5 Changes between 0.9.8k and 0.9.8l [xx XXX xxxx]
7 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
8 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
10 [Guenter <lists@gknw.net>]
12 *) Don't check self signed certificate signatures in X509_verify_cert():
13 it just wastes time without adding any security. As a useful side effect
14 self signed root CAs with non-FIPS digests are now usable in FIPS mode.
17 *) In dtls1_process_out_of_seq_message() the check if the current message
18 is already buffered was missing. For every new message was memory
19 allocated, allowing an attacker to perform an denial of service attack
20 with sending out of seq handshake messages until there is no memory
21 left. Additionally every future messege was buffered, even if the
22 sequence number made no sense and would be part of another handshake.
23 So only messages with sequence numbers less than 10 in advance will be
24 buffered. (CVE-2009-1378)
25 [Robin Seggelmann, discovered by Daniel Mentz]
27 *) Records are buffered if they arrive with a future epoch to be
28 processed after finishing the corresponding handshake. There is
29 currently no limitation to this buffer allowing an attacker to perform
30 a DOS attack with sending records with future epochs until there is no
31 memory left. This patch adds the pqueue_size() function to detemine
32 the size of a buffer and limits the record buffer to 100 entries.
34 [Robin Seggelmann, discovered by Daniel Mentz]
36 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
37 parent structure is freed. (CVE-2009-1379)
40 *) Handle non-blocking I/O properly in SSL_shutdown() call.
41 [Darryl Miles <darryl-mailinglists@netbauds.net>]
44 [Ilya O. <vrghost@gmail.com>]
46 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
48 *) Don't set val to NULL when freeing up structures, it is freed up by
49 underlying code. If sizeof(void *) > sizeof(long) this can result in
50 zeroing past the valid field. (CVE-2009-0789)
51 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
53 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
54 checked correctly. This would allow some invalid signed attributes to
55 appear to verify correctly. (CVE-2009-0591)
56 [Ivan Nestlerode <inestlerode@us.ibm.com>]
58 *) Reject UniversalString and BMPString types with invalid lengths. This
59 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
60 a legal length. (CVE-2009-0590)
63 *) Set S/MIME signing as the default purpose rather than setting it
64 unconditionally. This allows applications to override it at the store
68 *) Permit restricted recursion of ASN1 strings. This is needed in practice
69 to handle some structures.
72 *) Improve efficiency of mem_gets: don't search whole buffer each time
74 [Jeremy Shapiro <jnshapir@us.ibm.com>]
76 *) New -hex option for openssl rand.
79 *) Print out UTF8String and NumericString when parsing ASN1.
82 *) Support NumericString type for name components.
85 *) Allow CC in the environment to override the automatically chosen
86 compiler. Note that nothing is done to ensure flags work with the
90 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
92 *) Properly check EVP_VerifyFinal() and similar return values
94 [Ben Laurie, Bodo Moeller, Google Security Team]
96 *) Enable TLS extensions by default.
99 *) Allow the CHIL engine to be loaded, whether the application is
100 multithreaded or not. (This does not release the developer from the
101 obligation to set up the dynamic locking callbacks.)
102 [Sander Temme <sander@temme.net>]
104 *) Use correct exit code if there is an error in dgst command.
105 [Steve Henson; problem pointed out by Roland Dirlewanger]
107 *) Tweak Configure so that you need to say "experimental-jpake" to enable
108 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
111 *) Add experimental JPAKE support, including demo authentication in
112 s_client and s_server.
115 *) Set the comparison function in v3_addr_canonize().
116 [Rob Austein <sra@hactrn.net>]
118 *) Add support for XMPP STARTTLS in s_client.
119 [Philip Paeps <philip@freebsd.org>]
121 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
122 to ensure that even with this option, only ciphersuites in the
123 server's preference list will be accepted. (Note that the option
124 applies only when resuming a session, so the earlier behavior was
125 just about the algorithm choice for symmetric cryptography.)
128 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
130 *) Fix NULL pointer dereference if a DTLS server recieved
131 ChangeCipherSpec as first record (CVE-2009-1386)
132 [Bodo Moeller, discovered by Alex Lam]
134 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
135 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
138 *) The fix in 0.9.8c that supposedly got rid of unsafe
139 double-checked locking was incomplete for RSA blinding,
140 addressing just one layer of what turns out to have been
141 doubly unsafe triple-checked locking.
143 So now fix this for real by retiring the MONT_HELPER macro
144 in crypto/rsa/rsa_eay.c.
146 [Bodo Moeller; problem pointed out by Marius Schilder]
148 *) Various precautionary measures:
150 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
152 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
153 (NB: This would require knowledge of the secret session ticket key
154 to exploit, in which case you'd be SOL either way.)
156 - Change bn_nist.c so that it will properly handle input BIGNUMs
157 outside the expected range.
159 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
162 [Neel Mehta, Bodo Moeller]
164 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
165 the load fails. Useful for distros.
166 [Ben Laurie and the FreeBSD team]
168 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
171 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
174 *) Expand ENGINE to support engine supplied SSL client certificate functions.
176 This work was sponsored by Logica.
179 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
180 keystores. Support for SSL/TLS client authentication too.
181 Not compiled unless enable-capieng specified to Configure.
183 This work was sponsored by Logica.
186 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
187 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
188 attribute creation routines such as certifcate requests and PKCS#12
192 Changes between 0.9.8g and 0.9.8h [28 May 2008]
194 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
195 handshake which could lead to a cilent crash as found using the
196 Codenomicon TLS test suite (CVE-2008-1672)
197 [Steve Henson, Mark Cox]
199 *) Fix double free in TLS server name extensions which could lead to
200 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
203 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
205 Clear the error queue to ensure that error entries left from
206 older function calls do not interfere with the correct operation.
207 [Lutz Jaenicke, Erik de Castro Lopo]
209 *) Remove root CA certificates of commercial CAs:
211 The OpenSSL project does not recommend any specific CA and does not
212 have any policy with respect to including or excluding any CA.
213 Therefore it does not make any sense to ship an arbitrary selection
214 of root CA certificates with the OpenSSL software.
217 *) RSA OAEP patches to fix two separate invalid memory reads.
218 The first one involves inputs when 'lzero' is greater than
219 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
220 before the beginning of from). The second one involves inputs where
221 the 'db' section contains nothing but zeroes (there is a one-byte
222 invalid read after the end of 'db').
223 [Ivan Nestlerode <inestlerode@us.ibm.com>]
225 *) Partial backport from 0.9.9-dev:
227 Introduce bn_mul_mont (dedicated Montgomery multiplication
228 procedure) as a candidate for BIGNUM assembler implementation.
229 While 0.9.9-dev uses assembler for various architectures, only
230 x86_64 is available by default here in the 0.9.8 branch, and
231 32-bit x86 is available through a compile-time setting.
233 To try the 32-bit x86 assembler implementation, use Configure
234 option "enable-montasm" (which exists only for this backport).
236 As "enable-montasm" for 32-bit x86 disclaims code stability
237 anyway, in this constellation we activate additional code
238 backported from 0.9.9-dev for further performance improvements,
239 namely BN_from_montgomery_word. (To enable this otherwise,
240 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
242 [Andy Polyakov (backport partially by Bodo Moeller)]
244 *) Add TLS session ticket callback. This allows an application to set
245 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
246 values. This is useful for key rollover for example where several key
247 sets may exist with different names.
250 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
251 This was broken until now in 0.9.8 releases, such that the only way
252 a registered ENGINE could be used (assuming it initialises
253 successfully on the host) was to explicitly set it as the default
254 for the relevant algorithms. This is in contradiction with 0.9.7
255 behaviour and the documentation. With this fix, when an ENGINE is
256 registered into a given algorithm's table of implementations, the
257 'uptodate' flag is reset so that auto-discovery will be used next
258 time a new context for that algorithm attempts to select an
260 [Ian Lister (tweaked by Geoff Thorpe)]
262 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
263 implemention in the following ways:
265 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
268 Lack of BER streaming support means one pass streaming processing is
269 only supported if data is detached: setting the streaming flag is
270 ignored for embedded content.
272 CMS support is disabled by default and must be explicitly enabled
273 with the enable-cms configuration option.
276 *) Update the GMP engine glue to do direct copies between BIGNUM and
277 mpz_t when openssl and GMP use the same limb size. Otherwise the
278 existing "conversion via a text string export" trick is still used.
279 [Paul Sheer <paulsheer@gmail.com>]
281 *) Zlib compression BIO. This is a filter BIO which compressed and
282 uncompresses any data passed through it.
285 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
286 RFC3394 compatible AES key wrapping.
289 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
290 sets string data without copying. X509_ALGOR_set0() and
291 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
292 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
293 from an X509_ATTRIBUTE structure optionally checking it occurs only
294 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
298 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
299 to get the expected BN_FLG_CONSTTIME behavior.
300 [Bodo Moeller (Google)]
304 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
305 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
306 - added some more tests to do_tests.pl
307 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
308 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
309 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
310 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
311 - various changes to netware.pl to enable gcc-cross builds on Win32
313 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
314 - various changes to fix missing prototype warnings
315 - fixed x86nasm.pl to create correct asm files for NASM COFF output
316 - added AES, WHIRLPOOL and CPUID assembler code to build files
317 - added missing AES assembler make rules to mk1mf.pl
318 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
319 [Guenter Knauf <eflash@gmx.net>]
321 *) Implement certificate status request TLS extension defined in RFC3546.
322 A client can set the appropriate parameters and receive the encoded
323 OCSP response via a callback. A server can query the supplied parameters
324 and set the encoded OCSP response in the callback. Add simplified examples
325 to s_client and s_server.
328 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
331 + Binary incompatibility of ssl_ctx_st structure
332 + DTLS interoperation with non-compliant servers
333 + Don't call get_session_cb() without proposed session
334 + Fix ia64 assembler code
335 [Andy Polyakov, Steve Henson]
337 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
339 *) DTLS Handshake overhaul. There were longstanding issues with
340 OpenSSL DTLS implementation, which were making it impossible for
341 RFC 4347 compliant client to communicate with OpenSSL server.
342 Unfortunately just fixing these incompatibilities would "cut off"
343 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
344 server keeps tolerating non RFC compliant syntax. The opposite is
345 not true, 0.9.8f client can not communicate with earlier server.
346 This update even addresses CVE-2007-4995.
349 *) Changes to avoid need for function casts in OpenSSL: some compilers
350 (gcc 4.2 and later) reject their use.
351 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
354 *) Add RFC4507 support to OpenSSL. This includes the corrections in
355 RFC4507bis. The encrypted ticket format is an encrypted encoded
356 SSL_SESSION structure, that way new session features are automatically
359 If a client application caches session in an SSL_SESSION structure
360 support is transparent because tickets are now stored in the encoded
363 The SSL_CTX structure automatically generates keys for ticket
364 protection in servers so again support should be possible
365 with no application modification.
367 If a client or server wishes to disable RFC4507 support then the option
368 SSL_OP_NO_TICKET can be set.
370 Add a TLS extension debugging callback to allow the contents of any client
371 or server extensions to be examined.
373 This work was sponsored by Google.
376 *) Add initial support for TLS extensions, specifically for the server_name
377 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
378 have new members for a host name. The SSL data structure has an
379 additional member SSL_CTX *initial_ctx so that new sessions can be
380 stored in that context to allow for session resumption, even after the
381 SSL has been switched to a new SSL_CTX in reaction to a client's
382 server_name extension.
384 New functions (subject to change):
387 SSL_get_servername_type()
390 New CTRL codes and macros (subject to change):
392 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
393 - SSL_CTX_set_tlsext_servername_callback()
394 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
395 - SSL_CTX_set_tlsext_servername_arg()
396 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
398 openssl s_client has a new '-servername ...' option.
400 openssl s_server has new options '-servername_host ...', '-cert2 ...',
401 '-key2 ...', '-servername_fatal' (subject to change). This allows
402 testing the HostName extension for a specific single host name ('-cert'
403 and '-key' remain fallbacks for handshakes without HostName
404 negotiation). If the unrecogninzed_name alert has to be sent, this by
405 default is a warning; it becomes fatal with the '-servername_fatal'
408 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
410 *) Add AES and SSE2 assembly language support to VC++ build.
413 *) Mitigate attack on final subtraction in Montgomery reduction.
416 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
417 (which previously caused an internal error).
420 *) Squeeze another 10% out of IGE mode when in != out.
423 *) AES IGE mode speedup.
424 [Dean Gaudet (Google)]
426 *) Add the Korean symmetric 128-bit cipher SEED (see
427 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
428 add SEED ciphersuites from RFC 4162:
430 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
431 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
432 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
433 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
435 To minimize changes between patchlevels in the OpenSSL 0.9.8
436 series, SEED remains excluded from compilation unless OpenSSL
437 is configured with 'enable-seed'.
440 *) Mitigate branch prediction attacks, which can be practical if a
441 single processor is shared, allowing a spy process to extract
442 information. For detailed background information, see
443 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
444 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
445 and Necessary Software Countermeasures"). The core of the change
446 are new versions BN_div_no_branch() and
447 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
448 respectively, which are slower, but avoid the security-relevant
449 conditional branches. These are automatically called by BN_div()
450 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
451 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
452 remove a conditional branch.
454 BN_FLG_CONSTTIME is the new name for the previous
455 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
456 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
457 in the exponent causes BN_mod_exp_mont() to use the alternative
458 implementation in BN_mod_exp_mont_consttime().) The old name
459 remains as a deprecated alias.
461 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
462 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
463 constant-time implementations for more than just exponentiation.
464 Here too the old name is kept as a deprecated alias.
466 BN_BLINDING_new() will now use BN_dup() for the modulus so that
467 the BN_BLINDING structure gets an independent copy of the
468 modulus. This means that the previous "BIGNUM *m" argument to
469 BN_BLINDING_new() and to BN_BLINDING_create_param() now
470 essentially becomes "const BIGNUM *m", although we can't actually
471 change this in the header file before 0.9.9. It allows
472 RSA_setup_blinding() to use BN_with_flags() on the modulus to
473 enable BN_FLG_CONSTTIME.
475 [Matthew D Wood (Intel Corp)]
477 *) In the SSL/TLS server implementation, be strict about session ID
478 context matching (which matters if an application uses a single
479 external cache for different purposes). Previously,
480 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
481 set. This did ensure strict client verification, but meant that,
482 with applications using a single external cache for quite
483 different requirements, clients could circumvent ciphersuite
484 restrictions for a given session ID context by starting a session
485 in a different context.
488 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
489 a ciphersuite string such as "DEFAULT:RSA" cannot enable
490 authentication-only ciphersuites.
493 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
494 not complete and could lead to a possible single byte overflow
495 (CVE-2007-5135) [Ben Laurie]
497 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
499 *) Since AES128 and AES256 (and similarly Camellia128 and
500 Camellia256) share a single mask bit in the logic of
501 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
502 kludge to work properly if AES128 is available and AES256 isn't
503 (or if Camellia128 is available and Camellia256 isn't).
506 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
507 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
508 When a point or a seed is encoded in a BIT STRING, we need to
509 prevent the removal of trailing zero bits to get the proper DER
510 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
511 of a NamedBitList, for which trailing 0 bits need to be removed.)
514 *) Have SSL/TLS server implementation tolerate "mismatched" record
515 protocol version while receiving ClientHello even if the
516 ClientHello is fragmented. (The server can't insist on the
517 particular protocol version it has chosen before the ServerHello
518 message has informed the client about his choice.)
521 *) Add RFC 3779 support.
522 [Rob Austein for ARIN, Ben Laurie]
524 *) Load error codes if they are not already present instead of using a
525 static variable. This allows them to be cleanly unloaded and reloaded.
526 Improve header file function name parsing.
529 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
530 or CAPABILITY handshake as required by RFCs.
533 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
535 *) Introduce limits to prevent malicious keys being able to
536 cause a denial of service. (CVE-2006-2940)
537 [Steve Henson, Bodo Moeller]
539 *) Fix ASN.1 parsing of certain invalid structures that can result
540 in a denial of service. (CVE-2006-2937) [Steve Henson]
542 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
543 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
545 *) Fix SSL client code which could crash if connecting to a
546 malicious SSLv2 server. (CVE-2006-4343)
547 [Tavis Ormandy and Will Drewry, Google Security Team]
549 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
550 match only those. Before that, "AES256-SHA" would be interpreted
551 as a pattern and match "AES128-SHA" too (since AES128-SHA got
552 the same strength classification in 0.9.7h) as we currently only
553 have a single AES bit in the ciphersuite description bitmap.
554 That change, however, also applied to ciphersuite strings such as
555 "RC4-MD5" that intentionally matched multiple ciphersuites --
556 namely, SSL 2.0 ciphersuites in addition to the more common ones
557 from SSL 3.0/TLS 1.0.
559 So we change the selection algorithm again: Naming an explicit
560 ciphersuite selects this one ciphersuite, and any other similar
561 ciphersuite (same bitmap) from *other* protocol versions.
562 Thus, "RC4-MD5" again will properly select both the SSL 2.0
563 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
565 Since SSL 2.0 does not have any ciphersuites for which the
566 128/256 bit distinction would be relevant, this works for now.
567 The proper fix will be to use different bits for AES128 and
568 AES256, which would have avoided the problems from the beginning;
569 however, bits are scarce, so we can only do this in a new release
570 (not just a patchlevel) when we can change the SSL_CIPHER
571 definition to split the single 'unsigned long mask' bitmap into
572 multiple values to extend the available space.
576 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
578 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
579 (CVE-2006-4339) [Ben Laurie and Google Security Team]
581 *) Add AES IGE and biIGE modes.
584 *) Change the Unix randomness entropy gathering to use poll() when
585 possible instead of select(), since the latter has some
586 undesirable limitations.
587 [Darryl Miles via Richard Levitte and Bodo Moeller]
589 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
590 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
591 cannot be implicitly activated as part of, e.g., the "AES" alias.
592 However, please upgrade to OpenSSL 0.9.9[-dev] for
593 non-experimental use of the ECC ciphersuites to get TLS extension
594 support, which is required for curve and point format negotiation
595 to avoid potential handshake problems.
598 *) Disable rogue ciphersuites:
600 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
601 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
602 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
604 The latter two were purportedly from
605 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
608 Also deactivate the remaining ciphersuites from
609 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
610 unofficial, and the ID has long expired.
613 *) Fix RSA blinding Heisenbug (problems sometimes occured on
614 dual-core machines) and other potential thread-safety issues.
617 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
618 versions), which is now available for royalty-free use
619 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
620 Also, add Camellia TLS ciphersuites from RFC 4132.
622 To minimize changes between patchlevels in the OpenSSL 0.9.8
623 series, Camellia remains excluded from compilation unless OpenSSL
624 is configured with 'enable-camellia'.
627 *) Disable the padding bug check when compression is in use. The padding
628 bug check assumes the first packet is of even length, this is not
629 necessarily true if compresssion is enabled and can result in false
630 positives causing handshake failure. The actual bug test is ancient
631 code so it is hoped that implementations will either have fixed it by
632 now or any which still have the bug do not support compression.
635 Changes between 0.9.8a and 0.9.8b [04 May 2006]
637 *) When applying a cipher rule check to see if string match is an explicit
638 cipher suite and only match that one cipher suite if it is.
641 *) Link in manifests for VC++ if needed.
642 [Austin Ziegler <halostatue@gmail.com>]
644 *) Update support for ECC-based TLS ciphersuites according to
645 draft-ietf-tls-ecc-12.txt with proposed changes (but without
646 TLS extensions, which are supported starting with the 0.9.9
647 branch, not in the OpenSSL 0.9.8 branch).
650 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
651 opaque EVP_CIPHER_CTX handling.
654 *) Fixes and enhancements to zlib compression code. We now only use
655 "zlib1.dll" and use the default __cdecl calling convention on Win32
656 to conform with the standards mentioned here:
657 http://www.zlib.net/DLL_FAQ.txt
658 Static zlib linking now works on Windows and the new --with-zlib-include
659 --with-zlib-lib options to Configure can be used to supply the location
660 of the headers and library. Gracefully handle case where zlib library
664 *) Several fixes and enhancements to the OID generation code. The old code
665 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
666 handle numbers larger than ULONG_MAX, truncated printing and had a
667 non standard OBJ_obj2txt() behaviour.
670 *) Add support for building of engines under engine/ as shared libraries
671 under VC++ build system.
674 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
675 Hopefully, we will not see any false combination of paths any more.
678 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
680 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
681 (part of SSL_OP_ALL). This option used to disable the
682 countermeasure against man-in-the-middle protocol-version
683 rollback in the SSL 2.0 server implementation, which is a bad
684 idea. (CVE-2005-2969)
686 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
687 for Information Security, National Institute of Advanced Industrial
688 Science and Technology [AIST], Japan)]
690 *) Add two function to clear and return the verify parameter flags.
693 *) Keep cipherlists sorted in the source instead of sorting them at
694 runtime, thus removing the need for a lock.
697 *) Avoid some small subgroup attacks in Diffie-Hellman.
698 [Nick Mathewson and Ben Laurie]
700 *) Add functions for well-known primes.
703 *) Extended Windows CE support.
704 [Satoshi Nakamura and Andy Polyakov]
706 *) Initialize SSL_METHOD structures at compile time instead of during
707 runtime, thus removing the need for a lock.
710 *) Make PKCS7_decrypt() work even if no certificate is supplied by
711 attempting to decrypt each encrypted key in turn. Add support to
715 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
717 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
720 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
723 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
724 key into the same file any more.
727 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
730 *) Add -utf8 command line and config file option to 'ca'.
731 [Stefan <stf@udoma.org]
733 *) Removed the macro des_crypt(), as it seems to conflict with some
734 libraries. Use DES_crypt().
737 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
738 involves renaming the source and generated shared-libs for
739 both. The engines will accept the corrected or legacy ids
740 ('ncipher' and '4758_cca' respectively) when binding. NB,
741 this only applies when building 'shared'.
742 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
744 *) Add attribute functions to EVP_PKEY structure. Modify
745 PKCS12_create() to recognize a CSP name attribute and
746 use it. Make -CSP option work again in pkcs12 utility.
749 *) Add new functionality to the bn blinding code:
750 - automatic re-creation of the BN_BLINDING parameters after
751 a fixed number of uses (currently 32)
752 - add new function for parameter creation
753 - introduce flags to control the update behaviour of the
754 BN_BLINDING parameters
755 - hide BN_BLINDING structure
756 Add a second BN_BLINDING slot to the RSA structure to improve
757 performance when a single RSA object is shared among several
761 *) Add support for DTLS.
762 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
764 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
765 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
768 *) Remove buggy and incompletet DH cert support from
769 ssl/ssl_rsa.c and ssl/s3_both.c
772 *) Use SHA-1 instead of MD5 as the default digest algorithm for
773 the apps/openssl applications.
776 *) Compile clean with "-Wall -Wmissing-prototypes
777 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
778 DEBUG_SAFESTACK must also be set.
781 *) Change ./Configure so that certain algorithms can be disabled by default.
782 The new counterpiece to "no-xxx" is "enable-xxx".
784 The patented RC5 and MDC2 algorithms will now be disabled unless
785 "enable-rc5" and "enable-mdc2", respectively, are specified.
787 (IDEA remains enabled despite being patented. This is because IDEA
788 is frequently required for interoperability, and there is no license
789 fee for non-commercial use. As before, "no-idea" can be used to
790 avoid this algorithm.)
794 *) Add processing of proxy certificates (see RFC 3820). This work was
795 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
796 EGEE (Enabling Grids for E-science in Europe).
799 *) RC4 performance overhaul on modern architectures/implementations, such
800 as Intel P4, IA-64 and AMD64.
803 *) New utility extract-section.pl. This can be used specify an alternative
804 section number in a pod file instead of having to treat each file as
805 a separate case in Makefile. This can be done by adding two lines to the
808 =for comment openssl_section:XXX
810 The blank line is mandatory.
814 *) New arguments -certform, -keyform and -pass for s_client and s_server
815 to allow alternative format key and certificate files and passphrase
819 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
820 update associated structures and add various utility functions.
822 Add new policy related verify parameters, include policy checking in
823 standard verify code. Enhance 'smime' application with extra parameters
824 to support policy checking and print out.
827 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
828 Nehemiah processors. These extensions support AES encryption in hardware
829 as well as RNG (though RNG support is currently disabled).
830 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
832 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
835 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
836 [Andy Polyakov and a number of other people]
838 *) Improved PowerPC platform support. Most notably BIGNUM assembler
839 implementation contributed by IBM.
840 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
842 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
843 exponent rather than 'unsigned long'. There is a corresponding change to
844 the new 'rsa_keygen' element of the RSA_METHOD structure.
845 [Jelte Jansen, Geoff Thorpe]
847 *) Functionality for creating the initial serial number file is now
848 moved from CA.pl to the 'ca' utility with a new option -create_serial.
850 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
851 number file to 1, which is bound to cause problems. To avoid
852 the problems while respecting compatibility between different 0.9.7
853 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
854 CA.pl for serial number initialization. With the new release 0.9.8,
855 we can fix the problem directly in the 'ca' utility.)
858 *) Reduced header interdepencies by declaring more opaque objects in
859 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
860 give fewer recursive includes, which could break lazy source code - so
861 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
862 developers should define this symbol when building and using openssl to
863 ensure they track the recommended behaviour, interfaces, [etc], but
864 backwards-compatible behaviour prevails when this isn't defined.
867 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
870 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
871 This will generate a random key of the appropriate length based on the
872 cipher context. The EVP_CIPHER can provide its own random key generation
873 routine to support keys of a specific form. This is used in the des and
874 3des routines to generate a key of the correct parity. Update S/MIME
875 code to use new functions and hence generate correct parity DES keys.
876 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
877 valid (weak or incorrect parity).
880 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
881 as looking them up. This is useful when the verified structure may contain
882 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
883 present unless the new PKCS7_NO_CRL flag is asserted.
886 *) Extend ASN1 oid configuration module. It now additionally accepts the
889 shortName = some long name, 1.2.3.4
892 *) Reimplemented the BN_CTX implementation. There is now no more static
893 limitation on the number of variables it can handle nor the depth of the
894 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
895 information can now expand as required, and rather than having a single
896 static array of bignums, BN_CTX now uses a linked-list of such arrays
897 allowing it to expand on demand whilst maintaining the usefulness of
901 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
902 to allow all RSA operations to function using a single BN_CTX.
905 *) Preliminary support for certificate policy evaluation and checking. This
906 is initially intended to pass the tests outlined in "Conformance Testing
907 of Relying Party Client Certificate Path Processing Logic" v1.07.
910 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
911 remained unused and not that useful. A variety of other little bignum
912 tweaks and fixes have also been made continuing on from the audit (see
916 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
917 associated ASN1, EVP and SSL functions and old ASN1 macros.
920 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
921 and this should never fail. So the return value from the use of
922 BN_set_word() (which can fail due to needless expansion) is now deprecated;
923 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
926 *) BN_CTX_get() should return zero-valued bignums, providing the same
927 initialised value as BN_new().
928 [Geoff Thorpe, suggested by Ulf Möller]
930 *) Support for inhibitAnyPolicy certificate extension.
933 *) An audit of the BIGNUM code is underway, for which debugging code is
934 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
935 is considered valid when processing BIGNUMs, and causes execution to
936 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
937 further steps are taken to deliberately pollute unused data in BIGNUM
938 structures to try and expose faulty code further on. For now, openssl will
939 (in its default mode of operation) continue to tolerate the inconsistent
940 forms that it has tolerated in the past, but authors and packagers should
941 consider trying openssl and their own applications when compiled with
942 these debugging symbols defined. It will help highlight potential bugs in
943 their own code, and will improve the test coverage for OpenSSL itself. At
944 some point, these tighter rules will become openssl's default to improve
945 maintainability, though the assert()s and other overheads will remain only
946 in debugging configurations. See bn.h for more details.
947 [Geoff Thorpe, Nils Larsch, Ulf Möller]
949 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
950 that can only be obtained through BN_CTX_new() (which implicitly
951 initialises it). The presence of this function only made it possible
952 to overwrite an existing structure (and cause memory leaks).
955 *) Because of the callback-based approach for implementing LHASH as a
956 template type, lh_insert() adds opaque objects to hash-tables and
957 lh_doall() or lh_doall_arg() are typically used with a destructor callback
958 to clean up those corresponding objects before destroying the hash table
959 (and losing the object pointers). So some over-zealous constifications in
960 LHASH have been relaxed so that lh_insert() does not take (nor store) the
961 objects as "const" and the lh_doall[_arg] callback wrappers are not
962 prototyped to have "const" restrictions on the object pointers they are
963 given (and so aren't required to cast them away any more).
966 *) The tmdiff.h API was so ugly and minimal that our own timing utility
967 (speed) prefers to use its own implementation. The two implementations
968 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
969 its object type properly exposed (MS_TM) instead of casting to/from "char
970 *". This may still change yet if someone realises MS_TM and "ms_time_***"
971 aren't necessarily the greatest nomenclatures - but this is what was used
972 internally to the implementation so I've used that for now.
975 *) Ensure that deprecated functions do not get compiled when
976 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
977 the self-tests were still using deprecated key-generation functions so
978 these have been updated also.
981 *) Reorganise PKCS#7 code to separate the digest location functionality
982 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
983 New function PKCS7_set_digest() to set the digest type for PKCS#7
984 digestedData type. Add additional code to correctly generate the
985 digestedData type and add support for this type in PKCS7 initialization
989 *) New function PKCS7_set0_type_other() this initializes a PKCS7
990 structure of type "other".
993 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
994 sure the loop does correctly stop and breaking ("division by zero")
995 modulus operations are not performed. The (pre-generated) prime
996 table crypto/bn/bn_prime.h was already correct, but it could not be
997 re-generated on some platforms because of the "division by zero"
998 situation in the script.
999 [Ralf S. Engelschall]
1001 *) Update support for ECC-based TLS ciphersuites according to
1002 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
1003 SHA-1 now is only used for "small" curves (where the
1004 representation of a field element takes up to 24 bytes); for
1005 larger curves, the field element resulting from ECDH is directly
1006 used as premaster secret.
1007 [Douglas Stebila (Sun Microsystems Laboratories)]
1009 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
1010 curve secp160r1 to the tests.
1011 [Douglas Stebila (Sun Microsystems Laboratories)]
1013 *) Add the possibility to load symbols globally with DSO.
1014 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
1016 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
1017 control of the error stack.
1020 *) Add support for STORE in ENGINE.
1023 *) Add the STORE type. The intention is to provide a common interface
1024 to certificate and key stores, be they simple file-based stores, or
1025 HSM-type store, or LDAP stores, or...
1026 NOTE: The code is currently UNTESTED and isn't really used anywhere.
1029 *) Add a generic structure called OPENSSL_ITEM. This can be used to
1030 pass a list of arguments to any function as well as provide a way
1031 for a function to pass data back to the caller.
1034 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
1035 works like BUF_strdup() but can be used to duplicate a portion of
1036 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
1040 *) Add the function sk_find_ex() which works like sk_find(), but will
1041 return an index to an element even if an exact match couldn't be
1042 found. The index is guaranteed to point at the element where the
1043 searched-for key would be inserted to preserve sorting order.
1046 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
1047 takes an extra flags argument for optional functionality. Currently,
1048 the following flags are defined:
1050 OBJ_BSEARCH_VALUE_ON_NOMATCH
1051 This one gets OBJ_bsearch_ex() to return a pointer to the first
1052 element where the comparing function returns a negative or zero
1055 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
1056 This one gets OBJ_bsearch_ex() to return a pointer to the first
1057 element where the comparing function returns zero. This is useful
1058 if there are more than one element where the comparing function
1062 *) Make it possible to create self-signed certificates with 'openssl ca'
1063 in such a way that the self-signed certificate becomes part of the
1064 CA database and uses the same mechanisms for serial number generation
1065 as all other certificate signing. The new flag '-selfsign' enables
1066 this functionality. Adapt CA.sh and CA.pl.in.
