5 Changes between 0.9.8d and 0.9.9 [xx XXX xxxx]
7 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
8 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
10 *) Fix SSL client code which could crash if connecting to a
11 malicious SSLv2 server. (CVE-2006-4343)
12 [Tavis Ormandy and Will Drewry, Google Security Team]
14 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
15 to external functions. This can be used to increase CRL handling
16 efficiency especially when CRLs are very large by (for example) storing
17 the CRL revoked certificates in a database.
20 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
21 new CRLs added to a directory can be used. New command line option
22 -verify_return_error to s_client and s_server. This causes real errors
23 to be returned by the verify callback instead of carrying on no matter
24 what. This reflects the way a "real world" verify callback would behave.
27 *) GOST engine, supporting several GOST algorithms and public key formats.
28 Kindly donated by Cryptocom.
31 *) Partial support for Issuing Distribution Point CRL extension. CRLs
32 partitioned by DP are handled but no indirect CRL or reason partitioning
33 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
34 selected via a scoring technique which handles IDP and AKID in CRLs.
37 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
38 will ultimately be used for all verify operations: this will remove the
39 X509_STORE dependency on certificate verification and allow alternative
40 lookup methods. X509_STORE based implementations of these two callbacks.
43 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
44 Modify get_crl() to find a valid (unexpired) CRL if possible.
47 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
48 this would be called X509_CRL_cmp() but that name is already used by
49 a function that just compares CRL issuer names. Cache several CRL
50 extensions in X509_CRL structure and cache CRLDP in X509.
53 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
54 this maps equivalent X509_NAME structures into a consistent structure.
55 Name comparison can then be performed rapidly using memcmp().
58 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
62 *) Allow digests to supply their own micalg string for S/MIME type using
63 the ctrl EVP_MD_CTRL_MICALG.
66 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
67 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
68 ctrl. It can then customise the structure before and/or after signing
72 *) New function OBJ_add_sigid() to allow application defined signature OIDs
73 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
74 to free up any added signature OIDs.
77 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
78 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
79 digest and cipher tables. New options added to openssl utility:
80 list-message-digest-algorithms and list-cipher-algorithms.
83 *) In addition to the numerical (unsigned long) thread ID, provide
84 for a pointer (void *) thread ID. This helps accomodate systems
85 that do not provide an unsigned long thread ID. OpenSSL assumes
86 it is in the same thread iff both the numerical and the pointer
87 thread ID agree; so applications are just required to define one
88 of them appropriately (e.g., by using a pointer to a per-thread
89 memory object malloc()ed by the application for the pointer-type
90 thread ID). Exactly analoguous to the existing functions
92 void CRYPTO_set_id_callback(unsigned long (*func)(void));
93 unsigned long (*CRYPTO_get_id_callback(void))(void);
94 unsigned long CRYPTO_thread_id(void);
96 we now have additional functions
98 void CRYPTO_set_idptr_callback(void *(*func)(void));
99 void *(*CRYPTO_get_idptr_callback(void))(void);
100 void *CRYPTO_thread_idptr(void);
102 also in <openssl/crypto.h>. The default value for
103 CRYPTO_thread_idptr() if the application has not provided its own
107 *) Change the array representation of binary polynomials: the list
108 of degrees of non-zero coefficients is now terminated with -1.
109 Previously it was terminated with 0, which was also part of the
110 value; thus, the array representation was not applicable to
111 polynomials where t^0 has coefficient zero. This change makes
112 the array representation useful in a more general context.
115 *) Various modifications and fixes to SSL/TLS cipher string
116 handling. For ECC, the code now distinguishes between fixed ECDH
117 with RSA certificates on the one hand and with ECDSA certificates
118 on the other hand, since these are separate ciphersuites. The
119 unused code for Fortezza ciphersuites has been removed.
121 For consistency with EDH, ephemeral ECDH is now called "EECDH"
122 (not "ECDHE"). For consistency with the code for DH
123 certificates, use of ECDH certificates is now considered ECDH
124 authentication, not RSA or ECDSA authentication (the latter is
125 merely the CA's signing algorithm and not actively used in the
128 The temporary ciphersuite alias "ECCdraft" is no longer
129 available, and ECC ciphersuites are no longer excluded from "ALL"
130 and "DEFAULT". The following aliases now exist for RFC 4492
131 ciphersuites, most of these by analogy with the DH case:
133 kECDHr - ECDH cert, signed with RSA
134 kECDHe - ECDH cert, signed with ECDSA
135 kECDH - ECDH cert (signed with either RSA or ECDSA)
136 kEECDH - ephemeral ECDH
137 ECDH - ECDH cert or ephemeral ECDH
143 AECDH - anonymous ECDH
144 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
148 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
149 Use correct micalg parameters depending on digest(s) in signed message.
152 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
153 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
156 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
157 an engine to register a method. Add ENGINE lookups for methods and
158 functional reference processing.
161 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
162 EVP_{Sign,Verify}* which allow an application to customise the signature
166 *) New -resign option to smime utility. This adds one or more signers
167 to an existing PKCS#7 signedData structure. Also -md option to use an
168 alternative message digest algorithm for signing.
171 *) Tidy up PKCS#7 routines and add new functions to make it easier to
172 create PKCS7 structures containing multiple signers. Update smime
173 application to support multiple signers.
176 *) New -macalg option to pkcs12 utility to allow setting of an alternative
180 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
181 Reorganize PBE internals to lookup from a static table using NIDs,
182 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
183 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
184 PRF which will be automatically used with PBES2.
187 *) Replace the algorithm specific calls to generate keys in "req" with the
191 *) Update PKCS#7 enveloped data routines to use new API. This is now
192 supported by any public key method supporting the encrypt operation. A
193 ctrl is added to allow the public key algorithm to examine or modify
194 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
198 *) Add a ctrl to asn1 method to allow a public key algorithm to express
199 a default digest type to use. In most cases this will be SHA1 but some
200 algorithms (such as GOST) need to specify an alternative digest. The
201 return value indicates how strong the prefernce is 1 means optional and
202 2 is mandatory (that is it is the only supported type). Modify
203 ASN1_item_sign() to accept a NULL digest argument to indicate it should
204 use the default md. Update openssl utilities to use the default digest
205 type for signing if it is not explicitly indicated.
208 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
209 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
210 signing method from the key type. This effectively removes the link
211 between digests and public key types.
214 *) Add an OID cross reference table and utility functions. Its purpose is to
215 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
216 rsaEncryption. This will allow some of the algorithm specific hackery
217 needed to use the correct OID to be removed.
220 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
221 structures for PKCS7_sign(). They are now set up by the relevant public
225 *) Add provisional EC pkey method with support for ECDSA and ECDH.
228 *) Add support for key derivation (agreement) in the API, DH method and
232 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
233 public and private key formats. As a side effect these add additional
234 command line functionality not previously available: DSA signatures can be
235 generated and verified using pkeyutl and DH key support and generation in
240 [Oliver Tappe <zooey@hirschkaefer.de>]
242 *) New make target "install_html_docs" installs HTML renditions of the
244 [Oliver Tappe <zooey@hirschkaefer.de>]
246 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
247 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
248 support key and parameter generation and add initial key generation
249 functionality for RSA.
252 *) Add functions for main EVP_PKEY_method operations. The undocumented
253 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
254 EVP_PKEY_{encrypt,decrypt}_old.
257 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
258 key API, doesn't do much yet.
261 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
262 public key algorithms. New option to openssl utility:
263 "list-public-key-algorithms" to print out info.
266 *) Implement the Supported Elliptic Curves Extension for
267 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
270 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
271 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
274 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
275 utilities such as rsa, dsa, dsaparam etc except they process any key
279 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
280 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
281 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
285 *) Initial support for pluggable public key ASN1.
286 De-spaghettify the public key ASN1 handling. Move public and private
287 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
288 algorithm specific handling to a single module within the relevant
289 algorithm directory. Add functions to allow (near) opaque processing
290 of public and private key structures.
293 *) Implement the Supported Point Formats Extension for
294 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
297 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
298 for the psk identity [hint] and the psk callback functions to the
299 SSL_SESSION, SSL and SSL_CTX structure.
302 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
306 SSL_CTX_use_psk_identity_hint
307 SSL_get_psk_identity_hint
309 SSL_use_psk_identity_hint
311 [Mika Kousa and Pasi Eronen of Nokia Corporation]
313 *) Add RFC 3161 compliant time stamp request creation, response generation
314 and response verification functionality.
315 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
317 *) Add initial support for TLS extensions, specifically for the server_name
318 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
319 have new members for a host name. The SSL data structure has an
320 additional member SSL_CTX *initial_ctx so that new sessions can be
321 stored in that context to allow for session resumption, even after the
322 SSL has been switched to a new SSL_CTX in reaction to a client's
323 server_name extension.
325 New functions (subject to change):
328 SSL_get_servername_type()
331 New CTRL codes and macros (subject to change):
333 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
334 - SSL_CTX_set_tlsext_servername_callback()
335 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
336 - SSL_CTX_set_tlsext_servername_arg()
337 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_hostname()
339 openssl s_client has a new '-servername ...' option.
341 openssl s_server has new options '-servername_host ...', '-cert2 ...',
342 '-key2 ...', '-servername_fatal' (subject to change). This allows
343 testing the HostName extension for a specific single host name ('-cert'
344 and '-key' remain fallbacks for handshakes without HostName
345 negotiation). If the unrecogninzed_name alert has to be sent, this by
346 default is a warning; it becomes fatal with the '-servername_fatal'
349 [Peter Sylvester, Remy Allais, Christophe Renou]
351 *) Whirlpool hash implementation is added.
354 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
355 bn(64,32). Because of instruction set limitations it doesn't have
356 any negative impact on performance. This was done mostly in order
357 to make it possible to share assembler modules, such as bn_mul_mont
358 implementations, between 32- and 64-bit builds without hassle.
361 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
362 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
366 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
367 dedicated Montgomery multiplication procedure, is introduced.
368 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
369 "64-bit" performance on certain 32-bit targets.
372 *) New option SSL_OP_NO_COMP to disable use of compression selectively
373 in SSL structures. New SSL ctrl to set maximum send fragment size.
374 Save memory by seeting the I/O buffer sizes dynamically instead of
375 using the maximum available value.
378 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
379 in addition to the text details.
382 *) Very, very preliminary EXPERIMENTAL support for printing of general
383 ASN1 structures. This currently produces rather ugly output and doesn't
384 handle several customised structures at all.
387 *) Integrated support for PVK file format and some related formats such
388 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
389 these in the 'rsa' and 'dsa' utilities.
392 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
395 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
396 place for the (very old) "NETSCAPE" format certificates which are now
397 handled using new ASN1 code equivalents.
400 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
401 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
402 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
405 *) Modify CRL distribution points extension code to print out previously
406 unsupported fields. Enhance extension setting code to allow setting of
410 *) Add print and set support for Issuing Distribution Point CRL extension.
413 *) Change 'Configure' script to enable Camellia by default.
416 Changes between 0.9.8c and 0.9.8d [xx XXX xxxx]
418 *) Introduce limits to prevent malicious keys being able to
419 cause a denial of service. (CVE-2006-2940)
420 [Steve Henson, Bodo Moeller]
422 *) Fix ASN.1 parsing of certain invalid structures that can result
423 in a denial of service. (CVE-2006-2937) [Steve Henson]
425 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
426 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
428 *) Fix SSL client code which could crash if connecting to a
429 malicious SSLv2 server. (CVE-2006-4343)
430 [Tavis Ormandy and Will Drewry, Google Security Team]
432 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
433 match only those. Before that, "AES256-SHA" would be interpreted
434 as a pattern and match "AES128-SHA" too (since AES128-SHA got
435 the same strength classification in 0.9.7h) as we currently only
436 have a single AES bit in the ciphersuite description bitmap.
437 That change, however, also applied to ciphersuite strings such as
438 "RC4-MD5" that intentionally matched multiple ciphersuites --
439 namely, SSL 2.0 ciphersuites in addition to the more common ones
440 from SSL 3.0/TLS 1.0.
442 So we change the selection algorithm again: Naming an explicit
443 ciphersuite selects this one ciphersuite, and any other similar
444 ciphersuite (same bitmap) from *other* protocol versions.
445 Thus, "RC4-MD5" again will properly select both the SSL 2.0
446 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
448 Since SSL 2.0 does not have any ciphersuites for which the
449 128/256 bit distinction would be relevant, this works for now.
450 The proper fix will be to use different bits for AES128 and
451 AES256, which would have avoided the problems from the beginning;
452 however, bits are scarce, so we can only do this in a new release
453 (not just a patchlevel) when we can change the SSL_CIPHER
454 definition to split the single 'unsigned long mask' bitmap into
455 multiple values to extend the available space.
459 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
461 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
462 (CVE-2006-4339) [Ben Laurie and Google Security Team]
464 *) Add AES IGE and biIGE modes.
467 *) Change the Unix randomness entropy gathering to use poll() when
468 possible instead of select(), since the latter has some
469 undesirable limitations.
470 [Darryl Miles via Richard Levitte and Bodo Moeller]
472 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
473 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
474 cannot be implicitly activated as part of, e.g., the "AES" alias.
475 However, please upgrade to OpenSSL 0.9.9[-dev] for
476 non-experimental use of the ECC ciphersuites to get TLS extension
477 support, which is required for curve and point format negotiation
478 to avoid potential handshake problems.
481 *) Disable rogue ciphersuites:
483 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
484 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
485 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
487 The latter two were purportedly from
488 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
491 Also deactive the remaining ciphersuites from
492 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
493 unofficial, and the ID has long expired.
496 *) Fix RSA blinding Heisenbug (problems sometimes occured on
497 dual-core machines) and other potential thread-safety issues.
500 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
501 versions), which is now available for royalty-free use
502 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
503 Also, add Camellia TLS ciphersuites from RFC 4132.
505 To minimize changes between patchlevels in the OpenSSL 0.9.8
506 series, Camellia remains excluded from compilation unless OpenSSL
507 is configured with 'enable-camellia'.
