5 Changes between 0.9.8k and 0.9.8l [xx XXX xxxx]
7 *) Add --strict-warnings option to Configure script to include devteam
8 warnings in other configurations.
11 *) Add support for --libdir option and LIBDIR variable in makefiles. This
12 makes it possible to install openssl libraries in locations which
13 have names other than "lib", for example "/usr/lib64" which some
15 [Steve Henson, based on patch from Jeremy Utley]
17 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
18 X690 8.9.12 and can produce some misleading textual output of OIDs.
19 [Steve Henson, reported by Dan Kaminsky]
21 *) Delete MD2 from algorithm tables. This follows the recommendation in
22 several standards that it is not used in new applications due to
23 several cryptographic weaknesses. For binary compatibility reasons
24 the MD2 API is still compiled in by default.
27 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
31 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
32 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
34 [Guenter <lists@gknw.net>]
36 *) Fix the server certificate chain building code to use X509_verify_cert(),
37 it used to have an ad-hoc builder which was unable to cope with anything
38 other than a simple chain.
39 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
41 *) Don't check self signed certificate signatures in X509_verify_cert()
42 by default (a flag can override this): it just wastes time without
43 adding any security. As a useful side effect self signed root CAs
44 with non-FIPS digests are now usable in FIPS mode.
47 *) In dtls1_process_out_of_seq_message() the check if the current message
48 is already buffered was missing. For every new message was memory
49 allocated, allowing an attacker to perform an denial of service attack
50 with sending out of seq handshake messages until there is no memory
51 left. Additionally every future messege was buffered, even if the
52 sequence number made no sense and would be part of another handshake.
53 So only messages with sequence numbers less than 10 in advance will be
54 buffered. (CVE-2009-1378)
55 [Robin Seggelmann, discovered by Daniel Mentz]
57 *) Records are buffered if they arrive with a future epoch to be
58 processed after finishing the corresponding handshake. There is
59 currently no limitation to this buffer allowing an attacker to perform
60 a DOS attack with sending records with future epochs until there is no
61 memory left. This patch adds the pqueue_size() function to detemine
62 the size of a buffer and limits the record buffer to 100 entries.
64 [Robin Seggelmann, discovered by Daniel Mentz]
66 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
67 parent structure is freed. (CVE-2009-1379)
70 *) Handle non-blocking I/O properly in SSL_shutdown() call.
71 [Darryl Miles <darryl-mailinglists@netbauds.net>]
74 [Ilya O. <vrghost@gmail.com>]
76 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
78 *) Don't set val to NULL when freeing up structures, it is freed up by
79 underlying code. If sizeof(void *) > sizeof(long) this can result in
80 zeroing past the valid field. (CVE-2009-0789)
81 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
83 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
84 checked correctly. This would allow some invalid signed attributes to
85 appear to verify correctly. (CVE-2009-0591)
86 [Ivan Nestlerode <inestlerode@us.ibm.com>]
88 *) Reject UniversalString and BMPString types with invalid lengths. This
89 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
90 a legal length. (CVE-2009-0590)
93 *) Set S/MIME signing as the default purpose rather than setting it
94 unconditionally. This allows applications to override it at the store
98 *) Permit restricted recursion of ASN1 strings. This is needed in practice
99 to handle some structures.
102 *) Improve efficiency of mem_gets: don't search whole buffer each time
104 [Jeremy Shapiro <jnshapir@us.ibm.com>]
106 *) New -hex option for openssl rand.
109 *) Print out UTF8String and NumericString when parsing ASN1.
112 *) Support NumericString type for name components.
115 *) Allow CC in the environment to override the automatically chosen
116 compiler. Note that nothing is done to ensure flags work with the
120 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
122 *) Properly check EVP_VerifyFinal() and similar return values
124 [Ben Laurie, Bodo Moeller, Google Security Team]
126 *) Enable TLS extensions by default.
129 *) Allow the CHIL engine to be loaded, whether the application is
130 multithreaded or not. (This does not release the developer from the
131 obligation to set up the dynamic locking callbacks.)
132 [Sander Temme <sander@temme.net>]
134 *) Use correct exit code if there is an error in dgst command.
135 [Steve Henson; problem pointed out by Roland Dirlewanger]
137 *) Tweak Configure so that you need to say "experimental-jpake" to enable
138 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
141 *) Add experimental JPAKE support, including demo authentication in
142 s_client and s_server.
145 *) Set the comparison function in v3_addr_canonize().
146 [Rob Austein <sra@hactrn.net>]
148 *) Add support for XMPP STARTTLS in s_client.
149 [Philip Paeps <philip@freebsd.org>]
151 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
152 to ensure that even with this option, only ciphersuites in the
153 server's preference list will be accepted. (Note that the option
154 applies only when resuming a session, so the earlier behavior was
155 just about the algorithm choice for symmetric cryptography.)
158 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
160 *) Fix NULL pointer dereference if a DTLS server recieved
161 ChangeCipherSpec as first record (CVE-2009-1386)
162 [Bodo Moeller, discovered by Alex Lam]
164 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
165 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
168 *) The fix in 0.9.8c that supposedly got rid of unsafe
169 double-checked locking was incomplete for RSA blinding,
170 addressing just one layer of what turns out to have been
171 doubly unsafe triple-checked locking.
173 So now fix this for real by retiring the MONT_HELPER macro
174 in crypto/rsa/rsa_eay.c.
176 [Bodo Moeller; problem pointed out by Marius Schilder]
178 *) Various precautionary measures:
180 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
182 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
183 (NB: This would require knowledge of the secret session ticket key
184 to exploit, in which case you'd be SOL either way.)
186 - Change bn_nist.c so that it will properly handle input BIGNUMs
187 outside the expected range.
189 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
192 [Neel Mehta, Bodo Moeller]
194 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
195 the load fails. Useful for distros.
196 [Ben Laurie and the FreeBSD team]
198 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
201 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
204 *) Expand ENGINE to support engine supplied SSL client certificate functions.
206 This work was sponsored by Logica.
209 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
210 keystores. Support for SSL/TLS client authentication too.
211 Not compiled unless enable-capieng specified to Configure.
213 This work was sponsored by Logica.
216 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
217 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
218 attribute creation routines such as certifcate requests and PKCS#12
222 Changes between 0.9.8g and 0.9.8h [28 May 2008]
224 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
225 handshake which could lead to a cilent crash as found using the
226 Codenomicon TLS test suite (CVE-2008-1672)
227 [Steve Henson, Mark Cox]
229 *) Fix double free in TLS server name extensions which could lead to
230 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
233 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
235 Clear the error queue to ensure that error entries left from
236 older function calls do not interfere with the correct operation.
237 [Lutz Jaenicke, Erik de Castro Lopo]
239 *) Remove root CA certificates of commercial CAs:
241 The OpenSSL project does not recommend any specific CA and does not
242 have any policy with respect to including or excluding any CA.
243 Therefore it does not make any sense to ship an arbitrary selection
244 of root CA certificates with the OpenSSL software.
247 *) RSA OAEP patches to fix two separate invalid memory reads.
248 The first one involves inputs when 'lzero' is greater than
249 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
250 before the beginning of from). The second one involves inputs where
251 the 'db' section contains nothing but zeroes (there is a one-byte
252 invalid read after the end of 'db').
253 [Ivan Nestlerode <inestlerode@us.ibm.com>]
255 *) Partial backport from 0.9.9-dev:
257 Introduce bn_mul_mont (dedicated Montgomery multiplication
258 procedure) as a candidate for BIGNUM assembler implementation.
259 While 0.9.9-dev uses assembler for various architectures, only
260 x86_64 is available by default here in the 0.9.8 branch, and
261 32-bit x86 is available through a compile-time setting.
263 To try the 32-bit x86 assembler implementation, use Configure
264 option "enable-montasm" (which exists only for this backport).
266 As "enable-montasm" for 32-bit x86 disclaims code stability
267 anyway, in this constellation we activate additional code
268 backported from 0.9.9-dev for further performance improvements,
269 namely BN_from_montgomery_word. (To enable this otherwise,
270 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
272 [Andy Polyakov (backport partially by Bodo Moeller)]
274 *) Add TLS session ticket callback. This allows an application to set
275 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
276 values. This is useful for key rollover for example where several key
277 sets may exist with different names.
280 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
281 This was broken until now in 0.9.8 releases, such that the only way
282 a registered ENGINE could be used (assuming it initialises
283 successfully on the host) was to explicitly set it as the default
284 for the relevant algorithms. This is in contradiction with 0.9.7
285 behaviour and the documentation. With this fix, when an ENGINE is
286 registered into a given algorithm's table of implementations, the
287 'uptodate' flag is reset so that auto-discovery will be used next
288 time a new context for that algorithm attempts to select an
290 [Ian Lister (tweaked by Geoff Thorpe)]
292 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
293 implemention in the following ways:
295 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
298 Lack of BER streaming support means one pass streaming processing is
299 only supported if data is detached: setting the streaming flag is
300 ignored for embedded content.
302 CMS support is disabled by default and must be explicitly enabled
303 with the enable-cms configuration option.
306 *) Update the GMP engine glue to do direct copies between BIGNUM and
307 mpz_t when openssl and GMP use the same limb size. Otherwise the
308 existing "conversion via a text string export" trick is still used.
309 [Paul Sheer <paulsheer@gmail.com>]
311 *) Zlib compression BIO. This is a filter BIO which compressed and
312 uncompresses any data passed through it.
315 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
316 RFC3394 compatible AES key wrapping.
319 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
320 sets string data without copying. X509_ALGOR_set0() and
321 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
322 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
323 from an X509_ATTRIBUTE structure optionally checking it occurs only
324 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
328 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
329 to get the expected BN_FLG_CONSTTIME behavior.
330 [Bodo Moeller (Google)]
334 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
335 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
336 - added some more tests to do_tests.pl
337 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
338 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
339 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
340 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
341 - various changes to netware.pl to enable gcc-cross builds on Win32
343 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
344 - various changes to fix missing prototype warnings
345 - fixed x86nasm.pl to create correct asm files for NASM COFF output
346 - added AES, WHIRLPOOL and CPUID assembler code to build files
347 - added missing AES assembler make rules to mk1mf.pl
348 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
349 [Guenter Knauf <eflash@gmx.net>]
351 *) Implement certificate status request TLS extension defined in RFC3546.
352 A client can set the appropriate parameters and receive the encoded
353 OCSP response via a callback. A server can query the supplied parameters
354 and set the encoded OCSP response in the callback. Add simplified examples
355 to s_client and s_server.
358 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
361 + Binary incompatibility of ssl_ctx_st structure
362 + DTLS interoperation with non-compliant servers
363 + Don't call get_session_cb() without proposed session
364 + Fix ia64 assembler code
365 [Andy Polyakov, Steve Henson]
367 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
369 *) DTLS Handshake overhaul. There were longstanding issues with
370 OpenSSL DTLS implementation, which were making it impossible for
371 RFC 4347 compliant client to communicate with OpenSSL server.
372 Unfortunately just fixing these incompatibilities would "cut off"
373 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
374 server keeps tolerating non RFC compliant syntax. The opposite is
375 not true, 0.9.8f client can not communicate with earlier server.
376 This update even addresses CVE-2007-4995.
379 *) Changes to avoid need for function casts in OpenSSL: some compilers
380 (gcc 4.2 and later) reject their use.
381 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
384 *) Add RFC4507 support to OpenSSL. This includes the corrections in
385 RFC4507bis. The encrypted ticket format is an encrypted encoded
386 SSL_SESSION structure, that way new session features are automatically
389 If a client application caches session in an SSL_SESSION structure
390 support is transparent because tickets are now stored in the encoded
393 The SSL_CTX structure automatically generates keys for ticket
394 protection in servers so again support should be possible
395 with no application modification.
397 If a client or server wishes to disable RFC4507 support then the option
398 SSL_OP_NO_TICKET can be set.
400 Add a TLS extension debugging callback to allow the contents of any client
401 or server extensions to be examined.
403 This work was sponsored by Google.
406 *) Add initial support for TLS extensions, specifically for the server_name
407 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
408 have new members for a host name. The SSL data structure has an
409 additional member SSL_CTX *initial_ctx so that new sessions can be
410 stored in that context to allow for session resumption, even after the
411 SSL has been switched to a new SSL_CTX in reaction to a client's
412 server_name extension.
414 New functions (subject to change):
417 SSL_get_servername_type()
420 New CTRL codes and macros (subject to change):
422 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
423 - SSL_CTX_set_tlsext_servername_callback()
424 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
425 - SSL_CTX_set_tlsext_servername_arg()
426 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
428 openssl s_client has a new '-servername ...' option.
430 openssl s_server has new options '-servername_host ...', '-cert2 ...',
431 '-key2 ...', '-servername_fatal' (subject to change). This allows
432 testing the HostName extension for a specific single host name ('-cert'
433 and '-key' remain fallbacks for handshakes without HostName
434 negotiation). If the unrecogninzed_name alert has to be sent, this by
435 default is a warning; it becomes fatal with the '-servername_fatal'
438 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
440 *) Add AES and SSE2 assembly language support to VC++ build.
443 *) Mitigate attack on final subtraction in Montgomery reduction.
446 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
447 (which previously caused an internal error).
450 *) Squeeze another 10% out of IGE mode when in != out.
453 *) AES IGE mode speedup.
454 [Dean Gaudet (Google)]
456 *) Add the Korean symmetric 128-bit cipher SEED (see
457 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
458 add SEED ciphersuites from RFC 4162:
460 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
461 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
462 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
463 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
465 To minimize changes between patchlevels in the OpenSSL 0.9.8
466 series, SEED remains excluded from compilation unless OpenSSL
467 is configured with 'enable-seed'.
470 *) Mitigate branch prediction attacks, which can be practical if a
471 single processor is shared, allowing a spy process to extract
472 information. For detailed background information, see
473 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
474 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
475 and Necessary Software Countermeasures"). The core of the change
476 are new versions BN_div_no_branch() and
477 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
478 respectively, which are slower, but avoid the security-relevant
479 conditional branches. These are automatically called by BN_div()
480 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
481 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
482 remove a conditional branch.
484 BN_FLG_CONSTTIME is the new name for the previous
485 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
486 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
487 in the exponent causes BN_mod_exp_mont() to use the alternative
488 implementation in BN_mod_exp_mont_consttime().) The old name
489 remains as a deprecated alias.
491 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
492 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
493 constant-time implementations for more than just exponentiation.
494 Here too the old name is kept as a deprecated alias.
496 BN_BLINDING_new() will now use BN_dup() for the modulus so that
497 the BN_BLINDING structure gets an independent copy of the
498 modulus. This means that the previous "BIGNUM *m" argument to
499 BN_BLINDING_new() and to BN_BLINDING_create_param() now
500 essentially becomes "const BIGNUM *m", although we can't actually
501 change this in the header file before 0.9.9. It allows
502 RSA_setup_blinding() to use BN_with_flags() on the modulus to
503 enable BN_FLG_CONSTTIME.
505 [Matthew D Wood (Intel Corp)]
507 *) In the SSL/TLS server implementation, be strict about session ID
508 context matching (which matters if an application uses a single
509 external cache for different purposes). Previously,
510 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
511 set. This did ensure strict client verification, but meant that,
512 with applications using a single external cache for quite
513 different requirements, clients could circumvent ciphersuite
514 restrictions for a given session ID context by starting a session
515 in a different context.
518 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
519 a ciphersuite string such as "DEFAULT:RSA" cannot enable
520 authentication-only ciphersuites.
523 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
524 not complete and could lead to a possible single byte overflow
525 (CVE-2007-5135) [Ben Laurie]
527 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
529 *) Since AES128 and AES256 (and similarly Camellia128 and
530 Camellia256) share a single mask bit in the logic of
531 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
532 kludge to work properly if AES128 is available and AES256 isn't
533 (or if Camellia128 is available and Camellia256 isn't).
536 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
537 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
538 When a point or a seed is encoded in a BIT STRING, we need to
539 prevent the removal of trailing zero bits to get the proper DER
540 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
541 of a NamedBitList, for which trailing 0 bits need to be removed.)
544 *) Have SSL/TLS server implementation tolerate "mismatched" record
545 protocol version while receiving ClientHello even if the
546 ClientHello is fragmented. (The server can't insist on the
547 particular protocol version it has chosen before the ServerHello
548 message has informed the client about his choice.)
551 *) Add RFC 3779 support.
552 [Rob Austein for ARIN, Ben Laurie]
554 *) Load error codes if they are not already present instead of using a
555 static variable. This allows them to be cleanly unloaded and reloaded.
556 Improve header file function name parsing.
559 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
560 or CAPABILITY handshake as required by RFCs.
563 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
565 *) Introduce limits to prevent malicious keys being able to
566 cause a denial of service. (CVE-2006-2940)
567 [Steve Henson, Bodo Moeller]
569 *) Fix ASN.1 parsing of certain invalid structures that can result
570 in a denial of service. (CVE-2006-2937) [Steve Henson]
572 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
573 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
575 *) Fix SSL client code which could crash if connecting to a
576 malicious SSLv2 server. (CVE-2006-4343)
577 [Tavis Ormandy and Will Drewry, Google Security Team]
579 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
580 match only those. Before that, "AES256-SHA" would be interpreted
581 as a pattern and match "AES128-SHA" too (since AES128-SHA got
582 the same strength classification in 0.9.7h) as we currently only
583 have a single AES bit in the ciphersuite description bitmap.
584 That change, however, also applied to ciphersuite strings such as
585 "RC4-MD5" that intentionally matched multiple ciphersuites --
586 namely, SSL 2.0 ciphersuites in addition to the more common ones
587 from SSL 3.0/TLS 1.0.
589 So we change the selection algorithm again: Naming an explicit
590 ciphersuite selects this one ciphersuite, and any other similar
591 ciphersuite (same bitmap) from *other* protocol versions.
592 Thus, "RC4-MD5" again will properly select both the SSL 2.0
593 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
595 Since SSL 2.0 does not have any ciphersuites for which the
596 128/256 bit distinction would be relevant, this works for now.
597 The proper fix will be to use different bits for AES128 and
598 AES256, which would have avoided the problems from the beginning;
599 however, bits are scarce, so we can only do this in a new release
600 (not just a patchlevel) when we can change the SSL_CIPHER
601 definition to split the single 'unsigned long mask' bitmap into
602 multiple values to extend the available space.
606 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
608 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
609 (CVE-2006-4339) [Ben Laurie and Google Security Team]
611 *) Add AES IGE and biIGE modes.
614 *) Change the Unix randomness entropy gathering to use poll() when
615 possible instead of select(), since the latter has some
616 undesirable limitations.
617 [Darryl Miles via Richard Levitte and Bodo Moeller]
619 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
620 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
621 cannot be implicitly activated as part of, e.g., the "AES" alias.
622 However, please upgrade to OpenSSL 0.9.9[-dev] for
623 non-experimental use of the ECC ciphersuites to get TLS extension
624 support, which is required for curve and point format negotiation
625 to avoid potential handshake problems.
628 *) Disable rogue ciphersuites:
630 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
631 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
632 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
634 The latter two were purportedly from
635 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
638 Also deactivate the remaining ciphersuites from
639 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
640 unofficial, and the ID has long expired.
643 *) Fix RSA blinding Heisenbug (problems sometimes occured on
644 dual-core machines) and other potential thread-safety issues.
647 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
648 versions), which is now available for royalty-free use
649 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
650 Also, add Camellia TLS ciphersuites from RFC 4132.
652 To minimize changes between patchlevels in the OpenSSL 0.9.8
653 series, Camellia remains excluded from compilation unless OpenSSL
654 is configured with 'enable-camellia'.
657 *) Disable the padding bug check when compression is in use. The padding
658 bug check assumes the first packet is of even length, this is not
659 necessarily true if compresssion is enabled and can result in false
660 positives causing handshake failure. The actual bug test is ancient
661 code so it is hoped that implementations will either have fixed it by
662 now or any which still have the bug do not support compression.
665 Changes between 0.9.8a and 0.9.8b [04 May 2006]
667 *) When applying a cipher rule check to see if string match is an explicit
668 cipher suite and only match that one cipher suite if it is.
671 *) Link in manifests for VC++ if needed.
672 [Austin Ziegler <halostatue@gmail.com>]
674 *) Update support for ECC-based TLS ciphersuites according to
675 draft-ietf-tls-ecc-12.txt with proposed changes (but without
676 TLS extensions, which are supported starting with the 0.9.9
677 branch, not in the OpenSSL 0.9.8 branch).
680 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
681 opaque EVP_CIPHER_CTX handling.
684 *) Fixes and enhancements to zlib compression code. We now only use
685 "zlib1.dll" and use the default __cdecl calling convention on Win32
686 to conform with the standards mentioned here:
687 http://www.zlib.net/DLL_FAQ.txt
688 Static zlib linking now works on Windows and the new --with-zlib-include
689 --with-zlib-lib options to Configure can be used to supply the location
690 of the headers and library. Gracefully handle case where zlib library
694 *) Several fixes and enhancements to the OID generation code. The old code
695 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
696 handle numbers larger than ULONG_MAX, truncated printing and had a
697 non standard OBJ_obj2txt() behaviour.
700 *) Add support for building of engines under engine/ as shared libraries
701 under VC++ build system.
704 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
705 Hopefully, we will not see any false combination of paths any more.
708 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
710 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
711 (part of SSL_OP_ALL). This option used to disable the
712 countermeasure against man-in-the-middle protocol-version
713 rollback in the SSL 2.0 server implementation, which is a bad
714 idea. (CVE-2005-2969)
716 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
717 for Information Security, National Institute of Advanced Industrial
718 Science and Technology [AIST], Japan)]
720 *) Add two function to clear and return the verify parameter flags.
723 *) Keep cipherlists sorted in the source instead of sorting them at
724 runtime, thus removing the need for a lock.
727 *) Avoid some small subgroup attacks in Diffie-Hellman.
728 [Nick Mathewson and Ben Laurie]
730 *) Add functions for well-known primes.
733 *) Extended Windows CE support.
734 [Satoshi Nakamura and Andy Polyakov]
736 *) Initialize SSL_METHOD structures at compile time instead of during
737 runtime, thus removing the need for a lock.
740 *) Make PKCS7_decrypt() work even if no certificate is supplied by
741 attempting to decrypt each encrypted key in turn. Add support to
745 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
747 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
750 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
753 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
754 key into the same file any more.
757 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
760 *) Add -utf8 command line and config file option to 'ca'.
761 [Stefan <stf@udoma.org]
763 *) Removed the macro des_crypt(), as it seems to conflict with some
764 libraries. Use DES_crypt().
767 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
768 involves renaming the source and generated shared-libs for
769 both. The engines will accept the corrected or legacy ids
770 ('ncipher' and '4758_cca' respectively) when binding. NB,
771 this only applies when building 'shared'.
772 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
774 *) Add attribute functions to EVP_PKEY structure. Modify
775 PKCS12_create() to recognize a CSP name attribute and
776 use it. Make -CSP option work again in pkcs12 utility.
779 *) Add new functionality to the bn blinding code:
780 - automatic re-creation of the BN_BLINDING parameters after
781 a fixed number of uses (currently 32)
782 - add new function for parameter creation
783 - introduce flags to control the update behaviour of the
784 BN_BLINDING parameters
785 - hide BN_BLINDING structure
786 Add a second BN_BLINDING slot to the RSA structure to improve
787 performance when a single RSA object is shared among several
791 *) Add support for DTLS.
792 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
794 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
795 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
798 *) Remove buggy and incompletet DH cert support from
799 ssl/ssl_rsa.c and ssl/s3_both.c
802 *) Use SHA-1 instead of MD5 as the default digest algorithm for
803 the apps/openssl applications.
806 *) Compile clean with "-Wall -Wmissing-prototypes
807 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
808 DEBUG_SAFESTACK must also be set.
811 *) Change ./Configure so that certain algorithms can be disabled by default.
812 The new counterpiece to "no-xxx" is "enable-xxx".
814 The patented RC5 and MDC2 algorithms will now be disabled unless
815 "enable-rc5" and "enable-mdc2", respectively, are specified.
817 (IDEA remains enabled despite being patented. This is because IDEA
818 is frequently required for interoperability, and there is no license
819 fee for non-commercial use. As before, "no-idea" can be used to
820 avoid this algorithm.)
824 *) Add processing of proxy certificates (see RFC 3820). This work was
825 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
826 EGEE (Enabling Grids for E-science in Europe).
829 *) RC4 performance overhaul on modern architectures/implementations, such
830 as Intel P4, IA-64 and AMD64.
833 *) New utility extract-section.pl. This can be used specify an alternative
834 section number in a pod file instead of having to treat each file as
835 a separate case in Makefile. This can be done by adding two lines to the
838 =for comment openssl_section:XXX
840 The blank line is mandatory.
844 *) New arguments -certform, -keyform and -pass for s_client and s_server
845 to allow alternative format key and certificate files and passphrase
849 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
850 update associated structures and add various utility functions.
852 Add new policy related verify parameters, include policy checking in
853 standard verify code. Enhance 'smime' application with extra parameters
854 to support policy checking and print out.
857 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
858 Nehemiah processors. These extensions support AES encryption in hardware
859 as well as RNG (though RNG support is currently disabled).
860 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
862 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
865 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
866 [Andy Polyakov and a number of other people]
868 *) Improved PowerPC platform support. Most notably BIGNUM assembler
869 implementation contributed by IBM.
870 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
872 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
873 exponent rather than 'unsigned long'. There is a corresponding change to
874 the new 'rsa_keygen' element of the RSA_METHOD structure.
875 [Jelte Jansen, Geoff Thorpe]
877 *) Functionality for creating the initial serial number file is now
878 moved from CA.pl to the 'ca' utility with a new option -create_serial.
880 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
881 number file to 1, which is bound to cause problems. To avoid
882 the problems while respecting compatibility between different 0.9.7
883 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
884 CA.pl for serial number initialization. With the new release 0.9.8,
885 we can fix the problem directly in the 'ca' utility.)
888 *) Reduced header interdepencies by declaring more opaque objects in
889 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
890 give fewer recursive includes, which could break lazy source code - so
891 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
892 developers should define this symbol when building and using openssl to
893 ensure they track the recommended behaviour, interfaces, [etc], but
894 backwards-compatible behaviour prevails when this isn't defined.
897 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
900 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
901 This will generate a random key of the appropriate length based on the
902 cipher context. The EVP_CIPHER can provide its own random key generation
903 routine to support keys of a specific form. This is used in the des and
904 3des routines to generate a key of the correct parity. Update S/MIME
905 code to use new functions and hence generate correct parity DES keys.
906 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
907 valid (weak or incorrect parity).
910 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
911 as looking them up. This is useful when the verified structure may contain
912 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
913 present unless the new PKCS7_NO_CRL flag is asserted.
916 *) Extend ASN1 oid configuration module. It now additionally accepts the
919 shortName = some long name, 1.2.3.4
922 *) Reimplemented the BN_CTX implementation. There is now no more static
923 limitation on the number of variables it can handle nor the depth of the
924 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
925 information can now expand as required, and rather than having a single
926 static array of bignums, BN_CTX now uses a linked-list of such arrays
927 allowing it to expand on demand whilst maintaining the usefulness of
931 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
932 to allow all RSA operations to function using a single BN_CTX.
935 *) Preliminary support for certificate policy evaluation and checking. This
936 is initially intended to pass the tests outlined in "Conformance Testing
937 of Relying Party Client Certificate Path Processing Logic" v1.07.
940 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
941 remained unused and not that useful. A variety of other little bignum
942 tweaks and fixes have also been made continuing on from the audit (see
946 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
947 associated ASN1, EVP and SSL functions and old ASN1 macros.
950 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
951 and this should never fail. So the return value from the use of
952 BN_set_word() (which can fail due to needless expansion) is now deprecated;
953 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
956 *) BN_CTX_get() should return zero-valued bignums, providing the same
957 initialised value as BN_new().
958 [Geoff Thorpe, suggested by Ulf Möller]
960 *) Support for inhibitAnyPolicy certificate extension.
963 *) An audit of the BIGNUM code is underway, for which debugging code is
964 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
965 is considered valid when processing BIGNUMs, and causes execution to
966 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
967 further steps are taken to deliberately pollute unused data in BIGNUM
968 structures to try and expose faulty code further on. For now, openssl will
969 (in its default mode of operation) continue to tolerate the inconsistent
970 forms that it has tolerated in the past, but authors and packagers should
971 consider trying openssl and their own applications when compiled with
972 these debugging symbols defined. It will help highlight potential bugs in
973 their own code, and will improve the test coverage for OpenSSL itself. At
974 some point, these tighter rules will become openssl's default to improve
975 maintainability, though the assert()s and other overheads will remain only
976 in debugging configurations. See bn.h for more details.
977 [Geoff Thorpe, Nils Larsch, Ulf Möller]
979 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
980 that can only be obtained through BN_CTX_new() (which implicitly
981 initialises it). The presence of this function only made it possible
982 to overwrite an existing structure (and cause memory leaks).
985 *) Because of the callback-based approach for implementing LHASH as a
986 template type, lh_insert() adds opaque objects to hash-tables and
987 lh_doall() or lh_doall_arg() are typically used with a destructor callback
988 to clean up those corresponding objects before destroying the hash table
989 (and losing the object pointers). So some over-zealous constifications in
990 LHASH have been relaxed so that lh_insert() does not take (nor store) the
991 objects as "const" and the lh_doall[_arg] callback wrappers are not
992 prototyped to have "const" restrictions on the object pointers they are
993 given (and so aren't required to cast them away any more).
996 *) The tmdiff.h API was so ugly and minimal that our own timing utility
997 (speed) prefers to use its own implementation. The two implementations
998 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
999 its object type properly exposed (MS_TM) instead of casting to/from "char
1000 *". This may still change yet if someone realises MS_TM and "ms_time_***"
1001 aren't necessarily the greatest nomenclatures - but this is what was used
1002 internally to the implementation so I've used that for now.
1005 *) Ensure that deprecated functions do not get compiled when
1006 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
1007 the self-tests were still using deprecated key-generation functions so
1008 these have been updated also.
1011 *) Reorganise PKCS#7 code to separate the digest location functionality
1012 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
1013 New function PKCS7_set_digest() to set the digest type for PKCS#7
1014 digestedData type. Add additional code to correctly generate the
1015 digestedData type and add support for this type in PKCS7 initialization
1019 *) New function PKCS7_set0_type_other() this initializes a PKCS7
1020 structure of type "other".
1023 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
1024 sure the loop does correctly stop and breaking ("division by zero")
1025 modulus operations are not performed. The (pre-generated) prime
1026 table crypto/bn/bn_prime.h was already correct, but it could not be
1027 re-generated on some platforms because of the "division by zero"
1028 situation in the script.
1029 [Ralf S. Engelschall]
1031 *) Update support for ECC-based TLS ciphersuites according to
1032 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
1033 SHA-1 now is only used for "small" curves (where the
1034 representation of a field element takes up to 24 bytes); for
1035 larger curves, the field element resulting from ECDH is directly
1036 used as premaster secret.
1037 [Douglas Stebila (Sun Microsystems Laboratories)]
1039 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
1040 curve secp160r1 to the tests.
1041 [Douglas Stebila (Sun Microsystems Laboratories)]
1043 *) Add the possibility to load symbols globally with DSO.
1044 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
1046 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
1047 control of the error stack.
1050 *) Add support for STORE in ENGINE.
1053 *) Add the STORE type. The intention is to provide a common interface
1054 to certificate and key stores, be they simple file-based stores, or
1055 HSM-type store, or LDAP stores, or...
1056 NOTE: The code is currently UNTESTED and isn't really used anywhere.
1059 *) Add a generic structure called OPENSSL_ITEM. This can be used to
1060 pass a list of arguments to any function as well as provide a way
1061 for a function to pass data back to the caller.
