5 Changes between 0.9.8i and 0.9.8j [xx XXX xxxx]
8 *) Use correct exit code if there is an error in dgst command.
9 [Steve Henson; problem pointed out by Roland Dirlewanger]
12 *) Add JPAKE support, including demo authentication in s_client and
17 *) Set the comparison function in v3_addr_canonize().
18 [Rob Austein <sra@hactrn.net>]
20 *) Add support for XMPP STARTTLS in s_client.
21 [Philip Paeps <philip@freebsd.org>]
23 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
24 to ensure that even with this option, only ciphersuites in the
25 server's preference list will be accepted. (Note that the option
26 applies only when resuming a session, so the earlier behavior was
27 just about the algorithm choice for symmetric cryptography.)
30 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
32 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
33 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
36 *) The fix in 0.9.8c that supposedly got rid of unsafe
37 double-checked locking was incomplete for RSA blinding,
38 addressing just one layer of what turns out to have been
39 doubly unsafe triple-checked locking.
41 So now fix this for real by retiring the MONT_HELPER macro
42 in crypto/rsa/rsa_eay.c.
44 [Bodo Moeller; problem pointed out by Marius Schilder]
46 *) Various precautionary measures:
48 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
50 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
51 (NB: This would require knowledge of the secret session ticket key
52 to exploit, in which case you'd be SOL either way.)
54 - Change bn_nist.c so that it will properly handle input BIGNUMs
55 outside the expected range.
57 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
60 [Neel Mehta, Bodo Moeller]
62 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
63 the load fails. Useful for distros.
64 [Ben Laurie and the FreeBSD team]
66 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
69 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
72 *) Expand ENGINE to support engine supplied SSL client certificate functions.
74 This work was sponsored by Logica.
77 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
78 keystores. Support for SSL/TLS client authentication too.
79 Not compiled unless enable-capieng specified to Configure.
81 This work was sponsored by Logica.
84 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
85 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
86 attribute creation routines such as certifcate requests and PKCS#12
90 Changes between 0.9.8g and 0.9.8h [28 May 2008]
92 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
93 handshake which could lead to a cilent crash as found using the
94 Codenomicon TLS test suite (CVE-2008-1672)
95 [Steve Henson, Mark Cox]
97 *) Fix double free in TLS server name extensions which could lead to
98 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
101 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
103 Clear the error queue to ensure that error entries left from
104 older function calls do not interfere with the correct operation.
105 [Lutz Jaenicke, Erik de Castro Lopo]
107 *) Remove root CA certificates of commercial CAs:
109 The OpenSSL project does not recommend any specific CA and does not
110 have any policy with respect to including or excluding any CA.
111 Therefore it does not make any sense to ship an arbitrary selection
112 of root CA certificates with the OpenSSL software.
115 *) RSA OAEP patches to fix two separate invalid memory reads.
116 The first one involves inputs when 'lzero' is greater than
117 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
118 before the beginning of from). The second one involves inputs where
119 the 'db' section contains nothing but zeroes (there is a one-byte
120 invalid read after the end of 'db').
121 [Ivan Nestlerode <inestlerode@us.ibm.com>]
123 *) Partial backport from 0.9.9-dev:
125 Introduce bn_mul_mont (dedicated Montgomery multiplication
126 procedure) as a candidate for BIGNUM assembler implementation.
127 While 0.9.9-dev uses assembler for various architectures, only
128 x86_64 is available by default here in the 0.9.8 branch, and
129 32-bit x86 is available through a compile-time setting.
131 To try the 32-bit x86 assembler implementation, use Configure
132 option "enable-montasm" (which exists only for this backport).
134 As "enable-montasm" for 32-bit x86 disclaims code stability
135 anyway, in this constellation we activate additional code
136 backported from 0.9.9-dev for further performance improvements,
137 namely BN_from_montgomery_word. (To enable this otherwise,
138 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
140 [Andy Polyakov (backport partially by Bodo Moeller)]
142 *) Add TLS session ticket callback. This allows an application to set
143 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
144 values. This is useful for key rollover for example where several key
145 sets may exist with different names.
148 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
149 This was broken until now in 0.9.8 releases, such that the only way
150 a registered ENGINE could be used (assuming it initialises
151 successfully on the host) was to explicitly set it as the default
152 for the relevant algorithms. This is in contradiction with 0.9.7
153 behaviour and the documentation. With this fix, when an ENGINE is
154 registered into a given algorithm's table of implementations, the
155 'uptodate' flag is reset so that auto-discovery will be used next
156 time a new context for that algorithm attempts to select an
158 [Ian Lister (tweaked by Geoff Thorpe)]
160 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
161 implemention in the following ways:
163 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
166 Lack of BER streaming support means one pass streaming processing is
167 only supported if data is detached: setting the streaming flag is
168 ignored for embedded content.
170 CMS support is disabled by default and must be explicitly enabled
171 with the enable-cms configuration option.
174 *) Update the GMP engine glue to do direct copies between BIGNUM and
175 mpz_t when openssl and GMP use the same limb size. Otherwise the
176 existing "conversion via a text string export" trick is still used.
177 [Paul Sheer <paulsheer@gmail.com>]
179 *) Zlib compression BIO. This is a filter BIO which compressed and
180 uncompresses any data passed through it.
183 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
184 RFC3394 compatible AES key wrapping.
187 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
188 sets string data without copying. X509_ALGOR_set0() and
189 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
190 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
191 from an X509_ATTRIBUTE structure optionally checking it occurs only
192 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
196 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
197 to get the expected BN_FLG_CONSTTIME behavior.
198 [Bodo Moeller (Google)]
202 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
203 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
204 - added some more tests to do_tests.pl
205 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
206 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
207 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
208 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
209 - various changes to netware.pl to enable gcc-cross builds on Win32
211 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
212 - various changes to fix missing prototype warnings
213 - fixed x86nasm.pl to create correct asm files for NASM COFF output
214 - added AES, WHIRLPOOL and CPUID assembler code to build files
215 - added missing AES assembler make rules to mk1mf.pl
216 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
217 [Guenter Knauf <eflash@gmx.net>]
219 *) Implement certificate status request TLS extension defined in RFC3546.
220 A client can set the appropriate parameters and receive the encoded
221 OCSP response via a callback. A server can query the supplied parameters
222 and set the encoded OCSP response in the callback. Add simplified examples
223 to s_client and s_server.
226 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
229 + Binary incompatibility of ssl_ctx_st structure
230 + DTLS interoperation with non-compliant servers
231 + Don't call get_session_cb() without proposed session
232 + Fix ia64 assembler code
233 [Andy Polyakov, Steve Henson]
235 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
237 *) DTLS Handshake overhaul. There were longstanding issues with
238 OpenSSL DTLS implementation, which were making it impossible for
239 RFC 4347 compliant client to communicate with OpenSSL server.
240 Unfortunately just fixing these incompatibilities would "cut off"
241 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
242 server keeps tolerating non RFC compliant syntax. The opposite is
243 not true, 0.9.8f client can not communicate with earlier server.
244 This update even addresses CVE-2007-4995.
247 *) Changes to avoid need for function casts in OpenSSL: some compilers
248 (gcc 4.2 and later) reject their use.
249 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
252 *) Add RFC4507 support to OpenSSL. This includes the corrections in
253 RFC4507bis. The encrypted ticket format is an encrypted encoded
254 SSL_SESSION structure, that way new session features are automatically
257 If a client application caches session in an SSL_SESSION structure
258 support is transparent because tickets are now stored in the encoded
261 The SSL_CTX structure automatically generates keys for ticket
262 protection in servers so again support should be possible
263 with no application modification.
265 If a client or server wishes to disable RFC4507 support then the option
266 SSL_OP_NO_TICKET can be set.
268 Add a TLS extension debugging callback to allow the contents of any client
269 or server extensions to be examined.
271 This work was sponsored by Google.
274 *) Add initial support for TLS extensions, specifically for the server_name
275 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
276 have new members for a host name. The SSL data structure has an
277 additional member SSL_CTX *initial_ctx so that new sessions can be
278 stored in that context to allow for session resumption, even after the
279 SSL has been switched to a new SSL_CTX in reaction to a client's
280 server_name extension.
282 New functions (subject to change):
285 SSL_get_servername_type()
288 New CTRL codes and macros (subject to change):
290 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
291 - SSL_CTX_set_tlsext_servername_callback()
292 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
293 - SSL_CTX_set_tlsext_servername_arg()
294 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
296 openssl s_client has a new '-servername ...' option.
298 openssl s_server has new options '-servername_host ...', '-cert2 ...',
299 '-key2 ...', '-servername_fatal' (subject to change). This allows
300 testing the HostName extension for a specific single host name ('-cert'
301 and '-key' remain fallbacks for handshakes without HostName
302 negotiation). If the unrecogninzed_name alert has to be sent, this by
303 default is a warning; it becomes fatal with the '-servername_fatal'
306 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
308 *) Add AES and SSE2 assembly language support to VC++ build.
311 *) Mitigate attack on final subtraction in Montgomery reduction.
314 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
315 (which previously caused an internal error).
318 *) Squeeze another 10% out of IGE mode when in != out.
321 *) AES IGE mode speedup.
322 [Dean Gaudet (Google)]
324 *) Add the Korean symmetric 128-bit cipher SEED (see
325 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
326 add SEED ciphersuites from RFC 4162:
328 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
329 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
330 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
331 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
333 To minimize changes between patchlevels in the OpenSSL 0.9.8
334 series, SEED remains excluded from compilation unless OpenSSL
335 is configured with 'enable-seed'.
338 *) Mitigate branch prediction attacks, which can be practical if a
339 single processor is shared, allowing a spy process to extract
340 information. For detailed background information, see
341 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
342 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
343 and Necessary Software Countermeasures"). The core of the change
344 are new versions BN_div_no_branch() and
345 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
346 respectively, which are slower, but avoid the security-relevant
347 conditional branches. These are automatically called by BN_div()
348 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
349 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
350 remove a conditional branch.
352 BN_FLG_CONSTTIME is the new name for the previous
353 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
354 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
355 in the exponent causes BN_mod_exp_mont() to use the alternative
356 implementation in BN_mod_exp_mont_consttime().) The old name
357 remains as a deprecated alias.
359 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
360 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
361 constant-time implementations for more than just exponentiation.
362 Here too the old name is kept as a deprecated alias.
364 BN_BLINDING_new() will now use BN_dup() for the modulus so that
365 the BN_BLINDING structure gets an independent copy of the
366 modulus. This means that the previous "BIGNUM *m" argument to
367 BN_BLINDING_new() and to BN_BLINDING_create_param() now
368 essentially becomes "const BIGNUM *m", although we can't actually
369 change this in the header file before 0.9.9. It allows
370 RSA_setup_blinding() to use BN_with_flags() on the modulus to
371 enable BN_FLG_CONSTTIME.
373 [Matthew D Wood (Intel Corp)]
375 *) In the SSL/TLS server implementation, be strict about session ID
376 context matching (which matters if an application uses a single
377 external cache for different purposes). Previously,
378 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
379 set. This did ensure strict client verification, but meant that,
380 with applications using a single external cache for quite
381 different requirements, clients could circumvent ciphersuite
382 restrictions for a given session ID context by starting a session
383 in a different context.
386 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
387 a ciphersuite string such as "DEFAULT:RSA" cannot enable
388 authentication-only ciphersuites.
391 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
392 not complete and could lead to a possible single byte overflow
393 (CVE-2007-5135) [Ben Laurie]
395 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
397 *) Since AES128 and AES256 (and similarly Camellia128 and
398 Camellia256) share a single mask bit in the logic of
399 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
400 kludge to work properly if AES128 is available and AES256 isn't
401 (or if Camellia128 is available and Camellia256 isn't).
404 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
405 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
406 When a point or a seed is encoded in a BIT STRING, we need to
407 prevent the removal of trailing zero bits to get the proper DER
408 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
409 of a NamedBitList, for which trailing 0 bits need to be removed.)
412 *) Have SSL/TLS server implementation tolerate "mismatched" record
413 protocol version while receiving ClientHello even if the
414 ClientHello is fragmented. (The server can't insist on the
415 particular protocol version it has chosen before the ServerHello
416 message has informed the client about his choice.)
419 *) Add RFC 3779 support.
420 [Rob Austein for ARIN, Ben Laurie]
422 *) Load error codes if they are not already present instead of using a
423 static variable. This allows them to be cleanly unloaded and reloaded.
424 Improve header file function name parsing.
427 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
428 or CAPABILITY handshake as required by RFCs.
431 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
433 *) Introduce limits to prevent malicious keys being able to
434 cause a denial of service. (CVE-2006-2940)
435 [Steve Henson, Bodo Moeller]
437 *) Fix ASN.1 parsing of certain invalid structures that can result
438 in a denial of service. (CVE-2006-2937) [Steve Henson]
440 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
441 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
443 *) Fix SSL client code which could crash if connecting to a
444 malicious SSLv2 server. (CVE-2006-4343)
445 [Tavis Ormandy and Will Drewry, Google Security Team]
447 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
448 match only those. Before that, "AES256-SHA" would be interpreted
449 as a pattern and match "AES128-SHA" too (since AES128-SHA got
450 the same strength classification in 0.9.7h) as we currently only
451 have a single AES bit in the ciphersuite description bitmap.
452 That change, however, also applied to ciphersuite strings such as
453 "RC4-MD5" that intentionally matched multiple ciphersuites --
454 namely, SSL 2.0 ciphersuites in addition to the more common ones
455 from SSL 3.0/TLS 1.0.
457 So we change the selection algorithm again: Naming an explicit
458 ciphersuite selects this one ciphersuite, and any other similar
459 ciphersuite (same bitmap) from *other* protocol versions.
460 Thus, "RC4-MD5" again will properly select both the SSL 2.0
461 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
463 Since SSL 2.0 does not have any ciphersuites for which the
464 128/256 bit distinction would be relevant, this works for now.
465 The proper fix will be to use different bits for AES128 and
466 AES256, which would have avoided the problems from the beginning;
467 however, bits are scarce, so we can only do this in a new release
468 (not just a patchlevel) when we can change the SSL_CIPHER
469 definition to split the single 'unsigned long mask' bitmap into
470 multiple values to extend the available space.
474 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
476 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
477 (CVE-2006-4339) [Ben Laurie and Google Security Team]
479 *) Add AES IGE and biIGE modes.
482 *) Change the Unix randomness entropy gathering to use poll() when
483 possible instead of select(), since the latter has some
484 undesirable limitations.
485 [Darryl Miles via Richard Levitte and Bodo Moeller]
487 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
488 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
489 cannot be implicitly activated as part of, e.g., the "AES" alias.
490 However, please upgrade to OpenSSL 0.9.9[-dev] for
491 non-experimental use of the ECC ciphersuites to get TLS extension
492 support, which is required for curve and point format negotiation
493 to avoid potential handshake problems.
496 *) Disable rogue ciphersuites:
498 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
499 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
500 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
502 The latter two were purportedly from
503 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
506 Also deactivate the remaining ciphersuites from
507 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
508 unofficial, and the ID has long expired.
511 *) Fix RSA blinding Heisenbug (problems sometimes occured on
512 dual-core machines) and other potential thread-safety issues.
515 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
516 versions), which is now available for royalty-free use
517 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
518 Also, add Camellia TLS ciphersuites from RFC 4132.
520 To minimize changes between patchlevels in the OpenSSL 0.9.8
521 series, Camellia remains excluded from compilation unless OpenSSL
522 is configured with 'enable-camellia'.
525 *) Disable the padding bug check when compression is in use. The padding
526 bug check assumes the first packet is of even length, this is not
527 necessarily true if compresssion is enabled and can result in false
528 positives causing handshake failure. The actual bug test is ancient
529 code so it is hoped that implementations will either have fixed it by
530 now or any which still have the bug do not support compression.
533 Changes between 0.9.8a and 0.9.8b [04 May 2006]
535 *) When applying a cipher rule check to see if string match is an explicit
536 cipher suite and only match that one cipher suite if it is.
539 *) Link in manifests for VC++ if needed.
540 [Austin Ziegler <halostatue@gmail.com>]
542 *) Update support for ECC-based TLS ciphersuites according to
543 draft-ietf-tls-ecc-12.txt with proposed changes (but without
544 TLS extensions, which are supported starting with the 0.9.9
545 branch, not in the OpenSSL 0.9.8 branch).
548 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
549 opaque EVP_CIPHER_CTX handling.
552 *) Fixes and enhancements to zlib compression code. We now only use
553 "zlib1.dll" and use the default __cdecl calling convention on Win32
554 to conform with the standards mentioned here:
555 http://www.zlib.net/DLL_FAQ.txt
556 Static zlib linking now works on Windows and the new --with-zlib-include
557 --with-zlib-lib options to Configure can be used to supply the location
558 of the headers and library. Gracefully handle case where zlib library
562 *) Several fixes and enhancements to the OID generation code. The old code
563 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
564 handle numbers larger than ULONG_MAX, truncated printing and had a
565 non standard OBJ_obj2txt() behaviour.
568 *) Add support for building of engines under engine/ as shared libraries
569 under VC++ build system.
572 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
573 Hopefully, we will not see any false combination of paths any more.
576 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
578 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
579 (part of SSL_OP_ALL). This option used to disable the
580 countermeasure against man-in-the-middle protocol-version
581 rollback in the SSL 2.0 server implementation, which is a bad
582 idea. (CVE-2005-2969)
584 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
585 for Information Security, National Institute of Advanced Industrial
586 Science and Technology [AIST], Japan)]
588 *) Add two function to clear and return the verify parameter flags.
591 *) Keep cipherlists sorted in the source instead of sorting them at
592 runtime, thus removing the need for a lock.
595 *) Avoid some small subgroup attacks in Diffie-Hellman.
596 [Nick Mathewson and Ben Laurie]
598 *) Add functions for well-known primes.
601 *) Extended Windows CE support.
602 [Satoshi Nakamura and Andy Polyakov]
604 *) Initialize SSL_METHOD structures at compile time instead of during
605 runtime, thus removing the need for a lock.
608 *) Make PKCS7_decrypt() work even if no certificate is supplied by
609 attempting to decrypt each encrypted key in turn. Add support to
613 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
615 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
618 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
621 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
622 key into the same file any more.
625 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
628 *) Add -utf8 command line and config file option to 'ca'.
629 [Stefan <stf@udoma.org]
631 *) Removed the macro des_crypt(), as it seems to conflict with some
632 libraries. Use DES_crypt().
635 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
636 involves renaming the source and generated shared-libs for
637 both. The engines will accept the corrected or legacy ids
638 ('ncipher' and '4758_cca' respectively) when binding. NB,
639 this only applies when building 'shared'.
640 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
642 *) Add attribute functions to EVP_PKEY structure. Modify
643 PKCS12_create() to recognize a CSP name attribute and
644 use it. Make -CSP option work again in pkcs12 utility.
647 *) Add new functionality to the bn blinding code:
648 - automatic re-creation of the BN_BLINDING parameters after
649 a fixed number of uses (currently 32)
650 - add new function for parameter creation
651 - introduce flags to control the update behaviour of the
652 BN_BLINDING parameters
653 - hide BN_BLINDING structure
654 Add a second BN_BLINDING slot to the RSA structure to improve
655 performance when a single RSA object is shared among several
659 *) Add support for DTLS.
660 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
662 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
663 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
666 *) Remove buggy and incompletet DH cert support from
667 ssl/ssl_rsa.c and ssl/s3_both.c
670 *) Use SHA-1 instead of MD5 as the default digest algorithm for
671 the apps/openssl applications.
674 *) Compile clean with "-Wall -Wmissing-prototypes
675 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
676 DEBUG_SAFESTACK must also be set.
679 *) Change ./Configure so that certain algorithms can be disabled by default.
680 The new counterpiece to "no-xxx" is "enable-xxx".
682 The patented RC5 and MDC2 algorithms will now be disabled unless
683 "enable-rc5" and "enable-mdc2", respectively, are specified.
685 (IDEA remains enabled despite being patented. This is because IDEA
686 is frequently required for interoperability, and there is no license
687 fee for non-commercial use. As before, "no-idea" can be used to
688 avoid this algorithm.)
692 *) Add processing of proxy certificates (see RFC 3820). This work was
693 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
694 EGEE (Enabling Grids for E-science in Europe).
697 *) RC4 performance overhaul on modern architectures/implementations, such
698 as Intel P4, IA-64 and AMD64.
701 *) New utility extract-section.pl. This can be used specify an alternative
702 section number in a pod file instead of having to treat each file as
703 a separate case in Makefile. This can be done by adding two lines to the
706 =for comment openssl_section:XXX
708 The blank line is mandatory.
712 *) New arguments -certform, -keyform and -pass for s_client and s_server
713 to allow alternative format key and certificate files and passphrase
717 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
718 update associated structures and add various utility functions.
720 Add new policy related verify parameters, include policy checking in
721 standard verify code. Enhance 'smime' application with extra parameters
722 to support policy checking and print out.
725 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
726 Nehemiah processors. These extensions support AES encryption in hardware
727 as well as RNG (though RNG support is currently disabled).
728 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
730 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
733 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
734 [Andy Polyakov and a number of other people]
736 *) Improved PowerPC platform support. Most notably BIGNUM assembler
737 implementation contributed by IBM.
738 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
740 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
741 exponent rather than 'unsigned long'. There is a corresponding change to
742 the new 'rsa_keygen' element of the RSA_METHOD structure.
743 [Jelte Jansen, Geoff Thorpe]
745 *) Functionality for creating the initial serial number file is now
746 moved from CA.pl to the 'ca' utility with a new option -create_serial.
748 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
749 number file to 1, which is bound to cause problems. To avoid
750 the problems while respecting compatibility between different 0.9.7
751 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
752 CA.pl for serial number initialization. With the new release 0.9.8,
753 we can fix the problem directly in the 'ca' utility.)
756 *) Reduced header interdepencies by declaring more opaque objects in
757 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
758 give fewer recursive includes, which could break lazy source code - so
759 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
760 developers should define this symbol when building and using openssl to
761 ensure they track the recommended behaviour, interfaces, [etc], but
762 backwards-compatible behaviour prevails when this isn't defined.
765 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
768 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
769 This will generate a random key of the appropriate length based on the
770 cipher context. The EVP_CIPHER can provide its own random key generation
771 routine to support keys of a specific form. This is used in the des and
772 3des routines to generate a key of the correct parity. Update S/MIME
773 code to use new functions and hence generate correct parity DES keys.
774 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
775 valid (weak or incorrect parity).
778 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
779 as looking them up. This is useful when the verified structure may contain
780 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
781 present unless the new PKCS7_NO_CRL flag is asserted.
784 *) Extend ASN1 oid configuration module. It now additionally accepts the
787 shortName = some long name, 1.2.3.4
790 *) Reimplemented the BN_CTX implementation. There is now no more static
791 limitation on the number of variables it can handle nor the depth of the
792 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
793 information can now expand as required, and rather than having a single
794 static array of bignums, BN_CTX now uses a linked-list of such arrays
795 allowing it to expand on demand whilst maintaining the usefulness of
799 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
800 to allow all RSA operations to function using a single BN_CTX.
803 *) Preliminary support for certificate policy evaluation and checking. This
804 is initially intended to pass the tests outlined in "Conformance Testing
805 of Relying Party Client Certificate Path Processing Logic" v1.07.
808 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
809 remained unused and not that useful. A variety of other little bignum
810 tweaks and fixes have also been made continuing on from the audit (see
814 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
815 associated ASN1, EVP and SSL functions and old ASN1 macros.
818 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
819 and this should never fail. So the return value from the use of
820 BN_set_word() (which can fail due to needless expansion) is now deprecated;
821 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
824 *) BN_CTX_get() should return zero-valued bignums, providing the same
825 initialised value as BN_new().
826 [Geoff Thorpe, suggested by Ulf Möller]
828 *) Support for inhibitAnyPolicy certificate extension.
831 *) An audit of the BIGNUM code is underway, for which debugging code is
832 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
833 is considered valid when processing BIGNUMs, and causes execution to
834 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
835 further steps are taken to deliberately pollute unused data in BIGNUM
836 structures to try and expose faulty code further on. For now, openssl will
837 (in its default mode of operation) continue to tolerate the inconsistent
838 forms that it has tolerated in the past, but authors and packagers should
839 consider trying openssl and their own applications when compiled with
840 these debugging symbols defined. It will help highlight potential bugs in
841 their own code, and will improve the test coverage for OpenSSL itself. At
842 some point, these tighter rules will become openssl's default to improve
843 maintainability, though the assert()s and other overheads will remain only
844 in debugging configurations. See bn.h for more details.
845 [Geoff Thorpe, Nils Larsch, Ulf Möller]
847 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
848 that can only be obtained through BN_CTX_new() (which implicitly
849 initialises it). The presence of this function only made it possible
850 to overwrite an existing structure (and cause memory leaks).
853 *) Because of the callback-based approach for implementing LHASH as a
854 template type, lh_insert() adds opaque objects to hash-tables and
855 lh_doall() or lh_doall_arg() are typically used with a destructor callback
856 to clean up those corresponding objects before destroying the hash table
857 (and losing the object pointers). So some over-zealous constifications in
858 LHASH have been relaxed so that lh_insert() does not take (nor store) the
859 objects as "const" and the lh_doall[_arg] callback wrappers are not
860 prototyped to have "const" restrictions on the object pointers they are
861 given (and so aren't required to cast them away any more).
864 *) The tmdiff.h API was so ugly and minimal that our own timing utility
865 (speed) prefers to use its own implementation. The two implementations
866 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
867 its object type properly exposed (MS_TM) instead of casting to/from "char
868 *". This may still change yet if someone realises MS_TM and "ms_time_***"
869 aren't necessarily the greatest nomenclatures - but this is what was used
870 internally to the implementation so I've used that for now.
873 *) Ensure that deprecated functions do not get compiled when
874 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
875 the self-tests were still using deprecated key-generation functions so
876 these have been updated also.
879 *) Reorganise PKCS#7 code to separate the digest location functionality
880 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
881 New function PKCS7_set_digest() to set the digest type for PKCS#7
882 digestedData type. Add additional code to correctly generate the
883 digestedData type and add support for this type in PKCS7 initialization
887 *) New function PKCS7_set0_type_other() this initializes a PKCS7
888 structure of type "other".
891 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
892 sure the loop does correctly stop and breaking ("division by zero")
893 modulus operations are not performed. The (pre-generated) prime
894 table crypto/bn/bn_prime.h was already correct, but it could not be
895 re-generated on some platforms because of the "division by zero"
896 situation in the script.
897 [Ralf S. Engelschall]
899 *) Update support for ECC-based TLS ciphersuites according to
900 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
901 SHA-1 now is only used for "small" curves (where the
902 representation of a field element takes up to 24 bytes); for
903 larger curves, the field element resulting from ECDH is directly
904 used as premaster secret.
905 [Douglas Stebila (Sun Microsystems Laboratories)]
907 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
908 curve secp160r1 to the tests.
909 [Douglas Stebila (Sun Microsystems Laboratories)]
911 *) Add the possibility to load symbols globally with DSO.
912 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
914 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
915 control of the error stack.
918 *) Add support for STORE in ENGINE.
921 *) Add the STORE type. The intention is to provide a common interface
922 to certificate and key stores, be they simple file-based stores, or
923 HSM-type store, or LDAP stores, or...
924 NOTE: The code is currently UNTESTED and isn't really used anywhere.
927 *) Add a generic structure called OPENSSL_ITEM. This can be used to
928 pass a list of arguments to any function as well as provide a way
929 for a function to pass data back to the caller.
932 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
933 works like BUF_strdup() but can be used to duplicate a portion of
934 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
938 *) Add the function sk_find_ex() which works like sk_find(), but will
939 return an index to an element even if an exact match couldn't be
940 found. The index is guaranteed to point at the element where the
941 searched-for key would be inserted to preserve sorting order.
944 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
945 takes an extra flags argument for optional functionality. Currently,
946 the following flags are defined:
948 OBJ_BSEARCH_VALUE_ON_NOMATCH
949 This one gets OBJ_bsearch_ex() to return a pointer to the first
950 element where the comparing function returns a negative or zero
953 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
954 This one gets OBJ_bsearch_ex() to return a pointer to the first
955 element where the comparing function returns zero. This is useful
956 if there are more than one element where the comparing function
960 *) Make it possible to create self-signed certificates with 'openssl ca'
961 in such a way that the self-signed certificate becomes part of the
962 CA database and uses the same mechanisms for serial number generation
963 as all other certificate signing. The new flag '-selfsign' enables
964 this functionality. Adapt CA.sh and CA.pl.in.
967 *) Add functionality to check the public key of a certificate request
968 against a given private. This is useful to check that a certificate
969 request can be signed by that key (self-signing).
972 *) Make it possible to have multiple active certificates with the same
973 subject in the CA index file. This is done only if the keyword
974 'unique_subject' is set to 'no' in the main CA section (default
975 if 'CA_default') of the configuration file. The value is saved
976 with the database itself in a separate index attribute file,
977 named like the index file with '.attr' appended to the name.
980 *) Generate muti valued AVAs using '+' notation in config files for
984 *) Support for nameConstraints certificate extension.
987 *) Support for policyConstraints certificate extension.
990 *) Support for policyMappings certificate extension.
993 *) Make sure the default DSA_METHOD implementation only uses its
994 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
995 and change its own handlers to be NULL so as to remove unnecessary
996 indirection. This lets alternative implementations fallback to the
997 default implementation more easily.
1000 *) Support for directoryName in GeneralName related extensions
1004 *) Make it possible to link applications using Makefile.shared.
1005 Make that possible even when linking against static libraries!
1008 *) Support for single pass processing for S/MIME signing. This now
1009 means that S/MIME signing can be done from a pipe, in addition
1010 cleartext signing (multipart/signed type) is effectively streaming
1011 and the signed data does not need to be all held in memory.
1013 This is done with a new flag PKCS7_STREAM. When this flag is set
1014 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
1015 is done after the data is output (and digests calculated) in
1016 SMIME_write_PKCS7().
1019 *) Add full support for -rpath/-R, both in shared libraries and
1020 applications, at least on the platforms where it's known how
1024 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
1025 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
1026 will now compute a table of multiples of the generator that
1027 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
1028 faster (notably in the case of a single point multiplication,
1029 scalar * generator).
1030 [Nils Larsch, Bodo Moeller]
1032 *) IPv6 support for certificate extensions. The various extensions
1033 which use the IP:a.b.c.d can now take IPv6 addresses using the
1034 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
1038 *) Added an ENGINE that implements RSA by performing private key
1039 exponentiations with the GMP library. The conversions to and from
1040 GMP's mpz_t format aren't optimised nor are any montgomery forms
1041 cached, and on x86 it appears OpenSSL's own performance has caught up.
1042 However there are likely to be other architectures where GMP could
1043 provide a boost. This ENGINE is not built in by default, but it can be
1044 specified at Configure time and should be accompanied by the necessary
1045 linker additions, eg;
1046 ./config -DOPENSSL_USE_GMP -lgmp
1049 *) "openssl engine" will not display ENGINE/DSO load failure errors when
1050 testing availability of engines with "-t" - the old behaviour is
1051 produced by increasing the feature's verbosity with "-tt".
