5 Changes between 0.9.8k and 0.9.8l [xx XXX xxxx]
8 *) The functions ENGINE_ctrl(), OPENSSL_isservice(),
9 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
10 fixes for a few places where the return code is not checked
12 [Julia Lawall <julia@diku.dk>]
14 *) Add --strict-warnings option to Configure script to include devteam
15 warnings in other configurations.
18 *) Add support for --libdir option and LIBDIR variable in makefiles. This
19 makes it possible to install openssl libraries in locations which
20 have names other than "lib", for example "/usr/lib64" which some
22 [Steve Henson, based on patch from Jeremy Utley]
24 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
25 X690 8.9.12 and can produce some misleading textual output of OIDs.
26 [Steve Henson, reported by Dan Kaminsky]
28 *) Delete MD2 from algorithm tables. This follows the recommendation in
29 several standards that it is not used in new applications due to
30 several cryptographic weaknesses. For binary compatibility reasons
31 the MD2 API is still compiled in by default.
34 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
38 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
39 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
41 [Guenter <lists@gknw.net>]
43 *) Fix the server certificate chain building code to use X509_verify_cert(),
44 it used to have an ad-hoc builder which was unable to cope with anything
45 other than a simple chain.
46 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
48 *) Don't check self signed certificate signatures in X509_verify_cert()
49 by default (a flag can override this): it just wastes time without
50 adding any security. As a useful side effect self signed root CAs
51 with non-FIPS digests are now usable in FIPS mode.
54 *) In dtls1_process_out_of_seq_message() the check if the current message
55 is already buffered was missing. For every new message was memory
56 allocated, allowing an attacker to perform an denial of service attack
57 with sending out of seq handshake messages until there is no memory
58 left. Additionally every future messege was buffered, even if the
59 sequence number made no sense and would be part of another handshake.
60 So only messages with sequence numbers less than 10 in advance will be
61 buffered. (CVE-2009-1378)
62 [Robin Seggelmann, discovered by Daniel Mentz]
64 *) Records are buffered if they arrive with a future epoch to be
65 processed after finishing the corresponding handshake. There is
66 currently no limitation to this buffer allowing an attacker to perform
67 a DOS attack with sending records with future epochs until there is no
68 memory left. This patch adds the pqueue_size() function to detemine
69 the size of a buffer and limits the record buffer to 100 entries.
71 [Robin Seggelmann, discovered by Daniel Mentz]
73 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
74 parent structure is freed. (CVE-2009-1379)
77 *) Handle non-blocking I/O properly in SSL_shutdown() call.
78 [Darryl Miles <darryl-mailinglists@netbauds.net>]
81 [Ilya O. <vrghost@gmail.com>]
83 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
85 *) Don't set val to NULL when freeing up structures, it is freed up by
86 underlying code. If sizeof(void *) > sizeof(long) this can result in
87 zeroing past the valid field. (CVE-2009-0789)
88 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
90 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
91 checked correctly. This would allow some invalid signed attributes to
92 appear to verify correctly. (CVE-2009-0591)
93 [Ivan Nestlerode <inestlerode@us.ibm.com>]
95 *) Reject UniversalString and BMPString types with invalid lengths. This
96 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
97 a legal length. (CVE-2009-0590)
100 *) Set S/MIME signing as the default purpose rather than setting it
101 unconditionally. This allows applications to override it at the store
105 *) Permit restricted recursion of ASN1 strings. This is needed in practice
106 to handle some structures.
109 *) Improve efficiency of mem_gets: don't search whole buffer each time
111 [Jeremy Shapiro <jnshapir@us.ibm.com>]
113 *) New -hex option for openssl rand.
116 *) Print out UTF8String and NumericString when parsing ASN1.
119 *) Support NumericString type for name components.
122 *) Allow CC in the environment to override the automatically chosen
123 compiler. Note that nothing is done to ensure flags work with the
127 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
129 *) Properly check EVP_VerifyFinal() and similar return values
131 [Ben Laurie, Bodo Moeller, Google Security Team]
133 *) Enable TLS extensions by default.
136 *) Allow the CHIL engine to be loaded, whether the application is
137 multithreaded or not. (This does not release the developer from the
138 obligation to set up the dynamic locking callbacks.)
139 [Sander Temme <sander@temme.net>]
141 *) Use correct exit code if there is an error in dgst command.
142 [Steve Henson; problem pointed out by Roland Dirlewanger]
144 *) Tweak Configure so that you need to say "experimental-jpake" to enable
145 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
148 *) Add experimental JPAKE support, including demo authentication in
149 s_client and s_server.
152 *) Set the comparison function in v3_addr_canonize().
153 [Rob Austein <sra@hactrn.net>]
155 *) Add support for XMPP STARTTLS in s_client.
156 [Philip Paeps <philip@freebsd.org>]
158 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
159 to ensure that even with this option, only ciphersuites in the
160 server's preference list will be accepted. (Note that the option
161 applies only when resuming a session, so the earlier behavior was
162 just about the algorithm choice for symmetric cryptography.)
165 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
167 *) Fix NULL pointer dereference if a DTLS server recieved
168 ChangeCipherSpec as first record (CVE-2009-1386)
169 [Bodo Moeller, discovered by Alex Lam]
171 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
172 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
175 *) The fix in 0.9.8c that supposedly got rid of unsafe
176 double-checked locking was incomplete for RSA blinding,
177 addressing just one layer of what turns out to have been
178 doubly unsafe triple-checked locking.
180 So now fix this for real by retiring the MONT_HELPER macro
181 in crypto/rsa/rsa_eay.c.
183 [Bodo Moeller; problem pointed out by Marius Schilder]
185 *) Various precautionary measures:
187 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
189 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
190 (NB: This would require knowledge of the secret session ticket key
191 to exploit, in which case you'd be SOL either way.)
193 - Change bn_nist.c so that it will properly handle input BIGNUMs
194 outside the expected range.
196 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
199 [Neel Mehta, Bodo Moeller]
201 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
202 the load fails. Useful for distros.
203 [Ben Laurie and the FreeBSD team]
205 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
208 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
211 *) Expand ENGINE to support engine supplied SSL client certificate functions.
213 This work was sponsored by Logica.
216 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
217 keystores. Support for SSL/TLS client authentication too.
218 Not compiled unless enable-capieng specified to Configure.
220 This work was sponsored by Logica.
223 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
224 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
225 attribute creation routines such as certifcate requests and PKCS#12
229 Changes between 0.9.8g and 0.9.8h [28 May 2008]
231 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
232 handshake which could lead to a cilent crash as found using the
233 Codenomicon TLS test suite (CVE-2008-1672)
234 [Steve Henson, Mark Cox]
236 *) Fix double free in TLS server name extensions which could lead to
237 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
240 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
242 Clear the error queue to ensure that error entries left from
243 older function calls do not interfere with the correct operation.
244 [Lutz Jaenicke, Erik de Castro Lopo]
246 *) Remove root CA certificates of commercial CAs:
248 The OpenSSL project does not recommend any specific CA and does not
249 have any policy with respect to including or excluding any CA.
250 Therefore it does not make any sense to ship an arbitrary selection
251 of root CA certificates with the OpenSSL software.
254 *) RSA OAEP patches to fix two separate invalid memory reads.
255 The first one involves inputs when 'lzero' is greater than
256 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
257 before the beginning of from). The second one involves inputs where
258 the 'db' section contains nothing but zeroes (there is a one-byte
259 invalid read after the end of 'db').
260 [Ivan Nestlerode <inestlerode@us.ibm.com>]
262 *) Partial backport from 0.9.9-dev:
264 Introduce bn_mul_mont (dedicated Montgomery multiplication
265 procedure) as a candidate for BIGNUM assembler implementation.
266 While 0.9.9-dev uses assembler for various architectures, only
267 x86_64 is available by default here in the 0.9.8 branch, and
268 32-bit x86 is available through a compile-time setting.
270 To try the 32-bit x86 assembler implementation, use Configure
271 option "enable-montasm" (which exists only for this backport).
273 As "enable-montasm" for 32-bit x86 disclaims code stability
274 anyway, in this constellation we activate additional code
275 backported from 0.9.9-dev for further performance improvements,
276 namely BN_from_montgomery_word. (To enable this otherwise,
277 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
279 [Andy Polyakov (backport partially by Bodo Moeller)]
281 *) Add TLS session ticket callback. This allows an application to set
282 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
283 values. This is useful for key rollover for example where several key
284 sets may exist with different names.
287 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
288 This was broken until now in 0.9.8 releases, such that the only way
289 a registered ENGINE could be used (assuming it initialises
290 successfully on the host) was to explicitly set it as the default
291 for the relevant algorithms. This is in contradiction with 0.9.7
292 behaviour and the documentation. With this fix, when an ENGINE is
293 registered into a given algorithm's table of implementations, the
294 'uptodate' flag is reset so that auto-discovery will be used next
295 time a new context for that algorithm attempts to select an
297 [Ian Lister (tweaked by Geoff Thorpe)]
299 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
300 implemention in the following ways:
302 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
305 Lack of BER streaming support means one pass streaming processing is
306 only supported if data is detached: setting the streaming flag is
307 ignored for embedded content.
309 CMS support is disabled by default and must be explicitly enabled
310 with the enable-cms configuration option.
313 *) Update the GMP engine glue to do direct copies between BIGNUM and
314 mpz_t when openssl and GMP use the same limb size. Otherwise the
315 existing "conversion via a text string export" trick is still used.
316 [Paul Sheer <paulsheer@gmail.com>]
318 *) Zlib compression BIO. This is a filter BIO which compressed and
319 uncompresses any data passed through it.
322 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
323 RFC3394 compatible AES key wrapping.
326 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
327 sets string data without copying. X509_ALGOR_set0() and
328 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
329 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
330 from an X509_ATTRIBUTE structure optionally checking it occurs only
331 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
335 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
336 to get the expected BN_FLG_CONSTTIME behavior.
337 [Bodo Moeller (Google)]
341 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
342 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
343 - added some more tests to do_tests.pl
344 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
345 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
346 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
347 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
348 - various changes to netware.pl to enable gcc-cross builds on Win32
350 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
351 - various changes to fix missing prototype warnings
352 - fixed x86nasm.pl to create correct asm files for NASM COFF output
353 - added AES, WHIRLPOOL and CPUID assembler code to build files
354 - added missing AES assembler make rules to mk1mf.pl
355 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
356 [Guenter Knauf <eflash@gmx.net>]
358 *) Implement certificate status request TLS extension defined in RFC3546.
359 A client can set the appropriate parameters and receive the encoded
360 OCSP response via a callback. A server can query the supplied parameters
361 and set the encoded OCSP response in the callback. Add simplified examples
362 to s_client and s_server.
365 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
368 + Binary incompatibility of ssl_ctx_st structure
369 + DTLS interoperation with non-compliant servers
370 + Don't call get_session_cb() without proposed session
371 + Fix ia64 assembler code
372 [Andy Polyakov, Steve Henson]
374 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
376 *) DTLS Handshake overhaul. There were longstanding issues with
377 OpenSSL DTLS implementation, which were making it impossible for
378 RFC 4347 compliant client to communicate with OpenSSL server.
379 Unfortunately just fixing these incompatibilities would "cut off"
380 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
381 server keeps tolerating non RFC compliant syntax. The opposite is
382 not true, 0.9.8f client can not communicate with earlier server.
383 This update even addresses CVE-2007-4995.
386 *) Changes to avoid need for function casts in OpenSSL: some compilers
387 (gcc 4.2 and later) reject their use.
388 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
391 *) Add RFC4507 support to OpenSSL. This includes the corrections in
392 RFC4507bis. The encrypted ticket format is an encrypted encoded
393 SSL_SESSION structure, that way new session features are automatically
396 If a client application caches session in an SSL_SESSION structure
397 support is transparent because tickets are now stored in the encoded
400 The SSL_CTX structure automatically generates keys for ticket
401 protection in servers so again support should be possible
402 with no application modification.
404 If a client or server wishes to disable RFC4507 support then the option
405 SSL_OP_NO_TICKET can be set.
407 Add a TLS extension debugging callback to allow the contents of any client
408 or server extensions to be examined.
410 This work was sponsored by Google.
413 *) Add initial support for TLS extensions, specifically for the server_name
414 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
415 have new members for a host name. The SSL data structure has an
416 additional member SSL_CTX *initial_ctx so that new sessions can be
417 stored in that context to allow for session resumption, even after the
418 SSL has been switched to a new SSL_CTX in reaction to a client's
419 server_name extension.
421 New functions (subject to change):
424 SSL_get_servername_type()
427 New CTRL codes and macros (subject to change):
429 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
430 - SSL_CTX_set_tlsext_servername_callback()
431 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
432 - SSL_CTX_set_tlsext_servername_arg()
433 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
435 openssl s_client has a new '-servername ...' option.
437 openssl s_server has new options '-servername_host ...', '-cert2 ...',
438 '-key2 ...', '-servername_fatal' (subject to change). This allows
439 testing the HostName extension for a specific single host name ('-cert'
440 and '-key' remain fallbacks for handshakes without HostName
441 negotiation). If the unrecogninzed_name alert has to be sent, this by
442 default is a warning; it becomes fatal with the '-servername_fatal'
445 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
447 *) Add AES and SSE2 assembly language support to VC++ build.
450 *) Mitigate attack on final subtraction in Montgomery reduction.
453 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
454 (which previously caused an internal error).
457 *) Squeeze another 10% out of IGE mode when in != out.
460 *) AES IGE mode speedup.
461 [Dean Gaudet (Google)]
463 *) Add the Korean symmetric 128-bit cipher SEED (see
464 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
465 add SEED ciphersuites from RFC 4162:
467 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
468 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
469 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
470 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
472 To minimize changes between patchlevels in the OpenSSL 0.9.8
473 series, SEED remains excluded from compilation unless OpenSSL
474 is configured with 'enable-seed'.
477 *) Mitigate branch prediction attacks, which can be practical if a
478 single processor is shared, allowing a spy process to extract
479 information. For detailed background information, see
480 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
481 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
482 and Necessary Software Countermeasures"). The core of the change
483 are new versions BN_div_no_branch() and
484 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
485 respectively, which are slower, but avoid the security-relevant
486 conditional branches. These are automatically called by BN_div()
487 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
488 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
489 remove a conditional branch.
491 BN_FLG_CONSTTIME is the new name for the previous
492 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
493 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
494 in the exponent causes BN_mod_exp_mont() to use the alternative
495 implementation in BN_mod_exp_mont_consttime().) The old name
496 remains as a deprecated alias.
498 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
499 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
500 constant-time implementations for more than just exponentiation.
501 Here too the old name is kept as a deprecated alias.
503 BN_BLINDING_new() will now use BN_dup() for the modulus so that
504 the BN_BLINDING structure gets an independent copy of the
505 modulus. This means that the previous "BIGNUM *m" argument to
506 BN_BLINDING_new() and to BN_BLINDING_create_param() now
507 essentially becomes "const BIGNUM *m", although we can't actually
508 change this in the header file before 0.9.9. It allows
509 RSA_setup_blinding() to use BN_with_flags() on the modulus to
510 enable BN_FLG_CONSTTIME.
512 [Matthew D Wood (Intel Corp)]
514 *) In the SSL/TLS server implementation, be strict about session ID
515 context matching (which matters if an application uses a single
516 external cache for different purposes). Previously,
517 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
518 set. This did ensure strict client verification, but meant that,
519 with applications using a single external cache for quite
520 different requirements, clients could circumvent ciphersuite
521 restrictions for a given session ID context by starting a session
522 in a different context.
525 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
526 a ciphersuite string such as "DEFAULT:RSA" cannot enable
527 authentication-only ciphersuites.
530 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
531 not complete and could lead to a possible single byte overflow
532 (CVE-2007-5135) [Ben Laurie]
534 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
536 *) Since AES128 and AES256 (and similarly Camellia128 and
537 Camellia256) share a single mask bit in the logic of
538 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
539 kludge to work properly if AES128 is available and AES256 isn't
540 (or if Camellia128 is available and Camellia256 isn't).
543 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
544 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
545 When a point or a seed is encoded in a BIT STRING, we need to
546 prevent the removal of trailing zero bits to get the proper DER
547 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
548 of a NamedBitList, for which trailing 0 bits need to be removed.)
551 *) Have SSL/TLS server implementation tolerate "mismatched" record
552 protocol version while receiving ClientHello even if the
553 ClientHello is fragmented. (The server can't insist on the
554 particular protocol version it has chosen before the ServerHello
555 message has informed the client about his choice.)
558 *) Add RFC 3779 support.
559 [Rob Austein for ARIN, Ben Laurie]
561 *) Load error codes if they are not already present instead of using a
562 static variable. This allows them to be cleanly unloaded and reloaded.
563 Improve header file function name parsing.
566 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
567 or CAPABILITY handshake as required by RFCs.
570 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
572 *) Introduce limits to prevent malicious keys being able to
573 cause a denial of service. (CVE-2006-2940)
574 [Steve Henson, Bodo Moeller]
576 *) Fix ASN.1 parsing of certain invalid structures that can result
577 in a denial of service. (CVE-2006-2937) [Steve Henson]
579 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
580 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
582 *) Fix SSL client code which could crash if connecting to a
583 malicious SSLv2 server. (CVE-2006-4343)
584 [Tavis Ormandy and Will Drewry, Google Security Team]
586 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
587 match only those. Before that, "AES256-SHA" would be interpreted
588 as a pattern and match "AES128-SHA" too (since AES128-SHA got
589 the same strength classification in 0.9.7h) as we currently only
590 have a single AES bit in the ciphersuite description bitmap.
591 That change, however, also applied to ciphersuite strings such as
592 "RC4-MD5" that intentionally matched multiple ciphersuites --
593 namely, SSL 2.0 ciphersuites in addition to the more common ones
594 from SSL 3.0/TLS 1.0.
596 So we change the selection algorithm again: Naming an explicit
597 ciphersuite selects this one ciphersuite, and any other similar
598 ciphersuite (same bitmap) from *other* protocol versions.
599 Thus, "RC4-MD5" again will properly select both the SSL 2.0
600 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
602 Since SSL 2.0 does not have any ciphersuites for which the
603 128/256 bit distinction would be relevant, this works for now.
604 The proper fix will be to use different bits for AES128 and
605 AES256, which would have avoided the problems from the beginning;
606 however, bits are scarce, so we can only do this in a new release
607 (not just a patchlevel) when we can change the SSL_CIPHER
608 definition to split the single 'unsigned long mask' bitmap into
609 multiple values to extend the available space.
613 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
615 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
616 (CVE-2006-4339) [Ben Laurie and Google Security Team]
618 *) Add AES IGE and biIGE modes.
621 *) Change the Unix randomness entropy gathering to use poll() when
622 possible instead of select(), since the latter has some
623 undesirable limitations.
624 [Darryl Miles via Richard Levitte and Bodo Moeller]
626 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
627 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
628 cannot be implicitly activated as part of, e.g., the "AES" alias.
629 However, please upgrade to OpenSSL 0.9.9[-dev] for
630 non-experimental use of the ECC ciphersuites to get TLS extension
631 support, which is required for curve and point format negotiation
632 to avoid potential handshake problems.
635 *) Disable rogue ciphersuites:
637 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
638 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
639 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
641 The latter two were purportedly from
642 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
645 Also deactivate the remaining ciphersuites from
646 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
647 unofficial, and the ID has long expired.
650 *) Fix RSA blinding Heisenbug (problems sometimes occured on
651 dual-core machines) and other potential thread-safety issues.
654 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
655 versions), which is now available for royalty-free use
656 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
657 Also, add Camellia TLS ciphersuites from RFC 4132.
659 To minimize changes between patchlevels in the OpenSSL 0.9.8
660 series, Camellia remains excluded from compilation unless OpenSSL
661 is configured with 'enable-camellia'.
664 *) Disable the padding bug check when compression is in use. The padding
665 bug check assumes the first packet is of even length, this is not
666 necessarily true if compresssion is enabled and can result in false
667 positives causing handshake failure. The actual bug test is ancient
668 code so it is hoped that implementations will either have fixed it by
669 now or any which still have the bug do not support compression.
672 Changes between 0.9.8a and 0.9.8b [04 May 2006]
674 *) When applying a cipher rule check to see if string match is an explicit
675 cipher suite and only match that one cipher suite if it is.
678 *) Link in manifests for VC++ if needed.
679 [Austin Ziegler <halostatue@gmail.com>]
681 *) Update support for ECC-based TLS ciphersuites according to
682 draft-ietf-tls-ecc-12.txt with proposed changes (but without
683 TLS extensions, which are supported starting with the 0.9.9
684 branch, not in the OpenSSL 0.9.8 branch).
687 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
688 opaque EVP_CIPHER_CTX handling.
691 *) Fixes and enhancements to zlib compression code. We now only use
692 "zlib1.dll" and use the default __cdecl calling convention on Win32
693 to conform with the standards mentioned here:
694 http://www.zlib.net/DLL_FAQ.txt
695 Static zlib linking now works on Windows and the new --with-zlib-include
696 --with-zlib-lib options to Configure can be used to supply the location
697 of the headers and library. Gracefully handle case where zlib library
701 *) Several fixes and enhancements to the OID generation code. The old code
702 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
703 handle numbers larger than ULONG_MAX, truncated printing and had a
704 non standard OBJ_obj2txt() behaviour.
707 *) Add support for building of engines under engine/ as shared libraries
708 under VC++ build system.
711 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
712 Hopefully, we will not see any false combination of paths any more.
715 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
717 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
718 (part of SSL_OP_ALL). This option used to disable the
719 countermeasure against man-in-the-middle protocol-version
720 rollback in the SSL 2.0 server implementation, which is a bad
721 idea. (CVE-2005-2969)
723 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
724 for Information Security, National Institute of Advanced Industrial
725 Science and Technology [AIST], Japan)]
727 *) Add two function to clear and return the verify parameter flags.
730 *) Keep cipherlists sorted in the source instead of sorting them at
731 runtime, thus removing the need for a lock.
734 *) Avoid some small subgroup attacks in Diffie-Hellman.
735 [Nick Mathewson and Ben Laurie]
737 *) Add functions for well-known primes.
740 *) Extended Windows CE support.
741 [Satoshi Nakamura and Andy Polyakov]
743 *) Initialize SSL_METHOD structures at compile time instead of during
744 runtime, thus removing the need for a lock.
747 *) Make PKCS7_decrypt() work even if no certificate is supplied by
748 attempting to decrypt each encrypted key in turn. Add support to
752 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
754 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
757 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
760 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
761 key into the same file any more.
764 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
767 *) Add -utf8 command line and config file option to 'ca'.
768 [Stefan <stf@udoma.org]
770 *) Removed the macro des_crypt(), as it seems to conflict with some
771 libraries. Use DES_crypt().
774 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
775 involves renaming the source and generated shared-libs for
776 both. The engines will accept the corrected or legacy ids
777 ('ncipher' and '4758_cca' respectively) when binding. NB,
778 this only applies when building 'shared'.
779 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
781 *) Add attribute functions to EVP_PKEY structure. Modify
782 PKCS12_create() to recognize a CSP name attribute and
783 use it. Make -CSP option work again in pkcs12 utility.
786 *) Add new functionality to the bn blinding code:
787 - automatic re-creation of the BN_BLINDING parameters after
788 a fixed number of uses (currently 32)
789 - add new function for parameter creation
790 - introduce flags to control the update behaviour of the
791 BN_BLINDING parameters
792 - hide BN_BLINDING structure
793 Add a second BN_BLINDING slot to the RSA structure to improve
794 performance when a single RSA object is shared among several
798 *) Add support for DTLS.
799 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
801 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
802 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
805 *) Remove buggy and incompletet DH cert support from
806 ssl/ssl_rsa.c and ssl/s3_both.c
809 *) Use SHA-1 instead of MD5 as the default digest algorithm for
810 the apps/openssl applications.
813 *) Compile clean with "-Wall -Wmissing-prototypes
814 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
815 DEBUG_SAFESTACK must also be set.
818 *) Change ./Configure so that certain algorithms can be disabled by default.
819 The new counterpiece to "no-xxx" is "enable-xxx".
821 The patented RC5 and MDC2 algorithms will now be disabled unless
822 "enable-rc5" and "enable-mdc2", respectively, are specified.
824 (IDEA remains enabled despite being patented. This is because IDEA
825 is frequently required for interoperability, and there is no license
826 fee for non-commercial use. As before, "no-idea" can be used to
827 avoid this algorithm.)
831 *) Add processing of proxy certificates (see RFC 3820). This work was
832 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
833 EGEE (Enabling Grids for E-science in Europe).
836 *) RC4 performance overhaul on modern architectures/implementations, such
837 as Intel P4, IA-64 and AMD64.
840 *) New utility extract-section.pl. This can be used specify an alternative
841 section number in a pod file instead of having to treat each file as
842 a separate case in Makefile. This can be done by adding two lines to the
845 =for comment openssl_section:XXX
847 The blank line is mandatory.
851 *) New arguments -certform, -keyform and -pass for s_client and s_server
852 to allow alternative format key and certificate files and passphrase
856 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
857 update associated structures and add various utility functions.
859 Add new policy related verify parameters, include policy checking in
860 standard verify code. Enhance 'smime' application with extra parameters
861 to support policy checking and print out.
864 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
865 Nehemiah processors. These extensions support AES encryption in hardware
866 as well as RNG (though RNG support is currently disabled).
867 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
869 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
872 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
873 [Andy Polyakov and a number of other people]
875 *) Improved PowerPC platform support. Most notably BIGNUM assembler
876 implementation contributed by IBM.
877 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
879 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
880 exponent rather than 'unsigned long'. There is a corresponding change to
881 the new 'rsa_keygen' element of the RSA_METHOD structure.
882 [Jelte Jansen, Geoff Thorpe]
884 *) Functionality for creating the initial serial number file is now
885 moved from CA.pl to the 'ca' utility with a new option -create_serial.
887 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
888 number file to 1, which is bound to cause problems. To avoid
889 the problems while respecting compatibility between different 0.9.7
890 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
891 CA.pl for serial number initialization. With the new release 0.9.8,
892 we can fix the problem directly in the 'ca' utility.)
895 *) Reduced header interdepencies by declaring more opaque objects in
896 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
897 give fewer recursive includes, which could break lazy source code - so
898 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
899 developers should define this symbol when building and using openssl to
900 ensure they track the recommended behaviour, interfaces, [etc], but
901 backwards-compatible behaviour prevails when this isn't defined.
904 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
907 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
908 This will generate a random key of the appropriate length based on the
909 cipher context. The EVP_CIPHER can provide its own random key generation
910 routine to support keys of a specific form. This is used in the des and
911 3des routines to generate a key of the correct parity. Update S/MIME
912 code to use new functions and hence generate correct parity DES keys.
913 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
914 valid (weak or incorrect parity).
917 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
918 as looking them up. This is useful when the verified structure may contain
919 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
920 present unless the new PKCS7_NO_CRL flag is asserted.
923 *) Extend ASN1 oid configuration module. It now additionally accepts the
926 shortName = some long name, 1.2.3.4
929 *) Reimplemented the BN_CTX implementation. There is now no more static
930 limitation on the number of variables it can handle nor the depth of the
931 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
932 information can now expand as required, and rather than having a single
933 static array of bignums, BN_CTX now uses a linked-list of such arrays
934 allowing it to expand on demand whilst maintaining the usefulness of
938 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
939 to allow all RSA operations to function using a single BN_CTX.
942 *) Preliminary support for certificate policy evaluation and checking. This
943 is initially intended to pass the tests outlined in "Conformance Testing
944 of Relying Party Client Certificate Path Processing Logic" v1.07.
947 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
948 remained unused and not that useful. A variety of other little bignum
949 tweaks and fixes have also been made continuing on from the audit (see
953 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
954 associated ASN1, EVP and SSL functions and old ASN1 macros.
957 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
958 and this should never fail. So the return value from the use of
959 BN_set_word() (which can fail due to needless expansion) is now deprecated;
960 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
963 *) BN_CTX_get() should return zero-valued bignums, providing the same
964 initialised value as BN_new().
965 [Geoff Thorpe, suggested by Ulf Möller]
967 *) Support for inhibitAnyPolicy certificate extension.
970 *) An audit of the BIGNUM code is underway, for which debugging code is
971 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
972 is considered valid when processing BIGNUMs, and causes execution to
973 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
974 further steps are taken to deliberately pollute unused data in BIGNUM
975 structures to try and expose faulty code further on. For now, openssl will
976 (in its default mode of operation) continue to tolerate the inconsistent
977 forms that it has tolerated in the past, but authors and packagers should
978 consider trying openssl and their own applications when compiled with
979 these debugging symbols defined. It will help highlight potential bugs in
980 their own code, and will improve the test coverage for OpenSSL itself. At
981 some point, these tighter rules will become openssl's default to improve
982 maintainability, though the assert()s and other overheads will remain only
983 in debugging configurations. See bn.h for more details.
984 [Geoff Thorpe, Nils Larsch, Ulf Möller]
986 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
987 that can only be obtained through BN_CTX_new() (which implicitly
988 initialises it). The presence of this function only made it possible
989 to overwrite an existing structure (and cause memory leaks).
992 *) Because of the callback-based approach for implementing LHASH as a
993 template type, lh_insert() adds opaque objects to hash-tables and
994 lh_doall() or lh_doall_arg() are typically used with a destructor callback
995 to clean up those corresponding objects before destroying the hash table
996 (and losing the object pointers). So some over-zealous constifications in
997 LHASH have been relaxed so that lh_insert() does not take (nor store) the
998 objects as "const" and the lh_doall[_arg] callback wrappers are not
999 prototyped to have "const" restrictions on the object pointers they are
1000 given (and so aren't required to cast them away any more).
1003 *) The tmdiff.h API was so ugly and minimal that our own timing utility
1004 (speed) prefers to use its own implementation. The two implementations
1005 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
1006 its object type properly exposed (MS_TM) instead of casting to/from "char
1007 *". This may still change yet if someone realises MS_TM and "ms_time_***"
1008 aren't necessarily the greatest nomenclatures - but this is what was used
1009 internally to the implementation so I've used that for now.
1012 *) Ensure that deprecated functions do not get compiled when
1013 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
1014 the self-tests were still using deprecated key-generation functions so
1015 these have been updated also.
1018 *) Reorganise PKCS#7 code to separate the digest location functionality
1019 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
1020 New function PKCS7_set_digest() to set the digest type for PKCS#7
1021 digestedData type. Add additional code to correctly generate the
1022 digestedData type and add support for this type in PKCS7 initialization
1026 *) New function PKCS7_set0_type_other() this initializes a PKCS7
1027 structure of type "other".
1030 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
1031 sure the loop does correctly stop and breaking ("division by zero")
1032 modulus operations are not performed. The (pre-generated) prime
1033 table crypto/bn/bn_prime.h was already correct, but it could not be
1034 re-generated on some platforms because of the "division by zero"
1035 situation in the script.
1036 [Ralf S. Engelschall]
1038 *) Update support for ECC-based TLS ciphersuites according to
1039 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
1040 SHA-1 now is only used for "small" curves (where the
1041 representation of a field element takes up to 24 bytes); for
1042 larger curves, the field element resulting from ECDH is directly
1043 used as premaster secret.
1044 [Douglas Stebila (Sun Microsystems Laboratories)]
1046 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
1047 curve secp160r1 to the tests.
1048 [Douglas Stebila (Sun Microsystems Laboratories)]
1050 *) Add the possibility to load symbols globally with DSO.
1051 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
1053 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
1054 control of the error stack.
1057 *) Add support for STORE in ENGINE.
