5 Changes between 0.9.8b and 0.9.9 [xx XXX xxxx]
7 *) In addition to the numerical (unsigned long) thread ID, provide
8 for a pointer (void *) thread ID. This helps accomodate systems
9 that do not provide an unsigned long thread ID. OpenSSL assumes
10 it is in the same thread iff both the numerical and the pointer
11 thread ID agree; so applications are just required to define one
12 of them appropriately (e.g., by using a pointer to a per-thread
13 memory object malloc()ed by the application for the pointer-type
14 thread ID). Exactly analoguous to the existing functions
16 void CRYPTO_set_id_callback(unsigned long (*func)(void));
17 unsigned long (*CRYPTO_get_id_callback(void))(void);
18 unsigned long CRYPTO_thread_id(void);
20 we now have additional functions
22 void CRYPTO_set_idptr_callback(void *(*func)(void));
23 void *(*CRYPTO_get_idptr_callback(void))(void);
24 void *CRYPTO_thread_idptr(void);
26 also in <openssl/crypto.h>. The default value for
27 CRYPTO_thread_idptr() if the application has not provided its own
31 *) Change the array representation of binary polynomials: the list
32 of degrees of non-zero coefficients is now terminated with -1.
33 Previously it was terminated with 0, which was also part of the
34 value; thus, the array representation was not applicable to
35 polynomials where t^0 has coefficient zero. This change makes
36 the array representation useful in a more general context.
39 *) Various modifications and fixes to SSL/TLS cipher string
40 handling. For ECC, the code now distinguishes between fixed ECDH
41 with RSA certificates on the one hand and with ECDSA certificates
42 on the other hand, since these are separate ciphersuites. The
43 unused code for Fortezza ciphersuites has been removed.
45 For consistency with EDH, ephemeral ECDH is now called "EECDH"
46 (not "ECDHE"). For consistency with the code for DH
47 certificates, use of ECDH certificates is now considered ECDH
48 authentication, not RSA or ECDSA authentication (the latter is
49 merely the CA's signing algorithm and not actively used in the
52 The temporary ciphersuite alias "ECCdraft" is no longer
53 available, and ECC ciphersuites are no longer excluded from "ALL"
54 and "DEFAULT". The following aliases now exist for RFC 4492
55 ciphersuites, most of these by analogy with the DH case:
57 kECDHr - ECDH cert, signed with RSA
58 kECDHe - ECDH cert, signed with ECDSA
59 kECDH - ECDH cert (signed with either RSA or ECDSA)
60 kEECDH - ephemeral ECDH
61 ECDH - ECDH cert or ephemeral ECDH
67 AECDH - anonymous ECDH
68 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
72 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
73 Use correct micalg parameters depending on digest(s) in signed message.
76 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
77 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
80 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
81 an engine to register a method. Add ENGINE lookups for methods and
82 functional reference processing.
85 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
86 EVP_{Sign,Verify}* which allow an application to customise the signature
90 *) New -resign option to smime utility. This adds one or more signers
91 to an existing PKCS#7 signedData structure. Also -md option to use an
92 alternative message digest algorithm for signing.
95 *) Tidy up PKCS#7 routines and add new functions to make it easier to
96 create PKCS7 structures containing multiple signers. Update smime
97 application to support multiple signers.
100 *) New -macalg option to pkcs12 utility to allow setting of an alternative
104 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
105 Reorganize PBE internals to lookup from a static table using NIDs,
106 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
107 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
108 PRF which will be automatically used with PBES2.
111 *) Replace the algorithm specific calls to generate keys in "req" with the
115 *) Update PKCS#7 enveloped data routines to use new API. This is now
116 supported by any public key method supporting the encrypt operation. A
117 ctrl is added to allow the public key algorithm to examine or modify
118 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
122 *) Add a ctrl to asn1 method to allow a public key algorithm to express
123 a default digest type to use. In most cases this will be SHA1 but some
124 algorithms (such as GOST) need to specify an alternative digest. The
125 return value indicates how strong the prefernce is 1 means optional and
126 2 is mandatory (that is it is the only supported type). Modify
127 ASN1_item_sign() to accept a NULL digest argument to indicate it should
128 use the default md. Update openssl utilities to use the default digest
129 type for signing if it is not explicitly indicated.
132 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
133 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
134 signing method from the key type. This effectively removes the link
135 between digests and public key types.
138 *) Add an OID cross reference table and utility functions. Its purpose is to
139 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
140 rsaEncryption. This will allow some of the algorithm specific hackery
141 needed to use the correct OID to be removed.
144 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
145 structures for PKCS7_sign(). They are now set up by the relevant public
149 *) Add provisional EC pkey method with support for ECDSA and ECDH.
152 *) Add support for key derivation (agreement) in the API, DH method and
156 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
157 public and private key formats. As a side effect these add additional
158 command line functionality not previously available: DSA signatures can be
159 generated and verified using pkeyutl and DH key support and generation in
164 [Oliver Tappe <zooey@hirschkaefer.de>]
166 *) New make target "install_html_docs" installs HTML renditions of the
168 [Oliver Tappe <zooey@hirschkaefer.de>]
170 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
171 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
172 support key and parameter generation and add initial key generation
173 functionality for RSA.
176 *) Add functions for main EVP_PKEY_method operations. The undocumented
177 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
178 EVP_PKEY_{encrypt,decrypt}_old.
181 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
182 key API, doesn't do much yet.
185 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
186 public key algorithms. New option to openssl utility:
187 "list-public-key-algorithms" to print out info.
190 *) Implement the Supported Elliptic Curves Extension for
191 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
194 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
195 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
198 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
199 utilities such as rsa, dsa, dsaparam etc except they process any key
203 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
204 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
205 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
209 *) Initial support for pluggable public key ASN1.
210 De-spaghettify the public key ASN1 handling. Move public and private
211 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
212 algorithm specific handling to a single module within the relevant
213 algorithm directory. Add functions to allow (near) opaque processing
214 of public and private key structures.
217 *) Implement the Supported Point Formats Extension for
218 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
221 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
222 for the psk identity [hint] and the psk callback functions to the
223 SSL_SESSION, SSL and SSL_CTX structure.
226 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
230 SSL_CTX_use_psk_identity_hint
231 SSL_get_psk_identity_hint
233 SSL_use_psk_identity_hint
235 [Mika Kousa and Pasi Eronen of Nokia Corporation]
237 *) Add RFC 3161 compliant time stamp request creation, response generation
238 and response verification functionality.
239 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
241 *) Add initial support for TLS extensions, specifically for the server_name
242 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
243 have new members for a host name. The SSL data structure has an
244 additional member SSL_CTX *initial_ctx so that new sessions can be
245 stored in that context to allow for session resumption, even after the
246 SSL has been switched to a new SSL_CTX in reaction to a client's
247 server_name extension.
249 New functions (subject to change):
252 SSL_get_servername_type()
255 New CTRL codes and macros (subject to change):
257 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
258 - SSL_CTX_set_tlsext_servername_callback()
259 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
260 - SSL_CTX_set_tlsext_servername_arg()
261 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_hostname()
263 openssl s_client has a new '-servername ...' option.
265 openssl s_server has new options '-servername_host ...', '-cert2 ...',
266 '-key2 ...', '-servername_fatal' (subject to change). This allows
267 testing the HostName extension for a specific single host name ('-cert'
268 and '-key' remain fallbacks for handshakes without HostName
269 negotiation). If the unrecogninzed_name alert has to be sent, this by
270 default is a warning; it becomes fatal with the '-servername_fatal'
273 [Peter Sylvester, Remy Allais, Christophe Renou]
275 *) Whirlpool hash implementation is added.
278 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
279 bn(64,32). Because of instruction set limitations it doesn't have
280 any negative impact on performance. This was done mostly in order
281 to make it possible to share assembler modules, such as bn_mul_mont
282 implementations, between 32- and 64-bit builds without hassle.
285 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
286 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
290 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
291 dedicated Montgomery multiplication procedure, is introduced.
292 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
293 "64-bit" performance on certain 32-bit targets.
296 *) New option SSL_OP_NO_COMP to disable use of compression selectively
297 in SSL structures. New SSL ctrl to set maximum send fragment size.
298 Save memory by seeting the I/O buffer sizes dynamically instead of
299 using the maximum available value.
302 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
303 in addition to the text details.
306 *) Very, very preliminary EXPERIMENTAL support for printing of general
307 ASN1 structures. This currently produces rather ugly output and doesn't
308 handle several customised structures at all.
311 *) Integrated support for PVK file format and some related formats such
312 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
313 these in the 'rsa' and 'dsa' utilities.
316 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
319 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
320 place for the (very old) "NETSCAPE" format certificates which are now
321 handled using new ASN1 code equivalents.
324 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
325 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
326 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
329 *) Modify CRL distribution points extension code to print out previously
330 unsupported fields. Enhance extension setting code to allow setting of
334 *) Add print and set support for Issuing Distribution Point CRL extension.
337 *) Change 'Configure' script to enable Camellia by default.
340 Changes between 0.9.8b and 0.9.8c [xx XXX xxxx]
342 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
343 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
344 cannot be implicitly activated as part of, e.g., the "AES" alias.
345 However, please upgrade to OpenSSL 0.9.9[-dev] for
346 non-experimental use of the ECC ciphersuites to get TLS extension
347 support, which is required for curve and point format negotiation
348 to avoid potential handshake problems.
351 *) Disable rogue ciphersuites:
353 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
354 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
355 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
357 The latter two were purportedly from
358 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
361 Also deactive the remaining ciphersuites from
362 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
363 unofficial, and the ID has long expired.
366 *) Fix RSA blinding Heisenbug (problems sometimes occured on
367 dual-core machines) and other potential thread-safety issues.
370 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
371 versions), which is now available for royalty-free use
372 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
373 Also, add Camellia TLS ciphersuites from RFC 4132.
375 To minimize changes between patchlevels in the OpenSSL 0.9.8
376 series, Camellia remains excluded from compilation unless OpenSSL
377 is configured with 'enable-camellia'.
380 *) Disable the padding bug check when compression is in use. The padding
381 bug check assumes the first packet is of even length, this is not
382 necessarily true if compresssion is enabled and can result in false
383 positives causing handshake failure. The actual bug test is ancient
384 code so it is hoped that implementations will either have fixed it by
385 now or any which still have the bug do not support compression.
388 Changes between 0.9.8a and 0.9.8b [04 May 2006]
390 *) When applying a cipher rule check to see if string match is an explicit
391 cipher suite and only match that one cipher suite if it is.
394 *) Link in manifests for VC++ if needed.
395 [Austin Ziegler <halostatue@gmail.com>]
397 *) Update support for ECC-based TLS ciphersuites according to
398 draft-ietf-tls-ecc-12.txt with proposed changes (but without
399 TLS extensions, which are supported starting with the 0.9.9
400 branch, not in the OpenSSL 0.9.8 branch).
403 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
404 opaque EVP_CIPHER_CTX handling.
407 *) Fixes and enhancements to zlib compression code. We now only use
408 "zlib1.dll" and use the default __cdecl calling convention on Win32
409 to conform with the standards mentioned here:
410 http://www.zlib.net/DLL_FAQ.txt
411 Static zlib linking now works on Windows and the new --with-zlib-include
412 --with-zlib-lib options to Configure can be used to supply the location
413 of the headers and library. Gracefully handle case where zlib library
417 *) Several fixes and enhancements to the OID generation code. The old code
418 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
419 handle numbers larger than ULONG_MAX, truncated printing and had a
420 non standard OBJ_obj2txt() behaviour.
423 *) Add support for building of engines under engine/ as shared libraries
424 under VC++ build system.
427 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
428 Hopefully, we will not see any false combination of paths any more.
431 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
433 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
434 (part of SSL_OP_ALL). This option used to disable the
435 countermeasure against man-in-the-middle protocol-version
436 rollback in the SSL 2.0 server implementation, which is a bad
437 idea. (CVE-2005-2969)
439 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
440 for Information Security, National Institute of Advanced Industrial
441 Science and Technology [AIST], Japan)]
443 *) Add two function to clear and return the verify parameter flags.
446 *) Keep cipherlists sorted in the source instead of sorting them at
447 runtime, thus removing the need for a lock.
450 *) Avoid some small subgroup attacks in Diffie-Hellman.
451 [Nick Mathewson and Ben Laurie]
453 *) Add functions for well-known primes.
456 *) Extended Windows CE support.
457 [Satoshi Nakamura and Andy Polyakov]
459 *) Initialize SSL_METHOD structures at compile time instead of during
460 runtime, thus removing the need for a lock.
463 *) Make PKCS7_decrypt() work even if no certificate is supplied by
464 attempting to decrypt each encrypted key in turn. Add support to
468 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
470 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
473 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
476 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
477 key into the same file any more.
480 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
483 *) Add -utf8 command line and config file option to 'ca'.
484 [Stefan <stf@udoma.org]
486 *) Removed the macro des_crypt(), as it seems to conflict with some
487 libraries. Use DES_crypt().
490 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
491 involves renaming the source and generated shared-libs for
492 both. The engines will accept the corrected or legacy ids
493 ('ncipher' and '4758_cca' respectively) when binding. NB,
494 this only applies when building 'shared'.
495 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
497 *) Add attribute functions to EVP_PKEY structure. Modify
498 PKCS12_create() to recognize a CSP name attribute and
499 use it. Make -CSP option work again in pkcs12 utility.
502 *) Add new functionality to the bn blinding code:
503 - automatic re-creation of the BN_BLINDING parameters after
504 a fixed number of uses (currently 32)
505 - add new function for parameter creation
506 - introduce flags to control the update behaviour of the
507 BN_BLINDING parameters
508 - hide BN_BLINDING structure
509 Add a second BN_BLINDING slot to the RSA structure to improve
510 performance when a single RSA object is shared among several
514 *) Add support for DTLS.
515 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
517 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
518 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
521 *) Remove buggy and incompletet DH cert support from
522 ssl/ssl_rsa.c and ssl/s3_both.c
525 *) Use SHA-1 instead of MD5 as the default digest algorithm for
526 the apps/openssl applications.
