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 of the PROSECCO team at INRIA for
15 *) Remove non-export ephemeral RSA code on client and server. This code
16 violated the TLS standard by allowing the use of temporary RSA keys in
17 non-export ciphersuites and could be used by a server to effectively
18 downgrade the RSA key length used to a value smaller than the server
19 certificate. Thanks for Karthikeyan Bhargavan of the PROSECCO team at
20 INRIA or reporting this issue.
24 *) Fix various certificate fingerprint issues.
26 By using non-DER or invalid encodings outside the signed portion of a
27 certificate the fingerprint can be changed without breaking the signature.
28 Although no details of the signed portion of the certificate can be changed
29 this can cause problems with some applications: e.g. those using the
30 certificate fingerprint for blacklists.
32 1. Reject signatures with non zero unused bits.
34 If the BIT STRING containing the signature has non zero unused bits reject
35 the signature. All current signature algorithms require zero unused bits.
37 2. Check certificate algorithm consistency.
39 Check the AlgorithmIdentifier inside TBS matches the one in the
40 certificate signature. NB: this will result in signature failure
41 errors for some broken certificates.
43 Thanks to Konrad Kraszewski from Google for reporting this issue.
45 3. Check DSA/ECDSA signatures use DER.
47 Reencode DSA/ECDSA signatures and compare with the original received
48 signature. Return an error if there is a mismatch.
50 This will reject various cases including garbage after signature
51 (thanks to Antti Karjalainen and Tuomo Untinen from the Codenomicon CROSS
52 program for discovering this case) and use of BER or invalid ASN.1 INTEGERs
53 (negative or with leading zeroes).
55 Further analysis was conducted and fixes were developed by Stephen Henson
56 of the OpenSSL core team.
61 Changes between 0.9.8zb and 0.9.8zc [15 Oct 2014]
63 *) Session Ticket Memory Leak.
65 When an OpenSSL SSL/TLS/DTLS server receives a session ticket the
66 integrity of that ticket is first verified. In the event of a session
67 ticket integrity check failing, OpenSSL will fail to free memory
68 causing a memory leak. By sending a large number of invalid session
69 tickets an attacker could exploit this issue in a Denial Of Service
74 *) Build option no-ssl3 is incomplete.
76 When OpenSSL is configured with "no-ssl3" as a build option, servers
77 could accept and complete a SSL 3.0 handshake, and clients could be
78 configured to send them.
80 [Akamai and the OpenSSL team]
82 *) Add support for TLS_FALLBACK_SCSV.
83 Client applications doing fallback retries should call
84 SSL_set_mode(s, SSL_MODE_SEND_FALLBACK_SCSV).
86 [Adam Langley, Bodo Moeller]
88 *) Add additional DigestInfo checks.
90 Reencode DigestInto in DER and check against the original when
91 verifying RSA signature: this will reject any improperly encoded
92 DigestInfo structures.
94 Note: this is a precautionary measure and no attacks are currently known.
98 Changes between 0.9.8za and 0.9.8zb [6 Aug 2014]
100 *) OpenSSL DTLS clients enabling anonymous (EC)DH ciphersuites are subject
101 to a denial of service attack. A malicious server can crash the client
102 with a null pointer dereference (read) by specifying an anonymous (EC)DH
103 ciphersuite and sending carefully crafted handshake messages.
105 Thanks to Felix Gröbert (Google) for discovering and researching this
110 *) By sending carefully crafted DTLS packets an attacker could cause openssl
111 to leak memory. This can be exploited through a Denial of Service attack.
112 Thanks to Adam Langley for discovering and researching this issue.
116 *) An attacker can force openssl to consume large amounts of memory whilst
117 processing DTLS handshake messages. This can be exploited through a
118 Denial of Service attack.
119 Thanks to Adam Langley for discovering and researching this issue.
123 *) An attacker can force an error condition which causes openssl to crash
124 whilst processing DTLS packets due to memory being freed twice. This
125 can be exploited through a Denial of Service attack.
126 Thanks to Adam Langley and Wan-Teh Chang for discovering and researching
131 *) A flaw in OBJ_obj2txt may cause pretty printing functions such as
132 X509_name_oneline, X509_name_print_ex et al. to leak some information
133 from the stack. Applications may be affected if they echo pretty printing
134 output to the attacker.
136 Thanks to Ivan Fratric (Google) for discovering this issue.
138 [Emilia Käsper, and Steve Henson]
140 *) Fix ec_GFp_simple_points_make_affine (thus, EC_POINTs_mul etc.)
141 for corner cases. (Certain input points at infinity could lead to
142 bogus results, with non-infinity inputs mapped to infinity too.)
145 Changes between 0.9.8y and 0.9.8za [5 Jun 2014]
147 *) Fix for SSL/TLS MITM flaw. An attacker using a carefully crafted
148 handshake can force the use of weak keying material in OpenSSL
149 SSL/TLS clients and servers.
151 Thanks to KIKUCHI Masashi (Lepidum Co. Ltd.) for discovering and
152 researching this issue. (CVE-2014-0224)
153 [KIKUCHI Masashi, Steve Henson]
155 *) Fix DTLS recursion flaw. By sending an invalid DTLS handshake to an
156 OpenSSL DTLS client the code can be made to recurse eventually crashing
159 Thanks to Imre Rad (Search-Lab Ltd.) for discovering this issue.
161 [Imre Rad, Steve Henson]
163 *) Fix DTLS invalid fragment vulnerability. A buffer overrun attack can
164 be triggered by sending invalid DTLS fragments to an OpenSSL DTLS
165 client or server. This is potentially exploitable to run arbitrary
166 code on a vulnerable client or server.
168 Thanks to Jüri Aedla for reporting this issue. (CVE-2014-0195)
169 [Jüri Aedla, Steve Henson]
171 *) Fix bug in TLS code where clients enable anonymous ECDH ciphersuites
172 are subject to a denial of service attack.
174 Thanks to Felix Gröbert and Ivan Fratric at Google for discovering
175 this issue. (CVE-2014-3470)
176 [Felix Gröbert, Ivan Fratric, Steve Henson]
178 *) Fix for the attack described in the paper "Recovering OpenSSL
179 ECDSA Nonces Using the FLUSH+RELOAD Cache Side-channel Attack"
180 by Yuval Yarom and Naomi Benger. Details can be obtained from:
181 http://eprint.iacr.org/2014/140
183 Thanks to Yuval Yarom and Naomi Benger for discovering this
184 flaw and to Yuval Yarom for supplying a fix (CVE-2014-0076)
185 [Yuval Yarom and Naomi Benger]
187 Thanks to mancha for backporting the fix to the 0.9.8 branch.
189 *) Fix handling of warning-level alerts in SSL23 client mode so they
190 don't cause client-side termination (eg. on SNI unrecognized_name
191 warnings). Add client and server support for six additional alerts
192 per RFC 6066 and RFC 4279.
195 *) Add option SSL_OP_SAFARI_ECDHE_ECDSA_BUG (part of SSL_OP_ALL) which
196 avoids preferring ECDHE-ECDSA ciphers when the client appears to be
197 Safari on OS X. Safari on OS X 10.8..10.8.3 advertises support for
198 several ECDHE-ECDSA ciphers, but fails to negotiate them. The bug
199 is fixed in OS X 10.8.4, but Apple have ruled out both hot fixing
200 10.8..10.8.3 and forcing users to upgrade to 10.8.4 or newer.
201 [Rob Stradling, Adam Langley]
203 Changes between 0.9.8x and 0.9.8y [5 Feb 2013]
205 *) Make the decoding of SSLv3, TLS and DTLS CBC records constant time.
207 This addresses the flaw in CBC record processing discovered by
208 Nadhem Alfardan and Kenny Paterson. Details of this attack can be found
209 at: http://www.isg.rhul.ac.uk/tls/
211 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
212 Security Group at Royal Holloway, University of London
213 (www.isg.rhul.ac.uk) for discovering this flaw and Adam Langley and
214 Emilia Käsper for the initial patch.
216 [Emilia Käsper, Adam Langley, Ben Laurie, Andy Polyakov, Steve Henson]
218 *) Return an error when checking OCSP signatures when key is NULL.
219 This fixes a DoS attack. (CVE-2013-0166)
222 *) Call OCSP Stapling callback after ciphersuite has been chosen, so
223 the right response is stapled. Also change SSL_get_certificate()
224 so it returns the certificate actually sent.
225 See http://rt.openssl.org/Ticket/Display.html?id=2836.
227 [Rob Stradling <rob.stradling@comodo.com>]
229 *) Fix possible deadlock when decoding public keys.
232 Changes between 0.9.8w and 0.9.8x [10 May 2012]
234 *) Sanity check record length before skipping explicit IV in DTLS
237 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic
238 fuzzing as a service testing platform.
242 *) Initialise tkeylen properly when encrypting CMS messages.
243 Thanks to Solar Designer of Openwall for reporting this issue.
246 Changes between 0.9.8v and 0.9.8w [23 Apr 2012]
248 *) The fix for CVE-2012-2110 did not take into account that the
249 'len' argument to BUF_MEM_grow and BUF_MEM_grow_clean is an
250 int in OpenSSL 0.9.8, making it still vulnerable. Fix by
251 rejecting negative len parameter. (CVE-2012-2131)
252 [Tomas Hoger <thoger@redhat.com>]
254 Changes between 0.9.8u and 0.9.8v [19 Apr 2012]
256 *) Check for potentially exploitable overflows in asn1_d2i_read_bio
257 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer
258 in CRYPTO_realloc_clean.
260 Thanks to Tavis Ormandy, Google Security Team, for discovering this
261 issue and to Adam Langley <agl@chromium.org> for fixing it.
263 [Adam Langley (Google), Tavis Ormandy, Google Security Team]
265 Changes between 0.9.8t and 0.9.8u [12 Mar 2012]
267 *) Fix MMA (Bleichenbacher's attack on PKCS #1 v1.5 RSA padding) weakness
268 in CMS and PKCS7 code. When RSA decryption fails use a random key for
269 content decryption and always return the same error. Note: this attack
270 needs on average 2^20 messages so it only affects automated senders. The
271 old behaviour can be reenabled in the CMS code by setting the
272 CMS_DEBUG_DECRYPT flag: this is useful for debugging and testing where
273 an MMA defence is not necessary.
274 Thanks to Ivan Nestlerode <inestlerode@us.ibm.com> for discovering
275 this issue. (CVE-2012-0884)
278 *) Fix CVE-2011-4619: make sure we really are receiving a
279 client hello before rejecting multiple SGC restarts. Thanks to
280 Ivan Nestlerode <inestlerode@us.ibm.com> for discovering this bug.
283 Changes between 0.9.8s and 0.9.8t [18 Jan 2012]
285 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109.
286 Thanks to Antonio Martin, Enterprise Secure Access Research and
287 Development, Cisco Systems, Inc. for discovering this bug and
288 preparing a fix. (CVE-2012-0050)
291 Changes between 0.9.8r and 0.9.8s [4 Jan 2012]
293 *) Nadhem Alfardan and Kenny Paterson have discovered an extension
294 of the Vaudenay padding oracle attack on CBC mode encryption
295 which enables an efficient plaintext recovery attack against
296 the OpenSSL implementation of DTLS. Their attack exploits timing
297 differences arising during decryption processing. A research
298 paper describing this attack can be found at:
299 http://www.isg.rhul.ac.uk/~kp/dtls.pdf
300 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
301 Security Group at Royal Holloway, University of London
302 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann
303 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de>
304 for preparing the fix. (CVE-2011-4108)
305 [Robin Seggelmann, Michael Tuexen]
307 *) Stop policy check failure freeing same buffer twice. (CVE-2011-4109)
308 [Ben Laurie, Kasper <ekasper@google.com>]
310 *) Clear bytes used for block padding of SSL 3.0 records.
312 [Adam Langley (Google)]
314 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George
315 Kadianakis <desnacked@gmail.com> for discovering this issue and
316 Adam Langley for preparing the fix. (CVE-2011-4619)
317 [Adam Langley (Google)]
319 *) Prevent malformed RFC3779 data triggering an assertion failure.
320 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw
321 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577)
322 [Rob Austein <sra@hactrn.net>]
324 *) Fix ssl_ciph.c set-up race.
325 [Adam Langley (Google)]
327 *) Fix spurious failures in ecdsatest.c.
328 [Emilia Käsper (Google)]
330 *) Fix the BIO_f_buffer() implementation (which was mixing different
331 interpretations of the '..._len' fields).
332 [Adam Langley (Google)]
334 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
335 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
336 threads won't reuse the same blinding coefficients.
338 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
339 lock to call BN_BLINDING_invert_ex, and avoids one use of
340 BN_BLINDING_update for each BN_BLINDING structure (previously,
341 the last update always remained unused).
342 [Emilia Käsper (Google)]
344 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
345 for multi-threaded use of ECDH.
346 [Adam Langley (Google)]
348 *) Fix x509_name_ex_d2i memory leak on bad inputs.
351 *) Add protection against ECDSA timing attacks as mentioned in the paper
352 by Billy Bob Brumley and Nicola Tuveri, see:
354 http://eprint.iacr.org/2011/232.pdf
356 [Billy Bob Brumley and Nicola Tuveri]
358 Changes between 0.9.8q and 0.9.8r [8 Feb 2011]
360 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
361 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
363 *) Fix bug in string printing code: if *any* escaping is enabled we must
364 escape the escape character (backslash) or the resulting string is
368 Changes between 0.9.8p and 0.9.8q [2 Dec 2010]
370 *) Disable code workaround for ancient and obsolete Netscape browsers
371 and servers: an attacker can use it in a ciphersuite downgrade attack.
372 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
375 *) Fixed J-PAKE implementation error, originally discovered by
376 Sebastien Martini, further info and confirmation from Stefan
377 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
380 Changes between 0.9.8o and 0.9.8p [16 Nov 2010]
382 *) Fix extension code to avoid race conditions which can result in a buffer
383 overrun vulnerability: resumed sessions must not be modified as they can
384 be shared by multiple threads. CVE-2010-3864
387 *) Fix for double free bug in ssl/s3_clnt.c CVE-2010-2939
390 *) Don't reencode certificate when calculating signature: cache and use
391 the original encoding instead. This makes signature verification of
392 some broken encodings work correctly.
395 *) ec2_GF2m_simple_mul bugfix: compute correct result if the output EC_POINT
396 is also one of the inputs.
397 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
399 *) Don't repeatedly append PBE algorithms to table if they already exist.
400 Sort table on each new add. This effectively makes the table read only
401 after all algorithms are added and subsequent calls to PKCS12_pbe_add
405 Changes between 0.9.8n and 0.9.8o [01 Jun 2010]
407 [NB: OpenSSL 0.9.8o and later 0.9.8 patch levels were released after
410 *) Correct a typo in the CMS ASN1 module which can result in invalid memory
411 access or freeing data twice (CVE-2010-0742)
412 [Steve Henson, Ronald Moesbergen <intercommit@gmail.com>]
414 *) Add SHA2 algorithms to SSL_library_init(). SHA2 is becoming far more
415 common in certificates and some applications which only call
416 SSL_library_init and not OpenSSL_add_all_algorithms() will fail.
420 Reduce copying into .apps and .test in makevms.com
421 Don't try to use blank CA certificate in CA.com
422 Allow use of C files from original directories in maketests.com
423 [Steven M. Schweda" <sms@antinode.info>]
425 Changes between 0.9.8m and 0.9.8n [24 Mar 2010]
427 *) When rejecting SSL/TLS records due to an incorrect version number, never
428 update s->server with a new major version number. As of
429 - OpenSSL 0.9.8m if 'short' is a 16-bit type,
430 - OpenSSL 0.9.8f if 'short' is longer than 16 bits,
431 the previous behavior could result in a read attempt at NULL when
432 receiving specific incorrect SSL/TLS records once record payload
433 protection is active. (CVE-2010-0740)
434 [Bodo Moeller, Adam Langley <agl@chromium.org>]
436 *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL
437 could be crashed if the relevant tables were not present (e.g. chrooted).
438 [Tomas Hoger <thoger@redhat.com>]
440 Changes between 0.9.8l and 0.9.8m [25 Feb 2010]
442 *) Always check bn_wexpend() return values for failure. (CVE-2009-3245)
443 [Martin Olsson, Neel Mehta]
445 *) Fix X509_STORE locking: Every 'objs' access requires a lock (to
446 accommodate for stack sorting, always a write lock!).
449 *) On some versions of WIN32 Heap32Next is very slow. This can cause
450 excessive delays in the RAND_poll(): over a minute. As a workaround
451 include a time check in the inner Heap32Next loop too.
454 *) The code that handled flushing of data in SSL/TLS originally used the
455 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused
456 the problem outlined in PR#1949. The fix suggested there however can
457 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions
458 of Apache). So instead simplify the code to flush unconditionally.
459 This should be fine since flushing with no data to flush is a no op.
462 *) Handle TLS versions 2.0 and later properly and correctly use the
463 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way
464 off ancient servers have a habit of sticking around for a while...
467 *) Modify compression code so it frees up structures without using the
468 ex_data callbacks. This works around a problem where some applications
469 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when
470 restarting) then use compression (e.g. SSL with compression) later.
471 This results in significant per-connection memory leaks and
472 has caused some security issues including CVE-2008-1678 and
476 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't
477 change when encrypting or decrypting.
480 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to
481 connect and renegotiate with servers which do not support RI.
482 Until RI is more widely deployed this option is enabled by default.
485 *) Add "missing" ssl ctrls to clear options and mode.
488 *) If client attempts to renegotiate and doesn't support RI respond with
489 a no_renegotiation alert as required by RFC5746. Some renegotiating
490 TLS clients will continue a connection gracefully when they receive
491 the alert. Unfortunately OpenSSL mishandled this alert and would hang
492 waiting for a server hello which it will never receive. Now we treat a
493 received no_renegotiation alert as a fatal error. This is because
494 applications requesting a renegotiation might well expect it to succeed
495 and would have no code in place to handle the server denying it so the
496 only safe thing to do is to terminate the connection.
499 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if
500 peer supports secure renegotiation and 0 otherwise. Print out peer
501 renegotiation support in s_client/s_server.
504 *) Replace the highly broken and deprecated SPKAC certification method with
505 the updated NID creation version. This should correctly handle UTF8.
508 *) Implement RFC5746. Re-enable renegotiation but require the extension
509 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
510 turns out to be a bad idea. It has been replaced by
511 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with
512 SSL_CTX_set_options(). This is really not recommended unless you
513 know what you are doing.
514 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson]
516 *) Fixes to stateless session resumption handling. Use initial_ctx when
517 issuing and attempting to decrypt tickets in case it has changed during
518 servername handling. Use a non-zero length session ID when attempting
519 stateless session resumption: this makes it possible to determine if
520 a resumption has occurred immediately after receiving server hello
521 (several places in OpenSSL subtly assume this) instead of later in
525 *) The functions ENGINE_ctrl(), OPENSSL_isservice(),
526 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
527 fixes for a few places where the return code is not checked
529 [Julia Lawall <julia@diku.dk>]
531 *) Add --strict-warnings option to Configure script to include devteam
532 warnings in other configurations.
535 *) Add support for --libdir option and LIBDIR variable in makefiles. This
536 makes it possible to install openssl libraries in locations which
537 have names other than "lib", for example "/usr/lib64" which some
539 [Steve Henson, based on patch from Jeremy Utley]
541 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
542 X690 8.9.12 and can produce some misleading textual output of OIDs.
543 [Steve Henson, reported by Dan Kaminsky]
545 *) Delete MD2 from algorithm tables. This follows the recommendation in
546 several standards that it is not used in new applications due to
547 several cryptographic weaknesses. For binary compatibility reasons
548 the MD2 API is still compiled in by default.
551 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
555 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
556 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
558 [Guenter <lists@gknw.net>]
560 *) Fix the server certificate chain building code to use X509_verify_cert(),
561 it used to have an ad-hoc builder which was unable to cope with anything
562 other than a simple chain.
563 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
565 *) Don't check self signed certificate signatures in X509_verify_cert()
566 by default (a flag can override this): it just wastes time without
567 adding any security. As a useful side effect self signed root CAs
568 with non-FIPS digests are now usable in FIPS mode.
571 *) In dtls1_process_out_of_seq_message() the check if the current message
572 is already buffered was missing. For every new message was memory
573 allocated, allowing an attacker to perform an denial of service attack
574 with sending out of seq handshake messages until there is no memory
575 left. Additionally every future messege was buffered, even if the
576 sequence number made no sense and would be part of another handshake.
577 So only messages with sequence numbers less than 10 in advance will be
578 buffered. (CVE-2009-1378)
579 [Robin Seggelmann, discovered by Daniel Mentz]
581 *) Records are buffered if they arrive with a future epoch to be
582 processed after finishing the corresponding handshake. There is
583 currently no limitation to this buffer allowing an attacker to perform
584 a DOS attack with sending records with future epochs until there is no
585 memory left. This patch adds the pqueue_size() function to detemine
586 the size of a buffer and limits the record buffer to 100 entries.
588 [Robin Seggelmann, discovered by Daniel Mentz]
590 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
591 parent structure is freed. (CVE-2009-1379)
594 *) Handle non-blocking I/O properly in SSL_shutdown() call.
595 [Darryl Miles <darryl-mailinglists@netbauds.net>]
598 [Ilya O. <vrghost@gmail.com>]
600 Changes between 0.9.8k and 0.9.8l [5 Nov 2009]
602 *) Disable renegotiation completely - this fixes a severe security
603 problem (CVE-2009-3555) at the cost of breaking all
604 renegotiation. Renegotiation can be re-enabled by setting
605 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at
606 run-time. This is really not recommended unless you know what
610 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
612 *) Don't set val to NULL when freeing up structures, it is freed up by
613 underlying code. If sizeof(void *) > sizeof(long) this can result in
614 zeroing past the valid field. (CVE-2009-0789)
615 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
617 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
618 checked correctly. This would allow some invalid signed attributes to
619 appear to verify correctly. (CVE-2009-0591)
620 [Ivan Nestlerode <inestlerode@us.ibm.com>]
622 *) Reject UniversalString and BMPString types with invalid lengths. This
623 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
624 a legal length. (CVE-2009-0590)
627 *) Set S/MIME signing as the default purpose rather than setting it
628 unconditionally. This allows applications to override it at the store
632 *) Permit restricted recursion of ASN1 strings. This is needed in practice
633 to handle some structures.
636 *) Improve efficiency of mem_gets: don't search whole buffer each time
638 [Jeremy Shapiro <jnshapir@us.ibm.com>]
640 *) New -hex option for openssl rand.
643 *) Print out UTF8String and NumericString when parsing ASN1.
646 *) Support NumericString type for name components.
649 *) Allow CC in the environment to override the automatically chosen
650 compiler. Note that nothing is done to ensure flags work with the
654 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
656 *) Properly check EVP_VerifyFinal() and similar return values
658 [Ben Laurie, Bodo Moeller, Google Security Team]
660 *) Enable TLS extensions by default.
663 *) Allow the CHIL engine to be loaded, whether the application is
664 multithreaded or not. (This does not release the developer from the
665 obligation to set up the dynamic locking callbacks.)
666 [Sander Temme <sander@temme.net>]
668 *) Use correct exit code if there is an error in dgst command.
669 [Steve Henson; problem pointed out by Roland Dirlewanger]
671 *) Tweak Configure so that you need to say "experimental-jpake" to enable
672 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
675 *) Add experimental JPAKE support, including demo authentication in
676 s_client and s_server.
679 *) Set the comparison function in v3_addr_canonize().
680 [Rob Austein <sra@hactrn.net>]
682 *) Add support for XMPP STARTTLS in s_client.
683 [Philip Paeps <philip@freebsd.org>]
685 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
686 to ensure that even with this option, only ciphersuites in the
687 server's preference list will be accepted. (Note that the option
688 applies only when resuming a session, so the earlier behavior was
689 just about the algorithm choice for symmetric cryptography.)
692 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
694 *) Fix NULL pointer dereference if a DTLS server received
695 ChangeCipherSpec as first record (CVE-2009-1386).
698 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
699 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
702 *) The fix in 0.9.8c that supposedly got rid of unsafe
703 double-checked locking was incomplete for RSA blinding,
704 addressing just one layer of what turns out to have been
705 doubly unsafe triple-checked locking.
707 So now fix this for real by retiring the MONT_HELPER macro
708 in crypto/rsa/rsa_eay.c.
710 [Bodo Moeller; problem pointed out by Marius Schilder]
712 *) Various precautionary measures:
714 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
716 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
717 (NB: This would require knowledge of the secret session ticket key
718 to exploit, in which case you'd be SOL either way.)
720 - Change bn_nist.c so that it will properly handle input BIGNUMs
721 outside the expected range.
723 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
726 [Neel Mehta, Bodo Moeller]
728 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
729 the load fails. Useful for distros.
730 [Ben Laurie and the FreeBSD team]
732 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
735 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
738 *) Expand ENGINE to support engine supplied SSL client certificate functions.
740 This work was sponsored by Logica.
743 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
744 keystores. Support for SSL/TLS client authentication too.
745 Not compiled unless enable-capieng specified to Configure.
747 This work was sponsored by Logica.
750 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
751 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
752 attribute creation routines such as certifcate requests and PKCS#12
756 Changes between 0.9.8g and 0.9.8h [28 May 2008]
758 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
759 handshake which could lead to a cilent crash as found using the
760 Codenomicon TLS test suite (CVE-2008-1672)
761 [Steve Henson, Mark Cox]
763 *) Fix double free in TLS server name extensions which could lead to
764 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
767 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
769 Clear the error queue to ensure that error entries left from
770 older function calls do not interfere with the correct operation.
771 [Lutz Jaenicke, Erik de Castro Lopo]
773 *) Remove root CA certificates of commercial CAs:
775 The OpenSSL project does not recommend any specific CA and does not
776 have any policy with respect to including or excluding any CA.
777 Therefore it does not make any sense to ship an arbitrary selection
778 of root CA certificates with the OpenSSL software.
781 *) RSA OAEP patches to fix two separate invalid memory reads.
782 The first one involves inputs when 'lzero' is greater than
783 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
784 before the beginning of from). The second one involves inputs where
785 the 'db' section contains nothing but zeroes (there is a one-byte
786 invalid read after the end of 'db').
787 [Ivan Nestlerode <inestlerode@us.ibm.com>]
789 *) Partial backport from 0.9.9-dev:
791 Introduce bn_mul_mont (dedicated Montgomery multiplication
792 procedure) as a candidate for BIGNUM assembler implementation.
793 While 0.9.9-dev uses assembler for various architectures, only
794 x86_64 is available by default here in the 0.9.8 branch, and
795 32-bit x86 is available through a compile-time setting.
797 To try the 32-bit x86 assembler implementation, use Configure
798 option "enable-montasm" (which exists only for this backport).
800 As "enable-montasm" for 32-bit x86 disclaims code stability
801 anyway, in this constellation we activate additional code
802 backported from 0.9.9-dev for further performance improvements,
803 namely BN_from_montgomery_word. (To enable this otherwise,
804 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
806 [Andy Polyakov (backport partially by Bodo Moeller)]
808 *) Add TLS session ticket callback. This allows an application to set
809 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
810 values. This is useful for key rollover for example where several key
811 sets may exist with different names.
814 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
815 This was broken until now in 0.9.8 releases, such that the only way
816 a registered ENGINE could be used (assuming it initialises
817 successfully on the host) was to explicitly set it as the default
818 for the relevant algorithms. This is in contradiction with 0.9.7
819 behaviour and the documentation. With this fix, when an ENGINE is
820 registered into a given algorithm's table of implementations, the
821 'uptodate' flag is reset so that auto-discovery will be used next
822 time a new context for that algorithm attempts to select an
824 [Ian Lister (tweaked by Geoff Thorpe)]
826 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
827 implemention in the following ways:
829 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
832 Lack of BER streaming support means one pass streaming processing is
833 only supported if data is detached: setting the streaming flag is
834 ignored for embedded content.
836 CMS support is disabled by default and must be explicitly enabled
837 with the enable-cms configuration option.
840 *) Update the GMP engine glue to do direct copies between BIGNUM and
841 mpz_t when openssl and GMP use the same limb size. Otherwise the
842 existing "conversion via a text string export" trick is still used.
843 [Paul Sheer <paulsheer@gmail.com>]
845 *) Zlib compression BIO. This is a filter BIO which compressed and
846 uncompresses any data passed through it.
849 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
850 RFC3394 compatible AES key wrapping.
853 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
854 sets string data without copying. X509_ALGOR_set0() and
855 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
856 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
857 from an X509_ATTRIBUTE structure optionally checking it occurs only
858 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
862 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
863 to get the expected BN_FLG_CONSTTIME behavior.
864 [Bodo Moeller (Google)]
868 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
869 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
870 - added some more tests to do_tests.pl
871 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
872 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
873 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
874 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
875 - various changes to netware.pl to enable gcc-cross builds on Win32
877 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
878 - various changes to fix missing prototype warnings
879 - fixed x86nasm.pl to create correct asm files for NASM COFF output
880 - added AES, WHIRLPOOL and CPUID assembler code to build files
881 - added missing AES assembler make rules to mk1mf.pl
882 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
883 [Guenter Knauf <eflash@gmx.net>]
885 *) Implement certificate status request TLS extension defined in RFC3546.
886 A client can set the appropriate parameters and receive the encoded
887 OCSP response via a callback. A server can query the supplied parameters
888 and set the encoded OCSP response in the callback. Add simplified examples
889 to s_client and s_server.
892 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
895 + Binary incompatibility of ssl_ctx_st structure
896 + DTLS interoperation with non-compliant servers
897 + Don't call get_session_cb() without proposed session
898 + Fix ia64 assembler code
899 [Andy Polyakov, Steve Henson]
901 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
903 *) DTLS Handshake overhaul. There were longstanding issues with
904 OpenSSL DTLS implementation, which were making it impossible for
905 RFC 4347 compliant client to communicate with OpenSSL server.
906 Unfortunately just fixing these incompatibilities would "cut off"
907 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
908 server keeps tolerating non RFC compliant syntax. The opposite is
909 not true, 0.9.8f client can not communicate with earlier server.
910 This update even addresses CVE-2007-4995.
913 *) Changes to avoid need for function casts in OpenSSL: some compilers
914 (gcc 4.2 and later) reject their use.
915 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
918 *) Add RFC4507 support to OpenSSL. This includes the corrections in
919 RFC4507bis. The encrypted ticket format is an encrypted encoded
920 SSL_SESSION structure, that way new session features are automatically
923 If a client application caches session in an SSL_SESSION structure
924 support is transparent because tickets are now stored in the encoded
927 The SSL_CTX structure automatically generates keys for ticket
928 protection in servers so again support should be possible
929 with no application modification.
931 If a client or server wishes to disable RFC4507 support then the option
932 SSL_OP_NO_TICKET can be set.
934 Add a TLS extension debugging callback to allow the contents of any client
935 or server extensions to be examined.
937 This work was sponsored by Google.
940 *) Add initial support for TLS extensions, specifically for the server_name
941 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
942 have new members for a host name. The SSL data structure has an
943 additional member SSL_CTX *initial_ctx so that new sessions can be
944 stored in that context to allow for session resumption, even after the
945 SSL has been switched to a new SSL_CTX in reaction to a client's
946 server_name extension.
948 New functions (subject to change):
951 SSL_get_servername_type()
954 New CTRL codes and macros (subject to change):
956 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
957 - SSL_CTX_set_tlsext_servername_callback()
958 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
959 - SSL_CTX_set_tlsext_servername_arg()
960 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
962 openssl s_client has a new '-servername ...' option.
964 openssl s_server has new options '-servername_host ...', '-cert2 ...',
965 '-key2 ...', '-servername_fatal' (subject to change). This allows
966 testing the HostName extension for a specific single host name ('-cert'
967 and '-key' remain fallbacks for handshakes without HostName
968 negotiation). If the unrecogninzed_name alert has to be sent, this by
969 default is a warning; it becomes fatal with the '-servername_fatal'
972 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
974 *) Add AES and SSE2 assembly language support to VC++ build.
977 *) Mitigate attack on final subtraction in Montgomery reduction.
980 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
981 (which previously caused an internal error).
984 *) Squeeze another 10% out of IGE mode when in != out.
987 *) AES IGE mode speedup.
988 [Dean Gaudet (Google)]
990 *) Add the Korean symmetric 128-bit cipher SEED (see
991 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
992 add SEED ciphersuites from RFC 4162:
994 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
995 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
996 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
997 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
999 To minimize changes between patchlevels in the OpenSSL 0.9.8
1000 series, SEED remains excluded from compilation unless OpenSSL
1001 is configured with 'enable-seed'.
1002 [KISA, Bodo Moeller]
1004 *) Mitigate branch prediction attacks, which can be practical if a
1005 single processor is shared, allowing a spy process to extract
1006 information. For detailed background information, see
1007 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
1008 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
1009 and Necessary Software Countermeasures"). The core of the change
1010 are new versions BN_div_no_branch() and
1011 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
1012 respectively, which are slower, but avoid the security-relevant
1013 conditional branches. These are automatically called by BN_div()
1014 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
1015 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
1016 remove a conditional branch.
1018 BN_FLG_CONSTTIME is the new name for the previous
1019 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
1020 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
1021 in the exponent causes BN_mod_exp_mont() to use the alternative
1022 implementation in BN_mod_exp_mont_consttime().) The old name
1023 remains as a deprecated alias.
1025 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
1026 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
1027 constant-time implementations for more than just exponentiation.
1028 Here too the old name is kept as a deprecated alias.
1030 BN_BLINDING_new() will now use BN_dup() for the modulus so that
1031 the BN_BLINDING structure gets an independent copy of the
1032 modulus. This means that the previous "BIGNUM *m" argument to
1033 BN_BLINDING_new() and to BN_BLINDING_create_param() now
1034 essentially becomes "const BIGNUM *m", although we can't actually
1035 change this in the header file before 0.9.9. It allows
1036 RSA_setup_blinding() to use BN_with_flags() on the modulus to
1037 enable BN_FLG_CONSTTIME.