1060 *) Add the STORE type. The intention is to provide a common interface
1061 to certificate and key stores, be they simple file-based stores, or
1062 HSM-type store, or LDAP stores, or...
1063 NOTE: The code is currently UNTESTED and isn't really used anywhere.
1066 *) Add a generic structure called OPENSSL_ITEM. This can be used to
1067 pass a list of arguments to any function as well as provide a way
1068 for a function to pass data back to the caller.
1071 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
1072 works like BUF_strdup() but can be used to duplicate a portion of
1073 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
1077 *) Add the function sk_find_ex() which works like sk_find(), but will
1078 return an index to an element even if an exact match couldn't be
1079 found. The index is guaranteed to point at the element where the
1080 searched-for key would be inserted to preserve sorting order.
1083 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
1084 takes an extra flags argument for optional functionality. Currently,
1085 the following flags are defined:
1087 OBJ_BSEARCH_VALUE_ON_NOMATCH
1088 This one gets OBJ_bsearch_ex() to return a pointer to the first
1089 element where the comparing function returns a negative or zero
1092 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
1093 This one gets OBJ_bsearch_ex() to return a pointer to the first
1094 element where the comparing function returns zero. This is useful
1095 if there are more than one element where the comparing function
1099 *) Make it possible to create self-signed certificates with 'openssl ca'
1100 in such a way that the self-signed certificate becomes part of the
1101 CA database and uses the same mechanisms for serial number generation
1102 as all other certificate signing. The new flag '-selfsign' enables
1103 this functionality. Adapt CA.sh and CA.pl.in.
1106 *) Add functionality to check the public key of a certificate request
1107 against a given private. This is useful to check that a certificate
1108 request can be signed by that key (self-signing).
1111 *) Make it possible to have multiple active certificates with the same
1112 subject in the CA index file. This is done only if the keyword
1113 'unique_subject' is set to 'no' in the main CA section (default
1114 if 'CA_default') of the configuration file. The value is saved
1115 with the database itself in a separate index attribute file,
1116 named like the index file with '.attr' appended to the name.
1119 *) Generate muti valued AVAs using '+' notation in config files for
1123 *) Support for nameConstraints certificate extension.
1126 *) Support for policyConstraints certificate extension.
1129 *) Support for policyMappings certificate extension.
1132 *) Make sure the default DSA_METHOD implementation only uses its
1133 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
1134 and change its own handlers to be NULL so as to remove unnecessary
1135 indirection. This lets alternative implementations fallback to the
1136 default implementation more easily.
1139 *) Support for directoryName in GeneralName related extensions
1143 *) Make it possible to link applications using Makefile.shared.
1144 Make that possible even when linking against static libraries!
1147 *) Support for single pass processing for S/MIME signing. This now
1148 means that S/MIME signing can be done from a pipe, in addition
1149 cleartext signing (multipart/signed type) is effectively streaming
1150 and the signed data does not need to be all held in memory.
1152 This is done with a new flag PKCS7_STREAM. When this flag is set
1153 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
1154 is done after the data is output (and digests calculated) in
1155 SMIME_write_PKCS7().
1158 *) Add full support for -rpath/-R, both in shared libraries and
1159 applications, at least on the platforms where it's known how
1163 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
1164 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
1165 will now compute a table of multiples of the generator that
1166 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
1167 faster (notably in the case of a single point multiplication,
1168 scalar * generator).
1169 [Nils Larsch, Bodo Moeller]
1171 *) IPv6 support for certificate extensions. The various extensions
1172 which use the IP:a.b.c.d can now take IPv6 addresses using the
1173 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
1177 *) Added an ENGINE that implements RSA by performing private key
1178 exponentiations with the GMP library. The conversions to and from
1179 GMP's mpz_t format aren't optimised nor are any montgomery forms
1180 cached, and on x86 it appears OpenSSL's own performance has caught up.
1181 However there are likely to be other architectures where GMP could
1182 provide a boost. This ENGINE is not built in by default, but it can be
1183 specified at Configure time and should be accompanied by the necessary
1184 linker additions, eg;
1185 ./config -DOPENSSL_USE_GMP -lgmp
1188 *) "openssl engine" will not display ENGINE/DSO load failure errors when
1189 testing availability of engines with "-t" - the old behaviour is
1190 produced by increasing the feature's verbosity with "-tt".
1193 *) ECDSA routines: under certain error conditions uninitialized BN objects
1194 could be freed. Solution: make sure initialization is performed early
1195 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
1199 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
1200 and DH_METHOD (eg. by ENGINE implementations) to override the normal
1201 software implementations. For DSA and DH, parameter generation can
1202 also be overriden by providing the appropriate method callbacks.
1205 *) Change the "progress" mechanism used in key-generation and
1206 primality testing to functions that take a new BN_GENCB pointer in
1207 place of callback/argument pairs. The new API functions have "_ex"
1208 postfixes and the older functions are reimplemented as wrappers for
1209 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
1210 declarations of the old functions to help (graceful) attempts to
1211 migrate to the new functions. Also, the new key-generation API
1212 functions operate on a caller-supplied key-structure and return
1213 success/failure rather than returning a key or NULL - this is to
1214 help make "keygen" another member function of RSA_METHOD etc.
1216 Example for using the new callback interface:
1218 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
1222 BN_GENCB_set(&my_cb, my_callback, my_arg);
1224 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
1225 /* For the meaning of a, b in calls to my_callback(), see the
1226 * documentation of the function that calls the callback.
1227 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
1228 * my_callback should return 1 if it wants BN_is_prime_ex()
1229 * to continue, or 0 to stop.
1234 *) Change the ZLIB compression method to be stateful, and make it
1235 available to TLS with the number defined in
1236 draft-ietf-tls-compression-04.txt.
1239 *) Add the ASN.1 structures and functions for CertificatePair, which
1240 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
1242 CertificatePair ::= SEQUENCE {
1243 forward [0] Certificate OPTIONAL,
1244 reverse [1] Certificate OPTIONAL,
1245 -- at least one of the pair shall be present -- }
1247 Also implement the PEM functions to read and write certificate
1248 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
1250 This needed to be defined, mostly for the sake of the LDAP
1251 attribute crossCertificatePair, but may prove useful elsewhere as
1255 *) Make it possible to inhibit symlinking of shared libraries in
1256 Makefile.shared, for Cygwin's sake.
1259 *) Extend the BIGNUM API by creating a function
1260 void BN_set_negative(BIGNUM *a, int neg);
1261 and a macro that behave like
1262 int BN_is_negative(const BIGNUM *a);
1264 to avoid the need to access 'a->neg' directly in applications.
1267 *) Implement fast modular reduction for pseudo-Mersenne primes
1268 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
1269 EC_GROUP_new_curve_GFp() will now automatically use this
1271 [Nils Larsch <nla@trustcenter.de>]
1273 *) Add new lock type (CRYPTO_LOCK_BN).
1276 *) Change the ENGINE framework to automatically load engines
1277 dynamically from specific directories unless they could be
1278 found to already be built in or loaded. Move all the
1279 current engines except for the cryptodev one to a new
1281 The engines in engines/ are built as shared libraries if
1282 the "shared" options was given to ./Configure or ./config.
1283 Otherwise, they are inserted in libcrypto.a.
1284 /usr/local/ssl/engines is the default directory for dynamic
1285 engines, but that can be overriden at configure time through
1286 the usual use of --prefix and/or --openssldir, and at run
1287 time with the environment variable OPENSSL_ENGINES.
1288 [Geoff Thorpe and Richard Levitte]
1290 *) Add Makefile.shared, a helper makefile to build shared
1291 libraries. Addapt Makefile.org.
1294 *) Add version info to Win32 DLLs.
1295 [Peter 'Luna' Runestig" <peter@runestig.com>]
1297 *) Add new 'medium level' PKCS#12 API. Certificates and keys
1298 can be added using this API to created arbitrary PKCS#12
1299 files while avoiding the low level API.
1301 New options to PKCS12_create(), key or cert can be NULL and
1302 will then be omitted from the output file. The encryption
1303 algorithm NIDs can be set to -1 for no encryption, the mac
1304 iteration count can be set to 0 to omit the mac.
1306 Enhance pkcs12 utility by making the -nokeys and -nocerts
1307 options work when creating a PKCS#12 file. New option -nomac
1308 to omit the mac, NONE can be set for an encryption algorithm.
1309 New code is modified to use the enhanced PKCS12_create()
1310 instead of the low level API.
1313 *) Extend ASN1 encoder to support indefinite length constructed
1314 encoding. This can output sequences tags and octet strings in
1315 this form. Modify pk7_asn1.c to support indefinite length
1316 encoding. This is experimental and needs additional code to
1317 be useful, such as an ASN1 bio and some enhanced streaming
1320 Extend template encode functionality so that tagging is passed
1321 down to the template encoder.
1324 *) Let 'openssl req' fail if an argument to '-newkey' is not
1325 recognized instead of using RSA as a default.
1328 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
1329 As these are not official, they are not included in "ALL";
1330 the "ECCdraft" ciphersuite group alias can be used to select them.
1331 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
1333 *) Add ECDH engine support.
1334 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
1336 *) Add ECDH in new directory crypto/ecdh/.
1337 [Douglas Stebila (Sun Microsystems Laboratories)]
1339 *) Let BN_rand_range() abort with an error after 100 iterations
1340 without success (which indicates a broken PRNG).
1343 *) Change BN_mod_sqrt() so that it verifies that the input value
1344 is really the square of the return value. (Previously,
1345 BN_mod_sqrt would show GIGO behaviour.)
1348 *) Add named elliptic curves over binary fields from X9.62, SECG,
1349 and WAP/WTLS; add OIDs that were still missing.
1351 [Sheueling Chang Shantz and Douglas Stebila
1352 (Sun Microsystems Laboratories)]
1354 *) Extend the EC library for elliptic curves over binary fields
1355 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
1358 EC_GF2m_simple_method
1362 EC_GROUP_new_curve_GF2m
1363 EC_GROUP_set_curve_GF2m
1364 EC_GROUP_get_curve_GF2m
1365 EC_POINT_set_affine_coordinates_GF2m
1366 EC_POINT_get_affine_coordinates_GF2m
1367 EC_POINT_set_compressed_coordinates_GF2m
1369 Point compression for binary fields is disabled by default for
1370 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
1373 As binary polynomials are represented as BIGNUMs, various members
1374 of the EC_GROUP and EC_POINT data structures can be shared
1375 between the implementations for prime fields and binary fields;
1376 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
1377 are essentially identical to their ..._GFp counterparts.
1378 (For simplicity, the '..._GFp' prefix has been dropped from
1379 various internal method names.)
1381 An internal 'field_div' method (similar to 'field_mul' and
1382 'field_sqr') has been added; this is used only for binary fields.
1384 [Sheueling Chang Shantz and Douglas Stebila
1385 (Sun Microsystems Laboratories)]
1387 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
1388 through methods ('mul', 'precompute_mult').
1390 The generic implementations (now internally called 'ec_wNAF_mul'
1391 and 'ec_wNAF_precomputed_mult') remain the default if these
1392 methods are undefined.
1394 [Sheueling Chang Shantz and Douglas Stebila
1395 (Sun Microsystems Laboratories)]
1397 *) New function EC_GROUP_get_degree, which is defined through
1398 EC_METHOD. For curves over prime fields, this returns the bit
1399 length of the modulus.
1401 [Sheueling Chang Shantz and Douglas Stebila
1402 (Sun Microsystems Laboratories)]
1404 *) New functions EC_GROUP_dup, EC_POINT_dup.
1405 (These simply call ..._new and ..._copy).
1407 [Sheueling Chang Shantz and Douglas Stebila
1408 (Sun Microsystems Laboratories)]
1410 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
1411 Polynomials are represented as BIGNUMs (where the sign bit is not
1412 used) in the following functions [macros]:
1415 BN_GF2m_sub [= BN_GF2m_add]
1416 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
1417 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
1418 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
1420 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
1421 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
1422 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
1423 BN_GF2m_cmp [= BN_ucmp]
1425 (Note that only the 'mod' functions are actually for fields GF(2^m).
1426 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
1428 For some functions, an the irreducible polynomial defining a
1429 field can be given as an 'unsigned int[]' with strictly
1430 decreasing elements giving the indices of those bits that are set;
1431 i.e., p[] represents the polynomial
1432 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
1434 p[0] > p[1] > ... > p[k] = 0.
1435 This applies to the following functions:
1440 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
1441 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
1443 BN_GF2m_mod_sqrt_arr
1444 BN_GF2m_mod_solve_quad_arr
1448 Conversion can be performed by the following functions:
1453 bntest.c has additional tests for binary polynomial arithmetic.
1455 Two implementations for BN_GF2m_mod_div() are available.
1456 The default algorithm simply uses BN_GF2m_mod_inv() and
1457 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
1458 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
1459 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
1461 [Sheueling Chang Shantz and Douglas Stebila
1462 (Sun Microsystems Laboratories)]
1464 *) Add new error code 'ERR_R_DISABLED' that can be used when some
1465 functionality is disabled at compile-time.
1466 [Douglas Stebila <douglas.stebila@sun.com>]
1468 *) Change default behaviour of 'openssl asn1parse' so that more
1469 information is visible when viewing, e.g., a certificate:
1471 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
1472 mode the content of non-printable OCTET STRINGs is output in a
1473 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
1474 avoid the appearance of a printable string.
1475 [Nils Larsch <nla@trustcenter.de>]
1477 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
1479 EC_GROUP_set_asn1_flag()
1480 EC_GROUP_get_asn1_flag()
1481 EC_GROUP_set_point_conversion_form()
1482 EC_GROUP_get_point_conversion_form()
1483 These control ASN1 encoding details:
1484 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
1485 has been set to OPENSSL_EC_NAMED_CURVE.
1486 - Points are encoded in uncompressed form by default; options for
1487 asn1_for are as for point2oct, namely
1488 POINT_CONVERSION_COMPRESSED
1489 POINT_CONVERSION_UNCOMPRESSED
1490 POINT_CONVERSION_HYBRID
1492 Also add 'seed' and 'seed_len' members to EC_GROUP with access
1495 EC_GROUP_get0_seed()
1496 EC_GROUP_get_seed_len()
1497 This is used only for ASN1 purposes (so far).
1498 [Nils Larsch <nla@trustcenter.de>]
1500 *) Add 'field_type' member to EC_METHOD, which holds the NID
1501 of the appropriate field type OID. The new function
1502 EC_METHOD_get_field_type() returns this value.
1503 [Nils Larsch <nla@trustcenter.de>]
1508 EC_POINT_point2hex()
1509 EC_POINT_hex2point()
1510 providing useful interfaces to EC_POINT_point2oct() and
1511 EC_POINT_oct2point().
1512 [Nils Larsch <nla@trustcenter.de>]
1514 *) Change internals of the EC library so that the functions
1515 EC_GROUP_set_generator()
1516 EC_GROUP_get_generator()
1517 EC_GROUP_get_order()
1518 EC_GROUP_get_cofactor()
1519 are implemented directly in crypto/ec/ec_lib.c and not dispatched
1520 to methods, which would lead to unnecessary code duplication when
1521 adding different types of curves.
1522 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
1524 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
1525 arithmetic, and such that modified wNAFs are generated
1526 (which avoid length expansion in many cases).
1529 *) Add a function EC_GROUP_check_discriminant() (defined via
1530 EC_METHOD) that verifies that the curve discriminant is non-zero.
1532 Add a function EC_GROUP_check() that makes some sanity tests
1533 on a EC_GROUP, its generator and order. This includes
1534 EC_GROUP_check_discriminant().
1535 [Nils Larsch <nla@trustcenter.de>]
1537 *) Add ECDSA in new directory crypto/ecdsa/.
1539 Add applications 'openssl ecparam' and 'openssl ecdsa'
1540 (these are based on 'openssl dsaparam' and 'openssl dsa').
1542 ECDSA support is also included in various other files across the
1543 library. Most notably,
1544 - 'openssl req' now has a '-newkey ecdsa:file' option;
1545 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
1546 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
1547 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
1548 them suitable for ECDSA where domain parameters must be
1549 extracted before the specific public key;
1550 - ECDSA engine support has been added.
1551 [Nils Larsch <nla@trustcenter.de>]
1553 *) Include some named elliptic curves, and add OIDs from X9.62,
1554 SECG, and WAP/WTLS. Each curve can be obtained from the new
1556 EC_GROUP_new_by_curve_name(),
1557 and the list of available named curves can be obtained with
1558 EC_get_builtin_curves().
1559 Also add a 'curve_name' member to EC_GROUP objects, which can be
1561 EC_GROUP_set_curve_name()
1562 EC_GROUP_get_curve_name()
1563 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
1565 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
1566 was actually never needed) and in BN_mul(). The removal in BN_mul()
1567 required a small change in bn_mul_part_recursive() and the addition
1568 of the functions bn_cmp_part_words(), bn_sub_part_words() and
1569 bn_add_part_words(), which do the same thing as bn_cmp_words(),
1570 bn_sub_words() and bn_add_words() except they take arrays with
1574 Changes between 0.9.7m and 0.9.7n [xx XXX xxxx]
1576 *) In the SSL/TLS server implementation, be strict about session ID
1577 context matching (which matters if an application uses a single
1578 external cache for different purposes). Previously,
1579 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
1580 set. This did ensure strict client verification, but meant that,
1581 with applications using a single external cache for quite
1582 different requirements, clients could circumvent ciphersuite
1583 restrictions for a given session ID context by starting a session
1584 in a different context.
1587 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
1589 *) Cleanse PEM buffers before freeing them since they may contain
1591 [Benjamin Bennett <ben@psc.edu>]
1593 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1594 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1595 authentication-only ciphersuites.
1598 *) Since AES128 and AES256 share a single mask bit in the logic of
1599 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1600 kludge to work properly if AES128 is available and AES256 isn't.
1603 *) Expand security boundary to match 1.1.1 module.
1606 *) Remove redundant features: hash file source, editing of test vectors
1607 modify fipsld to use external fips_premain.c signature.
1610 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
1611 run algorithm test programs.
1614 *) Make algorithm test programs more tolerant of whitespace.
1617 *) Have SSL/TLS server implementation tolerate "mismatched" record
1618 protocol version while receiving ClientHello even if the
1619 ClientHello is fragmented. (The server can't insist on the
1620 particular protocol version it has chosen before the ServerHello
1621 message has informed the client about his choice.)
1624 *) Load error codes if they are not already present instead of using a
1625 static variable. This allows them to be cleanly unloaded and reloaded.
1628 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
1630 *) Introduce limits to prevent malicious keys being able to
1631 cause a denial of service. (CVE-2006-2940)
1632 [Steve Henson, Bodo Moeller]
1634 *) Fix ASN.1 parsing of certain invalid structures that can result
1635 in a denial of service. (CVE-2006-2937) [Steve Henson]
1637 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1638 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1640 *) Fix SSL client code which could crash if connecting to a
1641 malicious SSLv2 server. (CVE-2006-4343)
1642 [Tavis Ormandy and Will Drewry, Google Security Team]
1644 *) Change ciphersuite string processing so that an explicit
1645 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
1646 will no longer include "AES128-SHA"), and any other similar
1647 ciphersuite (same bitmap) from *other* protocol versions (so that
1648 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
1649 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
1650 changes from 0.9.8b and 0.9.8d.
1653 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
1655 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1656 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1658 *) Change the Unix randomness entropy gathering to use poll() when
1659 possible instead of select(), since the latter has some
1660 undesirable limitations.
1661 [Darryl Miles via Richard Levitte and Bodo Moeller]
1663 *) Disable rogue ciphersuites:
1665 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1666 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1667 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1669 The latter two were purportedly from
1670 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1673 Also deactive the remaining ciphersuites from
1674 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1675 unofficial, and the ID has long expired.
1678 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1679 dual-core machines) and other potential thread-safety issues.
1682 Changes between 0.9.7i and 0.9.7j [04 May 2006]
1684 *) Adapt fipsld and the build system to link against the validated FIPS
1685 module in FIPS mode.
1688 *) Fixes for VC++ 2005 build under Windows.
1691 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
1692 from a Windows bash shell such as MSYS. It is autodetected from the
1693 "config" script when run from a VC++ environment. Modify standard VC++
1694 build to use fipscanister.o from the GNU make build.
1697 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
1699 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
1700 The value now differs depending on if you build for FIPS or not.
1701 BEWARE! A program linked with a shared FIPSed libcrypto can't be
1702 safely run with a non-FIPSed libcrypto, as it may crash because of
1703 the difference induced by this change.
1706 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
1708 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1709 (part of SSL_OP_ALL). This option used to disable the
1710 countermeasure against man-in-the-middle protocol-version
1711 rollback in the SSL 2.0 server implementation, which is a bad
1712 idea. (CVE-2005-2969)
1714 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1715 for Information Security, National Institute of Advanced Industrial
1716 Science and Technology [AIST], Japan)]
1718 *) Minimal support for X9.31 signatures and PSS padding modes. This is
1719 mainly for FIPS compliance and not fully integrated at this stage.
1722 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
1723 the exponentiation using a fixed-length exponent. (Otherwise,
1724 the information leaked through timing could expose the secret key
1725 after many signatures; cf. Bleichenbacher's attack on DSA with
1729 *) Make a new fixed-window mod_exp implementation the default for
1730 RSA, DSA, and DH private-key operations so that the sequence of
1731 squares and multiplies and the memory access pattern are
1732 independent of the particular secret key. This will mitigate
1733 cache-timing and potential related attacks.
1735 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
1736 and this is automatically used by BN_mod_exp_mont() if the new flag
1737 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
1738 will use this BN flag for private exponents unless the flag
1739 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
1740 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
1742 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
1744 *) Change the client implementation for SSLv23_method() and
1745 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
1746 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
1747 (Previously, the SSL 2.0 backwards compatible Client Hello
1748 message format would be used even with SSL_OP_NO_SSLv2.)
1751 *) Add support for smime-type MIME parameter in S/MIME messages which some
1755 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
1756 a threadsafe manner. Modify rsa code to use new function and add calls
1757 to dsa and dh code (which had race conditions before).
1760 *) Include the fixed error library code in the C error file definitions
1761 instead of fixing them up at runtime. This keeps the error code
1762 structures constant.
1765 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
1767 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
1770 *) Fixes for newer kerberos headers. NB: the casts are needed because
1771 the 'length' field is signed on one version and unsigned on another
1772 with no (?) obvious way to tell the difference, without these VC++
1773 complains. Also the "definition" of FAR (blank) is no longer included
1774 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
1775 some needed definitions.
1778 *) Undo Cygwin change.
1781 *) Added support for proxy certificates according to RFC 3820.
1782 Because they may be a security thread to unaware applications,
1783 they must be explicitely allowed in run-time. See
1784 docs/HOWTO/proxy_certificates.txt for further information.
1787 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
1789 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
1790 server and client random values. Previously
1791 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
1792 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
1794 This change has negligible security impact because:
1796 1. Server and client random values still have 24 bytes of pseudo random
1799 2. Server and client random values are sent in the clear in the initial
1802 3. The master secret is derived using the premaster secret (48 bytes in
1803 size for static RSA ciphersuites) as well as client server and random
1806 The OpenSSL team would like to thank the UK NISCC for bringing this issue
1809 [Stephen Henson, reported by UK NISCC]
1811 *) Use Windows randomness collection on Cygwin.
1814 *) Fix hang in EGD/PRNGD query when communication socket is closed
1815 prematurely by EGD/PRNGD.
1816 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
1818 *) Prompt for pass phrases when appropriate for PKCS12 input format.
1821 *) Back-port of selected performance improvements from development
1822 branch, as well as improved support for PowerPC platforms.
1825 *) Add lots of checks for memory allocation failure, error codes to indicate
1826 failure and freeing up memory if a failure occurs.
1827 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
1829 *) Add new -passin argument to dgst.
1832 *) Perform some character comparisons of different types in X509_NAME_cmp:
1833 this is needed for some certificates that reencode DNs into UTF8Strings
1834 (in violation of RFC3280) and can't or wont issue name rollover
1838 *) Make an explicit check during certificate validation to see that
1839 the CA setting in each certificate on the chain is correct. As a
1840 side effect always do the following basic checks on extensions,
1841 not just when there's an associated purpose to the check:
1843 - if there is an unhandled critical extension (unless the user
1844 has chosen to ignore this fault)
1845 - if the path length has been exceeded (if one is set at all)
1846 - that certain extensions fit the associated purpose (if one has
1850 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
1852 *) Avoid a race condition when CRLs are checked in a multi threaded
1853 environment. This would happen due to the reordering of the revoked
1854 entries during signature checking and serial number lookup. Now the
1855 encoding is cached and the serial number sort performed under a lock.
1856 Add new STACK function sk_is_sorted().
1859 *) Add Delta CRL to the extension code.
1862 *) Various fixes to s3_pkt.c so alerts are sent properly.
1863 [David Holmes <d.holmes@f5.com>]
1865 *) Reduce the chances of duplicate issuer name and serial numbers (in
1866 violation of RFC3280) using the OpenSSL certificate creation utilities.
1867 This is done by creating a random 64 bit value for the initial serial
1868 number when a serial number file is created or when a self signed
1869 certificate is created using 'openssl req -x509'. The initial serial
1870 number file is created using 'openssl x509 -next_serial' in CA.pl
1871 rather than being initialized to 1.
1874 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
1876 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
1877 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
1878 [Joe Orton, Steve Henson]
1880 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
1882 [Joe Orton, Steve Henson]
1884 *) Make it possible to have multiple active certificates with the same
1885 subject in the CA index file. This is done only if the keyword
1886 'unique_subject' is set to 'no' in the main CA section (default
1887 if 'CA_default') of the configuration file. The value is saved
1888 with the database itself in a separate index attribute file,
1889 named like the index file with '.attr' appended to the name.
1892 *) X509 verify fixes. Disable broken certificate workarounds when
1893 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
1894 keyUsage extension present. Don't accept CRLs with unhandled critical
1895 extensions: since verify currently doesn't process CRL extensions this
1896 rejects a CRL with *any* critical extensions. Add new verify error codes
1900 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
1901 A clarification of RFC2560 will require the use of OCTET STRINGs and
1902 some implementations cannot handle the current raw format. Since OpenSSL
1903 copies and compares OCSP nonces as opaque blobs without any attempt at
1904 parsing them this should not create any compatibility issues.
1907 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
1908 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
1909 this HMAC (and other) operations are several times slower than OpenSSL
1913 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
1914 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1916 *) Use the correct content when signing type "other".
1919 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
1921 *) Fix various bugs revealed by running the NISCC test suite:
1923 Stop out of bounds reads in the ASN1 code when presented with
1924 invalid tags (CVE-2003-0543 and CVE-2003-0544).
1926 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
1928 If verify callback ignores invalid public key errors don't try to check
1929 certificate signature with the NULL public key.
1933 *) New -ignore_err option in ocsp application to stop the server
1934 exiting on the first error in a request.
1937 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
1938 if the server requested one: as stated in TLS 1.0 and SSL 3.0
1942 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
1943 extra data after the compression methods not only for TLS 1.0
1944 but also for SSL 3.0 (as required by the specification).
1945 [Bodo Moeller; problem pointed out by Matthias Loepfe]
1947 *) Change X509_certificate_type() to mark the key as exported/exportable
1948 when it's 512 *bits* long, not 512 bytes.
1951 *) Change AES_cbc_encrypt() so it outputs exact multiple of
1952 blocks during encryption.
1955 *) Various fixes to base64 BIO and non blocking I/O. On write
1956 flushes were not handled properly if the BIO retried. On read
1957 data was not being buffered properly and had various logic bugs.
1958 This also affects blocking I/O when the data being decoded is a
1962 *) Various S/MIME bugfixes and compatibility changes:
1963 output correct application/pkcs7 MIME type if
1964 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
1965 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
1966 of files as .eml work). Correctly handle very long lines in MIME
1970 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
1972 *) Countermeasure against the Klima-Pokorny-Rosa extension of
1973 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
1974 a protocol version number mismatch like a decryption error
1975 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
1978 *) Turn on RSA blinding by default in the default implementation
1979 to avoid a timing attack. Applications that don't want it can call
1980 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
1981 They would be ill-advised to do so in most cases.
1982 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
1984 *) Change RSA blinding code so that it works when the PRNG is not
1985 seeded (in this case, the secret RSA exponent is abused as
1986 an unpredictable seed -- if it is not unpredictable, there
1987 is no point in blinding anyway). Make RSA blinding thread-safe
1988 by remembering the creator's thread ID in rsa->blinding and
1989 having all other threads use local one-time blinding factors
1990 (this requires more computation than sharing rsa->blinding, but
1991 avoids excessive locking; and if an RSA object is not shared
1992 between threads, blinding will still be very fast).
1995 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
1996 ENGINE as defaults for all supported algorithms irrespective of
1997 the 'flags' parameter. 'flags' is now honoured, so applications
1998 should make sure they are passing it correctly.
2001 *) Target "mingw" now allows native Windows code to be generated in
2002 the Cygwin environment as well as with the MinGW compiler.
2005 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
2007 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
2008 via timing by performing a MAC computation even if incorrrect
2009 block cipher padding has been found. This is a countermeasure
2010 against active attacks where the attacker has to distinguish
2011 between bad padding and a MAC verification error. (CVE-2003-0078)
2013 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
2014 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
2015 Martin Vuagnoux (EPFL, Ilion)]
2017 *) Make the no-err option work as intended. The intention with no-err
2018 is not to have the whole error stack handling routines removed from
2019 libcrypto, it's only intended to remove all the function name and
2020 reason texts, thereby removing some of the footprint that may not
2021 be interesting if those errors aren't displayed anyway.
2023 NOTE: it's still possible for any application or module to have it's
2024 own set of error texts inserted. The routines are there, just not
2025 used by default when no-err is given.
2028 *) Add support for FreeBSD on IA64.
2029 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
2031 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
2032 Kerberos function mit_des_cbc_cksum(). Before this change,
2033 the value returned by DES_cbc_cksum() was like the one from
2034 mit_des_cbc_cksum(), except the bytes were swapped.
2035 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
2037 *) Allow an application to disable the automatic SSL chain building.
2038 Before this a rather primitive chain build was always performed in
2039 ssl3_output_cert_chain(): an application had no way to send the
2040 correct chain if the automatic operation produced an incorrect result.
2042 Now the chain builder is disabled if either:
2044 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
2046 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
2048 The reasoning behind this is that an application would not want the
2049 auto chain building to take place if extra chain certificates are
2050 present and it might also want a means of sending no additional
2051 certificates (for example the chain has two certificates and the
2055 *) Add the possibility to build without the ENGINE framework.
2056 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2058 *) Under Win32 gmtime() can return NULL: check return value in
2059 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
2062 *) DSA routines: under certain error conditions uninitialized BN objects
2063 could be freed. Solution: make sure initialization is performed early
2064 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
2065 Nils Larsch <nla@trustcenter.de> via PR#459)
2068 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
2069 checked on reconnect on the client side, therefore session resumption
2070 could still fail with a "ssl session id is different" error. This
2071 behaviour is masked when SSL_OP_ALL is used due to
2072 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
2073 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2074 followup to PR #377.
2077 *) IA-32 assembler support enhancements: unified ELF targets, support
2078 for SCO/Caldera platforms, fix for Cygwin shared build.
2081 *) Add support for FreeBSD on sparc64. As a consequence, support for
2082 FreeBSD on non-x86 processors is separate from x86 processors on
2083 the config script, much like the NetBSD support.
2084 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
2086 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
2088 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
2091 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
2092 code (06) was taken as the first octet of the session ID and the last
2093 octet was ignored consequently. As a result SSLv2 client side session
2094 caching could not have worked due to the session ID mismatch between
2096 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2100 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
2101 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
2105 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
2106 seems that in spite of existing for more than a year, many application
2107 author have done nothing to provide the necessary callbacks, which
2108 means that this particular engine will not work properly anywhere.