529 *) Compile clean with "-Wall -Wmissing-prototypes
530 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
531 DEBUG_SAFESTACK must also be set.
534 *) Change ./Configure so that certain algorithms can be disabled by default.
535 The new counterpiece to "no-xxx" is "enable-xxx".
537 The patented RC5 and MDC2 algorithms will now be disabled unless
538 "enable-rc5" and "enable-mdc2", respectively, are specified.
540 (IDEA remains enabled despite being patented. This is because IDEA
541 is frequently required for interoperability, and there is no license
542 fee for non-commercial use. As before, "no-idea" can be used to
543 avoid this algorithm.)
547 *) Add processing of proxy certificates (see RFC 3820). This work was
548 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
549 EGEE (Enabling Grids for E-science in Europe).
552 *) RC4 performance overhaul on modern architectures/implementations, such
553 as Intel P4, IA-64 and AMD64.
556 *) New utility extract-section.pl. This can be used specify an alternative
557 section number in a pod file instead of having to treat each file as
558 a separate case in Makefile. This can be done by adding two lines to the
561 =for comment openssl_section:XXX
563 The blank line is mandatory.
567 *) New arguments -certform, -keyform and -pass for s_client and s_server
568 to allow alternative format key and certificate files and passphrase
572 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
573 update associated structures and add various utility functions.
575 Add new policy related verify parameters, include policy checking in
576 standard verify code. Enhance 'smime' application with extra parameters
577 to support policy checking and print out.
580 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
581 Nehemiah processors. These extensions support AES encryption in hardware
582 as well as RNG (though RNG support is currently disabled).
583 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
585 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
588 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
589 [Andy Polyakov and a number of other people]
591 *) Improved PowerPC platform support. Most notably BIGNUM assembler
592 implementation contributed by IBM.
593 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
595 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
596 exponent rather than 'unsigned long'. There is a corresponding change to
597 the new 'rsa_keygen' element of the RSA_METHOD structure.
598 [Jelte Jansen, Geoff Thorpe]
600 *) Functionality for creating the initial serial number file is now
601 moved from CA.pl to the 'ca' utility with a new option -create_serial.
603 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
604 number file to 1, which is bound to cause problems. To avoid
605 the problems while respecting compatibility between different 0.9.7
606 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
607 CA.pl for serial number initialization. With the new release 0.9.8,
608 we can fix the problem directly in the 'ca' utility.)
611 *) Reduced header interdepencies by declaring more opaque objects in
612 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
613 give fewer recursive includes, which could break lazy source code - so
614 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
615 developers should define this symbol when building and using openssl to
616 ensure they track the recommended behaviour, interfaces, [etc], but
617 backwards-compatible behaviour prevails when this isn't defined.
620 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
623 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
624 This will generate a random key of the appropriate length based on the
625 cipher context. The EVP_CIPHER can provide its own random key generation
626 routine to support keys of a specific form. This is used in the des and
627 3des routines to generate a key of the correct parity. Update S/MIME
628 code to use new functions and hence generate correct parity DES keys.
629 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
630 valid (weak or incorrect parity).
633 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
634 as looking them up. This is useful when the verified structure may contain
635 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
636 present unless the new PKCS7_NO_CRL flag is asserted.
639 *) Extend ASN1 oid configuration module. It now additionally accepts the
642 shortName = some long name, 1.2.3.4
645 *) Reimplemented the BN_CTX implementation. There is now no more static
646 limitation on the number of variables it can handle nor the depth of the
647 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
648 information can now expand as required, and rather than having a single
649 static array of bignums, BN_CTX now uses a linked-list of such arrays
650 allowing it to expand on demand whilst maintaining the usefulness of
654 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
655 to allow all RSA operations to function using a single BN_CTX.
658 *) Preliminary support for certificate policy evaluation and checking. This
659 is initially intended to pass the tests outlined in "Conformance Testing
660 of Relying Party Client Certificate Path Processing Logic" v1.07.
663 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
664 remained unused and not that useful. A variety of other little bignum
665 tweaks and fixes have also been made continuing on from the audit (see
669 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
670 associated ASN1, EVP and SSL functions and old ASN1 macros.
673 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
674 and this should never fail. So the return value from the use of
675 BN_set_word() (which can fail due to needless expansion) is now deprecated;
676 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
679 *) BN_CTX_get() should return zero-valued bignums, providing the same
680 initialised value as BN_new().
681 [Geoff Thorpe, suggested by Ulf Möller]
683 *) Support for inhibitAnyPolicy certificate extension.
686 *) An audit of the BIGNUM code is underway, for which debugging code is
687 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
688 is considered valid when processing BIGNUMs, and causes execution to
689 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
690 further steps are taken to deliberately pollute unused data in BIGNUM
691 structures to try and expose faulty code further on. For now, openssl will
692 (in its default mode of operation) continue to tolerate the inconsistent
693 forms that it has tolerated in the past, but authors and packagers should
694 consider trying openssl and their own applications when compiled with
695 these debugging symbols defined. It will help highlight potential bugs in
696 their own code, and will improve the test coverage for OpenSSL itself. At
697 some point, these tighter rules will become openssl's default to improve
698 maintainability, though the assert()s and other overheads will remain only
699 in debugging configurations. See bn.h for more details.
700 [Geoff Thorpe, Nils Larsch, Ulf Möller]
702 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
703 that can only be obtained through BN_CTX_new() (which implicitly
704 initialises it). The presence of this function only made it possible
705 to overwrite an existing structure (and cause memory leaks).
708 *) Because of the callback-based approach for implementing LHASH as a
709 template type, lh_insert() adds opaque objects to hash-tables and
710 lh_doall() or lh_doall_arg() are typically used with a destructor callback
711 to clean up those corresponding objects before destroying the hash table
712 (and losing the object pointers). So some over-zealous constifications in
713 LHASH have been relaxed so that lh_insert() does not take (nor store) the
714 objects as "const" and the lh_doall[_arg] callback wrappers are not
715 prototyped to have "const" restrictions on the object pointers they are
716 given (and so aren't required to cast them away any more).
719 *) The tmdiff.h API was so ugly and minimal that our own timing utility
720 (speed) prefers to use its own implementation. The two implementations
721 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
722 its object type properly exposed (MS_TM) instead of casting to/from "char
723 *". This may still change yet if someone realises MS_TM and "ms_time_***"
724 aren't necessarily the greatest nomenclatures - but this is what was used
725 internally to the implementation so I've used that for now.
728 *) Ensure that deprecated functions do not get compiled when
729 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
730 the self-tests were still using deprecated key-generation functions so
731 these have been updated also.
734 *) Reorganise PKCS#7 code to separate the digest location functionality
735 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
736 New function PKCS7_set_digest() to set the digest type for PKCS#7
737 digestedData type. Add additional code to correctly generate the
738 digestedData type and add support for this type in PKCS7 initialization
742 *) New function PKCS7_set0_type_other() this initializes a PKCS7
743 structure of type "other".
746 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
747 sure the loop does correctly stop and breaking ("division by zero")
748 modulus operations are not performed. The (pre-generated) prime
749 table crypto/bn/bn_prime.h was already correct, but it could not be
750 re-generated on some platforms because of the "division by zero"
751 situation in the script.
752 [Ralf S. Engelschall]
754 *) Update support for ECC-based TLS ciphersuites according to
755 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
756 SHA-1 now is only used for "small" curves (where the
757 representation of a field element takes up to 24 bytes); for
758 larger curves, the field element resulting from ECDH is directly
759 used as premaster secret.
760 [Douglas Stebila (Sun Microsystems Laboratories)]
762 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
763 curve secp160r1 to the tests.
764 [Douglas Stebila (Sun Microsystems Laboratories)]
766 *) Add the possibility to load symbols globally with DSO.
767 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
769 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
770 control of the error stack.
773 *) Add support for STORE in ENGINE.
776 *) Add the STORE type. The intention is to provide a common interface
777 to certificate and key stores, be they simple file-based stores, or
778 HSM-type store, or LDAP stores, or...
779 NOTE: The code is currently UNTESTED and isn't really used anywhere.
782 *) Add a generic structure called OPENSSL_ITEM. This can be used to
783 pass a list of arguments to any function as well as provide a way
784 for a function to pass data back to the caller.
787 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
788 works like BUF_strdup() but can be used to duplicate a portion of
789 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
793 *) Add the function sk_find_ex() which works like sk_find(), but will
794 return an index to an element even if an exact match couldn't be
795 found. The index is guaranteed to point at the element where the
796 searched-for key would be inserted to preserve sorting order.
799 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
800 takes an extra flags argument for optional functionality. Currently,
801 the following flags are defined:
803 OBJ_BSEARCH_VALUE_ON_NOMATCH
804 This one gets OBJ_bsearch_ex() to return a pointer to the first
805 element where the comparing function returns a negative or zero
808 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
809 This one gets OBJ_bsearch_ex() to return a pointer to the first
810 element where the comparing function returns zero. This is useful
811 if there are more than one element where the comparing function
815 *) Make it possible to create self-signed certificates with 'openssl ca'
816 in such a way that the self-signed certificate becomes part of the
817 CA database and uses the same mechanisms for serial number generation
818 as all other certificate signing. The new flag '-selfsign' enables
819 this functionality. Adapt CA.sh and CA.pl.in.
822 *) Add functionality to check the public key of a certificate request
823 against a given private. This is useful to check that a certificate
824 request can be signed by that key (self-signing).
827 *) Make it possible to have multiple active certificates with the same
828 subject in the CA index file. This is done only if the keyword
829 'unique_subject' is set to 'no' in the main CA section (default
830 if 'CA_default') of the configuration file. The value is saved
831 with the database itself in a separate index attribute file,
832 named like the index file with '.attr' appended to the name.
835 *) Generate muti valued AVAs using '+' notation in config files for
839 *) Support for nameConstraints certificate extension.
842 *) Support for policyConstraints certificate extension.
845 *) Support for policyMappings certificate extension.
848 *) Make sure the default DSA_METHOD implementation only uses its
849 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
850 and change its own handlers to be NULL so as to remove unnecessary
851 indirection. This lets alternative implementations fallback to the
852 default implementation more easily.
855 *) Support for directoryName in GeneralName related extensions
859 *) Make it possible to link applications using Makefile.shared.
860 Make that possible even when linking against static libraries!
863 *) Support for single pass processing for S/MIME signing. This now
864 means that S/MIME signing can be done from a pipe, in addition
865 cleartext signing (multipart/signed type) is effectively streaming
866 and the signed data does not need to be all held in memory.
868 This is done with a new flag PKCS7_STREAM. When this flag is set
869 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
870 is done after the data is output (and digests calculated) in
874 *) Add full support for -rpath/-R, both in shared libraries and
875 applications, at least on the platforms where it's known how
879 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
880 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
881 will now compute a table of multiples of the generator that
882 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
883 faster (notably in the case of a single point multiplication,
885 [Nils Larsch, Bodo Moeller]
887 *) IPv6 support for certificate extensions. The various extensions
888 which use the IP:a.b.c.d can now take IPv6 addresses using the
889 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
893 *) Added an ENGINE that implements RSA by performing private key
894 exponentiations with the GMP library. The conversions to and from
895 GMP's mpz_t format aren't optimised nor are any montgomery forms
896 cached, and on x86 it appears OpenSSL's own performance has caught up.
897 However there are likely to be other architectures where GMP could
898 provide a boost. This ENGINE is not built in by default, but it can be
899 specified at Configure time and should be accompanied by the necessary
900 linker additions, eg;
901 ./config -DOPENSSL_USE_GMP -lgmp
904 *) "openssl engine" will not display ENGINE/DSO load failure errors when
905 testing availability of engines with "-t" - the old behaviour is
906 produced by increasing the feature's verbosity with "-tt".
909 *) ECDSA routines: under certain error conditions uninitialized BN objects
910 could be freed. Solution: make sure initialization is performed early
911 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
915 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
916 and DH_METHOD (eg. by ENGINE implementations) to override the normal
917 software implementations. For DSA and DH, parameter generation can
918 also be overriden by providing the appropriate method callbacks.
921 *) Change the "progress" mechanism used in key-generation and
922 primality testing to functions that take a new BN_GENCB pointer in
923 place of callback/argument pairs. The new API functions have "_ex"
924 postfixes and the older functions are reimplemented as wrappers for
925 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
926 declarations of the old functions to help (graceful) attempts to
927 migrate to the new functions. Also, the new key-generation API
928 functions operate on a caller-supplied key-structure and return
929 success/failure rather than returning a key or NULL - this is to
930 help make "keygen" another member function of RSA_METHOD etc.
932 Example for using the new callback interface:
934 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
938 BN_GENCB_set(&my_cb, my_callback, my_arg);
940 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
941 /* For the meaning of a, b in calls to my_callback(), see the
942 * documentation of the function that calls the callback.
943 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
944 * my_callback should return 1 if it wants BN_is_prime_ex()
945 * to continue, or 0 to stop.
950 *) Change the ZLIB compression method to be stateful, and make it
951 available to TLS with the number defined in
952 draft-ietf-tls-compression-04.txt.
955 *) Add the ASN.1 structures and functions for CertificatePair, which
956 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
958 CertificatePair ::= SEQUENCE {
959 forward [0] Certificate OPTIONAL,
960 reverse [1] Certificate OPTIONAL,
961 -- at least one of the pair shall be present -- }
963 Also implement the PEM functions to read and write certificate
964 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
966 This needed to be defined, mostly for the sake of the LDAP
967 attribute crossCertificatePair, but may prove useful elsewhere as
971 *) Make it possible to inhibit symlinking of shared libraries in
972 Makefile.shared, for Cygwin's sake.
975 *) Extend the BIGNUM API by creating a function
976 void BN_set_negative(BIGNUM *a, int neg);
977 and a macro that behave like
978 int BN_is_negative(const BIGNUM *a);
980 to avoid the need to access 'a->neg' directly in applications.
983 *) Implement fast modular reduction for pseudo-Mersenne primes
984 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
985 EC_GROUP_new_curve_GFp() will now automatically use this
987 [Nils Larsch <nla@trustcenter.de>]
989 *) Add new lock type (CRYPTO_LOCK_BN).
