5 Changes between 0.9.8k and 0.9.8l [xx XXX xxxx]
7 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
8 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
10 [Guenter <lists@gknw.net>]
12 *) Fix the server certificate chain building code to use X509_verify_cert(),
13 it used to have an ad-hoc builder which was unable to cope with anything
14 other than a simple chain.
15 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
17 *) Don't check self signed certificate signatures in X509_verify_cert()
18 by default (a flag can override this): it just wastes time without
19 adding any security. As a useful side effect self signed root CAs
20 with non-FIPS digests are now usable in FIPS mode.
23 *) In dtls1_process_out_of_seq_message() the check if the current message
24 is already buffered was missing. For every new message was memory
25 allocated, allowing an attacker to perform an denial of service attack
26 with sending out of seq handshake messages until there is no memory
27 left. Additionally every future messege was buffered, even if the
28 sequence number made no sense and would be part of another handshake.
29 So only messages with sequence numbers less than 10 in advance will be
30 buffered. (CVE-2009-1378)
31 [Robin Seggelmann, discovered by Daniel Mentz]
33 *) Records are buffered if they arrive with a future epoch to be
34 processed after finishing the corresponding handshake. There is
35 currently no limitation to this buffer allowing an attacker to perform
36 a DOS attack with sending records with future epochs until there is no
37 memory left. This patch adds the pqueue_size() function to detemine
38 the size of a buffer and limits the record buffer to 100 entries.
40 [Robin Seggelmann, discovered by Daniel Mentz]
42 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
43 parent structure is freed. (CVE-2009-1379)
46 *) Handle non-blocking I/O properly in SSL_shutdown() call.
47 [Darryl Miles <darryl-mailinglists@netbauds.net>]
50 [Ilya O. <vrghost@gmail.com>]
52 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
54 *) Don't set val to NULL when freeing up structures, it is freed up by
55 underlying code. If sizeof(void *) > sizeof(long) this can result in
56 zeroing past the valid field. (CVE-2009-0789)
57 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
59 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
60 checked correctly. This would allow some invalid signed attributes to
61 appear to verify correctly. (CVE-2009-0591)
62 [Ivan Nestlerode <inestlerode@us.ibm.com>]
64 *) Reject UniversalString and BMPString types with invalid lengths. This
65 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
66 a legal length. (CVE-2009-0590)
69 *) Set S/MIME signing as the default purpose rather than setting it
70 unconditionally. This allows applications to override it at the store
74 *) Permit restricted recursion of ASN1 strings. This is needed in practice
75 to handle some structures.
78 *) Improve efficiency of mem_gets: don't search whole buffer each time
80 [Jeremy Shapiro <jnshapir@us.ibm.com>]
82 *) New -hex option for openssl rand.
85 *) Print out UTF8String and NumericString when parsing ASN1.
88 *) Support NumericString type for name components.
91 *) Allow CC in the environment to override the automatically chosen
92 compiler. Note that nothing is done to ensure flags work with the
96 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
98 *) Properly check EVP_VerifyFinal() and similar return values
100 [Ben Laurie, Bodo Moeller, Google Security Team]
102 *) Enable TLS extensions by default.
105 *) Allow the CHIL engine to be loaded, whether the application is
106 multithreaded or not. (This does not release the developer from the
107 obligation to set up the dynamic locking callbacks.)
108 [Sander Temme <sander@temme.net>]
110 *) Use correct exit code if there is an error in dgst command.
111 [Steve Henson; problem pointed out by Roland Dirlewanger]
113 *) Tweak Configure so that you need to say "experimental-jpake" to enable
114 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
117 *) Add experimental JPAKE support, including demo authentication in
118 s_client and s_server.
121 *) Set the comparison function in v3_addr_canonize().
122 [Rob Austein <sra@hactrn.net>]
124 *) Add support for XMPP STARTTLS in s_client.
125 [Philip Paeps <philip@freebsd.org>]
127 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
128 to ensure that even with this option, only ciphersuites in the
129 server's preference list will be accepted. (Note that the option
130 applies only when resuming a session, so the earlier behavior was
131 just about the algorithm choice for symmetric cryptography.)
134 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
136 *) Fix NULL pointer dereference if a DTLS server recieved
137 ChangeCipherSpec as first record (CVE-2009-1386)
138 [Bodo Moeller, discovered by Alex Lam]
140 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
141 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
144 *) The fix in 0.9.8c that supposedly got rid of unsafe
145 double-checked locking was incomplete for RSA blinding,
146 addressing just one layer of what turns out to have been
147 doubly unsafe triple-checked locking.
149 So now fix this for real by retiring the MONT_HELPER macro
150 in crypto/rsa/rsa_eay.c.
152 [Bodo Moeller; problem pointed out by Marius Schilder]
154 *) Various precautionary measures:
156 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
158 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
159 (NB: This would require knowledge of the secret session ticket key
160 to exploit, in which case you'd be SOL either way.)
162 - Change bn_nist.c so that it will properly handle input BIGNUMs
163 outside the expected range.
165 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
168 [Neel Mehta, Bodo Moeller]
170 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
171 the load fails. Useful for distros.
172 [Ben Laurie and the FreeBSD team]
174 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
177 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
180 *) Expand ENGINE to support engine supplied SSL client certificate functions.
182 This work was sponsored by Logica.
185 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
186 keystores. Support for SSL/TLS client authentication too.
187 Not compiled unless enable-capieng specified to Configure.
189 This work was sponsored by Logica.
192 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
193 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
194 attribute creation routines such as certifcate requests and PKCS#12
198 Changes between 0.9.8g and 0.9.8h [28 May 2008]
200 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
201 handshake which could lead to a cilent crash as found using the
202 Codenomicon TLS test suite (CVE-2008-1672)
203 [Steve Henson, Mark Cox]
205 *) Fix double free in TLS server name extensions which could lead to
206 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
209 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
211 Clear the error queue to ensure that error entries left from
212 older function calls do not interfere with the correct operation.
213 [Lutz Jaenicke, Erik de Castro Lopo]
215 *) Remove root CA certificates of commercial CAs:
217 The OpenSSL project does not recommend any specific CA and does not
218 have any policy with respect to including or excluding any CA.
219 Therefore it does not make any sense to ship an arbitrary selection
220 of root CA certificates with the OpenSSL software.
223 *) RSA OAEP patches to fix two separate invalid memory reads.
224 The first one involves inputs when 'lzero' is greater than
225 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
226 before the beginning of from). The second one involves inputs where
227 the 'db' section contains nothing but zeroes (there is a one-byte
228 invalid read after the end of 'db').
229 [Ivan Nestlerode <inestlerode@us.ibm.com>]
231 *) Partial backport from 0.9.9-dev:
233 Introduce bn_mul_mont (dedicated Montgomery multiplication
234 procedure) as a candidate for BIGNUM assembler implementation.
235 While 0.9.9-dev uses assembler for various architectures, only
236 x86_64 is available by default here in the 0.9.8 branch, and
237 32-bit x86 is available through a compile-time setting.
239 To try the 32-bit x86 assembler implementation, use Configure
240 option "enable-montasm" (which exists only for this backport).
242 As "enable-montasm" for 32-bit x86 disclaims code stability
243 anyway, in this constellation we activate additional code
244 backported from 0.9.9-dev for further performance improvements,
245 namely BN_from_montgomery_word. (To enable this otherwise,
246 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
248 [Andy Polyakov (backport partially by Bodo Moeller)]
250 *) Add TLS session ticket callback. This allows an application to set
251 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
252 values. This is useful for key rollover for example where several key
253 sets may exist with different names.
256 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
257 This was broken until now in 0.9.8 releases, such that the only way
258 a registered ENGINE could be used (assuming it initialises
259 successfully on the host) was to explicitly set it as the default
260 for the relevant algorithms. This is in contradiction with 0.9.7
261 behaviour and the documentation. With this fix, when an ENGINE is
262 registered into a given algorithm's table of implementations, the
263 'uptodate' flag is reset so that auto-discovery will be used next
264 time a new context for that algorithm attempts to select an
266 [Ian Lister (tweaked by Geoff Thorpe)]
268 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
269 implemention in the following ways:
271 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
274 Lack of BER streaming support means one pass streaming processing is
275 only supported if data is detached: setting the streaming flag is
276 ignored for embedded content.
278 CMS support is disabled by default and must be explicitly enabled
279 with the enable-cms configuration option.
282 *) Update the GMP engine glue to do direct copies between BIGNUM and
283 mpz_t when openssl and GMP use the same limb size. Otherwise the
284 existing "conversion via a text string export" trick is still used.
285 [Paul Sheer <paulsheer@gmail.com>]
287 *) Zlib compression BIO. This is a filter BIO which compressed and
288 uncompresses any data passed through it.
291 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
292 RFC3394 compatible AES key wrapping.
295 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
296 sets string data without copying. X509_ALGOR_set0() and
297 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
298 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
299 from an X509_ATTRIBUTE structure optionally checking it occurs only
300 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
304 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
305 to get the expected BN_FLG_CONSTTIME behavior.
306 [Bodo Moeller (Google)]
310 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
311 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
312 - added some more tests to do_tests.pl
313 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
314 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
315 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
316 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
317 - various changes to netware.pl to enable gcc-cross builds on Win32
319 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
320 - various changes to fix missing prototype warnings
321 - fixed x86nasm.pl to create correct asm files for NASM COFF output
322 - added AES, WHIRLPOOL and CPUID assembler code to build files
323 - added missing AES assembler make rules to mk1mf.pl
324 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
325 [Guenter Knauf <eflash@gmx.net>]
327 *) Implement certificate status request TLS extension defined in RFC3546.
328 A client can set the appropriate parameters and receive the encoded
329 OCSP response via a callback. A server can query the supplied parameters
330 and set the encoded OCSP response in the callback. Add simplified examples
331 to s_client and s_server.
334 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
337 + Binary incompatibility of ssl_ctx_st structure
338 + DTLS interoperation with non-compliant servers
339 + Don't call get_session_cb() without proposed session
340 + Fix ia64 assembler code
341 [Andy Polyakov, Steve Henson]
343 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
345 *) DTLS Handshake overhaul. There were longstanding issues with
346 OpenSSL DTLS implementation, which were making it impossible for
347 RFC 4347 compliant client to communicate with OpenSSL server.
348 Unfortunately just fixing these incompatibilities would "cut off"
349 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
350 server keeps tolerating non RFC compliant syntax. The opposite is
351 not true, 0.9.8f client can not communicate with earlier server.
352 This update even addresses CVE-2007-4995.
355 *) Changes to avoid need for function casts in OpenSSL: some compilers
356 (gcc 4.2 and later) reject their use.
357 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
360 *) Add RFC4507 support to OpenSSL. This includes the corrections in
361 RFC4507bis. The encrypted ticket format is an encrypted encoded
362 SSL_SESSION structure, that way new session features are automatically
365 If a client application caches session in an SSL_SESSION structure
366 support is transparent because tickets are now stored in the encoded
369 The SSL_CTX structure automatically generates keys for ticket
370 protection in servers so again support should be possible
371 with no application modification.
373 If a client or server wishes to disable RFC4507 support then the option
374 SSL_OP_NO_TICKET can be set.
376 Add a TLS extension debugging callback to allow the contents of any client
377 or server extensions to be examined.
379 This work was sponsored by Google.
382 *) Add initial support for TLS extensions, specifically for the server_name
383 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
384 have new members for a host name. The SSL data structure has an
385 additional member SSL_CTX *initial_ctx so that new sessions can be
386 stored in that context to allow for session resumption, even after the
387 SSL has been switched to a new SSL_CTX in reaction to a client's
388 server_name extension.
390 New functions (subject to change):
393 SSL_get_servername_type()
396 New CTRL codes and macros (subject to change):
398 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
399 - SSL_CTX_set_tlsext_servername_callback()
400 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
401 - SSL_CTX_set_tlsext_servername_arg()
402 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
404 openssl s_client has a new '-servername ...' option.
406 openssl s_server has new options '-servername_host ...', '-cert2 ...',
407 '-key2 ...', '-servername_fatal' (subject to change). This allows
408 testing the HostName extension for a specific single host name ('-cert'
409 and '-key' remain fallbacks for handshakes without HostName
410 negotiation). If the unrecogninzed_name alert has to be sent, this by
411 default is a warning; it becomes fatal with the '-servername_fatal'
414 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
416 *) Add AES and SSE2 assembly language support to VC++ build.
419 *) Mitigate attack on final subtraction in Montgomery reduction.
422 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
423 (which previously caused an internal error).
426 *) Squeeze another 10% out of IGE mode when in != out.
429 *) AES IGE mode speedup.
430 [Dean Gaudet (Google)]
432 *) Add the Korean symmetric 128-bit cipher SEED (see
433 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
434 add SEED ciphersuites from RFC 4162:
436 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
437 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
438 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
439 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
441 To minimize changes between patchlevels in the OpenSSL 0.9.8
442 series, SEED remains excluded from compilation unless OpenSSL
443 is configured with 'enable-seed'.
446 *) Mitigate branch prediction attacks, which can be practical if a
447 single processor is shared, allowing a spy process to extract
448 information. For detailed background information, see
449 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
450 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
451 and Necessary Software Countermeasures"). The core of the change
452 are new versions BN_div_no_branch() and
453 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
454 respectively, which are slower, but avoid the security-relevant
455 conditional branches. These are automatically called by BN_div()
456 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
457 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
458 remove a conditional branch.
460 BN_FLG_CONSTTIME is the new name for the previous
461 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
462 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
463 in the exponent causes BN_mod_exp_mont() to use the alternative
464 implementation in BN_mod_exp_mont_consttime().) The old name
465 remains as a deprecated alias.
467 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
468 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
469 constant-time implementations for more than just exponentiation.
470 Here too the old name is kept as a deprecated alias.
472 BN_BLINDING_new() will now use BN_dup() for the modulus so that
473 the BN_BLINDING structure gets an independent copy of the
474 modulus. This means that the previous "BIGNUM *m" argument to
475 BN_BLINDING_new() and to BN_BLINDING_create_param() now
476 essentially becomes "const BIGNUM *m", although we can't actually
477 change this in the header file before 0.9.9. It allows
478 RSA_setup_blinding() to use BN_with_flags() on the modulus to
479 enable BN_FLG_CONSTTIME.
481 [Matthew D Wood (Intel Corp)]
483 *) In the SSL/TLS server implementation, be strict about session ID
484 context matching (which matters if an application uses a single
485 external cache for different purposes). Previously,
486 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
487 set. This did ensure strict client verification, but meant that,
488 with applications using a single external cache for quite
489 different requirements, clients could circumvent ciphersuite
490 restrictions for a given session ID context by starting a session
491 in a different context.
494 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
495 a ciphersuite string such as "DEFAULT:RSA" cannot enable
496 authentication-only ciphersuites.
499 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
500 not complete and could lead to a possible single byte overflow
501 (CVE-2007-5135) [Ben Laurie]
503 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
505 *) Since AES128 and AES256 (and similarly Camellia128 and
506 Camellia256) share a single mask bit in the logic of
507 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
508 kludge to work properly if AES128 is available and AES256 isn't
509 (or if Camellia128 is available and Camellia256 isn't).
512 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
513 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
514 When a point or a seed is encoded in a BIT STRING, we need to
515 prevent the removal of trailing zero bits to get the proper DER
516 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
517 of a NamedBitList, for which trailing 0 bits need to be removed.)
520 *) Have SSL/TLS server implementation tolerate "mismatched" record
521 protocol version while receiving ClientHello even if the
522 ClientHello is fragmented. (The server can't insist on the
523 particular protocol version it has chosen before the ServerHello
524 message has informed the client about his choice.)
527 *) Add RFC 3779 support.
528 [Rob Austein for ARIN, Ben Laurie]
530 *) Load error codes if they are not already present instead of using a
531 static variable. This allows them to be cleanly unloaded and reloaded.
532 Improve header file function name parsing.
535 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
536 or CAPABILITY handshake as required by RFCs.
539 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
541 *) Introduce limits to prevent malicious keys being able to
542 cause a denial of service. (CVE-2006-2940)
543 [Steve Henson, Bodo Moeller]
545 *) Fix ASN.1 parsing of certain invalid structures that can result
546 in a denial of service. (CVE-2006-2937) [Steve Henson]
548 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
549 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
551 *) Fix SSL client code which could crash if connecting to a
552 malicious SSLv2 server. (CVE-2006-4343)
553 [Tavis Ormandy and Will Drewry, Google Security Team]
555 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
556 match only those. Before that, "AES256-SHA" would be interpreted
557 as a pattern and match "AES128-SHA" too (since AES128-SHA got
558 the same strength classification in 0.9.7h) as we currently only
559 have a single AES bit in the ciphersuite description bitmap.
560 That change, however, also applied to ciphersuite strings such as
561 "RC4-MD5" that intentionally matched multiple ciphersuites --
562 namely, SSL 2.0 ciphersuites in addition to the more common ones
563 from SSL 3.0/TLS 1.0.
565 So we change the selection algorithm again: Naming an explicit
566 ciphersuite selects this one ciphersuite, and any other similar
567 ciphersuite (same bitmap) from *other* protocol versions.
568 Thus, "RC4-MD5" again will properly select both the SSL 2.0
569 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
571 Since SSL 2.0 does not have any ciphersuites for which the
572 128/256 bit distinction would be relevant, this works for now.
573 The proper fix will be to use different bits for AES128 and
574 AES256, which would have avoided the problems from the beginning;
575 however, bits are scarce, so we can only do this in a new release
576 (not just a patchlevel) when we can change the SSL_CIPHER
577 definition to split the single 'unsigned long mask' bitmap into
578 multiple values to extend the available space.
582 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
584 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
585 (CVE-2006-4339) [Ben Laurie and Google Security Team]
587 *) Add AES IGE and biIGE modes.
590 *) Change the Unix randomness entropy gathering to use poll() when
591 possible instead of select(), since the latter has some
592 undesirable limitations.
593 [Darryl Miles via Richard Levitte and Bodo Moeller]
595 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
596 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
597 cannot be implicitly activated as part of, e.g., the "AES" alias.
598 However, please upgrade to OpenSSL 0.9.9[-dev] for
599 non-experimental use of the ECC ciphersuites to get TLS extension
600 support, which is required for curve and point format negotiation
601 to avoid potential handshake problems.
604 *) Disable rogue ciphersuites:
606 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
607 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
608 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
610 The latter two were purportedly from
611 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
614 Also deactivate the remaining ciphersuites from
615 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
616 unofficial, and the ID has long expired.
619 *) Fix RSA blinding Heisenbug (problems sometimes occured on
620 dual-core machines) and other potential thread-safety issues.
623 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
624 versions), which is now available for royalty-free use
625 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
626 Also, add Camellia TLS ciphersuites from RFC 4132.
628 To minimize changes between patchlevels in the OpenSSL 0.9.8
629 series, Camellia remains excluded from compilation unless OpenSSL
630 is configured with 'enable-camellia'.
633 *) Disable the padding bug check when compression is in use. The padding
634 bug check assumes the first packet is of even length, this is not
635 necessarily true if compresssion is enabled and can result in false
636 positives causing handshake failure. The actual bug test is ancient
637 code so it is hoped that implementations will either have fixed it by
638 now or any which still have the bug do not support compression.
641 Changes between 0.9.8a and 0.9.8b [04 May 2006]
643 *) When applying a cipher rule check to see if string match is an explicit
644 cipher suite and only match that one cipher suite if it is.
647 *) Link in manifests for VC++ if needed.
648 [Austin Ziegler <halostatue@gmail.com>]
650 *) Update support for ECC-based TLS ciphersuites according to
651 draft-ietf-tls-ecc-12.txt with proposed changes (but without
652 TLS extensions, which are supported starting with the 0.9.9
653 branch, not in the OpenSSL 0.9.8 branch).
656 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
657 opaque EVP_CIPHER_CTX handling.
660 *) Fixes and enhancements to zlib compression code. We now only use
661 "zlib1.dll" and use the default __cdecl calling convention on Win32
662 to conform with the standards mentioned here:
663 http://www.zlib.net/DLL_FAQ.txt
664 Static zlib linking now works on Windows and the new --with-zlib-include
665 --with-zlib-lib options to Configure can be used to supply the location
666 of the headers and library. Gracefully handle case where zlib library
670 *) Several fixes and enhancements to the OID generation code. The old code
671 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
672 handle numbers larger than ULONG_MAX, truncated printing and had a
673 non standard OBJ_obj2txt() behaviour.
676 *) Add support for building of engines under engine/ as shared libraries
677 under VC++ build system.
680 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
681 Hopefully, we will not see any false combination of paths any more.
684 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
686 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
687 (part of SSL_OP_ALL). This option used to disable the
688 countermeasure against man-in-the-middle protocol-version
689 rollback in the SSL 2.0 server implementation, which is a bad
690 idea. (CVE-2005-2969)
692 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
693 for Information Security, National Institute of Advanced Industrial
694 Science and Technology [AIST], Japan)]
696 *) Add two function to clear and return the verify parameter flags.
699 *) Keep cipherlists sorted in the source instead of sorting them at
700 runtime, thus removing the need for a lock.
703 *) Avoid some small subgroup attacks in Diffie-Hellman.
704 [Nick Mathewson and Ben Laurie]
706 *) Add functions for well-known primes.
709 *) Extended Windows CE support.
710 [Satoshi Nakamura and Andy Polyakov]
712 *) Initialize SSL_METHOD structures at compile time instead of during
713 runtime, thus removing the need for a lock.
716 *) Make PKCS7_decrypt() work even if no certificate is supplied by
717 attempting to decrypt each encrypted key in turn. Add support to
721 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
723 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
726 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
729 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
730 key into the same file any more.
733 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
736 *) Add -utf8 command line and config file option to 'ca'.
737 [Stefan <stf@udoma.org]
739 *) Removed the macro des_crypt(), as it seems to conflict with some
740 libraries. Use DES_crypt().
743 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
744 involves renaming the source and generated shared-libs for
745 both. The engines will accept the corrected or legacy ids
746 ('ncipher' and '4758_cca' respectively) when binding. NB,
747 this only applies when building 'shared'.
748 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
750 *) Add attribute functions to EVP_PKEY structure. Modify
751 PKCS12_create() to recognize a CSP name attribute and
752 use it. Make -CSP option work again in pkcs12 utility.
755 *) Add new functionality to the bn blinding code:
756 - automatic re-creation of the BN_BLINDING parameters after
757 a fixed number of uses (currently 32)
758 - add new function for parameter creation
759 - introduce flags to control the update behaviour of the
760 BN_BLINDING parameters
761 - hide BN_BLINDING structure
762 Add a second BN_BLINDING slot to the RSA structure to improve
763 performance when a single RSA object is shared among several
767 *) Add support for DTLS.
768 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
770 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
771 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
774 *) Remove buggy and incompletet DH cert support from
775 ssl/ssl_rsa.c and ssl/s3_both.c
778 *) Use SHA-1 instead of MD5 as the default digest algorithm for
779 the apps/openssl applications.
782 *) Compile clean with "-Wall -Wmissing-prototypes
783 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
784 DEBUG_SAFESTACK must also be set.
787 *) Change ./Configure so that certain algorithms can be disabled by default.
788 The new counterpiece to "no-xxx" is "enable-xxx".
790 The patented RC5 and MDC2 algorithms will now be disabled unless
791 "enable-rc5" and "enable-mdc2", respectively, are specified.
793 (IDEA remains enabled despite being patented. This is because IDEA
794 is frequently required for interoperability, and there is no license
795 fee for non-commercial use. As before, "no-idea" can be used to
796 avoid this algorithm.)
800 *) Add processing of proxy certificates (see RFC 3820). This work was
801 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
802 EGEE (Enabling Grids for E-science in Europe).
805 *) RC4 performance overhaul on modern architectures/implementations, such
806 as Intel P4, IA-64 and AMD64.
809 *) New utility extract-section.pl. This can be used specify an alternative
810 section number in a pod file instead of having to treat each file as
811 a separate case in Makefile. This can be done by adding two lines to the
814 =for comment openssl_section:XXX
816 The blank line is mandatory.
820 *) New arguments -certform, -keyform and -pass for s_client and s_server
821 to allow alternative format key and certificate files and passphrase
825 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
826 update associated structures and add various utility functions.
828 Add new policy related verify parameters, include policy checking in
829 standard verify code. Enhance 'smime' application with extra parameters
830 to support policy checking and print out.
833 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
834 Nehemiah processors. These extensions support AES encryption in hardware
835 as well as RNG (though RNG support is currently disabled).
836 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
838 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
841 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
842 [Andy Polyakov and a number of other people]
844 *) Improved PowerPC platform support. Most notably BIGNUM assembler
845 implementation contributed by IBM.
846 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
848 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
849 exponent rather than 'unsigned long'. There is a corresponding change to
850 the new 'rsa_keygen' element of the RSA_METHOD structure.
851 [Jelte Jansen, Geoff Thorpe]
853 *) Functionality for creating the initial serial number file is now
854 moved from CA.pl to the 'ca' utility with a new option -create_serial.
856 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
857 number file to 1, which is bound to cause problems. To avoid
858 the problems while respecting compatibility between different 0.9.7
859 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
860 CA.pl for serial number initialization. With the new release 0.9.8,
861 we can fix the problem directly in the 'ca' utility.)
864 *) Reduced header interdepencies by declaring more opaque objects in
865 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
866 give fewer recursive includes, which could break lazy source code - so
867 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
868 developers should define this symbol when building and using openssl to
869 ensure they track the recommended behaviour, interfaces, [etc], but
870 backwards-compatible behaviour prevails when this isn't defined.
873 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
876 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
877 This will generate a random key of the appropriate length based on the
878 cipher context. The EVP_CIPHER can provide its own random key generation
879 routine to support keys of a specific form. This is used in the des and
880 3des routines to generate a key of the correct parity. Update S/MIME
881 code to use new functions and hence generate correct parity DES keys.
882 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
883 valid (weak or incorrect parity).
886 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
887 as looking them up. This is useful when the verified structure may contain
888 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
889 present unless the new PKCS7_NO_CRL flag is asserted.
892 *) Extend ASN1 oid configuration module. It now additionally accepts the
895 shortName = some long name, 1.2.3.4
898 *) Reimplemented the BN_CTX implementation. There is now no more static
899 limitation on the number of variables it can handle nor the depth of the
900 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
901 information can now expand as required, and rather than having a single
902 static array of bignums, BN_CTX now uses a linked-list of such arrays
903 allowing it to expand on demand whilst maintaining the usefulness of
907 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
908 to allow all RSA operations to function using a single BN_CTX.
911 *) Preliminary support for certificate policy evaluation and checking. This
912 is initially intended to pass the tests outlined in "Conformance Testing
913 of Relying Party Client Certificate Path Processing Logic" v1.07.
916 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
917 remained unused and not that useful. A variety of other little bignum
918 tweaks and fixes have also been made continuing on from the audit (see
922 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
923 associated ASN1, EVP and SSL functions and old ASN1 macros.
926 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
927 and this should never fail. So the return value from the use of
928 BN_set_word() (which can fail due to needless expansion) is now deprecated;
929 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
932 *) BN_CTX_get() should return zero-valued bignums, providing the same
933 initialised value as BN_new().
934 [Geoff Thorpe, suggested by Ulf Möller]
936 *) Support for inhibitAnyPolicy certificate extension.
939 *) An audit of the BIGNUM code is underway, for which debugging code is
940 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
941 is considered valid when processing BIGNUMs, and causes execution to
942 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
943 further steps are taken to deliberately pollute unused data in BIGNUM
944 structures to try and expose faulty code further on. For now, openssl will
945 (in its default mode of operation) continue to tolerate the inconsistent
946 forms that it has tolerated in the past, but authors and packagers should
947 consider trying openssl and their own applications when compiled with
948 these debugging symbols defined. It will help highlight potential bugs in
949 their own code, and will improve the test coverage for OpenSSL itself. At
950 some point, these tighter rules will become openssl's default to improve
951 maintainability, though the assert()s and other overheads will remain only
952 in debugging configurations. See bn.h for more details.
953 [Geoff Thorpe, Nils Larsch, Ulf Möller]
955 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
956 that can only be obtained through BN_CTX_new() (which implicitly
957 initialises it). The presence of this function only made it possible
958 to overwrite an existing structure (and cause memory leaks).
961 *) Because of the callback-based approach for implementing LHASH as a
962 template type, lh_insert() adds opaque objects to hash-tables and
963 lh_doall() or lh_doall_arg() are typically used with a destructor callback
964 to clean up those corresponding objects before destroying the hash table
965 (and losing the object pointers). So some over-zealous constifications in
966 LHASH have been relaxed so that lh_insert() does not take (nor store) the
967 objects as "const" and the lh_doall[_arg] callback wrappers are not
968 prototyped to have "const" restrictions on the object pointers they are
969 given (and so aren't required to cast them away any more).
972 *) The tmdiff.h API was so ugly and minimal that our own timing utility
973 (speed) prefers to use its own implementation. The two implementations
974 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
975 its object type properly exposed (MS_TM) instead of casting to/from "char
976 *". This may still change yet if someone realises MS_TM and "ms_time_***"
977 aren't necessarily the greatest nomenclatures - but this is what was used
978 internally to the implementation so I've used that for now.
981 *) Ensure that deprecated functions do not get compiled when
982 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
983 the self-tests were still using deprecated key-generation functions so
984 these have been updated also.
987 *) Reorganise PKCS#7 code to separate the digest location functionality
988 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
989 New function PKCS7_set_digest() to set the digest type for PKCS#7
990 digestedData type. Add additional code to correctly generate the
991 digestedData type and add support for this type in PKCS7 initialization
995 *) New function PKCS7_set0_type_other() this initializes a PKCS7
996 structure of type "other".
999 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
1000 sure the loop does correctly stop and breaking ("division by zero")
1001 modulus operations are not performed. The (pre-generated) prime
1002 table crypto/bn/bn_prime.h was already correct, but it could not be
1003 re-generated on some platforms because of the "division by zero"
1004 situation in the script.
1005 [Ralf S. Engelschall]
1007 *) Update support for ECC-based TLS ciphersuites according to
1008 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
1009 SHA-1 now is only used for "small" curves (where the
1010 representation of a field element takes up to 24 bytes); for
1011 larger curves, the field element resulting from ECDH is directly
1012 used as premaster secret.
1013 [Douglas Stebila (Sun Microsystems Laboratories)]
1015 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
1016 curve secp160r1 to the tests.
1017 [Douglas Stebila (Sun Microsystems Laboratories)]
1019 *) Add the possibility to load symbols globally with DSO.
1020 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
1022 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
1023 control of the error stack.
1026 *) Add support for STORE in ENGINE.
1029 *) Add the STORE type. The intention is to provide a common interface
1030 to certificate and key stores, be they simple file-based stores, or
1031 HSM-type store, or LDAP stores, or...
1032 NOTE: The code is currently UNTESTED and isn't really used anywhere.
1035 *) Add a generic structure called OPENSSL_ITEM. This can be used to
1036 pass a list of arguments to any function as well as provide a way
1037 for a function to pass data back to the caller.
1040 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
1041 works like BUF_strdup() but can be used to duplicate a portion of
1042 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
1046 *) Add the function sk_find_ex() which works like sk_find(), but will
1047 return an index to an element even if an exact match couldn't be
1048 found. The index is guaranteed to point at the element where the
1049 searched-for key would be inserted to preserve sorting order.