1064 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
1065 works like BUF_strdup() but can be used to duplicate a portion of
1066 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
1070 *) Add the function sk_find_ex() which works like sk_find(), but will
1071 return an index to an element even if an exact match couldn't be
1072 found. The index is guaranteed to point at the element where the
1073 searched-for key would be inserted to preserve sorting order.
1076 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
1077 takes an extra flags argument for optional functionality. Currently,
1078 the following flags are defined:
1080 OBJ_BSEARCH_VALUE_ON_NOMATCH
1081 This one gets OBJ_bsearch_ex() to return a pointer to the first
1082 element where the comparing function returns a negative or zero
1085 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
1086 This one gets OBJ_bsearch_ex() to return a pointer to the first
1087 element where the comparing function returns zero. This is useful
1088 if there are more than one element where the comparing function
1092 *) Make it possible to create self-signed certificates with 'openssl ca'
1093 in such a way that the self-signed certificate becomes part of the
1094 CA database and uses the same mechanisms for serial number generation
1095 as all other certificate signing. The new flag '-selfsign' enables
1096 this functionality. Adapt CA.sh and CA.pl.in.
1099 *) Add functionality to check the public key of a certificate request
1100 against a given private. This is useful to check that a certificate
1101 request can be signed by that key (self-signing).
1104 *) Make it possible to have multiple active certificates with the same
1105 subject in the CA index file. This is done only if the keyword
1106 'unique_subject' is set to 'no' in the main CA section (default
1107 if 'CA_default') of the configuration file. The value is saved
1108 with the database itself in a separate index attribute file,
1109 named like the index file with '.attr' appended to the name.
1112 *) Generate muti valued AVAs using '+' notation in config files for
1116 *) Support for nameConstraints certificate extension.
1119 *) Support for policyConstraints certificate extension.
1122 *) Support for policyMappings certificate extension.
1125 *) Make sure the default DSA_METHOD implementation only uses its
1126 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
1127 and change its own handlers to be NULL so as to remove unnecessary
1128 indirection. This lets alternative implementations fallback to the
1129 default implementation more easily.
1132 *) Support for directoryName in GeneralName related extensions
1136 *) Make it possible to link applications using Makefile.shared.
1137 Make that possible even when linking against static libraries!
1140 *) Support for single pass processing for S/MIME signing. This now
1141 means that S/MIME signing can be done from a pipe, in addition
1142 cleartext signing (multipart/signed type) is effectively streaming
1143 and the signed data does not need to be all held in memory.
1145 This is done with a new flag PKCS7_STREAM. When this flag is set
1146 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
1147 is done after the data is output (and digests calculated) in
1148 SMIME_write_PKCS7().
1151 *) Add full support for -rpath/-R, both in shared libraries and
1152 applications, at least on the platforms where it's known how
1156 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
1157 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
1158 will now compute a table of multiples of the generator that
1159 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
1160 faster (notably in the case of a single point multiplication,
1161 scalar * generator).
1162 [Nils Larsch, Bodo Moeller]
1164 *) IPv6 support for certificate extensions. The various extensions
1165 which use the IP:a.b.c.d can now take IPv6 addresses using the
1166 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
1170 *) Added an ENGINE that implements RSA by performing private key
1171 exponentiations with the GMP library. The conversions to and from
1172 GMP's mpz_t format aren't optimised nor are any montgomery forms
1173 cached, and on x86 it appears OpenSSL's own performance has caught up.
1174 However there are likely to be other architectures where GMP could
1175 provide a boost. This ENGINE is not built in by default, but it can be
1176 specified at Configure time and should be accompanied by the necessary
1177 linker additions, eg;
1178 ./config -DOPENSSL_USE_GMP -lgmp
1181 *) "openssl engine" will not display ENGINE/DSO load failure errors when
1182 testing availability of engines with "-t" - the old behaviour is
1183 produced by increasing the feature's verbosity with "-tt".
1186 *) ECDSA routines: under certain error conditions uninitialized BN objects
1187 could be freed. Solution: make sure initialization is performed early
1188 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
1192 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
1193 and DH_METHOD (eg. by ENGINE implementations) to override the normal
1194 software implementations. For DSA and DH, parameter generation can
1195 also be overriden by providing the appropriate method callbacks.
1198 *) Change the "progress" mechanism used in key-generation and
1199 primality testing to functions that take a new BN_GENCB pointer in
1200 place of callback/argument pairs. The new API functions have "_ex"
1201 postfixes and the older functions are reimplemented as wrappers for
1202 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
1203 declarations of the old functions to help (graceful) attempts to
1204 migrate to the new functions. Also, the new key-generation API
1205 functions operate on a caller-supplied key-structure and return
1206 success/failure rather than returning a key or NULL - this is to
1207 help make "keygen" another member function of RSA_METHOD etc.
1209 Example for using the new callback interface:
1211 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
1215 BN_GENCB_set(&my_cb, my_callback, my_arg);
1217 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
1218 /* For the meaning of a, b in calls to my_callback(), see the
1219 * documentation of the function that calls the callback.
1220 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
1221 * my_callback should return 1 if it wants BN_is_prime_ex()
1222 * to continue, or 0 to stop.
1227 *) Change the ZLIB compression method to be stateful, and make it
1228 available to TLS with the number defined in
1229 draft-ietf-tls-compression-04.txt.
1232 *) Add the ASN.1 structures and functions for CertificatePair, which
1233 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
1235 CertificatePair ::= SEQUENCE {
1236 forward [0] Certificate OPTIONAL,
1237 reverse [1] Certificate OPTIONAL,
1238 -- at least one of the pair shall be present -- }
1240 Also implement the PEM functions to read and write certificate
1241 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
1243 This needed to be defined, mostly for the sake of the LDAP
1244 attribute crossCertificatePair, but may prove useful elsewhere as
1248 *) Make it possible to inhibit symlinking of shared libraries in
1249 Makefile.shared, for Cygwin's sake.
1252 *) Extend the BIGNUM API by creating a function
1253 void BN_set_negative(BIGNUM *a, int neg);
1254 and a macro that behave like
1255 int BN_is_negative(const BIGNUM *a);
1257 to avoid the need to access 'a->neg' directly in applications.
1260 *) Implement fast modular reduction for pseudo-Mersenne primes
1261 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
1262 EC_GROUP_new_curve_GFp() will now automatically use this
1264 [Nils Larsch <nla@trustcenter.de>]
1266 *) Add new lock type (CRYPTO_LOCK_BN).
1269 *) Change the ENGINE framework to automatically load engines
1270 dynamically from specific directories unless they could be
1271 found to already be built in or loaded. Move all the
1272 current engines except for the cryptodev one to a new
1274 The engines in engines/ are built as shared libraries if
1275 the "shared" options was given to ./Configure or ./config.
1276 Otherwise, they are inserted in libcrypto.a.
1277 /usr/local/ssl/engines is the default directory for dynamic
1278 engines, but that can be overriden at configure time through
1279 the usual use of --prefix and/or --openssldir, and at run
1280 time with the environment variable OPENSSL_ENGINES.
1281 [Geoff Thorpe and Richard Levitte]
1283 *) Add Makefile.shared, a helper makefile to build shared
1284 libraries. Addapt Makefile.org.
1287 *) Add version info to Win32 DLLs.
1288 [Peter 'Luna' Runestig" <peter@runestig.com>]
1290 *) Add new 'medium level' PKCS#12 API. Certificates and keys
1291 can be added using this API to created arbitrary PKCS#12
1292 files while avoiding the low level API.
1294 New options to PKCS12_create(), key or cert can be NULL and
1295 will then be omitted from the output file. The encryption
1296 algorithm NIDs can be set to -1 for no encryption, the mac
1297 iteration count can be set to 0 to omit the mac.
1299 Enhance pkcs12 utility by making the -nokeys and -nocerts
1300 options work when creating a PKCS#12 file. New option -nomac
1301 to omit the mac, NONE can be set for an encryption algorithm.
1302 New code is modified to use the enhanced PKCS12_create()
1303 instead of the low level API.
1306 *) Extend ASN1 encoder to support indefinite length constructed
1307 encoding. This can output sequences tags and octet strings in
1308 this form. Modify pk7_asn1.c to support indefinite length
1309 encoding. This is experimental and needs additional code to
1310 be useful, such as an ASN1 bio and some enhanced streaming
1313 Extend template encode functionality so that tagging is passed
1314 down to the template encoder.
1317 *) Let 'openssl req' fail if an argument to '-newkey' is not
1318 recognized instead of using RSA as a default.
1321 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
1322 As these are not official, they are not included in "ALL";
1323 the "ECCdraft" ciphersuite group alias can be used to select them.
1324 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
1326 *) Add ECDH engine support.
1327 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
1329 *) Add ECDH in new directory crypto/ecdh/.
1330 [Douglas Stebila (Sun Microsystems Laboratories)]
1332 *) Let BN_rand_range() abort with an error after 100 iterations
1333 without success (which indicates a broken PRNG).
1336 *) Change BN_mod_sqrt() so that it verifies that the input value
1337 is really the square of the return value. (Previously,
1338 BN_mod_sqrt would show GIGO behaviour.)
1341 *) Add named elliptic curves over binary fields from X9.62, SECG,
1342 and WAP/WTLS; add OIDs that were still missing.
1344 [Sheueling Chang Shantz and Douglas Stebila
1345 (Sun Microsystems Laboratories)]
1347 *) Extend the EC library for elliptic curves over binary fields
1348 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
1351 EC_GF2m_simple_method
1355 EC_GROUP_new_curve_GF2m
1356 EC_GROUP_set_curve_GF2m
1357 EC_GROUP_get_curve_GF2m
1358 EC_POINT_set_affine_coordinates_GF2m
1359 EC_POINT_get_affine_coordinates_GF2m
1360 EC_POINT_set_compressed_coordinates_GF2m
1362 Point compression for binary fields is disabled by default for
1363 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
1366 As binary polynomials are represented as BIGNUMs, various members
1367 of the EC_GROUP and EC_POINT data structures can be shared
1368 between the implementations for prime fields and binary fields;
1369 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
1370 are essentially identical to their ..._GFp counterparts.
1371 (For simplicity, the '..._GFp' prefix has been dropped from
1372 various internal method names.)
1374 An internal 'field_div' method (similar to 'field_mul' and
1375 'field_sqr') has been added; this is used only for binary fields.
1377 [Sheueling Chang Shantz and Douglas Stebila
1378 (Sun Microsystems Laboratories)]
1380 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
1381 through methods ('mul', 'precompute_mult').
1383 The generic implementations (now internally called 'ec_wNAF_mul'
1384 and 'ec_wNAF_precomputed_mult') remain the default if these
1385 methods are undefined.
1387 [Sheueling Chang Shantz and Douglas Stebila
1388 (Sun Microsystems Laboratories)]
1390 *) New function EC_GROUP_get_degree, which is defined through
1391 EC_METHOD. For curves over prime fields, this returns the bit
1392 length of the modulus.
1394 [Sheueling Chang Shantz and Douglas Stebila
1395 (Sun Microsystems Laboratories)]
1397 *) New functions EC_GROUP_dup, EC_POINT_dup.
1398 (These simply call ..._new and ..._copy).
1400 [Sheueling Chang Shantz and Douglas Stebila
1401 (Sun Microsystems Laboratories)]
1403 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
1404 Polynomials are represented as BIGNUMs (where the sign bit is not
1405 used) in the following functions [macros]:
1408 BN_GF2m_sub [= BN_GF2m_add]
1409 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
1410 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
1411 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
1413 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
1414 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
1415 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
1416 BN_GF2m_cmp [= BN_ucmp]
1418 (Note that only the 'mod' functions are actually for fields GF(2^m).
1419 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
1421 For some functions, an the irreducible polynomial defining a
1422 field can be given as an 'unsigned int[]' with strictly
1423 decreasing elements giving the indices of those bits that are set;
1424 i.e., p[] represents the polynomial
1425 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
1427 p[0] > p[1] > ... > p[k] = 0.
1428 This applies to the following functions:
1433 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
1434 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
1436 BN_GF2m_mod_sqrt_arr
1437 BN_GF2m_mod_solve_quad_arr
1441 Conversion can be performed by the following functions:
1446 bntest.c has additional tests for binary polynomial arithmetic.
1448 Two implementations for BN_GF2m_mod_div() are available.
1449 The default algorithm simply uses BN_GF2m_mod_inv() and
1450 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
1451 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
1452 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
1454 [Sheueling Chang Shantz and Douglas Stebila
1455 (Sun Microsystems Laboratories)]
1457 *) Add new error code 'ERR_R_DISABLED' that can be used when some
1458 functionality is disabled at compile-time.
1459 [Douglas Stebila <douglas.stebila@sun.com>]
1461 *) Change default behaviour of 'openssl asn1parse' so that more
1462 information is visible when viewing, e.g., a certificate:
1464 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
1465 mode the content of non-printable OCTET STRINGs is output in a
1466 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
1467 avoid the appearance of a printable string.
1468 [Nils Larsch <nla@trustcenter.de>]
1470 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
1472 EC_GROUP_set_asn1_flag()
1473 EC_GROUP_get_asn1_flag()
1474 EC_GROUP_set_point_conversion_form()
1475 EC_GROUP_get_point_conversion_form()
1476 These control ASN1 encoding details:
1477 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
1478 has been set to OPENSSL_EC_NAMED_CURVE.
1479 - Points are encoded in uncompressed form by default; options for
1480 asn1_for are as for point2oct, namely
1481 POINT_CONVERSION_COMPRESSED
1482 POINT_CONVERSION_UNCOMPRESSED
1483 POINT_CONVERSION_HYBRID
1485 Also add 'seed' and 'seed_len' members to EC_GROUP with access
1488 EC_GROUP_get0_seed()
1489 EC_GROUP_get_seed_len()
1490 This is used only for ASN1 purposes (so far).
1491 [Nils Larsch <nla@trustcenter.de>]
1493 *) Add 'field_type' member to EC_METHOD, which holds the NID
1494 of the appropriate field type OID. The new function
1495 EC_METHOD_get_field_type() returns this value.
1496 [Nils Larsch <nla@trustcenter.de>]
1501 EC_POINT_point2hex()
1502 EC_POINT_hex2point()
1503 providing useful interfaces to EC_POINT_point2oct() and
1504 EC_POINT_oct2point().
1505 [Nils Larsch <nla@trustcenter.de>]
1507 *) Change internals of the EC library so that the functions
1508 EC_GROUP_set_generator()
1509 EC_GROUP_get_generator()
1510 EC_GROUP_get_order()
1511 EC_GROUP_get_cofactor()
1512 are implemented directly in crypto/ec/ec_lib.c and not dispatched
1513 to methods, which would lead to unnecessary code duplication when
1514 adding different types of curves.
1515 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
1517 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
1518 arithmetic, and such that modified wNAFs are generated
1519 (which avoid length expansion in many cases).
1522 *) Add a function EC_GROUP_check_discriminant() (defined via
1523 EC_METHOD) that verifies that the curve discriminant is non-zero.
1525 Add a function EC_GROUP_check() that makes some sanity tests
1526 on a EC_GROUP, its generator and order. This includes
1527 EC_GROUP_check_discriminant().
1528 [Nils Larsch <nla@trustcenter.de>]
1530 *) Add ECDSA in new directory crypto/ecdsa/.
1532 Add applications 'openssl ecparam' and 'openssl ecdsa'
1533 (these are based on 'openssl dsaparam' and 'openssl dsa').
1535 ECDSA support is also included in various other files across the
1536 library. Most notably,
1537 - 'openssl req' now has a '-newkey ecdsa:file' option;
1538 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
1539 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
1540 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
1541 them suitable for ECDSA where domain parameters must be
1542 extracted before the specific public key;
1543 - ECDSA engine support has been added.
1544 [Nils Larsch <nla@trustcenter.de>]
1546 *) Include some named elliptic curves, and add OIDs from X9.62,
1547 SECG, and WAP/WTLS. Each curve can be obtained from the new
1549 EC_GROUP_new_by_curve_name(),
1550 and the list of available named curves can be obtained with
1551 EC_get_builtin_curves().
1552 Also add a 'curve_name' member to EC_GROUP objects, which can be
1554 EC_GROUP_set_curve_name()
1555 EC_GROUP_get_curve_name()
1556 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
1558 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
1559 was actually never needed) and in BN_mul(). The removal in BN_mul()
1560 required a small change in bn_mul_part_recursive() and the addition
1561 of the functions bn_cmp_part_words(), bn_sub_part_words() and
1562 bn_add_part_words(), which do the same thing as bn_cmp_words(),
1563 bn_sub_words() and bn_add_words() except they take arrays with
1567 Changes between 0.9.7m and 0.9.7n [xx XXX xxxx]
1569 *) In the SSL/TLS server implementation, be strict about session ID
1570 context matching (which matters if an application uses a single
1571 external cache for different purposes). Previously,
1572 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
1573 set. This did ensure strict client verification, but meant that,
1574 with applications using a single external cache for quite
1575 different requirements, clients could circumvent ciphersuite
1576 restrictions for a given session ID context by starting a session
1577 in a different context.
1580 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
1582 *) Cleanse PEM buffers before freeing them since they may contain
1584 [Benjamin Bennett <ben@psc.edu>]
1586 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1587 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1588 authentication-only ciphersuites.
1591 *) Since AES128 and AES256 share a single mask bit in the logic of
1592 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1593 kludge to work properly if AES128 is available and AES256 isn't.
1596 *) Expand security boundary to match 1.1.1 module.
1599 *) Remove redundant features: hash file source, editing of test vectors
1600 modify fipsld to use external fips_premain.c signature.
1603 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
1604 run algorithm test programs.
1607 *) Make algorithm test programs more tolerant of whitespace.
1610 *) Have SSL/TLS server implementation tolerate "mismatched" record
1611 protocol version while receiving ClientHello even if the
1612 ClientHello is fragmented. (The server can't insist on the
1613 particular protocol version it has chosen before the ServerHello
1614 message has informed the client about his choice.)
1617 *) Load error codes if they are not already present instead of using a
1618 static variable. This allows them to be cleanly unloaded and reloaded.
1621 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
1623 *) Introduce limits to prevent malicious keys being able to
1624 cause a denial of service. (CVE-2006-2940)
1625 [Steve Henson, Bodo Moeller]
1627 *) Fix ASN.1 parsing of certain invalid structures that can result
1628 in a denial of service. (CVE-2006-2937) [Steve Henson]
1630 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1631 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1633 *) Fix SSL client code which could crash if connecting to a
1634 malicious SSLv2 server. (CVE-2006-4343)
1635 [Tavis Ormandy and Will Drewry, Google Security Team]
1637 *) Change ciphersuite string processing so that an explicit
1638 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
1639 will no longer include "AES128-SHA"), and any other similar
1640 ciphersuite (same bitmap) from *other* protocol versions (so that
1641 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
1642 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
1643 changes from 0.9.8b and 0.9.8d.
1646 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
1648 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1649 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1651 *) Change the Unix randomness entropy gathering to use poll() when
1652 possible instead of select(), since the latter has some
1653 undesirable limitations.
1654 [Darryl Miles via Richard Levitte and Bodo Moeller]
1656 *) Disable rogue ciphersuites:
1658 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1659 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1660 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1662 The latter two were purportedly from
1663 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1666 Also deactive the remaining ciphersuites from
1667 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1668 unofficial, and the ID has long expired.
1671 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1672 dual-core machines) and other potential thread-safety issues.
1675 Changes between 0.9.7i and 0.9.7j [04 May 2006]
1677 *) Adapt fipsld and the build system to link against the validated FIPS
1678 module in FIPS mode.
1681 *) Fixes for VC++ 2005 build under Windows.
1684 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
1685 from a Windows bash shell such as MSYS. It is autodetected from the
1686 "config" script when run from a VC++ environment. Modify standard VC++
1687 build to use fipscanister.o from the GNU make build.
1690 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
1692 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
1693 The value now differs depending on if you build for FIPS or not.
1694 BEWARE! A program linked with a shared FIPSed libcrypto can't be
1695 safely run with a non-FIPSed libcrypto, as it may crash because of
1696 the difference induced by this change.
1699 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
1701 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1702 (part of SSL_OP_ALL). This option used to disable the
1703 countermeasure against man-in-the-middle protocol-version
1704 rollback in the SSL 2.0 server implementation, which is a bad
1705 idea. (CVE-2005-2969)
1707 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1708 for Information Security, National Institute of Advanced Industrial
1709 Science and Technology [AIST], Japan)]
1711 *) Minimal support for X9.31 signatures and PSS padding modes. This is
1712 mainly for FIPS compliance and not fully integrated at this stage.
1715 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
1716 the exponentiation using a fixed-length exponent. (Otherwise,
1717 the information leaked through timing could expose the secret key
1718 after many signatures; cf. Bleichenbacher's attack on DSA with
1722 *) Make a new fixed-window mod_exp implementation the default for
1723 RSA, DSA, and DH private-key operations so that the sequence of
1724 squares and multiplies and the memory access pattern are
1725 independent of the particular secret key. This will mitigate
1726 cache-timing and potential related attacks.
1728 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
1729 and this is automatically used by BN_mod_exp_mont() if the new flag
1730 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
1731 will use this BN flag for private exponents unless the flag
1732 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
1733 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
1735 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
1737 *) Change the client implementation for SSLv23_method() and
1738 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
1739 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
1740 (Previously, the SSL 2.0 backwards compatible Client Hello
1741 message format would be used even with SSL_OP_NO_SSLv2.)
1744 *) Add support for smime-type MIME parameter in S/MIME messages which some
1748 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
1749 a threadsafe manner. Modify rsa code to use new function and add calls
1750 to dsa and dh code (which had race conditions before).
1753 *) Include the fixed error library code in the C error file definitions
1754 instead of fixing them up at runtime. This keeps the error code
1755 structures constant.
1758 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
1760 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
1763 *) Fixes for newer kerberos headers. NB: the casts are needed because
1764 the 'length' field is signed on one version and unsigned on another
1765 with no (?) obvious way to tell the difference, without these VC++
1766 complains. Also the "definition" of FAR (blank) is no longer included
1767 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
1768 some needed definitions.
1771 *) Undo Cygwin change.
1774 *) Added support for proxy certificates according to RFC 3820.
1775 Because they may be a security thread to unaware applications,
1776 they must be explicitely allowed in run-time. See
1777 docs/HOWTO/proxy_certificates.txt for further information.
1780 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
1782 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
1783 server and client random values. Previously
1784 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
1785 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
1787 This change has negligible security impact because:
1789 1. Server and client random values still have 24 bytes of pseudo random
1792 2. Server and client random values are sent in the clear in the initial
1795 3. The master secret is derived using the premaster secret (48 bytes in
1796 size for static RSA ciphersuites) as well as client server and random
1799 The OpenSSL team would like to thank the UK NISCC for bringing this issue
1802 [Stephen Henson, reported by UK NISCC]
1804 *) Use Windows randomness collection on Cygwin.
1807 *) Fix hang in EGD/PRNGD query when communication socket is closed
1808 prematurely by EGD/PRNGD.
1809 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
1811 *) Prompt for pass phrases when appropriate for PKCS12 input format.
1814 *) Back-port of selected performance improvements from development
1815 branch, as well as improved support for PowerPC platforms.
1818 *) Add lots of checks for memory allocation failure, error codes to indicate
1819 failure and freeing up memory if a failure occurs.
1820 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
1822 *) Add new -passin argument to dgst.
1825 *) Perform some character comparisons of different types in X509_NAME_cmp:
1826 this is needed for some certificates that reencode DNs into UTF8Strings
1827 (in violation of RFC3280) and can't or wont issue name rollover
1831 *) Make an explicit check during certificate validation to see that
1832 the CA setting in each certificate on the chain is correct. As a
1833 side effect always do the following basic checks on extensions,
1834 not just when there's an associated purpose to the check:
1836 - if there is an unhandled critical extension (unless the user
1837 has chosen to ignore this fault)
1838 - if the path length has been exceeded (if one is set at all)
1839 - that certain extensions fit the associated purpose (if one has
1843 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
1845 *) Avoid a race condition when CRLs are checked in a multi threaded
1846 environment. This would happen due to the reordering of the revoked
1847 entries during signature checking and serial number lookup. Now the
1848 encoding is cached and the serial number sort performed under a lock.
1849 Add new STACK function sk_is_sorted().
1852 *) Add Delta CRL to the extension code.
1855 *) Various fixes to s3_pkt.c so alerts are sent properly.
1856 [David Holmes <d.holmes@f5.com>]
1858 *) Reduce the chances of duplicate issuer name and serial numbers (in
1859 violation of RFC3280) using the OpenSSL certificate creation utilities.
1860 This is done by creating a random 64 bit value for the initial serial
1861 number when a serial number file is created or when a self signed
1862 certificate is created using 'openssl req -x509'. The initial serial
1863 number file is created using 'openssl x509 -next_serial' in CA.pl
1864 rather than being initialized to 1.
1867 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
1869 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
1870 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
1871 [Joe Orton, Steve Henson]
1873 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
1875 [Joe Orton, Steve Henson]
1877 *) Make it possible to have multiple active certificates with the same
1878 subject in the CA index file. This is done only if the keyword
1879 'unique_subject' is set to 'no' in the main CA section (default
1880 if 'CA_default') of the configuration file. The value is saved
1881 with the database itself in a separate index attribute file,
1882 named like the index file with '.attr' appended to the name.
1885 *) X509 verify fixes. Disable broken certificate workarounds when
1886 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
1887 keyUsage extension present. Don't accept CRLs with unhandled critical
1888 extensions: since verify currently doesn't process CRL extensions this
1889 rejects a CRL with *any* critical extensions. Add new verify error codes
1893 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
1894 A clarification of RFC2560 will require the use of OCTET STRINGs and
1895 some implementations cannot handle the current raw format. Since OpenSSL
1896 copies and compares OCSP nonces as opaque blobs without any attempt at
1897 parsing them this should not create any compatibility issues.
1900 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
1901 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
1902 this HMAC (and other) operations are several times slower than OpenSSL
1906 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
1907 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1909 *) Use the correct content when signing type "other".
1912 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
1914 *) Fix various bugs revealed by running the NISCC test suite:
1916 Stop out of bounds reads in the ASN1 code when presented with
1917 invalid tags (CVE-2003-0543 and CVE-2003-0544).
1919 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
1921 If verify callback ignores invalid public key errors don't try to check
1922 certificate signature with the NULL public key.
1926 *) New -ignore_err option in ocsp application to stop the server
1927 exiting on the first error in a request.
1930 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
1931 if the server requested one: as stated in TLS 1.0 and SSL 3.0
1935 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
1936 extra data after the compression methods not only for TLS 1.0
1937 but also for SSL 3.0 (as required by the specification).
1938 [Bodo Moeller; problem pointed out by Matthias Loepfe]
1940 *) Change X509_certificate_type() to mark the key as exported/exportable
1941 when it's 512 *bits* long, not 512 bytes.
1944 *) Change AES_cbc_encrypt() so it outputs exact multiple of
1945 blocks during encryption.
1948 *) Various fixes to base64 BIO and non blocking I/O. On write
1949 flushes were not handled properly if the BIO retried. On read
1950 data was not being buffered properly and had various logic bugs.
1951 This also affects blocking I/O when the data being decoded is a
1955 *) Various S/MIME bugfixes and compatibility changes:
1956 output correct application/pkcs7 MIME type if
1957 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
1958 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
1959 of files as .eml work). Correctly handle very long lines in MIME
1963 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
1965 *) Countermeasure against the Klima-Pokorny-Rosa extension of
1966 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
1967 a protocol version number mismatch like a decryption error
1968 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
1971 *) Turn on RSA blinding by default in the default implementation
1972 to avoid a timing attack. Applications that don't want it can call
1973 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
1974 They would be ill-advised to do so in most cases.
1975 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
1977 *) Change RSA blinding code so that it works when the PRNG is not
1978 seeded (in this case, the secret RSA exponent is abused as
1979 an unpredictable seed -- if it is not unpredictable, there
1980 is no point in blinding anyway). Make RSA blinding thread-safe
1981 by remembering the creator's thread ID in rsa->blinding and
1982 having all other threads use local one-time blinding factors
1983 (this requires more computation than sharing rsa->blinding, but
1984 avoids excessive locking; and if an RSA object is not shared
1985 between threads, blinding will still be very fast).
1988 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
1989 ENGINE as defaults for all supported algorithms irrespective of
1990 the 'flags' parameter. 'flags' is now honoured, so applications
1991 should make sure they are passing it correctly.
1994 *) Target "mingw" now allows native Windows code to be generated in
1995 the Cygwin environment as well as with the MinGW compiler.
1998 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
2000 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
2001 via timing by performing a MAC computation even if incorrrect
2002 block cipher padding has been found. This is a countermeasure
2003 against active attacks where the attacker has to distinguish
2004 between bad padding and a MAC verification error. (CVE-2003-0078)
2006 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
2007 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
2008 Martin Vuagnoux (EPFL, Ilion)]
2010 *) Make the no-err option work as intended. The intention with no-err
2011 is not to have the whole error stack handling routines removed from
2012 libcrypto, it's only intended to remove all the function name and
2013 reason texts, thereby removing some of the footprint that may not
2014 be interesting if those errors aren't displayed anyway.
2016 NOTE: it's still possible for any application or module to have it's
2017 own set of error texts inserted. The routines are there, just not
2018 used by default when no-err is given.
2021 *) Add support for FreeBSD on IA64.
2022 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
2024 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
2025 Kerberos function mit_des_cbc_cksum(). Before this change,
2026 the value returned by DES_cbc_cksum() was like the one from
2027 mit_des_cbc_cksum(), except the bytes were swapped.
2028 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
2030 *) Allow an application to disable the automatic SSL chain building.
2031 Before this a rather primitive chain build was always performed in
2032 ssl3_output_cert_chain(): an application had no way to send the
2033 correct chain if the automatic operation produced an incorrect result.
2035 Now the chain builder is disabled if either:
2037 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
2039 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
2041 The reasoning behind this is that an application would not want the
2042 auto chain building to take place if extra chain certificates are
2043 present and it might also want a means of sending no additional
2044 certificates (for example the chain has two certificates and the
2048 *) Add the possibility to build without the ENGINE framework.
2049 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2051 *) Under Win32 gmtime() can return NULL: check return value in
2052 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
2055 *) DSA routines: under certain error conditions uninitialized BN objects
2056 could be freed. Solution: make sure initialization is performed early
2057 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
2058 Nils Larsch <nla@trustcenter.de> via PR#459)
2061 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
2062 checked on reconnect on the client side, therefore session resumption
2063 could still fail with a "ssl session id is different" error. This
2064 behaviour is masked when SSL_OP_ALL is used due to
2065 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
2066 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2067 followup to PR #377.
2070 *) IA-32 assembler support enhancements: unified ELF targets, support
2071 for SCO/Caldera platforms, fix for Cygwin shared build.
2074 *) Add support for FreeBSD on sparc64. As a consequence, support for
2075 FreeBSD on non-x86 processors is separate from x86 processors on
2076 the config script, much like the NetBSD support.
2077 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
2079 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
2081 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
2084 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
2085 code (06) was taken as the first octet of the session ID and the last
2086 octet was ignored consequently. As a result SSLv2 client side session
2087 caching could not have worked due to the session ID mismatch between
2089 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2093 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
2094 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
2098 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
2099 seems that in spite of existing for more than a year, many application
2100 author have done nothing to provide the necessary callbacks, which
2101 means that this particular engine will not work properly anywhere.