510 *) Disable the padding bug check when compression is in use. The padding
511 bug check assumes the first packet is of even length, this is not
512 necessarily true if compresssion is enabled and can result in false
513 positives causing handshake failure. The actual bug test is ancient
514 code so it is hoped that implementations will either have fixed it by
515 now or any which still have the bug do not support compression.
518 Changes between 0.9.8a and 0.9.8b [04 May 2006]
520 *) When applying a cipher rule check to see if string match is an explicit
521 cipher suite and only match that one cipher suite if it is.
524 *) Link in manifests for VC++ if needed.
525 [Austin Ziegler <halostatue@gmail.com>]
527 *) Update support for ECC-based TLS ciphersuites according to
528 draft-ietf-tls-ecc-12.txt with proposed changes (but without
529 TLS extensions, which are supported starting with the 0.9.9
530 branch, not in the OpenSSL 0.9.8 branch).
533 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
534 opaque EVP_CIPHER_CTX handling.
537 *) Fixes and enhancements to zlib compression code. We now only use
538 "zlib1.dll" and use the default __cdecl calling convention on Win32
539 to conform with the standards mentioned here:
540 http://www.zlib.net/DLL_FAQ.txt
541 Static zlib linking now works on Windows and the new --with-zlib-include
542 --with-zlib-lib options to Configure can be used to supply the location
543 of the headers and library. Gracefully handle case where zlib library
547 *) Several fixes and enhancements to the OID generation code. The old code
548 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
549 handle numbers larger than ULONG_MAX, truncated printing and had a
550 non standard OBJ_obj2txt() behaviour.
553 *) Add support for building of engines under engine/ as shared libraries
554 under VC++ build system.
557 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
558 Hopefully, we will not see any false combination of paths any more.
561 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
563 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
564 (part of SSL_OP_ALL). This option used to disable the
565 countermeasure against man-in-the-middle protocol-version
566 rollback in the SSL 2.0 server implementation, which is a bad
567 idea. (CVE-2005-2969)
569 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
570 for Information Security, National Institute of Advanced Industrial
571 Science and Technology [AIST], Japan)]
573 *) Add two function to clear and return the verify parameter flags.
576 *) Keep cipherlists sorted in the source instead of sorting them at
577 runtime, thus removing the need for a lock.
580 *) Avoid some small subgroup attacks in Diffie-Hellman.
581 [Nick Mathewson and Ben Laurie]
583 *) Add functions for well-known primes.
586 *) Extended Windows CE support.
587 [Satoshi Nakamura and Andy Polyakov]
589 *) Initialize SSL_METHOD structures at compile time instead of during
590 runtime, thus removing the need for a lock.
593 *) Make PKCS7_decrypt() work even if no certificate is supplied by
594 attempting to decrypt each encrypted key in turn. Add support to
598 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
600 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
603 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
606 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
607 key into the same file any more.
610 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
613 *) Add -utf8 command line and config file option to 'ca'.
614 [Stefan <stf@udoma.org]
616 *) Removed the macro des_crypt(), as it seems to conflict with some
617 libraries. Use DES_crypt().
620 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
621 involves renaming the source and generated shared-libs for
622 both. The engines will accept the corrected or legacy ids
623 ('ncipher' and '4758_cca' respectively) when binding. NB,
624 this only applies when building 'shared'.
625 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
627 *) Add attribute functions to EVP_PKEY structure. Modify
628 PKCS12_create() to recognize a CSP name attribute and
629 use it. Make -CSP option work again in pkcs12 utility.
632 *) Add new functionality to the bn blinding code:
633 - automatic re-creation of the BN_BLINDING parameters after
634 a fixed number of uses (currently 32)
635 - add new function for parameter creation
636 - introduce flags to control the update behaviour of the
637 BN_BLINDING parameters
638 - hide BN_BLINDING structure
639 Add a second BN_BLINDING slot to the RSA structure to improve
640 performance when a single RSA object is shared among several
644 *) Add support for DTLS.
645 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
647 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
648 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
651 *) Remove buggy and incompletet DH cert support from
652 ssl/ssl_rsa.c and ssl/s3_both.c
655 *) Use SHA-1 instead of MD5 as the default digest algorithm for
656 the apps/openssl applications.
659 *) Compile clean with "-Wall -Wmissing-prototypes
660 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
661 DEBUG_SAFESTACK must also be set.
664 *) Change ./Configure so that certain algorithms can be disabled by default.
665 The new counterpiece to "no-xxx" is "enable-xxx".
667 The patented RC5 and MDC2 algorithms will now be disabled unless
668 "enable-rc5" and "enable-mdc2", respectively, are specified.
670 (IDEA remains enabled despite being patented. This is because IDEA
671 is frequently required for interoperability, and there is no license
672 fee for non-commercial use. As before, "no-idea" can be used to
673 avoid this algorithm.)
677 *) Add processing of proxy certificates (see RFC 3820). This work was
678 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
679 EGEE (Enabling Grids for E-science in Europe).
682 *) RC4 performance overhaul on modern architectures/implementations, such
683 as Intel P4, IA-64 and AMD64.
686 *) New utility extract-section.pl. This can be used specify an alternative
687 section number in a pod file instead of having to treat each file as
688 a separate case in Makefile. This can be done by adding two lines to the
691 =for comment openssl_section:XXX
693 The blank line is mandatory.
697 *) New arguments -certform, -keyform and -pass for s_client and s_server
698 to allow alternative format key and certificate files and passphrase
702 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
703 update associated structures and add various utility functions.
705 Add new policy related verify parameters, include policy checking in
706 standard verify code. Enhance 'smime' application with extra parameters
707 to support policy checking and print out.
710 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
711 Nehemiah processors. These extensions support AES encryption in hardware
712 as well as RNG (though RNG support is currently disabled).
713 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
715 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
718 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
719 [Andy Polyakov and a number of other people]
721 *) Improved PowerPC platform support. Most notably BIGNUM assembler
722 implementation contributed by IBM.
723 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
725 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
726 exponent rather than 'unsigned long'. There is a corresponding change to
727 the new 'rsa_keygen' element of the RSA_METHOD structure.
728 [Jelte Jansen, Geoff Thorpe]
730 *) Functionality for creating the initial serial number file is now
731 moved from CA.pl to the 'ca' utility with a new option -create_serial.
733 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
734 number file to 1, which is bound to cause problems. To avoid
735 the problems while respecting compatibility between different 0.9.7
736 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
737 CA.pl for serial number initialization. With the new release 0.9.8,
738 we can fix the problem directly in the 'ca' utility.)
741 *) Reduced header interdepencies by declaring more opaque objects in
742 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
743 give fewer recursive includes, which could break lazy source code - so
744 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
745 developers should define this symbol when building and using openssl to
746 ensure they track the recommended behaviour, interfaces, [etc], but
747 backwards-compatible behaviour prevails when this isn't defined.
750 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
753 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
754 This will generate a random key of the appropriate length based on the
755 cipher context. The EVP_CIPHER can provide its own random key generation
756 routine to support keys of a specific form. This is used in the des and
757 3des routines to generate a key of the correct parity. Update S/MIME
758 code to use new functions and hence generate correct parity DES keys.
759 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
760 valid (weak or incorrect parity).
763 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
764 as looking them up. This is useful when the verified structure may contain
765 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
766 present unless the new PKCS7_NO_CRL flag is asserted.
769 *) Extend ASN1 oid configuration module. It now additionally accepts the
772 shortName = some long name, 1.2.3.4
775 *) Reimplemented the BN_CTX implementation. There is now no more static
776 limitation on the number of variables it can handle nor the depth of the
777 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
778 information can now expand as required, and rather than having a single
779 static array of bignums, BN_CTX now uses a linked-list of such arrays
780 allowing it to expand on demand whilst maintaining the usefulness of
784 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
785 to allow all RSA operations to function using a single BN_CTX.
788 *) Preliminary support for certificate policy evaluation and checking. This
789 is initially intended to pass the tests outlined in "Conformance Testing
790 of Relying Party Client Certificate Path Processing Logic" v1.07.
793 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
794 remained unused and not that useful. A variety of other little bignum
795 tweaks and fixes have also been made continuing on from the audit (see
799 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
800 associated ASN1, EVP and SSL functions and old ASN1 macros.
803 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
804 and this should never fail. So the return value from the use of
805 BN_set_word() (which can fail due to needless expansion) is now deprecated;
806 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
809 *) BN_CTX_get() should return zero-valued bignums, providing the same
810 initialised value as BN_new().
811 [Geoff Thorpe, suggested by Ulf Möller]
813 *) Support for inhibitAnyPolicy certificate extension.
816 *) An audit of the BIGNUM code is underway, for which debugging code is
817 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
818 is considered valid when processing BIGNUMs, and causes execution to
819 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
820 further steps are taken to deliberately pollute unused data in BIGNUM
821 structures to try and expose faulty code further on. For now, openssl will
822 (in its default mode of operation) continue to tolerate the inconsistent
823 forms that it has tolerated in the past, but authors and packagers should
824 consider trying openssl and their own applications when compiled with
825 these debugging symbols defined. It will help highlight potential bugs in
826 their own code, and will improve the test coverage for OpenSSL itself. At
827 some point, these tighter rules will become openssl's default to improve
828 maintainability, though the assert()s and other overheads will remain only
829 in debugging configurations. See bn.h for more details.
830 [Geoff Thorpe, Nils Larsch, Ulf Möller]
832 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
833 that can only be obtained through BN_CTX_new() (which implicitly
834 initialises it). The presence of this function only made it possible
835 to overwrite an existing structure (and cause memory leaks).
838 *) Because of the callback-based approach for implementing LHASH as a
839 template type, lh_insert() adds opaque objects to hash-tables and
840 lh_doall() or lh_doall_arg() are typically used with a destructor callback
841 to clean up those corresponding objects before destroying the hash table
842 (and losing the object pointers). So some over-zealous constifications in
843 LHASH have been relaxed so that lh_insert() does not take (nor store) the
844 objects as "const" and the lh_doall[_arg] callback wrappers are not
845 prototyped to have "const" restrictions on the object pointers they are
846 given (and so aren't required to cast them away any more).
849 *) The tmdiff.h API was so ugly and minimal that our own timing utility
850 (speed) prefers to use its own implementation. The two implementations
851 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
852 its object type properly exposed (MS_TM) instead of casting to/from "char
853 *". This may still change yet if someone realises MS_TM and "ms_time_***"
854 aren't necessarily the greatest nomenclatures - but this is what was used
855 internally to the implementation so I've used that for now.
858 *) Ensure that deprecated functions do not get compiled when
859 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
860 the self-tests were still using deprecated key-generation functions so
861 these have been updated also.
864 *) Reorganise PKCS#7 code to separate the digest location functionality
865 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
866 New function PKCS7_set_digest() to set the digest type for PKCS#7
867 digestedData type. Add additional code to correctly generate the
868 digestedData type and add support for this type in PKCS7 initialization
872 *) New function PKCS7_set0_type_other() this initializes a PKCS7
873 structure of type "other".
876 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
877 sure the loop does correctly stop and breaking ("division by zero")
878 modulus operations are not performed. The (pre-generated) prime
879 table crypto/bn/bn_prime.h was already correct, but it could not be
880 re-generated on some platforms because of the "division by zero"
881 situation in the script.
882 [Ralf S. Engelschall]
884 *) Update support for ECC-based TLS ciphersuites according to
885 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
886 SHA-1 now is only used for "small" curves (where the
887 representation of a field element takes up to 24 bytes); for
888 larger curves, the field element resulting from ECDH is directly
889 used as premaster secret.
890 [Douglas Stebila (Sun Microsystems Laboratories)]
892 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
893 curve secp160r1 to the tests.
894 [Douglas Stebila (Sun Microsystems Laboratories)]
896 *) Add the possibility to load symbols globally with DSO.
897 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
899 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
900 control of the error stack.
903 *) Add support for STORE in ENGINE.
906 *) Add the STORE type. The intention is to provide a common interface
907 to certificate and key stores, be they simple file-based stores, or
908 HSM-type store, or LDAP stores, or...
909 NOTE: The code is currently UNTESTED and isn't really used anywhere.
912 *) Add a generic structure called OPENSSL_ITEM. This can be used to
913 pass a list of arguments to any function as well as provide a way
914 for a function to pass data back to the caller.
917 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
918 works like BUF_strdup() but can be used to duplicate a portion of
919 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
923 *) Add the function sk_find_ex() which works like sk_find(), but will
924 return an index to an element even if an exact match couldn't be
925 found. The index is guaranteed to point at the element where the
926 searched-for key would be inserted to preserve sorting order.
929 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
930 takes an extra flags argument for optional functionality. Currently,
931 the following flags are defined:
933 OBJ_BSEARCH_VALUE_ON_NOMATCH
934 This one gets OBJ_bsearch_ex() to return a pointer to the first
935 element where the comparing function returns a negative or zero
938 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
939 This one gets OBJ_bsearch_ex() to return a pointer to the first
940 element where the comparing function returns zero. This is useful
941 if there are more than one element where the comparing function
945 *) Make it possible to create self-signed certificates with 'openssl ca'
946 in such a way that the self-signed certificate becomes part of the
947 CA database and uses the same mechanisms for serial number generation
948 as all other certificate signing. The new flag '-selfsign' enables
949 this functionality. Adapt CA.sh and CA.pl.in.
952 *) Add functionality to check the public key of a certificate request
953 against a given private. This is useful to check that a certificate
954 request can be signed by that key (self-signing).
957 *) Make it possible to have multiple active certificates with the same
958 subject in the CA index file. This is done only if the keyword
959 'unique_subject' is set to 'no' in the main CA section (default
960 if 'CA_default') of the configuration file. The value is saved
961 with the database itself in a separate index attribute file,
962 named like the index file with '.attr' appended to the name.
965 *) Generate muti valued AVAs using '+' notation in config files for
969 *) Support for nameConstraints certificate extension.
972 *) Support for policyConstraints certificate extension.
975 *) Support for policyMappings certificate extension.
978 *) Make sure the default DSA_METHOD implementation only uses its
979 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
980 and change its own handlers to be NULL so as to remove unnecessary
981 indirection. This lets alternative implementations fallback to the
982 default implementation more easily.
985 *) Support for directoryName in GeneralName related extensions
989 *) Make it possible to link applications using Makefile.shared.