1039 [Matthew D Wood (Intel Corp)]
1041 *) In the SSL/TLS server implementation, be strict about session ID
1042 context matching (which matters if an application uses a single
1043 external cache for different purposes). Previously,
1044 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
1045 set. This did ensure strict client verification, but meant that,
1046 with applications using a single external cache for quite
1047 different requirements, clients could circumvent ciphersuite
1048 restrictions for a given session ID context by starting a session
1049 in a different context.
1052 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1053 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1054 authentication-only ciphersuites.
1057 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
1058 not complete and could lead to a possible single byte overflow
1059 (CVE-2007-5135) [Ben Laurie]
1061 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
1063 *) Since AES128 and AES256 (and similarly Camellia128 and
1064 Camellia256) share a single mask bit in the logic of
1065 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1066 kludge to work properly if AES128 is available and AES256 isn't
1067 (or if Camellia128 is available and Camellia256 isn't).
1070 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
1071 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
1072 When a point or a seed is encoded in a BIT STRING, we need to
1073 prevent the removal of trailing zero bits to get the proper DER
1074 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
1075 of a NamedBitList, for which trailing 0 bits need to be removed.)
1078 *) Have SSL/TLS server implementation tolerate "mismatched" record
1079 protocol version while receiving ClientHello even if the
1080 ClientHello is fragmented. (The server can't insist on the
1081 particular protocol version it has chosen before the ServerHello
1082 message has informed the client about his choice.)
1085 *) Add RFC 3779 support.
1086 [Rob Austein for ARIN, Ben Laurie]
1088 *) Load error codes if they are not already present instead of using a
1089 static variable. This allows them to be cleanly unloaded and reloaded.
1090 Improve header file function name parsing.
1093 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
1094 or CAPABILITY handshake as required by RFCs.
1097 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
1099 *) Introduce limits to prevent malicious keys being able to
1100 cause a denial of service. (CVE-2006-2940)
1101 [Steve Henson, Bodo Moeller]
1103 *) Fix ASN.1 parsing of certain invalid structures that can result
1104 in a denial of service. (CVE-2006-2937) [Steve Henson]
1106 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1107 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1109 *) Fix SSL client code which could crash if connecting to a
1110 malicious SSLv2 server. (CVE-2006-4343)
1111 [Tavis Ormandy and Will Drewry, Google Security Team]
1113 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
1114 match only those. Before that, "AES256-SHA" would be interpreted
1115 as a pattern and match "AES128-SHA" too (since AES128-SHA got
1116 the same strength classification in 0.9.7h) as we currently only
1117 have a single AES bit in the ciphersuite description bitmap.
1118 That change, however, also applied to ciphersuite strings such as
1119 "RC4-MD5" that intentionally matched multiple ciphersuites --
1120 namely, SSL 2.0 ciphersuites in addition to the more common ones
1121 from SSL 3.0/TLS 1.0.
1123 So we change the selection algorithm again: Naming an explicit
1124 ciphersuite selects this one ciphersuite, and any other similar
1125 ciphersuite (same bitmap) from *other* protocol versions.
1126 Thus, "RC4-MD5" again will properly select both the SSL 2.0
1127 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
1129 Since SSL 2.0 does not have any ciphersuites for which the
1130 128/256 bit distinction would be relevant, this works for now.
1131 The proper fix will be to use different bits for AES128 and
1132 AES256, which would have avoided the problems from the beginning;
1133 however, bits are scarce, so we can only do this in a new release
1134 (not just a patchlevel) when we can change the SSL_CIPHER
1135 definition to split the single 'unsigned long mask' bitmap into
1136 multiple values to extend the available space.
1140 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
1142 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1143 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1145 *) Add AES IGE and biIGE modes.
1148 *) Change the Unix randomness entropy gathering to use poll() when
1149 possible instead of select(), since the latter has some
1150 undesirable limitations.
1151 [Darryl Miles via Richard Levitte and Bodo Moeller]
1153 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
1154 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
1155 cannot be implicitly activated as part of, e.g., the "AES" alias.
1156 However, please upgrade to OpenSSL 0.9.9[-dev] for
1157 non-experimental use of the ECC ciphersuites to get TLS extension
1158 support, which is required for curve and point format negotiation
1159 to avoid potential handshake problems.
1162 *) Disable rogue ciphersuites:
1164 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1165 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1166 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1168 The latter two were purportedly from
1169 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1172 Also deactivate the remaining ciphersuites from
1173 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1174 unofficial, and the ID has long expired.
1177 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1178 dual-core machines) and other potential thread-safety issues.
1181 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
1182 versions), which is now available for royalty-free use
1183 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
1184 Also, add Camellia TLS ciphersuites from RFC 4132.
1186 To minimize changes between patchlevels in the OpenSSL 0.9.8
1187 series, Camellia remains excluded from compilation unless OpenSSL
1188 is configured with 'enable-camellia'.
1191 *) Disable the padding bug check when compression is in use. The padding
1192 bug check assumes the first packet is of even length, this is not
1193 necessarily true if compresssion is enabled and can result in false
1194 positives causing handshake failure. The actual bug test is ancient
1195 code so it is hoped that implementations will either have fixed it by
1196 now or any which still have the bug do not support compression.
1199 Changes between 0.9.8a and 0.9.8b [04 May 2006]
1201 *) When applying a cipher rule check to see if string match is an explicit
1202 cipher suite and only match that one cipher suite if it is.
1205 *) Link in manifests for VC++ if needed.
1206 [Austin Ziegler <halostatue@gmail.com>]
1208 *) Update support for ECC-based TLS ciphersuites according to
1209 draft-ietf-tls-ecc-12.txt with proposed changes (but without
1210 TLS extensions, which are supported starting with the 0.9.9
1211 branch, not in the OpenSSL 0.9.8 branch).
1214 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
1215 opaque EVP_CIPHER_CTX handling.
1218 *) Fixes and enhancements to zlib compression code. We now only use
1219 "zlib1.dll" and use the default __cdecl calling convention on Win32
1220 to conform with the standards mentioned here:
1221 http://www.zlib.net/DLL_FAQ.txt
1222 Static zlib linking now works on Windows and the new --with-zlib-include
1223 --with-zlib-lib options to Configure can be used to supply the location
1224 of the headers and library. Gracefully handle case where zlib library
1228 *) Several fixes and enhancements to the OID generation code. The old code
1229 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
1230 handle numbers larger than ULONG_MAX, truncated printing and had a
1231 non standard OBJ_obj2txt() behaviour.
1234 *) Add support for building of engines under engine/ as shared libraries
1235 under VC++ build system.
1238 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
1239 Hopefully, we will not see any false combination of paths any more.
1242 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
1244 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1245 (part of SSL_OP_ALL). This option used to disable the
1246 countermeasure against man-in-the-middle protocol-version
1247 rollback in the SSL 2.0 server implementation, which is a bad
1248 idea. (CVE-2005-2969)
1250 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1251 for Information Security, National Institute of Advanced Industrial
1252 Science and Technology [AIST], Japan)]
1254 *) Add two function to clear and return the verify parameter flags.
1257 *) Keep cipherlists sorted in the source instead of sorting them at
1258 runtime, thus removing the need for a lock.
1261 *) Avoid some small subgroup attacks in Diffie-Hellman.
1262 [Nick Mathewson and Ben Laurie]
1264 *) Add functions for well-known primes.
1267 *) Extended Windows CE support.
1268 [Satoshi Nakamura and Andy Polyakov]
1270 *) Initialize SSL_METHOD structures at compile time instead of during
1271 runtime, thus removing the need for a lock.
1274 *) Make PKCS7_decrypt() work even if no certificate is supplied by
1275 attempting to decrypt each encrypted key in turn. Add support to
1279 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
1281 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
1284 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
1287 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
1288 key into the same file any more.
1291 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
1294 *) Add -utf8 command line and config file option to 'ca'.
1295 [Stefan <stf@udoma.org]
1297 *) Removed the macro des_crypt(), as it seems to conflict with some
1298 libraries. Use DES_crypt().
1301 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
1302 involves renaming the source and generated shared-libs for
1303 both. The engines will accept the corrected or legacy ids
1304 ('ncipher' and '4758_cca' respectively) when binding. NB,
1305 this only applies when building 'shared'.
1306 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
1308 *) Add attribute functions to EVP_PKEY structure. Modify
1309 PKCS12_create() to recognize a CSP name attribute and
1310 use it. Make -CSP option work again in pkcs12 utility.
1313 *) Add new functionality to the bn blinding code:
1314 - automatic re-creation of the BN_BLINDING parameters after
1315 a fixed number of uses (currently 32)
1316 - add new function for parameter creation
1317 - introduce flags to control the update behaviour of the
1318 BN_BLINDING parameters
1319 - hide BN_BLINDING structure
1320 Add a second BN_BLINDING slot to the RSA structure to improve
1321 performance when a single RSA object is shared among several
1325 *) Add support for DTLS.
1326 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
1328 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
1329 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
1332 *) Remove buggy and incompletet DH cert support from
1333 ssl/ssl_rsa.c and ssl/s3_both.c
1336 *) Use SHA-1 instead of MD5 as the default digest algorithm for
1337 the apps/openssl applications.
1340 *) Compile clean with "-Wall -Wmissing-prototypes
1341 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
1342 DEBUG_SAFESTACK must also be set.
1345 *) Change ./Configure so that certain algorithms can be disabled by default.
1346 The new counterpiece to "no-xxx" is "enable-xxx".
1348 The patented RC5 and MDC2 algorithms will now be disabled unless
1349 "enable-rc5" and "enable-mdc2", respectively, are specified.
1351 (IDEA remains enabled despite being patented. This is because IDEA
1352 is frequently required for interoperability, and there is no license
1353 fee for non-commercial use. As before, "no-idea" can be used to
1354 avoid this algorithm.)
1358 *) Add processing of proxy certificates (see RFC 3820). This work was
1359 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
1360 EGEE (Enabling Grids for E-science in Europe).
1363 *) RC4 performance overhaul on modern architectures/implementations, such
1364 as Intel P4, IA-64 and AMD64.
1367 *) New utility extract-section.pl. This can be used specify an alternative
1368 section number in a pod file instead of having to treat each file as
1369 a separate case in Makefile. This can be done by adding two lines to the
1372 =for comment openssl_section:XXX
1374 The blank line is mandatory.
1378 *) New arguments -certform, -keyform and -pass for s_client and s_server
1379 to allow alternative format key and certificate files and passphrase
1383 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
1384 update associated structures and add various utility functions.
1386 Add new policy related verify parameters, include policy checking in
1387 standard verify code. Enhance 'smime' application with extra parameters
1388 to support policy checking and print out.
1391 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
1392 Nehemiah processors. These extensions support AES encryption in hardware
1393 as well as RNG (though RNG support is currently disabled).
1394 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
1396 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
1399 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
1400 [Andy Polyakov and a number of other people]
1402 *) Improved PowerPC platform support. Most notably BIGNUM assembler
1403 implementation contributed by IBM.
1404 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
1406 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
1407 exponent rather than 'unsigned long'. There is a corresponding change to
1408 the new 'rsa_keygen' element of the RSA_METHOD structure.
1409 [Jelte Jansen, Geoff Thorpe]
1411 *) Functionality for creating the initial serial number file is now
1412 moved from CA.pl to the 'ca' utility with a new option -create_serial.
1414 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
1415 number file to 1, which is bound to cause problems. To avoid
1416 the problems while respecting compatibility between different 0.9.7
1417 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
1418 CA.pl for serial number initialization. With the new release 0.9.8,
1419 we can fix the problem directly in the 'ca' utility.)
1422 *) Reduced header interdepencies by declaring more opaque objects in
1423 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
1424 give fewer recursive includes, which could break lazy source code - so
1425 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
1426 developers should define this symbol when building and using openssl to
1427 ensure they track the recommended behaviour, interfaces, [etc], but
1428 backwards-compatible behaviour prevails when this isn't defined.
1431 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
1434 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
1435 This will generate a random key of the appropriate length based on the
1436 cipher context. The EVP_CIPHER can provide its own random key generation
1437 routine to support keys of a specific form. This is used in the des and
1438 3des routines to generate a key of the correct parity. Update S/MIME
1439 code to use new functions and hence generate correct parity DES keys.
1440 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
1441 valid (weak or incorrect parity).
1444 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
1445 as looking them up. This is useful when the verified structure may contain
1446 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
1447 present unless the new PKCS7_NO_CRL flag is asserted.
1450 *) Extend ASN1 oid configuration module. It now additionally accepts the
1453 shortName = some long name, 1.2.3.4
1456 *) Reimplemented the BN_CTX implementation. There is now no more static
1457 limitation on the number of variables it can handle nor the depth of the
1458 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
1459 information can now expand as required, and rather than having a single
1460 static array of bignums, BN_CTX now uses a linked-list of such arrays
1461 allowing it to expand on demand whilst maintaining the usefulness of
1462 BN_CTX's "bundling".
1465 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
1466 to allow all RSA operations to function using a single BN_CTX.
1469 *) Preliminary support for certificate policy evaluation and checking. This
1470 is initially intended to pass the tests outlined in "Conformance Testing
1471 of Relying Party Client Certificate Path Processing Logic" v1.07.
1474 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
1475 remained unused and not that useful. A variety of other little bignum
1476 tweaks and fixes have also been made continuing on from the audit (see
1480 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
1481 associated ASN1, EVP and SSL functions and old ASN1 macros.
1484 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
1485 and this should never fail. So the return value from the use of
1486 BN_set_word() (which can fail due to needless expansion) is now deprecated;
1487 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
1490 *) BN_CTX_get() should return zero-valued bignums, providing the same
1491 initialised value as BN_new().
1492 [Geoff Thorpe, suggested by Ulf Möller]
1494 *) Support for inhibitAnyPolicy certificate extension.
1497 *) An audit of the BIGNUM code is underway, for which debugging code is
1498 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
1499 is considered valid when processing BIGNUMs, and causes execution to
1500 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
1501 further steps are taken to deliberately pollute unused data in BIGNUM
1502 structures to try and expose faulty code further on. For now, openssl will
1503 (in its default mode of operation) continue to tolerate the inconsistent
1504 forms that it has tolerated in the past, but authors and packagers should
1505 consider trying openssl and their own applications when compiled with
1506 these debugging symbols defined. It will help highlight potential bugs in
1507 their own code, and will improve the test coverage for OpenSSL itself. At
1508 some point, these tighter rules will become openssl's default to improve
1509 maintainability, though the assert()s and other overheads will remain only
1510 in debugging configurations. See bn.h for more details.
1511 [Geoff Thorpe, Nils Larsch, Ulf Möller]
1513 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
1514 that can only be obtained through BN_CTX_new() (which implicitly
1515 initialises it). The presence of this function only made it possible
1516 to overwrite an existing structure (and cause memory leaks).
1519 *) Because of the callback-based approach for implementing LHASH as a
1520 template type, lh_insert() adds opaque objects to hash-tables and
1521 lh_doall() or lh_doall_arg() are typically used with a destructor callback
1522 to clean up those corresponding objects before destroying the hash table
1523 (and losing the object pointers). So some over-zealous constifications in
1524 LHASH have been relaxed so that lh_insert() does not take (nor store) the
1525 objects as "const" and the lh_doall[_arg] callback wrappers are not
1526 prototyped to have "const" restrictions on the object pointers they are
1527 given (and so aren't required to cast them away any more).
1530 *) The tmdiff.h API was so ugly and minimal that our own timing utility
1531 (speed) prefers to use its own implementation. The two implementations
1532 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
1533 its object type properly exposed (MS_TM) instead of casting to/from "char
1534 *". This may still change yet if someone realises MS_TM and "ms_time_***"
1535 aren't necessarily the greatest nomenclatures - but this is what was used
1536 internally to the implementation so I've used that for now.
1539 *) Ensure that deprecated functions do not get compiled when
1540 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
1541 the self-tests were still using deprecated key-generation functions so
1542 these have been updated also.
1545 *) Reorganise PKCS#7 code to separate the digest location functionality
1546 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
1547 New function PKCS7_set_digest() to set the digest type for PKCS#7
1548 digestedData type. Add additional code to correctly generate the
1549 digestedData type and add support for this type in PKCS7 initialization
1553 *) New function PKCS7_set0_type_other() this initializes a PKCS7
1554 structure of type "other".
1557 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
1558 sure the loop does correctly stop and breaking ("division by zero")
1559 modulus operations are not performed. The (pre-generated) prime
1560 table crypto/bn/bn_prime.h was already correct, but it could not be
1561 re-generated on some platforms because of the "division by zero"
1562 situation in the script.
1563 [Ralf S. Engelschall]
1565 *) Update support for ECC-based TLS ciphersuites according to
1566 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
1567 SHA-1 now is only used for "small" curves (where the
1568 representation of a field element takes up to 24 bytes); for
1569 larger curves, the field element resulting from ECDH is directly
1570 used as premaster secret.
1571 [Douglas Stebila (Sun Microsystems Laboratories)]
1573 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
1574 curve secp160r1 to the tests.
1575 [Douglas Stebila (Sun Microsystems Laboratories)]
1577 *) Add the possibility to load symbols globally with DSO.
1578 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
1580 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
1581 control of the error stack.
1584 *) Add support for STORE in ENGINE.
1587 *) Add the STORE type. The intention is to provide a common interface
1588 to certificate and key stores, be they simple file-based stores, or
1589 HSM-type store, or LDAP stores, or...
1590 NOTE: The code is currently UNTESTED and isn't really used anywhere.
1593 *) Add a generic structure called OPENSSL_ITEM. This can be used to
1594 pass a list of arguments to any function as well as provide a way
1595 for a function to pass data back to the caller.
1598 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
1599 works like BUF_strdup() but can be used to duplicate a portion of
1600 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
1604 *) Add the function sk_find_ex() which works like sk_find(), but will
1605 return an index to an element even if an exact match couldn't be
1606 found. The index is guaranteed to point at the element where the
1607 searched-for key would be inserted to preserve sorting order.
1610 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
1611 takes an extra flags argument for optional functionality. Currently,
1612 the following flags are defined:
1614 OBJ_BSEARCH_VALUE_ON_NOMATCH
1615 This one gets OBJ_bsearch_ex() to return a pointer to the first
1616 element where the comparing function returns a negative or zero
1619 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
1620 This one gets OBJ_bsearch_ex() to return a pointer to the first
1621 element where the comparing function returns zero. This is useful
1622 if there are more than one element where the comparing function
1626 *) Make it possible to create self-signed certificates with 'openssl ca'
1627 in such a way that the self-signed certificate becomes part of the
1628 CA database and uses the same mechanisms for serial number generation
1629 as all other certificate signing. The new flag '-selfsign' enables
1630 this functionality. Adapt CA.sh and CA.pl.in.
1633 *) Add functionality to check the public key of a certificate request
1634 against a given private. This is useful to check that a certificate
1635 request can be signed by that key (self-signing).
1638 *) Make it possible to have multiple active certificates with the same
1639 subject in the CA index file. This is done only if the keyword
1640 'unique_subject' is set to 'no' in the main CA section (default
1641 if 'CA_default') of the configuration file. The value is saved
1642 with the database itself in a separate index attribute file,
1643 named like the index file with '.attr' appended to the name.
1646 *) Generate muti valued AVAs using '+' notation in config files for
1650 *) Support for nameConstraints certificate extension.
1653 *) Support for policyConstraints certificate extension.
1656 *) Support for policyMappings certificate extension.
1659 *) Make sure the default DSA_METHOD implementation only uses its
1660 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
1661 and change its own handlers to be NULL so as to remove unnecessary
1662 indirection. This lets alternative implementations fallback to the
1663 default implementation more easily.
1666 *) Support for directoryName in GeneralName related extensions
1670 *) Make it possible to link applications using Makefile.shared.
1671 Make that possible even when linking against static libraries!
1674 *) Support for single pass processing for S/MIME signing. This now
1675 means that S/MIME signing can be done from a pipe, in addition
1676 cleartext signing (multipart/signed type) is effectively streaming
1677 and the signed data does not need to be all held in memory.
1679 This is done with a new flag PKCS7_STREAM. When this flag is set
1680 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
1681 is done after the data is output (and digests calculated) in
1682 SMIME_write_PKCS7().
1685 *) Add full support for -rpath/-R, both in shared libraries and
1686 applications, at least on the platforms where it's known how
1690 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
1691 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
1692 will now compute a table of multiples of the generator that
1693 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
1694 faster (notably in the case of a single point multiplication,
1695 scalar * generator).
1696 [Nils Larsch, Bodo Moeller]
1698 *) IPv6 support for certificate extensions. The various extensions
1699 which use the IP:a.b.c.d can now take IPv6 addresses using the
1700 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
1704 *) Added an ENGINE that implements RSA by performing private key
1705 exponentiations with the GMP library. The conversions to and from
1706 GMP's mpz_t format aren't optimised nor are any montgomery forms
1707 cached, and on x86 it appears OpenSSL's own performance has caught up.
1708 However there are likely to be other architectures where GMP could
1709 provide a boost. This ENGINE is not built in by default, but it can be
1710 specified at Configure time and should be accompanied by the necessary
1711 linker additions, eg;
1712 ./config -DOPENSSL_USE_GMP -lgmp
1715 *) "openssl engine" will not display ENGINE/DSO load failure errors when
1716 testing availability of engines with "-t" - the old behaviour is
1717 produced by increasing the feature's verbosity with "-tt".
1720 *) ECDSA routines: under certain error conditions uninitialized BN objects
1721 could be freed. Solution: make sure initialization is performed early
1722 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
1726 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
1727 and DH_METHOD (eg. by ENGINE implementations) to override the normal
1728 software implementations. For DSA and DH, parameter generation can
1729 also be overriden by providing the appropriate method callbacks.
1732 *) Change the "progress" mechanism used in key-generation and
1733 primality testing to functions that take a new BN_GENCB pointer in
1734 place of callback/argument pairs. The new API functions have "_ex"
1735 postfixes and the older functions are reimplemented as wrappers for
1736 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
1737 declarations of the old functions to help (graceful) attempts to
1738 migrate to the new functions. Also, the new key-generation API
1739 functions operate on a caller-supplied key-structure and return
1740 success/failure rather than returning a key or NULL - this is to
1741 help make "keygen" another member function of RSA_METHOD etc.
1743 Example for using the new callback interface:
1745 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
1749 BN_GENCB_set(&my_cb, my_callback, my_arg);
1751 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
1752 /* For the meaning of a, b in calls to my_callback(), see the
1753 * documentation of the function that calls the callback.
1754 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
1755 * my_callback should return 1 if it wants BN_is_prime_ex()
1756 * to continue, or 0 to stop.
1761 *) Change the ZLIB compression method to be stateful, and make it
1762 available to TLS with the number defined in
1763 draft-ietf-tls-compression-04.txt.
1766 *) Add the ASN.1 structures and functions for CertificatePair, which
1767 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
1769 CertificatePair ::= SEQUENCE {
1770 forward [0] Certificate OPTIONAL,
1771 reverse [1] Certificate OPTIONAL,
1772 -- at least one of the pair shall be present -- }
1774 Also implement the PEM functions to read and write certificate
1775 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
1777 This needed to be defined, mostly for the sake of the LDAP
1778 attribute crossCertificatePair, but may prove useful elsewhere as
1782 *) Make it possible to inhibit symlinking of shared libraries in
1783 Makefile.shared, for Cygwin's sake.
1786 *) Extend the BIGNUM API by creating a function
1787 void BN_set_negative(BIGNUM *a, int neg);
1788 and a macro that behave like
1789 int BN_is_negative(const BIGNUM *a);
1791 to avoid the need to access 'a->neg' directly in applications.
1794 *) Implement fast modular reduction for pseudo-Mersenne primes
1795 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
1796 EC_GROUP_new_curve_GFp() will now automatically use this
1798 [Nils Larsch <nla@trustcenter.de>]
1800 *) Add new lock type (CRYPTO_LOCK_BN).
1803 *) Change the ENGINE framework to automatically load engines
1804 dynamically from specific directories unless they could be
1805 found to already be built in or loaded. Move all the
1806 current engines except for the cryptodev one to a new
1808 The engines in engines/ are built as shared libraries if
1809 the "shared" options was given to ./Configure or ./config.
1810 Otherwise, they are inserted in libcrypto.a.
1811 /usr/local/ssl/engines is the default directory for dynamic
1812 engines, but that can be overriden at configure time through
1813 the usual use of --prefix and/or --openssldir, and at run
1814 time with the environment variable OPENSSL_ENGINES.
1815 [Geoff Thorpe and Richard Levitte]
1817 *) Add Makefile.shared, a helper makefile to build shared
1818 libraries. Addapt Makefile.org.
1821 *) Add version info to Win32 DLLs.
1822 [Peter 'Luna' Runestig" <peter@runestig.com>]
1824 *) Add new 'medium level' PKCS#12 API. Certificates and keys
1825 can be added using this API to created arbitrary PKCS#12
1826 files while avoiding the low level API.
1828 New options to PKCS12_create(), key or cert can be NULL and
1829 will then be omitted from the output file. The encryption
1830 algorithm NIDs can be set to -1 for no encryption, the mac
1831 iteration count can be set to 0 to omit the mac.
1833 Enhance pkcs12 utility by making the -nokeys and -nocerts
1834 options work when creating a PKCS#12 file. New option -nomac
1835 to omit the mac, NONE can be set for an encryption algorithm.
1836 New code is modified to use the enhanced PKCS12_create()
1837 instead of the low level API.
1840 *) Extend ASN1 encoder to support indefinite length constructed
1841 encoding. This can output sequences tags and octet strings in
1842 this form. Modify pk7_asn1.c to support indefinite length
1843 encoding. This is experimental and needs additional code to
1844 be useful, such as an ASN1 bio and some enhanced streaming
1847 Extend template encode functionality so that tagging is passed
1848 down to the template encoder.
1851 *) Let 'openssl req' fail if an argument to '-newkey' is not
1852 recognized instead of using RSA as a default.
1855 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
1856 As these are not official, they are not included in "ALL";
1857 the "ECCdraft" ciphersuite group alias can be used to select them.
1858 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
1860 *) Add ECDH engine support.
1861 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
1863 *) Add ECDH in new directory crypto/ecdh/.
1864 [Douglas Stebila (Sun Microsystems Laboratories)]
1866 *) Let BN_rand_range() abort with an error after 100 iterations
1867 without success (which indicates a broken PRNG).
1870 *) Change BN_mod_sqrt() so that it verifies that the input value
1871 is really the square of the return value. (Previously,
1872 BN_mod_sqrt would show GIGO behaviour.)
1875 *) Add named elliptic curves over binary fields from X9.62, SECG,
1876 and WAP/WTLS; add OIDs that were still missing.
1878 [Sheueling Chang Shantz and Douglas Stebila
1879 (Sun Microsystems Laboratories)]
1881 *) Extend the EC library for elliptic curves over binary fields
1882 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
1885 EC_GF2m_simple_method
1889 EC_GROUP_new_curve_GF2m
1890 EC_GROUP_set_curve_GF2m
1891 EC_GROUP_get_curve_GF2m
1892 EC_POINT_set_affine_coordinates_GF2m
1893 EC_POINT_get_affine_coordinates_GF2m
1894 EC_POINT_set_compressed_coordinates_GF2m
1896 Point compression for binary fields is disabled by default for
1897 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
1900 As binary polynomials are represented as BIGNUMs, various members
1901 of the EC_GROUP and EC_POINT data structures can be shared
1902 between the implementations for prime fields and binary fields;
1903 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
1904 are essentially identical to their ..._GFp counterparts.
1905 (For simplicity, the '..._GFp' prefix has been dropped from
1906 various internal method names.)
1908 An internal 'field_div' method (similar to 'field_mul' and
1909 'field_sqr') has been added; this is used only for binary fields.
1911 [Sheueling Chang Shantz and Douglas Stebila
1912 (Sun Microsystems Laboratories)]
1914 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
1915 through methods ('mul', 'precompute_mult').
1917 The generic implementations (now internally called 'ec_wNAF_mul'
1918 and 'ec_wNAF_precomputed_mult') remain the default if these
1919 methods are undefined.
1921 [Sheueling Chang Shantz and Douglas Stebila
1922 (Sun Microsystems Laboratories)]
1924 *) New function EC_GROUP_get_degree, which is defined through
1925 EC_METHOD. For curves over prime fields, this returns the bit
1926 length of the modulus.
1928 [Sheueling Chang Shantz and Douglas Stebila
1929 (Sun Microsystems Laboratories)]
1931 *) New functions EC_GROUP_dup, EC_POINT_dup.
1932 (These simply call ..._new and ..._copy).
1934 [Sheueling Chang Shantz and Douglas Stebila
1935 (Sun Microsystems Laboratories)]
1937 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
1938 Polynomials are represented as BIGNUMs (where the sign bit is not
1939 used) in the following functions [macros]:
1942 BN_GF2m_sub [= BN_GF2m_add]
1943 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
1944 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
1945 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
1947 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
1948 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
1949 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
1950 BN_GF2m_cmp [= BN_ucmp]
1952 (Note that only the 'mod' functions are actually for fields GF(2^m).
1953 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
1955 For some functions, an the irreducible polynomial defining a
1956 field can be given as an 'unsigned int[]' with strictly
1957 decreasing elements giving the indices of those bits that are set;
1958 i.e., p[] represents the polynomial
1959 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
1961 p[0] > p[1] > ... > p[k] = 0.
1962 This applies to the following functions:
1967 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
1968 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
1970 BN_GF2m_mod_sqrt_arr
1971 BN_GF2m_mod_solve_quad_arr
1975 Conversion can be performed by the following functions:
1980 bntest.c has additional tests for binary polynomial arithmetic.
1982 Two implementations for BN_GF2m_mod_div() are available.
1983 The default algorithm simply uses BN_GF2m_mod_inv() and
1984 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
1985 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
1986 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
1988 [Sheueling Chang Shantz and Douglas Stebila
1989 (Sun Microsystems Laboratories)]
1991 *) Add new error code 'ERR_R_DISABLED' that can be used when some
1992 functionality is disabled at compile-time.
1993 [Douglas Stebila <douglas.stebila@sun.com>]
1995 *) Change default behaviour of 'openssl asn1parse' so that more
1996 information is visible when viewing, e.g., a certificate:
1998 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
1999 mode the content of non-printable OCTET STRINGs is output in a
2000 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
2001 avoid the appearance of a printable string.
2002 [Nils Larsch <nla@trustcenter.de>]
2004 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
2006 EC_GROUP_set_asn1_flag()
2007 EC_GROUP_get_asn1_flag()
2008 EC_GROUP_set_point_conversion_form()
2009 EC_GROUP_get_point_conversion_form()
2010 These control ASN1 encoding details:
2011 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
2012 has been set to OPENSSL_EC_NAMED_CURVE.
2013 - Points are encoded in uncompressed form by default; options for
2014 asn1_for are as for point2oct, namely
2015 POINT_CONVERSION_COMPRESSED
2016 POINT_CONVERSION_UNCOMPRESSED
2017 POINT_CONVERSION_HYBRID
2019 Also add 'seed' and 'seed_len' members to EC_GROUP with access
2022 EC_GROUP_get0_seed()
2023 EC_GROUP_get_seed_len()
2024 This is used only for ASN1 purposes (so far).
2025 [Nils Larsch <nla@trustcenter.de>]
2027 *) Add 'field_type' member to EC_METHOD, which holds the NID
2028 of the appropriate field type OID. The new function
2029 EC_METHOD_get_field_type() returns this value.
2030 [Nils Larsch <nla@trustcenter.de>]
2035 EC_POINT_point2hex()
2036 EC_POINT_hex2point()
2037 providing useful interfaces to EC_POINT_point2oct() and
2038 EC_POINT_oct2point().
2039 [Nils Larsch <nla@trustcenter.de>]
2041 *) Change internals of the EC library so that the functions
2042 EC_GROUP_set_generator()
2043 EC_GROUP_get_generator()
2044 EC_GROUP_get_order()
2045 EC_GROUP_get_cofactor()
2046 are implemented directly in crypto/ec/ec_lib.c and not dispatched
2047 to methods, which would lead to unnecessary code duplication when
2048 adding different types of curves.
2049 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
2051 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
2052 arithmetic, and such that modified wNAFs are generated
2053 (which avoid length expansion in many cases).
2056 *) Add a function EC_GROUP_check_discriminant() (defined via
2057 EC_METHOD) that verifies that the curve discriminant is non-zero.
2059 Add a function EC_GROUP_check() that makes some sanity tests
2060 on a EC_GROUP, its generator and order. This includes
2061 EC_GROUP_check_discriminant().
2062 [Nils Larsch <nla@trustcenter.de>]
2064 *) Add ECDSA in new directory crypto/ecdsa/.
2066 Add applications 'openssl ecparam' and 'openssl ecdsa'
2067 (these are based on 'openssl dsaparam' and 'openssl dsa').
2069 ECDSA support is also included in various other files across the
2070 library. Most notably,
2071 - 'openssl req' now has a '-newkey ecdsa:file' option;
2072 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
2073 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
2074 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
2075 them suitable for ECDSA where domain parameters must be
2076 extracted before the specific public key;
2077 - ECDSA engine support has been added.
2078 [Nils Larsch <nla@trustcenter.de>]
2080 *) Include some named elliptic curves, and add OIDs from X9.62,
2081 SECG, and WAP/WTLS. Each curve can be obtained from the new
2083 EC_GROUP_new_by_curve_name(),
2084 and the list of available named curves can be obtained with
2085 EC_get_builtin_curves().
2086 Also add a 'curve_name' member to EC_GROUP objects, which can be
2088 EC_GROUP_set_curve_name()
2089 EC_GROUP_get_curve_name()
2090 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
2092 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
2093 was actually never needed) and in BN_mul(). The removal in BN_mul()
2094 required a small change in bn_mul_part_recursive() and the addition
2095 of the functions bn_cmp_part_words(), bn_sub_part_words() and
2096 bn_add_part_words(), which do the same thing as bn_cmp_words(),
2097 bn_sub_words() and bn_add_words() except they take arrays with
2101 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
2103 *) Cleanse PEM buffers before freeing them since they may contain
2105 [Benjamin Bennett <ben@psc.edu>]
2107 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2108 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2109 authentication-only ciphersuites.