1069 *) Add functionality to check the public key of a certificate request
1070 against a given private. This is useful to check that a certificate
1071 request can be signed by that key (self-signing).
1074 *) Make it possible to have multiple active certificates with the same
1075 subject in the CA index file. This is done only if the keyword
1076 'unique_subject' is set to 'no' in the main CA section (default
1077 if 'CA_default') of the configuration file. The value is saved
1078 with the database itself in a separate index attribute file,
1079 named like the index file with '.attr' appended to the name.
1082 *) Generate muti valued AVAs using '+' notation in config files for
1086 *) Support for nameConstraints certificate extension.
1089 *) Support for policyConstraints certificate extension.
1092 *) Support for policyMappings certificate extension.
1095 *) Make sure the default DSA_METHOD implementation only uses its
1096 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
1097 and change its own handlers to be NULL so as to remove unnecessary
1098 indirection. This lets alternative implementations fallback to the
1099 default implementation more easily.
1102 *) Support for directoryName in GeneralName related extensions
1106 *) Make it possible to link applications using Makefile.shared.
1107 Make that possible even when linking against static libraries!
1110 *) Support for single pass processing for S/MIME signing. This now
1111 means that S/MIME signing can be done from a pipe, in addition
1112 cleartext signing (multipart/signed type) is effectively streaming
1113 and the signed data does not need to be all held in memory.
1115 This is done with a new flag PKCS7_STREAM. When this flag is set
1116 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
1117 is done after the data is output (and digests calculated) in
1118 SMIME_write_PKCS7().
1121 *) Add full support for -rpath/-R, both in shared libraries and
1122 applications, at least on the platforms where it's known how
1126 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
1127 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
1128 will now compute a table of multiples of the generator that
1129 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
1130 faster (notably in the case of a single point multiplication,
1131 scalar * generator).
1132 [Nils Larsch, Bodo Moeller]
1134 *) IPv6 support for certificate extensions. The various extensions
1135 which use the IP:a.b.c.d can now take IPv6 addresses using the
1136 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
1140 *) Added an ENGINE that implements RSA by performing private key
1141 exponentiations with the GMP library. The conversions to and from
1142 GMP's mpz_t format aren't optimised nor are any montgomery forms
1143 cached, and on x86 it appears OpenSSL's own performance has caught up.
1144 However there are likely to be other architectures where GMP could
1145 provide a boost. This ENGINE is not built in by default, but it can be
1146 specified at Configure time and should be accompanied by the necessary
1147 linker additions, eg;
1148 ./config -DOPENSSL_USE_GMP -lgmp
1151 *) "openssl engine" will not display ENGINE/DSO load failure errors when
1152 testing availability of engines with "-t" - the old behaviour is
1153 produced by increasing the feature's verbosity with "-tt".
1156 *) ECDSA routines: under certain error conditions uninitialized BN objects
1157 could be freed. Solution: make sure initialization is performed early
1158 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
1162 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
1163 and DH_METHOD (eg. by ENGINE implementations) to override the normal
1164 software implementations. For DSA and DH, parameter generation can
1165 also be overriden by providing the appropriate method callbacks.
1168 *) Change the "progress" mechanism used in key-generation and
1169 primality testing to functions that take a new BN_GENCB pointer in
1170 place of callback/argument pairs. The new API functions have "_ex"
1171 postfixes and the older functions are reimplemented as wrappers for
1172 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
1173 declarations of the old functions to help (graceful) attempts to
1174 migrate to the new functions. Also, the new key-generation API
1175 functions operate on a caller-supplied key-structure and return
1176 success/failure rather than returning a key or NULL - this is to
1177 help make "keygen" another member function of RSA_METHOD etc.
1179 Example for using the new callback interface:
1181 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
1185 BN_GENCB_set(&my_cb, my_callback, my_arg);
1187 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
1188 /* For the meaning of a, b in calls to my_callback(), see the
1189 * documentation of the function that calls the callback.
1190 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
1191 * my_callback should return 1 if it wants BN_is_prime_ex()
1192 * to continue, or 0 to stop.
1197 *) Change the ZLIB compression method to be stateful, and make it
1198 available to TLS with the number defined in
1199 draft-ietf-tls-compression-04.txt.
1202 *) Add the ASN.1 structures and functions for CertificatePair, which
1203 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
1205 CertificatePair ::= SEQUENCE {
1206 forward [0] Certificate OPTIONAL,
1207 reverse [1] Certificate OPTIONAL,
1208 -- at least one of the pair shall be present -- }
1210 Also implement the PEM functions to read and write certificate
1211 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
1213 This needed to be defined, mostly for the sake of the LDAP
1214 attribute crossCertificatePair, but may prove useful elsewhere as
1218 *) Make it possible to inhibit symlinking of shared libraries in
1219 Makefile.shared, for Cygwin's sake.
1222 *) Extend the BIGNUM API by creating a function
1223 void BN_set_negative(BIGNUM *a, int neg);
1224 and a macro that behave like
1225 int BN_is_negative(const BIGNUM *a);
1227 to avoid the need to access 'a->neg' directly in applications.
1230 *) Implement fast modular reduction for pseudo-Mersenne primes
1231 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
1232 EC_GROUP_new_curve_GFp() will now automatically use this
1234 [Nils Larsch <nla@trustcenter.de>]
1236 *) Add new lock type (CRYPTO_LOCK_BN).
1239 *) Change the ENGINE framework to automatically load engines
1240 dynamically from specific directories unless they could be
1241 found to already be built in or loaded. Move all the
1242 current engines except for the cryptodev one to a new
1244 The engines in engines/ are built as shared libraries if
1245 the "shared" options was given to ./Configure or ./config.
1246 Otherwise, they are inserted in libcrypto.a.
1247 /usr/local/ssl/engines is the default directory for dynamic
1248 engines, but that can be overriden at configure time through
1249 the usual use of --prefix and/or --openssldir, and at run
1250 time with the environment variable OPENSSL_ENGINES.
1251 [Geoff Thorpe and Richard Levitte]
1253 *) Add Makefile.shared, a helper makefile to build shared
1254 libraries. Addapt Makefile.org.
1257 *) Add version info to Win32 DLLs.
1258 [Peter 'Luna' Runestig" <peter@runestig.com>]
1260 *) Add new 'medium level' PKCS#12 API. Certificates and keys
1261 can be added using this API to created arbitrary PKCS#12
1262 files while avoiding the low level API.
1264 New options to PKCS12_create(), key or cert can be NULL and
1265 will then be omitted from the output file. The encryption
1266 algorithm NIDs can be set to -1 for no encryption, the mac
1267 iteration count can be set to 0 to omit the mac.
1269 Enhance pkcs12 utility by making the -nokeys and -nocerts
1270 options work when creating a PKCS#12 file. New option -nomac
1271 to omit the mac, NONE can be set for an encryption algorithm.
1272 New code is modified to use the enhanced PKCS12_create()
1273 instead of the low level API.
1276 *) Extend ASN1 encoder to support indefinite length constructed
1277 encoding. This can output sequences tags and octet strings in
1278 this form. Modify pk7_asn1.c to support indefinite length
1279 encoding. This is experimental and needs additional code to
1280 be useful, such as an ASN1 bio and some enhanced streaming
1283 Extend template encode functionality so that tagging is passed
1284 down to the template encoder.
1287 *) Let 'openssl req' fail if an argument to '-newkey' is not
1288 recognized instead of using RSA as a default.
1291 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
1292 As these are not official, they are not included in "ALL";
1293 the "ECCdraft" ciphersuite group alias can be used to select them.
1294 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
1296 *) Add ECDH engine support.
1297 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
1299 *) Add ECDH in new directory crypto/ecdh/.
1300 [Douglas Stebila (Sun Microsystems Laboratories)]
1302 *) Let BN_rand_range() abort with an error after 100 iterations
1303 without success (which indicates a broken PRNG).
1306 *) Change BN_mod_sqrt() so that it verifies that the input value
1307 is really the square of the return value. (Previously,
1308 BN_mod_sqrt would show GIGO behaviour.)
1311 *) Add named elliptic curves over binary fields from X9.62, SECG,
1312 and WAP/WTLS; add OIDs that were still missing.
1314 [Sheueling Chang Shantz and Douglas Stebila
1315 (Sun Microsystems Laboratories)]
1317 *) Extend the EC library for elliptic curves over binary fields
1318 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
1321 EC_GF2m_simple_method
1325 EC_GROUP_new_curve_GF2m
1326 EC_GROUP_set_curve_GF2m
1327 EC_GROUP_get_curve_GF2m
1328 EC_POINT_set_affine_coordinates_GF2m
1329 EC_POINT_get_affine_coordinates_GF2m
1330 EC_POINT_set_compressed_coordinates_GF2m
1332 Point compression for binary fields is disabled by default for
1333 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
1336 As binary polynomials are represented as BIGNUMs, various members
1337 of the EC_GROUP and EC_POINT data structures can be shared
1338 between the implementations for prime fields and binary fields;
1339 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
1340 are essentially identical to their ..._GFp counterparts.
1341 (For simplicity, the '..._GFp' prefix has been dropped from
1342 various internal method names.)
1344 An internal 'field_div' method (similar to 'field_mul' and
1345 'field_sqr') has been added; this is used only for binary fields.
1347 [Sheueling Chang Shantz and Douglas Stebila
1348 (Sun Microsystems Laboratories)]
1350 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
1351 through methods ('mul', 'precompute_mult').
1353 The generic implementations (now internally called 'ec_wNAF_mul'
1354 and 'ec_wNAF_precomputed_mult') remain the default if these
1355 methods are undefined.
1357 [Sheueling Chang Shantz and Douglas Stebila
1358 (Sun Microsystems Laboratories)]
1360 *) New function EC_GROUP_get_degree, which is defined through
1361 EC_METHOD. For curves over prime fields, this returns the bit
1362 length of the modulus.
1364 [Sheueling Chang Shantz and Douglas Stebila
1365 (Sun Microsystems Laboratories)]
1367 *) New functions EC_GROUP_dup, EC_POINT_dup.
1368 (These simply call ..._new and ..._copy).
1370 [Sheueling Chang Shantz and Douglas Stebila
1371 (Sun Microsystems Laboratories)]
1373 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
1374 Polynomials are represented as BIGNUMs (where the sign bit is not
1375 used) in the following functions [macros]:
1378 BN_GF2m_sub [= BN_GF2m_add]
1379 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
1380 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
1381 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
1383 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
1384 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
1385 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
1386 BN_GF2m_cmp [= BN_ucmp]
1388 (Note that only the 'mod' functions are actually for fields GF(2^m).
1389 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
1391 For some functions, an the irreducible polynomial defining a
1392 field can be given as an 'unsigned int[]' with strictly
1393 decreasing elements giving the indices of those bits that are set;
1394 i.e., p[] represents the polynomial
1395 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
1397 p[0] > p[1] > ... > p[k] = 0.
1398 This applies to the following functions:
1403 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
1404 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
1406 BN_GF2m_mod_sqrt_arr
1407 BN_GF2m_mod_solve_quad_arr
1411 Conversion can be performed by the following functions:
1416 bntest.c has additional tests for binary polynomial arithmetic.
1418 Two implementations for BN_GF2m_mod_div() are available.
1419 The default algorithm simply uses BN_GF2m_mod_inv() and
1420 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
1421 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
1422 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
1424 [Sheueling Chang Shantz and Douglas Stebila
1425 (Sun Microsystems Laboratories)]
1427 *) Add new error code 'ERR_R_DISABLED' that can be used when some
1428 functionality is disabled at compile-time.
1429 [Douglas Stebila <douglas.stebila@sun.com>]
1431 *) Change default behaviour of 'openssl asn1parse' so that more
1432 information is visible when viewing, e.g., a certificate:
1434 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
1435 mode the content of non-printable OCTET STRINGs is output in a
1436 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
1437 avoid the appearance of a printable string.
1438 [Nils Larsch <nla@trustcenter.de>]
1440 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
1442 EC_GROUP_set_asn1_flag()
1443 EC_GROUP_get_asn1_flag()
1444 EC_GROUP_set_point_conversion_form()
1445 EC_GROUP_get_point_conversion_form()
1446 These control ASN1 encoding details:
1447 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
1448 has been set to OPENSSL_EC_NAMED_CURVE.
1449 - Points are encoded in uncompressed form by default; options for
1450 asn1_for are as for point2oct, namely
1451 POINT_CONVERSION_COMPRESSED
1452 POINT_CONVERSION_UNCOMPRESSED
1453 POINT_CONVERSION_HYBRID
1455 Also add 'seed' and 'seed_len' members to EC_GROUP with access
1458 EC_GROUP_get0_seed()
1459 EC_GROUP_get_seed_len()
1460 This is used only for ASN1 purposes (so far).
1461 [Nils Larsch <nla@trustcenter.de>]
1463 *) Add 'field_type' member to EC_METHOD, which holds the NID
1464 of the appropriate field type OID. The new function
1465 EC_METHOD_get_field_type() returns this value.
1466 [Nils Larsch <nla@trustcenter.de>]
1471 EC_POINT_point2hex()
1472 EC_POINT_hex2point()
1473 providing useful interfaces to EC_POINT_point2oct() and
1474 EC_POINT_oct2point().
1475 [Nils Larsch <nla@trustcenter.de>]
1477 *) Change internals of the EC library so that the functions
1478 EC_GROUP_set_generator()
1479 EC_GROUP_get_generator()
1480 EC_GROUP_get_order()
1481 EC_GROUP_get_cofactor()
1482 are implemented directly in crypto/ec/ec_lib.c and not dispatched
1483 to methods, which would lead to unnecessary code duplication when
1484 adding different types of curves.
1485 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
1487 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
1488 arithmetic, and such that modified wNAFs are generated
1489 (which avoid length expansion in many cases).
1492 *) Add a function EC_GROUP_check_discriminant() (defined via
1493 EC_METHOD) that verifies that the curve discriminant is non-zero.
1495 Add a function EC_GROUP_check() that makes some sanity tests
1496 on a EC_GROUP, its generator and order. This includes
1497 EC_GROUP_check_discriminant().
1498 [Nils Larsch <nla@trustcenter.de>]
1500 *) Add ECDSA in new directory crypto/ecdsa/.
1502 Add applications 'openssl ecparam' and 'openssl ecdsa'
1503 (these are based on 'openssl dsaparam' and 'openssl dsa').
1505 ECDSA support is also included in various other files across the
1506 library. Most notably,
1507 - 'openssl req' now has a '-newkey ecdsa:file' option;
1508 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
1509 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
1510 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
1511 them suitable for ECDSA where domain parameters must be
1512 extracted before the specific public key;
1513 - ECDSA engine support has been added.
1514 [Nils Larsch <nla@trustcenter.de>]
1516 *) Include some named elliptic curves, and add OIDs from X9.62,
1517 SECG, and WAP/WTLS. Each curve can be obtained from the new
1519 EC_GROUP_new_by_curve_name(),
1520 and the list of available named curves can be obtained with
1521 EC_get_builtin_curves().
1522 Also add a 'curve_name' member to EC_GROUP objects, which can be
1524 EC_GROUP_set_curve_name()
1525 EC_GROUP_get_curve_name()
1526 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
1528 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
1529 was actually never needed) and in BN_mul(). The removal in BN_mul()
1530 required a small change in bn_mul_part_recursive() and the addition
1531 of the functions bn_cmp_part_words(), bn_sub_part_words() and
1532 bn_add_part_words(), which do the same thing as bn_cmp_words(),
1533 bn_sub_words() and bn_add_words() except they take arrays with
1537 Changes between 0.9.7m and 0.9.7n [xx XXX xxxx]
1539 *) In the SSL/TLS server implementation, be strict about session ID
1540 context matching (which matters if an application uses a single
1541 external cache for different purposes). Previously,
1542 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
1543 set. This did ensure strict client verification, but meant that,
1544 with applications using a single external cache for quite
1545 different requirements, clients could circumvent ciphersuite
1546 restrictions for a given session ID context by starting a session
1547 in a different context.
1550 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
1552 *) Cleanse PEM buffers before freeing them since they may contain
1554 [Benjamin Bennett <ben@psc.edu>]
1556 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1557 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1558 authentication-only ciphersuites.
1561 *) Since AES128 and AES256 share a single mask bit in the logic of
1562 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1563 kludge to work properly if AES128 is available and AES256 isn't.
1566 *) Expand security boundary to match 1.1.1 module.
1569 *) Remove redundant features: hash file source, editing of test vectors
1570 modify fipsld to use external fips_premain.c signature.
1573 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
1574 run algorithm test programs.
1577 *) Make algorithm test programs more tolerant of whitespace.
1580 *) Have SSL/TLS server implementation tolerate "mismatched" record
1581 protocol version while receiving ClientHello even if the
1582 ClientHello is fragmented. (The server can't insist on the
1583 particular protocol version it has chosen before the ServerHello
1584 message has informed the client about his choice.)
1587 *) Load error codes if they are not already present instead of using a
1588 static variable. This allows them to be cleanly unloaded and reloaded.
1591 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
1593 *) Introduce limits to prevent malicious keys being able to
1594 cause a denial of service. (CVE-2006-2940)
1595 [Steve Henson, Bodo Moeller]
1597 *) Fix ASN.1 parsing of certain invalid structures that can result
1598 in a denial of service. (CVE-2006-2937) [Steve Henson]
1600 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1601 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1603 *) Fix SSL client code which could crash if connecting to a
1604 malicious SSLv2 server. (CVE-2006-4343)
1605 [Tavis Ormandy and Will Drewry, Google Security Team]
1607 *) Change ciphersuite string processing so that an explicit
1608 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
1609 will no longer include "AES128-SHA"), and any other similar
1610 ciphersuite (same bitmap) from *other* protocol versions (so that
1611 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
1612 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
1613 changes from 0.9.8b and 0.9.8d.
1616 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
1618 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1619 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1621 *) Change the Unix randomness entropy gathering to use poll() when
1622 possible instead of select(), since the latter has some
1623 undesirable limitations.
1624 [Darryl Miles via Richard Levitte and Bodo Moeller]
1626 *) Disable rogue ciphersuites:
1628 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1629 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1630 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1632 The latter two were purportedly from
1633 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1636 Also deactive the remaining ciphersuites from
1637 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1638 unofficial, and the ID has long expired.
1641 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1642 dual-core machines) and other potential thread-safety issues.
1645 Changes between 0.9.7i and 0.9.7j [04 May 2006]
1647 *) Adapt fipsld and the build system to link against the validated FIPS
1648 module in FIPS mode.
1651 *) Fixes for VC++ 2005 build under Windows.
1654 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
1655 from a Windows bash shell such as MSYS. It is autodetected from the
1656 "config" script when run from a VC++ environment. Modify standard VC++
1657 build to use fipscanister.o from the GNU make build.
1660 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
1662 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
1663 The value now differs depending on if you build for FIPS or not.
1664 BEWARE! A program linked with a shared FIPSed libcrypto can't be
1665 safely run with a non-FIPSed libcrypto, as it may crash because of
1666 the difference induced by this change.
1669 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
1671 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1672 (part of SSL_OP_ALL). This option used to disable the
1673 countermeasure against man-in-the-middle protocol-version
1674 rollback in the SSL 2.0 server implementation, which is a bad
1675 idea. (CVE-2005-2969)
1677 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1678 for Information Security, National Institute of Advanced Industrial
1679 Science and Technology [AIST], Japan)]
1681 *) Minimal support for X9.31 signatures and PSS padding modes. This is
1682 mainly for FIPS compliance and not fully integrated at this stage.
1685 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
1686 the exponentiation using a fixed-length exponent. (Otherwise,
1687 the information leaked through timing could expose the secret key
1688 after many signatures; cf. Bleichenbacher's attack on DSA with
1692 *) Make a new fixed-window mod_exp implementation the default for
1693 RSA, DSA, and DH private-key operations so that the sequence of
1694 squares and multiplies and the memory access pattern are
1695 independent of the particular secret key. This will mitigate
1696 cache-timing and potential related attacks.
1698 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
1699 and this is automatically used by BN_mod_exp_mont() if the new flag
1700 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
1701 will use this BN flag for private exponents unless the flag
1702 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
1703 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
1705 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
1707 *) Change the client implementation for SSLv23_method() and
1708 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
1709 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
1710 (Previously, the SSL 2.0 backwards compatible Client Hello
1711 message format would be used even with SSL_OP_NO_SSLv2.)
1714 *) Add support for smime-type MIME parameter in S/MIME messages which some
1718 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
1719 a threadsafe manner. Modify rsa code to use new function and add calls
1720 to dsa and dh code (which had race conditions before).
1723 *) Include the fixed error library code in the C error file definitions
1724 instead of fixing them up at runtime. This keeps the error code
1725 structures constant.
1728 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
1730 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
1733 *) Fixes for newer kerberos headers. NB: the casts are needed because
1734 the 'length' field is signed on one version and unsigned on another
1735 with no (?) obvious way to tell the difference, without these VC++
1736 complains. Also the "definition" of FAR (blank) is no longer included
1737 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
1738 some needed definitions.
1741 *) Undo Cygwin change.
1744 *) Added support for proxy certificates according to RFC 3820.
1745 Because they may be a security thread to unaware applications,
1746 they must be explicitely allowed in run-time. See
1747 docs/HOWTO/proxy_certificates.txt for further information.
1750 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
1752 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
1753 server and client random values. Previously
1754 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
1755 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
1757 This change has negligible security impact because:
1759 1. Server and client random values still have 24 bytes of pseudo random
1762 2. Server and client random values are sent in the clear in the initial
1765 3. The master secret is derived using the premaster secret (48 bytes in
1766 size for static RSA ciphersuites) as well as client server and random
1769 The OpenSSL team would like to thank the UK NISCC for bringing this issue
1772 [Stephen Henson, reported by UK NISCC]
1774 *) Use Windows randomness collection on Cygwin.
1777 *) Fix hang in EGD/PRNGD query when communication socket is closed
1778 prematurely by EGD/PRNGD.
1779 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
1781 *) Prompt for pass phrases when appropriate for PKCS12 input format.
1784 *) Back-port of selected performance improvements from development
1785 branch, as well as improved support for PowerPC platforms.
1788 *) Add lots of checks for memory allocation failure, error codes to indicate
1789 failure and freeing up memory if a failure occurs.
1790 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
1792 *) Add new -passin argument to dgst.
1795 *) Perform some character comparisons of different types in X509_NAME_cmp:
1796 this is needed for some certificates that reencode DNs into UTF8Strings
1797 (in violation of RFC3280) and can't or wont issue name rollover
1801 *) Make an explicit check during certificate validation to see that
1802 the CA setting in each certificate on the chain is correct. As a
1803 side effect always do the following basic checks on extensions,
1804 not just when there's an associated purpose to the check:
1806 - if there is an unhandled critical extension (unless the user
1807 has chosen to ignore this fault)
1808 - if the path length has been exceeded (if one is set at all)
1809 - that certain extensions fit the associated purpose (if one has
1813 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
1815 *) Avoid a race condition when CRLs are checked in a multi threaded
1816 environment. This would happen due to the reordering of the revoked
1817 entries during signature checking and serial number lookup. Now the
1818 encoding is cached and the serial number sort performed under a lock.
1819 Add new STACK function sk_is_sorted().
1822 *) Add Delta CRL to the extension code.
1825 *) Various fixes to s3_pkt.c so alerts are sent properly.
1826 [David Holmes <d.holmes@f5.com>]
1828 *) Reduce the chances of duplicate issuer name and serial numbers (in
1829 violation of RFC3280) using the OpenSSL certificate creation utilities.
1830 This is done by creating a random 64 bit value for the initial serial
1831 number when a serial number file is created or when a self signed
1832 certificate is created using 'openssl req -x509'. The initial serial
1833 number file is created using 'openssl x509 -next_serial' in CA.pl
1834 rather than being initialized to 1.
1837 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
1839 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
1840 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
1841 [Joe Orton, Steve Henson]
1843 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
1845 [Joe Orton, Steve Henson]
1847 *) Make it possible to have multiple active certificates with the same
1848 subject in the CA index file. This is done only if the keyword
1849 'unique_subject' is set to 'no' in the main CA section (default
1850 if 'CA_default') of the configuration file. The value is saved
1851 with the database itself in a separate index attribute file,
1852 named like the index file with '.attr' appended to the name.
1855 *) X509 verify fixes. Disable broken certificate workarounds when
1856 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
1857 keyUsage extension present. Don't accept CRLs with unhandled critical
1858 extensions: since verify currently doesn't process CRL extensions this
1859 rejects a CRL with *any* critical extensions. Add new verify error codes
1863 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
1864 A clarification of RFC2560 will require the use of OCTET STRINGs and
1865 some implementations cannot handle the current raw format. Since OpenSSL
1866 copies and compares OCSP nonces as opaque blobs without any attempt at
1867 parsing them this should not create any compatibility issues.
1870 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
1871 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
1872 this HMAC (and other) operations are several times slower than OpenSSL
1876 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
1877 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1879 *) Use the correct content when signing type "other".
1882 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
1884 *) Fix various bugs revealed by running the NISCC test suite:
1886 Stop out of bounds reads in the ASN1 code when presented with
1887 invalid tags (CVE-2003-0543 and CVE-2003-0544).
1889 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
1891 If verify callback ignores invalid public key errors don't try to check
1892 certificate signature with the NULL public key.
1896 *) New -ignore_err option in ocsp application to stop the server
1897 exiting on the first error in a request.
1900 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
1901 if the server requested one: as stated in TLS 1.0 and SSL 3.0
1905 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
1906 extra data after the compression methods not only for TLS 1.0
1907 but also for SSL 3.0 (as required by the specification).
1908 [Bodo Moeller; problem pointed out by Matthias Loepfe]
1910 *) Change X509_certificate_type() to mark the key as exported/exportable
1911 when it's 512 *bits* long, not 512 bytes.
1914 *) Change AES_cbc_encrypt() so it outputs exact multiple of
1915 blocks during encryption.
1918 *) Various fixes to base64 BIO and non blocking I/O. On write
1919 flushes were not handled properly if the BIO retried. On read
1920 data was not being buffered properly and had various logic bugs.
1921 This also affects blocking I/O when the data being decoded is a
1925 *) Various S/MIME bugfixes and compatibility changes:
1926 output correct application/pkcs7 MIME type if
1927 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
1928 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
1929 of files as .eml work). Correctly handle very long lines in MIME
1933 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
1935 *) Countermeasure against the Klima-Pokorny-Rosa extension of
1936 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
1937 a protocol version number mismatch like a decryption error
1938 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
1941 *) Turn on RSA blinding by default in the default implementation
1942 to avoid a timing attack. Applications that don't want it can call
1943 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
1944 They would be ill-advised to do so in most cases.
1945 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
1947 *) Change RSA blinding code so that it works when the PRNG is not
1948 seeded (in this case, the secret RSA exponent is abused as
1949 an unpredictable seed -- if it is not unpredictable, there
1950 is no point in blinding anyway). Make RSA blinding thread-safe
1951 by remembering the creator's thread ID in rsa->blinding and
1952 having all other threads use local one-time blinding factors
1953 (this requires more computation than sharing rsa->blinding, but
1954 avoids excessive locking; and if an RSA object is not shared
1955 between threads, blinding will still be very fast).
1958 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
1959 ENGINE as defaults for all supported algorithms irrespective of
1960 the 'flags' parameter. 'flags' is now honoured, so applications
1961 should make sure they are passing it correctly.
1964 *) Target "mingw" now allows native Windows code to be generated in
1965 the Cygwin environment as well as with the MinGW compiler.
1968 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
1970 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
1971 via timing by performing a MAC computation even if incorrrect
1972 block cipher padding has been found. This is a countermeasure
1973 against active attacks where the attacker has to distinguish
1974 between bad padding and a MAC verification error. (CVE-2003-0078)
1976 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
1977 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
1978 Martin Vuagnoux (EPFL, Ilion)]
1980 *) Make the no-err option work as intended. The intention with no-err
1981 is not to have the whole error stack handling routines removed from
1982 libcrypto, it's only intended to remove all the function name and
1983 reason texts, thereby removing some of the footprint that may not
1984 be interesting if those errors aren't displayed anyway.
1986 NOTE: it's still possible for any application or module to have it's
1987 own set of error texts inserted. The routines are there, just not
1988 used by default when no-err is given.
1991 *) Add support for FreeBSD on IA64.
1992 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
1994 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
1995 Kerberos function mit_des_cbc_cksum(). Before this change,
1996 the value returned by DES_cbc_cksum() was like the one from
1997 mit_des_cbc_cksum(), except the bytes were swapped.
1998 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
2000 *) Allow an application to disable the automatic SSL chain building.
2001 Before this a rather primitive chain build was always performed in
2002 ssl3_output_cert_chain(): an application had no way to send the
2003 correct chain if the automatic operation produced an incorrect result.
2005 Now the chain builder is disabled if either:
2007 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
2009 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
2011 The reasoning behind this is that an application would not want the
2012 auto chain building to take place if extra chain certificates are
2013 present and it might also want a means of sending no additional
2014 certificates (for example the chain has two certificates and the
2018 *) Add the possibility to build without the ENGINE framework.
2019 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2021 *) Under Win32 gmtime() can return NULL: check return value in
2022 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
2025 *) DSA routines: under certain error conditions uninitialized BN objects
2026 could be freed. Solution: make sure initialization is performed early
2027 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
2028 Nils Larsch <nla@trustcenter.de> via PR#459)
2031 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
2032 checked on reconnect on the client side, therefore session resumption
2033 could still fail with a "ssl session id is different" error. This
2034 behaviour is masked when SSL_OP_ALL is used due to
2035 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
2036 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2037 followup to PR #377.
2040 *) IA-32 assembler support enhancements: unified ELF targets, support
2041 for SCO/Caldera platforms, fix for Cygwin shared build.
2044 *) Add support for FreeBSD on sparc64. As a consequence, support for
2045 FreeBSD on non-x86 processors is separate from x86 processors on
2046 the config script, much like the NetBSD support.
2047 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
2049 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
2051 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
2054 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
2055 code (06) was taken as the first octet of the session ID and the last
2056 octet was ignored consequently. As a result SSLv2 client side session
2057 caching could not have worked due to the session ID mismatch between
2059 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2063 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
2064 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
2068 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
2069 seems that in spite of existing for more than a year, many application
2070 author have done nothing to provide the necessary callbacks, which
2071 means that this particular engine will not work properly anywhere.
2072 This is a very unfortunate situation which forces us, in the name
2073 of usability, to give the hw_ncipher.c a static lock, which is part
2075 NOTE: This is for the 0.9.7 series ONLY. This hack will never
2076 appear in 0.9.8 or later. We EXPECT application authors to have
2077 dealt properly with this when 0.9.8 is released (unless we actually
2078 make such changes in the libcrypto locking code that changes will
2079 have to be made anyway).
2082 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
2083 octets have been read, EOF or an error occurs. Without this change
2084 some truncated ASN1 structures will not produce an error.
2087 *) Disable Heimdal support, since it hasn't been fully implemented.
2088 Still give the possibility to force the use of Heimdal, but with
2089 warnings and a request that patches get sent to openssl-dev.