2109 This is a very unfortunate situation which forces us, in the name
2110 of usability, to give the hw_ncipher.c a static lock, which is part
2112 NOTE: This is for the 0.9.7 series ONLY. This hack will never
2113 appear in 0.9.8 or later. We EXPECT application authors to have
2114 dealt properly with this when 0.9.8 is released (unless we actually
2115 make such changes in the libcrypto locking code that changes will
2116 have to be made anyway).
2119 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
2120 octets have been read, EOF or an error occurs. Without this change
2121 some truncated ASN1 structures will not produce an error.
2124 *) Disable Heimdal support, since it hasn't been fully implemented.
2125 Still give the possibility to force the use of Heimdal, but with
2126 warnings and a request that patches get sent to openssl-dev.
2129 *) Add the VC-CE target, introduce the WINCE sysname, and add
2130 INSTALL.WCE and appropriate conditionals to make it build.
2131 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2133 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
2134 cygssl-x.y.z.dll, where x, y and z are the major, minor and
2135 edit numbers of the version.
2136 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
2138 *) Introduce safe string copy and catenation functions
2139 (BUF_strlcpy() and BUF_strlcat()).
2140 [Ben Laurie (CHATS) and Richard Levitte]
2142 *) Avoid using fixed-size buffers for one-line DNs.
2143 [Ben Laurie (CHATS)]
2145 *) Add BUF_MEM_grow_clean() to avoid information leakage when
2146 resizing buffers containing secrets, and use where appropriate.
2147 [Ben Laurie (CHATS)]
2149 *) Avoid using fixed size buffers for configuration file location.
2150 [Ben Laurie (CHATS)]
2152 *) Avoid filename truncation for various CA files.
2153 [Ben Laurie (CHATS)]
2155 *) Use sizeof in preference to magic numbers.
2156 [Ben Laurie (CHATS)]
2158 *) Avoid filename truncation in cert requests.
2159 [Ben Laurie (CHATS)]
2161 *) Add assertions to check for (supposedly impossible) buffer
2163 [Ben Laurie (CHATS)]
2165 *) Don't cache truncated DNS entries in the local cache (this could
2166 potentially lead to a spoofing attack).
2167 [Ben Laurie (CHATS)]
2169 *) Fix various buffers to be large enough for hex/decimal
2170 representations in a platform independent manner.
2171 [Ben Laurie (CHATS)]
2173 *) Add CRYPTO_realloc_clean() to avoid information leakage when
2174 resizing buffers containing secrets, and use where appropriate.
2175 [Ben Laurie (CHATS)]
2177 *) Add BIO_indent() to avoid much slightly worrying code to do
2179 [Ben Laurie (CHATS)]
2181 *) Convert sprintf()/BIO_puts() to BIO_printf().
2182 [Ben Laurie (CHATS)]
2184 *) buffer_gets() could terminate with the buffer only half
2186 [Ben Laurie (CHATS)]
2188 *) Add assertions to prevent user-supplied crypto functions from
2189 overflowing internal buffers by having large block sizes, etc.
2190 [Ben Laurie (CHATS)]
2192 *) New OPENSSL_assert() macro (similar to assert(), but enabled
2194 [Ben Laurie (CHATS)]
2196 *) Eliminate unused copy of key in RC4.
2197 [Ben Laurie (CHATS)]
2199 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
2200 [Ben Laurie (CHATS)]
2202 *) Fix off-by-one error in EGD path.
2203 [Ben Laurie (CHATS)]
2205 *) If RANDFILE path is too long, ignore instead of truncating.
2206 [Ben Laurie (CHATS)]
2208 *) Eliminate unused and incorrectly sized X.509 structure
2210 [Ben Laurie (CHATS)]
2212 *) Eliminate unused and dangerous function knumber().
2213 [Ben Laurie (CHATS)]
2215 *) Eliminate unused and dangerous structure, KSSL_ERR.
2216 [Ben Laurie (CHATS)]
2218 *) Protect against overlong session ID context length in an encoded
2219 session object. Since these are local, this does not appear to be
2221 [Ben Laurie (CHATS)]
2223 *) Change from security patch (see 0.9.6e below) that did not affect
2224 the 0.9.6 release series:
2226 Remote buffer overflow in SSL3 protocol - an attacker could
2227 supply an oversized master key in Kerberos-enabled versions.
2229 [Ben Laurie (CHATS)]
2231 *) Change the SSL kerb5 codes to match RFC 2712.
2234 *) Make -nameopt work fully for req and add -reqopt switch.
2235 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
2237 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
2238 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
2240 *) Make sure tests can be performed even if the corresponding algorithms
2241 have been removed entirely. This was also the last step to make
2242 OpenSSL compilable with DJGPP under all reasonable conditions.
2243 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
2245 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
2246 to allow version independent disabling of normally unselected ciphers,
2247 which may be activated as a side-effect of selecting a single cipher.
2249 (E.g., cipher list string "RSA" enables ciphersuites that are left
2250 out of "ALL" because they do not provide symmetric encryption.
2251 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
2252 [Lutz Jaenicke, Bodo Moeller]
2254 *) Add appropriate support for separate platform-dependent build
2255 directories. The recommended way to make a platform-dependent
2256 build directory is the following (tested on Linux), maybe with
2259 # Place yourself outside of the OpenSSL source tree. In
2260 # this example, the environment variable OPENSSL_SOURCE
2261 # is assumed to contain the absolute OpenSSL source directory.
2262 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
2263 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
2264 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
2265 mkdir -p `dirname $F`
2266 ln -s $OPENSSL_SOURCE/$F $F
2269 To be absolutely sure not to disturb the source tree, a "make clean"
2270 is a good thing. If it isn't successfull, don't worry about it,
2271 it probably means the source directory is very clean.
2274 *) Make sure any ENGINE control commands make local copies of string
2275 pointers passed to them whenever necessary. Otherwise it is possible
2276 the caller may have overwritten (or deallocated) the original string
2277 data when a later ENGINE operation tries to use the stored values.
2278 [Götz Babin-Ebell <babinebell@trustcenter.de>]
2280 *) Improve diagnostics in file reading and command-line digests.
2281 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
2283 *) Add AES modes CFB and OFB to the object database. Correct an
2284 error in AES-CFB decryption.
2287 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
2288 allows existing EVP_CIPHER_CTX structures to be reused after
2289 calling EVP_*Final(). This behaviour is used by encryption
2290 BIOs and some applications. This has the side effect that
2291 applications must explicitly clean up cipher contexts with
2292 EVP_CIPHER_CTX_cleanup() or they will leak memory.
2295 *) Check the values of dna and dnb in bn_mul_recursive before calling
2296 bn_mul_comba (a non zero value means the a or b arrays do not contain
2297 n2 elements) and fallback to bn_mul_normal if either is not zero.
2300 *) Fix escaping of non-ASCII characters when using the -subj option
2301 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
2304 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
2305 form for "surname", serialNumber has no short form.
2306 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
2307 therefore remove "mail" short name for "internet 7".
2308 The OID for unique identifiers in X509 certificates is
2309 x500UniqueIdentifier, not uniqueIdentifier.
2310 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
2313 *) Add an "init" command to the ENGINE config module and auto initialize
2314 ENGINEs. Without any "init" command the ENGINE will be initialized
2315 after all ctrl commands have been executed on it. If init=1 the
2316 ENGINE is initailized at that point (ctrls before that point are run
2317 on the uninitialized ENGINE and after on the initialized one). If
2318 init=0 then the ENGINE will not be iniatialized at all.
2321 *) Fix the 'app_verify_callback' interface so that the user-defined
2322 argument is actually passed to the callback: In the
2323 SSL_CTX_set_cert_verify_callback() prototype, the callback
2324 declaration has been changed from
2327 int (*cb)(X509_STORE_CTX *,void *);
2328 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
2329 i=s->ctx->app_verify_callback(&ctx)
2330 has been changed into
2331 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
2333 To update applications using SSL_CTX_set_cert_verify_callback(),
2334 a dummy argument can be added to their callback functions.
2335 [D. K. Smetters <smetters@parc.xerox.com>]
2337 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
2338 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
2340 *) Add and OPENSSL_LOAD_CONF define which will cause
2341 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
2342 This allows older applications to transparently support certain
2343 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
2344 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
2345 load the config file and OPENSSL_add_all_algorithms_conf() which will
2346 always load it have also been added.
2349 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
2350 Adjust NIDs and EVP layer.
2351 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2353 *) Config modules support in openssl utility.
2355 Most commands now load modules from the config file,
2356 though in a few (such as version) this isn't done
2357 because it couldn't be used for anything.
2359 In the case of ca and req the config file used is
2360 the same as the utility itself: that is the -config
2361 command line option can be used to specify an
2365 *) Move default behaviour from OPENSSL_config(). If appname is NULL
2366 use "openssl_conf" if filename is NULL use default openssl config file.
2369 *) Add an argument to OPENSSL_config() to allow the use of an alternative
2370 config section name. Add a new flag to tolerate a missing config file
2371 and move code to CONF_modules_load_file().
2374 *) Support for crypto accelerator cards from Accelerated Encryption
2375 Processing, www.aep.ie. (Use engine 'aep')
2376 The support was copied from 0.9.6c [engine] and adapted/corrected
2377 to work with the new engine framework.
2378 [AEP Inc. and Richard Levitte]
2380 *) Support for SureWare crypto accelerator cards from Baltimore
2381 Technologies. (Use engine 'sureware')
2382 The support was copied from 0.9.6c [engine] and adapted
2383 to work with the new engine framework.
2386 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
2387 make the newer ENGINE framework commands for the CHIL engine work.
2388 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
2390 *) Make it possible to produce shared libraries on ReliantUNIX.
2391 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
2393 *) Add the configuration target debug-linux-ppro.
2394 Make 'openssl rsa' use the general key loading routines
2395 implemented in apps.c, and make those routines able to
2396 handle the key format FORMAT_NETSCAPE and the variant
2398 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2400 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
2401 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2403 *) Add -keyform to rsautl, and document -engine.
2404 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
2406 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
2407 BIO_R_NO_SUCH_FILE error code rather than the generic
2408 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
2411 *) Add new functions
2413 ERR_peek_last_error_line
2414 ERR_peek_last_error_line_data.
2415 These are similar to
2418 ERR_peek_error_line_data,
2419 but report on the latest error recorded rather than the first one
2420 still in the error queue.
2421 [Ben Laurie, Bodo Moeller]
2423 *) default_algorithms option in ENGINE config module. This allows things
2425 default_algorithms = ALL
2426 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
2429 *) Prelminary ENGINE config module.
2432 *) New experimental application configuration code.
2435 *) Change the AES code to follow the same name structure as all other
2436 symmetric ciphers, and behave the same way. Move everything to
2437 the directory crypto/aes, thereby obsoleting crypto/rijndael.
2438 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2440 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
2441 [Ben Laurie and Theo de Raadt]
2443 *) Add option to output public keys in req command.
2444 [Massimiliano Pala madwolf@openca.org]
2446 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
2447 (up to about 10% better than before for P-192 and P-224).
2450 *) New functions/macros
2452 SSL_CTX_set_msg_callback(ctx, cb)
2453 SSL_CTX_set_msg_callback_arg(ctx, arg)
2454 SSL_set_msg_callback(ssl, cb)
2455 SSL_set_msg_callback_arg(ssl, arg)
2457 to request calling a callback function
2459 void cb(int write_p, int version, int content_type,
2460 const void *buf, size_t len, SSL *ssl, void *arg)
2462 whenever a protocol message has been completely received
2463 (write_p == 0) or sent (write_p == 1). Here 'version' is the
2464 protocol version according to which the SSL library interprets
2465 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
2466 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
2467 the content type as defined in the SSL 3.0/TLS 1.0 protocol
2468 specification (change_cipher_spec(20), alert(21), handshake(22)).
2469 'buf' and 'len' point to the actual message, 'ssl' to the
2470 SSL object, and 'arg' is the application-defined value set by
2471 SSL[_CTX]_set_msg_callback_arg().
2473 'openssl s_client' and 'openssl s_server' have new '-msg' options
2474 to enable a callback that displays all protocol messages.
2477 *) Change the shared library support so shared libraries are built as
2478 soon as the corresponding static library is finished, and thereby get
2479 openssl and the test programs linked against the shared library.
2480 This still only happens when the keyword "shard" has been given to
2481 the configuration scripts.
2483 NOTE: shared library support is still an experimental thing, and
2484 backward binary compatibility is still not guaranteed.
2485 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
2487 *) Add support for Subject Information Access extension.
2488 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2490 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
2491 additional bytes when new memory had to be allocated, not just
2492 when reusing an existing buffer.
2495 *) New command line and configuration option 'utf8' for the req command.
2496 This allows field values to be specified as UTF8 strings.
2499 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
2500 runs for the former and machine-readable output for the latter.
2503 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
2504 of the e-mail address in the DN (i.e., it will go into a certificate
2505 extension only). The new configuration file option 'email_in_dn = no'
2506 has the same effect.
2507 [Massimiliano Pala madwolf@openca.org]
2509 *) Change all functions with names starting with des_ to be starting
2510 with DES_ instead. Add wrappers that are compatible with libdes,
2511 but are named _ossl_old_des_*. Finally, add macros that map the
2512 des_* symbols to the corresponding _ossl_old_des_* if libdes
2513 compatibility is desired. If OpenSSL 0.9.6c compatibility is
2514 desired, the des_* symbols will be mapped to DES_*, with one
2517 Since we provide two compatibility mappings, the user needs to
2518 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
2519 compatibility is desired. The default (i.e., when that macro
2520 isn't defined) is OpenSSL 0.9.6c compatibility.
2522 There are also macros that enable and disable the support of old
2523 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
2524 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
2525 are defined, the default will apply: to support the old des routines.
2527 In either case, one must include openssl/des.h to get the correct
2528 definitions. Do not try to just include openssl/des_old.h, that
2531 NOTE: This is a major break of an old API into a new one. Software
2532 authors are encouraged to switch to the DES_ style functions. Some
2533 time in the future, des_old.h and the libdes compatibility functions
2534 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
2535 default), and then completely removed.
2538 *) Test for certificates which contain unsupported critical extensions.
2539 If such a certificate is found during a verify operation it is
2540 rejected by default: this behaviour can be overridden by either
2541 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
2542 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
2543 X509_supported_extension() has also been added which returns 1 if a
2544 particular extension is supported.
2547 *) Modify the behaviour of EVP cipher functions in similar way to digests
2548 to retain compatibility with existing code.
2551 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
2552 compatibility with existing code. In particular the 'ctx' parameter does
2553 not have to be to be initialized before the call to EVP_DigestInit() and
2554 it is tidied up after a call to EVP_DigestFinal(). New function
2555 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
2556 EVP_MD_CTX_copy() changed to not require the destination to be
2557 initialized valid and new function EVP_MD_CTX_copy_ex() added which
2558 requires the destination to be valid.
2560 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
2561 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
2564 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
2565 so that complete 'Handshake' protocol structures are kept in memory
2566 instead of overwriting 'msg_type' and 'length' with 'body' data.
2569 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
2570 [Massimo Santin via Richard Levitte]
2572 *) Major restructuring to the underlying ENGINE code. This includes
2573 reduction of linker bloat, separation of pure "ENGINE" manipulation
2574 (initialisation, etc) from functionality dealing with implementations
2575 of specific crypto iterfaces. This change also introduces integrated
2576 support for symmetric ciphers and digest implementations - so ENGINEs
2577 can now accelerate these by providing EVP_CIPHER and EVP_MD
2578 implementations of their own. This is detailed in crypto/engine/README
2579 as it couldn't be adequately described here. However, there are a few
2580 API changes worth noting - some RSA, DSA, DH, and RAND functions that
2581 were changed in the original introduction of ENGINE code have now
2582 reverted back - the hooking from this code to ENGINE is now a good
2583 deal more passive and at run-time, operations deal directly with
2584 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
2585 dereferencing through an ENGINE pointer any more. Also, the ENGINE
2586 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
2587 they were not being used by the framework as there is no concept of a
2588 BIGNUM_METHOD and they could not be generalised to the new
2589 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
2590 ENGINE_cpy() has been removed as it cannot be consistently defined in
2594 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
2597 *) Change mkdef.pl to sort symbols that get the same entry number,
2598 and make sure the automatically generated functions ERR_load_*
2599 become part of libeay.num as well.
2602 *) New function SSL_renegotiate_pending(). This returns true once
2603 renegotiation has been requested (either SSL_renegotiate() call
2604 or HelloRequest/ClientHello receveived from the peer) and becomes
2605 false once a handshake has been completed.
2606 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
2607 sends a HelloRequest, but does not ensure that a handshake takes
2608 place. SSL_renegotiate_pending() is useful for checking if the
2609 client has followed the request.)
2612 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
2613 By default, clients may request session resumption even during
2614 renegotiation (if session ID contexts permit); with this option,
2615 session resumption is possible only in the first handshake.
2617 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
2618 more bits available for options that should not be part of
2619 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
2622 *) Add some demos for certificate and certificate request creation.
2625 *) Make maximum certificate chain size accepted from the peer application
2626 settable (SSL*_get/set_max_cert_list()), as proposed by
2627 "Douglas E. Engert" <deengert@anl.gov>.
2630 *) Add support for shared libraries for Unixware-7
2631 (Boyd Lynn Gerber <gerberb@zenez.com>).
2634 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
2635 be done prior to destruction. Use this to unload error strings from
2636 ENGINEs that load their own error strings. NB: This adds two new API
2637 functions to "get" and "set" this destroy handler in an ENGINE.
2640 *) Alter all existing ENGINE implementations (except "openssl" and
2641 "openbsd") to dynamically instantiate their own error strings. This
2642 makes them more flexible to be built both as statically-linked ENGINEs
2643 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
2644 Also, add stub code to each that makes building them as self-contained
2645 shared-libraries easier (see README.ENGINE).
2648 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
2649 implementations into applications that are completely implemented in
2650 self-contained shared-libraries. The "dynamic" ENGINE exposes control
2651 commands that can be used to configure what shared-library to load and
2652 to control aspects of the way it is handled. Also, made an update to
2653 the README.ENGINE file that brings its information up-to-date and
2654 provides some information and instructions on the "dynamic" ENGINE
2655 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
2658 *) Make it possible to unload ranges of ERR strings with a new
2659 "ERR_unload_strings" function.
2662 *) Add a copy() function to EVP_MD.
2665 *) Make EVP_MD routines take a context pointer instead of just the
2666 md_data void pointer.
2669 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
2670 that the digest can only process a single chunk of data
2671 (typically because it is provided by a piece of
2672 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
2673 is only going to provide a single chunk of data, and hence the
2674 framework needn't accumulate the data for oneshot drivers.
2677 *) As with "ERR", make it possible to replace the underlying "ex_data"
2678 functions. This change also alters the storage and management of global
2679 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
2680 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
2681 index counters. The API functions that use this state have been changed
2682 to take a "class_index" rather than pointers to the class's local STACK
2683 and counter, and there is now an API function to dynamically create new
2684 classes. This centralisation allows us to (a) plug a lot of the
2685 thread-safety problems that existed, and (b) makes it possible to clean
2686 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
2687 such data would previously have always leaked in application code and
2688 workarounds were in place to make the memory debugging turn a blind eye
2689 to it. Application code that doesn't use this new function will still
2690 leak as before, but their memory debugging output will announce it now
2691 rather than letting it slide.
2693 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
2694 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
2695 has a return value to indicate success or failure.
2698 *) Make it possible to replace the underlying "ERR" functions such that the
2699 global state (2 LHASH tables and 2 locks) is only used by the "default"
2700 implementation. This change also adds two functions to "get" and "set"
2701 the implementation prior to it being automatically set the first time
2702 any other ERR function takes place. Ie. an application can call "get",
2703 pass the return value to a module it has just loaded, and that module
2704 can call its own "set" function using that value. This means the
2705 module's "ERR" operations will use (and modify) the error state in the
2706 application and not in its own statically linked copy of OpenSSL code.
2709 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
2710 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
2711 the operation, and provides a more encapsulated way for external code
2712 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
2713 to use these functions rather than manually incrementing the counts.
2715 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
2718 *) Add EVP test program.
2721 *) Add symmetric cipher support to ENGINE. Expect the API to change!
2724 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
2725 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
2726 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
2727 These allow a CRL to be built without having to access X509_CRL fields
2728 directly. Modify 'ca' application to use new functions.
2731 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
2732 bug workarounds. Rollback attack detection is a security feature.
2733 The problem will only arise on OpenSSL servers when TLSv1 is not
2734 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
2735 Software authors not wanting to support TLSv1 will have special reasons
2736 for their choice and can explicitly enable this option.
2737 [Bodo Moeller, Lutz Jaenicke]
2739 *) Rationalise EVP so it can be extended: don't include a union of
2740 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
2741 (similar to those existing for EVP_CIPHER_CTX).
2746 EVP_MD_CTX_init(&md); /* new function call */
2747 EVP_DigestInit(&md, EVP_sha1());
2748 EVP_DigestUpdate(&md, in, len);
2749 EVP_DigestFinal(&md, out, NULL);
2750 EVP_MD_CTX_cleanup(&md); /* new function call */
2754 *) Make DES key schedule conform to the usual scheme, as well as
2755 correcting its structure. This means that calls to DES functions
2756 now have to pass a pointer to a des_key_schedule instead of a
2757 plain des_key_schedule (which was actually always a pointer
2760 des_key_schedule ks;
2762 des_set_key_checked(..., &ks);
2763 des_ncbc_encrypt(..., &ks, ...);
2765 (Note that a later change renames 'des_...' into 'DES_...'.)
2768 *) Initial reduction of linker bloat: the use of some functions, such as
2769 PEM causes large amounts of unused functions to be linked in due to
2770 poor organisation. For example pem_all.c contains every PEM function
2771 which has a knock on effect of linking in large amounts of (unused)
2772 ASN1 code. Grouping together similar functions and splitting unrelated
2773 functions prevents this.
2776 *) Cleanup of EVP macros.
2779 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
2780 correct _ecb suffix.
2783 *) Add initial OCSP responder support to ocsp application. The
2784 revocation information is handled using the text based index
2785 use by the ca application. The responder can either handle
2786 requests generated internally, supplied in files (for example
2787 via a CGI script) or using an internal minimal server.
2790 *) Add configuration choices to get zlib compression for TLS.
2793 *) Changes to Kerberos SSL for RFC 2712 compliance:
2794 1. Implemented real KerberosWrapper, instead of just using
2795 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
2796 2. Implemented optional authenticator field of KerberosWrapper.
2798 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
2799 and authenticator structs; see crypto/krb5/.
2801 Generalized Kerberos calls to support multiple Kerberos libraries.
2802 [Vern Staats <staatsvr@asc.hpc.mil>,
2803 Jeffrey Altman <jaltman@columbia.edu>
2804 via Richard Levitte]
2806 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
2807 already does with RSA. testdsa.h now has 'priv_key/pub_key'
2808 values for each of the key sizes rather than having just
2809 parameters (and 'speed' generating keys each time).
2812 *) Speed up EVP routines.
2815 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
2816 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
2817 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
2818 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
2820 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
2821 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
2822 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
2825 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
2827 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
2830 *) Added the OS2-EMX target.
2831 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
2833 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
2834 to support NCONF routines in extension code. New function CONF_set_nconf()
2835 to allow functions which take an NCONF to also handle the old LHASH
2836 structure: this means that the old CONF compatible routines can be
2837 retained (in particular wrt extensions) without having to duplicate the
2838 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
2841 *) Enhance the general user interface with mechanisms for inner control
2842 and with possibilities to have yes/no kind of prompts.
2845 *) Change all calls to low level digest routines in the library and
2846 applications to use EVP. Add missing calls to HMAC_cleanup() and
2847 don't assume HMAC_CTX can be copied using memcpy().
2848 [Verdon Walker <VWalker@novell.com>, Steve Henson]
2850 *) Add the possibility to control engines through control names but with
2851 arbitrary arguments instead of just a string.
2852 Change the key loaders to take a UI_METHOD instead of a callback
2853 function pointer. NOTE: this breaks binary compatibility with earlier
2854 versions of OpenSSL [engine].
2855 Adapt the nCipher code for these new conditions and add a card insertion
2859 *) Enhance the general user interface with mechanisms to better support
2860 dialog box interfaces, application-defined prompts, the possibility
2861 to use defaults (for example default passwords from somewhere else)
2862 and interrupts/cancellations.
2865 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
2866 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
2869 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
2870 tidy up some unnecessarily weird code in 'sk_new()').
2871 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
2873 *) Change the key loading routines for ENGINEs to use the same kind
2874 callback (pem_password_cb) as all other routines that need this
2878 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
2879 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
2880 than this minimum value is recommended.
2883 *) New random seeder for OpenVMS, using the system process statistics
2884 that are easily reachable.
2887 *) Windows apparently can't transparently handle global
2888 variables defined in DLLs. Initialisations such as:
2890 const ASN1_ITEM *it = &ASN1_INTEGER_it;
2892 wont compile. This is used by the any applications that need to
2893 declare their own ASN1 modules. This was fixed by adding the option
2894 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
2895 needed for static libraries under Win32.
2898 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
2899 setting of purpose and trust fields. New X509_STORE trust and
2900 purpose functions and tidy up setting in other SSL functions.
2903 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
2904 structure. These are inherited by X509_STORE_CTX when it is
2905 initialised. This allows various defaults to be set in the
2906 X509_STORE structure (such as flags for CRL checking and custom
2907 purpose or trust settings) for functions which only use X509_STORE_CTX
2908 internally such as S/MIME.
2910 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
2911 trust settings if they are not set in X509_STORE. This allows X509_STORE
2912 purposes and trust (in S/MIME for example) to override any set by default.
2914 Add command line options for CRL checking to smime, s_client and s_server
2918 *) Initial CRL based revocation checking. If the CRL checking flag(s)
2919 are set then the CRL is looked up in the X509_STORE structure and
2920 its validity and signature checked, then if the certificate is found
2921 in the CRL the verify fails with a revoked error.
2923 Various new CRL related callbacks added to X509_STORE_CTX structure.
2925 Command line options added to 'verify' application to support this.
2927 This needs some additional work, such as being able to handle multiple
2928 CRLs with different times, extension based lookup (rather than just
2929 by subject name) and ultimately more complete V2 CRL extension
2933 *) Add a general user interface API (crypto/ui/). This is designed
2934 to replace things like des_read_password and friends (backward
2935 compatibility functions using this new API are provided).
2936 The purpose is to remove prompting functions from the DES code
2937 section as well as provide for prompting through dialog boxes in
2938 a window system and the like.
2941 *) Add "ex_data" support to ENGINE so implementations can add state at a
2942 per-structure level rather than having to store it globally.
2945 *) Make it possible for ENGINE structures to be copied when retrieved by
2946 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
2947 This causes the "original" ENGINE structure to act like a template,
2948 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
2949 operational state can be localised to each ENGINE structure, despite the
2950 fact they all share the same "methods". New ENGINE structures returned in
2951 this case have no functional references and the return value is the single
2952 structural reference. This matches the single structural reference returned
2953 by ENGINE_by_id() normally, when it is incremented on the pre-existing
2957 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
2958 needs to match any other type at all we need to manually clear the
2962 *) Changes to the "openssl engine" utility to include;
2963 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
2964 about an ENGINE's available control commands.
2965 - executing control commands from command line arguments using the
2966 '-pre' and '-post' switches. '-post' is only used if '-t' is
2967 specified and the ENGINE is successfully initialised. The syntax for
2968 the individual commands are colon-separated, for example;
2969 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
2972 *) New dynamic control command support for ENGINEs. ENGINEs can now
2973 declare their own commands (numbers), names (strings), descriptions,
2974 and input types for run-time discovery by calling applications. A
2975 subset of these commands are implicitly classed as "executable"
2976 depending on their input type, and only these can be invoked through
2977 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
2978 can be based on user input, config files, etc). The distinction is
2979 that "executable" commands cannot return anything other than a boolean
2980 result and can only support numeric or string input, whereas some
2981 discoverable commands may only be for direct use through
2982 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
2983 pointers, or other custom uses. The "executable" commands are to
2984 support parameterisations of ENGINE behaviour that can be
2985 unambiguously defined by ENGINEs and used consistently across any
2986 OpenSSL-based application. Commands have been added to all the
2987 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
2988 control over shared-library paths without source code alterations.
2991 *) Changed all ENGINE implementations to dynamically allocate their
2992 ENGINEs rather than declaring them statically. Apart from this being
2993 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
2994 this also allows the implementations to compile without using the
2995 internal engine_int.h header.
2998 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
2999 'const' value. Any code that should be able to modify a RAND_METHOD
3000 should already have non-const pointers to it (ie. they should only
3001 modify their own ones).
3004 *) Made a variety of little tweaks to the ENGINE code.
3005 - "atalla" and "ubsec" string definitions were moved from header files
3006 to C code. "nuron" string definitions were placed in variables
3007 rather than hard-coded - allowing parameterisation of these values
3008 later on via ctrl() commands.
3009 - Removed unused "#if 0"'d code.
3010 - Fixed engine list iteration code so it uses ENGINE_free() to release
3011 structural references.
3012 - Constified the RAND_METHOD element of ENGINE structures.
3013 - Constified various get/set functions as appropriate and added
3014 missing functions (including a catch-all ENGINE_cpy that duplicates
3015 all ENGINE values onto a new ENGINE except reference counts/state).
3016 - Removed NULL parameter checks in get/set functions. Setting a method
3017 or function to NULL is a way of cancelling out a previously set
3018 value. Passing a NULL ENGINE parameter is just plain stupid anyway
3019 and doesn't justify the extra error symbols and code.
3020 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
3021 flags from engine_int.h to engine.h.
3022 - Changed prototypes for ENGINE handler functions (init(), finish(),
3023 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
3026 *) Implement binary inversion algorithm for BN_mod_inverse in addition
3027 to the algorithm using long division. The binary algorithm can be
3028 used only if the modulus is odd. On 32-bit systems, it is faster
3029 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
3030 roughly 5-15% for 256-bit moduli), so we use it only for moduli
3031 up to 450 bits. In 64-bit environments, the binary algorithm
3032 appears to be advantageous for much longer moduli; here we use it
3033 for moduli up to 2048 bits.
3036 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
3037 could not support the combine flag in choice fields.
3040 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
3041 extensions from a certificate request to the certificate.
3044 *) Allow multiple 'certopt' and 'nameopt' options to be separated
3045 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
3046 file: this allows the display of the certificate about to be
3047 signed to be customised, to allow certain fields to be included
3048 or excluded and extension details. The old system didn't display
3049 multicharacter strings properly, omitted fields not in the policy
3050 and couldn't display additional details such as extensions.
3053 *) Function EC_POINTs_mul for multiple scalar multiplication
3054 of an arbitrary number of elliptic curve points
3055 \sum scalars[i]*points[i],
3056 optionally including the generator defined for the EC_GROUP:
3057 scalar*generator + \sum scalars[i]*points[i].
3059 EC_POINT_mul is a simple wrapper function for the typical case
3060 that the point list has just one item (besides the optional
3064 *) First EC_METHODs for curves over GF(p):
3066 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
3067 operations and provides various method functions that can also
3068 operate with faster implementations of modular arithmetic.
3070 EC_GFp_mont_method() reuses most functions that are part of
3071 EC_GFp_simple_method, but uses Montgomery arithmetic.
3073 [Bodo Moeller; point addition and point doubling
3074 implementation directly derived from source code provided by
3075 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
3077 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
3078 crypto/ec/ec_lib.c):
3080 Curves are EC_GROUP objects (with an optional group generator)
3081 based on EC_METHODs that are built into the library.