2102 This is a very unfortunate situation which forces us, in the name
2103 of usability, to give the hw_ncipher.c a static lock, which is part
2105 NOTE: This is for the 0.9.7 series ONLY. This hack will never
2106 appear in 0.9.8 or later. We EXPECT application authors to have
2107 dealt properly with this when 0.9.8 is released (unless we actually
2108 make such changes in the libcrypto locking code that changes will
2109 have to be made anyway).
2112 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
2113 octets have been read, EOF or an error occurs. Without this change
2114 some truncated ASN1 structures will not produce an error.
2117 *) Disable Heimdal support, since it hasn't been fully implemented.
2118 Still give the possibility to force the use of Heimdal, but with
2119 warnings and a request that patches get sent to openssl-dev.
2122 *) Add the VC-CE target, introduce the WINCE sysname, and add
2123 INSTALL.WCE and appropriate conditionals to make it build.
2124 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2126 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
2127 cygssl-x.y.z.dll, where x, y and z are the major, minor and
2128 edit numbers of the version.
2129 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
2131 *) Introduce safe string copy and catenation functions
2132 (BUF_strlcpy() and BUF_strlcat()).
2133 [Ben Laurie (CHATS) and Richard Levitte]
2135 *) Avoid using fixed-size buffers for one-line DNs.
2136 [Ben Laurie (CHATS)]
2138 *) Add BUF_MEM_grow_clean() to avoid information leakage when
2139 resizing buffers containing secrets, and use where appropriate.
2140 [Ben Laurie (CHATS)]
2142 *) Avoid using fixed size buffers for configuration file location.
2143 [Ben Laurie (CHATS)]
2145 *) Avoid filename truncation for various CA files.
2146 [Ben Laurie (CHATS)]
2148 *) Use sizeof in preference to magic numbers.
2149 [Ben Laurie (CHATS)]
2151 *) Avoid filename truncation in cert requests.
2152 [Ben Laurie (CHATS)]
2154 *) Add assertions to check for (supposedly impossible) buffer
2156 [Ben Laurie (CHATS)]
2158 *) Don't cache truncated DNS entries in the local cache (this could
2159 potentially lead to a spoofing attack).
2160 [Ben Laurie (CHATS)]
2162 *) Fix various buffers to be large enough for hex/decimal
2163 representations in a platform independent manner.
2164 [Ben Laurie (CHATS)]
2166 *) Add CRYPTO_realloc_clean() to avoid information leakage when
2167 resizing buffers containing secrets, and use where appropriate.
2168 [Ben Laurie (CHATS)]
2170 *) Add BIO_indent() to avoid much slightly worrying code to do
2172 [Ben Laurie (CHATS)]
2174 *) Convert sprintf()/BIO_puts() to BIO_printf().
2175 [Ben Laurie (CHATS)]
2177 *) buffer_gets() could terminate with the buffer only half
2179 [Ben Laurie (CHATS)]
2181 *) Add assertions to prevent user-supplied crypto functions from
2182 overflowing internal buffers by having large block sizes, etc.
2183 [Ben Laurie (CHATS)]
2185 *) New OPENSSL_assert() macro (similar to assert(), but enabled
2187 [Ben Laurie (CHATS)]
2189 *) Eliminate unused copy of key in RC4.
2190 [Ben Laurie (CHATS)]
2192 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
2193 [Ben Laurie (CHATS)]
2195 *) Fix off-by-one error in EGD path.
2196 [Ben Laurie (CHATS)]
2198 *) If RANDFILE path is too long, ignore instead of truncating.
2199 [Ben Laurie (CHATS)]
2201 *) Eliminate unused and incorrectly sized X.509 structure
2203 [Ben Laurie (CHATS)]
2205 *) Eliminate unused and dangerous function knumber().
2206 [Ben Laurie (CHATS)]
2208 *) Eliminate unused and dangerous structure, KSSL_ERR.
2209 [Ben Laurie (CHATS)]
2211 *) Protect against overlong session ID context length in an encoded
2212 session object. Since these are local, this does not appear to be
2214 [Ben Laurie (CHATS)]
2216 *) Change from security patch (see 0.9.6e below) that did not affect
2217 the 0.9.6 release series:
2219 Remote buffer overflow in SSL3 protocol - an attacker could
2220 supply an oversized master key in Kerberos-enabled versions.
2222 [Ben Laurie (CHATS)]
2224 *) Change the SSL kerb5 codes to match RFC 2712.
2227 *) Make -nameopt work fully for req and add -reqopt switch.
2228 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
2230 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
2231 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
2233 *) Make sure tests can be performed even if the corresponding algorithms
2234 have been removed entirely. This was also the last step to make
2235 OpenSSL compilable with DJGPP under all reasonable conditions.
2236 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
2238 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
2239 to allow version independent disabling of normally unselected ciphers,
2240 which may be activated as a side-effect of selecting a single cipher.
2242 (E.g., cipher list string "RSA" enables ciphersuites that are left
2243 out of "ALL" because they do not provide symmetric encryption.
2244 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
2245 [Lutz Jaenicke, Bodo Moeller]
2247 *) Add appropriate support for separate platform-dependent build
2248 directories. The recommended way to make a platform-dependent
2249 build directory is the following (tested on Linux), maybe with
2252 # Place yourself outside of the OpenSSL source tree. In
2253 # this example, the environment variable OPENSSL_SOURCE
2254 # is assumed to contain the absolute OpenSSL source directory.
2255 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
2256 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
2257 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
2258 mkdir -p `dirname $F`
2259 ln -s $OPENSSL_SOURCE/$F $F
2262 To be absolutely sure not to disturb the source tree, a "make clean"
2263 is a good thing. If it isn't successfull, don't worry about it,
2264 it probably means the source directory is very clean.
2267 *) Make sure any ENGINE control commands make local copies of string
2268 pointers passed to them whenever necessary. Otherwise it is possible
2269 the caller may have overwritten (or deallocated) the original string
2270 data when a later ENGINE operation tries to use the stored values.
2271 [Götz Babin-Ebell <babinebell@trustcenter.de>]
2273 *) Improve diagnostics in file reading and command-line digests.
2274 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
2276 *) Add AES modes CFB and OFB to the object database. Correct an
2277 error in AES-CFB decryption.
2280 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
2281 allows existing EVP_CIPHER_CTX structures to be reused after
2282 calling EVP_*Final(). This behaviour is used by encryption
2283 BIOs and some applications. This has the side effect that
2284 applications must explicitly clean up cipher contexts with
2285 EVP_CIPHER_CTX_cleanup() or they will leak memory.
2288 *) Check the values of dna and dnb in bn_mul_recursive before calling
2289 bn_mul_comba (a non zero value means the a or b arrays do not contain
2290 n2 elements) and fallback to bn_mul_normal if either is not zero.
2293 *) Fix escaping of non-ASCII characters when using the -subj option
2294 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
2297 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
2298 form for "surname", serialNumber has no short form.
2299 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
2300 therefore remove "mail" short name for "internet 7".
2301 The OID for unique identifiers in X509 certificates is
2302 x500UniqueIdentifier, not uniqueIdentifier.
2303 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
2306 *) Add an "init" command to the ENGINE config module and auto initialize
2307 ENGINEs. Without any "init" command the ENGINE will be initialized
2308 after all ctrl commands have been executed on it. If init=1 the
2309 ENGINE is initailized at that point (ctrls before that point are run
2310 on the uninitialized ENGINE and after on the initialized one). If
2311 init=0 then the ENGINE will not be iniatialized at all.
2314 *) Fix the 'app_verify_callback' interface so that the user-defined
2315 argument is actually passed to the callback: In the
2316 SSL_CTX_set_cert_verify_callback() prototype, the callback
2317 declaration has been changed from
2320 int (*cb)(X509_STORE_CTX *,void *);
2321 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
2322 i=s->ctx->app_verify_callback(&ctx)
2323 has been changed into
2324 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
2326 To update applications using SSL_CTX_set_cert_verify_callback(),
2327 a dummy argument can be added to their callback functions.
2328 [D. K. Smetters <smetters@parc.xerox.com>]
2330 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
2331 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
2333 *) Add and OPENSSL_LOAD_CONF define which will cause
2334 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
2335 This allows older applications to transparently support certain
2336 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
2337 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
2338 load the config file and OPENSSL_add_all_algorithms_conf() which will
2339 always load it have also been added.
2342 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
2343 Adjust NIDs and EVP layer.
2344 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2346 *) Config modules support in openssl utility.
2348 Most commands now load modules from the config file,
2349 though in a few (such as version) this isn't done
2350 because it couldn't be used for anything.
2352 In the case of ca and req the config file used is
2353 the same as the utility itself: that is the -config
2354 command line option can be used to specify an
2358 *) Move default behaviour from OPENSSL_config(). If appname is NULL
2359 use "openssl_conf" if filename is NULL use default openssl config file.
2362 *) Add an argument to OPENSSL_config() to allow the use of an alternative
2363 config section name. Add a new flag to tolerate a missing config file
2364 and move code to CONF_modules_load_file().
2367 *) Support for crypto accelerator cards from Accelerated Encryption
2368 Processing, www.aep.ie. (Use engine 'aep')
2369 The support was copied from 0.9.6c [engine] and adapted/corrected
2370 to work with the new engine framework.
2371 [AEP Inc. and Richard Levitte]
2373 *) Support for SureWare crypto accelerator cards from Baltimore
2374 Technologies. (Use engine 'sureware')
2375 The support was copied from 0.9.6c [engine] and adapted
2376 to work with the new engine framework.
2379 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
2380 make the newer ENGINE framework commands for the CHIL engine work.
2381 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
2383 *) Make it possible to produce shared libraries on ReliantUNIX.
2384 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
2386 *) Add the configuration target debug-linux-ppro.
2387 Make 'openssl rsa' use the general key loading routines
2388 implemented in apps.c, and make those routines able to
2389 handle the key format FORMAT_NETSCAPE and the variant
2391 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2393 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
2394 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2396 *) Add -keyform to rsautl, and document -engine.
2397 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
2399 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
2400 BIO_R_NO_SUCH_FILE error code rather than the generic
2401 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
2404 *) Add new functions
2406 ERR_peek_last_error_line
2407 ERR_peek_last_error_line_data.
2408 These are similar to
2411 ERR_peek_error_line_data,
2412 but report on the latest error recorded rather than the first one
2413 still in the error queue.
2414 [Ben Laurie, Bodo Moeller]
2416 *) default_algorithms option in ENGINE config module. This allows things
2418 default_algorithms = ALL
2419 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
2422 *) Prelminary ENGINE config module.
2425 *) New experimental application configuration code.
2428 *) Change the AES code to follow the same name structure as all other
2429 symmetric ciphers, and behave the same way. Move everything to
2430 the directory crypto/aes, thereby obsoleting crypto/rijndael.
2431 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2433 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
2434 [Ben Laurie and Theo de Raadt]
2436 *) Add option to output public keys in req command.
2437 [Massimiliano Pala madwolf@openca.org]
2439 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
2440 (up to about 10% better than before for P-192 and P-224).
2443 *) New functions/macros
2445 SSL_CTX_set_msg_callback(ctx, cb)
2446 SSL_CTX_set_msg_callback_arg(ctx, arg)
2447 SSL_set_msg_callback(ssl, cb)
2448 SSL_set_msg_callback_arg(ssl, arg)
2450 to request calling a callback function
2452 void cb(int write_p, int version, int content_type,
2453 const void *buf, size_t len, SSL *ssl, void *arg)
2455 whenever a protocol message has been completely received
2456 (write_p == 0) or sent (write_p == 1). Here 'version' is the
2457 protocol version according to which the SSL library interprets
2458 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
2459 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
2460 the content type as defined in the SSL 3.0/TLS 1.0 protocol
2461 specification (change_cipher_spec(20), alert(21), handshake(22)).
2462 'buf' and 'len' point to the actual message, 'ssl' to the
2463 SSL object, and 'arg' is the application-defined value set by
2464 SSL[_CTX]_set_msg_callback_arg().
2466 'openssl s_client' and 'openssl s_server' have new '-msg' options
2467 to enable a callback that displays all protocol messages.
2470 *) Change the shared library support so shared libraries are built as
2471 soon as the corresponding static library is finished, and thereby get
2472 openssl and the test programs linked against the shared library.
2473 This still only happens when the keyword "shard" has been given to
2474 the configuration scripts.
2476 NOTE: shared library support is still an experimental thing, and
2477 backward binary compatibility is still not guaranteed.
2478 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
2480 *) Add support for Subject Information Access extension.
2481 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2483 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
2484 additional bytes when new memory had to be allocated, not just
2485 when reusing an existing buffer.
2488 *) New command line and configuration option 'utf8' for the req command.
2489 This allows field values to be specified as UTF8 strings.
2492 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
2493 runs for the former and machine-readable output for the latter.
2496 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
2497 of the e-mail address in the DN (i.e., it will go into a certificate
2498 extension only). The new configuration file option 'email_in_dn = no'
2499 has the same effect.
2500 [Massimiliano Pala madwolf@openca.org]
2502 *) Change all functions with names starting with des_ to be starting
2503 with DES_ instead. Add wrappers that are compatible with libdes,
2504 but are named _ossl_old_des_*. Finally, add macros that map the
2505 des_* symbols to the corresponding _ossl_old_des_* if libdes
2506 compatibility is desired. If OpenSSL 0.9.6c compatibility is
2507 desired, the des_* symbols will be mapped to DES_*, with one
2510 Since we provide two compatibility mappings, the user needs to
2511 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
2512 compatibility is desired. The default (i.e., when that macro
2513 isn't defined) is OpenSSL 0.9.6c compatibility.
2515 There are also macros that enable and disable the support of old
2516 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
2517 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
2518 are defined, the default will apply: to support the old des routines.
2520 In either case, one must include openssl/des.h to get the correct
2521 definitions. Do not try to just include openssl/des_old.h, that
2524 NOTE: This is a major break of an old API into a new one. Software
2525 authors are encouraged to switch to the DES_ style functions. Some
2526 time in the future, des_old.h and the libdes compatibility functions
2527 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
2528 default), and then completely removed.
2531 *) Test for certificates which contain unsupported critical extensions.
2532 If such a certificate is found during a verify operation it is
2533 rejected by default: this behaviour can be overridden by either
2534 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
2535 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
2536 X509_supported_extension() has also been added which returns 1 if a
2537 particular extension is supported.
2540 *) Modify the behaviour of EVP cipher functions in similar way to digests
2541 to retain compatibility with existing code.
2544 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
2545 compatibility with existing code. In particular the 'ctx' parameter does
2546 not have to be to be initialized before the call to EVP_DigestInit() and
2547 it is tidied up after a call to EVP_DigestFinal(). New function
2548 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
2549 EVP_MD_CTX_copy() changed to not require the destination to be
2550 initialized valid and new function EVP_MD_CTX_copy_ex() added which
2551 requires the destination to be valid.
2553 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
2554 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
2557 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
2558 so that complete 'Handshake' protocol structures are kept in memory
2559 instead of overwriting 'msg_type' and 'length' with 'body' data.
2562 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
2563 [Massimo Santin via Richard Levitte]
2565 *) Major restructuring to the underlying ENGINE code. This includes
2566 reduction of linker bloat, separation of pure "ENGINE" manipulation
2567 (initialisation, etc) from functionality dealing with implementations
2568 of specific crypto iterfaces. This change also introduces integrated
2569 support for symmetric ciphers and digest implementations - so ENGINEs
2570 can now accelerate these by providing EVP_CIPHER and EVP_MD
2571 implementations of their own. This is detailed in crypto/engine/README
2572 as it couldn't be adequately described here. However, there are a few
2573 API changes worth noting - some RSA, DSA, DH, and RAND functions that
2574 were changed in the original introduction of ENGINE code have now
2575 reverted back - the hooking from this code to ENGINE is now a good
2576 deal more passive and at run-time, operations deal directly with
2577 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
2578 dereferencing through an ENGINE pointer any more. Also, the ENGINE
2579 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
2580 they were not being used by the framework as there is no concept of a
2581 BIGNUM_METHOD and they could not be generalised to the new
2582 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
2583 ENGINE_cpy() has been removed as it cannot be consistently defined in
2587 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
2590 *) Change mkdef.pl to sort symbols that get the same entry number,
2591 and make sure the automatically generated functions ERR_load_*
2592 become part of libeay.num as well.
2595 *) New function SSL_renegotiate_pending(). This returns true once
2596 renegotiation has been requested (either SSL_renegotiate() call
2597 or HelloRequest/ClientHello receveived from the peer) and becomes
2598 false once a handshake has been completed.
2599 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
2600 sends a HelloRequest, but does not ensure that a handshake takes
2601 place. SSL_renegotiate_pending() is useful for checking if the
2602 client has followed the request.)
2605 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
2606 By default, clients may request session resumption even during
2607 renegotiation (if session ID contexts permit); with this option,
2608 session resumption is possible only in the first handshake.
2610 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
2611 more bits available for options that should not be part of
2612 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
2615 *) Add some demos for certificate and certificate request creation.
2618 *) Make maximum certificate chain size accepted from the peer application
2619 settable (SSL*_get/set_max_cert_list()), as proposed by
2620 "Douglas E. Engert" <deengert@anl.gov>.
2623 *) Add support for shared libraries for Unixware-7
2624 (Boyd Lynn Gerber <gerberb@zenez.com>).
2627 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
2628 be done prior to destruction. Use this to unload error strings from
2629 ENGINEs that load their own error strings. NB: This adds two new API
2630 functions to "get" and "set" this destroy handler in an ENGINE.
2633 *) Alter all existing ENGINE implementations (except "openssl" and
2634 "openbsd") to dynamically instantiate their own error strings. This
2635 makes them more flexible to be built both as statically-linked ENGINEs
2636 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
2637 Also, add stub code to each that makes building them as self-contained
2638 shared-libraries easier (see README.ENGINE).
2641 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
2642 implementations into applications that are completely implemented in
2643 self-contained shared-libraries. The "dynamic" ENGINE exposes control
2644 commands that can be used to configure what shared-library to load and
2645 to control aspects of the way it is handled. Also, made an update to
2646 the README.ENGINE file that brings its information up-to-date and
2647 provides some information and instructions on the "dynamic" ENGINE
2648 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
2651 *) Make it possible to unload ranges of ERR strings with a new
2652 "ERR_unload_strings" function.
2655 *) Add a copy() function to EVP_MD.
2658 *) Make EVP_MD routines take a context pointer instead of just the
2659 md_data void pointer.
2662 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
2663 that the digest can only process a single chunk of data
2664 (typically because it is provided by a piece of
2665 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
2666 is only going to provide a single chunk of data, and hence the
2667 framework needn't accumulate the data for oneshot drivers.
2670 *) As with "ERR", make it possible to replace the underlying "ex_data"
2671 functions. This change also alters the storage and management of global
2672 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
2673 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
2674 index counters. The API functions that use this state have been changed
2675 to take a "class_index" rather than pointers to the class's local STACK
2676 and counter, and there is now an API function to dynamically create new
2677 classes. This centralisation allows us to (a) plug a lot of the
2678 thread-safety problems that existed, and (b) makes it possible to clean
2679 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
2680 such data would previously have always leaked in application code and
2681 workarounds were in place to make the memory debugging turn a blind eye
2682 to it. Application code that doesn't use this new function will still
2683 leak as before, but their memory debugging output will announce it now
2684 rather than letting it slide.
2686 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
2687 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
2688 has a return value to indicate success or failure.
2691 *) Make it possible to replace the underlying "ERR" functions such that the
2692 global state (2 LHASH tables and 2 locks) is only used by the "default"
2693 implementation. This change also adds two functions to "get" and "set"
2694 the implementation prior to it being automatically set the first time
2695 any other ERR function takes place. Ie. an application can call "get",
2696 pass the return value to a module it has just loaded, and that module
2697 can call its own "set" function using that value. This means the
2698 module's "ERR" operations will use (and modify) the error state in the
2699 application and not in its own statically linked copy of OpenSSL code.
2702 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
2703 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
2704 the operation, and provides a more encapsulated way for external code
2705 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
2706 to use these functions rather than manually incrementing the counts.
2708 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
2711 *) Add EVP test program.
2714 *) Add symmetric cipher support to ENGINE. Expect the API to change!
2717 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
2718 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
2719 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
2720 These allow a CRL to be built without having to access X509_CRL fields
2721 directly. Modify 'ca' application to use new functions.
2724 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
2725 bug workarounds. Rollback attack detection is a security feature.
2726 The problem will only arise on OpenSSL servers when TLSv1 is not
2727 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
2728 Software authors not wanting to support TLSv1 will have special reasons
2729 for their choice and can explicitly enable this option.
2730 [Bodo Moeller, Lutz Jaenicke]
2732 *) Rationalise EVP so it can be extended: don't include a union of
2733 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
2734 (similar to those existing for EVP_CIPHER_CTX).
2739 EVP_MD_CTX_init(&md); /* new function call */
2740 EVP_DigestInit(&md, EVP_sha1());
2741 EVP_DigestUpdate(&md, in, len);
2742 EVP_DigestFinal(&md, out, NULL);
2743 EVP_MD_CTX_cleanup(&md); /* new function call */
2747 *) Make DES key schedule conform to the usual scheme, as well as
2748 correcting its structure. This means that calls to DES functions
2749 now have to pass a pointer to a des_key_schedule instead of a
2750 plain des_key_schedule (which was actually always a pointer
2753 des_key_schedule ks;
2755 des_set_key_checked(..., &ks);
2756 des_ncbc_encrypt(..., &ks, ...);
2758 (Note that a later change renames 'des_...' into 'DES_...'.)
2761 *) Initial reduction of linker bloat: the use of some functions, such as
2762 PEM causes large amounts of unused functions to be linked in due to
2763 poor organisation. For example pem_all.c contains every PEM function
2764 which has a knock on effect of linking in large amounts of (unused)
2765 ASN1 code. Grouping together similar functions and splitting unrelated
2766 functions prevents this.
2769 *) Cleanup of EVP macros.
2772 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
2773 correct _ecb suffix.
2776 *) Add initial OCSP responder support to ocsp application. The
2777 revocation information is handled using the text based index
2778 use by the ca application. The responder can either handle
2779 requests generated internally, supplied in files (for example
2780 via a CGI script) or using an internal minimal server.
2783 *) Add configuration choices to get zlib compression for TLS.
2786 *) Changes to Kerberos SSL for RFC 2712 compliance:
2787 1. Implemented real KerberosWrapper, instead of just using
2788 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
2789 2. Implemented optional authenticator field of KerberosWrapper.
2791 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
2792 and authenticator structs; see crypto/krb5/.
2794 Generalized Kerberos calls to support multiple Kerberos libraries.
2795 [Vern Staats <staatsvr@asc.hpc.mil>,
2796 Jeffrey Altman <jaltman@columbia.edu>
2797 via Richard Levitte]
2799 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
2800 already does with RSA. testdsa.h now has 'priv_key/pub_key'
2801 values for each of the key sizes rather than having just
2802 parameters (and 'speed' generating keys each time).
2805 *) Speed up EVP routines.
2808 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
2809 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
2810 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
2811 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
2813 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
2814 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
2815 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
2818 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
2820 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
2823 *) Added the OS2-EMX target.
2824 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
2826 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
2827 to support NCONF routines in extension code. New function CONF_set_nconf()
2828 to allow functions which take an NCONF to also handle the old LHASH
2829 structure: this means that the old CONF compatible routines can be
2830 retained (in particular wrt extensions) without having to duplicate the
2831 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
2834 *) Enhance the general user interface with mechanisms for inner control
2835 and with possibilities to have yes/no kind of prompts.
2838 *) Change all calls to low level digest routines in the library and
2839 applications to use EVP. Add missing calls to HMAC_cleanup() and
2840 don't assume HMAC_CTX can be copied using memcpy().
2841 [Verdon Walker <VWalker@novell.com>, Steve Henson]
2843 *) Add the possibility to control engines through control names but with
2844 arbitrary arguments instead of just a string.
2845 Change the key loaders to take a UI_METHOD instead of a callback
2846 function pointer. NOTE: this breaks binary compatibility with earlier
2847 versions of OpenSSL [engine].
2848 Adapt the nCipher code for these new conditions and add a card insertion
2852 *) Enhance the general user interface with mechanisms to better support
2853 dialog box interfaces, application-defined prompts, the possibility
2854 to use defaults (for example default passwords from somewhere else)
2855 and interrupts/cancellations.
2858 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
2859 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
2862 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
2863 tidy up some unnecessarily weird code in 'sk_new()').
2864 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
2866 *) Change the key loading routines for ENGINEs to use the same kind
2867 callback (pem_password_cb) as all other routines that need this
2871 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
2872 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
2873 than this minimum value is recommended.
2876 *) New random seeder for OpenVMS, using the system process statistics
2877 that are easily reachable.
2880 *) Windows apparently can't transparently handle global
2881 variables defined in DLLs. Initialisations such as:
2883 const ASN1_ITEM *it = &ASN1_INTEGER_it;
2885 wont compile. This is used by the any applications that need to
2886 declare their own ASN1 modules. This was fixed by adding the option
2887 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
2888 needed for static libraries under Win32.
2891 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
2892 setting of purpose and trust fields. New X509_STORE trust and
2893 purpose functions and tidy up setting in other SSL functions.
2896 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
2897 structure. These are inherited by X509_STORE_CTX when it is
2898 initialised. This allows various defaults to be set in the
2899 X509_STORE structure (such as flags for CRL checking and custom
2900 purpose or trust settings) for functions which only use X509_STORE_CTX
2901 internally such as S/MIME.
2903 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
2904 trust settings if they are not set in X509_STORE. This allows X509_STORE
2905 purposes and trust (in S/MIME for example) to override any set by default.
2907 Add command line options for CRL checking to smime, s_client and s_server
2911 *) Initial CRL based revocation checking. If the CRL checking flag(s)
2912 are set then the CRL is looked up in the X509_STORE structure and
2913 its validity and signature checked, then if the certificate is found
2914 in the CRL the verify fails with a revoked error.
2916 Various new CRL related callbacks added to X509_STORE_CTX structure.
2918 Command line options added to 'verify' application to support this.
2920 This needs some additional work, such as being able to handle multiple
2921 CRLs with different times, extension based lookup (rather than just
2922 by subject name) and ultimately more complete V2 CRL extension
2926 *) Add a general user interface API (crypto/ui/). This is designed
2927 to replace things like des_read_password and friends (backward
2928 compatibility functions using this new API are provided).
2929 The purpose is to remove prompting functions from the DES code
2930 section as well as provide for prompting through dialog boxes in
2931 a window system and the like.
2934 *) Add "ex_data" support to ENGINE so implementations can add state at a
2935 per-structure level rather than having to store it globally.
2938 *) Make it possible for ENGINE structures to be copied when retrieved by
2939 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
2940 This causes the "original" ENGINE structure to act like a template,
2941 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
2942 operational state can be localised to each ENGINE structure, despite the
2943 fact they all share the same "methods". New ENGINE structures returned in
2944 this case have no functional references and the return value is the single
2945 structural reference. This matches the single structural reference returned
2946 by ENGINE_by_id() normally, when it is incremented on the pre-existing
2950 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
2951 needs to match any other type at all we need to manually clear the
2955 *) Changes to the "openssl engine" utility to include;
2956 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
2957 about an ENGINE's available control commands.
2958 - executing control commands from command line arguments using the
2959 '-pre' and '-post' switches. '-post' is only used if '-t' is
2960 specified and the ENGINE is successfully initialised. The syntax for
2961 the individual commands are colon-separated, for example;
2962 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
2965 *) New dynamic control command support for ENGINEs. ENGINEs can now
2966 declare their own commands (numbers), names (strings), descriptions,
2967 and input types for run-time discovery by calling applications. A
2968 subset of these commands are implicitly classed as "executable"
2969 depending on their input type, and only these can be invoked through
2970 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
2971 can be based on user input, config files, etc). The distinction is
2972 that "executable" commands cannot return anything other than a boolean
2973 result and can only support numeric or string input, whereas some
2974 discoverable commands may only be for direct use through
2975 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
2976 pointers, or other custom uses. The "executable" commands are to
2977 support parameterisations of ENGINE behaviour that can be
2978 unambiguously defined by ENGINEs and used consistently across any
2979 OpenSSL-based application. Commands have been added to all the
2980 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
2981 control over shared-library paths without source code alterations.
2984 *) Changed all ENGINE implementations to dynamically allocate their
2985 ENGINEs rather than declaring them statically. Apart from this being
2986 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
2987 this also allows the implementations to compile without using the
2988 internal engine_int.h header.
2991 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
2992 'const' value. Any code that should be able to modify a RAND_METHOD
2993 should already have non-const pointers to it (ie. they should only
2994 modify their own ones).
2997 *) Made a variety of little tweaks to the ENGINE code.
2998 - "atalla" and "ubsec" string definitions were moved from header files
2999 to C code. "nuron" string definitions were placed in variables
3000 rather than hard-coded - allowing parameterisation of these values
3001 later on via ctrl() commands.
3002 - Removed unused "#if 0"'d code.
3003 - Fixed engine list iteration code so it uses ENGINE_free() to release
3004 structural references.
3005 - Constified the RAND_METHOD element of ENGINE structures.
3006 - Constified various get/set functions as appropriate and added
3007 missing functions (including a catch-all ENGINE_cpy that duplicates
3008 all ENGINE values onto a new ENGINE except reference counts/state).
3009 - Removed NULL parameter checks in get/set functions. Setting a method
3010 or function to NULL is a way of cancelling out a previously set
3011 value. Passing a NULL ENGINE parameter is just plain stupid anyway
3012 and doesn't justify the extra error symbols and code.
3013 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
3014 flags from engine_int.h to engine.h.
3015 - Changed prototypes for ENGINE handler functions (init(), finish(),
3016 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
3019 *) Implement binary inversion algorithm for BN_mod_inverse in addition
3020 to the algorithm using long division. The binary algorithm can be
3021 used only if the modulus is odd. On 32-bit systems, it is faster
3022 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
3023 roughly 5-15% for 256-bit moduli), so we use it only for moduli
3024 up to 450 bits. In 64-bit environments, the binary algorithm
3025 appears to be advantageous for much longer moduli; here we use it
3026 for moduli up to 2048 bits.
3029 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
3030 could not support the combine flag in choice fields.
3033 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
3034 extensions from a certificate request to the certificate.
3037 *) Allow multiple 'certopt' and 'nameopt' options to be separated
3038 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
3039 file: this allows the display of the certificate about to be
3040 signed to be customised, to allow certain fields to be included
3041 or excluded and extension details. The old system didn't display
3042 multicharacter strings properly, omitted fields not in the policy
3043 and couldn't display additional details such as extensions.
3046 *) Function EC_POINTs_mul for multiple scalar multiplication
3047 of an arbitrary number of elliptic curve points
3048 \sum scalars[i]*points[i],
3049 optionally including the generator defined for the EC_GROUP:
3050 scalar*generator + \sum scalars[i]*points[i].
3052 EC_POINT_mul is a simple wrapper function for the typical case
3053 that the point list has just one item (besides the optional
3057 *) First EC_METHODs for curves over GF(p):
3059 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
3060 operations and provides various method functions that can also
3061 operate with faster implementations of modular arithmetic.
3063 EC_GFp_mont_method() reuses most functions that are part of
3064 EC_GFp_simple_method, but uses Montgomery arithmetic.
3066 [Bodo Moeller; point addition and point doubling
3067 implementation directly derived from source code provided by
3068 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
3070 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
3071 crypto/ec/ec_lib.c):
3073 Curves are EC_GROUP objects (with an optional group generator)
3074 based on EC_METHODs that are built into the library.
3076 Points are EC_POINT objects based on EC_GROUP objects.
3078 Most of the framework would be able to handle curves over arbitrary
3079 finite fields, but as there are no obvious types for fields other
3080 than GF(p), some functions are limited to that for now.