1054 *) ECDSA routines: under certain error conditions uninitialized BN objects
1055 could be freed. Solution: make sure initialization is performed early
1056 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
1060 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
1061 and DH_METHOD (eg. by ENGINE implementations) to override the normal
1062 software implementations. For DSA and DH, parameter generation can
1063 also be overriden by providing the appropriate method callbacks.
1066 *) Change the "progress" mechanism used in key-generation and
1067 primality testing to functions that take a new BN_GENCB pointer in
1068 place of callback/argument pairs. The new API functions have "_ex"
1069 postfixes and the older functions are reimplemented as wrappers for
1070 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
1071 declarations of the old functions to help (graceful) attempts to
1072 migrate to the new functions. Also, the new key-generation API
1073 functions operate on a caller-supplied key-structure and return
1074 success/failure rather than returning a key or NULL - this is to
1075 help make "keygen" another member function of RSA_METHOD etc.
1077 Example for using the new callback interface:
1079 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
1083 BN_GENCB_set(&my_cb, my_callback, my_arg);
1085 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
1086 /* For the meaning of a, b in calls to my_callback(), see the
1087 * documentation of the function that calls the callback.
1088 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
1089 * my_callback should return 1 if it wants BN_is_prime_ex()
1090 * to continue, or 0 to stop.
1095 *) Change the ZLIB compression method to be stateful, and make it
1096 available to TLS with the number defined in
1097 draft-ietf-tls-compression-04.txt.
1100 *) Add the ASN.1 structures and functions for CertificatePair, which
1101 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
1103 CertificatePair ::= SEQUENCE {
1104 forward [0] Certificate OPTIONAL,
1105 reverse [1] Certificate OPTIONAL,
1106 -- at least one of the pair shall be present -- }
1108 Also implement the PEM functions to read and write certificate
1109 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
1111 This needed to be defined, mostly for the sake of the LDAP
1112 attribute crossCertificatePair, but may prove useful elsewhere as
1116 *) Make it possible to inhibit symlinking of shared libraries in
1117 Makefile.shared, for Cygwin's sake.
1120 *) Extend the BIGNUM API by creating a function
1121 void BN_set_negative(BIGNUM *a, int neg);
1122 and a macro that behave like
1123 int BN_is_negative(const BIGNUM *a);
1125 to avoid the need to access 'a->neg' directly in applications.
1128 *) Implement fast modular reduction for pseudo-Mersenne primes
1129 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
1130 EC_GROUP_new_curve_GFp() will now automatically use this
1132 [Nils Larsch <nla@trustcenter.de>]
1134 *) Add new lock type (CRYPTO_LOCK_BN).
1137 *) Change the ENGINE framework to automatically load engines
1138 dynamically from specific directories unless they could be
1139 found to already be built in or loaded. Move all the
1140 current engines except for the cryptodev one to a new
1142 The engines in engines/ are built as shared libraries if
1143 the "shared" options was given to ./Configure or ./config.
1144 Otherwise, they are inserted in libcrypto.a.
1145 /usr/local/ssl/engines is the default directory for dynamic
1146 engines, but that can be overriden at configure time through
1147 the usual use of --prefix and/or --openssldir, and at run
1148 time with the environment variable OPENSSL_ENGINES.
1149 [Geoff Thorpe and Richard Levitte]
1151 *) Add Makefile.shared, a helper makefile to build shared
1152 libraries. Addapt Makefile.org.
1155 *) Add version info to Win32 DLLs.
1156 [Peter 'Luna' Runestig" <peter@runestig.com>]
1158 *) Add new 'medium level' PKCS#12 API. Certificates and keys
1159 can be added using this API to created arbitrary PKCS#12
1160 files while avoiding the low level API.
1162 New options to PKCS12_create(), key or cert can be NULL and
1163 will then be omitted from the output file. The encryption
1164 algorithm NIDs can be set to -1 for no encryption, the mac
1165 iteration count can be set to 0 to omit the mac.
1167 Enhance pkcs12 utility by making the -nokeys and -nocerts
1168 options work when creating a PKCS#12 file. New option -nomac
1169 to omit the mac, NONE can be set for an encryption algorithm.
1170 New code is modified to use the enhanced PKCS12_create()
1171 instead of the low level API.
1174 *) Extend ASN1 encoder to support indefinite length constructed
1175 encoding. This can output sequences tags and octet strings in
1176 this form. Modify pk7_asn1.c to support indefinite length
1177 encoding. This is experimental and needs additional code to
1178 be useful, such as an ASN1 bio and some enhanced streaming
1181 Extend template encode functionality so that tagging is passed
1182 down to the template encoder.
1185 *) Let 'openssl req' fail if an argument to '-newkey' is not
1186 recognized instead of using RSA as a default.
1189 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
1190 As these are not official, they are not included in "ALL";
1191 the "ECCdraft" ciphersuite group alias can be used to select them.
1192 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
1194 *) Add ECDH engine support.
1195 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
1197 *) Add ECDH in new directory crypto/ecdh/.
1198 [Douglas Stebila (Sun Microsystems Laboratories)]
1200 *) Let BN_rand_range() abort with an error after 100 iterations
1201 without success (which indicates a broken PRNG).
1204 *) Change BN_mod_sqrt() so that it verifies that the input value
1205 is really the square of the return value. (Previously,
1206 BN_mod_sqrt would show GIGO behaviour.)
1209 *) Add named elliptic curves over binary fields from X9.62, SECG,
1210 and WAP/WTLS; add OIDs that were still missing.
1212 [Sheueling Chang Shantz and Douglas Stebila
1213 (Sun Microsystems Laboratories)]
1215 *) Extend the EC library for elliptic curves over binary fields
1216 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
1219 EC_GF2m_simple_method
1223 EC_GROUP_new_curve_GF2m
1224 EC_GROUP_set_curve_GF2m
1225 EC_GROUP_get_curve_GF2m
1226 EC_POINT_set_affine_coordinates_GF2m
1227 EC_POINT_get_affine_coordinates_GF2m
1228 EC_POINT_set_compressed_coordinates_GF2m
1230 Point compression for binary fields is disabled by default for
1231 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
1234 As binary polynomials are represented as BIGNUMs, various members
1235 of the EC_GROUP and EC_POINT data structures can be shared
1236 between the implementations for prime fields and binary fields;
1237 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
1238 are essentially identical to their ..._GFp counterparts.
1239 (For simplicity, the '..._GFp' prefix has been dropped from
1240 various internal method names.)
1242 An internal 'field_div' method (similar to 'field_mul' and
1243 'field_sqr') has been added; this is used only for binary fields.
1245 [Sheueling Chang Shantz and Douglas Stebila
1246 (Sun Microsystems Laboratories)]
1248 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
1249 through methods ('mul', 'precompute_mult').
1251 The generic implementations (now internally called 'ec_wNAF_mul'
1252 and 'ec_wNAF_precomputed_mult') remain the default if these
1253 methods are undefined.
1255 [Sheueling Chang Shantz and Douglas Stebila
1256 (Sun Microsystems Laboratories)]
1258 *) New function EC_GROUP_get_degree, which is defined through
1259 EC_METHOD. For curves over prime fields, this returns the bit
1260 length of the modulus.
1262 [Sheueling Chang Shantz and Douglas Stebila
1263 (Sun Microsystems Laboratories)]
1265 *) New functions EC_GROUP_dup, EC_POINT_dup.
1266 (These simply call ..._new and ..._copy).
1268 [Sheueling Chang Shantz and Douglas Stebila
1269 (Sun Microsystems Laboratories)]
1271 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
1272 Polynomials are represented as BIGNUMs (where the sign bit is not
1273 used) in the following functions [macros]:
1276 BN_GF2m_sub [= BN_GF2m_add]
1277 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
1278 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
1279 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
1281 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
1282 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
1283 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
1284 BN_GF2m_cmp [= BN_ucmp]
1286 (Note that only the 'mod' functions are actually for fields GF(2^m).
1287 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
1289 For some functions, an the irreducible polynomial defining a
1290 field can be given as an 'unsigned int[]' with strictly
1291 decreasing elements giving the indices of those bits that are set;
1292 i.e., p[] represents the polynomial
1293 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
1295 p[0] > p[1] > ... > p[k] = 0.
1296 This applies to the following functions:
1301 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
1302 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
1304 BN_GF2m_mod_sqrt_arr
1305 BN_GF2m_mod_solve_quad_arr
1309 Conversion can be performed by the following functions:
1314 bntest.c has additional tests for binary polynomial arithmetic.
1316 Two implementations for BN_GF2m_mod_div() are available.
1317 The default algorithm simply uses BN_GF2m_mod_inv() and
1318 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
1319 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
1320 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
1322 [Sheueling Chang Shantz and Douglas Stebila
1323 (Sun Microsystems Laboratories)]
1325 *) Add new error code 'ERR_R_DISABLED' that can be used when some
1326 functionality is disabled at compile-time.
1327 [Douglas Stebila <douglas.stebila@sun.com>]
1329 *) Change default behaviour of 'openssl asn1parse' so that more
1330 information is visible when viewing, e.g., a certificate:
1332 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
1333 mode the content of non-printable OCTET STRINGs is output in a
1334 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
1335 avoid the appearance of a printable string.
1336 [Nils Larsch <nla@trustcenter.de>]
1338 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
1340 EC_GROUP_set_asn1_flag()
1341 EC_GROUP_get_asn1_flag()
1342 EC_GROUP_set_point_conversion_form()
1343 EC_GROUP_get_point_conversion_form()
1344 These control ASN1 encoding details:
1345 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
1346 has been set to OPENSSL_EC_NAMED_CURVE.
1347 - Points are encoded in uncompressed form by default; options for
1348 asn1_for are as for point2oct, namely
1349 POINT_CONVERSION_COMPRESSED
1350 POINT_CONVERSION_UNCOMPRESSED
1351 POINT_CONVERSION_HYBRID
1353 Also add 'seed' and 'seed_len' members to EC_GROUP with access
1356 EC_GROUP_get0_seed()
1357 EC_GROUP_get_seed_len()
1358 This is used only for ASN1 purposes (so far).
1359 [Nils Larsch <nla@trustcenter.de>]
1361 *) Add 'field_type' member to EC_METHOD, which holds the NID
1362 of the appropriate field type OID. The new function
1363 EC_METHOD_get_field_type() returns this value.
1364 [Nils Larsch <nla@trustcenter.de>]
1369 EC_POINT_point2hex()
1370 EC_POINT_hex2point()
1371 providing useful interfaces to EC_POINT_point2oct() and
1372 EC_POINT_oct2point().
1373 [Nils Larsch <nla@trustcenter.de>]
1375 *) Change internals of the EC library so that the functions
1376 EC_GROUP_set_generator()
1377 EC_GROUP_get_generator()
1378 EC_GROUP_get_order()
1379 EC_GROUP_get_cofactor()
1380 are implemented directly in crypto/ec/ec_lib.c and not dispatched
1381 to methods, which would lead to unnecessary code duplication when
1382 adding different types of curves.
1383 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
1385 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
1386 arithmetic, and such that modified wNAFs are generated
1387 (which avoid length expansion in many cases).
1390 *) Add a function EC_GROUP_check_discriminant() (defined via
1391 EC_METHOD) that verifies that the curve discriminant is non-zero.
1393 Add a function EC_GROUP_check() that makes some sanity tests
1394 on a EC_GROUP, its generator and order. This includes
1395 EC_GROUP_check_discriminant().
1396 [Nils Larsch <nla@trustcenter.de>]
1398 *) Add ECDSA in new directory crypto/ecdsa/.
1400 Add applications 'openssl ecparam' and 'openssl ecdsa'
1401 (these are based on 'openssl dsaparam' and 'openssl dsa').
1403 ECDSA support is also included in various other files across the
1404 library. Most notably,
1405 - 'openssl req' now has a '-newkey ecdsa:file' option;
1406 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
1407 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
1408 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
1409 them suitable for ECDSA where domain parameters must be
1410 extracted before the specific public key;
1411 - ECDSA engine support has been added.
1412 [Nils Larsch <nla@trustcenter.de>]
1414 *) Include some named elliptic curves, and add OIDs from X9.62,
1415 SECG, and WAP/WTLS. Each curve can be obtained from the new
1417 EC_GROUP_new_by_curve_name(),
1418 and the list of available named curves can be obtained with
1419 EC_get_builtin_curves().
1420 Also add a 'curve_name' member to EC_GROUP objects, which can be
1422 EC_GROUP_set_curve_name()
1423 EC_GROUP_get_curve_name()
1424 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
1426 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
1427 was actually never needed) and in BN_mul(). The removal in BN_mul()
1428 required a small change in bn_mul_part_recursive() and the addition
1429 of the functions bn_cmp_part_words(), bn_sub_part_words() and
1430 bn_add_part_words(), which do the same thing as bn_cmp_words(),
1431 bn_sub_words() and bn_add_words() except they take arrays with
1435 Changes between 0.9.7m and 0.9.7n [xx XXX xxxx]
1437 *) In the SSL/TLS server implementation, be strict about session ID
1438 context matching (which matters if an application uses a single
1439 external cache for different purposes). Previously,
1440 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
1441 set. This did ensure strict client verification, but meant that,
1442 with applications using a single external cache for quite
1443 different requirements, clients could circumvent ciphersuite
1444 restrictions for a given session ID context by starting a session
1445 in a different context.
1448 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
1450 *) Cleanse PEM buffers before freeing them since they may contain
1452 [Benjamin Bennett <ben@psc.edu>]
1454 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1455 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1456 authentication-only ciphersuites.
1459 *) Since AES128 and AES256 share a single mask bit in the logic of
1460 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1461 kludge to work properly if AES128 is available and AES256 isn't.
1464 *) Expand security boundary to match 1.1.1 module.
1467 *) Remove redundant features: hash file source, editing of test vectors
1468 modify fipsld to use external fips_premain.c signature.
1471 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
1472 run algorithm test programs.
1475 *) Make algorithm test programs more tolerant of whitespace.
1478 *) Have SSL/TLS server implementation tolerate "mismatched" record
1479 protocol version while receiving ClientHello even if the
1480 ClientHello is fragmented. (The server can't insist on the
1481 particular protocol version it has chosen before the ServerHello
1482 message has informed the client about his choice.)
1485 *) Load error codes if they are not already present instead of using a
1486 static variable. This allows them to be cleanly unloaded and reloaded.
1489 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
1491 *) Introduce limits to prevent malicious keys being able to
1492 cause a denial of service. (CVE-2006-2940)
1493 [Steve Henson, Bodo Moeller]
1495 *) Fix ASN.1 parsing of certain invalid structures that can result
1496 in a denial of service. (CVE-2006-2937) [Steve Henson]
1498 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1499 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1501 *) Fix SSL client code which could crash if connecting to a
1502 malicious SSLv2 server. (CVE-2006-4343)
1503 [Tavis Ormandy and Will Drewry, Google Security Team]
1505 *) Change ciphersuite string processing so that an explicit
1506 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
1507 will no longer include "AES128-SHA"), and any other similar
1508 ciphersuite (same bitmap) from *other* protocol versions (so that
1509 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
1510 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
1511 changes from 0.9.8b and 0.9.8d.
1514 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
1516 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1517 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1519 *) Change the Unix randomness entropy gathering to use poll() when
1520 possible instead of select(), since the latter has some
1521 undesirable limitations.
1522 [Darryl Miles via Richard Levitte and Bodo Moeller]
1524 *) Disable rogue ciphersuites:
1526 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1527 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1528 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1530 The latter two were purportedly from
1531 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1534 Also deactive the remaining ciphersuites from
1535 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1536 unofficial, and the ID has long expired.
1539 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1540 dual-core machines) and other potential thread-safety issues.
1543 Changes between 0.9.7i and 0.9.7j [04 May 2006]
1545 *) Adapt fipsld and the build system to link against the validated FIPS
1546 module in FIPS mode.
1549 *) Fixes for VC++ 2005 build under Windows.
1552 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
1553 from a Windows bash shell such as MSYS. It is autodetected from the
1554 "config" script when run from a VC++ environment. Modify standard VC++
1555 build to use fipscanister.o from the GNU make build.
1558 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
1560 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
1561 The value now differs depending on if you build for FIPS or not.
1562 BEWARE! A program linked with a shared FIPSed libcrypto can't be
1563 safely run with a non-FIPSed libcrypto, as it may crash because of
1564 the difference induced by this change.
1567 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
1569 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1570 (part of SSL_OP_ALL). This option used to disable the
1571 countermeasure against man-in-the-middle protocol-version
1572 rollback in the SSL 2.0 server implementation, which is a bad
1573 idea. (CVE-2005-2969)
1575 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1576 for Information Security, National Institute of Advanced Industrial
1577 Science and Technology [AIST], Japan)]
1579 *) Minimal support for X9.31 signatures and PSS padding modes. This is
1580 mainly for FIPS compliance and not fully integrated at this stage.
1583 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
1584 the exponentiation using a fixed-length exponent. (Otherwise,
1585 the information leaked through timing could expose the secret key
1586 after many signatures; cf. Bleichenbacher's attack on DSA with
1590 *) Make a new fixed-window mod_exp implementation the default for
1591 RSA, DSA, and DH private-key operations so that the sequence of
1592 squares and multiplies and the memory access pattern are
1593 independent of the particular secret key. This will mitigate
1594 cache-timing and potential related attacks.
1596 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
1597 and this is automatically used by BN_mod_exp_mont() if the new flag
1598 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
1599 will use this BN flag for private exponents unless the flag
1600 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
1601 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
1603 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
1605 *) Change the client implementation for SSLv23_method() and
1606 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
1607 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
1608 (Previously, the SSL 2.0 backwards compatible Client Hello
1609 message format would be used even with SSL_OP_NO_SSLv2.)
1612 *) Add support for smime-type MIME parameter in S/MIME messages which some
1616 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
1617 a threadsafe manner. Modify rsa code to use new function and add calls
1618 to dsa and dh code (which had race conditions before).
1621 *) Include the fixed error library code in the C error file definitions
1622 instead of fixing them up at runtime. This keeps the error code
1623 structures constant.
1626 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
1628 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
1631 *) Fixes for newer kerberos headers. NB: the casts are needed because
1632 the 'length' field is signed on one version and unsigned on another
1633 with no (?) obvious way to tell the difference, without these VC++
1634 complains. Also the "definition" of FAR (blank) is no longer included
1635 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
1636 some needed definitions.
1639 *) Undo Cygwin change.
1642 *) Added support for proxy certificates according to RFC 3820.
1643 Because they may be a security thread to unaware applications,
1644 they must be explicitely allowed in run-time. See
1645 docs/HOWTO/proxy_certificates.txt for further information.
1648 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
1650 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
1651 server and client random values. Previously
1652 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
1653 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
1655 This change has negligible security impact because:
1657 1. Server and client random values still have 24 bytes of pseudo random
1660 2. Server and client random values are sent in the clear in the initial
1663 3. The master secret is derived using the premaster secret (48 bytes in
1664 size for static RSA ciphersuites) as well as client server and random
1667 The OpenSSL team would like to thank the UK NISCC for bringing this issue
1670 [Stephen Henson, reported by UK NISCC]
1672 *) Use Windows randomness collection on Cygwin.
1675 *) Fix hang in EGD/PRNGD query when communication socket is closed
1676 prematurely by EGD/PRNGD.
1677 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
1679 *) Prompt for pass phrases when appropriate for PKCS12 input format.
1682 *) Back-port of selected performance improvements from development
1683 branch, as well as improved support for PowerPC platforms.
1686 *) Add lots of checks for memory allocation failure, error codes to indicate
1687 failure and freeing up memory if a failure occurs.
1688 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
1690 *) Add new -passin argument to dgst.
1693 *) Perform some character comparisons of different types in X509_NAME_cmp:
1694 this is needed for some certificates that reencode DNs into UTF8Strings
1695 (in violation of RFC3280) and can't or wont issue name rollover
1699 *) Make an explicit check during certificate validation to see that
1700 the CA setting in each certificate on the chain is correct. As a
1701 side effect always do the following basic checks on extensions,
1702 not just when there's an associated purpose to the check:
1704 - if there is an unhandled critical extension (unless the user
1705 has chosen to ignore this fault)
1706 - if the path length has been exceeded (if one is set at all)
1707 - that certain extensions fit the associated purpose (if one has
1711 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
1713 *) Avoid a race condition when CRLs are checked in a multi threaded
1714 environment. This would happen due to the reordering of the revoked
1715 entries during signature checking and serial number lookup. Now the
1716 encoding is cached and the serial number sort performed under a lock.
1717 Add new STACK function sk_is_sorted().
1720 *) Add Delta CRL to the extension code.
1723 *) Various fixes to s3_pkt.c so alerts are sent properly.
1724 [David Holmes <d.holmes@f5.com>]
1726 *) Reduce the chances of duplicate issuer name and serial numbers (in
1727 violation of RFC3280) using the OpenSSL certificate creation utilities.
1728 This is done by creating a random 64 bit value for the initial serial
1729 number when a serial number file is created or when a self signed
1730 certificate is created using 'openssl req -x509'. The initial serial
1731 number file is created using 'openssl x509 -next_serial' in CA.pl
1732 rather than being initialized to 1.
1735 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
1737 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
1738 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
1739 [Joe Orton, Steve Henson]
1741 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
1743 [Joe Orton, Steve Henson]
1745 *) Make it possible to have multiple active certificates with the same
1746 subject in the CA index file. This is done only if the keyword
1747 'unique_subject' is set to 'no' in the main CA section (default
1748 if 'CA_default') of the configuration file. The value is saved
1749 with the database itself in a separate index attribute file,
1750 named like the index file with '.attr' appended to the name.
1753 *) X509 verify fixes. Disable broken certificate workarounds when
1754 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
1755 keyUsage extension present. Don't accept CRLs with unhandled critical
1756 extensions: since verify currently doesn't process CRL extensions this
1757 rejects a CRL with *any* critical extensions. Add new verify error codes
1761 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
1762 A clarification of RFC2560 will require the use of OCTET STRINGs and
1763 some implementations cannot handle the current raw format. Since OpenSSL
1764 copies and compares OCSP nonces as opaque blobs without any attempt at
1765 parsing them this should not create any compatibility issues.
1768 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
1769 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
1770 this HMAC (and other) operations are several times slower than OpenSSL
1774 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
1775 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1777 *) Use the correct content when signing type "other".
1780 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
1782 *) Fix various bugs revealed by running the NISCC test suite:
1784 Stop out of bounds reads in the ASN1 code when presented with
1785 invalid tags (CVE-2003-0543 and CVE-2003-0544).
1787 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
1789 If verify callback ignores invalid public key errors don't try to check
1790 certificate signature with the NULL public key.
1794 *) New -ignore_err option in ocsp application to stop the server
1795 exiting on the first error in a request.
1798 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
1799 if the server requested one: as stated in TLS 1.0 and SSL 3.0
1803 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
1804 extra data after the compression methods not only for TLS 1.0
1805 but also for SSL 3.0 (as required by the specification).
1806 [Bodo Moeller; problem pointed out by Matthias Loepfe]
1808 *) Change X509_certificate_type() to mark the key as exported/exportable
1809 when it's 512 *bits* long, not 512 bytes.
1812 *) Change AES_cbc_encrypt() so it outputs exact multiple of
1813 blocks during encryption.
1816 *) Various fixes to base64 BIO and non blocking I/O. On write
1817 flushes were not handled properly if the BIO retried. On read
1818 data was not being buffered properly and had various logic bugs.
1819 This also affects blocking I/O when the data being decoded is a
1823 *) Various S/MIME bugfixes and compatibility changes:
1824 output correct application/pkcs7 MIME type if
1825 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
1826 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
1827 of files as .eml work). Correctly handle very long lines in MIME
1831 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
1833 *) Countermeasure against the Klima-Pokorny-Rosa extension of
1834 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
1835 a protocol version number mismatch like a decryption error
1836 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
1839 *) Turn on RSA blinding by default in the default implementation
1840 to avoid a timing attack. Applications that don't want it can call
1841 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
1842 They would be ill-advised to do so in most cases.
1843 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
1845 *) Change RSA blinding code so that it works when the PRNG is not
1846 seeded (in this case, the secret RSA exponent is abused as
1847 an unpredictable seed -- if it is not unpredictable, there
1848 is no point in blinding anyway). Make RSA blinding thread-safe
1849 by remembering the creator's thread ID in rsa->blinding and
1850 having all other threads use local one-time blinding factors
1851 (this requires more computation than sharing rsa->blinding, but
1852 avoids excessive locking; and if an RSA object is not shared
1853 between threads, blinding will still be very fast).
1856 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
1857 ENGINE as defaults for all supported algorithms irrespective of
1858 the 'flags' parameter. 'flags' is now honoured, so applications
1859 should make sure they are passing it correctly.
1862 *) Target "mingw" now allows native Windows code to be generated in
1863 the Cygwin environment as well as with the MinGW compiler.
1866 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
1868 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
1869 via timing by performing a MAC computation even if incorrrect
1870 block cipher padding has been found. This is a countermeasure
1871 against active attacks where the attacker has to distinguish
1872 between bad padding and a MAC verification error. (CVE-2003-0078)
1874 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
1875 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
1876 Martin Vuagnoux (EPFL, Ilion)]
1878 *) Make the no-err option work as intended. The intention with no-err
1879 is not to have the whole error stack handling routines removed from
1880 libcrypto, it's only intended to remove all the function name and
1881 reason texts, thereby removing some of the footprint that may not
1882 be interesting if those errors aren't displayed anyway.
1884 NOTE: it's still possible for any application or module to have it's
1885 own set of error texts inserted. The routines are there, just not
1886 used by default when no-err is given.
1889 *) Add support for FreeBSD on IA64.
1890 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
1892 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
1893 Kerberos function mit_des_cbc_cksum(). Before this change,
1894 the value returned by DES_cbc_cksum() was like the one from
1895 mit_des_cbc_cksum(), except the bytes were swapped.
1896 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
1898 *) Allow an application to disable the automatic SSL chain building.
1899 Before this a rather primitive chain build was always performed in
1900 ssl3_output_cert_chain(): an application had no way to send the
1901 correct chain if the automatic operation produced an incorrect result.
1903 Now the chain builder is disabled if either:
1905 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
1907 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
1909 The reasoning behind this is that an application would not want the
1910 auto chain building to take place if extra chain certificates are
1911 present and it might also want a means of sending no additional
1912 certificates (for example the chain has two certificates and the
1916 *) Add the possibility to build without the ENGINE framework.
1917 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1919 *) Under Win32 gmtime() can return NULL: check return value in
1920 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
1923 *) DSA routines: under certain error conditions uninitialized BN objects
1924 could be freed. Solution: make sure initialization is performed early
1925 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
1926 Nils Larsch <nla@trustcenter.de> via PR#459)
1929 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
1930 checked on reconnect on the client side, therefore session resumption
1931 could still fail with a "ssl session id is different" error. This
1932 behaviour is masked when SSL_OP_ALL is used due to
1933 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
1934 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1935 followup to PR #377.
1938 *) IA-32 assembler support enhancements: unified ELF targets, support
1939 for SCO/Caldera platforms, fix for Cygwin shared build.
1942 *) Add support for FreeBSD on sparc64. As a consequence, support for
1943 FreeBSD on non-x86 processors is separate from x86 processors on
1944 the config script, much like the NetBSD support.
1945 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
1947 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
1949 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
1952 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
1953 code (06) was taken as the first octet of the session ID and the last
1954 octet was ignored consequently. As a result SSLv2 client side session
1955 caching could not have worked due to the session ID mismatch between
1957 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1961 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
1962 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
1966 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
1967 seems that in spite of existing for more than a year, many application
1968 author have done nothing to provide the necessary callbacks, which
1969 means that this particular engine will not work properly anywhere.
1970 This is a very unfortunate situation which forces us, in the name
1971 of usability, to give the hw_ncipher.c a static lock, which is part
1973 NOTE: This is for the 0.9.7 series ONLY. This hack will never
1974 appear in 0.9.8 or later. We EXPECT application authors to have
1975 dealt properly with this when 0.9.8 is released (unless we actually
1976 make such changes in the libcrypto locking code that changes will
1977 have to be made anyway).
1980 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
1981 octets have been read, EOF or an error occurs. Without this change
1982 some truncated ASN1 structures will not produce an error.
1985 *) Disable Heimdal support, since it hasn't been fully implemented.
1986 Still give the possibility to force the use of Heimdal, but with
1987 warnings and a request that patches get sent to openssl-dev.
1990 *) Add the VC-CE target, introduce the WINCE sysname, and add
1991 INSTALL.WCE and appropriate conditionals to make it build.
1992 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1994 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
1995 cygssl-x.y.z.dll, where x, y and z are the major, minor and
1996 edit numbers of the version.
1997 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
1999 *) Introduce safe string copy and catenation functions
2000 (BUF_strlcpy() and BUF_strlcat()).
2001 [Ben Laurie (CHATS) and Richard Levitte]
2003 *) Avoid using fixed-size buffers for one-line DNs.
2004 [Ben Laurie (CHATS)]
2006 *) Add BUF_MEM_grow_clean() to avoid information leakage when
2007 resizing buffers containing secrets, and use where appropriate.
2008 [Ben Laurie (CHATS)]
2010 *) Avoid using fixed size buffers for configuration file location.
2011 [Ben Laurie (CHATS)]
2013 *) Avoid filename truncation for various CA files.
2014 [Ben Laurie (CHATS)]
2016 *) Use sizeof in preference to magic numbers.
2017 [Ben Laurie (CHATS)]
2019 *) Avoid filename truncation in cert requests.
2020 [Ben Laurie (CHATS)]
2022 *) Add assertions to check for (supposedly impossible) buffer
2024 [Ben Laurie (CHATS)]
2026 *) Don't cache truncated DNS entries in the local cache (this could
2027 potentially lead to a spoofing attack).
2028 [Ben Laurie (CHATS)]
2030 *) Fix various buffers to be large enough for hex/decimal
2031 representations in a platform independent manner.
2032 [Ben Laurie (CHATS)]
2034 *) Add CRYPTO_realloc_clean() to avoid information leakage when
2035 resizing buffers containing secrets, and use where appropriate.
2036 [Ben Laurie (CHATS)]
2038 *) Add BIO_indent() to avoid much slightly worrying code to do
2040 [Ben Laurie (CHATS)]
2042 *) Convert sprintf()/BIO_puts() to BIO_printf().
2043 [Ben Laurie (CHATS)]
2045 *) buffer_gets() could terminate with the buffer only half
2047 [Ben Laurie (CHATS)]
2049 *) Add assertions to prevent user-supplied crypto functions from
2050 overflowing internal buffers by having large block sizes, etc.
2051 [Ben Laurie (CHATS)]
2053 *) New OPENSSL_assert() macro (similar to assert(), but enabled
2055 [Ben Laurie (CHATS)]
2057 *) Eliminate unused copy of key in RC4.
2058 [Ben Laurie (CHATS)]
2060 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
2061 [Ben Laurie (CHATS)]
2063 *) Fix off-by-one error in EGD path.
2064 [Ben Laurie (CHATS)]
2066 *) If RANDFILE path is too long, ignore instead of truncating.