990 Make that possible even when linking against static libraries!
993 *) Support for single pass processing for S/MIME signing. This now
994 means that S/MIME signing can be done from a pipe, in addition
995 cleartext signing (multipart/signed type) is effectively streaming
996 and the signed data does not need to be all held in memory.
998 This is done with a new flag PKCS7_STREAM. When this flag is set
999 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
1000 is done after the data is output (and digests calculated) in
1001 SMIME_write_PKCS7().
1004 *) Add full support for -rpath/-R, both in shared libraries and
1005 applications, at least on the platforms where it's known how
1009 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
1010 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
1011 will now compute a table of multiples of the generator that
1012 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
1013 faster (notably in the case of a single point multiplication,
1014 scalar * generator).
1015 [Nils Larsch, Bodo Moeller]
1017 *) IPv6 support for certificate extensions. The various extensions
1018 which use the IP:a.b.c.d can now take IPv6 addresses using the
1019 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
1023 *) Added an ENGINE that implements RSA by performing private key
1024 exponentiations with the GMP library. The conversions to and from
1025 GMP's mpz_t format aren't optimised nor are any montgomery forms
1026 cached, and on x86 it appears OpenSSL's own performance has caught up.
1027 However there are likely to be other architectures where GMP could
1028 provide a boost. This ENGINE is not built in by default, but it can be
1029 specified at Configure time and should be accompanied by the necessary
1030 linker additions, eg;
1031 ./config -DOPENSSL_USE_GMP -lgmp
1034 *) "openssl engine" will not display ENGINE/DSO load failure errors when
1035 testing availability of engines with "-t" - the old behaviour is
1036 produced by increasing the feature's verbosity with "-tt".
1039 *) ECDSA routines: under certain error conditions uninitialized BN objects
1040 could be freed. Solution: make sure initialization is performed early
1041 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
1045 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
1046 and DH_METHOD (eg. by ENGINE implementations) to override the normal
1047 software implementations. For DSA and DH, parameter generation can
1048 also be overriden by providing the appropriate method callbacks.
1051 *) Change the "progress" mechanism used in key-generation and
1052 primality testing to functions that take a new BN_GENCB pointer in
1053 place of callback/argument pairs. The new API functions have "_ex"
1054 postfixes and the older functions are reimplemented as wrappers for
1055 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
1056 declarations of the old functions to help (graceful) attempts to
1057 migrate to the new functions. Also, the new key-generation API
1058 functions operate on a caller-supplied key-structure and return
1059 success/failure rather than returning a key or NULL - this is to
1060 help make "keygen" another member function of RSA_METHOD etc.
1062 Example for using the new callback interface:
1064 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
1068 BN_GENCB_set(&my_cb, my_callback, my_arg);
1070 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
1071 /* For the meaning of a, b in calls to my_callback(), see the
1072 * documentation of the function that calls the callback.
1073 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
1074 * my_callback should return 1 if it wants BN_is_prime_ex()
1075 * to continue, or 0 to stop.
1080 *) Change the ZLIB compression method to be stateful, and make it
1081 available to TLS with the number defined in
1082 draft-ietf-tls-compression-04.txt.
1085 *) Add the ASN.1 structures and functions for CertificatePair, which
1086 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
1088 CertificatePair ::= SEQUENCE {
1089 forward [0] Certificate OPTIONAL,
1090 reverse [1] Certificate OPTIONAL,
1091 -- at least one of the pair shall be present -- }
1093 Also implement the PEM functions to read and write certificate
1094 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
1096 This needed to be defined, mostly for the sake of the LDAP
1097 attribute crossCertificatePair, but may prove useful elsewhere as
1101 *) Make it possible to inhibit symlinking of shared libraries in
1102 Makefile.shared, for Cygwin's sake.
1105 *) Extend the BIGNUM API by creating a function
1106 void BN_set_negative(BIGNUM *a, int neg);
1107 and a macro that behave like
1108 int BN_is_negative(const BIGNUM *a);
1110 to avoid the need to access 'a->neg' directly in applications.
1113 *) Implement fast modular reduction for pseudo-Mersenne primes
1114 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
1115 EC_GROUP_new_curve_GFp() will now automatically use this
1117 [Nils Larsch <nla@trustcenter.de>]
1119 *) Add new lock type (CRYPTO_LOCK_BN).
1122 *) Change the ENGINE framework to automatically load engines
1123 dynamically from specific directories unless they could be
1124 found to already be built in or loaded. Move all the
1125 current engines except for the cryptodev one to a new
1127 The engines in engines/ are built as shared libraries if
1128 the "shared" options was given to ./Configure or ./config.
1129 Otherwise, they are inserted in libcrypto.a.
1130 /usr/local/ssl/engines is the default directory for dynamic
1131 engines, but that can be overriden at configure time through
1132 the usual use of --prefix and/or --openssldir, and at run
1133 time with the environment variable OPENSSL_ENGINES.
1134 [Geoff Thorpe and Richard Levitte]
1136 *) Add Makefile.shared, a helper makefile to build shared
1137 libraries. Addapt Makefile.org.
1140 *) Add version info to Win32 DLLs.
1141 [Peter 'Luna' Runestig" <peter@runestig.com>]
1143 *) Add new 'medium level' PKCS#12 API. Certificates and keys
1144 can be added using this API to created arbitrary PKCS#12
1145 files while avoiding the low level API.
1147 New options to PKCS12_create(), key or cert can be NULL and
1148 will then be omitted from the output file. The encryption
1149 algorithm NIDs can be set to -1 for no encryption, the mac
1150 iteration count can be set to 0 to omit the mac.
1152 Enhance pkcs12 utility by making the -nokeys and -nocerts
1153 options work when creating a PKCS#12 file. New option -nomac
1154 to omit the mac, NONE can be set for an encryption algorithm.
1155 New code is modified to use the enhanced PKCS12_create()
1156 instead of the low level API.
1159 *) Extend ASN1 encoder to support indefinite length constructed
1160 encoding. This can output sequences tags and octet strings in
1161 this form. Modify pk7_asn1.c to support indefinite length
1162 encoding. This is experimental and needs additional code to
1163 be useful, such as an ASN1 bio and some enhanced streaming
1166 Extend template encode functionality so that tagging is passed
1167 down to the template encoder.
1170 *) Let 'openssl req' fail if an argument to '-newkey' is not
1171 recognized instead of using RSA as a default.
1174 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
1175 As these are not official, they are not included in "ALL";
1176 the "ECCdraft" ciphersuite group alias can be used to select them.
1177 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
1179 *) Add ECDH engine support.
1180 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
1182 *) Add ECDH in new directory crypto/ecdh/.
1183 [Douglas Stebila (Sun Microsystems Laboratories)]
1185 *) Let BN_rand_range() abort with an error after 100 iterations
1186 without success (which indicates a broken PRNG).
1189 *) Change BN_mod_sqrt() so that it verifies that the input value
1190 is really the square of the return value. (Previously,
1191 BN_mod_sqrt would show GIGO behaviour.)
1194 *) Add named elliptic curves over binary fields from X9.62, SECG,
1195 and WAP/WTLS; add OIDs that were still missing.
1197 [Sheueling Chang Shantz and Douglas Stebila
1198 (Sun Microsystems Laboratories)]
1200 *) Extend the EC library for elliptic curves over binary fields
1201 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
1204 EC_GF2m_simple_method
1208 EC_GROUP_new_curve_GF2m
1209 EC_GROUP_set_curve_GF2m
1210 EC_GROUP_get_curve_GF2m
1211 EC_POINT_set_affine_coordinates_GF2m
1212 EC_POINT_get_affine_coordinates_GF2m
1213 EC_POINT_set_compressed_coordinates_GF2m
1215 Point compression for binary fields is disabled by default for
1216 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
1219 As binary polynomials are represented as BIGNUMs, various members
1220 of the EC_GROUP and EC_POINT data structures can be shared
1221 between the implementations for prime fields and binary fields;
1222 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
1223 are essentially identical to their ..._GFp counterparts.
1224 (For simplicity, the '..._GFp' prefix has been dropped from
1225 various internal method names.)
1227 An internal 'field_div' method (similar to 'field_mul' and
1228 'field_sqr') has been added; this is used only for binary fields.
1230 [Sheueling Chang Shantz and Douglas Stebila
1231 (Sun Microsystems Laboratories)]
1233 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
1234 through methods ('mul', 'precompute_mult').
1236 The generic implementations (now internally called 'ec_wNAF_mul'
1237 and 'ec_wNAF_precomputed_mult') remain the default if these
1238 methods are undefined.
1240 [Sheueling Chang Shantz and Douglas Stebila
1241 (Sun Microsystems Laboratories)]
1243 *) New function EC_GROUP_get_degree, which is defined through
1244 EC_METHOD. For curves over prime fields, this returns the bit
1245 length of the modulus.
1247 [Sheueling Chang Shantz and Douglas Stebila
1248 (Sun Microsystems Laboratories)]
1250 *) New functions EC_GROUP_dup, EC_POINT_dup.
1251 (These simply call ..._new and ..._copy).
1253 [Sheueling Chang Shantz and Douglas Stebila
1254 (Sun Microsystems Laboratories)]
1256 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
1257 Polynomials are represented as BIGNUMs (where the sign bit is not
1258 used) in the following functions [macros]:
1261 BN_GF2m_sub [= BN_GF2m_add]
1262 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
1263 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
1264 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
1266 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
1267 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
1268 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
1269 BN_GF2m_cmp [= BN_ucmp]
1271 (Note that only the 'mod' functions are actually for fields GF(2^m).
1272 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
1274 For some functions, an the irreducible polynomial defining a
1275 field can be given as an 'unsigned int[]' with strictly
1276 decreasing elements giving the indices of those bits that are set;
1277 i.e., p[] represents the polynomial
1278 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
1280 p[0] > p[1] > ... > p[k] = 0.
1281 This applies to the following functions:
1286 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
1287 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
1289 BN_GF2m_mod_sqrt_arr
1290 BN_GF2m_mod_solve_quad_arr
1294 Conversion can be performed by the following functions:
1299 bntest.c has additional tests for binary polynomial arithmetic.
1301 Two implementations for BN_GF2m_mod_div() are available.
1302 The default algorithm simply uses BN_GF2m_mod_inv() and
1303 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
1304 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
1305 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
1307 [Sheueling Chang Shantz and Douglas Stebila
1308 (Sun Microsystems Laboratories)]
1310 *) Add new error code 'ERR_R_DISABLED' that can be used when some
1311 functionality is disabled at compile-time.
1312 [Douglas Stebila <douglas.stebila@sun.com>]
1314 *) Change default behaviour of 'openssl asn1parse' so that more
1315 information is visible when viewing, e.g., a certificate:
1317 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
1318 mode the content of non-printable OCTET STRINGs is output in a
1319 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
1320 avoid the appearance of a printable string.
1321 [Nils Larsch <nla@trustcenter.de>]
1323 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
1325 EC_GROUP_set_asn1_flag()
1326 EC_GROUP_get_asn1_flag()
1327 EC_GROUP_set_point_conversion_form()
1328 EC_GROUP_get_point_conversion_form()
1329 These control ASN1 encoding details:
1330 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
1331 has been set to OPENSSL_EC_NAMED_CURVE.
1332 - Points are encoded in uncompressed form by default; options for
1333 asn1_for are as for point2oct, namely
1334 POINT_CONVERSION_COMPRESSED
1335 POINT_CONVERSION_UNCOMPRESSED
1336 POINT_CONVERSION_HYBRID
1338 Also add 'seed' and 'seed_len' members to EC_GROUP with access
1341 EC_GROUP_get0_seed()
1342 EC_GROUP_get_seed_len()
1343 This is used only for ASN1 purposes (so far).
1344 [Nils Larsch <nla@trustcenter.de>]
1346 *) Add 'field_type' member to EC_METHOD, which holds the NID
1347 of the appropriate field type OID. The new function
1348 EC_METHOD_get_field_type() returns this value.
1349 [Nils Larsch <nla@trustcenter.de>]
1354 EC_POINT_point2hex()
1355 EC_POINT_hex2point()
1356 providing useful interfaces to EC_POINT_point2oct() and
1357 EC_POINT_oct2point().
1358 [Nils Larsch <nla@trustcenter.de>]
1360 *) Change internals of the EC library so that the functions
1361 EC_GROUP_set_generator()
1362 EC_GROUP_get_generator()
1363 EC_GROUP_get_order()
1364 EC_GROUP_get_cofactor()
1365 are implemented directly in crypto/ec/ec_lib.c and not dispatched
1366 to methods, which would lead to unnecessary code duplication when
1367 adding different types of curves.
1368 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
1370 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
1371 arithmetic, and such that modified wNAFs are generated
1372 (which avoid length expansion in many cases).
1375 *) Add a function EC_GROUP_check_discriminant() (defined via
1376 EC_METHOD) that verifies that the curve discriminant is non-zero.
1378 Add a function EC_GROUP_check() that makes some sanity tests
1379 on a EC_GROUP, its generator and order. This includes
1380 EC_GROUP_check_discriminant().
1381 [Nils Larsch <nla@trustcenter.de>]
1383 *) Add ECDSA in new directory crypto/ecdsa/.
1385 Add applications 'openssl ecparam' and 'openssl ecdsa'
1386 (these are based on 'openssl dsaparam' and 'openssl dsa').
1388 ECDSA support is also included in various other files across the
1389 library. Most notably,
1390 - 'openssl req' now has a '-newkey ecdsa:file' option;
1391 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
1392 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
1393 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
1394 them suitable for ECDSA where domain parameters must be
1395 extracted before the specific public key;
1396 - ECDSA engine support has been added.
