5 Changes between 0.9.8e and 0.9.9 [xx XXX xxxx]
7 *) Initial incomplete changes to avoid need for function casts in OpenSSL
8 when OPENSSL_NO_FCAST is set: some compilers (gcc 4.2 and later) reject
9 their use. Safestack is reimplemented using inline functions: tests show
10 that these calls are typically optimized away by compilers so they have
11 no additional overhead. Update ASN1 to avoid use of legacy functions.
14 *) Win32/64 targets are linked with Winsock2.
17 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
18 to external functions. This can be used to increase CRL handling
19 efficiency especially when CRLs are very large by (for example) storing
20 the CRL revoked certificates in a database.
23 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
24 new CRLs added to a directory can be used. New command line option
25 -verify_return_error to s_client and s_server. This causes real errors
26 to be returned by the verify callback instead of carrying on no matter
27 what. This reflects the way a "real world" verify callback would behave.
30 *) GOST engine, supporting several GOST algorithms and public key formats.
31 Kindly donated by Cryptocom.
34 *) Partial support for Issuing Distribution Point CRL extension. CRLs
35 partitioned by DP are handled but no indirect CRL or reason partitioning
36 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
37 selected via a scoring technique which handles IDP and AKID in CRLs.
40 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
41 will ultimately be used for all verify operations: this will remove the
42 X509_STORE dependency on certificate verification and allow alternative
43 lookup methods. X509_STORE based implementations of these two callbacks.
46 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
47 Modify get_crl() to find a valid (unexpired) CRL if possible.
50 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
51 this would be called X509_CRL_cmp() but that name is already used by
52 a function that just compares CRL issuer names. Cache several CRL
53 extensions in X509_CRL structure and cache CRLDP in X509.
56 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
57 this maps equivalent X509_NAME structures into a consistent structure.
58 Name comparison can then be performed rapidly using memcmp().
61 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
65 *) Allow digests to supply their own micalg string for S/MIME type using
66 the ctrl EVP_MD_CTRL_MICALG.
69 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
70 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
71 ctrl. It can then customise the structure before and/or after signing
75 *) New function OBJ_add_sigid() to allow application defined signature OIDs
76 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
77 to free up any added signature OIDs.
80 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
81 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
82 digest and cipher tables. New options added to openssl utility:
83 list-message-digest-algorithms and list-cipher-algorithms.
86 *) In addition to the numerical (unsigned long) thread ID, provide
87 for a pointer (void *) thread ID. This helps accomodate systems
88 that do not provide an unsigned long thread ID. OpenSSL assumes
89 it is in the same thread iff both the numerical and the pointer
90 thread ID agree; so applications are just required to define one
91 of them appropriately (e.g., by using a pointer to a per-thread
92 memory object malloc()ed by the application for the pointer-type
93 thread ID). Exactly analoguous to the existing functions
95 void CRYPTO_set_id_callback(unsigned long (*func)(void));
96 unsigned long (*CRYPTO_get_id_callback(void))(void);
97 unsigned long CRYPTO_thread_id(void);
99 we now have additional functions
101 void CRYPTO_set_idptr_callback(void *(*func)(void));
102 void *(*CRYPTO_get_idptr_callback(void))(void);
103 void *CRYPTO_thread_idptr(void);
105 also in <openssl/crypto.h>. The default value for
106 CRYPTO_thread_idptr() if the application has not provided its own
110 *) Change the array representation of binary polynomials: the list
111 of degrees of non-zero coefficients is now terminated with -1.
112 Previously it was terminated with 0, which was also part of the
113 value; thus, the array representation was not applicable to
114 polynomials where t^0 has coefficient zero. This change makes
115 the array representation useful in a more general context.
118 *) Various modifications and fixes to SSL/TLS cipher string
119 handling. For ECC, the code now distinguishes between fixed ECDH
120 with RSA certificates on the one hand and with ECDSA certificates
121 on the other hand, since these are separate ciphersuites. The
122 unused code for Fortezza ciphersuites has been removed.
124 For consistency with EDH, ephemeral ECDH is now called "EECDH"
125 (not "ECDHE"). For consistency with the code for DH
126 certificates, use of ECDH certificates is now considered ECDH
127 authentication, not RSA or ECDSA authentication (the latter is
128 merely the CA's signing algorithm and not actively used in the
131 The temporary ciphersuite alias "ECCdraft" is no longer
132 available, and ECC ciphersuites are no longer excluded from "ALL"
133 and "DEFAULT". The following aliases now exist for RFC 4492
134 ciphersuites, most of these by analogy with the DH case:
136 kECDHr - ECDH cert, signed with RSA
137 kECDHe - ECDH cert, signed with ECDSA
138 kECDH - ECDH cert (signed with either RSA or ECDSA)
139 kEECDH - ephemeral ECDH
140 ECDH - ECDH cert or ephemeral ECDH
146 AECDH - anonymous ECDH
147 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
151 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
152 Use correct micalg parameters depending on digest(s) in signed message.
155 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
156 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
159 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
160 an engine to register a method. Add ENGINE lookups for methods and
161 functional reference processing.
164 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
165 EVP_{Sign,Verify}* which allow an application to customise the signature
169 *) New -resign option to smime utility. This adds one or more signers
170 to an existing PKCS#7 signedData structure. Also -md option to use an
171 alternative message digest algorithm for signing.
174 *) Tidy up PKCS#7 routines and add new functions to make it easier to
175 create PKCS7 structures containing multiple signers. Update smime
176 application to support multiple signers.
179 *) New -macalg option to pkcs12 utility to allow setting of an alternative
183 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
184 Reorganize PBE internals to lookup from a static table using NIDs,
185 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
186 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
187 PRF which will be automatically used with PBES2.
190 *) Replace the algorithm specific calls to generate keys in "req" with the
194 *) Update PKCS#7 enveloped data routines to use new API. This is now
195 supported by any public key method supporting the encrypt operation. A
196 ctrl is added to allow the public key algorithm to examine or modify
197 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
201 *) Add a ctrl to asn1 method to allow a public key algorithm to express
202 a default digest type to use. In most cases this will be SHA1 but some
203 algorithms (such as GOST) need to specify an alternative digest. The
204 return value indicates how strong the prefernce is 1 means optional and
205 2 is mandatory (that is it is the only supported type). Modify
206 ASN1_item_sign() to accept a NULL digest argument to indicate it should
207 use the default md. Update openssl utilities to use the default digest
208 type for signing if it is not explicitly indicated.
211 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
212 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
213 signing method from the key type. This effectively removes the link
214 between digests and public key types.
217 *) Add an OID cross reference table and utility functions. Its purpose is to
218 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
219 rsaEncryption. This will allow some of the algorithm specific hackery
220 needed to use the correct OID to be removed.
223 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
224 structures for PKCS7_sign(). They are now set up by the relevant public
228 *) Add provisional EC pkey method with support for ECDSA and ECDH.
231 *) Add support for key derivation (agreement) in the API, DH method and
235 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
236 public and private key formats. As a side effect these add additional
237 command line functionality not previously available: DSA signatures can be
238 generated and verified using pkeyutl and DH key support and generation in
243 [Oliver Tappe <zooey@hirschkaefer.de>]
245 *) New make target "install_html_docs" installs HTML renditions of the
247 [Oliver Tappe <zooey@hirschkaefer.de>]
249 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
250 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
251 support key and parameter generation and add initial key generation
252 functionality for RSA.
255 *) Add functions for main EVP_PKEY_method operations. The undocumented
256 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
257 EVP_PKEY_{encrypt,decrypt}_old.
260 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
261 key API, doesn't do much yet.
264 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
265 public key algorithms. New option to openssl utility:
266 "list-public-key-algorithms" to print out info.
269 *) Implement the Supported Elliptic Curves Extension for
270 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
273 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
274 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
277 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
278 utilities such as rsa, dsa, dsaparam etc except they process any key
282 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
283 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
284 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
288 *) Initial support for pluggable public key ASN1.
289 De-spaghettify the public key ASN1 handling. Move public and private
290 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
291 algorithm specific handling to a single module within the relevant
292 algorithm directory. Add functions to allow (near) opaque processing
293 of public and private key structures.
296 *) Implement the Supported Point Formats Extension for
297 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
300 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
301 for the psk identity [hint] and the psk callback functions to the
302 SSL_SESSION, SSL and SSL_CTX structure.
305 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
309 SSL_CTX_use_psk_identity_hint
310 SSL_get_psk_identity_hint
312 SSL_use_psk_identity_hint
314 [Mika Kousa and Pasi Eronen of Nokia Corporation]
316 *) Add RFC 3161 compliant time stamp request creation, response generation
317 and response verification functionality.
318 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
320 *) Add initial support for TLS extensions, specifically for the server_name
321 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
322 have new members for a host name. The SSL data structure has an
323 additional member SSL_CTX *initial_ctx so that new sessions can be
324 stored in that context to allow for session resumption, even after the
325 SSL has been switched to a new SSL_CTX in reaction to a client's
326 server_name extension.
328 New functions (subject to change):
331 SSL_get_servername_type()
334 New CTRL codes and macros (subject to change):
336 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
337 - SSL_CTX_set_tlsext_servername_callback()
338 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
339 - SSL_CTX_set_tlsext_servername_arg()
340 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_hostname()
342 openssl s_client has a new '-servername ...' option.
344 openssl s_server has new options '-servername_host ...', '-cert2 ...',
345 '-key2 ...', '-servername_fatal' (subject to change). This allows
346 testing the HostName extension for a specific single host name ('-cert'
347 and '-key' remain fallbacks for handshakes without HostName
348 negotiation). If the unrecogninzed_name alert has to be sent, this by
349 default is a warning; it becomes fatal with the '-servername_fatal'
352 [Peter Sylvester, Remy Allais, Christophe Renou]
354 *) Whirlpool hash implementation is added.
357 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
358 bn(64,32). Because of instruction set limitations it doesn't have
359 any negative impact on performance. This was done mostly in order
360 to make it possible to share assembler modules, such as bn_mul_mont
361 implementations, between 32- and 64-bit builds without hassle.
364 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
365 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
369 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
370 dedicated Montgomery multiplication procedure, is introduced.
371 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
372 "64-bit" performance on certain 32-bit targets.
375 *) New option SSL_OP_NO_COMP to disable use of compression selectively
376 in SSL structures. New SSL ctrl to set maximum send fragment size.
377 Save memory by seeting the I/O buffer sizes dynamically instead of
378 using the maximum available value.
381 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
382 in addition to the text details.
385 *) Very, very preliminary EXPERIMENTAL support for printing of general
386 ASN1 structures. This currently produces rather ugly output and doesn't
387 handle several customised structures at all.
390 *) Integrated support for PVK file format and some related formats such
391 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
392 these in the 'rsa' and 'dsa' utilities.
395 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
398 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
399 place for the (very old) "NETSCAPE" format certificates which are now
400 handled using new ASN1 code equivalents.
403 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
404 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
405 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
408 *) Modify CRL distribution points extension code to print out previously
409 unsupported fields. Enhance extension setting code to allow setting of
413 *) Add print and set support for Issuing Distribution Point CRL extension.
416 *) Change 'Configure' script to enable Camellia by default.
419 Changes between 0.9.8d and 0.9.8e [XX xxx XXXX]
421 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
423 *) Introduce limits to prevent malicious keys being able to
424 cause a denial of service. (CVE-2006-2940)
425 [Steve Henson, Bodo Moeller]
427 *) Fix ASN.1 parsing of certain invalid structures that can result
428 in a denial of service. (CVE-2006-2937) [Steve Henson]
430 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
431 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
433 *) Fix SSL client code which could crash if connecting to a
434 malicious SSLv2 server. (CVE-2006-4343)
435 [Tavis Ormandy and Will Drewry, Google Security Team]
437 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
438 match only those. Before that, "AES256-SHA" would be interpreted
439 as a pattern and match "AES128-SHA" too (since AES128-SHA got
440 the same strength classification in 0.9.7h) as we currently only
441 have a single AES bit in the ciphersuite description bitmap.
442 That change, however, also applied to ciphersuite strings such as
443 "RC4-MD5" that intentionally matched multiple ciphersuites --
444 namely, SSL 2.0 ciphersuites in addition to the more common ones
445 from SSL 3.0/TLS 1.0.
447 So we change the selection algorithm again: Naming an explicit
448 ciphersuite selects this one ciphersuite, and any other similar
449 ciphersuite (same bitmap) from *other* protocol versions.
450 Thus, "RC4-MD5" again will properly select both the SSL 2.0
451 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
453 Since SSL 2.0 does not have any ciphersuites for which the
454 128/256 bit distinction would be relevant, this works for now.
455 The proper fix will be to use different bits for AES128 and
456 AES256, which would have avoided the problems from the beginning;
457 however, bits are scarce, so we can only do this in a new release
458 (not just a patchlevel) when we can change the SSL_CIPHER
459 definition to split the single 'unsigned long mask' bitmap into
460 multiple values to extend the available space.
464 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
466 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
467 (CVE-2006-4339) [Ben Laurie and Google Security Team]
469 *) Add AES IGE and biIGE modes.
472 *) Change the Unix randomness entropy gathering to use poll() when
473 possible instead of select(), since the latter has some
474 undesirable limitations.
475 [Darryl Miles via Richard Levitte and Bodo Moeller]
477 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
478 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
479 cannot be implicitly activated as part of, e.g., the "AES" alias.
480 However, please upgrade to OpenSSL 0.9.9[-dev] for
481 non-experimental use of the ECC ciphersuites to get TLS extension
482 support, which is required for curve and point format negotiation
483 to avoid potential handshake problems.
486 *) Disable rogue ciphersuites:
488 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
489 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
490 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
492 The latter two were purportedly from
493 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
496 Also deactive the remaining ciphersuites from
497 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
498 unofficial, and the ID has long expired.
501 *) Fix RSA blinding Heisenbug (problems sometimes occured on
502 dual-core machines) and other potential thread-safety issues.
505 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
506 versions), which is now available for royalty-free use
507 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
508 Also, add Camellia TLS ciphersuites from RFC 4132.
510 To minimize changes between patchlevels in the OpenSSL 0.9.8
511 series, Camellia remains excluded from compilation unless OpenSSL
512 is configured with 'enable-camellia'.
515 *) Disable the padding bug check when compression is in use. The padding
516 bug check assumes the first packet is of even length, this is not
517 necessarily true if compresssion is enabled and can result in false
518 positives causing handshake failure. The actual bug test is ancient
519 code so it is hoped that implementations will either have fixed it by
520 now or any which still have the bug do not support compression.
523 Changes between 0.9.8a and 0.9.8b [04 May 2006]
525 *) When applying a cipher rule check to see if string match is an explicit
526 cipher suite and only match that one cipher suite if it is.
529 *) Link in manifests for VC++ if needed.
530 [Austin Ziegler <halostatue@gmail.com>]
532 *) Update support for ECC-based TLS ciphersuites according to
533 draft-ietf-tls-ecc-12.txt with proposed changes (but without
534 TLS extensions, which are supported starting with the 0.9.9
535 branch, not in the OpenSSL 0.9.8 branch).
538 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
539 opaque EVP_CIPHER_CTX handling.
542 *) Fixes and enhancements to zlib compression code. We now only use
543 "zlib1.dll" and use the default __cdecl calling convention on Win32
544 to conform with the standards mentioned here:
545 http://www.zlib.net/DLL_FAQ.txt
546 Static zlib linking now works on Windows and the new --with-zlib-include
547 --with-zlib-lib options to Configure can be used to supply the location
548 of the headers and library. Gracefully handle case where zlib library
552 *) Several fixes and enhancements to the OID generation code. The old code
553 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
554 handle numbers larger than ULONG_MAX, truncated printing and had a
555 non standard OBJ_obj2txt() behaviour.
558 *) Add support for building of engines under engine/ as shared libraries
559 under VC++ build system.
562 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
563 Hopefully, we will not see any false combination of paths any more.
566 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
568 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
569 (part of SSL_OP_ALL). This option used to disable the
570 countermeasure against man-in-the-middle protocol-version
571 rollback in the SSL 2.0 server implementation, which is a bad
572 idea. (CVE-2005-2969)
574 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
575 for Information Security, National Institute of Advanced Industrial
576 Science and Technology [AIST], Japan)]
578 *) Add two function to clear and return the verify parameter flags.
581 *) Keep cipherlists sorted in the source instead of sorting them at
582 runtime, thus removing the need for a lock.
585 *) Avoid some small subgroup attacks in Diffie-Hellman.
586 [Nick Mathewson and Ben Laurie]
588 *) Add functions for well-known primes.
591 *) Extended Windows CE support.
592 [Satoshi Nakamura and Andy Polyakov]
594 *) Initialize SSL_METHOD structures at compile time instead of during
595 runtime, thus removing the need for a lock.
598 *) Make PKCS7_decrypt() work even if no certificate is supplied by
599 attempting to decrypt each encrypted key in turn. Add support to
603 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
605 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
608 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
611 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
612 key into the same file any more.
615 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
618 *) Add -utf8 command line and config file option to 'ca'.
619 [Stefan <stf@udoma.org]
621 *) Removed the macro des_crypt(), as it seems to conflict with some
622 libraries. Use DES_crypt().
625 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
626 involves renaming the source and generated shared-libs for
627 both. The engines will accept the corrected or legacy ids
628 ('ncipher' and '4758_cca' respectively) when binding. NB,
629 this only applies when building 'shared'.
630 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
632 *) Add attribute functions to EVP_PKEY structure. Modify
633 PKCS12_create() to recognize a CSP name attribute and
634 use it. Make -CSP option work again in pkcs12 utility.
637 *) Add new functionality to the bn blinding code:
638 - automatic re-creation of the BN_BLINDING parameters after
639 a fixed number of uses (currently 32)
640 - add new function for parameter creation
641 - introduce flags to control the update behaviour of the
642 BN_BLINDING parameters
643 - hide BN_BLINDING structure
644 Add a second BN_BLINDING slot to the RSA structure to improve
645 performance when a single RSA object is shared among several
649 *) Add support for DTLS.
650 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
652 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
653 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
656 *) Remove buggy and incompletet DH cert support from
657 ssl/ssl_rsa.c and ssl/s3_both.c
660 *) Use SHA-1 instead of MD5 as the default digest algorithm for
661 the apps/openssl applications.
664 *) Compile clean with "-Wall -Wmissing-prototypes
665 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
666 DEBUG_SAFESTACK must also be set.
669 *) Change ./Configure so that certain algorithms can be disabled by default.
670 The new counterpiece to "no-xxx" is "enable-xxx".
672 The patented RC5 and MDC2 algorithms will now be disabled unless
673 "enable-rc5" and "enable-mdc2", respectively, are specified.
675 (IDEA remains enabled despite being patented. This is because IDEA
676 is frequently required for interoperability, and there is no license
677 fee for non-commercial use. As before, "no-idea" can be used to
678 avoid this algorithm.)
682 *) Add processing of proxy certificates (see RFC 3820). This work was
683 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
684 EGEE (Enabling Grids for E-science in Europe).
687 *) RC4 performance overhaul on modern architectures/implementations, such
688 as Intel P4, IA-64 and AMD64.
691 *) New utility extract-section.pl. This can be used specify an alternative
692 section number in a pod file instead of having to treat each file as
693 a separate case in Makefile. This can be done by adding two lines to the
696 =for comment openssl_section:XXX
698 The blank line is mandatory.
702 *) New arguments -certform, -keyform and -pass for s_client and s_server
703 to allow alternative format key and certificate files and passphrase
707 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
708 update associated structures and add various utility functions.
710 Add new policy related verify parameters, include policy checking in
711 standard verify code. Enhance 'smime' application with extra parameters
712 to support policy checking and print out.
715 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
716 Nehemiah processors. These extensions support AES encryption in hardware
717 as well as RNG (though RNG support is currently disabled).
718 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
720 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
723 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
724 [Andy Polyakov and a number of other people]
726 *) Improved PowerPC platform support. Most notably BIGNUM assembler
727 implementation contributed by IBM.
728 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
730 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
731 exponent rather than 'unsigned long'. There is a corresponding change to
732 the new 'rsa_keygen' element of the RSA_METHOD structure.
733 [Jelte Jansen, Geoff Thorpe]
735 *) Functionality for creating the initial serial number file is now
736 moved from CA.pl to the 'ca' utility with a new option -create_serial.
738 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
739 number file to 1, which is bound to cause problems. To avoid
740 the problems while respecting compatibility between different 0.9.7
741 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
742 CA.pl for serial number initialization. With the new release 0.9.8,
743 we can fix the problem directly in the 'ca' utility.)
746 *) Reduced header interdepencies by declaring more opaque objects in
747 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
748 give fewer recursive includes, which could break lazy source code - so
749 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
750 developers should define this symbol when building and using openssl to
751 ensure they track the recommended behaviour, interfaces, [etc], but
752 backwards-compatible behaviour prevails when this isn't defined.
755 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
758 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
759 This will generate a random key of the appropriate length based on the
760 cipher context. The EVP_CIPHER can provide its own random key generation
761 routine to support keys of a specific form. This is used in the des and
762 3des routines to generate a key of the correct parity. Update S/MIME
763 code to use new functions and hence generate correct parity DES keys.
764 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
765 valid (weak or incorrect parity).
768 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
769 as looking them up. This is useful when the verified structure may contain
770 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
771 present unless the new PKCS7_NO_CRL flag is asserted.
774 *) Extend ASN1 oid configuration module. It now additionally accepts the
777 shortName = some long name, 1.2.3.4
780 *) Reimplemented the BN_CTX implementation. There is now no more static
781 limitation on the number of variables it can handle nor the depth of the
782 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
783 information can now expand as required, and rather than having a single
784 static array of bignums, BN_CTX now uses a linked-list of such arrays
785 allowing it to expand on demand whilst maintaining the usefulness of
789 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
790 to allow all RSA operations to function using a single BN_CTX.
793 *) Preliminary support for certificate policy evaluation and checking. This
794 is initially intended to pass the tests outlined in "Conformance Testing
795 of Relying Party Client Certificate Path Processing Logic" v1.07.
798 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
799 remained unused and not that useful. A variety of other little bignum
800 tweaks and fixes have also been made continuing on from the audit (see
804 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
805 associated ASN1, EVP and SSL functions and old ASN1 macros.
808 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
809 and this should never fail. So the return value from the use of
810 BN_set_word() (which can fail due to needless expansion) is now deprecated;
811 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
814 *) BN_CTX_get() should return zero-valued bignums, providing the same
815 initialised value as BN_new().
816 [Geoff Thorpe, suggested by Ulf Möller]
818 *) Support for inhibitAnyPolicy certificate extension.
821 *) An audit of the BIGNUM code is underway, for which debugging code is
822 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
823 is considered valid when processing BIGNUMs, and causes execution to
824 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
825 further steps are taken to deliberately pollute unused data in BIGNUM
826 structures to try and expose faulty code further on. For now, openssl will
827 (in its default mode of operation) continue to tolerate the inconsistent
828 forms that it has tolerated in the past, but authors and packagers should
829 consider trying openssl and their own applications when compiled with
830 these debugging symbols defined. It will help highlight potential bugs in
831 their own code, and will improve the test coverage for OpenSSL itself. At
832 some point, these tighter rules will become openssl's default to improve
833 maintainability, though the assert()s and other overheads will remain only
834 in debugging configurations. See bn.h for more details.
835 [Geoff Thorpe, Nils Larsch, Ulf Möller]
837 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
838 that can only be obtained through BN_CTX_new() (which implicitly
839 initialises it). The presence of this function only made it possible
840 to overwrite an existing structure (and cause memory leaks).
843 *) Because of the callback-based approach for implementing LHASH as a
844 template type, lh_insert() adds opaque objects to hash-tables and
845 lh_doall() or lh_doall_arg() are typically used with a destructor callback
846 to clean up those corresponding objects before destroying the hash table
847 (and losing the object pointers). So some over-zealous constifications in
848 LHASH have been relaxed so that lh_insert() does not take (nor store) the
849 objects as "const" and the lh_doall[_arg] callback wrappers are not
850 prototyped to have "const" restrictions on the object pointers they are
851 given (and so aren't required to cast them away any more).
854 *) The tmdiff.h API was so ugly and minimal that our own timing utility
855 (speed) prefers to use its own implementation. The two implementations
856 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
857 its object type properly exposed (MS_TM) instead of casting to/from "char
858 *". This may still change yet if someone realises MS_TM and "ms_time_***"
859 aren't necessarily the greatest nomenclatures - but this is what was used
860 internally to the implementation so I've used that for now.
863 *) Ensure that deprecated functions do not get compiled when
864 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
865 the self-tests were still using deprecated key-generation functions so
866 these have been updated also.
869 *) Reorganise PKCS#7 code to separate the digest location functionality
870 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
871 New function PKCS7_set_digest() to set the digest type for PKCS#7
872 digestedData type. Add additional code to correctly generate the
873 digestedData type and add support for this type in PKCS7 initialization
877 *) New function PKCS7_set0_type_other() this initializes a PKCS7
878 structure of type "other".
881 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
882 sure the loop does correctly stop and breaking ("division by zero")
883 modulus operations are not performed. The (pre-generated) prime
884 table crypto/bn/bn_prime.h was already correct, but it could not be
885 re-generated on some platforms because of the "division by zero"
886 situation in the script.
887 [Ralf S. Engelschall]
889 *) Update support for ECC-based TLS ciphersuites according to
890 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
891 SHA-1 now is only used for "small" curves (where the
892 representation of a field element takes up to 24 bytes); for
893 larger curves, the field element resulting from ECDH is directly
894 used as premaster secret.
895 [Douglas Stebila (Sun Microsystems Laboratories)]
897 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
898 curve secp160r1 to the tests.
899 [Douglas Stebila (Sun Microsystems Laboratories)]
901 *) Add the possibility to load symbols globally with DSO.
902 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
904 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
905 control of the error stack.
908 *) Add support for STORE in ENGINE.
911 *) Add the STORE type. The intention is to provide a common interface
912 to certificate and key stores, be they simple file-based stores, or
913 HSM-type store, or LDAP stores, or...
914 NOTE: The code is currently UNTESTED and isn't really used anywhere.
917 *) Add a generic structure called OPENSSL_ITEM. This can be used to
918 pass a list of arguments to any function as well as provide a way
919 for a function to pass data back to the caller.
922 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
923 works like BUF_strdup() but can be used to duplicate a portion of
924 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
928 *) Add the function sk_find_ex() which works like sk_find(), but will
929 return an index to an element even if an exact match couldn't be
930 found. The index is guaranteed to point at the element where the
931 searched-for key would be inserted to preserve sorting order.
934 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
935 takes an extra flags argument for optional functionality. Currently,
936 the following flags are defined:
938 OBJ_BSEARCH_VALUE_ON_NOMATCH
939 This one gets OBJ_bsearch_ex() to return a pointer to the first
940 element where the comparing function returns a negative or zero
943 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
944 This one gets OBJ_bsearch_ex() to return a pointer to the first
945 element where the comparing function returns zero. This is useful
946 if there are more than one element where the comparing function
950 *) Make it possible to create self-signed certificates with 'openssl ca'
951 in such a way that the self-signed certificate becomes part of the
952 CA database and uses the same mechanisms for serial number generation
953 as all other certificate signing. The new flag '-selfsign' enables
954 this functionality. Adapt CA.sh and CA.pl.in.
957 *) Add functionality to check the public key of a certificate request
958 against a given private. This is useful to check that a certificate
959 request can be signed by that key (self-signing).
962 *) Make it possible to have multiple active certificates with the same
963 subject in the CA index file. This is done only if the keyword
964 'unique_subject' is set to 'no' in the main CA section (default
965 if 'CA_default') of the configuration file. The value is saved
966 with the database itself in a separate index attribute file,
967 named like the index file with '.attr' appended to the name.
970 *) Generate muti valued AVAs using '+' notation in config files for
974 *) Support for nameConstraints certificate extension.
977 *) Support for policyConstraints certificate extension.
980 *) Support for policyMappings certificate extension.
983 *) Make sure the default DSA_METHOD implementation only uses its
984 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
985 and change its own handlers to be NULL so as to remove unnecessary
986 indirection. This lets alternative implementations fallback to the
987 default implementation more easily.
990 *) Support for directoryName in GeneralName related extensions
994 *) Make it possible to link applications using Makefile.shared.
995 Make that possible even when linking against static libraries!
998 *) Support for single pass processing for S/MIME signing. This now
999 means that S/MIME signing can be done from a pipe, in addition
1000 cleartext signing (multipart/signed type) is effectively streaming
1001 and the signed data does not need to be all held in memory.
1003 This is done with a new flag PKCS7_STREAM. When this flag is set
1004 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
1005 is done after the data is output (and digests calculated) in
1006 SMIME_write_PKCS7().
1009 *) Add full support for -rpath/-R, both in shared libraries and
1010 applications, at least on the platforms where it's known how
1014 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
1015 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
1016 will now compute a table of multiples of the generator that
1017 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
1018 faster (notably in the case of a single point multiplication,
1019 scalar * generator).
1020 [Nils Larsch, Bodo Moeller]
1022 *) IPv6 support for certificate extensions. The various extensions
1023 which use the IP:a.b.c.d can now take IPv6 addresses using the
1024 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
1028 *) Added an ENGINE that implements RSA by performing private key
1029 exponentiations with the GMP library. The conversions to and from
1030 GMP's mpz_t format aren't optimised nor are any montgomery forms
1031 cached, and on x86 it appears OpenSSL's own performance has caught up.