2112 *) Since AES128 and AES256 share a single mask bit in the logic of
2113 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2114 kludge to work properly if AES128 is available and AES256 isn't.
2117 *) Expand security boundary to match 1.1.1 module.
2120 *) Remove redundant features: hash file source, editing of test vectors
2121 modify fipsld to use external fips_premain.c signature.
2124 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
2125 run algorithm test programs.
2128 *) Make algorithm test programs more tolerant of whitespace.
2131 *) Have SSL/TLS server implementation tolerate "mismatched" record
2132 protocol version while receiving ClientHello even if the
2133 ClientHello is fragmented. (The server can't insist on the
2134 particular protocol version it has chosen before the ServerHello
2135 message has informed the client about his choice.)
2138 *) Load error codes if they are not already present instead of using a
2139 static variable. This allows them to be cleanly unloaded and reloaded.
2142 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
2144 *) Introduce limits to prevent malicious keys being able to
2145 cause a denial of service. (CVE-2006-2940)
2146 [Steve Henson, Bodo Moeller]
2148 *) Fix ASN.1 parsing of certain invalid structures that can result
2149 in a denial of service. (CVE-2006-2937) [Steve Henson]
2151 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2152 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2154 *) Fix SSL client code which could crash if connecting to a
2155 malicious SSLv2 server. (CVE-2006-4343)
2156 [Tavis Ormandy and Will Drewry, Google Security Team]
2158 *) Change ciphersuite string processing so that an explicit
2159 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
2160 will no longer include "AES128-SHA"), and any other similar
2161 ciphersuite (same bitmap) from *other* protocol versions (so that
2162 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
2163 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
2164 changes from 0.9.8b and 0.9.8d.
2167 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
2169 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2170 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2172 *) Change the Unix randomness entropy gathering to use poll() when
2173 possible instead of select(), since the latter has some
2174 undesirable limitations.
2175 [Darryl Miles via Richard Levitte and Bodo Moeller]
2177 *) Disable rogue ciphersuites:
2179 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2180 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2181 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2183 The latter two were purportedly from
2184 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2187 Also deactive the remaining ciphersuites from
2188 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2189 unofficial, and the ID has long expired.
2192 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2193 dual-core machines) and other potential thread-safety issues.
2196 Changes between 0.9.7i and 0.9.7j [04 May 2006]
2198 *) Adapt fipsld and the build system to link against the validated FIPS
2199 module in FIPS mode.
2202 *) Fixes for VC++ 2005 build under Windows.
2205 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
2206 from a Windows bash shell such as MSYS. It is autodetected from the
2207 "config" script when run from a VC++ environment. Modify standard VC++
2208 build to use fipscanister.o from the GNU make build.
2211 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
2213 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
2214 The value now differs depending on if you build for FIPS or not.
2215 BEWARE! A program linked with a shared FIPSed libcrypto can't be
2216 safely run with a non-FIPSed libcrypto, as it may crash because of
2217 the difference induced by this change.
2220 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
2222 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2223 (part of SSL_OP_ALL). This option used to disable the
2224 countermeasure against man-in-the-middle protocol-version
2225 rollback in the SSL 2.0 server implementation, which is a bad
2226 idea. (CVE-2005-2969)
2228 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2229 for Information Security, National Institute of Advanced Industrial
2230 Science and Technology [AIST], Japan)]
2232 *) Minimal support for X9.31 signatures and PSS padding modes. This is
2233 mainly for FIPS compliance and not fully integrated at this stage.
2236 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
2237 the exponentiation using a fixed-length exponent. (Otherwise,
2238 the information leaked through timing could expose the secret key
2239 after many signatures; cf. Bleichenbacher's attack on DSA with
2243 *) Make a new fixed-window mod_exp implementation the default for
2244 RSA, DSA, and DH private-key operations so that the sequence of
2245 squares and multiplies and the memory access pattern are
2246 independent of the particular secret key. This will mitigate
2247 cache-timing and potential related attacks.
2249 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
2250 and this is automatically used by BN_mod_exp_mont() if the new flag
2251 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
2252 will use this BN flag for private exponents unless the flag
2253 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
2254 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
2256 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
2258 *) Change the client implementation for SSLv23_method() and
2259 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
2260 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
2261 (Previously, the SSL 2.0 backwards compatible Client Hello
2262 message format would be used even with SSL_OP_NO_SSLv2.)
2265 *) Add support for smime-type MIME parameter in S/MIME messages which some
2269 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
2270 a threadsafe manner. Modify rsa code to use new function and add calls
2271 to dsa and dh code (which had race conditions before).
2274 *) Include the fixed error library code in the C error file definitions
2275 instead of fixing them up at runtime. This keeps the error code
2276 structures constant.
2279 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
2281 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
2284 *) Fixes for newer kerberos headers. NB: the casts are needed because
2285 the 'length' field is signed on one version and unsigned on another
2286 with no (?) obvious way to tell the difference, without these VC++
2287 complains. Also the "definition" of FAR (blank) is no longer included
2288 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
2289 some needed definitions.
2292 *) Undo Cygwin change.
2295 *) Added support for proxy certificates according to RFC 3820.
2296 Because they may be a security thread to unaware applications,
2297 they must be explicitely allowed in run-time. See
2298 docs/HOWTO/proxy_certificates.txt for further information.
2301 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
2303 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
2304 server and client random values. Previously
2305 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
2306 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
2308 This change has negligible security impact because:
2310 1. Server and client random values still have 24 bytes of pseudo random
2313 2. Server and client random values are sent in the clear in the initial
2316 3. The master secret is derived using the premaster secret (48 bytes in
2317 size for static RSA ciphersuites) as well as client server and random
2320 The OpenSSL team would like to thank the UK NISCC for bringing this issue
2323 [Stephen Henson, reported by UK NISCC]
2325 *) Use Windows randomness collection on Cygwin.
2328 *) Fix hang in EGD/PRNGD query when communication socket is closed
2329 prematurely by EGD/PRNGD.
2330 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
2332 *) Prompt for pass phrases when appropriate for PKCS12 input format.
2335 *) Back-port of selected performance improvements from development
2336 branch, as well as improved support for PowerPC platforms.
2339 *) Add lots of checks for memory allocation failure, error codes to indicate
2340 failure and freeing up memory if a failure occurs.
2341 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
2343 *) Add new -passin argument to dgst.
2346 *) Perform some character comparisons of different types in X509_NAME_cmp:
2347 this is needed for some certificates that reencode DNs into UTF8Strings
2348 (in violation of RFC3280) and can't or wont issue name rollover
2352 *) Make an explicit check during certificate validation to see that
2353 the CA setting in each certificate on the chain is correct. As a
2354 side effect always do the following basic checks on extensions,
2355 not just when there's an associated purpose to the check:
2357 - if there is an unhandled critical extension (unless the user
2358 has chosen to ignore this fault)
2359 - if the path length has been exceeded (if one is set at all)
2360 - that certain extensions fit the associated purpose (if one has
2364 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
2366 *) Avoid a race condition when CRLs are checked in a multi threaded
2367 environment. This would happen due to the reordering of the revoked
2368 entries during signature checking and serial number lookup. Now the
2369 encoding is cached and the serial number sort performed under a lock.
2370 Add new STACK function sk_is_sorted().
2373 *) Add Delta CRL to the extension code.
2376 *) Various fixes to s3_pkt.c so alerts are sent properly.
2377 [David Holmes <d.holmes@f5.com>]
2379 *) Reduce the chances of duplicate issuer name and serial numbers (in
2380 violation of RFC3280) using the OpenSSL certificate creation utilities.
2381 This is done by creating a random 64 bit value for the initial serial
2382 number when a serial number file is created or when a self signed
2383 certificate is created using 'openssl req -x509'. The initial serial
2384 number file is created using 'openssl x509 -next_serial' in CA.pl
2385 rather than being initialized to 1.
2388 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
2390 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
2391 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
2392 [Joe Orton, Steve Henson]
2394 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
2396 [Joe Orton, Steve Henson]
2398 *) Make it possible to have multiple active certificates with the same
2399 subject in the CA index file. This is done only if the keyword
2400 'unique_subject' is set to 'no' in the main CA section (default
2401 if 'CA_default') of the configuration file. The value is saved
2402 with the database itself in a separate index attribute file,
2403 named like the index file with '.attr' appended to the name.
2406 *) X509 verify fixes. Disable broken certificate workarounds when
2407 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
2408 keyUsage extension present. Don't accept CRLs with unhandled critical
2409 extensions: since verify currently doesn't process CRL extensions this
2410 rejects a CRL with *any* critical extensions. Add new verify error codes
2414 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
2415 A clarification of RFC2560 will require the use of OCTET STRINGs and
2416 some implementations cannot handle the current raw format. Since OpenSSL
2417 copies and compares OCSP nonces as opaque blobs without any attempt at
2418 parsing them this should not create any compatibility issues.
2421 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
2422 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
2423 this HMAC (and other) operations are several times slower than OpenSSL
2427 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
2428 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2430 *) Use the correct content when signing type "other".
2433 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
2435 *) Fix various bugs revealed by running the NISCC test suite:
2437 Stop out of bounds reads in the ASN1 code when presented with
2438 invalid tags (CVE-2003-0543 and CVE-2003-0544).
2440 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
2442 If verify callback ignores invalid public key errors don't try to check
2443 certificate signature with the NULL public key.
2447 *) New -ignore_err option in ocsp application to stop the server
2448 exiting on the first error in a request.
2451 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
2452 if the server requested one: as stated in TLS 1.0 and SSL 3.0
2456 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
2457 extra data after the compression methods not only for TLS 1.0
2458 but also for SSL 3.0 (as required by the specification).
2459 [Bodo Moeller; problem pointed out by Matthias Loepfe]
2461 *) Change X509_certificate_type() to mark the key as exported/exportable
2462 when it's 512 *bits* long, not 512 bytes.
2465 *) Change AES_cbc_encrypt() so it outputs exact multiple of
2466 blocks during encryption.
2469 *) Various fixes to base64 BIO and non blocking I/O. On write
2470 flushes were not handled properly if the BIO retried. On read
2471 data was not being buffered properly and had various logic bugs.
2472 This also affects blocking I/O when the data being decoded is a
2476 *) Various S/MIME bugfixes and compatibility changes:
2477 output correct application/pkcs7 MIME type if
2478 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
2479 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
2480 of files as .eml work). Correctly handle very long lines in MIME
2484 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
2486 *) Countermeasure against the Klima-Pokorny-Rosa extension of
2487 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
2488 a protocol version number mismatch like a decryption error
2489 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
2492 *) Turn on RSA blinding by default in the default implementation
2493 to avoid a timing attack. Applications that don't want it can call
2494 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
2495 They would be ill-advised to do so in most cases.
2496 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
2498 *) Change RSA blinding code so that it works when the PRNG is not
2499 seeded (in this case, the secret RSA exponent is abused as
2500 an unpredictable seed -- if it is not unpredictable, there
2501 is no point in blinding anyway). Make RSA blinding thread-safe
2502 by remembering the creator's thread ID in rsa->blinding and
2503 having all other threads use local one-time blinding factors
2504 (this requires more computation than sharing rsa->blinding, but
2505 avoids excessive locking; and if an RSA object is not shared
2506 between threads, blinding will still be very fast).
2509 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
2510 ENGINE as defaults for all supported algorithms irrespective of
2511 the 'flags' parameter. 'flags' is now honoured, so applications
2512 should make sure they are passing it correctly.
2515 *) Target "mingw" now allows native Windows code to be generated in
2516 the Cygwin environment as well as with the MinGW compiler.
2519 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
2521 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
2522 via timing by performing a MAC computation even if incorrrect
2523 block cipher padding has been found. This is a countermeasure
2524 against active attacks where the attacker has to distinguish
2525 between bad padding and a MAC verification error. (CVE-2003-0078)
2527 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
2528 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
2529 Martin Vuagnoux (EPFL, Ilion)]
2531 *) Make the no-err option work as intended. The intention with no-err
2532 is not to have the whole error stack handling routines removed from
2533 libcrypto, it's only intended to remove all the function name and
2534 reason texts, thereby removing some of the footprint that may not
2535 be interesting if those errors aren't displayed anyway.
2537 NOTE: it's still possible for any application or module to have it's
2538 own set of error texts inserted. The routines are there, just not
2539 used by default when no-err is given.
2542 *) Add support for FreeBSD on IA64.
2543 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
2545 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
2546 Kerberos function mit_des_cbc_cksum(). Before this change,
2547 the value returned by DES_cbc_cksum() was like the one from
2548 mit_des_cbc_cksum(), except the bytes were swapped.
2549 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
2551 *) Allow an application to disable the automatic SSL chain building.
2552 Before this a rather primitive chain build was always performed in
2553 ssl3_output_cert_chain(): an application had no way to send the
2554 correct chain if the automatic operation produced an incorrect result.
2556 Now the chain builder is disabled if either:
2558 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
2560 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
2562 The reasoning behind this is that an application would not want the
2563 auto chain building to take place if extra chain certificates are
2564 present and it might also want a means of sending no additional
2565 certificates (for example the chain has two certificates and the
2569 *) Add the possibility to build without the ENGINE framework.
2570 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2572 *) Under Win32 gmtime() can return NULL: check return value in
2573 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
2576 *) DSA routines: under certain error conditions uninitialized BN objects
2577 could be freed. Solution: make sure initialization is performed early
2578 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
2579 Nils Larsch <nla@trustcenter.de> via PR#459)
2582 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
2583 checked on reconnect on the client side, therefore session resumption
2584 could still fail with a "ssl session id is different" error. This
2585 behaviour is masked when SSL_OP_ALL is used due to
2586 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
2587 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2588 followup to PR #377.
2591 *) IA-32 assembler support enhancements: unified ELF targets, support
2592 for SCO/Caldera platforms, fix for Cygwin shared build.
2595 *) Add support for FreeBSD on sparc64. As a consequence, support for
2596 FreeBSD on non-x86 processors is separate from x86 processors on
2597 the config script, much like the NetBSD support.
2598 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
2600 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
2602 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
2605 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
2606 code (06) was taken as the first octet of the session ID and the last
2607 octet was ignored consequently. As a result SSLv2 client side session
2608 caching could not have worked due to the session ID mismatch between
2610 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2614 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
2615 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
2619 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
2620 seems that in spite of existing for more than a year, many application
2621 author have done nothing to provide the necessary callbacks, which
2622 means that this particular engine will not work properly anywhere.
2623 This is a very unfortunate situation which forces us, in the name
2624 of usability, to give the hw_ncipher.c a static lock, which is part
2626 NOTE: This is for the 0.9.7 series ONLY. This hack will never
2627 appear in 0.9.8 or later. We EXPECT application authors to have
2628 dealt properly with this when 0.9.8 is released (unless we actually
2629 make such changes in the libcrypto locking code that changes will
2630 have to be made anyway).
2633 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
2634 octets have been read, EOF or an error occurs. Without this change
2635 some truncated ASN1 structures will not produce an error.
2638 *) Disable Heimdal support, since it hasn't been fully implemented.
2639 Still give the possibility to force the use of Heimdal, but with
2640 warnings and a request that patches get sent to openssl-dev.
2643 *) Add the VC-CE target, introduce the WINCE sysname, and add
2644 INSTALL.WCE and appropriate conditionals to make it build.
2645 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2647 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
2648 cygssl-x.y.z.dll, where x, y and z are the major, minor and
2649 edit numbers of the version.
2650 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
2652 *) Introduce safe string copy and catenation functions
2653 (BUF_strlcpy() and BUF_strlcat()).
2654 [Ben Laurie (CHATS) and Richard Levitte]
2656 *) Avoid using fixed-size buffers for one-line DNs.
2657 [Ben Laurie (CHATS)]
2659 *) Add BUF_MEM_grow_clean() to avoid information leakage when
2660 resizing buffers containing secrets, and use where appropriate.
2661 [Ben Laurie (CHATS)]
2663 *) Avoid using fixed size buffers for configuration file location.
2664 [Ben Laurie (CHATS)]
2666 *) Avoid filename truncation for various CA files.
2667 [Ben Laurie (CHATS)]
2669 *) Use sizeof in preference to magic numbers.
2670 [Ben Laurie (CHATS)]
2672 *) Avoid filename truncation in cert requests.
2673 [Ben Laurie (CHATS)]
2675 *) Add assertions to check for (supposedly impossible) buffer
2677 [Ben Laurie (CHATS)]
2679 *) Don't cache truncated DNS entries in the local cache (this could
2680 potentially lead to a spoofing attack).
2681 [Ben Laurie (CHATS)]
2683 *) Fix various buffers to be large enough for hex/decimal
2684 representations in a platform independent manner.
2685 [Ben Laurie (CHATS)]
2687 *) Add CRYPTO_realloc_clean() to avoid information leakage when
2688 resizing buffers containing secrets, and use where appropriate.
2689 [Ben Laurie (CHATS)]
2691 *) Add BIO_indent() to avoid much slightly worrying code to do
2693 [Ben Laurie (CHATS)]
2695 *) Convert sprintf()/BIO_puts() to BIO_printf().
2696 [Ben Laurie (CHATS)]
2698 *) buffer_gets() could terminate with the buffer only half
2700 [Ben Laurie (CHATS)]
2702 *) Add assertions to prevent user-supplied crypto functions from
2703 overflowing internal buffers by having large block sizes, etc.
2704 [Ben Laurie (CHATS)]
2706 *) New OPENSSL_assert() macro (similar to assert(), but enabled
2708 [Ben Laurie (CHATS)]
2710 *) Eliminate unused copy of key in RC4.
2711 [Ben Laurie (CHATS)]
2713 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
2714 [Ben Laurie (CHATS)]
2716 *) Fix off-by-one error in EGD path.
2717 [Ben Laurie (CHATS)]
2719 *) If RANDFILE path is too long, ignore instead of truncating.
2720 [Ben Laurie (CHATS)]
2722 *) Eliminate unused and incorrectly sized X.509 structure
2724 [Ben Laurie (CHATS)]
2726 *) Eliminate unused and dangerous function knumber().
2727 [Ben Laurie (CHATS)]
2729 *) Eliminate unused and dangerous structure, KSSL_ERR.
2730 [Ben Laurie (CHATS)]
2732 *) Protect against overlong session ID context length in an encoded
2733 session object. Since these are local, this does not appear to be
2735 [Ben Laurie (CHATS)]
2737 *) Change from security patch (see 0.9.6e below) that did not affect
2738 the 0.9.6 release series:
2740 Remote buffer overflow in SSL3 protocol - an attacker could
2741 supply an oversized master key in Kerberos-enabled versions.
2743 [Ben Laurie (CHATS)]
2745 *) Change the SSL kerb5 codes to match RFC 2712.
2748 *) Make -nameopt work fully for req and add -reqopt switch.
2749 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
2751 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
2752 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
2754 *) Make sure tests can be performed even if the corresponding algorithms
2755 have been removed entirely. This was also the last step to make
2756 OpenSSL compilable with DJGPP under all reasonable conditions.
2757 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
2759 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
2760 to allow version independent disabling of normally unselected ciphers,
2761 which may be activated as a side-effect of selecting a single cipher.
2763 (E.g., cipher list string "RSA" enables ciphersuites that are left
2764 out of "ALL" because they do not provide symmetric encryption.
2765 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
2766 [Lutz Jaenicke, Bodo Moeller]
2768 *) Add appropriate support for separate platform-dependent build
2769 directories. The recommended way to make a platform-dependent
2770 build directory is the following (tested on Linux), maybe with
2773 # Place yourself outside of the OpenSSL source tree. In
2774 # this example, the environment variable OPENSSL_SOURCE
2775 # is assumed to contain the absolute OpenSSL source directory.
2776 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
2777 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
2778 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
2779 mkdir -p `dirname $F`
2780 ln -s $OPENSSL_SOURCE/$F $F
2783 To be absolutely sure not to disturb the source tree, a "make clean"
2784 is a good thing. If it isn't successfull, don't worry about it,
2785 it probably means the source directory is very clean.
2788 *) Make sure any ENGINE control commands make local copies of string
2789 pointers passed to them whenever necessary. Otherwise it is possible
2790 the caller may have overwritten (or deallocated) the original string
2791 data when a later ENGINE operation tries to use the stored values.
2792 [Götz Babin-Ebell <babinebell@trustcenter.de>]
2794 *) Improve diagnostics in file reading and command-line digests.
2795 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
2797 *) Add AES modes CFB and OFB to the object database. Correct an
2798 error in AES-CFB decryption.
2801 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
2802 allows existing EVP_CIPHER_CTX structures to be reused after
2803 calling EVP_*Final(). This behaviour is used by encryption
2804 BIOs and some applications. This has the side effect that
2805 applications must explicitly clean up cipher contexts with
2806 EVP_CIPHER_CTX_cleanup() or they will leak memory.
2809 *) Check the values of dna and dnb in bn_mul_recursive before calling
2810 bn_mul_comba (a non zero value means the a or b arrays do not contain
2811 n2 elements) and fallback to bn_mul_normal if either is not zero.
2814 *) Fix escaping of non-ASCII characters when using the -subj option
2815 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
2818 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
2819 form for "surname", serialNumber has no short form.
2820 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
2821 therefore remove "mail" short name for "internet 7".
2822 The OID for unique identifiers in X509 certificates is
2823 x500UniqueIdentifier, not uniqueIdentifier.
2824 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
2827 *) Add an "init" command to the ENGINE config module and auto initialize
2828 ENGINEs. Without any "init" command the ENGINE will be initialized
2829 after all ctrl commands have been executed on it. If init=1 the
2830 ENGINE is initailized at that point (ctrls before that point are run
2831 on the uninitialized ENGINE and after on the initialized one). If
2832 init=0 then the ENGINE will not be iniatialized at all.
2835 *) Fix the 'app_verify_callback' interface so that the user-defined
2836 argument is actually passed to the callback: In the
2837 SSL_CTX_set_cert_verify_callback() prototype, the callback
2838 declaration has been changed from
2841 int (*cb)(X509_STORE_CTX *,void *);
2842 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
2843 i=s->ctx->app_verify_callback(&ctx)
2844 has been changed into
2845 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
2847 To update applications using SSL_CTX_set_cert_verify_callback(),
2848 a dummy argument can be added to their callback functions.
2849 [D. K. Smetters <smetters@parc.xerox.com>]
2851 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
2852 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
2854 *) Add and OPENSSL_LOAD_CONF define which will cause
2855 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
2856 This allows older applications to transparently support certain
2857 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
2858 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
2859 load the config file and OPENSSL_add_all_algorithms_conf() which will
2860 always load it have also been added.
2863 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
2864 Adjust NIDs and EVP layer.
2865 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2867 *) Config modules support in openssl utility.
2869 Most commands now load modules from the config file,
2870 though in a few (such as version) this isn't done
2871 because it couldn't be used for anything.
2873 In the case of ca and req the config file used is
2874 the same as the utility itself: that is the -config
2875 command line option can be used to specify an
2879 *) Move default behaviour from OPENSSL_config(). If appname is NULL
2880 use "openssl_conf" if filename is NULL use default openssl config file.
2883 *) Add an argument to OPENSSL_config() to allow the use of an alternative
2884 config section name. Add a new flag to tolerate a missing config file
2885 and move code to CONF_modules_load_file().
2888 *) Support for crypto accelerator cards from Accelerated Encryption
2889 Processing, www.aep.ie. (Use engine 'aep')
2890 The support was copied from 0.9.6c [engine] and adapted/corrected
2891 to work with the new engine framework.
2892 [AEP Inc. and Richard Levitte]
2894 *) Support for SureWare crypto accelerator cards from Baltimore
2895 Technologies. (Use engine 'sureware')
2896 The support was copied from 0.9.6c [engine] and adapted
2897 to work with the new engine framework.
2900 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
2901 make the newer ENGINE framework commands for the CHIL engine work.
2902 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
2904 *) Make it possible to produce shared libraries on ReliantUNIX.
2905 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
2907 *) Add the configuration target debug-linux-ppro.
2908 Make 'openssl rsa' use the general key loading routines
2909 implemented in apps.c, and make those routines able to
2910 handle the key format FORMAT_NETSCAPE and the variant
2912 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2914 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
2915 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2917 *) Add -keyform to rsautl, and document -engine.
2918 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
2920 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
2921 BIO_R_NO_SUCH_FILE error code rather than the generic
2922 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
2925 *) Add new functions
2927 ERR_peek_last_error_line
2928 ERR_peek_last_error_line_data.
2929 These are similar to
2932 ERR_peek_error_line_data,
2933 but report on the latest error recorded rather than the first one
2934 still in the error queue.
2935 [Ben Laurie, Bodo Moeller]
2937 *) default_algorithms option in ENGINE config module. This allows things
2939 default_algorithms = ALL
2940 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
2943 *) Prelminary ENGINE config module.
2946 *) New experimental application configuration code.
2949 *) Change the AES code to follow the same name structure as all other
2950 symmetric ciphers, and behave the same way. Move everything to
2951 the directory crypto/aes, thereby obsoleting crypto/rijndael.
2952 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2954 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
2955 [Ben Laurie and Theo de Raadt]
2957 *) Add option to output public keys in req command.
2958 [Massimiliano Pala madwolf@openca.org]
2960 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
2961 (up to about 10% better than before for P-192 and P-224).
2964 *) New functions/macros
2966 SSL_CTX_set_msg_callback(ctx, cb)
2967 SSL_CTX_set_msg_callback_arg(ctx, arg)
2968 SSL_set_msg_callback(ssl, cb)
2969 SSL_set_msg_callback_arg(ssl, arg)
2971 to request calling a callback function
2973 void cb(int write_p, int version, int content_type,
2974 const void *buf, size_t len, SSL *ssl, void *arg)
2976 whenever a protocol message has been completely received
2977 (write_p == 0) or sent (write_p == 1). Here 'version' is the
2978 protocol version according to which the SSL library interprets
2979 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
2980 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
2981 the content type as defined in the SSL 3.0/TLS 1.0 protocol
2982 specification (change_cipher_spec(20), alert(21), handshake(22)).
2983 'buf' and 'len' point to the actual message, 'ssl' to the
2984 SSL object, and 'arg' is the application-defined value set by
2985 SSL[_CTX]_set_msg_callback_arg().
2987 'openssl s_client' and 'openssl s_server' have new '-msg' options
2988 to enable a callback that displays all protocol messages.
2991 *) Change the shared library support so shared libraries are built as
2992 soon as the corresponding static library is finished, and thereby get
2993 openssl and the test programs linked against the shared library.
2994 This still only happens when the keyword "shard" has been given to
2995 the configuration scripts.
2997 NOTE: shared library support is still an experimental thing, and
2998 backward binary compatibility is still not guaranteed.
2999 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
3001 *) Add support for Subject Information Access extension.
3002 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3004 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
3005 additional bytes when new memory had to be allocated, not just
3006 when reusing an existing buffer.
3009 *) New command line and configuration option 'utf8' for the req command.
3010 This allows field values to be specified as UTF8 strings.
3013 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
3014 runs for the former and machine-readable output for the latter.
3017 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
3018 of the e-mail address in the DN (i.e., it will go into a certificate
3019 extension only). The new configuration file option 'email_in_dn = no'
3020 has the same effect.
3021 [Massimiliano Pala madwolf@openca.org]
3023 *) Change all functions with names starting with des_ to be starting
3024 with DES_ instead. Add wrappers that are compatible with libdes,
3025 but are named _ossl_old_des_*. Finally, add macros that map the
3026 des_* symbols to the corresponding _ossl_old_des_* if libdes
3027 compatibility is desired. If OpenSSL 0.9.6c compatibility is
3028 desired, the des_* symbols will be mapped to DES_*, with one
3031 Since we provide two compatibility mappings, the user needs to
3032 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
3033 compatibility is desired. The default (i.e., when that macro
3034 isn't defined) is OpenSSL 0.9.6c compatibility.
3036 There are also macros that enable and disable the support of old
3037 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
3038 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
3039 are defined, the default will apply: to support the old des routines.
3041 In either case, one must include openssl/des.h to get the correct
3042 definitions. Do not try to just include openssl/des_old.h, that
3045 NOTE: This is a major break of an old API into a new one. Software
3046 authors are encouraged to switch to the DES_ style functions. Some
3047 time in the future, des_old.h and the libdes compatibility functions
3048 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
3049 default), and then completely removed.
3052 *) Test for certificates which contain unsupported critical extensions.
3053 If such a certificate is found during a verify operation it is
3054 rejected by default: this behaviour can be overridden by either
3055 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
3056 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
3057 X509_supported_extension() has also been added which returns 1 if a
3058 particular extension is supported.
3061 *) Modify the behaviour of EVP cipher functions in similar way to digests
3062 to retain compatibility with existing code.
3065 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
3066 compatibility with existing code. In particular the 'ctx' parameter does
3067 not have to be to be initialized before the call to EVP_DigestInit() and
3068 it is tidied up after a call to EVP_DigestFinal(). New function
3069 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
3070 EVP_MD_CTX_copy() changed to not require the destination to be
3071 initialized valid and new function EVP_MD_CTX_copy_ex() added which
3072 requires the destination to be valid.
3074 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
3075 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
3078 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
3079 so that complete 'Handshake' protocol structures are kept in memory
3080 instead of overwriting 'msg_type' and 'length' with 'body' data.
3083 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
3084 [Massimo Santin via Richard Levitte]
3086 *) Major restructuring to the underlying ENGINE code. This includes
3087 reduction of linker bloat, separation of pure "ENGINE" manipulation
3088 (initialisation, etc) from functionality dealing with implementations
3089 of specific crypto iterfaces. This change also introduces integrated
3090 support for symmetric ciphers and digest implementations - so ENGINEs
3091 can now accelerate these by providing EVP_CIPHER and EVP_MD
3092 implementations of their own. This is detailed in crypto/engine/README
3093 as it couldn't be adequately described here. However, there are a few
3094 API changes worth noting - some RSA, DSA, DH, and RAND functions that
3095 were changed in the original introduction of ENGINE code have now
3096 reverted back - the hooking from this code to ENGINE is now a good
3097 deal more passive and at run-time, operations deal directly with
3098 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
3099 dereferencing through an ENGINE pointer any more. Also, the ENGINE
3100 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
3101 they were not being used by the framework as there is no concept of a
3102 BIGNUM_METHOD and they could not be generalised to the new
3103 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
3104 ENGINE_cpy() has been removed as it cannot be consistently defined in
3108 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
3111 *) Change mkdef.pl to sort symbols that get the same entry number,
3112 and make sure the automatically generated functions ERR_load_*
3113 become part of libeay.num as well.
3116 *) New function SSL_renegotiate_pending(). This returns true once
3117 renegotiation has been requested (either SSL_renegotiate() call
3118 or HelloRequest/ClientHello receveived from the peer) and becomes
3119 false once a handshake has been completed.
3120 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
3121 sends a HelloRequest, but does not ensure that a handshake takes
3122 place. SSL_renegotiate_pending() is useful for checking if the
3123 client has followed the request.)
3126 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
3127 By default, clients may request session resumption even during
3128 renegotiation (if session ID contexts permit); with this option,
3129 session resumption is possible only in the first handshake.
3131 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
3132 more bits available for options that should not be part of
3133 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
3136 *) Add some demos for certificate and certificate request creation.
3139 *) Make maximum certificate chain size accepted from the peer application
3140 settable (SSL*_get/set_max_cert_list()), as proposed by
3141 "Douglas E. Engert" <deengert@anl.gov>.
3144 *) Add support for shared libraries for Unixware-7
3145 (Boyd Lynn Gerber <gerberb@zenez.com>).
3148 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
3149 be done prior to destruction. Use this to unload error strings from
3150 ENGINEs that load their own error strings. NB: This adds two new API
3151 functions to "get" and "set" this destroy handler in an ENGINE.
3154 *) Alter all existing ENGINE implementations (except "openssl" and
3155 "openbsd") to dynamically instantiate their own error strings. This
3156 makes them more flexible to be built both as statically-linked ENGINEs
3157 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
3158 Also, add stub code to each that makes building them as self-contained
3159 shared-libraries easier (see README.ENGINE).
3162 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
3163 implementations into applications that are completely implemented in
3164 self-contained shared-libraries. The "dynamic" ENGINE exposes control
3165 commands that can be used to configure what shared-library to load and
3166 to control aspects of the way it is handled. Also, made an update to
3167 the README.ENGINE file that brings its information up-to-date and
3168 provides some information and instructions on the "dynamic" ENGINE
3169 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
3172 *) Make it possible to unload ranges of ERR strings with a new
3173 "ERR_unload_strings" function.
3176 *) Add a copy() function to EVP_MD.
3179 *) Make EVP_MD routines take a context pointer instead of just the
3180 md_data void pointer.
3183 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
3184 that the digest can only process a single chunk of data
3185 (typically because it is provided by a piece of
3186 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
3187 is only going to provide a single chunk of data, and hence the
3188 framework needn't accumulate the data for oneshot drivers.
3191 *) As with "ERR", make it possible to replace the underlying "ex_data"
3192 functions. This change also alters the storage and management of global
3193 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
3194 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
3195 index counters. The API functions that use this state have been changed
3196 to take a "class_index" rather than pointers to the class's local STACK
3197 and counter, and there is now an API function to dynamically create new
3198 classes. This centralisation allows us to (a) plug a lot of the
3199 thread-safety problems that existed, and (b) makes it possible to clean
3200 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
3201 such data would previously have always leaked in application code and
3202 workarounds were in place to make the memory debugging turn a blind eye
3203 to it. Application code that doesn't use this new function will still
3204 leak as before, but their memory debugging output will announce it now
3205 rather than letting it slide.
3207 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
3208 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
3209 has a return value to indicate success or failure.
3212 *) Make it possible to replace the underlying "ERR" functions such that the
3213 global state (2 LHASH tables and 2 locks) is only used by the "default"
3214 implementation. This change also adds two functions to "get" and "set"
3215 the implementation prior to it being automatically set the first time
3216 any other ERR function takes place. Ie. an application can call "get",
3217 pass the return value to a module it has just loaded, and that module
3218 can call its own "set" function using that value. This means the
3219 module's "ERR" operations will use (and modify) the error state in the
3220 application and not in its own statically linked copy of OpenSSL code.
