5 Changes between 0.9.8za and 0.9.8zb [xx XXX xxxx]
9 Changes between 0.9.8y and 0.9.8za [5 Jun 2014]
11 *) Fix for SSL/TLS MITM flaw. An attacker using a carefully crafted
12 handshake can force the use of weak keying material in OpenSSL
13 SSL/TLS clients and servers.
15 Thanks to KIKUCHI Masashi (Lepidum Co. Ltd.) for discovering and
16 researching this issue. (CVE-2014-0224)
17 [KIKUCHI Masashi, Steve Henson]
19 *) Fix DTLS recursion flaw. By sending an invalid DTLS handshake to an
20 OpenSSL DTLS client the code can be made to recurse eventually crashing
23 Thanks to Imre Rad (Search-Lab Ltd.) for discovering this issue.
25 [Imre Rad, Steve Henson]
27 *) Fix DTLS invalid fragment vulnerability. A buffer overrun attack can
28 be triggered by sending invalid DTLS fragments to an OpenSSL DTLS
29 client or server. This is potentially exploitable to run arbitrary
30 code on a vulnerable client or server.
32 Thanks to Jüri Aedla for reporting this issue. (CVE-2014-0195)
33 [Jüri Aedla, Steve Henson]
35 *) Fix bug in TLS code where clients enable anonymous ECDH ciphersuites
36 are subject to a denial of service attack.
38 Thanks to Felix Gröbert and Ivan Fratric at Google for discovering
39 this issue. (CVE-2014-3470)
40 [Felix Gröbert, Ivan Fratric, Steve Henson]
42 *) Fix for the attack described in the paper "Recovering OpenSSL
43 ECDSA Nonces Using the FLUSH+RELOAD Cache Side-channel Attack"
44 by Yuval Yarom and Naomi Benger. Details can be obtained from:
45 http://eprint.iacr.org/2014/140
47 Thanks to Yuval Yarom and Naomi Benger for discovering this
48 flaw and to Yuval Yarom for supplying a fix (CVE-2014-0076)
49 [Yuval Yarom and Naomi Benger]
51 Thanks to mancha for backporting the fix to the 0.9.8 branch.
53 *) Fix handling of warning-level alerts in SSL23 client mode so they
54 don't cause client-side termination (eg. on SNI unrecognized_name
55 warnings). Add client and server support for six additional alerts
56 per RFC 6066 and RFC 4279.
59 *) Add option SSL_OP_SAFARI_ECDHE_ECDSA_BUG (part of SSL_OP_ALL) which
60 avoids preferring ECDHE-ECDSA ciphers when the client appears to be
61 Safari on OS X. Safari on OS X 10.8..10.8.3 advertises support for
62 several ECDHE-ECDSA ciphers, but fails to negotiate them. The bug
63 is fixed in OS X 10.8.4, but Apple have ruled out both hot fixing
64 10.8..10.8.3 and forcing users to upgrade to 10.8.4 or newer.
65 [Rob Stradling, Adam Langley]
67 Changes between 0.9.8x and 0.9.8y [5 Feb 2013]
69 *) Make the decoding of SSLv3, TLS and DTLS CBC records constant time.
71 This addresses the flaw in CBC record processing discovered by
72 Nadhem Alfardan and Kenny Paterson. Details of this attack can be found
73 at: http://www.isg.rhul.ac.uk/tls/
75 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
76 Security Group at Royal Holloway, University of London
77 (www.isg.rhul.ac.uk) for discovering this flaw and Adam Langley and
78 Emilia Käsper for the initial patch.
80 [Emilia Käsper, Adam Langley, Ben Laurie, Andy Polyakov, Steve Henson]
82 *) Return an error when checking OCSP signatures when key is NULL.
83 This fixes a DoS attack. (CVE-2013-0166)
86 *) Call OCSP Stapling callback after ciphersuite has been chosen, so
87 the right response is stapled. Also change SSL_get_certificate()
88 so it returns the certificate actually sent.
89 See http://rt.openssl.org/Ticket/Display.html?id=2836.
91 [Rob Stradling <rob.stradling@comodo.com>]
93 *) Fix possible deadlock when decoding public keys.
96 Changes between 0.9.8w and 0.9.8x [10 May 2012]
98 *) Sanity check record length before skipping explicit IV in DTLS
101 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic
102 fuzzing as a service testing platform.
106 *) Initialise tkeylen properly when encrypting CMS messages.
107 Thanks to Solar Designer of Openwall for reporting this issue.
110 Changes between 0.9.8v and 0.9.8w [23 Apr 2012]
112 *) The fix for CVE-2012-2110 did not take into account that the
113 'len' argument to BUF_MEM_grow and BUF_MEM_grow_clean is an
114 int in OpenSSL 0.9.8, making it still vulnerable. Fix by
115 rejecting negative len parameter. (CVE-2012-2131)
116 [Tomas Hoger <thoger@redhat.com>]
118 Changes between 0.9.8u and 0.9.8v [19 Apr 2012]
120 *) Check for potentially exploitable overflows in asn1_d2i_read_bio
121 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer
122 in CRYPTO_realloc_clean.
124 Thanks to Tavis Ormandy, Google Security Team, for discovering this
125 issue and to Adam Langley <agl@chromium.org> for fixing it.
127 [Adam Langley (Google), Tavis Ormandy, Google Security Team]
129 Changes between 0.9.8t and 0.9.8u [12 Mar 2012]
131 *) Fix MMA (Bleichenbacher's attack on PKCS #1 v1.5 RSA padding) weakness
132 in CMS and PKCS7 code. When RSA decryption fails use a random key for
133 content decryption and always return the same error. Note: this attack
134 needs on average 2^20 messages so it only affects automated senders. The
135 old behaviour can be reenabled in the CMS code by setting the
136 CMS_DEBUG_DECRYPT flag: this is useful for debugging and testing where
137 an MMA defence is not necessary.
138 Thanks to Ivan Nestlerode <inestlerode@us.ibm.com> for discovering
139 this issue. (CVE-2012-0884)
142 *) Fix CVE-2011-4619: make sure we really are receiving a
143 client hello before rejecting multiple SGC restarts. Thanks to
144 Ivan Nestlerode <inestlerode@us.ibm.com> for discovering this bug.
147 Changes between 0.9.8s and 0.9.8t [18 Jan 2012]
149 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109.
150 Thanks to Antonio Martin, Enterprise Secure Access Research and
151 Development, Cisco Systems, Inc. for discovering this bug and
152 preparing a fix. (CVE-2012-0050)
155 Changes between 0.9.8r and 0.9.8s [4 Jan 2012]
157 *) Nadhem Alfardan and Kenny Paterson have discovered an extension
158 of the Vaudenay padding oracle attack on CBC mode encryption
159 which enables an efficient plaintext recovery attack against
160 the OpenSSL implementation of DTLS. Their attack exploits timing
161 differences arising during decryption processing. A research
162 paper describing this attack can be found at:
163 http://www.isg.rhul.ac.uk/~kp/dtls.pdf
164 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
165 Security Group at Royal Holloway, University of London
166 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann
167 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de>
168 for preparing the fix. (CVE-2011-4108)
169 [Robin Seggelmann, Michael Tuexen]
171 *) Stop policy check failure freeing same buffer twice. (CVE-2011-4109)
172 [Ben Laurie, Kasper <ekasper@google.com>]
174 *) Clear bytes used for block padding of SSL 3.0 records.
176 [Adam Langley (Google)]
178 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George
179 Kadianakis <desnacked@gmail.com> for discovering this issue and
180 Adam Langley for preparing the fix. (CVE-2011-4619)
181 [Adam Langley (Google)]
183 *) Prevent malformed RFC3779 data triggering an assertion failure.
184 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw
185 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577)
186 [Rob Austein <sra@hactrn.net>]
188 *) Fix ssl_ciph.c set-up race.
189 [Adam Langley (Google)]
191 *) Fix spurious failures in ecdsatest.c.
192 [Emilia Käsper (Google)]
194 *) Fix the BIO_f_buffer() implementation (which was mixing different
195 interpretations of the '..._len' fields).
196 [Adam Langley (Google)]
198 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
199 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
200 threads won't reuse the same blinding coefficients.
202 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
203 lock to call BN_BLINDING_invert_ex, and avoids one use of
204 BN_BLINDING_update for each BN_BLINDING structure (previously,
205 the last update always remained unused).
206 [Emilia Käsper (Google)]
208 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
209 for multi-threaded use of ECDH.
210 [Adam Langley (Google)]
212 *) Fix x509_name_ex_d2i memory leak on bad inputs.
215 *) Add protection against ECDSA timing attacks as mentioned in the paper
216 by Billy Bob Brumley and Nicola Tuveri, see:
218 http://eprint.iacr.org/2011/232.pdf
220 [Billy Bob Brumley and Nicola Tuveri]
222 Changes between 0.9.8q and 0.9.8r [8 Feb 2011]
224 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
225 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
227 *) Fix bug in string printing code: if *any* escaping is enabled we must
228 escape the escape character (backslash) or the resulting string is
232 Changes between 0.9.8p and 0.9.8q [2 Dec 2010]
234 *) Disable code workaround for ancient and obsolete Netscape browsers
235 and servers: an attacker can use it in a ciphersuite downgrade attack.
236 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
239 *) Fixed J-PAKE implementation error, originally discovered by
240 Sebastien Martini, further info and confirmation from Stefan
241 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
244 Changes between 0.9.8o and 0.9.8p [16 Nov 2010]
246 *) Fix extension code to avoid race conditions which can result in a buffer
247 overrun vulnerability: resumed sessions must not be modified as they can
248 be shared by multiple threads. CVE-2010-3864
251 *) Fix for double free bug in ssl/s3_clnt.c CVE-2010-2939
254 *) Don't reencode certificate when calculating signature: cache and use
255 the original encoding instead. This makes signature verification of
256 some broken encodings work correctly.
259 *) ec2_GF2m_simple_mul bugfix: compute correct result if the output EC_POINT
260 is also one of the inputs.
261 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
263 *) Don't repeatedly append PBE algorithms to table if they already exist.
264 Sort table on each new add. This effectively makes the table read only
265 after all algorithms are added and subsequent calls to PKCS12_pbe_add
269 Changes between 0.9.8n and 0.9.8o [01 Jun 2010]
271 [NB: OpenSSL 0.9.8o and later 0.9.8 patch levels were released after
274 *) Correct a typo in the CMS ASN1 module which can result in invalid memory
275 access or freeing data twice (CVE-2010-0742)
276 [Steve Henson, Ronald Moesbergen <intercommit@gmail.com>]
278 *) Add SHA2 algorithms to SSL_library_init(). SHA2 is becoming far more
279 common in certificates and some applications which only call
280 SSL_library_init and not OpenSSL_add_all_algorithms() will fail.
284 Reduce copying into .apps and .test in makevms.com
285 Don't try to use blank CA certificate in CA.com
286 Allow use of C files from original directories in maketests.com
287 [Steven M. Schweda" <sms@antinode.info>]
289 Changes between 0.9.8m and 0.9.8n [24 Mar 2010]
291 *) When rejecting SSL/TLS records due to an incorrect version number, never
292 update s->server with a new major version number. As of
293 - OpenSSL 0.9.8m if 'short' is a 16-bit type,
294 - OpenSSL 0.9.8f if 'short' is longer than 16 bits,
295 the previous behavior could result in a read attempt at NULL when
296 receiving specific incorrect SSL/TLS records once record payload
297 protection is active. (CVE-2010-0740)
298 [Bodo Moeller, Adam Langley <agl@chromium.org>]
300 *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL
301 could be crashed if the relevant tables were not present (e.g. chrooted).
302 [Tomas Hoger <thoger@redhat.com>]
304 Changes between 0.9.8l and 0.9.8m [25 Feb 2010]
306 *) Always check bn_wexpend() return values for failure. (CVE-2009-3245)
307 [Martin Olsson, Neel Mehta]
309 *) Fix X509_STORE locking: Every 'objs' access requires a lock (to
310 accommodate for stack sorting, always a write lock!).
313 *) On some versions of WIN32 Heap32Next is very slow. This can cause
314 excessive delays in the RAND_poll(): over a minute. As a workaround
315 include a time check in the inner Heap32Next loop too.
318 *) The code that handled flushing of data in SSL/TLS originally used the
319 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused
320 the problem outlined in PR#1949. The fix suggested there however can
321 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions
322 of Apache). So instead simplify the code to flush unconditionally.
323 This should be fine since flushing with no data to flush is a no op.
326 *) Handle TLS versions 2.0 and later properly and correctly use the
327 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way
328 off ancient servers have a habit of sticking around for a while...
331 *) Modify compression code so it frees up structures without using the
332 ex_data callbacks. This works around a problem where some applications
333 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when
334 restarting) then use compression (e.g. SSL with compression) later.
335 This results in significant per-connection memory leaks and
336 has caused some security issues including CVE-2008-1678 and
340 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't
341 change when encrypting or decrypting.
344 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to
345 connect and renegotiate with servers which do not support RI.
346 Until RI is more widely deployed this option is enabled by default.
349 *) Add "missing" ssl ctrls to clear options and mode.
352 *) If client attempts to renegotiate and doesn't support RI respond with
353 a no_renegotiation alert as required by RFC5746. Some renegotiating
354 TLS clients will continue a connection gracefully when they receive
355 the alert. Unfortunately OpenSSL mishandled this alert and would hang
356 waiting for a server hello which it will never receive. Now we treat a
357 received no_renegotiation alert as a fatal error. This is because
358 applications requesting a renegotiation might well expect it to succeed
359 and would have no code in place to handle the server denying it so the
360 only safe thing to do is to terminate the connection.
363 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if
364 peer supports secure renegotiation and 0 otherwise. Print out peer
365 renegotiation support in s_client/s_server.
368 *) Replace the highly broken and deprecated SPKAC certification method with
369 the updated NID creation version. This should correctly handle UTF8.
372 *) Implement RFC5746. Re-enable renegotiation but require the extension
373 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
374 turns out to be a bad idea. It has been replaced by
375 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with
376 SSL_CTX_set_options(). This is really not recommended unless you
377 know what you are doing.
378 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson]
380 *) Fixes to stateless session resumption handling. Use initial_ctx when
381 issuing and attempting to decrypt tickets in case it has changed during
382 servername handling. Use a non-zero length session ID when attempting
383 stateless session resumption: this makes it possible to determine if
384 a resumption has occurred immediately after receiving server hello
385 (several places in OpenSSL subtly assume this) instead of later in
389 *) The functions ENGINE_ctrl(), OPENSSL_isservice(),
390 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
391 fixes for a few places where the return code is not checked
393 [Julia Lawall <julia@diku.dk>]
395 *) Add --strict-warnings option to Configure script to include devteam
396 warnings in other configurations.
399 *) Add support for --libdir option and LIBDIR variable in makefiles. This
400 makes it possible to install openssl libraries in locations which
401 have names other than "lib", for example "/usr/lib64" which some
403 [Steve Henson, based on patch from Jeremy Utley]
405 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
406 X690 8.9.12 and can produce some misleading textual output of OIDs.
407 [Steve Henson, reported by Dan Kaminsky]
409 *) Delete MD2 from algorithm tables. This follows the recommendation in
410 several standards that it is not used in new applications due to
411 several cryptographic weaknesses. For binary compatibility reasons
412 the MD2 API is still compiled in by default.
415 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
419 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
420 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
422 [Guenter <lists@gknw.net>]
424 *) Fix the server certificate chain building code to use X509_verify_cert(),
425 it used to have an ad-hoc builder which was unable to cope with anything
426 other than a simple chain.
427 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
429 *) Don't check self signed certificate signatures in X509_verify_cert()
430 by default (a flag can override this): it just wastes time without
431 adding any security. As a useful side effect self signed root CAs
432 with non-FIPS digests are now usable in FIPS mode.
435 *) In dtls1_process_out_of_seq_message() the check if the current message
436 is already buffered was missing. For every new message was memory
437 allocated, allowing an attacker to perform an denial of service attack
438 with sending out of seq handshake messages until there is no memory
439 left. Additionally every future messege was buffered, even if the
440 sequence number made no sense and would be part of another handshake.
441 So only messages with sequence numbers less than 10 in advance will be
442 buffered. (CVE-2009-1378)
443 [Robin Seggelmann, discovered by Daniel Mentz]
445 *) Records are buffered if they arrive with a future epoch to be
446 processed after finishing the corresponding handshake. There is
447 currently no limitation to this buffer allowing an attacker to perform
448 a DOS attack with sending records with future epochs until there is no
449 memory left. This patch adds the pqueue_size() function to detemine
450 the size of a buffer and limits the record buffer to 100 entries.
452 [Robin Seggelmann, discovered by Daniel Mentz]
454 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
455 parent structure is freed. (CVE-2009-1379)
458 *) Handle non-blocking I/O properly in SSL_shutdown() call.
459 [Darryl Miles <darryl-mailinglists@netbauds.net>]
462 [Ilya O. <vrghost@gmail.com>]
464 Changes between 0.9.8k and 0.9.8l [5 Nov 2009]
466 *) Disable renegotiation completely - this fixes a severe security
467 problem (CVE-2009-3555) at the cost of breaking all
468 renegotiation. Renegotiation can be re-enabled by setting
469 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at
470 run-time. This is really not recommended unless you know what
474 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
476 *) Don't set val to NULL when freeing up structures, it is freed up by
477 underlying code. If sizeof(void *) > sizeof(long) this can result in
478 zeroing past the valid field. (CVE-2009-0789)
479 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
481 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
482 checked correctly. This would allow some invalid signed attributes to
483 appear to verify correctly. (CVE-2009-0591)
484 [Ivan Nestlerode <inestlerode@us.ibm.com>]
486 *) Reject UniversalString and BMPString types with invalid lengths. This
487 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
488 a legal length. (CVE-2009-0590)
491 *) Set S/MIME signing as the default purpose rather than setting it
492 unconditionally. This allows applications to override it at the store
496 *) Permit restricted recursion of ASN1 strings. This is needed in practice
497 to handle some structures.
500 *) Improve efficiency of mem_gets: don't search whole buffer each time
502 [Jeremy Shapiro <jnshapir@us.ibm.com>]
504 *) New -hex option for openssl rand.
507 *) Print out UTF8String and NumericString when parsing ASN1.
510 *) Support NumericString type for name components.
513 *) Allow CC in the environment to override the automatically chosen
514 compiler. Note that nothing is done to ensure flags work with the
518 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
520 *) Properly check EVP_VerifyFinal() and similar return values
522 [Ben Laurie, Bodo Moeller, Google Security Team]
524 *) Enable TLS extensions by default.
527 *) Allow the CHIL engine to be loaded, whether the application is
528 multithreaded or not. (This does not release the developer from the
529 obligation to set up the dynamic locking callbacks.)
530 [Sander Temme <sander@temme.net>]
532 *) Use correct exit code if there is an error in dgst command.
533 [Steve Henson; problem pointed out by Roland Dirlewanger]
535 *) Tweak Configure so that you need to say "experimental-jpake" to enable
536 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
539 *) Add experimental JPAKE support, including demo authentication in
540 s_client and s_server.
543 *) Set the comparison function in v3_addr_canonize().
544 [Rob Austein <sra@hactrn.net>]
546 *) Add support for XMPP STARTTLS in s_client.
547 [Philip Paeps <philip@freebsd.org>]
549 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
550 to ensure that even with this option, only ciphersuites in the
551 server's preference list will be accepted. (Note that the option
552 applies only when resuming a session, so the earlier behavior was
553 just about the algorithm choice for symmetric cryptography.)
556 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
558 *) Fix NULL pointer dereference if a DTLS server received
559 ChangeCipherSpec as first record (CVE-2009-1386).
562 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
563 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
566 *) The fix in 0.9.8c that supposedly got rid of unsafe
567 double-checked locking was incomplete for RSA blinding,
568 addressing just one layer of what turns out to have been
569 doubly unsafe triple-checked locking.
571 So now fix this for real by retiring the MONT_HELPER macro
572 in crypto/rsa/rsa_eay.c.
574 [Bodo Moeller; problem pointed out by Marius Schilder]
576 *) Various precautionary measures:
578 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
580 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
581 (NB: This would require knowledge of the secret session ticket key
582 to exploit, in which case you'd be SOL either way.)
584 - Change bn_nist.c so that it will properly handle input BIGNUMs
585 outside the expected range.
587 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
590 [Neel Mehta, Bodo Moeller]
592 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
593 the load fails. Useful for distros.
594 [Ben Laurie and the FreeBSD team]
596 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
599 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
602 *) Expand ENGINE to support engine supplied SSL client certificate functions.
604 This work was sponsored by Logica.
607 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
608 keystores. Support for SSL/TLS client authentication too.
609 Not compiled unless enable-capieng specified to Configure.
611 This work was sponsored by Logica.
614 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
615 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
616 attribute creation routines such as certifcate requests and PKCS#12
620 Changes between 0.9.8g and 0.9.8h [28 May 2008]
622 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
623 handshake which could lead to a cilent crash as found using the
624 Codenomicon TLS test suite (CVE-2008-1672)
625 [Steve Henson, Mark Cox]
627 *) Fix double free in TLS server name extensions which could lead to
628 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
631 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
633 Clear the error queue to ensure that error entries left from
634 older function calls do not interfere with the correct operation.
635 [Lutz Jaenicke, Erik de Castro Lopo]
637 *) Remove root CA certificates of commercial CAs:
639 The OpenSSL project does not recommend any specific CA and does not
640 have any policy with respect to including or excluding any CA.
641 Therefore it does not make any sense to ship an arbitrary selection
642 of root CA certificates with the OpenSSL software.
645 *) RSA OAEP patches to fix two separate invalid memory reads.
646 The first one involves inputs when 'lzero' is greater than
647 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
648 before the beginning of from). The second one involves inputs where
649 the 'db' section contains nothing but zeroes (there is a one-byte
650 invalid read after the end of 'db').
651 [Ivan Nestlerode <inestlerode@us.ibm.com>]
653 *) Partial backport from 0.9.9-dev:
655 Introduce bn_mul_mont (dedicated Montgomery multiplication
656 procedure) as a candidate for BIGNUM assembler implementation.
657 While 0.9.9-dev uses assembler for various architectures, only
658 x86_64 is available by default here in the 0.9.8 branch, and
659 32-bit x86 is available through a compile-time setting.
661 To try the 32-bit x86 assembler implementation, use Configure
662 option "enable-montasm" (which exists only for this backport).
664 As "enable-montasm" for 32-bit x86 disclaims code stability
665 anyway, in this constellation we activate additional code
666 backported from 0.9.9-dev for further performance improvements,
667 namely BN_from_montgomery_word. (To enable this otherwise,
668 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
670 [Andy Polyakov (backport partially by Bodo Moeller)]
672 *) Add TLS session ticket callback. This allows an application to set
673 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
674 values. This is useful for key rollover for example where several key
675 sets may exist with different names.
678 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
679 This was broken until now in 0.9.8 releases, such that the only way
680 a registered ENGINE could be used (assuming it initialises
681 successfully on the host) was to explicitly set it as the default
682 for the relevant algorithms. This is in contradiction with 0.9.7
683 behaviour and the documentation. With this fix, when an ENGINE is
684 registered into a given algorithm's table of implementations, the
685 'uptodate' flag is reset so that auto-discovery will be used next
686 time a new context for that algorithm attempts to select an
688 [Ian Lister (tweaked by Geoff Thorpe)]
690 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
691 implemention in the following ways:
693 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
696 Lack of BER streaming support means one pass streaming processing is
697 only supported if data is detached: setting the streaming flag is
698 ignored for embedded content.
700 CMS support is disabled by default and must be explicitly enabled
701 with the enable-cms configuration option.
704 *) Update the GMP engine glue to do direct copies between BIGNUM and
705 mpz_t when openssl and GMP use the same limb size. Otherwise the
706 existing "conversion via a text string export" trick is still used.
707 [Paul Sheer <paulsheer@gmail.com>]
709 *) Zlib compression BIO. This is a filter BIO which compressed and
710 uncompresses any data passed through it.
713 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
714 RFC3394 compatible AES key wrapping.
717 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
718 sets string data without copying. X509_ALGOR_set0() and
719 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
720 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
721 from an X509_ATTRIBUTE structure optionally checking it occurs only
722 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
726 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
727 to get the expected BN_FLG_CONSTTIME behavior.
728 [Bodo Moeller (Google)]
732 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
733 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
734 - added some more tests to do_tests.pl
735 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
736 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
737 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
738 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
739 - various changes to netware.pl to enable gcc-cross builds on Win32
741 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
742 - various changes to fix missing prototype warnings
743 - fixed x86nasm.pl to create correct asm files for NASM COFF output
744 - added AES, WHIRLPOOL and CPUID assembler code to build files
745 - added missing AES assembler make rules to mk1mf.pl
746 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
747 [Guenter Knauf <eflash@gmx.net>]
749 *) Implement certificate status request TLS extension defined in RFC3546.
750 A client can set the appropriate parameters and receive the encoded
751 OCSP response via a callback. A server can query the supplied parameters
752 and set the encoded OCSP response in the callback. Add simplified examples
753 to s_client and s_server.
756 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
759 + Binary incompatibility of ssl_ctx_st structure
760 + DTLS interoperation with non-compliant servers
761 + Don't call get_session_cb() without proposed session
762 + Fix ia64 assembler code
763 [Andy Polyakov, Steve Henson]
765 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
767 *) DTLS Handshake overhaul. There were longstanding issues with
768 OpenSSL DTLS implementation, which were making it impossible for
769 RFC 4347 compliant client to communicate with OpenSSL server.
770 Unfortunately just fixing these incompatibilities would "cut off"
771 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
772 server keeps tolerating non RFC compliant syntax. The opposite is
773 not true, 0.9.8f client can not communicate with earlier server.
774 This update even addresses CVE-2007-4995.
777 *) Changes to avoid need for function casts in OpenSSL: some compilers
778 (gcc 4.2 and later) reject their use.
779 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
782 *) Add RFC4507 support to OpenSSL. This includes the corrections in
783 RFC4507bis. The encrypted ticket format is an encrypted encoded
784 SSL_SESSION structure, that way new session features are automatically
787 If a client application caches session in an SSL_SESSION structure
788 support is transparent because tickets are now stored in the encoded
791 The SSL_CTX structure automatically generates keys for ticket
792 protection in servers so again support should be possible
793 with no application modification.
795 If a client or server wishes to disable RFC4507 support then the option
796 SSL_OP_NO_TICKET can be set.
798 Add a TLS extension debugging callback to allow the contents of any client
799 or server extensions to be examined.
801 This work was sponsored by Google.
804 *) Add initial support for TLS extensions, specifically for the server_name
805 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
806 have new members for a host name. The SSL data structure has an
807 additional member SSL_CTX *initial_ctx so that new sessions can be
808 stored in that context to allow for session resumption, even after the
809 SSL has been switched to a new SSL_CTX in reaction to a client's
810 server_name extension.
812 New functions (subject to change):
815 SSL_get_servername_type()
818 New CTRL codes and macros (subject to change):
820 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
821 - SSL_CTX_set_tlsext_servername_callback()
822 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
823 - SSL_CTX_set_tlsext_servername_arg()
824 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
826 openssl s_client has a new '-servername ...' option.
828 openssl s_server has new options '-servername_host ...', '-cert2 ...',
829 '-key2 ...', '-servername_fatal' (subject to change). This allows
830 testing the HostName extension for a specific single host name ('-cert'
831 and '-key' remain fallbacks for handshakes without HostName
832 negotiation). If the unrecogninzed_name alert has to be sent, this by
833 default is a warning; it becomes fatal with the '-servername_fatal'
836 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
838 *) Add AES and SSE2 assembly language support to VC++ build.
841 *) Mitigate attack on final subtraction in Montgomery reduction.
844 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
845 (which previously caused an internal error).
848 *) Squeeze another 10% out of IGE mode when in != out.
851 *) AES IGE mode speedup.
852 [Dean Gaudet (Google)]
854 *) Add the Korean symmetric 128-bit cipher SEED (see
855 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
856 add SEED ciphersuites from RFC 4162:
858 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
859 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
860 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
861 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
863 To minimize changes between patchlevels in the OpenSSL 0.9.8
864 series, SEED remains excluded from compilation unless OpenSSL
865 is configured with 'enable-seed'.
868 *) Mitigate branch prediction attacks, which can be practical if a
869 single processor is shared, allowing a spy process to extract
870 information. For detailed background information, see
871 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
872 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
873 and Necessary Software Countermeasures"). The core of the change
874 are new versions BN_div_no_branch() and
875 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
876 respectively, which are slower, but avoid the security-relevant
877 conditional branches. These are automatically called by BN_div()
878 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
879 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
880 remove a conditional branch.
882 BN_FLG_CONSTTIME is the new name for the previous
883 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
884 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
885 in the exponent causes BN_mod_exp_mont() to use the alternative
886 implementation in BN_mod_exp_mont_consttime().) The old name
887 remains as a deprecated alias.
889 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
890 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
891 constant-time implementations for more than just exponentiation.
892 Here too the old name is kept as a deprecated alias.
894 BN_BLINDING_new() will now use BN_dup() for the modulus so that
895 the BN_BLINDING structure gets an independent copy of the
896 modulus. This means that the previous "BIGNUM *m" argument to
897 BN_BLINDING_new() and to BN_BLINDING_create_param() now
898 essentially becomes "const BIGNUM *m", although we can't actually
899 change this in the header file before 0.9.9. It allows
900 RSA_setup_blinding() to use BN_with_flags() on the modulus to
901 enable BN_FLG_CONSTTIME.
903 [Matthew D Wood (Intel Corp)]
905 *) In the SSL/TLS server implementation, be strict about session ID
906 context matching (which matters if an application uses a single
907 external cache for different purposes). Previously,
908 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
909 set. This did ensure strict client verification, but meant that,
910 with applications using a single external cache for quite
911 different requirements, clients could circumvent ciphersuite
912 restrictions for a given session ID context by starting a session
913 in a different context.
916 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
917 a ciphersuite string such as "DEFAULT:RSA" cannot enable
918 authentication-only ciphersuites.
921 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
922 not complete and could lead to a possible single byte overflow
923 (CVE-2007-5135) [Ben Laurie]
925 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
927 *) Since AES128 and AES256 (and similarly Camellia128 and
928 Camellia256) share a single mask bit in the logic of
929 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
930 kludge to work properly if AES128 is available and AES256 isn't
931 (or if Camellia128 is available and Camellia256 isn't).
934 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
935 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
936 When a point or a seed is encoded in a BIT STRING, we need to
937 prevent the removal of trailing zero bits to get the proper DER
938 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
939 of a NamedBitList, for which trailing 0 bits need to be removed.)
942 *) Have SSL/TLS server implementation tolerate "mismatched" record
943 protocol version while receiving ClientHello even if the
944 ClientHello is fragmented. (The server can't insist on the
945 particular protocol version it has chosen before the ServerHello
946 message has informed the client about his choice.)
949 *) Add RFC 3779 support.
950 [Rob Austein for ARIN, Ben Laurie]
952 *) Load error codes if they are not already present instead of using a
953 static variable. This allows them to be cleanly unloaded and reloaded.
954 Improve header file function name parsing.
957 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
958 or CAPABILITY handshake as required by RFCs.
961 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
963 *) Introduce limits to prevent malicious keys being able to
964 cause a denial of service. (CVE-2006-2940)
965 [Steve Henson, Bodo Moeller]
967 *) Fix ASN.1 parsing of certain invalid structures that can result
968 in a denial of service. (CVE-2006-2937) [Steve Henson]
970 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
971 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
973 *) Fix SSL client code which could crash if connecting to a
974 malicious SSLv2 server. (CVE-2006-4343)
975 [Tavis Ormandy and Will Drewry, Google Security Team]
977 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
978 match only those. Before that, "AES256-SHA" would be interpreted
979 as a pattern and match "AES128-SHA" too (since AES128-SHA got
980 the same strength classification in 0.9.7h) as we currently only
981 have a single AES bit in the ciphersuite description bitmap.
982 That change, however, also applied to ciphersuite strings such as
983 "RC4-MD5" that intentionally matched multiple ciphersuites --
984 namely, SSL 2.0 ciphersuites in addition to the more common ones
985 from SSL 3.0/TLS 1.0.
987 So we change the selection algorithm again: Naming an explicit
988 ciphersuite selects this one ciphersuite, and any other similar
989 ciphersuite (same bitmap) from *other* protocol versions.
990 Thus, "RC4-MD5" again will properly select both the SSL 2.0
991 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
993 Since SSL 2.0 does not have any ciphersuites for which the
994 128/256 bit distinction would be relevant, this works for now.
995 The proper fix will be to use different bits for AES128 and
996 AES256, which would have avoided the problems from the beginning;
997 however, bits are scarce, so we can only do this in a new release
998 (not just a patchlevel) when we can change the SSL_CIPHER
999 definition to split the single 'unsigned long mask' bitmap into
1000 multiple values to extend the available space.
1004 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
1006 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1007 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1009 *) Add AES IGE and biIGE modes.
1012 *) Change the Unix randomness entropy gathering to use poll() when
1013 possible instead of select(), since the latter has some
1014 undesirable limitations.
1015 [Darryl Miles via Richard Levitte and Bodo Moeller]
1017 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
1018 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
1019 cannot be implicitly activated as part of, e.g., the "AES" alias.
1020 However, please upgrade to OpenSSL 0.9.9[-dev] for
1021 non-experimental use of the ECC ciphersuites to get TLS extension
1022 support, which is required for curve and point format negotiation
1023 to avoid potential handshake problems.