1032 However there are likely to be other architectures where GMP could
1033 provide a boost. This ENGINE is not built in by default, but it can be
1034 specified at Configure time and should be accompanied by the necessary
1035 linker additions, eg;
1036 ./config -DOPENSSL_USE_GMP -lgmp
1039 *) "openssl engine" will not display ENGINE/DSO load failure errors when
1040 testing availability of engines with "-t" - the old behaviour is
1041 produced by increasing the feature's verbosity with "-tt".
1044 *) ECDSA routines: under certain error conditions uninitialized BN objects
1045 could be freed. Solution: make sure initialization is performed early
1046 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
1050 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
1051 and DH_METHOD (eg. by ENGINE implementations) to override the normal
1052 software implementations. For DSA and DH, parameter generation can
1053 also be overriden by providing the appropriate method callbacks.
1056 *) Change the "progress" mechanism used in key-generation and
1057 primality testing to functions that take a new BN_GENCB pointer in
1058 place of callback/argument pairs. The new API functions have "_ex"
1059 postfixes and the older functions are reimplemented as wrappers for
1060 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
1061 declarations of the old functions to help (graceful) attempts to
1062 migrate to the new functions. Also, the new key-generation API
1063 functions operate on a caller-supplied key-structure and return
1064 success/failure rather than returning a key or NULL - this is to
1065 help make "keygen" another member function of RSA_METHOD etc.
1067 Example for using the new callback interface:
1069 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
1073 BN_GENCB_set(&my_cb, my_callback, my_arg);
1075 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
1076 /* For the meaning of a, b in calls to my_callback(), see the
1077 * documentation of the function that calls the callback.
1078 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
1079 * my_callback should return 1 if it wants BN_is_prime_ex()
1080 * to continue, or 0 to stop.
1085 *) Change the ZLIB compression method to be stateful, and make it
1086 available to TLS with the number defined in
1087 draft-ietf-tls-compression-04.txt.
1090 *) Add the ASN.1 structures and functions for CertificatePair, which
1091 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
1093 CertificatePair ::= SEQUENCE {
1094 forward [0] Certificate OPTIONAL,
1095 reverse [1] Certificate OPTIONAL,
1096 -- at least one of the pair shall be present -- }
1098 Also implement the PEM functions to read and write certificate
1099 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
1101 This needed to be defined, mostly for the sake of the LDAP
1102 attribute crossCertificatePair, but may prove useful elsewhere as
1106 *) Make it possible to inhibit symlinking of shared libraries in
1107 Makefile.shared, for Cygwin's sake.
1110 *) Extend the BIGNUM API by creating a function
1111 void BN_set_negative(BIGNUM *a, int neg);
1112 and a macro that behave like
1113 int BN_is_negative(const BIGNUM *a);
1115 to avoid the need to access 'a->neg' directly in applications.
1118 *) Implement fast modular reduction for pseudo-Mersenne primes
1119 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
1120 EC_GROUP_new_curve_GFp() will now automatically use this
1122 [Nils Larsch <nla@trustcenter.de>]
1124 *) Add new lock type (CRYPTO_LOCK_BN).
1127 *) Change the ENGINE framework to automatically load engines
1128 dynamically from specific directories unless they could be
1129 found to already be built in or loaded. Move all the
1130 current engines except for the cryptodev one to a new
1132 The engines in engines/ are built as shared libraries if
1133 the "shared" options was given to ./Configure or ./config.
1134 Otherwise, they are inserted in libcrypto.a.
1135 /usr/local/ssl/engines is the default directory for dynamic
1136 engines, but that can be overriden at configure time through
1137 the usual use of --prefix and/or --openssldir, and at run
1138 time with the environment variable OPENSSL_ENGINES.
1139 [Geoff Thorpe and Richard Levitte]
1141 *) Add Makefile.shared, a helper makefile to build shared
1142 libraries. Addapt Makefile.org.
1145 *) Add version info to Win32 DLLs.
1146 [Peter 'Luna' Runestig" <peter@runestig.com>]
1148 *) Add new 'medium level' PKCS#12 API. Certificates and keys
1149 can be added using this API to created arbitrary PKCS#12
1150 files while avoiding the low level API.
1152 New options to PKCS12_create(), key or cert can be NULL and
1153 will then be omitted from the output file. The encryption
1154 algorithm NIDs can be set to -1 for no encryption, the mac
1155 iteration count can be set to 0 to omit the mac.
1157 Enhance pkcs12 utility by making the -nokeys and -nocerts
1158 options work when creating a PKCS#12 file. New option -nomac
1159 to omit the mac, NONE can be set for an encryption algorithm.
1160 New code is modified to use the enhanced PKCS12_create()
1161 instead of the low level API.
1164 *) Extend ASN1 encoder to support indefinite length constructed
1165 encoding. This can output sequences tags and octet strings in
1166 this form. Modify pk7_asn1.c to support indefinite length
1167 encoding. This is experimental and needs additional code to
1168 be useful, such as an ASN1 bio and some enhanced streaming
1171 Extend template encode functionality so that tagging is passed
1172 down to the template encoder.
1175 *) Let 'openssl req' fail if an argument to '-newkey' is not
1176 recognized instead of using RSA as a default.
1179 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
1180 As these are not official, they are not included in "ALL";
1181 the "ECCdraft" ciphersuite group alias can be used to select them.
1182 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
1184 *) Add ECDH engine support.
1185 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
1187 *) Add ECDH in new directory crypto/ecdh/.
1188 [Douglas Stebila (Sun Microsystems Laboratories)]
1190 *) Let BN_rand_range() abort with an error after 100 iterations
1191 without success (which indicates a broken PRNG).
1194 *) Change BN_mod_sqrt() so that it verifies that the input value
1195 is really the square of the return value. (Previously,
1196 BN_mod_sqrt would show GIGO behaviour.)
1199 *) Add named elliptic curves over binary fields from X9.62, SECG,
1200 and WAP/WTLS; add OIDs that were still missing.
1202 [Sheueling Chang Shantz and Douglas Stebila
1203 (Sun Microsystems Laboratories)]
1205 *) Extend the EC library for elliptic curves over binary fields
1206 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
1209 EC_GF2m_simple_method
1213 EC_GROUP_new_curve_GF2m
1214 EC_GROUP_set_curve_GF2m
1215 EC_GROUP_get_curve_GF2m
1216 EC_POINT_set_affine_coordinates_GF2m
1217 EC_POINT_get_affine_coordinates_GF2m
1218 EC_POINT_set_compressed_coordinates_GF2m
1220 Point compression for binary fields is disabled by default for
1221 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
1224 As binary polynomials are represented as BIGNUMs, various members
1225 of the EC_GROUP and EC_POINT data structures can be shared
1226 between the implementations for prime fields and binary fields;
1227 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
1228 are essentially identical to their ..._GFp counterparts.
1229 (For simplicity, the '..._GFp' prefix has been dropped from
1230 various internal method names.)
1232 An internal 'field_div' method (similar to 'field_mul' and
1233 'field_sqr') has been added; this is used only for binary fields.
1235 [Sheueling Chang Shantz and Douglas Stebila
1236 (Sun Microsystems Laboratories)]
1238 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
1239 through methods ('mul', 'precompute_mult').
1241 The generic implementations (now internally called 'ec_wNAF_mul'
1242 and 'ec_wNAF_precomputed_mult') remain the default if these
1243 methods are undefined.
1245 [Sheueling Chang Shantz and Douglas Stebila
1246 (Sun Microsystems Laboratories)]
1248 *) New function EC_GROUP_get_degree, which is defined through
1249 EC_METHOD. For curves over prime fields, this returns the bit
1250 length of the modulus.
1252 [Sheueling Chang Shantz and Douglas Stebila
1253 (Sun Microsystems Laboratories)]
1255 *) New functions EC_GROUP_dup, EC_POINT_dup.
1256 (These simply call ..._new and ..._copy).
1258 [Sheueling Chang Shantz and Douglas Stebila
1259 (Sun Microsystems Laboratories)]
1261 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
1262 Polynomials are represented as BIGNUMs (where the sign bit is not
1263 used) in the following functions [macros]:
1266 BN_GF2m_sub [= BN_GF2m_add]
1267 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
1268 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
1269 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
1271 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
1272 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
1273 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
1274 BN_GF2m_cmp [= BN_ucmp]
1276 (Note that only the 'mod' functions are actually for fields GF(2^m).
1277 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
1279 For some functions, an the irreducible polynomial defining a
1280 field can be given as an 'unsigned int[]' with strictly
1281 decreasing elements giving the indices of those bits that are set;
1282 i.e., p[] represents the polynomial
1283 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
1285 p[0] > p[1] > ... > p[k] = 0.
1286 This applies to the following functions:
1291 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
1292 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
1294 BN_GF2m_mod_sqrt_arr
1295 BN_GF2m_mod_solve_quad_arr
1299 Conversion can be performed by the following functions:
1304 bntest.c has additional tests for binary polynomial arithmetic.
1306 Two implementations for BN_GF2m_mod_div() are available.
1307 The default algorithm simply uses BN_GF2m_mod_inv() and
1308 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
1309 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
1310 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
1312 [Sheueling Chang Shantz and Douglas Stebila
1313 (Sun Microsystems Laboratories)]
1315 *) Add new error code 'ERR_R_DISABLED' that can be used when some
1316 functionality is disabled at compile-time.
1317 [Douglas Stebila <douglas.stebila@sun.com>]
1319 *) Change default behaviour of 'openssl asn1parse' so that more
1320 information is visible when viewing, e.g., a certificate:
1322 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
1323 mode the content of non-printable OCTET STRINGs is output in a
1324 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
1325 avoid the appearance of a printable string.
1326 [Nils Larsch <nla@trustcenter.de>]
1328 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
1330 EC_GROUP_set_asn1_flag()
1331 EC_GROUP_get_asn1_flag()
1332 EC_GROUP_set_point_conversion_form()
1333 EC_GROUP_get_point_conversion_form()
1334 These control ASN1 encoding details:
1335 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
1336 has been set to OPENSSL_EC_NAMED_CURVE.
1337 - Points are encoded in uncompressed form by default; options for
1338 asn1_for are as for point2oct, namely
1339 POINT_CONVERSION_COMPRESSED
1340 POINT_CONVERSION_UNCOMPRESSED
1341 POINT_CONVERSION_HYBRID
1343 Also add 'seed' and 'seed_len' members to EC_GROUP with access
1346 EC_GROUP_get0_seed()
1347 EC_GROUP_get_seed_len()
1348 This is used only for ASN1 purposes (so far).
1349 [Nils Larsch <nla@trustcenter.de>]
1351 *) Add 'field_type' member to EC_METHOD, which holds the NID
1352 of the appropriate field type OID. The new function
1353 EC_METHOD_get_field_type() returns this value.
1354 [Nils Larsch <nla@trustcenter.de>]
1359 EC_POINT_point2hex()
1360 EC_POINT_hex2point()
1361 providing useful interfaces to EC_POINT_point2oct() and
1362 EC_POINT_oct2point().
1363 [Nils Larsch <nla@trustcenter.de>]
1365 *) Change internals of the EC library so that the functions
1366 EC_GROUP_set_generator()
1367 EC_GROUP_get_generator()
1368 EC_GROUP_get_order()
1369 EC_GROUP_get_cofactor()
1370 are implemented directly in crypto/ec/ec_lib.c and not dispatched
1371 to methods, which would lead to unnecessary code duplication when
1372 adding different types of curves.
1373 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
1375 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
1376 arithmetic, and such that modified wNAFs are generated
1377 (which avoid length expansion in many cases).
1380 *) Add a function EC_GROUP_check_discriminant() (defined via
1381 EC_METHOD) that verifies that the curve discriminant is non-zero.
1383 Add a function EC_GROUP_check() that makes some sanity tests
1384 on a EC_GROUP, its generator and order. This includes
1385 EC_GROUP_check_discriminant().
1386 [Nils Larsch <nla@trustcenter.de>]
1388 *) Add ECDSA in new directory crypto/ecdsa/.
1390 Add applications 'openssl ecparam' and 'openssl ecdsa'
1391 (these are based on 'openssl dsaparam' and 'openssl dsa').
1393 ECDSA support is also included in various other files across the
1394 library. Most notably,
1395 - 'openssl req' now has a '-newkey ecdsa:file' option;
1396 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
1397 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
1398 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
1399 them suitable for ECDSA where domain parameters must be
1400 extracted before the specific public key;
1401 - ECDSA engine support has been added.
1402 [Nils Larsch <nla@trustcenter.de>]
1404 *) Include some named elliptic curves, and add OIDs from X9.62,
1405 SECG, and WAP/WTLS. Each curve can be obtained from the new
1407 EC_GROUP_new_by_curve_name(),
1408 and the list of available named curves can be obtained with
1409 EC_get_builtin_curves().
1410 Also add a 'curve_name' member to EC_GROUP objects, which can be
1412 EC_GROUP_set_curve_name()
1413 EC_GROUP_get_curve_name()
1414 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
1416 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
1417 was actually never needed) and in BN_mul(). The removal in BN_mul()
1418 required a small change in bn_mul_part_recursive() and the addition
1419 of the functions bn_cmp_part_words(), bn_sub_part_words() and
1420 bn_add_part_words(), which do the same thing as bn_cmp_words(),
1421 bn_sub_words() and bn_add_words() except they take arrays with
1425 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
1427 *) Introduce limits to prevent malicious keys being able to
1428 cause a denial of service. (CVE-2006-2940)
1429 [Steve Henson, Bodo Moeller]
1431 *) Fix ASN.1 parsing of certain invalid structures that can result
1432 in a denial of service. (CVE-2006-2937) [Steve Henson]
1434 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1435 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1437 *) Fix SSL client code which could crash if connecting to a
1438 malicious SSLv2 server. (CVE-2006-4343)
1439 [Tavis Ormandy and Will Drewry, Google Security Team]
1441 *) Change ciphersuite string processing so that an explicit
1442 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
1443 will no longer include "AES128-SHA"), and any other similar
1444 ciphersuite (same bitmap) from *other* protocol versions (so that
1445 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
1446 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
1447 changes from 0.9.8b and 0.9.8d.
1450 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
1452 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1453 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1455 *) Change the Unix randomness entropy gathering to use poll() when
1456 possible instead of select(), since the latter has some
1457 undesirable limitations.
1458 [Darryl Miles via Richard Levitte and Bodo Moeller]
1460 *) Disable rogue ciphersuites:
1462 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1463 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1464 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1466 The latter two were purportedly from
1467 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1470 Also deactive the remaining ciphersuites from
1471 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1472 unofficial, and the ID has long expired.
1475 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1476 dual-core machines) and other potential thread-safety issues.
1479 Changes between 0.9.7i and 0.9.7j [04 May 2006]
1481 *) Adapt fipsld and the build system to link against the validated FIPS
1482 module in FIPS mode.
1485 *) Fixes for VC++ 2005 build under Windows.
1488 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
1489 from a Windows bash shell such as MSYS. It is autodetected from the
1490 "config" script when run from a VC++ environment. Modify standard VC++
1491 build to use fipscanister.o from the GNU make build.
1494 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
1496 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
1497 The value now differs depending on if you build for FIPS or not.
1498 BEWARE! A program linked with a shared FIPSed libcrypto can't be
1499 safely run with a non-FIPSed libcrypto, as it may crash because of
1500 the difference induced by this change.
1503 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
1505 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1506 (part of SSL_OP_ALL). This option used to disable the
1507 countermeasure against man-in-the-middle protocol-version
1508 rollback in the SSL 2.0 server implementation, which is a bad
1509 idea. (CVE-2005-2969)
1511 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1512 for Information Security, National Institute of Advanced Industrial
1513 Science and Technology [AIST], Japan)]
1515 *) Minimal support for X9.31 signatures and PSS padding modes. This is
1516 mainly for FIPS compliance and not fully integrated at this stage.
1519 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
1520 the exponentiation using a fixed-length exponent. (Otherwise,
1521 the information leaked through timing could expose the secret key
1522 after many signatures; cf. Bleichenbacher's attack on DSA with
1526 *) Make a new fixed-window mod_exp implementation the default for
1527 RSA, DSA, and DH private-key operations so that the sequence of
1528 squares and multiplies and the memory access pattern are
1529 independent of the particular secret key. This will mitigate
1530 cache-timing and potential related attacks.
1532 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
1533 and this is automatically used by BN_mod_exp_mont() if the new flag
1534 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
1535 will use this BN flag for private exponents unless the flag
1536 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
1537 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
1539 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
1541 *) Change the client implementation for SSLv23_method() and
1542 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
1543 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
1544 (Previously, the SSL 2.0 backwards compatible Client Hello
1545 message format would be used even with SSL_OP_NO_SSLv2.)
1548 *) Add support for smime-type MIME parameter in S/MIME messages which some
1552 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
1553 a threadsafe manner. Modify rsa code to use new function and add calls
1554 to dsa and dh code (which had race conditions before).
1557 *) Include the fixed error library code in the C error file definitions
1558 instead of fixing them up at runtime. This keeps the error code
1559 structures constant.
1562 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
1564 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
1567 *) Fixes for newer kerberos headers. NB: the casts are needed because
1568 the 'length' field is signed on one version and unsigned on another
1569 with no (?) obvious way to tell the difference, without these VC++
1570 complains. Also the "definition" of FAR (blank) is no longer included
1571 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
1572 some needed definitions.
1575 *) Undo Cygwin change.
1578 *) Added support for proxy certificates according to RFC 3820.
1579 Because they may be a security thread to unaware applications,
1580 they must be explicitely allowed in run-time. See
1581 docs/HOWTO/proxy_certificates.txt for further information.
1584 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
1586 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
1587 server and client random values. Previously
1588 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
1589 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
1591 This change has negligible security impact because:
1593 1. Server and client random values still have 24 bytes of pseudo random
1596 2. Server and client random values are sent in the clear in the initial
1599 3. The master secret is derived using the premaster secret (48 bytes in
1600 size for static RSA ciphersuites) as well as client server and random
1603 The OpenSSL team would like to thank the UK NISCC for bringing this issue
1606 [Stephen Henson, reported by UK NISCC]
1608 *) Use Windows randomness collection on Cygwin.
1611 *) Fix hang in EGD/PRNGD query when communication socket is closed
1612 prematurely by EGD/PRNGD.
1613 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
1615 *) Prompt for pass phrases when appropriate for PKCS12 input format.
1618 *) Back-port of selected performance improvements from development
1619 branch, as well as improved support for PowerPC platforms.
1622 *) Add lots of checks for memory allocation failure, error codes to indicate
1623 failure and freeing up memory if a failure occurs.
1624 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
1626 *) Add new -passin argument to dgst.
1629 *) Perform some character comparisons of different types in X509_NAME_cmp:
1630 this is needed for some certificates that reencode DNs into UTF8Strings
1631 (in violation of RFC3280) and can't or wont issue name rollover
1635 *) Make an explicit check during certificate validation to see that
1636 the CA setting in each certificate on the chain is correct. As a
1637 side effect always do the following basic checks on extensions,
1638 not just when there's an associated purpose to the check:
1640 - if there is an unhandled critical extension (unless the user
1641 has chosen to ignore this fault)
1642 - if the path length has been exceeded (if one is set at all)
1643 - that certain extensions fit the associated purpose (if one has
1647 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
1649 *) Avoid a race condition when CRLs are checked in a multi threaded
1650 environment. This would happen due to the reordering of the revoked
1651 entries during signature checking and serial number lookup. Now the
1652 encoding is cached and the serial number sort performed under a lock.
1653 Add new STACK function sk_is_sorted().
1656 *) Add Delta CRL to the extension code.
1659 *) Various fixes to s3_pkt.c so alerts are sent properly.
1660 [David Holmes <d.holmes@f5.com>]
1662 *) Reduce the chances of duplicate issuer name and serial numbers (in
1663 violation of RFC3280) using the OpenSSL certificate creation utilities.
1664 This is done by creating a random 64 bit value for the initial serial
1665 number when a serial number file is created or when a self signed
1666 certificate is created using 'openssl req -x509'. The initial serial
1667 number file is created using 'openssl x509 -next_serial' in CA.pl
1668 rather than being initialized to 1.
1671 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
1673 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
1674 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
1675 [Joe Orton, Steve Henson]
1677 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
1679 [Joe Orton, Steve Henson]
1681 *) Make it possible to have multiple active certificates with the same
1682 subject in the CA index file. This is done only if the keyword
1683 'unique_subject' is set to 'no' in the main CA section (default
1684 if 'CA_default') of the configuration file. The value is saved
1685 with the database itself in a separate index attribute file,
1686 named like the index file with '.attr' appended to the name.
1689 *) X509 verify fixes. Disable broken certificate workarounds when
1690 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
1691 keyUsage extension present. Don't accept CRLs with unhandled critical
1692 extensions: since verify currently doesn't process CRL extensions this
1693 rejects a CRL with *any* critical extensions. Add new verify error codes
1697 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
1698 A clarification of RFC2560 will require the use of OCTET STRINGs and
1699 some implementations cannot handle the current raw format. Since OpenSSL
1700 copies and compares OCSP nonces as opaque blobs without any attempt at
1701 parsing them this should not create any compatibility issues.
1704 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
1705 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
1706 this HMAC (and other) operations are several times slower than OpenSSL
1710 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
1711 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1713 *) Use the correct content when signing type "other".
1716 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
1718 *) Fix various bugs revealed by running the NISCC test suite:
1720 Stop out of bounds reads in the ASN1 code when presented with
1721 invalid tags (CVE-2003-0543 and CVE-2003-0544).
1723 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
1725 If verify callback ignores invalid public key errors don't try to check
1726 certificate signature with the NULL public key.
1730 *) New -ignore_err option in ocsp application to stop the server
1731 exiting on the first error in a request.
1734 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
1735 if the server requested one: as stated in TLS 1.0 and SSL 3.0
1739 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
1740 extra data after the compression methods not only for TLS 1.0
1741 but also for SSL 3.0 (as required by the specification).
1742 [Bodo Moeller; problem pointed out by Matthias Loepfe]
1744 *) Change X509_certificate_type() to mark the key as exported/exportable
1745 when it's 512 *bits* long, not 512 bytes.
1748 *) Change AES_cbc_encrypt() so it outputs exact multiple of
1749 blocks during encryption.
1752 *) Various fixes to base64 BIO and non blocking I/O. On write
1753 flushes were not handled properly if the BIO retried. On read
1754 data was not being buffered properly and had various logic bugs.
1755 This also affects blocking I/O when the data being decoded is a
1759 *) Various S/MIME bugfixes and compatibility changes:
1760 output correct application/pkcs7 MIME type if
1761 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
1762 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
1763 of files as .eml work). Correctly handle very long lines in MIME
1767 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
1769 *) Countermeasure against the Klima-Pokorny-Rosa extension of
1770 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
1771 a protocol version number mismatch like a decryption error
1772 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
1775 *) Turn on RSA blinding by default in the default implementation
1776 to avoid a timing attack. Applications that don't want it can call
1777 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
1778 They would be ill-advised to do so in most cases.
1779 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
1781 *) Change RSA blinding code so that it works when the PRNG is not
1782 seeded (in this case, the secret RSA exponent is abused as
1783 an unpredictable seed -- if it is not unpredictable, there
1784 is no point in blinding anyway). Make RSA blinding thread-safe
1785 by remembering the creator's thread ID in rsa->blinding and
1786 having all other threads use local one-time blinding factors
1787 (this requires more computation than sharing rsa->blinding, but
1788 avoids excessive locking; and if an RSA object is not shared
1789 between threads, blinding will still be very fast).
1792 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
1793 ENGINE as defaults for all supported algorithms irrespective of
1794 the 'flags' parameter. 'flags' is now honoured, so applications
1795 should make sure they are passing it correctly.
1798 *) Target "mingw" now allows native Windows code to be generated in
1799 the Cygwin environment as well as with the MinGW compiler.
1802 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
1804 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
1805 via timing by performing a MAC computation even if incorrrect
1806 block cipher padding has been found. This is a countermeasure
1807 against active attacks where the attacker has to distinguish
1808 between bad padding and a MAC verification error. (CVE-2003-0078)
1810 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
1811 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
1812 Martin Vuagnoux (EPFL, Ilion)]
1814 *) Make the no-err option work as intended. The intention with no-err
1815 is not to have the whole error stack handling routines removed from
1816 libcrypto, it's only intended to remove all the function name and
1817 reason texts, thereby removing some of the footprint that may not
1818 be interesting if those errors aren't displayed anyway.
1820 NOTE: it's still possible for any application or module to have it's
1821 own set of error texts inserted. The routines are there, just not
1822 used by default when no-err is given.
1825 *) Add support for FreeBSD on IA64.
1826 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
1828 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
1829 Kerberos function mit_des_cbc_cksum(). Before this change,
1830 the value returned by DES_cbc_cksum() was like the one from
1831 mit_des_cbc_cksum(), except the bytes were swapped.
1832 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
1834 *) Allow an application to disable the automatic SSL chain building.
1835 Before this a rather primitive chain build was always performed in
1836 ssl3_output_cert_chain(): an application had no way to send the
1837 correct chain if the automatic operation produced an incorrect result.
1839 Now the chain builder is disabled if either:
1841 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
1843 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
1845 The reasoning behind this is that an application would not want the
1846 auto chain building to take place if extra chain certificates are
1847 present and it might also want a means of sending no additional
1848 certificates (for example the chain has two certificates and the
1852 *) Add the possibility to build without the ENGINE framework.
1853 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1855 *) Under Win32 gmtime() can return NULL: check return value in
1856 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
1859 *) DSA routines: under certain error conditions uninitialized BN objects
1860 could be freed. Solution: make sure initialization is performed early
1861 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
1862 Nils Larsch <nla@trustcenter.de> via PR#459)
1865 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
1866 checked on reconnect on the client side, therefore session resumption
1867 could still fail with a "ssl session id is different" error. This
1868 behaviour is masked when SSL_OP_ALL is used due to
1869 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
1870 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1871 followup to PR #377.
1874 *) IA-32 assembler support enhancements: unified ELF targets, support
1875 for SCO/Caldera platforms, fix for Cygwin shared build.
1878 *) Add support for FreeBSD on sparc64. As a consequence, support for
1879 FreeBSD on non-x86 processors is separate from x86 processors on
1880 the config script, much like the NetBSD support.
1881 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
1883 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
1885 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
1888 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
1889 code (06) was taken as the first octet of the session ID and the last
1890 octet was ignored consequently. As a result SSLv2 client side session
1891 caching could not have worked due to the session ID mismatch between
1893 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1897 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
1898 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
1902 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
1903 seems that in spite of existing for more than a year, many application
1904 author have done nothing to provide the necessary callbacks, which
1905 means that this particular engine will not work properly anywhere.
1906 This is a very unfortunate situation which forces us, in the name
1907 of usability, to give the hw_ncipher.c a static lock, which is part
1909 NOTE: This is for the 0.9.7 series ONLY. This hack will never
1910 appear in 0.9.8 or later. We EXPECT application authors to have
1911 dealt properly with this when 0.9.8 is released (unless we actually
1912 make such changes in the libcrypto locking code that changes will
1913 have to be made anyway).
1916 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
1917 octets have been read, EOF or an error occurs. Without this change
1918 some truncated ASN1 structures will not produce an error.
1921 *) Disable Heimdal support, since it hasn't been fully implemented.
1922 Still give the possibility to force the use of Heimdal, but with
1923 warnings and a request that patches get sent to openssl-dev.
1926 *) Add the VC-CE target, introduce the WINCE sysname, and add
1927 INSTALL.WCE and appropriate conditionals to make it build.
1928 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1930 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
1931 cygssl-x.y.z.dll, where x, y and z are the major, minor and
1932 edit numbers of the version.
1933 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
1935 *) Introduce safe string copy and catenation functions
1936 (BUF_strlcpy() and BUF_strlcat()).
1937 [Ben Laurie (CHATS) and Richard Levitte]
1939 *) Avoid using fixed-size buffers for one-line DNs.
1940 [Ben Laurie (CHATS)]
1942 *) Add BUF_MEM_grow_clean() to avoid information leakage when
1943 resizing buffers containing secrets, and use where appropriate.
1944 [Ben Laurie (CHATS)]
1946 *) Avoid using fixed size buffers for configuration file location.
1947 [Ben Laurie (CHATS)]
1949 *) Avoid filename truncation for various CA files.
1950 [Ben Laurie (CHATS)]
1952 *) Use sizeof in preference to magic numbers.
1953 [Ben Laurie (CHATS)]
1955 *) Avoid filename truncation in cert requests.
1956 [Ben Laurie (CHATS)]
1958 *) Add assertions to check for (supposedly impossible) buffer
1960 [Ben Laurie (CHATS)]
1962 *) Don't cache truncated DNS entries in the local cache (this could
1963 potentially lead to a spoofing attack).
1964 [Ben Laurie (CHATS)]
1966 *) Fix various buffers to be large enough for hex/decimal
1967 representations in a platform independent manner.
1968 [Ben Laurie (CHATS)]
1970 *) Add CRYPTO_realloc_clean() to avoid information leakage when
1971 resizing buffers containing secrets, and use where appropriate.
1972 [Ben Laurie (CHATS)]
1974 *) Add BIO_indent() to avoid much slightly worrying code to do
1976 [Ben Laurie (CHATS)]
1978 *) Convert sprintf()/BIO_puts() to BIO_printf().