3083 Points are EC_POINT objects based on EC_GROUP objects.
3085 Most of the framework would be able to handle curves over arbitrary
3086 finite fields, but as there are no obvious types for fields other
3087 than GF(p), some functions are limited to that for now.
3090 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
3091 that the file contains a complete HTTP response.
3094 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
3095 change the def and num file printf format specifier from "%-40sXXX"
3096 to "%-39s XXX". The latter will always guarantee a space after the
3097 field while the former will cause them to run together if the field
3098 is 40 of more characters long.
3101 *) Constify the cipher and digest 'method' functions and structures
3102 and modify related functions to take constant EVP_MD and EVP_CIPHER
3106 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
3107 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
3110 *) Modify EVP_Digest*() routines so they now return values. Although the
3111 internal software routines can never fail additional hardware versions
3115 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
3117 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
3118 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
3121 ERR_R_NESTED_ASN1_ERROR
3123 ERR_R_MISSING_ASN1_EOS
3124 were 4 .. 9, conflicting with
3125 ERR_LIB_RSA (= ERR_R_RSA_LIB)
3127 ERR_LIB_PEM (= ERR_R_PEM_LIB).
3128 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
3130 Add new error code 'ERR_R_INTERNAL_ERROR'.
3133 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
3137 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
3138 sets the subject name for a new request or supersedes the
3139 subject name in a given request. Formats that can be parsed are
3140 'CN=Some Name, OU=myOU, C=IT'
3142 'CN=Some Name/OU=myOU/C=IT'.
3144 Add options '-batch' and '-verbose' to 'openssl req'.
3145 [Massimiliano Pala <madwolf@hackmasters.net>]
3147 *) Introduce the possibility to access global variables through
3148 functions on platform were that's the best way to handle exporting
3149 global variables in shared libraries. To enable this functionality,
3150 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
3151 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
3152 is normally done by Configure or something similar).
3154 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
3155 in the source file (foo.c) like this:
3157 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
3158 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
3160 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
3161 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
3163 OPENSSL_DECLARE_GLOBAL(int,foo);
3164 #define foo OPENSSL_GLOBAL_REF(foo)
3165 OPENSSL_DECLARE_GLOBAL(double,bar);
3166 #define bar OPENSSL_GLOBAL_REF(bar)
3168 The #defines are very important, and therefore so is including the
3169 header file everywhere where the defined globals are used.
3171 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
3172 of ASN.1 items, but that structure is a bit different.
3174 The largest change is in util/mkdef.pl which has been enhanced with
3175 better and easier to understand logic to choose which symbols should
3176 go into the Windows .def files as well as a number of fixes and code
3177 cleanup (among others, algorithm keywords are now sorted
3178 lexicographically to avoid constant rewrites).
3181 *) In BN_div() keep a copy of the sign of 'num' before writing the
3182 result to 'rm' because if rm==num the value will be overwritten
3183 and produce the wrong result if 'num' is negative: this caused
3184 problems with BN_mod() and BN_nnmod().
3187 *) Function OCSP_request_verify(). This checks the signature on an
3188 OCSP request and verifies the signer certificate. The signer
3189 certificate is just checked for a generic purpose and OCSP request
3193 *) Add OCSP_check_validity() function to check the validity of OCSP
3194 responses. OCSP responses are prepared in real time and may only
3195 be a few seconds old. Simply checking that the current time lies
3196 between thisUpdate and nextUpdate max reject otherwise valid responses
3197 caused by either OCSP responder or client clock inaccuracy. Instead
3198 we allow thisUpdate and nextUpdate to fall within a certain period of
3199 the current time. The age of the response can also optionally be
3200 checked. Two new options -validity_period and -status_age added to
3204 *) If signature or public key algorithm is unrecognized print out its
3205 OID rather that just UNKNOWN.
3208 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
3209 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
3210 ID to be generated from the issuer certificate alone which can then be
3211 passed to OCSP_id_issuer_cmp().
3214 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
3215 ASN1 modules to export functions returning ASN1_ITEM pointers
3216 instead of the ASN1_ITEM structures themselves. This adds several
3217 new macros which allow the underlying ASN1 function/structure to
3218 be accessed transparently. As a result code should not use ASN1_ITEM
3219 references directly (such as &X509_it) but instead use the relevant
3220 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
3221 use of the new ASN1 code on platforms where exporting structures
3222 is problematical (for example in shared libraries) but exporting
3223 functions returning pointers to structures is not.
3226 *) Add support for overriding the generation of SSL/TLS session IDs.
3227 These callbacks can be registered either in an SSL_CTX or per SSL.
3228 The purpose of this is to allow applications to control, if they wish,
3229 the arbitrary values chosen for use as session IDs, particularly as it
3230 can be useful for session caching in multiple-server environments. A
3231 command-line switch for testing this (and any client code that wishes
3232 to use such a feature) has been added to "s_server".
3233 [Geoff Thorpe, Lutz Jaenicke]
3235 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
3236 of the form '#if defined(...) || defined(...) || ...' and
3237 '#if !defined(...) && !defined(...) && ...'. This also avoids
3238 the growing number of special cases it was previously handling.
3241 *) Make all configuration macros available for application by making
3242 sure they are available in opensslconf.h, by giving them names starting
3243 with "OPENSSL_" to avoid conflicts with other packages and by making
3244 sure e_os2.h will cover all platform-specific cases together with
3246 Additionally, it is now possible to define configuration/platform-
3247 specific names (called "system identities"). In the C code, these
3248 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
3249 macro with the name beginning with "OPENSSL_SYS_", which is determined
3250 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
3254 *) New option -set_serial to 'req' and 'x509' this allows the serial
3255 number to use to be specified on the command line. Previously self
3256 signed certificates were hard coded with serial number 0 and the
3257 CA options of 'x509' had to use a serial number in a file which was
3261 *) New options to 'ca' utility to support V2 CRL entry extensions.
3262 Currently CRL reason, invalidity date and hold instruction are
3263 supported. Add new CRL extensions to V3 code and some new objects.
3266 *) New function EVP_CIPHER_CTX_set_padding() this is used to
3267 disable standard block padding (aka PKCS#5 padding) in the EVP
3268 API, which was previously mandatory. This means that the data is
3269 not padded in any way and so the total length much be a multiple
3270 of the block size, otherwise an error occurs.
3273 *) Initial (incomplete) OCSP SSL support.
3276 *) New function OCSP_parse_url(). This splits up a URL into its host,
3277 port and path components: primarily to parse OCSP URLs. New -url
3278 option to ocsp utility.
3281 *) New nonce behavior. The return value of OCSP_check_nonce() now
3282 reflects the various checks performed. Applications can decide
3283 whether to tolerate certain situations such as an absent nonce
3284 in a response when one was present in a request: the ocsp application
3285 just prints out a warning. New function OCSP_add1_basic_nonce()
3286 this is to allow responders to include a nonce in a response even if
3287 the request is nonce-less.
3290 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
3291 skipped when using openssl x509 multiple times on a single input file,
3292 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
3295 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
3296 set string type: to handle setting ASN1_TIME structures. Fix ca
3297 utility to correctly initialize revocation date of CRLs.
3300 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
3301 the clients preferred ciphersuites and rather use its own preferences.
3302 Should help to work around M$ SGC (Server Gated Cryptography) bug in
3303 Internet Explorer by ensuring unchanged hash method during stepup.
3304 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
3307 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
3308 to aes and add a new 'exist' option to print out symbols that don't
3312 *) Additional options to ocsp utility to allow flags to be set and
3313 additional certificates supplied.
3316 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
3317 OCSP client a number of certificate to only verify the response
3321 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
3322 handle the new API. Currently only ECB, CBC modes supported. Add new
3325 Add TLS AES ciphersuites as described in RFC3268, "Advanced
3326 Encryption Standard (AES) Ciphersuites for Transport Layer
3327 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
3328 not enabled by default and were not part of the "ALL" ciphersuite
3329 alias because they were not yet official; they could be
3330 explicitly requested by specifying the "AESdraft" ciphersuite
3331 group alias. In the final release of OpenSSL 0.9.7, the group
3332 alias is called "AES" and is part of "ALL".)
3333 [Ben Laurie, Steve Henson, Bodo Moeller]
3335 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
3336 request to response.
3339 *) Functions for OCSP responders. OCSP_request_onereq_count(),
3340 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
3341 extract information from a certificate request. OCSP_response_create()
3342 creates a response and optionally adds a basic response structure.
3343 OCSP_basic_add1_status() adds a complete single response to a basic
3344 response and returns the OCSP_SINGLERESP structure just added (to allow
3345 extensions to be included for example). OCSP_basic_add1_cert() adds a
3346 certificate to a basic response and OCSP_basic_sign() signs a basic
3347 response with various flags. New helper functions ASN1_TIME_check()
3348 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
3349 (converts ASN1_TIME to GeneralizedTime).
3352 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
3353 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
3354 structure from a certificate. X509_pubkey_digest() digests the public_key
3355 contents: this is used in various key identifiers.
3358 *) Make sk_sort() tolerate a NULL argument.
3359 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
3361 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
3362 passed by the function are trusted implicitly. If any of them signed the
3363 response then it is assumed to be valid and is not verified.
3366 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
3367 to data. This was previously part of the PKCS7 ASN1 code. This
3368 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
3369 [Steve Henson, reported by Kenneth R. Robinette
3370 <support@securenetterm.com>]
3372 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
3373 routines: without these tracing memory leaks is very painful.
3374 Fix leaks in PKCS12 and PKCS7 routines.
3377 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
3378 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
3379 effectively meant GeneralizedTime would never be used. Now it
3380 is initialised to -1 but X509_time_adj() now has to check the value
3381 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
3382 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
3383 [Steve Henson, reported by Kenneth R. Robinette
3384 <support@securenetterm.com>]
3386 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
3387 result in a zero length in the ASN1_INTEGER structure which was
3388 not consistent with the structure when d2i_ASN1_INTEGER() was used
3389 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
3390 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
3391 where it did not print out a minus for negative ASN1_INTEGER.
3394 *) Add summary printout to ocsp utility. The various functions which
3395 convert status values to strings have been renamed to:
3396 OCSP_response_status_str(), OCSP_cert_status_str() and
3397 OCSP_crl_reason_str() and are no longer static. New options
3398 to verify nonce values and to disable verification. OCSP response
3399 printout format cleaned up.
3402 *) Add additional OCSP certificate checks. These are those specified
3403 in RFC2560. This consists of two separate checks: the CA of the
3404 certificate being checked must either be the OCSP signer certificate
3405 or the issuer of the OCSP signer certificate. In the latter case the
3406 OCSP signer certificate must contain the OCSP signing extended key
3407 usage. This check is performed by attempting to match the OCSP
3408 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
3409 in the OCSP_CERTID structures of the response.
3412 *) Initial OCSP certificate verification added to OCSP_basic_verify()
3413 and related routines. This uses the standard OpenSSL certificate
3414 verify routines to perform initial checks (just CA validity) and
3415 to obtain the certificate chain. Then additional checks will be
3416 performed on the chain. Currently the root CA is checked to see
3417 if it is explicitly trusted for OCSP signing. This is used to set
3418 a root CA as a global signing root: that is any certificate that
3419 chains to that CA is an acceptable OCSP signing certificate.
3422 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
3423 extensions from a separate configuration file.
3424 As when reading extensions from the main configuration file,
3425 the '-extensions ...' option may be used for specifying the
3427 [Massimiliano Pala <madwolf@comune.modena.it>]
3429 *) New OCSP utility. Allows OCSP requests to be generated or
3430 read. The request can be sent to a responder and the output
3431 parsed, outputed or printed in text form. Not complete yet:
3432 still needs to check the OCSP response validity.
3435 *) New subcommands for 'openssl ca':
3436 'openssl ca -status <serial>' prints the status of the cert with
3437 the given serial number (according to the index file).
3438 'openssl ca -updatedb' updates the expiry status of certificates
3440 [Massimiliano Pala <madwolf@comune.modena.it>]
3442 *) New '-newreq-nodes' command option to CA.pl. This is like
3443 '-newreq', but calls 'openssl req' with the '-nodes' option
3444 so that the resulting key is not encrypted.
3445 [Damien Miller <djm@mindrot.org>]
3447 *) New configuration for the GNU Hurd.
3448 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
3450 *) Initial code to implement OCSP basic response verify. This
3451 is currently incomplete. Currently just finds the signer's
3452 certificate and verifies the signature on the response.
3455 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
3456 value of OPENSSLDIR. This is available via the new '-d' option
3457 to 'openssl version', and is also included in 'openssl version -a'.
3460 *) Allowing defining memory allocation callbacks that will be given
3461 file name and line number information in additional arguments
3462 (a const char* and an int). The basic functionality remains, as
3463 well as the original possibility to just replace malloc(),
3464 realloc() and free() by functions that do not know about these
3465 additional arguments. To register and find out the current
3466 settings for extended allocation functions, the following
3467 functions are provided:
3469 CRYPTO_set_mem_ex_functions
3470 CRYPTO_set_locked_mem_ex_functions
3471 CRYPTO_get_mem_ex_functions
3472 CRYPTO_get_locked_mem_ex_functions
3474 These work the same way as CRYPTO_set_mem_functions and friends.
3475 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
3476 extended allocation function is enabled.
3477 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
3478 a conventional allocation function is enabled.
3479 [Richard Levitte, Bodo Moeller]
3481 *) Finish off removing the remaining LHASH function pointer casts.
3482 There should no longer be any prototype-casting required when using
3483 the LHASH abstraction, and any casts that remain are "bugs". See
3484 the callback types and macros at the head of lhash.h for details
3485 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
3488 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
3489 If /dev/[u]random devices are not available or do not return enough
3490 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
3492 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
3493 /etc/entropy will be queried once each in this sequence, quering stops
3494 when enough entropy was collected without querying more sockets.
3497 *) Change the Unix RAND_poll() variant to be able to poll several
3498 random devices, as specified by DEVRANDOM, until a sufficient amount
3499 of data has been collected. We spend at most 10 ms on each file
3500 (select timeout) and read in non-blocking mode. DEVRANDOM now
3501 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
3502 (previously it was just the string "/dev/urandom"), so on typical
3503 platforms the 10 ms delay will never occur.
3504 Also separate out the Unix variant to its own file, rand_unix.c.
3505 For VMS, there's a currently-empty rand_vms.c.
3508 *) Move OCSP client related routines to ocsp_cl.c. These
3509 provide utility functions which an application needing
3510 to issue a request to an OCSP responder and analyse the
3511 response will typically need: as opposed to those which an
3512 OCSP responder itself would need which will be added later.
3514 OCSP_request_sign() signs an OCSP request with an API similar
3515 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
3516 response. OCSP_response_get1_basic() extracts basic response
3517 from response. OCSP_resp_find_status(): finds and extracts status
3518 information from an OCSP_CERTID structure (which will be created
3519 when the request structure is built). These are built from lower
3520 level functions which work on OCSP_SINGLERESP structures but
3521 wont normally be used unless the application wishes to examine
3522 extensions in the OCSP response for example.
3524 Replace nonce routines with a pair of functions.
3525 OCSP_request_add1_nonce() adds a nonce value and optionally
3526 generates a random value. OCSP_check_nonce() checks the
3527 validity of the nonce in an OCSP response.
3530 *) Change function OCSP_request_add() to OCSP_request_add0_id().
3531 This doesn't copy the supplied OCSP_CERTID and avoids the
3532 need to free up the newly created id. Change return type
3533 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
3534 This can then be used to add extensions to the request.
3535 Deleted OCSP_request_new(), since most of its functionality
3536 is now in OCSP_REQUEST_new() (and the case insensitive name
3537 clash) apart from the ability to set the request name which
3538 will be added elsewhere.
3541 *) Update OCSP API. Remove obsolete extensions argument from
3542 various functions. Extensions are now handled using the new
3543 OCSP extension code. New simple OCSP HTTP function which
3544 can be used to send requests and parse the response.
3547 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
3548 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
3549 uses the special reorder version of SET OF to sort the attributes
3550 and reorder them to match the encoded order. This resolves a long
3551 standing problem: a verify on a PKCS7 structure just after signing
3552 it used to fail because the attribute order did not match the
3553 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
3554 it uses the received order. This is necessary to tolerate some broken
3555 software that does not order SET OF. This is handled by encoding
3556 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
3557 to produce the required SET OF.
3560 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
3561 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
3562 files to get correct declarations of the ASN.1 item variables.
3565 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
3566 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
3567 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
3568 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
3569 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
3570 ASN1_ITEM and no wrapper functions.
3573 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
3574 replace the old function pointer based I/O routines. Change most of
3575 the *_d2i_bio() and *_d2i_fp() functions to use these.
3578 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
3579 lines, recognice more "algorithms" that can be deselected, and make
3580 it complain about algorithm deselection that isn't recognised.
3583 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
3584 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
3585 to use new functions. Add NO_ASN1_OLD which can be set to remove
3586 some old style ASN1 functions: this can be used to determine if old
3587 code will still work when these eventually go away.
3590 *) New extension functions for OCSP structures, these follow the
3591 same conventions as certificates and CRLs.
3594 *) New function X509V3_add1_i2d(). This automatically encodes and
3595 adds an extension. Its behaviour can be customised with various
3596 flags to append, replace or delete. Various wrappers added for
3597 certifcates and CRLs.
3600 *) Fix to avoid calling the underlying ASN1 print routine when
3601 an extension cannot be parsed. Correct a typo in the
3602 OCSP_SERVICELOC extension. Tidy up print OCSP format.
3605 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
3606 entries for variables.
3609 *) Add functionality to apps/openssl.c for detecting locking
3610 problems: As the program is single-threaded, all we have
3611 to do is register a locking callback using an array for
3612 storing which locks are currently held by the program.
3615 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
3616 SSL_get_ex_data_X509_STORE_idx(), which is used in
3617 ssl_verify_cert_chain() and thus can be called at any time
3618 during TLS/SSL handshakes so that thread-safety is essential.
3619 Unfortunately, the ex_data design is not at all suited
3620 for multi-threaded use, so it probably should be abolished.
3623 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
3624 [Broadcom, tweaked and integrated by Geoff Thorpe]
3626 *) Move common extension printing code to new function
3627 X509V3_print_extensions(). Reorganise OCSP print routines and
3628 implement some needed OCSP ASN1 functions. Add OCSP extensions.
3631 *) New function X509_signature_print() to remove duplication in some
3635 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
3636 set (this was treated exactly the same as SET OF previously). This
3637 is used to reorder the STACK representing the structure to match the
3638 encoding. This will be used to get round a problem where a PKCS7
3639 structure which was signed could not be verified because the STACK
3640 order did not reflect the encoded order.
3643 *) Reimplement the OCSP ASN1 module using the new code.
3646 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
3647 for its ASN1 operations. The old style function pointers still exist
3648 for now but they will eventually go away.
3651 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
3652 completely replaces the old ASN1 functionality with a table driven
3653 encoder and decoder which interprets an ASN1_ITEM structure describing
3654 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
3655 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
3656 has also been converted to the new form.
3659 *) Change BN_mod_exp_recp so that negative moduli are tolerated
3660 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
3661 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
3662 for negative moduli.
3665 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
3666 of not touching the result's sign bit.
3669 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
3673 *) Changed the LHASH code to use prototypes for callbacks, and created
3674 macros to declare and implement thin (optionally static) functions
3675 that provide type-safety and avoid function pointer casting for the
3676 type-specific callbacks.
3679 *) Added Kerberos Cipher Suites to be used with TLS, as written in
3681 [Veers Staats <staatsvr@asc.hpc.mil>,
3682 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
3684 *) Reformat the FAQ so the different questions and answers can be divided
3685 in sections depending on the subject.
3688 *) Have the zlib compression code load ZLIB.DLL dynamically under
3692 *) New function BN_mod_sqrt for computing square roots modulo a prime
3693 (using the probabilistic Tonelli-Shanks algorithm unless
3694 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
3695 be handled deterministically).
3696 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3698 *) Make BN_mod_inverse faster by explicitly handling small quotients
3699 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
3700 512 bits], about 30% for larger ones [1024 or 2048 bits].)
3703 *) New function BN_kronecker.
3706 *) Fix BN_gcd so that it works on negative inputs; the result is
3707 positive unless both parameters are zero.
3708 Previously something reasonably close to an infinite loop was
3709 possible because numbers could be growing instead of shrinking
3710 in the implementation of Euclid's algorithm.
3713 *) Fix BN_is_word() and BN_is_one() macros to take into account the
3714 sign of the number in question.
3716 Fix BN_is_word(a,w) to work correctly for w == 0.
3718 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
3719 because its test if the absolute value of 'a' equals 'w'.
3720 Note that BN_abs_is_word does *not* handle w == 0 reliably;
3721 it exists mostly for use in the implementations of BN_is_zero(),
3722 BN_is_one(), and BN_is_word().
3725 *) New function BN_swap.
3728 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
3729 the exponentiation functions are more likely to produce reasonable
3730 results on negative inputs.
3733 *) Change BN_mod_mul so that the result is always non-negative.
3734 Previously, it could be negative if one of the factors was negative;
3735 I don't think anyone really wanted that behaviour.
3738 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
3739 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
3740 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
3741 and add new functions:
3750 BN_mod_lshift1_quick
3754 These functions always generate non-negative results.
3756 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
3757 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
3759 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
3760 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
3761 be reduced modulo m.
3762 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3765 The following entry accidentily appeared in the CHANGES file
3766 distributed with OpenSSL 0.9.7. The modifications described in
3767 it do *not* apply to OpenSSL 0.9.7.
3769 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3770 was actually never needed) and in BN_mul(). The removal in BN_mul()
3771 required a small change in bn_mul_part_recursive() and the addition
3772 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3773 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3774 bn_sub_words() and bn_add_words() except they take arrays with
3779 *) In 'openssl passwd', verify passwords read from the terminal
3780 unless the '-salt' option is used (which usually means that
3781 verification would just waste user's time since the resulting
3782 hash is going to be compared with some given password hash)
3783 or the new '-noverify' option is used.
3785 This is an incompatible change, but it does not affect
3786 non-interactive use of 'openssl passwd' (passwords on the command
3787 line, '-stdin' option, '-in ...' option) and thus should not
3791 *) Remove all references to RSAref, since there's no more need for it.
3794 *) Make DSO load along a path given through an environment variable
3795 (SHLIB_PATH) with shl_load().
3798 *) Constify the ENGINE code as a result of BIGNUM constification.
3799 Also constify the RSA code and most things related to it. In a
3800 few places, most notable in the depth of the ASN.1 code, ugly
3801 casts back to non-const were required (to be solved at a later
3805 *) Make it so the openssl application has all engines loaded by default.
3808 *) Constify the BIGNUM routines a little more.
3811 *) Add the following functions:
3813 ENGINE_load_cswift()
3815 ENGINE_load_atalla()
3817 ENGINE_load_builtin_engines()
3819 That way, an application can itself choose if external engines that
3820 are built-in in OpenSSL shall ever be used or not. The benefit is
3821 that applications won't have to be linked with libdl or other dso
3822 libraries unless it's really needed.
3824 Changed 'openssl engine' to load all engines on demand.
3825 Changed the engine header files to avoid the duplication of some
3826 declarations (they differed!).
3829 *) 'openssl engine' can now list capabilities.
3832 *) Better error reporting in 'openssl engine'.
3835 *) Never call load_dh_param(NULL) in s_server.
3838 *) Add engine application. It can currently list engines by name and
3839 identity, and test if they are actually available.
3842 *) Improve RPM specification file by forcing symbolic linking and making
3843 sure the installed documentation is also owned by root.root.
3844 [Damien Miller <djm@mindrot.org>]
3846 *) Give the OpenSSL applications more possibilities to make use of
3847 keys (public as well as private) handled by engines.
3850 *) Add OCSP code that comes from CertCo.
3853 *) Add VMS support for the Rijndael code.
3856 *) Added untested support for Nuron crypto accelerator.
3859 *) Add support for external cryptographic devices. This code was
3860 previously distributed separately as the "engine" branch.
3861 [Geoff Thorpe, Richard Levitte]
3863 *) Rework the filename-translation in the DSO code. It is now possible to
3864 have far greater control over how a "name" is turned into a filename
3865 depending on the operating environment and any oddities about the
3866 different shared library filenames on each system.
3869 *) Support threads on FreeBSD-elf in Configure.
3872 *) Fix for SHA1 assembly problem with MASM: it produces
3873 warnings about corrupt line number information when assembling
3874 with debugging information. This is caused by the overlapping
3876 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
3879 NCONF_get_number() has no error checking at all. As a replacement,
3880 NCONF_get_number_e() is defined (_e for "error checking") and is
3881 promoted strongly. The old NCONF_get_number is kept around for
3882 binary backward compatibility.
3883 Make it possible for methods to load from something other than a BIO,
3884 by providing a function pointer that is given a name instead of a BIO.
3885 For example, this could be used to load configuration data from an
3889 *) Fix for non blocking accept BIOs. Added new I/O special reason
3890 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
3891 with non blocking I/O was not possible because no retry code was
3892 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
3896 *) Added the beginnings of Rijndael support.
3899 *) Fix for bug in DirectoryString mask setting. Add support for
3900 X509_NAME_print_ex() in 'req' and X509_print_ex() function
3901 to allow certificate printing to more controllable, additional
3902 'certopt' option to 'x509' to allow new printing options to be
3906 *) Clean old EAY MD5 hack from e_os.h.
3909 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
3911 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3912 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3913 [Joe Orton, Steve Henson]
3915 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
3917 *) Fix additional bug revealed by the NISCC test suite:
3919 Stop bug triggering large recursion when presented with
3920 certain ASN.1 tags (CVE-2003-0851)
3923 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
3925 *) Fix various bugs revealed by running the NISCC test suite:
3927 Stop out of bounds reads in the ASN1 code when presented with
3928 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3930 If verify callback ignores invalid public key errors don't try to check
3931 certificate signature with the NULL public key.
3935 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3936 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3940 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3941 extra data after the compression methods not only for TLS 1.0
3942 but also for SSL 3.0 (as required by the specification).
3943 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3945 *) Change X509_certificate_type() to mark the key as exported/exportable
3946 when it's 512 *bits* long, not 512 bytes.
3949 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
3951 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3952 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3953 a protocol version number mismatch like a decryption error
3954 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3957 *) Turn on RSA blinding by default in the default implementation
3958 to avoid a timing attack. Applications that don't want it can call
3959 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3960 They would be ill-advised to do so in most cases.
3961 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3963 *) Change RSA blinding code so that it works when the PRNG is not
3964 seeded (in this case, the secret RSA exponent is abused as
3965 an unpredictable seed -- if it is not unpredictable, there
3966 is no point in blinding anyway). Make RSA blinding thread-safe
3967 by remembering the creator's thread ID in rsa->blinding and
3968 having all other threads use local one-time blinding factors
3969 (this requires more computation than sharing rsa->blinding, but
3970 avoids excessive locking; and if an RSA object is not shared
3971 between threads, blinding will still be very fast).
3974 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
3976 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3977 via timing by performing a MAC computation even if incorrrect
3978 block cipher padding has been found. This is a countermeasure
3979 against active attacks where the attacker has to distinguish
3980 between bad padding and a MAC verification error. (CVE-2003-0078)
3982 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3983 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3984 Martin Vuagnoux (EPFL, Ilion)]
3986 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
3988 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
3989 memory from it's contents. This is done with a counter that will
3990 place alternating values in each byte. This can be used to solve
3991 two issues: 1) the removal of calls to memset() by highly optimizing
3992 compilers, and 2) cleansing with other values than 0, since those can
3993 be read through on certain media, for example a swap space on disk.
3996 *) Bugfix: client side session caching did not work with external caching,
3997 because the session->cipher setting was not restored when reloading
3998 from the external cache. This problem was masked, when
3999 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
4000 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
4003 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
4004 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
4005 [Zeev Lieber <zeev-l@yahoo.com>]
4007 *) Undo an undocumented change introduced in 0.9.6e which caused
4008 repeated calls to OpenSSL_add_all_ciphers() and
4009 OpenSSL_add_all_digests() to be ignored, even after calling
4013 *) Change the default configuration reader to deal with last line not
4014 being properly terminated.
4017 *) Change X509_NAME_cmp() so it applies the special rules on handling
4018 DN values that are of type PrintableString, as well as RDNs of type
4019 emailAddress where the value has the type ia5String.
4020 [stefank@valicert.com via Richard Levitte]
4022 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
4023 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
4024 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
4025 the bitwise-OR of the two for use by the majority of applications
4026 wanting this behaviour, and update the docs. The documented
4027 behaviour and actual behaviour were inconsistent and had been
4028 changing anyway, so this is more a bug-fix than a behavioural
4030 [Geoff Thorpe, diagnosed by Nadav Har'El]
4032 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
4033 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
4036 *) Fix initialization code race conditions in
4037 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
4038 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
4039 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
4040 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
4041 ssl2_get_cipher_by_char(),
4042 ssl3_get_cipher_by_char().
4043 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
4045 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
4046 the cached sessions are flushed, as the remove_cb() might use ex_data
4047 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
4048 (see [openssl.org #212]).
4049 [Geoff Thorpe, Lutz Jaenicke]
4051 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
4052 length, instead of the encoding length to d2i_ASN1_OBJECT.
4055 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
4057 *) [In 0.9.6g-engine release:]
4058 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
4059 [Lynn Gazis <lgazis@rainbow.com>]
4061 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
4063 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
4064 and get fix the header length calculation.
4065 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
4066 Alon Kantor <alonk@checkpoint.com> (and others),
4069 *) Use proper error handling instead of 'assertions' in buffer
4070 overflow checks added in 0.9.6e. This prevents DoS (the
4071 assertions could call abort()).
4072 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
4074 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
4076 *) Add various sanity checks to asn1_get_length() to reject
4077 the ASN1 length bytes if they exceed sizeof(long), will appear
4078 negative or the content length exceeds the length of the
4080 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4082 *) Fix cipher selection routines: ciphers without encryption had no flags
4083 for the cipher strength set and where therefore not handled correctly
4084 by the selection routines (PR #130).
4087 *) Fix EVP_dsa_sha macro.
4091 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
4092 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
4093 that was added in OpenSSL 0.9.6d.
4095 As the countermeasure turned out to be incompatible with some
4096 broken SSL implementations, the new option is part of SSL_OP_ALL.
4097 SSL_OP_ALL is usually employed when compatibility with weird SSL
4098 implementations is desired (e.g. '-bugs' option to 's_client' and
4099 's_server'), so the new option is automatically set in many
4103 *) Changes in security patch:
4105 Changes marked "(CHATS)" were sponsored by the Defense Advanced
4106 Research Projects Agency (DARPA) and Air Force Research Laboratory,
4107 Air Force Materiel Command, USAF, under agreement number
4110 *) Add various sanity checks to asn1_get_length() to reject
4111 the ASN1 length bytes if they exceed sizeof(long), will appear
4112 negative or the content length exceeds the length of the
4113 supplied buffer. (CVE-2002-0659)
4114 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4116 *) Assertions for various potential buffer overflows, not known to
4118 [Ben Laurie (CHATS)]
4120 *) Various temporary buffers to hold ASCII versions of integers were
4121 too small for 64 bit platforms. (CVE-2002-0655)
4122 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
4124 *) Remote buffer overflow in SSL3 protocol - an attacker could
4125 supply an oversized session ID to a client. (CVE-2002-0656)
4126 [Ben Laurie (CHATS)]
4128 *) Remote buffer overflow in SSL2 protocol - an attacker could
4129 supply an oversized client master key. (CVE-2002-0656)
4130 [Ben Laurie (CHATS)]
4132 Changes between 0.9.6c and 0.9.6d [9 May 2002]
4134 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
4135 encoded as NULL) with id-dsa-with-sha1.