1026 *) Disable rogue ciphersuites:
1028 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1029 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1030 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1032 The latter two were purportedly from
1033 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1036 Also deactivate the remaining ciphersuites from
1037 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1038 unofficial, and the ID has long expired.
1041 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1042 dual-core machines) and other potential thread-safety issues.
1045 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
1046 versions), which is now available for royalty-free use
1047 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
1048 Also, add Camellia TLS ciphersuites from RFC 4132.
1050 To minimize changes between patchlevels in the OpenSSL 0.9.8
1051 series, Camellia remains excluded from compilation unless OpenSSL
1052 is configured with 'enable-camellia'.
1055 *) Disable the padding bug check when compression is in use. The padding
1056 bug check assumes the first packet is of even length, this is not
1057 necessarily true if compresssion is enabled and can result in false
1058 positives causing handshake failure. The actual bug test is ancient
1059 code so it is hoped that implementations will either have fixed it by
1060 now or any which still have the bug do not support compression.
1063 Changes between 0.9.8a and 0.9.8b [04 May 2006]
1065 *) When applying a cipher rule check to see if string match is an explicit
1066 cipher suite and only match that one cipher suite if it is.
1069 *) Link in manifests for VC++ if needed.
1070 [Austin Ziegler <halostatue@gmail.com>]
1072 *) Update support for ECC-based TLS ciphersuites according to
1073 draft-ietf-tls-ecc-12.txt with proposed changes (but without
1074 TLS extensions, which are supported starting with the 0.9.9
1075 branch, not in the OpenSSL 0.9.8 branch).
1078 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
1079 opaque EVP_CIPHER_CTX handling.
1082 *) Fixes and enhancements to zlib compression code. We now only use
1083 "zlib1.dll" and use the default __cdecl calling convention on Win32
1084 to conform with the standards mentioned here:
1085 http://www.zlib.net/DLL_FAQ.txt
1086 Static zlib linking now works on Windows and the new --with-zlib-include
1087 --with-zlib-lib options to Configure can be used to supply the location
1088 of the headers and library. Gracefully handle case where zlib library
1092 *) Several fixes and enhancements to the OID generation code. The old code
1093 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
1094 handle numbers larger than ULONG_MAX, truncated printing and had a
1095 non standard OBJ_obj2txt() behaviour.
1098 *) Add support for building of engines under engine/ as shared libraries
1099 under VC++ build system.
1102 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
1103 Hopefully, we will not see any false combination of paths any more.
1106 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
1108 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1109 (part of SSL_OP_ALL). This option used to disable the
1110 countermeasure against man-in-the-middle protocol-version
1111 rollback in the SSL 2.0 server implementation, which is a bad
1112 idea. (CVE-2005-2969)
1114 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1115 for Information Security, National Institute of Advanced Industrial
1116 Science and Technology [AIST], Japan)]
1118 *) Add two function to clear and return the verify parameter flags.
1121 *) Keep cipherlists sorted in the source instead of sorting them at
1122 runtime, thus removing the need for a lock.
1125 *) Avoid some small subgroup attacks in Diffie-Hellman.
1126 [Nick Mathewson and Ben Laurie]
1128 *) Add functions for well-known primes.
1131 *) Extended Windows CE support.
1132 [Satoshi Nakamura and Andy Polyakov]
1134 *) Initialize SSL_METHOD structures at compile time instead of during
1135 runtime, thus removing the need for a lock.
1138 *) Make PKCS7_decrypt() work even if no certificate is supplied by
1139 attempting to decrypt each encrypted key in turn. Add support to
1143 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
1145 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
1148 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
1151 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
1152 key into the same file any more.
1155 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
1158 *) Add -utf8 command line and config file option to 'ca'.
1159 [Stefan <stf@udoma.org]
1161 *) Removed the macro des_crypt(), as it seems to conflict with some
1162 libraries. Use DES_crypt().
1165 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
1166 involves renaming the source and generated shared-libs for
1167 both. The engines will accept the corrected or legacy ids
1168 ('ncipher' and '4758_cca' respectively) when binding. NB,
1169 this only applies when building 'shared'.
1170 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
1172 *) Add attribute functions to EVP_PKEY structure. Modify
1173 PKCS12_create() to recognize a CSP name attribute and
1174 use it. Make -CSP option work again in pkcs12 utility.
1177 *) Add new functionality to the bn blinding code:
1178 - automatic re-creation of the BN_BLINDING parameters after
1179 a fixed number of uses (currently 32)
1180 - add new function for parameter creation
1181 - introduce flags to control the update behaviour of the
1182 BN_BLINDING parameters
1183 - hide BN_BLINDING structure
1184 Add a second BN_BLINDING slot to the RSA structure to improve
1185 performance when a single RSA object is shared among several
1189 *) Add support for DTLS.
1190 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
1192 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
1193 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
1196 *) Remove buggy and incompletet DH cert support from
1197 ssl/ssl_rsa.c and ssl/s3_both.c
1200 *) Use SHA-1 instead of MD5 as the default digest algorithm for
1201 the apps/openssl applications.
1204 *) Compile clean with "-Wall -Wmissing-prototypes
1205 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
1206 DEBUG_SAFESTACK must also be set.
1209 *) Change ./Configure so that certain algorithms can be disabled by default.
1210 The new counterpiece to "no-xxx" is "enable-xxx".
1212 The patented RC5 and MDC2 algorithms will now be disabled unless
1213 "enable-rc5" and "enable-mdc2", respectively, are specified.
1215 (IDEA remains enabled despite being patented. This is because IDEA
1216 is frequently required for interoperability, and there is no license
1217 fee for non-commercial use. As before, "no-idea" can be used to
1218 avoid this algorithm.)
1222 *) Add processing of proxy certificates (see RFC 3820). This work was
1223 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
1224 EGEE (Enabling Grids for E-science in Europe).
1227 *) RC4 performance overhaul on modern architectures/implementations, such
1228 as Intel P4, IA-64 and AMD64.
1231 *) New utility extract-section.pl. This can be used specify an alternative
1232 section number in a pod file instead of having to treat each file as
1233 a separate case in Makefile. This can be done by adding two lines to the
1236 =for comment openssl_section:XXX
1238 The blank line is mandatory.
1242 *) New arguments -certform, -keyform and -pass for s_client and s_server
1243 to allow alternative format key and certificate files and passphrase
1247 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
1248 update associated structures and add various utility functions.
1250 Add new policy related verify parameters, include policy checking in
1251 standard verify code. Enhance 'smime' application with extra parameters
1252 to support policy checking and print out.
1255 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
1256 Nehemiah processors. These extensions support AES encryption in hardware
1257 as well as RNG (though RNG support is currently disabled).
1258 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
1260 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
1263 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
1264 [Andy Polyakov and a number of other people]
1266 *) Improved PowerPC platform support. Most notably BIGNUM assembler
1267 implementation contributed by IBM.
1268 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
1270 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
1271 exponent rather than 'unsigned long'. There is a corresponding change to
1272 the new 'rsa_keygen' element of the RSA_METHOD structure.
1273 [Jelte Jansen, Geoff Thorpe]
1275 *) Functionality for creating the initial serial number file is now
1276 moved from CA.pl to the 'ca' utility with a new option -create_serial.
1278 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
1279 number file to 1, which is bound to cause problems. To avoid
1280 the problems while respecting compatibility between different 0.9.7
1281 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
1282 CA.pl for serial number initialization. With the new release 0.9.8,
1283 we can fix the problem directly in the 'ca' utility.)
1286 *) Reduced header interdepencies by declaring more opaque objects in
1287 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
1288 give fewer recursive includes, which could break lazy source code - so
1289 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
1290 developers should define this symbol when building and using openssl to
1291 ensure they track the recommended behaviour, interfaces, [etc], but
1292 backwards-compatible behaviour prevails when this isn't defined.
1295 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
1298 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
1299 This will generate a random key of the appropriate length based on the
1300 cipher context. The EVP_CIPHER can provide its own random key generation
1301 routine to support keys of a specific form. This is used in the des and
1302 3des routines to generate a key of the correct parity. Update S/MIME
1303 code to use new functions and hence generate correct parity DES keys.
1304 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
1305 valid (weak or incorrect parity).
1308 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
1309 as looking them up. This is useful when the verified structure may contain
1310 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
1311 present unless the new PKCS7_NO_CRL flag is asserted.
1314 *) Extend ASN1 oid configuration module. It now additionally accepts the
1317 shortName = some long name, 1.2.3.4
1320 *) Reimplemented the BN_CTX implementation. There is now no more static
1321 limitation on the number of variables it can handle nor the depth of the
1322 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
1323 information can now expand as required, and rather than having a single
1324 static array of bignums, BN_CTX now uses a linked-list of such arrays
1325 allowing it to expand on demand whilst maintaining the usefulness of
1326 BN_CTX's "bundling".
1329 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
1330 to allow all RSA operations to function using a single BN_CTX.
1333 *) Preliminary support for certificate policy evaluation and checking. This
1334 is initially intended to pass the tests outlined in "Conformance Testing
1335 of Relying Party Client Certificate Path Processing Logic" v1.07.
1338 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
1339 remained unused and not that useful. A variety of other little bignum
1340 tweaks and fixes have also been made continuing on from the audit (see
1344 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
1345 associated ASN1, EVP and SSL functions and old ASN1 macros.
1348 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
1349 and this should never fail. So the return value from the use of
1350 BN_set_word() (which can fail due to needless expansion) is now deprecated;
1351 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
1354 *) BN_CTX_get() should return zero-valued bignums, providing the same
1355 initialised value as BN_new().
1356 [Geoff Thorpe, suggested by Ulf Möller]
1358 *) Support for inhibitAnyPolicy certificate extension.
1361 *) An audit of the BIGNUM code is underway, for which debugging code is
1362 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
1363 is considered valid when processing BIGNUMs, and causes execution to
1364 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
1365 further steps are taken to deliberately pollute unused data in BIGNUM
1366 structures to try and expose faulty code further on. For now, openssl will
1367 (in its default mode of operation) continue to tolerate the inconsistent
1368 forms that it has tolerated in the past, but authors and packagers should
1369 consider trying openssl and their own applications when compiled with
1370 these debugging symbols defined. It will help highlight potential bugs in
1371 their own code, and will improve the test coverage for OpenSSL itself. At
1372 some point, these tighter rules will become openssl's default to improve
1373 maintainability, though the assert()s and other overheads will remain only
1374 in debugging configurations. See bn.h for more details.
1375 [Geoff Thorpe, Nils Larsch, Ulf Möller]
1377 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
1378 that can only be obtained through BN_CTX_new() (which implicitly
1379 initialises it). The presence of this function only made it possible
1380 to overwrite an existing structure (and cause memory leaks).
1383 *) Because of the callback-based approach for implementing LHASH as a
1384 template type, lh_insert() adds opaque objects to hash-tables and
1385 lh_doall() or lh_doall_arg() are typically used with a destructor callback
1386 to clean up those corresponding objects before destroying the hash table
1387 (and losing the object pointers). So some over-zealous constifications in
1388 LHASH have been relaxed so that lh_insert() does not take (nor store) the
1389 objects as "const" and the lh_doall[_arg] callback wrappers are not
1390 prototyped to have "const" restrictions on the object pointers they are
1391 given (and so aren't required to cast them away any more).
1394 *) The tmdiff.h API was so ugly and minimal that our own timing utility
1395 (speed) prefers to use its own implementation. The two implementations
1396 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
1397 its object type properly exposed (MS_TM) instead of casting to/from "char
1398 *". This may still change yet if someone realises MS_TM and "ms_time_***"
1399 aren't necessarily the greatest nomenclatures - but this is what was used
1400 internally to the implementation so I've used that for now.
1403 *) Ensure that deprecated functions do not get compiled when
1404 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
1405 the self-tests were still using deprecated key-generation functions so
1406 these have been updated also.
1409 *) Reorganise PKCS#7 code to separate the digest location functionality
1410 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
1411 New function PKCS7_set_digest() to set the digest type for PKCS#7
1412 digestedData type. Add additional code to correctly generate the
1413 digestedData type and add support for this type in PKCS7 initialization
1417 *) New function PKCS7_set0_type_other() this initializes a PKCS7
1418 structure of type "other".
1421 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
1422 sure the loop does correctly stop and breaking ("division by zero")
1423 modulus operations are not performed. The (pre-generated) prime
1424 table crypto/bn/bn_prime.h was already correct, but it could not be
1425 re-generated on some platforms because of the "division by zero"
1426 situation in the script.
1427 [Ralf S. Engelschall]
1429 *) Update support for ECC-based TLS ciphersuites according to
1430 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
1431 SHA-1 now is only used for "small" curves (where the
1432 representation of a field element takes up to 24 bytes); for
1433 larger curves, the field element resulting from ECDH is directly
1434 used as premaster secret.
1435 [Douglas Stebila (Sun Microsystems Laboratories)]
1437 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
1438 curve secp160r1 to the tests.
1439 [Douglas Stebila (Sun Microsystems Laboratories)]
1441 *) Add the possibility to load symbols globally with DSO.
1442 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
1444 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
1445 control of the error stack.
1448 *) Add support for STORE in ENGINE.
1451 *) Add the STORE type. The intention is to provide a common interface
1452 to certificate and key stores, be they simple file-based stores, or
1453 HSM-type store, or LDAP stores, or...
1454 NOTE: The code is currently UNTESTED and isn't really used anywhere.
1457 *) Add a generic structure called OPENSSL_ITEM. This can be used to
1458 pass a list of arguments to any function as well as provide a way
1459 for a function to pass data back to the caller.
1462 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
1463 works like BUF_strdup() but can be used to duplicate a portion of
1464 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
1468 *) Add the function sk_find_ex() which works like sk_find(), but will
1469 return an index to an element even if an exact match couldn't be
1470 found. The index is guaranteed to point at the element where the
1471 searched-for key would be inserted to preserve sorting order.
1474 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
1475 takes an extra flags argument for optional functionality. Currently,
1476 the following flags are defined:
1478 OBJ_BSEARCH_VALUE_ON_NOMATCH
1479 This one gets OBJ_bsearch_ex() to return a pointer to the first
1480 element where the comparing function returns a negative or zero
1483 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
1484 This one gets OBJ_bsearch_ex() to return a pointer to the first
1485 element where the comparing function returns zero. This is useful
1486 if there are more than one element where the comparing function
1490 *) Make it possible to create self-signed certificates with 'openssl ca'
1491 in such a way that the self-signed certificate becomes part of the
1492 CA database and uses the same mechanisms for serial number generation
1493 as all other certificate signing. The new flag '-selfsign' enables
1494 this functionality. Adapt CA.sh and CA.pl.in.
1497 *) Add functionality to check the public key of a certificate request
1498 against a given private. This is useful to check that a certificate
1499 request can be signed by that key (self-signing).
1502 *) Make it possible to have multiple active certificates with the same
1503 subject in the CA index file. This is done only if the keyword
1504 'unique_subject' is set to 'no' in the main CA section (default
1505 if 'CA_default') of the configuration file. The value is saved
1506 with the database itself in a separate index attribute file,
1507 named like the index file with '.attr' appended to the name.
1510 *) Generate muti valued AVAs using '+' notation in config files for
1514 *) Support for nameConstraints certificate extension.
1517 *) Support for policyConstraints certificate extension.
1520 *) Support for policyMappings certificate extension.
1523 *) Make sure the default DSA_METHOD implementation only uses its
1524 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
1525 and change its own handlers to be NULL so as to remove unnecessary
1526 indirection. This lets alternative implementations fallback to the
1527 default implementation more easily.
1530 *) Support for directoryName in GeneralName related extensions
1534 *) Make it possible to link applications using Makefile.shared.
1535 Make that possible even when linking against static libraries!
1538 *) Support for single pass processing for S/MIME signing. This now
1539 means that S/MIME signing can be done from a pipe, in addition
1540 cleartext signing (multipart/signed type) is effectively streaming
1541 and the signed data does not need to be all held in memory.
1543 This is done with a new flag PKCS7_STREAM. When this flag is set
1544 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
1545 is done after the data is output (and digests calculated) in
1546 SMIME_write_PKCS7().
1549 *) Add full support for -rpath/-R, both in shared libraries and
1550 applications, at least on the platforms where it's known how
1554 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
1555 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
1556 will now compute a table of multiples of the generator that
1557 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
1558 faster (notably in the case of a single point multiplication,
1559 scalar * generator).
1560 [Nils Larsch, Bodo Moeller]
1562 *) IPv6 support for certificate extensions. The various extensions
1563 which use the IP:a.b.c.d can now take IPv6 addresses using the
1564 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
1568 *) Added an ENGINE that implements RSA by performing private key
1569 exponentiations with the GMP library. The conversions to and from
1570 GMP's mpz_t format aren't optimised nor are any montgomery forms
1571 cached, and on x86 it appears OpenSSL's own performance has caught up.
1572 However there are likely to be other architectures where GMP could
1573 provide a boost. This ENGINE is not built in by default, but it can be
1574 specified at Configure time and should be accompanied by the necessary
1575 linker additions, eg;
1576 ./config -DOPENSSL_USE_GMP -lgmp
1579 *) "openssl engine" will not display ENGINE/DSO load failure errors when
1580 testing availability of engines with "-t" - the old behaviour is
1581 produced by increasing the feature's verbosity with "-tt".
1584 *) ECDSA routines: under certain error conditions uninitialized BN objects
1585 could be freed. Solution: make sure initialization is performed early
1586 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
1590 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
1591 and DH_METHOD (eg. by ENGINE implementations) to override the normal
1592 software implementations. For DSA and DH, parameter generation can
1593 also be overriden by providing the appropriate method callbacks.
1596 *) Change the "progress" mechanism used in key-generation and
1597 primality testing to functions that take a new BN_GENCB pointer in
1598 place of callback/argument pairs. The new API functions have "_ex"
1599 postfixes and the older functions are reimplemented as wrappers for
1600 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
1601 declarations of the old functions to help (graceful) attempts to
1602 migrate to the new functions. Also, the new key-generation API
1603 functions operate on a caller-supplied key-structure and return
1604 success/failure rather than returning a key or NULL - this is to
1605 help make "keygen" another member function of RSA_METHOD etc.
1607 Example for using the new callback interface:
1609 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
1613 BN_GENCB_set(&my_cb, my_callback, my_arg);
1615 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
1616 /* For the meaning of a, b in calls to my_callback(), see the
1617 * documentation of the function that calls the callback.
1618 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
1619 * my_callback should return 1 if it wants BN_is_prime_ex()
1620 * to continue, or 0 to stop.
1625 *) Change the ZLIB compression method to be stateful, and make it
1626 available to TLS with the number defined in
1627 draft-ietf-tls-compression-04.txt.
1630 *) Add the ASN.1 structures and functions for CertificatePair, which
1631 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
1633 CertificatePair ::= SEQUENCE {
1634 forward [0] Certificate OPTIONAL,
1635 reverse [1] Certificate OPTIONAL,
1636 -- at least one of the pair shall be present -- }
1638 Also implement the PEM functions to read and write certificate
1639 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
1641 This needed to be defined, mostly for the sake of the LDAP
1642 attribute crossCertificatePair, but may prove useful elsewhere as
1646 *) Make it possible to inhibit symlinking of shared libraries in
1647 Makefile.shared, for Cygwin's sake.
1650 *) Extend the BIGNUM API by creating a function
1651 void BN_set_negative(BIGNUM *a, int neg);
1652 and a macro that behave like
1653 int BN_is_negative(const BIGNUM *a);
1655 to avoid the need to access 'a->neg' directly in applications.
1658 *) Implement fast modular reduction for pseudo-Mersenne primes
1659 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
1660 EC_GROUP_new_curve_GFp() will now automatically use this
1662 [Nils Larsch <nla@trustcenter.de>]
1664 *) Add new lock type (CRYPTO_LOCK_BN).
1667 *) Change the ENGINE framework to automatically load engines
1668 dynamically from specific directories unless they could be
1669 found to already be built in or loaded. Move all the
1670 current engines except for the cryptodev one to a new
1672 The engines in engines/ are built as shared libraries if
1673 the "shared" options was given to ./Configure or ./config.
1674 Otherwise, they are inserted in libcrypto.a.
1675 /usr/local/ssl/engines is the default directory for dynamic
1676 engines, but that can be overriden at configure time through
1677 the usual use of --prefix and/or --openssldir, and at run
1678 time with the environment variable OPENSSL_ENGINES.
1679 [Geoff Thorpe and Richard Levitte]
1681 *) Add Makefile.shared, a helper makefile to build shared
1682 libraries. Addapt Makefile.org.
1685 *) Add version info to Win32 DLLs.
1686 [Peter 'Luna' Runestig" <peter@runestig.com>]
1688 *) Add new 'medium level' PKCS#12 API. Certificates and keys
1689 can be added using this API to created arbitrary PKCS#12
1690 files while avoiding the low level API.
1692 New options to PKCS12_create(), key or cert can be NULL and
1693 will then be omitted from the output file. The encryption
1694 algorithm NIDs can be set to -1 for no encryption, the mac
1695 iteration count can be set to 0 to omit the mac.
1697 Enhance pkcs12 utility by making the -nokeys and -nocerts
1698 options work when creating a PKCS#12 file. New option -nomac
1699 to omit the mac, NONE can be set for an encryption algorithm.
1700 New code is modified to use the enhanced PKCS12_create()
1701 instead of the low level API.
1704 *) Extend ASN1 encoder to support indefinite length constructed
1705 encoding. This can output sequences tags and octet strings in
1706 this form. Modify pk7_asn1.c to support indefinite length
1707 encoding. This is experimental and needs additional code to
1708 be useful, such as an ASN1 bio and some enhanced streaming
1711 Extend template encode functionality so that tagging is passed
1712 down to the template encoder.
1715 *) Let 'openssl req' fail if an argument to '-newkey' is not
1716 recognized instead of using RSA as a default.
1719 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
1720 As these are not official, they are not included in "ALL";
1721 the "ECCdraft" ciphersuite group alias can be used to select them.
1722 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
1724 *) Add ECDH engine support.
1725 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
1727 *) Add ECDH in new directory crypto/ecdh/.
1728 [Douglas Stebila (Sun Microsystems Laboratories)]
1730 *) Let BN_rand_range() abort with an error after 100 iterations
1731 without success (which indicates a broken PRNG).
1734 *) Change BN_mod_sqrt() so that it verifies that the input value
1735 is really the square of the return value. (Previously,
1736 BN_mod_sqrt would show GIGO behaviour.)
1739 *) Add named elliptic curves over binary fields from X9.62, SECG,
1740 and WAP/WTLS; add OIDs that were still missing.
1742 [Sheueling Chang Shantz and Douglas Stebila
1743 (Sun Microsystems Laboratories)]
1745 *) Extend the EC library for elliptic curves over binary fields
1746 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
1749 EC_GF2m_simple_method
1753 EC_GROUP_new_curve_GF2m
1754 EC_GROUP_set_curve_GF2m
1755 EC_GROUP_get_curve_GF2m
1756 EC_POINT_set_affine_coordinates_GF2m
1757 EC_POINT_get_affine_coordinates_GF2m
1758 EC_POINT_set_compressed_coordinates_GF2m
1760 Point compression for binary fields is disabled by default for
1761 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
1764 As binary polynomials are represented as BIGNUMs, various members
1765 of the EC_GROUP and EC_POINT data structures can be shared
1766 between the implementations for prime fields and binary fields;
1767 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
1768 are essentially identical to their ..._GFp counterparts.
1769 (For simplicity, the '..._GFp' prefix has been dropped from
1770 various internal method names.)
1772 An internal 'field_div' method (similar to 'field_mul' and
1773 'field_sqr') has been added; this is used only for binary fields.
1775 [Sheueling Chang Shantz and Douglas Stebila
1776 (Sun Microsystems Laboratories)]
1778 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
1779 through methods ('mul', 'precompute_mult').
1781 The generic implementations (now internally called 'ec_wNAF_mul'
1782 and 'ec_wNAF_precomputed_mult') remain the default if these
1783 methods are undefined.
1785 [Sheueling Chang Shantz and Douglas Stebila
1786 (Sun Microsystems Laboratories)]
1788 *) New function EC_GROUP_get_degree, which is defined through
1789 EC_METHOD. For curves over prime fields, this returns the bit
1790 length of the modulus.
1792 [Sheueling Chang Shantz and Douglas Stebila
1793 (Sun Microsystems Laboratories)]
1795 *) New functions EC_GROUP_dup, EC_POINT_dup.
1796 (These simply call ..._new and ..._copy).
1798 [Sheueling Chang Shantz and Douglas Stebila
1799 (Sun Microsystems Laboratories)]
1801 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
1802 Polynomials are represented as BIGNUMs (where the sign bit is not
1803 used) in the following functions [macros]:
1806 BN_GF2m_sub [= BN_GF2m_add]
1807 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
1808 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
1809 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
1811 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
1812 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
1813 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
1814 BN_GF2m_cmp [= BN_ucmp]
1816 (Note that only the 'mod' functions are actually for fields GF(2^m).
1817 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
1819 For some functions, an the irreducible polynomial defining a
1820 field can be given as an 'unsigned int[]' with strictly
1821 decreasing elements giving the indices of those bits that are set;
1822 i.e., p[] represents the polynomial
1823 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
1825 p[0] > p[1] > ... > p[k] = 0.
1826 This applies to the following functions:
1831 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
1832 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
1834 BN_GF2m_mod_sqrt_arr
1835 BN_GF2m_mod_solve_quad_arr
1839 Conversion can be performed by the following functions:
1844 bntest.c has additional tests for binary polynomial arithmetic.
1846 Two implementations for BN_GF2m_mod_div() are available.
1847 The default algorithm simply uses BN_GF2m_mod_inv() and
1848 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
1849 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
1850 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
1852 [Sheueling Chang Shantz and Douglas Stebila
1853 (Sun Microsystems Laboratories)]
1855 *) Add new error code 'ERR_R_DISABLED' that can be used when some
1856 functionality is disabled at compile-time.
1857 [Douglas Stebila <douglas.stebila@sun.com>]
1859 *) Change default behaviour of 'openssl asn1parse' so that more
1860 information is visible when viewing, e.g., a certificate:
1862 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
1863 mode the content of non-printable OCTET STRINGs is output in a
1864 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
1865 avoid the appearance of a printable string.
1866 [Nils Larsch <nla@trustcenter.de>]
1868 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
1870 EC_GROUP_set_asn1_flag()
1871 EC_GROUP_get_asn1_flag()
1872 EC_GROUP_set_point_conversion_form()
1873 EC_GROUP_get_point_conversion_form()
1874 These control ASN1 encoding details:
1875 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
1876 has been set to OPENSSL_EC_NAMED_CURVE.
1877 - Points are encoded in uncompressed form by default; options for
1878 asn1_for are as for point2oct, namely
1879 POINT_CONVERSION_COMPRESSED
1880 POINT_CONVERSION_UNCOMPRESSED
1881 POINT_CONVERSION_HYBRID
1883 Also add 'seed' and 'seed_len' members to EC_GROUP with access
1886 EC_GROUP_get0_seed()
1887 EC_GROUP_get_seed_len()
1888 This is used only for ASN1 purposes (so far).
1889 [Nils Larsch <nla@trustcenter.de>]
1891 *) Add 'field_type' member to EC_METHOD, which holds the NID
1892 of the appropriate field type OID. The new function
1893 EC_METHOD_get_field_type() returns this value.
1894 [Nils Larsch <nla@trustcenter.de>]
1899 EC_POINT_point2hex()
1900 EC_POINT_hex2point()
1901 providing useful interfaces to EC_POINT_point2oct() and
1902 EC_POINT_oct2point().
1903 [Nils Larsch <nla@trustcenter.de>]
1905 *) Change internals of the EC library so that the functions
1906 EC_GROUP_set_generator()
1907 EC_GROUP_get_generator()
1908 EC_GROUP_get_order()
1909 EC_GROUP_get_cofactor()
1910 are implemented directly in crypto/ec/ec_lib.c and not dispatched
1911 to methods, which would lead to unnecessary code duplication when
1912 adding different types of curves.
1913 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
1915 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
1916 arithmetic, and such that modified wNAFs are generated
1917 (which avoid length expansion in many cases).
1920 *) Add a function EC_GROUP_check_discriminant() (defined via
1921 EC_METHOD) that verifies that the curve discriminant is non-zero.
1923 Add a function EC_GROUP_check() that makes some sanity tests
1924 on a EC_GROUP, its generator and order. This includes
1925 EC_GROUP_check_discriminant().
1926 [Nils Larsch <nla@trustcenter.de>]
1928 *) Add ECDSA in new directory crypto/ecdsa/.
1930 Add applications 'openssl ecparam' and 'openssl ecdsa'
1931 (these are based on 'openssl dsaparam' and 'openssl dsa').
1933 ECDSA support is also included in various other files across the
1934 library. Most notably,
1935 - 'openssl req' now has a '-newkey ecdsa:file' option;
1936 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
1937 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
1938 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
1939 them suitable for ECDSA where domain parameters must be
1940 extracted before the specific public key;
1941 - ECDSA engine support has been added.
1942 [Nils Larsch <nla@trustcenter.de>]
1944 *) Include some named elliptic curves, and add OIDs from X9.62,
1945 SECG, and WAP/WTLS. Each curve can be obtained from the new
1947 EC_GROUP_new_by_curve_name(),
1948 and the list of available named curves can be obtained with
1949 EC_get_builtin_curves().
1950 Also add a 'curve_name' member to EC_GROUP objects, which can be
1952 EC_GROUP_set_curve_name()
1953 EC_GROUP_get_curve_name()
1954 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
1956 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
1957 was actually never needed) and in BN_mul(). The removal in BN_mul()
1958 required a small change in bn_mul_part_recursive() and the addition
1959 of the functions bn_cmp_part_words(), bn_sub_part_words() and
1960 bn_add_part_words(), which do the same thing as bn_cmp_words(),
1961 bn_sub_words() and bn_add_words() except they take arrays with
1965 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
1967 *) Cleanse PEM buffers before freeing them since they may contain
1969 [Benjamin Bennett <ben@psc.edu>]
1971 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1972 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1973 authentication-only ciphersuites.
1976 *) Since AES128 and AES256 share a single mask bit in the logic of
1977 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1978 kludge to work properly if AES128 is available and AES256 isn't.
1981 *) Expand security boundary to match 1.1.1 module.
1984 *) Remove redundant features: hash file source, editing of test vectors
1985 modify fipsld to use external fips_premain.c signature.
1988 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
1989 run algorithm test programs.
1992 *) Make algorithm test programs more tolerant of whitespace.
1995 *) Have SSL/TLS server implementation tolerate "mismatched" record
1996 protocol version while receiving ClientHello even if the
1997 ClientHello is fragmented. (The server can't insist on the
1998 particular protocol version it has chosen before the ServerHello
1999 message has informed the client about his choice.)
2002 *) Load error codes if they are not already present instead of using a
2003 static variable. This allows them to be cleanly unloaded and reloaded.
2006 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
2008 *) Introduce limits to prevent malicious keys being able to
2009 cause a denial of service. (CVE-2006-2940)
2010 [Steve Henson, Bodo Moeller]
2012 *) Fix ASN.1 parsing of certain invalid structures that can result
2013 in a denial of service. (CVE-2006-2937) [Steve Henson]
2015 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2016 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2018 *) Fix SSL client code which could crash if connecting to a
2019 malicious SSLv2 server. (CVE-2006-4343)
2020 [Tavis Ormandy and Will Drewry, Google Security Team]
2022 *) Change ciphersuite string processing so that an explicit
2023 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
2024 will no longer include "AES128-SHA"), and any other similar
2025 ciphersuite (same bitmap) from *other* protocol versions (so that
2026 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
2027 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
2028 changes from 0.9.8b and 0.9.8d.
2031 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
2033 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2034 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2036 *) Change the Unix randomness entropy gathering to use poll() when
2037 possible instead of select(), since the latter has some
2038 undesirable limitations.
2039 [Darryl Miles via Richard Levitte and Bodo Moeller]
2041 *) Disable rogue ciphersuites:
2043 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2044 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2045 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2047 The latter two were purportedly from
2048 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2051 Also deactive the remaining ciphersuites from
2052 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2053 unofficial, and the ID has long expired.
2056 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2057 dual-core machines) and other potential thread-safety issues.
2060 Changes between 0.9.7i and 0.9.7j [04 May 2006]
2062 *) Adapt fipsld and the build system to link against the validated FIPS
2063 module in FIPS mode.
2066 *) Fixes for VC++ 2005 build under Windows.
2069 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
2070 from a Windows bash shell such as MSYS. It is autodetected from the
2071 "config" script when run from a VC++ environment. Modify standard VC++
2072 build to use fipscanister.o from the GNU make build.
2075 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
2077 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
2078 The value now differs depending on if you build for FIPS or not.
2079 BEWARE! A program linked with a shared FIPSed libcrypto can't be
2080 safely run with a non-FIPSed libcrypto, as it may crash because of
2081 the difference induced by this change.
2084 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
2086 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2087 (part of SSL_OP_ALL). This option used to disable the
2088 countermeasure against man-in-the-middle protocol-version
2089 rollback in the SSL 2.0 server implementation, which is a bad
2090 idea. (CVE-2005-2969)
2092 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2093 for Information Security, National Institute of Advanced Industrial
2094 Science and Technology [AIST], Japan)]
2096 *) Minimal support for X9.31 signatures and PSS padding modes. This is
2097 mainly for FIPS compliance and not fully integrated at this stage.