1979 [Ben Laurie (CHATS)]
1981 *) buffer_gets() could terminate with the buffer only half
1983 [Ben Laurie (CHATS)]
1985 *) Add assertions to prevent user-supplied crypto functions from
1986 overflowing internal buffers by having large block sizes, etc.
1987 [Ben Laurie (CHATS)]
1989 *) New OPENSSL_assert() macro (similar to assert(), but enabled
1991 [Ben Laurie (CHATS)]
1993 *) Eliminate unused copy of key in RC4.
1994 [Ben Laurie (CHATS)]
1996 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
1997 [Ben Laurie (CHATS)]
1999 *) Fix off-by-one error in EGD path.
2000 [Ben Laurie (CHATS)]
2002 *) If RANDFILE path is too long, ignore instead of truncating.
2003 [Ben Laurie (CHATS)]
2005 *) Eliminate unused and incorrectly sized X.509 structure
2007 [Ben Laurie (CHATS)]
2009 *) Eliminate unused and dangerous function knumber().
2010 [Ben Laurie (CHATS)]
2012 *) Eliminate unused and dangerous structure, KSSL_ERR.
2013 [Ben Laurie (CHATS)]
2015 *) Protect against overlong session ID context length in an encoded
2016 session object. Since these are local, this does not appear to be
2018 [Ben Laurie (CHATS)]
2020 *) Change from security patch (see 0.9.6e below) that did not affect
2021 the 0.9.6 release series:
2023 Remote buffer overflow in SSL3 protocol - an attacker could
2024 supply an oversized master key in Kerberos-enabled versions.
2026 [Ben Laurie (CHATS)]
2028 *) Change the SSL kerb5 codes to match RFC 2712.
2031 *) Make -nameopt work fully for req and add -reqopt switch.
2032 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
2034 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
2035 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
2037 *) Make sure tests can be performed even if the corresponding algorithms
2038 have been removed entirely. This was also the last step to make
2039 OpenSSL compilable with DJGPP under all reasonable conditions.
2040 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
2042 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
2043 to allow version independent disabling of normally unselected ciphers,
2044 which may be activated as a side-effect of selecting a single cipher.
2046 (E.g., cipher list string "RSA" enables ciphersuites that are left
2047 out of "ALL" because they do not provide symmetric encryption.
2048 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
2049 [Lutz Jaenicke, Bodo Moeller]
2051 *) Add appropriate support for separate platform-dependent build
2052 directories. The recommended way to make a platform-dependent
2053 build directory is the following (tested on Linux), maybe with
2056 # Place yourself outside of the OpenSSL source tree. In
2057 # this example, the environment variable OPENSSL_SOURCE
2058 # is assumed to contain the absolute OpenSSL source directory.
2059 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
2060 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
2061 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
2062 mkdir -p `dirname $F`
2063 ln -s $OPENSSL_SOURCE/$F $F
2066 To be absolutely sure not to disturb the source tree, a "make clean"
2067 is a good thing. If it isn't successfull, don't worry about it,
2068 it probably means the source directory is very clean.
2071 *) Make sure any ENGINE control commands make local copies of string
2072 pointers passed to them whenever necessary. Otherwise it is possible
2073 the caller may have overwritten (or deallocated) the original string
2074 data when a later ENGINE operation tries to use the stored values.
2075 [Götz Babin-Ebell <babinebell@trustcenter.de>]
2077 *) Improve diagnostics in file reading and command-line digests.
2078 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
2080 *) Add AES modes CFB and OFB to the object database. Correct an
2081 error in AES-CFB decryption.
2084 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
2085 allows existing EVP_CIPHER_CTX structures to be reused after
2086 calling EVP_*Final(). This behaviour is used by encryption
2087 BIOs and some applications. This has the side effect that
2088 applications must explicitly clean up cipher contexts with
2089 EVP_CIPHER_CTX_cleanup() or they will leak memory.
2092 *) Check the values of dna and dnb in bn_mul_recursive before calling
2093 bn_mul_comba (a non zero value means the a or b arrays do not contain
2094 n2 elements) and fallback to bn_mul_normal if either is not zero.
2097 *) Fix escaping of non-ASCII characters when using the -subj option
2098 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
2101 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
2102 form for "surname", serialNumber has no short form.
2103 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
2104 therefore remove "mail" short name for "internet 7".
2105 The OID for unique identifiers in X509 certificates is
2106 x500UniqueIdentifier, not uniqueIdentifier.
2107 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
2110 *) Add an "init" command to the ENGINE config module and auto initialize
2111 ENGINEs. Without any "init" command the ENGINE will be initialized
2112 after all ctrl commands have been executed on it. If init=1 the
2113 ENGINE is initailized at that point (ctrls before that point are run
2114 on the uninitialized ENGINE and after on the initialized one). If
2115 init=0 then the ENGINE will not be iniatialized at all.
2118 *) Fix the 'app_verify_callback' interface so that the user-defined
2119 argument is actually passed to the callback: In the
2120 SSL_CTX_set_cert_verify_callback() prototype, the callback
2121 declaration has been changed from
2124 int (*cb)(X509_STORE_CTX *,void *);
2125 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
2126 i=s->ctx->app_verify_callback(&ctx)
2127 has been changed into
2128 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
2130 To update applications using SSL_CTX_set_cert_verify_callback(),
2131 a dummy argument can be added to their callback functions.
2132 [D. K. Smetters <smetters@parc.xerox.com>]
2134 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
2135 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
2137 *) Add and OPENSSL_LOAD_CONF define which will cause
2138 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
2139 This allows older applications to transparently support certain
2140 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
2141 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
2142 load the config file and OPENSSL_add_all_algorithms_conf() which will
2143 always load it have also been added.
2146 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
2147 Adjust NIDs and EVP layer.
2148 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2150 *) Config modules support in openssl utility.
2152 Most commands now load modules from the config file,
2153 though in a few (such as version) this isn't done
2154 because it couldn't be used for anything.
2156 In the case of ca and req the config file used is
2157 the same as the utility itself: that is the -config
2158 command line option can be used to specify an
2162 *) Move default behaviour from OPENSSL_config(). If appname is NULL
2163 use "openssl_conf" if filename is NULL use default openssl config file.
2166 *) Add an argument to OPENSSL_config() to allow the use of an alternative
2167 config section name. Add a new flag to tolerate a missing config file
2168 and move code to CONF_modules_load_file().
2171 *) Support for crypto accelerator cards from Accelerated Encryption
2172 Processing, www.aep.ie. (Use engine 'aep')
2173 The support was copied from 0.9.6c [engine] and adapted/corrected
2174 to work with the new engine framework.
2175 [AEP Inc. and Richard Levitte]
2177 *) Support for SureWare crypto accelerator cards from Baltimore
2178 Technologies. (Use engine 'sureware')
2179 The support was copied from 0.9.6c [engine] and adapted
2180 to work with the new engine framework.
2183 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
2184 make the newer ENGINE framework commands for the CHIL engine work.
2185 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
2187 *) Make it possible to produce shared libraries on ReliantUNIX.
2188 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
2190 *) Add the configuration target debug-linux-ppro.
2191 Make 'openssl rsa' use the general key loading routines
2192 implemented in apps.c, and make those routines able to
2193 handle the key format FORMAT_NETSCAPE and the variant
2195 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2197 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
2198 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2200 *) Add -keyform to rsautl, and document -engine.
2201 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
2203 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
2204 BIO_R_NO_SUCH_FILE error code rather than the generic
2205 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
2208 *) Add new functions
2210 ERR_peek_last_error_line
2211 ERR_peek_last_error_line_data.
2212 These are similar to
2215 ERR_peek_error_line_data,
2216 but report on the latest error recorded rather than the first one
2217 still in the error queue.
2218 [Ben Laurie, Bodo Moeller]
2220 *) default_algorithms option in ENGINE config module. This allows things
2222 default_algorithms = ALL
2223 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
2226 *) Prelminary ENGINE config module.
2229 *) New experimental application configuration code.
2232 *) Change the AES code to follow the same name structure as all other
2233 symmetric ciphers, and behave the same way. Move everything to
2234 the directory crypto/aes, thereby obsoleting crypto/rijndael.
2235 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2237 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
2238 [Ben Laurie and Theo de Raadt]
2240 *) Add option to output public keys in req command.
2241 [Massimiliano Pala madwolf@openca.org]
2243 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
2244 (up to about 10% better than before for P-192 and P-224).
2247 *) New functions/macros
2249 SSL_CTX_set_msg_callback(ctx, cb)
2250 SSL_CTX_set_msg_callback_arg(ctx, arg)
2251 SSL_set_msg_callback(ssl, cb)
2252 SSL_set_msg_callback_arg(ssl, arg)
2254 to request calling a callback function
2256 void cb(int write_p, int version, int content_type,
2257 const void *buf, size_t len, SSL *ssl, void *arg)
2259 whenever a protocol message has been completely received
2260 (write_p == 0) or sent (write_p == 1). Here 'version' is the
2261 protocol version according to which the SSL library interprets
2262 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
2263 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
2264 the content type as defined in the SSL 3.0/TLS 1.0 protocol
2265 specification (change_cipher_spec(20), alert(21), handshake(22)).
2266 'buf' and 'len' point to the actual message, 'ssl' to the
2267 SSL object, and 'arg' is the application-defined value set by
2268 SSL[_CTX]_set_msg_callback_arg().
2270 'openssl s_client' and 'openssl s_server' have new '-msg' options
2271 to enable a callback that displays all protocol messages.
2274 *) Change the shared library support so shared libraries are built as
2275 soon as the corresponding static library is finished, and thereby get
2276 openssl and the test programs linked against the shared library.
2277 This still only happens when the keyword "shard" has been given to
2278 the configuration scripts.
2280 NOTE: shared library support is still an experimental thing, and
2281 backward binary compatibility is still not guaranteed.
2282 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
2284 *) Add support for Subject Information Access extension.
2285 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2287 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
2288 additional bytes when new memory had to be allocated, not just
2289 when reusing an existing buffer.
2292 *) New command line and configuration option 'utf8' for the req command.
2293 This allows field values to be specified as UTF8 strings.
2296 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
2297 runs for the former and machine-readable output for the latter.
2300 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
2301 of the e-mail address in the DN (i.e., it will go into a certificate
2302 extension only). The new configuration file option 'email_in_dn = no'
2303 has the same effect.
2304 [Massimiliano Pala madwolf@openca.org]
2306 *) Change all functions with names starting with des_ to be starting
2307 with DES_ instead. Add wrappers that are compatible with libdes,
2308 but are named _ossl_old_des_*. Finally, add macros that map the
2309 des_* symbols to the corresponding _ossl_old_des_* if libdes
2310 compatibility is desired. If OpenSSL 0.9.6c compatibility is
2311 desired, the des_* symbols will be mapped to DES_*, with one
2314 Since we provide two compatibility mappings, the user needs to
2315 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
2316 compatibility is desired. The default (i.e., when that macro
2317 isn't defined) is OpenSSL 0.9.6c compatibility.
2319 There are also macros that enable and disable the support of old
2320 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
2321 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
2322 are defined, the default will apply: to support the old des routines.
2324 In either case, one must include openssl/des.h to get the correct
2325 definitions. Do not try to just include openssl/des_old.h, that
2328 NOTE: This is a major break of an old API into a new one. Software
2329 authors are encouraged to switch to the DES_ style functions. Some
2330 time in the future, des_old.h and the libdes compatibility functions
2331 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
2332 default), and then completely removed.
2335 *) Test for certificates which contain unsupported critical extensions.
2336 If such a certificate is found during a verify operation it is
2337 rejected by default: this behaviour can be overridden by either
2338 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
2339 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
2340 X509_supported_extension() has also been added which returns 1 if a
2341 particular extension is supported.
2344 *) Modify the behaviour of EVP cipher functions in similar way to digests
2345 to retain compatibility with existing code.
2348 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
2349 compatibility with existing code. In particular the 'ctx' parameter does
2350 not have to be to be initialized before the call to EVP_DigestInit() and
2351 it is tidied up after a call to EVP_DigestFinal(). New function
2352 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
2353 EVP_MD_CTX_copy() changed to not require the destination to be
2354 initialized valid and new function EVP_MD_CTX_copy_ex() added which
2355 requires the destination to be valid.
2357 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
2358 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
2361 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
2362 so that complete 'Handshake' protocol structures are kept in memory
2363 instead of overwriting 'msg_type' and 'length' with 'body' data.
2366 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
2367 [Massimo Santin via Richard Levitte]
2369 *) Major restructuring to the underlying ENGINE code. This includes
2370 reduction of linker bloat, separation of pure "ENGINE" manipulation
2371 (initialisation, etc) from functionality dealing with implementations
2372 of specific crypto iterfaces. This change also introduces integrated
2373 support for symmetric ciphers and digest implementations - so ENGINEs
2374 can now accelerate these by providing EVP_CIPHER and EVP_MD
2375 implementations of their own. This is detailed in crypto/engine/README
2376 as it couldn't be adequately described here. However, there are a few
2377 API changes worth noting - some RSA, DSA, DH, and RAND functions that
2378 were changed in the original introduction of ENGINE code have now
2379 reverted back - the hooking from this code to ENGINE is now a good
2380 deal more passive and at run-time, operations deal directly with
2381 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
2382 dereferencing through an ENGINE pointer any more. Also, the ENGINE
2383 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
2384 they were not being used by the framework as there is no concept of a
2385 BIGNUM_METHOD and they could not be generalised to the new
2386 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
2387 ENGINE_cpy() has been removed as it cannot be consistently defined in
2391 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
2394 *) Change mkdef.pl to sort symbols that get the same entry number,
2395 and make sure the automatically generated functions ERR_load_*
2396 become part of libeay.num as well.
2399 *) New function SSL_renegotiate_pending(). This returns true once
2400 renegotiation has been requested (either SSL_renegotiate() call
2401 or HelloRequest/ClientHello receveived from the peer) and becomes
2402 false once a handshake has been completed.
2403 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
2404 sends a HelloRequest, but does not ensure that a handshake takes
2405 place. SSL_renegotiate_pending() is useful for checking if the
2406 client has followed the request.)
2409 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
2410 By default, clients may request session resumption even during
2411 renegotiation (if session ID contexts permit); with this option,
2412 session resumption is possible only in the first handshake.
2414 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
2415 more bits available for options that should not be part of
2416 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
2419 *) Add some demos for certificate and certificate request creation.
2422 *) Make maximum certificate chain size accepted from the peer application
2423 settable (SSL*_get/set_max_cert_list()), as proposed by
2424 "Douglas E. Engert" <deengert@anl.gov>.
2427 *) Add support for shared libraries for Unixware-7
2428 (Boyd Lynn Gerber <gerberb@zenez.com>).
2431 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
2432 be done prior to destruction. Use this to unload error strings from
2433 ENGINEs that load their own error strings. NB: This adds two new API
2434 functions to "get" and "set" this destroy handler in an ENGINE.
2437 *) Alter all existing ENGINE implementations (except "openssl" and
2438 "openbsd") to dynamically instantiate their own error strings. This
2439 makes them more flexible to be built both as statically-linked ENGINEs
2440 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
2441 Also, add stub code to each that makes building them as self-contained
2442 shared-libraries easier (see README.ENGINE).
2445 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
2446 implementations into applications that are completely implemented in
2447 self-contained shared-libraries. The "dynamic" ENGINE exposes control
2448 commands that can be used to configure what shared-library to load and
2449 to control aspects of the way it is handled. Also, made an update to
2450 the README.ENGINE file that brings its information up-to-date and
2451 provides some information and instructions on the "dynamic" ENGINE
2452 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
2455 *) Make it possible to unload ranges of ERR strings with a new
2456 "ERR_unload_strings" function.
2459 *) Add a copy() function to EVP_MD.
2462 *) Make EVP_MD routines take a context pointer instead of just the
2463 md_data void pointer.
2466 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
2467 that the digest can only process a single chunk of data
2468 (typically because it is provided by a piece of
2469 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
2470 is only going to provide a single chunk of data, and hence the
2471 framework needn't accumulate the data for oneshot drivers.
2474 *) As with "ERR", make it possible to replace the underlying "ex_data"
2475 functions. This change also alters the storage and management of global
2476 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
2477 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
2478 index counters. The API functions that use this state have been changed
2479 to take a "class_index" rather than pointers to the class's local STACK
2480 and counter, and there is now an API function to dynamically create new
2481 classes. This centralisation allows us to (a) plug a lot of the
2482 thread-safety problems that existed, and (b) makes it possible to clean
2483 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
2484 such data would previously have always leaked in application code and
2485 workarounds were in place to make the memory debugging turn a blind eye
2486 to it. Application code that doesn't use this new function will still
2487 leak as before, but their memory debugging output will announce it now
2488 rather than letting it slide.
2490 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
2491 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
2492 has a return value to indicate success or failure.
2495 *) Make it possible to replace the underlying "ERR" functions such that the
2496 global state (2 LHASH tables and 2 locks) is only used by the "default"
2497 implementation. This change also adds two functions to "get" and "set"
2498 the implementation prior to it being automatically set the first time
2499 any other ERR function takes place. Ie. an application can call "get",
2500 pass the return value to a module it has just loaded, and that module
2501 can call its own "set" function using that value. This means the
2502 module's "ERR" operations will use (and modify) the error state in the
2503 application and not in its own statically linked copy of OpenSSL code.
2506 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
2507 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
2508 the operation, and provides a more encapsulated way for external code
2509 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
2510 to use these functions rather than manually incrementing the counts.
2512 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
2515 *) Add EVP test program.
2518 *) Add symmetric cipher support to ENGINE. Expect the API to change!
2521 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
2522 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
2523 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
2524 These allow a CRL to be built without having to access X509_CRL fields
2525 directly. Modify 'ca' application to use new functions.
2528 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
2529 bug workarounds. Rollback attack detection is a security feature.
2530 The problem will only arise on OpenSSL servers when TLSv1 is not
2531 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
2532 Software authors not wanting to support TLSv1 will have special reasons
2533 for their choice and can explicitly enable this option.
2534 [Bodo Moeller, Lutz Jaenicke]
2536 *) Rationalise EVP so it can be extended: don't include a union of
2537 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
2538 (similar to those existing for EVP_CIPHER_CTX).
2543 EVP_MD_CTX_init(&md); /* new function call */
2544 EVP_DigestInit(&md, EVP_sha1());
2545 EVP_DigestUpdate(&md, in, len);
2546 EVP_DigestFinal(&md, out, NULL);
2547 EVP_MD_CTX_cleanup(&md); /* new function call */
2551 *) Make DES key schedule conform to the usual scheme, as well as
2552 correcting its structure. This means that calls to DES functions
2553 now have to pass a pointer to a des_key_schedule instead of a
2554 plain des_key_schedule (which was actually always a pointer
2557 des_key_schedule ks;
2559 des_set_key_checked(..., &ks);
2560 des_ncbc_encrypt(..., &ks, ...);
2562 (Note that a later change renames 'des_...' into 'DES_...'.)
2565 *) Initial reduction of linker bloat: the use of some functions, such as
2566 PEM causes large amounts of unused functions to be linked in due to
2567 poor organisation. For example pem_all.c contains every PEM function
2568 which has a knock on effect of linking in large amounts of (unused)
2569 ASN1 code. Grouping together similar functions and splitting unrelated
2570 functions prevents this.
2573 *) Cleanup of EVP macros.
2576 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
2577 correct _ecb suffix.
2580 *) Add initial OCSP responder support to ocsp application. The
2581 revocation information is handled using the text based index
2582 use by the ca application. The responder can either handle
2583 requests generated internally, supplied in files (for example
2584 via a CGI script) or using an internal minimal server.
2587 *) Add configuration choices to get zlib compression for TLS.
2590 *) Changes to Kerberos SSL for RFC 2712 compliance:
2591 1. Implemented real KerberosWrapper, instead of just using
2592 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
2593 2. Implemented optional authenticator field of KerberosWrapper.
2595 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
2596 and authenticator structs; see crypto/krb5/.
2598 Generalized Kerberos calls to support multiple Kerberos libraries.
2599 [Vern Staats <staatsvr@asc.hpc.mil>,
2600 Jeffrey Altman <jaltman@columbia.edu>
2601 via Richard Levitte]
2603 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
2604 already does with RSA. testdsa.h now has 'priv_key/pub_key'
2605 values for each of the key sizes rather than having just
2606 parameters (and 'speed' generating keys each time).
2609 *) Speed up EVP routines.
2612 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
2613 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
2614 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
2615 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
2617 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
2618 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
2619 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
2622 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
2624 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
2627 *) Added the OS2-EMX target.
2628 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
2630 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
2631 to support NCONF routines in extension code. New function CONF_set_nconf()
2632 to allow functions which take an NCONF to also handle the old LHASH
2633 structure: this means that the old CONF compatible routines can be
2634 retained (in particular wrt extensions) without having to duplicate the
2635 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
2638 *) Enhance the general user interface with mechanisms for inner control
2639 and with possibilities to have yes/no kind of prompts.
2642 *) Change all calls to low level digest routines in the library and
2643 applications to use EVP. Add missing calls to HMAC_cleanup() and
2644 don't assume HMAC_CTX can be copied using memcpy().
2645 [Verdon Walker <VWalker@novell.com>, Steve Henson]
2647 *) Add the possibility to control engines through control names but with
2648 arbitrary arguments instead of just a string.
2649 Change the key loaders to take a UI_METHOD instead of a callback
2650 function pointer. NOTE: this breaks binary compatibility with earlier
2651 versions of OpenSSL [engine].
2652 Adapt the nCipher code for these new conditions and add a card insertion
2656 *) Enhance the general user interface with mechanisms to better support
2657 dialog box interfaces, application-defined prompts, the possibility
2658 to use defaults (for example default passwords from somewhere else)
2659 and interrupts/cancellations.
2662 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
2663 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
2666 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
2667 tidy up some unnecessarily weird code in 'sk_new()').
2668 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
2670 *) Change the key loading routines for ENGINEs to use the same kind
2671 callback (pem_password_cb) as all other routines that need this
2675 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
2676 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
2677 than this minimum value is recommended.
2680 *) New random seeder for OpenVMS, using the system process statistics
2681 that are easily reachable.
2684 *) Windows apparently can't transparently handle global
2685 variables defined in DLLs. Initialisations such as:
2687 const ASN1_ITEM *it = &ASN1_INTEGER_it;
2689 wont compile. This is used by the any applications that need to
2690 declare their own ASN1 modules. This was fixed by adding the option
2691 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
2692 needed for static libraries under Win32.
2695 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
2696 setting of purpose and trust fields. New X509_STORE trust and
2697 purpose functions and tidy up setting in other SSL functions.
2700 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
2701 structure. These are inherited by X509_STORE_CTX when it is
2702 initialised. This allows various defaults to be set in the
2703 X509_STORE structure (such as flags for CRL checking and custom
2704 purpose or trust settings) for functions which only use X509_STORE_CTX
2705 internally such as S/MIME.
2707 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
2708 trust settings if they are not set in X509_STORE. This allows X509_STORE
2709 purposes and trust (in S/MIME for example) to override any set by default.
2711 Add command line options for CRL checking to smime, s_client and s_server
2715 *) Initial CRL based revocation checking. If the CRL checking flag(s)
2716 are set then the CRL is looked up in the X509_STORE structure and
2717 its validity and signature checked, then if the certificate is found
2718 in the CRL the verify fails with a revoked error.
2720 Various new CRL related callbacks added to X509_STORE_CTX structure.
2722 Command line options added to 'verify' application to support this.
2724 This needs some additional work, such as being able to handle multiple
2725 CRLs with different times, extension based lookup (rather than just
2726 by subject name) and ultimately more complete V2 CRL extension
2730 *) Add a general user interface API (crypto/ui/). This is designed
2731 to replace things like des_read_password and friends (backward
2732 compatibility functions using this new API are provided).
2733 The purpose is to remove prompting functions from the DES code
2734 section as well as provide for prompting through dialog boxes in
2735 a window system and the like.
2738 *) Add "ex_data" support to ENGINE so implementations can add state at a
2739 per-structure level rather than having to store it globally.
2742 *) Make it possible for ENGINE structures to be copied when retrieved by
2743 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
2744 This causes the "original" ENGINE structure to act like a template,
2745 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
2746 operational state can be localised to each ENGINE structure, despite the
2747 fact they all share the same "methods". New ENGINE structures returned in
2748 this case have no functional references and the return value is the single
2749 structural reference. This matches the single structural reference returned
2750 by ENGINE_by_id() normally, when it is incremented on the pre-existing
2754 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
2755 needs to match any other type at all we need to manually clear the
2759 *) Changes to the "openssl engine" utility to include;
2760 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
2761 about an ENGINE's available control commands.
2762 - executing control commands from command line arguments using the
2763 '-pre' and '-post' switches. '-post' is only used if '-t' is
2764 specified and the ENGINE is successfully initialised. The syntax for
2765 the individual commands are colon-separated, for example;
2766 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
2769 *) New dynamic control command support for ENGINEs. ENGINEs can now
2770 declare their own commands (numbers), names (strings), descriptions,
2771 and input types for run-time discovery by calling applications. A
2772 subset of these commands are implicitly classed as "executable"
2773 depending on their input type, and only these can be invoked through
2774 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
2775 can be based on user input, config files, etc). The distinction is
2776 that "executable" commands cannot return anything other than a boolean
2777 result and can only support numeric or string input, whereas some
2778 discoverable commands may only be for direct use through
2779 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
2780 pointers, or other custom uses. The "executable" commands are to
2781 support parameterisations of ENGINE behaviour that can be
2782 unambiguously defined by ENGINEs and used consistently across any
2783 OpenSSL-based application. Commands have been added to all the
2784 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
2785 control over shared-library paths without source code alterations.
2788 *) Changed all ENGINE implementations to dynamically allocate their
2789 ENGINEs rather than declaring them statically. Apart from this being
2790 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
2791 this also allows the implementations to compile without using the
2792 internal engine_int.h header.
2795 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
2796 'const' value. Any code that should be able to modify a RAND_METHOD
2797 should already have non-const pointers to it (ie. they should only
2798 modify their own ones).
2801 *) Made a variety of little tweaks to the ENGINE code.
2802 - "atalla" and "ubsec" string definitions were moved from header files
2803 to C code. "nuron" string definitions were placed in variables
2804 rather than hard-coded - allowing parameterisation of these values
2805 later on via ctrl() commands.
2806 - Removed unused "#if 0"'d code.
2807 - Fixed engine list iteration code so it uses ENGINE_free() to release
2808 structural references.
2809 - Constified the RAND_METHOD element of ENGINE structures.
2810 - Constified various get/set functions as appropriate and added
2811 missing functions (including a catch-all ENGINE_cpy that duplicates
2812 all ENGINE values onto a new ENGINE except reference counts/state).
2813 - Removed NULL parameter checks in get/set functions. Setting a method
2814 or function to NULL is a way of cancelling out a previously set
2815 value. Passing a NULL ENGINE parameter is just plain stupid anyway
2816 and doesn't justify the extra error symbols and code.
2817 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
2818 flags from engine_int.h to engine.h.
2819 - Changed prototypes for ENGINE handler functions (init(), finish(),
2820 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
2823 *) Implement binary inversion algorithm for BN_mod_inverse in addition
2824 to the algorithm using long division. The binary algorithm can be
2825 used only if the modulus is odd. On 32-bit systems, it is faster
2826 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
2827 roughly 5-15% for 256-bit moduli), so we use it only for moduli
2828 up to 450 bits. In 64-bit environments, the binary algorithm
2829 appears to be advantageous for much longer moduli; here we use it
2830 for moduli up to 2048 bits.
2833 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
2834 could not support the combine flag in choice fields.
2837 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
2838 extensions from a certificate request to the certificate.
2841 *) Allow multiple 'certopt' and 'nameopt' options to be separated
2842 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
2843 file: this allows the display of the certificate about to be
2844 signed to be customised, to allow certain fields to be included
2845 or excluded and extension details. The old system didn't display
2846 multicharacter strings properly, omitted fields not in the policy
2847 and couldn't display additional details such as extensions.
2850 *) Function EC_POINTs_mul for multiple scalar multiplication
2851 of an arbitrary number of elliptic curve points
2852 \sum scalars[i]*points[i],
2853 optionally including the generator defined for the EC_GROUP:
2854 scalar*generator + \sum scalars[i]*points[i].
2856 EC_POINT_mul is a simple wrapper function for the typical case
2857 that the point list has just one item (besides the optional
2861 *) First EC_METHODs for curves over GF(p):
2863 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
2864 operations and provides various method functions that can also
2865 operate with faster implementations of modular arithmetic.
2867 EC_GFp_mont_method() reuses most functions that are part of
2868 EC_GFp_simple_method, but uses Montgomery arithmetic.
2870 [Bodo Moeller; point addition and point doubling
2871 implementation directly derived from source code provided by
2872 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
2874 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
2875 crypto/ec/ec_lib.c):
2877 Curves are EC_GROUP objects (with an optional group generator)
2878 based on EC_METHODs that are built into the library.
2880 Points are EC_POINT objects based on EC_GROUP objects.
2882 Most of the framework would be able to handle curves over arbitrary
2883 finite fields, but as there are no obvious types for fields other
2884 than GF(p), some functions are limited to that for now.
2887 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
2888 that the file contains a complete HTTP response.
2891 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
2892 change the def and num file printf format specifier from "%-40sXXX"
2893 to "%-39s XXX". The latter will always guarantee a space after the
2894 field while the former will cause them to run together if the field
2895 is 40 of more characters long.