992 *) Change the ENGINE framework to automatically load engines
993 dynamically from specific directories unless they could be
994 found to already be built in or loaded. Move all the
995 current engines except for the cryptodev one to a new
997 The engines in engines/ are built as shared libraries if
998 the "shared" options was given to ./Configure or ./config.
999 Otherwise, they are inserted in libcrypto.a.
1000 /usr/local/ssl/engines is the default directory for dynamic
1001 engines, but that can be overriden at configure time through
1002 the usual use of --prefix and/or --openssldir, and at run
1003 time with the environment variable OPENSSL_ENGINES.
1004 [Geoff Thorpe and Richard Levitte]
1006 *) Add Makefile.shared, a helper makefile to build shared
1007 libraries. Addapt Makefile.org.
1010 *) Add version info to Win32 DLLs.
1011 [Peter 'Luna' Runestig" <peter@runestig.com>]
1013 *) Add new 'medium level' PKCS#12 API. Certificates and keys
1014 can be added using this API to created arbitrary PKCS#12
1015 files while avoiding the low level API.
1017 New options to PKCS12_create(), key or cert can be NULL and
1018 will then be omitted from the output file. The encryption
1019 algorithm NIDs can be set to -1 for no encryption, the mac
1020 iteration count can be set to 0 to omit the mac.
1022 Enhance pkcs12 utility by making the -nokeys and -nocerts
1023 options work when creating a PKCS#12 file. New option -nomac
1024 to omit the mac, NONE can be set for an encryption algorithm.
1025 New code is modified to use the enhanced PKCS12_create()
1026 instead of the low level API.
1029 *) Extend ASN1 encoder to support indefinite length constructed
1030 encoding. This can output sequences tags and octet strings in
1031 this form. Modify pk7_asn1.c to support indefinite length
1032 encoding. This is experimental and needs additional code to
1033 be useful, such as an ASN1 bio and some enhanced streaming
1036 Extend template encode functionality so that tagging is passed
1037 down to the template encoder.
1040 *) Let 'openssl req' fail if an argument to '-newkey' is not
1041 recognized instead of using RSA as a default.
1044 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
1045 As these are not official, they are not included in "ALL";
1046 the "ECCdraft" ciphersuite group alias can be used to select them.
1047 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
1049 *) Add ECDH engine support.
1050 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
1052 *) Add ECDH in new directory crypto/ecdh/.
1053 [Douglas Stebila (Sun Microsystems Laboratories)]
1055 *) Let BN_rand_range() abort with an error after 100 iterations
1056 without success (which indicates a broken PRNG).
1059 *) Change BN_mod_sqrt() so that it verifies that the input value
1060 is really the square of the return value. (Previously,
1061 BN_mod_sqrt would show GIGO behaviour.)
1064 *) Add named elliptic curves over binary fields from X9.62, SECG,
1065 and WAP/WTLS; add OIDs that were still missing.
1067 [Sheueling Chang Shantz and Douglas Stebila
1068 (Sun Microsystems Laboratories)]
1070 *) Extend the EC library for elliptic curves over binary fields
1071 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
1074 EC_GF2m_simple_method
1078 EC_GROUP_new_curve_GF2m
1079 EC_GROUP_set_curve_GF2m
1080 EC_GROUP_get_curve_GF2m
1081 EC_POINT_set_affine_coordinates_GF2m
1082 EC_POINT_get_affine_coordinates_GF2m
1083 EC_POINT_set_compressed_coordinates_GF2m
1085 Point compression for binary fields is disabled by default for
1086 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
1089 As binary polynomials are represented as BIGNUMs, various members
1090 of the EC_GROUP and EC_POINT data structures can be shared
1091 between the implementations for prime fields and binary fields;
1092 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
1093 are essentially identical to their ..._GFp counterparts.
1094 (For simplicity, the '..._GFp' prefix has been dropped from
1095 various internal method names.)
1097 An internal 'field_div' method (similar to 'field_mul' and
1098 'field_sqr') has been added; this is used only for binary fields.
1100 [Sheueling Chang Shantz and Douglas Stebila
1101 (Sun Microsystems Laboratories)]
1103 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
1104 through methods ('mul', 'precompute_mult').
1106 The generic implementations (now internally called 'ec_wNAF_mul'
1107 and 'ec_wNAF_precomputed_mult') remain the default if these
1108 methods are undefined.
1110 [Sheueling Chang Shantz and Douglas Stebila
1111 (Sun Microsystems Laboratories)]
1113 *) New function EC_GROUP_get_degree, which is defined through
1114 EC_METHOD. For curves over prime fields, this returns the bit
1115 length of the modulus.
1117 [Sheueling Chang Shantz and Douglas Stebila
1118 (Sun Microsystems Laboratories)]
1120 *) New functions EC_GROUP_dup, EC_POINT_dup.
1121 (These simply call ..._new and ..._copy).
1123 [Sheueling Chang Shantz and Douglas Stebila
1124 (Sun Microsystems Laboratories)]
1126 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
1127 Polynomials are represented as BIGNUMs (where the sign bit is not
1128 used) in the following functions [macros]:
1131 BN_GF2m_sub [= BN_GF2m_add]
1132 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
1133 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
1134 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
1136 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
1137 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
1138 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
1139 BN_GF2m_cmp [= BN_ucmp]
1141 (Note that only the 'mod' functions are actually for fields GF(2^m).
1142 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
1144 For some functions, an the irreducible polynomial defining a
1145 field can be given as an 'unsigned int[]' with strictly
1146 decreasing elements giving the indices of those bits that are set;
1147 i.e., p[] represents the polynomial
1148 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
1150 p[0] > p[1] > ... > p[k] = 0.
1151 This applies to the following functions:
1156 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
1157 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
1159 BN_GF2m_mod_sqrt_arr
1160 BN_GF2m_mod_solve_quad_arr
1164 Conversion can be performed by the following functions:
1169 bntest.c has additional tests for binary polynomial arithmetic.
1171 Two implementations for BN_GF2m_mod_div() are available.
1172 The default algorithm simply uses BN_GF2m_mod_inv() and
1173 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
1174 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
1175 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
1177 [Sheueling Chang Shantz and Douglas Stebila
1178 (Sun Microsystems Laboratories)]
1180 *) Add new error code 'ERR_R_DISABLED' that can be used when some
1181 functionality is disabled at compile-time.
1182 [Douglas Stebila <douglas.stebila@sun.com>]
1184 *) Change default behaviour of 'openssl asn1parse' so that more
1185 information is visible when viewing, e.g., a certificate:
1187 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
1188 mode the content of non-printable OCTET STRINGs is output in a
1189 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
1190 avoid the appearance of a printable string.
1191 [Nils Larsch <nla@trustcenter.de>]
1193 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
1195 EC_GROUP_set_asn1_flag()
1196 EC_GROUP_get_asn1_flag()
1197 EC_GROUP_set_point_conversion_form()
1198 EC_GROUP_get_point_conversion_form()
1199 These control ASN1 encoding details:
1200 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
1201 has been set to OPENSSL_EC_NAMED_CURVE.
1202 - Points are encoded in uncompressed form by default; options for
1203 asn1_for are as for point2oct, namely
1204 POINT_CONVERSION_COMPRESSED
1205 POINT_CONVERSION_UNCOMPRESSED
1206 POINT_CONVERSION_HYBRID
1208 Also add 'seed' and 'seed_len' members to EC_GROUP with access
1211 EC_GROUP_get0_seed()
1212 EC_GROUP_get_seed_len()
1213 This is used only for ASN1 purposes (so far).
1214 [Nils Larsch <nla@trustcenter.de>]
1216 *) Add 'field_type' member to EC_METHOD, which holds the NID
1217 of the appropriate field type OID. The new function
1218 EC_METHOD_get_field_type() returns this value.
1219 [Nils Larsch <nla@trustcenter.de>]
1224 EC_POINT_point2hex()
1225 EC_POINT_hex2point()
1226 providing useful interfaces to EC_POINT_point2oct() and
1227 EC_POINT_oct2point().
1228 [Nils Larsch <nla@trustcenter.de>]
1230 *) Change internals of the EC library so that the functions
1231 EC_GROUP_set_generator()
1232 EC_GROUP_get_generator()
1233 EC_GROUP_get_order()
1234 EC_GROUP_get_cofactor()
1235 are implemented directly in crypto/ec/ec_lib.c and not dispatched
1236 to methods, which would lead to unnecessary code duplication when
1237 adding different types of curves.
1238 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
1240 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
1241 arithmetic, and such that modified wNAFs are generated
1242 (which avoid length expansion in many cases).
1245 *) Add a function EC_GROUP_check_discriminant() (defined via
1246 EC_METHOD) that verifies that the curve discriminant is non-zero.
1248 Add a function EC_GROUP_check() that makes some sanity tests
1249 on a EC_GROUP, its generator and order. This includes
1250 EC_GROUP_check_discriminant().
1251 [Nils Larsch <nla@trustcenter.de>]
1253 *) Add ECDSA in new directory crypto/ecdsa/.
1255 Add applications 'openssl ecparam' and 'openssl ecdsa'
1256 (these are based on 'openssl dsaparam' and 'openssl dsa').
1258 ECDSA support is also included in various other files across the
1259 library. Most notably,
1260 - 'openssl req' now has a '-newkey ecdsa:file' option;
1261 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
1262 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
1263 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
1264 them suitable for ECDSA where domain parameters must be
1265 extracted before the specific public key;
1266 - ECDSA engine support has been added.
1267 [Nils Larsch <nla@trustcenter.de>]
1269 *) Include some named elliptic curves, and add OIDs from X9.62,
1270 SECG, and WAP/WTLS. Each curve can be obtained from the new
1272 EC_GROUP_new_by_curve_name(),
1273 and the list of available named curves can be obtained with
1274 EC_get_builtin_curves().
1275 Also add a 'curve_name' member to EC_GROUP objects, which can be
1277 EC_GROUP_set_curve_name()
1278 EC_GROUP_get_curve_name()
1279 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
1281 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
1282 was actually never needed) and in BN_mul(). The removal in BN_mul()
1283 required a small change in bn_mul_part_recursive() and the addition
1284 of the functions bn_cmp_part_words(), bn_sub_part_words() and
1285 bn_add_part_words(), which do the same thing as bn_cmp_words(),
1286 bn_sub_words() and bn_add_words() except they take arrays with
1290 Changes between 0.9.7j and 0.9.7k [xx XXX xxxx]
1292 *) Change the Unix randomness entropy gathering to use poll() when
1293 possible instead of select(), since the latter has some
1294 undesirable limitations.
1295 [Darryl Miles via Richard Levitte]
1297 *) Disable rogue ciphersuites:
1299 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1300 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1301 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1303 The latter two were purportedly from
1304 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1307 Also deactive the remaining ciphersuites from
1308 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1309 unofficial, and the ID has long expired.
1312 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1313 dual-core machines) and other potential thread-safety issues.
1316 Changes between 0.9.7i and 0.9.7j [04 May 2006]
1318 *) Adapt fipsld and the build system to link against the validated FIPS
1319 module in FIPS mode.
1322 *) Fixes for VC++ 2005 build under Windows.
1325 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
1326 from a Windows bash shell such as MSYS. It is autodetected from the
1327 "config" script when run from a VC++ environment. Modify standard VC++
1328 build to use fipscanister.o from the GNU make build.
1331 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
1333 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
1334 The value now differs depending on if you build for FIPS or not.
1335 BEWARE! A program linked with a shared FIPSed libcrypto can't be
1336 safely run with a non-FIPSed libcrypto, as it may crash because of
1337 the difference induced by this change.
1340 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
1342 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1343 (part of SSL_OP_ALL). This option used to disable the
1344 countermeasure against man-in-the-middle protocol-version
1345 rollback in the SSL 2.0 server implementation, which is a bad
1346 idea. (CVE-2005-2969)
1348 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1349 for Information Security, National Institute of Advanced Industrial
1350 Science and Technology [AIST], Japan)]
1352 *) Minimal support for X9.31 signatures and PSS padding modes. This is
1353 mainly for FIPS compliance and not fully integrated at this stage.
1356 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
1357 the exponentiation using a fixed-length exponent. (Otherwise,
1358 the information leaked through timing could expose the secret key
1359 after many signatures; cf. Bleichenbacher's attack on DSA with
1363 *) Make a new fixed-window mod_exp implementation the default for
1364 RSA, DSA, and DH private-key operations so that the sequence of
1365 squares and multiplies and the memory access pattern are
1366 independent of the particular secret key. This will mitigate
1367 cache-timing and potential related attacks.
1369 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
1370 and this is automatically used by BN_mod_exp_mont() if the new flag
1371 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
1372 will use this BN flag for private exponents unless the flag
1373 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
1374 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
1376 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
1378 *) Change the client implementation for SSLv23_method() and
1379 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
1380 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
1381 (Previously, the SSL 2.0 backwards compatible Client Hello
1382 message format would be used even with SSL_OP_NO_SSLv2.)
1385 *) Add support for smime-type MIME parameter in S/MIME messages which some
1389 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
1390 a threadsafe manner. Modify rsa code to use new function and add calls
1391 to dsa and dh code (which had race conditions before).
1394 *) Include the fixed error library code in the C error file definitions
1395 instead of fixing them up at runtime. This keeps the error code
1396 structures constant.
1399 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
1401 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
1404 *) Fixes for newer kerberos headers. NB: the casts are needed because
1405 the 'length' field is signed on one version and unsigned on another
1406 with no (?) obvious way to tell the difference, without these VC++
1407 complains. Also the "definition" of FAR (blank) is no longer included
1408 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
1409 some needed definitions.
1412 *) Undo Cygwin change.
1415 *) Added support for proxy certificates according to RFC 3820.
1416 Because they may be a security thread to unaware applications,
1417 they must be explicitely allowed in run-time. See
1418 docs/HOWTO/proxy_certificates.txt for further information.