2100 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
2101 the exponentiation using a fixed-length exponent. (Otherwise,
2102 the information leaked through timing could expose the secret key
2103 after many signatures; cf. Bleichenbacher's attack on DSA with
2107 *) Make a new fixed-window mod_exp implementation the default for
2108 RSA, DSA, and DH private-key operations so that the sequence of
2109 squares and multiplies and the memory access pattern are
2110 independent of the particular secret key. This will mitigate
2111 cache-timing and potential related attacks.
2113 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
2114 and this is automatically used by BN_mod_exp_mont() if the new flag
2115 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
2116 will use this BN flag for private exponents unless the flag
2117 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
2118 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
2120 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
2122 *) Change the client implementation for SSLv23_method() and
2123 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
2124 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
2125 (Previously, the SSL 2.0 backwards compatible Client Hello
2126 message format would be used even with SSL_OP_NO_SSLv2.)
2129 *) Add support for smime-type MIME parameter in S/MIME messages which some
2133 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
2134 a threadsafe manner. Modify rsa code to use new function and add calls
2135 to dsa and dh code (which had race conditions before).
2138 *) Include the fixed error library code in the C error file definitions
2139 instead of fixing them up at runtime. This keeps the error code
2140 structures constant.
2143 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
2145 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
2148 *) Fixes for newer kerberos headers. NB: the casts are needed because
2149 the 'length' field is signed on one version and unsigned on another
2150 with no (?) obvious way to tell the difference, without these VC++
2151 complains. Also the "definition" of FAR (blank) is no longer included
2152 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
2153 some needed definitions.
2156 *) Undo Cygwin change.
2159 *) Added support for proxy certificates according to RFC 3820.
2160 Because they may be a security thread to unaware applications,
2161 they must be explicitely allowed in run-time. See
2162 docs/HOWTO/proxy_certificates.txt for further information.
2165 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
2167 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
2168 server and client random values. Previously
2169 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
2170 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
2172 This change has negligible security impact because:
2174 1. Server and client random values still have 24 bytes of pseudo random
2177 2. Server and client random values are sent in the clear in the initial
2180 3. The master secret is derived using the premaster secret (48 bytes in
2181 size for static RSA ciphersuites) as well as client server and random
2184 The OpenSSL team would like to thank the UK NISCC for bringing this issue
2187 [Stephen Henson, reported by UK NISCC]
2189 *) Use Windows randomness collection on Cygwin.
2192 *) Fix hang in EGD/PRNGD query when communication socket is closed
2193 prematurely by EGD/PRNGD.
2194 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
2196 *) Prompt for pass phrases when appropriate for PKCS12 input format.
2199 *) Back-port of selected performance improvements from development
2200 branch, as well as improved support for PowerPC platforms.
2203 *) Add lots of checks for memory allocation failure, error codes to indicate
2204 failure and freeing up memory if a failure occurs.
2205 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
2207 *) Add new -passin argument to dgst.
2210 *) Perform some character comparisons of different types in X509_NAME_cmp:
2211 this is needed for some certificates that reencode DNs into UTF8Strings
2212 (in violation of RFC3280) and can't or wont issue name rollover
2216 *) Make an explicit check during certificate validation to see that
2217 the CA setting in each certificate on the chain is correct. As a
2218 side effect always do the following basic checks on extensions,
2219 not just when there's an associated purpose to the check:
2221 - if there is an unhandled critical extension (unless the user
2222 has chosen to ignore this fault)
2223 - if the path length has been exceeded (if one is set at all)
2224 - that certain extensions fit the associated purpose (if one has
2228 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
2230 *) Avoid a race condition when CRLs are checked in a multi threaded
2231 environment. This would happen due to the reordering of the revoked
2232 entries during signature checking and serial number lookup. Now the
2233 encoding is cached and the serial number sort performed under a lock.
2234 Add new STACK function sk_is_sorted().
2237 *) Add Delta CRL to the extension code.
2240 *) Various fixes to s3_pkt.c so alerts are sent properly.
2241 [David Holmes <d.holmes@f5.com>]
2243 *) Reduce the chances of duplicate issuer name and serial numbers (in
2244 violation of RFC3280) using the OpenSSL certificate creation utilities.
2245 This is done by creating a random 64 bit value for the initial serial
2246 number when a serial number file is created or when a self signed
2247 certificate is created using 'openssl req -x509'. The initial serial
2248 number file is created using 'openssl x509 -next_serial' in CA.pl
2249 rather than being initialized to 1.
2252 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
2254 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
2255 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
2256 [Joe Orton, Steve Henson]
2258 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
2260 [Joe Orton, Steve Henson]
2262 *) Make it possible to have multiple active certificates with the same
2263 subject in the CA index file. This is done only if the keyword
2264 'unique_subject' is set to 'no' in the main CA section (default
2265 if 'CA_default') of the configuration file. The value is saved
2266 with the database itself in a separate index attribute file,
2267 named like the index file with '.attr' appended to the name.
2270 *) X509 verify fixes. Disable broken certificate workarounds when
2271 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
2272 keyUsage extension present. Don't accept CRLs with unhandled critical
2273 extensions: since verify currently doesn't process CRL extensions this
2274 rejects a CRL with *any* critical extensions. Add new verify error codes
2278 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
2279 A clarification of RFC2560 will require the use of OCTET STRINGs and
2280 some implementations cannot handle the current raw format. Since OpenSSL
2281 copies and compares OCSP nonces as opaque blobs without any attempt at
2282 parsing them this should not create any compatibility issues.
2285 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
2286 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
2287 this HMAC (and other) operations are several times slower than OpenSSL
2291 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
2292 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2294 *) Use the correct content when signing type "other".
2297 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
2299 *) Fix various bugs revealed by running the NISCC test suite:
2301 Stop out of bounds reads in the ASN1 code when presented with
2302 invalid tags (CVE-2003-0543 and CVE-2003-0544).
2304 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
2306 If verify callback ignores invalid public key errors don't try to check
2307 certificate signature with the NULL public key.
2311 *) New -ignore_err option in ocsp application to stop the server
2312 exiting on the first error in a request.
2315 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
2316 if the server requested one: as stated in TLS 1.0 and SSL 3.0
2320 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
2321 extra data after the compression methods not only for TLS 1.0
2322 but also for SSL 3.0 (as required by the specification).
2323 [Bodo Moeller; problem pointed out by Matthias Loepfe]
2325 *) Change X509_certificate_type() to mark the key as exported/exportable
2326 when it's 512 *bits* long, not 512 bytes.
2329 *) Change AES_cbc_encrypt() so it outputs exact multiple of
2330 blocks during encryption.
2333 *) Various fixes to base64 BIO and non blocking I/O. On write
2334 flushes were not handled properly if the BIO retried. On read
2335 data was not being buffered properly and had various logic bugs.
2336 This also affects blocking I/O when the data being decoded is a
2340 *) Various S/MIME bugfixes and compatibility changes:
2341 output correct application/pkcs7 MIME type if
2342 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
2343 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
2344 of files as .eml work). Correctly handle very long lines in MIME
2348 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
2350 *) Countermeasure against the Klima-Pokorny-Rosa extension of
2351 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
2352 a protocol version number mismatch like a decryption error
2353 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
2356 *) Turn on RSA blinding by default in the default implementation
2357 to avoid a timing attack. Applications that don't want it can call
2358 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
2359 They would be ill-advised to do so in most cases.
2360 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
2362 *) Change RSA blinding code so that it works when the PRNG is not
2363 seeded (in this case, the secret RSA exponent is abused as
2364 an unpredictable seed -- if it is not unpredictable, there
2365 is no point in blinding anyway). Make RSA blinding thread-safe
2366 by remembering the creator's thread ID in rsa->blinding and
2367 having all other threads use local one-time blinding factors
2368 (this requires more computation than sharing rsa->blinding, but
2369 avoids excessive locking; and if an RSA object is not shared
2370 between threads, blinding will still be very fast).
2373 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
2374 ENGINE as defaults for all supported algorithms irrespective of
2375 the 'flags' parameter. 'flags' is now honoured, so applications
2376 should make sure they are passing it correctly.
2379 *) Target "mingw" now allows native Windows code to be generated in
2380 the Cygwin environment as well as with the MinGW compiler.
2383 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
2385 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
2386 via timing by performing a MAC computation even if incorrrect
2387 block cipher padding has been found. This is a countermeasure
2388 against active attacks where the attacker has to distinguish
2389 between bad padding and a MAC verification error. (CVE-2003-0078)
2391 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
2392 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
2393 Martin Vuagnoux (EPFL, Ilion)]
2395 *) Make the no-err option work as intended. The intention with no-err
2396 is not to have the whole error stack handling routines removed from
2397 libcrypto, it's only intended to remove all the function name and
2398 reason texts, thereby removing some of the footprint that may not
2399 be interesting if those errors aren't displayed anyway.
2401 NOTE: it's still possible for any application or module to have it's
2402 own set of error texts inserted. The routines are there, just not
2403 used by default when no-err is given.
2406 *) Add support for FreeBSD on IA64.
2407 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
2409 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
2410 Kerberos function mit_des_cbc_cksum(). Before this change,
2411 the value returned by DES_cbc_cksum() was like the one from
2412 mit_des_cbc_cksum(), except the bytes were swapped.
2413 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
2415 *) Allow an application to disable the automatic SSL chain building.
2416 Before this a rather primitive chain build was always performed in
2417 ssl3_output_cert_chain(): an application had no way to send the
2418 correct chain if the automatic operation produced an incorrect result.
2420 Now the chain builder is disabled if either:
2422 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
2424 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
2426 The reasoning behind this is that an application would not want the
2427 auto chain building to take place if extra chain certificates are
2428 present and it might also want a means of sending no additional
2429 certificates (for example the chain has two certificates and the
2433 *) Add the possibility to build without the ENGINE framework.
2434 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2436 *) Under Win32 gmtime() can return NULL: check return value in
2437 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
2440 *) DSA routines: under certain error conditions uninitialized BN objects
2441 could be freed. Solution: make sure initialization is performed early
2442 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
2443 Nils Larsch <nla@trustcenter.de> via PR#459)
2446 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
2447 checked on reconnect on the client side, therefore session resumption
2448 could still fail with a "ssl session id is different" error. This
2449 behaviour is masked when SSL_OP_ALL is used due to
2450 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
2451 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2452 followup to PR #377.
2455 *) IA-32 assembler support enhancements: unified ELF targets, support
2456 for SCO/Caldera platforms, fix for Cygwin shared build.
2459 *) Add support for FreeBSD on sparc64. As a consequence, support for
2460 FreeBSD on non-x86 processors is separate from x86 processors on
2461 the config script, much like the NetBSD support.
2462 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
2464 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
2466 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
2469 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
2470 code (06) was taken as the first octet of the session ID and the last
2471 octet was ignored consequently. As a result SSLv2 client side session
2472 caching could not have worked due to the session ID mismatch between
2474 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2478 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
2479 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
2483 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
2484 seems that in spite of existing for more than a year, many application
2485 author have done nothing to provide the necessary callbacks, which
2486 means that this particular engine will not work properly anywhere.
2487 This is a very unfortunate situation which forces us, in the name
2488 of usability, to give the hw_ncipher.c a static lock, which is part
2490 NOTE: This is for the 0.9.7 series ONLY. This hack will never
2491 appear in 0.9.8 or later. We EXPECT application authors to have
2492 dealt properly with this when 0.9.8 is released (unless we actually
2493 make such changes in the libcrypto locking code that changes will
2494 have to be made anyway).
2497 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
2498 octets have been read, EOF or an error occurs. Without this change
2499 some truncated ASN1 structures will not produce an error.
2502 *) Disable Heimdal support, since it hasn't been fully implemented.
2503 Still give the possibility to force the use of Heimdal, but with
2504 warnings and a request that patches get sent to openssl-dev.
2507 *) Add the VC-CE target, introduce the WINCE sysname, and add
2508 INSTALL.WCE and appropriate conditionals to make it build.
2509 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2511 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
2512 cygssl-x.y.z.dll, where x, y and z are the major, minor and
2513 edit numbers of the version.
2514 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
2516 *) Introduce safe string copy and catenation functions
2517 (BUF_strlcpy() and BUF_strlcat()).
2518 [Ben Laurie (CHATS) and Richard Levitte]
2520 *) Avoid using fixed-size buffers for one-line DNs.
2521 [Ben Laurie (CHATS)]
2523 *) Add BUF_MEM_grow_clean() to avoid information leakage when
2524 resizing buffers containing secrets, and use where appropriate.
2525 [Ben Laurie (CHATS)]
2527 *) Avoid using fixed size buffers for configuration file location.
2528 [Ben Laurie (CHATS)]
2530 *) Avoid filename truncation for various CA files.
2531 [Ben Laurie (CHATS)]
2533 *) Use sizeof in preference to magic numbers.
2534 [Ben Laurie (CHATS)]
2536 *) Avoid filename truncation in cert requests.
2537 [Ben Laurie (CHATS)]
2539 *) Add assertions to check for (supposedly impossible) buffer
2541 [Ben Laurie (CHATS)]
2543 *) Don't cache truncated DNS entries in the local cache (this could
2544 potentially lead to a spoofing attack).
2545 [Ben Laurie (CHATS)]
2547 *) Fix various buffers to be large enough for hex/decimal
2548 representations in a platform independent manner.
2549 [Ben Laurie (CHATS)]
2551 *) Add CRYPTO_realloc_clean() to avoid information leakage when
2552 resizing buffers containing secrets, and use where appropriate.
2553 [Ben Laurie (CHATS)]
2555 *) Add BIO_indent() to avoid much slightly worrying code to do
2557 [Ben Laurie (CHATS)]
2559 *) Convert sprintf()/BIO_puts() to BIO_printf().
2560 [Ben Laurie (CHATS)]
2562 *) buffer_gets() could terminate with the buffer only half
2564 [Ben Laurie (CHATS)]
2566 *) Add assertions to prevent user-supplied crypto functions from
2567 overflowing internal buffers by having large block sizes, etc.
2568 [Ben Laurie (CHATS)]
2570 *) New OPENSSL_assert() macro (similar to assert(), but enabled
2572 [Ben Laurie (CHATS)]
2574 *) Eliminate unused copy of key in RC4.
2575 [Ben Laurie (CHATS)]
2577 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
2578 [Ben Laurie (CHATS)]
2580 *) Fix off-by-one error in EGD path.
2581 [Ben Laurie (CHATS)]
2583 *) If RANDFILE path is too long, ignore instead of truncating.
2584 [Ben Laurie (CHATS)]
2586 *) Eliminate unused and incorrectly sized X.509 structure
2588 [Ben Laurie (CHATS)]
2590 *) Eliminate unused and dangerous function knumber().
2591 [Ben Laurie (CHATS)]
2593 *) Eliminate unused and dangerous structure, KSSL_ERR.
2594 [Ben Laurie (CHATS)]
2596 *) Protect against overlong session ID context length in an encoded
2597 session object. Since these are local, this does not appear to be
2599 [Ben Laurie (CHATS)]
2601 *) Change from security patch (see 0.9.6e below) that did not affect
2602 the 0.9.6 release series:
2604 Remote buffer overflow in SSL3 protocol - an attacker could
2605 supply an oversized master key in Kerberos-enabled versions.
2607 [Ben Laurie (CHATS)]
2609 *) Change the SSL kerb5 codes to match RFC 2712.
2612 *) Make -nameopt work fully for req and add -reqopt switch.
2613 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
2615 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
2616 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
2618 *) Make sure tests can be performed even if the corresponding algorithms
2619 have been removed entirely. This was also the last step to make
2620 OpenSSL compilable with DJGPP under all reasonable conditions.
2621 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
2623 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
2624 to allow version independent disabling of normally unselected ciphers,
2625 which may be activated as a side-effect of selecting a single cipher.
2627 (E.g., cipher list string "RSA" enables ciphersuites that are left
2628 out of "ALL" because they do not provide symmetric encryption.
2629 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
2630 [Lutz Jaenicke, Bodo Moeller]
2632 *) Add appropriate support for separate platform-dependent build
2633 directories. The recommended way to make a platform-dependent
2634 build directory is the following (tested on Linux), maybe with
2637 # Place yourself outside of the OpenSSL source tree. In
2638 # this example, the environment variable OPENSSL_SOURCE
2639 # is assumed to contain the absolute OpenSSL source directory.
2640 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
2641 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
2642 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
2643 mkdir -p `dirname $F`
2644 ln -s $OPENSSL_SOURCE/$F $F
2647 To be absolutely sure not to disturb the source tree, a "make clean"
2648 is a good thing. If it isn't successfull, don't worry about it,
2649 it probably means the source directory is very clean.
2652 *) Make sure any ENGINE control commands make local copies of string
2653 pointers passed to them whenever necessary. Otherwise it is possible
2654 the caller may have overwritten (or deallocated) the original string
2655 data when a later ENGINE operation tries to use the stored values.
2656 [Götz Babin-Ebell <babinebell@trustcenter.de>]
2658 *) Improve diagnostics in file reading and command-line digests.
2659 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
2661 *) Add AES modes CFB and OFB to the object database. Correct an
2662 error in AES-CFB decryption.
2665 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
2666 allows existing EVP_CIPHER_CTX structures to be reused after
2667 calling EVP_*Final(). This behaviour is used by encryption
2668 BIOs and some applications. This has the side effect that
2669 applications must explicitly clean up cipher contexts with
2670 EVP_CIPHER_CTX_cleanup() or they will leak memory.
2673 *) Check the values of dna and dnb in bn_mul_recursive before calling
2674 bn_mul_comba (a non zero value means the a or b arrays do not contain
2675 n2 elements) and fallback to bn_mul_normal if either is not zero.
2678 *) Fix escaping of non-ASCII characters when using the -subj option
2679 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
2682 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
2683 form for "surname", serialNumber has no short form.
2684 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
2685 therefore remove "mail" short name for "internet 7".
2686 The OID for unique identifiers in X509 certificates is
2687 x500UniqueIdentifier, not uniqueIdentifier.
2688 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
2691 *) Add an "init" command to the ENGINE config module and auto initialize
2692 ENGINEs. Without any "init" command the ENGINE will be initialized
2693 after all ctrl commands have been executed on it. If init=1 the
2694 ENGINE is initailized at that point (ctrls before that point are run
2695 on the uninitialized ENGINE and after on the initialized one). If
2696 init=0 then the ENGINE will not be iniatialized at all.
2699 *) Fix the 'app_verify_callback' interface so that the user-defined
2700 argument is actually passed to the callback: In the
2701 SSL_CTX_set_cert_verify_callback() prototype, the callback
2702 declaration has been changed from
2705 int (*cb)(X509_STORE_CTX *,void *);
2706 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
2707 i=s->ctx->app_verify_callback(&ctx)
2708 has been changed into
2709 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
2711 To update applications using SSL_CTX_set_cert_verify_callback(),
2712 a dummy argument can be added to their callback functions.
2713 [D. K. Smetters <smetters@parc.xerox.com>]
2715 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
2716 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
2718 *) Add and OPENSSL_LOAD_CONF define which will cause
2719 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
2720 This allows older applications to transparently support certain
2721 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
2722 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
2723 load the config file and OPENSSL_add_all_algorithms_conf() which will
2724 always load it have also been added.
2727 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
2728 Adjust NIDs and EVP layer.
2729 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2731 *) Config modules support in openssl utility.
2733 Most commands now load modules from the config file,
2734 though in a few (such as version) this isn't done
2735 because it couldn't be used for anything.
2737 In the case of ca and req the config file used is
2738 the same as the utility itself: that is the -config
2739 command line option can be used to specify an
2743 *) Move default behaviour from OPENSSL_config(). If appname is NULL
2744 use "openssl_conf" if filename is NULL use default openssl config file.
2747 *) Add an argument to OPENSSL_config() to allow the use of an alternative
2748 config section name. Add a new flag to tolerate a missing config file
2749 and move code to CONF_modules_load_file().
2752 *) Support for crypto accelerator cards from Accelerated Encryption
2753 Processing, www.aep.ie. (Use engine 'aep')
2754 The support was copied from 0.9.6c [engine] and adapted/corrected
2755 to work with the new engine framework.
2756 [AEP Inc. and Richard Levitte]
2758 *) Support for SureWare crypto accelerator cards from Baltimore
2759 Technologies. (Use engine 'sureware')
2760 The support was copied from 0.9.6c [engine] and adapted
2761 to work with the new engine framework.
2764 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
2765 make the newer ENGINE framework commands for the CHIL engine work.
2766 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
2768 *) Make it possible to produce shared libraries on ReliantUNIX.
2769 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
2771 *) Add the configuration target debug-linux-ppro.
2772 Make 'openssl rsa' use the general key loading routines
2773 implemented in apps.c, and make those routines able to
2774 handle the key format FORMAT_NETSCAPE and the variant
2776 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2778 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
2779 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2781 *) Add -keyform to rsautl, and document -engine.
2782 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
2784 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
2785 BIO_R_NO_SUCH_FILE error code rather than the generic
2786 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
2789 *) Add new functions
2791 ERR_peek_last_error_line
2792 ERR_peek_last_error_line_data.
2793 These are similar to
2796 ERR_peek_error_line_data,
2797 but report on the latest error recorded rather than the first one
2798 still in the error queue.
2799 [Ben Laurie, Bodo Moeller]
2801 *) default_algorithms option in ENGINE config module. This allows things
2803 default_algorithms = ALL
2804 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
2807 *) Prelminary ENGINE config module.
2810 *) New experimental application configuration code.
2813 *) Change the AES code to follow the same name structure as all other
2814 symmetric ciphers, and behave the same way. Move everything to
2815 the directory crypto/aes, thereby obsoleting crypto/rijndael.
2816 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2818 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
2819 [Ben Laurie and Theo de Raadt]
2821 *) Add option to output public keys in req command.
2822 [Massimiliano Pala madwolf@openca.org]
2824 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
2825 (up to about 10% better than before for P-192 and P-224).
2828 *) New functions/macros
2830 SSL_CTX_set_msg_callback(ctx, cb)
2831 SSL_CTX_set_msg_callback_arg(ctx, arg)
2832 SSL_set_msg_callback(ssl, cb)
2833 SSL_set_msg_callback_arg(ssl, arg)
2835 to request calling a callback function
2837 void cb(int write_p, int version, int content_type,
2838 const void *buf, size_t len, SSL *ssl, void *arg)
2840 whenever a protocol message has been completely received
2841 (write_p == 0) or sent (write_p == 1). Here 'version' is the
2842 protocol version according to which the SSL library interprets
2843 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
2844 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
2845 the content type as defined in the SSL 3.0/TLS 1.0 protocol
2846 specification (change_cipher_spec(20), alert(21), handshake(22)).
2847 'buf' and 'len' point to the actual message, 'ssl' to the
2848 SSL object, and 'arg' is the application-defined value set by
2849 SSL[_CTX]_set_msg_callback_arg().
2851 'openssl s_client' and 'openssl s_server' have new '-msg' options
2852 to enable a callback that displays all protocol messages.
2855 *) Change the shared library support so shared libraries are built as
2856 soon as the corresponding static library is finished, and thereby get
2857 openssl and the test programs linked against the shared library.
2858 This still only happens when the keyword "shard" has been given to
2859 the configuration scripts.
2861 NOTE: shared library support is still an experimental thing, and
2862 backward binary compatibility is still not guaranteed.
2863 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
2865 *) Add support for Subject Information Access extension.
2866 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2868 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
2869 additional bytes when new memory had to be allocated, not just
2870 when reusing an existing buffer.
2873 *) New command line and configuration option 'utf8' for the req command.
2874 This allows field values to be specified as UTF8 strings.
2877 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
2878 runs for the former and machine-readable output for the latter.
2881 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
2882 of the e-mail address in the DN (i.e., it will go into a certificate
2883 extension only). The new configuration file option 'email_in_dn = no'
2884 has the same effect.
2885 [Massimiliano Pala madwolf@openca.org]
2887 *) Change all functions with names starting with des_ to be starting
2888 with DES_ instead. Add wrappers that are compatible with libdes,
2889 but are named _ossl_old_des_*. Finally, add macros that map the
2890 des_* symbols to the corresponding _ossl_old_des_* if libdes
2891 compatibility is desired. If OpenSSL 0.9.6c compatibility is
2892 desired, the des_* symbols will be mapped to DES_*, with one
2895 Since we provide two compatibility mappings, the user needs to
2896 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
2897 compatibility is desired. The default (i.e., when that macro
2898 isn't defined) is OpenSSL 0.9.6c compatibility.
2900 There are also macros that enable and disable the support of old
2901 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
2902 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
2903 are defined, the default will apply: to support the old des routines.
2905 In either case, one must include openssl/des.h to get the correct
2906 definitions. Do not try to just include openssl/des_old.h, that
2909 NOTE: This is a major break of an old API into a new one. Software
2910 authors are encouraged to switch to the DES_ style functions. Some
2911 time in the future, des_old.h and the libdes compatibility functions
2912 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
2913 default), and then completely removed.
2916 *) Test for certificates which contain unsupported critical extensions.
2917 If such a certificate is found during a verify operation it is
2918 rejected by default: this behaviour can be overridden by either
2919 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
2920 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
2921 X509_supported_extension() has also been added which returns 1 if a
2922 particular extension is supported.
2925 *) Modify the behaviour of EVP cipher functions in similar way to digests
2926 to retain compatibility with existing code.
2929 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
2930 compatibility with existing code. In particular the 'ctx' parameter does
2931 not have to be to be initialized before the call to EVP_DigestInit() and
2932 it is tidied up after a call to EVP_DigestFinal(). New function
2933 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
2934 EVP_MD_CTX_copy() changed to not require the destination to be
2935 initialized valid and new function EVP_MD_CTX_copy_ex() added which
2936 requires the destination to be valid.
2938 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
2939 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
2942 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
2943 so that complete 'Handshake' protocol structures are kept in memory
2944 instead of overwriting 'msg_type' and 'length' with 'body' data.
2947 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
2948 [Massimo Santin via Richard Levitte]
2950 *) Major restructuring to the underlying ENGINE code. This includes
2951 reduction of linker bloat, separation of pure "ENGINE" manipulation
2952 (initialisation, etc) from functionality dealing with implementations
2953 of specific crypto iterfaces. This change also introduces integrated
2954 support for symmetric ciphers and digest implementations - so ENGINEs
2955 can now accelerate these by providing EVP_CIPHER and EVP_MD
2956 implementations of their own. This is detailed in crypto/engine/README
2957 as it couldn't be adequately described here. However, there are a few
2958 API changes worth noting - some RSA, DSA, DH, and RAND functions that
2959 were changed in the original introduction of ENGINE code have now
2960 reverted back - the hooking from this code to ENGINE is now a good
2961 deal more passive and at run-time, operations deal directly with
2962 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
2963 dereferencing through an ENGINE pointer any more. Also, the ENGINE
2964 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
2965 they were not being used by the framework as there is no concept of a
2966 BIGNUM_METHOD and they could not be generalised to the new
2967 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
2968 ENGINE_cpy() has been removed as it cannot be consistently defined in
2972 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
2975 *) Change mkdef.pl to sort symbols that get the same entry number,
2976 and make sure the automatically generated functions ERR_load_*
2977 become part of libeay.num as well.
2980 *) New function SSL_renegotiate_pending(). This returns true once
2981 renegotiation has been requested (either SSL_renegotiate() call
2982 or HelloRequest/ClientHello receveived from the peer) and becomes
2983 false once a handshake has been completed.
2984 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
2985 sends a HelloRequest, but does not ensure that a handshake takes
2986 place. SSL_renegotiate_pending() is useful for checking if the
2987 client has followed the request.)
2990 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
2991 By default, clients may request session resumption even during
2992 renegotiation (if session ID contexts permit); with this option,
2993 session resumption is possible only in the first handshake.
2995 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
2996 more bits available for options that should not be part of
2997 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
3000 *) Add some demos for certificate and certificate request creation.
3003 *) Make maximum certificate chain size accepted from the peer application
3004 settable (SSL*_get/set_max_cert_list()), as proposed by
3005 "Douglas E. Engert" <deengert@anl.gov>.
3008 *) Add support for shared libraries for Unixware-7
3009 (Boyd Lynn Gerber <gerberb@zenez.com>).
3012 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
3013 be done prior to destruction. Use this to unload error strings from
3014 ENGINEs that load their own error strings. NB: This adds two new API
3015 functions to "get" and "set" this destroy handler in an ENGINE.
3018 *) Alter all existing ENGINE implementations (except "openssl" and
3019 "openbsd") to dynamically instantiate their own error strings. This
3020 makes them more flexible to be built both as statically-linked ENGINEs
3021 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
3022 Also, add stub code to each that makes building them as self-contained
3023 shared-libraries easier (see README.ENGINE).
3026 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
3027 implementations into applications that are completely implemented in
3028 self-contained shared-libraries. The "dynamic" ENGINE exposes control
3029 commands that can be used to configure what shared-library to load and
3030 to control aspects of the way it is handled. Also, made an update to
3031 the README.ENGINE file that brings its information up-to-date and
3032 provides some information and instructions on the "dynamic" ENGINE
3033 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
3036 *) Make it possible to unload ranges of ERR strings with a new
3037 "ERR_unload_strings" function.
3040 *) Add a copy() function to EVP_MD.
3043 *) Make EVP_MD routines take a context pointer instead of just the
3044 md_data void pointer.
3047 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
3048 that the digest can only process a single chunk of data
3049 (typically because it is provided by a piece of
3050 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
3051 is only going to provide a single chunk of data, and hence the
3052 framework needn't accumulate the data for oneshot drivers.
3055 *) As with "ERR", make it possible to replace the underlying "ex_data"
3056 functions. This change also alters the storage and management of global
3057 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
3058 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
3059 index counters. The API functions that use this state have been changed
3060 to take a "class_index" rather than pointers to the class's local STACK
3061 and counter, and there is now an API function to dynamically create new
3062 classes. This centralisation allows us to (a) plug a lot of the
3063 thread-safety problems that existed, and (b) makes it possible to clean
3064 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
3065 such data would previously have always leaked in application code and
3066 workarounds were in place to make the memory debugging turn a blind eye
3067 to it. Application code that doesn't use this new function will still
3068 leak as before, but their memory debugging output will announce it now
3069 rather than letting it slide.
3071 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
3072 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
3073 has a return value to indicate success or failure.
3076 *) Make it possible to replace the underlying "ERR" functions such that the
3077 global state (2 LHASH tables and 2 locks) is only used by the "default"
3078 implementation. This change also adds two functions to "get" and "set"
3079 the implementation prior to it being automatically set the first time
3080 any other ERR function takes place. Ie. an application can call "get",
3081 pass the return value to a module it has just loaded, and that module
3082 can call its own "set" function using that value. This means the
3083 module's "ERR" operations will use (and modify) the error state in the
3084 application and not in its own statically linked copy of OpenSSL code.
3087 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
3088 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
3089 the operation, and provides a more encapsulated way for external code
3090 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
3091 to use these functions rather than manually incrementing the counts.
3093 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
3096 *) Add EVP test program.
3099 *) Add symmetric cipher support to ENGINE. Expect the API to change!
3102 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
3103 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
3104 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
3105 These allow a CRL to be built without having to access X509_CRL fields
3106 directly. Modify 'ca' application to use new functions.
3109 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
3110 bug workarounds. Rollback attack detection is a security feature.
3111 The problem will only arise on OpenSSL servers when TLSv1 is not
3112 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
3113 Software authors not wanting to support TLSv1 will have special reasons
3114 for their choice and can explicitly enable this option.
3115 [Bodo Moeller, Lutz Jaenicke]
3117 *) Rationalise EVP so it can be extended: don't include a union of
3118 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
3119 (similar to those existing for EVP_CIPHER_CTX).
3124 EVP_MD_CTX_init(&md); /* new function call */
3125 EVP_DigestInit(&md, EVP_sha1());
3126 EVP_DigestUpdate(&md, in, len);
3127 EVP_DigestFinal(&md, out, NULL);
3128 EVP_MD_CTX_cleanup(&md); /* new function call */
3132 *) Make DES key schedule conform to the usual scheme, as well as
3133 correcting its structure. This means that calls to DES functions
3134 now have to pass a pointer to a des_key_schedule instead of a
3135 plain des_key_schedule (which was actually always a pointer
3138 des_key_schedule ks;
3140 des_set_key_checked(..., &ks);
3141 des_ncbc_encrypt(..., &ks, ...);
3143 (Note that a later change renames 'des_...' into 'DES_...'.)
3146 *) Initial reduction of linker bloat: the use of some functions, such as
3147 PEM causes large amounts of unused functions to be linked in due to
3148 poor organisation. For example pem_all.c contains every PEM function
3149 which has a knock on effect of linking in large amounts of (unused)
3150 ASN1 code. Grouping together similar functions and splitting unrelated
3151 functions prevents this.
3154 *) Cleanup of EVP macros.
3157 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
3158 correct _ecb suffix.
3161 *) Add initial OCSP responder support to ocsp application. The
3162 revocation information is handled using the text based index
3163 use by the ca application. The responder can either handle
3164 requests generated internally, supplied in files (for example
3165 via a CGI script) or using an internal minimal server.
3168 *) Add configuration choices to get zlib compression for TLS.
3171 *) Changes to Kerberos SSL for RFC 2712 compliance:
3172 1. Implemented real KerberosWrapper, instead of just using
3173 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
3174 2. Implemented optional authenticator field of KerberosWrapper.
3176 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
3177 and authenticator structs; see crypto/krb5/.