2898 *) Constify the cipher and digest 'method' functions and structures
2899 and modify related functions to take constant EVP_MD and EVP_CIPHER
2903 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
2904 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
2907 *) Modify EVP_Digest*() routines so they now return values. Although the
2908 internal software routines can never fail additional hardware versions
2912 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
2914 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
2915 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
2918 ERR_R_NESTED_ASN1_ERROR
2920 ERR_R_MISSING_ASN1_EOS
2921 were 4 .. 9, conflicting with
2922 ERR_LIB_RSA (= ERR_R_RSA_LIB)
2924 ERR_LIB_PEM (= ERR_R_PEM_LIB).
2925 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
2927 Add new error code 'ERR_R_INTERNAL_ERROR'.
2930 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
2934 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
2935 sets the subject name for a new request or supersedes the
2936 subject name in a given request. Formats that can be parsed are
2937 'CN=Some Name, OU=myOU, C=IT'
2939 'CN=Some Name/OU=myOU/C=IT'.
2941 Add options '-batch' and '-verbose' to 'openssl req'.
2942 [Massimiliano Pala <madwolf@hackmasters.net>]
2944 *) Introduce the possibility to access global variables through
2945 functions on platform were that's the best way to handle exporting
2946 global variables in shared libraries. To enable this functionality,
2947 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
2948 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
2949 is normally done by Configure or something similar).
2951 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
2952 in the source file (foo.c) like this:
2954 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
2955 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
2957 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
2958 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
2960 OPENSSL_DECLARE_GLOBAL(int,foo);
2961 #define foo OPENSSL_GLOBAL_REF(foo)
2962 OPENSSL_DECLARE_GLOBAL(double,bar);
2963 #define bar OPENSSL_GLOBAL_REF(bar)
2965 The #defines are very important, and therefore so is including the
2966 header file everywhere where the defined globals are used.
2968 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
2969 of ASN.1 items, but that structure is a bit different.
2971 The largest change is in util/mkdef.pl which has been enhanced with
2972 better and easier to understand logic to choose which symbols should
2973 go into the Windows .def files as well as a number of fixes and code
2974 cleanup (among others, algorithm keywords are now sorted
2975 lexicographically to avoid constant rewrites).
2978 *) In BN_div() keep a copy of the sign of 'num' before writing the
2979 result to 'rm' because if rm==num the value will be overwritten
2980 and produce the wrong result if 'num' is negative: this caused
2981 problems with BN_mod() and BN_nnmod().
2984 *) Function OCSP_request_verify(). This checks the signature on an
2985 OCSP request and verifies the signer certificate. The signer
2986 certificate is just checked for a generic purpose and OCSP request
2990 *) Add OCSP_check_validity() function to check the validity of OCSP
2991 responses. OCSP responses are prepared in real time and may only
2992 be a few seconds old. Simply checking that the current time lies
2993 between thisUpdate and nextUpdate max reject otherwise valid responses
2994 caused by either OCSP responder or client clock inaccuracy. Instead
2995 we allow thisUpdate and nextUpdate to fall within a certain period of
2996 the current time. The age of the response can also optionally be
2997 checked. Two new options -validity_period and -status_age added to
3001 *) If signature or public key algorithm is unrecognized print out its
3002 OID rather that just UNKNOWN.
3005 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
3006 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
3007 ID to be generated from the issuer certificate alone which can then be
3008 passed to OCSP_id_issuer_cmp().
3011 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
3012 ASN1 modules to export functions returning ASN1_ITEM pointers
3013 instead of the ASN1_ITEM structures themselves. This adds several
3014 new macros which allow the underlying ASN1 function/structure to
3015 be accessed transparently. As a result code should not use ASN1_ITEM
3016 references directly (such as &X509_it) but instead use the relevant
3017 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
3018 use of the new ASN1 code on platforms where exporting structures
3019 is problematical (for example in shared libraries) but exporting
3020 functions returning pointers to structures is not.
3023 *) Add support for overriding the generation of SSL/TLS session IDs.
3024 These callbacks can be registered either in an SSL_CTX or per SSL.
3025 The purpose of this is to allow applications to control, if they wish,
3026 the arbitrary values chosen for use as session IDs, particularly as it
3027 can be useful for session caching in multiple-server environments. A
3028 command-line switch for testing this (and any client code that wishes
3029 to use such a feature) has been added to "s_server".
3030 [Geoff Thorpe, Lutz Jaenicke]
3032 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
3033 of the form '#if defined(...) || defined(...) || ...' and
3034 '#if !defined(...) && !defined(...) && ...'. This also avoids
3035 the growing number of special cases it was previously handling.
3038 *) Make all configuration macros available for application by making
3039 sure they are available in opensslconf.h, by giving them names starting
3040 with "OPENSSL_" to avoid conflicts with other packages and by making
3041 sure e_os2.h will cover all platform-specific cases together with
3043 Additionally, it is now possible to define configuration/platform-
3044 specific names (called "system identities"). In the C code, these
3045 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
3046 macro with the name beginning with "OPENSSL_SYS_", which is determined
3047 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
3051 *) New option -set_serial to 'req' and 'x509' this allows the serial
3052 number to use to be specified on the command line. Previously self
3053 signed certificates were hard coded with serial number 0 and the
3054 CA options of 'x509' had to use a serial number in a file which was
3058 *) New options to 'ca' utility to support V2 CRL entry extensions.
3059 Currently CRL reason, invalidity date and hold instruction are
3060 supported. Add new CRL extensions to V3 code and some new objects.
3063 *) New function EVP_CIPHER_CTX_set_padding() this is used to
3064 disable standard block padding (aka PKCS#5 padding) in the EVP
3065 API, which was previously mandatory. This means that the data is
3066 not padded in any way and so the total length much be a multiple
3067 of the block size, otherwise an error occurs.
3070 *) Initial (incomplete) OCSP SSL support.
3073 *) New function OCSP_parse_url(). This splits up a URL into its host,
3074 port and path components: primarily to parse OCSP URLs. New -url
3075 option to ocsp utility.
3078 *) New nonce behavior. The return value of OCSP_check_nonce() now
3079 reflects the various checks performed. Applications can decide
3080 whether to tolerate certain situations such as an absent nonce
3081 in a response when one was present in a request: the ocsp application
3082 just prints out a warning. New function OCSP_add1_basic_nonce()
3083 this is to allow responders to include a nonce in a response even if
3084 the request is nonce-less.
3087 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
3088 skipped when using openssl x509 multiple times on a single input file,
3089 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
3092 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
3093 set string type: to handle setting ASN1_TIME structures. Fix ca
3094 utility to correctly initialize revocation date of CRLs.
3097 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
3098 the clients preferred ciphersuites and rather use its own preferences.
3099 Should help to work around M$ SGC (Server Gated Cryptography) bug in
3100 Internet Explorer by ensuring unchanged hash method during stepup.
3101 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
3104 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
3105 to aes and add a new 'exist' option to print out symbols that don't
3109 *) Additional options to ocsp utility to allow flags to be set and
3110 additional certificates supplied.
3113 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
3114 OCSP client a number of certificate to only verify the response
3118 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
3119 handle the new API. Currently only ECB, CBC modes supported. Add new
3122 Add TLS AES ciphersuites as described in RFC3268, "Advanced
3123 Encryption Standard (AES) Ciphersuites for Transport Layer
3124 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
3125 not enabled by default and were not part of the "ALL" ciphersuite
3126 alias because they were not yet official; they could be
3127 explicitly requested by specifying the "AESdraft" ciphersuite
3128 group alias. In the final release of OpenSSL 0.9.7, the group
3129 alias is called "AES" and is part of "ALL".)
3130 [Ben Laurie, Steve Henson, Bodo Moeller]
3132 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
3133 request to response.
3136 *) Functions for OCSP responders. OCSP_request_onereq_count(),
3137 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
3138 extract information from a certificate request. OCSP_response_create()
3139 creates a response and optionally adds a basic response structure.
3140 OCSP_basic_add1_status() adds a complete single response to a basic
3141 response and returns the OCSP_SINGLERESP structure just added (to allow
3142 extensions to be included for example). OCSP_basic_add1_cert() adds a
3143 certificate to a basic response and OCSP_basic_sign() signs a basic
3144 response with various flags. New helper functions ASN1_TIME_check()
3145 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
3146 (converts ASN1_TIME to GeneralizedTime).
3149 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
3150 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
3151 structure from a certificate. X509_pubkey_digest() digests the public_key
3152 contents: this is used in various key identifiers.
3155 *) Make sk_sort() tolerate a NULL argument.
3156 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
3158 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
3159 passed by the function are trusted implicitly. If any of them signed the
3160 response then it is assumed to be valid and is not verified.
3163 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
3164 to data. This was previously part of the PKCS7 ASN1 code. This
3165 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
3166 [Steve Henson, reported by Kenneth R. Robinette
3167 <support@securenetterm.com>]
3169 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
3170 routines: without these tracing memory leaks is very painful.
3171 Fix leaks in PKCS12 and PKCS7 routines.
3174 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
3175 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
3176 effectively meant GeneralizedTime would never be used. Now it
3177 is initialised to -1 but X509_time_adj() now has to check the value
3178 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
3179 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
3180 [Steve Henson, reported by Kenneth R. Robinette
3181 <support@securenetterm.com>]
3183 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
3184 result in a zero length in the ASN1_INTEGER structure which was
3185 not consistent with the structure when d2i_ASN1_INTEGER() was used
3186 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
3187 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
3188 where it did not print out a minus for negative ASN1_INTEGER.
3191 *) Add summary printout to ocsp utility. The various functions which
3192 convert status values to strings have been renamed to:
3193 OCSP_response_status_str(), OCSP_cert_status_str() and
3194 OCSP_crl_reason_str() and are no longer static. New options
3195 to verify nonce values and to disable verification. OCSP response
3196 printout format cleaned up.
3199 *) Add additional OCSP certificate checks. These are those specified
3200 in RFC2560. This consists of two separate checks: the CA of the
3201 certificate being checked must either be the OCSP signer certificate
3202 or the issuer of the OCSP signer certificate. In the latter case the
3203 OCSP signer certificate must contain the OCSP signing extended key
3204 usage. This check is performed by attempting to match the OCSP
3205 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
3206 in the OCSP_CERTID structures of the response.
3209 *) Initial OCSP certificate verification added to OCSP_basic_verify()
3210 and related routines. This uses the standard OpenSSL certificate
3211 verify routines to perform initial checks (just CA validity) and
3212 to obtain the certificate chain. Then additional checks will be
3213 performed on the chain. Currently the root CA is checked to see
3214 if it is explicitly trusted for OCSP signing. This is used to set
3215 a root CA as a global signing root: that is any certificate that
3216 chains to that CA is an acceptable OCSP signing certificate.
3219 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
3220 extensions from a separate configuration file.
3221 As when reading extensions from the main configuration file,
3222 the '-extensions ...' option may be used for specifying the
3224 [Massimiliano Pala <madwolf@comune.modena.it>]
3226 *) New OCSP utility. Allows OCSP requests to be generated or
3227 read. The request can be sent to a responder and the output
3228 parsed, outputed or printed in text form. Not complete yet:
3229 still needs to check the OCSP response validity.
3232 *) New subcommands for 'openssl ca':
3233 'openssl ca -status <serial>' prints the status of the cert with
3234 the given serial number (according to the index file).
3235 'openssl ca -updatedb' updates the expiry status of certificates
3237 [Massimiliano Pala <madwolf@comune.modena.it>]
3239 *) New '-newreq-nodes' command option to CA.pl. This is like
3240 '-newreq', but calls 'openssl req' with the '-nodes' option
3241 so that the resulting key is not encrypted.
3242 [Damien Miller <djm@mindrot.org>]
3244 *) New configuration for the GNU Hurd.
3245 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
3247 *) Initial code to implement OCSP basic response verify. This
3248 is currently incomplete. Currently just finds the signer's
3249 certificate and verifies the signature on the response.
3252 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
3253 value of OPENSSLDIR. This is available via the new '-d' option
3254 to 'openssl version', and is also included in 'openssl version -a'.
3257 *) Allowing defining memory allocation callbacks that will be given
3258 file name and line number information in additional arguments
3259 (a const char* and an int). The basic functionality remains, as
3260 well as the original possibility to just replace malloc(),
3261 realloc() and free() by functions that do not know about these
3262 additional arguments. To register and find out the current
3263 settings for extended allocation functions, the following
3264 functions are provided:
3266 CRYPTO_set_mem_ex_functions
3267 CRYPTO_set_locked_mem_ex_functions
3268 CRYPTO_get_mem_ex_functions
3269 CRYPTO_get_locked_mem_ex_functions
3271 These work the same way as CRYPTO_set_mem_functions and friends.
3272 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
3273 extended allocation function is enabled.
3274 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
3275 a conventional allocation function is enabled.
3276 [Richard Levitte, Bodo Moeller]
3278 *) Finish off removing the remaining LHASH function pointer casts.
3279 There should no longer be any prototype-casting required when using
3280 the LHASH abstraction, and any casts that remain are "bugs". See
3281 the callback types and macros at the head of lhash.h for details
3282 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
3285 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
3286 If /dev/[u]random devices are not available or do not return enough
3287 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
3289 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
3290 /etc/entropy will be queried once each in this sequence, quering stops
3291 when enough entropy was collected without querying more sockets.
3294 *) Change the Unix RAND_poll() variant to be able to poll several
3295 random devices, as specified by DEVRANDOM, until a sufficient amount
3296 of data has been collected. We spend at most 10 ms on each file
3297 (select timeout) and read in non-blocking mode. DEVRANDOM now
3298 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
3299 (previously it was just the string "/dev/urandom"), so on typical
3300 platforms the 10 ms delay will never occur.
3301 Also separate out the Unix variant to its own file, rand_unix.c.
3302 For VMS, there's a currently-empty rand_vms.c.
3305 *) Move OCSP client related routines to ocsp_cl.c. These
3306 provide utility functions which an application needing
3307 to issue a request to an OCSP responder and analyse the
3308 response will typically need: as opposed to those which an
3309 OCSP responder itself would need which will be added later.
3311 OCSP_request_sign() signs an OCSP request with an API similar
3312 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
3313 response. OCSP_response_get1_basic() extracts basic response
3314 from response. OCSP_resp_find_status(): finds and extracts status
3315 information from an OCSP_CERTID structure (which will be created
3316 when the request structure is built). These are built from lower
3317 level functions which work on OCSP_SINGLERESP structures but
3318 wont normally be used unless the application wishes to examine
3319 extensions in the OCSP response for example.
3321 Replace nonce routines with a pair of functions.
3322 OCSP_request_add1_nonce() adds a nonce value and optionally
3323 generates a random value. OCSP_check_nonce() checks the
3324 validity of the nonce in an OCSP response.
3327 *) Change function OCSP_request_add() to OCSP_request_add0_id().
3328 This doesn't copy the supplied OCSP_CERTID and avoids the
3329 need to free up the newly created id. Change return type
3330 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
3331 This can then be used to add extensions to the request.
3332 Deleted OCSP_request_new(), since most of its functionality
3333 is now in OCSP_REQUEST_new() (and the case insensitive name
3334 clash) apart from the ability to set the request name which
3335 will be added elsewhere.
3338 *) Update OCSP API. Remove obsolete extensions argument from
3339 various functions. Extensions are now handled using the new
3340 OCSP extension code. New simple OCSP HTTP function which
3341 can be used to send requests and parse the response.
3344 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
3345 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
3346 uses the special reorder version of SET OF to sort the attributes
3347 and reorder them to match the encoded order. This resolves a long
3348 standing problem: a verify on a PKCS7 structure just after signing
3349 it used to fail because the attribute order did not match the
3350 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
3351 it uses the received order. This is necessary to tolerate some broken
3352 software that does not order SET OF. This is handled by encoding
3353 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
3354 to produce the required SET OF.
3357 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
3358 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
3359 files to get correct declarations of the ASN.1 item variables.
3362 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
3363 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
3364 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
3365 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
3366 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
3367 ASN1_ITEM and no wrapper functions.
3370 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
3371 replace the old function pointer based I/O routines. Change most of
3372 the *_d2i_bio() and *_d2i_fp() functions to use these.
3375 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
3376 lines, recognice more "algorithms" that can be deselected, and make
3377 it complain about algorithm deselection that isn't recognised.
3380 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
3381 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
3382 to use new functions. Add NO_ASN1_OLD which can be set to remove
3383 some old style ASN1 functions: this can be used to determine if old
3384 code will still work when these eventually go away.
3387 *) New extension functions for OCSP structures, these follow the
3388 same conventions as certificates and CRLs.
3391 *) New function X509V3_add1_i2d(). This automatically encodes and
3392 adds an extension. Its behaviour can be customised with various
3393 flags to append, replace or delete. Various wrappers added for
3394 certifcates and CRLs.
3397 *) Fix to avoid calling the underlying ASN1 print routine when
3398 an extension cannot be parsed. Correct a typo in the
3399 OCSP_SERVICELOC extension. Tidy up print OCSP format.
3402 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
3403 entries for variables.
3406 *) Add functionality to apps/openssl.c for detecting locking
3407 problems: As the program is single-threaded, all we have
3408 to do is register a locking callback using an array for
3409 storing which locks are currently held by the program.
3412 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
3413 SSL_get_ex_data_X509_STORE_idx(), which is used in
3414 ssl_verify_cert_chain() and thus can be called at any time
3415 during TLS/SSL handshakes so that thread-safety is essential.
3416 Unfortunately, the ex_data design is not at all suited
3417 for multi-threaded use, so it probably should be abolished.
3420 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
3421 [Broadcom, tweaked and integrated by Geoff Thorpe]
3423 *) Move common extension printing code to new function
3424 X509V3_print_extensions(). Reorganise OCSP print routines and
3425 implement some needed OCSP ASN1 functions. Add OCSP extensions.
3428 *) New function X509_signature_print() to remove duplication in some
3432 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
3433 set (this was treated exactly the same as SET OF previously). This
3434 is used to reorder the STACK representing the structure to match the
3435 encoding. This will be used to get round a problem where a PKCS7
3436 structure which was signed could not be verified because the STACK
3437 order did not reflect the encoded order.
3440 *) Reimplement the OCSP ASN1 module using the new code.
3443 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
3444 for its ASN1 operations. The old style function pointers still exist
3445 for now but they will eventually go away.
3448 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
3449 completely replaces the old ASN1 functionality with a table driven
3450 encoder and decoder which interprets an ASN1_ITEM structure describing
3451 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
3452 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
3453 has also been converted to the new form.
3456 *) Change BN_mod_exp_recp so that negative moduli are tolerated
3457 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
3458 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
3459 for negative moduli.
3462 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
3463 of not touching the result's sign bit.
3466 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
3470 *) Changed the LHASH code to use prototypes for callbacks, and created
3471 macros to declare and implement thin (optionally static) functions
3472 that provide type-safety and avoid function pointer casting for the
3473 type-specific callbacks.
3476 *) Added Kerberos Cipher Suites to be used with TLS, as written in
3478 [Veers Staats <staatsvr@asc.hpc.mil>,
3479 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
3481 *) Reformat the FAQ so the different questions and answers can be divided
3482 in sections depending on the subject.
3485 *) Have the zlib compression code load ZLIB.DLL dynamically under
3489 *) New function BN_mod_sqrt for computing square roots modulo a prime
3490 (using the probabilistic Tonelli-Shanks algorithm unless
3491 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
3492 be handled deterministically).
3493 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3495 *) Make BN_mod_inverse faster by explicitly handling small quotients
3496 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
3497 512 bits], about 30% for larger ones [1024 or 2048 bits].)
3500 *) New function BN_kronecker.
3503 *) Fix BN_gcd so that it works on negative inputs; the result is
3504 positive unless both parameters are zero.
3505 Previously something reasonably close to an infinite loop was
3506 possible because numbers could be growing instead of shrinking
3507 in the implementation of Euclid's algorithm.
3510 *) Fix BN_is_word() and BN_is_one() macros to take into account the
3511 sign of the number in question.
3513 Fix BN_is_word(a,w) to work correctly for w == 0.
3515 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
3516 because its test if the absolute value of 'a' equals 'w'.
3517 Note that BN_abs_is_word does *not* handle w == 0 reliably;
3518 it exists mostly for use in the implementations of BN_is_zero(),
3519 BN_is_one(), and BN_is_word().
3522 *) New function BN_swap.
3525 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
3526 the exponentiation functions are more likely to produce reasonable
3527 results on negative inputs.
3530 *) Change BN_mod_mul so that the result is always non-negative.
3531 Previously, it could be negative if one of the factors was negative;
3532 I don't think anyone really wanted that behaviour.
3535 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
3536 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
3537 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
3538 and add new functions:
3547 BN_mod_lshift1_quick
3551 These functions always generate non-negative results.
3553 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
3554 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
3556 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
3557 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
3558 be reduced modulo m.
3559 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3562 The following entry accidentily appeared in the CHANGES file
3563 distributed with OpenSSL 0.9.7. The modifications described in
3564 it do *not* apply to OpenSSL 0.9.7.
3566 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3567 was actually never needed) and in BN_mul(). The removal in BN_mul()
3568 required a small change in bn_mul_part_recursive() and the addition
3569 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3570 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3571 bn_sub_words() and bn_add_words() except they take arrays with
3576 *) In 'openssl passwd', verify passwords read from the terminal
3577 unless the '-salt' option is used (which usually means that
3578 verification would just waste user's time since the resulting
3579 hash is going to be compared with some given password hash)
3580 or the new '-noverify' option is used.
3582 This is an incompatible change, but it does not affect
3583 non-interactive use of 'openssl passwd' (passwords on the command
3584 line, '-stdin' option, '-in ...' option) and thus should not
3588 *) Remove all references to RSAref, since there's no more need for it.
3591 *) Make DSO load along a path given through an environment variable
3592 (SHLIB_PATH) with shl_load().
3595 *) Constify the ENGINE code as a result of BIGNUM constification.
3596 Also constify the RSA code and most things related to it. In a
3597 few places, most notable in the depth of the ASN.1 code, ugly
3598 casts back to non-const were required (to be solved at a later
3602 *) Make it so the openssl application has all engines loaded by default.
3605 *) Constify the BIGNUM routines a little more.
3608 *) Add the following functions:
3610 ENGINE_load_cswift()
3612 ENGINE_load_atalla()
3614 ENGINE_load_builtin_engines()
3616 That way, an application can itself choose if external engines that
3617 are built-in in OpenSSL shall ever be used or not. The benefit is
3618 that applications won't have to be linked with libdl or other dso
3619 libraries unless it's really needed.
3621 Changed 'openssl engine' to load all engines on demand.
3622 Changed the engine header files to avoid the duplication of some
3623 declarations (they differed!).
3626 *) 'openssl engine' can now list capabilities.
3629 *) Better error reporting in 'openssl engine'.
3632 *) Never call load_dh_param(NULL) in s_server.
3635 *) Add engine application. It can currently list engines by name and
3636 identity, and test if they are actually available.
3639 *) Improve RPM specification file by forcing symbolic linking and making
3640 sure the installed documentation is also owned by root.root.
3641 [Damien Miller <djm@mindrot.org>]
3643 *) Give the OpenSSL applications more possibilities to make use of
3644 keys (public as well as private) handled by engines.
3647 *) Add OCSP code that comes from CertCo.
3650 *) Add VMS support for the Rijndael code.
3653 *) Added untested support for Nuron crypto accelerator.
3656 *) Add support for external cryptographic devices. This code was
3657 previously distributed separately as the "engine" branch.
3658 [Geoff Thorpe, Richard Levitte]
3660 *) Rework the filename-translation in the DSO code. It is now possible to
3661 have far greater control over how a "name" is turned into a filename
3662 depending on the operating environment and any oddities about the
3663 different shared library filenames on each system.
3666 *) Support threads on FreeBSD-elf in Configure.
3669 *) Fix for SHA1 assembly problem with MASM: it produces
3670 warnings about corrupt line number information when assembling
3671 with debugging information. This is caused by the overlapping
3673 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
3676 NCONF_get_number() has no error checking at all. As a replacement,
3677 NCONF_get_number_e() is defined (_e for "error checking") and is
3678 promoted strongly. The old NCONF_get_number is kept around for
3679 binary backward compatibility.
3680 Make it possible for methods to load from something other than a BIO,
3681 by providing a function pointer that is given a name instead of a BIO.
3682 For example, this could be used to load configuration data from an
3686 *) Fix for non blocking accept BIOs. Added new I/O special reason
3687 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
3688 with non blocking I/O was not possible because no retry code was
3689 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
3693 *) Added the beginnings of Rijndael support.
3696 *) Fix for bug in DirectoryString mask setting. Add support for
3697 X509_NAME_print_ex() in 'req' and X509_print_ex() function
3698 to allow certificate printing to more controllable, additional
3699 'certopt' option to 'x509' to allow new printing options to be
3703 *) Clean old EAY MD5 hack from e_os.h.
3706 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
3708 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3709 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3710 [Joe Orton, Steve Henson]
3712 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
3714 *) Fix additional bug revealed by the NISCC test suite:
3716 Stop bug triggering large recursion when presented with
3717 certain ASN.1 tags (CVE-2003-0851)
3720 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
3722 *) Fix various bugs revealed by running the NISCC test suite:
3724 Stop out of bounds reads in the ASN1 code when presented with
3725 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3727 If verify callback ignores invalid public key errors don't try to check
3728 certificate signature with the NULL public key.
3732 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3733 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3737 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3738 extra data after the compression methods not only for TLS 1.0
3739 but also for SSL 3.0 (as required by the specification).
3740 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3742 *) Change X509_certificate_type() to mark the key as exported/exportable
3743 when it's 512 *bits* long, not 512 bytes.
3746 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
3748 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3749 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3750 a protocol version number mismatch like a decryption error
3751 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3754 *) Turn on RSA blinding by default in the default implementation
3755 to avoid a timing attack. Applications that don't want it can call
3756 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3757 They would be ill-advised to do so in most cases.
3758 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3760 *) Change RSA blinding code so that it works when the PRNG is not
3761 seeded (in this case, the secret RSA exponent is abused as
3762 an unpredictable seed -- if it is not unpredictable, there
3763 is no point in blinding anyway). Make RSA blinding thread-safe
3764 by remembering the creator's thread ID in rsa->blinding and
3765 having all other threads use local one-time blinding factors
3766 (this requires more computation than sharing rsa->blinding, but
3767 avoids excessive locking; and if an RSA object is not shared
3768 between threads, blinding will still be very fast).
3771 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
3773 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3774 via timing by performing a MAC computation even if incorrrect
3775 block cipher padding has been found. This is a countermeasure
3776 against active attacks where the attacker has to distinguish
3777 between bad padding and a MAC verification error. (CVE-2003-0078)
3779 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3780 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3781 Martin Vuagnoux (EPFL, Ilion)]
3783 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
3785 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
3786 memory from it's contents. This is done with a counter that will
3787 place alternating values in each byte. This can be used to solve
3788 two issues: 1) the removal of calls to memset() by highly optimizing
3789 compilers, and 2) cleansing with other values than 0, since those can
3790 be read through on certain media, for example a swap space on disk.
3793 *) Bugfix: client side session caching did not work with external caching,
3794 because the session->cipher setting was not restored when reloading
3795 from the external cache. This problem was masked, when
3796 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
3797 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
3800 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
3801 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
3802 [Zeev Lieber <zeev-l@yahoo.com>]
3804 *) Undo an undocumented change introduced in 0.9.6e which caused
3805 repeated calls to OpenSSL_add_all_ciphers() and
3806 OpenSSL_add_all_digests() to be ignored, even after calling
3810 *) Change the default configuration reader to deal with last line not
3811 being properly terminated.
3814 *) Change X509_NAME_cmp() so it applies the special rules on handling
3815 DN values that are of type PrintableString, as well as RDNs of type
3816 emailAddress where the value has the type ia5String.
3817 [stefank@valicert.com via Richard Levitte]
3819 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
3820 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
3821 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
3822 the bitwise-OR of the two for use by the majority of applications
3823 wanting this behaviour, and update the docs. The documented
3824 behaviour and actual behaviour were inconsistent and had been
3825 changing anyway, so this is more a bug-fix than a behavioural
3827 [Geoff Thorpe, diagnosed by Nadav Har'El]
3829 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
3830 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
3833 *) Fix initialization code race conditions in
3834 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
3835 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
3836 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
3837 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
3838 ssl2_get_cipher_by_char(),
3839 ssl3_get_cipher_by_char().
3840 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
3842 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
3843 the cached sessions are flushed, as the remove_cb() might use ex_data
3844 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
3845 (see [openssl.org #212]).
3846 [Geoff Thorpe, Lutz Jaenicke]
3848 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
3849 length, instead of the encoding length to d2i_ASN1_OBJECT.
3852 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
3854 *) [In 0.9.6g-engine release:]
3855 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
3856 [Lynn Gazis <lgazis@rainbow.com>]
3858 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
3860 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
3861 and get fix the header length calculation.
3862 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
3863 Alon Kantor <alonk@checkpoint.com> (and others),
3866 *) Use proper error handling instead of 'assertions' in buffer
3867 overflow checks added in 0.9.6e. This prevents DoS (the
3868 assertions could call abort()).