4136 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
4138 *) Check various X509_...() return values in apps/req.c.
4139 [Nils Larsch <nla@trustcenter.de>]
4141 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
4142 an end-of-file condition would erronously be flagged, when the CRLF
4143 was just at the end of a processed block. The bug was discovered when
4144 processing data through a buffering memory BIO handing the data to a
4145 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
4146 <ptsekov@syntrex.com> and Nedelcho Stanev.
4149 *) Implement a countermeasure against a vulnerability recently found
4150 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
4151 before application data chunks to avoid the use of known IVs
4152 with data potentially chosen by the attacker.
4155 *) Fix length checks in ssl3_get_client_hello().
4158 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
4159 to prevent ssl3_read_internal() from incorrectly assuming that
4160 ssl3_read_bytes() found application data while handshake
4161 processing was enabled when in fact s->s3->in_read_app_data was
4162 merely automatically cleared during the initial handshake.
4163 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
4165 *) Fix object definitions for Private and Enterprise: they were not
4166 recognized in their shortname (=lowercase) representation. Extend
4167 obj_dat.pl to issue an error when using undefined keywords instead
4168 of silently ignoring the problem (Svenning Sorensen
4169 <sss@sss.dnsalias.net>).
4172 *) Fix DH_generate_parameters() so that it works for 'non-standard'
4173 generators, i.e. generators other than 2 and 5. (Previously, the
4174 code did not properly initialise the 'add' and 'rem' values to
4175 BN_generate_prime().)
4177 In the new general case, we do not insist that 'generator' is
4178 actually a primitive root: This requirement is rather pointless;
4179 a generator of the order-q subgroup is just as good, if not
4183 *) Map new X509 verification errors to alerts. Discovered and submitted by
4184 Tom Wu <tom@arcot.com>.
4187 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
4188 returning non-zero before the data has been completely received
4189 when using non-blocking I/O.
4190 [Bodo Moeller; problem pointed out by John Hughes]
4192 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
4193 [Ben Laurie, Lutz Jaenicke]
4195 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
4196 Yoram Zahavi <YoramZ@gilian.com>).
4199 *) Add information about CygWin 1.3 and on, and preserve proper
4200 configuration for the versions before that.
4201 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
4203 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
4204 check whether we deal with a copy of a session and do not delete from
4205 the cache in this case. Problem reported by "Izhar Shoshani Levi"
4206 <izhar@checkpoint.com>.
4209 *) Do not store session data into the internal session cache, if it
4210 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
4211 flag is set). Proposed by Aslam <aslam@funk.com>.
4214 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
4218 *) [In 0.9.6d-engine release:]
4219 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4220 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4222 *) Add the configuration target linux-s390x.
4223 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
4225 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
4226 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
4227 variable as an indication that a ClientHello message has been
4228 received. As the flag value will be lost between multiple
4229 invocations of ssl3_accept when using non-blocking I/O, the
4230 function may not be aware that a handshake has actually taken
4231 place, thus preventing a new session from being added to the
4234 To avoid this problem, we now set s->new_session to 2 instead of
4235 using a local variable.
4236 [Lutz Jaenicke, Bodo Moeller]
4238 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
4239 if the SSL_R_LENGTH_MISMATCH error is detected.
4240 [Geoff Thorpe, Bodo Moeller]
4242 *) New 'shared_ldflag' column in Configure platform table.
4245 *) Fix EVP_CIPHER_mode macro.
4246 ["Dan S. Camper" <dan@bti.net>]
4248 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
4249 type, we must throw them away by setting rr->length to 0.
4250 [D P Chang <dpc@qualys.com>]
4252 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
4254 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
4255 <Dominikus.Scherkl@biodata.com>. (The previous implementation
4256 worked incorrectly for those cases where range = 10..._2 and
4257 3*range is two bits longer than range.)
4260 *) Only add signing time to PKCS7 structures if it is not already
4264 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
4265 OBJ_ld_ce should be OBJ_id_ce.
4266 Also some ip-pda OIDs in crypto/objects/objects.txt were
4267 incorrect (cf. RFC 3039).
4268 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
4270 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
4271 returns early because it has nothing to do.
4272 [Andy Schneider <andy.schneider@bjss.co.uk>]
4274 *) [In 0.9.6c-engine release:]
4275 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
4276 [Andy Schneider <andy.schneider@bjss.co.uk>]
4278 *) [In 0.9.6c-engine release:]
4279 Add support for Cryptographic Appliance's keyserver technology.
4280 (Use engine 'keyclient')
4281 [Cryptographic Appliances and Geoff Thorpe]
4283 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
4284 is called via tools/c89.sh because arguments have to be
4285 rearranged (all '-L' options must appear before the first object
4287 [Richard Shapiro <rshapiro@abinitio.com>]
4289 *) [In 0.9.6c-engine release:]
4290 Add support for Broadcom crypto accelerator cards, backported
4292 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
4294 *) [In 0.9.6c-engine release:]
4295 Add support for SureWare crypto accelerator cards from
4296 Baltimore Technologies. (Use engine 'sureware')
4297 [Baltimore Technologies and Mark Cox]
4299 *) [In 0.9.6c-engine release:]
4300 Add support for crypto accelerator cards from Accelerated
4301 Encryption Processing, www.aep.ie. (Use engine 'aep')
4302 [AEP Inc. and Mark Cox]
4304 *) Add a configuration entry for gcc on UnixWare.
4305 [Gary Benson <gbenson@redhat.com>]
4307 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
4308 messages are stored in a single piece (fixed-length part and
4309 variable-length part combined) and fix various bugs found on the way.
4312 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
4313 instead. BIO_gethostbyname() does not know what timeouts are
4314 appropriate, so entries would stay in cache even when they have
4316 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
4318 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
4319 faced with a pathologically small ClientHello fragment that does
4320 not contain client_version: Instead of aborting with an error,
4321 simply choose the highest available protocol version (i.e.,
4322 TLS 1.0 unless it is disabled). In practice, ClientHello
4323 messages are never sent like this, but this change gives us
4324 strictly correct behaviour at least for TLS.
4327 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
4328 never resets s->method to s->ctx->method when called from within
4329 one of the SSL handshake functions.
4330 [Bodo Moeller; problem pointed out by Niko Baric]
4332 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
4333 (sent using the client's version number) if client_version is
4334 smaller than the protocol version in use. Also change
4335 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
4336 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
4337 the client will at least see that alert.
4340 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
4344 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
4345 client receives HelloRequest while in a handshake.
4346 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
4348 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
4349 should end in 'break', not 'goto end' which circuments various
4350 cleanups done in state SSL_ST_OK. But session related stuff
4351 must be disabled for SSL_ST_OK in the case that we just sent a
4354 Also avoid some overhead by not calling ssl_init_wbio_buffer()
4355 before just sending a HelloRequest.
4356 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
4358 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
4359 reveal whether illegal block cipher padding was found or a MAC
4360 verification error occured. (Neither SSLerr() codes nor alerts
4361 are directly visible to potential attackers, but the information
4362 may leak via logfiles.)
4364 Similar changes are not required for the SSL 2.0 implementation
4365 because the number of padding bytes is sent in clear for SSL 2.0,
4366 and the extra bytes are just ignored. However ssl/s2_pkt.c
4367 failed to verify that the purported number of padding bytes is in
4371 *) Add OpenUNIX-8 support including shared libraries
4372 (Boyd Lynn Gerber <gerberb@zenez.com>).
4375 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
4376 'wristwatch attack' using huge encoding parameters (cf.
4377 James H. Manger's CRYPTO 2001 paper). Note that the
4378 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
4379 encoding parameters and hence was not vulnerable.
4382 *) BN_sqr() bug fix.
4383 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
4385 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
4386 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
4387 followed by modular reduction.
4388 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
4390 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
4391 equivalent based on BN_pseudo_rand() instead of BN_rand().
4394 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
4395 This function was broken, as the check for a new client hello message
4396 to handle SGC did not allow these large messages.
4397 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
4400 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
4403 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
4404 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
4407 *) Rework the configuration and shared library support for Tru64 Unix.
4408 The configuration part makes use of modern compiler features and
4409 still retains old compiler behavior for those that run older versions
4410 of the OS. The shared library support part includes a variant that
4411 uses the RPATH feature, and is available through the special
4412 configuration target "alpha-cc-rpath", which will never be selected
4414 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
4416 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
4417 with the same message size as in ssl3_get_certificate_request().
4418 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
4419 messages might inadvertently be reject as too long.
4420 [Petr Lampa <lampa@fee.vutbr.cz>]
4422 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
4425 *) Modified SSL library such that the verify_callback that has been set
4426 specificly for an SSL object with SSL_set_verify() is actually being
4427 used. Before the change, a verify_callback set with this function was
4428 ignored and the verify_callback() set in the SSL_CTX at the time of
4429 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
4430 to allow the necessary settings.
4433 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
4434 explicitly to NULL, as at least on Solaris 8 this seems not always to be
4435 done automatically (in contradiction to the requirements of the C
4436 standard). This made problems when used from OpenSSH.
4439 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
4440 dh->length and always used
4442 BN_rand_range(priv_key, dh->p).
4444 BN_rand_range() is not necessary for Diffie-Hellman, and this
4445 specific range makes Diffie-Hellman unnecessarily inefficient if
4446 dh->length (recommended exponent length) is much smaller than the
4447 length of dh->p. We could use BN_rand_range() if the order of
4448 the subgroup was stored in the DH structure, but we only have
4453 BN_rand(priv_key, l, ...)
4455 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
4461 RSA_eay_public_encrypt
4462 RSA_eay_private_decrypt
4463 RSA_eay_private_encrypt (signing)
4464 RSA_eay_public_decrypt (signature verification)
4466 (default implementations for RSA_public_encrypt,
4467 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
4468 always reject numbers >= n.
4471 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
4472 to synchronize access to 'locking_thread'. This is necessary on
4473 systems where access to 'locking_thread' (an 'unsigned long'
4474 variable) is not atomic.
4477 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
4478 *before* setting the 'crypto_lock_rand' flag. The previous code had
4479 a race condition if 0 is a valid thread ID.
4480 [Travis Vitek <vitek@roguewave.com>]
4482 *) Add support for shared libraries under Irix.
4483 [Albert Chin-A-Young <china@thewrittenword.com>]
4485 *) Add configuration option to build on Linux on both big-endian and
4487 [Ralf Baechle <ralf@uni-koblenz.de>]
4489 *) Add the possibility to create shared libraries on HP-UX.
4492 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
4494 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
4495 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
4496 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
4497 PRNG state recovery was possible based on the output of
4498 one PRNG request appropriately sized to gain knowledge on
4499 'md' followed by enough consecutive 1-byte PRNG requests
4500 to traverse all of 'state'.
4502 1. When updating 'md_local' (the current thread's copy of 'md')
4503 during PRNG output generation, hash all of the previous
4504 'md_local' value, not just the half used for PRNG output.
4506 2. Make the number of bytes from 'state' included into the hash
4507 independent from the number of PRNG bytes requested.
4509 The first measure alone would be sufficient to avoid
4510 Markku-Juhani's attack. (Actually it had never occurred
4511 to me that the half of 'md_local' used for chaining was the
4512 half from which PRNG output bytes were taken -- I had always
4513 assumed that the secret half would be used.) The second
4514 measure makes sure that additional data from 'state' is never
4515 mixed into 'md_local' in small portions; this heuristically
4516 further strengthens the PRNG.
4519 *) Fix crypto/bn/asm/mips3.s.
4522 *) When only the key is given to "enc", the IV is undefined. Print out
4523 an error message in this case.
4526 *) Handle special case when X509_NAME is empty in X509 printing routines.
4529 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
4530 positive and less than q.
4533 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
4534 used: it isn't thread safe and the add_lock_callback should handle
4536 [Paul Rose <Paul.Rose@bridge.com>]
4538 *) Verify that incoming data obeys the block size in
4539 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
4543 [Ulf Möller, Bodo Möller]
4545 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
4546 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
4547 when fixing the server behaviour for backwards-compatible 'client
4548 hello' messages. (Note that the attack is impractical against
4549 SSL 3.0 and TLS 1.0 anyway because length and version checking
4550 means that the probability of guessing a valid ciphertext is
4551 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
4554 Before 0.9.5, the countermeasure (hide the error by generating a
4555 random 'decryption result') did not work properly because
4556 ERR_clear_error() was missing, meaning that SSL_get_error() would
4557 detect the supposedly ignored error.
4559 Both problems are now fixed.
4562 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
4563 (previously it was 1024).
4566 *) Fix for compatibility mode trust settings: ignore trust settings
4567 unless some valid trust or reject settings are present.
4570 *) Fix for blowfish EVP: its a variable length cipher.
4573 *) Fix various bugs related to DSA S/MIME verification. Handle missing
4574 parameters in DSA public key structures and return an error in the
4575 DSA routines if parameters are absent.
4578 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
4579 in the current directory if neither $RANDFILE nor $HOME was set.
4580 RAND_file_name() in 0.9.6a returned NULL in this case. This has
4581 caused some confusion to Windows users who haven't defined $HOME.
4582 Thus RAND_file_name() is changed again: e_os.h can define a
4583 DEFAULT_HOME, which will be used if $HOME is not set.
4584 For Windows, we use "C:"; on other platforms, we still require
4585 environment variables.
4587 *) Move 'if (!initialized) RAND_poll()' into regions protected by
4588 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
4589 having multiple threads call RAND_poll() concurrently.
4592 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
4593 combination of a flag and a thread ID variable.
4594 Otherwise while one thread is in ssleay_rand_bytes (which sets the
4595 flag), *other* threads can enter ssleay_add_bytes without obeying
4596 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
4597 that they do not hold after the first thread unsets add_do_not_lock).
4600 *) Change bctest again: '-x' expressions are not available in all
4604 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
4606 *) Fix a couple of memory leaks in PKCS7_dataDecode()
4607 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
4609 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
4610 the default extension for executables, if any. Also, make the perl
4611 scripts that use symlink() to test if it really exists and use "cp"
4612 if it doesn't. All this made OpenSSL compilable and installable in
4616 *) Fix for asn1_GetSequence() for indefinite length constructed data.
4617 If SEQUENCE is length is indefinite just set c->slen to the total
4618 amount of data available.
4619 [Steve Henson, reported by shige@FreeBSD.org]
4620 [This change does not apply to 0.9.7.]
4622 *) Change bctest to avoid here-documents inside command substitution
4623 (workaround for FreeBSD /bin/sh bug).
4624 For compatibility with Ultrix, avoid shell functions (introduced
4625 in the bctest version that searches along $PATH).
4628 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
4629 with des_encrypt() defined on some operating systems, like Solaris
4633 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
4634 On the Importance of Eliminating Errors in Cryptographic
4635 Computations, J. Cryptology 14 (2001) 2, 101-119,
4636 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
4639 *) MIPS assembler BIGNUM division bug fix.
4642 *) Disabled incorrect Alpha assembler code.
4645 *) Fix PKCS#7 decode routines so they correctly update the length
4646 after reading an EOC for the EXPLICIT tag.
4648 [This change does not apply to 0.9.7.]
4650 *) Fix bug in PKCS#12 key generation routines. This was triggered
4651 if a 3DES key was generated with a 0 initial byte. Include
4652 PKCS12_BROKEN_KEYGEN compilation option to retain the old
4653 (but broken) behaviour.
4656 *) Enhance bctest to search for a working bc along $PATH and print
4658 [Tim Rice <tim@multitalents.net> via Richard Levitte]
4660 *) Fix memory leaks in err.c: free err_data string if necessary;
4661 don't write to the wrong index in ERR_set_error_data.
4664 *) Implement ssl23_peek (analogous to ssl23_read), which previously
4668 *) Replace rdtsc with _emit statements for VC++ version 5.
4669 [Jeremy Cooper <jeremy@baymoo.org>]
4671 *) Make it possible to reuse SSLv2 sessions.
4674 *) In copy_email() check for >= 0 as a return value for
4675 X509_NAME_get_index_by_NID() since 0 is a valid index.
4676 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
4678 *) Avoid coredump with unsupported or invalid public keys by checking if
4679 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
4680 PKCS7_verify() fails with non detached data.
4683 *) Don't use getenv in library functions when run as setuid/setgid.
4684 New function OPENSSL_issetugid().
4687 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
4688 due to incorrect handling of multi-threading:
4690 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
4692 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
4694 3. Count how many times MemCheck_off() has been called so that
4695 nested use can be treated correctly. This also avoids
4696 inband-signalling in the previous code (which relied on the
4697 assumption that thread ID 0 is impossible).
4700 *) Add "-rand" option also to s_client and s_server.
4703 *) Fix CPU detection on Irix 6.x.
4704 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
4705 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4707 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
4710 [This change does not apply to 0.9.7.]
4712 *) Use the cached encoding of an X509_NAME structure rather than
4713 copying it. This is apparently the reason for the libsafe "errors"
4714 but the code is actually correct.
4717 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
4718 Bleichenbacher's DSA attack.
4719 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
4720 to be set and top=0 forces the highest bit to be set; top=-1 is new
4721 and leaves the highest bit random.
4722 [Ulf Moeller, Bodo Moeller]
4724 *) In the NCONF_...-based implementations for CONF_... queries
4725 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
4726 a temporary CONF structure with the data component set to NULL
4727 (which gives segmentation faults in lh_retrieve).
4728 Instead, use NULL for the CONF pointer in CONF_get_string and
4729 CONF_get_number (which may use environment variables) and directly
4730 return NULL from CONF_get_section.
4733 *) Fix potential buffer overrun for EBCDIC.
4736 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
4737 keyUsage if basicConstraints absent for a CA.
4740 *) Make SMIME_write_PKCS7() write mail header values with a format that
4741 is more generally accepted (no spaces before the semicolon), since
4742 some programs can't parse those values properly otherwise. Also make
4743 sure BIO's that break lines after each write do not create invalid
4747 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
4748 macros previously used would not encode an empty SEQUENCE OF
4749 and break the signature.
4751 [This change does not apply to 0.9.7.]
4753 *) Zero the premaster secret after deriving the master secret in
4757 *) Add some EVP_add_digest_alias registrations (as found in
4758 OpenSSL_add_all_digests()) to SSL_library_init()
4759 aka OpenSSL_add_ssl_algorithms(). This provides improved
4760 compatibility with peers using X.509 certificates
4761 with unconventional AlgorithmIdentifier OIDs.
4764 *) Fix for Irix with NO_ASM.
4765 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4767 *) ./config script fixes.
4768 [Ulf Moeller, Richard Levitte]
4770 *) Fix 'openssl passwd -1'.
4773 *) Change PKCS12_key_gen_asc() so it can cope with non null
4774 terminated strings whose length is passed in the passlen
4775 parameter, for example from PEM callbacks. This was done
4776 by adding an extra length parameter to asc2uni().
4777 [Steve Henson, reported by <oddissey@samsung.co.kr>]
4779 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
4780 call failed, free the DSA structure.
4783 *) Fix to uni2asc() to cope with zero length Unicode strings.
4784 These are present in some PKCS#12 files.
4787 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
4788 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
4789 when writing a 32767 byte record.
4790 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
4792 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
4793 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
4795 (RSA objects have a reference count access to which is protected
4796 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
4797 so they are meant to be shared between threads.)
4798 [Bodo Moeller, Geoff Thorpe; original patch submitted by
4799 "Reddie, Steven" <Steven.Reddie@ca.com>]
4801 *) Fix a deadlock in CRYPTO_mem_leaks().
4804 *) Use better test patterns in bntest.
4807 *) rand_win.c fix for Borland C.
4810 *) BN_rshift bugfix for n == 0.
4813 *) Add a 'bctest' script that checks for some known 'bc' bugs
4814 so that 'make test' does not abort just because 'bc' is broken.
4817 *) Store verify_result within SSL_SESSION also for client side to
4818 avoid potential security hole. (Re-used sessions on the client side
4819 always resulted in verify_result==X509_V_OK, not using the original
4820 result of the server certificate verification.)
4823 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
4824 SSL3_RT_APPLICATION_DATA, return 0.
4825 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
4829 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
4830 releases, have been re-implemented by renaming the previous
4831 implementations of ssl2_read and ssl3_read to ssl2_read_internal
4832 and ssl3_read_internal, respectively, and adding 'peek' parameters
4833 to them. The new ssl[23]_{read,peek} functions are calls to
4834 ssl[23]_read_internal with the 'peek' flag set appropriately.
4835 A 'peek' parameter has also been added to ssl3_read_bytes, which
4836 does the actual work for ssl3_read_internal.
4839 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
4840 the method-specific "init()" handler. Also clean up ex_data after
4841 calling the method-specific "finish()" handler. Previously, this was
4842 happening the other way round.
4845 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
4846 The previous value, 12, was not always sufficient for BN_mod_exp().
4849 *) Make sure that shared libraries get the internal name engine with
4850 the full version number and not just 0. This should mark the
4851 shared libraries as not backward compatible. Of course, this should
4852 be changed again when we can guarantee backward binary compatibility.
4855 *) Fix typo in get_cert_by_subject() in by_dir.c
4856 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
4858 *) Rework the system to generate shared libraries:
4860 - Make note of the expected extension for the shared libraries and
4861 if there is a need for symbolic links from for example libcrypto.so.0
4862 to libcrypto.so.0.9.7. There is extended info in Configure for
4865 - Make as few rebuilds of the shared libraries as possible.
4867 - Still avoid linking the OpenSSL programs with the shared libraries.
4869 - When installing, install the shared libraries separately from the
4873 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
4875 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
4876 and not in SSL_clear because the latter is also used by the
4877 accept/connect functions; previously, the settings made by
4878 SSL_set_read_ahead would be lost during the handshake.
4879 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
4881 *) Correct util/mkdef.pl to be selective about disabled algorithms.
4882 Previously, it would create entries for disableed algorithms no
4886 *) Added several new manual pages for SSL_* function.
4889 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
4891 *) In ssl23_get_client_hello, generate an error message when faced
4892 with an initial SSL 3.0/TLS record that is too small to contain the
4893 first two bytes of the ClientHello message, i.e. client_version.
4894 (Note that this is a pathologic case that probably has never happened
4895 in real life.) The previous approach was to use the version number
4896 from the record header as a substitute; but our protocol choice
4897 should not depend on that one because it is not authenticated
4898 by the Finished messages.
4901 *) More robust randomness gathering functions for Windows.
4902 [Jeffrey Altman <jaltman@columbia.edu>]
4904 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
4905 not set then we don't setup the error code for issuer check errors
4906 to avoid possibly overwriting other errors which the callback does
4907 handle. If an application does set the flag then we assume it knows
4908 what it is doing and can handle the new informational codes
4912 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
4913 a general "ANY" type, as such it should be able to decode anything
4914 including tagged types. However it didn't check the class so it would
4915 wrongly interpret tagged types in the same way as their universal
4916 counterpart and unknown types were just rejected. Changed so that the
4917 tagged and unknown types are handled in the same way as a SEQUENCE:
4918 that is the encoding is stored intact. There is also a new type
4919 "V_ASN1_OTHER" which is used when the class is not universal, in this
4920 case we have no idea what the actual type is so we just lump them all
4924 *) On VMS, stdout may very well lead to a file that is written to
4925 in a record-oriented fashion. That means that every write() will
4926 write a separate record, which will be read separately by the
4927 programs trying to read from it. This can be very confusing.
4929 The solution is to put a BIO filter in the way that will buffer
4930 text until a linefeed is reached, and then write everything a
4931 line at a time, so every record written will be an actual line,
4932 not chunks of lines and not (usually doesn't happen, but I've
4933 seen it once) several lines in one record. BIO_f_linebuffer() is
4936 Currently, it's a VMS-only method, because that's where it has
4937 been tested well enough.
4940 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
4941 it can return incorrect results.
4942 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
4943 but it was in 0.9.6-beta[12].)
4946 *) Disable the check for content being present when verifying detached
4947 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
4948 include zero length content when signing messages.
4951 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
4952 BIO_ctrl (for BIO pairs).
4955 *) Add DSO method for VMS.
4958 *) Bug fix: Montgomery multiplication could produce results with the
4962 *) Add RPM specification openssl.spec and modify it to build three
4963 packages. The default package contains applications, application
4964 documentation and run-time libraries. The devel package contains
4965 include files, static libraries and function documentation. The
4966 doc package contains the contents of the doc directory. The original
4967 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
4970 *) Add a large number of documentation files for many SSL routines.
4971 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
4973 *) Add a configuration entry for Sony News 4.
4974 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
4976 *) Don't set the two most significant bits to one when generating a
4977 random number < q in the DSA library.
4980 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
4981 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
4982 the underlying transport is blocking) if a handshake took place.
4983 (The default behaviour is needed by applications such as s_client
4984 and s_server that use select() to determine when to use SSL_read;
4985 but for applications that know in advance when to expect data, it
4986 just makes things more complicated.)
4989 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
4993 *) Add a few more EBCDIC conditionals that make `req' and `x509'
4994 work better on such systems.
4995 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
4997 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
4998 Update PKCS12_parse() so it copies the friendlyName and the
4999 keyid to the certificates aux info.
5002 *) Fix bug in PKCS7_verify() which caused an infinite loop
5003 if there was more than one signature.
5004 [Sven Uszpelkat <su@celocom.de>]
5006 *) Major change in util/mkdef.pl to include extra information
5007 about each symbol, as well as presentig variables as well
5008 as functions. This change means that there's n more need
5009 to rebuild the .num files when some algorithms are excluded.
5012 *) Allow the verify time to be set by an application,
5013 rather than always using the current time.
5016 *) Phase 2 verify code reorganisation. The certificate
5017 verify code now looks up an issuer certificate by a
5018 number of criteria: subject name, authority key id
5019 and key usage. It also verifies self signed certificates
5020 by the same criteria. The main comparison function is
5021 X509_check_issued() which performs these checks.
5023 Lot of changes were necessary in order to support this
5024 without completely rewriting the lookup code.
5026 Authority and subject key identifier are now cached.
5028 The LHASH 'certs' is X509_STORE has now been replaced
5029 by a STACK_OF(X509_OBJECT). This is mainly because an
5030 LHASH can't store or retrieve multiple objects with
5031 the same hash value.
5033 As a result various functions (which were all internal
5034 use only) have changed to handle the new X509_STORE
5035 structure. This will break anything that messed round
5036 with X509_STORE internally.
5038 The functions X509_STORE_add_cert() now checks for an
5039 exact match, rather than just subject name.
5041 The X509_STORE API doesn't directly support the retrieval
5042 of multiple certificates matching a given criteria, however
5043 this can be worked round by performing a lookup first
5044 (which will fill the cache with candidate certificates)
5045 and then examining the cache for matches. This is probably
5046 the best we can do without throwing out X509_LOOKUP
5047 entirely (maybe later...).
5049 The X509_VERIFY_CTX structure has been enhanced considerably.
5051 All certificate lookup operations now go via a get_issuer()
5052 callback. Although this currently uses an X509_STORE it
5053 can be replaced by custom lookups. This is a simple way
5054 to bypass the X509_STORE hackery necessary to make this
5055 work and makes it possible to use more efficient techniques
5056 in future. A very simple version which uses a simple
5057 STACK for its trusted certificate store is also provided
5058 using X509_STORE_CTX_trusted_stack().
5060 The verify_cb() and verify() callbacks now have equivalents
5061 in the X509_STORE_CTX structure.
5063 X509_STORE_CTX also has a 'flags' field which can be used
5064 to customise the verify behaviour.
5067 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
5068 excludes S/MIME capabilities.
5071 *) When a certificate request is read in keep a copy of the
5072 original encoding of the signed data and use it when outputing
5073 again. Signatures then use the original encoding rather than
5074 a decoded, encoded version which may cause problems if the
5075 request is improperly encoded.
5078 *) For consistency with other BIO_puts implementations, call
5079 buffer_write(b, ...) directly in buffer_puts instead of calling
5082 In BIO_puts, increment b->num_write as in BIO_write.
5083 [Peter.Sylvester@EdelWeb.fr]
5085 *) Fix BN_mul_word for the case where the word is 0. (We have to use
5086 BN_zero, we may not return a BIGNUM with an array consisting of
5090 *) Avoid calling abort() from within the library when problems are
5091 detected, except if preprocessor symbols have been defined
5092 (such as REF_CHECK, BN_DEBUG etc.).
5095 *) New openssl application 'rsautl'. This utility can be
5096 used for low level RSA operations. DER public key
5097 BIO/fp routines also added.
5100 *) New Configure entry and patches for compiling on QNX 4.
5101 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
5103 *) A demo state-machine implementation was sponsored by
5104 Nuron (http://www.nuron.com/) and is now available in
5105 demos/state_machine.
5108 *) New options added to the 'dgst' utility for signature
5109 generation and verification.
5112 *) Unrecognized PKCS#7 content types are now handled via a
5113 catch all ASN1_TYPE structure. This allows unsupported
5114 types to be stored as a "blob" and an application can
5115 encode and decode it manually.
5118 *) Fix various signed/unsigned issues to make a_strex.c
5120 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
5122 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
5123 length if passed a buffer. ASN1_INTEGER_to_BN failed
5124 if passed a NULL BN and its argument was negative.
5125 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
5127 *) Modification to PKCS#7 encoding routines to output definite
5128 length encoding. Since currently the whole structures are in
5129 memory there's not real point in using indefinite length
5130 constructed encoding. However if OpenSSL is compiled with
5131 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
5134 *) Added BIO_vprintf() and BIO_vsnprintf().
5137 *) Added more prefixes to parse for in the the strings written
5138 through a logging bio, to cover all the levels that are available
5139 through syslog. The prefixes are now:
5141 PANIC, EMERG, EMR => LOG_EMERG
5142 ALERT, ALR => LOG_ALERT
5143 CRIT, CRI => LOG_CRIT
5144 ERROR, ERR => LOG_ERR
5145 WARNING, WARN, WAR => LOG_WARNING
5146 NOTICE, NOTE, NOT => LOG_NOTICE
5147 INFO, INF => LOG_INFO
5148 DEBUG, DBG => LOG_DEBUG
5150 and as before, if none of those prefixes are present at the
5151 beginning of the string, LOG_ERR is chosen.
5153 On Win32, the LOG_* levels are mapped according to this:
5155 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
5156 LOG_WARNING => EVENTLOG_WARNING_TYPE
5157 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
5161 *) Made it possible to reconfigure with just the configuration
5162 argument "reconf" or "reconfigure". The command line arguments
5163 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
5164 and are retrieved from there when reconfiguring.
5168 [Assar Westerlund <assar@sics.se>, Richard Levitte]
5170 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
5173 *) The obj_dat.pl script was messing up the sorting of object
5174 names. The reason was that it compared the quoted version
5175 of strings as a result "OCSP" > "OCSP Signing" because
5176 " > SPACE. Changed script to store unquoted versions of
5177 names and add quotes on output. It was also omitting some
5178 names from the lookup table if they were given a default
5179 value (that is if SN is missing it is given the same
5180 value as LN and vice versa), these are now added on the
5181 grounds that if an object has a name we should be able to
5182 look it up. Finally added warning output when duplicate
5183 short or long names are found.
5186 *) Changes needed for Tandem NSK.
5187 [Scott Uroff <scott@xypro.com>]
5189 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
5190 RSA_padding_check_SSLv23(), special padding was never detected
5191 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
5192 version rollback attacks was not effective.
5194 In s23_clnt.c, don't use special rollback-attack detection padding
5195 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
5196 client; similarly, in s23_srvr.c, don't do the rollback check if
5197 SSL 2.0 is the only protocol enabled in the server.
5200 *) Make it possible to get hexdumps of unprintable data with 'openssl
5201 asn1parse'. By implication, the functions ASN1_parse_dump() and
5202 BIO_dump_indent() are added.
5205 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
5206 these print out strings and name structures based on various
5207 flags including RFC2253 support and proper handling of
5208 multibyte characters. Added options to the 'x509' utility
5209 to allow the various flags to be set.
