5 Changes between 0.9.8zc and 0.9.8zd [xx XXX xxxx]
7 *) Abort handshake if server key exchange message is omitted for ephemeral
10 Thanks to Karthikeyan Bhargavan for reporting this issue.
14 *) Fix various certificate fingerprint issues.
16 By using non-DER or invalid encodings outside the signed portion of a
17 certificate the fingerprint can be changed without breaking the signature.
18 Although no details of the signed portion of the certificate can be changed
19 this can cause problems with some applications: e.g. those using the
20 certificate fingerprint for blacklists.
22 1. Reject signatures with non zero unused bits.
24 If the BIT STRING containing the signature has non zero unused bits reject
25 the signature. All current signature algorithms require zero unused bits.
27 2. Check certificate algorithm consistency.
29 Check the AlgorithmIdentifier inside TBS matches the one in the
30 certificate signature. NB: this will result in signature failure
31 errors for some broken certificates.
33 Thanks to Konrad Kraszewski from Google for reporting this issue.
35 3. Check DSA/ECDSA signatures use DER.
37 Reencode DSA/ECDSA signatures and compare with the original received
38 signature. Return an error if there is a mismatch.
40 This will reject various cases including garbage after signature
41 (thanks to Antti Karjalainen and Tuomo Untinen from the Codenomicon CROSS
42 program for discovering this case) and use of BER or invalid ASN.1 INTEGERs
43 (negative or with leading zeroes).
45 Further analysis was conducted and fixes were developed by Stephen Henson
46 of the OpenSSL core team.
51 Changes between 0.9.8zb and 0.9.8zc [15 Oct 2014]
53 *) Session Ticket Memory Leak.
55 When an OpenSSL SSL/TLS/DTLS server receives a session ticket the
56 integrity of that ticket is first verified. In the event of a session
57 ticket integrity check failing, OpenSSL will fail to free memory
58 causing a memory leak. By sending a large number of invalid session
59 tickets an attacker could exploit this issue in a Denial Of Service
64 *) Build option no-ssl3 is incomplete.
66 When OpenSSL is configured with "no-ssl3" as a build option, servers
67 could accept and complete a SSL 3.0 handshake, and clients could be
68 configured to send them.
70 [Akamai and the OpenSSL team]
72 *) Add support for TLS_FALLBACK_SCSV.
73 Client applications doing fallback retries should call
74 SSL_set_mode(s, SSL_MODE_SEND_FALLBACK_SCSV).
76 [Adam Langley, Bodo Moeller]
78 *) Add additional DigestInfo checks.
80 Reencode DigestInto in DER and check against the original when
81 verifying RSA signature: this will reject any improperly encoded
82 DigestInfo structures.
84 Note: this is a precautionary measure and no attacks are currently known.
88 Changes between 0.9.8za and 0.9.8zb [6 Aug 2014]
90 *) OpenSSL DTLS clients enabling anonymous (EC)DH ciphersuites are subject
91 to a denial of service attack. A malicious server can crash the client
92 with a null pointer dereference (read) by specifying an anonymous (EC)DH
93 ciphersuite and sending carefully crafted handshake messages.
95 Thanks to Felix Gröbert (Google) for discovering and researching this
100 *) By sending carefully crafted DTLS packets an attacker could cause openssl
101 to leak memory. This can be exploited through a Denial of Service attack.
102 Thanks to Adam Langley for discovering and researching this issue.
106 *) An attacker can force openssl to consume large amounts of memory whilst
107 processing DTLS handshake messages. This can be exploited through a
108 Denial of Service attack.
109 Thanks to Adam Langley for discovering and researching this issue.
113 *) An attacker can force an error condition which causes openssl to crash
114 whilst processing DTLS packets due to memory being freed twice. This
115 can be exploited through a Denial of Service attack.
116 Thanks to Adam Langley and Wan-Teh Chang for discovering and researching
121 *) A flaw in OBJ_obj2txt may cause pretty printing functions such as
122 X509_name_oneline, X509_name_print_ex et al. to leak some information
123 from the stack. Applications may be affected if they echo pretty printing
124 output to the attacker.
126 Thanks to Ivan Fratric (Google) for discovering this issue.
128 [Emilia Käsper, and Steve Henson]
130 *) Fix ec_GFp_simple_points_make_affine (thus, EC_POINTs_mul etc.)
131 for corner cases. (Certain input points at infinity could lead to
132 bogus results, with non-infinity inputs mapped to infinity too.)
135 Changes between 0.9.8y and 0.9.8za [5 Jun 2014]
137 *) Fix for SSL/TLS MITM flaw. An attacker using a carefully crafted
138 handshake can force the use of weak keying material in OpenSSL
139 SSL/TLS clients and servers.
141 Thanks to KIKUCHI Masashi (Lepidum Co. Ltd.) for discovering and
142 researching this issue. (CVE-2014-0224)
143 [KIKUCHI Masashi, Steve Henson]
145 *) Fix DTLS recursion flaw. By sending an invalid DTLS handshake to an
146 OpenSSL DTLS client the code can be made to recurse eventually crashing
149 Thanks to Imre Rad (Search-Lab Ltd.) for discovering this issue.
151 [Imre Rad, Steve Henson]
153 *) Fix DTLS invalid fragment vulnerability. A buffer overrun attack can
154 be triggered by sending invalid DTLS fragments to an OpenSSL DTLS
155 client or server. This is potentially exploitable to run arbitrary
156 code on a vulnerable client or server.
158 Thanks to Jüri Aedla for reporting this issue. (CVE-2014-0195)
159 [Jüri Aedla, Steve Henson]
161 *) Fix bug in TLS code where clients enable anonymous ECDH ciphersuites
162 are subject to a denial of service attack.
164 Thanks to Felix Gröbert and Ivan Fratric at Google for discovering
165 this issue. (CVE-2014-3470)
166 [Felix Gröbert, Ivan Fratric, Steve Henson]
168 *) Fix for the attack described in the paper "Recovering OpenSSL
169 ECDSA Nonces Using the FLUSH+RELOAD Cache Side-channel Attack"
170 by Yuval Yarom and Naomi Benger. Details can be obtained from:
171 http://eprint.iacr.org/2014/140
173 Thanks to Yuval Yarom and Naomi Benger for discovering this
174 flaw and to Yuval Yarom for supplying a fix (CVE-2014-0076)
175 [Yuval Yarom and Naomi Benger]
177 Thanks to mancha for backporting the fix to the 0.9.8 branch.
179 *) Fix handling of warning-level alerts in SSL23 client mode so they
180 don't cause client-side termination (eg. on SNI unrecognized_name
181 warnings). Add client and server support for six additional alerts
182 per RFC 6066 and RFC 4279.
185 *) Add option SSL_OP_SAFARI_ECDHE_ECDSA_BUG (part of SSL_OP_ALL) which
186 avoids preferring ECDHE-ECDSA ciphers when the client appears to be
187 Safari on OS X. Safari on OS X 10.8..10.8.3 advertises support for
188 several ECDHE-ECDSA ciphers, but fails to negotiate them. The bug
189 is fixed in OS X 10.8.4, but Apple have ruled out both hot fixing
190 10.8..10.8.3 and forcing users to upgrade to 10.8.4 or newer.
191 [Rob Stradling, Adam Langley]
193 Changes between 0.9.8x and 0.9.8y [5 Feb 2013]
195 *) Make the decoding of SSLv3, TLS and DTLS CBC records constant time.
197 This addresses the flaw in CBC record processing discovered by
198 Nadhem Alfardan and Kenny Paterson. Details of this attack can be found
199 at: http://www.isg.rhul.ac.uk/tls/
201 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
202 Security Group at Royal Holloway, University of London
203 (www.isg.rhul.ac.uk) for discovering this flaw and Adam Langley and
204 Emilia Käsper for the initial patch.
206 [Emilia Käsper, Adam Langley, Ben Laurie, Andy Polyakov, Steve Henson]
208 *) Return an error when checking OCSP signatures when key is NULL.
209 This fixes a DoS attack. (CVE-2013-0166)
212 *) Call OCSP Stapling callback after ciphersuite has been chosen, so
213 the right response is stapled. Also change SSL_get_certificate()
214 so it returns the certificate actually sent.
215 See http://rt.openssl.org/Ticket/Display.html?id=2836.
217 [Rob Stradling <rob.stradling@comodo.com>]
219 *) Fix possible deadlock when decoding public keys.
222 Changes between 0.9.8w and 0.9.8x [10 May 2012]
224 *) Sanity check record length before skipping explicit IV in DTLS
227 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic
228 fuzzing as a service testing platform.
232 *) Initialise tkeylen properly when encrypting CMS messages.
233 Thanks to Solar Designer of Openwall for reporting this issue.
236 Changes between 0.9.8v and 0.9.8w [23 Apr 2012]
238 *) The fix for CVE-2012-2110 did not take into account that the
239 'len' argument to BUF_MEM_grow and BUF_MEM_grow_clean is an
240 int in OpenSSL 0.9.8, making it still vulnerable. Fix by
241 rejecting negative len parameter. (CVE-2012-2131)
242 [Tomas Hoger <thoger@redhat.com>]
244 Changes between 0.9.8u and 0.9.8v [19 Apr 2012]
246 *) Check for potentially exploitable overflows in asn1_d2i_read_bio
247 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer
248 in CRYPTO_realloc_clean.
250 Thanks to Tavis Ormandy, Google Security Team, for discovering this
251 issue and to Adam Langley <agl@chromium.org> for fixing it.
253 [Adam Langley (Google), Tavis Ormandy, Google Security Team]
255 Changes between 0.9.8t and 0.9.8u [12 Mar 2012]
257 *) Fix MMA (Bleichenbacher's attack on PKCS #1 v1.5 RSA padding) weakness
258 in CMS and PKCS7 code. When RSA decryption fails use a random key for
259 content decryption and always return the same error. Note: this attack
260 needs on average 2^20 messages so it only affects automated senders. The
261 old behaviour can be reenabled in the CMS code by setting the
262 CMS_DEBUG_DECRYPT flag: this is useful for debugging and testing where
263 an MMA defence is not necessary.
264 Thanks to Ivan Nestlerode <inestlerode@us.ibm.com> for discovering
265 this issue. (CVE-2012-0884)
268 *) Fix CVE-2011-4619: make sure we really are receiving a
269 client hello before rejecting multiple SGC restarts. Thanks to
270 Ivan Nestlerode <inestlerode@us.ibm.com> for discovering this bug.
273 Changes between 0.9.8s and 0.9.8t [18 Jan 2012]
275 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109.
276 Thanks to Antonio Martin, Enterprise Secure Access Research and
277 Development, Cisco Systems, Inc. for discovering this bug and
278 preparing a fix. (CVE-2012-0050)
281 Changes between 0.9.8r and 0.9.8s [4 Jan 2012]
283 *) Nadhem Alfardan and Kenny Paterson have discovered an extension
284 of the Vaudenay padding oracle attack on CBC mode encryption
285 which enables an efficient plaintext recovery attack against
286 the OpenSSL implementation of DTLS. Their attack exploits timing
287 differences arising during decryption processing. A research
288 paper describing this attack can be found at:
289 http://www.isg.rhul.ac.uk/~kp/dtls.pdf
290 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
291 Security Group at Royal Holloway, University of London
292 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann
293 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de>
294 for preparing the fix. (CVE-2011-4108)
295 [Robin Seggelmann, Michael Tuexen]
297 *) Stop policy check failure freeing same buffer twice. (CVE-2011-4109)
298 [Ben Laurie, Kasper <ekasper@google.com>]
300 *) Clear bytes used for block padding of SSL 3.0 records.
302 [Adam Langley (Google)]
304 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George
305 Kadianakis <desnacked@gmail.com> for discovering this issue and
306 Adam Langley for preparing the fix. (CVE-2011-4619)
307 [Adam Langley (Google)]
309 *) Prevent malformed RFC3779 data triggering an assertion failure.
310 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw
311 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577)
312 [Rob Austein <sra@hactrn.net>]
314 *) Fix ssl_ciph.c set-up race.
315 [Adam Langley (Google)]
317 *) Fix spurious failures in ecdsatest.c.
318 [Emilia Käsper (Google)]
320 *) Fix the BIO_f_buffer() implementation (which was mixing different
321 interpretations of the '..._len' fields).
322 [Adam Langley (Google)]
324 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
325 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
326 threads won't reuse the same blinding coefficients.
328 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
329 lock to call BN_BLINDING_invert_ex, and avoids one use of
330 BN_BLINDING_update for each BN_BLINDING structure (previously,
331 the last update always remained unused).
332 [Emilia Käsper (Google)]
334 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
335 for multi-threaded use of ECDH.
336 [Adam Langley (Google)]
338 *) Fix x509_name_ex_d2i memory leak on bad inputs.
341 *) Add protection against ECDSA timing attacks as mentioned in the paper
342 by Billy Bob Brumley and Nicola Tuveri, see:
344 http://eprint.iacr.org/2011/232.pdf
346 [Billy Bob Brumley and Nicola Tuveri]
348 Changes between 0.9.8q and 0.9.8r [8 Feb 2011]
350 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
351 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
353 *) Fix bug in string printing code: if *any* escaping is enabled we must
354 escape the escape character (backslash) or the resulting string is
358 Changes between 0.9.8p and 0.9.8q [2 Dec 2010]
360 *) Disable code workaround for ancient and obsolete Netscape browsers
361 and servers: an attacker can use it in a ciphersuite downgrade attack.
362 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
365 *) Fixed J-PAKE implementation error, originally discovered by
366 Sebastien Martini, further info and confirmation from Stefan
367 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
370 Changes between 0.9.8o and 0.9.8p [16 Nov 2010]
372 *) Fix extension code to avoid race conditions which can result in a buffer
373 overrun vulnerability: resumed sessions must not be modified as they can
374 be shared by multiple threads. CVE-2010-3864
377 *) Fix for double free bug in ssl/s3_clnt.c CVE-2010-2939
380 *) Don't reencode certificate when calculating signature: cache and use
381 the original encoding instead. This makes signature verification of
382 some broken encodings work correctly.
385 *) ec2_GF2m_simple_mul bugfix: compute correct result if the output EC_POINT
386 is also one of the inputs.
387 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
389 *) Don't repeatedly append PBE algorithms to table if they already exist.
390 Sort table on each new add. This effectively makes the table read only
391 after all algorithms are added and subsequent calls to PKCS12_pbe_add
395 Changes between 0.9.8n and 0.9.8o [01 Jun 2010]
397 [NB: OpenSSL 0.9.8o and later 0.9.8 patch levels were released after
400 *) Correct a typo in the CMS ASN1 module which can result in invalid memory
401 access or freeing data twice (CVE-2010-0742)
402 [Steve Henson, Ronald Moesbergen <intercommit@gmail.com>]
404 *) Add SHA2 algorithms to SSL_library_init(). SHA2 is becoming far more
405 common in certificates and some applications which only call
406 SSL_library_init and not OpenSSL_add_all_algorithms() will fail.
410 Reduce copying into .apps and .test in makevms.com
411 Don't try to use blank CA certificate in CA.com
412 Allow use of C files from original directories in maketests.com
413 [Steven M. Schweda" <sms@antinode.info>]
415 Changes between 0.9.8m and 0.9.8n [24 Mar 2010]
417 *) When rejecting SSL/TLS records due to an incorrect version number, never
418 update s->server with a new major version number. As of
419 - OpenSSL 0.9.8m if 'short' is a 16-bit type,
420 - OpenSSL 0.9.8f if 'short' is longer than 16 bits,
421 the previous behavior could result in a read attempt at NULL when
422 receiving specific incorrect SSL/TLS records once record payload
423 protection is active. (CVE-2010-0740)
424 [Bodo Moeller, Adam Langley <agl@chromium.org>]
426 *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL
427 could be crashed if the relevant tables were not present (e.g. chrooted).
428 [Tomas Hoger <thoger@redhat.com>]
430 Changes between 0.9.8l and 0.9.8m [25 Feb 2010]
432 *) Always check bn_wexpend() return values for failure. (CVE-2009-3245)
433 [Martin Olsson, Neel Mehta]
435 *) Fix X509_STORE locking: Every 'objs' access requires a lock (to
436 accommodate for stack sorting, always a write lock!).
439 *) On some versions of WIN32 Heap32Next is very slow. This can cause
440 excessive delays in the RAND_poll(): over a minute. As a workaround
441 include a time check in the inner Heap32Next loop too.
444 *) The code that handled flushing of data in SSL/TLS originally used the
445 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused
446 the problem outlined in PR#1949. The fix suggested there however can
447 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions
448 of Apache). So instead simplify the code to flush unconditionally.
449 This should be fine since flushing with no data to flush is a no op.
452 *) Handle TLS versions 2.0 and later properly and correctly use the
453 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way
454 off ancient servers have a habit of sticking around for a while...
457 *) Modify compression code so it frees up structures without using the
458 ex_data callbacks. This works around a problem where some applications
459 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when
460 restarting) then use compression (e.g. SSL with compression) later.
461 This results in significant per-connection memory leaks and
462 has caused some security issues including CVE-2008-1678 and
466 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't
467 change when encrypting or decrypting.
470 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to
471 connect and renegotiate with servers which do not support RI.
472 Until RI is more widely deployed this option is enabled by default.
475 *) Add "missing" ssl ctrls to clear options and mode.
478 *) If client attempts to renegotiate and doesn't support RI respond with
479 a no_renegotiation alert as required by RFC5746. Some renegotiating
480 TLS clients will continue a connection gracefully when they receive
481 the alert. Unfortunately OpenSSL mishandled this alert and would hang
482 waiting for a server hello which it will never receive. Now we treat a
483 received no_renegotiation alert as a fatal error. This is because
484 applications requesting a renegotiation might well expect it to succeed
485 and would have no code in place to handle the server denying it so the
486 only safe thing to do is to terminate the connection.
489 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if
490 peer supports secure renegotiation and 0 otherwise. Print out peer
491 renegotiation support in s_client/s_server.
494 *) Replace the highly broken and deprecated SPKAC certification method with
495 the updated NID creation version. This should correctly handle UTF8.
498 *) Implement RFC5746. Re-enable renegotiation but require the extension
499 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
500 turns out to be a bad idea. It has been replaced by
501 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with
502 SSL_CTX_set_options(). This is really not recommended unless you
503 know what you are doing.
504 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson]
506 *) Fixes to stateless session resumption handling. Use initial_ctx when
507 issuing and attempting to decrypt tickets in case it has changed during
508 servername handling. Use a non-zero length session ID when attempting
509 stateless session resumption: this makes it possible to determine if
510 a resumption has occurred immediately after receiving server hello
511 (several places in OpenSSL subtly assume this) instead of later in
515 *) The functions ENGINE_ctrl(), OPENSSL_isservice(),
516 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
517 fixes for a few places where the return code is not checked
519 [Julia Lawall <julia@diku.dk>]
521 *) Add --strict-warnings option to Configure script to include devteam
522 warnings in other configurations.
525 *) Add support for --libdir option and LIBDIR variable in makefiles. This
526 makes it possible to install openssl libraries in locations which
527 have names other than "lib", for example "/usr/lib64" which some
529 [Steve Henson, based on patch from Jeremy Utley]
531 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
532 X690 8.9.12 and can produce some misleading textual output of OIDs.
533 [Steve Henson, reported by Dan Kaminsky]
535 *) Delete MD2 from algorithm tables. This follows the recommendation in
536 several standards that it is not used in new applications due to
537 several cryptographic weaknesses. For binary compatibility reasons
538 the MD2 API is still compiled in by default.
541 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
545 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
546 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
548 [Guenter <lists@gknw.net>]
550 *) Fix the server certificate chain building code to use X509_verify_cert(),
551 it used to have an ad-hoc builder which was unable to cope with anything
552 other than a simple chain.
553 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
555 *) Don't check self signed certificate signatures in X509_verify_cert()
556 by default (a flag can override this): it just wastes time without
557 adding any security. As a useful side effect self signed root CAs
558 with non-FIPS digests are now usable in FIPS mode.
561 *) In dtls1_process_out_of_seq_message() the check if the current message
562 is already buffered was missing. For every new message was memory
563 allocated, allowing an attacker to perform an denial of service attack
564 with sending out of seq handshake messages until there is no memory
565 left. Additionally every future messege was buffered, even if the
566 sequence number made no sense and would be part of another handshake.
567 So only messages with sequence numbers less than 10 in advance will be
568 buffered. (CVE-2009-1378)
569 [Robin Seggelmann, discovered by Daniel Mentz]
571 *) Records are buffered if they arrive with a future epoch to be
572 processed after finishing the corresponding handshake. There is
573 currently no limitation to this buffer allowing an attacker to perform
574 a DOS attack with sending records with future epochs until there is no
575 memory left. This patch adds the pqueue_size() function to detemine
576 the size of a buffer and limits the record buffer to 100 entries.
578 [Robin Seggelmann, discovered by Daniel Mentz]
580 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
581 parent structure is freed. (CVE-2009-1379)
584 *) Handle non-blocking I/O properly in SSL_shutdown() call.
585 [Darryl Miles <darryl-mailinglists@netbauds.net>]
588 [Ilya O. <vrghost@gmail.com>]
590 Changes between 0.9.8k and 0.9.8l [5 Nov 2009]
592 *) Disable renegotiation completely - this fixes a severe security
593 problem (CVE-2009-3555) at the cost of breaking all
594 renegotiation. Renegotiation can be re-enabled by setting
595 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at
596 run-time. This is really not recommended unless you know what
600 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
602 *) Don't set val to NULL when freeing up structures, it is freed up by
603 underlying code. If sizeof(void *) > sizeof(long) this can result in
604 zeroing past the valid field. (CVE-2009-0789)
605 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
607 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
608 checked correctly. This would allow some invalid signed attributes to
609 appear to verify correctly. (CVE-2009-0591)
610 [Ivan Nestlerode <inestlerode@us.ibm.com>]
612 *) Reject UniversalString and BMPString types with invalid lengths. This
613 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
614 a legal length. (CVE-2009-0590)
617 *) Set S/MIME signing as the default purpose rather than setting it
618 unconditionally. This allows applications to override it at the store
622 *) Permit restricted recursion of ASN1 strings. This is needed in practice
623 to handle some structures.
626 *) Improve efficiency of mem_gets: don't search whole buffer each time
628 [Jeremy Shapiro <jnshapir@us.ibm.com>]
630 *) New -hex option for openssl rand.
633 *) Print out UTF8String and NumericString when parsing ASN1.
636 *) Support NumericString type for name components.
639 *) Allow CC in the environment to override the automatically chosen
640 compiler. Note that nothing is done to ensure flags work with the
644 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
646 *) Properly check EVP_VerifyFinal() and similar return values
648 [Ben Laurie, Bodo Moeller, Google Security Team]
650 *) Enable TLS extensions by default.
653 *) Allow the CHIL engine to be loaded, whether the application is
654 multithreaded or not. (This does not release the developer from the
655 obligation to set up the dynamic locking callbacks.)
656 [Sander Temme <sander@temme.net>]
658 *) Use correct exit code if there is an error in dgst command.
659 [Steve Henson; problem pointed out by Roland Dirlewanger]
661 *) Tweak Configure so that you need to say "experimental-jpake" to enable
662 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
665 *) Add experimental JPAKE support, including demo authentication in
666 s_client and s_server.
669 *) Set the comparison function in v3_addr_canonize().
670 [Rob Austein <sra@hactrn.net>]
672 *) Add support for XMPP STARTTLS in s_client.
673 [Philip Paeps <philip@freebsd.org>]
675 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
676 to ensure that even with this option, only ciphersuites in the
677 server's preference list will be accepted. (Note that the option
678 applies only when resuming a session, so the earlier behavior was
679 just about the algorithm choice for symmetric cryptography.)
682 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
684 *) Fix NULL pointer dereference if a DTLS server received
685 ChangeCipherSpec as first record (CVE-2009-1386).
688 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
689 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
692 *) The fix in 0.9.8c that supposedly got rid of unsafe
693 double-checked locking was incomplete for RSA blinding,
694 addressing just one layer of what turns out to have been
695 doubly unsafe triple-checked locking.
697 So now fix this for real by retiring the MONT_HELPER macro
698 in crypto/rsa/rsa_eay.c.
700 [Bodo Moeller; problem pointed out by Marius Schilder]
702 *) Various precautionary measures:
704 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
706 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
707 (NB: This would require knowledge of the secret session ticket key
708 to exploit, in which case you'd be SOL either way.)
710 - Change bn_nist.c so that it will properly handle input BIGNUMs
711 outside the expected range.
713 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
716 [Neel Mehta, Bodo Moeller]
718 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
719 the load fails. Useful for distros.
720 [Ben Laurie and the FreeBSD team]
722 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
725 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
728 *) Expand ENGINE to support engine supplied SSL client certificate functions.
730 This work was sponsored by Logica.
733 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
734 keystores. Support for SSL/TLS client authentication too.
735 Not compiled unless enable-capieng specified to Configure.
737 This work was sponsored by Logica.
740 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
741 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
742 attribute creation routines such as certifcate requests and PKCS#12
746 Changes between 0.9.8g and 0.9.8h [28 May 2008]
748 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
749 handshake which could lead to a cilent crash as found using the
750 Codenomicon TLS test suite (CVE-2008-1672)
751 [Steve Henson, Mark Cox]
753 *) Fix double free in TLS server name extensions which could lead to
754 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
757 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
759 Clear the error queue to ensure that error entries left from
760 older function calls do not interfere with the correct operation.
761 [Lutz Jaenicke, Erik de Castro Lopo]
763 *) Remove root CA certificates of commercial CAs:
765 The OpenSSL project does not recommend any specific CA and does not
766 have any policy with respect to including or excluding any CA.
767 Therefore it does not make any sense to ship an arbitrary selection
768 of root CA certificates with the OpenSSL software.
771 *) RSA OAEP patches to fix two separate invalid memory reads.
772 The first one involves inputs when 'lzero' is greater than
773 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
774 before the beginning of from). The second one involves inputs where
775 the 'db' section contains nothing but zeroes (there is a one-byte
776 invalid read after the end of 'db').
777 [Ivan Nestlerode <inestlerode@us.ibm.com>]
779 *) Partial backport from 0.9.9-dev:
781 Introduce bn_mul_mont (dedicated Montgomery multiplication
782 procedure) as a candidate for BIGNUM assembler implementation.
783 While 0.9.9-dev uses assembler for various architectures, only
784 x86_64 is available by default here in the 0.9.8 branch, and
785 32-bit x86 is available through a compile-time setting.
787 To try the 32-bit x86 assembler implementation, use Configure
788 option "enable-montasm" (which exists only for this backport).
790 As "enable-montasm" for 32-bit x86 disclaims code stability
791 anyway, in this constellation we activate additional code
792 backported from 0.9.9-dev for further performance improvements,
793 namely BN_from_montgomery_word. (To enable this otherwise,
794 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
796 [Andy Polyakov (backport partially by Bodo Moeller)]
798 *) Add TLS session ticket callback. This allows an application to set
799 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
800 values. This is useful for key rollover for example where several key
801 sets may exist with different names.
804 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
805 This was broken until now in 0.9.8 releases, such that the only way
806 a registered ENGINE could be used (assuming it initialises
807 successfully on the host) was to explicitly set it as the default
808 for the relevant algorithms. This is in contradiction with 0.9.7
809 behaviour and the documentation. With this fix, when an ENGINE is
810 registered into a given algorithm's table of implementations, the
811 'uptodate' flag is reset so that auto-discovery will be used next
812 time a new context for that algorithm attempts to select an
814 [Ian Lister (tweaked by Geoff Thorpe)]
816 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
817 implemention in the following ways:
819 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
822 Lack of BER streaming support means one pass streaming processing is
823 only supported if data is detached: setting the streaming flag is
824 ignored for embedded content.
826 CMS support is disabled by default and must be explicitly enabled
827 with the enable-cms configuration option.
830 *) Update the GMP engine glue to do direct copies between BIGNUM and
831 mpz_t when openssl and GMP use the same limb size. Otherwise the
832 existing "conversion via a text string export" trick is still used.
833 [Paul Sheer <paulsheer@gmail.com>]
835 *) Zlib compression BIO. This is a filter BIO which compressed and
836 uncompresses any data passed through it.
839 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
840 RFC3394 compatible AES key wrapping.
843 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
844 sets string data without copying. X509_ALGOR_set0() and
845 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
846 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
847 from an X509_ATTRIBUTE structure optionally checking it occurs only
848 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
852 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
853 to get the expected BN_FLG_CONSTTIME behavior.
854 [Bodo Moeller (Google)]
858 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
859 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
860 - added some more tests to do_tests.pl
861 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
862 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
863 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
864 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
865 - various changes to netware.pl to enable gcc-cross builds on Win32
867 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
868 - various changes to fix missing prototype warnings
869 - fixed x86nasm.pl to create correct asm files for NASM COFF output
870 - added AES, WHIRLPOOL and CPUID assembler code to build files
871 - added missing AES assembler make rules to mk1mf.pl
872 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
873 [Guenter Knauf <eflash@gmx.net>]
875 *) Implement certificate status request TLS extension defined in RFC3546.
876 A client can set the appropriate parameters and receive the encoded
877 OCSP response via a callback. A server can query the supplied parameters
878 and set the encoded OCSP response in the callback. Add simplified examples
879 to s_client and s_server.
882 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
885 + Binary incompatibility of ssl_ctx_st structure
886 + DTLS interoperation with non-compliant servers
887 + Don't call get_session_cb() without proposed session
888 + Fix ia64 assembler code
889 [Andy Polyakov, Steve Henson]
891 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
893 *) DTLS Handshake overhaul. There were longstanding issues with
894 OpenSSL DTLS implementation, which were making it impossible for
895 RFC 4347 compliant client to communicate with OpenSSL server.
896 Unfortunately just fixing these incompatibilities would "cut off"
897 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
898 server keeps tolerating non RFC compliant syntax. The opposite is
899 not true, 0.9.8f client can not communicate with earlier server.
900 This update even addresses CVE-2007-4995.
903 *) Changes to avoid need for function casts in OpenSSL: some compilers
904 (gcc 4.2 and later) reject their use.
905 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
908 *) Add RFC4507 support to OpenSSL. This includes the corrections in
909 RFC4507bis. The encrypted ticket format is an encrypted encoded
910 SSL_SESSION structure, that way new session features are automatically
913 If a client application caches session in an SSL_SESSION structure
914 support is transparent because tickets are now stored in the encoded
917 The SSL_CTX structure automatically generates keys for ticket
918 protection in servers so again support should be possible
919 with no application modification.
921 If a client or server wishes to disable RFC4507 support then the option
922 SSL_OP_NO_TICKET can be set.
924 Add a TLS extension debugging callback to allow the contents of any client
925 or server extensions to be examined.
927 This work was sponsored by Google.
930 *) Add initial support for TLS extensions, specifically for the server_name
931 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
932 have new members for a host name. The SSL data structure has an
933 additional member SSL_CTX *initial_ctx so that new sessions can be
934 stored in that context to allow for session resumption, even after the
935 SSL has been switched to a new SSL_CTX in reaction to a client's
936 server_name extension.
938 New functions (subject to change):
941 SSL_get_servername_type()
944 New CTRL codes and macros (subject to change):
946 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
947 - SSL_CTX_set_tlsext_servername_callback()
948 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
949 - SSL_CTX_set_tlsext_servername_arg()
950 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
952 openssl s_client has a new '-servername ...' option.
954 openssl s_server has new options '-servername_host ...', '-cert2 ...',
955 '-key2 ...', '-servername_fatal' (subject to change). This allows
956 testing the HostName extension for a specific single host name ('-cert'
957 and '-key' remain fallbacks for handshakes without HostName
958 negotiation). If the unrecogninzed_name alert has to be sent, this by
959 default is a warning; it becomes fatal with the '-servername_fatal'
962 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
964 *) Add AES and SSE2 assembly language support to VC++ build.
967 *) Mitigate attack on final subtraction in Montgomery reduction.
970 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
971 (which previously caused an internal error).
974 *) Squeeze another 10% out of IGE mode when in != out.
977 *) AES IGE mode speedup.
978 [Dean Gaudet (Google)]
980 *) Add the Korean symmetric 128-bit cipher SEED (see
981 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
982 add SEED ciphersuites from RFC 4162:
984 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
985 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
986 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
987 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
989 To minimize changes between patchlevels in the OpenSSL 0.9.8
990 series, SEED remains excluded from compilation unless OpenSSL
991 is configured with 'enable-seed'.
994 *) Mitigate branch prediction attacks, which can be practical if a
995 single processor is shared, allowing a spy process to extract
996 information. For detailed background information, see
997 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
998 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
999 and Necessary Software Countermeasures"). The core of the change
1000 are new versions BN_div_no_branch() and
1001 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
1002 respectively, which are slower, but avoid the security-relevant
1003 conditional branches. These are automatically called by BN_div()
1004 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
1005 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
1006 remove a conditional branch.
1008 BN_FLG_CONSTTIME is the new name for the previous
1009 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
1010 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
1011 in the exponent causes BN_mod_exp_mont() to use the alternative
1012 implementation in BN_mod_exp_mont_consttime().) The old name
1013 remains as a deprecated alias.
1015 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
1016 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
1017 constant-time implementations for more than just exponentiation.
1018 Here too the old name is kept as a deprecated alias.
1020 BN_BLINDING_new() will now use BN_dup() for the modulus so that
1021 the BN_BLINDING structure gets an independent copy of the
1022 modulus. This means that the previous "BIGNUM *m" argument to
1023 BN_BLINDING_new() and to BN_BLINDING_create_param() now
1024 essentially becomes "const BIGNUM *m", although we can't actually
1025 change this in the header file before 0.9.9. It allows
1026 RSA_setup_blinding() to use BN_with_flags() on the modulus to
1027 enable BN_FLG_CONSTTIME.
1029 [Matthew D Wood (Intel Corp)]
1031 *) In the SSL/TLS server implementation, be strict about session ID
1032 context matching (which matters if an application uses a single
1033 external cache for different purposes). Previously,
1034 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
1035 set. This did ensure strict client verification, but meant that,
1036 with applications using a single external cache for quite
1037 different requirements, clients could circumvent ciphersuite
1038 restrictions for a given session ID context by starting a session
1039 in a different context.