3869 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
3871 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
3873 *) Add various sanity checks to asn1_get_length() to reject
3874 the ASN1 length bytes if they exceed sizeof(long), will appear
3875 negative or the content length exceeds the length of the
3877 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3879 *) Fix cipher selection routines: ciphers without encryption had no flags
3880 for the cipher strength set and where therefore not handled correctly
3881 by the selection routines (PR #130).
3884 *) Fix EVP_dsa_sha macro.
3888 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
3889 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
3890 that was added in OpenSSL 0.9.6d.
3892 As the countermeasure turned out to be incompatible with some
3893 broken SSL implementations, the new option is part of SSL_OP_ALL.
3894 SSL_OP_ALL is usually employed when compatibility with weird SSL
3895 implementations is desired (e.g. '-bugs' option to 's_client' and
3896 's_server'), so the new option is automatically set in many
3900 *) Changes in security patch:
3902 Changes marked "(CHATS)" were sponsored by the Defense Advanced
3903 Research Projects Agency (DARPA) and Air Force Research Laboratory,
3904 Air Force Materiel Command, USAF, under agreement number
3907 *) Add various sanity checks to asn1_get_length() to reject
3908 the ASN1 length bytes if they exceed sizeof(long), will appear
3909 negative or the content length exceeds the length of the
3910 supplied buffer. (CVE-2002-0659)
3911 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3913 *) Assertions for various potential buffer overflows, not known to
3915 [Ben Laurie (CHATS)]
3917 *) Various temporary buffers to hold ASCII versions of integers were
3918 too small for 64 bit platforms. (CVE-2002-0655)
3919 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
3921 *) Remote buffer overflow in SSL3 protocol - an attacker could
3922 supply an oversized session ID to a client. (CVE-2002-0656)
3923 [Ben Laurie (CHATS)]
3925 *) Remote buffer overflow in SSL2 protocol - an attacker could
3926 supply an oversized client master key. (CVE-2002-0656)
3927 [Ben Laurie (CHATS)]
3929 Changes between 0.9.6c and 0.9.6d [9 May 2002]
3931 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
3932 encoded as NULL) with id-dsa-with-sha1.
3933 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
3935 *) Check various X509_...() return values in apps/req.c.
3936 [Nils Larsch <nla@trustcenter.de>]
3938 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
3939 an end-of-file condition would erronously be flagged, when the CRLF
3940 was just at the end of a processed block. The bug was discovered when
3941 processing data through a buffering memory BIO handing the data to a
3942 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
3943 <ptsekov@syntrex.com> and Nedelcho Stanev.
3946 *) Implement a countermeasure against a vulnerability recently found
3947 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
3948 before application data chunks to avoid the use of known IVs
3949 with data potentially chosen by the attacker.
3952 *) Fix length checks in ssl3_get_client_hello().
3955 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
3956 to prevent ssl3_read_internal() from incorrectly assuming that
3957 ssl3_read_bytes() found application data while handshake
3958 processing was enabled when in fact s->s3->in_read_app_data was
3959 merely automatically cleared during the initial handshake.
3960 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
3962 *) Fix object definitions for Private and Enterprise: they were not
3963 recognized in their shortname (=lowercase) representation. Extend
3964 obj_dat.pl to issue an error when using undefined keywords instead
3965 of silently ignoring the problem (Svenning Sorensen
3966 <sss@sss.dnsalias.net>).
3969 *) Fix DH_generate_parameters() so that it works for 'non-standard'
3970 generators, i.e. generators other than 2 and 5. (Previously, the
3971 code did not properly initialise the 'add' and 'rem' values to
3972 BN_generate_prime().)
3974 In the new general case, we do not insist that 'generator' is
3975 actually a primitive root: This requirement is rather pointless;
3976 a generator of the order-q subgroup is just as good, if not
3980 *) Map new X509 verification errors to alerts. Discovered and submitted by
3981 Tom Wu <tom@arcot.com>.
3984 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
3985 returning non-zero before the data has been completely received
3986 when using non-blocking I/O.
3987 [Bodo Moeller; problem pointed out by John Hughes]
3989 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
3990 [Ben Laurie, Lutz Jaenicke]
3992 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
3993 Yoram Zahavi <YoramZ@gilian.com>).
3996 *) Add information about CygWin 1.3 and on, and preserve proper
3997 configuration for the versions before that.
3998 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
4000 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
4001 check whether we deal with a copy of a session and do not delete from
4002 the cache in this case. Problem reported by "Izhar Shoshani Levi"
4003 <izhar@checkpoint.com>.
4006 *) Do not store session data into the internal session cache, if it
4007 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
4008 flag is set). Proposed by Aslam <aslam@funk.com>.
4011 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
4015 *) [In 0.9.6d-engine release:]
4016 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4017 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4019 *) Add the configuration target linux-s390x.
4020 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
4022 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
4023 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
4024 variable as an indication that a ClientHello message has been
4025 received. As the flag value will be lost between multiple
4026 invocations of ssl3_accept when using non-blocking I/O, the
4027 function may not be aware that a handshake has actually taken
4028 place, thus preventing a new session from being added to the
4031 To avoid this problem, we now set s->new_session to 2 instead of
4032 using a local variable.
4033 [Lutz Jaenicke, Bodo Moeller]
4035 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
4036 if the SSL_R_LENGTH_MISMATCH error is detected.
4037 [Geoff Thorpe, Bodo Moeller]
4039 *) New 'shared_ldflag' column in Configure platform table.
4042 *) Fix EVP_CIPHER_mode macro.
4043 ["Dan S. Camper" <dan@bti.net>]
4045 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
4046 type, we must throw them away by setting rr->length to 0.
4047 [D P Chang <dpc@qualys.com>]
4049 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
4051 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
4052 <Dominikus.Scherkl@biodata.com>. (The previous implementation
4053 worked incorrectly for those cases where range = 10..._2 and
4054 3*range is two bits longer than range.)
4057 *) Only add signing time to PKCS7 structures if it is not already
4061 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
4062 OBJ_ld_ce should be OBJ_id_ce.
4063 Also some ip-pda OIDs in crypto/objects/objects.txt were
4064 incorrect (cf. RFC 3039).
4065 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
4067 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
4068 returns early because it has nothing to do.
4069 [Andy Schneider <andy.schneider@bjss.co.uk>]
4071 *) [In 0.9.6c-engine release:]
4072 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
4073 [Andy Schneider <andy.schneider@bjss.co.uk>]
4075 *) [In 0.9.6c-engine release:]
4076 Add support for Cryptographic Appliance's keyserver technology.
4077 (Use engine 'keyclient')
4078 [Cryptographic Appliances and Geoff Thorpe]
4080 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
4081 is called via tools/c89.sh because arguments have to be
4082 rearranged (all '-L' options must appear before the first object
4084 [Richard Shapiro <rshapiro@abinitio.com>]
4086 *) [In 0.9.6c-engine release:]
4087 Add support for Broadcom crypto accelerator cards, backported
4089 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
4091 *) [In 0.9.6c-engine release:]
4092 Add support for SureWare crypto accelerator cards from
4093 Baltimore Technologies. (Use engine 'sureware')
4094 [Baltimore Technologies and Mark Cox]
4096 *) [In 0.9.6c-engine release:]
4097 Add support for crypto accelerator cards from Accelerated
4098 Encryption Processing, www.aep.ie. (Use engine 'aep')
4099 [AEP Inc. and Mark Cox]
4101 *) Add a configuration entry for gcc on UnixWare.
4102 [Gary Benson <gbenson@redhat.com>]
4104 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
4105 messages are stored in a single piece (fixed-length part and
4106 variable-length part combined) and fix various bugs found on the way.
4109 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
4110 instead. BIO_gethostbyname() does not know what timeouts are
4111 appropriate, so entries would stay in cache even when they have
4113 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
4115 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
4116 faced with a pathologically small ClientHello fragment that does
4117 not contain client_version: Instead of aborting with an error,
4118 simply choose the highest available protocol version (i.e.,
4119 TLS 1.0 unless it is disabled). In practice, ClientHello
4120 messages are never sent like this, but this change gives us
4121 strictly correct behaviour at least for TLS.
4124 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
4125 never resets s->method to s->ctx->method when called from within
4126 one of the SSL handshake functions.
4127 [Bodo Moeller; problem pointed out by Niko Baric]
4129 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
4130 (sent using the client's version number) if client_version is
4131 smaller than the protocol version in use. Also change
4132 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
4133 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
4134 the client will at least see that alert.
4137 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
4141 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
4142 client receives HelloRequest while in a handshake.
4143 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
4145 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
4146 should end in 'break', not 'goto end' which circuments various
4147 cleanups done in state SSL_ST_OK. But session related stuff
4148 must be disabled for SSL_ST_OK in the case that we just sent a
4151 Also avoid some overhead by not calling ssl_init_wbio_buffer()
4152 before just sending a HelloRequest.
4153 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
4155 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
4156 reveal whether illegal block cipher padding was found or a MAC
4157 verification error occured. (Neither SSLerr() codes nor alerts
4158 are directly visible to potential attackers, but the information
4159 may leak via logfiles.)
4161 Similar changes are not required for the SSL 2.0 implementation
4162 because the number of padding bytes is sent in clear for SSL 2.0,
4163 and the extra bytes are just ignored. However ssl/s2_pkt.c
4164 failed to verify that the purported number of padding bytes is in
4168 *) Add OpenUNIX-8 support including shared libraries
4169 (Boyd Lynn Gerber <gerberb@zenez.com>).
4172 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
4173 'wristwatch attack' using huge encoding parameters (cf.
4174 James H. Manger's CRYPTO 2001 paper). Note that the
4175 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
4176 encoding parameters and hence was not vulnerable.
4179 *) BN_sqr() bug fix.
4180 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
4182 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
4183 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
4184 followed by modular reduction.
4185 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
4187 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
4188 equivalent based on BN_pseudo_rand() instead of BN_rand().
4191 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
4192 This function was broken, as the check for a new client hello message
4193 to handle SGC did not allow these large messages.
4194 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
4197 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
4200 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
4201 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
4204 *) Rework the configuration and shared library support for Tru64 Unix.
4205 The configuration part makes use of modern compiler features and
4206 still retains old compiler behavior for those that run older versions
4207 of the OS. The shared library support part includes a variant that
4208 uses the RPATH feature, and is available through the special
4209 configuration target "alpha-cc-rpath", which will never be selected
4211 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
4213 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
4214 with the same message size as in ssl3_get_certificate_request().
4215 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
4216 messages might inadvertently be reject as too long.
4217 [Petr Lampa <lampa@fee.vutbr.cz>]
4219 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
4222 *) Modified SSL library such that the verify_callback that has been set
4223 specificly for an SSL object with SSL_set_verify() is actually being
4224 used. Before the change, a verify_callback set with this function was
4225 ignored and the verify_callback() set in the SSL_CTX at the time of
4226 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
4227 to allow the necessary settings.
4230 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
4231 explicitly to NULL, as at least on Solaris 8 this seems not always to be
4232 done automatically (in contradiction to the requirements of the C
4233 standard). This made problems when used from OpenSSH.
4236 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
4237 dh->length and always used
4239 BN_rand_range(priv_key, dh->p).
4241 BN_rand_range() is not necessary for Diffie-Hellman, and this
4242 specific range makes Diffie-Hellman unnecessarily inefficient if
4243 dh->length (recommended exponent length) is much smaller than the
4244 length of dh->p. We could use BN_rand_range() if the order of
4245 the subgroup was stored in the DH structure, but we only have
4250 BN_rand(priv_key, l, ...)
4252 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
4258 RSA_eay_public_encrypt
4259 RSA_eay_private_decrypt
4260 RSA_eay_private_encrypt (signing)
4261 RSA_eay_public_decrypt (signature verification)
4263 (default implementations for RSA_public_encrypt,
4264 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
4265 always reject numbers >= n.
4268 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
4269 to synchronize access to 'locking_thread'. This is necessary on
4270 systems where access to 'locking_thread' (an 'unsigned long'
4271 variable) is not atomic.
4274 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
4275 *before* setting the 'crypto_lock_rand' flag. The previous code had
4276 a race condition if 0 is a valid thread ID.
4277 [Travis Vitek <vitek@roguewave.com>]
4279 *) Add support for shared libraries under Irix.
4280 [Albert Chin-A-Young <china@thewrittenword.com>]
4282 *) Add configuration option to build on Linux on both big-endian and
4284 [Ralf Baechle <ralf@uni-koblenz.de>]
4286 *) Add the possibility to create shared libraries on HP-UX.
4289 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
4291 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
4292 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
4293 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
4294 PRNG state recovery was possible based on the output of
4295 one PRNG request appropriately sized to gain knowledge on
4296 'md' followed by enough consecutive 1-byte PRNG requests
4297 to traverse all of 'state'.
4299 1. When updating 'md_local' (the current thread's copy of 'md')
4300 during PRNG output generation, hash all of the previous
4301 'md_local' value, not just the half used for PRNG output.
4303 2. Make the number of bytes from 'state' included into the hash
4304 independent from the number of PRNG bytes requested.
4306 The first measure alone would be sufficient to avoid
4307 Markku-Juhani's attack. (Actually it had never occurred
4308 to me that the half of 'md_local' used for chaining was the
4309 half from which PRNG output bytes were taken -- I had always
4310 assumed that the secret half would be used.) The second
4311 measure makes sure that additional data from 'state' is never
4312 mixed into 'md_local' in small portions; this heuristically
4313 further strengthens the PRNG.
4316 *) Fix crypto/bn/asm/mips3.s.
4319 *) When only the key is given to "enc", the IV is undefined. Print out
4320 an error message in this case.
4323 *) Handle special case when X509_NAME is empty in X509 printing routines.
4326 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
4327 positive and less than q.
4330 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
4331 used: it isn't thread safe and the add_lock_callback should handle
4333 [Paul Rose <Paul.Rose@bridge.com>]
4335 *) Verify that incoming data obeys the block size in
4336 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
4340 [Ulf Möller, Bodo Möller]
4342 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
4343 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
4344 when fixing the server behaviour for backwards-compatible 'client
4345 hello' messages. (Note that the attack is impractical against
4346 SSL 3.0 and TLS 1.0 anyway because length and version checking
4347 means that the probability of guessing a valid ciphertext is
4348 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
4351 Before 0.9.5, the countermeasure (hide the error by generating a
4352 random 'decryption result') did not work properly because
4353 ERR_clear_error() was missing, meaning that SSL_get_error() would
4354 detect the supposedly ignored error.
4356 Both problems are now fixed.
4359 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
4360 (previously it was 1024).
4363 *) Fix for compatibility mode trust settings: ignore trust settings
4364 unless some valid trust or reject settings are present.
4367 *) Fix for blowfish EVP: its a variable length cipher.
4370 *) Fix various bugs related to DSA S/MIME verification. Handle missing
4371 parameters in DSA public key structures and return an error in the
4372 DSA routines if parameters are absent.
4375 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
4376 in the current directory if neither $RANDFILE nor $HOME was set.
4377 RAND_file_name() in 0.9.6a returned NULL in this case. This has
4378 caused some confusion to Windows users who haven't defined $HOME.
4379 Thus RAND_file_name() is changed again: e_os.h can define a
4380 DEFAULT_HOME, which will be used if $HOME is not set.
4381 For Windows, we use "C:"; on other platforms, we still require
4382 environment variables.
4384 *) Move 'if (!initialized) RAND_poll()' into regions protected by
4385 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
4386 having multiple threads call RAND_poll() concurrently.
4389 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
4390 combination of a flag and a thread ID variable.
4391 Otherwise while one thread is in ssleay_rand_bytes (which sets the
4392 flag), *other* threads can enter ssleay_add_bytes without obeying
4393 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
4394 that they do not hold after the first thread unsets add_do_not_lock).
4397 *) Change bctest again: '-x' expressions are not available in all
4401 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
4403 *) Fix a couple of memory leaks in PKCS7_dataDecode()
4404 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
4406 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
4407 the default extension for executables, if any. Also, make the perl
4408 scripts that use symlink() to test if it really exists and use "cp"
4409 if it doesn't. All this made OpenSSL compilable and installable in
4413 *) Fix for asn1_GetSequence() for indefinite length constructed data.
4414 If SEQUENCE is length is indefinite just set c->slen to the total
4415 amount of data available.
4416 [Steve Henson, reported by shige@FreeBSD.org]
4417 [This change does not apply to 0.9.7.]
4419 *) Change bctest to avoid here-documents inside command substitution
4420 (workaround for FreeBSD /bin/sh bug).
4421 For compatibility with Ultrix, avoid shell functions (introduced
4422 in the bctest version that searches along $PATH).
4425 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
4426 with des_encrypt() defined on some operating systems, like Solaris
4430 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
4431 On the Importance of Eliminating Errors in Cryptographic
4432 Computations, J. Cryptology 14 (2001) 2, 101-119,
4433 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
4436 *) MIPS assembler BIGNUM division bug fix.
4439 *) Disabled incorrect Alpha assembler code.
4442 *) Fix PKCS#7 decode routines so they correctly update the length
4443 after reading an EOC for the EXPLICIT tag.
4445 [This change does not apply to 0.9.7.]
4447 *) Fix bug in PKCS#12 key generation routines. This was triggered
4448 if a 3DES key was generated with a 0 initial byte. Include
4449 PKCS12_BROKEN_KEYGEN compilation option to retain the old
4450 (but broken) behaviour.
4453 *) Enhance bctest to search for a working bc along $PATH and print
4455 [Tim Rice <tim@multitalents.net> via Richard Levitte]
4457 *) Fix memory leaks in err.c: free err_data string if necessary;
4458 don't write to the wrong index in ERR_set_error_data.
4461 *) Implement ssl23_peek (analogous to ssl23_read), which previously
4465 *) Replace rdtsc with _emit statements for VC++ version 5.
4466 [Jeremy Cooper <jeremy@baymoo.org>]
4468 *) Make it possible to reuse SSLv2 sessions.
4471 *) In copy_email() check for >= 0 as a return value for
4472 X509_NAME_get_index_by_NID() since 0 is a valid index.
4473 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
4475 *) Avoid coredump with unsupported or invalid public keys by checking if
4476 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
4477 PKCS7_verify() fails with non detached data.
4480 *) Don't use getenv in library functions when run as setuid/setgid.
4481 New function OPENSSL_issetugid().
4484 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
4485 due to incorrect handling of multi-threading:
4487 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
4489 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
4491 3. Count how many times MemCheck_off() has been called so that
4492 nested use can be treated correctly. This also avoids
4493 inband-signalling in the previous code (which relied on the
4494 assumption that thread ID 0 is impossible).
4497 *) Add "-rand" option also to s_client and s_server.
4500 *) Fix CPU detection on Irix 6.x.
4501 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
4502 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4504 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
4507 [This change does not apply to 0.9.7.]
4509 *) Use the cached encoding of an X509_NAME structure rather than
4510 copying it. This is apparently the reason for the libsafe "errors"
4511 but the code is actually correct.
4514 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
4515 Bleichenbacher's DSA attack.
4516 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
4517 to be set and top=0 forces the highest bit to be set; top=-1 is new
4518 and leaves the highest bit random.
4519 [Ulf Moeller, Bodo Moeller]
4521 *) In the NCONF_...-based implementations for CONF_... queries
4522 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
4523 a temporary CONF structure with the data component set to NULL
4524 (which gives segmentation faults in lh_retrieve).
4525 Instead, use NULL for the CONF pointer in CONF_get_string and
4526 CONF_get_number (which may use environment variables) and directly
4527 return NULL from CONF_get_section.
4530 *) Fix potential buffer overrun for EBCDIC.
4533 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
4534 keyUsage if basicConstraints absent for a CA.
4537 *) Make SMIME_write_PKCS7() write mail header values with a format that
4538 is more generally accepted (no spaces before the semicolon), since
4539 some programs can't parse those values properly otherwise. Also make
4540 sure BIO's that break lines after each write do not create invalid
4544 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
4545 macros previously used would not encode an empty SEQUENCE OF
4546 and break the signature.
4548 [This change does not apply to 0.9.7.]
4550 *) Zero the premaster secret after deriving the master secret in
4554 *) Add some EVP_add_digest_alias registrations (as found in
4555 OpenSSL_add_all_digests()) to SSL_library_init()
4556 aka OpenSSL_add_ssl_algorithms(). This provides improved
4557 compatibility with peers using X.509 certificates
4558 with unconventional AlgorithmIdentifier OIDs.
4561 *) Fix for Irix with NO_ASM.
4562 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4564 *) ./config script fixes.
4565 [Ulf Moeller, Richard Levitte]
4567 *) Fix 'openssl passwd -1'.
4570 *) Change PKCS12_key_gen_asc() so it can cope with non null
4571 terminated strings whose length is passed in the passlen
4572 parameter, for example from PEM callbacks. This was done
4573 by adding an extra length parameter to asc2uni().
4574 [Steve Henson, reported by <oddissey@samsung.co.kr>]
4576 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
4577 call failed, free the DSA structure.
4580 *) Fix to uni2asc() to cope with zero length Unicode strings.
4581 These are present in some PKCS#12 files.
4584 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
4585 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
4586 when writing a 32767 byte record.
4587 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
4589 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
4590 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
4592 (RSA objects have a reference count access to which is protected
4593 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
4594 so they are meant to be shared between threads.)
4595 [Bodo Moeller, Geoff Thorpe; original patch submitted by
4596 "Reddie, Steven" <Steven.Reddie@ca.com>]
4598 *) Fix a deadlock in CRYPTO_mem_leaks().
4601 *) Use better test patterns in bntest.
4604 *) rand_win.c fix for Borland C.
4607 *) BN_rshift bugfix for n == 0.
4610 *) Add a 'bctest' script that checks for some known 'bc' bugs
4611 so that 'make test' does not abort just because 'bc' is broken.
4614 *) Store verify_result within SSL_SESSION also for client side to
4615 avoid potential security hole. (Re-used sessions on the client side
4616 always resulted in verify_result==X509_V_OK, not using the original
4617 result of the server certificate verification.)
4620 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
4621 SSL3_RT_APPLICATION_DATA, return 0.
4622 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
4626 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
4627 releases, have been re-implemented by renaming the previous
4628 implementations of ssl2_read and ssl3_read to ssl2_read_internal
4629 and ssl3_read_internal, respectively, and adding 'peek' parameters
4630 to them. The new ssl[23]_{read,peek} functions are calls to
4631 ssl[23]_read_internal with the 'peek' flag set appropriately.
4632 A 'peek' parameter has also been added to ssl3_read_bytes, which
4633 does the actual work for ssl3_read_internal.
4636 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
4637 the method-specific "init()" handler. Also clean up ex_data after
4638 calling the method-specific "finish()" handler. Previously, this was
4639 happening the other way round.
4642 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
4643 The previous value, 12, was not always sufficient for BN_mod_exp().
4646 *) Make sure that shared libraries get the internal name engine with
4647 the full version number and not just 0. This should mark the
4648 shared libraries as not backward compatible. Of course, this should
4649 be changed again when we can guarantee backward binary compatibility.
4652 *) Fix typo in get_cert_by_subject() in by_dir.c
4653 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
4655 *) Rework the system to generate shared libraries:
4657 - Make note of the expected extension for the shared libraries and
4658 if there is a need for symbolic links from for example libcrypto.so.0
4659 to libcrypto.so.0.9.7. There is extended info in Configure for
4662 - Make as few rebuilds of the shared libraries as possible.
4664 - Still avoid linking the OpenSSL programs with the shared libraries.
4666 - When installing, install the shared libraries separately from the
4670 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
4672 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
4673 and not in SSL_clear because the latter is also used by the
4674 accept/connect functions; previously, the settings made by
4675 SSL_set_read_ahead would be lost during the handshake.
4676 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
4678 *) Correct util/mkdef.pl to be selective about disabled algorithms.
4679 Previously, it would create entries for disableed algorithms no
4683 *) Added several new manual pages for SSL_* function.
4686 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
4688 *) In ssl23_get_client_hello, generate an error message when faced
4689 with an initial SSL 3.0/TLS record that is too small to contain the
4690 first two bytes of the ClientHello message, i.e. client_version.
4691 (Note that this is a pathologic case that probably has never happened
4692 in real life.) The previous approach was to use the version number
4693 from the record header as a substitute; but our protocol choice
4694 should not depend on that one because it is not authenticated
4695 by the Finished messages.
4698 *) More robust randomness gathering functions for Windows.
4699 [Jeffrey Altman <jaltman@columbia.edu>]
4701 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
4702 not set then we don't setup the error code for issuer check errors
4703 to avoid possibly overwriting other errors which the callback does
4704 handle. If an application does set the flag then we assume it knows
4705 what it is doing and can handle the new informational codes
4709 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
4710 a general "ANY" type, as such it should be able to decode anything
4711 including tagged types. However it didn't check the class so it would
4712 wrongly interpret tagged types in the same way as their universal
4713 counterpart and unknown types were just rejected. Changed so that the
4714 tagged and unknown types are handled in the same way as a SEQUENCE:
4715 that is the encoding is stored intact. There is also a new type
4716 "V_ASN1_OTHER" which is used when the class is not universal, in this
4717 case we have no idea what the actual type is so we just lump them all
4721 *) On VMS, stdout may very well lead to a file that is written to
4722 in a record-oriented fashion. That means that every write() will
4723 write a separate record, which will be read separately by the
4724 programs trying to read from it. This can be very confusing.
4726 The solution is to put a BIO filter in the way that will buffer
4727 text until a linefeed is reached, and then write everything a
4728 line at a time, so every record written will be an actual line,
4729 not chunks of lines and not (usually doesn't happen, but I've
4730 seen it once) several lines in one record. BIO_f_linebuffer() is
4733 Currently, it's a VMS-only method, because that's where it has
4734 been tested well enough.
4737 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
4738 it can return incorrect results.
4739 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
4740 but it was in 0.9.6-beta[12].)
4743 *) Disable the check for content being present when verifying detached
4744 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
4745 include zero length content when signing messages.
4748 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
4749 BIO_ctrl (for BIO pairs).
4752 *) Add DSO method for VMS.
4755 *) Bug fix: Montgomery multiplication could produce results with the
4759 *) Add RPM specification openssl.spec and modify it to build three
4760 packages. The default package contains applications, application
4761 documentation and run-time libraries. The devel package contains
4762 include files, static libraries and function documentation. The
4763 doc package contains the contents of the doc directory. The original
4764 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
4767 *) Add a large number of documentation files for many SSL routines.
4768 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
4770 *) Add a configuration entry for Sony News 4.
4771 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
4773 *) Don't set the two most significant bits to one when generating a
4774 random number < q in the DSA library.
4777 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
4778 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
4779 the underlying transport is blocking) if a handshake took place.
4780 (The default behaviour is needed by applications such as s_client
4781 and s_server that use select() to determine when to use SSL_read;
4782 but for applications that know in advance when to expect data, it
4783 just makes things more complicated.)
4786 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
4790 *) Add a few more EBCDIC conditionals that make `req' and `x509'
4791 work better on such systems.
4792 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
4794 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
4795 Update PKCS12_parse() so it copies the friendlyName and the
4796 keyid to the certificates aux info.
4799 *) Fix bug in PKCS7_verify() which caused an infinite loop
4800 if there was more than one signature.
4801 [Sven Uszpelkat <su@celocom.de>]
4803 *) Major change in util/mkdef.pl to include extra information
4804 about each symbol, as well as presentig variables as well
4805 as functions. This change means that there's n more need
4806 to rebuild the .num files when some algorithms are excluded.
4809 *) Allow the verify time to be set by an application,
4810 rather than always using the current time.
4813 *) Phase 2 verify code reorganisation. The certificate
4814 verify code now looks up an issuer certificate by a
4815 number of criteria: subject name, authority key id
4816 and key usage. It also verifies self signed certificates
4817 by the same criteria. The main comparison function is
4818 X509_check_issued() which performs these checks.
4820 Lot of changes were necessary in order to support this
4821 without completely rewriting the lookup code.
4823 Authority and subject key identifier are now cached.
4825 The LHASH 'certs' is X509_STORE has now been replaced
4826 by a STACK_OF(X509_OBJECT). This is mainly because an
4827 LHASH can't store or retrieve multiple objects with
4828 the same hash value.
4830 As a result various functions (which were all internal
4831 use only) have changed to handle the new X509_STORE
4832 structure. This will break anything that messed round
4833 with X509_STORE internally.
4835 The functions X509_STORE_add_cert() now checks for an
4836 exact match, rather than just subject name.
4838 The X509_STORE API doesn't directly support the retrieval
4839 of multiple certificates matching a given criteria, however
4840 this can be worked round by performing a lookup first
4841 (which will fill the cache with candidate certificates)
4842 and then examining the cache for matches. This is probably
4843 the best we can do without throwing out X509_LOOKUP
4844 entirely (maybe later...).
4846 The X509_VERIFY_CTX structure has been enhanced considerably.
4848 All certificate lookup operations now go via a get_issuer()
4849 callback. Although this currently uses an X509_STORE it
4850 can be replaced by custom lookups. This is a simple way
4851 to bypass the X509_STORE hackery necessary to make this
4852 work and makes it possible to use more efficient techniques
4853 in future. A very simple version which uses a simple
4854 STACK for its trusted certificate store is also provided
4855 using X509_STORE_CTX_trusted_stack().
4857 The verify_cb() and verify() callbacks now have equivalents
4858 in the X509_STORE_CTX structure.
4860 X509_STORE_CTX also has a 'flags' field which can be used
4861 to customise the verify behaviour.
4864 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
4865 excludes S/MIME capabilities.