2092 *) Add the VC-CE target, introduce the WINCE sysname, and add
2093 INSTALL.WCE and appropriate conditionals to make it build.
2094 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2096 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
2097 cygssl-x.y.z.dll, where x, y and z are the major, minor and
2098 edit numbers of the version.
2099 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
2101 *) Introduce safe string copy and catenation functions
2102 (BUF_strlcpy() and BUF_strlcat()).
2103 [Ben Laurie (CHATS) and Richard Levitte]
2105 *) Avoid using fixed-size buffers for one-line DNs.
2106 [Ben Laurie (CHATS)]
2108 *) Add BUF_MEM_grow_clean() to avoid information leakage when
2109 resizing buffers containing secrets, and use where appropriate.
2110 [Ben Laurie (CHATS)]
2112 *) Avoid using fixed size buffers for configuration file location.
2113 [Ben Laurie (CHATS)]
2115 *) Avoid filename truncation for various CA files.
2116 [Ben Laurie (CHATS)]
2118 *) Use sizeof in preference to magic numbers.
2119 [Ben Laurie (CHATS)]
2121 *) Avoid filename truncation in cert requests.
2122 [Ben Laurie (CHATS)]
2124 *) Add assertions to check for (supposedly impossible) buffer
2126 [Ben Laurie (CHATS)]
2128 *) Don't cache truncated DNS entries in the local cache (this could
2129 potentially lead to a spoofing attack).
2130 [Ben Laurie (CHATS)]
2132 *) Fix various buffers to be large enough for hex/decimal
2133 representations in a platform independent manner.
2134 [Ben Laurie (CHATS)]
2136 *) Add CRYPTO_realloc_clean() to avoid information leakage when
2137 resizing buffers containing secrets, and use where appropriate.
2138 [Ben Laurie (CHATS)]
2140 *) Add BIO_indent() to avoid much slightly worrying code to do
2142 [Ben Laurie (CHATS)]
2144 *) Convert sprintf()/BIO_puts() to BIO_printf().
2145 [Ben Laurie (CHATS)]
2147 *) buffer_gets() could terminate with the buffer only half
2149 [Ben Laurie (CHATS)]
2151 *) Add assertions to prevent user-supplied crypto functions from
2152 overflowing internal buffers by having large block sizes, etc.
2153 [Ben Laurie (CHATS)]
2155 *) New OPENSSL_assert() macro (similar to assert(), but enabled
2157 [Ben Laurie (CHATS)]
2159 *) Eliminate unused copy of key in RC4.
2160 [Ben Laurie (CHATS)]
2162 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
2163 [Ben Laurie (CHATS)]
2165 *) Fix off-by-one error in EGD path.
2166 [Ben Laurie (CHATS)]
2168 *) If RANDFILE path is too long, ignore instead of truncating.
2169 [Ben Laurie (CHATS)]
2171 *) Eliminate unused and incorrectly sized X.509 structure
2173 [Ben Laurie (CHATS)]
2175 *) Eliminate unused and dangerous function knumber().
2176 [Ben Laurie (CHATS)]
2178 *) Eliminate unused and dangerous structure, KSSL_ERR.
2179 [Ben Laurie (CHATS)]
2181 *) Protect against overlong session ID context length in an encoded
2182 session object. Since these are local, this does not appear to be
2184 [Ben Laurie (CHATS)]
2186 *) Change from security patch (see 0.9.6e below) that did not affect
2187 the 0.9.6 release series:
2189 Remote buffer overflow in SSL3 protocol - an attacker could
2190 supply an oversized master key in Kerberos-enabled versions.
2192 [Ben Laurie (CHATS)]
2194 *) Change the SSL kerb5 codes to match RFC 2712.
2197 *) Make -nameopt work fully for req and add -reqopt switch.
2198 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
2200 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
2201 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
2203 *) Make sure tests can be performed even if the corresponding algorithms
2204 have been removed entirely. This was also the last step to make
2205 OpenSSL compilable with DJGPP under all reasonable conditions.
2206 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
2208 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
2209 to allow version independent disabling of normally unselected ciphers,
2210 which may be activated as a side-effect of selecting a single cipher.
2212 (E.g., cipher list string "RSA" enables ciphersuites that are left
2213 out of "ALL" because they do not provide symmetric encryption.
2214 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
2215 [Lutz Jaenicke, Bodo Moeller]
2217 *) Add appropriate support for separate platform-dependent build
2218 directories. The recommended way to make a platform-dependent
2219 build directory is the following (tested on Linux), maybe with
2222 # Place yourself outside of the OpenSSL source tree. In
2223 # this example, the environment variable OPENSSL_SOURCE
2224 # is assumed to contain the absolute OpenSSL source directory.
2225 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
2226 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
2227 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
2228 mkdir -p `dirname $F`
2229 ln -s $OPENSSL_SOURCE/$F $F
2232 To be absolutely sure not to disturb the source tree, a "make clean"
2233 is a good thing. If it isn't successfull, don't worry about it,
2234 it probably means the source directory is very clean.
2237 *) Make sure any ENGINE control commands make local copies of string
2238 pointers passed to them whenever necessary. Otherwise it is possible
2239 the caller may have overwritten (or deallocated) the original string
2240 data when a later ENGINE operation tries to use the stored values.
2241 [Götz Babin-Ebell <babinebell@trustcenter.de>]
2243 *) Improve diagnostics in file reading and command-line digests.
2244 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
2246 *) Add AES modes CFB and OFB to the object database. Correct an
2247 error in AES-CFB decryption.
2250 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
2251 allows existing EVP_CIPHER_CTX structures to be reused after
2252 calling EVP_*Final(). This behaviour is used by encryption
2253 BIOs and some applications. This has the side effect that
2254 applications must explicitly clean up cipher contexts with
2255 EVP_CIPHER_CTX_cleanup() or they will leak memory.
2258 *) Check the values of dna and dnb in bn_mul_recursive before calling
2259 bn_mul_comba (a non zero value means the a or b arrays do not contain
2260 n2 elements) and fallback to bn_mul_normal if either is not zero.
2263 *) Fix escaping of non-ASCII characters when using the -subj option
2264 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
2267 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
2268 form for "surname", serialNumber has no short form.
2269 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
2270 therefore remove "mail" short name for "internet 7".
2271 The OID for unique identifiers in X509 certificates is
2272 x500UniqueIdentifier, not uniqueIdentifier.
2273 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
2276 *) Add an "init" command to the ENGINE config module and auto initialize
2277 ENGINEs. Without any "init" command the ENGINE will be initialized
2278 after all ctrl commands have been executed on it. If init=1 the
2279 ENGINE is initailized at that point (ctrls before that point are run
2280 on the uninitialized ENGINE and after on the initialized one). If
2281 init=0 then the ENGINE will not be iniatialized at all.
2284 *) Fix the 'app_verify_callback' interface so that the user-defined
2285 argument is actually passed to the callback: In the
2286 SSL_CTX_set_cert_verify_callback() prototype, the callback
2287 declaration has been changed from
2290 int (*cb)(X509_STORE_CTX *,void *);
2291 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
2292 i=s->ctx->app_verify_callback(&ctx)
2293 has been changed into
2294 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
2296 To update applications using SSL_CTX_set_cert_verify_callback(),
2297 a dummy argument can be added to their callback functions.
2298 [D. K. Smetters <smetters@parc.xerox.com>]
2300 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
2301 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
2303 *) Add and OPENSSL_LOAD_CONF define which will cause
2304 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
2305 This allows older applications to transparently support certain
2306 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
2307 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
2308 load the config file and OPENSSL_add_all_algorithms_conf() which will
2309 always load it have also been added.
2312 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
2313 Adjust NIDs and EVP layer.
2314 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2316 *) Config modules support in openssl utility.
2318 Most commands now load modules from the config file,
2319 though in a few (such as version) this isn't done
2320 because it couldn't be used for anything.
2322 In the case of ca and req the config file used is
2323 the same as the utility itself: that is the -config
2324 command line option can be used to specify an
2328 *) Move default behaviour from OPENSSL_config(). If appname is NULL
2329 use "openssl_conf" if filename is NULL use default openssl config file.
2332 *) Add an argument to OPENSSL_config() to allow the use of an alternative
2333 config section name. Add a new flag to tolerate a missing config file
2334 and move code to CONF_modules_load_file().
2337 *) Support for crypto accelerator cards from Accelerated Encryption
2338 Processing, www.aep.ie. (Use engine 'aep')
2339 The support was copied from 0.9.6c [engine] and adapted/corrected
2340 to work with the new engine framework.
2341 [AEP Inc. and Richard Levitte]
2343 *) Support for SureWare crypto accelerator cards from Baltimore
2344 Technologies. (Use engine 'sureware')
2345 The support was copied from 0.9.6c [engine] and adapted
2346 to work with the new engine framework.
2349 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
2350 make the newer ENGINE framework commands for the CHIL engine work.
2351 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
2353 *) Make it possible to produce shared libraries on ReliantUNIX.
2354 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
2356 *) Add the configuration target debug-linux-ppro.
2357 Make 'openssl rsa' use the general key loading routines
2358 implemented in apps.c, and make those routines able to
2359 handle the key format FORMAT_NETSCAPE and the variant
2361 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2363 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
2364 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2366 *) Add -keyform to rsautl, and document -engine.
2367 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
2369 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
2370 BIO_R_NO_SUCH_FILE error code rather than the generic
2371 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
2374 *) Add new functions
2376 ERR_peek_last_error_line
2377 ERR_peek_last_error_line_data.
2378 These are similar to
2381 ERR_peek_error_line_data,
2382 but report on the latest error recorded rather than the first one
2383 still in the error queue.
2384 [Ben Laurie, Bodo Moeller]
2386 *) default_algorithms option in ENGINE config module. This allows things
2388 default_algorithms = ALL
2389 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
2392 *) Prelminary ENGINE config module.
2395 *) New experimental application configuration code.
2398 *) Change the AES code to follow the same name structure as all other
2399 symmetric ciphers, and behave the same way. Move everything to
2400 the directory crypto/aes, thereby obsoleting crypto/rijndael.
2401 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2403 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
2404 [Ben Laurie and Theo de Raadt]
2406 *) Add option to output public keys in req command.
2407 [Massimiliano Pala madwolf@openca.org]
2409 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
2410 (up to about 10% better than before for P-192 and P-224).
2413 *) New functions/macros
2415 SSL_CTX_set_msg_callback(ctx, cb)
2416 SSL_CTX_set_msg_callback_arg(ctx, arg)
2417 SSL_set_msg_callback(ssl, cb)
2418 SSL_set_msg_callback_arg(ssl, arg)
2420 to request calling a callback function
2422 void cb(int write_p, int version, int content_type,
2423 const void *buf, size_t len, SSL *ssl, void *arg)
2425 whenever a protocol message has been completely received
2426 (write_p == 0) or sent (write_p == 1). Here 'version' is the
2427 protocol version according to which the SSL library interprets
2428 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
2429 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
2430 the content type as defined in the SSL 3.0/TLS 1.0 protocol
2431 specification (change_cipher_spec(20), alert(21), handshake(22)).
2432 'buf' and 'len' point to the actual message, 'ssl' to the
2433 SSL object, and 'arg' is the application-defined value set by
2434 SSL[_CTX]_set_msg_callback_arg().
2436 'openssl s_client' and 'openssl s_server' have new '-msg' options
2437 to enable a callback that displays all protocol messages.
2440 *) Change the shared library support so shared libraries are built as
2441 soon as the corresponding static library is finished, and thereby get
2442 openssl and the test programs linked against the shared library.
2443 This still only happens when the keyword "shard" has been given to
2444 the configuration scripts.
2446 NOTE: shared library support is still an experimental thing, and
2447 backward binary compatibility is still not guaranteed.
2448 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
2450 *) Add support for Subject Information Access extension.
2451 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2453 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
2454 additional bytes when new memory had to be allocated, not just
2455 when reusing an existing buffer.
2458 *) New command line and configuration option 'utf8' for the req command.
2459 This allows field values to be specified as UTF8 strings.
2462 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
2463 runs for the former and machine-readable output for the latter.
2466 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
2467 of the e-mail address in the DN (i.e., it will go into a certificate
2468 extension only). The new configuration file option 'email_in_dn = no'
2469 has the same effect.
2470 [Massimiliano Pala madwolf@openca.org]
2472 *) Change all functions with names starting with des_ to be starting
2473 with DES_ instead. Add wrappers that are compatible with libdes,
2474 but are named _ossl_old_des_*. Finally, add macros that map the
2475 des_* symbols to the corresponding _ossl_old_des_* if libdes
2476 compatibility is desired. If OpenSSL 0.9.6c compatibility is
2477 desired, the des_* symbols will be mapped to DES_*, with one
2480 Since we provide two compatibility mappings, the user needs to
2481 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
2482 compatibility is desired. The default (i.e., when that macro
2483 isn't defined) is OpenSSL 0.9.6c compatibility.
2485 There are also macros that enable and disable the support of old
2486 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
2487 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
2488 are defined, the default will apply: to support the old des routines.
2490 In either case, one must include openssl/des.h to get the correct
2491 definitions. Do not try to just include openssl/des_old.h, that
2494 NOTE: This is a major break of an old API into a new one. Software
2495 authors are encouraged to switch to the DES_ style functions. Some
2496 time in the future, des_old.h and the libdes compatibility functions
2497 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
2498 default), and then completely removed.
2501 *) Test for certificates which contain unsupported critical extensions.
2502 If such a certificate is found during a verify operation it is
2503 rejected by default: this behaviour can be overridden by either
2504 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
2505 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
2506 X509_supported_extension() has also been added which returns 1 if a
2507 particular extension is supported.
2510 *) Modify the behaviour of EVP cipher functions in similar way to digests
2511 to retain compatibility with existing code.
2514 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
2515 compatibility with existing code. In particular the 'ctx' parameter does
2516 not have to be to be initialized before the call to EVP_DigestInit() and
2517 it is tidied up after a call to EVP_DigestFinal(). New function
2518 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
2519 EVP_MD_CTX_copy() changed to not require the destination to be
2520 initialized valid and new function EVP_MD_CTX_copy_ex() added which
2521 requires the destination to be valid.
2523 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
2524 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
2527 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
2528 so that complete 'Handshake' protocol structures are kept in memory
2529 instead of overwriting 'msg_type' and 'length' with 'body' data.
2532 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
2533 [Massimo Santin via Richard Levitte]
2535 *) Major restructuring to the underlying ENGINE code. This includes
2536 reduction of linker bloat, separation of pure "ENGINE" manipulation
2537 (initialisation, etc) from functionality dealing with implementations
2538 of specific crypto iterfaces. This change also introduces integrated
2539 support for symmetric ciphers and digest implementations - so ENGINEs
2540 can now accelerate these by providing EVP_CIPHER and EVP_MD
2541 implementations of their own. This is detailed in crypto/engine/README
2542 as it couldn't be adequately described here. However, there are a few
2543 API changes worth noting - some RSA, DSA, DH, and RAND functions that
2544 were changed in the original introduction of ENGINE code have now
2545 reverted back - the hooking from this code to ENGINE is now a good
2546 deal more passive and at run-time, operations deal directly with
2547 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
2548 dereferencing through an ENGINE pointer any more. Also, the ENGINE
2549 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
2550 they were not being used by the framework as there is no concept of a
2551 BIGNUM_METHOD and they could not be generalised to the new
2552 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
2553 ENGINE_cpy() has been removed as it cannot be consistently defined in
2557 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
2560 *) Change mkdef.pl to sort symbols that get the same entry number,
2561 and make sure the automatically generated functions ERR_load_*
2562 become part of libeay.num as well.
2565 *) New function SSL_renegotiate_pending(). This returns true once
2566 renegotiation has been requested (either SSL_renegotiate() call
2567 or HelloRequest/ClientHello receveived from the peer) and becomes
2568 false once a handshake has been completed.
2569 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
2570 sends a HelloRequest, but does not ensure that a handshake takes
2571 place. SSL_renegotiate_pending() is useful for checking if the
2572 client has followed the request.)
2575 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
2576 By default, clients may request session resumption even during
2577 renegotiation (if session ID contexts permit); with this option,
2578 session resumption is possible only in the first handshake.
2580 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
2581 more bits available for options that should not be part of
2582 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
2585 *) Add some demos for certificate and certificate request creation.
2588 *) Make maximum certificate chain size accepted from the peer application
2589 settable (SSL*_get/set_max_cert_list()), as proposed by
2590 "Douglas E. Engert" <deengert@anl.gov>.
2593 *) Add support for shared libraries for Unixware-7
2594 (Boyd Lynn Gerber <gerberb@zenez.com>).
2597 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
2598 be done prior to destruction. Use this to unload error strings from
2599 ENGINEs that load their own error strings. NB: This adds two new API
2600 functions to "get" and "set" this destroy handler in an ENGINE.
2603 *) Alter all existing ENGINE implementations (except "openssl" and
2604 "openbsd") to dynamically instantiate their own error strings. This
2605 makes them more flexible to be built both as statically-linked ENGINEs
2606 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
2607 Also, add stub code to each that makes building them as self-contained
2608 shared-libraries easier (see README.ENGINE).
2611 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
2612 implementations into applications that are completely implemented in
2613 self-contained shared-libraries. The "dynamic" ENGINE exposes control
2614 commands that can be used to configure what shared-library to load and
2615 to control aspects of the way it is handled. Also, made an update to
2616 the README.ENGINE file that brings its information up-to-date and
2617 provides some information and instructions on the "dynamic" ENGINE
2618 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
2621 *) Make it possible to unload ranges of ERR strings with a new
2622 "ERR_unload_strings" function.
2625 *) Add a copy() function to EVP_MD.
2628 *) Make EVP_MD routines take a context pointer instead of just the
2629 md_data void pointer.
2632 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
2633 that the digest can only process a single chunk of data
2634 (typically because it is provided by a piece of
2635 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
2636 is only going to provide a single chunk of data, and hence the
2637 framework needn't accumulate the data for oneshot drivers.
2640 *) As with "ERR", make it possible to replace the underlying "ex_data"
2641 functions. This change also alters the storage and management of global
2642 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
2643 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
2644 index counters. The API functions that use this state have been changed
2645 to take a "class_index" rather than pointers to the class's local STACK
2646 and counter, and there is now an API function to dynamically create new
2647 classes. This centralisation allows us to (a) plug a lot of the
2648 thread-safety problems that existed, and (b) makes it possible to clean
2649 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
2650 such data would previously have always leaked in application code and
2651 workarounds were in place to make the memory debugging turn a blind eye
2652 to it. Application code that doesn't use this new function will still
2653 leak as before, but their memory debugging output will announce it now
2654 rather than letting it slide.
2656 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
2657 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
2658 has a return value to indicate success or failure.
2661 *) Make it possible to replace the underlying "ERR" functions such that the
2662 global state (2 LHASH tables and 2 locks) is only used by the "default"
2663 implementation. This change also adds two functions to "get" and "set"
2664 the implementation prior to it being automatically set the first time
2665 any other ERR function takes place. Ie. an application can call "get",
2666 pass the return value to a module it has just loaded, and that module
2667 can call its own "set" function using that value. This means the
2668 module's "ERR" operations will use (and modify) the error state in the
2669 application and not in its own statically linked copy of OpenSSL code.
2672 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
2673 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
2674 the operation, and provides a more encapsulated way for external code
2675 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
2676 to use these functions rather than manually incrementing the counts.
2678 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
2681 *) Add EVP test program.
2684 *) Add symmetric cipher support to ENGINE. Expect the API to change!
2687 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
2688 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
2689 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
2690 These allow a CRL to be built without having to access X509_CRL fields
2691 directly. Modify 'ca' application to use new functions.
2694 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
2695 bug workarounds. Rollback attack detection is a security feature.
2696 The problem will only arise on OpenSSL servers when TLSv1 is not
2697 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
2698 Software authors not wanting to support TLSv1 will have special reasons
2699 for their choice and can explicitly enable this option.
2700 [Bodo Moeller, Lutz Jaenicke]
2702 *) Rationalise EVP so it can be extended: don't include a union of
2703 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
2704 (similar to those existing for EVP_CIPHER_CTX).
2709 EVP_MD_CTX_init(&md); /* new function call */
2710 EVP_DigestInit(&md, EVP_sha1());
2711 EVP_DigestUpdate(&md, in, len);
2712 EVP_DigestFinal(&md, out, NULL);
2713 EVP_MD_CTX_cleanup(&md); /* new function call */
2717 *) Make DES key schedule conform to the usual scheme, as well as
2718 correcting its structure. This means that calls to DES functions
2719 now have to pass a pointer to a des_key_schedule instead of a
2720 plain des_key_schedule (which was actually always a pointer
2723 des_key_schedule ks;
2725 des_set_key_checked(..., &ks);
2726 des_ncbc_encrypt(..., &ks, ...);
2728 (Note that a later change renames 'des_...' into 'DES_...'.)
2731 *) Initial reduction of linker bloat: the use of some functions, such as
2732 PEM causes large amounts of unused functions to be linked in due to
2733 poor organisation. For example pem_all.c contains every PEM function
2734 which has a knock on effect of linking in large amounts of (unused)
2735 ASN1 code. Grouping together similar functions and splitting unrelated
2736 functions prevents this.
2739 *) Cleanup of EVP macros.
2742 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
2743 correct _ecb suffix.
2746 *) Add initial OCSP responder support to ocsp application. The
2747 revocation information is handled using the text based index
2748 use by the ca application. The responder can either handle
2749 requests generated internally, supplied in files (for example
2750 via a CGI script) or using an internal minimal server.
2753 *) Add configuration choices to get zlib compression for TLS.
2756 *) Changes to Kerberos SSL for RFC 2712 compliance:
2757 1. Implemented real KerberosWrapper, instead of just using
2758 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
2759 2. Implemented optional authenticator field of KerberosWrapper.
2761 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
2762 and authenticator structs; see crypto/krb5/.
2764 Generalized Kerberos calls to support multiple Kerberos libraries.
2765 [Vern Staats <staatsvr@asc.hpc.mil>,
2766 Jeffrey Altman <jaltman@columbia.edu>
2767 via Richard Levitte]
2769 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
2770 already does with RSA. testdsa.h now has 'priv_key/pub_key'
2771 values for each of the key sizes rather than having just
2772 parameters (and 'speed' generating keys each time).
2775 *) Speed up EVP routines.
2778 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
2779 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
2780 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
2781 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
2783 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
2784 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
2785 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
2788 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
2790 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
2793 *) Added the OS2-EMX target.
2794 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
2796 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
2797 to support NCONF routines in extension code. New function CONF_set_nconf()
2798 to allow functions which take an NCONF to also handle the old LHASH
2799 structure: this means that the old CONF compatible routines can be
2800 retained (in particular wrt extensions) without having to duplicate the
2801 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
2804 *) Enhance the general user interface with mechanisms for inner control
2805 and with possibilities to have yes/no kind of prompts.
2808 *) Change all calls to low level digest routines in the library and
2809 applications to use EVP. Add missing calls to HMAC_cleanup() and
2810 don't assume HMAC_CTX can be copied using memcpy().
2811 [Verdon Walker <VWalker@novell.com>, Steve Henson]
2813 *) Add the possibility to control engines through control names but with
2814 arbitrary arguments instead of just a string.
2815 Change the key loaders to take a UI_METHOD instead of a callback
2816 function pointer. NOTE: this breaks binary compatibility with earlier
2817 versions of OpenSSL [engine].
2818 Adapt the nCipher code for these new conditions and add a card insertion
2822 *) Enhance the general user interface with mechanisms to better support
2823 dialog box interfaces, application-defined prompts, the possibility
2824 to use defaults (for example default passwords from somewhere else)
2825 and interrupts/cancellations.
2828 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
2829 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
2832 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
2833 tidy up some unnecessarily weird code in 'sk_new()').
2834 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
2836 *) Change the key loading routines for ENGINEs to use the same kind
2837 callback (pem_password_cb) as all other routines that need this
2841 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
2842 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
2843 than this minimum value is recommended.
2846 *) New random seeder for OpenVMS, using the system process statistics
2847 that are easily reachable.
2850 *) Windows apparently can't transparently handle global
2851 variables defined in DLLs. Initialisations such as:
2853 const ASN1_ITEM *it = &ASN1_INTEGER_it;
2855 wont compile. This is used by the any applications that need to
2856 declare their own ASN1 modules. This was fixed by adding the option
2857 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
2858 needed for static libraries under Win32.
2861 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
2862 setting of purpose and trust fields. New X509_STORE trust and
2863 purpose functions and tidy up setting in other SSL functions.
2866 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
2867 structure. These are inherited by X509_STORE_CTX when it is
2868 initialised. This allows various defaults to be set in the
2869 X509_STORE structure (such as flags for CRL checking and custom
2870 purpose or trust settings) for functions which only use X509_STORE_CTX
2871 internally such as S/MIME.
2873 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
2874 trust settings if they are not set in X509_STORE. This allows X509_STORE
2875 purposes and trust (in S/MIME for example) to override any set by default.
2877 Add command line options for CRL checking to smime, s_client and s_server
2881 *) Initial CRL based revocation checking. If the CRL checking flag(s)
2882 are set then the CRL is looked up in the X509_STORE structure and
2883 its validity and signature checked, then if the certificate is found
2884 in the CRL the verify fails with a revoked error.
2886 Various new CRL related callbacks added to X509_STORE_CTX structure.
2888 Command line options added to 'verify' application to support this.
2890 This needs some additional work, such as being able to handle multiple
2891 CRLs with different times, extension based lookup (rather than just
2892 by subject name) and ultimately more complete V2 CRL extension
2896 *) Add a general user interface API (crypto/ui/). This is designed
2897 to replace things like des_read_password and friends (backward
2898 compatibility functions using this new API are provided).
2899 The purpose is to remove prompting functions from the DES code
2900 section as well as provide for prompting through dialog boxes in
2901 a window system and the like.
2904 *) Add "ex_data" support to ENGINE so implementations can add state at a
2905 per-structure level rather than having to store it globally.
2908 *) Make it possible for ENGINE structures to be copied when retrieved by
2909 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
2910 This causes the "original" ENGINE structure to act like a template,
2911 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
2912 operational state can be localised to each ENGINE structure, despite the
2913 fact they all share the same "methods". New ENGINE structures returned in
2914 this case have no functional references and the return value is the single
2915 structural reference. This matches the single structural reference returned
2916 by ENGINE_by_id() normally, when it is incremented on the pre-existing
2920 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
2921 needs to match any other type at all we need to manually clear the
2925 *) Changes to the "openssl engine" utility to include;
2926 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
2927 about an ENGINE's available control commands.
2928 - executing control commands from command line arguments using the
2929 '-pre' and '-post' switches. '-post' is only used if '-t' is
2930 specified and the ENGINE is successfully initialised. The syntax for
2931 the individual commands are colon-separated, for example;
2932 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
2935 *) New dynamic control command support for ENGINEs. ENGINEs can now
2936 declare their own commands (numbers), names (strings), descriptions,
2937 and input types for run-time discovery by calling applications. A
2938 subset of these commands are implicitly classed as "executable"
2939 depending on their input type, and only these can be invoked through
2940 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
2941 can be based on user input, config files, etc). The distinction is
2942 that "executable" commands cannot return anything other than a boolean
2943 result and can only support numeric or string input, whereas some
2944 discoverable commands may only be for direct use through
2945 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
2946 pointers, or other custom uses. The "executable" commands are to
2947 support parameterisations of ENGINE behaviour that can be
2948 unambiguously defined by ENGINEs and used consistently across any
2949 OpenSSL-based application. Commands have been added to all the
2950 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
2951 control over shared-library paths without source code alterations.
2954 *) Changed all ENGINE implementations to dynamically allocate their
2955 ENGINEs rather than declaring them statically. Apart from this being
2956 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
2957 this also allows the implementations to compile without using the
2958 internal engine_int.h header.
2961 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
2962 'const' value. Any code that should be able to modify a RAND_METHOD
2963 should already have non-const pointers to it (ie. they should only
2964 modify their own ones).
2967 *) Made a variety of little tweaks to the ENGINE code.
2968 - "atalla" and "ubsec" string definitions were moved from header files
2969 to C code. "nuron" string definitions were placed in variables
2970 rather than hard-coded - allowing parameterisation of these values
2971 later on via ctrl() commands.
2972 - Removed unused "#if 0"'d code.
2973 - Fixed engine list iteration code so it uses ENGINE_free() to release
2974 structural references.
2975 - Constified the RAND_METHOD element of ENGINE structures.
2976 - Constified various get/set functions as appropriate and added
2977 missing functions (including a catch-all ENGINE_cpy that duplicates
2978 all ENGINE values onto a new ENGINE except reference counts/state).
2979 - Removed NULL parameter checks in get/set functions. Setting a method
2980 or function to NULL is a way of cancelling out a previously set
2981 value. Passing a NULL ENGINE parameter is just plain stupid anyway
2982 and doesn't justify the extra error symbols and code.
2983 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
2984 flags from engine_int.h to engine.h.
2985 - Changed prototypes for ENGINE handler functions (init(), finish(),
2986 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
2989 *) Implement binary inversion algorithm for BN_mod_inverse in addition
2990 to the algorithm using long division. The binary algorithm can be
2991 used only if the modulus is odd. On 32-bit systems, it is faster
2992 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
2993 roughly 5-15% for 256-bit moduli), so we use it only for moduli
2994 up to 450 bits. In 64-bit environments, the binary algorithm
2995 appears to be advantageous for much longer moduli; here we use it
2996 for moduli up to 2048 bits.
2999 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
3000 could not support the combine flag in choice fields.
3003 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
3004 extensions from a certificate request to the certificate.
3007 *) Allow multiple 'certopt' and 'nameopt' options to be separated
3008 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
3009 file: this allows the display of the certificate about to be
3010 signed to be customised, to allow certain fields to be included
3011 or excluded and extension details. The old system didn't display
3012 multicharacter strings properly, omitted fields not in the policy
3013 and couldn't display additional details such as extensions.
3016 *) Function EC_POINTs_mul for multiple scalar multiplication
3017 of an arbitrary number of elliptic curve points
3018 \sum scalars[i]*points[i],
3019 optionally including the generator defined for the EC_GROUP:
3020 scalar*generator + \sum scalars[i]*points[i].
3022 EC_POINT_mul is a simple wrapper function for the typical case
3023 that the point list has just one item (besides the optional
3027 *) First EC_METHODs for curves over GF(p):
3029 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
3030 operations and provides various method functions that can also
3031 operate with faster implementations of modular arithmetic.
3033 EC_GFp_mont_method() reuses most functions that are part of
3034 EC_GFp_simple_method, but uses Montgomery arithmetic.
3036 [Bodo Moeller; point addition and point doubling
3037 implementation directly derived from source code provided by
3038 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
3040 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
3041 crypto/ec/ec_lib.c):
3043 Curves are EC_GROUP objects (with an optional group generator)
3044 based on EC_METHODs that are built into the library.
3046 Points are EC_POINT objects based on EC_GROUP objects.
3048 Most of the framework would be able to handle curves over arbitrary
3049 finite fields, but as there are no obvious types for fields other
3050 than GF(p), some functions are limited to that for now.
3053 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
3054 that the file contains a complete HTTP response.
3057 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
3058 change the def and num file printf format specifier from "%-40sXXX"
3059 to "%-39s XXX". The latter will always guarantee a space after the
3060 field while the former will cause them to run together if the field
3061 is 40 of more characters long.