3179 Generalized Kerberos calls to support multiple Kerberos libraries.
3180 [Vern Staats <staatsvr@asc.hpc.mil>,
3181 Jeffrey Altman <jaltman@columbia.edu>
3182 via Richard Levitte]
3184 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
3185 already does with RSA. testdsa.h now has 'priv_key/pub_key'
3186 values for each of the key sizes rather than having just
3187 parameters (and 'speed' generating keys each time).
3190 *) Speed up EVP routines.
3193 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
3194 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
3195 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
3196 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
3198 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
3199 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
3200 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
3203 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
3205 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
3208 *) Added the OS2-EMX target.
3209 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
3211 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
3212 to support NCONF routines in extension code. New function CONF_set_nconf()
3213 to allow functions which take an NCONF to also handle the old LHASH
3214 structure: this means that the old CONF compatible routines can be
3215 retained (in particular wrt extensions) without having to duplicate the
3216 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
3219 *) Enhance the general user interface with mechanisms for inner control
3220 and with possibilities to have yes/no kind of prompts.
3223 *) Change all calls to low level digest routines in the library and
3224 applications to use EVP. Add missing calls to HMAC_cleanup() and
3225 don't assume HMAC_CTX can be copied using memcpy().
3226 [Verdon Walker <VWalker@novell.com>, Steve Henson]
3228 *) Add the possibility to control engines through control names but with
3229 arbitrary arguments instead of just a string.
3230 Change the key loaders to take a UI_METHOD instead of a callback
3231 function pointer. NOTE: this breaks binary compatibility with earlier
3232 versions of OpenSSL [engine].
3233 Adapt the nCipher code for these new conditions and add a card insertion
3237 *) Enhance the general user interface with mechanisms to better support
3238 dialog box interfaces, application-defined prompts, the possibility
3239 to use defaults (for example default passwords from somewhere else)
3240 and interrupts/cancellations.
3243 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
3244 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
3247 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
3248 tidy up some unnecessarily weird code in 'sk_new()').
3249 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
3251 *) Change the key loading routines for ENGINEs to use the same kind
3252 callback (pem_password_cb) as all other routines that need this
3256 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
3257 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
3258 than this minimum value is recommended.
3261 *) New random seeder for OpenVMS, using the system process statistics
3262 that are easily reachable.
3265 *) Windows apparently can't transparently handle global
3266 variables defined in DLLs. Initialisations such as:
3268 const ASN1_ITEM *it = &ASN1_INTEGER_it;
3270 wont compile. This is used by the any applications that need to
3271 declare their own ASN1 modules. This was fixed by adding the option
3272 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
3273 needed for static libraries under Win32.
3276 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
3277 setting of purpose and trust fields. New X509_STORE trust and
3278 purpose functions and tidy up setting in other SSL functions.
3281 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
3282 structure. These are inherited by X509_STORE_CTX when it is
3283 initialised. This allows various defaults to be set in the
3284 X509_STORE structure (such as flags for CRL checking and custom
3285 purpose or trust settings) for functions which only use X509_STORE_CTX
3286 internally such as S/MIME.
3288 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
3289 trust settings if they are not set in X509_STORE. This allows X509_STORE
3290 purposes and trust (in S/MIME for example) to override any set by default.
3292 Add command line options for CRL checking to smime, s_client and s_server
3296 *) Initial CRL based revocation checking. If the CRL checking flag(s)
3297 are set then the CRL is looked up in the X509_STORE structure and
3298 its validity and signature checked, then if the certificate is found
3299 in the CRL the verify fails with a revoked error.
3301 Various new CRL related callbacks added to X509_STORE_CTX structure.
3303 Command line options added to 'verify' application to support this.
3305 This needs some additional work, such as being able to handle multiple
3306 CRLs with different times, extension based lookup (rather than just
3307 by subject name) and ultimately more complete V2 CRL extension
3311 *) Add a general user interface API (crypto/ui/). This is designed
3312 to replace things like des_read_password and friends (backward
3313 compatibility functions using this new API are provided).
3314 The purpose is to remove prompting functions from the DES code
3315 section as well as provide for prompting through dialog boxes in
3316 a window system and the like.
3319 *) Add "ex_data" support to ENGINE so implementations can add state at a
3320 per-structure level rather than having to store it globally.
3323 *) Make it possible for ENGINE structures to be copied when retrieved by
3324 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
3325 This causes the "original" ENGINE structure to act like a template,
3326 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
3327 operational state can be localised to each ENGINE structure, despite the
3328 fact they all share the same "methods". New ENGINE structures returned in
3329 this case have no functional references and the return value is the single
3330 structural reference. This matches the single structural reference returned
3331 by ENGINE_by_id() normally, when it is incremented on the pre-existing
3335 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
3336 needs to match any other type at all we need to manually clear the
3340 *) Changes to the "openssl engine" utility to include;
3341 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
3342 about an ENGINE's available control commands.
3343 - executing control commands from command line arguments using the
3344 '-pre' and '-post' switches. '-post' is only used if '-t' is
3345 specified and the ENGINE is successfully initialised. The syntax for
3346 the individual commands are colon-separated, for example;
3347 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
3350 *) New dynamic control command support for ENGINEs. ENGINEs can now
3351 declare their own commands (numbers), names (strings), descriptions,
3352 and input types for run-time discovery by calling applications. A
3353 subset of these commands are implicitly classed as "executable"
3354 depending on their input type, and only these can be invoked through
3355 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
3356 can be based on user input, config files, etc). The distinction is
3357 that "executable" commands cannot return anything other than a boolean
3358 result and can only support numeric or string input, whereas some
3359 discoverable commands may only be for direct use through
3360 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
3361 pointers, or other custom uses. The "executable" commands are to
3362 support parameterisations of ENGINE behaviour that can be
3363 unambiguously defined by ENGINEs and used consistently across any
3364 OpenSSL-based application. Commands have been added to all the
3365 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
3366 control over shared-library paths without source code alterations.
3369 *) Changed all ENGINE implementations to dynamically allocate their
3370 ENGINEs rather than declaring them statically. Apart from this being
3371 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
3372 this also allows the implementations to compile without using the
3373 internal engine_int.h header.
3376 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
3377 'const' value. Any code that should be able to modify a RAND_METHOD
3378 should already have non-const pointers to it (ie. they should only
3379 modify their own ones).
3382 *) Made a variety of little tweaks to the ENGINE code.
3383 - "atalla" and "ubsec" string definitions were moved from header files
3384 to C code. "nuron" string definitions were placed in variables
3385 rather than hard-coded - allowing parameterisation of these values
3386 later on via ctrl() commands.
3387 - Removed unused "#if 0"'d code.
3388 - Fixed engine list iteration code so it uses ENGINE_free() to release
3389 structural references.
3390 - Constified the RAND_METHOD element of ENGINE structures.
3391 - Constified various get/set functions as appropriate and added
3392 missing functions (including a catch-all ENGINE_cpy that duplicates
3393 all ENGINE values onto a new ENGINE except reference counts/state).
3394 - Removed NULL parameter checks in get/set functions. Setting a method
3395 or function to NULL is a way of cancelling out a previously set
3396 value. Passing a NULL ENGINE parameter is just plain stupid anyway
3397 and doesn't justify the extra error symbols and code.
3398 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
3399 flags from engine_int.h to engine.h.
3400 - Changed prototypes for ENGINE handler functions (init(), finish(),
3401 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
3404 *) Implement binary inversion algorithm for BN_mod_inverse in addition
3405 to the algorithm using long division. The binary algorithm can be
3406 used only if the modulus is odd. On 32-bit systems, it is faster
3407 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
3408 roughly 5-15% for 256-bit moduli), so we use it only for moduli
3409 up to 450 bits. In 64-bit environments, the binary algorithm
3410 appears to be advantageous for much longer moduli; here we use it
3411 for moduli up to 2048 bits.
3414 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
3415 could not support the combine flag in choice fields.
3418 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
3419 extensions from a certificate request to the certificate.
3422 *) Allow multiple 'certopt' and 'nameopt' options to be separated
3423 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
3424 file: this allows the display of the certificate about to be
3425 signed to be customised, to allow certain fields to be included
3426 or excluded and extension details. The old system didn't display
3427 multicharacter strings properly, omitted fields not in the policy
3428 and couldn't display additional details such as extensions.
3431 *) Function EC_POINTs_mul for multiple scalar multiplication
3432 of an arbitrary number of elliptic curve points
3433 \sum scalars[i]*points[i],
3434 optionally including the generator defined for the EC_GROUP:
3435 scalar*generator + \sum scalars[i]*points[i].
3437 EC_POINT_mul is a simple wrapper function for the typical case
3438 that the point list has just one item (besides the optional
3442 *) First EC_METHODs for curves over GF(p):
3444 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
3445 operations and provides various method functions that can also
3446 operate with faster implementations of modular arithmetic.
3448 EC_GFp_mont_method() reuses most functions that are part of
3449 EC_GFp_simple_method, but uses Montgomery arithmetic.
3451 [Bodo Moeller; point addition and point doubling
3452 implementation directly derived from source code provided by
3453 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
3455 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
3456 crypto/ec/ec_lib.c):
3458 Curves are EC_GROUP objects (with an optional group generator)
3459 based on EC_METHODs that are built into the library.
3461 Points are EC_POINT objects based on EC_GROUP objects.
3463 Most of the framework would be able to handle curves over arbitrary
3464 finite fields, but as there are no obvious types for fields other
3465 than GF(p), some functions are limited to that for now.
3468 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
3469 that the file contains a complete HTTP response.
3472 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
3473 change the def and num file printf format specifier from "%-40sXXX"
3474 to "%-39s XXX". The latter will always guarantee a space after the
3475 field while the former will cause them to run together if the field
3476 is 40 of more characters long.
3479 *) Constify the cipher and digest 'method' functions and structures
3480 and modify related functions to take constant EVP_MD and EVP_CIPHER
3484 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
3485 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
3488 *) Modify EVP_Digest*() routines so they now return values. Although the
3489 internal software routines can never fail additional hardware versions
3493 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
3495 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
3496 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
3499 ERR_R_NESTED_ASN1_ERROR
3501 ERR_R_MISSING_ASN1_EOS
3502 were 4 .. 9, conflicting with
3503 ERR_LIB_RSA (= ERR_R_RSA_LIB)
3505 ERR_LIB_PEM (= ERR_R_PEM_LIB).
3506 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
3508 Add new error code 'ERR_R_INTERNAL_ERROR'.
3511 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
3515 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
3516 sets the subject name for a new request or supersedes the
3517 subject name in a given request. Formats that can be parsed are
3518 'CN=Some Name, OU=myOU, C=IT'
3520 'CN=Some Name/OU=myOU/C=IT'.
3522 Add options '-batch' and '-verbose' to 'openssl req'.
3523 [Massimiliano Pala <madwolf@hackmasters.net>]
3525 *) Introduce the possibility to access global variables through
3526 functions on platform were that's the best way to handle exporting
3527 global variables in shared libraries. To enable this functionality,
3528 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
3529 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
3530 is normally done by Configure or something similar).
3532 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
3533 in the source file (foo.c) like this:
3535 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
3536 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
3538 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
3539 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
3541 OPENSSL_DECLARE_GLOBAL(int,foo);
3542 #define foo OPENSSL_GLOBAL_REF(foo)
3543 OPENSSL_DECLARE_GLOBAL(double,bar);
3544 #define bar OPENSSL_GLOBAL_REF(bar)
3546 The #defines are very important, and therefore so is including the
3547 header file everywhere where the defined globals are used.
3549 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
3550 of ASN.1 items, but that structure is a bit different.
3552 The largest change is in util/mkdef.pl which has been enhanced with
3553 better and easier to understand logic to choose which symbols should
3554 go into the Windows .def files as well as a number of fixes and code
3555 cleanup (among others, algorithm keywords are now sorted
3556 lexicographically to avoid constant rewrites).
3559 *) In BN_div() keep a copy of the sign of 'num' before writing the
3560 result to 'rm' because if rm==num the value will be overwritten
3561 and produce the wrong result if 'num' is negative: this caused
3562 problems with BN_mod() and BN_nnmod().
3565 *) Function OCSP_request_verify(). This checks the signature on an
3566 OCSP request and verifies the signer certificate. The signer
3567 certificate is just checked for a generic purpose and OCSP request
3571 *) Add OCSP_check_validity() function to check the validity of OCSP
3572 responses. OCSP responses are prepared in real time and may only
3573 be a few seconds old. Simply checking that the current time lies
3574 between thisUpdate and nextUpdate max reject otherwise valid responses
3575 caused by either OCSP responder or client clock inaccuracy. Instead
3576 we allow thisUpdate and nextUpdate to fall within a certain period of
3577 the current time. The age of the response can also optionally be
3578 checked. Two new options -validity_period and -status_age added to
3582 *) If signature or public key algorithm is unrecognized print out its
3583 OID rather that just UNKNOWN.
3586 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
3587 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
3588 ID to be generated from the issuer certificate alone which can then be
3589 passed to OCSP_id_issuer_cmp().
3592 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
3593 ASN1 modules to export functions returning ASN1_ITEM pointers
3594 instead of the ASN1_ITEM structures themselves. This adds several
3595 new macros which allow the underlying ASN1 function/structure to
3596 be accessed transparently. As a result code should not use ASN1_ITEM
3597 references directly (such as &X509_it) but instead use the relevant
3598 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
3599 use of the new ASN1 code on platforms where exporting structures
3600 is problematical (for example in shared libraries) but exporting
3601 functions returning pointers to structures is not.
3604 *) Add support for overriding the generation of SSL/TLS session IDs.
3605 These callbacks can be registered either in an SSL_CTX or per SSL.
3606 The purpose of this is to allow applications to control, if they wish,
3607 the arbitrary values chosen for use as session IDs, particularly as it
3608 can be useful for session caching in multiple-server environments. A
3609 command-line switch for testing this (and any client code that wishes
3610 to use such a feature) has been added to "s_server".
3611 [Geoff Thorpe, Lutz Jaenicke]
3613 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
3614 of the form '#if defined(...) || defined(...) || ...' and
3615 '#if !defined(...) && !defined(...) && ...'. This also avoids
3616 the growing number of special cases it was previously handling.
3619 *) Make all configuration macros available for application by making
3620 sure they are available in opensslconf.h, by giving them names starting
3621 with "OPENSSL_" to avoid conflicts with other packages and by making
3622 sure e_os2.h will cover all platform-specific cases together with
3624 Additionally, it is now possible to define configuration/platform-
3625 specific names (called "system identities"). In the C code, these
3626 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
3627 macro with the name beginning with "OPENSSL_SYS_", which is determined
3628 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
3632 *) New option -set_serial to 'req' and 'x509' this allows the serial
3633 number to use to be specified on the command line. Previously self
3634 signed certificates were hard coded with serial number 0 and the
3635 CA options of 'x509' had to use a serial number in a file which was
3639 *) New options to 'ca' utility to support V2 CRL entry extensions.
3640 Currently CRL reason, invalidity date and hold instruction are
3641 supported. Add new CRL extensions to V3 code and some new objects.
3644 *) New function EVP_CIPHER_CTX_set_padding() this is used to
3645 disable standard block padding (aka PKCS#5 padding) in the EVP
3646 API, which was previously mandatory. This means that the data is
3647 not padded in any way and so the total length much be a multiple
3648 of the block size, otherwise an error occurs.
3651 *) Initial (incomplete) OCSP SSL support.
3654 *) New function OCSP_parse_url(). This splits up a URL into its host,
3655 port and path components: primarily to parse OCSP URLs. New -url
3656 option to ocsp utility.
3659 *) New nonce behavior. The return value of OCSP_check_nonce() now
3660 reflects the various checks performed. Applications can decide
3661 whether to tolerate certain situations such as an absent nonce
3662 in a response when one was present in a request: the ocsp application
3663 just prints out a warning. New function OCSP_add1_basic_nonce()
3664 this is to allow responders to include a nonce in a response even if
3665 the request is nonce-less.
3668 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
3669 skipped when using openssl x509 multiple times on a single input file,
3670 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
3673 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
3674 set string type: to handle setting ASN1_TIME structures. Fix ca
3675 utility to correctly initialize revocation date of CRLs.
3678 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
3679 the clients preferred ciphersuites and rather use its own preferences.
3680 Should help to work around M$ SGC (Server Gated Cryptography) bug in
3681 Internet Explorer by ensuring unchanged hash method during stepup.
3682 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
3685 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
3686 to aes and add a new 'exist' option to print out symbols that don't
3690 *) Additional options to ocsp utility to allow flags to be set and
3691 additional certificates supplied.
3694 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
3695 OCSP client a number of certificate to only verify the response
3699 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
3700 handle the new API. Currently only ECB, CBC modes supported. Add new
3703 Add TLS AES ciphersuites as described in RFC3268, "Advanced
3704 Encryption Standard (AES) Ciphersuites for Transport Layer
3705 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
3706 not enabled by default and were not part of the "ALL" ciphersuite
3707 alias because they were not yet official; they could be
3708 explicitly requested by specifying the "AESdraft" ciphersuite
3709 group alias. In the final release of OpenSSL 0.9.7, the group
3710 alias is called "AES" and is part of "ALL".)
3711 [Ben Laurie, Steve Henson, Bodo Moeller]
3713 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
3714 request to response.
3717 *) Functions for OCSP responders. OCSP_request_onereq_count(),
3718 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
3719 extract information from a certificate request. OCSP_response_create()
3720 creates a response and optionally adds a basic response structure.
3721 OCSP_basic_add1_status() adds a complete single response to a basic
3722 response and returns the OCSP_SINGLERESP structure just added (to allow
3723 extensions to be included for example). OCSP_basic_add1_cert() adds a
3724 certificate to a basic response and OCSP_basic_sign() signs a basic
3725 response with various flags. New helper functions ASN1_TIME_check()
3726 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
3727 (converts ASN1_TIME to GeneralizedTime).
3730 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
3731 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
3732 structure from a certificate. X509_pubkey_digest() digests the public_key
3733 contents: this is used in various key identifiers.
3736 *) Make sk_sort() tolerate a NULL argument.
3737 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
3739 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
3740 passed by the function are trusted implicitly. If any of them signed the
3741 response then it is assumed to be valid and is not verified.
3744 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
3745 to data. This was previously part of the PKCS7 ASN1 code. This
3746 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
3747 [Steve Henson, reported by Kenneth R. Robinette
3748 <support@securenetterm.com>]
3750 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
3751 routines: without these tracing memory leaks is very painful.
3752 Fix leaks in PKCS12 and PKCS7 routines.
3755 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
3756 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
3757 effectively meant GeneralizedTime would never be used. Now it
3758 is initialised to -1 but X509_time_adj() now has to check the value
3759 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
3760 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
3761 [Steve Henson, reported by Kenneth R. Robinette
3762 <support@securenetterm.com>]
3764 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
3765 result in a zero length in the ASN1_INTEGER structure which was
3766 not consistent with the structure when d2i_ASN1_INTEGER() was used
3767 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
3768 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
3769 where it did not print out a minus for negative ASN1_INTEGER.
3772 *) Add summary printout to ocsp utility. The various functions which
3773 convert status values to strings have been renamed to:
3774 OCSP_response_status_str(), OCSP_cert_status_str() and
3775 OCSP_crl_reason_str() and are no longer static. New options
3776 to verify nonce values and to disable verification. OCSP response
3777 printout format cleaned up.
3780 *) Add additional OCSP certificate checks. These are those specified
3781 in RFC2560. This consists of two separate checks: the CA of the
3782 certificate being checked must either be the OCSP signer certificate
3783 or the issuer of the OCSP signer certificate. In the latter case the
3784 OCSP signer certificate must contain the OCSP signing extended key
3785 usage. This check is performed by attempting to match the OCSP
3786 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
3787 in the OCSP_CERTID structures of the response.
3790 *) Initial OCSP certificate verification added to OCSP_basic_verify()
3791 and related routines. This uses the standard OpenSSL certificate
3792 verify routines to perform initial checks (just CA validity) and
3793 to obtain the certificate chain. Then additional checks will be
3794 performed on the chain. Currently the root CA is checked to see
3795 if it is explicitly trusted for OCSP signing. This is used to set
3796 a root CA as a global signing root: that is any certificate that
3797 chains to that CA is an acceptable OCSP signing certificate.
3800 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
3801 extensions from a separate configuration file.
3802 As when reading extensions from the main configuration file,
3803 the '-extensions ...' option may be used for specifying the
3805 [Massimiliano Pala <madwolf@comune.modena.it>]
3807 *) New OCSP utility. Allows OCSP requests to be generated or
3808 read. The request can be sent to a responder and the output
3809 parsed, outputed or printed in text form. Not complete yet:
3810 still needs to check the OCSP response validity.
3813 *) New subcommands for 'openssl ca':
3814 'openssl ca -status <serial>' prints the status of the cert with
3815 the given serial number (according to the index file).
3816 'openssl ca -updatedb' updates the expiry status of certificates
3818 [Massimiliano Pala <madwolf@comune.modena.it>]
3820 *) New '-newreq-nodes' command option to CA.pl. This is like
3821 '-newreq', but calls 'openssl req' with the '-nodes' option
3822 so that the resulting key is not encrypted.
3823 [Damien Miller <djm@mindrot.org>]
3825 *) New configuration for the GNU Hurd.
3826 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
3828 *) Initial code to implement OCSP basic response verify. This
3829 is currently incomplete. Currently just finds the signer's
3830 certificate and verifies the signature on the response.
3833 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
3834 value of OPENSSLDIR. This is available via the new '-d' option
3835 to 'openssl version', and is also included in 'openssl version -a'.
3838 *) Allowing defining memory allocation callbacks that will be given
3839 file name and line number information in additional arguments
3840 (a const char* and an int). The basic functionality remains, as
3841 well as the original possibility to just replace malloc(),
3842 realloc() and free() by functions that do not know about these
3843 additional arguments. To register and find out the current
3844 settings for extended allocation functions, the following
3845 functions are provided:
3847 CRYPTO_set_mem_ex_functions
3848 CRYPTO_set_locked_mem_ex_functions
3849 CRYPTO_get_mem_ex_functions
3850 CRYPTO_get_locked_mem_ex_functions
3852 These work the same way as CRYPTO_set_mem_functions and friends.
3853 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
3854 extended allocation function is enabled.
3855 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
3856 a conventional allocation function is enabled.
3857 [Richard Levitte, Bodo Moeller]
3859 *) Finish off removing the remaining LHASH function pointer casts.
3860 There should no longer be any prototype-casting required when using
3861 the LHASH abstraction, and any casts that remain are "bugs". See
3862 the callback types and macros at the head of lhash.h for details
3863 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
3866 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
3867 If /dev/[u]random devices are not available or do not return enough
3868 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
3870 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
3871 /etc/entropy will be queried once each in this sequence, quering stops
3872 when enough entropy was collected without querying more sockets.
3875 *) Change the Unix RAND_poll() variant to be able to poll several
3876 random devices, as specified by DEVRANDOM, until a sufficient amount
3877 of data has been collected. We spend at most 10 ms on each file
3878 (select timeout) and read in non-blocking mode. DEVRANDOM now
3879 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
3880 (previously it was just the string "/dev/urandom"), so on typical
3881 platforms the 10 ms delay will never occur.
3882 Also separate out the Unix variant to its own file, rand_unix.c.
3883 For VMS, there's a currently-empty rand_vms.c.
3886 *) Move OCSP client related routines to ocsp_cl.c. These
3887 provide utility functions which an application needing
3888 to issue a request to an OCSP responder and analyse the
3889 response will typically need: as opposed to those which an
3890 OCSP responder itself would need which will be added later.
3892 OCSP_request_sign() signs an OCSP request with an API similar
3893 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
3894 response. OCSP_response_get1_basic() extracts basic response
3895 from response. OCSP_resp_find_status(): finds and extracts status
3896 information from an OCSP_CERTID structure (which will be created
3897 when the request structure is built). These are built from lower
3898 level functions which work on OCSP_SINGLERESP structures but
3899 wont normally be used unless the application wishes to examine
3900 extensions in the OCSP response for example.
3902 Replace nonce routines with a pair of functions.
3903 OCSP_request_add1_nonce() adds a nonce value and optionally
3904 generates a random value. OCSP_check_nonce() checks the
3905 validity of the nonce in an OCSP response.
3908 *) Change function OCSP_request_add() to OCSP_request_add0_id().
3909 This doesn't copy the supplied OCSP_CERTID and avoids the
3910 need to free up the newly created id. Change return type
3911 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
3912 This can then be used to add extensions to the request.
3913 Deleted OCSP_request_new(), since most of its functionality
3914 is now in OCSP_REQUEST_new() (and the case insensitive name
3915 clash) apart from the ability to set the request name which
3916 will be added elsewhere.
3919 *) Update OCSP API. Remove obsolete extensions argument from
3920 various functions. Extensions are now handled using the new
3921 OCSP extension code. New simple OCSP HTTP function which
3922 can be used to send requests and parse the response.
3925 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
3926 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
3927 uses the special reorder version of SET OF to sort the attributes
3928 and reorder them to match the encoded order. This resolves a long
3929 standing problem: a verify on a PKCS7 structure just after signing
3930 it used to fail because the attribute order did not match the
3931 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
3932 it uses the received order. This is necessary to tolerate some broken
3933 software that does not order SET OF. This is handled by encoding
3934 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
3935 to produce the required SET OF.
3938 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
3939 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
3940 files to get correct declarations of the ASN.1 item variables.
3943 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
3944 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
3945 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
3946 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
3947 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
3948 ASN1_ITEM and no wrapper functions.
3951 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
3952 replace the old function pointer based I/O routines. Change most of
3953 the *_d2i_bio() and *_d2i_fp() functions to use these.
3956 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
3957 lines, recognice more "algorithms" that can be deselected, and make
3958 it complain about algorithm deselection that isn't recognised.
3961 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
3962 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
3963 to use new functions. Add NO_ASN1_OLD which can be set to remove
3964 some old style ASN1 functions: this can be used to determine if old
3965 code will still work when these eventually go away.
3968 *) New extension functions for OCSP structures, these follow the
3969 same conventions as certificates and CRLs.
3972 *) New function X509V3_add1_i2d(). This automatically encodes and
3973 adds an extension. Its behaviour can be customised with various
3974 flags to append, replace or delete. Various wrappers added for
3975 certifcates and CRLs.
3978 *) Fix to avoid calling the underlying ASN1 print routine when
3979 an extension cannot be parsed. Correct a typo in the
3980 OCSP_SERVICELOC extension. Tidy up print OCSP format.
3983 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
3984 entries for variables.
3987 *) Add functionality to apps/openssl.c for detecting locking
3988 problems: As the program is single-threaded, all we have
3989 to do is register a locking callback using an array for
3990 storing which locks are currently held by the program.
3993 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
3994 SSL_get_ex_data_X509_STORE_idx(), which is used in
3995 ssl_verify_cert_chain() and thus can be called at any time
3996 during TLS/SSL handshakes so that thread-safety is essential.
3997 Unfortunately, the ex_data design is not at all suited
3998 for multi-threaded use, so it probably should be abolished.
4001 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
4002 [Broadcom, tweaked and integrated by Geoff Thorpe]
4004 *) Move common extension printing code to new function
4005 X509V3_print_extensions(). Reorganise OCSP print routines and
4006 implement some needed OCSP ASN1 functions. Add OCSP extensions.
4009 *) New function X509_signature_print() to remove duplication in some
4013 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
4014 set (this was treated exactly the same as SET OF previously). This
4015 is used to reorder the STACK representing the structure to match the
4016 encoding. This will be used to get round a problem where a PKCS7
4017 structure which was signed could not be verified because the STACK
4018 order did not reflect the encoded order.
4021 *) Reimplement the OCSP ASN1 module using the new code.
4024 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
4025 for its ASN1 operations. The old style function pointers still exist
4026 for now but they will eventually go away.
4029 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
4030 completely replaces the old ASN1 functionality with a table driven
4031 encoder and decoder which interprets an ASN1_ITEM structure describing
4032 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
4033 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
4034 has also been converted to the new form.
4037 *) Change BN_mod_exp_recp so that negative moduli are tolerated
4038 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
4039 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
4040 for negative moduli.
4043 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
4044 of not touching the result's sign bit.
4047 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
4051 *) Changed the LHASH code to use prototypes for callbacks, and created
4052 macros to declare and implement thin (optionally static) functions
4053 that provide type-safety and avoid function pointer casting for the
4054 type-specific callbacks.
4057 *) Added Kerberos Cipher Suites to be used with TLS, as written in
4059 [Veers Staats <staatsvr@asc.hpc.mil>,
4060 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
4062 *) Reformat the FAQ so the different questions and answers can be divided
4063 in sections depending on the subject.
4066 *) Have the zlib compression code load ZLIB.DLL dynamically under
4070 *) New function BN_mod_sqrt for computing square roots modulo a prime
4071 (using the probabilistic Tonelli-Shanks algorithm unless
4072 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
4073 be handled deterministically).
4074 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4076 *) Make BN_mod_inverse faster by explicitly handling small quotients
4077 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
4078 512 bits], about 30% for larger ones [1024 or 2048 bits].)
4081 *) New function BN_kronecker.
4084 *) Fix BN_gcd so that it works on negative inputs; the result is
4085 positive unless both parameters are zero.
4086 Previously something reasonably close to an infinite loop was
4087 possible because numbers could be growing instead of shrinking
4088 in the implementation of Euclid's algorithm.
4091 *) Fix BN_is_word() and BN_is_one() macros to take into account the
4092 sign of the number in question.
4094 Fix BN_is_word(a,w) to work correctly for w == 0.
4096 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
4097 because its test if the absolute value of 'a' equals 'w'.
4098 Note that BN_abs_is_word does *not* handle w == 0 reliably;
4099 it exists mostly for use in the implementations of BN_is_zero(),
4100 BN_is_one(), and BN_is_word().
4103 *) New function BN_swap.
4106 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
4107 the exponentiation functions are more likely to produce reasonable
4108 results on negative inputs.
4111 *) Change BN_mod_mul so that the result is always non-negative.
4112 Previously, it could be negative if one of the factors was negative;
4113 I don't think anyone really wanted that behaviour.
4116 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
4117 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
4118 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
4119 and add new functions:
4128 BN_mod_lshift1_quick
4132 These functions always generate non-negative results.
4134 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
4135 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
4137 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
4138 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
4139 be reduced modulo m.
4140 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4143 The following entry accidentily appeared in the CHANGES file
4144 distributed with OpenSSL 0.9.7. The modifications described in
4145 it do *not* apply to OpenSSL 0.9.7.
4147 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
4148 was actually never needed) and in BN_mul(). The removal in BN_mul()
4149 required a small change in bn_mul_part_recursive() and the addition
4150 of the functions bn_cmp_part_words(), bn_sub_part_words() and
4151 bn_add_part_words(), which do the same thing as bn_cmp_words(),
4152 bn_sub_words() and bn_add_words() except they take arrays with
4157 *) In 'openssl passwd', verify passwords read from the terminal
4158 unless the '-salt' option is used (which usually means that
4159 verification would just waste user's time since the resulting
4160 hash is going to be compared with some given password hash)
4161 or the new '-noverify' option is used.
4163 This is an incompatible change, but it does not affect
4164 non-interactive use of 'openssl passwd' (passwords on the command
4165 line, '-stdin' option, '-in ...' option) and thus should not
4169 *) Remove all references to RSAref, since there's no more need for it.
4172 *) Make DSO load along a path given through an environment variable
4173 (SHLIB_PATH) with shl_load().
4176 *) Constify the ENGINE code as a result of BIGNUM constification.
4177 Also constify the RSA code and most things related to it. In a
4178 few places, most notable in the depth of the ASN.1 code, ugly
4179 casts back to non-const were required (to be solved at a later
4183 *) Make it so the openssl application has all engines loaded by default.
4186 *) Constify the BIGNUM routines a little more.
4189 *) Add the following functions:
4191 ENGINE_load_cswift()
4193 ENGINE_load_atalla()
4195 ENGINE_load_builtin_engines()
4197 That way, an application can itself choose if external engines that
4198 are built-in in OpenSSL shall ever be used or not. The benefit is
4199 that applications won't have to be linked with libdl or other dso
4200 libraries unless it's really needed.
4202 Changed 'openssl engine' to load all engines on demand.
4203 Changed the engine header files to avoid the duplication of some
4204 declarations (they differed!).
4207 *) 'openssl engine' can now list capabilities.
4210 *) Better error reporting in 'openssl engine'.
4213 *) Never call load_dh_param(NULL) in s_server.
4216 *) Add engine application. It can currently list engines by name and
4217 identity, and test if they are actually available.
4220 *) Improve RPM specification file by forcing symbolic linking and making
4221 sure the installed documentation is also owned by root.root.
4222 [Damien Miller <djm@mindrot.org>]
4224 *) Give the OpenSSL applications more possibilities to make use of
4225 keys (public as well as private) handled by engines.
4228 *) Add OCSP code that comes from CertCo.
4231 *) Add VMS support for the Rijndael code.
4234 *) Added untested support for Nuron crypto accelerator.
4237 *) Add support for external cryptographic devices. This code was
4238 previously distributed separately as the "engine" branch.
4239 [Geoff Thorpe, Richard Levitte]
4241 *) Rework the filename-translation in the DSO code. It is now possible to
4242 have far greater control over how a "name" is turned into a filename
4243 depending on the operating environment and any oddities about the
4244 different shared library filenames on each system.
4247 *) Support threads on FreeBSD-elf in Configure.
4250 *) Fix for SHA1 assembly problem with MASM: it produces
4251 warnings about corrupt line number information when assembling
4252 with debugging information. This is caused by the overlapping
4254 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
4257 NCONF_get_number() has no error checking at all. As a replacement,
4258 NCONF_get_number_e() is defined (_e for "error checking") and is
4259 promoted strongly. The old NCONF_get_number is kept around for
4260 binary backward compatibility.