4868 *) When a certificate request is read in keep a copy of the
4869 original encoding of the signed data and use it when outputing
4870 again. Signatures then use the original encoding rather than
4871 a decoded, encoded version which may cause problems if the
4872 request is improperly encoded.
4875 *) For consistency with other BIO_puts implementations, call
4876 buffer_write(b, ...) directly in buffer_puts instead of calling
4879 In BIO_puts, increment b->num_write as in BIO_write.
4880 [Peter.Sylvester@EdelWeb.fr]
4882 *) Fix BN_mul_word for the case where the word is 0. (We have to use
4883 BN_zero, we may not return a BIGNUM with an array consisting of
4887 *) Avoid calling abort() from within the library when problems are
4888 detected, except if preprocessor symbols have been defined
4889 (such as REF_CHECK, BN_DEBUG etc.).
4892 *) New openssl application 'rsautl'. This utility can be
4893 used for low level RSA operations. DER public key
4894 BIO/fp routines also added.
4897 *) New Configure entry and patches for compiling on QNX 4.
4898 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
4900 *) A demo state-machine implementation was sponsored by
4901 Nuron (http://www.nuron.com/) and is now available in
4902 demos/state_machine.
4905 *) New options added to the 'dgst' utility for signature
4906 generation and verification.
4909 *) Unrecognized PKCS#7 content types are now handled via a
4910 catch all ASN1_TYPE structure. This allows unsupported
4911 types to be stored as a "blob" and an application can
4912 encode and decode it manually.
4915 *) Fix various signed/unsigned issues to make a_strex.c
4917 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
4919 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
4920 length if passed a buffer. ASN1_INTEGER_to_BN failed
4921 if passed a NULL BN and its argument was negative.
4922 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
4924 *) Modification to PKCS#7 encoding routines to output definite
4925 length encoding. Since currently the whole structures are in
4926 memory there's not real point in using indefinite length
4927 constructed encoding. However if OpenSSL is compiled with
4928 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
4931 *) Added BIO_vprintf() and BIO_vsnprintf().
4934 *) Added more prefixes to parse for in the the strings written
4935 through a logging bio, to cover all the levels that are available
4936 through syslog. The prefixes are now:
4938 PANIC, EMERG, EMR => LOG_EMERG
4939 ALERT, ALR => LOG_ALERT
4940 CRIT, CRI => LOG_CRIT
4941 ERROR, ERR => LOG_ERR
4942 WARNING, WARN, WAR => LOG_WARNING
4943 NOTICE, NOTE, NOT => LOG_NOTICE
4944 INFO, INF => LOG_INFO
4945 DEBUG, DBG => LOG_DEBUG
4947 and as before, if none of those prefixes are present at the
4948 beginning of the string, LOG_ERR is chosen.
4950 On Win32, the LOG_* levels are mapped according to this:
4952 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
4953 LOG_WARNING => EVENTLOG_WARNING_TYPE
4954 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
4958 *) Made it possible to reconfigure with just the configuration
4959 argument "reconf" or "reconfigure". The command line arguments
4960 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
4961 and are retrieved from there when reconfiguring.
4965 [Assar Westerlund <assar@sics.se>, Richard Levitte]
4967 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
4970 *) The obj_dat.pl script was messing up the sorting of object
4971 names. The reason was that it compared the quoted version
4972 of strings as a result "OCSP" > "OCSP Signing" because
4973 " > SPACE. Changed script to store unquoted versions of
4974 names and add quotes on output. It was also omitting some
4975 names from the lookup table if they were given a default
4976 value (that is if SN is missing it is given the same
4977 value as LN and vice versa), these are now added on the
4978 grounds that if an object has a name we should be able to
4979 look it up. Finally added warning output when duplicate
4980 short or long names are found.
4983 *) Changes needed for Tandem NSK.
4984 [Scott Uroff <scott@xypro.com>]
4986 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
4987 RSA_padding_check_SSLv23(), special padding was never detected
4988 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
4989 version rollback attacks was not effective.
4991 In s23_clnt.c, don't use special rollback-attack detection padding
4992 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
4993 client; similarly, in s23_srvr.c, don't do the rollback check if
4994 SSL 2.0 is the only protocol enabled in the server.
4997 *) Make it possible to get hexdumps of unprintable data with 'openssl
4998 asn1parse'. By implication, the functions ASN1_parse_dump() and
4999 BIO_dump_indent() are added.
5002 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
5003 these print out strings and name structures based on various
5004 flags including RFC2253 support and proper handling of
5005 multibyte characters. Added options to the 'x509' utility
5006 to allow the various flags to be set.
5009 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
5010 Also change the functions X509_cmp_current_time() and
5011 X509_gmtime_adj() work with an ASN1_TIME structure,
5012 this will enable certificates using GeneralizedTime in validity
5013 dates to be checked.
5016 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
5017 negative public key encodings) on by default,
5018 NO_NEG_PUBKEY_BUG can be set to disable it.
5021 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
5022 content octets. An i2c_ASN1_OBJECT is unnecessary because
5023 the encoding can be trivially obtained from the structure.
5026 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
5027 not read locks (CRYPTO_r_[un]lock).
5030 *) A first attempt at creating official support for shared
5031 libraries through configuration. I've kept it so the
5032 default is static libraries only, and the OpenSSL programs
5033 are always statically linked for now, but there are
5034 preparations for dynamic linking in place.
5035 This has been tested on Linux and Tru64.
5038 *) Randomness polling function for Win9x, as described in:
5039 Peter Gutmann, Software Generation of Practically Strong
5043 *) Fix so PRNG is seeded in req if using an already existing
5047 *) New options to smime application. -inform and -outform
5048 allow alternative formats for the S/MIME message including
5049 PEM and DER. The -content option allows the content to be
5050 specified separately. This should allow things like Netscape
5051 form signing output easier to verify.
5054 *) Fix the ASN1 encoding of tags using the 'long form'.
5057 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
5058 STRING types. These convert content octets to and from the
5059 underlying type. The actual tag and length octets are
5060 already assumed to have been read in and checked. These
5061 are needed because all other string types have virtually
5062 identical handling apart from the tag. By having versions
5063 of the ASN1 functions that just operate on content octets
5064 IMPLICIT tagging can be handled properly. It also allows
5065 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
5066 and ASN1_INTEGER are identical apart from the tag.
5069 *) Change the handling of OID objects as follows:
5071 - New object identifiers are inserted in objects.txt, following
5072 the syntax given in objects.README.
5073 - objects.pl is used to process obj_mac.num and create a new
5075 - obj_dat.pl is used to create a new obj_dat.h, using the data in
5078 This is currently kind of a hack, and the perl code in objects.pl
5079 isn't very elegant, but it works as I intended. The simplest way
5080 to check that it worked correctly is to look in obj_dat.h and
5081 check the array nid_objs and make sure the objects haven't moved
5082 around (this is important!). Additions are OK, as well as
5083 consistent name changes.
5086 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
5089 *) Addition of the command line parameter '-rand file' to 'openssl req'.
5090 The given file adds to whatever has already been seeded into the
5091 random pool through the RANDFILE configuration file option or
5092 environment variable, or the default random state file.
5095 *) mkstack.pl now sorts each macro group into lexical order.
5096 Previously the output order depended on the order the files
5097 appeared in the directory, resulting in needless rewriting
5101 *) Patches to make OpenSSL compile under Win32 again. Mostly
5102 work arounds for the VC++ problem that it treats func() as
5103 func(void). Also stripped out the parts of mkdef.pl that
5104 added extra typesafe functions: these no longer exist.
5107 *) Reorganisation of the stack code. The macros are now all
5108 collected in safestack.h . Each macro is defined in terms of
5109 a "stack macro" of the form SKM_<name>(type, a, b). The
5110 DEBUG_SAFESTACK is now handled in terms of function casts,
5111 this has the advantage of retaining type safety without the
5112 use of additional functions. If DEBUG_SAFESTACK is not defined
5113 then the non typesafe macros are used instead. Also modified the
5114 mkstack.pl script to handle the new form. Needs testing to see
5115 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
5116 the default if no major problems. Similar behaviour for ASN1_SET_OF
5117 and PKCS12_STACK_OF.
5120 *) When some versions of IIS use the 'NET' form of private key the
5121 key derivation algorithm is different. Normally MD5(password) is
5122 used as a 128 bit RC4 key. In the modified case
5123 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
5124 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
5125 as the old Netscape_RSA functions except they have an additional
5126 'sgckey' parameter which uses the modified algorithm. Also added
5127 an -sgckey command line option to the rsa utility. Thanks to
5128 Adrian Peck <bertie@ncipher.com> for posting details of the modified
5129 algorithm to openssl-dev.
5132 *) The evp_local.h macros were using 'c.##kname' which resulted in
5133 invalid expansion on some systems (SCO 5.0.5 for example).
5134 Corrected to 'c.kname'.
5135 [Phillip Porch <root@theporch.com>]
5137 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
5138 a STACK of email addresses from a certificate or request, these look
5139 in the subject name and the subject alternative name extensions and
5140 omit any duplicate addresses.
5143 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
5144 This makes DSA verification about 2 % faster.
5147 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
5148 (meaning that now 2^5 values will be precomputed, which is only 4 KB
5149 plus overhead for 1024 bit moduli).
5150 This makes exponentiations about 0.5 % faster for 1024 bit
5151 exponents (as measured by "openssl speed rsa2048").
5154 *) Rename memory handling macros to avoid conflicts with other
5156 Malloc => OPENSSL_malloc
5157 Malloc_locked => OPENSSL_malloc_locked
5158 Realloc => OPENSSL_realloc
5159 Free => OPENSSL_free
5162 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
5163 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
5166 *) CygWin32 support.
5167 [John Jarvie <jjarvie@newsguy.com>]
5169 *) The type-safe stack code has been rejigged. It is now only compiled
5170 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
5171 by default all type-specific stack functions are "#define"d back to
5172 standard stack functions. This results in more streamlined output
5173 but retains the type-safety checking possibilities of the original
5177 *) The STACK code has been cleaned up, and certain type declarations
5178 that didn't make a lot of sense have been brought in line. This has
5179 also involved a cleanup of sorts in safestack.h to more correctly
5180 map type-safe stack functions onto their plain stack counterparts.
5181 This work has also resulted in a variety of "const"ifications of
5182 lots of the code, especially "_cmp" operations which should normally
5183 be prototyped with "const" parameters anyway.
5186 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
5187 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
5188 (The PRNG state consists of two parts, the large pool 'state' and 'md',
5189 where all of 'md' is used each time the PRNG is used, but 'state'
5190 is used only indexed by a cyclic counter. As entropy may not be
5191 well distributed from the beginning, 'md' is important as a
5192 chaining variable. However, the output function chains only half
5193 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
5194 all of 'md', and seeding with STATE_SIZE dummy bytes will result
5195 in all of 'state' being rewritten, with the new values depending
5196 on virtually all of 'md'. This overcomes the 80 bit limitation.)
5199 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
5200 the handshake is continued after ssl_verify_cert_chain();
5201 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
5202 can lead to 'unexplainable' connection aborts later.
5203 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
5205 *) Major EVP API cipher revision.
5206 Add hooks for extra EVP features. This allows various cipher
5207 parameters to be set in the EVP interface. Support added for variable
5208 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
5209 setting of RC2 and RC5 parameters.
5211 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
5214 Remove lots of duplicated code from the EVP library. For example *every*
5215 cipher init() function handles the 'iv' in the same way according to the
5216 cipher mode. They also all do nothing if the 'key' parameter is NULL and
5217 for CFB and OFB modes they zero ctx->num.
5219 New functionality allows removal of S/MIME code RC2 hack.
5221 Most of the routines have the same form and so can be declared in terms
5224 By shifting this to the top level EVP_CipherInit() it can be removed from
5225 all individual ciphers. If the cipher wants to handle IVs or keys
5226 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
5229 Change lots of functions like EVP_EncryptUpdate() to now return a
5230 value: although software versions of the algorithms cannot fail
5231 any installed hardware versions can.
5234 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
5235 this option is set, tolerate broken clients that send the negotiated
5236 protocol version number instead of the requested protocol version
5240 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
5241 i.e. non-zero for export ciphersuites, zero otherwise.
5242 Previous versions had this flag inverted, inconsistent with
5243 rsa_tmp_cb (..._TMP_RSA_CB).
5244 [Bodo Moeller; problem reported by Amit Chopra]
5246 *) Add missing DSA library text string. Work around for some IIS
5247 key files with invalid SEQUENCE encoding.
5250 *) Add a document (doc/standards.txt) that list all kinds of standards
5251 and so on that are implemented in OpenSSL.
5254 *) Enhance c_rehash script. Old version would mishandle certificates
5255 with the same subject name hash and wouldn't handle CRLs at all.
5256 Added -fingerprint option to crl utility, to support new c_rehash
5260 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
5263 *) Fix for SSL server purpose checking. Server checking was
5264 rejecting certificates which had extended key usage present
5265 but no ssl client purpose.
5266 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
5268 *) Make PKCS#12 code work with no password. The PKCS#12 spec
5269 is a little unclear about how a blank password is handled.
5270 Since the password in encoded as a BMPString with terminating
5271 double NULL a zero length password would end up as just the
5272 double NULL. However no password at all is different and is
5273 handled differently in the PKCS#12 key generation code. NS
5274 treats a blank password as zero length. MSIE treats it as no
5275 password on export: but it will try both on import. We now do
5276 the same: PKCS12_parse() tries zero length and no password if
5277 the password is set to "" or NULL (NULL is now a valid password:
5278 it wasn't before) as does the pkcs12 application.
5281 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
5282 perror when PEM_read_bio_X509_REQ fails, the error message must
5283 be obtained from the error queue.
5286 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
5287 it in ERR_remove_state if appropriate, and change ERR_get_state
5288 accordingly to avoid race conditions (this is necessary because
5289 thread_hash is no longer constant once set).
5292 *) Bugfix for linux-elf makefile.one.
5295 *) RSA_get_default_method() will now cause a default
5296 RSA_METHOD to be chosen if one doesn't exist already.
5297 Previously this was only set during a call to RSA_new()
5298 or RSA_new_method(NULL) meaning it was possible for
5299 RSA_get_default_method() to return NULL.
5302 *) Added native name translation to the existing DSO code
5303 that will convert (if the flag to do so is set) filenames
5304 that are sufficiently small and have no path information
5305 into a canonical native form. Eg. "blah" converted to
5306 "libblah.so" or "blah.dll" etc.
5309 *) New function ERR_error_string_n(e, buf, len) which is like
5310 ERR_error_string(e, buf), but writes at most 'len' bytes
5311 including the 0 terminator. For ERR_error_string_n, 'buf'
5313 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
5315 *) CONF library reworked to become more general. A new CONF
5316 configuration file reader "class" is implemented as well as a
5317 new functions (NCONF_*, for "New CONF") to handle it. The now
5318 old CONF_* functions are still there, but are reimplemented to
5319 work in terms of the new functions. Also, a set of functions
5320 to handle the internal storage of the configuration data is
5321 provided to make it easier to write new configuration file
5322 reader "classes" (I can definitely see something reading a
5323 configuration file in XML format, for example), called _CONF_*,
5324 or "the configuration storage API"...
5326 The new configuration file reading functions are:
5328 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
5329 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
5331 NCONF_default, NCONF_WIN32
5333 NCONF_dump_fp, NCONF_dump_bio
5335 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
5336 NCONF_new creates a new CONF object. This works in the same way
5337 as other interfaces in OpenSSL, like the BIO interface.
5338 NCONF_dump_* dump the internal storage of the configuration file,
5339 which is useful for debugging. All other functions take the same
5340 arguments as the old CONF_* functions wth the exception of the
5341 first that must be a `CONF *' instead of a `LHASH *'.
5343 To make it easer to use the new classes with the old CONF_* functions,
5344 the function CONF_set_default_method is provided.
5347 *) Add '-tls1' option to 'openssl ciphers', which was already
5348 mentioned in the documentation but had not been implemented.
5349 (This option is not yet really useful because even the additional
5350 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
5353 *) Initial DSO code added into libcrypto for letting OpenSSL (and
5354 OpenSSL-based applications) load shared libraries and bind to
5355 them in a portable way.
5356 [Geoff Thorpe, with contributions from Richard Levitte]
5358 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
5360 *) Make sure _lrotl and _lrotr are only used with MSVC.
5362 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
5363 (the default implementation of RAND_status).
5365 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
5366 to '-clrext' (= clear extensions), as intended and documented.
5367 [Bodo Moeller; inconsistency pointed out by Michael Attili
5370 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
5371 was larger than the MD block size.
5372 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
5374 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
5375 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
5376 using the passed key: if the passed key was a private key the result
5377 of X509_print(), for example, would be to print out all the private key
5381 *) des_quad_cksum() byte order bug fix.
5382 [Ulf Möller, using the problem description in krb4-0.9.7, where
5383 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
5385 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
5387 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
5389 *) For easily testing in shell scripts whether some command
5390 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
5391 returns with exit code 0 iff no command of the given name is available.
5392 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
5393 the output goes to stdout and nothing is printed to stderr.
5394 Additional arguments are always ignored.
5396 Since for each cipher there is a command of the same name,
5397 the 'no-cipher' compilation switches can be tested this way.
5399 ('openssl no-XXX' is not able to detect pseudo-commands such
5400 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
5403 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
5406 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
5407 is set; it will be thrown away anyway because each handshake creates
5409 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
5410 to parameters -- in previous versions (since OpenSSL 0.9.3) the
5411 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
5412 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
5415 *) New s_client option -ign_eof: EOF at stdin is ignored, and
5416 'Q' and 'R' lose their special meanings (quit/renegotiate).
5417 This is part of what -quiet does; unlike -quiet, -ign_eof
5418 does not suppress any output.
5421 *) Add compatibility options to the purpose and trust code. The
5422 purpose X509_PURPOSE_ANY is "any purpose" which automatically
5423 accepts a certificate or CA, this was the previous behaviour,
5424 with all the associated security issues.
5426 X509_TRUST_COMPAT is the old trust behaviour: only and
5427 automatically trust self signed roots in certificate store. A
5428 new trust setting X509_TRUST_DEFAULT is used to specify that
5429 a purpose has no associated trust setting and it should instead
5430 use the value in the default purpose.
5433 *) Fix the PKCS#8 DSA private key code so it decodes keys again
5434 and fix a memory leak.
5437 *) In util/mkerr.pl (which implements 'make errors'), preserve
5438 reason strings from the previous version of the .c file, as
5439 the default to have only downcase letters (and digits) in
5440 automatically generated reasons codes is not always appropriate.
5443 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
5444 using strerror. Previously, ERR_reason_error_string() returned
5445 library names as reason strings for SYSerr; but SYSerr is a special
5446 case where small numbers are errno values, not library numbers.
5449 *) Add '-dsaparam' option to 'openssl dhparam' application. This
5450 converts DSA parameters into DH parameters. (When creating parameters,
5451 DSA_generate_parameters is used.)
5454 *) Include 'length' (recommended exponent length) in C code generated
5455 by 'openssl dhparam -C'.
5458 *) The second argument to set_label in perlasm was already being used
5459 so couldn't be used as a "file scope" flag. Moved to third argument
5463 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
5464 instead of RAND_bytes for encryption IVs and salts.
5467 *) Include RAND_status() into RAND_METHOD instead of implementing
5468 it only for md_rand.c Otherwise replacing the PRNG by calling
5469 RAND_set_rand_method would be impossible.
5472 *) Don't let DSA_generate_key() enter an infinite loop if the random
5473 number generation fails.
5476 *) New 'rand' application for creating pseudo-random output.
5479 *) Added configuration support for Linux/IA64
5480 [Rolf Haberrecker <rolf@suse.de>]
5482 *) Assembler module support for Mingw32.
5485 *) Shared library support for HPUX (in shlib/).
5486 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
5488 *) Shared library support for Solaris gcc.
5489 [Lutz Behnke <behnke@trustcenter.de>]
5491 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
5493 *) PKCS7_encrypt() was adding text MIME headers twice because they
5494 were added manually and by SMIME_crlf_copy().
5497 *) In bntest.c don't call BN_rand with zero bits argument.
5498 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
5500 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
5501 case was implemented. This caused BN_div_recp() to fail occasionally.
5504 *) Add an optional second argument to the set_label() in the perl
5505 assembly language builder. If this argument exists and is set
5506 to 1 it signals that the assembler should use a symbol whose
5507 scope is the entire file, not just the current function. This
5508 is needed with MASM which uses the format label:: for this scope.
5509 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
5511 *) Change the ASN1 types so they are typedefs by default. Before
5512 almost all types were #define'd to ASN1_STRING which was causing
5513 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
5517 *) Change names of new functions to the new get1/get0 naming
5518 convention: After 'get1', the caller owns a reference count
5519 and has to call ..._free; 'get0' returns a pointer to some
5520 data structure without incrementing reference counters.
5521 (Some of the existing 'get' functions increment a reference
5522 counter, some don't.)
5523 Similarly, 'set1' and 'add1' functions increase reference
5524 counters or duplicate objects.
5527 *) Allow for the possibility of temp RSA key generation failure:
5528 the code used to assume it always worked and crashed on failure.
5531 *) Fix potential buffer overrun problem in BIO_printf().
5532 [Ulf Möller, using public domain code by Patrick Powell; problem
5533 pointed out by David Sacerdote <das33@cornell.edu>]
5535 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
5536 RAND_egd() and RAND_status(). In the command line application,
5537 the EGD socket can be specified like a seed file using RANDFILE
5541 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
5542 Some CAs (e.g. Verisign) distribute certificates in this form.
5545 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
5546 list to exclude them. This means that no special compilation option
5547 is needed to use anonymous DH: it just needs to be included in the
5551 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
5552 EVP_MD_type. The old functionality is available in a new macro called
5553 EVP_MD_md(). Change code that uses it and update docs.
5556 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
5557 where the 'void *' argument is replaced by a function pointer argument.
5558 Previously 'void *' was abused to point to functions, which works on
5559 many platforms, but is not correct. As these functions are usually
5560 called by macros defined in OpenSSL header files, most source code
5561 should work without changes.
5564 *) <openssl/opensslconf.h> (which is created by Configure) now contains
5565 sections with information on -D... compiler switches used for
5566 compiling the library so that applications can see them. To enable
5567 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
5568 must be defined. E.g.,
5569 #define OPENSSL_ALGORITHM_DEFINES
5570 #include <openssl/opensslconf.h>
5571 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
5572 [Richard Levitte, Ulf and Bodo Möller]
5574 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
5578 *) Change the 'other' type in certificate aux info to a STACK_OF
5579 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
5580 the required ASN1 format: arbitrary types determined by an OID.
5583 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
5584 argument to 'req'. This is not because the function is newer or
5585 better than others it just uses the work 'NEW' in the certificate
5586 request header lines. Some software needs this.
5589 *) Reorganise password command line arguments: now passwords can be
5590 obtained from various sources. Delete the PEM_cb function and make
5591 it the default behaviour: i.e. if the callback is NULL and the
5592 usrdata argument is not NULL interpret it as a null terminated pass
5593 phrase. If usrdata and the callback are NULL then the pass phrase
5594 is prompted for as usual.
5597 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
5598 the support is automatically enabled. The resulting binaries will
5599 autodetect the card and use it if present.
5600 [Ben Laurie and Compaq Inc.]
5602 *) Work around for Netscape hang bug. This sends certificate request
5603 and server done in one record. Since this is perfectly legal in the
5604 SSL/TLS protocol it isn't a "bug" option and is on by default. See
5605 the bugs/SSLv3 entry for more info.
5608 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
5611 *) Add -rand argument to smime and pkcs12 applications and read/write
5615 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
5618 *) Add command line password options to the remaining applications.
5621 *) Bug fix for BN_div_recp() for numerators with an even number of
5625 *) More tests in bntest.c, and changed test_bn output.
5628 *) ./config recognizes MacOS X now.
5631 *) Bug fix for BN_div() when the first words of num and divsor are
5632 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
5635 *) Add support for various broken PKCS#8 formats, and command line
5636 options to produce them.
5639 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
5640 get temporary BIGNUMs from a BN_CTX.
5643 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
5647 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
5648 include a #define from the old name to the new. The original intent
5649 was that statically linked binaries could for example just call
5650 SSLeay_add_all_ciphers() to just add ciphers to the table and not
5651 link with digests. This never worked becayse SSLeay_add_all_digests()
5652 and SSLeay_add_all_ciphers() were in the same source file so calling
5653 one would link with the other. They are now in separate source files.
5656 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
5659 *) Use a less unusual form of the Miller-Rabin primality test (it used
5660 a binary algorithm for exponentiation integrated into the Miller-Rabin
5661 loop, our standard modexp algorithms are faster).
5664 *) Support for the EBCDIC character set completed.
5665 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
5667 *) Source code cleanups: use const where appropriate, eliminate casts,
5668 use void * instead of char * in lhash.
5671 *) Bugfix: ssl3_send_server_key_exchange was not restartable
5672 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
5673 this the server could overwrite ephemeral keys that the client
5677 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
5678 using 50 iterations of the Rabin-Miller test.
5680 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
5681 iterations of the Rabin-Miller test as required by the appendix
5682 to FIPS PUB 186[-1]) instead of DSA_is_prime.
5683 As BN_is_prime_fasttest includes trial division, DSA parameter
5684 generation becomes much faster.
5686 This implies a change for the callback functions in DSA_is_prime
5687 and DSA_generate_parameters: The callback function is called once
5688 for each positive witness in the Rabin-Miller test, not just
5689 occasionally in the inner loop; and the parameters to the
5690 callback function now provide an iteration count for the outer
5691 loop rather than for the current invocation of the inner loop.
5692 DSA_generate_parameters additionally can call the callback
5693 function with an 'iteration count' of -1, meaning that a
5694 candidate has passed the trial division test (when q is generated
5695 from an application-provided seed, trial division is skipped).
5698 *) New function BN_is_prime_fasttest that optionally does trial
5699 division before starting the Rabin-Miller test and has
5700 an additional BN_CTX * argument (whereas BN_is_prime always
5701 has to allocate at least one BN_CTX).
5702 'callback(1, -1, cb_arg)' is called when a number has passed the
5703 trial division stage.
5706 *) Fix for bug in CRL encoding. The validity dates weren't being handled
5710 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
5713 *) New function BN_pseudo_rand().
5716 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
5717 bignum version of BN_from_montgomery() with the working code from
5718 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
5722 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
5723 made it impossible to use the same SSL_SESSION data structure in
5724 SSL2 clients in multiple threads.
5727 *) The return value of RAND_load_file() no longer counts bytes obtained
5728 by stat(). RAND_load_file(..., -1) is new and uses the complete file
5729 to seed the PRNG (previously an explicit byte count was required).
5730 [Ulf Möller, Bodo Möller]
5732 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
5733 used (char *) instead of (void *) and had casts all over the place.
5736 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
5739 *) Retain source code compatibility for BN_prime_checks macro:
5740 BN_is_prime(..., BN_prime_checks, ...) now uses
5741 BN_prime_checks_for_size to determine the appropriate number of
5742 Rabin-Miller iterations.
5745 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
5746 DH_CHECK_P_NOT_SAFE_PRIME.
5747 (Check if this is true? OpenPGP calls them "strong".)
5750 *) Merge the functionality of "dh" and "gendh" programs into a new program
5751 "dhparam". The old programs are retained for now but will handle DH keys
5752 (instead of parameters) in future.
5755 *) Make the ciphers, s_server and s_client programs check the return values
5756 when a new cipher list is set.
5759 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
5760 ciphers. Before when the 56bit ciphers were enabled the sorting was
5763 The syntax for the cipher sorting has been extended to support sorting by
5764 cipher-strength (using the strength_bits hard coded in the tables).
5765 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
5767 Fix a bug in the cipher-command parser: when supplying a cipher command
5768 string with an "undefined" symbol (neither command nor alphanumeric
5769 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
5770 an error is flagged.
5772 Due to the strength-sorting extension, the code of the
5773 ssl_create_cipher_list() function was completely rearranged. I hope that
5774 the readability was also increased :-)
5775 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5777 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
5778 for the first serial number and places 2 in the serial number file. This
5779 avoids problems when the root CA is created with serial number zero and
5780 the first user certificate has the same issuer name and serial number
5784 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
5785 the new code. Add documentation for this stuff.
5788 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
5789 X509_*() to X509at_*() on the grounds that they don't handle X509
5790 structures and behave in an analagous way to the X509v3 functions:
5791 they shouldn't be called directly but wrapper functions should be used
5794 So we also now have some wrapper functions that call the X509at functions
5795 when passed certificate requests. (TO DO: similar things can be done with
5796 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
5797 things. Some of these need some d2i or i2d and print functionality
5798 because they handle more complex structures.)
5801 *) Add missing #ifndefs that caused missing symbols when building libssl
5802 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
5803 NO_RSA in ssl/s2*.c.
5804 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
5806 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
5807 has a return value which indicates the quality of the random data
5808 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
5809 error queue. New function RAND_pseudo_bytes() generates output that is
5810 guaranteed to be unique but not unpredictable. RAND_add is like
5811 RAND_seed, but takes an extra argument for an entropy estimate
5812 (RAND_seed always assumes full entropy).
5815 *) Do more iterations of Rabin-Miller probable prime test (specifically,
5816 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
5817 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
5818 in crypto/bn/bn_prime.c for the complete table). This guarantees a
5819 false-positive rate of at most 2^-80 for random input.