3064 *) Constify the cipher and digest 'method' functions and structures
3065 and modify related functions to take constant EVP_MD and EVP_CIPHER
3069 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
3070 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
3073 *) Modify EVP_Digest*() routines so they now return values. Although the
3074 internal software routines can never fail additional hardware versions
3078 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
3080 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
3081 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
3084 ERR_R_NESTED_ASN1_ERROR
3086 ERR_R_MISSING_ASN1_EOS
3087 were 4 .. 9, conflicting with
3088 ERR_LIB_RSA (= ERR_R_RSA_LIB)
3090 ERR_LIB_PEM (= ERR_R_PEM_LIB).
3091 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
3093 Add new error code 'ERR_R_INTERNAL_ERROR'.
3096 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
3100 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
3101 sets the subject name for a new request or supersedes the
3102 subject name in a given request. Formats that can be parsed are
3103 'CN=Some Name, OU=myOU, C=IT'
3105 'CN=Some Name/OU=myOU/C=IT'.
3107 Add options '-batch' and '-verbose' to 'openssl req'.
3108 [Massimiliano Pala <madwolf@hackmasters.net>]
3110 *) Introduce the possibility to access global variables through
3111 functions on platform were that's the best way to handle exporting
3112 global variables in shared libraries. To enable this functionality,
3113 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
3114 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
3115 is normally done by Configure or something similar).
3117 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
3118 in the source file (foo.c) like this:
3120 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
3121 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
3123 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
3124 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
3126 OPENSSL_DECLARE_GLOBAL(int,foo);
3127 #define foo OPENSSL_GLOBAL_REF(foo)
3128 OPENSSL_DECLARE_GLOBAL(double,bar);
3129 #define bar OPENSSL_GLOBAL_REF(bar)
3131 The #defines are very important, and therefore so is including the
3132 header file everywhere where the defined globals are used.
3134 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
3135 of ASN.1 items, but that structure is a bit different.
3137 The largest change is in util/mkdef.pl which has been enhanced with
3138 better and easier to understand logic to choose which symbols should
3139 go into the Windows .def files as well as a number of fixes and code
3140 cleanup (among others, algorithm keywords are now sorted
3141 lexicographically to avoid constant rewrites).
3144 *) In BN_div() keep a copy of the sign of 'num' before writing the
3145 result to 'rm' because if rm==num the value will be overwritten
3146 and produce the wrong result if 'num' is negative: this caused
3147 problems with BN_mod() and BN_nnmod().
3150 *) Function OCSP_request_verify(). This checks the signature on an
3151 OCSP request and verifies the signer certificate. The signer
3152 certificate is just checked for a generic purpose and OCSP request
3156 *) Add OCSP_check_validity() function to check the validity of OCSP
3157 responses. OCSP responses are prepared in real time and may only
3158 be a few seconds old. Simply checking that the current time lies
3159 between thisUpdate and nextUpdate max reject otherwise valid responses
3160 caused by either OCSP responder or client clock inaccuracy. Instead
3161 we allow thisUpdate and nextUpdate to fall within a certain period of
3162 the current time. The age of the response can also optionally be
3163 checked. Two new options -validity_period and -status_age added to
3167 *) If signature or public key algorithm is unrecognized print out its
3168 OID rather that just UNKNOWN.
3171 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
3172 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
3173 ID to be generated from the issuer certificate alone which can then be
3174 passed to OCSP_id_issuer_cmp().
3177 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
3178 ASN1 modules to export functions returning ASN1_ITEM pointers
3179 instead of the ASN1_ITEM structures themselves. This adds several
3180 new macros which allow the underlying ASN1 function/structure to
3181 be accessed transparently. As a result code should not use ASN1_ITEM
3182 references directly (such as &X509_it) but instead use the relevant
3183 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
3184 use of the new ASN1 code on platforms where exporting structures
3185 is problematical (for example in shared libraries) but exporting
3186 functions returning pointers to structures is not.
3189 *) Add support for overriding the generation of SSL/TLS session IDs.
3190 These callbacks can be registered either in an SSL_CTX or per SSL.
3191 The purpose of this is to allow applications to control, if they wish,
3192 the arbitrary values chosen for use as session IDs, particularly as it
3193 can be useful for session caching in multiple-server environments. A
3194 command-line switch for testing this (and any client code that wishes
3195 to use such a feature) has been added to "s_server".
3196 [Geoff Thorpe, Lutz Jaenicke]
3198 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
3199 of the form '#if defined(...) || defined(...) || ...' and
3200 '#if !defined(...) && !defined(...) && ...'. This also avoids
3201 the growing number of special cases it was previously handling.
3204 *) Make all configuration macros available for application by making
3205 sure they are available in opensslconf.h, by giving them names starting
3206 with "OPENSSL_" to avoid conflicts with other packages and by making
3207 sure e_os2.h will cover all platform-specific cases together with
3209 Additionally, it is now possible to define configuration/platform-
3210 specific names (called "system identities"). In the C code, these
3211 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
3212 macro with the name beginning with "OPENSSL_SYS_", which is determined
3213 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
3217 *) New option -set_serial to 'req' and 'x509' this allows the serial
3218 number to use to be specified on the command line. Previously self
3219 signed certificates were hard coded with serial number 0 and the
3220 CA options of 'x509' had to use a serial number in a file which was
3224 *) New options to 'ca' utility to support V2 CRL entry extensions.
3225 Currently CRL reason, invalidity date and hold instruction are
3226 supported. Add new CRL extensions to V3 code and some new objects.
3229 *) New function EVP_CIPHER_CTX_set_padding() this is used to
3230 disable standard block padding (aka PKCS#5 padding) in the EVP
3231 API, which was previously mandatory. This means that the data is
3232 not padded in any way and so the total length much be a multiple
3233 of the block size, otherwise an error occurs.
3236 *) Initial (incomplete) OCSP SSL support.
3239 *) New function OCSP_parse_url(). This splits up a URL into its host,
3240 port and path components: primarily to parse OCSP URLs. New -url
3241 option to ocsp utility.
3244 *) New nonce behavior. The return value of OCSP_check_nonce() now
3245 reflects the various checks performed. Applications can decide
3246 whether to tolerate certain situations such as an absent nonce
3247 in a response when one was present in a request: the ocsp application
3248 just prints out a warning. New function OCSP_add1_basic_nonce()
3249 this is to allow responders to include a nonce in a response even if
3250 the request is nonce-less.
3253 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
3254 skipped when using openssl x509 multiple times on a single input file,
3255 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
3258 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
3259 set string type: to handle setting ASN1_TIME structures. Fix ca
3260 utility to correctly initialize revocation date of CRLs.
3263 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
3264 the clients preferred ciphersuites and rather use its own preferences.
3265 Should help to work around M$ SGC (Server Gated Cryptography) bug in
3266 Internet Explorer by ensuring unchanged hash method during stepup.
3267 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
3270 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
3271 to aes and add a new 'exist' option to print out symbols that don't
3275 *) Additional options to ocsp utility to allow flags to be set and
3276 additional certificates supplied.
3279 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
3280 OCSP client a number of certificate to only verify the response
3284 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
3285 handle the new API. Currently only ECB, CBC modes supported. Add new
3288 Add TLS AES ciphersuites as described in RFC3268, "Advanced
3289 Encryption Standard (AES) Ciphersuites for Transport Layer
3290 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
3291 not enabled by default and were not part of the "ALL" ciphersuite
3292 alias because they were not yet official; they could be
3293 explicitly requested by specifying the "AESdraft" ciphersuite
3294 group alias. In the final release of OpenSSL 0.9.7, the group
3295 alias is called "AES" and is part of "ALL".)
3296 [Ben Laurie, Steve Henson, Bodo Moeller]
3298 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
3299 request to response.
3302 *) Functions for OCSP responders. OCSP_request_onereq_count(),
3303 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
3304 extract information from a certificate request. OCSP_response_create()
3305 creates a response and optionally adds a basic response structure.
3306 OCSP_basic_add1_status() adds a complete single response to a basic
3307 response and returns the OCSP_SINGLERESP structure just added (to allow
3308 extensions to be included for example). OCSP_basic_add1_cert() adds a
3309 certificate to a basic response and OCSP_basic_sign() signs a basic
3310 response with various flags. New helper functions ASN1_TIME_check()
3311 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
3312 (converts ASN1_TIME to GeneralizedTime).
3315 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
3316 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
3317 structure from a certificate. X509_pubkey_digest() digests the public_key
3318 contents: this is used in various key identifiers.
3321 *) Make sk_sort() tolerate a NULL argument.
3322 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
3324 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
3325 passed by the function are trusted implicitly. If any of them signed the
3326 response then it is assumed to be valid and is not verified.
3329 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
3330 to data. This was previously part of the PKCS7 ASN1 code. This
3331 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
3332 [Steve Henson, reported by Kenneth R. Robinette
3333 <support@securenetterm.com>]
3335 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
3336 routines: without these tracing memory leaks is very painful.
3337 Fix leaks in PKCS12 and PKCS7 routines.
3340 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
3341 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
3342 effectively meant GeneralizedTime would never be used. Now it
3343 is initialised to -1 but X509_time_adj() now has to check the value
3344 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
3345 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
3346 [Steve Henson, reported by Kenneth R. Robinette
3347 <support@securenetterm.com>]
3349 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
3350 result in a zero length in the ASN1_INTEGER structure which was
3351 not consistent with the structure when d2i_ASN1_INTEGER() was used
3352 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
3353 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
3354 where it did not print out a minus for negative ASN1_INTEGER.
3357 *) Add summary printout to ocsp utility. The various functions which
3358 convert status values to strings have been renamed to:
3359 OCSP_response_status_str(), OCSP_cert_status_str() and
3360 OCSP_crl_reason_str() and are no longer static. New options
3361 to verify nonce values and to disable verification. OCSP response
3362 printout format cleaned up.
3365 *) Add additional OCSP certificate checks. These are those specified
3366 in RFC2560. This consists of two separate checks: the CA of the
3367 certificate being checked must either be the OCSP signer certificate
3368 or the issuer of the OCSP signer certificate. In the latter case the
3369 OCSP signer certificate must contain the OCSP signing extended key
3370 usage. This check is performed by attempting to match the OCSP
3371 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
3372 in the OCSP_CERTID structures of the response.
3375 *) Initial OCSP certificate verification added to OCSP_basic_verify()
3376 and related routines. This uses the standard OpenSSL certificate
3377 verify routines to perform initial checks (just CA validity) and
3378 to obtain the certificate chain. Then additional checks will be
3379 performed on the chain. Currently the root CA is checked to see
3380 if it is explicitly trusted for OCSP signing. This is used to set
3381 a root CA as a global signing root: that is any certificate that
3382 chains to that CA is an acceptable OCSP signing certificate.
3385 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
3386 extensions from a separate configuration file.
3387 As when reading extensions from the main configuration file,
3388 the '-extensions ...' option may be used for specifying the
3390 [Massimiliano Pala <madwolf@comune.modena.it>]
3392 *) New OCSP utility. Allows OCSP requests to be generated or
3393 read. The request can be sent to a responder and the output
3394 parsed, outputed or printed in text form. Not complete yet:
3395 still needs to check the OCSP response validity.
3398 *) New subcommands for 'openssl ca':
3399 'openssl ca -status <serial>' prints the status of the cert with
3400 the given serial number (according to the index file).
3401 'openssl ca -updatedb' updates the expiry status of certificates
3403 [Massimiliano Pala <madwolf@comune.modena.it>]
3405 *) New '-newreq-nodes' command option to CA.pl. This is like
3406 '-newreq', but calls 'openssl req' with the '-nodes' option
3407 so that the resulting key is not encrypted.
3408 [Damien Miller <djm@mindrot.org>]
3410 *) New configuration for the GNU Hurd.
3411 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
3413 *) Initial code to implement OCSP basic response verify. This
3414 is currently incomplete. Currently just finds the signer's
3415 certificate and verifies the signature on the response.
3418 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
3419 value of OPENSSLDIR. This is available via the new '-d' option
3420 to 'openssl version', and is also included in 'openssl version -a'.
3423 *) Allowing defining memory allocation callbacks that will be given
3424 file name and line number information in additional arguments
3425 (a const char* and an int). The basic functionality remains, as
3426 well as the original possibility to just replace malloc(),
3427 realloc() and free() by functions that do not know about these
3428 additional arguments. To register and find out the current
3429 settings for extended allocation functions, the following
3430 functions are provided:
3432 CRYPTO_set_mem_ex_functions
3433 CRYPTO_set_locked_mem_ex_functions
3434 CRYPTO_get_mem_ex_functions
3435 CRYPTO_get_locked_mem_ex_functions
3437 These work the same way as CRYPTO_set_mem_functions and friends.
3438 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
3439 extended allocation function is enabled.
3440 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
3441 a conventional allocation function is enabled.
3442 [Richard Levitte, Bodo Moeller]
3444 *) Finish off removing the remaining LHASH function pointer casts.
3445 There should no longer be any prototype-casting required when using
3446 the LHASH abstraction, and any casts that remain are "bugs". See
3447 the callback types and macros at the head of lhash.h for details
3448 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
3451 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
3452 If /dev/[u]random devices are not available or do not return enough
3453 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
3455 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
3456 /etc/entropy will be queried once each in this sequence, quering stops
3457 when enough entropy was collected without querying more sockets.
3460 *) Change the Unix RAND_poll() variant to be able to poll several
3461 random devices, as specified by DEVRANDOM, until a sufficient amount
3462 of data has been collected. We spend at most 10 ms on each file
3463 (select timeout) and read in non-blocking mode. DEVRANDOM now
3464 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
3465 (previously it was just the string "/dev/urandom"), so on typical
3466 platforms the 10 ms delay will never occur.
3467 Also separate out the Unix variant to its own file, rand_unix.c.
3468 For VMS, there's a currently-empty rand_vms.c.
3471 *) Move OCSP client related routines to ocsp_cl.c. These
3472 provide utility functions which an application needing
3473 to issue a request to an OCSP responder and analyse the
3474 response will typically need: as opposed to those which an
3475 OCSP responder itself would need which will be added later.
3477 OCSP_request_sign() signs an OCSP request with an API similar
3478 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
3479 response. OCSP_response_get1_basic() extracts basic response
3480 from response. OCSP_resp_find_status(): finds and extracts status
3481 information from an OCSP_CERTID structure (which will be created
3482 when the request structure is built). These are built from lower
3483 level functions which work on OCSP_SINGLERESP structures but
3484 wont normally be used unless the application wishes to examine
3485 extensions in the OCSP response for example.
3487 Replace nonce routines with a pair of functions.
3488 OCSP_request_add1_nonce() adds a nonce value and optionally
3489 generates a random value. OCSP_check_nonce() checks the
3490 validity of the nonce in an OCSP response.
3493 *) Change function OCSP_request_add() to OCSP_request_add0_id().
3494 This doesn't copy the supplied OCSP_CERTID and avoids the
3495 need to free up the newly created id. Change return type
3496 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
3497 This can then be used to add extensions to the request.
3498 Deleted OCSP_request_new(), since most of its functionality
3499 is now in OCSP_REQUEST_new() (and the case insensitive name
3500 clash) apart from the ability to set the request name which
3501 will be added elsewhere.
3504 *) Update OCSP API. Remove obsolete extensions argument from
3505 various functions. Extensions are now handled using the new
3506 OCSP extension code. New simple OCSP HTTP function which
3507 can be used to send requests and parse the response.
3510 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
3511 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
3512 uses the special reorder version of SET OF to sort the attributes
3513 and reorder them to match the encoded order. This resolves a long
3514 standing problem: a verify on a PKCS7 structure just after signing
3515 it used to fail because the attribute order did not match the
3516 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
3517 it uses the received order. This is necessary to tolerate some broken
3518 software that does not order SET OF. This is handled by encoding
3519 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
3520 to produce the required SET OF.
3523 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
3524 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
3525 files to get correct declarations of the ASN.1 item variables.
3528 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
3529 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
3530 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
3531 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
3532 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
3533 ASN1_ITEM and no wrapper functions.
3536 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
3537 replace the old function pointer based I/O routines. Change most of
3538 the *_d2i_bio() and *_d2i_fp() functions to use these.
3541 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
3542 lines, recognice more "algorithms" that can be deselected, and make
3543 it complain about algorithm deselection that isn't recognised.
3546 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
3547 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
3548 to use new functions. Add NO_ASN1_OLD which can be set to remove
3549 some old style ASN1 functions: this can be used to determine if old
3550 code will still work when these eventually go away.
3553 *) New extension functions for OCSP structures, these follow the
3554 same conventions as certificates and CRLs.
3557 *) New function X509V3_add1_i2d(). This automatically encodes and
3558 adds an extension. Its behaviour can be customised with various
3559 flags to append, replace or delete. Various wrappers added for
3560 certifcates and CRLs.
3563 *) Fix to avoid calling the underlying ASN1 print routine when
3564 an extension cannot be parsed. Correct a typo in the
3565 OCSP_SERVICELOC extension. Tidy up print OCSP format.
3568 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
3569 entries for variables.
3572 *) Add functionality to apps/openssl.c for detecting locking
3573 problems: As the program is single-threaded, all we have
3574 to do is register a locking callback using an array for
3575 storing which locks are currently held by the program.
3578 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
3579 SSL_get_ex_data_X509_STORE_idx(), which is used in
3580 ssl_verify_cert_chain() and thus can be called at any time
3581 during TLS/SSL handshakes so that thread-safety is essential.
3582 Unfortunately, the ex_data design is not at all suited
3583 for multi-threaded use, so it probably should be abolished.
3586 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
3587 [Broadcom, tweaked and integrated by Geoff Thorpe]
3589 *) Move common extension printing code to new function
3590 X509V3_print_extensions(). Reorganise OCSP print routines and
3591 implement some needed OCSP ASN1 functions. Add OCSP extensions.
3594 *) New function X509_signature_print() to remove duplication in some
3598 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
3599 set (this was treated exactly the same as SET OF previously). This
3600 is used to reorder the STACK representing the structure to match the
3601 encoding. This will be used to get round a problem where a PKCS7
3602 structure which was signed could not be verified because the STACK
3603 order did not reflect the encoded order.
3606 *) Reimplement the OCSP ASN1 module using the new code.
3609 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
3610 for its ASN1 operations. The old style function pointers still exist
3611 for now but they will eventually go away.
3614 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
3615 completely replaces the old ASN1 functionality with a table driven
3616 encoder and decoder which interprets an ASN1_ITEM structure describing
3617 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
3618 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
3619 has also been converted to the new form.
3622 *) Change BN_mod_exp_recp so that negative moduli are tolerated
3623 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
3624 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
3625 for negative moduli.
3628 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
3629 of not touching the result's sign bit.
3632 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
3636 *) Changed the LHASH code to use prototypes for callbacks, and created
3637 macros to declare and implement thin (optionally static) functions
3638 that provide type-safety and avoid function pointer casting for the
3639 type-specific callbacks.
3642 *) Added Kerberos Cipher Suites to be used with TLS, as written in
3644 [Veers Staats <staatsvr@asc.hpc.mil>,
3645 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
3647 *) Reformat the FAQ so the different questions and answers can be divided
3648 in sections depending on the subject.
3651 *) Have the zlib compression code load ZLIB.DLL dynamically under
3655 *) New function BN_mod_sqrt for computing square roots modulo a prime
3656 (using the probabilistic Tonelli-Shanks algorithm unless
3657 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
3658 be handled deterministically).
3659 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3661 *) Make BN_mod_inverse faster by explicitly handling small quotients
3662 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
3663 512 bits], about 30% for larger ones [1024 or 2048 bits].)
3666 *) New function BN_kronecker.
3669 *) Fix BN_gcd so that it works on negative inputs; the result is
3670 positive unless both parameters are zero.
3671 Previously something reasonably close to an infinite loop was
3672 possible because numbers could be growing instead of shrinking
3673 in the implementation of Euclid's algorithm.
3676 *) Fix BN_is_word() and BN_is_one() macros to take into account the
3677 sign of the number in question.
3679 Fix BN_is_word(a,w) to work correctly for w == 0.
3681 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
3682 because its test if the absolute value of 'a' equals 'w'.
3683 Note that BN_abs_is_word does *not* handle w == 0 reliably;
3684 it exists mostly for use in the implementations of BN_is_zero(),
3685 BN_is_one(), and BN_is_word().
3688 *) New function BN_swap.
3691 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
3692 the exponentiation functions are more likely to produce reasonable
3693 results on negative inputs.
3696 *) Change BN_mod_mul so that the result is always non-negative.
3697 Previously, it could be negative if one of the factors was negative;
3698 I don't think anyone really wanted that behaviour.
3701 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
3702 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
3703 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
3704 and add new functions:
3713 BN_mod_lshift1_quick
3717 These functions always generate non-negative results.
3719 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
3720 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
3722 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
3723 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
3724 be reduced modulo m.
3725 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3728 The following entry accidentily appeared in the CHANGES file
3729 distributed with OpenSSL 0.9.7. The modifications described in
3730 it do *not* apply to OpenSSL 0.9.7.
3732 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3733 was actually never needed) and in BN_mul(). The removal in BN_mul()
3734 required a small change in bn_mul_part_recursive() and the addition
3735 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3736 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3737 bn_sub_words() and bn_add_words() except they take arrays with
3742 *) In 'openssl passwd', verify passwords read from the terminal
3743 unless the '-salt' option is used (which usually means that
3744 verification would just waste user's time since the resulting
3745 hash is going to be compared with some given password hash)
3746 or the new '-noverify' option is used.
3748 This is an incompatible change, but it does not affect
3749 non-interactive use of 'openssl passwd' (passwords on the command
3750 line, '-stdin' option, '-in ...' option) and thus should not
3754 *) Remove all references to RSAref, since there's no more need for it.
3757 *) Make DSO load along a path given through an environment variable
3758 (SHLIB_PATH) with shl_load().
3761 *) Constify the ENGINE code as a result of BIGNUM constification.
3762 Also constify the RSA code and most things related to it. In a
3763 few places, most notable in the depth of the ASN.1 code, ugly
3764 casts back to non-const were required (to be solved at a later
3768 *) Make it so the openssl application has all engines loaded by default.
3771 *) Constify the BIGNUM routines a little more.
3774 *) Add the following functions:
3776 ENGINE_load_cswift()
3778 ENGINE_load_atalla()
3780 ENGINE_load_builtin_engines()
3782 That way, an application can itself choose if external engines that
3783 are built-in in OpenSSL shall ever be used or not. The benefit is
3784 that applications won't have to be linked with libdl or other dso
3785 libraries unless it's really needed.
3787 Changed 'openssl engine' to load all engines on demand.
3788 Changed the engine header files to avoid the duplication of some
3789 declarations (they differed!).
3792 *) 'openssl engine' can now list capabilities.
3795 *) Better error reporting in 'openssl engine'.
3798 *) Never call load_dh_param(NULL) in s_server.
3801 *) Add engine application. It can currently list engines by name and
3802 identity, and test if they are actually available.
3805 *) Improve RPM specification file by forcing symbolic linking and making
3806 sure the installed documentation is also owned by root.root.
3807 [Damien Miller <djm@mindrot.org>]
3809 *) Give the OpenSSL applications more possibilities to make use of
3810 keys (public as well as private) handled by engines.
3813 *) Add OCSP code that comes from CertCo.
3816 *) Add VMS support for the Rijndael code.
3819 *) Added untested support for Nuron crypto accelerator.
3822 *) Add support for external cryptographic devices. This code was
3823 previously distributed separately as the "engine" branch.
3824 [Geoff Thorpe, Richard Levitte]
3826 *) Rework the filename-translation in the DSO code. It is now possible to
3827 have far greater control over how a "name" is turned into a filename
3828 depending on the operating environment and any oddities about the
3829 different shared library filenames on each system.
3832 *) Support threads on FreeBSD-elf in Configure.
3835 *) Fix for SHA1 assembly problem with MASM: it produces
3836 warnings about corrupt line number information when assembling
3837 with debugging information. This is caused by the overlapping
3839 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
3842 NCONF_get_number() has no error checking at all. As a replacement,
3843 NCONF_get_number_e() is defined (_e for "error checking") and is
3844 promoted strongly. The old NCONF_get_number is kept around for
3845 binary backward compatibility.
3846 Make it possible for methods to load from something other than a BIO,
3847 by providing a function pointer that is given a name instead of a BIO.
3848 For example, this could be used to load configuration data from an
3852 *) Fix for non blocking accept BIOs. Added new I/O special reason
3853 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
3854 with non blocking I/O was not possible because no retry code was
3855 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
3859 *) Added the beginnings of Rijndael support.
3862 *) Fix for bug in DirectoryString mask setting. Add support for
3863 X509_NAME_print_ex() in 'req' and X509_print_ex() function
3864 to allow certificate printing to more controllable, additional
3865 'certopt' option to 'x509' to allow new printing options to be
3869 *) Clean old EAY MD5 hack from e_os.h.
3872 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
3874 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3875 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3876 [Joe Orton, Steve Henson]
3878 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
3880 *) Fix additional bug revealed by the NISCC test suite:
3882 Stop bug triggering large recursion when presented with
3883 certain ASN.1 tags (CVE-2003-0851)
3886 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
3888 *) Fix various bugs revealed by running the NISCC test suite:
3890 Stop out of bounds reads in the ASN1 code when presented with
3891 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3893 If verify callback ignores invalid public key errors don't try to check
3894 certificate signature with the NULL public key.
3898 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3899 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3903 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3904 extra data after the compression methods not only for TLS 1.0
3905 but also for SSL 3.0 (as required by the specification).
3906 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3908 *) Change X509_certificate_type() to mark the key as exported/exportable
3909 when it's 512 *bits* long, not 512 bytes.
3912 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
3914 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3915 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3916 a protocol version number mismatch like a decryption error
3917 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3920 *) Turn on RSA blinding by default in the default implementation
3921 to avoid a timing attack. Applications that don't want it can call
3922 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3923 They would be ill-advised to do so in most cases.
3924 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3926 *) Change RSA blinding code so that it works when the PRNG is not
3927 seeded (in this case, the secret RSA exponent is abused as
3928 an unpredictable seed -- if it is not unpredictable, there
3929 is no point in blinding anyway). Make RSA blinding thread-safe
3930 by remembering the creator's thread ID in rsa->blinding and
3931 having all other threads use local one-time blinding factors
3932 (this requires more computation than sharing rsa->blinding, but
3933 avoids excessive locking; and if an RSA object is not shared
3934 between threads, blinding will still be very fast).
3937 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
3939 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3940 via timing by performing a MAC computation even if incorrrect
3941 block cipher padding has been found. This is a countermeasure
3942 against active attacks where the attacker has to distinguish
3943 between bad padding and a MAC verification error. (CVE-2003-0078)
3945 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3946 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3947 Martin Vuagnoux (EPFL, Ilion)]
3949 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
3951 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
3952 memory from it's contents. This is done with a counter that will
3953 place alternating values in each byte. This can be used to solve
3954 two issues: 1) the removal of calls to memset() by highly optimizing
3955 compilers, and 2) cleansing with other values than 0, since those can
3956 be read through on certain media, for example a swap space on disk.
3959 *) Bugfix: client side session caching did not work with external caching,
3960 because the session->cipher setting was not restored when reloading
3961 from the external cache. This problem was masked, when
3962 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
3963 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
3966 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
3967 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
3968 [Zeev Lieber <zeev-l@yahoo.com>]
3970 *) Undo an undocumented change introduced in 0.9.6e which caused
3971 repeated calls to OpenSSL_add_all_ciphers() and
3972 OpenSSL_add_all_digests() to be ignored, even after calling
3976 *) Change the default configuration reader to deal with last line not
3977 being properly terminated.
3980 *) Change X509_NAME_cmp() so it applies the special rules on handling
3981 DN values that are of type PrintableString, as well as RDNs of type
3982 emailAddress where the value has the type ia5String.
3983 [stefank@valicert.com via Richard Levitte]
3985 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
3986 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
3987 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
3988 the bitwise-OR of the two for use by the majority of applications
3989 wanting this behaviour, and update the docs. The documented
3990 behaviour and actual behaviour were inconsistent and had been
3991 changing anyway, so this is more a bug-fix than a behavioural
3993 [Geoff Thorpe, diagnosed by Nadav Har'El]
3995 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
3996 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
3999 *) Fix initialization code race conditions in
4000 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
4001 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
4002 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
4003 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
4004 ssl2_get_cipher_by_char(),
4005 ssl3_get_cipher_by_char().
4006 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
4008 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
4009 the cached sessions are flushed, as the remove_cb() might use ex_data
4010 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
4011 (see [openssl.org #212]).
4012 [Geoff Thorpe, Lutz Jaenicke]
4014 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
4015 length, instead of the encoding length to d2i_ASN1_OBJECT.
4018 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
4020 *) [In 0.9.6g-engine release:]
4021 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
4022 [Lynn Gazis <lgazis@rainbow.com>]
4024 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
4026 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
4027 and get fix the header length calculation.
4028 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
4029 Alon Kantor <alonk@checkpoint.com> (and others),
4032 *) Use proper error handling instead of 'assertions' in buffer
4033 overflow checks added in 0.9.6e. This prevents DoS (the
4034 assertions could call abort()).
4035 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
4037 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
4039 *) Add various sanity checks to asn1_get_length() to reject
4040 the ASN1 length bytes if they exceed sizeof(long), will appear
4041 negative or the content length exceeds the length of the
4043 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4045 *) Fix cipher selection routines: ciphers without encryption had no flags
4046 for the cipher strength set and where therefore not handled correctly
4047 by the selection routines (PR #130).
4050 *) Fix EVP_dsa_sha macro.
4054 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
4055 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
4056 that was added in OpenSSL 0.9.6d.
4058 As the countermeasure turned out to be incompatible with some
4059 broken SSL implementations, the new option is part of SSL_OP_ALL.
4060 SSL_OP_ALL is usually employed when compatibility with weird SSL
4061 implementations is desired (e.g. '-bugs' option to 's_client' and
4062 's_server'), so the new option is automatically set in many
4066 *) Changes in security patch:
4068 Changes marked "(CHATS)" were sponsored by the Defense Advanced
4069 Research Projects Agency (DARPA) and Air Force Research Laboratory,
4070 Air Force Materiel Command, USAF, under agreement number
4073 *) Add various sanity checks to asn1_get_length() to reject
4074 the ASN1 length bytes if they exceed sizeof(long), will appear
4075 negative or the content length exceeds the length of the
4076 supplied buffer. (CVE-2002-0659)
4077 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4079 *) Assertions for various potential buffer overflows, not known to
4081 [Ben Laurie (CHATS)]
4083 *) Various temporary buffers to hold ASCII versions of integers were
4084 too small for 64 bit platforms. (CVE-2002-0655)
4085 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
4087 *) Remote buffer overflow in SSL3 protocol - an attacker could
4088 supply an oversized session ID to a client. (CVE-2002-0656)
4089 [Ben Laurie (CHATS)]
4091 *) Remote buffer overflow in SSL2 protocol - an attacker could
4092 supply an oversized client master key. (CVE-2002-0656)
4093 [Ben Laurie (CHATS)]
4095 Changes between 0.9.6c and 0.9.6d [9 May 2002]
4097 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
4098 encoded as NULL) with id-dsa-with-sha1.
4099 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
4101 *) Check various X509_...() return values in apps/req.c.
4102 [Nils Larsch <nla@trustcenter.de>]
4104 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
4105 an end-of-file condition would erronously be flagged, when the CRLF
4106 was just at the end of a processed block. The bug was discovered when
4107 processing data through a buffering memory BIO handing the data to a
4108 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
4109 <ptsekov@syntrex.com> and Nedelcho Stanev.
4112 *) Implement a countermeasure against a vulnerability recently found
4113 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
4114 before application data chunks to avoid the use of known IVs
4115 with data potentially chosen by the attacker.