3083 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
3084 that the file contains a complete HTTP response.
3087 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
3088 change the def and num file printf format specifier from "%-40sXXX"
3089 to "%-39s XXX". The latter will always guarantee a space after the
3090 field while the former will cause them to run together if the field
3091 is 40 of more characters long.
3094 *) Constify the cipher and digest 'method' functions and structures
3095 and modify related functions to take constant EVP_MD and EVP_CIPHER
3099 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
3100 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
3103 *) Modify EVP_Digest*() routines so they now return values. Although the
3104 internal software routines can never fail additional hardware versions
3108 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
3110 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
3111 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
3114 ERR_R_NESTED_ASN1_ERROR
3116 ERR_R_MISSING_ASN1_EOS
3117 were 4 .. 9, conflicting with
3118 ERR_LIB_RSA (= ERR_R_RSA_LIB)
3120 ERR_LIB_PEM (= ERR_R_PEM_LIB).
3121 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
3123 Add new error code 'ERR_R_INTERNAL_ERROR'.
3126 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
3130 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
3131 sets the subject name for a new request or supersedes the
3132 subject name in a given request. Formats that can be parsed are
3133 'CN=Some Name, OU=myOU, C=IT'
3135 'CN=Some Name/OU=myOU/C=IT'.
3137 Add options '-batch' and '-verbose' to 'openssl req'.
3138 [Massimiliano Pala <madwolf@hackmasters.net>]
3140 *) Introduce the possibility to access global variables through
3141 functions on platform were that's the best way to handle exporting
3142 global variables in shared libraries. To enable this functionality,
3143 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
3144 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
3145 is normally done by Configure or something similar).
3147 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
3148 in the source file (foo.c) like this:
3150 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
3151 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
3153 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
3154 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
3156 OPENSSL_DECLARE_GLOBAL(int,foo);
3157 #define foo OPENSSL_GLOBAL_REF(foo)
3158 OPENSSL_DECLARE_GLOBAL(double,bar);
3159 #define bar OPENSSL_GLOBAL_REF(bar)
3161 The #defines are very important, and therefore so is including the
3162 header file everywhere where the defined globals are used.
3164 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
3165 of ASN.1 items, but that structure is a bit different.
3167 The largest change is in util/mkdef.pl which has been enhanced with
3168 better and easier to understand logic to choose which symbols should
3169 go into the Windows .def files as well as a number of fixes and code
3170 cleanup (among others, algorithm keywords are now sorted
3171 lexicographically to avoid constant rewrites).
3174 *) In BN_div() keep a copy of the sign of 'num' before writing the
3175 result to 'rm' because if rm==num the value will be overwritten
3176 and produce the wrong result if 'num' is negative: this caused
3177 problems with BN_mod() and BN_nnmod().
3180 *) Function OCSP_request_verify(). This checks the signature on an
3181 OCSP request and verifies the signer certificate. The signer
3182 certificate is just checked for a generic purpose and OCSP request
3186 *) Add OCSP_check_validity() function to check the validity of OCSP
3187 responses. OCSP responses are prepared in real time and may only
3188 be a few seconds old. Simply checking that the current time lies
3189 between thisUpdate and nextUpdate max reject otherwise valid responses
3190 caused by either OCSP responder or client clock inaccuracy. Instead
3191 we allow thisUpdate and nextUpdate to fall within a certain period of
3192 the current time. The age of the response can also optionally be
3193 checked. Two new options -validity_period and -status_age added to
3197 *) If signature or public key algorithm is unrecognized print out its
3198 OID rather that just UNKNOWN.
3201 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
3202 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
3203 ID to be generated from the issuer certificate alone which can then be
3204 passed to OCSP_id_issuer_cmp().
3207 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
3208 ASN1 modules to export functions returning ASN1_ITEM pointers
3209 instead of the ASN1_ITEM structures themselves. This adds several
3210 new macros which allow the underlying ASN1 function/structure to
3211 be accessed transparently. As a result code should not use ASN1_ITEM
3212 references directly (such as &X509_it) but instead use the relevant
3213 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
3214 use of the new ASN1 code on platforms where exporting structures
3215 is problematical (for example in shared libraries) but exporting
3216 functions returning pointers to structures is not.
3219 *) Add support for overriding the generation of SSL/TLS session IDs.
3220 These callbacks can be registered either in an SSL_CTX or per SSL.
3221 The purpose of this is to allow applications to control, if they wish,
3222 the arbitrary values chosen for use as session IDs, particularly as it
3223 can be useful for session caching in multiple-server environments. A
3224 command-line switch for testing this (and any client code that wishes
3225 to use such a feature) has been added to "s_server".
3226 [Geoff Thorpe, Lutz Jaenicke]
3228 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
3229 of the form '#if defined(...) || defined(...) || ...' and
3230 '#if !defined(...) && !defined(...) && ...'. This also avoids
3231 the growing number of special cases it was previously handling.
3234 *) Make all configuration macros available for application by making
3235 sure they are available in opensslconf.h, by giving them names starting
3236 with "OPENSSL_" to avoid conflicts with other packages and by making
3237 sure e_os2.h will cover all platform-specific cases together with
3239 Additionally, it is now possible to define configuration/platform-
3240 specific names (called "system identities"). In the C code, these
3241 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
3242 macro with the name beginning with "OPENSSL_SYS_", which is determined
3243 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
3247 *) New option -set_serial to 'req' and 'x509' this allows the serial
3248 number to use to be specified on the command line. Previously self
3249 signed certificates were hard coded with serial number 0 and the
3250 CA options of 'x509' had to use a serial number in a file which was
3254 *) New options to 'ca' utility to support V2 CRL entry extensions.
3255 Currently CRL reason, invalidity date and hold instruction are
3256 supported. Add new CRL extensions to V3 code and some new objects.
3259 *) New function EVP_CIPHER_CTX_set_padding() this is used to
3260 disable standard block padding (aka PKCS#5 padding) in the EVP
3261 API, which was previously mandatory. This means that the data is
3262 not padded in any way and so the total length much be a multiple
3263 of the block size, otherwise an error occurs.
3266 *) Initial (incomplete) OCSP SSL support.
3269 *) New function OCSP_parse_url(). This splits up a URL into its host,
3270 port and path components: primarily to parse OCSP URLs. New -url
3271 option to ocsp utility.
3274 *) New nonce behavior. The return value of OCSP_check_nonce() now
3275 reflects the various checks performed. Applications can decide
3276 whether to tolerate certain situations such as an absent nonce
3277 in a response when one was present in a request: the ocsp application
3278 just prints out a warning. New function OCSP_add1_basic_nonce()
3279 this is to allow responders to include a nonce in a response even if
3280 the request is nonce-less.
3283 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
3284 skipped when using openssl x509 multiple times on a single input file,
3285 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
3288 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
3289 set string type: to handle setting ASN1_TIME structures. Fix ca
3290 utility to correctly initialize revocation date of CRLs.
3293 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
3294 the clients preferred ciphersuites and rather use its own preferences.
3295 Should help to work around M$ SGC (Server Gated Cryptography) bug in
3296 Internet Explorer by ensuring unchanged hash method during stepup.
3297 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
3300 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
3301 to aes and add a new 'exist' option to print out symbols that don't
3305 *) Additional options to ocsp utility to allow flags to be set and
3306 additional certificates supplied.
3309 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
3310 OCSP client a number of certificate to only verify the response
3314 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
3315 handle the new API. Currently only ECB, CBC modes supported. Add new
3318 Add TLS AES ciphersuites as described in RFC3268, "Advanced
3319 Encryption Standard (AES) Ciphersuites for Transport Layer
3320 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
3321 not enabled by default and were not part of the "ALL" ciphersuite
3322 alias because they were not yet official; they could be
3323 explicitly requested by specifying the "AESdraft" ciphersuite
3324 group alias. In the final release of OpenSSL 0.9.7, the group
3325 alias is called "AES" and is part of "ALL".)
3326 [Ben Laurie, Steve Henson, Bodo Moeller]
3328 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
3329 request to response.
3332 *) Functions for OCSP responders. OCSP_request_onereq_count(),
3333 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
3334 extract information from a certificate request. OCSP_response_create()
3335 creates a response and optionally adds a basic response structure.
3336 OCSP_basic_add1_status() adds a complete single response to a basic
3337 response and returns the OCSP_SINGLERESP structure just added (to allow
3338 extensions to be included for example). OCSP_basic_add1_cert() adds a
3339 certificate to a basic response and OCSP_basic_sign() signs a basic
3340 response with various flags. New helper functions ASN1_TIME_check()
3341 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
3342 (converts ASN1_TIME to GeneralizedTime).
3345 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
3346 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
3347 structure from a certificate. X509_pubkey_digest() digests the public_key
3348 contents: this is used in various key identifiers.
3351 *) Make sk_sort() tolerate a NULL argument.
3352 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
3354 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
3355 passed by the function are trusted implicitly. If any of them signed the
3356 response then it is assumed to be valid and is not verified.
3359 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
3360 to data. This was previously part of the PKCS7 ASN1 code. This
3361 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
3362 [Steve Henson, reported by Kenneth R. Robinette
3363 <support@securenetterm.com>]
3365 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
3366 routines: without these tracing memory leaks is very painful.
3367 Fix leaks in PKCS12 and PKCS7 routines.
3370 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
3371 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
3372 effectively meant GeneralizedTime would never be used. Now it
3373 is initialised to -1 but X509_time_adj() now has to check the value
3374 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
3375 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
3376 [Steve Henson, reported by Kenneth R. Robinette
3377 <support@securenetterm.com>]
3379 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
3380 result in a zero length in the ASN1_INTEGER structure which was
3381 not consistent with the structure when d2i_ASN1_INTEGER() was used
3382 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
3383 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
3384 where it did not print out a minus for negative ASN1_INTEGER.
3387 *) Add summary printout to ocsp utility. The various functions which
3388 convert status values to strings have been renamed to:
3389 OCSP_response_status_str(), OCSP_cert_status_str() and
3390 OCSP_crl_reason_str() and are no longer static. New options
3391 to verify nonce values and to disable verification. OCSP response
3392 printout format cleaned up.
3395 *) Add additional OCSP certificate checks. These are those specified
3396 in RFC2560. This consists of two separate checks: the CA of the
3397 certificate being checked must either be the OCSP signer certificate
3398 or the issuer of the OCSP signer certificate. In the latter case the
3399 OCSP signer certificate must contain the OCSP signing extended key
3400 usage. This check is performed by attempting to match the OCSP
3401 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
3402 in the OCSP_CERTID structures of the response.
3405 *) Initial OCSP certificate verification added to OCSP_basic_verify()
3406 and related routines. This uses the standard OpenSSL certificate
3407 verify routines to perform initial checks (just CA validity) and
3408 to obtain the certificate chain. Then additional checks will be
3409 performed on the chain. Currently the root CA is checked to see
3410 if it is explicitly trusted for OCSP signing. This is used to set
3411 a root CA as a global signing root: that is any certificate that
3412 chains to that CA is an acceptable OCSP signing certificate.
3415 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
3416 extensions from a separate configuration file.
3417 As when reading extensions from the main configuration file,
3418 the '-extensions ...' option may be used for specifying the
3420 [Massimiliano Pala <madwolf@comune.modena.it>]
3422 *) New OCSP utility. Allows OCSP requests to be generated or
3423 read. The request can be sent to a responder and the output
3424 parsed, outputed or printed in text form. Not complete yet:
3425 still needs to check the OCSP response validity.
3428 *) New subcommands for 'openssl ca':
3429 'openssl ca -status <serial>' prints the status of the cert with
3430 the given serial number (according to the index file).
3431 'openssl ca -updatedb' updates the expiry status of certificates
3433 [Massimiliano Pala <madwolf@comune.modena.it>]
3435 *) New '-newreq-nodes' command option to CA.pl. This is like
3436 '-newreq', but calls 'openssl req' with the '-nodes' option
3437 so that the resulting key is not encrypted.
3438 [Damien Miller <djm@mindrot.org>]
3440 *) New configuration for the GNU Hurd.
3441 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
3443 *) Initial code to implement OCSP basic response verify. This
3444 is currently incomplete. Currently just finds the signer's
3445 certificate and verifies the signature on the response.
3448 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
3449 value of OPENSSLDIR. This is available via the new '-d' option
3450 to 'openssl version', and is also included in 'openssl version -a'.
3453 *) Allowing defining memory allocation callbacks that will be given
3454 file name and line number information in additional arguments
3455 (a const char* and an int). The basic functionality remains, as
3456 well as the original possibility to just replace malloc(),
3457 realloc() and free() by functions that do not know about these
3458 additional arguments. To register and find out the current
3459 settings for extended allocation functions, the following
3460 functions are provided:
3462 CRYPTO_set_mem_ex_functions
3463 CRYPTO_set_locked_mem_ex_functions
3464 CRYPTO_get_mem_ex_functions
3465 CRYPTO_get_locked_mem_ex_functions
3467 These work the same way as CRYPTO_set_mem_functions and friends.
3468 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
3469 extended allocation function is enabled.
3470 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
3471 a conventional allocation function is enabled.
3472 [Richard Levitte, Bodo Moeller]
3474 *) Finish off removing the remaining LHASH function pointer casts.
3475 There should no longer be any prototype-casting required when using
3476 the LHASH abstraction, and any casts that remain are "bugs". See
3477 the callback types and macros at the head of lhash.h for details
3478 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
3481 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
3482 If /dev/[u]random devices are not available or do not return enough
3483 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
3485 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
3486 /etc/entropy will be queried once each in this sequence, quering stops
3487 when enough entropy was collected without querying more sockets.
3490 *) Change the Unix RAND_poll() variant to be able to poll several
3491 random devices, as specified by DEVRANDOM, until a sufficient amount
3492 of data has been collected. We spend at most 10 ms on each file
3493 (select timeout) and read in non-blocking mode. DEVRANDOM now
3494 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
3495 (previously it was just the string "/dev/urandom"), so on typical
3496 platforms the 10 ms delay will never occur.
3497 Also separate out the Unix variant to its own file, rand_unix.c.
3498 For VMS, there's a currently-empty rand_vms.c.
3501 *) Move OCSP client related routines to ocsp_cl.c. These
3502 provide utility functions which an application needing
3503 to issue a request to an OCSP responder and analyse the
3504 response will typically need: as opposed to those which an
3505 OCSP responder itself would need which will be added later.
3507 OCSP_request_sign() signs an OCSP request with an API similar
3508 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
3509 response. OCSP_response_get1_basic() extracts basic response
3510 from response. OCSP_resp_find_status(): finds and extracts status
3511 information from an OCSP_CERTID structure (which will be created
3512 when the request structure is built). These are built from lower
3513 level functions which work on OCSP_SINGLERESP structures but
3514 wont normally be used unless the application wishes to examine
3515 extensions in the OCSP response for example.
3517 Replace nonce routines with a pair of functions.
3518 OCSP_request_add1_nonce() adds a nonce value and optionally
3519 generates a random value. OCSP_check_nonce() checks the
3520 validity of the nonce in an OCSP response.
3523 *) Change function OCSP_request_add() to OCSP_request_add0_id().
3524 This doesn't copy the supplied OCSP_CERTID and avoids the
3525 need to free up the newly created id. Change return type
3526 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
3527 This can then be used to add extensions to the request.
3528 Deleted OCSP_request_new(), since most of its functionality
3529 is now in OCSP_REQUEST_new() (and the case insensitive name
3530 clash) apart from the ability to set the request name which
3531 will be added elsewhere.
3534 *) Update OCSP API. Remove obsolete extensions argument from
3535 various functions. Extensions are now handled using the new
3536 OCSP extension code. New simple OCSP HTTP function which
3537 can be used to send requests and parse the response.
3540 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
3541 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
3542 uses the special reorder version of SET OF to sort the attributes
3543 and reorder them to match the encoded order. This resolves a long
3544 standing problem: a verify on a PKCS7 structure just after signing
3545 it used to fail because the attribute order did not match the
3546 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
3547 it uses the received order. This is necessary to tolerate some broken
3548 software that does not order SET OF. This is handled by encoding
3549 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
3550 to produce the required SET OF.
3553 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
3554 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
3555 files to get correct declarations of the ASN.1 item variables.
3558 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
3559 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
3560 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
3561 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
3562 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
3563 ASN1_ITEM and no wrapper functions.
3566 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
3567 replace the old function pointer based I/O routines. Change most of
3568 the *_d2i_bio() and *_d2i_fp() functions to use these.
3571 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
3572 lines, recognice more "algorithms" that can be deselected, and make
3573 it complain about algorithm deselection that isn't recognised.
3576 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
3577 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
3578 to use new functions. Add NO_ASN1_OLD which can be set to remove
3579 some old style ASN1 functions: this can be used to determine if old
3580 code will still work when these eventually go away.
3583 *) New extension functions for OCSP structures, these follow the
3584 same conventions as certificates and CRLs.
3587 *) New function X509V3_add1_i2d(). This automatically encodes and
3588 adds an extension. Its behaviour can be customised with various
3589 flags to append, replace or delete. Various wrappers added for
3590 certifcates and CRLs.
3593 *) Fix to avoid calling the underlying ASN1 print routine when
3594 an extension cannot be parsed. Correct a typo in the
3595 OCSP_SERVICELOC extension. Tidy up print OCSP format.
3598 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
3599 entries for variables.
3602 *) Add functionality to apps/openssl.c for detecting locking
3603 problems: As the program is single-threaded, all we have
3604 to do is register a locking callback using an array for
3605 storing which locks are currently held by the program.
3608 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
3609 SSL_get_ex_data_X509_STORE_idx(), which is used in
3610 ssl_verify_cert_chain() and thus can be called at any time
3611 during TLS/SSL handshakes so that thread-safety is essential.
3612 Unfortunately, the ex_data design is not at all suited
3613 for multi-threaded use, so it probably should be abolished.
3616 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
3617 [Broadcom, tweaked and integrated by Geoff Thorpe]
3619 *) Move common extension printing code to new function
3620 X509V3_print_extensions(). Reorganise OCSP print routines and
3621 implement some needed OCSP ASN1 functions. Add OCSP extensions.
3624 *) New function X509_signature_print() to remove duplication in some
3628 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
3629 set (this was treated exactly the same as SET OF previously). This
3630 is used to reorder the STACK representing the structure to match the
3631 encoding. This will be used to get round a problem where a PKCS7
3632 structure which was signed could not be verified because the STACK
3633 order did not reflect the encoded order.
3636 *) Reimplement the OCSP ASN1 module using the new code.
3639 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
3640 for its ASN1 operations. The old style function pointers still exist
3641 for now but they will eventually go away.
3644 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
3645 completely replaces the old ASN1 functionality with a table driven
3646 encoder and decoder which interprets an ASN1_ITEM structure describing
3647 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
3648 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
3649 has also been converted to the new form.
3652 *) Change BN_mod_exp_recp so that negative moduli are tolerated
3653 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
3654 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
3655 for negative moduli.
3658 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
3659 of not touching the result's sign bit.
3662 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
3666 *) Changed the LHASH code to use prototypes for callbacks, and created
3667 macros to declare and implement thin (optionally static) functions
3668 that provide type-safety and avoid function pointer casting for the
3669 type-specific callbacks.
3672 *) Added Kerberos Cipher Suites to be used with TLS, as written in
3674 [Veers Staats <staatsvr@asc.hpc.mil>,
3675 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
3677 *) Reformat the FAQ so the different questions and answers can be divided
3678 in sections depending on the subject.
3681 *) Have the zlib compression code load ZLIB.DLL dynamically under
3685 *) New function BN_mod_sqrt for computing square roots modulo a prime
3686 (using the probabilistic Tonelli-Shanks algorithm unless
3687 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
3688 be handled deterministically).
3689 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3691 *) Make BN_mod_inverse faster by explicitly handling small quotients
3692 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
3693 512 bits], about 30% for larger ones [1024 or 2048 bits].)
3696 *) New function BN_kronecker.
3699 *) Fix BN_gcd so that it works on negative inputs; the result is
3700 positive unless both parameters are zero.
3701 Previously something reasonably close to an infinite loop was
3702 possible because numbers could be growing instead of shrinking
3703 in the implementation of Euclid's algorithm.
3706 *) Fix BN_is_word() and BN_is_one() macros to take into account the
3707 sign of the number in question.
3709 Fix BN_is_word(a,w) to work correctly for w == 0.
3711 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
3712 because its test if the absolute value of 'a' equals 'w'.
3713 Note that BN_abs_is_word does *not* handle w == 0 reliably;
3714 it exists mostly for use in the implementations of BN_is_zero(),
3715 BN_is_one(), and BN_is_word().
3718 *) New function BN_swap.
3721 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
3722 the exponentiation functions are more likely to produce reasonable
3723 results on negative inputs.
3726 *) Change BN_mod_mul so that the result is always non-negative.
3727 Previously, it could be negative if one of the factors was negative;
3728 I don't think anyone really wanted that behaviour.
3731 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
3732 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
3733 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
3734 and add new functions:
3743 BN_mod_lshift1_quick
3747 These functions always generate non-negative results.
3749 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
3750 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
3752 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
3753 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
3754 be reduced modulo m.
3755 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3758 The following entry accidentily appeared in the CHANGES file
3759 distributed with OpenSSL 0.9.7. The modifications described in
3760 it do *not* apply to OpenSSL 0.9.7.
3762 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3763 was actually never needed) and in BN_mul(). The removal in BN_mul()
3764 required a small change in bn_mul_part_recursive() and the addition
3765 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3766 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3767 bn_sub_words() and bn_add_words() except they take arrays with
3772 *) In 'openssl passwd', verify passwords read from the terminal
3773 unless the '-salt' option is used (which usually means that
3774 verification would just waste user's time since the resulting
3775 hash is going to be compared with some given password hash)
3776 or the new '-noverify' option is used.
3778 This is an incompatible change, but it does not affect
3779 non-interactive use of 'openssl passwd' (passwords on the command
3780 line, '-stdin' option, '-in ...' option) and thus should not
3784 *) Remove all references to RSAref, since there's no more need for it.
3787 *) Make DSO load along a path given through an environment variable
3788 (SHLIB_PATH) with shl_load().
3791 *) Constify the ENGINE code as a result of BIGNUM constification.
3792 Also constify the RSA code and most things related to it. In a
3793 few places, most notable in the depth of the ASN.1 code, ugly
3794 casts back to non-const were required (to be solved at a later
3798 *) Make it so the openssl application has all engines loaded by default.
3801 *) Constify the BIGNUM routines a little more.
3804 *) Add the following functions:
3806 ENGINE_load_cswift()
3808 ENGINE_load_atalla()
3810 ENGINE_load_builtin_engines()
3812 That way, an application can itself choose if external engines that
3813 are built-in in OpenSSL shall ever be used or not. The benefit is
3814 that applications won't have to be linked with libdl or other dso
3815 libraries unless it's really needed.
3817 Changed 'openssl engine' to load all engines on demand.
3818 Changed the engine header files to avoid the duplication of some
3819 declarations (they differed!).
3822 *) 'openssl engine' can now list capabilities.
3825 *) Better error reporting in 'openssl engine'.
3828 *) Never call load_dh_param(NULL) in s_server.
3831 *) Add engine application. It can currently list engines by name and
3832 identity, and test if they are actually available.
3835 *) Improve RPM specification file by forcing symbolic linking and making
3836 sure the installed documentation is also owned by root.root.
3837 [Damien Miller <djm@mindrot.org>]
3839 *) Give the OpenSSL applications more possibilities to make use of
3840 keys (public as well as private) handled by engines.
3843 *) Add OCSP code that comes from CertCo.
3846 *) Add VMS support for the Rijndael code.
3849 *) Added untested support for Nuron crypto accelerator.
3852 *) Add support for external cryptographic devices. This code was
3853 previously distributed separately as the "engine" branch.
3854 [Geoff Thorpe, Richard Levitte]
3856 *) Rework the filename-translation in the DSO code. It is now possible to
3857 have far greater control over how a "name" is turned into a filename
3858 depending on the operating environment and any oddities about the
3859 different shared library filenames on each system.
3862 *) Support threads on FreeBSD-elf in Configure.
3865 *) Fix for SHA1 assembly problem with MASM: it produces
3866 warnings about corrupt line number information when assembling
3867 with debugging information. This is caused by the overlapping
3869 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
3872 NCONF_get_number() has no error checking at all. As a replacement,
3873 NCONF_get_number_e() is defined (_e for "error checking") and is
3874 promoted strongly. The old NCONF_get_number is kept around for
3875 binary backward compatibility.
3876 Make it possible for methods to load from something other than a BIO,
3877 by providing a function pointer that is given a name instead of a BIO.
3878 For example, this could be used to load configuration data from an
3882 *) Fix for non blocking accept BIOs. Added new I/O special reason
3883 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
3884 with non blocking I/O was not possible because no retry code was
3885 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
3889 *) Added the beginnings of Rijndael support.
3892 *) Fix for bug in DirectoryString mask setting. Add support for
3893 X509_NAME_print_ex() in 'req' and X509_print_ex() function
3894 to allow certificate printing to more controllable, additional
3895 'certopt' option to 'x509' to allow new printing options to be
3899 *) Clean old EAY MD5 hack from e_os.h.
3902 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
3904 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3905 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3906 [Joe Orton, Steve Henson]
3908 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
3910 *) Fix additional bug revealed by the NISCC test suite:
3912 Stop bug triggering large recursion when presented with
3913 certain ASN.1 tags (CVE-2003-0851)
3916 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
3918 *) Fix various bugs revealed by running the NISCC test suite:
3920 Stop out of bounds reads in the ASN1 code when presented with
3921 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3923 If verify callback ignores invalid public key errors don't try to check
3924 certificate signature with the NULL public key.
3928 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3929 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3933 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3934 extra data after the compression methods not only for TLS 1.0
3935 but also for SSL 3.0 (as required by the specification).
3936 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3938 *) Change X509_certificate_type() to mark the key as exported/exportable
3939 when it's 512 *bits* long, not 512 bytes.
3942 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
3944 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3945 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3946 a protocol version number mismatch like a decryption error
3947 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3950 *) Turn on RSA blinding by default in the default implementation
3951 to avoid a timing attack. Applications that don't want it can call
3952 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3953 They would be ill-advised to do so in most cases.
3954 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3956 *) Change RSA blinding code so that it works when the PRNG is not
3957 seeded (in this case, the secret RSA exponent is abused as
3958 an unpredictable seed -- if it is not unpredictable, there
3959 is no point in blinding anyway). Make RSA blinding thread-safe
3960 by remembering the creator's thread ID in rsa->blinding and
3961 having all other threads use local one-time blinding factors
3962 (this requires more computation than sharing rsa->blinding, but
3963 avoids excessive locking; and if an RSA object is not shared
3964 between threads, blinding will still be very fast).
3967 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
3969 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3970 via timing by performing a MAC computation even if incorrrect
3971 block cipher padding has been found. This is a countermeasure
3972 against active attacks where the attacker has to distinguish
3973 between bad padding and a MAC verification error. (CVE-2003-0078)
3975 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3976 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3977 Martin Vuagnoux (EPFL, Ilion)]
3979 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
3981 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
3982 memory from it's contents. This is done with a counter that will
3983 place alternating values in each byte. This can be used to solve
3984 two issues: 1) the removal of calls to memset() by highly optimizing
3985 compilers, and 2) cleansing with other values than 0, since those can
3986 be read through on certain media, for example a swap space on disk.
3989 *) Bugfix: client side session caching did not work with external caching,
3990 because the session->cipher setting was not restored when reloading
3991 from the external cache. This problem was masked, when
3992 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
3993 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
3996 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
3997 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
3998 [Zeev Lieber <zeev-l@yahoo.com>]
4000 *) Undo an undocumented change introduced in 0.9.6e which caused
4001 repeated calls to OpenSSL_add_all_ciphers() and
4002 OpenSSL_add_all_digests() to be ignored, even after calling
4006 *) Change the default configuration reader to deal with last line not
4007 being properly terminated.
4010 *) Change X509_NAME_cmp() so it applies the special rules on handling
4011 DN values that are of type PrintableString, as well as RDNs of type
4012 emailAddress where the value has the type ia5String.
4013 [stefank@valicert.com via Richard Levitte]
4015 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
4016 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
4017 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
4018 the bitwise-OR of the two for use by the majority of applications
4019 wanting this behaviour, and update the docs. The documented
4020 behaviour and actual behaviour were inconsistent and had been
4021 changing anyway, so this is more a bug-fix than a behavioural
4023 [Geoff Thorpe, diagnosed by Nadav Har'El]
4025 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
4026 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
4029 *) Fix initialization code race conditions in
4030 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
4031 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
4032 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
4033 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
4034 ssl2_get_cipher_by_char(),
4035 ssl3_get_cipher_by_char().
4036 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
4038 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
4039 the cached sessions are flushed, as the remove_cb() might use ex_data
4040 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
4041 (see [openssl.org #212]).
4042 [Geoff Thorpe, Lutz Jaenicke]
4044 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
4045 length, instead of the encoding length to d2i_ASN1_OBJECT.
4048 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
4050 *) [In 0.9.6g-engine release:]
4051 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
4052 [Lynn Gazis <lgazis@rainbow.com>]
4054 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
4056 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
4057 and get fix the header length calculation.
4058 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
4059 Alon Kantor <alonk@checkpoint.com> (and others),
4062 *) Use proper error handling instead of 'assertions' in buffer
4063 overflow checks added in 0.9.6e. This prevents DoS (the
4064 assertions could call abort()).
4065 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
4067 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
4069 *) Add various sanity checks to asn1_get_length() to reject
4070 the ASN1 length bytes if they exceed sizeof(long), will appear
4071 negative or the content length exceeds the length of the
4073 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4075 *) Fix cipher selection routines: ciphers without encryption had no flags
4076 for the cipher strength set and where therefore not handled correctly
4077 by the selection routines (PR #130).
4080 *) Fix EVP_dsa_sha macro.
4084 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
4085 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
4086 that was added in OpenSSL 0.9.6d.
4088 As the countermeasure turned out to be incompatible with some
4089 broken SSL implementations, the new option is part of SSL_OP_ALL.
4090 SSL_OP_ALL is usually employed when compatibility with weird SSL
4091 implementations is desired (e.g. '-bugs' option to 's_client' and
4092 's_server'), so the new option is automatically set in many
4096 *) Changes in security patch:
4098 Changes marked "(CHATS)" were sponsored by the Defense Advanced
4099 Research Projects Agency (DARPA) and Air Force Research Laboratory,
4100 Air Force Materiel Command, USAF, under agreement number
4103 *) Add various sanity checks to asn1_get_length() to reject
4104 the ASN1 length bytes if they exceed sizeof(long), will appear
4105 negative or the content length exceeds the length of the
4106 supplied buffer. (CVE-2002-0659)
4107 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4109 *) Assertions for various potential buffer overflows, not known to
4111 [Ben Laurie (CHATS)]
4113 *) Various temporary buffers to hold ASCII versions of integers were
4114 too small for 64 bit platforms. (CVE-2002-0655)
4115 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
4117 *) Remote buffer overflow in SSL3 protocol - an attacker could
4118 supply an oversized session ID to a client. (CVE-2002-0656)
4119 [Ben Laurie (CHATS)]
4121 *) Remote buffer overflow in SSL2 protocol - an attacker could
4122 supply an oversized client master key. (CVE-2002-0656)
4123 [Ben Laurie (CHATS)]
4125 Changes between 0.9.6c and 0.9.6d [9 May 2002]
4127 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
4128 encoded as NULL) with id-dsa-with-sha1.
4129 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
4131 *) Check various X509_...() return values in apps/req.c.