3223 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
3224 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
3225 the operation, and provides a more encapsulated way for external code
3226 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
3227 to use these functions rather than manually incrementing the counts.
3229 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
3232 *) Add EVP test program.
3235 *) Add symmetric cipher support to ENGINE. Expect the API to change!
3238 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
3239 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
3240 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
3241 These allow a CRL to be built without having to access X509_CRL fields
3242 directly. Modify 'ca' application to use new functions.
3245 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
3246 bug workarounds. Rollback attack detection is a security feature.
3247 The problem will only arise on OpenSSL servers when TLSv1 is not
3248 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
3249 Software authors not wanting to support TLSv1 will have special reasons
3250 for their choice and can explicitly enable this option.
3251 [Bodo Moeller, Lutz Jaenicke]
3253 *) Rationalise EVP so it can be extended: don't include a union of
3254 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
3255 (similar to those existing for EVP_CIPHER_CTX).
3260 EVP_MD_CTX_init(&md); /* new function call */
3261 EVP_DigestInit(&md, EVP_sha1());
3262 EVP_DigestUpdate(&md, in, len);
3263 EVP_DigestFinal(&md, out, NULL);
3264 EVP_MD_CTX_cleanup(&md); /* new function call */
3268 *) Make DES key schedule conform to the usual scheme, as well as
3269 correcting its structure. This means that calls to DES functions
3270 now have to pass a pointer to a des_key_schedule instead of a
3271 plain des_key_schedule (which was actually always a pointer
3274 des_key_schedule ks;
3276 des_set_key_checked(..., &ks);
3277 des_ncbc_encrypt(..., &ks, ...);
3279 (Note that a later change renames 'des_...' into 'DES_...'.)
3282 *) Initial reduction of linker bloat: the use of some functions, such as
3283 PEM causes large amounts of unused functions to be linked in due to
3284 poor organisation. For example pem_all.c contains every PEM function
3285 which has a knock on effect of linking in large amounts of (unused)
3286 ASN1 code. Grouping together similar functions and splitting unrelated
3287 functions prevents this.
3290 *) Cleanup of EVP macros.
3293 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
3294 correct _ecb suffix.
3297 *) Add initial OCSP responder support to ocsp application. The
3298 revocation information is handled using the text based index
3299 use by the ca application. The responder can either handle
3300 requests generated internally, supplied in files (for example
3301 via a CGI script) or using an internal minimal server.
3304 *) Add configuration choices to get zlib compression for TLS.
3307 *) Changes to Kerberos SSL for RFC 2712 compliance:
3308 1. Implemented real KerberosWrapper, instead of just using
3309 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
3310 2. Implemented optional authenticator field of KerberosWrapper.
3312 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
3313 and authenticator structs; see crypto/krb5/.
3315 Generalized Kerberos calls to support multiple Kerberos libraries.
3316 [Vern Staats <staatsvr@asc.hpc.mil>,
3317 Jeffrey Altman <jaltman@columbia.edu>
3318 via Richard Levitte]
3320 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
3321 already does with RSA. testdsa.h now has 'priv_key/pub_key'
3322 values for each of the key sizes rather than having just
3323 parameters (and 'speed' generating keys each time).
3326 *) Speed up EVP routines.
3329 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
3330 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
3331 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
3332 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
3334 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
3335 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
3336 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
3339 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
3341 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
3344 *) Added the OS2-EMX target.
3345 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
3347 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
3348 to support NCONF routines in extension code. New function CONF_set_nconf()
3349 to allow functions which take an NCONF to also handle the old LHASH
3350 structure: this means that the old CONF compatible routines can be
3351 retained (in particular wrt extensions) without having to duplicate the
3352 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
3355 *) Enhance the general user interface with mechanisms for inner control
3356 and with possibilities to have yes/no kind of prompts.
3359 *) Change all calls to low level digest routines in the library and
3360 applications to use EVP. Add missing calls to HMAC_cleanup() and
3361 don't assume HMAC_CTX can be copied using memcpy().
3362 [Verdon Walker <VWalker@novell.com>, Steve Henson]
3364 *) Add the possibility to control engines through control names but with
3365 arbitrary arguments instead of just a string.
3366 Change the key loaders to take a UI_METHOD instead of a callback
3367 function pointer. NOTE: this breaks binary compatibility with earlier
3368 versions of OpenSSL [engine].
3369 Adapt the nCipher code for these new conditions and add a card insertion
3373 *) Enhance the general user interface with mechanisms to better support
3374 dialog box interfaces, application-defined prompts, the possibility
3375 to use defaults (for example default passwords from somewhere else)
3376 and interrupts/cancellations.
3379 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
3380 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
3383 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
3384 tidy up some unnecessarily weird code in 'sk_new()').
3385 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
3387 *) Change the key loading routines for ENGINEs to use the same kind
3388 callback (pem_password_cb) as all other routines that need this
3392 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
3393 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
3394 than this minimum value is recommended.
3397 *) New random seeder for OpenVMS, using the system process statistics
3398 that are easily reachable.
3401 *) Windows apparently can't transparently handle global
3402 variables defined in DLLs. Initialisations such as:
3404 const ASN1_ITEM *it = &ASN1_INTEGER_it;
3406 wont compile. This is used by the any applications that need to
3407 declare their own ASN1 modules. This was fixed by adding the option
3408 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
3409 needed for static libraries under Win32.
3412 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
3413 setting of purpose and trust fields. New X509_STORE trust and
3414 purpose functions and tidy up setting in other SSL functions.
3417 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
3418 structure. These are inherited by X509_STORE_CTX when it is
3419 initialised. This allows various defaults to be set in the
3420 X509_STORE structure (such as flags for CRL checking and custom
3421 purpose or trust settings) for functions which only use X509_STORE_CTX
3422 internally such as S/MIME.
3424 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
3425 trust settings if they are not set in X509_STORE. This allows X509_STORE
3426 purposes and trust (in S/MIME for example) to override any set by default.
3428 Add command line options for CRL checking to smime, s_client and s_server
3432 *) Initial CRL based revocation checking. If the CRL checking flag(s)
3433 are set then the CRL is looked up in the X509_STORE structure and
3434 its validity and signature checked, then if the certificate is found
3435 in the CRL the verify fails with a revoked error.
3437 Various new CRL related callbacks added to X509_STORE_CTX structure.
3439 Command line options added to 'verify' application to support this.
3441 This needs some additional work, such as being able to handle multiple
3442 CRLs with different times, extension based lookup (rather than just
3443 by subject name) and ultimately more complete V2 CRL extension
3447 *) Add a general user interface API (crypto/ui/). This is designed
3448 to replace things like des_read_password and friends (backward
3449 compatibility functions using this new API are provided).
3450 The purpose is to remove prompting functions from the DES code
3451 section as well as provide for prompting through dialog boxes in
3452 a window system and the like.
3455 *) Add "ex_data" support to ENGINE so implementations can add state at a
3456 per-structure level rather than having to store it globally.
3459 *) Make it possible for ENGINE structures to be copied when retrieved by
3460 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
3461 This causes the "original" ENGINE structure to act like a template,
3462 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
3463 operational state can be localised to each ENGINE structure, despite the
3464 fact they all share the same "methods". New ENGINE structures returned in
3465 this case have no functional references and the return value is the single
3466 structural reference. This matches the single structural reference returned
3467 by ENGINE_by_id() normally, when it is incremented on the pre-existing
3471 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
3472 needs to match any other type at all we need to manually clear the
3476 *) Changes to the "openssl engine" utility to include;
3477 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
3478 about an ENGINE's available control commands.
3479 - executing control commands from command line arguments using the
3480 '-pre' and '-post' switches. '-post' is only used if '-t' is
3481 specified and the ENGINE is successfully initialised. The syntax for
3482 the individual commands are colon-separated, for example;
3483 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
3486 *) New dynamic control command support for ENGINEs. ENGINEs can now
3487 declare their own commands (numbers), names (strings), descriptions,
3488 and input types for run-time discovery by calling applications. A
3489 subset of these commands are implicitly classed as "executable"
3490 depending on their input type, and only these can be invoked through
3491 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
3492 can be based on user input, config files, etc). The distinction is
3493 that "executable" commands cannot return anything other than a boolean
3494 result and can only support numeric or string input, whereas some
3495 discoverable commands may only be for direct use through
3496 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
3497 pointers, or other custom uses. The "executable" commands are to
3498 support parameterisations of ENGINE behaviour that can be
3499 unambiguously defined by ENGINEs and used consistently across any
3500 OpenSSL-based application. Commands have been added to all the
3501 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
3502 control over shared-library paths without source code alterations.
3505 *) Changed all ENGINE implementations to dynamically allocate their
3506 ENGINEs rather than declaring them statically. Apart from this being
3507 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
3508 this also allows the implementations to compile without using the
3509 internal engine_int.h header.
3512 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
3513 'const' value. Any code that should be able to modify a RAND_METHOD
3514 should already have non-const pointers to it (ie. they should only
3515 modify their own ones).
3518 *) Made a variety of little tweaks to the ENGINE code.
3519 - "atalla" and "ubsec" string definitions were moved from header files
3520 to C code. "nuron" string definitions were placed in variables
3521 rather than hard-coded - allowing parameterisation of these values
3522 later on via ctrl() commands.
3523 - Removed unused "#if 0"'d code.
3524 - Fixed engine list iteration code so it uses ENGINE_free() to release
3525 structural references.
3526 - Constified the RAND_METHOD element of ENGINE structures.
3527 - Constified various get/set functions as appropriate and added
3528 missing functions (including a catch-all ENGINE_cpy that duplicates
3529 all ENGINE values onto a new ENGINE except reference counts/state).
3530 - Removed NULL parameter checks in get/set functions. Setting a method
3531 or function to NULL is a way of cancelling out a previously set
3532 value. Passing a NULL ENGINE parameter is just plain stupid anyway
3533 and doesn't justify the extra error symbols and code.
3534 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
3535 flags from engine_int.h to engine.h.
3536 - Changed prototypes for ENGINE handler functions (init(), finish(),
3537 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
3540 *) Implement binary inversion algorithm for BN_mod_inverse in addition
3541 to the algorithm using long division. The binary algorithm can be
3542 used only if the modulus is odd. On 32-bit systems, it is faster
3543 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
3544 roughly 5-15% for 256-bit moduli), so we use it only for moduli
3545 up to 450 bits. In 64-bit environments, the binary algorithm
3546 appears to be advantageous for much longer moduli; here we use it
3547 for moduli up to 2048 bits.
3550 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
3551 could not support the combine flag in choice fields.
3554 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
3555 extensions from a certificate request to the certificate.
3558 *) Allow multiple 'certopt' and 'nameopt' options to be separated
3559 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
3560 file: this allows the display of the certificate about to be
3561 signed to be customised, to allow certain fields to be included
3562 or excluded and extension details. The old system didn't display
3563 multicharacter strings properly, omitted fields not in the policy
3564 and couldn't display additional details such as extensions.
3567 *) Function EC_POINTs_mul for multiple scalar multiplication
3568 of an arbitrary number of elliptic curve points
3569 \sum scalars[i]*points[i],
3570 optionally including the generator defined for the EC_GROUP:
3571 scalar*generator + \sum scalars[i]*points[i].
3573 EC_POINT_mul is a simple wrapper function for the typical case
3574 that the point list has just one item (besides the optional
3578 *) First EC_METHODs for curves over GF(p):
3580 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
3581 operations and provides various method functions that can also
3582 operate with faster implementations of modular arithmetic.
3584 EC_GFp_mont_method() reuses most functions that are part of
3585 EC_GFp_simple_method, but uses Montgomery arithmetic.
3587 [Bodo Moeller; point addition and point doubling
3588 implementation directly derived from source code provided by
3589 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
3591 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
3592 crypto/ec/ec_lib.c):
3594 Curves are EC_GROUP objects (with an optional group generator)
3595 based on EC_METHODs that are built into the library.
3597 Points are EC_POINT objects based on EC_GROUP objects.
3599 Most of the framework would be able to handle curves over arbitrary
3600 finite fields, but as there are no obvious types for fields other
3601 than GF(p), some functions are limited to that for now.
3604 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
3605 that the file contains a complete HTTP response.
3608 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
3609 change the def and num file printf format specifier from "%-40sXXX"
3610 to "%-39s XXX". The latter will always guarantee a space after the
3611 field while the former will cause them to run together if the field
3612 is 40 of more characters long.
3615 *) Constify the cipher and digest 'method' functions and structures
3616 and modify related functions to take constant EVP_MD and EVP_CIPHER
3620 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
3621 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
3624 *) Modify EVP_Digest*() routines so they now return values. Although the
3625 internal software routines can never fail additional hardware versions
3629 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
3631 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
3632 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
3635 ERR_R_NESTED_ASN1_ERROR
3637 ERR_R_MISSING_ASN1_EOS
3638 were 4 .. 9, conflicting with
3639 ERR_LIB_RSA (= ERR_R_RSA_LIB)
3641 ERR_LIB_PEM (= ERR_R_PEM_LIB).
3642 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
3644 Add new error code 'ERR_R_INTERNAL_ERROR'.
3647 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
3651 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
3652 sets the subject name for a new request or supersedes the
3653 subject name in a given request. Formats that can be parsed are
3654 'CN=Some Name, OU=myOU, C=IT'
3656 'CN=Some Name/OU=myOU/C=IT'.
3658 Add options '-batch' and '-verbose' to 'openssl req'.
3659 [Massimiliano Pala <madwolf@hackmasters.net>]
3661 *) Introduce the possibility to access global variables through
3662 functions on platform were that's the best way to handle exporting
3663 global variables in shared libraries. To enable this functionality,
3664 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
3665 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
3666 is normally done by Configure or something similar).
3668 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
3669 in the source file (foo.c) like this:
3671 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
3672 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
3674 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
3675 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
3677 OPENSSL_DECLARE_GLOBAL(int,foo);
3678 #define foo OPENSSL_GLOBAL_REF(foo)
3679 OPENSSL_DECLARE_GLOBAL(double,bar);
3680 #define bar OPENSSL_GLOBAL_REF(bar)
3682 The #defines are very important, and therefore so is including the
3683 header file everywhere where the defined globals are used.
3685 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
3686 of ASN.1 items, but that structure is a bit different.
3688 The largest change is in util/mkdef.pl which has been enhanced with
3689 better and easier to understand logic to choose which symbols should
3690 go into the Windows .def files as well as a number of fixes and code
3691 cleanup (among others, algorithm keywords are now sorted
3692 lexicographically to avoid constant rewrites).
3695 *) In BN_div() keep a copy of the sign of 'num' before writing the
3696 result to 'rm' because if rm==num the value will be overwritten
3697 and produce the wrong result if 'num' is negative: this caused
3698 problems with BN_mod() and BN_nnmod().
3701 *) Function OCSP_request_verify(). This checks the signature on an
3702 OCSP request and verifies the signer certificate. The signer
3703 certificate is just checked for a generic purpose and OCSP request
3707 *) Add OCSP_check_validity() function to check the validity of OCSP
3708 responses. OCSP responses are prepared in real time and may only
3709 be a few seconds old. Simply checking that the current time lies
3710 between thisUpdate and nextUpdate max reject otherwise valid responses
3711 caused by either OCSP responder or client clock inaccuracy. Instead
3712 we allow thisUpdate and nextUpdate to fall within a certain period of
3713 the current time. The age of the response can also optionally be
3714 checked. Two new options -validity_period and -status_age added to
3718 *) If signature or public key algorithm is unrecognized print out its
3719 OID rather that just UNKNOWN.
3722 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
3723 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
3724 ID to be generated from the issuer certificate alone which can then be
3725 passed to OCSP_id_issuer_cmp().
3728 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
3729 ASN1 modules to export functions returning ASN1_ITEM pointers
3730 instead of the ASN1_ITEM structures themselves. This adds several
3731 new macros which allow the underlying ASN1 function/structure to
3732 be accessed transparently. As a result code should not use ASN1_ITEM
3733 references directly (such as &X509_it) but instead use the relevant
3734 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
3735 use of the new ASN1 code on platforms where exporting structures
3736 is problematical (for example in shared libraries) but exporting
3737 functions returning pointers to structures is not.
3740 *) Add support for overriding the generation of SSL/TLS session IDs.
3741 These callbacks can be registered either in an SSL_CTX or per SSL.
3742 The purpose of this is to allow applications to control, if they wish,
3743 the arbitrary values chosen for use as session IDs, particularly as it
3744 can be useful for session caching in multiple-server environments. A
3745 command-line switch for testing this (and any client code that wishes
3746 to use such a feature) has been added to "s_server".
3747 [Geoff Thorpe, Lutz Jaenicke]
3749 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
3750 of the form '#if defined(...) || defined(...) || ...' and
3751 '#if !defined(...) && !defined(...) && ...'. This also avoids
3752 the growing number of special cases it was previously handling.
3755 *) Make all configuration macros available for application by making
3756 sure they are available in opensslconf.h, by giving them names starting
3757 with "OPENSSL_" to avoid conflicts with other packages and by making
3758 sure e_os2.h will cover all platform-specific cases together with
3760 Additionally, it is now possible to define configuration/platform-
3761 specific names (called "system identities"). In the C code, these
3762 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
3763 macro with the name beginning with "OPENSSL_SYS_", which is determined
3764 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
3768 *) New option -set_serial to 'req' and 'x509' this allows the serial
3769 number to use to be specified on the command line. Previously self
3770 signed certificates were hard coded with serial number 0 and the
3771 CA options of 'x509' had to use a serial number in a file which was
3775 *) New options to 'ca' utility to support V2 CRL entry extensions.
3776 Currently CRL reason, invalidity date and hold instruction are
3777 supported. Add new CRL extensions to V3 code and some new objects.
3780 *) New function EVP_CIPHER_CTX_set_padding() this is used to
3781 disable standard block padding (aka PKCS#5 padding) in the EVP
3782 API, which was previously mandatory. This means that the data is
3783 not padded in any way and so the total length much be a multiple
3784 of the block size, otherwise an error occurs.
3787 *) Initial (incomplete) OCSP SSL support.
3790 *) New function OCSP_parse_url(). This splits up a URL into its host,
3791 port and path components: primarily to parse OCSP URLs. New -url
3792 option to ocsp utility.
3795 *) New nonce behavior. The return value of OCSP_check_nonce() now
3796 reflects the various checks performed. Applications can decide
3797 whether to tolerate certain situations such as an absent nonce
3798 in a response when one was present in a request: the ocsp application
3799 just prints out a warning. New function OCSP_add1_basic_nonce()
3800 this is to allow responders to include a nonce in a response even if
3801 the request is nonce-less.
3804 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
3805 skipped when using openssl x509 multiple times on a single input file,
3806 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
3809 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
3810 set string type: to handle setting ASN1_TIME structures. Fix ca
3811 utility to correctly initialize revocation date of CRLs.
3814 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
3815 the clients preferred ciphersuites and rather use its own preferences.
3816 Should help to work around M$ SGC (Server Gated Cryptography) bug in
3817 Internet Explorer by ensuring unchanged hash method during stepup.
3818 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
3821 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
3822 to aes and add a new 'exist' option to print out symbols that don't
3826 *) Additional options to ocsp utility to allow flags to be set and
3827 additional certificates supplied.
3830 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
3831 OCSP client a number of certificate to only verify the response
3835 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
3836 handle the new API. Currently only ECB, CBC modes supported. Add new
3839 Add TLS AES ciphersuites as described in RFC3268, "Advanced
3840 Encryption Standard (AES) Ciphersuites for Transport Layer
3841 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
3842 not enabled by default and were not part of the "ALL" ciphersuite
3843 alias because they were not yet official; they could be
3844 explicitly requested by specifying the "AESdraft" ciphersuite
3845 group alias. In the final release of OpenSSL 0.9.7, the group
3846 alias is called "AES" and is part of "ALL".)
3847 [Ben Laurie, Steve Henson, Bodo Moeller]
3849 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
3850 request to response.
3853 *) Functions for OCSP responders. OCSP_request_onereq_count(),
3854 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
3855 extract information from a certificate request. OCSP_response_create()
3856 creates a response and optionally adds a basic response structure.
3857 OCSP_basic_add1_status() adds a complete single response to a basic
3858 response and returns the OCSP_SINGLERESP structure just added (to allow
3859 extensions to be included for example). OCSP_basic_add1_cert() adds a
3860 certificate to a basic response and OCSP_basic_sign() signs a basic
3861 response with various flags. New helper functions ASN1_TIME_check()
3862 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
3863 (converts ASN1_TIME to GeneralizedTime).
3866 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
3867 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
3868 structure from a certificate. X509_pubkey_digest() digests the public_key
3869 contents: this is used in various key identifiers.
3872 *) Make sk_sort() tolerate a NULL argument.
3873 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
3875 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
3876 passed by the function are trusted implicitly. If any of them signed the
3877 response then it is assumed to be valid and is not verified.
3880 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
3881 to data. This was previously part of the PKCS7 ASN1 code. This
3882 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
3883 [Steve Henson, reported by Kenneth R. Robinette
3884 <support@securenetterm.com>]
3886 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
3887 routines: without these tracing memory leaks is very painful.
3888 Fix leaks in PKCS12 and PKCS7 routines.
3891 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
3892 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
3893 effectively meant GeneralizedTime would never be used. Now it
3894 is initialised to -1 but X509_time_adj() now has to check the value
3895 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
3896 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
3897 [Steve Henson, reported by Kenneth R. Robinette
3898 <support@securenetterm.com>]
3900 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
3901 result in a zero length in the ASN1_INTEGER structure which was
3902 not consistent with the structure when d2i_ASN1_INTEGER() was used
3903 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
3904 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
3905 where it did not print out a minus for negative ASN1_INTEGER.
3908 *) Add summary printout to ocsp utility. The various functions which
3909 convert status values to strings have been renamed to:
3910 OCSP_response_status_str(), OCSP_cert_status_str() and
3911 OCSP_crl_reason_str() and are no longer static. New options
3912 to verify nonce values and to disable verification. OCSP response
3913 printout format cleaned up.
3916 *) Add additional OCSP certificate checks. These are those specified
3917 in RFC2560. This consists of two separate checks: the CA of the
3918 certificate being checked must either be the OCSP signer certificate
3919 or the issuer of the OCSP signer certificate. In the latter case the
3920 OCSP signer certificate must contain the OCSP signing extended key
3921 usage. This check is performed by attempting to match the OCSP
3922 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
3923 in the OCSP_CERTID structures of the response.
3926 *) Initial OCSP certificate verification added to OCSP_basic_verify()
3927 and related routines. This uses the standard OpenSSL certificate
3928 verify routines to perform initial checks (just CA validity) and
3929 to obtain the certificate chain. Then additional checks will be
3930 performed on the chain. Currently the root CA is checked to see
3931 if it is explicitly trusted for OCSP signing. This is used to set
3932 a root CA as a global signing root: that is any certificate that
3933 chains to that CA is an acceptable OCSP signing certificate.
3936 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
3937 extensions from a separate configuration file.
3938 As when reading extensions from the main configuration file,
3939 the '-extensions ...' option may be used for specifying the
3941 [Massimiliano Pala <madwolf@comune.modena.it>]
3943 *) New OCSP utility. Allows OCSP requests to be generated or
3944 read. The request can be sent to a responder and the output
3945 parsed, outputed or printed in text form. Not complete yet:
3946 still needs to check the OCSP response validity.
3949 *) New subcommands for 'openssl ca':
3950 'openssl ca -status <serial>' prints the status of the cert with
3951 the given serial number (according to the index file).
3952 'openssl ca -updatedb' updates the expiry status of certificates
3954 [Massimiliano Pala <madwolf@comune.modena.it>]
3956 *) New '-newreq-nodes' command option to CA.pl. This is like
3957 '-newreq', but calls 'openssl req' with the '-nodes' option
3958 so that the resulting key is not encrypted.
3959 [Damien Miller <djm@mindrot.org>]
3961 *) New configuration for the GNU Hurd.
3962 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
3964 *) Initial code to implement OCSP basic response verify. This
3965 is currently incomplete. Currently just finds the signer's
3966 certificate and verifies the signature on the response.
3969 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
3970 value of OPENSSLDIR. This is available via the new '-d' option
3971 to 'openssl version', and is also included in 'openssl version -a'.
3974 *) Allowing defining memory allocation callbacks that will be given
3975 file name and line number information in additional arguments
3976 (a const char* and an int). The basic functionality remains, as
3977 well as the original possibility to just replace malloc(),
3978 realloc() and free() by functions that do not know about these
3979 additional arguments. To register and find out the current
3980 settings for extended allocation functions, the following
3981 functions are provided:
3983 CRYPTO_set_mem_ex_functions
3984 CRYPTO_set_locked_mem_ex_functions
3985 CRYPTO_get_mem_ex_functions
3986 CRYPTO_get_locked_mem_ex_functions
3988 These work the same way as CRYPTO_set_mem_functions and friends.
3989 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
3990 extended allocation function is enabled.
3991 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
3992 a conventional allocation function is enabled.
3993 [Richard Levitte, Bodo Moeller]
3995 *) Finish off removing the remaining LHASH function pointer casts.
3996 There should no longer be any prototype-casting required when using
3997 the LHASH abstraction, and any casts that remain are "bugs". See
3998 the callback types and macros at the head of lhash.h for details
3999 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
4002 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
4003 If /dev/[u]random devices are not available or do not return enough
4004 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
4006 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
4007 /etc/entropy will be queried once each in this sequence, quering stops
4008 when enough entropy was collected without querying more sockets.
4011 *) Change the Unix RAND_poll() variant to be able to poll several
4012 random devices, as specified by DEVRANDOM, until a sufficient amount
4013 of data has been collected. We spend at most 10 ms on each file
4014 (select timeout) and read in non-blocking mode. DEVRANDOM now
4015 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
4016 (previously it was just the string "/dev/urandom"), so on typical
4017 platforms the 10 ms delay will never occur.
4018 Also separate out the Unix variant to its own file, rand_unix.c.
4019 For VMS, there's a currently-empty rand_vms.c.
4022 *) Move OCSP client related routines to ocsp_cl.c. These
4023 provide utility functions which an application needing
4024 to issue a request to an OCSP responder and analyse the
4025 response will typically need: as opposed to those which an
4026 OCSP responder itself would need which will be added later.
4028 OCSP_request_sign() signs an OCSP request with an API similar
4029 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
4030 response. OCSP_response_get1_basic() extracts basic response
4031 from response. OCSP_resp_find_status(): finds and extracts status
4032 information from an OCSP_CERTID structure (which will be created
4033 when the request structure is built). These are built from lower
4034 level functions which work on OCSP_SINGLERESP structures but
4035 wont normally be used unless the application wishes to examine
4036 extensions in the OCSP response for example.
4038 Replace nonce routines with a pair of functions.
4039 OCSP_request_add1_nonce() adds a nonce value and optionally
4040 generates a random value. OCSP_check_nonce() checks the
4041 validity of the nonce in an OCSP response.
4044 *) Change function OCSP_request_add() to OCSP_request_add0_id().
4045 This doesn't copy the supplied OCSP_CERTID and avoids the
4046 need to free up the newly created id. Change return type
4047 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
4048 This can then be used to add extensions to the request.
4049 Deleted OCSP_request_new(), since most of its functionality
4050 is now in OCSP_REQUEST_new() (and the case insensitive name
4051 clash) apart from the ability to set the request name which
4052 will be added elsewhere.
4055 *) Update OCSP API. Remove obsolete extensions argument from
4056 various functions. Extensions are now handled using the new
4057 OCSP extension code. New simple OCSP HTTP function which
4058 can be used to send requests and parse the response.
4061 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
4062 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
4063 uses the special reorder version of SET OF to sort the attributes
4064 and reorder them to match the encoded order. This resolves a long
4065 standing problem: a verify on a PKCS7 structure just after signing
4066 it used to fail because the attribute order did not match the
4067 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
4068 it uses the received order. This is necessary to tolerate some broken
4069 software that does not order SET OF. This is handled by encoding
4070 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
4071 to produce the required SET OF.
4074 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
4075 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
4076 files to get correct declarations of the ASN.1 item variables.
4079 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
4080 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
4081 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
4082 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
4083 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
4084 ASN1_ITEM and no wrapper functions.
4087 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
4088 replace the old function pointer based I/O routines. Change most of
4089 the *_d2i_bio() and *_d2i_fp() functions to use these.
4092 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
4093 lines, recognice more "algorithms" that can be deselected, and make
4094 it complain about algorithm deselection that isn't recognised.
4097 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
4098 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
4099 to use new functions. Add NO_ASN1_OLD which can be set to remove
4100 some old style ASN1 functions: this can be used to determine if old
4101 code will still work when these eventually go away.
4104 *) New extension functions for OCSP structures, these follow the
4105 same conventions as certificates and CRLs.
4108 *) New function X509V3_add1_i2d(). This automatically encodes and
4109 adds an extension. Its behaviour can be customised with various
4110 flags to append, replace or delete. Various wrappers added for
4111 certifcates and CRLs.
4114 *) Fix to avoid calling the underlying ASN1 print routine when
4115 an extension cannot be parsed. Correct a typo in the
4116 OCSP_SERVICELOC extension. Tidy up print OCSP format.
4119 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
4120 entries for variables.
4123 *) Add functionality to apps/openssl.c for detecting locking
4124 problems: As the program is single-threaded, all we have
4125 to do is register a locking callback using an array for
4126 storing which locks are currently held by the program.
4129 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
4130 SSL_get_ex_data_X509_STORE_idx(), which is used in
4131 ssl_verify_cert_chain() and thus can be called at any time
4132 during TLS/SSL handshakes so that thread-safety is essential.
4133 Unfortunately, the ex_data design is not at all suited
4134 for multi-threaded use, so it probably should be abolished.
4137 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
4138 [Broadcom, tweaked and integrated by Geoff Thorpe]
4140 *) Move common extension printing code to new function
4141 X509V3_print_extensions(). Reorganise OCSP print routines and
4142 implement some needed OCSP ASN1 functions. Add OCSP extensions.
4145 *) New function X509_signature_print() to remove duplication in some
4149 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
4150 set (this was treated exactly the same as SET OF previously). This
4151 is used to reorder the STACK representing the structure to match the
4152 encoding. This will be used to get round a problem where a PKCS7
4153 structure which was signed could not be verified because the STACK
4154 order did not reflect the encoded order.
4157 *) Reimplement the OCSP ASN1 module using the new code.
4160 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
4161 for its ASN1 operations. The old style function pointers still exist
4162 for now but they will eventually go away.
4165 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
4166 completely replaces the old ASN1 functionality with a table driven
4167 encoder and decoder which interprets an ASN1_ITEM structure describing
4168 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
4169 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
4170 has also been converted to the new form.
4173 *) Change BN_mod_exp_recp so that negative moduli are tolerated
4174 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
4175 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
4176 for negative moduli.
4179 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
4180 of not touching the result's sign bit.
4183 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
4187 *) Changed the LHASH code to use prototypes for callbacks, and created
4188 macros to declare and implement thin (optionally static) functions
4189 that provide type-safety and avoid function pointer casting for the
4190 type-specific callbacks.
4193 *) Added Kerberos Cipher Suites to be used with TLS, as written in
4195 [Veers Staats <staatsvr@asc.hpc.mil>,
4196 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
4198 *) Reformat the FAQ so the different questions and answers can be divided
4199 in sections depending on the subject.
4202 *) Have the zlib compression code load ZLIB.DLL dynamically under
4206 *) New function BN_mod_sqrt for computing square roots modulo a prime
4207 (using the probabilistic Tonelli-Shanks algorithm unless
4208 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
4209 be handled deterministically).
4210 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4212 *) Make BN_mod_inverse faster by explicitly handling small quotients
4213 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
4214 512 bits], about 30% for larger ones [1024 or 2048 bits].)
4217 *) New function BN_kronecker.
4220 *) Fix BN_gcd so that it works on negative inputs; the result is
4221 positive unless both parameters are zero.
4222 Previously something reasonably close to an infinite loop was
4223 possible because numbers could be growing instead of shrinking
4224 in the implementation of Euclid's algorithm.
4227 *) Fix BN_is_word() and BN_is_one() macros to take into account the
4228 sign of the number in question.
4230 Fix BN_is_word(a,w) to work correctly for w == 0.
4232 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
4233 because its test if the absolute value of 'a' equals 'w'.
4234 Note that BN_abs_is_word does *not* handle w == 0 reliably;
4235 it exists mostly for use in the implementations of BN_is_zero(),
4236 BN_is_one(), and BN_is_word().
4239 *) New function BN_swap.
4242 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
4243 the exponentiation functions are more likely to produce reasonable
4244 results on negative inputs.
4247 *) Change BN_mod_mul so that the result is always non-negative.
4248 Previously, it could be negative if one of the factors was negative;
4249 I don't think anyone really wanted that behaviour.
4252 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
4253 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
4254 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
4255 and add new functions:
4264 BN_mod_lshift1_quick
4268 These functions always generate non-negative results.
4270 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
4271 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
4273 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
4274 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
4275 be reduced modulo m.
4276 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4279 The following entry accidentily appeared in the CHANGES file
4280 distributed with OpenSSL 0.9.7. The modifications described in
4281 it do *not* apply to OpenSSL 0.9.7.
4283 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
4284 was actually never needed) and in BN_mul(). The removal in BN_mul()
4285 required a small change in bn_mul_part_recursive() and the addition
4286 of the functions bn_cmp_part_words(), bn_sub_part_words() and
4287 bn_add_part_words(), which do the same thing as bn_cmp_words(),
4288 bn_sub_words() and bn_add_words() except they take arrays with
4293 *) In 'openssl passwd', verify passwords read from the terminal
4294 unless the '-salt' option is used (which usually means that
4295 verification would just waste user's time since the resulting
4296 hash is going to be compared with some given password hash)
4297 or the new '-noverify' option is used.
4299 This is an incompatible change, but it does not affect
4300 non-interactive use of 'openssl passwd' (passwords on the command
4301 line, '-stdin' option, '-in ...' option) and thus should not
4305 *) Remove all references to RSAref, since there's no more need for it.