2067 [Ben Laurie (CHATS)]
2069 *) Eliminate unused and incorrectly sized X.509 structure
2071 [Ben Laurie (CHATS)]
2073 *) Eliminate unused and dangerous function knumber().
2074 [Ben Laurie (CHATS)]
2076 *) Eliminate unused and dangerous structure, KSSL_ERR.
2077 [Ben Laurie (CHATS)]
2079 *) Protect against overlong session ID context length in an encoded
2080 session object. Since these are local, this does not appear to be
2082 [Ben Laurie (CHATS)]
2084 *) Change from security patch (see 0.9.6e below) that did not affect
2085 the 0.9.6 release series:
2087 Remote buffer overflow in SSL3 protocol - an attacker could
2088 supply an oversized master key in Kerberos-enabled versions.
2090 [Ben Laurie (CHATS)]
2092 *) Change the SSL kerb5 codes to match RFC 2712.
2095 *) Make -nameopt work fully for req and add -reqopt switch.
2096 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
2098 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
2099 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
2101 *) Make sure tests can be performed even if the corresponding algorithms
2102 have been removed entirely. This was also the last step to make
2103 OpenSSL compilable with DJGPP under all reasonable conditions.
2104 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
2106 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
2107 to allow version independent disabling of normally unselected ciphers,
2108 which may be activated as a side-effect of selecting a single cipher.
2110 (E.g., cipher list string "RSA" enables ciphersuites that are left
2111 out of "ALL" because they do not provide symmetric encryption.
2112 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
2113 [Lutz Jaenicke, Bodo Moeller]
2115 *) Add appropriate support for separate platform-dependent build
2116 directories. The recommended way to make a platform-dependent
2117 build directory is the following (tested on Linux), maybe with
2120 # Place yourself outside of the OpenSSL source tree. In
2121 # this example, the environment variable OPENSSL_SOURCE
2122 # is assumed to contain the absolute OpenSSL source directory.
2123 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
2124 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
2125 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
2126 mkdir -p `dirname $F`
2127 ln -s $OPENSSL_SOURCE/$F $F
2130 To be absolutely sure not to disturb the source tree, a "make clean"
2131 is a good thing. If it isn't successfull, don't worry about it,
2132 it probably means the source directory is very clean.
2135 *) Make sure any ENGINE control commands make local copies of string
2136 pointers passed to them whenever necessary. Otherwise it is possible
2137 the caller may have overwritten (or deallocated) the original string
2138 data when a later ENGINE operation tries to use the stored values.
2139 [Götz Babin-Ebell <babinebell@trustcenter.de>]
2141 *) Improve diagnostics in file reading and command-line digests.
2142 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
2144 *) Add AES modes CFB and OFB to the object database. Correct an
2145 error in AES-CFB decryption.
2148 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
2149 allows existing EVP_CIPHER_CTX structures to be reused after
2150 calling EVP_*Final(). This behaviour is used by encryption
2151 BIOs and some applications. This has the side effect that
2152 applications must explicitly clean up cipher contexts with
2153 EVP_CIPHER_CTX_cleanup() or they will leak memory.
2156 *) Check the values of dna and dnb in bn_mul_recursive before calling
2157 bn_mul_comba (a non zero value means the a or b arrays do not contain
2158 n2 elements) and fallback to bn_mul_normal if either is not zero.
2161 *) Fix escaping of non-ASCII characters when using the -subj option
2162 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
2165 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
2166 form for "surname", serialNumber has no short form.
2167 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
2168 therefore remove "mail" short name for "internet 7".
2169 The OID for unique identifiers in X509 certificates is
2170 x500UniqueIdentifier, not uniqueIdentifier.
2171 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
2174 *) Add an "init" command to the ENGINE config module and auto initialize
2175 ENGINEs. Without any "init" command the ENGINE will be initialized
2176 after all ctrl commands have been executed on it. If init=1 the
2177 ENGINE is initailized at that point (ctrls before that point are run
2178 on the uninitialized ENGINE and after on the initialized one). If
2179 init=0 then the ENGINE will not be iniatialized at all.
2182 *) Fix the 'app_verify_callback' interface so that the user-defined
2183 argument is actually passed to the callback: In the
2184 SSL_CTX_set_cert_verify_callback() prototype, the callback
2185 declaration has been changed from
2188 int (*cb)(X509_STORE_CTX *,void *);
2189 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
2190 i=s->ctx->app_verify_callback(&ctx)
2191 has been changed into
2192 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
2194 To update applications using SSL_CTX_set_cert_verify_callback(),
2195 a dummy argument can be added to their callback functions.
2196 [D. K. Smetters <smetters@parc.xerox.com>]
2198 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
2199 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
2201 *) Add and OPENSSL_LOAD_CONF define which will cause
2202 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
2203 This allows older applications to transparently support certain
2204 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
2205 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
2206 load the config file and OPENSSL_add_all_algorithms_conf() which will
2207 always load it have also been added.
2210 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
2211 Adjust NIDs and EVP layer.
2212 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2214 *) Config modules support in openssl utility.
2216 Most commands now load modules from the config file,
2217 though in a few (such as version) this isn't done
2218 because it couldn't be used for anything.
2220 In the case of ca and req the config file used is
2221 the same as the utility itself: that is the -config
2222 command line option can be used to specify an
2226 *) Move default behaviour from OPENSSL_config(). If appname is NULL
2227 use "openssl_conf" if filename is NULL use default openssl config file.
2230 *) Add an argument to OPENSSL_config() to allow the use of an alternative
2231 config section name. Add a new flag to tolerate a missing config file
2232 and move code to CONF_modules_load_file().
2235 *) Support for crypto accelerator cards from Accelerated Encryption
2236 Processing, www.aep.ie. (Use engine 'aep')
2237 The support was copied from 0.9.6c [engine] and adapted/corrected
2238 to work with the new engine framework.
2239 [AEP Inc. and Richard Levitte]
2241 *) Support for SureWare crypto accelerator cards from Baltimore
2242 Technologies. (Use engine 'sureware')
2243 The support was copied from 0.9.6c [engine] and adapted
2244 to work with the new engine framework.
2247 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
2248 make the newer ENGINE framework commands for the CHIL engine work.
2249 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
2251 *) Make it possible to produce shared libraries on ReliantUNIX.
2252 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
2254 *) Add the configuration target debug-linux-ppro.
2255 Make 'openssl rsa' use the general key loading routines
2256 implemented in apps.c, and make those routines able to
2257 handle the key format FORMAT_NETSCAPE and the variant
2259 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2261 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
2262 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2264 *) Add -keyform to rsautl, and document -engine.
2265 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
2267 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
2268 BIO_R_NO_SUCH_FILE error code rather than the generic
2269 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
2272 *) Add new functions
2274 ERR_peek_last_error_line
2275 ERR_peek_last_error_line_data.
2276 These are similar to
2279 ERR_peek_error_line_data,
2280 but report on the latest error recorded rather than the first one
2281 still in the error queue.
2282 [Ben Laurie, Bodo Moeller]
2284 *) default_algorithms option in ENGINE config module. This allows things
2286 default_algorithms = ALL
2287 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
2290 *) Prelminary ENGINE config module.
2293 *) New experimental application configuration code.
2296 *) Change the AES code to follow the same name structure as all other
2297 symmetric ciphers, and behave the same way. Move everything to
2298 the directory crypto/aes, thereby obsoleting crypto/rijndael.
2299 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2301 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
2302 [Ben Laurie and Theo de Raadt]
2304 *) Add option to output public keys in req command.
2305 [Massimiliano Pala madwolf@openca.org]
2307 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
2308 (up to about 10% better than before for P-192 and P-224).
2311 *) New functions/macros
2313 SSL_CTX_set_msg_callback(ctx, cb)
2314 SSL_CTX_set_msg_callback_arg(ctx, arg)
2315 SSL_set_msg_callback(ssl, cb)
2316 SSL_set_msg_callback_arg(ssl, arg)
2318 to request calling a callback function
2320 void cb(int write_p, int version, int content_type,
2321 const void *buf, size_t len, SSL *ssl, void *arg)
2323 whenever a protocol message has been completely received
2324 (write_p == 0) or sent (write_p == 1). Here 'version' is the
2325 protocol version according to which the SSL library interprets
2326 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
2327 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
2328 the content type as defined in the SSL 3.0/TLS 1.0 protocol
2329 specification (change_cipher_spec(20), alert(21), handshake(22)).
2330 'buf' and 'len' point to the actual message, 'ssl' to the
2331 SSL object, and 'arg' is the application-defined value set by
2332 SSL[_CTX]_set_msg_callback_arg().
2334 'openssl s_client' and 'openssl s_server' have new '-msg' options
2335 to enable a callback that displays all protocol messages.
2338 *) Change the shared library support so shared libraries are built as
2339 soon as the corresponding static library is finished, and thereby get
2340 openssl and the test programs linked against the shared library.
2341 This still only happens when the keyword "shard" has been given to
2342 the configuration scripts.
2344 NOTE: shared library support is still an experimental thing, and
2345 backward binary compatibility is still not guaranteed.
2346 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
2348 *) Add support for Subject Information Access extension.
2349 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2351 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
2352 additional bytes when new memory had to be allocated, not just
2353 when reusing an existing buffer.
2356 *) New command line and configuration option 'utf8' for the req command.
2357 This allows field values to be specified as UTF8 strings.
2360 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
2361 runs for the former and machine-readable output for the latter.
2364 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
2365 of the e-mail address in the DN (i.e., it will go into a certificate
2366 extension only). The new configuration file option 'email_in_dn = no'
2367 has the same effect.
2368 [Massimiliano Pala madwolf@openca.org]
2370 *) Change all functions with names starting with des_ to be starting
2371 with DES_ instead. Add wrappers that are compatible with libdes,
2372 but are named _ossl_old_des_*. Finally, add macros that map the
2373 des_* symbols to the corresponding _ossl_old_des_* if libdes
2374 compatibility is desired. If OpenSSL 0.9.6c compatibility is
2375 desired, the des_* symbols will be mapped to DES_*, with one
2378 Since we provide two compatibility mappings, the user needs to
2379 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
2380 compatibility is desired. The default (i.e., when that macro
2381 isn't defined) is OpenSSL 0.9.6c compatibility.
2383 There are also macros that enable and disable the support of old
2384 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
2385 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
2386 are defined, the default will apply: to support the old des routines.
2388 In either case, one must include openssl/des.h to get the correct
2389 definitions. Do not try to just include openssl/des_old.h, that
2392 NOTE: This is a major break of an old API into a new one. Software
2393 authors are encouraged to switch to the DES_ style functions. Some
2394 time in the future, des_old.h and the libdes compatibility functions
2395 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
2396 default), and then completely removed.
2399 *) Test for certificates which contain unsupported critical extensions.
2400 If such a certificate is found during a verify operation it is
2401 rejected by default: this behaviour can be overridden by either
2402 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
2403 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
2404 X509_supported_extension() has also been added which returns 1 if a
2405 particular extension is supported.
2408 *) Modify the behaviour of EVP cipher functions in similar way to digests
2409 to retain compatibility with existing code.
2412 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
2413 compatibility with existing code. In particular the 'ctx' parameter does
2414 not have to be to be initialized before the call to EVP_DigestInit() and
2415 it is tidied up after a call to EVP_DigestFinal(). New function
2416 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
2417 EVP_MD_CTX_copy() changed to not require the destination to be
2418 initialized valid and new function EVP_MD_CTX_copy_ex() added which
2419 requires the destination to be valid.
2421 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
2422 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
2425 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
2426 so that complete 'Handshake' protocol structures are kept in memory
2427 instead of overwriting 'msg_type' and 'length' with 'body' data.
2430 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
2431 [Massimo Santin via Richard Levitte]
2433 *) Major restructuring to the underlying ENGINE code. This includes
2434 reduction of linker bloat, separation of pure "ENGINE" manipulation
2435 (initialisation, etc) from functionality dealing with implementations
2436 of specific crypto iterfaces. This change also introduces integrated
2437 support for symmetric ciphers and digest implementations - so ENGINEs
2438 can now accelerate these by providing EVP_CIPHER and EVP_MD
2439 implementations of their own. This is detailed in crypto/engine/README
2440 as it couldn't be adequately described here. However, there are a few
2441 API changes worth noting - some RSA, DSA, DH, and RAND functions that
2442 were changed in the original introduction of ENGINE code have now
2443 reverted back - the hooking from this code to ENGINE is now a good
2444 deal more passive and at run-time, operations deal directly with
2445 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
2446 dereferencing through an ENGINE pointer any more. Also, the ENGINE
2447 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
2448 they were not being used by the framework as there is no concept of a
2449 BIGNUM_METHOD and they could not be generalised to the new
2450 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
2451 ENGINE_cpy() has been removed as it cannot be consistently defined in
2455 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
2458 *) Change mkdef.pl to sort symbols that get the same entry number,
2459 and make sure the automatically generated functions ERR_load_*
2460 become part of libeay.num as well.
2463 *) New function SSL_renegotiate_pending(). This returns true once
2464 renegotiation has been requested (either SSL_renegotiate() call
2465 or HelloRequest/ClientHello receveived from the peer) and becomes
2466 false once a handshake has been completed.
2467 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
2468 sends a HelloRequest, but does not ensure that a handshake takes
2469 place. SSL_renegotiate_pending() is useful for checking if the
2470 client has followed the request.)
2473 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
2474 By default, clients may request session resumption even during
2475 renegotiation (if session ID contexts permit); with this option,
2476 session resumption is possible only in the first handshake.
2478 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
2479 more bits available for options that should not be part of
2480 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
2483 *) Add some demos for certificate and certificate request creation.
2486 *) Make maximum certificate chain size accepted from the peer application
2487 settable (SSL*_get/set_max_cert_list()), as proposed by
2488 "Douglas E. Engert" <deengert@anl.gov>.
2491 *) Add support for shared libraries for Unixware-7
2492 (Boyd Lynn Gerber <gerberb@zenez.com>).
2495 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
2496 be done prior to destruction. Use this to unload error strings from
2497 ENGINEs that load their own error strings. NB: This adds two new API
2498 functions to "get" and "set" this destroy handler in an ENGINE.
2501 *) Alter all existing ENGINE implementations (except "openssl" and
2502 "openbsd") to dynamically instantiate their own error strings. This
2503 makes them more flexible to be built both as statically-linked ENGINEs
2504 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
2505 Also, add stub code to each that makes building them as self-contained
2506 shared-libraries easier (see README.ENGINE).
2509 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
2510 implementations into applications that are completely implemented in
2511 self-contained shared-libraries. The "dynamic" ENGINE exposes control
2512 commands that can be used to configure what shared-library to load and
2513 to control aspects of the way it is handled. Also, made an update to
2514 the README.ENGINE file that brings its information up-to-date and
2515 provides some information and instructions on the "dynamic" ENGINE
2516 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
2519 *) Make it possible to unload ranges of ERR strings with a new
2520 "ERR_unload_strings" function.
2523 *) Add a copy() function to EVP_MD.
2526 *) Make EVP_MD routines take a context pointer instead of just the
2527 md_data void pointer.
2530 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
2531 that the digest can only process a single chunk of data
2532 (typically because it is provided by a piece of
2533 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
2534 is only going to provide a single chunk of data, and hence the
2535 framework needn't accumulate the data for oneshot drivers.
2538 *) As with "ERR", make it possible to replace the underlying "ex_data"
2539 functions. This change also alters the storage and management of global
2540 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
2541 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
2542 index counters. The API functions that use this state have been changed
2543 to take a "class_index" rather than pointers to the class's local STACK
2544 and counter, and there is now an API function to dynamically create new
2545 classes. This centralisation allows us to (a) plug a lot of the
2546 thread-safety problems that existed, and (b) makes it possible to clean
2547 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
2548 such data would previously have always leaked in application code and
2549 workarounds were in place to make the memory debugging turn a blind eye
2550 to it. Application code that doesn't use this new function will still
2551 leak as before, but their memory debugging output will announce it now
2552 rather than letting it slide.
2554 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
2555 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
2556 has a return value to indicate success or failure.
2559 *) Make it possible to replace the underlying "ERR" functions such that the
2560 global state (2 LHASH tables and 2 locks) is only used by the "default"
2561 implementation. This change also adds two functions to "get" and "set"
2562 the implementation prior to it being automatically set the first time
2563 any other ERR function takes place. Ie. an application can call "get",
2564 pass the return value to a module it has just loaded, and that module
2565 can call its own "set" function using that value. This means the
2566 module's "ERR" operations will use (and modify) the error state in the
2567 application and not in its own statically linked copy of OpenSSL code.
2570 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
2571 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
2572 the operation, and provides a more encapsulated way for external code
2573 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
2574 to use these functions rather than manually incrementing the counts.
2576 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
2579 *) Add EVP test program.
2582 *) Add symmetric cipher support to ENGINE. Expect the API to change!
2585 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
2586 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
2587 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
2588 These allow a CRL to be built without having to access X509_CRL fields
2589 directly. Modify 'ca' application to use new functions.
2592 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
2593 bug workarounds. Rollback attack detection is a security feature.
2594 The problem will only arise on OpenSSL servers when TLSv1 is not
2595 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
2596 Software authors not wanting to support TLSv1 will have special reasons
2597 for their choice and can explicitly enable this option.
2598 [Bodo Moeller, Lutz Jaenicke]
2600 *) Rationalise EVP so it can be extended: don't include a union of
2601 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
2602 (similar to those existing for EVP_CIPHER_CTX).
2607 EVP_MD_CTX_init(&md); /* new function call */
2608 EVP_DigestInit(&md, EVP_sha1());
2609 EVP_DigestUpdate(&md, in, len);
2610 EVP_DigestFinal(&md, out, NULL);
2611 EVP_MD_CTX_cleanup(&md); /* new function call */
2615 *) Make DES key schedule conform to the usual scheme, as well as
2616 correcting its structure. This means that calls to DES functions
2617 now have to pass a pointer to a des_key_schedule instead of a
2618 plain des_key_schedule (which was actually always a pointer
2621 des_key_schedule ks;
2623 des_set_key_checked(..., &ks);
2624 des_ncbc_encrypt(..., &ks, ...);
2626 (Note that a later change renames 'des_...' into 'DES_...'.)
2629 *) Initial reduction of linker bloat: the use of some functions, such as
2630 PEM causes large amounts of unused functions to be linked in due to
2631 poor organisation. For example pem_all.c contains every PEM function
2632 which has a knock on effect of linking in large amounts of (unused)
2633 ASN1 code. Grouping together similar functions and splitting unrelated
2634 functions prevents this.
2637 *) Cleanup of EVP macros.
2640 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
2641 correct _ecb suffix.
2644 *) Add initial OCSP responder support to ocsp application. The
2645 revocation information is handled using the text based index
2646 use by the ca application. The responder can either handle
2647 requests generated internally, supplied in files (for example
2648 via a CGI script) or using an internal minimal server.
2651 *) Add configuration choices to get zlib compression for TLS.
2654 *) Changes to Kerberos SSL for RFC 2712 compliance:
2655 1. Implemented real KerberosWrapper, instead of just using
2656 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
2657 2. Implemented optional authenticator field of KerberosWrapper.
2659 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
2660 and authenticator structs; see crypto/krb5/.
2662 Generalized Kerberos calls to support multiple Kerberos libraries.
2663 [Vern Staats <staatsvr@asc.hpc.mil>,
2664 Jeffrey Altman <jaltman@columbia.edu>
2665 via Richard Levitte]
2667 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
2668 already does with RSA. testdsa.h now has 'priv_key/pub_key'
2669 values for each of the key sizes rather than having just
2670 parameters (and 'speed' generating keys each time).
2673 *) Speed up EVP routines.
2676 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
2677 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
2678 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
2679 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
2681 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
2682 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
2683 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
2686 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
2688 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
2691 *) Added the OS2-EMX target.
2692 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
2694 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
2695 to support NCONF routines in extension code. New function CONF_set_nconf()
2696 to allow functions which take an NCONF to also handle the old LHASH
2697 structure: this means that the old CONF compatible routines can be
2698 retained (in particular wrt extensions) without having to duplicate the
2699 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
2702 *) Enhance the general user interface with mechanisms for inner control
2703 and with possibilities to have yes/no kind of prompts.
2706 *) Change all calls to low level digest routines in the library and
2707 applications to use EVP. Add missing calls to HMAC_cleanup() and
2708 don't assume HMAC_CTX can be copied using memcpy().
2709 [Verdon Walker <VWalker@novell.com>, Steve Henson]
2711 *) Add the possibility to control engines through control names but with
2712 arbitrary arguments instead of just a string.
2713 Change the key loaders to take a UI_METHOD instead of a callback
2714 function pointer. NOTE: this breaks binary compatibility with earlier
2715 versions of OpenSSL [engine].
2716 Adapt the nCipher code for these new conditions and add a card insertion
2720 *) Enhance the general user interface with mechanisms to better support
2721 dialog box interfaces, application-defined prompts, the possibility
2722 to use defaults (for example default passwords from somewhere else)
2723 and interrupts/cancellations.
2726 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
2727 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
2730 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
2731 tidy up some unnecessarily weird code in 'sk_new()').
2732 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
2734 *) Change the key loading routines for ENGINEs to use the same kind
2735 callback (pem_password_cb) as all other routines that need this
2739 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
2740 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
2741 than this minimum value is recommended.
2744 *) New random seeder for OpenVMS, using the system process statistics
2745 that are easily reachable.
2748 *) Windows apparently can't transparently handle global
2749 variables defined in DLLs. Initialisations such as:
2751 const ASN1_ITEM *it = &ASN1_INTEGER_it;
2753 wont compile. This is used by the any applications that need to
2754 declare their own ASN1 modules. This was fixed by adding the option
2755 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
2756 needed for static libraries under Win32.
2759 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
2760 setting of purpose and trust fields. New X509_STORE trust and
2761 purpose functions and tidy up setting in other SSL functions.
2764 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
2765 structure. These are inherited by X509_STORE_CTX when it is
2766 initialised. This allows various defaults to be set in the
2767 X509_STORE structure (such as flags for CRL checking and custom
2768 purpose or trust settings) for functions which only use X509_STORE_CTX
2769 internally such as S/MIME.
2771 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
2772 trust settings if they are not set in X509_STORE. This allows X509_STORE
2773 purposes and trust (in S/MIME for example) to override any set by default.
2775 Add command line options for CRL checking to smime, s_client and s_server
2779 *) Initial CRL based revocation checking. If the CRL checking flag(s)
2780 are set then the CRL is looked up in the X509_STORE structure and
2781 its validity and signature checked, then if the certificate is found
2782 in the CRL the verify fails with a revoked error.
2784 Various new CRL related callbacks added to X509_STORE_CTX structure.
2786 Command line options added to 'verify' application to support this.
2788 This needs some additional work, such as being able to handle multiple
2789 CRLs with different times, extension based lookup (rather than just
2790 by subject name) and ultimately more complete V2 CRL extension
2794 *) Add a general user interface API (crypto/ui/). This is designed
2795 to replace things like des_read_password and friends (backward
2796 compatibility functions using this new API are provided).
2797 The purpose is to remove prompting functions from the DES code
2798 section as well as provide for prompting through dialog boxes in
2799 a window system and the like.
2802 *) Add "ex_data" support to ENGINE so implementations can add state at a
2803 per-structure level rather than having to store it globally.
2806 *) Make it possible for ENGINE structures to be copied when retrieved by
2807 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
2808 This causes the "original" ENGINE structure to act like a template,
2809 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
2810 operational state can be localised to each ENGINE structure, despite the
2811 fact they all share the same "methods". New ENGINE structures returned in
2812 this case have no functional references and the return value is the single
2813 structural reference. This matches the single structural reference returned
2814 by ENGINE_by_id() normally, when it is incremented on the pre-existing
2818 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
2819 needs to match any other type at all we need to manually clear the
2823 *) Changes to the "openssl engine" utility to include;
2824 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
2825 about an ENGINE's available control commands.
2826 - executing control commands from command line arguments using the
2827 '-pre' and '-post' switches. '-post' is only used if '-t' is
2828 specified and the ENGINE is successfully initialised. The syntax for
2829 the individual commands are colon-separated, for example;
2830 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
2833 *) New dynamic control command support for ENGINEs. ENGINEs can now
2834 declare their own commands (numbers), names (strings), descriptions,
2835 and input types for run-time discovery by calling applications. A
2836 subset of these commands are implicitly classed as "executable"
2837 depending on their input type, and only these can be invoked through
2838 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
2839 can be based on user input, config files, etc). The distinction is
2840 that "executable" commands cannot return anything other than a boolean
2841 result and can only support numeric or string input, whereas some
2842 discoverable commands may only be for direct use through
2843 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
2844 pointers, or other custom uses. The "executable" commands are to
2845 support parameterisations of ENGINE behaviour that can be
2846 unambiguously defined by ENGINEs and used consistently across any
2847 OpenSSL-based application. Commands have been added to all the
2848 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
2849 control over shared-library paths without source code alterations.
2852 *) Changed all ENGINE implementations to dynamically allocate their
2853 ENGINEs rather than declaring them statically. Apart from this being
2854 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
2855 this also allows the implementations to compile without using the
2856 internal engine_int.h header.
2859 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
2860 'const' value. Any code that should be able to modify a RAND_METHOD
2861 should already have non-const pointers to it (ie. they should only
2862 modify their own ones).
2865 *) Made a variety of little tweaks to the ENGINE code.
2866 - "atalla" and "ubsec" string definitions were moved from header files
2867 to C code. "nuron" string definitions were placed in variables
2868 rather than hard-coded - allowing parameterisation of these values
2869 later on via ctrl() commands.
2870 - Removed unused "#if 0"'d code.
2871 - Fixed engine list iteration code so it uses ENGINE_free() to release
2872 structural references.
2873 - Constified the RAND_METHOD element of ENGINE structures.
2874 - Constified various get/set functions as appropriate and added
2875 missing functions (including a catch-all ENGINE_cpy that duplicates
2876 all ENGINE values onto a new ENGINE except reference counts/state).
2877 - Removed NULL parameter checks in get/set functions. Setting a method
2878 or function to NULL is a way of cancelling out a previously set
2879 value. Passing a NULL ENGINE parameter is just plain stupid anyway
2880 and doesn't justify the extra error symbols and code.
2881 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
2882 flags from engine_int.h to engine.h.
2883 - Changed prototypes for ENGINE handler functions (init(), finish(),
2884 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
2887 *) Implement binary inversion algorithm for BN_mod_inverse in addition
2888 to the algorithm using long division. The binary algorithm can be
2889 used only if the modulus is odd. On 32-bit systems, it is faster
2890 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
2891 roughly 5-15% for 256-bit moduli), so we use it only for moduli
2892 up to 450 bits. In 64-bit environments, the binary algorithm
2893 appears to be advantageous for much longer moduli; here we use it
2894 for moduli up to 2048 bits.
2897 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
2898 could not support the combine flag in choice fields.
2901 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
2902 extensions from a certificate request to the certificate.
2905 *) Allow multiple 'certopt' and 'nameopt' options to be separated
2906 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
2907 file: this allows the display of the certificate about to be
2908 signed to be customised, to allow certain fields to be included
2909 or excluded and extension details. The old system didn't display
2910 multicharacter strings properly, omitted fields not in the policy
2911 and couldn't display additional details such as extensions.
2914 *) Function EC_POINTs_mul for multiple scalar multiplication
2915 of an arbitrary number of elliptic curve points
2916 \sum scalars[i]*points[i],
2917 optionally including the generator defined for the EC_GROUP:
2918 scalar*generator + \sum scalars[i]*points[i].
2920 EC_POINT_mul is a simple wrapper function for the typical case
2921 that the point list has just one item (besides the optional
2925 *) First EC_METHODs for curves over GF(p):
2927 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
2928 operations and provides various method functions that can also
2929 operate with faster implementations of modular arithmetic.
2931 EC_GFp_mont_method() reuses most functions that are part of
2932 EC_GFp_simple_method, but uses Montgomery arithmetic.
2934 [Bodo Moeller; point addition and point doubling
2935 implementation directly derived from source code provided by
2936 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
2938 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
2939 crypto/ec/ec_lib.c):
2941 Curves are EC_GROUP objects (with an optional group generator)
2942 based on EC_METHODs that are built into the library.
2944 Points are EC_POINT objects based on EC_GROUP objects.
2946 Most of the framework would be able to handle curves over arbitrary
2947 finite fields, but as there are no obvious types for fields other
2948 than GF(p), some functions are limited to that for now.
2951 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
2952 that the file contains a complete HTTP response.
2955 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
2956 change the def and num file printf format specifier from "%-40sXXX"
2957 to "%-39s XXX". The latter will always guarantee a space after the
2958 field while the former will cause them to run together if the field
2959 is 40 of more characters long.
2962 *) Constify the cipher and digest 'method' functions and structures
2963 and modify related functions to take constant EVP_MD and EVP_CIPHER
2967 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
2968 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
2971 *) Modify EVP_Digest*() routines so they now return values. Although the
2972 internal software routines can never fail additional hardware versions
2976 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
2978 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
2979 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
2982 ERR_R_NESTED_ASN1_ERROR
2984 ERR_R_MISSING_ASN1_EOS
2985 were 4 .. 9, conflicting with
2986 ERR_LIB_RSA (= ERR_R_RSA_LIB)
2988 ERR_LIB_PEM (= ERR_R_PEM_LIB).
2989 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
2991 Add new error code 'ERR_R_INTERNAL_ERROR'.
2994 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
2998 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
2999 sets the subject name for a new request or supersedes the
3000 subject name in a given request. Formats that can be parsed are
3001 'CN=Some Name, OU=myOU, C=IT'
3003 'CN=Some Name/OU=myOU/C=IT'.
3005 Add options '-batch' and '-verbose' to 'openssl req'.
3006 [Massimiliano Pala <madwolf@hackmasters.net>]
3008 *) Introduce the possibility to access global variables through
3009 functions on platform were that's the best way to handle exporting
3010 global variables in shared libraries. To enable this functionality,
3011 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
3012 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
3013 is normally done by Configure or something similar).
3015 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
3016 in the source file (foo.c) like this:
3018 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
3019 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
3021 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
3022 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
3024 OPENSSL_DECLARE_GLOBAL(int,foo);
3025 #define foo OPENSSL_GLOBAL_REF(foo)
3026 OPENSSL_DECLARE_GLOBAL(double,bar);
3027 #define bar OPENSSL_GLOBAL_REF(bar)
3029 The #defines are very important, and therefore so is including the
3030 header file everywhere where the defined globals are used.
3032 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
3033 of ASN.1 items, but that structure is a bit different.
3035 The largest change is in util/mkdef.pl which has been enhanced with
3036 better and easier to understand logic to choose which symbols should
3037 go into the Windows .def files as well as a number of fixes and code
3038 cleanup (among others, algorithm keywords are now sorted
3039 lexicographically to avoid constant rewrites).
3042 *) In BN_div() keep a copy of the sign of 'num' before writing the
3043 result to 'rm' because if rm==num the value will be overwritten
3044 and produce the wrong result if 'num' is negative: this caused
3045 problems with BN_mod() and BN_nnmod().