1042 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1043 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1044 authentication-only ciphersuites.
1047 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
1048 not complete and could lead to a possible single byte overflow
1049 (CVE-2007-5135) [Ben Laurie]
1051 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
1053 *) Since AES128 and AES256 (and similarly Camellia128 and
1054 Camellia256) share a single mask bit in the logic of
1055 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1056 kludge to work properly if AES128 is available and AES256 isn't
1057 (or if Camellia128 is available and Camellia256 isn't).
1060 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
1061 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
1062 When a point or a seed is encoded in a BIT STRING, we need to
1063 prevent the removal of trailing zero bits to get the proper DER
1064 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
1065 of a NamedBitList, for which trailing 0 bits need to be removed.)
1068 *) Have SSL/TLS server implementation tolerate "mismatched" record
1069 protocol version while receiving ClientHello even if the
1070 ClientHello is fragmented. (The server can't insist on the
1071 particular protocol version it has chosen before the ServerHello
1072 message has informed the client about his choice.)
1075 *) Add RFC 3779 support.
1076 [Rob Austein for ARIN, Ben Laurie]
1078 *) Load error codes if they are not already present instead of using a
1079 static variable. This allows them to be cleanly unloaded and reloaded.
1080 Improve header file function name parsing.
1083 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
1084 or CAPABILITY handshake as required by RFCs.
1087 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
1089 *) Introduce limits to prevent malicious keys being able to
1090 cause a denial of service. (CVE-2006-2940)
1091 [Steve Henson, Bodo Moeller]
1093 *) Fix ASN.1 parsing of certain invalid structures that can result
1094 in a denial of service. (CVE-2006-2937) [Steve Henson]
1096 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1097 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1099 *) Fix SSL client code which could crash if connecting to a
1100 malicious SSLv2 server. (CVE-2006-4343)
1101 [Tavis Ormandy and Will Drewry, Google Security Team]
1103 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
1104 match only those. Before that, "AES256-SHA" would be interpreted
1105 as a pattern and match "AES128-SHA" too (since AES128-SHA got
1106 the same strength classification in 0.9.7h) as we currently only
1107 have a single AES bit in the ciphersuite description bitmap.
1108 That change, however, also applied to ciphersuite strings such as
1109 "RC4-MD5" that intentionally matched multiple ciphersuites --
1110 namely, SSL 2.0 ciphersuites in addition to the more common ones
1111 from SSL 3.0/TLS 1.0.
1113 So we change the selection algorithm again: Naming an explicit
1114 ciphersuite selects this one ciphersuite, and any other similar
1115 ciphersuite (same bitmap) from *other* protocol versions.
1116 Thus, "RC4-MD5" again will properly select both the SSL 2.0
1117 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
1119 Since SSL 2.0 does not have any ciphersuites for which the
1120 128/256 bit distinction would be relevant, this works for now.
1121 The proper fix will be to use different bits for AES128 and
1122 AES256, which would have avoided the problems from the beginning;
1123 however, bits are scarce, so we can only do this in a new release
1124 (not just a patchlevel) when we can change the SSL_CIPHER
1125 definition to split the single 'unsigned long mask' bitmap into
1126 multiple values to extend the available space.
1130 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
1132 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1133 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1135 *) Add AES IGE and biIGE modes.
1138 *) Change the Unix randomness entropy gathering to use poll() when
1139 possible instead of select(), since the latter has some
1140 undesirable limitations.
1141 [Darryl Miles via Richard Levitte and Bodo Moeller]
1143 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
1144 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
1145 cannot be implicitly activated as part of, e.g., the "AES" alias.
1146 However, please upgrade to OpenSSL 0.9.9[-dev] for
1147 non-experimental use of the ECC ciphersuites to get TLS extension
1148 support, which is required for curve and point format negotiation
1149 to avoid potential handshake problems.
1152 *) Disable rogue ciphersuites:
1154 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1155 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1156 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1158 The latter two were purportedly from
1159 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1162 Also deactivate the remaining ciphersuites from
1163 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1164 unofficial, and the ID has long expired.
1167 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1168 dual-core machines) and other potential thread-safety issues.
1171 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
1172 versions), which is now available for royalty-free use
1173 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
1174 Also, add Camellia TLS ciphersuites from RFC 4132.
1176 To minimize changes between patchlevels in the OpenSSL 0.9.8
1177 series, Camellia remains excluded from compilation unless OpenSSL
1178 is configured with 'enable-camellia'.
1181 *) Disable the padding bug check when compression is in use. The padding
1182 bug check assumes the first packet is of even length, this is not
1183 necessarily true if compresssion is enabled and can result in false
1184 positives causing handshake failure. The actual bug test is ancient
1185 code so it is hoped that implementations will either have fixed it by
1186 now or any which still have the bug do not support compression.
1189 Changes between 0.9.8a and 0.9.8b [04 May 2006]
1191 *) When applying a cipher rule check to see if string match is an explicit
1192 cipher suite and only match that one cipher suite if it is.
1195 *) Link in manifests for VC++ if needed.
1196 [Austin Ziegler <halostatue@gmail.com>]
1198 *) Update support for ECC-based TLS ciphersuites according to
1199 draft-ietf-tls-ecc-12.txt with proposed changes (but without
1200 TLS extensions, which are supported starting with the 0.9.9
1201 branch, not in the OpenSSL 0.9.8 branch).
1204 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
1205 opaque EVP_CIPHER_CTX handling.
1208 *) Fixes and enhancements to zlib compression code. We now only use
1209 "zlib1.dll" and use the default __cdecl calling convention on Win32
1210 to conform with the standards mentioned here:
1211 http://www.zlib.net/DLL_FAQ.txt
1212 Static zlib linking now works on Windows and the new --with-zlib-include
1213 --with-zlib-lib options to Configure can be used to supply the location
1214 of the headers and library. Gracefully handle case where zlib library
1218 *) Several fixes and enhancements to the OID generation code. The old code
1219 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
1220 handle numbers larger than ULONG_MAX, truncated printing and had a
1221 non standard OBJ_obj2txt() behaviour.
1224 *) Add support for building of engines under engine/ as shared libraries
1225 under VC++ build system.
1228 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
1229 Hopefully, we will not see any false combination of paths any more.
1232 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
1234 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1235 (part of SSL_OP_ALL). This option used to disable the
1236 countermeasure against man-in-the-middle protocol-version
1237 rollback in the SSL 2.0 server implementation, which is a bad
1238 idea. (CVE-2005-2969)
1240 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1241 for Information Security, National Institute of Advanced Industrial
1242 Science and Technology [AIST], Japan)]
1244 *) Add two function to clear and return the verify parameter flags.
1247 *) Keep cipherlists sorted in the source instead of sorting them at
1248 runtime, thus removing the need for a lock.
1251 *) Avoid some small subgroup attacks in Diffie-Hellman.
1252 [Nick Mathewson and Ben Laurie]
1254 *) Add functions for well-known primes.
1257 *) Extended Windows CE support.
1258 [Satoshi Nakamura and Andy Polyakov]
1260 *) Initialize SSL_METHOD structures at compile time instead of during
1261 runtime, thus removing the need for a lock.
1264 *) Make PKCS7_decrypt() work even if no certificate is supplied by
1265 attempting to decrypt each encrypted key in turn. Add support to
1269 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
1271 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
1274 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
1277 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
1278 key into the same file any more.
1281 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
1284 *) Add -utf8 command line and config file option to 'ca'.
1285 [Stefan <stf@udoma.org]
1287 *) Removed the macro des_crypt(), as it seems to conflict with some
1288 libraries. Use DES_crypt().
1291 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
1292 involves renaming the source and generated shared-libs for
1293 both. The engines will accept the corrected or legacy ids
1294 ('ncipher' and '4758_cca' respectively) when binding. NB,
1295 this only applies when building 'shared'.
1296 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
1298 *) Add attribute functions to EVP_PKEY structure. Modify
1299 PKCS12_create() to recognize a CSP name attribute and
1300 use it. Make -CSP option work again in pkcs12 utility.
1303 *) Add new functionality to the bn blinding code:
1304 - automatic re-creation of the BN_BLINDING parameters after
1305 a fixed number of uses (currently 32)
1306 - add new function for parameter creation
1307 - introduce flags to control the update behaviour of the
1308 BN_BLINDING parameters
1309 - hide BN_BLINDING structure
1310 Add a second BN_BLINDING slot to the RSA structure to improve
1311 performance when a single RSA object is shared among several
1315 *) Add support for DTLS.
1316 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
1318 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
1319 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
1322 *) Remove buggy and incompletet DH cert support from
1323 ssl/ssl_rsa.c and ssl/s3_both.c
1326 *) Use SHA-1 instead of MD5 as the default digest algorithm for
1327 the apps/openssl applications.
1330 *) Compile clean with "-Wall -Wmissing-prototypes
1331 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
1332 DEBUG_SAFESTACK must also be set.
1335 *) Change ./Configure so that certain algorithms can be disabled by default.
1336 The new counterpiece to "no-xxx" is "enable-xxx".
1338 The patented RC5 and MDC2 algorithms will now be disabled unless
1339 "enable-rc5" and "enable-mdc2", respectively, are specified.
1341 (IDEA remains enabled despite being patented. This is because IDEA
1342 is frequently required for interoperability, and there is no license
1343 fee for non-commercial use. As before, "no-idea" can be used to
1344 avoid this algorithm.)
1348 *) Add processing of proxy certificates (see RFC 3820). This work was
1349 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
1350 EGEE (Enabling Grids for E-science in Europe).
1353 *) RC4 performance overhaul on modern architectures/implementations, such
1354 as Intel P4, IA-64 and AMD64.
1357 *) New utility extract-section.pl. This can be used specify an alternative
1358 section number in a pod file instead of having to treat each file as
1359 a separate case in Makefile. This can be done by adding two lines to the
1362 =for comment openssl_section:XXX
1364 The blank line is mandatory.
1368 *) New arguments -certform, -keyform and -pass for s_client and s_server
1369 to allow alternative format key and certificate files and passphrase
1373 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
1374 update associated structures and add various utility functions.
1376 Add new policy related verify parameters, include policy checking in
1377 standard verify code. Enhance 'smime' application with extra parameters
1378 to support policy checking and print out.
1381 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
1382 Nehemiah processors. These extensions support AES encryption in hardware
1383 as well as RNG (though RNG support is currently disabled).
1384 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
1386 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
1389 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
1390 [Andy Polyakov and a number of other people]
1392 *) Improved PowerPC platform support. Most notably BIGNUM assembler
1393 implementation contributed by IBM.
1394 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
1396 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
1397 exponent rather than 'unsigned long'. There is a corresponding change to
1398 the new 'rsa_keygen' element of the RSA_METHOD structure.
1399 [Jelte Jansen, Geoff Thorpe]
1401 *) Functionality for creating the initial serial number file is now
1402 moved from CA.pl to the 'ca' utility with a new option -create_serial.
1404 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
1405 number file to 1, which is bound to cause problems. To avoid
1406 the problems while respecting compatibility between different 0.9.7
1407 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
1408 CA.pl for serial number initialization. With the new release 0.9.8,
1409 we can fix the problem directly in the 'ca' utility.)
1412 *) Reduced header interdepencies by declaring more opaque objects in
1413 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
1414 give fewer recursive includes, which could break lazy source code - so
1415 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
1416 developers should define this symbol when building and using openssl to
1417 ensure they track the recommended behaviour, interfaces, [etc], but
1418 backwards-compatible behaviour prevails when this isn't defined.
1421 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
1424 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
1425 This will generate a random key of the appropriate length based on the
1426 cipher context. The EVP_CIPHER can provide its own random key generation
1427 routine to support keys of a specific form. This is used in the des and
1428 3des routines to generate a key of the correct parity. Update S/MIME
1429 code to use new functions and hence generate correct parity DES keys.
1430 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
1431 valid (weak or incorrect parity).
1434 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
1435 as looking them up. This is useful when the verified structure may contain
1436 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
1437 present unless the new PKCS7_NO_CRL flag is asserted.
1440 *) Extend ASN1 oid configuration module. It now additionally accepts the
1443 shortName = some long name, 1.2.3.4
1446 *) Reimplemented the BN_CTX implementation. There is now no more static
1447 limitation on the number of variables it can handle nor the depth of the
1448 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
1449 information can now expand as required, and rather than having a single
1450 static array of bignums, BN_CTX now uses a linked-list of such arrays
1451 allowing it to expand on demand whilst maintaining the usefulness of
1452 BN_CTX's "bundling".
1455 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
1456 to allow all RSA operations to function using a single BN_CTX.
1459 *) Preliminary support for certificate policy evaluation and checking. This
1460 is initially intended to pass the tests outlined in "Conformance Testing
1461 of Relying Party Client Certificate Path Processing Logic" v1.07.
1464 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
1465 remained unused and not that useful. A variety of other little bignum
1466 tweaks and fixes have also been made continuing on from the audit (see
1470 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
1471 associated ASN1, EVP and SSL functions and old ASN1 macros.
1474 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
1475 and this should never fail. So the return value from the use of
1476 BN_set_word() (which can fail due to needless expansion) is now deprecated;
1477 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
1480 *) BN_CTX_get() should return zero-valued bignums, providing the same
1481 initialised value as BN_new().
1482 [Geoff Thorpe, suggested by Ulf Möller]
1484 *) Support for inhibitAnyPolicy certificate extension.
1487 *) An audit of the BIGNUM code is underway, for which debugging code is
1488 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
1489 is considered valid when processing BIGNUMs, and causes execution to
1490 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
1491 further steps are taken to deliberately pollute unused data in BIGNUM
1492 structures to try and expose faulty code further on. For now, openssl will
1493 (in its default mode of operation) continue to tolerate the inconsistent
1494 forms that it has tolerated in the past, but authors and packagers should
1495 consider trying openssl and their own applications when compiled with
1496 these debugging symbols defined. It will help highlight potential bugs in
1497 their own code, and will improve the test coverage for OpenSSL itself. At
1498 some point, these tighter rules will become openssl's default to improve
1499 maintainability, though the assert()s and other overheads will remain only
1500 in debugging configurations. See bn.h for more details.
1501 [Geoff Thorpe, Nils Larsch, Ulf Möller]
1503 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
1504 that can only be obtained through BN_CTX_new() (which implicitly
1505 initialises it). The presence of this function only made it possible
1506 to overwrite an existing structure (and cause memory leaks).
1509 *) Because of the callback-based approach for implementing LHASH as a
1510 template type, lh_insert() adds opaque objects to hash-tables and
1511 lh_doall() or lh_doall_arg() are typically used with a destructor callback
1512 to clean up those corresponding objects before destroying the hash table
1513 (and losing the object pointers). So some over-zealous constifications in
1514 LHASH have been relaxed so that lh_insert() does not take (nor store) the
1515 objects as "const" and the lh_doall[_arg] callback wrappers are not
1516 prototyped to have "const" restrictions on the object pointers they are
1517 given (and so aren't required to cast them away any more).
1520 *) The tmdiff.h API was so ugly and minimal that our own timing utility
1521 (speed) prefers to use its own implementation. The two implementations
1522 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
1523 its object type properly exposed (MS_TM) instead of casting to/from "char
1524 *". This may still change yet if someone realises MS_TM and "ms_time_***"
1525 aren't necessarily the greatest nomenclatures - but this is what was used
1526 internally to the implementation so I've used that for now.
1529 *) Ensure that deprecated functions do not get compiled when
1530 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
1531 the self-tests were still using deprecated key-generation functions so
1532 these have been updated also.
1535 *) Reorganise PKCS#7 code to separate the digest location functionality
1536 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
1537 New function PKCS7_set_digest() to set the digest type for PKCS#7
1538 digestedData type. Add additional code to correctly generate the
1539 digestedData type and add support for this type in PKCS7 initialization
1543 *) New function PKCS7_set0_type_other() this initializes a PKCS7
1544 structure of type "other".
1547 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
1548 sure the loop does correctly stop and breaking ("division by zero")
1549 modulus operations are not performed. The (pre-generated) prime
1550 table crypto/bn/bn_prime.h was already correct, but it could not be
1551 re-generated on some platforms because of the "division by zero"
1552 situation in the script.
1553 [Ralf S. Engelschall]
1555 *) Update support for ECC-based TLS ciphersuites according to
1556 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
1557 SHA-1 now is only used for "small" curves (where the
1558 representation of a field element takes up to 24 bytes); for
1559 larger curves, the field element resulting from ECDH is directly
1560 used as premaster secret.
1561 [Douglas Stebila (Sun Microsystems Laboratories)]
1563 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
1564 curve secp160r1 to the tests.
1565 [Douglas Stebila (Sun Microsystems Laboratories)]
1567 *) Add the possibility to load symbols globally with DSO.
1568 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
1570 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
1571 control of the error stack.
1574 *) Add support for STORE in ENGINE.
1577 *) Add the STORE type. The intention is to provide a common interface
1578 to certificate and key stores, be they simple file-based stores, or
1579 HSM-type store, or LDAP stores, or...
1580 NOTE: The code is currently UNTESTED and isn't really used anywhere.
1583 *) Add a generic structure called OPENSSL_ITEM. This can be used to
1584 pass a list of arguments to any function as well as provide a way
1585 for a function to pass data back to the caller.
1588 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
1589 works like BUF_strdup() but can be used to duplicate a portion of
1590 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
1594 *) Add the function sk_find_ex() which works like sk_find(), but will
1595 return an index to an element even if an exact match couldn't be
1596 found. The index is guaranteed to point at the element where the
1597 searched-for key would be inserted to preserve sorting order.
1600 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
1601 takes an extra flags argument for optional functionality. Currently,
1602 the following flags are defined:
1604 OBJ_BSEARCH_VALUE_ON_NOMATCH
1605 This one gets OBJ_bsearch_ex() to return a pointer to the first
1606 element where the comparing function returns a negative or zero
1609 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
1610 This one gets OBJ_bsearch_ex() to return a pointer to the first
1611 element where the comparing function returns zero. This is useful
1612 if there are more than one element where the comparing function
1616 *) Make it possible to create self-signed certificates with 'openssl ca'
1617 in such a way that the self-signed certificate becomes part of the
1618 CA database and uses the same mechanisms for serial number generation
1619 as all other certificate signing. The new flag '-selfsign' enables
1620 this functionality. Adapt CA.sh and CA.pl.in.
1623 *) Add functionality to check the public key of a certificate request
1624 against a given private. This is useful to check that a certificate
1625 request can be signed by that key (self-signing).
1628 *) Make it possible to have multiple active certificates with the same
1629 subject in the CA index file. This is done only if the keyword
1630 'unique_subject' is set to 'no' in the main CA section (default
1631 if 'CA_default') of the configuration file. The value is saved
1632 with the database itself in a separate index attribute file,
1633 named like the index file with '.attr' appended to the name.
1636 *) Generate muti valued AVAs using '+' notation in config files for
1640 *) Support for nameConstraints certificate extension.
1643 *) Support for policyConstraints certificate extension.
1646 *) Support for policyMappings certificate extension.
1649 *) Make sure the default DSA_METHOD implementation only uses its
1650 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
1651 and change its own handlers to be NULL so as to remove unnecessary
1652 indirection. This lets alternative implementations fallback to the
1653 default implementation more easily.
1656 *) Support for directoryName in GeneralName related extensions
1660 *) Make it possible to link applications using Makefile.shared.
1661 Make that possible even when linking against static libraries!
1664 *) Support for single pass processing for S/MIME signing. This now
1665 means that S/MIME signing can be done from a pipe, in addition
1666 cleartext signing (multipart/signed type) is effectively streaming
1667 and the signed data does not need to be all held in memory.
1669 This is done with a new flag PKCS7_STREAM. When this flag is set
1670 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
1671 is done after the data is output (and digests calculated) in
1672 SMIME_write_PKCS7().
1675 *) Add full support for -rpath/-R, both in shared libraries and
1676 applications, at least on the platforms where it's known how
1680 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
1681 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
1682 will now compute a table of multiples of the generator that
1683 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
1684 faster (notably in the case of a single point multiplication,
1685 scalar * generator).
1686 [Nils Larsch, Bodo Moeller]
1688 *) IPv6 support for certificate extensions. The various extensions
1689 which use the IP:a.b.c.d can now take IPv6 addresses using the
1690 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
1694 *) Added an ENGINE that implements RSA by performing private key
1695 exponentiations with the GMP library. The conversions to and from
1696 GMP's mpz_t format aren't optimised nor are any montgomery forms
1697 cached, and on x86 it appears OpenSSL's own performance has caught up.
1698 However there are likely to be other architectures where GMP could
1699 provide a boost. This ENGINE is not built in by default, but it can be
1700 specified at Configure time and should be accompanied by the necessary
1701 linker additions, eg;
1702 ./config -DOPENSSL_USE_GMP -lgmp
1705 *) "openssl engine" will not display ENGINE/DSO load failure errors when
1706 testing availability of engines with "-t" - the old behaviour is
1707 produced by increasing the feature's verbosity with "-tt".
1710 *) ECDSA routines: under certain error conditions uninitialized BN objects
1711 could be freed. Solution: make sure initialization is performed early
1712 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
1716 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
1717 and DH_METHOD (eg. by ENGINE implementations) to override the normal
1718 software implementations. For DSA and DH, parameter generation can
1719 also be overriden by providing the appropriate method callbacks.
1722 *) Change the "progress" mechanism used in key-generation and
1723 primality testing to functions that take a new BN_GENCB pointer in
1724 place of callback/argument pairs. The new API functions have "_ex"
1725 postfixes and the older functions are reimplemented as wrappers for
1726 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
1727 declarations of the old functions to help (graceful) attempts to
1728 migrate to the new functions. Also, the new key-generation API
1729 functions operate on a caller-supplied key-structure and return
1730 success/failure rather than returning a key or NULL - this is to
1731 help make "keygen" another member function of RSA_METHOD etc.
1733 Example for using the new callback interface:
1735 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
1739 BN_GENCB_set(&my_cb, my_callback, my_arg);
1741 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
1742 /* For the meaning of a, b in calls to my_callback(), see the
1743 * documentation of the function that calls the callback.
1744 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
1745 * my_callback should return 1 if it wants BN_is_prime_ex()
1746 * to continue, or 0 to stop.
1751 *) Change the ZLIB compression method to be stateful, and make it
1752 available to TLS with the number defined in
1753 draft-ietf-tls-compression-04.txt.
1756 *) Add the ASN.1 structures and functions for CertificatePair, which
1757 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
1759 CertificatePair ::= SEQUENCE {
1760 forward [0] Certificate OPTIONAL,
1761 reverse [1] Certificate OPTIONAL,
1762 -- at least one of the pair shall be present -- }
1764 Also implement the PEM functions to read and write certificate
1765 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
1767 This needed to be defined, mostly for the sake of the LDAP
1768 attribute crossCertificatePair, but may prove useful elsewhere as
1772 *) Make it possible to inhibit symlinking of shared libraries in
1773 Makefile.shared, for Cygwin's sake.
1776 *) Extend the BIGNUM API by creating a function
1777 void BN_set_negative(BIGNUM *a, int neg);
1778 and a macro that behave like
1779 int BN_is_negative(const BIGNUM *a);
1781 to avoid the need to access 'a->neg' directly in applications.
1784 *) Implement fast modular reduction for pseudo-Mersenne primes
1785 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
1786 EC_GROUP_new_curve_GFp() will now automatically use this
1788 [Nils Larsch <nla@trustcenter.de>]
1790 *) Add new lock type (CRYPTO_LOCK_BN).
1793 *) Change the ENGINE framework to automatically load engines
1794 dynamically from specific directories unless they could be
1795 found to already be built in or loaded. Move all the
1796 current engines except for the cryptodev one to a new
1798 The engines in engines/ are built as shared libraries if
1799 the "shared" options was given to ./Configure or ./config.
1800 Otherwise, they are inserted in libcrypto.a.
1801 /usr/local/ssl/engines is the default directory for dynamic
1802 engines, but that can be overriden at configure time through
1803 the usual use of --prefix and/or --openssldir, and at run
1804 time with the environment variable OPENSSL_ENGINES.
1805 [Geoff Thorpe and Richard Levitte]
1807 *) Add Makefile.shared, a helper makefile to build shared
1808 libraries. Addapt Makefile.org.
1811 *) Add version info to Win32 DLLs.
1812 [Peter 'Luna' Runestig" <peter@runestig.com>]
1814 *) Add new 'medium level' PKCS#12 API. Certificates and keys
1815 can be added using this API to created arbitrary PKCS#12
1816 files while avoiding the low level API.
1818 New options to PKCS12_create(), key or cert can be NULL and
1819 will then be omitted from the output file. The encryption
1820 algorithm NIDs can be set to -1 for no encryption, the mac
1821 iteration count can be set to 0 to omit the mac.
1823 Enhance pkcs12 utility by making the -nokeys and -nocerts
1824 options work when creating a PKCS#12 file. New option -nomac
1825 to omit the mac, NONE can be set for an encryption algorithm.
1826 New code is modified to use the enhanced PKCS12_create()
1827 instead of the low level API.
1830 *) Extend ASN1 encoder to support indefinite length constructed
1831 encoding. This can output sequences tags and octet strings in
1832 this form. Modify pk7_asn1.c to support indefinite length
1833 encoding. This is experimental and needs additional code to
1834 be useful, such as an ASN1 bio and some enhanced streaming
1837 Extend template encode functionality so that tagging is passed
1838 down to the template encoder.
1841 *) Let 'openssl req' fail if an argument to '-newkey' is not
1842 recognized instead of using RSA as a default.
1845 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
1846 As these are not official, they are not included in "ALL";
1847 the "ECCdraft" ciphersuite group alias can be used to select them.
1848 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
1850 *) Add ECDH engine support.
1851 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
1853 *) Add ECDH in new directory crypto/ecdh/.
1854 [Douglas Stebila (Sun Microsystems Laboratories)]
1856 *) Let BN_rand_range() abort with an error after 100 iterations
1857 without success (which indicates a broken PRNG).
1860 *) Change BN_mod_sqrt() so that it verifies that the input value
1861 is really the square of the return value. (Previously,
1862 BN_mod_sqrt would show GIGO behaviour.)
1865 *) Add named elliptic curves over binary fields from X9.62, SECG,
1866 and WAP/WTLS; add OIDs that were still missing.
1868 [Sheueling Chang Shantz and Douglas Stebila
1869 (Sun Microsystems Laboratories)]
1871 *) Extend the EC library for elliptic curves over binary fields
1872 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
1875 EC_GF2m_simple_method
1879 EC_GROUP_new_curve_GF2m
1880 EC_GROUP_set_curve_GF2m
1881 EC_GROUP_get_curve_GF2m
1882 EC_POINT_set_affine_coordinates_GF2m
1883 EC_POINT_get_affine_coordinates_GF2m
1884 EC_POINT_set_compressed_coordinates_GF2m
1886 Point compression for binary fields is disabled by default for
1887 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
1890 As binary polynomials are represented as BIGNUMs, various members
1891 of the EC_GROUP and EC_POINT data structures can be shared
1892 between the implementations for prime fields and binary fields;
1893 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
1894 are essentially identical to their ..._GFp counterparts.
1895 (For simplicity, the '..._GFp' prefix has been dropped from
1896 various internal method names.)
1898 An internal 'field_div' method (similar to 'field_mul' and
1899 'field_sqr') has been added; this is used only for binary fields.
1901 [Sheueling Chang Shantz and Douglas Stebila
1902 (Sun Microsystems Laboratories)]
1904 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
1905 through methods ('mul', 'precompute_mult').
1907 The generic implementations (now internally called 'ec_wNAF_mul'
1908 and 'ec_wNAF_precomputed_mult') remain the default if these
1909 methods are undefined.
1911 [Sheueling Chang Shantz and Douglas Stebila
1912 (Sun Microsystems Laboratories)]
1914 *) New function EC_GROUP_get_degree, which is defined through
1915 EC_METHOD. For curves over prime fields, this returns the bit
1916 length of the modulus.
1918 [Sheueling Chang Shantz and Douglas Stebila
1919 (Sun Microsystems Laboratories)]
1921 *) New functions EC_GROUP_dup, EC_POINT_dup.
1922 (These simply call ..._new and ..._copy).
1924 [Sheueling Chang Shantz and Douglas Stebila
1925 (Sun Microsystems Laboratories)]
1927 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
1928 Polynomials are represented as BIGNUMs (where the sign bit is not
1929 used) in the following functions [macros]:
1932 BN_GF2m_sub [= BN_GF2m_add]
1933 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
1934 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
1935 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
1937 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
1938 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
1939 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
1940 BN_GF2m_cmp [= BN_ucmp]
1942 (Note that only the 'mod' functions are actually for fields GF(2^m).
1943 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
1945 For some functions, an the irreducible polynomial defining a
1946 field can be given as an 'unsigned int[]' with strictly
1947 decreasing elements giving the indices of those bits that are set;
1948 i.e., p[] represents the polynomial
1949 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
1951 p[0] > p[1] > ... > p[k] = 0.
1952 This applies to the following functions:
1957 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
1958 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
1960 BN_GF2m_mod_sqrt_arr
1961 BN_GF2m_mod_solve_quad_arr
1965 Conversion can be performed by the following functions:
1970 bntest.c has additional tests for binary polynomial arithmetic.
1972 Two implementations for BN_GF2m_mod_div() are available.
1973 The default algorithm simply uses BN_GF2m_mod_inv() and
1974 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
1975 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
1976 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
1978 [Sheueling Chang Shantz and Douglas Stebila
1979 (Sun Microsystems Laboratories)]
1981 *) Add new error code 'ERR_R_DISABLED' that can be used when some
1982 functionality is disabled at compile-time.
1983 [Douglas Stebila <douglas.stebila@sun.com>]
1985 *) Change default behaviour of 'openssl asn1parse' so that more
1986 information is visible when viewing, e.g., a certificate:
1988 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
1989 mode the content of non-printable OCTET STRINGs is output in a
1990 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
1991 avoid the appearance of a printable string.
1992 [Nils Larsch <nla@trustcenter.de>]
1994 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
1996 EC_GROUP_set_asn1_flag()
1997 EC_GROUP_get_asn1_flag()
1998 EC_GROUP_set_point_conversion_form()
1999 EC_GROUP_get_point_conversion_form()
2000 These control ASN1 encoding details:
2001 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
2002 has been set to OPENSSL_EC_NAMED_CURVE.
2003 - Points are encoded in uncompressed form by default; options for
2004 asn1_for are as for point2oct, namely
2005 POINT_CONVERSION_COMPRESSED
2006 POINT_CONVERSION_UNCOMPRESSED
2007 POINT_CONVERSION_HYBRID
2009 Also add 'seed' and 'seed_len' members to EC_GROUP with access
2012 EC_GROUP_get0_seed()
2013 EC_GROUP_get_seed_len()
2014 This is used only for ASN1 purposes (so far).
2015 [Nils Larsch <nla@trustcenter.de>]
2017 *) Add 'field_type' member to EC_METHOD, which holds the NID
2018 of the appropriate field type OID. The new function
2019 EC_METHOD_get_field_type() returns this value.
2020 [Nils Larsch <nla@trustcenter.de>]
2025 EC_POINT_point2hex()
2026 EC_POINT_hex2point()
2027 providing useful interfaces to EC_POINT_point2oct() and
2028 EC_POINT_oct2point().
2029 [Nils Larsch <nla@trustcenter.de>]
2031 *) Change internals of the EC library so that the functions
2032 EC_GROUP_set_generator()
2033 EC_GROUP_get_generator()
2034 EC_GROUP_get_order()
2035 EC_GROUP_get_cofactor()
2036 are implemented directly in crypto/ec/ec_lib.c and not dispatched
2037 to methods, which would lead to unnecessary code duplication when
2038 adding different types of curves.
2039 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
2041 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
2042 arithmetic, and such that modified wNAFs are generated
2043 (which avoid length expansion in many cases).
2046 *) Add a function EC_GROUP_check_discriminant() (defined via
2047 EC_METHOD) that verifies that the curve discriminant is non-zero.
2049 Add a function EC_GROUP_check() that makes some sanity tests
2050 on a EC_GROUP, its generator and order. This includes
2051 EC_GROUP_check_discriminant().
2052 [Nils Larsch <nla@trustcenter.de>]
2054 *) Add ECDSA in new directory crypto/ecdsa/.
2056 Add applications 'openssl ecparam' and 'openssl ecdsa'
2057 (these are based on 'openssl dsaparam' and 'openssl dsa').
2059 ECDSA support is also included in various other files across the
2060 library. Most notably,
2061 - 'openssl req' now has a '-newkey ecdsa:file' option;
2062 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
2063 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
2064 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
2065 them suitable for ECDSA where domain parameters must be
2066 extracted before the specific public key;
2067 - ECDSA engine support has been added.
2068 [Nils Larsch <nla@trustcenter.de>]
2070 *) Include some named elliptic curves, and add OIDs from X9.62,
2071 SECG, and WAP/WTLS. Each curve can be obtained from the new
2073 EC_GROUP_new_by_curve_name(),
2074 and the list of available named curves can be obtained with
2075 EC_get_builtin_curves().
2076 Also add a 'curve_name' member to EC_GROUP objects, which can be
2078 EC_GROUP_set_curve_name()
2079 EC_GROUP_get_curve_name()
2080 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
2082 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
2083 was actually never needed) and in BN_mul(). The removal in BN_mul()
2084 required a small change in bn_mul_part_recursive() and the addition
2085 of the functions bn_cmp_part_words(), bn_sub_part_words() and
2086 bn_add_part_words(), which do the same thing as bn_cmp_words(),
2087 bn_sub_words() and bn_add_words() except they take arrays with
2091 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
2093 *) Cleanse PEM buffers before freeing them since they may contain
2095 [Benjamin Bennett <ben@psc.edu>]
2097 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2098 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2099 authentication-only ciphersuites.
2102 *) Since AES128 and AES256 share a single mask bit in the logic of
2103 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2104 kludge to work properly if AES128 is available and AES256 isn't.