4132 [Nils Larsch <nla@trustcenter.de>]
4134 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
4135 an end-of-file condition would erronously be flagged, when the CRLF
4136 was just at the end of a processed block. The bug was discovered when
4137 processing data through a buffering memory BIO handing the data to a
4138 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
4139 <ptsekov@syntrex.com> and Nedelcho Stanev.
4142 *) Implement a countermeasure against a vulnerability recently found
4143 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
4144 before application data chunks to avoid the use of known IVs
4145 with data potentially chosen by the attacker.
4148 *) Fix length checks in ssl3_get_client_hello().
4151 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
4152 to prevent ssl3_read_internal() from incorrectly assuming that
4153 ssl3_read_bytes() found application data while handshake
4154 processing was enabled when in fact s->s3->in_read_app_data was
4155 merely automatically cleared during the initial handshake.
4156 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
4158 *) Fix object definitions for Private and Enterprise: they were not
4159 recognized in their shortname (=lowercase) representation. Extend
4160 obj_dat.pl to issue an error when using undefined keywords instead
4161 of silently ignoring the problem (Svenning Sorensen
4162 <sss@sss.dnsalias.net>).
4165 *) Fix DH_generate_parameters() so that it works for 'non-standard'
4166 generators, i.e. generators other than 2 and 5. (Previously, the
4167 code did not properly initialise the 'add' and 'rem' values to
4168 BN_generate_prime().)
4170 In the new general case, we do not insist that 'generator' is
4171 actually a primitive root: This requirement is rather pointless;
4172 a generator of the order-q subgroup is just as good, if not
4176 *) Map new X509 verification errors to alerts. Discovered and submitted by
4177 Tom Wu <tom@arcot.com>.
4180 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
4181 returning non-zero before the data has been completely received
4182 when using non-blocking I/O.
4183 [Bodo Moeller; problem pointed out by John Hughes]
4185 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
4186 [Ben Laurie, Lutz Jaenicke]
4188 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
4189 Yoram Zahavi <YoramZ@gilian.com>).
4192 *) Add information about CygWin 1.3 and on, and preserve proper
4193 configuration for the versions before that.
4194 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
4196 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
4197 check whether we deal with a copy of a session and do not delete from
4198 the cache in this case. Problem reported by "Izhar Shoshani Levi"
4199 <izhar@checkpoint.com>.
4202 *) Do not store session data into the internal session cache, if it
4203 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
4204 flag is set). Proposed by Aslam <aslam@funk.com>.
4207 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
4211 *) [In 0.9.6d-engine release:]
4212 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4213 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4215 *) Add the configuration target linux-s390x.
4216 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
4218 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
4219 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
4220 variable as an indication that a ClientHello message has been
4221 received. As the flag value will be lost between multiple
4222 invocations of ssl3_accept when using non-blocking I/O, the
4223 function may not be aware that a handshake has actually taken
4224 place, thus preventing a new session from being added to the
4227 To avoid this problem, we now set s->new_session to 2 instead of
4228 using a local variable.
4229 [Lutz Jaenicke, Bodo Moeller]
4231 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
4232 if the SSL_R_LENGTH_MISMATCH error is detected.
4233 [Geoff Thorpe, Bodo Moeller]
4235 *) New 'shared_ldflag' column in Configure platform table.
4238 *) Fix EVP_CIPHER_mode macro.
4239 ["Dan S. Camper" <dan@bti.net>]
4241 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
4242 type, we must throw them away by setting rr->length to 0.
4243 [D P Chang <dpc@qualys.com>]
4245 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
4247 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
4248 <Dominikus.Scherkl@biodata.com>. (The previous implementation
4249 worked incorrectly for those cases where range = 10..._2 and
4250 3*range is two bits longer than range.)
4253 *) Only add signing time to PKCS7 structures if it is not already
4257 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
4258 OBJ_ld_ce should be OBJ_id_ce.
4259 Also some ip-pda OIDs in crypto/objects/objects.txt were
4260 incorrect (cf. RFC 3039).
4261 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
4263 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
4264 returns early because it has nothing to do.
4265 [Andy Schneider <andy.schneider@bjss.co.uk>]
4267 *) [In 0.9.6c-engine release:]
4268 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
4269 [Andy Schneider <andy.schneider@bjss.co.uk>]
4271 *) [In 0.9.6c-engine release:]
4272 Add support for Cryptographic Appliance's keyserver technology.
4273 (Use engine 'keyclient')
4274 [Cryptographic Appliances and Geoff Thorpe]
4276 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
4277 is called via tools/c89.sh because arguments have to be
4278 rearranged (all '-L' options must appear before the first object
4280 [Richard Shapiro <rshapiro@abinitio.com>]
4282 *) [In 0.9.6c-engine release:]
4283 Add support for Broadcom crypto accelerator cards, backported
4285 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
4287 *) [In 0.9.6c-engine release:]
4288 Add support for SureWare crypto accelerator cards from
4289 Baltimore Technologies. (Use engine 'sureware')
4290 [Baltimore Technologies and Mark Cox]
4292 *) [In 0.9.6c-engine release:]
4293 Add support for crypto accelerator cards from Accelerated
4294 Encryption Processing, www.aep.ie. (Use engine 'aep')
4295 [AEP Inc. and Mark Cox]
4297 *) Add a configuration entry for gcc on UnixWare.
4298 [Gary Benson <gbenson@redhat.com>]
4300 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
4301 messages are stored in a single piece (fixed-length part and
4302 variable-length part combined) and fix various bugs found on the way.
4305 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
4306 instead. BIO_gethostbyname() does not know what timeouts are
4307 appropriate, so entries would stay in cache even when they have
4309 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
4311 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
4312 faced with a pathologically small ClientHello fragment that does
4313 not contain client_version: Instead of aborting with an error,
4314 simply choose the highest available protocol version (i.e.,
4315 TLS 1.0 unless it is disabled). In practice, ClientHello
4316 messages are never sent like this, but this change gives us
4317 strictly correct behaviour at least for TLS.
4320 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
4321 never resets s->method to s->ctx->method when called from within
4322 one of the SSL handshake functions.
4323 [Bodo Moeller; problem pointed out by Niko Baric]
4325 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
4326 (sent using the client's version number) if client_version is
4327 smaller than the protocol version in use. Also change
4328 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
4329 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
4330 the client will at least see that alert.
4333 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
4337 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
4338 client receives HelloRequest while in a handshake.
4339 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
4341 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
4342 should end in 'break', not 'goto end' which circuments various
4343 cleanups done in state SSL_ST_OK. But session related stuff
4344 must be disabled for SSL_ST_OK in the case that we just sent a
4347 Also avoid some overhead by not calling ssl_init_wbio_buffer()
4348 before just sending a HelloRequest.
4349 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
4351 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
4352 reveal whether illegal block cipher padding was found or a MAC
4353 verification error occured. (Neither SSLerr() codes nor alerts
4354 are directly visible to potential attackers, but the information
4355 may leak via logfiles.)
4357 Similar changes are not required for the SSL 2.0 implementation
4358 because the number of padding bytes is sent in clear for SSL 2.0,
4359 and the extra bytes are just ignored. However ssl/s2_pkt.c
4360 failed to verify that the purported number of padding bytes is in
4364 *) Add OpenUNIX-8 support including shared libraries
4365 (Boyd Lynn Gerber <gerberb@zenez.com>).
4368 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
4369 'wristwatch attack' using huge encoding parameters (cf.
4370 James H. Manger's CRYPTO 2001 paper). Note that the
4371 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
4372 encoding parameters and hence was not vulnerable.
4375 *) BN_sqr() bug fix.
4376 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
4378 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
4379 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
4380 followed by modular reduction.
4381 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
4383 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
4384 equivalent based on BN_pseudo_rand() instead of BN_rand().
4387 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
4388 This function was broken, as the check for a new client hello message
4389 to handle SGC did not allow these large messages.
4390 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
4393 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
4396 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
4397 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
4400 *) Rework the configuration and shared library support for Tru64 Unix.
4401 The configuration part makes use of modern compiler features and
4402 still retains old compiler behavior for those that run older versions
4403 of the OS. The shared library support part includes a variant that
4404 uses the RPATH feature, and is available through the special
4405 configuration target "alpha-cc-rpath", which will never be selected
4407 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
4409 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
4410 with the same message size as in ssl3_get_certificate_request().
4411 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
4412 messages might inadvertently be reject as too long.
4413 [Petr Lampa <lampa@fee.vutbr.cz>]
4415 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
4418 *) Modified SSL library such that the verify_callback that has been set
4419 specificly for an SSL object with SSL_set_verify() is actually being
4420 used. Before the change, a verify_callback set with this function was
4421 ignored and the verify_callback() set in the SSL_CTX at the time of
4422 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
4423 to allow the necessary settings.
4426 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
4427 explicitly to NULL, as at least on Solaris 8 this seems not always to be
4428 done automatically (in contradiction to the requirements of the C
4429 standard). This made problems when used from OpenSSH.
4432 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
4433 dh->length and always used
4435 BN_rand_range(priv_key, dh->p).
4437 BN_rand_range() is not necessary for Diffie-Hellman, and this
4438 specific range makes Diffie-Hellman unnecessarily inefficient if
4439 dh->length (recommended exponent length) is much smaller than the
4440 length of dh->p. We could use BN_rand_range() if the order of
4441 the subgroup was stored in the DH structure, but we only have
4446 BN_rand(priv_key, l, ...)
4448 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
4454 RSA_eay_public_encrypt
4455 RSA_eay_private_decrypt
4456 RSA_eay_private_encrypt (signing)
4457 RSA_eay_public_decrypt (signature verification)
4459 (default implementations for RSA_public_encrypt,
4460 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
4461 always reject numbers >= n.
4464 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
4465 to synchronize access to 'locking_thread'. This is necessary on
4466 systems where access to 'locking_thread' (an 'unsigned long'
4467 variable) is not atomic.
4470 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
4471 *before* setting the 'crypto_lock_rand' flag. The previous code had
4472 a race condition if 0 is a valid thread ID.
4473 [Travis Vitek <vitek@roguewave.com>]
4475 *) Add support for shared libraries under Irix.
4476 [Albert Chin-A-Young <china@thewrittenword.com>]
4478 *) Add configuration option to build on Linux on both big-endian and
4480 [Ralf Baechle <ralf@uni-koblenz.de>]
4482 *) Add the possibility to create shared libraries on HP-UX.
4485 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
4487 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
4488 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
4489 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
4490 PRNG state recovery was possible based on the output of
4491 one PRNG request appropriately sized to gain knowledge on
4492 'md' followed by enough consecutive 1-byte PRNG requests
4493 to traverse all of 'state'.
4495 1. When updating 'md_local' (the current thread's copy of 'md')
4496 during PRNG output generation, hash all of the previous
4497 'md_local' value, not just the half used for PRNG output.
4499 2. Make the number of bytes from 'state' included into the hash
4500 independent from the number of PRNG bytes requested.
4502 The first measure alone would be sufficient to avoid
4503 Markku-Juhani's attack. (Actually it had never occurred
4504 to me that the half of 'md_local' used for chaining was the
4505 half from which PRNG output bytes were taken -- I had always
4506 assumed that the secret half would be used.) The second
4507 measure makes sure that additional data from 'state' is never
4508 mixed into 'md_local' in small portions; this heuristically
4509 further strengthens the PRNG.
4512 *) Fix crypto/bn/asm/mips3.s.
4515 *) When only the key is given to "enc", the IV is undefined. Print out
4516 an error message in this case.
4519 *) Handle special case when X509_NAME is empty in X509 printing routines.
4522 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
4523 positive and less than q.
4526 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
4527 used: it isn't thread safe and the add_lock_callback should handle
4529 [Paul Rose <Paul.Rose@bridge.com>]
4531 *) Verify that incoming data obeys the block size in
4532 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
4536 [Ulf Möller, Bodo Möller]
4538 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
4539 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
4540 when fixing the server behaviour for backwards-compatible 'client
4541 hello' messages. (Note that the attack is impractical against
4542 SSL 3.0 and TLS 1.0 anyway because length and version checking
4543 means that the probability of guessing a valid ciphertext is
4544 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
4547 Before 0.9.5, the countermeasure (hide the error by generating a
4548 random 'decryption result') did not work properly because
4549 ERR_clear_error() was missing, meaning that SSL_get_error() would
4550 detect the supposedly ignored error.
4552 Both problems are now fixed.
4555 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
4556 (previously it was 1024).
4559 *) Fix for compatibility mode trust settings: ignore trust settings
4560 unless some valid trust or reject settings are present.
4563 *) Fix for blowfish EVP: its a variable length cipher.
4566 *) Fix various bugs related to DSA S/MIME verification. Handle missing
4567 parameters in DSA public key structures and return an error in the
4568 DSA routines if parameters are absent.
4571 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
4572 in the current directory if neither $RANDFILE nor $HOME was set.
4573 RAND_file_name() in 0.9.6a returned NULL in this case. This has
4574 caused some confusion to Windows users who haven't defined $HOME.
4575 Thus RAND_file_name() is changed again: e_os.h can define a
4576 DEFAULT_HOME, which will be used if $HOME is not set.
4577 For Windows, we use "C:"; on other platforms, we still require
4578 environment variables.
4580 *) Move 'if (!initialized) RAND_poll()' into regions protected by
4581 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
4582 having multiple threads call RAND_poll() concurrently.
4585 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
4586 combination of a flag and a thread ID variable.
4587 Otherwise while one thread is in ssleay_rand_bytes (which sets the
4588 flag), *other* threads can enter ssleay_add_bytes without obeying
4589 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
4590 that they do not hold after the first thread unsets add_do_not_lock).
4593 *) Change bctest again: '-x' expressions are not available in all
4597 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
4599 *) Fix a couple of memory leaks in PKCS7_dataDecode()
4600 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
4602 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
4603 the default extension for executables, if any. Also, make the perl
4604 scripts that use symlink() to test if it really exists and use "cp"
4605 if it doesn't. All this made OpenSSL compilable and installable in
4609 *) Fix for asn1_GetSequence() for indefinite length constructed data.
4610 If SEQUENCE is length is indefinite just set c->slen to the total
4611 amount of data available.
4612 [Steve Henson, reported by shige@FreeBSD.org]
4613 [This change does not apply to 0.9.7.]
4615 *) Change bctest to avoid here-documents inside command substitution
4616 (workaround for FreeBSD /bin/sh bug).
4617 For compatibility with Ultrix, avoid shell functions (introduced
4618 in the bctest version that searches along $PATH).
4621 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
4622 with des_encrypt() defined on some operating systems, like Solaris
4626 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
4627 On the Importance of Eliminating Errors in Cryptographic
4628 Computations, J. Cryptology 14 (2001) 2, 101-119,
4629 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
4632 *) MIPS assembler BIGNUM division bug fix.
4635 *) Disabled incorrect Alpha assembler code.
4638 *) Fix PKCS#7 decode routines so they correctly update the length
4639 after reading an EOC for the EXPLICIT tag.
4641 [This change does not apply to 0.9.7.]
4643 *) Fix bug in PKCS#12 key generation routines. This was triggered
4644 if a 3DES key was generated with a 0 initial byte. Include
4645 PKCS12_BROKEN_KEYGEN compilation option to retain the old
4646 (but broken) behaviour.
4649 *) Enhance bctest to search for a working bc along $PATH and print
4651 [Tim Rice <tim@multitalents.net> via Richard Levitte]
4653 *) Fix memory leaks in err.c: free err_data string if necessary;
4654 don't write to the wrong index in ERR_set_error_data.
4657 *) Implement ssl23_peek (analogous to ssl23_read), which previously
4661 *) Replace rdtsc with _emit statements for VC++ version 5.
4662 [Jeremy Cooper <jeremy@baymoo.org>]
4664 *) Make it possible to reuse SSLv2 sessions.
4667 *) In copy_email() check for >= 0 as a return value for
4668 X509_NAME_get_index_by_NID() since 0 is a valid index.
4669 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
4671 *) Avoid coredump with unsupported or invalid public keys by checking if
4672 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
4673 PKCS7_verify() fails with non detached data.
4676 *) Don't use getenv in library functions when run as setuid/setgid.
4677 New function OPENSSL_issetugid().
4680 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
4681 due to incorrect handling of multi-threading:
4683 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
4685 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
4687 3. Count how many times MemCheck_off() has been called so that
4688 nested use can be treated correctly. This also avoids
4689 inband-signalling in the previous code (which relied on the
4690 assumption that thread ID 0 is impossible).
4693 *) Add "-rand" option also to s_client and s_server.
4696 *) Fix CPU detection on Irix 6.x.
4697 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
4698 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4700 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
4703 [This change does not apply to 0.9.7.]
4705 *) Use the cached encoding of an X509_NAME structure rather than
4706 copying it. This is apparently the reason for the libsafe "errors"
4707 but the code is actually correct.
4710 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
4711 Bleichenbacher's DSA attack.
4712 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
4713 to be set and top=0 forces the highest bit to be set; top=-1 is new
4714 and leaves the highest bit random.
4715 [Ulf Moeller, Bodo Moeller]
4717 *) In the NCONF_...-based implementations for CONF_... queries
4718 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
4719 a temporary CONF structure with the data component set to NULL
4720 (which gives segmentation faults in lh_retrieve).
4721 Instead, use NULL for the CONF pointer in CONF_get_string and
4722 CONF_get_number (which may use environment variables) and directly
4723 return NULL from CONF_get_section.
4726 *) Fix potential buffer overrun for EBCDIC.
4729 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
4730 keyUsage if basicConstraints absent for a CA.
4733 *) Make SMIME_write_PKCS7() write mail header values with a format that
4734 is more generally accepted (no spaces before the semicolon), since
4735 some programs can't parse those values properly otherwise. Also make
4736 sure BIO's that break lines after each write do not create invalid
4740 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
4741 macros previously used would not encode an empty SEQUENCE OF
4742 and break the signature.
4744 [This change does not apply to 0.9.7.]
4746 *) Zero the premaster secret after deriving the master secret in
4750 *) Add some EVP_add_digest_alias registrations (as found in
4751 OpenSSL_add_all_digests()) to SSL_library_init()
4752 aka OpenSSL_add_ssl_algorithms(). This provides improved
4753 compatibility with peers using X.509 certificates
4754 with unconventional AlgorithmIdentifier OIDs.
4757 *) Fix for Irix with NO_ASM.
4758 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4760 *) ./config script fixes.
4761 [Ulf Moeller, Richard Levitte]
4763 *) Fix 'openssl passwd -1'.
4766 *) Change PKCS12_key_gen_asc() so it can cope with non null
4767 terminated strings whose length is passed in the passlen
4768 parameter, for example from PEM callbacks. This was done
4769 by adding an extra length parameter to asc2uni().
4770 [Steve Henson, reported by <oddissey@samsung.co.kr>]
4772 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
4773 call failed, free the DSA structure.
4776 *) Fix to uni2asc() to cope with zero length Unicode strings.
4777 These are present in some PKCS#12 files.
4780 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
4781 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
4782 when writing a 32767 byte record.
4783 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
4785 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
4786 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
4788 (RSA objects have a reference count access to which is protected
4789 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
4790 so they are meant to be shared between threads.)
4791 [Bodo Moeller, Geoff Thorpe; original patch submitted by
4792 "Reddie, Steven" <Steven.Reddie@ca.com>]
4794 *) Fix a deadlock in CRYPTO_mem_leaks().
4797 *) Use better test patterns in bntest.
4800 *) rand_win.c fix for Borland C.
4803 *) BN_rshift bugfix for n == 0.
4806 *) Add a 'bctest' script that checks for some known 'bc' bugs
4807 so that 'make test' does not abort just because 'bc' is broken.
4810 *) Store verify_result within SSL_SESSION also for client side to
4811 avoid potential security hole. (Re-used sessions on the client side
4812 always resulted in verify_result==X509_V_OK, not using the original
4813 result of the server certificate verification.)
4816 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
4817 SSL3_RT_APPLICATION_DATA, return 0.
4818 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
4822 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
4823 releases, have been re-implemented by renaming the previous
4824 implementations of ssl2_read and ssl3_read to ssl2_read_internal
4825 and ssl3_read_internal, respectively, and adding 'peek' parameters
4826 to them. The new ssl[23]_{read,peek} functions are calls to
4827 ssl[23]_read_internal with the 'peek' flag set appropriately.
4828 A 'peek' parameter has also been added to ssl3_read_bytes, which
4829 does the actual work for ssl3_read_internal.
4832 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
4833 the method-specific "init()" handler. Also clean up ex_data after
4834 calling the method-specific "finish()" handler. Previously, this was
4835 happening the other way round.
4838 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
4839 The previous value, 12, was not always sufficient for BN_mod_exp().
4842 *) Make sure that shared libraries get the internal name engine with
4843 the full version number and not just 0. This should mark the
4844 shared libraries as not backward compatible. Of course, this should
4845 be changed again when we can guarantee backward binary compatibility.
4848 *) Fix typo in get_cert_by_subject() in by_dir.c
4849 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
4851 *) Rework the system to generate shared libraries:
4853 - Make note of the expected extension for the shared libraries and
4854 if there is a need for symbolic links from for example libcrypto.so.0
4855 to libcrypto.so.0.9.7. There is extended info in Configure for
4858 - Make as few rebuilds of the shared libraries as possible.
4860 - Still avoid linking the OpenSSL programs with the shared libraries.
4862 - When installing, install the shared libraries separately from the
4866 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
4868 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
4869 and not in SSL_clear because the latter is also used by the
4870 accept/connect functions; previously, the settings made by
4871 SSL_set_read_ahead would be lost during the handshake.
4872 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
4874 *) Correct util/mkdef.pl to be selective about disabled algorithms.
4875 Previously, it would create entries for disableed algorithms no
4879 *) Added several new manual pages for SSL_* function.
4882 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
4884 *) In ssl23_get_client_hello, generate an error message when faced
4885 with an initial SSL 3.0/TLS record that is too small to contain the
4886 first two bytes of the ClientHello message, i.e. client_version.
4887 (Note that this is a pathologic case that probably has never happened
4888 in real life.) The previous approach was to use the version number
4889 from the record header as a substitute; but our protocol choice
4890 should not depend on that one because it is not authenticated
4891 by the Finished messages.
4894 *) More robust randomness gathering functions for Windows.
4895 [Jeffrey Altman <jaltman@columbia.edu>]
4897 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
4898 not set then we don't setup the error code for issuer check errors
4899 to avoid possibly overwriting other errors which the callback does
4900 handle. If an application does set the flag then we assume it knows
4901 what it is doing and can handle the new informational codes
4905 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
4906 a general "ANY" type, as such it should be able to decode anything
4907 including tagged types. However it didn't check the class so it would
4908 wrongly interpret tagged types in the same way as their universal
4909 counterpart and unknown types were just rejected. Changed so that the
4910 tagged and unknown types are handled in the same way as a SEQUENCE:
4911 that is the encoding is stored intact. There is also a new type
4912 "V_ASN1_OTHER" which is used when the class is not universal, in this
4913 case we have no idea what the actual type is so we just lump them all
4917 *) On VMS, stdout may very well lead to a file that is written to
4918 in a record-oriented fashion. That means that every write() will
4919 write a separate record, which will be read separately by the
4920 programs trying to read from it. This can be very confusing.
4922 The solution is to put a BIO filter in the way that will buffer
4923 text until a linefeed is reached, and then write everything a
4924 line at a time, so every record written will be an actual line,
4925 not chunks of lines and not (usually doesn't happen, but I've
4926 seen it once) several lines in one record. BIO_f_linebuffer() is
4929 Currently, it's a VMS-only method, because that's where it has
4930 been tested well enough.
4933 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
4934 it can return incorrect results.
4935 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
4936 but it was in 0.9.6-beta[12].)
4939 *) Disable the check for content being present when verifying detached
4940 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
4941 include zero length content when signing messages.
4944 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
4945 BIO_ctrl (for BIO pairs).
4948 *) Add DSO method for VMS.
4951 *) Bug fix: Montgomery multiplication could produce results with the
4955 *) Add RPM specification openssl.spec and modify it to build three
4956 packages. The default package contains applications, application
4957 documentation and run-time libraries. The devel package contains
4958 include files, static libraries and function documentation. The
4959 doc package contains the contents of the doc directory. The original
4960 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
4963 *) Add a large number of documentation files for many SSL routines.
4964 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
4966 *) Add a configuration entry for Sony News 4.
4967 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
4969 *) Don't set the two most significant bits to one when generating a
4970 random number < q in the DSA library.
4973 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
4974 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
4975 the underlying transport is blocking) if a handshake took place.
4976 (The default behaviour is needed by applications such as s_client
4977 and s_server that use select() to determine when to use SSL_read;
4978 but for applications that know in advance when to expect data, it
4979 just makes things more complicated.)
4982 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
4986 *) Add a few more EBCDIC conditionals that make `req' and `x509'
4987 work better on such systems.
4988 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
4990 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
4991 Update PKCS12_parse() so it copies the friendlyName and the
4992 keyid to the certificates aux info.
4995 *) Fix bug in PKCS7_verify() which caused an infinite loop
4996 if there was more than one signature.
4997 [Sven Uszpelkat <su@celocom.de>]
4999 *) Major change in util/mkdef.pl to include extra information
5000 about each symbol, as well as presentig variables as well
5001 as functions. This change means that there's n more need
5002 to rebuild the .num files when some algorithms are excluded.
5005 *) Allow the verify time to be set by an application,
5006 rather than always using the current time.
5009 *) Phase 2 verify code reorganisation. The certificate
5010 verify code now looks up an issuer certificate by a
5011 number of criteria: subject name, authority key id
5012 and key usage. It also verifies self signed certificates
5013 by the same criteria. The main comparison function is
5014 X509_check_issued() which performs these checks.
5016 Lot of changes were necessary in order to support this
5017 without completely rewriting the lookup code.
5019 Authority and subject key identifier are now cached.
5021 The LHASH 'certs' is X509_STORE has now been replaced
5022 by a STACK_OF(X509_OBJECT). This is mainly because an
5023 LHASH can't store or retrieve multiple objects with
5024 the same hash value.
5026 As a result various functions (which were all internal
5027 use only) have changed to handle the new X509_STORE
5028 structure. This will break anything that messed round
5029 with X509_STORE internally.
5031 The functions X509_STORE_add_cert() now checks for an
5032 exact match, rather than just subject name.
5034 The X509_STORE API doesn't directly support the retrieval
5035 of multiple certificates matching a given criteria, however
5036 this can be worked round by performing a lookup first
5037 (which will fill the cache with candidate certificates)
5038 and then examining the cache for matches. This is probably
5039 the best we can do without throwing out X509_LOOKUP
5040 entirely (maybe later...).
5042 The X509_VERIFY_CTX structure has been enhanced considerably.
5044 All certificate lookup operations now go via a get_issuer()
5045 callback. Although this currently uses an X509_STORE it
5046 can be replaced by custom lookups. This is a simple way
5047 to bypass the X509_STORE hackery necessary to make this
5048 work and makes it possible to use more efficient techniques
5049 in future. A very simple version which uses a simple
5050 STACK for its trusted certificate store is also provided
5051 using X509_STORE_CTX_trusted_stack().
5053 The verify_cb() and verify() callbacks now have equivalents
5054 in the X509_STORE_CTX structure.
5056 X509_STORE_CTX also has a 'flags' field which can be used
5057 to customise the verify behaviour.
5060 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
5061 excludes S/MIME capabilities.
5064 *) When a certificate request is read in keep a copy of the
5065 original encoding of the signed data and use it when outputing
5066 again. Signatures then use the original encoding rather than
5067 a decoded, encoded version which may cause problems if the
5068 request is improperly encoded.
5071 *) For consistency with other BIO_puts implementations, call
5072 buffer_write(b, ...) directly in buffer_puts instead of calling
5075 In BIO_puts, increment b->num_write as in BIO_write.
5076 [Peter.Sylvester@EdelWeb.fr]
5078 *) Fix BN_mul_word for the case where the word is 0. (We have to use
5079 BN_zero, we may not return a BIGNUM with an array consisting of
5083 *) Avoid calling abort() from within the library when problems are
5084 detected, except if preprocessor symbols have been defined
5085 (such as REF_CHECK, BN_DEBUG etc.).
5088 *) New openssl application 'rsautl'. This utility can be
5089 used for low level RSA operations. DER public key
5090 BIO/fp routines also added.
5093 *) New Configure entry and patches for compiling on QNX 4.
5094 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
5096 *) A demo state-machine implementation was sponsored by
5097 Nuron (http://www.nuron.com/) and is now available in
5098 demos/state_machine.
5101 *) New options added to the 'dgst' utility for signature
5102 generation and verification.
5105 *) Unrecognized PKCS#7 content types are now handled via a
5106 catch all ASN1_TYPE structure. This allows unsupported
5107 types to be stored as a "blob" and an application can
5108 encode and decode it manually.
5111 *) Fix various signed/unsigned issues to make a_strex.c
5113 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
5115 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
5116 length if passed a buffer. ASN1_INTEGER_to_BN failed
5117 if passed a NULL BN and its argument was negative.
5118 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
5120 *) Modification to PKCS#7 encoding routines to output definite
5121 length encoding. Since currently the whole structures are in
5122 memory there's not real point in using indefinite length
5123 constructed encoding. However if OpenSSL is compiled with
5124 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
5127 *) Added BIO_vprintf() and BIO_vsnprintf().
5130 *) Added more prefixes to parse for in the the strings written
5131 through a logging bio, to cover all the levels that are available
5132 through syslog. The prefixes are now:
5134 PANIC, EMERG, EMR => LOG_EMERG
5135 ALERT, ALR => LOG_ALERT
5136 CRIT, CRI => LOG_CRIT
5137 ERROR, ERR => LOG_ERR
5138 WARNING, WARN, WAR => LOG_WARNING
5139 NOTICE, NOTE, NOT => LOG_NOTICE
5140 INFO, INF => LOG_INFO
5141 DEBUG, DBG => LOG_DEBUG
5143 and as before, if none of those prefixes are present at the
5144 beginning of the string, LOG_ERR is chosen.
5146 On Win32, the LOG_* levels are mapped according to this:
5148 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
5149 LOG_WARNING => EVENTLOG_WARNING_TYPE
5150 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
5154 *) Made it possible to reconfigure with just the configuration
5155 argument "reconf" or "reconfigure". The command line arguments
5156 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
5157 and are retrieved from there when reconfiguring.
5161 [Assar Westerlund <assar@sics.se>, Richard Levitte]
5163 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
5166 *) The obj_dat.pl script was messing up the sorting of object
5167 names. The reason was that it compared the quoted version
5168 of strings as a result "OCSP" > "OCSP Signing" because
5169 " > SPACE. Changed script to store unquoted versions of
5170 names and add quotes on output. It was also omitting some
5171 names from the lookup table if they were given a default
5172 value (that is if SN is missing it is given the same
5173 value as LN and vice versa), these are now added on the
5174 grounds that if an object has a name we should be able to
5175 look it up. Finally added warning output when duplicate
5176 short or long names are found.
5179 *) Changes needed for Tandem NSK.
5180 [Scott Uroff <scott@xypro.com>]
5182 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
5183 RSA_padding_check_SSLv23(), special padding was never detected
5184 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
5185 version rollback attacks was not effective.
5187 In s23_clnt.c, don't use special rollback-attack detection padding
5188 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
5189 client; similarly, in s23_srvr.c, don't do the rollback check if
5190 SSL 2.0 is the only protocol enabled in the server.
5193 *) Make it possible to get hexdumps of unprintable data with 'openssl
5194 asn1parse'. By implication, the functions ASN1_parse_dump() and
5195 BIO_dump_indent() are added.
5198 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
5199 these print out strings and name structures based on various
5200 flags including RFC2253 support and proper handling of
5201 multibyte characters. Added options to the 'x509' utility
5202 to allow the various flags to be set.