3048 *) Function OCSP_request_verify(). This checks the signature on an
3049 OCSP request and verifies the signer certificate. The signer
3050 certificate is just checked for a generic purpose and OCSP request
3054 *) Add OCSP_check_validity() function to check the validity of OCSP
3055 responses. OCSP responses are prepared in real time and may only
3056 be a few seconds old. Simply checking that the current time lies
3057 between thisUpdate and nextUpdate max reject otherwise valid responses
3058 caused by either OCSP responder or client clock inaccuracy. Instead
3059 we allow thisUpdate and nextUpdate to fall within a certain period of
3060 the current time. The age of the response can also optionally be
3061 checked. Two new options -validity_period and -status_age added to
3065 *) If signature or public key algorithm is unrecognized print out its
3066 OID rather that just UNKNOWN.
3069 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
3070 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
3071 ID to be generated from the issuer certificate alone which can then be
3072 passed to OCSP_id_issuer_cmp().
3075 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
3076 ASN1 modules to export functions returning ASN1_ITEM pointers
3077 instead of the ASN1_ITEM structures themselves. This adds several
3078 new macros which allow the underlying ASN1 function/structure to
3079 be accessed transparently. As a result code should not use ASN1_ITEM
3080 references directly (such as &X509_it) but instead use the relevant
3081 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
3082 use of the new ASN1 code on platforms where exporting structures
3083 is problematical (for example in shared libraries) but exporting
3084 functions returning pointers to structures is not.
3087 *) Add support for overriding the generation of SSL/TLS session IDs.
3088 These callbacks can be registered either in an SSL_CTX or per SSL.
3089 The purpose of this is to allow applications to control, if they wish,
3090 the arbitrary values chosen for use as session IDs, particularly as it
3091 can be useful for session caching in multiple-server environments. A
3092 command-line switch for testing this (and any client code that wishes
3093 to use such a feature) has been added to "s_server".
3094 [Geoff Thorpe, Lutz Jaenicke]
3096 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
3097 of the form '#if defined(...) || defined(...) || ...' and
3098 '#if !defined(...) && !defined(...) && ...'. This also avoids
3099 the growing number of special cases it was previously handling.
3102 *) Make all configuration macros available for application by making
3103 sure they are available in opensslconf.h, by giving them names starting
3104 with "OPENSSL_" to avoid conflicts with other packages and by making
3105 sure e_os2.h will cover all platform-specific cases together with
3107 Additionally, it is now possible to define configuration/platform-
3108 specific names (called "system identities"). In the C code, these
3109 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
3110 macro with the name beginning with "OPENSSL_SYS_", which is determined
3111 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
3115 *) New option -set_serial to 'req' and 'x509' this allows the serial
3116 number to use to be specified on the command line. Previously self
3117 signed certificates were hard coded with serial number 0 and the
3118 CA options of 'x509' had to use a serial number in a file which was
3122 *) New options to 'ca' utility to support V2 CRL entry extensions.
3123 Currently CRL reason, invalidity date and hold instruction are
3124 supported. Add new CRL extensions to V3 code and some new objects.
3127 *) New function EVP_CIPHER_CTX_set_padding() this is used to
3128 disable standard block padding (aka PKCS#5 padding) in the EVP
3129 API, which was previously mandatory. This means that the data is
3130 not padded in any way and so the total length much be a multiple
3131 of the block size, otherwise an error occurs.
3134 *) Initial (incomplete) OCSP SSL support.
3137 *) New function OCSP_parse_url(). This splits up a URL into its host,
3138 port and path components: primarily to parse OCSP URLs. New -url
3139 option to ocsp utility.
3142 *) New nonce behavior. The return value of OCSP_check_nonce() now
3143 reflects the various checks performed. Applications can decide
3144 whether to tolerate certain situations such as an absent nonce
3145 in a response when one was present in a request: the ocsp application
3146 just prints out a warning. New function OCSP_add1_basic_nonce()
3147 this is to allow responders to include a nonce in a response even if
3148 the request is nonce-less.
3151 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
3152 skipped when using openssl x509 multiple times on a single input file,
3153 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
3156 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
3157 set string type: to handle setting ASN1_TIME structures. Fix ca
3158 utility to correctly initialize revocation date of CRLs.
3161 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
3162 the clients preferred ciphersuites and rather use its own preferences.
3163 Should help to work around M$ SGC (Server Gated Cryptography) bug in
3164 Internet Explorer by ensuring unchanged hash method during stepup.
3165 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
3168 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
3169 to aes and add a new 'exist' option to print out symbols that don't
3173 *) Additional options to ocsp utility to allow flags to be set and
3174 additional certificates supplied.
3177 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
3178 OCSP client a number of certificate to only verify the response
3182 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
3183 handle the new API. Currently only ECB, CBC modes supported. Add new
3186 Add TLS AES ciphersuites as described in RFC3268, "Advanced
3187 Encryption Standard (AES) Ciphersuites for Transport Layer
3188 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
3189 not enabled by default and were not part of the "ALL" ciphersuite
3190 alias because they were not yet official; they could be
3191 explicitly requested by specifying the "AESdraft" ciphersuite
3192 group alias. In the final release of OpenSSL 0.9.7, the group
3193 alias is called "AES" and is part of "ALL".)
3194 [Ben Laurie, Steve Henson, Bodo Moeller]
3196 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
3197 request to response.
3200 *) Functions for OCSP responders. OCSP_request_onereq_count(),
3201 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
3202 extract information from a certificate request. OCSP_response_create()
3203 creates a response and optionally adds a basic response structure.
3204 OCSP_basic_add1_status() adds a complete single response to a basic
3205 response and returns the OCSP_SINGLERESP structure just added (to allow
3206 extensions to be included for example). OCSP_basic_add1_cert() adds a
3207 certificate to a basic response and OCSP_basic_sign() signs a basic
3208 response with various flags. New helper functions ASN1_TIME_check()
3209 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
3210 (converts ASN1_TIME to GeneralizedTime).
3213 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
3214 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
3215 structure from a certificate. X509_pubkey_digest() digests the public_key
3216 contents: this is used in various key identifiers.
3219 *) Make sk_sort() tolerate a NULL argument.
3220 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
3222 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
3223 passed by the function are trusted implicitly. If any of them signed the
3224 response then it is assumed to be valid and is not verified.
3227 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
3228 to data. This was previously part of the PKCS7 ASN1 code. This
3229 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
3230 [Steve Henson, reported by Kenneth R. Robinette
3231 <support@securenetterm.com>]
3233 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
3234 routines: without these tracing memory leaks is very painful.
3235 Fix leaks in PKCS12 and PKCS7 routines.
3238 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
3239 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
3240 effectively meant GeneralizedTime would never be used. Now it
3241 is initialised to -1 but X509_time_adj() now has to check the value
3242 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
3243 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
3244 [Steve Henson, reported by Kenneth R. Robinette
3245 <support@securenetterm.com>]
3247 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
3248 result in a zero length in the ASN1_INTEGER structure which was
3249 not consistent with the structure when d2i_ASN1_INTEGER() was used
3250 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
3251 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
3252 where it did not print out a minus for negative ASN1_INTEGER.
3255 *) Add summary printout to ocsp utility. The various functions which
3256 convert status values to strings have been renamed to:
3257 OCSP_response_status_str(), OCSP_cert_status_str() and
3258 OCSP_crl_reason_str() and are no longer static. New options
3259 to verify nonce values and to disable verification. OCSP response
3260 printout format cleaned up.
3263 *) Add additional OCSP certificate checks. These are those specified
3264 in RFC2560. This consists of two separate checks: the CA of the
3265 certificate being checked must either be the OCSP signer certificate
3266 or the issuer of the OCSP signer certificate. In the latter case the
3267 OCSP signer certificate must contain the OCSP signing extended key
3268 usage. This check is performed by attempting to match the OCSP
3269 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
3270 in the OCSP_CERTID structures of the response.
3273 *) Initial OCSP certificate verification added to OCSP_basic_verify()
3274 and related routines. This uses the standard OpenSSL certificate
3275 verify routines to perform initial checks (just CA validity) and
3276 to obtain the certificate chain. Then additional checks will be
3277 performed on the chain. Currently the root CA is checked to see
3278 if it is explicitly trusted for OCSP signing. This is used to set
3279 a root CA as a global signing root: that is any certificate that
3280 chains to that CA is an acceptable OCSP signing certificate.
3283 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
3284 extensions from a separate configuration file.
3285 As when reading extensions from the main configuration file,
3286 the '-extensions ...' option may be used for specifying the
3288 [Massimiliano Pala <madwolf@comune.modena.it>]
3290 *) New OCSP utility. Allows OCSP requests to be generated or
3291 read. The request can be sent to a responder and the output
3292 parsed, outputed or printed in text form. Not complete yet:
3293 still needs to check the OCSP response validity.
3296 *) New subcommands for 'openssl ca':
3297 'openssl ca -status <serial>' prints the status of the cert with
3298 the given serial number (according to the index file).
3299 'openssl ca -updatedb' updates the expiry status of certificates
3301 [Massimiliano Pala <madwolf@comune.modena.it>]
3303 *) New '-newreq-nodes' command option to CA.pl. This is like
3304 '-newreq', but calls 'openssl req' with the '-nodes' option
3305 so that the resulting key is not encrypted.
3306 [Damien Miller <djm@mindrot.org>]
3308 *) New configuration for the GNU Hurd.
3309 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
3311 *) Initial code to implement OCSP basic response verify. This
3312 is currently incomplete. Currently just finds the signer's
3313 certificate and verifies the signature on the response.
3316 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
3317 value of OPENSSLDIR. This is available via the new '-d' option
3318 to 'openssl version', and is also included in 'openssl version -a'.
3321 *) Allowing defining memory allocation callbacks that will be given
3322 file name and line number information in additional arguments
3323 (a const char* and an int). The basic functionality remains, as
3324 well as the original possibility to just replace malloc(),
3325 realloc() and free() by functions that do not know about these
3326 additional arguments. To register and find out the current
3327 settings for extended allocation functions, the following
3328 functions are provided:
3330 CRYPTO_set_mem_ex_functions
3331 CRYPTO_set_locked_mem_ex_functions
3332 CRYPTO_get_mem_ex_functions
3333 CRYPTO_get_locked_mem_ex_functions
3335 These work the same way as CRYPTO_set_mem_functions and friends.
3336 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
3337 extended allocation function is enabled.
3338 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
3339 a conventional allocation function is enabled.
3340 [Richard Levitte, Bodo Moeller]
3342 *) Finish off removing the remaining LHASH function pointer casts.
3343 There should no longer be any prototype-casting required when using
3344 the LHASH abstraction, and any casts that remain are "bugs". See
3345 the callback types and macros at the head of lhash.h for details
3346 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
3349 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
3350 If /dev/[u]random devices are not available or do not return enough
3351 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
3353 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
3354 /etc/entropy will be queried once each in this sequence, quering stops
3355 when enough entropy was collected without querying more sockets.
3358 *) Change the Unix RAND_poll() variant to be able to poll several
3359 random devices, as specified by DEVRANDOM, until a sufficient amount
3360 of data has been collected. We spend at most 10 ms on each file
3361 (select timeout) and read in non-blocking mode. DEVRANDOM now
3362 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
3363 (previously it was just the string "/dev/urandom"), so on typical
3364 platforms the 10 ms delay will never occur.
3365 Also separate out the Unix variant to its own file, rand_unix.c.
3366 For VMS, there's a currently-empty rand_vms.c.
3369 *) Move OCSP client related routines to ocsp_cl.c. These
3370 provide utility functions which an application needing
3371 to issue a request to an OCSP responder and analyse the
3372 response will typically need: as opposed to those which an
3373 OCSP responder itself would need which will be added later.
3375 OCSP_request_sign() signs an OCSP request with an API similar
3376 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
3377 response. OCSP_response_get1_basic() extracts basic response
3378 from response. OCSP_resp_find_status(): finds and extracts status
3379 information from an OCSP_CERTID structure (which will be created
3380 when the request structure is built). These are built from lower
3381 level functions which work on OCSP_SINGLERESP structures but
3382 wont normally be used unless the application wishes to examine
3383 extensions in the OCSP response for example.
3385 Replace nonce routines with a pair of functions.
3386 OCSP_request_add1_nonce() adds a nonce value and optionally
3387 generates a random value. OCSP_check_nonce() checks the
3388 validity of the nonce in an OCSP response.
3391 *) Change function OCSP_request_add() to OCSP_request_add0_id().
3392 This doesn't copy the supplied OCSP_CERTID and avoids the
3393 need to free up the newly created id. Change return type
3394 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
3395 This can then be used to add extensions to the request.
3396 Deleted OCSP_request_new(), since most of its functionality
3397 is now in OCSP_REQUEST_new() (and the case insensitive name
3398 clash) apart from the ability to set the request name which
3399 will be added elsewhere.
3402 *) Update OCSP API. Remove obsolete extensions argument from
3403 various functions. Extensions are now handled using the new
3404 OCSP extension code. New simple OCSP HTTP function which
3405 can be used to send requests and parse the response.
3408 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
3409 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
3410 uses the special reorder version of SET OF to sort the attributes
3411 and reorder them to match the encoded order. This resolves a long
3412 standing problem: a verify on a PKCS7 structure just after signing
3413 it used to fail because the attribute order did not match the
3414 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
3415 it uses the received order. This is necessary to tolerate some broken
3416 software that does not order SET OF. This is handled by encoding
3417 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
3418 to produce the required SET OF.
3421 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
3422 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
3423 files to get correct declarations of the ASN.1 item variables.
3426 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
3427 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
3428 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
3429 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
3430 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
3431 ASN1_ITEM and no wrapper functions.
3434 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
3435 replace the old function pointer based I/O routines. Change most of
3436 the *_d2i_bio() and *_d2i_fp() functions to use these.
3439 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
3440 lines, recognice more "algorithms" that can be deselected, and make
3441 it complain about algorithm deselection that isn't recognised.
3444 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
3445 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
3446 to use new functions. Add NO_ASN1_OLD which can be set to remove
3447 some old style ASN1 functions: this can be used to determine if old
3448 code will still work when these eventually go away.
3451 *) New extension functions for OCSP structures, these follow the
3452 same conventions as certificates and CRLs.
3455 *) New function X509V3_add1_i2d(). This automatically encodes and
3456 adds an extension. Its behaviour can be customised with various
3457 flags to append, replace or delete. Various wrappers added for
3458 certifcates and CRLs.
3461 *) Fix to avoid calling the underlying ASN1 print routine when
3462 an extension cannot be parsed. Correct a typo in the
3463 OCSP_SERVICELOC extension. Tidy up print OCSP format.
3466 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
3467 entries for variables.
3470 *) Add functionality to apps/openssl.c for detecting locking
3471 problems: As the program is single-threaded, all we have
3472 to do is register a locking callback using an array for
3473 storing which locks are currently held by the program.
3476 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
3477 SSL_get_ex_data_X509_STORE_idx(), which is used in
3478 ssl_verify_cert_chain() and thus can be called at any time
3479 during TLS/SSL handshakes so that thread-safety is essential.
3480 Unfortunately, the ex_data design is not at all suited
3481 for multi-threaded use, so it probably should be abolished.
3484 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
3485 [Broadcom, tweaked and integrated by Geoff Thorpe]
3487 *) Move common extension printing code to new function
3488 X509V3_print_extensions(). Reorganise OCSP print routines and
3489 implement some needed OCSP ASN1 functions. Add OCSP extensions.
3492 *) New function X509_signature_print() to remove duplication in some
3496 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
3497 set (this was treated exactly the same as SET OF previously). This
3498 is used to reorder the STACK representing the structure to match the
3499 encoding. This will be used to get round a problem where a PKCS7
3500 structure which was signed could not be verified because the STACK
3501 order did not reflect the encoded order.
3504 *) Reimplement the OCSP ASN1 module using the new code.
3507 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
3508 for its ASN1 operations. The old style function pointers still exist
3509 for now but they will eventually go away.
3512 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
3513 completely replaces the old ASN1 functionality with a table driven
3514 encoder and decoder which interprets an ASN1_ITEM structure describing
3515 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
3516 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
3517 has also been converted to the new form.
3520 *) Change BN_mod_exp_recp so that negative moduli are tolerated
3521 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
3522 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
3523 for negative moduli.
3526 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
3527 of not touching the result's sign bit.
3530 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
3534 *) Changed the LHASH code to use prototypes for callbacks, and created
3535 macros to declare and implement thin (optionally static) functions
3536 that provide type-safety and avoid function pointer casting for the
3537 type-specific callbacks.
3540 *) Added Kerberos Cipher Suites to be used with TLS, as written in
3542 [Veers Staats <staatsvr@asc.hpc.mil>,
3543 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
3545 *) Reformat the FAQ so the different questions and answers can be divided
3546 in sections depending on the subject.
3549 *) Have the zlib compression code load ZLIB.DLL dynamically under
3553 *) New function BN_mod_sqrt for computing square roots modulo a prime
3554 (using the probabilistic Tonelli-Shanks algorithm unless
3555 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
3556 be handled deterministically).
3557 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3559 *) Make BN_mod_inverse faster by explicitly handling small quotients
3560 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
3561 512 bits], about 30% for larger ones [1024 or 2048 bits].)
3564 *) New function BN_kronecker.
3567 *) Fix BN_gcd so that it works on negative inputs; the result is
3568 positive unless both parameters are zero.
3569 Previously something reasonably close to an infinite loop was
3570 possible because numbers could be growing instead of shrinking
3571 in the implementation of Euclid's algorithm.
3574 *) Fix BN_is_word() and BN_is_one() macros to take into account the
3575 sign of the number in question.
3577 Fix BN_is_word(a,w) to work correctly for w == 0.
3579 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
3580 because its test if the absolute value of 'a' equals 'w'.
3581 Note that BN_abs_is_word does *not* handle w == 0 reliably;
3582 it exists mostly for use in the implementations of BN_is_zero(),
3583 BN_is_one(), and BN_is_word().
3586 *) New function BN_swap.
3589 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
3590 the exponentiation functions are more likely to produce reasonable
3591 results on negative inputs.
3594 *) Change BN_mod_mul so that the result is always non-negative.
3595 Previously, it could be negative if one of the factors was negative;
3596 I don't think anyone really wanted that behaviour.
3599 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
3600 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
3601 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
3602 and add new functions:
3611 BN_mod_lshift1_quick
3615 These functions always generate non-negative results.
3617 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
3618 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
3620 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
3621 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
3622 be reduced modulo m.
3623 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3626 The following entry accidentily appeared in the CHANGES file
3627 distributed with OpenSSL 0.9.7. The modifications described in
3628 it do *not* apply to OpenSSL 0.9.7.
3630 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3631 was actually never needed) and in BN_mul(). The removal in BN_mul()
3632 required a small change in bn_mul_part_recursive() and the addition
3633 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3634 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3635 bn_sub_words() and bn_add_words() except they take arrays with
3640 *) In 'openssl passwd', verify passwords read from the terminal
3641 unless the '-salt' option is used (which usually means that
3642 verification would just waste user's time since the resulting
3643 hash is going to be compared with some given password hash)
3644 or the new '-noverify' option is used.
3646 This is an incompatible change, but it does not affect
3647 non-interactive use of 'openssl passwd' (passwords on the command
3648 line, '-stdin' option, '-in ...' option) and thus should not
3652 *) Remove all references to RSAref, since there's no more need for it.
3655 *) Make DSO load along a path given through an environment variable
3656 (SHLIB_PATH) with shl_load().
3659 *) Constify the ENGINE code as a result of BIGNUM constification.
3660 Also constify the RSA code and most things related to it. In a
3661 few places, most notable in the depth of the ASN.1 code, ugly
3662 casts back to non-const were required (to be solved at a later
3666 *) Make it so the openssl application has all engines loaded by default.
3669 *) Constify the BIGNUM routines a little more.
3672 *) Add the following functions:
3674 ENGINE_load_cswift()
3676 ENGINE_load_atalla()
3678 ENGINE_load_builtin_engines()
3680 That way, an application can itself choose if external engines that
3681 are built-in in OpenSSL shall ever be used or not. The benefit is
3682 that applications won't have to be linked with libdl or other dso
3683 libraries unless it's really needed.
3685 Changed 'openssl engine' to load all engines on demand.
3686 Changed the engine header files to avoid the duplication of some
3687 declarations (they differed!).
3690 *) 'openssl engine' can now list capabilities.
3693 *) Better error reporting in 'openssl engine'.
3696 *) Never call load_dh_param(NULL) in s_server.
3699 *) Add engine application. It can currently list engines by name and
3700 identity, and test if they are actually available.
3703 *) Improve RPM specification file by forcing symbolic linking and making
3704 sure the installed documentation is also owned by root.root.
3705 [Damien Miller <djm@mindrot.org>]
3707 *) Give the OpenSSL applications more possibilities to make use of
3708 keys (public as well as private) handled by engines.
3711 *) Add OCSP code that comes from CertCo.
3714 *) Add VMS support for the Rijndael code.
3717 *) Added untested support for Nuron crypto accelerator.
3720 *) Add support for external cryptographic devices. This code was
3721 previously distributed separately as the "engine" branch.
3722 [Geoff Thorpe, Richard Levitte]
3724 *) Rework the filename-translation in the DSO code. It is now possible to
3725 have far greater control over how a "name" is turned into a filename
3726 depending on the operating environment and any oddities about the
3727 different shared library filenames on each system.
3730 *) Support threads on FreeBSD-elf in Configure.
3733 *) Fix for SHA1 assembly problem with MASM: it produces
3734 warnings about corrupt line number information when assembling
3735 with debugging information. This is caused by the overlapping
3737 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
3740 NCONF_get_number() has no error checking at all. As a replacement,
3741 NCONF_get_number_e() is defined (_e for "error checking") and is
3742 promoted strongly. The old NCONF_get_number is kept around for
3743 binary backward compatibility.
3744 Make it possible for methods to load from something other than a BIO,
3745 by providing a function pointer that is given a name instead of a BIO.
3746 For example, this could be used to load configuration data from an
3750 *) Fix for non blocking accept BIOs. Added new I/O special reason
3751 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
3752 with non blocking I/O was not possible because no retry code was
3753 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
3757 *) Added the beginnings of Rijndael support.
3760 *) Fix for bug in DirectoryString mask setting. Add support for
3761 X509_NAME_print_ex() in 'req' and X509_print_ex() function
3762 to allow certificate printing to more controllable, additional
3763 'certopt' option to 'x509' to allow new printing options to be
3767 *) Clean old EAY MD5 hack from e_os.h.
3770 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
3772 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3773 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3774 [Joe Orton, Steve Henson]
3776 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
3778 *) Fix additional bug revealed by the NISCC test suite:
3780 Stop bug triggering large recursion when presented with
3781 certain ASN.1 tags (CVE-2003-0851)
3784 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
3786 *) Fix various bugs revealed by running the NISCC test suite:
3788 Stop out of bounds reads in the ASN1 code when presented with
3789 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3791 If verify callback ignores invalid public key errors don't try to check
3792 certificate signature with the NULL public key.
3796 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3797 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3801 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3802 extra data after the compression methods not only for TLS 1.0
3803 but also for SSL 3.0 (as required by the specification).
3804 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3806 *) Change X509_certificate_type() to mark the key as exported/exportable
3807 when it's 512 *bits* long, not 512 bytes.
3810 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
3812 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3813 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3814 a protocol version number mismatch like a decryption error
3815 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3818 *) Turn on RSA blinding by default in the default implementation
3819 to avoid a timing attack. Applications that don't want it can call
3820 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3821 They would be ill-advised to do so in most cases.
3822 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3824 *) Change RSA blinding code so that it works when the PRNG is not
3825 seeded (in this case, the secret RSA exponent is abused as
3826 an unpredictable seed -- if it is not unpredictable, there
3827 is no point in blinding anyway). Make RSA blinding thread-safe
3828 by remembering the creator's thread ID in rsa->blinding and
3829 having all other threads use local one-time blinding factors
3830 (this requires more computation than sharing rsa->blinding, but
3831 avoids excessive locking; and if an RSA object is not shared
3832 between threads, blinding will still be very fast).
3835 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
3837 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3838 via timing by performing a MAC computation even if incorrrect
3839 block cipher padding has been found. This is a countermeasure
3840 against active attacks where the attacker has to distinguish
3841 between bad padding and a MAC verification error. (CVE-2003-0078)
3843 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3844 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3845 Martin Vuagnoux (EPFL, Ilion)]
3847 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
3849 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
3850 memory from it's contents. This is done with a counter that will
3851 place alternating values in each byte. This can be used to solve
3852 two issues: 1) the removal of calls to memset() by highly optimizing
3853 compilers, and 2) cleansing with other values than 0, since those can
3854 be read through on certain media, for example a swap space on disk.
3857 *) Bugfix: client side session caching did not work with external caching,
3858 because the session->cipher setting was not restored when reloading
3859 from the external cache. This problem was masked, when
3860 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
3861 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
3864 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
3865 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
3866 [Zeev Lieber <zeev-l@yahoo.com>]
3868 *) Undo an undocumented change introduced in 0.9.6e which caused
3869 repeated calls to OpenSSL_add_all_ciphers() and
3870 OpenSSL_add_all_digests() to be ignored, even after calling
3874 *) Change the default configuration reader to deal with last line not
3875 being properly terminated.
3878 *) Change X509_NAME_cmp() so it applies the special rules on handling
3879 DN values that are of type PrintableString, as well as RDNs of type
3880 emailAddress where the value has the type ia5String.
3881 [stefank@valicert.com via Richard Levitte]
3883 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
3884 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
3885 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
3886 the bitwise-OR of the two for use by the majority of applications
3887 wanting this behaviour, and update the docs. The documented
3888 behaviour and actual behaviour were inconsistent and had been
3889 changing anyway, so this is more a bug-fix than a behavioural
3891 [Geoff Thorpe, diagnosed by Nadav Har'El]
3893 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
3894 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
3897 *) Fix initialization code race conditions in
3898 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
3899 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
3900 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
3901 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
3902 ssl2_get_cipher_by_char(),
3903 ssl3_get_cipher_by_char().
3904 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
3906 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
3907 the cached sessions are flushed, as the remove_cb() might use ex_data
3908 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
3909 (see [openssl.org #212]).
3910 [Geoff Thorpe, Lutz Jaenicke]
3912 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
3913 length, instead of the encoding length to d2i_ASN1_OBJECT.
3916 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
3918 *) [In 0.9.6g-engine release:]
3919 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
3920 [Lynn Gazis <lgazis@rainbow.com>]
3922 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
3924 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
3925 and get fix the header length calculation.
3926 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
3927 Alon Kantor <alonk@checkpoint.com> (and others),
3930 *) Use proper error handling instead of 'assertions' in buffer
3931 overflow checks added in 0.9.6e. This prevents DoS (the
3932 assertions could call abort()).
3933 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
3935 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
3937 *) Add various sanity checks to asn1_get_length() to reject
3938 the ASN1 length bytes if they exceed sizeof(long), will appear
3939 negative or the content length exceeds the length of the
3941 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3943 *) Fix cipher selection routines: ciphers without encryption had no flags
3944 for the cipher strength set and where therefore not handled correctly
3945 by the selection routines (PR #130).
3948 *) Fix EVP_dsa_sha macro.
3952 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
3953 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
3954 that was added in OpenSSL 0.9.6d.
3956 As the countermeasure turned out to be incompatible with some
3957 broken SSL implementations, the new option is part of SSL_OP_ALL.
3958 SSL_OP_ALL is usually employed when compatibility with weird SSL
3959 implementations is desired (e.g. '-bugs' option to 's_client' and
3960 's_server'), so the new option is automatically set in many
3964 *) Changes in security patch:
3966 Changes marked "(CHATS)" were sponsored by the Defense Advanced
3967 Research Projects Agency (DARPA) and Air Force Research Laboratory,
3968 Air Force Materiel Command, USAF, under agreement number
3971 *) Add various sanity checks to asn1_get_length() to reject
3972 the ASN1 length bytes if they exceed sizeof(long), will appear
3973 negative or the content length exceeds the length of the
3974 supplied buffer. (CVE-2002-0659)
3975 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3977 *) Assertions for various potential buffer overflows, not known to
3979 [Ben Laurie (CHATS)]
3981 *) Various temporary buffers to hold ASCII versions of integers were
3982 too small for 64 bit platforms. (CVE-2002-0655)
3983 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
3985 *) Remote buffer overflow in SSL3 protocol - an attacker could
3986 supply an oversized session ID to a client. (CVE-2002-0656)
3987 [Ben Laurie (CHATS)]
3989 *) Remote buffer overflow in SSL2 protocol - an attacker could
3990 supply an oversized client master key. (CVE-2002-0656)
3991 [Ben Laurie (CHATS)]
3993 Changes between 0.9.6c and 0.9.6d [9 May 2002]
3995 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
3996 encoded as NULL) with id-dsa-with-sha1.
3997 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
3999 *) Check various X509_...() return values in apps/req.c.
4000 [Nils Larsch <nla@trustcenter.de>]
4002 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
4003 an end-of-file condition would erronously be flagged, when the CRLF
4004 was just at the end of a processed block. The bug was discovered when
4005 processing data through a buffering memory BIO handing the data to a
4006 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
4007 <ptsekov@syntrex.com> and Nedelcho Stanev.
4010 *) Implement a countermeasure against a vulnerability recently found
4011 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
4012 before application data chunks to avoid the use of known IVs
4013 with data potentially chosen by the attacker.
4016 *) Fix length checks in ssl3_get_client_hello().
4019 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
4020 to prevent ssl3_read_internal() from incorrectly assuming that
4021 ssl3_read_bytes() found application data while handshake
4022 processing was enabled when in fact s->s3->in_read_app_data was
4023 merely automatically cleared during the initial handshake.
4024 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
4026 *) Fix object definitions for Private and Enterprise: they were not
4027 recognized in their shortname (=lowercase) representation. Extend
4028 obj_dat.pl to issue an error when using undefined keywords instead
4029 of silently ignoring the problem (Svenning Sorensen
4030 <sss@sss.dnsalias.net>).
4033 *) Fix DH_generate_parameters() so that it works for 'non-standard'
4034 generators, i.e. generators other than 2 and 5. (Previously, the
4035 code did not properly initialise the 'add' and 'rem' values to
4036 BN_generate_prime().)
4038 In the new general case, we do not insist that 'generator' is
4039 actually a primitive root: This requirement is rather pointless;
4040 a generator of the order-q subgroup is just as good, if not
4044 *) Map new X509 verification errors to alerts. Discovered and submitted by
4045 Tom Wu <tom@arcot.com>.
4048 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
4049 returning non-zero before the data has been completely received
4050 when using non-blocking I/O.
4051 [Bodo Moeller; problem pointed out by John Hughes]
4053 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
4054 [Ben Laurie, Lutz Jaenicke]
4056 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
4057 Yoram Zahavi <YoramZ@gilian.com>).
4060 *) Add information about CygWin 1.3 and on, and preserve proper
4061 configuration for the versions before that.
4062 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
4064 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
4065 check whether we deal with a copy of a session and do not delete from
4066 the cache in this case. Problem reported by "Izhar Shoshani Levi"
4067 <izhar@checkpoint.com>.