1052 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
1053 takes an extra flags argument for optional functionality. Currently,
1054 the following flags are defined:
1056 OBJ_BSEARCH_VALUE_ON_NOMATCH
1057 This one gets OBJ_bsearch_ex() to return a pointer to the first
1058 element where the comparing function returns a negative or zero
1061 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
1062 This one gets OBJ_bsearch_ex() to return a pointer to the first
1063 element where the comparing function returns zero. This is useful
1064 if there are more than one element where the comparing function
1068 *) Make it possible to create self-signed certificates with 'openssl ca'
1069 in such a way that the self-signed certificate becomes part of the
1070 CA database and uses the same mechanisms for serial number generation
1071 as all other certificate signing. The new flag '-selfsign' enables
1072 this functionality. Adapt CA.sh and CA.pl.in.
1075 *) Add functionality to check the public key of a certificate request
1076 against a given private. This is useful to check that a certificate
1077 request can be signed by that key (self-signing).
1080 *) Make it possible to have multiple active certificates with the same
1081 subject in the CA index file. This is done only if the keyword
1082 'unique_subject' is set to 'no' in the main CA section (default
1083 if 'CA_default') of the configuration file. The value is saved
1084 with the database itself in a separate index attribute file,
1085 named like the index file with '.attr' appended to the name.
1088 *) Generate muti valued AVAs using '+' notation in config files for
1092 *) Support for nameConstraints certificate extension.
1095 *) Support for policyConstraints certificate extension.
1098 *) Support for policyMappings certificate extension.
1101 *) Make sure the default DSA_METHOD implementation only uses its
1102 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
1103 and change its own handlers to be NULL so as to remove unnecessary
1104 indirection. This lets alternative implementations fallback to the
1105 default implementation more easily.
1108 *) Support for directoryName in GeneralName related extensions
1112 *) Make it possible to link applications using Makefile.shared.
1113 Make that possible even when linking against static libraries!
1116 *) Support for single pass processing for S/MIME signing. This now
1117 means that S/MIME signing can be done from a pipe, in addition
1118 cleartext signing (multipart/signed type) is effectively streaming
1119 and the signed data does not need to be all held in memory.
1121 This is done with a new flag PKCS7_STREAM. When this flag is set
1122 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
1123 is done after the data is output (and digests calculated) in
1124 SMIME_write_PKCS7().
1127 *) Add full support for -rpath/-R, both in shared libraries and
1128 applications, at least on the platforms where it's known how
1132 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
1133 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
1134 will now compute a table of multiples of the generator that
1135 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
1136 faster (notably in the case of a single point multiplication,
1137 scalar * generator).
1138 [Nils Larsch, Bodo Moeller]
1140 *) IPv6 support for certificate extensions. The various extensions
1141 which use the IP:a.b.c.d can now take IPv6 addresses using the
1142 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
1146 *) Added an ENGINE that implements RSA by performing private key
1147 exponentiations with the GMP library. The conversions to and from
1148 GMP's mpz_t format aren't optimised nor are any montgomery forms
1149 cached, and on x86 it appears OpenSSL's own performance has caught up.
1150 However there are likely to be other architectures where GMP could
1151 provide a boost. This ENGINE is not built in by default, but it can be
1152 specified at Configure time and should be accompanied by the necessary
1153 linker additions, eg;
1154 ./config -DOPENSSL_USE_GMP -lgmp
1157 *) "openssl engine" will not display ENGINE/DSO load failure errors when
1158 testing availability of engines with "-t" - the old behaviour is
1159 produced by increasing the feature's verbosity with "-tt".
1162 *) ECDSA routines: under certain error conditions uninitialized BN objects
1163 could be freed. Solution: make sure initialization is performed early
1164 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
1168 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
1169 and DH_METHOD (eg. by ENGINE implementations) to override the normal
1170 software implementations. For DSA and DH, parameter generation can
1171 also be overriden by providing the appropriate method callbacks.
1174 *) Change the "progress" mechanism used in key-generation and
1175 primality testing to functions that take a new BN_GENCB pointer in
1176 place of callback/argument pairs. The new API functions have "_ex"
1177 postfixes and the older functions are reimplemented as wrappers for
1178 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
1179 declarations of the old functions to help (graceful) attempts to
1180 migrate to the new functions. Also, the new key-generation API
1181 functions operate on a caller-supplied key-structure and return
1182 success/failure rather than returning a key or NULL - this is to
1183 help make "keygen" another member function of RSA_METHOD etc.
1185 Example for using the new callback interface:
1187 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
1191 BN_GENCB_set(&my_cb, my_callback, my_arg);
1193 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
1194 /* For the meaning of a, b in calls to my_callback(), see the
1195 * documentation of the function that calls the callback.
1196 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
1197 * my_callback should return 1 if it wants BN_is_prime_ex()
1198 * to continue, or 0 to stop.
1203 *) Change the ZLIB compression method to be stateful, and make it
1204 available to TLS with the number defined in
1205 draft-ietf-tls-compression-04.txt.
1208 *) Add the ASN.1 structures and functions for CertificatePair, which
1209 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
1211 CertificatePair ::= SEQUENCE {
1212 forward [0] Certificate OPTIONAL,
1213 reverse [1] Certificate OPTIONAL,
1214 -- at least one of the pair shall be present -- }
1216 Also implement the PEM functions to read and write certificate
1217 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
1219 This needed to be defined, mostly for the sake of the LDAP
1220 attribute crossCertificatePair, but may prove useful elsewhere as
1224 *) Make it possible to inhibit symlinking of shared libraries in
1225 Makefile.shared, for Cygwin's sake.
1228 *) Extend the BIGNUM API by creating a function
1229 void BN_set_negative(BIGNUM *a, int neg);
1230 and a macro that behave like
1231 int BN_is_negative(const BIGNUM *a);
1233 to avoid the need to access 'a->neg' directly in applications.
1236 *) Implement fast modular reduction for pseudo-Mersenne primes
1237 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
1238 EC_GROUP_new_curve_GFp() will now automatically use this
1240 [Nils Larsch <nla@trustcenter.de>]
1242 *) Add new lock type (CRYPTO_LOCK_BN).
1245 *) Change the ENGINE framework to automatically load engines
1246 dynamically from specific directories unless they could be
1247 found to already be built in or loaded. Move all the
1248 current engines except for the cryptodev one to a new
1250 The engines in engines/ are built as shared libraries if
1251 the "shared" options was given to ./Configure or ./config.
1252 Otherwise, they are inserted in libcrypto.a.
1253 /usr/local/ssl/engines is the default directory for dynamic
1254 engines, but that can be overriden at configure time through
1255 the usual use of --prefix and/or --openssldir, and at run
1256 time with the environment variable OPENSSL_ENGINES.
1257 [Geoff Thorpe and Richard Levitte]
1259 *) Add Makefile.shared, a helper makefile to build shared
1260 libraries. Addapt Makefile.org.
1263 *) Add version info to Win32 DLLs.
1264 [Peter 'Luna' Runestig" <peter@runestig.com>]
1266 *) Add new 'medium level' PKCS#12 API. Certificates and keys
1267 can be added using this API to created arbitrary PKCS#12
1268 files while avoiding the low level API.
1270 New options to PKCS12_create(), key or cert can be NULL and
1271 will then be omitted from the output file. The encryption
1272 algorithm NIDs can be set to -1 for no encryption, the mac
1273 iteration count can be set to 0 to omit the mac.
1275 Enhance pkcs12 utility by making the -nokeys and -nocerts
1276 options work when creating a PKCS#12 file. New option -nomac
1277 to omit the mac, NONE can be set for an encryption algorithm.
1278 New code is modified to use the enhanced PKCS12_create()
1279 instead of the low level API.
1282 *) Extend ASN1 encoder to support indefinite length constructed
1283 encoding. This can output sequences tags and octet strings in
1284 this form. Modify pk7_asn1.c to support indefinite length
1285 encoding. This is experimental and needs additional code to
1286 be useful, such as an ASN1 bio and some enhanced streaming
1289 Extend template encode functionality so that tagging is passed
1290 down to the template encoder.
1293 *) Let 'openssl req' fail if an argument to '-newkey' is not
1294 recognized instead of using RSA as a default.
1297 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
1298 As these are not official, they are not included in "ALL";
1299 the "ECCdraft" ciphersuite group alias can be used to select them.
1300 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
1302 *) Add ECDH engine support.
1303 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
1305 *) Add ECDH in new directory crypto/ecdh/.
1306 [Douglas Stebila (Sun Microsystems Laboratories)]
1308 *) Let BN_rand_range() abort with an error after 100 iterations
1309 without success (which indicates a broken PRNG).
1312 *) Change BN_mod_sqrt() so that it verifies that the input value
1313 is really the square of the return value. (Previously,
1314 BN_mod_sqrt would show GIGO behaviour.)
1317 *) Add named elliptic curves over binary fields from X9.62, SECG,
1318 and WAP/WTLS; add OIDs that were still missing.
1320 [Sheueling Chang Shantz and Douglas Stebila
1321 (Sun Microsystems Laboratories)]
1323 *) Extend the EC library for elliptic curves over binary fields
1324 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
1327 EC_GF2m_simple_method
1331 EC_GROUP_new_curve_GF2m
1332 EC_GROUP_set_curve_GF2m
1333 EC_GROUP_get_curve_GF2m
1334 EC_POINT_set_affine_coordinates_GF2m
1335 EC_POINT_get_affine_coordinates_GF2m
1336 EC_POINT_set_compressed_coordinates_GF2m
1338 Point compression for binary fields is disabled by default for
1339 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
1342 As binary polynomials are represented as BIGNUMs, various members
1343 of the EC_GROUP and EC_POINT data structures can be shared
1344 between the implementations for prime fields and binary fields;
1345 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
1346 are essentially identical to their ..._GFp counterparts.
1347 (For simplicity, the '..._GFp' prefix has been dropped from
1348 various internal method names.)
1350 An internal 'field_div' method (similar to 'field_mul' and
1351 'field_sqr') has been added; this is used only for binary fields.
1353 [Sheueling Chang Shantz and Douglas Stebila
1354 (Sun Microsystems Laboratories)]
1356 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
1357 through methods ('mul', 'precompute_mult').
1359 The generic implementations (now internally called 'ec_wNAF_mul'
1360 and 'ec_wNAF_precomputed_mult') remain the default if these
1361 methods are undefined.
1363 [Sheueling Chang Shantz and Douglas Stebila
1364 (Sun Microsystems Laboratories)]
1366 *) New function EC_GROUP_get_degree, which is defined through
1367 EC_METHOD. For curves over prime fields, this returns the bit
1368 length of the modulus.
1370 [Sheueling Chang Shantz and Douglas Stebila
1371 (Sun Microsystems Laboratories)]
1373 *) New functions EC_GROUP_dup, EC_POINT_dup.
1374 (These simply call ..._new and ..._copy).
1376 [Sheueling Chang Shantz and Douglas Stebila
1377 (Sun Microsystems Laboratories)]
1379 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
1380 Polynomials are represented as BIGNUMs (where the sign bit is not
1381 used) in the following functions [macros]:
1384 BN_GF2m_sub [= BN_GF2m_add]
1385 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
1386 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
1387 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
1389 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
1390 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
1391 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
1392 BN_GF2m_cmp [= BN_ucmp]
1394 (Note that only the 'mod' functions are actually for fields GF(2^m).
1395 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
1397 For some functions, an the irreducible polynomial defining a
1398 field can be given as an 'unsigned int[]' with strictly
1399 decreasing elements giving the indices of those bits that are set;
1400 i.e., p[] represents the polynomial
1401 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
1403 p[0] > p[1] > ... > p[k] = 0.
1404 This applies to the following functions:
1409 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
1410 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
1412 BN_GF2m_mod_sqrt_arr
1413 BN_GF2m_mod_solve_quad_arr
1417 Conversion can be performed by the following functions:
1422 bntest.c has additional tests for binary polynomial arithmetic.
1424 Two implementations for BN_GF2m_mod_div() are available.
1425 The default algorithm simply uses BN_GF2m_mod_inv() and
1426 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
1427 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
1428 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
1430 [Sheueling Chang Shantz and Douglas Stebila
1431 (Sun Microsystems Laboratories)]
1433 *) Add new error code 'ERR_R_DISABLED' that can be used when some
1434 functionality is disabled at compile-time.
1435 [Douglas Stebila <douglas.stebila@sun.com>]
1437 *) Change default behaviour of 'openssl asn1parse' so that more
1438 information is visible when viewing, e.g., a certificate:
1440 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
1441 mode the content of non-printable OCTET STRINGs is output in a
1442 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
1443 avoid the appearance of a printable string.
1444 [Nils Larsch <nla@trustcenter.de>]
1446 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
1448 EC_GROUP_set_asn1_flag()
1449 EC_GROUP_get_asn1_flag()
1450 EC_GROUP_set_point_conversion_form()
1451 EC_GROUP_get_point_conversion_form()
1452 These control ASN1 encoding details:
1453 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
1454 has been set to OPENSSL_EC_NAMED_CURVE.
1455 - Points are encoded in uncompressed form by default; options for
1456 asn1_for are as for point2oct, namely
1457 POINT_CONVERSION_COMPRESSED
1458 POINT_CONVERSION_UNCOMPRESSED
1459 POINT_CONVERSION_HYBRID
1461 Also add 'seed' and 'seed_len' members to EC_GROUP with access
1464 EC_GROUP_get0_seed()
1465 EC_GROUP_get_seed_len()
1466 This is used only for ASN1 purposes (so far).
1467 [Nils Larsch <nla@trustcenter.de>]
1469 *) Add 'field_type' member to EC_METHOD, which holds the NID
1470 of the appropriate field type OID. The new function
1471 EC_METHOD_get_field_type() returns this value.
1472 [Nils Larsch <nla@trustcenter.de>]
1477 EC_POINT_point2hex()
1478 EC_POINT_hex2point()
1479 providing useful interfaces to EC_POINT_point2oct() and
1480 EC_POINT_oct2point().
1481 [Nils Larsch <nla@trustcenter.de>]
1483 *) Change internals of the EC library so that the functions
1484 EC_GROUP_set_generator()
1485 EC_GROUP_get_generator()
1486 EC_GROUP_get_order()
1487 EC_GROUP_get_cofactor()
1488 are implemented directly in crypto/ec/ec_lib.c and not dispatched
1489 to methods, which would lead to unnecessary code duplication when
1490 adding different types of curves.
1491 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
1493 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
1494 arithmetic, and such that modified wNAFs are generated
1495 (which avoid length expansion in many cases).
1498 *) Add a function EC_GROUP_check_discriminant() (defined via
1499 EC_METHOD) that verifies that the curve discriminant is non-zero.
1501 Add a function EC_GROUP_check() that makes some sanity tests
1502 on a EC_GROUP, its generator and order. This includes
1503 EC_GROUP_check_discriminant().
1504 [Nils Larsch <nla@trustcenter.de>]
1506 *) Add ECDSA in new directory crypto/ecdsa/.
1508 Add applications 'openssl ecparam' and 'openssl ecdsa'
1509 (these are based on 'openssl dsaparam' and 'openssl dsa').
1511 ECDSA support is also included in various other files across the
1512 library. Most notably,
1513 - 'openssl req' now has a '-newkey ecdsa:file' option;
1514 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
1515 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
1516 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
1517 them suitable for ECDSA where domain parameters must be
1518 extracted before the specific public key;
1519 - ECDSA engine support has been added.
1520 [Nils Larsch <nla@trustcenter.de>]
1522 *) Include some named elliptic curves, and add OIDs from X9.62,
1523 SECG, and WAP/WTLS. Each curve can be obtained from the new
1525 EC_GROUP_new_by_curve_name(),
1526 and the list of available named curves can be obtained with
1527 EC_get_builtin_curves().
1528 Also add a 'curve_name' member to EC_GROUP objects, which can be
1530 EC_GROUP_set_curve_name()
1531 EC_GROUP_get_curve_name()
1532 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
1534 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
1535 was actually never needed) and in BN_mul(). The removal in BN_mul()
1536 required a small change in bn_mul_part_recursive() and the addition
1537 of the functions bn_cmp_part_words(), bn_sub_part_words() and
1538 bn_add_part_words(), which do the same thing as bn_cmp_words(),
1539 bn_sub_words() and bn_add_words() except they take arrays with
1543 Changes between 0.9.7m and 0.9.7n [xx XXX xxxx]
1545 *) In the SSL/TLS server implementation, be strict about session ID
1546 context matching (which matters if an application uses a single
1547 external cache for different purposes). Previously,
1548 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
1549 set. This did ensure strict client verification, but meant that,
1550 with applications using a single external cache for quite
1551 different requirements, clients could circumvent ciphersuite
1552 restrictions for a given session ID context by starting a session
1553 in a different context.
1556 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
1558 *) Cleanse PEM buffers before freeing them since they may contain
1560 [Benjamin Bennett <ben@psc.edu>]
1562 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1563 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1564 authentication-only ciphersuites.
1567 *) Since AES128 and AES256 share a single mask bit in the logic of
1568 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1569 kludge to work properly if AES128 is available and AES256 isn't.
1572 *) Expand security boundary to match 1.1.1 module.
1575 *) Remove redundant features: hash file source, editing of test vectors
1576 modify fipsld to use external fips_premain.c signature.
1579 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
1580 run algorithm test programs.
1583 *) Make algorithm test programs more tolerant of whitespace.
1586 *) Have SSL/TLS server implementation tolerate "mismatched" record
1587 protocol version while receiving ClientHello even if the
1588 ClientHello is fragmented. (The server can't insist on the
1589 particular protocol version it has chosen before the ServerHello
1590 message has informed the client about his choice.)
1593 *) Load error codes if they are not already present instead of using a
1594 static variable. This allows them to be cleanly unloaded and reloaded.
1597 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
1599 *) Introduce limits to prevent malicious keys being able to
1600 cause a denial of service. (CVE-2006-2940)
1601 [Steve Henson, Bodo Moeller]
1603 *) Fix ASN.1 parsing of certain invalid structures that can result
1604 in a denial of service. (CVE-2006-2937) [Steve Henson]
1606 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1607 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1609 *) Fix SSL client code which could crash if connecting to a
1610 malicious SSLv2 server. (CVE-2006-4343)
1611 [Tavis Ormandy and Will Drewry, Google Security Team]
1613 *) Change ciphersuite string processing so that an explicit
1614 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
1615 will no longer include "AES128-SHA"), and any other similar
1616 ciphersuite (same bitmap) from *other* protocol versions (so that
1617 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
1618 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
1619 changes from 0.9.8b and 0.9.8d.
1622 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
1624 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1625 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1627 *) Change the Unix randomness entropy gathering to use poll() when
1628 possible instead of select(), since the latter has some
1629 undesirable limitations.
1630 [Darryl Miles via Richard Levitte and Bodo Moeller]
1632 *) Disable rogue ciphersuites:
1634 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1635 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1636 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1638 The latter two were purportedly from
1639 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1642 Also deactive the remaining ciphersuites from
1643 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1644 unofficial, and the ID has long expired.
1647 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1648 dual-core machines) and other potential thread-safety issues.
1651 Changes between 0.9.7i and 0.9.7j [04 May 2006]
1653 *) Adapt fipsld and the build system to link against the validated FIPS
1654 module in FIPS mode.
1657 *) Fixes for VC++ 2005 build under Windows.
1660 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
1661 from a Windows bash shell such as MSYS. It is autodetected from the
1662 "config" script when run from a VC++ environment. Modify standard VC++
1663 build to use fipscanister.o from the GNU make build.
1666 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
1668 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
1669 The value now differs depending on if you build for FIPS or not.
1670 BEWARE! A program linked with a shared FIPSed libcrypto can't be
1671 safely run with a non-FIPSed libcrypto, as it may crash because of
1672 the difference induced by this change.
1675 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
1677 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1678 (part of SSL_OP_ALL). This option used to disable the
1679 countermeasure against man-in-the-middle protocol-version
1680 rollback in the SSL 2.0 server implementation, which is a bad
1681 idea. (CVE-2005-2969)
1683 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1684 for Information Security, National Institute of Advanced Industrial
1685 Science and Technology [AIST], Japan)]
1687 *) Minimal support for X9.31 signatures and PSS padding modes. This is
1688 mainly for FIPS compliance and not fully integrated at this stage.
1691 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
1692 the exponentiation using a fixed-length exponent. (Otherwise,
1693 the information leaked through timing could expose the secret key
1694 after many signatures; cf. Bleichenbacher's attack on DSA with
1698 *) Make a new fixed-window mod_exp implementation the default for
1699 RSA, DSA, and DH private-key operations so that the sequence of
1700 squares and multiplies and the memory access pattern are
1701 independent of the particular secret key. This will mitigate
1702 cache-timing and potential related attacks.
1704 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
1705 and this is automatically used by BN_mod_exp_mont() if the new flag
1706 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
1707 will use this BN flag for private exponents unless the flag
1708 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
1709 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
1711 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
1713 *) Change the client implementation for SSLv23_method() and
1714 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
1715 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
1716 (Previously, the SSL 2.0 backwards compatible Client Hello
1717 message format would be used even with SSL_OP_NO_SSLv2.)
1720 *) Add support for smime-type MIME parameter in S/MIME messages which some
1724 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
1725 a threadsafe manner. Modify rsa code to use new function and add calls
1726 to dsa and dh code (which had race conditions before).
1729 *) Include the fixed error library code in the C error file definitions
1730 instead of fixing them up at runtime. This keeps the error code
1731 structures constant.
1734 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
1736 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
1739 *) Fixes for newer kerberos headers. NB: the casts are needed because
1740 the 'length' field is signed on one version and unsigned on another
1741 with no (?) obvious way to tell the difference, without these VC++
1742 complains. Also the "definition" of FAR (blank) is no longer included
1743 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
1744 some needed definitions.
1747 *) Undo Cygwin change.
1750 *) Added support for proxy certificates according to RFC 3820.
1751 Because they may be a security thread to unaware applications,
1752 they must be explicitely allowed in run-time. See
1753 docs/HOWTO/proxy_certificates.txt for further information.
1756 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
1758 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
1759 server and client random values. Previously
1760 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
1761 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
1763 This change has negligible security impact because:
1765 1. Server and client random values still have 24 bytes of pseudo random
1768 2. Server and client random values are sent in the clear in the initial
1771 3. The master secret is derived using the premaster secret (48 bytes in
1772 size for static RSA ciphersuites) as well as client server and random
1775 The OpenSSL team would like to thank the UK NISCC for bringing this issue
1778 [Stephen Henson, reported by UK NISCC]
1780 *) Use Windows randomness collection on Cygwin.
1783 *) Fix hang in EGD/PRNGD query when communication socket is closed
1784 prematurely by EGD/PRNGD.
1785 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
1787 *) Prompt for pass phrases when appropriate for PKCS12 input format.
1790 *) Back-port of selected performance improvements from development
1791 branch, as well as improved support for PowerPC platforms.
1794 *) Add lots of checks for memory allocation failure, error codes to indicate
1795 failure and freeing up memory if a failure occurs.
1796 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
1798 *) Add new -passin argument to dgst.
1801 *) Perform some character comparisons of different types in X509_NAME_cmp:
1802 this is needed for some certificates that reencode DNs into UTF8Strings
1803 (in violation of RFC3280) and can't or wont issue name rollover
1807 *) Make an explicit check during certificate validation to see that
1808 the CA setting in each certificate on the chain is correct. As a
1809 side effect always do the following basic checks on extensions,
1810 not just when there's an associated purpose to the check:
1812 - if there is an unhandled critical extension (unless the user
1813 has chosen to ignore this fault)
1814 - if the path length has been exceeded (if one is set at all)
1815 - that certain extensions fit the associated purpose (if one has
1819 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
1821 *) Avoid a race condition when CRLs are checked in a multi threaded
1822 environment. This would happen due to the reordering of the revoked
1823 entries during signature checking and serial number lookup. Now the
1824 encoding is cached and the serial number sort performed under a lock.
1825 Add new STACK function sk_is_sorted().
1828 *) Add Delta CRL to the extension code.
1831 *) Various fixes to s3_pkt.c so alerts are sent properly.
1832 [David Holmes <d.holmes@f5.com>]
1834 *) Reduce the chances of duplicate issuer name and serial numbers (in
1835 violation of RFC3280) using the OpenSSL certificate creation utilities.
1836 This is done by creating a random 64 bit value for the initial serial
1837 number when a serial number file is created or when a self signed
1838 certificate is created using 'openssl req -x509'. The initial serial
1839 number file is created using 'openssl x509 -next_serial' in CA.pl
1840 rather than being initialized to 1.
1843 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
1845 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
1846 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
1847 [Joe Orton, Steve Henson]
1849 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
1851 [Joe Orton, Steve Henson]
1853 *) Make it possible to have multiple active certificates with the same
1854 subject in the CA index file. This is done only if the keyword
1855 'unique_subject' is set to 'no' in the main CA section (default
1856 if 'CA_default') of the configuration file. The value is saved
1857 with the database itself in a separate index attribute file,
1858 named like the index file with '.attr' appended to the name.
1861 *) X509 verify fixes. Disable broken certificate workarounds when
1862 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
1863 keyUsage extension present. Don't accept CRLs with unhandled critical
1864 extensions: since verify currently doesn't process CRL extensions this
1865 rejects a CRL with *any* critical extensions. Add new verify error codes
1869 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
1870 A clarification of RFC2560 will require the use of OCTET STRINGs and
1871 some implementations cannot handle the current raw format. Since OpenSSL
1872 copies and compares OCSP nonces as opaque blobs without any attempt at
1873 parsing them this should not create any compatibility issues.
1876 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
1877 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
1878 this HMAC (and other) operations are several times slower than OpenSSL
1882 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
1883 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1885 *) Use the correct content when signing type "other".
1888 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
1890 *) Fix various bugs revealed by running the NISCC test suite:
1892 Stop out of bounds reads in the ASN1 code when presented with
1893 invalid tags (CVE-2003-0543 and CVE-2003-0544).
1895 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
1897 If verify callback ignores invalid public key errors don't try to check
1898 certificate signature with the NULL public key.
1902 *) New -ignore_err option in ocsp application to stop the server
1903 exiting on the first error in a request.
1906 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
1907 if the server requested one: as stated in TLS 1.0 and SSL 3.0
1911 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
1912 extra data after the compression methods not only for TLS 1.0
1913 but also for SSL 3.0 (as required by the specification).
1914 [Bodo Moeller; problem pointed out by Matthias Loepfe]
1916 *) Change X509_certificate_type() to mark the key as exported/exportable
1917 when it's 512 *bits* long, not 512 bytes.
1920 *) Change AES_cbc_encrypt() so it outputs exact multiple of
1921 blocks during encryption.
1924 *) Various fixes to base64 BIO and non blocking I/O. On write
1925 flushes were not handled properly if the BIO retried. On read
1926 data was not being buffered properly and had various logic bugs.
1927 This also affects blocking I/O when the data being decoded is a
1931 *) Various S/MIME bugfixes and compatibility changes:
1932 output correct application/pkcs7 MIME type if
1933 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
1934 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
1935 of files as .eml work). Correctly handle very long lines in MIME
1939 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
1941 *) Countermeasure against the Klima-Pokorny-Rosa extension of
1942 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
1943 a protocol version number mismatch like a decryption error
1944 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
1947 *) Turn on RSA blinding by default in the default implementation
1948 to avoid a timing attack. Applications that don't want it can call
1949 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
1950 They would be ill-advised to do so in most cases.
1951 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
1953 *) Change RSA blinding code so that it works when the PRNG is not
1954 seeded (in this case, the secret RSA exponent is abused as
1955 an unpredictable seed -- if it is not unpredictable, there
1956 is no point in blinding anyway). Make RSA blinding thread-safe
1957 by remembering the creator's thread ID in rsa->blinding and
1958 having all other threads use local one-time blinding factors
1959 (this requires more computation than sharing rsa->blinding, but
1960 avoids excessive locking; and if an RSA object is not shared
1961 between threads, blinding will still be very fast).
1964 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
1965 ENGINE as defaults for all supported algorithms irrespective of
1966 the 'flags' parameter. 'flags' is now honoured, so applications
1967 should make sure they are passing it correctly.
1970 *) Target "mingw" now allows native Windows code to be generated in
1971 the Cygwin environment as well as with the MinGW compiler.
1974 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
1976 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
1977 via timing by performing a MAC computation even if incorrrect
1978 block cipher padding has been found. This is a countermeasure
1979 against active attacks where the attacker has to distinguish
1980 between bad padding and a MAC verification error. (CVE-2003-0078)
1982 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
1983 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
1984 Martin Vuagnoux (EPFL, Ilion)]
1986 *) Make the no-err option work as intended. The intention with no-err
1987 is not to have the whole error stack handling routines removed from
1988 libcrypto, it's only intended to remove all the function name and
1989 reason texts, thereby removing some of the footprint that may not
1990 be interesting if those errors aren't displayed anyway.
1992 NOTE: it's still possible for any application or module to have it's
1993 own set of error texts inserted. The routines are there, just not
1994 used by default when no-err is given.
1997 *) Add support for FreeBSD on IA64.
1998 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
2000 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
2001 Kerberos function mit_des_cbc_cksum(). Before this change,
2002 the value returned by DES_cbc_cksum() was like the one from
2003 mit_des_cbc_cksum(), except the bytes were swapped.
2004 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
2006 *) Allow an application to disable the automatic SSL chain building.
2007 Before this a rather primitive chain build was always performed in
2008 ssl3_output_cert_chain(): an application had no way to send the
2009 correct chain if the automatic operation produced an incorrect result.
2011 Now the chain builder is disabled if either:
2013 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
2015 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
2017 The reasoning behind this is that an application would not want the
2018 auto chain building to take place if extra chain certificates are
2019 present and it might also want a means of sending no additional
2020 certificates (for example the chain has two certificates and the
2024 *) Add the possibility to build without the ENGINE framework.
2025 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2027 *) Under Win32 gmtime() can return NULL: check return value in
2028 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
2031 *) DSA routines: under certain error conditions uninitialized BN objects
2032 could be freed. Solution: make sure initialization is performed early
2033 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
2034 Nils Larsch <nla@trustcenter.de> via PR#459)
2037 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
2038 checked on reconnect on the client side, therefore session resumption
2039 could still fail with a "ssl session id is different" error. This
2040 behaviour is masked when SSL_OP_ALL is used due to
2041 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
2042 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2043 followup to PR #377.
2046 *) IA-32 assembler support enhancements: unified ELF targets, support
2047 for SCO/Caldera platforms, fix for Cygwin shared build.
2050 *) Add support for FreeBSD on sparc64. As a consequence, support for
2051 FreeBSD on non-x86 processors is separate from x86 processors on
2052 the config script, much like the NetBSD support.
2053 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
2055 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
2057 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
2060 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
2061 code (06) was taken as the first octet of the session ID and the last
2062 octet was ignored consequently. As a result SSLv2 client side session
2063 caching could not have worked due to the session ID mismatch between
2065 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2069 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
2070 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
2074 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
2075 seems that in spite of existing for more than a year, many application
2076 author have done nothing to provide the necessary callbacks, which
2077 means that this particular engine will not work properly anywhere.
2078 This is a very unfortunate situation which forces us, in the name
2079 of usability, to give the hw_ncipher.c a static lock, which is part
2081 NOTE: This is for the 0.9.7 series ONLY. This hack will never
2082 appear in 0.9.8 or later. We EXPECT application authors to have
2083 dealt properly with this when 0.9.8 is released (unless we actually
2084 make such changes in the libcrypto locking code that changes will
2085 have to be made anyway).
2088 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
2089 octets have been read, EOF or an error occurs. Without this change
2090 some truncated ASN1 structures will not produce an error.
2093 *) Disable Heimdal support, since it hasn't been fully implemented.