4308 *) Make DSO load along a path given through an environment variable
4309 (SHLIB_PATH) with shl_load().
4312 *) Constify the ENGINE code as a result of BIGNUM constification.
4313 Also constify the RSA code and most things related to it. In a
4314 few places, most notable in the depth of the ASN.1 code, ugly
4315 casts back to non-const were required (to be solved at a later
4319 *) Make it so the openssl application has all engines loaded by default.
4322 *) Constify the BIGNUM routines a little more.
4325 *) Add the following functions:
4327 ENGINE_load_cswift()
4329 ENGINE_load_atalla()
4331 ENGINE_load_builtin_engines()
4333 That way, an application can itself choose if external engines that
4334 are built-in in OpenSSL shall ever be used or not. The benefit is
4335 that applications won't have to be linked with libdl or other dso
4336 libraries unless it's really needed.
4338 Changed 'openssl engine' to load all engines on demand.
4339 Changed the engine header files to avoid the duplication of some
4340 declarations (they differed!).
4343 *) 'openssl engine' can now list capabilities.
4346 *) Better error reporting in 'openssl engine'.
4349 *) Never call load_dh_param(NULL) in s_server.
4352 *) Add engine application. It can currently list engines by name and
4353 identity, and test if they are actually available.
4356 *) Improve RPM specification file by forcing symbolic linking and making
4357 sure the installed documentation is also owned by root.root.
4358 [Damien Miller <djm@mindrot.org>]
4360 *) Give the OpenSSL applications more possibilities to make use of
4361 keys (public as well as private) handled by engines.
4364 *) Add OCSP code that comes from CertCo.
4367 *) Add VMS support for the Rijndael code.
4370 *) Added untested support for Nuron crypto accelerator.
4373 *) Add support for external cryptographic devices. This code was
4374 previously distributed separately as the "engine" branch.
4375 [Geoff Thorpe, Richard Levitte]
4377 *) Rework the filename-translation in the DSO code. It is now possible to
4378 have far greater control over how a "name" is turned into a filename
4379 depending on the operating environment and any oddities about the
4380 different shared library filenames on each system.
4383 *) Support threads on FreeBSD-elf in Configure.
4386 *) Fix for SHA1 assembly problem with MASM: it produces
4387 warnings about corrupt line number information when assembling
4388 with debugging information. This is caused by the overlapping
4390 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
4393 NCONF_get_number() has no error checking at all. As a replacement,
4394 NCONF_get_number_e() is defined (_e for "error checking") and is
4395 promoted strongly. The old NCONF_get_number is kept around for
4396 binary backward compatibility.
4397 Make it possible for methods to load from something other than a BIO,
4398 by providing a function pointer that is given a name instead of a BIO.
4399 For example, this could be used to load configuration data from an
4403 *) Fix for non blocking accept BIOs. Added new I/O special reason
4404 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
4405 with non blocking I/O was not possible because no retry code was
4406 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
4410 *) Added the beginnings of Rijndael support.
4413 *) Fix for bug in DirectoryString mask setting. Add support for
4414 X509_NAME_print_ex() in 'req' and X509_print_ex() function
4415 to allow certificate printing to more controllable, additional
4416 'certopt' option to 'x509' to allow new printing options to be
4420 *) Clean old EAY MD5 hack from e_os.h.
4423 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
4425 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
4426 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
4427 [Joe Orton, Steve Henson]
4429 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
4431 *) Fix additional bug revealed by the NISCC test suite:
4433 Stop bug triggering large recursion when presented with
4434 certain ASN.1 tags (CVE-2003-0851)
4437 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
4439 *) Fix various bugs revealed by running the NISCC test suite:
4441 Stop out of bounds reads in the ASN1 code when presented with
4442 invalid tags (CVE-2003-0543 and CVE-2003-0544).
4444 If verify callback ignores invalid public key errors don't try to check
4445 certificate signature with the NULL public key.
4449 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
4450 if the server requested one: as stated in TLS 1.0 and SSL 3.0
4454 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
4455 extra data after the compression methods not only for TLS 1.0
4456 but also for SSL 3.0 (as required by the specification).
4457 [Bodo Moeller; problem pointed out by Matthias Loepfe]
4459 *) Change X509_certificate_type() to mark the key as exported/exportable
4460 when it's 512 *bits* long, not 512 bytes.
4463 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
4465 *) Countermeasure against the Klima-Pokorny-Rosa extension of
4466 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
4467 a protocol version number mismatch like a decryption error
4468 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
4471 *) Turn on RSA blinding by default in the default implementation
4472 to avoid a timing attack. Applications that don't want it can call
4473 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
4474 They would be ill-advised to do so in most cases.
4475 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
4477 *) Change RSA blinding code so that it works when the PRNG is not
4478 seeded (in this case, the secret RSA exponent is abused as
4479 an unpredictable seed -- if it is not unpredictable, there
4480 is no point in blinding anyway). Make RSA blinding thread-safe
4481 by remembering the creator's thread ID in rsa->blinding and
4482 having all other threads use local one-time blinding factors
4483 (this requires more computation than sharing rsa->blinding, but
4484 avoids excessive locking; and if an RSA object is not shared
4485 between threads, blinding will still be very fast).
4488 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
4490 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
4491 via timing by performing a MAC computation even if incorrrect
4492 block cipher padding has been found. This is a countermeasure
4493 against active attacks where the attacker has to distinguish
4494 between bad padding and a MAC verification error. (CVE-2003-0078)
4496 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
4497 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
4498 Martin Vuagnoux (EPFL, Ilion)]
4500 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
4502 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
4503 memory from it's contents. This is done with a counter that will
4504 place alternating values in each byte. This can be used to solve
4505 two issues: 1) the removal of calls to memset() by highly optimizing
4506 compilers, and 2) cleansing with other values than 0, since those can
4507 be read through on certain media, for example a swap space on disk.
4510 *) Bugfix: client side session caching did not work with external caching,
4511 because the session->cipher setting was not restored when reloading
4512 from the external cache. This problem was masked, when
4513 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
4514 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
4517 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
4518 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
4519 [Zeev Lieber <zeev-l@yahoo.com>]
4521 *) Undo an undocumented change introduced in 0.9.6e which caused
4522 repeated calls to OpenSSL_add_all_ciphers() and
4523 OpenSSL_add_all_digests() to be ignored, even after calling
4527 *) Change the default configuration reader to deal with last line not
4528 being properly terminated.
4531 *) Change X509_NAME_cmp() so it applies the special rules on handling
4532 DN values that are of type PrintableString, as well as RDNs of type
4533 emailAddress where the value has the type ia5String.
4534 [stefank@valicert.com via Richard Levitte]
4536 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
4537 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
4538 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
4539 the bitwise-OR of the two for use by the majority of applications
4540 wanting this behaviour, and update the docs. The documented
4541 behaviour and actual behaviour were inconsistent and had been
4542 changing anyway, so this is more a bug-fix than a behavioural
4544 [Geoff Thorpe, diagnosed by Nadav Har'El]
4546 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
4547 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
4550 *) Fix initialization code race conditions in
4551 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
4552 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
4553 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
4554 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
4555 ssl2_get_cipher_by_char(),
4556 ssl3_get_cipher_by_char().
4557 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
4559 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
4560 the cached sessions are flushed, as the remove_cb() might use ex_data
4561 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
4562 (see [openssl.org #212]).
4563 [Geoff Thorpe, Lutz Jaenicke]
4565 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
4566 length, instead of the encoding length to d2i_ASN1_OBJECT.
4569 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
4571 *) [In 0.9.6g-engine release:]
4572 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
4573 [Lynn Gazis <lgazis@rainbow.com>]
4575 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
4577 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
4578 and get fix the header length calculation.
4579 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
4580 Alon Kantor <alonk@checkpoint.com> (and others),
4583 *) Use proper error handling instead of 'assertions' in buffer
4584 overflow checks added in 0.9.6e. This prevents DoS (the
4585 assertions could call abort()).
4586 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
4588 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
4590 *) Add various sanity checks to asn1_get_length() to reject
4591 the ASN1 length bytes if they exceed sizeof(long), will appear
4592 negative or the content length exceeds the length of the
4594 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4596 *) Fix cipher selection routines: ciphers without encryption had no flags
4597 for the cipher strength set and where therefore not handled correctly
4598 by the selection routines (PR #130).
4601 *) Fix EVP_dsa_sha macro.
4605 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
4606 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
4607 that was added in OpenSSL 0.9.6d.
4609 As the countermeasure turned out to be incompatible with some
4610 broken SSL implementations, the new option is part of SSL_OP_ALL.
4611 SSL_OP_ALL is usually employed when compatibility with weird SSL
4612 implementations is desired (e.g. '-bugs' option to 's_client' and
4613 's_server'), so the new option is automatically set in many
4617 *) Changes in security patch:
4619 Changes marked "(CHATS)" were sponsored by the Defense Advanced
4620 Research Projects Agency (DARPA) and Air Force Research Laboratory,
4621 Air Force Materiel Command, USAF, under agreement number
4624 *) Add various sanity checks to asn1_get_length() to reject
4625 the ASN1 length bytes if they exceed sizeof(long), will appear
4626 negative or the content length exceeds the length of the
4627 supplied buffer. (CVE-2002-0659)
4628 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4630 *) Assertions for various potential buffer overflows, not known to
4632 [Ben Laurie (CHATS)]
4634 *) Various temporary buffers to hold ASCII versions of integers were
4635 too small for 64 bit platforms. (CVE-2002-0655)
4636 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
4638 *) Remote buffer overflow in SSL3 protocol - an attacker could
4639 supply an oversized session ID to a client. (CVE-2002-0656)
4640 [Ben Laurie (CHATS)]
4642 *) Remote buffer overflow in SSL2 protocol - an attacker could
4643 supply an oversized client master key. (CVE-2002-0656)
4644 [Ben Laurie (CHATS)]
4646 Changes between 0.9.6c and 0.9.6d [9 May 2002]
4648 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
4649 encoded as NULL) with id-dsa-with-sha1.
4650 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
4652 *) Check various X509_...() return values in apps/req.c.
4653 [Nils Larsch <nla@trustcenter.de>]
4655 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
4656 an end-of-file condition would erronously be flagged, when the CRLF
4657 was just at the end of a processed block. The bug was discovered when
4658 processing data through a buffering memory BIO handing the data to a
4659 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
4660 <ptsekov@syntrex.com> and Nedelcho Stanev.
4663 *) Implement a countermeasure against a vulnerability recently found
4664 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
4665 before application data chunks to avoid the use of known IVs
4666 with data potentially chosen by the attacker.
4669 *) Fix length checks in ssl3_get_client_hello().
4672 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
4673 to prevent ssl3_read_internal() from incorrectly assuming that
4674 ssl3_read_bytes() found application data while handshake
4675 processing was enabled when in fact s->s3->in_read_app_data was
4676 merely automatically cleared during the initial handshake.
4677 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
4679 *) Fix object definitions for Private and Enterprise: they were not
4680 recognized in their shortname (=lowercase) representation. Extend
4681 obj_dat.pl to issue an error when using undefined keywords instead
4682 of silently ignoring the problem (Svenning Sorensen
4683 <sss@sss.dnsalias.net>).
4686 *) Fix DH_generate_parameters() so that it works for 'non-standard'
4687 generators, i.e. generators other than 2 and 5. (Previously, the
4688 code did not properly initialise the 'add' and 'rem' values to
4689 BN_generate_prime().)
4691 In the new general case, we do not insist that 'generator' is
4692 actually a primitive root: This requirement is rather pointless;
4693 a generator of the order-q subgroup is just as good, if not
4697 *) Map new X509 verification errors to alerts. Discovered and submitted by
4698 Tom Wu <tom@arcot.com>.
4701 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
4702 returning non-zero before the data has been completely received
4703 when using non-blocking I/O.
4704 [Bodo Moeller; problem pointed out by John Hughes]
4706 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
4707 [Ben Laurie, Lutz Jaenicke]
4709 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
4710 Yoram Zahavi <YoramZ@gilian.com>).
4713 *) Add information about CygWin 1.3 and on, and preserve proper
4714 configuration for the versions before that.
4715 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
4717 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
4718 check whether we deal with a copy of a session and do not delete from
4719 the cache in this case. Problem reported by "Izhar Shoshani Levi"
4720 <izhar@checkpoint.com>.
4723 *) Do not store session data into the internal session cache, if it
4724 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
4725 flag is set). Proposed by Aslam <aslam@funk.com>.
4728 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
4732 *) [In 0.9.6d-engine release:]
4733 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4734 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4736 *) Add the configuration target linux-s390x.
4737 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
4739 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
4740 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
4741 variable as an indication that a ClientHello message has been
4742 received. As the flag value will be lost between multiple
4743 invocations of ssl3_accept when using non-blocking I/O, the
4744 function may not be aware that a handshake has actually taken
4745 place, thus preventing a new session from being added to the
4748 To avoid this problem, we now set s->new_session to 2 instead of
4749 using a local variable.
4750 [Lutz Jaenicke, Bodo Moeller]
4752 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
4753 if the SSL_R_LENGTH_MISMATCH error is detected.
4754 [Geoff Thorpe, Bodo Moeller]
4756 *) New 'shared_ldflag' column in Configure platform table.
4759 *) Fix EVP_CIPHER_mode macro.
4760 ["Dan S. Camper" <dan@bti.net>]
4762 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
4763 type, we must throw them away by setting rr->length to 0.
4764 [D P Chang <dpc@qualys.com>]
4766 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
4768 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
4769 <Dominikus.Scherkl@biodata.com>. (The previous implementation
4770 worked incorrectly for those cases where range = 10..._2 and
4771 3*range is two bits longer than range.)
4774 *) Only add signing time to PKCS7 structures if it is not already
4778 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
4779 OBJ_ld_ce should be OBJ_id_ce.
4780 Also some ip-pda OIDs in crypto/objects/objects.txt were
4781 incorrect (cf. RFC 3039).
4782 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
4784 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
4785 returns early because it has nothing to do.
4786 [Andy Schneider <andy.schneider@bjss.co.uk>]
4788 *) [In 0.9.6c-engine release:]
4789 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
4790 [Andy Schneider <andy.schneider@bjss.co.uk>]
4792 *) [In 0.9.6c-engine release:]
4793 Add support for Cryptographic Appliance's keyserver technology.
4794 (Use engine 'keyclient')
4795 [Cryptographic Appliances and Geoff Thorpe]
4797 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
4798 is called via tools/c89.sh because arguments have to be
4799 rearranged (all '-L' options must appear before the first object
4801 [Richard Shapiro <rshapiro@abinitio.com>]
4803 *) [In 0.9.6c-engine release:]
4804 Add support for Broadcom crypto accelerator cards, backported
4806 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
4808 *) [In 0.9.6c-engine release:]
4809 Add support for SureWare crypto accelerator cards from
4810 Baltimore Technologies. (Use engine 'sureware')
4811 [Baltimore Technologies and Mark Cox]
4813 *) [In 0.9.6c-engine release:]
4814 Add support for crypto accelerator cards from Accelerated
4815 Encryption Processing, www.aep.ie. (Use engine 'aep')
4816 [AEP Inc. and Mark Cox]
4818 *) Add a configuration entry for gcc on UnixWare.
4819 [Gary Benson <gbenson@redhat.com>]
4821 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
4822 messages are stored in a single piece (fixed-length part and
4823 variable-length part combined) and fix various bugs found on the way.
4826 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
4827 instead. BIO_gethostbyname() does not know what timeouts are
4828 appropriate, so entries would stay in cache even when they have
4830 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
4832 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
4833 faced with a pathologically small ClientHello fragment that does
4834 not contain client_version: Instead of aborting with an error,
4835 simply choose the highest available protocol version (i.e.,
4836 TLS 1.0 unless it is disabled). In practice, ClientHello
4837 messages are never sent like this, but this change gives us
4838 strictly correct behaviour at least for TLS.
4841 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
4842 never resets s->method to s->ctx->method when called from within
4843 one of the SSL handshake functions.
4844 [Bodo Moeller; problem pointed out by Niko Baric]
4846 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
4847 (sent using the client's version number) if client_version is
4848 smaller than the protocol version in use. Also change
4849 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
4850 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
4851 the client will at least see that alert.
4854 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
4858 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
4859 client receives HelloRequest while in a handshake.
4860 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
4862 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
4863 should end in 'break', not 'goto end' which circuments various
4864 cleanups done in state SSL_ST_OK. But session related stuff
4865 must be disabled for SSL_ST_OK in the case that we just sent a
4868 Also avoid some overhead by not calling ssl_init_wbio_buffer()
4869 before just sending a HelloRequest.
4870 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
4872 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
4873 reveal whether illegal block cipher padding was found or a MAC
4874 verification error occured. (Neither SSLerr() codes nor alerts
4875 are directly visible to potential attackers, but the information
4876 may leak via logfiles.)
4878 Similar changes are not required for the SSL 2.0 implementation
4879 because the number of padding bytes is sent in clear for SSL 2.0,
4880 and the extra bytes are just ignored. However ssl/s2_pkt.c
4881 failed to verify that the purported number of padding bytes is in
4885 *) Add OpenUNIX-8 support including shared libraries
4886 (Boyd Lynn Gerber <gerberb@zenez.com>).
4889 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
4890 'wristwatch attack' using huge encoding parameters (cf.
4891 James H. Manger's CRYPTO 2001 paper). Note that the
4892 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
4893 encoding parameters and hence was not vulnerable.
4896 *) BN_sqr() bug fix.
4897 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
4899 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
4900 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
4901 followed by modular reduction.
4902 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
4904 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
4905 equivalent based on BN_pseudo_rand() instead of BN_rand().
4908 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
4909 This function was broken, as the check for a new client hello message
4910 to handle SGC did not allow these large messages.
4911 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
4914 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
4917 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
4918 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
4921 *) Rework the configuration and shared library support for Tru64 Unix.
4922 The configuration part makes use of modern compiler features and
4923 still retains old compiler behavior for those that run older versions
4924 of the OS. The shared library support part includes a variant that
4925 uses the RPATH feature, and is available through the special
4926 configuration target "alpha-cc-rpath", which will never be selected
4928 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
4930 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
4931 with the same message size as in ssl3_get_certificate_request().
4932 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
4933 messages might inadvertently be reject as too long.
4934 [Petr Lampa <lampa@fee.vutbr.cz>]
4936 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
4939 *) Modified SSL library such that the verify_callback that has been set
4940 specificly for an SSL object with SSL_set_verify() is actually being
4941 used. Before the change, a verify_callback set with this function was
4942 ignored and the verify_callback() set in the SSL_CTX at the time of
4943 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
4944 to allow the necessary settings.
4947 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
4948 explicitly to NULL, as at least on Solaris 8 this seems not always to be
4949 done automatically (in contradiction to the requirements of the C
4950 standard). This made problems when used from OpenSSH.
4953 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
4954 dh->length and always used
4956 BN_rand_range(priv_key, dh->p).
4958 BN_rand_range() is not necessary for Diffie-Hellman, and this
4959 specific range makes Diffie-Hellman unnecessarily inefficient if
4960 dh->length (recommended exponent length) is much smaller than the
4961 length of dh->p. We could use BN_rand_range() if the order of
4962 the subgroup was stored in the DH structure, but we only have
4967 BN_rand(priv_key, l, ...)
4969 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
4975 RSA_eay_public_encrypt
4976 RSA_eay_private_decrypt
4977 RSA_eay_private_encrypt (signing)
4978 RSA_eay_public_decrypt (signature verification)
4980 (default implementations for RSA_public_encrypt,
4981 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
4982 always reject numbers >= n.
4985 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
4986 to synchronize access to 'locking_thread'. This is necessary on
4987 systems where access to 'locking_thread' (an 'unsigned long'
4988 variable) is not atomic.
4991 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
4992 *before* setting the 'crypto_lock_rand' flag. The previous code had
4993 a race condition if 0 is a valid thread ID.
4994 [Travis Vitek <vitek@roguewave.com>]
4996 *) Add support for shared libraries under Irix.
4997 [Albert Chin-A-Young <china@thewrittenword.com>]
4999 *) Add configuration option to build on Linux on both big-endian and
5001 [Ralf Baechle <ralf@uni-koblenz.de>]
5003 *) Add the possibility to create shared libraries on HP-UX.
5006 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
5008 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
5009 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
5010 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
5011 PRNG state recovery was possible based on the output of
5012 one PRNG request appropriately sized to gain knowledge on
5013 'md' followed by enough consecutive 1-byte PRNG requests
5014 to traverse all of 'state'.
5016 1. When updating 'md_local' (the current thread's copy of 'md')
5017 during PRNG output generation, hash all of the previous
5018 'md_local' value, not just the half used for PRNG output.
5020 2. Make the number of bytes from 'state' included into the hash
5021 independent from the number of PRNG bytes requested.
5023 The first measure alone would be sufficient to avoid
5024 Markku-Juhani's attack. (Actually it had never occurred
5025 to me that the half of 'md_local' used for chaining was the
5026 half from which PRNG output bytes were taken -- I had always
5027 assumed that the secret half would be used.) The second
5028 measure makes sure that additional data from 'state' is never
5029 mixed into 'md_local' in small portions; this heuristically
5030 further strengthens the PRNG.
5033 *) Fix crypto/bn/asm/mips3.s.
5036 *) When only the key is given to "enc", the IV is undefined. Print out
5037 an error message in this case.
5040 *) Handle special case when X509_NAME is empty in X509 printing routines.
5043 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
5044 positive and less than q.
5047 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
5048 used: it isn't thread safe and the add_lock_callback should handle
5050 [Paul Rose <Paul.Rose@bridge.com>]
5052 *) Verify that incoming data obeys the block size in
5053 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
5057 [Ulf Möller, Bodo Möller]
5059 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
5060 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
5061 when fixing the server behaviour for backwards-compatible 'client
5062 hello' messages. (Note that the attack is impractical against
5063 SSL 3.0 and TLS 1.0 anyway because length and version checking
5064 means that the probability of guessing a valid ciphertext is
5065 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
5068 Before 0.9.5, the countermeasure (hide the error by generating a
5069 random 'decryption result') did not work properly because
5070 ERR_clear_error() was missing, meaning that SSL_get_error() would
5071 detect the supposedly ignored error.
5073 Both problems are now fixed.
5076 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
5077 (previously it was 1024).
5080 *) Fix for compatibility mode trust settings: ignore trust settings
5081 unless some valid trust or reject settings are present.
5084 *) Fix for blowfish EVP: its a variable length cipher.
5087 *) Fix various bugs related to DSA S/MIME verification. Handle missing
5088 parameters in DSA public key structures and return an error in the
5089 DSA routines if parameters are absent.
5092 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
5093 in the current directory if neither $RANDFILE nor $HOME was set.
5094 RAND_file_name() in 0.9.6a returned NULL in this case. This has
5095 caused some confusion to Windows users who haven't defined $HOME.
5096 Thus RAND_file_name() is changed again: e_os.h can define a
5097 DEFAULT_HOME, which will be used if $HOME is not set.
5098 For Windows, we use "C:"; on other platforms, we still require
5099 environment variables.
5101 *) Move 'if (!initialized) RAND_poll()' into regions protected by
5102 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
5103 having multiple threads call RAND_poll() concurrently.
5106 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
5107 combination of a flag and a thread ID variable.
5108 Otherwise while one thread is in ssleay_rand_bytes (which sets the
5109 flag), *other* threads can enter ssleay_add_bytes without obeying
5110 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
5111 that they do not hold after the first thread unsets add_do_not_lock).
5114 *) Change bctest again: '-x' expressions are not available in all
5118 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
5120 *) Fix a couple of memory leaks in PKCS7_dataDecode()
5121 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
5123 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
5124 the default extension for executables, if any. Also, make the perl
5125 scripts that use symlink() to test if it really exists and use "cp"
5126 if it doesn't. All this made OpenSSL compilable and installable in
5130 *) Fix for asn1_GetSequence() for indefinite length constructed data.
5131 If SEQUENCE is length is indefinite just set c->slen to the total
5132 amount of data available.
5133 [Steve Henson, reported by shige@FreeBSD.org]
5134 [This change does not apply to 0.9.7.]
5136 *) Change bctest to avoid here-documents inside command substitution
5137 (workaround for FreeBSD /bin/sh bug).
5138 For compatibility with Ultrix, avoid shell functions (introduced
5139 in the bctest version that searches along $PATH).
5142 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
5143 with des_encrypt() defined on some operating systems, like Solaris
5147 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
5148 On the Importance of Eliminating Errors in Cryptographic
5149 Computations, J. Cryptology 14 (2001) 2, 101-119,
5150 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
5153 *) MIPS assembler BIGNUM division bug fix.
5156 *) Disabled incorrect Alpha assembler code.
5159 *) Fix PKCS#7 decode routines so they correctly update the length
5160 after reading an EOC for the EXPLICIT tag.
5162 [This change does not apply to 0.9.7.]
5164 *) Fix bug in PKCS#12 key generation routines. This was triggered
5165 if a 3DES key was generated with a 0 initial byte. Include
5166 PKCS12_BROKEN_KEYGEN compilation option to retain the old
5167 (but broken) behaviour.
5170 *) Enhance bctest to search for a working bc along $PATH and print
5172 [Tim Rice <tim@multitalents.net> via Richard Levitte]
5174 *) Fix memory leaks in err.c: free err_data string if necessary;
5175 don't write to the wrong index in ERR_set_error_data.
5178 *) Implement ssl23_peek (analogous to ssl23_read), which previously
5182 *) Replace rdtsc with _emit statements for VC++ version 5.
5183 [Jeremy Cooper <jeremy@baymoo.org>]
5185 *) Make it possible to reuse SSLv2 sessions.
5188 *) In copy_email() check for >= 0 as a return value for
5189 X509_NAME_get_index_by_NID() since 0 is a valid index.
5190 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
5192 *) Avoid coredump with unsupported or invalid public keys by checking if
5193 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
5194 PKCS7_verify() fails with non detached data.
5197 *) Don't use getenv in library functions when run as setuid/setgid.
5198 New function OPENSSL_issetugid().
5201 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
5202 due to incorrect handling of multi-threading:
5204 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
5206 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
5208 3. Count how many times MemCheck_off() has been called so that
5209 nested use can be treated correctly. This also avoids
5210 inband-signalling in the previous code (which relied on the
5211 assumption that thread ID 0 is impossible).
5214 *) Add "-rand" option also to s_client and s_server.
5217 *) Fix CPU detection on Irix 6.x.
5218 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
5219 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5221 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
5224 [This change does not apply to 0.9.7.]
5226 *) Use the cached encoding of an X509_NAME structure rather than
5227 copying it. This is apparently the reason for the libsafe "errors"
5228 but the code is actually correct.
5231 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
5232 Bleichenbacher's DSA attack.
5233 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
5234 to be set and top=0 forces the highest bit to be set; top=-1 is new
5235 and leaves the highest bit random.
5236 [Ulf Moeller, Bodo Moeller]
5238 *) In the NCONF_...-based implementations for CONF_... queries
5239 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
5240 a temporary CONF structure with the data component set to NULL
5241 (which gives segmentation faults in lh_retrieve).
5242 Instead, use NULL for the CONF pointer in CONF_get_string and
5243 CONF_get_number (which may use environment variables) and directly
5244 return NULL from CONF_get_section.
5247 *) Fix potential buffer overrun for EBCDIC.
5250 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
5251 keyUsage if basicConstraints absent for a CA.
5254 *) Make SMIME_write_PKCS7() write mail header values with a format that
5255 is more generally accepted (no spaces before the semicolon), since
5256 some programs can't parse those values properly otherwise. Also make
5257 sure BIO's that break lines after each write do not create invalid
5261 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
5262 macros previously used would not encode an empty SEQUENCE OF
5263 and break the signature.
5265 [This change does not apply to 0.9.7.]
5267 *) Zero the premaster secret after deriving the master secret in
5271 *) Add some EVP_add_digest_alias registrations (as found in
5272 OpenSSL_add_all_digests()) to SSL_library_init()
5273 aka OpenSSL_add_ssl_algorithms(). This provides improved
5274 compatibility with peers using X.509 certificates
5275 with unconventional AlgorithmIdentifier OIDs.
5278 *) Fix for Irix with NO_ASM.
5279 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5281 *) ./config script fixes.
5282 [Ulf Moeller, Richard Levitte]
5284 *) Fix 'openssl passwd -1'.
5287 *) Change PKCS12_key_gen_asc() so it can cope with non null
5288 terminated strings whose length is passed in the passlen
5289 parameter, for example from PEM callbacks. This was done
5290 by adding an extra length parameter to asc2uni().
5291 [Steve Henson, reported by <oddissey@samsung.co.kr>]
5293 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
5294 call failed, free the DSA structure.
5297 *) Fix to uni2asc() to cope with zero length Unicode strings.
5298 These are present in some PKCS#12 files.
5301 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
5302 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
5303 when writing a 32767 byte record.
5304 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
5306 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
5307 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
5309 (RSA objects have a reference count access to which is protected
5310 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
5311 so they are meant to be shared between threads.)
5312 [Bodo Moeller, Geoff Thorpe; original patch submitted by
5313 "Reddie, Steven" <Steven.Reddie@ca.com>]
5315 *) Fix a deadlock in CRYPTO_mem_leaks().
5318 *) Use better test patterns in bntest.
5321 *) rand_win.c fix for Borland C.
5324 *) BN_rshift bugfix for n == 0.
5327 *) Add a 'bctest' script that checks for some known 'bc' bugs
5328 so that 'make test' does not abort just because 'bc' is broken.
5331 *) Store verify_result within SSL_SESSION also for client side to
5332 avoid potential security hole. (Re-used sessions on the client side
5333 always resulted in verify_result==X509_V_OK, not using the original
5334 result of the server certificate verification.)
5337 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
5338 SSL3_RT_APPLICATION_DATA, return 0.
5339 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
5343 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
5344 releases, have been re-implemented by renaming the previous
5345 implementations of ssl2_read and ssl3_read to ssl2_read_internal
5346 and ssl3_read_internal, respectively, and adding 'peek' parameters
5347 to them. The new ssl[23]_{read,peek} functions are calls to
5348 ssl[23]_read_internal with the 'peek' flag set appropriately.
5349 A 'peek' parameter has also been added to ssl3_read_bytes, which
5350 does the actual work for ssl3_read_internal.
5353 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
5354 the method-specific "init()" handler. Also clean up ex_data after
5355 calling the method-specific "finish()" handler. Previously, this was
5356 happening the other way round.
5359 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
5360 The previous value, 12, was not always sufficient for BN_mod_exp().
5363 *) Make sure that shared libraries get the internal name engine with
5364 the full version number and not just 0. This should mark the
5365 shared libraries as not backward compatible. Of course, this should
5366 be changed again when we can guarantee backward binary compatibility.
5369 *) Fix typo in get_cert_by_subject() in by_dir.c
5370 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
5372 *) Rework the system to generate shared libraries:
5374 - Make note of the expected extension for the shared libraries and
5375 if there is a need for symbolic links from for example libcrypto.so.0
5376 to libcrypto.so.0.9.7. There is extended info in Configure for
5379 - Make as few rebuilds of the shared libraries as possible.
5381 - Still avoid linking the OpenSSL programs with the shared libraries.
5383 - When installing, install the shared libraries separately from the
5387 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
5389 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
5390 and not in SSL_clear because the latter is also used by the
5391 accept/connect functions; previously, the settings made by
5392 SSL_set_read_ahead would be lost during the handshake.
5393 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
5395 *) Correct util/mkdef.pl to be selective about disabled algorithms.
5396 Previously, it would create entries for disableed algorithms no
5400 *) Added several new manual pages for SSL_* function.
5403 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
5405 *) In ssl23_get_client_hello, generate an error message when faced
5406 with an initial SSL 3.0/TLS record that is too small to contain the
5407 first two bytes of the ClientHello message, i.e. client_version.
5408 (Note that this is a pathologic case that probably has never happened
5409 in real life.) The previous approach was to use the version number
5410 from the record header as a substitute; but our protocol choice
5411 should not depend on that one because it is not authenticated
5412 by the Finished messages.
5415 *) More robust randomness gathering functions for Windows.
5416 [Jeffrey Altman <jaltman@columbia.edu>]
5418 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
5419 not set then we don't setup the error code for issuer check errors
5420 to avoid possibly overwriting other errors which the callback does
5421 handle. If an application does set the flag then we assume it knows
5422 what it is doing and can handle the new informational codes
5426 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
5427 a general "ANY" type, as such it should be able to decode anything
5428 including tagged types. However it didn't check the class so it would
5429 wrongly interpret tagged types in the same way as their universal
5430 counterpart and unknown types were just rejected. Changed so that the
5431 tagged and unknown types are handled in the same way as a SEQUENCE:
5432 that is the encoding is stored intact. There is also a new type
5433 "V_ASN1_OTHER" which is used when the class is not universal, in this
5434 case we have no idea what the actual type is so we just lump them all
5438 *) On VMS, stdout may very well lead to a file that is written to
5439 in a record-oriented fashion. That means that every write() will
5440 write a separate record, which will be read separately by the
5441 programs trying to read from it. This can be very confusing.
5443 The solution is to put a BIO filter in the way that will buffer
5444 text until a linefeed is reached, and then write everything a
5445 line at a time, so every record written will be an actual line,
5446 not chunks of lines and not (usually doesn't happen, but I've
5447 seen it once) several lines in one record. BIO_f_linebuffer() is
5450 Currently, it's a VMS-only method, because that's where it has
5451 been tested well enough.
5454 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
5455 it can return incorrect results.
5456 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
5457 but it was in 0.9.6-beta[12].)
5460 *) Disable the check for content being present when verifying detached
5461 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
5462 include zero length content when signing messages.
5465 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
5466 BIO_ctrl (for BIO pairs).
5469 *) Add DSO method for VMS.
5472 *) Bug fix: Montgomery multiplication could produce results with the
5476 *) Add RPM specification openssl.spec and modify it to build three
5477 packages. The default package contains applications, application
5478 documentation and run-time libraries. The devel package contains
5479 include files, static libraries and function documentation. The
5480 doc package contains the contents of the doc directory. The original
5481 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
5484 *) Add a large number of documentation files for many SSL routines.