4070 *) Do not store session data into the internal session cache, if it
4071 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
4072 flag is set). Proposed by Aslam <aslam@funk.com>.
4075 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
4079 *) [In 0.9.6d-engine release:]
4080 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4081 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4083 *) Add the configuration target linux-s390x.
4084 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
4086 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
4087 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
4088 variable as an indication that a ClientHello message has been
4089 received. As the flag value will be lost between multiple
4090 invocations of ssl3_accept when using non-blocking I/O, the
4091 function may not be aware that a handshake has actually taken
4092 place, thus preventing a new session from being added to the
4095 To avoid this problem, we now set s->new_session to 2 instead of
4096 using a local variable.
4097 [Lutz Jaenicke, Bodo Moeller]
4099 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
4100 if the SSL_R_LENGTH_MISMATCH error is detected.
4101 [Geoff Thorpe, Bodo Moeller]
4103 *) New 'shared_ldflag' column in Configure platform table.
4106 *) Fix EVP_CIPHER_mode macro.
4107 ["Dan S. Camper" <dan@bti.net>]
4109 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
4110 type, we must throw them away by setting rr->length to 0.
4111 [D P Chang <dpc@qualys.com>]
4113 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
4115 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
4116 <Dominikus.Scherkl@biodata.com>. (The previous implementation
4117 worked incorrectly for those cases where range = 10..._2 and
4118 3*range is two bits longer than range.)
4121 *) Only add signing time to PKCS7 structures if it is not already
4125 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
4126 OBJ_ld_ce should be OBJ_id_ce.
4127 Also some ip-pda OIDs in crypto/objects/objects.txt were
4128 incorrect (cf. RFC 3039).
4129 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
4131 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
4132 returns early because it has nothing to do.
4133 [Andy Schneider <andy.schneider@bjss.co.uk>]
4135 *) [In 0.9.6c-engine release:]
4136 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
4137 [Andy Schneider <andy.schneider@bjss.co.uk>]
4139 *) [In 0.9.6c-engine release:]
4140 Add support for Cryptographic Appliance's keyserver technology.
4141 (Use engine 'keyclient')
4142 [Cryptographic Appliances and Geoff Thorpe]
4144 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
4145 is called via tools/c89.sh because arguments have to be
4146 rearranged (all '-L' options must appear before the first object
4148 [Richard Shapiro <rshapiro@abinitio.com>]
4150 *) [In 0.9.6c-engine release:]
4151 Add support for Broadcom crypto accelerator cards, backported
4153 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
4155 *) [In 0.9.6c-engine release:]
4156 Add support for SureWare crypto accelerator cards from
4157 Baltimore Technologies. (Use engine 'sureware')
4158 [Baltimore Technologies and Mark Cox]
4160 *) [In 0.9.6c-engine release:]
4161 Add support for crypto accelerator cards from Accelerated
4162 Encryption Processing, www.aep.ie. (Use engine 'aep')
4163 [AEP Inc. and Mark Cox]
4165 *) Add a configuration entry for gcc on UnixWare.
4166 [Gary Benson <gbenson@redhat.com>]
4168 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
4169 messages are stored in a single piece (fixed-length part and
4170 variable-length part combined) and fix various bugs found on the way.
4173 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
4174 instead. BIO_gethostbyname() does not know what timeouts are
4175 appropriate, so entries would stay in cache even when they have
4177 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
4179 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
4180 faced with a pathologically small ClientHello fragment that does
4181 not contain client_version: Instead of aborting with an error,
4182 simply choose the highest available protocol version (i.e.,
4183 TLS 1.0 unless it is disabled). In practice, ClientHello
4184 messages are never sent like this, but this change gives us
4185 strictly correct behaviour at least for TLS.
4188 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
4189 never resets s->method to s->ctx->method when called from within
4190 one of the SSL handshake functions.
4191 [Bodo Moeller; problem pointed out by Niko Baric]
4193 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
4194 (sent using the client's version number) if client_version is
4195 smaller than the protocol version in use. Also change
4196 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
4197 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
4198 the client will at least see that alert.
4201 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
4205 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
4206 client receives HelloRequest while in a handshake.
4207 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
4209 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
4210 should end in 'break', not 'goto end' which circuments various
4211 cleanups done in state SSL_ST_OK. But session related stuff
4212 must be disabled for SSL_ST_OK in the case that we just sent a
4215 Also avoid some overhead by not calling ssl_init_wbio_buffer()
4216 before just sending a HelloRequest.
4217 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
4219 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
4220 reveal whether illegal block cipher padding was found or a MAC
4221 verification error occured. (Neither SSLerr() codes nor alerts
4222 are directly visible to potential attackers, but the information
4223 may leak via logfiles.)
4225 Similar changes are not required for the SSL 2.0 implementation
4226 because the number of padding bytes is sent in clear for SSL 2.0,
4227 and the extra bytes are just ignored. However ssl/s2_pkt.c
4228 failed to verify that the purported number of padding bytes is in
4232 *) Add OpenUNIX-8 support including shared libraries
4233 (Boyd Lynn Gerber <gerberb@zenez.com>).
4236 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
4237 'wristwatch attack' using huge encoding parameters (cf.
4238 James H. Manger's CRYPTO 2001 paper). Note that the
4239 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
4240 encoding parameters and hence was not vulnerable.
4243 *) BN_sqr() bug fix.
4244 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
4246 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
4247 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
4248 followed by modular reduction.
4249 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
4251 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
4252 equivalent based on BN_pseudo_rand() instead of BN_rand().
4255 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
4256 This function was broken, as the check for a new client hello message
4257 to handle SGC did not allow these large messages.
4258 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
4261 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
4264 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
4265 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
4268 *) Rework the configuration and shared library support for Tru64 Unix.
4269 The configuration part makes use of modern compiler features and
4270 still retains old compiler behavior for those that run older versions
4271 of the OS. The shared library support part includes a variant that
4272 uses the RPATH feature, and is available through the special
4273 configuration target "alpha-cc-rpath", which will never be selected
4275 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
4277 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
4278 with the same message size as in ssl3_get_certificate_request().
4279 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
4280 messages might inadvertently be reject as too long.
4281 [Petr Lampa <lampa@fee.vutbr.cz>]
4283 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
4286 *) Modified SSL library such that the verify_callback that has been set
4287 specificly for an SSL object with SSL_set_verify() is actually being
4288 used. Before the change, a verify_callback set with this function was
4289 ignored and the verify_callback() set in the SSL_CTX at the time of
4290 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
4291 to allow the necessary settings.
4294 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
4295 explicitly to NULL, as at least on Solaris 8 this seems not always to be
4296 done automatically (in contradiction to the requirements of the C
4297 standard). This made problems when used from OpenSSH.
4300 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
4301 dh->length and always used
4303 BN_rand_range(priv_key, dh->p).
4305 BN_rand_range() is not necessary for Diffie-Hellman, and this
4306 specific range makes Diffie-Hellman unnecessarily inefficient if
4307 dh->length (recommended exponent length) is much smaller than the
4308 length of dh->p. We could use BN_rand_range() if the order of
4309 the subgroup was stored in the DH structure, but we only have
4314 BN_rand(priv_key, l, ...)
4316 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
4322 RSA_eay_public_encrypt
4323 RSA_eay_private_decrypt
4324 RSA_eay_private_encrypt (signing)
4325 RSA_eay_public_decrypt (signature verification)
4327 (default implementations for RSA_public_encrypt,
4328 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
4329 always reject numbers >= n.
4332 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
4333 to synchronize access to 'locking_thread'. This is necessary on
4334 systems where access to 'locking_thread' (an 'unsigned long'
4335 variable) is not atomic.
4338 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
4339 *before* setting the 'crypto_lock_rand' flag. The previous code had
4340 a race condition if 0 is a valid thread ID.
4341 [Travis Vitek <vitek@roguewave.com>]
4343 *) Add support for shared libraries under Irix.
4344 [Albert Chin-A-Young <china@thewrittenword.com>]
4346 *) Add configuration option to build on Linux on both big-endian and
4348 [Ralf Baechle <ralf@uni-koblenz.de>]
4350 *) Add the possibility to create shared libraries on HP-UX.
4353 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
4355 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
4356 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
4357 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
4358 PRNG state recovery was possible based on the output of
4359 one PRNG request appropriately sized to gain knowledge on
4360 'md' followed by enough consecutive 1-byte PRNG requests
4361 to traverse all of 'state'.
4363 1. When updating 'md_local' (the current thread's copy of 'md')
4364 during PRNG output generation, hash all of the previous
4365 'md_local' value, not just the half used for PRNG output.
4367 2. Make the number of bytes from 'state' included into the hash
4368 independent from the number of PRNG bytes requested.
4370 The first measure alone would be sufficient to avoid
4371 Markku-Juhani's attack. (Actually it had never occurred
4372 to me that the half of 'md_local' used for chaining was the
4373 half from which PRNG output bytes were taken -- I had always
4374 assumed that the secret half would be used.) The second
4375 measure makes sure that additional data from 'state' is never
4376 mixed into 'md_local' in small portions; this heuristically
4377 further strengthens the PRNG.
4380 *) Fix crypto/bn/asm/mips3.s.
4383 *) When only the key is given to "enc", the IV is undefined. Print out
4384 an error message in this case.
4387 *) Handle special case when X509_NAME is empty in X509 printing routines.
4390 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
4391 positive and less than q.
4394 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
4395 used: it isn't thread safe and the add_lock_callback should handle
4397 [Paul Rose <Paul.Rose@bridge.com>]
4399 *) Verify that incoming data obeys the block size in
4400 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
4404 [Ulf Möller, Bodo Möller]
4406 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
4407 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
4408 when fixing the server behaviour for backwards-compatible 'client
4409 hello' messages. (Note that the attack is impractical against
4410 SSL 3.0 and TLS 1.0 anyway because length and version checking
4411 means that the probability of guessing a valid ciphertext is
4412 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
4415 Before 0.9.5, the countermeasure (hide the error by generating a
4416 random 'decryption result') did not work properly because
4417 ERR_clear_error() was missing, meaning that SSL_get_error() would
4418 detect the supposedly ignored error.
4420 Both problems are now fixed.
4423 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
4424 (previously it was 1024).
4427 *) Fix for compatibility mode trust settings: ignore trust settings
4428 unless some valid trust or reject settings are present.
4431 *) Fix for blowfish EVP: its a variable length cipher.
4434 *) Fix various bugs related to DSA S/MIME verification. Handle missing
4435 parameters in DSA public key structures and return an error in the
4436 DSA routines if parameters are absent.
4439 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
4440 in the current directory if neither $RANDFILE nor $HOME was set.
4441 RAND_file_name() in 0.9.6a returned NULL in this case. This has
4442 caused some confusion to Windows users who haven't defined $HOME.
4443 Thus RAND_file_name() is changed again: e_os.h can define a
4444 DEFAULT_HOME, which will be used if $HOME is not set.
4445 For Windows, we use "C:"; on other platforms, we still require
4446 environment variables.
4448 *) Move 'if (!initialized) RAND_poll()' into regions protected by
4449 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
4450 having multiple threads call RAND_poll() concurrently.
4453 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
4454 combination of a flag and a thread ID variable.
4455 Otherwise while one thread is in ssleay_rand_bytes (which sets the
4456 flag), *other* threads can enter ssleay_add_bytes without obeying
4457 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
4458 that they do not hold after the first thread unsets add_do_not_lock).
4461 *) Change bctest again: '-x' expressions are not available in all
4465 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
4467 *) Fix a couple of memory leaks in PKCS7_dataDecode()
4468 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
4470 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
4471 the default extension for executables, if any. Also, make the perl
4472 scripts that use symlink() to test if it really exists and use "cp"
4473 if it doesn't. All this made OpenSSL compilable and installable in
4477 *) Fix for asn1_GetSequence() for indefinite length constructed data.
4478 If SEQUENCE is length is indefinite just set c->slen to the total
4479 amount of data available.
4480 [Steve Henson, reported by shige@FreeBSD.org]
4481 [This change does not apply to 0.9.7.]
4483 *) Change bctest to avoid here-documents inside command substitution
4484 (workaround for FreeBSD /bin/sh bug).
4485 For compatibility with Ultrix, avoid shell functions (introduced
4486 in the bctest version that searches along $PATH).
4489 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
4490 with des_encrypt() defined on some operating systems, like Solaris
4494 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
4495 On the Importance of Eliminating Errors in Cryptographic
4496 Computations, J. Cryptology 14 (2001) 2, 101-119,
4497 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
4500 *) MIPS assembler BIGNUM division bug fix.
4503 *) Disabled incorrect Alpha assembler code.
4506 *) Fix PKCS#7 decode routines so they correctly update the length
4507 after reading an EOC for the EXPLICIT tag.
4509 [This change does not apply to 0.9.7.]
4511 *) Fix bug in PKCS#12 key generation routines. This was triggered
4512 if a 3DES key was generated with a 0 initial byte. Include
4513 PKCS12_BROKEN_KEYGEN compilation option to retain the old
4514 (but broken) behaviour.
4517 *) Enhance bctest to search for a working bc along $PATH and print
4519 [Tim Rice <tim@multitalents.net> via Richard Levitte]
4521 *) Fix memory leaks in err.c: free err_data string if necessary;
4522 don't write to the wrong index in ERR_set_error_data.
4525 *) Implement ssl23_peek (analogous to ssl23_read), which previously
4529 *) Replace rdtsc with _emit statements for VC++ version 5.
4530 [Jeremy Cooper <jeremy@baymoo.org>]
4532 *) Make it possible to reuse SSLv2 sessions.
4535 *) In copy_email() check for >= 0 as a return value for
4536 X509_NAME_get_index_by_NID() since 0 is a valid index.
4537 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
4539 *) Avoid coredump with unsupported or invalid public keys by checking if
4540 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
4541 PKCS7_verify() fails with non detached data.
4544 *) Don't use getenv in library functions when run as setuid/setgid.
4545 New function OPENSSL_issetugid().
4548 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
4549 due to incorrect handling of multi-threading:
4551 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
4553 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
4555 3. Count how many times MemCheck_off() has been called so that
4556 nested use can be treated correctly. This also avoids
4557 inband-signalling in the previous code (which relied on the
4558 assumption that thread ID 0 is impossible).
4561 *) Add "-rand" option also to s_client and s_server.
4564 *) Fix CPU detection on Irix 6.x.
4565 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
4566 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4568 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
4571 [This change does not apply to 0.9.7.]
4573 *) Use the cached encoding of an X509_NAME structure rather than
4574 copying it. This is apparently the reason for the libsafe "errors"
4575 but the code is actually correct.
4578 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
4579 Bleichenbacher's DSA attack.
4580 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
4581 to be set and top=0 forces the highest bit to be set; top=-1 is new
4582 and leaves the highest bit random.
4583 [Ulf Moeller, Bodo Moeller]
4585 *) In the NCONF_...-based implementations for CONF_... queries
4586 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
4587 a temporary CONF structure with the data component set to NULL
4588 (which gives segmentation faults in lh_retrieve).
4589 Instead, use NULL for the CONF pointer in CONF_get_string and
4590 CONF_get_number (which may use environment variables) and directly
4591 return NULL from CONF_get_section.
4594 *) Fix potential buffer overrun for EBCDIC.
4597 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
4598 keyUsage if basicConstraints absent for a CA.
4601 *) Make SMIME_write_PKCS7() write mail header values with a format that
4602 is more generally accepted (no spaces before the semicolon), since
4603 some programs can't parse those values properly otherwise. Also make
4604 sure BIO's that break lines after each write do not create invalid
4608 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
4609 macros previously used would not encode an empty SEQUENCE OF
4610 and break the signature.
4612 [This change does not apply to 0.9.7.]
4614 *) Zero the premaster secret after deriving the master secret in
4618 *) Add some EVP_add_digest_alias registrations (as found in
4619 OpenSSL_add_all_digests()) to SSL_library_init()
4620 aka OpenSSL_add_ssl_algorithms(). This provides improved
4621 compatibility with peers using X.509 certificates
4622 with unconventional AlgorithmIdentifier OIDs.
4625 *) Fix for Irix with NO_ASM.
4626 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4628 *) ./config script fixes.
4629 [Ulf Moeller, Richard Levitte]
4631 *) Fix 'openssl passwd -1'.
4634 *) Change PKCS12_key_gen_asc() so it can cope with non null
4635 terminated strings whose length is passed in the passlen
4636 parameter, for example from PEM callbacks. This was done
4637 by adding an extra length parameter to asc2uni().
4638 [Steve Henson, reported by <oddissey@samsung.co.kr>]
4640 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
4641 call failed, free the DSA structure.
4644 *) Fix to uni2asc() to cope with zero length Unicode strings.
4645 These are present in some PKCS#12 files.
4648 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
4649 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
4650 when writing a 32767 byte record.
4651 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
4653 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
4654 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
4656 (RSA objects have a reference count access to which is protected
4657 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
4658 so they are meant to be shared between threads.)
4659 [Bodo Moeller, Geoff Thorpe; original patch submitted by
4660 "Reddie, Steven" <Steven.Reddie@ca.com>]
4662 *) Fix a deadlock in CRYPTO_mem_leaks().
4665 *) Use better test patterns in bntest.
4668 *) rand_win.c fix for Borland C.
4671 *) BN_rshift bugfix for n == 0.
4674 *) Add a 'bctest' script that checks for some known 'bc' bugs
4675 so that 'make test' does not abort just because 'bc' is broken.
4678 *) Store verify_result within SSL_SESSION also for client side to
4679 avoid potential security hole. (Re-used sessions on the client side
4680 always resulted in verify_result==X509_V_OK, not using the original
4681 result of the server certificate verification.)
4684 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
4685 SSL3_RT_APPLICATION_DATA, return 0.
4686 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
4690 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
4691 releases, have been re-implemented by renaming the previous
4692 implementations of ssl2_read and ssl3_read to ssl2_read_internal
4693 and ssl3_read_internal, respectively, and adding 'peek' parameters
4694 to them. The new ssl[23]_{read,peek} functions are calls to
4695 ssl[23]_read_internal with the 'peek' flag set appropriately.
4696 A 'peek' parameter has also been added to ssl3_read_bytes, which
4697 does the actual work for ssl3_read_internal.
4700 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
4701 the method-specific "init()" handler. Also clean up ex_data after
4702 calling the method-specific "finish()" handler. Previously, this was
4703 happening the other way round.
4706 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
4707 The previous value, 12, was not always sufficient for BN_mod_exp().
4710 *) Make sure that shared libraries get the internal name engine with
4711 the full version number and not just 0. This should mark the
4712 shared libraries as not backward compatible. Of course, this should
4713 be changed again when we can guarantee backward binary compatibility.
4716 *) Fix typo in get_cert_by_subject() in by_dir.c
4717 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
4719 *) Rework the system to generate shared libraries:
4721 - Make note of the expected extension for the shared libraries and
4722 if there is a need for symbolic links from for example libcrypto.so.0
4723 to libcrypto.so.0.9.7. There is extended info in Configure for
4726 - Make as few rebuilds of the shared libraries as possible.
4728 - Still avoid linking the OpenSSL programs with the shared libraries.
4730 - When installing, install the shared libraries separately from the
4734 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
4736 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
4737 and not in SSL_clear because the latter is also used by the
4738 accept/connect functions; previously, the settings made by
4739 SSL_set_read_ahead would be lost during the handshake.
4740 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
4742 *) Correct util/mkdef.pl to be selective about disabled algorithms.
4743 Previously, it would create entries for disableed algorithms no
4747 *) Added several new manual pages for SSL_* function.
4750 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
4752 *) In ssl23_get_client_hello, generate an error message when faced
4753 with an initial SSL 3.0/TLS record that is too small to contain the
4754 first two bytes of the ClientHello message, i.e. client_version.
4755 (Note that this is a pathologic case that probably has never happened
4756 in real life.) The previous approach was to use the version number
4757 from the record header as a substitute; but our protocol choice
4758 should not depend on that one because it is not authenticated
4759 by the Finished messages.
4762 *) More robust randomness gathering functions for Windows.
4763 [Jeffrey Altman <jaltman@columbia.edu>]
4765 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
4766 not set then we don't setup the error code for issuer check errors
4767 to avoid possibly overwriting other errors which the callback does
4768 handle. If an application does set the flag then we assume it knows
4769 what it is doing and can handle the new informational codes
4773 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
4774 a general "ANY" type, as such it should be able to decode anything
4775 including tagged types. However it didn't check the class so it would
4776 wrongly interpret tagged types in the same way as their universal
4777 counterpart and unknown types were just rejected. Changed so that the
4778 tagged and unknown types are handled in the same way as a SEQUENCE:
4779 that is the encoding is stored intact. There is also a new type
4780 "V_ASN1_OTHER" which is used when the class is not universal, in this
4781 case we have no idea what the actual type is so we just lump them all
4785 *) On VMS, stdout may very well lead to a file that is written to
4786 in a record-oriented fashion. That means that every write() will
4787 write a separate record, which will be read separately by the
4788 programs trying to read from it. This can be very confusing.
4790 The solution is to put a BIO filter in the way that will buffer
4791 text until a linefeed is reached, and then write everything a
4792 line at a time, so every record written will be an actual line,
4793 not chunks of lines and not (usually doesn't happen, but I've
4794 seen it once) several lines in one record. BIO_f_linebuffer() is
4797 Currently, it's a VMS-only method, because that's where it has
4798 been tested well enough.
4801 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
4802 it can return incorrect results.
4803 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
4804 but it was in 0.9.6-beta[12].)
4807 *) Disable the check for content being present when verifying detached
4808 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
4809 include zero length content when signing messages.
4812 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
4813 BIO_ctrl (for BIO pairs).
4816 *) Add DSO method for VMS.
4819 *) Bug fix: Montgomery multiplication could produce results with the
4823 *) Add RPM specification openssl.spec and modify it to build three
4824 packages. The default package contains applications, application
4825 documentation and run-time libraries. The devel package contains
4826 include files, static libraries and function documentation. The
4827 doc package contains the contents of the doc directory. The original
4828 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
4831 *) Add a large number of documentation files for many SSL routines.
4832 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
4834 *) Add a configuration entry for Sony News 4.
4835 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
4837 *) Don't set the two most significant bits to one when generating a
4838 random number < q in the DSA library.
4841 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
4842 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
4843 the underlying transport is blocking) if a handshake took place.
4844 (The default behaviour is needed by applications such as s_client
4845 and s_server that use select() to determine when to use SSL_read;
4846 but for applications that know in advance when to expect data, it
4847 just makes things more complicated.)
4850 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
4854 *) Add a few more EBCDIC conditionals that make `req' and `x509'
4855 work better on such systems.
4856 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
4858 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
4859 Update PKCS12_parse() so it copies the friendlyName and the
4860 keyid to the certificates aux info.
4863 *) Fix bug in PKCS7_verify() which caused an infinite loop
4864 if there was more than one signature.
4865 [Sven Uszpelkat <su@celocom.de>]
4867 *) Major change in util/mkdef.pl to include extra information
4868 about each symbol, as well as presentig variables as well
4869 as functions. This change means that there's n more need
4870 to rebuild the .num files when some algorithms are excluded.
4873 *) Allow the verify time to be set by an application,
4874 rather than always using the current time.
4877 *) Phase 2 verify code reorganisation. The certificate
4878 verify code now looks up an issuer certificate by a
4879 number of criteria: subject name, authority key id
4880 and key usage. It also verifies self signed certificates
4881 by the same criteria. The main comparison function is
4882 X509_check_issued() which performs these checks.
4884 Lot of changes were necessary in order to support this
4885 without completely rewriting the lookup code.
4887 Authority and subject key identifier are now cached.
4889 The LHASH 'certs' is X509_STORE has now been replaced
4890 by a STACK_OF(X509_OBJECT). This is mainly because an
4891 LHASH can't store or retrieve multiple objects with
4892 the same hash value.
4894 As a result various functions (which were all internal
4895 use only) have changed to handle the new X509_STORE
4896 structure. This will break anything that messed round
4897 with X509_STORE internally.
4899 The functions X509_STORE_add_cert() now checks for an
4900 exact match, rather than just subject name.
4902 The X509_STORE API doesn't directly support the retrieval
4903 of multiple certificates matching a given criteria, however
4904 this can be worked round by performing a lookup first
4905 (which will fill the cache with candidate certificates)
4906 and then examining the cache for matches. This is probably
4907 the best we can do without throwing out X509_LOOKUP
4908 entirely (maybe later...).
4910 The X509_VERIFY_CTX structure has been enhanced considerably.
4912 All certificate lookup operations now go via a get_issuer()
4913 callback. Although this currently uses an X509_STORE it
4914 can be replaced by custom lookups. This is a simple way
4915 to bypass the X509_STORE hackery necessary to make this
4916 work and makes it possible to use more efficient techniques
4917 in future. A very simple version which uses a simple
4918 STACK for its trusted certificate store is also provided
4919 using X509_STORE_CTX_trusted_stack().
4921 The verify_cb() and verify() callbacks now have equivalents
4922 in the X509_STORE_CTX structure.
4924 X509_STORE_CTX also has a 'flags' field which can be used
4925 to customise the verify behaviour.
4928 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
4929 excludes S/MIME capabilities.
4932 *) When a certificate request is read in keep a copy of the
4933 original encoding of the signed data and use it when outputing
4934 again. Signatures then use the original encoding rather than
4935 a decoded, encoded version which may cause problems if the
4936 request is improperly encoded.
4939 *) For consistency with other BIO_puts implementations, call
4940 buffer_write(b, ...) directly in buffer_puts instead of calling
4943 In BIO_puts, increment b->num_write as in BIO_write.
4944 [Peter.Sylvester@EdelWeb.fr]
4946 *) Fix BN_mul_word for the case where the word is 0. (We have to use
4947 BN_zero, we may not return a BIGNUM with an array consisting of
4951 *) Avoid calling abort() from within the library when problems are
4952 detected, except if preprocessor symbols have been defined
4953 (such as REF_CHECK, BN_DEBUG etc.).
4956 *) New openssl application 'rsautl'. This utility can be
4957 used for low level RSA operations. DER public key
4958 BIO/fp routines also added.
4961 *) New Configure entry and patches for compiling on QNX 4.
4962 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
4964 *) A demo state-machine implementation was sponsored by
4965 Nuron (http://www.nuron.com/) and is now available in
4966 demos/state_machine.
4969 *) New options added to the 'dgst' utility for signature
4970 generation and verification.
4973 *) Unrecognized PKCS#7 content types are now handled via a
4974 catch all ASN1_TYPE structure. This allows unsupported
4975 types to be stored as a "blob" and an application can
4976 encode and decode it manually.
4979 *) Fix various signed/unsigned issues to make a_strex.c
4981 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
4983 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
4984 length if passed a buffer. ASN1_INTEGER_to_BN failed
4985 if passed a NULL BN and its argument was negative.
4986 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
4988 *) Modification to PKCS#7 encoding routines to output definite
4989 length encoding. Since currently the whole structures are in
4990 memory there's not real point in using indefinite length
4991 constructed encoding. However if OpenSSL is compiled with
4992 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
4995 *) Added BIO_vprintf() and BIO_vsnprintf().
4998 *) Added more prefixes to parse for in the the strings written
4999 through a logging bio, to cover all the levels that are available
5000 through syslog. The prefixes are now:
5002 PANIC, EMERG, EMR => LOG_EMERG
5003 ALERT, ALR => LOG_ALERT
5004 CRIT, CRI => LOG_CRIT
5005 ERROR, ERR => LOG_ERR
5006 WARNING, WARN, WAR => LOG_WARNING
5007 NOTICE, NOTE, NOT => LOG_NOTICE
5008 INFO, INF => LOG_INFO
5009 DEBUG, DBG => LOG_DEBUG
5011 and as before, if none of those prefixes are present at the
5012 beginning of the string, LOG_ERR is chosen.
5014 On Win32, the LOG_* levels are mapped according to this:
5016 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
5017 LOG_WARNING => EVENTLOG_WARNING_TYPE
5018 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
5022 *) Made it possible to reconfigure with just the configuration
5023 argument "reconf" or "reconfigure". The command line arguments
5024 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
5025 and are retrieved from there when reconfiguring.
5029 [Assar Westerlund <assar@sics.se>, Richard Levitte]
5031 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
5034 *) The obj_dat.pl script was messing up the sorting of object
5035 names. The reason was that it compared the quoted version
5036 of strings as a result "OCSP" > "OCSP Signing" because
5037 " > SPACE. Changed script to store unquoted versions of
5038 names and add quotes on output. It was also omitting some
5039 names from the lookup table if they were given a default
5040 value (that is if SN is missing it is given the same
5041 value as LN and vice versa), these are now added on the
5042 grounds that if an object has a name we should be able to
5043 look it up. Finally added warning output when duplicate
5044 short or long names are found.
5047 *) Changes needed for Tandem NSK.
5048 [Scott Uroff <scott@xypro.com>]
5050 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
5051 RSA_padding_check_SSLv23(), special padding was never detected
5052 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
5053 version rollback attacks was not effective.
5055 In s23_clnt.c, don't use special rollback-attack detection padding
5056 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
5057 client; similarly, in s23_srvr.c, don't do the rollback check if
5058 SSL 2.0 is the only protocol enabled in the server.
5061 *) Make it possible to get hexdumps of unprintable data with 'openssl
5062 asn1parse'. By implication, the functions ASN1_parse_dump() and
5063 BIO_dump_indent() are added.
5066 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
5067 these print out strings and name structures based on various
5068 flags including RFC2253 support and proper handling of
5069 multibyte characters. Added options to the 'x509' utility
5070 to allow the various flags to be set.
5073 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
5074 Also change the functions X509_cmp_current_time() and
5075 X509_gmtime_adj() work with an ASN1_TIME structure,
5076 this will enable certificates using GeneralizedTime in validity
5077 dates to be checked.
5080 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
5081 negative public key encodings) on by default,
5082 NO_NEG_PUBKEY_BUG can be set to disable it.
5085 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
5086 content octets. An i2c_ASN1_OBJECT is unnecessary because
5087 the encoding can be trivially obtained from the structure.
5090 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
5091 not read locks (CRYPTO_r_[un]lock).
5094 *) A first attempt at creating official support for shared
5095 libraries through configuration. I've kept it so the
5096 default is static libraries only, and the OpenSSL programs
5097 are always statically linked for now, but there are
5098 preparations for dynamic linking in place.
5099 This has been tested on Linux and Tru64.
5102 *) Randomness polling function for Win9x, as described in:
5103 Peter Gutmann, Software Generation of Practically Strong
5107 *) Fix so PRNG is seeded in req if using an already existing
5111 *) New options to smime application. -inform and -outform
5112 allow alternative formats for the S/MIME message including
5113 PEM and DER. The -content option allows the content to be
5114 specified separately. This should allow things like Netscape
5115 form signing output easier to verify.
5118 *) Fix the ASN1 encoding of tags using the 'long form'.
5121 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
5122 STRING types. These convert content octets to and from the
5123 underlying type. The actual tag and length octets are
5124 already assumed to have been read in and checked. These
5125 are needed because all other string types have virtually
5126 identical handling apart from the tag. By having versions
5127 of the ASN1 functions that just operate on content octets
5128 IMPLICIT tagging can be handled properly. It also allows
5129 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
5130 and ASN1_INTEGER are identical apart from the tag.