5822 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
5825 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
5826 in the 0.9.5 release), this returns the chain
5827 from an X509_CTX structure with a dup of the stack and all
5828 the X509 reference counts upped: so the stack will exist
5829 after X509_CTX_cleanup() has been called. Modify pkcs12.c
5832 Also make SSL_SESSION_print() print out the verify return
5836 *) Add manpage for the pkcs12 command. Also change the default
5837 behaviour so MAC iteration counts are used unless the new
5838 -nomaciter option is used. This improves file security and
5839 only older versions of MSIE (4.0 for example) need it.
5842 *) Honor the no-xxx Configure options when creating .DEF files.
5845 *) Add PKCS#10 attributes to field table: challengePassword,
5846 unstructuredName and unstructuredAddress. These are taken from
5847 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
5848 international characters are used.
5850 More changes to X509_ATTRIBUTE code: allow the setting of types
5851 based on strings. Remove the 'loc' parameter when adding
5852 attributes because these will be a SET OF encoding which is sorted
5856 *) Initial changes to the 'req' utility to allow request generation
5857 automation. This will allow an application to just generate a template
5858 file containing all the field values and have req construct the
5861 Initial support for X509_ATTRIBUTE handling. Stacks of these are
5862 used all over the place including certificate requests and PKCS#7
5863 structures. They are currently handled manually where necessary with
5864 some primitive wrappers for PKCS#7. The new functions behave in a
5865 manner analogous to the X509 extension functions: they allow
5866 attributes to be looked up by NID and added.
5868 Later something similar to the X509V3 code would be desirable to
5869 automatically handle the encoding, decoding and printing of the
5870 more complex types. The string types like challengePassword can
5871 be handled by the string table functions.
5873 Also modified the multi byte string table handling. Now there is
5874 a 'global mask' which masks out certain types. The table itself
5875 can use the flag STABLE_NO_MASK to ignore the mask setting: this
5876 is useful when for example there is only one permissible type
5877 (as in countryName) and using the mask might result in no valid
5881 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
5882 SSL_get_peer_finished to allow applications to obtain the latest
5883 Finished messages sent to the peer or expected from the peer,
5884 respectively. (SSL_get_peer_finished is usually the Finished message
5885 actually received from the peer, otherwise the protocol will be aborted.)
5887 As the Finished message are message digests of the complete handshake
5888 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
5889 be used for external authentication procedures when the authentication
5890 provided by SSL/TLS is not desired or is not enough.
5893 *) Enhanced support for Alpha Linux is added. Now ./config checks if
5894 the host supports BWX extension and if Compaq C is present on the
5895 $PATH. Just exploiting of the BWX extension results in 20-30%
5896 performance kick for some algorithms, e.g. DES and RC4 to mention
5897 a couple. Compaq C in turn generates ~20% faster code for MD5 and
5901 *) Add support for MS "fast SGC". This is arguably a violation of the
5902 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
5903 weak crypto and after checking the certificate is SGC a second one
5904 with strong crypto. MS SGC stops the first handshake after receiving
5905 the server certificate message and sends a second client hello. Since
5906 a server will typically do all the time consuming operations before
5907 expecting any further messages from the client (server key exchange
5908 is the most expensive) there is little difference between the two.
5910 To get OpenSSL to support MS SGC we have to permit a second client
5911 hello message after we have sent server done. In addition we have to
5912 reset the MAC if we do get this second client hello.
5915 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
5916 if a DER encoded private key is RSA or DSA traditional format. Changed
5917 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
5918 format DER encoded private key. Newer code should use PKCS#8 format which
5919 has the key type encoded in the ASN1 structure. Added DER private key
5920 support to pkcs8 application.
5923 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
5924 ciphersuites has been selected (as required by the SSL 3/TLS 1
5925 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
5926 is set, we interpret this as a request to violate the specification
5927 (the worst that can happen is a handshake failure, and 'correct'
5928 behaviour would result in a handshake failure anyway).
5931 *) In SSL_CTX_add_session, take into account that there might be multiple
5932 SSL_SESSION structures with the same session ID (e.g. when two threads
5933 concurrently obtain them from an external cache).
5934 The internal cache can handle only one SSL_SESSION with a given ID,
5935 so if there's a conflict, we now throw out the old one to achieve
5939 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
5940 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
5941 some routines that use cipher OIDs: some ciphers do not have OIDs
5942 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
5946 *) Simplify the trust setting structure and code. Now we just have
5947 two sequences of OIDs for trusted and rejected settings. These will
5948 typically have values the same as the extended key usage extension
5949 and any application specific purposes.
5951 The trust checking code now has a default behaviour: it will just
5952 check for an object with the same NID as the passed id. Functions can
5953 be provided to override either the default behaviour or the behaviour
5954 for a given id. SSL client, server and email already have functions
5955 in place for compatibility: they check the NID and also return "trusted"
5956 if the certificate is self signed.
5959 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
5960 traditional format into an EVP_PKEY structure.
5963 *) Add a password callback function PEM_cb() which either prompts for
5964 a password if usr_data is NULL or otherwise assumes it is a null
5965 terminated password. Allow passwords to be passed on command line
5966 environment or config files in a few more utilities.
5969 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
5970 keys. Add some short names for PKCS#8 PBE algorithms and allow them
5971 to be specified on the command line for the pkcs8 and pkcs12 utilities.
5972 Update documentation.
5975 *) Support for ASN1 "NULL" type. This could be handled before by using
5976 ASN1_TYPE but there wasn't any function that would try to read a NULL
5977 and produce an error if it couldn't. For compatibility we also have
5978 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
5979 don't allocate anything because they don't need to.
5982 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
5984 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
5986 *) Rebuild of the memory allocation routines used by OpenSSL code and
5987 possibly others as well. The purpose is to make an interface that
5988 provide hooks so anyone can build a separate set of allocation and
5989 deallocation routines to be used by OpenSSL, for example memory
5990 pool implementations, or something else, which was previously hard
5991 since Malloc(), Realloc() and Free() were defined as macros having
5992 the values malloc, realloc and free, respectively (except for Win32
5993 compilations). The same is provided for memory debugging code.
5994 OpenSSL already comes with functionality to find memory leaks, but
5995 this gives people a chance to debug other memory problems.
5997 With these changes, a new set of functions and macros have appeared:
5999 CRYPTO_set_mem_debug_functions() [F]
6000 CRYPTO_get_mem_debug_functions() [F]
6001 CRYPTO_dbg_set_options() [F]
6002 CRYPTO_dbg_get_options() [F]
6003 CRYPTO_malloc_debug_init() [M]
6005 The memory debug functions are NULL by default, unless the library
6006 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
6007 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
6008 gives the standard debugging functions that come with OpenSSL) or
6009 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
6010 provided by the library user) must be used. When the standard
6011 debugging functions are used, CRYPTO_dbg_set_options can be used to
6012 request additional information:
6013 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
6014 the CRYPTO_MDEBUG_xxx macro when compiling the library.
6016 Also, things like CRYPTO_set_mem_functions will always give the
6017 expected result (the new set of functions is used for allocation
6018 and deallocation) at all times, regardless of platform and compiler
6021 To finish it up, some functions that were never use in any other
6022 way than through macros have a new API and new semantic:
6025 CRYPTO_dbg_realloc()
6028 All macros of value have retained their old syntax.
6029 [Richard Levitte and Bodo Moeller]
6031 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
6032 ordering of SMIMECapabilities wasn't in "strength order" and there
6033 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
6037 *) Some ASN1 types with illegal zero length encoding (INTEGER,
6038 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
6039 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
6041 *) Merge in my S/MIME library for OpenSSL. This provides a simple
6042 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
6043 functionality to handle multipart/signed properly) and a utility
6044 called 'smime' to call all this stuff. This is based on code I
6045 originally wrote for Celo who have kindly allowed it to be
6046 included in OpenSSL.
6049 *) Add variants des_set_key_checked and des_set_key_unchecked of
6050 des_set_key (aka des_key_sched). Global variable des_check_key
6051 decides which of these is called by des_set_key; this way
6052 des_check_key behaves as it always did, but applications and
6053 the library itself, which was buggy for des_check_key == 1,
6054 have a cleaner way to pick the version they need.
6057 *) New function PKCS12_newpass() which changes the password of a
6061 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
6062 dynamic mix. In both cases the ids can be used as an index into the
6063 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
6064 functions so they accept a list of the field values and the
6065 application doesn't need to directly manipulate the X509_TRUST
6069 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
6073 *) Modify the way the V3 extension code looks up extensions. This now
6074 works in a similar way to the object code: we have some "standard"
6075 extensions in a static table which is searched with OBJ_bsearch()
6076 and the application can add dynamic ones if needed. The file
6077 crypto/x509v3/ext_dat.h now has the info: this file needs to be
6078 updated whenever a new extension is added to the core code and kept
6079 in ext_nid order. There is a simple program 'tabtest.c' which checks
6080 this. New extensions are not added too often so this file can readily
6081 be maintained manually.
6083 There are two big advantages in doing things this way. The extensions
6084 can be looked up immediately and no longer need to be "added" using
6085 X509V3_add_standard_extensions(): this function now does nothing.
6086 [Side note: I get *lots* of email saying the extension code doesn't
6087 work because people forget to call this function]
6088 Also no dynamic allocation is done unless new extensions are added:
6089 so if we don't add custom extensions there is no need to call
6090 X509V3_EXT_cleanup().
6093 *) Modify enc utility's salting as follows: make salting the default. Add a
6094 magic header, so unsalted files fail gracefully instead of just decrypting
6095 to garbage. This is because not salting is a big security hole, so people
6096 should be discouraged from doing it.
6099 *) Fixes and enhancements to the 'x509' utility. It allowed a message
6100 digest to be passed on the command line but it only used this
6101 parameter when signing a certificate. Modified so all relevant
6102 operations are affected by the digest parameter including the
6103 -fingerprint and -x509toreq options. Also -x509toreq choked if a
6104 DSA key was used because it didn't fix the digest.
6107 *) Initial certificate chain verify code. Currently tests the untrusted
6108 certificates for consistency with the verify purpose (which is set
6109 when the X509_STORE_CTX structure is set up) and checks the pathlength.
6111 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
6112 this is because it will reject chains with invalid extensions whereas
6113 every previous version of OpenSSL and SSLeay made no checks at all.
6115 Trust code: checks the root CA for the relevant trust settings. Trust
6116 settings have an initial value consistent with the verify purpose: e.g.
6117 if the verify purpose is for SSL client use it expects the CA to be
6118 trusted for SSL client use. However the default value can be changed to
6119 permit custom trust settings: one example of this would be to only trust
6120 certificates from a specific "secure" set of CAs.
6122 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
6123 which should be used for version portability: especially since the
6124 verify structure is likely to change more often now.
6126 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
6127 to set them. If not set then assume SSL clients will verify SSL servers
6130 Two new options to the verify program: -untrusted allows a set of
6131 untrusted certificates to be passed in and -purpose which sets the
6132 intended purpose of the certificate. If a purpose is set then the
6133 new chain verify code is used to check extension consistency.
6136 *) Support for the authority information access extension.
6139 *) Modify RSA and DSA PEM read routines to transparently handle
6140 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
6141 public keys in a format compatible with certificate
6142 SubjectPublicKeyInfo structures. Unfortunately there were already
6143 functions called *_PublicKey_* which used various odd formats so
6144 these are retained for compatibility: however the DSA variants were
6145 never in a public release so they have been deleted. Changed dsa/rsa
6146 utilities to handle the new format: note no releases ever handled public
6147 keys so we should be OK.
6149 The primary motivation for this change is to avoid the same fiasco
6150 that dogs private keys: there are several incompatible private key
6151 formats some of which are standard and some OpenSSL specific and
6152 require various evil hacks to allow partial transparent handling and
6153 even then it doesn't work with DER formats. Given the option anything
6154 other than PKCS#8 should be dumped: but the other formats have to
6155 stay in the name of compatibility.
6157 With public keys and the benefit of hindsight one standard format
6158 is used which works with EVP_PKEY, RSA or DSA structures: though
6159 it clearly returns an error if you try to read the wrong kind of key.
6161 Added a -pubkey option to the 'x509' utility to output the public key.
6162 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
6163 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
6164 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
6165 that do the same as the EVP_PKEY_assign_*() except they up the
6166 reference count of the added key (they don't "swallow" the
6170 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
6171 CRLs would fail if the file contained no certificates or no CRLs:
6172 added a new function to read in both types and return the number
6173 read: this means that if none are read it will be an error. The
6174 DER versions of the certificate and CRL reader would always fail
6175 because it isn't possible to mix certificates and CRLs in DER format
6176 without choking one or the other routine. Changed this to just read
6177 a certificate: this is the best we can do. Also modified the code
6178 in apps/verify.c to take notice of return codes: it was previously
6179 attempting to read in certificates from NULL pointers and ignoring
6180 any errors: this is one reason why the cert and CRL reader seemed
6181 to work. It doesn't check return codes from the default certificate
6182 routines: these may well fail if the certificates aren't installed.
6185 *) Code to support otherName option in GeneralName.
6188 *) First update to verify code. Change the verify utility
6189 so it warns if it is passed a self signed certificate:
6190 for consistency with the normal behaviour. X509_verify
6191 has been modified to it will now verify a self signed
6192 certificate if *exactly* the same certificate appears
6193 in the store: it was previously impossible to trust a
6194 single self signed certificate. This means that:
6195 openssl verify ss.pem
6196 now gives a warning about a self signed certificate but
6197 openssl verify -CAfile ss.pem ss.pem
6201 *) For servers, store verify_result in SSL_SESSION data structure
6202 (and add it to external session representation).
6203 This is needed when client certificate verifications fails,
6204 but an application-provided verification callback (set by
6205 SSL_CTX_set_cert_verify_callback) allows accepting the session
6206 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
6207 but returns 1): When the session is reused, we have to set
6208 ssl->verify_result to the appropriate error code to avoid
6210 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
6212 *) Fix a bug in the new PKCS#7 code: it didn't consider the
6213 case in PKCS7_dataInit() where the signed PKCS7 structure
6214 didn't contain any existing data because it was being created.
6215 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
6217 *) Add a salt to the key derivation routines in enc.c. This
6218 forms the first 8 bytes of the encrypted file. Also add a
6219 -S option to allow a salt to be input on the command line.
6222 *) New function X509_cmp(). Oddly enough there wasn't a function
6223 to compare two certificates. We do this by working out the SHA1
6224 hash and comparing that. X509_cmp() will be needed by the trust
6228 *) SSL_get1_session() is like SSL_get_session(), but increments
6229 the reference count in the SSL_SESSION returned.
6230 [Geoff Thorpe <geoff@eu.c2.net>]
6232 *) Fix for 'req': it was adding a null to request attributes.
6233 Also change the X509_LOOKUP and X509_INFO code to handle
6234 certificate auxiliary information.
6237 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
6241 *) Add the possibility to add extra information to the memory leak
6242 detecting output, to form tracebacks, showing from where each
6243 allocation was originated: CRYPTO_push_info("constant string") adds
6244 the string plus current file name and line number to a per-thread
6245 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
6246 is like calling CYRPTO_pop_info() until the stack is empty.
6247 Also updated memory leak detection code to be multi-thread-safe.
6250 *) Add options -text and -noout to pkcs7 utility and delete the
6251 encryption options which never did anything. Update docs.
6254 *) Add options to some of the utilities to allow the pass phrase
6255 to be included on either the command line (not recommended on
6256 OSes like Unix) or read from the environment. Update the
6257 manpages and fix a few bugs.
6260 *) Add a few manpages for some of the openssl commands.
6263 *) Fix the -revoke option in ca. It was freeing up memory twice,
6264 leaking and not finding already revoked certificates.
6267 *) Extensive changes to support certificate auxiliary information.
6268 This involves the use of X509_CERT_AUX structure and X509_AUX
6269 functions. An X509_AUX function such as PEM_read_X509_AUX()
6270 can still read in a certificate file in the usual way but it
6271 will also read in any additional "auxiliary information". By
6272 doing things this way a fair degree of compatibility can be
6273 retained: existing certificates can have this information added
6274 using the new 'x509' options.
6276 Current auxiliary information includes an "alias" and some trust
6277 settings. The trust settings will ultimately be used in enhanced
6278 certificate chain verification routines: currently a certificate
6279 can only be trusted if it is self signed and then it is trusted
6283 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
6284 The problem was that one of the replacement routines had not been working
6285 since SSLeay releases. For now the offending routine has been replaced
6286 with non-optimised assembler. Even so, this now gives around 95%
6287 performance improvement for 1024 bit RSA signs.
6290 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
6291 handling. Most clients have the effective key size in bits equal to
6292 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
6293 A few however don't do this and instead use the size of the decrypted key
6294 to determine the RC2 key length and the AlgorithmIdentifier to determine
6295 the effective key length. In this case the effective key length can still
6296 be 40 bits but the key length can be 168 bits for example. This is fixed
6297 by manually forcing an RC2 key into the EVP_PKEY structure because the
6298 EVP code can't currently handle unusual RC2 key sizes: it always assumes
6299 the key length and effective key length are equal.
6302 *) Add a bunch of functions that should simplify the creation of
6303 X509_NAME structures. Now you should be able to do:
6304 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
6305 and have it automatically work out the correct field type and fill in
6306 the structures. The more adventurous can try:
6307 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
6308 and it will (hopefully) work out the correct multibyte encoding.
6311 *) Change the 'req' utility to use the new field handling and multibyte
6312 copy routines. Before the DN field creation was handled in an ad hoc
6313 way in req, ca, and x509 which was rather broken and didn't support
6314 BMPStrings or UTF8Strings. Since some software doesn't implement
6315 BMPStrings or UTF8Strings yet, they can be enabled using the config file
6316 using the dirstring_type option. See the new comment in the default
6317 openssl.cnf for more info.
6320 *) Make crypto/rand/md_rand.c more robust:
6321 - Assure unique random numbers after fork().
6322 - Make sure that concurrent threads access the global counter and
6323 md serializably so that we never lose entropy in them
6324 or use exactly the same state in multiple threads.
6325 Access to the large state is not always serializable because
6326 the additional locking could be a performance killer, and
6327 md should be large enough anyway.
6330 *) New file apps/app_rand.c with commonly needed functionality
6331 for handling the random seed file.
6333 Use the random seed file in some applications that previously did not:
6335 dsaparam -genkey (which also ignored its '-rand' option),
6338 x509 (when signing).
6339 Except on systems with /dev/urandom, it is crucial to have a random
6340 seed file at least for key creation, DSA signing, and for DH exchanges;
6341 for RSA signatures we could do without one.
6343 gendh and gendsa (unlike genrsa) used to read only the first byte
6344 of each file listed in the '-rand' option. The function as previously
6345 found in genrsa is now in app_rand.c and is used by all programs
6346 that support '-rand'.
6349 *) In RAND_write_file, use mode 0600 for creating files;
6350 don't just chmod when it may be too late.
6353 *) Report an error from X509_STORE_load_locations
6354 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
6357 *) New function ASN1_mbstring_copy() this copies a string in either
6358 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
6359 into an ASN1_STRING type. A mask of permissible types is passed
6360 and it chooses the "minimal" type to use or an error if not type
6364 *) Add function equivalents to the various macros in asn1.h. The old
6365 macros are retained with an M_ prefix. Code inside the library can
6366 use the M_ macros. External code (including the openssl utility)
6367 should *NOT* in order to be "shared library friendly".
6370 *) Add various functions that can check a certificate's extensions
6371 to see if it usable for various purposes such as SSL client,
6372 server or S/MIME and CAs of these types. This is currently
6373 VERY EXPERIMENTAL but will ultimately be used for certificate chain
6374 verification. Also added a -purpose flag to x509 utility to
6375 print out all the purposes.
6378 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
6382 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
6383 for, obtain and decode and extension and obtain its critical flag.
6384 This allows all the necessary extension code to be handled in a
6385 single function call.
6388 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
6389 platforms. See crypto/rc4/rc4_enc.c for further details.
6392 *) New -noout option to asn1parse. This causes no output to be produced
6393 its main use is when combined with -strparse and -out to extract data
6394 from a file (which may not be in ASN.1 format).
6397 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
6398 when producing the local key id.
6399 [Richard Levitte <levitte@stacken.kth.se>]
6401 *) New option -dhparam in s_server. This allows a DH parameter file to be
6402 stated explicitly. If it is not stated then it tries the first server
6403 certificate file. The previous behaviour hard coded the filename
6407 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
6408 a public key to be input or output. For example:
6409 openssl rsa -in key.pem -pubout -out pubkey.pem
6410 Also added necessary DSA public key functions to handle this.
6413 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
6414 in the message. This was handled by allowing
6415 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
6416 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
6418 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
6419 to the end of the strings whereas this didn't. This would cause problems
6420 if strings read with d2i_ASN1_bytes() were later modified.
6421 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
6423 *) Fix for base64 decode bug. When a base64 bio reads only one line of
6424 data and it contains EOF it will end up returning an error. This is
6425 caused by input 46 bytes long. The cause is due to the way base64
6426 BIOs find the start of base64 encoded data. They do this by trying a
6427 trial decode on each line until they find one that works. When they
6428 do a flag is set and it starts again knowing it can pass all the
6429 data directly through the decoder. Unfortunately it doesn't reset
6430 the context it uses. This means that if EOF is reached an attempt
6431 is made to pass two EOFs through the context and this causes the
6432 resulting error. This can also cause other problems as well. As is
6433 usual with these problems it takes *ages* to find and the fix is
6434 trivial: move one line.
6435 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
6437 *) Ugly workaround to get s_client and s_server working under Windows. The
6438 old code wouldn't work because it needed to select() on sockets and the
6439 tty (for keypresses and to see if data could be written). Win32 only
6440 supports select() on sockets so we select() with a 1s timeout on the
6441 sockets and then see if any characters are waiting to be read, if none
6442 are present then we retry, we also assume we can always write data to
6443 the tty. This isn't nice because the code then blocks until we've
6444 received a complete line of data and it is effectively polling the
6445 keyboard at 1s intervals: however it's quite a bit better than not
6446 working at all :-) A dedicated Windows application might handle this
6447 with an event loop for example.
6450 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
6451 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
6452 will be called when RSA_sign() and RSA_verify() are used. This is useful
6453 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
6454 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
6455 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
6456 This necessitated the support of an extra signature type NID_md5_sha1
6457 for SSL signatures and modifications to the SSL library to use it instead
6458 of calling RSA_public_decrypt() and RSA_private_encrypt().
6461 *) Add new -verify -CAfile and -CApath options to the crl program, these
6462 will lookup a CRL issuers certificate and verify the signature in a
6463 similar way to the verify program. Tidy up the crl program so it
6464 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
6465 less strict. It will now permit CRL extensions even if it is not
6466 a V2 CRL: this will allow it to tolerate some broken CRLs.
6469 *) Initialize all non-automatic variables each time one of the openssl
6470 sub-programs is started (this is necessary as they may be started
6471 multiple times from the "OpenSSL>" prompt).
6472 [Lennart Bang, Bodo Moeller]
6474 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
6475 removing all other RSA functionality (this is what NO_RSA does). This
6476 is so (for example) those in the US can disable those operations covered
6477 by the RSA patent while allowing storage and parsing of RSA keys and RSA
6481 *) Non-copying interface to BIO pairs.
6482 (still largely untested)
6485 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
6486 ASCII string. This was handled independently in various places before.
6489 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
6490 UTF8 strings a character at a time.
6493 *) Use client_version from client hello to select the protocol
6494 (s23_srvr.c) and for RSA client key exchange verification
6495 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
6498 *) Add various utility functions to handle SPKACs, these were previously
6499 handled by poking round in the structure internals. Added new function
6500 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
6501 print, verify and generate SPKACs. Based on an original idea from
6502 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
6505 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
6508 *) Allow the config file extension section to be overwritten on the
6509 command line. Based on an original idea from Massimiliano Pala
6510 <madwolf@comune.modena.it>. The new option is called -extensions
6511 and can be applied to ca, req and x509. Also -reqexts to override
6512 the request extensions in req and -crlexts to override the crl extensions
6516 *) Add new feature to the SPKAC handling in ca. Now you can include
6517 the same field multiple times by preceding it by "XXXX." for example:
6520 this is the same syntax as used in the req config file.
6523 *) Allow certificate extensions to be added to certificate requests. These
6524 are specified in a 'req_extensions' option of the req section of the
6525 config file. They can be printed out with the -text option to req but
6526 are otherwise ignored at present.
6529 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
6530 data read consists of only the final block it would not decrypted because
6531 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
6532 A misplaced 'break' also meant the decrypted final block might not be
6533 copied until the next read.
6536 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
6537 a few extra parameters to the DH structure: these will be useful if
6538 for example we want the value of 'q' or implement X9.42 DH.
6541 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
6542 provides hooks that allow the default DSA functions or functions on a
6543 "per key" basis to be replaced. This allows hardware acceleration and
6544 hardware key storage to be handled without major modification to the
6545 library. Also added low level modexp hooks and CRYPTO_EX structure and
6546 associated functions.
6549 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
6550 as "read only": it can't be written to and the buffer it points to will
6551 not be freed. Reading from a read only BIO is much more efficient than
6552 a normal memory BIO. This was added because there are several times when
6553 an area of memory needs to be read from a BIO. The previous method was
6554 to create a memory BIO and write the data to it, this results in two
6555 copies of the data and an O(n^2) reading algorithm. There is a new
6556 function BIO_new_mem_buf() which creates a read only memory BIO from
6557 an area of memory. Also modified the PKCS#7 routines to use read only
6561 *) Bugfix: ssl23_get_client_hello did not work properly when called in
6562 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
6563 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
6564 but a retry condition occured while trying to read the rest.
6567 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
6568 NID_pkcs7_encrypted by default: this was wrong since this should almost
6569 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
6570 the encrypted data type: this is a more sensible place to put it and it
6571 allows the PKCS#12 code to be tidied up that duplicated this
6575 *) Changed obj_dat.pl script so it takes its input and output files on
6576 the command line. This should avoid shell escape redirection problems
6580 *) Initial support for certificate extension requests, these are included
6581 in things like Xenroll certificate requests. Included functions to allow
6582 extensions to be obtained and added.
6585 *) -crlf option to s_client and s_server for sending newlines as
6586 CRLF (as required by many protocols).
6589 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
6591 *) Install libRSAglue.a when OpenSSL is built with RSAref.
6592 [Ralf S. Engelschall]
6594 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
6595 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
6597 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
6601 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
6602 DH parameters/keys (q is lost during that conversion, but the resulting
6603 DH parameters contain its length).
6605 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
6606 much faster than DH_generate_parameters (which creates parameters
6607 where p = 2*q + 1), and also the smaller q makes DH computations
6608 much more efficient (160-bit exponentiation instead of 1024-bit
6609 exponentiation); so this provides a convenient way to support DHE
6610 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
6611 utter importance to use
6612 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6614 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6615 when such DH parameters are used, because otherwise small subgroup
6616 attacks may become possible!
6619 *) Avoid memory leak in i2d_DHparams.
6622 *) Allow the -k option to be used more than once in the enc program:
6623 this allows the same encrypted message to be read by multiple recipients.
6626 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
6627 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
6628 it will always use the numerical form of the OID, even if it has a short
6632 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
6633 method only got called if p,q,dmp1,dmq1,iqmp components were present,
6634 otherwise bn_mod_exp was called. In the case of hardware keys for example
6635 no private key components need be present and it might store extra data
6636 in the RSA structure, which cannot be accessed from bn_mod_exp.
6637 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
6638 private key operations.
6641 *) Added support for SPARC Linux.
6644 *) pem_password_cb function type incompatibly changed from
6645 typedef int pem_password_cb(char *buf, int size, int rwflag);
6647 ....(char *buf, int size, int rwflag, void *userdata);
6648 so that applications can pass data to their callbacks:
6649 The PEM[_ASN1]_{read,write}... functions and macros now take an
6650 additional void * argument, which is just handed through whenever
6651 the password callback is called.
6652 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
6654 New function SSL_CTX_set_default_passwd_cb_userdata.
6656 Compatibility note: As many C implementations push function arguments
6657 onto the stack in reverse order, the new library version is likely to
6658 interoperate with programs that have been compiled with the old
6659 pem_password_cb definition (PEM_whatever takes some data that
6660 happens to be on the stack as its last argument, and the callback
6661 just ignores this garbage); but there is no guarantee whatsoever that
6664 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
6665 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
6666 problems not only on Windows, but also on some Unix platforms.
6667 To avoid problematic command lines, these definitions are now in an
6668 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
6669 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
6672 *) MIPS III/IV assembler module is reimplemented.
6675 *) More DES library cleanups: remove references to srand/rand and
6676 delete an unused file.
6679 *) Add support for the the free Netwide assembler (NASM) under Win32,
6680 since not many people have MASM (ml) and it can be hard to obtain.
6681 This is currently experimental but it seems to work OK and pass all
6682 the tests. Check out INSTALL.W32 for info.
6685 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
6686 without temporary keys kept an extra copy of the server key,
6687 and connections with temporary keys did not free everything in case
6691 *) New function RSA_check_key and new openssl rsa option -check
6692 for verifying the consistency of RSA keys.
6693 [Ulf Moeller, Bodo Moeller]
6695 *) Various changes to make Win32 compile work:
6696 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
6697 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
6698 comparison" warnings.