5485 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5487 *) Add a configuration entry for Sony News 4.
5488 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
5490 *) Don't set the two most significant bits to one when generating a
5491 random number < q in the DSA library.
5494 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
5495 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
5496 the underlying transport is blocking) if a handshake took place.
5497 (The default behaviour is needed by applications such as s_client
5498 and s_server that use select() to determine when to use SSL_read;
5499 but for applications that know in advance when to expect data, it
5500 just makes things more complicated.)
5503 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
5507 *) Add a few more EBCDIC conditionals that make `req' and `x509'
5508 work better on such systems.
5509 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
5511 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
5512 Update PKCS12_parse() so it copies the friendlyName and the
5513 keyid to the certificates aux info.
5516 *) Fix bug in PKCS7_verify() which caused an infinite loop
5517 if there was more than one signature.
5518 [Sven Uszpelkat <su@celocom.de>]
5520 *) Major change in util/mkdef.pl to include extra information
5521 about each symbol, as well as presentig variables as well
5522 as functions. This change means that there's n more need
5523 to rebuild the .num files when some algorithms are excluded.
5526 *) Allow the verify time to be set by an application,
5527 rather than always using the current time.
5530 *) Phase 2 verify code reorganisation. The certificate
5531 verify code now looks up an issuer certificate by a
5532 number of criteria: subject name, authority key id
5533 and key usage. It also verifies self signed certificates
5534 by the same criteria. The main comparison function is
5535 X509_check_issued() which performs these checks.
5537 Lot of changes were necessary in order to support this
5538 without completely rewriting the lookup code.
5540 Authority and subject key identifier are now cached.
5542 The LHASH 'certs' is X509_STORE has now been replaced
5543 by a STACK_OF(X509_OBJECT). This is mainly because an
5544 LHASH can't store or retrieve multiple objects with
5545 the same hash value.
5547 As a result various functions (which were all internal
5548 use only) have changed to handle the new X509_STORE
5549 structure. This will break anything that messed round
5550 with X509_STORE internally.
5552 The functions X509_STORE_add_cert() now checks for an
5553 exact match, rather than just subject name.
5555 The X509_STORE API doesn't directly support the retrieval
5556 of multiple certificates matching a given criteria, however
5557 this can be worked round by performing a lookup first
5558 (which will fill the cache with candidate certificates)
5559 and then examining the cache for matches. This is probably
5560 the best we can do without throwing out X509_LOOKUP
5561 entirely (maybe later...).
5563 The X509_VERIFY_CTX structure has been enhanced considerably.
5565 All certificate lookup operations now go via a get_issuer()
5566 callback. Although this currently uses an X509_STORE it
5567 can be replaced by custom lookups. This is a simple way
5568 to bypass the X509_STORE hackery necessary to make this
5569 work and makes it possible to use more efficient techniques
5570 in future. A very simple version which uses a simple
5571 STACK for its trusted certificate store is also provided
5572 using X509_STORE_CTX_trusted_stack().
5574 The verify_cb() and verify() callbacks now have equivalents
5575 in the X509_STORE_CTX structure.
5577 X509_STORE_CTX also has a 'flags' field which can be used
5578 to customise the verify behaviour.
5581 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
5582 excludes S/MIME capabilities.
5585 *) When a certificate request is read in keep a copy of the
5586 original encoding of the signed data and use it when outputing
5587 again. Signatures then use the original encoding rather than
5588 a decoded, encoded version which may cause problems if the
5589 request is improperly encoded.
5592 *) For consistency with other BIO_puts implementations, call
5593 buffer_write(b, ...) directly in buffer_puts instead of calling
5596 In BIO_puts, increment b->num_write as in BIO_write.
5597 [Peter.Sylvester@EdelWeb.fr]
5599 *) Fix BN_mul_word for the case where the word is 0. (We have to use
5600 BN_zero, we may not return a BIGNUM with an array consisting of
5604 *) Avoid calling abort() from within the library when problems are
5605 detected, except if preprocessor symbols have been defined
5606 (such as REF_CHECK, BN_DEBUG etc.).
5609 *) New openssl application 'rsautl'. This utility can be
5610 used for low level RSA operations. DER public key
5611 BIO/fp routines also added.
5614 *) New Configure entry and patches for compiling on QNX 4.
5615 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
5617 *) A demo state-machine implementation was sponsored by
5618 Nuron (http://www.nuron.com/) and is now available in
5619 demos/state_machine.
5622 *) New options added to the 'dgst' utility for signature
5623 generation and verification.
5626 *) Unrecognized PKCS#7 content types are now handled via a
5627 catch all ASN1_TYPE structure. This allows unsupported
5628 types to be stored as a "blob" and an application can
5629 encode and decode it manually.
5632 *) Fix various signed/unsigned issues to make a_strex.c
5634 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
5636 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
5637 length if passed a buffer. ASN1_INTEGER_to_BN failed
5638 if passed a NULL BN and its argument was negative.
5639 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
5641 *) Modification to PKCS#7 encoding routines to output definite
5642 length encoding. Since currently the whole structures are in
5643 memory there's not real point in using indefinite length
5644 constructed encoding. However if OpenSSL is compiled with
5645 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
5648 *) Added BIO_vprintf() and BIO_vsnprintf().
5651 *) Added more prefixes to parse for in the the strings written
5652 through a logging bio, to cover all the levels that are available
5653 through syslog. The prefixes are now:
5655 PANIC, EMERG, EMR => LOG_EMERG
5656 ALERT, ALR => LOG_ALERT
5657 CRIT, CRI => LOG_CRIT
5658 ERROR, ERR => LOG_ERR
5659 WARNING, WARN, WAR => LOG_WARNING
5660 NOTICE, NOTE, NOT => LOG_NOTICE
5661 INFO, INF => LOG_INFO
5662 DEBUG, DBG => LOG_DEBUG
5664 and as before, if none of those prefixes are present at the
5665 beginning of the string, LOG_ERR is chosen.
5667 On Win32, the LOG_* levels are mapped according to this:
5669 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
5670 LOG_WARNING => EVENTLOG_WARNING_TYPE
5671 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
5675 *) Made it possible to reconfigure with just the configuration
5676 argument "reconf" or "reconfigure". The command line arguments
5677 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
5678 and are retrieved from there when reconfiguring.
5682 [Assar Westerlund <assar@sics.se>, Richard Levitte]
5684 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
5687 *) The obj_dat.pl script was messing up the sorting of object
5688 names. The reason was that it compared the quoted version
5689 of strings as a result "OCSP" > "OCSP Signing" because
5690 " > SPACE. Changed script to store unquoted versions of
5691 names and add quotes on output. It was also omitting some
5692 names from the lookup table if they were given a default
5693 value (that is if SN is missing it is given the same
5694 value as LN and vice versa), these are now added on the
5695 grounds that if an object has a name we should be able to
5696 look it up. Finally added warning output when duplicate
5697 short or long names are found.
5700 *) Changes needed for Tandem NSK.
5701 [Scott Uroff <scott@xypro.com>]
5703 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
5704 RSA_padding_check_SSLv23(), special padding was never detected
5705 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
5706 version rollback attacks was not effective.
5708 In s23_clnt.c, don't use special rollback-attack detection padding
5709 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
5710 client; similarly, in s23_srvr.c, don't do the rollback check if
5711 SSL 2.0 is the only protocol enabled in the server.
5714 *) Make it possible to get hexdumps of unprintable data with 'openssl
5715 asn1parse'. By implication, the functions ASN1_parse_dump() and
5716 BIO_dump_indent() are added.
5719 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
5720 these print out strings and name structures based on various
5721 flags including RFC2253 support and proper handling of
5722 multibyte characters. Added options to the 'x509' utility
5723 to allow the various flags to be set.
5726 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
5727 Also change the functions X509_cmp_current_time() and
5728 X509_gmtime_adj() work with an ASN1_TIME structure,
5729 this will enable certificates using GeneralizedTime in validity
5730 dates to be checked.
5733 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
5734 negative public key encodings) on by default,
5735 NO_NEG_PUBKEY_BUG can be set to disable it.
5738 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
5739 content octets. An i2c_ASN1_OBJECT is unnecessary because
5740 the encoding can be trivially obtained from the structure.
5743 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
5744 not read locks (CRYPTO_r_[un]lock).
5747 *) A first attempt at creating official support for shared
5748 libraries through configuration. I've kept it so the
5749 default is static libraries only, and the OpenSSL programs
5750 are always statically linked for now, but there are
5751 preparations for dynamic linking in place.
5752 This has been tested on Linux and Tru64.
5755 *) Randomness polling function for Win9x, as described in:
5756 Peter Gutmann, Software Generation of Practically Strong
5760 *) Fix so PRNG is seeded in req if using an already existing
5764 *) New options to smime application. -inform and -outform
5765 allow alternative formats for the S/MIME message including
5766 PEM and DER. The -content option allows the content to be
5767 specified separately. This should allow things like Netscape
5768 form signing output easier to verify.
5771 *) Fix the ASN1 encoding of tags using the 'long form'.
5774 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
5775 STRING types. These convert content octets to and from the
5776 underlying type. The actual tag and length octets are
5777 already assumed to have been read in and checked. These
5778 are needed because all other string types have virtually
5779 identical handling apart from the tag. By having versions
5780 of the ASN1 functions that just operate on content octets
5781 IMPLICIT tagging can be handled properly. It also allows
5782 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
5783 and ASN1_INTEGER are identical apart from the tag.
5786 *) Change the handling of OID objects as follows:
5788 - New object identifiers are inserted in objects.txt, following
5789 the syntax given in objects.README.
5790 - objects.pl is used to process obj_mac.num and create a new
5792 - obj_dat.pl is used to create a new obj_dat.h, using the data in
5795 This is currently kind of a hack, and the perl code in objects.pl
5796 isn't very elegant, but it works as I intended. The simplest way
5797 to check that it worked correctly is to look in obj_dat.h and
5798 check the array nid_objs and make sure the objects haven't moved
5799 around (this is important!). Additions are OK, as well as
5800 consistent name changes.
5803 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
5806 *) Addition of the command line parameter '-rand file' to 'openssl req'.
5807 The given file adds to whatever has already been seeded into the
5808 random pool through the RANDFILE configuration file option or
5809 environment variable, or the default random state file.
5812 *) mkstack.pl now sorts each macro group into lexical order.
5813 Previously the output order depended on the order the files
5814 appeared in the directory, resulting in needless rewriting
5818 *) Patches to make OpenSSL compile under Win32 again. Mostly
5819 work arounds for the VC++ problem that it treats func() as
5820 func(void). Also stripped out the parts of mkdef.pl that
5821 added extra typesafe functions: these no longer exist.
5824 *) Reorganisation of the stack code. The macros are now all
5825 collected in safestack.h . Each macro is defined in terms of
5826 a "stack macro" of the form SKM_<name>(type, a, b). The
5827 DEBUG_SAFESTACK is now handled in terms of function casts,
5828 this has the advantage of retaining type safety without the
5829 use of additional functions. If DEBUG_SAFESTACK is not defined
5830 then the non typesafe macros are used instead. Also modified the
5831 mkstack.pl script to handle the new form. Needs testing to see
5832 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
5833 the default if no major problems. Similar behaviour for ASN1_SET_OF
5834 and PKCS12_STACK_OF.
5837 *) When some versions of IIS use the 'NET' form of private key the
5838 key derivation algorithm is different. Normally MD5(password) is
5839 used as a 128 bit RC4 key. In the modified case
5840 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
5841 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
5842 as the old Netscape_RSA functions except they have an additional
5843 'sgckey' parameter which uses the modified algorithm. Also added
5844 an -sgckey command line option to the rsa utility. Thanks to
5845 Adrian Peck <bertie@ncipher.com> for posting details of the modified
5846 algorithm to openssl-dev.
5849 *) The evp_local.h macros were using 'c.##kname' which resulted in
5850 invalid expansion on some systems (SCO 5.0.5 for example).
5851 Corrected to 'c.kname'.
5852 [Phillip Porch <root@theporch.com>]
5854 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
5855 a STACK of email addresses from a certificate or request, these look
5856 in the subject name and the subject alternative name extensions and
5857 omit any duplicate addresses.
5860 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
5861 This makes DSA verification about 2 % faster.
5864 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
5865 (meaning that now 2^5 values will be precomputed, which is only 4 KB
5866 plus overhead for 1024 bit moduli).
5867 This makes exponentiations about 0.5 % faster for 1024 bit
5868 exponents (as measured by "openssl speed rsa2048").
5871 *) Rename memory handling macros to avoid conflicts with other
5873 Malloc => OPENSSL_malloc
5874 Malloc_locked => OPENSSL_malloc_locked
5875 Realloc => OPENSSL_realloc
5876 Free => OPENSSL_free
5879 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
5880 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
5883 *) CygWin32 support.
5884 [John Jarvie <jjarvie@newsguy.com>]
5886 *) The type-safe stack code has been rejigged. It is now only compiled
5887 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
5888 by default all type-specific stack functions are "#define"d back to
5889 standard stack functions. This results in more streamlined output
5890 but retains the type-safety checking possibilities of the original
5894 *) The STACK code has been cleaned up, and certain type declarations
5895 that didn't make a lot of sense have been brought in line. This has
5896 also involved a cleanup of sorts in safestack.h to more correctly
5897 map type-safe stack functions onto their plain stack counterparts.
5898 This work has also resulted in a variety of "const"ifications of
5899 lots of the code, especially "_cmp" operations which should normally
5900 be prototyped with "const" parameters anyway.
5903 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
5904 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
5905 (The PRNG state consists of two parts, the large pool 'state' and 'md',
5906 where all of 'md' is used each time the PRNG is used, but 'state'
5907 is used only indexed by a cyclic counter. As entropy may not be
5908 well distributed from the beginning, 'md' is important as a
5909 chaining variable. However, the output function chains only half
5910 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
5911 all of 'md', and seeding with STATE_SIZE dummy bytes will result
5912 in all of 'state' being rewritten, with the new values depending
5913 on virtually all of 'md'. This overcomes the 80 bit limitation.)
5916 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
5917 the handshake is continued after ssl_verify_cert_chain();
5918 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
5919 can lead to 'unexplainable' connection aborts later.
5920 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
5922 *) Major EVP API cipher revision.
5923 Add hooks for extra EVP features. This allows various cipher
5924 parameters to be set in the EVP interface. Support added for variable
5925 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
5926 setting of RC2 and RC5 parameters.
5928 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
5931 Remove lots of duplicated code from the EVP library. For example *every*
5932 cipher init() function handles the 'iv' in the same way according to the
5933 cipher mode. They also all do nothing if the 'key' parameter is NULL and
5934 for CFB and OFB modes they zero ctx->num.
5936 New functionality allows removal of S/MIME code RC2 hack.
5938 Most of the routines have the same form and so can be declared in terms
5941 By shifting this to the top level EVP_CipherInit() it can be removed from
5942 all individual ciphers. If the cipher wants to handle IVs or keys
5943 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
5946 Change lots of functions like EVP_EncryptUpdate() to now return a
5947 value: although software versions of the algorithms cannot fail
5948 any installed hardware versions can.
5951 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
5952 this option is set, tolerate broken clients that send the negotiated
5953 protocol version number instead of the requested protocol version
5957 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
5958 i.e. non-zero for export ciphersuites, zero otherwise.
5959 Previous versions had this flag inverted, inconsistent with
5960 rsa_tmp_cb (..._TMP_RSA_CB).
5961 [Bodo Moeller; problem reported by Amit Chopra]
5963 *) Add missing DSA library text string. Work around for some IIS
5964 key files with invalid SEQUENCE encoding.
5967 *) Add a document (doc/standards.txt) that list all kinds of standards
5968 and so on that are implemented in OpenSSL.
5971 *) Enhance c_rehash script. Old version would mishandle certificates
5972 with the same subject name hash and wouldn't handle CRLs at all.
5973 Added -fingerprint option to crl utility, to support new c_rehash
5977 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
5980 *) Fix for SSL server purpose checking. Server checking was
5981 rejecting certificates which had extended key usage present
5982 but no ssl client purpose.
5983 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
5985 *) Make PKCS#12 code work with no password. The PKCS#12 spec
5986 is a little unclear about how a blank password is handled.
5987 Since the password in encoded as a BMPString with terminating
5988 double NULL a zero length password would end up as just the
5989 double NULL. However no password at all is different and is
5990 handled differently in the PKCS#12 key generation code. NS
5991 treats a blank password as zero length. MSIE treats it as no
5992 password on export: but it will try both on import. We now do
5993 the same: PKCS12_parse() tries zero length and no password if
5994 the password is set to "" or NULL (NULL is now a valid password:
5995 it wasn't before) as does the pkcs12 application.
5998 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
5999 perror when PEM_read_bio_X509_REQ fails, the error message must
6000 be obtained from the error queue.
6003 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
6004 it in ERR_remove_state if appropriate, and change ERR_get_state
6005 accordingly to avoid race conditions (this is necessary because
6006 thread_hash is no longer constant once set).
6009 *) Bugfix for linux-elf makefile.one.
6012 *) RSA_get_default_method() will now cause a default
6013 RSA_METHOD to be chosen if one doesn't exist already.
6014 Previously this was only set during a call to RSA_new()
6015 or RSA_new_method(NULL) meaning it was possible for
6016 RSA_get_default_method() to return NULL.
6019 *) Added native name translation to the existing DSO code
6020 that will convert (if the flag to do so is set) filenames
6021 that are sufficiently small and have no path information
6022 into a canonical native form. Eg. "blah" converted to
6023 "libblah.so" or "blah.dll" etc.
6026 *) New function ERR_error_string_n(e, buf, len) which is like
6027 ERR_error_string(e, buf), but writes at most 'len' bytes
6028 including the 0 terminator. For ERR_error_string_n, 'buf'
6030 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
6032 *) CONF library reworked to become more general. A new CONF
6033 configuration file reader "class" is implemented as well as a
6034 new functions (NCONF_*, for "New CONF") to handle it. The now
6035 old CONF_* functions are still there, but are reimplemented to
6036 work in terms of the new functions. Also, a set of functions
6037 to handle the internal storage of the configuration data is
6038 provided to make it easier to write new configuration file
6039 reader "classes" (I can definitely see something reading a
6040 configuration file in XML format, for example), called _CONF_*,
6041 or "the configuration storage API"...
6043 The new configuration file reading functions are:
6045 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
6046 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
6048 NCONF_default, NCONF_WIN32
6050 NCONF_dump_fp, NCONF_dump_bio
6052 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
6053 NCONF_new creates a new CONF object. This works in the same way
6054 as other interfaces in OpenSSL, like the BIO interface.
6055 NCONF_dump_* dump the internal storage of the configuration file,
6056 which is useful for debugging. All other functions take the same
6057 arguments as the old CONF_* functions wth the exception of the
6058 first that must be a `CONF *' instead of a `LHASH *'.
6060 To make it easer to use the new classes with the old CONF_* functions,
6061 the function CONF_set_default_method is provided.
6064 *) Add '-tls1' option to 'openssl ciphers', which was already
6065 mentioned in the documentation but had not been implemented.
6066 (This option is not yet really useful because even the additional
6067 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
6070 *) Initial DSO code added into libcrypto for letting OpenSSL (and
6071 OpenSSL-based applications) load shared libraries and bind to
6072 them in a portable way.
6073 [Geoff Thorpe, with contributions from Richard Levitte]
6075 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
6077 *) Make sure _lrotl and _lrotr are only used with MSVC.
6079 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
6080 (the default implementation of RAND_status).
6082 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
6083 to '-clrext' (= clear extensions), as intended and documented.
6084 [Bodo Moeller; inconsistency pointed out by Michael Attili
6087 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
6088 was larger than the MD block size.
6089 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
6091 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
6092 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
6093 using the passed key: if the passed key was a private key the result
6094 of X509_print(), for example, would be to print out all the private key
6098 *) des_quad_cksum() byte order bug fix.
6099 [Ulf Möller, using the problem description in krb4-0.9.7, where
6100 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
6102 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
6104 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
6106 *) For easily testing in shell scripts whether some command
6107 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
6108 returns with exit code 0 iff no command of the given name is available.
6109 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
6110 the output goes to stdout and nothing is printed to stderr.
6111 Additional arguments are always ignored.
6113 Since for each cipher there is a command of the same name,
6114 the 'no-cipher' compilation switches can be tested this way.
6116 ('openssl no-XXX' is not able to detect pseudo-commands such
6117 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
6120 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
6123 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
6124 is set; it will be thrown away anyway because each handshake creates
6126 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
6127 to parameters -- in previous versions (since OpenSSL 0.9.3) the
6128 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
6129 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
6132 *) New s_client option -ign_eof: EOF at stdin is ignored, and
6133 'Q' and 'R' lose their special meanings (quit/renegotiate).
6134 This is part of what -quiet does; unlike -quiet, -ign_eof
6135 does not suppress any output.
6138 *) Add compatibility options to the purpose and trust code. The
6139 purpose X509_PURPOSE_ANY is "any purpose" which automatically
6140 accepts a certificate or CA, this was the previous behaviour,
6141 with all the associated security issues.
6143 X509_TRUST_COMPAT is the old trust behaviour: only and
6144 automatically trust self signed roots in certificate store. A
6145 new trust setting X509_TRUST_DEFAULT is used to specify that
6146 a purpose has no associated trust setting and it should instead
6147 use the value in the default purpose.
6150 *) Fix the PKCS#8 DSA private key code so it decodes keys again
6151 and fix a memory leak.
6154 *) In util/mkerr.pl (which implements 'make errors'), preserve
6155 reason strings from the previous version of the .c file, as
6156 the default to have only downcase letters (and digits) in
6157 automatically generated reasons codes is not always appropriate.
6160 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
6161 using strerror. Previously, ERR_reason_error_string() returned
6162 library names as reason strings for SYSerr; but SYSerr is a special
6163 case where small numbers are errno values, not library numbers.
6166 *) Add '-dsaparam' option to 'openssl dhparam' application. This
6167 converts DSA parameters into DH parameters. (When creating parameters,
6168 DSA_generate_parameters is used.)
6171 *) Include 'length' (recommended exponent length) in C code generated
6172 by 'openssl dhparam -C'.
6175 *) The second argument to set_label in perlasm was already being used
6176 so couldn't be used as a "file scope" flag. Moved to third argument
6180 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
6181 instead of RAND_bytes for encryption IVs and salts.
6184 *) Include RAND_status() into RAND_METHOD instead of implementing
6185 it only for md_rand.c Otherwise replacing the PRNG by calling
6186 RAND_set_rand_method would be impossible.
6189 *) Don't let DSA_generate_key() enter an infinite loop if the random
6190 number generation fails.
6193 *) New 'rand' application for creating pseudo-random output.
6196 *) Added configuration support for Linux/IA64
6197 [Rolf Haberrecker <rolf@suse.de>]
6199 *) Assembler module support for Mingw32.
6202 *) Shared library support for HPUX (in shlib/).
6203 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
6205 *) Shared library support for Solaris gcc.
6206 [Lutz Behnke <behnke@trustcenter.de>]
6208 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
6210 *) PKCS7_encrypt() was adding text MIME headers twice because they
6211 were added manually and by SMIME_crlf_copy().
6214 *) In bntest.c don't call BN_rand with zero bits argument.
6215 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
6217 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
6218 case was implemented. This caused BN_div_recp() to fail occasionally.
6221 *) Add an optional second argument to the set_label() in the perl
6222 assembly language builder. If this argument exists and is set
6223 to 1 it signals that the assembler should use a symbol whose
6224 scope is the entire file, not just the current function. This
6225 is needed with MASM which uses the format label:: for this scope.
6226 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
6228 *) Change the ASN1 types so they are typedefs by default. Before
6229 almost all types were #define'd to ASN1_STRING which was causing
6230 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
6234 *) Change names of new functions to the new get1/get0 naming
6235 convention: After 'get1', the caller owns a reference count
6236 and has to call ..._free; 'get0' returns a pointer to some
6237 data structure without incrementing reference counters.
6238 (Some of the existing 'get' functions increment a reference
6239 counter, some don't.)
6240 Similarly, 'set1' and 'add1' functions increase reference
6241 counters or duplicate objects.
6244 *) Allow for the possibility of temp RSA key generation failure:
6245 the code used to assume it always worked and crashed on failure.
6248 *) Fix potential buffer overrun problem in BIO_printf().
6249 [Ulf Möller, using public domain code by Patrick Powell; problem
6250 pointed out by David Sacerdote <das33@cornell.edu>]
6252 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
6253 RAND_egd() and RAND_status(). In the command line application,
6254 the EGD socket can be specified like a seed file using RANDFILE
6258 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
6259 Some CAs (e.g. Verisign) distribute certificates in this form.
6262 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
6263 list to exclude them. This means that no special compilation option
6264 is needed to use anonymous DH: it just needs to be included in the
6268 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
6269 EVP_MD_type. The old functionality is available in a new macro called
6270 EVP_MD_md(). Change code that uses it and update docs.
6273 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
6274 where the 'void *' argument is replaced by a function pointer argument.
6275 Previously 'void *' was abused to point to functions, which works on
6276 many platforms, but is not correct. As these functions are usually
6277 called by macros defined in OpenSSL header files, most source code
6278 should work without changes.
6281 *) <openssl/opensslconf.h> (which is created by Configure) now contains
6282 sections with information on -D... compiler switches used for
6283 compiling the library so that applications can see them. To enable
6284 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
6285 must be defined. E.g.,
6286 #define OPENSSL_ALGORITHM_DEFINES
6287 #include <openssl/opensslconf.h>
6288 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
6289 [Richard Levitte, Ulf and Bodo Möller]
6291 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
6295 *) Change the 'other' type in certificate aux info to a STACK_OF
6296 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
6297 the required ASN1 format: arbitrary types determined by an OID.
6300 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
6301 argument to 'req'. This is not because the function is newer or
6302 better than others it just uses the work 'NEW' in the certificate
6303 request header lines. Some software needs this.
6306 *) Reorganise password command line arguments: now passwords can be
6307 obtained from various sources. Delete the PEM_cb function and make
6308 it the default behaviour: i.e. if the callback is NULL and the
6309 usrdata argument is not NULL interpret it as a null terminated pass
6310 phrase. If usrdata and the callback are NULL then the pass phrase
6311 is prompted for as usual.
6314 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
6315 the support is automatically enabled. The resulting binaries will
6316 autodetect the card and use it if present.
6317 [Ben Laurie and Compaq Inc.]
6319 *) Work around for Netscape hang bug. This sends certificate request
6320 and server done in one record. Since this is perfectly legal in the
6321 SSL/TLS protocol it isn't a "bug" option and is on by default. See
6322 the bugs/SSLv3 entry for more info.
6325 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
6328 *) Add -rand argument to smime and pkcs12 applications and read/write
6332 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
6335 *) Add command line password options to the remaining applications.
6338 *) Bug fix for BN_div_recp() for numerators with an even number of
6342 *) More tests in bntest.c, and changed test_bn output.
6345 *) ./config recognizes MacOS X now.
6348 *) Bug fix for BN_div() when the first words of num and divsor are
6349 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
6352 *) Add support for various broken PKCS#8 formats, and command line
6353 options to produce them.
6356 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
6357 get temporary BIGNUMs from a BN_CTX.
6360 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
6364 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
6365 include a #define from the old name to the new. The original intent
6366 was that statically linked binaries could for example just call
6367 SSLeay_add_all_ciphers() to just add ciphers to the table and not
6368 link with digests. This never worked becayse SSLeay_add_all_digests()
6369 and SSLeay_add_all_ciphers() were in the same source file so calling
6370 one would link with the other. They are now in separate source files.
6373 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
6376 *) Use a less unusual form of the Miller-Rabin primality test (it used
6377 a binary algorithm for exponentiation integrated into the Miller-Rabin
6378 loop, our standard modexp algorithms are faster).
6381 *) Support for the EBCDIC character set completed.
6382 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
6384 *) Source code cleanups: use const where appropriate, eliminate casts,
6385 use void * instead of char * in lhash.
6388 *) Bugfix: ssl3_send_server_key_exchange was not restartable
6389 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
6390 this the server could overwrite ephemeral keys that the client
6394 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
6395 using 50 iterations of the Rabin-Miller test.
6397 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
6398 iterations of the Rabin-Miller test as required by the appendix
6399 to FIPS PUB 186[-1]) instead of DSA_is_prime.
6400 As BN_is_prime_fasttest includes trial division, DSA parameter
6401 generation becomes much faster.
6403 This implies a change for the callback functions in DSA_is_prime
6404 and DSA_generate_parameters: The callback function is called once
6405 for each positive witness in the Rabin-Miller test, not just
6406 occasionally in the inner loop; and the parameters to the
6407 callback function now provide an iteration count for the outer
6408 loop rather than for the current invocation of the inner loop.
6409 DSA_generate_parameters additionally can call the callback
6410 function with an 'iteration count' of -1, meaning that a
6411 candidate has passed the trial division test (when q is generated
6412 from an application-provided seed, trial division is skipped).
6415 *) New function BN_is_prime_fasttest that optionally does trial
6416 division before starting the Rabin-Miller test and has
6417 an additional BN_CTX * argument (whereas BN_is_prime always
6418 has to allocate at least one BN_CTX).
6419 'callback(1, -1, cb_arg)' is called when a number has passed the
6420 trial division stage.
6423 *) Fix for bug in CRL encoding. The validity dates weren't being handled
6427 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
6430 *) New function BN_pseudo_rand().
6433 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
6434 bignum version of BN_from_montgomery() with the working code from
6435 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
6439 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
6440 made it impossible to use the same SSL_SESSION data structure in
6441 SSL2 clients in multiple threads.
6444 *) The return value of RAND_load_file() no longer counts bytes obtained
6445 by stat(). RAND_load_file(..., -1) is new and uses the complete file
6446 to seed the PRNG (previously an explicit byte count was required).
6447 [Ulf Möller, Bodo Möller]
6449 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
6450 used (char *) instead of (void *) and had casts all over the place.
6453 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
6456 *) Retain source code compatibility for BN_prime_checks macro:
6457 BN_is_prime(..., BN_prime_checks, ...) now uses
6458 BN_prime_checks_for_size to determine the appropriate number of
6459 Rabin-Miller iterations.
6462 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
6463 DH_CHECK_P_NOT_SAFE_PRIME.
6464 (Check if this is true? OpenPGP calls them "strong".)
6467 *) Merge the functionality of "dh" and "gendh" programs into a new program
6468 "dhparam". The old programs are retained for now but will handle DH keys
6469 (instead of parameters) in future.
6472 *) Make the ciphers, s_server and s_client programs check the return values
6473 when a new cipher list is set.
6476 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
6477 ciphers. Before when the 56bit ciphers were enabled the sorting was
6480 The syntax for the cipher sorting has been extended to support sorting by
6481 cipher-strength (using the strength_bits hard coded in the tables).
6482 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
6484 Fix a bug in the cipher-command parser: when supplying a cipher command
6485 string with an "undefined" symbol (neither command nor alphanumeric
6486 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
6487 an error is flagged.
6489 Due to the strength-sorting extension, the code of the
6490 ssl_create_cipher_list() function was completely rearranged. I hope that
6491 the readability was also increased :-)
6492 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6494 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
6495 for the first serial number and places 2 in the serial number file. This
6496 avoids problems when the root CA is created with serial number zero and
6497 the first user certificate has the same issuer name and serial number
6501 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
6502 the new code. Add documentation for this stuff.
6505 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
6506 X509_*() to X509at_*() on the grounds that they don't handle X509
6507 structures and behave in an analagous way to the X509v3 functions:
6508 they shouldn't be called directly but wrapper functions should be used
6511 So we also now have some wrapper functions that call the X509at functions
6512 when passed certificate requests. (TO DO: similar things can be done with
6513 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
6514 things. Some of these need some d2i or i2d and print functionality
6515 because they handle more complex structures.)
6518 *) Add missing #ifndefs that caused missing symbols when building libssl
6519 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
6520 NO_RSA in ssl/s2*.c.
6521 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
6523 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
6524 has a return value which indicates the quality of the random data
6525 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
6526 error queue. New function RAND_pseudo_bytes() generates output that is
6527 guaranteed to be unique but not unpredictable. RAND_add is like
6528 RAND_seed, but takes an extra argument for an entropy estimate
6529 (RAND_seed always assumes full entropy).
6532 *) Do more iterations of Rabin-Miller probable prime test (specifically,
6533 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
6534 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
6535 in crypto/bn/bn_prime.c for the complete table). This guarantees a
6536 false-positive rate of at most 2^-80 for random input.
6539 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
6542 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
6543 in the 0.9.5 release), this returns the chain
6544 from an X509_CTX structure with a dup of the stack and all
6545 the X509 reference counts upped: so the stack will exist
6546 after X509_CTX_cleanup() has been called. Modify pkcs12.c
6549 Also make SSL_SESSION_print() print out the verify return
6553 *) Add manpage for the pkcs12 command. Also change the default
6554 behaviour so MAC iteration counts are used unless the new
6555 -nomaciter option is used. This improves file security and
6556 only older versions of MSIE (4.0 for example) need it.
6559 *) Honor the no-xxx Configure options when creating .DEF files.
6562 *) Add PKCS#10 attributes to field table: challengePassword,
6563 unstructuredName and unstructuredAddress. These are taken from
6564 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
6565 international characters are used.
6567 More changes to X509_ATTRIBUTE code: allow the setting of types
6568 based on strings. Remove the 'loc' parameter when adding
6569 attributes because these will be a SET OF encoding which is sorted
6573 *) Initial changes to the 'req' utility to allow request generation
6574 automation. This will allow an application to just generate a template
6575 file containing all the field values and have req construct the
6578 Initial support for X509_ATTRIBUTE handling. Stacks of these are
6579 used all over the place including certificate requests and PKCS#7
6580 structures. They are currently handled manually where necessary with
6581 some primitive wrappers for PKCS#7. The new functions behave in a
6582 manner analogous to the X509 extension functions: they allow
6583 attributes to be looked up by NID and added.
6585 Later something similar to the X509V3 code would be desirable to
6586 automatically handle the encoding, decoding and printing of the
6587 more complex types. The string types like challengePassword can
6588 be handled by the string table functions.