4118 *) Fix length checks in ssl3_get_client_hello().
4121 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
4122 to prevent ssl3_read_internal() from incorrectly assuming that
4123 ssl3_read_bytes() found application data while handshake
4124 processing was enabled when in fact s->s3->in_read_app_data was
4125 merely automatically cleared during the initial handshake.
4126 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
4128 *) Fix object definitions for Private and Enterprise: they were not
4129 recognized in their shortname (=lowercase) representation. Extend
4130 obj_dat.pl to issue an error when using undefined keywords instead
4131 of silently ignoring the problem (Svenning Sorensen
4132 <sss@sss.dnsalias.net>).
4135 *) Fix DH_generate_parameters() so that it works for 'non-standard'
4136 generators, i.e. generators other than 2 and 5. (Previously, the
4137 code did not properly initialise the 'add' and 'rem' values to
4138 BN_generate_prime().)
4140 In the new general case, we do not insist that 'generator' is
4141 actually a primitive root: This requirement is rather pointless;
4142 a generator of the order-q subgroup is just as good, if not
4146 *) Map new X509 verification errors to alerts. Discovered and submitted by
4147 Tom Wu <tom@arcot.com>.
4150 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
4151 returning non-zero before the data has been completely received
4152 when using non-blocking I/O.
4153 [Bodo Moeller; problem pointed out by John Hughes]
4155 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
4156 [Ben Laurie, Lutz Jaenicke]
4158 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
4159 Yoram Zahavi <YoramZ@gilian.com>).
4162 *) Add information about CygWin 1.3 and on, and preserve proper
4163 configuration for the versions before that.
4164 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
4166 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
4167 check whether we deal with a copy of a session and do not delete from
4168 the cache in this case. Problem reported by "Izhar Shoshani Levi"
4169 <izhar@checkpoint.com>.
4172 *) Do not store session data into the internal session cache, if it
4173 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
4174 flag is set). Proposed by Aslam <aslam@funk.com>.
4177 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
4181 *) [In 0.9.6d-engine release:]
4182 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4183 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4185 *) Add the configuration target linux-s390x.
4186 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
4188 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
4189 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
4190 variable as an indication that a ClientHello message has been
4191 received. As the flag value will be lost between multiple
4192 invocations of ssl3_accept when using non-blocking I/O, the
4193 function may not be aware that a handshake has actually taken
4194 place, thus preventing a new session from being added to the
4197 To avoid this problem, we now set s->new_session to 2 instead of
4198 using a local variable.
4199 [Lutz Jaenicke, Bodo Moeller]
4201 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
4202 if the SSL_R_LENGTH_MISMATCH error is detected.
4203 [Geoff Thorpe, Bodo Moeller]
4205 *) New 'shared_ldflag' column in Configure platform table.
4208 *) Fix EVP_CIPHER_mode macro.
4209 ["Dan S. Camper" <dan@bti.net>]
4211 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
4212 type, we must throw them away by setting rr->length to 0.
4213 [D P Chang <dpc@qualys.com>]
4215 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
4217 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
4218 <Dominikus.Scherkl@biodata.com>. (The previous implementation
4219 worked incorrectly for those cases where range = 10..._2 and
4220 3*range is two bits longer than range.)
4223 *) Only add signing time to PKCS7 structures if it is not already
4227 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
4228 OBJ_ld_ce should be OBJ_id_ce.
4229 Also some ip-pda OIDs in crypto/objects/objects.txt were
4230 incorrect (cf. RFC 3039).
4231 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
4233 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
4234 returns early because it has nothing to do.
4235 [Andy Schneider <andy.schneider@bjss.co.uk>]
4237 *) [In 0.9.6c-engine release:]
4238 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
4239 [Andy Schneider <andy.schneider@bjss.co.uk>]
4241 *) [In 0.9.6c-engine release:]
4242 Add support for Cryptographic Appliance's keyserver technology.
4243 (Use engine 'keyclient')
4244 [Cryptographic Appliances and Geoff Thorpe]
4246 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
4247 is called via tools/c89.sh because arguments have to be
4248 rearranged (all '-L' options must appear before the first object
4250 [Richard Shapiro <rshapiro@abinitio.com>]
4252 *) [In 0.9.6c-engine release:]
4253 Add support for Broadcom crypto accelerator cards, backported
4255 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
4257 *) [In 0.9.6c-engine release:]
4258 Add support for SureWare crypto accelerator cards from
4259 Baltimore Technologies. (Use engine 'sureware')
4260 [Baltimore Technologies and Mark Cox]
4262 *) [In 0.9.6c-engine release:]
4263 Add support for crypto accelerator cards from Accelerated
4264 Encryption Processing, www.aep.ie. (Use engine 'aep')
4265 [AEP Inc. and Mark Cox]
4267 *) Add a configuration entry for gcc on UnixWare.
4268 [Gary Benson <gbenson@redhat.com>]
4270 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
4271 messages are stored in a single piece (fixed-length part and
4272 variable-length part combined) and fix various bugs found on the way.
4275 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
4276 instead. BIO_gethostbyname() does not know what timeouts are
4277 appropriate, so entries would stay in cache even when they have
4279 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
4281 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
4282 faced with a pathologically small ClientHello fragment that does
4283 not contain client_version: Instead of aborting with an error,
4284 simply choose the highest available protocol version (i.e.,
4285 TLS 1.0 unless it is disabled). In practice, ClientHello
4286 messages are never sent like this, but this change gives us
4287 strictly correct behaviour at least for TLS.
4290 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
4291 never resets s->method to s->ctx->method when called from within
4292 one of the SSL handshake functions.
4293 [Bodo Moeller; problem pointed out by Niko Baric]
4295 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
4296 (sent using the client's version number) if client_version is
4297 smaller than the protocol version in use. Also change
4298 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
4299 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
4300 the client will at least see that alert.
4303 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
4307 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
4308 client receives HelloRequest while in a handshake.
4309 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
4311 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
4312 should end in 'break', not 'goto end' which circuments various
4313 cleanups done in state SSL_ST_OK. But session related stuff
4314 must be disabled for SSL_ST_OK in the case that we just sent a
4317 Also avoid some overhead by not calling ssl_init_wbio_buffer()
4318 before just sending a HelloRequest.
4319 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
4321 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
4322 reveal whether illegal block cipher padding was found or a MAC
4323 verification error occured. (Neither SSLerr() codes nor alerts
4324 are directly visible to potential attackers, but the information
4325 may leak via logfiles.)
4327 Similar changes are not required for the SSL 2.0 implementation
4328 because the number of padding bytes is sent in clear for SSL 2.0,
4329 and the extra bytes are just ignored. However ssl/s2_pkt.c
4330 failed to verify that the purported number of padding bytes is in
4334 *) Add OpenUNIX-8 support including shared libraries
4335 (Boyd Lynn Gerber <gerberb@zenez.com>).
4338 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
4339 'wristwatch attack' using huge encoding parameters (cf.
4340 James H. Manger's CRYPTO 2001 paper). Note that the
4341 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
4342 encoding parameters and hence was not vulnerable.
4345 *) BN_sqr() bug fix.
4346 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
4348 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
4349 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
4350 followed by modular reduction.
4351 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
4353 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
4354 equivalent based on BN_pseudo_rand() instead of BN_rand().
4357 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
4358 This function was broken, as the check for a new client hello message
4359 to handle SGC did not allow these large messages.
4360 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
4363 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
4366 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
4367 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
4370 *) Rework the configuration and shared library support for Tru64 Unix.
4371 The configuration part makes use of modern compiler features and
4372 still retains old compiler behavior for those that run older versions
4373 of the OS. The shared library support part includes a variant that
4374 uses the RPATH feature, and is available through the special
4375 configuration target "alpha-cc-rpath", which will never be selected
4377 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
4379 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
4380 with the same message size as in ssl3_get_certificate_request().
4381 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
4382 messages might inadvertently be reject as too long.
4383 [Petr Lampa <lampa@fee.vutbr.cz>]
4385 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
4388 *) Modified SSL library such that the verify_callback that has been set
4389 specificly for an SSL object with SSL_set_verify() is actually being
4390 used. Before the change, a verify_callback set with this function was
4391 ignored and the verify_callback() set in the SSL_CTX at the time of
4392 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
4393 to allow the necessary settings.
4396 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
4397 explicitly to NULL, as at least on Solaris 8 this seems not always to be
4398 done automatically (in contradiction to the requirements of the C
4399 standard). This made problems when used from OpenSSH.
4402 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
4403 dh->length and always used
4405 BN_rand_range(priv_key, dh->p).
4407 BN_rand_range() is not necessary for Diffie-Hellman, and this
4408 specific range makes Diffie-Hellman unnecessarily inefficient if
4409 dh->length (recommended exponent length) is much smaller than the
4410 length of dh->p. We could use BN_rand_range() if the order of
4411 the subgroup was stored in the DH structure, but we only have
4416 BN_rand(priv_key, l, ...)
4418 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
4424 RSA_eay_public_encrypt
4425 RSA_eay_private_decrypt
4426 RSA_eay_private_encrypt (signing)
4427 RSA_eay_public_decrypt (signature verification)
4429 (default implementations for RSA_public_encrypt,
4430 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
4431 always reject numbers >= n.
4434 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
4435 to synchronize access to 'locking_thread'. This is necessary on
4436 systems where access to 'locking_thread' (an 'unsigned long'
4437 variable) is not atomic.
4440 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
4441 *before* setting the 'crypto_lock_rand' flag. The previous code had
4442 a race condition if 0 is a valid thread ID.
4443 [Travis Vitek <vitek@roguewave.com>]
4445 *) Add support for shared libraries under Irix.
4446 [Albert Chin-A-Young <china@thewrittenword.com>]
4448 *) Add configuration option to build on Linux on both big-endian and
4450 [Ralf Baechle <ralf@uni-koblenz.de>]
4452 *) Add the possibility to create shared libraries on HP-UX.
4455 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
4457 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
4458 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
4459 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
4460 PRNG state recovery was possible based on the output of
4461 one PRNG request appropriately sized to gain knowledge on
4462 'md' followed by enough consecutive 1-byte PRNG requests
4463 to traverse all of 'state'.
4465 1. When updating 'md_local' (the current thread's copy of 'md')
4466 during PRNG output generation, hash all of the previous
4467 'md_local' value, not just the half used for PRNG output.
4469 2. Make the number of bytes from 'state' included into the hash
4470 independent from the number of PRNG bytes requested.
4472 The first measure alone would be sufficient to avoid
4473 Markku-Juhani's attack. (Actually it had never occurred
4474 to me that the half of 'md_local' used for chaining was the
4475 half from which PRNG output bytes were taken -- I had always
4476 assumed that the secret half would be used.) The second
4477 measure makes sure that additional data from 'state' is never
4478 mixed into 'md_local' in small portions; this heuristically
4479 further strengthens the PRNG.
4482 *) Fix crypto/bn/asm/mips3.s.
4485 *) When only the key is given to "enc", the IV is undefined. Print out
4486 an error message in this case.
4489 *) Handle special case when X509_NAME is empty in X509 printing routines.
4492 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
4493 positive and less than q.
4496 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
4497 used: it isn't thread safe and the add_lock_callback should handle
4499 [Paul Rose <Paul.Rose@bridge.com>]
4501 *) Verify that incoming data obeys the block size in
4502 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
4506 [Ulf Möller, Bodo Möller]
4508 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
4509 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
4510 when fixing the server behaviour for backwards-compatible 'client
4511 hello' messages. (Note that the attack is impractical against
4512 SSL 3.0 and TLS 1.0 anyway because length and version checking
4513 means that the probability of guessing a valid ciphertext is
4514 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
4517 Before 0.9.5, the countermeasure (hide the error by generating a
4518 random 'decryption result') did not work properly because
4519 ERR_clear_error() was missing, meaning that SSL_get_error() would
4520 detect the supposedly ignored error.
4522 Both problems are now fixed.
4525 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
4526 (previously it was 1024).
4529 *) Fix for compatibility mode trust settings: ignore trust settings
4530 unless some valid trust or reject settings are present.
4533 *) Fix for blowfish EVP: its a variable length cipher.
4536 *) Fix various bugs related to DSA S/MIME verification. Handle missing
4537 parameters in DSA public key structures and return an error in the
4538 DSA routines if parameters are absent.
4541 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
4542 in the current directory if neither $RANDFILE nor $HOME was set.
4543 RAND_file_name() in 0.9.6a returned NULL in this case. This has
4544 caused some confusion to Windows users who haven't defined $HOME.
4545 Thus RAND_file_name() is changed again: e_os.h can define a
4546 DEFAULT_HOME, which will be used if $HOME is not set.
4547 For Windows, we use "C:"; on other platforms, we still require
4548 environment variables.
4550 *) Move 'if (!initialized) RAND_poll()' into regions protected by
4551 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
4552 having multiple threads call RAND_poll() concurrently.
4555 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
4556 combination of a flag and a thread ID variable.
4557 Otherwise while one thread is in ssleay_rand_bytes (which sets the
4558 flag), *other* threads can enter ssleay_add_bytes without obeying
4559 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
4560 that they do not hold after the first thread unsets add_do_not_lock).
4563 *) Change bctest again: '-x' expressions are not available in all
4567 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
4569 *) Fix a couple of memory leaks in PKCS7_dataDecode()
4570 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
4572 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
4573 the default extension for executables, if any. Also, make the perl
4574 scripts that use symlink() to test if it really exists and use "cp"
4575 if it doesn't. All this made OpenSSL compilable and installable in
4579 *) Fix for asn1_GetSequence() for indefinite length constructed data.
4580 If SEQUENCE is length is indefinite just set c->slen to the total
4581 amount of data available.
4582 [Steve Henson, reported by shige@FreeBSD.org]
4583 [This change does not apply to 0.9.7.]
4585 *) Change bctest to avoid here-documents inside command substitution
4586 (workaround for FreeBSD /bin/sh bug).
4587 For compatibility with Ultrix, avoid shell functions (introduced
4588 in the bctest version that searches along $PATH).
4591 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
4592 with des_encrypt() defined on some operating systems, like Solaris
4596 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
4597 On the Importance of Eliminating Errors in Cryptographic
4598 Computations, J. Cryptology 14 (2001) 2, 101-119,
4599 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
4602 *) MIPS assembler BIGNUM division bug fix.
4605 *) Disabled incorrect Alpha assembler code.
4608 *) Fix PKCS#7 decode routines so they correctly update the length
4609 after reading an EOC for the EXPLICIT tag.
4611 [This change does not apply to 0.9.7.]
4613 *) Fix bug in PKCS#12 key generation routines. This was triggered
4614 if a 3DES key was generated with a 0 initial byte. Include
4615 PKCS12_BROKEN_KEYGEN compilation option to retain the old
4616 (but broken) behaviour.
4619 *) Enhance bctest to search for a working bc along $PATH and print
4621 [Tim Rice <tim@multitalents.net> via Richard Levitte]
4623 *) Fix memory leaks in err.c: free err_data string if necessary;
4624 don't write to the wrong index in ERR_set_error_data.
4627 *) Implement ssl23_peek (analogous to ssl23_read), which previously
4631 *) Replace rdtsc with _emit statements for VC++ version 5.
4632 [Jeremy Cooper <jeremy@baymoo.org>]
4634 *) Make it possible to reuse SSLv2 sessions.
4637 *) In copy_email() check for >= 0 as a return value for
4638 X509_NAME_get_index_by_NID() since 0 is a valid index.
4639 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
4641 *) Avoid coredump with unsupported or invalid public keys by checking if
4642 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
4643 PKCS7_verify() fails with non detached data.
4646 *) Don't use getenv in library functions when run as setuid/setgid.
4647 New function OPENSSL_issetugid().
4650 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
4651 due to incorrect handling of multi-threading:
4653 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
4655 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
4657 3. Count how many times MemCheck_off() has been called so that
4658 nested use can be treated correctly. This also avoids
4659 inband-signalling in the previous code (which relied on the
4660 assumption that thread ID 0 is impossible).
4663 *) Add "-rand" option also to s_client and s_server.
4666 *) Fix CPU detection on Irix 6.x.
4667 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
4668 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4670 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
4673 [This change does not apply to 0.9.7.]
4675 *) Use the cached encoding of an X509_NAME structure rather than
4676 copying it. This is apparently the reason for the libsafe "errors"
4677 but the code is actually correct.
4680 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
4681 Bleichenbacher's DSA attack.
4682 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
4683 to be set and top=0 forces the highest bit to be set; top=-1 is new
4684 and leaves the highest bit random.
4685 [Ulf Moeller, Bodo Moeller]
4687 *) In the NCONF_...-based implementations for CONF_... queries
4688 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
4689 a temporary CONF structure with the data component set to NULL
4690 (which gives segmentation faults in lh_retrieve).
4691 Instead, use NULL for the CONF pointer in CONF_get_string and
4692 CONF_get_number (which may use environment variables) and directly
4693 return NULL from CONF_get_section.
4696 *) Fix potential buffer overrun for EBCDIC.
4699 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
4700 keyUsage if basicConstraints absent for a CA.
4703 *) Make SMIME_write_PKCS7() write mail header values with a format that
4704 is more generally accepted (no spaces before the semicolon), since
4705 some programs can't parse those values properly otherwise. Also make
4706 sure BIO's that break lines after each write do not create invalid
4710 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
4711 macros previously used would not encode an empty SEQUENCE OF
4712 and break the signature.
4714 [This change does not apply to 0.9.7.]
4716 *) Zero the premaster secret after deriving the master secret in
4720 *) Add some EVP_add_digest_alias registrations (as found in
4721 OpenSSL_add_all_digests()) to SSL_library_init()
4722 aka OpenSSL_add_ssl_algorithms(). This provides improved
4723 compatibility with peers using X.509 certificates
4724 with unconventional AlgorithmIdentifier OIDs.
4727 *) Fix for Irix with NO_ASM.
4728 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4730 *) ./config script fixes.
4731 [Ulf Moeller, Richard Levitte]
4733 *) Fix 'openssl passwd -1'.
4736 *) Change PKCS12_key_gen_asc() so it can cope with non null
4737 terminated strings whose length is passed in the passlen
4738 parameter, for example from PEM callbacks. This was done
4739 by adding an extra length parameter to asc2uni().
4740 [Steve Henson, reported by <oddissey@samsung.co.kr>]
4742 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
4743 call failed, free the DSA structure.
4746 *) Fix to uni2asc() to cope with zero length Unicode strings.
4747 These are present in some PKCS#12 files.
4750 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
4751 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
4752 when writing a 32767 byte record.
4753 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
4755 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
4756 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
4758 (RSA objects have a reference count access to which is protected
4759 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
4760 so they are meant to be shared between threads.)
4761 [Bodo Moeller, Geoff Thorpe; original patch submitted by
4762 "Reddie, Steven" <Steven.Reddie@ca.com>]
4764 *) Fix a deadlock in CRYPTO_mem_leaks().
4767 *) Use better test patterns in bntest.
4770 *) rand_win.c fix for Borland C.
4773 *) BN_rshift bugfix for n == 0.
4776 *) Add a 'bctest' script that checks for some known 'bc' bugs
4777 so that 'make test' does not abort just because 'bc' is broken.
4780 *) Store verify_result within SSL_SESSION also for client side to
4781 avoid potential security hole. (Re-used sessions on the client side
4782 always resulted in verify_result==X509_V_OK, not using the original
4783 result of the server certificate verification.)
4786 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
4787 SSL3_RT_APPLICATION_DATA, return 0.
4788 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
4792 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
4793 releases, have been re-implemented by renaming the previous
4794 implementations of ssl2_read and ssl3_read to ssl2_read_internal
4795 and ssl3_read_internal, respectively, and adding 'peek' parameters
4796 to them. The new ssl[23]_{read,peek} functions are calls to
4797 ssl[23]_read_internal with the 'peek' flag set appropriately.
4798 A 'peek' parameter has also been added to ssl3_read_bytes, which
4799 does the actual work for ssl3_read_internal.
4802 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
4803 the method-specific "init()" handler. Also clean up ex_data after
4804 calling the method-specific "finish()" handler. Previously, this was
4805 happening the other way round.
4808 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
4809 The previous value, 12, was not always sufficient for BN_mod_exp().
4812 *) Make sure that shared libraries get the internal name engine with
4813 the full version number and not just 0. This should mark the
4814 shared libraries as not backward compatible. Of course, this should
4815 be changed again when we can guarantee backward binary compatibility.
4818 *) Fix typo in get_cert_by_subject() in by_dir.c
4819 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
4821 *) Rework the system to generate shared libraries:
4823 - Make note of the expected extension for the shared libraries and
4824 if there is a need for symbolic links from for example libcrypto.so.0
4825 to libcrypto.so.0.9.7. There is extended info in Configure for
4828 - Make as few rebuilds of the shared libraries as possible.
4830 - Still avoid linking the OpenSSL programs with the shared libraries.
4832 - When installing, install the shared libraries separately from the
4836 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
4838 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
4839 and not in SSL_clear because the latter is also used by the
4840 accept/connect functions; previously, the settings made by
4841 SSL_set_read_ahead would be lost during the handshake.
4842 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
4844 *) Correct util/mkdef.pl to be selective about disabled algorithms.
4845 Previously, it would create entries for disableed algorithms no
4849 *) Added several new manual pages for SSL_* function.
4852 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
4854 *) In ssl23_get_client_hello, generate an error message when faced
4855 with an initial SSL 3.0/TLS record that is too small to contain the
4856 first two bytes of the ClientHello message, i.e. client_version.
4857 (Note that this is a pathologic case that probably has never happened
4858 in real life.) The previous approach was to use the version number
4859 from the record header as a substitute; but our protocol choice
4860 should not depend on that one because it is not authenticated
4861 by the Finished messages.
4864 *) More robust randomness gathering functions for Windows.
4865 [Jeffrey Altman <jaltman@columbia.edu>]
4867 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
4868 not set then we don't setup the error code for issuer check errors
4869 to avoid possibly overwriting other errors which the callback does
4870 handle. If an application does set the flag then we assume it knows
4871 what it is doing and can handle the new informational codes
4875 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
4876 a general "ANY" type, as such it should be able to decode anything
4877 including tagged types. However it didn't check the class so it would
4878 wrongly interpret tagged types in the same way as their universal
4879 counterpart and unknown types were just rejected. Changed so that the
4880 tagged and unknown types are handled in the same way as a SEQUENCE:
4881 that is the encoding is stored intact. There is also a new type
4882 "V_ASN1_OTHER" which is used when the class is not universal, in this
4883 case we have no idea what the actual type is so we just lump them all
4887 *) On VMS, stdout may very well lead to a file that is written to
4888 in a record-oriented fashion. That means that every write() will
4889 write a separate record, which will be read separately by the
4890 programs trying to read from it. This can be very confusing.
4892 The solution is to put a BIO filter in the way that will buffer
4893 text until a linefeed is reached, and then write everything a
4894 line at a time, so every record written will be an actual line,
4895 not chunks of lines and not (usually doesn't happen, but I've
4896 seen it once) several lines in one record. BIO_f_linebuffer() is
4899 Currently, it's a VMS-only method, because that's where it has
4900 been tested well enough.
4903 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
4904 it can return incorrect results.
4905 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
4906 but it was in 0.9.6-beta[12].)
4909 *) Disable the check for content being present when verifying detached
4910 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
4911 include zero length content when signing messages.
4914 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
4915 BIO_ctrl (for BIO pairs).
4918 *) Add DSO method for VMS.
4921 *) Bug fix: Montgomery multiplication could produce results with the
4925 *) Add RPM specification openssl.spec and modify it to build three
4926 packages. The default package contains applications, application
4927 documentation and run-time libraries. The devel package contains
4928 include files, static libraries and function documentation. The
4929 doc package contains the contents of the doc directory. The original
4930 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
4933 *) Add a large number of documentation files for many SSL routines.
4934 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
4936 *) Add a configuration entry for Sony News 4.
4937 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
4939 *) Don't set the two most significant bits to one when generating a
4940 random number < q in the DSA library.
4943 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
4944 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
4945 the underlying transport is blocking) if a handshake took place.
4946 (The default behaviour is needed by applications such as s_client
4947 and s_server that use select() to determine when to use SSL_read;
4948 but for applications that know in advance when to expect data, it
4949 just makes things more complicated.)
4952 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
4956 *) Add a few more EBCDIC conditionals that make `req' and `x509'
4957 work better on such systems.
4958 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
4960 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
4961 Update PKCS12_parse() so it copies the friendlyName and the
4962 keyid to the certificates aux info.
4965 *) Fix bug in PKCS7_verify() which caused an infinite loop
4966 if there was more than one signature.
4967 [Sven Uszpelkat <su@celocom.de>]
4969 *) Major change in util/mkdef.pl to include extra information
4970 about each symbol, as well as presentig variables as well
4971 as functions. This change means that there's n more need
4972 to rebuild the .num files when some algorithms are excluded.
4975 *) Allow the verify time to be set by an application,
4976 rather than always using the current time.
4979 *) Phase 2 verify code reorganisation. The certificate
4980 verify code now looks up an issuer certificate by a
4981 number of criteria: subject name, authority key id
4982 and key usage. It also verifies self signed certificates
4983 by the same criteria. The main comparison function is
4984 X509_check_issued() which performs these checks.
4986 Lot of changes were necessary in order to support this
4987 without completely rewriting the lookup code.
4989 Authority and subject key identifier are now cached.
4991 The LHASH 'certs' is X509_STORE has now been replaced
4992 by a STACK_OF(X509_OBJECT). This is mainly because an
4993 LHASH can't store or retrieve multiple objects with
4994 the same hash value.
4996 As a result various functions (which were all internal
4997 use only) have changed to handle the new X509_STORE
4998 structure. This will break anything that messed round
4999 with X509_STORE internally.
5001 The functions X509_STORE_add_cert() now checks for an
5002 exact match, rather than just subject name.
5004 The X509_STORE API doesn't directly support the retrieval
5005 of multiple certificates matching a given criteria, however
5006 this can be worked round by performing a lookup first
5007 (which will fill the cache with candidate certificates)
5008 and then examining the cache for matches. This is probably
5009 the best we can do without throwing out X509_LOOKUP
5010 entirely (maybe later...).
5012 The X509_VERIFY_CTX structure has been enhanced considerably.
5014 All certificate lookup operations now go via a get_issuer()
5015 callback. Although this currently uses an X509_STORE it
5016 can be replaced by custom lookups. This is a simple way
5017 to bypass the X509_STORE hackery necessary to make this
5018 work and makes it possible to use more efficient techniques
5019 in future. A very simple version which uses a simple
5020 STACK for its trusted certificate store is also provided
5021 using X509_STORE_CTX_trusted_stack().
5023 The verify_cb() and verify() callbacks now have equivalents
5024 in the X509_STORE_CTX structure.
5026 X509_STORE_CTX also has a 'flags' field which can be used
5027 to customise the verify behaviour.
5030 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
5031 excludes S/MIME capabilities.
5034 *) When a certificate request is read in keep a copy of the
5035 original encoding of the signed data and use it when outputing
5036 again. Signatures then use the original encoding rather than
5037 a decoded, encoded version which may cause problems if the
5038 request is improperly encoded.
5041 *) For consistency with other BIO_puts implementations, call
5042 buffer_write(b, ...) directly in buffer_puts instead of calling
5045 In BIO_puts, increment b->num_write as in BIO_write.
5046 [Peter.Sylvester@EdelWeb.fr]
5048 *) Fix BN_mul_word for the case where the word is 0. (We have to use
5049 BN_zero, we may not return a BIGNUM with an array consisting of
5053 *) Avoid calling abort() from within the library when problems are
5054 detected, except if preprocessor symbols have been defined
5055 (such as REF_CHECK, BN_DEBUG etc.).
5058 *) New openssl application 'rsautl'. This utility can be
5059 used for low level RSA operations. DER public key
5060 BIO/fp routines also added.
5063 *) New Configure entry and patches for compiling on QNX 4.
5064 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
5066 *) A demo state-machine implementation was sponsored by
5067 Nuron (http://www.nuron.com/) and is now available in
5068 demos/state_machine.
5071 *) New options added to the 'dgst' utility for signature
5072 generation and verification.
5075 *) Unrecognized PKCS#7 content types are now handled via a
5076 catch all ASN1_TYPE structure. This allows unsupported
5077 types to be stored as a "blob" and an application can
5078 encode and decode it manually.
5081 *) Fix various signed/unsigned issues to make a_strex.c
5083 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
5085 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
5086 length if passed a buffer. ASN1_INTEGER_to_BN failed
5087 if passed a NULL BN and its argument was negative.
5088 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
5090 *) Modification to PKCS#7 encoding routines to output definite
5091 length encoding. Since currently the whole structures are in
5092 memory there's not real point in using indefinite length
5093 constructed encoding. However if OpenSSL is compiled with
5094 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
5097 *) Added BIO_vprintf() and BIO_vsnprintf().
5100 *) Added more prefixes to parse for in the the strings written
5101 through a logging bio, to cover all the levels that are available
5102 through syslog. The prefixes are now:
5104 PANIC, EMERG, EMR => LOG_EMERG
5105 ALERT, ALR => LOG_ALERT
5106 CRIT, CRI => LOG_CRIT
5107 ERROR, ERR => LOG_ERR
5108 WARNING, WARN, WAR => LOG_WARNING
5109 NOTICE, NOTE, NOT => LOG_NOTICE
5110 INFO, INF => LOG_INFO
5111 DEBUG, DBG => LOG_DEBUG
5113 and as before, if none of those prefixes are present at the
5114 beginning of the string, LOG_ERR is chosen.
5116 On Win32, the LOG_* levels are mapped according to this:
5118 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
5119 LOG_WARNING => EVENTLOG_WARNING_TYPE
5120 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
5124 *) Made it possible to reconfigure with just the configuration
5125 argument "reconf" or "reconfigure". The command line arguments
5126 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
5127 and are retrieved from there when reconfiguring.
5131 [Assar Westerlund <assar@sics.se>, Richard Levitte]
5133 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
5136 *) The obj_dat.pl script was messing up the sorting of object
5137 names. The reason was that it compared the quoted version
5138 of strings as a result "OCSP" > "OCSP Signing" because
5139 " > SPACE. Changed script to store unquoted versions of
5140 names and add quotes on output. It was also omitting some
5141 names from the lookup table if they were given a default
5142 value (that is if SN is missing it is given the same
5143 value as LN and vice versa), these are now added on the
5144 grounds that if an object has a name we should be able to
5145 look it up. Finally added warning output when duplicate
5146 short or long names are found.
5149 *) Changes needed for Tandem NSK.
5150 [Scott Uroff <scott@xypro.com>]
5152 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
5153 RSA_padding_check_SSLv23(), special padding was never detected
5154 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
5155 version rollback attacks was not effective.
5157 In s23_clnt.c, don't use special rollback-attack detection padding
5158 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
5159 client; similarly, in s23_srvr.c, don't do the rollback check if
5160 SSL 2.0 is the only protocol enabled in the server.
5163 *) Make it possible to get hexdumps of unprintable data with 'openssl
5164 asn1parse'. By implication, the functions ASN1_parse_dump() and
5165 BIO_dump_indent() are added.
5168 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
5169 these print out strings and name structures based on various
5170 flags including RFC2253 support and proper handling of
5171 multibyte characters. Added options to the 'x509' utility
5172 to allow the various flags to be set.
5175 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
5176 Also change the functions X509_cmp_current_time() and
5177 X509_gmtime_adj() work with an ASN1_TIME structure,
5178 this will enable certificates using GeneralizedTime in validity
5179 dates to be checked.