4261 Make it possible for methods to load from something other than a BIO,
4262 by providing a function pointer that is given a name instead of a BIO.
4263 For example, this could be used to load configuration data from an
4267 *) Fix for non blocking accept BIOs. Added new I/O special reason
4268 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
4269 with non blocking I/O was not possible because no retry code was
4270 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
4274 *) Added the beginnings of Rijndael support.
4277 *) Fix for bug in DirectoryString mask setting. Add support for
4278 X509_NAME_print_ex() in 'req' and X509_print_ex() function
4279 to allow certificate printing to more controllable, additional
4280 'certopt' option to 'x509' to allow new printing options to be
4284 *) Clean old EAY MD5 hack from e_os.h.
4287 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
4289 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
4290 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
4291 [Joe Orton, Steve Henson]
4293 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
4295 *) Fix additional bug revealed by the NISCC test suite:
4297 Stop bug triggering large recursion when presented with
4298 certain ASN.1 tags (CVE-2003-0851)
4301 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
4303 *) Fix various bugs revealed by running the NISCC test suite:
4305 Stop out of bounds reads in the ASN1 code when presented with
4306 invalid tags (CVE-2003-0543 and CVE-2003-0544).
4308 If verify callback ignores invalid public key errors don't try to check
4309 certificate signature with the NULL public key.
4313 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
4314 if the server requested one: as stated in TLS 1.0 and SSL 3.0
4318 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
4319 extra data after the compression methods not only for TLS 1.0
4320 but also for SSL 3.0 (as required by the specification).
4321 [Bodo Moeller; problem pointed out by Matthias Loepfe]
4323 *) Change X509_certificate_type() to mark the key as exported/exportable
4324 when it's 512 *bits* long, not 512 bytes.
4327 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
4329 *) Countermeasure against the Klima-Pokorny-Rosa extension of
4330 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
4331 a protocol version number mismatch like a decryption error
4332 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
4335 *) Turn on RSA blinding by default in the default implementation
4336 to avoid a timing attack. Applications that don't want it can call
4337 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
4338 They would be ill-advised to do so in most cases.
4339 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
4341 *) Change RSA blinding code so that it works when the PRNG is not
4342 seeded (in this case, the secret RSA exponent is abused as
4343 an unpredictable seed -- if it is not unpredictable, there
4344 is no point in blinding anyway). Make RSA blinding thread-safe
4345 by remembering the creator's thread ID in rsa->blinding and
4346 having all other threads use local one-time blinding factors
4347 (this requires more computation than sharing rsa->blinding, but
4348 avoids excessive locking; and if an RSA object is not shared
4349 between threads, blinding will still be very fast).
4352 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
4354 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
4355 via timing by performing a MAC computation even if incorrrect
4356 block cipher padding has been found. This is a countermeasure
4357 against active attacks where the attacker has to distinguish
4358 between bad padding and a MAC verification error. (CVE-2003-0078)
4360 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
4361 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
4362 Martin Vuagnoux (EPFL, Ilion)]
4364 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
4366 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
4367 memory from it's contents. This is done with a counter that will
4368 place alternating values in each byte. This can be used to solve
4369 two issues: 1) the removal of calls to memset() by highly optimizing
4370 compilers, and 2) cleansing with other values than 0, since those can
4371 be read through on certain media, for example a swap space on disk.
4374 *) Bugfix: client side session caching did not work with external caching,
4375 because the session->cipher setting was not restored when reloading
4376 from the external cache. This problem was masked, when
4377 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
4378 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
4381 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
4382 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
4383 [Zeev Lieber <zeev-l@yahoo.com>]
4385 *) Undo an undocumented change introduced in 0.9.6e which caused
4386 repeated calls to OpenSSL_add_all_ciphers() and
4387 OpenSSL_add_all_digests() to be ignored, even after calling
4391 *) Change the default configuration reader to deal with last line not
4392 being properly terminated.
4395 *) Change X509_NAME_cmp() so it applies the special rules on handling
4396 DN values that are of type PrintableString, as well as RDNs of type
4397 emailAddress where the value has the type ia5String.
4398 [stefank@valicert.com via Richard Levitte]
4400 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
4401 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
4402 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
4403 the bitwise-OR of the two for use by the majority of applications
4404 wanting this behaviour, and update the docs. The documented
4405 behaviour and actual behaviour were inconsistent and had been
4406 changing anyway, so this is more a bug-fix than a behavioural
4408 [Geoff Thorpe, diagnosed by Nadav Har'El]
4410 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
4411 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
4414 *) Fix initialization code race conditions in
4415 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
4416 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
4417 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
4418 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
4419 ssl2_get_cipher_by_char(),
4420 ssl3_get_cipher_by_char().
4421 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
4423 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
4424 the cached sessions are flushed, as the remove_cb() might use ex_data
4425 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
4426 (see [openssl.org #212]).
4427 [Geoff Thorpe, Lutz Jaenicke]
4429 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
4430 length, instead of the encoding length to d2i_ASN1_OBJECT.
4433 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
4435 *) [In 0.9.6g-engine release:]
4436 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
4437 [Lynn Gazis <lgazis@rainbow.com>]
4439 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
4441 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
4442 and get fix the header length calculation.
4443 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
4444 Alon Kantor <alonk@checkpoint.com> (and others),
4447 *) Use proper error handling instead of 'assertions' in buffer
4448 overflow checks added in 0.9.6e. This prevents DoS (the
4449 assertions could call abort()).
4450 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
4452 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
4454 *) Add various sanity checks to asn1_get_length() to reject
4455 the ASN1 length bytes if they exceed sizeof(long), will appear
4456 negative or the content length exceeds the length of the
4458 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4460 *) Fix cipher selection routines: ciphers without encryption had no flags
4461 for the cipher strength set and where therefore not handled correctly
4462 by the selection routines (PR #130).
4465 *) Fix EVP_dsa_sha macro.
4469 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
4470 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
4471 that was added in OpenSSL 0.9.6d.
4473 As the countermeasure turned out to be incompatible with some
4474 broken SSL implementations, the new option is part of SSL_OP_ALL.
4475 SSL_OP_ALL is usually employed when compatibility with weird SSL
4476 implementations is desired (e.g. '-bugs' option to 's_client' and
4477 's_server'), so the new option is automatically set in many
4481 *) Changes in security patch:
4483 Changes marked "(CHATS)" were sponsored by the Defense Advanced
4484 Research Projects Agency (DARPA) and Air Force Research Laboratory,
4485 Air Force Materiel Command, USAF, under agreement number
4488 *) Add various sanity checks to asn1_get_length() to reject
4489 the ASN1 length bytes if they exceed sizeof(long), will appear
4490 negative or the content length exceeds the length of the
4491 supplied buffer. (CVE-2002-0659)
4492 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4494 *) Assertions for various potential buffer overflows, not known to
4496 [Ben Laurie (CHATS)]
4498 *) Various temporary buffers to hold ASCII versions of integers were
4499 too small for 64 bit platforms. (CVE-2002-0655)
4500 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
4502 *) Remote buffer overflow in SSL3 protocol - an attacker could
4503 supply an oversized session ID to a client. (CVE-2002-0656)
4504 [Ben Laurie (CHATS)]
4506 *) Remote buffer overflow in SSL2 protocol - an attacker could
4507 supply an oversized client master key. (CVE-2002-0656)
4508 [Ben Laurie (CHATS)]
4510 Changes between 0.9.6c and 0.9.6d [9 May 2002]
4512 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
4513 encoded as NULL) with id-dsa-with-sha1.
4514 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
4516 *) Check various X509_...() return values in apps/req.c.
4517 [Nils Larsch <nla@trustcenter.de>]
4519 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
4520 an end-of-file condition would erronously be flagged, when the CRLF
4521 was just at the end of a processed block. The bug was discovered when
4522 processing data through a buffering memory BIO handing the data to a
4523 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
4524 <ptsekov@syntrex.com> and Nedelcho Stanev.
4527 *) Implement a countermeasure against a vulnerability recently found
4528 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
4529 before application data chunks to avoid the use of known IVs
4530 with data potentially chosen by the attacker.
4533 *) Fix length checks in ssl3_get_client_hello().
4536 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
4537 to prevent ssl3_read_internal() from incorrectly assuming that
4538 ssl3_read_bytes() found application data while handshake
4539 processing was enabled when in fact s->s3->in_read_app_data was
4540 merely automatically cleared during the initial handshake.
4541 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
4543 *) Fix object definitions for Private and Enterprise: they were not
4544 recognized in their shortname (=lowercase) representation. Extend
4545 obj_dat.pl to issue an error when using undefined keywords instead
4546 of silently ignoring the problem (Svenning Sorensen
4547 <sss@sss.dnsalias.net>).
4550 *) Fix DH_generate_parameters() so that it works for 'non-standard'
4551 generators, i.e. generators other than 2 and 5. (Previously, the
4552 code did not properly initialise the 'add' and 'rem' values to
4553 BN_generate_prime().)
4555 In the new general case, we do not insist that 'generator' is
4556 actually a primitive root: This requirement is rather pointless;
4557 a generator of the order-q subgroup is just as good, if not
4561 *) Map new X509 verification errors to alerts. Discovered and submitted by
4562 Tom Wu <tom@arcot.com>.
4565 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
4566 returning non-zero before the data has been completely received
4567 when using non-blocking I/O.
4568 [Bodo Moeller; problem pointed out by John Hughes]
4570 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
4571 [Ben Laurie, Lutz Jaenicke]
4573 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
4574 Yoram Zahavi <YoramZ@gilian.com>).
4577 *) Add information about CygWin 1.3 and on, and preserve proper
4578 configuration for the versions before that.
4579 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
4581 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
4582 check whether we deal with a copy of a session and do not delete from
4583 the cache in this case. Problem reported by "Izhar Shoshani Levi"
4584 <izhar@checkpoint.com>.
4587 *) Do not store session data into the internal session cache, if it
4588 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
4589 flag is set). Proposed by Aslam <aslam@funk.com>.
4592 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
4596 *) [In 0.9.6d-engine release:]
4597 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4598 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4600 *) Add the configuration target linux-s390x.
4601 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
4603 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
4604 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
4605 variable as an indication that a ClientHello message has been
4606 received. As the flag value will be lost between multiple
4607 invocations of ssl3_accept when using non-blocking I/O, the
4608 function may not be aware that a handshake has actually taken
4609 place, thus preventing a new session from being added to the
4612 To avoid this problem, we now set s->new_session to 2 instead of
4613 using a local variable.
4614 [Lutz Jaenicke, Bodo Moeller]
4616 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
4617 if the SSL_R_LENGTH_MISMATCH error is detected.
4618 [Geoff Thorpe, Bodo Moeller]
4620 *) New 'shared_ldflag' column in Configure platform table.
4623 *) Fix EVP_CIPHER_mode macro.
4624 ["Dan S. Camper" <dan@bti.net>]
4626 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
4627 type, we must throw them away by setting rr->length to 0.
4628 [D P Chang <dpc@qualys.com>]
4630 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
4632 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
4633 <Dominikus.Scherkl@biodata.com>. (The previous implementation
4634 worked incorrectly for those cases where range = 10..._2 and
4635 3*range is two bits longer than range.)
4638 *) Only add signing time to PKCS7 structures if it is not already
4642 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
4643 OBJ_ld_ce should be OBJ_id_ce.
4644 Also some ip-pda OIDs in crypto/objects/objects.txt were
4645 incorrect (cf. RFC 3039).
4646 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
4648 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
4649 returns early because it has nothing to do.
4650 [Andy Schneider <andy.schneider@bjss.co.uk>]
4652 *) [In 0.9.6c-engine release:]
4653 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
4654 [Andy Schneider <andy.schneider@bjss.co.uk>]
4656 *) [In 0.9.6c-engine release:]
4657 Add support for Cryptographic Appliance's keyserver technology.
4658 (Use engine 'keyclient')
4659 [Cryptographic Appliances and Geoff Thorpe]
4661 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
4662 is called via tools/c89.sh because arguments have to be
4663 rearranged (all '-L' options must appear before the first object
4665 [Richard Shapiro <rshapiro@abinitio.com>]
4667 *) [In 0.9.6c-engine release:]
4668 Add support for Broadcom crypto accelerator cards, backported
4670 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
4672 *) [In 0.9.6c-engine release:]
4673 Add support for SureWare crypto accelerator cards from
4674 Baltimore Technologies. (Use engine 'sureware')
4675 [Baltimore Technologies and Mark Cox]
4677 *) [In 0.9.6c-engine release:]
4678 Add support for crypto accelerator cards from Accelerated
4679 Encryption Processing, www.aep.ie. (Use engine 'aep')
4680 [AEP Inc. and Mark Cox]
4682 *) Add a configuration entry for gcc on UnixWare.
4683 [Gary Benson <gbenson@redhat.com>]
4685 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
4686 messages are stored in a single piece (fixed-length part and
4687 variable-length part combined) and fix various bugs found on the way.
4690 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
4691 instead. BIO_gethostbyname() does not know what timeouts are
4692 appropriate, so entries would stay in cache even when they have
4694 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
4696 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
4697 faced with a pathologically small ClientHello fragment that does
4698 not contain client_version: Instead of aborting with an error,
4699 simply choose the highest available protocol version (i.e.,
4700 TLS 1.0 unless it is disabled). In practice, ClientHello
4701 messages are never sent like this, but this change gives us
4702 strictly correct behaviour at least for TLS.
4705 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
4706 never resets s->method to s->ctx->method when called from within
4707 one of the SSL handshake functions.
4708 [Bodo Moeller; problem pointed out by Niko Baric]
4710 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
4711 (sent using the client's version number) if client_version is
4712 smaller than the protocol version in use. Also change
4713 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
4714 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
4715 the client will at least see that alert.
4718 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
4722 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
4723 client receives HelloRequest while in a handshake.
4724 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
4726 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
4727 should end in 'break', not 'goto end' which circuments various
4728 cleanups done in state SSL_ST_OK. But session related stuff
4729 must be disabled for SSL_ST_OK in the case that we just sent a
4732 Also avoid some overhead by not calling ssl_init_wbio_buffer()
4733 before just sending a HelloRequest.
4734 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
4736 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
4737 reveal whether illegal block cipher padding was found or a MAC
4738 verification error occured. (Neither SSLerr() codes nor alerts
4739 are directly visible to potential attackers, but the information
4740 may leak via logfiles.)
4742 Similar changes are not required for the SSL 2.0 implementation
4743 because the number of padding bytes is sent in clear for SSL 2.0,
4744 and the extra bytes are just ignored. However ssl/s2_pkt.c
4745 failed to verify that the purported number of padding bytes is in
4749 *) Add OpenUNIX-8 support including shared libraries
4750 (Boyd Lynn Gerber <gerberb@zenez.com>).
4753 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
4754 'wristwatch attack' using huge encoding parameters (cf.
4755 James H. Manger's CRYPTO 2001 paper). Note that the
4756 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
4757 encoding parameters and hence was not vulnerable.
4760 *) BN_sqr() bug fix.
4761 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
4763 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
4764 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
4765 followed by modular reduction.
4766 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
4768 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
4769 equivalent based on BN_pseudo_rand() instead of BN_rand().
4772 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
4773 This function was broken, as the check for a new client hello message
4774 to handle SGC did not allow these large messages.
4775 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
4778 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
4781 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
4782 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
4785 *) Rework the configuration and shared library support for Tru64 Unix.
4786 The configuration part makes use of modern compiler features and
4787 still retains old compiler behavior for those that run older versions
4788 of the OS. The shared library support part includes a variant that
4789 uses the RPATH feature, and is available through the special
4790 configuration target "alpha-cc-rpath", which will never be selected
4792 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
4794 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
4795 with the same message size as in ssl3_get_certificate_request().
4796 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
4797 messages might inadvertently be reject as too long.
4798 [Petr Lampa <lampa@fee.vutbr.cz>]
4800 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
4803 *) Modified SSL library such that the verify_callback that has been set
4804 specificly for an SSL object with SSL_set_verify() is actually being
4805 used. Before the change, a verify_callback set with this function was
4806 ignored and the verify_callback() set in the SSL_CTX at the time of
4807 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
4808 to allow the necessary settings.
4811 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
4812 explicitly to NULL, as at least on Solaris 8 this seems not always to be
4813 done automatically (in contradiction to the requirements of the C
4814 standard). This made problems when used from OpenSSH.
4817 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
4818 dh->length and always used
4820 BN_rand_range(priv_key, dh->p).
4822 BN_rand_range() is not necessary for Diffie-Hellman, and this
4823 specific range makes Diffie-Hellman unnecessarily inefficient if
4824 dh->length (recommended exponent length) is much smaller than the
4825 length of dh->p. We could use BN_rand_range() if the order of
4826 the subgroup was stored in the DH structure, but we only have
4831 BN_rand(priv_key, l, ...)
4833 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
4839 RSA_eay_public_encrypt
4840 RSA_eay_private_decrypt
4841 RSA_eay_private_encrypt (signing)
4842 RSA_eay_public_decrypt (signature verification)
4844 (default implementations for RSA_public_encrypt,
4845 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
4846 always reject numbers >= n.
4849 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
4850 to synchronize access to 'locking_thread'. This is necessary on
4851 systems where access to 'locking_thread' (an 'unsigned long'
4852 variable) is not atomic.
4855 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
4856 *before* setting the 'crypto_lock_rand' flag. The previous code had
4857 a race condition if 0 is a valid thread ID.
4858 [Travis Vitek <vitek@roguewave.com>]
4860 *) Add support for shared libraries under Irix.
4861 [Albert Chin-A-Young <china@thewrittenword.com>]
4863 *) Add configuration option to build on Linux on both big-endian and
4865 [Ralf Baechle <ralf@uni-koblenz.de>]
4867 *) Add the possibility to create shared libraries on HP-UX.
4870 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
4872 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
4873 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
4874 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
4875 PRNG state recovery was possible based on the output of
4876 one PRNG request appropriately sized to gain knowledge on
4877 'md' followed by enough consecutive 1-byte PRNG requests
4878 to traverse all of 'state'.
4880 1. When updating 'md_local' (the current thread's copy of 'md')
4881 during PRNG output generation, hash all of the previous
4882 'md_local' value, not just the half used for PRNG output.
4884 2. Make the number of bytes from 'state' included into the hash
4885 independent from the number of PRNG bytes requested.
4887 The first measure alone would be sufficient to avoid
4888 Markku-Juhani's attack. (Actually it had never occurred
4889 to me that the half of 'md_local' used for chaining was the
4890 half from which PRNG output bytes were taken -- I had always
4891 assumed that the secret half would be used.) The second
4892 measure makes sure that additional data from 'state' is never
4893 mixed into 'md_local' in small portions; this heuristically
4894 further strengthens the PRNG.
4897 *) Fix crypto/bn/asm/mips3.s.
4900 *) When only the key is given to "enc", the IV is undefined. Print out
4901 an error message in this case.
4904 *) Handle special case when X509_NAME is empty in X509 printing routines.
4907 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
4908 positive and less than q.
4911 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
4912 used: it isn't thread safe and the add_lock_callback should handle
4914 [Paul Rose <Paul.Rose@bridge.com>]
4916 *) Verify that incoming data obeys the block size in
4917 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
4921 [Ulf Möller, Bodo Möller]
4923 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
4924 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
4925 when fixing the server behaviour for backwards-compatible 'client
4926 hello' messages. (Note that the attack is impractical against
4927 SSL 3.0 and TLS 1.0 anyway because length and version checking
4928 means that the probability of guessing a valid ciphertext is
4929 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
4932 Before 0.9.5, the countermeasure (hide the error by generating a
4933 random 'decryption result') did not work properly because
4934 ERR_clear_error() was missing, meaning that SSL_get_error() would
4935 detect the supposedly ignored error.
4937 Both problems are now fixed.
4940 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
4941 (previously it was 1024).
4944 *) Fix for compatibility mode trust settings: ignore trust settings
4945 unless some valid trust or reject settings are present.
4948 *) Fix for blowfish EVP: its a variable length cipher.
4951 *) Fix various bugs related to DSA S/MIME verification. Handle missing
4952 parameters in DSA public key structures and return an error in the
4953 DSA routines if parameters are absent.
4956 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
4957 in the current directory if neither $RANDFILE nor $HOME was set.
4958 RAND_file_name() in 0.9.6a returned NULL in this case. This has
4959 caused some confusion to Windows users who haven't defined $HOME.
4960 Thus RAND_file_name() is changed again: e_os.h can define a
4961 DEFAULT_HOME, which will be used if $HOME is not set.
4962 For Windows, we use "C:"; on other platforms, we still require
4963 environment variables.
4965 *) Move 'if (!initialized) RAND_poll()' into regions protected by
4966 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
4967 having multiple threads call RAND_poll() concurrently.
4970 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
4971 combination of a flag and a thread ID variable.
4972 Otherwise while one thread is in ssleay_rand_bytes (which sets the
4973 flag), *other* threads can enter ssleay_add_bytes without obeying
4974 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
4975 that they do not hold after the first thread unsets add_do_not_lock).
4978 *) Change bctest again: '-x' expressions are not available in all
4982 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
4984 *) Fix a couple of memory leaks in PKCS7_dataDecode()
4985 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
4987 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
4988 the default extension for executables, if any. Also, make the perl
4989 scripts that use symlink() to test if it really exists and use "cp"
4990 if it doesn't. All this made OpenSSL compilable and installable in
4994 *) Fix for asn1_GetSequence() for indefinite length constructed data.
4995 If SEQUENCE is length is indefinite just set c->slen to the total
4996 amount of data available.
4997 [Steve Henson, reported by shige@FreeBSD.org]
4998 [This change does not apply to 0.9.7.]
5000 *) Change bctest to avoid here-documents inside command substitution
5001 (workaround for FreeBSD /bin/sh bug).
5002 For compatibility with Ultrix, avoid shell functions (introduced
5003 in the bctest version that searches along $PATH).
5006 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
5007 with des_encrypt() defined on some operating systems, like Solaris
5011 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
5012 On the Importance of Eliminating Errors in Cryptographic
5013 Computations, J. Cryptology 14 (2001) 2, 101-119,
5014 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
5017 *) MIPS assembler BIGNUM division bug fix.
5020 *) Disabled incorrect Alpha assembler code.
5023 *) Fix PKCS#7 decode routines so they correctly update the length
5024 after reading an EOC for the EXPLICIT tag.
5026 [This change does not apply to 0.9.7.]
5028 *) Fix bug in PKCS#12 key generation routines. This was triggered
5029 if a 3DES key was generated with a 0 initial byte. Include
5030 PKCS12_BROKEN_KEYGEN compilation option to retain the old
5031 (but broken) behaviour.
5034 *) Enhance bctest to search for a working bc along $PATH and print
5036 [Tim Rice <tim@multitalents.net> via Richard Levitte]
5038 *) Fix memory leaks in err.c: free err_data string if necessary;
5039 don't write to the wrong index in ERR_set_error_data.
5042 *) Implement ssl23_peek (analogous to ssl23_read), which previously
5046 *) Replace rdtsc with _emit statements for VC++ version 5.
5047 [Jeremy Cooper <jeremy@baymoo.org>]
5049 *) Make it possible to reuse SSLv2 sessions.
5052 *) In copy_email() check for >= 0 as a return value for
5053 X509_NAME_get_index_by_NID() since 0 is a valid index.
5054 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
5056 *) Avoid coredump with unsupported or invalid public keys by checking if
5057 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
5058 PKCS7_verify() fails with non detached data.
5061 *) Don't use getenv in library functions when run as setuid/setgid.
5062 New function OPENSSL_issetugid().
5065 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
5066 due to incorrect handling of multi-threading:
5068 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
5070 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
5072 3. Count how many times MemCheck_off() has been called so that
5073 nested use can be treated correctly. This also avoids
5074 inband-signalling in the previous code (which relied on the
5075 assumption that thread ID 0 is impossible).
5078 *) Add "-rand" option also to s_client and s_server.
5081 *) Fix CPU detection on Irix 6.x.
5082 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
5083 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5085 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
5088 [This change does not apply to 0.9.7.]
5090 *) Use the cached encoding of an X509_NAME structure rather than
5091 copying it. This is apparently the reason for the libsafe "errors"
5092 but the code is actually correct.
5095 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
5096 Bleichenbacher's DSA attack.
5097 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
5098 to be set and top=0 forces the highest bit to be set; top=-1 is new
5099 and leaves the highest bit random.
5100 [Ulf Moeller, Bodo Moeller]
5102 *) In the NCONF_...-based implementations for CONF_... queries
5103 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
5104 a temporary CONF structure with the data component set to NULL
5105 (which gives segmentation faults in lh_retrieve).
5106 Instead, use NULL for the CONF pointer in CONF_get_string and
5107 CONF_get_number (which may use environment variables) and directly
5108 return NULL from CONF_get_section.
5111 *) Fix potential buffer overrun for EBCDIC.
5114 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
5115 keyUsage if basicConstraints absent for a CA.
5118 *) Make SMIME_write_PKCS7() write mail header values with a format that
5119 is more generally accepted (no spaces before the semicolon), since
5120 some programs can't parse those values properly otherwise. Also make
5121 sure BIO's that break lines after each write do not create invalid
5125 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
5126 macros previously used would not encode an empty SEQUENCE OF
5127 and break the signature.
5129 [This change does not apply to 0.9.7.]
5131 *) Zero the premaster secret after deriving the master secret in
5135 *) Add some EVP_add_digest_alias registrations (as found in
5136 OpenSSL_add_all_digests()) to SSL_library_init()
5137 aka OpenSSL_add_ssl_algorithms(). This provides improved
5138 compatibility with peers using X.509 certificates
5139 with unconventional AlgorithmIdentifier OIDs.
5142 *) Fix for Irix with NO_ASM.
5143 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5145 *) ./config script fixes.
5146 [Ulf Moeller, Richard Levitte]
5148 *) Fix 'openssl passwd -1'.
5151 *) Change PKCS12_key_gen_asc() so it can cope with non null
5152 terminated strings whose length is passed in the passlen
5153 parameter, for example from PEM callbacks. This was done
5154 by adding an extra length parameter to asc2uni().
5155 [Steve Henson, reported by <oddissey@samsung.co.kr>]
5157 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
5158 call failed, free the DSA structure.
5161 *) Fix to uni2asc() to cope with zero length Unicode strings.
5162 These are present in some PKCS#12 files.
5165 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
5166 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
5167 when writing a 32767 byte record.
5168 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
5170 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
5171 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
5173 (RSA objects have a reference count access to which is protected
5174 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
5175 so they are meant to be shared between threads.)
5176 [Bodo Moeller, Geoff Thorpe; original patch submitted by
5177 "Reddie, Steven" <Steven.Reddie@ca.com>]
5179 *) Fix a deadlock in CRYPTO_mem_leaks().
5182 *) Use better test patterns in bntest.
5185 *) rand_win.c fix for Borland C.
5188 *) BN_rshift bugfix for n == 0.
5191 *) Add a 'bctest' script that checks for some known 'bc' bugs
5192 so that 'make test' does not abort just because 'bc' is broken.
5195 *) Store verify_result within SSL_SESSION also for client side to
5196 avoid potential security hole. (Re-used sessions on the client side
5197 always resulted in verify_result==X509_V_OK, not using the original
5198 result of the server certificate verification.)
5201 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
5202 SSL3_RT_APPLICATION_DATA, return 0.
5203 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
5207 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
5208 releases, have been re-implemented by renaming the previous
5209 implementations of ssl2_read and ssl3_read to ssl2_read_internal
5210 and ssl3_read_internal, respectively, and adding 'peek' parameters
5211 to them. The new ssl[23]_{read,peek} functions are calls to
5212 ssl[23]_read_internal with the 'peek' flag set appropriately.
5213 A 'peek' parameter has also been added to ssl3_read_bytes, which
5214 does the actual work for ssl3_read_internal.
5217 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
5218 the method-specific "init()" handler. Also clean up ex_data after
5219 calling the method-specific "finish()" handler. Previously, this was
5220 happening the other way round.
5223 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
5224 The previous value, 12, was not always sufficient for BN_mod_exp().
5227 *) Make sure that shared libraries get the internal name engine with
5228 the full version number and not just 0. This should mark the
5229 shared libraries as not backward compatible. Of course, this should
5230 be changed again when we can guarantee backward binary compatibility.
5233 *) Fix typo in get_cert_by_subject() in by_dir.c
5234 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
5236 *) Rework the system to generate shared libraries:
5238 - Make note of the expected extension for the shared libraries and
5239 if there is a need for symbolic links from for example libcrypto.so.0
5240 to libcrypto.so.0.9.7. There is extended info in Configure for
5243 - Make as few rebuilds of the shared libraries as possible.
5245 - Still avoid linking the OpenSSL programs with the shared libraries.
5247 - When installing, install the shared libraries separately from the
5251 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
5253 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
5254 and not in SSL_clear because the latter is also used by the
5255 accept/connect functions; previously, the settings made by
5256 SSL_set_read_ahead would be lost during the handshake.
5257 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
5259 *) Correct util/mkdef.pl to be selective about disabled algorithms.
5260 Previously, it would create entries for disableed algorithms no
5264 *) Added several new manual pages for SSL_* function.
5267 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
5269 *) In ssl23_get_client_hello, generate an error message when faced
5270 with an initial SSL 3.0/TLS record that is too small to contain the
5271 first two bytes of the ClientHello message, i.e. client_version.
5272 (Note that this is a pathologic case that probably has never happened
5273 in real life.) The previous approach was to use the version number
5274 from the record header as a substitute; but our protocol choice
5275 should not depend on that one because it is not authenticated
5276 by the Finished messages.
5279 *) More robust randomness gathering functions for Windows.
5280 [Jeffrey Altman <jaltman@columbia.edu>]
5282 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
5283 not set then we don't setup the error code for issuer check errors
5284 to avoid possibly overwriting other errors which the callback does
5285 handle. If an application does set the flag then we assume it knows
5286 what it is doing and can handle the new informational codes
5290 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
5291 a general "ANY" type, as such it should be able to decode anything
5292 including tagged types. However it didn't check the class so it would
5293 wrongly interpret tagged types in the same way as their universal
5294 counterpart and unknown types were just rejected. Changed so that the
5295 tagged and unknown types are handled in the same way as a SEQUENCE:
5296 that is the encoding is stored intact. There is also a new type
5297 "V_ASN1_OTHER" which is used when the class is not universal, in this
5298 case we have no idea what the actual type is so we just lump them all
5302 *) On VMS, stdout may very well lead to a file that is written to
5303 in a record-oriented fashion. That means that every write() will
5304 write a separate record, which will be read separately by the
5305 programs trying to read from it. This can be very confusing.
5307 The solution is to put a BIO filter in the way that will buffer
5308 text until a linefeed is reached, and then write everything a
5309 line at a time, so every record written will be an actual line,
5310 not chunks of lines and not (usually doesn't happen, but I've
5311 seen it once) several lines in one record. BIO_f_linebuffer() is
5314 Currently, it's a VMS-only method, because that's where it has
5315 been tested well enough.
5318 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
5319 it can return incorrect results.
5320 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
5321 but it was in 0.9.6-beta[12].)
5324 *) Disable the check for content being present when verifying detached
5325 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
5326 include zero length content when signing messages.
5329 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
5330 BIO_ctrl (for BIO pairs).
5333 *) Add DSO method for VMS.
5336 *) Bug fix: Montgomery multiplication could produce results with the
5340 *) Add RPM specification openssl.spec and modify it to build three
5341 packages. The default package contains applications, application
5342 documentation and run-time libraries. The devel package contains
5343 include files, static libraries and function documentation. The
5344 doc package contains the contents of the doc directory. The original
5345 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
5348 *) Add a large number of documentation files for many SSL routines.
5349 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5351 *) Add a configuration entry for Sony News 4.
5352 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
5354 *) Don't set the two most significant bits to one when generating a
5355 random number < q in the DSA library.
5358 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
5359 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
5360 the underlying transport is blocking) if a handshake took place.
5361 (The default behaviour is needed by applications such as s_client
5362 and s_server that use select() to determine when to use SSL_read;
5363 but for applications that know in advance when to expect data, it
5364 just makes things more complicated.)
5367 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
5371 *) Add a few more EBCDIC conditionals that make `req' and `x509'
5372 work better on such systems.
5373 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
5375 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
5376 Update PKCS12_parse() so it copies the friendlyName and the
5377 keyid to the certificates aux info.
5380 *) Fix bug in PKCS7_verify() which caused an infinite loop
5381 if there was more than one signature.
5382 [Sven Uszpelkat <su@celocom.de>]
5384 *) Major change in util/mkdef.pl to include extra information
5385 about each symbol, as well as presentig variables as well
5386 as functions. This change means that there's n more need
5387 to rebuild the .num files when some algorithms are excluded.
5390 *) Allow the verify time to be set by an application,
5391 rather than always using the current time.
5394 *) Phase 2 verify code reorganisation. The certificate
5395 verify code now looks up an issuer certificate by a
5396 number of criteria: subject name, authority key id
5397 and key usage. It also verifies self signed certificates
5398 by the same criteria. The main comparison function is
5399 X509_check_issued() which performs these checks.
5401 Lot of changes were necessary in order to support this
5402 without completely rewriting the lookup code.
5404 Authority and subject key identifier are now cached.
5406 The LHASH 'certs' is X509_STORE has now been replaced
5407 by a STACK_OF(X509_OBJECT). This is mainly because an
5408 LHASH can't store or retrieve multiple objects with
5409 the same hash value.