6590 Also modified the multi byte string table handling. Now there is
6591 a 'global mask' which masks out certain types. The table itself
6592 can use the flag STABLE_NO_MASK to ignore the mask setting: this
6593 is useful when for example there is only one permissible type
6594 (as in countryName) and using the mask might result in no valid
6598 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
6599 SSL_get_peer_finished to allow applications to obtain the latest
6600 Finished messages sent to the peer or expected from the peer,
6601 respectively. (SSL_get_peer_finished is usually the Finished message
6602 actually received from the peer, otherwise the protocol will be aborted.)
6604 As the Finished message are message digests of the complete handshake
6605 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
6606 be used for external authentication procedures when the authentication
6607 provided by SSL/TLS is not desired or is not enough.
6610 *) Enhanced support for Alpha Linux is added. Now ./config checks if
6611 the host supports BWX extension and if Compaq C is present on the
6612 $PATH. Just exploiting of the BWX extension results in 20-30%
6613 performance kick for some algorithms, e.g. DES and RC4 to mention
6614 a couple. Compaq C in turn generates ~20% faster code for MD5 and
6618 *) Add support for MS "fast SGC". This is arguably a violation of the
6619 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
6620 weak crypto and after checking the certificate is SGC a second one
6621 with strong crypto. MS SGC stops the first handshake after receiving
6622 the server certificate message and sends a second client hello. Since
6623 a server will typically do all the time consuming operations before
6624 expecting any further messages from the client (server key exchange
6625 is the most expensive) there is little difference between the two.
6627 To get OpenSSL to support MS SGC we have to permit a second client
6628 hello message after we have sent server done. In addition we have to
6629 reset the MAC if we do get this second client hello.
6632 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
6633 if a DER encoded private key is RSA or DSA traditional format. Changed
6634 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
6635 format DER encoded private key. Newer code should use PKCS#8 format which
6636 has the key type encoded in the ASN1 structure. Added DER private key
6637 support to pkcs8 application.
6640 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
6641 ciphersuites has been selected (as required by the SSL 3/TLS 1
6642 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
6643 is set, we interpret this as a request to violate the specification
6644 (the worst that can happen is a handshake failure, and 'correct'
6645 behaviour would result in a handshake failure anyway).
6648 *) In SSL_CTX_add_session, take into account that there might be multiple
6649 SSL_SESSION structures with the same session ID (e.g. when two threads
6650 concurrently obtain them from an external cache).
6651 The internal cache can handle only one SSL_SESSION with a given ID,
6652 so if there's a conflict, we now throw out the old one to achieve
6656 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
6657 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
6658 some routines that use cipher OIDs: some ciphers do not have OIDs
6659 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
6663 *) Simplify the trust setting structure and code. Now we just have
6664 two sequences of OIDs for trusted and rejected settings. These will
6665 typically have values the same as the extended key usage extension
6666 and any application specific purposes.
6668 The trust checking code now has a default behaviour: it will just
6669 check for an object with the same NID as the passed id. Functions can
6670 be provided to override either the default behaviour or the behaviour
6671 for a given id. SSL client, server and email already have functions
6672 in place for compatibility: they check the NID and also return "trusted"
6673 if the certificate is self signed.
6676 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
6677 traditional format into an EVP_PKEY structure.
6680 *) Add a password callback function PEM_cb() which either prompts for
6681 a password if usr_data is NULL or otherwise assumes it is a null
6682 terminated password. Allow passwords to be passed on command line
6683 environment or config files in a few more utilities.
6686 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
6687 keys. Add some short names for PKCS#8 PBE algorithms and allow them
6688 to be specified on the command line for the pkcs8 and pkcs12 utilities.
6689 Update documentation.
6692 *) Support for ASN1 "NULL" type. This could be handled before by using
6693 ASN1_TYPE but there wasn't any function that would try to read a NULL
6694 and produce an error if it couldn't. For compatibility we also have
6695 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
6696 don't allocate anything because they don't need to.
6699 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
6701 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
6703 *) Rebuild of the memory allocation routines used by OpenSSL code and
6704 possibly others as well. The purpose is to make an interface that
6705 provide hooks so anyone can build a separate set of allocation and
6706 deallocation routines to be used by OpenSSL, for example memory
6707 pool implementations, or something else, which was previously hard
6708 since Malloc(), Realloc() and Free() were defined as macros having
6709 the values malloc, realloc and free, respectively (except for Win32
6710 compilations). The same is provided for memory debugging code.
6711 OpenSSL already comes with functionality to find memory leaks, but
6712 this gives people a chance to debug other memory problems.
6714 With these changes, a new set of functions and macros have appeared:
6716 CRYPTO_set_mem_debug_functions() [F]
6717 CRYPTO_get_mem_debug_functions() [F]
6718 CRYPTO_dbg_set_options() [F]
6719 CRYPTO_dbg_get_options() [F]
6720 CRYPTO_malloc_debug_init() [M]
6722 The memory debug functions are NULL by default, unless the library
6723 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
6724 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
6725 gives the standard debugging functions that come with OpenSSL) or
6726 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
6727 provided by the library user) must be used. When the standard
6728 debugging functions are used, CRYPTO_dbg_set_options can be used to
6729 request additional information:
6730 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
6731 the CRYPTO_MDEBUG_xxx macro when compiling the library.
6733 Also, things like CRYPTO_set_mem_functions will always give the
6734 expected result (the new set of functions is used for allocation
6735 and deallocation) at all times, regardless of platform and compiler
6738 To finish it up, some functions that were never use in any other
6739 way than through macros have a new API and new semantic:
6742 CRYPTO_dbg_realloc()
6745 All macros of value have retained their old syntax.
6746 [Richard Levitte and Bodo Moeller]
6748 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
6749 ordering of SMIMECapabilities wasn't in "strength order" and there
6750 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
6754 *) Some ASN1 types with illegal zero length encoding (INTEGER,
6755 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
6756 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
6758 *) Merge in my S/MIME library for OpenSSL. This provides a simple
6759 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
6760 functionality to handle multipart/signed properly) and a utility
6761 called 'smime' to call all this stuff. This is based on code I
6762 originally wrote for Celo who have kindly allowed it to be
6763 included in OpenSSL.
6766 *) Add variants des_set_key_checked and des_set_key_unchecked of
6767 des_set_key (aka des_key_sched). Global variable des_check_key
6768 decides which of these is called by des_set_key; this way
6769 des_check_key behaves as it always did, but applications and
6770 the library itself, which was buggy for des_check_key == 1,
6771 have a cleaner way to pick the version they need.
6774 *) New function PKCS12_newpass() which changes the password of a
6778 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
6779 dynamic mix. In both cases the ids can be used as an index into the
6780 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
6781 functions so they accept a list of the field values and the
6782 application doesn't need to directly manipulate the X509_TRUST
6786 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
6790 *) Modify the way the V3 extension code looks up extensions. This now
6791 works in a similar way to the object code: we have some "standard"
6792 extensions in a static table which is searched with OBJ_bsearch()
6793 and the application can add dynamic ones if needed. The file
6794 crypto/x509v3/ext_dat.h now has the info: this file needs to be
6795 updated whenever a new extension is added to the core code and kept
6796 in ext_nid order. There is a simple program 'tabtest.c' which checks
6797 this. New extensions are not added too often so this file can readily
6798 be maintained manually.
6800 There are two big advantages in doing things this way. The extensions
6801 can be looked up immediately and no longer need to be "added" using
6802 X509V3_add_standard_extensions(): this function now does nothing.
6803 [Side note: I get *lots* of email saying the extension code doesn't
6804 work because people forget to call this function]
6805 Also no dynamic allocation is done unless new extensions are added:
6806 so if we don't add custom extensions there is no need to call
6807 X509V3_EXT_cleanup().
6810 *) Modify enc utility's salting as follows: make salting the default. Add a
6811 magic header, so unsalted files fail gracefully instead of just decrypting
6812 to garbage. This is because not salting is a big security hole, so people
6813 should be discouraged from doing it.
6816 *) Fixes and enhancements to the 'x509' utility. It allowed a message
6817 digest to be passed on the command line but it only used this
6818 parameter when signing a certificate. Modified so all relevant
6819 operations are affected by the digest parameter including the
6820 -fingerprint and -x509toreq options. Also -x509toreq choked if a
6821 DSA key was used because it didn't fix the digest.
6824 *) Initial certificate chain verify code. Currently tests the untrusted
6825 certificates for consistency with the verify purpose (which is set
6826 when the X509_STORE_CTX structure is set up) and checks the pathlength.
6828 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
6829 this is because it will reject chains with invalid extensions whereas
6830 every previous version of OpenSSL and SSLeay made no checks at all.
6832 Trust code: checks the root CA for the relevant trust settings. Trust
6833 settings have an initial value consistent with the verify purpose: e.g.
6834 if the verify purpose is for SSL client use it expects the CA to be
6835 trusted for SSL client use. However the default value can be changed to
6836 permit custom trust settings: one example of this would be to only trust
6837 certificates from a specific "secure" set of CAs.
6839 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
6840 which should be used for version portability: especially since the
6841 verify structure is likely to change more often now.
6843 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
6844 to set them. If not set then assume SSL clients will verify SSL servers
6847 Two new options to the verify program: -untrusted allows a set of
6848 untrusted certificates to be passed in and -purpose which sets the
6849 intended purpose of the certificate. If a purpose is set then the
6850 new chain verify code is used to check extension consistency.
6853 *) Support for the authority information access extension.
6856 *) Modify RSA and DSA PEM read routines to transparently handle
6857 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
6858 public keys in a format compatible with certificate
6859 SubjectPublicKeyInfo structures. Unfortunately there were already
6860 functions called *_PublicKey_* which used various odd formats so
6861 these are retained for compatibility: however the DSA variants were
6862 never in a public release so they have been deleted. Changed dsa/rsa
6863 utilities to handle the new format: note no releases ever handled public
6864 keys so we should be OK.
6866 The primary motivation for this change is to avoid the same fiasco
6867 that dogs private keys: there are several incompatible private key
6868 formats some of which are standard and some OpenSSL specific and
6869 require various evil hacks to allow partial transparent handling and
6870 even then it doesn't work with DER formats. Given the option anything
6871 other than PKCS#8 should be dumped: but the other formats have to
6872 stay in the name of compatibility.
6874 With public keys and the benefit of hindsight one standard format
6875 is used which works with EVP_PKEY, RSA or DSA structures: though
6876 it clearly returns an error if you try to read the wrong kind of key.
6878 Added a -pubkey option to the 'x509' utility to output the public key.
6879 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
6880 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
6881 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
6882 that do the same as the EVP_PKEY_assign_*() except they up the
6883 reference count of the added key (they don't "swallow" the
6887 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
6888 CRLs would fail if the file contained no certificates or no CRLs:
6889 added a new function to read in both types and return the number
6890 read: this means that if none are read it will be an error. The
6891 DER versions of the certificate and CRL reader would always fail
6892 because it isn't possible to mix certificates and CRLs in DER format
6893 without choking one or the other routine. Changed this to just read
6894 a certificate: this is the best we can do. Also modified the code
6895 in apps/verify.c to take notice of return codes: it was previously
6896 attempting to read in certificates from NULL pointers and ignoring
6897 any errors: this is one reason why the cert and CRL reader seemed
6898 to work. It doesn't check return codes from the default certificate
6899 routines: these may well fail if the certificates aren't installed.
6902 *) Code to support otherName option in GeneralName.
6905 *) First update to verify code. Change the verify utility
6906 so it warns if it is passed a self signed certificate:
6907 for consistency with the normal behaviour. X509_verify
6908 has been modified to it will now verify a self signed
6909 certificate if *exactly* the same certificate appears
6910 in the store: it was previously impossible to trust a
6911 single self signed certificate. This means that:
6912 openssl verify ss.pem
6913 now gives a warning about a self signed certificate but
6914 openssl verify -CAfile ss.pem ss.pem
6918 *) For servers, store verify_result in SSL_SESSION data structure
6919 (and add it to external session representation).
6920 This is needed when client certificate verifications fails,
6921 but an application-provided verification callback (set by
6922 SSL_CTX_set_cert_verify_callback) allows accepting the session
6923 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
6924 but returns 1): When the session is reused, we have to set
6925 ssl->verify_result to the appropriate error code to avoid
6927 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
6929 *) Fix a bug in the new PKCS#7 code: it didn't consider the
6930 case in PKCS7_dataInit() where the signed PKCS7 structure
6931 didn't contain any existing data because it was being created.
6932 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
6934 *) Add a salt to the key derivation routines in enc.c. This
6935 forms the first 8 bytes of the encrypted file. Also add a
6936 -S option to allow a salt to be input on the command line.
6939 *) New function X509_cmp(). Oddly enough there wasn't a function
6940 to compare two certificates. We do this by working out the SHA1
6941 hash and comparing that. X509_cmp() will be needed by the trust
6945 *) SSL_get1_session() is like SSL_get_session(), but increments
6946 the reference count in the SSL_SESSION returned.
6947 [Geoff Thorpe <geoff@eu.c2.net>]
6949 *) Fix for 'req': it was adding a null to request attributes.
6950 Also change the X509_LOOKUP and X509_INFO code to handle
6951 certificate auxiliary information.
6954 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
6958 *) Add the possibility to add extra information to the memory leak
6959 detecting output, to form tracebacks, showing from where each
6960 allocation was originated: CRYPTO_push_info("constant string") adds
6961 the string plus current file name and line number to a per-thread
6962 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
6963 is like calling CYRPTO_pop_info() until the stack is empty.
6964 Also updated memory leak detection code to be multi-thread-safe.
6967 *) Add options -text and -noout to pkcs7 utility and delete the
6968 encryption options which never did anything. Update docs.
6971 *) Add options to some of the utilities to allow the pass phrase
6972 to be included on either the command line (not recommended on
6973 OSes like Unix) or read from the environment. Update the
6974 manpages and fix a few bugs.
6977 *) Add a few manpages for some of the openssl commands.
6980 *) Fix the -revoke option in ca. It was freeing up memory twice,
6981 leaking and not finding already revoked certificates.
6984 *) Extensive changes to support certificate auxiliary information.
6985 This involves the use of X509_CERT_AUX structure and X509_AUX
6986 functions. An X509_AUX function such as PEM_read_X509_AUX()
6987 can still read in a certificate file in the usual way but it
6988 will also read in any additional "auxiliary information". By
6989 doing things this way a fair degree of compatibility can be
6990 retained: existing certificates can have this information added
6991 using the new 'x509' options.
6993 Current auxiliary information includes an "alias" and some trust
6994 settings. The trust settings will ultimately be used in enhanced
6995 certificate chain verification routines: currently a certificate
6996 can only be trusted if it is self signed and then it is trusted
7000 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
7001 The problem was that one of the replacement routines had not been working
7002 since SSLeay releases. For now the offending routine has been replaced
7003 with non-optimised assembler. Even so, this now gives around 95%
7004 performance improvement for 1024 bit RSA signs.
7007 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
7008 handling. Most clients have the effective key size in bits equal to
7009 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
7010 A few however don't do this and instead use the size of the decrypted key
7011 to determine the RC2 key length and the AlgorithmIdentifier to determine
7012 the effective key length. In this case the effective key length can still
7013 be 40 bits but the key length can be 168 bits for example. This is fixed
7014 by manually forcing an RC2 key into the EVP_PKEY structure because the
7015 EVP code can't currently handle unusual RC2 key sizes: it always assumes
7016 the key length and effective key length are equal.
7019 *) Add a bunch of functions that should simplify the creation of
7020 X509_NAME structures. Now you should be able to do:
7021 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
7022 and have it automatically work out the correct field type and fill in
7023 the structures. The more adventurous can try:
7024 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
7025 and it will (hopefully) work out the correct multibyte encoding.
7028 *) Change the 'req' utility to use the new field handling and multibyte
7029 copy routines. Before the DN field creation was handled in an ad hoc
7030 way in req, ca, and x509 which was rather broken and didn't support
7031 BMPStrings or UTF8Strings. Since some software doesn't implement
7032 BMPStrings or UTF8Strings yet, they can be enabled using the config file
7033 using the dirstring_type option. See the new comment in the default
7034 openssl.cnf for more info.
7037 *) Make crypto/rand/md_rand.c more robust:
7038 - Assure unique random numbers after fork().
7039 - Make sure that concurrent threads access the global counter and
7040 md serializably so that we never lose entropy in them
7041 or use exactly the same state in multiple threads.
7042 Access to the large state is not always serializable because
7043 the additional locking could be a performance killer, and
7044 md should be large enough anyway.
7047 *) New file apps/app_rand.c with commonly needed functionality
7048 for handling the random seed file.
7050 Use the random seed file in some applications that previously did not:
7052 dsaparam -genkey (which also ignored its '-rand' option),
7055 x509 (when signing).
7056 Except on systems with /dev/urandom, it is crucial to have a random
7057 seed file at least for key creation, DSA signing, and for DH exchanges;
7058 for RSA signatures we could do without one.
7060 gendh and gendsa (unlike genrsa) used to read only the first byte
7061 of each file listed in the '-rand' option. The function as previously
7062 found in genrsa is now in app_rand.c and is used by all programs
7063 that support '-rand'.
7066 *) In RAND_write_file, use mode 0600 for creating files;
7067 don't just chmod when it may be too late.
7070 *) Report an error from X509_STORE_load_locations
7071 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
7074 *) New function ASN1_mbstring_copy() this copies a string in either
7075 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
7076 into an ASN1_STRING type. A mask of permissible types is passed
7077 and it chooses the "minimal" type to use or an error if not type
7081 *) Add function equivalents to the various macros in asn1.h. The old
7082 macros are retained with an M_ prefix. Code inside the library can
7083 use the M_ macros. External code (including the openssl utility)
7084 should *NOT* in order to be "shared library friendly".
7087 *) Add various functions that can check a certificate's extensions
7088 to see if it usable for various purposes such as SSL client,
7089 server or S/MIME and CAs of these types. This is currently
7090 VERY EXPERIMENTAL but will ultimately be used for certificate chain
7091 verification. Also added a -purpose flag to x509 utility to
7092 print out all the purposes.
7095 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
7099 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
7100 for, obtain and decode and extension and obtain its critical flag.
7101 This allows all the necessary extension code to be handled in a
7102 single function call.
7105 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
7106 platforms. See crypto/rc4/rc4_enc.c for further details.
7109 *) New -noout option to asn1parse. This causes no output to be produced
7110 its main use is when combined with -strparse and -out to extract data
7111 from a file (which may not be in ASN.1 format).
7114 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
7115 when producing the local key id.
7116 [Richard Levitte <levitte@stacken.kth.se>]
7118 *) New option -dhparam in s_server. This allows a DH parameter file to be
7119 stated explicitly. If it is not stated then it tries the first server
7120 certificate file. The previous behaviour hard coded the filename
7124 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
7125 a public key to be input or output. For example:
7126 openssl rsa -in key.pem -pubout -out pubkey.pem
7127 Also added necessary DSA public key functions to handle this.
7130 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
7131 in the message. This was handled by allowing
7132 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
7133 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
7135 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
7136 to the end of the strings whereas this didn't. This would cause problems
7137 if strings read with d2i_ASN1_bytes() were later modified.
7138 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
7140 *) Fix for base64 decode bug. When a base64 bio reads only one line of
7141 data and it contains EOF it will end up returning an error. This is
7142 caused by input 46 bytes long. The cause is due to the way base64
7143 BIOs find the start of base64 encoded data. They do this by trying a
7144 trial decode on each line until they find one that works. When they
7145 do a flag is set and it starts again knowing it can pass all the
7146 data directly through the decoder. Unfortunately it doesn't reset
7147 the context it uses. This means that if EOF is reached an attempt
7148 is made to pass two EOFs through the context and this causes the
7149 resulting error. This can also cause other problems as well. As is
7150 usual with these problems it takes *ages* to find and the fix is
7151 trivial: move one line.
7152 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
7154 *) Ugly workaround to get s_client and s_server working under Windows. The
7155 old code wouldn't work because it needed to select() on sockets and the
7156 tty (for keypresses and to see if data could be written). Win32 only
7157 supports select() on sockets so we select() with a 1s timeout on the
7158 sockets and then see if any characters are waiting to be read, if none
7159 are present then we retry, we also assume we can always write data to
7160 the tty. This isn't nice because the code then blocks until we've
7161 received a complete line of data and it is effectively polling the
7162 keyboard at 1s intervals: however it's quite a bit better than not
7163 working at all :-) A dedicated Windows application might handle this
7164 with an event loop for example.
7167 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
7168 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
7169 will be called when RSA_sign() and RSA_verify() are used. This is useful
7170 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
7171 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
7172 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
7173 This necessitated the support of an extra signature type NID_md5_sha1
7174 for SSL signatures and modifications to the SSL library to use it instead
7175 of calling RSA_public_decrypt() and RSA_private_encrypt().
7178 *) Add new -verify -CAfile and -CApath options to the crl program, these
7179 will lookup a CRL issuers certificate and verify the signature in a
7180 similar way to the verify program. Tidy up the crl program so it
7181 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
7182 less strict. It will now permit CRL extensions even if it is not
7183 a V2 CRL: this will allow it to tolerate some broken CRLs.
7186 *) Initialize all non-automatic variables each time one of the openssl
7187 sub-programs is started (this is necessary as they may be started
7188 multiple times from the "OpenSSL>" prompt).
7189 [Lennart Bang, Bodo Moeller]
7191 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
7192 removing all other RSA functionality (this is what NO_RSA does). This
7193 is so (for example) those in the US can disable those operations covered
7194 by the RSA patent while allowing storage and parsing of RSA keys and RSA
7198 *) Non-copying interface to BIO pairs.
7199 (still largely untested)
7202 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
7203 ASCII string. This was handled independently in various places before.
7206 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
7207 UTF8 strings a character at a time.
7210 *) Use client_version from client hello to select the protocol
7211 (s23_srvr.c) and for RSA client key exchange verification
7212 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
7215 *) Add various utility functions to handle SPKACs, these were previously
7216 handled by poking round in the structure internals. Added new function
7217 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
7218 print, verify and generate SPKACs. Based on an original idea from
7219 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
7222 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
7225 *) Allow the config file extension section to be overwritten on the
7226 command line. Based on an original idea from Massimiliano Pala
7227 <madwolf@comune.modena.it>. The new option is called -extensions
7228 and can be applied to ca, req and x509. Also -reqexts to override
7229 the request extensions in req and -crlexts to override the crl extensions
7233 *) Add new feature to the SPKAC handling in ca. Now you can include
7234 the same field multiple times by preceding it by "XXXX." for example:
7237 this is the same syntax as used in the req config file.
7240 *) Allow certificate extensions to be added to certificate requests. These
7241 are specified in a 'req_extensions' option of the req section of the
7242 config file. They can be printed out with the -text option to req but
7243 are otherwise ignored at present.
7246 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
7247 data read consists of only the final block it would not decrypted because
7248 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
7249 A misplaced 'break' also meant the decrypted final block might not be
7250 copied until the next read.
7253 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
7254 a few extra parameters to the DH structure: these will be useful if
7255 for example we want the value of 'q' or implement X9.42 DH.
7258 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
7259 provides hooks that allow the default DSA functions or functions on a
7260 "per key" basis to be replaced. This allows hardware acceleration and
7261 hardware key storage to be handled without major modification to the
7262 library. Also added low level modexp hooks and CRYPTO_EX structure and
7263 associated functions.
7266 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
7267 as "read only": it can't be written to and the buffer it points to will
7268 not be freed. Reading from a read only BIO is much more efficient than
7269 a normal memory BIO. This was added because there are several times when
7270 an area of memory needs to be read from a BIO. The previous method was
7271 to create a memory BIO and write the data to it, this results in two
7272 copies of the data and an O(n^2) reading algorithm. There is a new
7273 function BIO_new_mem_buf() which creates a read only memory BIO from
7274 an area of memory. Also modified the PKCS#7 routines to use read only
7278 *) Bugfix: ssl23_get_client_hello did not work properly when called in
7279 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
7280 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
7281 but a retry condition occured while trying to read the rest.
7284 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
7285 NID_pkcs7_encrypted by default: this was wrong since this should almost
7286 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
7287 the encrypted data type: this is a more sensible place to put it and it
7288 allows the PKCS#12 code to be tidied up that duplicated this
7292 *) Changed obj_dat.pl script so it takes its input and output files on
7293 the command line. This should avoid shell escape redirection problems
7297 *) Initial support for certificate extension requests, these are included
7298 in things like Xenroll certificate requests. Included functions to allow
7299 extensions to be obtained and added.
7302 *) -crlf option to s_client and s_server for sending newlines as
7303 CRLF (as required by many protocols).
7306 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
7308 *) Install libRSAglue.a when OpenSSL is built with RSAref.
7309 [Ralf S. Engelschall]
7311 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
7312 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
7314 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
7318 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
7319 DH parameters/keys (q is lost during that conversion, but the resulting
7320 DH parameters contain its length).
7322 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
7323 much faster than DH_generate_parameters (which creates parameters
7324 where p = 2*q + 1), and also the smaller q makes DH computations
7325 much more efficient (160-bit exponentiation instead of 1024-bit
7326 exponentiation); so this provides a convenient way to support DHE
7327 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
7328 utter importance to use
7329 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7331 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7332 when such DH parameters are used, because otherwise small subgroup
7333 attacks may become possible!
7336 *) Avoid memory leak in i2d_DHparams.
7339 *) Allow the -k option to be used more than once in the enc program:
7340 this allows the same encrypted message to be read by multiple recipients.
7343 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
7344 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
7345 it will always use the numerical form of the OID, even if it has a short
7349 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
7350 method only got called if p,q,dmp1,dmq1,iqmp components were present,
7351 otherwise bn_mod_exp was called. In the case of hardware keys for example
7352 no private key components need be present and it might store extra data
7353 in the RSA structure, which cannot be accessed from bn_mod_exp.
7354 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
7355 private key operations.
7358 *) Added support for SPARC Linux.
7361 *) pem_password_cb function type incompatibly changed from
7362 typedef int pem_password_cb(char *buf, int size, int rwflag);
7364 ....(char *buf, int size, int rwflag, void *userdata);
7365 so that applications can pass data to their callbacks:
7366 The PEM[_ASN1]_{read,write}... functions and macros now take an
7367 additional void * argument, which is just handed through whenever
7368 the password callback is called.
7369 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
7371 New function SSL_CTX_set_default_passwd_cb_userdata.
7373 Compatibility note: As many C implementations push function arguments
7374 onto the stack in reverse order, the new library version is likely to
7375 interoperate with programs that have been compiled with the old
7376 pem_password_cb definition (PEM_whatever takes some data that
7377 happens to be on the stack as its last argument, and the callback
7378 just ignores this garbage); but there is no guarantee whatsoever that
7381 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
7382 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
7383 problems not only on Windows, but also on some Unix platforms.
7384 To avoid problematic command lines, these definitions are now in an
7385 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
7386 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
7389 *) MIPS III/IV assembler module is reimplemented.
7392 *) More DES library cleanups: remove references to srand/rand and
7393 delete an unused file.
7396 *) Add support for the the free Netwide assembler (NASM) under Win32,
7397 since not many people have MASM (ml) and it can be hard to obtain.
7398 This is currently experimental but it seems to work OK and pass all
7399 the tests. Check out INSTALL.W32 for info.
7402 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
7403 without temporary keys kept an extra copy of the server key,
7404 and connections with temporary keys did not free everything in case
7408 *) New function RSA_check_key and new openssl rsa option -check
7409 for verifying the consistency of RSA keys.
7410 [Ulf Moeller, Bodo Moeller]
7412 *) Various changes to make Win32 compile work:
7413 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
7414 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
7415 comparison" warnings.
7416 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
7419 *) Add a debugging option to PKCS#5 v2 key generation function: when
7420 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
7421 derived keys are printed to stderr.
7424 *) Copy the flags in ASN1_STRING_dup().
7425 [Roman E. Pavlov <pre@mo.msk.ru>]
7427 *) The x509 application mishandled signing requests containing DSA
7428 keys when the signing key was also DSA and the parameters didn't match.
7430 It was supposed to omit the parameters when they matched the signing key:
7431 the verifying software was then supposed to automatically use the CA's
7432 parameters if they were absent from the end user certificate.
7434 Omitting parameters is no longer recommended. The test was also
7435 the wrong way round! This was probably due to unusual behaviour in
7436 EVP_cmp_parameters() which returns 1 if the parameters match.
7437 This meant that parameters were omitted when they *didn't* match and
7438 the certificate was useless. Certificates signed with 'ca' didn't have
7440 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
7442 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
7443 The interface is as follows:
7444 Applications can use
7445 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
7446 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
7447 "off" is now the default.
7448 The library internally uses
7449 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
7450 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
7451 to disable memory-checking temporarily.
7453 Some inconsistent states that previously were possible (and were
7454 even the default) are now avoided.
7456 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
7457 with each memory chunk allocated; this is occasionally more helpful
7458 than just having a counter.
7460 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
7462 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
7466 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
7467 which largely parallels "options", but is for changing API behaviour,
7468 whereas "options" are about protocol behaviour.
7469 Initial "mode" flags are:
7471 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
7472 a single record has been written.
7473 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
7474 retries use the same buffer location.
7475 (But all of the contents must be
7479 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
7482 *) Fix problems with no-hmac etc.
7483 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
7485 *) New functions RSA_get_default_method(), RSA_set_method() and
7486 RSA_get_method(). These allows replacement of RSA_METHODs without having
7487 to mess around with the internals of an RSA structure.
7490 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
7491 Also really enable memory leak checks in openssl.c and in some
7493 [Chad C. Mulligan, Bodo Moeller]
7495 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
7496 up the length of negative integers. This has now been simplified to just
7497 store the length when it is first determined and use it later, rather
7498 than trying to keep track of where data is copied and updating it to
7500 [Steve Henson, reported by Brien Wheeler
7501 <bwheeler@authentica-security.com>]
7503 *) Add a new function PKCS7_signatureVerify. This allows the verification
7504 of a PKCS#7 signature but with the signing certificate passed to the
7505 function itself. This contrasts with PKCS7_dataVerify which assumes the
7506 certificate is present in the PKCS#7 structure. This isn't always the
7507 case: certificates can be omitted from a PKCS#7 structure and be
7508 distributed by "out of band" means (such as a certificate database).
7511 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
7512 function prototypes in pem.h, also change util/mkdef.pl to add the
7513 necessary function names.
7516 *) mk1mf.pl (used by Windows builds) did not properly read the
7517 options set by Configure in the top level Makefile, and Configure
7518 was not even able to write more than one option correctly.
7519 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
7522 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
7523 file to be loaded from a BIO or FILE pointer. The BIO version will
7524 for example allow memory BIOs to contain config info.
7527 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
7528 Whoever hopes to achieve shared-library compatibility across versions
7529 must use this, not the compile-time macro.
7530 (Exercise 0.9.4: Which is the minimum library version required by
7532 Note: All this applies only to multi-threaded programs, others don't
7536 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
7537 through a BIO pair triggered the default case, i.e.
7538 SSLerr(...,SSL_R_UNKNOWN_STATE).
7541 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
7542 can use the SSL library even if none of the specific BIOs is
7546 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
7547 for the encoded length.
7548 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
7550 *) Add initial documentation of the X509V3 functions.
7553 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
7554 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
7555 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
7556 secure PKCS#8 private key format with a high iteration count.
7559 *) Fix determination of Perl interpreter: A perl or perl5
7560 _directory_ in $PATH was also accepted as the interpreter.
7561 [Ralf S. Engelschall]
7563 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
7564 wrong with it but it was very old and did things like calling
7565 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
7569 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
7570 to use the new extension code.
7573 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
7574 with macros. This should make it easier to change their form, add extra
7575 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
7579 *) Add to configuration table a new entry that can specify an alternative
7580 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
7581 according to Mark Crispin <MRC@Panda.COM>.
7585 *) DES CBC did not update the IV. Weird.
7588 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
7589 Changing the behaviour of the former might break existing programs --
7590 where IV updating is needed, des_ncbc_encrypt can be used.
7593 *) When bntest is run from "make test" it drives bc to check its
7594 calculations, as well as internally checking them. If an internal check
7595 fails, it needs to cause bc to give a non-zero result or make test carries
7596 on without noticing the failure. Fixed.
7599 *) DES library cleanups.
7602 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
7603 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
7604 ciphers. NOTE: although the key derivation function has been verified
7605 against some published test vectors it has not been extensively tested
7606 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
7610 *) Instead of "mkdir -p", which is not fully portable, use new
7611 Perl script "util/mkdir-p.pl".
7614 *) Rewrite the way password based encryption (PBE) is handled. It used to
7615 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
7616 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
7617 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
7618 the 'parameter' field of the AlgorithmIdentifier is passed to the
7619 underlying key generation function so it must do its own ASN1 parsing.
7620 This has also changed the EVP_PBE_CipherInit() function which now has a
7621 'parameter' argument instead of literal salt and iteration count values
7622 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
7625 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
7626 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
7627 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
7628 KEY" because this clashed with PKCS#8 unencrypted string. Since this
7629 value was just used as a "magic string" and not used directly its
7630 value doesn't matter.
7633 *) Introduce some semblance of const correctness to BN. Shame C doesn't
7637 *) "linux-sparc64" configuration (ultrapenguin).
7638 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
7639 "linux-sparc" configuration.
7640 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
7642 *) config now generates no-xxx options for missing ciphers.
7645 *) Support the EBCDIC character set (work in progress).
7646 File ebcdic.c not yet included because it has a different license.
7647 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7649 *) Support BS2000/OSD-POSIX.
7650 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7652 *) Make callbacks for key generation use void * instead of char *.
7655 *) Make S/MIME samples compile (not yet tested).
7658 *) Additional typesafe stacks.
7661 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
7665 Changes between 0.9.3 and 0.9.3a [29 May 1999]
7667 *) New configuration variant "sco5-gcc".
7669 *) Updated some demos.
7670 [Sean O Riordain, Wade Scholine]
7672 *) Add missing BIO_free at exit of pkcs12 application.
7675 *) Fix memory leak in conf.c.
7678 *) Updates for Win32 to assembler version of MD5.