1421 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
1423 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
1424 server and client random values. Previously
1425 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
1426 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
1428 This change has negligible security impact because:
1430 1. Server and client random values still have 24 bytes of pseudo random
1433 2. Server and client random values are sent in the clear in the initial
1436 3. The master secret is derived using the premaster secret (48 bytes in
1437 size for static RSA ciphersuites) as well as client server and random
1440 The OpenSSL team would like to thank the UK NISCC for bringing this issue
1443 [Stephen Henson, reported by UK NISCC]
1445 *) Use Windows randomness collection on Cygwin.
1448 *) Fix hang in EGD/PRNGD query when communication socket is closed
1449 prematurely by EGD/PRNGD.
1450 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
1452 *) Prompt for pass phrases when appropriate for PKCS12 input format.
1455 *) Back-port of selected performance improvements from development
1456 branch, as well as improved support for PowerPC platforms.
1459 *) Add lots of checks for memory allocation failure, error codes to indicate
1460 failure and freeing up memory if a failure occurs.
1461 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
1463 *) Add new -passin argument to dgst.
1466 *) Perform some character comparisons of different types in X509_NAME_cmp:
1467 this is needed for some certificates that reencode DNs into UTF8Strings
1468 (in violation of RFC3280) and can't or wont issue name rollover
1472 *) Make an explicit check during certificate validation to see that
1473 the CA setting in each certificate on the chain is correct. As a
1474 side effect always do the following basic checks on extensions,
1475 not just when there's an associated purpose to the check:
1477 - if there is an unhandled critical extension (unless the user
1478 has chosen to ignore this fault)
1479 - if the path length has been exceeded (if one is set at all)
1480 - that certain extensions fit the associated purpose (if one has
1484 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
1486 *) Avoid a race condition when CRLs are checked in a multi threaded
1487 environment. This would happen due to the reordering of the revoked
1488 entries during signature checking and serial number lookup. Now the
1489 encoding is cached and the serial number sort performed under a lock.
1490 Add new STACK function sk_is_sorted().
1493 *) Add Delta CRL to the extension code.
1496 *) Various fixes to s3_pkt.c so alerts are sent properly.
1497 [David Holmes <d.holmes@f5.com>]
1499 *) Reduce the chances of duplicate issuer name and serial numbers (in
1500 violation of RFC3280) using the OpenSSL certificate creation utilities.
1501 This is done by creating a random 64 bit value for the initial serial
1502 number when a serial number file is created or when a self signed
1503 certificate is created using 'openssl req -x509'. The initial serial
1504 number file is created using 'openssl x509 -next_serial' in CA.pl
1505 rather than being initialized to 1.
1508 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
1510 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
1511 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
1512 [Joe Orton, Steve Henson]
1514 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
1516 [Joe Orton, Steve Henson]
1518 *) Make it possible to have multiple active certificates with the same
1519 subject in the CA index file. This is done only if the keyword
1520 'unique_subject' is set to 'no' in the main CA section (default
1521 if 'CA_default') of the configuration file. The value is saved
1522 with the database itself in a separate index attribute file,
1523 named like the index file with '.attr' appended to the name.
1526 *) X509 verify fixes. Disable broken certificate workarounds when
1527 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
1528 keyUsage extension present. Don't accept CRLs with unhandled critical
1529 extensions: since verify currently doesn't process CRL extensions this
1530 rejects a CRL with *any* critical extensions. Add new verify error codes
1534 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
1535 A clarification of RFC2560 will require the use of OCTET STRINGs and
1536 some implementations cannot handle the current raw format. Since OpenSSL
1537 copies and compares OCSP nonces as opaque blobs without any attempt at
1538 parsing them this should not create any compatibility issues.
1541 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
1542 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
1543 this HMAC (and other) operations are several times slower than OpenSSL
1547 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
1548 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1550 *) Use the correct content when signing type "other".
1553 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
1555 *) Fix various bugs revealed by running the NISCC test suite:
1557 Stop out of bounds reads in the ASN1 code when presented with
1558 invalid tags (CVE-2003-0543 and CVE-2003-0544).
1560 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
1562 If verify callback ignores invalid public key errors don't try to check
1563 certificate signature with the NULL public key.
1567 *) New -ignore_err option in ocsp application to stop the server
1568 exiting on the first error in a request.
1571 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
1572 if the server requested one: as stated in TLS 1.0 and SSL 3.0
1576 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
1577 extra data after the compression methods not only for TLS 1.0
1578 but also for SSL 3.0 (as required by the specification).
1579 [Bodo Moeller; problem pointed out by Matthias Loepfe]
1581 *) Change X509_certificate_type() to mark the key as exported/exportable
1582 when it's 512 *bits* long, not 512 bytes.
1585 *) Change AES_cbc_encrypt() so it outputs exact multiple of
1586 blocks during encryption.
1589 *) Various fixes to base64 BIO and non blocking I/O. On write
1590 flushes were not handled properly if the BIO retried. On read
1591 data was not being buffered properly and had various logic bugs.
1592 This also affects blocking I/O when the data being decoded is a
1596 *) Various S/MIME bugfixes and compatibility changes:
1597 output correct application/pkcs7 MIME type if
1598 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
1599 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
1600 of files as .eml work). Correctly handle very long lines in MIME
1604 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
1606 *) Countermeasure against the Klima-Pokorny-Rosa extension of
1607 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
1608 a protocol version number mismatch like a decryption error
1609 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
1612 *) Turn on RSA blinding by default in the default implementation
1613 to avoid a timing attack. Applications that don't want it can call
1614 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
1615 They would be ill-advised to do so in most cases.
1616 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
1618 *) Change RSA blinding code so that it works when the PRNG is not
1619 seeded (in this case, the secret RSA exponent is abused as
1620 an unpredictable seed -- if it is not unpredictable, there
1621 is no point in blinding anyway). Make RSA blinding thread-safe
1622 by remembering the creator's thread ID in rsa->blinding and
1623 having all other threads use local one-time blinding factors
1624 (this requires more computation than sharing rsa->blinding, but
1625 avoids excessive locking; and if an RSA object is not shared
1626 between threads, blinding will still be very fast).
1629 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
1630 ENGINE as defaults for all supported algorithms irrespective of
1631 the 'flags' parameter. 'flags' is now honoured, so applications
1632 should make sure they are passing it correctly.
1635 *) Target "mingw" now allows native Windows code to be generated in
1636 the Cygwin environment as well as with the MinGW compiler.
1639 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
1641 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
1642 via timing by performing a MAC computation even if incorrrect
1643 block cipher padding has been found. This is a countermeasure
1644 against active attacks where the attacker has to distinguish
1645 between bad padding and a MAC verification error. (CVE-2003-0078)
1647 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
1648 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
1649 Martin Vuagnoux (EPFL, Ilion)]
1651 *) Make the no-err option work as intended. The intention with no-err
1652 is not to have the whole error stack handling routines removed from
1653 libcrypto, it's only intended to remove all the function name and
1654 reason texts, thereby removing some of the footprint that may not
1655 be interesting if those errors aren't displayed anyway.
1657 NOTE: it's still possible for any application or module to have it's
1658 own set of error texts inserted. The routines are there, just not
1659 used by default when no-err is given.
1662 *) Add support for FreeBSD on IA64.
1663 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
1665 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
1666 Kerberos function mit_des_cbc_cksum(). Before this change,
1667 the value returned by DES_cbc_cksum() was like the one from
1668 mit_des_cbc_cksum(), except the bytes were swapped.
1669 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
1671 *) Allow an application to disable the automatic SSL chain building.
1672 Before this a rather primitive chain build was always performed in
1673 ssl3_output_cert_chain(): an application had no way to send the
1674 correct chain if the automatic operation produced an incorrect result.
1676 Now the chain builder is disabled if either:
1678 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
1680 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
1682 The reasoning behind this is that an application would not want the
1683 auto chain building to take place if extra chain certificates are
1684 present and it might also want a means of sending no additional
1685 certificates (for example the chain has two certificates and the
1689 *) Add the possibility to build without the ENGINE framework.
1690 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1692 *) Under Win32 gmtime() can return NULL: check return value in
1693 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
1696 *) DSA routines: under certain error conditions uninitialized BN objects
1697 could be freed. Solution: make sure initialization is performed early
1698 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
1699 Nils Larsch <nla@trustcenter.de> via PR#459)
1702 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
1703 checked on reconnect on the client side, therefore session resumption
1704 could still fail with a "ssl session id is different" error. This
1705 behaviour is masked when SSL_OP_ALL is used due to
1706 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
1707 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1708 followup to PR #377.
1711 *) IA-32 assembler support enhancements: unified ELF targets, support
1712 for SCO/Caldera platforms, fix for Cygwin shared build.
1715 *) Add support for FreeBSD on sparc64. As a consequence, support for
1716 FreeBSD on non-x86 processors is separate from x86 processors on
1717 the config script, much like the NetBSD support.
1718 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
1720 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
1722 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
1725 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
1726 code (06) was taken as the first octet of the session ID and the last
1727 octet was ignored consequently. As a result SSLv2 client side session
1728 caching could not have worked due to the session ID mismatch between
1730 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1734 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
1735 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
1739 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
1740 seems that in spite of existing for more than a year, many application
1741 author have done nothing to provide the necessary callbacks, which
1742 means that this particular engine will not work properly anywhere.
1743 This is a very unfortunate situation which forces us, in the name
1744 of usability, to give the hw_ncipher.c a static lock, which is part
1746 NOTE: This is for the 0.9.7 series ONLY. This hack will never
1747 appear in 0.9.8 or later. We EXPECT application authors to have
1748 dealt properly with this when 0.9.8 is released (unless we actually
1749 make such changes in the libcrypto locking code that changes will
1750 have to be made anyway).
1753 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
1754 octets have been read, EOF or an error occurs. Without this change
1755 some truncated ASN1 structures will not produce an error.
1758 *) Disable Heimdal support, since it hasn't been fully implemented.
1759 Still give the possibility to force the use of Heimdal, but with
1760 warnings and a request that patches get sent to openssl-dev.
1763 *) Add the VC-CE target, introduce the WINCE sysname, and add
1764 INSTALL.WCE and appropriate conditionals to make it build.
1765 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1767 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
1768 cygssl-x.y.z.dll, where x, y and z are the major, minor and
1769 edit numbers of the version.
1770 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
1772 *) Introduce safe string copy and catenation functions
1773 (BUF_strlcpy() and BUF_strlcat()).
1774 [Ben Laurie (CHATS) and Richard Levitte]
1776 *) Avoid using fixed-size buffers for one-line DNs.
1777 [Ben Laurie (CHATS)]
1779 *) Add BUF_MEM_grow_clean() to avoid information leakage when
1780 resizing buffers containing secrets, and use where appropriate.
1781 [Ben Laurie (CHATS)]
1783 *) Avoid using fixed size buffers for configuration file location.
1784 [Ben Laurie (CHATS)]
1786 *) Avoid filename truncation for various CA files.
1787 [Ben Laurie (CHATS)]
1789 *) Use sizeof in preference to magic numbers.
1790 [Ben Laurie (CHATS)]
1792 *) Avoid filename truncation in cert requests.
1793 [Ben Laurie (CHATS)]
1795 *) Add assertions to check for (supposedly impossible) buffer
1797 [Ben Laurie (CHATS)]
1799 *) Don't cache truncated DNS entries in the local cache (this could
1800 potentially lead to a spoofing attack).
1801 [Ben Laurie (CHATS)]
1803 *) Fix various buffers to be large enough for hex/decimal
1804 representations in a platform independent manner.
1805 [Ben Laurie (CHATS)]
1807 *) Add CRYPTO_realloc_clean() to avoid information leakage when
1808 resizing buffers containing secrets, and use where appropriate.
1809 [Ben Laurie (CHATS)]
1811 *) Add BIO_indent() to avoid much slightly worrying code to do
1813 [Ben Laurie (CHATS)]
1815 *) Convert sprintf()/BIO_puts() to BIO_printf().
1816 [Ben Laurie (CHATS)]
1818 *) buffer_gets() could terminate with the buffer only half
1820 [Ben Laurie (CHATS)]
1822 *) Add assertions to prevent user-supplied crypto functions from
1823 overflowing internal buffers by having large block sizes, etc.
1824 [Ben Laurie (CHATS)]
1826 *) New OPENSSL_assert() macro (similar to assert(), but enabled
1828 [Ben Laurie (CHATS)]
1830 *) Eliminate unused copy of key in RC4.
1831 [Ben Laurie (CHATS)]
1833 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
1834 [Ben Laurie (CHATS)]
1836 *) Fix off-by-one error in EGD path.
1837 [Ben Laurie (CHATS)]
1839 *) If RANDFILE path is too long, ignore instead of truncating.
1840 [Ben Laurie (CHATS)]
1842 *) Eliminate unused and incorrectly sized X.509 structure
1844 [Ben Laurie (CHATS)]
1846 *) Eliminate unused and dangerous function knumber().
1847 [Ben Laurie (CHATS)]
1849 *) Eliminate unused and dangerous structure, KSSL_ERR.
1850 [Ben Laurie (CHATS)]
1852 *) Protect against overlong session ID context length in an encoded
1853 session object. Since these are local, this does not appear to be
1855 [Ben Laurie (CHATS)]
1857 *) Change from security patch (see 0.9.6e below) that did not affect
1858 the 0.9.6 release series:
1860 Remote buffer overflow in SSL3 protocol - an attacker could
1861 supply an oversized master key in Kerberos-enabled versions.
1863 [Ben Laurie (CHATS)]
1865 *) Change the SSL kerb5 codes to match RFC 2712.
1868 *) Make -nameopt work fully for req and add -reqopt switch.
1869 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
1871 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
1872 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
1874 *) Make sure tests can be performed even if the corresponding algorithms
1875 have been removed entirely. This was also the last step to make
1876 OpenSSL compilable with DJGPP under all reasonable conditions.
1877 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
1879 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
1880 to allow version independent disabling of normally unselected ciphers,
1881 which may be activated as a side-effect of selecting a single cipher.
1883 (E.g., cipher list string "RSA" enables ciphersuites that are left
1884 out of "ALL" because they do not provide symmetric encryption.