5411 As a result various functions (which were all internal
5412 use only) have changed to handle the new X509_STORE
5413 structure. This will break anything that messed round
5414 with X509_STORE internally.
5416 The functions X509_STORE_add_cert() now checks for an
5417 exact match, rather than just subject name.
5419 The X509_STORE API doesn't directly support the retrieval
5420 of multiple certificates matching a given criteria, however
5421 this can be worked round by performing a lookup first
5422 (which will fill the cache with candidate certificates)
5423 and then examining the cache for matches. This is probably
5424 the best we can do without throwing out X509_LOOKUP
5425 entirely (maybe later...).
5427 The X509_VERIFY_CTX structure has been enhanced considerably.
5429 All certificate lookup operations now go via a get_issuer()
5430 callback. Although this currently uses an X509_STORE it
5431 can be replaced by custom lookups. This is a simple way
5432 to bypass the X509_STORE hackery necessary to make this
5433 work and makes it possible to use more efficient techniques
5434 in future. A very simple version which uses a simple
5435 STACK for its trusted certificate store is also provided
5436 using X509_STORE_CTX_trusted_stack().
5438 The verify_cb() and verify() callbacks now have equivalents
5439 in the X509_STORE_CTX structure.
5441 X509_STORE_CTX also has a 'flags' field which can be used
5442 to customise the verify behaviour.
5445 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
5446 excludes S/MIME capabilities.
5449 *) When a certificate request is read in keep a copy of the
5450 original encoding of the signed data and use it when outputing
5451 again. Signatures then use the original encoding rather than
5452 a decoded, encoded version which may cause problems if the
5453 request is improperly encoded.
5456 *) For consistency with other BIO_puts implementations, call
5457 buffer_write(b, ...) directly in buffer_puts instead of calling
5460 In BIO_puts, increment b->num_write as in BIO_write.
5461 [Peter.Sylvester@EdelWeb.fr]
5463 *) Fix BN_mul_word for the case where the word is 0. (We have to use
5464 BN_zero, we may not return a BIGNUM with an array consisting of
5468 *) Avoid calling abort() from within the library when problems are
5469 detected, except if preprocessor symbols have been defined
5470 (such as REF_CHECK, BN_DEBUG etc.).
5473 *) New openssl application 'rsautl'. This utility can be
5474 used for low level RSA operations. DER public key
5475 BIO/fp routines also added.
5478 *) New Configure entry and patches for compiling on QNX 4.
5479 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
5481 *) A demo state-machine implementation was sponsored by
5482 Nuron (http://www.nuron.com/) and is now available in
5483 demos/state_machine.
5486 *) New options added to the 'dgst' utility for signature
5487 generation and verification.
5490 *) Unrecognized PKCS#7 content types are now handled via a
5491 catch all ASN1_TYPE structure. This allows unsupported
5492 types to be stored as a "blob" and an application can
5493 encode and decode it manually.
5496 *) Fix various signed/unsigned issues to make a_strex.c
5498 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
5500 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
5501 length if passed a buffer. ASN1_INTEGER_to_BN failed
5502 if passed a NULL BN and its argument was negative.
5503 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
5505 *) Modification to PKCS#7 encoding routines to output definite
5506 length encoding. Since currently the whole structures are in
5507 memory there's not real point in using indefinite length
5508 constructed encoding. However if OpenSSL is compiled with
5509 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
5512 *) Added BIO_vprintf() and BIO_vsnprintf().
5515 *) Added more prefixes to parse for in the the strings written
5516 through a logging bio, to cover all the levels that are available
5517 through syslog. The prefixes are now:
5519 PANIC, EMERG, EMR => LOG_EMERG
5520 ALERT, ALR => LOG_ALERT
5521 CRIT, CRI => LOG_CRIT
5522 ERROR, ERR => LOG_ERR
5523 WARNING, WARN, WAR => LOG_WARNING
5524 NOTICE, NOTE, NOT => LOG_NOTICE
5525 INFO, INF => LOG_INFO
5526 DEBUG, DBG => LOG_DEBUG
5528 and as before, if none of those prefixes are present at the
5529 beginning of the string, LOG_ERR is chosen.
5531 On Win32, the LOG_* levels are mapped according to this:
5533 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
5534 LOG_WARNING => EVENTLOG_WARNING_TYPE
5535 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
5539 *) Made it possible to reconfigure with just the configuration
5540 argument "reconf" or "reconfigure". The command line arguments
5541 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
5542 and are retrieved from there when reconfiguring.
5546 [Assar Westerlund <assar@sics.se>, Richard Levitte]
5548 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
5551 *) The obj_dat.pl script was messing up the sorting of object
5552 names. The reason was that it compared the quoted version
5553 of strings as a result "OCSP" > "OCSP Signing" because
5554 " > SPACE. Changed script to store unquoted versions of
5555 names and add quotes on output. It was also omitting some
5556 names from the lookup table if they were given a default
5557 value (that is if SN is missing it is given the same
5558 value as LN and vice versa), these are now added on the
5559 grounds that if an object has a name we should be able to
5560 look it up. Finally added warning output when duplicate
5561 short or long names are found.
5564 *) Changes needed for Tandem NSK.
5565 [Scott Uroff <scott@xypro.com>]
5567 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
5568 RSA_padding_check_SSLv23(), special padding was never detected
5569 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
5570 version rollback attacks was not effective.
5572 In s23_clnt.c, don't use special rollback-attack detection padding
5573 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
5574 client; similarly, in s23_srvr.c, don't do the rollback check if
5575 SSL 2.0 is the only protocol enabled in the server.
5578 *) Make it possible to get hexdumps of unprintable data with 'openssl
5579 asn1parse'. By implication, the functions ASN1_parse_dump() and
5580 BIO_dump_indent() are added.
5583 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
5584 these print out strings and name structures based on various
5585 flags including RFC2253 support and proper handling of
5586 multibyte characters. Added options to the 'x509' utility
5587 to allow the various flags to be set.
5590 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
5591 Also change the functions X509_cmp_current_time() and
5592 X509_gmtime_adj() work with an ASN1_TIME structure,
5593 this will enable certificates using GeneralizedTime in validity
5594 dates to be checked.
5597 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
5598 negative public key encodings) on by default,
5599 NO_NEG_PUBKEY_BUG can be set to disable it.
5602 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
5603 content octets. An i2c_ASN1_OBJECT is unnecessary because
5604 the encoding can be trivially obtained from the structure.
5607 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
5608 not read locks (CRYPTO_r_[un]lock).
5611 *) A first attempt at creating official support for shared
5612 libraries through configuration. I've kept it so the
5613 default is static libraries only, and the OpenSSL programs
5614 are always statically linked for now, but there are
5615 preparations for dynamic linking in place.
5616 This has been tested on Linux and Tru64.
5619 *) Randomness polling function for Win9x, as described in:
5620 Peter Gutmann, Software Generation of Practically Strong
5624 *) Fix so PRNG is seeded in req if using an already existing
5628 *) New options to smime application. -inform and -outform
5629 allow alternative formats for the S/MIME message including
5630 PEM and DER. The -content option allows the content to be
5631 specified separately. This should allow things like Netscape
5632 form signing output easier to verify.
5635 *) Fix the ASN1 encoding of tags using the 'long form'.
5638 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
5639 STRING types. These convert content octets to and from the
5640 underlying type. The actual tag and length octets are
5641 already assumed to have been read in and checked. These
5642 are needed because all other string types have virtually
5643 identical handling apart from the tag. By having versions
5644 of the ASN1 functions that just operate on content octets
5645 IMPLICIT tagging can be handled properly. It also allows
5646 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
5647 and ASN1_INTEGER are identical apart from the tag.
5650 *) Change the handling of OID objects as follows:
5652 - New object identifiers are inserted in objects.txt, following
5653 the syntax given in objects.README.
5654 - objects.pl is used to process obj_mac.num and create a new
5656 - obj_dat.pl is used to create a new obj_dat.h, using the data in
5659 This is currently kind of a hack, and the perl code in objects.pl
5660 isn't very elegant, but it works as I intended. The simplest way
5661 to check that it worked correctly is to look in obj_dat.h and
5662 check the array nid_objs and make sure the objects haven't moved
5663 around (this is important!). Additions are OK, as well as
5664 consistent name changes.
5667 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
5670 *) Addition of the command line parameter '-rand file' to 'openssl req'.
5671 The given file adds to whatever has already been seeded into the
5672 random pool through the RANDFILE configuration file option or
5673 environment variable, or the default random state file.
5676 *) mkstack.pl now sorts each macro group into lexical order.
5677 Previously the output order depended on the order the files
5678 appeared in the directory, resulting in needless rewriting
5682 *) Patches to make OpenSSL compile under Win32 again. Mostly
5683 work arounds for the VC++ problem that it treats func() as
5684 func(void). Also stripped out the parts of mkdef.pl that
5685 added extra typesafe functions: these no longer exist.
5688 *) Reorganisation of the stack code. The macros are now all
5689 collected in safestack.h . Each macro is defined in terms of
5690 a "stack macro" of the form SKM_<name>(type, a, b). The
5691 DEBUG_SAFESTACK is now handled in terms of function casts,
5692 this has the advantage of retaining type safety without the
5693 use of additional functions. If DEBUG_SAFESTACK is not defined
5694 then the non typesafe macros are used instead. Also modified the
5695 mkstack.pl script to handle the new form. Needs testing to see
5696 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
5697 the default if no major problems. Similar behaviour for ASN1_SET_OF
5698 and PKCS12_STACK_OF.
5701 *) When some versions of IIS use the 'NET' form of private key the
5702 key derivation algorithm is different. Normally MD5(password) is
5703 used as a 128 bit RC4 key. In the modified case
5704 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
5705 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
5706 as the old Netscape_RSA functions except they have an additional
5707 'sgckey' parameter which uses the modified algorithm. Also added
5708 an -sgckey command line option to the rsa utility. Thanks to
5709 Adrian Peck <bertie@ncipher.com> for posting details of the modified
5710 algorithm to openssl-dev.
5713 *) The evp_local.h macros were using 'c.##kname' which resulted in
5714 invalid expansion on some systems (SCO 5.0.5 for example).
5715 Corrected to 'c.kname'.
5716 [Phillip Porch <root@theporch.com>]
5718 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
5719 a STACK of email addresses from a certificate or request, these look
5720 in the subject name and the subject alternative name extensions and
5721 omit any duplicate addresses.
5724 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
5725 This makes DSA verification about 2 % faster.
5728 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
5729 (meaning that now 2^5 values will be precomputed, which is only 4 KB
5730 plus overhead for 1024 bit moduli).
5731 This makes exponentiations about 0.5 % faster for 1024 bit
5732 exponents (as measured by "openssl speed rsa2048").
5735 *) Rename memory handling macros to avoid conflicts with other
5737 Malloc => OPENSSL_malloc
5738 Malloc_locked => OPENSSL_malloc_locked
5739 Realloc => OPENSSL_realloc
5740 Free => OPENSSL_free
5743 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
5744 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
5747 *) CygWin32 support.
5748 [John Jarvie <jjarvie@newsguy.com>]
5750 *) The type-safe stack code has been rejigged. It is now only compiled
5751 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
5752 by default all type-specific stack functions are "#define"d back to
5753 standard stack functions. This results in more streamlined output
5754 but retains the type-safety checking possibilities of the original
5758 *) The STACK code has been cleaned up, and certain type declarations
5759 that didn't make a lot of sense have been brought in line. This has
5760 also involved a cleanup of sorts in safestack.h to more correctly
5761 map type-safe stack functions onto their plain stack counterparts.
5762 This work has also resulted in a variety of "const"ifications of
5763 lots of the code, especially "_cmp" operations which should normally
5764 be prototyped with "const" parameters anyway.
5767 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
5768 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
5769 (The PRNG state consists of two parts, the large pool 'state' and 'md',
5770 where all of 'md' is used each time the PRNG is used, but 'state'
5771 is used only indexed by a cyclic counter. As entropy may not be
5772 well distributed from the beginning, 'md' is important as a
5773 chaining variable. However, the output function chains only half
5774 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
5775 all of 'md', and seeding with STATE_SIZE dummy bytes will result
5776 in all of 'state' being rewritten, with the new values depending
5777 on virtually all of 'md'. This overcomes the 80 bit limitation.)
5780 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
5781 the handshake is continued after ssl_verify_cert_chain();
5782 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
5783 can lead to 'unexplainable' connection aborts later.
5784 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
5786 *) Major EVP API cipher revision.
5787 Add hooks for extra EVP features. This allows various cipher
5788 parameters to be set in the EVP interface. Support added for variable
5789 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
5790 setting of RC2 and RC5 parameters.
5792 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
5795 Remove lots of duplicated code from the EVP library. For example *every*
5796 cipher init() function handles the 'iv' in the same way according to the
5797 cipher mode. They also all do nothing if the 'key' parameter is NULL and
5798 for CFB and OFB modes they zero ctx->num.
5800 New functionality allows removal of S/MIME code RC2 hack.
5802 Most of the routines have the same form and so can be declared in terms
5805 By shifting this to the top level EVP_CipherInit() it can be removed from
5806 all individual ciphers. If the cipher wants to handle IVs or keys
5807 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
5810 Change lots of functions like EVP_EncryptUpdate() to now return a
5811 value: although software versions of the algorithms cannot fail
5812 any installed hardware versions can.
5815 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
5816 this option is set, tolerate broken clients that send the negotiated
5817 protocol version number instead of the requested protocol version
5821 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
5822 i.e. non-zero for export ciphersuites, zero otherwise.
5823 Previous versions had this flag inverted, inconsistent with
5824 rsa_tmp_cb (..._TMP_RSA_CB).
5825 [Bodo Moeller; problem reported by Amit Chopra]
5827 *) Add missing DSA library text string. Work around for some IIS
5828 key files with invalid SEQUENCE encoding.
5831 *) Add a document (doc/standards.txt) that list all kinds of standards
5832 and so on that are implemented in OpenSSL.
5835 *) Enhance c_rehash script. Old version would mishandle certificates
5836 with the same subject name hash and wouldn't handle CRLs at all.
5837 Added -fingerprint option to crl utility, to support new c_rehash
5841 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
5844 *) Fix for SSL server purpose checking. Server checking was
5845 rejecting certificates which had extended key usage present
5846 but no ssl client purpose.
5847 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
5849 *) Make PKCS#12 code work with no password. The PKCS#12 spec
5850 is a little unclear about how a blank password is handled.
5851 Since the password in encoded as a BMPString with terminating
5852 double NULL a zero length password would end up as just the
5853 double NULL. However no password at all is different and is
5854 handled differently in the PKCS#12 key generation code. NS
5855 treats a blank password as zero length. MSIE treats it as no
5856 password on export: but it will try both on import. We now do
5857 the same: PKCS12_parse() tries zero length and no password if
5858 the password is set to "" or NULL (NULL is now a valid password:
5859 it wasn't before) as does the pkcs12 application.
5862 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
5863 perror when PEM_read_bio_X509_REQ fails, the error message must
5864 be obtained from the error queue.
5867 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
5868 it in ERR_remove_state if appropriate, and change ERR_get_state
5869 accordingly to avoid race conditions (this is necessary because
5870 thread_hash is no longer constant once set).
5873 *) Bugfix for linux-elf makefile.one.
5876 *) RSA_get_default_method() will now cause a default
5877 RSA_METHOD to be chosen if one doesn't exist already.
5878 Previously this was only set during a call to RSA_new()
5879 or RSA_new_method(NULL) meaning it was possible for
5880 RSA_get_default_method() to return NULL.
5883 *) Added native name translation to the existing DSO code
5884 that will convert (if the flag to do so is set) filenames
5885 that are sufficiently small and have no path information
5886 into a canonical native form. Eg. "blah" converted to
5887 "libblah.so" or "blah.dll" etc.
5890 *) New function ERR_error_string_n(e, buf, len) which is like
5891 ERR_error_string(e, buf), but writes at most 'len' bytes
5892 including the 0 terminator. For ERR_error_string_n, 'buf'
5894 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
5896 *) CONF library reworked to become more general. A new CONF
5897 configuration file reader "class" is implemented as well as a
5898 new functions (NCONF_*, for "New CONF") to handle it. The now
5899 old CONF_* functions are still there, but are reimplemented to
5900 work in terms of the new functions. Also, a set of functions
5901 to handle the internal storage of the configuration data is
5902 provided to make it easier to write new configuration file
5903 reader "classes" (I can definitely see something reading a
5904 configuration file in XML format, for example), called _CONF_*,
5905 or "the configuration storage API"...
5907 The new configuration file reading functions are:
5909 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
5910 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
5912 NCONF_default, NCONF_WIN32
5914 NCONF_dump_fp, NCONF_dump_bio
5916 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
5917 NCONF_new creates a new CONF object. This works in the same way
5918 as other interfaces in OpenSSL, like the BIO interface.
5919 NCONF_dump_* dump the internal storage of the configuration file,
5920 which is useful for debugging. All other functions take the same
5921 arguments as the old CONF_* functions wth the exception of the
5922 first that must be a `CONF *' instead of a `LHASH *'.
5924 To make it easer to use the new classes with the old CONF_* functions,
5925 the function CONF_set_default_method is provided.
5928 *) Add '-tls1' option to 'openssl ciphers', which was already
5929 mentioned in the documentation but had not been implemented.
5930 (This option is not yet really useful because even the additional
5931 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
5934 *) Initial DSO code added into libcrypto for letting OpenSSL (and
5935 OpenSSL-based applications) load shared libraries and bind to
5936 them in a portable way.
5937 [Geoff Thorpe, with contributions from Richard Levitte]
5939 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
5941 *) Make sure _lrotl and _lrotr are only used with MSVC.
5943 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
5944 (the default implementation of RAND_status).
5946 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
5947 to '-clrext' (= clear extensions), as intended and documented.
5948 [Bodo Moeller; inconsistency pointed out by Michael Attili
5951 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
5952 was larger than the MD block size.
5953 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
5955 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
5956 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
5957 using the passed key: if the passed key was a private key the result
5958 of X509_print(), for example, would be to print out all the private key
5962 *) des_quad_cksum() byte order bug fix.
5963 [Ulf Möller, using the problem description in krb4-0.9.7, where
5964 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
5966 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
5968 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
5970 *) For easily testing in shell scripts whether some command
5971 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
5972 returns with exit code 0 iff no command of the given name is available.
5973 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
5974 the output goes to stdout and nothing is printed to stderr.
5975 Additional arguments are always ignored.
5977 Since for each cipher there is a command of the same name,
5978 the 'no-cipher' compilation switches can be tested this way.
5980 ('openssl no-XXX' is not able to detect pseudo-commands such
5981 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
5984 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
5987 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
5988 is set; it will be thrown away anyway because each handshake creates
5990 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
5991 to parameters -- in previous versions (since OpenSSL 0.9.3) the
5992 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
5993 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
5996 *) New s_client option -ign_eof: EOF at stdin is ignored, and
5997 'Q' and 'R' lose their special meanings (quit/renegotiate).
5998 This is part of what -quiet does; unlike -quiet, -ign_eof
5999 does not suppress any output.
6002 *) Add compatibility options to the purpose and trust code. The
6003 purpose X509_PURPOSE_ANY is "any purpose" which automatically
6004 accepts a certificate or CA, this was the previous behaviour,
6005 with all the associated security issues.
6007 X509_TRUST_COMPAT is the old trust behaviour: only and
6008 automatically trust self signed roots in certificate store. A
6009 new trust setting X509_TRUST_DEFAULT is used to specify that
6010 a purpose has no associated trust setting and it should instead
6011 use the value in the default purpose.
6014 *) Fix the PKCS#8 DSA private key code so it decodes keys again
6015 and fix a memory leak.
6018 *) In util/mkerr.pl (which implements 'make errors'), preserve
6019 reason strings from the previous version of the .c file, as
6020 the default to have only downcase letters (and digits) in
6021 automatically generated reasons codes is not always appropriate.
6024 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
6025 using strerror. Previously, ERR_reason_error_string() returned
6026 library names as reason strings for SYSerr; but SYSerr is a special
6027 case where small numbers are errno values, not library numbers.
6030 *) Add '-dsaparam' option to 'openssl dhparam' application. This
6031 converts DSA parameters into DH parameters. (When creating parameters,
6032 DSA_generate_parameters is used.)
6035 *) Include 'length' (recommended exponent length) in C code generated
6036 by 'openssl dhparam -C'.
6039 *) The second argument to set_label in perlasm was already being used
6040 so couldn't be used as a "file scope" flag. Moved to third argument
6044 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
6045 instead of RAND_bytes for encryption IVs and salts.
6048 *) Include RAND_status() into RAND_METHOD instead of implementing
6049 it only for md_rand.c Otherwise replacing the PRNG by calling
6050 RAND_set_rand_method would be impossible.
6053 *) Don't let DSA_generate_key() enter an infinite loop if the random
6054 number generation fails.
6057 *) New 'rand' application for creating pseudo-random output.
6060 *) Added configuration support for Linux/IA64
6061 [Rolf Haberrecker <rolf@suse.de>]
6063 *) Assembler module support for Mingw32.
6066 *) Shared library support for HPUX (in shlib/).
6067 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
6069 *) Shared library support for Solaris gcc.
6070 [Lutz Behnke <behnke@trustcenter.de>]
6072 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
6074 *) PKCS7_encrypt() was adding text MIME headers twice because they
6075 were added manually and by SMIME_crlf_copy().
6078 *) In bntest.c don't call BN_rand with zero bits argument.
6079 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
6081 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
6082 case was implemented. This caused BN_div_recp() to fail occasionally.
6085 *) Add an optional second argument to the set_label() in the perl
6086 assembly language builder. If this argument exists and is set
6087 to 1 it signals that the assembler should use a symbol whose
6088 scope is the entire file, not just the current function. This
6089 is needed with MASM which uses the format label:: for this scope.
6090 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
6092 *) Change the ASN1 types so they are typedefs by default. Before
6093 almost all types were #define'd to ASN1_STRING which was causing
6094 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
6098 *) Change names of new functions to the new get1/get0 naming
6099 convention: After 'get1', the caller owns a reference count
6100 and has to call ..._free; 'get0' returns a pointer to some
6101 data structure without incrementing reference counters.
6102 (Some of the existing 'get' functions increment a reference
6103 counter, some don't.)
6104 Similarly, 'set1' and 'add1' functions increase reference
6105 counters or duplicate objects.
6108 *) Allow for the possibility of temp RSA key generation failure:
6109 the code used to assume it always worked and crashed on failure.
6112 *) Fix potential buffer overrun problem in BIO_printf().
6113 [Ulf Möller, using public domain code by Patrick Powell; problem
6114 pointed out by David Sacerdote <das33@cornell.edu>]
6116 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
6117 RAND_egd() and RAND_status(). In the command line application,
6118 the EGD socket can be specified like a seed file using RANDFILE
6122 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
6123 Some CAs (e.g. Verisign) distribute certificates in this form.
6126 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
6127 list to exclude them. This means that no special compilation option
6128 is needed to use anonymous DH: it just needs to be included in the
6132 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
6133 EVP_MD_type. The old functionality is available in a new macro called
6134 EVP_MD_md(). Change code that uses it and update docs.
6137 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
6138 where the 'void *' argument is replaced by a function pointer argument.
6139 Previously 'void *' was abused to point to functions, which works on
6140 many platforms, but is not correct. As these functions are usually
6141 called by macros defined in OpenSSL header files, most source code
6142 should work without changes.
6145 *) <openssl/opensslconf.h> (which is created by Configure) now contains
6146 sections with information on -D... compiler switches used for
6147 compiling the library so that applications can see them. To enable
6148 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
6149 must be defined. E.g.,
6150 #define OPENSSL_ALGORITHM_DEFINES
6151 #include <openssl/opensslconf.h>
6152 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
6153 [Richard Levitte, Ulf and Bodo Möller]
6155 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
6159 *) Change the 'other' type in certificate aux info to a STACK_OF
6160 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
6161 the required ASN1 format: arbitrary types determined by an OID.
6164 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
6165 argument to 'req'. This is not because the function is newer or
6166 better than others it just uses the work 'NEW' in the certificate
6167 request header lines. Some software needs this.
6170 *) Reorganise password command line arguments: now passwords can be
6171 obtained from various sources. Delete the PEM_cb function and make
6172 it the default behaviour: i.e. if the callback is NULL and the
6173 usrdata argument is not NULL interpret it as a null terminated pass
6174 phrase. If usrdata and the callback are NULL then the pass phrase
6175 is prompted for as usual.
6178 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
6179 the support is automatically enabled. The resulting binaries will
6180 autodetect the card and use it if present.
6181 [Ben Laurie and Compaq Inc.]
6183 *) Work around for Netscape hang bug. This sends certificate request
6184 and server done in one record. Since this is perfectly legal in the
6185 SSL/TLS protocol it isn't a "bug" option and is on by default. See
6186 the bugs/SSLv3 entry for more info.
6189 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
6192 *) Add -rand argument to smime and pkcs12 applications and read/write
6196 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
6199 *) Add command line password options to the remaining applications.
6202 *) Bug fix for BN_div_recp() for numerators with an even number of
6206 *) More tests in bntest.c, and changed test_bn output.
6209 *) ./config recognizes MacOS X now.
6212 *) Bug fix for BN_div() when the first words of num and divsor are
6213 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
6216 *) Add support for various broken PKCS#8 formats, and command line
6217 options to produce them.
6220 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
6221 get temporary BIGNUMs from a BN_CTX.
6224 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
6228 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
6229 include a #define from the old name to the new. The original intent
6230 was that statically linked binaries could for example just call
6231 SSLeay_add_all_ciphers() to just add ciphers to the table and not
6232 link with digests. This never worked becayse SSLeay_add_all_digests()
6233 and SSLeay_add_all_ciphers() were in the same source file so calling
6234 one would link with the other. They are now in separate source files.
6237 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
6240 *) Use a less unusual form of the Miller-Rabin primality test (it used
6241 a binary algorithm for exponentiation integrated into the Miller-Rabin
6242 loop, our standard modexp algorithms are faster).
6245 *) Support for the EBCDIC character set completed.
6246 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
6248 *) Source code cleanups: use const where appropriate, eliminate casts,
6249 use void * instead of char * in lhash.
6252 *) Bugfix: ssl3_send_server_key_exchange was not restartable
6253 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
6254 this the server could overwrite ephemeral keys that the client
6258 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
6259 using 50 iterations of the Rabin-Miller test.
6261 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
6262 iterations of the Rabin-Miller test as required by the appendix
6263 to FIPS PUB 186[-1]) instead of DSA_is_prime.
6264 As BN_is_prime_fasttest includes trial division, DSA parameter
6265 generation becomes much faster.
6267 This implies a change for the callback functions in DSA_is_prime
6268 and DSA_generate_parameters: The callback function is called once
6269 for each positive witness in the Rabin-Miller test, not just
6270 occasionally in the inner loop; and the parameters to the
6271 callback function now provide an iteration count for the outer
6272 loop rather than for the current invocation of the inner loop.
6273 DSA_generate_parameters additionally can call the callback
6274 function with an 'iteration count' of -1, meaning that a
6275 candidate has passed the trial division test (when q is generated
6276 from an application-provided seed, trial division is skipped).
6279 *) New function BN_is_prime_fasttest that optionally does trial
6280 division before starting the Rabin-Miller test and has
6281 an additional BN_CTX * argument (whereas BN_is_prime always
6282 has to allocate at least one BN_CTX).
6283 'callback(1, -1, cb_arg)' is called when a number has passed the
6284 trial division stage.
6287 *) Fix for bug in CRL encoding. The validity dates weren't being handled
6291 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
6294 *) New function BN_pseudo_rand().
6297 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
6298 bignum version of BN_from_montgomery() with the working code from
6299 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
6303 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
6304 made it impossible to use the same SSL_SESSION data structure in
6305 SSL2 clients in multiple threads.
6308 *) The return value of RAND_load_file() no longer counts bytes obtained
6309 by stat(). RAND_load_file(..., -1) is new and uses the complete file
6310 to seed the PRNG (previously an explicit byte count was required).
6311 [Ulf Möller, Bodo Möller]
6313 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
6314 used (char *) instead of (void *) and had casts all over the place.
6317 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
6320 *) Retain source code compatibility for BN_prime_checks macro:
6321 BN_is_prime(..., BN_prime_checks, ...) now uses
6322 BN_prime_checks_for_size to determine the appropriate number of
6323 Rabin-Miller iterations.
6326 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
6327 DH_CHECK_P_NOT_SAFE_PRIME.
6328 (Check if this is true? OpenPGP calls them "strong".)
6331 *) Merge the functionality of "dh" and "gendh" programs into a new program
6332 "dhparam". The old programs are retained for now but will handle DH keys
6333 (instead of parameters) in future.
6336 *) Make the ciphers, s_server and s_client programs check the return values
6337 when a new cipher list is set.
6340 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
6341 ciphers. Before when the 56bit ciphers were enabled the sorting was
6344 The syntax for the cipher sorting has been extended to support sorting by
6345 cipher-strength (using the strength_bits hard coded in the tables).
6346 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
6348 Fix a bug in the cipher-command parser: when supplying a cipher command
6349 string with an "undefined" symbol (neither command nor alphanumeric
6350 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
6351 an error is flagged.
6353 Due to the strength-sorting extension, the code of the
6354 ssl_create_cipher_list() function was completely rearranged. I hope that
6355 the readability was also increased :-)
6356 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6358 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
6359 for the first serial number and places 2 in the serial number file. This
6360 avoids problems when the root CA is created with serial number zero and
6361 the first user certificate has the same issuer name and serial number
6365 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
6366 the new code. Add documentation for this stuff.
6369 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
6370 X509_*() to X509at_*() on the grounds that they don't handle X509
6371 structures and behave in an analagous way to the X509v3 functions:
6372 they shouldn't be called directly but wrapper functions should be used
6375 So we also now have some wrapper functions that call the X509at functions
6376 when passed certificate requests. (TO DO: similar things can be done with
6377 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
6378 things. Some of these need some d2i or i2d and print functionality
6379 because they handle more complex structures.)
6382 *) Add missing #ifndefs that caused missing symbols when building libssl
6383 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
6384 NO_RSA in ssl/s2*.c.
6385 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
6387 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
6388 has a return value which indicates the quality of the random data
6389 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
6390 error queue. New function RAND_pseudo_bytes() generates output that is
6391 guaranteed to be unique but not unpredictable. RAND_add is like
6392 RAND_seed, but takes an extra argument for an entropy estimate
6393 (RAND_seed always assumes full entropy).
6396 *) Do more iterations of Rabin-Miller probable prime test (specifically,
6397 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
6398 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
6399 in crypto/bn/bn_prime.c for the complete table). This guarantees a
6400 false-positive rate of at most 2^-80 for random input.
6403 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
6406 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
6407 in the 0.9.5 release), this returns the chain
6408 from an X509_CTX structure with a dup of the stack and all
6409 the X509 reference counts upped: so the stack will exist
6410 after X509_CTX_cleanup() has been called. Modify pkcs12.c
6413 Also make SSL_SESSION_print() print out the verify return
6417 *) Add manpage for the pkcs12 command. Also change the default
6418 behaviour so MAC iteration counts are used unless the new
6419 -nomaciter option is used. This improves file security and
6420 only older versions of MSIE (4.0 for example) need it.
6423 *) Honor the no-xxx Configure options when creating .DEF files.
6426 *) Add PKCS#10 attributes to field table: challengePassword,
6427 unstructuredName and unstructuredAddress. These are taken from
6428 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
6429 international characters are used.
6431 More changes to X509_ATTRIBUTE code: allow the setting of types
6432 based on strings. Remove the 'loc' parameter when adding
6433 attributes because these will be a SET OF encoding which is sorted
6437 *) Initial changes to the 'req' utility to allow request generation
6438 automation. This will allow an application to just generate a template
6439 file containing all the field values and have req construct the
6442 Initial support for X509_ATTRIBUTE handling. Stacks of these are
6443 used all over the place including certificate requests and PKCS#7
6444 structures. They are currently handled manually where necessary with
6445 some primitive wrappers for PKCS#7. The new functions behave in a
6446 manner analogous to the X509 extension functions: they allow
6447 attributes to be looked up by NID and added.
6449 Later something similar to the X509V3 code would be desirable to
6450 automatically handle the encoding, decoding and printing of the
6451 more complex types. The string types like challengePassword can
6452 be handled by the string table functions.
6454 Also modified the multi byte string table handling. Now there is
6455 a 'global mask' which masks out certain types. The table itself
6456 can use the flag STABLE_NO_MASK to ignore the mask setting: this
6457 is useful when for example there is only one permissible type
6458 (as in countryName) and using the mask might result in no valid
6462 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
6463 SSL_get_peer_finished to allow applications to obtain the latest
6464 Finished messages sent to the peer or expected from the peer,
6465 respectively. (SSL_get_peer_finished is usually the Finished message
6466 actually received from the peer, otherwise the protocol will be aborted.)
6468 As the Finished message are message digests of the complete handshake
6469 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
6470 be used for external authentication procedures when the authentication
6471 provided by SSL/TLS is not desired or is not enough.
6474 *) Enhanced support for Alpha Linux is added. Now ./config checks if
6475 the host supports BWX extension and if Compaq C is present on the
6476 $PATH. Just exploiting of the BWX extension results in 20-30%
6477 performance kick for some algorithms, e.g. DES and RC4 to mention
6478 a couple. Compaq C in turn generates ~20% faster code for MD5 and
6482 *) Add support for MS "fast SGC". This is arguably a violation of the
6483 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
6484 weak crypto and after checking the certificate is SGC a second one
6485 with strong crypto. MS SGC stops the first handshake after receiving
6486 the server certificate message and sends a second client hello. Since
6487 a server will typically do all the time consuming operations before
6488 expecting any further messages from the client (server key exchange
6489 is the most expensive) there is little difference between the two.
6491 To get OpenSSL to support MS SGC we have to permit a second client
6492 hello message after we have sent server done. In addition we have to
6493 reset the MAC if we do get this second client hello.
6496 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
6497 if a DER encoded private key is RSA or DSA traditional format. Changed
6498 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
6499 format DER encoded private key. Newer code should use PKCS#8 format which
6500 has the key type encoded in the ASN1 structure. Added DER private key
6501 support to pkcs8 application.
6504 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
6505 ciphersuites has been selected (as required by the SSL 3/TLS 1
6506 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
6507 is set, we interpret this as a request to violate the specification
6508 (the worst that can happen is a handshake failure, and 'correct'
6509 behaviour would result in a handshake failure anyway).
6512 *) In SSL_CTX_add_session, take into account that there might be multiple
6513 SSL_SESSION structures with the same session ID (e.g. when two threads
6514 concurrently obtain them from an external cache).
6515 The internal cache can handle only one SSL_SESSION with a given ID,
6516 so if there's a conflict, we now throw out the old one to achieve
6520 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
6521 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
6522 some routines that use cipher OIDs: some ciphers do not have OIDs
6523 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
6527 *) Simplify the trust setting structure and code. Now we just have
6528 two sequences of OIDs for trusted and rejected settings. These will
6529 typically have values the same as the extended key usage extension
6530 and any application specific purposes.
6532 The trust checking code now has a default behaviour: it will just
6533 check for an object with the same NID as the passed id. Functions can
6534 be provided to override either the default behaviour or the behaviour
6535 for a given id. SSL client, server and email already have functions
6536 in place for compatibility: they check the NID and also return "trusted"
6537 if the certificate is self signed.
6540 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
6541 traditional format into an EVP_PKEY structure.
6544 *) Add a password callback function PEM_cb() which either prompts for
6545 a password if usr_data is NULL or otherwise assumes it is a null
6546 terminated password. Allow passwords to be passed on command line
6547 environment or config files in a few more utilities.
6550 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
6551 keys. Add some short names for PKCS#8 PBE algorithms and allow them
6552 to be specified on the command line for the pkcs8 and pkcs12 utilities.
6553 Update documentation.
6556 *) Support for ASN1 "NULL" type. This could be handled before by using
6557 ASN1_TYPE but there wasn't any function that would try to read a NULL
6558 and produce an error if it couldn't. For compatibility we also have
6559 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
6560 don't allocate anything because they don't need to.
6563 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
6565 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
6567 *) Rebuild of the memory allocation routines used by OpenSSL code and
6568 possibly others as well. The purpose is to make an interface that
6569 provide hooks so anyone can build a separate set of allocation and
6570 deallocation routines to be used by OpenSSL, for example memory
6571 pool implementations, or something else, which was previously hard
6572 since Malloc(), Realloc() and Free() were defined as macros having
6573 the values malloc, realloc and free, respectively (except for Win32
6574 compilations). The same is provided for memory debugging code.
6575 OpenSSL already comes with functionality to find memory leaks, but
6576 this gives people a chance to debug other memory problems.
6578 With these changes, a new set of functions and macros have appeared:
6580 CRYPTO_set_mem_debug_functions() [F]
6581 CRYPTO_get_mem_debug_functions() [F]
6582 CRYPTO_dbg_set_options() [F]
6583 CRYPTO_dbg_get_options() [F]
6584 CRYPTO_malloc_debug_init() [M]
6586 The memory debug functions are NULL by default, unless the library
6587 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
6588 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
6589 gives the standard debugging functions that come with OpenSSL) or
6590 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
6591 provided by the library user) must be used. When the standard
6592 debugging functions are used, CRYPTO_dbg_set_options can be used to
6593 request additional information:
6594 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
6595 the CRYPTO_MDEBUG_xxx macro when compiling the library.
6597 Also, things like CRYPTO_set_mem_functions will always give the
6598 expected result (the new set of functions is used for allocation
6599 and deallocation) at all times, regardless of platform and compiler
6602 To finish it up, some functions that were never use in any other
6603 way than through macros have a new API and new semantic:
6606 CRYPTO_dbg_realloc()
6609 All macros of value have retained their old syntax.
6610 [Richard Levitte and Bodo Moeller]
6612 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
6613 ordering of SMIMECapabilities wasn't in "strength order" and there
6614 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
6618 *) Some ASN1 types with illegal zero length encoding (INTEGER,
6619 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
6620 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
6622 *) Merge in my S/MIME library for OpenSSL. This provides a simple
6623 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
6624 functionality to handle multipart/signed properly) and a utility
6625 called 'smime' to call all this stuff. This is based on code I
6626 originally wrote for Celo who have kindly allowed it to be
6627 included in OpenSSL.
6630 *) Add variants des_set_key_checked and des_set_key_unchecked of
6631 des_set_key (aka des_key_sched). Global variable des_check_key
6632 decides which of these is called by des_set_key; this way
6633 des_check_key behaves as it always did, but applications and
6634 the library itself, which was buggy for des_check_key == 1,
6635 have a cleaner way to pick the version they need.
6638 *) New function PKCS12_newpass() which changes the password of a
6642 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
6643 dynamic mix. In both cases the ids can be used as an index into the
6644 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
6645 functions so they accept a list of the field values and the
6646 application doesn't need to directly manipulate the X509_TRUST
6650 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
6654 *) Modify the way the V3 extension code looks up extensions. This now
6655 works in a similar way to the object code: we have some "standard"
6656 extensions in a static table which is searched with OBJ_bsearch()
6657 and the application can add dynamic ones if needed. The file
6658 crypto/x509v3/ext_dat.h now has the info: this file needs to be
6659 updated whenever a new extension is added to the core code and kept
6660 in ext_nid order. There is a simple program 'tabtest.c' which checks
6661 this. New extensions are not added too often so this file can readily
6662 be maintained manually.
6664 There are two big advantages in doing things this way. The extensions
6665 can be looked up immediately and no longer need to be "added" using
6666 X509V3_add_standard_extensions(): this function now does nothing.
6667 [Side note: I get *lots* of email saying the extension code doesn't
6668 work because people forget to call this function]
6669 Also no dynamic allocation is done unless new extensions are added:
6670 so if we don't add custom extensions there is no need to call
6671 X509V3_EXT_cleanup().
6674 *) Modify enc utility's salting as follows: make salting the default. Add a
6675 magic header, so unsalted files fail gracefully instead of just decrypting
6676 to garbage. This is because not salting is a big security hole, so people
6677 should be discouraged from doing it.
6680 *) Fixes and enhancements to the 'x509' utility. It allowed a message
6681 digest to be passed on the command line but it only used this
6682 parameter when signing a certificate. Modified so all relevant
6683 operations are affected by the digest parameter including the
6684 -fingerprint and -x509toreq options. Also -x509toreq choked if a
6685 DSA key was used because it didn't fix the digest.
6688 *) Initial certificate chain verify code. Currently tests the untrusted
6689 certificates for consistency with the verify purpose (which is set
6690 when the X509_STORE_CTX structure is set up) and checks the pathlength.
6692 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
6693 this is because it will reject chains with invalid extensions whereas
6694 every previous version of OpenSSL and SSLeay made no checks at all.
6696 Trust code: checks the root CA for the relevant trust settings. Trust
6697 settings have an initial value consistent with the verify purpose: e.g.
6698 if the verify purpose is for SSL client use it expects the CA to be
6699 trusted for SSL client use. However the default value can be changed to
6700 permit custom trust settings: one example of this would be to only trust
6701 certificates from a specific "secure" set of CAs.
6703 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
6704 which should be used for version portability: especially since the
6705 verify structure is likely to change more often now.
6707 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
6708 to set them. If not set then assume SSL clients will verify SSL servers
6711 Two new options to the verify program: -untrusted allows a set of
6712 untrusted certificates to be passed in and -purpose which sets the
6713 intended purpose of the certificate. If a purpose is set then the
6714 new chain verify code is used to check extension consistency.
6717 *) Support for the authority information access extension.
6720 *) Modify RSA and DSA PEM read routines to transparently handle
6721 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
6722 public keys in a format compatible with certificate
6723 SubjectPublicKeyInfo structures. Unfortunately there were already
6724 functions called *_PublicKey_* which used various odd formats so
6725 these are retained for compatibility: however the DSA variants were
6726 never in a public release so they have been deleted. Changed dsa/rsa
6727 utilities to handle the new format: note no releases ever handled public
6728 keys so we should be OK.
6730 The primary motivation for this change is to avoid the same fiasco
6731 that dogs private keys: there are several incompatible private key
6732 formats some of which are standard and some OpenSSL specific and
6733 require various evil hacks to allow partial transparent handling and
6734 even then it doesn't work with DER formats. Given the option anything
6735 other than PKCS#8 should be dumped: but the other formats have to
6736 stay in the name of compatibility.
6738 With public keys and the benefit of hindsight one standard format
6739 is used which works with EVP_PKEY, RSA or DSA structures: though
6740 it clearly returns an error if you try to read the wrong kind of key.
6742 Added a -pubkey option to the 'x509' utility to output the public key.
6743 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
6744 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
6745 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
6746 that do the same as the EVP_PKEY_assign_*() except they up the
6747 reference count of the added key (they don't "swallow" the
6751 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
6752 CRLs would fail if the file contained no certificates or no CRLs:
6753 added a new function to read in both types and return the number
6754 read: this means that if none are read it will be an error. The
6755 DER versions of the certificate and CRL reader would always fail
6756 because it isn't possible to mix certificates and CRLs in DER format
6757 without choking one or the other routine. Changed this to just read
6758 a certificate: this is the best we can do. Also modified the code
6759 in apps/verify.c to take notice of return codes: it was previously
6760 attempting to read in certificates from NULL pointers and ignoring
6761 any errors: this is one reason why the cert and CRL reader seemed
6762 to work. It doesn't check return codes from the default certificate
6763 routines: these may well fail if the certificates aren't installed.
6766 *) Code to support otherName option in GeneralName.
6769 *) First update to verify code. Change the verify utility
6770 so it warns if it is passed a self signed certificate:
6771 for consistency with the normal behaviour. X509_verify
6772 has been modified to it will now verify a self signed
6773 certificate if *exactly* the same certificate appears
6774 in the store: it was previously impossible to trust a
6775 single self signed certificate. This means that:
6776 openssl verify ss.pem
6777 now gives a warning about a self signed certificate but
6778 openssl verify -CAfile ss.pem ss.pem
6782 *) For servers, store verify_result in SSL_SESSION data structure
6783 (and add it to external session representation).
6784 This is needed when client certificate verifications fails,
6785 but an application-provided verification callback (set by
6786 SSL_CTX_set_cert_verify_callback) allows accepting the session
6787 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
6788 but returns 1): When the session is reused, we have to set
6789 ssl->verify_result to the appropriate error code to avoid
6791 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
6793 *) Fix a bug in the new PKCS#7 code: it didn't consider the
6794 case in PKCS7_dataInit() where the signed PKCS7 structure
6795 didn't contain any existing data because it was being created.
6796 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
6798 *) Add a salt to the key derivation routines in enc.c. This
6799 forms the first 8 bytes of the encrypted file. Also add a
6800 -S option to allow a salt to be input on the command line.
6803 *) New function X509_cmp(). Oddly enough there wasn't a function
6804 to compare two certificates. We do this by working out the SHA1
6805 hash and comparing that. X509_cmp() will be needed by the trust
6809 *) SSL_get1_session() is like SSL_get_session(), but increments
6810 the reference count in the SSL_SESSION returned.
6811 [Geoff Thorpe <geoff@eu.c2.net>]
6813 *) Fix for 'req': it was adding a null to request attributes.
6814 Also change the X509_LOOKUP and X509_INFO code to handle
6815 certificate auxiliary information.
6818 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
6822 *) Add the possibility to add extra information to the memory leak
6823 detecting output, to form tracebacks, showing from where each
6824 allocation was originated: CRYPTO_push_info("constant string") adds
6825 the string plus current file name and line number to a per-thread
6826 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
6827 is like calling CYRPTO_pop_info() until the stack is empty.
6828 Also updated memory leak detection code to be multi-thread-safe.
6831 *) Add options -text and -noout to pkcs7 utility and delete the
6832 encryption options which never did anything. Update docs.
6835 *) Add options to some of the utilities to allow the pass phrase
6836 to be included on either the command line (not recommended on
6837 OSes like Unix) or read from the environment. Update the
6838 manpages and fix a few bugs.
6841 *) Add a few manpages for some of the openssl commands.
6844 *) Fix the -revoke option in ca. It was freeing up memory twice,
6845 leaking and not finding already revoked certificates.
6848 *) Extensive changes to support certificate auxiliary information.
6849 This involves the use of X509_CERT_AUX structure and X509_AUX
6850 functions. An X509_AUX function such as PEM_read_X509_AUX()
6851 can still read in a certificate file in the usual way but it
6852 will also read in any additional "auxiliary information". By
6853 doing things this way a fair degree of compatibility can be
6854 retained: existing certificates can have this information added
6855 using the new 'x509' options.
6857 Current auxiliary information includes an "alias" and some trust
6858 settings. The trust settings will ultimately be used in enhanced
6859 certificate chain verification routines: currently a certificate
6860 can only be trusted if it is self signed and then it is trusted
6864 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
6865 The problem was that one of the replacement routines had not been working
6866 since SSLeay releases. For now the offending routine has been replaced
6867 with non-optimised assembler. Even so, this now gives around 95%
6868 performance improvement for 1024 bit RSA signs.
6871 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
6872 handling. Most clients have the effective key size in bits equal to
6873 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
6874 A few however don't do this and instead use the size of the decrypted key
6875 to determine the RC2 key length and the AlgorithmIdentifier to determine
6876 the effective key length. In this case the effective key length can still
6877 be 40 bits but the key length can be 168 bits for example. This is fixed
6878 by manually forcing an RC2 key into the EVP_PKEY structure because the
6879 EVP code can't currently handle unusual RC2 key sizes: it always assumes
6880 the key length and effective key length are equal.
6883 *) Add a bunch of functions that should simplify the creation of
6884 X509_NAME structures. Now you should be able to do:
6885 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
6886 and have it automatically work out the correct field type and fill in
6887 the structures. The more adventurous can try:
6888 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
6889 and it will (hopefully) work out the correct multibyte encoding.
6892 *) Change the 'req' utility to use the new field handling and multibyte
6893 copy routines. Before the DN field creation was handled in an ad hoc
6894 way in req, ca, and x509 which was rather broken and didn't support
6895 BMPStrings or UTF8Strings. Since some software doesn't implement
6896 BMPStrings or UTF8Strings yet, they can be enabled using the config file
6897 using the dirstring_type option. See the new comment in the default
6898 openssl.cnf for more info.
6901 *) Make crypto/rand/md_rand.c more robust:
6902 - Assure unique random numbers after fork().
6903 - Make sure that concurrent threads access the global counter and
6904 md serializably so that we never lose entropy in them
6905 or use exactly the same state in multiple threads.
6906 Access to the large state is not always serializable because
6907 the additional locking could be a performance killer, and
6908 md should be large enough anyway.
6911 *) New file apps/app_rand.c with commonly needed functionality
6912 for handling the random seed file.
6914 Use the random seed file in some applications that previously did not:
6916 dsaparam -genkey (which also ignored its '-rand' option),
6919 x509 (when signing).
6920 Except on systems with /dev/urandom, it is crucial to have a random
6921 seed file at least for key creation, DSA signing, and for DH exchanges;
6922 for RSA signatures we could do without one.
6924 gendh and gendsa (unlike genrsa) used to read only the first byte
6925 of each file listed in the '-rand' option. The function as previously
6926 found in genrsa is now in app_rand.c and is used by all programs
6927 that support '-rand'.
6930 *) In RAND_write_file, use mode 0600 for creating files;
6931 don't just chmod when it may be too late.
6934 *) Report an error from X509_STORE_load_locations
6935 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
6938 *) New function ASN1_mbstring_copy() this copies a string in either
6939 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
6940 into an ASN1_STRING type. A mask of permissible types is passed
6941 and it chooses the "minimal" type to use or an error if not type
6945 *) Add function equivalents to the various macros in asn1.h. The old
6946 macros are retained with an M_ prefix. Code inside the library can
6947 use the M_ macros. External code (including the openssl utility)
6948 should *NOT* in order to be "shared library friendly".
6951 *) Add various functions that can check a certificate's extensions
6952 to see if it usable for various purposes such as SSL client,
6953 server or S/MIME and CAs of these types. This is currently
6954 VERY EXPERIMENTAL but will ultimately be used for certificate chain
6955 verification. Also added a -purpose flag to x509 utility to
6956 print out all the purposes.
6959 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
6963 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
6964 for, obtain and decode and extension and obtain its critical flag.
6965 This allows all the necessary extension code to be handled in a
6966 single function call.
6969 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
6970 platforms. See crypto/rc4/rc4_enc.c for further details.
6973 *) New -noout option to asn1parse. This causes no output to be produced
6974 its main use is when combined with -strparse and -out to extract data
6975 from a file (which may not be in ASN.1 format).
6978 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
6979 when producing the local key id.
6980 [Richard Levitte <levitte@stacken.kth.se>]
6982 *) New option -dhparam in s_server. This allows a DH parameter file to be
6983 stated explicitly. If it is not stated then it tries the first server
6984 certificate file. The previous behaviour hard coded the filename
6988 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
6989 a public key to be input or output. For example:
6990 openssl rsa -in key.pem -pubout -out pubkey.pem
6991 Also added necessary DSA public key functions to handle this.
6994 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
6995 in the message. This was handled by allowing
6996 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
6997 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
6999 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
7000 to the end of the strings whereas this didn't. This would cause problems
7001 if strings read with d2i_ASN1_bytes() were later modified.
7002 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
7004 *) Fix for base64 decode bug. When a base64 bio reads only one line of
7005 data and it contains EOF it will end up returning an error. This is
7006 caused by input 46 bytes long. The cause is due to the way base64
7007 BIOs find the start of base64 encoded data. They do this by trying a
7008 trial decode on each line until they find one that works. When they
7009 do a flag is set and it starts again knowing it can pass all the
7010 data directly through the decoder. Unfortunately it doesn't reset
7011 the context it uses. This means that if EOF is reached an attempt
7012 is made to pass two EOFs through the context and this causes the
7013 resulting error. This can also cause other problems as well. As is
7014 usual with these problems it takes *ages* to find and the fix is
7015 trivial: move one line.
7016 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
7018 *) Ugly workaround to get s_client and s_server working under Windows. The
7019 old code wouldn't work because it needed to select() on sockets and the
7020 tty (for keypresses and to see if data could be written). Win32 only
7021 supports select() on sockets so we select() with a 1s timeout on the
7022 sockets and then see if any characters are waiting to be read, if none
7023 are present then we retry, we also assume we can always write data to
7024 the tty. This isn't nice because the code then blocks until we've
7025 received a complete line of data and it is effectively polling the
7026 keyboard at 1s intervals: however it's quite a bit better than not
7027 working at all :-) A dedicated Windows application might handle this
7028 with an event loop for example.
7031 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
7032 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
7033 will be called when RSA_sign() and RSA_verify() are used. This is useful
7034 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
7035 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
7036 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
7037 This necessitated the support of an extra signature type NID_md5_sha1
7038 for SSL signatures and modifications to the SSL library to use it instead
7039 of calling RSA_public_decrypt() and RSA_private_encrypt().
7042 *) Add new -verify -CAfile and -CApath options to the crl program, these
7043 will lookup a CRL issuers certificate and verify the signature in a
7044 similar way to the verify program. Tidy up the crl program so it
7045 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
7046 less strict. It will now permit CRL extensions even if it is not
7047 a V2 CRL: this will allow it to tolerate some broken CRLs.
7050 *) Initialize all non-automatic variables each time one of the openssl
7051 sub-programs is started (this is necessary as they may be started
7052 multiple times from the "OpenSSL>" prompt).
7053 [Lennart Bang, Bodo Moeller]
7055 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
7056 removing all other RSA functionality (this is what NO_RSA does). This
7057 is so (for example) those in the US can disable those operations covered
7058 by the RSA patent while allowing storage and parsing of RSA keys and RSA
7062 *) Non-copying interface to BIO pairs.
7063 (still largely untested)
7066 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
7067 ASCII string. This was handled independently in various places before.
7070 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
7071 UTF8 strings a character at a time.
7074 *) Use client_version from client hello to select the protocol
7075 (s23_srvr.c) and for RSA client key exchange verification
7076 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
7079 *) Add various utility functions to handle SPKACs, these were previously
7080 handled by poking round in the structure internals. Added new function
7081 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
7082 print, verify and generate SPKACs. Based on an original idea from
7083 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
7086 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
7089 *) Allow the config file extension section to be overwritten on the
7090 command line. Based on an original idea from Massimiliano Pala
7091 <madwolf@comune.modena.it>. The new option is called -extensions
7092 and can be applied to ca, req and x509. Also -reqexts to override
7093 the request extensions in req and -crlexts to override the crl extensions
7097 *) Add new feature to the SPKAC handling in ca. Now you can include
7098 the same field multiple times by preceding it by "XXXX." for example:
7101 this is the same syntax as used in the req config file.
7104 *) Allow certificate extensions to be added to certificate requests. These
7105 are specified in a 'req_extensions' option of the req section of the
7106 config file. They can be printed out with the -text option to req but
7107 are otherwise ignored at present.
7110 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
7111 data read consists of only the final block it would not decrypted because
7112 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
7113 A misplaced 'break' also meant the decrypted final block might not be
7114 copied until the next read.
7117 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
7118 a few extra parameters to the DH structure: these will be useful if
7119 for example we want the value of 'q' or implement X9.42 DH.
7122 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
7123 provides hooks that allow the default DSA functions or functions on a
7124 "per key" basis to be replaced. This allows hardware acceleration and
7125 hardware key storage to be handled without major modification to the
7126 library. Also added low level modexp hooks and CRYPTO_EX structure and
7127 associated functions.
7130 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
7131 as "read only": it can't be written to and the buffer it points to will
7132 not be freed. Reading from a read only BIO is much more efficient than
7133 a normal memory BIO. This was added because there are several times when
7134 an area of memory needs to be read from a BIO. The previous method was
7135 to create a memory BIO and write the data to it, this results in two
7136 copies of the data and an O(n^2) reading algorithm. There is a new
7137 function BIO_new_mem_buf() which creates a read only memory BIO from
7138 an area of memory. Also modified the PKCS#7 routines to use read only
7142 *) Bugfix: ssl23_get_client_hello did not work properly when called in
7143 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
7144 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
7145 but a retry condition occured while trying to read the rest.
7148 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
7149 NID_pkcs7_encrypted by default: this was wrong since this should almost
7150 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
7151 the encrypted data type: this is a more sensible place to put it and it
7152 allows the PKCS#12 code to be tidied up that duplicated this
7156 *) Changed obj_dat.pl script so it takes its input and output files on
7157 the command line. This should avoid shell escape redirection problems
7161 *) Initial support for certificate extension requests, these are included
7162 in things like Xenroll certificate requests. Included functions to allow
7163 extensions to be obtained and added.
7166 *) -crlf option to s_client and s_server for sending newlines as
7167 CRLF (as required by many protocols).
7170 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
7172 *) Install libRSAglue.a when OpenSSL is built with RSAref.
7173 [Ralf S. Engelschall]
7175 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
7176 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
7178 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
7182 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
7183 DH parameters/keys (q is lost during that conversion, but the resulting
7184 DH parameters contain its length).
7186 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
7187 much faster than DH_generate_parameters (which creates parameters
7188 where p = 2*q + 1), and also the smaller q makes DH computations
7189 much more efficient (160-bit exponentiation instead of 1024-bit
7190 exponentiation); so this provides a convenient way to support DHE
7191 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
7192 utter importance to use
7193 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7195 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7196 when such DH parameters are used, because otherwise small subgroup
7197 attacks may become possible!
7200 *) Avoid memory leak in i2d_DHparams.
7203 *) Allow the -k option to be used more than once in the enc program:
7204 this allows the same encrypted message to be read by multiple recipients.
7207 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
7208 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
7209 it will always use the numerical form of the OID, even if it has a short
7213 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
7214 method only got called if p,q,dmp1,dmq1,iqmp components were present,
7215 otherwise bn_mod_exp was called. In the case of hardware keys for example
7216 no private key components need be present and it might store extra data
7217 in the RSA structure, which cannot be accessed from bn_mod_exp.
7218 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
7219 private key operations.
7222 *) Added support for SPARC Linux.
7225 *) pem_password_cb function type incompatibly changed from
7226 typedef int pem_password_cb(char *buf, int size, int rwflag);
7228 ....(char *buf, int size, int rwflag, void *userdata);
7229 so that applications can pass data to their callbacks:
7230 The PEM[_ASN1]_{read,write}... functions and macros now take an
7231 additional void * argument, which is just handed through whenever
7232 the password callback is called.
7233 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
7235 New function SSL_CTX_set_default_passwd_cb_userdata.
7237 Compatibility note: As many C implementations push function arguments
7238 onto the stack in reverse order, the new library version is likely to
7239 interoperate with programs that have been compiled with the old
7240 pem_password_cb definition (PEM_whatever takes some data that
7241 happens to be on the stack as its last argument, and the callback
7242 just ignores this garbage); but there is no guarantee whatsoever that
7245 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
7246 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
7247 problems not only on Windows, but also on some Unix platforms.
7248 To avoid problematic command lines, these definitions are now in an
7249 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
7250 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
7253 *) MIPS III/IV assembler module is reimplemented.
7256 *) More DES library cleanups: remove references to srand/rand and
7257 delete an unused file.
7260 *) Add support for the the free Netwide assembler (NASM) under Win32,
7261 since not many people have MASM (ml) and it can be hard to obtain.
7262 This is currently experimental but it seems to work OK and pass all
7263 the tests. Check out INSTALL.W32 for info.
7266 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
7267 without temporary keys kept an extra copy of the server key,
7268 and connections with temporary keys did not free everything in case
7272 *) New function RSA_check_key and new openssl rsa option -check
7273 for verifying the consistency of RSA keys.
7274 [Ulf Moeller, Bodo Moeller]
7276 *) Various changes to make Win32 compile work:
7277 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
7278 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
7279 comparison" warnings.
7280 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
7283 *) Add a debugging option to PKCS#5 v2 key generation function: when
7284 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
7285 derived keys are printed to stderr.
7288 *) Copy the flags in ASN1_STRING_dup().
7289 [Roman E. Pavlov <pre@mo.msk.ru>]
7291 *) The x509 application mishandled signing requests containing DSA
7292 keys when the signing key was also DSA and the parameters didn't match.
7294 It was supposed to omit the parameters when they matched the signing key:
7295 the verifying software was then supposed to automatically use the CA's
7296 parameters if they were absent from the end user certificate.
7298 Omitting parameters is no longer recommended. The test was also
7299 the wrong way round! This was probably due to unusual behaviour in
7300 EVP_cmp_parameters() which returns 1 if the parameters match.
7301 This meant that parameters were omitted when they *didn't* match and
7302 the certificate was useless. Certificates signed with 'ca' didn't have
7304 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
7306 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
7307 The interface is as follows:
7308 Applications can use
7309 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
7310 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
7311 "off" is now the default.
7312 The library internally uses
7313 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
7314 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
7315 to disable memory-checking temporarily.
7317 Some inconsistent states that previously were possible (and were
7318 even the default) are now avoided.
7320 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
7321 with each memory chunk allocated; this is occasionally more helpful
7322 than just having a counter.
7324 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
7326 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
7330 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
7331 which largely parallels "options", but is for changing API behaviour,
7332 whereas "options" are about protocol behaviour.
7333 Initial "mode" flags are:
7335 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
7336 a single record has been written.
7337 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
7338 retries use the same buffer location.
7339 (But all of the contents must be
7343 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
7346 *) Fix problems with no-hmac etc.
7347 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
7349 *) New functions RSA_get_default_method(), RSA_set_method() and
7350 RSA_get_method(). These allows replacement of RSA_METHODs without having
7351 to mess around with the internals of an RSA structure.
7354 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
7355 Also really enable memory leak checks in openssl.c and in some
7357 [Chad C. Mulligan, Bodo Moeller]
7359 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
7360 up the length of negative integers. This has now been simplified to just
7361 store the length when it is first determined and use it later, rather
7362 than trying to keep track of where data is copied and updating it to
7364 [Steve Henson, reported by Brien Wheeler
7365 <bwheeler@authentica-security.com>]
7367 *) Add a new function PKCS7_signatureVerify. This allows the verification
7368 of a PKCS#7 signature but with the signing certificate passed to the
7369 function itself. This contrasts with PKCS7_dataVerify which assumes the
7370 certificate is present in the PKCS#7 structure. This isn't always the
7371 case: certificates can be omitted from a PKCS#7 structure and be
7372 distributed by "out of band" means (such as a certificate database).
7375 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
7376 function prototypes in pem.h, also change util/mkdef.pl to add the
7377 necessary function names.
7380 *) mk1mf.pl (used by Windows builds) did not properly read the
7381 options set by Configure in the top level Makefile, and Configure
7382 was not even able to write more than one option correctly.
7383 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
7386 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
7387 file to be loaded from a BIO or FILE pointer. The BIO version will
7388 for example allow memory BIOs to contain config info.
7391 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
7392 Whoever hopes to achieve shared-library compatibility across versions
7393 must use this, not the compile-time macro.
7394 (Exercise 0.9.4: Which is the minimum library version required by
7396 Note: All this applies only to multi-threaded programs, others don't
7400 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
7401 through a BIO pair triggered the default case, i.e.
7402 SSLerr(...,SSL_R_UNKNOWN_STATE).
7405 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
7406 can use the SSL library even if none of the specific BIOs is
7410 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
7411 for the encoded length.
7412 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
7414 *) Add initial documentation of the X509V3 functions.
7417 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
7418 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
7419 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
7420 secure PKCS#8 private key format with a high iteration count.
7423 *) Fix determination of Perl interpreter: A perl or perl5
7424 _directory_ in $PATH was also accepted as the interpreter.
7425 [Ralf S. Engelschall]
7427 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
7428 wrong with it but it was very old and did things like calling
7429 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
7433 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
7434 to use the new extension code.
7437 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
7438 with macros. This should make it easier to change their form, add extra
7439 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
7443 *) Add to configuration table a new entry that can specify an alternative
7444 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
7445 according to Mark Crispin <MRC@Panda.COM>.
7449 *) DES CBC did not update the IV. Weird.
7452 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
7453 Changing the behaviour of the former might break existing programs --
7454 where IV updating is needed, des_ncbc_encrypt can be used.
7457 *) When bntest is run from "make test" it drives bc to check its
7458 calculations, as well as internally checking them. If an internal check
7459 fails, it needs to cause bc to give a non-zero result or make test carries
7460 on without noticing the failure. Fixed.
7463 *) DES library cleanups.
7466 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
7467 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
7468 ciphers. NOTE: although the key derivation function has been verified
7469 against some published test vectors it has not been extensively tested
7470 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
7474 *) Instead of "mkdir -p", which is not fully portable, use new
7475 Perl script "util/mkdir-p.pl".
7478 *) Rewrite the way password based encryption (PBE) is handled. It used to
7479 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
7480 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
7481 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
7482 the 'parameter' field of the AlgorithmIdentifier is passed to the
7483 underlying key generation function so it must do its own ASN1 parsing.
7484 This has also changed the EVP_PBE_CipherInit() function which now has a
7485 'parameter' argument instead of literal salt and iteration count values
7486 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
7489 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
7490 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
7491 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
7492 KEY" because this clashed with PKCS#8 unencrypted string. Since this
7493 value was just used as a "magic string" and not used directly its
7494 value doesn't matter.
7497 *) Introduce some semblance of const correctness to BN. Shame C doesn't
7501 *) "linux-sparc64" configuration (ultrapenguin).
7502 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
7503 "linux-sparc" configuration.
7504 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
7506 *) config now generates no-xxx options for missing ciphers.
7509 *) Support the EBCDIC character set (work in progress).
7510 File ebcdic.c not yet included because it has a different license.
7511 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7513 *) Support BS2000/OSD-POSIX.
7514 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7516 *) Make callbacks for key generation use void * instead of char *.
7519 *) Make S/MIME samples compile (not yet tested).
7522 *) Additional typesafe stacks.
7525 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
7529 Changes between 0.9.3 and 0.9.3a [29 May 1999]
7531 *) New configuration variant "sco5-gcc".
7533 *) Updated some demos.
7534 [Sean O Riordain, Wade Scholine]
7536 *) Add missing BIO_free at exit of pkcs12 application.
7539 *) Fix memory leak in conf.c.
7542 *) Updates for Win32 to assembler version of MD5.
7545 *) Set #! path to perl in apps/der_chop to where we found it
7546 instead of using a fixed path.
7549 *) SHA library changes for irix64-mips4-cc.
7552 *) Improvements for VMS support.
7556 Changes between 0.9.2b and 0.9.3 [24 May 1999]
7558 *) Bignum library bug fix. IRIX 6 passes "make test" now!