2107 *) Expand security boundary to match 1.1.1 module.
2110 *) Remove redundant features: hash file source, editing of test vectors
2111 modify fipsld to use external fips_premain.c signature.
2114 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
2115 run algorithm test programs.
2118 *) Make algorithm test programs more tolerant of whitespace.
2121 *) Have SSL/TLS server implementation tolerate "mismatched" record
2122 protocol version while receiving ClientHello even if the
2123 ClientHello is fragmented. (The server can't insist on the
2124 particular protocol version it has chosen before the ServerHello
2125 message has informed the client about his choice.)
2128 *) Load error codes if they are not already present instead of using a
2129 static variable. This allows them to be cleanly unloaded and reloaded.
2132 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
2134 *) Introduce limits to prevent malicious keys being able to
2135 cause a denial of service. (CVE-2006-2940)
2136 [Steve Henson, Bodo Moeller]
2138 *) Fix ASN.1 parsing of certain invalid structures that can result
2139 in a denial of service. (CVE-2006-2937) [Steve Henson]
2141 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2142 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2144 *) Fix SSL client code which could crash if connecting to a
2145 malicious SSLv2 server. (CVE-2006-4343)
2146 [Tavis Ormandy and Will Drewry, Google Security Team]
2148 *) Change ciphersuite string processing so that an explicit
2149 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
2150 will no longer include "AES128-SHA"), and any other similar
2151 ciphersuite (same bitmap) from *other* protocol versions (so that
2152 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
2153 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
2154 changes from 0.9.8b and 0.9.8d.
2157 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
2159 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2160 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2162 *) Change the Unix randomness entropy gathering to use poll() when
2163 possible instead of select(), since the latter has some
2164 undesirable limitations.
2165 [Darryl Miles via Richard Levitte and Bodo Moeller]
2167 *) Disable rogue ciphersuites:
2169 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2170 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2171 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2173 The latter two were purportedly from
2174 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2177 Also deactive the remaining ciphersuites from
2178 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2179 unofficial, and the ID has long expired.
2182 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2183 dual-core machines) and other potential thread-safety issues.
2186 Changes between 0.9.7i and 0.9.7j [04 May 2006]
2188 *) Adapt fipsld and the build system to link against the validated FIPS
2189 module in FIPS mode.
2192 *) Fixes for VC++ 2005 build under Windows.
2195 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
2196 from a Windows bash shell such as MSYS. It is autodetected from the
2197 "config" script when run from a VC++ environment. Modify standard VC++
2198 build to use fipscanister.o from the GNU make build.
2201 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
2203 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
2204 The value now differs depending on if you build for FIPS or not.
2205 BEWARE! A program linked with a shared FIPSed libcrypto can't be
2206 safely run with a non-FIPSed libcrypto, as it may crash because of
2207 the difference induced by this change.
2210 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
2212 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2213 (part of SSL_OP_ALL). This option used to disable the
2214 countermeasure against man-in-the-middle protocol-version
2215 rollback in the SSL 2.0 server implementation, which is a bad
2216 idea. (CVE-2005-2969)
2218 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2219 for Information Security, National Institute of Advanced Industrial
2220 Science and Technology [AIST], Japan)]
2222 *) Minimal support for X9.31 signatures and PSS padding modes. This is
2223 mainly for FIPS compliance and not fully integrated at this stage.
2226 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
2227 the exponentiation using a fixed-length exponent. (Otherwise,
2228 the information leaked through timing could expose the secret key
2229 after many signatures; cf. Bleichenbacher's attack on DSA with
2233 *) Make a new fixed-window mod_exp implementation the default for
2234 RSA, DSA, and DH private-key operations so that the sequence of
2235 squares and multiplies and the memory access pattern are
2236 independent of the particular secret key. This will mitigate
2237 cache-timing and potential related attacks.
2239 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
2240 and this is automatically used by BN_mod_exp_mont() if the new flag
2241 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
2242 will use this BN flag for private exponents unless the flag
2243 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
2244 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
2246 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
2248 *) Change the client implementation for SSLv23_method() and
2249 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
2250 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
2251 (Previously, the SSL 2.0 backwards compatible Client Hello
2252 message format would be used even with SSL_OP_NO_SSLv2.)
2255 *) Add support for smime-type MIME parameter in S/MIME messages which some
2259 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
2260 a threadsafe manner. Modify rsa code to use new function and add calls
2261 to dsa and dh code (which had race conditions before).
2264 *) Include the fixed error library code in the C error file definitions
2265 instead of fixing them up at runtime. This keeps the error code
2266 structures constant.
2269 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
2271 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
2274 *) Fixes for newer kerberos headers. NB: the casts are needed because
2275 the 'length' field is signed on one version and unsigned on another
2276 with no (?) obvious way to tell the difference, without these VC++
2277 complains. Also the "definition" of FAR (blank) is no longer included
2278 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
2279 some needed definitions.
2282 *) Undo Cygwin change.
2285 *) Added support for proxy certificates according to RFC 3820.
2286 Because they may be a security thread to unaware applications,
2287 they must be explicitely allowed in run-time. See
2288 docs/HOWTO/proxy_certificates.txt for further information.
2291 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
2293 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
2294 server and client random values. Previously
2295 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
2296 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
2298 This change has negligible security impact because:
2300 1. Server and client random values still have 24 bytes of pseudo random
2303 2. Server and client random values are sent in the clear in the initial
2306 3. The master secret is derived using the premaster secret (48 bytes in
2307 size for static RSA ciphersuites) as well as client server and random
2310 The OpenSSL team would like to thank the UK NISCC for bringing this issue
2313 [Stephen Henson, reported by UK NISCC]
2315 *) Use Windows randomness collection on Cygwin.
2318 *) Fix hang in EGD/PRNGD query when communication socket is closed
2319 prematurely by EGD/PRNGD.
2320 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
2322 *) Prompt for pass phrases when appropriate for PKCS12 input format.
2325 *) Back-port of selected performance improvements from development
2326 branch, as well as improved support for PowerPC platforms.
2329 *) Add lots of checks for memory allocation failure, error codes to indicate
2330 failure and freeing up memory if a failure occurs.
2331 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
2333 *) Add new -passin argument to dgst.
2336 *) Perform some character comparisons of different types in X509_NAME_cmp:
2337 this is needed for some certificates that reencode DNs into UTF8Strings
2338 (in violation of RFC3280) and can't or wont issue name rollover
2342 *) Make an explicit check during certificate validation to see that
2343 the CA setting in each certificate on the chain is correct. As a
2344 side effect always do the following basic checks on extensions,
2345 not just when there's an associated purpose to the check:
2347 - if there is an unhandled critical extension (unless the user
2348 has chosen to ignore this fault)
2349 - if the path length has been exceeded (if one is set at all)
2350 - that certain extensions fit the associated purpose (if one has
2354 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
2356 *) Avoid a race condition when CRLs are checked in a multi threaded
2357 environment. This would happen due to the reordering of the revoked
2358 entries during signature checking and serial number lookup. Now the
2359 encoding is cached and the serial number sort performed under a lock.
2360 Add new STACK function sk_is_sorted().
2363 *) Add Delta CRL to the extension code.
2366 *) Various fixes to s3_pkt.c so alerts are sent properly.
2367 [David Holmes <d.holmes@f5.com>]
2369 *) Reduce the chances of duplicate issuer name and serial numbers (in
2370 violation of RFC3280) using the OpenSSL certificate creation utilities.
2371 This is done by creating a random 64 bit value for the initial serial
2372 number when a serial number file is created or when a self signed
2373 certificate is created using 'openssl req -x509'. The initial serial
2374 number file is created using 'openssl x509 -next_serial' in CA.pl
2375 rather than being initialized to 1.
2378 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
2380 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
2381 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
2382 [Joe Orton, Steve Henson]
2384 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
2386 [Joe Orton, Steve Henson]
2388 *) Make it possible to have multiple active certificates with the same
2389 subject in the CA index file. This is done only if the keyword
2390 'unique_subject' is set to 'no' in the main CA section (default
2391 if 'CA_default') of the configuration file. The value is saved
2392 with the database itself in a separate index attribute file,
2393 named like the index file with '.attr' appended to the name.
2396 *) X509 verify fixes. Disable broken certificate workarounds when
2397 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
2398 keyUsage extension present. Don't accept CRLs with unhandled critical
2399 extensions: since verify currently doesn't process CRL extensions this
2400 rejects a CRL with *any* critical extensions. Add new verify error codes
2404 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
2405 A clarification of RFC2560 will require the use of OCTET STRINGs and
2406 some implementations cannot handle the current raw format. Since OpenSSL
2407 copies and compares OCSP nonces as opaque blobs without any attempt at
2408 parsing them this should not create any compatibility issues.
2411 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
2412 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
2413 this HMAC (and other) operations are several times slower than OpenSSL
2417 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
2418 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2420 *) Use the correct content when signing type "other".
2423 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
2425 *) Fix various bugs revealed by running the NISCC test suite:
2427 Stop out of bounds reads in the ASN1 code when presented with
2428 invalid tags (CVE-2003-0543 and CVE-2003-0544).
2430 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
2432 If verify callback ignores invalid public key errors don't try to check
2433 certificate signature with the NULL public key.
2437 *) New -ignore_err option in ocsp application to stop the server
2438 exiting on the first error in a request.
2441 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
2442 if the server requested one: as stated in TLS 1.0 and SSL 3.0
2446 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
2447 extra data after the compression methods not only for TLS 1.0
2448 but also for SSL 3.0 (as required by the specification).
2449 [Bodo Moeller; problem pointed out by Matthias Loepfe]
2451 *) Change X509_certificate_type() to mark the key as exported/exportable
2452 when it's 512 *bits* long, not 512 bytes.
2455 *) Change AES_cbc_encrypt() so it outputs exact multiple of
2456 blocks during encryption.
2459 *) Various fixes to base64 BIO and non blocking I/O. On write
2460 flushes were not handled properly if the BIO retried. On read
2461 data was not being buffered properly and had various logic bugs.
2462 This also affects blocking I/O when the data being decoded is a
2466 *) Various S/MIME bugfixes and compatibility changes:
2467 output correct application/pkcs7 MIME type if
2468 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
2469 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
2470 of files as .eml work). Correctly handle very long lines in MIME
2474 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
2476 *) Countermeasure against the Klima-Pokorny-Rosa extension of
2477 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
2478 a protocol version number mismatch like a decryption error
2479 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
2482 *) Turn on RSA blinding by default in the default implementation
2483 to avoid a timing attack. Applications that don't want it can call
2484 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
2485 They would be ill-advised to do so in most cases.
2486 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
2488 *) Change RSA blinding code so that it works when the PRNG is not
2489 seeded (in this case, the secret RSA exponent is abused as
2490 an unpredictable seed -- if it is not unpredictable, there
2491 is no point in blinding anyway). Make RSA blinding thread-safe
2492 by remembering the creator's thread ID in rsa->blinding and
2493 having all other threads use local one-time blinding factors
2494 (this requires more computation than sharing rsa->blinding, but
2495 avoids excessive locking; and if an RSA object is not shared
2496 between threads, blinding will still be very fast).
2499 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
2500 ENGINE as defaults for all supported algorithms irrespective of
2501 the 'flags' parameter. 'flags' is now honoured, so applications
2502 should make sure they are passing it correctly.
2505 *) Target "mingw" now allows native Windows code to be generated in
2506 the Cygwin environment as well as with the MinGW compiler.
2509 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
2511 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
2512 via timing by performing a MAC computation even if incorrrect
2513 block cipher padding has been found. This is a countermeasure
2514 against active attacks where the attacker has to distinguish
2515 between bad padding and a MAC verification error. (CVE-2003-0078)
2517 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
2518 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
2519 Martin Vuagnoux (EPFL, Ilion)]
2521 *) Make the no-err option work as intended. The intention with no-err
2522 is not to have the whole error stack handling routines removed from
2523 libcrypto, it's only intended to remove all the function name and
2524 reason texts, thereby removing some of the footprint that may not
2525 be interesting if those errors aren't displayed anyway.
2527 NOTE: it's still possible for any application or module to have it's
2528 own set of error texts inserted. The routines are there, just not
2529 used by default when no-err is given.
2532 *) Add support for FreeBSD on IA64.
2533 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
2535 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
2536 Kerberos function mit_des_cbc_cksum(). Before this change,
2537 the value returned by DES_cbc_cksum() was like the one from
2538 mit_des_cbc_cksum(), except the bytes were swapped.
2539 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
2541 *) Allow an application to disable the automatic SSL chain building.
2542 Before this a rather primitive chain build was always performed in
2543 ssl3_output_cert_chain(): an application had no way to send the
2544 correct chain if the automatic operation produced an incorrect result.
2546 Now the chain builder is disabled if either:
2548 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
2550 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
2552 The reasoning behind this is that an application would not want the
2553 auto chain building to take place if extra chain certificates are
2554 present and it might also want a means of sending no additional
2555 certificates (for example the chain has two certificates and the
2559 *) Add the possibility to build without the ENGINE framework.
2560 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2562 *) Under Win32 gmtime() can return NULL: check return value in
2563 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
2566 *) DSA routines: under certain error conditions uninitialized BN objects
2567 could be freed. Solution: make sure initialization is performed early
2568 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
2569 Nils Larsch <nla@trustcenter.de> via PR#459)
2572 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
2573 checked on reconnect on the client side, therefore session resumption
2574 could still fail with a "ssl session id is different" error. This
2575 behaviour is masked when SSL_OP_ALL is used due to
2576 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
2577 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2578 followup to PR #377.
2581 *) IA-32 assembler support enhancements: unified ELF targets, support
2582 for SCO/Caldera platforms, fix for Cygwin shared build.
2585 *) Add support for FreeBSD on sparc64. As a consequence, support for
2586 FreeBSD on non-x86 processors is separate from x86 processors on
2587 the config script, much like the NetBSD support.
2588 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
2590 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
2592 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
2595 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
2596 code (06) was taken as the first octet of the session ID and the last
2597 octet was ignored consequently. As a result SSLv2 client side session
2598 caching could not have worked due to the session ID mismatch between
2600 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2604 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
2605 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
2609 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
2610 seems that in spite of existing for more than a year, many application
2611 author have done nothing to provide the necessary callbacks, which
2612 means that this particular engine will not work properly anywhere.
2613 This is a very unfortunate situation which forces us, in the name
2614 of usability, to give the hw_ncipher.c a static lock, which is part
2616 NOTE: This is for the 0.9.7 series ONLY. This hack will never
2617 appear in 0.9.8 or later. We EXPECT application authors to have
2618 dealt properly with this when 0.9.8 is released (unless we actually
2619 make such changes in the libcrypto locking code that changes will
2620 have to be made anyway).
2623 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
2624 octets have been read, EOF or an error occurs. Without this change
2625 some truncated ASN1 structures will not produce an error.
2628 *) Disable Heimdal support, since it hasn't been fully implemented.
2629 Still give the possibility to force the use of Heimdal, but with
2630 warnings and a request that patches get sent to openssl-dev.
2633 *) Add the VC-CE target, introduce the WINCE sysname, and add
2634 INSTALL.WCE and appropriate conditionals to make it build.
2635 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2637 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
2638 cygssl-x.y.z.dll, where x, y and z are the major, minor and
2639 edit numbers of the version.
2640 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
2642 *) Introduce safe string copy and catenation functions
2643 (BUF_strlcpy() and BUF_strlcat()).
2644 [Ben Laurie (CHATS) and Richard Levitte]
2646 *) Avoid using fixed-size buffers for one-line DNs.
2647 [Ben Laurie (CHATS)]
2649 *) Add BUF_MEM_grow_clean() to avoid information leakage when
2650 resizing buffers containing secrets, and use where appropriate.
2651 [Ben Laurie (CHATS)]
2653 *) Avoid using fixed size buffers for configuration file location.
2654 [Ben Laurie (CHATS)]
2656 *) Avoid filename truncation for various CA files.
2657 [Ben Laurie (CHATS)]
2659 *) Use sizeof in preference to magic numbers.
2660 [Ben Laurie (CHATS)]
2662 *) Avoid filename truncation in cert requests.
2663 [Ben Laurie (CHATS)]
2665 *) Add assertions to check for (supposedly impossible) buffer
2667 [Ben Laurie (CHATS)]
2669 *) Don't cache truncated DNS entries in the local cache (this could
2670 potentially lead to a spoofing attack).
2671 [Ben Laurie (CHATS)]
2673 *) Fix various buffers to be large enough for hex/decimal
2674 representations in a platform independent manner.
2675 [Ben Laurie (CHATS)]
2677 *) Add CRYPTO_realloc_clean() to avoid information leakage when
2678 resizing buffers containing secrets, and use where appropriate.
2679 [Ben Laurie (CHATS)]
2681 *) Add BIO_indent() to avoid much slightly worrying code to do
2683 [Ben Laurie (CHATS)]
2685 *) Convert sprintf()/BIO_puts() to BIO_printf().
2686 [Ben Laurie (CHATS)]
2688 *) buffer_gets() could terminate with the buffer only half
2690 [Ben Laurie (CHATS)]
2692 *) Add assertions to prevent user-supplied crypto functions from
2693 overflowing internal buffers by having large block sizes, etc.
2694 [Ben Laurie (CHATS)]
2696 *) New OPENSSL_assert() macro (similar to assert(), but enabled
2698 [Ben Laurie (CHATS)]
2700 *) Eliminate unused copy of key in RC4.
2701 [Ben Laurie (CHATS)]
2703 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
2704 [Ben Laurie (CHATS)]
2706 *) Fix off-by-one error in EGD path.
2707 [Ben Laurie (CHATS)]
2709 *) If RANDFILE path is too long, ignore instead of truncating.
2710 [Ben Laurie (CHATS)]
2712 *) Eliminate unused and incorrectly sized X.509 structure
2714 [Ben Laurie (CHATS)]
2716 *) Eliminate unused and dangerous function knumber().
2717 [Ben Laurie (CHATS)]
2719 *) Eliminate unused and dangerous structure, KSSL_ERR.
2720 [Ben Laurie (CHATS)]
2722 *) Protect against overlong session ID context length in an encoded
2723 session object. Since these are local, this does not appear to be
2725 [Ben Laurie (CHATS)]
2727 *) Change from security patch (see 0.9.6e below) that did not affect
2728 the 0.9.6 release series:
2730 Remote buffer overflow in SSL3 protocol - an attacker could
2731 supply an oversized master key in Kerberos-enabled versions.
2733 [Ben Laurie (CHATS)]
2735 *) Change the SSL kerb5 codes to match RFC 2712.
2738 *) Make -nameopt work fully for req and add -reqopt switch.
2739 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
2741 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
2742 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
2744 *) Make sure tests can be performed even if the corresponding algorithms
2745 have been removed entirely. This was also the last step to make
2746 OpenSSL compilable with DJGPP under all reasonable conditions.
2747 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
2749 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
2750 to allow version independent disabling of normally unselected ciphers,
2751 which may be activated as a side-effect of selecting a single cipher.
2753 (E.g., cipher list string "RSA" enables ciphersuites that are left
2754 out of "ALL" because they do not provide symmetric encryption.
2755 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
2756 [Lutz Jaenicke, Bodo Moeller]
2758 *) Add appropriate support for separate platform-dependent build
2759 directories. The recommended way to make a platform-dependent
2760 build directory is the following (tested on Linux), maybe with
2763 # Place yourself outside of the OpenSSL source tree. In
2764 # this example, the environment variable OPENSSL_SOURCE
2765 # is assumed to contain the absolute OpenSSL source directory.
2766 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
2767 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
2768 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
2769 mkdir -p `dirname $F`
2770 ln -s $OPENSSL_SOURCE/$F $F
2773 To be absolutely sure not to disturb the source tree, a "make clean"
2774 is a good thing. If it isn't successfull, don't worry about it,
2775 it probably means the source directory is very clean.
2778 *) Make sure any ENGINE control commands make local copies of string
2779 pointers passed to them whenever necessary. Otherwise it is possible
2780 the caller may have overwritten (or deallocated) the original string
2781 data when a later ENGINE operation tries to use the stored values.
2782 [Götz Babin-Ebell <babinebell@trustcenter.de>]
2784 *) Improve diagnostics in file reading and command-line digests.
2785 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
2787 *) Add AES modes CFB and OFB to the object database. Correct an
2788 error in AES-CFB decryption.
2791 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
2792 allows existing EVP_CIPHER_CTX structures to be reused after
2793 calling EVP_*Final(). This behaviour is used by encryption
2794 BIOs and some applications. This has the side effect that
2795 applications must explicitly clean up cipher contexts with
2796 EVP_CIPHER_CTX_cleanup() or they will leak memory.
2799 *) Check the values of dna and dnb in bn_mul_recursive before calling
2800 bn_mul_comba (a non zero value means the a or b arrays do not contain
2801 n2 elements) and fallback to bn_mul_normal if either is not zero.
2804 *) Fix escaping of non-ASCII characters when using the -subj option
2805 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
2808 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
2809 form for "surname", serialNumber has no short form.
2810 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
2811 therefore remove "mail" short name for "internet 7".
2812 The OID for unique identifiers in X509 certificates is
2813 x500UniqueIdentifier, not uniqueIdentifier.
2814 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
2817 *) Add an "init" command to the ENGINE config module and auto initialize
2818 ENGINEs. Without any "init" command the ENGINE will be initialized
2819 after all ctrl commands have been executed on it. If init=1 the
2820 ENGINE is initailized at that point (ctrls before that point are run
2821 on the uninitialized ENGINE and after on the initialized one). If
2822 init=0 then the ENGINE will not be iniatialized at all.
2825 *) Fix the 'app_verify_callback' interface so that the user-defined
2826 argument is actually passed to the callback: In the
2827 SSL_CTX_set_cert_verify_callback() prototype, the callback
2828 declaration has been changed from
2831 int (*cb)(X509_STORE_CTX *,void *);
2832 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
2833 i=s->ctx->app_verify_callback(&ctx)
2834 has been changed into
2835 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
2837 To update applications using SSL_CTX_set_cert_verify_callback(),
2838 a dummy argument can be added to their callback functions.
2839 [D. K. Smetters <smetters@parc.xerox.com>]
2841 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
2842 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
2844 *) Add and OPENSSL_LOAD_CONF define which will cause
2845 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
2846 This allows older applications to transparently support certain
2847 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
2848 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
2849 load the config file and OPENSSL_add_all_algorithms_conf() which will
2850 always load it have also been added.
2853 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
2854 Adjust NIDs and EVP layer.
2855 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2857 *) Config modules support in openssl utility.
2859 Most commands now load modules from the config file,
2860 though in a few (such as version) this isn't done
2861 because it couldn't be used for anything.
2863 In the case of ca and req the config file used is
2864 the same as the utility itself: that is the -config
2865 command line option can be used to specify an
2869 *) Move default behaviour from OPENSSL_config(). If appname is NULL
2870 use "openssl_conf" if filename is NULL use default openssl config file.
2873 *) Add an argument to OPENSSL_config() to allow the use of an alternative
2874 config section name. Add a new flag to tolerate a missing config file
2875 and move code to CONF_modules_load_file().
2878 *) Support for crypto accelerator cards from Accelerated Encryption
2879 Processing, www.aep.ie. (Use engine 'aep')
2880 The support was copied from 0.9.6c [engine] and adapted/corrected
2881 to work with the new engine framework.
2882 [AEP Inc. and Richard Levitte]
2884 *) Support for SureWare crypto accelerator cards from Baltimore
2885 Technologies. (Use engine 'sureware')
2886 The support was copied from 0.9.6c [engine] and adapted
2887 to work with the new engine framework.
2890 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
2891 make the newer ENGINE framework commands for the CHIL engine work.
2892 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
2894 *) Make it possible to produce shared libraries on ReliantUNIX.
2895 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
2897 *) Add the configuration target debug-linux-ppro.
2898 Make 'openssl rsa' use the general key loading routines
2899 implemented in apps.c, and make those routines able to
2900 handle the key format FORMAT_NETSCAPE and the variant
2902 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2904 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
2905 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2907 *) Add -keyform to rsautl, and document -engine.
2908 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
2910 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
2911 BIO_R_NO_SUCH_FILE error code rather than the generic
2912 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
2915 *) Add new functions
2917 ERR_peek_last_error_line
2918 ERR_peek_last_error_line_data.
2919 These are similar to
2922 ERR_peek_error_line_data,
2923 but report on the latest error recorded rather than the first one
2924 still in the error queue.
2925 [Ben Laurie, Bodo Moeller]
2927 *) default_algorithms option in ENGINE config module. This allows things
2929 default_algorithms = ALL
2930 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
2933 *) Prelminary ENGINE config module.
2936 *) New experimental application configuration code.
2939 *) Change the AES code to follow the same name structure as all other
2940 symmetric ciphers, and behave the same way. Move everything to
2941 the directory crypto/aes, thereby obsoleting crypto/rijndael.
2942 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2944 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
2945 [Ben Laurie and Theo de Raadt]
2947 *) Add option to output public keys in req command.
2948 [Massimiliano Pala madwolf@openca.org]
2950 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
2951 (up to about 10% better than before for P-192 and P-224).
2954 *) New functions/macros
2956 SSL_CTX_set_msg_callback(ctx, cb)
2957 SSL_CTX_set_msg_callback_arg(ctx, arg)
2958 SSL_set_msg_callback(ssl, cb)
2959 SSL_set_msg_callback_arg(ssl, arg)
2961 to request calling a callback function
2963 void cb(int write_p, int version, int content_type,
2964 const void *buf, size_t len, SSL *ssl, void *arg)
2966 whenever a protocol message has been completely received
2967 (write_p == 0) or sent (write_p == 1). Here 'version' is the
2968 protocol version according to which the SSL library interprets
2969 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
2970 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
2971 the content type as defined in the SSL 3.0/TLS 1.0 protocol
2972 specification (change_cipher_spec(20), alert(21), handshake(22)).
2973 'buf' and 'len' point to the actual message, 'ssl' to the
2974 SSL object, and 'arg' is the application-defined value set by
2975 SSL[_CTX]_set_msg_callback_arg().
2977 'openssl s_client' and 'openssl s_server' have new '-msg' options
2978 to enable a callback that displays all protocol messages.
2981 *) Change the shared library support so shared libraries are built as
2982 soon as the corresponding static library is finished, and thereby get
2983 openssl and the test programs linked against the shared library.
2984 This still only happens when the keyword "shard" has been given to
2985 the configuration scripts.
2987 NOTE: shared library support is still an experimental thing, and
2988 backward binary compatibility is still not guaranteed.
2989 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
2991 *) Add support for Subject Information Access extension.
2992 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2994 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
2995 additional bytes when new memory had to be allocated, not just
2996 when reusing an existing buffer.
2999 *) New command line and configuration option 'utf8' for the req command.
3000 This allows field values to be specified as UTF8 strings.
3003 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
3004 runs for the former and machine-readable output for the latter.
3007 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
3008 of the e-mail address in the DN (i.e., it will go into a certificate
3009 extension only). The new configuration file option 'email_in_dn = no'
3010 has the same effect.
3011 [Massimiliano Pala madwolf@openca.org]
3013 *) Change all functions with names starting with des_ to be starting
3014 with DES_ instead. Add wrappers that are compatible with libdes,
3015 but are named _ossl_old_des_*. Finally, add macros that map the
3016 des_* symbols to the corresponding _ossl_old_des_* if libdes
3017 compatibility is desired. If OpenSSL 0.9.6c compatibility is
3018 desired, the des_* symbols will be mapped to DES_*, with one
3021 Since we provide two compatibility mappings, the user needs to
3022 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
3023 compatibility is desired. The default (i.e., when that macro
3024 isn't defined) is OpenSSL 0.9.6c compatibility.
3026 There are also macros that enable and disable the support of old
3027 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
3028 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
3029 are defined, the default will apply: to support the old des routines.
3031 In either case, one must include openssl/des.h to get the correct
3032 definitions. Do not try to just include openssl/des_old.h, that
3035 NOTE: This is a major break of an old API into a new one. Software
3036 authors are encouraged to switch to the DES_ style functions. Some
3037 time in the future, des_old.h and the libdes compatibility functions
3038 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
3039 default), and then completely removed.
3042 *) Test for certificates which contain unsupported critical extensions.
3043 If such a certificate is found during a verify operation it is
3044 rejected by default: this behaviour can be overridden by either
3045 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
3046 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
3047 X509_supported_extension() has also been added which returns 1 if a
3048 particular extension is supported.
3051 *) Modify the behaviour of EVP cipher functions in similar way to digests
3052 to retain compatibility with existing code.
3055 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
3056 compatibility with existing code. In particular the 'ctx' parameter does
3057 not have to be to be initialized before the call to EVP_DigestInit() and
3058 it is tidied up after a call to EVP_DigestFinal(). New function
3059 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
3060 EVP_MD_CTX_copy() changed to not require the destination to be
3061 initialized valid and new function EVP_MD_CTX_copy_ex() added which
3062 requires the destination to be valid.
3064 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
3065 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
3068 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
3069 so that complete 'Handshake' protocol structures are kept in memory
3070 instead of overwriting 'msg_type' and 'length' with 'body' data.
3073 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
3074 [Massimo Santin via Richard Levitte]
3076 *) Major restructuring to the underlying ENGINE code. This includes
3077 reduction of linker bloat, separation of pure "ENGINE" manipulation
3078 (initialisation, etc) from functionality dealing with implementations
3079 of specific crypto iterfaces. This change also introduces integrated
3080 support for symmetric ciphers and digest implementations - so ENGINEs
3081 can now accelerate these by providing EVP_CIPHER and EVP_MD
3082 implementations of their own. This is detailed in crypto/engine/README
3083 as it couldn't be adequately described here. However, there are a few
3084 API changes worth noting - some RSA, DSA, DH, and RAND functions that
3085 were changed in the original introduction of ENGINE code have now
3086 reverted back - the hooking from this code to ENGINE is now a good
3087 deal more passive and at run-time, operations deal directly with
3088 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
3089 dereferencing through an ENGINE pointer any more. Also, the ENGINE
3090 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
3091 they were not being used by the framework as there is no concept of a
3092 BIGNUM_METHOD and they could not be generalised to the new
3093 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
3094 ENGINE_cpy() has been removed as it cannot be consistently defined in
3098 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
3101 *) Change mkdef.pl to sort symbols that get the same entry number,
3102 and make sure the automatically generated functions ERR_load_*
3103 become part of libeay.num as well.
3106 *) New function SSL_renegotiate_pending(). This returns true once
3107 renegotiation has been requested (either SSL_renegotiate() call
3108 or HelloRequest/ClientHello receveived from the peer) and becomes
3109 false once a handshake has been completed.
3110 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
3111 sends a HelloRequest, but does not ensure that a handshake takes
3112 place. SSL_renegotiate_pending() is useful for checking if the
3113 client has followed the request.)
3116 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
3117 By default, clients may request session resumption even during
3118 renegotiation (if session ID contexts permit); with this option,
3119 session resumption is possible only in the first handshake.
3121 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
3122 more bits available for options that should not be part of
3123 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
3126 *) Add some demos for certificate and certificate request creation.
3129 *) Make maximum certificate chain size accepted from the peer application
3130 settable (SSL*_get/set_max_cert_list()), as proposed by
3131 "Douglas E. Engert" <deengert@anl.gov>.
3134 *) Add support for shared libraries for Unixware-7
3135 (Boyd Lynn Gerber <gerberb@zenez.com>).
3138 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
3139 be done prior to destruction. Use this to unload error strings from
3140 ENGINEs that load their own error strings. NB: This adds two new API
3141 functions to "get" and "set" this destroy handler in an ENGINE.
3144 *) Alter all existing ENGINE implementations (except "openssl" and
3145 "openbsd") to dynamically instantiate their own error strings. This
3146 makes them more flexible to be built both as statically-linked ENGINEs
3147 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
3148 Also, add stub code to each that makes building them as self-contained
3149 shared-libraries easier (see README.ENGINE).
3152 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
3153 implementations into applications that are completely implemented in
3154 self-contained shared-libraries. The "dynamic" ENGINE exposes control
3155 commands that can be used to configure what shared-library to load and
3156 to control aspects of the way it is handled. Also, made an update to
3157 the README.ENGINE file that brings its information up-to-date and
3158 provides some information and instructions on the "dynamic" ENGINE
3159 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
3162 *) Make it possible to unload ranges of ERR strings with a new
3163 "ERR_unload_strings" function.
3166 *) Add a copy() function to EVP_MD.
3169 *) Make EVP_MD routines take a context pointer instead of just the
3170 md_data void pointer.
3173 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
3174 that the digest can only process a single chunk of data
3175 (typically because it is provided by a piece of
3176 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
3177 is only going to provide a single chunk of data, and hence the
3178 framework needn't accumulate the data for oneshot drivers.
3181 *) As with "ERR", make it possible to replace the underlying "ex_data"
3182 functions. This change also alters the storage and management of global
3183 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
3184 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
3185 index counters. The API functions that use this state have been changed
3186 to take a "class_index" rather than pointers to the class's local STACK
3187 and counter, and there is now an API function to dynamically create new
3188 classes. This centralisation allows us to (a) plug a lot of the
3189 thread-safety problems that existed, and (b) makes it possible to clean
3190 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
3191 such data would previously have always leaked in application code and
3192 workarounds were in place to make the memory debugging turn a blind eye
3193 to it. Application code that doesn't use this new function will still
3194 leak as before, but their memory debugging output will announce it now
3195 rather than letting it slide.
3197 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
3198 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
3199 has a return value to indicate success or failure.
3202 *) Make it possible to replace the underlying "ERR" functions such that the
3203 global state (2 LHASH tables and 2 locks) is only used by the "default"
3204 implementation. This change also adds two functions to "get" and "set"
3205 the implementation prior to it being automatically set the first time
3206 any other ERR function takes place. Ie. an application can call "get",
3207 pass the return value to a module it has just loaded, and that module
3208 can call its own "set" function using that value. This means the
3209 module's "ERR" operations will use (and modify) the error state in the
3210 application and not in its own statically linked copy of OpenSSL code.
3213 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
3214 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
3215 the operation, and provides a more encapsulated way for external code
3216 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
3217 to use these functions rather than manually incrementing the counts.