2094 Still give the possibility to force the use of Heimdal, but with
2095 warnings and a request that patches get sent to openssl-dev.
2098 *) Add the VC-CE target, introduce the WINCE sysname, and add
2099 INSTALL.WCE and appropriate conditionals to make it build.
2100 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2102 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
2103 cygssl-x.y.z.dll, where x, y and z are the major, minor and
2104 edit numbers of the version.
2105 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
2107 *) Introduce safe string copy and catenation functions
2108 (BUF_strlcpy() and BUF_strlcat()).
2109 [Ben Laurie (CHATS) and Richard Levitte]
2111 *) Avoid using fixed-size buffers for one-line DNs.
2112 [Ben Laurie (CHATS)]
2114 *) Add BUF_MEM_grow_clean() to avoid information leakage when
2115 resizing buffers containing secrets, and use where appropriate.
2116 [Ben Laurie (CHATS)]
2118 *) Avoid using fixed size buffers for configuration file location.
2119 [Ben Laurie (CHATS)]
2121 *) Avoid filename truncation for various CA files.
2122 [Ben Laurie (CHATS)]
2124 *) Use sizeof in preference to magic numbers.
2125 [Ben Laurie (CHATS)]
2127 *) Avoid filename truncation in cert requests.
2128 [Ben Laurie (CHATS)]
2130 *) Add assertions to check for (supposedly impossible) buffer
2132 [Ben Laurie (CHATS)]
2134 *) Don't cache truncated DNS entries in the local cache (this could
2135 potentially lead to a spoofing attack).
2136 [Ben Laurie (CHATS)]
2138 *) Fix various buffers to be large enough for hex/decimal
2139 representations in a platform independent manner.
2140 [Ben Laurie (CHATS)]
2142 *) Add CRYPTO_realloc_clean() to avoid information leakage when
2143 resizing buffers containing secrets, and use where appropriate.
2144 [Ben Laurie (CHATS)]
2146 *) Add BIO_indent() to avoid much slightly worrying code to do
2148 [Ben Laurie (CHATS)]
2150 *) Convert sprintf()/BIO_puts() to BIO_printf().
2151 [Ben Laurie (CHATS)]
2153 *) buffer_gets() could terminate with the buffer only half
2155 [Ben Laurie (CHATS)]
2157 *) Add assertions to prevent user-supplied crypto functions from
2158 overflowing internal buffers by having large block sizes, etc.
2159 [Ben Laurie (CHATS)]
2161 *) New OPENSSL_assert() macro (similar to assert(), but enabled
2163 [Ben Laurie (CHATS)]
2165 *) Eliminate unused copy of key in RC4.
2166 [Ben Laurie (CHATS)]
2168 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
2169 [Ben Laurie (CHATS)]
2171 *) Fix off-by-one error in EGD path.
2172 [Ben Laurie (CHATS)]
2174 *) If RANDFILE path is too long, ignore instead of truncating.
2175 [Ben Laurie (CHATS)]
2177 *) Eliminate unused and incorrectly sized X.509 structure
2179 [Ben Laurie (CHATS)]
2181 *) Eliminate unused and dangerous function knumber().
2182 [Ben Laurie (CHATS)]
2184 *) Eliminate unused and dangerous structure, KSSL_ERR.
2185 [Ben Laurie (CHATS)]
2187 *) Protect against overlong session ID context length in an encoded
2188 session object. Since these are local, this does not appear to be
2190 [Ben Laurie (CHATS)]
2192 *) Change from security patch (see 0.9.6e below) that did not affect
2193 the 0.9.6 release series:
2195 Remote buffer overflow in SSL3 protocol - an attacker could
2196 supply an oversized master key in Kerberos-enabled versions.
2198 [Ben Laurie (CHATS)]
2200 *) Change the SSL kerb5 codes to match RFC 2712.
2203 *) Make -nameopt work fully for req and add -reqopt switch.
2204 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
2206 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
2207 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
2209 *) Make sure tests can be performed even if the corresponding algorithms
2210 have been removed entirely. This was also the last step to make
2211 OpenSSL compilable with DJGPP under all reasonable conditions.
2212 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
2214 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
2215 to allow version independent disabling of normally unselected ciphers,
2216 which may be activated as a side-effect of selecting a single cipher.
2218 (E.g., cipher list string "RSA" enables ciphersuites that are left
2219 out of "ALL" because they do not provide symmetric encryption.
2220 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
2221 [Lutz Jaenicke, Bodo Moeller]
2223 *) Add appropriate support for separate platform-dependent build
2224 directories. The recommended way to make a platform-dependent
2225 build directory is the following (tested on Linux), maybe with
2228 # Place yourself outside of the OpenSSL source tree. In
2229 # this example, the environment variable OPENSSL_SOURCE
2230 # is assumed to contain the absolute OpenSSL source directory.
2231 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
2232 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
2233 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
2234 mkdir -p `dirname $F`
2235 ln -s $OPENSSL_SOURCE/$F $F
2238 To be absolutely sure not to disturb the source tree, a "make clean"
2239 is a good thing. If it isn't successfull, don't worry about it,
2240 it probably means the source directory is very clean.
2243 *) Make sure any ENGINE control commands make local copies of string
2244 pointers passed to them whenever necessary. Otherwise it is possible
2245 the caller may have overwritten (or deallocated) the original string
2246 data when a later ENGINE operation tries to use the stored values.
2247 [Götz Babin-Ebell <babinebell@trustcenter.de>]
2249 *) Improve diagnostics in file reading and command-line digests.
2250 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
2252 *) Add AES modes CFB and OFB to the object database. Correct an
2253 error in AES-CFB decryption.
2256 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
2257 allows existing EVP_CIPHER_CTX structures to be reused after
2258 calling EVP_*Final(). This behaviour is used by encryption
2259 BIOs and some applications. This has the side effect that
2260 applications must explicitly clean up cipher contexts with
2261 EVP_CIPHER_CTX_cleanup() or they will leak memory.
2264 *) Check the values of dna and dnb in bn_mul_recursive before calling
2265 bn_mul_comba (a non zero value means the a or b arrays do not contain
2266 n2 elements) and fallback to bn_mul_normal if either is not zero.
2269 *) Fix escaping of non-ASCII characters when using the -subj option
2270 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
2273 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
2274 form for "surname", serialNumber has no short form.
2275 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
2276 therefore remove "mail" short name for "internet 7".
2277 The OID for unique identifiers in X509 certificates is
2278 x500UniqueIdentifier, not uniqueIdentifier.
2279 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
2282 *) Add an "init" command to the ENGINE config module and auto initialize
2283 ENGINEs. Without any "init" command the ENGINE will be initialized
2284 after all ctrl commands have been executed on it. If init=1 the
2285 ENGINE is initailized at that point (ctrls before that point are run
2286 on the uninitialized ENGINE and after on the initialized one). If
2287 init=0 then the ENGINE will not be iniatialized at all.
2290 *) Fix the 'app_verify_callback' interface so that the user-defined
2291 argument is actually passed to the callback: In the
2292 SSL_CTX_set_cert_verify_callback() prototype, the callback
2293 declaration has been changed from
2296 int (*cb)(X509_STORE_CTX *,void *);
2297 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
2298 i=s->ctx->app_verify_callback(&ctx)
2299 has been changed into
2300 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
2302 To update applications using SSL_CTX_set_cert_verify_callback(),
2303 a dummy argument can be added to their callback functions.
2304 [D. K. Smetters <smetters@parc.xerox.com>]
2306 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
2307 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
2309 *) Add and OPENSSL_LOAD_CONF define which will cause
2310 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
2311 This allows older applications to transparently support certain
2312 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
2313 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
2314 load the config file and OPENSSL_add_all_algorithms_conf() which will
2315 always load it have also been added.
2318 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
2319 Adjust NIDs and EVP layer.
2320 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2322 *) Config modules support in openssl utility.
2324 Most commands now load modules from the config file,
2325 though in a few (such as version) this isn't done
2326 because it couldn't be used for anything.
2328 In the case of ca and req the config file used is
2329 the same as the utility itself: that is the -config
2330 command line option can be used to specify an
2334 *) Move default behaviour from OPENSSL_config(). If appname is NULL
2335 use "openssl_conf" if filename is NULL use default openssl config file.
2338 *) Add an argument to OPENSSL_config() to allow the use of an alternative
2339 config section name. Add a new flag to tolerate a missing config file
2340 and move code to CONF_modules_load_file().
2343 *) Support for crypto accelerator cards from Accelerated Encryption
2344 Processing, www.aep.ie. (Use engine 'aep')
2345 The support was copied from 0.9.6c [engine] and adapted/corrected
2346 to work with the new engine framework.
2347 [AEP Inc. and Richard Levitte]
2349 *) Support for SureWare crypto accelerator cards from Baltimore
2350 Technologies. (Use engine 'sureware')
2351 The support was copied from 0.9.6c [engine] and adapted
2352 to work with the new engine framework.
2355 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
2356 make the newer ENGINE framework commands for the CHIL engine work.
2357 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
2359 *) Make it possible to produce shared libraries on ReliantUNIX.
2360 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
2362 *) Add the configuration target debug-linux-ppro.
2363 Make 'openssl rsa' use the general key loading routines
2364 implemented in apps.c, and make those routines able to
2365 handle the key format FORMAT_NETSCAPE and the variant
2367 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2369 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
2370 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2372 *) Add -keyform to rsautl, and document -engine.
2373 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
2375 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
2376 BIO_R_NO_SUCH_FILE error code rather than the generic
2377 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
2380 *) Add new functions
2382 ERR_peek_last_error_line
2383 ERR_peek_last_error_line_data.
2384 These are similar to
2387 ERR_peek_error_line_data,
2388 but report on the latest error recorded rather than the first one
2389 still in the error queue.
2390 [Ben Laurie, Bodo Moeller]
2392 *) default_algorithms option in ENGINE config module. This allows things
2394 default_algorithms = ALL
2395 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
2398 *) Prelminary ENGINE config module.
2401 *) New experimental application configuration code.
2404 *) Change the AES code to follow the same name structure as all other
2405 symmetric ciphers, and behave the same way. Move everything to
2406 the directory crypto/aes, thereby obsoleting crypto/rijndael.
2407 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2409 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
2410 [Ben Laurie and Theo de Raadt]
2412 *) Add option to output public keys in req command.
2413 [Massimiliano Pala madwolf@openca.org]
2415 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
2416 (up to about 10% better than before for P-192 and P-224).
2419 *) New functions/macros
2421 SSL_CTX_set_msg_callback(ctx, cb)
2422 SSL_CTX_set_msg_callback_arg(ctx, arg)
2423 SSL_set_msg_callback(ssl, cb)
2424 SSL_set_msg_callback_arg(ssl, arg)
2426 to request calling a callback function
2428 void cb(int write_p, int version, int content_type,
2429 const void *buf, size_t len, SSL *ssl, void *arg)
2431 whenever a protocol message has been completely received
2432 (write_p == 0) or sent (write_p == 1). Here 'version' is the
2433 protocol version according to which the SSL library interprets
2434 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
2435 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
2436 the content type as defined in the SSL 3.0/TLS 1.0 protocol
2437 specification (change_cipher_spec(20), alert(21), handshake(22)).
2438 'buf' and 'len' point to the actual message, 'ssl' to the
2439 SSL object, and 'arg' is the application-defined value set by
2440 SSL[_CTX]_set_msg_callback_arg().
2442 'openssl s_client' and 'openssl s_server' have new '-msg' options
2443 to enable a callback that displays all protocol messages.
2446 *) Change the shared library support so shared libraries are built as
2447 soon as the corresponding static library is finished, and thereby get
2448 openssl and the test programs linked against the shared library.
2449 This still only happens when the keyword "shard" has been given to
2450 the configuration scripts.
2452 NOTE: shared library support is still an experimental thing, and
2453 backward binary compatibility is still not guaranteed.
2454 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
2456 *) Add support for Subject Information Access extension.
2457 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2459 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
2460 additional bytes when new memory had to be allocated, not just
2461 when reusing an existing buffer.
2464 *) New command line and configuration option 'utf8' for the req command.
2465 This allows field values to be specified as UTF8 strings.
2468 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
2469 runs for the former and machine-readable output for the latter.
2472 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
2473 of the e-mail address in the DN (i.e., it will go into a certificate
2474 extension only). The new configuration file option 'email_in_dn = no'
2475 has the same effect.
2476 [Massimiliano Pala madwolf@openca.org]
2478 *) Change all functions with names starting with des_ to be starting
2479 with DES_ instead. Add wrappers that are compatible with libdes,
2480 but are named _ossl_old_des_*. Finally, add macros that map the
2481 des_* symbols to the corresponding _ossl_old_des_* if libdes
2482 compatibility is desired. If OpenSSL 0.9.6c compatibility is
2483 desired, the des_* symbols will be mapped to DES_*, with one
2486 Since we provide two compatibility mappings, the user needs to
2487 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
2488 compatibility is desired. The default (i.e., when that macro
2489 isn't defined) is OpenSSL 0.9.6c compatibility.
2491 There are also macros that enable and disable the support of old
2492 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
2493 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
2494 are defined, the default will apply: to support the old des routines.
2496 In either case, one must include openssl/des.h to get the correct
2497 definitions. Do not try to just include openssl/des_old.h, that
2500 NOTE: This is a major break of an old API into a new one. Software
2501 authors are encouraged to switch to the DES_ style functions. Some
2502 time in the future, des_old.h and the libdes compatibility functions
2503 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
2504 default), and then completely removed.
2507 *) Test for certificates which contain unsupported critical extensions.
2508 If such a certificate is found during a verify operation it is
2509 rejected by default: this behaviour can be overridden by either
2510 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
2511 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
2512 X509_supported_extension() has also been added which returns 1 if a
2513 particular extension is supported.
2516 *) Modify the behaviour of EVP cipher functions in similar way to digests
2517 to retain compatibility with existing code.
2520 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
2521 compatibility with existing code. In particular the 'ctx' parameter does
2522 not have to be to be initialized before the call to EVP_DigestInit() and
2523 it is tidied up after a call to EVP_DigestFinal(). New function
2524 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
2525 EVP_MD_CTX_copy() changed to not require the destination to be
2526 initialized valid and new function EVP_MD_CTX_copy_ex() added which
2527 requires the destination to be valid.
2529 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
2530 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
2533 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
2534 so that complete 'Handshake' protocol structures are kept in memory
2535 instead of overwriting 'msg_type' and 'length' with 'body' data.
2538 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
2539 [Massimo Santin via Richard Levitte]
2541 *) Major restructuring to the underlying ENGINE code. This includes
2542 reduction of linker bloat, separation of pure "ENGINE" manipulation
2543 (initialisation, etc) from functionality dealing with implementations
2544 of specific crypto iterfaces. This change also introduces integrated
2545 support for symmetric ciphers and digest implementations - so ENGINEs
2546 can now accelerate these by providing EVP_CIPHER and EVP_MD
2547 implementations of their own. This is detailed in crypto/engine/README
2548 as it couldn't be adequately described here. However, there are a few
2549 API changes worth noting - some RSA, DSA, DH, and RAND functions that
2550 were changed in the original introduction of ENGINE code have now
2551 reverted back - the hooking from this code to ENGINE is now a good
2552 deal more passive and at run-time, operations deal directly with
2553 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
2554 dereferencing through an ENGINE pointer any more. Also, the ENGINE
2555 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
2556 they were not being used by the framework as there is no concept of a
2557 BIGNUM_METHOD and they could not be generalised to the new
2558 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
2559 ENGINE_cpy() has been removed as it cannot be consistently defined in
2563 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
2566 *) Change mkdef.pl to sort symbols that get the same entry number,
2567 and make sure the automatically generated functions ERR_load_*
2568 become part of libeay.num as well.
2571 *) New function SSL_renegotiate_pending(). This returns true once
2572 renegotiation has been requested (either SSL_renegotiate() call
2573 or HelloRequest/ClientHello receveived from the peer) and becomes
2574 false once a handshake has been completed.
2575 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
2576 sends a HelloRequest, but does not ensure that a handshake takes
2577 place. SSL_renegotiate_pending() is useful for checking if the
2578 client has followed the request.)
2581 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
2582 By default, clients may request session resumption even during
2583 renegotiation (if session ID contexts permit); with this option,
2584 session resumption is possible only in the first handshake.
2586 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
2587 more bits available for options that should not be part of
2588 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
2591 *) Add some demos for certificate and certificate request creation.
2594 *) Make maximum certificate chain size accepted from the peer application
2595 settable (SSL*_get/set_max_cert_list()), as proposed by
2596 "Douglas E. Engert" <deengert@anl.gov>.
2599 *) Add support for shared libraries for Unixware-7
2600 (Boyd Lynn Gerber <gerberb@zenez.com>).
2603 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
2604 be done prior to destruction. Use this to unload error strings from
2605 ENGINEs that load their own error strings. NB: This adds two new API
2606 functions to "get" and "set" this destroy handler in an ENGINE.
2609 *) Alter all existing ENGINE implementations (except "openssl" and
2610 "openbsd") to dynamically instantiate their own error strings. This
2611 makes them more flexible to be built both as statically-linked ENGINEs
2612 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
2613 Also, add stub code to each that makes building them as self-contained
2614 shared-libraries easier (see README.ENGINE).
2617 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
2618 implementations into applications that are completely implemented in
2619 self-contained shared-libraries. The "dynamic" ENGINE exposes control
2620 commands that can be used to configure what shared-library to load and
2621 to control aspects of the way it is handled. Also, made an update to
2622 the README.ENGINE file that brings its information up-to-date and
2623 provides some information and instructions on the "dynamic" ENGINE
2624 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
2627 *) Make it possible to unload ranges of ERR strings with a new
2628 "ERR_unload_strings" function.
2631 *) Add a copy() function to EVP_MD.
2634 *) Make EVP_MD routines take a context pointer instead of just the
2635 md_data void pointer.
2638 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
2639 that the digest can only process a single chunk of data
2640 (typically because it is provided by a piece of
2641 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
2642 is only going to provide a single chunk of data, and hence the
2643 framework needn't accumulate the data for oneshot drivers.
2646 *) As with "ERR", make it possible to replace the underlying "ex_data"
2647 functions. This change also alters the storage and management of global
2648 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
2649 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
2650 index counters. The API functions that use this state have been changed
2651 to take a "class_index" rather than pointers to the class's local STACK
2652 and counter, and there is now an API function to dynamically create new
2653 classes. This centralisation allows us to (a) plug a lot of the
2654 thread-safety problems that existed, and (b) makes it possible to clean
2655 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
2656 such data would previously have always leaked in application code and
2657 workarounds were in place to make the memory debugging turn a blind eye
2658 to it. Application code that doesn't use this new function will still
2659 leak as before, but their memory debugging output will announce it now
2660 rather than letting it slide.
2662 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
2663 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
2664 has a return value to indicate success or failure.
2667 *) Make it possible to replace the underlying "ERR" functions such that the
2668 global state (2 LHASH tables and 2 locks) is only used by the "default"
2669 implementation. This change also adds two functions to "get" and "set"
2670 the implementation prior to it being automatically set the first time
2671 any other ERR function takes place. Ie. an application can call "get",
2672 pass the return value to a module it has just loaded, and that module
2673 can call its own "set" function using that value. This means the
2674 module's "ERR" operations will use (and modify) the error state in the
2675 application and not in its own statically linked copy of OpenSSL code.
2678 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
2679 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
2680 the operation, and provides a more encapsulated way for external code
2681 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
2682 to use these functions rather than manually incrementing the counts.
2684 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
2687 *) Add EVP test program.
2690 *) Add symmetric cipher support to ENGINE. Expect the API to change!
2693 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
2694 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
2695 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
2696 These allow a CRL to be built without having to access X509_CRL fields
2697 directly. Modify 'ca' application to use new functions.
2700 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
2701 bug workarounds. Rollback attack detection is a security feature.
2702 The problem will only arise on OpenSSL servers when TLSv1 is not
2703 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
2704 Software authors not wanting to support TLSv1 will have special reasons
2705 for their choice and can explicitly enable this option.
2706 [Bodo Moeller, Lutz Jaenicke]
2708 *) Rationalise EVP so it can be extended: don't include a union of
2709 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
2710 (similar to those existing for EVP_CIPHER_CTX).
2715 EVP_MD_CTX_init(&md); /* new function call */
2716 EVP_DigestInit(&md, EVP_sha1());
2717 EVP_DigestUpdate(&md, in, len);
2718 EVP_DigestFinal(&md, out, NULL);
2719 EVP_MD_CTX_cleanup(&md); /* new function call */
2723 *) Make DES key schedule conform to the usual scheme, as well as
2724 correcting its structure. This means that calls to DES functions
2725 now have to pass a pointer to a des_key_schedule instead of a
2726 plain des_key_schedule (which was actually always a pointer
2729 des_key_schedule ks;
2731 des_set_key_checked(..., &ks);
2732 des_ncbc_encrypt(..., &ks, ...);
2734 (Note that a later change renames 'des_...' into 'DES_...'.)
2737 *) Initial reduction of linker bloat: the use of some functions, such as
2738 PEM causes large amounts of unused functions to be linked in due to
2739 poor organisation. For example pem_all.c contains every PEM function
2740 which has a knock on effect of linking in large amounts of (unused)
2741 ASN1 code. Grouping together similar functions and splitting unrelated
2742 functions prevents this.
2745 *) Cleanup of EVP macros.
2748 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
2749 correct _ecb suffix.
2752 *) Add initial OCSP responder support to ocsp application. The
2753 revocation information is handled using the text based index
2754 use by the ca application. The responder can either handle
2755 requests generated internally, supplied in files (for example
2756 via a CGI script) or using an internal minimal server.
2759 *) Add configuration choices to get zlib compression for TLS.
2762 *) Changes to Kerberos SSL for RFC 2712 compliance:
2763 1. Implemented real KerberosWrapper, instead of just using
2764 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
2765 2. Implemented optional authenticator field of KerberosWrapper.
2767 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
2768 and authenticator structs; see crypto/krb5/.
2770 Generalized Kerberos calls to support multiple Kerberos libraries.
2771 [Vern Staats <staatsvr@asc.hpc.mil>,
2772 Jeffrey Altman <jaltman@columbia.edu>
2773 via Richard Levitte]
2775 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
2776 already does with RSA. testdsa.h now has 'priv_key/pub_key'
2777 values for each of the key sizes rather than having just
2778 parameters (and 'speed' generating keys each time).
2781 *) Speed up EVP routines.
2784 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
2785 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
2786 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
2787 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
2789 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
2790 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
2791 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
2794 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
2796 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
2799 *) Added the OS2-EMX target.
2800 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
2802 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
2803 to support NCONF routines in extension code. New function CONF_set_nconf()
2804 to allow functions which take an NCONF to also handle the old LHASH
2805 structure: this means that the old CONF compatible routines can be
2806 retained (in particular wrt extensions) without having to duplicate the
2807 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
2810 *) Enhance the general user interface with mechanisms for inner control
2811 and with possibilities to have yes/no kind of prompts.
2814 *) Change all calls to low level digest routines in the library and
2815 applications to use EVP. Add missing calls to HMAC_cleanup() and
2816 don't assume HMAC_CTX can be copied using memcpy().
2817 [Verdon Walker <VWalker@novell.com>, Steve Henson]
2819 *) Add the possibility to control engines through control names but with
2820 arbitrary arguments instead of just a string.
2821 Change the key loaders to take a UI_METHOD instead of a callback
2822 function pointer. NOTE: this breaks binary compatibility with earlier
2823 versions of OpenSSL [engine].
2824 Adapt the nCipher code for these new conditions and add a card insertion
2828 *) Enhance the general user interface with mechanisms to better support
2829 dialog box interfaces, application-defined prompts, the possibility
2830 to use defaults (for example default passwords from somewhere else)
2831 and interrupts/cancellations.
2834 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
2835 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
2838 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
2839 tidy up some unnecessarily weird code in 'sk_new()').
2840 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
2842 *) Change the key loading routines for ENGINEs to use the same kind
2843 callback (pem_password_cb) as all other routines that need this
2847 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
2848 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
2849 than this minimum value is recommended.
2852 *) New random seeder for OpenVMS, using the system process statistics
2853 that are easily reachable.
2856 *) Windows apparently can't transparently handle global
2857 variables defined in DLLs. Initialisations such as:
2859 const ASN1_ITEM *it = &ASN1_INTEGER_it;
2861 wont compile. This is used by the any applications that need to
2862 declare their own ASN1 modules. This was fixed by adding the option
2863 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
2864 needed for static libraries under Win32.
2867 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
2868 setting of purpose and trust fields. New X509_STORE trust and
2869 purpose functions and tidy up setting in other SSL functions.
2872 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
2873 structure. These are inherited by X509_STORE_CTX when it is
2874 initialised. This allows various defaults to be set in the
2875 X509_STORE structure (such as flags for CRL checking and custom
2876 purpose or trust settings) for functions which only use X509_STORE_CTX
2877 internally such as S/MIME.
2879 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
2880 trust settings if they are not set in X509_STORE. This allows X509_STORE
2881 purposes and trust (in S/MIME for example) to override any set by default.
2883 Add command line options for CRL checking to smime, s_client and s_server
2887 *) Initial CRL based revocation checking. If the CRL checking flag(s)
2888 are set then the CRL is looked up in the X509_STORE structure and
2889 its validity and signature checked, then if the certificate is found
2890 in the CRL the verify fails with a revoked error.
2892 Various new CRL related callbacks added to X509_STORE_CTX structure.
2894 Command line options added to 'verify' application to support this.
2896 This needs some additional work, such as being able to handle multiple
2897 CRLs with different times, extension based lookup (rather than just
2898 by subject name) and ultimately more complete V2 CRL extension
2902 *) Add a general user interface API (crypto/ui/). This is designed
2903 to replace things like des_read_password and friends (backward
2904 compatibility functions using this new API are provided).
2905 The purpose is to remove prompting functions from the DES code
2906 section as well as provide for prompting through dialog boxes in
2907 a window system and the like.
2910 *) Add "ex_data" support to ENGINE so implementations can add state at a
2911 per-structure level rather than having to store it globally.
2914 *) Make it possible for ENGINE structures to be copied when retrieved by
2915 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
2916 This causes the "original" ENGINE structure to act like a template,
2917 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
2918 operational state can be localised to each ENGINE structure, despite the
2919 fact they all share the same "methods". New ENGINE structures returned in
2920 this case have no functional references and the return value is the single
2921 structural reference. This matches the single structural reference returned
2922 by ENGINE_by_id() normally, when it is incremented on the pre-existing
2926 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
2927 needs to match any other type at all we need to manually clear the
2931 *) Changes to the "openssl engine" utility to include;
2932 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
2933 about an ENGINE's available control commands.
2934 - executing control commands from command line arguments using the
2935 '-pre' and '-post' switches. '-post' is only used if '-t' is
2936 specified and the ENGINE is successfully initialised. The syntax for
2937 the individual commands are colon-separated, for example;
2938 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
2941 *) New dynamic control command support for ENGINEs. ENGINEs can now
2942 declare their own commands (numbers), names (strings), descriptions,
2943 and input types for run-time discovery by calling applications. A
2944 subset of these commands are implicitly classed as "executable"
2945 depending on their input type, and only these can be invoked through
2946 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
2947 can be based on user input, config files, etc). The distinction is
2948 that "executable" commands cannot return anything other than a boolean
2949 result and can only support numeric or string input, whereas some
2950 discoverable commands may only be for direct use through
2951 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
2952 pointers, or other custom uses. The "executable" commands are to
2953 support parameterisations of ENGINE behaviour that can be
2954 unambiguously defined by ENGINEs and used consistently across any
2955 OpenSSL-based application. Commands have been added to all the
2956 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
2957 control over shared-library paths without source code alterations.
2960 *) Changed all ENGINE implementations to dynamically allocate their
2961 ENGINEs rather than declaring them statically. Apart from this being
2962 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
2963 this also allows the implementations to compile without using the
2964 internal engine_int.h header.
2967 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
2968 'const' value. Any code that should be able to modify a RAND_METHOD
2969 should already have non-const pointers to it (ie. they should only
2970 modify their own ones).
2973 *) Made a variety of little tweaks to the ENGINE code.
2974 - "atalla" and "ubsec" string definitions were moved from header files
2975 to C code. "nuron" string definitions were placed in variables
2976 rather than hard-coded - allowing parameterisation of these values
2977 later on via ctrl() commands.
2978 - Removed unused "#if 0"'d code.
2979 - Fixed engine list iteration code so it uses ENGINE_free() to release
2980 structural references.
2981 - Constified the RAND_METHOD element of ENGINE structures.
2982 - Constified various get/set functions as appropriate and added
2983 missing functions (including a catch-all ENGINE_cpy that duplicates
2984 all ENGINE values onto a new ENGINE except reference counts/state).
2985 - Removed NULL parameter checks in get/set functions. Setting a method
2986 or function to NULL is a way of cancelling out a previously set
2987 value. Passing a NULL ENGINE parameter is just plain stupid anyway
2988 and doesn't justify the extra error symbols and code.
2989 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
2990 flags from engine_int.h to engine.h.
2991 - Changed prototypes for ENGINE handler functions (init(), finish(),
2992 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
2995 *) Implement binary inversion algorithm for BN_mod_inverse in addition
2996 to the algorithm using long division. The binary algorithm can be
2997 used only if the modulus is odd. On 32-bit systems, it is faster
2998 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
2999 roughly 5-15% for 256-bit moduli), so we use it only for moduli
3000 up to 450 bits. In 64-bit environments, the binary algorithm
3001 appears to be advantageous for much longer moduli; here we use it
3002 for moduli up to 2048 bits.
3005 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
3006 could not support the combine flag in choice fields.
3009 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
3010 extensions from a certificate request to the certificate.
3013 *) Allow multiple 'certopt' and 'nameopt' options to be separated
3014 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
3015 file: this allows the display of the certificate about to be
3016 signed to be customised, to allow certain fields to be included
3017 or excluded and extension details. The old system didn't display
3018 multicharacter strings properly, omitted fields not in the policy
3019 and couldn't display additional details such as extensions.
3022 *) Function EC_POINTs_mul for multiple scalar multiplication
3023 of an arbitrary number of elliptic curve points
3024 \sum scalars[i]*points[i],
3025 optionally including the generator defined for the EC_GROUP:
3026 scalar*generator + \sum scalars[i]*points[i].
3028 EC_POINT_mul is a simple wrapper function for the typical case
3029 that the point list has just one item (besides the optional
3033 *) First EC_METHODs for curves over GF(p):
3035 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
3036 operations and provides various method functions that can also
3037 operate with faster implementations of modular arithmetic.
3039 EC_GFp_mont_method() reuses most functions that are part of
3040 EC_GFp_simple_method, but uses Montgomery arithmetic.
3042 [Bodo Moeller; point addition and point doubling
3043 implementation directly derived from source code provided by
3044 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
3046 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
3047 crypto/ec/ec_lib.c):
3049 Curves are EC_GROUP objects (with an optional group generator)
3050 based on EC_METHODs that are built into the library.
3052 Points are EC_POINT objects based on EC_GROUP objects.
3054 Most of the framework would be able to handle curves over arbitrary
3055 finite fields, but as there are no obvious types for fields other
3056 than GF(p), some functions are limited to that for now.
3059 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
3060 that the file contains a complete HTTP response.
3063 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
3064 change the def and num file printf format specifier from "%-40sXXX"
3065 to "%-39s XXX". The latter will always guarantee a space after the
3066 field while the former will cause them to run together if the field
3067 is 40 of more characters long.
3070 *) Constify the cipher and digest 'method' functions and structures
3071 and modify related functions to take constant EVP_MD and EVP_CIPHER
3075 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
3076 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
3079 *) Modify EVP_Digest*() routines so they now return values. Although the
3080 internal software routines can never fail additional hardware versions
3084 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
3086 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
3087 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
3090 ERR_R_NESTED_ASN1_ERROR
3092 ERR_R_MISSING_ASN1_EOS
3093 were 4 .. 9, conflicting with
3094 ERR_LIB_RSA (= ERR_R_RSA_LIB)
3096 ERR_LIB_PEM (= ERR_R_PEM_LIB).
3097 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
3099 Add new error code 'ERR_R_INTERNAL_ERROR'.
3102 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
3106 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
3107 sets the subject name for a new request or supersedes the
3108 subject name in a given request. Formats that can be parsed are
3109 'CN=Some Name, OU=myOU, C=IT'
3111 'CN=Some Name/OU=myOU/C=IT'.
3113 Add options '-batch' and '-verbose' to 'openssl req'.
3114 [Massimiliano Pala <madwolf@hackmasters.net>]
3116 *) Introduce the possibility to access global variables through
3117 functions on platform were that's the best way to handle exporting
3118 global variables in shared libraries. To enable this functionality,
3119 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
3120 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
3121 is normally done by Configure or something similar).
3123 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
3124 in the source file (foo.c) like this:
3126 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
3127 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
3129 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
3130 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
3132 OPENSSL_DECLARE_GLOBAL(int,foo);
3133 #define foo OPENSSL_GLOBAL_REF(foo)
3134 OPENSSL_DECLARE_GLOBAL(double,bar);
3135 #define bar OPENSSL_GLOBAL_REF(bar)
3137 The #defines are very important, and therefore so is including the
3138 header file everywhere where the defined globals are used.
3140 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
3141 of ASN.1 items, but that structure is a bit different.
3143 The largest change is in util/mkdef.pl which has been enhanced with
3144 better and easier to understand logic to choose which symbols should
3145 go into the Windows .def files as well as a number of fixes and code
3146 cleanup (among others, algorithm keywords are now sorted
3147 lexicographically to avoid constant rewrites).
3150 *) In BN_div() keep a copy of the sign of 'num' before writing the
3151 result to 'rm' because if rm==num the value will be overwritten
3152 and produce the wrong result if 'num' is negative: this caused
3153 problems with BN_mod() and BN_nnmod().
3156 *) Function OCSP_request_verify(). This checks the signature on an
3157 OCSP request and verifies the signer certificate. The signer
3158 certificate is just checked for a generic purpose and OCSP request
3162 *) Add OCSP_check_validity() function to check the validity of OCSP
3163 responses. OCSP responses are prepared in real time and may only
3164 be a few seconds old. Simply checking that the current time lies
3165 between thisUpdate and nextUpdate max reject otherwise valid responses
3166 caused by either OCSP responder or client clock inaccuracy. Instead
3167 we allow thisUpdate and nextUpdate to fall within a certain period of
3168 the current time. The age of the response can also optionally be
3169 checked. Two new options -validity_period and -status_age added to
3173 *) If signature or public key algorithm is unrecognized print out its
3174 OID rather that just UNKNOWN.
3177 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
3178 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
3179 ID to be generated from the issuer certificate alone which can then be
3180 passed to OCSP_id_issuer_cmp().
3183 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
3184 ASN1 modules to export functions returning ASN1_ITEM pointers
3185 instead of the ASN1_ITEM structures themselves. This adds several
3186 new macros which allow the underlying ASN1 function/structure to
3187 be accessed transparently. As a result code should not use ASN1_ITEM
3188 references directly (such as &X509_it) but instead use the relevant
3189 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
3190 use of the new ASN1 code on platforms where exporting structures
3191 is problematical (for example in shared libraries) but exporting
3192 functions returning pointers to structures is not.
3195 *) Add support for overriding the generation of SSL/TLS session IDs.
3196 These callbacks can be registered either in an SSL_CTX or per SSL.
3197 The purpose of this is to allow applications to control, if they wish,
3198 the arbitrary values chosen for use as session IDs, particularly as it
3199 can be useful for session caching in multiple-server environments. A
3200 command-line switch for testing this (and any client code that wishes
3201 to use such a feature) has been added to "s_server".
3202 [Geoff Thorpe, Lutz Jaenicke]
3204 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
3205 of the form '#if defined(...) || defined(...) || ...' and
3206 '#if !defined(...) && !defined(...) && ...'. This also avoids
3207 the growing number of special cases it was previously handling.
3210 *) Make all configuration macros available for application by making
3211 sure they are available in opensslconf.h, by giving them names starting
3212 with "OPENSSL_" to avoid conflicts with other packages and by making
3213 sure e_os2.h will cover all platform-specific cases together with
3215 Additionally, it is now possible to define configuration/platform-
3216 specific names (called "system identities"). In the C code, these
3217 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
3218 macro with the name beginning with "OPENSSL_SYS_", which is determined
3219 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
3223 *) New option -set_serial to 'req' and 'x509' this allows the serial
3224 number to use to be specified on the command line. Previously self
3225 signed certificates were hard coded with serial number 0 and the
3226 CA options of 'x509' had to use a serial number in a file which was
3230 *) New options to 'ca' utility to support V2 CRL entry extensions.
3231 Currently CRL reason, invalidity date and hold instruction are
3232 supported. Add new CRL extensions to V3 code and some new objects.
3235 *) New function EVP_CIPHER_CTX_set_padding() this is used to
3236 disable standard block padding (aka PKCS#5 padding) in the EVP
3237 API, which was previously mandatory. This means that the data is
3238 not padded in any way and so the total length much be a multiple
3239 of the block size, otherwise an error occurs.
3242 *) Initial (incomplete) OCSP SSL support.
3245 *) New function OCSP_parse_url(). This splits up a URL into its host,
3246 port and path components: primarily to parse OCSP URLs. New -url
3247 option to ocsp utility.
3250 *) New nonce behavior. The return value of OCSP_check_nonce() now
3251 reflects the various checks performed. Applications can decide
3252 whether to tolerate certain situations such as an absent nonce
3253 in a response when one was present in a request: the ocsp application
3254 just prints out a warning. New function OCSP_add1_basic_nonce()
3255 this is to allow responders to include a nonce in a response even if
3256 the request is nonce-less.
3259 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
3260 skipped when using openssl x509 multiple times on a single input file,
3261 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
3264 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
3265 set string type: to handle setting ASN1_TIME structures. Fix ca
3266 utility to correctly initialize revocation date of CRLs.
3269 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
3270 the clients preferred ciphersuites and rather use its own preferences.
3271 Should help to work around M$ SGC (Server Gated Cryptography) bug in
3272 Internet Explorer by ensuring unchanged hash method during stepup.
3273 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
3276 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
3277 to aes and add a new 'exist' option to print out symbols that don't
3281 *) Additional options to ocsp utility to allow flags to be set and
3282 additional certificates supplied.
3285 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
3286 OCSP client a number of certificate to only verify the response
3290 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
3291 handle the new API. Currently only ECB, CBC modes supported. Add new
3294 Add TLS AES ciphersuites as described in RFC3268, "Advanced
3295 Encryption Standard (AES) Ciphersuites for Transport Layer
3296 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
3297 not enabled by default and were not part of the "ALL" ciphersuite
3298 alias because they were not yet official; they could be
3299 explicitly requested by specifying the "AESdraft" ciphersuite
3300 group alias. In the final release of OpenSSL 0.9.7, the group
3301 alias is called "AES" and is part of "ALL".)
3302 [Ben Laurie, Steve Henson, Bodo Moeller]
3304 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
3305 request to response.
3308 *) Functions for OCSP responders. OCSP_request_onereq_count(),
3309 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
3310 extract information from a certificate request. OCSP_response_create()
3311 creates a response and optionally adds a basic response structure.
3312 OCSP_basic_add1_status() adds a complete single response to a basic
3313 response and returns the OCSP_SINGLERESP structure just added (to allow
3314 extensions to be included for example). OCSP_basic_add1_cert() adds a
3315 certificate to a basic response and OCSP_basic_sign() signs a basic
3316 response with various flags. New helper functions ASN1_TIME_check()
3317 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
3318 (converts ASN1_TIME to GeneralizedTime).
3321 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
3322 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
3323 structure from a certificate. X509_pubkey_digest() digests the public_key
3324 contents: this is used in various key identifiers.
3327 *) Make sk_sort() tolerate a NULL argument.
3328 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
3330 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
3331 passed by the function are trusted implicitly. If any of them signed the
3332 response then it is assumed to be valid and is not verified.
3335 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
3336 to data. This was previously part of the PKCS7 ASN1 code. This
3337 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
3338 [Steve Henson, reported by Kenneth R. Robinette
3339 <support@securenetterm.com>]
3341 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
3342 routines: without these tracing memory leaks is very painful.
3343 Fix leaks in PKCS12 and PKCS7 routines.
3346 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
3347 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
3348 effectively meant GeneralizedTime would never be used. Now it
3349 is initialised to -1 but X509_time_adj() now has to check the value
3350 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
3351 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
3352 [Steve Henson, reported by Kenneth R. Robinette
3353 <support@securenetterm.com>]
3355 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
3356 result in a zero length in the ASN1_INTEGER structure which was
3357 not consistent with the structure when d2i_ASN1_INTEGER() was used
3358 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
3359 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
3360 where it did not print out a minus for negative ASN1_INTEGER.
3363 *) Add summary printout to ocsp utility. The various functions which
3364 convert status values to strings have been renamed to:
3365 OCSP_response_status_str(), OCSP_cert_status_str() and
3366 OCSP_crl_reason_str() and are no longer static. New options
3367 to verify nonce values and to disable verification. OCSP response
3368 printout format cleaned up.
3371 *) Add additional OCSP certificate checks. These are those specified
3372 in RFC2560. This consists of two separate checks: the CA of the
3373 certificate being checked must either be the OCSP signer certificate
3374 or the issuer of the OCSP signer certificate. In the latter case the
3375 OCSP signer certificate must contain the OCSP signing extended key
3376 usage. This check is performed by attempting to match the OCSP
3377 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
3378 in the OCSP_CERTID structures of the response.
3381 *) Initial OCSP certificate verification added to OCSP_basic_verify()
3382 and related routines. This uses the standard OpenSSL certificate
3383 verify routines to perform initial checks (just CA validity) and
3384 to obtain the certificate chain. Then additional checks will be
3385 performed on the chain. Currently the root CA is checked to see
3386 if it is explicitly trusted for OCSP signing. This is used to set
3387 a root CA as a global signing root: that is any certificate that
3388 chains to that CA is an acceptable OCSP signing certificate.
3391 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
3392 extensions from a separate configuration file.
3393 As when reading extensions from the main configuration file,
3394 the '-extensions ...' option may be used for specifying the
3396 [Massimiliano Pala <madwolf@comune.modena.it>]
3398 *) New OCSP utility. Allows OCSP requests to be generated or
3399 read. The request can be sent to a responder and the output
3400 parsed, outputed or printed in text form. Not complete yet:
3401 still needs to check the OCSP response validity.
3404 *) New subcommands for 'openssl ca':
3405 'openssl ca -status <serial>' prints the status of the cert with
3406 the given serial number (according to the index file).
3407 'openssl ca -updatedb' updates the expiry status of certificates
3409 [Massimiliano Pala <madwolf@comune.modena.it>]
3411 *) New '-newreq-nodes' command option to CA.pl. This is like
3412 '-newreq', but calls 'openssl req' with the '-nodes' option
3413 so that the resulting key is not encrypted.
3414 [Damien Miller <djm@mindrot.org>]
3416 *) New configuration for the GNU Hurd.
3417 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
3419 *) Initial code to implement OCSP basic response verify. This
3420 is currently incomplete. Currently just finds the signer's
3421 certificate and verifies the signature on the response.
3424 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
3425 value of OPENSSLDIR. This is available via the new '-d' option
3426 to 'openssl version', and is also included in 'openssl version -a'.
3429 *) Allowing defining memory allocation callbacks that will be given
3430 file name and line number information in additional arguments
3431 (a const char* and an int). The basic functionality remains, as
3432 well as the original possibility to just replace malloc(),
3433 realloc() and free() by functions that do not know about these
3434 additional arguments. To register and find out the current
3435 settings for extended allocation functions, the following
3436 functions are provided:
3438 CRYPTO_set_mem_ex_functions
3439 CRYPTO_set_locked_mem_ex_functions
3440 CRYPTO_get_mem_ex_functions
3441 CRYPTO_get_locked_mem_ex_functions
3443 These work the same way as CRYPTO_set_mem_functions and friends.
3444 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
3445 extended allocation function is enabled.
3446 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
3447 a conventional allocation function is enabled.
3448 [Richard Levitte, Bodo Moeller]
3450 *) Finish off removing the remaining LHASH function pointer casts.
3451 There should no longer be any prototype-casting required when using
3452 the LHASH abstraction, and any casts that remain are "bugs". See
3453 the callback types and macros at the head of lhash.h for details
3454 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
3457 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
3458 If /dev/[u]random devices are not available or do not return enough
3459 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
3461 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
3462 /etc/entropy will be queried once each in this sequence, quering stops
3463 when enough entropy was collected without querying more sockets.
3466 *) Change the Unix RAND_poll() variant to be able to poll several
3467 random devices, as specified by DEVRANDOM, until a sufficient amount
3468 of data has been collected. We spend at most 10 ms on each file
3469 (select timeout) and read in non-blocking mode. DEVRANDOM now
3470 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
3471 (previously it was just the string "/dev/urandom"), so on typical
3472 platforms the 10 ms delay will never occur.
3473 Also separate out the Unix variant to its own file, rand_unix.c.
3474 For VMS, there's a currently-empty rand_vms.c.
3477 *) Move OCSP client related routines to ocsp_cl.c. These
3478 provide utility functions which an application needing
3479 to issue a request to an OCSP responder and analyse the
3480 response will typically need: as opposed to those which an
3481 OCSP responder itself would need which will be added later.
3483 OCSP_request_sign() signs an OCSP request with an API similar
3484 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
3485 response. OCSP_response_get1_basic() extracts basic response
3486 from response. OCSP_resp_find_status(): finds and extracts status
3487 information from an OCSP_CERTID structure (which will be created
3488 when the request structure is built). These are built from lower
3489 level functions which work on OCSP_SINGLERESP structures but
3490 wont normally be used unless the application wishes to examine
3491 extensions in the OCSP response for example.
3493 Replace nonce routines with a pair of functions.
3494 OCSP_request_add1_nonce() adds a nonce value and optionally
3495 generates a random value. OCSP_check_nonce() checks the
3496 validity of the nonce in an OCSP response.
3499 *) Change function OCSP_request_add() to OCSP_request_add0_id().
3500 This doesn't copy the supplied OCSP_CERTID and avoids the
3501 need to free up the newly created id. Change return type
3502 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
3503 This can then be used to add extensions to the request.
3504 Deleted OCSP_request_new(), since most of its functionality
3505 is now in OCSP_REQUEST_new() (and the case insensitive name
3506 clash) apart from the ability to set the request name which
3507 will be added elsewhere.
3510 *) Update OCSP API. Remove obsolete extensions argument from
3511 various functions. Extensions are now handled using the new
3512 OCSP extension code. New simple OCSP HTTP function which
3513 can be used to send requests and parse the response.
3516 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
3517 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
3518 uses the special reorder version of SET OF to sort the attributes
3519 and reorder them to match the encoded order. This resolves a long
3520 standing problem: a verify on a PKCS7 structure just after signing
3521 it used to fail because the attribute order did not match the
3522 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
3523 it uses the received order. This is necessary to tolerate some broken
3524 software that does not order SET OF. This is handled by encoding
3525 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
3526 to produce the required SET OF.
3529 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
3530 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
3531 files to get correct declarations of the ASN.1 item variables.
3534 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
3535 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
3536 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
3537 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
3538 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
3539 ASN1_ITEM and no wrapper functions.
3542 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
3543 replace the old function pointer based I/O routines. Change most of
3544 the *_d2i_bio() and *_d2i_fp() functions to use these.
3547 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
3548 lines, recognice more "algorithms" that can be deselected, and make
3549 it complain about algorithm deselection that isn't recognised.
3552 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
3553 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
3554 to use new functions. Add NO_ASN1_OLD which can be set to remove
3555 some old style ASN1 functions: this can be used to determine if old
3556 code will still work when these eventually go away.
3559 *) New extension functions for OCSP structures, these follow the
3560 same conventions as certificates and CRLs.
3563 *) New function X509V3_add1_i2d(). This automatically encodes and
3564 adds an extension. Its behaviour can be customised with various
3565 flags to append, replace or delete. Various wrappers added for
3566 certifcates and CRLs.
3569 *) Fix to avoid calling the underlying ASN1 print routine when
3570 an extension cannot be parsed. Correct a typo in the
3571 OCSP_SERVICELOC extension. Tidy up print OCSP format.
3574 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
3575 entries for variables.
3578 *) Add functionality to apps/openssl.c for detecting locking
3579 problems: As the program is single-threaded, all we have
3580 to do is register a locking callback using an array for
3581 storing which locks are currently held by the program.
3584 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
3585 SSL_get_ex_data_X509_STORE_idx(), which is used in
3586 ssl_verify_cert_chain() and thus can be called at any time
3587 during TLS/SSL handshakes so that thread-safety is essential.
3588 Unfortunately, the ex_data design is not at all suited
3589 for multi-threaded use, so it probably should be abolished.
3592 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
3593 [Broadcom, tweaked and integrated by Geoff Thorpe]
3595 *) Move common extension printing code to new function
3596 X509V3_print_extensions(). Reorganise OCSP print routines and
3597 implement some needed OCSP ASN1 functions. Add OCSP extensions.
3600 *) New function X509_signature_print() to remove duplication in some
3604 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
3605 set (this was treated exactly the same as SET OF previously). This
3606 is used to reorder the STACK representing the structure to match the
3607 encoding. This will be used to get round a problem where a PKCS7
3608 structure which was signed could not be verified because the STACK
3609 order did not reflect the encoded order.
3612 *) Reimplement the OCSP ASN1 module using the new code.
3615 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
3616 for its ASN1 operations. The old style function pointers still exist
3617 for now but they will eventually go away.
3620 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
3621 completely replaces the old ASN1 functionality with a table driven
3622 encoder and decoder which interprets an ASN1_ITEM structure describing
3623 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
3624 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
3625 has also been converted to the new form.
3628 *) Change BN_mod_exp_recp so that negative moduli are tolerated
3629 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
3630 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
3631 for negative moduli.
3634 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
3635 of not touching the result's sign bit.
3638 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
3642 *) Changed the LHASH code to use prototypes for callbacks, and created
3643 macros to declare and implement thin (optionally static) functions
3644 that provide type-safety and avoid function pointer casting for the
3645 type-specific callbacks.
3648 *) Added Kerberos Cipher Suites to be used with TLS, as written in
3650 [Veers Staats <staatsvr@asc.hpc.mil>,
3651 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
3653 *) Reformat the FAQ so the different questions and answers can be divided
3654 in sections depending on the subject.
3657 *) Have the zlib compression code load ZLIB.DLL dynamically under
3661 *) New function BN_mod_sqrt for computing square roots modulo a prime
3662 (using the probabilistic Tonelli-Shanks algorithm unless
3663 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
3664 be handled deterministically).
3665 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3667 *) Make BN_mod_inverse faster by explicitly handling small quotients
3668 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
3669 512 bits], about 30% for larger ones [1024 or 2048 bits].)
3672 *) New function BN_kronecker.
3675 *) Fix BN_gcd so that it works on negative inputs; the result is
3676 positive unless both parameters are zero.
3677 Previously something reasonably close to an infinite loop was
3678 possible because numbers could be growing instead of shrinking
3679 in the implementation of Euclid's algorithm.
3682 *) Fix BN_is_word() and BN_is_one() macros to take into account the
3683 sign of the number in question.
3685 Fix BN_is_word(a,w) to work correctly for w == 0.
3687 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
3688 because its test if the absolute value of 'a' equals 'w'.
3689 Note that BN_abs_is_word does *not* handle w == 0 reliably;
3690 it exists mostly for use in the implementations of BN_is_zero(),
3691 BN_is_one(), and BN_is_word().
3694 *) New function BN_swap.
3697 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
3698 the exponentiation functions are more likely to produce reasonable
3699 results on negative inputs.
3702 *) Change BN_mod_mul so that the result is always non-negative.
3703 Previously, it could be negative if one of the factors was negative;
3704 I don't think anyone really wanted that behaviour.
3707 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
3708 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
3709 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
3710 and add new functions:
3719 BN_mod_lshift1_quick
3723 These functions always generate non-negative results.
3725 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
3726 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
3728 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
3729 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
3730 be reduced modulo m.
3731 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3734 The following entry accidentily appeared in the CHANGES file
3735 distributed with OpenSSL 0.9.7. The modifications described in
3736 it do *not* apply to OpenSSL 0.9.7.
3738 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3739 was actually never needed) and in BN_mul(). The removal in BN_mul()
3740 required a small change in bn_mul_part_recursive() and the addition
3741 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3742 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3743 bn_sub_words() and bn_add_words() except they take arrays with
3748 *) In 'openssl passwd', verify passwords read from the terminal
3749 unless the '-salt' option is used (which usually means that
3750 verification would just waste user's time since the resulting
3751 hash is going to be compared with some given password hash)
3752 or the new '-noverify' option is used.
3754 This is an incompatible change, but it does not affect
3755 non-interactive use of 'openssl passwd' (passwords on the command
3756 line, '-stdin' option, '-in ...' option) and thus should not
3760 *) Remove all references to RSAref, since there's no more need for it.
3763 *) Make DSO load along a path given through an environment variable
3764 (SHLIB_PATH) with shl_load().
3767 *) Constify the ENGINE code as a result of BIGNUM constification.
3768 Also constify the RSA code and most things related to it. In a
3769 few places, most notable in the depth of the ASN.1 code, ugly
3770 casts back to non-const were required (to be solved at a later
3774 *) Make it so the openssl application has all engines loaded by default.
3777 *) Constify the BIGNUM routines a little more.
3780 *) Add the following functions:
3782 ENGINE_load_cswift()
3784 ENGINE_load_atalla()
3786 ENGINE_load_builtin_engines()
3788 That way, an application can itself choose if external engines that
3789 are built-in in OpenSSL shall ever be used or not. The benefit is
3790 that applications won't have to be linked with libdl or other dso
3791 libraries unless it's really needed.
3793 Changed 'openssl engine' to load all engines on demand.
3794 Changed the engine header files to avoid the duplication of some
3795 declarations (they differed!).
3798 *) 'openssl engine' can now list capabilities.
3801 *) Better error reporting in 'openssl engine'.
3804 *) Never call load_dh_param(NULL) in s_server.
3807 *) Add engine application. It can currently list engines by name and
3808 identity, and test if they are actually available.
3811 *) Improve RPM specification file by forcing symbolic linking and making
3812 sure the installed documentation is also owned by root.root.
3813 [Damien Miller <djm@mindrot.org>]
3815 *) Give the OpenSSL applications more possibilities to make use of
3816 keys (public as well as private) handled by engines.
3819 *) Add OCSP code that comes from CertCo.
3822 *) Add VMS support for the Rijndael code.
3825 *) Added untested support for Nuron crypto accelerator.
3828 *) Add support for external cryptographic devices. This code was
3829 previously distributed separately as the "engine" branch.
3830 [Geoff Thorpe, Richard Levitte]
3832 *) Rework the filename-translation in the DSO code. It is now possible to
3833 have far greater control over how a "name" is turned into a filename
3834 depending on the operating environment and any oddities about the
3835 different shared library filenames on each system.
3838 *) Support threads on FreeBSD-elf in Configure.
3841 *) Fix for SHA1 assembly problem with MASM: it produces
3842 warnings about corrupt line number information when assembling
3843 with debugging information. This is caused by the overlapping
3845 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
3848 NCONF_get_number() has no error checking at all. As a replacement,
3849 NCONF_get_number_e() is defined (_e for "error checking") and is
3850 promoted strongly. The old NCONF_get_number is kept around for
3851 binary backward compatibility.
3852 Make it possible for methods to load from something other than a BIO,
3853 by providing a function pointer that is given a name instead of a BIO.
3854 For example, this could be used to load configuration data from an
3858 *) Fix for non blocking accept BIOs. Added new I/O special reason
3859 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
3860 with non blocking I/O was not possible because no retry code was
3861 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
3865 *) Added the beginnings of Rijndael support.
3868 *) Fix for bug in DirectoryString mask setting. Add support for
3869 X509_NAME_print_ex() in 'req' and X509_print_ex() function
3870 to allow certificate printing to more controllable, additional
3871 'certopt' option to 'x509' to allow new printing options to be
3875 *) Clean old EAY MD5 hack from e_os.h.
3878 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
3880 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3881 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3882 [Joe Orton, Steve Henson]
3884 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
3886 *) Fix additional bug revealed by the NISCC test suite:
3888 Stop bug triggering large recursion when presented with
3889 certain ASN.1 tags (CVE-2003-0851)
3892 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
3894 *) Fix various bugs revealed by running the NISCC test suite:
3896 Stop out of bounds reads in the ASN1 code when presented with
3897 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3899 If verify callback ignores invalid public key errors don't try to check
3900 certificate signature with the NULL public key.
3904 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3905 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3909 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3910 extra data after the compression methods not only for TLS 1.0
3911 but also for SSL 3.0 (as required by the specification).
3912 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3914 *) Change X509_certificate_type() to mark the key as exported/exportable
3915 when it's 512 *bits* long, not 512 bytes.
3918 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
3920 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3921 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3922 a protocol version number mismatch like a decryption error
3923 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3926 *) Turn on RSA blinding by default in the default implementation
3927 to avoid a timing attack. Applications that don't want it can call
3928 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3929 They would be ill-advised to do so in most cases.
3930 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3932 *) Change RSA blinding code so that it works when the PRNG is not
3933 seeded (in this case, the secret RSA exponent is abused as
3934 an unpredictable seed -- if it is not unpredictable, there
3935 is no point in blinding anyway). Make RSA blinding thread-safe
3936 by remembering the creator's thread ID in rsa->blinding and
3937 having all other threads use local one-time blinding factors
3938 (this requires more computation than sharing rsa->blinding, but
3939 avoids excessive locking; and if an RSA object is not shared
3940 between threads, blinding will still be very fast).
3943 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
3945 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3946 via timing by performing a MAC computation even if incorrrect
3947 block cipher padding has been found. This is a countermeasure
3948 against active attacks where the attacker has to distinguish
3949 between bad padding and a MAC verification error. (CVE-2003-0078)
3951 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3952 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3953 Martin Vuagnoux (EPFL, Ilion)]
3955 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
3957 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
3958 memory from it's contents. This is done with a counter that will
3959 place alternating values in each byte. This can be used to solve
3960 two issues: 1) the removal of calls to memset() by highly optimizing
3961 compilers, and 2) cleansing with other values than 0, since those can
3962 be read through on certain media, for example a swap space on disk.
3965 *) Bugfix: client side session caching did not work with external caching,
3966 because the session->cipher setting was not restored when reloading
3967 from the external cache. This problem was masked, when
3968 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
3969 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
3972 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
3973 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
3974 [Zeev Lieber <zeev-l@yahoo.com>]
3976 *) Undo an undocumented change introduced in 0.9.6e which caused
3977 repeated calls to OpenSSL_add_all_ciphers() and
3978 OpenSSL_add_all_digests() to be ignored, even after calling
3982 *) Change the default configuration reader to deal with last line not
3983 being properly terminated.
3986 *) Change X509_NAME_cmp() so it applies the special rules on handling
3987 DN values that are of type PrintableString, as well as RDNs of type
3988 emailAddress where the value has the type ia5String.
3989 [stefank@valicert.com via Richard Levitte]
3991 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
3992 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
3993 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
3994 the bitwise-OR of the two for use by the majority of applications
3995 wanting this behaviour, and update the docs. The documented
3996 behaviour and actual behaviour were inconsistent and had been
3997 changing anyway, so this is more a bug-fix than a behavioural
3999 [Geoff Thorpe, diagnosed by Nadav Har'El]
4001 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
4002 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
4005 *) Fix initialization code race conditions in
4006 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
4007 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
4008 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
4009 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
4010 ssl2_get_cipher_by_char(),
4011 ssl3_get_cipher_by_char().
4012 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
4014 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
4015 the cached sessions are flushed, as the remove_cb() might use ex_data
4016 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
4017 (see [openssl.org #212]).
4018 [Geoff Thorpe, Lutz Jaenicke]
4020 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
4021 length, instead of the encoding length to d2i_ASN1_OBJECT.
4024 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
4026 *) [In 0.9.6g-engine release:]
4027 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
4028 [Lynn Gazis <lgazis@rainbow.com>]
4030 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
4032 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
4033 and get fix the header length calculation.
4034 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
4035 Alon Kantor <alonk@checkpoint.com> (and others),
4038 *) Use proper error handling instead of 'assertions' in buffer
4039 overflow checks added in 0.9.6e. This prevents DoS (the
4040 assertions could call abort()).
4041 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
4043 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
4045 *) Add various sanity checks to asn1_get_length() to reject
4046 the ASN1 length bytes if they exceed sizeof(long), will appear
4047 negative or the content length exceeds the length of the
4049 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4051 *) Fix cipher selection routines: ciphers without encryption had no flags
4052 for the cipher strength set and where therefore not handled correctly
4053 by the selection routines (PR #130).
4056 *) Fix EVP_dsa_sha macro.
4060 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
4061 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
4062 that was added in OpenSSL 0.9.6d.
4064 As the countermeasure turned out to be incompatible with some
4065 broken SSL implementations, the new option is part of SSL_OP_ALL.
4066 SSL_OP_ALL is usually employed when compatibility with weird SSL
4067 implementations is desired (e.g. '-bugs' option to 's_client' and
4068 's_server'), so the new option is automatically set in many
4072 *) Changes in security patch:
4074 Changes marked "(CHATS)" were sponsored by the Defense Advanced
4075 Research Projects Agency (DARPA) and Air Force Research Laboratory,
4076 Air Force Materiel Command, USAF, under agreement number
4079 *) Add various sanity checks to asn1_get_length() to reject
4080 the ASN1 length bytes if they exceed sizeof(long), will appear
4081 negative or the content length exceeds the length of the
4082 supplied buffer. (CVE-2002-0659)
4083 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4085 *) Assertions for various potential buffer overflows, not known to
4087 [Ben Laurie (CHATS)]
4089 *) Various temporary buffers to hold ASCII versions of integers were
4090 too small for 64 bit platforms. (CVE-2002-0655)
4091 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
4093 *) Remote buffer overflow in SSL3 protocol - an attacker could
4094 supply an oversized session ID to a client. (CVE-2002-0656)
4095 [Ben Laurie (CHATS)]
4097 *) Remote buffer overflow in SSL2 protocol - an attacker could
4098 supply an oversized client master key. (CVE-2002-0656)
4099 [Ben Laurie (CHATS)]
4101 Changes between 0.9.6c and 0.9.6d [9 May 2002]
4103 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
4104 encoded as NULL) with id-dsa-with-sha1.
4105 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
4107 *) Check various X509_...() return values in apps/req.c.
4108 [Nils Larsch <nla@trustcenter.de>]
4110 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
4111 an end-of-file condition would erronously be flagged, when the CRLF
4112 was just at the end of a processed block. The bug was discovered when
4113 processing data through a buffering memory BIO handing the data to a
4114 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
4115 <ptsekov@syntrex.com> and Nedelcho Stanev.
4118 *) Implement a countermeasure against a vulnerability recently found
4119 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
4120 before application data chunks to avoid the use of known IVs
4121 with data potentially chosen by the attacker.
4124 *) Fix length checks in ssl3_get_client_hello().
4127 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
4128 to prevent ssl3_read_internal() from incorrectly assuming that
4129 ssl3_read_bytes() found application data while handshake
4130 processing was enabled when in fact s->s3->in_read_app_data was
4131 merely automatically cleared during the initial handshake.
4132 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
4134 *) Fix object definitions for Private and Enterprise: they were not
4135 recognized in their shortname (=lowercase) representation. Extend
4136 obj_dat.pl to issue an error when using undefined keywords instead
4137 of silently ignoring the problem (Svenning Sorensen
4138 <sss@sss.dnsalias.net>).
4141 *) Fix DH_generate_parameters() so that it works for 'non-standard'
4142 generators, i.e. generators other than 2 and 5. (Previously, the
4143 code did not properly initialise the 'add' and 'rem' values to
4144 BN_generate_prime().)
4146 In the new general case, we do not insist that 'generator' is
4147 actually a primitive root: This requirement is rather pointless;
4148 a generator of the order-q subgroup is just as good, if not
4152 *) Map new X509 verification errors to alerts. Discovered and submitted by
4153 Tom Wu <tom@arcot.com>.
4156 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
4157 returning non-zero before the data has been completely received
4158 when using non-blocking I/O.
4159 [Bodo Moeller; problem pointed out by John Hughes]
4161 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
4162 [Ben Laurie, Lutz Jaenicke]
4164 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
4165 Yoram Zahavi <YoramZ@gilian.com>).
4168 *) Add information about CygWin 1.3 and on, and preserve proper
4169 configuration for the versions before that.
4170 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
4172 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
4173 check whether we deal with a copy of a session and do not delete from
4174 the cache in this case. Problem reported by "Izhar Shoshani Levi"
4175 <izhar@checkpoint.com>.
4178 *) Do not store session data into the internal session cache, if it
4179 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
4180 flag is set). Proposed by Aslam <aslam@funk.com>.
4183 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
4187 *) [In 0.9.6d-engine release:]
4188 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4189 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4191 *) Add the configuration target linux-s390x.
4192 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
4194 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
4195 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
4196 variable as an indication that a ClientHello message has been
4197 received. As the flag value will be lost between multiple
4198 invocations of ssl3_accept when using non-blocking I/O, the
4199 function may not be aware that a handshake has actually taken
4200 place, thus preventing a new session from being added to the
4203 To avoid this problem, we now set s->new_session to 2 instead of
4204 using a local variable.
4205 [Lutz Jaenicke, Bodo Moeller]
4207 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
4208 if the SSL_R_LENGTH_MISMATCH error is detected.
4209 [Geoff Thorpe, Bodo Moeller]
4211 *) New 'shared_ldflag' column in Configure platform table.
4214 *) Fix EVP_CIPHER_mode macro.
4215 ["Dan S. Camper" <dan@bti.net>]
4217 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
4218 type, we must throw them away by setting rr->length to 0.
4219 [D P Chang <dpc@qualys.com>]
4221 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
4223 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
4224 <Dominikus.Scherkl@biodata.com>. (The previous implementation
4225 worked incorrectly for those cases where range = 10..._2 and
4226 3*range is two bits longer than range.)
4229 *) Only add signing time to PKCS7 structures if it is not already
4233 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
4234 OBJ_ld_ce should be OBJ_id_ce.
4235 Also some ip-pda OIDs in crypto/objects/objects.txt were
4236 incorrect (cf. RFC 3039).
4237 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
4239 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
4240 returns early because it has nothing to do.
4241 [Andy Schneider <andy.schneider@bjss.co.uk>]
4243 *) [In 0.9.6c-engine release:]
4244 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
4245 [Andy Schneider <andy.schneider@bjss.co.uk>]
4247 *) [In 0.9.6c-engine release:]
4248 Add support for Cryptographic Appliance's keyserver technology.
4249 (Use engine 'keyclient')
4250 [Cryptographic Appliances and Geoff Thorpe]
4252 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
4253 is called via tools/c89.sh because arguments have to be
4254 rearranged (all '-L' options must appear before the first object
4256 [Richard Shapiro <rshapiro@abinitio.com>]
4258 *) [In 0.9.6c-engine release:]
4259 Add support for Broadcom crypto accelerator cards, backported
4261 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
4263 *) [In 0.9.6c-engine release:]
4264 Add support for SureWare crypto accelerator cards from
4265 Baltimore Technologies. (Use engine 'sureware')
4266 [Baltimore Technologies and Mark Cox]
4268 *) [In 0.9.6c-engine release:]
4269 Add support for crypto accelerator cards from Accelerated
4270 Encryption Processing, www.aep.ie. (Use engine 'aep')
4271 [AEP Inc. and Mark Cox]
4273 *) Add a configuration entry for gcc on UnixWare.
4274 [Gary Benson <gbenson@redhat.com>]
4276 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
4277 messages are stored in a single piece (fixed-length part and
4278 variable-length part combined) and fix various bugs found on the way.
4281 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
4282 instead. BIO_gethostbyname() does not know what timeouts are
4283 appropriate, so entries would stay in cache even when they have
4285 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
4287 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
4288 faced with a pathologically small ClientHello fragment that does
4289 not contain client_version: Instead of aborting with an error,
4290 simply choose the highest available protocol version (i.e.,
4291 TLS 1.0 unless it is disabled). In practice, ClientHello
4292 messages are never sent like this, but this change gives us
4293 strictly correct behaviour at least for TLS.
4296 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
4297 never resets s->method to s->ctx->method when called from within
4298 one of the SSL handshake functions.
4299 [Bodo Moeller; problem pointed out by Niko Baric]
4301 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
4302 (sent using the client's version number) if client_version is
4303 smaller than the protocol version in use. Also change
4304 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
4305 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
4306 the client will at least see that alert.
4309 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
4313 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
4314 client receives HelloRequest while in a handshake.
4315 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
4317 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
4318 should end in 'break', not 'goto end' which circuments various
4319 cleanups done in state SSL_ST_OK. But session related stuff
4320 must be disabled for SSL_ST_OK in the case that we just sent a
4323 Also avoid some overhead by not calling ssl_init_wbio_buffer()
4324 before just sending a HelloRequest.
4325 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
4327 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
4328 reveal whether illegal block cipher padding was found or a MAC
4329 verification error occured. (Neither SSLerr() codes nor alerts
4330 are directly visible to potential attackers, but the information
4331 may leak via logfiles.)
4333 Similar changes are not required for the SSL 2.0 implementation
4334 because the number of padding bytes is sent in clear for SSL 2.0,
4335 and the extra bytes are just ignored. However ssl/s2_pkt.c
4336 failed to verify that the purported number of padding bytes is in
4340 *) Add OpenUNIX-8 support including shared libraries
4341 (Boyd Lynn Gerber <gerberb@zenez.com>).
4344 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
4345 'wristwatch attack' using huge encoding parameters (cf.
4346 James H. Manger's CRYPTO 2001 paper). Note that the
4347 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
4348 encoding parameters and hence was not vulnerable.
4351 *) BN_sqr() bug fix.
4352 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
4354 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
4355 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
4356 followed by modular reduction.
4357 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
4359 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
4360 equivalent based on BN_pseudo_rand() instead of BN_rand().
4363 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
4364 This function was broken, as the check for a new client hello message
4365 to handle SGC did not allow these large messages.
4366 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
4369 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
4372 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
4373 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
4376 *) Rework the configuration and shared library support for Tru64 Unix.
4377 The configuration part makes use of modern compiler features and
4378 still retains old compiler behavior for those that run older versions
4379 of the OS. The shared library support part includes a variant that
4380 uses the RPATH feature, and is available through the special
4381 configuration target "alpha-cc-rpath", which will never be selected
4383 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
4385 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
4386 with the same message size as in ssl3_get_certificate_request().
4387 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
4388 messages might inadvertently be reject as too long.
4389 [Petr Lampa <lampa@fee.vutbr.cz>]
4391 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
4394 *) Modified SSL library such that the verify_callback that has been set
4395 specificly for an SSL object with SSL_set_verify() is actually being
4396 used. Before the change, a verify_callback set with this function was
4397 ignored and the verify_callback() set in the SSL_CTX at the time of
4398 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
4399 to allow the necessary settings.
4402 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
4403 explicitly to NULL, as at least on Solaris 8 this seems not always to be
4404 done automatically (in contradiction to the requirements of the C
4405 standard). This made problems when used from OpenSSH.
4408 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
4409 dh->length and always used
4411 BN_rand_range(priv_key, dh->p).
4413 BN_rand_range() is not necessary for Diffie-Hellman, and this
4414 specific range makes Diffie-Hellman unnecessarily inefficient if
4415 dh->length (recommended exponent length) is much smaller than the
4416 length of dh->p. We could use BN_rand_range() if the order of
4417 the subgroup was stored in the DH structure, but we only have
4422 BN_rand(priv_key, l, ...)
4424 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
4430 RSA_eay_public_encrypt
4431 RSA_eay_private_decrypt
4432 RSA_eay_private_encrypt (signing)
4433 RSA_eay_public_decrypt (signature verification)
4435 (default implementations for RSA_public_encrypt,
4436 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
4437 always reject numbers >= n.
4440 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
4441 to synchronize access to 'locking_thread'. This is necessary on
4442 systems where access to 'locking_thread' (an 'unsigned long'
4443 variable) is not atomic.
4446 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
4447 *before* setting the 'crypto_lock_rand' flag. The previous code had
4448 a race condition if 0 is a valid thread ID.
4449 [Travis Vitek <vitek@roguewave.com>]
4451 *) Add support for shared libraries under Irix.
4452 [Albert Chin-A-Young <china@thewrittenword.com>]
4454 *) Add configuration option to build on Linux on both big-endian and
4456 [Ralf Baechle <ralf@uni-koblenz.de>]
4458 *) Add the possibility to create shared libraries on HP-UX.
4461 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
4463 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
4464 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
4465 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
4466 PRNG state recovery was possible based on the output of
4467 one PRNG request appropriately sized to gain knowledge on
4468 'md' followed by enough consecutive 1-byte PRNG requests
4469 to traverse all of 'state'.
4471 1. When updating 'md_local' (the current thread's copy of 'md')
4472 during PRNG output generation, hash all of the previous
4473 'md_local' value, not just the half used for PRNG output.
4475 2. Make the number of bytes from 'state' included into the hash
4476 independent from the number of PRNG bytes requested.
4478 The first measure alone would be sufficient to avoid
4479 Markku-Juhani's attack. (Actually it had never occurred
4480 to me that the half of 'md_local' used for chaining was the
4481 half from which PRNG output bytes were taken -- I had always
4482 assumed that the secret half would be used.) The second
4483 measure makes sure that additional data from 'state' is never
4484 mixed into 'md_local' in small portions; this heuristically
4485 further strengthens the PRNG.
4488 *) Fix crypto/bn/asm/mips3.s.
4491 *) When only the key is given to "enc", the IV is undefined. Print out
4492 an error message in this case.
4495 *) Handle special case when X509_NAME is empty in X509 printing routines.
4498 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
4499 positive and less than q.
4502 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
4503 used: it isn't thread safe and the add_lock_callback should handle
4505 [Paul Rose <Paul.Rose@bridge.com>]
4507 *) Verify that incoming data obeys the block size in
4508 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
4512 [Ulf Möller, Bodo Möller]
4514 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
4515 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
4516 when fixing the server behaviour for backwards-compatible 'client
4517 hello' messages. (Note that the attack is impractical against
4518 SSL 3.0 and TLS 1.0 anyway because length and version checking
4519 means that the probability of guessing a valid ciphertext is
4520 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
4523 Before 0.9.5, the countermeasure (hide the error by generating a
4524 random 'decryption result') did not work properly because
4525 ERR_clear_error() was missing, meaning that SSL_get_error() would
4526 detect the supposedly ignored error.
4528 Both problems are now fixed.
4531 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
4532 (previously it was 1024).
4535 *) Fix for compatibility mode trust settings: ignore trust settings
4536 unless some valid trust or reject settings are present.
4539 *) Fix for blowfish EVP: its a variable length cipher.
4542 *) Fix various bugs related to DSA S/MIME verification. Handle missing
4543 parameters in DSA public key structures and return an error in the
4544 DSA routines if parameters are absent.
4547 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
4548 in the current directory if neither $RANDFILE nor $HOME was set.
4549 RAND_file_name() in 0.9.6a returned NULL in this case. This has
4550 caused some confusion to Windows users who haven't defined $HOME.
4551 Thus RAND_file_name() is changed again: e_os.h can define a
4552 DEFAULT_HOME, which will be used if $HOME is not set.
4553 For Windows, we use "C:"; on other platforms, we still require
4554 environment variables.
4556 *) Move 'if (!initialized) RAND_poll()' into regions protected by
4557 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
4558 having multiple threads call RAND_poll() concurrently.
4561 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
4562 combination of a flag and a thread ID variable.
4563 Otherwise while one thread is in ssleay_rand_bytes (which sets the
4564 flag), *other* threads can enter ssleay_add_bytes without obeying
4565 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
4566 that they do not hold after the first thread unsets add_do_not_lock).
4569 *) Change bctest again: '-x' expressions are not available in all
4573 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
4575 *) Fix a couple of memory leaks in PKCS7_dataDecode()
4576 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
4578 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
4579 the default extension for executables, if any. Also, make the perl
4580 scripts that use symlink() to test if it really exists and use "cp"
4581 if it doesn't. All this made OpenSSL compilable and installable in
4585 *) Fix for asn1_GetSequence() for indefinite length constructed data.
4586 If SEQUENCE is length is indefinite just set c->slen to the total
4587 amount of data available.
4588 [Steve Henson, reported by shige@FreeBSD.org]
4589 [This change does not apply to 0.9.7.]
4591 *) Change bctest to avoid here-documents inside command substitution
4592 (workaround for FreeBSD /bin/sh bug).
4593 For compatibility with Ultrix, avoid shell functions (introduced
4594 in the bctest version that searches along $PATH).
4597 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
4598 with des_encrypt() defined on some operating systems, like Solaris
4602 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
4603 On the Importance of Eliminating Errors in Cryptographic
4604 Computations, J. Cryptology 14 (2001) 2, 101-119,
4605 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
4608 *) MIPS assembler BIGNUM division bug fix.
4611 *) Disabled incorrect Alpha assembler code.
4614 *) Fix PKCS#7 decode routines so they correctly update the length
4615 after reading an EOC for the EXPLICIT tag.
4617 [This change does not apply to 0.9.7.]
4619 *) Fix bug in PKCS#12 key generation routines. This was triggered
4620 if a 3DES key was generated with a 0 initial byte. Include
4621 PKCS12_BROKEN_KEYGEN compilation option to retain the old
4622 (but broken) behaviour.
4625 *) Enhance bctest to search for a working bc along $PATH and print
4627 [Tim Rice <tim@multitalents.net> via Richard Levitte]
4629 *) Fix memory leaks in err.c: free err_data string if necessary;
4630 don't write to the wrong index in ERR_set_error_data.
4633 *) Implement ssl23_peek (analogous to ssl23_read), which previously
4637 *) Replace rdtsc with _emit statements for VC++ version 5.
4638 [Jeremy Cooper <jeremy@baymoo.org>]
4640 *) Make it possible to reuse SSLv2 sessions.
4643 *) In copy_email() check for >= 0 as a return value for
4644 X509_NAME_get_index_by_NID() since 0 is a valid index.
4645 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
4647 *) Avoid coredump with unsupported or invalid public keys by checking if
4648 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
4649 PKCS7_verify() fails with non detached data.
4652 *) Don't use getenv in library functions when run as setuid/setgid.
4653 New function OPENSSL_issetugid().
4656 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
4657 due to incorrect handling of multi-threading:
4659 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
4661 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
4663 3. Count how many times MemCheck_off() has been called so that
4664 nested use can be treated correctly. This also avoids
4665 inband-signalling in the previous code (which relied on the
4666 assumption that thread ID 0 is impossible).
4669 *) Add "-rand" option also to s_client and s_server.
4672 *) Fix CPU detection on Irix 6.x.
4673 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
4674 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4676 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
4679 [This change does not apply to 0.9.7.]
4681 *) Use the cached encoding of an X509_NAME structure rather than
4682 copying it. This is apparently the reason for the libsafe "errors"
4683 but the code is actually correct.
4686 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
4687 Bleichenbacher's DSA attack.
4688 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
4689 to be set and top=0 forces the highest bit to be set; top=-1 is new
4690 and leaves the highest bit random.
4691 [Ulf Moeller, Bodo Moeller]
4693 *) In the NCONF_...-based implementations for CONF_... queries
4694 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
4695 a temporary CONF structure with the data component set to NULL
4696 (which gives segmentation faults in lh_retrieve).
4697 Instead, use NULL for the CONF pointer in CONF_get_string and
4698 CONF_get_number (which may use environment variables) and directly
4699 return NULL from CONF_get_section.
4702 *) Fix potential buffer overrun for EBCDIC.
4705 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
4706 keyUsage if basicConstraints absent for a CA.
4709 *) Make SMIME_write_PKCS7() write mail header values with a format that
4710 is more generally accepted (no spaces before the semicolon), since
4711 some programs can't parse those values properly otherwise. Also make
4712 sure BIO's that break lines after each write do not create invalid
4716 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
4717 macros previously used would not encode an empty SEQUENCE OF
4718 and break the signature.
4720 [This change does not apply to 0.9.7.]
4722 *) Zero the premaster secret after deriving the master secret in
4726 *) Add some EVP_add_digest_alias registrations (as found in
4727 OpenSSL_add_all_digests()) to SSL_library_init()
4728 aka OpenSSL_add_ssl_algorithms(). This provides improved
4729 compatibility with peers using X.509 certificates
4730 with unconventional AlgorithmIdentifier OIDs.
4733 *) Fix for Irix with NO_ASM.
4734 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4736 *) ./config script fixes.
4737 [Ulf Moeller, Richard Levitte]
4739 *) Fix 'openssl passwd -1'.
4742 *) Change PKCS12_key_gen_asc() so it can cope with non null
4743 terminated strings whose length is passed in the passlen
4744 parameter, for example from PEM callbacks. This was done
4745 by adding an extra length parameter to asc2uni().
4746 [Steve Henson, reported by <oddissey@samsung.co.kr>]
4748 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
4749 call failed, free the DSA structure.
4752 *) Fix to uni2asc() to cope with zero length Unicode strings.
4753 These are present in some PKCS#12 files.
4756 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
4757 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
4758 when writing a 32767 byte record.
4759 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
4761 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
4762 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
4764 (RSA objects have a reference count access to which is protected
4765 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
4766 so they are meant to be shared between threads.)
4767 [Bodo Moeller, Geoff Thorpe; original patch submitted by
4768 "Reddie, Steven" <Steven.Reddie@ca.com>]
4770 *) Fix a deadlock in CRYPTO_mem_leaks().
4773 *) Use better test patterns in bntest.
4776 *) rand_win.c fix for Borland C.
4779 *) BN_rshift bugfix for n == 0.
4782 *) Add a 'bctest' script that checks for some known 'bc' bugs
4783 so that 'make test' does not abort just because 'bc' is broken.
4786 *) Store verify_result within SSL_SESSION also for client side to
4787 avoid potential security hole. (Re-used sessions on the client side
4788 always resulted in verify_result==X509_V_OK, not using the original
4789 result of the server certificate verification.)
4792 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
4793 SSL3_RT_APPLICATION_DATA, return 0.
4794 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
4798 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
4799 releases, have been re-implemented by renaming the previous
4800 implementations of ssl2_read and ssl3_read to ssl2_read_internal
4801 and ssl3_read_internal, respectively, and adding 'peek' parameters
4802 to them. The new ssl[23]_{read,peek} functions are calls to
4803 ssl[23]_read_internal with the 'peek' flag set appropriately.
4804 A 'peek' parameter has also been added to ssl3_read_bytes, which
4805 does the actual work for ssl3_read_internal.
4808 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
4809 the method-specific "init()" handler. Also clean up ex_data after
4810 calling the method-specific "finish()" handler. Previously, this was
4811 happening the other way round.
4814 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
4815 The previous value, 12, was not always sufficient for BN_mod_exp().
4818 *) Make sure that shared libraries get the internal name engine with
4819 the full version number and not just 0. This should mark the
4820 shared libraries as not backward compatible. Of course, this should
4821 be changed again when we can guarantee backward binary compatibility.
4824 *) Fix typo in get_cert_by_subject() in by_dir.c
4825 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
4827 *) Rework the system to generate shared libraries:
4829 - Make note of the expected extension for the shared libraries and
4830 if there is a need for symbolic links from for example libcrypto.so.0
4831 to libcrypto.so.0.9.7. There is extended info in Configure for
4834 - Make as few rebuilds of the shared libraries as possible.
4836 - Still avoid linking the OpenSSL programs with the shared libraries.
4838 - When installing, install the shared libraries separately from the
4842 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
4844 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
4845 and not in SSL_clear because the latter is also used by the
4846 accept/connect functions; previously, the settings made by
4847 SSL_set_read_ahead would be lost during the handshake.
4848 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
4850 *) Correct util/mkdef.pl to be selective about disabled algorithms.
4851 Previously, it would create entries for disableed algorithms no
4855 *) Added several new manual pages for SSL_* function.
4858 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
4860 *) In ssl23_get_client_hello, generate an error message when faced
4861 with an initial SSL 3.0/TLS record that is too small to contain the
4862 first two bytes of the ClientHello message, i.e. client_version.
4863 (Note that this is a pathologic case that probably has never happened
4864 in real life.) The previous approach was to use the version number
4865 from the record header as a substitute; but our protocol choice
4866 should not depend on that one because it is not authenticated
4867 by the Finished messages.
4870 *) More robust randomness gathering functions for Windows.
4871 [Jeffrey Altman <jaltman@columbia.edu>]
4873 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
4874 not set then we don't setup the error code for issuer check errors
4875 to avoid possibly overwriting other errors which the callback does
4876 handle. If an application does set the flag then we assume it knows
4877 what it is doing and can handle the new informational codes
4881 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
4882 a general "ANY" type, as such it should be able to decode anything
4883 including tagged types. However it didn't check the class so it would
4884 wrongly interpret tagged types in the same way as their universal
4885 counterpart and unknown types were just rejected. Changed so that the
4886 tagged and unknown types are handled in the same way as a SEQUENCE:
4887 that is the encoding is stored intact. There is also a new type
4888 "V_ASN1_OTHER" which is used when the class is not universal, in this
4889 case we have no idea what the actual type is so we just lump them all
4893 *) On VMS, stdout may very well lead to a file that is written to
4894 in a record-oriented fashion. That means that every write() will
4895 write a separate record, which will be read separately by the
4896 programs trying to read from it. This can be very confusing.
4898 The solution is to put a BIO filter in the way that will buffer
4899 text until a linefeed is reached, and then write everything a
4900 line at a time, so every record written will be an actual line,
4901 not chunks of lines and not (usually doesn't happen, but I've
4902 seen it once) several lines in one record. BIO_f_linebuffer() is
4905 Currently, it's a VMS-only method, because that's where it has
4906 been tested well enough.
4909 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
4910 it can return incorrect results.
4911 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
4912 but it was in 0.9.6-beta[12].)
4915 *) Disable the check for content being present when verifying detached
4916 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
4917 include zero length content when signing messages.
4920 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
4921 BIO_ctrl (for BIO pairs).
4924 *) Add DSO method for VMS.
4927 *) Bug fix: Montgomery multiplication could produce results with the
4931 *) Add RPM specification openssl.spec and modify it to build three
4932 packages. The default package contains applications, application
4933 documentation and run-time libraries. The devel package contains
4934 include files, static libraries and function documentation. The
4935 doc package contains the contents of the doc directory. The original
4936 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
4939 *) Add a large number of documentation files for many SSL routines.
4940 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
4942 *) Add a configuration entry for Sony News 4.
4943 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
4945 *) Don't set the two most significant bits to one when generating a
4946 random number < q in the DSA library.
4949 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
4950 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
4951 the underlying transport is blocking) if a handshake took place.
4952 (The default behaviour is needed by applications such as s_client
4953 and s_server that use select() to determine when to use SSL_read;
4954 but for applications that know in advance when to expect data, it
4955 just makes things more complicated.)
4958 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
4962 *) Add a few more EBCDIC conditionals that make `req' and `x509'
4963 work better on such systems.
4964 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
4966 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
4967 Update PKCS12_parse() so it copies the friendlyName and the
4968 keyid to the certificates aux info.
4971 *) Fix bug in PKCS7_verify() which caused an infinite loop
4972 if there was more than one signature.
4973 [Sven Uszpelkat <su@celocom.de>]
4975 *) Major change in util/mkdef.pl to include extra information
4976 about each symbol, as well as presentig variables as well
4977 as functions. This change means that there's n more need
4978 to rebuild the .num files when some algorithms are excluded.
4981 *) Allow the verify time to be set by an application,
4982 rather than always using the current time.
4985 *) Phase 2 verify code reorganisation. The certificate
4986 verify code now looks up an issuer certificate by a
4987 number of criteria: subject name, authority key id
4988 and key usage. It also verifies self signed certificates
4989 by the same criteria. The main comparison function is
4990 X509_check_issued() which performs these checks.
4992 Lot of changes were necessary in order to support this
4993 without completely rewriting the lookup code.
4995 Authority and subject key identifier are now cached.
4997 The LHASH 'certs' is X509_STORE has now been replaced
4998 by a STACK_OF(X509_OBJECT). This is mainly because an
4999 LHASH can't store or retrieve multiple objects with
5000 the same hash value.
5002 As a result various functions (which were all internal
5003 use only) have changed to handle the new X509_STORE
5004 structure. This will break anything that messed round
5005 with X509_STORE internally.
5007 The functions X509_STORE_add_cert() now checks for an
5008 exact match, rather than just subject name.
5010 The X509_STORE API doesn't directly support the retrieval
5011 of multiple certificates matching a given criteria, however
5012 this can be worked round by performing a lookup first
5013 (which will fill the cache with candidate certificates)
5014 and then examining the cache for matches. This is probably
5015 the best we can do without throwing out X509_LOOKUP
5016 entirely (maybe later...).
5018 The X509_VERIFY_CTX structure has been enhanced considerably.
5020 All certificate lookup operations now go via a get_issuer()
5021 callback. Although this currently uses an X509_STORE it
5022 can be replaced by custom lookups. This is a simple way
5023 to bypass the X509_STORE hackery necessary to make this
5024 work and makes it possible to use more efficient techniques
5025 in future. A very simple version which uses a simple
5026 STACK for its trusted certificate store is also provided
5027 using X509_STORE_CTX_trusted_stack().
5029 The verify_cb() and verify() callbacks now have equivalents
5030 in the X509_STORE_CTX structure.
5032 X509_STORE_CTX also has a 'flags' field which can be used
5033 to customise the verify behaviour.
5036 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
5037 excludes S/MIME capabilities.
5040 *) When a certificate request is read in keep a copy of the
5041 original encoding of the signed data and use it when outputing
5042 again. Signatures then use the original encoding rather than
5043 a decoded, encoded version which may cause problems if the
5044 request is improperly encoded.
5047 *) For consistency with other BIO_puts implementations, call
5048 buffer_write(b, ...) directly in buffer_puts instead of calling
5051 In BIO_puts, increment b->num_write as in BIO_write.
5052 [Peter.Sylvester@EdelWeb.fr]
5054 *) Fix BN_mul_word for the case where the word is 0. (We have to use
5055 BN_zero, we may not return a BIGNUM with an array consisting of
5059 *) Avoid calling abort() from within the library when problems are
5060 detected, except if preprocessor symbols have been defined
5061 (such as REF_CHECK, BN_DEBUG etc.).
5064 *) New openssl application 'rsautl'. This utility can be
5065 used for low level RSA operations. DER public key
5066 BIO/fp routines also added.
5069 *) New Configure entry and patches for compiling on QNX 4.
5070 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
5072 *) A demo state-machine implementation was sponsored by
5073 Nuron (http://www.nuron.com/) and is now available in
5074 demos/state_machine.
5077 *) New options added to the 'dgst' utility for signature
5078 generation and verification.
5081 *) Unrecognized PKCS#7 content types are now handled via a
5082 catch all ASN1_TYPE structure. This allows unsupported
5083 types to be stored as a "blob" and an application can
5084 encode and decode it manually.
5087 *) Fix various signed/unsigned issues to make a_strex.c
5089 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
5091 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
5092 length if passed a buffer. ASN1_INTEGER_to_BN failed
5093 if passed a NULL BN and its argument was negative.
5094 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
5096 *) Modification to PKCS#7 encoding routines to output definite
5097 length encoding. Since currently the whole structures are in
5098 memory there's not real point in using indefinite length
5099 constructed encoding. However if OpenSSL is compiled with
5100 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
5103 *) Added BIO_vprintf() and BIO_vsnprintf().
5106 *) Added more prefixes to parse for in the the strings written
5107 through a logging bio, to cover all the levels that are available
5108 through syslog. The prefixes are now:
5110 PANIC, EMERG, EMR => LOG_EMERG
5111 ALERT, ALR => LOG_ALERT
5112 CRIT, CRI => LOG_CRIT
5113 ERROR, ERR => LOG_ERR
5114 WARNING, WARN, WAR => LOG_WARNING
5115 NOTICE, NOTE, NOT => LOG_NOTICE
5116 INFO, INF => LOG_INFO
5117 DEBUG, DBG => LOG_DEBUG
5119 and as before, if none of those prefixes are present at the
5120 beginning of the string, LOG_ERR is chosen.
5122 On Win32, the LOG_* levels are mapped according to this:
5124 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
5125 LOG_WARNING => EVENTLOG_WARNING_TYPE
5126 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
5130 *) Made it possible to reconfigure with just the configuration
5131 argument "reconf" or "reconfigure". The command line arguments
5132 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
5133 and are retrieved from there when reconfiguring.
5137 [Assar Westerlund <assar@sics.se>, Richard Levitte]
5139 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
5142 *) The obj_dat.pl script was messing up the sorting of object
5143 names. The reason was that it compared the quoted version
5144 of strings as a result "OCSP" > "OCSP Signing" because
5145 " > SPACE. Changed script to store unquoted versions of
5146 names and add quotes on output. It was also omitting some
5147 names from the lookup table if they were given a default
5148 value (that is if SN is missing it is given the same
5149 value as LN and vice versa), these are now added on the
5150 grounds that if an object has a name we should be able to
5151 look it up. Finally added warning output when duplicate
5152 short or long names are found.
5155 *) Changes needed for Tandem NSK.
5156 [Scott Uroff <scott@xypro.com>]
5158 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
5159 RSA_padding_check_SSLv23(), special padding was never detected
5160 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
5161 version rollback attacks was not effective.
5163 In s23_clnt.c, don't use special rollback-attack detection padding
5164 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
5165 client; similarly, in s23_srvr.c, don't do the rollback check if
5166 SSL 2.0 is the only protocol enabled in the server.
5169 *) Make it possible to get hexdumps of unprintable data with 'openssl
5170 asn1parse'. By implication, the functions ASN1_parse_dump() and
5171 BIO_dump_indent() are added.
5174 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
5175 these print out strings and name structures based on various
5176 flags including RFC2253 support and proper handling of
5177 multibyte characters. Added options to the 'x509' utility
5178 to allow the various flags to be set.
5181 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
5182 Also change the functions X509_cmp_current_time() and
5183 X509_gmtime_adj() work with an ASN1_TIME structure,
5184 this will enable certificates using GeneralizedTime in validity
5185 dates to be checked.
5188 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
5189 negative public key encodings) on by default,
5190 NO_NEG_PUBKEY_BUG can be set to disable it.
5193 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
5194 content octets. An i2c_ASN1_OBJECT is unnecessary because
5195 the encoding can be trivially obtained from the structure.
5198 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
5199 not read locks (CRYPTO_r_[un]lock).
5202 *) A first attempt at creating official support for shared
5203 libraries through configuration. I've kept it so the
5204 default is static libraries only, and the OpenSSL programs
5205 are always statically linked for now, but there are
5206 preparations for dynamic linking in place.
5207 This has been tested on Linux and Tru64.
5210 *) Randomness polling function for Win9x, as described in:
5211 Peter Gutmann, Software Generation of Practically Strong
5215 *) Fix so PRNG is seeded in req if using an already existing
5219 *) New options to smime application. -inform and -outform
5220 allow alternative formats for the S/MIME message including
5221 PEM and DER. The -content option allows the content to be
5222 specified separately. This should allow things like Netscape
5223 form signing output easier to verify.
5226 *) Fix the ASN1 encoding of tags using the 'long form'.
5229 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
5230 STRING types. These convert content octets to and from the
5231 underlying type. The actual tag and length octets are
5232 already assumed to have been read in and checked. These
5233 are needed because all other string types have virtually
5234 identical handling apart from the tag. By having versions
5235 of the ASN1 functions that just operate on content octets
5236 IMPLICIT tagging can be handled properly. It also allows
5237 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
5238 and ASN1_INTEGER are identical apart from the tag.
5241 *) Change the handling of OID objects as follows:
5243 - New object identifiers are inserted in objects.txt, following
5244 the syntax given in objects.README.
5245 - objects.pl is used to process obj_mac.num and create a new
5247 - obj_dat.pl is used to create a new obj_dat.h, using the data in
5250 This is currently kind of a hack, and the perl code in objects.pl
5251 isn't very elegant, but it works as I intended. The simplest way
5252 to check that it worked correctly is to look in obj_dat.h and
5253 check the array nid_objs and make sure the objects haven't moved
5254 around (this is important!). Additions are OK, as well as
5255 consistent name changes.
5258 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
5261 *) Addition of the command line parameter '-rand file' to 'openssl req'.
5262 The given file adds to whatever has already been seeded into the
5263 random pool through the RANDFILE configuration file option or
5264 environment variable, or the default random state file.
5267 *) mkstack.pl now sorts each macro group into lexical order.
5268 Previously the output order depended on the order the files
5269 appeared in the directory, resulting in needless rewriting
5273 *) Patches to make OpenSSL compile under Win32 again. Mostly
5274 work arounds for the VC++ problem that it treats func() as
5275 func(void). Also stripped out the parts of mkdef.pl that
5276 added extra typesafe functions: these no longer exist.
5279 *) Reorganisation of the stack code. The macros are now all
5280 collected in safestack.h . Each macro is defined in terms of
5281 a "stack macro" of the form SKM_<name>(type, a, b). The
5282 DEBUG_SAFESTACK is now handled in terms of function casts,
5283 this has the advantage of retaining type safety without the
5284 use of additional functions. If DEBUG_SAFESTACK is not defined
5285 then the non typesafe macros are used instead. Also modified the
5286 mkstack.pl script to handle the new form. Needs testing to see
5287 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
5288 the default if no major problems. Similar behaviour for ASN1_SET_OF
5289 and PKCS12_STACK_OF.
5292 *) When some versions of IIS use the 'NET' form of private key the
5293 key derivation algorithm is different. Normally MD5(password) is
5294 used as a 128 bit RC4 key. In the modified case
5295 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
5296 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
5297 as the old Netscape_RSA functions except they have an additional
5298 'sgckey' parameter which uses the modified algorithm. Also added
5299 an -sgckey command line option to the rsa utility. Thanks to
5300 Adrian Peck <bertie@ncipher.com> for posting details of the modified
5301 algorithm to openssl-dev.
5304 *) The evp_local.h macros were using 'c.##kname' which resulted in
5305 invalid expansion on some systems (SCO 5.0.5 for example).
5306 Corrected to 'c.kname'.
5307 [Phillip Porch <root@theporch.com>]
5309 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
5310 a STACK of email addresses from a certificate or request, these look
5311 in the subject name and the subject alternative name extensions and
5312 omit any duplicate addresses.
5315 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
5316 This makes DSA verification about 2 % faster.
5319 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
5320 (meaning that now 2^5 values will be precomputed, which is only 4 KB
5321 plus overhead for 1024 bit moduli).
5322 This makes exponentiations about 0.5 % faster for 1024 bit
5323 exponents (as measured by "openssl speed rsa2048").
5326 *) Rename memory handling macros to avoid conflicts with other
5328 Malloc => OPENSSL_malloc
5329 Malloc_locked => OPENSSL_malloc_locked
5330 Realloc => OPENSSL_realloc
5331 Free => OPENSSL_free
5334 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
5335 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
5338 *) CygWin32 support.
5339 [John Jarvie <jjarvie@newsguy.com>]
5341 *) The type-safe stack code has been rejigged. It is now only compiled
5342 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
5343 by default all type-specific stack functions are "#define"d back to
5344 standard stack functions. This results in more streamlined output
5345 but retains the type-safety checking possibilities of the original
5349 *) The STACK code has been cleaned up, and certain type declarations
5350 that didn't make a lot of sense have been brought in line. This has
5351 also involved a cleanup of sorts in safestack.h to more correctly
5352 map type-safe stack functions onto their plain stack counterparts.
5353 This work has also resulted in a variety of "const"ifications of
5354 lots of the code, especially "_cmp" operations which should normally
5355 be prototyped with "const" parameters anyway.
5358 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
5359 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
5360 (The PRNG state consists of two parts, the large pool 'state' and 'md',
5361 where all of 'md' is used each time the PRNG is used, but 'state'
5362 is used only indexed by a cyclic counter. As entropy may not be
5363 well distributed from the beginning, 'md' is important as a
5364 chaining variable. However, the output function chains only half
5365 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
5366 all of 'md', and seeding with STATE_SIZE dummy bytes will result
5367 in all of 'state' being rewritten, with the new values depending
5368 on virtually all of 'md'. This overcomes the 80 bit limitation.)
5371 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
5372 the handshake is continued after ssl_verify_cert_chain();
5373 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
5374 can lead to 'unexplainable' connection aborts later.
5375 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
5377 *) Major EVP API cipher revision.
5378 Add hooks for extra EVP features. This allows various cipher
5379 parameters to be set in the EVP interface. Support added for variable
5380 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
5381 setting of RC2 and RC5 parameters.
5383 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
5386 Remove lots of duplicated code from the EVP library. For example *every*
5387 cipher init() function handles the 'iv' in the same way according to the
5388 cipher mode. They also all do nothing if the 'key' parameter is NULL and
5389 for CFB and OFB modes they zero ctx->num.
5391 New functionality allows removal of S/MIME code RC2 hack.
5393 Most of the routines have the same form and so can be declared in terms
5396 By shifting this to the top level EVP_CipherInit() it can be removed from
5397 all individual ciphers. If the cipher wants to handle IVs or keys
5398 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
5401 Change lots of functions like EVP_EncryptUpdate() to now return a
5402 value: although software versions of the algorithms cannot fail
5403 any installed hardware versions can.
5406 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
5407 this option is set, tolerate broken clients that send the negotiated
5408 protocol version number instead of the requested protocol version
5412 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
5413 i.e. non-zero for export ciphersuites, zero otherwise.
5414 Previous versions had this flag inverted, inconsistent with
5415 rsa_tmp_cb (..._TMP_RSA_CB).
5416 [Bodo Moeller; problem reported by Amit Chopra]
5418 *) Add missing DSA library text string. Work around for some IIS
5419 key files with invalid SEQUENCE encoding.
5422 *) Add a document (doc/standards.txt) that list all kinds of standards
5423 and so on that are implemented in OpenSSL.
5426 *) Enhance c_rehash script. Old version would mishandle certificates
5427 with the same subject name hash and wouldn't handle CRLs at all.
5428 Added -fingerprint option to crl utility, to support new c_rehash
5432 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
5435 *) Fix for SSL server purpose checking. Server checking was
5436 rejecting certificates which had extended key usage present
5437 but no ssl client purpose.
5438 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
5440 *) Make PKCS#12 code work with no password. The PKCS#12 spec
5441 is a little unclear about how a blank password is handled.
5442 Since the password in encoded as a BMPString with terminating
5443 double NULL a zero length password would end up as just the
5444 double NULL. However no password at all is different and is
5445 handled differently in the PKCS#12 key generation code. NS
5446 treats a blank password as zero length. MSIE treats it as no
5447 password on export: but it will try both on import. We now do
5448 the same: PKCS12_parse() tries zero length and no password if
5449 the password is set to "" or NULL (NULL is now a valid password:
5450 it wasn't before) as does the pkcs12 application.
5453 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
5454 perror when PEM_read_bio_X509_REQ fails, the error message must
5455 be obtained from the error queue.
5458 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
5459 it in ERR_remove_state if appropriate, and change ERR_get_state
5460 accordingly to avoid race conditions (this is necessary because
5461 thread_hash is no longer constant once set).
5464 *) Bugfix for linux-elf makefile.one.
5467 *) RSA_get_default_method() will now cause a default
5468 RSA_METHOD to be chosen if one doesn't exist already.
5469 Previously this was only set during a call to RSA_new()
5470 or RSA_new_method(NULL) meaning it was possible for
5471 RSA_get_default_method() to return NULL.
5474 *) Added native name translation to the existing DSO code
5475 that will convert (if the flag to do so is set) filenames
5476 that are sufficiently small and have no path information
5477 into a canonical native form. Eg. "blah" converted to
5478 "libblah.so" or "blah.dll" etc.
5481 *) New function ERR_error_string_n(e, buf, len) which is like
5482 ERR_error_string(e, buf), but writes at most 'len' bytes
5483 including the 0 terminator. For ERR_error_string_n, 'buf'
5485 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
5487 *) CONF library reworked to become more general. A new CONF
5488 configuration file reader "class" is implemented as well as a
5489 new functions (NCONF_*, for "New CONF") to handle it. The now
5490 old CONF_* functions are still there, but are reimplemented to
5491 work in terms of the new functions. Also, a set of functions
5492 to handle the internal storage of the configuration data is
5493 provided to make it easier to write new configuration file
5494 reader "classes" (I can definitely see something reading a
5495 configuration file in XML format, for example), called _CONF_*,
5496 or "the configuration storage API"...
5498 The new configuration file reading functions are:
5500 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
5501 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
5503 NCONF_default, NCONF_WIN32
5505 NCONF_dump_fp, NCONF_dump_bio
5507 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
5508 NCONF_new creates a new CONF object. This works in the same way
5509 as other interfaces in OpenSSL, like the BIO interface.
5510 NCONF_dump_* dump the internal storage of the configuration file,
5511 which is useful for debugging. All other functions take the same
5512 arguments as the old CONF_* functions wth the exception of the
5513 first that must be a `CONF *' instead of a `LHASH *'.
5515 To make it easer to use the new classes with the old CONF_* functions,
5516 the function CONF_set_default_method is provided.
5519 *) Add '-tls1' option to 'openssl ciphers', which was already
5520 mentioned in the documentation but had not been implemented.
5521 (This option is not yet really useful because even the additional
5522 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
5525 *) Initial DSO code added into libcrypto for letting OpenSSL (and
5526 OpenSSL-based applications) load shared libraries and bind to
5527 them in a portable way.
5528 [Geoff Thorpe, with contributions from Richard Levitte]
5530 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
5532 *) Make sure _lrotl and _lrotr are only used with MSVC.
5534 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
5535 (the default implementation of RAND_status).
5537 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
5538 to '-clrext' (= clear extensions), as intended and documented.
5539 [Bodo Moeller; inconsistency pointed out by Michael Attili
5542 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
5543 was larger than the MD block size.
5544 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
5546 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
5547 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
5548 using the passed key: if the passed key was a private key the result
5549 of X509_print(), for example, would be to print out all the private key
5553 *) des_quad_cksum() byte order bug fix.
5554 [Ulf Möller, using the problem description in krb4-0.9.7, where
5555 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
5557 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
5559 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
5561 *) For easily testing in shell scripts whether some command
5562 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
5563 returns with exit code 0 iff no command of the given name is available.
5564 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
5565 the output goes to stdout and nothing is printed to stderr.
5566 Additional arguments are always ignored.
5568 Since for each cipher there is a command of the same name,
5569 the 'no-cipher' compilation switches can be tested this way.
5571 ('openssl no-XXX' is not able to detect pseudo-commands such
5572 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
5575 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
5578 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
5579 is set; it will be thrown away anyway because each handshake creates
5581 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
5582 to parameters -- in previous versions (since OpenSSL 0.9.3) the
5583 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
5584 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
5587 *) New s_client option -ign_eof: EOF at stdin is ignored, and
5588 'Q' and 'R' lose their special meanings (quit/renegotiate).
5589 This is part of what -quiet does; unlike -quiet, -ign_eof
5590 does not suppress any output.
5593 *) Add compatibility options to the purpose and trust code. The
5594 purpose X509_PURPOSE_ANY is "any purpose" which automatically
5595 accepts a certificate or CA, this was the previous behaviour,
5596 with all the associated security issues.
5598 X509_TRUST_COMPAT is the old trust behaviour: only and
5599 automatically trust self signed roots in certificate store. A
5600 new trust setting X509_TRUST_DEFAULT is used to specify that
5601 a purpose has no associated trust setting and it should instead
5602 use the value in the default purpose.
5605 *) Fix the PKCS#8 DSA private key code so it decodes keys again
5606 and fix a memory leak.
5609 *) In util/mkerr.pl (which implements 'make errors'), preserve
5610 reason strings from the previous version of the .c file, as
5611 the default to have only downcase letters (and digits) in
5612 automatically generated reasons codes is not always appropriate.
5615 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
5616 using strerror. Previously, ERR_reason_error_string() returned
5617 library names as reason strings for SYSerr; but SYSerr is a special
5618 case where small numbers are errno values, not library numbers.
5621 *) Add '-dsaparam' option to 'openssl dhparam' application. This
5622 converts DSA parameters into DH parameters. (When creating parameters,
5623 DSA_generate_parameters is used.)
5626 *) Include 'length' (recommended exponent length) in C code generated
5627 by 'openssl dhparam -C'.
5630 *) The second argument to set_label in perlasm was already being used
5631 so couldn't be used as a "file scope" flag. Moved to third argument
5635 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
5636 instead of RAND_bytes for encryption IVs and salts.
5639 *) Include RAND_status() into RAND_METHOD instead of implementing
5640 it only for md_rand.c Otherwise replacing the PRNG by calling
5641 RAND_set_rand_method would be impossible.
5644 *) Don't let DSA_generate_key() enter an infinite loop if the random
5645 number generation fails.
5648 *) New 'rand' application for creating pseudo-random output.
5651 *) Added configuration support for Linux/IA64
5652 [Rolf Haberrecker <rolf@suse.de>]
5654 *) Assembler module support for Mingw32.
5657 *) Shared library support for HPUX (in shlib/).
5658 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
5660 *) Shared library support for Solaris gcc.
5661 [Lutz Behnke <behnke@trustcenter.de>]
5663 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
5665 *) PKCS7_encrypt() was adding text MIME headers twice because they
5666 were added manually and by SMIME_crlf_copy().
5669 *) In bntest.c don't call BN_rand with zero bits argument.
5670 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
5672 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
5673 case was implemented. This caused BN_div_recp() to fail occasionally.
5676 *) Add an optional second argument to the set_label() in the perl
5677 assembly language builder. If this argument exists and is set
5678 to 1 it signals that the assembler should use a symbol whose
5679 scope is the entire file, not just the current function. This
5680 is needed with MASM which uses the format label:: for this scope.
5681 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
5683 *) Change the ASN1 types so they are typedefs by default. Before
5684 almost all types were #define'd to ASN1_STRING which was causing
5685 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
5689 *) Change names of new functions to the new get1/get0 naming
5690 convention: After 'get1', the caller owns a reference count
5691 and has to call ..._free; 'get0' returns a pointer to some
5692 data structure without incrementing reference counters.
5693 (Some of the existing 'get' functions increment a reference
5694 counter, some don't.)
5695 Similarly, 'set1' and 'add1' functions increase reference
5696 counters or duplicate objects.
5699 *) Allow for the possibility of temp RSA key generation failure:
5700 the code used to assume it always worked and crashed on failure.
5703 *) Fix potential buffer overrun problem in BIO_printf().
5704 [Ulf Möller, using public domain code by Patrick Powell; problem
5705 pointed out by David Sacerdote <das33@cornell.edu>]
5707 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
5708 RAND_egd() and RAND_status(). In the command line application,
5709 the EGD socket can be specified like a seed file using RANDFILE
5713 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
5714 Some CAs (e.g. Verisign) distribute certificates in this form.
5717 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
5718 list to exclude them. This means that no special compilation option
5719 is needed to use anonymous DH: it just needs to be included in the
5723 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
5724 EVP_MD_type. The old functionality is available in a new macro called
5725 EVP_MD_md(). Change code that uses it and update docs.
5728 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
5729 where the 'void *' argument is replaced by a function pointer argument.
5730 Previously 'void *' was abused to point to functions, which works on
5731 many platforms, but is not correct. As these functions are usually
5732 called by macros defined in OpenSSL header files, most source code
5733 should work without changes.
5736 *) <openssl/opensslconf.h> (which is created by Configure) now contains
5737 sections with information on -D... compiler switches used for
5738 compiling the library so that applications can see them. To enable
5739 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
5740 must be defined. E.g.,
5741 #define OPENSSL_ALGORITHM_DEFINES
5742 #include <openssl/opensslconf.h>
5743 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
5744 [Richard Levitte, Ulf and Bodo Möller]
5746 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
5750 *) Change the 'other' type in certificate aux info to a STACK_OF
5751 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
5752 the required ASN1 format: arbitrary types determined by an OID.
5755 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
5756 argument to 'req'. This is not because the function is newer or
5757 better than others it just uses the work 'NEW' in the certificate
5758 request header lines. Some software needs this.
5761 *) Reorganise password command line arguments: now passwords can be
5762 obtained from various sources. Delete the PEM_cb function and make
5763 it the default behaviour: i.e. if the callback is NULL and the
5764 usrdata argument is not NULL interpret it as a null terminated pass
5765 phrase. If usrdata and the callback are NULL then the pass phrase
5766 is prompted for as usual.
5769 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
5770 the support is automatically enabled. The resulting binaries will
5771 autodetect the card and use it if present.
5772 [Ben Laurie and Compaq Inc.]
5774 *) Work around for Netscape hang bug. This sends certificate request
5775 and server done in one record. Since this is perfectly legal in the
5776 SSL/TLS protocol it isn't a "bug" option and is on by default. See
5777 the bugs/SSLv3 entry for more info.
5780 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
5783 *) Add -rand argument to smime and pkcs12 applications and read/write
5787 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
5790 *) Add command line password options to the remaining applications.
5793 *) Bug fix for BN_div_recp() for numerators with an even number of
5797 *) More tests in bntest.c, and changed test_bn output.
5800 *) ./config recognizes MacOS X now.
5803 *) Bug fix for BN_div() when the first words of num and divsor are
5804 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
5807 *) Add support for various broken PKCS#8 formats, and command line
5808 options to produce them.
5811 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
5812 get temporary BIGNUMs from a BN_CTX.
5815 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
5819 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
5820 include a #define from the old name to the new. The original intent
5821 was that statically linked binaries could for example just call
5822 SSLeay_add_all_ciphers() to just add ciphers to the table and not
5823 link with digests. This never worked becayse SSLeay_add_all_digests()
5824 and SSLeay_add_all_ciphers() were in the same source file so calling
5825 one would link with the other. They are now in separate source files.
5828 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
5831 *) Use a less unusual form of the Miller-Rabin primality test (it used
5832 a binary algorithm for exponentiation integrated into the Miller-Rabin
5833 loop, our standard modexp algorithms are faster).
5836 *) Support for the EBCDIC character set completed.
5837 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
5839 *) Source code cleanups: use const where appropriate, eliminate casts,
5840 use void * instead of char * in lhash.
5843 *) Bugfix: ssl3_send_server_key_exchange was not restartable
5844 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
5845 this the server could overwrite ephemeral keys that the client
5849 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
5850 using 50 iterations of the Rabin-Miller test.
5852 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
5853 iterations of the Rabin-Miller test as required by the appendix
5854 to FIPS PUB 186[-1]) instead of DSA_is_prime.
5855 As BN_is_prime_fasttest includes trial division, DSA parameter
5856 generation becomes much faster.
5858 This implies a change for the callback functions in DSA_is_prime
5859 and DSA_generate_parameters: The callback function is called once
5860 for each positive witness in the Rabin-Miller test, not just
5861 occasionally in the inner loop; and the parameters to the
5862 callback function now provide an iteration count for the outer
5863 loop rather than for the current invocation of the inner loop.
5864 DSA_generate_parameters additionally can call the callback
5865 function with an 'iteration count' of -1, meaning that a
5866 candidate has passed the trial division test (when q is generated
5867 from an application-provided seed, trial division is skipped).
5870 *) New function BN_is_prime_fasttest that optionally does trial
5871 division before starting the Rabin-Miller test and has
5872 an additional BN_CTX * argument (whereas BN_is_prime always
5873 has to allocate at least one BN_CTX).
5874 'callback(1, -1, cb_arg)' is called when a number has passed the
5875 trial division stage.
5878 *) Fix for bug in CRL encoding. The validity dates weren't being handled
5882 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
5885 *) New function BN_pseudo_rand().
5888 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
5889 bignum version of BN_from_montgomery() with the working code from
5890 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
5894 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
5895 made it impossible to use the same SSL_SESSION data structure in
5896 SSL2 clients in multiple threads.
5899 *) The return value of RAND_load_file() no longer counts bytes obtained
5900 by stat(). RAND_load_file(..., -1) is new and uses the complete file
5901 to seed the PRNG (previously an explicit byte count was required).
5902 [Ulf Möller, Bodo Möller]
5904 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
5905 used (char *) instead of (void *) and had casts all over the place.
5908 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
5911 *) Retain source code compatibility for BN_prime_checks macro:
5912 BN_is_prime(..., BN_prime_checks, ...) now uses
5913 BN_prime_checks_for_size to determine the appropriate number of
5914 Rabin-Miller iterations.
5917 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
5918 DH_CHECK_P_NOT_SAFE_PRIME.
5919 (Check if this is true? OpenPGP calls them "strong".)
5922 *) Merge the functionality of "dh" and "gendh" programs into a new program
5923 "dhparam". The old programs are retained for now but will handle DH keys
5924 (instead of parameters) in future.
5927 *) Make the ciphers, s_server and s_client programs check the return values
5928 when a new cipher list is set.
5931 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
5932 ciphers. Before when the 56bit ciphers were enabled the sorting was
5935 The syntax for the cipher sorting has been extended to support sorting by
5936 cipher-strength (using the strength_bits hard coded in the tables).
5937 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
5939 Fix a bug in the cipher-command parser: when supplying a cipher command
5940 string with an "undefined" symbol (neither command nor alphanumeric
5941 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
5942 an error is flagged.
5944 Due to the strength-sorting extension, the code of the
5945 ssl_create_cipher_list() function was completely rearranged. I hope that
5946 the readability was also increased :-)
5947 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5949 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
5950 for the first serial number and places 2 in the serial number file. This
5951 avoids problems when the root CA is created with serial number zero and
5952 the first user certificate has the same issuer name and serial number
5956 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
5957 the new code. Add documentation for this stuff.
5960 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
5961 X509_*() to X509at_*() on the grounds that they don't handle X509
5962 structures and behave in an analagous way to the X509v3 functions:
5963 they shouldn't be called directly but wrapper functions should be used
5966 So we also now have some wrapper functions that call the X509at functions
5967 when passed certificate requests. (TO DO: similar things can be done with
5968 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
5969 things. Some of these need some d2i or i2d and print functionality
5970 because they handle more complex structures.)
5973 *) Add missing #ifndefs that caused missing symbols when building libssl
5974 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
5975 NO_RSA in ssl/s2*.c.
5976 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
5978 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
5979 has a return value which indicates the quality of the random data
5980 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
5981 error queue. New function RAND_pseudo_bytes() generates output that is
5982 guaranteed to be unique but not unpredictable. RAND_add is like
5983 RAND_seed, but takes an extra argument for an entropy estimate
5984 (RAND_seed always assumes full entropy).
5987 *) Do more iterations of Rabin-Miller probable prime test (specifically,
5988 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
5989 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
5990 in crypto/bn/bn_prime.c for the complete table). This guarantees a
5991 false-positive rate of at most 2^-80 for random input.
5994 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
5997 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
5998 in the 0.9.5 release), this returns the chain
5999 from an X509_CTX structure with a dup of the stack and all
6000 the X509 reference counts upped: so the stack will exist
6001 after X509_CTX_cleanup() has been called. Modify pkcs12.c
6004 Also make SSL_SESSION_print() print out the verify return
6008 *) Add manpage for the pkcs12 command. Also change the default
6009 behaviour so MAC iteration counts are used unless the new
6010 -nomaciter option is used. This improves file security and
6011 only older versions of MSIE (4.0 for example) need it.
6014 *) Honor the no-xxx Configure options when creating .DEF files.
6017 *) Add PKCS#10 attributes to field table: challengePassword,
6018 unstructuredName and unstructuredAddress. These are taken from
6019 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
6020 international characters are used.
6022 More changes to X509_ATTRIBUTE code: allow the setting of types
6023 based on strings. Remove the 'loc' parameter when adding
6024 attributes because these will be a SET OF encoding which is sorted
6028 *) Initial changes to the 'req' utility to allow request generation
6029 automation. This will allow an application to just generate a template
6030 file containing all the field values and have req construct the
6033 Initial support for X509_ATTRIBUTE handling. Stacks of these are
6034 used all over the place including certificate requests and PKCS#7
6035 structures. They are currently handled manually where necessary with
6036 some primitive wrappers for PKCS#7. The new functions behave in a
6037 manner analogous to the X509 extension functions: they allow
6038 attributes to be looked up by NID and added.
6040 Later something similar to the X509V3 code would be desirable to
6041 automatically handle the encoding, decoding and printing of the
6042 more complex types. The string types like challengePassword can
6043 be handled by the string table functions.
6045 Also modified the multi byte string table handling. Now there is
6046 a 'global mask' which masks out certain types. The table itself
6047 can use the flag STABLE_NO_MASK to ignore the mask setting: this
6048 is useful when for example there is only one permissible type
6049 (as in countryName) and using the mask might result in no valid
6053 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
6054 SSL_get_peer_finished to allow applications to obtain the latest
6055 Finished messages sent to the peer or expected from the peer,
6056 respectively. (SSL_get_peer_finished is usually the Finished message
6057 actually received from the peer, otherwise the protocol will be aborted.)
6059 As the Finished message are message digests of the complete handshake
6060 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
6061 be used for external authentication procedures when the authentication
6062 provided by SSL/TLS is not desired or is not enough.
6065 *) Enhanced support for Alpha Linux is added. Now ./config checks if
6066 the host supports BWX extension and if Compaq C is present on the
6067 $PATH. Just exploiting of the BWX extension results in 20-30%
6068 performance kick for some algorithms, e.g. DES and RC4 to mention
6069 a couple. Compaq C in turn generates ~20% faster code for MD5 and
6073 *) Add support for MS "fast SGC". This is arguably a violation of the
6074 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
6075 weak crypto and after checking the certificate is SGC a second one
6076 with strong crypto. MS SGC stops the first handshake after receiving
6077 the server certificate message and sends a second client hello. Since
6078 a server will typically do all the time consuming operations before
6079 expecting any further messages from the client (server key exchange
6080 is the most expensive) there is little difference between the two.
6082 To get OpenSSL to support MS SGC we have to permit a second client
6083 hello message after we have sent server done. In addition we have to
6084 reset the MAC if we do get this second client hello.
6087 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
6088 if a DER encoded private key is RSA or DSA traditional format. Changed
6089 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
6090 format DER encoded private key. Newer code should use PKCS#8 format which
6091 has the key type encoded in the ASN1 structure. Added DER private key
6092 support to pkcs8 application.
6095 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
6096 ciphersuites has been selected (as required by the SSL 3/TLS 1
6097 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
6098 is set, we interpret this as a request to violate the specification
6099 (the worst that can happen is a handshake failure, and 'correct'
6100 behaviour would result in a handshake failure anyway).
6103 *) In SSL_CTX_add_session, take into account that there might be multiple
6104 SSL_SESSION structures with the same session ID (e.g. when two threads
6105 concurrently obtain them from an external cache).
6106 The internal cache can handle only one SSL_SESSION with a given ID,
6107 so if there's a conflict, we now throw out the old one to achieve
6111 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
6112 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
6113 some routines that use cipher OIDs: some ciphers do not have OIDs
6114 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
6118 *) Simplify the trust setting structure and code. Now we just have
6119 two sequences of OIDs for trusted and rejected settings. These will
6120 typically have values the same as the extended key usage extension
6121 and any application specific purposes.
6123 The trust checking code now has a default behaviour: it will just
6124 check for an object with the same NID as the passed id. Functions can
6125 be provided to override either the default behaviour or the behaviour
6126 for a given id. SSL client, server and email already have functions
6127 in place for compatibility: they check the NID and also return "trusted"
6128 if the certificate is self signed.
6131 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
6132 traditional format into an EVP_PKEY structure.
6135 *) Add a password callback function PEM_cb() which either prompts for
6136 a password if usr_data is NULL or otherwise assumes it is a null
6137 terminated password. Allow passwords to be passed on command line
6138 environment or config files in a few more utilities.
6141 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
6142 keys. Add some short names for PKCS#8 PBE algorithms and allow them
6143 to be specified on the command line for the pkcs8 and pkcs12 utilities.
6144 Update documentation.
6147 *) Support for ASN1 "NULL" type. This could be handled before by using
6148 ASN1_TYPE but there wasn't any function that would try to read a NULL
6149 and produce an error if it couldn't. For compatibility we also have
6150 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
6151 don't allocate anything because they don't need to.
6154 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
6156 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
6158 *) Rebuild of the memory allocation routines used by OpenSSL code and
6159 possibly others as well. The purpose is to make an interface that
6160 provide hooks so anyone can build a separate set of allocation and
6161 deallocation routines to be used by OpenSSL, for example memory
6162 pool implementations, or something else, which was previously hard
6163 since Malloc(), Realloc() and Free() were defined as macros having
6164 the values malloc, realloc and free, respectively (except for Win32
6165 compilations). The same is provided for memory debugging code.
6166 OpenSSL already comes with functionality to find memory leaks, but
6167 this gives people a chance to debug other memory problems.
6169 With these changes, a new set of functions and macros have appeared:
6171 CRYPTO_set_mem_debug_functions() [F]
6172 CRYPTO_get_mem_debug_functions() [F]
6173 CRYPTO_dbg_set_options() [F]
6174 CRYPTO_dbg_get_options() [F]
6175 CRYPTO_malloc_debug_init() [M]
6177 The memory debug functions are NULL by default, unless the library
6178 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
6179 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
6180 gives the standard debugging functions that come with OpenSSL) or
6181 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
6182 provided by the library user) must be used. When the standard
6183 debugging functions are used, CRYPTO_dbg_set_options can be used to
6184 request additional information:
6185 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
6186 the CRYPTO_MDEBUG_xxx macro when compiling the library.
6188 Also, things like CRYPTO_set_mem_functions will always give the
6189 expected result (the new set of functions is used for allocation
6190 and deallocation) at all times, regardless of platform and compiler
6193 To finish it up, some functions that were never use in any other
6194 way than through macros have a new API and new semantic:
6197 CRYPTO_dbg_realloc()
6200 All macros of value have retained their old syntax.
6201 [Richard Levitte and Bodo Moeller]
6203 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
6204 ordering of SMIMECapabilities wasn't in "strength order" and there
6205 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
6209 *) Some ASN1 types with illegal zero length encoding (INTEGER,
6210 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
6211 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
6213 *) Merge in my S/MIME library for OpenSSL. This provides a simple
6214 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
6215 functionality to handle multipart/signed properly) and a utility
6216 called 'smime' to call all this stuff. This is based on code I
6217 originally wrote for Celo who have kindly allowed it to be
6218 included in OpenSSL.
6221 *) Add variants des_set_key_checked and des_set_key_unchecked of
6222 des_set_key (aka des_key_sched). Global variable des_check_key
6223 decides which of these is called by des_set_key; this way
6224 des_check_key behaves as it always did, but applications and
6225 the library itself, which was buggy for des_check_key == 1,
6226 have a cleaner way to pick the version they need.
6229 *) New function PKCS12_newpass() which changes the password of a
6233 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
6234 dynamic mix. In both cases the ids can be used as an index into the
6235 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
6236 functions so they accept a list of the field values and the
6237 application doesn't need to directly manipulate the X509_TRUST
6241 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
6245 *) Modify the way the V3 extension code looks up extensions. This now
6246 works in a similar way to the object code: we have some "standard"
6247 extensions in a static table which is searched with OBJ_bsearch()
6248 and the application can add dynamic ones if needed. The file
6249 crypto/x509v3/ext_dat.h now has the info: this file needs to be
6250 updated whenever a new extension is added to the core code and kept
6251 in ext_nid order. There is a simple program 'tabtest.c' which checks
6252 this. New extensions are not added too often so this file can readily
6253 be maintained manually.
6255 There are two big advantages in doing things this way. The extensions
6256 can be looked up immediately and no longer need to be "added" using
6257 X509V3_add_standard_extensions(): this function now does nothing.
6258 [Side note: I get *lots* of email saying the extension code doesn't
6259 work because people forget to call this function]
6260 Also no dynamic allocation is done unless new extensions are added:
6261 so if we don't add custom extensions there is no need to call
6262 X509V3_EXT_cleanup().
6265 *) Modify enc utility's salting as follows: make salting the default. Add a
6266 magic header, so unsalted files fail gracefully instead of just decrypting
6267 to garbage. This is because not salting is a big security hole, so people
6268 should be discouraged from doing it.
6271 *) Fixes and enhancements to the 'x509' utility. It allowed a message
6272 digest to be passed on the command line but it only used this
6273 parameter when signing a certificate. Modified so all relevant
6274 operations are affected by the digest parameter including the
6275 -fingerprint and -x509toreq options. Also -x509toreq choked if a
6276 DSA key was used because it didn't fix the digest.
6279 *) Initial certificate chain verify code. Currently tests the untrusted
6280 certificates for consistency with the verify purpose (which is set
6281 when the X509_STORE_CTX structure is set up) and checks the pathlength.
6283 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
6284 this is because it will reject chains with invalid extensions whereas
6285 every previous version of OpenSSL and SSLeay made no checks at all.
6287 Trust code: checks the root CA for the relevant trust settings. Trust
6288 settings have an initial value consistent with the verify purpose: e.g.
6289 if the verify purpose is for SSL client use it expects the CA to be
6290 trusted for SSL client use. However the default value can be changed to
6291 permit custom trust settings: one example of this would be to only trust
6292 certificates from a specific "secure" set of CAs.
6294 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
6295 which should be used for version portability: especially since the
6296 verify structure is likely to change more often now.
6298 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
6299 to set them. If not set then assume SSL clients will verify SSL servers
6302 Two new options to the verify program: -untrusted allows a set of
6303 untrusted certificates to be passed in and -purpose which sets the
6304 intended purpose of the certificate. If a purpose is set then the
6305 new chain verify code is used to check extension consistency.
6308 *) Support for the authority information access extension.
6311 *) Modify RSA and DSA PEM read routines to transparently handle
6312 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
6313 public keys in a format compatible with certificate
6314 SubjectPublicKeyInfo structures. Unfortunately there were already
6315 functions called *_PublicKey_* which used various odd formats so
6316 these are retained for compatibility: however the DSA variants were
6317 never in a public release so they have been deleted. Changed dsa/rsa
6318 utilities to handle the new format: note no releases ever handled public
6319 keys so we should be OK.
6321 The primary motivation for this change is to avoid the same fiasco
6322 that dogs private keys: there are several incompatible private key
6323 formats some of which are standard and some OpenSSL specific and
6324 require various evil hacks to allow partial transparent handling and
6325 even then it doesn't work with DER formats. Given the option anything
6326 other than PKCS#8 should be dumped: but the other formats have to
6327 stay in the name of compatibility.
6329 With public keys and the benefit of hindsight one standard format
6330 is used which works with EVP_PKEY, RSA or DSA structures: though
6331 it clearly returns an error if you try to read the wrong kind of key.
6333 Added a -pubkey option to the 'x509' utility to output the public key.
6334 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
6335 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
6336 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
6337 that do the same as the EVP_PKEY_assign_*() except they up the
6338 reference count of the added key (they don't "swallow" the
6342 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
6343 CRLs would fail if the file contained no certificates or no CRLs:
6344 added a new function to read in both types and return the number
6345 read: this means that if none are read it will be an error. The
6346 DER versions of the certificate and CRL reader would always fail
6347 because it isn't possible to mix certificates and CRLs in DER format
6348 without choking one or the other routine. Changed this to just read
6349 a certificate: this is the best we can do. Also modified the code
6350 in apps/verify.c to take notice of return codes: it was previously
6351 attempting to read in certificates from NULL pointers and ignoring
6352 any errors: this is one reason why the cert and CRL reader seemed
6353 to work. It doesn't check return codes from the default certificate
6354 routines: these may well fail if the certificates aren't installed.
6357 *) Code to support otherName option in GeneralName.
6360 *) First update to verify code. Change the verify utility
6361 so it warns if it is passed a self signed certificate:
6362 for consistency with the normal behaviour. X509_verify
6363 has been modified to it will now verify a self signed
6364 certificate if *exactly* the same certificate appears
6365 in the store: it was previously impossible to trust a
6366 single self signed certificate. This means that:
6367 openssl verify ss.pem
6368 now gives a warning about a self signed certificate but
6369 openssl verify -CAfile ss.pem ss.pem
6373 *) For servers, store verify_result in SSL_SESSION data structure
6374 (and add it to external session representation).
6375 This is needed when client certificate verifications fails,
6376 but an application-provided verification callback (set by
6377 SSL_CTX_set_cert_verify_callback) allows accepting the session
6378 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
6379 but returns 1): When the session is reused, we have to set
6380 ssl->verify_result to the appropriate error code to avoid
6382 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
6384 *) Fix a bug in the new PKCS#7 code: it didn't consider the
6385 case in PKCS7_dataInit() where the signed PKCS7 structure
6386 didn't contain any existing data because it was being created.
6387 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
6389 *) Add a salt to the key derivation routines in enc.c. This
6390 forms the first 8 bytes of the encrypted file. Also add a
6391 -S option to allow a salt to be input on the command line.
6394 *) New function X509_cmp(). Oddly enough there wasn't a function
6395 to compare two certificates. We do this by working out the SHA1
6396 hash and comparing that. X509_cmp() will be needed by the trust
6400 *) SSL_get1_session() is like SSL_get_session(), but increments
6401 the reference count in the SSL_SESSION returned.
6402 [Geoff Thorpe <geoff@eu.c2.net>]
6404 *) Fix for 'req': it was adding a null to request attributes.
6405 Also change the X509_LOOKUP and X509_INFO code to handle
6406 certificate auxiliary information.
6409 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
6413 *) Add the possibility to add extra information to the memory leak
6414 detecting output, to form tracebacks, showing from where each
6415 allocation was originated: CRYPTO_push_info("constant string") adds
6416 the string plus current file name and line number to a per-thread
6417 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
6418 is like calling CYRPTO_pop_info() until the stack is empty.
6419 Also updated memory leak detection code to be multi-thread-safe.
6422 *) Add options -text and -noout to pkcs7 utility and delete the
6423 encryption options which never did anything. Update docs.
6426 *) Add options to some of the utilities to allow the pass phrase
6427 to be included on either the command line (not recommended on
6428 OSes like Unix) or read from the environment. Update the
6429 manpages and fix a few bugs.
6432 *) Add a few manpages for some of the openssl commands.
6435 *) Fix the -revoke option in ca. It was freeing up memory twice,
6436 leaking and not finding already revoked certificates.
6439 *) Extensive changes to support certificate auxiliary information.
6440 This involves the use of X509_CERT_AUX structure and X509_AUX
6441 functions. An X509_AUX function such as PEM_read_X509_AUX()
6442 can still read in a certificate file in the usual way but it
6443 will also read in any additional "auxiliary information". By
6444 doing things this way a fair degree of compatibility can be
6445 retained: existing certificates can have this information added
6446 using the new 'x509' options.
6448 Current auxiliary information includes an "alias" and some trust
6449 settings. The trust settings will ultimately be used in enhanced
6450 certificate chain verification routines: currently a certificate
6451 can only be trusted if it is self signed and then it is trusted
6455 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
6456 The problem was that one of the replacement routines had not been working
6457 since SSLeay releases. For now the offending routine has been replaced
6458 with non-optimised assembler. Even so, this now gives around 95%
6459 performance improvement for 1024 bit RSA signs.
6462 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
6463 handling. Most clients have the effective key size in bits equal to
6464 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
6465 A few however don't do this and instead use the size of the decrypted key
6466 to determine the RC2 key length and the AlgorithmIdentifier to determine
6467 the effective key length. In this case the effective key length can still
6468 be 40 bits but the key length can be 168 bits for example. This is fixed
6469 by manually forcing an RC2 key into the EVP_PKEY structure because the
6470 EVP code can't currently handle unusual RC2 key sizes: it always assumes
6471 the key length and effective key length are equal.
6474 *) Add a bunch of functions that should simplify the creation of
6475 X509_NAME structures. Now you should be able to do:
6476 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
6477 and have it automatically work out the correct field type and fill in
6478 the structures. The more adventurous can try:
6479 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
6480 and it will (hopefully) work out the correct multibyte encoding.
6483 *) Change the 'req' utility to use the new field handling and multibyte
6484 copy routines. Before the DN field creation was handled in an ad hoc
6485 way in req, ca, and x509 which was rather broken and didn't support
6486 BMPStrings or UTF8Strings. Since some software doesn't implement
6487 BMPStrings or UTF8Strings yet, they can be enabled using the config file
6488 using the dirstring_type option. See the new comment in the default
6489 openssl.cnf for more info.
6492 *) Make crypto/rand/md_rand.c more robust:
6493 - Assure unique random numbers after fork().
6494 - Make sure that concurrent threads access the global counter and
6495 md serializably so that we never lose entropy in them
6496 or use exactly the same state in multiple threads.
6497 Access to the large state is not always serializable because
6498 the additional locking could be a performance killer, and
6499 md should be large enough anyway.
6502 *) New file apps/app_rand.c with commonly needed functionality
6503 for handling the random seed file.
6505 Use the random seed file in some applications that previously did not:
6507 dsaparam -genkey (which also ignored its '-rand' option),
6510 x509 (when signing).
6511 Except on systems with /dev/urandom, it is crucial to have a random
6512 seed file at least for key creation, DSA signing, and for DH exchanges;
6513 for RSA signatures we could do without one.
6515 gendh and gendsa (unlike genrsa) used to read only the first byte
6516 of each file listed in the '-rand' option. The function as previously
6517 found in genrsa is now in app_rand.c and is used by all programs
6518 that support '-rand'.
6521 *) In RAND_write_file, use mode 0600 for creating files;
6522 don't just chmod when it may be too late.
6525 *) Report an error from X509_STORE_load_locations
6526 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
6529 *) New function ASN1_mbstring_copy() this copies a string in either
6530 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
6531 into an ASN1_STRING type. A mask of permissible types is passed
6532 and it chooses the "minimal" type to use or an error if not type
6536 *) Add function equivalents to the various macros in asn1.h. The old
6537 macros are retained with an M_ prefix. Code inside the library can
6538 use the M_ macros. External code (including the openssl utility)
6539 should *NOT* in order to be "shared library friendly".
6542 *) Add various functions that can check a certificate's extensions
6543 to see if it usable for various purposes such as SSL client,
6544 server or S/MIME and CAs of these types. This is currently
6545 VERY EXPERIMENTAL but will ultimately be used for certificate chain
6546 verification. Also added a -purpose flag to x509 utility to
6547 print out all the purposes.
6550 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
6554 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
6555 for, obtain and decode and extension and obtain its critical flag.
6556 This allows all the necessary extension code to be handled in a
6557 single function call.
6560 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
6561 platforms. See crypto/rc4/rc4_enc.c for further details.
6564 *) New -noout option to asn1parse. This causes no output to be produced
6565 its main use is when combined with -strparse and -out to extract data
6566 from a file (which may not be in ASN.1 format).
6569 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
6570 when producing the local key id.
6571 [Richard Levitte <levitte@stacken.kth.se>]
6573 *) New option -dhparam in s_server. This allows a DH parameter file to be
6574 stated explicitly. If it is not stated then it tries the first server
6575 certificate file. The previous behaviour hard coded the filename
6579 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
6580 a public key to be input or output. For example:
6581 openssl rsa -in key.pem -pubout -out pubkey.pem
6582 Also added necessary DSA public key functions to handle this.
6585 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
6586 in the message. This was handled by allowing
6587 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
6588 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
6590 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
6591 to the end of the strings whereas this didn't. This would cause problems
6592 if strings read with d2i_ASN1_bytes() were later modified.
6593 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
6595 *) Fix for base64 decode bug. When a base64 bio reads only one line of
6596 data and it contains EOF it will end up returning an error. This is
6597 caused by input 46 bytes long. The cause is due to the way base64
6598 BIOs find the start of base64 encoded data. They do this by trying a
6599 trial decode on each line until they find one that works. When they
6600 do a flag is set and it starts again knowing it can pass all the
6601 data directly through the decoder. Unfortunately it doesn't reset
6602 the context it uses. This means that if EOF is reached an attempt
6603 is made to pass two EOFs through the context and this causes the
6604 resulting error. This can also cause other problems as well. As is
6605 usual with these problems it takes *ages* to find and the fix is
6606 trivial: move one line.
6607 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
6609 *) Ugly workaround to get s_client and s_server working under Windows. The
6610 old code wouldn't work because it needed to select() on sockets and the
6611 tty (for keypresses and to see if data could be written). Win32 only
6612 supports select() on sockets so we select() with a 1s timeout on the
6613 sockets and then see if any characters are waiting to be read, if none
6614 are present then we retry, we also assume we can always write data to
6615 the tty. This isn't nice because the code then blocks until we've
6616 received a complete line of data and it is effectively polling the
6617 keyboard at 1s intervals: however it's quite a bit better than not
6618 working at all :-) A dedicated Windows application might handle this
6619 with an event loop for example.
6622 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
6623 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
6624 will be called when RSA_sign() and RSA_verify() are used. This is useful
6625 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
6626 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
6627 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
6628 This necessitated the support of an extra signature type NID_md5_sha1
6629 for SSL signatures and modifications to the SSL library to use it instead
6630 of calling RSA_public_decrypt() and RSA_private_encrypt().
6633 *) Add new -verify -CAfile and -CApath options to the crl program, these
6634 will lookup a CRL issuers certificate and verify the signature in a
6635 similar way to the verify program. Tidy up the crl program so it
6636 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
6637 less strict. It will now permit CRL extensions even if it is not
6638 a V2 CRL: this will allow it to tolerate some broken CRLs.
6641 *) Initialize all non-automatic variables each time one of the openssl
6642 sub-programs is started (this is necessary as they may be started
6643 multiple times from the "OpenSSL>" prompt).
6644 [Lennart Bang, Bodo Moeller]
6646 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
6647 removing all other RSA functionality (this is what NO_RSA does). This
6648 is so (for example) those in the US can disable those operations covered
6649 by the RSA patent while allowing storage and parsing of RSA keys and RSA
6653 *) Non-copying interface to BIO pairs.
6654 (still largely untested)
6657 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
6658 ASCII string. This was handled independently in various places before.
6661 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
6662 UTF8 strings a character at a time.
6665 *) Use client_version from client hello to select the protocol
6666 (s23_srvr.c) and for RSA client key exchange verification
6667 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
6670 *) Add various utility functions to handle SPKACs, these were previously
6671 handled by poking round in the structure internals. Added new function
6672 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
6673 print, verify and generate SPKACs. Based on an original idea from
6674 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
6677 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
6680 *) Allow the config file extension section to be overwritten on the
6681 command line. Based on an original idea from Massimiliano Pala
6682 <madwolf@comune.modena.it>. The new option is called -extensions
6683 and can be applied to ca, req and x509. Also -reqexts to override
6684 the request extensions in req and -crlexts to override the crl extensions
6688 *) Add new feature to the SPKAC handling in ca. Now you can include
6689 the same field multiple times by preceding it by "XXXX." for example:
6692 this is the same syntax as used in the req config file.
6695 *) Allow certificate extensions to be added to certificate requests. These
6696 are specified in a 'req_extensions' option of the req section of the
6697 config file. They can be printed out with the -text option to req but
6698 are otherwise ignored at present.
6701 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
6702 data read consists of only the final block it would not decrypted because
6703 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
6704 A misplaced 'break' also meant the decrypted final block might not be
6705 copied until the next read.
6708 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
6709 a few extra parameters to the DH structure: these will be useful if
6710 for example we want the value of 'q' or implement X9.42 DH.
6713 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
6714 provides hooks that allow the default DSA functions or functions on a
6715 "per key" basis to be replaced. This allows hardware acceleration and
6716 hardware key storage to be handled without major modification to the
6717 library. Also added low level modexp hooks and CRYPTO_EX structure and
6718 associated functions.
6721 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
6722 as "read only": it can't be written to and the buffer it points to will
6723 not be freed. Reading from a read only BIO is much more efficient than
6724 a normal memory BIO. This was added because there are several times when
6725 an area of memory needs to be read from a BIO. The previous method was
6726 to create a memory BIO and write the data to it, this results in two
6727 copies of the data and an O(n^2) reading algorithm. There is a new
6728 function BIO_new_mem_buf() which creates a read only memory BIO from
6729 an area of memory. Also modified the PKCS#7 routines to use read only
6733 *) Bugfix: ssl23_get_client_hello did not work properly when called in
6734 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
6735 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
6736 but a retry condition occured while trying to read the rest.
6739 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
6740 NID_pkcs7_encrypted by default: this was wrong since this should almost
6741 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
6742 the encrypted data type: this is a more sensible place to put it and it
6743 allows the PKCS#12 code to be tidied up that duplicated this
6747 *) Changed obj_dat.pl script so it takes its input and output files on
6748 the command line. This should avoid shell escape redirection problems
6752 *) Initial support for certificate extension requests, these are included
6753 in things like Xenroll certificate requests. Included functions to allow
6754 extensions to be obtained and added.
6757 *) -crlf option to s_client and s_server for sending newlines as
6758 CRLF (as required by many protocols).
6761 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
6763 *) Install libRSAglue.a when OpenSSL is built with RSAref.
6764 [Ralf S. Engelschall]
6766 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
6767 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
6769 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
6773 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
6774 DH parameters/keys (q is lost during that conversion, but the resulting
6775 DH parameters contain its length).
6777 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
6778 much faster than DH_generate_parameters (which creates parameters
6779 where p = 2*q + 1), and also the smaller q makes DH computations
6780 much more efficient (160-bit exponentiation instead of 1024-bit
6781 exponentiation); so this provides a convenient way to support DHE
6782 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
6783 utter importance to use
6784 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6786 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6787 when such DH parameters are used, because otherwise small subgroup
6788 attacks may become possible!
6791 *) Avoid memory leak in i2d_DHparams.
6794 *) Allow the -k option to be used more than once in the enc program:
6795 this allows the same encrypted message to be read by multiple recipients.
6798 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
6799 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
6800 it will always use the numerical form of the OID, even if it has a short
6804 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
6805 method only got called if p,q,dmp1,dmq1,iqmp components were present,
6806 otherwise bn_mod_exp was called. In the case of hardware keys for example
6807 no private key components need be present and it might store extra data
6808 in the RSA structure, which cannot be accessed from bn_mod_exp.
6809 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
6810 private key operations.
6813 *) Added support for SPARC Linux.
6816 *) pem_password_cb function type incompatibly changed from
6817 typedef int pem_password_cb(char *buf, int size, int rwflag);
6819 ....(char *buf, int size, int rwflag, void *userdata);
6820 so that applications can pass data to their callbacks:
6821 The PEM[_ASN1]_{read,write}... functions and macros now take an
6822 additional void * argument, which is just handed through whenever
6823 the password callback is called.
6824 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
6826 New function SSL_CTX_set_default_passwd_cb_userdata.
6828 Compatibility note: As many C implementations push function arguments
6829 onto the stack in reverse order, the new library version is likely to
6830 interoperate with programs that have been compiled with the old
6831 pem_password_cb definition (PEM_whatever takes some data that
6832 happens to be on the stack as its last argument, and the callback
6833 just ignores this garbage); but there is no guarantee whatsoever that
6836 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
6837 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
6838 problems not only on Windows, but also on some Unix platforms.
6839 To avoid problematic command lines, these definitions are now in an
6840 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
6841 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
6844 *) MIPS III/IV assembler module is reimplemented.
6847 *) More DES library cleanups: remove references to srand/rand and
6848 delete an unused file.
6851 *) Add support for the the free Netwide assembler (NASM) under Win32,
6852 since not many people have MASM (ml) and it can be hard to obtain.
6853 This is currently experimental but it seems to work OK and pass all
6854 the tests. Check out INSTALL.W32 for info.
6857 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
6858 without temporary keys kept an extra copy of the server key,
6859 and connections with temporary keys did not free everything in case
6863 *) New function RSA_check_key and new openssl rsa option -check
6864 for verifying the consistency of RSA keys.
6865 [Ulf Moeller, Bodo Moeller]
6867 *) Various changes to make Win32 compile work:
6868 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
6869 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
6870 comparison" warnings.
6871 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
6874 *) Add a debugging option to PKCS#5 v2 key generation function: when
6875 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
6876 derived keys are printed to stderr.
6879 *) Copy the flags in ASN1_STRING_dup().
6880 [Roman E. Pavlov <pre@mo.msk.ru>]
6882 *) The x509 application mishandled signing requests containing DSA
6883 keys when the signing key was also DSA and the parameters didn't match.
6885 It was supposed to omit the parameters when they matched the signing key:
6886 the verifying software was then supposed to automatically use the CA's
6887 parameters if they were absent from the end user certificate.
6889 Omitting parameters is no longer recommended. The test was also
6890 the wrong way round! This was probably due to unusual behaviour in
6891 EVP_cmp_parameters() which returns 1 if the parameters match.
6892 This meant that parameters were omitted when they *didn't* match and
6893 the certificate was useless. Certificates signed with 'ca' didn't have
6895 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
6897 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
6898 The interface is as follows:
6899 Applications can use
6900 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
6901 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
6902 "off" is now the default.
6903 The library internally uses
6904 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
6905 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
6906 to disable memory-checking temporarily.
6908 Some inconsistent states that previously were possible (and were
6909 even the default) are now avoided.
6911 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
6912 with each memory chunk allocated; this is occasionally more helpful
6913 than just having a counter.
6915 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
6917 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
6921 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
6922 which largely parallels "options", but is for changing API behaviour,
6923 whereas "options" are about protocol behaviour.
6924 Initial "mode" flags are:
6926 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
6927 a single record has been written.
6928 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
6929 retries use the same buffer location.
6930 (But all of the contents must be
6934 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
6937 *) Fix problems with no-hmac etc.
6938 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
6940 *) New functions RSA_get_default_method(), RSA_set_method() and
6941 RSA_get_method(). These allows replacement of RSA_METHODs without having
6942 to mess around with the internals of an RSA structure.
6945 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
6946 Also really enable memory leak checks in openssl.c and in some
6948 [Chad C. Mulligan, Bodo Moeller]
6950 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
6951 up the length of negative integers. This has now been simplified to just
6952 store the length when it is first determined and use it later, rather
6953 than trying to keep track of where data is copied and updating it to
6955 [Steve Henson, reported by Brien Wheeler
6956 <bwheeler@authentica-security.com>]
6958 *) Add a new function PKCS7_signatureVerify. This allows the verification
6959 of a PKCS#7 signature but with the signing certificate passed to the
6960 function itself. This contrasts with PKCS7_dataVerify which assumes the
6961 certificate is present in the PKCS#7 structure. This isn't always the
6962 case: certificates can be omitted from a PKCS#7 structure and be
6963 distributed by "out of band" means (such as a certificate database).
6966 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
6967 function prototypes in pem.h, also change util/mkdef.pl to add the
6968 necessary function names.
6971 *) mk1mf.pl (used by Windows builds) did not properly read the
6972 options set by Configure in the top level Makefile, and Configure
6973 was not even able to write more than one option correctly.
6974 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
6977 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
6978 file to be loaded from a BIO or FILE pointer. The BIO version will
6979 for example allow memory BIOs to contain config info.
6982 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
6983 Whoever hopes to achieve shared-library compatibility across versions
6984 must use this, not the compile-time macro.
6985 (Exercise 0.9.4: Which is the minimum library version required by
6987 Note: All this applies only to multi-threaded programs, others don't
6991 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
6992 through a BIO pair triggered the default case, i.e.
6993 SSLerr(...,SSL_R_UNKNOWN_STATE).
6996 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
6997 can use the SSL library even if none of the specific BIOs is
7001 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
7002 for the encoded length.
7003 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
7005 *) Add initial documentation of the X509V3 functions.
7008 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
7009 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
7010 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
7011 secure PKCS#8 private key format with a high iteration count.
7014 *) Fix determination of Perl interpreter: A perl or perl5
7015 _directory_ in $PATH was also accepted as the interpreter.
7016 [Ralf S. Engelschall]
7018 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
7019 wrong with it but it was very old and did things like calling
7020 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
7024 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
7025 to use the new extension code.
7028 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
7029 with macros. This should make it easier to change their form, add extra
7030 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
7034 *) Add to configuration table a new entry that can specify an alternative
7035 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
7036 according to Mark Crispin <MRC@Panda.COM>.
7040 *) DES CBC did not update the IV. Weird.
7043 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
7044 Changing the behaviour of the former might break existing programs --
7045 where IV updating is needed, des_ncbc_encrypt can be used.
7048 *) When bntest is run from "make test" it drives bc to check its
7049 calculations, as well as internally checking them. If an internal check
7050 fails, it needs to cause bc to give a non-zero result or make test carries
7051 on without noticing the failure. Fixed.
7054 *) DES library cleanups.
7057 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
7058 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
7059 ciphers. NOTE: although the key derivation function has been verified
7060 against some published test vectors it has not been extensively tested
7061 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
7065 *) Instead of "mkdir -p", which is not fully portable, use new
7066 Perl script "util/mkdir-p.pl".
7069 *) Rewrite the way password based encryption (PBE) is handled. It used to
7070 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
7071 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
7072 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
7073 the 'parameter' field of the AlgorithmIdentifier is passed to the
7074 underlying key generation function so it must do its own ASN1 parsing.
7075 This has also changed the EVP_PBE_CipherInit() function which now has a
7076 'parameter' argument instead of literal salt and iteration count values
7077 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
7080 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
7081 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
7082 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
7083 KEY" because this clashed with PKCS#8 unencrypted string. Since this
7084 value was just used as a "magic string" and not used directly its
7085 value doesn't matter.
7088 *) Introduce some semblance of const correctness to BN. Shame C doesn't
7092 *) "linux-sparc64" configuration (ultrapenguin).
7093 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
7094 "linux-sparc" configuration.
7095 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
7097 *) config now generates no-xxx options for missing ciphers.
7100 *) Support the EBCDIC character set (work in progress).
7101 File ebcdic.c not yet included because it has a different license.
7102 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7104 *) Support BS2000/OSD-POSIX.
7105 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7107 *) Make callbacks for key generation use void * instead of char *.
7110 *) Make S/MIME samples compile (not yet tested).
7113 *) Additional typesafe stacks.
7116 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
7120 Changes between 0.9.3 and 0.9.3a [29 May 1999]
7122 *) New configuration variant "sco5-gcc".
7124 *) Updated some demos.
7125 [Sean O Riordain, Wade Scholine]
7127 *) Add missing BIO_free at exit of pkcs12 application.
7130 *) Fix memory leak in conf.c.
7133 *) Updates for Win32 to assembler version of MD5.
7136 *) Set #! path to perl in apps/der_chop to where we found it
7137 instead of using a fixed path.
7140 *) SHA library changes for irix64-mips4-cc.
7143 *) Improvements for VMS support.
7147 Changes between 0.9.2b and 0.9.3 [24 May 1999]
7149 *) Bignum library bug fix. IRIX 6 passes "make test" now!
7150 This also avoids the problems with SC4.2 and unpatched SC5.
7151 [Andy Polyakov <appro@fy.chalmers.se>]
7153 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
7154 These are required because of the typesafe stack would otherwise break
7155 existing code. If old code used a structure member which used to be STACK
7156 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
7157 sk_num or sk_value it would produce an error because the num, data members
7158 are not present in STACK_OF. Now it just produces a warning. sk_set
7159 replaces the old method of assigning a value to sk_value
7160 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
7161 that does this will no longer work (and should use sk_set instead) but
7162 this could be regarded as a "questionable" behaviour anyway.
7165 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
7166 correctly handle encrypted S/MIME data.
7169 *) Change type of various DES function arguments from des_cblock
7170 (which means, in function argument declarations, pointer to char)
7171 to des_cblock * (meaning pointer to array with 8 char elements),
7172 which allows the compiler to do more typechecking; it was like
7173 that back in SSLeay, but with lots of ugly casts.
7175 Introduce new type const_des_cblock.
7178 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
7179 problems: find RecipientInfo structure that matches recipient certificate
7180 and initialise the ASN1 structures properly based on passed cipher.
7183 *) Belatedly make the BN tests actually check the results.
7186 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
7187 to and from BNs: it was completely broken. New compilation option
7188 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
7189 key elements as negative integers.
7192 *) Reorganize and speed up MD5.
7193 [Andy Polyakov <appro@fy.chalmers.se>]
7196 [Richard Levitte <richard@levitte.org>]
7198 *) New option -out to asn1parse to allow the parsed structure to be
7199 output to a file. This is most useful when combined with the -strparse
7200 option to examine the output of things like OCTET STRINGS.
7203 *) Make SSL library a little more fool-proof by not requiring any longer
7204 that SSL_set_{accept,connect}_state be called before
7205 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
7206 in many applications because usually everything *appeared* to work as
7207 intended anyway -- now it really works as intended).
7210 *) Move openssl.cnf out of lib/.
7213 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
7214 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
7215 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
7216 [Ralf S. Engelschall]
7218 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
7219 handle PKCS#7 enveloped data properly.
7220 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
7222 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
7223 copying pointers. The cert_st handling is changed by this in
7224 various ways (and thus what used to be known as ctx->default_cert
7225 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
7226 any longer when s->cert does not give us what we need).
7227 ssl_cert_instantiate becomes obsolete by this change.
7228 As soon as we've got the new code right (possibly it already is?),
7229 we have solved a couple of bugs of the earlier code where s->cert
7230 was used as if it could not have been shared with other SSL structures.
7232 Note that using the SSL API in certain dirty ways now will result
7233 in different behaviour than observed with earlier library versions:
7234 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
7235 does not influence s as it used to.
7237 In order to clean up things more thoroughly, inside SSL_SESSION
7238 we don't use CERT any longer, but a new structure SESS_CERT
7239 that holds per-session data (if available); currently, this is
7240 the peer's certificate chain and, for clients, the server's certificate
7241 and temporary key. CERT holds only those values that can have
7242 meaningful defaults in an SSL_CTX.
7245 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
7246 from the internal representation. Various PKCS#7 fixes: remove some
7247 evil casts and set the enc_dig_alg field properly based on the signing
7251 *) Allow PKCS#12 password to be set from the command line or the
7252 environment. Let 'ca' get its config file name from the environment
7253 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
7257 *) Allow certificate policies extension to use an IA5STRING for the
7258 organization field. This is contrary to the PKIX definition but
7259 VeriSign uses it and IE5 only recognises this form. Document 'x509'
7263 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
7264 without disallowing inline assembler and the like for non-pedantic builds.
7267 *) Support Borland C++ builder.
7268 [Janez Jere <jj@void.si>, modified by Ulf Möller]
7273 *) SHA-1 cleanups and performance enhancements.
7274 [Andy Polyakov <appro@fy.chalmers.se>]
7276 *) Sparc v8plus assembler for the bignum library.
7277 [Andy Polyakov <appro@fy.chalmers.se>]
7279 *) Accept any -xxx and +xxx compiler options in Configure.
7282 *) Update HPUX configuration.
7285 *) Add missing sk_<type>_unshift() function to safestack.h
7286 [Ralf S. Engelschall]
7288 *) New function SSL_CTX_use_certificate_chain_file that sets the
7289 "extra_cert"s in addition to the certificate. (This makes sense
7290 only for "PEM" format files, as chains as a whole are not
7294 *) Support verify_depth from the SSL API.
7295 x509_vfy.c had what can be considered an off-by-one-error:
7296 Its depth (which was not part of the external interface)
7297 was actually counting the number of certificates in a chain;
7298 now it really counts the depth.
7301 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
7302 instead of X509err, which often resulted in confusing error
7303 messages since the error codes are not globally unique
7304 (e.g. an alleged error in ssl3_accept when a certificate
7305 didn't match the private key).
7307 *) New function SSL_CTX_set_session_id_context that allows to set a default
7308 value (so that you don't need SSL_set_session_id_context for each
7309 connection using the SSL_CTX).
7312 *) OAEP decoding bug fix.
7315 *) Support INSTALL_PREFIX for package builders, as proposed by
7319 *) New Configure options "threads" and "no-threads". For systems
7320 where the proper compiler options are known (currently Solaris
7321 and Linux), "threads" is the default.
7324 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
7327 *) Install various scripts to $(OPENSSLDIR)/misc, not to
7328 $(INSTALLTOP)/bin -- they shouldn't clutter directories
7329 such as /usr/local/bin.
7332 *) "make linux-shared" to build shared libraries.
7333 [Niels Poppe <niels@netbox.org>]
7335 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
7338 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
7339 extension adding in x509 utility.
7342 *) Remove NOPROTO sections and error code comments.
7345 *) Partial rewrite of the DEF file generator to now parse the ANSI
7349 *) New Configure options --prefix=DIR and --openssldir=DIR.
7352 *) Complete rewrite of the error code script(s). It is all now handled
7353 by one script at the top level which handles error code gathering,
7354 header rewriting and C source file generation. It should be much better
7355 than the old method: it now uses a modified version of Ulf's parser to
7356 read the ANSI prototypes in all header files (thus the old K&R definitions
7357 aren't needed for error creation any more) and do a better job of
7358 translating function codes into names. The old 'ASN1 error code imbedded
7359 in a comment' is no longer necessary and it doesn't use .err files which
7360 have now been deleted. Also the error code call doesn't have to appear all
7361 on one line (which resulted in some large lines...).
7364 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
7367 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
7368 0 (which usually indicates a closed connection), but continue reading.
7371 *) Fix some race conditions.
7374 *) Add support for CRL distribution points extension. Add Certificate
7375 Policies and CRL distribution points documentation.
7378 *) Move the autogenerated header file parts to crypto/opensslconf.h.
7381 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
7382 8 of keying material. Merlin has also confirmed interop with this fix
7383 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
7384 [Merlin Hughes <merlin@baltimore.ie>]
7386 *) Fix lots of warnings.
7387 [Richard Levitte <levitte@stacken.kth.se>]
7389 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
7390 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
7391 [Richard Levitte <levitte@stacken.kth.se>]
7393 *) Fix problems with sizeof(long) == 8.
7394 [Andy Polyakov <appro@fy.chalmers.se>]
7396 *) Change functions to ANSI C.
7399 *) Fix typos in error codes.
7400 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
7402 *) Remove defunct assembler files from Configure.
7405 *) SPARC v8 assembler BIGNUM implementation.
7406 [Andy Polyakov <appro@fy.chalmers.se>]
7408 *) Support for Certificate Policies extension: both print and set.
7409 Various additions to support the r2i method this uses.
7412 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
7413 return a const string when you are expecting an allocated buffer.
7416 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
7417 types DirectoryString and DisplayText.
7420 *) Add code to allow r2i extensions to access the configuration database,
7421 add an LHASH database driver and add several ctx helper functions.
7424 *) Fix an evil bug in bn_expand2() which caused various BN functions to
7425 fail when they extended the size of a BIGNUM.
7428 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
7429 support typesafe stack.
7432 *) Fix typo in SSL_[gs]et_options().
7433 [Nils Frostberg <nils@medcom.se>]
7435 *) Delete various functions and files that belonged to the (now obsolete)
7436 old X509V3 handling code.
7439 *) New Configure option "rsaref".
7442 *) Don't auto-generate pem.h.
7445 *) Introduce type-safe ASN.1 SETs.
7448 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
7449 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
7451 *) Introduce type-safe STACKs. This will almost certainly break lots of code
7452 that links with OpenSSL (well at least cause lots of warnings), but fear
7453 not: the conversion is trivial, and it eliminates loads of evil casts. A
7454 few STACKed things have been converted already. Feel free to convert more.
7455 In the fullness of time, I'll do away with the STACK type altogether.
7458 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
7459 specified in <certfile> by updating the entry in the index.txt file.
7460 This way one no longer has to edit the index.txt file manually for
7461 revoking a certificate. The -revoke option does the gory details now.
7462 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
7464 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
7465 `-text' option at all and this way the `-noout -text' combination was
7466 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
7467 [Ralf S. Engelschall]
7469 *) Make sure a corresponding plain text error message exists for the
7470 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
7471 verify callback function determined that a certificate was revoked.
7472 [Ralf S. Engelschall]
7474 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
7475 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
7476 all available cipers including rc5, which was forgotten until now.
7477 In order to let the testing shell script know which algorithms
7478 are available, a new (up to now undocumented) command
7479 "openssl list-cipher-commands" is used.
7482 *) Bugfix: s_client occasionally would sleep in select() when
7483 it should have checked SSL_pending() first.
7486 *) New functions DSA_do_sign and DSA_do_verify to provide access to
7487 the raw DSA values prior to ASN.1 encoding.
7490 *) Tweaks to Configure
7491 [Niels Poppe <niels@netbox.org>]
7493 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
7497 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
7500 *) New config option to avoid instructions that are illegal on the 80386.
7501 The default code is faster, but requires at least a 486.
7504 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
7505 SSL2_SERVER_VERSION (not used at all) macros, which are now the
7506 same as SSL2_VERSION anyway.
7509 *) New "-showcerts" option for s_client.
7512 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
7513 application. Various cleanups and fixes.
7516 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
7517 modify error routines to work internally. Add error codes and PBE init
7518 to library startup routines.
7521 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
7522 packing functions to asn1 and evp. Changed function names and error
7523 codes along the way.
7526 *) PKCS12 integration: and so it begins... First of several patches to
7527 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
7528 objects to objects.h
7531 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
7532 and display support for Thawte strong extranet extension.
7535 *) Add LinuxPPC support.
7536 [Jeff Dubrule <igor@pobox.org>]
7538 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
7539 bn_div_words in alpha.s.
7540 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
7542 *) Make sure the RSA OAEP test is skipped under -DRSAref because
7543 OAEP isn't supported when OpenSSL is built with RSAref.
7544 [Ulf Moeller <ulf@fitug.de>]
7546 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
7547 so they no longer are missing under -DNOPROTO.
7548 [Soren S. Jorvang <soren@t.dk>]
7551 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
7553 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
7554 doesn't work when the session is reused. Coming soon!
7557 *) Fix a security hole, that allows sessions to be reused in the wrong
7558 context thus bypassing client cert protection! All software that uses
7559 client certs and session caches in multiple contexts NEEDS PATCHING to
7560 allow session reuse! A fuller solution is in the works.
7561 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
7563 *) Some more source tree cleanups (removed obsolete files
7564 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
7565 permission on "config" script to be executable) and a fix for the INSTALL
7567 [Ulf Moeller <ulf@fitug.de>]
7569 *) Remove some legacy and erroneous uses of malloc, free instead of
7571 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
7573 *) Make rsa_oaep_test return non-zero on error.
7574 [Ulf Moeller <ulf@fitug.de>]
7576 *) Add support for native Solaris shared libraries. Configure
7577 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
7578 if someone would make that last step automatic.
7579 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
7581 *) ctx_size was not built with the right compiler during "make links". Fixed.
7584 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
7585 except NULL ciphers". This means the default cipher list will no longer
7586 enable NULL ciphers. They need to be specifically enabled e.g. with
7587 the string "DEFAULT:eNULL".
7590 *) Fix to RSA private encryption routines: if p < q then it would
7591 occasionally produce an invalid result. This will only happen with
7592 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
7595 *) Be less restrictive and allow also `perl util/perlpath.pl
7596 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
7597 because this way one can also use an interpreter named `perl5' (which is
7598 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
7599 installed as `perl').
7600 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7602 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
7603 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7605 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
7606 advapi32.lib to Win32 build and change the pem test comparision
7607 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
7608 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
7609 and crypto/des/ede_cbcm_enc.c.
7612 *) DES quad checksum was broken on big-endian architectures. Fixed.
7615 *) Comment out two functions in bio.h that aren't implemented. Fix up the
7616 Win32 test batch file so it (might) work again. The Win32 test batch file
7617 is horrible: I feel ill....
7620 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
7621 in e_os.h. Audit of header files to check ANSI and non ANSI
7622 sections: 10 functions were absent from non ANSI section and not exported
7623 from Windows DLLs. Fixed up libeay.num for new functions.
7626 *) Make `openssl version' output lines consistent.
7627 [Ralf S. Engelschall]
7629 *) Fix Win32 symbol export lists for BIO functions: Added
7630 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
7631 to ms/libeay{16,32}.def.
7632 [Ralf S. Engelschall]
7634 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
7635 fine under Unix and passes some trivial tests I've now added. But the
7636 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
7637 added to make sure no one expects that this stuff really works in the
7638 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
7639 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
7641 [Ralf S. Engelschall]
7643 *) Fix the generation of two part addresses in perl.
7644 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
7646 *) Add config entry for Linux on MIPS.
7647 [John Tobey <jtobey@channel1.com>]
7649 *) Make links whenever Configure is run, unless we are on Windoze.
7652 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
7653 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
7657 *) Add a useful kludge to allow package maintainers to specify compiler and
7658 other platforms details on the command line without having to patch the
7659 Configure script everytime: One now can use ``perl Configure
7660 <id>:<details>'', i.e. platform ids are allowed to have details appended
7661 to them (seperated by colons). This is treated as there would be a static
7662 pre-configured entry in Configure's %table under key <id> with value
7663 <details> and ``perl Configure <id>'' is called. So, when you want to
7664 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
7665 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
7666 now, which overrides the FreeBSD-elf entry on-the-fly.
7667 [Ralf S. Engelschall]
7669 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
7672 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
7673 on the `perl Configure ...' command line. This way one can compile
7674 OpenSSL libraries with Position Independent Code (PIC) which is needed
7675 for linking it into DSOs.
7676 [Ralf S. Engelschall]
7678 *) Remarkably, export ciphers were totally broken and no-one had noticed!
7682 *) Cleaned up the LICENSE document: The official contact for any license
7683 questions now is the OpenSSL core team under openssl-core@openssl.org.
7684 And add a paragraph about the dual-license situation to make sure people
7685 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
7686 to the OpenSSL toolkit.
7687 [Ralf S. Engelschall]
7689 *) General source tree makefile cleanups: Made `making xxx in yyy...'
7690 display consistent in the source tree and replaced `/bin/rm' by `rm'.
7691 Additonally cleaned up the `make links' target: Remove unnecessary
7692 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
7693 to speed processing and no longer clutter the display with confusing
7694 stuff. Instead only the actually done links are displayed.
7695 [Ralf S. Engelschall]
7697 *) Permit null encryption ciphersuites, used for authentication only. It used
7698 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
7699 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
7703 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
7704 signed attributes when verifying signatures (this would break them),
7705 the detached data encoding was wrong and public keys obtained using
7706 X509_get_pubkey() weren't freed.
7709 *) Add text documentation for the BUFFER functions. Also added a work around
7710 to a Win95 console bug. This was triggered by the password read stuff: the
7711 last character typed gets carried over to the next fread(). If you were
7712 generating a new cert request using 'req' for example then the last
7713 character of the passphrase would be CR which would then enter the first
7717 *) Added the new `Includes OpenSSL Cryptography Software' button as
7718 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
7719 button and can be used by applications based on OpenSSL to show the
7720 relationship to the OpenSSL project.
7721 [Ralf S. Engelschall]
7723 *) Remove confusing variables in function signatures in files
7724 ssl/ssl_lib.c and ssl/ssl.h.
7725 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7727 *) Don't install bss_file.c under PREFIX/include/
7728 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7730 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
7731 functions that return function pointers and has support for NT specific
7732 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
7733 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
7734 unsigned to signed types: this was killing the Win32 compile.
7737 *) Add new certificate file to stack functions,
7738 SSL_add_dir_cert_subjects_to_stack() and
7739 SSL_add_file_cert_subjects_to_stack(). These largely supplant
7740 SSL_load_client_CA_file(), and can be used to add multiple certs easily
7741 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
7742 This means that Apache-SSL and similar packages don't have to mess around
7743 to add as many CAs as they want to the preferred list.
7746 *) Experiment with doxygen documentation. Currently only partially applied to
7748 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
7749 openssl.doxy as the configuration file.
7752 *) Get rid of remaining C++-style comments which strict C compilers hate.
7753 [Ralf S. Engelschall, pointed out by Carlos Amengual]
7755 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
7756 compiled in by default: it has problems with large keys.
7759 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
7760 DH private keys and/or callback functions which directly correspond to
7761 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
7762 is needed for applications which have to configure certificates on a
7763 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
7765 For the RSA certificate situation is makes no difference, but
7766 for the DSA certificate situation this fixes the "no shared cipher"
7767 problem where the OpenSSL cipher selection procedure failed because the
7768 temporary keys were not overtaken from the context and the API provided
7769 no way to reconfigure them.
7770 The new functions now let applications reconfigure the stuff and they
7771 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
7772 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
7773 non-public-API function ssl_cert_instantiate() is used as a helper
7774 function and also to reduce code redundancy inside ssl_rsa.c.
7775 [Ralf S. Engelschall]
7777 *) Move s_server -dcert and -dkey options out of the undocumented feature
7778 area because they are useful for the DSA situation and should be
7779 recognized by the users.
7780 [Ralf S. Engelschall]
7782 *) Fix the cipher decision scheme for export ciphers: the export bits are
7783 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
7784 SSL_EXP_MASK. So, the original variable has to be used instead of the
7785 already masked variable.
7786 [Richard Levitte <levitte@stacken.kth.se>]
7788 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
7789 [Richard Levitte <levitte@stacken.kth.se>]
7791 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
7792 from `int' to `unsigned int' because it's a length and initialized by
7793 EVP_DigestFinal() which expects an `unsigned int *'.
7794 [Richard Levitte <levitte@stacken.kth.se>]
7796 *) Don't hard-code path to Perl interpreter on shebang line of Configure
7797 script. Instead use the usual Shell->Perl transition trick.
7798 [Ralf S. Engelschall]
7800 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
7801 (in addition to RSA certificates) to match the behaviour of `openssl dsa
7802 -noout -modulus' as it's already the case for `openssl rsa -noout
7803 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
7804 currently the public key is printed (a decision which was already done by
7805 `openssl dsa -modulus' in the past) which serves a similar purpose.
7806 Additionally the NO_RSA no longer completely removes the whole -modulus
7807 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
7809 [Ralf S. Engelschall]
7811 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
7812 BIO. See the source (crypto/evp/bio_ok.c) for more info.
7813 [Arne Ansper <arne@ats.cyber.ee>]
7815 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
7816 to be added. Now both 'req' and 'ca' can use new objects defined in the
7820 *) Add cool BIO that does syslog (or event log on NT).
7821 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
7823 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
7824 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
7825 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
7826 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
7829 *) Add preliminary config info for new extension code.
7832 *) Make RSA_NO_PADDING really use no padding.
7833 [Ulf Moeller <ulf@fitug.de>]
7835 *) Generate errors when private/public key check is done.
7838 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
7839 for some CRL extensions and new objects added.
7842 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
7843 key usage extension and fuller support for authority key id.
7846 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
7847 padding method for RSA, which is recommended for new applications in PKCS
7848 #1 v2.0 (RFC 2437, October 1998).
7849 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
7850 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
7851 against Bleichbacher's attack on RSA.
7852 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
7855 *) Updates to the new SSL compression code
7856 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7858 *) Fix so that the version number in the master secret, when passed
7859 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
7860 (because the server will not accept higher), that the version number
7861 is 0x03,0x01, not 0x03,0x00
7862 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7864 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
7865 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
7866 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
7869 *) Support for RAW extensions where an arbitrary extension can be
7870 created by including its DER encoding. See apps/openssl.cnf for
7874 *) Make sure latest Perl versions don't interpret some generated C array
7875 code as Perl array code in the crypto/err/err_genc.pl script.
7876 [Lars Weber <3weber@informatik.uni-hamburg.de>]
7878 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
7879 not many people have the assembler. Various Win32 compilation fixes and
7880 update to the INSTALL.W32 file with (hopefully) more accurate Win32
7884 *) Modify configure script 'Configure' to automatically create crypto/date.h
7885 file under Win32 and also build pem.h from pem.org. New script
7886 util/mkfiles.pl to create the MINFO file on environments that can't do a
7887 'make files': perl util/mkfiles.pl >MINFO should work.
7890 *) Major rework of DES function declarations, in the pursuit of correctness
7891 and purity. As a result, many evil casts evaporated, and some weirdness,
7892 too. You may find this causes warnings in your code. Zapping your evil
7893 casts will probably fix them. Mostly.
7896 *) Fix for a typo in asn1.h. Bug fix to object creation script
7897 obj_dat.pl. It considered a zero in an object definition to mean
7898 "end of object": none of the objects in objects.h have any zeros
7899 so it wasn't spotted.
7900 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
7902 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
7903 Masking (CBCM). In the absence of test vectors, the best I have been able
7904 to do is check that the decrypt undoes the encrypt, so far. Send me test
7905 vectors if you have them.
7908 *) Correct calculation of key length for export ciphers (too much space was
7909 allocated for null ciphers). This has not been tested!
7912 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
7913 message is now correct (it understands "crypto" and "ssl" on its
7914 command line). There is also now an "update" option. This will update
7915 the util/ssleay.num and util/libeay.num files with any new functions.
7917 perl util/mkdef.pl crypto ssl update
7918 it will update them.
7921 *) Overhauled the Perl interface (perl/*):
7922 - ported BN stuff to OpenSSL's different BN library
7923 - made the perl/ source tree CVS-aware
7924 - renamed the package from SSLeay to OpenSSL (the files still contain
7925 their history because I've copied them in the repository)
7926 - removed obsolete files (the test scripts will be replaced
7927 by better Test::Harness variants in the future)
7928 [Ralf S. Engelschall]
7930 *) First cut for a very conservative source tree cleanup:
7931 1. merge various obsolete readme texts into doc/ssleay.txt
7932 where we collect the old documents and readme texts.
7933 2. remove the first part of files where I'm already sure that we no
7934 longer need them because of three reasons: either they are just temporary
7935 files which were left by Eric or they are preserved original files where
7936 I've verified that the diff is also available in the CVS via "cvs diff
7937 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
7938 the crypto/md/ stuff).
7939 [Ralf S. Engelschall]
7941 *) More extension code. Incomplete support for subject and issuer alt
7942 name, issuer and authority key id. Change the i2v function parameters
7943 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
7944 what that's for :-) Fix to ASN1 macro which messed up
7945 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
7948 *) Preliminary support for ENUMERATED type. This is largely copied from the
7952 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
7953 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7955 *) Make sure `make rehash' target really finds the `openssl' program.
7956 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7958 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
7959 like to hear about it if this slows down other processors.
7962 *) Add CygWin32 platform information to Configure script.
7963 [Alan Batie <batie@aahz.jf.intel.com>]
7965 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
7966 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
7968 *) New program nseq to manipulate netscape certificate sequences
7971 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
7975 *) Fixes to BN code. Previously the default was to define BN_RECURSION
7976 but the BN code had some problems that would cause failures when
7977 doing certificate verification and some other functions.
7978 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7980 *) Add ASN1 and PEM code to support netscape certificate sequences.
7983 *) Add ASN1 and PEM code to support netscape certificate sequences.
7986 *) Add several PKIX and private extended key usage OIDs.
7989 *) Modify the 'ca' program to handle the new extension code. Modify
7990 openssl.cnf for new extension format, add comments.
7993 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
7994 and add a sample to openssl.cnf so req -x509 now adds appropriate
7998 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
7999 error code, add initial support to X509_print() and x509 application.
8002 *) Takes a deep breath and start addding X509 V3 extension support code. Add
8003 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
8004 stuff is currently isolated and isn't even compiled yet.
8007 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
8008 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
8009 Removed the versions check from X509 routines when loading extensions:
8010 this allows certain broken certificates that don't set the version
8011 properly to be processed.
8014 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
8015 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
8016 can still be regenerated with "make depend".
8019 *) Spelling mistake in C version of CAST-128.
8020 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
8022 *) Changes to the error generation code. The perl script err-code.pl
8023 now reads in the old error codes and retains the old numbers, only
8024 adding new ones if necessary. It also only changes the .err files if new
8025 codes are added. The makefiles have been modified to only insert errors
8026 when needed (to avoid needlessly modifying header files). This is done
8027 by only inserting errors if the .err file is newer than the auto generated
8028 C file. To rebuild all the error codes from scratch (the old behaviour)
8029 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
8030 or delete all the .err files.
8033 *) CAST-128 was incorrectly implemented for short keys. The C version has
8034 been fixed, but is untested. The assembler versions are also fixed, but
8035 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
8036 to regenerate it if needed.
8037 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
8038 Hagino <itojun@kame.net>]
8040 *) File was opened incorrectly in randfile.c.
8041 [Ulf Möller <ulf@fitug.de>]
8043 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
8044 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
8045 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
8046 al: it's just almost always a UTCTime. Note this patch adds new error
8047 codes so do a "make errors" if there are problems.
8050 *) Correct Linux 1 recognition in config.
8051 [Ulf Möller <ulf@fitug.de>]
8053 *) Remove pointless MD5 hash when using DSA keys in ca.
8054 [Anonymous <nobody@replay.com>]
8056 *) Generate an error if given an empty string as a cert directory. Also
8057 generate an error if handed NULL (previously returned 0 to indicate an
8058 error, but didn't set one).
8059 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
8061 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
8064 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
8065 parameters. This was causing a warning which killed off the Win32 compile.
8068 *) Remove C++ style comments from crypto/bn/bn_local.h.
8069 [Neil Costigan <neil.costigan@celocom.com>]
8071 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
8072 based on a text string, looking up short and long names and finally
8073 "dot" format. The "dot" format stuff didn't work. Added new function
8074 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
8075 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
8076 OID is not part of the table.
8079 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
8080 X509_LOOKUP_by_alias().
8083 *) Sort openssl functions by name.
8086 *) Get the gendsa program working (hopefully) and add it to app list. Remove
8087 encryption from sample DSA keys (in case anyone is interested the password
8091 *) Make _all_ *_free functions accept a NULL pointer.
8092 [Frans Heymans <fheymans@isaserver.be>]
8094 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
8096 [Anonymous <nobody@replay.com>]
8098 *) s_server should send the CAfile as acceptable CAs, not its own cert.
8099 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8101 *) Don't blow it for numeric -newkey arguments to apps/req.
8102 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8104 *) Temp key "for export" tests were wrong in s3_srvr.c.
8105 [Anonymous <nobody@replay.com>]
8107 *) Add prototype for temp key callback functions
8108 SSL_CTX_set_tmp_{rsa,dh}_callback().
8111 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
8112 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
8115 *) X509_name_add_entry() freed the wrong thing after an error.
8116 [Arne Ansper <arne@ats.cyber.ee>]
8118 *) rsa_eay.c would attempt to free a NULL context.
8119 [Arne Ansper <arne@ats.cyber.ee>]
8121 *) BIO_s_socket() had a broken should_retry() on Windoze.
8122 [Arne Ansper <arne@ats.cyber.ee>]
8124 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
8125 [Arne Ansper <arne@ats.cyber.ee>]
8127 *) Make sure the already existing X509_STORE->depth variable is initialized
8128 in X509_STORE_new(), but document the fact that this variable is still
8129 unused in the certificate verification process.
8130 [Ralf S. Engelschall]
8132 *) Fix the various library and apps files to free up pkeys obtained from
8133 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
8136 *) Fix reference counting in X509_PUBKEY_get(). This makes
8137 demos/maurice/example2.c work, amongst others, probably.
8138 [Steve Henson and Ben Laurie]
8140 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
8141 `openssl' and second, the shortcut symlinks for the `openssl <command>'
8142 are no longer created. This way we have a single and consistent command
8143 line interface `openssl <command>', similar to `cvs <command>'.
8144 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
8146 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
8147 BIT STRING wrapper always have zero unused bits.
8150 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
8153 *) Make the top-level INSTALL documentation easier to understand.
8156 *) Makefiles updated to exit if an error occurs in a sub-directory
8157 make (including if user presses ^C) [Paul Sutton]
8159 *) Make Montgomery context stuff explicit in RSA data structure.
8162 *) Fix build order of pem and err to allow for generated pem.h.
8165 *) Fix renumbering bug in X509_NAME_delete_entry().
8168 *) Enhanced the err-ins.pl script so it makes the error library number
8169 global and can add a library name. This is needed for external ASN1 and
8170 other error libraries.
8173 *) Fixed sk_insert which never worked properly.
8176 *) Fix ASN1 macros so they can handle indefinite length construted
8177 EXPLICIT tags. Some non standard certificates use these: they can now
8181 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
8182 into a single doc/ssleay.txt bundle. This way the information is still
8183 preserved but no longer messes up this directory. Now it's new room for
8184 the new set of documenation files.
8185 [Ralf S. Engelschall]
8187 *) SETs were incorrectly DER encoded. This was a major pain, because they
8188 shared code with SEQUENCEs, which aren't coded the same. This means that
8189 almost everything to do with SETs or SEQUENCEs has either changed name or
8190 number of arguments.
8191 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
8193 *) Fix test data to work with the above.
8196 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
8197 was already fixed by Eric for 0.9.1 it seems.
8198 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
8200 *) Autodetect FreeBSD3.
8203 *) Fix various bugs in Configure. This affects the following platforms:
8207 unixware-2.0-pentium
8211 *) Eliminate generated files from CVS. Reorder tests to regenerate files
8212 before they are needed.
8215 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
8219 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
8221 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
8222 changed SSLeay to OpenSSL in version strings.
8223 [Ralf S. Engelschall]
8225 *) Some fixups to the top-level documents.
8228 *) Fixed the nasty bug where rsaref.h was not found under compile-time
8229 because the symlink to include/ was missing.
8230 [Ralf S. Engelschall]
8232 *) Incorporated the popular no-RSA/DSA-only patches
8233 which allow to compile a RSA-free SSLeay.
8234 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
8236 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
8237 when "ssleay" is still not found.
8238 [Ralf S. Engelschall]
8240 *) Added more platforms to Configure: Cray T3E, HPUX 11,
8241 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
8243 *) Updated the README file.
8244 [Ralf S. Engelschall]
8246 *) Added various .cvsignore files in the CVS repository subdirs
8247 to make a "cvs update" really silent.
8248 [Ralf S. Engelschall]
8250 *) Recompiled the error-definition header files and added
8251 missing symbols to the Win32 linker tables.
8252 [Ralf S. Engelschall]
8254 *) Cleaned up the top-level documents;
8255 o new files: CHANGES and LICENSE
8256 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
8257 o merged COPYRIGHT into LICENSE
8258 o removed obsolete TODO file
8259 o renamed MICROSOFT to INSTALL.W32
8260 [Ralf S. Engelschall]
8262 *) Removed dummy files from the 0.9.1b source tree:
8263 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
8264 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
8265 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
8266 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
8267 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
8268 [Ralf S. Engelschall]
8270 *) Added various platform portability fixes.
8273 *) The Genesis of the OpenSSL rpject:
8274 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
8275 Young and Tim J. Hudson created while they were working for C2Net until
8277 [The OpenSSL Project]
8280 Changes between 0.9.0b and 0.9.1b [not released]
8282 *) Updated a few CA certificates under certs/
8285 *) Changed some BIGNUM api stuff.
8288 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
8289 DGUX x86, Linux Alpha, etc.
8292 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
8293 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
8297 *) Add -strparse option to asn1pars program which parses nested
8299 [Dr Stephen Henson <shenson@bigfoot.com>]
8301 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
8304 *) DSA fix for "ca" program.
8307 *) Added "-genkey" option to "dsaparam" program.
8310 *) Added RIPE MD160 (rmd160) message digest.
8313 *) Added -a (all) option to "ssleay version" command.
8316 *) Added PLATFORM define which is the id given to Configure.
8319 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
8322 *) Extended the ASN.1 parser routines.
8325 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
8328 *) Added a BN_CTX to the BN library.
8331 *) Fixed the weak key values in DES library
8334 *) Changed API in EVP library for cipher aliases.
8337 *) Added support for RC2/64bit cipher.
8340 *) Converted the lhash library to the crypto/mem.c functions.
8343 *) Added more recognized ASN.1 object ids.
8346 *) Added more RSA padding checks for SSL/TLS.
8349 *) Added BIO proxy/filter functionality.
8352 *) Added extra_certs to SSL_CTX which can be used
8353 send extra CA certificates to the client in the CA cert chain sending
8354 process. It can be configured with SSL_CTX_add_extra_chain_cert().
8357 *) Now Fortezza is denied in the authentication phase because
8358 this is key exchange mechanism is not supported by SSLeay at all.
8361 *) Additional PKCS1 checks.
8364 *) Support the string "TLSv1" for all TLS v1 ciphers.
8367 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
8368 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
8371 *) Fixed a few memory leaks.
8374 *) Fixed various code and comment typos.
8377 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
8378 bytes sent in the client random.
8379 [Edward Bishop <ebishop@spyglass.com>]
projects / oweals / openssl.git / blob