5212 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
5213 Also change the functions X509_cmp_current_time() and
5214 X509_gmtime_adj() work with an ASN1_TIME structure,
5215 this will enable certificates using GeneralizedTime in validity
5216 dates to be checked.
5219 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
5220 negative public key encodings) on by default,
5221 NO_NEG_PUBKEY_BUG can be set to disable it.
5224 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
5225 content octets. An i2c_ASN1_OBJECT is unnecessary because
5226 the encoding can be trivially obtained from the structure.
5229 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
5230 not read locks (CRYPTO_r_[un]lock).
5233 *) A first attempt at creating official support for shared
5234 libraries through configuration. I've kept it so the
5235 default is static libraries only, and the OpenSSL programs
5236 are always statically linked for now, but there are
5237 preparations for dynamic linking in place.
5238 This has been tested on Linux and Tru64.
5241 *) Randomness polling function for Win9x, as described in:
5242 Peter Gutmann, Software Generation of Practically Strong
5246 *) Fix so PRNG is seeded in req if using an already existing
5250 *) New options to smime application. -inform and -outform
5251 allow alternative formats for the S/MIME message including
5252 PEM and DER. The -content option allows the content to be
5253 specified separately. This should allow things like Netscape
5254 form signing output easier to verify.
5257 *) Fix the ASN1 encoding of tags using the 'long form'.
5260 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
5261 STRING types. These convert content octets to and from the
5262 underlying type. The actual tag and length octets are
5263 already assumed to have been read in and checked. These
5264 are needed because all other string types have virtually
5265 identical handling apart from the tag. By having versions
5266 of the ASN1 functions that just operate on content octets
5267 IMPLICIT tagging can be handled properly. It also allows
5268 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
5269 and ASN1_INTEGER are identical apart from the tag.
5272 *) Change the handling of OID objects as follows:
5274 - New object identifiers are inserted in objects.txt, following
5275 the syntax given in objects.README.
5276 - objects.pl is used to process obj_mac.num and create a new
5278 - obj_dat.pl is used to create a new obj_dat.h, using the data in
5281 This is currently kind of a hack, and the perl code in objects.pl
5282 isn't very elegant, but it works as I intended. The simplest way
5283 to check that it worked correctly is to look in obj_dat.h and
5284 check the array nid_objs and make sure the objects haven't moved
5285 around (this is important!). Additions are OK, as well as
5286 consistent name changes.
5289 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
5292 *) Addition of the command line parameter '-rand file' to 'openssl req'.
5293 The given file adds to whatever has already been seeded into the
5294 random pool through the RANDFILE configuration file option or
5295 environment variable, or the default random state file.
5298 *) mkstack.pl now sorts each macro group into lexical order.
5299 Previously the output order depended on the order the files
5300 appeared in the directory, resulting in needless rewriting
5304 *) Patches to make OpenSSL compile under Win32 again. Mostly
5305 work arounds for the VC++ problem that it treats func() as
5306 func(void). Also stripped out the parts of mkdef.pl that
5307 added extra typesafe functions: these no longer exist.
5310 *) Reorganisation of the stack code. The macros are now all
5311 collected in safestack.h . Each macro is defined in terms of
5312 a "stack macro" of the form SKM_<name>(type, a, b). The
5313 DEBUG_SAFESTACK is now handled in terms of function casts,
5314 this has the advantage of retaining type safety without the
5315 use of additional functions. If DEBUG_SAFESTACK is not defined
5316 then the non typesafe macros are used instead. Also modified the
5317 mkstack.pl script to handle the new form. Needs testing to see
5318 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
5319 the default if no major problems. Similar behaviour for ASN1_SET_OF
5320 and PKCS12_STACK_OF.
5323 *) When some versions of IIS use the 'NET' form of private key the
5324 key derivation algorithm is different. Normally MD5(password) is
5325 used as a 128 bit RC4 key. In the modified case
5326 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
5327 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
5328 as the old Netscape_RSA functions except they have an additional
5329 'sgckey' parameter which uses the modified algorithm. Also added
5330 an -sgckey command line option to the rsa utility. Thanks to
5331 Adrian Peck <bertie@ncipher.com> for posting details of the modified
5332 algorithm to openssl-dev.
5335 *) The evp_local.h macros were using 'c.##kname' which resulted in
5336 invalid expansion on some systems (SCO 5.0.5 for example).
5337 Corrected to 'c.kname'.
5338 [Phillip Porch <root@theporch.com>]
5340 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
5341 a STACK of email addresses from a certificate or request, these look
5342 in the subject name and the subject alternative name extensions and
5343 omit any duplicate addresses.
5346 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
5347 This makes DSA verification about 2 % faster.
5350 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
5351 (meaning that now 2^5 values will be precomputed, which is only 4 KB
5352 plus overhead for 1024 bit moduli).
5353 This makes exponentiations about 0.5 % faster for 1024 bit
5354 exponents (as measured by "openssl speed rsa2048").
5357 *) Rename memory handling macros to avoid conflicts with other
5359 Malloc => OPENSSL_malloc
5360 Malloc_locked => OPENSSL_malloc_locked
5361 Realloc => OPENSSL_realloc
5362 Free => OPENSSL_free
5365 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
5366 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
5369 *) CygWin32 support.
5370 [John Jarvie <jjarvie@newsguy.com>]
5372 *) The type-safe stack code has been rejigged. It is now only compiled
5373 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
5374 by default all type-specific stack functions are "#define"d back to
5375 standard stack functions. This results in more streamlined output
5376 but retains the type-safety checking possibilities of the original
5380 *) The STACK code has been cleaned up, and certain type declarations
5381 that didn't make a lot of sense have been brought in line. This has
5382 also involved a cleanup of sorts in safestack.h to more correctly
5383 map type-safe stack functions onto their plain stack counterparts.
5384 This work has also resulted in a variety of "const"ifications of
5385 lots of the code, especially "_cmp" operations which should normally
5386 be prototyped with "const" parameters anyway.
5389 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
5390 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
5391 (The PRNG state consists of two parts, the large pool 'state' and 'md',
5392 where all of 'md' is used each time the PRNG is used, but 'state'
5393 is used only indexed by a cyclic counter. As entropy may not be
5394 well distributed from the beginning, 'md' is important as a
5395 chaining variable. However, the output function chains only half
5396 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
5397 all of 'md', and seeding with STATE_SIZE dummy bytes will result
5398 in all of 'state' being rewritten, with the new values depending
5399 on virtually all of 'md'. This overcomes the 80 bit limitation.)
5402 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
5403 the handshake is continued after ssl_verify_cert_chain();
5404 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
5405 can lead to 'unexplainable' connection aborts later.
5406 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
5408 *) Major EVP API cipher revision.
5409 Add hooks for extra EVP features. This allows various cipher
5410 parameters to be set in the EVP interface. Support added for variable
5411 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
5412 setting of RC2 and RC5 parameters.
5414 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
5417 Remove lots of duplicated code from the EVP library. For example *every*
5418 cipher init() function handles the 'iv' in the same way according to the
5419 cipher mode. They also all do nothing if the 'key' parameter is NULL and
5420 for CFB and OFB modes they zero ctx->num.
5422 New functionality allows removal of S/MIME code RC2 hack.
5424 Most of the routines have the same form and so can be declared in terms
5427 By shifting this to the top level EVP_CipherInit() it can be removed from
5428 all individual ciphers. If the cipher wants to handle IVs or keys
5429 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
5432 Change lots of functions like EVP_EncryptUpdate() to now return a
5433 value: although software versions of the algorithms cannot fail
5434 any installed hardware versions can.
5437 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
5438 this option is set, tolerate broken clients that send the negotiated
5439 protocol version number instead of the requested protocol version
5443 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
5444 i.e. non-zero for export ciphersuites, zero otherwise.
5445 Previous versions had this flag inverted, inconsistent with
5446 rsa_tmp_cb (..._TMP_RSA_CB).
5447 [Bodo Moeller; problem reported by Amit Chopra]
5449 *) Add missing DSA library text string. Work around for some IIS
5450 key files with invalid SEQUENCE encoding.
5453 *) Add a document (doc/standards.txt) that list all kinds of standards
5454 and so on that are implemented in OpenSSL.
5457 *) Enhance c_rehash script. Old version would mishandle certificates
5458 with the same subject name hash and wouldn't handle CRLs at all.
5459 Added -fingerprint option to crl utility, to support new c_rehash
5463 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
5466 *) Fix for SSL server purpose checking. Server checking was
5467 rejecting certificates which had extended key usage present
5468 but no ssl client purpose.
5469 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
5471 *) Make PKCS#12 code work with no password. The PKCS#12 spec
5472 is a little unclear about how a blank password is handled.
5473 Since the password in encoded as a BMPString with terminating
5474 double NULL a zero length password would end up as just the
5475 double NULL. However no password at all is different and is
5476 handled differently in the PKCS#12 key generation code. NS
5477 treats a blank password as zero length. MSIE treats it as no
5478 password on export: but it will try both on import. We now do
5479 the same: PKCS12_parse() tries zero length and no password if
5480 the password is set to "" or NULL (NULL is now a valid password:
5481 it wasn't before) as does the pkcs12 application.
5484 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
5485 perror when PEM_read_bio_X509_REQ fails, the error message must
5486 be obtained from the error queue.
5489 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
5490 it in ERR_remove_state if appropriate, and change ERR_get_state
5491 accordingly to avoid race conditions (this is necessary because
5492 thread_hash is no longer constant once set).
5495 *) Bugfix for linux-elf makefile.one.
5498 *) RSA_get_default_method() will now cause a default
5499 RSA_METHOD to be chosen if one doesn't exist already.
5500 Previously this was only set during a call to RSA_new()
5501 or RSA_new_method(NULL) meaning it was possible for
5502 RSA_get_default_method() to return NULL.
5505 *) Added native name translation to the existing DSO code
5506 that will convert (if the flag to do so is set) filenames
5507 that are sufficiently small and have no path information
5508 into a canonical native form. Eg. "blah" converted to
5509 "libblah.so" or "blah.dll" etc.
5512 *) New function ERR_error_string_n(e, buf, len) which is like
5513 ERR_error_string(e, buf), but writes at most 'len' bytes
5514 including the 0 terminator. For ERR_error_string_n, 'buf'
5516 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
5518 *) CONF library reworked to become more general. A new CONF
5519 configuration file reader "class" is implemented as well as a
5520 new functions (NCONF_*, for "New CONF") to handle it. The now
5521 old CONF_* functions are still there, but are reimplemented to
5522 work in terms of the new functions. Also, a set of functions
5523 to handle the internal storage of the configuration data is
5524 provided to make it easier to write new configuration file
5525 reader "classes" (I can definitely see something reading a
5526 configuration file in XML format, for example), called _CONF_*,
5527 or "the configuration storage API"...
5529 The new configuration file reading functions are:
5531 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
5532 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
5534 NCONF_default, NCONF_WIN32
5536 NCONF_dump_fp, NCONF_dump_bio
5538 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
5539 NCONF_new creates a new CONF object. This works in the same way
5540 as other interfaces in OpenSSL, like the BIO interface.
5541 NCONF_dump_* dump the internal storage of the configuration file,
5542 which is useful for debugging. All other functions take the same
5543 arguments as the old CONF_* functions wth the exception of the
5544 first that must be a `CONF *' instead of a `LHASH *'.
5546 To make it easer to use the new classes with the old CONF_* functions,
5547 the function CONF_set_default_method is provided.
5550 *) Add '-tls1' option to 'openssl ciphers', which was already
5551 mentioned in the documentation but had not been implemented.
5552 (This option is not yet really useful because even the additional
5553 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
5556 *) Initial DSO code added into libcrypto for letting OpenSSL (and
5557 OpenSSL-based applications) load shared libraries and bind to
5558 them in a portable way.
5559 [Geoff Thorpe, with contributions from Richard Levitte]
5561 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
5563 *) Make sure _lrotl and _lrotr are only used with MSVC.
5565 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
5566 (the default implementation of RAND_status).
5568 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
5569 to '-clrext' (= clear extensions), as intended and documented.
5570 [Bodo Moeller; inconsistency pointed out by Michael Attili
5573 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
5574 was larger than the MD block size.
5575 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
5577 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
5578 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
5579 using the passed key: if the passed key was a private key the result
5580 of X509_print(), for example, would be to print out all the private key
5584 *) des_quad_cksum() byte order bug fix.
5585 [Ulf Möller, using the problem description in krb4-0.9.7, where
5586 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
5588 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
5590 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
5592 *) For easily testing in shell scripts whether some command
5593 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
5594 returns with exit code 0 iff no command of the given name is available.
5595 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
5596 the output goes to stdout and nothing is printed to stderr.
5597 Additional arguments are always ignored.
5599 Since for each cipher there is a command of the same name,
5600 the 'no-cipher' compilation switches can be tested this way.
5602 ('openssl no-XXX' is not able to detect pseudo-commands such
5603 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
5606 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
5609 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
5610 is set; it will be thrown away anyway because each handshake creates
5612 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
5613 to parameters -- in previous versions (since OpenSSL 0.9.3) the
5614 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
5615 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
5618 *) New s_client option -ign_eof: EOF at stdin is ignored, and
5619 'Q' and 'R' lose their special meanings (quit/renegotiate).
5620 This is part of what -quiet does; unlike -quiet, -ign_eof
5621 does not suppress any output.
5624 *) Add compatibility options to the purpose and trust code. The
5625 purpose X509_PURPOSE_ANY is "any purpose" which automatically
5626 accepts a certificate or CA, this was the previous behaviour,
5627 with all the associated security issues.
5629 X509_TRUST_COMPAT is the old trust behaviour: only and
5630 automatically trust self signed roots in certificate store. A
5631 new trust setting X509_TRUST_DEFAULT is used to specify that
5632 a purpose has no associated trust setting and it should instead
5633 use the value in the default purpose.
5636 *) Fix the PKCS#8 DSA private key code so it decodes keys again
5637 and fix a memory leak.
5640 *) In util/mkerr.pl (which implements 'make errors'), preserve
5641 reason strings from the previous version of the .c file, as
5642 the default to have only downcase letters (and digits) in
5643 automatically generated reasons codes is not always appropriate.
5646 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
5647 using strerror. Previously, ERR_reason_error_string() returned
5648 library names as reason strings for SYSerr; but SYSerr is a special
5649 case where small numbers are errno values, not library numbers.
5652 *) Add '-dsaparam' option to 'openssl dhparam' application. This
5653 converts DSA parameters into DH parameters. (When creating parameters,
5654 DSA_generate_parameters is used.)
5657 *) Include 'length' (recommended exponent length) in C code generated
5658 by 'openssl dhparam -C'.
5661 *) The second argument to set_label in perlasm was already being used
5662 so couldn't be used as a "file scope" flag. Moved to third argument
5666 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
5667 instead of RAND_bytes for encryption IVs and salts.
5670 *) Include RAND_status() into RAND_METHOD instead of implementing
5671 it only for md_rand.c Otherwise replacing the PRNG by calling
5672 RAND_set_rand_method would be impossible.
5675 *) Don't let DSA_generate_key() enter an infinite loop if the random
5676 number generation fails.
5679 *) New 'rand' application for creating pseudo-random output.
5682 *) Added configuration support for Linux/IA64
5683 [Rolf Haberrecker <rolf@suse.de>]
5685 *) Assembler module support for Mingw32.
5688 *) Shared library support for HPUX (in shlib/).
5689 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
5691 *) Shared library support for Solaris gcc.
5692 [Lutz Behnke <behnke@trustcenter.de>]
5694 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
5696 *) PKCS7_encrypt() was adding text MIME headers twice because they
5697 were added manually and by SMIME_crlf_copy().
5700 *) In bntest.c don't call BN_rand with zero bits argument.
5701 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
5703 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
5704 case was implemented. This caused BN_div_recp() to fail occasionally.
5707 *) Add an optional second argument to the set_label() in the perl
5708 assembly language builder. If this argument exists and is set
5709 to 1 it signals that the assembler should use a symbol whose
5710 scope is the entire file, not just the current function. This
5711 is needed with MASM which uses the format label:: for this scope.
5712 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
5714 *) Change the ASN1 types so they are typedefs by default. Before
5715 almost all types were #define'd to ASN1_STRING which was causing
5716 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
5720 *) Change names of new functions to the new get1/get0 naming
5721 convention: After 'get1', the caller owns a reference count
5722 and has to call ..._free; 'get0' returns a pointer to some
5723 data structure without incrementing reference counters.
5724 (Some of the existing 'get' functions increment a reference
5725 counter, some don't.)
5726 Similarly, 'set1' and 'add1' functions increase reference
5727 counters or duplicate objects.
5730 *) Allow for the possibility of temp RSA key generation failure:
5731 the code used to assume it always worked and crashed on failure.
5734 *) Fix potential buffer overrun problem in BIO_printf().
5735 [Ulf Möller, using public domain code by Patrick Powell; problem
5736 pointed out by David Sacerdote <das33@cornell.edu>]
5738 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
5739 RAND_egd() and RAND_status(). In the command line application,
5740 the EGD socket can be specified like a seed file using RANDFILE
5744 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
5745 Some CAs (e.g. Verisign) distribute certificates in this form.
5748 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
5749 list to exclude them. This means that no special compilation option
5750 is needed to use anonymous DH: it just needs to be included in the
5754 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
5755 EVP_MD_type. The old functionality is available in a new macro called
5756 EVP_MD_md(). Change code that uses it and update docs.
5759 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
5760 where the 'void *' argument is replaced by a function pointer argument.
5761 Previously 'void *' was abused to point to functions, which works on
5762 many platforms, but is not correct. As these functions are usually
5763 called by macros defined in OpenSSL header files, most source code
5764 should work without changes.
5767 *) <openssl/opensslconf.h> (which is created by Configure) now contains
5768 sections with information on -D... compiler switches used for
5769 compiling the library so that applications can see them. To enable
5770 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
5771 must be defined. E.g.,
5772 #define OPENSSL_ALGORITHM_DEFINES
5773 #include <openssl/opensslconf.h>
5774 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
5775 [Richard Levitte, Ulf and Bodo Möller]
5777 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
5781 *) Change the 'other' type in certificate aux info to a STACK_OF
5782 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
5783 the required ASN1 format: arbitrary types determined by an OID.
5786 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
5787 argument to 'req'. This is not because the function is newer or
5788 better than others it just uses the work 'NEW' in the certificate
5789 request header lines. Some software needs this.
5792 *) Reorganise password command line arguments: now passwords can be
5793 obtained from various sources. Delete the PEM_cb function and make
5794 it the default behaviour: i.e. if the callback is NULL and the
5795 usrdata argument is not NULL interpret it as a null terminated pass
5796 phrase. If usrdata and the callback are NULL then the pass phrase
5797 is prompted for as usual.
5800 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
5801 the support is automatically enabled. The resulting binaries will
5802 autodetect the card and use it if present.
5803 [Ben Laurie and Compaq Inc.]
5805 *) Work around for Netscape hang bug. This sends certificate request
5806 and server done in one record. Since this is perfectly legal in the
5807 SSL/TLS protocol it isn't a "bug" option and is on by default. See
5808 the bugs/SSLv3 entry for more info.
5811 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
5814 *) Add -rand argument to smime and pkcs12 applications and read/write
5818 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
5821 *) Add command line password options to the remaining applications.
5824 *) Bug fix for BN_div_recp() for numerators with an even number of
5828 *) More tests in bntest.c, and changed test_bn output.
5831 *) ./config recognizes MacOS X now.
5834 *) Bug fix for BN_div() when the first words of num and divsor are
5835 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
5838 *) Add support for various broken PKCS#8 formats, and command line
5839 options to produce them.
5842 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
5843 get temporary BIGNUMs from a BN_CTX.
5846 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
5850 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
5851 include a #define from the old name to the new. The original intent
5852 was that statically linked binaries could for example just call
5853 SSLeay_add_all_ciphers() to just add ciphers to the table and not
5854 link with digests. This never worked becayse SSLeay_add_all_digests()
5855 and SSLeay_add_all_ciphers() were in the same source file so calling
5856 one would link with the other. They are now in separate source files.
5859 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
5862 *) Use a less unusual form of the Miller-Rabin primality test (it used
5863 a binary algorithm for exponentiation integrated into the Miller-Rabin
5864 loop, our standard modexp algorithms are faster).
5867 *) Support for the EBCDIC character set completed.
5868 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
5870 *) Source code cleanups: use const where appropriate, eliminate casts,
5871 use void * instead of char * in lhash.
5874 *) Bugfix: ssl3_send_server_key_exchange was not restartable
5875 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
5876 this the server could overwrite ephemeral keys that the client
5880 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
5881 using 50 iterations of the Rabin-Miller test.
5883 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
5884 iterations of the Rabin-Miller test as required by the appendix
5885 to FIPS PUB 186[-1]) instead of DSA_is_prime.
5886 As BN_is_prime_fasttest includes trial division, DSA parameter
5887 generation becomes much faster.
5889 This implies a change for the callback functions in DSA_is_prime
5890 and DSA_generate_parameters: The callback function is called once
5891 for each positive witness in the Rabin-Miller test, not just
5892 occasionally in the inner loop; and the parameters to the
5893 callback function now provide an iteration count for the outer
5894 loop rather than for the current invocation of the inner loop.
5895 DSA_generate_parameters additionally can call the callback
5896 function with an 'iteration count' of -1, meaning that a
5897 candidate has passed the trial division test (when q is generated
5898 from an application-provided seed, trial division is skipped).
5901 *) New function BN_is_prime_fasttest that optionally does trial
5902 division before starting the Rabin-Miller test and has
5903 an additional BN_CTX * argument (whereas BN_is_prime always
5904 has to allocate at least one BN_CTX).
5905 'callback(1, -1, cb_arg)' is called when a number has passed the
5906 trial division stage.
5909 *) Fix for bug in CRL encoding. The validity dates weren't being handled
5913 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
5916 *) New function BN_pseudo_rand().
5919 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
5920 bignum version of BN_from_montgomery() with the working code from
5921 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
5925 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
5926 made it impossible to use the same SSL_SESSION data structure in
5927 SSL2 clients in multiple threads.
5930 *) The return value of RAND_load_file() no longer counts bytes obtained
5931 by stat(). RAND_load_file(..., -1) is new and uses the complete file
5932 to seed the PRNG (previously an explicit byte count was required).
5933 [Ulf Möller, Bodo Möller]
5935 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
5936 used (char *) instead of (void *) and had casts all over the place.
5939 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
5942 *) Retain source code compatibility for BN_prime_checks macro:
5943 BN_is_prime(..., BN_prime_checks, ...) now uses
5944 BN_prime_checks_for_size to determine the appropriate number of
5945 Rabin-Miller iterations.
5948 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
5949 DH_CHECK_P_NOT_SAFE_PRIME.
5950 (Check if this is true? OpenPGP calls them "strong".)
5953 *) Merge the functionality of "dh" and "gendh" programs into a new program
5954 "dhparam". The old programs are retained for now but will handle DH keys
5955 (instead of parameters) in future.
5958 *) Make the ciphers, s_server and s_client programs check the return values
5959 when a new cipher list is set.
5962 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
5963 ciphers. Before when the 56bit ciphers were enabled the sorting was
5966 The syntax for the cipher sorting has been extended to support sorting by
5967 cipher-strength (using the strength_bits hard coded in the tables).
5968 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
5970 Fix a bug in the cipher-command parser: when supplying a cipher command
5971 string with an "undefined" symbol (neither command nor alphanumeric
5972 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
5973 an error is flagged.
5975 Due to the strength-sorting extension, the code of the
5976 ssl_create_cipher_list() function was completely rearranged. I hope that
5977 the readability was also increased :-)
5978 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5980 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
5981 for the first serial number and places 2 in the serial number file. This
5982 avoids problems when the root CA is created with serial number zero and
5983 the first user certificate has the same issuer name and serial number
5987 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
5988 the new code. Add documentation for this stuff.
5991 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
5992 X509_*() to X509at_*() on the grounds that they don't handle X509
5993 structures and behave in an analagous way to the X509v3 functions:
5994 they shouldn't be called directly but wrapper functions should be used
5997 So we also now have some wrapper functions that call the X509at functions
5998 when passed certificate requests. (TO DO: similar things can be done with
5999 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
6000 things. Some of these need some d2i or i2d and print functionality
6001 because they handle more complex structures.)
6004 *) Add missing #ifndefs that caused missing symbols when building libssl
6005 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
6006 NO_RSA in ssl/s2*.c.
6007 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
6009 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
6010 has a return value which indicates the quality of the random data
6011 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
6012 error queue. New function RAND_pseudo_bytes() generates output that is
6013 guaranteed to be unique but not unpredictable. RAND_add is like
6014 RAND_seed, but takes an extra argument for an entropy estimate
6015 (RAND_seed always assumes full entropy).
6018 *) Do more iterations of Rabin-Miller probable prime test (specifically,
6019 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
6020 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
6021 in crypto/bn/bn_prime.c for the complete table). This guarantees a
6022 false-positive rate of at most 2^-80 for random input.
6025 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
6028 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
6029 in the 0.9.5 release), this returns the chain
6030 from an X509_CTX structure with a dup of the stack and all
6031 the X509 reference counts upped: so the stack will exist
6032 after X509_CTX_cleanup() has been called. Modify pkcs12.c
6035 Also make SSL_SESSION_print() print out the verify return
6039 *) Add manpage for the pkcs12 command. Also change the default
6040 behaviour so MAC iteration counts are used unless the new
6041 -nomaciter option is used. This improves file security and
6042 only older versions of MSIE (4.0 for example) need it.
6045 *) Honor the no-xxx Configure options when creating .DEF files.
6048 *) Add PKCS#10 attributes to field table: challengePassword,
6049 unstructuredName and unstructuredAddress. These are taken from
6050 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
6051 international characters are used.
6053 More changes to X509_ATTRIBUTE code: allow the setting of types
6054 based on strings. Remove the 'loc' parameter when adding
6055 attributes because these will be a SET OF encoding which is sorted
6059 *) Initial changes to the 'req' utility to allow request generation
6060 automation. This will allow an application to just generate a template
6061 file containing all the field values and have req construct the
6064 Initial support for X509_ATTRIBUTE handling. Stacks of these are
6065 used all over the place including certificate requests and PKCS#7
6066 structures. They are currently handled manually where necessary with
6067 some primitive wrappers for PKCS#7. The new functions behave in a
6068 manner analogous to the X509 extension functions: they allow
6069 attributes to be looked up by NID and added.
6071 Later something similar to the X509V3 code would be desirable to
6072 automatically handle the encoding, decoding and printing of the
6073 more complex types. The string types like challengePassword can
6074 be handled by the string table functions.
6076 Also modified the multi byte string table handling. Now there is
6077 a 'global mask' which masks out certain types. The table itself
6078 can use the flag STABLE_NO_MASK to ignore the mask setting: this
6079 is useful when for example there is only one permissible type
6080 (as in countryName) and using the mask might result in no valid
6084 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
6085 SSL_get_peer_finished to allow applications to obtain the latest
6086 Finished messages sent to the peer or expected from the peer,
6087 respectively. (SSL_get_peer_finished is usually the Finished message
6088 actually received from the peer, otherwise the protocol will be aborted.)
6090 As the Finished message are message digests of the complete handshake
6091 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
6092 be used for external authentication procedures when the authentication
6093 provided by SSL/TLS is not desired or is not enough.
6096 *) Enhanced support for Alpha Linux is added. Now ./config checks if
6097 the host supports BWX extension and if Compaq C is present on the
6098 $PATH. Just exploiting of the BWX extension results in 20-30%
6099 performance kick for some algorithms, e.g. DES and RC4 to mention
6100 a couple. Compaq C in turn generates ~20% faster code for MD5 and
6104 *) Add support for MS "fast SGC". This is arguably a violation of the
6105 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
6106 weak crypto and after checking the certificate is SGC a second one
6107 with strong crypto. MS SGC stops the first handshake after receiving
6108 the server certificate message and sends a second client hello. Since
6109 a server will typically do all the time consuming operations before
6110 expecting any further messages from the client (server key exchange
6111 is the most expensive) there is little difference between the two.
6113 To get OpenSSL to support MS SGC we have to permit a second client
6114 hello message after we have sent server done. In addition we have to
6115 reset the MAC if we do get this second client hello.
6118 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
6119 if a DER encoded private key is RSA or DSA traditional format. Changed
6120 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
6121 format DER encoded private key. Newer code should use PKCS#8 format which
6122 has the key type encoded in the ASN1 structure. Added DER private key
6123 support to pkcs8 application.
6126 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
6127 ciphersuites has been selected (as required by the SSL 3/TLS 1
6128 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
6129 is set, we interpret this as a request to violate the specification
6130 (the worst that can happen is a handshake failure, and 'correct'
6131 behaviour would result in a handshake failure anyway).
6134 *) In SSL_CTX_add_session, take into account that there might be multiple
6135 SSL_SESSION structures with the same session ID (e.g. when two threads
6136 concurrently obtain them from an external cache).
6137 The internal cache can handle only one SSL_SESSION with a given ID,
6138 so if there's a conflict, we now throw out the old one to achieve
6142 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
6143 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
6144 some routines that use cipher OIDs: some ciphers do not have OIDs
6145 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
6149 *) Simplify the trust setting structure and code. Now we just have
6150 two sequences of OIDs for trusted and rejected settings. These will
6151 typically have values the same as the extended key usage extension
6152 and any application specific purposes.
6154 The trust checking code now has a default behaviour: it will just
6155 check for an object with the same NID as the passed id. Functions can
6156 be provided to override either the default behaviour or the behaviour
6157 for a given id. SSL client, server and email already have functions
6158 in place for compatibility: they check the NID and also return "trusted"
6159 if the certificate is self signed.
6162 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
6163 traditional format into an EVP_PKEY structure.
6166 *) Add a password callback function PEM_cb() which either prompts for
6167 a password if usr_data is NULL or otherwise assumes it is a null
6168 terminated password. Allow passwords to be passed on command line
6169 environment or config files in a few more utilities.
6172 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
6173 keys. Add some short names for PKCS#8 PBE algorithms and allow them
6174 to be specified on the command line for the pkcs8 and pkcs12 utilities.
6175 Update documentation.
6178 *) Support for ASN1 "NULL" type. This could be handled before by using
6179 ASN1_TYPE but there wasn't any function that would try to read a NULL
6180 and produce an error if it couldn't. For compatibility we also have
6181 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
6182 don't allocate anything because they don't need to.
6185 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
6187 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
6189 *) Rebuild of the memory allocation routines used by OpenSSL code and
6190 possibly others as well. The purpose is to make an interface that
6191 provide hooks so anyone can build a separate set of allocation and
6192 deallocation routines to be used by OpenSSL, for example memory
6193 pool implementations, or something else, which was previously hard
6194 since Malloc(), Realloc() and Free() were defined as macros having
6195 the values malloc, realloc and free, respectively (except for Win32
6196 compilations). The same is provided for memory debugging code.
6197 OpenSSL already comes with functionality to find memory leaks, but
6198 this gives people a chance to debug other memory problems.
6200 With these changes, a new set of functions and macros have appeared:
6202 CRYPTO_set_mem_debug_functions() [F]
6203 CRYPTO_get_mem_debug_functions() [F]
6204 CRYPTO_dbg_set_options() [F]
6205 CRYPTO_dbg_get_options() [F]
6206 CRYPTO_malloc_debug_init() [M]
6208 The memory debug functions are NULL by default, unless the library
6209 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
6210 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
6211 gives the standard debugging functions that come with OpenSSL) or
6212 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
6213 provided by the library user) must be used. When the standard
6214 debugging functions are used, CRYPTO_dbg_set_options can be used to
6215 request additional information:
6216 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
6217 the CRYPTO_MDEBUG_xxx macro when compiling the library.