3219 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
3222 *) Add EVP test program.
3225 *) Add symmetric cipher support to ENGINE. Expect the API to change!
3228 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
3229 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
3230 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
3231 These allow a CRL to be built without having to access X509_CRL fields
3232 directly. Modify 'ca' application to use new functions.
3235 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
3236 bug workarounds. Rollback attack detection is a security feature.
3237 The problem will only arise on OpenSSL servers when TLSv1 is not
3238 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
3239 Software authors not wanting to support TLSv1 will have special reasons
3240 for their choice and can explicitly enable this option.
3241 [Bodo Moeller, Lutz Jaenicke]
3243 *) Rationalise EVP so it can be extended: don't include a union of
3244 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
3245 (similar to those existing for EVP_CIPHER_CTX).
3250 EVP_MD_CTX_init(&md); /* new function call */
3251 EVP_DigestInit(&md, EVP_sha1());
3252 EVP_DigestUpdate(&md, in, len);
3253 EVP_DigestFinal(&md, out, NULL);
3254 EVP_MD_CTX_cleanup(&md); /* new function call */
3258 *) Make DES key schedule conform to the usual scheme, as well as
3259 correcting its structure. This means that calls to DES functions
3260 now have to pass a pointer to a des_key_schedule instead of a
3261 plain des_key_schedule (which was actually always a pointer
3264 des_key_schedule ks;
3266 des_set_key_checked(..., &ks);
3267 des_ncbc_encrypt(..., &ks, ...);
3269 (Note that a later change renames 'des_...' into 'DES_...'.)
3272 *) Initial reduction of linker bloat: the use of some functions, such as
3273 PEM causes large amounts of unused functions to be linked in due to
3274 poor organisation. For example pem_all.c contains every PEM function
3275 which has a knock on effect of linking in large amounts of (unused)
3276 ASN1 code. Grouping together similar functions and splitting unrelated
3277 functions prevents this.
3280 *) Cleanup of EVP macros.
3283 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
3284 correct _ecb suffix.
3287 *) Add initial OCSP responder support to ocsp application. The
3288 revocation information is handled using the text based index
3289 use by the ca application. The responder can either handle
3290 requests generated internally, supplied in files (for example
3291 via a CGI script) or using an internal minimal server.
3294 *) Add configuration choices to get zlib compression for TLS.
3297 *) Changes to Kerberos SSL for RFC 2712 compliance:
3298 1. Implemented real KerberosWrapper, instead of just using
3299 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
3300 2. Implemented optional authenticator field of KerberosWrapper.
3302 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
3303 and authenticator structs; see crypto/krb5/.
3305 Generalized Kerberos calls to support multiple Kerberos libraries.
3306 [Vern Staats <staatsvr@asc.hpc.mil>,
3307 Jeffrey Altman <jaltman@columbia.edu>
3308 via Richard Levitte]
3310 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
3311 already does with RSA. testdsa.h now has 'priv_key/pub_key'
3312 values for each of the key sizes rather than having just
3313 parameters (and 'speed' generating keys each time).
3316 *) Speed up EVP routines.
3319 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
3320 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
3321 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
3322 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
3324 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
3325 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
3326 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
3329 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
3331 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
3334 *) Added the OS2-EMX target.
3335 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
3337 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
3338 to support NCONF routines in extension code. New function CONF_set_nconf()
3339 to allow functions which take an NCONF to also handle the old LHASH
3340 structure: this means that the old CONF compatible routines can be
3341 retained (in particular wrt extensions) without having to duplicate the
3342 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
3345 *) Enhance the general user interface with mechanisms for inner control
3346 and with possibilities to have yes/no kind of prompts.
3349 *) Change all calls to low level digest routines in the library and
3350 applications to use EVP. Add missing calls to HMAC_cleanup() and
3351 don't assume HMAC_CTX can be copied using memcpy().
3352 [Verdon Walker <VWalker@novell.com>, Steve Henson]
3354 *) Add the possibility to control engines through control names but with
3355 arbitrary arguments instead of just a string.
3356 Change the key loaders to take a UI_METHOD instead of a callback
3357 function pointer. NOTE: this breaks binary compatibility with earlier
3358 versions of OpenSSL [engine].
3359 Adapt the nCipher code for these new conditions and add a card insertion
3363 *) Enhance the general user interface with mechanisms to better support
3364 dialog box interfaces, application-defined prompts, the possibility
3365 to use defaults (for example default passwords from somewhere else)
3366 and interrupts/cancellations.
3369 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
3370 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
3373 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
3374 tidy up some unnecessarily weird code in 'sk_new()').
3375 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
3377 *) Change the key loading routines for ENGINEs to use the same kind
3378 callback (pem_password_cb) as all other routines that need this
3382 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
3383 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
3384 than this minimum value is recommended.
3387 *) New random seeder for OpenVMS, using the system process statistics
3388 that are easily reachable.
3391 *) Windows apparently can't transparently handle global
3392 variables defined in DLLs. Initialisations such as:
3394 const ASN1_ITEM *it = &ASN1_INTEGER_it;
3396 wont compile. This is used by the any applications that need to
3397 declare their own ASN1 modules. This was fixed by adding the option
3398 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
3399 needed for static libraries under Win32.
3402 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
3403 setting of purpose and trust fields. New X509_STORE trust and
3404 purpose functions and tidy up setting in other SSL functions.
3407 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
3408 structure. These are inherited by X509_STORE_CTX when it is
3409 initialised. This allows various defaults to be set in the
3410 X509_STORE structure (such as flags for CRL checking and custom
3411 purpose or trust settings) for functions which only use X509_STORE_CTX
3412 internally such as S/MIME.
3414 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
3415 trust settings if they are not set in X509_STORE. This allows X509_STORE
3416 purposes and trust (in S/MIME for example) to override any set by default.
3418 Add command line options for CRL checking to smime, s_client and s_server
3422 *) Initial CRL based revocation checking. If the CRL checking flag(s)
3423 are set then the CRL is looked up in the X509_STORE structure and
3424 its validity and signature checked, then if the certificate is found
3425 in the CRL the verify fails with a revoked error.
3427 Various new CRL related callbacks added to X509_STORE_CTX structure.
3429 Command line options added to 'verify' application to support this.
3431 This needs some additional work, such as being able to handle multiple
3432 CRLs with different times, extension based lookup (rather than just
3433 by subject name) and ultimately more complete V2 CRL extension
3437 *) Add a general user interface API (crypto/ui/). This is designed
3438 to replace things like des_read_password and friends (backward
3439 compatibility functions using this new API are provided).
3440 The purpose is to remove prompting functions from the DES code
3441 section as well as provide for prompting through dialog boxes in
3442 a window system and the like.
3445 *) Add "ex_data" support to ENGINE so implementations can add state at a
3446 per-structure level rather than having to store it globally.
3449 *) Make it possible for ENGINE structures to be copied when retrieved by
3450 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
3451 This causes the "original" ENGINE structure to act like a template,
3452 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
3453 operational state can be localised to each ENGINE structure, despite the
3454 fact they all share the same "methods". New ENGINE structures returned in
3455 this case have no functional references and the return value is the single
3456 structural reference. This matches the single structural reference returned
3457 by ENGINE_by_id() normally, when it is incremented on the pre-existing
3461 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
3462 needs to match any other type at all we need to manually clear the
3466 *) Changes to the "openssl engine" utility to include;
3467 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
3468 about an ENGINE's available control commands.
3469 - executing control commands from command line arguments using the
3470 '-pre' and '-post' switches. '-post' is only used if '-t' is
3471 specified and the ENGINE is successfully initialised. The syntax for
3472 the individual commands are colon-separated, for example;
3473 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
3476 *) New dynamic control command support for ENGINEs. ENGINEs can now
3477 declare their own commands (numbers), names (strings), descriptions,
3478 and input types for run-time discovery by calling applications. A
3479 subset of these commands are implicitly classed as "executable"
3480 depending on their input type, and only these can be invoked through
3481 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
3482 can be based on user input, config files, etc). The distinction is
3483 that "executable" commands cannot return anything other than a boolean
3484 result and can only support numeric or string input, whereas some
3485 discoverable commands may only be for direct use through
3486 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
3487 pointers, or other custom uses. The "executable" commands are to
3488 support parameterisations of ENGINE behaviour that can be
3489 unambiguously defined by ENGINEs and used consistently across any
3490 OpenSSL-based application. Commands have been added to all the
3491 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
3492 control over shared-library paths without source code alterations.
3495 *) Changed all ENGINE implementations to dynamically allocate their
3496 ENGINEs rather than declaring them statically. Apart from this being
3497 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
3498 this also allows the implementations to compile without using the
3499 internal engine_int.h header.
3502 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
3503 'const' value. Any code that should be able to modify a RAND_METHOD
3504 should already have non-const pointers to it (ie. they should only
3505 modify their own ones).
3508 *) Made a variety of little tweaks to the ENGINE code.
3509 - "atalla" and "ubsec" string definitions were moved from header files
3510 to C code. "nuron" string definitions were placed in variables
3511 rather than hard-coded - allowing parameterisation of these values
3512 later on via ctrl() commands.
3513 - Removed unused "#if 0"'d code.
3514 - Fixed engine list iteration code so it uses ENGINE_free() to release
3515 structural references.
3516 - Constified the RAND_METHOD element of ENGINE structures.
3517 - Constified various get/set functions as appropriate and added
3518 missing functions (including a catch-all ENGINE_cpy that duplicates
3519 all ENGINE values onto a new ENGINE except reference counts/state).
3520 - Removed NULL parameter checks in get/set functions. Setting a method
3521 or function to NULL is a way of cancelling out a previously set
3522 value. Passing a NULL ENGINE parameter is just plain stupid anyway
3523 and doesn't justify the extra error symbols and code.
3524 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
3525 flags from engine_int.h to engine.h.
3526 - Changed prototypes for ENGINE handler functions (init(), finish(),
3527 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
3530 *) Implement binary inversion algorithm for BN_mod_inverse in addition
3531 to the algorithm using long division. The binary algorithm can be
3532 used only if the modulus is odd. On 32-bit systems, it is faster
3533 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
3534 roughly 5-15% for 256-bit moduli), so we use it only for moduli
3535 up to 450 bits. In 64-bit environments, the binary algorithm
3536 appears to be advantageous for much longer moduli; here we use it
3537 for moduli up to 2048 bits.
3540 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
3541 could not support the combine flag in choice fields.
3544 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
3545 extensions from a certificate request to the certificate.
3548 *) Allow multiple 'certopt' and 'nameopt' options to be separated
3549 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
3550 file: this allows the display of the certificate about to be
3551 signed to be customised, to allow certain fields to be included
3552 or excluded and extension details. The old system didn't display
3553 multicharacter strings properly, omitted fields not in the policy
3554 and couldn't display additional details such as extensions.
3557 *) Function EC_POINTs_mul for multiple scalar multiplication
3558 of an arbitrary number of elliptic curve points
3559 \sum scalars[i]*points[i],
3560 optionally including the generator defined for the EC_GROUP:
3561 scalar*generator + \sum scalars[i]*points[i].
3563 EC_POINT_mul is a simple wrapper function for the typical case
3564 that the point list has just one item (besides the optional
3568 *) First EC_METHODs for curves over GF(p):
3570 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
3571 operations and provides various method functions that can also
3572 operate with faster implementations of modular arithmetic.
3574 EC_GFp_mont_method() reuses most functions that are part of
3575 EC_GFp_simple_method, but uses Montgomery arithmetic.
3577 [Bodo Moeller; point addition and point doubling
3578 implementation directly derived from source code provided by
3579 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
3581 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
3582 crypto/ec/ec_lib.c):
3584 Curves are EC_GROUP objects (with an optional group generator)
3585 based on EC_METHODs that are built into the library.
3587 Points are EC_POINT objects based on EC_GROUP objects.
3589 Most of the framework would be able to handle curves over arbitrary
3590 finite fields, but as there are no obvious types for fields other
3591 than GF(p), some functions are limited to that for now.
3594 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
3595 that the file contains a complete HTTP response.
3598 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
3599 change the def and num file printf format specifier from "%-40sXXX"
3600 to "%-39s XXX". The latter will always guarantee a space after the
3601 field while the former will cause them to run together if the field
3602 is 40 of more characters long.
3605 *) Constify the cipher and digest 'method' functions and structures
3606 and modify related functions to take constant EVP_MD and EVP_CIPHER
3610 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
3611 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
3614 *) Modify EVP_Digest*() routines so they now return values. Although the
3615 internal software routines can never fail additional hardware versions
3619 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
3621 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
3622 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
3625 ERR_R_NESTED_ASN1_ERROR
3627 ERR_R_MISSING_ASN1_EOS
3628 were 4 .. 9, conflicting with
3629 ERR_LIB_RSA (= ERR_R_RSA_LIB)
3631 ERR_LIB_PEM (= ERR_R_PEM_LIB).
3632 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
3634 Add new error code 'ERR_R_INTERNAL_ERROR'.
3637 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
3641 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
3642 sets the subject name for a new request or supersedes the
3643 subject name in a given request. Formats that can be parsed are
3644 'CN=Some Name, OU=myOU, C=IT'
3646 'CN=Some Name/OU=myOU/C=IT'.
3648 Add options '-batch' and '-verbose' to 'openssl req'.
3649 [Massimiliano Pala <madwolf@hackmasters.net>]
3651 *) Introduce the possibility to access global variables through
3652 functions on platform were that's the best way to handle exporting
3653 global variables in shared libraries. To enable this functionality,
3654 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
3655 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
3656 is normally done by Configure or something similar).
3658 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
3659 in the source file (foo.c) like this:
3661 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
3662 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
3664 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
3665 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
3667 OPENSSL_DECLARE_GLOBAL(int,foo);
3668 #define foo OPENSSL_GLOBAL_REF(foo)
3669 OPENSSL_DECLARE_GLOBAL(double,bar);
3670 #define bar OPENSSL_GLOBAL_REF(bar)
3672 The #defines are very important, and therefore so is including the
3673 header file everywhere where the defined globals are used.
3675 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
3676 of ASN.1 items, but that structure is a bit different.
3678 The largest change is in util/mkdef.pl which has been enhanced with
3679 better and easier to understand logic to choose which symbols should
3680 go into the Windows .def files as well as a number of fixes and code
3681 cleanup (among others, algorithm keywords are now sorted
3682 lexicographically to avoid constant rewrites).
3685 *) In BN_div() keep a copy of the sign of 'num' before writing the
3686 result to 'rm' because if rm==num the value will be overwritten
3687 and produce the wrong result if 'num' is negative: this caused
3688 problems with BN_mod() and BN_nnmod().
3691 *) Function OCSP_request_verify(). This checks the signature on an
3692 OCSP request and verifies the signer certificate. The signer
3693 certificate is just checked for a generic purpose and OCSP request
3697 *) Add OCSP_check_validity() function to check the validity of OCSP
3698 responses. OCSP responses are prepared in real time and may only
3699 be a few seconds old. Simply checking that the current time lies
3700 between thisUpdate and nextUpdate max reject otherwise valid responses
3701 caused by either OCSP responder or client clock inaccuracy. Instead
3702 we allow thisUpdate and nextUpdate to fall within a certain period of
3703 the current time. The age of the response can also optionally be
3704 checked. Two new options -validity_period and -status_age added to
3708 *) If signature or public key algorithm is unrecognized print out its
3709 OID rather that just UNKNOWN.
3712 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
3713 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
3714 ID to be generated from the issuer certificate alone which can then be
3715 passed to OCSP_id_issuer_cmp().
3718 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
3719 ASN1 modules to export functions returning ASN1_ITEM pointers
3720 instead of the ASN1_ITEM structures themselves. This adds several
3721 new macros which allow the underlying ASN1 function/structure to
3722 be accessed transparently. As a result code should not use ASN1_ITEM
3723 references directly (such as &X509_it) but instead use the relevant
3724 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
3725 use of the new ASN1 code on platforms where exporting structures
3726 is problematical (for example in shared libraries) but exporting
3727 functions returning pointers to structures is not.
3730 *) Add support for overriding the generation of SSL/TLS session IDs.
3731 These callbacks can be registered either in an SSL_CTX or per SSL.
3732 The purpose of this is to allow applications to control, if they wish,
3733 the arbitrary values chosen for use as session IDs, particularly as it
3734 can be useful for session caching in multiple-server environments. A
3735 command-line switch for testing this (and any client code that wishes
3736 to use such a feature) has been added to "s_server".
3737 [Geoff Thorpe, Lutz Jaenicke]
3739 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
3740 of the form '#if defined(...) || defined(...) || ...' and
3741 '#if !defined(...) && !defined(...) && ...'. This also avoids
3742 the growing number of special cases it was previously handling.
3745 *) Make all configuration macros available for application by making
3746 sure they are available in opensslconf.h, by giving them names starting
3747 with "OPENSSL_" to avoid conflicts with other packages and by making
3748 sure e_os2.h will cover all platform-specific cases together with
3750 Additionally, it is now possible to define configuration/platform-
3751 specific names (called "system identities"). In the C code, these
3752 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
3753 macro with the name beginning with "OPENSSL_SYS_", which is determined
3754 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
3758 *) New option -set_serial to 'req' and 'x509' this allows the serial
3759 number to use to be specified on the command line. Previously self
3760 signed certificates were hard coded with serial number 0 and the
3761 CA options of 'x509' had to use a serial number in a file which was
3765 *) New options to 'ca' utility to support V2 CRL entry extensions.
3766 Currently CRL reason, invalidity date and hold instruction are
3767 supported. Add new CRL extensions to V3 code and some new objects.
3770 *) New function EVP_CIPHER_CTX_set_padding() this is used to
3771 disable standard block padding (aka PKCS#5 padding) in the EVP
3772 API, which was previously mandatory. This means that the data is
3773 not padded in any way and so the total length much be a multiple
3774 of the block size, otherwise an error occurs.
3777 *) Initial (incomplete) OCSP SSL support.
3780 *) New function OCSP_parse_url(). This splits up a URL into its host,
3781 port and path components: primarily to parse OCSP URLs. New -url
3782 option to ocsp utility.
3785 *) New nonce behavior. The return value of OCSP_check_nonce() now
3786 reflects the various checks performed. Applications can decide
3787 whether to tolerate certain situations such as an absent nonce
3788 in a response when one was present in a request: the ocsp application
3789 just prints out a warning. New function OCSP_add1_basic_nonce()
3790 this is to allow responders to include a nonce in a response even if
3791 the request is nonce-less.
3794 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
3795 skipped when using openssl x509 multiple times on a single input file,
3796 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
3799 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
3800 set string type: to handle setting ASN1_TIME structures. Fix ca
3801 utility to correctly initialize revocation date of CRLs.
3804 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
3805 the clients preferred ciphersuites and rather use its own preferences.
3806 Should help to work around M$ SGC (Server Gated Cryptography) bug in
3807 Internet Explorer by ensuring unchanged hash method during stepup.
3808 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
3811 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
3812 to aes and add a new 'exist' option to print out symbols that don't
3816 *) Additional options to ocsp utility to allow flags to be set and
3817 additional certificates supplied.
3820 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
3821 OCSP client a number of certificate to only verify the response
3825 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
3826 handle the new API. Currently only ECB, CBC modes supported. Add new
3829 Add TLS AES ciphersuites as described in RFC3268, "Advanced
3830 Encryption Standard (AES) Ciphersuites for Transport Layer
3831 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
3832 not enabled by default and were not part of the "ALL" ciphersuite
3833 alias because they were not yet official; they could be
3834 explicitly requested by specifying the "AESdraft" ciphersuite
3835 group alias. In the final release of OpenSSL 0.9.7, the group
3836 alias is called "AES" and is part of "ALL".)
3837 [Ben Laurie, Steve Henson, Bodo Moeller]
3839 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
3840 request to response.
3843 *) Functions for OCSP responders. OCSP_request_onereq_count(),
3844 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
3845 extract information from a certificate request. OCSP_response_create()
3846 creates a response and optionally adds a basic response structure.
3847 OCSP_basic_add1_status() adds a complete single response to a basic
3848 response and returns the OCSP_SINGLERESP structure just added (to allow
3849 extensions to be included for example). OCSP_basic_add1_cert() adds a
3850 certificate to a basic response and OCSP_basic_sign() signs a basic
3851 response with various flags. New helper functions ASN1_TIME_check()
3852 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
3853 (converts ASN1_TIME to GeneralizedTime).
3856 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
3857 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
3858 structure from a certificate. X509_pubkey_digest() digests the public_key
3859 contents: this is used in various key identifiers.
3862 *) Make sk_sort() tolerate a NULL argument.
3863 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
3865 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
3866 passed by the function are trusted implicitly. If any of them signed the
3867 response then it is assumed to be valid and is not verified.
3870 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
3871 to data. This was previously part of the PKCS7 ASN1 code. This
3872 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
3873 [Steve Henson, reported by Kenneth R. Robinette
3874 <support@securenetterm.com>]
3876 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
3877 routines: without these tracing memory leaks is very painful.
3878 Fix leaks in PKCS12 and PKCS7 routines.
3881 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
3882 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
3883 effectively meant GeneralizedTime would never be used. Now it
3884 is initialised to -1 but X509_time_adj() now has to check the value
3885 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
3886 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
3887 [Steve Henson, reported by Kenneth R. Robinette
3888 <support@securenetterm.com>]
3890 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
3891 result in a zero length in the ASN1_INTEGER structure which was
3892 not consistent with the structure when d2i_ASN1_INTEGER() was used
3893 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
3894 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
3895 where it did not print out a minus for negative ASN1_INTEGER.
3898 *) Add summary printout to ocsp utility. The various functions which
3899 convert status values to strings have been renamed to:
3900 OCSP_response_status_str(), OCSP_cert_status_str() and
3901 OCSP_crl_reason_str() and are no longer static. New options
3902 to verify nonce values and to disable verification. OCSP response
3903 printout format cleaned up.
3906 *) Add additional OCSP certificate checks. These are those specified
3907 in RFC2560. This consists of two separate checks: the CA of the
3908 certificate being checked must either be the OCSP signer certificate
3909 or the issuer of the OCSP signer certificate. In the latter case the
3910 OCSP signer certificate must contain the OCSP signing extended key
3911 usage. This check is performed by attempting to match the OCSP
3912 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
3913 in the OCSP_CERTID structures of the response.
3916 *) Initial OCSP certificate verification added to OCSP_basic_verify()
3917 and related routines. This uses the standard OpenSSL certificate
3918 verify routines to perform initial checks (just CA validity) and
3919 to obtain the certificate chain. Then additional checks will be
3920 performed on the chain. Currently the root CA is checked to see
3921 if it is explicitly trusted for OCSP signing. This is used to set
3922 a root CA as a global signing root: that is any certificate that
3923 chains to that CA is an acceptable OCSP signing certificate.
3926 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
3927 extensions from a separate configuration file.
3928 As when reading extensions from the main configuration file,
3929 the '-extensions ...' option may be used for specifying the
3931 [Massimiliano Pala <madwolf@comune.modena.it>]
3933 *) New OCSP utility. Allows OCSP requests to be generated or
3934 read. The request can be sent to a responder and the output
3935 parsed, outputed or printed in text form. Not complete yet:
3936 still needs to check the OCSP response validity.
3939 *) New subcommands for 'openssl ca':
3940 'openssl ca -status <serial>' prints the status of the cert with
3941 the given serial number (according to the index file).
3942 'openssl ca -updatedb' updates the expiry status of certificates
3944 [Massimiliano Pala <madwolf@comune.modena.it>]
3946 *) New '-newreq-nodes' command option to CA.pl. This is like
3947 '-newreq', but calls 'openssl req' with the '-nodes' option
3948 so that the resulting key is not encrypted.
3949 [Damien Miller <djm@mindrot.org>]
3951 *) New configuration for the GNU Hurd.
3952 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
3954 *) Initial code to implement OCSP basic response verify. This
3955 is currently incomplete. Currently just finds the signer's
3956 certificate and verifies the signature on the response.
3959 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
3960 value of OPENSSLDIR. This is available via the new '-d' option
3961 to 'openssl version', and is also included in 'openssl version -a'.
3964 *) Allowing defining memory allocation callbacks that will be given
3965 file name and line number information in additional arguments
3966 (a const char* and an int). The basic functionality remains, as
3967 well as the original possibility to just replace malloc(),
3968 realloc() and free() by functions that do not know about these
3969 additional arguments. To register and find out the current
3970 settings for extended allocation functions, the following
3971 functions are provided:
3973 CRYPTO_set_mem_ex_functions
3974 CRYPTO_set_locked_mem_ex_functions
3975 CRYPTO_get_mem_ex_functions
3976 CRYPTO_get_locked_mem_ex_functions
3978 These work the same way as CRYPTO_set_mem_functions and friends.
3979 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
3980 extended allocation function is enabled.
3981 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
3982 a conventional allocation function is enabled.
3983 [Richard Levitte, Bodo Moeller]
3985 *) Finish off removing the remaining LHASH function pointer casts.
3986 There should no longer be any prototype-casting required when using
3987 the LHASH abstraction, and any casts that remain are "bugs". See
3988 the callback types and macros at the head of lhash.h for details
3989 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
3992 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
3993 If /dev/[u]random devices are not available or do not return enough
3994 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
3996 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
3997 /etc/entropy will be queried once each in this sequence, quering stops
3998 when enough entropy was collected without querying more sockets.
4001 *) Change the Unix RAND_poll() variant to be able to poll several
4002 random devices, as specified by DEVRANDOM, until a sufficient amount
4003 of data has been collected. We spend at most 10 ms on each file
4004 (select timeout) and read in non-blocking mode. DEVRANDOM now
4005 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
4006 (previously it was just the string "/dev/urandom"), so on typical
4007 platforms the 10 ms delay will never occur.
4008 Also separate out the Unix variant to its own file, rand_unix.c.
4009 For VMS, there's a currently-empty rand_vms.c.
4012 *) Move OCSP client related routines to ocsp_cl.c. These
4013 provide utility functions which an application needing
4014 to issue a request to an OCSP responder and analyse the
4015 response will typically need: as opposed to those which an
4016 OCSP responder itself would need which will be added later.
4018 OCSP_request_sign() signs an OCSP request with an API similar
4019 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
4020 response. OCSP_response_get1_basic() extracts basic response
4021 from response. OCSP_resp_find_status(): finds and extracts status
4022 information from an OCSP_CERTID structure (which will be created
4023 when the request structure is built). These are built from lower
4024 level functions which work on OCSP_SINGLERESP structures but
4025 wont normally be used unless the application wishes to examine
4026 extensions in the OCSP response for example.
4028 Replace nonce routines with a pair of functions.
4029 OCSP_request_add1_nonce() adds a nonce value and optionally
4030 generates a random value. OCSP_check_nonce() checks the
4031 validity of the nonce in an OCSP response.
4034 *) Change function OCSP_request_add() to OCSP_request_add0_id().
4035 This doesn't copy the supplied OCSP_CERTID and avoids the
4036 need to free up the newly created id. Change return type
4037 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
4038 This can then be used to add extensions to the request.
4039 Deleted OCSP_request_new(), since most of its functionality
4040 is now in OCSP_REQUEST_new() (and the case insensitive name
4041 clash) apart from the ability to set the request name which
4042 will be added elsewhere.
4045 *) Update OCSP API. Remove obsolete extensions argument from
4046 various functions. Extensions are now handled using the new
4047 OCSP extension code. New simple OCSP HTTP function which
4048 can be used to send requests and parse the response.
4051 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
4052 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
4053 uses the special reorder version of SET OF to sort the attributes
4054 and reorder them to match the encoded order. This resolves a long
4055 standing problem: a verify on a PKCS7 structure just after signing
4056 it used to fail because the attribute order did not match the
4057 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
4058 it uses the received order. This is necessary to tolerate some broken
4059 software that does not order SET OF. This is handled by encoding
4060 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
4061 to produce the required SET OF.
4064 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
4065 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
4066 files to get correct declarations of the ASN.1 item variables.
4069 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
4070 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
4071 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
4072 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
4073 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
4074 ASN1_ITEM and no wrapper functions.
4077 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
4078 replace the old function pointer based I/O routines. Change most of
4079 the *_d2i_bio() and *_d2i_fp() functions to use these.
4082 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
4083 lines, recognice more "algorithms" that can be deselected, and make
4084 it complain about algorithm deselection that isn't recognised.
4087 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
4088 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
4089 to use new functions. Add NO_ASN1_OLD which can be set to remove
4090 some old style ASN1 functions: this can be used to determine if old
4091 code will still work when these eventually go away.
4094 *) New extension functions for OCSP structures, these follow the
4095 same conventions as certificates and CRLs.
4098 *) New function X509V3_add1_i2d(). This automatically encodes and
4099 adds an extension. Its behaviour can be customised with various
4100 flags to append, replace or delete. Various wrappers added for
4101 certifcates and CRLs.
4104 *) Fix to avoid calling the underlying ASN1 print routine when
4105 an extension cannot be parsed. Correct a typo in the
4106 OCSP_SERVICELOC extension. Tidy up print OCSP format.
4109 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
4110 entries for variables.
4113 *) Add functionality to apps/openssl.c for detecting locking
4114 problems: As the program is single-threaded, all we have
4115 to do is register a locking callback using an array for
4116 storing which locks are currently held by the program.
4119 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
4120 SSL_get_ex_data_X509_STORE_idx(), which is used in
4121 ssl_verify_cert_chain() and thus can be called at any time
4122 during TLS/SSL handshakes so that thread-safety is essential.
4123 Unfortunately, the ex_data design is not at all suited
4124 for multi-threaded use, so it probably should be abolished.
4127 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
4128 [Broadcom, tweaked and integrated by Geoff Thorpe]
4130 *) Move common extension printing code to new function
4131 X509V3_print_extensions(). Reorganise OCSP print routines and
4132 implement some needed OCSP ASN1 functions. Add OCSP extensions.
4135 *) New function X509_signature_print() to remove duplication in some
4139 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
4140 set (this was treated exactly the same as SET OF previously). This
4141 is used to reorder the STACK representing the structure to match the
4142 encoding. This will be used to get round a problem where a PKCS7
4143 structure which was signed could not be verified because the STACK
4144 order did not reflect the encoded order.
4147 *) Reimplement the OCSP ASN1 module using the new code.
4150 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
4151 for its ASN1 operations. The old style function pointers still exist
4152 for now but they will eventually go away.
4155 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
4156 completely replaces the old ASN1 functionality with a table driven
4157 encoder and decoder which interprets an ASN1_ITEM structure describing
4158 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
4159 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
4160 has also been converted to the new form.
4163 *) Change BN_mod_exp_recp so that negative moduli are tolerated
4164 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
4165 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
4166 for negative moduli.
4169 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
4170 of not touching the result's sign bit.
4173 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
4177 *) Changed the LHASH code to use prototypes for callbacks, and created
4178 macros to declare and implement thin (optionally static) functions
4179 that provide type-safety and avoid function pointer casting for the
4180 type-specific callbacks.
4183 *) Added Kerberos Cipher Suites to be used with TLS, as written in
4185 [Veers Staats <staatsvr@asc.hpc.mil>,
4186 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
4188 *) Reformat the FAQ so the different questions and answers can be divided
4189 in sections depending on the subject.
4192 *) Have the zlib compression code load ZLIB.DLL dynamically under
4196 *) New function BN_mod_sqrt for computing square roots modulo a prime
4197 (using the probabilistic Tonelli-Shanks algorithm unless
4198 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
4199 be handled deterministically).
4200 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4202 *) Make BN_mod_inverse faster by explicitly handling small quotients
4203 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
4204 512 bits], about 30% for larger ones [1024 or 2048 bits].)
4207 *) New function BN_kronecker.
4210 *) Fix BN_gcd so that it works on negative inputs; the result is
4211 positive unless both parameters are zero.
4212 Previously something reasonably close to an infinite loop was
4213 possible because numbers could be growing instead of shrinking
4214 in the implementation of Euclid's algorithm.
4217 *) Fix BN_is_word() and BN_is_one() macros to take into account the
4218 sign of the number in question.
4220 Fix BN_is_word(a,w) to work correctly for w == 0.
4222 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
4223 because its test if the absolute value of 'a' equals 'w'.
4224 Note that BN_abs_is_word does *not* handle w == 0 reliably;
4225 it exists mostly for use in the implementations of BN_is_zero(),
4226 BN_is_one(), and BN_is_word().
4229 *) New function BN_swap.
4232 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
4233 the exponentiation functions are more likely to produce reasonable
4234 results on negative inputs.
4237 *) Change BN_mod_mul so that the result is always non-negative.
4238 Previously, it could be negative if one of the factors was negative;
4239 I don't think anyone really wanted that behaviour.
4242 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
4243 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
4244 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
4245 and add new functions:
4254 BN_mod_lshift1_quick
4258 These functions always generate non-negative results.
4260 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
4261 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
4263 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
4264 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
4265 be reduced modulo m.
4266 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4269 The following entry accidentily appeared in the CHANGES file
4270 distributed with OpenSSL 0.9.7. The modifications described in
4271 it do *not* apply to OpenSSL 0.9.7.
4273 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
4274 was actually never needed) and in BN_mul(). The removal in BN_mul()
4275 required a small change in bn_mul_part_recursive() and the addition
4276 of the functions bn_cmp_part_words(), bn_sub_part_words() and
4277 bn_add_part_words(), which do the same thing as bn_cmp_words(),
4278 bn_sub_words() and bn_add_words() except they take arrays with
4283 *) In 'openssl passwd', verify passwords read from the terminal
4284 unless the '-salt' option is used (which usually means that
4285 verification would just waste user's time since the resulting
4286 hash is going to be compared with some given password hash)
4287 or the new '-noverify' option is used.
4289 This is an incompatible change, but it does not affect
4290 non-interactive use of 'openssl passwd' (passwords on the command
4291 line, '-stdin' option, '-in ...' option) and thus should not
4295 *) Remove all references to RSAref, since there's no more need for it.
4298 *) Make DSO load along a path given through an environment variable
4299 (SHLIB_PATH) with shl_load().
4302 *) Constify the ENGINE code as a result of BIGNUM constification.