1885 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
1886 [Lutz Jaenicke, Bodo Moeller]
1888 *) Add appropriate support for separate platform-dependent build
1889 directories. The recommended way to make a platform-dependent
1890 build directory is the following (tested on Linux), maybe with
1893 # Place yourself outside of the OpenSSL source tree. In
1894 # this example, the environment variable OPENSSL_SOURCE
1895 # is assumed to contain the absolute OpenSSL source directory.
1896 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
1897 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
1898 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
1899 mkdir -p `dirname $F`
1900 ln -s $OPENSSL_SOURCE/$F $F
1903 To be absolutely sure not to disturb the source tree, a "make clean"
1904 is a good thing. If it isn't successfull, don't worry about it,
1905 it probably means the source directory is very clean.
1908 *) Make sure any ENGINE control commands make local copies of string
1909 pointers passed to them whenever necessary. Otherwise it is possible
1910 the caller may have overwritten (or deallocated) the original string
1911 data when a later ENGINE operation tries to use the stored values.
1912 [Götz Babin-Ebell <babinebell@trustcenter.de>]
1914 *) Improve diagnostics in file reading and command-line digests.
1915 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
1917 *) Add AES modes CFB and OFB to the object database. Correct an
1918 error in AES-CFB decryption.
1921 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
1922 allows existing EVP_CIPHER_CTX structures to be reused after
1923 calling EVP_*Final(). This behaviour is used by encryption
1924 BIOs and some applications. This has the side effect that
1925 applications must explicitly clean up cipher contexts with
1926 EVP_CIPHER_CTX_cleanup() or they will leak memory.
1929 *) Check the values of dna and dnb in bn_mul_recursive before calling
1930 bn_mul_comba (a non zero value means the a or b arrays do not contain
1931 n2 elements) and fallback to bn_mul_normal if either is not zero.
1934 *) Fix escaping of non-ASCII characters when using the -subj option
1935 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
1938 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
1939 form for "surname", serialNumber has no short form.
1940 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
1941 therefore remove "mail" short name for "internet 7".
1942 The OID for unique identifiers in X509 certificates is
1943 x500UniqueIdentifier, not uniqueIdentifier.
1944 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
1947 *) Add an "init" command to the ENGINE config module and auto initialize
1948 ENGINEs. Without any "init" command the ENGINE will be initialized
1949 after all ctrl commands have been executed on it. If init=1 the
1950 ENGINE is initailized at that point (ctrls before that point are run
1951 on the uninitialized ENGINE and after on the initialized one). If
1952 init=0 then the ENGINE will not be iniatialized at all.
1955 *) Fix the 'app_verify_callback' interface so that the user-defined
1956 argument is actually passed to the callback: In the
1957 SSL_CTX_set_cert_verify_callback() prototype, the callback
1958 declaration has been changed from
1961 int (*cb)(X509_STORE_CTX *,void *);
1962 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
1963 i=s->ctx->app_verify_callback(&ctx)
1964 has been changed into
1965 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
1967 To update applications using SSL_CTX_set_cert_verify_callback(),
1968 a dummy argument can be added to their callback functions.
1969 [D. K. Smetters <smetters@parc.xerox.com>]
1971 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
1972 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
1974 *) Add and OPENSSL_LOAD_CONF define which will cause
1975 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
1976 This allows older applications to transparently support certain
1977 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
1978 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
1979 load the config file and OPENSSL_add_all_algorithms_conf() which will
1980 always load it have also been added.
1983 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
1984 Adjust NIDs and EVP layer.
1985 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
1987 *) Config modules support in openssl utility.
1989 Most commands now load modules from the config file,
1990 though in a few (such as version) this isn't done
1991 because it couldn't be used for anything.
1993 In the case of ca and req the config file used is
1994 the same as the utility itself: that is the -config
1995 command line option can be used to specify an
1999 *) Move default behaviour from OPENSSL_config(). If appname is NULL
2000 use "openssl_conf" if filename is NULL use default openssl config file.
2003 *) Add an argument to OPENSSL_config() to allow the use of an alternative
2004 config section name. Add a new flag to tolerate a missing config file
2005 and move code to CONF_modules_load_file().
2008 *) Support for crypto accelerator cards from Accelerated Encryption
2009 Processing, www.aep.ie. (Use engine 'aep')
2010 The support was copied from 0.9.6c [engine] and adapted/corrected
2011 to work with the new engine framework.
2012 [AEP Inc. and Richard Levitte]
2014 *) Support for SureWare crypto accelerator cards from Baltimore
2015 Technologies. (Use engine 'sureware')
2016 The support was copied from 0.9.6c [engine] and adapted
2017 to work with the new engine framework.
2020 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
2021 make the newer ENGINE framework commands for the CHIL engine work.
2022 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
2024 *) Make it possible to produce shared libraries on ReliantUNIX.
2025 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
2027 *) Add the configuration target debug-linux-ppro.
2028 Make 'openssl rsa' use the general key loading routines
2029 implemented in apps.c, and make those routines able to
2030 handle the key format FORMAT_NETSCAPE and the variant
2032 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2034 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
2035 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2037 *) Add -keyform to rsautl, and document -engine.
2038 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
2040 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
2041 BIO_R_NO_SUCH_FILE error code rather than the generic
2042 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
2045 *) Add new functions
2047 ERR_peek_last_error_line
2048 ERR_peek_last_error_line_data.
2049 These are similar to
2052 ERR_peek_error_line_data,
2053 but report on the latest error recorded rather than the first one
2054 still in the error queue.
2055 [Ben Laurie, Bodo Moeller]
2057 *) default_algorithms option in ENGINE config module. This allows things
2059 default_algorithms = ALL
2060 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
2063 *) Prelminary ENGINE config module.
2066 *) New experimental application configuration code.
2069 *) Change the AES code to follow the same name structure as all other
2070 symmetric ciphers, and behave the same way. Move everything to
2071 the directory crypto/aes, thereby obsoleting crypto/rijndael.
2072 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2074 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
2075 [Ben Laurie and Theo de Raadt]
2077 *) Add option to output public keys in req command.
2078 [Massimiliano Pala madwolf@openca.org]
2080 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
2081 (up to about 10% better than before for P-192 and P-224).
2084 *) New functions/macros
2086 SSL_CTX_set_msg_callback(ctx, cb)
2087 SSL_CTX_set_msg_callback_arg(ctx, arg)
2088 SSL_set_msg_callback(ssl, cb)
2089 SSL_set_msg_callback_arg(ssl, arg)
2091 to request calling a callback function
2093 void cb(int write_p, int version, int content_type,
2094 const void *buf, size_t len, SSL *ssl, void *arg)
2096 whenever a protocol message has been completely received
2097 (write_p == 0) or sent (write_p == 1). Here 'version' is the
2098 protocol version according to which the SSL library interprets
2099 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
2100 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
2101 the content type as defined in the SSL 3.0/TLS 1.0 protocol
2102 specification (change_cipher_spec(20), alert(21), handshake(22)).
2103 'buf' and 'len' point to the actual message, 'ssl' to the
2104 SSL object, and 'arg' is the application-defined value set by
2105 SSL[_CTX]_set_msg_callback_arg().
2107 'openssl s_client' and 'openssl s_server' have new '-msg' options
2108 to enable a callback that displays all protocol messages.
2111 *) Change the shared library support so shared libraries are built as
2112 soon as the corresponding static library is finished, and thereby get
2113 openssl and the test programs linked against the shared library.
2114 This still only happens when the keyword "shard" has been given to
2115 the configuration scripts.
2117 NOTE: shared library support is still an experimental thing, and
2118 backward binary compatibility is still not guaranteed.
2119 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
2121 *) Add support for Subject Information Access extension.
2122 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2124 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
2125 additional bytes when new memory had to be allocated, not just
2126 when reusing an existing buffer.
2129 *) New command line and configuration option 'utf8' for the req command.
2130 This allows field values to be specified as UTF8 strings.
2133 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
2134 runs for the former and machine-readable output for the latter.
2137 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
2138 of the e-mail address in the DN (i.e., it will go into a certificate
2139 extension only). The new configuration file option 'email_in_dn = no'
2140 has the same effect.
2141 [Massimiliano Pala madwolf@openca.org]
2143 *) Change all functions with names starting with des_ to be starting
2144 with DES_ instead. Add wrappers that are compatible with libdes,
2145 but are named _ossl_old_des_*. Finally, add macros that map the
2146 des_* symbols to the corresponding _ossl_old_des_* if libdes
2147 compatibility is desired. If OpenSSL 0.9.6c compatibility is
2148 desired, the des_* symbols will be mapped to DES_*, with one
2151 Since we provide two compatibility mappings, the user needs to
2152 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
2153 compatibility is desired. The default (i.e., when that macro
2154 isn't defined) is OpenSSL 0.9.6c compatibility.
2156 There are also macros that enable and disable the support of old
2157 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
2158 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
2159 are defined, the default will apply: to support the old des routines.
2161 In either case, one must include openssl/des.h to get the correct
2162 definitions. Do not try to just include openssl/des_old.h, that
2165 NOTE: This is a major break of an old API into a new one. Software
2166 authors are encouraged to switch to the DES_ style functions. Some
2167 time in the future, des_old.h and the libdes compatibility functions
2168 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
2169 default), and then completely removed.
2172 *) Test for certificates which contain unsupported critical extensions.
2173 If such a certificate is found during a verify operation it is
2174 rejected by default: this behaviour can be overridden by either
2175 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
2176 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
2177 X509_supported_extension() has also been added which returns 1 if a
2178 particular extension is supported.
2181 *) Modify the behaviour of EVP cipher functions in similar way to digests
2182 to retain compatibility with existing code.
2185 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
2186 compatibility with existing code. In particular the 'ctx' parameter does
2187 not have to be to be initialized before the call to EVP_DigestInit() and
2188 it is tidied up after a call to EVP_DigestFinal(). New function
2189 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
2190 EVP_MD_CTX_copy() changed to not require the destination to be
2191 initialized valid and new function EVP_MD_CTX_copy_ex() added which
2192 requires the destination to be valid.
2194 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
2195 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
2198 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
2199 so that complete 'Handshake' protocol structures are kept in memory
2200 instead of overwriting 'msg_type' and 'length' with 'body' data.
2203 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
2204 [Massimo Santin via Richard Levitte]
2206 *) Major restructuring to the underlying ENGINE code. This includes
2207 reduction of linker bloat, separation of pure "ENGINE" manipulation
2208 (initialisation, etc) from functionality dealing with implementations
2209 of specific crypto iterfaces. This change also introduces integrated
2210 support for symmetric ciphers and digest implementations - so ENGINEs
2211 can now accelerate these by providing EVP_CIPHER and EVP_MD
2212 implementations of their own. This is detailed in crypto/engine/README
2213 as it couldn't be adequately described here. However, there are a few
2214 API changes worth noting - some RSA, DSA, DH, and RAND functions that
2215 were changed in the original introduction of ENGINE code have now
2216 reverted back - the hooking from this code to ENGINE is now a good
2217 deal more passive and at run-time, operations deal directly with
2218 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
2219 dereferencing through an ENGINE pointer any more. Also, the ENGINE
2220 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
2221 they were not being used by the framework as there is no concept of a
2222 BIGNUM_METHOD and they could not be generalised to the new
2223 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
2224 ENGINE_cpy() has been removed as it cannot be consistently defined in
2228 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
2231 *) Change mkdef.pl to sort symbols that get the same entry number,
2232 and make sure the automatically generated functions ERR_load_*
2233 become part of libeay.num as well.
2236 *) New function SSL_renegotiate_pending(). This returns true once
2237 renegotiation has been requested (either SSL_renegotiate() call
2238 or HelloRequest/ClientHello receveived from the peer) and becomes
2239 false once a handshake has been completed.
2240 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
2241 sends a HelloRequest, but does not ensure that a handshake takes
2242 place. SSL_renegotiate_pending() is useful for checking if the
2243 client has followed the request.)
2246 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
2247 By default, clients may request session resumption even during
2248 renegotiation (if session ID contexts permit); with this option,
2249 session resumption is possible only in the first handshake.
2251 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
2252 more bits available for options that should not be part of
2253 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
2256 *) Add some demos for certificate and certificate request creation.
2259 *) Make maximum certificate chain size accepted from the peer application
2260 settable (SSL*_get/set_max_cert_list()), as proposed by
2261 "Douglas E. Engert" <deengert@anl.gov>.
2264 *) Add support for shared libraries for Unixware-7
2265 (Boyd Lynn Gerber <gerberb@zenez.com>).
2268 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
2269 be done prior to destruction. Use this to unload error strings from
2270 ENGINEs that load their own error strings. NB: This adds two new API
2271 functions to "get" and "set" this destroy handler in an ENGINE.
2274 *) Alter all existing ENGINE implementations (except "openssl" and
2275 "openbsd") to dynamically instantiate their own error strings. This
2276 makes them more flexible to be built both as statically-linked ENGINEs
2277 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
2278 Also, add stub code to each that makes building them as self-contained
2279 shared-libraries easier (see README.ENGINE).
2282 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
2283 implementations into applications that are completely implemented in
2284 self-contained shared-libraries. The "dynamic" ENGINE exposes control
2285 commands that can be used to configure what shared-library to load and
2286 to control aspects of the way it is handled. Also, made an update to
2287 the README.ENGINE file that brings its information up-to-date and
2288 provides some information and instructions on the "dynamic" ENGINE
2289 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
2292 *) Make it possible to unload ranges of ERR strings with a new
2293 "ERR_unload_strings" function.
2296 *) Add a copy() function to EVP_MD.
2299 *) Make EVP_MD routines take a context pointer instead of just the
2300 md_data void pointer.
2303 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
2304 that the digest can only process a single chunk of data
2305 (typically because it is provided by a piece of
2306 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
2307 is only going to provide a single chunk of data, and hence the
2308 framework needn't accumulate the data for oneshot drivers.