7681 *) Set #! path to perl in apps/der_chop to where we found it
7682 instead of using a fixed path.
7685 *) SHA library changes for irix64-mips4-cc.
7688 *) Improvements for VMS support.
7692 Changes between 0.9.2b and 0.9.3 [24 May 1999]
7694 *) Bignum library bug fix. IRIX 6 passes "make test" now!
7695 This also avoids the problems with SC4.2 and unpatched SC5.
7696 [Andy Polyakov <appro@fy.chalmers.se>]
7698 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
7699 These are required because of the typesafe stack would otherwise break
7700 existing code. If old code used a structure member which used to be STACK
7701 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
7702 sk_num or sk_value it would produce an error because the num, data members
7703 are not present in STACK_OF. Now it just produces a warning. sk_set
7704 replaces the old method of assigning a value to sk_value
7705 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
7706 that does this will no longer work (and should use sk_set instead) but
7707 this could be regarded as a "questionable" behaviour anyway.
7710 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
7711 correctly handle encrypted S/MIME data.
7714 *) Change type of various DES function arguments from des_cblock
7715 (which means, in function argument declarations, pointer to char)
7716 to des_cblock * (meaning pointer to array with 8 char elements),
7717 which allows the compiler to do more typechecking; it was like
7718 that back in SSLeay, but with lots of ugly casts.
7720 Introduce new type const_des_cblock.
7723 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
7724 problems: find RecipientInfo structure that matches recipient certificate
7725 and initialise the ASN1 structures properly based on passed cipher.
7728 *) Belatedly make the BN tests actually check the results.
7731 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
7732 to and from BNs: it was completely broken. New compilation option
7733 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
7734 key elements as negative integers.
7737 *) Reorganize and speed up MD5.
7738 [Andy Polyakov <appro@fy.chalmers.se>]
7741 [Richard Levitte <richard@levitte.org>]
7743 *) New option -out to asn1parse to allow the parsed structure to be
7744 output to a file. This is most useful when combined with the -strparse
7745 option to examine the output of things like OCTET STRINGS.
7748 *) Make SSL library a little more fool-proof by not requiring any longer
7749 that SSL_set_{accept,connect}_state be called before
7750 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
7751 in many applications because usually everything *appeared* to work as
7752 intended anyway -- now it really works as intended).
7755 *) Move openssl.cnf out of lib/.
7758 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
7759 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
7760 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
7761 [Ralf S. Engelschall]
7763 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
7764 handle PKCS#7 enveloped data properly.
7765 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
7767 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
7768 copying pointers. The cert_st handling is changed by this in
7769 various ways (and thus what used to be known as ctx->default_cert
7770 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
7771 any longer when s->cert does not give us what we need).
7772 ssl_cert_instantiate becomes obsolete by this change.
7773 As soon as we've got the new code right (possibly it already is?),
7774 we have solved a couple of bugs of the earlier code where s->cert
7775 was used as if it could not have been shared with other SSL structures.
7777 Note that using the SSL API in certain dirty ways now will result
7778 in different behaviour than observed with earlier library versions:
7779 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
7780 does not influence s as it used to.
7782 In order to clean up things more thoroughly, inside SSL_SESSION
7783 we don't use CERT any longer, but a new structure SESS_CERT
7784 that holds per-session data (if available); currently, this is
7785 the peer's certificate chain and, for clients, the server's certificate
7786 and temporary key. CERT holds only those values that can have
7787 meaningful defaults in an SSL_CTX.
7790 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
7791 from the internal representation. Various PKCS#7 fixes: remove some
7792 evil casts and set the enc_dig_alg field properly based on the signing
7796 *) Allow PKCS#12 password to be set from the command line or the
7797 environment. Let 'ca' get its config file name from the environment
7798 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
7802 *) Allow certificate policies extension to use an IA5STRING for the
7803 organization field. This is contrary to the PKIX definition but
7804 VeriSign uses it and IE5 only recognises this form. Document 'x509'
7808 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
7809 without disallowing inline assembler and the like for non-pedantic builds.
7812 *) Support Borland C++ builder.
7813 [Janez Jere <jj@void.si>, modified by Ulf Möller]
7818 *) SHA-1 cleanups and performance enhancements.
7819 [Andy Polyakov <appro@fy.chalmers.se>]
7821 *) Sparc v8plus assembler for the bignum library.
7822 [Andy Polyakov <appro@fy.chalmers.se>]
7824 *) Accept any -xxx and +xxx compiler options in Configure.
7827 *) Update HPUX configuration.
7830 *) Add missing sk_<type>_unshift() function to safestack.h
7831 [Ralf S. Engelschall]
7833 *) New function SSL_CTX_use_certificate_chain_file that sets the
7834 "extra_cert"s in addition to the certificate. (This makes sense
7835 only for "PEM" format files, as chains as a whole are not
7839 *) Support verify_depth from the SSL API.
7840 x509_vfy.c had what can be considered an off-by-one-error:
7841 Its depth (which was not part of the external interface)
7842 was actually counting the number of certificates in a chain;
7843 now it really counts the depth.
7846 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
7847 instead of X509err, which often resulted in confusing error
7848 messages since the error codes are not globally unique
7849 (e.g. an alleged error in ssl3_accept when a certificate
7850 didn't match the private key).
7852 *) New function SSL_CTX_set_session_id_context that allows to set a default
7853 value (so that you don't need SSL_set_session_id_context for each
7854 connection using the SSL_CTX).
7857 *) OAEP decoding bug fix.
7860 *) Support INSTALL_PREFIX for package builders, as proposed by
7864 *) New Configure options "threads" and "no-threads". For systems
7865 where the proper compiler options are known (currently Solaris
7866 and Linux), "threads" is the default.
7869 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
7872 *) Install various scripts to $(OPENSSLDIR)/misc, not to
7873 $(INSTALLTOP)/bin -- they shouldn't clutter directories
7874 such as /usr/local/bin.
7877 *) "make linux-shared" to build shared libraries.
7878 [Niels Poppe <niels@netbox.org>]
7880 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
7883 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
7884 extension adding in x509 utility.
7887 *) Remove NOPROTO sections and error code comments.
7890 *) Partial rewrite of the DEF file generator to now parse the ANSI
7894 *) New Configure options --prefix=DIR and --openssldir=DIR.
7897 *) Complete rewrite of the error code script(s). It is all now handled
7898 by one script at the top level which handles error code gathering,
7899 header rewriting and C source file generation. It should be much better
7900 than the old method: it now uses a modified version of Ulf's parser to
7901 read the ANSI prototypes in all header files (thus the old K&R definitions
7902 aren't needed for error creation any more) and do a better job of
7903 translating function codes into names. The old 'ASN1 error code imbedded
7904 in a comment' is no longer necessary and it doesn't use .err files which
7905 have now been deleted. Also the error code call doesn't have to appear all
7906 on one line (which resulted in some large lines...).
7909 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
7912 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
7913 0 (which usually indicates a closed connection), but continue reading.
7916 *) Fix some race conditions.
7919 *) Add support for CRL distribution points extension. Add Certificate
7920 Policies and CRL distribution points documentation.
7923 *) Move the autogenerated header file parts to crypto/opensslconf.h.
7926 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
7927 8 of keying material. Merlin has also confirmed interop with this fix
7928 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
7929 [Merlin Hughes <merlin@baltimore.ie>]
7931 *) Fix lots of warnings.
7932 [Richard Levitte <levitte@stacken.kth.se>]
7934 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
7935 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
7936 [Richard Levitte <levitte@stacken.kth.se>]
7938 *) Fix problems with sizeof(long) == 8.
7939 [Andy Polyakov <appro@fy.chalmers.se>]
7941 *) Change functions to ANSI C.
7944 *) Fix typos in error codes.
7945 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
7947 *) Remove defunct assembler files from Configure.
7950 *) SPARC v8 assembler BIGNUM implementation.
7951 [Andy Polyakov <appro@fy.chalmers.se>]
7953 *) Support for Certificate Policies extension: both print and set.
7954 Various additions to support the r2i method this uses.
7957 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
7958 return a const string when you are expecting an allocated buffer.
7961 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
7962 types DirectoryString and DisplayText.
7965 *) Add code to allow r2i extensions to access the configuration database,
7966 add an LHASH database driver and add several ctx helper functions.
7969 *) Fix an evil bug in bn_expand2() which caused various BN functions to
7970 fail when they extended the size of a BIGNUM.
7973 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
7974 support typesafe stack.
7977 *) Fix typo in SSL_[gs]et_options().
7978 [Nils Frostberg <nils@medcom.se>]
7980 *) Delete various functions and files that belonged to the (now obsolete)
7981 old X509V3 handling code.
7984 *) New Configure option "rsaref".
7987 *) Don't auto-generate pem.h.
7990 *) Introduce type-safe ASN.1 SETs.
7993 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
7994 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
7996 *) Introduce type-safe STACKs. This will almost certainly break lots of code
7997 that links with OpenSSL (well at least cause lots of warnings), but fear
7998 not: the conversion is trivial, and it eliminates loads of evil casts. A
7999 few STACKed things have been converted already. Feel free to convert more.
8000 In the fullness of time, I'll do away with the STACK type altogether.
8003 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
8004 specified in <certfile> by updating the entry in the index.txt file.
8005 This way one no longer has to edit the index.txt file manually for
8006 revoking a certificate. The -revoke option does the gory details now.
8007 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
8009 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
8010 `-text' option at all and this way the `-noout -text' combination was
8011 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
8012 [Ralf S. Engelschall]
8014 *) Make sure a corresponding plain text error message exists for the
8015 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
8016 verify callback function determined that a certificate was revoked.
8017 [Ralf S. Engelschall]
8019 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
8020 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
8021 all available cipers including rc5, which was forgotten until now.
8022 In order to let the testing shell script know which algorithms
8023 are available, a new (up to now undocumented) command
8024 "openssl list-cipher-commands" is used.
8027 *) Bugfix: s_client occasionally would sleep in select() when
8028 it should have checked SSL_pending() first.
8031 *) New functions DSA_do_sign and DSA_do_verify to provide access to
8032 the raw DSA values prior to ASN.1 encoding.
8035 *) Tweaks to Configure
8036 [Niels Poppe <niels@netbox.org>]
8038 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
8042 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
8045 *) New config option to avoid instructions that are illegal on the 80386.
8046 The default code is faster, but requires at least a 486.
8049 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
8050 SSL2_SERVER_VERSION (not used at all) macros, which are now the
8051 same as SSL2_VERSION anyway.
8054 *) New "-showcerts" option for s_client.
8057 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
8058 application. Various cleanups and fixes.
8061 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
8062 modify error routines to work internally. Add error codes and PBE init
8063 to library startup routines.
8066 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
8067 packing functions to asn1 and evp. Changed function names and error
8068 codes along the way.
8071 *) PKCS12 integration: and so it begins... First of several patches to
8072 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
8073 objects to objects.h
8076 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
8077 and display support for Thawte strong extranet extension.
8080 *) Add LinuxPPC support.
8081 [Jeff Dubrule <igor@pobox.org>]
8083 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
8084 bn_div_words in alpha.s.
8085 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
8087 *) Make sure the RSA OAEP test is skipped under -DRSAref because
8088 OAEP isn't supported when OpenSSL is built with RSAref.
8089 [Ulf Moeller <ulf@fitug.de>]
8091 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
8092 so they no longer are missing under -DNOPROTO.
8093 [Soren S. Jorvang <soren@t.dk>]
8096 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
8098 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
8099 doesn't work when the session is reused. Coming soon!
8102 *) Fix a security hole, that allows sessions to be reused in the wrong
8103 context thus bypassing client cert protection! All software that uses
8104 client certs and session caches in multiple contexts NEEDS PATCHING to
8105 allow session reuse! A fuller solution is in the works.
8106 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
8108 *) Some more source tree cleanups (removed obsolete files
8109 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
8110 permission on "config" script to be executable) and a fix for the INSTALL
8112 [Ulf Moeller <ulf@fitug.de>]
8114 *) Remove some legacy and erroneous uses of malloc, free instead of
8116 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
8118 *) Make rsa_oaep_test return non-zero on error.
8119 [Ulf Moeller <ulf@fitug.de>]
8121 *) Add support for native Solaris shared libraries. Configure
8122 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
8123 if someone would make that last step automatic.
8124 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
8126 *) ctx_size was not built with the right compiler during "make links". Fixed.
8129 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
8130 except NULL ciphers". This means the default cipher list will no longer
8131 enable NULL ciphers. They need to be specifically enabled e.g. with
8132 the string "DEFAULT:eNULL".
8135 *) Fix to RSA private encryption routines: if p < q then it would
8136 occasionally produce an invalid result. This will only happen with
8137 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
8140 *) Be less restrictive and allow also `perl util/perlpath.pl
8141 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
8142 because this way one can also use an interpreter named `perl5' (which is
8143 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
8144 installed as `perl').
8145 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8147 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
8148 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8150 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
8151 advapi32.lib to Win32 build and change the pem test comparision
8152 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
8153 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
8154 and crypto/des/ede_cbcm_enc.c.
8157 *) DES quad checksum was broken on big-endian architectures. Fixed.
8160 *) Comment out two functions in bio.h that aren't implemented. Fix up the
8161 Win32 test batch file so it (might) work again. The Win32 test batch file
8162 is horrible: I feel ill....
8165 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
8166 in e_os.h. Audit of header files to check ANSI and non ANSI
8167 sections: 10 functions were absent from non ANSI section and not exported
8168 from Windows DLLs. Fixed up libeay.num for new functions.
8171 *) Make `openssl version' output lines consistent.
8172 [Ralf S. Engelschall]
8174 *) Fix Win32 symbol export lists for BIO functions: Added
8175 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
8176 to ms/libeay{16,32}.def.
8177 [Ralf S. Engelschall]
8179 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
8180 fine under Unix and passes some trivial tests I've now added. But the
8181 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
8182 added to make sure no one expects that this stuff really works in the
8183 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
8184 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
8186 [Ralf S. Engelschall]
8188 *) Fix the generation of two part addresses in perl.
8189 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
8191 *) Add config entry for Linux on MIPS.
8192 [John Tobey <jtobey@channel1.com>]
8194 *) Make links whenever Configure is run, unless we are on Windoze.
8197 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
8198 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
8202 *) Add a useful kludge to allow package maintainers to specify compiler and
8203 other platforms details on the command line without having to patch the
8204 Configure script everytime: One now can use ``perl Configure
8205 <id>:<details>'', i.e. platform ids are allowed to have details appended
8206 to them (seperated by colons). This is treated as there would be a static
8207 pre-configured entry in Configure's %table under key <id> with value
8208 <details> and ``perl Configure <id>'' is called. So, when you want to
8209 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
8210 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
8211 now, which overrides the FreeBSD-elf entry on-the-fly.
8212 [Ralf S. Engelschall]
8214 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
8217 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
8218 on the `perl Configure ...' command line. This way one can compile
8219 OpenSSL libraries with Position Independent Code (PIC) which is needed
8220 for linking it into DSOs.
8221 [Ralf S. Engelschall]
8223 *) Remarkably, export ciphers were totally broken and no-one had noticed!
8227 *) Cleaned up the LICENSE document: The official contact for any license
8228 questions now is the OpenSSL core team under openssl-core@openssl.org.
8229 And add a paragraph about the dual-license situation to make sure people
8230 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
8231 to the OpenSSL toolkit.
8232 [Ralf S. Engelschall]
8234 *) General source tree makefile cleanups: Made `making xxx in yyy...'
8235 display consistent in the source tree and replaced `/bin/rm' by `rm'.
8236 Additonally cleaned up the `make links' target: Remove unnecessary
8237 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
8238 to speed processing and no longer clutter the display with confusing
8239 stuff. Instead only the actually done links are displayed.
8240 [Ralf S. Engelschall]
8242 *) Permit null encryption ciphersuites, used for authentication only. It used
8243 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
8244 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
8248 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
8249 signed attributes when verifying signatures (this would break them),
8250 the detached data encoding was wrong and public keys obtained using
8251 X509_get_pubkey() weren't freed.
8254 *) Add text documentation for the BUFFER functions. Also added a work around
8255 to a Win95 console bug. This was triggered by the password read stuff: the
8256 last character typed gets carried over to the next fread(). If you were
8257 generating a new cert request using 'req' for example then the last
8258 character of the passphrase would be CR which would then enter the first
8262 *) Added the new `Includes OpenSSL Cryptography Software' button as
8263 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
8264 button and can be used by applications based on OpenSSL to show the
8265 relationship to the OpenSSL project.
8266 [Ralf S. Engelschall]
8268 *) Remove confusing variables in function signatures in files
8269 ssl/ssl_lib.c and ssl/ssl.h.
8270 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8272 *) Don't install bss_file.c under PREFIX/include/
8273 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8275 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
8276 functions that return function pointers and has support for NT specific
8277 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
8278 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
8279 unsigned to signed types: this was killing the Win32 compile.
8282 *) Add new certificate file to stack functions,
8283 SSL_add_dir_cert_subjects_to_stack() and
8284 SSL_add_file_cert_subjects_to_stack(). These largely supplant
8285 SSL_load_client_CA_file(), and can be used to add multiple certs easily
8286 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
8287 This means that Apache-SSL and similar packages don't have to mess around
8288 to add as many CAs as they want to the preferred list.
8291 *) Experiment with doxygen documentation. Currently only partially applied to
8293 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
8294 openssl.doxy as the configuration file.
8297 *) Get rid of remaining C++-style comments which strict C compilers hate.
8298 [Ralf S. Engelschall, pointed out by Carlos Amengual]
8300 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
8301 compiled in by default: it has problems with large keys.
8304 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
8305 DH private keys and/or callback functions which directly correspond to
8306 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
8307 is needed for applications which have to configure certificates on a
8308 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
8310 For the RSA certificate situation is makes no difference, but
8311 for the DSA certificate situation this fixes the "no shared cipher"
8312 problem where the OpenSSL cipher selection procedure failed because the
8313 temporary keys were not overtaken from the context and the API provided
8314 no way to reconfigure them.
8315 The new functions now let applications reconfigure the stuff and they
8316 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
8317 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
8318 non-public-API function ssl_cert_instantiate() is used as a helper
8319 function and also to reduce code redundancy inside ssl_rsa.c.
8320 [Ralf S. Engelschall]
8322 *) Move s_server -dcert and -dkey options out of the undocumented feature
8323 area because they are useful for the DSA situation and should be
8324 recognized by the users.
8325 [Ralf S. Engelschall]
8327 *) Fix the cipher decision scheme for export ciphers: the export bits are
8328 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
8329 SSL_EXP_MASK. So, the original variable has to be used instead of the
8330 already masked variable.
8331 [Richard Levitte <levitte@stacken.kth.se>]
8333 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
8334 [Richard Levitte <levitte@stacken.kth.se>]
8336 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
8337 from `int' to `unsigned int' because it's a length and initialized by
8338 EVP_DigestFinal() which expects an `unsigned int *'.
8339 [Richard Levitte <levitte@stacken.kth.se>]
8341 *) Don't hard-code path to Perl interpreter on shebang line of Configure
8342 script. Instead use the usual Shell->Perl transition trick.
8343 [Ralf S. Engelschall]
8345 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
8346 (in addition to RSA certificates) to match the behaviour of `openssl dsa
8347 -noout -modulus' as it's already the case for `openssl rsa -noout
8348 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
8349 currently the public key is printed (a decision which was already done by
8350 `openssl dsa -modulus' in the past) which serves a similar purpose.
8351 Additionally the NO_RSA no longer completely removes the whole -modulus
8352 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
8354 [Ralf S. Engelschall]
8356 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
8357 BIO. See the source (crypto/evp/bio_ok.c) for more info.
8358 [Arne Ansper <arne@ats.cyber.ee>]
8360 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
8361 to be added. Now both 'req' and 'ca' can use new objects defined in the
8365 *) Add cool BIO that does syslog (or event log on NT).
8366 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
8368 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
8369 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
8370 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
8371 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
8374 *) Add preliminary config info for new extension code.
8377 *) Make RSA_NO_PADDING really use no padding.
8378 [Ulf Moeller <ulf@fitug.de>]
8380 *) Generate errors when private/public key check is done.
8383 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
8384 for some CRL extensions and new objects added.
8387 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
8388 key usage extension and fuller support for authority key id.
8391 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
8392 padding method for RSA, which is recommended for new applications in PKCS
8393 #1 v2.0 (RFC 2437, October 1998).
8394 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
8395 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
8396 against Bleichbacher's attack on RSA.
8397 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
8400 *) Updates to the new SSL compression code
8401 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8403 *) Fix so that the version number in the master secret, when passed
8404 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
8405 (because the server will not accept higher), that the version number
8406 is 0x03,0x01, not 0x03,0x00
8407 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8409 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
8410 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
8411 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
8414 *) Support for RAW extensions where an arbitrary extension can be
8415 created by including its DER encoding. See apps/openssl.cnf for
8419 *) Make sure latest Perl versions don't interpret some generated C array
8420 code as Perl array code in the crypto/err/err_genc.pl script.
8421 [Lars Weber <3weber@informatik.uni-hamburg.de>]
8423 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
8424 not many people have the assembler. Various Win32 compilation fixes and
8425 update to the INSTALL.W32 file with (hopefully) more accurate Win32
8429 *) Modify configure script 'Configure' to automatically create crypto/date.h
8430 file under Win32 and also build pem.h from pem.org. New script
8431 util/mkfiles.pl to create the MINFO file on environments that can't do a
8432 'make files': perl util/mkfiles.pl >MINFO should work.
8435 *) Major rework of DES function declarations, in the pursuit of correctness
8436 and purity. As a result, many evil casts evaporated, and some weirdness,
8437 too. You may find this causes warnings in your code. Zapping your evil
8438 casts will probably fix them. Mostly.
8441 *) Fix for a typo in asn1.h. Bug fix to object creation script
8442 obj_dat.pl. It considered a zero in an object definition to mean
8443 "end of object": none of the objects in objects.h have any zeros
8444 so it wasn't spotted.
8445 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
8447 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
8448 Masking (CBCM). In the absence of test vectors, the best I have been able
8449 to do is check that the decrypt undoes the encrypt, so far. Send me test
8450 vectors if you have them.
8453 *) Correct calculation of key length for export ciphers (too much space was
8454 allocated for null ciphers). This has not been tested!
8457 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
8458 message is now correct (it understands "crypto" and "ssl" on its
8459 command line). There is also now an "update" option. This will update
8460 the util/ssleay.num and util/libeay.num files with any new functions.
8462 perl util/mkdef.pl crypto ssl update
8463 it will update them.
8466 *) Overhauled the Perl interface (perl/*):
8467 - ported BN stuff to OpenSSL's different BN library
8468 - made the perl/ source tree CVS-aware
8469 - renamed the package from SSLeay to OpenSSL (the files still contain
8470 their history because I've copied them in the repository)
8471 - removed obsolete files (the test scripts will be replaced
8472 by better Test::Harness variants in the future)
8473 [Ralf S. Engelschall]
8475 *) First cut for a very conservative source tree cleanup:
8476 1. merge various obsolete readme texts into doc/ssleay.txt
8477 where we collect the old documents and readme texts.
8478 2. remove the first part of files where I'm already sure that we no
8479 longer need them because of three reasons: either they are just temporary
8480 files which were left by Eric or they are preserved original files where
8481 I've verified that the diff is also available in the CVS via "cvs diff
8482 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
8483 the crypto/md/ stuff).
8484 [Ralf S. Engelschall]
8486 *) More extension code. Incomplete support for subject and issuer alt
8487 name, issuer and authority key id. Change the i2v function parameters
8488 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
8489 what that's for :-) Fix to ASN1 macro which messed up
8490 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
8493 *) Preliminary support for ENUMERATED type. This is largely copied from the
8497 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
8498 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8500 *) Make sure `make rehash' target really finds the `openssl' program.
8501 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8503 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
8504 like to hear about it if this slows down other processors.
8507 *) Add CygWin32 platform information to Configure script.
8508 [Alan Batie <batie@aahz.jf.intel.com>]
8510 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
8511 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
8513 *) New program nseq to manipulate netscape certificate sequences
8516 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
8520 *) Fixes to BN code. Previously the default was to define BN_RECURSION
8521 but the BN code had some problems that would cause failures when
8522 doing certificate verification and some other functions.
8523 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8525 *) Add ASN1 and PEM code to support netscape certificate sequences.
8528 *) Add ASN1 and PEM code to support netscape certificate sequences.
8531 *) Add several PKIX and private extended key usage OIDs.
8534 *) Modify the 'ca' program to handle the new extension code. Modify
8535 openssl.cnf for new extension format, add comments.
8538 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
8539 and add a sample to openssl.cnf so req -x509 now adds appropriate
8543 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
8544 error code, add initial support to X509_print() and x509 application.
8547 *) Takes a deep breath and start addding X509 V3 extension support code. Add
8548 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
8549 stuff is currently isolated and isn't even compiled yet.
8552 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
8553 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
8554 Removed the versions check from X509 routines when loading extensions:
8555 this allows certain broken certificates that don't set the version
8556 properly to be processed.
8559 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
8560 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
8561 can still be regenerated with "make depend".
8564 *) Spelling mistake in C version of CAST-128.
8565 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
8567 *) Changes to the error generation code. The perl script err-code.pl
8568 now reads in the old error codes and retains the old numbers, only
8569 adding new ones if necessary. It also only changes the .err files if new
8570 codes are added. The makefiles have been modified to only insert errors
8571 when needed (to avoid needlessly modifying header files). This is done
8572 by only inserting errors if the .err file is newer than the auto generated
8573 C file. To rebuild all the error codes from scratch (the old behaviour)
8574 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
8575 or delete all the .err files.
8578 *) CAST-128 was incorrectly implemented for short keys. The C version has
8579 been fixed, but is untested. The assembler versions are also fixed, but
8580 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
8581 to regenerate it if needed.
8582 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
8583 Hagino <itojun@kame.net>]
8585 *) File was opened incorrectly in randfile.c.
8586 [Ulf Möller <ulf@fitug.de>]
8588 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
8589 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
8590 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
8591 al: it's just almost always a UTCTime. Note this patch adds new error
8592 codes so do a "make errors" if there are problems.
8595 *) Correct Linux 1 recognition in config.
8596 [Ulf Möller <ulf@fitug.de>]
8598 *) Remove pointless MD5 hash when using DSA keys in ca.
8599 [Anonymous <nobody@replay.com>]
8601 *) Generate an error if given an empty string as a cert directory. Also
8602 generate an error if handed NULL (previously returned 0 to indicate an
8603 error, but didn't set one).
8604 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
8606 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
8609 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
8610 parameters. This was causing a warning which killed off the Win32 compile.
8613 *) Remove C++ style comments from crypto/bn/bn_local.h.
8614 [Neil Costigan <neil.costigan@celocom.com>]
8616 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
8617 based on a text string, looking up short and long names and finally
8618 "dot" format. The "dot" format stuff didn't work. Added new function
8619 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
8620 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
8621 OID is not part of the table.
8624 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
8625 X509_LOOKUP_by_alias().
8628 *) Sort openssl functions by name.
8631 *) Get the gendsa program working (hopefully) and add it to app list. Remove
8632 encryption from sample DSA keys (in case anyone is interested the password
8636 *) Make _all_ *_free functions accept a NULL pointer.
8637 [Frans Heymans <fheymans@isaserver.be>]
8639 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
8641 [Anonymous <nobody@replay.com>]
8643 *) s_server should send the CAfile as acceptable CAs, not its own cert.
8644 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8646 *) Don't blow it for numeric -newkey arguments to apps/req.
8647 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8649 *) Temp key "for export" tests were wrong in s3_srvr.c.
8650 [Anonymous <nobody@replay.com>]
8652 *) Add prototype for temp key callback functions
8653 SSL_CTX_set_tmp_{rsa,dh}_callback().
8656 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
8657 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
8660 *) X509_name_add_entry() freed the wrong thing after an error.
8661 [Arne Ansper <arne@ats.cyber.ee>]
8663 *) rsa_eay.c would attempt to free a NULL context.
8664 [Arne Ansper <arne@ats.cyber.ee>]
8666 *) BIO_s_socket() had a broken should_retry() on Windoze.
8667 [Arne Ansper <arne@ats.cyber.ee>]
8669 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
8670 [Arne Ansper <arne@ats.cyber.ee>]
8672 *) Make sure the already existing X509_STORE->depth variable is initialized
8673 in X509_STORE_new(), but document the fact that this variable is still
8674 unused in the certificate verification process.
8675 [Ralf S. Engelschall]
8677 *) Fix the various library and apps files to free up pkeys obtained from
8678 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
8681 *) Fix reference counting in X509_PUBKEY_get(). This makes
8682 demos/maurice/example2.c work, amongst others, probably.
8683 [Steve Henson and Ben Laurie]
8685 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
8686 `openssl' and second, the shortcut symlinks for the `openssl <command>'
8687 are no longer created. This way we have a single and consistent command
8688 line interface `openssl <command>', similar to `cvs <command>'.
8689 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
8691 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
8692 BIT STRING wrapper always have zero unused bits.
8695 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
8698 *) Make the top-level INSTALL documentation easier to understand.
8701 *) Makefiles updated to exit if an error occurs in a sub-directory
8702 make (including if user presses ^C) [Paul Sutton]
8704 *) Make Montgomery context stuff explicit in RSA data structure.
8707 *) Fix build order of pem and err to allow for generated pem.h.
8710 *) Fix renumbering bug in X509_NAME_delete_entry().
8713 *) Enhanced the err-ins.pl script so it makes the error library number
8714 global and can add a library name. This is needed for external ASN1 and
8715 other error libraries.
8718 *) Fixed sk_insert which never worked properly.
8721 *) Fix ASN1 macros so they can handle indefinite length construted
8722 EXPLICIT tags. Some non standard certificates use these: they can now
8726 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
8727 into a single doc/ssleay.txt bundle. This way the information is still
8728 preserved but no longer messes up this directory. Now it's new room for
8729 the new set of documenation files.
8730 [Ralf S. Engelschall]
8732 *) SETs were incorrectly DER encoded. This was a major pain, because they
8733 shared code with SEQUENCEs, which aren't coded the same. This means that
8734 almost everything to do with SETs or SEQUENCEs has either changed name or
8735 number of arguments.
8736 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
8738 *) Fix test data to work with the above.
8741 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
8742 was already fixed by Eric for 0.9.1 it seems.
8743 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
8745 *) Autodetect FreeBSD3.
8748 *) Fix various bugs in Configure. This affects the following platforms:
8752 unixware-2.0-pentium
8756 *) Eliminate generated files from CVS. Reorder tests to regenerate files
8757 before they are needed.
8760 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
8764 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
8766 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
8767 changed SSLeay to OpenSSL in version strings.
8768 [Ralf S. Engelschall]
8770 *) Some fixups to the top-level documents.
8773 *) Fixed the nasty bug where rsaref.h was not found under compile-time
8774 because the symlink to include/ was missing.
8775 [Ralf S. Engelschall]
8777 *) Incorporated the popular no-RSA/DSA-only patches
8778 which allow to compile a RSA-free SSLeay.
8779 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
8781 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
8782 when "ssleay" is still not found.
8783 [Ralf S. Engelschall]
8785 *) Added more platforms to Configure: Cray T3E, HPUX 11,
8786 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
8788 *) Updated the README file.
8789 [Ralf S. Engelschall]
8791 *) Added various .cvsignore files in the CVS repository subdirs
8792 to make a "cvs update" really silent.
8793 [Ralf S. Engelschall]
8795 *) Recompiled the error-definition header files and added
8796 missing symbols to the Win32 linker tables.
8797 [Ralf S. Engelschall]
8799 *) Cleaned up the top-level documents;
8800 o new files: CHANGES and LICENSE
8801 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
8802 o merged COPYRIGHT into LICENSE
8803 o removed obsolete TODO file
8804 o renamed MICROSOFT to INSTALL.W32
8805 [Ralf S. Engelschall]
8807 *) Removed dummy files from the 0.9.1b source tree:
8808 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
8809 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
8810 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
8811 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
8812 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
8813 [Ralf S. Engelschall]
8815 *) Added various platform portability fixes.
8818 *) The Genesis of the OpenSSL rpject:
8819 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
8820 Young and Tim J. Hudson created while they were working for C2Net until
8822 [The OpenSSL Project]
8825 Changes between 0.9.0b and 0.9.1b [not released]
8827 *) Updated a few CA certificates under certs/
8830 *) Changed some BIGNUM api stuff.
8833 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
8834 DGUX x86, Linux Alpha, etc.
8837 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
8838 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
8842 *) Add -strparse option to asn1pars program which parses nested
8844 [Dr Stephen Henson <shenson@bigfoot.com>]
8846 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
8849 *) DSA fix for "ca" program.
8852 *) Added "-genkey" option to "dsaparam" program.
8855 *) Added RIPE MD160 (rmd160) message digest.
8858 *) Added -a (all) option to "ssleay version" command.
8861 *) Added PLATFORM define which is the id given to Configure.
8864 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
8867 *) Extended the ASN.1 parser routines.
8870 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
8873 *) Added a BN_CTX to the BN library.
8876 *) Fixed the weak key values in DES library
8879 *) Changed API in EVP library for cipher aliases.
8882 *) Added support for RC2/64bit cipher.
8885 *) Converted the lhash library to the crypto/mem.c functions.
8888 *) Added more recognized ASN.1 object ids.
8891 *) Added more RSA padding checks for SSL/TLS.
8894 *) Added BIO proxy/filter functionality.
8897 *) Added extra_certs to SSL_CTX which can be used
8898 send extra CA certificates to the client in the CA cert chain sending
8899 process. It can be configured with SSL_CTX_add_extra_chain_cert().
8902 *) Now Fortezza is denied in the authentication phase because
8903 this is key exchange mechanism is not supported by SSLeay at all.
8906 *) Additional PKCS1 checks.
8909 *) Support the string "TLSv1" for all TLS v1 ciphers.
8912 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
8913 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
8916 *) Fixed a few memory leaks.
8919 *) Fixed various code and comment typos.
8922 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
8923 bytes sent in the client random.
8924 [Edward Bishop <ebishop@spyglass.com>]
projects / oweals / openssl.git / blob