4303 Also constify the RSA code and most things related to it. In a
4304 few places, most notable in the depth of the ASN.1 code, ugly
4305 casts back to non-const were required (to be solved at a later
4309 *) Make it so the openssl application has all engines loaded by default.
4312 *) Constify the BIGNUM routines a little more.
4315 *) Add the following functions:
4317 ENGINE_load_cswift()
4319 ENGINE_load_atalla()
4321 ENGINE_load_builtin_engines()
4323 That way, an application can itself choose if external engines that
4324 are built-in in OpenSSL shall ever be used or not. The benefit is
4325 that applications won't have to be linked with libdl or other dso
4326 libraries unless it's really needed.
4328 Changed 'openssl engine' to load all engines on demand.
4329 Changed the engine header files to avoid the duplication of some
4330 declarations (they differed!).
4333 *) 'openssl engine' can now list capabilities.
4336 *) Better error reporting in 'openssl engine'.
4339 *) Never call load_dh_param(NULL) in s_server.
4342 *) Add engine application. It can currently list engines by name and
4343 identity, and test if they are actually available.
4346 *) Improve RPM specification file by forcing symbolic linking and making
4347 sure the installed documentation is also owned by root.root.
4348 [Damien Miller <djm@mindrot.org>]
4350 *) Give the OpenSSL applications more possibilities to make use of
4351 keys (public as well as private) handled by engines.
4354 *) Add OCSP code that comes from CertCo.
4357 *) Add VMS support for the Rijndael code.
4360 *) Added untested support for Nuron crypto accelerator.
4363 *) Add support for external cryptographic devices. This code was
4364 previously distributed separately as the "engine" branch.
4365 [Geoff Thorpe, Richard Levitte]
4367 *) Rework the filename-translation in the DSO code. It is now possible to
4368 have far greater control over how a "name" is turned into a filename
4369 depending on the operating environment and any oddities about the
4370 different shared library filenames on each system.
4373 *) Support threads on FreeBSD-elf in Configure.
4376 *) Fix for SHA1 assembly problem with MASM: it produces
4377 warnings about corrupt line number information when assembling
4378 with debugging information. This is caused by the overlapping
4380 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
4383 NCONF_get_number() has no error checking at all. As a replacement,
4384 NCONF_get_number_e() is defined (_e for "error checking") and is
4385 promoted strongly. The old NCONF_get_number is kept around for
4386 binary backward compatibility.
4387 Make it possible for methods to load from something other than a BIO,
4388 by providing a function pointer that is given a name instead of a BIO.
4389 For example, this could be used to load configuration data from an
4393 *) Fix for non blocking accept BIOs. Added new I/O special reason
4394 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
4395 with non blocking I/O was not possible because no retry code was
4396 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
4400 *) Added the beginnings of Rijndael support.
4403 *) Fix for bug in DirectoryString mask setting. Add support for
4404 X509_NAME_print_ex() in 'req' and X509_print_ex() function
4405 to allow certificate printing to more controllable, additional
4406 'certopt' option to 'x509' to allow new printing options to be
4410 *) Clean old EAY MD5 hack from e_os.h.
4413 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
4415 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
4416 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
4417 [Joe Orton, Steve Henson]
4419 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
4421 *) Fix additional bug revealed by the NISCC test suite:
4423 Stop bug triggering large recursion when presented with
4424 certain ASN.1 tags (CVE-2003-0851)
4427 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
4429 *) Fix various bugs revealed by running the NISCC test suite:
4431 Stop out of bounds reads in the ASN1 code when presented with
4432 invalid tags (CVE-2003-0543 and CVE-2003-0544).
4434 If verify callback ignores invalid public key errors don't try to check
4435 certificate signature with the NULL public key.
4439 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
4440 if the server requested one: as stated in TLS 1.0 and SSL 3.0
4444 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
4445 extra data after the compression methods not only for TLS 1.0
4446 but also for SSL 3.0 (as required by the specification).
4447 [Bodo Moeller; problem pointed out by Matthias Loepfe]
4449 *) Change X509_certificate_type() to mark the key as exported/exportable
4450 when it's 512 *bits* long, not 512 bytes.
4453 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
4455 *) Countermeasure against the Klima-Pokorny-Rosa extension of
4456 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
4457 a protocol version number mismatch like a decryption error
4458 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
4461 *) Turn on RSA blinding by default in the default implementation
4462 to avoid a timing attack. Applications that don't want it can call
4463 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
4464 They would be ill-advised to do so in most cases.
4465 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
4467 *) Change RSA blinding code so that it works when the PRNG is not
4468 seeded (in this case, the secret RSA exponent is abused as
4469 an unpredictable seed -- if it is not unpredictable, there
4470 is no point in blinding anyway). Make RSA blinding thread-safe
4471 by remembering the creator's thread ID in rsa->blinding and
4472 having all other threads use local one-time blinding factors
4473 (this requires more computation than sharing rsa->blinding, but
4474 avoids excessive locking; and if an RSA object is not shared
4475 between threads, blinding will still be very fast).
4478 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
4480 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
4481 via timing by performing a MAC computation even if incorrrect
4482 block cipher padding has been found. This is a countermeasure
4483 against active attacks where the attacker has to distinguish
4484 between bad padding and a MAC verification error. (CVE-2003-0078)
4486 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
4487 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
4488 Martin Vuagnoux (EPFL, Ilion)]
4490 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
4492 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
4493 memory from it's contents. This is done with a counter that will
4494 place alternating values in each byte. This can be used to solve
4495 two issues: 1) the removal of calls to memset() by highly optimizing
4496 compilers, and 2) cleansing with other values than 0, since those can
4497 be read through on certain media, for example a swap space on disk.
4500 *) Bugfix: client side session caching did not work with external caching,
4501 because the session->cipher setting was not restored when reloading
4502 from the external cache. This problem was masked, when
4503 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
4504 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
4507 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
4508 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
4509 [Zeev Lieber <zeev-l@yahoo.com>]
4511 *) Undo an undocumented change introduced in 0.9.6e which caused
4512 repeated calls to OpenSSL_add_all_ciphers() and
4513 OpenSSL_add_all_digests() to be ignored, even after calling
4517 *) Change the default configuration reader to deal with last line not
4518 being properly terminated.
4521 *) Change X509_NAME_cmp() so it applies the special rules on handling
4522 DN values that are of type PrintableString, as well as RDNs of type
4523 emailAddress where the value has the type ia5String.
4524 [stefank@valicert.com via Richard Levitte]
4526 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
4527 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
4528 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
4529 the bitwise-OR of the two for use by the majority of applications
4530 wanting this behaviour, and update the docs. The documented
4531 behaviour and actual behaviour were inconsistent and had been
4532 changing anyway, so this is more a bug-fix than a behavioural
4534 [Geoff Thorpe, diagnosed by Nadav Har'El]
4536 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
4537 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
4540 *) Fix initialization code race conditions in
4541 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
4542 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
4543 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
4544 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
4545 ssl2_get_cipher_by_char(),
4546 ssl3_get_cipher_by_char().
4547 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
4549 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
4550 the cached sessions are flushed, as the remove_cb() might use ex_data
4551 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
4552 (see [openssl.org #212]).
4553 [Geoff Thorpe, Lutz Jaenicke]
4555 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
4556 length, instead of the encoding length to d2i_ASN1_OBJECT.
4559 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
4561 *) [In 0.9.6g-engine release:]
4562 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
4563 [Lynn Gazis <lgazis@rainbow.com>]
4565 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
4567 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
4568 and get fix the header length calculation.
4569 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
4570 Alon Kantor <alonk@checkpoint.com> (and others),
4573 *) Use proper error handling instead of 'assertions' in buffer
4574 overflow checks added in 0.9.6e. This prevents DoS (the
4575 assertions could call abort()).
4576 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
4578 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
4580 *) Add various sanity checks to asn1_get_length() to reject
4581 the ASN1 length bytes if they exceed sizeof(long), will appear
4582 negative or the content length exceeds the length of the
4584 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4586 *) Fix cipher selection routines: ciphers without encryption had no flags
4587 for the cipher strength set and where therefore not handled correctly
4588 by the selection routines (PR #130).
4591 *) Fix EVP_dsa_sha macro.
4595 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
4596 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
4597 that was added in OpenSSL 0.9.6d.
4599 As the countermeasure turned out to be incompatible with some
4600 broken SSL implementations, the new option is part of SSL_OP_ALL.
4601 SSL_OP_ALL is usually employed when compatibility with weird SSL
4602 implementations is desired (e.g. '-bugs' option to 's_client' and
4603 's_server'), so the new option is automatically set in many
4607 *) Changes in security patch:
4609 Changes marked "(CHATS)" were sponsored by the Defense Advanced
4610 Research Projects Agency (DARPA) and Air Force Research Laboratory,
4611 Air Force Materiel Command, USAF, under agreement number
4614 *) Add various sanity checks to asn1_get_length() to reject
4615 the ASN1 length bytes if they exceed sizeof(long), will appear
4616 negative or the content length exceeds the length of the
4617 supplied buffer. (CVE-2002-0659)
4618 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4620 *) Assertions for various potential buffer overflows, not known to
4622 [Ben Laurie (CHATS)]
4624 *) Various temporary buffers to hold ASCII versions of integers were
4625 too small for 64 bit platforms. (CVE-2002-0655)
4626 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
4628 *) Remote buffer overflow in SSL3 protocol - an attacker could
4629 supply an oversized session ID to a client. (CVE-2002-0656)
4630 [Ben Laurie (CHATS)]
4632 *) Remote buffer overflow in SSL2 protocol - an attacker could
4633 supply an oversized client master key. (CVE-2002-0656)
4634 [Ben Laurie (CHATS)]
4636 Changes between 0.9.6c and 0.9.6d [9 May 2002]
4638 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
4639 encoded as NULL) with id-dsa-with-sha1.
4640 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
4642 *) Check various X509_...() return values in apps/req.c.
4643 [Nils Larsch <nla@trustcenter.de>]
4645 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
4646 an end-of-file condition would erronously be flagged, when the CRLF
4647 was just at the end of a processed block. The bug was discovered when
4648 processing data through a buffering memory BIO handing the data to a
4649 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
4650 <ptsekov@syntrex.com> and Nedelcho Stanev.
4653 *) Implement a countermeasure against a vulnerability recently found
4654 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
4655 before application data chunks to avoid the use of known IVs
4656 with data potentially chosen by the attacker.
4659 *) Fix length checks in ssl3_get_client_hello().
4662 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
4663 to prevent ssl3_read_internal() from incorrectly assuming that
4664 ssl3_read_bytes() found application data while handshake
4665 processing was enabled when in fact s->s3->in_read_app_data was
4666 merely automatically cleared during the initial handshake.
4667 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
4669 *) Fix object definitions for Private and Enterprise: they were not
4670 recognized in their shortname (=lowercase) representation. Extend
4671 obj_dat.pl to issue an error when using undefined keywords instead
4672 of silently ignoring the problem (Svenning Sorensen
4673 <sss@sss.dnsalias.net>).
4676 *) Fix DH_generate_parameters() so that it works for 'non-standard'
4677 generators, i.e. generators other than 2 and 5. (Previously, the
4678 code did not properly initialise the 'add' and 'rem' values to
4679 BN_generate_prime().)
4681 In the new general case, we do not insist that 'generator' is
4682 actually a primitive root: This requirement is rather pointless;
4683 a generator of the order-q subgroup is just as good, if not
4687 *) Map new X509 verification errors to alerts. Discovered and submitted by
4688 Tom Wu <tom@arcot.com>.
4691 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
4692 returning non-zero before the data has been completely received
4693 when using non-blocking I/O.
4694 [Bodo Moeller; problem pointed out by John Hughes]
4696 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
4697 [Ben Laurie, Lutz Jaenicke]
4699 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
4700 Yoram Zahavi <YoramZ@gilian.com>).
4703 *) Add information about CygWin 1.3 and on, and preserve proper
4704 configuration for the versions before that.
4705 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
4707 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
4708 check whether we deal with a copy of a session and do not delete from
4709 the cache in this case. Problem reported by "Izhar Shoshani Levi"
4710 <izhar@checkpoint.com>.
4713 *) Do not store session data into the internal session cache, if it
4714 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
4715 flag is set). Proposed by Aslam <aslam@funk.com>.
4718 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
4722 *) [In 0.9.6d-engine release:]
4723 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4724 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4726 *) Add the configuration target linux-s390x.
4727 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
4729 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
4730 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
4731 variable as an indication that a ClientHello message has been
4732 received. As the flag value will be lost between multiple
4733 invocations of ssl3_accept when using non-blocking I/O, the
4734 function may not be aware that a handshake has actually taken
4735 place, thus preventing a new session from being added to the
4738 To avoid this problem, we now set s->new_session to 2 instead of
4739 using a local variable.
4740 [Lutz Jaenicke, Bodo Moeller]
4742 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
4743 if the SSL_R_LENGTH_MISMATCH error is detected.
4744 [Geoff Thorpe, Bodo Moeller]
4746 *) New 'shared_ldflag' column in Configure platform table.
4749 *) Fix EVP_CIPHER_mode macro.
4750 ["Dan S. Camper" <dan@bti.net>]
4752 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
4753 type, we must throw them away by setting rr->length to 0.
4754 [D P Chang <dpc@qualys.com>]
4756 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
4758 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
4759 <Dominikus.Scherkl@biodata.com>. (The previous implementation
4760 worked incorrectly for those cases where range = 10..._2 and
4761 3*range is two bits longer than range.)
4764 *) Only add signing time to PKCS7 structures if it is not already
4768 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
4769 OBJ_ld_ce should be OBJ_id_ce.
4770 Also some ip-pda OIDs in crypto/objects/objects.txt were
4771 incorrect (cf. RFC 3039).
4772 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
4774 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
4775 returns early because it has nothing to do.
4776 [Andy Schneider <andy.schneider@bjss.co.uk>]
4778 *) [In 0.9.6c-engine release:]
4779 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
4780 [Andy Schneider <andy.schneider@bjss.co.uk>]
4782 *) [In 0.9.6c-engine release:]
4783 Add support for Cryptographic Appliance's keyserver technology.
4784 (Use engine 'keyclient')
4785 [Cryptographic Appliances and Geoff Thorpe]
4787 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
4788 is called via tools/c89.sh because arguments have to be
4789 rearranged (all '-L' options must appear before the first object
4791 [Richard Shapiro <rshapiro@abinitio.com>]
4793 *) [In 0.9.6c-engine release:]
4794 Add support for Broadcom crypto accelerator cards, backported
4796 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
4798 *) [In 0.9.6c-engine release:]
4799 Add support for SureWare crypto accelerator cards from
4800 Baltimore Technologies. (Use engine 'sureware')
4801 [Baltimore Technologies and Mark Cox]
4803 *) [In 0.9.6c-engine release:]
4804 Add support for crypto accelerator cards from Accelerated
4805 Encryption Processing, www.aep.ie. (Use engine 'aep')
4806 [AEP Inc. and Mark Cox]
4808 *) Add a configuration entry for gcc on UnixWare.
4809 [Gary Benson <gbenson@redhat.com>]
4811 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
4812 messages are stored in a single piece (fixed-length part and
4813 variable-length part combined) and fix various bugs found on the way.
4816 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
4817 instead. BIO_gethostbyname() does not know what timeouts are
4818 appropriate, so entries would stay in cache even when they have
4820 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
4822 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
4823 faced with a pathologically small ClientHello fragment that does
4824 not contain client_version: Instead of aborting with an error,
4825 simply choose the highest available protocol version (i.e.,
4826 TLS 1.0 unless it is disabled). In practice, ClientHello
4827 messages are never sent like this, but this change gives us
4828 strictly correct behaviour at least for TLS.
4831 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
4832 never resets s->method to s->ctx->method when called from within
4833 one of the SSL handshake functions.
4834 [Bodo Moeller; problem pointed out by Niko Baric]
4836 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
4837 (sent using the client's version number) if client_version is
4838 smaller than the protocol version in use. Also change
4839 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
4840 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
4841 the client will at least see that alert.
4844 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
4848 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
4849 client receives HelloRequest while in a handshake.
4850 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
4852 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
4853 should end in 'break', not 'goto end' which circuments various
4854 cleanups done in state SSL_ST_OK. But session related stuff
4855 must be disabled for SSL_ST_OK in the case that we just sent a
4858 Also avoid some overhead by not calling ssl_init_wbio_buffer()
4859 before just sending a HelloRequest.
4860 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
4862 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
4863 reveal whether illegal block cipher padding was found or a MAC
4864 verification error occured. (Neither SSLerr() codes nor alerts
4865 are directly visible to potential attackers, but the information
4866 may leak via logfiles.)
4868 Similar changes are not required for the SSL 2.0 implementation
4869 because the number of padding bytes is sent in clear for SSL 2.0,
4870 and the extra bytes are just ignored. However ssl/s2_pkt.c
4871 failed to verify that the purported number of padding bytes is in
4875 *) Add OpenUNIX-8 support including shared libraries
4876 (Boyd Lynn Gerber <gerberb@zenez.com>).
4879 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
4880 'wristwatch attack' using huge encoding parameters (cf.
4881 James H. Manger's CRYPTO 2001 paper). Note that the
4882 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
4883 encoding parameters and hence was not vulnerable.
4886 *) BN_sqr() bug fix.
4887 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
4889 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
4890 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
4891 followed by modular reduction.
4892 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
4894 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
4895 equivalent based on BN_pseudo_rand() instead of BN_rand().
4898 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
4899 This function was broken, as the check for a new client hello message
4900 to handle SGC did not allow these large messages.
4901 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
4904 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
4907 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
4908 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
4911 *) Rework the configuration and shared library support for Tru64 Unix.
4912 The configuration part makes use of modern compiler features and
4913 still retains old compiler behavior for those that run older versions
4914 of the OS. The shared library support part includes a variant that
4915 uses the RPATH feature, and is available through the special
4916 configuration target "alpha-cc-rpath", which will never be selected
4918 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
4920 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
4921 with the same message size as in ssl3_get_certificate_request().
4922 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
4923 messages might inadvertently be reject as too long.
4924 [Petr Lampa <lampa@fee.vutbr.cz>]
4926 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
4929 *) Modified SSL library such that the verify_callback that has been set
4930 specificly for an SSL object with SSL_set_verify() is actually being
4931 used. Before the change, a verify_callback set with this function was
4932 ignored and the verify_callback() set in the SSL_CTX at the time of
4933 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
4934 to allow the necessary settings.
4937 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
4938 explicitly to NULL, as at least on Solaris 8 this seems not always to be
4939 done automatically (in contradiction to the requirements of the C
4940 standard). This made problems when used from OpenSSH.
4943 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
4944 dh->length and always used
4946 BN_rand_range(priv_key, dh->p).
4948 BN_rand_range() is not necessary for Diffie-Hellman, and this
4949 specific range makes Diffie-Hellman unnecessarily inefficient if
4950 dh->length (recommended exponent length) is much smaller than the
4951 length of dh->p. We could use BN_rand_range() if the order of
4952 the subgroup was stored in the DH structure, but we only have
4957 BN_rand(priv_key, l, ...)
4959 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
4965 RSA_eay_public_encrypt
4966 RSA_eay_private_decrypt
4967 RSA_eay_private_encrypt (signing)
4968 RSA_eay_public_decrypt (signature verification)
4970 (default implementations for RSA_public_encrypt,
4971 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
4972 always reject numbers >= n.
4975 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
4976 to synchronize access to 'locking_thread'. This is necessary on
4977 systems where access to 'locking_thread' (an 'unsigned long'
4978 variable) is not atomic.
4981 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
4982 *before* setting the 'crypto_lock_rand' flag. The previous code had
4983 a race condition if 0 is a valid thread ID.
4984 [Travis Vitek <vitek@roguewave.com>]
4986 *) Add support for shared libraries under Irix.
4987 [Albert Chin-A-Young <china@thewrittenword.com>]
4989 *) Add configuration option to build on Linux on both big-endian and
4991 [Ralf Baechle <ralf@uni-koblenz.de>]
4993 *) Add the possibility to create shared libraries on HP-UX.
4996 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
4998 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
4999 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
5000 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
5001 PRNG state recovery was possible based on the output of
5002 one PRNG request appropriately sized to gain knowledge on
5003 'md' followed by enough consecutive 1-byte PRNG requests
5004 to traverse all of 'state'.
5006 1. When updating 'md_local' (the current thread's copy of 'md')
5007 during PRNG output generation, hash all of the previous
5008 'md_local' value, not just the half used for PRNG output.
5010 2. Make the number of bytes from 'state' included into the hash
5011 independent from the number of PRNG bytes requested.
5013 The first measure alone would be sufficient to avoid
5014 Markku-Juhani's attack. (Actually it had never occurred
5015 to me that the half of 'md_local' used for chaining was the
5016 half from which PRNG output bytes were taken -- I had always
5017 assumed that the secret half would be used.) The second
5018 measure makes sure that additional data from 'state' is never
5019 mixed into 'md_local' in small portions; this heuristically
5020 further strengthens the PRNG.
5023 *) Fix crypto/bn/asm/mips3.s.
5026 *) When only the key is given to "enc", the IV is undefined. Print out
5027 an error message in this case.
5030 *) Handle special case when X509_NAME is empty in X509 printing routines.
5033 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
5034 positive and less than q.
5037 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
5038 used: it isn't thread safe and the add_lock_callback should handle
5040 [Paul Rose <Paul.Rose@bridge.com>]
5042 *) Verify that incoming data obeys the block size in
5043 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
5047 [Ulf Möller, Bodo Möller]
5049 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
5050 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
5051 when fixing the server behaviour for backwards-compatible 'client
5052 hello' messages. (Note that the attack is impractical against
5053 SSL 3.0 and TLS 1.0 anyway because length and version checking
5054 means that the probability of guessing a valid ciphertext is
5055 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
5058 Before 0.9.5, the countermeasure (hide the error by generating a
5059 random 'decryption result') did not work properly because
5060 ERR_clear_error() was missing, meaning that SSL_get_error() would
5061 detect the supposedly ignored error.
5063 Both problems are now fixed.
5066 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
5067 (previously it was 1024).
5070 *) Fix for compatibility mode trust settings: ignore trust settings
5071 unless some valid trust or reject settings are present.
5074 *) Fix for blowfish EVP: its a variable length cipher.
5077 *) Fix various bugs related to DSA S/MIME verification. Handle missing
5078 parameters in DSA public key structures and return an error in the
5079 DSA routines if parameters are absent.
5082 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
5083 in the current directory if neither $RANDFILE nor $HOME was set.
5084 RAND_file_name() in 0.9.6a returned NULL in this case. This has
5085 caused some confusion to Windows users who haven't defined $HOME.
5086 Thus RAND_file_name() is changed again: e_os.h can define a
5087 DEFAULT_HOME, which will be used if $HOME is not set.
5088 For Windows, we use "C:"; on other platforms, we still require
5089 environment variables.
5091 *) Move 'if (!initialized) RAND_poll()' into regions protected by
5092 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
5093 having multiple threads call RAND_poll() concurrently.
5096 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
5097 combination of a flag and a thread ID variable.
5098 Otherwise while one thread is in ssleay_rand_bytes (which sets the
5099 flag), *other* threads can enter ssleay_add_bytes without obeying
5100 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
5101 that they do not hold after the first thread unsets add_do_not_lock).
5104 *) Change bctest again: '-x' expressions are not available in all
5108 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
5110 *) Fix a couple of memory leaks in PKCS7_dataDecode()
5111 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
5113 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
5114 the default extension for executables, if any. Also, make the perl
5115 scripts that use symlink() to test if it really exists and use "cp"
5116 if it doesn't. All this made OpenSSL compilable and installable in
5120 *) Fix for asn1_GetSequence() for indefinite length constructed data.
5121 If SEQUENCE is length is indefinite just set c->slen to the total
5122 amount of data available.
5123 [Steve Henson, reported by shige@FreeBSD.org]
5124 [This change does not apply to 0.9.7.]
5126 *) Change bctest to avoid here-documents inside command substitution
5127 (workaround for FreeBSD /bin/sh bug).
5128 For compatibility with Ultrix, avoid shell functions (introduced
5129 in the bctest version that searches along $PATH).
5132 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
5133 with des_encrypt() defined on some operating systems, like Solaris
5137 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
5138 On the Importance of Eliminating Errors in Cryptographic
5139 Computations, J. Cryptology 14 (2001) 2, 101-119,
5140 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
5143 *) MIPS assembler BIGNUM division bug fix.
5146 *) Disabled incorrect Alpha assembler code.
5149 *) Fix PKCS#7 decode routines so they correctly update the length
5150 after reading an EOC for the EXPLICIT tag.
5152 [This change does not apply to 0.9.7.]
5154 *) Fix bug in PKCS#12 key generation routines. This was triggered
5155 if a 3DES key was generated with a 0 initial byte. Include
5156 PKCS12_BROKEN_KEYGEN compilation option to retain the old
5157 (but broken) behaviour.
5160 *) Enhance bctest to search for a working bc along $PATH and print
5162 [Tim Rice <tim@multitalents.net> via Richard Levitte]
5164 *) Fix memory leaks in err.c: free err_data string if necessary;
5165 don't write to the wrong index in ERR_set_error_data.
5168 *) Implement ssl23_peek (analogous to ssl23_read), which previously
5172 *) Replace rdtsc with _emit statements for VC++ version 5.
5173 [Jeremy Cooper <jeremy@baymoo.org>]
5175 *) Make it possible to reuse SSLv2 sessions.
5178 *) In copy_email() check for >= 0 as a return value for
5179 X509_NAME_get_index_by_NID() since 0 is a valid index.
5180 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
5182 *) Avoid coredump with unsupported or invalid public keys by checking if
5183 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
5184 PKCS7_verify() fails with non detached data.
5187 *) Don't use getenv in library functions when run as setuid/setgid.
5188 New function OPENSSL_issetugid().
5191 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
5192 due to incorrect handling of multi-threading:
5194 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
5196 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
5198 3. Count how many times MemCheck_off() has been called so that
5199 nested use can be treated correctly. This also avoids
5200 inband-signalling in the previous code (which relied on the
5201 assumption that thread ID 0 is impossible).
5204 *) Add "-rand" option also to s_client and s_server.
5207 *) Fix CPU detection on Irix 6.x.
5208 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
5209 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5211 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
5214 [This change does not apply to 0.9.7.]
5216 *) Use the cached encoding of an X509_NAME structure rather than
5217 copying it. This is apparently the reason for the libsafe "errors"
5218 but the code is actually correct.
5221 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
5222 Bleichenbacher's DSA attack.
5223 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
5224 to be set and top=0 forces the highest bit to be set; top=-1 is new
5225 and leaves the highest bit random.
5226 [Ulf Moeller, Bodo Moeller]
5228 *) In the NCONF_...-based implementations for CONF_... queries
5229 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
5230 a temporary CONF structure with the data component set to NULL
5231 (which gives segmentation faults in lh_retrieve).
5232 Instead, use NULL for the CONF pointer in CONF_get_string and
5233 CONF_get_number (which may use environment variables) and directly
5234 return NULL from CONF_get_section.
5237 *) Fix potential buffer overrun for EBCDIC.
5240 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
5241 keyUsage if basicConstraints absent for a CA.
5244 *) Make SMIME_write_PKCS7() write mail header values with a format that
5245 is more generally accepted (no spaces before the semicolon), since
5246 some programs can't parse those values properly otherwise. Also make
5247 sure BIO's that break lines after each write do not create invalid
5251 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
5252 macros previously used would not encode an empty SEQUENCE OF
5253 and break the signature.
5255 [This change does not apply to 0.9.7.]
5257 *) Zero the premaster secret after deriving the master secret in
5261 *) Add some EVP_add_digest_alias registrations (as found in
5262 OpenSSL_add_all_digests()) to SSL_library_init()
5263 aka OpenSSL_add_ssl_algorithms(). This provides improved
5264 compatibility with peers using X.509 certificates
5265 with unconventional AlgorithmIdentifier OIDs.
5268 *) Fix for Irix with NO_ASM.
5269 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5271 *) ./config script fixes.
5272 [Ulf Moeller, Richard Levitte]
5274 *) Fix 'openssl passwd -1'.
5277 *) Change PKCS12_key_gen_asc() so it can cope with non null
5278 terminated strings whose length is passed in the passlen
5279 parameter, for example from PEM callbacks. This was done
5280 by adding an extra length parameter to asc2uni().
5281 [Steve Henson, reported by <oddissey@samsung.co.kr>]
5283 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
5284 call failed, free the DSA structure.
5287 *) Fix to uni2asc() to cope with zero length Unicode strings.
5288 These are present in some PKCS#12 files.
5291 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
5292 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
5293 when writing a 32767 byte record.
5294 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
5296 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
5297 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
5299 (RSA objects have a reference count access to which is protected
5300 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
5301 so they are meant to be shared between threads.)
5302 [Bodo Moeller, Geoff Thorpe; original patch submitted by
5303 "Reddie, Steven" <Steven.Reddie@ca.com>]
5305 *) Fix a deadlock in CRYPTO_mem_leaks().
5308 *) Use better test patterns in bntest.
5311 *) rand_win.c fix for Borland C.
5314 *) BN_rshift bugfix for n == 0.
5317 *) Add a 'bctest' script that checks for some known 'bc' bugs
5318 so that 'make test' does not abort just because 'bc' is broken.
5321 *) Store verify_result within SSL_SESSION also for client side to
5322 avoid potential security hole. (Re-used sessions on the client side
5323 always resulted in verify_result==X509_V_OK, not using the original
5324 result of the server certificate verification.)
5327 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
5328 SSL3_RT_APPLICATION_DATA, return 0.
5329 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
5333 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
5334 releases, have been re-implemented by renaming the previous
5335 implementations of ssl2_read and ssl3_read to ssl2_read_internal
5336 and ssl3_read_internal, respectively, and adding 'peek' parameters
5337 to them. The new ssl[23]_{read,peek} functions are calls to
5338 ssl[23]_read_internal with the 'peek' flag set appropriately.
5339 A 'peek' parameter has also been added to ssl3_read_bytes, which
5340 does the actual work for ssl3_read_internal.
5343 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
5344 the method-specific "init()" handler. Also clean up ex_data after
5345 calling the method-specific "finish()" handler. Previously, this was
5346 happening the other way round.
5349 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
5350 The previous value, 12, was not always sufficient for BN_mod_exp().
5353 *) Make sure that shared libraries get the internal name engine with
5354 the full version number and not just 0. This should mark the
5355 shared libraries as not backward compatible. Of course, this should
5356 be changed again when we can guarantee backward binary compatibility.
5359 *) Fix typo in get_cert_by_subject() in by_dir.c
5360 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
5362 *) Rework the system to generate shared libraries:
5364 - Make note of the expected extension for the shared libraries and
5365 if there is a need for symbolic links from for example libcrypto.so.0
5366 to libcrypto.so.0.9.7. There is extended info in Configure for
5369 - Make as few rebuilds of the shared libraries as possible.
5371 - Still avoid linking the OpenSSL programs with the shared libraries.
5373 - When installing, install the shared libraries separately from the
5377 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
5379 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
5380 and not in SSL_clear because the latter is also used by the
5381 accept/connect functions; previously, the settings made by
5382 SSL_set_read_ahead would be lost during the handshake.
5383 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
5385 *) Correct util/mkdef.pl to be selective about disabled algorithms.
5386 Previously, it would create entries for disableed algorithms no
5390 *) Added several new manual pages for SSL_* function.
5393 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
5395 *) In ssl23_get_client_hello, generate an error message when faced
5396 with an initial SSL 3.0/TLS record that is too small to contain the
5397 first two bytes of the ClientHello message, i.e. client_version.
5398 (Note that this is a pathologic case that probably has never happened
5399 in real life.) The previous approach was to use the version number
5400 from the record header as a substitute; but our protocol choice
5401 should not depend on that one because it is not authenticated
5402 by the Finished messages.
5405 *) More robust randomness gathering functions for Windows.
5406 [Jeffrey Altman <jaltman@columbia.edu>]
5408 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
5409 not set then we don't setup the error code for issuer check errors
5410 to avoid possibly overwriting other errors which the callback does
5411 handle. If an application does set the flag then we assume it knows
5412 what it is doing and can handle the new informational codes
5416 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
5417 a general "ANY" type, as such it should be able to decode anything
5418 including tagged types. However it didn't check the class so it would
5419 wrongly interpret tagged types in the same way as their universal
5420 counterpart and unknown types were just rejected. Changed so that the
5421 tagged and unknown types are handled in the same way as a SEQUENCE:
5422 that is the encoding is stored intact. There is also a new type
5423 "V_ASN1_OTHER" which is used when the class is not universal, in this
5424 case we have no idea what the actual type is so we just lump them all
5428 *) On VMS, stdout may very well lead to a file that is written to
5429 in a record-oriented fashion. That means that every write() will
5430 write a separate record, which will be read separately by the
5431 programs trying to read from it. This can be very confusing.
5433 The solution is to put a BIO filter in the way that will buffer
5434 text until a linefeed is reached, and then write everything a
5435 line at a time, so every record written will be an actual line,
5436 not chunks of lines and not (usually doesn't happen, but I've
5437 seen it once) several lines in one record. BIO_f_linebuffer() is
5440 Currently, it's a VMS-only method, because that's where it has
5441 been tested well enough.
5444 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
5445 it can return incorrect results.
5446 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
5447 but it was in 0.9.6-beta[12].)
5450 *) Disable the check for content being present when verifying detached
5451 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
5452 include zero length content when signing messages.
5455 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
5456 BIO_ctrl (for BIO pairs).
5459 *) Add DSO method for VMS.
5462 *) Bug fix: Montgomery multiplication could produce results with the
5466 *) Add RPM specification openssl.spec and modify it to build three
5467 packages. The default package contains applications, application
5468 documentation and run-time libraries. The devel package contains
5469 include files, static libraries and function documentation. The
5470 doc package contains the contents of the doc directory. The original
5471 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
5474 *) Add a large number of documentation files for many SSL routines.
5475 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5477 *) Add a configuration entry for Sony News 4.