5133 *) Change the handling of OID objects as follows:
5135 - New object identifiers are inserted in objects.txt, following
5136 the syntax given in objects.README.
5137 - objects.pl is used to process obj_mac.num and create a new
5139 - obj_dat.pl is used to create a new obj_dat.h, using the data in
5142 This is currently kind of a hack, and the perl code in objects.pl
5143 isn't very elegant, but it works as I intended. The simplest way
5144 to check that it worked correctly is to look in obj_dat.h and
5145 check the array nid_objs and make sure the objects haven't moved
5146 around (this is important!). Additions are OK, as well as
5147 consistent name changes.
5150 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
5153 *) Addition of the command line parameter '-rand file' to 'openssl req'.
5154 The given file adds to whatever has already been seeded into the
5155 random pool through the RANDFILE configuration file option or
5156 environment variable, or the default random state file.
5159 *) mkstack.pl now sorts each macro group into lexical order.
5160 Previously the output order depended on the order the files
5161 appeared in the directory, resulting in needless rewriting
5165 *) Patches to make OpenSSL compile under Win32 again. Mostly
5166 work arounds for the VC++ problem that it treats func() as
5167 func(void). Also stripped out the parts of mkdef.pl that
5168 added extra typesafe functions: these no longer exist.
5171 *) Reorganisation of the stack code. The macros are now all
5172 collected in safestack.h . Each macro is defined in terms of
5173 a "stack macro" of the form SKM_<name>(type, a, b). The
5174 DEBUG_SAFESTACK is now handled in terms of function casts,
5175 this has the advantage of retaining type safety without the
5176 use of additional functions. If DEBUG_SAFESTACK is not defined
5177 then the non typesafe macros are used instead. Also modified the
5178 mkstack.pl script to handle the new form. Needs testing to see
5179 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
5180 the default if no major problems. Similar behaviour for ASN1_SET_OF
5181 and PKCS12_STACK_OF.
5184 *) When some versions of IIS use the 'NET' form of private key the
5185 key derivation algorithm is different. Normally MD5(password) is
5186 used as a 128 bit RC4 key. In the modified case
5187 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
5188 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
5189 as the old Netscape_RSA functions except they have an additional
5190 'sgckey' parameter which uses the modified algorithm. Also added
5191 an -sgckey command line option to the rsa utility. Thanks to
5192 Adrian Peck <bertie@ncipher.com> for posting details of the modified
5193 algorithm to openssl-dev.
5196 *) The evp_local.h macros were using 'c.##kname' which resulted in
5197 invalid expansion on some systems (SCO 5.0.5 for example).
5198 Corrected to 'c.kname'.
5199 [Phillip Porch <root@theporch.com>]
5201 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
5202 a STACK of email addresses from a certificate or request, these look
5203 in the subject name and the subject alternative name extensions and
5204 omit any duplicate addresses.
5207 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
5208 This makes DSA verification about 2 % faster.
5211 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
5212 (meaning that now 2^5 values will be precomputed, which is only 4 KB
5213 plus overhead for 1024 bit moduli).
5214 This makes exponentiations about 0.5 % faster for 1024 bit
5215 exponents (as measured by "openssl speed rsa2048").
5218 *) Rename memory handling macros to avoid conflicts with other
5220 Malloc => OPENSSL_malloc
5221 Malloc_locked => OPENSSL_malloc_locked
5222 Realloc => OPENSSL_realloc
5223 Free => OPENSSL_free
5226 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
5227 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
5230 *) CygWin32 support.
5231 [John Jarvie <jjarvie@newsguy.com>]
5233 *) The type-safe stack code has been rejigged. It is now only compiled
5234 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
5235 by default all type-specific stack functions are "#define"d back to
5236 standard stack functions. This results in more streamlined output
5237 but retains the type-safety checking possibilities of the original
5241 *) The STACK code has been cleaned up, and certain type declarations
5242 that didn't make a lot of sense have been brought in line. This has
5243 also involved a cleanup of sorts in safestack.h to more correctly
5244 map type-safe stack functions onto their plain stack counterparts.
5245 This work has also resulted in a variety of "const"ifications of
5246 lots of the code, especially "_cmp" operations which should normally
5247 be prototyped with "const" parameters anyway.
5250 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
5251 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
5252 (The PRNG state consists of two parts, the large pool 'state' and 'md',
5253 where all of 'md' is used each time the PRNG is used, but 'state'
5254 is used only indexed by a cyclic counter. As entropy may not be
5255 well distributed from the beginning, 'md' is important as a
5256 chaining variable. However, the output function chains only half
5257 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
5258 all of 'md', and seeding with STATE_SIZE dummy bytes will result
5259 in all of 'state' being rewritten, with the new values depending
5260 on virtually all of 'md'. This overcomes the 80 bit limitation.)
5263 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
5264 the handshake is continued after ssl_verify_cert_chain();
5265 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
5266 can lead to 'unexplainable' connection aborts later.
5267 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
5269 *) Major EVP API cipher revision.
5270 Add hooks for extra EVP features. This allows various cipher
5271 parameters to be set in the EVP interface. Support added for variable
5272 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
5273 setting of RC2 and RC5 parameters.
5275 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
5278 Remove lots of duplicated code from the EVP library. For example *every*
5279 cipher init() function handles the 'iv' in the same way according to the
5280 cipher mode. They also all do nothing if the 'key' parameter is NULL and
5281 for CFB and OFB modes they zero ctx->num.
5283 New functionality allows removal of S/MIME code RC2 hack.
5285 Most of the routines have the same form and so can be declared in terms
5288 By shifting this to the top level EVP_CipherInit() it can be removed from
5289 all individual ciphers. If the cipher wants to handle IVs or keys
5290 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
5293 Change lots of functions like EVP_EncryptUpdate() to now return a
5294 value: although software versions of the algorithms cannot fail
5295 any installed hardware versions can.
5298 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
5299 this option is set, tolerate broken clients that send the negotiated
5300 protocol version number instead of the requested protocol version
5304 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
5305 i.e. non-zero for export ciphersuites, zero otherwise.
5306 Previous versions had this flag inverted, inconsistent with
5307 rsa_tmp_cb (..._TMP_RSA_CB).
5308 [Bodo Moeller; problem reported by Amit Chopra]
5310 *) Add missing DSA library text string. Work around for some IIS
5311 key files with invalid SEQUENCE encoding.
5314 *) Add a document (doc/standards.txt) that list all kinds of standards
5315 and so on that are implemented in OpenSSL.
5318 *) Enhance c_rehash script. Old version would mishandle certificates
5319 with the same subject name hash and wouldn't handle CRLs at all.
5320 Added -fingerprint option to crl utility, to support new c_rehash
5324 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
5327 *) Fix for SSL server purpose checking. Server checking was
5328 rejecting certificates which had extended key usage present
5329 but no ssl client purpose.
5330 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
5332 *) Make PKCS#12 code work with no password. The PKCS#12 spec
5333 is a little unclear about how a blank password is handled.
5334 Since the password in encoded as a BMPString with terminating
5335 double NULL a zero length password would end up as just the
5336 double NULL. However no password at all is different and is
5337 handled differently in the PKCS#12 key generation code. NS
5338 treats a blank password as zero length. MSIE treats it as no
5339 password on export: but it will try both on import. We now do
5340 the same: PKCS12_parse() tries zero length and no password if
5341 the password is set to "" or NULL (NULL is now a valid password:
5342 it wasn't before) as does the pkcs12 application.
5345 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
5346 perror when PEM_read_bio_X509_REQ fails, the error message must
5347 be obtained from the error queue.
5350 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
5351 it in ERR_remove_state if appropriate, and change ERR_get_state
5352 accordingly to avoid race conditions (this is necessary because
5353 thread_hash is no longer constant once set).
5356 *) Bugfix for linux-elf makefile.one.
5359 *) RSA_get_default_method() will now cause a default
5360 RSA_METHOD to be chosen if one doesn't exist already.
5361 Previously this was only set during a call to RSA_new()
5362 or RSA_new_method(NULL) meaning it was possible for
5363 RSA_get_default_method() to return NULL.
5366 *) Added native name translation to the existing DSO code
5367 that will convert (if the flag to do so is set) filenames
5368 that are sufficiently small and have no path information
5369 into a canonical native form. Eg. "blah" converted to
5370 "libblah.so" or "blah.dll" etc.
5373 *) New function ERR_error_string_n(e, buf, len) which is like
5374 ERR_error_string(e, buf), but writes at most 'len' bytes
5375 including the 0 terminator. For ERR_error_string_n, 'buf'
5377 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
5379 *) CONF library reworked to become more general. A new CONF
5380 configuration file reader "class" is implemented as well as a
5381 new functions (NCONF_*, for "New CONF") to handle it. The now
5382 old CONF_* functions are still there, but are reimplemented to
5383 work in terms of the new functions. Also, a set of functions
5384 to handle the internal storage of the configuration data is
5385 provided to make it easier to write new configuration file
5386 reader "classes" (I can definitely see something reading a
5387 configuration file in XML format, for example), called _CONF_*,
5388 or "the configuration storage API"...
5390 The new configuration file reading functions are:
5392 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
5393 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
5395 NCONF_default, NCONF_WIN32
5397 NCONF_dump_fp, NCONF_dump_bio
5399 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
5400 NCONF_new creates a new CONF object. This works in the same way
5401 as other interfaces in OpenSSL, like the BIO interface.
5402 NCONF_dump_* dump the internal storage of the configuration file,
5403 which is useful for debugging. All other functions take the same
5404 arguments as the old CONF_* functions wth the exception of the
5405 first that must be a `CONF *' instead of a `LHASH *'.
5407 To make it easer to use the new classes with the old CONF_* functions,
5408 the function CONF_set_default_method is provided.
5411 *) Add '-tls1' option to 'openssl ciphers', which was already
5412 mentioned in the documentation but had not been implemented.
5413 (This option is not yet really useful because even the additional
5414 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
5417 *) Initial DSO code added into libcrypto for letting OpenSSL (and
5418 OpenSSL-based applications) load shared libraries and bind to
5419 them in a portable way.
5420 [Geoff Thorpe, with contributions from Richard Levitte]
5422 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
5424 *) Make sure _lrotl and _lrotr are only used with MSVC.
5426 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
5427 (the default implementation of RAND_status).
5429 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
5430 to '-clrext' (= clear extensions), as intended and documented.
5431 [Bodo Moeller; inconsistency pointed out by Michael Attili
5434 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
5435 was larger than the MD block size.
5436 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
5438 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
5439 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
5440 using the passed key: if the passed key was a private key the result
5441 of X509_print(), for example, would be to print out all the private key
5445 *) des_quad_cksum() byte order bug fix.
5446 [Ulf Möller, using the problem description in krb4-0.9.7, where
5447 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
5449 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
5451 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
5453 *) For easily testing in shell scripts whether some command
5454 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
5455 returns with exit code 0 iff no command of the given name is available.
5456 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
5457 the output goes to stdout and nothing is printed to stderr.
5458 Additional arguments are always ignored.
5460 Since for each cipher there is a command of the same name,
5461 the 'no-cipher' compilation switches can be tested this way.
5463 ('openssl no-XXX' is not able to detect pseudo-commands such
5464 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
5467 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
5470 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
5471 is set; it will be thrown away anyway because each handshake creates
5473 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
5474 to parameters -- in previous versions (since OpenSSL 0.9.3) the
5475 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
5476 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
5479 *) New s_client option -ign_eof: EOF at stdin is ignored, and
5480 'Q' and 'R' lose their special meanings (quit/renegotiate).
5481 This is part of what -quiet does; unlike -quiet, -ign_eof
5482 does not suppress any output.
5485 *) Add compatibility options to the purpose and trust code. The
5486 purpose X509_PURPOSE_ANY is "any purpose" which automatically
5487 accepts a certificate or CA, this was the previous behaviour,
5488 with all the associated security issues.
5490 X509_TRUST_COMPAT is the old trust behaviour: only and
5491 automatically trust self signed roots in certificate store. A
5492 new trust setting X509_TRUST_DEFAULT is used to specify that
5493 a purpose has no associated trust setting and it should instead
5494 use the value in the default purpose.
5497 *) Fix the PKCS#8 DSA private key code so it decodes keys again
5498 and fix a memory leak.
5501 *) In util/mkerr.pl (which implements 'make errors'), preserve
5502 reason strings from the previous version of the .c file, as
5503 the default to have only downcase letters (and digits) in
5504 automatically generated reasons codes is not always appropriate.
5507 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
5508 using strerror. Previously, ERR_reason_error_string() returned
5509 library names as reason strings for SYSerr; but SYSerr is a special
5510 case where small numbers are errno values, not library numbers.
5513 *) Add '-dsaparam' option to 'openssl dhparam' application. This
5514 converts DSA parameters into DH parameters. (When creating parameters,
5515 DSA_generate_parameters is used.)
5518 *) Include 'length' (recommended exponent length) in C code generated
5519 by 'openssl dhparam -C'.
5522 *) The second argument to set_label in perlasm was already being used
5523 so couldn't be used as a "file scope" flag. Moved to third argument
5527 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
5528 instead of RAND_bytes for encryption IVs and salts.
5531 *) Include RAND_status() into RAND_METHOD instead of implementing
5532 it only for md_rand.c Otherwise replacing the PRNG by calling
5533 RAND_set_rand_method would be impossible.
5536 *) Don't let DSA_generate_key() enter an infinite loop if the random
5537 number generation fails.
5540 *) New 'rand' application for creating pseudo-random output.
5543 *) Added configuration support for Linux/IA64
5544 [Rolf Haberrecker <rolf@suse.de>]
5546 *) Assembler module support for Mingw32.
5549 *) Shared library support for HPUX (in shlib/).
5550 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
5552 *) Shared library support for Solaris gcc.
5553 [Lutz Behnke <behnke@trustcenter.de>]
5555 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
5557 *) PKCS7_encrypt() was adding text MIME headers twice because they
5558 were added manually and by SMIME_crlf_copy().
5561 *) In bntest.c don't call BN_rand with zero bits argument.
5562 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
5564 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
5565 case was implemented. This caused BN_div_recp() to fail occasionally.
5568 *) Add an optional second argument to the set_label() in the perl
5569 assembly language builder. If this argument exists and is set
5570 to 1 it signals that the assembler should use a symbol whose
5571 scope is the entire file, not just the current function. This
5572 is needed with MASM which uses the format label:: for this scope.
5573 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
5575 *) Change the ASN1 types so they are typedefs by default. Before
5576 almost all types were #define'd to ASN1_STRING which was causing
5577 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
5581 *) Change names of new functions to the new get1/get0 naming
5582 convention: After 'get1', the caller owns a reference count
5583 and has to call ..._free; 'get0' returns a pointer to some
5584 data structure without incrementing reference counters.
5585 (Some of the existing 'get' functions increment a reference
5586 counter, some don't.)
5587 Similarly, 'set1' and 'add1' functions increase reference
5588 counters or duplicate objects.
5591 *) Allow for the possibility of temp RSA key generation failure:
5592 the code used to assume it always worked and crashed on failure.
5595 *) Fix potential buffer overrun problem in BIO_printf().
5596 [Ulf Möller, using public domain code by Patrick Powell; problem
5597 pointed out by David Sacerdote <das33@cornell.edu>]
5599 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
5600 RAND_egd() and RAND_status(). In the command line application,
5601 the EGD socket can be specified like a seed file using RANDFILE
5605 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
5606 Some CAs (e.g. Verisign) distribute certificates in this form.
5609 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
5610 list to exclude them. This means that no special compilation option
5611 is needed to use anonymous DH: it just needs to be included in the
5615 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
5616 EVP_MD_type. The old functionality is available in a new macro called
5617 EVP_MD_md(). Change code that uses it and update docs.
5620 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
5621 where the 'void *' argument is replaced by a function pointer argument.
5622 Previously 'void *' was abused to point to functions, which works on
5623 many platforms, but is not correct. As these functions are usually
5624 called by macros defined in OpenSSL header files, most source code
5625 should work without changes.
5628 *) <openssl/opensslconf.h> (which is created by Configure) now contains
5629 sections with information on -D... compiler switches used for
5630 compiling the library so that applications can see them. To enable
5631 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
5632 must be defined. E.g.,
5633 #define OPENSSL_ALGORITHM_DEFINES
5634 #include <openssl/opensslconf.h>
5635 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
5636 [Richard Levitte, Ulf and Bodo Möller]
5638 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
5642 *) Change the 'other' type in certificate aux info to a STACK_OF
5643 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
5644 the required ASN1 format: arbitrary types determined by an OID.
5647 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
5648 argument to 'req'. This is not because the function is newer or
5649 better than others it just uses the work 'NEW' in the certificate
5650 request header lines. Some software needs this.
5653 *) Reorganise password command line arguments: now passwords can be
5654 obtained from various sources. Delete the PEM_cb function and make
5655 it the default behaviour: i.e. if the callback is NULL and the
5656 usrdata argument is not NULL interpret it as a null terminated pass
5657 phrase. If usrdata and the callback are NULL then the pass phrase
5658 is prompted for as usual.
5661 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
5662 the support is automatically enabled. The resulting binaries will
5663 autodetect the card and use it if present.
5664 [Ben Laurie and Compaq Inc.]
5666 *) Work around for Netscape hang bug. This sends certificate request
5667 and server done in one record. Since this is perfectly legal in the
5668 SSL/TLS protocol it isn't a "bug" option and is on by default. See
5669 the bugs/SSLv3 entry for more info.
5672 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
5675 *) Add -rand argument to smime and pkcs12 applications and read/write
5679 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
5682 *) Add command line password options to the remaining applications.
5685 *) Bug fix for BN_div_recp() for numerators with an even number of
5689 *) More tests in bntest.c, and changed test_bn output.
5692 *) ./config recognizes MacOS X now.
5695 *) Bug fix for BN_div() when the first words of num and divsor are
5696 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
5699 *) Add support for various broken PKCS#8 formats, and command line
5700 options to produce them.
5703 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
5704 get temporary BIGNUMs from a BN_CTX.
5707 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
5711 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
5712 include a #define from the old name to the new. The original intent
5713 was that statically linked binaries could for example just call
5714 SSLeay_add_all_ciphers() to just add ciphers to the table and not
5715 link with digests. This never worked becayse SSLeay_add_all_digests()
5716 and SSLeay_add_all_ciphers() were in the same source file so calling
5717 one would link with the other. They are now in separate source files.
5720 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
5723 *) Use a less unusual form of the Miller-Rabin primality test (it used
5724 a binary algorithm for exponentiation integrated into the Miller-Rabin
5725 loop, our standard modexp algorithms are faster).
5728 *) Support for the EBCDIC character set completed.
5729 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
5731 *) Source code cleanups: use const where appropriate, eliminate casts,
5732 use void * instead of char * in lhash.
5735 *) Bugfix: ssl3_send_server_key_exchange was not restartable
5736 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
5737 this the server could overwrite ephemeral keys that the client
5741 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
5742 using 50 iterations of the Rabin-Miller test.
5744 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
5745 iterations of the Rabin-Miller test as required by the appendix
5746 to FIPS PUB 186[-1]) instead of DSA_is_prime.
5747 As BN_is_prime_fasttest includes trial division, DSA parameter
5748 generation becomes much faster.
5750 This implies a change for the callback functions in DSA_is_prime
5751 and DSA_generate_parameters: The callback function is called once
5752 for each positive witness in the Rabin-Miller test, not just
5753 occasionally in the inner loop; and the parameters to the
5754 callback function now provide an iteration count for the outer
5755 loop rather than for the current invocation of the inner loop.
5756 DSA_generate_parameters additionally can call the callback
5757 function with an 'iteration count' of -1, meaning that a
5758 candidate has passed the trial division test (when q is generated
5759 from an application-provided seed, trial division is skipped).
5762 *) New function BN_is_prime_fasttest that optionally does trial
5763 division before starting the Rabin-Miller test and has
5764 an additional BN_CTX * argument (whereas BN_is_prime always
5765 has to allocate at least one BN_CTX).
5766 'callback(1, -1, cb_arg)' is called when a number has passed the
5767 trial division stage.
5770 *) Fix for bug in CRL encoding. The validity dates weren't being handled
5774 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
5777 *) New function BN_pseudo_rand().
5780 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
5781 bignum version of BN_from_montgomery() with the working code from
5782 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
5786 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
5787 made it impossible to use the same SSL_SESSION data structure in
5788 SSL2 clients in multiple threads.
5791 *) The return value of RAND_load_file() no longer counts bytes obtained
5792 by stat(). RAND_load_file(..., -1) is new and uses the complete file
5793 to seed the PRNG (previously an explicit byte count was required).
5794 [Ulf Möller, Bodo Möller]
5796 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
5797 used (char *) instead of (void *) and had casts all over the place.
5800 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
5803 *) Retain source code compatibility for BN_prime_checks macro:
5804 BN_is_prime(..., BN_prime_checks, ...) now uses
5805 BN_prime_checks_for_size to determine the appropriate number of
5806 Rabin-Miller iterations.
5809 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
5810 DH_CHECK_P_NOT_SAFE_PRIME.
5811 (Check if this is true? OpenPGP calls them "strong".)
5814 *) Merge the functionality of "dh" and "gendh" programs into a new program
5815 "dhparam". The old programs are retained for now but will handle DH keys
5816 (instead of parameters) in future.
5819 *) Make the ciphers, s_server and s_client programs check the return values
5820 when a new cipher list is set.
5823 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
5824 ciphers. Before when the 56bit ciphers were enabled the sorting was
5827 The syntax for the cipher sorting has been extended to support sorting by
5828 cipher-strength (using the strength_bits hard coded in the tables).
5829 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
5831 Fix a bug in the cipher-command parser: when supplying a cipher command
5832 string with an "undefined" symbol (neither command nor alphanumeric
5833 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
5834 an error is flagged.
5836 Due to the strength-sorting extension, the code of the
5837 ssl_create_cipher_list() function was completely rearranged. I hope that
5838 the readability was also increased :-)
5839 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5841 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
5842 for the first serial number and places 2 in the serial number file. This
5843 avoids problems when the root CA is created with serial number zero and
5844 the first user certificate has the same issuer name and serial number
5848 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
5849 the new code. Add documentation for this stuff.
5852 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
5853 X509_*() to X509at_*() on the grounds that they don't handle X509
5854 structures and behave in an analagous way to the X509v3 functions:
5855 they shouldn't be called directly but wrapper functions should be used
5858 So we also now have some wrapper functions that call the X509at functions
5859 when passed certificate requests. (TO DO: similar things can be done with
5860 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
5861 things. Some of these need some d2i or i2d and print functionality
5862 because they handle more complex structures.)
5865 *) Add missing #ifndefs that caused missing symbols when building libssl
5866 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
5867 NO_RSA in ssl/s2*.c.
5868 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
5870 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
5871 has a return value which indicates the quality of the random data
5872 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
5873 error queue. New function RAND_pseudo_bytes() generates output that is
5874 guaranteed to be unique but not unpredictable. RAND_add is like
5875 RAND_seed, but takes an extra argument for an entropy estimate
5876 (RAND_seed always assumes full entropy).
5879 *) Do more iterations of Rabin-Miller probable prime test (specifically,
5880 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
5881 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
5882 in crypto/bn/bn_prime.c for the complete table). This guarantees a
5883 false-positive rate of at most 2^-80 for random input.
5886 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
5889 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
5890 in the 0.9.5 release), this returns the chain
5891 from an X509_CTX structure with a dup of the stack and all
5892 the X509 reference counts upped: so the stack will exist
5893 after X509_CTX_cleanup() has been called. Modify pkcs12.c
5896 Also make SSL_SESSION_print() print out the verify return
5900 *) Add manpage for the pkcs12 command. Also change the default
5901 behaviour so MAC iteration counts are used unless the new
5902 -nomaciter option is used. This improves file security and
5903 only older versions of MSIE (4.0 for example) need it.
5906 *) Honor the no-xxx Configure options when creating .DEF files.
5909 *) Add PKCS#10 attributes to field table: challengePassword,
5910 unstructuredName and unstructuredAddress. These are taken from
5911 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
5912 international characters are used.
5914 More changes to X509_ATTRIBUTE code: allow the setting of types
5915 based on strings. Remove the 'loc' parameter when adding
5916 attributes because these will be a SET OF encoding which is sorted
5920 *) Initial changes to the 'req' utility to allow request generation
5921 automation. This will allow an application to just generate a template
5922 file containing all the field values and have req construct the
5925 Initial support for X509_ATTRIBUTE handling. Stacks of these are
5926 used all over the place including certificate requests and PKCS#7
5927 structures. They are currently handled manually where necessary with
5928 some primitive wrappers for PKCS#7. The new functions behave in a
5929 manner analogous to the X509 extension functions: they allow
5930 attributes to be looked up by NID and added.
5932 Later something similar to the X509V3 code would be desirable to
5933 automatically handle the encoding, decoding and printing of the
5934 more complex types. The string types like challengePassword can
5935 be handled by the string table functions.
5937 Also modified the multi byte string table handling. Now there is
5938 a 'global mask' which masks out certain types. The table itself
5939 can use the flag STABLE_NO_MASK to ignore the mask setting: this
5940 is useful when for example there is only one permissible type
5941 (as in countryName) and using the mask might result in no valid
5945 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
5946 SSL_get_peer_finished to allow applications to obtain the latest
5947 Finished messages sent to the peer or expected from the peer,
5948 respectively. (SSL_get_peer_finished is usually the Finished message
5949 actually received from the peer, otherwise the protocol will be aborted.)
5951 As the Finished message are message digests of the complete handshake
5952 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
5953 be used for external authentication procedures when the authentication
5954 provided by SSL/TLS is not desired or is not enough.
5957 *) Enhanced support for Alpha Linux is added. Now ./config checks if
5958 the host supports BWX extension and if Compaq C is present on the
5959 $PATH. Just exploiting of the BWX extension results in 20-30%
5960 performance kick for some algorithms, e.g. DES and RC4 to mention
5961 a couple. Compaq C in turn generates ~20% faster code for MD5 and
5965 *) Add support for MS "fast SGC". This is arguably a violation of the
5966 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
5967 weak crypto and after checking the certificate is SGC a second one
5968 with strong crypto. MS SGC stops the first handshake after receiving
5969 the server certificate message and sends a second client hello. Since
5970 a server will typically do all the time consuming operations before
5971 expecting any further messages from the client (server key exchange
5972 is the most expensive) there is little difference between the two.
5974 To get OpenSSL to support MS SGC we have to permit a second client
5975 hello message after we have sent server done. In addition we have to
5976 reset the MAC if we do get this second client hello.
5979 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
5980 if a DER encoded private key is RSA or DSA traditional format. Changed
5981 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
5982 format DER encoded private key. Newer code should use PKCS#8 format which
5983 has the key type encoded in the ASN1 structure. Added DER private key
5984 support to pkcs8 application.
5987 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
5988 ciphersuites has been selected (as required by the SSL 3/TLS 1
5989 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
5990 is set, we interpret this as a request to violate the specification
5991 (the worst that can happen is a handshake failure, and 'correct'
5992 behaviour would result in a handshake failure anyway).
5995 *) In SSL_CTX_add_session, take into account that there might be multiple
5996 SSL_SESSION structures with the same session ID (e.g. when two threads
5997 concurrently obtain them from an external cache).
5998 The internal cache can handle only one SSL_SESSION with a given ID,
5999 so if there's a conflict, we now throw out the old one to achieve
6003 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
6004 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
6005 some routines that use cipher OIDs: some ciphers do not have OIDs
6006 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
6010 *) Simplify the trust setting structure and code. Now we just have
6011 two sequences of OIDs for trusted and rejected settings. These will
6012 typically have values the same as the extended key usage extension
6013 and any application specific purposes.
6015 The trust checking code now has a default behaviour: it will just
6016 check for an object with the same NID as the passed id. Functions can
6017 be provided to override either the default behaviour or the behaviour
6018 for a given id. SSL client, server and email already have functions
6019 in place for compatibility: they check the NID and also return "trusted"
6020 if the certificate is self signed.
6023 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
6024 traditional format into an EVP_PKEY structure.
6027 *) Add a password callback function PEM_cb() which either prompts for
6028 a password if usr_data is NULL or otherwise assumes it is a null
6029 terminated password. Allow passwords to be passed on command line
6030 environment or config files in a few more utilities.
6033 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
6034 keys. Add some short names for PKCS#8 PBE algorithms and allow them
6035 to be specified on the command line for the pkcs8 and pkcs12 utilities.
6036 Update documentation.
6039 *) Support for ASN1 "NULL" type. This could be handled before by using
6040 ASN1_TYPE but there wasn't any function that would try to read a NULL
6041 and produce an error if it couldn't. For compatibility we also have
6042 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
6043 don't allocate anything because they don't need to.
6046 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
6048 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
6050 *) Rebuild of the memory allocation routines used by OpenSSL code and
6051 possibly others as well. The purpose is to make an interface that
6052 provide hooks so anyone can build a separate set of allocation and
6053 deallocation routines to be used by OpenSSL, for example memory
6054 pool implementations, or something else, which was previously hard
6055 since Malloc(), Realloc() and Free() were defined as macros having
6056 the values malloc, realloc and free, respectively (except for Win32
6057 compilations). The same is provided for memory debugging code.
6058 OpenSSL already comes with functionality to find memory leaks, but
6059 this gives people a chance to debug other memory problems.
6061 With these changes, a new set of functions and macros have appeared:
6063 CRYPTO_set_mem_debug_functions() [F]
6064 CRYPTO_get_mem_debug_functions() [F]
6065 CRYPTO_dbg_set_options() [F]
6066 CRYPTO_dbg_get_options() [F]
6067 CRYPTO_malloc_debug_init() [M]
6069 The memory debug functions are NULL by default, unless the library
6070 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
6071 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
6072 gives the standard debugging functions that come with OpenSSL) or
6073 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
6074 provided by the library user) must be used. When the standard
6075 debugging functions are used, CRYPTO_dbg_set_options can be used to
6076 request additional information:
6077 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
6078 the CRYPTO_MDEBUG_xxx macro when compiling the library.
6080 Also, things like CRYPTO_set_mem_functions will always give the
6081 expected result (the new set of functions is used for allocation
6082 and deallocation) at all times, regardless of platform and compiler
6085 To finish it up, some functions that were never use in any other
6086 way than through macros have a new API and new semantic:
6089 CRYPTO_dbg_realloc()
6092 All macros of value have retained their old syntax.
6093 [Richard Levitte and Bodo Moeller]
6095 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
6096 ordering of SMIMECapabilities wasn't in "strength order" and there
6097 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
6101 *) Some ASN1 types with illegal zero length encoding (INTEGER,
6102 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
6103 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
6105 *) Merge in my S/MIME library for OpenSSL. This provides a simple
6106 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
6107 functionality to handle multipart/signed properly) and a utility
6108 called 'smime' to call all this stuff. This is based on code I
6109 originally wrote for Celo who have kindly allowed it to be
6110 included in OpenSSL.