1397 [Nils Larsch <nla@trustcenter.de>]
1399 *) Include some named elliptic curves, and add OIDs from X9.62,
1400 SECG, and WAP/WTLS. Each curve can be obtained from the new
1402 EC_GROUP_new_by_curve_name(),
1403 and the list of available named curves can be obtained with
1404 EC_get_builtin_curves().
1405 Also add a 'curve_name' member to EC_GROUP objects, which can be
1407 EC_GROUP_set_curve_name()
1408 EC_GROUP_get_curve_name()
1409 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
1411 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
1412 was actually never needed) and in BN_mul(). The removal in BN_mul()
1413 required a small change in bn_mul_part_recursive() and the addition
1414 of the functions bn_cmp_part_words(), bn_sub_part_words() and
1415 bn_add_part_words(), which do the same thing as bn_cmp_words(),
1416 bn_sub_words() and bn_add_words() except they take arrays with
1420 Changes between 0.9.7k and 0.9.7l [xx XXX xxxx]
1422 *) Change ciphersuite string processing so that an explicit
1423 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
1424 will no longer include "AES128-SHA"), and any other similar
1425 ciphersuite (same bitmap) from *other* protocol versions (so that
1426 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
1427 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
1428 changes from 0.9.8b and 0.9.8d.
1431 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
1433 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1434 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1436 *) Change the Unix randomness entropy gathering to use poll() when
1437 possible instead of select(), since the latter has some
1438 undesirable limitations.
1439 [Darryl Miles via Richard Levitte and Bodo Moeller]
1441 *) Disable rogue ciphersuites:
1443 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1444 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1445 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1447 The latter two were purportedly from
1448 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1451 Also deactive the remaining ciphersuites from
1452 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1453 unofficial, and the ID has long expired.
1456 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1457 dual-core machines) and other potential thread-safety issues.
1460 Changes between 0.9.7i and 0.9.7j [04 May 2006]
1462 *) Adapt fipsld and the build system to link against the validated FIPS
1463 module in FIPS mode.
1466 *) Fixes for VC++ 2005 build under Windows.
1469 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
1470 from a Windows bash shell such as MSYS. It is autodetected from the
1471 "config" script when run from a VC++ environment. Modify standard VC++
1472 build to use fipscanister.o from the GNU make build.
1475 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
1477 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
1478 The value now differs depending on if you build for FIPS or not.
1479 BEWARE! A program linked with a shared FIPSed libcrypto can't be
1480 safely run with a non-FIPSed libcrypto, as it may crash because of
1481 the difference induced by this change.
1484 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
1486 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1487 (part of SSL_OP_ALL). This option used to disable the
1488 countermeasure against man-in-the-middle protocol-version
1489 rollback in the SSL 2.0 server implementation, which is a bad
1490 idea. (CVE-2005-2969)
1492 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1493 for Information Security, National Institute of Advanced Industrial
1494 Science and Technology [AIST], Japan)]
1496 *) Minimal support for X9.31 signatures and PSS padding modes. This is
1497 mainly for FIPS compliance and not fully integrated at this stage.
1500 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
1501 the exponentiation using a fixed-length exponent. (Otherwise,
1502 the information leaked through timing could expose the secret key
1503 after many signatures; cf. Bleichenbacher's attack on DSA with
1507 *) Make a new fixed-window mod_exp implementation the default for
1508 RSA, DSA, and DH private-key operations so that the sequence of
1509 squares and multiplies and the memory access pattern are
1510 independent of the particular secret key. This will mitigate
1511 cache-timing and potential related attacks.
1513 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
1514 and this is automatically used by BN_mod_exp_mont() if the new flag
1515 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
1516 will use this BN flag for private exponents unless the flag
1517 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
1518 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
1520 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
1522 *) Change the client implementation for SSLv23_method() and
1523 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
1524 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
1525 (Previously, the SSL 2.0 backwards compatible Client Hello
1526 message format would be used even with SSL_OP_NO_SSLv2.)
1529 *) Add support for smime-type MIME parameter in S/MIME messages which some
1533 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
1534 a threadsafe manner. Modify rsa code to use new function and add calls
1535 to dsa and dh code (which had race conditions before).
1538 *) Include the fixed error library code in the C error file definitions
1539 instead of fixing them up at runtime. This keeps the error code
1540 structures constant.
1543 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
1545 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
1548 *) Fixes for newer kerberos headers. NB: the casts are needed because
1549 the 'length' field is signed on one version and unsigned on another
1550 with no (?) obvious way to tell the difference, without these VC++
1551 complains. Also the "definition" of FAR (blank) is no longer included
1552 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
1553 some needed definitions.
1556 *) Undo Cygwin change.
1559 *) Added support for proxy certificates according to RFC 3820.
1560 Because they may be a security thread to unaware applications,
1561 they must be explicitely allowed in run-time. See
1562 docs/HOWTO/proxy_certificates.txt for further information.
1565 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
1567 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
1568 server and client random values. Previously
1569 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
1570 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
1572 This change has negligible security impact because:
1574 1. Server and client random values still have 24 bytes of pseudo random
1577 2. Server and client random values are sent in the clear in the initial
1580 3. The master secret is derived using the premaster secret (48 bytes in
1581 size for static RSA ciphersuites) as well as client server and random
1584 The OpenSSL team would like to thank the UK NISCC for bringing this issue
1587 [Stephen Henson, reported by UK NISCC]
1589 *) Use Windows randomness collection on Cygwin.
1592 *) Fix hang in EGD/PRNGD query when communication socket is closed
1593 prematurely by EGD/PRNGD.
1594 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
1596 *) Prompt for pass phrases when appropriate for PKCS12 input format.
1599 *) Back-port of selected performance improvements from development
1600 branch, as well as improved support for PowerPC platforms.
1603 *) Add lots of checks for memory allocation failure, error codes to indicate
1604 failure and freeing up memory if a failure occurs.
1605 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
1607 *) Add new -passin argument to dgst.
1610 *) Perform some character comparisons of different types in X509_NAME_cmp:
1611 this is needed for some certificates that reencode DNs into UTF8Strings
1612 (in violation of RFC3280) and can't or wont issue name rollover
1616 *) Make an explicit check during certificate validation to see that
1617 the CA setting in each certificate on the chain is correct. As a
1618 side effect always do the following basic checks on extensions,
1619 not just when there's an associated purpose to the check:
1621 - if there is an unhandled critical extension (unless the user
1622 has chosen to ignore this fault)
1623 - if the path length has been exceeded (if one is set at all)
1624 - that certain extensions fit the associated purpose (if one has
1628 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
1630 *) Avoid a race condition when CRLs are checked in a multi threaded
1631 environment. This would happen due to the reordering of the revoked
1632 entries during signature checking and serial number lookup. Now the
1633 encoding is cached and the serial number sort performed under a lock.
1634 Add new STACK function sk_is_sorted().
1637 *) Add Delta CRL to the extension code.
1640 *) Various fixes to s3_pkt.c so alerts are sent properly.
1641 [David Holmes <d.holmes@f5.com>]
1643 *) Reduce the chances of duplicate issuer name and serial numbers (in
1644 violation of RFC3280) using the OpenSSL certificate creation utilities.
1645 This is done by creating a random 64 bit value for the initial serial
1646 number when a serial number file is created or when a self signed
1647 certificate is created using 'openssl req -x509'. The initial serial
1648 number file is created using 'openssl x509 -next_serial' in CA.pl
1649 rather than being initialized to 1.
1652 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
1654 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
1655 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
1656 [Joe Orton, Steve Henson]
1658 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
1660 [Joe Orton, Steve Henson]
1662 *) Make it possible to have multiple active certificates with the same
1663 subject in the CA index file. This is done only if the keyword
1664 'unique_subject' is set to 'no' in the main CA section (default
1665 if 'CA_default') of the configuration file. The value is saved
1666 with the database itself in a separate index attribute file,
1667 named like the index file with '.attr' appended to the name.
1670 *) X509 verify fixes. Disable broken certificate workarounds when
1671 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
1672 keyUsage extension present. Don't accept CRLs with unhandled critical
1673 extensions: since verify currently doesn't process CRL extensions this
1674 rejects a CRL with *any* critical extensions. Add new verify error codes
1678 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
1679 A clarification of RFC2560 will require the use of OCTET STRINGs and
1680 some implementations cannot handle the current raw format. Since OpenSSL
1681 copies and compares OCSP nonces as opaque blobs without any attempt at
1682 parsing them this should not create any compatibility issues.
1685 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
1686 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
1687 this HMAC (and other) operations are several times slower than OpenSSL
1691 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
1692 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1694 *) Use the correct content when signing type "other".
1697 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
1699 *) Fix various bugs revealed by running the NISCC test suite:
1701 Stop out of bounds reads in the ASN1 code when presented with
1702 invalid tags (CVE-2003-0543 and CVE-2003-0544).
1704 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
1706 If verify callback ignores invalid public key errors don't try to check
1707 certificate signature with the NULL public key.
1711 *) New -ignore_err option in ocsp application to stop the server
1712 exiting on the first error in a request.
1715 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
1716 if the server requested one: as stated in TLS 1.0 and SSL 3.0
1720 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
1721 extra data after the compression methods not only for TLS 1.0
1722 but also for SSL 3.0 (as required by the specification).
1723 [Bodo Moeller; problem pointed out by Matthias Loepfe]
1725 *) Change X509_certificate_type() to mark the key as exported/exportable
1726 when it's 512 *bits* long, not 512 bytes.
1729 *) Change AES_cbc_encrypt() so it outputs exact multiple of
1730 blocks during encryption.
1733 *) Various fixes to base64 BIO and non blocking I/O. On write
1734 flushes were not handled properly if the BIO retried. On read
1735 data was not being buffered properly and had various logic bugs.
1736 This also affects blocking I/O when the data being decoded is a
1740 *) Various S/MIME bugfixes and compatibility changes:
1741 output correct application/pkcs7 MIME type if
1742 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
1743 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
1744 of files as .eml work). Correctly handle very long lines in MIME
1748 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
1750 *) Countermeasure against the Klima-Pokorny-Rosa extension of
1751 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
1752 a protocol version number mismatch like a decryption error
1753 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
1756 *) Turn on RSA blinding by default in the default implementation
1757 to avoid a timing attack. Applications that don't want it can call
1758 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
1759 They would be ill-advised to do so in most cases.
1760 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
1762 *) Change RSA blinding code so that it works when the PRNG is not
1763 seeded (in this case, the secret RSA exponent is abused as
1764 an unpredictable seed -- if it is not unpredictable, there
1765 is no point in blinding anyway). Make RSA blinding thread-safe
1766 by remembering the creator's thread ID in rsa->blinding and
1767 having all other threads use local one-time blinding factors
1768 (this requires more computation than sharing rsa->blinding, but
1769 avoids excessive locking; and if an RSA object is not shared
1770 between threads, blinding will still be very fast).
1773 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
1774 ENGINE as defaults for all supported algorithms irrespective of
1775 the 'flags' parameter. 'flags' is now honoured, so applications
1776 should make sure they are passing it correctly.
1779 *) Target "mingw" now allows native Windows code to be generated in
1780 the Cygwin environment as well as with the MinGW compiler.
1783 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
1785 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
1786 via timing by performing a MAC computation even if incorrrect
1787 block cipher padding has been found. This is a countermeasure
1788 against active attacks where the attacker has to distinguish
1789 between bad padding and a MAC verification error. (CVE-2003-0078)
1791 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
1792 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
1793 Martin Vuagnoux (EPFL, Ilion)]
1795 *) Make the no-err option work as intended. The intention with no-err
1796 is not to have the whole error stack handling routines removed from
1797 libcrypto, it's only intended to remove all the function name and
1798 reason texts, thereby removing some of the footprint that may not
1799 be interesting if those errors aren't displayed anyway.
1801 NOTE: it's still possible for any application or module to have it's
1802 own set of error texts inserted. The routines are there, just not
1803 used by default when no-err is given.
1806 *) Add support for FreeBSD on IA64.
1807 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
1809 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
1810 Kerberos function mit_des_cbc_cksum(). Before this change,
1811 the value returned by DES_cbc_cksum() was like the one from
1812 mit_des_cbc_cksum(), except the bytes were swapped.
1813 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
1815 *) Allow an application to disable the automatic SSL chain building.
1816 Before this a rather primitive chain build was always performed in
1817 ssl3_output_cert_chain(): an application had no way to send the
1818 correct chain if the automatic operation produced an incorrect result.
1820 Now the chain builder is disabled if either:
1822 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
1824 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
1826 The reasoning behind this is that an application would not want the
1827 auto chain building to take place if extra chain certificates are
1828 present and it might also want a means of sending no additional
1829 certificates (for example the chain has two certificates and the
1833 *) Add the possibility to build without the ENGINE framework.
1834 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1836 *) Under Win32 gmtime() can return NULL: check return value in
1837 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
1840 *) DSA routines: under certain error conditions uninitialized BN objects
1841 could be freed. Solution: make sure initialization is performed early
1842 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
1843 Nils Larsch <nla@trustcenter.de> via PR#459)
1846 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
1847 checked on reconnect on the client side, therefore session resumption
1848 could still fail with a "ssl session id is different" error. This
1849 behaviour is masked when SSL_OP_ALL is used due to
1850 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
1851 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1852 followup to PR #377.
1855 *) IA-32 assembler support enhancements: unified ELF targets, support
1856 for SCO/Caldera platforms, fix for Cygwin shared build.
1859 *) Add support for FreeBSD on sparc64. As a consequence, support for
1860 FreeBSD on non-x86 processors is separate from x86 processors on
1861 the config script, much like the NetBSD support.
1862 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
1864 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
1866 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
1869 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
1870 code (06) was taken as the first octet of the session ID and the last
1871 octet was ignored consequently. As a result SSLv2 client side session
1872 caching could not have worked due to the session ID mismatch between
1874 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1878 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
1879 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
1883 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
1884 seems that in spite of existing for more than a year, many application
1885 author have done nothing to provide the necessary callbacks, which
1886 means that this particular engine will not work properly anywhere.
1887 This is a very unfortunate situation which forces us, in the name
1888 of usability, to give the hw_ncipher.c a static lock, which is part
1890 NOTE: This is for the 0.9.7 series ONLY. This hack will never
1891 appear in 0.9.8 or later. We EXPECT application authors to have
1892 dealt properly with this when 0.9.8 is released (unless we actually
1893 make such changes in the libcrypto locking code that changes will
1894 have to be made anyway).
1897 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
1898 octets have been read, EOF or an error occurs. Without this change
1899 some truncated ASN1 structures will not produce an error.
1902 *) Disable Heimdal support, since it hasn't been fully implemented.
1903 Still give the possibility to force the use of Heimdal, but with
1904 warnings and a request that patches get sent to openssl-dev.