2311 *) As with "ERR", make it possible to replace the underlying "ex_data"
2312 functions. This change also alters the storage and management of global
2313 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
2314 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
2315 index counters. The API functions that use this state have been changed
2316 to take a "class_index" rather than pointers to the class's local STACK
2317 and counter, and there is now an API function to dynamically create new
2318 classes. This centralisation allows us to (a) plug a lot of the
2319 thread-safety problems that existed, and (b) makes it possible to clean
2320 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
2321 such data would previously have always leaked in application code and
2322 workarounds were in place to make the memory debugging turn a blind eye
2323 to it. Application code that doesn't use this new function will still
2324 leak as before, but their memory debugging output will announce it now
2325 rather than letting it slide.
2327 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
2328 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
2329 has a return value to indicate success or failure.
2332 *) Make it possible to replace the underlying "ERR" functions such that the
2333 global state (2 LHASH tables and 2 locks) is only used by the "default"
2334 implementation. This change also adds two functions to "get" and "set"
2335 the implementation prior to it being automatically set the first time
2336 any other ERR function takes place. Ie. an application can call "get",
2337 pass the return value to a module it has just loaded, and that module
2338 can call its own "set" function using that value. This means the
2339 module's "ERR" operations will use (and modify) the error state in the
2340 application and not in its own statically linked copy of OpenSSL code.
2343 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
2344 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
2345 the operation, and provides a more encapsulated way for external code
2346 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
2347 to use these functions rather than manually incrementing the counts.
2349 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
2352 *) Add EVP test program.
2355 *) Add symmetric cipher support to ENGINE. Expect the API to change!
2358 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
2359 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
2360 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
2361 These allow a CRL to be built without having to access X509_CRL fields
2362 directly. Modify 'ca' application to use new functions.
2365 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
2366 bug workarounds. Rollback attack detection is a security feature.
2367 The problem will only arise on OpenSSL servers when TLSv1 is not
2368 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
2369 Software authors not wanting to support TLSv1 will have special reasons
2370 for their choice and can explicitly enable this option.
2371 [Bodo Moeller, Lutz Jaenicke]
2373 *) Rationalise EVP so it can be extended: don't include a union of
2374 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
2375 (similar to those existing for EVP_CIPHER_CTX).
2380 EVP_MD_CTX_init(&md); /* new function call */
2381 EVP_DigestInit(&md, EVP_sha1());
2382 EVP_DigestUpdate(&md, in, len);
2383 EVP_DigestFinal(&md, out, NULL);
2384 EVP_MD_CTX_cleanup(&md); /* new function call */
2388 *) Make DES key schedule conform to the usual scheme, as well as
2389 correcting its structure. This means that calls to DES functions
2390 now have to pass a pointer to a des_key_schedule instead of a
2391 plain des_key_schedule (which was actually always a pointer
2394 des_key_schedule ks;
2396 des_set_key_checked(..., &ks);
2397 des_ncbc_encrypt(..., &ks, ...);
2399 (Note that a later change renames 'des_...' into 'DES_...'.)
2402 *) Initial reduction of linker bloat: the use of some functions, such as
2403 PEM causes large amounts of unused functions to be linked in due to
2404 poor organisation. For example pem_all.c contains every PEM function
2405 which has a knock on effect of linking in large amounts of (unused)
2406 ASN1 code. Grouping together similar functions and splitting unrelated
2407 functions prevents this.
2410 *) Cleanup of EVP macros.
2413 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
2414 correct _ecb suffix.
2417 *) Add initial OCSP responder support to ocsp application. The
2418 revocation information is handled using the text based index
2419 use by the ca application. The responder can either handle
2420 requests generated internally, supplied in files (for example
2421 via a CGI script) or using an internal minimal server.
2424 *) Add configuration choices to get zlib compression for TLS.
2427 *) Changes to Kerberos SSL for RFC 2712 compliance:
2428 1. Implemented real KerberosWrapper, instead of just using
2429 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
2430 2. Implemented optional authenticator field of KerberosWrapper.
2432 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
2433 and authenticator structs; see crypto/krb5/.
2435 Generalized Kerberos calls to support multiple Kerberos libraries.
2436 [Vern Staats <staatsvr@asc.hpc.mil>,
2437 Jeffrey Altman <jaltman@columbia.edu>
2438 via Richard Levitte]
2440 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
2441 already does with RSA. testdsa.h now has 'priv_key/pub_key'
2442 values for each of the key sizes rather than having just
2443 parameters (and 'speed' generating keys each time).
2446 *) Speed up EVP routines.
2449 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
2450 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
2451 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
2452 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
2454 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
2455 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
2456 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
2459 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
2461 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
2464 *) Added the OS2-EMX target.
2465 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
2467 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
2468 to support NCONF routines in extension code. New function CONF_set_nconf()
2469 to allow functions which take an NCONF to also handle the old LHASH
2470 structure: this means that the old CONF compatible routines can be
2471 retained (in particular wrt extensions) without having to duplicate the
2472 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
2475 *) Enhance the general user interface with mechanisms for inner control
2476 and with possibilities to have yes/no kind of prompts.
2479 *) Change all calls to low level digest routines in the library and
2480 applications to use EVP. Add missing calls to HMAC_cleanup() and
2481 don't assume HMAC_CTX can be copied using memcpy().
2482 [Verdon Walker <VWalker@novell.com>, Steve Henson]
2484 *) Add the possibility to control engines through control names but with
2485 arbitrary arguments instead of just a string.
2486 Change the key loaders to take a UI_METHOD instead of a callback
2487 function pointer. NOTE: this breaks binary compatibility with earlier
2488 versions of OpenSSL [engine].
2489 Adapt the nCipher code for these new conditions and add a card insertion
2493 *) Enhance the general user interface with mechanisms to better support
2494 dialog box interfaces, application-defined prompts, the possibility
2495 to use defaults (for example default passwords from somewhere else)
2496 and interrupts/cancellations.
2499 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
2500 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
2503 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
2504 tidy up some unnecessarily weird code in 'sk_new()').
2505 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
2507 *) Change the key loading routines for ENGINEs to use the same kind
2508 callback (pem_password_cb) as all other routines that need this
2512 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
2513 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
2514 than this minimum value is recommended.
2517 *) New random seeder for OpenVMS, using the system process statistics
2518 that are easily reachable.
2521 *) Windows apparently can't transparently handle global
2522 variables defined in DLLs. Initialisations such as:
2524 const ASN1_ITEM *it = &ASN1_INTEGER_it;
2526 wont compile. This is used by the any applications that need to
2527 declare their own ASN1 modules. This was fixed by adding the option
2528 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
2529 needed for static libraries under Win32.
2532 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
2533 setting of purpose and trust fields. New X509_STORE trust and
2534 purpose functions and tidy up setting in other SSL functions.
2537 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
2538 structure. These are inherited by X509_STORE_CTX when it is
2539 initialised. This allows various defaults to be set in the
2540 X509_STORE structure (such as flags for CRL checking and custom
2541 purpose or trust settings) for functions which only use X509_STORE_CTX
2542 internally such as S/MIME.
2544 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
2545 trust settings if they are not set in X509_STORE. This allows X509_STORE
2546 purposes and trust (in S/MIME for example) to override any set by default.
2548 Add command line options for CRL checking to smime, s_client and s_server
2552 *) Initial CRL based revocation checking. If the CRL checking flag(s)
2553 are set then the CRL is looked up in the X509_STORE structure and
2554 its validity and signature checked, then if the certificate is found
2555 in the CRL the verify fails with a revoked error.
2557 Various new CRL related callbacks added to X509_STORE_CTX structure.
2559 Command line options added to 'verify' application to support this.
2561 This needs some additional work, such as being able to handle multiple
2562 CRLs with different times, extension based lookup (rather than just
2563 by subject name) and ultimately more complete V2 CRL extension
2567 *) Add a general user interface API (crypto/ui/). This is designed
2568 to replace things like des_read_password and friends (backward
2569 compatibility functions using this new API are provided).
2570 The purpose is to remove prompting functions from the DES code
2571 section as well as provide for prompting through dialog boxes in
2572 a window system and the like.
2575 *) Add "ex_data" support to ENGINE so implementations can add state at a
2576 per-structure level rather than having to store it globally.
2579 *) Make it possible for ENGINE structures to be copied when retrieved by
2580 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
2581 This causes the "original" ENGINE structure to act like a template,
2582 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
2583 operational state can be localised to each ENGINE structure, despite the
2584 fact they all share the same "methods". New ENGINE structures returned in
2585 this case have no functional references and the return value is the single
2586 structural reference. This matches the single structural reference returned
2587 by ENGINE_by_id() normally, when it is incremented on the pre-existing
2591 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
2592 needs to match any other type at all we need to manually clear the
2596 *) Changes to the "openssl engine" utility to include;
2597 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
2598 about an ENGINE's available control commands.
2599 - executing control commands from command line arguments using the
2600 '-pre' and '-post' switches. '-post' is only used if '-t' is
2601 specified and the ENGINE is successfully initialised. The syntax for
2602 the individual commands are colon-separated, for example;
2603 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
2606 *) New dynamic control command support for ENGINEs. ENGINEs can now
2607 declare their own commands (numbers), names (strings), descriptions,
2608 and input types for run-time discovery by calling applications. A
2609 subset of these commands are implicitly classed as "executable"
2610 depending on their input type, and only these can be invoked through
2611 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
2612 can be based on user input, config files, etc). The distinction is
2613 that "executable" commands cannot return anything other than a boolean
2614 result and can only support numeric or string input, whereas some
2615 discoverable commands may only be for direct use through
2616 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
2617 pointers, or other custom uses. The "executable" commands are to
2618 support parameterisations of ENGINE behaviour that can be
2619 unambiguously defined by ENGINEs and used consistently across any
2620 OpenSSL-based application. Commands have been added to all the
2621 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
2622 control over shared-library paths without source code alterations.
2625 *) Changed all ENGINE implementations to dynamically allocate their
2626 ENGINEs rather than declaring them statically. Apart from this being
2627 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
2628 this also allows the implementations to compile without using the
2629 internal engine_int.h header.
2632 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
2633 'const' value. Any code that should be able to modify a RAND_METHOD
2634 should already have non-const pointers to it (ie. they should only
2635 modify their own ones).
2638 *) Made a variety of little tweaks to the ENGINE code.
2639 - "atalla" and "ubsec" string definitions were moved from header files
2640 to C code. "nuron" string definitions were placed in variables
2641 rather than hard-coded - allowing parameterisation of these values
2642 later on via ctrl() commands.
2643 - Removed unused "#if 0"'d code.
2644 - Fixed engine list iteration code so it uses ENGINE_free() to release
2645 structural references.
2646 - Constified the RAND_METHOD element of ENGINE structures.
2647 - Constified various get/set functions as appropriate and added
2648 missing functions (including a catch-all ENGINE_cpy that duplicates
2649 all ENGINE values onto a new ENGINE except reference counts/state).
2650 - Removed NULL parameter checks in get/set functions. Setting a method
2651 or function to NULL is a way of cancelling out a previously set
2652 value. Passing a NULL ENGINE parameter is just plain stupid anyway
2653 and doesn't justify the extra error symbols and code.
2654 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
2655 flags from engine_int.h to engine.h.
2656 - Changed prototypes for ENGINE handler functions (init(), finish(),
2657 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
2660 *) Implement binary inversion algorithm for BN_mod_inverse in addition
2661 to the algorithm using long division. The binary algorithm can be
2662 used only if the modulus is odd. On 32-bit systems, it is faster
2663 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
2664 roughly 5-15% for 256-bit moduli), so we use it only for moduli
2665 up to 450 bits. In 64-bit environments, the binary algorithm
2666 appears to be advantageous for much longer moduli; here we use it
2667 for moduli up to 2048 bits.
2670 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
2671 could not support the combine flag in choice fields.
2674 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
2675 extensions from a certificate request to the certificate.
2678 *) Allow multiple 'certopt' and 'nameopt' options to be separated
2679 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
2680 file: this allows the display of the certificate about to be
2681 signed to be customised, to allow certain fields to be included
2682 or excluded and extension details. The old system didn't display
2683 multicharacter strings properly, omitted fields not in the policy
2684 and couldn't display additional details such as extensions.
2687 *) Function EC_POINTs_mul for multiple scalar multiplication
2688 of an arbitrary number of elliptic curve points
2689 \sum scalars[i]*points[i],
2690 optionally including the generator defined for the EC_GROUP:
2691 scalar*generator + \sum scalars[i]*points[i].
2693 EC_POINT_mul is a simple wrapper function for the typical case
2694 that the point list has just one item (besides the optional
2698 *) First EC_METHODs for curves over GF(p):
2700 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
2701 operations and provides various method functions that can also
2702 operate with faster implementations of modular arithmetic.
2704 EC_GFp_mont_method() reuses most functions that are part of
2705 EC_GFp_simple_method, but uses Montgomery arithmetic.
2707 [Bodo Moeller; point addition and point doubling
2708 implementation directly derived from source code provided by
2709 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
2711 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
2712 crypto/ec/ec_lib.c):
2714 Curves are EC_GROUP objects (with an optional group generator)
2715 based on EC_METHODs that are built into the library.
2717 Points are EC_POINT objects based on EC_GROUP objects.
2719 Most of the framework would be able to handle curves over arbitrary
2720 finite fields, but as there are no obvious types for fields other
2721 than GF(p), some functions are limited to that for now.
2724 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
2725 that the file contains a complete HTTP response.
2728 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
2729 change the def and num file printf format specifier from "%-40sXXX"
2730 to "%-39s XXX". The latter will always guarantee a space after the
2731 field while the former will cause them to run together if the field
2732 is 40 of more characters long.
2735 *) Constify the cipher and digest 'method' functions and structures
2736 and modify related functions to take constant EVP_MD and EVP_CIPHER
2740 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
2741 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
2744 *) Modify EVP_Digest*() routines so they now return values. Although the
2745 internal software routines can never fail additional hardware versions
2749 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
2751 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
2752 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
2755 ERR_R_NESTED_ASN1_ERROR
2757 ERR_R_MISSING_ASN1_EOS
2758 were 4 .. 9, conflicting with
2759 ERR_LIB_RSA (= ERR_R_RSA_LIB)
2761 ERR_LIB_PEM (= ERR_R_PEM_LIB).
2762 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
2764 Add new error code 'ERR_R_INTERNAL_ERROR'.
2767 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
2771 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
2772 sets the subject name for a new request or supersedes the
2773 subject name in a given request. Formats that can be parsed are
2774 'CN=Some Name, OU=myOU, C=IT'
2776 'CN=Some Name/OU=myOU/C=IT'.