5205 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
5206 Also change the functions X509_cmp_current_time() and
5207 X509_gmtime_adj() work with an ASN1_TIME structure,
5208 this will enable certificates using GeneralizedTime in validity
5209 dates to be checked.
5212 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
5213 negative public key encodings) on by default,
5214 NO_NEG_PUBKEY_BUG can be set to disable it.
5217 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
5218 content octets. An i2c_ASN1_OBJECT is unnecessary because
5219 the encoding can be trivially obtained from the structure.
5222 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
5223 not read locks (CRYPTO_r_[un]lock).
5226 *) A first attempt at creating official support for shared
5227 libraries through configuration. I've kept it so the
5228 default is static libraries only, and the OpenSSL programs
5229 are always statically linked for now, but there are
5230 preparations for dynamic linking in place.
5231 This has been tested on Linux and Tru64.
5234 *) Randomness polling function for Win9x, as described in:
5235 Peter Gutmann, Software Generation of Practically Strong
5239 *) Fix so PRNG is seeded in req if using an already existing
5243 *) New options to smime application. -inform and -outform
5244 allow alternative formats for the S/MIME message including
5245 PEM and DER. The -content option allows the content to be
5246 specified separately. This should allow things like Netscape
5247 form signing output easier to verify.
5250 *) Fix the ASN1 encoding of tags using the 'long form'.
5253 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
5254 STRING types. These convert content octets to and from the
5255 underlying type. The actual tag and length octets are
5256 already assumed to have been read in and checked. These
5257 are needed because all other string types have virtually
5258 identical handling apart from the tag. By having versions
5259 of the ASN1 functions that just operate on content octets
5260 IMPLICIT tagging can be handled properly. It also allows
5261 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
5262 and ASN1_INTEGER are identical apart from the tag.
5265 *) Change the handling of OID objects as follows:
5267 - New object identifiers are inserted in objects.txt, following
5268 the syntax given in objects.README.
5269 - objects.pl is used to process obj_mac.num and create a new
5271 - obj_dat.pl is used to create a new obj_dat.h, using the data in
5274 This is currently kind of a hack, and the perl code in objects.pl
5275 isn't very elegant, but it works as I intended. The simplest way
5276 to check that it worked correctly is to look in obj_dat.h and
5277 check the array nid_objs and make sure the objects haven't moved
5278 around (this is important!). Additions are OK, as well as
5279 consistent name changes.
5282 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
5285 *) Addition of the command line parameter '-rand file' to 'openssl req'.
5286 The given file adds to whatever has already been seeded into the
5287 random pool through the RANDFILE configuration file option or
5288 environment variable, or the default random state file.
5291 *) mkstack.pl now sorts each macro group into lexical order.
5292 Previously the output order depended on the order the files
5293 appeared in the directory, resulting in needless rewriting
5297 *) Patches to make OpenSSL compile under Win32 again. Mostly
5298 work arounds for the VC++ problem that it treats func() as
5299 func(void). Also stripped out the parts of mkdef.pl that
5300 added extra typesafe functions: these no longer exist.
5303 *) Reorganisation of the stack code. The macros are now all
5304 collected in safestack.h . Each macro is defined in terms of
5305 a "stack macro" of the form SKM_<name>(type, a, b). The
5306 DEBUG_SAFESTACK is now handled in terms of function casts,
5307 this has the advantage of retaining type safety without the
5308 use of additional functions. If DEBUG_SAFESTACK is not defined
5309 then the non typesafe macros are used instead. Also modified the
5310 mkstack.pl script to handle the new form. Needs testing to see
5311 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
5312 the default if no major problems. Similar behaviour for ASN1_SET_OF
5313 and PKCS12_STACK_OF.
5316 *) When some versions of IIS use the 'NET' form of private key the
5317 key derivation algorithm is different. Normally MD5(password) is
5318 used as a 128 bit RC4 key. In the modified case
5319 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
5320 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
5321 as the old Netscape_RSA functions except they have an additional
5322 'sgckey' parameter which uses the modified algorithm. Also added
5323 an -sgckey command line option to the rsa utility. Thanks to
5324 Adrian Peck <bertie@ncipher.com> for posting details of the modified
5325 algorithm to openssl-dev.
5328 *) The evp_local.h macros were using 'c.##kname' which resulted in
5329 invalid expansion on some systems (SCO 5.0.5 for example).
5330 Corrected to 'c.kname'.
5331 [Phillip Porch <root@theporch.com>]
5333 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
5334 a STACK of email addresses from a certificate or request, these look
5335 in the subject name and the subject alternative name extensions and
5336 omit any duplicate addresses.
5339 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
5340 This makes DSA verification about 2 % faster.
5343 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
5344 (meaning that now 2^5 values will be precomputed, which is only 4 KB
5345 plus overhead for 1024 bit moduli).
5346 This makes exponentiations about 0.5 % faster for 1024 bit
5347 exponents (as measured by "openssl speed rsa2048").
5350 *) Rename memory handling macros to avoid conflicts with other
5352 Malloc => OPENSSL_malloc
5353 Malloc_locked => OPENSSL_malloc_locked
5354 Realloc => OPENSSL_realloc
5355 Free => OPENSSL_free
5358 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
5359 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
5362 *) CygWin32 support.
5363 [John Jarvie <jjarvie@newsguy.com>]
5365 *) The type-safe stack code has been rejigged. It is now only compiled
5366 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
5367 by default all type-specific stack functions are "#define"d back to
5368 standard stack functions. This results in more streamlined output
5369 but retains the type-safety checking possibilities of the original
5373 *) The STACK code has been cleaned up, and certain type declarations
5374 that didn't make a lot of sense have been brought in line. This has
5375 also involved a cleanup of sorts in safestack.h to more correctly
5376 map type-safe stack functions onto their plain stack counterparts.
5377 This work has also resulted in a variety of "const"ifications of
5378 lots of the code, especially "_cmp" operations which should normally
5379 be prototyped with "const" parameters anyway.
5382 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
5383 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
5384 (The PRNG state consists of two parts, the large pool 'state' and 'md',
5385 where all of 'md' is used each time the PRNG is used, but 'state'
5386 is used only indexed by a cyclic counter. As entropy may not be
5387 well distributed from the beginning, 'md' is important as a
5388 chaining variable. However, the output function chains only half
5389 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
5390 all of 'md', and seeding with STATE_SIZE dummy bytes will result
5391 in all of 'state' being rewritten, with the new values depending
5392 on virtually all of 'md'. This overcomes the 80 bit limitation.)
5395 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
5396 the handshake is continued after ssl_verify_cert_chain();
5397 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
5398 can lead to 'unexplainable' connection aborts later.
5399 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
5401 *) Major EVP API cipher revision.
5402 Add hooks for extra EVP features. This allows various cipher
5403 parameters to be set in the EVP interface. Support added for variable
5404 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
5405 setting of RC2 and RC5 parameters.
5407 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
5410 Remove lots of duplicated code from the EVP library. For example *every*
5411 cipher init() function handles the 'iv' in the same way according to the
5412 cipher mode. They also all do nothing if the 'key' parameter is NULL and
5413 for CFB and OFB modes they zero ctx->num.
5415 New functionality allows removal of S/MIME code RC2 hack.
5417 Most of the routines have the same form and so can be declared in terms
5420 By shifting this to the top level EVP_CipherInit() it can be removed from
5421 all individual ciphers. If the cipher wants to handle IVs or keys
5422 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
5425 Change lots of functions like EVP_EncryptUpdate() to now return a
5426 value: although software versions of the algorithms cannot fail
5427 any installed hardware versions can.
5430 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
5431 this option is set, tolerate broken clients that send the negotiated
5432 protocol version number instead of the requested protocol version
5436 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
5437 i.e. non-zero for export ciphersuites, zero otherwise.
5438 Previous versions had this flag inverted, inconsistent with
5439 rsa_tmp_cb (..._TMP_RSA_CB).
5440 [Bodo Moeller; problem reported by Amit Chopra]
5442 *) Add missing DSA library text string. Work around for some IIS
5443 key files with invalid SEQUENCE encoding.
5446 *) Add a document (doc/standards.txt) that list all kinds of standards
5447 and so on that are implemented in OpenSSL.
5450 *) Enhance c_rehash script. Old version would mishandle certificates
5451 with the same subject name hash and wouldn't handle CRLs at all.
5452 Added -fingerprint option to crl utility, to support new c_rehash
5456 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
5459 *) Fix for SSL server purpose checking. Server checking was
5460 rejecting certificates which had extended key usage present
5461 but no ssl client purpose.
5462 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
5464 *) Make PKCS#12 code work with no password. The PKCS#12 spec
5465 is a little unclear about how a blank password is handled.
5466 Since the password in encoded as a BMPString with terminating
5467 double NULL a zero length password would end up as just the
5468 double NULL. However no password at all is different and is
5469 handled differently in the PKCS#12 key generation code. NS
5470 treats a blank password as zero length. MSIE treats it as no
5471 password on export: but it will try both on import. We now do
5472 the same: PKCS12_parse() tries zero length and no password if
5473 the password is set to "" or NULL (NULL is now a valid password:
5474 it wasn't before) as does the pkcs12 application.
5477 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
5478 perror when PEM_read_bio_X509_REQ fails, the error message must
5479 be obtained from the error queue.
5482 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
5483 it in ERR_remove_state if appropriate, and change ERR_get_state
5484 accordingly to avoid race conditions (this is necessary because
5485 thread_hash is no longer constant once set).
5488 *) Bugfix for linux-elf makefile.one.
5491 *) RSA_get_default_method() will now cause a default
5492 RSA_METHOD to be chosen if one doesn't exist already.
5493 Previously this was only set during a call to RSA_new()
5494 or RSA_new_method(NULL) meaning it was possible for
5495 RSA_get_default_method() to return NULL.
5498 *) Added native name translation to the existing DSO code
5499 that will convert (if the flag to do so is set) filenames
5500 that are sufficiently small and have no path information
5501 into a canonical native form. Eg. "blah" converted to
5502 "libblah.so" or "blah.dll" etc.
5505 *) New function ERR_error_string_n(e, buf, len) which is like
5506 ERR_error_string(e, buf), but writes at most 'len' bytes
5507 including the 0 terminator. For ERR_error_string_n, 'buf'
5509 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
5511 *) CONF library reworked to become more general. A new CONF
5512 configuration file reader "class" is implemented as well as a
5513 new functions (NCONF_*, for "New CONF") to handle it. The now
5514 old CONF_* functions are still there, but are reimplemented to
5515 work in terms of the new functions. Also, a set of functions
5516 to handle the internal storage of the configuration data is
5517 provided to make it easier to write new configuration file
5518 reader "classes" (I can definitely see something reading a
5519 configuration file in XML format, for example), called _CONF_*,
5520 or "the configuration storage API"...
5522 The new configuration file reading functions are:
5524 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
5525 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
5527 NCONF_default, NCONF_WIN32
5529 NCONF_dump_fp, NCONF_dump_bio
5531 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
5532 NCONF_new creates a new CONF object. This works in the same way
5533 as other interfaces in OpenSSL, like the BIO interface.
5534 NCONF_dump_* dump the internal storage of the configuration file,
5535 which is useful for debugging. All other functions take the same
5536 arguments as the old CONF_* functions wth the exception of the
5537 first that must be a `CONF *' instead of a `LHASH *'.
5539 To make it easer to use the new classes with the old CONF_* functions,
5540 the function CONF_set_default_method is provided.
5543 *) Add '-tls1' option to 'openssl ciphers', which was already
5544 mentioned in the documentation but had not been implemented.
5545 (This option is not yet really useful because even the additional
5546 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
5549 *) Initial DSO code added into libcrypto for letting OpenSSL (and
5550 OpenSSL-based applications) load shared libraries and bind to
5551 them in a portable way.
5552 [Geoff Thorpe, with contributions from Richard Levitte]
5554 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
5556 *) Make sure _lrotl and _lrotr are only used with MSVC.
5558 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
5559 (the default implementation of RAND_status).
5561 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
5562 to '-clrext' (= clear extensions), as intended and documented.
5563 [Bodo Moeller; inconsistency pointed out by Michael Attili
5566 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
5567 was larger than the MD block size.
5568 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
5570 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
5571 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
5572 using the passed key: if the passed key was a private key the result
5573 of X509_print(), for example, would be to print out all the private key
5577 *) des_quad_cksum() byte order bug fix.
5578 [Ulf Möller, using the problem description in krb4-0.9.7, where
5579 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
5581 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
5583 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
5585 *) For easily testing in shell scripts whether some command
5586 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
5587 returns with exit code 0 iff no command of the given name is available.
5588 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
5589 the output goes to stdout and nothing is printed to stderr.
5590 Additional arguments are always ignored.
5592 Since for each cipher there is a command of the same name,
5593 the 'no-cipher' compilation switches can be tested this way.
5595 ('openssl no-XXX' is not able to detect pseudo-commands such
5596 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
5599 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
5602 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
5603 is set; it will be thrown away anyway because each handshake creates
5605 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
5606 to parameters -- in previous versions (since OpenSSL 0.9.3) the
5607 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
5608 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
5611 *) New s_client option -ign_eof: EOF at stdin is ignored, and
5612 'Q' and 'R' lose their special meanings (quit/renegotiate).
5613 This is part of what -quiet does; unlike -quiet, -ign_eof
5614 does not suppress any output.
5617 *) Add compatibility options to the purpose and trust code. The
5618 purpose X509_PURPOSE_ANY is "any purpose" which automatically
5619 accepts a certificate or CA, this was the previous behaviour,
5620 with all the associated security issues.
5622 X509_TRUST_COMPAT is the old trust behaviour: only and
5623 automatically trust self signed roots in certificate store. A
5624 new trust setting X509_TRUST_DEFAULT is used to specify that
5625 a purpose has no associated trust setting and it should instead
5626 use the value in the default purpose.
5629 *) Fix the PKCS#8 DSA private key code so it decodes keys again
5630 and fix a memory leak.
5633 *) In util/mkerr.pl (which implements 'make errors'), preserve
5634 reason strings from the previous version of the .c file, as
5635 the default to have only downcase letters (and digits) in
5636 automatically generated reasons codes is not always appropriate.
5639 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
5640 using strerror. Previously, ERR_reason_error_string() returned
5641 library names as reason strings for SYSerr; but SYSerr is a special
5642 case where small numbers are errno values, not library numbers.
5645 *) Add '-dsaparam' option to 'openssl dhparam' application. This
5646 converts DSA parameters into DH parameters. (When creating parameters,
5647 DSA_generate_parameters is used.)
5650 *) Include 'length' (recommended exponent length) in C code generated
5651 by 'openssl dhparam -C'.
5654 *) The second argument to set_label in perlasm was already being used
5655 so couldn't be used as a "file scope" flag. Moved to third argument
5659 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
5660 instead of RAND_bytes for encryption IVs and salts.
5663 *) Include RAND_status() into RAND_METHOD instead of implementing
5664 it only for md_rand.c Otherwise replacing the PRNG by calling
5665 RAND_set_rand_method would be impossible.
5668 *) Don't let DSA_generate_key() enter an infinite loop if the random
5669 number generation fails.
5672 *) New 'rand' application for creating pseudo-random output.
5675 *) Added configuration support for Linux/IA64
5676 [Rolf Haberrecker <rolf@suse.de>]
5678 *) Assembler module support for Mingw32.
5681 *) Shared library support for HPUX (in shlib/).
5682 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
5684 *) Shared library support for Solaris gcc.
5685 [Lutz Behnke <behnke@trustcenter.de>]
5687 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
5689 *) PKCS7_encrypt() was adding text MIME headers twice because they
5690 were added manually and by SMIME_crlf_copy().
5693 *) In bntest.c don't call BN_rand with zero bits argument.
5694 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
5696 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
5697 case was implemented. This caused BN_div_recp() to fail occasionally.
5700 *) Add an optional second argument to the set_label() in the perl
5701 assembly language builder. If this argument exists and is set
5702 to 1 it signals that the assembler should use a symbol whose
5703 scope is the entire file, not just the current function. This
5704 is needed with MASM which uses the format label:: for this scope.
5705 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
5707 *) Change the ASN1 types so they are typedefs by default. Before
5708 almost all types were #define'd to ASN1_STRING which was causing
5709 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
5713 *) Change names of new functions to the new get1/get0 naming
5714 convention: After 'get1', the caller owns a reference count
5715 and has to call ..._free; 'get0' returns a pointer to some
5716 data structure without incrementing reference counters.
5717 (Some of the existing 'get' functions increment a reference
5718 counter, some don't.)
5719 Similarly, 'set1' and 'add1' functions increase reference
5720 counters or duplicate objects.
5723 *) Allow for the possibility of temp RSA key generation failure:
5724 the code used to assume it always worked and crashed on failure.
5727 *) Fix potential buffer overrun problem in BIO_printf().
5728 [Ulf Möller, using public domain code by Patrick Powell; problem
5729 pointed out by David Sacerdote <das33@cornell.edu>]
5731 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
5732 RAND_egd() and RAND_status(). In the command line application,
5733 the EGD socket can be specified like a seed file using RANDFILE
5737 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
5738 Some CAs (e.g. Verisign) distribute certificates in this form.
5741 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
5742 list to exclude them. This means that no special compilation option
5743 is needed to use anonymous DH: it just needs to be included in the
5747 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
5748 EVP_MD_type. The old functionality is available in a new macro called
5749 EVP_MD_md(). Change code that uses it and update docs.
5752 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
5753 where the 'void *' argument is replaced by a function pointer argument.
5754 Previously 'void *' was abused to point to functions, which works on
5755 many platforms, but is not correct. As these functions are usually
5756 called by macros defined in OpenSSL header files, most source code
5757 should work without changes.
5760 *) <openssl/opensslconf.h> (which is created by Configure) now contains
5761 sections with information on -D... compiler switches used for
5762 compiling the library so that applications can see them. To enable
5763 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
5764 must be defined. E.g.,
5765 #define OPENSSL_ALGORITHM_DEFINES
5766 #include <openssl/opensslconf.h>
5767 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
5768 [Richard Levitte, Ulf and Bodo Möller]
5770 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
5774 *) Change the 'other' type in certificate aux info to a STACK_OF
5775 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
5776 the required ASN1 format: arbitrary types determined by an OID.
5779 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
5780 argument to 'req'. This is not because the function is newer or
5781 better than others it just uses the work 'NEW' in the certificate
5782 request header lines. Some software needs this.
5785 *) Reorganise password command line arguments: now passwords can be
5786 obtained from various sources. Delete the PEM_cb function and make
5787 it the default behaviour: i.e. if the callback is NULL and the
5788 usrdata argument is not NULL interpret it as a null terminated pass
5789 phrase. If usrdata and the callback are NULL then the pass phrase
5790 is prompted for as usual.
5793 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
5794 the support is automatically enabled. The resulting binaries will
5795 autodetect the card and use it if present.
5796 [Ben Laurie and Compaq Inc.]
5798 *) Work around for Netscape hang bug. This sends certificate request
5799 and server done in one record. Since this is perfectly legal in the
5800 SSL/TLS protocol it isn't a "bug" option and is on by default. See
5801 the bugs/SSLv3 entry for more info.
5804 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
5807 *) Add -rand argument to smime and pkcs12 applications and read/write
5811 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
5814 *) Add command line password options to the remaining applications.
5817 *) Bug fix for BN_div_recp() for numerators with an even number of
5821 *) More tests in bntest.c, and changed test_bn output.
5824 *) ./config recognizes MacOS X now.
5827 *) Bug fix for BN_div() when the first words of num and divsor are
5828 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
5831 *) Add support for various broken PKCS#8 formats, and command line
5832 options to produce them.
5835 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
5836 get temporary BIGNUMs from a BN_CTX.
5839 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
5843 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
5844 include a #define from the old name to the new. The original intent
5845 was that statically linked binaries could for example just call
5846 SSLeay_add_all_ciphers() to just add ciphers to the table and not
5847 link with digests. This never worked becayse SSLeay_add_all_digests()
5848 and SSLeay_add_all_ciphers() were in the same source file so calling
5849 one would link with the other. They are now in separate source files.
5852 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
5855 *) Use a less unusual form of the Miller-Rabin primality test (it used
5856 a binary algorithm for exponentiation integrated into the Miller-Rabin
5857 loop, our standard modexp algorithms are faster).
5860 *) Support for the EBCDIC character set completed.
5861 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
5863 *) Source code cleanups: use const where appropriate, eliminate casts,
5864 use void * instead of char * in lhash.
5867 *) Bugfix: ssl3_send_server_key_exchange was not restartable
5868 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
5869 this the server could overwrite ephemeral keys that the client
5873 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
5874 using 50 iterations of the Rabin-Miller test.
5876 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
5877 iterations of the Rabin-Miller test as required by the appendix
5878 to FIPS PUB 186[-1]) instead of DSA_is_prime.
5879 As BN_is_prime_fasttest includes trial division, DSA parameter
5880 generation becomes much faster.
5882 This implies a change for the callback functions in DSA_is_prime
5883 and DSA_generate_parameters: The callback function is called once
5884 for each positive witness in the Rabin-Miller test, not just
5885 occasionally in the inner loop; and the parameters to the
5886 callback function now provide an iteration count for the outer
5887 loop rather than for the current invocation of the inner loop.
5888 DSA_generate_parameters additionally can call the callback
5889 function with an 'iteration count' of -1, meaning that a
5890 candidate has passed the trial division test (when q is generated
5891 from an application-provided seed, trial division is skipped).
5894 *) New function BN_is_prime_fasttest that optionally does trial
5895 division before starting the Rabin-Miller test and has
5896 an additional BN_CTX * argument (whereas BN_is_prime always
5897 has to allocate at least one BN_CTX).
5898 'callback(1, -1, cb_arg)' is called when a number has passed the
5899 trial division stage.
5902 *) Fix for bug in CRL encoding. The validity dates weren't being handled
5906 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
5909 *) New function BN_pseudo_rand().
5912 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
5913 bignum version of BN_from_montgomery() with the working code from
5914 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
5918 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
5919 made it impossible to use the same SSL_SESSION data structure in
5920 SSL2 clients in multiple threads.
5923 *) The return value of RAND_load_file() no longer counts bytes obtained
5924 by stat(). RAND_load_file(..., -1) is new and uses the complete file
5925 to seed the PRNG (previously an explicit byte count was required).
5926 [Ulf Möller, Bodo Möller]
5928 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
5929 used (char *) instead of (void *) and had casts all over the place.
5932 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
5935 *) Retain source code compatibility for BN_prime_checks macro:
5936 BN_is_prime(..., BN_prime_checks, ...) now uses
5937 BN_prime_checks_for_size to determine the appropriate number of
5938 Rabin-Miller iterations.
5941 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
5942 DH_CHECK_P_NOT_SAFE_PRIME.
5943 (Check if this is true? OpenPGP calls them "strong".)
5946 *) Merge the functionality of "dh" and "gendh" programs into a new program
5947 "dhparam". The old programs are retained for now but will handle DH keys
5948 (instead of parameters) in future.
5951 *) Make the ciphers, s_server and s_client programs check the return values
5952 when a new cipher list is set.
5955 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
5956 ciphers. Before when the 56bit ciphers were enabled the sorting was
5959 The syntax for the cipher sorting has been extended to support sorting by
5960 cipher-strength (using the strength_bits hard coded in the tables).
5961 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
5963 Fix a bug in the cipher-command parser: when supplying a cipher command
5964 string with an "undefined" symbol (neither command nor alphanumeric
5965 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
5966 an error is flagged.
5968 Due to the strength-sorting extension, the code of the
5969 ssl_create_cipher_list() function was completely rearranged. I hope that
5970 the readability was also increased :-)
5971 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5973 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
5974 for the first serial number and places 2 in the serial number file. This
5975 avoids problems when the root CA is created with serial number zero and
5976 the first user certificate has the same issuer name and serial number
5980 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
5981 the new code. Add documentation for this stuff.
5984 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
5985 X509_*() to X509at_*() on the grounds that they don't handle X509
5986 structures and behave in an analagous way to the X509v3 functions:
5987 they shouldn't be called directly but wrapper functions should be used
5990 So we also now have some wrapper functions that call the X509at functions
5991 when passed certificate requests. (TO DO: similar things can be done with
5992 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
5993 things. Some of these need some d2i or i2d and print functionality
5994 because they handle more complex structures.)
5997 *) Add missing #ifndefs that caused missing symbols when building libssl
5998 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
5999 NO_RSA in ssl/s2*.c.
6000 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
6002 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
6003 has a return value which indicates the quality of the random data
6004 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
6005 error queue. New function RAND_pseudo_bytes() generates output that is
6006 guaranteed to be unique but not unpredictable. RAND_add is like
6007 RAND_seed, but takes an extra argument for an entropy estimate
6008 (RAND_seed always assumes full entropy).
6011 *) Do more iterations of Rabin-Miller probable prime test (specifically,
6012 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
6013 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
6014 in crypto/bn/bn_prime.c for the complete table). This guarantees a
6015 false-positive rate of at most 2^-80 for random input.
6018 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
6021 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
6022 in the 0.9.5 release), this returns the chain
6023 from an X509_CTX structure with a dup of the stack and all
6024 the X509 reference counts upped: so the stack will exist
6025 after X509_CTX_cleanup() has been called. Modify pkcs12.c
6028 Also make SSL_SESSION_print() print out the verify return
6032 *) Add manpage for the pkcs12 command. Also change the default
6033 behaviour so MAC iteration counts are used unless the new
6034 -nomaciter option is used. This improves file security and
6035 only older versions of MSIE (4.0 for example) need it.
6038 *) Honor the no-xxx Configure options when creating .DEF files.
6041 *) Add PKCS#10 attributes to field table: challengePassword,
6042 unstructuredName and unstructuredAddress. These are taken from
6043 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
6044 international characters are used.
6046 More changes to X509_ATTRIBUTE code: allow the setting of types
6047 based on strings. Remove the 'loc' parameter when adding
6048 attributes because these will be a SET OF encoding which is sorted
6052 *) Initial changes to the 'req' utility to allow request generation
6053 automation. This will allow an application to just generate a template
6054 file containing all the field values and have req construct the
6057 Initial support for X509_ATTRIBUTE handling. Stacks of these are
6058 used all over the place including certificate requests and PKCS#7
6059 structures. They are currently handled manually where necessary with
6060 some primitive wrappers for PKCS#7. The new functions behave in a
6061 manner analogous to the X509 extension functions: they allow
6062 attributes to be looked up by NID and added.
6064 Later something similar to the X509V3 code would be desirable to
6065 automatically handle the encoding, decoding and printing of the
6066 more complex types. The string types like challengePassword can
6067 be handled by the string table functions.
6069 Also modified the multi byte string table handling. Now there is
6070 a 'global mask' which masks out certain types. The table itself
6071 can use the flag STABLE_NO_MASK to ignore the mask setting: this
6072 is useful when for example there is only one permissible type
6073 (as in countryName) and using the mask might result in no valid
6077 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
6078 SSL_get_peer_finished to allow applications to obtain the latest
6079 Finished messages sent to the peer or expected from the peer,
6080 respectively. (SSL_get_peer_finished is usually the Finished message
6081 actually received from the peer, otherwise the protocol will be aborted.)
6083 As the Finished message are message digests of the complete handshake
6084 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
6085 be used for external authentication procedures when the authentication
6086 provided by SSL/TLS is not desired or is not enough.
6089 *) Enhanced support for Alpha Linux is added. Now ./config checks if
6090 the host supports BWX extension and if Compaq C is present on the
6091 $PATH. Just exploiting of the BWX extension results in 20-30%
6092 performance kick for some algorithms, e.g. DES and RC4 to mention
6093 a couple. Compaq C in turn generates ~20% faster code for MD5 and
6097 *) Add support for MS "fast SGC". This is arguably a violation of the
6098 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
6099 weak crypto and after checking the certificate is SGC a second one
6100 with strong crypto. MS SGC stops the first handshake after receiving
6101 the server certificate message and sends a second client hello. Since
6102 a server will typically do all the time consuming operations before
6103 expecting any further messages from the client (server key exchange
6104 is the most expensive) there is little difference between the two.
6106 To get OpenSSL to support MS SGC we have to permit a second client
6107 hello message after we have sent server done. In addition we have to
6108 reset the MAC if we do get this second client hello.
6111 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
6112 if a DER encoded private key is RSA or DSA traditional format. Changed
6113 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
6114 format DER encoded private key. Newer code should use PKCS#8 format which
6115 has the key type encoded in the ASN1 structure. Added DER private key
6116 support to pkcs8 application.
6119 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
6120 ciphersuites has been selected (as required by the SSL 3/TLS 1
6121 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
6122 is set, we interpret this as a request to violate the specification
6123 (the worst that can happen is a handshake failure, and 'correct'
6124 behaviour would result in a handshake failure anyway).
6127 *) In SSL_CTX_add_session, take into account that there might be multiple
6128 SSL_SESSION structures with the same session ID (e.g. when two threads
6129 concurrently obtain them from an external cache).
6130 The internal cache can handle only one SSL_SESSION with a given ID,
6131 so if there's a conflict, we now throw out the old one to achieve
6135 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
6136 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
6137 some routines that use cipher OIDs: some ciphers do not have OIDs
6138 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
6142 *) Simplify the trust setting structure and code. Now we just have
6143 two sequences of OIDs for trusted and rejected settings. These will
6144 typically have values the same as the extended key usage extension
6145 and any application specific purposes.
6147 The trust checking code now has a default behaviour: it will just
6148 check for an object with the same NID as the passed id. Functions can
6149 be provided to override either the default behaviour or the behaviour
6150 for a given id. SSL client, server and email already have functions
6151 in place for compatibility: they check the NID and also return "trusted"
6152 if the certificate is self signed.
6155 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
6156 traditional format into an EVP_PKEY structure.
6159 *) Add a password callback function PEM_cb() which either prompts for
6160 a password if usr_data is NULL or otherwise assumes it is a null
6161 terminated password. Allow passwords to be passed on command line
6162 environment or config files in a few more utilities.
6165 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
6166 keys. Add some short names for PKCS#8 PBE algorithms and allow them
6167 to be specified on the command line for the pkcs8 and pkcs12 utilities.
6168 Update documentation.
6171 *) Support for ASN1 "NULL" type. This could be handled before by using
6172 ASN1_TYPE but there wasn't any function that would try to read a NULL
6173 and produce an error if it couldn't. For compatibility we also have
6174 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
6175 don't allocate anything because they don't need to.
6178 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
6180 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
6182 *) Rebuild of the memory allocation routines used by OpenSSL code and
6183 possibly others as well. The purpose is to make an interface that
6184 provide hooks so anyone can build a separate set of allocation and
6185 deallocation routines to be used by OpenSSL, for example memory
6186 pool implementations, or something else, which was previously hard
6187 since Malloc(), Realloc() and Free() were defined as macros having
6188 the values malloc, realloc and free, respectively (except for Win32
6189 compilations). The same is provided for memory debugging code.
6190 OpenSSL already comes with functionality to find memory leaks, but
6191 this gives people a chance to debug other memory problems.
6193 With these changes, a new set of functions and macros have appeared:
6195 CRYPTO_set_mem_debug_functions() [F]
6196 CRYPTO_get_mem_debug_functions() [F]
6197 CRYPTO_dbg_set_options() [F]
6198 CRYPTO_dbg_get_options() [F]
6199 CRYPTO_malloc_debug_init() [M]
6201 The memory debug functions are NULL by default, unless the library
6202 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
6203 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
6204 gives the standard debugging functions that come with OpenSSL) or
6205 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
6206 provided by the library user) must be used. When the standard
6207 debugging functions are used, CRYPTO_dbg_set_options can be used to
6208 request additional information:
6209 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
6210 the CRYPTO_MDEBUG_xxx macro when compiling the library.
6212 Also, things like CRYPTO_set_mem_functions will always give the
6213 expected result (the new set of functions is used for allocation
6214 and deallocation) at all times, regardless of platform and compiler
6217 To finish it up, some functions that were never use in any other
6218 way than through macros have a new API and new semantic:
6221 CRYPTO_dbg_realloc()
6224 All macros of value have retained their old syntax.
6225 [Richard Levitte and Bodo Moeller]
6227 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
6228 ordering of SMIMECapabilities wasn't in "strength order" and there
6229 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
6233 *) Some ASN1 types with illegal zero length encoding (INTEGER,
6234 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
6235 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
6237 *) Merge in my S/MIME library for OpenSSL. This provides a simple
6238 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
6239 functionality to handle multipart/signed properly) and a utility
6240 called 'smime' to call all this stuff. This is based on code I
6241 originally wrote for Celo who have kindly allowed it to be
6242 included in OpenSSL.
6245 *) Add variants des_set_key_checked and des_set_key_unchecked of
6246 des_set_key (aka des_key_sched). Global variable des_check_key
6247 decides which of these is called by des_set_key; this way
6248 des_check_key behaves as it always did, but applications and
6249 the library itself, which was buggy for des_check_key == 1,
6250 have a cleaner way to pick the version they need.
6253 *) New function PKCS12_newpass() which changes the password of a
6257 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
6258 dynamic mix. In both cases the ids can be used as an index into the
6259 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
6260 functions so they accept a list of the field values and the
6261 application doesn't need to directly manipulate the X509_TRUST
6265 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
6269 *) Modify the way the V3 extension code looks up extensions. This now
6270 works in a similar way to the object code: we have some "standard"
6271 extensions in a static table which is searched with OBJ_bsearch()
6272 and the application can add dynamic ones if needed. The file
6273 crypto/x509v3/ext_dat.h now has the info: this file needs to be
6274 updated whenever a new extension is added to the core code and kept
6275 in ext_nid order. There is a simple program 'tabtest.c' which checks
6276 this. New extensions are not added too often so this file can readily
6277 be maintained manually.
6279 There are two big advantages in doing things this way. The extensions
6280 can be looked up immediately and no longer need to be "added" using
6281 X509V3_add_standard_extensions(): this function now does nothing.
6282 [Side note: I get *lots* of email saying the extension code doesn't
6283 work because people forget to call this function]
6284 Also no dynamic allocation is done unless new extensions are added:
6285 so if we don't add custom extensions there is no need to call
6286 X509V3_EXT_cleanup().
6289 *) Modify enc utility's salting as follows: make salting the default. Add a
6290 magic header, so unsalted files fail gracefully instead of just decrypting
6291 to garbage. This is because not salting is a big security hole, so people
6292 should be discouraged from doing it.
6295 *) Fixes and enhancements to the 'x509' utility. It allowed a message
6296 digest to be passed on the command line but it only used this
6297 parameter when signing a certificate. Modified so all relevant
6298 operations are affected by the digest parameter including the
6299 -fingerprint and -x509toreq options. Also -x509toreq choked if a
6300 DSA key was used because it didn't fix the digest.
6303 *) Initial certificate chain verify code. Currently tests the untrusted
6304 certificates for consistency with the verify purpose (which is set
6305 when the X509_STORE_CTX structure is set up) and checks the pathlength.
6307 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
6308 this is because it will reject chains with invalid extensions whereas
6309 every previous version of OpenSSL and SSLeay made no checks at all.
6311 Trust code: checks the root CA for the relevant trust settings. Trust
6312 settings have an initial value consistent with the verify purpose: e.g.
6313 if the verify purpose is for SSL client use it expects the CA to be
6314 trusted for SSL client use. However the default value can be changed to
6315 permit custom trust settings: one example of this would be to only trust
6316 certificates from a specific "secure" set of CAs.
6318 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
6319 which should be used for version portability: especially since the
6320 verify structure is likely to change more often now.
6322 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
6323 to set them. If not set then assume SSL clients will verify SSL servers
6326 Two new options to the verify program: -untrusted allows a set of
6327 untrusted certificates to be passed in and -purpose which sets the
6328 intended purpose of the certificate. If a purpose is set then the
6329 new chain verify code is used to check extension consistency.
6332 *) Support for the authority information access extension.
6335 *) Modify RSA and DSA PEM read routines to transparently handle
6336 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
6337 public keys in a format compatible with certificate
6338 SubjectPublicKeyInfo structures. Unfortunately there were already
6339 functions called *_PublicKey_* which used various odd formats so
6340 these are retained for compatibility: however the DSA variants were
6341 never in a public release so they have been deleted. Changed dsa/rsa
6342 utilities to handle the new format: note no releases ever handled public
6343 keys so we should be OK.
6345 The primary motivation for this change is to avoid the same fiasco
6346 that dogs private keys: there are several incompatible private key
6347 formats some of which are standard and some OpenSSL specific and
6348 require various evil hacks to allow partial transparent handling and
6349 even then it doesn't work with DER formats. Given the option anything
6350 other than PKCS#8 should be dumped: but the other formats have to
6351 stay in the name of compatibility.
6353 With public keys and the benefit of hindsight one standard format
6354 is used which works with EVP_PKEY, RSA or DSA structures: though
6355 it clearly returns an error if you try to read the wrong kind of key.
6357 Added a -pubkey option to the 'x509' utility to output the public key.
6358 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
6359 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
6360 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
6361 that do the same as the EVP_PKEY_assign_*() except they up the
6362 reference count of the added key (they don't "swallow" the
6366 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
6367 CRLs would fail if the file contained no certificates or no CRLs:
6368 added a new function to read in both types and return the number
6369 read: this means that if none are read it will be an error. The
6370 DER versions of the certificate and CRL reader would always fail
6371 because it isn't possible to mix certificates and CRLs in DER format
6372 without choking one or the other routine. Changed this to just read
6373 a certificate: this is the best we can do. Also modified the code
6374 in apps/verify.c to take notice of return codes: it was previously
6375 attempting to read in certificates from NULL pointers and ignoring
6376 any errors: this is one reason why the cert and CRL reader seemed
6377 to work. It doesn't check return codes from the default certificate
6378 routines: these may well fail if the certificates aren't installed.
6381 *) Code to support otherName option in GeneralName.
6384 *) First update to verify code. Change the verify utility
6385 so it warns if it is passed a self signed certificate:
6386 for consistency with the normal behaviour. X509_verify
6387 has been modified to it will now verify a self signed
6388 certificate if *exactly* the same certificate appears
6389 in the store: it was previously impossible to trust a
6390 single self signed certificate. This means that:
6391 openssl verify ss.pem
6392 now gives a warning about a self signed certificate but
6393 openssl verify -CAfile ss.pem ss.pem
6397 *) For servers, store verify_result in SSL_SESSION data structure
6398 (and add it to external session representation).
6399 This is needed when client certificate verifications fails,
6400 but an application-provided verification callback (set by
6401 SSL_CTX_set_cert_verify_callback) allows accepting the session
6402 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
6403 but returns 1): When the session is reused, we have to set
6404 ssl->verify_result to the appropriate error code to avoid
6406 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
6408 *) Fix a bug in the new PKCS#7 code: it didn't consider the
6409 case in PKCS7_dataInit() where the signed PKCS7 structure
6410 didn't contain any existing data because it was being created.
6411 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
6413 *) Add a salt to the key derivation routines in enc.c. This
6414 forms the first 8 bytes of the encrypted file. Also add a
6415 -S option to allow a salt to be input on the command line.
6418 *) New function X509_cmp(). Oddly enough there wasn't a function
6419 to compare two certificates. We do this by working out the SHA1
6420 hash and comparing that. X509_cmp() will be needed by the trust
6424 *) SSL_get1_session() is like SSL_get_session(), but increments
6425 the reference count in the SSL_SESSION returned.
6426 [Geoff Thorpe <geoff@eu.c2.net>]
6428 *) Fix for 'req': it was adding a null to request attributes.
6429 Also change the X509_LOOKUP and X509_INFO code to handle
6430 certificate auxiliary information.
6433 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
6437 *) Add the possibility to add extra information to the memory leak
6438 detecting output, to form tracebacks, showing from where each
6439 allocation was originated: CRYPTO_push_info("constant string") adds
6440 the string plus current file name and line number to a per-thread
6441 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
6442 is like calling CYRPTO_pop_info() until the stack is empty.
6443 Also updated memory leak detection code to be multi-thread-safe.
6446 *) Add options -text and -noout to pkcs7 utility and delete the
6447 encryption options which never did anything. Update docs.
6450 *) Add options to some of the utilities to allow the pass phrase
6451 to be included on either the command line (not recommended on
6452 OSes like Unix) or read from the environment. Update the
6453 manpages and fix a few bugs.
6456 *) Add a few manpages for some of the openssl commands.
6459 *) Fix the -revoke option in ca. It was freeing up memory twice,
6460 leaking and not finding already revoked certificates.
6463 *) Extensive changes to support certificate auxiliary information.
6464 This involves the use of X509_CERT_AUX structure and X509_AUX
6465 functions. An X509_AUX function such as PEM_read_X509_AUX()
6466 can still read in a certificate file in the usual way but it
6467 will also read in any additional "auxiliary information". By
6468 doing things this way a fair degree of compatibility can be
6469 retained: existing certificates can have this information added
6470 using the new 'x509' options.
6472 Current auxiliary information includes an "alias" and some trust
6473 settings. The trust settings will ultimately be used in enhanced
6474 certificate chain verification routines: currently a certificate
6475 can only be trusted if it is self signed and then it is trusted
6479 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
6480 The problem was that one of the replacement routines had not been working
6481 since SSLeay releases. For now the offending routine has been replaced
6482 with non-optimised assembler. Even so, this now gives around 95%
6483 performance improvement for 1024 bit RSA signs.
6486 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
6487 handling. Most clients have the effective key size in bits equal to
6488 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
6489 A few however don't do this and instead use the size of the decrypted key
6490 to determine the RC2 key length and the AlgorithmIdentifier to determine
6491 the effective key length. In this case the effective key length can still
6492 be 40 bits but the key length can be 168 bits for example. This is fixed
6493 by manually forcing an RC2 key into the EVP_PKEY structure because the
6494 EVP code can't currently handle unusual RC2 key sizes: it always assumes
6495 the key length and effective key length are equal.
6498 *) Add a bunch of functions that should simplify the creation of
6499 X509_NAME structures. Now you should be able to do:
6500 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
6501 and have it automatically work out the correct field type and fill in
6502 the structures. The more adventurous can try:
6503 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
6504 and it will (hopefully) work out the correct multibyte encoding.
6507 *) Change the 'req' utility to use the new field handling and multibyte
6508 copy routines. Before the DN field creation was handled in an ad hoc
6509 way in req, ca, and x509 which was rather broken and didn't support
6510 BMPStrings or UTF8Strings. Since some software doesn't implement
6511 BMPStrings or UTF8Strings yet, they can be enabled using the config file
6512 using the dirstring_type option. See the new comment in the default
6513 openssl.cnf for more info.
6516 *) Make crypto/rand/md_rand.c more robust:
6517 - Assure unique random numbers after fork().
6518 - Make sure that concurrent threads access the global counter and
6519 md serializably so that we never lose entropy in them
6520 or use exactly the same state in multiple threads.
6521 Access to the large state is not always serializable because
6522 the additional locking could be a performance killer, and
6523 md should be large enough anyway.
6526 *) New file apps/app_rand.c with commonly needed functionality
6527 for handling the random seed file.
6529 Use the random seed file in some applications that previously did not:
6531 dsaparam -genkey (which also ignored its '-rand' option),
6534 x509 (when signing).
6535 Except on systems with /dev/urandom, it is crucial to have a random
6536 seed file at least for key creation, DSA signing, and for DH exchanges;
6537 for RSA signatures we could do without one.
6539 gendh and gendsa (unlike genrsa) used to read only the first byte
6540 of each file listed in the '-rand' option. The function as previously
6541 found in genrsa is now in app_rand.c and is used by all programs
6542 that support '-rand'.
6545 *) In RAND_write_file, use mode 0600 for creating files;
6546 don't just chmod when it may be too late.
6549 *) Report an error from X509_STORE_load_locations
6550 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
6553 *) New function ASN1_mbstring_copy() this copies a string in either
6554 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
6555 into an ASN1_STRING type. A mask of permissible types is passed
6556 and it chooses the "minimal" type to use or an error if not type
6560 *) Add function equivalents to the various macros in asn1.h. The old
6561 macros are retained with an M_ prefix. Code inside the library can
6562 use the M_ macros. External code (including the openssl utility)
6563 should *NOT* in order to be "shared library friendly".
6566 *) Add various functions that can check a certificate's extensions
6567 to see if it usable for various purposes such as SSL client,
6568 server or S/MIME and CAs of these types. This is currently
6569 VERY EXPERIMENTAL but will ultimately be used for certificate chain
6570 verification. Also added a -purpose flag to x509 utility to
6571 print out all the purposes.
6574 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
6578 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
6579 for, obtain and decode and extension and obtain its critical flag.
6580 This allows all the necessary extension code to be handled in a
6581 single function call.
6584 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
6585 platforms. See crypto/rc4/rc4_enc.c for further details.
6588 *) New -noout option to asn1parse. This causes no output to be produced
6589 its main use is when combined with -strparse and -out to extract data
6590 from a file (which may not be in ASN.1 format).
6593 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
6594 when producing the local key id.
6595 [Richard Levitte <levitte@stacken.kth.se>]
6597 *) New option -dhparam in s_server. This allows a DH parameter file to be
6598 stated explicitly. If it is not stated then it tries the first server
6599 certificate file. The previous behaviour hard coded the filename
6603 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
6604 a public key to be input or output. For example:
6605 openssl rsa -in key.pem -pubout -out pubkey.pem
6606 Also added necessary DSA public key functions to handle this.
6609 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
6610 in the message. This was handled by allowing
6611 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
6612 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
6614 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
6615 to the end of the strings whereas this didn't. This would cause problems
6616 if strings read with d2i_ASN1_bytes() were later modified.
6617 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
6619 *) Fix for base64 decode bug. When a base64 bio reads only one line of
6620 data and it contains EOF it will end up returning an error. This is
6621 caused by input 46 bytes long. The cause is due to the way base64
6622 BIOs find the start of base64 encoded data. They do this by trying a
6623 trial decode on each line until they find one that works. When they
6624 do a flag is set and it starts again knowing it can pass all the
6625 data directly through the decoder. Unfortunately it doesn't reset
6626 the context it uses. This means that if EOF is reached an attempt
6627 is made to pass two EOFs through the context and this causes the
6628 resulting error. This can also cause other problems as well. As is
6629 usual with these problems it takes *ages* to find and the fix is
6630 trivial: move one line.
6631 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
6633 *) Ugly workaround to get s_client and s_server working under Windows. The
6634 old code wouldn't work because it needed to select() on sockets and the
6635 tty (for keypresses and to see if data could be written). Win32 only
6636 supports select() on sockets so we select() with a 1s timeout on the
6637 sockets and then see if any characters are waiting to be read, if none
6638 are present then we retry, we also assume we can always write data to
6639 the tty. This isn't nice because the code then blocks until we've
6640 received a complete line of data and it is effectively polling the
6641 keyboard at 1s intervals: however it's quite a bit better than not
6642 working at all :-) A dedicated Windows application might handle this
6643 with an event loop for example.
6646 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
6647 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
6648 will be called when RSA_sign() and RSA_verify() are used. This is useful
6649 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
6650 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
6651 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
6652 This necessitated the support of an extra signature type NID_md5_sha1
6653 for SSL signatures and modifications to the SSL library to use it instead
6654 of calling RSA_public_decrypt() and RSA_private_encrypt().
6657 *) Add new -verify -CAfile and -CApath options to the crl program, these
6658 will lookup a CRL issuers certificate and verify the signature in a
6659 similar way to the verify program. Tidy up the crl program so it
6660 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
6661 less strict. It will now permit CRL extensions even if it is not
6662 a V2 CRL: this will allow it to tolerate some broken CRLs.
6665 *) Initialize all non-automatic variables each time one of the openssl
6666 sub-programs is started (this is necessary as they may be started
6667 multiple times from the "OpenSSL>" prompt).
6668 [Lennart Bang, Bodo Moeller]
6670 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
6671 removing all other RSA functionality (this is what NO_RSA does). This
6672 is so (for example) those in the US can disable those operations covered
6673 by the RSA patent while allowing storage and parsing of RSA keys and RSA
6677 *) Non-copying interface to BIO pairs.
6678 (still largely untested)
6681 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
6682 ASCII string. This was handled independently in various places before.
6685 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
6686 UTF8 strings a character at a time.
6689 *) Use client_version from client hello to select the protocol
6690 (s23_srvr.c) and for RSA client key exchange verification
6691 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
6694 *) Add various utility functions to handle SPKACs, these were previously
6695 handled by poking round in the structure internals. Added new function
6696 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
6697 print, verify and generate SPKACs. Based on an original idea from
6698 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
6701 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
6704 *) Allow the config file extension section to be overwritten on the
6705 command line. Based on an original idea from Massimiliano Pala
6706 <madwolf@comune.modena.it>. The new option is called -extensions
6707 and can be applied to ca, req and x509. Also -reqexts to override
6708 the request extensions in req and -crlexts to override the crl extensions
6712 *) Add new feature to the SPKAC handling in ca. Now you can include
6713 the same field multiple times by preceding it by "XXXX." for example:
6716 this is the same syntax as used in the req config file.
6719 *) Allow certificate extensions to be added to certificate requests. These
6720 are specified in a 'req_extensions' option of the req section of the
6721 config file. They can be printed out with the -text option to req but
6722 are otherwise ignored at present.
6725 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
6726 data read consists of only the final block it would not decrypted because
6727 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
6728 A misplaced 'break' also meant the decrypted final block might not be
6729 copied until the next read.
6732 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
6733 a few extra parameters to the DH structure: these will be useful if
6734 for example we want the value of 'q' or implement X9.42 DH.
6737 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
6738 provides hooks that allow the default DSA functions or functions on a
6739 "per key" basis to be replaced. This allows hardware acceleration and
6740 hardware key storage to be handled without major modification to the
6741 library. Also added low level modexp hooks and CRYPTO_EX structure and
6742 associated functions.
6745 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
6746 as "read only": it can't be written to and the buffer it points to will
6747 not be freed. Reading from a read only BIO is much more efficient than
6748 a normal memory BIO. This was added because there are several times when
6749 an area of memory needs to be read from a BIO. The previous method was
6750 to create a memory BIO and write the data to it, this results in two
6751 copies of the data and an O(n^2) reading algorithm. There is a new
6752 function BIO_new_mem_buf() which creates a read only memory BIO from
6753 an area of memory. Also modified the PKCS#7 routines to use read only
6757 *) Bugfix: ssl23_get_client_hello did not work properly when called in
6758 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
6759 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
6760 but a retry condition occured while trying to read the rest.
6763 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
6764 NID_pkcs7_encrypted by default: this was wrong since this should almost
6765 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
6766 the encrypted data type: this is a more sensible place to put it and it
6767 allows the PKCS#12 code to be tidied up that duplicated this
6771 *) Changed obj_dat.pl script so it takes its input and output files on
6772 the command line. This should avoid shell escape redirection problems
6776 *) Initial support for certificate extension requests, these are included
6777 in things like Xenroll certificate requests. Included functions to allow
6778 extensions to be obtained and added.
6781 *) -crlf option to s_client and s_server for sending newlines as
6782 CRLF (as required by many protocols).
6785 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
6787 *) Install libRSAglue.a when OpenSSL is built with RSAref.
6788 [Ralf S. Engelschall]
6790 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
6791 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
6793 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
6797 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
6798 DH parameters/keys (q is lost during that conversion, but the resulting
6799 DH parameters contain its length).
6801 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
6802 much faster than DH_generate_parameters (which creates parameters
6803 where p = 2*q + 1), and also the smaller q makes DH computations
6804 much more efficient (160-bit exponentiation instead of 1024-bit
6805 exponentiation); so this provides a convenient way to support DHE
6806 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
6807 utter importance to use
6808 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6810 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6811 when such DH parameters are used, because otherwise small subgroup
6812 attacks may become possible!
6815 *) Avoid memory leak in i2d_DHparams.
6818 *) Allow the -k option to be used more than once in the enc program:
6819 this allows the same encrypted message to be read by multiple recipients.
6822 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
6823 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
6824 it will always use the numerical form of the OID, even if it has a short
6828 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
6829 method only got called if p,q,dmp1,dmq1,iqmp components were present,
6830 otherwise bn_mod_exp was called. In the case of hardware keys for example
6831 no private key components need be present and it might store extra data
6832 in the RSA structure, which cannot be accessed from bn_mod_exp.
6833 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
6834 private key operations.
6837 *) Added support for SPARC Linux.
6840 *) pem_password_cb function type incompatibly changed from
6841 typedef int pem_password_cb(char *buf, int size, int rwflag);
6843 ....(char *buf, int size, int rwflag, void *userdata);
6844 so that applications can pass data to their callbacks:
6845 The PEM[_ASN1]_{read,write}... functions and macros now take an
6846 additional void * argument, which is just handed through whenever
6847 the password callback is called.
6848 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
6850 New function SSL_CTX_set_default_passwd_cb_userdata.
6852 Compatibility note: As many C implementations push function arguments
6853 onto the stack in reverse order, the new library version is likely to
6854 interoperate with programs that have been compiled with the old
6855 pem_password_cb definition (PEM_whatever takes some data that
6856 happens to be on the stack as its last argument, and the callback
6857 just ignores this garbage); but there is no guarantee whatsoever that
6860 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
6861 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
6862 problems not only on Windows, but also on some Unix platforms.
6863 To avoid problematic command lines, these definitions are now in an
6864 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
6865 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
6868 *) MIPS III/IV assembler module is reimplemented.
6871 *) More DES library cleanups: remove references to srand/rand and
6872 delete an unused file.
6875 *) Add support for the the free Netwide assembler (NASM) under Win32,
6876 since not many people have MASM (ml) and it can be hard to obtain.
6877 This is currently experimental but it seems to work OK and pass all
6878 the tests. Check out INSTALL.W32 for info.
6881 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
6882 without temporary keys kept an extra copy of the server key,
6883 and connections with temporary keys did not free everything in case
6887 *) New function RSA_check_key and new openssl rsa option -check
6888 for verifying the consistency of RSA keys.
6889 [Ulf Moeller, Bodo Moeller]
6891 *) Various changes to make Win32 compile work:
6892 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
6893 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
6894 comparison" warnings.
6895 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
6898 *) Add a debugging option to PKCS#5 v2 key generation function: when
6899 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
6900 derived keys are printed to stderr.
6903 *) Copy the flags in ASN1_STRING_dup().
6904 [Roman E. Pavlov <pre@mo.msk.ru>]
6906 *) The x509 application mishandled signing requests containing DSA
6907 keys when the signing key was also DSA and the parameters didn't match.
6909 It was supposed to omit the parameters when they matched the signing key:
6910 the verifying software was then supposed to automatically use the CA's
6911 parameters if they were absent from the end user certificate.
6913 Omitting parameters is no longer recommended. The test was also
6914 the wrong way round! This was probably due to unusual behaviour in
6915 EVP_cmp_parameters() which returns 1 if the parameters match.
6916 This meant that parameters were omitted when they *didn't* match and
6917 the certificate was useless. Certificates signed with 'ca' didn't have
6919 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
6921 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
6922 The interface is as follows:
6923 Applications can use
6924 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
6925 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
6926 "off" is now the default.
6927 The library internally uses
6928 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
6929 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
6930 to disable memory-checking temporarily.
6932 Some inconsistent states that previously were possible (and were
6933 even the default) are now avoided.
6935 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
6936 with each memory chunk allocated; this is occasionally more helpful
6937 than just having a counter.
6939 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
6941 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
6945 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
6946 which largely parallels "options", but is for changing API behaviour,
6947 whereas "options" are about protocol behaviour.
6948 Initial "mode" flags are:
6950 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
6951 a single record has been written.
6952 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
6953 retries use the same buffer location.
6954 (But all of the contents must be
6958 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
6961 *) Fix problems with no-hmac etc.
6962 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
6964 *) New functions RSA_get_default_method(), RSA_set_method() and
6965 RSA_get_method(). These allows replacement of RSA_METHODs without having
6966 to mess around with the internals of an RSA structure.
6969 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
6970 Also really enable memory leak checks in openssl.c and in some
6972 [Chad C. Mulligan, Bodo Moeller]
6974 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
6975 up the length of negative integers. This has now been simplified to just
6976 store the length when it is first determined and use it later, rather
6977 than trying to keep track of where data is copied and updating it to
6979 [Steve Henson, reported by Brien Wheeler
6980 <bwheeler@authentica-security.com>]
6982 *) Add a new function PKCS7_signatureVerify. This allows the verification
6983 of a PKCS#7 signature but with the signing certificate passed to the
6984 function itself. This contrasts with PKCS7_dataVerify which assumes the
6985 certificate is present in the PKCS#7 structure. This isn't always the
6986 case: certificates can be omitted from a PKCS#7 structure and be
6987 distributed by "out of band" means (such as a certificate database).
6990 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
6991 function prototypes in pem.h, also change util/mkdef.pl to add the
6992 necessary function names.
6995 *) mk1mf.pl (used by Windows builds) did not properly read the
6996 options set by Configure in the top level Makefile, and Configure
6997 was not even able to write more than one option correctly.
6998 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
7001 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
7002 file to be loaded from a BIO or FILE pointer. The BIO version will
7003 for example allow memory BIOs to contain config info.
7006 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
7007 Whoever hopes to achieve shared-library compatibility across versions
7008 must use this, not the compile-time macro.
7009 (Exercise 0.9.4: Which is the minimum library version required by
7011 Note: All this applies only to multi-threaded programs, others don't
7015 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
7016 through a BIO pair triggered the default case, i.e.
7017 SSLerr(...,SSL_R_UNKNOWN_STATE).
7020 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
7021 can use the SSL library even if none of the specific BIOs is
7025 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
7026 for the encoded length.
7027 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
7029 *) Add initial documentation of the X509V3 functions.
7032 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
7033 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
7034 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
7035 secure PKCS#8 private key format with a high iteration count.
7038 *) Fix determination of Perl interpreter: A perl or perl5
7039 _directory_ in $PATH was also accepted as the interpreter.
7040 [Ralf S. Engelschall]
7042 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
7043 wrong with it but it was very old and did things like calling
7044 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
7048 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
7049 to use the new extension code.
7052 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
7053 with macros. This should make it easier to change their form, add extra
7054 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
7058 *) Add to configuration table a new entry that can specify an alternative
7059 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
7060 according to Mark Crispin <MRC@Panda.COM>.
7064 *) DES CBC did not update the IV. Weird.
7067 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
7068 Changing the behaviour of the former might break existing programs --
7069 where IV updating is needed, des_ncbc_encrypt can be used.
7072 *) When bntest is run from "make test" it drives bc to check its
7073 calculations, as well as internally checking them. If an internal check
7074 fails, it needs to cause bc to give a non-zero result or make test carries
7075 on without noticing the failure. Fixed.
7078 *) DES library cleanups.
7081 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
7082 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
7083 ciphers. NOTE: although the key derivation function has been verified
7084 against some published test vectors it has not been extensively tested
7085 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
7089 *) Instead of "mkdir -p", which is not fully portable, use new
7090 Perl script "util/mkdir-p.pl".
7093 *) Rewrite the way password based encryption (PBE) is handled. It used to
7094 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
7095 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
7096 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
7097 the 'parameter' field of the AlgorithmIdentifier is passed to the
7098 underlying key generation function so it must do its own ASN1 parsing.
7099 This has also changed the EVP_PBE_CipherInit() function which now has a
7100 'parameter' argument instead of literal salt and iteration count values
7101 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
7104 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
7105 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
7106 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
7107 KEY" because this clashed with PKCS#8 unencrypted string. Since this
7108 value was just used as a "magic string" and not used directly its
7109 value doesn't matter.
7112 *) Introduce some semblance of const correctness to BN. Shame C doesn't
7116 *) "linux-sparc64" configuration (ultrapenguin).
7117 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
7118 "linux-sparc" configuration.
7119 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
7121 *) config now generates no-xxx options for missing ciphers.
7124 *) Support the EBCDIC character set (work in progress).
7125 File ebcdic.c not yet included because it has a different license.
7126 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7128 *) Support BS2000/OSD-POSIX.
7129 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7131 *) Make callbacks for key generation use void * instead of char *.
7134 *) Make S/MIME samples compile (not yet tested).
7137 *) Additional typesafe stacks.
7140 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
7144 Changes between 0.9.3 and 0.9.3a [29 May 1999]
7146 *) New configuration variant "sco5-gcc".
7148 *) Updated some demos.
7149 [Sean O Riordain, Wade Scholine]
7151 *) Add missing BIO_free at exit of pkcs12 application.
7154 *) Fix memory leak in conf.c.
7157 *) Updates for Win32 to assembler version of MD5.
7160 *) Set #! path to perl in apps/der_chop to where we found it
7161 instead of using a fixed path.
7164 *) SHA library changes for irix64-mips4-cc.
7167 *) Improvements for VMS support.
7171 Changes between 0.9.2b and 0.9.3 [24 May 1999]
7173 *) Bignum library bug fix. IRIX 6 passes "make test" now!
7174 This also avoids the problems with SC4.2 and unpatched SC5.
7175 [Andy Polyakov <appro@fy.chalmers.se>]
7177 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
7178 These are required because of the typesafe stack would otherwise break
7179 existing code. If old code used a structure member which used to be STACK
7180 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
7181 sk_num or sk_value it would produce an error because the num, data members
7182 are not present in STACK_OF. Now it just produces a warning. sk_set
7183 replaces the old method of assigning a value to sk_value
7184 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
7185 that does this will no longer work (and should use sk_set instead) but
7186 this could be regarded as a "questionable" behaviour anyway.
7189 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
7190 correctly handle encrypted S/MIME data.
7193 *) Change type of various DES function arguments from des_cblock
7194 (which means, in function argument declarations, pointer to char)
7195 to des_cblock * (meaning pointer to array with 8 char elements),
7196 which allows the compiler to do more typechecking; it was like
7197 that back in SSLeay, but with lots of ugly casts.
7199 Introduce new type const_des_cblock.
7202 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
7203 problems: find RecipientInfo structure that matches recipient certificate
7204 and initialise the ASN1 structures properly based on passed cipher.
7207 *) Belatedly make the BN tests actually check the results.
7210 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
7211 to and from BNs: it was completely broken. New compilation option
7212 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
7213 key elements as negative integers.
7216 *) Reorganize and speed up MD5.
7217 [Andy Polyakov <appro@fy.chalmers.se>]
7220 [Richard Levitte <richard@levitte.org>]
7222 *) New option -out to asn1parse to allow the parsed structure to be
7223 output to a file. This is most useful when combined with the -strparse
7224 option to examine the output of things like OCTET STRINGS.
7227 *) Make SSL library a little more fool-proof by not requiring any longer
7228 that SSL_set_{accept,connect}_state be called before
7229 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
7230 in many applications because usually everything *appeared* to work as
7231 intended anyway -- now it really works as intended).
7234 *) Move openssl.cnf out of lib/.
7237 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
7238 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
7239 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
7240 [Ralf S. Engelschall]
7242 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
7243 handle PKCS#7 enveloped data properly.
7244 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
7246 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
7247 copying pointers. The cert_st handling is changed by this in
7248 various ways (and thus what used to be known as ctx->default_cert
7249 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
7250 any longer when s->cert does not give us what we need).