6219 Also, things like CRYPTO_set_mem_functions will always give the
6220 expected result (the new set of functions is used for allocation
6221 and deallocation) at all times, regardless of platform and compiler
6224 To finish it up, some functions that were never use in any other
6225 way than through macros have a new API and new semantic:
6228 CRYPTO_dbg_realloc()
6231 All macros of value have retained their old syntax.
6232 [Richard Levitte and Bodo Moeller]
6234 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
6235 ordering of SMIMECapabilities wasn't in "strength order" and there
6236 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
6240 *) Some ASN1 types with illegal zero length encoding (INTEGER,
6241 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
6242 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
6244 *) Merge in my S/MIME library for OpenSSL. This provides a simple
6245 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
6246 functionality to handle multipart/signed properly) and a utility
6247 called 'smime' to call all this stuff. This is based on code I
6248 originally wrote for Celo who have kindly allowed it to be
6249 included in OpenSSL.
6252 *) Add variants des_set_key_checked and des_set_key_unchecked of
6253 des_set_key (aka des_key_sched). Global variable des_check_key
6254 decides which of these is called by des_set_key; this way
6255 des_check_key behaves as it always did, but applications and
6256 the library itself, which was buggy for des_check_key == 1,
6257 have a cleaner way to pick the version they need.
6260 *) New function PKCS12_newpass() which changes the password of a
6264 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
6265 dynamic mix. In both cases the ids can be used as an index into the
6266 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
6267 functions so they accept a list of the field values and the
6268 application doesn't need to directly manipulate the X509_TRUST
6272 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
6276 *) Modify the way the V3 extension code looks up extensions. This now
6277 works in a similar way to the object code: we have some "standard"
6278 extensions in a static table which is searched with OBJ_bsearch()
6279 and the application can add dynamic ones if needed. The file
6280 crypto/x509v3/ext_dat.h now has the info: this file needs to be
6281 updated whenever a new extension is added to the core code and kept
6282 in ext_nid order. There is a simple program 'tabtest.c' which checks
6283 this. New extensions are not added too often so this file can readily
6284 be maintained manually.
6286 There are two big advantages in doing things this way. The extensions
6287 can be looked up immediately and no longer need to be "added" using
6288 X509V3_add_standard_extensions(): this function now does nothing.
6289 [Side note: I get *lots* of email saying the extension code doesn't
6290 work because people forget to call this function]
6291 Also no dynamic allocation is done unless new extensions are added:
6292 so if we don't add custom extensions there is no need to call
6293 X509V3_EXT_cleanup().
6296 *) Modify enc utility's salting as follows: make salting the default. Add a
6297 magic header, so unsalted files fail gracefully instead of just decrypting
6298 to garbage. This is because not salting is a big security hole, so people
6299 should be discouraged from doing it.
6302 *) Fixes and enhancements to the 'x509' utility. It allowed a message
6303 digest to be passed on the command line but it only used this
6304 parameter when signing a certificate. Modified so all relevant
6305 operations are affected by the digest parameter including the
6306 -fingerprint and -x509toreq options. Also -x509toreq choked if a
6307 DSA key was used because it didn't fix the digest.
6310 *) Initial certificate chain verify code. Currently tests the untrusted
6311 certificates for consistency with the verify purpose (which is set
6312 when the X509_STORE_CTX structure is set up) and checks the pathlength.
6314 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
6315 this is because it will reject chains with invalid extensions whereas
6316 every previous version of OpenSSL and SSLeay made no checks at all.
6318 Trust code: checks the root CA for the relevant trust settings. Trust
6319 settings have an initial value consistent with the verify purpose: e.g.
6320 if the verify purpose is for SSL client use it expects the CA to be
6321 trusted for SSL client use. However the default value can be changed to
6322 permit custom trust settings: one example of this would be to only trust
6323 certificates from a specific "secure" set of CAs.
6325 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
6326 which should be used for version portability: especially since the
6327 verify structure is likely to change more often now.
6329 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
6330 to set them. If not set then assume SSL clients will verify SSL servers
6333 Two new options to the verify program: -untrusted allows a set of
6334 untrusted certificates to be passed in and -purpose which sets the
6335 intended purpose of the certificate. If a purpose is set then the
6336 new chain verify code is used to check extension consistency.
6339 *) Support for the authority information access extension.
6342 *) Modify RSA and DSA PEM read routines to transparently handle
6343 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
6344 public keys in a format compatible with certificate
6345 SubjectPublicKeyInfo structures. Unfortunately there were already
6346 functions called *_PublicKey_* which used various odd formats so
6347 these are retained for compatibility: however the DSA variants were
6348 never in a public release so they have been deleted. Changed dsa/rsa
6349 utilities to handle the new format: note no releases ever handled public
6350 keys so we should be OK.
6352 The primary motivation for this change is to avoid the same fiasco
6353 that dogs private keys: there are several incompatible private key
6354 formats some of which are standard and some OpenSSL specific and
6355 require various evil hacks to allow partial transparent handling and
6356 even then it doesn't work with DER formats. Given the option anything
6357 other than PKCS#8 should be dumped: but the other formats have to
6358 stay in the name of compatibility.
6360 With public keys and the benefit of hindsight one standard format
6361 is used which works with EVP_PKEY, RSA or DSA structures: though
6362 it clearly returns an error if you try to read the wrong kind of key.
6364 Added a -pubkey option to the 'x509' utility to output the public key.
6365 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
6366 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
6367 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
6368 that do the same as the EVP_PKEY_assign_*() except they up the
6369 reference count of the added key (they don't "swallow" the
6373 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
6374 CRLs would fail if the file contained no certificates or no CRLs:
6375 added a new function to read in both types and return the number
6376 read: this means that if none are read it will be an error. The
6377 DER versions of the certificate and CRL reader would always fail
6378 because it isn't possible to mix certificates and CRLs in DER format
6379 without choking one or the other routine. Changed this to just read
6380 a certificate: this is the best we can do. Also modified the code
6381 in apps/verify.c to take notice of return codes: it was previously
6382 attempting to read in certificates from NULL pointers and ignoring
6383 any errors: this is one reason why the cert and CRL reader seemed
6384 to work. It doesn't check return codes from the default certificate
6385 routines: these may well fail if the certificates aren't installed.
6388 *) Code to support otherName option in GeneralName.
6391 *) First update to verify code. Change the verify utility
6392 so it warns if it is passed a self signed certificate:
6393 for consistency with the normal behaviour. X509_verify
6394 has been modified to it will now verify a self signed
6395 certificate if *exactly* the same certificate appears
6396 in the store: it was previously impossible to trust a
6397 single self signed certificate. This means that:
6398 openssl verify ss.pem
6399 now gives a warning about a self signed certificate but
6400 openssl verify -CAfile ss.pem ss.pem
6404 *) For servers, store verify_result in SSL_SESSION data structure
6405 (and add it to external session representation).
6406 This is needed when client certificate verifications fails,
6407 but an application-provided verification callback (set by
6408 SSL_CTX_set_cert_verify_callback) allows accepting the session
6409 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
6410 but returns 1): When the session is reused, we have to set
6411 ssl->verify_result to the appropriate error code to avoid
6413 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
6415 *) Fix a bug in the new PKCS#7 code: it didn't consider the
6416 case in PKCS7_dataInit() where the signed PKCS7 structure
6417 didn't contain any existing data because it was being created.
6418 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
6420 *) Add a salt to the key derivation routines in enc.c. This
6421 forms the first 8 bytes of the encrypted file. Also add a
6422 -S option to allow a salt to be input on the command line.
6425 *) New function X509_cmp(). Oddly enough there wasn't a function
6426 to compare two certificates. We do this by working out the SHA1
6427 hash and comparing that. X509_cmp() will be needed by the trust
6431 *) SSL_get1_session() is like SSL_get_session(), but increments
6432 the reference count in the SSL_SESSION returned.
6433 [Geoff Thorpe <geoff@eu.c2.net>]
6435 *) Fix for 'req': it was adding a null to request attributes.
6436 Also change the X509_LOOKUP and X509_INFO code to handle
6437 certificate auxiliary information.
6440 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
6444 *) Add the possibility to add extra information to the memory leak
6445 detecting output, to form tracebacks, showing from where each
6446 allocation was originated: CRYPTO_push_info("constant string") adds
6447 the string plus current file name and line number to a per-thread
6448 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
6449 is like calling CYRPTO_pop_info() until the stack is empty.
6450 Also updated memory leak detection code to be multi-thread-safe.
6453 *) Add options -text and -noout to pkcs7 utility and delete the
6454 encryption options which never did anything. Update docs.
6457 *) Add options to some of the utilities to allow the pass phrase
6458 to be included on either the command line (not recommended on
6459 OSes like Unix) or read from the environment. Update the
6460 manpages and fix a few bugs.
6463 *) Add a few manpages for some of the openssl commands.
6466 *) Fix the -revoke option in ca. It was freeing up memory twice,
6467 leaking and not finding already revoked certificates.
6470 *) Extensive changes to support certificate auxiliary information.
6471 This involves the use of X509_CERT_AUX structure and X509_AUX
6472 functions. An X509_AUX function such as PEM_read_X509_AUX()
6473 can still read in a certificate file in the usual way but it
6474 will also read in any additional "auxiliary information". By
6475 doing things this way a fair degree of compatibility can be
6476 retained: existing certificates can have this information added
6477 using the new 'x509' options.
6479 Current auxiliary information includes an "alias" and some trust
6480 settings. The trust settings will ultimately be used in enhanced
6481 certificate chain verification routines: currently a certificate
6482 can only be trusted if it is self signed and then it is trusted
6486 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
6487 The problem was that one of the replacement routines had not been working
6488 since SSLeay releases. For now the offending routine has been replaced
6489 with non-optimised assembler. Even so, this now gives around 95%
6490 performance improvement for 1024 bit RSA signs.
6493 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
6494 handling. Most clients have the effective key size in bits equal to
6495 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
6496 A few however don't do this and instead use the size of the decrypted key
6497 to determine the RC2 key length and the AlgorithmIdentifier to determine
6498 the effective key length. In this case the effective key length can still
6499 be 40 bits but the key length can be 168 bits for example. This is fixed
6500 by manually forcing an RC2 key into the EVP_PKEY structure because the
6501 EVP code can't currently handle unusual RC2 key sizes: it always assumes
6502 the key length and effective key length are equal.
6505 *) Add a bunch of functions that should simplify the creation of
6506 X509_NAME structures. Now you should be able to do:
6507 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
6508 and have it automatically work out the correct field type and fill in
6509 the structures. The more adventurous can try:
6510 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
6511 and it will (hopefully) work out the correct multibyte encoding.
6514 *) Change the 'req' utility to use the new field handling and multibyte
6515 copy routines. Before the DN field creation was handled in an ad hoc
6516 way in req, ca, and x509 which was rather broken and didn't support
6517 BMPStrings or UTF8Strings. Since some software doesn't implement
6518 BMPStrings or UTF8Strings yet, they can be enabled using the config file
6519 using the dirstring_type option. See the new comment in the default
6520 openssl.cnf for more info.
6523 *) Make crypto/rand/md_rand.c more robust:
6524 - Assure unique random numbers after fork().
6525 - Make sure that concurrent threads access the global counter and
6526 md serializably so that we never lose entropy in them
6527 or use exactly the same state in multiple threads.
6528 Access to the large state is not always serializable because
6529 the additional locking could be a performance killer, and
6530 md should be large enough anyway.
6533 *) New file apps/app_rand.c with commonly needed functionality
6534 for handling the random seed file.
6536 Use the random seed file in some applications that previously did not:
6538 dsaparam -genkey (which also ignored its '-rand' option),
6541 x509 (when signing).
6542 Except on systems with /dev/urandom, it is crucial to have a random
6543 seed file at least for key creation, DSA signing, and for DH exchanges;
6544 for RSA signatures we could do without one.
6546 gendh and gendsa (unlike genrsa) used to read only the first byte
6547 of each file listed in the '-rand' option. The function as previously
6548 found in genrsa is now in app_rand.c and is used by all programs
6549 that support '-rand'.
6552 *) In RAND_write_file, use mode 0600 for creating files;
6553 don't just chmod when it may be too late.
6556 *) Report an error from X509_STORE_load_locations
6557 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
6560 *) New function ASN1_mbstring_copy() this copies a string in either
6561 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
6562 into an ASN1_STRING type. A mask of permissible types is passed
6563 and it chooses the "minimal" type to use or an error if not type
6567 *) Add function equivalents to the various macros in asn1.h. The old
6568 macros are retained with an M_ prefix. Code inside the library can
6569 use the M_ macros. External code (including the openssl utility)
6570 should *NOT* in order to be "shared library friendly".
6573 *) Add various functions that can check a certificate's extensions
6574 to see if it usable for various purposes such as SSL client,
6575 server or S/MIME and CAs of these types. This is currently
6576 VERY EXPERIMENTAL but will ultimately be used for certificate chain
6577 verification. Also added a -purpose flag to x509 utility to
6578 print out all the purposes.
6581 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
6585 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
6586 for, obtain and decode and extension and obtain its critical flag.
6587 This allows all the necessary extension code to be handled in a
6588 single function call.
6591 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
6592 platforms. See crypto/rc4/rc4_enc.c for further details.
6595 *) New -noout option to asn1parse. This causes no output to be produced
6596 its main use is when combined with -strparse and -out to extract data
6597 from a file (which may not be in ASN.1 format).
6600 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
6601 when producing the local key id.
6602 [Richard Levitte <levitte@stacken.kth.se>]
6604 *) New option -dhparam in s_server. This allows a DH parameter file to be
6605 stated explicitly. If it is not stated then it tries the first server
6606 certificate file. The previous behaviour hard coded the filename
6610 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
6611 a public key to be input or output. For example:
6612 openssl rsa -in key.pem -pubout -out pubkey.pem
6613 Also added necessary DSA public key functions to handle this.
6616 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
6617 in the message. This was handled by allowing
6618 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
6619 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
6621 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
6622 to the end of the strings whereas this didn't. This would cause problems
6623 if strings read with d2i_ASN1_bytes() were later modified.
6624 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
6626 *) Fix for base64 decode bug. When a base64 bio reads only one line of
6627 data and it contains EOF it will end up returning an error. This is
6628 caused by input 46 bytes long. The cause is due to the way base64
6629 BIOs find the start of base64 encoded data. They do this by trying a
6630 trial decode on each line until they find one that works. When they
6631 do a flag is set and it starts again knowing it can pass all the
6632 data directly through the decoder. Unfortunately it doesn't reset
6633 the context it uses. This means that if EOF is reached an attempt
6634 is made to pass two EOFs through the context and this causes the
6635 resulting error. This can also cause other problems as well. As is
6636 usual with these problems it takes *ages* to find and the fix is
6637 trivial: move one line.
6638 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
6640 *) Ugly workaround to get s_client and s_server working under Windows. The
6641 old code wouldn't work because it needed to select() on sockets and the
6642 tty (for keypresses and to see if data could be written). Win32 only
6643 supports select() on sockets so we select() with a 1s timeout on the
6644 sockets and then see if any characters are waiting to be read, if none
6645 are present then we retry, we also assume we can always write data to
6646 the tty. This isn't nice because the code then blocks until we've
6647 received a complete line of data and it is effectively polling the
6648 keyboard at 1s intervals: however it's quite a bit better than not
6649 working at all :-) A dedicated Windows application might handle this
6650 with an event loop for example.
6653 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
6654 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
6655 will be called when RSA_sign() and RSA_verify() are used. This is useful
6656 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
6657 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
6658 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
6659 This necessitated the support of an extra signature type NID_md5_sha1
6660 for SSL signatures and modifications to the SSL library to use it instead
6661 of calling RSA_public_decrypt() and RSA_private_encrypt().
6664 *) Add new -verify -CAfile and -CApath options to the crl program, these
6665 will lookup a CRL issuers certificate and verify the signature in a
6666 similar way to the verify program. Tidy up the crl program so it
6667 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
6668 less strict. It will now permit CRL extensions even if it is not
6669 a V2 CRL: this will allow it to tolerate some broken CRLs.
6672 *) Initialize all non-automatic variables each time one of the openssl
6673 sub-programs is started (this is necessary as they may be started
6674 multiple times from the "OpenSSL>" prompt).
6675 [Lennart Bang, Bodo Moeller]
6677 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
6678 removing all other RSA functionality (this is what NO_RSA does). This
6679 is so (for example) those in the US can disable those operations covered
6680 by the RSA patent while allowing storage and parsing of RSA keys and RSA
6684 *) Non-copying interface to BIO pairs.
6685 (still largely untested)
6688 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
6689 ASCII string. This was handled independently in various places before.
6692 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
6693 UTF8 strings a character at a time.
6696 *) Use client_version from client hello to select the protocol
6697 (s23_srvr.c) and for RSA client key exchange verification
6698 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
6701 *) Add various utility functions to handle SPKACs, these were previously
6702 handled by poking round in the structure internals. Added new function
6703 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
6704 print, verify and generate SPKACs. Based on an original idea from
6705 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
6708 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
6711 *) Allow the config file extension section to be overwritten on the
6712 command line. Based on an original idea from Massimiliano Pala
6713 <madwolf@comune.modena.it>. The new option is called -extensions
6714 and can be applied to ca, req and x509. Also -reqexts to override
6715 the request extensions in req and -crlexts to override the crl extensions
6719 *) Add new feature to the SPKAC handling in ca. Now you can include
6720 the same field multiple times by preceding it by "XXXX." for example:
6723 this is the same syntax as used in the req config file.
6726 *) Allow certificate extensions to be added to certificate requests. These
6727 are specified in a 'req_extensions' option of the req section of the
6728 config file. They can be printed out with the -text option to req but
6729 are otherwise ignored at present.
6732 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
6733 data read consists of only the final block it would not decrypted because
6734 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
6735 A misplaced 'break' also meant the decrypted final block might not be
6736 copied until the next read.
6739 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
6740 a few extra parameters to the DH structure: these will be useful if
6741 for example we want the value of 'q' or implement X9.42 DH.
6744 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
6745 provides hooks that allow the default DSA functions or functions on a
6746 "per key" basis to be replaced. This allows hardware acceleration and
6747 hardware key storage to be handled without major modification to the
6748 library. Also added low level modexp hooks and CRYPTO_EX structure and
6749 associated functions.
6752 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
6753 as "read only": it can't be written to and the buffer it points to will
6754 not be freed. Reading from a read only BIO is much more efficient than
6755 a normal memory BIO. This was added because there are several times when
6756 an area of memory needs to be read from a BIO. The previous method was
6757 to create a memory BIO and write the data to it, this results in two
6758 copies of the data and an O(n^2) reading algorithm. There is a new
6759 function BIO_new_mem_buf() which creates a read only memory BIO from
6760 an area of memory. Also modified the PKCS#7 routines to use read only
6764 *) Bugfix: ssl23_get_client_hello did not work properly when called in
6765 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
6766 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
6767 but a retry condition occured while trying to read the rest.
6770 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
6771 NID_pkcs7_encrypted by default: this was wrong since this should almost
6772 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
6773 the encrypted data type: this is a more sensible place to put it and it
6774 allows the PKCS#12 code to be tidied up that duplicated this
6778 *) Changed obj_dat.pl script so it takes its input and output files on
6779 the command line. This should avoid shell escape redirection problems
6783 *) Initial support for certificate extension requests, these are included
6784 in things like Xenroll certificate requests. Included functions to allow
6785 extensions to be obtained and added.
6788 *) -crlf option to s_client and s_server for sending newlines as
6789 CRLF (as required by many protocols).
6792 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
6794 *) Install libRSAglue.a when OpenSSL is built with RSAref.
6795 [Ralf S. Engelschall]
6797 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
6798 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
6800 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
6804 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
6805 DH parameters/keys (q is lost during that conversion, but the resulting
6806 DH parameters contain its length).
6808 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
6809 much faster than DH_generate_parameters (which creates parameters
6810 where p = 2*q + 1), and also the smaller q makes DH computations
6811 much more efficient (160-bit exponentiation instead of 1024-bit
6812 exponentiation); so this provides a convenient way to support DHE
6813 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
6814 utter importance to use
6815 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6817 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6818 when such DH parameters are used, because otherwise small subgroup
6819 attacks may become possible!
6822 *) Avoid memory leak in i2d_DHparams.
6825 *) Allow the -k option to be used more than once in the enc program:
6826 this allows the same encrypted message to be read by multiple recipients.
6829 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
6830 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
6831 it will always use the numerical form of the OID, even if it has a short
6835 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
6836 method only got called if p,q,dmp1,dmq1,iqmp components were present,
6837 otherwise bn_mod_exp was called. In the case of hardware keys for example
6838 no private key components need be present and it might store extra data
6839 in the RSA structure, which cannot be accessed from bn_mod_exp.
6840 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
6841 private key operations.
6844 *) Added support for SPARC Linux.
6847 *) pem_password_cb function type incompatibly changed from
6848 typedef int pem_password_cb(char *buf, int size, int rwflag);
6850 ....(char *buf, int size, int rwflag, void *userdata);
6851 so that applications can pass data to their callbacks:
6852 The PEM[_ASN1]_{read,write}... functions and macros now take an
6853 additional void * argument, which is just handed through whenever
6854 the password callback is called.
6855 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
6857 New function SSL_CTX_set_default_passwd_cb_userdata.
6859 Compatibility note: As many C implementations push function arguments
6860 onto the stack in reverse order, the new library version is likely to
6861 interoperate with programs that have been compiled with the old
6862 pem_password_cb definition (PEM_whatever takes some data that
6863 happens to be on the stack as its last argument, and the callback
6864 just ignores this garbage); but there is no guarantee whatsoever that
6867 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
6868 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
6869 problems not only on Windows, but also on some Unix platforms.
6870 To avoid problematic command lines, these definitions are now in an
6871 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
6872 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
6875 *) MIPS III/IV assembler module is reimplemented.
6878 *) More DES library cleanups: remove references to srand/rand and
6879 delete an unused file.
6882 *) Add support for the the free Netwide assembler (NASM) under Win32,
6883 since not many people have MASM (ml) and it can be hard to obtain.
6884 This is currently experimental but it seems to work OK and pass all
6885 the tests. Check out INSTALL.W32 for info.
6888 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
6889 without temporary keys kept an extra copy of the server key,
6890 and connections with temporary keys did not free everything in case
6894 *) New function RSA_check_key and new openssl rsa option -check
6895 for verifying the consistency of RSA keys.
6896 [Ulf Moeller, Bodo Moeller]
6898 *) Various changes to make Win32 compile work:
6899 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
6900 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
6901 comparison" warnings.
6902 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
6905 *) Add a debugging option to PKCS#5 v2 key generation function: when
6906 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
6907 derived keys are printed to stderr.
6910 *) Copy the flags in ASN1_STRING_dup().
6911 [Roman E. Pavlov <pre@mo.msk.ru>]
6913 *) The x509 application mishandled signing requests containing DSA
6914 keys when the signing key was also DSA and the parameters didn't match.
6916 It was supposed to omit the parameters when they matched the signing key:
6917 the verifying software was then supposed to automatically use the CA's
6918 parameters if they were absent from the end user certificate.
6920 Omitting parameters is no longer recommended. The test was also
6921 the wrong way round! This was probably due to unusual behaviour in
6922 EVP_cmp_parameters() which returns 1 if the parameters match.
6923 This meant that parameters were omitted when they *didn't* match and
6924 the certificate was useless. Certificates signed with 'ca' didn't have
6926 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
6928 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
6929 The interface is as follows:
6930 Applications can use
6931 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
6932 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
6933 "off" is now the default.
6934 The library internally uses
6935 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
6936 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
6937 to disable memory-checking temporarily.
6939 Some inconsistent states that previously were possible (and were
6940 even the default) are now avoided.
6942 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
6943 with each memory chunk allocated; this is occasionally more helpful
6944 than just having a counter.
6946 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
6948 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
6952 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
6953 which largely parallels "options", but is for changing API behaviour,
6954 whereas "options" are about protocol behaviour.
6955 Initial "mode" flags are:
6957 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
6958 a single record has been written.
6959 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
6960 retries use the same buffer location.
6961 (But all of the contents must be
6965 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
6968 *) Fix problems with no-hmac etc.
6969 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
6971 *) New functions RSA_get_default_method(), RSA_set_method() and
6972 RSA_get_method(). These allows replacement of RSA_METHODs without having
6973 to mess around with the internals of an RSA structure.
6976 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
6977 Also really enable memory leak checks in openssl.c and in some
6979 [Chad C. Mulligan, Bodo Moeller]
6981 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
6982 up the length of negative integers. This has now been simplified to just
6983 store the length when it is first determined and use it later, rather
6984 than trying to keep track of where data is copied and updating it to
6986 [Steve Henson, reported by Brien Wheeler
6987 <bwheeler@authentica-security.com>]
6989 *) Add a new function PKCS7_signatureVerify. This allows the verification
6990 of a PKCS#7 signature but with the signing certificate passed to the
6991 function itself. This contrasts with PKCS7_dataVerify which assumes the
6992 certificate is present in the PKCS#7 structure. This isn't always the
6993 case: certificates can be omitted from a PKCS#7 structure and be
6994 distributed by "out of band" means (such as a certificate database).
6997 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
6998 function prototypes in pem.h, also change util/mkdef.pl to add the
6999 necessary function names.
7002 *) mk1mf.pl (used by Windows builds) did not properly read the
7003 options set by Configure in the top level Makefile, and Configure
7004 was not even able to write more than one option correctly.
7005 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
7008 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
7009 file to be loaded from a BIO or FILE pointer. The BIO version will
7010 for example allow memory BIOs to contain config info.
7013 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
7014 Whoever hopes to achieve shared-library compatibility across versions
7015 must use this, not the compile-time macro.
7016 (Exercise 0.9.4: Which is the minimum library version required by
7018 Note: All this applies only to multi-threaded programs, others don't
7022 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
7023 through a BIO pair triggered the default case, i.e.
7024 SSLerr(...,SSL_R_UNKNOWN_STATE).
7027 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
7028 can use the SSL library even if none of the specific BIOs is
7032 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
7033 for the encoded length.
7034 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
7036 *) Add initial documentation of the X509V3 functions.
7039 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
7040 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
7041 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
7042 secure PKCS#8 private key format with a high iteration count.
7045 *) Fix determination of Perl interpreter: A perl or perl5
7046 _directory_ in $PATH was also accepted as the interpreter.
7047 [Ralf S. Engelschall]
7049 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
7050 wrong with it but it was very old and did things like calling
7051 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
7055 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
7056 to use the new extension code.
7059 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
7060 with macros. This should make it easier to change their form, add extra
7061 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
7065 *) Add to configuration table a new entry that can specify an alternative
7066 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
7067 according to Mark Crispin <MRC@Panda.COM>.
7071 *) DES CBC did not update the IV. Weird.
7074 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
7075 Changing the behaviour of the former might break existing programs --
7076 where IV updating is needed, des_ncbc_encrypt can be used.
7079 *) When bntest is run from "make test" it drives bc to check its
7080 calculations, as well as internally checking them. If an internal check
7081 fails, it needs to cause bc to give a non-zero result or make test carries
7082 on without noticing the failure. Fixed.
7085 *) DES library cleanups.
7088 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
7089 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
7090 ciphers. NOTE: although the key derivation function has been verified
7091 against some published test vectors it has not been extensively tested
7092 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
7096 *) Instead of "mkdir -p", which is not fully portable, use new
7097 Perl script "util/mkdir-p.pl".
7100 *) Rewrite the way password based encryption (PBE) is handled. It used to
7101 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
7102 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
7103 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
7104 the 'parameter' field of the AlgorithmIdentifier is passed to the
7105 underlying key generation function so it must do its own ASN1 parsing.
7106 This has also changed the EVP_PBE_CipherInit() function which now has a
7107 'parameter' argument instead of literal salt and iteration count values
7108 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
7111 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
7112 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
7113 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
7114 KEY" because this clashed with PKCS#8 unencrypted string. Since this
7115 value was just used as a "magic string" and not used directly its
7116 value doesn't matter.
7119 *) Introduce some semblance of const correctness to BN. Shame C doesn't
7123 *) "linux-sparc64" configuration (ultrapenguin).
7124 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
7125 "linux-sparc" configuration.
7126 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
7128 *) config now generates no-xxx options for missing ciphers.
7131 *) Support the EBCDIC character set (work in progress).
7132 File ebcdic.c not yet included because it has a different license.
7133 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7135 *) Support BS2000/OSD-POSIX.
7136 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7138 *) Make callbacks for key generation use void * instead of char *.
7141 *) Make S/MIME samples compile (not yet tested).
7144 *) Additional typesafe stacks.
7147 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
7151 Changes between 0.9.3 and 0.9.3a [29 May 1999]
7153 *) New configuration variant "sco5-gcc".
7155 *) Updated some demos.
7156 [Sean O Riordain, Wade Scholine]
7158 *) Add missing BIO_free at exit of pkcs12 application.
7161 *) Fix memory leak in conf.c.
7164 *) Updates for Win32 to assembler version of MD5.
7167 *) Set #! path to perl in apps/der_chop to where we found it
7168 instead of using a fixed path.
7171 *) SHA library changes for irix64-mips4-cc.
7174 *) Improvements for VMS support.
7178 Changes between 0.9.2b and 0.9.3 [24 May 1999]
7180 *) Bignum library bug fix. IRIX 6 passes "make test" now!
7181 This also avoids the problems with SC4.2 and unpatched SC5.
7182 [Andy Polyakov <appro@fy.chalmers.se>]
7184 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
7185 These are required because of the typesafe stack would otherwise break
7186 existing code. If old code used a structure member which used to be STACK
7187 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
7188 sk_num or sk_value it would produce an error because the num, data members
7189 are not present in STACK_OF. Now it just produces a warning. sk_set
7190 replaces the old method of assigning a value to sk_value
7191 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
7192 that does this will no longer work (and should use sk_set instead) but
7193 this could be regarded as a "questionable" behaviour anyway.
7196 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
7197 correctly handle encrypted S/MIME data.
7200 *) Change type of various DES function arguments from des_cblock
7201 (which means, in function argument declarations, pointer to char)
7202 to des_cblock * (meaning pointer to array with 8 char elements),
7203 which allows the compiler to do more typechecking; it was like
7204 that back in SSLeay, but with lots of ugly casts.
7206 Introduce new type const_des_cblock.
7209 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
7210 problems: find RecipientInfo structure that matches recipient certificate
7211 and initialise the ASN1 structures properly based on passed cipher.
7214 *) Belatedly make the BN tests actually check the results.
7217 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
7218 to and from BNs: it was completely broken. New compilation option
7219 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
7220 key elements as negative integers.
7223 *) Reorganize and speed up MD5.
7224 [Andy Polyakov <appro@fy.chalmers.se>]
7227 [Richard Levitte <richard@levitte.org>]
7229 *) New option -out to asn1parse to allow the parsed structure to be
7230 output to a file. This is most useful when combined with the -strparse
7231 option to examine the output of things like OCTET STRINGS.
7234 *) Make SSL library a little more fool-proof by not requiring any longer
7235 that SSL_set_{accept,connect}_state be called before
7236 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
7237 in many applications because usually everything *appeared* to work as
7238 intended anyway -- now it really works as intended).
7241 *) Move openssl.cnf out of lib/.
7244 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
7245 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
7246 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
7247 [Ralf S. Engelschall]
7249 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
7250 handle PKCS#7 enveloped data properly.