6113 *) Add variants des_set_key_checked and des_set_key_unchecked of
6114 des_set_key (aka des_key_sched). Global variable des_check_key
6115 decides which of these is called by des_set_key; this way
6116 des_check_key behaves as it always did, but applications and
6117 the library itself, which was buggy for des_check_key == 1,
6118 have a cleaner way to pick the version they need.
6121 *) New function PKCS12_newpass() which changes the password of a
6125 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
6126 dynamic mix. In both cases the ids can be used as an index into the
6127 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
6128 functions so they accept a list of the field values and the
6129 application doesn't need to directly manipulate the X509_TRUST
6133 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
6137 *) Modify the way the V3 extension code looks up extensions. This now
6138 works in a similar way to the object code: we have some "standard"
6139 extensions in a static table which is searched with OBJ_bsearch()
6140 and the application can add dynamic ones if needed. The file
6141 crypto/x509v3/ext_dat.h now has the info: this file needs to be
6142 updated whenever a new extension is added to the core code and kept
6143 in ext_nid order. There is a simple program 'tabtest.c' which checks
6144 this. New extensions are not added too often so this file can readily
6145 be maintained manually.
6147 There are two big advantages in doing things this way. The extensions
6148 can be looked up immediately and no longer need to be "added" using
6149 X509V3_add_standard_extensions(): this function now does nothing.
6150 [Side note: I get *lots* of email saying the extension code doesn't
6151 work because people forget to call this function]
6152 Also no dynamic allocation is done unless new extensions are added:
6153 so if we don't add custom extensions there is no need to call
6154 X509V3_EXT_cleanup().
6157 *) Modify enc utility's salting as follows: make salting the default. Add a
6158 magic header, so unsalted files fail gracefully instead of just decrypting
6159 to garbage. This is because not salting is a big security hole, so people
6160 should be discouraged from doing it.
6163 *) Fixes and enhancements to the 'x509' utility. It allowed a message
6164 digest to be passed on the command line but it only used this
6165 parameter when signing a certificate. Modified so all relevant
6166 operations are affected by the digest parameter including the
6167 -fingerprint and -x509toreq options. Also -x509toreq choked if a
6168 DSA key was used because it didn't fix the digest.
6171 *) Initial certificate chain verify code. Currently tests the untrusted
6172 certificates for consistency with the verify purpose (which is set
6173 when the X509_STORE_CTX structure is set up) and checks the pathlength.
6175 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
6176 this is because it will reject chains with invalid extensions whereas
6177 every previous version of OpenSSL and SSLeay made no checks at all.
6179 Trust code: checks the root CA for the relevant trust settings. Trust
6180 settings have an initial value consistent with the verify purpose: e.g.
6181 if the verify purpose is for SSL client use it expects the CA to be
6182 trusted for SSL client use. However the default value can be changed to
6183 permit custom trust settings: one example of this would be to only trust
6184 certificates from a specific "secure" set of CAs.
6186 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
6187 which should be used for version portability: especially since the
6188 verify structure is likely to change more often now.
6190 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
6191 to set them. If not set then assume SSL clients will verify SSL servers
6194 Two new options to the verify program: -untrusted allows a set of
6195 untrusted certificates to be passed in and -purpose which sets the
6196 intended purpose of the certificate. If a purpose is set then the
6197 new chain verify code is used to check extension consistency.
6200 *) Support for the authority information access extension.
6203 *) Modify RSA and DSA PEM read routines to transparently handle
6204 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
6205 public keys in a format compatible with certificate
6206 SubjectPublicKeyInfo structures. Unfortunately there were already
6207 functions called *_PublicKey_* which used various odd formats so
6208 these are retained for compatibility: however the DSA variants were
6209 never in a public release so they have been deleted. Changed dsa/rsa
6210 utilities to handle the new format: note no releases ever handled public
6211 keys so we should be OK.
6213 The primary motivation for this change is to avoid the same fiasco
6214 that dogs private keys: there are several incompatible private key
6215 formats some of which are standard and some OpenSSL specific and
6216 require various evil hacks to allow partial transparent handling and
6217 even then it doesn't work with DER formats. Given the option anything
6218 other than PKCS#8 should be dumped: but the other formats have to
6219 stay in the name of compatibility.
6221 With public keys and the benefit of hindsight one standard format
6222 is used which works with EVP_PKEY, RSA or DSA structures: though
6223 it clearly returns an error if you try to read the wrong kind of key.
6225 Added a -pubkey option to the 'x509' utility to output the public key.
6226 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
6227 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
6228 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
6229 that do the same as the EVP_PKEY_assign_*() except they up the
6230 reference count of the added key (they don't "swallow" the
6234 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
6235 CRLs would fail if the file contained no certificates or no CRLs:
6236 added a new function to read in both types and return the number
6237 read: this means that if none are read it will be an error. The
6238 DER versions of the certificate and CRL reader would always fail
6239 because it isn't possible to mix certificates and CRLs in DER format
6240 without choking one or the other routine. Changed this to just read
6241 a certificate: this is the best we can do. Also modified the code
6242 in apps/verify.c to take notice of return codes: it was previously
6243 attempting to read in certificates from NULL pointers and ignoring
6244 any errors: this is one reason why the cert and CRL reader seemed
6245 to work. It doesn't check return codes from the default certificate
6246 routines: these may well fail if the certificates aren't installed.
6249 *) Code to support otherName option in GeneralName.
6252 *) First update to verify code. Change the verify utility
6253 so it warns if it is passed a self signed certificate:
6254 for consistency with the normal behaviour. X509_verify
6255 has been modified to it will now verify a self signed
6256 certificate if *exactly* the same certificate appears
6257 in the store: it was previously impossible to trust a
6258 single self signed certificate. This means that:
6259 openssl verify ss.pem
6260 now gives a warning about a self signed certificate but
6261 openssl verify -CAfile ss.pem ss.pem
6265 *) For servers, store verify_result in SSL_SESSION data structure
6266 (and add it to external session representation).
6267 This is needed when client certificate verifications fails,
6268 but an application-provided verification callback (set by
6269 SSL_CTX_set_cert_verify_callback) allows accepting the session
6270 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
6271 but returns 1): When the session is reused, we have to set
6272 ssl->verify_result to the appropriate error code to avoid
6274 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
6276 *) Fix a bug in the new PKCS#7 code: it didn't consider the
6277 case in PKCS7_dataInit() where the signed PKCS7 structure
6278 didn't contain any existing data because it was being created.
6279 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
6281 *) Add a salt to the key derivation routines in enc.c. This
6282 forms the first 8 bytes of the encrypted file. Also add a
6283 -S option to allow a salt to be input on the command line.
6286 *) New function X509_cmp(). Oddly enough there wasn't a function
6287 to compare two certificates. We do this by working out the SHA1
6288 hash and comparing that. X509_cmp() will be needed by the trust
6292 *) SSL_get1_session() is like SSL_get_session(), but increments
6293 the reference count in the SSL_SESSION returned.
6294 [Geoff Thorpe <geoff@eu.c2.net>]
6296 *) Fix for 'req': it was adding a null to request attributes.
6297 Also change the X509_LOOKUP and X509_INFO code to handle
6298 certificate auxiliary information.
6301 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
6305 *) Add the possibility to add extra information to the memory leak
6306 detecting output, to form tracebacks, showing from where each
6307 allocation was originated: CRYPTO_push_info("constant string") adds
6308 the string plus current file name and line number to a per-thread
6309 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
6310 is like calling CYRPTO_pop_info() until the stack is empty.
6311 Also updated memory leak detection code to be multi-thread-safe.
6314 *) Add options -text and -noout to pkcs7 utility and delete the
6315 encryption options which never did anything. Update docs.
6318 *) Add options to some of the utilities to allow the pass phrase
6319 to be included on either the command line (not recommended on
6320 OSes like Unix) or read from the environment. Update the
6321 manpages and fix a few bugs.
6324 *) Add a few manpages for some of the openssl commands.
6327 *) Fix the -revoke option in ca. It was freeing up memory twice,
6328 leaking and not finding already revoked certificates.
6331 *) Extensive changes to support certificate auxiliary information.
6332 This involves the use of X509_CERT_AUX structure and X509_AUX
6333 functions. An X509_AUX function such as PEM_read_X509_AUX()
6334 can still read in a certificate file in the usual way but it
6335 will also read in any additional "auxiliary information". By
6336 doing things this way a fair degree of compatibility can be
6337 retained: existing certificates can have this information added
6338 using the new 'x509' options.
6340 Current auxiliary information includes an "alias" and some trust
6341 settings. The trust settings will ultimately be used in enhanced
6342 certificate chain verification routines: currently a certificate
6343 can only be trusted if it is self signed and then it is trusted
6347 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
6348 The problem was that one of the replacement routines had not been working
6349 since SSLeay releases. For now the offending routine has been replaced
6350 with non-optimised assembler. Even so, this now gives around 95%
6351 performance improvement for 1024 bit RSA signs.
6354 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
6355 handling. Most clients have the effective key size in bits equal to
6356 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
6357 A few however don't do this and instead use the size of the decrypted key
6358 to determine the RC2 key length and the AlgorithmIdentifier to determine
6359 the effective key length. In this case the effective key length can still
6360 be 40 bits but the key length can be 168 bits for example. This is fixed
6361 by manually forcing an RC2 key into the EVP_PKEY structure because the
6362 EVP code can't currently handle unusual RC2 key sizes: it always assumes
6363 the key length and effective key length are equal.
6366 *) Add a bunch of functions that should simplify the creation of
6367 X509_NAME structures. Now you should be able to do:
6368 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
6369 and have it automatically work out the correct field type and fill in
6370 the structures. The more adventurous can try:
6371 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
6372 and it will (hopefully) work out the correct multibyte encoding.
6375 *) Change the 'req' utility to use the new field handling and multibyte
6376 copy routines. Before the DN field creation was handled in an ad hoc
6377 way in req, ca, and x509 which was rather broken and didn't support
6378 BMPStrings or UTF8Strings. Since some software doesn't implement
6379 BMPStrings or UTF8Strings yet, they can be enabled using the config file
6380 using the dirstring_type option. See the new comment in the default
6381 openssl.cnf for more info.
6384 *) Make crypto/rand/md_rand.c more robust:
6385 - Assure unique random numbers after fork().
6386 - Make sure that concurrent threads access the global counter and
6387 md serializably so that we never lose entropy in them
6388 or use exactly the same state in multiple threads.
6389 Access to the large state is not always serializable because
6390 the additional locking could be a performance killer, and
6391 md should be large enough anyway.
6394 *) New file apps/app_rand.c with commonly needed functionality
6395 for handling the random seed file.
6397 Use the random seed file in some applications that previously did not:
6399 dsaparam -genkey (which also ignored its '-rand' option),
6402 x509 (when signing).
6403 Except on systems with /dev/urandom, it is crucial to have a random
6404 seed file at least for key creation, DSA signing, and for DH exchanges;
6405 for RSA signatures we could do without one.
6407 gendh and gendsa (unlike genrsa) used to read only the first byte
6408 of each file listed in the '-rand' option. The function as previously
6409 found in genrsa is now in app_rand.c and is used by all programs
6410 that support '-rand'.
6413 *) In RAND_write_file, use mode 0600 for creating files;
6414 don't just chmod when it may be too late.
6417 *) Report an error from X509_STORE_load_locations
6418 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
6421 *) New function ASN1_mbstring_copy() this copies a string in either
6422 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
6423 into an ASN1_STRING type. A mask of permissible types is passed
6424 and it chooses the "minimal" type to use or an error if not type
6428 *) Add function equivalents to the various macros in asn1.h. The old
6429 macros are retained with an M_ prefix. Code inside the library can
6430 use the M_ macros. External code (including the openssl utility)
6431 should *NOT* in order to be "shared library friendly".
6434 *) Add various functions that can check a certificate's extensions
6435 to see if it usable for various purposes such as SSL client,
6436 server or S/MIME and CAs of these types. This is currently
6437 VERY EXPERIMENTAL but will ultimately be used for certificate chain
6438 verification. Also added a -purpose flag to x509 utility to
6439 print out all the purposes.
6442 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
6446 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
6447 for, obtain and decode and extension and obtain its critical flag.
6448 This allows all the necessary extension code to be handled in a
6449 single function call.
6452 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
6453 platforms. See crypto/rc4/rc4_enc.c for further details.
6456 *) New -noout option to asn1parse. This causes no output to be produced
6457 its main use is when combined with -strparse and -out to extract data
6458 from a file (which may not be in ASN.1 format).
6461 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
6462 when producing the local key id.
6463 [Richard Levitte <levitte@stacken.kth.se>]
6465 *) New option -dhparam in s_server. This allows a DH parameter file to be
6466 stated explicitly. If it is not stated then it tries the first server
6467 certificate file. The previous behaviour hard coded the filename
6471 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
6472 a public key to be input or output. For example:
6473 openssl rsa -in key.pem -pubout -out pubkey.pem
6474 Also added necessary DSA public key functions to handle this.
6477 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
6478 in the message. This was handled by allowing
6479 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
6480 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
6482 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
6483 to the end of the strings whereas this didn't. This would cause problems
6484 if strings read with d2i_ASN1_bytes() were later modified.
6485 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
6487 *) Fix for base64 decode bug. When a base64 bio reads only one line of
6488 data and it contains EOF it will end up returning an error. This is
6489 caused by input 46 bytes long. The cause is due to the way base64
6490 BIOs find the start of base64 encoded data. They do this by trying a
6491 trial decode on each line until they find one that works. When they
6492 do a flag is set and it starts again knowing it can pass all the
6493 data directly through the decoder. Unfortunately it doesn't reset
6494 the context it uses. This means that if EOF is reached an attempt
6495 is made to pass two EOFs through the context and this causes the
6496 resulting error. This can also cause other problems as well. As is
6497 usual with these problems it takes *ages* to find and the fix is
6498 trivial: move one line.
6499 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
6501 *) Ugly workaround to get s_client and s_server working under Windows. The
6502 old code wouldn't work because it needed to select() on sockets and the
6503 tty (for keypresses and to see if data could be written). Win32 only
6504 supports select() on sockets so we select() with a 1s timeout on the
6505 sockets and then see if any characters are waiting to be read, if none
6506 are present then we retry, we also assume we can always write data to
6507 the tty. This isn't nice because the code then blocks until we've
6508 received a complete line of data and it is effectively polling the
6509 keyboard at 1s intervals: however it's quite a bit better than not
6510 working at all :-) A dedicated Windows application might handle this
6511 with an event loop for example.
6514 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
6515 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
6516 will be called when RSA_sign() and RSA_verify() are used. This is useful
6517 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
6518 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
6519 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
6520 This necessitated the support of an extra signature type NID_md5_sha1
6521 for SSL signatures and modifications to the SSL library to use it instead
6522 of calling RSA_public_decrypt() and RSA_private_encrypt().
6525 *) Add new -verify -CAfile and -CApath options to the crl program, these
6526 will lookup a CRL issuers certificate and verify the signature in a
6527 similar way to the verify program. Tidy up the crl program so it
6528 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
6529 less strict. It will now permit CRL extensions even if it is not
6530 a V2 CRL: this will allow it to tolerate some broken CRLs.
6533 *) Initialize all non-automatic variables each time one of the openssl
6534 sub-programs is started (this is necessary as they may be started
6535 multiple times from the "OpenSSL>" prompt).
6536 [Lennart Bang, Bodo Moeller]
6538 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
6539 removing all other RSA functionality (this is what NO_RSA does). This
6540 is so (for example) those in the US can disable those operations covered
6541 by the RSA patent while allowing storage and parsing of RSA keys and RSA
6545 *) Non-copying interface to BIO pairs.
6546 (still largely untested)
6549 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
6550 ASCII string. This was handled independently in various places before.
6553 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
6554 UTF8 strings a character at a time.
6557 *) Use client_version from client hello to select the protocol
6558 (s23_srvr.c) and for RSA client key exchange verification
6559 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
6562 *) Add various utility functions to handle SPKACs, these were previously
6563 handled by poking round in the structure internals. Added new function
6564 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
6565 print, verify and generate SPKACs. Based on an original idea from
6566 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
6569 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
6572 *) Allow the config file extension section to be overwritten on the
6573 command line. Based on an original idea from Massimiliano Pala
6574 <madwolf@comune.modena.it>. The new option is called -extensions
6575 and can be applied to ca, req and x509. Also -reqexts to override
6576 the request extensions in req and -crlexts to override the crl extensions
6580 *) Add new feature to the SPKAC handling in ca. Now you can include
6581 the same field multiple times by preceding it by "XXXX." for example:
6584 this is the same syntax as used in the req config file.
6587 *) Allow certificate extensions to be added to certificate requests. These
6588 are specified in a 'req_extensions' option of the req section of the
6589 config file. They can be printed out with the -text option to req but
6590 are otherwise ignored at present.
6593 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
6594 data read consists of only the final block it would not decrypted because
6595 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
6596 A misplaced 'break' also meant the decrypted final block might not be
6597 copied until the next read.
6600 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
6601 a few extra parameters to the DH structure: these will be useful if
6602 for example we want the value of 'q' or implement X9.42 DH.
6605 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
6606 provides hooks that allow the default DSA functions or functions on a
6607 "per key" basis to be replaced. This allows hardware acceleration and
6608 hardware key storage to be handled without major modification to the
6609 library. Also added low level modexp hooks and CRYPTO_EX structure and
6610 associated functions.
6613 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
6614 as "read only": it can't be written to and the buffer it points to will
6615 not be freed. Reading from a read only BIO is much more efficient than
6616 a normal memory BIO. This was added because there are several times when
6617 an area of memory needs to be read from a BIO. The previous method was
6618 to create a memory BIO and write the data to it, this results in two
6619 copies of the data and an O(n^2) reading algorithm. There is a new
6620 function BIO_new_mem_buf() which creates a read only memory BIO from
6621 an area of memory. Also modified the PKCS#7 routines to use read only
6625 *) Bugfix: ssl23_get_client_hello did not work properly when called in
6626 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
6627 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
6628 but a retry condition occured while trying to read the rest.
6631 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
6632 NID_pkcs7_encrypted by default: this was wrong since this should almost
6633 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
6634 the encrypted data type: this is a more sensible place to put it and it
6635 allows the PKCS#12 code to be tidied up that duplicated this
6639 *) Changed obj_dat.pl script so it takes its input and output files on
6640 the command line. This should avoid shell escape redirection problems
6644 *) Initial support for certificate extension requests, these are included
6645 in things like Xenroll certificate requests. Included functions to allow
6646 extensions to be obtained and added.
6649 *) -crlf option to s_client and s_server for sending newlines as
6650 CRLF (as required by many protocols).
6653 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
6655 *) Install libRSAglue.a when OpenSSL is built with RSAref.
6656 [Ralf S. Engelschall]
6658 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
6659 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
6661 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
6665 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
6666 DH parameters/keys (q is lost during that conversion, but the resulting
6667 DH parameters contain its length).
6669 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
6670 much faster than DH_generate_parameters (which creates parameters
6671 where p = 2*q + 1), and also the smaller q makes DH computations
6672 much more efficient (160-bit exponentiation instead of 1024-bit
6673 exponentiation); so this provides a convenient way to support DHE
6674 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
6675 utter importance to use
6676 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6678 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6679 when such DH parameters are used, because otherwise small subgroup
6680 attacks may become possible!
6683 *) Avoid memory leak in i2d_DHparams.
6686 *) Allow the -k option to be used more than once in the enc program:
6687 this allows the same encrypted message to be read by multiple recipients.
6690 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
6691 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
6692 it will always use the numerical form of the OID, even if it has a short
6696 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
6697 method only got called if p,q,dmp1,dmq1,iqmp components were present,
6698 otherwise bn_mod_exp was called. In the case of hardware keys for example
6699 no private key components need be present and it might store extra data
6700 in the RSA structure, which cannot be accessed from bn_mod_exp.
6701 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
6702 private key operations.
6705 *) Added support for SPARC Linux.
6708 *) pem_password_cb function type incompatibly changed from
6709 typedef int pem_password_cb(char *buf, int size, int rwflag);
6711 ....(char *buf, int size, int rwflag, void *userdata);
6712 so that applications can pass data to their callbacks:
6713 The PEM[_ASN1]_{read,write}... functions and macros now take an
6714 additional void * argument, which is just handed through whenever
6715 the password callback is called.
6716 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
6718 New function SSL_CTX_set_default_passwd_cb_userdata.
6720 Compatibility note: As many C implementations push function arguments
6721 onto the stack in reverse order, the new library version is likely to
6722 interoperate with programs that have been compiled with the old
6723 pem_password_cb definition (PEM_whatever takes some data that
6724 happens to be on the stack as its last argument, and the callback
6725 just ignores this garbage); but there is no guarantee whatsoever that
6728 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
6729 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
6730 problems not only on Windows, but also on some Unix platforms.
6731 To avoid problematic command lines, these definitions are now in an
6732 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
6733 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
6736 *) MIPS III/IV assembler module is reimplemented.
6739 *) More DES library cleanups: remove references to srand/rand and
6740 delete an unused file.
6743 *) Add support for the the free Netwide assembler (NASM) under Win32,
6744 since not many people have MASM (ml) and it can be hard to obtain.
6745 This is currently experimental but it seems to work OK and pass all
6746 the tests. Check out INSTALL.W32 for info.
6749 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
6750 without temporary keys kept an extra copy of the server key,
6751 and connections with temporary keys did not free everything in case
6755 *) New function RSA_check_key and new openssl rsa option -check
6756 for verifying the consistency of RSA keys.
6757 [Ulf Moeller, Bodo Moeller]
6759 *) Various changes to make Win32 compile work:
6760 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
6761 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
6762 comparison" warnings.
6763 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
6766 *) Add a debugging option to PKCS#5 v2 key generation function: when
6767 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
6768 derived keys are printed to stderr.
6771 *) Copy the flags in ASN1_STRING_dup().
6772 [Roman E. Pavlov <pre@mo.msk.ru>]
6774 *) The x509 application mishandled signing requests containing DSA
6775 keys when the signing key was also DSA and the parameters didn't match.
6777 It was supposed to omit the parameters when they matched the signing key:
6778 the verifying software was then supposed to automatically use the CA's
6779 parameters if they were absent from the end user certificate.
6781 Omitting parameters is no longer recommended. The test was also
6782 the wrong way round! This was probably due to unusual behaviour in
6783 EVP_cmp_parameters() which returns 1 if the parameters match.
6784 This meant that parameters were omitted when they *didn't* match and
6785 the certificate was useless. Certificates signed with 'ca' didn't have
6787 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
6789 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
6790 The interface is as follows:
6791 Applications can use
6792 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
6793 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
6794 "off" is now the default.
6795 The library internally uses
6796 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
6797 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
6798 to disable memory-checking temporarily.
6800 Some inconsistent states that previously were possible (and were
6801 even the default) are now avoided.
6803 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
6804 with each memory chunk allocated; this is occasionally more helpful
6805 than just having a counter.
6807 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
6809 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
6813 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
6814 which largely parallels "options", but is for changing API behaviour,
6815 whereas "options" are about protocol behaviour.
6816 Initial "mode" flags are:
6818 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
6819 a single record has been written.
6820 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
6821 retries use the same buffer location.
6822 (But all of the contents must be
6826 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
6829 *) Fix problems with no-hmac etc.
6830 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
6832 *) New functions RSA_get_default_method(), RSA_set_method() and
6833 RSA_get_method(). These allows replacement of RSA_METHODs without having
6834 to mess around with the internals of an RSA structure.
6837 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
6838 Also really enable memory leak checks in openssl.c and in some
6840 [Chad C. Mulligan, Bodo Moeller]
6842 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
6843 up the length of negative integers. This has now been simplified to just
6844 store the length when it is first determined and use it later, rather
6845 than trying to keep track of where data is copied and updating it to
6847 [Steve Henson, reported by Brien Wheeler
6848 <bwheeler@authentica-security.com>]
6850 *) Add a new function PKCS7_signatureVerify. This allows the verification
6851 of a PKCS#7 signature but with the signing certificate passed to the
6852 function itself. This contrasts with PKCS7_dataVerify which assumes the
6853 certificate is present in the PKCS#7 structure. This isn't always the
6854 case: certificates can be omitted from a PKCS#7 structure and be
6855 distributed by "out of band" means (such as a certificate database).
6858 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
6859 function prototypes in pem.h, also change util/mkdef.pl to add the
6860 necessary function names.
6863 *) mk1mf.pl (used by Windows builds) did not properly read the
6864 options set by Configure in the top level Makefile, and Configure
6865 was not even able to write more than one option correctly.
6866 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
6869 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
6870 file to be loaded from a BIO or FILE pointer. The BIO version will
6871 for example allow memory BIOs to contain config info.
6874 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
6875 Whoever hopes to achieve shared-library compatibility across versions
6876 must use this, not the compile-time macro.
6877 (Exercise 0.9.4: Which is the minimum library version required by
6879 Note: All this applies only to multi-threaded programs, others don't
6883 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
6884 through a BIO pair triggered the default case, i.e.
6885 SSLerr(...,SSL_R_UNKNOWN_STATE).
6888 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
6889 can use the SSL library even if none of the specific BIOs is
6893 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
6894 for the encoded length.
6895 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
6897 *) Add initial documentation of the X509V3 functions.
6900 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
6901 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
6902 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
6903 secure PKCS#8 private key format with a high iteration count.
6906 *) Fix determination of Perl interpreter: A perl or perl5
6907 _directory_ in $PATH was also accepted as the interpreter.
6908 [Ralf S. Engelschall]
6910 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
6911 wrong with it but it was very old and did things like calling
6912 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
6916 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
6917 to use the new extension code.
6920 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
6921 with macros. This should make it easier to change their form, add extra
6922 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
6926 *) Add to configuration table a new entry that can specify an alternative
6927 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
6928 according to Mark Crispin <MRC@Panda.COM>.
6932 *) DES CBC did not update the IV. Weird.
6935 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
6936 Changing the behaviour of the former might break existing programs --
6937 where IV updating is needed, des_ncbc_encrypt can be used.
6940 *) When bntest is run from "make test" it drives bc to check its
6941 calculations, as well as internally checking them. If an internal check
6942 fails, it needs to cause bc to give a non-zero result or make test carries
6943 on without noticing the failure. Fixed.
6946 *) DES library cleanups.
6949 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
6950 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
6951 ciphers. NOTE: although the key derivation function has been verified
6952 against some published test vectors it has not been extensively tested
6953 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
6957 *) Instead of "mkdir -p", which is not fully portable, use new
6958 Perl script "util/mkdir-p.pl".
6961 *) Rewrite the way password based encryption (PBE) is handled. It used to
6962 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
6963 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
6964 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
6965 the 'parameter' field of the AlgorithmIdentifier is passed to the
6966 underlying key generation function so it must do its own ASN1 parsing.
6967 This has also changed the EVP_PBE_CipherInit() function which now has a
6968 'parameter' argument instead of literal salt and iteration count values
6969 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
6972 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
6973 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
6974 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
6975 KEY" because this clashed with PKCS#8 unencrypted string. Since this
6976 value was just used as a "magic string" and not used directly its
6977 value doesn't matter.
6980 *) Introduce some semblance of const correctness to BN. Shame C doesn't
6984 *) "linux-sparc64" configuration (ultrapenguin).
6985 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
6986 "linux-sparc" configuration.
6987 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
6989 *) config now generates no-xxx options for missing ciphers.
6992 *) Support the EBCDIC character set (work in progress).
6993 File ebcdic.c not yet included because it has a different license.
6994 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6996 *) Support BS2000/OSD-POSIX.
6997 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6999 *) Make callbacks for key generation use void * instead of char *.
7002 *) Make S/MIME samples compile (not yet tested).
7005 *) Additional typesafe stacks.
7008 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
7012 Changes between 0.9.3 and 0.9.3a [29 May 1999]
7014 *) New configuration variant "sco5-gcc".
7016 *) Updated some demos.
7017 [Sean O Riordain, Wade Scholine]
7019 *) Add missing BIO_free at exit of pkcs12 application.
7022 *) Fix memory leak in conf.c.
7025 *) Updates for Win32 to assembler version of MD5.
7028 *) Set #! path to perl in apps/der_chop to where we found it
7029 instead of using a fixed path.
7032 *) SHA library changes for irix64-mips4-cc.
7035 *) Improvements for VMS support.
7039 Changes between 0.9.2b and 0.9.3 [24 May 1999]
7041 *) Bignum library bug fix. IRIX 6 passes "make test" now!
7042 This also avoids the problems with SC4.2 and unpatched SC5.
7043 [Andy Polyakov <appro@fy.chalmers.se>]
7045 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
7046 These are required because of the typesafe stack would otherwise break
7047 existing code. If old code used a structure member which used to be STACK
7048 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
7049 sk_num or sk_value it would produce an error because the num, data members
7050 are not present in STACK_OF. Now it just produces a warning. sk_set
7051 replaces the old method of assigning a value to sk_value
7052 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
7053 that does this will no longer work (and should use sk_set instead) but
7054 this could be regarded as a "questionable" behaviour anyway.
7057 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
7058 correctly handle encrypted S/MIME data.
7061 *) Change type of various DES function arguments from des_cblock
7062 (which means, in function argument declarations, pointer to char)
7063 to des_cblock * (meaning pointer to array with 8 char elements),
7064 which allows the compiler to do more typechecking; it was like
7065 that back in SSLeay, but with lots of ugly casts.
7067 Introduce new type const_des_cblock.
7070 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
7071 problems: find RecipientInfo structure that matches recipient certificate
7072 and initialise the ASN1 structures properly based on passed cipher.
7075 *) Belatedly make the BN tests actually check the results.
7078 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
7079 to and from BNs: it was completely broken. New compilation option
7080 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
7081 key elements as negative integers.
7084 *) Reorganize and speed up MD5.
7085 [Andy Polyakov <appro@fy.chalmers.se>]
7088 [Richard Levitte <richard@levitte.org>]
7090 *) New option -out to asn1parse to allow the parsed structure to be
7091 output to a file. This is most useful when combined with the -strparse
7092 option to examine the output of things like OCTET STRINGS.
7095 *) Make SSL library a little more fool-proof by not requiring any longer
7096 that SSL_set_{accept,connect}_state be called before
7097 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
7098 in many applications because usually everything *appeared* to work as
7099 intended anyway -- now it really works as intended).
7102 *) Move openssl.cnf out of lib/.
7105 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
7106 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
7107 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
7108 [Ralf S. Engelschall]
7110 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
7111 handle PKCS#7 enveloped data properly.
7112 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
7114 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
7115 copying pointers. The cert_st handling is changed by this in
7116 various ways (and thus what used to be known as ctx->default_cert
7117 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
7118 any longer when s->cert does not give us what we need).
7119 ssl_cert_instantiate becomes obsolete by this change.
7120 As soon as we've got the new code right (possibly it already is?),
7121 we have solved a couple of bugs of the earlier code where s->cert
7122 was used as if it could not have been shared with other SSL structures.
7124 Note that using the SSL API in certain dirty ways now will result
7125 in different behaviour than observed with earlier library versions:
7126 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
7127 does not influence s as it used to.