2778 Add options '-batch' and '-verbose' to 'openssl req'.
2779 [Massimiliano Pala <madwolf@hackmasters.net>]
2781 *) Introduce the possibility to access global variables through
2782 functions on platform were that's the best way to handle exporting
2783 global variables in shared libraries. To enable this functionality,
2784 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
2785 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
2786 is normally done by Configure or something similar).
2788 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
2789 in the source file (foo.c) like this:
2791 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
2792 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
2794 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
2795 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
2797 OPENSSL_DECLARE_GLOBAL(int,foo);
2798 #define foo OPENSSL_GLOBAL_REF(foo)
2799 OPENSSL_DECLARE_GLOBAL(double,bar);
2800 #define bar OPENSSL_GLOBAL_REF(bar)
2802 The #defines are very important, and therefore so is including the
2803 header file everywhere where the defined globals are used.
2805 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
2806 of ASN.1 items, but that structure is a bit different.
2808 The largest change is in util/mkdef.pl which has been enhanced with
2809 better and easier to understand logic to choose which symbols should
2810 go into the Windows .def files as well as a number of fixes and code
2811 cleanup (among others, algorithm keywords are now sorted
2812 lexicographically to avoid constant rewrites).
2815 *) In BN_div() keep a copy of the sign of 'num' before writing the
2816 result to 'rm' because if rm==num the value will be overwritten
2817 and produce the wrong result if 'num' is negative: this caused
2818 problems with BN_mod() and BN_nnmod().
2821 *) Function OCSP_request_verify(). This checks the signature on an
2822 OCSP request and verifies the signer certificate. The signer
2823 certificate is just checked for a generic purpose and OCSP request
2827 *) Add OCSP_check_validity() function to check the validity of OCSP
2828 responses. OCSP responses are prepared in real time and may only
2829 be a few seconds old. Simply checking that the current time lies
2830 between thisUpdate and nextUpdate max reject otherwise valid responses
2831 caused by either OCSP responder or client clock inaccuracy. Instead
2832 we allow thisUpdate and nextUpdate to fall within a certain period of
2833 the current time. The age of the response can also optionally be
2834 checked. Two new options -validity_period and -status_age added to
2838 *) If signature or public key algorithm is unrecognized print out its
2839 OID rather that just UNKNOWN.
2842 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
2843 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
2844 ID to be generated from the issuer certificate alone which can then be
2845 passed to OCSP_id_issuer_cmp().
2848 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
2849 ASN1 modules to export functions returning ASN1_ITEM pointers
2850 instead of the ASN1_ITEM structures themselves. This adds several
2851 new macros which allow the underlying ASN1 function/structure to
2852 be accessed transparently. As a result code should not use ASN1_ITEM
2853 references directly (such as &X509_it) but instead use the relevant
2854 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
2855 use of the new ASN1 code on platforms where exporting structures
2856 is problematical (for example in shared libraries) but exporting
2857 functions returning pointers to structures is not.
2860 *) Add support for overriding the generation of SSL/TLS session IDs.
2861 These callbacks can be registered either in an SSL_CTX or per SSL.
2862 The purpose of this is to allow applications to control, if they wish,
2863 the arbitrary values chosen for use as session IDs, particularly as it
2864 can be useful for session caching in multiple-server environments. A
2865 command-line switch for testing this (and any client code that wishes
2866 to use such a feature) has been added to "s_server".
2867 [Geoff Thorpe, Lutz Jaenicke]
2869 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
2870 of the form '#if defined(...) || defined(...) || ...' and
2871 '#if !defined(...) && !defined(...) && ...'. This also avoids
2872 the growing number of special cases it was previously handling.
2875 *) Make all configuration macros available for application by making
2876 sure they are available in opensslconf.h, by giving them names starting
2877 with "OPENSSL_" to avoid conflicts with other packages and by making
2878 sure e_os2.h will cover all platform-specific cases together with
2880 Additionally, it is now possible to define configuration/platform-
2881 specific names (called "system identities"). In the C code, these
2882 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
2883 macro with the name beginning with "OPENSSL_SYS_", which is determined
2884 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
2888 *) New option -set_serial to 'req' and 'x509' this allows the serial
2889 number to use to be specified on the command line. Previously self
2890 signed certificates were hard coded with serial number 0 and the
2891 CA options of 'x509' had to use a serial number in a file which was
2895 *) New options to 'ca' utility to support V2 CRL entry extensions.
2896 Currently CRL reason, invalidity date and hold instruction are
2897 supported. Add new CRL extensions to V3 code and some new objects.
2900 *) New function EVP_CIPHER_CTX_set_padding() this is used to
2901 disable standard block padding (aka PKCS#5 padding) in the EVP
2902 API, which was previously mandatory. This means that the data is
2903 not padded in any way and so the total length much be a multiple
2904 of the block size, otherwise an error occurs.
2907 *) Initial (incomplete) OCSP SSL support.
2910 *) New function OCSP_parse_url(). This splits up a URL into its host,
2911 port and path components: primarily to parse OCSP URLs. New -url
2912 option to ocsp utility.
2915 *) New nonce behavior. The return value of OCSP_check_nonce() now
2916 reflects the various checks performed. Applications can decide
2917 whether to tolerate certain situations such as an absent nonce
2918 in a response when one was present in a request: the ocsp application
2919 just prints out a warning. New function OCSP_add1_basic_nonce()
2920 this is to allow responders to include a nonce in a response even if
2921 the request is nonce-less.
2924 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
2925 skipped when using openssl x509 multiple times on a single input file,
2926 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
2929 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
2930 set string type: to handle setting ASN1_TIME structures. Fix ca
2931 utility to correctly initialize revocation date of CRLs.
2934 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
2935 the clients preferred ciphersuites and rather use its own preferences.
2936 Should help to work around M$ SGC (Server Gated Cryptography) bug in
2937 Internet Explorer by ensuring unchanged hash method during stepup.
2938 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
2941 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
2942 to aes and add a new 'exist' option to print out symbols that don't
2946 *) Additional options to ocsp utility to allow flags to be set and
2947 additional certificates supplied.
2950 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
2951 OCSP client a number of certificate to only verify the response
2955 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
2956 handle the new API. Currently only ECB, CBC modes supported. Add new
2959 Add TLS AES ciphersuites as described in RFC3268, "Advanced
2960 Encryption Standard (AES) Ciphersuites for Transport Layer
2961 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
2962 not enabled by default and were not part of the "ALL" ciphersuite
2963 alias because they were not yet official; they could be
2964 explicitly requested by specifying the "AESdraft" ciphersuite
2965 group alias. In the final release of OpenSSL 0.9.7, the group
2966 alias is called "AES" and is part of "ALL".)
2967 [Ben Laurie, Steve Henson, Bodo Moeller]
2969 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
2970 request to response.
2973 *) Functions for OCSP responders. OCSP_request_onereq_count(),
2974 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
2975 extract information from a certificate request. OCSP_response_create()
2976 creates a response and optionally adds a basic response structure.
2977 OCSP_basic_add1_status() adds a complete single response to a basic
2978 response and returns the OCSP_SINGLERESP structure just added (to allow
2979 extensions to be included for example). OCSP_basic_add1_cert() adds a
2980 certificate to a basic response and OCSP_basic_sign() signs a basic
2981 response with various flags. New helper functions ASN1_TIME_check()
2982 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
2983 (converts ASN1_TIME to GeneralizedTime).
2986 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
2987 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
2988 structure from a certificate. X509_pubkey_digest() digests the public_key
2989 contents: this is used in various key identifiers.
2992 *) Make sk_sort() tolerate a NULL argument.
2993 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
2995 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
2996 passed by the function are trusted implicitly. If any of them signed the
2997 response then it is assumed to be valid and is not verified.
3000 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
3001 to data. This was previously part of the PKCS7 ASN1 code. This
3002 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
3003 [Steve Henson, reported by Kenneth R. Robinette
3004 <support@securenetterm.com>]
3006 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
3007 routines: without these tracing memory leaks is very painful.
3008 Fix leaks in PKCS12 and PKCS7 routines.
3011 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
3012 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
3013 effectively meant GeneralizedTime would never be used. Now it
3014 is initialised to -1 but X509_time_adj() now has to check the value
3015 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
3016 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
3017 [Steve Henson, reported by Kenneth R. Robinette
3018 <support@securenetterm.com>]
3020 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
3021 result in a zero length in the ASN1_INTEGER structure which was
3022 not consistent with the structure when d2i_ASN1_INTEGER() was used
3023 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
3024 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
3025 where it did not print out a minus for negative ASN1_INTEGER.
3028 *) Add summary printout to ocsp utility. The various functions which
3029 convert status values to strings have been renamed to:
3030 OCSP_response_status_str(), OCSP_cert_status_str() and
3031 OCSP_crl_reason_str() and are no longer static. New options
3032 to verify nonce values and to disable verification. OCSP response
3033 printout format cleaned up.
3036 *) Add additional OCSP certificate checks. These are those specified
3037 in RFC2560. This consists of two separate checks: the CA of the
3038 certificate being checked must either be the OCSP signer certificate
3039 or the issuer of the OCSP signer certificate. In the latter case the
3040 OCSP signer certificate must contain the OCSP signing extended key
3041 usage. This check is performed by attempting to match the OCSP
3042 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
3043 in the OCSP_CERTID structures of the response.
3046 *) Initial OCSP certificate verification added to OCSP_basic_verify()
3047 and related routines. This uses the standard OpenSSL certificate
3048 verify routines to perform initial checks (just CA validity) and
3049 to obtain the certificate chain. Then additional checks will be
3050 performed on the chain. Currently the root CA is checked to see
3051 if it is explicitly trusted for OCSP signing. This is used to set
3052 a root CA as a global signing root: that is any certificate that
3053 chains to that CA is an acceptable OCSP signing certificate.
3056 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
3057 extensions from a separate configuration file.
3058 As when reading extensions from the main configuration file,
3059 the '-extensions ...' option may be used for specifying the
3061 [Massimiliano Pala <madwolf@comune.modena.it>]
3063 *) New OCSP utility. Allows OCSP requests to be generated or
3064 read. The request can be sent to a responder and the output
3065 parsed, outputed or printed in text form. Not complete yet:
3066 still needs to check the OCSP response validity.
3069 *) New subcommands for 'openssl ca':
3070 'openssl ca -status <serial>' prints the status of the cert with
3071 the given serial number (according to the index file).
3072 'openssl ca -updatedb' updates the expiry status of certificates
3074 [Massimiliano Pala <madwolf@comune.modena.it>]
3076 *) New '-newreq-nodes' command option to CA.pl. This is like
3077 '-newreq', but calls 'openssl req' with the '-nodes' option
3078 so that the resulting key is not encrypted.
3079 [Damien Miller <djm@mindrot.org>]
3081 *) New configuration for the GNU Hurd.
3082 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
3084 *) Initial code to implement OCSP basic response verify. This
3085 is currently incomplete. Currently just finds the signer's
3086 certificate and verifies the signature on the response.
3089 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
3090 value of OPENSSLDIR. This is available via the new '-d' option
3091 to 'openssl version', and is also included in 'openssl version -a'.
3094 *) Allowing defining memory allocation callbacks that will be given
3095 file name and line number information in additional arguments
3096 (a const char* and an int). The basic functionality remains, as
3097 well as the original possibility to just replace malloc(),
3098 realloc() and free() by functions that do not know about these
3099 additional arguments. To register and find out the current
3100 settings for extended allocation functions, the following
3101 functions are provided:
3103 CRYPTO_set_mem_ex_functions
3104 CRYPTO_set_locked_mem_ex_functions
3105 CRYPTO_get_mem_ex_functions
3106 CRYPTO_get_locked_mem_ex_functions
3108 These work the same way as CRYPTO_set_mem_functions and friends.
3109 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
3110 extended allocation function is enabled.
3111 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
3112 a conventional allocation function is enabled.
3113 [Richard Levitte, Bodo Moeller]
3115 *) Finish off removing the remaining LHASH function pointer casts.
3116 There should no longer be any prototype-casting required when using
3117 the LHASH abstraction, and any casts that remain are "bugs". See
3118 the callback types and macros at the head of lhash.h for details
3119 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
3122 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
3123 If /dev/[u]random devices are not available or do not return enough
3124 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
3126 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
3127 /etc/entropy will be queried once each in this sequence, quering stops
3128 when enough entropy was collected without querying more sockets.
3131 *) Change the Unix RAND_poll() variant to be able to poll several
3132 random devices, as specified by DEVRANDOM, until a sufficient amount
3133 of data has been collected. We spend at most 10 ms on each file
3134 (select timeout) and read in non-blocking mode. DEVRANDOM now
3135 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
3136 (previously it was just the string "/dev/urandom"), so on typical
3137 platforms the 10 ms delay will never occur.
3138 Also separate out the Unix variant to its own file, rand_unix.c.
3139 For VMS, there's a currently-empty rand_vms.c.
3142 *) Move OCSP client related routines to ocsp_cl.c. These
3143 provide utility functions which an application needing
3144 to issue a request to an OCSP responder and analyse the
3145 response will typically need: as opposed to those which an
3146 OCSP responder itself would need which will be added later.
3148 OCSP_request_sign() signs an OCSP request with an API similar
3149 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
3150 response. OCSP_response_get1_basic() extracts basic response
3151 from response. OCSP_resp_find_status(): finds and extracts status
3152 information from an OCSP_CERTID structure (which will be created
3153 when the request structure is built). These are built from lower
3154 level functions which work on OCSP_SINGLERESP structures but
3155 wont normally be used unless the application wishes to examine
3156 extensions in the OCSP response for example.
3158 Replace nonce routines with a pair of functions.
3159 OCSP_request_add1_nonce() adds a nonce value and optionally
3160 generates a random value. OCSP_check_nonce() checks the
3161 validity of the nonce in an OCSP response.
3164 *) Change function OCSP_request_add() to OCSP_request_add0_id().