5478 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
5480 *) Don't set the two most significant bits to one when generating a
5481 random number < q in the DSA library.
5484 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
5485 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
5486 the underlying transport is blocking) if a handshake took place.
5487 (The default behaviour is needed by applications such as s_client
5488 and s_server that use select() to determine when to use SSL_read;
5489 but for applications that know in advance when to expect data, it
5490 just makes things more complicated.)
5493 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
5497 *) Add a few more EBCDIC conditionals that make `req' and `x509'
5498 work better on such systems.
5499 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
5501 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
5502 Update PKCS12_parse() so it copies the friendlyName and the
5503 keyid to the certificates aux info.
5506 *) Fix bug in PKCS7_verify() which caused an infinite loop
5507 if there was more than one signature.
5508 [Sven Uszpelkat <su@celocom.de>]
5510 *) Major change in util/mkdef.pl to include extra information
5511 about each symbol, as well as presentig variables as well
5512 as functions. This change means that there's n more need
5513 to rebuild the .num files when some algorithms are excluded.
5516 *) Allow the verify time to be set by an application,
5517 rather than always using the current time.
5520 *) Phase 2 verify code reorganisation. The certificate
5521 verify code now looks up an issuer certificate by a
5522 number of criteria: subject name, authority key id
5523 and key usage. It also verifies self signed certificates
5524 by the same criteria. The main comparison function is
5525 X509_check_issued() which performs these checks.
5527 Lot of changes were necessary in order to support this
5528 without completely rewriting the lookup code.
5530 Authority and subject key identifier are now cached.
5532 The LHASH 'certs' is X509_STORE has now been replaced
5533 by a STACK_OF(X509_OBJECT). This is mainly because an
5534 LHASH can't store or retrieve multiple objects with
5535 the same hash value.
5537 As a result various functions (which were all internal
5538 use only) have changed to handle the new X509_STORE
5539 structure. This will break anything that messed round
5540 with X509_STORE internally.
5542 The functions X509_STORE_add_cert() now checks for an
5543 exact match, rather than just subject name.
5545 The X509_STORE API doesn't directly support the retrieval
5546 of multiple certificates matching a given criteria, however
5547 this can be worked round by performing a lookup first
5548 (which will fill the cache with candidate certificates)
5549 and then examining the cache for matches. This is probably
5550 the best we can do without throwing out X509_LOOKUP
5551 entirely (maybe later...).
5553 The X509_VERIFY_CTX structure has been enhanced considerably.
5555 All certificate lookup operations now go via a get_issuer()
5556 callback. Although this currently uses an X509_STORE it
5557 can be replaced by custom lookups. This is a simple way
5558 to bypass the X509_STORE hackery necessary to make this
5559 work and makes it possible to use more efficient techniques
5560 in future. A very simple version which uses a simple
5561 STACK for its trusted certificate store is also provided
5562 using X509_STORE_CTX_trusted_stack().
5564 The verify_cb() and verify() callbacks now have equivalents
5565 in the X509_STORE_CTX structure.
5567 X509_STORE_CTX also has a 'flags' field which can be used
5568 to customise the verify behaviour.
5571 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
5572 excludes S/MIME capabilities.
5575 *) When a certificate request is read in keep a copy of the
5576 original encoding of the signed data and use it when outputing
5577 again. Signatures then use the original encoding rather than
5578 a decoded, encoded version which may cause problems if the
5579 request is improperly encoded.
5582 *) For consistency with other BIO_puts implementations, call
5583 buffer_write(b, ...) directly in buffer_puts instead of calling
5586 In BIO_puts, increment b->num_write as in BIO_write.
5587 [Peter.Sylvester@EdelWeb.fr]
5589 *) Fix BN_mul_word for the case where the word is 0. (We have to use
5590 BN_zero, we may not return a BIGNUM with an array consisting of
5594 *) Avoid calling abort() from within the library when problems are
5595 detected, except if preprocessor symbols have been defined
5596 (such as REF_CHECK, BN_DEBUG etc.).
5599 *) New openssl application 'rsautl'. This utility can be
5600 used for low level RSA operations. DER public key
5601 BIO/fp routines also added.
5604 *) New Configure entry and patches for compiling on QNX 4.
5605 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
5607 *) A demo state-machine implementation was sponsored by
5608 Nuron (http://www.nuron.com/) and is now available in
5609 demos/state_machine.
5612 *) New options added to the 'dgst' utility for signature
5613 generation and verification.
5616 *) Unrecognized PKCS#7 content types are now handled via a
5617 catch all ASN1_TYPE structure. This allows unsupported
5618 types to be stored as a "blob" and an application can
5619 encode and decode it manually.
5622 *) Fix various signed/unsigned issues to make a_strex.c
5624 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
5626 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
5627 length if passed a buffer. ASN1_INTEGER_to_BN failed
5628 if passed a NULL BN and its argument was negative.
5629 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
5631 *) Modification to PKCS#7 encoding routines to output definite
5632 length encoding. Since currently the whole structures are in
5633 memory there's not real point in using indefinite length
5634 constructed encoding. However if OpenSSL is compiled with
5635 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
5638 *) Added BIO_vprintf() and BIO_vsnprintf().
5641 *) Added more prefixes to parse for in the the strings written
5642 through a logging bio, to cover all the levels that are available
5643 through syslog. The prefixes are now:
5645 PANIC, EMERG, EMR => LOG_EMERG
5646 ALERT, ALR => LOG_ALERT
5647 CRIT, CRI => LOG_CRIT
5648 ERROR, ERR => LOG_ERR
5649 WARNING, WARN, WAR => LOG_WARNING
5650 NOTICE, NOTE, NOT => LOG_NOTICE
5651 INFO, INF => LOG_INFO
5652 DEBUG, DBG => LOG_DEBUG
5654 and as before, if none of those prefixes are present at the
5655 beginning of the string, LOG_ERR is chosen.
5657 On Win32, the LOG_* levels are mapped according to this:
5659 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
5660 LOG_WARNING => EVENTLOG_WARNING_TYPE
5661 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
5665 *) Made it possible to reconfigure with just the configuration
5666 argument "reconf" or "reconfigure". The command line arguments
5667 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
5668 and are retrieved from there when reconfiguring.
5672 [Assar Westerlund <assar@sics.se>, Richard Levitte]
5674 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
5677 *) The obj_dat.pl script was messing up the sorting of object
5678 names. The reason was that it compared the quoted version
5679 of strings as a result "OCSP" > "OCSP Signing" because
5680 " > SPACE. Changed script to store unquoted versions of
5681 names and add quotes on output. It was also omitting some
5682 names from the lookup table if they were given a default
5683 value (that is if SN is missing it is given the same
5684 value as LN and vice versa), these are now added on the
5685 grounds that if an object has a name we should be able to
5686 look it up. Finally added warning output when duplicate
5687 short or long names are found.
5690 *) Changes needed for Tandem NSK.
5691 [Scott Uroff <scott@xypro.com>]
5693 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
5694 RSA_padding_check_SSLv23(), special padding was never detected
5695 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
5696 version rollback attacks was not effective.
5698 In s23_clnt.c, don't use special rollback-attack detection padding
5699 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
5700 client; similarly, in s23_srvr.c, don't do the rollback check if
5701 SSL 2.0 is the only protocol enabled in the server.
5704 *) Make it possible to get hexdumps of unprintable data with 'openssl
5705 asn1parse'. By implication, the functions ASN1_parse_dump() and
5706 BIO_dump_indent() are added.
5709 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
5710 these print out strings and name structures based on various
5711 flags including RFC2253 support and proper handling of
5712 multibyte characters. Added options to the 'x509' utility
5713 to allow the various flags to be set.
5716 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
5717 Also change the functions X509_cmp_current_time() and
5718 X509_gmtime_adj() work with an ASN1_TIME structure,
5719 this will enable certificates using GeneralizedTime in validity
5720 dates to be checked.
5723 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
5724 negative public key encodings) on by default,
5725 NO_NEG_PUBKEY_BUG can be set to disable it.
5728 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
5729 content octets. An i2c_ASN1_OBJECT is unnecessary because
5730 the encoding can be trivially obtained from the structure.
5733 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
5734 not read locks (CRYPTO_r_[un]lock).
5737 *) A first attempt at creating official support for shared
5738 libraries through configuration. I've kept it so the
5739 default is static libraries only, and the OpenSSL programs
5740 are always statically linked for now, but there are
5741 preparations for dynamic linking in place.
5742 This has been tested on Linux and Tru64.
5745 *) Randomness polling function for Win9x, as described in:
5746 Peter Gutmann, Software Generation of Practically Strong
5750 *) Fix so PRNG is seeded in req if using an already existing
5754 *) New options to smime application. -inform and -outform
5755 allow alternative formats for the S/MIME message including
5756 PEM and DER. The -content option allows the content to be
5757 specified separately. This should allow things like Netscape
5758 form signing output easier to verify.
5761 *) Fix the ASN1 encoding of tags using the 'long form'.
5764 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
5765 STRING types. These convert content octets to and from the
5766 underlying type. The actual tag and length octets are
5767 already assumed to have been read in and checked. These
5768 are needed because all other string types have virtually
5769 identical handling apart from the tag. By having versions
5770 of the ASN1 functions that just operate on content octets
5771 IMPLICIT tagging can be handled properly. It also allows
5772 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
5773 and ASN1_INTEGER are identical apart from the tag.
5776 *) Change the handling of OID objects as follows:
5778 - New object identifiers are inserted in objects.txt, following
5779 the syntax given in objects.README.
5780 - objects.pl is used to process obj_mac.num and create a new
5782 - obj_dat.pl is used to create a new obj_dat.h, using the data in
5785 This is currently kind of a hack, and the perl code in objects.pl
5786 isn't very elegant, but it works as I intended. The simplest way
5787 to check that it worked correctly is to look in obj_dat.h and
5788 check the array nid_objs and make sure the objects haven't moved
5789 around (this is important!). Additions are OK, as well as
5790 consistent name changes.
5793 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
5796 *) Addition of the command line parameter '-rand file' to 'openssl req'.
5797 The given file adds to whatever has already been seeded into the
5798 random pool through the RANDFILE configuration file option or
5799 environment variable, or the default random state file.
5802 *) mkstack.pl now sorts each macro group into lexical order.
5803 Previously the output order depended on the order the files
5804 appeared in the directory, resulting in needless rewriting
5808 *) Patches to make OpenSSL compile under Win32 again. Mostly
5809 work arounds for the VC++ problem that it treats func() as
5810 func(void). Also stripped out the parts of mkdef.pl that
5811 added extra typesafe functions: these no longer exist.
5814 *) Reorganisation of the stack code. The macros are now all
5815 collected in safestack.h . Each macro is defined in terms of
5816 a "stack macro" of the form SKM_<name>(type, a, b). The
5817 DEBUG_SAFESTACK is now handled in terms of function casts,
5818 this has the advantage of retaining type safety without the
5819 use of additional functions. If DEBUG_SAFESTACK is not defined
5820 then the non typesafe macros are used instead. Also modified the
5821 mkstack.pl script to handle the new form. Needs testing to see
5822 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
5823 the default if no major problems. Similar behaviour for ASN1_SET_OF
5824 and PKCS12_STACK_OF.
5827 *) When some versions of IIS use the 'NET' form of private key the
5828 key derivation algorithm is different. Normally MD5(password) is
5829 used as a 128 bit RC4 key. In the modified case
5830 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
5831 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
5832 as the old Netscape_RSA functions except they have an additional
5833 'sgckey' parameter which uses the modified algorithm. Also added
5834 an -sgckey command line option to the rsa utility. Thanks to
5835 Adrian Peck <bertie@ncipher.com> for posting details of the modified
5836 algorithm to openssl-dev.
5839 *) The evp_local.h macros were using 'c.##kname' which resulted in
5840 invalid expansion on some systems (SCO 5.0.5 for example).
5841 Corrected to 'c.kname'.
5842 [Phillip Porch <root@theporch.com>]
5844 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
5845 a STACK of email addresses from a certificate or request, these look
5846 in the subject name and the subject alternative name extensions and
5847 omit any duplicate addresses.
5850 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
5851 This makes DSA verification about 2 % faster.
5854 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
5855 (meaning that now 2^5 values will be precomputed, which is only 4 KB
5856 plus overhead for 1024 bit moduli).
5857 This makes exponentiations about 0.5 % faster for 1024 bit
5858 exponents (as measured by "openssl speed rsa2048").
5861 *) Rename memory handling macros to avoid conflicts with other
5863 Malloc => OPENSSL_malloc
5864 Malloc_locked => OPENSSL_malloc_locked
5865 Realloc => OPENSSL_realloc
5866 Free => OPENSSL_free
5869 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
5870 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
5873 *) CygWin32 support.
5874 [John Jarvie <jjarvie@newsguy.com>]
5876 *) The type-safe stack code has been rejigged. It is now only compiled
5877 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
5878 by default all type-specific stack functions are "#define"d back to
5879 standard stack functions. This results in more streamlined output
5880 but retains the type-safety checking possibilities of the original
5884 *) The STACK code has been cleaned up, and certain type declarations
5885 that didn't make a lot of sense have been brought in line. This has
5886 also involved a cleanup of sorts in safestack.h to more correctly
5887 map type-safe stack functions onto their plain stack counterparts.
5888 This work has also resulted in a variety of "const"ifications of
5889 lots of the code, especially "_cmp" operations which should normally
5890 be prototyped with "const" parameters anyway.
5893 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
5894 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
5895 (The PRNG state consists of two parts, the large pool 'state' and 'md',
5896 where all of 'md' is used each time the PRNG is used, but 'state'
5897 is used only indexed by a cyclic counter. As entropy may not be
5898 well distributed from the beginning, 'md' is important as a
5899 chaining variable. However, the output function chains only half
5900 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
5901 all of 'md', and seeding with STATE_SIZE dummy bytes will result
5902 in all of 'state' being rewritten, with the new values depending
5903 on virtually all of 'md'. This overcomes the 80 bit limitation.)
5906 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
5907 the handshake is continued after ssl_verify_cert_chain();
5908 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
5909 can lead to 'unexplainable' connection aborts later.
5910 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
5912 *) Major EVP API cipher revision.
5913 Add hooks for extra EVP features. This allows various cipher
5914 parameters to be set in the EVP interface. Support added for variable
5915 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
5916 setting of RC2 and RC5 parameters.
5918 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
5921 Remove lots of duplicated code from the EVP library. For example *every*
5922 cipher init() function handles the 'iv' in the same way according to the
5923 cipher mode. They also all do nothing if the 'key' parameter is NULL and
5924 for CFB and OFB modes they zero ctx->num.
5926 New functionality allows removal of S/MIME code RC2 hack.
5928 Most of the routines have the same form and so can be declared in terms
5931 By shifting this to the top level EVP_CipherInit() it can be removed from
5932 all individual ciphers. If the cipher wants to handle IVs or keys
5933 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
5936 Change lots of functions like EVP_EncryptUpdate() to now return a
5937 value: although software versions of the algorithms cannot fail
5938 any installed hardware versions can.
5941 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
5942 this option is set, tolerate broken clients that send the negotiated
5943 protocol version number instead of the requested protocol version
5947 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
5948 i.e. non-zero for export ciphersuites, zero otherwise.
5949 Previous versions had this flag inverted, inconsistent with
5950 rsa_tmp_cb (..._TMP_RSA_CB).
5951 [Bodo Moeller; problem reported by Amit Chopra]
5953 *) Add missing DSA library text string. Work around for some IIS
5954 key files with invalid SEQUENCE encoding.
5957 *) Add a document (doc/standards.txt) that list all kinds of standards
5958 and so on that are implemented in OpenSSL.
5961 *) Enhance c_rehash script. Old version would mishandle certificates
5962 with the same subject name hash and wouldn't handle CRLs at all.
5963 Added -fingerprint option to crl utility, to support new c_rehash
5967 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
5970 *) Fix for SSL server purpose checking. Server checking was
5971 rejecting certificates which had extended key usage present
5972 but no ssl client purpose.
5973 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
5975 *) Make PKCS#12 code work with no password. The PKCS#12 spec
5976 is a little unclear about how a blank password is handled.
5977 Since the password in encoded as a BMPString with terminating
5978 double NULL a zero length password would end up as just the
5979 double NULL. However no password at all is different and is
5980 handled differently in the PKCS#12 key generation code. NS
5981 treats a blank password as zero length. MSIE treats it as no
5982 password on export: but it will try both on import. We now do
5983 the same: PKCS12_parse() tries zero length and no password if
5984 the password is set to "" or NULL (NULL is now a valid password:
5985 it wasn't before) as does the pkcs12 application.
5988 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
5989 perror when PEM_read_bio_X509_REQ fails, the error message must
5990 be obtained from the error queue.
5993 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
5994 it in ERR_remove_state if appropriate, and change ERR_get_state
5995 accordingly to avoid race conditions (this is necessary because
5996 thread_hash is no longer constant once set).
5999 *) Bugfix for linux-elf makefile.one.
6002 *) RSA_get_default_method() will now cause a default
6003 RSA_METHOD to be chosen if one doesn't exist already.
6004 Previously this was only set during a call to RSA_new()
6005 or RSA_new_method(NULL) meaning it was possible for
6006 RSA_get_default_method() to return NULL.
6009 *) Added native name translation to the existing DSO code
6010 that will convert (if the flag to do so is set) filenames
6011 that are sufficiently small and have no path information
6012 into a canonical native form. Eg. "blah" converted to
6013 "libblah.so" or "blah.dll" etc.
6016 *) New function ERR_error_string_n(e, buf, len) which is like
6017 ERR_error_string(e, buf), but writes at most 'len' bytes
6018 including the 0 terminator. For ERR_error_string_n, 'buf'
6020 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
6022 *) CONF library reworked to become more general. A new CONF
6023 configuration file reader "class" is implemented as well as a
6024 new functions (NCONF_*, for "New CONF") to handle it. The now
6025 old CONF_* functions are still there, but are reimplemented to
6026 work in terms of the new functions. Also, a set of functions
6027 to handle the internal storage of the configuration data is
6028 provided to make it easier to write new configuration file
6029 reader "classes" (I can definitely see something reading a
6030 configuration file in XML format, for example), called _CONF_*,
6031 or "the configuration storage API"...
6033 The new configuration file reading functions are:
6035 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
6036 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
6038 NCONF_default, NCONF_WIN32
6040 NCONF_dump_fp, NCONF_dump_bio
6042 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
6043 NCONF_new creates a new CONF object. This works in the same way
6044 as other interfaces in OpenSSL, like the BIO interface.
6045 NCONF_dump_* dump the internal storage of the configuration file,
6046 which is useful for debugging. All other functions take the same
6047 arguments as the old CONF_* functions wth the exception of the
6048 first that must be a `CONF *' instead of a `LHASH *'.
6050 To make it easer to use the new classes with the old CONF_* functions,
6051 the function CONF_set_default_method is provided.
6054 *) Add '-tls1' option to 'openssl ciphers', which was already
6055 mentioned in the documentation but had not been implemented.
6056 (This option is not yet really useful because even the additional
6057 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
6060 *) Initial DSO code added into libcrypto for letting OpenSSL (and
6061 OpenSSL-based applications) load shared libraries and bind to
6062 them in a portable way.
6063 [Geoff Thorpe, with contributions from Richard Levitte]
6065 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
6067 *) Make sure _lrotl and _lrotr are only used with MSVC.
6069 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
6070 (the default implementation of RAND_status).
6072 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
6073 to '-clrext' (= clear extensions), as intended and documented.
6074 [Bodo Moeller; inconsistency pointed out by Michael Attili
6077 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
6078 was larger than the MD block size.
6079 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
6081 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
6082 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
6083 using the passed key: if the passed key was a private key the result
6084 of X509_print(), for example, would be to print out all the private key
6088 *) des_quad_cksum() byte order bug fix.
6089 [Ulf Möller, using the problem description in krb4-0.9.7, where
6090 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
6092 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
6094 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
6096 *) For easily testing in shell scripts whether some command
6097 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
6098 returns with exit code 0 iff no command of the given name is available.
6099 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
6100 the output goes to stdout and nothing is printed to stderr.
6101 Additional arguments are always ignored.
6103 Since for each cipher there is a command of the same name,
6104 the 'no-cipher' compilation switches can be tested this way.
6106 ('openssl no-XXX' is not able to detect pseudo-commands such
6107 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
6110 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
6113 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
6114 is set; it will be thrown away anyway because each handshake creates
6116 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
6117 to parameters -- in previous versions (since OpenSSL 0.9.3) the
6118 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
6119 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
6122 *) New s_client option -ign_eof: EOF at stdin is ignored, and
6123 'Q' and 'R' lose their special meanings (quit/renegotiate).
6124 This is part of what -quiet does; unlike -quiet, -ign_eof
6125 does not suppress any output.
6128 *) Add compatibility options to the purpose and trust code. The
6129 purpose X509_PURPOSE_ANY is "any purpose" which automatically
6130 accepts a certificate or CA, this was the previous behaviour,
6131 with all the associated security issues.
6133 X509_TRUST_COMPAT is the old trust behaviour: only and
6134 automatically trust self signed roots in certificate store. A
6135 new trust setting X509_TRUST_DEFAULT is used to specify that
6136 a purpose has no associated trust setting and it should instead
6137 use the value in the default purpose.
6140 *) Fix the PKCS#8 DSA private key code so it decodes keys again
6141 and fix a memory leak.
6144 *) In util/mkerr.pl (which implements 'make errors'), preserve
6145 reason strings from the previous version of the .c file, as
6146 the default to have only downcase letters (and digits) in
6147 automatically generated reasons codes is not always appropriate.
6150 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
6151 using strerror. Previously, ERR_reason_error_string() returned
6152 library names as reason strings for SYSerr; but SYSerr is a special
6153 case where small numbers are errno values, not library numbers.
6156 *) Add '-dsaparam' option to 'openssl dhparam' application. This
6157 converts DSA parameters into DH parameters. (When creating parameters,
6158 DSA_generate_parameters is used.)
6161 *) Include 'length' (recommended exponent length) in C code generated
6162 by 'openssl dhparam -C'.
6165 *) The second argument to set_label in perlasm was already being used
6166 so couldn't be used as a "file scope" flag. Moved to third argument
6170 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
6171 instead of RAND_bytes for encryption IVs and salts.
6174 *) Include RAND_status() into RAND_METHOD instead of implementing
6175 it only for md_rand.c Otherwise replacing the PRNG by calling
6176 RAND_set_rand_method would be impossible.
6179 *) Don't let DSA_generate_key() enter an infinite loop if the random
6180 number generation fails.
6183 *) New 'rand' application for creating pseudo-random output.
6186 *) Added configuration support for Linux/IA64
6187 [Rolf Haberrecker <rolf@suse.de>]
6189 *) Assembler module support for Mingw32.
6192 *) Shared library support for HPUX (in shlib/).
6193 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
6195 *) Shared library support for Solaris gcc.
6196 [Lutz Behnke <behnke@trustcenter.de>]
6198 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
6200 *) PKCS7_encrypt() was adding text MIME headers twice because they
6201 were added manually and by SMIME_crlf_copy().
6204 *) In bntest.c don't call BN_rand with zero bits argument.
6205 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
6207 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
6208 case was implemented. This caused BN_div_recp() to fail occasionally.
6211 *) Add an optional second argument to the set_label() in the perl
6212 assembly language builder. If this argument exists and is set
6213 to 1 it signals that the assembler should use a symbol whose
6214 scope is the entire file, not just the current function. This
6215 is needed with MASM which uses the format label:: for this scope.
6216 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
6218 *) Change the ASN1 types so they are typedefs by default. Before
6219 almost all types were #define'd to ASN1_STRING which was causing
6220 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
6224 *) Change names of new functions to the new get1/get0 naming
6225 convention: After 'get1', the caller owns a reference count
6226 and has to call ..._free; 'get0' returns a pointer to some
6227 data structure without incrementing reference counters.
6228 (Some of the existing 'get' functions increment a reference
6229 counter, some don't.)
6230 Similarly, 'set1' and 'add1' functions increase reference
6231 counters or duplicate objects.
6234 *) Allow for the possibility of temp RSA key generation failure:
6235 the code used to assume it always worked and crashed on failure.
6238 *) Fix potential buffer overrun problem in BIO_printf().
6239 [Ulf Möller, using public domain code by Patrick Powell; problem
6240 pointed out by David Sacerdote <das33@cornell.edu>]
6242 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
6243 RAND_egd() and RAND_status(). In the command line application,
6244 the EGD socket can be specified like a seed file using RANDFILE
6248 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
6249 Some CAs (e.g. Verisign) distribute certificates in this form.
6252 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
6253 list to exclude them. This means that no special compilation option
6254 is needed to use anonymous DH: it just needs to be included in the
6258 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
6259 EVP_MD_type. The old functionality is available in a new macro called
6260 EVP_MD_md(). Change code that uses it and update docs.
6263 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
6264 where the 'void *' argument is replaced by a function pointer argument.
6265 Previously 'void *' was abused to point to functions, which works on
6266 many platforms, but is not correct. As these functions are usually
6267 called by macros defined in OpenSSL header files, most source code
6268 should work without changes.
6271 *) <openssl/opensslconf.h> (which is created by Configure) now contains
6272 sections with information on -D... compiler switches used for
6273 compiling the library so that applications can see them. To enable
6274 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
6275 must be defined. E.g.,
6276 #define OPENSSL_ALGORITHM_DEFINES
6277 #include <openssl/opensslconf.h>
6278 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
6279 [Richard Levitte, Ulf and Bodo Möller]
6281 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
6285 *) Change the 'other' type in certificate aux info to a STACK_OF
6286 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
6287 the required ASN1 format: arbitrary types determined by an OID.
6290 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
6291 argument to 'req'. This is not because the function is newer or
6292 better than others it just uses the work 'NEW' in the certificate
6293 request header lines. Some software needs this.
6296 *) Reorganise password command line arguments: now passwords can be
6297 obtained from various sources. Delete the PEM_cb function and make
6298 it the default behaviour: i.e. if the callback is NULL and the
6299 usrdata argument is not NULL interpret it as a null terminated pass
6300 phrase. If usrdata and the callback are NULL then the pass phrase
6301 is prompted for as usual.
6304 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
6305 the support is automatically enabled. The resulting binaries will
6306 autodetect the card and use it if present.
6307 [Ben Laurie and Compaq Inc.]
6309 *) Work around for Netscape hang bug. This sends certificate request
6310 and server done in one record. Since this is perfectly legal in the
6311 SSL/TLS protocol it isn't a "bug" option and is on by default. See
6312 the bugs/SSLv3 entry for more info.
6315 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
6318 *) Add -rand argument to smime and pkcs12 applications and read/write
6322 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
6325 *) Add command line password options to the remaining applications.
6328 *) Bug fix for BN_div_recp() for numerators with an even number of
6332 *) More tests in bntest.c, and changed test_bn output.
6335 *) ./config recognizes MacOS X now.
6338 *) Bug fix for BN_div() when the first words of num and divsor are
6339 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
6342 *) Add support for various broken PKCS#8 formats, and command line
6343 options to produce them.
6346 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
6347 get temporary BIGNUMs from a BN_CTX.
6350 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
6354 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
6355 include a #define from the old name to the new. The original intent
6356 was that statically linked binaries could for example just call
6357 SSLeay_add_all_ciphers() to just add ciphers to the table and not
6358 link with digests. This never worked becayse SSLeay_add_all_digests()
6359 and SSLeay_add_all_ciphers() were in the same source file so calling
6360 one would link with the other. They are now in separate source files.
6363 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
6366 *) Use a less unusual form of the Miller-Rabin primality test (it used
6367 a binary algorithm for exponentiation integrated into the Miller-Rabin
6368 loop, our standard modexp algorithms are faster).
6371 *) Support for the EBCDIC character set completed.
6372 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
6374 *) Source code cleanups: use const where appropriate, eliminate casts,
6375 use void * instead of char * in lhash.
6378 *) Bugfix: ssl3_send_server_key_exchange was not restartable
6379 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
6380 this the server could overwrite ephemeral keys that the client
6384 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
6385 using 50 iterations of the Rabin-Miller test.
6387 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
6388 iterations of the Rabin-Miller test as required by the appendix
6389 to FIPS PUB 186[-1]) instead of DSA_is_prime.
6390 As BN_is_prime_fasttest includes trial division, DSA parameter
6391 generation becomes much faster.
6393 This implies a change for the callback functions in DSA_is_prime
6394 and DSA_generate_parameters: The callback function is called once
6395 for each positive witness in the Rabin-Miller test, not just
6396 occasionally in the inner loop; and the parameters to the
6397 callback function now provide an iteration count for the outer
6398 loop rather than for the current invocation of the inner loop.
6399 DSA_generate_parameters additionally can call the callback
6400 function with an 'iteration count' of -1, meaning that a
6401 candidate has passed the trial division test (when q is generated
6402 from an application-provided seed, trial division is skipped).
6405 *) New function BN_is_prime_fasttest that optionally does trial
6406 division before starting the Rabin-Miller test and has
6407 an additional BN_CTX * argument (whereas BN_is_prime always
6408 has to allocate at least one BN_CTX).
6409 'callback(1, -1, cb_arg)' is called when a number has passed the
6410 trial division stage.
6413 *) Fix for bug in CRL encoding. The validity dates weren't being handled
6417 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
6420 *) New function BN_pseudo_rand().
6423 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
6424 bignum version of BN_from_montgomery() with the working code from
6425 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
6429 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
6430 made it impossible to use the same SSL_SESSION data structure in
6431 SSL2 clients in multiple threads.
6434 *) The return value of RAND_load_file() no longer counts bytes obtained
6435 by stat(). RAND_load_file(..., -1) is new and uses the complete file
6436 to seed the PRNG (previously an explicit byte count was required).
6437 [Ulf Möller, Bodo Möller]
6439 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
6440 used (char *) instead of (void *) and had casts all over the place.
6443 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
6446 *) Retain source code compatibility for BN_prime_checks macro:
6447 BN_is_prime(..., BN_prime_checks, ...) now uses
6448 BN_prime_checks_for_size to determine the appropriate number of
6449 Rabin-Miller iterations.
6452 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
6453 DH_CHECK_P_NOT_SAFE_PRIME.
6454 (Check if this is true? OpenPGP calls them "strong".)
6457 *) Merge the functionality of "dh" and "gendh" programs into a new program
6458 "dhparam". The old programs are retained for now but will handle DH keys
6459 (instead of parameters) in future.
6462 *) Make the ciphers, s_server and s_client programs check the return values
6463 when a new cipher list is set.
6466 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
6467 ciphers. Before when the 56bit ciphers were enabled the sorting was
6470 The syntax for the cipher sorting has been extended to support sorting by
6471 cipher-strength (using the strength_bits hard coded in the tables).
6472 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
6474 Fix a bug in the cipher-command parser: when supplying a cipher command
6475 string with an "undefined" symbol (neither command nor alphanumeric
6476 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
6477 an error is flagged.
6479 Due to the strength-sorting extension, the code of the
6480 ssl_create_cipher_list() function was completely rearranged. I hope that
6481 the readability was also increased :-)
6482 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6484 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
6485 for the first serial number and places 2 in the serial number file. This
6486 avoids problems when the root CA is created with serial number zero and
6487 the first user certificate has the same issuer name and serial number
6491 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
6492 the new code. Add documentation for this stuff.
6495 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
6496 X509_*() to X509at_*() on the grounds that they don't handle X509
6497 structures and behave in an analagous way to the X509v3 functions:
6498 they shouldn't be called directly but wrapper functions should be used
6501 So we also now have some wrapper functions that call the X509at functions
6502 when passed certificate requests. (TO DO: similar things can be done with
6503 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
6504 things. Some of these need some d2i or i2d and print functionality
6505 because they handle more complex structures.)
6508 *) Add missing #ifndefs that caused missing symbols when building libssl
6509 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
6510 NO_RSA in ssl/s2*.c.
6511 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
6513 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
6514 has a return value which indicates the quality of the random data
6515 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
6516 error queue. New function RAND_pseudo_bytes() generates output that is
6517 guaranteed to be unique but not unpredictable. RAND_add is like
6518 RAND_seed, but takes an extra argument for an entropy estimate
6519 (RAND_seed always assumes full entropy).
6522 *) Do more iterations of Rabin-Miller probable prime test (specifically,
6523 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
6524 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
6525 in crypto/bn/bn_prime.c for the complete table). This guarantees a
6526 false-positive rate of at most 2^-80 for random input.
6529 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
6532 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
6533 in the 0.9.5 release), this returns the chain
6534 from an X509_CTX structure with a dup of the stack and all
6535 the X509 reference counts upped: so the stack will exist
6536 after X509_CTX_cleanup() has been called. Modify pkcs12.c
6539 Also make SSL_SESSION_print() print out the verify return
6543 *) Add manpage for the pkcs12 command. Also change the default
6544 behaviour so MAC iteration counts are used unless the new
6545 -nomaciter option is used. This improves file security and
6546 only older versions of MSIE (4.0 for example) need it.
6549 *) Honor the no-xxx Configure options when creating .DEF files.
6552 *) Add PKCS#10 attributes to field table: challengePassword,
6553 unstructuredName and unstructuredAddress. These are taken from
6554 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
6555 international characters are used.
6557 More changes to X509_ATTRIBUTE code: allow the setting of types
6558 based on strings. Remove the 'loc' parameter when adding
6559 attributes because these will be a SET OF encoding which is sorted
6563 *) Initial changes to the 'req' utility to allow request generation
6564 automation. This will allow an application to just generate a template
6565 file containing all the field values and have req construct the
6568 Initial support for X509_ATTRIBUTE handling. Stacks of these are
6569 used all over the place including certificate requests and PKCS#7
6570 structures. They are currently handled manually where necessary with
6571 some primitive wrappers for PKCS#7. The new functions behave in a
6572 manner analogous to the X509 extension functions: they allow
6573 attributes to be looked up by NID and added.
6575 Later something similar to the X509V3 code would be desirable to
6576 automatically handle the encoding, decoding and printing of the
6577 more complex types. The string types like challengePassword can
6578 be handled by the string table functions.