1907 *) Add the VC-CE target, introduce the WINCE sysname, and add
1908 INSTALL.WCE and appropriate conditionals to make it build.
1909 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1911 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
1912 cygssl-x.y.z.dll, where x, y and z are the major, minor and
1913 edit numbers of the version.
1914 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
1916 *) Introduce safe string copy and catenation functions
1917 (BUF_strlcpy() and BUF_strlcat()).
1918 [Ben Laurie (CHATS) and Richard Levitte]
1920 *) Avoid using fixed-size buffers for one-line DNs.
1921 [Ben Laurie (CHATS)]
1923 *) Add BUF_MEM_grow_clean() to avoid information leakage when
1924 resizing buffers containing secrets, and use where appropriate.
1925 [Ben Laurie (CHATS)]
1927 *) Avoid using fixed size buffers for configuration file location.
1928 [Ben Laurie (CHATS)]
1930 *) Avoid filename truncation for various CA files.
1931 [Ben Laurie (CHATS)]
1933 *) Use sizeof in preference to magic numbers.
1934 [Ben Laurie (CHATS)]
1936 *) Avoid filename truncation in cert requests.
1937 [Ben Laurie (CHATS)]
1939 *) Add assertions to check for (supposedly impossible) buffer
1941 [Ben Laurie (CHATS)]
1943 *) Don't cache truncated DNS entries in the local cache (this could
1944 potentially lead to a spoofing attack).
1945 [Ben Laurie (CHATS)]
1947 *) Fix various buffers to be large enough for hex/decimal
1948 representations in a platform independent manner.
1949 [Ben Laurie (CHATS)]
1951 *) Add CRYPTO_realloc_clean() to avoid information leakage when
1952 resizing buffers containing secrets, and use where appropriate.
1953 [Ben Laurie (CHATS)]
1955 *) Add BIO_indent() to avoid much slightly worrying code to do
1957 [Ben Laurie (CHATS)]
1959 *) Convert sprintf()/BIO_puts() to BIO_printf().
1960 [Ben Laurie (CHATS)]
1962 *) buffer_gets() could terminate with the buffer only half
1964 [Ben Laurie (CHATS)]
1966 *) Add assertions to prevent user-supplied crypto functions from
1967 overflowing internal buffers by having large block sizes, etc.
1968 [Ben Laurie (CHATS)]
1970 *) New OPENSSL_assert() macro (similar to assert(), but enabled
1972 [Ben Laurie (CHATS)]
1974 *) Eliminate unused copy of key in RC4.
1975 [Ben Laurie (CHATS)]
1977 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
1978 [Ben Laurie (CHATS)]
1980 *) Fix off-by-one error in EGD path.
1981 [Ben Laurie (CHATS)]
1983 *) If RANDFILE path is too long, ignore instead of truncating.
1984 [Ben Laurie (CHATS)]
1986 *) Eliminate unused and incorrectly sized X.509 structure
1988 [Ben Laurie (CHATS)]
1990 *) Eliminate unused and dangerous function knumber().
1991 [Ben Laurie (CHATS)]
1993 *) Eliminate unused and dangerous structure, KSSL_ERR.
1994 [Ben Laurie (CHATS)]
1996 *) Protect against overlong session ID context length in an encoded
1997 session object. Since these are local, this does not appear to be
1999 [Ben Laurie (CHATS)]
2001 *) Change from security patch (see 0.9.6e below) that did not affect
2002 the 0.9.6 release series:
2004 Remote buffer overflow in SSL3 protocol - an attacker could
2005 supply an oversized master key in Kerberos-enabled versions.
2007 [Ben Laurie (CHATS)]
2009 *) Change the SSL kerb5 codes to match RFC 2712.
2012 *) Make -nameopt work fully for req and add -reqopt switch.
2013 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
2015 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
2016 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
2018 *) Make sure tests can be performed even if the corresponding algorithms
2019 have been removed entirely. This was also the last step to make
2020 OpenSSL compilable with DJGPP under all reasonable conditions.
2021 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
2023 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
2024 to allow version independent disabling of normally unselected ciphers,
2025 which may be activated as a side-effect of selecting a single cipher.
2027 (E.g., cipher list string "RSA" enables ciphersuites that are left
2028 out of "ALL" because they do not provide symmetric encryption.
2029 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
2030 [Lutz Jaenicke, Bodo Moeller]
2032 *) Add appropriate support for separate platform-dependent build
2033 directories. The recommended way to make a platform-dependent
2034 build directory is the following (tested on Linux), maybe with
2037 # Place yourself outside of the OpenSSL source tree. In
2038 # this example, the environment variable OPENSSL_SOURCE
2039 # is assumed to contain the absolute OpenSSL source directory.
2040 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
2041 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
2042 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
2043 mkdir -p `dirname $F`
2044 ln -s $OPENSSL_SOURCE/$F $F
2047 To be absolutely sure not to disturb the source tree, a "make clean"
2048 is a good thing. If it isn't successfull, don't worry about it,
2049 it probably means the source directory is very clean.
2052 *) Make sure any ENGINE control commands make local copies of string
2053 pointers passed to them whenever necessary. Otherwise it is possible
2054 the caller may have overwritten (or deallocated) the original string
2055 data when a later ENGINE operation tries to use the stored values.
2056 [Götz Babin-Ebell <babinebell@trustcenter.de>]
2058 *) Improve diagnostics in file reading and command-line digests.
2059 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
2061 *) Add AES modes CFB and OFB to the object database. Correct an
2062 error in AES-CFB decryption.
2065 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
2066 allows existing EVP_CIPHER_CTX structures to be reused after
2067 calling EVP_*Final(). This behaviour is used by encryption
2068 BIOs and some applications. This has the side effect that
2069 applications must explicitly clean up cipher contexts with
2070 EVP_CIPHER_CTX_cleanup() or they will leak memory.
2073 *) Check the values of dna and dnb in bn_mul_recursive before calling
2074 bn_mul_comba (a non zero value means the a or b arrays do not contain
2075 n2 elements) and fallback to bn_mul_normal if either is not zero.
2078 *) Fix escaping of non-ASCII characters when using the -subj option
2079 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
2082 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
2083 form for "surname", serialNumber has no short form.
2084 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
2085 therefore remove "mail" short name for "internet 7".
2086 The OID for unique identifiers in X509 certificates is
2087 x500UniqueIdentifier, not uniqueIdentifier.
2088 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
2091 *) Add an "init" command to the ENGINE config module and auto initialize
2092 ENGINEs. Without any "init" command the ENGINE will be initialized
2093 after all ctrl commands have been executed on it. If init=1 the
2094 ENGINE is initailized at that point (ctrls before that point are run
2095 on the uninitialized ENGINE and after on the initialized one). If
2096 init=0 then the ENGINE will not be iniatialized at all.
2099 *) Fix the 'app_verify_callback' interface so that the user-defined
2100 argument is actually passed to the callback: In the
2101 SSL_CTX_set_cert_verify_callback() prototype, the callback
2102 declaration has been changed from
2105 int (*cb)(X509_STORE_CTX *,void *);
2106 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
2107 i=s->ctx->app_verify_callback(&ctx)
2108 has been changed into
2109 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
2111 To update applications using SSL_CTX_set_cert_verify_callback(),
2112 a dummy argument can be added to their callback functions.
2113 [D. K. Smetters <smetters@parc.xerox.com>]
2115 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
2116 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
2118 *) Add and OPENSSL_LOAD_CONF define which will cause
2119 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
2120 This allows older applications to transparently support certain
2121 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
2122 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
2123 load the config file and OPENSSL_add_all_algorithms_conf() which will
2124 always load it have also been added.
2127 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
2128 Adjust NIDs and EVP layer.
2129 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2131 *) Config modules support in openssl utility.
2133 Most commands now load modules from the config file,
2134 though in a few (such as version) this isn't done
2135 because it couldn't be used for anything.
2137 In the case of ca and req the config file used is
2138 the same as the utility itself: that is the -config
2139 command line option can be used to specify an
2143 *) Move default behaviour from OPENSSL_config(). If appname is NULL
2144 use "openssl_conf" if filename is NULL use default openssl config file.
2147 *) Add an argument to OPENSSL_config() to allow the use of an alternative
2148 config section name. Add a new flag to tolerate a missing config file
2149 and move code to CONF_modules_load_file().
2152 *) Support for crypto accelerator cards from Accelerated Encryption
2153 Processing, www.aep.ie. (Use engine 'aep')
2154 The support was copied from 0.9.6c [engine] and adapted/corrected
2155 to work with the new engine framework.
2156 [AEP Inc. and Richard Levitte]
2158 *) Support for SureWare crypto accelerator cards from Baltimore
2159 Technologies. (Use engine 'sureware')
2160 The support was copied from 0.9.6c [engine] and adapted
2161 to work with the new engine framework.
2164 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
2165 make the newer ENGINE framework commands for the CHIL engine work.
2166 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
2168 *) Make it possible to produce shared libraries on ReliantUNIX.
2169 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
2171 *) Add the configuration target debug-linux-ppro.
2172 Make 'openssl rsa' use the general key loading routines
2173 implemented in apps.c, and make those routines able to
2174 handle the key format FORMAT_NETSCAPE and the variant
2176 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2178 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
2179 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2181 *) Add -keyform to rsautl, and document -engine.
2182 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
2184 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
2185 BIO_R_NO_SUCH_FILE error code rather than the generic
2186 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
2189 *) Add new functions
2191 ERR_peek_last_error_line
2192 ERR_peek_last_error_line_data.
2193 These are similar to
2196 ERR_peek_error_line_data,
2197 but report on the latest error recorded rather than the first one
2198 still in the error queue.
2199 [Ben Laurie, Bodo Moeller]
2201 *) default_algorithms option in ENGINE config module. This allows things
2203 default_algorithms = ALL
2204 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
2207 *) Prelminary ENGINE config module.
2210 *) New experimental application configuration code.
2213 *) Change the AES code to follow the same name structure as all other
2214 symmetric ciphers, and behave the same way. Move everything to
2215 the directory crypto/aes, thereby obsoleting crypto/rijndael.
2216 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2218 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
2219 [Ben Laurie and Theo de Raadt]
2221 *) Add option to output public keys in req command.
2222 [Massimiliano Pala madwolf@openca.org]
2224 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
2225 (up to about 10% better than before for P-192 and P-224).
2228 *) New functions/macros
2230 SSL_CTX_set_msg_callback(ctx, cb)
2231 SSL_CTX_set_msg_callback_arg(ctx, arg)
2232 SSL_set_msg_callback(ssl, cb)
2233 SSL_set_msg_callback_arg(ssl, arg)
2235 to request calling a callback function
2237 void cb(int write_p, int version, int content_type,
2238 const void *buf, size_t len, SSL *ssl, void *arg)
2240 whenever a protocol message has been completely received
2241 (write_p == 0) or sent (write_p == 1). Here 'version' is the
2242 protocol version according to which the SSL library interprets
2243 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
2244 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
2245 the content type as defined in the SSL 3.0/TLS 1.0 protocol
2246 specification (change_cipher_spec(20), alert(21), handshake(22)).
2247 'buf' and 'len' point to the actual message, 'ssl' to the
2248 SSL object, and 'arg' is the application-defined value set by
2249 SSL[_CTX]_set_msg_callback_arg().
2251 'openssl s_client' and 'openssl s_server' have new '-msg' options
2252 to enable a callback that displays all protocol messages.
2255 *) Change the shared library support so shared libraries are built as
2256 soon as the corresponding static library is finished, and thereby get
2257 openssl and the test programs linked against the shared library.
2258 This still only happens when the keyword "shard" has been given to
2259 the configuration scripts.
2261 NOTE: shared library support is still an experimental thing, and
2262 backward binary compatibility is still not guaranteed.
2263 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
2265 *) Add support for Subject Information Access extension.
2266 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2268 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
2269 additional bytes when new memory had to be allocated, not just
2270 when reusing an existing buffer.
2273 *) New command line and configuration option 'utf8' for the req command.
2274 This allows field values to be specified as UTF8 strings.
2277 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
2278 runs for the former and machine-readable output for the latter.
2281 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
2282 of the e-mail address in the DN (i.e., it will go into a certificate
2283 extension only). The new configuration file option 'email_in_dn = no'
2284 has the same effect.
2285 [Massimiliano Pala madwolf@openca.org]
2287 *) Change all functions with names starting with des_ to be starting
2288 with DES_ instead. Add wrappers that are compatible with libdes,
2289 but are named _ossl_old_des_*. Finally, add macros that map the
2290 des_* symbols to the corresponding _ossl_old_des_* if libdes
2291 compatibility is desired. If OpenSSL 0.9.6c compatibility is
2292 desired, the des_* symbols will be mapped to DES_*, with one
2295 Since we provide two compatibility mappings, the user needs to
2296 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
2297 compatibility is desired. The default (i.e., when that macro
2298 isn't defined) is OpenSSL 0.9.6c compatibility.
2300 There are also macros that enable and disable the support of old
2301 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
2302 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
2303 are defined, the default will apply: to support the old des routines.
2305 In either case, one must include openssl/des.h to get the correct
2306 definitions. Do not try to just include openssl/des_old.h, that
2309 NOTE: This is a major break of an old API into a new one. Software
2310 authors are encouraged to switch to the DES_ style functions. Some
2311 time in the future, des_old.h and the libdes compatibility functions
2312 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
2313 default), and then completely removed.
2316 *) Test for certificates which contain unsupported critical extensions.
2317 If such a certificate is found during a verify operation it is
2318 rejected by default: this behaviour can be overridden by either
2319 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
2320 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
2321 X509_supported_extension() has also been added which returns 1 if a
2322 particular extension is supported.
2325 *) Modify the behaviour of EVP cipher functions in similar way to digests
2326 to retain compatibility with existing code.
2329 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
2330 compatibility with existing code. In particular the 'ctx' parameter does
2331 not have to be to be initialized before the call to EVP_DigestInit() and
2332 it is tidied up after a call to EVP_DigestFinal(). New function
2333 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
2334 EVP_MD_CTX_copy() changed to not require the destination to be
2335 initialized valid and new function EVP_MD_CTX_copy_ex() added which
2336 requires the destination to be valid.