5182 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
5183 negative public key encodings) on by default,
5184 NO_NEG_PUBKEY_BUG can be set to disable it.
5187 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
5188 content octets. An i2c_ASN1_OBJECT is unnecessary because
5189 the encoding can be trivially obtained from the structure.
5192 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
5193 not read locks (CRYPTO_r_[un]lock).
5196 *) A first attempt at creating official support for shared
5197 libraries through configuration. I've kept it so the
5198 default is static libraries only, and the OpenSSL programs
5199 are always statically linked for now, but there are
5200 preparations for dynamic linking in place.
5201 This has been tested on Linux and Tru64.
5204 *) Randomness polling function for Win9x, as described in:
5205 Peter Gutmann, Software Generation of Practically Strong
5209 *) Fix so PRNG is seeded in req if using an already existing
5213 *) New options to smime application. -inform and -outform
5214 allow alternative formats for the S/MIME message including
5215 PEM and DER. The -content option allows the content to be
5216 specified separately. This should allow things like Netscape
5217 form signing output easier to verify.
5220 *) Fix the ASN1 encoding of tags using the 'long form'.
5223 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
5224 STRING types. These convert content octets to and from the
5225 underlying type. The actual tag and length octets are
5226 already assumed to have been read in and checked. These
5227 are needed because all other string types have virtually
5228 identical handling apart from the tag. By having versions
5229 of the ASN1 functions that just operate on content octets
5230 IMPLICIT tagging can be handled properly. It also allows
5231 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
5232 and ASN1_INTEGER are identical apart from the tag.
5235 *) Change the handling of OID objects as follows:
5237 - New object identifiers are inserted in objects.txt, following
5238 the syntax given in objects.README.
5239 - objects.pl is used to process obj_mac.num and create a new
5241 - obj_dat.pl is used to create a new obj_dat.h, using the data in
5244 This is currently kind of a hack, and the perl code in objects.pl
5245 isn't very elegant, but it works as I intended. The simplest way
5246 to check that it worked correctly is to look in obj_dat.h and
5247 check the array nid_objs and make sure the objects haven't moved
5248 around (this is important!). Additions are OK, as well as
5249 consistent name changes.
5252 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
5255 *) Addition of the command line parameter '-rand file' to 'openssl req'.
5256 The given file adds to whatever has already been seeded into the
5257 random pool through the RANDFILE configuration file option or
5258 environment variable, or the default random state file.
5261 *) mkstack.pl now sorts each macro group into lexical order.
5262 Previously the output order depended on the order the files
5263 appeared in the directory, resulting in needless rewriting
5267 *) Patches to make OpenSSL compile under Win32 again. Mostly
5268 work arounds for the VC++ problem that it treats func() as
5269 func(void). Also stripped out the parts of mkdef.pl that
5270 added extra typesafe functions: these no longer exist.
5273 *) Reorganisation of the stack code. The macros are now all
5274 collected in safestack.h . Each macro is defined in terms of
5275 a "stack macro" of the form SKM_<name>(type, a, b). The
5276 DEBUG_SAFESTACK is now handled in terms of function casts,
5277 this has the advantage of retaining type safety without the
5278 use of additional functions. If DEBUG_SAFESTACK is not defined
5279 then the non typesafe macros are used instead. Also modified the
5280 mkstack.pl script to handle the new form. Needs testing to see
5281 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
5282 the default if no major problems. Similar behaviour for ASN1_SET_OF
5283 and PKCS12_STACK_OF.
5286 *) When some versions of IIS use the 'NET' form of private key the
5287 key derivation algorithm is different. Normally MD5(password) is
5288 used as a 128 bit RC4 key. In the modified case
5289 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
5290 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
5291 as the old Netscape_RSA functions except they have an additional
5292 'sgckey' parameter which uses the modified algorithm. Also added
5293 an -sgckey command line option to the rsa utility. Thanks to
5294 Adrian Peck <bertie@ncipher.com> for posting details of the modified
5295 algorithm to openssl-dev.
5298 *) The evp_local.h macros were using 'c.##kname' which resulted in
5299 invalid expansion on some systems (SCO 5.0.5 for example).
5300 Corrected to 'c.kname'.
5301 [Phillip Porch <root@theporch.com>]
5303 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
5304 a STACK of email addresses from a certificate or request, these look
5305 in the subject name and the subject alternative name extensions and
5306 omit any duplicate addresses.
5309 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
5310 This makes DSA verification about 2 % faster.
5313 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
5314 (meaning that now 2^5 values will be precomputed, which is only 4 KB
5315 plus overhead for 1024 bit moduli).
5316 This makes exponentiations about 0.5 % faster for 1024 bit
5317 exponents (as measured by "openssl speed rsa2048").
5320 *) Rename memory handling macros to avoid conflicts with other
5322 Malloc => OPENSSL_malloc
5323 Malloc_locked => OPENSSL_malloc_locked
5324 Realloc => OPENSSL_realloc
5325 Free => OPENSSL_free
5328 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
5329 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
5332 *) CygWin32 support.
5333 [John Jarvie <jjarvie@newsguy.com>]
5335 *) The type-safe stack code has been rejigged. It is now only compiled
5336 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
5337 by default all type-specific stack functions are "#define"d back to
5338 standard stack functions. This results in more streamlined output
5339 but retains the type-safety checking possibilities of the original
5343 *) The STACK code has been cleaned up, and certain type declarations
5344 that didn't make a lot of sense have been brought in line. This has
5345 also involved a cleanup of sorts in safestack.h to more correctly
5346 map type-safe stack functions onto their plain stack counterparts.
5347 This work has also resulted in a variety of "const"ifications of
5348 lots of the code, especially "_cmp" operations which should normally
5349 be prototyped with "const" parameters anyway.
5352 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
5353 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
5354 (The PRNG state consists of two parts, the large pool 'state' and 'md',
5355 where all of 'md' is used each time the PRNG is used, but 'state'
5356 is used only indexed by a cyclic counter. As entropy may not be
5357 well distributed from the beginning, 'md' is important as a
5358 chaining variable. However, the output function chains only half
5359 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
5360 all of 'md', and seeding with STATE_SIZE dummy bytes will result
5361 in all of 'state' being rewritten, with the new values depending
5362 on virtually all of 'md'. This overcomes the 80 bit limitation.)
5365 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
5366 the handshake is continued after ssl_verify_cert_chain();
5367 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
5368 can lead to 'unexplainable' connection aborts later.
5369 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
5371 *) Major EVP API cipher revision.
5372 Add hooks for extra EVP features. This allows various cipher
5373 parameters to be set in the EVP interface. Support added for variable
5374 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
5375 setting of RC2 and RC5 parameters.
5377 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
5380 Remove lots of duplicated code from the EVP library. For example *every*
5381 cipher init() function handles the 'iv' in the same way according to the
5382 cipher mode. They also all do nothing if the 'key' parameter is NULL and
5383 for CFB and OFB modes they zero ctx->num.
5385 New functionality allows removal of S/MIME code RC2 hack.
5387 Most of the routines have the same form and so can be declared in terms
5390 By shifting this to the top level EVP_CipherInit() it can be removed from
5391 all individual ciphers. If the cipher wants to handle IVs or keys
5392 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
5395 Change lots of functions like EVP_EncryptUpdate() to now return a
5396 value: although software versions of the algorithms cannot fail
5397 any installed hardware versions can.
5400 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
5401 this option is set, tolerate broken clients that send the negotiated
5402 protocol version number instead of the requested protocol version
5406 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
5407 i.e. non-zero for export ciphersuites, zero otherwise.
5408 Previous versions had this flag inverted, inconsistent with
5409 rsa_tmp_cb (..._TMP_RSA_CB).
5410 [Bodo Moeller; problem reported by Amit Chopra]
5412 *) Add missing DSA library text string. Work around for some IIS
5413 key files with invalid SEQUENCE encoding.
5416 *) Add a document (doc/standards.txt) that list all kinds of standards
5417 and so on that are implemented in OpenSSL.
5420 *) Enhance c_rehash script. Old version would mishandle certificates
5421 with the same subject name hash and wouldn't handle CRLs at all.
5422 Added -fingerprint option to crl utility, to support new c_rehash
5426 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
5429 *) Fix for SSL server purpose checking. Server checking was
5430 rejecting certificates which had extended key usage present
5431 but no ssl client purpose.
5432 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
5434 *) Make PKCS#12 code work with no password. The PKCS#12 spec
5435 is a little unclear about how a blank password is handled.
5436 Since the password in encoded as a BMPString with terminating
5437 double NULL a zero length password would end up as just the
5438 double NULL. However no password at all is different and is
5439 handled differently in the PKCS#12 key generation code. NS
5440 treats a blank password as zero length. MSIE treats it as no
5441 password on export: but it will try both on import. We now do
5442 the same: PKCS12_parse() tries zero length and no password if
5443 the password is set to "" or NULL (NULL is now a valid password:
5444 it wasn't before) as does the pkcs12 application.
5447 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
5448 perror when PEM_read_bio_X509_REQ fails, the error message must
5449 be obtained from the error queue.
5452 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
5453 it in ERR_remove_state if appropriate, and change ERR_get_state
5454 accordingly to avoid race conditions (this is necessary because
5455 thread_hash is no longer constant once set).
5458 *) Bugfix for linux-elf makefile.one.
5461 *) RSA_get_default_method() will now cause a default
5462 RSA_METHOD to be chosen if one doesn't exist already.
5463 Previously this was only set during a call to RSA_new()
5464 or RSA_new_method(NULL) meaning it was possible for
5465 RSA_get_default_method() to return NULL.
5468 *) Added native name translation to the existing DSO code
5469 that will convert (if the flag to do so is set) filenames
5470 that are sufficiently small and have no path information
5471 into a canonical native form. Eg. "blah" converted to
5472 "libblah.so" or "blah.dll" etc.
5475 *) New function ERR_error_string_n(e, buf, len) which is like
5476 ERR_error_string(e, buf), but writes at most 'len' bytes
5477 including the 0 terminator. For ERR_error_string_n, 'buf'
5479 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
5481 *) CONF library reworked to become more general. A new CONF
5482 configuration file reader "class" is implemented as well as a
5483 new functions (NCONF_*, for "New CONF") to handle it. The now
5484 old CONF_* functions are still there, but are reimplemented to
5485 work in terms of the new functions. Also, a set of functions
5486 to handle the internal storage of the configuration data is
5487 provided to make it easier to write new configuration file
5488 reader "classes" (I can definitely see something reading a
5489 configuration file in XML format, for example), called _CONF_*,
5490 or "the configuration storage API"...
5492 The new configuration file reading functions are:
5494 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
5495 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
5497 NCONF_default, NCONF_WIN32
5499 NCONF_dump_fp, NCONF_dump_bio
5501 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
5502 NCONF_new creates a new CONF object. This works in the same way
5503 as other interfaces in OpenSSL, like the BIO interface.
5504 NCONF_dump_* dump the internal storage of the configuration file,
5505 which is useful for debugging. All other functions take the same
5506 arguments as the old CONF_* functions wth the exception of the
5507 first that must be a `CONF *' instead of a `LHASH *'.
5509 To make it easer to use the new classes with the old CONF_* functions,
5510 the function CONF_set_default_method is provided.
5513 *) Add '-tls1' option to 'openssl ciphers', which was already
5514 mentioned in the documentation but had not been implemented.
5515 (This option is not yet really useful because even the additional
5516 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
5519 *) Initial DSO code added into libcrypto for letting OpenSSL (and
5520 OpenSSL-based applications) load shared libraries and bind to
5521 them in a portable way.
5522 [Geoff Thorpe, with contributions from Richard Levitte]
5524 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
5526 *) Make sure _lrotl and _lrotr are only used with MSVC.
5528 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
5529 (the default implementation of RAND_status).
5531 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
5532 to '-clrext' (= clear extensions), as intended and documented.
5533 [Bodo Moeller; inconsistency pointed out by Michael Attili
5536 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
5537 was larger than the MD block size.
5538 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
5540 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
5541 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
5542 using the passed key: if the passed key was a private key the result
5543 of X509_print(), for example, would be to print out all the private key
5547 *) des_quad_cksum() byte order bug fix.
5548 [Ulf Möller, using the problem description in krb4-0.9.7, where
5549 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
5551 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
5553 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
5555 *) For easily testing in shell scripts whether some command
5556 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
5557 returns with exit code 0 iff no command of the given name is available.
5558 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
5559 the output goes to stdout and nothing is printed to stderr.
5560 Additional arguments are always ignored.
5562 Since for each cipher there is a command of the same name,
5563 the 'no-cipher' compilation switches can be tested this way.
5565 ('openssl no-XXX' is not able to detect pseudo-commands such
5566 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
5569 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
5572 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
5573 is set; it will be thrown away anyway because each handshake creates
5575 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
5576 to parameters -- in previous versions (since OpenSSL 0.9.3) the
5577 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
5578 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
5581 *) New s_client option -ign_eof: EOF at stdin is ignored, and
5582 'Q' and 'R' lose their special meanings (quit/renegotiate).
5583 This is part of what -quiet does; unlike -quiet, -ign_eof
5584 does not suppress any output.
5587 *) Add compatibility options to the purpose and trust code. The
5588 purpose X509_PURPOSE_ANY is "any purpose" which automatically
5589 accepts a certificate or CA, this was the previous behaviour,
5590 with all the associated security issues.
5592 X509_TRUST_COMPAT is the old trust behaviour: only and
5593 automatically trust self signed roots in certificate store. A
5594 new trust setting X509_TRUST_DEFAULT is used to specify that
5595 a purpose has no associated trust setting and it should instead
5596 use the value in the default purpose.
5599 *) Fix the PKCS#8 DSA private key code so it decodes keys again
5600 and fix a memory leak.
5603 *) In util/mkerr.pl (which implements 'make errors'), preserve
5604 reason strings from the previous version of the .c file, as
5605 the default to have only downcase letters (and digits) in
5606 automatically generated reasons codes is not always appropriate.
5609 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
5610 using strerror. Previously, ERR_reason_error_string() returned
5611 library names as reason strings for SYSerr; but SYSerr is a special
5612 case where small numbers are errno values, not library numbers.
5615 *) Add '-dsaparam' option to 'openssl dhparam' application. This
5616 converts DSA parameters into DH parameters. (When creating parameters,
5617 DSA_generate_parameters is used.)
5620 *) Include 'length' (recommended exponent length) in C code generated
5621 by 'openssl dhparam -C'.
5624 *) The second argument to set_label in perlasm was already being used
5625 so couldn't be used as a "file scope" flag. Moved to third argument
5629 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
5630 instead of RAND_bytes for encryption IVs and salts.
5633 *) Include RAND_status() into RAND_METHOD instead of implementing
5634 it only for md_rand.c Otherwise replacing the PRNG by calling
5635 RAND_set_rand_method would be impossible.
5638 *) Don't let DSA_generate_key() enter an infinite loop if the random
5639 number generation fails.
5642 *) New 'rand' application for creating pseudo-random output.
5645 *) Added configuration support for Linux/IA64
5646 [Rolf Haberrecker <rolf@suse.de>]
5648 *) Assembler module support for Mingw32.
5651 *) Shared library support for HPUX (in shlib/).
5652 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
5654 *) Shared library support for Solaris gcc.
5655 [Lutz Behnke <behnke@trustcenter.de>]
5657 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
5659 *) PKCS7_encrypt() was adding text MIME headers twice because they
5660 were added manually and by SMIME_crlf_copy().
5663 *) In bntest.c don't call BN_rand with zero bits argument.
5664 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
5666 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
5667 case was implemented. This caused BN_div_recp() to fail occasionally.
5670 *) Add an optional second argument to the set_label() in the perl
5671 assembly language builder. If this argument exists and is set
5672 to 1 it signals that the assembler should use a symbol whose
5673 scope is the entire file, not just the current function. This
5674 is needed with MASM which uses the format label:: for this scope.
5675 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
5677 *) Change the ASN1 types so they are typedefs by default. Before
5678 almost all types were #define'd to ASN1_STRING which was causing
5679 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
5683 *) Change names of new functions to the new get1/get0 naming
5684 convention: After 'get1', the caller owns a reference count
5685 and has to call ..._free; 'get0' returns a pointer to some
5686 data structure without incrementing reference counters.
5687 (Some of the existing 'get' functions increment a reference
5688 counter, some don't.)
5689 Similarly, 'set1' and 'add1' functions increase reference
5690 counters or duplicate objects.
5693 *) Allow for the possibility of temp RSA key generation failure:
5694 the code used to assume it always worked and crashed on failure.
5697 *) Fix potential buffer overrun problem in BIO_printf().
5698 [Ulf Möller, using public domain code by Patrick Powell; problem
5699 pointed out by David Sacerdote <das33@cornell.edu>]
5701 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
5702 RAND_egd() and RAND_status(). In the command line application,
5703 the EGD socket can be specified like a seed file using RANDFILE
5707 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
5708 Some CAs (e.g. Verisign) distribute certificates in this form.
5711 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
5712 list to exclude them. This means that no special compilation option
5713 is needed to use anonymous DH: it just needs to be included in the
5717 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
5718 EVP_MD_type. The old functionality is available in a new macro called
5719 EVP_MD_md(). Change code that uses it and update docs.
5722 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
5723 where the 'void *' argument is replaced by a function pointer argument.
5724 Previously 'void *' was abused to point to functions, which works on
5725 many platforms, but is not correct. As these functions are usually
5726 called by macros defined in OpenSSL header files, most source code
5727 should work without changes.
5730 *) <openssl/opensslconf.h> (which is created by Configure) now contains
5731 sections with information on -D... compiler switches used for
5732 compiling the library so that applications can see them. To enable
5733 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
5734 must be defined. E.g.,
5735 #define OPENSSL_ALGORITHM_DEFINES
5736 #include <openssl/opensslconf.h>
5737 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
5738 [Richard Levitte, Ulf and Bodo Möller]
5740 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
5744 *) Change the 'other' type in certificate aux info to a STACK_OF
5745 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
5746 the required ASN1 format: arbitrary types determined by an OID.
5749 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
5750 argument to 'req'. This is not because the function is newer or
5751 better than others it just uses the work 'NEW' in the certificate
5752 request header lines. Some software needs this.
5755 *) Reorganise password command line arguments: now passwords can be
5756 obtained from various sources. Delete the PEM_cb function and make
5757 it the default behaviour: i.e. if the callback is NULL and the
5758 usrdata argument is not NULL interpret it as a null terminated pass
5759 phrase. If usrdata and the callback are NULL then the pass phrase
5760 is prompted for as usual.
5763 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
5764 the support is automatically enabled. The resulting binaries will
5765 autodetect the card and use it if present.
5766 [Ben Laurie and Compaq Inc.]
5768 *) Work around for Netscape hang bug. This sends certificate request
5769 and server done in one record. Since this is perfectly legal in the
5770 SSL/TLS protocol it isn't a "bug" option and is on by default. See
5771 the bugs/SSLv3 entry for more info.
5774 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
5777 *) Add -rand argument to smime and pkcs12 applications and read/write
5781 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
5784 *) Add command line password options to the remaining applications.
5787 *) Bug fix for BN_div_recp() for numerators with an even number of
5791 *) More tests in bntest.c, and changed test_bn output.
5794 *) ./config recognizes MacOS X now.
5797 *) Bug fix for BN_div() when the first words of num and divsor are
5798 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
5801 *) Add support for various broken PKCS#8 formats, and command line
5802 options to produce them.
5805 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
5806 get temporary BIGNUMs from a BN_CTX.
5809 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
5813 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
5814 include a #define from the old name to the new. The original intent
5815 was that statically linked binaries could for example just call
5816 SSLeay_add_all_ciphers() to just add ciphers to the table and not
5817 link with digests. This never worked becayse SSLeay_add_all_digests()
5818 and SSLeay_add_all_ciphers() were in the same source file so calling
5819 one would link with the other. They are now in separate source files.
5822 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
5825 *) Use a less unusual form of the Miller-Rabin primality test (it used
5826 a binary algorithm for exponentiation integrated into the Miller-Rabin
5827 loop, our standard modexp algorithms are faster).
5830 *) Support for the EBCDIC character set completed.
5831 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
5833 *) Source code cleanups: use const where appropriate, eliminate casts,
5834 use void * instead of char * in lhash.
5837 *) Bugfix: ssl3_send_server_key_exchange was not restartable
5838 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
5839 this the server could overwrite ephemeral keys that the client
5843 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
5844 using 50 iterations of the Rabin-Miller test.
5846 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
5847 iterations of the Rabin-Miller test as required by the appendix
5848 to FIPS PUB 186[-1]) instead of DSA_is_prime.
5849 As BN_is_prime_fasttest includes trial division, DSA parameter
5850 generation becomes much faster.
5852 This implies a change for the callback functions in DSA_is_prime
5853 and DSA_generate_parameters: The callback function is called once
5854 for each positive witness in the Rabin-Miller test, not just
5855 occasionally in the inner loop; and the parameters to the
5856 callback function now provide an iteration count for the outer
5857 loop rather than for the current invocation of the inner loop.
5858 DSA_generate_parameters additionally can call the callback
5859 function with an 'iteration count' of -1, meaning that a
5860 candidate has passed the trial division test (when q is generated
5861 from an application-provided seed, trial division is skipped).
5864 *) New function BN_is_prime_fasttest that optionally does trial
5865 division before starting the Rabin-Miller test and has
5866 an additional BN_CTX * argument (whereas BN_is_prime always
5867 has to allocate at least one BN_CTX).
5868 'callback(1, -1, cb_arg)' is called when a number has passed the
5869 trial division stage.
5872 *) Fix for bug in CRL encoding. The validity dates weren't being handled
5876 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
5879 *) New function BN_pseudo_rand().
5882 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
5883 bignum version of BN_from_montgomery() with the working code from
5884 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
5888 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
5889 made it impossible to use the same SSL_SESSION data structure in
5890 SSL2 clients in multiple threads.
5893 *) The return value of RAND_load_file() no longer counts bytes obtained
5894 by stat(). RAND_load_file(..., -1) is new and uses the complete file
5895 to seed the PRNG (previously an explicit byte count was required).
5896 [Ulf Möller, Bodo Möller]
5898 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
5899 used (char *) instead of (void *) and had casts all over the place.
5902 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
5905 *) Retain source code compatibility for BN_prime_checks macro:
5906 BN_is_prime(..., BN_prime_checks, ...) now uses
5907 BN_prime_checks_for_size to determine the appropriate number of
5908 Rabin-Miller iterations.
5911 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
5912 DH_CHECK_P_NOT_SAFE_PRIME.
5913 (Check if this is true? OpenPGP calls them "strong".)
5916 *) Merge the functionality of "dh" and "gendh" programs into a new program
5917 "dhparam". The old programs are retained for now but will handle DH keys
5918 (instead of parameters) in future.
5921 *) Make the ciphers, s_server and s_client programs check the return values
5922 when a new cipher list is set.
5925 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
5926 ciphers. Before when the 56bit ciphers were enabled the sorting was
5929 The syntax for the cipher sorting has been extended to support sorting by
5930 cipher-strength (using the strength_bits hard coded in the tables).
5931 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
5933 Fix a bug in the cipher-command parser: when supplying a cipher command
5934 string with an "undefined" symbol (neither command nor alphanumeric
5935 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
5936 an error is flagged.
5938 Due to the strength-sorting extension, the code of the
5939 ssl_create_cipher_list() function was completely rearranged. I hope that
5940 the readability was also increased :-)
5941 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5943 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
5944 for the first serial number and places 2 in the serial number file. This
5945 avoids problems when the root CA is created with serial number zero and
5946 the first user certificate has the same issuer name and serial number
5950 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
5951 the new code. Add documentation for this stuff.
5954 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
5955 X509_*() to X509at_*() on the grounds that they don't handle X509
5956 structures and behave in an analagous way to the X509v3 functions:
5957 they shouldn't be called directly but wrapper functions should be used
5960 So we also now have some wrapper functions that call the X509at functions
5961 when passed certificate requests. (TO DO: similar things can be done with
5962 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
5963 things. Some of these need some d2i or i2d and print functionality
5964 because they handle more complex structures.)
5967 *) Add missing #ifndefs that caused missing symbols when building libssl
5968 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
5969 NO_RSA in ssl/s2*.c.
5970 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
5972 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
5973 has a return value which indicates the quality of the random data
5974 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
5975 error queue. New function RAND_pseudo_bytes() generates output that is
5976 guaranteed to be unique but not unpredictable. RAND_add is like
5977 RAND_seed, but takes an extra argument for an entropy estimate
5978 (RAND_seed always assumes full entropy).
5981 *) Do more iterations of Rabin-Miller probable prime test (specifically,
5982 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
5983 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
5984 in crypto/bn/bn_prime.c for the complete table). This guarantees a
5985 false-positive rate of at most 2^-80 for random input.
5988 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
5991 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
5992 in the 0.9.5 release), this returns the chain
5993 from an X509_CTX structure with a dup of the stack and all
5994 the X509 reference counts upped: so the stack will exist
5995 after X509_CTX_cleanup() has been called. Modify pkcs12.c
5998 Also make SSL_SESSION_print() print out the verify return
6002 *) Add manpage for the pkcs12 command. Also change the default
6003 behaviour so MAC iteration counts are used unless the new
6004 -nomaciter option is used. This improves file security and
6005 only older versions of MSIE (4.0 for example) need it.
6008 *) Honor the no-xxx Configure options when creating .DEF files.
6011 *) Add PKCS#10 attributes to field table: challengePassword,
6012 unstructuredName and unstructuredAddress. These are taken from
6013 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
6014 international characters are used.
6016 More changes to X509_ATTRIBUTE code: allow the setting of types
6017 based on strings. Remove the 'loc' parameter when adding
6018 attributes because these will be a SET OF encoding which is sorted
6022 *) Initial changes to the 'req' utility to allow request generation
6023 automation. This will allow an application to just generate a template
6024 file containing all the field values and have req construct the
6027 Initial support for X509_ATTRIBUTE handling. Stacks of these are
6028 used all over the place including certificate requests and PKCS#7
6029 structures. They are currently handled manually where necessary with
6030 some primitive wrappers for PKCS#7. The new functions behave in a
6031 manner analogous to the X509 extension functions: they allow
6032 attributes to be looked up by NID and added.
6034 Later something similar to the X509V3 code would be desirable to
6035 automatically handle the encoding, decoding and printing of the
6036 more complex types. The string types like challengePassword can
6037 be handled by the string table functions.
6039 Also modified the multi byte string table handling. Now there is
6040 a 'global mask' which masks out certain types. The table itself
6041 can use the flag STABLE_NO_MASK to ignore the mask setting: this
6042 is useful when for example there is only one permissible type
6043 (as in countryName) and using the mask might result in no valid
6047 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
6048 SSL_get_peer_finished to allow applications to obtain the latest
6049 Finished messages sent to the peer or expected from the peer,
6050 respectively. (SSL_get_peer_finished is usually the Finished message
6051 actually received from the peer, otherwise the protocol will be aborted.)
6053 As the Finished message are message digests of the complete handshake
6054 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
6055 be used for external authentication procedures when the authentication
6056 provided by SSL/TLS is not desired or is not enough.
6059 *) Enhanced support for Alpha Linux is added. Now ./config checks if
6060 the host supports BWX extension and if Compaq C is present on the
6061 $PATH. Just exploiting of the BWX extension results in 20-30%
6062 performance kick for some algorithms, e.g. DES and RC4 to mention
6063 a couple. Compaq C in turn generates ~20% faster code for MD5 and
6067 *) Add support for MS "fast SGC". This is arguably a violation of the
6068 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
6069 weak crypto and after checking the certificate is SGC a second one
6070 with strong crypto. MS SGC stops the first handshake after receiving
6071 the server certificate message and sends a second client hello. Since
6072 a server will typically do all the time consuming operations before
6073 expecting any further messages from the client (server key exchange
6074 is the most expensive) there is little difference between the two.
6076 To get OpenSSL to support MS SGC we have to permit a second client
6077 hello message after we have sent server done. In addition we have to
6078 reset the MAC if we do get this second client hello.
6081 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
6082 if a DER encoded private key is RSA or DSA traditional format. Changed
6083 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
6084 format DER encoded private key. Newer code should use PKCS#8 format which
6085 has the key type encoded in the ASN1 structure. Added DER private key
6086 support to pkcs8 application.
6089 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
6090 ciphersuites has been selected (as required by the SSL 3/TLS 1
6091 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
6092 is set, we interpret this as a request to violate the specification
6093 (the worst that can happen is a handshake failure, and 'correct'
6094 behaviour would result in a handshake failure anyway).
6097 *) In SSL_CTX_add_session, take into account that there might be multiple
6098 SSL_SESSION structures with the same session ID (e.g. when two threads
6099 concurrently obtain them from an external cache).
6100 The internal cache can handle only one SSL_SESSION with a given ID,
6101 so if there's a conflict, we now throw out the old one to achieve
6105 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
6106 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
6107 some routines that use cipher OIDs: some ciphers do not have OIDs
6108 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
6112 *) Simplify the trust setting structure and code. Now we just have
6113 two sequences of OIDs for trusted and rejected settings. These will
6114 typically have values the same as the extended key usage extension
6115 and any application specific purposes.
6117 The trust checking code now has a default behaviour: it will just
6118 check for an object with the same NID as the passed id. Functions can
6119 be provided to override either the default behaviour or the behaviour
6120 for a given id. SSL client, server and email already have functions
6121 in place for compatibility: they check the NID and also return "trusted"
6122 if the certificate is self signed.
6125 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
6126 traditional format into an EVP_PKEY structure.
6129 *) Add a password callback function PEM_cb() which either prompts for
6130 a password if usr_data is NULL or otherwise assumes it is a null
6131 terminated password. Allow passwords to be passed on command line
6132 environment or config files in a few more utilities.
6135 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
6136 keys. Add some short names for PKCS#8 PBE algorithms and allow them
6137 to be specified on the command line for the pkcs8 and pkcs12 utilities.
6138 Update documentation.
6141 *) Support for ASN1 "NULL" type. This could be handled before by using
6142 ASN1_TYPE but there wasn't any function that would try to read a NULL
6143 and produce an error if it couldn't. For compatibility we also have
6144 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
6145 don't allocate anything because they don't need to.
6148 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
6150 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
6152 *) Rebuild of the memory allocation routines used by OpenSSL code and
6153 possibly others as well. The purpose is to make an interface that
6154 provide hooks so anyone can build a separate set of allocation and
6155 deallocation routines to be used by OpenSSL, for example memory
6156 pool implementations, or something else, which was previously hard
6157 since Malloc(), Realloc() and Free() were defined as macros having
6158 the values malloc, realloc and free, respectively (except for Win32
6159 compilations). The same is provided for memory debugging code.
6160 OpenSSL already comes with functionality to find memory leaks, but
6161 this gives people a chance to debug other memory problems.
6163 With these changes, a new set of functions and macros have appeared:
6165 CRYPTO_set_mem_debug_functions() [F]
6166 CRYPTO_get_mem_debug_functions() [F]
6167 CRYPTO_dbg_set_options() [F]
6168 CRYPTO_dbg_get_options() [F]
6169 CRYPTO_malloc_debug_init() [M]
6171 The memory debug functions are NULL by default, unless the library
6172 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
6173 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
6174 gives the standard debugging functions that come with OpenSSL) or
6175 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
6176 provided by the library user) must be used. When the standard
6177 debugging functions are used, CRYPTO_dbg_set_options can be used to
6178 request additional information:
6179 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
6180 the CRYPTO_MDEBUG_xxx macro when compiling the library.