7129 In order to clean up things more thoroughly, inside SSL_SESSION
7130 we don't use CERT any longer, but a new structure SESS_CERT
7131 that holds per-session data (if available); currently, this is
7132 the peer's certificate chain and, for clients, the server's certificate
7133 and temporary key. CERT holds only those values that can have
7134 meaningful defaults in an SSL_CTX.
7137 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
7138 from the internal representation. Various PKCS#7 fixes: remove some
7139 evil casts and set the enc_dig_alg field properly based on the signing
7143 *) Allow PKCS#12 password to be set from the command line or the
7144 environment. Let 'ca' get its config file name from the environment
7145 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
7149 *) Allow certificate policies extension to use an IA5STRING for the
7150 organization field. This is contrary to the PKIX definition but
7151 VeriSign uses it and IE5 only recognises this form. Document 'x509'
7155 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
7156 without disallowing inline assembler and the like for non-pedantic builds.
7159 *) Support Borland C++ builder.
7160 [Janez Jere <jj@void.si>, modified by Ulf Möller]
7165 *) SHA-1 cleanups and performance enhancements.
7166 [Andy Polyakov <appro@fy.chalmers.se>]
7168 *) Sparc v8plus assembler for the bignum library.
7169 [Andy Polyakov <appro@fy.chalmers.se>]
7171 *) Accept any -xxx and +xxx compiler options in Configure.
7174 *) Update HPUX configuration.
7177 *) Add missing sk_<type>_unshift() function to safestack.h
7178 [Ralf S. Engelschall]
7180 *) New function SSL_CTX_use_certificate_chain_file that sets the
7181 "extra_cert"s in addition to the certificate. (This makes sense
7182 only for "PEM" format files, as chains as a whole are not
7186 *) Support verify_depth from the SSL API.
7187 x509_vfy.c had what can be considered an off-by-one-error:
7188 Its depth (which was not part of the external interface)
7189 was actually counting the number of certificates in a chain;
7190 now it really counts the depth.
7193 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
7194 instead of X509err, which often resulted in confusing error
7195 messages since the error codes are not globally unique
7196 (e.g. an alleged error in ssl3_accept when a certificate
7197 didn't match the private key).
7199 *) New function SSL_CTX_set_session_id_context that allows to set a default
7200 value (so that you don't need SSL_set_session_id_context for each
7201 connection using the SSL_CTX).
7204 *) OAEP decoding bug fix.
7207 *) Support INSTALL_PREFIX for package builders, as proposed by
7211 *) New Configure options "threads" and "no-threads". For systems
7212 where the proper compiler options are known (currently Solaris
7213 and Linux), "threads" is the default.
7216 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
7219 *) Install various scripts to $(OPENSSLDIR)/misc, not to
7220 $(INSTALLTOP)/bin -- they shouldn't clutter directories
7221 such as /usr/local/bin.
7224 *) "make linux-shared" to build shared libraries.
7225 [Niels Poppe <niels@netbox.org>]
7227 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
7230 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
7231 extension adding in x509 utility.
7234 *) Remove NOPROTO sections and error code comments.
7237 *) Partial rewrite of the DEF file generator to now parse the ANSI
7241 *) New Configure options --prefix=DIR and --openssldir=DIR.
7244 *) Complete rewrite of the error code script(s). It is all now handled
7245 by one script at the top level which handles error code gathering,
7246 header rewriting and C source file generation. It should be much better
7247 than the old method: it now uses a modified version of Ulf's parser to
7248 read the ANSI prototypes in all header files (thus the old K&R definitions
7249 aren't needed for error creation any more) and do a better job of
7250 translating function codes into names. The old 'ASN1 error code imbedded
7251 in a comment' is no longer necessary and it doesn't use .err files which
7252 have now been deleted. Also the error code call doesn't have to appear all
7253 on one line (which resulted in some large lines...).
7256 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
7259 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
7260 0 (which usually indicates a closed connection), but continue reading.
7263 *) Fix some race conditions.
7266 *) Add support for CRL distribution points extension. Add Certificate
7267 Policies and CRL distribution points documentation.
7270 *) Move the autogenerated header file parts to crypto/opensslconf.h.
7273 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
7274 8 of keying material. Merlin has also confirmed interop with this fix
7275 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
7276 [Merlin Hughes <merlin@baltimore.ie>]
7278 *) Fix lots of warnings.
7279 [Richard Levitte <levitte@stacken.kth.se>]
7281 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
7282 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
7283 [Richard Levitte <levitte@stacken.kth.se>]
7285 *) Fix problems with sizeof(long) == 8.
7286 [Andy Polyakov <appro@fy.chalmers.se>]
7288 *) Change functions to ANSI C.
7291 *) Fix typos in error codes.
7292 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
7294 *) Remove defunct assembler files from Configure.
7297 *) SPARC v8 assembler BIGNUM implementation.
7298 [Andy Polyakov <appro@fy.chalmers.se>]
7300 *) Support for Certificate Policies extension: both print and set.
7301 Various additions to support the r2i method this uses.
7304 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
7305 return a const string when you are expecting an allocated buffer.
7308 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
7309 types DirectoryString and DisplayText.
7312 *) Add code to allow r2i extensions to access the configuration database,
7313 add an LHASH database driver and add several ctx helper functions.
7316 *) Fix an evil bug in bn_expand2() which caused various BN functions to
7317 fail when they extended the size of a BIGNUM.
7320 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
7321 support typesafe stack.
7324 *) Fix typo in SSL_[gs]et_options().
7325 [Nils Frostberg <nils@medcom.se>]
7327 *) Delete various functions and files that belonged to the (now obsolete)
7328 old X509V3 handling code.
7331 *) New Configure option "rsaref".
7334 *) Don't auto-generate pem.h.
7337 *) Introduce type-safe ASN.1 SETs.
7340 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
7341 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
7343 *) Introduce type-safe STACKs. This will almost certainly break lots of code
7344 that links with OpenSSL (well at least cause lots of warnings), but fear
7345 not: the conversion is trivial, and it eliminates loads of evil casts. A
7346 few STACKed things have been converted already. Feel free to convert more.
7347 In the fullness of time, I'll do away with the STACK type altogether.
7350 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
7351 specified in <certfile> by updating the entry in the index.txt file.
7352 This way one no longer has to edit the index.txt file manually for
7353 revoking a certificate. The -revoke option does the gory details now.
7354 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
7356 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
7357 `-text' option at all and this way the `-noout -text' combination was
7358 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
7359 [Ralf S. Engelschall]
7361 *) Make sure a corresponding plain text error message exists for the
7362 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
7363 verify callback function determined that a certificate was revoked.
7364 [Ralf S. Engelschall]
7366 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
7367 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
7368 all available cipers including rc5, which was forgotten until now.
7369 In order to let the testing shell script know which algorithms
7370 are available, a new (up to now undocumented) command
7371 "openssl list-cipher-commands" is used.
7374 *) Bugfix: s_client occasionally would sleep in select() when
7375 it should have checked SSL_pending() first.
7378 *) New functions DSA_do_sign and DSA_do_verify to provide access to
7379 the raw DSA values prior to ASN.1 encoding.
7382 *) Tweaks to Configure
7383 [Niels Poppe <niels@netbox.org>]
7385 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
7389 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
7392 *) New config option to avoid instructions that are illegal on the 80386.
7393 The default code is faster, but requires at least a 486.
7396 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
7397 SSL2_SERVER_VERSION (not used at all) macros, which are now the
7398 same as SSL2_VERSION anyway.
7401 *) New "-showcerts" option for s_client.
7404 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
7405 application. Various cleanups and fixes.
7408 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
7409 modify error routines to work internally. Add error codes and PBE init
7410 to library startup routines.
7413 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
7414 packing functions to asn1 and evp. Changed function names and error
7415 codes along the way.
7418 *) PKCS12 integration: and so it begins... First of several patches to
7419 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
7420 objects to objects.h
7423 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
7424 and display support for Thawte strong extranet extension.
7427 *) Add LinuxPPC support.
7428 [Jeff Dubrule <igor@pobox.org>]
7430 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
7431 bn_div_words in alpha.s.
7432 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
7434 *) Make sure the RSA OAEP test is skipped under -DRSAref because
7435 OAEP isn't supported when OpenSSL is built with RSAref.
7436 [Ulf Moeller <ulf@fitug.de>]
7438 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
7439 so they no longer are missing under -DNOPROTO.
7440 [Soren S. Jorvang <soren@t.dk>]
7443 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
7445 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
7446 doesn't work when the session is reused. Coming soon!
7449 *) Fix a security hole, that allows sessions to be reused in the wrong
7450 context thus bypassing client cert protection! All software that uses
7451 client certs and session caches in multiple contexts NEEDS PATCHING to
7452 allow session reuse! A fuller solution is in the works.
7453 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
7455 *) Some more source tree cleanups (removed obsolete files
7456 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
7457 permission on "config" script to be executable) and a fix for the INSTALL
7459 [Ulf Moeller <ulf@fitug.de>]
7461 *) Remove some legacy and erroneous uses of malloc, free instead of
7463 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
7465 *) Make rsa_oaep_test return non-zero on error.
7466 [Ulf Moeller <ulf@fitug.de>]
7468 *) Add support for native Solaris shared libraries. Configure
7469 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
7470 if someone would make that last step automatic.
7471 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
7473 *) ctx_size was not built with the right compiler during "make links". Fixed.
7476 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
7477 except NULL ciphers". This means the default cipher list will no longer
7478 enable NULL ciphers. They need to be specifically enabled e.g. with
7479 the string "DEFAULT:eNULL".
7482 *) Fix to RSA private encryption routines: if p < q then it would
7483 occasionally produce an invalid result. This will only happen with
7484 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
7487 *) Be less restrictive and allow also `perl util/perlpath.pl
7488 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
7489 because this way one can also use an interpreter named `perl5' (which is
7490 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
7491 installed as `perl').
7492 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7494 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
7495 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7497 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
7498 advapi32.lib to Win32 build and change the pem test comparision
7499 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
7500 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
7501 and crypto/des/ede_cbcm_enc.c.
7504 *) DES quad checksum was broken on big-endian architectures. Fixed.
7507 *) Comment out two functions in bio.h that aren't implemented. Fix up the
7508 Win32 test batch file so it (might) work again. The Win32 test batch file
7509 is horrible: I feel ill....
7512 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
7513 in e_os.h. Audit of header files to check ANSI and non ANSI
7514 sections: 10 functions were absent from non ANSI section and not exported
7515 from Windows DLLs. Fixed up libeay.num for new functions.
7518 *) Make `openssl version' output lines consistent.
7519 [Ralf S. Engelschall]
7521 *) Fix Win32 symbol export lists for BIO functions: Added
7522 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
7523 to ms/libeay{16,32}.def.
7524 [Ralf S. Engelschall]
7526 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
7527 fine under Unix and passes some trivial tests I've now added. But the
7528 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
7529 added to make sure no one expects that this stuff really works in the
7530 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
7531 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
7533 [Ralf S. Engelschall]
7535 *) Fix the generation of two part addresses in perl.
7536 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
7538 *) Add config entry for Linux on MIPS.
7539 [John Tobey <jtobey@channel1.com>]
7541 *) Make links whenever Configure is run, unless we are on Windoze.
7544 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
7545 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
7549 *) Add a useful kludge to allow package maintainers to specify compiler and
7550 other platforms details on the command line without having to patch the
7551 Configure script everytime: One now can use ``perl Configure
7552 <id>:<details>'', i.e. platform ids are allowed to have details appended
7553 to them (seperated by colons). This is treated as there would be a static
7554 pre-configured entry in Configure's %table under key <id> with value
7555 <details> and ``perl Configure <id>'' is called. So, when you want to
7556 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
7557 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
7558 now, which overrides the FreeBSD-elf entry on-the-fly.
7559 [Ralf S. Engelschall]
7561 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
7564 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
7565 on the `perl Configure ...' command line. This way one can compile
7566 OpenSSL libraries with Position Independent Code (PIC) which is needed
7567 for linking it into DSOs.
7568 [Ralf S. Engelschall]
7570 *) Remarkably, export ciphers were totally broken and no-one had noticed!
7574 *) Cleaned up the LICENSE document: The official contact for any license
7575 questions now is the OpenSSL core team under openssl-core@openssl.org.
7576 And add a paragraph about the dual-license situation to make sure people
7577 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
7578 to the OpenSSL toolkit.
7579 [Ralf S. Engelschall]
7581 *) General source tree makefile cleanups: Made `making xxx in yyy...'
7582 display consistent in the source tree and replaced `/bin/rm' by `rm'.
7583 Additonally cleaned up the `make links' target: Remove unnecessary
7584 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
7585 to speed processing and no longer clutter the display with confusing
7586 stuff. Instead only the actually done links are displayed.
7587 [Ralf S. Engelschall]
7589 *) Permit null encryption ciphersuites, used for authentication only. It used
7590 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
7591 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
7595 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
7596 signed attributes when verifying signatures (this would break them),
7597 the detached data encoding was wrong and public keys obtained using
7598 X509_get_pubkey() weren't freed.
7601 *) Add text documentation for the BUFFER functions. Also added a work around
7602 to a Win95 console bug. This was triggered by the password read stuff: the
7603 last character typed gets carried over to the next fread(). If you were
7604 generating a new cert request using 'req' for example then the last
7605 character of the passphrase would be CR which would then enter the first
7609 *) Added the new `Includes OpenSSL Cryptography Software' button as
7610 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
7611 button and can be used by applications based on OpenSSL to show the
7612 relationship to the OpenSSL project.
7613 [Ralf S. Engelschall]
7615 *) Remove confusing variables in function signatures in files
7616 ssl/ssl_lib.c and ssl/ssl.h.
7617 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7619 *) Don't install bss_file.c under PREFIX/include/
7620 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7622 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
7623 functions that return function pointers and has support for NT specific
7624 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
7625 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
7626 unsigned to signed types: this was killing the Win32 compile.
7629 *) Add new certificate file to stack functions,
7630 SSL_add_dir_cert_subjects_to_stack() and
7631 SSL_add_file_cert_subjects_to_stack(). These largely supplant
7632 SSL_load_client_CA_file(), and can be used to add multiple certs easily
7633 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
7634 This means that Apache-SSL and similar packages don't have to mess around
7635 to add as many CAs as they want to the preferred list.
7638 *) Experiment with doxygen documentation. Currently only partially applied to
7640 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
7641 openssl.doxy as the configuration file.
7644 *) Get rid of remaining C++-style comments which strict C compilers hate.
7645 [Ralf S. Engelschall, pointed out by Carlos Amengual]
7647 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
7648 compiled in by default: it has problems with large keys.
7651 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
7652 DH private keys and/or callback functions which directly correspond to
7653 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
7654 is needed for applications which have to configure certificates on a
7655 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
7657 For the RSA certificate situation is makes no difference, but
7658 for the DSA certificate situation this fixes the "no shared cipher"
7659 problem where the OpenSSL cipher selection procedure failed because the
7660 temporary keys were not overtaken from the context and the API provided
7661 no way to reconfigure them.
7662 The new functions now let applications reconfigure the stuff and they
7663 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
7664 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
7665 non-public-API function ssl_cert_instantiate() is used as a helper
7666 function and also to reduce code redundancy inside ssl_rsa.c.
7667 [Ralf S. Engelschall]
7669 *) Move s_server -dcert and -dkey options out of the undocumented feature
7670 area because they are useful for the DSA situation and should be
7671 recognized by the users.
7672 [Ralf S. Engelschall]
7674 *) Fix the cipher decision scheme for export ciphers: the export bits are
7675 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
7676 SSL_EXP_MASK. So, the original variable has to be used instead of the
7677 already masked variable.
7678 [Richard Levitte <levitte@stacken.kth.se>]
7680 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
7681 [Richard Levitte <levitte@stacken.kth.se>]
7683 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
7684 from `int' to `unsigned int' because it's a length and initialized by
7685 EVP_DigestFinal() which expects an `unsigned int *'.
7686 [Richard Levitte <levitte@stacken.kth.se>]
7688 *) Don't hard-code path to Perl interpreter on shebang line of Configure
7689 script. Instead use the usual Shell->Perl transition trick.
7690 [Ralf S. Engelschall]
7692 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
7693 (in addition to RSA certificates) to match the behaviour of `openssl dsa
7694 -noout -modulus' as it's already the case for `openssl rsa -noout
7695 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
7696 currently the public key is printed (a decision which was already done by
7697 `openssl dsa -modulus' in the past) which serves a similar purpose.
7698 Additionally the NO_RSA no longer completely removes the whole -modulus
7699 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
7701 [Ralf S. Engelschall]
7703 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
7704 BIO. See the source (crypto/evp/bio_ok.c) for more info.
7705 [Arne Ansper <arne@ats.cyber.ee>]
7707 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
7708 to be added. Now both 'req' and 'ca' can use new objects defined in the
7712 *) Add cool BIO that does syslog (or event log on NT).
7713 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
7715 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
7716 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
7717 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
7718 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
7721 *) Add preliminary config info for new extension code.
7724 *) Make RSA_NO_PADDING really use no padding.
7725 [Ulf Moeller <ulf@fitug.de>]
7727 *) Generate errors when private/public key check is done.
7730 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
7731 for some CRL extensions and new objects added.
7734 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
7735 key usage extension and fuller support for authority key id.
7738 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
7739 padding method for RSA, which is recommended for new applications in PKCS
7740 #1 v2.0 (RFC 2437, October 1998).
7741 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
7742 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
7743 against Bleichbacher's attack on RSA.
7744 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
7747 *) Updates to the new SSL compression code
7748 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7750 *) Fix so that the version number in the master secret, when passed
7751 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
7752 (because the server will not accept higher), that the version number
7753 is 0x03,0x01, not 0x03,0x00
7754 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7756 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
7757 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
7758 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
7761 *) Support for RAW extensions where an arbitrary extension can be
7762 created by including its DER encoding. See apps/openssl.cnf for
7766 *) Make sure latest Perl versions don't interpret some generated C array
7767 code as Perl array code in the crypto/err/err_genc.pl script.
7768 [Lars Weber <3weber@informatik.uni-hamburg.de>]
7770 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
7771 not many people have the assembler. Various Win32 compilation fixes and
7772 update to the INSTALL.W32 file with (hopefully) more accurate Win32
7776 *) Modify configure script 'Configure' to automatically create crypto/date.h
7777 file under Win32 and also build pem.h from pem.org. New script
7778 util/mkfiles.pl to create the MINFO file on environments that can't do a
7779 'make files': perl util/mkfiles.pl >MINFO should work.
7782 *) Major rework of DES function declarations, in the pursuit of correctness
7783 and purity. As a result, many evil casts evaporated, and some weirdness,
7784 too. You may find this causes warnings in your code. Zapping your evil
7785 casts will probably fix them. Mostly.
7788 *) Fix for a typo in asn1.h. Bug fix to object creation script
7789 obj_dat.pl. It considered a zero in an object definition to mean
7790 "end of object": none of the objects in objects.h have any zeros
7791 so it wasn't spotted.
7792 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
7794 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
7795 Masking (CBCM). In the absence of test vectors, the best I have been able
7796 to do is check that the decrypt undoes the encrypt, so far. Send me test
7797 vectors if you have them.
7800 *) Correct calculation of key length for export ciphers (too much space was
7801 allocated for null ciphers). This has not been tested!
7804 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
7805 message is now correct (it understands "crypto" and "ssl" on its
7806 command line). There is also now an "update" option. This will update
7807 the util/ssleay.num and util/libeay.num files with any new functions.
7809 perl util/mkdef.pl crypto ssl update
7810 it will update them.
7813 *) Overhauled the Perl interface (perl/*):
7814 - ported BN stuff to OpenSSL's different BN library
7815 - made the perl/ source tree CVS-aware
7816 - renamed the package from SSLeay to OpenSSL (the files still contain
7817 their history because I've copied them in the repository)
7818 - removed obsolete files (the test scripts will be replaced
7819 by better Test::Harness variants in the future)
7820 [Ralf S. Engelschall]
7822 *) First cut for a very conservative source tree cleanup:
7823 1. merge various obsolete readme texts into doc/ssleay.txt
7824 where we collect the old documents and readme texts.
7825 2. remove the first part of files where I'm already sure that we no
7826 longer need them because of three reasons: either they are just temporary
7827 files which were left by Eric or they are preserved original files where
7828 I've verified that the diff is also available in the CVS via "cvs diff
7829 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
7830 the crypto/md/ stuff).
7831 [Ralf S. Engelschall]
7833 *) More extension code. Incomplete support for subject and issuer alt
7834 name, issuer and authority key id. Change the i2v function parameters
7835 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
7836 what that's for :-) Fix to ASN1 macro which messed up
7837 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
7840 *) Preliminary support for ENUMERATED type. This is largely copied from the
7844 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
7845 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7847 *) Make sure `make rehash' target really finds the `openssl' program.
7848 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7850 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
7851 like to hear about it if this slows down other processors.
7854 *) Add CygWin32 platform information to Configure script.
7855 [Alan Batie <batie@aahz.jf.intel.com>]
7857 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
7858 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
7860 *) New program nseq to manipulate netscape certificate sequences
7863 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
7867 *) Fixes to BN code. Previously the default was to define BN_RECURSION
7868 but the BN code had some problems that would cause failures when
7869 doing certificate verification and some other functions.
7870 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7872 *) Add ASN1 and PEM code to support netscape certificate sequences.
7875 *) Add ASN1 and PEM code to support netscape certificate sequences.
7878 *) Add several PKIX and private extended key usage OIDs.
7881 *) Modify the 'ca' program to handle the new extension code. Modify
7882 openssl.cnf for new extension format, add comments.
7885 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
7886 and add a sample to openssl.cnf so req -x509 now adds appropriate
7890 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
7891 error code, add initial support to X509_print() and x509 application.
7894 *) Takes a deep breath and start addding X509 V3 extension support code. Add
7895 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
7896 stuff is currently isolated and isn't even compiled yet.
7899 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
7900 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
7901 Removed the versions check from X509 routines when loading extensions:
7902 this allows certain broken certificates that don't set the version
7903 properly to be processed.
7906 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
7907 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
7908 can still be regenerated with "make depend".
7911 *) Spelling mistake in C version of CAST-128.
7912 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
7914 *) Changes to the error generation code. The perl script err-code.pl
7915 now reads in the old error codes and retains the old numbers, only
7916 adding new ones if necessary. It also only changes the .err files if new
7917 codes are added. The makefiles have been modified to only insert errors
7918 when needed (to avoid needlessly modifying header files). This is done
7919 by only inserting errors if the .err file is newer than the auto generated
7920 C file. To rebuild all the error codes from scratch (the old behaviour)
7921 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
7922 or delete all the .err files.
7925 *) CAST-128 was incorrectly implemented for short keys. The C version has
7926 been fixed, but is untested. The assembler versions are also fixed, but
7927 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
7928 to regenerate it if needed.
7929 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
7930 Hagino <itojun@kame.net>]
7932 *) File was opened incorrectly in randfile.c.
7933 [Ulf Möller <ulf@fitug.de>]
7935 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
7936 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
7937 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
7938 al: it's just almost always a UTCTime. Note this patch adds new error
7939 codes so do a "make errors" if there are problems.
7942 *) Correct Linux 1 recognition in config.
7943 [Ulf Möller <ulf@fitug.de>]
7945 *) Remove pointless MD5 hash when using DSA keys in ca.
7946 [Anonymous <nobody@replay.com>]
7948 *) Generate an error if given an empty string as a cert directory. Also
7949 generate an error if handed NULL (previously returned 0 to indicate an
7950 error, but didn't set one).
7951 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
7953 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
7956 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
7957 parameters. This was causing a warning which killed off the Win32 compile.
7960 *) Remove C++ style comments from crypto/bn/bn_local.h.
7961 [Neil Costigan <neil.costigan@celocom.com>]
7963 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
7964 based on a text string, looking up short and long names and finally
7965 "dot" format. The "dot" format stuff didn't work. Added new function
7966 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
7967 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
7968 OID is not part of the table.
7971 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
7972 X509_LOOKUP_by_alias().
7975 *) Sort openssl functions by name.
7978 *) Get the gendsa program working (hopefully) and add it to app list. Remove
7979 encryption from sample DSA keys (in case anyone is interested the password
7983 *) Make _all_ *_free functions accept a NULL pointer.
7984 [Frans Heymans <fheymans@isaserver.be>]
7986 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
7988 [Anonymous <nobody@replay.com>]
7990 *) s_server should send the CAfile as acceptable CAs, not its own cert.
7991 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
7993 *) Don't blow it for numeric -newkey arguments to apps/req.
7994 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
7996 *) Temp key "for export" tests were wrong in s3_srvr.c.
7997 [Anonymous <nobody@replay.com>]
7999 *) Add prototype for temp key callback functions
8000 SSL_CTX_set_tmp_{rsa,dh}_callback().
8003 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
8004 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
8007 *) X509_name_add_entry() freed the wrong thing after an error.
8008 [Arne Ansper <arne@ats.cyber.ee>]
8010 *) rsa_eay.c would attempt to free a NULL context.
8011 [Arne Ansper <arne@ats.cyber.ee>]
8013 *) BIO_s_socket() had a broken should_retry() on Windoze.
8014 [Arne Ansper <arne@ats.cyber.ee>]
8016 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
8017 [Arne Ansper <arne@ats.cyber.ee>]
8019 *) Make sure the already existing X509_STORE->depth variable is initialized
8020 in X509_STORE_new(), but document the fact that this variable is still
8021 unused in the certificate verification process.
8022 [Ralf S. Engelschall]
8024 *) Fix the various library and apps files to free up pkeys obtained from
8025 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
8028 *) Fix reference counting in X509_PUBKEY_get(). This makes
8029 demos/maurice/example2.c work, amongst others, probably.
8030 [Steve Henson and Ben Laurie]
8032 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
8033 `openssl' and second, the shortcut symlinks for the `openssl <command>'
8034 are no longer created. This way we have a single and consistent command
8035 line interface `openssl <command>', similar to `cvs <command>'.
8036 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
8038 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
8039 BIT STRING wrapper always have zero unused bits.
8042 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
8045 *) Make the top-level INSTALL documentation easier to understand.
8048 *) Makefiles updated to exit if an error occurs in a sub-directory
8049 make (including if user presses ^C) [Paul Sutton]
8051 *) Make Montgomery context stuff explicit in RSA data structure.
8054 *) Fix build order of pem and err to allow for generated pem.h.
8057 *) Fix renumbering bug in X509_NAME_delete_entry().
8060 *) Enhanced the err-ins.pl script so it makes the error library number
8061 global and can add a library name. This is needed for external ASN1 and
8062 other error libraries.
8065 *) Fixed sk_insert which never worked properly.
8068 *) Fix ASN1 macros so they can handle indefinite length construted
8069 EXPLICIT tags. Some non standard certificates use these: they can now
8073 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
8074 into a single doc/ssleay.txt bundle. This way the information is still
8075 preserved but no longer messes up this directory. Now it's new room for
8076 the new set of documenation files.
8077 [Ralf S. Engelschall]
8079 *) SETs were incorrectly DER encoded. This was a major pain, because they
8080 shared code with SEQUENCEs, which aren't coded the same. This means that
8081 almost everything to do with SETs or SEQUENCEs has either changed name or
8082 number of arguments.
8083 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
8085 *) Fix test data to work with the above.
8088 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
8089 was already fixed by Eric for 0.9.1 it seems.
8090 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
8092 *) Autodetect FreeBSD3.
8095 *) Fix various bugs in Configure. This affects the following platforms:
8099 unixware-2.0-pentium
8103 *) Eliminate generated files from CVS. Reorder tests to regenerate files
8104 before they are needed.
8107 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
8111 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
8113 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
8114 changed SSLeay to OpenSSL in version strings.
8115 [Ralf S. Engelschall]
8117 *) Some fixups to the top-level documents.
8120 *) Fixed the nasty bug where rsaref.h was not found under compile-time
8121 because the symlink to include/ was missing.
8122 [Ralf S. Engelschall]
8124 *) Incorporated the popular no-RSA/DSA-only patches
8125 which allow to compile a RSA-free SSLeay.
8126 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
8128 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
8129 when "ssleay" is still not found.
8130 [Ralf S. Engelschall]
8132 *) Added more platforms to Configure: Cray T3E, HPUX 11,
8133 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
8135 *) Updated the README file.
8136 [Ralf S. Engelschall]
8138 *) Added various .cvsignore files in the CVS repository subdirs
8139 to make a "cvs update" really silent.
8140 [Ralf S. Engelschall]
8142 *) Recompiled the error-definition header files and added
8143 missing symbols to the Win32 linker tables.
8144 [Ralf S. Engelschall]
8146 *) Cleaned up the top-level documents;
8147 o new files: CHANGES and LICENSE
8148 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
8149 o merged COPYRIGHT into LICENSE
8150 o removed obsolete TODO file
8151 o renamed MICROSOFT to INSTALL.W32
8152 [Ralf S. Engelschall]
8154 *) Removed dummy files from the 0.9.1b source tree:
8155 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
8156 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
8157 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
8158 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
8159 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
8160 [Ralf S. Engelschall]
8162 *) Added various platform portability fixes.
8165 *) The Genesis of the OpenSSL rpject:
8166 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
8167 Young and Tim J. Hudson created while they were working for C2Net until
8169 [The OpenSSL Project]
8172 Changes between 0.9.0b and 0.9.1b [not released]
8174 *) Updated a few CA certificates under certs/
8177 *) Changed some BIGNUM api stuff.
8180 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
8181 DGUX x86, Linux Alpha, etc.
8184 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
8185 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
8189 *) Add -strparse option to asn1pars program which parses nested
8191 [Dr Stephen Henson <shenson@bigfoot.com>]
8193 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
8196 *) DSA fix for "ca" program.
8199 *) Added "-genkey" option to "dsaparam" program.
8202 *) Added RIPE MD160 (rmd160) message digest.
8205 *) Added -a (all) option to "ssleay version" command.
8208 *) Added PLATFORM define which is the id given to Configure.
8211 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
8214 *) Extended the ASN.1 parser routines.
8217 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
8220 *) Added a BN_CTX to the BN library.
8223 *) Fixed the weak key values in DES library
8226 *) Changed API in EVP library for cipher aliases.
8229 *) Added support for RC2/64bit cipher.
8232 *) Converted the lhash library to the crypto/mem.c functions.
8235 *) Added more recognized ASN.1 object ids.
8238 *) Added more RSA padding checks for SSL/TLS.
8241 *) Added BIO proxy/filter functionality.
8244 *) Added extra_certs to SSL_CTX which can be used
8245 send extra CA certificates to the client in the CA cert chain sending
8246 process. It can be configured with SSL_CTX_add_extra_chain_cert().
8249 *) Now Fortezza is denied in the authentication phase because
8250 this is key exchange mechanism is not supported by SSLeay at all.
8253 *) Additional PKCS1 checks.
8256 *) Support the string "TLSv1" for all TLS v1 ciphers.
8259 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
8260 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
8263 *) Fixed a few memory leaks.
8266 *) Fixed various code and comment typos.
8269 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
8270 bytes sent in the client random.
8271 [Edward Bishop <ebishop@spyglass.com>]
projects / oweals / openssl.git / blob