2338 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
2339 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
2342 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
2343 so that complete 'Handshake' protocol structures are kept in memory
2344 instead of overwriting 'msg_type' and 'length' with 'body' data.
2347 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
2348 [Massimo Santin via Richard Levitte]
2350 *) Major restructuring to the underlying ENGINE code. This includes
2351 reduction of linker bloat, separation of pure "ENGINE" manipulation
2352 (initialisation, etc) from functionality dealing with implementations
2353 of specific crypto iterfaces. This change also introduces integrated
2354 support for symmetric ciphers and digest implementations - so ENGINEs
2355 can now accelerate these by providing EVP_CIPHER and EVP_MD
2356 implementations of their own. This is detailed in crypto/engine/README
2357 as it couldn't be adequately described here. However, there are a few
2358 API changes worth noting - some RSA, DSA, DH, and RAND functions that
2359 were changed in the original introduction of ENGINE code have now
2360 reverted back - the hooking from this code to ENGINE is now a good
2361 deal more passive and at run-time, operations deal directly with
2362 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
2363 dereferencing through an ENGINE pointer any more. Also, the ENGINE
2364 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
2365 they were not being used by the framework as there is no concept of a
2366 BIGNUM_METHOD and they could not be generalised to the new
2367 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
2368 ENGINE_cpy() has been removed as it cannot be consistently defined in
2372 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
2375 *) Change mkdef.pl to sort symbols that get the same entry number,
2376 and make sure the automatically generated functions ERR_load_*
2377 become part of libeay.num as well.
2380 *) New function SSL_renegotiate_pending(). This returns true once
2381 renegotiation has been requested (either SSL_renegotiate() call
2382 or HelloRequest/ClientHello receveived from the peer) and becomes
2383 false once a handshake has been completed.
2384 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
2385 sends a HelloRequest, but does not ensure that a handshake takes
2386 place. SSL_renegotiate_pending() is useful for checking if the
2387 client has followed the request.)
2390 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
2391 By default, clients may request session resumption even during
2392 renegotiation (if session ID contexts permit); with this option,
2393 session resumption is possible only in the first handshake.
2395 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
2396 more bits available for options that should not be part of
2397 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
2400 *) Add some demos for certificate and certificate request creation.
2403 *) Make maximum certificate chain size accepted from the peer application
2404 settable (SSL*_get/set_max_cert_list()), as proposed by
2405 "Douglas E. Engert" <deengert@anl.gov>.
2408 *) Add support for shared libraries for Unixware-7
2409 (Boyd Lynn Gerber <gerberb@zenez.com>).
2412 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
2413 be done prior to destruction. Use this to unload error strings from
2414 ENGINEs that load their own error strings. NB: This adds two new API
2415 functions to "get" and "set" this destroy handler in an ENGINE.
2418 *) Alter all existing ENGINE implementations (except "openssl" and
2419 "openbsd") to dynamically instantiate their own error strings. This
2420 makes them more flexible to be built both as statically-linked ENGINEs
2421 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
2422 Also, add stub code to each that makes building them as self-contained
2423 shared-libraries easier (see README.ENGINE).
2426 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
2427 implementations into applications that are completely implemented in
2428 self-contained shared-libraries. The "dynamic" ENGINE exposes control
2429 commands that can be used to configure what shared-library to load and
2430 to control aspects of the way it is handled. Also, made an update to
2431 the README.ENGINE file that brings its information up-to-date and
2432 provides some information and instructions on the "dynamic" ENGINE
2433 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
2436 *) Make it possible to unload ranges of ERR strings with a new
2437 "ERR_unload_strings" function.
2440 *) Add a copy() function to EVP_MD.
2443 *) Make EVP_MD routines take a context pointer instead of just the
2444 md_data void pointer.
2447 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
2448 that the digest can only process a single chunk of data
2449 (typically because it is provided by a piece of
2450 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
2451 is only going to provide a single chunk of data, and hence the
2452 framework needn't accumulate the data for oneshot drivers.
2455 *) As with "ERR", make it possible to replace the underlying "ex_data"
2456 functions. This change also alters the storage and management of global
2457 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
2458 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
2459 index counters. The API functions that use this state have been changed
2460 to take a "class_index" rather than pointers to the class's local STACK
2461 and counter, and there is now an API function to dynamically create new
2462 classes. This centralisation allows us to (a) plug a lot of the
2463 thread-safety problems that existed, and (b) makes it possible to clean
2464 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
2465 such data would previously have always leaked in application code and
2466 workarounds were in place to make the memory debugging turn a blind eye
2467 to it. Application code that doesn't use this new function will still
2468 leak as before, but their memory debugging output will announce it now
2469 rather than letting it slide.
2471 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
2472 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
2473 has a return value to indicate success or failure.
2476 *) Make it possible to replace the underlying "ERR" functions such that the
2477 global state (2 LHASH tables and 2 locks) is only used by the "default"
2478 implementation. This change also adds two functions to "get" and "set"
2479 the implementation prior to it being automatically set the first time
2480 any other ERR function takes place. Ie. an application can call "get",
2481 pass the return value to a module it has just loaded, and that module
2482 can call its own "set" function using that value. This means the
2483 module's "ERR" operations will use (and modify) the error state in the
2484 application and not in its own statically linked copy of OpenSSL code.
2487 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
2488 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
2489 the operation, and provides a more encapsulated way for external code
2490 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
2491 to use these functions rather than manually incrementing the counts.
2493 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
2496 *) Add EVP test program.
2499 *) Add symmetric cipher support to ENGINE. Expect the API to change!
2502 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
2503 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
2504 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
2505 These allow a CRL to be built without having to access X509_CRL fields
2506 directly. Modify 'ca' application to use new functions.
2509 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
2510 bug workarounds. Rollback attack detection is a security feature.
2511 The problem will only arise on OpenSSL servers when TLSv1 is not
2512 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
2513 Software authors not wanting to support TLSv1 will have special reasons
2514 for their choice and can explicitly enable this option.
2515 [Bodo Moeller, Lutz Jaenicke]
2517 *) Rationalise EVP so it can be extended: don't include a union of
2518 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
2519 (similar to those existing for EVP_CIPHER_CTX).
2524 EVP_MD_CTX_init(&md); /* new function call */
2525 EVP_DigestInit(&md, EVP_sha1());
2526 EVP_DigestUpdate(&md, in, len);
2527 EVP_DigestFinal(&md, out, NULL);
2528 EVP_MD_CTX_cleanup(&md); /* new function call */
2532 *) Make DES key schedule conform to the usual scheme, as well as
2533 correcting its structure. This means that calls to DES functions
2534 now have to pass a pointer to a des_key_schedule instead of a
2535 plain des_key_schedule (which was actually always a pointer
2538 des_key_schedule ks;
2540 des_set_key_checked(..., &ks);
2541 des_ncbc_encrypt(..., &ks, ...);
2543 (Note that a later change renames 'des_...' into 'DES_...'.)
2546 *) Initial reduction of linker bloat: the use of some functions, such as
2547 PEM causes large amounts of unused functions to be linked in due to
2548 poor organisation. For example pem_all.c contains every PEM function
2549 which has a knock on effect of linking in large amounts of (unused)
2550 ASN1 code. Grouping together similar functions and splitting unrelated
2551 functions prevents this.
2554 *) Cleanup of EVP macros.
2557 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
2558 correct _ecb suffix.
2561 *) Add initial OCSP responder support to ocsp application. The
2562 revocation information is handled using the text based index
2563 use by the ca application. The responder can either handle
2564 requests generated internally, supplied in files (for example
2565 via a CGI script) or using an internal minimal server.
2568 *) Add configuration choices to get zlib compression for TLS.
2571 *) Changes to Kerberos SSL for RFC 2712 compliance:
2572 1. Implemented real KerberosWrapper, instead of just using
2573 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
2574 2. Implemented optional authenticator field of KerberosWrapper.
2576 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
2577 and authenticator structs; see crypto/krb5/.
2579 Generalized Kerberos calls to support multiple Kerberos libraries.
2580 [Vern Staats <staatsvr@asc.hpc.mil>,
2581 Jeffrey Altman <jaltman@columbia.edu>
2582 via Richard Levitte]
2584 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
2585 already does with RSA. testdsa.h now has 'priv_key/pub_key'
2586 values for each of the key sizes rather than having just
2587 parameters (and 'speed' generating keys each time).
2590 *) Speed up EVP routines.
2593 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
2594 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
2595 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
2596 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
2598 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
2599 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
2600 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
2603 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
2605 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
2608 *) Added the OS2-EMX target.
2609 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
2611 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
2612 to support NCONF routines in extension code. New function CONF_set_nconf()
2613 to allow functions which take an NCONF to also handle the old LHASH
2614 structure: this means that the old CONF compatible routines can be
2615 retained (in particular wrt extensions) without having to duplicate the
2616 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
2619 *) Enhance the general user interface with mechanisms for inner control
2620 and with possibilities to have yes/no kind of prompts.
2623 *) Change all calls to low level digest routines in the library and
2624 applications to use EVP. Add missing calls to HMAC_cleanup() and
2625 don't assume HMAC_CTX can be copied using memcpy().
2626 [Verdon Walker <VWalker@novell.com>, Steve Henson]
2628 *) Add the possibility to control engines through control names but with
2629 arbitrary arguments instead of just a string.
2630 Change the key loaders to take a UI_METHOD instead of a callback
2631 function pointer. NOTE: this breaks binary compatibility with earlier
2632 versions of OpenSSL [engine].
2633 Adapt the nCipher code for these new conditions and add a card insertion
2637 *) Enhance the general user interface with mechanisms to better support
2638 dialog box interfaces, application-defined prompts, the possibility
2639 to use defaults (for example default passwords from somewhere else)
2640 and interrupts/cancellations.
2643 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
2644 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
2647 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
2648 tidy up some unnecessarily weird code in 'sk_new()').
2649 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
2651 *) Change the key loading routines for ENGINEs to use the same kind
2652 callback (pem_password_cb) as all other routines that need this
2656 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
2657 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
2658 than this minimum value is recommended.
2661 *) New random seeder for OpenVMS, using the system process statistics
2662 that are easily reachable.
2665 *) Windows apparently can't transparently handle global
2666 variables defined in DLLs. Initialisations such as:
2668 const ASN1_ITEM *it = &ASN1_INTEGER_it;
2670 wont compile. This is used by the any applications that need to
2671 declare their own ASN1 modules. This was fixed by adding the option
2672 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
2673 needed for static libraries under Win32.
2676 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
2677 setting of purpose and trust fields. New X509_STORE trust and
2678 purpose functions and tidy up setting in other SSL functions.
2681 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
2682 structure. These are inherited by X509_STORE_CTX when it is
2683 initialised. This allows various defaults to be set in the
2684 X509_STORE structure (such as flags for CRL checking and custom
2685 purpose or trust settings) for functions which only use X509_STORE_CTX
2686 internally such as S/MIME.
2688 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
2689 trust settings if they are not set in X509_STORE. This allows X509_STORE
2690 purposes and trust (in S/MIME for example) to override any set by default.
2692 Add command line options for CRL checking to smime, s_client and s_server
2696 *) Initial CRL based revocation checking. If the CRL checking flag(s)
2697 are set then the CRL is looked up in the X509_STORE structure and
2698 its validity and signature checked, then if the certificate is found
2699 in the CRL the verify fails with a revoked error.
2701 Various new CRL related callbacks added to X509_STORE_CTX structure.
2703 Command line options added to 'verify' application to support this.
2705 This needs some additional work, such as being able to handle multiple
2706 CRLs with different times, extension based lookup (rather than just
2707 by subject name) and ultimately more complete V2 CRL extension
2711 *) Add a general user interface API (crypto/ui/). This is designed
2712 to replace things like des_read_password and friends (backward
2713 compatibility functions using this new API are provided).
2714 The purpose is to remove prompting functions from the DES code
2715 section as well as provide for prompting through dialog boxes in
2716 a window system and the like.
2719 *) Add "ex_data" support to ENGINE so implementations can add state at a
2720 per-structure level rather than having to store it globally.
2723 *) Make it possible for ENGINE structures to be copied when retrieved by
2724 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
2725 This causes the "original" ENGINE structure to act like a template,
2726 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
2727 operational state can be localised to each ENGINE structure, despite the
2728 fact they all share the same "methods". New ENGINE structures returned in
2729 this case have no functional references and the return value is the single
2730 structural reference. This matches the single structural reference returned
2731 by ENGINE_by_id() normally, when it is incremented on the pre-existing
2735 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
2736 needs to match any other type at all we need to manually clear the
2740 *) Changes to the "openssl engine" utility to include;
2741 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
2742 about an ENGINE's available control commands.
2743 - executing control commands from command line arguments using the
2744 '-pre' and '-post' switches. '-post' is only used if '-t' is
2745 specified and the ENGINE is successfully initialised. The syntax for
2746 the individual commands are colon-separated, for example;
2747 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
2750 *) New dynamic control command support for ENGINEs. ENGINEs can now
2751 declare their own commands (numbers), names (strings), descriptions,
2752 and input types for run-time discovery by calling applications. A
2753 subset of these commands are implicitly classed as "executable"
2754 depending on their input type, and only these can be invoked through
2755 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
2756 can be based on user input, config files, etc). The distinction is
2757 that "executable" commands cannot return anything other than a boolean
2758 result and can only support numeric or string input, whereas some
2759 discoverable commands may only be for direct use through
2760 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
2761 pointers, or other custom uses. The "executable" commands are to
2762 support parameterisations of ENGINE behaviour that can be
2763 unambiguously defined by ENGINEs and used consistently across any
2764 OpenSSL-based application. Commands have been added to all the
2765 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
2766 control over shared-library paths without source code alterations.
2769 *) Changed all ENGINE implementations to dynamically allocate their
2770 ENGINEs rather than declaring them statically. Apart from this being
2771 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
2772 this also allows the implementations to compile without using the
2773 internal engine_int.h header.
2776 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
2777 'const' value. Any code that should be able to modify a RAND_METHOD
2778 should already have non-const pointers to it (ie. they should only
2779 modify their own ones).
2782 *) Made a variety of little tweaks to the ENGINE code.