6182 Also, things like CRYPTO_set_mem_functions will always give the
6183 expected result (the new set of functions is used for allocation
6184 and deallocation) at all times, regardless of platform and compiler
6187 To finish it up, some functions that were never use in any other
6188 way than through macros have a new API and new semantic:
6191 CRYPTO_dbg_realloc()
6194 All macros of value have retained their old syntax.
6195 [Richard Levitte and Bodo Moeller]
6197 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
6198 ordering of SMIMECapabilities wasn't in "strength order" and there
6199 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
6203 *) Some ASN1 types with illegal zero length encoding (INTEGER,
6204 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
6205 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
6207 *) Merge in my S/MIME library for OpenSSL. This provides a simple
6208 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
6209 functionality to handle multipart/signed properly) and a utility
6210 called 'smime' to call all this stuff. This is based on code I
6211 originally wrote for Celo who have kindly allowed it to be
6212 included in OpenSSL.
6215 *) Add variants des_set_key_checked and des_set_key_unchecked of
6216 des_set_key (aka des_key_sched). Global variable des_check_key
6217 decides which of these is called by des_set_key; this way
6218 des_check_key behaves as it always did, but applications and
6219 the library itself, which was buggy for des_check_key == 1,
6220 have a cleaner way to pick the version they need.
6223 *) New function PKCS12_newpass() which changes the password of a
6227 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
6228 dynamic mix. In both cases the ids can be used as an index into the
6229 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
6230 functions so they accept a list of the field values and the
6231 application doesn't need to directly manipulate the X509_TRUST
6235 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
6239 *) Modify the way the V3 extension code looks up extensions. This now
6240 works in a similar way to the object code: we have some "standard"
6241 extensions in a static table which is searched with OBJ_bsearch()
6242 and the application can add dynamic ones if needed. The file
6243 crypto/x509v3/ext_dat.h now has the info: this file needs to be
6244 updated whenever a new extension is added to the core code and kept
6245 in ext_nid order. There is a simple program 'tabtest.c' which checks
6246 this. New extensions are not added too often so this file can readily
6247 be maintained manually.
6249 There are two big advantages in doing things this way. The extensions
6250 can be looked up immediately and no longer need to be "added" using
6251 X509V3_add_standard_extensions(): this function now does nothing.
6252 [Side note: I get *lots* of email saying the extension code doesn't
6253 work because people forget to call this function]
6254 Also no dynamic allocation is done unless new extensions are added:
6255 so if we don't add custom extensions there is no need to call
6256 X509V3_EXT_cleanup().
6259 *) Modify enc utility's salting as follows: make salting the default. Add a
6260 magic header, so unsalted files fail gracefully instead of just decrypting
6261 to garbage. This is because not salting is a big security hole, so people
6262 should be discouraged from doing it.
6265 *) Fixes and enhancements to the 'x509' utility. It allowed a message
6266 digest to be passed on the command line but it only used this
6267 parameter when signing a certificate. Modified so all relevant
6268 operations are affected by the digest parameter including the
6269 -fingerprint and -x509toreq options. Also -x509toreq choked if a
6270 DSA key was used because it didn't fix the digest.
6273 *) Initial certificate chain verify code. Currently tests the untrusted
6274 certificates for consistency with the verify purpose (which is set
6275 when the X509_STORE_CTX structure is set up) and checks the pathlength.
6277 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
6278 this is because it will reject chains with invalid extensions whereas
6279 every previous version of OpenSSL and SSLeay made no checks at all.
6281 Trust code: checks the root CA for the relevant trust settings. Trust
6282 settings have an initial value consistent with the verify purpose: e.g.
6283 if the verify purpose is for SSL client use it expects the CA to be
6284 trusted for SSL client use. However the default value can be changed to
6285 permit custom trust settings: one example of this would be to only trust
6286 certificates from a specific "secure" set of CAs.
6288 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
6289 which should be used for version portability: especially since the
6290 verify structure is likely to change more often now.
6292 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
6293 to set them. If not set then assume SSL clients will verify SSL servers
6296 Two new options to the verify program: -untrusted allows a set of
6297 untrusted certificates to be passed in and -purpose which sets the
6298 intended purpose of the certificate. If a purpose is set then the
6299 new chain verify code is used to check extension consistency.
6302 *) Support for the authority information access extension.
6305 *) Modify RSA and DSA PEM read routines to transparently handle
6306 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
6307 public keys in a format compatible with certificate
6308 SubjectPublicKeyInfo structures. Unfortunately there were already
6309 functions called *_PublicKey_* which used various odd formats so
6310 these are retained for compatibility: however the DSA variants were
6311 never in a public release so they have been deleted. Changed dsa/rsa
6312 utilities to handle the new format: note no releases ever handled public
6313 keys so we should be OK.
6315 The primary motivation for this change is to avoid the same fiasco
6316 that dogs private keys: there are several incompatible private key
6317 formats some of which are standard and some OpenSSL specific and
6318 require various evil hacks to allow partial transparent handling and
6319 even then it doesn't work with DER formats. Given the option anything
6320 other than PKCS#8 should be dumped: but the other formats have to
6321 stay in the name of compatibility.
6323 With public keys and the benefit of hindsight one standard format
6324 is used which works with EVP_PKEY, RSA or DSA structures: though
6325 it clearly returns an error if you try to read the wrong kind of key.
6327 Added a -pubkey option to the 'x509' utility to output the public key.
6328 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
6329 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
6330 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
6331 that do the same as the EVP_PKEY_assign_*() except they up the
6332 reference count of the added key (they don't "swallow" the
6336 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
6337 CRLs would fail if the file contained no certificates or no CRLs:
6338 added a new function to read in both types and return the number
6339 read: this means that if none are read it will be an error. The
6340 DER versions of the certificate and CRL reader would always fail
6341 because it isn't possible to mix certificates and CRLs in DER format
6342 without choking one or the other routine. Changed this to just read
6343 a certificate: this is the best we can do. Also modified the code
6344 in apps/verify.c to take notice of return codes: it was previously
6345 attempting to read in certificates from NULL pointers and ignoring
6346 any errors: this is one reason why the cert and CRL reader seemed
6347 to work. It doesn't check return codes from the default certificate
6348 routines: these may well fail if the certificates aren't installed.
6351 *) Code to support otherName option in GeneralName.
6354 *) First update to verify code. Change the verify utility
6355 so it warns if it is passed a self signed certificate:
6356 for consistency with the normal behaviour. X509_verify
6357 has been modified to it will now verify a self signed
6358 certificate if *exactly* the same certificate appears
6359 in the store: it was previously impossible to trust a
6360 single self signed certificate. This means that:
6361 openssl verify ss.pem
6362 now gives a warning about a self signed certificate but
6363 openssl verify -CAfile ss.pem ss.pem
6367 *) For servers, store verify_result in SSL_SESSION data structure
6368 (and add it to external session representation).
6369 This is needed when client certificate verifications fails,
6370 but an application-provided verification callback (set by
6371 SSL_CTX_set_cert_verify_callback) allows accepting the session
6372 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
6373 but returns 1): When the session is reused, we have to set
6374 ssl->verify_result to the appropriate error code to avoid
6376 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
6378 *) Fix a bug in the new PKCS#7 code: it didn't consider the
6379 case in PKCS7_dataInit() where the signed PKCS7 structure
6380 didn't contain any existing data because it was being created.
6381 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
6383 *) Add a salt to the key derivation routines in enc.c. This
6384 forms the first 8 bytes of the encrypted file. Also add a
6385 -S option to allow a salt to be input on the command line.
6388 *) New function X509_cmp(). Oddly enough there wasn't a function
6389 to compare two certificates. We do this by working out the SHA1
6390 hash and comparing that. X509_cmp() will be needed by the trust
6394 *) SSL_get1_session() is like SSL_get_session(), but increments
6395 the reference count in the SSL_SESSION returned.
6396 [Geoff Thorpe <geoff@eu.c2.net>]
6398 *) Fix for 'req': it was adding a null to request attributes.
6399 Also change the X509_LOOKUP and X509_INFO code to handle
6400 certificate auxiliary information.
6403 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
6407 *) Add the possibility to add extra information to the memory leak
6408 detecting output, to form tracebacks, showing from where each
6409 allocation was originated: CRYPTO_push_info("constant string") adds
6410 the string plus current file name and line number to a per-thread
6411 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
6412 is like calling CYRPTO_pop_info() until the stack is empty.
6413 Also updated memory leak detection code to be multi-thread-safe.
6416 *) Add options -text and -noout to pkcs7 utility and delete the
6417 encryption options which never did anything. Update docs.
6420 *) Add options to some of the utilities to allow the pass phrase
6421 to be included on either the command line (not recommended on
6422 OSes like Unix) or read from the environment. Update the
6423 manpages and fix a few bugs.
6426 *) Add a few manpages for some of the openssl commands.
6429 *) Fix the -revoke option in ca. It was freeing up memory twice,
6430 leaking and not finding already revoked certificates.
6433 *) Extensive changes to support certificate auxiliary information.
6434 This involves the use of X509_CERT_AUX structure and X509_AUX
6435 functions. An X509_AUX function such as PEM_read_X509_AUX()
6436 can still read in a certificate file in the usual way but it
6437 will also read in any additional "auxiliary information". By
6438 doing things this way a fair degree of compatibility can be
6439 retained: existing certificates can have this information added
6440 using the new 'x509' options.
6442 Current auxiliary information includes an "alias" and some trust
6443 settings. The trust settings will ultimately be used in enhanced
6444 certificate chain verification routines: currently a certificate
6445 can only be trusted if it is self signed and then it is trusted
6449 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
6450 The problem was that one of the replacement routines had not been working
6451 since SSLeay releases. For now the offending routine has been replaced
6452 with non-optimised assembler. Even so, this now gives around 95%
6453 performance improvement for 1024 bit RSA signs.
6456 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
6457 handling. Most clients have the effective key size in bits equal to
6458 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
6459 A few however don't do this and instead use the size of the decrypted key
6460 to determine the RC2 key length and the AlgorithmIdentifier to determine
6461 the effective key length. In this case the effective key length can still
6462 be 40 bits but the key length can be 168 bits for example. This is fixed
6463 by manually forcing an RC2 key into the EVP_PKEY structure because the
6464 EVP code can't currently handle unusual RC2 key sizes: it always assumes
6465 the key length and effective key length are equal.
6468 *) Add a bunch of functions that should simplify the creation of
6469 X509_NAME structures. Now you should be able to do:
6470 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
6471 and have it automatically work out the correct field type and fill in
6472 the structures. The more adventurous can try:
6473 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
6474 and it will (hopefully) work out the correct multibyte encoding.
6477 *) Change the 'req' utility to use the new field handling and multibyte
6478 copy routines. Before the DN field creation was handled in an ad hoc
6479 way in req, ca, and x509 which was rather broken and didn't support
6480 BMPStrings or UTF8Strings. Since some software doesn't implement
6481 BMPStrings or UTF8Strings yet, they can be enabled using the config file
6482 using the dirstring_type option. See the new comment in the default
6483 openssl.cnf for more info.
6486 *) Make crypto/rand/md_rand.c more robust:
6487 - Assure unique random numbers after fork().
6488 - Make sure that concurrent threads access the global counter and
6489 md serializably so that we never lose entropy in them
6490 or use exactly the same state in multiple threads.
6491 Access to the large state is not always serializable because
6492 the additional locking could be a performance killer, and
6493 md should be large enough anyway.
6496 *) New file apps/app_rand.c with commonly needed functionality
6497 for handling the random seed file.
6499 Use the random seed file in some applications that previously did not:
6501 dsaparam -genkey (which also ignored its '-rand' option),
6504 x509 (when signing).
6505 Except on systems with /dev/urandom, it is crucial to have a random
6506 seed file at least for key creation, DSA signing, and for DH exchanges;
6507 for RSA signatures we could do without one.
6509 gendh and gendsa (unlike genrsa) used to read only the first byte
6510 of each file listed in the '-rand' option. The function as previously
6511 found in genrsa is now in app_rand.c and is used by all programs
6512 that support '-rand'.
6515 *) In RAND_write_file, use mode 0600 for creating files;
6516 don't just chmod when it may be too late.
6519 *) Report an error from X509_STORE_load_locations
6520 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
6523 *) New function ASN1_mbstring_copy() this copies a string in either
6524 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
6525 into an ASN1_STRING type. A mask of permissible types is passed
6526 and it chooses the "minimal" type to use or an error if not type
6530 *) Add function equivalents to the various macros in asn1.h. The old
6531 macros are retained with an M_ prefix. Code inside the library can
6532 use the M_ macros. External code (including the openssl utility)
6533 should *NOT* in order to be "shared library friendly".
6536 *) Add various functions that can check a certificate's extensions
6537 to see if it usable for various purposes such as SSL client,
6538 server or S/MIME and CAs of these types. This is currently
6539 VERY EXPERIMENTAL but will ultimately be used for certificate chain
6540 verification. Also added a -purpose flag to x509 utility to
6541 print out all the purposes.
6544 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
6548 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
6549 for, obtain and decode and extension and obtain its critical flag.
6550 This allows all the necessary extension code to be handled in a
6551 single function call.
6554 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
6555 platforms. See crypto/rc4/rc4_enc.c for further details.
6558 *) New -noout option to asn1parse. This causes no output to be produced
6559 its main use is when combined with -strparse and -out to extract data
6560 from a file (which may not be in ASN.1 format).
6563 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
6564 when producing the local key id.
6565 [Richard Levitte <levitte@stacken.kth.se>]
6567 *) New option -dhparam in s_server. This allows a DH parameter file to be
6568 stated explicitly. If it is not stated then it tries the first server
6569 certificate file. The previous behaviour hard coded the filename
6573 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
6574 a public key to be input or output. For example:
6575 openssl rsa -in key.pem -pubout -out pubkey.pem
6576 Also added necessary DSA public key functions to handle this.
6579 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
6580 in the message. This was handled by allowing
6581 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
6582 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
6584 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
6585 to the end of the strings whereas this didn't. This would cause problems
6586 if strings read with d2i_ASN1_bytes() were later modified.
6587 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
6589 *) Fix for base64 decode bug. When a base64 bio reads only one line of
6590 data and it contains EOF it will end up returning an error. This is
6591 caused by input 46 bytes long. The cause is due to the way base64
6592 BIOs find the start of base64 encoded data. They do this by trying a
6593 trial decode on each line until they find one that works. When they
6594 do a flag is set and it starts again knowing it can pass all the
6595 data directly through the decoder. Unfortunately it doesn't reset
6596 the context it uses. This means that if EOF is reached an attempt
6597 is made to pass two EOFs through the context and this causes the
6598 resulting error. This can also cause other problems as well. As is
6599 usual with these problems it takes *ages* to find and the fix is
6600 trivial: move one line.
6601 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
6603 *) Ugly workaround to get s_client and s_server working under Windows. The
6604 old code wouldn't work because it needed to select() on sockets and the
6605 tty (for keypresses and to see if data could be written). Win32 only
6606 supports select() on sockets so we select() with a 1s timeout on the
6607 sockets and then see if any characters are waiting to be read, if none
6608 are present then we retry, we also assume we can always write data to
6609 the tty. This isn't nice because the code then blocks until we've
6610 received a complete line of data and it is effectively polling the
6611 keyboard at 1s intervals: however it's quite a bit better than not
6612 working at all :-) A dedicated Windows application might handle this
6613 with an event loop for example.
6616 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
6617 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
6618 will be called when RSA_sign() and RSA_verify() are used. This is useful
6619 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
6620 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
6621 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
6622 This necessitated the support of an extra signature type NID_md5_sha1
6623 for SSL signatures and modifications to the SSL library to use it instead
6624 of calling RSA_public_decrypt() and RSA_private_encrypt().
6627 *) Add new -verify -CAfile and -CApath options to the crl program, these
6628 will lookup a CRL issuers certificate and verify the signature in a
6629 similar way to the verify program. Tidy up the crl program so it
6630 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
6631 less strict. It will now permit CRL extensions even if it is not
6632 a V2 CRL: this will allow it to tolerate some broken CRLs.
6635 *) Initialize all non-automatic variables each time one of the openssl
6636 sub-programs is started (this is necessary as they may be started
6637 multiple times from the "OpenSSL>" prompt).
6638 [Lennart Bang, Bodo Moeller]
6640 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
6641 removing all other RSA functionality (this is what NO_RSA does). This
6642 is so (for example) those in the US can disable those operations covered
6643 by the RSA patent while allowing storage and parsing of RSA keys and RSA
6647 *) Non-copying interface to BIO pairs.
6648 (still largely untested)
6651 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
6652 ASCII string. This was handled independently in various places before.
6655 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
6656 UTF8 strings a character at a time.
6659 *) Use client_version from client hello to select the protocol
6660 (s23_srvr.c) and for RSA client key exchange verification
6661 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
6664 *) Add various utility functions to handle SPKACs, these were previously
6665 handled by poking round in the structure internals. Added new function
6666 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
6667 print, verify and generate SPKACs. Based on an original idea from
6668 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
6671 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
6674 *) Allow the config file extension section to be overwritten on the
6675 command line. Based on an original idea from Massimiliano Pala
6676 <madwolf@comune.modena.it>. The new option is called -extensions
6677 and can be applied to ca, req and x509. Also -reqexts to override
6678 the request extensions in req and -crlexts to override the crl extensions
6682 *) Add new feature to the SPKAC handling in ca. Now you can include
6683 the same field multiple times by preceding it by "XXXX." for example:
6686 this is the same syntax as used in the req config file.
6689 *) Allow certificate extensions to be added to certificate requests. These
6690 are specified in a 'req_extensions' option of the req section of the
6691 config file. They can be printed out with the -text option to req but
6692 are otherwise ignored at present.
6695 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
6696 data read consists of only the final block it would not decrypted because
6697 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
6698 A misplaced 'break' also meant the decrypted final block might not be
6699 copied until the next read.
6702 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
6703 a few extra parameters to the DH structure: these will be useful if
6704 for example we want the value of 'q' or implement X9.42 DH.
6707 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
6708 provides hooks that allow the default DSA functions or functions on a
6709 "per key" basis to be replaced. This allows hardware acceleration and
6710 hardware key storage to be handled without major modification to the
6711 library. Also added low level modexp hooks and CRYPTO_EX structure and
6712 associated functions.
6715 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
6716 as "read only": it can't be written to and the buffer it points to will
6717 not be freed. Reading from a read only BIO is much more efficient than
6718 a normal memory BIO. This was added because there are several times when
6719 an area of memory needs to be read from a BIO. The previous method was
6720 to create a memory BIO and write the data to it, this results in two
6721 copies of the data and an O(n^2) reading algorithm. There is a new
6722 function BIO_new_mem_buf() which creates a read only memory BIO from
6723 an area of memory. Also modified the PKCS#7 routines to use read only
6727 *) Bugfix: ssl23_get_client_hello did not work properly when called in
6728 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
6729 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
6730 but a retry condition occured while trying to read the rest.
6733 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
6734 NID_pkcs7_encrypted by default: this was wrong since this should almost
6735 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
6736 the encrypted data type: this is a more sensible place to put it and it
6737 allows the PKCS#12 code to be tidied up that duplicated this
6741 *) Changed obj_dat.pl script so it takes its input and output files on
6742 the command line. This should avoid shell escape redirection problems
6746 *) Initial support for certificate extension requests, these are included
6747 in things like Xenroll certificate requests. Included functions to allow
6748 extensions to be obtained and added.
6751 *) -crlf option to s_client and s_server for sending newlines as
6752 CRLF (as required by many protocols).
6755 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
6757 *) Install libRSAglue.a when OpenSSL is built with RSAref.
6758 [Ralf S. Engelschall]
6760 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
6761 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
6763 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
6767 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
6768 DH parameters/keys (q is lost during that conversion, but the resulting
6769 DH parameters contain its length).
6771 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
6772 much faster than DH_generate_parameters (which creates parameters
6773 where p = 2*q + 1), and also the smaller q makes DH computations
6774 much more efficient (160-bit exponentiation instead of 1024-bit
6775 exponentiation); so this provides a convenient way to support DHE
6776 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
6777 utter importance to use
6778 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6780 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6781 when such DH parameters are used, because otherwise small subgroup
6782 attacks may become possible!
6785 *) Avoid memory leak in i2d_DHparams.
6788 *) Allow the -k option to be used more than once in the enc program:
6789 this allows the same encrypted message to be read by multiple recipients.
6792 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
6793 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
6794 it will always use the numerical form of the OID, even if it has a short
6798 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
6799 method only got called if p,q,dmp1,dmq1,iqmp components were present,
6800 otherwise bn_mod_exp was called. In the case of hardware keys for example
6801 no private key components need be present and it might store extra data
6802 in the RSA structure, which cannot be accessed from bn_mod_exp.
6803 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
6804 private key operations.
6807 *) Added support for SPARC Linux.
6810 *) pem_password_cb function type incompatibly changed from
6811 typedef int pem_password_cb(char *buf, int size, int rwflag);
6813 ....(char *buf, int size, int rwflag, void *userdata);
6814 so that applications can pass data to their callbacks:
6815 The PEM[_ASN1]_{read,write}... functions and macros now take an
6816 additional void * argument, which is just handed through whenever
6817 the password callback is called.
6818 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
6820 New function SSL_CTX_set_default_passwd_cb_userdata.
6822 Compatibility note: As many C implementations push function arguments
6823 onto the stack in reverse order, the new library version is likely to
6824 interoperate with programs that have been compiled with the old
6825 pem_password_cb definition (PEM_whatever takes some data that
6826 happens to be on the stack as its last argument, and the callback
6827 just ignores this garbage); but there is no guarantee whatsoever that
6830 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
6831 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
6832 problems not only on Windows, but also on some Unix platforms.
6833 To avoid problematic command lines, these definitions are now in an
6834 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
6835 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
6838 *) MIPS III/IV assembler module is reimplemented.
6841 *) More DES library cleanups: remove references to srand/rand and
6842 delete an unused file.
6845 *) Add support for the the free Netwide assembler (NASM) under Win32,
6846 since not many people have MASM (ml) and it can be hard to obtain.
6847 This is currently experimental but it seems to work OK and pass all
6848 the tests. Check out INSTALL.W32 for info.
6851 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
6852 without temporary keys kept an extra copy of the server key,
6853 and connections with temporary keys did not free everything in case
6857 *) New function RSA_check_key and new openssl rsa option -check
6858 for verifying the consistency of RSA keys.
6859 [Ulf Moeller, Bodo Moeller]
6861 *) Various changes to make Win32 compile work:
6862 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
6863 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
6864 comparison" warnings.
6865 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
6868 *) Add a debugging option to PKCS#5 v2 key generation function: when
6869 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
6870 derived keys are printed to stderr.
6873 *) Copy the flags in ASN1_STRING_dup().
6874 [Roman E. Pavlov <pre@mo.msk.ru>]
6876 *) The x509 application mishandled signing requests containing DSA
6877 keys when the signing key was also DSA and the parameters didn't match.
6879 It was supposed to omit the parameters when they matched the signing key:
6880 the verifying software was then supposed to automatically use the CA's
6881 parameters if they were absent from the end user certificate.
6883 Omitting parameters is no longer recommended. The test was also
6884 the wrong way round! This was probably due to unusual behaviour in
6885 EVP_cmp_parameters() which returns 1 if the parameters match.
6886 This meant that parameters were omitted when they *didn't* match and
6887 the certificate was useless. Certificates signed with 'ca' didn't have
6889 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
6891 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
6892 The interface is as follows:
6893 Applications can use
6894 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
6895 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
6896 "off" is now the default.
6897 The library internally uses
6898 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
6899 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
6900 to disable memory-checking temporarily.
6902 Some inconsistent states that previously were possible (and were
6903 even the default) are now avoided.
6905 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
6906 with each memory chunk allocated; this is occasionally more helpful
6907 than just having a counter.
6909 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
6911 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
6915 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
6916 which largely parallels "options", but is for changing API behaviour,
6917 whereas "options" are about protocol behaviour.
6918 Initial "mode" flags are:
6920 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
6921 a single record has been written.
6922 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
6923 retries use the same buffer location.
6924 (But all of the contents must be
6928 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
6931 *) Fix problems with no-hmac etc.
6932 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
6934 *) New functions RSA_get_default_method(), RSA_set_method() and
6935 RSA_get_method(). These allows replacement of RSA_METHODs without having
6936 to mess around with the internals of an RSA structure.
6939 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
6940 Also really enable memory leak checks in openssl.c and in some
6942 [Chad C. Mulligan, Bodo Moeller]
6944 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
6945 up the length of negative integers. This has now been simplified to just
6946 store the length when it is first determined and use it later, rather
6947 than trying to keep track of where data is copied and updating it to
6949 [Steve Henson, reported by Brien Wheeler
6950 <bwheeler@authentica-security.com>]
6952 *) Add a new function PKCS7_signatureVerify. This allows the verification
6953 of a PKCS#7 signature but with the signing certificate passed to the
6954 function itself. This contrasts with PKCS7_dataVerify which assumes the
6955 certificate is present in the PKCS#7 structure. This isn't always the
6956 case: certificates can be omitted from a PKCS#7 structure and be
6957 distributed by "out of band" means (such as a certificate database).
6960 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
6961 function prototypes in pem.h, also change util/mkdef.pl to add the
6962 necessary function names.
6965 *) mk1mf.pl (used by Windows builds) did not properly read the
6966 options set by Configure in the top level Makefile, and Configure
6967 was not even able to write more than one option correctly.
6968 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
6971 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
6972 file to be loaded from a BIO or FILE pointer. The BIO version will
6973 for example allow memory BIOs to contain config info.
6976 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
6977 Whoever hopes to achieve shared-library compatibility across versions
6978 must use this, not the compile-time macro.
6979 (Exercise 0.9.4: Which is the minimum library version required by
6981 Note: All this applies only to multi-threaded programs, others don't
6985 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
6986 through a BIO pair triggered the default case, i.e.
6987 SSLerr(...,SSL_R_UNKNOWN_STATE).
6990 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
6991 can use the SSL library even if none of the specific BIOs is
6995 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
6996 for the encoded length.
6997 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
6999 *) Add initial documentation of the X509V3 functions.
7002 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
7003 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
7004 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
7005 secure PKCS#8 private key format with a high iteration count.
7008 *) Fix determination of Perl interpreter: A perl or perl5
7009 _directory_ in $PATH was also accepted as the interpreter.
7010 [Ralf S. Engelschall]
7012 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
7013 wrong with it but it was very old and did things like calling
7014 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
7018 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
7019 to use the new extension code.
7022 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
7023 with macros. This should make it easier to change their form, add extra
7024 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
7028 *) Add to configuration table a new entry that can specify an alternative
7029 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
7030 according to Mark Crispin <MRC@Panda.COM>.
7034 *) DES CBC did not update the IV. Weird.
7037 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
7038 Changing the behaviour of the former might break existing programs --
7039 where IV updating is needed, des_ncbc_encrypt can be used.
7042 *) When bntest is run from "make test" it drives bc to check its
7043 calculations, as well as internally checking them. If an internal check
7044 fails, it needs to cause bc to give a non-zero result or make test carries
7045 on without noticing the failure. Fixed.
7048 *) DES library cleanups.
7051 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
7052 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
7053 ciphers. NOTE: although the key derivation function has been verified
7054 against some published test vectors it has not been extensively tested
7055 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
7059 *) Instead of "mkdir -p", which is not fully portable, use new
7060 Perl script "util/mkdir-p.pl".
7063 *) Rewrite the way password based encryption (PBE) is handled. It used to
7064 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
7065 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
7066 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
7067 the 'parameter' field of the AlgorithmIdentifier is passed to the
7068 underlying key generation function so it must do its own ASN1 parsing.
7069 This has also changed the EVP_PBE_CipherInit() function which now has a
7070 'parameter' argument instead of literal salt and iteration count values
7071 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
7074 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
7075 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
7076 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
7077 KEY" because this clashed with PKCS#8 unencrypted string. Since this
7078 value was just used as a "magic string" and not used directly its
7079 value doesn't matter.
7082 *) Introduce some semblance of const correctness to BN. Shame C doesn't
7086 *) "linux-sparc64" configuration (ultrapenguin).
7087 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
7088 "linux-sparc" configuration.
7089 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
7091 *) config now generates no-xxx options for missing ciphers.
7094 *) Support the EBCDIC character set (work in progress).
7095 File ebcdic.c not yet included because it has a different license.
7096 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7098 *) Support BS2000/OSD-POSIX.
7099 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7101 *) Make callbacks for key generation use void * instead of char *.
7104 *) Make S/MIME samples compile (not yet tested).
7107 *) Additional typesafe stacks.
7110 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
7114 Changes between 0.9.3 and 0.9.3a [29 May 1999]
7116 *) New configuration variant "sco5-gcc".
7118 *) Updated some demos.
7119 [Sean O Riordain, Wade Scholine]
7121 *) Add missing BIO_free at exit of pkcs12 application.
7124 *) Fix memory leak in conf.c.
7127 *) Updates for Win32 to assembler version of MD5.
7130 *) Set #! path to perl in apps/der_chop to where we found it
7131 instead of using a fixed path.
7134 *) SHA library changes for irix64-mips4-cc.
7137 *) Improvements for VMS support.
7141 Changes between 0.9.2b and 0.9.3 [24 May 1999]
7143 *) Bignum library bug fix. IRIX 6 passes "make test" now!
7144 This also avoids the problems with SC4.2 and unpatched SC5.
7145 [Andy Polyakov <appro@fy.chalmers.se>]
7147 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
7148 These are required because of the typesafe stack would otherwise break
7149 existing code. If old code used a structure member which used to be STACK
7150 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
7151 sk_num or sk_value it would produce an error because the num, data members
7152 are not present in STACK_OF. Now it just produces a warning. sk_set
7153 replaces the old method of assigning a value to sk_value
7154 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
7155 that does this will no longer work (and should use sk_set instead) but
7156 this could be regarded as a "questionable" behaviour anyway.
7159 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
7160 correctly handle encrypted S/MIME data.
7163 *) Change type of various DES function arguments from des_cblock
7164 (which means, in function argument declarations, pointer to char)
7165 to des_cblock * (meaning pointer to array with 8 char elements),
7166 which allows the compiler to do more typechecking; it was like
7167 that back in SSLeay, but with lots of ugly casts.
7169 Introduce new type const_des_cblock.
7172 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
7173 problems: find RecipientInfo structure that matches recipient certificate
7174 and initialise the ASN1 structures properly based on passed cipher.
7177 *) Belatedly make the BN tests actually check the results.
7180 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
7181 to and from BNs: it was completely broken. New compilation option
7182 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
7183 key elements as negative integers.
7186 *) Reorganize and speed up MD5.
7187 [Andy Polyakov <appro@fy.chalmers.se>]
7190 [Richard Levitte <richard@levitte.org>]
7192 *) New option -out to asn1parse to allow the parsed structure to be
7193 output to a file. This is most useful when combined with the -strparse
7194 option to examine the output of things like OCTET STRINGS.
7197 *) Make SSL library a little more fool-proof by not requiring any longer
7198 that SSL_set_{accept,connect}_state be called before
7199 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
7200 in many applications because usually everything *appeared* to work as
7201 intended anyway -- now it really works as intended).
7204 *) Move openssl.cnf out of lib/.
7207 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
7208 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
7209 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
7210 [Ralf S. Engelschall]
7212 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
7213 handle PKCS#7 enveloped data properly.
7214 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
7216 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
7217 copying pointers. The cert_st handling is changed by this in
7218 various ways (and thus what used to be known as ctx->default_cert
7219 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
7220 any longer when s->cert does not give us what we need).