6580 Also modified the multi byte string table handling. Now there is
6581 a 'global mask' which masks out certain types. The table itself
6582 can use the flag STABLE_NO_MASK to ignore the mask setting: this
6583 is useful when for example there is only one permissible type
6584 (as in countryName) and using the mask might result in no valid
6588 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
6589 SSL_get_peer_finished to allow applications to obtain the latest
6590 Finished messages sent to the peer or expected from the peer,
6591 respectively. (SSL_get_peer_finished is usually the Finished message
6592 actually received from the peer, otherwise the protocol will be aborted.)
6594 As the Finished message are message digests of the complete handshake
6595 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
6596 be used for external authentication procedures when the authentication
6597 provided by SSL/TLS is not desired or is not enough.
6600 *) Enhanced support for Alpha Linux is added. Now ./config checks if
6601 the host supports BWX extension and if Compaq C is present on the
6602 $PATH. Just exploiting of the BWX extension results in 20-30%
6603 performance kick for some algorithms, e.g. DES and RC4 to mention
6604 a couple. Compaq C in turn generates ~20% faster code for MD5 and
6608 *) Add support for MS "fast SGC". This is arguably a violation of the
6609 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
6610 weak crypto and after checking the certificate is SGC a second one
6611 with strong crypto. MS SGC stops the first handshake after receiving
6612 the server certificate message and sends a second client hello. Since
6613 a server will typically do all the time consuming operations before
6614 expecting any further messages from the client (server key exchange
6615 is the most expensive) there is little difference between the two.
6617 To get OpenSSL to support MS SGC we have to permit a second client
6618 hello message after we have sent server done. In addition we have to
6619 reset the MAC if we do get this second client hello.
6622 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
6623 if a DER encoded private key is RSA or DSA traditional format. Changed
6624 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
6625 format DER encoded private key. Newer code should use PKCS#8 format which
6626 has the key type encoded in the ASN1 structure. Added DER private key
6627 support to pkcs8 application.
6630 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
6631 ciphersuites has been selected (as required by the SSL 3/TLS 1
6632 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
6633 is set, we interpret this as a request to violate the specification
6634 (the worst that can happen is a handshake failure, and 'correct'
6635 behaviour would result in a handshake failure anyway).
6638 *) In SSL_CTX_add_session, take into account that there might be multiple
6639 SSL_SESSION structures with the same session ID (e.g. when two threads
6640 concurrently obtain them from an external cache).
6641 The internal cache can handle only one SSL_SESSION with a given ID,
6642 so if there's a conflict, we now throw out the old one to achieve
6646 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
6647 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
6648 some routines that use cipher OIDs: some ciphers do not have OIDs
6649 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
6653 *) Simplify the trust setting structure and code. Now we just have
6654 two sequences of OIDs for trusted and rejected settings. These will
6655 typically have values the same as the extended key usage extension
6656 and any application specific purposes.
6658 The trust checking code now has a default behaviour: it will just
6659 check for an object with the same NID as the passed id. Functions can
6660 be provided to override either the default behaviour or the behaviour
6661 for a given id. SSL client, server and email already have functions
6662 in place for compatibility: they check the NID and also return "trusted"
6663 if the certificate is self signed.
6666 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
6667 traditional format into an EVP_PKEY structure.
6670 *) Add a password callback function PEM_cb() which either prompts for
6671 a password if usr_data is NULL or otherwise assumes it is a null
6672 terminated password. Allow passwords to be passed on command line
6673 environment or config files in a few more utilities.
6676 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
6677 keys. Add some short names for PKCS#8 PBE algorithms and allow them
6678 to be specified on the command line for the pkcs8 and pkcs12 utilities.
6679 Update documentation.
6682 *) Support for ASN1 "NULL" type. This could be handled before by using
6683 ASN1_TYPE but there wasn't any function that would try to read a NULL
6684 and produce an error if it couldn't. For compatibility we also have
6685 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
6686 don't allocate anything because they don't need to.
6689 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
6691 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
6693 *) Rebuild of the memory allocation routines used by OpenSSL code and
6694 possibly others as well. The purpose is to make an interface that
6695 provide hooks so anyone can build a separate set of allocation and
6696 deallocation routines to be used by OpenSSL, for example memory
6697 pool implementations, or something else, which was previously hard
6698 since Malloc(), Realloc() and Free() were defined as macros having
6699 the values malloc, realloc and free, respectively (except for Win32
6700 compilations). The same is provided for memory debugging code.
6701 OpenSSL already comes with functionality to find memory leaks, but
6702 this gives people a chance to debug other memory problems.
6704 With these changes, a new set of functions and macros have appeared:
6706 CRYPTO_set_mem_debug_functions() [F]
6707 CRYPTO_get_mem_debug_functions() [F]
6708 CRYPTO_dbg_set_options() [F]
6709 CRYPTO_dbg_get_options() [F]
6710 CRYPTO_malloc_debug_init() [M]
6712 The memory debug functions are NULL by default, unless the library
6713 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
6714 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
6715 gives the standard debugging functions that come with OpenSSL) or
6716 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
6717 provided by the library user) must be used. When the standard
6718 debugging functions are used, CRYPTO_dbg_set_options can be used to
6719 request additional information:
6720 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
6721 the CRYPTO_MDEBUG_xxx macro when compiling the library.
6723 Also, things like CRYPTO_set_mem_functions will always give the
6724 expected result (the new set of functions is used for allocation
6725 and deallocation) at all times, regardless of platform and compiler
6728 To finish it up, some functions that were never use in any other
6729 way than through macros have a new API and new semantic:
6732 CRYPTO_dbg_realloc()
6735 All macros of value have retained their old syntax.
6736 [Richard Levitte and Bodo Moeller]
6738 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
6739 ordering of SMIMECapabilities wasn't in "strength order" and there
6740 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
6744 *) Some ASN1 types with illegal zero length encoding (INTEGER,
6745 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
6746 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
6748 *) Merge in my S/MIME library for OpenSSL. This provides a simple
6749 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
6750 functionality to handle multipart/signed properly) and a utility
6751 called 'smime' to call all this stuff. This is based on code I
6752 originally wrote for Celo who have kindly allowed it to be
6753 included in OpenSSL.
6756 *) Add variants des_set_key_checked and des_set_key_unchecked of
6757 des_set_key (aka des_key_sched). Global variable des_check_key
6758 decides which of these is called by des_set_key; this way
6759 des_check_key behaves as it always did, but applications and
6760 the library itself, which was buggy for des_check_key == 1,
6761 have a cleaner way to pick the version they need.
6764 *) New function PKCS12_newpass() which changes the password of a
6768 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
6769 dynamic mix. In both cases the ids can be used as an index into the
6770 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
6771 functions so they accept a list of the field values and the
6772 application doesn't need to directly manipulate the X509_TRUST
6776 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
6780 *) Modify the way the V3 extension code looks up extensions. This now
6781 works in a similar way to the object code: we have some "standard"
6782 extensions in a static table which is searched with OBJ_bsearch()
6783 and the application can add dynamic ones if needed. The file
6784 crypto/x509v3/ext_dat.h now has the info: this file needs to be
6785 updated whenever a new extension is added to the core code and kept
6786 in ext_nid order. There is a simple program 'tabtest.c' which checks
6787 this. New extensions are not added too often so this file can readily
6788 be maintained manually.
6790 There are two big advantages in doing things this way. The extensions
6791 can be looked up immediately and no longer need to be "added" using
6792 X509V3_add_standard_extensions(): this function now does nothing.
6793 [Side note: I get *lots* of email saying the extension code doesn't
6794 work because people forget to call this function]
6795 Also no dynamic allocation is done unless new extensions are added:
6796 so if we don't add custom extensions there is no need to call
6797 X509V3_EXT_cleanup().
6800 *) Modify enc utility's salting as follows: make salting the default. Add a
6801 magic header, so unsalted files fail gracefully instead of just decrypting
6802 to garbage. This is because not salting is a big security hole, so people
6803 should be discouraged from doing it.
6806 *) Fixes and enhancements to the 'x509' utility. It allowed a message
6807 digest to be passed on the command line but it only used this
6808 parameter when signing a certificate. Modified so all relevant
6809 operations are affected by the digest parameter including the
6810 -fingerprint and -x509toreq options. Also -x509toreq choked if a
6811 DSA key was used because it didn't fix the digest.
6814 *) Initial certificate chain verify code. Currently tests the untrusted
6815 certificates for consistency with the verify purpose (which is set
6816 when the X509_STORE_CTX structure is set up) and checks the pathlength.
6818 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
6819 this is because it will reject chains with invalid extensions whereas
6820 every previous version of OpenSSL and SSLeay made no checks at all.
6822 Trust code: checks the root CA for the relevant trust settings. Trust
6823 settings have an initial value consistent with the verify purpose: e.g.
6824 if the verify purpose is for SSL client use it expects the CA to be
6825 trusted for SSL client use. However the default value can be changed to
6826 permit custom trust settings: one example of this would be to only trust
6827 certificates from a specific "secure" set of CAs.
6829 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
6830 which should be used for version portability: especially since the
6831 verify structure is likely to change more often now.
6833 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
6834 to set them. If not set then assume SSL clients will verify SSL servers
6837 Two new options to the verify program: -untrusted allows a set of
6838 untrusted certificates to be passed in and -purpose which sets the
6839 intended purpose of the certificate. If a purpose is set then the
6840 new chain verify code is used to check extension consistency.
6843 *) Support for the authority information access extension.
6846 *) Modify RSA and DSA PEM read routines to transparently handle
6847 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
6848 public keys in a format compatible with certificate
6849 SubjectPublicKeyInfo structures. Unfortunately there were already
6850 functions called *_PublicKey_* which used various odd formats so
6851 these are retained for compatibility: however the DSA variants were
6852 never in a public release so they have been deleted. Changed dsa/rsa
6853 utilities to handle the new format: note no releases ever handled public
6854 keys so we should be OK.
6856 The primary motivation for this change is to avoid the same fiasco
6857 that dogs private keys: there are several incompatible private key
6858 formats some of which are standard and some OpenSSL specific and
6859 require various evil hacks to allow partial transparent handling and
6860 even then it doesn't work with DER formats. Given the option anything
6861 other than PKCS#8 should be dumped: but the other formats have to
6862 stay in the name of compatibility.
6864 With public keys and the benefit of hindsight one standard format
6865 is used which works with EVP_PKEY, RSA or DSA structures: though
6866 it clearly returns an error if you try to read the wrong kind of key.
6868 Added a -pubkey option to the 'x509' utility to output the public key.
6869 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
6870 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
6871 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
6872 that do the same as the EVP_PKEY_assign_*() except they up the
6873 reference count of the added key (they don't "swallow" the
6877 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
6878 CRLs would fail if the file contained no certificates or no CRLs:
6879 added a new function to read in both types and return the number
6880 read: this means that if none are read it will be an error. The
6881 DER versions of the certificate and CRL reader would always fail
6882 because it isn't possible to mix certificates and CRLs in DER format
6883 without choking one or the other routine. Changed this to just read
6884 a certificate: this is the best we can do. Also modified the code
6885 in apps/verify.c to take notice of return codes: it was previously
6886 attempting to read in certificates from NULL pointers and ignoring
6887 any errors: this is one reason why the cert and CRL reader seemed
6888 to work. It doesn't check return codes from the default certificate
6889 routines: these may well fail if the certificates aren't installed.
6892 *) Code to support otherName option in GeneralName.
6895 *) First update to verify code. Change the verify utility
6896 so it warns if it is passed a self signed certificate:
6897 for consistency with the normal behaviour. X509_verify
6898 has been modified to it will now verify a self signed
6899 certificate if *exactly* the same certificate appears
6900 in the store: it was previously impossible to trust a
6901 single self signed certificate. This means that:
6902 openssl verify ss.pem
6903 now gives a warning about a self signed certificate but
6904 openssl verify -CAfile ss.pem ss.pem
6908 *) For servers, store verify_result in SSL_SESSION data structure
6909 (and add it to external session representation).
6910 This is needed when client certificate verifications fails,
6911 but an application-provided verification callback (set by
6912 SSL_CTX_set_cert_verify_callback) allows accepting the session
6913 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
6914 but returns 1): When the session is reused, we have to set
6915 ssl->verify_result to the appropriate error code to avoid
6917 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
6919 *) Fix a bug in the new PKCS#7 code: it didn't consider the
6920 case in PKCS7_dataInit() where the signed PKCS7 structure
6921 didn't contain any existing data because it was being created.
6922 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
6924 *) Add a salt to the key derivation routines in enc.c. This
6925 forms the first 8 bytes of the encrypted file. Also add a
6926 -S option to allow a salt to be input on the command line.
6929 *) New function X509_cmp(). Oddly enough there wasn't a function
6930 to compare two certificates. We do this by working out the SHA1
6931 hash and comparing that. X509_cmp() will be needed by the trust
6935 *) SSL_get1_session() is like SSL_get_session(), but increments
6936 the reference count in the SSL_SESSION returned.
6937 [Geoff Thorpe <geoff@eu.c2.net>]
6939 *) Fix for 'req': it was adding a null to request attributes.
6940 Also change the X509_LOOKUP and X509_INFO code to handle
6941 certificate auxiliary information.
6944 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
6948 *) Add the possibility to add extra information to the memory leak
6949 detecting output, to form tracebacks, showing from where each
6950 allocation was originated: CRYPTO_push_info("constant string") adds
6951 the string plus current file name and line number to a per-thread
6952 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
6953 is like calling CYRPTO_pop_info() until the stack is empty.
6954 Also updated memory leak detection code to be multi-thread-safe.
6957 *) Add options -text and -noout to pkcs7 utility and delete the
6958 encryption options which never did anything. Update docs.
6961 *) Add options to some of the utilities to allow the pass phrase
6962 to be included on either the command line (not recommended on
6963 OSes like Unix) or read from the environment. Update the
6964 manpages and fix a few bugs.
6967 *) Add a few manpages for some of the openssl commands.
6970 *) Fix the -revoke option in ca. It was freeing up memory twice,
6971 leaking and not finding already revoked certificates.
6974 *) Extensive changes to support certificate auxiliary information.
6975 This involves the use of X509_CERT_AUX structure and X509_AUX
6976 functions. An X509_AUX function such as PEM_read_X509_AUX()
6977 can still read in a certificate file in the usual way but it
6978 will also read in any additional "auxiliary information". By
6979 doing things this way a fair degree of compatibility can be
6980 retained: existing certificates can have this information added
6981 using the new 'x509' options.
6983 Current auxiliary information includes an "alias" and some trust
6984 settings. The trust settings will ultimately be used in enhanced
6985 certificate chain verification routines: currently a certificate
6986 can only be trusted if it is self signed and then it is trusted
6990 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
6991 The problem was that one of the replacement routines had not been working
6992 since SSLeay releases. For now the offending routine has been replaced
6993 with non-optimised assembler. Even so, this now gives around 95%
6994 performance improvement for 1024 bit RSA signs.
6997 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
6998 handling. Most clients have the effective key size in bits equal to
6999 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
7000 A few however don't do this and instead use the size of the decrypted key
7001 to determine the RC2 key length and the AlgorithmIdentifier to determine
7002 the effective key length. In this case the effective key length can still
7003 be 40 bits but the key length can be 168 bits for example. This is fixed
7004 by manually forcing an RC2 key into the EVP_PKEY structure because the
7005 EVP code can't currently handle unusual RC2 key sizes: it always assumes
7006 the key length and effective key length are equal.
7009 *) Add a bunch of functions that should simplify the creation of
7010 X509_NAME structures. Now you should be able to do:
7011 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
7012 and have it automatically work out the correct field type and fill in
7013 the structures. The more adventurous can try:
7014 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
7015 and it will (hopefully) work out the correct multibyte encoding.
7018 *) Change the 'req' utility to use the new field handling and multibyte
7019 copy routines. Before the DN field creation was handled in an ad hoc
7020 way in req, ca, and x509 which was rather broken and didn't support
7021 BMPStrings or UTF8Strings. Since some software doesn't implement
7022 BMPStrings or UTF8Strings yet, they can be enabled using the config file
7023 using the dirstring_type option. See the new comment in the default
7024 openssl.cnf for more info.
7027 *) Make crypto/rand/md_rand.c more robust:
7028 - Assure unique random numbers after fork().
7029 - Make sure that concurrent threads access the global counter and
7030 md serializably so that we never lose entropy in them
7031 or use exactly the same state in multiple threads.
7032 Access to the large state is not always serializable because
7033 the additional locking could be a performance killer, and
7034 md should be large enough anyway.
7037 *) New file apps/app_rand.c with commonly needed functionality
7038 for handling the random seed file.
7040 Use the random seed file in some applications that previously did not:
7042 dsaparam -genkey (which also ignored its '-rand' option),
7045 x509 (when signing).
7046 Except on systems with /dev/urandom, it is crucial to have a random
7047 seed file at least for key creation, DSA signing, and for DH exchanges;
7048 for RSA signatures we could do without one.
7050 gendh and gendsa (unlike genrsa) used to read only the first byte
7051 of each file listed in the '-rand' option. The function as previously
7052 found in genrsa is now in app_rand.c and is used by all programs
7053 that support '-rand'.
7056 *) In RAND_write_file, use mode 0600 for creating files;
7057 don't just chmod when it may be too late.
7060 *) Report an error from X509_STORE_load_locations
7061 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
7064 *) New function ASN1_mbstring_copy() this copies a string in either
7065 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
7066 into an ASN1_STRING type. A mask of permissible types is passed
7067 and it chooses the "minimal" type to use or an error if not type
7071 *) Add function equivalents to the various macros in asn1.h. The old
7072 macros are retained with an M_ prefix. Code inside the library can
7073 use the M_ macros. External code (including the openssl utility)
7074 should *NOT* in order to be "shared library friendly".
7077 *) Add various functions that can check a certificate's extensions
7078 to see if it usable for various purposes such as SSL client,
7079 server or S/MIME and CAs of these types. This is currently
7080 VERY EXPERIMENTAL but will ultimately be used for certificate chain
7081 verification. Also added a -purpose flag to x509 utility to
7082 print out all the purposes.
7085 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
7089 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
7090 for, obtain and decode and extension and obtain its critical flag.
7091 This allows all the necessary extension code to be handled in a
7092 single function call.
7095 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
7096 platforms. See crypto/rc4/rc4_enc.c for further details.
7099 *) New -noout option to asn1parse. This causes no output to be produced
7100 its main use is when combined with -strparse and -out to extract data
7101 from a file (which may not be in ASN.1 format).
7104 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
7105 when producing the local key id.
7106 [Richard Levitte <levitte@stacken.kth.se>]
7108 *) New option -dhparam in s_server. This allows a DH parameter file to be
7109 stated explicitly. If it is not stated then it tries the first server
7110 certificate file. The previous behaviour hard coded the filename
7114 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
7115 a public key to be input or output. For example:
7116 openssl rsa -in key.pem -pubout -out pubkey.pem
7117 Also added necessary DSA public key functions to handle this.
7120 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
7121 in the message. This was handled by allowing
7122 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
7123 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
7125 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
7126 to the end of the strings whereas this didn't. This would cause problems
7127 if strings read with d2i_ASN1_bytes() were later modified.
7128 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
7130 *) Fix for base64 decode bug. When a base64 bio reads only one line of
7131 data and it contains EOF it will end up returning an error. This is
7132 caused by input 46 bytes long. The cause is due to the way base64
7133 BIOs find the start of base64 encoded data. They do this by trying a
7134 trial decode on each line until they find one that works. When they
7135 do a flag is set and it starts again knowing it can pass all the
7136 data directly through the decoder. Unfortunately it doesn't reset
7137 the context it uses. This means that if EOF is reached an attempt
7138 is made to pass two EOFs through the context and this causes the
7139 resulting error. This can also cause other problems as well. As is
7140 usual with these problems it takes *ages* to find and the fix is
7141 trivial: move one line.
7142 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
7144 *) Ugly workaround to get s_client and s_server working under Windows. The
7145 old code wouldn't work because it needed to select() on sockets and the
7146 tty (for keypresses and to see if data could be written). Win32 only
7147 supports select() on sockets so we select() with a 1s timeout on the
7148 sockets and then see if any characters are waiting to be read, if none
7149 are present then we retry, we also assume we can always write data to
7150 the tty. This isn't nice because the code then blocks until we've
7151 received a complete line of data and it is effectively polling the
7152 keyboard at 1s intervals: however it's quite a bit better than not
7153 working at all :-) A dedicated Windows application might handle this
7154 with an event loop for example.
7157 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
7158 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
7159 will be called when RSA_sign() and RSA_verify() are used. This is useful
7160 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
7161 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
7162 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
7163 This necessitated the support of an extra signature type NID_md5_sha1
7164 for SSL signatures and modifications to the SSL library to use it instead
7165 of calling RSA_public_decrypt() and RSA_private_encrypt().
7168 *) Add new -verify -CAfile and -CApath options to the crl program, these
7169 will lookup a CRL issuers certificate and verify the signature in a
7170 similar way to the verify program. Tidy up the crl program so it
7171 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
7172 less strict. It will now permit CRL extensions even if it is not
7173 a V2 CRL: this will allow it to tolerate some broken CRLs.
7176 *) Initialize all non-automatic variables each time one of the openssl
7177 sub-programs is started (this is necessary as they may be started
7178 multiple times from the "OpenSSL>" prompt).
7179 [Lennart Bang, Bodo Moeller]
7181 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
7182 removing all other RSA functionality (this is what NO_RSA does). This
7183 is so (for example) those in the US can disable those operations covered
7184 by the RSA patent while allowing storage and parsing of RSA keys and RSA
7188 *) Non-copying interface to BIO pairs.
7189 (still largely untested)
7192 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
7193 ASCII string. This was handled independently in various places before.
7196 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
7197 UTF8 strings a character at a time.
7200 *) Use client_version from client hello to select the protocol
7201 (s23_srvr.c) and for RSA client key exchange verification
7202 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
7205 *) Add various utility functions to handle SPKACs, these were previously
7206 handled by poking round in the structure internals. Added new function
7207 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
7208 print, verify and generate SPKACs. Based on an original idea from
7209 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
7212 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
7215 *) Allow the config file extension section to be overwritten on the
7216 command line. Based on an original idea from Massimiliano Pala
7217 <madwolf@comune.modena.it>. The new option is called -extensions
7218 and can be applied to ca, req and x509. Also -reqexts to override
7219 the request extensions in req and -crlexts to override the crl extensions
7223 *) Add new feature to the SPKAC handling in ca. Now you can include
7224 the same field multiple times by preceding it by "XXXX." for example:
7227 this is the same syntax as used in the req config file.
7230 *) Allow certificate extensions to be added to certificate requests. These
7231 are specified in a 'req_extensions' option of the req section of the
7232 config file. They can be printed out with the -text option to req but
7233 are otherwise ignored at present.
7236 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
7237 data read consists of only the final block it would not decrypted because
7238 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
7239 A misplaced 'break' also meant the decrypted final block might not be
7240 copied until the next read.
7243 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
7244 a few extra parameters to the DH structure: these will be useful if
7245 for example we want the value of 'q' or implement X9.42 DH.
7248 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
7249 provides hooks that allow the default DSA functions or functions on a
7250 "per key" basis to be replaced. This allows hardware acceleration and
7251 hardware key storage to be handled without major modification to the
7252 library. Also added low level modexp hooks and CRYPTO_EX structure and
7253 associated functions.
7256 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
7257 as "read only": it can't be written to and the buffer it points to will
7258 not be freed. Reading from a read only BIO is much more efficient than
7259 a normal memory BIO. This was added because there are several times when
7260 an area of memory needs to be read from a BIO. The previous method was
7261 to create a memory BIO and write the data to it, this results in two
7262 copies of the data and an O(n^2) reading algorithm. There is a new
7263 function BIO_new_mem_buf() which creates a read only memory BIO from
7264 an area of memory. Also modified the PKCS#7 routines to use read only
7268 *) Bugfix: ssl23_get_client_hello did not work properly when called in
7269 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
7270 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
7271 but a retry condition occured while trying to read the rest.
7274 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
7275 NID_pkcs7_encrypted by default: this was wrong since this should almost
7276 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
7277 the encrypted data type: this is a more sensible place to put it and it
7278 allows the PKCS#12 code to be tidied up that duplicated this
7282 *) Changed obj_dat.pl script so it takes its input and output files on
7283 the command line. This should avoid shell escape redirection problems
7287 *) Initial support for certificate extension requests, these are included
7288 in things like Xenroll certificate requests. Included functions to allow
7289 extensions to be obtained and added.
7292 *) -crlf option to s_client and s_server for sending newlines as
7293 CRLF (as required by many protocols).
7296 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
7298 *) Install libRSAglue.a when OpenSSL is built with RSAref.
7299 [Ralf S. Engelschall]
7301 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
7302 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
7304 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
7308 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
7309 DH parameters/keys (q is lost during that conversion, but the resulting
7310 DH parameters contain its length).
7312 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
7313 much faster than DH_generate_parameters (which creates parameters
7314 where p = 2*q + 1), and also the smaller q makes DH computations
7315 much more efficient (160-bit exponentiation instead of 1024-bit
7316 exponentiation); so this provides a convenient way to support DHE
7317 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
7318 utter importance to use
7319 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7321 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7322 when such DH parameters are used, because otherwise small subgroup
7323 attacks may become possible!
7326 *) Avoid memory leak in i2d_DHparams.
7329 *) Allow the -k option to be used more than once in the enc program:
7330 this allows the same encrypted message to be read by multiple recipients.
7333 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
7334 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
7335 it will always use the numerical form of the OID, even if it has a short
7339 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
7340 method only got called if p,q,dmp1,dmq1,iqmp components were present,
7341 otherwise bn_mod_exp was called. In the case of hardware keys for example
7342 no private key components need be present and it might store extra data
7343 in the RSA structure, which cannot be accessed from bn_mod_exp.
7344 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
7345 private key operations.
7348 *) Added support for SPARC Linux.
7351 *) pem_password_cb function type incompatibly changed from
7352 typedef int pem_password_cb(char *buf, int size, int rwflag);
7354 ....(char *buf, int size, int rwflag, void *userdata);
7355 so that applications can pass data to their callbacks:
7356 The PEM[_ASN1]_{read,write}... functions and macros now take an
7357 additional void * argument, which is just handed through whenever
7358 the password callback is called.
7359 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
7361 New function SSL_CTX_set_default_passwd_cb_userdata.
7363 Compatibility note: As many C implementations push function arguments
7364 onto the stack in reverse order, the new library version is likely to
7365 interoperate with programs that have been compiled with the old
7366 pem_password_cb definition (PEM_whatever takes some data that
7367 happens to be on the stack as its last argument, and the callback
7368 just ignores this garbage); but there is no guarantee whatsoever that
7371 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
7372 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
7373 problems not only on Windows, but also on some Unix platforms.
7374 To avoid problematic command lines, these definitions are now in an
7375 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
7376 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
7379 *) MIPS III/IV assembler module is reimplemented.
7382 *) More DES library cleanups: remove references to srand/rand and
7383 delete an unused file.
7386 *) Add support for the the free Netwide assembler (NASM) under Win32,
7387 since not many people have MASM (ml) and it can be hard to obtain.
7388 This is currently experimental but it seems to work OK and pass all
7389 the tests. Check out INSTALL.W32 for info.
7392 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
7393 without temporary keys kept an extra copy of the server key,
7394 and connections with temporary keys did not free everything in case
7398 *) New function RSA_check_key and new openssl rsa option -check
7399 for verifying the consistency of RSA keys.
7400 [Ulf Moeller, Bodo Moeller]
7402 *) Various changes to make Win32 compile work:
7403 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
7404 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
7405 comparison" warnings.
7406 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
7409 *) Add a debugging option to PKCS#5 v2 key generation function: when
7410 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
7411 derived keys are printed to stderr.
7414 *) Copy the flags in ASN1_STRING_dup().
7415 [Roman E. Pavlov <pre@mo.msk.ru>]
7417 *) The x509 application mishandled signing requests containing DSA
7418 keys when the signing key was also DSA and the parameters didn't match.
7420 It was supposed to omit the parameters when they matched the signing key:
7421 the verifying software was then supposed to automatically use the CA's
7422 parameters if they were absent from the end user certificate.
7424 Omitting parameters is no longer recommended. The test was also
7425 the wrong way round! This was probably due to unusual behaviour in
7426 EVP_cmp_parameters() which returns 1 if the parameters match.
7427 This meant that parameters were omitted when they *didn't* match and
7428 the certificate was useless. Certificates signed with 'ca' didn't have
7430 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
7432 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
7433 The interface is as follows:
7434 Applications can use
7435 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
7436 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
7437 "off" is now the default.
7438 The library internally uses
7439 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
7440 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
7441 to disable memory-checking temporarily.
7443 Some inconsistent states that previously were possible (and were
7444 even the default) are now avoided.
7446 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
7447 with each memory chunk allocated; this is occasionally more helpful
7448 than just having a counter.
7450 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
7452 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
7456 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
7457 which largely parallels "options", but is for changing API behaviour,
7458 whereas "options" are about protocol behaviour.
7459 Initial "mode" flags are:
7461 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
7462 a single record has been written.
7463 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
7464 retries use the same buffer location.
7465 (But all of the contents must be
7469 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
7472 *) Fix problems with no-hmac etc.
7473 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
7475 *) New functions RSA_get_default_method(), RSA_set_method() and
7476 RSA_get_method(). These allows replacement of RSA_METHODs without having
7477 to mess around with the internals of an RSA structure.
7480 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
7481 Also really enable memory leak checks in openssl.c and in some
7483 [Chad C. Mulligan, Bodo Moeller]
7485 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
7486 up the length of negative integers. This has now been simplified to just
7487 store the length when it is first determined and use it later, rather
7488 than trying to keep track of where data is copied and updating it to
7490 [Steve Henson, reported by Brien Wheeler
7491 <bwheeler@authentica-security.com>]
7493 *) Add a new function PKCS7_signatureVerify. This allows the verification
7494 of a PKCS#7 signature but with the signing certificate passed to the
7495 function itself. This contrasts with PKCS7_dataVerify which assumes the
7496 certificate is present in the PKCS#7 structure. This isn't always the
7497 case: certificates can be omitted from a PKCS#7 structure and be
7498 distributed by "out of band" means (such as a certificate database).
7501 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
7502 function prototypes in pem.h, also change util/mkdef.pl to add the
7503 necessary function names.
7506 *) mk1mf.pl (used by Windows builds) did not properly read the
7507 options set by Configure in the top level Makefile, and Configure
7508 was not even able to write more than one option correctly.
7509 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
7512 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
7513 file to be loaded from a BIO or FILE pointer. The BIO version will
7514 for example allow memory BIOs to contain config info.
7517 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
7518 Whoever hopes to achieve shared-library compatibility across versions
7519 must use this, not the compile-time macro.
7520 (Exercise 0.9.4: Which is the minimum library version required by
7522 Note: All this applies only to multi-threaded programs, others don't
7526 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
7527 through a BIO pair triggered the default case, i.e.
7528 SSLerr(...,SSL_R_UNKNOWN_STATE).
7531 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
7532 can use the SSL library even if none of the specific BIOs is
7536 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
7537 for the encoded length.
7538 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
7540 *) Add initial documentation of the X509V3 functions.
7543 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
7544 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
7545 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
7546 secure PKCS#8 private key format with a high iteration count.
7549 *) Fix determination of Perl interpreter: A perl or perl5
7550 _directory_ in $PATH was also accepted as the interpreter.
7551 [Ralf S. Engelschall]
7553 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
7554 wrong with it but it was very old and did things like calling
7555 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
7559 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
7560 to use the new extension code.
7563 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
7564 with macros. This should make it easier to change their form, add extra
7565 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
7569 *) Add to configuration table a new entry that can specify an alternative
7570 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
7571 according to Mark Crispin <MRC@Panda.COM>.
7575 *) DES CBC did not update the IV. Weird.
7578 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
7579 Changing the behaviour of the former might break existing programs --
7580 where IV updating is needed, des_ncbc_encrypt can be used.
7583 *) When bntest is run from "make test" it drives bc to check its
7584 calculations, as well as internally checking them. If an internal check
7585 fails, it needs to cause bc to give a non-zero result or make test carries
7586 on without noticing the failure. Fixed.
7589 *) DES library cleanups.
7592 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
7593 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
7594 ciphers. NOTE: although the key derivation function has been verified
7595 against some published test vectors it has not been extensively tested
7596 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
7600 *) Instead of "mkdir -p", which is not fully portable, use new
7601 Perl script "util/mkdir-p.pl".
7604 *) Rewrite the way password based encryption (PBE) is handled. It used to
7605 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
7606 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
7607 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
7608 the 'parameter' field of the AlgorithmIdentifier is passed to the
7609 underlying key generation function so it must do its own ASN1 parsing.
7610 This has also changed the EVP_PBE_CipherInit() function which now has a
7611 'parameter' argument instead of literal salt and iteration count values
7612 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
7615 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
7616 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
7617 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
7618 KEY" because this clashed with PKCS#8 unencrypted string. Since this
7619 value was just used as a "magic string" and not used directly its
7620 value doesn't matter.
7623 *) Introduce some semblance of const correctness to BN. Shame C doesn't
7627 *) "linux-sparc64" configuration (ultrapenguin).
7628 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
7629 "linux-sparc" configuration.
7630 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
7632 *) config now generates no-xxx options for missing ciphers.
7635 *) Support the EBCDIC character set (work in progress).
7636 File ebcdic.c not yet included because it has a different license.
7637 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7639 *) Support BS2000/OSD-POSIX.
7640 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7642 *) Make callbacks for key generation use void * instead of char *.
7645 *) Make S/MIME samples compile (not yet tested).
7648 *) Additional typesafe stacks.
7651 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
7655 Changes between 0.9.3 and 0.9.3a [29 May 1999]
7657 *) New configuration variant "sco5-gcc".
7659 *) Updated some demos.
7660 [Sean O Riordain, Wade Scholine]
7662 *) Add missing BIO_free at exit of pkcs12 application.
7665 *) Fix memory leak in conf.c.
7668 *) Updates for Win32 to assembler version of MD5.