2783 - "atalla" and "ubsec" string definitions were moved from header files
2784 to C code. "nuron" string definitions were placed in variables
2785 rather than hard-coded - allowing parameterisation of these values
2786 later on via ctrl() commands.
2787 - Removed unused "#if 0"'d code.
2788 - Fixed engine list iteration code so it uses ENGINE_free() to release
2789 structural references.
2790 - Constified the RAND_METHOD element of ENGINE structures.
2791 - Constified various get/set functions as appropriate and added
2792 missing functions (including a catch-all ENGINE_cpy that duplicates
2793 all ENGINE values onto a new ENGINE except reference counts/state).
2794 - Removed NULL parameter checks in get/set functions. Setting a method
2795 or function to NULL is a way of cancelling out a previously set
2796 value. Passing a NULL ENGINE parameter is just plain stupid anyway
2797 and doesn't justify the extra error symbols and code.
2798 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
2799 flags from engine_int.h to engine.h.
2800 - Changed prototypes for ENGINE handler functions (init(), finish(),
2801 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
2804 *) Implement binary inversion algorithm for BN_mod_inverse in addition
2805 to the algorithm using long division. The binary algorithm can be
2806 used only if the modulus is odd. On 32-bit systems, it is faster
2807 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
2808 roughly 5-15% for 256-bit moduli), so we use it only for moduli
2809 up to 450 bits. In 64-bit environments, the binary algorithm
2810 appears to be advantageous for much longer moduli; here we use it
2811 for moduli up to 2048 bits.
2814 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
2815 could not support the combine flag in choice fields.
2818 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
2819 extensions from a certificate request to the certificate.
2822 *) Allow multiple 'certopt' and 'nameopt' options to be separated
2823 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
2824 file: this allows the display of the certificate about to be
2825 signed to be customised, to allow certain fields to be included
2826 or excluded and extension details. The old system didn't display
2827 multicharacter strings properly, omitted fields not in the policy
2828 and couldn't display additional details such as extensions.
2831 *) Function EC_POINTs_mul for multiple scalar multiplication
2832 of an arbitrary number of elliptic curve points
2833 \sum scalars[i]*points[i],
2834 optionally including the generator defined for the EC_GROUP:
2835 scalar*generator + \sum scalars[i]*points[i].
2837 EC_POINT_mul is a simple wrapper function for the typical case
2838 that the point list has just one item (besides the optional
2842 *) First EC_METHODs for curves over GF(p):
2844 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
2845 operations and provides various method functions that can also
2846 operate with faster implementations of modular arithmetic.
2848 EC_GFp_mont_method() reuses most functions that are part of
2849 EC_GFp_simple_method, but uses Montgomery arithmetic.
2851 [Bodo Moeller; point addition and point doubling
2852 implementation directly derived from source code provided by
2853 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
2855 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
2856 crypto/ec/ec_lib.c):
2858 Curves are EC_GROUP objects (with an optional group generator)
2859 based on EC_METHODs that are built into the library.
2861 Points are EC_POINT objects based on EC_GROUP objects.
2863 Most of the framework would be able to handle curves over arbitrary
2864 finite fields, but as there are no obvious types for fields other
2865 than GF(p), some functions are limited to that for now.
2868 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
2869 that the file contains a complete HTTP response.
2872 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
2873 change the def and num file printf format specifier from "%-40sXXX"
2874 to "%-39s XXX". The latter will always guarantee a space after the
2875 field while the former will cause them to run together if the field
2876 is 40 of more characters long.
2879 *) Constify the cipher and digest 'method' functions and structures
2880 and modify related functions to take constant EVP_MD and EVP_CIPHER
2884 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
2885 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
2888 *) Modify EVP_Digest*() routines so they now return values. Although the
2889 internal software routines can never fail additional hardware versions
2893 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
2895 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
2896 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
2899 ERR_R_NESTED_ASN1_ERROR
2901 ERR_R_MISSING_ASN1_EOS
2902 were 4 .. 9, conflicting with
2903 ERR_LIB_RSA (= ERR_R_RSA_LIB)
2905 ERR_LIB_PEM (= ERR_R_PEM_LIB).
2906 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
2908 Add new error code 'ERR_R_INTERNAL_ERROR'.
2911 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
2915 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
2916 sets the subject name for a new request or supersedes the
2917 subject name in a given request. Formats that can be parsed are
2918 'CN=Some Name, OU=myOU, C=IT'
2920 'CN=Some Name/OU=myOU/C=IT'.
2922 Add options '-batch' and '-verbose' to 'openssl req'.
2923 [Massimiliano Pala <madwolf@hackmasters.net>]
2925 *) Introduce the possibility to access global variables through
2926 functions on platform were that's the best way to handle exporting
2927 global variables in shared libraries. To enable this functionality,
2928 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
2929 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
2930 is normally done by Configure or something similar).
2932 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
2933 in the source file (foo.c) like this:
2935 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
2936 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
2938 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
2939 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
2941 OPENSSL_DECLARE_GLOBAL(int,foo);
2942 #define foo OPENSSL_GLOBAL_REF(foo)
2943 OPENSSL_DECLARE_GLOBAL(double,bar);
2944 #define bar OPENSSL_GLOBAL_REF(bar)
2946 The #defines are very important, and therefore so is including the
2947 header file everywhere where the defined globals are used.
2949 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
2950 of ASN.1 items, but that structure is a bit different.
2952 The largest change is in util/mkdef.pl which has been enhanced with
2953 better and easier to understand logic to choose which symbols should
2954 go into the Windows .def files as well as a number of fixes and code
2955 cleanup (among others, algorithm keywords are now sorted
2956 lexicographically to avoid constant rewrites).
2959 *) In BN_div() keep a copy of the sign of 'num' before writing the
2960 result to 'rm' because if rm==num the value will be overwritten
2961 and produce the wrong result if 'num' is negative: this caused
2962 problems with BN_mod() and BN_nnmod().
2965 *) Function OCSP_request_verify(). This checks the signature on an
2966 OCSP request and verifies the signer certificate. The signer
2967 certificate is just checked for a generic purpose and OCSP request
2971 *) Add OCSP_check_validity() function to check the validity of OCSP
2972 responses. OCSP responses are prepared in real time and may only
2973 be a few seconds old. Simply checking that the current time lies
2974 between thisUpdate and nextUpdate max reject otherwise valid responses
2975 caused by either OCSP responder or client clock inaccuracy. Instead
2976 we allow thisUpdate and nextUpdate to fall within a certain period of
2977 the current time. The age of the response can also optionally be
2978 checked. Two new options -validity_period and -status_age added to
2982 *) If signature or public key algorithm is unrecognized print out its
2983 OID rather that just UNKNOWN.
2986 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
2987 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
2988 ID to be generated from the issuer certificate alone which can then be
2989 passed to OCSP_id_issuer_cmp().
2992 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
2993 ASN1 modules to export functions returning ASN1_ITEM pointers
2994 instead of the ASN1_ITEM structures themselves. This adds several
2995 new macros which allow the underlying ASN1 function/structure to
2996 be accessed transparently. As a result code should not use ASN1_ITEM
2997 references directly (such as &X509_it) but instead use the relevant
2998 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
2999 use of the new ASN1 code on platforms where exporting structures
3000 is problematical (for example in shared libraries) but exporting
3001 functions returning pointers to structures is not.
3004 *) Add support for overriding the generation of SSL/TLS session IDs.
3005 These callbacks can be registered either in an SSL_CTX or per SSL.
3006 The purpose of this is to allow applications to control, if they wish,
3007 the arbitrary values chosen for use as session IDs, particularly as it
3008 can be useful for session caching in multiple-server environments. A
3009 command-line switch for testing this (and any client code that wishes
3010 to use such a feature) has been added to "s_server".
3011 [Geoff Thorpe, Lutz Jaenicke]
3013 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
3014 of the form '#if defined(...) || defined(...) || ...' and
3015 '#if !defined(...) && !defined(...) && ...'. This also avoids
3016 the growing number of special cases it was previously handling.
3019 *) Make all configuration macros available for application by making
3020 sure they are available in opensslconf.h, by giving them names starting
3021 with "OPENSSL_" to avoid conflicts with other packages and by making
3022 sure e_os2.h will cover all platform-specific cases together with
3024 Additionally, it is now possible to define configuration/platform-
3025 specific names (called "system identities"). In the C code, these
3026 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
3027 macro with the name beginning with "OPENSSL_SYS_", which is determined
3028 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
3032 *) New option -set_serial to 'req' and 'x509' this allows the serial
3033 number to use to be specified on the command line. Previously self
3034 signed certificates were hard coded with serial number 0 and the
3035 CA options of 'x509' had to use a serial number in a file which was
3039 *) New options to 'ca' utility to support V2 CRL entry extensions.
3040 Currently CRL reason, invalidity date and hold instruction are
3041 supported. Add new CRL extensions to V3 code and some new objects.
3044 *) New function EVP_CIPHER_CTX_set_padding() this is used to
3045 disable standard block padding (aka PKCS#5 padding) in the EVP
3046 API, which was previously mandatory. This means that the data is
3047 not padded in any way and so the total length much be a multiple
3048 of the block size, otherwise an error occurs.
3051 *) Initial (incomplete) OCSP SSL support.
3054 *) New function OCSP_parse_url(). This splits up a URL into its host,
3055 port and path components: primarily to parse OCSP URLs. New -url
3056 option to ocsp utility.
3059 *) New nonce behavior. The return value of OCSP_check_nonce() now
3060 reflects the various checks performed. Applications can decide
3061 whether to tolerate certain situations such as an absent nonce
3062 in a response when one was present in a request: the ocsp application
3063 just prints out a warning. New function OCSP_add1_basic_nonce()
3064 this is to allow responders to include a nonce in a response even if
3065 the request is nonce-less.
3068 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
3069 skipped when using openssl x509 multiple times on a single input file,
3070 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
3073 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
3074 set string type: to handle setting ASN1_TIME structures. Fix ca
3075 utility to correctly initialize revocation date of CRLs.
3078 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
3079 the clients preferred ciphersuites and rather use its own preferences.
3080 Should help to work around M$ SGC (Server Gated Cryptography) bug in
3081 Internet Explorer by ensuring unchanged hash method during stepup.
3082 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
3085 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
3086 to aes and add a new 'exist' option to print out symbols that don't
3090 *) Additional options to ocsp utility to allow flags to be set and
3091 additional certificates supplied.
3094 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
3095 OCSP client a number of certificate to only verify the response
3099 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
3100 handle the new API. Currently only ECB, CBC modes supported. Add new
3103 Add TLS AES ciphersuites as described in RFC3268, "Advanced
3104 Encryption Standard (AES) Ciphersuites for Transport Layer
3105 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
3106 not enabled by default and were not part of the "ALL" ciphersuite
3107 alias because they were not yet official; they could be
3108 explicitly requested by specifying the "AESdraft" ciphersuite
3109 group alias. In the final release of OpenSSL 0.9.7, the group
3110 alias is called "AES" and is part of "ALL".)
3111 [Ben Laurie, Steve Henson, Bodo Moeller]
3113 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
3114 request to response.
3117 *) Functions for OCSP responders. OCSP_request_onereq_count(),
3118 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
3119 extract information from a certificate request. OCSP_response_create()
3120 creates a response and optionally adds a basic response structure.
3121 OCSP_basic_add1_status() adds a complete single response to a basic
3122 response and returns the OCSP_SINGLERESP structure just added (to allow
3123 extensions to be included for example). OCSP_basic_add1_cert() adds a
3124 certificate to a basic response and OCSP_basic_sign() signs a basic
3125 response with various flags. New helper functions ASN1_TIME_check()
3126 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
3127 (converts ASN1_TIME to GeneralizedTime).
3130 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
3131 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
3132 structure from a certificate. X509_pubkey_digest() digests the public_key
3133 contents: this is used in various key identifiers.
3136 *) Make sk_sort() tolerate a NULL argument.
3137 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
3139 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
3140 passed by the function are trusted implicitly. If any of them signed the
3141 response then it is assumed to be valid and is not verified.
3144 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
3145 to data. This was previously part of the PKCS7 ASN1 code. This
3146 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
3147 [Steve Henson, reported by Kenneth R. Robinette
3148 <support@securenetterm.com>]
3150 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
3151 routines: without these tracing memory leaks is very painful.
3152 Fix leaks in PKCS12 and PKCS7 routines.
3155 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
3156 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
3157 effectively meant GeneralizedTime would never be used. Now it
3158 is initialised to -1 but X509_time_adj() now has to check the value
3159 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
3160 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
3161 [Steve Henson, reported by Kenneth R. Robinette
3162 <support@securenetterm.com>]
3164 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
3165 result in a zero length in the ASN1_INTEGER structure which was
3166 not consistent with the structure when d2i_ASN1_INTEGER() was used
3167 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
3168 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
3169 where it did not print out a minus for negative ASN1_INTEGER.
3172 *) Add summary printout to ocsp utility. The various functions which
3173 convert status values to strings have been renamed to:
3174 OCSP_response_status_str(), OCSP_cert_status_str() and
3175 OCSP_crl_reason_str() and are no longer static. New options
3176 to verify nonce values and to disable verification. OCSP response
3177 printout format cleaned up.
3180 *) Add additional OCSP certificate checks. These are those specified
3181 in RFC2560. This consists of two separate checks: the CA of the
3182 certificate being checked must either be the OCSP signer certificate
3183 or the issuer of the OCSP signer certificate. In the latter case the
3184 OCSP signer certificate must contain the OCSP signing extended key
3185 usage. This check is performed by attempting to match the OCSP
3186 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
3187 in the OCSP_CERTID structures of the response.
3190 *) Initial OCSP certificate verification added to OCSP_basic_verify()
3191 and related routines. This uses the standard OpenSSL certificate
3192 verify routines to perform initial checks (just CA validity) and
3193 to obtain the certificate chain. Then additional checks will be
3194 performed on the chain. Currently the root CA is checked to see
3195 if it is explicitly trusted for OCSP signing. This is used to set
3196 a root CA as a global signing root: that is any certificate that
3197 chains to that CA is an acceptable OCSP signing certificate.
3200 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
3201 extensions from a separate configuration file.