7221 ssl_cert_instantiate becomes obsolete by this change.
7222 As soon as we've got the new code right (possibly it already is?),
7223 we have solved a couple of bugs of the earlier code where s->cert
7224 was used as if it could not have been shared with other SSL structures.
7226 Note that using the SSL API in certain dirty ways now will result
7227 in different behaviour than observed with earlier library versions:
7228 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
7229 does not influence s as it used to.
7231 In order to clean up things more thoroughly, inside SSL_SESSION
7232 we don't use CERT any longer, but a new structure SESS_CERT
7233 that holds per-session data (if available); currently, this is
7234 the peer's certificate chain and, for clients, the server's certificate
7235 and temporary key. CERT holds only those values that can have
7236 meaningful defaults in an SSL_CTX.
7239 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
7240 from the internal representation. Various PKCS#7 fixes: remove some
7241 evil casts and set the enc_dig_alg field properly based on the signing
7245 *) Allow PKCS#12 password to be set from the command line or the
7246 environment. Let 'ca' get its config file name from the environment
7247 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
7251 *) Allow certificate policies extension to use an IA5STRING for the
7252 organization field. This is contrary to the PKIX definition but
7253 VeriSign uses it and IE5 only recognises this form. Document 'x509'
7257 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
7258 without disallowing inline assembler and the like for non-pedantic builds.
7261 *) Support Borland C++ builder.
7262 [Janez Jere <jj@void.si>, modified by Ulf Möller]
7267 *) SHA-1 cleanups and performance enhancements.
7268 [Andy Polyakov <appro@fy.chalmers.se>]
7270 *) Sparc v8plus assembler for the bignum library.
7271 [Andy Polyakov <appro@fy.chalmers.se>]
7273 *) Accept any -xxx and +xxx compiler options in Configure.
7276 *) Update HPUX configuration.
7279 *) Add missing sk_<type>_unshift() function to safestack.h
7280 [Ralf S. Engelschall]
7282 *) New function SSL_CTX_use_certificate_chain_file that sets the
7283 "extra_cert"s in addition to the certificate. (This makes sense
7284 only for "PEM" format files, as chains as a whole are not
7288 *) Support verify_depth from the SSL API.
7289 x509_vfy.c had what can be considered an off-by-one-error:
7290 Its depth (which was not part of the external interface)
7291 was actually counting the number of certificates in a chain;
7292 now it really counts the depth.
7295 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
7296 instead of X509err, which often resulted in confusing error
7297 messages since the error codes are not globally unique
7298 (e.g. an alleged error in ssl3_accept when a certificate
7299 didn't match the private key).
7301 *) New function SSL_CTX_set_session_id_context that allows to set a default
7302 value (so that you don't need SSL_set_session_id_context for each
7303 connection using the SSL_CTX).
7306 *) OAEP decoding bug fix.
7309 *) Support INSTALL_PREFIX for package builders, as proposed by
7313 *) New Configure options "threads" and "no-threads". For systems
7314 where the proper compiler options are known (currently Solaris
7315 and Linux), "threads" is the default.
7318 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
7321 *) Install various scripts to $(OPENSSLDIR)/misc, not to
7322 $(INSTALLTOP)/bin -- they shouldn't clutter directories
7323 such as /usr/local/bin.
7326 *) "make linux-shared" to build shared libraries.
7327 [Niels Poppe <niels@netbox.org>]
7329 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
7332 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
7333 extension adding in x509 utility.
7336 *) Remove NOPROTO sections and error code comments.
7339 *) Partial rewrite of the DEF file generator to now parse the ANSI
7343 *) New Configure options --prefix=DIR and --openssldir=DIR.
7346 *) Complete rewrite of the error code script(s). It is all now handled
7347 by one script at the top level which handles error code gathering,
7348 header rewriting and C source file generation. It should be much better
7349 than the old method: it now uses a modified version of Ulf's parser to
7350 read the ANSI prototypes in all header files (thus the old K&R definitions
7351 aren't needed for error creation any more) and do a better job of
7352 translating function codes into names. The old 'ASN1 error code imbedded
7353 in a comment' is no longer necessary and it doesn't use .err files which
7354 have now been deleted. Also the error code call doesn't have to appear all
7355 on one line (which resulted in some large lines...).
7358 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
7361 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
7362 0 (which usually indicates a closed connection), but continue reading.
7365 *) Fix some race conditions.
7368 *) Add support for CRL distribution points extension. Add Certificate
7369 Policies and CRL distribution points documentation.
7372 *) Move the autogenerated header file parts to crypto/opensslconf.h.
7375 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
7376 8 of keying material. Merlin has also confirmed interop with this fix
7377 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
7378 [Merlin Hughes <merlin@baltimore.ie>]
7380 *) Fix lots of warnings.
7381 [Richard Levitte <levitte@stacken.kth.se>]
7383 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
7384 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
7385 [Richard Levitte <levitte@stacken.kth.se>]
7387 *) Fix problems with sizeof(long) == 8.
7388 [Andy Polyakov <appro@fy.chalmers.se>]
7390 *) Change functions to ANSI C.
7393 *) Fix typos in error codes.
7394 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
7396 *) Remove defunct assembler files from Configure.
7399 *) SPARC v8 assembler BIGNUM implementation.
7400 [Andy Polyakov <appro@fy.chalmers.se>]
7402 *) Support for Certificate Policies extension: both print and set.
7403 Various additions to support the r2i method this uses.
7406 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
7407 return a const string when you are expecting an allocated buffer.
7410 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
7411 types DirectoryString and DisplayText.
7414 *) Add code to allow r2i extensions to access the configuration database,
7415 add an LHASH database driver and add several ctx helper functions.
7418 *) Fix an evil bug in bn_expand2() which caused various BN functions to
7419 fail when they extended the size of a BIGNUM.
7422 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
7423 support typesafe stack.
7426 *) Fix typo in SSL_[gs]et_options().
7427 [Nils Frostberg <nils@medcom.se>]
7429 *) Delete various functions and files that belonged to the (now obsolete)
7430 old X509V3 handling code.
7433 *) New Configure option "rsaref".
7436 *) Don't auto-generate pem.h.
7439 *) Introduce type-safe ASN.1 SETs.
7442 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
7443 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
7445 *) Introduce type-safe STACKs. This will almost certainly break lots of code
7446 that links with OpenSSL (well at least cause lots of warnings), but fear
7447 not: the conversion is trivial, and it eliminates loads of evil casts. A
7448 few STACKed things have been converted already. Feel free to convert more.
7449 In the fullness of time, I'll do away with the STACK type altogether.
7452 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
7453 specified in <certfile> by updating the entry in the index.txt file.
7454 This way one no longer has to edit the index.txt file manually for
7455 revoking a certificate. The -revoke option does the gory details now.
7456 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
7458 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
7459 `-text' option at all and this way the `-noout -text' combination was
7460 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
7461 [Ralf S. Engelschall]
7463 *) Make sure a corresponding plain text error message exists for the
7464 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
7465 verify callback function determined that a certificate was revoked.
7466 [Ralf S. Engelschall]
7468 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
7469 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
7470 all available cipers including rc5, which was forgotten until now.
7471 In order to let the testing shell script know which algorithms
7472 are available, a new (up to now undocumented) command
7473 "openssl list-cipher-commands" is used.
7476 *) Bugfix: s_client occasionally would sleep in select() when
7477 it should have checked SSL_pending() first.
7480 *) New functions DSA_do_sign and DSA_do_verify to provide access to
7481 the raw DSA values prior to ASN.1 encoding.
7484 *) Tweaks to Configure
7485 [Niels Poppe <niels@netbox.org>]
7487 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
7491 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
7494 *) New config option to avoid instructions that are illegal on the 80386.
7495 The default code is faster, but requires at least a 486.
7498 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
7499 SSL2_SERVER_VERSION (not used at all) macros, which are now the
7500 same as SSL2_VERSION anyway.
7503 *) New "-showcerts" option for s_client.
7506 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
7507 application. Various cleanups and fixes.
7510 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
7511 modify error routines to work internally. Add error codes and PBE init
7512 to library startup routines.
7515 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
7516 packing functions to asn1 and evp. Changed function names and error
7517 codes along the way.
7520 *) PKCS12 integration: and so it begins... First of several patches to
7521 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
7522 objects to objects.h
7525 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
7526 and display support for Thawte strong extranet extension.
7529 *) Add LinuxPPC support.
7530 [Jeff Dubrule <igor@pobox.org>]
7532 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
7533 bn_div_words in alpha.s.
7534 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
7536 *) Make sure the RSA OAEP test is skipped under -DRSAref because
7537 OAEP isn't supported when OpenSSL is built with RSAref.
7538 [Ulf Moeller <ulf@fitug.de>]
7540 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
7541 so they no longer are missing under -DNOPROTO.
7542 [Soren S. Jorvang <soren@t.dk>]
7545 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
7547 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
7548 doesn't work when the session is reused. Coming soon!
7551 *) Fix a security hole, that allows sessions to be reused in the wrong
7552 context thus bypassing client cert protection! All software that uses
7553 client certs and session caches in multiple contexts NEEDS PATCHING to
7554 allow session reuse! A fuller solution is in the works.
7555 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
7557 *) Some more source tree cleanups (removed obsolete files
7558 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
7559 permission on "config" script to be executable) and a fix for the INSTALL
7561 [Ulf Moeller <ulf@fitug.de>]
7563 *) Remove some legacy and erroneous uses of malloc, free instead of
7565 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
7567 *) Make rsa_oaep_test return non-zero on error.
7568 [Ulf Moeller <ulf@fitug.de>]
7570 *) Add support for native Solaris shared libraries. Configure
7571 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
7572 if someone would make that last step automatic.
7573 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
7575 *) ctx_size was not built with the right compiler during "make links". Fixed.
7578 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
7579 except NULL ciphers". This means the default cipher list will no longer
7580 enable NULL ciphers. They need to be specifically enabled e.g. with
7581 the string "DEFAULT:eNULL".
7584 *) Fix to RSA private encryption routines: if p < q then it would
7585 occasionally produce an invalid result. This will only happen with
7586 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
7589 *) Be less restrictive and allow also `perl util/perlpath.pl
7590 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
7591 because this way one can also use an interpreter named `perl5' (which is
7592 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
7593 installed as `perl').
7594 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7596 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
7597 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7599 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
7600 advapi32.lib to Win32 build and change the pem test comparision
7601 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
7602 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
7603 and crypto/des/ede_cbcm_enc.c.
7606 *) DES quad checksum was broken on big-endian architectures. Fixed.
7609 *) Comment out two functions in bio.h that aren't implemented. Fix up the
7610 Win32 test batch file so it (might) work again. The Win32 test batch file
7611 is horrible: I feel ill....
7614 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
7615 in e_os.h. Audit of header files to check ANSI and non ANSI
7616 sections: 10 functions were absent from non ANSI section and not exported
7617 from Windows DLLs. Fixed up libeay.num for new functions.
7620 *) Make `openssl version' output lines consistent.
7621 [Ralf S. Engelschall]
7623 *) Fix Win32 symbol export lists for BIO functions: Added
7624 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
7625 to ms/libeay{16,32}.def.
7626 [Ralf S. Engelschall]
7628 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
7629 fine under Unix and passes some trivial tests I've now added. But the
7630 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
7631 added to make sure no one expects that this stuff really works in the
7632 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
7633 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
7635 [Ralf S. Engelschall]
7637 *) Fix the generation of two part addresses in perl.
7638 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
7640 *) Add config entry for Linux on MIPS.
7641 [John Tobey <jtobey@channel1.com>]
7643 *) Make links whenever Configure is run, unless we are on Windoze.
7646 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
7647 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
7651 *) Add a useful kludge to allow package maintainers to specify compiler and
7652 other platforms details on the command line without having to patch the
7653 Configure script everytime: One now can use ``perl Configure
7654 <id>:<details>'', i.e. platform ids are allowed to have details appended
7655 to them (seperated by colons). This is treated as there would be a static
7656 pre-configured entry in Configure's %table under key <id> with value
7657 <details> and ``perl Configure <id>'' is called. So, when you want to
7658 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
7659 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
7660 now, which overrides the FreeBSD-elf entry on-the-fly.
7661 [Ralf S. Engelschall]
7663 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
7666 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
7667 on the `perl Configure ...' command line. This way one can compile
7668 OpenSSL libraries with Position Independent Code (PIC) which is needed
7669 for linking it into DSOs.
7670 [Ralf S. Engelschall]
7672 *) Remarkably, export ciphers were totally broken and no-one had noticed!
7676 *) Cleaned up the LICENSE document: The official contact for any license
7677 questions now is the OpenSSL core team under openssl-core@openssl.org.
7678 And add a paragraph about the dual-license situation to make sure people
7679 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
7680 to the OpenSSL toolkit.
7681 [Ralf S. Engelschall]
7683 *) General source tree makefile cleanups: Made `making xxx in yyy...'
7684 display consistent in the source tree and replaced `/bin/rm' by `rm'.
7685 Additonally cleaned up the `make links' target: Remove unnecessary
7686 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
7687 to speed processing and no longer clutter the display with confusing
7688 stuff. Instead only the actually done links are displayed.
7689 [Ralf S. Engelschall]
7691 *) Permit null encryption ciphersuites, used for authentication only. It used
7692 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
7693 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
7697 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
7698 signed attributes when verifying signatures (this would break them),
7699 the detached data encoding was wrong and public keys obtained using
7700 X509_get_pubkey() weren't freed.
7703 *) Add text documentation for the BUFFER functions. Also added a work around
7704 to a Win95 console bug. This was triggered by the password read stuff: the
7705 last character typed gets carried over to the next fread(). If you were
7706 generating a new cert request using 'req' for example then the last
7707 character of the passphrase would be CR which would then enter the first
7711 *) Added the new `Includes OpenSSL Cryptography Software' button as
7712 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
7713 button and can be used by applications based on OpenSSL to show the
7714 relationship to the OpenSSL project.
7715 [Ralf S. Engelschall]
7717 *) Remove confusing variables in function signatures in files
7718 ssl/ssl_lib.c and ssl/ssl.h.
7719 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7721 *) Don't install bss_file.c under PREFIX/include/
7722 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7724 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
7725 functions that return function pointers and has support for NT specific
7726 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
7727 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
7728 unsigned to signed types: this was killing the Win32 compile.
7731 *) Add new certificate file to stack functions,
7732 SSL_add_dir_cert_subjects_to_stack() and
7733 SSL_add_file_cert_subjects_to_stack(). These largely supplant
7734 SSL_load_client_CA_file(), and can be used to add multiple certs easily
7735 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
7736 This means that Apache-SSL and similar packages don't have to mess around
7737 to add as many CAs as they want to the preferred list.
7740 *) Experiment with doxygen documentation. Currently only partially applied to
7742 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
7743 openssl.doxy as the configuration file.
7746 *) Get rid of remaining C++-style comments which strict C compilers hate.
7747 [Ralf S. Engelschall, pointed out by Carlos Amengual]
7749 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
7750 compiled in by default: it has problems with large keys.
7753 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
7754 DH private keys and/or callback functions which directly correspond to
7755 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
7756 is needed for applications which have to configure certificates on a
7757 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
7759 For the RSA certificate situation is makes no difference, but
7760 for the DSA certificate situation this fixes the "no shared cipher"
7761 problem where the OpenSSL cipher selection procedure failed because the
7762 temporary keys were not overtaken from the context and the API provided
7763 no way to reconfigure them.
7764 The new functions now let applications reconfigure the stuff and they
7765 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
7766 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
7767 non-public-API function ssl_cert_instantiate() is used as a helper
7768 function and also to reduce code redundancy inside ssl_rsa.c.
7769 [Ralf S. Engelschall]
7771 *) Move s_server -dcert and -dkey options out of the undocumented feature
7772 area because they are useful for the DSA situation and should be
7773 recognized by the users.
7774 [Ralf S. Engelschall]
7776 *) Fix the cipher decision scheme for export ciphers: the export bits are
7777 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
7778 SSL_EXP_MASK. So, the original variable has to be used instead of the
7779 already masked variable.
7780 [Richard Levitte <levitte@stacken.kth.se>]
7782 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
7783 [Richard Levitte <levitte@stacken.kth.se>]
7785 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
7786 from `int' to `unsigned int' because it's a length and initialized by
7787 EVP_DigestFinal() which expects an `unsigned int *'.
7788 [Richard Levitte <levitte@stacken.kth.se>]
7790 *) Don't hard-code path to Perl interpreter on shebang line of Configure
7791 script. Instead use the usual Shell->Perl transition trick.
7792 [Ralf S. Engelschall]
7794 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
7795 (in addition to RSA certificates) to match the behaviour of `openssl dsa
7796 -noout -modulus' as it's already the case for `openssl rsa -noout
7797 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
7798 currently the public key is printed (a decision which was already done by
7799 `openssl dsa -modulus' in the past) which serves a similar purpose.
7800 Additionally the NO_RSA no longer completely removes the whole -modulus
7801 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
7803 [Ralf S. Engelschall]
7805 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
7806 BIO. See the source (crypto/evp/bio_ok.c) for more info.
7807 [Arne Ansper <arne@ats.cyber.ee>]
7809 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
7810 to be added. Now both 'req' and 'ca' can use new objects defined in the
7814 *) Add cool BIO that does syslog (or event log on NT).
7815 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
7817 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
7818 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
7819 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
7820 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
7823 *) Add preliminary config info for new extension code.
7826 *) Make RSA_NO_PADDING really use no padding.
7827 [Ulf Moeller <ulf@fitug.de>]
7829 *) Generate errors when private/public key check is done.
7832 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
7833 for some CRL extensions and new objects added.
7836 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
7837 key usage extension and fuller support for authority key id.
7840 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
7841 padding method for RSA, which is recommended for new applications in PKCS
7842 #1 v2.0 (RFC 2437, October 1998).
7843 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
7844 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
7845 against Bleichbacher's attack on RSA.
7846 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
7849 *) Updates to the new SSL compression code
7850 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7852 *) Fix so that the version number in the master secret, when passed
7853 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
7854 (because the server will not accept higher), that the version number
7855 is 0x03,0x01, not 0x03,0x00
7856 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7858 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
7859 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
7860 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
7863 *) Support for RAW extensions where an arbitrary extension can be
7864 created by including its DER encoding. See apps/openssl.cnf for
7868 *) Make sure latest Perl versions don't interpret some generated C array
7869 code as Perl array code in the crypto/err/err_genc.pl script.
7870 [Lars Weber <3weber@informatik.uni-hamburg.de>]
7872 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
7873 not many people have the assembler. Various Win32 compilation fixes and
7874 update to the INSTALL.W32 file with (hopefully) more accurate Win32
7878 *) Modify configure script 'Configure' to automatically create crypto/date.h
7879 file under Win32 and also build pem.h from pem.org. New script
7880 util/mkfiles.pl to create the MINFO file on environments that can't do a
7881 'make files': perl util/mkfiles.pl >MINFO should work.
7884 *) Major rework of DES function declarations, in the pursuit of correctness
7885 and purity. As a result, many evil casts evaporated, and some weirdness,
7886 too. You may find this causes warnings in your code. Zapping your evil
7887 casts will probably fix them. Mostly.
7890 *) Fix for a typo in asn1.h. Bug fix to object creation script
7891 obj_dat.pl. It considered a zero in an object definition to mean
7892 "end of object": none of the objects in objects.h have any zeros
7893 so it wasn't spotted.
7894 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
7896 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
7897 Masking (CBCM). In the absence of test vectors, the best I have been able
7898 to do is check that the decrypt undoes the encrypt, so far. Send me test
7899 vectors if you have them.
7902 *) Correct calculation of key length for export ciphers (too much space was
7903 allocated for null ciphers). This has not been tested!
7906 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
7907 message is now correct (it understands "crypto" and "ssl" on its
7908 command line). There is also now an "update" option. This will update
7909 the util/ssleay.num and util/libeay.num files with any new functions.
7911 perl util/mkdef.pl crypto ssl update
7912 it will update them.
7915 *) Overhauled the Perl interface (perl/*):
7916 - ported BN stuff to OpenSSL's different BN library
7917 - made the perl/ source tree CVS-aware
7918 - renamed the package from SSLeay to OpenSSL (the files still contain
7919 their history because I've copied them in the repository)
7920 - removed obsolete files (the test scripts will be replaced
7921 by better Test::Harness variants in the future)
7922 [Ralf S. Engelschall]
7924 *) First cut for a very conservative source tree cleanup:
7925 1. merge various obsolete readme texts into doc/ssleay.txt
7926 where we collect the old documents and readme texts.
7927 2. remove the first part of files where I'm already sure that we no
7928 longer need them because of three reasons: either they are just temporary
7929 files which were left by Eric or they are preserved original files where
7930 I've verified that the diff is also available in the CVS via "cvs diff
7931 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
7932 the crypto/md/ stuff).
7933 [Ralf S. Engelschall]
7935 *) More extension code. Incomplete support for subject and issuer alt
7936 name, issuer and authority key id. Change the i2v function parameters
7937 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
7938 what that's for :-) Fix to ASN1 macro which messed up
7939 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
7942 *) Preliminary support for ENUMERATED type. This is largely copied from the
7946 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
7947 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7949 *) Make sure `make rehash' target really finds the `openssl' program.
7950 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7952 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
7953 like to hear about it if this slows down other processors.
7956 *) Add CygWin32 platform information to Configure script.
7957 [Alan Batie <batie@aahz.jf.intel.com>]
7959 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
7960 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
7962 *) New program nseq to manipulate netscape certificate sequences
7965 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
7969 *) Fixes to BN code. Previously the default was to define BN_RECURSION
7970 but the BN code had some problems that would cause failures when
7971 doing certificate verification and some other functions.
7972 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7974 *) Add ASN1 and PEM code to support netscape certificate sequences.
7977 *) Add ASN1 and PEM code to support netscape certificate sequences.
7980 *) Add several PKIX and private extended key usage OIDs.
7983 *) Modify the 'ca' program to handle the new extension code. Modify
7984 openssl.cnf for new extension format, add comments.
7987 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
7988 and add a sample to openssl.cnf so req -x509 now adds appropriate
7992 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
7993 error code, add initial support to X509_print() and x509 application.
7996 *) Takes a deep breath and start addding X509 V3 extension support code. Add
7997 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
7998 stuff is currently isolated and isn't even compiled yet.
8001 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
8002 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
8003 Removed the versions check from X509 routines when loading extensions:
8004 this allows certain broken certificates that don't set the version
8005 properly to be processed.
8008 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
8009 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
8010 can still be regenerated with "make depend".
8013 *) Spelling mistake in C version of CAST-128.
8014 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
8016 *) Changes to the error generation code. The perl script err-code.pl
8017 now reads in the old error codes and retains the old numbers, only
8018 adding new ones if necessary. It also only changes the .err files if new
8019 codes are added. The makefiles have been modified to only insert errors
8020 when needed (to avoid needlessly modifying header files). This is done
8021 by only inserting errors if the .err file is newer than the auto generated
8022 C file. To rebuild all the error codes from scratch (the old behaviour)
8023 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
8024 or delete all the .err files.
8027 *) CAST-128 was incorrectly implemented for short keys. The C version has
8028 been fixed, but is untested. The assembler versions are also fixed, but
8029 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
8030 to regenerate it if needed.
8031 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
8032 Hagino <itojun@kame.net>]
8034 *) File was opened incorrectly in randfile.c.
8035 [Ulf Möller <ulf@fitug.de>]
8037 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
8038 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
8039 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
8040 al: it's just almost always a UTCTime. Note this patch adds new error
8041 codes so do a "make errors" if there are problems.
8044 *) Correct Linux 1 recognition in config.
8045 [Ulf Möller <ulf@fitug.de>]
8047 *) Remove pointless MD5 hash when using DSA keys in ca.
8048 [Anonymous <nobody@replay.com>]
8050 *) Generate an error if given an empty string as a cert directory. Also
8051 generate an error if handed NULL (previously returned 0 to indicate an
8052 error, but didn't set one).
8053 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
8055 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
8058 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
8059 parameters. This was causing a warning which killed off the Win32 compile.
8062 *) Remove C++ style comments from crypto/bn/bn_local.h.
8063 [Neil Costigan <neil.costigan@celocom.com>]
8065 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
8066 based on a text string, looking up short and long names and finally
8067 "dot" format. The "dot" format stuff didn't work. Added new function
8068 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
8069 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
8070 OID is not part of the table.
8073 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
8074 X509_LOOKUP_by_alias().
8077 *) Sort openssl functions by name.
8080 *) Get the gendsa program working (hopefully) and add it to app list. Remove
8081 encryption from sample DSA keys (in case anyone is interested the password
8085 *) Make _all_ *_free functions accept a NULL pointer.
8086 [Frans Heymans <fheymans@isaserver.be>]
8088 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
8090 [Anonymous <nobody@replay.com>]
8092 *) s_server should send the CAfile as acceptable CAs, not its own cert.
8093 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8095 *) Don't blow it for numeric -newkey arguments to apps/req.
8096 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8098 *) Temp key "for export" tests were wrong in s3_srvr.c.
8099 [Anonymous <nobody@replay.com>]
8101 *) Add prototype for temp key callback functions
8102 SSL_CTX_set_tmp_{rsa,dh}_callback().
8105 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
8106 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
8109 *) X509_name_add_entry() freed the wrong thing after an error.
8110 [Arne Ansper <arne@ats.cyber.ee>]
8112 *) rsa_eay.c would attempt to free a NULL context.
8113 [Arne Ansper <arne@ats.cyber.ee>]
8115 *) BIO_s_socket() had a broken should_retry() on Windoze.
8116 [Arne Ansper <arne@ats.cyber.ee>]
8118 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
8119 [Arne Ansper <arne@ats.cyber.ee>]
8121 *) Make sure the already existing X509_STORE->depth variable is initialized
8122 in X509_STORE_new(), but document the fact that this variable is still
8123 unused in the certificate verification process.
8124 [Ralf S. Engelschall]
8126 *) Fix the various library and apps files to free up pkeys obtained from
8127 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
8130 *) Fix reference counting in X509_PUBKEY_get(). This makes
8131 demos/maurice/example2.c work, amongst others, probably.
8132 [Steve Henson and Ben Laurie]
8134 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
8135 `openssl' and second, the shortcut symlinks for the `openssl <command>'
8136 are no longer created. This way we have a single and consistent command
8137 line interface `openssl <command>', similar to `cvs <command>'.
8138 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
8140 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
8141 BIT STRING wrapper always have zero unused bits.
8144 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
8147 *) Make the top-level INSTALL documentation easier to understand.
8150 *) Makefiles updated to exit if an error occurs in a sub-directory
8151 make (including if user presses ^C) [Paul Sutton]
8153 *) Make Montgomery context stuff explicit in RSA data structure.
8156 *) Fix build order of pem and err to allow for generated pem.h.
8159 *) Fix renumbering bug in X509_NAME_delete_entry().
8162 *) Enhanced the err-ins.pl script so it makes the error library number
8163 global and can add a library name. This is needed for external ASN1 and
8164 other error libraries.
8167 *) Fixed sk_insert which never worked properly.
8170 *) Fix ASN1 macros so they can handle indefinite length construted
8171 EXPLICIT tags. Some non standard certificates use these: they can now
8175 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
8176 into a single doc/ssleay.txt bundle. This way the information is still
8177 preserved but no longer messes up this directory. Now it's new room for
8178 the new set of documenation files.
8179 [Ralf S. Engelschall]
8181 *) SETs were incorrectly DER encoded. This was a major pain, because they
8182 shared code with SEQUENCEs, which aren't coded the same. This means that
8183 almost everything to do with SETs or SEQUENCEs has either changed name or
8184 number of arguments.
8185 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
8187 *) Fix test data to work with the above.
8190 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
8191 was already fixed by Eric for 0.9.1 it seems.
8192 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
8194 *) Autodetect FreeBSD3.
8197 *) Fix various bugs in Configure. This affects the following platforms:
8201 unixware-2.0-pentium
8205 *) Eliminate generated files from CVS. Reorder tests to regenerate files
8206 before they are needed.
8209 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
8213 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
8215 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
8216 changed SSLeay to OpenSSL in version strings.
8217 [Ralf S. Engelschall]
8219 *) Some fixups to the top-level documents.
8222 *) Fixed the nasty bug where rsaref.h was not found under compile-time
8223 because the symlink to include/ was missing.
8224 [Ralf S. Engelschall]
8226 *) Incorporated the popular no-RSA/DSA-only patches
8227 which allow to compile a RSA-free SSLeay.
8228 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
8230 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
8231 when "ssleay" is still not found.
8232 [Ralf S. Engelschall]
8234 *) Added more platforms to Configure: Cray T3E, HPUX 11,
8235 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
8237 *) Updated the README file.
8238 [Ralf S. Engelschall]
8240 *) Added various .cvsignore files in the CVS repository subdirs
8241 to make a "cvs update" really silent.
8242 [Ralf S. Engelschall]
8244 *) Recompiled the error-definition header files and added
8245 missing symbols to the Win32 linker tables.
8246 [Ralf S. Engelschall]
8248 *) Cleaned up the top-level documents;
8249 o new files: CHANGES and LICENSE
8250 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
8251 o merged COPYRIGHT into LICENSE
8252 o removed obsolete TODO file
8253 o renamed MICROSOFT to INSTALL.W32
8254 [Ralf S. Engelschall]
8256 *) Removed dummy files from the 0.9.1b source tree:
8257 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
8258 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
8259 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
8260 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
8261 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
8262 [Ralf S. Engelschall]
8264 *) Added various platform portability fixes.
8267 *) The Genesis of the OpenSSL rpject:
8268 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
8269 Young and Tim J. Hudson created while they were working for C2Net until
8271 [The OpenSSL Project]
8274 Changes between 0.9.0b and 0.9.1b [not released]
8276 *) Updated a few CA certificates under certs/
8279 *) Changed some BIGNUM api stuff.
8282 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
8283 DGUX x86, Linux Alpha, etc.
8286 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
8287 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
8291 *) Add -strparse option to asn1pars program which parses nested
8293 [Dr Stephen Henson <shenson@bigfoot.com>]
8295 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
8298 *) DSA fix for "ca" program.
8301 *) Added "-genkey" option to "dsaparam" program.
8304 *) Added RIPE MD160 (rmd160) message digest.
8307 *) Added -a (all) option to "ssleay version" command.
8310 *) Added PLATFORM define which is the id given to Configure.
8313 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
8316 *) Extended the ASN.1 parser routines.
8319 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
8322 *) Added a BN_CTX to the BN library.
8325 *) Fixed the weak key values in DES library
8328 *) Changed API in EVP library for cipher aliases.
8331 *) Added support for RC2/64bit cipher.
8334 *) Converted the lhash library to the crypto/mem.c functions.
8337 *) Added more recognized ASN.1 object ids.
8340 *) Added more RSA padding checks for SSL/TLS.
8343 *) Added BIO proxy/filter functionality.
8346 *) Added extra_certs to SSL_CTX which can be used
8347 send extra CA certificates to the client in the CA cert chain sending
8348 process. It can be configured with SSL_CTX_add_extra_chain_cert().
8351 *) Now Fortezza is denied in the authentication phase because
8352 this is key exchange mechanism is not supported by SSLeay at all.
8355 *) Additional PKCS1 checks.
8358 *) Support the string "TLSv1" for all TLS v1 ciphers.
8361 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
8362 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
8365 *) Fixed a few memory leaks.
8368 *) Fixed various code and comment typos.
8371 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
8372 bytes sent in the client random.
8373 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob