5 Changes between 0.9.8l and 0.9.8m [xx XXX xxxx]
8 https://svn.resiprocate.org/rep/ietf-drafts/ekr/draft-rescorla-tls-renegotiate.txt. Re-enable
9 renegotiation but require the extension as needed. Unfortunately,
10 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION turns out to be a
11 bad idea. It has been replaced by
12 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with
13 SSL_CTX_set_options(). This is really not recommended unless you
14 know what you are doing.
15 [Eric Rescorla <ekr@networkresonance.com> and Ben Laurie]
17 *) Fixes to stateless session resumption handling. Use initial_ctx when
18 issuing and attempting to decrypt tickets in case it has changed during
19 servername handling. Use a non-zero length session ID when attempting
20 stateless session resumption: this makes it possible to determine if
21 a resumption has occurred immediately after receiving server hello
22 (several places in OpenSSL subtly assume this) instead of later in
26 *) The functions ENGINE_ctrl(), OPENSSL_isservice(),
27 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
28 fixes for a few places where the return code is not checked
30 [Julia Lawall <julia@diku.dk>]
32 *) Add --strict-warnings option to Configure script to include devteam
33 warnings in other configurations.
36 *) Add support for --libdir option and LIBDIR variable in makefiles. This
37 makes it possible to install openssl libraries in locations which
38 have names other than "lib", for example "/usr/lib64" which some
40 [Steve Henson, based on patch from Jeremy Utley]
42 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
43 X690 8.9.12 and can produce some misleading textual output of OIDs.
44 [Steve Henson, reported by Dan Kaminsky]
46 *) Delete MD2 from algorithm tables. This follows the recommendation in
47 several standards that it is not used in new applications due to
48 several cryptographic weaknesses. For binary compatibility reasons
49 the MD2 API is still compiled in by default.
52 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
56 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
57 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
59 [Guenter <lists@gknw.net>]
61 *) Fix the server certificate chain building code to use X509_verify_cert(),
62 it used to have an ad-hoc builder which was unable to cope with anything
63 other than a simple chain.
64 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
66 *) Don't check self signed certificate signatures in X509_verify_cert()
67 by default (a flag can override this): it just wastes time without
68 adding any security. As a useful side effect self signed root CAs
69 with non-FIPS digests are now usable in FIPS mode.
72 *) In dtls1_process_out_of_seq_message() the check if the current message
73 is already buffered was missing. For every new message was memory
74 allocated, allowing an attacker to perform an denial of service attack
75 with sending out of seq handshake messages until there is no memory
76 left. Additionally every future messege was buffered, even if the
77 sequence number made no sense and would be part of another handshake.
78 So only messages with sequence numbers less than 10 in advance will be
79 buffered. (CVE-2009-1378)
80 [Robin Seggelmann, discovered by Daniel Mentz]
82 *) Records are buffered if they arrive with a future epoch to be
83 processed after finishing the corresponding handshake. There is
84 currently no limitation to this buffer allowing an attacker to perform
85 a DOS attack with sending records with future epochs until there is no
86 memory left. This patch adds the pqueue_size() function to detemine
87 the size of a buffer and limits the record buffer to 100 entries.
89 [Robin Seggelmann, discovered by Daniel Mentz]
91 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
92 parent structure is freed. (CVE-2009-1379)
95 *) Handle non-blocking I/O properly in SSL_shutdown() call.
96 [Darryl Miles <darryl-mailinglists@netbauds.net>]
99 [Ilya O. <vrghost@gmail.com>]
101 Changes between 0.9.8k and 0.9.8l [5 Nov 2009]
103 *) Disable renegotiation completely - this fixes a severe security
104 problem (CVE-2009-3555) at the cost of breaking all
105 renegotiation. Renegotiation can be re-enabled by setting
106 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at
107 run-time. This is really not recommended unless you know what
111 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
113 *) Don't set val to NULL when freeing up structures, it is freed up by
114 underlying code. If sizeof(void *) > sizeof(long) this can result in
115 zeroing past the valid field. (CVE-2009-0789)
116 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
118 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
119 checked correctly. This would allow some invalid signed attributes to
120 appear to verify correctly. (CVE-2009-0591)
121 [Ivan Nestlerode <inestlerode@us.ibm.com>]
123 *) Reject UniversalString and BMPString types with invalid lengths. This
124 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
125 a legal length. (CVE-2009-0590)
128 *) Set S/MIME signing as the default purpose rather than setting it
129 unconditionally. This allows applications to override it at the store
133 *) Permit restricted recursion of ASN1 strings. This is needed in practice
134 to handle some structures.
137 *) Improve efficiency of mem_gets: don't search whole buffer each time
139 [Jeremy Shapiro <jnshapir@us.ibm.com>]
141 *) New -hex option for openssl rand.
144 *) Print out UTF8String and NumericString when parsing ASN1.
147 *) Support NumericString type for name components.
150 *) Allow CC in the environment to override the automatically chosen
151 compiler. Note that nothing is done to ensure flags work with the
155 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
157 *) Properly check EVP_VerifyFinal() and similar return values
159 [Ben Laurie, Bodo Moeller, Google Security Team]
161 *) Enable TLS extensions by default.
164 *) Allow the CHIL engine to be loaded, whether the application is
165 multithreaded or not. (This does not release the developer from the
166 obligation to set up the dynamic locking callbacks.)
167 [Sander Temme <sander@temme.net>]
169 *) Use correct exit code if there is an error in dgst command.
170 [Steve Henson; problem pointed out by Roland Dirlewanger]
172 *) Tweak Configure so that you need to say "experimental-jpake" to enable
173 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
176 *) Add experimental JPAKE support, including demo authentication in
177 s_client and s_server.
180 *) Set the comparison function in v3_addr_canonize().
181 [Rob Austein <sra@hactrn.net>]
183 *) Add support for XMPP STARTTLS in s_client.
184 [Philip Paeps <philip@freebsd.org>]
186 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
187 to ensure that even with this option, only ciphersuites in the
188 server's preference list will be accepted. (Note that the option
189 applies only when resuming a session, so the earlier behavior was
190 just about the algorithm choice for symmetric cryptography.)
193 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
195 *) Fix NULL pointer dereference if a DTLS server recieved
196 ChangeCipherSpec as first record (CVE-2009-1386)
197 [Bodo Moeller, discovered by Alex Lam]
199 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
200 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
203 *) The fix in 0.9.8c that supposedly got rid of unsafe
204 double-checked locking was incomplete for RSA blinding,
205 addressing just one layer of what turns out to have been
206 doubly unsafe triple-checked locking.
208 So now fix this for real by retiring the MONT_HELPER macro
209 in crypto/rsa/rsa_eay.c.
211 [Bodo Moeller; problem pointed out by Marius Schilder]
213 *) Various precautionary measures:
215 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
217 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
218 (NB: This would require knowledge of the secret session ticket key
219 to exploit, in which case you'd be SOL either way.)
221 - Change bn_nist.c so that it will properly handle input BIGNUMs
222 outside the expected range.
224 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
227 [Neel Mehta, Bodo Moeller]
229 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
230 the load fails. Useful for distros.
231 [Ben Laurie and the FreeBSD team]
233 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
236 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
239 *) Expand ENGINE to support engine supplied SSL client certificate functions.
241 This work was sponsored by Logica.
244 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
245 keystores. Support for SSL/TLS client authentication too.
246 Not compiled unless enable-capieng specified to Configure.
248 This work was sponsored by Logica.
251 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
252 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
253 attribute creation routines such as certifcate requests and PKCS#12
257 Changes between 0.9.8g and 0.9.8h [28 May 2008]
259 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
260 handshake which could lead to a cilent crash as found using the
261 Codenomicon TLS test suite (CVE-2008-1672)
262 [Steve Henson, Mark Cox]
264 *) Fix double free in TLS server name extensions which could lead to
265 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
268 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
270 Clear the error queue to ensure that error entries left from
271 older function calls do not interfere with the correct operation.
272 [Lutz Jaenicke, Erik de Castro Lopo]
274 *) Remove root CA certificates of commercial CAs:
276 The OpenSSL project does not recommend any specific CA and does not
277 have any policy with respect to including or excluding any CA.
278 Therefore it does not make any sense to ship an arbitrary selection
279 of root CA certificates with the OpenSSL software.
282 *) RSA OAEP patches to fix two separate invalid memory reads.
283 The first one involves inputs when 'lzero' is greater than
284 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
285 before the beginning of from). The second one involves inputs where
286 the 'db' section contains nothing but zeroes (there is a one-byte
287 invalid read after the end of 'db').
288 [Ivan Nestlerode <inestlerode@us.ibm.com>]
290 *) Partial backport from 0.9.9-dev:
292 Introduce bn_mul_mont (dedicated Montgomery multiplication
293 procedure) as a candidate for BIGNUM assembler implementation.
294 While 0.9.9-dev uses assembler for various architectures, only
295 x86_64 is available by default here in the 0.9.8 branch, and
296 32-bit x86 is available through a compile-time setting.
298 To try the 32-bit x86 assembler implementation, use Configure
299 option "enable-montasm" (which exists only for this backport).
301 As "enable-montasm" for 32-bit x86 disclaims code stability
302 anyway, in this constellation we activate additional code
303 backported from 0.9.9-dev for further performance improvements,
304 namely BN_from_montgomery_word. (To enable this otherwise,
305 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
307 [Andy Polyakov (backport partially by Bodo Moeller)]
309 *) Add TLS session ticket callback. This allows an application to set
310 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
311 values. This is useful for key rollover for example where several key
312 sets may exist with different names.
315 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
316 This was broken until now in 0.9.8 releases, such that the only way
317 a registered ENGINE could be used (assuming it initialises
318 successfully on the host) was to explicitly set it as the default
319 for the relevant algorithms. This is in contradiction with 0.9.7
320 behaviour and the documentation. With this fix, when an ENGINE is
321 registered into a given algorithm's table of implementations, the
322 'uptodate' flag is reset so that auto-discovery will be used next
323 time a new context for that algorithm attempts to select an
325 [Ian Lister (tweaked by Geoff Thorpe)]
327 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
328 implemention in the following ways:
330 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
333 Lack of BER streaming support means one pass streaming processing is
334 only supported if data is detached: setting the streaming flag is
335 ignored for embedded content.
337 CMS support is disabled by default and must be explicitly enabled
338 with the enable-cms configuration option.
341 *) Update the GMP engine glue to do direct copies between BIGNUM and
342 mpz_t when openssl and GMP use the same limb size. Otherwise the
343 existing "conversion via a text string export" trick is still used.
344 [Paul Sheer <paulsheer@gmail.com>]
346 *) Zlib compression BIO. This is a filter BIO which compressed and
347 uncompresses any data passed through it.
350 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
351 RFC3394 compatible AES key wrapping.
354 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
355 sets string data without copying. X509_ALGOR_set0() and
356 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
357 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
358 from an X509_ATTRIBUTE structure optionally checking it occurs only
359 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
363 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
364 to get the expected BN_FLG_CONSTTIME behavior.
365 [Bodo Moeller (Google)]
369 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
370 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
371 - added some more tests to do_tests.pl
372 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
373 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
374 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
375 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
376 - various changes to netware.pl to enable gcc-cross builds on Win32
378 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
379 - various changes to fix missing prototype warnings
380 - fixed x86nasm.pl to create correct asm files for NASM COFF output
381 - added AES, WHIRLPOOL and CPUID assembler code to build files
382 - added missing AES assembler make rules to mk1mf.pl
383 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
384 [Guenter Knauf <eflash@gmx.net>]
386 *) Implement certificate status request TLS extension defined in RFC3546.
387 A client can set the appropriate parameters and receive the encoded
388 OCSP response via a callback. A server can query the supplied parameters
389 and set the encoded OCSP response in the callback. Add simplified examples
390 to s_client and s_server.
393 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
396 + Binary incompatibility of ssl_ctx_st structure
397 + DTLS interoperation with non-compliant servers
398 + Don't call get_session_cb() without proposed session
399 + Fix ia64 assembler code
400 [Andy Polyakov, Steve Henson]
402 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
404 *) DTLS Handshake overhaul. There were longstanding issues with
405 OpenSSL DTLS implementation, which were making it impossible for
406 RFC 4347 compliant client to communicate with OpenSSL server.
407 Unfortunately just fixing these incompatibilities would "cut off"
408 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
409 server keeps tolerating non RFC compliant syntax. The opposite is
410 not true, 0.9.8f client can not communicate with earlier server.
411 This update even addresses CVE-2007-4995.
414 *) Changes to avoid need for function casts in OpenSSL: some compilers
415 (gcc 4.2 and later) reject their use.
416 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
419 *) Add RFC4507 support to OpenSSL. This includes the corrections in
420 RFC4507bis. The encrypted ticket format is an encrypted encoded
421 SSL_SESSION structure, that way new session features are automatically
424 If a client application caches session in an SSL_SESSION structure
425 support is transparent because tickets are now stored in the encoded
428 The SSL_CTX structure automatically generates keys for ticket
429 protection in servers so again support should be possible
430 with no application modification.
432 If a client or server wishes to disable RFC4507 support then the option
433 SSL_OP_NO_TICKET can be set.
435 Add a TLS extension debugging callback to allow the contents of any client
436 or server extensions to be examined.
438 This work was sponsored by Google.
441 *) Add initial support for TLS extensions, specifically for the server_name
442 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
443 have new members for a host name. The SSL data structure has an
444 additional member SSL_CTX *initial_ctx so that new sessions can be
445 stored in that context to allow for session resumption, even after the
446 SSL has been switched to a new SSL_CTX in reaction to a client's
447 server_name extension.
449 New functions (subject to change):
452 SSL_get_servername_type()
455 New CTRL codes and macros (subject to change):
457 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
458 - SSL_CTX_set_tlsext_servername_callback()
459 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
460 - SSL_CTX_set_tlsext_servername_arg()
461 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
463 openssl s_client has a new '-servername ...' option.
465 openssl s_server has new options '-servername_host ...', '-cert2 ...',
466 '-key2 ...', '-servername_fatal' (subject to change). This allows
467 testing the HostName extension for a specific single host name ('-cert'
468 and '-key' remain fallbacks for handshakes without HostName
469 negotiation). If the unrecogninzed_name alert has to be sent, this by
470 default is a warning; it becomes fatal with the '-servername_fatal'
473 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
475 *) Add AES and SSE2 assembly language support to VC++ build.
478 *) Mitigate attack on final subtraction in Montgomery reduction.
481 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
482 (which previously caused an internal error).
485 *) Squeeze another 10% out of IGE mode when in != out.
488 *) AES IGE mode speedup.
489 [Dean Gaudet (Google)]
491 *) Add the Korean symmetric 128-bit cipher SEED (see
492 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
493 add SEED ciphersuites from RFC 4162:
495 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
496 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
497 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
498 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
500 To minimize changes between patchlevels in the OpenSSL 0.9.8
501 series, SEED remains excluded from compilation unless OpenSSL
502 is configured with 'enable-seed'.
505 *) Mitigate branch prediction attacks, which can be practical if a
506 single processor is shared, allowing a spy process to extract
507 information. For detailed background information, see
508 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
509 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
510 and Necessary Software Countermeasures"). The core of the change
511 are new versions BN_div_no_branch() and
512 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
513 respectively, which are slower, but avoid the security-relevant
514 conditional branches. These are automatically called by BN_div()
515 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
516 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
517 remove a conditional branch.
519 BN_FLG_CONSTTIME is the new name for the previous
520 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
521 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
522 in the exponent causes BN_mod_exp_mont() to use the alternative
523 implementation in BN_mod_exp_mont_consttime().) The old name
524 remains as a deprecated alias.
526 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
527 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
528 constant-time implementations for more than just exponentiation.
529 Here too the old name is kept as a deprecated alias.
531 BN_BLINDING_new() will now use BN_dup() for the modulus so that
532 the BN_BLINDING structure gets an independent copy of the
533 modulus. This means that the previous "BIGNUM *m" argument to
534 BN_BLINDING_new() and to BN_BLINDING_create_param() now
535 essentially becomes "const BIGNUM *m", although we can't actually
536 change this in the header file before 0.9.9. It allows
537 RSA_setup_blinding() to use BN_with_flags() on the modulus to
538 enable BN_FLG_CONSTTIME.
540 [Matthew D Wood (Intel Corp)]
542 *) In the SSL/TLS server implementation, be strict about session ID
543 context matching (which matters if an application uses a single
544 external cache for different purposes). Previously,
545 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
546 set. This did ensure strict client verification, but meant that,
547 with applications using a single external cache for quite
548 different requirements, clients could circumvent ciphersuite
549 restrictions for a given session ID context by starting a session
550 in a different context.
553 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
554 a ciphersuite string such as "DEFAULT:RSA" cannot enable
555 authentication-only ciphersuites.
558 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
559 not complete and could lead to a possible single byte overflow
560 (CVE-2007-5135) [Ben Laurie]
562 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
564 *) Since AES128 and AES256 (and similarly Camellia128 and
565 Camellia256) share a single mask bit in the logic of
566 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
567 kludge to work properly if AES128 is available and AES256 isn't
568 (or if Camellia128 is available and Camellia256 isn't).
571 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
572 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
573 When a point or a seed is encoded in a BIT STRING, we need to
574 prevent the removal of trailing zero bits to get the proper DER
575 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
576 of a NamedBitList, for which trailing 0 bits need to be removed.)
579 *) Have SSL/TLS server implementation tolerate "mismatched" record
580 protocol version while receiving ClientHello even if the
581 ClientHello is fragmented. (The server can't insist on the
582 particular protocol version it has chosen before the ServerHello
583 message has informed the client about his choice.)
586 *) Add RFC 3779 support.
587 [Rob Austein for ARIN, Ben Laurie]
589 *) Load error codes if they are not already present instead of using a
590 static variable. This allows them to be cleanly unloaded and reloaded.
591 Improve header file function name parsing.
594 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
595 or CAPABILITY handshake as required by RFCs.
598 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
600 *) Introduce limits to prevent malicious keys being able to
601 cause a denial of service. (CVE-2006-2940)
602 [Steve Henson, Bodo Moeller]
604 *) Fix ASN.1 parsing of certain invalid structures that can result
605 in a denial of service. (CVE-2006-2937) [Steve Henson]
607 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
608 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
610 *) Fix SSL client code which could crash if connecting to a
611 malicious SSLv2 server. (CVE-2006-4343)
612 [Tavis Ormandy and Will Drewry, Google Security Team]
614 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
615 match only those. Before that, "AES256-SHA" would be interpreted
616 as a pattern and match "AES128-SHA" too (since AES128-SHA got
617 the same strength classification in 0.9.7h) as we currently only
618 have a single AES bit in the ciphersuite description bitmap.
619 That change, however, also applied to ciphersuite strings such as
620 "RC4-MD5" that intentionally matched multiple ciphersuites --
621 namely, SSL 2.0 ciphersuites in addition to the more common ones
622 from SSL 3.0/TLS 1.0.
624 So we change the selection algorithm again: Naming an explicit
625 ciphersuite selects this one ciphersuite, and any other similar
626 ciphersuite (same bitmap) from *other* protocol versions.
627 Thus, "RC4-MD5" again will properly select both the SSL 2.0
628 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
630 Since SSL 2.0 does not have any ciphersuites for which the
631 128/256 bit distinction would be relevant, this works for now.
632 The proper fix will be to use different bits for AES128 and
633 AES256, which would have avoided the problems from the beginning;
634 however, bits are scarce, so we can only do this in a new release
635 (not just a patchlevel) when we can change the SSL_CIPHER
636 definition to split the single 'unsigned long mask' bitmap into
637 multiple values to extend the available space.
641 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
643 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
644 (CVE-2006-4339) [Ben Laurie and Google Security Team]
646 *) Add AES IGE and biIGE modes.
649 *) Change the Unix randomness entropy gathering to use poll() when
650 possible instead of select(), since the latter has some
651 undesirable limitations.
652 [Darryl Miles via Richard Levitte and Bodo Moeller]
654 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
655 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
656 cannot be implicitly activated as part of, e.g., the "AES" alias.
657 However, please upgrade to OpenSSL 0.9.9[-dev] for
658 non-experimental use of the ECC ciphersuites to get TLS extension
659 support, which is required for curve and point format negotiation
660 to avoid potential handshake problems.
663 *) Disable rogue ciphersuites:
665 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
666 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
667 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
669 The latter two were purportedly from
670 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
673 Also deactivate the remaining ciphersuites from
674 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
675 unofficial, and the ID has long expired.
678 *) Fix RSA blinding Heisenbug (problems sometimes occured on
679 dual-core machines) and other potential thread-safety issues.
682 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
683 versions), which is now available for royalty-free use
684 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
685 Also, add Camellia TLS ciphersuites from RFC 4132.
687 To minimize changes between patchlevels in the OpenSSL 0.9.8
688 series, Camellia remains excluded from compilation unless OpenSSL
689 is configured with 'enable-camellia'.
692 *) Disable the padding bug check when compression is in use. The padding
693 bug check assumes the first packet is of even length, this is not
694 necessarily true if compresssion is enabled and can result in false
695 positives causing handshake failure. The actual bug test is ancient
696 code so it is hoped that implementations will either have fixed it by
697 now or any which still have the bug do not support compression.
700 Changes between 0.9.8a and 0.9.8b [04 May 2006]
702 *) When applying a cipher rule check to see if string match is an explicit
703 cipher suite and only match that one cipher suite if it is.
706 *) Link in manifests for VC++ if needed.
707 [Austin Ziegler <halostatue@gmail.com>]
709 *) Update support for ECC-based TLS ciphersuites according to
710 draft-ietf-tls-ecc-12.txt with proposed changes (but without
711 TLS extensions, which are supported starting with the 0.9.9
712 branch, not in the OpenSSL 0.9.8 branch).
715 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
716 opaque EVP_CIPHER_CTX handling.
719 *) Fixes and enhancements to zlib compression code. We now only use
720 "zlib1.dll" and use the default __cdecl calling convention on Win32
721 to conform with the standards mentioned here:
722 http://www.zlib.net/DLL_FAQ.txt
723 Static zlib linking now works on Windows and the new --with-zlib-include
724 --with-zlib-lib options to Configure can be used to supply the location
725 of the headers and library. Gracefully handle case where zlib library
729 *) Several fixes and enhancements to the OID generation code. The old code
730 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
731 handle numbers larger than ULONG_MAX, truncated printing and had a
732 non standard OBJ_obj2txt() behaviour.
735 *) Add support for building of engines under engine/ as shared libraries
736 under VC++ build system.
739 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
740 Hopefully, we will not see any false combination of paths any more.
743 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
745 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
746 (part of SSL_OP_ALL). This option used to disable the
747 countermeasure against man-in-the-middle protocol-version
748 rollback in the SSL 2.0 server implementation, which is a bad
749 idea. (CVE-2005-2969)
751 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
752 for Information Security, National Institute of Advanced Industrial
753 Science and Technology [AIST], Japan)]
755 *) Add two function to clear and return the verify parameter flags.
758 *) Keep cipherlists sorted in the source instead of sorting them at
759 runtime, thus removing the need for a lock.
762 *) Avoid some small subgroup attacks in Diffie-Hellman.
763 [Nick Mathewson and Ben Laurie]
765 *) Add functions for well-known primes.
768 *) Extended Windows CE support.
769 [Satoshi Nakamura and Andy Polyakov]
771 *) Initialize SSL_METHOD structures at compile time instead of during
772 runtime, thus removing the need for a lock.
775 *) Make PKCS7_decrypt() work even if no certificate is supplied by
776 attempting to decrypt each encrypted key in turn. Add support to
780 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
782 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
785 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
788 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
789 key into the same file any more.
792 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
795 *) Add -utf8 command line and config file option to 'ca'.
796 [Stefan <stf@udoma.org]
798 *) Removed the macro des_crypt(), as it seems to conflict with some
799 libraries. Use DES_crypt().
802 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
803 involves renaming the source and generated shared-libs for
804 both. The engines will accept the corrected or legacy ids
805 ('ncipher' and '4758_cca' respectively) when binding. NB,
806 this only applies when building 'shared'.
807 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
809 *) Add attribute functions to EVP_PKEY structure. Modify
810 PKCS12_create() to recognize a CSP name attribute and
811 use it. Make -CSP option work again in pkcs12 utility.
814 *) Add new functionality to the bn blinding code:
815 - automatic re-creation of the BN_BLINDING parameters after
816 a fixed number of uses (currently 32)
817 - add new function for parameter creation
818 - introduce flags to control the update behaviour of the
819 BN_BLINDING parameters
820 - hide BN_BLINDING structure
821 Add a second BN_BLINDING slot to the RSA structure to improve
822 performance when a single RSA object is shared among several
826 *) Add support for DTLS.
827 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
829 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
830 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
833 *) Remove buggy and incompletet DH cert support from
834 ssl/ssl_rsa.c and ssl/s3_both.c
837 *) Use SHA-1 instead of MD5 as the default digest algorithm for
838 the apps/openssl applications.
841 *) Compile clean with "-Wall -Wmissing-prototypes
842 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
843 DEBUG_SAFESTACK must also be set.
846 *) Change ./Configure so that certain algorithms can be disabled by default.
847 The new counterpiece to "no-xxx" is "enable-xxx".
849 The patented RC5 and MDC2 algorithms will now be disabled unless
850 "enable-rc5" and "enable-mdc2", respectively, are specified.
852 (IDEA remains enabled despite being patented. This is because IDEA
853 is frequently required for interoperability, and there is no license
854 fee for non-commercial use. As before, "no-idea" can be used to
855 avoid this algorithm.)
859 *) Add processing of proxy certificates (see RFC 3820). This work was
860 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
861 EGEE (Enabling Grids for E-science in Europe).
864 *) RC4 performance overhaul on modern architectures/implementations, such
865 as Intel P4, IA-64 and AMD64.
868 *) New utility extract-section.pl. This can be used specify an alternative
869 section number in a pod file instead of having to treat each file as
870 a separate case in Makefile. This can be done by adding two lines to the
873 =for comment openssl_section:XXX
875 The blank line is mandatory.
879 *) New arguments -certform, -keyform and -pass for s_client and s_server
880 to allow alternative format key and certificate files and passphrase
884 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
885 update associated structures and add various utility functions.
887 Add new policy related verify parameters, include policy checking in
888 standard verify code. Enhance 'smime' application with extra parameters
889 to support policy checking and print out.
892 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
893 Nehemiah processors. These extensions support AES encryption in hardware
894 as well as RNG (though RNG support is currently disabled).
895 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
897 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
900 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
901 [Andy Polyakov and a number of other people]
903 *) Improved PowerPC platform support. Most notably BIGNUM assembler
904 implementation contributed by IBM.
905 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
907 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
908 exponent rather than 'unsigned long'. There is a corresponding change to
909 the new 'rsa_keygen' element of the RSA_METHOD structure.
910 [Jelte Jansen, Geoff Thorpe]
912 *) Functionality for creating the initial serial number file is now
913 moved from CA.pl to the 'ca' utility with a new option -create_serial.
915 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
916 number file to 1, which is bound to cause problems. To avoid
917 the problems while respecting compatibility between different 0.9.7
918 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
919 CA.pl for serial number initialization. With the new release 0.9.8,
920 we can fix the problem directly in the 'ca' utility.)
923 *) Reduced header interdepencies by declaring more opaque objects in
924 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
925 give fewer recursive includes, which could break lazy source code - so
926 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
927 developers should define this symbol when building and using openssl to
928 ensure they track the recommended behaviour, interfaces, [etc], but
929 backwards-compatible behaviour prevails when this isn't defined.
932 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
935 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
936 This will generate a random key of the appropriate length based on the
937 cipher context. The EVP_CIPHER can provide its own random key generation
938 routine to support keys of a specific form. This is used in the des and
939 3des routines to generate a key of the correct parity. Update S/MIME
940 code to use new functions and hence generate correct parity DES keys.
941 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
942 valid (weak or incorrect parity).
945 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
946 as looking them up. This is useful when the verified structure may contain
947 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
948 present unless the new PKCS7_NO_CRL flag is asserted.
951 *) Extend ASN1 oid configuration module. It now additionally accepts the
954 shortName = some long name, 1.2.3.4
957 *) Reimplemented the BN_CTX implementation. There is now no more static
958 limitation on the number of variables it can handle nor the depth of the
959 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
960 information can now expand as required, and rather than having a single
961 static array of bignums, BN_CTX now uses a linked-list of such arrays
962 allowing it to expand on demand whilst maintaining the usefulness of
966 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
967 to allow all RSA operations to function using a single BN_CTX.
970 *) Preliminary support for certificate policy evaluation and checking. This
971 is initially intended to pass the tests outlined in "Conformance Testing
972 of Relying Party Client Certificate Path Processing Logic" v1.07.
975 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
976 remained unused and not that useful. A variety of other little bignum
977 tweaks and fixes have also been made continuing on from the audit (see
981 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
982 associated ASN1, EVP and SSL functions and old ASN1 macros.
985 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
986 and this should never fail. So the return value from the use of
987 BN_set_word() (which can fail due to needless expansion) is now deprecated;
988 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
991 *) BN_CTX_get() should return zero-valued bignums, providing the same
992 initialised value as BN_new().
993 [Geoff Thorpe, suggested by Ulf Möller]
995 *) Support for inhibitAnyPolicy certificate extension.
998 *) An audit of the BIGNUM code is underway, for which debugging code is
999 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
1000 is considered valid when processing BIGNUMs, and causes execution to
1001 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
1002 further steps are taken to deliberately pollute unused data in BIGNUM
1003 structures to try and expose faulty code further on. For now, openssl will
1004 (in its default mode of operation) continue to tolerate the inconsistent
1005 forms that it has tolerated in the past, but authors and packagers should
1006 consider trying openssl and their own applications when compiled with
1007 these debugging symbols defined. It will help highlight potential bugs in
1008 their own code, and will improve the test coverage for OpenSSL itself. At
1009 some point, these tighter rules will become openssl's default to improve
1010 maintainability, though the assert()s and other overheads will remain only
1011 in debugging configurations. See bn.h for more details.
1012 [Geoff Thorpe, Nils Larsch, Ulf Möller]
1014 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
1015 that can only be obtained through BN_CTX_new() (which implicitly
1016 initialises it). The presence of this function only made it possible
1017 to overwrite an existing structure (and cause memory leaks).
1020 *) Because of the callback-based approach for implementing LHASH as a
1021 template type, lh_insert() adds opaque objects to hash-tables and
1022 lh_doall() or lh_doall_arg() are typically used with a destructor callback
1023 to clean up those corresponding objects before destroying the hash table
1024 (and losing the object pointers). So some over-zealous constifications in
1025 LHASH have been relaxed so that lh_insert() does not take (nor store) the
1026 objects as "const" and the lh_doall[_arg] callback wrappers are not
1027 prototyped to have "const" restrictions on the object pointers they are
1028 given (and so aren't required to cast them away any more).
1031 *) The tmdiff.h API was so ugly and minimal that our own timing utility
1032 (speed) prefers to use its own implementation. The two implementations
1033 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
1034 its object type properly exposed (MS_TM) instead of casting to/from "char
1035 *". This may still change yet if someone realises MS_TM and "ms_time_***"
1036 aren't necessarily the greatest nomenclatures - but this is what was used
1037 internally to the implementation so I've used that for now.
1040 *) Ensure that deprecated functions do not get compiled when
1041 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
1042 the self-tests were still using deprecated key-generation functions so
1043 these have been updated also.
1046 *) Reorganise PKCS#7 code to separate the digest location functionality
1047 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
1048 New function PKCS7_set_digest() to set the digest type for PKCS#7
1049 digestedData type. Add additional code to correctly generate the
1050 digestedData type and add support for this type in PKCS7 initialization
1054 *) New function PKCS7_set0_type_other() this initializes a PKCS7
1055 structure of type "other".
1058 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
1059 sure the loop does correctly stop and breaking ("division by zero")
1060 modulus operations are not performed. The (pre-generated) prime
1061 table crypto/bn/bn_prime.h was already correct, but it could not be
1062 re-generated on some platforms because of the "division by zero"
1063 situation in the script.
1064 [Ralf S. Engelschall]
1066 *) Update support for ECC-based TLS ciphersuites according to
1067 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
1068 SHA-1 now is only used for "small" curves (where the
1069 representation of a field element takes up to 24 bytes); for
1070 larger curves, the field element resulting from ECDH is directly
1071 used as premaster secret.
1072 [Douglas Stebila (Sun Microsystems Laboratories)]
1074 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
1075 curve secp160r1 to the tests.
1076 [Douglas Stebila (Sun Microsystems Laboratories)]
1078 *) Add the possibility to load symbols globally with DSO.
1079 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
1081 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
1082 control of the error stack.
1085 *) Add support for STORE in ENGINE.
1088 *) Add the STORE type. The intention is to provide a common interface
1089 to certificate and key stores, be they simple file-based stores, or
1090 HSM-type store, or LDAP stores, or...
1091 NOTE: The code is currently UNTESTED and isn't really used anywhere.
1094 *) Add a generic structure called OPENSSL_ITEM. This can be used to
1095 pass a list of arguments to any function as well as provide a way
1096 for a function to pass data back to the caller.
1099 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
1100 works like BUF_strdup() but can be used to duplicate a portion of
1101 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
1105 *) Add the function sk_find_ex() which works like sk_find(), but will
1106 return an index to an element even if an exact match couldn't be
1107 found. The index is guaranteed to point at the element where the
1108 searched-for key would be inserted to preserve sorting order.
1111 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
1112 takes an extra flags argument for optional functionality. Currently,
1113 the following flags are defined:
1115 OBJ_BSEARCH_VALUE_ON_NOMATCH
1116 This one gets OBJ_bsearch_ex() to return a pointer to the first
1117 element where the comparing function returns a negative or zero
1120 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
1121 This one gets OBJ_bsearch_ex() to return a pointer to the first
1122 element where the comparing function returns zero. This is useful
1123 if there are more than one element where the comparing function
1127 *) Make it possible to create self-signed certificates with 'openssl ca'
1128 in such a way that the self-signed certificate becomes part of the
1129 CA database and uses the same mechanisms for serial number generation
1130 as all other certificate signing. The new flag '-selfsign' enables
1131 this functionality. Adapt CA.sh and CA.pl.in.
1134 *) Add functionality to check the public key of a certificate request
1135 against a given private. This is useful to check that a certificate
1136 request can be signed by that key (self-signing).
1139 *) Make it possible to have multiple active certificates with the same
1140 subject in the CA index file. This is done only if the keyword
1141 'unique_subject' is set to 'no' in the main CA section (default
1142 if 'CA_default') of the configuration file. The value is saved
1143 with the database itself in a separate index attribute file,
1144 named like the index file with '.attr' appended to the name.
1147 *) Generate muti valued AVAs using '+' notation in config files for
1151 *) Support for nameConstraints certificate extension.
1154 *) Support for policyConstraints certificate extension.
1157 *) Support for policyMappings certificate extension.
1160 *) Make sure the default DSA_METHOD implementation only uses its
1161 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
1162 and change its own handlers to be NULL so as to remove unnecessary
1163 indirection. This lets alternative implementations fallback to the
1164 default implementation more easily.
1167 *) Support for directoryName in GeneralName related extensions
1171 *) Make it possible to link applications using Makefile.shared.
1172 Make that possible even when linking against static libraries!
1175 *) Support for single pass processing for S/MIME signing. This now
1176 means that S/MIME signing can be done from a pipe, in addition
1177 cleartext signing (multipart/signed type) is effectively streaming
1178 and the signed data does not need to be all held in memory.
1180 This is done with a new flag PKCS7_STREAM. When this flag is set
1181 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
1182 is done after the data is output (and digests calculated) in
1183 SMIME_write_PKCS7().
1186 *) Add full support for -rpath/-R, both in shared libraries and
1187 applications, at least on the platforms where it's known how
1191 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
1192 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
1193 will now compute a table of multiples of the generator that
1194 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
1195 faster (notably in the case of a single point multiplication,
1196 scalar * generator).
1197 [Nils Larsch, Bodo Moeller]
1199 *) IPv6 support for certificate extensions. The various extensions
1200 which use the IP:a.b.c.d can now take IPv6 addresses using the
1201 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
1205 *) Added an ENGINE that implements RSA by performing private key
1206 exponentiations with the GMP library. The conversions to and from
1207 GMP's mpz_t format aren't optimised nor are any montgomery forms
1208 cached, and on x86 it appears OpenSSL's own performance has caught up.
1209 However there are likely to be other architectures where GMP could
1210 provide a boost. This ENGINE is not built in by default, but it can be
1211 specified at Configure time and should be accompanied by the necessary
1212 linker additions, eg;
1213 ./config -DOPENSSL_USE_GMP -lgmp
1216 *) "openssl engine" will not display ENGINE/DSO load failure errors when
1217 testing availability of engines with "-t" - the old behaviour is
1218 produced by increasing the feature's verbosity with "-tt".
1221 *) ECDSA routines: under certain error conditions uninitialized BN objects
1222 could be freed. Solution: make sure initialization is performed early
1223 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
1227 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
1228 and DH_METHOD (eg. by ENGINE implementations) to override the normal
1229 software implementations. For DSA and DH, parameter generation can
1230 also be overriden by providing the appropriate method callbacks.
1233 *) Change the "progress" mechanism used in key-generation and
1234 primality testing to functions that take a new BN_GENCB pointer in
1235 place of callback/argument pairs. The new API functions have "_ex"
1236 postfixes and the older functions are reimplemented as wrappers for
1237 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
1238 declarations of the old functions to help (graceful) attempts to
1239 migrate to the new functions. Also, the new key-generation API
1240 functions operate on a caller-supplied key-structure and return
1241 success/failure rather than returning a key or NULL - this is to
1242 help make "keygen" another member function of RSA_METHOD etc.
1244 Example for using the new callback interface:
1246 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
1250 BN_GENCB_set(&my_cb, my_callback, my_arg);
1252 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
1253 /* For the meaning of a, b in calls to my_callback(), see the
1254 * documentation of the function that calls the callback.
1255 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
1256 * my_callback should return 1 if it wants BN_is_prime_ex()
1257 * to continue, or 0 to stop.
1262 *) Change the ZLIB compression method to be stateful, and make it
1263 available to TLS with the number defined in
1264 draft-ietf-tls-compression-04.txt.
1267 *) Add the ASN.1 structures and functions for CertificatePair, which
1268 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
1270 CertificatePair ::= SEQUENCE {
1271 forward [0] Certificate OPTIONAL,
1272 reverse [1] Certificate OPTIONAL,
1273 -- at least one of the pair shall be present -- }
1275 Also implement the PEM functions to read and write certificate
1276 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
1278 This needed to be defined, mostly for the sake of the LDAP
1279 attribute crossCertificatePair, but may prove useful elsewhere as
1283 *) Make it possible to inhibit symlinking of shared libraries in
1284 Makefile.shared, for Cygwin's sake.
1287 *) Extend the BIGNUM API by creating a function
1288 void BN_set_negative(BIGNUM *a, int neg);
1289 and a macro that behave like
1290 int BN_is_negative(const BIGNUM *a);
1292 to avoid the need to access 'a->neg' directly in applications.
1295 *) Implement fast modular reduction for pseudo-Mersenne primes
1296 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
1297 EC_GROUP_new_curve_GFp() will now automatically use this
1299 [Nils Larsch <nla@trustcenter.de>]
1301 *) Add new lock type (CRYPTO_LOCK_BN).
1304 *) Change the ENGINE framework to automatically load engines
1305 dynamically from specific directories unless they could be
1306 found to already be built in or loaded. Move all the
1307 current engines except for the cryptodev one to a new
1309 The engines in engines/ are built as shared libraries if
1310 the "shared" options was given to ./Configure or ./config.
1311 Otherwise, they are inserted in libcrypto.a.
1312 /usr/local/ssl/engines is the default directory for dynamic
1313 engines, but that can be overriden at configure time through
1314 the usual use of --prefix and/or --openssldir, and at run
1315 time with the environment variable OPENSSL_ENGINES.
1316 [Geoff Thorpe and Richard Levitte]
1318 *) Add Makefile.shared, a helper makefile to build shared
1319 libraries. Addapt Makefile.org.
1322 *) Add version info to Win32 DLLs.
1323 [Peter 'Luna' Runestig" <peter@runestig.com>]
1325 *) Add new 'medium level' PKCS#12 API. Certificates and keys
1326 can be added using this API to created arbitrary PKCS#12
1327 files while avoiding the low level API.
1329 New options to PKCS12_create(), key or cert can be NULL and
1330 will then be omitted from the output file. The encryption
1331 algorithm NIDs can be set to -1 for no encryption, the mac
1332 iteration count can be set to 0 to omit the mac.
1334 Enhance pkcs12 utility by making the -nokeys and -nocerts
1335 options work when creating a PKCS#12 file. New option -nomac
1336 to omit the mac, NONE can be set for an encryption algorithm.
1337 New code is modified to use the enhanced PKCS12_create()
1338 instead of the low level API.
1341 *) Extend ASN1 encoder to support indefinite length constructed
1342 encoding. This can output sequences tags and octet strings in
1343 this form. Modify pk7_asn1.c to support indefinite length
1344 encoding. This is experimental and needs additional code to
1345 be useful, such as an ASN1 bio and some enhanced streaming
1348 Extend template encode functionality so that tagging is passed
1349 down to the template encoder.
1352 *) Let 'openssl req' fail if an argument to '-newkey' is not
1353 recognized instead of using RSA as a default.
1356 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
1357 As these are not official, they are not included in "ALL";
1358 the "ECCdraft" ciphersuite group alias can be used to select them.
1359 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
1361 *) Add ECDH engine support.
1362 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
1364 *) Add ECDH in new directory crypto/ecdh/.
1365 [Douglas Stebila (Sun Microsystems Laboratories)]
1367 *) Let BN_rand_range() abort with an error after 100 iterations
1368 without success (which indicates a broken PRNG).
1371 *) Change BN_mod_sqrt() so that it verifies that the input value
1372 is really the square of the return value. (Previously,
1373 BN_mod_sqrt would show GIGO behaviour.)
1376 *) Add named elliptic curves over binary fields from X9.62, SECG,
1377 and WAP/WTLS; add OIDs that were still missing.
1379 [Sheueling Chang Shantz and Douglas Stebila
1380 (Sun Microsystems Laboratories)]
1382 *) Extend the EC library for elliptic curves over binary fields
1383 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
1386 EC_GF2m_simple_method
1390 EC_GROUP_new_curve_GF2m
1391 EC_GROUP_set_curve_GF2m
1392 EC_GROUP_get_curve_GF2m
1393 EC_POINT_set_affine_coordinates_GF2m
1394 EC_POINT_get_affine_coordinates_GF2m
1395 EC_POINT_set_compressed_coordinates_GF2m
1397 Point compression for binary fields is disabled by default for
1398 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
1401 As binary polynomials are represented as BIGNUMs, various members
1402 of the EC_GROUP and EC_POINT data structures can be shared
1403 between the implementations for prime fields and binary fields;
1404 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
1405 are essentially identical to their ..._GFp counterparts.
1406 (For simplicity, the '..._GFp' prefix has been dropped from
1407 various internal method names.)
1409 An internal 'field_div' method (similar to 'field_mul' and
1410 'field_sqr') has been added; this is used only for binary fields.
1412 [Sheueling Chang Shantz and Douglas Stebila
1413 (Sun Microsystems Laboratories)]
1415 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
1416 through methods ('mul', 'precompute_mult').
1418 The generic implementations (now internally called 'ec_wNAF_mul'
1419 and 'ec_wNAF_precomputed_mult') remain the default if these
1420 methods are undefined.
1422 [Sheueling Chang Shantz and Douglas Stebila
1423 (Sun Microsystems Laboratories)]
1425 *) New function EC_GROUP_get_degree, which is defined through
1426 EC_METHOD. For curves over prime fields, this returns the bit
1427 length of the modulus.
1429 [Sheueling Chang Shantz and Douglas Stebila
1430 (Sun Microsystems Laboratories)]
1432 *) New functions EC_GROUP_dup, EC_POINT_dup.
1433 (These simply call ..._new and ..._copy).
1435 [Sheueling Chang Shantz and Douglas Stebila
1436 (Sun Microsystems Laboratories)]
1438 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
1439 Polynomials are represented as BIGNUMs (where the sign bit is not
1440 used) in the following functions [macros]:
1443 BN_GF2m_sub [= BN_GF2m_add]
1444 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
1445 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
1446 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
1448 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
1449 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
1450 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
1451 BN_GF2m_cmp [= BN_ucmp]
1453 (Note that only the 'mod' functions are actually for fields GF(2^m).
1454 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
1456 For some functions, an the irreducible polynomial defining a
1457 field can be given as an 'unsigned int[]' with strictly
1458 decreasing elements giving the indices of those bits that are set;
1459 i.e., p[] represents the polynomial
1460 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
1462 p[0] > p[1] > ... > p[k] = 0.
1463 This applies to the following functions:
1468 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
1469 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
1471 BN_GF2m_mod_sqrt_arr
1472 BN_GF2m_mod_solve_quad_arr
1476 Conversion can be performed by the following functions:
1481 bntest.c has additional tests for binary polynomial arithmetic.
1483 Two implementations for BN_GF2m_mod_div() are available.
1484 The default algorithm simply uses BN_GF2m_mod_inv() and
1485 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
1486 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
1487 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
1489 [Sheueling Chang Shantz and Douglas Stebila
1490 (Sun Microsystems Laboratories)]
1492 *) Add new error code 'ERR_R_DISABLED' that can be used when some
1493 functionality is disabled at compile-time.
1494 [Douglas Stebila <douglas.stebila@sun.com>]
1496 *) Change default behaviour of 'openssl asn1parse' so that more
1497 information is visible when viewing, e.g., a certificate:
1499 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
1500 mode the content of non-printable OCTET STRINGs is output in a
1501 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
1502 avoid the appearance of a printable string.
1503 [Nils Larsch <nla@trustcenter.de>]
1505 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
1507 EC_GROUP_set_asn1_flag()
1508 EC_GROUP_get_asn1_flag()
1509 EC_GROUP_set_point_conversion_form()
1510 EC_GROUP_get_point_conversion_form()
1511 These control ASN1 encoding details:
1512 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
1513 has been set to OPENSSL_EC_NAMED_CURVE.
1514 - Points are encoded in uncompressed form by default; options for
1515 asn1_for are as for point2oct, namely
1516 POINT_CONVERSION_COMPRESSED
1517 POINT_CONVERSION_UNCOMPRESSED
1518 POINT_CONVERSION_HYBRID
1520 Also add 'seed' and 'seed_len' members to EC_GROUP with access
1523 EC_GROUP_get0_seed()
1524 EC_GROUP_get_seed_len()
1525 This is used only for ASN1 purposes (so far).
1526 [Nils Larsch <nla@trustcenter.de>]
1528 *) Add 'field_type' member to EC_METHOD, which holds the NID
1529 of the appropriate field type OID. The new function
1530 EC_METHOD_get_field_type() returns this value.
1531 [Nils Larsch <nla@trustcenter.de>]
1536 EC_POINT_point2hex()
1537 EC_POINT_hex2point()
1538 providing useful interfaces to EC_POINT_point2oct() and
1539 EC_POINT_oct2point().
1540 [Nils Larsch <nla@trustcenter.de>]
1542 *) Change internals of the EC library so that the functions
1543 EC_GROUP_set_generator()
1544 EC_GROUP_get_generator()
1545 EC_GROUP_get_order()
1546 EC_GROUP_get_cofactor()
1547 are implemented directly in crypto/ec/ec_lib.c and not dispatched
1548 to methods, which would lead to unnecessary code duplication when
1549 adding different types of curves.
1550 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
1552 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
1553 arithmetic, and such that modified wNAFs are generated
1554 (which avoid length expansion in many cases).
1557 *) Add a function EC_GROUP_check_discriminant() (defined via
1558 EC_METHOD) that verifies that the curve discriminant is non-zero.
1560 Add a function EC_GROUP_check() that makes some sanity tests
1561 on a EC_GROUP, its generator and order. This includes
1562 EC_GROUP_check_discriminant().
1563 [Nils Larsch <nla@trustcenter.de>]
1565 *) Add ECDSA in new directory crypto/ecdsa/.
1567 Add applications 'openssl ecparam' and 'openssl ecdsa'
1568 (these are based on 'openssl dsaparam' and 'openssl dsa').
1570 ECDSA support is also included in various other files across the
1571 library. Most notably,
1572 - 'openssl req' now has a '-newkey ecdsa:file' option;
1573 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
1574 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
1575 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
1576 them suitable for ECDSA where domain parameters must be
1577 extracted before the specific public key;
1578 - ECDSA engine support has been added.
1579 [Nils Larsch <nla@trustcenter.de>]
1581 *) Include some named elliptic curves, and add OIDs from X9.62,
1582 SECG, and WAP/WTLS. Each curve can be obtained from the new
1584 EC_GROUP_new_by_curve_name(),
1585 and the list of available named curves can be obtained with
1586 EC_get_builtin_curves().
1587 Also add a 'curve_name' member to EC_GROUP objects, which can be
1589 EC_GROUP_set_curve_name()
1590 EC_GROUP_get_curve_name()
1591 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
1593 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
1594 was actually never needed) and in BN_mul(). The removal in BN_mul()
1595 required a small change in bn_mul_part_recursive() and the addition
1596 of the functions bn_cmp_part_words(), bn_sub_part_words() and
1597 bn_add_part_words(), which do the same thing as bn_cmp_words(),
1598 bn_sub_words() and bn_add_words() except they take arrays with
1602 Changes between 0.9.7m and 0.9.7n [xx XXX xxxx]
1604 *) In the SSL/TLS server implementation, be strict about session ID
1605 context matching (which matters if an application uses a single
1606 external cache for different purposes). Previously,
1607 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
1608 set. This did ensure strict client verification, but meant that,
1609 with applications using a single external cache for quite
1610 different requirements, clients could circumvent ciphersuite
1611 restrictions for a given session ID context by starting a session
1612 in a different context.
1615 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
1617 *) Cleanse PEM buffers before freeing them since they may contain
1619 [Benjamin Bennett <ben@psc.edu>]
1621 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1622 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1623 authentication-only ciphersuites.
1626 *) Since AES128 and AES256 share a single mask bit in the logic of
1627 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1628 kludge to work properly if AES128 is available and AES256 isn't.
1631 *) Expand security boundary to match 1.1.1 module.
1634 *) Remove redundant features: hash file source, editing of test vectors
1635 modify fipsld to use external fips_premain.c signature.
1638 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
1639 run algorithm test programs.
1642 *) Make algorithm test programs more tolerant of whitespace.
1645 *) Have SSL/TLS server implementation tolerate "mismatched" record
1646 protocol version while receiving ClientHello even if the
1647 ClientHello is fragmented. (The server can't insist on the
1648 particular protocol version it has chosen before the ServerHello
1649 message has informed the client about his choice.)
1652 *) Load error codes if they are not already present instead of using a
1653 static variable. This allows them to be cleanly unloaded and reloaded.
1656 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
1658 *) Introduce limits to prevent malicious keys being able to
1659 cause a denial of service. (CVE-2006-2940)
1660 [Steve Henson, Bodo Moeller]
1662 *) Fix ASN.1 parsing of certain invalid structures that can result
1663 in a denial of service. (CVE-2006-2937) [Steve Henson]
1665 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1666 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1668 *) Fix SSL client code which could crash if connecting to a
1669 malicious SSLv2 server. (CVE-2006-4343)
1670 [Tavis Ormandy and Will Drewry, Google Security Team]
1672 *) Change ciphersuite string processing so that an explicit
1673 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
1674 will no longer include "AES128-SHA"), and any other similar
1675 ciphersuite (same bitmap) from *other* protocol versions (so that
1676 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
1677 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
1678 changes from 0.9.8b and 0.9.8d.
1681 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
1683 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1684 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1686 *) Change the Unix randomness entropy gathering to use poll() when
1687 possible instead of select(), since the latter has some
1688 undesirable limitations.
1689 [Darryl Miles via Richard Levitte and Bodo Moeller]
1691 *) Disable rogue ciphersuites:
1693 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1694 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1695 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1697 The latter two were purportedly from
1698 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1701 Also deactive the remaining ciphersuites from
1702 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1703 unofficial, and the ID has long expired.
1706 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1707 dual-core machines) and other potential thread-safety issues.
1710 Changes between 0.9.7i and 0.9.7j [04 May 2006]
1712 *) Adapt fipsld and the build system to link against the validated FIPS
1713 module in FIPS mode.
1716 *) Fixes for VC++ 2005 build under Windows.
1719 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
1720 from a Windows bash shell such as MSYS. It is autodetected from the
1721 "config" script when run from a VC++ environment. Modify standard VC++
1722 build to use fipscanister.o from the GNU make build.
1725 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
1727 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
1728 The value now differs depending on if you build for FIPS or not.
1729 BEWARE! A program linked with a shared FIPSed libcrypto can't be
1730 safely run with a non-FIPSed libcrypto, as it may crash because of
1731 the difference induced by this change.
1734 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
1736 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1737 (part of SSL_OP_ALL). This option used to disable the
1738 countermeasure against man-in-the-middle protocol-version
1739 rollback in the SSL 2.0 server implementation, which is a bad
1740 idea. (CVE-2005-2969)
1742 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1743 for Information Security, National Institute of Advanced Industrial
1744 Science and Technology [AIST], Japan)]
1746 *) Minimal support for X9.31 signatures and PSS padding modes. This is
1747 mainly for FIPS compliance and not fully integrated at this stage.
1750 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
1751 the exponentiation using a fixed-length exponent. (Otherwise,
1752 the information leaked through timing could expose the secret key
1753 after many signatures; cf. Bleichenbacher's attack on DSA with
1757 *) Make a new fixed-window mod_exp implementation the default for
1758 RSA, DSA, and DH private-key operations so that the sequence of
1759 squares and multiplies and the memory access pattern are
1760 independent of the particular secret key. This will mitigate
1761 cache-timing and potential related attacks.
1763 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
1764 and this is automatically used by BN_mod_exp_mont() if the new flag
1765 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
1766 will use this BN flag for private exponents unless the flag
1767 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
1768 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
1770 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
1772 *) Change the client implementation for SSLv23_method() and
1773 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
1774 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
1775 (Previously, the SSL 2.0 backwards compatible Client Hello
1776 message format would be used even with SSL_OP_NO_SSLv2.)
1779 *) Add support for smime-type MIME parameter in S/MIME messages which some
1783 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
1784 a threadsafe manner. Modify rsa code to use new function and add calls
1785 to dsa and dh code (which had race conditions before).
1788 *) Include the fixed error library code in the C error file definitions
1789 instead of fixing them up at runtime. This keeps the error code
1790 structures constant.
1793 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
1795 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
1798 *) Fixes for newer kerberos headers. NB: the casts are needed because
1799 the 'length' field is signed on one version and unsigned on another
1800 with no (?) obvious way to tell the difference, without these VC++
1801 complains. Also the "definition" of FAR (blank) is no longer included
1802 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
1803 some needed definitions.
1806 *) Undo Cygwin change.
1809 *) Added support for proxy certificates according to RFC 3820.
1810 Because they may be a security thread to unaware applications,
1811 they must be explicitely allowed in run-time. See
1812 docs/HOWTO/proxy_certificates.txt for further information.
1815 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
1817 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
1818 server and client random values. Previously
1819 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
1820 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
1822 This change has negligible security impact because:
1824 1. Server and client random values still have 24 bytes of pseudo random
1827 2. Server and client random values are sent in the clear in the initial
1830 3. The master secret is derived using the premaster secret (48 bytes in
1831 size for static RSA ciphersuites) as well as client server and random
1834 The OpenSSL team would like to thank the UK NISCC for bringing this issue
1837 [Stephen Henson, reported by UK NISCC]
1839 *) Use Windows randomness collection on Cygwin.
1842 *) Fix hang in EGD/PRNGD query when communication socket is closed
1843 prematurely by EGD/PRNGD.
1844 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
1846 *) Prompt for pass phrases when appropriate for PKCS12 input format.
1849 *) Back-port of selected performance improvements from development
1850 branch, as well as improved support for PowerPC platforms.
1853 *) Add lots of checks for memory allocation failure, error codes to indicate
1854 failure and freeing up memory if a failure occurs.
1855 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
1857 *) Add new -passin argument to dgst.
1860 *) Perform some character comparisons of different types in X509_NAME_cmp:
1861 this is needed for some certificates that reencode DNs into UTF8Strings
1862 (in violation of RFC3280) and can't or wont issue name rollover
1866 *) Make an explicit check during certificate validation to see that
1867 the CA setting in each certificate on the chain is correct. As a
1868 side effect always do the following basic checks on extensions,
1869 not just when there's an associated purpose to the check:
1871 - if there is an unhandled critical extension (unless the user
1872 has chosen to ignore this fault)
1873 - if the path length has been exceeded (if one is set at all)
1874 - that certain extensions fit the associated purpose (if one has
1878 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
1880 *) Avoid a race condition when CRLs are checked in a multi threaded
1881 environment. This would happen due to the reordering of the revoked
1882 entries during signature checking and serial number lookup. Now the
1883 encoding is cached and the serial number sort performed under a lock.
1884 Add new STACK function sk_is_sorted().
1887 *) Add Delta CRL to the extension code.
1890 *) Various fixes to s3_pkt.c so alerts are sent properly.
1891 [David Holmes <d.holmes@f5.com>]
1893 *) Reduce the chances of duplicate issuer name and serial numbers (in
1894 violation of RFC3280) using the OpenSSL certificate creation utilities.
1895 This is done by creating a random 64 bit value for the initial serial
1896 number when a serial number file is created or when a self signed
1897 certificate is created using 'openssl req -x509'. The initial serial
1898 number file is created using 'openssl x509 -next_serial' in CA.pl
1899 rather than being initialized to 1.
1902 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
1904 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
1905 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
1906 [Joe Orton, Steve Henson]
1908 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
1910 [Joe Orton, Steve Henson]
1912 *) Make it possible to have multiple active certificates with the same
1913 subject in the CA index file. This is done only if the keyword
1914 'unique_subject' is set to 'no' in the main CA section (default
1915 if 'CA_default') of the configuration file. The value is saved
1916 with the database itself in a separate index attribute file,
1917 named like the index file with '.attr' appended to the name.
1920 *) X509 verify fixes. Disable broken certificate workarounds when
1921 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
1922 keyUsage extension present. Don't accept CRLs with unhandled critical
1923 extensions: since verify currently doesn't process CRL extensions this
1924 rejects a CRL with *any* critical extensions. Add new verify error codes
1928 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
1929 A clarification of RFC2560 will require the use of OCTET STRINGs and
1930 some implementations cannot handle the current raw format. Since OpenSSL
1931 copies and compares OCSP nonces as opaque blobs without any attempt at
1932 parsing them this should not create any compatibility issues.
1935 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
1936 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
1937 this HMAC (and other) operations are several times slower than OpenSSL
1941 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
1942 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1944 *) Use the correct content when signing type "other".
1947 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
1949 *) Fix various bugs revealed by running the NISCC test suite:
1951 Stop out of bounds reads in the ASN1 code when presented with
1952 invalid tags (CVE-2003-0543 and CVE-2003-0544).
1954 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
1956 If verify callback ignores invalid public key errors don't try to check
1957 certificate signature with the NULL public key.
1961 *) New -ignore_err option in ocsp application to stop the server
1962 exiting on the first error in a request.
1965 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
1966 if the server requested one: as stated in TLS 1.0 and SSL 3.0
1970 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
1971 extra data after the compression methods not only for TLS 1.0
1972 but also for SSL 3.0 (as required by the specification).
1973 [Bodo Moeller; problem pointed out by Matthias Loepfe]
1975 *) Change X509_certificate_type() to mark the key as exported/exportable
1976 when it's 512 *bits* long, not 512 bytes.
1979 *) Change AES_cbc_encrypt() so it outputs exact multiple of
1980 blocks during encryption.
1983 *) Various fixes to base64 BIO and non blocking I/O. On write
1984 flushes were not handled properly if the BIO retried. On read
1985 data was not being buffered properly and had various logic bugs.
1986 This also affects blocking I/O when the data being decoded is a
1990 *) Various S/MIME bugfixes and compatibility changes:
1991 output correct application/pkcs7 MIME type if
1992 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
1993 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
1994 of files as .eml work). Correctly handle very long lines in MIME
1998 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
2000 *) Countermeasure against the Klima-Pokorny-Rosa extension of
2001 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
2002 a protocol version number mismatch like a decryption error
2003 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
2006 *) Turn on RSA blinding by default in the default implementation
2007 to avoid a timing attack. Applications that don't want it can call
2008 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
2009 They would be ill-advised to do so in most cases.
2010 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
2012 *) Change RSA blinding code so that it works when the PRNG is not
2013 seeded (in this case, the secret RSA exponent is abused as
2014 an unpredictable seed -- if it is not unpredictable, there
2015 is no point in blinding anyway). Make RSA blinding thread-safe
2016 by remembering the creator's thread ID in rsa->blinding and
2017 having all other threads use local one-time blinding factors
2018 (this requires more computation than sharing rsa->blinding, but
2019 avoids excessive locking; and if an RSA object is not shared
2020 between threads, blinding will still be very fast).
2023 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
2024 ENGINE as defaults for all supported algorithms irrespective of
2025 the 'flags' parameter. 'flags' is now honoured, so applications
2026 should make sure they are passing it correctly.
2029 *) Target "mingw" now allows native Windows code to be generated in
2030 the Cygwin environment as well as with the MinGW compiler.
2033 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
2035 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
2036 via timing by performing a MAC computation even if incorrrect
2037 block cipher padding has been found. This is a countermeasure
2038 against active attacks where the attacker has to distinguish
2039 between bad padding and a MAC verification error. (CVE-2003-0078)
2041 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
2042 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
2043 Martin Vuagnoux (EPFL, Ilion)]
2045 *) Make the no-err option work as intended. The intention with no-err
2046 is not to have the whole error stack handling routines removed from
2047 libcrypto, it's only intended to remove all the function name and
2048 reason texts, thereby removing some of the footprint that may not
2049 be interesting if those errors aren't displayed anyway.
2051 NOTE: it's still possible for any application or module to have it's
2052 own set of error texts inserted. The routines are there, just not
2053 used by default when no-err is given.
2056 *) Add support for FreeBSD on IA64.
2057 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
2059 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
2060 Kerberos function mit_des_cbc_cksum(). Before this change,
2061 the value returned by DES_cbc_cksum() was like the one from
2062 mit_des_cbc_cksum(), except the bytes were swapped.
2063 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
2065 *) Allow an application to disable the automatic SSL chain building.
2066 Before this a rather primitive chain build was always performed in
2067 ssl3_output_cert_chain(): an application had no way to send the
2068 correct chain if the automatic operation produced an incorrect result.
2070 Now the chain builder is disabled if either:
2072 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
2074 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
2076 The reasoning behind this is that an application would not want the
2077 auto chain building to take place if extra chain certificates are
2078 present and it might also want a means of sending no additional
2079 certificates (for example the chain has two certificates and the
2083 *) Add the possibility to build without the ENGINE framework.
2084 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2086 *) Under Win32 gmtime() can return NULL: check return value in
2087 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
2090 *) DSA routines: under certain error conditions uninitialized BN objects
2091 could be freed. Solution: make sure initialization is performed early
2092 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
2093 Nils Larsch <nla@trustcenter.de> via PR#459)
2096 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
2097 checked on reconnect on the client side, therefore session resumption
2098 could still fail with a "ssl session id is different" error. This
2099 behaviour is masked when SSL_OP_ALL is used due to
2100 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
2101 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2102 followup to PR #377.
2105 *) IA-32 assembler support enhancements: unified ELF targets, support
2106 for SCO/Caldera platforms, fix for Cygwin shared build.
2109 *) Add support for FreeBSD on sparc64. As a consequence, support for
2110 FreeBSD on non-x86 processors is separate from x86 processors on
2111 the config script, much like the NetBSD support.
2112 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
2114 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
2116 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
2119 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
2120 code (06) was taken as the first octet of the session ID and the last
2121 octet was ignored consequently. As a result SSLv2 client side session
2122 caching could not have worked due to the session ID mismatch between
2124 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2128 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
2129 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
2133 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
2134 seems that in spite of existing for more than a year, many application
2135 author have done nothing to provide the necessary callbacks, which
2136 means that this particular engine will not work properly anywhere.
2137 This is a very unfortunate situation which forces us, in the name
2138 of usability, to give the hw_ncipher.c a static lock, which is part
2140 NOTE: This is for the 0.9.7 series ONLY. This hack will never
2141 appear in 0.9.8 or later. We EXPECT application authors to have
2142 dealt properly with this when 0.9.8 is released (unless we actually
2143 make such changes in the libcrypto locking code that changes will
2144 have to be made anyway).
2147 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
2148 octets have been read, EOF or an error occurs. Without this change
2149 some truncated ASN1 structures will not produce an error.
2152 *) Disable Heimdal support, since it hasn't been fully implemented.
2153 Still give the possibility to force the use of Heimdal, but with
2154 warnings and a request that patches get sent to openssl-dev.
2157 *) Add the VC-CE target, introduce the WINCE sysname, and add
2158 INSTALL.WCE and appropriate conditionals to make it build.
2159 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2161 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
2162 cygssl-x.y.z.dll, where x, y and z are the major, minor and
2163 edit numbers of the version.
2164 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
2166 *) Introduce safe string copy and catenation functions
2167 (BUF_strlcpy() and BUF_strlcat()).
2168 [Ben Laurie (CHATS) and Richard Levitte]
2170 *) Avoid using fixed-size buffers for one-line DNs.
2171 [Ben Laurie (CHATS)]
2173 *) Add BUF_MEM_grow_clean() to avoid information leakage when
2174 resizing buffers containing secrets, and use where appropriate.
2175 [Ben Laurie (CHATS)]
2177 *) Avoid using fixed size buffers for configuration file location.
2178 [Ben Laurie (CHATS)]
2180 *) Avoid filename truncation for various CA files.
2181 [Ben Laurie (CHATS)]
2183 *) Use sizeof in preference to magic numbers.
2184 [Ben Laurie (CHATS)]
2186 *) Avoid filename truncation in cert requests.
2187 [Ben Laurie (CHATS)]
2189 *) Add assertions to check for (supposedly impossible) buffer
2191 [Ben Laurie (CHATS)]
2193 *) Don't cache truncated DNS entries in the local cache (this could
2194 potentially lead to a spoofing attack).
2195 [Ben Laurie (CHATS)]
2197 *) Fix various buffers to be large enough for hex/decimal
2198 representations in a platform independent manner.
2199 [Ben Laurie (CHATS)]
2201 *) Add CRYPTO_realloc_clean() to avoid information leakage when
2202 resizing buffers containing secrets, and use where appropriate.
2203 [Ben Laurie (CHATS)]
2205 *) Add BIO_indent() to avoid much slightly worrying code to do
2207 [Ben Laurie (CHATS)]
2209 *) Convert sprintf()/BIO_puts() to BIO_printf().
2210 [Ben Laurie (CHATS)]
2212 *) buffer_gets() could terminate with the buffer only half
2214 [Ben Laurie (CHATS)]
2216 *) Add assertions to prevent user-supplied crypto functions from
2217 overflowing internal buffers by having large block sizes, etc.
2218 [Ben Laurie (CHATS)]
2220 *) New OPENSSL_assert() macro (similar to assert(), but enabled
2222 [Ben Laurie (CHATS)]
2224 *) Eliminate unused copy of key in RC4.
2225 [Ben Laurie (CHATS)]
2227 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
2228 [Ben Laurie (CHATS)]
2230 *) Fix off-by-one error in EGD path.
2231 [Ben Laurie (CHATS)]
2233 *) If RANDFILE path is too long, ignore instead of truncating.
2234 [Ben Laurie (CHATS)]
2236 *) Eliminate unused and incorrectly sized X.509 structure
2238 [Ben Laurie (CHATS)]
2240 *) Eliminate unused and dangerous function knumber().
2241 [Ben Laurie (CHATS)]
2243 *) Eliminate unused and dangerous structure, KSSL_ERR.
2244 [Ben Laurie (CHATS)]
2246 *) Protect against overlong session ID context length in an encoded
2247 session object. Since these are local, this does not appear to be
2249 [Ben Laurie (CHATS)]
2251 *) Change from security patch (see 0.9.6e below) that did not affect
2252 the 0.9.6 release series:
2254 Remote buffer overflow in SSL3 protocol - an attacker could
2255 supply an oversized master key in Kerberos-enabled versions.
2257 [Ben Laurie (CHATS)]
2259 *) Change the SSL kerb5 codes to match RFC 2712.
2262 *) Make -nameopt work fully for req and add -reqopt switch.
2263 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
2265 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
2266 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
2268 *) Make sure tests can be performed even if the corresponding algorithms
2269 have been removed entirely. This was also the last step to make
2270 OpenSSL compilable with DJGPP under all reasonable conditions.
2271 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
2273 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
2274 to allow version independent disabling of normally unselected ciphers,
2275 which may be activated as a side-effect of selecting a single cipher.
2277 (E.g., cipher list string "RSA" enables ciphersuites that are left
2278 out of "ALL" because they do not provide symmetric encryption.
2279 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
2280 [Lutz Jaenicke, Bodo Moeller]
2282 *) Add appropriate support for separate platform-dependent build
2283 directories. The recommended way to make a platform-dependent
2284 build directory is the following (tested on Linux), maybe with
2287 # Place yourself outside of the OpenSSL source tree. In
2288 # this example, the environment variable OPENSSL_SOURCE
2289 # is assumed to contain the absolute OpenSSL source directory.
2290 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
2291 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
2292 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
2293 mkdir -p `dirname $F`
2294 ln -s $OPENSSL_SOURCE/$F $F
2297 To be absolutely sure not to disturb the source tree, a "make clean"
2298 is a good thing. If it isn't successfull, don't worry about it,
2299 it probably means the source directory is very clean.
2302 *) Make sure any ENGINE control commands make local copies of string
2303 pointers passed to them whenever necessary. Otherwise it is possible
2304 the caller may have overwritten (or deallocated) the original string
2305 data when a later ENGINE operation tries to use the stored values.
2306 [Götz Babin-Ebell <babinebell@trustcenter.de>]
2308 *) Improve diagnostics in file reading and command-line digests.
2309 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
2311 *) Add AES modes CFB and OFB to the object database. Correct an
2312 error in AES-CFB decryption.
2315 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
2316 allows existing EVP_CIPHER_CTX structures to be reused after
2317 calling EVP_*Final(). This behaviour is used by encryption
2318 BIOs and some applications. This has the side effect that
2319 applications must explicitly clean up cipher contexts with
2320 EVP_CIPHER_CTX_cleanup() or they will leak memory.
2323 *) Check the values of dna and dnb in bn_mul_recursive before calling
2324 bn_mul_comba (a non zero value means the a or b arrays do not contain
2325 n2 elements) and fallback to bn_mul_normal if either is not zero.
2328 *) Fix escaping of non-ASCII characters when using the -subj option
2329 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
2332 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
2333 form for "surname", serialNumber has no short form.
2334 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
2335 therefore remove "mail" short name for "internet 7".
2336 The OID for unique identifiers in X509 certificates is
2337 x500UniqueIdentifier, not uniqueIdentifier.
2338 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
2341 *) Add an "init" command to the ENGINE config module and auto initialize
2342 ENGINEs. Without any "init" command the ENGINE will be initialized
2343 after all ctrl commands have been executed on it. If init=1 the
2344 ENGINE is initailized at that point (ctrls before that point are run
2345 on the uninitialized ENGINE and after on the initialized one). If
2346 init=0 then the ENGINE will not be iniatialized at all.
2349 *) Fix the 'app_verify_callback' interface so that the user-defined
2350 argument is actually passed to the callback: In the
2351 SSL_CTX_set_cert_verify_callback() prototype, the callback
2352 declaration has been changed from
2355 int (*cb)(X509_STORE_CTX *,void *);
2356 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
2357 i=s->ctx->app_verify_callback(&ctx)
2358 has been changed into
2359 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
2361 To update applications using SSL_CTX_set_cert_verify_callback(),
2362 a dummy argument can be added to their callback functions.
2363 [D. K. Smetters <smetters@parc.xerox.com>]
2365 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
2366 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
2368 *) Add and OPENSSL_LOAD_CONF define which will cause
2369 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
2370 This allows older applications to transparently support certain
2371 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
2372 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
2373 load the config file and OPENSSL_add_all_algorithms_conf() which will
2374 always load it have also been added.
2377 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
2378 Adjust NIDs and EVP layer.
2379 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2381 *) Config modules support in openssl utility.
2383 Most commands now load modules from the config file,
2384 though in a few (such as version) this isn't done
2385 because it couldn't be used for anything.
2387 In the case of ca and req the config file used is
2388 the same as the utility itself: that is the -config
2389 command line option can be used to specify an
2393 *) Move default behaviour from OPENSSL_config(). If appname is NULL
2394 use "openssl_conf" if filename is NULL use default openssl config file.
2397 *) Add an argument to OPENSSL_config() to allow the use of an alternative
2398 config section name. Add a new flag to tolerate a missing config file
2399 and move code to CONF_modules_load_file().
2402 *) Support for crypto accelerator cards from Accelerated Encryption
2403 Processing, www.aep.ie. (Use engine 'aep')
2404 The support was copied from 0.9.6c [engine] and adapted/corrected
2405 to work with the new engine framework.
2406 [AEP Inc. and Richard Levitte]
2408 *) Support for SureWare crypto accelerator cards from Baltimore
2409 Technologies. (Use engine 'sureware')
2410 The support was copied from 0.9.6c [engine] and adapted
2411 to work with the new engine framework.
2414 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
2415 make the newer ENGINE framework commands for the CHIL engine work.
2416 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
2418 *) Make it possible to produce shared libraries on ReliantUNIX.
2419 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
2421 *) Add the configuration target debug-linux-ppro.
2422 Make 'openssl rsa' use the general key loading routines
2423 implemented in apps.c, and make those routines able to
2424 handle the key format FORMAT_NETSCAPE and the variant
2426 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2428 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
2429 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2431 *) Add -keyform to rsautl, and document -engine.
2432 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
2434 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
2435 BIO_R_NO_SUCH_FILE error code rather than the generic
2436 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
2439 *) Add new functions
2441 ERR_peek_last_error_line
2442 ERR_peek_last_error_line_data.
2443 These are similar to
2446 ERR_peek_error_line_data,
2447 but report on the latest error recorded rather than the first one
2448 still in the error queue.
2449 [Ben Laurie, Bodo Moeller]
2451 *) default_algorithms option in ENGINE config module. This allows things
2453 default_algorithms = ALL
2454 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
2457 *) Prelminary ENGINE config module.
2460 *) New experimental application configuration code.
2463 *) Change the AES code to follow the same name structure as all other
2464 symmetric ciphers, and behave the same way. Move everything to
2465 the directory crypto/aes, thereby obsoleting crypto/rijndael.
2466 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2468 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
2469 [Ben Laurie and Theo de Raadt]
2471 *) Add option to output public keys in req command.
2472 [Massimiliano Pala madwolf@openca.org]
2474 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
2475 (up to about 10% better than before for P-192 and P-224).
2478 *) New functions/macros
2480 SSL_CTX_set_msg_callback(ctx, cb)
2481 SSL_CTX_set_msg_callback_arg(ctx, arg)
2482 SSL_set_msg_callback(ssl, cb)
2483 SSL_set_msg_callback_arg(ssl, arg)
2485 to request calling a callback function
2487 void cb(int write_p, int version, int content_type,
2488 const void *buf, size_t len, SSL *ssl, void *arg)
2490 whenever a protocol message has been completely received
2491 (write_p == 0) or sent (write_p == 1). Here 'version' is the
2492 protocol version according to which the SSL library interprets
2493 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
2494 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
2495 the content type as defined in the SSL 3.0/TLS 1.0 protocol
2496 specification (change_cipher_spec(20), alert(21), handshake(22)).
2497 'buf' and 'len' point to the actual message, 'ssl' to the
2498 SSL object, and 'arg' is the application-defined value set by
2499 SSL[_CTX]_set_msg_callback_arg().
2501 'openssl s_client' and 'openssl s_server' have new '-msg' options
2502 to enable a callback that displays all protocol messages.
2505 *) Change the shared library support so shared libraries are built as
2506 soon as the corresponding static library is finished, and thereby get
2507 openssl and the test programs linked against the shared library.
2508 This still only happens when the keyword "shard" has been given to
2509 the configuration scripts.
2511 NOTE: shared library support is still an experimental thing, and
2512 backward binary compatibility is still not guaranteed.
2513 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
2515 *) Add support for Subject Information Access extension.
2516 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2518 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
2519 additional bytes when new memory had to be allocated, not just
2520 when reusing an existing buffer.
2523 *) New command line and configuration option 'utf8' for the req command.
2524 This allows field values to be specified as UTF8 strings.
2527 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
2528 runs for the former and machine-readable output for the latter.
2531 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
2532 of the e-mail address in the DN (i.e., it will go into a certificate
2533 extension only). The new configuration file option 'email_in_dn = no'
2534 has the same effect.
2535 [Massimiliano Pala madwolf@openca.org]
2537 *) Change all functions with names starting with des_ to be starting
2538 with DES_ instead. Add wrappers that are compatible with libdes,
2539 but are named _ossl_old_des_*. Finally, add macros that map the
2540 des_* symbols to the corresponding _ossl_old_des_* if libdes
2541 compatibility is desired. If OpenSSL 0.9.6c compatibility is
2542 desired, the des_* symbols will be mapped to DES_*, with one
2545 Since we provide two compatibility mappings, the user needs to
2546 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
2547 compatibility is desired. The default (i.e., when that macro
2548 isn't defined) is OpenSSL 0.9.6c compatibility.
2550 There are also macros that enable and disable the support of old
2551 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
2552 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
2553 are defined, the default will apply: to support the old des routines.
2555 In either case, one must include openssl/des.h to get the correct
2556 definitions. Do not try to just include openssl/des_old.h, that
2559 NOTE: This is a major break of an old API into a new one. Software
2560 authors are encouraged to switch to the DES_ style functions. Some
2561 time in the future, des_old.h and the libdes compatibility functions
2562 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
2563 default), and then completely removed.
2566 *) Test for certificates which contain unsupported critical extensions.
2567 If such a certificate is found during a verify operation it is
2568 rejected by default: this behaviour can be overridden by either
2569 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
2570 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
2571 X509_supported_extension() has also been added which returns 1 if a
2572 particular extension is supported.
2575 *) Modify the behaviour of EVP cipher functions in similar way to digests
2576 to retain compatibility with existing code.
2579 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
2580 compatibility with existing code. In particular the 'ctx' parameter does
2581 not have to be to be initialized before the call to EVP_DigestInit() and
2582 it is tidied up after a call to EVP_DigestFinal(). New function
2583 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
2584 EVP_MD_CTX_copy() changed to not require the destination to be
2585 initialized valid and new function EVP_MD_CTX_copy_ex() added which
2586 requires the destination to be valid.
2588 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
2589 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
2592 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
2593 so that complete 'Handshake' protocol structures are kept in memory
2594 instead of overwriting 'msg_type' and 'length' with 'body' data.
2597 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
2598 [Massimo Santin via Richard Levitte]
2600 *) Major restructuring to the underlying ENGINE code. This includes
2601 reduction of linker bloat, separation of pure "ENGINE" manipulation
2602 (initialisation, etc) from functionality dealing with implementations
2603 of specific crypto iterfaces. This change also introduces integrated
2604 support for symmetric ciphers and digest implementations - so ENGINEs
2605 can now accelerate these by providing EVP_CIPHER and EVP_MD
2606 implementations of their own. This is detailed in crypto/engine/README
2607 as it couldn't be adequately described here. However, there are a few
2608 API changes worth noting - some RSA, DSA, DH, and RAND functions that
2609 were changed in the original introduction of ENGINE code have now
2610 reverted back - the hooking from this code to ENGINE is now a good
2611 deal more passive and at run-time, operations deal directly with
2612 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
2613 dereferencing through an ENGINE pointer any more. Also, the ENGINE
2614 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
2615 they were not being used by the framework as there is no concept of a
2616 BIGNUM_METHOD and they could not be generalised to the new
2617 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
2618 ENGINE_cpy() has been removed as it cannot be consistently defined in
2622 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
2625 *) Change mkdef.pl to sort symbols that get the same entry number,
2626 and make sure the automatically generated functions ERR_load_*
2627 become part of libeay.num as well.
2630 *) New function SSL_renegotiate_pending(). This returns true once
2631 renegotiation has been requested (either SSL_renegotiate() call
2632 or HelloRequest/ClientHello receveived from the peer) and becomes
2633 false once a handshake has been completed.
2634 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
2635 sends a HelloRequest, but does not ensure that a handshake takes
2636 place. SSL_renegotiate_pending() is useful for checking if the
2637 client has followed the request.)
2640 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
2641 By default, clients may request session resumption even during
2642 renegotiation (if session ID contexts permit); with this option,
2643 session resumption is possible only in the first handshake.
2645 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
2646 more bits available for options that should not be part of
2647 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
2650 *) Add some demos for certificate and certificate request creation.
2653 *) Make maximum certificate chain size accepted from the peer application
2654 settable (SSL*_get/set_max_cert_list()), as proposed by
2655 "Douglas E. Engert" <deengert@anl.gov>.
2658 *) Add support for shared libraries for Unixware-7
2659 (Boyd Lynn Gerber <gerberb@zenez.com>).
2662 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
2663 be done prior to destruction. Use this to unload error strings from
2664 ENGINEs that load their own error strings. NB: This adds two new API
2665 functions to "get" and "set" this destroy handler in an ENGINE.
2668 *) Alter all existing ENGINE implementations (except "openssl" and
2669 "openbsd") to dynamically instantiate their own error strings. This
2670 makes them more flexible to be built both as statically-linked ENGINEs
2671 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
2672 Also, add stub code to each that makes building them as self-contained
2673 shared-libraries easier (see README.ENGINE).
2676 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
2677 implementations into applications that are completely implemented in
2678 self-contained shared-libraries. The "dynamic" ENGINE exposes control
2679 commands that can be used to configure what shared-library to load and
2680 to control aspects of the way it is handled. Also, made an update to
2681 the README.ENGINE file that brings its information up-to-date and
2682 provides some information and instructions on the "dynamic" ENGINE
2683 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
2686 *) Make it possible to unload ranges of ERR strings with a new
2687 "ERR_unload_strings" function.
2690 *) Add a copy() function to EVP_MD.
2693 *) Make EVP_MD routines take a context pointer instead of just the
2694 md_data void pointer.
2697 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
2698 that the digest can only process a single chunk of data
2699 (typically because it is provided by a piece of
2700 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
2701 is only going to provide a single chunk of data, and hence the
2702 framework needn't accumulate the data for oneshot drivers.
2705 *) As with "ERR", make it possible to replace the underlying "ex_data"
2706 functions. This change also alters the storage and management of global
2707 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
2708 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
2709 index counters. The API functions that use this state have been changed
2710 to take a "class_index" rather than pointers to the class's local STACK
2711 and counter, and there is now an API function to dynamically create new
2712 classes. This centralisation allows us to (a) plug a lot of the
2713 thread-safety problems that existed, and (b) makes it possible to clean
2714 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
2715 such data would previously have always leaked in application code and
2716 workarounds were in place to make the memory debugging turn a blind eye
2717 to it. Application code that doesn't use this new function will still
2718 leak as before, but their memory debugging output will announce it now
2719 rather than letting it slide.
2721 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
2722 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
2723 has a return value to indicate success or failure.
2726 *) Make it possible to replace the underlying "ERR" functions such that the
2727 global state (2 LHASH tables and 2 locks) is only used by the "default"
2728 implementation. This change also adds two functions to "get" and "set"
2729 the implementation prior to it being automatically set the first time
2730 any other ERR function takes place. Ie. an application can call "get",
2731 pass the return value to a module it has just loaded, and that module
2732 can call its own "set" function using that value. This means the
2733 module's "ERR" operations will use (and modify) the error state in the
2734 application and not in its own statically linked copy of OpenSSL code.
2737 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
2738 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
2739 the operation, and provides a more encapsulated way for external code
2740 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
2741 to use these functions rather than manually incrementing the counts.
2743 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
2746 *) Add EVP test program.
2749 *) Add symmetric cipher support to ENGINE. Expect the API to change!
2752 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
2753 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
2754 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
2755 These allow a CRL to be built without having to access X509_CRL fields
2756 directly. Modify 'ca' application to use new functions.
2759 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
2760 bug workarounds. Rollback attack detection is a security feature.
2761 The problem will only arise on OpenSSL servers when TLSv1 is not
2762 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
2763 Software authors not wanting to support TLSv1 will have special reasons
2764 for their choice and can explicitly enable this option.
2765 [Bodo Moeller, Lutz Jaenicke]
2767 *) Rationalise EVP so it can be extended: don't include a union of
2768 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
2769 (similar to those existing for EVP_CIPHER_CTX).
2774 EVP_MD_CTX_init(&md); /* new function call */
2775 EVP_DigestInit(&md, EVP_sha1());
2776 EVP_DigestUpdate(&md, in, len);
2777 EVP_DigestFinal(&md, out, NULL);
2778 EVP_MD_CTX_cleanup(&md); /* new function call */
2782 *) Make DES key schedule conform to the usual scheme, as well as
2783 correcting its structure. This means that calls to DES functions
2784 now have to pass a pointer to a des_key_schedule instead of a
2785 plain des_key_schedule (which was actually always a pointer
2788 des_key_schedule ks;
2790 des_set_key_checked(..., &ks);
2791 des_ncbc_encrypt(..., &ks, ...);
2793 (Note that a later change renames 'des_...' into 'DES_...'.)
2796 *) Initial reduction of linker bloat: the use of some functions, such as
2797 PEM causes large amounts of unused functions to be linked in due to
2798 poor organisation. For example pem_all.c contains every PEM function
2799 which has a knock on effect of linking in large amounts of (unused)
2800 ASN1 code. Grouping together similar functions and splitting unrelated
2801 functions prevents this.
2804 *) Cleanup of EVP macros.
2807 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
2808 correct _ecb suffix.
2811 *) Add initial OCSP responder support to ocsp application. The
2812 revocation information is handled using the text based index
2813 use by the ca application. The responder can either handle
2814 requests generated internally, supplied in files (for example
2815 via a CGI script) or using an internal minimal server.
2818 *) Add configuration choices to get zlib compression for TLS.
2821 *) Changes to Kerberos SSL for RFC 2712 compliance:
2822 1. Implemented real KerberosWrapper, instead of just using
2823 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
2824 2. Implemented optional authenticator field of KerberosWrapper.
2826 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
2827 and authenticator structs; see crypto/krb5/.
2829 Generalized Kerberos calls to support multiple Kerberos libraries.
2830 [Vern Staats <staatsvr@asc.hpc.mil>,
2831 Jeffrey Altman <jaltman@columbia.edu>
2832 via Richard Levitte]
2834 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
2835 already does with RSA. testdsa.h now has 'priv_key/pub_key'
2836 values for each of the key sizes rather than having just
2837 parameters (and 'speed' generating keys each time).
2840 *) Speed up EVP routines.
2843 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
2844 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
2845 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
2846 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
2848 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
2849 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
2850 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
2853 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
2855 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
2858 *) Added the OS2-EMX target.
2859 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
2861 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
2862 to support NCONF routines in extension code. New function CONF_set_nconf()
2863 to allow functions which take an NCONF to also handle the old LHASH
2864 structure: this means that the old CONF compatible routines can be
2865 retained (in particular wrt extensions) without having to duplicate the
2866 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
2869 *) Enhance the general user interface with mechanisms for inner control
2870 and with possibilities to have yes/no kind of prompts.
2873 *) Change all calls to low level digest routines in the library and
2874 applications to use EVP. Add missing calls to HMAC_cleanup() and
2875 don't assume HMAC_CTX can be copied using memcpy().
2876 [Verdon Walker <VWalker@novell.com>, Steve Henson]
2878 *) Add the possibility to control engines through control names but with
2879 arbitrary arguments instead of just a string.
2880 Change the key loaders to take a UI_METHOD instead of a callback
2881 function pointer. NOTE: this breaks binary compatibility with earlier
2882 versions of OpenSSL [engine].
2883 Adapt the nCipher code for these new conditions and add a card insertion
2887 *) Enhance the general user interface with mechanisms to better support
2888 dialog box interfaces, application-defined prompts, the possibility
2889 to use defaults (for example default passwords from somewhere else)
2890 and interrupts/cancellations.
2893 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
2894 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
2897 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
2898 tidy up some unnecessarily weird code in 'sk_new()').
2899 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
2901 *) Change the key loading routines for ENGINEs to use the same kind
2902 callback (pem_password_cb) as all other routines that need this
2906 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
2907 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
2908 than this minimum value is recommended.
2911 *) New random seeder for OpenVMS, using the system process statistics
2912 that are easily reachable.
2915 *) Windows apparently can't transparently handle global
2916 variables defined in DLLs. Initialisations such as:
2918 const ASN1_ITEM *it = &ASN1_INTEGER_it;
2920 wont compile. This is used by the any applications that need to
2921 declare their own ASN1 modules. This was fixed by adding the option
2922 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
2923 needed for static libraries under Win32.
2926 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
2927 setting of purpose and trust fields. New X509_STORE trust and
2928 purpose functions and tidy up setting in other SSL functions.
2931 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
2932 structure. These are inherited by X509_STORE_CTX when it is
2933 initialised. This allows various defaults to be set in the
2934 X509_STORE structure (such as flags for CRL checking and custom
2935 purpose or trust settings) for functions which only use X509_STORE_CTX
2936 internally such as S/MIME.
2938 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
2939 trust settings if they are not set in X509_STORE. This allows X509_STORE
2940 purposes and trust (in S/MIME for example) to override any set by default.
2942 Add command line options for CRL checking to smime, s_client and s_server
2946 *) Initial CRL based revocation checking. If the CRL checking flag(s)
2947 are set then the CRL is looked up in the X509_STORE structure and
2948 its validity and signature checked, then if the certificate is found
2949 in the CRL the verify fails with a revoked error.
2951 Various new CRL related callbacks added to X509_STORE_CTX structure.
2953 Command line options added to 'verify' application to support this.
2955 This needs some additional work, such as being able to handle multiple
2956 CRLs with different times, extension based lookup (rather than just
2957 by subject name) and ultimately more complete V2 CRL extension
2961 *) Add a general user interface API (crypto/ui/). This is designed
2962 to replace things like des_read_password and friends (backward
2963 compatibility functions using this new API are provided).
2964 The purpose is to remove prompting functions from the DES code
2965 section as well as provide for prompting through dialog boxes in
2966 a window system and the like.
2969 *) Add "ex_data" support to ENGINE so implementations can add state at a
2970 per-structure level rather than having to store it globally.
2973 *) Make it possible for ENGINE structures to be copied when retrieved by
2974 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
2975 This causes the "original" ENGINE structure to act like a template,
2976 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
2977 operational state can be localised to each ENGINE structure, despite the
2978 fact they all share the same "methods". New ENGINE structures returned in
2979 this case have no functional references and the return value is the single
2980 structural reference. This matches the single structural reference returned
2981 by ENGINE_by_id() normally, when it is incremented on the pre-existing
2985 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
2986 needs to match any other type at all we need to manually clear the
2990 *) Changes to the "openssl engine" utility to include;
2991 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
2992 about an ENGINE's available control commands.
2993 - executing control commands from command line arguments using the
2994 '-pre' and '-post' switches. '-post' is only used if '-t' is
2995 specified and the ENGINE is successfully initialised. The syntax for
2996 the individual commands are colon-separated, for example;
2997 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
3000 *) New dynamic control command support for ENGINEs. ENGINEs can now
3001 declare their own commands (numbers), names (strings), descriptions,
3002 and input types for run-time discovery by calling applications. A
3003 subset of these commands are implicitly classed as "executable"
3004 depending on their input type, and only these can be invoked through
3005 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
3006 can be based on user input, config files, etc). The distinction is
3007 that "executable" commands cannot return anything other than a boolean
3008 result and can only support numeric or string input, whereas some
3009 discoverable commands may only be for direct use through
3010 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
3011 pointers, or other custom uses. The "executable" commands are to
3012 support parameterisations of ENGINE behaviour that can be
3013 unambiguously defined by ENGINEs and used consistently across any
3014 OpenSSL-based application. Commands have been added to all the
3015 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
3016 control over shared-library paths without source code alterations.
3019 *) Changed all ENGINE implementations to dynamically allocate their
3020 ENGINEs rather than declaring them statically. Apart from this being
3021 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
3022 this also allows the implementations to compile without using the
3023 internal engine_int.h header.
3026 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
3027 'const' value. Any code that should be able to modify a RAND_METHOD
3028 should already have non-const pointers to it (ie. they should only
3029 modify their own ones).
3032 *) Made a variety of little tweaks to the ENGINE code.
3033 - "atalla" and "ubsec" string definitions were moved from header files
3034 to C code. "nuron" string definitions were placed in variables
3035 rather than hard-coded - allowing parameterisation of these values
3036 later on via ctrl() commands.
3037 - Removed unused "#if 0"'d code.
3038 - Fixed engine list iteration code so it uses ENGINE_free() to release
3039 structural references.
3040 - Constified the RAND_METHOD element of ENGINE structures.
3041 - Constified various get/set functions as appropriate and added
3042 missing functions (including a catch-all ENGINE_cpy that duplicates
3043 all ENGINE values onto a new ENGINE except reference counts/state).
3044 - Removed NULL parameter checks in get/set functions. Setting a method
3045 or function to NULL is a way of cancelling out a previously set
3046 value. Passing a NULL ENGINE parameter is just plain stupid anyway
3047 and doesn't justify the extra error symbols and code.
3048 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
3049 flags from engine_int.h to engine.h.
3050 - Changed prototypes for ENGINE handler functions (init(), finish(),
3051 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
3054 *) Implement binary inversion algorithm for BN_mod_inverse in addition
3055 to the algorithm using long division. The binary algorithm can be
3056 used only if the modulus is odd. On 32-bit systems, it is faster
3057 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
3058 roughly 5-15% for 256-bit moduli), so we use it only for moduli
3059 up to 450 bits. In 64-bit environments, the binary algorithm
3060 appears to be advantageous for much longer moduli; here we use it
3061 for moduli up to 2048 bits.
3064 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
3065 could not support the combine flag in choice fields.
3068 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
3069 extensions from a certificate request to the certificate.
3072 *) Allow multiple 'certopt' and 'nameopt' options to be separated
3073 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
3074 file: this allows the display of the certificate about to be
3075 signed to be customised, to allow certain fields to be included
3076 or excluded and extension details. The old system didn't display
3077 multicharacter strings properly, omitted fields not in the policy
3078 and couldn't display additional details such as extensions.
3081 *) Function EC_POINTs_mul for multiple scalar multiplication
3082 of an arbitrary number of elliptic curve points
3083 \sum scalars[i]*points[i],
3084 optionally including the generator defined for the EC_GROUP:
3085 scalar*generator + \sum scalars[i]*points[i].
3087 EC_POINT_mul is a simple wrapper function for the typical case
3088 that the point list has just one item (besides the optional
3092 *) First EC_METHODs for curves over GF(p):
3094 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
3095 operations and provides various method functions that can also
3096 operate with faster implementations of modular arithmetic.
3098 EC_GFp_mont_method() reuses most functions that are part of
3099 EC_GFp_simple_method, but uses Montgomery arithmetic.
3101 [Bodo Moeller; point addition and point doubling
3102 implementation directly derived from source code provided by
3103 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
3105 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
3106 crypto/ec/ec_lib.c):
3108 Curves are EC_GROUP objects (with an optional group generator)
3109 based on EC_METHODs that are built into the library.
3111 Points are EC_POINT objects based on EC_GROUP objects.
3113 Most of the framework would be able to handle curves over arbitrary
3114 finite fields, but as there are no obvious types for fields other
3115 than GF(p), some functions are limited to that for now.
3118 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
3119 that the file contains a complete HTTP response.
3122 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
3123 change the def and num file printf format specifier from "%-40sXXX"
3124 to "%-39s XXX". The latter will always guarantee a space after the
3125 field while the former will cause them to run together if the field
3126 is 40 of more characters long.
3129 *) Constify the cipher and digest 'method' functions and structures
3130 and modify related functions to take constant EVP_MD and EVP_CIPHER
3134 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
3135 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
3138 *) Modify EVP_Digest*() routines so they now return values. Although the
3139 internal software routines can never fail additional hardware versions
3143 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
3145 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
3146 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
3149 ERR_R_NESTED_ASN1_ERROR
3151 ERR_R_MISSING_ASN1_EOS
3152 were 4 .. 9, conflicting with
3153 ERR_LIB_RSA (= ERR_R_RSA_LIB)
3155 ERR_LIB_PEM (= ERR_R_PEM_LIB).
3156 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
3158 Add new error code 'ERR_R_INTERNAL_ERROR'.
3161 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
3165 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
3166 sets the subject name for a new request or supersedes the
3167 subject name in a given request. Formats that can be parsed are
3168 'CN=Some Name, OU=myOU, C=IT'
3170 'CN=Some Name/OU=myOU/C=IT'.
3172 Add options '-batch' and '-verbose' to 'openssl req'.
3173 [Massimiliano Pala <madwolf@hackmasters.net>]
3175 *) Introduce the possibility to access global variables through
3176 functions on platform were that's the best way to handle exporting
3177 global variables in shared libraries. To enable this functionality,
3178 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
3179 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
3180 is normally done by Configure or something similar).
3182 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
3183 in the source file (foo.c) like this:
3185 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
3186 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
3188 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
3189 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
3191 OPENSSL_DECLARE_GLOBAL(int,foo);
3192 #define foo OPENSSL_GLOBAL_REF(foo)
3193 OPENSSL_DECLARE_GLOBAL(double,bar);
3194 #define bar OPENSSL_GLOBAL_REF(bar)
3196 The #defines are very important, and therefore so is including the
3197 header file everywhere where the defined globals are used.
3199 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
3200 of ASN.1 items, but that structure is a bit different.
3202 The largest change is in util/mkdef.pl which has been enhanced with
3203 better and easier to understand logic to choose which symbols should
3204 go into the Windows .def files as well as a number of fixes and code
3205 cleanup (among others, algorithm keywords are now sorted
3206 lexicographically to avoid constant rewrites).
3209 *) In BN_div() keep a copy of the sign of 'num' before writing the
3210 result to 'rm' because if rm==num the value will be overwritten
3211 and produce the wrong result if 'num' is negative: this caused
3212 problems with BN_mod() and BN_nnmod().
3215 *) Function OCSP_request_verify(). This checks the signature on an
3216 OCSP request and verifies the signer certificate. The signer
3217 certificate is just checked for a generic purpose and OCSP request
3221 *) Add OCSP_check_validity() function to check the validity of OCSP
3222 responses. OCSP responses are prepared in real time and may only
3223 be a few seconds old. Simply checking that the current time lies
3224 between thisUpdate and nextUpdate max reject otherwise valid responses
3225 caused by either OCSP responder or client clock inaccuracy. Instead
3226 we allow thisUpdate and nextUpdate to fall within a certain period of
3227 the current time. The age of the response can also optionally be
3228 checked. Two new options -validity_period and -status_age added to
3232 *) If signature or public key algorithm is unrecognized print out its
3233 OID rather that just UNKNOWN.
3236 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
3237 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
3238 ID to be generated from the issuer certificate alone which can then be
3239 passed to OCSP_id_issuer_cmp().
3242 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
3243 ASN1 modules to export functions returning ASN1_ITEM pointers
3244 instead of the ASN1_ITEM structures themselves. This adds several
3245 new macros which allow the underlying ASN1 function/structure to
3246 be accessed transparently. As a result code should not use ASN1_ITEM
3247 references directly (such as &X509_it) but instead use the relevant
3248 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
3249 use of the new ASN1 code on platforms where exporting structures
3250 is problematical (for example in shared libraries) but exporting
3251 functions returning pointers to structures is not.
3254 *) Add support for overriding the generation of SSL/TLS session IDs.
3255 These callbacks can be registered either in an SSL_CTX or per SSL.
3256 The purpose of this is to allow applications to control, if they wish,
3257 the arbitrary values chosen for use as session IDs, particularly as it
3258 can be useful for session caching in multiple-server environments. A
3259 command-line switch for testing this (and any client code that wishes
3260 to use such a feature) has been added to "s_server".
3261 [Geoff Thorpe, Lutz Jaenicke]
3263 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
3264 of the form '#if defined(...) || defined(...) || ...' and
3265 '#if !defined(...) && !defined(...) && ...'. This also avoids
3266 the growing number of special cases it was previously handling.
3269 *) Make all configuration macros available for application by making
3270 sure they are available in opensslconf.h, by giving them names starting
3271 with "OPENSSL_" to avoid conflicts with other packages and by making
3272 sure e_os2.h will cover all platform-specific cases together with
3274 Additionally, it is now possible to define configuration/platform-
3275 specific names (called "system identities"). In the C code, these
3276 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
3277 macro with the name beginning with "OPENSSL_SYS_", which is determined
3278 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
3282 *) New option -set_serial to 'req' and 'x509' this allows the serial
3283 number to use to be specified on the command line. Previously self
3284 signed certificates were hard coded with serial number 0 and the
3285 CA options of 'x509' had to use a serial number in a file which was
3289 *) New options to 'ca' utility to support V2 CRL entry extensions.
3290 Currently CRL reason, invalidity date and hold instruction are
3291 supported. Add new CRL extensions to V3 code and some new objects.
3294 *) New function EVP_CIPHER_CTX_set_padding() this is used to
3295 disable standard block padding (aka PKCS#5 padding) in the EVP
3296 API, which was previously mandatory. This means that the data is
3297 not padded in any way and so the total length much be a multiple
3298 of the block size, otherwise an error occurs.
3301 *) Initial (incomplete) OCSP SSL support.
3304 *) New function OCSP_parse_url(). This splits up a URL into its host,
3305 port and path components: primarily to parse OCSP URLs. New -url
3306 option to ocsp utility.
3309 *) New nonce behavior. The return value of OCSP_check_nonce() now
3310 reflects the various checks performed. Applications can decide
3311 whether to tolerate certain situations such as an absent nonce
3312 in a response when one was present in a request: the ocsp application
3313 just prints out a warning. New function OCSP_add1_basic_nonce()
3314 this is to allow responders to include a nonce in a response even if
3315 the request is nonce-less.
3318 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
3319 skipped when using openssl x509 multiple times on a single input file,
3320 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
3323 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
3324 set string type: to handle setting ASN1_TIME structures. Fix ca
3325 utility to correctly initialize revocation date of CRLs.
3328 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
3329 the clients preferred ciphersuites and rather use its own preferences.
3330 Should help to work around M$ SGC (Server Gated Cryptography) bug in
3331 Internet Explorer by ensuring unchanged hash method during stepup.
3332 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
3335 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
3336 to aes and add a new 'exist' option to print out symbols that don't
3340 *) Additional options to ocsp utility to allow flags to be set and
3341 additional certificates supplied.
3344 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
3345 OCSP client a number of certificate to only verify the response
3349 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
3350 handle the new API. Currently only ECB, CBC modes supported. Add new
3353 Add TLS AES ciphersuites as described in RFC3268, "Advanced
3354 Encryption Standard (AES) Ciphersuites for Transport Layer
3355 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
3356 not enabled by default and were not part of the "ALL" ciphersuite
3357 alias because they were not yet official; they could be
3358 explicitly requested by specifying the "AESdraft" ciphersuite
3359 group alias. In the final release of OpenSSL 0.9.7, the group
3360 alias is called "AES" and is part of "ALL".)
3361 [Ben Laurie, Steve Henson, Bodo Moeller]
3363 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
3364 request to response.
3367 *) Functions for OCSP responders. OCSP_request_onereq_count(),
3368 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
3369 extract information from a certificate request. OCSP_response_create()
3370 creates a response and optionally adds a basic response structure.
3371 OCSP_basic_add1_status() adds a complete single response to a basic
3372 response and returns the OCSP_SINGLERESP structure just added (to allow
3373 extensions to be included for example). OCSP_basic_add1_cert() adds a
3374 certificate to a basic response and OCSP_basic_sign() signs a basic
3375 response with various flags. New helper functions ASN1_TIME_check()
3376 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
3377 (converts ASN1_TIME to GeneralizedTime).
3380 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
3381 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
3382 structure from a certificate. X509_pubkey_digest() digests the public_key
3383 contents: this is used in various key identifiers.
3386 *) Make sk_sort() tolerate a NULL argument.
3387 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
3389 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
3390 passed by the function are trusted implicitly. If any of them signed the
3391 response then it is assumed to be valid and is not verified.
3394 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
3395 to data. This was previously part of the PKCS7 ASN1 code. This
3396 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
3397 [Steve Henson, reported by Kenneth R. Robinette
3398 <support@securenetterm.com>]
3400 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
3401 routines: without these tracing memory leaks is very painful.
3402 Fix leaks in PKCS12 and PKCS7 routines.
3405 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
3406 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
3407 effectively meant GeneralizedTime would never be used. Now it
3408 is initialised to -1 but X509_time_adj() now has to check the value
3409 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
3410 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
3411 [Steve Henson, reported by Kenneth R. Robinette
3412 <support@securenetterm.com>]
3414 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
3415 result in a zero length in the ASN1_INTEGER structure which was
3416 not consistent with the structure when d2i_ASN1_INTEGER() was used
3417 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
3418 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
3419 where it did not print out a minus for negative ASN1_INTEGER.
3422 *) Add summary printout to ocsp utility. The various functions which
3423 convert status values to strings have been renamed to:
3424 OCSP_response_status_str(), OCSP_cert_status_str() and
3425 OCSP_crl_reason_str() and are no longer static. New options
3426 to verify nonce values and to disable verification. OCSP response
3427 printout format cleaned up.
3430 *) Add additional OCSP certificate checks. These are those specified
3431 in RFC2560. This consists of two separate checks: the CA of the
3432 certificate being checked must either be the OCSP signer certificate
3433 or the issuer of the OCSP signer certificate. In the latter case the
3434 OCSP signer certificate must contain the OCSP signing extended key
3435 usage. This check is performed by attempting to match the OCSP
3436 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
3437 in the OCSP_CERTID structures of the response.
3440 *) Initial OCSP certificate verification added to OCSP_basic_verify()
3441 and related routines. This uses the standard OpenSSL certificate
3442 verify routines to perform initial checks (just CA validity) and
3443 to obtain the certificate chain. Then additional checks will be
3444 performed on the chain. Currently the root CA is checked to see
3445 if it is explicitly trusted for OCSP signing. This is used to set
3446 a root CA as a global signing root: that is any certificate that
3447 chains to that CA is an acceptable OCSP signing certificate.
3450 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
3451 extensions from a separate configuration file.
3452 As when reading extensions from the main configuration file,
3453 the '-extensions ...' option may be used for specifying the
3455 [Massimiliano Pala <madwolf@comune.modena.it>]
3457 *) New OCSP utility. Allows OCSP requests to be generated or
3458 read. The request can be sent to a responder and the output
3459 parsed, outputed or printed in text form. Not complete yet:
3460 still needs to check the OCSP response validity.
3463 *) New subcommands for 'openssl ca':
3464 'openssl ca -status <serial>' prints the status of the cert with
3465 the given serial number (according to the index file).
3466 'openssl ca -updatedb' updates the expiry status of certificates
3468 [Massimiliano Pala <madwolf@comune.modena.it>]
3470 *) New '-newreq-nodes' command option to CA.pl. This is like
3471 '-newreq', but calls 'openssl req' with the '-nodes' option
3472 so that the resulting key is not encrypted.
3473 [Damien Miller <djm@mindrot.org>]
3475 *) New configuration for the GNU Hurd.
3476 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
3478 *) Initial code to implement OCSP basic response verify. This
3479 is currently incomplete. Currently just finds the signer's
3480 certificate and verifies the signature on the response.
3483 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
3484 value of OPENSSLDIR. This is available via the new '-d' option
3485 to 'openssl version', and is also included in 'openssl version -a'.
3488 *) Allowing defining memory allocation callbacks that will be given
3489 file name and line number information in additional arguments
3490 (a const char* and an int). The basic functionality remains, as
3491 well as the original possibility to just replace malloc(),
3492 realloc() and free() by functions that do not know about these
3493 additional arguments. To register and find out the current
3494 settings for extended allocation functions, the following
3495 functions are provided:
3497 CRYPTO_set_mem_ex_functions
3498 CRYPTO_set_locked_mem_ex_functions
3499 CRYPTO_get_mem_ex_functions
3500 CRYPTO_get_locked_mem_ex_functions
3502 These work the same way as CRYPTO_set_mem_functions and friends.
3503 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
3504 extended allocation function is enabled.
3505 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
3506 a conventional allocation function is enabled.
3507 [Richard Levitte, Bodo Moeller]
3509 *) Finish off removing the remaining LHASH function pointer casts.
3510 There should no longer be any prototype-casting required when using
3511 the LHASH abstraction, and any casts that remain are "bugs". See
3512 the callback types and macros at the head of lhash.h for details
3513 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
3516 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
3517 If /dev/[u]random devices are not available or do not return enough
3518 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
3520 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
3521 /etc/entropy will be queried once each in this sequence, quering stops
3522 when enough entropy was collected without querying more sockets.
3525 *) Change the Unix RAND_poll() variant to be able to poll several
3526 random devices, as specified by DEVRANDOM, until a sufficient amount
3527 of data has been collected. We spend at most 10 ms on each file
3528 (select timeout) and read in non-blocking mode. DEVRANDOM now
3529 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
3530 (previously it was just the string "/dev/urandom"), so on typical
3531 platforms the 10 ms delay will never occur.
3532 Also separate out the Unix variant to its own file, rand_unix.c.
3533 For VMS, there's a currently-empty rand_vms.c.
3536 *) Move OCSP client related routines to ocsp_cl.c. These
3537 provide utility functions which an application needing
3538 to issue a request to an OCSP responder and analyse the
3539 response will typically need: as opposed to those which an
3540 OCSP responder itself would need which will be added later.
3542 OCSP_request_sign() signs an OCSP request with an API similar
3543 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
3544 response. OCSP_response_get1_basic() extracts basic response
3545 from response. OCSP_resp_find_status(): finds and extracts status
3546 information from an OCSP_CERTID structure (which will be created
3547 when the request structure is built). These are built from lower
3548 level functions which work on OCSP_SINGLERESP structures but
3549 wont normally be used unless the application wishes to examine
3550 extensions in the OCSP response for example.
3552 Replace nonce routines with a pair of functions.
3553 OCSP_request_add1_nonce() adds a nonce value and optionally
3554 generates a random value. OCSP_check_nonce() checks the
3555 validity of the nonce in an OCSP response.
3558 *) Change function OCSP_request_add() to OCSP_request_add0_id().
3559 This doesn't copy the supplied OCSP_CERTID and avoids the
3560 need to free up the newly created id. Change return type
3561 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
3562 This can then be used to add extensions to the request.
3563 Deleted OCSP_request_new(), since most of its functionality
3564 is now in OCSP_REQUEST_new() (and the case insensitive name
3565 clash) apart from the ability to set the request name which
3566 will be added elsewhere.
3569 *) Update OCSP API. Remove obsolete extensions argument from
3570 various functions. Extensions are now handled using the new
3571 OCSP extension code. New simple OCSP HTTP function which
3572 can be used to send requests and parse the response.
3575 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
3576 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
3577 uses the special reorder version of SET OF to sort the attributes
3578 and reorder them to match the encoded order. This resolves a long
3579 standing problem: a verify on a PKCS7 structure just after signing
3580 it used to fail because the attribute order did not match the
3581 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
3582 it uses the received order. This is necessary to tolerate some broken
3583 software that does not order SET OF. This is handled by encoding
3584 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
3585 to produce the required SET OF.
3588 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
3589 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
3590 files to get correct declarations of the ASN.1 item variables.
3593 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
3594 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
3595 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
3596 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
3597 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
3598 ASN1_ITEM and no wrapper functions.
3601 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
3602 replace the old function pointer based I/O routines. Change most of
3603 the *_d2i_bio() and *_d2i_fp() functions to use these.
3606 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
3607 lines, recognice more "algorithms" that can be deselected, and make
3608 it complain about algorithm deselection that isn't recognised.
3611 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
3612 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
3613 to use new functions. Add NO_ASN1_OLD which can be set to remove
3614 some old style ASN1 functions: this can be used to determine if old
3615 code will still work when these eventually go away.
3618 *) New extension functions for OCSP structures, these follow the
3619 same conventions as certificates and CRLs.
3622 *) New function X509V3_add1_i2d(). This automatically encodes and
3623 adds an extension. Its behaviour can be customised with various
3624 flags to append, replace or delete. Various wrappers added for
3625 certifcates and CRLs.
3628 *) Fix to avoid calling the underlying ASN1 print routine when
3629 an extension cannot be parsed. Correct a typo in the
3630 OCSP_SERVICELOC extension. Tidy up print OCSP format.
3633 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
3634 entries for variables.
3637 *) Add functionality to apps/openssl.c for detecting locking
3638 problems: As the program is single-threaded, all we have
3639 to do is register a locking callback using an array for
3640 storing which locks are currently held by the program.
3643 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
3644 SSL_get_ex_data_X509_STORE_idx(), which is used in
3645 ssl_verify_cert_chain() and thus can be called at any time
3646 during TLS/SSL handshakes so that thread-safety is essential.
3647 Unfortunately, the ex_data design is not at all suited
3648 for multi-threaded use, so it probably should be abolished.
3651 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
3652 [Broadcom, tweaked and integrated by Geoff Thorpe]
3654 *) Move common extension printing code to new function
3655 X509V3_print_extensions(). Reorganise OCSP print routines and
3656 implement some needed OCSP ASN1 functions. Add OCSP extensions.
3659 *) New function X509_signature_print() to remove duplication in some
3663 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
3664 set (this was treated exactly the same as SET OF previously). This
3665 is used to reorder the STACK representing the structure to match the
3666 encoding. This will be used to get round a problem where a PKCS7
3667 structure which was signed could not be verified because the STACK
3668 order did not reflect the encoded order.
3671 *) Reimplement the OCSP ASN1 module using the new code.
3674 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
3675 for its ASN1 operations. The old style function pointers still exist
3676 for now but they will eventually go away.
3679 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
3680 completely replaces the old ASN1 functionality with a table driven
3681 encoder and decoder which interprets an ASN1_ITEM structure describing
3682 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
3683 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
3684 has also been converted to the new form.
3687 *) Change BN_mod_exp_recp so that negative moduli are tolerated
3688 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
3689 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
3690 for negative moduli.
3693 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
3694 of not touching the result's sign bit.
3697 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
3701 *) Changed the LHASH code to use prototypes for callbacks, and created
3702 macros to declare and implement thin (optionally static) functions
3703 that provide type-safety and avoid function pointer casting for the
3704 type-specific callbacks.
3707 *) Added Kerberos Cipher Suites to be used with TLS, as written in
3709 [Veers Staats <staatsvr@asc.hpc.mil>,
3710 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
3712 *) Reformat the FAQ so the different questions and answers can be divided
3713 in sections depending on the subject.
3716 *) Have the zlib compression code load ZLIB.DLL dynamically under
3720 *) New function BN_mod_sqrt for computing square roots modulo a prime
3721 (using the probabilistic Tonelli-Shanks algorithm unless
3722 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
3723 be handled deterministically).
3724 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3726 *) Make BN_mod_inverse faster by explicitly handling small quotients
3727 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
3728 512 bits], about 30% for larger ones [1024 or 2048 bits].)
3731 *) New function BN_kronecker.
3734 *) Fix BN_gcd so that it works on negative inputs; the result is
3735 positive unless both parameters are zero.
3736 Previously something reasonably close to an infinite loop was
3737 possible because numbers could be growing instead of shrinking
3738 in the implementation of Euclid's algorithm.
3741 *) Fix BN_is_word() and BN_is_one() macros to take into account the
3742 sign of the number in question.
3744 Fix BN_is_word(a,w) to work correctly for w == 0.
3746 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
3747 because its test if the absolute value of 'a' equals 'w'.
3748 Note that BN_abs_is_word does *not* handle w == 0 reliably;
3749 it exists mostly for use in the implementations of BN_is_zero(),
3750 BN_is_one(), and BN_is_word().
3753 *) New function BN_swap.
3756 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
3757 the exponentiation functions are more likely to produce reasonable
3758 results on negative inputs.
3761 *) Change BN_mod_mul so that the result is always non-negative.
3762 Previously, it could be negative if one of the factors was negative;
3763 I don't think anyone really wanted that behaviour.
3766 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
3767 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
3768 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
3769 and add new functions:
3778 BN_mod_lshift1_quick
3782 These functions always generate non-negative results.
3784 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
3785 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
3787 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
3788 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
3789 be reduced modulo m.
3790 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3793 The following entry accidentily appeared in the CHANGES file
3794 distributed with OpenSSL 0.9.7. The modifications described in
3795 it do *not* apply to OpenSSL 0.9.7.
3797 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3798 was actually never needed) and in BN_mul(). The removal in BN_mul()
3799 required a small change in bn_mul_part_recursive() and the addition
3800 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3801 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3802 bn_sub_words() and bn_add_words() except they take arrays with
3807 *) In 'openssl passwd', verify passwords read from the terminal
3808 unless the '-salt' option is used (which usually means that
3809 verification would just waste user's time since the resulting
3810 hash is going to be compared with some given password hash)
3811 or the new '-noverify' option is used.
3813 This is an incompatible change, but it does not affect
3814 non-interactive use of 'openssl passwd' (passwords on the command
3815 line, '-stdin' option, '-in ...' option) and thus should not
3819 *) Remove all references to RSAref, since there's no more need for it.
3822 *) Make DSO load along a path given through an environment variable
3823 (SHLIB_PATH) with shl_load().
3826 *) Constify the ENGINE code as a result of BIGNUM constification.
3827 Also constify the RSA code and most things related to it. In a
3828 few places, most notable in the depth of the ASN.1 code, ugly
3829 casts back to non-const were required (to be solved at a later
3833 *) Make it so the openssl application has all engines loaded by default.
3836 *) Constify the BIGNUM routines a little more.
3839 *) Add the following functions:
3841 ENGINE_load_cswift()
3843 ENGINE_load_atalla()
3845 ENGINE_load_builtin_engines()
3847 That way, an application can itself choose if external engines that
3848 are built-in in OpenSSL shall ever be used or not. The benefit is
3849 that applications won't have to be linked with libdl or other dso
3850 libraries unless it's really needed.
3852 Changed 'openssl engine' to load all engines on demand.
3853 Changed the engine header files to avoid the duplication of some
3854 declarations (they differed!).
3857 *) 'openssl engine' can now list capabilities.
3860 *) Better error reporting in 'openssl engine'.
3863 *) Never call load_dh_param(NULL) in s_server.
3866 *) Add engine application. It can currently list engines by name and
3867 identity, and test if they are actually available.
3870 *) Improve RPM specification file by forcing symbolic linking and making
3871 sure the installed documentation is also owned by root.root.
3872 [Damien Miller <djm@mindrot.org>]
3874 *) Give the OpenSSL applications more possibilities to make use of
3875 keys (public as well as private) handled by engines.
3878 *) Add OCSP code that comes from CertCo.
3881 *) Add VMS support for the Rijndael code.
3884 *) Added untested support for Nuron crypto accelerator.
3887 *) Add support for external cryptographic devices. This code was
3888 previously distributed separately as the "engine" branch.
3889 [Geoff Thorpe, Richard Levitte]
3891 *) Rework the filename-translation in the DSO code. It is now possible to
3892 have far greater control over how a "name" is turned into a filename
3893 depending on the operating environment and any oddities about the
3894 different shared library filenames on each system.
3897 *) Support threads on FreeBSD-elf in Configure.
3900 *) Fix for SHA1 assembly problem with MASM: it produces
3901 warnings about corrupt line number information when assembling
3902 with debugging information. This is caused by the overlapping
3904 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
3907 NCONF_get_number() has no error checking at all. As a replacement,
3908 NCONF_get_number_e() is defined (_e for "error checking") and is
3909 promoted strongly. The old NCONF_get_number is kept around for
3910 binary backward compatibility.
3911 Make it possible for methods to load from something other than a BIO,
3912 by providing a function pointer that is given a name instead of a BIO.
3913 For example, this could be used to load configuration data from an
3917 *) Fix for non blocking accept BIOs. Added new I/O special reason
3918 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
3919 with non blocking I/O was not possible because no retry code was
3920 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
3924 *) Added the beginnings of Rijndael support.
3927 *) Fix for bug in DirectoryString mask setting. Add support for
3928 X509_NAME_print_ex() in 'req' and X509_print_ex() function
3929 to allow certificate printing to more controllable, additional
3930 'certopt' option to 'x509' to allow new printing options to be
3934 *) Clean old EAY MD5 hack from e_os.h.
3937 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
3939 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3940 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3941 [Joe Orton, Steve Henson]
3943 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
3945 *) Fix additional bug revealed by the NISCC test suite:
3947 Stop bug triggering large recursion when presented with
3948 certain ASN.1 tags (CVE-2003-0851)
3951 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
3953 *) Fix various bugs revealed by running the NISCC test suite:
3955 Stop out of bounds reads in the ASN1 code when presented with
3956 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3958 If verify callback ignores invalid public key errors don't try to check
3959 certificate signature with the NULL public key.
3963 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3964 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3968 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3969 extra data after the compression methods not only for TLS 1.0
3970 but also for SSL 3.0 (as required by the specification).
3971 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3973 *) Change X509_certificate_type() to mark the key as exported/exportable
3974 when it's 512 *bits* long, not 512 bytes.
3977 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
3979 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3980 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3981 a protocol version number mismatch like a decryption error
3982 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3985 *) Turn on RSA blinding by default in the default implementation
3986 to avoid a timing attack. Applications that don't want it can call
3987 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3988 They would be ill-advised to do so in most cases.
3989 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3991 *) Change RSA blinding code so that it works when the PRNG is not
3992 seeded (in this case, the secret RSA exponent is abused as
3993 an unpredictable seed -- if it is not unpredictable, there
3994 is no point in blinding anyway). Make RSA blinding thread-safe
3995 by remembering the creator's thread ID in rsa->blinding and
3996 having all other threads use local one-time blinding factors
3997 (this requires more computation than sharing rsa->blinding, but
3998 avoids excessive locking; and if an RSA object is not shared
3999 between threads, blinding will still be very fast).
4002 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
4004 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
4005 via timing by performing a MAC computation even if incorrrect
4006 block cipher padding has been found. This is a countermeasure
4007 against active attacks where the attacker has to distinguish
4008 between bad padding and a MAC verification error. (CVE-2003-0078)
4010 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
4011 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
4012 Martin Vuagnoux (EPFL, Ilion)]
4014 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
4016 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
4017 memory from it's contents. This is done with a counter that will
4018 place alternating values in each byte. This can be used to solve
4019 two issues: 1) the removal of calls to memset() by highly optimizing
4020 compilers, and 2) cleansing with other values than 0, since those can
4021 be read through on certain media, for example a swap space on disk.
4024 *) Bugfix: client side session caching did not work with external caching,
4025 because the session->cipher setting was not restored when reloading
4026 from the external cache. This problem was masked, when
4027 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
4028 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
4031 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
4032 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
4033 [Zeev Lieber <zeev-l@yahoo.com>]
4035 *) Undo an undocumented change introduced in 0.9.6e which caused
4036 repeated calls to OpenSSL_add_all_ciphers() and
4037 OpenSSL_add_all_digests() to be ignored, even after calling
4041 *) Change the default configuration reader to deal with last line not
4042 being properly terminated.
4045 *) Change X509_NAME_cmp() so it applies the special rules on handling
4046 DN values that are of type PrintableString, as well as RDNs of type
4047 emailAddress where the value has the type ia5String.
4048 [stefank@valicert.com via Richard Levitte]
4050 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
4051 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
4052 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
4053 the bitwise-OR of the two for use by the majority of applications
4054 wanting this behaviour, and update the docs. The documented
4055 behaviour and actual behaviour were inconsistent and had been
4056 changing anyway, so this is more a bug-fix than a behavioural
4058 [Geoff Thorpe, diagnosed by Nadav Har'El]
4060 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
4061 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
4064 *) Fix initialization code race conditions in
4065 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
4066 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
4067 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
4068 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
4069 ssl2_get_cipher_by_char(),
4070 ssl3_get_cipher_by_char().
4071 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
4073 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
4074 the cached sessions are flushed, as the remove_cb() might use ex_data
4075 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
4076 (see [openssl.org #212]).
4077 [Geoff Thorpe, Lutz Jaenicke]
4079 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
4080 length, instead of the encoding length to d2i_ASN1_OBJECT.
4083 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
4085 *) [In 0.9.6g-engine release:]
4086 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
4087 [Lynn Gazis <lgazis@rainbow.com>]
4089 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
4091 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
4092 and get fix the header length calculation.
4093 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
4094 Alon Kantor <alonk@checkpoint.com> (and others),
4097 *) Use proper error handling instead of 'assertions' in buffer
4098 overflow checks added in 0.9.6e. This prevents DoS (the
4099 assertions could call abort()).
4100 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
4102 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
4104 *) Add various sanity checks to asn1_get_length() to reject
4105 the ASN1 length bytes if they exceed sizeof(long), will appear
4106 negative or the content length exceeds the length of the
4108 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4110 *) Fix cipher selection routines: ciphers without encryption had no flags
4111 for the cipher strength set and where therefore not handled correctly
4112 by the selection routines (PR #130).
4115 *) Fix EVP_dsa_sha macro.
4119 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
4120 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
4121 that was added in OpenSSL 0.9.6d.
4123 As the countermeasure turned out to be incompatible with some
4124 broken SSL implementations, the new option is part of SSL_OP_ALL.
4125 SSL_OP_ALL is usually employed when compatibility with weird SSL
4126 implementations is desired (e.g. '-bugs' option to 's_client' and
4127 's_server'), so the new option is automatically set in many
4131 *) Changes in security patch:
4133 Changes marked "(CHATS)" were sponsored by the Defense Advanced
4134 Research Projects Agency (DARPA) and Air Force Research Laboratory,
4135 Air Force Materiel Command, USAF, under agreement number
4138 *) Add various sanity checks to asn1_get_length() to reject
4139 the ASN1 length bytes if they exceed sizeof(long), will appear
4140 negative or the content length exceeds the length of the
4141 supplied buffer. (CVE-2002-0659)
4142 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4144 *) Assertions for various potential buffer overflows, not known to
4146 [Ben Laurie (CHATS)]
4148 *) Various temporary buffers to hold ASCII versions of integers were
4149 too small for 64 bit platforms. (CVE-2002-0655)
4150 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
4152 *) Remote buffer overflow in SSL3 protocol - an attacker could
4153 supply an oversized session ID to a client. (CVE-2002-0656)
4154 [Ben Laurie (CHATS)]
4156 *) Remote buffer overflow in SSL2 protocol - an attacker could
4157 supply an oversized client master key. (CVE-2002-0656)
4158 [Ben Laurie (CHATS)]
4160 Changes between 0.9.6c and 0.9.6d [9 May 2002]
4162 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
4163 encoded as NULL) with id-dsa-with-sha1.
4164 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
4166 *) Check various X509_...() return values in apps/req.c.
4167 [Nils Larsch <nla@trustcenter.de>]
4169 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
4170 an end-of-file condition would erronously be flagged, when the CRLF
4171 was just at the end of a processed block. The bug was discovered when
4172 processing data through a buffering memory BIO handing the data to a
4173 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
4174 <ptsekov@syntrex.com> and Nedelcho Stanev.
4177 *) Implement a countermeasure against a vulnerability recently found
4178 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
4179 before application data chunks to avoid the use of known IVs
4180 with data potentially chosen by the attacker.
4183 *) Fix length checks in ssl3_get_client_hello().
4186 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
4187 to prevent ssl3_read_internal() from incorrectly assuming that
4188 ssl3_read_bytes() found application data while handshake
4189 processing was enabled when in fact s->s3->in_read_app_data was
4190 merely automatically cleared during the initial handshake.
4191 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
4193 *) Fix object definitions for Private and Enterprise: they were not
4194 recognized in their shortname (=lowercase) representation. Extend
4195 obj_dat.pl to issue an error when using undefined keywords instead
4196 of silently ignoring the problem (Svenning Sorensen
4197 <sss@sss.dnsalias.net>).
4200 *) Fix DH_generate_parameters() so that it works for 'non-standard'
4201 generators, i.e. generators other than 2 and 5. (Previously, the
4202 code did not properly initialise the 'add' and 'rem' values to
4203 BN_generate_prime().)
4205 In the new general case, we do not insist that 'generator' is
4206 actually a primitive root: This requirement is rather pointless;
4207 a generator of the order-q subgroup is just as good, if not
4211 *) Map new X509 verification errors to alerts. Discovered and submitted by
4212 Tom Wu <tom@arcot.com>.
4215 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
4216 returning non-zero before the data has been completely received
4217 when using non-blocking I/O.
4218 [Bodo Moeller; problem pointed out by John Hughes]
4220 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
4221 [Ben Laurie, Lutz Jaenicke]
4223 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
4224 Yoram Zahavi <YoramZ@gilian.com>).
4227 *) Add information about CygWin 1.3 and on, and preserve proper
4228 configuration for the versions before that.
4229 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
4231 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
4232 check whether we deal with a copy of a session and do not delete from
4233 the cache in this case. Problem reported by "Izhar Shoshani Levi"
4234 <izhar@checkpoint.com>.
4237 *) Do not store session data into the internal session cache, if it
4238 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
4239 flag is set). Proposed by Aslam <aslam@funk.com>.
4242 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
4246 *) [In 0.9.6d-engine release:]
4247 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4248 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4250 *) Add the configuration target linux-s390x.
4251 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
4253 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
4254 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
4255 variable as an indication that a ClientHello message has been
4256 received. As the flag value will be lost between multiple
4257 invocations of ssl3_accept when using non-blocking I/O, the
4258 function may not be aware that a handshake has actually taken
4259 place, thus preventing a new session from being added to the
4262 To avoid this problem, we now set s->new_session to 2 instead of
4263 using a local variable.
4264 [Lutz Jaenicke, Bodo Moeller]
4266 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
4267 if the SSL_R_LENGTH_MISMATCH error is detected.
4268 [Geoff Thorpe, Bodo Moeller]
4270 *) New 'shared_ldflag' column in Configure platform table.
4273 *) Fix EVP_CIPHER_mode macro.
4274 ["Dan S. Camper" <dan@bti.net>]
4276 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
4277 type, we must throw them away by setting rr->length to 0.
4278 [D P Chang <dpc@qualys.com>]
4280 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
4282 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
4283 <Dominikus.Scherkl@biodata.com>. (The previous implementation
4284 worked incorrectly for those cases where range = 10..._2 and
4285 3*range is two bits longer than range.)
4288 *) Only add signing time to PKCS7 structures if it is not already
4292 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
4293 OBJ_ld_ce should be OBJ_id_ce.
4294 Also some ip-pda OIDs in crypto/objects/objects.txt were
4295 incorrect (cf. RFC 3039).
4296 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
4298 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
4299 returns early because it has nothing to do.
4300 [Andy Schneider <andy.schneider@bjss.co.uk>]
4302 *) [In 0.9.6c-engine release:]
4303 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
4304 [Andy Schneider <andy.schneider@bjss.co.uk>]
4306 *) [In 0.9.6c-engine release:]
4307 Add support for Cryptographic Appliance's keyserver technology.
4308 (Use engine 'keyclient')
4309 [Cryptographic Appliances and Geoff Thorpe]
4311 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
4312 is called via tools/c89.sh because arguments have to be
4313 rearranged (all '-L' options must appear before the first object
4315 [Richard Shapiro <rshapiro@abinitio.com>]
4317 *) [In 0.9.6c-engine release:]
4318 Add support for Broadcom crypto accelerator cards, backported
4320 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
4322 *) [In 0.9.6c-engine release:]
4323 Add support for SureWare crypto accelerator cards from
4324 Baltimore Technologies. (Use engine 'sureware')
4325 [Baltimore Technologies and Mark Cox]
4327 *) [In 0.9.6c-engine release:]
4328 Add support for crypto accelerator cards from Accelerated
4329 Encryption Processing, www.aep.ie. (Use engine 'aep')
4330 [AEP Inc. and Mark Cox]
4332 *) Add a configuration entry for gcc on UnixWare.
4333 [Gary Benson <gbenson@redhat.com>]
4335 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
4336 messages are stored in a single piece (fixed-length part and
4337 variable-length part combined) and fix various bugs found on the way.
4340 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
4341 instead. BIO_gethostbyname() does not know what timeouts are
4342 appropriate, so entries would stay in cache even when they have
4344 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
4346 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
4347 faced with a pathologically small ClientHello fragment that does
4348 not contain client_version: Instead of aborting with an error,
4349 simply choose the highest available protocol version (i.e.,
4350 TLS 1.0 unless it is disabled). In practice, ClientHello
4351 messages are never sent like this, but this change gives us
4352 strictly correct behaviour at least for TLS.
4355 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
4356 never resets s->method to s->ctx->method when called from within
4357 one of the SSL handshake functions.
4358 [Bodo Moeller; problem pointed out by Niko Baric]
4360 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
4361 (sent using the client's version number) if client_version is
4362 smaller than the protocol version in use. Also change
4363 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
4364 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
4365 the client will at least see that alert.
4368 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
4372 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
4373 client receives HelloRequest while in a handshake.
4374 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
4376 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
4377 should end in 'break', not 'goto end' which circuments various
4378 cleanups done in state SSL_ST_OK. But session related stuff
4379 must be disabled for SSL_ST_OK in the case that we just sent a
4382 Also avoid some overhead by not calling ssl_init_wbio_buffer()
4383 before just sending a HelloRequest.
4384 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
4386 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
4387 reveal whether illegal block cipher padding was found or a MAC
4388 verification error occured. (Neither SSLerr() codes nor alerts
4389 are directly visible to potential attackers, but the information
4390 may leak via logfiles.)
4392 Similar changes are not required for the SSL 2.0 implementation
4393 because the number of padding bytes is sent in clear for SSL 2.0,
4394 and the extra bytes are just ignored. However ssl/s2_pkt.c
4395 failed to verify that the purported number of padding bytes is in
4399 *) Add OpenUNIX-8 support including shared libraries
4400 (Boyd Lynn Gerber <gerberb@zenez.com>).
4403 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
4404 'wristwatch attack' using huge encoding parameters (cf.
4405 James H. Manger's CRYPTO 2001 paper). Note that the
4406 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
4407 encoding parameters and hence was not vulnerable.
4410 *) BN_sqr() bug fix.
4411 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
4413 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
4414 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
4415 followed by modular reduction.
4416 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
4418 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
4419 equivalent based on BN_pseudo_rand() instead of BN_rand().
4422 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
4423 This function was broken, as the check for a new client hello message
4424 to handle SGC did not allow these large messages.
4425 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
4428 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
4431 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
4432 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
4435 *) Rework the configuration and shared library support for Tru64 Unix.
4436 The configuration part makes use of modern compiler features and
4437 still retains old compiler behavior for those that run older versions
4438 of the OS. The shared library support part includes a variant that
4439 uses the RPATH feature, and is available through the special
4440 configuration target "alpha-cc-rpath", which will never be selected
4442 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
4444 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
4445 with the same message size as in ssl3_get_certificate_request().
4446 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
4447 messages might inadvertently be reject as too long.
4448 [Petr Lampa <lampa@fee.vutbr.cz>]
4450 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
4453 *) Modified SSL library such that the verify_callback that has been set
4454 specificly for an SSL object with SSL_set_verify() is actually being
4455 used. Before the change, a verify_callback set with this function was
4456 ignored and the verify_callback() set in the SSL_CTX at the time of
4457 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
4458 to allow the necessary settings.
4461 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
4462 explicitly to NULL, as at least on Solaris 8 this seems not always to be
4463 done automatically (in contradiction to the requirements of the C
4464 standard). This made problems when used from OpenSSH.
4467 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
4468 dh->length and always used
4470 BN_rand_range(priv_key, dh->p).
4472 BN_rand_range() is not necessary for Diffie-Hellman, and this
4473 specific range makes Diffie-Hellman unnecessarily inefficient if
4474 dh->length (recommended exponent length) is much smaller than the
4475 length of dh->p. We could use BN_rand_range() if the order of
4476 the subgroup was stored in the DH structure, but we only have
4481 BN_rand(priv_key, l, ...)
4483 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
4489 RSA_eay_public_encrypt
4490 RSA_eay_private_decrypt
4491 RSA_eay_private_encrypt (signing)
4492 RSA_eay_public_decrypt (signature verification)
4494 (default implementations for RSA_public_encrypt,
4495 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
4496 always reject numbers >= n.
4499 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
4500 to synchronize access to 'locking_thread'. This is necessary on
4501 systems where access to 'locking_thread' (an 'unsigned long'
4502 variable) is not atomic.
4505 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
4506 *before* setting the 'crypto_lock_rand' flag. The previous code had
4507 a race condition if 0 is a valid thread ID.
4508 [Travis Vitek <vitek@roguewave.com>]
4510 *) Add support for shared libraries under Irix.
4511 [Albert Chin-A-Young <china@thewrittenword.com>]
4513 *) Add configuration option to build on Linux on both big-endian and
4515 [Ralf Baechle <ralf@uni-koblenz.de>]
4517 *) Add the possibility to create shared libraries on HP-UX.
4520 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
4522 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
4523 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
4524 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
4525 PRNG state recovery was possible based on the output of
4526 one PRNG request appropriately sized to gain knowledge on
4527 'md' followed by enough consecutive 1-byte PRNG requests
4528 to traverse all of 'state'.
4530 1. When updating 'md_local' (the current thread's copy of 'md')
4531 during PRNG output generation, hash all of the previous
4532 'md_local' value, not just the half used for PRNG output.
4534 2. Make the number of bytes from 'state' included into the hash
4535 independent from the number of PRNG bytes requested.
4537 The first measure alone would be sufficient to avoid
4538 Markku-Juhani's attack. (Actually it had never occurred
4539 to me that the half of 'md_local' used for chaining was the
4540 half from which PRNG output bytes were taken -- I had always
4541 assumed that the secret half would be used.) The second
4542 measure makes sure that additional data from 'state' is never
4543 mixed into 'md_local' in small portions; this heuristically
4544 further strengthens the PRNG.
4547 *) Fix crypto/bn/asm/mips3.s.
4550 *) When only the key is given to "enc", the IV is undefined. Print out
4551 an error message in this case.
4554 *) Handle special case when X509_NAME is empty in X509 printing routines.
4557 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
4558 positive and less than q.
4561 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
4562 used: it isn't thread safe and the add_lock_callback should handle
4564 [Paul Rose <Paul.Rose@bridge.com>]
4566 *) Verify that incoming data obeys the block size in
4567 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
4571 [Ulf Möller, Bodo Möller]
4573 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
4574 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
4575 when fixing the server behaviour for backwards-compatible 'client
4576 hello' messages. (Note that the attack is impractical against
4577 SSL 3.0 and TLS 1.0 anyway because length and version checking
4578 means that the probability of guessing a valid ciphertext is
4579 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
4582 Before 0.9.5, the countermeasure (hide the error by generating a
4583 random 'decryption result') did not work properly because
4584 ERR_clear_error() was missing, meaning that SSL_get_error() would
4585 detect the supposedly ignored error.
4587 Both problems are now fixed.
4590 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
4591 (previously it was 1024).
4594 *) Fix for compatibility mode trust settings: ignore trust settings
4595 unless some valid trust or reject settings are present.
4598 *) Fix for blowfish EVP: its a variable length cipher.
4601 *) Fix various bugs related to DSA S/MIME verification. Handle missing
4602 parameters in DSA public key structures and return an error in the
4603 DSA routines if parameters are absent.
4606 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
4607 in the current directory if neither $RANDFILE nor $HOME was set.
4608 RAND_file_name() in 0.9.6a returned NULL in this case. This has
4609 caused some confusion to Windows users who haven't defined $HOME.
4610 Thus RAND_file_name() is changed again: e_os.h can define a
4611 DEFAULT_HOME, which will be used if $HOME is not set.
4612 For Windows, we use "C:"; on other platforms, we still require
4613 environment variables.
4615 *) Move 'if (!initialized) RAND_poll()' into regions protected by
4616 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
4617 having multiple threads call RAND_poll() concurrently.
4620 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
4621 combination of a flag and a thread ID variable.
4622 Otherwise while one thread is in ssleay_rand_bytes (which sets the
4623 flag), *other* threads can enter ssleay_add_bytes without obeying
4624 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
4625 that they do not hold after the first thread unsets add_do_not_lock).
4628 *) Change bctest again: '-x' expressions are not available in all
4632 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
4634 *) Fix a couple of memory leaks in PKCS7_dataDecode()
4635 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
4637 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
4638 the default extension for executables, if any. Also, make the perl
4639 scripts that use symlink() to test if it really exists and use "cp"
4640 if it doesn't. All this made OpenSSL compilable and installable in
4644 *) Fix for asn1_GetSequence() for indefinite length constructed data.
4645 If SEQUENCE is length is indefinite just set c->slen to the total
4646 amount of data available.
4647 [Steve Henson, reported by shige@FreeBSD.org]
4648 [This change does not apply to 0.9.7.]
4650 *) Change bctest to avoid here-documents inside command substitution
4651 (workaround for FreeBSD /bin/sh bug).
4652 For compatibility with Ultrix, avoid shell functions (introduced
4653 in the bctest version that searches along $PATH).
4656 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
4657 with des_encrypt() defined on some operating systems, like Solaris
4661 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
4662 On the Importance of Eliminating Errors in Cryptographic
4663 Computations, J. Cryptology 14 (2001) 2, 101-119,
4664 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
4667 *) MIPS assembler BIGNUM division bug fix.
4670 *) Disabled incorrect Alpha assembler code.
4673 *) Fix PKCS#7 decode routines so they correctly update the length
4674 after reading an EOC for the EXPLICIT tag.
4676 [This change does not apply to 0.9.7.]
4678 *) Fix bug in PKCS#12 key generation routines. This was triggered
4679 if a 3DES key was generated with a 0 initial byte. Include
4680 PKCS12_BROKEN_KEYGEN compilation option to retain the old
4681 (but broken) behaviour.
4684 *) Enhance bctest to search for a working bc along $PATH and print
4686 [Tim Rice <tim@multitalents.net> via Richard Levitte]
4688 *) Fix memory leaks in err.c: free err_data string if necessary;
4689 don't write to the wrong index in ERR_set_error_data.
4692 *) Implement ssl23_peek (analogous to ssl23_read), which previously
4696 *) Replace rdtsc with _emit statements for VC++ version 5.
4697 [Jeremy Cooper <jeremy@baymoo.org>]
4699 *) Make it possible to reuse SSLv2 sessions.
4702 *) In copy_email() check for >= 0 as a return value for
4703 X509_NAME_get_index_by_NID() since 0 is a valid index.
4704 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
4706 *) Avoid coredump with unsupported or invalid public keys by checking if
4707 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
4708 PKCS7_verify() fails with non detached data.
4711 *) Don't use getenv in library functions when run as setuid/setgid.
4712 New function OPENSSL_issetugid().
4715 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
4716 due to incorrect handling of multi-threading:
4718 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
4720 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
4722 3. Count how many times MemCheck_off() has been called so that
4723 nested use can be treated correctly. This also avoids
4724 inband-signalling in the previous code (which relied on the
4725 assumption that thread ID 0 is impossible).
4728 *) Add "-rand" option also to s_client and s_server.
4731 *) Fix CPU detection on Irix 6.x.
4732 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
4733 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4735 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
4738 [This change does not apply to 0.9.7.]
4740 *) Use the cached encoding of an X509_NAME structure rather than
4741 copying it. This is apparently the reason for the libsafe "errors"
4742 but the code is actually correct.
4745 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
4746 Bleichenbacher's DSA attack.
4747 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
4748 to be set and top=0 forces the highest bit to be set; top=-1 is new
4749 and leaves the highest bit random.
4750 [Ulf Moeller, Bodo Moeller]
4752 *) In the NCONF_...-based implementations for CONF_... queries
4753 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
4754 a temporary CONF structure with the data component set to NULL
4755 (which gives segmentation faults in lh_retrieve).
4756 Instead, use NULL for the CONF pointer in CONF_get_string and
4757 CONF_get_number (which may use environment variables) and directly
4758 return NULL from CONF_get_section.
4761 *) Fix potential buffer overrun for EBCDIC.
4764 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
4765 keyUsage if basicConstraints absent for a CA.
4768 *) Make SMIME_write_PKCS7() write mail header values with a format that
4769 is more generally accepted (no spaces before the semicolon), since
4770 some programs can't parse those values properly otherwise. Also make
4771 sure BIO's that break lines after each write do not create invalid
4775 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
4776 macros previously used would not encode an empty SEQUENCE OF
4777 and break the signature.
4779 [This change does not apply to 0.9.7.]
4781 *) Zero the premaster secret after deriving the master secret in
4785 *) Add some EVP_add_digest_alias registrations (as found in
4786 OpenSSL_add_all_digests()) to SSL_library_init()
4787 aka OpenSSL_add_ssl_algorithms(). This provides improved
4788 compatibility with peers using X.509 certificates
4789 with unconventional AlgorithmIdentifier OIDs.
4792 *) Fix for Irix with NO_ASM.
4793 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4795 *) ./config script fixes.
4796 [Ulf Moeller, Richard Levitte]
4798 *) Fix 'openssl passwd -1'.
4801 *) Change PKCS12_key_gen_asc() so it can cope with non null
4802 terminated strings whose length is passed in the passlen
4803 parameter, for example from PEM callbacks. This was done
4804 by adding an extra length parameter to asc2uni().
4805 [Steve Henson, reported by <oddissey@samsung.co.kr>]
4807 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
4808 call failed, free the DSA structure.
4811 *) Fix to uni2asc() to cope with zero length Unicode strings.
4812 These are present in some PKCS#12 files.
4815 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
4816 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
4817 when writing a 32767 byte record.
4818 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
4820 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
4821 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
4823 (RSA objects have a reference count access to which is protected
4824 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
4825 so they are meant to be shared between threads.)
4826 [Bodo Moeller, Geoff Thorpe; original patch submitted by
4827 "Reddie, Steven" <Steven.Reddie@ca.com>]
4829 *) Fix a deadlock in CRYPTO_mem_leaks().
4832 *) Use better test patterns in bntest.
4835 *) rand_win.c fix for Borland C.
4838 *) BN_rshift bugfix for n == 0.
4841 *) Add a 'bctest' script that checks for some known 'bc' bugs
4842 so that 'make test' does not abort just because 'bc' is broken.
4845 *) Store verify_result within SSL_SESSION also for client side to
4846 avoid potential security hole. (Re-used sessions on the client side
4847 always resulted in verify_result==X509_V_OK, not using the original
4848 result of the server certificate verification.)
4851 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
4852 SSL3_RT_APPLICATION_DATA, return 0.
4853 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
4857 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
4858 releases, have been re-implemented by renaming the previous
4859 implementations of ssl2_read and ssl3_read to ssl2_read_internal
4860 and ssl3_read_internal, respectively, and adding 'peek' parameters
4861 to them. The new ssl[23]_{read,peek} functions are calls to
4862 ssl[23]_read_internal with the 'peek' flag set appropriately.
4863 A 'peek' parameter has also been added to ssl3_read_bytes, which
4864 does the actual work for ssl3_read_internal.
4867 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
4868 the method-specific "init()" handler. Also clean up ex_data after
4869 calling the method-specific "finish()" handler. Previously, this was
4870 happening the other way round.
4873 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
4874 The previous value, 12, was not always sufficient for BN_mod_exp().
4877 *) Make sure that shared libraries get the internal name engine with
4878 the full version number and not just 0. This should mark the
4879 shared libraries as not backward compatible. Of course, this should
4880 be changed again when we can guarantee backward binary compatibility.
4883 *) Fix typo in get_cert_by_subject() in by_dir.c
4884 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
4886 *) Rework the system to generate shared libraries:
4888 - Make note of the expected extension for the shared libraries and
4889 if there is a need for symbolic links from for example libcrypto.so.0
4890 to libcrypto.so.0.9.7. There is extended info in Configure for
4893 - Make as few rebuilds of the shared libraries as possible.
4895 - Still avoid linking the OpenSSL programs with the shared libraries.
4897 - When installing, install the shared libraries separately from the
4901 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
4903 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
4904 and not in SSL_clear because the latter is also used by the
4905 accept/connect functions; previously, the settings made by
4906 SSL_set_read_ahead would be lost during the handshake.
4907 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
4909 *) Correct util/mkdef.pl to be selective about disabled algorithms.
4910 Previously, it would create entries for disableed algorithms no
4914 *) Added several new manual pages for SSL_* function.
4917 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
4919 *) In ssl23_get_client_hello, generate an error message when faced
4920 with an initial SSL 3.0/TLS record that is too small to contain the
4921 first two bytes of the ClientHello message, i.e. client_version.
4922 (Note that this is a pathologic case that probably has never happened
4923 in real life.) The previous approach was to use the version number
4924 from the record header as a substitute; but our protocol choice
4925 should not depend on that one because it is not authenticated
4926 by the Finished messages.
4929 *) More robust randomness gathering functions for Windows.
4930 [Jeffrey Altman <jaltman@columbia.edu>]
4932 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
4933 not set then we don't setup the error code for issuer check errors
4934 to avoid possibly overwriting other errors which the callback does
4935 handle. If an application does set the flag then we assume it knows
4936 what it is doing and can handle the new informational codes
4940 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
4941 a general "ANY" type, as such it should be able to decode anything
4942 including tagged types. However it didn't check the class so it would
4943 wrongly interpret tagged types in the same way as their universal
4944 counterpart and unknown types were just rejected. Changed so that the
4945 tagged and unknown types are handled in the same way as a SEQUENCE:
4946 that is the encoding is stored intact. There is also a new type
4947 "V_ASN1_OTHER" which is used when the class is not universal, in this
4948 case we have no idea what the actual type is so we just lump them all
4952 *) On VMS, stdout may very well lead to a file that is written to
4953 in a record-oriented fashion. That means that every write() will
4954 write a separate record, which will be read separately by the
4955 programs trying to read from it. This can be very confusing.
4957 The solution is to put a BIO filter in the way that will buffer
4958 text until a linefeed is reached, and then write everything a
4959 line at a time, so every record written will be an actual line,
4960 not chunks of lines and not (usually doesn't happen, but I've
4961 seen it once) several lines in one record. BIO_f_linebuffer() is
4964 Currently, it's a VMS-only method, because that's where it has
4965 been tested well enough.
4968 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
4969 it can return incorrect results.
4970 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
4971 but it was in 0.9.6-beta[12].)
4974 *) Disable the check for content being present when verifying detached
4975 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
4976 include zero length content when signing messages.
4979 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
4980 BIO_ctrl (for BIO pairs).
4983 *) Add DSO method for VMS.
4986 *) Bug fix: Montgomery multiplication could produce results with the
4990 *) Add RPM specification openssl.spec and modify it to build three
4991 packages. The default package contains applications, application
4992 documentation and run-time libraries. The devel package contains
4993 include files, static libraries and function documentation. The
4994 doc package contains the contents of the doc directory. The original
4995 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
4998 *) Add a large number of documentation files for many SSL routines.
4999 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5001 *) Add a configuration entry for Sony News 4.
5002 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
5004 *) Don't set the two most significant bits to one when generating a
5005 random number < q in the DSA library.
5008 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
5009 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
5010 the underlying transport is blocking) if a handshake took place.
5011 (The default behaviour is needed by applications such as s_client
5012 and s_server that use select() to determine when to use SSL_read;
5013 but for applications that know in advance when to expect data, it
5014 just makes things more complicated.)
5017 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
5021 *) Add a few more EBCDIC conditionals that make `req' and `x509'
5022 work better on such systems.
5023 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
5025 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
5026 Update PKCS12_parse() so it copies the friendlyName and the
5027 keyid to the certificates aux info.
5030 *) Fix bug in PKCS7_verify() which caused an infinite loop
5031 if there was more than one signature.
5032 [Sven Uszpelkat <su@celocom.de>]
5034 *) Major change in util/mkdef.pl to include extra information
5035 about each symbol, as well as presentig variables as well
5036 as functions. This change means that there's n more need
5037 to rebuild the .num files when some algorithms are excluded.
5040 *) Allow the verify time to be set by an application,
5041 rather than always using the current time.
5044 *) Phase 2 verify code reorganisation. The certificate
5045 verify code now looks up an issuer certificate by a
5046 number of criteria: subject name, authority key id
5047 and key usage. It also verifies self signed certificates
5048 by the same criteria. The main comparison function is
5049 X509_check_issued() which performs these checks.
5051 Lot of changes were necessary in order to support this
5052 without completely rewriting the lookup code.
5054 Authority and subject key identifier are now cached.
5056 The LHASH 'certs' is X509_STORE has now been replaced
5057 by a STACK_OF(X509_OBJECT). This is mainly because an
5058 LHASH can't store or retrieve multiple objects with
5059 the same hash value.
5061 As a result various functions (which were all internal
5062 use only) have changed to handle the new X509_STORE
5063 structure. This will break anything that messed round
5064 with X509_STORE internally.
5066 The functions X509_STORE_add_cert() now checks for an
5067 exact match, rather than just subject name.
5069 The X509_STORE API doesn't directly support the retrieval
5070 of multiple certificates matching a given criteria, however
5071 this can be worked round by performing a lookup first
5072 (which will fill the cache with candidate certificates)
5073 and then examining the cache for matches. This is probably
5074 the best we can do without throwing out X509_LOOKUP
5075 entirely (maybe later...).
5077 The X509_VERIFY_CTX structure has been enhanced considerably.
5079 All certificate lookup operations now go via a get_issuer()
5080 callback. Although this currently uses an X509_STORE it
5081 can be replaced by custom lookups. This is a simple way
5082 to bypass the X509_STORE hackery necessary to make this
5083 work and makes it possible to use more efficient techniques
5084 in future. A very simple version which uses a simple
5085 STACK for its trusted certificate store is also provided
5086 using X509_STORE_CTX_trusted_stack().
5088 The verify_cb() and verify() callbacks now have equivalents
5089 in the X509_STORE_CTX structure.
5091 X509_STORE_CTX also has a 'flags' field which can be used
5092 to customise the verify behaviour.
5095 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
5096 excludes S/MIME capabilities.
5099 *) When a certificate request is read in keep a copy of the
5100 original encoding of the signed data and use it when outputing
5101 again. Signatures then use the original encoding rather than
5102 a decoded, encoded version which may cause problems if the
5103 request is improperly encoded.
5106 *) For consistency with other BIO_puts implementations, call
5107 buffer_write(b, ...) directly in buffer_puts instead of calling
5110 In BIO_puts, increment b->num_write as in BIO_write.
5111 [Peter.Sylvester@EdelWeb.fr]
5113 *) Fix BN_mul_word for the case where the word is 0. (We have to use
5114 BN_zero, we may not return a BIGNUM with an array consisting of
5118 *) Avoid calling abort() from within the library when problems are
5119 detected, except if preprocessor symbols have been defined
5120 (such as REF_CHECK, BN_DEBUG etc.).
5123 *) New openssl application 'rsautl'. This utility can be
5124 used for low level RSA operations. DER public key
5125 BIO/fp routines also added.
5128 *) New Configure entry and patches for compiling on QNX 4.
5129 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
5131 *) A demo state-machine implementation was sponsored by
5132 Nuron (http://www.nuron.com/) and is now available in
5133 demos/state_machine.
5136 *) New options added to the 'dgst' utility for signature
5137 generation and verification.
5140 *) Unrecognized PKCS#7 content types are now handled via a
5141 catch all ASN1_TYPE structure. This allows unsupported
5142 types to be stored as a "blob" and an application can
5143 encode and decode it manually.
5146 *) Fix various signed/unsigned issues to make a_strex.c
5148 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
5150 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
5151 length if passed a buffer. ASN1_INTEGER_to_BN failed
5152 if passed a NULL BN and its argument was negative.
5153 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
5155 *) Modification to PKCS#7 encoding routines to output definite
5156 length encoding. Since currently the whole structures are in
5157 memory there's not real point in using indefinite length
5158 constructed encoding. However if OpenSSL is compiled with
5159 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
5162 *) Added BIO_vprintf() and BIO_vsnprintf().
5165 *) Added more prefixes to parse for in the the strings written
5166 through a logging bio, to cover all the levels that are available
5167 through syslog. The prefixes are now:
5169 PANIC, EMERG, EMR => LOG_EMERG
5170 ALERT, ALR => LOG_ALERT
5171 CRIT, CRI => LOG_CRIT
5172 ERROR, ERR => LOG_ERR
5173 WARNING, WARN, WAR => LOG_WARNING
5174 NOTICE, NOTE, NOT => LOG_NOTICE
5175 INFO, INF => LOG_INFO
5176 DEBUG, DBG => LOG_DEBUG
5178 and as before, if none of those prefixes are present at the
5179 beginning of the string, LOG_ERR is chosen.
5181 On Win32, the LOG_* levels are mapped according to this:
5183 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
5184 LOG_WARNING => EVENTLOG_WARNING_TYPE
5185 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
5189 *) Made it possible to reconfigure with just the configuration
5190 argument "reconf" or "reconfigure". The command line arguments
5191 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
5192 and are retrieved from there when reconfiguring.
5196 [Assar Westerlund <assar@sics.se>, Richard Levitte]
5198 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
5201 *) The obj_dat.pl script was messing up the sorting of object
5202 names. The reason was that it compared the quoted version
5203 of strings as a result "OCSP" > "OCSP Signing" because
5204 " > SPACE. Changed script to store unquoted versions of
5205 names and add quotes on output. It was also omitting some
5206 names from the lookup table if they were given a default
5207 value (that is if SN is missing it is given the same
5208 value as LN and vice versa), these are now added on the
5209 grounds that if an object has a name we should be able to
5210 look it up. Finally added warning output when duplicate
5211 short or long names are found.
5214 *) Changes needed for Tandem NSK.
5215 [Scott Uroff <scott@xypro.com>]
5217 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
5218 RSA_padding_check_SSLv23(), special padding was never detected
5219 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
5220 version rollback attacks was not effective.
5222 In s23_clnt.c, don't use special rollback-attack detection padding
5223 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
5224 client; similarly, in s23_srvr.c, don't do the rollback check if
5225 SSL 2.0 is the only protocol enabled in the server.
5228 *) Make it possible to get hexdumps of unprintable data with 'openssl
5229 asn1parse'. By implication, the functions ASN1_parse_dump() and
5230 BIO_dump_indent() are added.
5233 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
5234 these print out strings and name structures based on various
5235 flags including RFC2253 support and proper handling of
5236 multibyte characters. Added options to the 'x509' utility
5237 to allow the various flags to be set.
5240 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
5241 Also change the functions X509_cmp_current_time() and
5242 X509_gmtime_adj() work with an ASN1_TIME structure,
5243 this will enable certificates using GeneralizedTime in validity
5244 dates to be checked.
5247 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
5248 negative public key encodings) on by default,
5249 NO_NEG_PUBKEY_BUG can be set to disable it.
5252 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
5253 content octets. An i2c_ASN1_OBJECT is unnecessary because
5254 the encoding can be trivially obtained from the structure.
5257 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
5258 not read locks (CRYPTO_r_[un]lock).
5261 *) A first attempt at creating official support for shared
5262 libraries through configuration. I've kept it so the
5263 default is static libraries only, and the OpenSSL programs
5264 are always statically linked for now, but there are
5265 preparations for dynamic linking in place.
5266 This has been tested on Linux and Tru64.
5269 *) Randomness polling function for Win9x, as described in:
5270 Peter Gutmann, Software Generation of Practically Strong
5274 *) Fix so PRNG is seeded in req if using an already existing
5278 *) New options to smime application. -inform and -outform
5279 allow alternative formats for the S/MIME message including
5280 PEM and DER. The -content option allows the content to be
5281 specified separately. This should allow things like Netscape
5282 form signing output easier to verify.
5285 *) Fix the ASN1 encoding of tags using the 'long form'.
5288 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
5289 STRING types. These convert content octets to and from the
5290 underlying type. The actual tag and length octets are
5291 already assumed to have been read in and checked. These
5292 are needed because all other string types have virtually
5293 identical handling apart from the tag. By having versions
5294 of the ASN1 functions that just operate on content octets
5295 IMPLICIT tagging can be handled properly. It also allows
5296 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
5297 and ASN1_INTEGER are identical apart from the tag.
5300 *) Change the handling of OID objects as follows:
5302 - New object identifiers are inserted in objects.txt, following
5303 the syntax given in objects.README.
5304 - objects.pl is used to process obj_mac.num and create a new
5306 - obj_dat.pl is used to create a new obj_dat.h, using the data in
5309 This is currently kind of a hack, and the perl code in objects.pl
5310 isn't very elegant, but it works as I intended. The simplest way
5311 to check that it worked correctly is to look in obj_dat.h and
5312 check the array nid_objs and make sure the objects haven't moved
5313 around (this is important!). Additions are OK, as well as
5314 consistent name changes.
5317 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
5320 *) Addition of the command line parameter '-rand file' to 'openssl req'.
5321 The given file adds to whatever has already been seeded into the
5322 random pool through the RANDFILE configuration file option or
5323 environment variable, or the default random state file.
5326 *) mkstack.pl now sorts each macro group into lexical order.
5327 Previously the output order depended on the order the files
5328 appeared in the directory, resulting in needless rewriting
5332 *) Patches to make OpenSSL compile under Win32 again. Mostly
5333 work arounds for the VC++ problem that it treats func() as
5334 func(void). Also stripped out the parts of mkdef.pl that
5335 added extra typesafe functions: these no longer exist.
5338 *) Reorganisation of the stack code. The macros are now all
5339 collected in safestack.h . Each macro is defined in terms of
5340 a "stack macro" of the form SKM_<name>(type, a, b). The
5341 DEBUG_SAFESTACK is now handled in terms of function casts,
5342 this has the advantage of retaining type safety without the
5343 use of additional functions. If DEBUG_SAFESTACK is not defined
5344 then the non typesafe macros are used instead. Also modified the
5345 mkstack.pl script to handle the new form. Needs testing to see
5346 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
5347 the default if no major problems. Similar behaviour for ASN1_SET_OF
5348 and PKCS12_STACK_OF.
5351 *) When some versions of IIS use the 'NET' form of private key the
5352 key derivation algorithm is different. Normally MD5(password) is
5353 used as a 128 bit RC4 key. In the modified case
5354 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
5355 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
5356 as the old Netscape_RSA functions except they have an additional
5357 'sgckey' parameter which uses the modified algorithm. Also added
5358 an -sgckey command line option to the rsa utility. Thanks to
5359 Adrian Peck <bertie@ncipher.com> for posting details of the modified
5360 algorithm to openssl-dev.
5363 *) The evp_local.h macros were using 'c.##kname' which resulted in
5364 invalid expansion on some systems (SCO 5.0.5 for example).
5365 Corrected to 'c.kname'.
5366 [Phillip Porch <root@theporch.com>]
5368 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
5369 a STACK of email addresses from a certificate or request, these look
5370 in the subject name and the subject alternative name extensions and
5371 omit any duplicate addresses.
5374 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
5375 This makes DSA verification about 2 % faster.
5378 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
5379 (meaning that now 2^5 values will be precomputed, which is only 4 KB
5380 plus overhead for 1024 bit moduli).
5381 This makes exponentiations about 0.5 % faster for 1024 bit
5382 exponents (as measured by "openssl speed rsa2048").
5385 *) Rename memory handling macros to avoid conflicts with other
5387 Malloc => OPENSSL_malloc
5388 Malloc_locked => OPENSSL_malloc_locked
5389 Realloc => OPENSSL_realloc
5390 Free => OPENSSL_free
5393 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
5394 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
5397 *) CygWin32 support.
5398 [John Jarvie <jjarvie@newsguy.com>]
5400 *) The type-safe stack code has been rejigged. It is now only compiled
5401 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
5402 by default all type-specific stack functions are "#define"d back to
5403 standard stack functions. This results in more streamlined output
5404 but retains the type-safety checking possibilities of the original
5408 *) The STACK code has been cleaned up, and certain type declarations
5409 that didn't make a lot of sense have been brought in line. This has
5410 also involved a cleanup of sorts in safestack.h to more correctly
5411 map type-safe stack functions onto their plain stack counterparts.
5412 This work has also resulted in a variety of "const"ifications of
5413 lots of the code, especially "_cmp" operations which should normally
5414 be prototyped with "const" parameters anyway.
5417 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
5418 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
5419 (The PRNG state consists of two parts, the large pool 'state' and 'md',
5420 where all of 'md' is used each time the PRNG is used, but 'state'
5421 is used only indexed by a cyclic counter. As entropy may not be
5422 well distributed from the beginning, 'md' is important as a
5423 chaining variable. However, the output function chains only half
5424 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
5425 all of 'md', and seeding with STATE_SIZE dummy bytes will result
5426 in all of 'state' being rewritten, with the new values depending
5427 on virtually all of 'md'. This overcomes the 80 bit limitation.)
5430 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
5431 the handshake is continued after ssl_verify_cert_chain();
5432 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
5433 can lead to 'unexplainable' connection aborts later.
5434 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
5436 *) Major EVP API cipher revision.
5437 Add hooks for extra EVP features. This allows various cipher
5438 parameters to be set in the EVP interface. Support added for variable
5439 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
5440 setting of RC2 and RC5 parameters.
5442 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
5445 Remove lots of duplicated code from the EVP library. For example *every*
5446 cipher init() function handles the 'iv' in the same way according to the
5447 cipher mode. They also all do nothing if the 'key' parameter is NULL and
5448 for CFB and OFB modes they zero ctx->num.
5450 New functionality allows removal of S/MIME code RC2 hack.
5452 Most of the routines have the same form and so can be declared in terms
5455 By shifting this to the top level EVP_CipherInit() it can be removed from
5456 all individual ciphers. If the cipher wants to handle IVs or keys
5457 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
5460 Change lots of functions like EVP_EncryptUpdate() to now return a
5461 value: although software versions of the algorithms cannot fail
5462 any installed hardware versions can.
5465 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
5466 this option is set, tolerate broken clients that send the negotiated
5467 protocol version number instead of the requested protocol version
5471 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
5472 i.e. non-zero for export ciphersuites, zero otherwise.
5473 Previous versions had this flag inverted, inconsistent with
5474 rsa_tmp_cb (..._TMP_RSA_CB).
5475 [Bodo Moeller; problem reported by Amit Chopra]
5477 *) Add missing DSA library text string. Work around for some IIS
5478 key files with invalid SEQUENCE encoding.
5481 *) Add a document (doc/standards.txt) that list all kinds of standards
5482 and so on that are implemented in OpenSSL.
5485 *) Enhance c_rehash script. Old version would mishandle certificates
5486 with the same subject name hash and wouldn't handle CRLs at all.
5487 Added -fingerprint option to crl utility, to support new c_rehash
5491 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
5494 *) Fix for SSL server purpose checking. Server checking was
5495 rejecting certificates which had extended key usage present
5496 but no ssl client purpose.
5497 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
5499 *) Make PKCS#12 code work with no password. The PKCS#12 spec
5500 is a little unclear about how a blank password is handled.
5501 Since the password in encoded as a BMPString with terminating
5502 double NULL a zero length password would end up as just the
5503 double NULL. However no password at all is different and is
5504 handled differently in the PKCS#12 key generation code. NS
5505 treats a blank password as zero length. MSIE treats it as no
5506 password on export: but it will try both on import. We now do
5507 the same: PKCS12_parse() tries zero length and no password if
5508 the password is set to "" or NULL (NULL is now a valid password:
5509 it wasn't before) as does the pkcs12 application.
5512 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
5513 perror when PEM_read_bio_X509_REQ fails, the error message must
5514 be obtained from the error queue.
5517 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
5518 it in ERR_remove_state if appropriate, and change ERR_get_state
5519 accordingly to avoid race conditions (this is necessary because
5520 thread_hash is no longer constant once set).
5523 *) Bugfix for linux-elf makefile.one.
5526 *) RSA_get_default_method() will now cause a default
5527 RSA_METHOD to be chosen if one doesn't exist already.
5528 Previously this was only set during a call to RSA_new()
5529 or RSA_new_method(NULL) meaning it was possible for
5530 RSA_get_default_method() to return NULL.
5533 *) Added native name translation to the existing DSO code
5534 that will convert (if the flag to do so is set) filenames
5535 that are sufficiently small and have no path information
5536 into a canonical native form. Eg. "blah" converted to
5537 "libblah.so" or "blah.dll" etc.
5540 *) New function ERR_error_string_n(e, buf, len) which is like
5541 ERR_error_string(e, buf), but writes at most 'len' bytes
5542 including the 0 terminator. For ERR_error_string_n, 'buf'
5544 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
5546 *) CONF library reworked to become more general. A new CONF
5547 configuration file reader "class" is implemented as well as a
5548 new functions (NCONF_*, for "New CONF") to handle it. The now
5549 old CONF_* functions are still there, but are reimplemented to
5550 work in terms of the new functions. Also, a set of functions
5551 to handle the internal storage of the configuration data is
5552 provided to make it easier to write new configuration file
5553 reader "classes" (I can definitely see something reading a
5554 configuration file in XML format, for example), called _CONF_*,
5555 or "the configuration storage API"...
5557 The new configuration file reading functions are:
5559 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
5560 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
5562 NCONF_default, NCONF_WIN32
5564 NCONF_dump_fp, NCONF_dump_bio
5566 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
5567 NCONF_new creates a new CONF object. This works in the same way
5568 as other interfaces in OpenSSL, like the BIO interface.
5569 NCONF_dump_* dump the internal storage of the configuration file,
5570 which is useful for debugging. All other functions take the same
5571 arguments as the old CONF_* functions wth the exception of the
5572 first that must be a `CONF *' instead of a `LHASH *'.
5574 To make it easer to use the new classes with the old CONF_* functions,
5575 the function CONF_set_default_method is provided.
5578 *) Add '-tls1' option to 'openssl ciphers', which was already
5579 mentioned in the documentation but had not been implemented.
5580 (This option is not yet really useful because even the additional
5581 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
5584 *) Initial DSO code added into libcrypto for letting OpenSSL (and
5585 OpenSSL-based applications) load shared libraries and bind to
5586 them in a portable way.
5587 [Geoff Thorpe, with contributions from Richard Levitte]
5589 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
5591 *) Make sure _lrotl and _lrotr are only used with MSVC.
5593 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
5594 (the default implementation of RAND_status).
5596 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
5597 to '-clrext' (= clear extensions), as intended and documented.
5598 [Bodo Moeller; inconsistency pointed out by Michael Attili
5601 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
5602 was larger than the MD block size.
5603 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
5605 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
5606 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
5607 using the passed key: if the passed key was a private key the result
5608 of X509_print(), for example, would be to print out all the private key
5612 *) des_quad_cksum() byte order bug fix.
5613 [Ulf Möller, using the problem description in krb4-0.9.7, where
5614 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
5616 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
5618 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
5620 *) For easily testing in shell scripts whether some command
5621 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
5622 returns with exit code 0 iff no command of the given name is available.
5623 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
5624 the output goes to stdout and nothing is printed to stderr.
5625 Additional arguments are always ignored.
5627 Since for each cipher there is a command of the same name,
5628 the 'no-cipher' compilation switches can be tested this way.
5630 ('openssl no-XXX' is not able to detect pseudo-commands such
5631 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
5634 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
5637 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
5638 is set; it will be thrown away anyway because each handshake creates
5640 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
5641 to parameters -- in previous versions (since OpenSSL 0.9.3) the
5642 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
5643 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
5646 *) New s_client option -ign_eof: EOF at stdin is ignored, and
5647 'Q' and 'R' lose their special meanings (quit/renegotiate).
5648 This is part of what -quiet does; unlike -quiet, -ign_eof
5649 does not suppress any output.
5652 *) Add compatibility options to the purpose and trust code. The
5653 purpose X509_PURPOSE_ANY is "any purpose" which automatically
5654 accepts a certificate or CA, this was the previous behaviour,
5655 with all the associated security issues.
5657 X509_TRUST_COMPAT is the old trust behaviour: only and
5658 automatically trust self signed roots in certificate store. A
5659 new trust setting X509_TRUST_DEFAULT is used to specify that
5660 a purpose has no associated trust setting and it should instead
5661 use the value in the default purpose.
5664 *) Fix the PKCS#8 DSA private key code so it decodes keys again
5665 and fix a memory leak.
5668 *) In util/mkerr.pl (which implements 'make errors'), preserve
5669 reason strings from the previous version of the .c file, as
5670 the default to have only downcase letters (and digits) in
5671 automatically generated reasons codes is not always appropriate.
5674 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
5675 using strerror. Previously, ERR_reason_error_string() returned
5676 library names as reason strings for SYSerr; but SYSerr is a special
5677 case where small numbers are errno values, not library numbers.
5680 *) Add '-dsaparam' option to 'openssl dhparam' application. This
5681 converts DSA parameters into DH parameters. (When creating parameters,
5682 DSA_generate_parameters is used.)
5685 *) Include 'length' (recommended exponent length) in C code generated
5686 by 'openssl dhparam -C'.
5689 *) The second argument to set_label in perlasm was already being used
5690 so couldn't be used as a "file scope" flag. Moved to third argument
5694 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
5695 instead of RAND_bytes for encryption IVs and salts.
5698 *) Include RAND_status() into RAND_METHOD instead of implementing
5699 it only for md_rand.c Otherwise replacing the PRNG by calling
5700 RAND_set_rand_method would be impossible.
5703 *) Don't let DSA_generate_key() enter an infinite loop if the random
5704 number generation fails.
5707 *) New 'rand' application for creating pseudo-random output.
5710 *) Added configuration support for Linux/IA64
5711 [Rolf Haberrecker <rolf@suse.de>]
5713 *) Assembler module support for Mingw32.
5716 *) Shared library support for HPUX (in shlib/).
5717 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
5719 *) Shared library support for Solaris gcc.
5720 [Lutz Behnke <behnke@trustcenter.de>]
5722 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
5724 *) PKCS7_encrypt() was adding text MIME headers twice because they
5725 were added manually and by SMIME_crlf_copy().
5728 *) In bntest.c don't call BN_rand with zero bits argument.
5729 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
5731 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
5732 case was implemented. This caused BN_div_recp() to fail occasionally.
5735 *) Add an optional second argument to the set_label() in the perl
5736 assembly language builder. If this argument exists and is set
5737 to 1 it signals that the assembler should use a symbol whose
5738 scope is the entire file, not just the current function. This
5739 is needed with MASM which uses the format label:: for this scope.
5740 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
5742 *) Change the ASN1 types so they are typedefs by default. Before
5743 almost all types were #define'd to ASN1_STRING which was causing
5744 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
5748 *) Change names of new functions to the new get1/get0 naming
5749 convention: After 'get1', the caller owns a reference count
5750 and has to call ..._free; 'get0' returns a pointer to some
5751 data structure without incrementing reference counters.
5752 (Some of the existing 'get' functions increment a reference
5753 counter, some don't.)
5754 Similarly, 'set1' and 'add1' functions increase reference
5755 counters or duplicate objects.
5758 *) Allow for the possibility of temp RSA key generation failure:
5759 the code used to assume it always worked and crashed on failure.
5762 *) Fix potential buffer overrun problem in BIO_printf().
5763 [Ulf Möller, using public domain code by Patrick Powell; problem
5764 pointed out by David Sacerdote <das33@cornell.edu>]
5766 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
5767 RAND_egd() and RAND_status(). In the command line application,
5768 the EGD socket can be specified like a seed file using RANDFILE
5772 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
5773 Some CAs (e.g. Verisign) distribute certificates in this form.
5776 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
5777 list to exclude them. This means that no special compilation option
5778 is needed to use anonymous DH: it just needs to be included in the
5782 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
5783 EVP_MD_type. The old functionality is available in a new macro called
5784 EVP_MD_md(). Change code that uses it and update docs.
5787 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
5788 where the 'void *' argument is replaced by a function pointer argument.
5789 Previously 'void *' was abused to point to functions, which works on
5790 many platforms, but is not correct. As these functions are usually
5791 called by macros defined in OpenSSL header files, most source code
5792 should work without changes.
5795 *) <openssl/opensslconf.h> (which is created by Configure) now contains
5796 sections with information on -D... compiler switches used for
5797 compiling the library so that applications can see them. To enable
5798 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
5799 must be defined. E.g.,
5800 #define OPENSSL_ALGORITHM_DEFINES
5801 #include <openssl/opensslconf.h>
5802 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
5803 [Richard Levitte, Ulf and Bodo Möller]
5805 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
5809 *) Change the 'other' type in certificate aux info to a STACK_OF
5810 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
5811 the required ASN1 format: arbitrary types determined by an OID.
5814 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
5815 argument to 'req'. This is not because the function is newer or
5816 better than others it just uses the work 'NEW' in the certificate
5817 request header lines. Some software needs this.
5820 *) Reorganise password command line arguments: now passwords can be
5821 obtained from various sources. Delete the PEM_cb function and make
5822 it the default behaviour: i.e. if the callback is NULL and the
5823 usrdata argument is not NULL interpret it as a null terminated pass
5824 phrase. If usrdata and the callback are NULL then the pass phrase
5825 is prompted for as usual.
5828 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
5829 the support is automatically enabled. The resulting binaries will
5830 autodetect the card and use it if present.
5831 [Ben Laurie and Compaq Inc.]
5833 *) Work around for Netscape hang bug. This sends certificate request
5834 and server done in one record. Since this is perfectly legal in the
5835 SSL/TLS protocol it isn't a "bug" option and is on by default. See
5836 the bugs/SSLv3 entry for more info.
5839 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
5842 *) Add -rand argument to smime and pkcs12 applications and read/write
5846 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
5849 *) Add command line password options to the remaining applications.
5852 *) Bug fix for BN_div_recp() for numerators with an even number of
5856 *) More tests in bntest.c, and changed test_bn output.
5859 *) ./config recognizes MacOS X now.
5862 *) Bug fix for BN_div() when the first words of num and divsor are
5863 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
5866 *) Add support for various broken PKCS#8 formats, and command line
5867 options to produce them.
5870 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
5871 get temporary BIGNUMs from a BN_CTX.
5874 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
5878 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
5879 include a #define from the old name to the new. The original intent
5880 was that statically linked binaries could for example just call
5881 SSLeay_add_all_ciphers() to just add ciphers to the table and not
5882 link with digests. This never worked becayse SSLeay_add_all_digests()
5883 and SSLeay_add_all_ciphers() were in the same source file so calling
5884 one would link with the other. They are now in separate source files.
5887 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
5890 *) Use a less unusual form of the Miller-Rabin primality test (it used
5891 a binary algorithm for exponentiation integrated into the Miller-Rabin
5892 loop, our standard modexp algorithms are faster).
5895 *) Support for the EBCDIC character set completed.
5896 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
5898 *) Source code cleanups: use const where appropriate, eliminate casts,
5899 use void * instead of char * in lhash.
5902 *) Bugfix: ssl3_send_server_key_exchange was not restartable
5903 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
5904 this the server could overwrite ephemeral keys that the client
5908 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
5909 using 50 iterations of the Rabin-Miller test.
5911 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
5912 iterations of the Rabin-Miller test as required by the appendix
5913 to FIPS PUB 186[-1]) instead of DSA_is_prime.
5914 As BN_is_prime_fasttest includes trial division, DSA parameter
5915 generation becomes much faster.
5917 This implies a change for the callback functions in DSA_is_prime
5918 and DSA_generate_parameters: The callback function is called once
5919 for each positive witness in the Rabin-Miller test, not just
5920 occasionally in the inner loop; and the parameters to the
5921 callback function now provide an iteration count for the outer
5922 loop rather than for the current invocation of the inner loop.
5923 DSA_generate_parameters additionally can call the callback
5924 function with an 'iteration count' of -1, meaning that a
5925 candidate has passed the trial division test (when q is generated
5926 from an application-provided seed, trial division is skipped).
5929 *) New function BN_is_prime_fasttest that optionally does trial
5930 division before starting the Rabin-Miller test and has
5931 an additional BN_CTX * argument (whereas BN_is_prime always
5932 has to allocate at least one BN_CTX).
5933 'callback(1, -1, cb_arg)' is called when a number has passed the
5934 trial division stage.
5937 *) Fix for bug in CRL encoding. The validity dates weren't being handled
5941 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
5944 *) New function BN_pseudo_rand().
5947 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
5948 bignum version of BN_from_montgomery() with the working code from
5949 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
5953 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
5954 made it impossible to use the same SSL_SESSION data structure in
5955 SSL2 clients in multiple threads.
5958 *) The return value of RAND_load_file() no longer counts bytes obtained
5959 by stat(). RAND_load_file(..., -1) is new and uses the complete file
5960 to seed the PRNG (previously an explicit byte count was required).
5961 [Ulf Möller, Bodo Möller]
5963 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
5964 used (char *) instead of (void *) and had casts all over the place.
5967 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
5970 *) Retain source code compatibility for BN_prime_checks macro:
5971 BN_is_prime(..., BN_prime_checks, ...) now uses
5972 BN_prime_checks_for_size to determine the appropriate number of
5973 Rabin-Miller iterations.
5976 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
5977 DH_CHECK_P_NOT_SAFE_PRIME.
5978 (Check if this is true? OpenPGP calls them "strong".)
5981 *) Merge the functionality of "dh" and "gendh" programs into a new program
5982 "dhparam". The old programs are retained for now but will handle DH keys
5983 (instead of parameters) in future.
5986 *) Make the ciphers, s_server and s_client programs check the return values
5987 when a new cipher list is set.
5990 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
5991 ciphers. Before when the 56bit ciphers were enabled the sorting was
5994 The syntax for the cipher sorting has been extended to support sorting by
5995 cipher-strength (using the strength_bits hard coded in the tables).
5996 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
5998 Fix a bug in the cipher-command parser: when supplying a cipher command
5999 string with an "undefined" symbol (neither command nor alphanumeric
6000 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
6001 an error is flagged.
6003 Due to the strength-sorting extension, the code of the
6004 ssl_create_cipher_list() function was completely rearranged. I hope that
6005 the readability was also increased :-)
6006 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6008 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
6009 for the first serial number and places 2 in the serial number file. This
6010 avoids problems when the root CA is created with serial number zero and
6011 the first user certificate has the same issuer name and serial number
6015 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
6016 the new code. Add documentation for this stuff.
6019 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
6020 X509_*() to X509at_*() on the grounds that they don't handle X509
6021 structures and behave in an analagous way to the X509v3 functions:
6022 they shouldn't be called directly but wrapper functions should be used
6025 So we also now have some wrapper functions that call the X509at functions
6026 when passed certificate requests. (TO DO: similar things can be done with
6027 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
6028 things. Some of these need some d2i or i2d and print functionality
6029 because they handle more complex structures.)
6032 *) Add missing #ifndefs that caused missing symbols when building libssl
6033 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
6034 NO_RSA in ssl/s2*.c.
6035 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
6037 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
6038 has a return value which indicates the quality of the random data
6039 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
6040 error queue. New function RAND_pseudo_bytes() generates output that is
6041 guaranteed to be unique but not unpredictable. RAND_add is like
6042 RAND_seed, but takes an extra argument for an entropy estimate
6043 (RAND_seed always assumes full entropy).
6046 *) Do more iterations of Rabin-Miller probable prime test (specifically,
6047 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
6048 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
6049 in crypto/bn/bn_prime.c for the complete table). This guarantees a
6050 false-positive rate of at most 2^-80 for random input.
6053 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
6056 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
6057 in the 0.9.5 release), this returns the chain
6058 from an X509_CTX structure with a dup of the stack and all
6059 the X509 reference counts upped: so the stack will exist
6060 after X509_CTX_cleanup() has been called. Modify pkcs12.c
6063 Also make SSL_SESSION_print() print out the verify return
6067 *) Add manpage for the pkcs12 command. Also change the default
6068 behaviour so MAC iteration counts are used unless the new
6069 -nomaciter option is used. This improves file security and
6070 only older versions of MSIE (4.0 for example) need it.
6073 *) Honor the no-xxx Configure options when creating .DEF files.
6076 *) Add PKCS#10 attributes to field table: challengePassword,
6077 unstructuredName and unstructuredAddress. These are taken from
6078 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
6079 international characters are used.
6081 More changes to X509_ATTRIBUTE code: allow the setting of types
6082 based on strings. Remove the 'loc' parameter when adding
6083 attributes because these will be a SET OF encoding which is sorted
6087 *) Initial changes to the 'req' utility to allow request generation
6088 automation. This will allow an application to just generate a template
6089 file containing all the field values and have req construct the
6092 Initial support for X509_ATTRIBUTE handling. Stacks of these are
6093 used all over the place including certificate requests and PKCS#7
6094 structures. They are currently handled manually where necessary with
6095 some primitive wrappers for PKCS#7. The new functions behave in a
6096 manner analogous to the X509 extension functions: they allow
6097 attributes to be looked up by NID and added.
6099 Later something similar to the X509V3 code would be desirable to
6100 automatically handle the encoding, decoding and printing of the
6101 more complex types. The string types like challengePassword can
6102 be handled by the string table functions.
6104 Also modified the multi byte string table handling. Now there is
6105 a 'global mask' which masks out certain types. The table itself
6106 can use the flag STABLE_NO_MASK to ignore the mask setting: this
6107 is useful when for example there is only one permissible type
6108 (as in countryName) and using the mask might result in no valid
6112 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
6113 SSL_get_peer_finished to allow applications to obtain the latest
6114 Finished messages sent to the peer or expected from the peer,
6115 respectively. (SSL_get_peer_finished is usually the Finished message
6116 actually received from the peer, otherwise the protocol will be aborted.)
6118 As the Finished message are message digests of the complete handshake
6119 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
6120 be used for external authentication procedures when the authentication
6121 provided by SSL/TLS is not desired or is not enough.
6124 *) Enhanced support for Alpha Linux is added. Now ./config checks if
6125 the host supports BWX extension and if Compaq C is present on the
6126 $PATH. Just exploiting of the BWX extension results in 20-30%
6127 performance kick for some algorithms, e.g. DES and RC4 to mention
6128 a couple. Compaq C in turn generates ~20% faster code for MD5 and
6132 *) Add support for MS "fast SGC". This is arguably a violation of the
6133 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
6134 weak crypto and after checking the certificate is SGC a second one
6135 with strong crypto. MS SGC stops the first handshake after receiving
6136 the server certificate message and sends a second client hello. Since
6137 a server will typically do all the time consuming operations before
6138 expecting any further messages from the client (server key exchange
6139 is the most expensive) there is little difference between the two.
6141 To get OpenSSL to support MS SGC we have to permit a second client
6142 hello message after we have sent server done. In addition we have to
6143 reset the MAC if we do get this second client hello.
6146 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
6147 if a DER encoded private key is RSA or DSA traditional format. Changed
6148 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
6149 format DER encoded private key. Newer code should use PKCS#8 format which
6150 has the key type encoded in the ASN1 structure. Added DER private key
6151 support to pkcs8 application.
6154 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
6155 ciphersuites has been selected (as required by the SSL 3/TLS 1
6156 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
6157 is set, we interpret this as a request to violate the specification
6158 (the worst that can happen is a handshake failure, and 'correct'
6159 behaviour would result in a handshake failure anyway).
6162 *) In SSL_CTX_add_session, take into account that there might be multiple
6163 SSL_SESSION structures with the same session ID (e.g. when two threads
6164 concurrently obtain them from an external cache).
6165 The internal cache can handle only one SSL_SESSION with a given ID,
6166 so if there's a conflict, we now throw out the old one to achieve
6170 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
6171 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
6172 some routines that use cipher OIDs: some ciphers do not have OIDs
6173 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
6177 *) Simplify the trust setting structure and code. Now we just have
6178 two sequences of OIDs for trusted and rejected settings. These will
6179 typically have values the same as the extended key usage extension
6180 and any application specific purposes.
6182 The trust checking code now has a default behaviour: it will just
6183 check for an object with the same NID as the passed id. Functions can
6184 be provided to override either the default behaviour or the behaviour
6185 for a given id. SSL client, server and email already have functions
6186 in place for compatibility: they check the NID and also return "trusted"
6187 if the certificate is self signed.
6190 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
6191 traditional format into an EVP_PKEY structure.
6194 *) Add a password callback function PEM_cb() which either prompts for
6195 a password if usr_data is NULL or otherwise assumes it is a null
6196 terminated password. Allow passwords to be passed on command line
6197 environment or config files in a few more utilities.
6200 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
6201 keys. Add some short names for PKCS#8 PBE algorithms and allow them
6202 to be specified on the command line for the pkcs8 and pkcs12 utilities.
6203 Update documentation.
6206 *) Support for ASN1 "NULL" type. This could be handled before by using
6207 ASN1_TYPE but there wasn't any function that would try to read a NULL
6208 and produce an error if it couldn't. For compatibility we also have
6209 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
6210 don't allocate anything because they don't need to.
6213 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
6215 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
6217 *) Rebuild of the memory allocation routines used by OpenSSL code and
6218 possibly others as well. The purpose is to make an interface that
6219 provide hooks so anyone can build a separate set of allocation and
6220 deallocation routines to be used by OpenSSL, for example memory
6221 pool implementations, or something else, which was previously hard
6222 since Malloc(), Realloc() and Free() were defined as macros having
6223 the values malloc, realloc and free, respectively (except for Win32
6224 compilations). The same is provided for memory debugging code.
6225 OpenSSL already comes with functionality to find memory leaks, but
6226 this gives people a chance to debug other memory problems.
6228 With these changes, a new set of functions and macros have appeared:
6230 CRYPTO_set_mem_debug_functions() [F]
6231 CRYPTO_get_mem_debug_functions() [F]
6232 CRYPTO_dbg_set_options() [F]
6233 CRYPTO_dbg_get_options() [F]
6234 CRYPTO_malloc_debug_init() [M]
6236 The memory debug functions are NULL by default, unless the library
6237 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
6238 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
6239 gives the standard debugging functions that come with OpenSSL) or
6240 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
6241 provided by the library user) must be used. When the standard
6242 debugging functions are used, CRYPTO_dbg_set_options can be used to
6243 request additional information:
6244 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
6245 the CRYPTO_MDEBUG_xxx macro when compiling the library.
6247 Also, things like CRYPTO_set_mem_functions will always give the
6248 expected result (the new set of functions is used for allocation
6249 and deallocation) at all times, regardless of platform and compiler
6252 To finish it up, some functions that were never use in any other
6253 way than through macros have a new API and new semantic:
6256 CRYPTO_dbg_realloc()
6259 All macros of value have retained their old syntax.
6260 [Richard Levitte and Bodo Moeller]
6262 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
6263 ordering of SMIMECapabilities wasn't in "strength order" and there
6264 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
6268 *) Some ASN1 types with illegal zero length encoding (INTEGER,
6269 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
6270 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
6272 *) Merge in my S/MIME library for OpenSSL. This provides a simple
6273 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
6274 functionality to handle multipart/signed properly) and a utility
6275 called 'smime' to call all this stuff. This is based on code I
6276 originally wrote for Celo who have kindly allowed it to be
6277 included in OpenSSL.
6280 *) Add variants des_set_key_checked and des_set_key_unchecked of
6281 des_set_key (aka des_key_sched). Global variable des_check_key
6282 decides which of these is called by des_set_key; this way
6283 des_check_key behaves as it always did, but applications and
6284 the library itself, which was buggy for des_check_key == 1,
6285 have a cleaner way to pick the version they need.
6288 *) New function PKCS12_newpass() which changes the password of a
6292 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
6293 dynamic mix. In both cases the ids can be used as an index into the
6294 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
6295 functions so they accept a list of the field values and the
6296 application doesn't need to directly manipulate the X509_TRUST
6300 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
6304 *) Modify the way the V3 extension code looks up extensions. This now
6305 works in a similar way to the object code: we have some "standard"
6306 extensions in a static table which is searched with OBJ_bsearch()
6307 and the application can add dynamic ones if needed. The file
6308 crypto/x509v3/ext_dat.h now has the info: this file needs to be
6309 updated whenever a new extension is added to the core code and kept
6310 in ext_nid order. There is a simple program 'tabtest.c' which checks
6311 this. New extensions are not added too often so this file can readily
6312 be maintained manually.
6314 There are two big advantages in doing things this way. The extensions
6315 can be looked up immediately and no longer need to be "added" using
6316 X509V3_add_standard_extensions(): this function now does nothing.
6317 [Side note: I get *lots* of email saying the extension code doesn't
6318 work because people forget to call this function]
6319 Also no dynamic allocation is done unless new extensions are added:
6320 so if we don't add custom extensions there is no need to call
6321 X509V3_EXT_cleanup().
6324 *) Modify enc utility's salting as follows: make salting the default. Add a
6325 magic header, so unsalted files fail gracefully instead of just decrypting
6326 to garbage. This is because not salting is a big security hole, so people
6327 should be discouraged from doing it.
6330 *) Fixes and enhancements to the 'x509' utility. It allowed a message
6331 digest to be passed on the command line but it only used this
6332 parameter when signing a certificate. Modified so all relevant
6333 operations are affected by the digest parameter including the
6334 -fingerprint and -x509toreq options. Also -x509toreq choked if a
6335 DSA key was used because it didn't fix the digest.
6338 *) Initial certificate chain verify code. Currently tests the untrusted
6339 certificates for consistency with the verify purpose (which is set
6340 when the X509_STORE_CTX structure is set up) and checks the pathlength.
6342 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
6343 this is because it will reject chains with invalid extensions whereas
6344 every previous version of OpenSSL and SSLeay made no checks at all.
6346 Trust code: checks the root CA for the relevant trust settings. Trust
6347 settings have an initial value consistent with the verify purpose: e.g.
6348 if the verify purpose is for SSL client use it expects the CA to be
6349 trusted for SSL client use. However the default value can be changed to
6350 permit custom trust settings: one example of this would be to only trust
6351 certificates from a specific "secure" set of CAs.
6353 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
6354 which should be used for version portability: especially since the
6355 verify structure is likely to change more often now.
6357 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
6358 to set them. If not set then assume SSL clients will verify SSL servers
6361 Two new options to the verify program: -untrusted allows a set of
6362 untrusted certificates to be passed in and -purpose which sets the
6363 intended purpose of the certificate. If a purpose is set then the
6364 new chain verify code is used to check extension consistency.
6367 *) Support for the authority information access extension.
6370 *) Modify RSA and DSA PEM read routines to transparently handle
6371 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
6372 public keys in a format compatible with certificate
6373 SubjectPublicKeyInfo structures. Unfortunately there were already
6374 functions called *_PublicKey_* which used various odd formats so
6375 these are retained for compatibility: however the DSA variants were
6376 never in a public release so they have been deleted. Changed dsa/rsa
6377 utilities to handle the new format: note no releases ever handled public
6378 keys so we should be OK.
6380 The primary motivation for this change is to avoid the same fiasco
6381 that dogs private keys: there are several incompatible private key
6382 formats some of which are standard and some OpenSSL specific and
6383 require various evil hacks to allow partial transparent handling and
6384 even then it doesn't work with DER formats. Given the option anything
6385 other than PKCS#8 should be dumped: but the other formats have to
6386 stay in the name of compatibility.
6388 With public keys and the benefit of hindsight one standard format
6389 is used which works with EVP_PKEY, RSA or DSA structures: though
6390 it clearly returns an error if you try to read the wrong kind of key.
6392 Added a -pubkey option to the 'x509' utility to output the public key.
6393 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
6394 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
6395 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
6396 that do the same as the EVP_PKEY_assign_*() except they up the
6397 reference count of the added key (they don't "swallow" the
6401 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
6402 CRLs would fail if the file contained no certificates or no CRLs:
6403 added a new function to read in both types and return the number
6404 read: this means that if none are read it will be an error. The
6405 DER versions of the certificate and CRL reader would always fail
6406 because it isn't possible to mix certificates and CRLs in DER format
6407 without choking one or the other routine. Changed this to just read
6408 a certificate: this is the best we can do. Also modified the code
6409 in apps/verify.c to take notice of return codes: it was previously
6410 attempting to read in certificates from NULL pointers and ignoring
6411 any errors: this is one reason why the cert and CRL reader seemed
6412 to work. It doesn't check return codes from the default certificate
6413 routines: these may well fail if the certificates aren't installed.
6416 *) Code to support otherName option in GeneralName.
6419 *) First update to verify code. Change the verify utility
6420 so it warns if it is passed a self signed certificate:
6421 for consistency with the normal behaviour. X509_verify
6422 has been modified to it will now verify a self signed
6423 certificate if *exactly* the same certificate appears
6424 in the store: it was previously impossible to trust a
6425 single self signed certificate. This means that:
6426 openssl verify ss.pem
6427 now gives a warning about a self signed certificate but
6428 openssl verify -CAfile ss.pem ss.pem
6432 *) For servers, store verify_result in SSL_SESSION data structure
6433 (and add it to external session representation).
6434 This is needed when client certificate verifications fails,
6435 but an application-provided verification callback (set by
6436 SSL_CTX_set_cert_verify_callback) allows accepting the session
6437 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
6438 but returns 1): When the session is reused, we have to set
6439 ssl->verify_result to the appropriate error code to avoid
6441 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
6443 *) Fix a bug in the new PKCS#7 code: it didn't consider the
6444 case in PKCS7_dataInit() where the signed PKCS7 structure
6445 didn't contain any existing data because it was being created.
6446 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
6448 *) Add a salt to the key derivation routines in enc.c. This
6449 forms the first 8 bytes of the encrypted file. Also add a
6450 -S option to allow a salt to be input on the command line.
6453 *) New function X509_cmp(). Oddly enough there wasn't a function
6454 to compare two certificates. We do this by working out the SHA1
6455 hash and comparing that. X509_cmp() will be needed by the trust
6459 *) SSL_get1_session() is like SSL_get_session(), but increments
6460 the reference count in the SSL_SESSION returned.
6461 [Geoff Thorpe <geoff@eu.c2.net>]
6463 *) Fix for 'req': it was adding a null to request attributes.
6464 Also change the X509_LOOKUP and X509_INFO code to handle
6465 certificate auxiliary information.
6468 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
6472 *) Add the possibility to add extra information to the memory leak
6473 detecting output, to form tracebacks, showing from where each
6474 allocation was originated: CRYPTO_push_info("constant string") adds
6475 the string plus current file name and line number to a per-thread
6476 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
6477 is like calling CYRPTO_pop_info() until the stack is empty.
6478 Also updated memory leak detection code to be multi-thread-safe.
6481 *) Add options -text and -noout to pkcs7 utility and delete the
6482 encryption options which never did anything. Update docs.
6485 *) Add options to some of the utilities to allow the pass phrase
6486 to be included on either the command line (not recommended on
6487 OSes like Unix) or read from the environment. Update the
6488 manpages and fix a few bugs.
6491 *) Add a few manpages for some of the openssl commands.
6494 *) Fix the -revoke option in ca. It was freeing up memory twice,
6495 leaking and not finding already revoked certificates.
6498 *) Extensive changes to support certificate auxiliary information.
6499 This involves the use of X509_CERT_AUX structure and X509_AUX
6500 functions. An X509_AUX function such as PEM_read_X509_AUX()
6501 can still read in a certificate file in the usual way but it
6502 will also read in any additional "auxiliary information". By
6503 doing things this way a fair degree of compatibility can be
6504 retained: existing certificates can have this information added
6505 using the new 'x509' options.
6507 Current auxiliary information includes an "alias" and some trust
6508 settings. The trust settings will ultimately be used in enhanced
6509 certificate chain verification routines: currently a certificate
6510 can only be trusted if it is self signed and then it is trusted
6514 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
6515 The problem was that one of the replacement routines had not been working
6516 since SSLeay releases. For now the offending routine has been replaced
6517 with non-optimised assembler. Even so, this now gives around 95%
6518 performance improvement for 1024 bit RSA signs.
6521 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
6522 handling. Most clients have the effective key size in bits equal to
6523 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
6524 A few however don't do this and instead use the size of the decrypted key
6525 to determine the RC2 key length and the AlgorithmIdentifier to determine
6526 the effective key length. In this case the effective key length can still
6527 be 40 bits but the key length can be 168 bits for example. This is fixed
6528 by manually forcing an RC2 key into the EVP_PKEY structure because the
6529 EVP code can't currently handle unusual RC2 key sizes: it always assumes
6530 the key length and effective key length are equal.
6533 *) Add a bunch of functions that should simplify the creation of
6534 X509_NAME structures. Now you should be able to do:
6535 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
6536 and have it automatically work out the correct field type and fill in
6537 the structures. The more adventurous can try:
6538 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
6539 and it will (hopefully) work out the correct multibyte encoding.
6542 *) Change the 'req' utility to use the new field handling and multibyte
6543 copy routines. Before the DN field creation was handled in an ad hoc
6544 way in req, ca, and x509 which was rather broken and didn't support
6545 BMPStrings or UTF8Strings. Since some software doesn't implement
6546 BMPStrings or UTF8Strings yet, they can be enabled using the config file
6547 using the dirstring_type option. See the new comment in the default
6548 openssl.cnf for more info.
6551 *) Make crypto/rand/md_rand.c more robust:
6552 - Assure unique random numbers after fork().
6553 - Make sure that concurrent threads access the global counter and
6554 md serializably so that we never lose entropy in them
6555 or use exactly the same state in multiple threads.
6556 Access to the large state is not always serializable because
6557 the additional locking could be a performance killer, and
6558 md should be large enough anyway.
6561 *) New file apps/app_rand.c with commonly needed functionality
6562 for handling the random seed file.
6564 Use the random seed file in some applications that previously did not:
6566 dsaparam -genkey (which also ignored its '-rand' option),
6569 x509 (when signing).
6570 Except on systems with /dev/urandom, it is crucial to have a random
6571 seed file at least for key creation, DSA signing, and for DH exchanges;
6572 for RSA signatures we could do without one.
6574 gendh and gendsa (unlike genrsa) used to read only the first byte
6575 of each file listed in the '-rand' option. The function as previously
6576 found in genrsa is now in app_rand.c and is used by all programs
6577 that support '-rand'.
6580 *) In RAND_write_file, use mode 0600 for creating files;
6581 don't just chmod when it may be too late.
6584 *) Report an error from X509_STORE_load_locations
6585 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
6588 *) New function ASN1_mbstring_copy() this copies a string in either
6589 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
6590 into an ASN1_STRING type. A mask of permissible types is passed
6591 and it chooses the "minimal" type to use or an error if not type
6595 *) Add function equivalents to the various macros in asn1.h. The old
6596 macros are retained with an M_ prefix. Code inside the library can
6597 use the M_ macros. External code (including the openssl utility)
6598 should *NOT* in order to be "shared library friendly".
6601 *) Add various functions that can check a certificate's extensions
6602 to see if it usable for various purposes such as SSL client,
6603 server or S/MIME and CAs of these types. This is currently
6604 VERY EXPERIMENTAL but will ultimately be used for certificate chain
6605 verification. Also added a -purpose flag to x509 utility to
6606 print out all the purposes.
6609 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
6613 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
6614 for, obtain and decode and extension and obtain its critical flag.
6615 This allows all the necessary extension code to be handled in a
6616 single function call.
6619 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
6620 platforms. See crypto/rc4/rc4_enc.c for further details.
6623 *) New -noout option to asn1parse. This causes no output to be produced
6624 its main use is when combined with -strparse and -out to extract data
6625 from a file (which may not be in ASN.1 format).
6628 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
6629 when producing the local key id.
6630 [Richard Levitte <levitte@stacken.kth.se>]
6632 *) New option -dhparam in s_server. This allows a DH parameter file to be
6633 stated explicitly. If it is not stated then it tries the first server
6634 certificate file. The previous behaviour hard coded the filename
6638 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
6639 a public key to be input or output. For example:
6640 openssl rsa -in key.pem -pubout -out pubkey.pem
6641 Also added necessary DSA public key functions to handle this.
6644 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
6645 in the message. This was handled by allowing
6646 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
6647 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
6649 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
6650 to the end of the strings whereas this didn't. This would cause problems
6651 if strings read with d2i_ASN1_bytes() were later modified.
6652 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
6654 *) Fix for base64 decode bug. When a base64 bio reads only one line of
6655 data and it contains EOF it will end up returning an error. This is
6656 caused by input 46 bytes long. The cause is due to the way base64
6657 BIOs find the start of base64 encoded data. They do this by trying a
6658 trial decode on each line until they find one that works. When they
6659 do a flag is set and it starts again knowing it can pass all the
6660 data directly through the decoder. Unfortunately it doesn't reset
6661 the context it uses. This means that if EOF is reached an attempt
6662 is made to pass two EOFs through the context and this causes the
6663 resulting error. This can also cause other problems as well. As is
6664 usual with these problems it takes *ages* to find and the fix is
6665 trivial: move one line.
6666 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
6668 *) Ugly workaround to get s_client and s_server working under Windows. The
6669 old code wouldn't work because it needed to select() on sockets and the
6670 tty (for keypresses and to see if data could be written). Win32 only
6671 supports select() on sockets so we select() with a 1s timeout on the
6672 sockets and then see if any characters are waiting to be read, if none
6673 are present then we retry, we also assume we can always write data to
6674 the tty. This isn't nice because the code then blocks until we've
6675 received a complete line of data and it is effectively polling the
6676 keyboard at 1s intervals: however it's quite a bit better than not
6677 working at all :-) A dedicated Windows application might handle this
6678 with an event loop for example.
6681 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
6682 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
6683 will be called when RSA_sign() and RSA_verify() are used. This is useful
6684 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
6685 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
6686 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
6687 This necessitated the support of an extra signature type NID_md5_sha1
6688 for SSL signatures and modifications to the SSL library to use it instead
6689 of calling RSA_public_decrypt() and RSA_private_encrypt().
6692 *) Add new -verify -CAfile and -CApath options to the crl program, these
6693 will lookup a CRL issuers certificate and verify the signature in a
6694 similar way to the verify program. Tidy up the crl program so it
6695 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
6696 less strict. It will now permit CRL extensions even if it is not
6697 a V2 CRL: this will allow it to tolerate some broken CRLs.
6700 *) Initialize all non-automatic variables each time one of the openssl
6701 sub-programs is started (this is necessary as they may be started
6702 multiple times from the "OpenSSL>" prompt).
6703 [Lennart Bang, Bodo Moeller]
6705 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
6706 removing all other RSA functionality (this is what NO_RSA does). This
6707 is so (for example) those in the US can disable those operations covered
6708 by the RSA patent while allowing storage and parsing of RSA keys and RSA
6712 *) Non-copying interface to BIO pairs.
6713 (still largely untested)
6716 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
6717 ASCII string. This was handled independently in various places before.
6720 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
6721 UTF8 strings a character at a time.
6724 *) Use client_version from client hello to select the protocol
6725 (s23_srvr.c) and for RSA client key exchange verification
6726 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
6729 *) Add various utility functions to handle SPKACs, these were previously
6730 handled by poking round in the structure internals. Added new function
6731 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
6732 print, verify and generate SPKACs. Based on an original idea from
6733 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
6736 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
6739 *) Allow the config file extension section to be overwritten on the
6740 command line. Based on an original idea from Massimiliano Pala
6741 <madwolf@comune.modena.it>. The new option is called -extensions
6742 and can be applied to ca, req and x509. Also -reqexts to override
6743 the request extensions in req and -crlexts to override the crl extensions
6747 *) Add new feature to the SPKAC handling in ca. Now you can include
6748 the same field multiple times by preceding it by "XXXX." for example:
6751 this is the same syntax as used in the req config file.
6754 *) Allow certificate extensions to be added to certificate requests. These
6755 are specified in a 'req_extensions' option of the req section of the
6756 config file. They can be printed out with the -text option to req but
6757 are otherwise ignored at present.
6760 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
6761 data read consists of only the final block it would not decrypted because
6762 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
6763 A misplaced 'break' also meant the decrypted final block might not be
6764 copied until the next read.
6767 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
6768 a few extra parameters to the DH structure: these will be useful if
6769 for example we want the value of 'q' or implement X9.42 DH.
6772 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
6773 provides hooks that allow the default DSA functions or functions on a
6774 "per key" basis to be replaced. This allows hardware acceleration and
6775 hardware key storage to be handled without major modification to the
6776 library. Also added low level modexp hooks and CRYPTO_EX structure and
6777 associated functions.
6780 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
6781 as "read only": it can't be written to and the buffer it points to will
6782 not be freed. Reading from a read only BIO is much more efficient than
6783 a normal memory BIO. This was added because there are several times when
6784 an area of memory needs to be read from a BIO. The previous method was
6785 to create a memory BIO and write the data to it, this results in two
6786 copies of the data and an O(n^2) reading algorithm. There is a new
6787 function BIO_new_mem_buf() which creates a read only memory BIO from
6788 an area of memory. Also modified the PKCS#7 routines to use read only
6792 *) Bugfix: ssl23_get_client_hello did not work properly when called in
6793 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
6794 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
6795 but a retry condition occured while trying to read the rest.
6798 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
6799 NID_pkcs7_encrypted by default: this was wrong since this should almost
6800 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
6801 the encrypted data type: this is a more sensible place to put it and it
6802 allows the PKCS#12 code to be tidied up that duplicated this
6806 *) Changed obj_dat.pl script so it takes its input and output files on
6807 the command line. This should avoid shell escape redirection problems
6811 *) Initial support for certificate extension requests, these are included
6812 in things like Xenroll certificate requests. Included functions to allow
6813 extensions to be obtained and added.
6816 *) -crlf option to s_client and s_server for sending newlines as
6817 CRLF (as required by many protocols).
6820 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
6822 *) Install libRSAglue.a when OpenSSL is built with RSAref.
6823 [Ralf S. Engelschall]
6825 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
6826 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
6828 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
6832 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
6833 DH parameters/keys (q is lost during that conversion, but the resulting
6834 DH parameters contain its length).
6836 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
6837 much faster than DH_generate_parameters (which creates parameters
6838 where p = 2*q + 1), and also the smaller q makes DH computations
6839 much more efficient (160-bit exponentiation instead of 1024-bit
6840 exponentiation); so this provides a convenient way to support DHE
6841 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
6842 utter importance to use
6843 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6845 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6846 when such DH parameters are used, because otherwise small subgroup
6847 attacks may become possible!
6850 *) Avoid memory leak in i2d_DHparams.
6853 *) Allow the -k option to be used more than once in the enc program:
6854 this allows the same encrypted message to be read by multiple recipients.
6857 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
6858 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
6859 it will always use the numerical form of the OID, even if it has a short
6863 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
6864 method only got called if p,q,dmp1,dmq1,iqmp components were present,
6865 otherwise bn_mod_exp was called. In the case of hardware keys for example
6866 no private key components need be present and it might store extra data
6867 in the RSA structure, which cannot be accessed from bn_mod_exp.
6868 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
6869 private key operations.
6872 *) Added support for SPARC Linux.
6875 *) pem_password_cb function type incompatibly changed from
6876 typedef int pem_password_cb(char *buf, int size, int rwflag);
6878 ....(char *buf, int size, int rwflag, void *userdata);
6879 so that applications can pass data to their callbacks:
6880 The PEM[_ASN1]_{read,write}... functions and macros now take an
6881 additional void * argument, which is just handed through whenever
6882 the password callback is called.
6883 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
6885 New function SSL_CTX_set_default_passwd_cb_userdata.
6887 Compatibility note: As many C implementations push function arguments
6888 onto the stack in reverse order, the new library version is likely to
6889 interoperate with programs that have been compiled with the old
6890 pem_password_cb definition (PEM_whatever takes some data that
6891 happens to be on the stack as its last argument, and the callback
6892 just ignores this garbage); but there is no guarantee whatsoever that
6895 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
6896 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
6897 problems not only on Windows, but also on some Unix platforms.
6898 To avoid problematic command lines, these definitions are now in an
6899 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
6900 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
6903 *) MIPS III/IV assembler module is reimplemented.
6906 *) More DES library cleanups: remove references to srand/rand and
6907 delete an unused file.
6910 *) Add support for the the free Netwide assembler (NASM) under Win32,
6911 since not many people have MASM (ml) and it can be hard to obtain.
6912 This is currently experimental but it seems to work OK and pass all
6913 the tests. Check out INSTALL.W32 for info.
6916 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
6917 without temporary keys kept an extra copy of the server key,
6918 and connections with temporary keys did not free everything in case
6922 *) New function RSA_check_key and new openssl rsa option -check
6923 for verifying the consistency of RSA keys.
6924 [Ulf Moeller, Bodo Moeller]
6926 *) Various changes to make Win32 compile work:
6927 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
6928 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
6929 comparison" warnings.
6930 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
6933 *) Add a debugging option to PKCS#5 v2 key generation function: when
6934 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
6935 derived keys are printed to stderr.
6938 *) Copy the flags in ASN1_STRING_dup().
6939 [Roman E. Pavlov <pre@mo.msk.ru>]
6941 *) The x509 application mishandled signing requests containing DSA
6942 keys when the signing key was also DSA and the parameters didn't match.
6944 It was supposed to omit the parameters when they matched the signing key:
6945 the verifying software was then supposed to automatically use the CA's
6946 parameters if they were absent from the end user certificate.
6948 Omitting parameters is no longer recommended. The test was also
6949 the wrong way round! This was probably due to unusual behaviour in
6950 EVP_cmp_parameters() which returns 1 if the parameters match.
6951 This meant that parameters were omitted when they *didn't* match and
6952 the certificate was useless. Certificates signed with 'ca' didn't have
6954 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
6956 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
6957 The interface is as follows:
6958 Applications can use
6959 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
6960 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
6961 "off" is now the default.
6962 The library internally uses
6963 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
6964 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
6965 to disable memory-checking temporarily.
6967 Some inconsistent states that previously were possible (and were
6968 even the default) are now avoided.
6970 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
6971 with each memory chunk allocated; this is occasionally more helpful
6972 than just having a counter.
6974 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
6976 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
6980 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
6981 which largely parallels "options", but is for changing API behaviour,
6982 whereas "options" are about protocol behaviour.
6983 Initial "mode" flags are:
6985 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
6986 a single record has been written.
6987 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
6988 retries use the same buffer location.
6989 (But all of the contents must be
6993 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
6996 *) Fix problems with no-hmac etc.
6997 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
6999 *) New functions RSA_get_default_method(), RSA_set_method() and
7000 RSA_get_method(). These allows replacement of RSA_METHODs without having
7001 to mess around with the internals of an RSA structure.
7004 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
7005 Also really enable memory leak checks in openssl.c and in some
7007 [Chad C. Mulligan, Bodo Moeller]
7009 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
7010 up the length of negative integers. This has now been simplified to just
7011 store the length when it is first determined and use it later, rather
7012 than trying to keep track of where data is copied and updating it to
7014 [Steve Henson, reported by Brien Wheeler
7015 <bwheeler@authentica-security.com>]
7017 *) Add a new function PKCS7_signatureVerify. This allows the verification
7018 of a PKCS#7 signature but with the signing certificate passed to the
7019 function itself. This contrasts with PKCS7_dataVerify which assumes the
7020 certificate is present in the PKCS#7 structure. This isn't always the
7021 case: certificates can be omitted from a PKCS#7 structure and be
7022 distributed by "out of band" means (such as a certificate database).
7025 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
7026 function prototypes in pem.h, also change util/mkdef.pl to add the
7027 necessary function names.
7030 *) mk1mf.pl (used by Windows builds) did not properly read the
7031 options set by Configure in the top level Makefile, and Configure
7032 was not even able to write more than one option correctly.
7033 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
7036 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
7037 file to be loaded from a BIO or FILE pointer. The BIO version will
7038 for example allow memory BIOs to contain config info.
7041 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
7042 Whoever hopes to achieve shared-library compatibility across versions
7043 must use this, not the compile-time macro.
7044 (Exercise 0.9.4: Which is the minimum library version required by
7046 Note: All this applies only to multi-threaded programs, others don't
7050 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
7051 through a BIO pair triggered the default case, i.e.
7052 SSLerr(...,SSL_R_UNKNOWN_STATE).
7055 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
7056 can use the SSL library even if none of the specific BIOs is
7060 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
7061 for the encoded length.
7062 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
7064 *) Add initial documentation of the X509V3 functions.
7067 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
7068 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
7069 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
7070 secure PKCS#8 private key format with a high iteration count.
7073 *) Fix determination of Perl interpreter: A perl or perl5
7074 _directory_ in $PATH was also accepted as the interpreter.
7075 [Ralf S. Engelschall]
7077 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
7078 wrong with it but it was very old and did things like calling
7079 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
7083 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
7084 to use the new extension code.
7087 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
7088 with macros. This should make it easier to change their form, add extra
7089 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
7093 *) Add to configuration table a new entry that can specify an alternative
7094 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
7095 according to Mark Crispin <MRC@Panda.COM>.
7099 *) DES CBC did not update the IV. Weird.
7102 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
7103 Changing the behaviour of the former might break existing programs --
7104 where IV updating is needed, des_ncbc_encrypt can be used.
7107 *) When bntest is run from "make test" it drives bc to check its
7108 calculations, as well as internally checking them. If an internal check
7109 fails, it needs to cause bc to give a non-zero result or make test carries
7110 on without noticing the failure. Fixed.
7113 *) DES library cleanups.
7116 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
7117 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
7118 ciphers. NOTE: although the key derivation function has been verified
7119 against some published test vectors it has not been extensively tested
7120 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
7124 *) Instead of "mkdir -p", which is not fully portable, use new
7125 Perl script "util/mkdir-p.pl".
7128 *) Rewrite the way password based encryption (PBE) is handled. It used to
7129 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
7130 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
7131 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
7132 the 'parameter' field of the AlgorithmIdentifier is passed to the
7133 underlying key generation function so it must do its own ASN1 parsing.
7134 This has also changed the EVP_PBE_CipherInit() function which now has a
7135 'parameter' argument instead of literal salt and iteration count values
7136 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
7139 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
7140 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
7141 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
7142 KEY" because this clashed with PKCS#8 unencrypted string. Since this
7143 value was just used as a "magic string" and not used directly its
7144 value doesn't matter.
7147 *) Introduce some semblance of const correctness to BN. Shame C doesn't
7151 *) "linux-sparc64" configuration (ultrapenguin).
7152 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
7153 "linux-sparc" configuration.
7154 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
7156 *) config now generates no-xxx options for missing ciphers.
7159 *) Support the EBCDIC character set (work in progress).
7160 File ebcdic.c not yet included because it has a different license.
7161 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7163 *) Support BS2000/OSD-POSIX.
7164 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7166 *) Make callbacks for key generation use void * instead of char *.
7169 *) Make S/MIME samples compile (not yet tested).
7172 *) Additional typesafe stacks.
7175 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
7179 Changes between 0.9.3 and 0.9.3a [29 May 1999]
7181 *) New configuration variant "sco5-gcc".
7183 *) Updated some demos.
7184 [Sean O Riordain, Wade Scholine]
7186 *) Add missing BIO_free at exit of pkcs12 application.
7189 *) Fix memory leak in conf.c.
7192 *) Updates for Win32 to assembler version of MD5.
7195 *) Set #! path to perl in apps/der_chop to where we found it
7196 instead of using a fixed path.
7199 *) SHA library changes for irix64-mips4-cc.
7202 *) Improvements for VMS support.
7206 Changes between 0.9.2b and 0.9.3 [24 May 1999]
7208 *) Bignum library bug fix. IRIX 6 passes "make test" now!
7209 This also avoids the problems with SC4.2 and unpatched SC5.
7210 [Andy Polyakov <appro@fy.chalmers.se>]
7212 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
7213 These are required because of the typesafe stack would otherwise break
7214 existing code. If old code used a structure member which used to be STACK
7215 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
7216 sk_num or sk_value it would produce an error because the num, data members
7217 are not present in STACK_OF. Now it just produces a warning. sk_set
7218 replaces the old method of assigning a value to sk_value
7219 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
7220 that does this will no longer work (and should use sk_set instead) but
7221 this could be regarded as a "questionable" behaviour anyway.
7224 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
7225 correctly handle encrypted S/MIME data.
7228 *) Change type of various DES function arguments from des_cblock
7229 (which means, in function argument declarations, pointer to char)
7230 to des_cblock * (meaning pointer to array with 8 char elements),
7231 which allows the compiler to do more typechecking; it was like
7232 that back in SSLeay, but with lots of ugly casts.
7234 Introduce new type const_des_cblock.
7237 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
7238 problems: find RecipientInfo structure that matches recipient certificate
7239 and initialise the ASN1 structures properly based on passed cipher.
7242 *) Belatedly make the BN tests actually check the results.
7245 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
7246 to and from BNs: it was completely broken. New compilation option
7247 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
7248 key elements as negative integers.
7251 *) Reorganize and speed up MD5.
7252 [Andy Polyakov <appro@fy.chalmers.se>]
7255 [Richard Levitte <richard@levitte.org>]
7257 *) New option -out to asn1parse to allow the parsed structure to be
7258 output to a file. This is most useful when combined with the -strparse
7259 option to examine the output of things like OCTET STRINGS.
7262 *) Make SSL library a little more fool-proof by not requiring any longer
7263 that SSL_set_{accept,connect}_state be called before
7264 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
7265 in many applications because usually everything *appeared* to work as
7266 intended anyway -- now it really works as intended).
7269 *) Move openssl.cnf out of lib/.
7272 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
7273 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
7274 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
7275 [Ralf S. Engelschall]
7277 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
7278 handle PKCS#7 enveloped data properly.
7279 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
7281 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
7282 copying pointers. The cert_st handling is changed by this in
7283 various ways (and thus what used to be known as ctx->default_cert
7284 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
7285 any longer when s->cert does not give us what we need).
7286 ssl_cert_instantiate becomes obsolete by this change.
7287 As soon as we've got the new code right (possibly it already is?),
7288 we have solved a couple of bugs of the earlier code where s->cert
7289 was used as if it could not have been shared with other SSL structures.
7291 Note that using the SSL API in certain dirty ways now will result
7292 in different behaviour than observed with earlier library versions:
7293 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
7294 does not influence s as it used to.
7296 In order to clean up things more thoroughly, inside SSL_SESSION
7297 we don't use CERT any longer, but a new structure SESS_CERT
7298 that holds per-session data (if available); currently, this is
7299 the peer's certificate chain and, for clients, the server's certificate
7300 and temporary key. CERT holds only those values that can have
7301 meaningful defaults in an SSL_CTX.
7304 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
7305 from the internal representation. Various PKCS#7 fixes: remove some
7306 evil casts and set the enc_dig_alg field properly based on the signing
7310 *) Allow PKCS#12 password to be set from the command line or the
7311 environment. Let 'ca' get its config file name from the environment
7312 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
7316 *) Allow certificate policies extension to use an IA5STRING for the
7317 organization field. This is contrary to the PKIX definition but
7318 VeriSign uses it and IE5 only recognises this form. Document 'x509'
7322 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
7323 without disallowing inline assembler and the like for non-pedantic builds.
7326 *) Support Borland C++ builder.
7327 [Janez Jere <jj@void.si>, modified by Ulf Möller]
7332 *) SHA-1 cleanups and performance enhancements.
7333 [Andy Polyakov <appro@fy.chalmers.se>]
7335 *) Sparc v8plus assembler for the bignum library.
7336 [Andy Polyakov <appro@fy.chalmers.se>]
7338 *) Accept any -xxx and +xxx compiler options in Configure.
7341 *) Update HPUX configuration.
7344 *) Add missing sk_<type>_unshift() function to safestack.h
7345 [Ralf S. Engelschall]
7347 *) New function SSL_CTX_use_certificate_chain_file that sets the
7348 "extra_cert"s in addition to the certificate. (This makes sense
7349 only for "PEM" format files, as chains as a whole are not
7353 *) Support verify_depth from the SSL API.
7354 x509_vfy.c had what can be considered an off-by-one-error:
7355 Its depth (which was not part of the external interface)
7356 was actually counting the number of certificates in a chain;
7357 now it really counts the depth.
7360 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
7361 instead of X509err, which often resulted in confusing error
7362 messages since the error codes are not globally unique
7363 (e.g. an alleged error in ssl3_accept when a certificate
7364 didn't match the private key).
7366 *) New function SSL_CTX_set_session_id_context that allows to set a default
7367 value (so that you don't need SSL_set_session_id_context for each
7368 connection using the SSL_CTX).
7371 *) OAEP decoding bug fix.
7374 *) Support INSTALL_PREFIX for package builders, as proposed by
7378 *) New Configure options "threads" and "no-threads". For systems
7379 where the proper compiler options are known (currently Solaris
7380 and Linux), "threads" is the default.
7383 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
7386 *) Install various scripts to $(OPENSSLDIR)/misc, not to
7387 $(INSTALLTOP)/bin -- they shouldn't clutter directories
7388 such as /usr/local/bin.
7391 *) "make linux-shared" to build shared libraries.
7392 [Niels Poppe <niels@netbox.org>]
7394 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
7397 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
7398 extension adding in x509 utility.
7401 *) Remove NOPROTO sections and error code comments.
7404 *) Partial rewrite of the DEF file generator to now parse the ANSI
7408 *) New Configure options --prefix=DIR and --openssldir=DIR.
7411 *) Complete rewrite of the error code script(s). It is all now handled
7412 by one script at the top level which handles error code gathering,
7413 header rewriting and C source file generation. It should be much better
7414 than the old method: it now uses a modified version of Ulf's parser to
7415 read the ANSI prototypes in all header files (thus the old K&R definitions
7416 aren't needed for error creation any more) and do a better job of
7417 translating function codes into names. The old 'ASN1 error code imbedded
7418 in a comment' is no longer necessary and it doesn't use .err files which
7419 have now been deleted. Also the error code call doesn't have to appear all
7420 on one line (which resulted in some large lines...).
7423 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
7426 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
7427 0 (which usually indicates a closed connection), but continue reading.
7430 *) Fix some race conditions.
7433 *) Add support for CRL distribution points extension. Add Certificate
7434 Policies and CRL distribution points documentation.
7437 *) Move the autogenerated header file parts to crypto/opensslconf.h.
7440 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
7441 8 of keying material. Merlin has also confirmed interop with this fix
7442 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
7443 [Merlin Hughes <merlin@baltimore.ie>]
7445 *) Fix lots of warnings.
7446 [Richard Levitte <levitte@stacken.kth.se>]
7448 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
7449 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
7450 [Richard Levitte <levitte@stacken.kth.se>]
7452 *) Fix problems with sizeof(long) == 8.
7453 [Andy Polyakov <appro@fy.chalmers.se>]
7455 *) Change functions to ANSI C.
7458 *) Fix typos in error codes.
7459 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
7461 *) Remove defunct assembler files from Configure.
7464 *) SPARC v8 assembler BIGNUM implementation.
7465 [Andy Polyakov <appro@fy.chalmers.se>]
7467 *) Support for Certificate Policies extension: both print and set.
7468 Various additions to support the r2i method this uses.
7471 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
7472 return a const string when you are expecting an allocated buffer.
7475 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
7476 types DirectoryString and DisplayText.
7479 *) Add code to allow r2i extensions to access the configuration database,
7480 add an LHASH database driver and add several ctx helper functions.
7483 *) Fix an evil bug in bn_expand2() which caused various BN functions to
7484 fail when they extended the size of a BIGNUM.
7487 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
7488 support typesafe stack.
7491 *) Fix typo in SSL_[gs]et_options().
7492 [Nils Frostberg <nils@medcom.se>]
7494 *) Delete various functions and files that belonged to the (now obsolete)
7495 old X509V3 handling code.
7498 *) New Configure option "rsaref".
7501 *) Don't auto-generate pem.h.
7504 *) Introduce type-safe ASN.1 SETs.
7507 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
7508 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
7510 *) Introduce type-safe STACKs. This will almost certainly break lots of code
7511 that links with OpenSSL (well at least cause lots of warnings), but fear
7512 not: the conversion is trivial, and it eliminates loads of evil casts. A
7513 few STACKed things have been converted already. Feel free to convert more.
7514 In the fullness of time, I'll do away with the STACK type altogether.
7517 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
7518 specified in <certfile> by updating the entry in the index.txt file.
7519 This way one no longer has to edit the index.txt file manually for
7520 revoking a certificate. The -revoke option does the gory details now.
7521 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
7523 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
7524 `-text' option at all and this way the `-noout -text' combination was
7525 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
7526 [Ralf S. Engelschall]
7528 *) Make sure a corresponding plain text error message exists for the
7529 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
7530 verify callback function determined that a certificate was revoked.
7531 [Ralf S. Engelschall]
7533 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
7534 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
7535 all available cipers including rc5, which was forgotten until now.
7536 In order to let the testing shell script know which algorithms
7537 are available, a new (up to now undocumented) command
7538 "openssl list-cipher-commands" is used.
7541 *) Bugfix: s_client occasionally would sleep in select() when
7542 it should have checked SSL_pending() first.
7545 *) New functions DSA_do_sign and DSA_do_verify to provide access to
7546 the raw DSA values prior to ASN.1 encoding.
7549 *) Tweaks to Configure
7550 [Niels Poppe <niels@netbox.org>]
7552 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
7556 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
7559 *) New config option to avoid instructions that are illegal on the 80386.
7560 The default code is faster, but requires at least a 486.
7563 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
7564 SSL2_SERVER_VERSION (not used at all) macros, which are now the
7565 same as SSL2_VERSION anyway.
7568 *) New "-showcerts" option for s_client.
7571 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
7572 application. Various cleanups and fixes.
7575 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
7576 modify error routines to work internally. Add error codes and PBE init
7577 to library startup routines.
7580 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
7581 packing functions to asn1 and evp. Changed function names and error
7582 codes along the way.
7585 *) PKCS12 integration: and so it begins... First of several patches to
7586 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
7587 objects to objects.h
7590 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
7591 and display support for Thawte strong extranet extension.
7594 *) Add LinuxPPC support.
7595 [Jeff Dubrule <igor@pobox.org>]
7597 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
7598 bn_div_words in alpha.s.
7599 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
7601 *) Make sure the RSA OAEP test is skipped under -DRSAref because
7602 OAEP isn't supported when OpenSSL is built with RSAref.
7603 [Ulf Moeller <ulf@fitug.de>]
7605 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
7606 so they no longer are missing under -DNOPROTO.
7607 [Soren S. Jorvang <soren@t.dk>]
7610 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
7612 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
7613 doesn't work when the session is reused. Coming soon!
7616 *) Fix a security hole, that allows sessions to be reused in the wrong
7617 context thus bypassing client cert protection! All software that uses
7618 client certs and session caches in multiple contexts NEEDS PATCHING to
7619 allow session reuse! A fuller solution is in the works.
7620 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
7622 *) Some more source tree cleanups (removed obsolete files
7623 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
7624 permission on "config" script to be executable) and a fix for the INSTALL
7626 [Ulf Moeller <ulf@fitug.de>]
7628 *) Remove some legacy and erroneous uses of malloc, free instead of
7630 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
7632 *) Make rsa_oaep_test return non-zero on error.
7633 [Ulf Moeller <ulf@fitug.de>]
7635 *) Add support for native Solaris shared libraries. Configure
7636 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
7637 if someone would make that last step automatic.
7638 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
7640 *) ctx_size was not built with the right compiler during "make links". Fixed.
7643 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
7644 except NULL ciphers". This means the default cipher list will no longer
7645 enable NULL ciphers. They need to be specifically enabled e.g. with
7646 the string "DEFAULT:eNULL".
7649 *) Fix to RSA private encryption routines: if p < q then it would
7650 occasionally produce an invalid result. This will only happen with
7651 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
7654 *) Be less restrictive and allow also `perl util/perlpath.pl
7655 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
7656 because this way one can also use an interpreter named `perl5' (which is
7657 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
7658 installed as `perl').
7659 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7661 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
7662 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7664 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
7665 advapi32.lib to Win32 build and change the pem test comparision
7666 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
7667 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
7668 and crypto/des/ede_cbcm_enc.c.
7671 *) DES quad checksum was broken on big-endian architectures. Fixed.
7674 *) Comment out two functions in bio.h that aren't implemented. Fix up the
7675 Win32 test batch file so it (might) work again. The Win32 test batch file
7676 is horrible: I feel ill....
7679 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
7680 in e_os.h. Audit of header files to check ANSI and non ANSI
7681 sections: 10 functions were absent from non ANSI section and not exported
7682 from Windows DLLs. Fixed up libeay.num for new functions.
7685 *) Make `openssl version' output lines consistent.
7686 [Ralf S. Engelschall]
7688 *) Fix Win32 symbol export lists for BIO functions: Added
7689 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
7690 to ms/libeay{16,32}.def.
7691 [Ralf S. Engelschall]
7693 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
7694 fine under Unix and passes some trivial tests I've now added. But the
7695 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
7696 added to make sure no one expects that this stuff really works in the
7697 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
7698 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
7700 [Ralf S. Engelschall]
7702 *) Fix the generation of two part addresses in perl.
7703 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
7705 *) Add config entry for Linux on MIPS.
7706 [John Tobey <jtobey@channel1.com>]
7708 *) Make links whenever Configure is run, unless we are on Windoze.
7711 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
7712 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
7716 *) Add a useful kludge to allow package maintainers to specify compiler and
7717 other platforms details on the command line without having to patch the
7718 Configure script everytime: One now can use ``perl Configure
7719 <id>:<details>'', i.e. platform ids are allowed to have details appended
7720 to them (seperated by colons). This is treated as there would be a static
7721 pre-configured entry in Configure's %table under key <id> with value
7722 <details> and ``perl Configure <id>'' is called. So, when you want to
7723 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
7724 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
7725 now, which overrides the FreeBSD-elf entry on-the-fly.
7726 [Ralf S. Engelschall]
7728 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
7731 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
7732 on the `perl Configure ...' command line. This way one can compile
7733 OpenSSL libraries with Position Independent Code (PIC) which is needed
7734 for linking it into DSOs.
7735 [Ralf S. Engelschall]
7737 *) Remarkably, export ciphers were totally broken and no-one had noticed!
7741 *) Cleaned up the LICENSE document: The official contact for any license
7742 questions now is the OpenSSL core team under openssl-core@openssl.org.
7743 And add a paragraph about the dual-license situation to make sure people
7744 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
7745 to the OpenSSL toolkit.
7746 [Ralf S. Engelschall]
7748 *) General source tree makefile cleanups: Made `making xxx in yyy...'
7749 display consistent in the source tree and replaced `/bin/rm' by `rm'.
7750 Additonally cleaned up the `make links' target: Remove unnecessary
7751 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
7752 to speed processing and no longer clutter the display with confusing
7753 stuff. Instead only the actually done links are displayed.
7754 [Ralf S. Engelschall]
7756 *) Permit null encryption ciphersuites, used for authentication only. It used
7757 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
7758 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
7762 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
7763 signed attributes when verifying signatures (this would break them),
7764 the detached data encoding was wrong and public keys obtained using
7765 X509_get_pubkey() weren't freed.
7768 *) Add text documentation for the BUFFER functions. Also added a work around
7769 to a Win95 console bug. This was triggered by the password read stuff: the
7770 last character typed gets carried over to the next fread(). If you were
7771 generating a new cert request using 'req' for example then the last
7772 character of the passphrase would be CR which would then enter the first
7776 *) Added the new `Includes OpenSSL Cryptography Software' button as
7777 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
7778 button and can be used by applications based on OpenSSL to show the
7779 relationship to the OpenSSL project.
7780 [Ralf S. Engelschall]
7782 *) Remove confusing variables in function signatures in files
7783 ssl/ssl_lib.c and ssl/ssl.h.
7784 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7786 *) Don't install bss_file.c under PREFIX/include/
7787 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7789 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
7790 functions that return function pointers and has support for NT specific
7791 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
7792 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
7793 unsigned to signed types: this was killing the Win32 compile.
7796 *) Add new certificate file to stack functions,
7797 SSL_add_dir_cert_subjects_to_stack() and
7798 SSL_add_file_cert_subjects_to_stack(). These largely supplant
7799 SSL_load_client_CA_file(), and can be used to add multiple certs easily
7800 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
7801 This means that Apache-SSL and similar packages don't have to mess around
7802 to add as many CAs as they want to the preferred list.
7805 *) Experiment with doxygen documentation. Currently only partially applied to
7807 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
7808 openssl.doxy as the configuration file.
7811 *) Get rid of remaining C++-style comments which strict C compilers hate.
7812 [Ralf S. Engelschall, pointed out by Carlos Amengual]
7814 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
7815 compiled in by default: it has problems with large keys.
7818 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
7819 DH private keys and/or callback functions which directly correspond to
7820 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
7821 is needed for applications which have to configure certificates on a
7822 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
7824 For the RSA certificate situation is makes no difference, but
7825 for the DSA certificate situation this fixes the "no shared cipher"
7826 problem where the OpenSSL cipher selection procedure failed because the
7827 temporary keys were not overtaken from the context and the API provided
7828 no way to reconfigure them.
7829 The new functions now let applications reconfigure the stuff and they
7830 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
7831 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
7832 non-public-API function ssl_cert_instantiate() is used as a helper
7833 function and also to reduce code redundancy inside ssl_rsa.c.
7834 [Ralf S. Engelschall]
7836 *) Move s_server -dcert and -dkey options out of the undocumented feature
7837 area because they are useful for the DSA situation and should be
7838 recognized by the users.
7839 [Ralf S. Engelschall]
7841 *) Fix the cipher decision scheme for export ciphers: the export bits are
7842 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
7843 SSL_EXP_MASK. So, the original variable has to be used instead of the
7844 already masked variable.
7845 [Richard Levitte <levitte@stacken.kth.se>]
7847 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
7848 [Richard Levitte <levitte@stacken.kth.se>]
7850 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
7851 from `int' to `unsigned int' because it's a length and initialized by
7852 EVP_DigestFinal() which expects an `unsigned int *'.
7853 [Richard Levitte <levitte@stacken.kth.se>]
7855 *) Don't hard-code path to Perl interpreter on shebang line of Configure
7856 script. Instead use the usual Shell->Perl transition trick.
7857 [Ralf S. Engelschall]
7859 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
7860 (in addition to RSA certificates) to match the behaviour of `openssl dsa
7861 -noout -modulus' as it's already the case for `openssl rsa -noout
7862 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
7863 currently the public key is printed (a decision which was already done by
7864 `openssl dsa -modulus' in the past) which serves a similar purpose.
7865 Additionally the NO_RSA no longer completely removes the whole -modulus
7866 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
7868 [Ralf S. Engelschall]
7870 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
7871 BIO. See the source (crypto/evp/bio_ok.c) for more info.
7872 [Arne Ansper <arne@ats.cyber.ee>]
7874 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
7875 to be added. Now both 'req' and 'ca' can use new objects defined in the
7879 *) Add cool BIO that does syslog (or event log on NT).
7880 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
7882 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
7883 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
7884 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
7885 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
7888 *) Add preliminary config info for new extension code.
7891 *) Make RSA_NO_PADDING really use no padding.
7892 [Ulf Moeller <ulf@fitug.de>]
7894 *) Generate errors when private/public key check is done.
7897 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
7898 for some CRL extensions and new objects added.
7901 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
7902 key usage extension and fuller support for authority key id.
7905 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
7906 padding method for RSA, which is recommended for new applications in PKCS
7907 #1 v2.0 (RFC 2437, October 1998).
7908 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
7909 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
7910 against Bleichbacher's attack on RSA.
7911 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
7914 *) Updates to the new SSL compression code
7915 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7917 *) Fix so that the version number in the master secret, when passed
7918 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
7919 (because the server will not accept higher), that the version number
7920 is 0x03,0x01, not 0x03,0x00
7921 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7923 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
7924 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
7925 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
7928 *) Support for RAW extensions where an arbitrary extension can be
7929 created by including its DER encoding. See apps/openssl.cnf for
7933 *) Make sure latest Perl versions don't interpret some generated C array
7934 code as Perl array code in the crypto/err/err_genc.pl script.
7935 [Lars Weber <3weber@informatik.uni-hamburg.de>]
7937 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
7938 not many people have the assembler. Various Win32 compilation fixes and
7939 update to the INSTALL.W32 file with (hopefully) more accurate Win32
7943 *) Modify configure script 'Configure' to automatically create crypto/date.h
7944 file under Win32 and also build pem.h from pem.org. New script
7945 util/mkfiles.pl to create the MINFO file on environments that can't do a
7946 'make files': perl util/mkfiles.pl >MINFO should work.
7949 *) Major rework of DES function declarations, in the pursuit of correctness
7950 and purity. As a result, many evil casts evaporated, and some weirdness,
7951 too. You may find this causes warnings in your code. Zapping your evil
7952 casts will probably fix them. Mostly.
7955 *) Fix for a typo in asn1.h. Bug fix to object creation script
7956 obj_dat.pl. It considered a zero in an object definition to mean
7957 "end of object": none of the objects in objects.h have any zeros
7958 so it wasn't spotted.
7959 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
7961 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
7962 Masking (CBCM). In the absence of test vectors, the best I have been able
7963 to do is check that the decrypt undoes the encrypt, so far. Send me test
7964 vectors if you have them.
7967 *) Correct calculation of key length for export ciphers (too much space was
7968 allocated for null ciphers). This has not been tested!
7971 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
7972 message is now correct (it understands "crypto" and "ssl" on its
7973 command line). There is also now an "update" option. This will update
7974 the util/ssleay.num and util/libeay.num files with any new functions.
7976 perl util/mkdef.pl crypto ssl update
7977 it will update them.
7980 *) Overhauled the Perl interface (perl/*):
7981 - ported BN stuff to OpenSSL's different BN library
7982 - made the perl/ source tree CVS-aware
7983 - renamed the package from SSLeay to OpenSSL (the files still contain
7984 their history because I've copied them in the repository)
7985 - removed obsolete files (the test scripts will be replaced
7986 by better Test::Harness variants in the future)
7987 [Ralf S. Engelschall]
7989 *) First cut for a very conservative source tree cleanup:
7990 1. merge various obsolete readme texts into doc/ssleay.txt
7991 where we collect the old documents and readme texts.
7992 2. remove the first part of files where I'm already sure that we no
7993 longer need them because of three reasons: either they are just temporary
7994 files which were left by Eric or they are preserved original files where
7995 I've verified that the diff is also available in the CVS via "cvs diff
7996 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
7997 the crypto/md/ stuff).
7998 [Ralf S. Engelschall]
8000 *) More extension code. Incomplete support for subject and issuer alt
8001 name, issuer and authority key id. Change the i2v function parameters
8002 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
8003 what that's for :-) Fix to ASN1 macro which messed up
8004 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
8007 *) Preliminary support for ENUMERATED type. This is largely copied from the
8011 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
8012 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8014 *) Make sure `make rehash' target really finds the `openssl' program.
8015 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8017 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
8018 like to hear about it if this slows down other processors.
8021 *) Add CygWin32 platform information to Configure script.
8022 [Alan Batie <batie@aahz.jf.intel.com>]
8024 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
8025 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
8027 *) New program nseq to manipulate netscape certificate sequences
8030 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
8034 *) Fixes to BN code. Previously the default was to define BN_RECURSION
8035 but the BN code had some problems that would cause failures when
8036 doing certificate verification and some other functions.
8037 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8039 *) Add ASN1 and PEM code to support netscape certificate sequences.
8042 *) Add ASN1 and PEM code to support netscape certificate sequences.
8045 *) Add several PKIX and private extended key usage OIDs.
8048 *) Modify the 'ca' program to handle the new extension code. Modify
8049 openssl.cnf for new extension format, add comments.
8052 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
8053 and add a sample to openssl.cnf so req -x509 now adds appropriate
8057 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
8058 error code, add initial support to X509_print() and x509 application.
8061 *) Takes a deep breath and start addding X509 V3 extension support code. Add
8062 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
8063 stuff is currently isolated and isn't even compiled yet.
8066 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
8067 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
8068 Removed the versions check from X509 routines when loading extensions:
8069 this allows certain broken certificates that don't set the version
8070 properly to be processed.
8073 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
8074 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
8075 can still be regenerated with "make depend".
8078 *) Spelling mistake in C version of CAST-128.
8079 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
8081 *) Changes to the error generation code. The perl script err-code.pl
8082 now reads in the old error codes and retains the old numbers, only
8083 adding new ones if necessary. It also only changes the .err files if new
8084 codes are added. The makefiles have been modified to only insert errors
8085 when needed (to avoid needlessly modifying header files). This is done
8086 by only inserting errors if the .err file is newer than the auto generated
8087 C file. To rebuild all the error codes from scratch (the old behaviour)
8088 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
8089 or delete all the .err files.
8092 *) CAST-128 was incorrectly implemented for short keys. The C version has
8093 been fixed, but is untested. The assembler versions are also fixed, but
8094 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
8095 to regenerate it if needed.
8096 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
8097 Hagino <itojun@kame.net>]
8099 *) File was opened incorrectly in randfile.c.
8100 [Ulf Möller <ulf@fitug.de>]
8102 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
8103 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
8104 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
8105 al: it's just almost always a UTCTime. Note this patch adds new error
8106 codes so do a "make errors" if there are problems.
8109 *) Correct Linux 1 recognition in config.
8110 [Ulf Möller <ulf@fitug.de>]
8112 *) Remove pointless MD5 hash when using DSA keys in ca.
8113 [Anonymous <nobody@replay.com>]
8115 *) Generate an error if given an empty string as a cert directory. Also
8116 generate an error if handed NULL (previously returned 0 to indicate an
8117 error, but didn't set one).
8118 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
8120 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
8123 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
8124 parameters. This was causing a warning which killed off the Win32 compile.
8127 *) Remove C++ style comments from crypto/bn/bn_local.h.
8128 [Neil Costigan <neil.costigan@celocom.com>]
8130 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
8131 based on a text string, looking up short and long names and finally
8132 "dot" format. The "dot" format stuff didn't work. Added new function
8133 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
8134 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
8135 OID is not part of the table.
8138 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
8139 X509_LOOKUP_by_alias().
8142 *) Sort openssl functions by name.
8145 *) Get the gendsa program working (hopefully) and add it to app list. Remove
8146 encryption from sample DSA keys (in case anyone is interested the password
8150 *) Make _all_ *_free functions accept a NULL pointer.
8151 [Frans Heymans <fheymans@isaserver.be>]
8153 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
8155 [Anonymous <nobody@replay.com>]
8157 *) s_server should send the CAfile as acceptable CAs, not its own cert.
8158 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8160 *) Don't blow it for numeric -newkey arguments to apps/req.
8161 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8163 *) Temp key "for export" tests were wrong in s3_srvr.c.
8164 [Anonymous <nobody@replay.com>]
8166 *) Add prototype for temp key callback functions
8167 SSL_CTX_set_tmp_{rsa,dh}_callback().
8170 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
8171 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
8174 *) X509_name_add_entry() freed the wrong thing after an error.
8175 [Arne Ansper <arne@ats.cyber.ee>]
8177 *) rsa_eay.c would attempt to free a NULL context.
8178 [Arne Ansper <arne@ats.cyber.ee>]
8180 *) BIO_s_socket() had a broken should_retry() on Windoze.
8181 [Arne Ansper <arne@ats.cyber.ee>]
8183 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
8184 [Arne Ansper <arne@ats.cyber.ee>]
8186 *) Make sure the already existing X509_STORE->depth variable is initialized
8187 in X509_STORE_new(), but document the fact that this variable is still
8188 unused in the certificate verification process.
8189 [Ralf S. Engelschall]
8191 *) Fix the various library and apps files to free up pkeys obtained from
8192 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
8195 *) Fix reference counting in X509_PUBKEY_get(). This makes
8196 demos/maurice/example2.c work, amongst others, probably.
8197 [Steve Henson and Ben Laurie]
8199 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
8200 `openssl' and second, the shortcut symlinks for the `openssl <command>'
8201 are no longer created. This way we have a single and consistent command
8202 line interface `openssl <command>', similar to `cvs <command>'.
8203 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
8205 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
8206 BIT STRING wrapper always have zero unused bits.
8209 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
8212 *) Make the top-level INSTALL documentation easier to understand.
8215 *) Makefiles updated to exit if an error occurs in a sub-directory
8216 make (including if user presses ^C) [Paul Sutton]
8218 *) Make Montgomery context stuff explicit in RSA data structure.
8221 *) Fix build order of pem and err to allow for generated pem.h.
8224 *) Fix renumbering bug in X509_NAME_delete_entry().
8227 *) Enhanced the err-ins.pl script so it makes the error library number
8228 global and can add a library name. This is needed for external ASN1 and
8229 other error libraries.
8232 *) Fixed sk_insert which never worked properly.
8235 *) Fix ASN1 macros so they can handle indefinite length construted
8236 EXPLICIT tags. Some non standard certificates use these: they can now
8240 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
8241 into a single doc/ssleay.txt bundle. This way the information is still
8242 preserved but no longer messes up this directory. Now it's new room for
8243 the new set of documenation files.
8244 [Ralf S. Engelschall]
8246 *) SETs were incorrectly DER encoded. This was a major pain, because they
8247 shared code with SEQUENCEs, which aren't coded the same. This means that
8248 almost everything to do with SETs or SEQUENCEs has either changed name or
8249 number of arguments.
8250 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
8252 *) Fix test data to work with the above.
8255 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
8256 was already fixed by Eric for 0.9.1 it seems.
8257 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
8259 *) Autodetect FreeBSD3.
8262 *) Fix various bugs in Configure. This affects the following platforms:
8266 unixware-2.0-pentium
8270 *) Eliminate generated files from CVS. Reorder tests to regenerate files
8271 before they are needed.
8274 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
8278 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
8280 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
8281 changed SSLeay to OpenSSL in version strings.
8282 [Ralf S. Engelschall]
8284 *) Some fixups to the top-level documents.
8287 *) Fixed the nasty bug where rsaref.h was not found under compile-time
8288 because the symlink to include/ was missing.
8289 [Ralf S. Engelschall]
8291 *) Incorporated the popular no-RSA/DSA-only patches
8292 which allow to compile a RSA-free SSLeay.
8293 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
8295 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
8296 when "ssleay" is still not found.
8297 [Ralf S. Engelschall]
8299 *) Added more platforms to Configure: Cray T3E, HPUX 11,
8300 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
8302 *) Updated the README file.
8303 [Ralf S. Engelschall]
8305 *) Added various .cvsignore files in the CVS repository subdirs
8306 to make a "cvs update" really silent.
8307 [Ralf S. Engelschall]
8309 *) Recompiled the error-definition header files and added
8310 missing symbols to the Win32 linker tables.
8311 [Ralf S. Engelschall]
8313 *) Cleaned up the top-level documents;
8314 o new files: CHANGES and LICENSE
8315 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
8316 o merged COPYRIGHT into LICENSE
8317 o removed obsolete TODO file
8318 o renamed MICROSOFT to INSTALL.W32
8319 [Ralf S. Engelschall]
8321 *) Removed dummy files from the 0.9.1b source tree:
8322 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
8323 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
8324 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
8325 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
8326 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
8327 [Ralf S. Engelschall]
8329 *) Added various platform portability fixes.
8332 *) The Genesis of the OpenSSL rpject:
8333 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
8334 Young and Tim J. Hudson created while they were working for C2Net until
8336 [The OpenSSL Project]
8339 Changes between 0.9.0b and 0.9.1b [not released]
8341 *) Updated a few CA certificates under certs/
8344 *) Changed some BIGNUM api stuff.
8347 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
8348 DGUX x86, Linux Alpha, etc.
8351 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
8352 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
8356 *) Add -strparse option to asn1pars program which parses nested
8358 [Dr Stephen Henson <shenson@bigfoot.com>]
8360 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
8363 *) DSA fix for "ca" program.
8366 *) Added "-genkey" option to "dsaparam" program.
8369 *) Added RIPE MD160 (rmd160) message digest.
8372 *) Added -a (all) option to "ssleay version" command.
8375 *) Added PLATFORM define which is the id given to Configure.
8378 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
8381 *) Extended the ASN.1 parser routines.
8384 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
8387 *) Added a BN_CTX to the BN library.
8390 *) Fixed the weak key values in DES library
8393 *) Changed API in EVP library for cipher aliases.
8396 *) Added support for RC2/64bit cipher.
8399 *) Converted the lhash library to the crypto/mem.c functions.
8402 *) Added more recognized ASN.1 object ids.
8405 *) Added more RSA padding checks for SSL/TLS.
8408 *) Added BIO proxy/filter functionality.
8411 *) Added extra_certs to SSL_CTX which can be used
8412 send extra CA certificates to the client in the CA cert chain sending
8413 process. It can be configured with SSL_CTX_add_extra_chain_cert().
8416 *) Now Fortezza is denied in the authentication phase because
8417 this is key exchange mechanism is not supported by SSLeay at all.
8420 *) Additional PKCS1 checks.
8423 *) Support the string "TLSv1" for all TLS v1 ciphers.
8426 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
8427 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
8430 *) Fixed a few memory leaks.
8433 *) Fixed various code and comment typos.
8436 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
8437 bytes sent in the client random.
8438 [Edward Bishop <ebishop@spyglass.com>]