7251 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
7253 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
7254 copying pointers. The cert_st handling is changed by this in
7255 various ways (and thus what used to be known as ctx->default_cert
7256 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
7257 any longer when s->cert does not give us what we need).
7258 ssl_cert_instantiate becomes obsolete by this change.
7259 As soon as we've got the new code right (possibly it already is?),
7260 we have solved a couple of bugs of the earlier code where s->cert
7261 was used as if it could not have been shared with other SSL structures.
7263 Note that using the SSL API in certain dirty ways now will result
7264 in different behaviour than observed with earlier library versions:
7265 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
7266 does not influence s as it used to.
7268 In order to clean up things more thoroughly, inside SSL_SESSION
7269 we don't use CERT any longer, but a new structure SESS_CERT
7270 that holds per-session data (if available); currently, this is
7271 the peer's certificate chain and, for clients, the server's certificate
7272 and temporary key. CERT holds only those values that can have
7273 meaningful defaults in an SSL_CTX.
7276 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
7277 from the internal representation. Various PKCS#7 fixes: remove some
7278 evil casts and set the enc_dig_alg field properly based on the signing
7282 *) Allow PKCS#12 password to be set from the command line or the
7283 environment. Let 'ca' get its config file name from the environment
7284 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
7288 *) Allow certificate policies extension to use an IA5STRING for the
7289 organization field. This is contrary to the PKIX definition but
7290 VeriSign uses it and IE5 only recognises this form. Document 'x509'
7294 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
7295 without disallowing inline assembler and the like for non-pedantic builds.
7298 *) Support Borland C++ builder.
7299 [Janez Jere <jj@void.si>, modified by Ulf Möller]
7304 *) SHA-1 cleanups and performance enhancements.
7305 [Andy Polyakov <appro@fy.chalmers.se>]
7307 *) Sparc v8plus assembler for the bignum library.
7308 [Andy Polyakov <appro@fy.chalmers.se>]
7310 *) Accept any -xxx and +xxx compiler options in Configure.
7313 *) Update HPUX configuration.
7316 *) Add missing sk_<type>_unshift() function to safestack.h
7317 [Ralf S. Engelschall]
7319 *) New function SSL_CTX_use_certificate_chain_file that sets the
7320 "extra_cert"s in addition to the certificate. (This makes sense
7321 only for "PEM" format files, as chains as a whole are not
7325 *) Support verify_depth from the SSL API.
7326 x509_vfy.c had what can be considered an off-by-one-error:
7327 Its depth (which was not part of the external interface)
7328 was actually counting the number of certificates in a chain;
7329 now it really counts the depth.
7332 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
7333 instead of X509err, which often resulted in confusing error
7334 messages since the error codes are not globally unique
7335 (e.g. an alleged error in ssl3_accept when a certificate
7336 didn't match the private key).
7338 *) New function SSL_CTX_set_session_id_context that allows to set a default
7339 value (so that you don't need SSL_set_session_id_context for each
7340 connection using the SSL_CTX).
7343 *) OAEP decoding bug fix.
7346 *) Support INSTALL_PREFIX for package builders, as proposed by
7350 *) New Configure options "threads" and "no-threads". For systems
7351 where the proper compiler options are known (currently Solaris
7352 and Linux), "threads" is the default.
7355 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
7358 *) Install various scripts to $(OPENSSLDIR)/misc, not to
7359 $(INSTALLTOP)/bin -- they shouldn't clutter directories
7360 such as /usr/local/bin.
7363 *) "make linux-shared" to build shared libraries.
7364 [Niels Poppe <niels@netbox.org>]
7366 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
7369 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
7370 extension adding in x509 utility.
7373 *) Remove NOPROTO sections and error code comments.
7376 *) Partial rewrite of the DEF file generator to now parse the ANSI
7380 *) New Configure options --prefix=DIR and --openssldir=DIR.
7383 *) Complete rewrite of the error code script(s). It is all now handled
7384 by one script at the top level which handles error code gathering,
7385 header rewriting and C source file generation. It should be much better
7386 than the old method: it now uses a modified version of Ulf's parser to
7387 read the ANSI prototypes in all header files (thus the old K&R definitions
7388 aren't needed for error creation any more) and do a better job of
7389 translating function codes into names. The old 'ASN1 error code imbedded
7390 in a comment' is no longer necessary and it doesn't use .err files which
7391 have now been deleted. Also the error code call doesn't have to appear all
7392 on one line (which resulted in some large lines...).
7395 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
7398 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
7399 0 (which usually indicates a closed connection), but continue reading.
7402 *) Fix some race conditions.
7405 *) Add support for CRL distribution points extension. Add Certificate
7406 Policies and CRL distribution points documentation.
7409 *) Move the autogenerated header file parts to crypto/opensslconf.h.
7412 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
7413 8 of keying material. Merlin has also confirmed interop with this fix
7414 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
7415 [Merlin Hughes <merlin@baltimore.ie>]
7417 *) Fix lots of warnings.
7418 [Richard Levitte <levitte@stacken.kth.se>]
7420 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
7421 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
7422 [Richard Levitte <levitte@stacken.kth.se>]
7424 *) Fix problems with sizeof(long) == 8.
7425 [Andy Polyakov <appro@fy.chalmers.se>]
7427 *) Change functions to ANSI C.
7430 *) Fix typos in error codes.
7431 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
7433 *) Remove defunct assembler files from Configure.
7436 *) SPARC v8 assembler BIGNUM implementation.
7437 [Andy Polyakov <appro@fy.chalmers.se>]
7439 *) Support for Certificate Policies extension: both print and set.
7440 Various additions to support the r2i method this uses.
7443 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
7444 return a const string when you are expecting an allocated buffer.
7447 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
7448 types DirectoryString and DisplayText.
7451 *) Add code to allow r2i extensions to access the configuration database,
7452 add an LHASH database driver and add several ctx helper functions.
7455 *) Fix an evil bug in bn_expand2() which caused various BN functions to
7456 fail when they extended the size of a BIGNUM.
7459 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
7460 support typesafe stack.
7463 *) Fix typo in SSL_[gs]et_options().
7464 [Nils Frostberg <nils@medcom.se>]
7466 *) Delete various functions and files that belonged to the (now obsolete)
7467 old X509V3 handling code.
7470 *) New Configure option "rsaref".
7473 *) Don't auto-generate pem.h.
7476 *) Introduce type-safe ASN.1 SETs.
7479 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
7480 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
7482 *) Introduce type-safe STACKs. This will almost certainly break lots of code
7483 that links with OpenSSL (well at least cause lots of warnings), but fear
7484 not: the conversion is trivial, and it eliminates loads of evil casts. A
7485 few STACKed things have been converted already. Feel free to convert more.
7486 In the fullness of time, I'll do away with the STACK type altogether.
7489 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
7490 specified in <certfile> by updating the entry in the index.txt file.
7491 This way one no longer has to edit the index.txt file manually for
7492 revoking a certificate. The -revoke option does the gory details now.
7493 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
7495 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
7496 `-text' option at all and this way the `-noout -text' combination was
7497 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
7498 [Ralf S. Engelschall]
7500 *) Make sure a corresponding plain text error message exists for the
7501 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
7502 verify callback function determined that a certificate was revoked.
7503 [Ralf S. Engelschall]
7505 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
7506 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
7507 all available cipers including rc5, which was forgotten until now.
7508 In order to let the testing shell script know which algorithms
7509 are available, a new (up to now undocumented) command
7510 "openssl list-cipher-commands" is used.
7513 *) Bugfix: s_client occasionally would sleep in select() when
7514 it should have checked SSL_pending() first.
7517 *) New functions DSA_do_sign and DSA_do_verify to provide access to
7518 the raw DSA values prior to ASN.1 encoding.
7521 *) Tweaks to Configure
7522 [Niels Poppe <niels@netbox.org>]
7524 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
7528 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
7531 *) New config option to avoid instructions that are illegal on the 80386.
7532 The default code is faster, but requires at least a 486.
7535 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
7536 SSL2_SERVER_VERSION (not used at all) macros, which are now the
7537 same as SSL2_VERSION anyway.
7540 *) New "-showcerts" option for s_client.
7543 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
7544 application. Various cleanups and fixes.
7547 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
7548 modify error routines to work internally. Add error codes and PBE init
7549 to library startup routines.
7552 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
7553 packing functions to asn1 and evp. Changed function names and error
7554 codes along the way.
7557 *) PKCS12 integration: and so it begins... First of several patches to
7558 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
7559 objects to objects.h
7562 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
7563 and display support for Thawte strong extranet extension.
7566 *) Add LinuxPPC support.
7567 [Jeff Dubrule <igor@pobox.org>]
7569 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
7570 bn_div_words in alpha.s.
7571 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
7573 *) Make sure the RSA OAEP test is skipped under -DRSAref because
7574 OAEP isn't supported when OpenSSL is built with RSAref.
7575 [Ulf Moeller <ulf@fitug.de>]
7577 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
7578 so they no longer are missing under -DNOPROTO.
7579 [Soren S. Jorvang <soren@t.dk>]
7582 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
7584 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
7585 doesn't work when the session is reused. Coming soon!
7588 *) Fix a security hole, that allows sessions to be reused in the wrong
7589 context thus bypassing client cert protection! All software that uses
7590 client certs and session caches in multiple contexts NEEDS PATCHING to
7591 allow session reuse! A fuller solution is in the works.
7592 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
7594 *) Some more source tree cleanups (removed obsolete files
7595 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
7596 permission on "config" script to be executable) and a fix for the INSTALL
7598 [Ulf Moeller <ulf@fitug.de>]
7600 *) Remove some legacy and erroneous uses of malloc, free instead of
7602 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
7604 *) Make rsa_oaep_test return non-zero on error.
7605 [Ulf Moeller <ulf@fitug.de>]
7607 *) Add support for native Solaris shared libraries. Configure
7608 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
7609 if someone would make that last step automatic.
7610 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
7612 *) ctx_size was not built with the right compiler during "make links". Fixed.
7615 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
7616 except NULL ciphers". This means the default cipher list will no longer
7617 enable NULL ciphers. They need to be specifically enabled e.g. with
7618 the string "DEFAULT:eNULL".
7621 *) Fix to RSA private encryption routines: if p < q then it would
7622 occasionally produce an invalid result. This will only happen with
7623 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
7626 *) Be less restrictive and allow also `perl util/perlpath.pl
7627 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
7628 because this way one can also use an interpreter named `perl5' (which is
7629 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
7630 installed as `perl').
7631 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7633 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
7634 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7636 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
7637 advapi32.lib to Win32 build and change the pem test comparision
7638 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
7639 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
7640 and crypto/des/ede_cbcm_enc.c.
7643 *) DES quad checksum was broken on big-endian architectures. Fixed.
7646 *) Comment out two functions in bio.h that aren't implemented. Fix up the
7647 Win32 test batch file so it (might) work again. The Win32 test batch file
7648 is horrible: I feel ill....
7651 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
7652 in e_os.h. Audit of header files to check ANSI and non ANSI
7653 sections: 10 functions were absent from non ANSI section and not exported
7654 from Windows DLLs. Fixed up libeay.num for new functions.
7657 *) Make `openssl version' output lines consistent.
7658 [Ralf S. Engelschall]
7660 *) Fix Win32 symbol export lists for BIO functions: Added
7661 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
7662 to ms/libeay{16,32}.def.
7663 [Ralf S. Engelschall]
7665 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
7666 fine under Unix and passes some trivial tests I've now added. But the
7667 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
7668 added to make sure no one expects that this stuff really works in the
7669 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
7670 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
7672 [Ralf S. Engelschall]
7674 *) Fix the generation of two part addresses in perl.
7675 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
7677 *) Add config entry for Linux on MIPS.
7678 [John Tobey <jtobey@channel1.com>]
7680 *) Make links whenever Configure is run, unless we are on Windoze.
7683 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
7684 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
7688 *) Add a useful kludge to allow package maintainers to specify compiler and
7689 other platforms details on the command line without having to patch the
7690 Configure script everytime: One now can use ``perl Configure
7691 <id>:<details>'', i.e. platform ids are allowed to have details appended
7692 to them (seperated by colons). This is treated as there would be a static
7693 pre-configured entry in Configure's %table under key <id> with value
7694 <details> and ``perl Configure <id>'' is called. So, when you want to
7695 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
7696 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
7697 now, which overrides the FreeBSD-elf entry on-the-fly.
7698 [Ralf S. Engelschall]
7700 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
7703 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
7704 on the `perl Configure ...' command line. This way one can compile
7705 OpenSSL libraries with Position Independent Code (PIC) which is needed
7706 for linking it into DSOs.
7707 [Ralf S. Engelschall]
7709 *) Remarkably, export ciphers were totally broken and no-one had noticed!
7713 *) Cleaned up the LICENSE document: The official contact for any license
7714 questions now is the OpenSSL core team under openssl-core@openssl.org.
7715 And add a paragraph about the dual-license situation to make sure people
7716 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
7717 to the OpenSSL toolkit.
7718 [Ralf S. Engelschall]
7720 *) General source tree makefile cleanups: Made `making xxx in yyy...'
7721 display consistent in the source tree and replaced `/bin/rm' by `rm'.
7722 Additonally cleaned up the `make links' target: Remove unnecessary
7723 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
7724 to speed processing and no longer clutter the display with confusing
7725 stuff. Instead only the actually done links are displayed.
7726 [Ralf S. Engelschall]
7728 *) Permit null encryption ciphersuites, used for authentication only. It used
7729 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
7730 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
7734 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
7735 signed attributes when verifying signatures (this would break them),
7736 the detached data encoding was wrong and public keys obtained using
7737 X509_get_pubkey() weren't freed.
7740 *) Add text documentation for the BUFFER functions. Also added a work around
7741 to a Win95 console bug. This was triggered by the password read stuff: the
7742 last character typed gets carried over to the next fread(). If you were
7743 generating a new cert request using 'req' for example then the last
7744 character of the passphrase would be CR which would then enter the first
7748 *) Added the new `Includes OpenSSL Cryptography Software' button as
7749 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
7750 button and can be used by applications based on OpenSSL to show the
7751 relationship to the OpenSSL project.
7752 [Ralf S. Engelschall]
7754 *) Remove confusing variables in function signatures in files
7755 ssl/ssl_lib.c and ssl/ssl.h.
7756 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7758 *) Don't install bss_file.c under PREFIX/include/
7759 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7761 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
7762 functions that return function pointers and has support for NT specific
7763 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
7764 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
7765 unsigned to signed types: this was killing the Win32 compile.
7768 *) Add new certificate file to stack functions,
7769 SSL_add_dir_cert_subjects_to_stack() and
7770 SSL_add_file_cert_subjects_to_stack(). These largely supplant
7771 SSL_load_client_CA_file(), and can be used to add multiple certs easily
7772 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
7773 This means that Apache-SSL and similar packages don't have to mess around
7774 to add as many CAs as they want to the preferred list.
7777 *) Experiment with doxygen documentation. Currently only partially applied to
7779 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
7780 openssl.doxy as the configuration file.
7783 *) Get rid of remaining C++-style comments which strict C compilers hate.
7784 [Ralf S. Engelschall, pointed out by Carlos Amengual]
7786 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
7787 compiled in by default: it has problems with large keys.
7790 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
7791 DH private keys and/or callback functions which directly correspond to
7792 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
7793 is needed for applications which have to configure certificates on a
7794 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
7796 For the RSA certificate situation is makes no difference, but
7797 for the DSA certificate situation this fixes the "no shared cipher"
7798 problem where the OpenSSL cipher selection procedure failed because the
7799 temporary keys were not overtaken from the context and the API provided
7800 no way to reconfigure them.
7801 The new functions now let applications reconfigure the stuff and they
7802 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
7803 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
7804 non-public-API function ssl_cert_instantiate() is used as a helper
7805 function and also to reduce code redundancy inside ssl_rsa.c.
7806 [Ralf S. Engelschall]
7808 *) Move s_server -dcert and -dkey options out of the undocumented feature
7809 area because they are useful for the DSA situation and should be
7810 recognized by the users.
7811 [Ralf S. Engelschall]
7813 *) Fix the cipher decision scheme for export ciphers: the export bits are
7814 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
7815 SSL_EXP_MASK. So, the original variable has to be used instead of the
7816 already masked variable.
7817 [Richard Levitte <levitte@stacken.kth.se>]
7819 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
7820 [Richard Levitte <levitte@stacken.kth.se>]
7822 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
7823 from `int' to `unsigned int' because it's a length and initialized by
7824 EVP_DigestFinal() which expects an `unsigned int *'.
7825 [Richard Levitte <levitte@stacken.kth.se>]
7827 *) Don't hard-code path to Perl interpreter on shebang line of Configure
7828 script. Instead use the usual Shell->Perl transition trick.
7829 [Ralf S. Engelschall]
7831 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
7832 (in addition to RSA certificates) to match the behaviour of `openssl dsa
7833 -noout -modulus' as it's already the case for `openssl rsa -noout
7834 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
7835 currently the public key is printed (a decision which was already done by
7836 `openssl dsa -modulus' in the past) which serves a similar purpose.
7837 Additionally the NO_RSA no longer completely removes the whole -modulus
7838 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
7840 [Ralf S. Engelschall]
7842 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
7843 BIO. See the source (crypto/evp/bio_ok.c) for more info.
7844 [Arne Ansper <arne@ats.cyber.ee>]
7846 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
7847 to be added. Now both 'req' and 'ca' can use new objects defined in the
7851 *) Add cool BIO that does syslog (or event log on NT).
7852 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
7854 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
7855 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
7856 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
7857 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
7860 *) Add preliminary config info for new extension code.
7863 *) Make RSA_NO_PADDING really use no padding.
7864 [Ulf Moeller <ulf@fitug.de>]
7866 *) Generate errors when private/public key check is done.
7869 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
7870 for some CRL extensions and new objects added.
7873 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
7874 key usage extension and fuller support for authority key id.
7877 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
7878 padding method for RSA, which is recommended for new applications in PKCS
7879 #1 v2.0 (RFC 2437, October 1998).
7880 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
7881 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
7882 against Bleichbacher's attack on RSA.
7883 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
7886 *) Updates to the new SSL compression code
7887 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7889 *) Fix so that the version number in the master secret, when passed
7890 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
7891 (because the server will not accept higher), that the version number
7892 is 0x03,0x01, not 0x03,0x00
7893 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7895 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
7896 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
7897 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
7900 *) Support for RAW extensions where an arbitrary extension can be
7901 created by including its DER encoding. See apps/openssl.cnf for
7905 *) Make sure latest Perl versions don't interpret some generated C array
7906 code as Perl array code in the crypto/err/err_genc.pl script.
7907 [Lars Weber <3weber@informatik.uni-hamburg.de>]
7909 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
7910 not many people have the assembler. Various Win32 compilation fixes and
7911 update to the INSTALL.W32 file with (hopefully) more accurate Win32
7915 *) Modify configure script 'Configure' to automatically create crypto/date.h
7916 file under Win32 and also build pem.h from pem.org. New script
7917 util/mkfiles.pl to create the MINFO file on environments that can't do a
7918 'make files': perl util/mkfiles.pl >MINFO should work.
7921 *) Major rework of DES function declarations, in the pursuit of correctness
7922 and purity. As a result, many evil casts evaporated, and some weirdness,
7923 too. You may find this causes warnings in your code. Zapping your evil
7924 casts will probably fix them. Mostly.
7927 *) Fix for a typo in asn1.h. Bug fix to object creation script
7928 obj_dat.pl. It considered a zero in an object definition to mean
7929 "end of object": none of the objects in objects.h have any zeros
7930 so it wasn't spotted.
7931 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
7933 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
7934 Masking (CBCM). In the absence of test vectors, the best I have been able
7935 to do is check that the decrypt undoes the encrypt, so far. Send me test
7936 vectors if you have them.
7939 *) Correct calculation of key length for export ciphers (too much space was
7940 allocated for null ciphers). This has not been tested!
7943 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
7944 message is now correct (it understands "crypto" and "ssl" on its
7945 command line). There is also now an "update" option. This will update
7946 the util/ssleay.num and util/libeay.num files with any new functions.
7948 perl util/mkdef.pl crypto ssl update
7949 it will update them.
7952 *) Overhauled the Perl interface (perl/*):
7953 - ported BN stuff to OpenSSL's different BN library
7954 - made the perl/ source tree CVS-aware
7955 - renamed the package from SSLeay to OpenSSL (the files still contain
7956 their history because I've copied them in the repository)
7957 - removed obsolete files (the test scripts will be replaced
7958 by better Test::Harness variants in the future)
7959 [Ralf S. Engelschall]
7961 *) First cut for a very conservative source tree cleanup:
7962 1. merge various obsolete readme texts into doc/ssleay.txt
7963 where we collect the old documents and readme texts.
7964 2. remove the first part of files where I'm already sure that we no
7965 longer need them because of three reasons: either they are just temporary
7966 files which were left by Eric or they are preserved original files where
7967 I've verified that the diff is also available in the CVS via "cvs diff
7968 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
7969 the crypto/md/ stuff).
7970 [Ralf S. Engelschall]
7972 *) More extension code. Incomplete support for subject and issuer alt
7973 name, issuer and authority key id. Change the i2v function parameters
7974 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
7975 what that's for :-) Fix to ASN1 macro which messed up
7976 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
7979 *) Preliminary support for ENUMERATED type. This is largely copied from the
7983 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
7984 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7986 *) Make sure `make rehash' target really finds the `openssl' program.
7987 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7989 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
7990 like to hear about it if this slows down other processors.
7993 *) Add CygWin32 platform information to Configure script.
7994 [Alan Batie <batie@aahz.jf.intel.com>]
7996 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
7997 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
7999 *) New program nseq to manipulate netscape certificate sequences
8002 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
8006 *) Fixes to BN code. Previously the default was to define BN_RECURSION
8007 but the BN code had some problems that would cause failures when
8008 doing certificate verification and some other functions.
8009 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8011 *) Add ASN1 and PEM code to support netscape certificate sequences.
8014 *) Add ASN1 and PEM code to support netscape certificate sequences.
8017 *) Add several PKIX and private extended key usage OIDs.
8020 *) Modify the 'ca' program to handle the new extension code. Modify
8021 openssl.cnf for new extension format, add comments.
8024 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
8025 and add a sample to openssl.cnf so req -x509 now adds appropriate
8029 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
8030 error code, add initial support to X509_print() and x509 application.
8033 *) Takes a deep breath and start addding X509 V3 extension support code. Add
8034 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
8035 stuff is currently isolated and isn't even compiled yet.
8038 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
8039 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
8040 Removed the versions check from X509 routines when loading extensions:
8041 this allows certain broken certificates that don't set the version
8042 properly to be processed.
8045 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
8046 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
8047 can still be regenerated with "make depend".
8050 *) Spelling mistake in C version of CAST-128.
8051 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
8053 *) Changes to the error generation code. The perl script err-code.pl
8054 now reads in the old error codes and retains the old numbers, only
8055 adding new ones if necessary. It also only changes the .err files if new
8056 codes are added. The makefiles have been modified to only insert errors
8057 when needed (to avoid needlessly modifying header files). This is done
8058 by only inserting errors if the .err file is newer than the auto generated
8059 C file. To rebuild all the error codes from scratch (the old behaviour)
8060 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
8061 or delete all the .err files.
8064 *) CAST-128 was incorrectly implemented for short keys. The C version has
8065 been fixed, but is untested. The assembler versions are also fixed, but
8066 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
8067 to regenerate it if needed.
8068 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
8069 Hagino <itojun@kame.net>]
8071 *) File was opened incorrectly in randfile.c.
8072 [Ulf Möller <ulf@fitug.de>]
8074 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
8075 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
8076 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
8077 al: it's just almost always a UTCTime. Note this patch adds new error
8078 codes so do a "make errors" if there are problems.
8081 *) Correct Linux 1 recognition in config.
8082 [Ulf Möller <ulf@fitug.de>]
8084 *) Remove pointless MD5 hash when using DSA keys in ca.
8085 [Anonymous <nobody@replay.com>]
8087 *) Generate an error if given an empty string as a cert directory. Also
8088 generate an error if handed NULL (previously returned 0 to indicate an
8089 error, but didn't set one).
8090 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
8092 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
8095 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
8096 parameters. This was causing a warning which killed off the Win32 compile.
8099 *) Remove C++ style comments from crypto/bn/bn_local.h.
8100 [Neil Costigan <neil.costigan@celocom.com>]
8102 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
8103 based on a text string, looking up short and long names and finally
8104 "dot" format. The "dot" format stuff didn't work. Added new function
8105 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
8106 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
8107 OID is not part of the table.
8110 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
8111 X509_LOOKUP_by_alias().
8114 *) Sort openssl functions by name.
8117 *) Get the gendsa program working (hopefully) and add it to app list. Remove
8118 encryption from sample DSA keys (in case anyone is interested the password
8122 *) Make _all_ *_free functions accept a NULL pointer.
8123 [Frans Heymans <fheymans@isaserver.be>]
8125 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
8127 [Anonymous <nobody@replay.com>]
8129 *) s_server should send the CAfile as acceptable CAs, not its own cert.
8130 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8132 *) Don't blow it for numeric -newkey arguments to apps/req.
8133 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8135 *) Temp key "for export" tests were wrong in s3_srvr.c.
8136 [Anonymous <nobody@replay.com>]
8138 *) Add prototype for temp key callback functions
8139 SSL_CTX_set_tmp_{rsa,dh}_callback().
8142 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
8143 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
8146 *) X509_name_add_entry() freed the wrong thing after an error.
8147 [Arne Ansper <arne@ats.cyber.ee>]
8149 *) rsa_eay.c would attempt to free a NULL context.
8150 [Arne Ansper <arne@ats.cyber.ee>]
8152 *) BIO_s_socket() had a broken should_retry() on Windoze.
8153 [Arne Ansper <arne@ats.cyber.ee>]
8155 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
8156 [Arne Ansper <arne@ats.cyber.ee>]
8158 *) Make sure the already existing X509_STORE->depth variable is initialized
8159 in X509_STORE_new(), but document the fact that this variable is still
8160 unused in the certificate verification process.
8161 [Ralf S. Engelschall]
8163 *) Fix the various library and apps files to free up pkeys obtained from
8164 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
8167 *) Fix reference counting in X509_PUBKEY_get(). This makes
8168 demos/maurice/example2.c work, amongst others, probably.
8169 [Steve Henson and Ben Laurie]
8171 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
8172 `openssl' and second, the shortcut symlinks for the `openssl <command>'
8173 are no longer created. This way we have a single and consistent command
8174 line interface `openssl <command>', similar to `cvs <command>'.
8175 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
8177 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
8178 BIT STRING wrapper always have zero unused bits.
8181 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
8184 *) Make the top-level INSTALL documentation easier to understand.
8187 *) Makefiles updated to exit if an error occurs in a sub-directory
8188 make (including if user presses ^C) [Paul Sutton]
8190 *) Make Montgomery context stuff explicit in RSA data structure.
8193 *) Fix build order of pem and err to allow for generated pem.h.
8196 *) Fix renumbering bug in X509_NAME_delete_entry().
8199 *) Enhanced the err-ins.pl script so it makes the error library number
8200 global and can add a library name. This is needed for external ASN1 and
8201 other error libraries.
8204 *) Fixed sk_insert which never worked properly.
8207 *) Fix ASN1 macros so they can handle indefinite length construted
8208 EXPLICIT tags. Some non standard certificates use these: they can now
8212 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
8213 into a single doc/ssleay.txt bundle. This way the information is still
8214 preserved but no longer messes up this directory. Now it's new room for
8215 the new set of documenation files.
8216 [Ralf S. Engelschall]
8218 *) SETs were incorrectly DER encoded. This was a major pain, because they
8219 shared code with SEQUENCEs, which aren't coded the same. This means that
8220 almost everything to do with SETs or SEQUENCEs has either changed name or
8221 number of arguments.
8222 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
8224 *) Fix test data to work with the above.
8227 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
8228 was already fixed by Eric for 0.9.1 it seems.
8229 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
8231 *) Autodetect FreeBSD3.
8234 *) Fix various bugs in Configure. This affects the following platforms:
8238 unixware-2.0-pentium
8242 *) Eliminate generated files from CVS. Reorder tests to regenerate files
8243 before they are needed.
8246 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
8250 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
8252 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
8253 changed SSLeay to OpenSSL in version strings.
8254 [Ralf S. Engelschall]
8256 *) Some fixups to the top-level documents.
8259 *) Fixed the nasty bug where rsaref.h was not found under compile-time
8260 because the symlink to include/ was missing.
8261 [Ralf S. Engelschall]
8263 *) Incorporated the popular no-RSA/DSA-only patches
8264 which allow to compile a RSA-free SSLeay.
8265 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
8267 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
8268 when "ssleay" is still not found.
8269 [Ralf S. Engelschall]
8271 *) Added more platforms to Configure: Cray T3E, HPUX 11,
8272 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
8274 *) Updated the README file.
8275 [Ralf S. Engelschall]
8277 *) Added various .cvsignore files in the CVS repository subdirs
8278 to make a "cvs update" really silent.
8279 [Ralf S. Engelschall]
8281 *) Recompiled the error-definition header files and added
8282 missing symbols to the Win32 linker tables.
8283 [Ralf S. Engelschall]
8285 *) Cleaned up the top-level documents;
8286 o new files: CHANGES and LICENSE
8287 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
8288 o merged COPYRIGHT into LICENSE
8289 o removed obsolete TODO file
8290 o renamed MICROSOFT to INSTALL.W32
8291 [Ralf S. Engelschall]
8293 *) Removed dummy files from the 0.9.1b source tree:
8294 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
8295 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
8296 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
8297 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
8298 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
8299 [Ralf S. Engelschall]
8301 *) Added various platform portability fixes.
8304 *) The Genesis of the OpenSSL rpject:
8305 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
8306 Young and Tim J. Hudson created while they were working for C2Net until
8308 [The OpenSSL Project]
8311 Changes between 0.9.0b and 0.9.1b [not released]
8313 *) Updated a few CA certificates under certs/
8316 *) Changed some BIGNUM api stuff.
8319 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
8320 DGUX x86, Linux Alpha, etc.
8323 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
8324 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
8328 *) Add -strparse option to asn1pars program which parses nested
8330 [Dr Stephen Henson <shenson@bigfoot.com>]
8332 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
8335 *) DSA fix for "ca" program.
8338 *) Added "-genkey" option to "dsaparam" program.
8341 *) Added RIPE MD160 (rmd160) message digest.
8344 *) Added -a (all) option to "ssleay version" command.
8347 *) Added PLATFORM define which is the id given to Configure.
8350 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
8353 *) Extended the ASN.1 parser routines.
8356 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
8359 *) Added a BN_CTX to the BN library.
8362 *) Fixed the weak key values in DES library
8365 *) Changed API in EVP library for cipher aliases.
8368 *) Added support for RC2/64bit cipher.
8371 *) Converted the lhash library to the crypto/mem.c functions.
8374 *) Added more recognized ASN.1 object ids.
8377 *) Added more RSA padding checks for SSL/TLS.
8380 *) Added BIO proxy/filter functionality.
8383 *) Added extra_certs to SSL_CTX which can be used
8384 send extra CA certificates to the client in the CA cert chain sending
8385 process. It can be configured with SSL_CTX_add_extra_chain_cert().
8388 *) Now Fortezza is denied in the authentication phase because
8389 this is key exchange mechanism is not supported by SSLeay at all.
8392 *) Additional PKCS1 checks.
8395 *) Support the string "TLSv1" for all TLS v1 ciphers.
8398 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
8399 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
8402 *) Fixed a few memory leaks.
8405 *) Fixed various code and comment typos.
8408 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
8409 bytes sent in the client random.
8410 [Edward Bishop <ebishop@spyglass.com>]