7251 ssl_cert_instantiate becomes obsolete by this change.
7252 As soon as we've got the new code right (possibly it already is?),
7253 we have solved a couple of bugs of the earlier code where s->cert
7254 was used as if it could not have been shared with other SSL structures.
7256 Note that using the SSL API in certain dirty ways now will result
7257 in different behaviour than observed with earlier library versions:
7258 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
7259 does not influence s as it used to.
7261 In order to clean up things more thoroughly, inside SSL_SESSION
7262 we don't use CERT any longer, but a new structure SESS_CERT
7263 that holds per-session data (if available); currently, this is
7264 the peer's certificate chain and, for clients, the server's certificate
7265 and temporary key. CERT holds only those values that can have
7266 meaningful defaults in an SSL_CTX.
7269 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
7270 from the internal representation. Various PKCS#7 fixes: remove some
7271 evil casts and set the enc_dig_alg field properly based on the signing
7275 *) Allow PKCS#12 password to be set from the command line or the
7276 environment. Let 'ca' get its config file name from the environment
7277 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
7281 *) Allow certificate policies extension to use an IA5STRING for the
7282 organization field. This is contrary to the PKIX definition but
7283 VeriSign uses it and IE5 only recognises this form. Document 'x509'
7287 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
7288 without disallowing inline assembler and the like for non-pedantic builds.
7291 *) Support Borland C++ builder.
7292 [Janez Jere <jj@void.si>, modified by Ulf Möller]
7297 *) SHA-1 cleanups and performance enhancements.
7298 [Andy Polyakov <appro@fy.chalmers.se>]
7300 *) Sparc v8plus assembler for the bignum library.
7301 [Andy Polyakov <appro@fy.chalmers.se>]
7303 *) Accept any -xxx and +xxx compiler options in Configure.
7306 *) Update HPUX configuration.
7309 *) Add missing sk_<type>_unshift() function to safestack.h
7310 [Ralf S. Engelschall]
7312 *) New function SSL_CTX_use_certificate_chain_file that sets the
7313 "extra_cert"s in addition to the certificate. (This makes sense
7314 only for "PEM" format files, as chains as a whole are not
7318 *) Support verify_depth from the SSL API.
7319 x509_vfy.c had what can be considered an off-by-one-error:
7320 Its depth (which was not part of the external interface)
7321 was actually counting the number of certificates in a chain;
7322 now it really counts the depth.
7325 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
7326 instead of X509err, which often resulted in confusing error
7327 messages since the error codes are not globally unique
7328 (e.g. an alleged error in ssl3_accept when a certificate
7329 didn't match the private key).
7331 *) New function SSL_CTX_set_session_id_context that allows to set a default
7332 value (so that you don't need SSL_set_session_id_context for each
7333 connection using the SSL_CTX).
7336 *) OAEP decoding bug fix.
7339 *) Support INSTALL_PREFIX for package builders, as proposed by
7343 *) New Configure options "threads" and "no-threads". For systems
7344 where the proper compiler options are known (currently Solaris
7345 and Linux), "threads" is the default.
7348 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
7351 *) Install various scripts to $(OPENSSLDIR)/misc, not to
7352 $(INSTALLTOP)/bin -- they shouldn't clutter directories
7353 such as /usr/local/bin.
7356 *) "make linux-shared" to build shared libraries.
7357 [Niels Poppe <niels@netbox.org>]
7359 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
7362 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
7363 extension adding in x509 utility.
7366 *) Remove NOPROTO sections and error code comments.
7369 *) Partial rewrite of the DEF file generator to now parse the ANSI
7373 *) New Configure options --prefix=DIR and --openssldir=DIR.
7376 *) Complete rewrite of the error code script(s). It is all now handled
7377 by one script at the top level which handles error code gathering,
7378 header rewriting and C source file generation. It should be much better
7379 than the old method: it now uses a modified version of Ulf's parser to
7380 read the ANSI prototypes in all header files (thus the old K&R definitions
7381 aren't needed for error creation any more) and do a better job of
7382 translating function codes into names. The old 'ASN1 error code imbedded
7383 in a comment' is no longer necessary and it doesn't use .err files which
7384 have now been deleted. Also the error code call doesn't have to appear all
7385 on one line (which resulted in some large lines...).
7388 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
7391 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
7392 0 (which usually indicates a closed connection), but continue reading.
7395 *) Fix some race conditions.
7398 *) Add support for CRL distribution points extension. Add Certificate
7399 Policies and CRL distribution points documentation.
7402 *) Move the autogenerated header file parts to crypto/opensslconf.h.
7405 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
7406 8 of keying material. Merlin has also confirmed interop with this fix
7407 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
7408 [Merlin Hughes <merlin@baltimore.ie>]
7410 *) Fix lots of warnings.
7411 [Richard Levitte <levitte@stacken.kth.se>]
7413 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
7414 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
7415 [Richard Levitte <levitte@stacken.kth.se>]
7417 *) Fix problems with sizeof(long) == 8.
7418 [Andy Polyakov <appro@fy.chalmers.se>]
7420 *) Change functions to ANSI C.
7423 *) Fix typos in error codes.
7424 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
7426 *) Remove defunct assembler files from Configure.
7429 *) SPARC v8 assembler BIGNUM implementation.
7430 [Andy Polyakov <appro@fy.chalmers.se>]
7432 *) Support for Certificate Policies extension: both print and set.
7433 Various additions to support the r2i method this uses.
7436 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
7437 return a const string when you are expecting an allocated buffer.
7440 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
7441 types DirectoryString and DisplayText.
7444 *) Add code to allow r2i extensions to access the configuration database,
7445 add an LHASH database driver and add several ctx helper functions.
7448 *) Fix an evil bug in bn_expand2() which caused various BN functions to
7449 fail when they extended the size of a BIGNUM.
7452 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
7453 support typesafe stack.
7456 *) Fix typo in SSL_[gs]et_options().
7457 [Nils Frostberg <nils@medcom.se>]
7459 *) Delete various functions and files that belonged to the (now obsolete)
7460 old X509V3 handling code.
7463 *) New Configure option "rsaref".
7466 *) Don't auto-generate pem.h.
7469 *) Introduce type-safe ASN.1 SETs.
7472 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
7473 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
7475 *) Introduce type-safe STACKs. This will almost certainly break lots of code
7476 that links with OpenSSL (well at least cause lots of warnings), but fear
7477 not: the conversion is trivial, and it eliminates loads of evil casts. A
7478 few STACKed things have been converted already. Feel free to convert more.
7479 In the fullness of time, I'll do away with the STACK type altogether.
7482 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
7483 specified in <certfile> by updating the entry in the index.txt file.
7484 This way one no longer has to edit the index.txt file manually for
7485 revoking a certificate. The -revoke option does the gory details now.
7486 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
7488 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
7489 `-text' option at all and this way the `-noout -text' combination was
7490 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
7491 [Ralf S. Engelschall]
7493 *) Make sure a corresponding plain text error message exists for the
7494 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
7495 verify callback function determined that a certificate was revoked.
7496 [Ralf S. Engelschall]
7498 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
7499 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
7500 all available cipers including rc5, which was forgotten until now.
7501 In order to let the testing shell script know which algorithms
7502 are available, a new (up to now undocumented) command
7503 "openssl list-cipher-commands" is used.
7506 *) Bugfix: s_client occasionally would sleep in select() when
7507 it should have checked SSL_pending() first.
7510 *) New functions DSA_do_sign and DSA_do_verify to provide access to
7511 the raw DSA values prior to ASN.1 encoding.
7514 *) Tweaks to Configure
7515 [Niels Poppe <niels@netbox.org>]
7517 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
7521 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
7524 *) New config option to avoid instructions that are illegal on the 80386.
7525 The default code is faster, but requires at least a 486.
7528 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
7529 SSL2_SERVER_VERSION (not used at all) macros, which are now the
7530 same as SSL2_VERSION anyway.
7533 *) New "-showcerts" option for s_client.
7536 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
7537 application. Various cleanups and fixes.
7540 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
7541 modify error routines to work internally. Add error codes and PBE init
7542 to library startup routines.
7545 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
7546 packing functions to asn1 and evp. Changed function names and error
7547 codes along the way.
7550 *) PKCS12 integration: and so it begins... First of several patches to
7551 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
7552 objects to objects.h
7555 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
7556 and display support for Thawte strong extranet extension.
7559 *) Add LinuxPPC support.
7560 [Jeff Dubrule <igor@pobox.org>]
7562 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
7563 bn_div_words in alpha.s.
7564 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
7566 *) Make sure the RSA OAEP test is skipped under -DRSAref because
7567 OAEP isn't supported when OpenSSL is built with RSAref.
7568 [Ulf Moeller <ulf@fitug.de>]
7570 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
7571 so they no longer are missing under -DNOPROTO.
7572 [Soren S. Jorvang <soren@t.dk>]
7575 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
7577 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
7578 doesn't work when the session is reused. Coming soon!
7581 *) Fix a security hole, that allows sessions to be reused in the wrong
7582 context thus bypassing client cert protection! All software that uses
7583 client certs and session caches in multiple contexts NEEDS PATCHING to
7584 allow session reuse! A fuller solution is in the works.
7585 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
7587 *) Some more source tree cleanups (removed obsolete files
7588 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
7589 permission on "config" script to be executable) and a fix for the INSTALL
7591 [Ulf Moeller <ulf@fitug.de>]
7593 *) Remove some legacy and erroneous uses of malloc, free instead of
7595 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
7597 *) Make rsa_oaep_test return non-zero on error.
7598 [Ulf Moeller <ulf@fitug.de>]
7600 *) Add support for native Solaris shared libraries. Configure
7601 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
7602 if someone would make that last step automatic.
7603 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
7605 *) ctx_size was not built with the right compiler during "make links". Fixed.
7608 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
7609 except NULL ciphers". This means the default cipher list will no longer
7610 enable NULL ciphers. They need to be specifically enabled e.g. with
7611 the string "DEFAULT:eNULL".
7614 *) Fix to RSA private encryption routines: if p < q then it would
7615 occasionally produce an invalid result. This will only happen with
7616 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
7619 *) Be less restrictive and allow also `perl util/perlpath.pl
7620 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
7621 because this way one can also use an interpreter named `perl5' (which is
7622 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
7623 installed as `perl').
7624 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7626 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
7627 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7629 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
7630 advapi32.lib to Win32 build and change the pem test comparision
7631 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
7632 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
7633 and crypto/des/ede_cbcm_enc.c.
7636 *) DES quad checksum was broken on big-endian architectures. Fixed.
7639 *) Comment out two functions in bio.h that aren't implemented. Fix up the
7640 Win32 test batch file so it (might) work again. The Win32 test batch file
7641 is horrible: I feel ill....
7644 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
7645 in e_os.h. Audit of header files to check ANSI and non ANSI
7646 sections: 10 functions were absent from non ANSI section and not exported
7647 from Windows DLLs. Fixed up libeay.num for new functions.
7650 *) Make `openssl version' output lines consistent.
7651 [Ralf S. Engelschall]
7653 *) Fix Win32 symbol export lists for BIO functions: Added
7654 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
7655 to ms/libeay{16,32}.def.
7656 [Ralf S. Engelschall]
7658 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
7659 fine under Unix and passes some trivial tests I've now added. But the
7660 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
7661 added to make sure no one expects that this stuff really works in the
7662 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
7663 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
7665 [Ralf S. Engelschall]
7667 *) Fix the generation of two part addresses in perl.
7668 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
7670 *) Add config entry for Linux on MIPS.
7671 [John Tobey <jtobey@channel1.com>]
7673 *) Make links whenever Configure is run, unless we are on Windoze.
7676 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
7677 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
7681 *) Add a useful kludge to allow package maintainers to specify compiler and
7682 other platforms details on the command line without having to patch the
7683 Configure script everytime: One now can use ``perl Configure
7684 <id>:<details>'', i.e. platform ids are allowed to have details appended
7685 to them (seperated by colons). This is treated as there would be a static
7686 pre-configured entry in Configure's %table under key <id> with value
7687 <details> and ``perl Configure <id>'' is called. So, when you want to
7688 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
7689 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
7690 now, which overrides the FreeBSD-elf entry on-the-fly.
7691 [Ralf S. Engelschall]
7693 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
7696 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
7697 on the `perl Configure ...' command line. This way one can compile
7698 OpenSSL libraries with Position Independent Code (PIC) which is needed
7699 for linking it into DSOs.
7700 [Ralf S. Engelschall]
7702 *) Remarkably, export ciphers were totally broken and no-one had noticed!
7706 *) Cleaned up the LICENSE document: The official contact for any license
7707 questions now is the OpenSSL core team under openssl-core@openssl.org.
7708 And add a paragraph about the dual-license situation to make sure people
7709 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
7710 to the OpenSSL toolkit.
7711 [Ralf S. Engelschall]
7713 *) General source tree makefile cleanups: Made `making xxx in yyy...'
7714 display consistent in the source tree and replaced `/bin/rm' by `rm'.
7715 Additonally cleaned up the `make links' target: Remove unnecessary
7716 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
7717 to speed processing and no longer clutter the display with confusing
7718 stuff. Instead only the actually done links are displayed.
7719 [Ralf S. Engelschall]
7721 *) Permit null encryption ciphersuites, used for authentication only. It used
7722 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
7723 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
7727 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
7728 signed attributes when verifying signatures (this would break them),
7729 the detached data encoding was wrong and public keys obtained using
7730 X509_get_pubkey() weren't freed.
7733 *) Add text documentation for the BUFFER functions. Also added a work around
7734 to a Win95 console bug. This was triggered by the password read stuff: the
7735 last character typed gets carried over to the next fread(). If you were
7736 generating a new cert request using 'req' for example then the last
7737 character of the passphrase would be CR which would then enter the first
7741 *) Added the new `Includes OpenSSL Cryptography Software' button as
7742 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
7743 button and can be used by applications based on OpenSSL to show the
7744 relationship to the OpenSSL project.
7745 [Ralf S. Engelschall]
7747 *) Remove confusing variables in function signatures in files
7748 ssl/ssl_lib.c and ssl/ssl.h.
7749 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7751 *) Don't install bss_file.c under PREFIX/include/
7752 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7754 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
7755 functions that return function pointers and has support for NT specific
7756 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
7757 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
7758 unsigned to signed types: this was killing the Win32 compile.
7761 *) Add new certificate file to stack functions,
7762 SSL_add_dir_cert_subjects_to_stack() and
7763 SSL_add_file_cert_subjects_to_stack(). These largely supplant
7764 SSL_load_client_CA_file(), and can be used to add multiple certs easily
7765 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
7766 This means that Apache-SSL and similar packages don't have to mess around
7767 to add as many CAs as they want to the preferred list.
7770 *) Experiment with doxygen documentation. Currently only partially applied to
7772 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
7773 openssl.doxy as the configuration file.
7776 *) Get rid of remaining C++-style comments which strict C compilers hate.
7777 [Ralf S. Engelschall, pointed out by Carlos Amengual]
7779 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
7780 compiled in by default: it has problems with large keys.
7783 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
7784 DH private keys and/or callback functions which directly correspond to
7785 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
7786 is needed for applications which have to configure certificates on a
7787 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
7789 For the RSA certificate situation is makes no difference, but
7790 for the DSA certificate situation this fixes the "no shared cipher"
7791 problem where the OpenSSL cipher selection procedure failed because the
7792 temporary keys were not overtaken from the context and the API provided
7793 no way to reconfigure them.
7794 The new functions now let applications reconfigure the stuff and they
7795 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
7796 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
7797 non-public-API function ssl_cert_instantiate() is used as a helper
7798 function and also to reduce code redundancy inside ssl_rsa.c.
7799 [Ralf S. Engelschall]
7801 *) Move s_server -dcert and -dkey options out of the undocumented feature
7802 area because they are useful for the DSA situation and should be
7803 recognized by the users.
7804 [Ralf S. Engelschall]
7806 *) Fix the cipher decision scheme for export ciphers: the export bits are
7807 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
7808 SSL_EXP_MASK. So, the original variable has to be used instead of the
7809 already masked variable.
7810 [Richard Levitte <levitte@stacken.kth.se>]
7812 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
7813 [Richard Levitte <levitte@stacken.kth.se>]
7815 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
7816 from `int' to `unsigned int' because it's a length and initialized by
7817 EVP_DigestFinal() which expects an `unsigned int *'.
7818 [Richard Levitte <levitte@stacken.kth.se>]
7820 *) Don't hard-code path to Perl interpreter on shebang line of Configure
7821 script. Instead use the usual Shell->Perl transition trick.
7822 [Ralf S. Engelschall]
7824 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
7825 (in addition to RSA certificates) to match the behaviour of `openssl dsa
7826 -noout -modulus' as it's already the case for `openssl rsa -noout
7827 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
7828 currently the public key is printed (a decision which was already done by
7829 `openssl dsa -modulus' in the past) which serves a similar purpose.
7830 Additionally the NO_RSA no longer completely removes the whole -modulus
7831 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
7833 [Ralf S. Engelschall]
7835 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
7836 BIO. See the source (crypto/evp/bio_ok.c) for more info.
7837 [Arne Ansper <arne@ats.cyber.ee>]
7839 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
7840 to be added. Now both 'req' and 'ca' can use new objects defined in the
7844 *) Add cool BIO that does syslog (or event log on NT).
7845 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
7847 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
7848 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
7849 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
7850 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
7853 *) Add preliminary config info for new extension code.
7856 *) Make RSA_NO_PADDING really use no padding.
7857 [Ulf Moeller <ulf@fitug.de>]
7859 *) Generate errors when private/public key check is done.
7862 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
7863 for some CRL extensions and new objects added.
7866 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
7867 key usage extension and fuller support for authority key id.
7870 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
7871 padding method for RSA, which is recommended for new applications in PKCS
7872 #1 v2.0 (RFC 2437, October 1998).
7873 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
7874 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
7875 against Bleichbacher's attack on RSA.
7876 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
7879 *) Updates to the new SSL compression code
7880 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7882 *) Fix so that the version number in the master secret, when passed
7883 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
7884 (because the server will not accept higher), that the version number
7885 is 0x03,0x01, not 0x03,0x00
7886 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7888 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
7889 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
7890 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
7893 *) Support for RAW extensions where an arbitrary extension can be
7894 created by including its DER encoding. See apps/openssl.cnf for
7898 *) Make sure latest Perl versions don't interpret some generated C array
7899 code as Perl array code in the crypto/err/err_genc.pl script.
7900 [Lars Weber <3weber@informatik.uni-hamburg.de>]
7902 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
7903 not many people have the assembler. Various Win32 compilation fixes and
7904 update to the INSTALL.W32 file with (hopefully) more accurate Win32
7908 *) Modify configure script 'Configure' to automatically create crypto/date.h
7909 file under Win32 and also build pem.h from pem.org. New script
7910 util/mkfiles.pl to create the MINFO file on environments that can't do a
7911 'make files': perl util/mkfiles.pl >MINFO should work.
7914 *) Major rework of DES function declarations, in the pursuit of correctness
7915 and purity. As a result, many evil casts evaporated, and some weirdness,
7916 too. You may find this causes warnings in your code. Zapping your evil
7917 casts will probably fix them. Mostly.
7920 *) Fix for a typo in asn1.h. Bug fix to object creation script
7921 obj_dat.pl. It considered a zero in an object definition to mean
7922 "end of object": none of the objects in objects.h have any zeros
7923 so it wasn't spotted.
7924 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
7926 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
7927 Masking (CBCM). In the absence of test vectors, the best I have been able
7928 to do is check that the decrypt undoes the encrypt, so far. Send me test
7929 vectors if you have them.
7932 *) Correct calculation of key length for export ciphers (too much space was
7933 allocated for null ciphers). This has not been tested!
7936 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
7937 message is now correct (it understands "crypto" and "ssl" on its
7938 command line). There is also now an "update" option. This will update
7939 the util/ssleay.num and util/libeay.num files with any new functions.
7941 perl util/mkdef.pl crypto ssl update
7942 it will update them.
7945 *) Overhauled the Perl interface (perl/*):
7946 - ported BN stuff to OpenSSL's different BN library
7947 - made the perl/ source tree CVS-aware
7948 - renamed the package from SSLeay to OpenSSL (the files still contain
7949 their history because I've copied them in the repository)
7950 - removed obsolete files (the test scripts will be replaced
7951 by better Test::Harness variants in the future)
7952 [Ralf S. Engelschall]
7954 *) First cut for a very conservative source tree cleanup:
7955 1. merge various obsolete readme texts into doc/ssleay.txt
7956 where we collect the old documents and readme texts.
7957 2. remove the first part of files where I'm already sure that we no
7958 longer need them because of three reasons: either they are just temporary
7959 files which were left by Eric or they are preserved original files where
7960 I've verified that the diff is also available in the CVS via "cvs diff
7961 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
7962 the crypto/md/ stuff).
7963 [Ralf S. Engelschall]
7965 *) More extension code. Incomplete support for subject and issuer alt
7966 name, issuer and authority key id. Change the i2v function parameters
7967 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
7968 what that's for :-) Fix to ASN1 macro which messed up
7969 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
7972 *) Preliminary support for ENUMERATED type. This is largely copied from the
7976 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
7977 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7979 *) Make sure `make rehash' target really finds the `openssl' program.
7980 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7982 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
7983 like to hear about it if this slows down other processors.
7986 *) Add CygWin32 platform information to Configure script.
7987 [Alan Batie <batie@aahz.jf.intel.com>]
7989 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
7990 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
7992 *) New program nseq to manipulate netscape certificate sequences
7995 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
7999 *) Fixes to BN code. Previously the default was to define BN_RECURSION
8000 but the BN code had some problems that would cause failures when
8001 doing certificate verification and some other functions.
8002 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8004 *) Add ASN1 and PEM code to support netscape certificate sequences.
8007 *) Add ASN1 and PEM code to support netscape certificate sequences.
8010 *) Add several PKIX and private extended key usage OIDs.
8013 *) Modify the 'ca' program to handle the new extension code. Modify
8014 openssl.cnf for new extension format, add comments.
8017 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
8018 and add a sample to openssl.cnf so req -x509 now adds appropriate
8022 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
8023 error code, add initial support to X509_print() and x509 application.
8026 *) Takes a deep breath and start addding X509 V3 extension support code. Add
8027 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
8028 stuff is currently isolated and isn't even compiled yet.
8031 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
8032 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
8033 Removed the versions check from X509 routines when loading extensions:
8034 this allows certain broken certificates that don't set the version
8035 properly to be processed.
8038 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
8039 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
8040 can still be regenerated with "make depend".
8043 *) Spelling mistake in C version of CAST-128.
8044 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
8046 *) Changes to the error generation code. The perl script err-code.pl
8047 now reads in the old error codes and retains the old numbers, only
8048 adding new ones if necessary. It also only changes the .err files if new
8049 codes are added. The makefiles have been modified to only insert errors
8050 when needed (to avoid needlessly modifying header files). This is done
8051 by only inserting errors if the .err file is newer than the auto generated
8052 C file. To rebuild all the error codes from scratch (the old behaviour)
8053 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
8054 or delete all the .err files.
8057 *) CAST-128 was incorrectly implemented for short keys. The C version has
8058 been fixed, but is untested. The assembler versions are also fixed, but
8059 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
8060 to regenerate it if needed.
8061 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
8062 Hagino <itojun@kame.net>]
8064 *) File was opened incorrectly in randfile.c.
8065 [Ulf Möller <ulf@fitug.de>]
8067 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
8068 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
8069 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
8070 al: it's just almost always a UTCTime. Note this patch adds new error
8071 codes so do a "make errors" if there are problems.
8074 *) Correct Linux 1 recognition in config.
8075 [Ulf Möller <ulf@fitug.de>]
8077 *) Remove pointless MD5 hash when using DSA keys in ca.
8078 [Anonymous <nobody@replay.com>]
8080 *) Generate an error if given an empty string as a cert directory. Also
8081 generate an error if handed NULL (previously returned 0 to indicate an
8082 error, but didn't set one).
8083 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
8085 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
8088 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
8089 parameters. This was causing a warning which killed off the Win32 compile.
8092 *) Remove C++ style comments from crypto/bn/bn_local.h.
8093 [Neil Costigan <neil.costigan@celocom.com>]
8095 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
8096 based on a text string, looking up short and long names and finally
8097 "dot" format. The "dot" format stuff didn't work. Added new function
8098 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
8099 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
8100 OID is not part of the table.
8103 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
8104 X509_LOOKUP_by_alias().
8107 *) Sort openssl functions by name.
8110 *) Get the gendsa program working (hopefully) and add it to app list. Remove
8111 encryption from sample DSA keys (in case anyone is interested the password
8115 *) Make _all_ *_free functions accept a NULL pointer.
8116 [Frans Heymans <fheymans@isaserver.be>]
8118 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
8120 [Anonymous <nobody@replay.com>]
8122 *) s_server should send the CAfile as acceptable CAs, not its own cert.
8123 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8125 *) Don't blow it for numeric -newkey arguments to apps/req.
8126 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8128 *) Temp key "for export" tests were wrong in s3_srvr.c.
8129 [Anonymous <nobody@replay.com>]
8131 *) Add prototype for temp key callback functions
8132 SSL_CTX_set_tmp_{rsa,dh}_callback().
8135 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
8136 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
8139 *) X509_name_add_entry() freed the wrong thing after an error.
8140 [Arne Ansper <arne@ats.cyber.ee>]
8142 *) rsa_eay.c would attempt to free a NULL context.
8143 [Arne Ansper <arne@ats.cyber.ee>]
8145 *) BIO_s_socket() had a broken should_retry() on Windoze.
8146 [Arne Ansper <arne@ats.cyber.ee>]
8148 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
8149 [Arne Ansper <arne@ats.cyber.ee>]
8151 *) Make sure the already existing X509_STORE->depth variable is initialized
8152 in X509_STORE_new(), but document the fact that this variable is still
8153 unused in the certificate verification process.
8154 [Ralf S. Engelschall]
8156 *) Fix the various library and apps files to free up pkeys obtained from
8157 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
8160 *) Fix reference counting in X509_PUBKEY_get(). This makes
8161 demos/maurice/example2.c work, amongst others, probably.
8162 [Steve Henson and Ben Laurie]
8164 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
8165 `openssl' and second, the shortcut symlinks for the `openssl <command>'
8166 are no longer created. This way we have a single and consistent command
8167 line interface `openssl <command>', similar to `cvs <command>'.
8168 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
8170 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
8171 BIT STRING wrapper always have zero unused bits.
8174 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
8177 *) Make the top-level INSTALL documentation easier to understand.
8180 *) Makefiles updated to exit if an error occurs in a sub-directory
8181 make (including if user presses ^C) [Paul Sutton]
8183 *) Make Montgomery context stuff explicit in RSA data structure.
8186 *) Fix build order of pem and err to allow for generated pem.h.
8189 *) Fix renumbering bug in X509_NAME_delete_entry().
8192 *) Enhanced the err-ins.pl script so it makes the error library number
8193 global and can add a library name. This is needed for external ASN1 and
8194 other error libraries.
8197 *) Fixed sk_insert which never worked properly.
8200 *) Fix ASN1 macros so they can handle indefinite length construted
8201 EXPLICIT tags. Some non standard certificates use these: they can now
8205 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
8206 into a single doc/ssleay.txt bundle. This way the information is still
8207 preserved but no longer messes up this directory. Now it's new room for
8208 the new set of documenation files.
8209 [Ralf S. Engelschall]
8211 *) SETs were incorrectly DER encoded. This was a major pain, because they
8212 shared code with SEQUENCEs, which aren't coded the same. This means that
8213 almost everything to do with SETs or SEQUENCEs has either changed name or
8214 number of arguments.
8215 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
8217 *) Fix test data to work with the above.
8220 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
8221 was already fixed by Eric for 0.9.1 it seems.
8222 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
8224 *) Autodetect FreeBSD3.
8227 *) Fix various bugs in Configure. This affects the following platforms:
8231 unixware-2.0-pentium
8235 *) Eliminate generated files from CVS. Reorder tests to regenerate files
8236 before they are needed.
8239 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
8243 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
8245 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
8246 changed SSLeay to OpenSSL in version strings.
8247 [Ralf S. Engelschall]
8249 *) Some fixups to the top-level documents.
8252 *) Fixed the nasty bug where rsaref.h was not found under compile-time
8253 because the symlink to include/ was missing.
8254 [Ralf S. Engelschall]
8256 *) Incorporated the popular no-RSA/DSA-only patches
8257 which allow to compile a RSA-free SSLeay.
8258 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
8260 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
8261 when "ssleay" is still not found.
8262 [Ralf S. Engelschall]
8264 *) Added more platforms to Configure: Cray T3E, HPUX 11,
8265 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
8267 *) Updated the README file.
8268 [Ralf S. Engelschall]
8270 *) Added various .cvsignore files in the CVS repository subdirs
8271 to make a "cvs update" really silent.
8272 [Ralf S. Engelschall]
8274 *) Recompiled the error-definition header files and added
8275 missing symbols to the Win32 linker tables.
8276 [Ralf S. Engelschall]
8278 *) Cleaned up the top-level documents;
8279 o new files: CHANGES and LICENSE
8280 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
8281 o merged COPYRIGHT into LICENSE
8282 o removed obsolete TODO file
8283 o renamed MICROSOFT to INSTALL.W32
8284 [Ralf S. Engelschall]
8286 *) Removed dummy files from the 0.9.1b source tree:
8287 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
8288 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
8289 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
8290 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
8291 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
8292 [Ralf S. Engelschall]
8294 *) Added various platform portability fixes.
8297 *) The Genesis of the OpenSSL rpject:
8298 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
8299 Young and Tim J. Hudson created while they were working for C2Net until
8301 [The OpenSSL Project]
8304 Changes between 0.9.0b and 0.9.1b [not released]
8306 *) Updated a few CA certificates under certs/
8309 *) Changed some BIGNUM api stuff.
8312 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
8313 DGUX x86, Linux Alpha, etc.
8316 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
8317 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
8321 *) Add -strparse option to asn1pars program which parses nested
8323 [Dr Stephen Henson <shenson@bigfoot.com>]
8325 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
8328 *) DSA fix for "ca" program.
8331 *) Added "-genkey" option to "dsaparam" program.
8334 *) Added RIPE MD160 (rmd160) message digest.
8337 *) Added -a (all) option to "ssleay version" command.
8340 *) Added PLATFORM define which is the id given to Configure.
8343 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
8346 *) Extended the ASN.1 parser routines.
8349 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
8352 *) Added a BN_CTX to the BN library.
8355 *) Fixed the weak key values in DES library
8358 *) Changed API in EVP library for cipher aliases.
8361 *) Added support for RC2/64bit cipher.
8364 *) Converted the lhash library to the crypto/mem.c functions.
8367 *) Added more recognized ASN.1 object ids.
8370 *) Added more RSA padding checks for SSL/TLS.
8373 *) Added BIO proxy/filter functionality.
8376 *) Added extra_certs to SSL_CTX which can be used
8377 send extra CA certificates to the client in the CA cert chain sending
8378 process. It can be configured with SSL_CTX_add_extra_chain_cert().
8381 *) Now Fortezza is denied in the authentication phase because
8382 this is key exchange mechanism is not supported by SSLeay at all.
8385 *) Additional PKCS1 checks.
8388 *) Support the string "TLSv1" for all TLS v1 ciphers.
8391 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
8392 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
8395 *) Fixed a few memory leaks.
8398 *) Fixed various code and comment typos.
8401 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
8402 bytes sent in the client random.
8403 [Edward Bishop <ebishop@spyglass.com>]
projects / oweals / openssl.git / blob