7671 *) Set #! path to perl in apps/der_chop to where we found it
7672 instead of using a fixed path.
7675 *) SHA library changes for irix64-mips4-cc.
7678 *) Improvements for VMS support.
7682 Changes between 0.9.2b and 0.9.3 [24 May 1999]
7684 *) Bignum library bug fix. IRIX 6 passes "make test" now!
7685 This also avoids the problems with SC4.2 and unpatched SC5.
7686 [Andy Polyakov <appro@fy.chalmers.se>]
7688 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
7689 These are required because of the typesafe stack would otherwise break
7690 existing code. If old code used a structure member which used to be STACK
7691 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
7692 sk_num or sk_value it would produce an error because the num, data members
7693 are not present in STACK_OF. Now it just produces a warning. sk_set
7694 replaces the old method of assigning a value to sk_value
7695 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
7696 that does this will no longer work (and should use sk_set instead) but
7697 this could be regarded as a "questionable" behaviour anyway.
7700 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
7701 correctly handle encrypted S/MIME data.
7704 *) Change type of various DES function arguments from des_cblock
7705 (which means, in function argument declarations, pointer to char)
7706 to des_cblock * (meaning pointer to array with 8 char elements),
7707 which allows the compiler to do more typechecking; it was like
7708 that back in SSLeay, but with lots of ugly casts.
7710 Introduce new type const_des_cblock.
7713 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
7714 problems: find RecipientInfo structure that matches recipient certificate
7715 and initialise the ASN1 structures properly based on passed cipher.
7718 *) Belatedly make the BN tests actually check the results.
7721 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
7722 to and from BNs: it was completely broken. New compilation option
7723 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
7724 key elements as negative integers.
7727 *) Reorganize and speed up MD5.
7728 [Andy Polyakov <appro@fy.chalmers.se>]
7731 [Richard Levitte <richard@levitte.org>]
7733 *) New option -out to asn1parse to allow the parsed structure to be
7734 output to a file. This is most useful when combined with the -strparse
7735 option to examine the output of things like OCTET STRINGS.
7738 *) Make SSL library a little more fool-proof by not requiring any longer
7739 that SSL_set_{accept,connect}_state be called before
7740 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
7741 in many applications because usually everything *appeared* to work as
7742 intended anyway -- now it really works as intended).
7745 *) Move openssl.cnf out of lib/.
7748 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
7749 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
7750 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
7751 [Ralf S. Engelschall]
7753 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
7754 handle PKCS#7 enveloped data properly.
7755 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
7757 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
7758 copying pointers. The cert_st handling is changed by this in
7759 various ways (and thus what used to be known as ctx->default_cert
7760 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
7761 any longer when s->cert does not give us what we need).
7762 ssl_cert_instantiate becomes obsolete by this change.
7763 As soon as we've got the new code right (possibly it already is?),
7764 we have solved a couple of bugs of the earlier code where s->cert
7765 was used as if it could not have been shared with other SSL structures.
7767 Note that using the SSL API in certain dirty ways now will result
7768 in different behaviour than observed with earlier library versions:
7769 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
7770 does not influence s as it used to.
7772 In order to clean up things more thoroughly, inside SSL_SESSION
7773 we don't use CERT any longer, but a new structure SESS_CERT
7774 that holds per-session data (if available); currently, this is
7775 the peer's certificate chain and, for clients, the server's certificate
7776 and temporary key. CERT holds only those values that can have
7777 meaningful defaults in an SSL_CTX.
7780 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
7781 from the internal representation. Various PKCS#7 fixes: remove some
7782 evil casts and set the enc_dig_alg field properly based on the signing
7786 *) Allow PKCS#12 password to be set from the command line or the
7787 environment. Let 'ca' get its config file name from the environment
7788 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
7792 *) Allow certificate policies extension to use an IA5STRING for the
7793 organization field. This is contrary to the PKIX definition but
7794 VeriSign uses it and IE5 only recognises this form. Document 'x509'
7798 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
7799 without disallowing inline assembler and the like for non-pedantic builds.
7802 *) Support Borland C++ builder.
7803 [Janez Jere <jj@void.si>, modified by Ulf Möller]
7808 *) SHA-1 cleanups and performance enhancements.
7809 [Andy Polyakov <appro@fy.chalmers.se>]
7811 *) Sparc v8plus assembler for the bignum library.
7812 [Andy Polyakov <appro@fy.chalmers.se>]
7814 *) Accept any -xxx and +xxx compiler options in Configure.
7817 *) Update HPUX configuration.
7820 *) Add missing sk_<type>_unshift() function to safestack.h
7821 [Ralf S. Engelschall]
7823 *) New function SSL_CTX_use_certificate_chain_file that sets the
7824 "extra_cert"s in addition to the certificate. (This makes sense
7825 only for "PEM" format files, as chains as a whole are not
7829 *) Support verify_depth from the SSL API.
7830 x509_vfy.c had what can be considered an off-by-one-error:
7831 Its depth (which was not part of the external interface)
7832 was actually counting the number of certificates in a chain;
7833 now it really counts the depth.
7836 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
7837 instead of X509err, which often resulted in confusing error
7838 messages since the error codes are not globally unique
7839 (e.g. an alleged error in ssl3_accept when a certificate
7840 didn't match the private key).
7842 *) New function SSL_CTX_set_session_id_context that allows to set a default
7843 value (so that you don't need SSL_set_session_id_context for each
7844 connection using the SSL_CTX).
7847 *) OAEP decoding bug fix.
7850 *) Support INSTALL_PREFIX for package builders, as proposed by
7854 *) New Configure options "threads" and "no-threads". For systems
7855 where the proper compiler options are known (currently Solaris
7856 and Linux), "threads" is the default.
7859 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
7862 *) Install various scripts to $(OPENSSLDIR)/misc, not to
7863 $(INSTALLTOP)/bin -- they shouldn't clutter directories
7864 such as /usr/local/bin.
7867 *) "make linux-shared" to build shared libraries.
7868 [Niels Poppe <niels@netbox.org>]
7870 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
7873 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
7874 extension adding in x509 utility.
7877 *) Remove NOPROTO sections and error code comments.
7880 *) Partial rewrite of the DEF file generator to now parse the ANSI
7884 *) New Configure options --prefix=DIR and --openssldir=DIR.
7887 *) Complete rewrite of the error code script(s). It is all now handled
7888 by one script at the top level which handles error code gathering,
7889 header rewriting and C source file generation. It should be much better
7890 than the old method: it now uses a modified version of Ulf's parser to
7891 read the ANSI prototypes in all header files (thus the old K&R definitions
7892 aren't needed for error creation any more) and do a better job of
7893 translating function codes into names. The old 'ASN1 error code imbedded
7894 in a comment' is no longer necessary and it doesn't use .err files which
7895 have now been deleted. Also the error code call doesn't have to appear all
7896 on one line (which resulted in some large lines...).
7899 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
7902 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
7903 0 (which usually indicates a closed connection), but continue reading.
7906 *) Fix some race conditions.
7909 *) Add support for CRL distribution points extension. Add Certificate
7910 Policies and CRL distribution points documentation.
7913 *) Move the autogenerated header file parts to crypto/opensslconf.h.
7916 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
7917 8 of keying material. Merlin has also confirmed interop with this fix
7918 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
7919 [Merlin Hughes <merlin@baltimore.ie>]
7921 *) Fix lots of warnings.
7922 [Richard Levitte <levitte@stacken.kth.se>]
7924 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
7925 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
7926 [Richard Levitte <levitte@stacken.kth.se>]
7928 *) Fix problems with sizeof(long) == 8.
7929 [Andy Polyakov <appro@fy.chalmers.se>]
7931 *) Change functions to ANSI C.
7934 *) Fix typos in error codes.
7935 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
7937 *) Remove defunct assembler files from Configure.
7940 *) SPARC v8 assembler BIGNUM implementation.
7941 [Andy Polyakov <appro@fy.chalmers.se>]
7943 *) Support for Certificate Policies extension: both print and set.
7944 Various additions to support the r2i method this uses.
7947 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
7948 return a const string when you are expecting an allocated buffer.
7951 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
7952 types DirectoryString and DisplayText.
7955 *) Add code to allow r2i extensions to access the configuration database,
7956 add an LHASH database driver and add several ctx helper functions.
7959 *) Fix an evil bug in bn_expand2() which caused various BN functions to
7960 fail when they extended the size of a BIGNUM.
7963 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
7964 support typesafe stack.
7967 *) Fix typo in SSL_[gs]et_options().
7968 [Nils Frostberg <nils@medcom.se>]
7970 *) Delete various functions and files that belonged to the (now obsolete)
7971 old X509V3 handling code.
7974 *) New Configure option "rsaref".
7977 *) Don't auto-generate pem.h.
7980 *) Introduce type-safe ASN.1 SETs.
7983 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
7984 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
7986 *) Introduce type-safe STACKs. This will almost certainly break lots of code
7987 that links with OpenSSL (well at least cause lots of warnings), but fear
7988 not: the conversion is trivial, and it eliminates loads of evil casts. A
7989 few STACKed things have been converted already. Feel free to convert more.
7990 In the fullness of time, I'll do away with the STACK type altogether.
7993 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
7994 specified in <certfile> by updating the entry in the index.txt file.
7995 This way one no longer has to edit the index.txt file manually for
7996 revoking a certificate. The -revoke option does the gory details now.
7997 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
7999 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
8000 `-text' option at all and this way the `-noout -text' combination was
8001 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
8002 [Ralf S. Engelschall]
8004 *) Make sure a corresponding plain text error message exists for the
8005 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
8006 verify callback function determined that a certificate was revoked.
8007 [Ralf S. Engelschall]
8009 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
8010 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
8011 all available cipers including rc5, which was forgotten until now.
8012 In order to let the testing shell script know which algorithms
8013 are available, a new (up to now undocumented) command
8014 "openssl list-cipher-commands" is used.
8017 *) Bugfix: s_client occasionally would sleep in select() when
8018 it should have checked SSL_pending() first.
8021 *) New functions DSA_do_sign and DSA_do_verify to provide access to
8022 the raw DSA values prior to ASN.1 encoding.
8025 *) Tweaks to Configure
8026 [Niels Poppe <niels@netbox.org>]
8028 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
8032 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
8035 *) New config option to avoid instructions that are illegal on the 80386.
8036 The default code is faster, but requires at least a 486.
8039 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
8040 SSL2_SERVER_VERSION (not used at all) macros, which are now the
8041 same as SSL2_VERSION anyway.
8044 *) New "-showcerts" option for s_client.
8047 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
8048 application. Various cleanups and fixes.
8051 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
8052 modify error routines to work internally. Add error codes and PBE init
8053 to library startup routines.
8056 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
8057 packing functions to asn1 and evp. Changed function names and error
8058 codes along the way.
8061 *) PKCS12 integration: and so it begins... First of several patches to
8062 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
8063 objects to objects.h
8066 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
8067 and display support for Thawte strong extranet extension.
8070 *) Add LinuxPPC support.
8071 [Jeff Dubrule <igor@pobox.org>]
8073 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
8074 bn_div_words in alpha.s.
8075 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
8077 *) Make sure the RSA OAEP test is skipped under -DRSAref because
8078 OAEP isn't supported when OpenSSL is built with RSAref.
8079 [Ulf Moeller <ulf@fitug.de>]
8081 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
8082 so they no longer are missing under -DNOPROTO.
8083 [Soren S. Jorvang <soren@t.dk>]
8086 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
8088 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
8089 doesn't work when the session is reused. Coming soon!
8092 *) Fix a security hole, that allows sessions to be reused in the wrong
8093 context thus bypassing client cert protection! All software that uses
8094 client certs and session caches in multiple contexts NEEDS PATCHING to
8095 allow session reuse! A fuller solution is in the works.
8096 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
8098 *) Some more source tree cleanups (removed obsolete files
8099 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
8100 permission on "config" script to be executable) and a fix for the INSTALL
8102 [Ulf Moeller <ulf@fitug.de>]
8104 *) Remove some legacy and erroneous uses of malloc, free instead of
8106 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
8108 *) Make rsa_oaep_test return non-zero on error.
8109 [Ulf Moeller <ulf@fitug.de>]
8111 *) Add support for native Solaris shared libraries. Configure
8112 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
8113 if someone would make that last step automatic.
8114 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
8116 *) ctx_size was not built with the right compiler during "make links". Fixed.
8119 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
8120 except NULL ciphers". This means the default cipher list will no longer
8121 enable NULL ciphers. They need to be specifically enabled e.g. with
8122 the string "DEFAULT:eNULL".
8125 *) Fix to RSA private encryption routines: if p < q then it would
8126 occasionally produce an invalid result. This will only happen with
8127 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
8130 *) Be less restrictive and allow also `perl util/perlpath.pl
8131 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
8132 because this way one can also use an interpreter named `perl5' (which is
8133 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
8134 installed as `perl').
8135 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8137 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
8138 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8140 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
8141 advapi32.lib to Win32 build and change the pem test comparision
8142 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
8143 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
8144 and crypto/des/ede_cbcm_enc.c.
8147 *) DES quad checksum was broken on big-endian architectures. Fixed.
8150 *) Comment out two functions in bio.h that aren't implemented. Fix up the
8151 Win32 test batch file so it (might) work again. The Win32 test batch file
8152 is horrible: I feel ill....
8155 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
8156 in e_os.h. Audit of header files to check ANSI and non ANSI
8157 sections: 10 functions were absent from non ANSI section and not exported
8158 from Windows DLLs. Fixed up libeay.num for new functions.
8161 *) Make `openssl version' output lines consistent.
8162 [Ralf S. Engelschall]
8164 *) Fix Win32 symbol export lists for BIO functions: Added
8165 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
8166 to ms/libeay{16,32}.def.
8167 [Ralf S. Engelschall]
8169 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
8170 fine under Unix and passes some trivial tests I've now added. But the
8171 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
8172 added to make sure no one expects that this stuff really works in the
8173 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
8174 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
8176 [Ralf S. Engelschall]
8178 *) Fix the generation of two part addresses in perl.
8179 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
8181 *) Add config entry for Linux on MIPS.
8182 [John Tobey <jtobey@channel1.com>]
8184 *) Make links whenever Configure is run, unless we are on Windoze.
8187 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
8188 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
8192 *) Add a useful kludge to allow package maintainers to specify compiler and
8193 other platforms details on the command line without having to patch the
8194 Configure script everytime: One now can use ``perl Configure
8195 <id>:<details>'', i.e. platform ids are allowed to have details appended
8196 to them (seperated by colons). This is treated as there would be a static
8197 pre-configured entry in Configure's %table under key <id> with value
8198 <details> and ``perl Configure <id>'' is called. So, when you want to
8199 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
8200 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
8201 now, which overrides the FreeBSD-elf entry on-the-fly.
8202 [Ralf S. Engelschall]
8204 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
8207 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
8208 on the `perl Configure ...' command line. This way one can compile
8209 OpenSSL libraries with Position Independent Code (PIC) which is needed
8210 for linking it into DSOs.
8211 [Ralf S. Engelschall]
8213 *) Remarkably, export ciphers were totally broken and no-one had noticed!
8217 *) Cleaned up the LICENSE document: The official contact for any license
8218 questions now is the OpenSSL core team under openssl-core@openssl.org.
8219 And add a paragraph about the dual-license situation to make sure people
8220 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
8221 to the OpenSSL toolkit.
8222 [Ralf S. Engelschall]
8224 *) General source tree makefile cleanups: Made `making xxx in yyy...'
8225 display consistent in the source tree and replaced `/bin/rm' by `rm'.
8226 Additonally cleaned up the `make links' target: Remove unnecessary
8227 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
8228 to speed processing and no longer clutter the display with confusing
8229 stuff. Instead only the actually done links are displayed.
8230 [Ralf S. Engelschall]
8232 *) Permit null encryption ciphersuites, used for authentication only. It used
8233 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
8234 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
8238 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
8239 signed attributes when verifying signatures (this would break them),
8240 the detached data encoding was wrong and public keys obtained using
8241 X509_get_pubkey() weren't freed.
8244 *) Add text documentation for the BUFFER functions. Also added a work around
8245 to a Win95 console bug. This was triggered by the password read stuff: the
8246 last character typed gets carried over to the next fread(). If you were
8247 generating a new cert request using 'req' for example then the last
8248 character of the passphrase would be CR which would then enter the first
8252 *) Added the new `Includes OpenSSL Cryptography Software' button as
8253 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
8254 button and can be used by applications based on OpenSSL to show the
8255 relationship to the OpenSSL project.
8256 [Ralf S. Engelschall]
8258 *) Remove confusing variables in function signatures in files
8259 ssl/ssl_lib.c and ssl/ssl.h.
8260 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8262 *) Don't install bss_file.c under PREFIX/include/
8263 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8265 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
8266 functions that return function pointers and has support for NT specific
8267 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
8268 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
8269 unsigned to signed types: this was killing the Win32 compile.
8272 *) Add new certificate file to stack functions,
8273 SSL_add_dir_cert_subjects_to_stack() and
8274 SSL_add_file_cert_subjects_to_stack(). These largely supplant
8275 SSL_load_client_CA_file(), and can be used to add multiple certs easily
8276 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
8277 This means that Apache-SSL and similar packages don't have to mess around
8278 to add as many CAs as they want to the preferred list.
8281 *) Experiment with doxygen documentation. Currently only partially applied to
8283 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
8284 openssl.doxy as the configuration file.
8287 *) Get rid of remaining C++-style comments which strict C compilers hate.
8288 [Ralf S. Engelschall, pointed out by Carlos Amengual]
8290 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
8291 compiled in by default: it has problems with large keys.
8294 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
8295 DH private keys and/or callback functions which directly correspond to
8296 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
8297 is needed for applications which have to configure certificates on a
8298 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
8300 For the RSA certificate situation is makes no difference, but
8301 for the DSA certificate situation this fixes the "no shared cipher"
8302 problem where the OpenSSL cipher selection procedure failed because the
8303 temporary keys were not overtaken from the context and the API provided
8304 no way to reconfigure them.
8305 The new functions now let applications reconfigure the stuff and they
8306 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
8307 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
8308 non-public-API function ssl_cert_instantiate() is used as a helper
8309 function and also to reduce code redundancy inside ssl_rsa.c.
8310 [Ralf S. Engelschall]
8312 *) Move s_server -dcert and -dkey options out of the undocumented feature
8313 area because they are useful for the DSA situation and should be
8314 recognized by the users.
8315 [Ralf S. Engelschall]
8317 *) Fix the cipher decision scheme for export ciphers: the export bits are
8318 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
8319 SSL_EXP_MASK. So, the original variable has to be used instead of the
8320 already masked variable.
8321 [Richard Levitte <levitte@stacken.kth.se>]
8323 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
8324 [Richard Levitte <levitte@stacken.kth.se>]
8326 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
8327 from `int' to `unsigned int' because it's a length and initialized by
8328 EVP_DigestFinal() which expects an `unsigned int *'.
8329 [Richard Levitte <levitte@stacken.kth.se>]
8331 *) Don't hard-code path to Perl interpreter on shebang line of Configure
8332 script. Instead use the usual Shell->Perl transition trick.
8333 [Ralf S. Engelschall]
8335 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
8336 (in addition to RSA certificates) to match the behaviour of `openssl dsa
8337 -noout -modulus' as it's already the case for `openssl rsa -noout
8338 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
8339 currently the public key is printed (a decision which was already done by
8340 `openssl dsa -modulus' in the past) which serves a similar purpose.
8341 Additionally the NO_RSA no longer completely removes the whole -modulus
8342 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
8344 [Ralf S. Engelschall]
8346 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
8347 BIO. See the source (crypto/evp/bio_ok.c) for more info.
8348 [Arne Ansper <arne@ats.cyber.ee>]
8350 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
8351 to be added. Now both 'req' and 'ca' can use new objects defined in the
8355 *) Add cool BIO that does syslog (or event log on NT).
8356 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
8358 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
8359 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
8360 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
8361 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
8364 *) Add preliminary config info for new extension code.
8367 *) Make RSA_NO_PADDING really use no padding.
8368 [Ulf Moeller <ulf@fitug.de>]
8370 *) Generate errors when private/public key check is done.
8373 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
8374 for some CRL extensions and new objects added.
8377 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
8378 key usage extension and fuller support for authority key id.
8381 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
8382 padding method for RSA, which is recommended for new applications in PKCS
8383 #1 v2.0 (RFC 2437, October 1998).
8384 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
8385 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
8386 against Bleichbacher's attack on RSA.
8387 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
8390 *) Updates to the new SSL compression code
8391 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8393 *) Fix so that the version number in the master secret, when passed
8394 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
8395 (because the server will not accept higher), that the version number
8396 is 0x03,0x01, not 0x03,0x00
8397 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8399 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
8400 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
8401 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
8404 *) Support for RAW extensions where an arbitrary extension can be
8405 created by including its DER encoding. See apps/openssl.cnf for
8409 *) Make sure latest Perl versions don't interpret some generated C array
8410 code as Perl array code in the crypto/err/err_genc.pl script.
8411 [Lars Weber <3weber@informatik.uni-hamburg.de>]
8413 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
8414 not many people have the assembler. Various Win32 compilation fixes and
8415 update to the INSTALL.W32 file with (hopefully) more accurate Win32
8419 *) Modify configure script 'Configure' to automatically create crypto/date.h
8420 file under Win32 and also build pem.h from pem.org. New script
8421 util/mkfiles.pl to create the MINFO file on environments that can't do a
8422 'make files': perl util/mkfiles.pl >MINFO should work.
8425 *) Major rework of DES function declarations, in the pursuit of correctness
8426 and purity. As a result, many evil casts evaporated, and some weirdness,
8427 too. You may find this causes warnings in your code. Zapping your evil
8428 casts will probably fix them. Mostly.
8431 *) Fix for a typo in asn1.h. Bug fix to object creation script
8432 obj_dat.pl. It considered a zero in an object definition to mean
8433 "end of object": none of the objects in objects.h have any zeros
8434 so it wasn't spotted.
8435 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
8437 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
8438 Masking (CBCM). In the absence of test vectors, the best I have been able
8439 to do is check that the decrypt undoes the encrypt, so far. Send me test
8440 vectors if you have them.
8443 *) Correct calculation of key length for export ciphers (too much space was
8444 allocated for null ciphers). This has not been tested!
8447 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
8448 message is now correct (it understands "crypto" and "ssl" on its
8449 command line). There is also now an "update" option. This will update
8450 the util/ssleay.num and util/libeay.num files with any new functions.
8452 perl util/mkdef.pl crypto ssl update
8453 it will update them.
8456 *) Overhauled the Perl interface (perl/*):
8457 - ported BN stuff to OpenSSL's different BN library
8458 - made the perl/ source tree CVS-aware
8459 - renamed the package from SSLeay to OpenSSL (the files still contain
8460 their history because I've copied them in the repository)
8461 - removed obsolete files (the test scripts will be replaced
8462 by better Test::Harness variants in the future)
8463 [Ralf S. Engelschall]
8465 *) First cut for a very conservative source tree cleanup:
8466 1. merge various obsolete readme texts into doc/ssleay.txt
8467 where we collect the old documents and readme texts.
8468 2. remove the first part of files where I'm already sure that we no
8469 longer need them because of three reasons: either they are just temporary
8470 files which were left by Eric or they are preserved original files where
8471 I've verified that the diff is also available in the CVS via "cvs diff
8472 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
8473 the crypto/md/ stuff).
8474 [Ralf S. Engelschall]
8476 *) More extension code. Incomplete support for subject and issuer alt
8477 name, issuer and authority key id. Change the i2v function parameters
8478 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
8479 what that's for :-) Fix to ASN1 macro which messed up
8480 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
8483 *) Preliminary support for ENUMERATED type. This is largely copied from the
8487 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
8488 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8490 *) Make sure `make rehash' target really finds the `openssl' program.
8491 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8493 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
8494 like to hear about it if this slows down other processors.
8497 *) Add CygWin32 platform information to Configure script.
8498 [Alan Batie <batie@aahz.jf.intel.com>]
8500 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
8501 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
8503 *) New program nseq to manipulate netscape certificate sequences
8506 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
8510 *) Fixes to BN code. Previously the default was to define BN_RECURSION
8511 but the BN code had some problems that would cause failures when
8512 doing certificate verification and some other functions.
8513 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8515 *) Add ASN1 and PEM code to support netscape certificate sequences.
8518 *) Add ASN1 and PEM code to support netscape certificate sequences.
8521 *) Add several PKIX and private extended key usage OIDs.
8524 *) Modify the 'ca' program to handle the new extension code. Modify
8525 openssl.cnf for new extension format, add comments.
8528 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
8529 and add a sample to openssl.cnf so req -x509 now adds appropriate
8533 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
8534 error code, add initial support to X509_print() and x509 application.
8537 *) Takes a deep breath and start addding X509 V3 extension support code. Add
8538 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
8539 stuff is currently isolated and isn't even compiled yet.
8542 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
8543 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
8544 Removed the versions check from X509 routines when loading extensions:
8545 this allows certain broken certificates that don't set the version
8546 properly to be processed.
8549 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
8550 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
8551 can still be regenerated with "make depend".
8554 *) Spelling mistake in C version of CAST-128.
8555 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
8557 *) Changes to the error generation code. The perl script err-code.pl
8558 now reads in the old error codes and retains the old numbers, only
8559 adding new ones if necessary. It also only changes the .err files if new
8560 codes are added. The makefiles have been modified to only insert errors
8561 when needed (to avoid needlessly modifying header files). This is done
8562 by only inserting errors if the .err file is newer than the auto generated
8563 C file. To rebuild all the error codes from scratch (the old behaviour)
8564 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
8565 or delete all the .err files.
8568 *) CAST-128 was incorrectly implemented for short keys. The C version has
8569 been fixed, but is untested. The assembler versions are also fixed, but
8570 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
8571 to regenerate it if needed.
8572 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
8573 Hagino <itojun@kame.net>]
8575 *) File was opened incorrectly in randfile.c.
8576 [Ulf Möller <ulf@fitug.de>]
8578 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
8579 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
8580 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
8581 al: it's just almost always a UTCTime. Note this patch adds new error
8582 codes so do a "make errors" if there are problems.
8585 *) Correct Linux 1 recognition in config.
8586 [Ulf Möller <ulf@fitug.de>]
8588 *) Remove pointless MD5 hash when using DSA keys in ca.
8589 [Anonymous <nobody@replay.com>]
8591 *) Generate an error if given an empty string as a cert directory. Also
8592 generate an error if handed NULL (previously returned 0 to indicate an
8593 error, but didn't set one).
8594 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
8596 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
8599 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
8600 parameters. This was causing a warning which killed off the Win32 compile.
8603 *) Remove C++ style comments from crypto/bn/bn_local.h.
8604 [Neil Costigan <neil.costigan@celocom.com>]
8606 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
8607 based on a text string, looking up short and long names and finally
8608 "dot" format. The "dot" format stuff didn't work. Added new function
8609 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
8610 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
8611 OID is not part of the table.
8614 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
8615 X509_LOOKUP_by_alias().
8618 *) Sort openssl functions by name.
8621 *) Get the gendsa program working (hopefully) and add it to app list. Remove
8622 encryption from sample DSA keys (in case anyone is interested the password
8626 *) Make _all_ *_free functions accept a NULL pointer.
8627 [Frans Heymans <fheymans@isaserver.be>]
8629 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
8631 [Anonymous <nobody@replay.com>]
8633 *) s_server should send the CAfile as acceptable CAs, not its own cert.
8634 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8636 *) Don't blow it for numeric -newkey arguments to apps/req.
8637 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8639 *) Temp key "for export" tests were wrong in s3_srvr.c.
8640 [Anonymous <nobody@replay.com>]
8642 *) Add prototype for temp key callback functions
8643 SSL_CTX_set_tmp_{rsa,dh}_callback().
8646 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
8647 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
8650 *) X509_name_add_entry() freed the wrong thing after an error.
8651 [Arne Ansper <arne@ats.cyber.ee>]
8653 *) rsa_eay.c would attempt to free a NULL context.
8654 [Arne Ansper <arne@ats.cyber.ee>]
8656 *) BIO_s_socket() had a broken should_retry() on Windoze.
8657 [Arne Ansper <arne@ats.cyber.ee>]
8659 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
8660 [Arne Ansper <arne@ats.cyber.ee>]
8662 *) Make sure the already existing X509_STORE->depth variable is initialized
8663 in X509_STORE_new(), but document the fact that this variable is still
8664 unused in the certificate verification process.
8665 [Ralf S. Engelschall]
8667 *) Fix the various library and apps files to free up pkeys obtained from
8668 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
8671 *) Fix reference counting in X509_PUBKEY_get(). This makes
8672 demos/maurice/example2.c work, amongst others, probably.
8673 [Steve Henson and Ben Laurie]
8675 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
8676 `openssl' and second, the shortcut symlinks for the `openssl <command>'
8677 are no longer created. This way we have a single and consistent command
8678 line interface `openssl <command>', similar to `cvs <command>'.
8679 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
8681 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
8682 BIT STRING wrapper always have zero unused bits.
8685 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
8688 *) Make the top-level INSTALL documentation easier to understand.
8691 *) Makefiles updated to exit if an error occurs in a sub-directory
8692 make (including if user presses ^C) [Paul Sutton]
8694 *) Make Montgomery context stuff explicit in RSA data structure.
8697 *) Fix build order of pem and err to allow for generated pem.h.
8700 *) Fix renumbering bug in X509_NAME_delete_entry().
8703 *) Enhanced the err-ins.pl script so it makes the error library number
8704 global and can add a library name. This is needed for external ASN1 and
8705 other error libraries.
8708 *) Fixed sk_insert which never worked properly.
8711 *) Fix ASN1 macros so they can handle indefinite length construted
8712 EXPLICIT tags. Some non standard certificates use these: they can now
8716 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
8717 into a single doc/ssleay.txt bundle. This way the information is still
8718 preserved but no longer messes up this directory. Now it's new room for
8719 the new set of documenation files.
8720 [Ralf S. Engelschall]
8722 *) SETs were incorrectly DER encoded. This was a major pain, because they
8723 shared code with SEQUENCEs, which aren't coded the same. This means that
8724 almost everything to do with SETs or SEQUENCEs has either changed name or
8725 number of arguments.
8726 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
8728 *) Fix test data to work with the above.
8731 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
8732 was already fixed by Eric for 0.9.1 it seems.
8733 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
8735 *) Autodetect FreeBSD3.
8738 *) Fix various bugs in Configure. This affects the following platforms:
8742 unixware-2.0-pentium
8746 *) Eliminate generated files from CVS. Reorder tests to regenerate files
8747 before they are needed.
8750 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
8754 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
8756 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
8757 changed SSLeay to OpenSSL in version strings.
8758 [Ralf S. Engelschall]
8760 *) Some fixups to the top-level documents.
8763 *) Fixed the nasty bug where rsaref.h was not found under compile-time
8764 because the symlink to include/ was missing.
8765 [Ralf S. Engelschall]
8767 *) Incorporated the popular no-RSA/DSA-only patches
8768 which allow to compile a RSA-free SSLeay.
8769 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
8771 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
8772 when "ssleay" is still not found.
8773 [Ralf S. Engelschall]
8775 *) Added more platforms to Configure: Cray T3E, HPUX 11,
8776 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
8778 *) Updated the README file.
8779 [Ralf S. Engelschall]
8781 *) Added various .cvsignore files in the CVS repository subdirs
8782 to make a "cvs update" really silent.
8783 [Ralf S. Engelschall]
8785 *) Recompiled the error-definition header files and added
8786 missing symbols to the Win32 linker tables.
8787 [Ralf S. Engelschall]
8789 *) Cleaned up the top-level documents;
8790 o new files: CHANGES and LICENSE
8791 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
8792 o merged COPYRIGHT into LICENSE
8793 o removed obsolete TODO file
8794 o renamed MICROSOFT to INSTALL.W32
8795 [Ralf S. Engelschall]
8797 *) Removed dummy files from the 0.9.1b source tree:
8798 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
8799 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
8800 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
8801 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
8802 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
8803 [Ralf S. Engelschall]
8805 *) Added various platform portability fixes.
8808 *) The Genesis of the OpenSSL rpject:
8809 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
8810 Young and Tim J. Hudson created while they were working for C2Net until
8812 [The OpenSSL Project]
8815 Changes between 0.9.0b and 0.9.1b [not released]
8817 *) Updated a few CA certificates under certs/
8820 *) Changed some BIGNUM api stuff.
8823 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
8824 DGUX x86, Linux Alpha, etc.
8827 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
8828 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
8832 *) Add -strparse option to asn1pars program which parses nested
8834 [Dr Stephen Henson <shenson@bigfoot.com>]
8836 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
8839 *) DSA fix for "ca" program.
8842 *) Added "-genkey" option to "dsaparam" program.
8845 *) Added RIPE MD160 (rmd160) message digest.
8848 *) Added -a (all) option to "ssleay version" command.
8851 *) Added PLATFORM define which is the id given to Configure.
8854 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
8857 *) Extended the ASN.1 parser routines.
8860 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
8863 *) Added a BN_CTX to the BN library.
8866 *) Fixed the weak key values in DES library
8869 *) Changed API in EVP library for cipher aliases.
8872 *) Added support for RC2/64bit cipher.
8875 *) Converted the lhash library to the crypto/mem.c functions.
8878 *) Added more recognized ASN.1 object ids.
8881 *) Added more RSA padding checks for SSL/TLS.
8884 *) Added BIO proxy/filter functionality.
8887 *) Added extra_certs to SSL_CTX which can be used
8888 send extra CA certificates to the client in the CA cert chain sending
8889 process. It can be configured with SSL_CTX_add_extra_chain_cert().
8892 *) Now Fortezza is denied in the authentication phase because
8893 this is key exchange mechanism is not supported by SSLeay at all.
8896 *) Additional PKCS1 checks.
8899 *) Support the string "TLSv1" for all TLS v1 ciphers.
8902 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
8903 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
8906 *) Fixed a few memory leaks.
8909 *) Fixed various code and comment typos.
8912 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
8913 bytes sent in the client random.
8914 [Edward Bishop <ebishop@spyglass.com>]