3202 As when reading extensions from the main configuration file,
3203 the '-extensions ...' option may be used for specifying the
3205 [Massimiliano Pala <madwolf@comune.modena.it>]
3207 *) New OCSP utility. Allows OCSP requests to be generated or
3208 read. The request can be sent to a responder and the output
3209 parsed, outputed or printed in text form. Not complete yet:
3210 still needs to check the OCSP response validity.
3213 *) New subcommands for 'openssl ca':
3214 'openssl ca -status <serial>' prints the status of the cert with
3215 the given serial number (according to the index file).
3216 'openssl ca -updatedb' updates the expiry status of certificates
3218 [Massimiliano Pala <madwolf@comune.modena.it>]
3220 *) New '-newreq-nodes' command option to CA.pl. This is like
3221 '-newreq', but calls 'openssl req' with the '-nodes' option
3222 so that the resulting key is not encrypted.
3223 [Damien Miller <djm@mindrot.org>]
3225 *) New configuration for the GNU Hurd.
3226 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
3228 *) Initial code to implement OCSP basic response verify. This
3229 is currently incomplete. Currently just finds the signer's
3230 certificate and verifies the signature on the response.
3233 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
3234 value of OPENSSLDIR. This is available via the new '-d' option
3235 to 'openssl version', and is also included in 'openssl version -a'.
3238 *) Allowing defining memory allocation callbacks that will be given
3239 file name and line number information in additional arguments
3240 (a const char* and an int). The basic functionality remains, as
3241 well as the original possibility to just replace malloc(),
3242 realloc() and free() by functions that do not know about these
3243 additional arguments. To register and find out the current
3244 settings for extended allocation functions, the following
3245 functions are provided:
3247 CRYPTO_set_mem_ex_functions
3248 CRYPTO_set_locked_mem_ex_functions
3249 CRYPTO_get_mem_ex_functions
3250 CRYPTO_get_locked_mem_ex_functions
3252 These work the same way as CRYPTO_set_mem_functions and friends.
3253 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
3254 extended allocation function is enabled.
3255 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
3256 a conventional allocation function is enabled.
3257 [Richard Levitte, Bodo Moeller]
3259 *) Finish off removing the remaining LHASH function pointer casts.
3260 There should no longer be any prototype-casting required when using
3261 the LHASH abstraction, and any casts that remain are "bugs". See
3262 the callback types and macros at the head of lhash.h for details
3263 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
3266 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
3267 If /dev/[u]random devices are not available or do not return enough
3268 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
3270 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
3271 /etc/entropy will be queried once each in this sequence, quering stops
3272 when enough entropy was collected without querying more sockets.
3275 *) Change the Unix RAND_poll() variant to be able to poll several
3276 random devices, as specified by DEVRANDOM, until a sufficient amount
3277 of data has been collected. We spend at most 10 ms on each file
3278 (select timeout) and read in non-blocking mode. DEVRANDOM now
3279 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
3280 (previously it was just the string "/dev/urandom"), so on typical
3281 platforms the 10 ms delay will never occur.
3282 Also separate out the Unix variant to its own file, rand_unix.c.
3283 For VMS, there's a currently-empty rand_vms.c.
3286 *) Move OCSP client related routines to ocsp_cl.c. These
3287 provide utility functions which an application needing
3288 to issue a request to an OCSP responder and analyse the
3289 response will typically need: as opposed to those which an
3290 OCSP responder itself would need which will be added later.
3292 OCSP_request_sign() signs an OCSP request with an API similar
3293 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
3294 response. OCSP_response_get1_basic() extracts basic response
3295 from response. OCSP_resp_find_status(): finds and extracts status
3296 information from an OCSP_CERTID structure (which will be created
3297 when the request structure is built). These are built from lower
3298 level functions which work on OCSP_SINGLERESP structures but
3299 wont normally be used unless the application wishes to examine
3300 extensions in the OCSP response for example.
3302 Replace nonce routines with a pair of functions.
3303 OCSP_request_add1_nonce() adds a nonce value and optionally
3304 generates a random value. OCSP_check_nonce() checks the
3305 validity of the nonce in an OCSP response.
3308 *) Change function OCSP_request_add() to OCSP_request_add0_id().
3309 This doesn't copy the supplied OCSP_CERTID and avoids the
3310 need to free up the newly created id. Change return type
3311 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
3312 This can then be used to add extensions to the request.
3313 Deleted OCSP_request_new(), since most of its functionality
3314 is now in OCSP_REQUEST_new() (and the case insensitive name
3315 clash) apart from the ability to set the request name which
3316 will be added elsewhere.
3319 *) Update OCSP API. Remove obsolete extensions argument from
3320 various functions. Extensions are now handled using the new
3321 OCSP extension code. New simple OCSP HTTP function which
3322 can be used to send requests and parse the response.
3325 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
3326 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
3327 uses the special reorder version of SET OF to sort the attributes
3328 and reorder them to match the encoded order. This resolves a long
3329 standing problem: a verify on a PKCS7 structure just after signing
3330 it used to fail because the attribute order did not match the
3331 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
3332 it uses the received order. This is necessary to tolerate some broken
3333 software that does not order SET OF. This is handled by encoding
3334 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
3335 to produce the required SET OF.
3338 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
3339 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
3340 files to get correct declarations of the ASN.1 item variables.
3343 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
3344 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
3345 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
3346 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
3347 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
3348 ASN1_ITEM and no wrapper functions.
3351 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
3352 replace the old function pointer based I/O routines. Change most of
3353 the *_d2i_bio() and *_d2i_fp() functions to use these.
3356 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
3357 lines, recognice more "algorithms" that can be deselected, and make
3358 it complain about algorithm deselection that isn't recognised.
3361 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
3362 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
3363 to use new functions. Add NO_ASN1_OLD which can be set to remove
3364 some old style ASN1 functions: this can be used to determine if old
3365 code will still work when these eventually go away.
3368 *) New extension functions for OCSP structures, these follow the
3369 same conventions as certificates and CRLs.
3372 *) New function X509V3_add1_i2d(). This automatically encodes and
3373 adds an extension. Its behaviour can be customised with various
3374 flags to append, replace or delete. Various wrappers added for
3375 certifcates and CRLs.
3378 *) Fix to avoid calling the underlying ASN1 print routine when
3379 an extension cannot be parsed. Correct a typo in the
3380 OCSP_SERVICELOC extension. Tidy up print OCSP format.
3383 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
3384 entries for variables.
3387 *) Add functionality to apps/openssl.c for detecting locking
3388 problems: As the program is single-threaded, all we have
3389 to do is register a locking callback using an array for
3390 storing which locks are currently held by the program.
3393 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
3394 SSL_get_ex_data_X509_STORE_idx(), which is used in
3395 ssl_verify_cert_chain() and thus can be called at any time
3396 during TLS/SSL handshakes so that thread-safety is essential.
3397 Unfortunately, the ex_data design is not at all suited
3398 for multi-threaded use, so it probably should be abolished.
3401 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
3402 [Broadcom, tweaked and integrated by Geoff Thorpe]
3404 *) Move common extension printing code to new function
3405 X509V3_print_extensions(). Reorganise OCSP print routines and
3406 implement some needed OCSP ASN1 functions. Add OCSP extensions.
3409 *) New function X509_signature_print() to remove duplication in some
3413 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
3414 set (this was treated exactly the same as SET OF previously). This
3415 is used to reorder the STACK representing the structure to match the
3416 encoding. This will be used to get round a problem where a PKCS7
3417 structure which was signed could not be verified because the STACK
3418 order did not reflect the encoded order.
3421 *) Reimplement the OCSP ASN1 module using the new code.
3424 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
3425 for its ASN1 operations. The old style function pointers still exist
3426 for now but they will eventually go away.
3429 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
3430 completely replaces the old ASN1 functionality with a table driven
3431 encoder and decoder which interprets an ASN1_ITEM structure describing
3432 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
3433 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
3434 has also been converted to the new form.
3437 *) Change BN_mod_exp_recp so that negative moduli are tolerated
3438 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
3439 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
3440 for negative moduli.
3443 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
3444 of not touching the result's sign bit.
3447 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
3451 *) Changed the LHASH code to use prototypes for callbacks, and created
3452 macros to declare and implement thin (optionally static) functions
3453 that provide type-safety and avoid function pointer casting for the
3454 type-specific callbacks.
3457 *) Added Kerberos Cipher Suites to be used with TLS, as written in
3459 [Veers Staats <staatsvr@asc.hpc.mil>,
3460 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
3462 *) Reformat the FAQ so the different questions and answers can be divided
3463 in sections depending on the subject.
3466 *) Have the zlib compression code load ZLIB.DLL dynamically under
3470 *) New function BN_mod_sqrt for computing square roots modulo a prime
3471 (using the probabilistic Tonelli-Shanks algorithm unless
3472 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
3473 be handled deterministically).
3474 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3476 *) Make BN_mod_inverse faster by explicitly handling small quotients
3477 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
3478 512 bits], about 30% for larger ones [1024 or 2048 bits].)
3481 *) New function BN_kronecker.
3484 *) Fix BN_gcd so that it works on negative inputs; the result is
3485 positive unless both parameters are zero.
3486 Previously something reasonably close to an infinite loop was
3487 possible because numbers could be growing instead of shrinking
3488 in the implementation of Euclid's algorithm.
3491 *) Fix BN_is_word() and BN_is_one() macros to take into account the
3492 sign of the number in question.
3494 Fix BN_is_word(a,w) to work correctly for w == 0.
3496 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
3497 because its test if the absolute value of 'a' equals 'w'.
3498 Note that BN_abs_is_word does *not* handle w == 0 reliably;
3499 it exists mostly for use in the implementations of BN_is_zero(),
3500 BN_is_one(), and BN_is_word().
3503 *) New function BN_swap.
3506 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
3507 the exponentiation functions are more likely to produce reasonable
3508 results on negative inputs.
3511 *) Change BN_mod_mul so that the result is always non-negative.
3512 Previously, it could be negative if one of the factors was negative;
3513 I don't think anyone really wanted that behaviour.
3516 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
3517 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
3518 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
3519 and add new functions:
3528 BN_mod_lshift1_quick
3532 These functions always generate non-negative results.
3534 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
3535 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
3537 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
3538 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
3539 be reduced modulo m.
3540 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3543 The following entry accidentily appeared in the CHANGES file
3544 distributed with OpenSSL 0.9.7. The modifications described in
3545 it do *not* apply to OpenSSL 0.9.7.
3547 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3548 was actually never needed) and in BN_mul(). The removal in BN_mul()
3549 required a small change in bn_mul_part_recursive() and the addition
3550 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3551 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3552 bn_sub_words() and bn_add_words() except they take arrays with
3557 *) In 'openssl passwd', verify passwords read from the terminal
3558 unless the '-salt' option is used (which usually means that
3559 verification would just waste user's time since the resulting
3560 hash is going to be compared with some given password hash)
3561 or the new '-noverify' option is used.
3563 This is an incompatible change, but it does not affect
3564 non-interactive use of 'openssl passwd' (passwords on the command
3565 line, '-stdin' option, '-in ...' option) and thus should not
3569 *) Remove all references to RSAref, since there's no more need for it.
3572 *) Make DSO load along a path given through an environment variable
3573 (SHLIB_PATH) with shl_load().
3576 *) Constify the ENGINE code as a result of BIGNUM constification.
3577 Also constify the RSA code and most things related to it. In a
3578 few places, most notable in the depth of the ASN.1 code, ugly
3579 casts back to non-const were required (to be solved at a later
3583 *) Make it so the openssl application has all engines loaded by default.
3586 *) Constify the BIGNUM routines a little more.
3589 *) Add the following functions:
3591 ENGINE_load_cswift()
3593 ENGINE_load_atalla()
3595 ENGINE_load_builtin_engines()
3597 That way, an application can itself choose if external engines that
3598 are built-in in OpenSSL shall ever be used or not. The benefit is
3599 that applications won't have to be linked with libdl or other dso
3600 libraries unless it's really needed.
3602 Changed 'openssl engine' to load all engines on demand.
3603 Changed the engine header files to avoid the duplication of some
3604 declarations (they differed!).
3607 *) 'openssl engine' can now list capabilities.
3610 *) Better error reporting in 'openssl engine'.
3613 *) Never call load_dh_param(NULL) in s_server.
3616 *) Add engine application. It can currently list engines by name and
3617 identity, and test if they are actually available.
3620 *) Improve RPM specification file by forcing symbolic linking and making
3621 sure the installed documentation is also owned by root.root.
3622 [Damien Miller <djm@mindrot.org>]
3624 *) Give the OpenSSL applications more possibilities to make use of
3625 keys (public as well as private) handled by engines.
3628 *) Add OCSP code that comes from CertCo.
3631 *) Add VMS support for the Rijndael code.
3634 *) Added untested support for Nuron crypto accelerator.
3637 *) Add support for external cryptographic devices. This code was
3638 previously distributed separately as the "engine" branch.
3639 [Geoff Thorpe, Richard Levitte]
3641 *) Rework the filename-translation in the DSO code. It is now possible to
3642 have far greater control over how a "name" is turned into a filename
3643 depending on the operating environment and any oddities about the
3644 different shared library filenames on each system.
3647 *) Support threads on FreeBSD-elf in Configure.
3650 *) Fix for SHA1 assembly problem with MASM: it produces
3651 warnings about corrupt line number information when assembling
3652 with debugging information. This is caused by the overlapping
3654 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
3657 NCONF_get_number() has no error checking at all. As a replacement,
3658 NCONF_get_number_e() is defined (_e for "error checking") and is
3659 promoted strongly. The old NCONF_get_number is kept around for
3660 binary backward compatibility.
3661 Make it possible for methods to load from something other than a BIO,
3662 by providing a function pointer that is given a name instead of a BIO.
3663 For example, this could be used to load configuration data from an
3667 *) Fix for non blocking accept BIOs. Added new I/O special reason
3668 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
3669 with non blocking I/O was not possible because no retry code was
3670 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
3674 *) Added the beginnings of Rijndael support.
3677 *) Fix for bug in DirectoryString mask setting. Add support for
3678 X509_NAME_print_ex() in 'req' and X509_print_ex() function