3165 This doesn't copy the supplied OCSP_CERTID and avoids the
3166 need to free up the newly created id. Change return type
3167 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
3168 This can then be used to add extensions to the request.
3169 Deleted OCSP_request_new(), since most of its functionality
3170 is now in OCSP_REQUEST_new() (and the case insensitive name
3171 clash) apart from the ability to set the request name which
3172 will be added elsewhere.
3175 *) Update OCSP API. Remove obsolete extensions argument from
3176 various functions. Extensions are now handled using the new
3177 OCSP extension code. New simple OCSP HTTP function which
3178 can be used to send requests and parse the response.
3181 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
3182 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
3183 uses the special reorder version of SET OF to sort the attributes
3184 and reorder them to match the encoded order. This resolves a long
3185 standing problem: a verify on a PKCS7 structure just after signing
3186 it used to fail because the attribute order did not match the
3187 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
3188 it uses the received order. This is necessary to tolerate some broken
3189 software that does not order SET OF. This is handled by encoding
3190 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
3191 to produce the required SET OF.
3194 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
3195 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
3196 files to get correct declarations of the ASN.1 item variables.
3199 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
3200 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
3201 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
3202 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
3203 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
3204 ASN1_ITEM and no wrapper functions.
3207 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
3208 replace the old function pointer based I/O routines. Change most of
3209 the *_d2i_bio() and *_d2i_fp() functions to use these.
3212 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
3213 lines, recognice more "algorithms" that can be deselected, and make
3214 it complain about algorithm deselection that isn't recognised.
3217 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
3218 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
3219 to use new functions. Add NO_ASN1_OLD which can be set to remove
3220 some old style ASN1 functions: this can be used to determine if old
3221 code will still work when these eventually go away.
3224 *) New extension functions for OCSP structures, these follow the
3225 same conventions as certificates and CRLs.
3228 *) New function X509V3_add1_i2d(). This automatically encodes and
3229 adds an extension. Its behaviour can be customised with various
3230 flags to append, replace or delete. Various wrappers added for
3231 certifcates and CRLs.
3234 *) Fix to avoid calling the underlying ASN1 print routine when
3235 an extension cannot be parsed. Correct a typo in the
3236 OCSP_SERVICELOC extension. Tidy up print OCSP format.
3239 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
3240 entries for variables.
3243 *) Add functionality to apps/openssl.c for detecting locking
3244 problems: As the program is single-threaded, all we have
3245 to do is register a locking callback using an array for
3246 storing which locks are currently held by the program.
3249 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
3250 SSL_get_ex_data_X509_STORE_idx(), which is used in
3251 ssl_verify_cert_chain() and thus can be called at any time
3252 during TLS/SSL handshakes so that thread-safety is essential.
3253 Unfortunately, the ex_data design is not at all suited
3254 for multi-threaded use, so it probably should be abolished.
3257 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
3258 [Broadcom, tweaked and integrated by Geoff Thorpe]
3260 *) Move common extension printing code to new function
3261 X509V3_print_extensions(). Reorganise OCSP print routines and
3262 implement some needed OCSP ASN1 functions. Add OCSP extensions.
3265 *) New function X509_signature_print() to remove duplication in some
3269 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
3270 set (this was treated exactly the same as SET OF previously). This
3271 is used to reorder the STACK representing the structure to match the
3272 encoding. This will be used to get round a problem where a PKCS7
3273 structure which was signed could not be verified because the STACK
3274 order did not reflect the encoded order.
3277 *) Reimplement the OCSP ASN1 module using the new code.
3280 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
3281 for its ASN1 operations. The old style function pointers still exist
3282 for now but they will eventually go away.
3285 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
3286 completely replaces the old ASN1 functionality with a table driven
3287 encoder and decoder which interprets an ASN1_ITEM structure describing
3288 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
3289 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
3290 has also been converted to the new form.
3293 *) Change BN_mod_exp_recp so that negative moduli are tolerated
3294 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
3295 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
3296 for negative moduli.
3299 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
3300 of not touching the result's sign bit.
3303 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
3307 *) Changed the LHASH code to use prototypes for callbacks, and created
3308 macros to declare and implement thin (optionally static) functions
3309 that provide type-safety and avoid function pointer casting for the
3310 type-specific callbacks.
3313 *) Added Kerberos Cipher Suites to be used with TLS, as written in
3315 [Veers Staats <staatsvr@asc.hpc.mil>,
3316 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
3318 *) Reformat the FAQ so the different questions and answers can be divided
3319 in sections depending on the subject.
3322 *) Have the zlib compression code load ZLIB.DLL dynamically under
3326 *) New function BN_mod_sqrt for computing square roots modulo a prime
3327 (using the probabilistic Tonelli-Shanks algorithm unless
3328 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
3329 be handled deterministically).
3330 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3332 *) Make BN_mod_inverse faster by explicitly handling small quotients
3333 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
3334 512 bits], about 30% for larger ones [1024 or 2048 bits].)
3337 *) New function BN_kronecker.
3340 *) Fix BN_gcd so that it works on negative inputs; the result is
3341 positive unless both parameters are zero.
3342 Previously something reasonably close to an infinite loop was
3343 possible because numbers could be growing instead of shrinking
3344 in the implementation of Euclid's algorithm.
3347 *) Fix BN_is_word() and BN_is_one() macros to take into account the
3348 sign of the number in question.
3350 Fix BN_is_word(a,w) to work correctly for w == 0.
3352 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
3353 because its test if the absolute value of 'a' equals 'w'.
3354 Note that BN_abs_is_word does *not* handle w == 0 reliably;
3355 it exists mostly for use in the implementations of BN_is_zero(),
3356 BN_is_one(), and BN_is_word().
3359 *) New function BN_swap.
3362 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
3363 the exponentiation functions are more likely to produce reasonable
3364 results on negative inputs.
3367 *) Change BN_mod_mul so that the result is always non-negative.
3368 Previously, it could be negative if one of the factors was negative;
3369 I don't think anyone really wanted that behaviour.
3372 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
3373 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
3374 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
3375 and add new functions:
3384 BN_mod_lshift1_quick
3388 These functions always generate non-negative results.
3390 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
3391 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
3393 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
3394 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
3395 be reduced modulo m.
3396 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3399 The following entry accidentily appeared in the CHANGES file
3400 distributed with OpenSSL 0.9.7. The modifications described in
3401 it do *not* apply to OpenSSL 0.9.7.
3403 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3404 was actually never needed) and in BN_mul(). The removal in BN_mul()
3405 required a small change in bn_mul_part_recursive() and the addition
3406 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3407 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3408 bn_sub_words() and bn_add_words() except they take arrays with
3413 *) In 'openssl passwd', verify passwords read from the terminal
3414 unless the '-salt' option is used (which usually means that
3415 verification would just waste user's time since the resulting
3416 hash is going to be compared with some given password hash)
3417 or the new '-noverify' option is used.
3419 This is an incompatible change, but it does not affect
3420 non-interactive use of 'openssl passwd' (passwords on the command
3421 line, '-stdin' option, '-in ...' option) and thus should not
3425 *) Remove all references to RSAref, since there's no more need for it.
3428 *) Make DSO load along a path given through an environment variable
3429 (SHLIB_PATH) with shl_load().
3432 *) Constify the ENGINE code as a result of BIGNUM constification.
3433 Also constify the RSA code and most things related to it. In a
3434 few places, most notable in the depth of the ASN.1 code, ugly
3435 casts back to non-const were required (to be solved at a later
3439 *) Make it so the openssl application has all engines loaded by default.
3442 *) Constify the BIGNUM routines a little more.
3445 *) Add the following functions:
3447 ENGINE_load_cswift()
3449 ENGINE_load_atalla()
3451 ENGINE_load_builtin_engines()
3453 That way, an application can itself choose if external engines that
3454 are built-in in OpenSSL shall ever be used or not. The benefit is
3455 that applications won't have to be linked with libdl or other dso
3456 libraries unless it's really needed.
3458 Changed 'openssl engine' to load all engines on demand.
3459 Changed the engine header files to avoid the duplication of some
3460 declarations (they differed!).
3463 *) 'openssl engine' can now list capabilities.
3466 *) Better error reporting in 'openssl engine'.
3469 *) Never call load_dh_param(NULL) in s_server.
3472 *) Add engine application. It can currently list engines by name and
3473 identity, and test if they are actually available.
3476 *) Improve RPM specification file by forcing symbolic linking and making
3477 sure the installed documentation is also owned by root.root.
3478 [Damien Miller <djm@mindrot.org>]
3480 *) Give the OpenSSL applications more possibilities to make use of
3481 keys (public as well as private) handled by engines.
3484 *) Add OCSP code that comes from CertCo.
3487 *) Add VMS support for the Rijndael code.
3490 *) Added untested support for Nuron crypto accelerator.
3493 *) Add support for external cryptographic devices. This code was
3494 previously distributed separately as the "engine" branch.
3495 [Geoff Thorpe, Richard Levitte]
3497 *) Rework the filename-translation in the DSO code. It is now possible to
3498 have far greater control over how a "name" is turned into a filename
3499 depending on the operating environment and any oddities about the
3500 different shared library filenames on each system.
3503 *) Support threads on FreeBSD-elf in Configure.
3506 *) Fix for SHA1 assembly problem with MASM: it produces
3507 warnings about corrupt line number information when assembling
3508 with debugging information. This is caused by the overlapping
3510 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
3513 NCONF_get_number() has no error checking at all. As a replacement,
3514 NCONF_get_number_e() is defined (_e for "error checking") and is
3515 promoted strongly. The old NCONF_get_number is kept around for
3516 binary backward compatibility.
3517 Make it possible for methods to load from something other than a BIO,
3518 by providing a function pointer that is given a name instead of a BIO.
3519 For example, this could be used to load configuration data from an
3523 *) Fix for non blocking accept BIOs. Added new I/O special reason
3524 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
3525 with non blocking I/O was not possible because no retry code was
3526 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
3530 *) Added the beginnings of Rijndael support.
3533 *) Fix for bug in DirectoryString mask setting. Add support for
3534 X509_NAME_print_ex() in 'req' and X509_print_ex() function
3535 to allow certificate printing to more controllable, additional
3536 'certopt' option to 'x509' to allow new printing options to be
3540 *) Clean old EAY MD5 hack from e_os.h.
3543 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
3545 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3546 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3547 [Joe Orton, Steve Henson]
3549 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
3551 *) Fix additional bug revealed by the NISCC test suite:
3553 Stop bug triggering large recursion when presented with
3554 certain ASN.1 tags (CVE-2003-0851)
3557 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
3559 *) Fix various bugs revealed by running the NISCC test suite:
3561 Stop out of bounds reads in the ASN1 code when presented with
3562 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3564 If verify callback ignores invalid public key errors don't try to check
3565 certificate signature with the NULL public key.
3569 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3570 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3574 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3575 extra data after the compression methods not only for TLS 1.0
3576 but also for SSL 3.0 (as required by the specification).
3577 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3579 *) Change X509_certificate_type() to mark the key as exported/exportable
3580 when it's 512 *bits* long, not 512 bytes.
3583 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
3585 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3586 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3587 a protocol version number mismatch like a decryption error
3588 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3591 *) Turn on RSA blinding by default in the default implementation
3592 to avoid a timing attack. Applications that don't want it can call
3593 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3594 They would be ill-advised to do so in most cases.
3595 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3597 *) Change RSA blinding code so that it works when the PRNG is not
3598 seeded (in this case, the secret RSA exponent is abused as
3599 an unpredictable seed -- if it is not unpredictable, there
3600 is no point in blinding anyway). Make RSA blinding thread-safe
3601 by remembering the creator's thread ID in rsa->blinding and
3602 having all other threads use local one-time blinding factors
3603 (this requires more computation than sharing rsa->blinding, but
3604 avoids excessive locking; and if an RSA object is not shared
3605 between threads, blinding will still be very fast).
3608 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
3610 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3611 via timing by performing a MAC computation even if incorrrect
3612 block cipher padding has been found. This is a countermeasure
3613 against active attacks where the attacker has to distinguish
3614 between bad padding and a MAC verification error. (CVE-2003-0078)
3616 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3617 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3618 Martin Vuagnoux (EPFL, Ilion)]
3620 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
3622 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
3623 memory from it's contents. This is done with a counter that will
3624 place alternating values in each byte. This can be used to solve
3625 two issues: 1) the removal of calls to memset() by highly optimizing
3626 compilers, and 2) cleansing with other values than 0, since those can
3627 be read through on certain media, for example a swap space on disk.
3630 *) Bugfix: client side session caching did not work with external caching,
3631 because the session->cipher setting was not restored when reloading
3632 from the external cache. This problem was masked, when
3633 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
3634 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
3637 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
3638 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
3639 [Zeev Lieber <zeev-l@yahoo.com>]
3641 *) Undo an undocumented change introduced in 0.9.6e which caused
3642 repeated calls to OpenSSL_add_all_ciphers() and
3643 OpenSSL_add_all_digests() to be ignored, even after calling
3647 *) Change the default configuration reader to deal with last line not
3648 being properly terminated.
3651 *) Change X509_NAME_cmp() so it applies the special rules on handling
3652 DN values that are of type PrintableString, as well as RDNs of type
3653 emailAddress where the value has the type ia5String.
3654 [stefank@valicert.com via Richard Levitte]
3656 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
3657 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
3658 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
3659 the bitwise-OR of the two for use by the majority of applications
3660 wanting this behaviour, and update the docs. The documented
3661 behaviour and actual behaviour were inconsistent and had been
3662 changing anyway, so this is more a bug-fix than a behavioural
3664 [Geoff Thorpe, diagnosed by Nadav Har'El]
3666 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
3667 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
3670 *) Fix initialization code race conditions in
3671 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
3672 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
3673 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
3674 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
3675 ssl2_get_cipher_by_char(),
3676 ssl3_get_cipher_by_char().
3677 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
3679 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
3680 the cached sessions are flushed, as the remove_cb() might use ex_data
3681 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
3682 (see [openssl.org #212]).
3683 [Geoff Thorpe, Lutz Jaenicke]
projects / openssl.git / blob