7559 This also avoids the problems with SC4.2 and unpatched SC5.
7560 [Andy Polyakov <appro@fy.chalmers.se>]
7562 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
7563 These are required because of the typesafe stack would otherwise break
7564 existing code. If old code used a structure member which used to be STACK
7565 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
7566 sk_num or sk_value it would produce an error because the num, data members
7567 are not present in STACK_OF. Now it just produces a warning. sk_set
7568 replaces the old method of assigning a value to sk_value
7569 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
7570 that does this will no longer work (and should use sk_set instead) but
7571 this could be regarded as a "questionable" behaviour anyway.
7574 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
7575 correctly handle encrypted S/MIME data.
7578 *) Change type of various DES function arguments from des_cblock
7579 (which means, in function argument declarations, pointer to char)
7580 to des_cblock * (meaning pointer to array with 8 char elements),
7581 which allows the compiler to do more typechecking; it was like
7582 that back in SSLeay, but with lots of ugly casts.
7584 Introduce new type const_des_cblock.
7587 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
7588 problems: find RecipientInfo structure that matches recipient certificate
7589 and initialise the ASN1 structures properly based on passed cipher.
7592 *) Belatedly make the BN tests actually check the results.
7595 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
7596 to and from BNs: it was completely broken. New compilation option
7597 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
7598 key elements as negative integers.
7601 *) Reorganize and speed up MD5.
7602 [Andy Polyakov <appro@fy.chalmers.se>]
7605 [Richard Levitte <richard@levitte.org>]
7607 *) New option -out to asn1parse to allow the parsed structure to be
7608 output to a file. This is most useful when combined with the -strparse
7609 option to examine the output of things like OCTET STRINGS.
7612 *) Make SSL library a little more fool-proof by not requiring any longer
7613 that SSL_set_{accept,connect}_state be called before
7614 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
7615 in many applications because usually everything *appeared* to work as
7616 intended anyway -- now it really works as intended).
7619 *) Move openssl.cnf out of lib/.
7622 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
7623 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
7624 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
7625 [Ralf S. Engelschall]
7627 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
7628 handle PKCS#7 enveloped data properly.
7629 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
7631 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
7632 copying pointers. The cert_st handling is changed by this in
7633 various ways (and thus what used to be known as ctx->default_cert
7634 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
7635 any longer when s->cert does not give us what we need).
7636 ssl_cert_instantiate becomes obsolete by this change.
7637 As soon as we've got the new code right (possibly it already is?),
7638 we have solved a couple of bugs of the earlier code where s->cert
7639 was used as if it could not have been shared with other SSL structures.
7641 Note that using the SSL API in certain dirty ways now will result
7642 in different behaviour than observed with earlier library versions:
7643 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
7644 does not influence s as it used to.
7646 In order to clean up things more thoroughly, inside SSL_SESSION
7647 we don't use CERT any longer, but a new structure SESS_CERT
7648 that holds per-session data (if available); currently, this is
7649 the peer's certificate chain and, for clients, the server's certificate
7650 and temporary key. CERT holds only those values that can have
7651 meaningful defaults in an SSL_CTX.
7654 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
7655 from the internal representation. Various PKCS#7 fixes: remove some
7656 evil casts and set the enc_dig_alg field properly based on the signing
7660 *) Allow PKCS#12 password to be set from the command line or the
7661 environment. Let 'ca' get its config file name from the environment
7662 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
7666 *) Allow certificate policies extension to use an IA5STRING for the
7667 organization field. This is contrary to the PKIX definition but
7668 VeriSign uses it and IE5 only recognises this form. Document 'x509'
7672 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
7673 without disallowing inline assembler and the like for non-pedantic builds.
7676 *) Support Borland C++ builder.
7677 [Janez Jere <jj@void.si>, modified by Ulf Möller]
7682 *) SHA-1 cleanups and performance enhancements.
7683 [Andy Polyakov <appro@fy.chalmers.se>]
7685 *) Sparc v8plus assembler for the bignum library.
7686 [Andy Polyakov <appro@fy.chalmers.se>]
7688 *) Accept any -xxx and +xxx compiler options in Configure.
7691 *) Update HPUX configuration.
7694 *) Add missing sk_<type>_unshift() function to safestack.h
7695 [Ralf S. Engelschall]
7697 *) New function SSL_CTX_use_certificate_chain_file that sets the
7698 "extra_cert"s in addition to the certificate. (This makes sense
7699 only for "PEM" format files, as chains as a whole are not
7703 *) Support verify_depth from the SSL API.
7704 x509_vfy.c had what can be considered an off-by-one-error:
7705 Its depth (which was not part of the external interface)
7706 was actually counting the number of certificates in a chain;
7707 now it really counts the depth.
7710 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
7711 instead of X509err, which often resulted in confusing error
7712 messages since the error codes are not globally unique
7713 (e.g. an alleged error in ssl3_accept when a certificate
7714 didn't match the private key).
7716 *) New function SSL_CTX_set_session_id_context that allows to set a default
7717 value (so that you don't need SSL_set_session_id_context for each
7718 connection using the SSL_CTX).
7721 *) OAEP decoding bug fix.
7724 *) Support INSTALL_PREFIX for package builders, as proposed by
7728 *) New Configure options "threads" and "no-threads". For systems
7729 where the proper compiler options are known (currently Solaris
7730 and Linux), "threads" is the default.
7733 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
7736 *) Install various scripts to $(OPENSSLDIR)/misc, not to
7737 $(INSTALLTOP)/bin -- they shouldn't clutter directories
7738 such as /usr/local/bin.
7741 *) "make linux-shared" to build shared libraries.
7742 [Niels Poppe <niels@netbox.org>]
7744 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
7747 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
7748 extension adding in x509 utility.
7751 *) Remove NOPROTO sections and error code comments.
7754 *) Partial rewrite of the DEF file generator to now parse the ANSI
7758 *) New Configure options --prefix=DIR and --openssldir=DIR.
7761 *) Complete rewrite of the error code script(s). It is all now handled
7762 by one script at the top level which handles error code gathering,
7763 header rewriting and C source file generation. It should be much better
7764 than the old method: it now uses a modified version of Ulf's parser to
7765 read the ANSI prototypes in all header files (thus the old K&R definitions
7766 aren't needed for error creation any more) and do a better job of
7767 translating function codes into names. The old 'ASN1 error code imbedded
7768 in a comment' is no longer necessary and it doesn't use .err files which
7769 have now been deleted. Also the error code call doesn't have to appear all
7770 on one line (which resulted in some large lines...).
7773 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
7776 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
7777 0 (which usually indicates a closed connection), but continue reading.
7780 *) Fix some race conditions.
7783 *) Add support for CRL distribution points extension. Add Certificate
7784 Policies and CRL distribution points documentation.
7787 *) Move the autogenerated header file parts to crypto/opensslconf.h.
7790 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
7791 8 of keying material. Merlin has also confirmed interop with this fix
7792 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
7793 [Merlin Hughes <merlin@baltimore.ie>]
7795 *) Fix lots of warnings.
7796 [Richard Levitte <levitte@stacken.kth.se>]
7798 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
7799 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
7800 [Richard Levitte <levitte@stacken.kth.se>]
7802 *) Fix problems with sizeof(long) == 8.
7803 [Andy Polyakov <appro@fy.chalmers.se>]
7805 *) Change functions to ANSI C.
7808 *) Fix typos in error codes.
7809 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
7811 *) Remove defunct assembler files from Configure.
7814 *) SPARC v8 assembler BIGNUM implementation.
7815 [Andy Polyakov <appro@fy.chalmers.se>]
7817 *) Support for Certificate Policies extension: both print and set.
7818 Various additions to support the r2i method this uses.
7821 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
7822 return a const string when you are expecting an allocated buffer.
7825 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
7826 types DirectoryString and DisplayText.
7829 *) Add code to allow r2i extensions to access the configuration database,
7830 add an LHASH database driver and add several ctx helper functions.
7833 *) Fix an evil bug in bn_expand2() which caused various BN functions to
7834 fail when they extended the size of a BIGNUM.
7837 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
7838 support typesafe stack.
7841 *) Fix typo in SSL_[gs]et_options().
7842 [Nils Frostberg <nils@medcom.se>]
7844 *) Delete various functions and files that belonged to the (now obsolete)
7845 old X509V3 handling code.
7848 *) New Configure option "rsaref".
7851 *) Don't auto-generate pem.h.
7854 *) Introduce type-safe ASN.1 SETs.
7857 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
7858 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
7860 *) Introduce type-safe STACKs. This will almost certainly break lots of code
7861 that links with OpenSSL (well at least cause lots of warnings), but fear
7862 not: the conversion is trivial, and it eliminates loads of evil casts. A
7863 few STACKed things have been converted already. Feel free to convert more.
7864 In the fullness of time, I'll do away with the STACK type altogether.
7867 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
7868 specified in <certfile> by updating the entry in the index.txt file.
7869 This way one no longer has to edit the index.txt file manually for
7870 revoking a certificate. The -revoke option does the gory details now.
7871 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
7873 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
7874 `-text' option at all and this way the `-noout -text' combination was
7875 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
7876 [Ralf S. Engelschall]
7878 *) Make sure a corresponding plain text error message exists for the
7879 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
7880 verify callback function determined that a certificate was revoked.
7881 [Ralf S. Engelschall]
7883 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
7884 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
7885 all available cipers including rc5, which was forgotten until now.
7886 In order to let the testing shell script know which algorithms
7887 are available, a new (up to now undocumented) command
7888 "openssl list-cipher-commands" is used.
7891 *) Bugfix: s_client occasionally would sleep in select() when
7892 it should have checked SSL_pending() first.
7895 *) New functions DSA_do_sign and DSA_do_verify to provide access to
7896 the raw DSA values prior to ASN.1 encoding.
7899 *) Tweaks to Configure
7900 [Niels Poppe <niels@netbox.org>]
7902 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
7906 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
7909 *) New config option to avoid instructions that are illegal on the 80386.
7910 The default code is faster, but requires at least a 486.
7913 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
7914 SSL2_SERVER_VERSION (not used at all) macros, which are now the
7915 same as SSL2_VERSION anyway.
7918 *) New "-showcerts" option for s_client.
7921 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
7922 application. Various cleanups and fixes.
7925 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
7926 modify error routines to work internally. Add error codes and PBE init
7927 to library startup routines.
7930 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
7931 packing functions to asn1 and evp. Changed function names and error
7932 codes along the way.
7935 *) PKCS12 integration: and so it begins... First of several patches to
7936 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
7937 objects to objects.h
7940 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
7941 and display support for Thawte strong extranet extension.
7944 *) Add LinuxPPC support.
7945 [Jeff Dubrule <igor@pobox.org>]
7947 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
7948 bn_div_words in alpha.s.
7949 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
7951 *) Make sure the RSA OAEP test is skipped under -DRSAref because
7952 OAEP isn't supported when OpenSSL is built with RSAref.
7953 [Ulf Moeller <ulf@fitug.de>]
7955 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
7956 so they no longer are missing under -DNOPROTO.
7957 [Soren S. Jorvang <soren@t.dk>]
7960 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
7962 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
7963 doesn't work when the session is reused. Coming soon!
7966 *) Fix a security hole, that allows sessions to be reused in the wrong
7967 context thus bypassing client cert protection! All software that uses
7968 client certs and session caches in multiple contexts NEEDS PATCHING to
7969 allow session reuse! A fuller solution is in the works.
7970 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
7972 *) Some more source tree cleanups (removed obsolete files
7973 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
7974 permission on "config" script to be executable) and a fix for the INSTALL
7976 [Ulf Moeller <ulf@fitug.de>]
7978 *) Remove some legacy and erroneous uses of malloc, free instead of
7980 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
7982 *) Make rsa_oaep_test return non-zero on error.
7983 [Ulf Moeller <ulf@fitug.de>]
7985 *) Add support for native Solaris shared libraries. Configure
7986 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
7987 if someone would make that last step automatic.
7988 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
7990 *) ctx_size was not built with the right compiler during "make links". Fixed.
7993 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
7994 except NULL ciphers". This means the default cipher list will no longer
7995 enable NULL ciphers. They need to be specifically enabled e.g. with
7996 the string "DEFAULT:eNULL".
7999 *) Fix to RSA private encryption routines: if p < q then it would
8000 occasionally produce an invalid result. This will only happen with
8001 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
8004 *) Be less restrictive and allow also `perl util/perlpath.pl
8005 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
8006 because this way one can also use an interpreter named `perl5' (which is
8007 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
8008 installed as `perl').
8009 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8011 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
8012 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8014 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
8015 advapi32.lib to Win32 build and change the pem test comparision
8016 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
8017 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
8018 and crypto/des/ede_cbcm_enc.c.
8021 *) DES quad checksum was broken on big-endian architectures. Fixed.
8024 *) Comment out two functions in bio.h that aren't implemented. Fix up the
8025 Win32 test batch file so it (might) work again. The Win32 test batch file
8026 is horrible: I feel ill....
8029 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
8030 in e_os.h. Audit of header files to check ANSI and non ANSI
8031 sections: 10 functions were absent from non ANSI section and not exported
8032 from Windows DLLs. Fixed up libeay.num for new functions.
8035 *) Make `openssl version' output lines consistent.
8036 [Ralf S. Engelschall]
8038 *) Fix Win32 symbol export lists for BIO functions: Added
8039 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
8040 to ms/libeay{16,32}.def.
8041 [Ralf S. Engelschall]
8043 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
8044 fine under Unix and passes some trivial tests I've now added. But the
8045 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
8046 added to make sure no one expects that this stuff really works in the
8047 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
8048 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
8050 [Ralf S. Engelschall]
8052 *) Fix the generation of two part addresses in perl.
8053 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
8055 *) Add config entry for Linux on MIPS.
8056 [John Tobey <jtobey@channel1.com>]
8058 *) Make links whenever Configure is run, unless we are on Windoze.
8061 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
8062 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
8066 *) Add a useful kludge to allow package maintainers to specify compiler and
8067 other platforms details on the command line without having to patch the
8068 Configure script everytime: One now can use ``perl Configure
8069 <id>:<details>'', i.e. platform ids are allowed to have details appended
8070 to them (seperated by colons). This is treated as there would be a static
8071 pre-configured entry in Configure's %table under key <id> with value
8072 <details> and ``perl Configure <id>'' is called. So, when you want to
8073 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
8074 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
8075 now, which overrides the FreeBSD-elf entry on-the-fly.
8076 [Ralf S. Engelschall]
8078 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
8081 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
8082 on the `perl Configure ...' command line. This way one can compile
8083 OpenSSL libraries with Position Independent Code (PIC) which is needed
8084 for linking it into DSOs.
8085 [Ralf S. Engelschall]
8087 *) Remarkably, export ciphers were totally broken and no-one had noticed!
8091 *) Cleaned up the LICENSE document: The official contact for any license
8092 questions now is the OpenSSL core team under openssl-core@openssl.org.
8093 And add a paragraph about the dual-license situation to make sure people
8094 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
8095 to the OpenSSL toolkit.
8096 [Ralf S. Engelschall]
8098 *) General source tree makefile cleanups: Made `making xxx in yyy...'
8099 display consistent in the source tree and replaced `/bin/rm' by `rm'.
8100 Additonally cleaned up the `make links' target: Remove unnecessary
8101 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
8102 to speed processing and no longer clutter the display with confusing
8103 stuff. Instead only the actually done links are displayed.
8104 [Ralf S. Engelschall]
8106 *) Permit null encryption ciphersuites, used for authentication only. It used
8107 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
8108 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
8112 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
8113 signed attributes when verifying signatures (this would break them),
8114 the detached data encoding was wrong and public keys obtained using
8115 X509_get_pubkey() weren't freed.
8118 *) Add text documentation for the BUFFER functions. Also added a work around
8119 to a Win95 console bug. This was triggered by the password read stuff: the
8120 last character typed gets carried over to the next fread(). If you were
8121 generating a new cert request using 'req' for example then the last
8122 character of the passphrase would be CR which would then enter the first
8126 *) Added the new `Includes OpenSSL Cryptography Software' button as
8127 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
8128 button and can be used by applications based on OpenSSL to show the
8129 relationship to the OpenSSL project.
8130 [Ralf S. Engelschall]
8132 *) Remove confusing variables in function signatures in files
8133 ssl/ssl_lib.c and ssl/ssl.h.
8134 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8136 *) Don't install bss_file.c under PREFIX/include/
8137 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8139 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
8140 functions that return function pointers and has support for NT specific
8141 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
8142 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
8143 unsigned to signed types: this was killing the Win32 compile.
8146 *) Add new certificate file to stack functions,
8147 SSL_add_dir_cert_subjects_to_stack() and
8148 SSL_add_file_cert_subjects_to_stack(). These largely supplant
8149 SSL_load_client_CA_file(), and can be used to add multiple certs easily
8150 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
8151 This means that Apache-SSL and similar packages don't have to mess around
8152 to add as many CAs as they want to the preferred list.
8155 *) Experiment with doxygen documentation. Currently only partially applied to
8157 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
8158 openssl.doxy as the configuration file.
8161 *) Get rid of remaining C++-style comments which strict C compilers hate.
8162 [Ralf S. Engelschall, pointed out by Carlos Amengual]
8164 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
8165 compiled in by default: it has problems with large keys.
8168 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
8169 DH private keys and/or callback functions which directly correspond to
8170 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
8171 is needed for applications which have to configure certificates on a
8172 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
8174 For the RSA certificate situation is makes no difference, but
8175 for the DSA certificate situation this fixes the "no shared cipher"
8176 problem where the OpenSSL cipher selection procedure failed because the
8177 temporary keys were not overtaken from the context and the API provided
8178 no way to reconfigure them.
8179 The new functions now let applications reconfigure the stuff and they
8180 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
8181 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
8182 non-public-API function ssl_cert_instantiate() is used as a helper
8183 function and also to reduce code redundancy inside ssl_rsa.c.
8184 [Ralf S. Engelschall]
8186 *) Move s_server -dcert and -dkey options out of the undocumented feature
8187 area because they are useful for the DSA situation and should be
8188 recognized by the users.
8189 [Ralf S. Engelschall]
8191 *) Fix the cipher decision scheme for export ciphers: the export bits are
8192 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
8193 SSL_EXP_MASK. So, the original variable has to be used instead of the
8194 already masked variable.
8195 [Richard Levitte <levitte@stacken.kth.se>]
8197 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
8198 [Richard Levitte <levitte@stacken.kth.se>]
8200 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
8201 from `int' to `unsigned int' because it's a length and initialized by
8202 EVP_DigestFinal() which expects an `unsigned int *'.
8203 [Richard Levitte <levitte@stacken.kth.se>]
8205 *) Don't hard-code path to Perl interpreter on shebang line of Configure
8206 script. Instead use the usual Shell->Perl transition trick.
8207 [Ralf S. Engelschall]
8209 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
8210 (in addition to RSA certificates) to match the behaviour of `openssl dsa
8211 -noout -modulus' as it's already the case for `openssl rsa -noout
8212 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
8213 currently the public key is printed (a decision which was already done by
8214 `openssl dsa -modulus' in the past) which serves a similar purpose.
8215 Additionally the NO_RSA no longer completely removes the whole -modulus
8216 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
8218 [Ralf S. Engelschall]
8220 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
8221 BIO. See the source (crypto/evp/bio_ok.c) for more info.
8222 [Arne Ansper <arne@ats.cyber.ee>]
8224 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
8225 to be added. Now both 'req' and 'ca' can use new objects defined in the
8229 *) Add cool BIO that does syslog (or event log on NT).
8230 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
8232 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
8233 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
8234 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
8235 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
8238 *) Add preliminary config info for new extension code.
8241 *) Make RSA_NO_PADDING really use no padding.
8242 [Ulf Moeller <ulf@fitug.de>]
8244 *) Generate errors when private/public key check is done.
8247 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
8248 for some CRL extensions and new objects added.
8251 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
8252 key usage extension and fuller support for authority key id.
8255 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
8256 padding method for RSA, which is recommended for new applications in PKCS
8257 #1 v2.0 (RFC 2437, October 1998).
8258 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
8259 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
8260 against Bleichbacher's attack on RSA.
8261 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
8264 *) Updates to the new SSL compression code
8265 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8267 *) Fix so that the version number in the master secret, when passed
8268 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
8269 (because the server will not accept higher), that the version number
8270 is 0x03,0x01, not 0x03,0x00
8271 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8273 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
8274 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
8275 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
8278 *) Support for RAW extensions where an arbitrary extension can be
8279 created by including its DER encoding. See apps/openssl.cnf for
8283 *) Make sure latest Perl versions don't interpret some generated C array
8284 code as Perl array code in the crypto/err/err_genc.pl script.
8285 [Lars Weber <3weber@informatik.uni-hamburg.de>]
8287 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
8288 not many people have the assembler. Various Win32 compilation fixes and
8289 update to the INSTALL.W32 file with (hopefully) more accurate Win32
8293 *) Modify configure script 'Configure' to automatically create crypto/date.h
8294 file under Win32 and also build pem.h from pem.org. New script
8295 util/mkfiles.pl to create the MINFO file on environments that can't do a
8296 'make files': perl util/mkfiles.pl >MINFO should work.
8299 *) Major rework of DES function declarations, in the pursuit of correctness
8300 and purity. As a result, many evil casts evaporated, and some weirdness,
8301 too. You may find this causes warnings in your code. Zapping your evil
8302 casts will probably fix them. Mostly.
8305 *) Fix for a typo in asn1.h. Bug fix to object creation script
8306 obj_dat.pl. It considered a zero in an object definition to mean
8307 "end of object": none of the objects in objects.h have any zeros
8308 so it wasn't spotted.
8309 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
8311 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
8312 Masking (CBCM). In the absence of test vectors, the best I have been able
8313 to do is check that the decrypt undoes the encrypt, so far. Send me test
8314 vectors if you have them.
8317 *) Correct calculation of key length for export ciphers (too much space was
8318 allocated for null ciphers). This has not been tested!
8321 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
8322 message is now correct (it understands "crypto" and "ssl" on its
8323 command line). There is also now an "update" option. This will update
8324 the util/ssleay.num and util/libeay.num files with any new functions.
8326 perl util/mkdef.pl crypto ssl update
8327 it will update them.
8330 *) Overhauled the Perl interface (perl/*):
8331 - ported BN stuff to OpenSSL's different BN library
8332 - made the perl/ source tree CVS-aware
8333 - renamed the package from SSLeay to OpenSSL (the files still contain
8334 their history because I've copied them in the repository)
8335 - removed obsolete files (the test scripts will be replaced
8336 by better Test::Harness variants in the future)
8337 [Ralf S. Engelschall]
8339 *) First cut for a very conservative source tree cleanup:
8340 1. merge various obsolete readme texts into doc/ssleay.txt
8341 where we collect the old documents and readme texts.
8342 2. remove the first part of files where I'm already sure that we no
8343 longer need them because of three reasons: either they are just temporary
8344 files which were left by Eric or they are preserved original files where
8345 I've verified that the diff is also available in the CVS via "cvs diff
8346 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
8347 the crypto/md/ stuff).
8348 [Ralf S. Engelschall]
8350 *) More extension code. Incomplete support for subject and issuer alt
8351 name, issuer and authority key id. Change the i2v function parameters
8352 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
8353 what that's for :-) Fix to ASN1 macro which messed up
8354 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
8357 *) Preliminary support for ENUMERATED type. This is largely copied from the
8361 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
8362 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8364 *) Make sure `make rehash' target really finds the `openssl' program.
8365 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8367 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
8368 like to hear about it if this slows down other processors.
8371 *) Add CygWin32 platform information to Configure script.
8372 [Alan Batie <batie@aahz.jf.intel.com>]
8374 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
8375 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
8377 *) New program nseq to manipulate netscape certificate sequences
8380 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
8384 *) Fixes to BN code. Previously the default was to define BN_RECURSION
8385 but the BN code had some problems that would cause failures when
8386 doing certificate verification and some other functions.
8387 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8389 *) Add ASN1 and PEM code to support netscape certificate sequences.
8392 *) Add ASN1 and PEM code to support netscape certificate sequences.
8395 *) Add several PKIX and private extended key usage OIDs.
8398 *) Modify the 'ca' program to handle the new extension code. Modify
8399 openssl.cnf for new extension format, add comments.
8402 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
8403 and add a sample to openssl.cnf so req -x509 now adds appropriate
8407 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
8408 error code, add initial support to X509_print() and x509 application.
8411 *) Takes a deep breath and start addding X509 V3 extension support code. Add
8412 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
8413 stuff is currently isolated and isn't even compiled yet.
8416 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
8417 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
8418 Removed the versions check from X509 routines when loading extensions:
8419 this allows certain broken certificates that don't set the version
8420 properly to be processed.
8423 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
8424 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
8425 can still be regenerated with "make depend".
8428 *) Spelling mistake in C version of CAST-128.
8429 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
8431 *) Changes to the error generation code. The perl script err-code.pl
8432 now reads in the old error codes and retains the old numbers, only
8433 adding new ones if necessary. It also only changes the .err files if new
8434 codes are added. The makefiles have been modified to only insert errors
8435 when needed (to avoid needlessly modifying header files). This is done
8436 by only inserting errors if the .err file is newer than the auto generated
8437 C file. To rebuild all the error codes from scratch (the old behaviour)
8438 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
8439 or delete all the .err files.
8442 *) CAST-128 was incorrectly implemented for short keys. The C version has
8443 been fixed, but is untested. The assembler versions are also fixed, but
8444 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
8445 to regenerate it if needed.
8446 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
8447 Hagino <itojun@kame.net>]
8449 *) File was opened incorrectly in randfile.c.
8450 [Ulf Möller <ulf@fitug.de>]
8452 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
8453 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
8454 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
8455 al: it's just almost always a UTCTime. Note this patch adds new error
8456 codes so do a "make errors" if there are problems.
8459 *) Correct Linux 1 recognition in config.
8460 [Ulf Möller <ulf@fitug.de>]
8462 *) Remove pointless MD5 hash when using DSA keys in ca.
8463 [Anonymous <nobody@replay.com>]
8465 *) Generate an error if given an empty string as a cert directory. Also
8466 generate an error if handed NULL (previously returned 0 to indicate an
8467 error, but didn't set one).
8468 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
8470 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
8473 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
8474 parameters. This was causing a warning which killed off the Win32 compile.
8477 *) Remove C++ style comments from crypto/bn/bn_local.h.
8478 [Neil Costigan <neil.costigan@celocom.com>]
8480 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
8481 based on a text string, looking up short and long names and finally
8482 "dot" format. The "dot" format stuff didn't work. Added new function
8483 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
8484 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
8485 OID is not part of the table.
8488 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
8489 X509_LOOKUP_by_alias().
8492 *) Sort openssl functions by name.
8495 *) Get the gendsa program working (hopefully) and add it to app list. Remove
8496 encryption from sample DSA keys (in case anyone is interested the password
8500 *) Make _all_ *_free functions accept a NULL pointer.
8501 [Frans Heymans <fheymans@isaserver.be>]
8503 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
8505 [Anonymous <nobody@replay.com>]
8507 *) s_server should send the CAfile as acceptable CAs, not its own cert.
8508 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8510 *) Don't blow it for numeric -newkey arguments to apps/req.
8511 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8513 *) Temp key "for export" tests were wrong in s3_srvr.c.
8514 [Anonymous <nobody@replay.com>]
8516 *) Add prototype for temp key callback functions
8517 SSL_CTX_set_tmp_{rsa,dh}_callback().
8520 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
8521 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
8524 *) X509_name_add_entry() freed the wrong thing after an error.
8525 [Arne Ansper <arne@ats.cyber.ee>]
8527 *) rsa_eay.c would attempt to free a NULL context.
8528 [Arne Ansper <arne@ats.cyber.ee>]
8530 *) BIO_s_socket() had a broken should_retry() on Windoze.
8531 [Arne Ansper <arne@ats.cyber.ee>]
8533 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
8534 [Arne Ansper <arne@ats.cyber.ee>]
8536 *) Make sure the already existing X509_STORE->depth variable is initialized
8537 in X509_STORE_new(), but document the fact that this variable is still
8538 unused in the certificate verification process.
8539 [Ralf S. Engelschall]
8541 *) Fix the various library and apps files to free up pkeys obtained from
8542 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
8545 *) Fix reference counting in X509_PUBKEY_get(). This makes
8546 demos/maurice/example2.c work, amongst others, probably.
8547 [Steve Henson and Ben Laurie]
8549 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
8550 `openssl' and second, the shortcut symlinks for the `openssl <command>'
8551 are no longer created. This way we have a single and consistent command
8552 line interface `openssl <command>', similar to `cvs <command>'.
8553 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
8555 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
8556 BIT STRING wrapper always have zero unused bits.
8559 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
8562 *) Make the top-level INSTALL documentation easier to understand.
8565 *) Makefiles updated to exit if an error occurs in a sub-directory
8566 make (including if user presses ^C) [Paul Sutton]
8568 *) Make Montgomery context stuff explicit in RSA data structure.
8571 *) Fix build order of pem and err to allow for generated pem.h.
8574 *) Fix renumbering bug in X509_NAME_delete_entry().
8577 *) Enhanced the err-ins.pl script so it makes the error library number
8578 global and can add a library name. This is needed for external ASN1 and
8579 other error libraries.
8582 *) Fixed sk_insert which never worked properly.
8585 *) Fix ASN1 macros so they can handle indefinite length construted
8586 EXPLICIT tags. Some non standard certificates use these: they can now
8590 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
8591 into a single doc/ssleay.txt bundle. This way the information is still
8592 preserved but no longer messes up this directory. Now it's new room for
8593 the new set of documenation files.
8594 [Ralf S. Engelschall]
8596 *) SETs were incorrectly DER encoded. This was a major pain, because they
8597 shared code with SEQUENCEs, which aren't coded the same. This means that
8598 almost everything to do with SETs or SEQUENCEs has either changed name or
8599 number of arguments.
8600 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
8602 *) Fix test data to work with the above.
8605 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
8606 was already fixed by Eric for 0.9.1 it seems.
8607 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
8609 *) Autodetect FreeBSD3.
8612 *) Fix various bugs in Configure. This affects the following platforms:
8616 unixware-2.0-pentium
8620 *) Eliminate generated files from CVS. Reorder tests to regenerate files
8621 before they are needed.
8624 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
8628 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
8630 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
8631 changed SSLeay to OpenSSL in version strings.
8632 [Ralf S. Engelschall]
8634 *) Some fixups to the top-level documents.
8637 *) Fixed the nasty bug where rsaref.h was not found under compile-time
8638 because the symlink to include/ was missing.
8639 [Ralf S. Engelschall]
8641 *) Incorporated the popular no-RSA/DSA-only patches
8642 which allow to compile a RSA-free SSLeay.
8643 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
8645 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
8646 when "ssleay" is still not found.
8647 [Ralf S. Engelschall]
8649 *) Added more platforms to Configure: Cray T3E, HPUX 11,
8650 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
8652 *) Updated the README file.
8653 [Ralf S. Engelschall]
8655 *) Added various .cvsignore files in the CVS repository subdirs
8656 to make a "cvs update" really silent.
8657 [Ralf S. Engelschall]
8659 *) Recompiled the error-definition header files and added
8660 missing symbols to the Win32 linker tables.
8661 [Ralf S. Engelschall]
8663 *) Cleaned up the top-level documents;
8664 o new files: CHANGES and LICENSE
8665 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
8666 o merged COPYRIGHT into LICENSE
8667 o removed obsolete TODO file
8668 o renamed MICROSOFT to INSTALL.W32
8669 [Ralf S. Engelschall]
8671 *) Removed dummy files from the 0.9.1b source tree:
8672 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
8673 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
8674 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
8675 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
8676 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
8677 [Ralf S. Engelschall]
8679 *) Added various platform portability fixes.
8682 *) The Genesis of the OpenSSL rpject:
8683 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
8684 Young and Tim J. Hudson created while they were working for C2Net until
8686 [The OpenSSL Project]
8689 Changes between 0.9.0b and 0.9.1b [not released]
8691 *) Updated a few CA certificates under certs/
8694 *) Changed some BIGNUM api stuff.
8697 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
8698 DGUX x86, Linux Alpha, etc.
8701 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
8702 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
8706 *) Add -strparse option to asn1pars program which parses nested
8708 [Dr Stephen Henson <shenson@bigfoot.com>]
8710 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
8713 *) DSA fix for "ca" program.
8716 *) Added "-genkey" option to "dsaparam" program.
8719 *) Added RIPE MD160 (rmd160) message digest.
8722 *) Added -a (all) option to "ssleay version" command.
8725 *) Added PLATFORM define which is the id given to Configure.
8728 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
8731 *) Extended the ASN.1 parser routines.
8734 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
8737 *) Added a BN_CTX to the BN library.
8740 *) Fixed the weak key values in DES library
8743 *) Changed API in EVP library for cipher aliases.
8746 *) Added support for RC2/64bit cipher.
8749 *) Converted the lhash library to the crypto/mem.c functions.
8752 *) Added more recognized ASN.1 object ids.
8755 *) Added more RSA padding checks for SSL/TLS.
8758 *) Added BIO proxy/filter functionality.
8761 *) Added extra_certs to SSL_CTX which can be used
8762 send extra CA certificates to the client in the CA cert chain sending
8763 process. It can be configured with SSL_CTX_add_extra_chain_cert().
8766 *) Now Fortezza is denied in the authentication phase because
8767 this is key exchange mechanism is not supported by SSLeay at all.
8770 *) Additional PKCS1 checks.
8773 *) Support the string "TLSv1" for all TLS v1 ciphers.
8776 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
8777 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
8780 *) Fixed a few memory leaks.
8783 *) Fixed various code and comment typos.
8786 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
8787 bytes sent in the client random.
8788 [Edward Bishop <ebishop@spyglass.com>]
projects / oweals / openssl.git / blob