6699 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
6702 *) Add a debugging option to PKCS#5 v2 key generation function: when
6703 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
6704 derived keys are printed to stderr.
6707 *) Copy the flags in ASN1_STRING_dup().
6708 [Roman E. Pavlov <pre@mo.msk.ru>]
6710 *) The x509 application mishandled signing requests containing DSA
6711 keys when the signing key was also DSA and the parameters didn't match.
6713 It was supposed to omit the parameters when they matched the signing key:
6714 the verifying software was then supposed to automatically use the CA's
6715 parameters if they were absent from the end user certificate.
6717 Omitting parameters is no longer recommended. The test was also
6718 the wrong way round! This was probably due to unusual behaviour in
6719 EVP_cmp_parameters() which returns 1 if the parameters match.
6720 This meant that parameters were omitted when they *didn't* match and
6721 the certificate was useless. Certificates signed with 'ca' didn't have
6723 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
6725 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
6726 The interface is as follows:
6727 Applications can use
6728 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
6729 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
6730 "off" is now the default.
6731 The library internally uses
6732 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
6733 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
6734 to disable memory-checking temporarily.
6736 Some inconsistent states that previously were possible (and were
6737 even the default) are now avoided.
6739 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
6740 with each memory chunk allocated; this is occasionally more helpful
6741 than just having a counter.
6743 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
6745 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
6749 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
6750 which largely parallels "options", but is for changing API behaviour,
6751 whereas "options" are about protocol behaviour.
6752 Initial "mode" flags are:
6754 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
6755 a single record has been written.
6756 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
6757 retries use the same buffer location.
6758 (But all of the contents must be
6762 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
6765 *) Fix problems with no-hmac etc.
6766 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
6768 *) New functions RSA_get_default_method(), RSA_set_method() and
6769 RSA_get_method(). These allows replacement of RSA_METHODs without having
6770 to mess around with the internals of an RSA structure.
6773 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
6774 Also really enable memory leak checks in openssl.c and in some
6776 [Chad C. Mulligan, Bodo Moeller]
6778 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
6779 up the length of negative integers. This has now been simplified to just
6780 store the length when it is first determined and use it later, rather
6781 than trying to keep track of where data is copied and updating it to
6783 [Steve Henson, reported by Brien Wheeler
6784 <bwheeler@authentica-security.com>]
6786 *) Add a new function PKCS7_signatureVerify. This allows the verification
6787 of a PKCS#7 signature but with the signing certificate passed to the
6788 function itself. This contrasts with PKCS7_dataVerify which assumes the
6789 certificate is present in the PKCS#7 structure. This isn't always the
6790 case: certificates can be omitted from a PKCS#7 structure and be
6791 distributed by "out of band" means (such as a certificate database).
6794 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
6795 function prototypes in pem.h, also change util/mkdef.pl to add the
6796 necessary function names.
6799 *) mk1mf.pl (used by Windows builds) did not properly read the
6800 options set by Configure in the top level Makefile, and Configure
6801 was not even able to write more than one option correctly.
6802 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
6805 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
6806 file to be loaded from a BIO or FILE pointer. The BIO version will
6807 for example allow memory BIOs to contain config info.
6810 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
6811 Whoever hopes to achieve shared-library compatibility across versions
6812 must use this, not the compile-time macro.
6813 (Exercise 0.9.4: Which is the minimum library version required by
6815 Note: All this applies only to multi-threaded programs, others don't
6819 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
6820 through a BIO pair triggered the default case, i.e.
6821 SSLerr(...,SSL_R_UNKNOWN_STATE).
6824 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
6825 can use the SSL library even if none of the specific BIOs is
6829 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
6830 for the encoded length.
6831 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
6833 *) Add initial documentation of the X509V3 functions.
6836 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
6837 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
6838 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
6839 secure PKCS#8 private key format with a high iteration count.
6842 *) Fix determination of Perl interpreter: A perl or perl5
6843 _directory_ in $PATH was also accepted as the interpreter.
6844 [Ralf S. Engelschall]
6846 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
6847 wrong with it but it was very old and did things like calling
6848 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
6852 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
6853 to use the new extension code.
6856 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
6857 with macros. This should make it easier to change their form, add extra
6858 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
6862 *) Add to configuration table a new entry that can specify an alternative
6863 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
6864 according to Mark Crispin <MRC@Panda.COM>.
6868 *) DES CBC did not update the IV. Weird.
6871 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
6872 Changing the behaviour of the former might break existing programs --
6873 where IV updating is needed, des_ncbc_encrypt can be used.
6876 *) When bntest is run from "make test" it drives bc to check its
6877 calculations, as well as internally checking them. If an internal check
6878 fails, it needs to cause bc to give a non-zero result or make test carries
6879 on without noticing the failure. Fixed.
6882 *) DES library cleanups.
6885 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
6886 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
6887 ciphers. NOTE: although the key derivation function has been verified
6888 against some published test vectors it has not been extensively tested
6889 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
6893 *) Instead of "mkdir -p", which is not fully portable, use new
6894 Perl script "util/mkdir-p.pl".
6897 *) Rewrite the way password based encryption (PBE) is handled. It used to
6898 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
6899 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
6900 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
6901 the 'parameter' field of the AlgorithmIdentifier is passed to the
6902 underlying key generation function so it must do its own ASN1 parsing.
6903 This has also changed the EVP_PBE_CipherInit() function which now has a
6904 'parameter' argument instead of literal salt and iteration count values
6905 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
6908 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
6909 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
6910 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
6911 KEY" because this clashed with PKCS#8 unencrypted string. Since this
6912 value was just used as a "magic string" and not used directly its
6913 value doesn't matter.
6916 *) Introduce some semblance of const correctness to BN. Shame C doesn't
6920 *) "linux-sparc64" configuration (ultrapenguin).
6921 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
6922 "linux-sparc" configuration.
6923 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
6925 *) config now generates no-xxx options for missing ciphers.
6928 *) Support the EBCDIC character set (work in progress).
6929 File ebcdic.c not yet included because it has a different license.
6930 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6932 *) Support BS2000/OSD-POSIX.
6933 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6935 *) Make callbacks for key generation use void * instead of char *.
6938 *) Make S/MIME samples compile (not yet tested).
6941 *) Additional typesafe stacks.
6944 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
6948 Changes between 0.9.3 and 0.9.3a [29 May 1999]
6950 *) New configuration variant "sco5-gcc".
6952 *) Updated some demos.
6953 [Sean O Riordain, Wade Scholine]
6955 *) Add missing BIO_free at exit of pkcs12 application.
6958 *) Fix memory leak in conf.c.
6961 *) Updates for Win32 to assembler version of MD5.
6964 *) Set #! path to perl in apps/der_chop to where we found it
6965 instead of using a fixed path.
6968 *) SHA library changes for irix64-mips4-cc.
6971 *) Improvements for VMS support.
6975 Changes between 0.9.2b and 0.9.3 [24 May 1999]
6977 *) Bignum library bug fix. IRIX 6 passes "make test" now!
6978 This also avoids the problems with SC4.2 and unpatched SC5.
6979 [Andy Polyakov <appro@fy.chalmers.se>]
6981 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
6982 These are required because of the typesafe stack would otherwise break
6983 existing code. If old code used a structure member which used to be STACK
6984 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
6985 sk_num or sk_value it would produce an error because the num, data members
6986 are not present in STACK_OF. Now it just produces a warning. sk_set
6987 replaces the old method of assigning a value to sk_value
6988 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
6989 that does this will no longer work (and should use sk_set instead) but
6990 this could be regarded as a "questionable" behaviour anyway.
6993 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
6994 correctly handle encrypted S/MIME data.
6997 *) Change type of various DES function arguments from des_cblock
6998 (which means, in function argument declarations, pointer to char)
6999 to des_cblock * (meaning pointer to array with 8 char elements),
7000 which allows the compiler to do more typechecking; it was like
7001 that back in SSLeay, but with lots of ugly casts.
7003 Introduce new type const_des_cblock.
7006 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
7007 problems: find RecipientInfo structure that matches recipient certificate
7008 and initialise the ASN1 structures properly based on passed cipher.
7011 *) Belatedly make the BN tests actually check the results.
7014 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
7015 to and from BNs: it was completely broken. New compilation option
7016 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
7017 key elements as negative integers.
7020 *) Reorganize and speed up MD5.
7021 [Andy Polyakov <appro@fy.chalmers.se>]
7024 [Richard Levitte <richard@levitte.org>]
7026 *) New option -out to asn1parse to allow the parsed structure to be
7027 output to a file. This is most useful when combined with the -strparse
7028 option to examine the output of things like OCTET STRINGS.
7031 *) Make SSL library a little more fool-proof by not requiring any longer
7032 that SSL_set_{accept,connect}_state be called before
7033 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
7034 in many applications because usually everything *appeared* to work as
7035 intended anyway -- now it really works as intended).
7038 *) Move openssl.cnf out of lib/.
7041 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
7042 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
7043 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
7044 [Ralf S. Engelschall]
7046 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
7047 handle PKCS#7 enveloped data properly.
7048 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
7050 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
7051 copying pointers. The cert_st handling is changed by this in
7052 various ways (and thus what used to be known as ctx->default_cert
7053 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
7054 any longer when s->cert does not give us what we need).
7055 ssl_cert_instantiate becomes obsolete by this change.
7056 As soon as we've got the new code right (possibly it already is?),
7057 we have solved a couple of bugs of the earlier code where s->cert
7058 was used as if it could not have been shared with other SSL structures.
7060 Note that using the SSL API in certain dirty ways now will result
7061 in different behaviour than observed with earlier library versions:
7062 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
7063 does not influence s as it used to.
7065 In order to clean up things more thoroughly, inside SSL_SESSION
7066 we don't use CERT any longer, but a new structure SESS_CERT
7067 that holds per-session data (if available); currently, this is
7068 the peer's certificate chain and, for clients, the server's certificate
7069 and temporary key. CERT holds only those values that can have
7070 meaningful defaults in an SSL_CTX.
7073 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
7074 from the internal representation. Various PKCS#7 fixes: remove some
7075 evil casts and set the enc_dig_alg field properly based on the signing
7079 *) Allow PKCS#12 password to be set from the command line or the
7080 environment. Let 'ca' get its config file name from the environment
7081 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
7085 *) Allow certificate policies extension to use an IA5STRING for the
7086 organization field. This is contrary to the PKIX definition but
7087 VeriSign uses it and IE5 only recognises this form. Document 'x509'
7091 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
7092 without disallowing inline assembler and the like for non-pedantic builds.
7095 *) Support Borland C++ builder.
7096 [Janez Jere <jj@void.si>, modified by Ulf Möller]
7101 *) SHA-1 cleanups and performance enhancements.
7102 [Andy Polyakov <appro@fy.chalmers.se>]
7104 *) Sparc v8plus assembler for the bignum library.
7105 [Andy Polyakov <appro@fy.chalmers.se>]
7107 *) Accept any -xxx and +xxx compiler options in Configure.
7110 *) Update HPUX configuration.
7113 *) Add missing sk_<type>_unshift() function to safestack.h
7114 [Ralf S. Engelschall]
7116 *) New function SSL_CTX_use_certificate_chain_file that sets the
7117 "extra_cert"s in addition to the certificate. (This makes sense
7118 only for "PEM" format files, as chains as a whole are not
7122 *) Support verify_depth from the SSL API.
7123 x509_vfy.c had what can be considered an off-by-one-error:
7124 Its depth (which was not part of the external interface)
7125 was actually counting the number of certificates in a chain;
7126 now it really counts the depth.
7129 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
7130 instead of X509err, which often resulted in confusing error
7131 messages since the error codes are not globally unique
7132 (e.g. an alleged error in ssl3_accept when a certificate
7133 didn't match the private key).
7135 *) New function SSL_CTX_set_session_id_context that allows to set a default
7136 value (so that you don't need SSL_set_session_id_context for each
7137 connection using the SSL_CTX).
7140 *) OAEP decoding bug fix.
7143 *) Support INSTALL_PREFIX for package builders, as proposed by
7147 *) New Configure options "threads" and "no-threads". For systems
7148 where the proper compiler options are known (currently Solaris
7149 and Linux), "threads" is the default.
7152 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
7155 *) Install various scripts to $(OPENSSLDIR)/misc, not to
7156 $(INSTALLTOP)/bin -- they shouldn't clutter directories
7157 such as /usr/local/bin.
7160 *) "make linux-shared" to build shared libraries.
7161 [Niels Poppe <niels@netbox.org>]
7163 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
7166 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
7167 extension adding in x509 utility.
7170 *) Remove NOPROTO sections and error code comments.
7173 *) Partial rewrite of the DEF file generator to now parse the ANSI
7177 *) New Configure options --prefix=DIR and --openssldir=DIR.
7180 *) Complete rewrite of the error code script(s). It is all now handled
7181 by one script at the top level which handles error code gathering,
7182 header rewriting and C source file generation. It should be much better
7183 than the old method: it now uses a modified version of Ulf's parser to
7184 read the ANSI prototypes in all header files (thus the old K&R definitions
7185 aren't needed for error creation any more) and do a better job of
7186 translating function codes into names. The old 'ASN1 error code imbedded
7187 in a comment' is no longer necessary and it doesn't use .err files which
7188 have now been deleted. Also the error code call doesn't have to appear all
7189 on one line (which resulted in some large lines...).
7192 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
7195 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
7196 0 (which usually indicates a closed connection), but continue reading.
7199 *) Fix some race conditions.
7202 *) Add support for CRL distribution points extension. Add Certificate
7203 Policies and CRL distribution points documentation.
7206 *) Move the autogenerated header file parts to crypto/opensslconf.h.
7209 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
7210 8 of keying material. Merlin has also confirmed interop with this fix
7211 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
7212 [Merlin Hughes <merlin@baltimore.ie>]
7214 *) Fix lots of warnings.
7215 [Richard Levitte <levitte@stacken.kth.se>]
7217 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
7218 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
7219 [Richard Levitte <levitte@stacken.kth.se>]
7221 *) Fix problems with sizeof(long) == 8.
7222 [Andy Polyakov <appro@fy.chalmers.se>]
7224 *) Change functions to ANSI C.
7227 *) Fix typos in error codes.
7228 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
7230 *) Remove defunct assembler files from Configure.
7233 *) SPARC v8 assembler BIGNUM implementation.
7234 [Andy Polyakov <appro@fy.chalmers.se>]
7236 *) Support for Certificate Policies extension: both print and set.
7237 Various additions to support the r2i method this uses.
7240 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
7241 return a const string when you are expecting an allocated buffer.
7244 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
7245 types DirectoryString and DisplayText.
7248 *) Add code to allow r2i extensions to access the configuration database,
7249 add an LHASH database driver and add several ctx helper functions.
7252 *) Fix an evil bug in bn_expand2() which caused various BN functions to
7253 fail when they extended the size of a BIGNUM.
7256 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
7257 support typesafe stack.
7260 *) Fix typo in SSL_[gs]et_options().
7261 [Nils Frostberg <nils@medcom.se>]
7263 *) Delete various functions and files that belonged to the (now obsolete)
7264 old X509V3 handling code.
7267 *) New Configure option "rsaref".
7270 *) Don't auto-generate pem.h.
7273 *) Introduce type-safe ASN.1 SETs.
7276 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
7277 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
7279 *) Introduce type-safe STACKs. This will almost certainly break lots of code
7280 that links with OpenSSL (well at least cause lots of warnings), but fear
7281 not: the conversion is trivial, and it eliminates loads of evil casts. A
7282 few STACKed things have been converted already. Feel free to convert more.
7283 In the fullness of time, I'll do away with the STACK type altogether.
7286 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
7287 specified in <certfile> by updating the entry in the index.txt file.
7288 This way one no longer has to edit the index.txt file manually for
7289 revoking a certificate. The -revoke option does the gory details now.
7290 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
7292 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
7293 `-text' option at all and this way the `-noout -text' combination was
7294 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
7295 [Ralf S. Engelschall]
7297 *) Make sure a corresponding plain text error message exists for the
7298 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
7299 verify callback function determined that a certificate was revoked.
7300 [Ralf S. Engelschall]
7302 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
7303 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
7304 all available cipers including rc5, which was forgotten until now.
7305 In order to let the testing shell script know which algorithms
7306 are available, a new (up to now undocumented) command
7307 "openssl list-cipher-commands" is used.
7310 *) Bugfix: s_client occasionally would sleep in select() when
7311 it should have checked SSL_pending() first.
7314 *) New functions DSA_do_sign and DSA_do_verify to provide access to
7315 the raw DSA values prior to ASN.1 encoding.
7318 *) Tweaks to Configure
7319 [Niels Poppe <niels@netbox.org>]
7321 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
7325 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
7328 *) New config option to avoid instructions that are illegal on the 80386.
7329 The default code is faster, but requires at least a 486.
7332 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
7333 SSL2_SERVER_VERSION (not used at all) macros, which are now the
7334 same as SSL2_VERSION anyway.
7337 *) New "-showcerts" option for s_client.
7340 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
7341 application. Various cleanups and fixes.
7344 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
7345 modify error routines to work internally. Add error codes and PBE init
7346 to library startup routines.
7349 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
7350 packing functions to asn1 and evp. Changed function names and error
7351 codes along the way.
7354 *) PKCS12 integration: and so it begins... First of several patches to
7355 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
7356 objects to objects.h
7359 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
7360 and display support for Thawte strong extranet extension.
7363 *) Add LinuxPPC support.
7364 [Jeff Dubrule <igor@pobox.org>]
7366 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
7367 bn_div_words in alpha.s.
7368 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
7370 *) Make sure the RSA OAEP test is skipped under -DRSAref because
7371 OAEP isn't supported when OpenSSL is built with RSAref.
7372 [Ulf Moeller <ulf@fitug.de>]
7374 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
7375 so they no longer are missing under -DNOPROTO.
7376 [Soren S. Jorvang <soren@t.dk>]
7379 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
7381 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
7382 doesn't work when the session is reused. Coming soon!
7385 *) Fix a security hole, that allows sessions to be reused in the wrong
7386 context thus bypassing client cert protection! All software that uses
7387 client certs and session caches in multiple contexts NEEDS PATCHING to
7388 allow session reuse! A fuller solution is in the works.
7389 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
7391 *) Some more source tree cleanups (removed obsolete files
7392 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
7393 permission on "config" script to be executable) and a fix for the INSTALL
7395 [Ulf Moeller <ulf@fitug.de>]
7397 *) Remove some legacy and erroneous uses of malloc, free instead of
7399 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
7401 *) Make rsa_oaep_test return non-zero on error.
7402 [Ulf Moeller <ulf@fitug.de>]
7404 *) Add support for native Solaris shared libraries. Configure
7405 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
7406 if someone would make that last step automatic.
7407 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
7409 *) ctx_size was not built with the right compiler during "make links". Fixed.
7412 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
7413 except NULL ciphers". This means the default cipher list will no longer
7414 enable NULL ciphers. They need to be specifically enabled e.g. with
7415 the string "DEFAULT:eNULL".
7418 *) Fix to RSA private encryption routines: if p < q then it would
7419 occasionally produce an invalid result. This will only happen with
7420 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
7423 *) Be less restrictive and allow also `perl util/perlpath.pl
7424 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
7425 because this way one can also use an interpreter named `perl5' (which is
7426 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
7427 installed as `perl').
7428 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7430 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
7431 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7433 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
7434 advapi32.lib to Win32 build and change the pem test comparision
7435 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
7436 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
7437 and crypto/des/ede_cbcm_enc.c.
7440 *) DES quad checksum was broken on big-endian architectures. Fixed.
7443 *) Comment out two functions in bio.h that aren't implemented. Fix up the
7444 Win32 test batch file so it (might) work again. The Win32 test batch file
7445 is horrible: I feel ill....
7448 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
7449 in e_os.h. Audit of header files to check ANSI and non ANSI
7450 sections: 10 functions were absent from non ANSI section and not exported
7451 from Windows DLLs. Fixed up libeay.num for new functions.
7454 *) Make `openssl version' output lines consistent.
7455 [Ralf S. Engelschall]
7457 *) Fix Win32 symbol export lists for BIO functions: Added
7458 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
7459 to ms/libeay{16,32}.def.
7460 [Ralf S. Engelschall]
7462 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
7463 fine under Unix and passes some trivial tests I've now added. But the
7464 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
7465 added to make sure no one expects that this stuff really works in the
7466 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
7467 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
7469 [Ralf S. Engelschall]
7471 *) Fix the generation of two part addresses in perl.
7472 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
7474 *) Add config entry for Linux on MIPS.
7475 [John Tobey <jtobey@channel1.com>]
7477 *) Make links whenever Configure is run, unless we are on Windoze.
7480 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
7481 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
7485 *) Add a useful kludge to allow package maintainers to specify compiler and
7486 other platforms details on the command line without having to patch the
7487 Configure script everytime: One now can use ``perl Configure
7488 <id>:<details>'', i.e. platform ids are allowed to have details appended
7489 to them (seperated by colons). This is treated as there would be a static
7490 pre-configured entry in Configure's %table under key <id> with value
7491 <details> and ``perl Configure <id>'' is called. So, when you want to
7492 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
7493 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
7494 now, which overrides the FreeBSD-elf entry on-the-fly.
7495 [Ralf S. Engelschall]
7497 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
7500 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
7501 on the `perl Configure ...' command line. This way one can compile
7502 OpenSSL libraries with Position Independent Code (PIC) which is needed
7503 for linking it into DSOs.
7504 [Ralf S. Engelschall]
7506 *) Remarkably, export ciphers were totally broken and no-one had noticed!
7510 *) Cleaned up the LICENSE document: The official contact for any license
7511 questions now is the OpenSSL core team under openssl-core@openssl.org.
7512 And add a paragraph about the dual-license situation to make sure people
7513 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
7514 to the OpenSSL toolkit.
7515 [Ralf S. Engelschall]
7517 *) General source tree makefile cleanups: Made `making xxx in yyy...'
7518 display consistent in the source tree and replaced `/bin/rm' by `rm'.
7519 Additonally cleaned up the `make links' target: Remove unnecessary
7520 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
7521 to speed processing and no longer clutter the display with confusing
7522 stuff. Instead only the actually done links are displayed.
7523 [Ralf S. Engelschall]
7525 *) Permit null encryption ciphersuites, used for authentication only. It used
7526 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
7527 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
7531 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
7532 signed attributes when verifying signatures (this would break them),
7533 the detached data encoding was wrong and public keys obtained using
7534 X509_get_pubkey() weren't freed.
7537 *) Add text documentation for the BUFFER functions. Also added a work around
7538 to a Win95 console bug. This was triggered by the password read stuff: the
7539 last character typed gets carried over to the next fread(). If you were
7540 generating a new cert request using 'req' for example then the last
7541 character of the passphrase would be CR which would then enter the first
7545 *) Added the new `Includes OpenSSL Cryptography Software' button as
7546 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
7547 button and can be used by applications based on OpenSSL to show the
7548 relationship to the OpenSSL project.
7549 [Ralf S. Engelschall]
7551 *) Remove confusing variables in function signatures in files
7552 ssl/ssl_lib.c and ssl/ssl.h.
7553 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7555 *) Don't install bss_file.c under PREFIX/include/
7556 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7558 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
7559 functions that return function pointers and has support for NT specific
7560 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
7561 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
7562 unsigned to signed types: this was killing the Win32 compile.
7565 *) Add new certificate file to stack functions,
7566 SSL_add_dir_cert_subjects_to_stack() and
7567 SSL_add_file_cert_subjects_to_stack(). These largely supplant
7568 SSL_load_client_CA_file(), and can be used to add multiple certs easily
7569 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
7570 This means that Apache-SSL and similar packages don't have to mess around
7571 to add as many CAs as they want to the preferred list.
7574 *) Experiment with doxygen documentation. Currently only partially applied to
7576 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
7577 openssl.doxy as the configuration file.
7580 *) Get rid of remaining C++-style comments which strict C compilers hate.
7581 [Ralf S. Engelschall, pointed out by Carlos Amengual]
7583 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
7584 compiled in by default: it has problems with large keys.
7587 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
7588 DH private keys and/or callback functions which directly correspond to
7589 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
7590 is needed for applications which have to configure certificates on a
7591 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
7593 For the RSA certificate situation is makes no difference, but
7594 for the DSA certificate situation this fixes the "no shared cipher"
7595 problem where the OpenSSL cipher selection procedure failed because the
7596 temporary keys were not overtaken from the context and the API provided
7597 no way to reconfigure them.
7598 The new functions now let applications reconfigure the stuff and they
7599 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
7600 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
7601 non-public-API function ssl_cert_instantiate() is used as a helper
7602 function and also to reduce code redundancy inside ssl_rsa.c.
7603 [Ralf S. Engelschall]
7605 *) Move s_server -dcert and -dkey options out of the undocumented feature
7606 area because they are useful for the DSA situation and should be
7607 recognized by the users.
7608 [Ralf S. Engelschall]
7610 *) Fix the cipher decision scheme for export ciphers: the export bits are
7611 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
7612 SSL_EXP_MASK. So, the original variable has to be used instead of the
7613 already masked variable.
7614 [Richard Levitte <levitte@stacken.kth.se>]
7616 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
7617 [Richard Levitte <levitte@stacken.kth.se>]
7619 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
7620 from `int' to `unsigned int' because it's a length and initialized by
7621 EVP_DigestFinal() which expects an `unsigned int *'.
7622 [Richard Levitte <levitte@stacken.kth.se>]
7624 *) Don't hard-code path to Perl interpreter on shebang line of Configure
7625 script. Instead use the usual Shell->Perl transition trick.
7626 [Ralf S. Engelschall]
7628 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
7629 (in addition to RSA certificates) to match the behaviour of `openssl dsa
7630 -noout -modulus' as it's already the case for `openssl rsa -noout
7631 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
7632 currently the public key is printed (a decision which was already done by
7633 `openssl dsa -modulus' in the past) which serves a similar purpose.
7634 Additionally the NO_RSA no longer completely removes the whole -modulus
7635 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
7637 [Ralf S. Engelschall]
7639 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
7640 BIO. See the source (crypto/evp/bio_ok.c) for more info.
7641 [Arne Ansper <arne@ats.cyber.ee>]
7643 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
7644 to be added. Now both 'req' and 'ca' can use new objects defined in the
7648 *) Add cool BIO that does syslog (or event log on NT).
7649 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
7651 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
7652 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
7653 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
7654 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
7657 *) Add preliminary config info for new extension code.
7660 *) Make RSA_NO_PADDING really use no padding.
7661 [Ulf Moeller <ulf@fitug.de>]
7663 *) Generate errors when private/public key check is done.
7666 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
7667 for some CRL extensions and new objects added.
7670 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
7671 key usage extension and fuller support for authority key id.
7674 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
7675 padding method for RSA, which is recommended for new applications in PKCS
7676 #1 v2.0 (RFC 2437, October 1998).
7677 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
7678 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
7679 against Bleichbacher's attack on RSA.
7680 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
7683 *) Updates to the new SSL compression code
7684 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7686 *) Fix so that the version number in the master secret, when passed
7687 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
7688 (because the server will not accept higher), that the version number
7689 is 0x03,0x01, not 0x03,0x00
7690 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7692 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
7693 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
7694 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
7697 *) Support for RAW extensions where an arbitrary extension can be
7698 created by including its DER encoding. See apps/openssl.cnf for
7702 *) Make sure latest Perl versions don't interpret some generated C array
7703 code as Perl array code in the crypto/err/err_genc.pl script.
7704 [Lars Weber <3weber@informatik.uni-hamburg.de>]
7706 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
7707 not many people have the assembler. Various Win32 compilation fixes and
7708 update to the INSTALL.W32 file with (hopefully) more accurate Win32
7712 *) Modify configure script 'Configure' to automatically create crypto/date.h
7713 file under Win32 and also build pem.h from pem.org. New script
7714 util/mkfiles.pl to create the MINFO file on environments that can't do a
7715 'make files': perl util/mkfiles.pl >MINFO should work.
7718 *) Major rework of DES function declarations, in the pursuit of correctness
7719 and purity. As a result, many evil casts evaporated, and some weirdness,
7720 too. You may find this causes warnings in your code. Zapping your evil
7721 casts will probably fix them. Mostly.
7724 *) Fix for a typo in asn1.h. Bug fix to object creation script
7725 obj_dat.pl. It considered a zero in an object definition to mean
7726 "end of object": none of the objects in objects.h have any zeros
7727 so it wasn't spotted.
7728 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
7730 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
7731 Masking (CBCM). In the absence of test vectors, the best I have been able
7732 to do is check that the decrypt undoes the encrypt, so far. Send me test
7733 vectors if you have them.
7736 *) Correct calculation of key length for export ciphers (too much space was
7737 allocated for null ciphers). This has not been tested!
7740 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
7741 message is now correct (it understands "crypto" and "ssl" on its
7742 command line). There is also now an "update" option. This will update
7743 the util/ssleay.num and util/libeay.num files with any new functions.
7745 perl util/mkdef.pl crypto ssl update
7746 it will update them.
7749 *) Overhauled the Perl interface (perl/*):
7750 - ported BN stuff to OpenSSL's different BN library
7751 - made the perl/ source tree CVS-aware
7752 - renamed the package from SSLeay to OpenSSL (the files still contain
7753 their history because I've copied them in the repository)
7754 - removed obsolete files (the test scripts will be replaced
7755 by better Test::Harness variants in the future)
7756 [Ralf S. Engelschall]
7758 *) First cut for a very conservative source tree cleanup:
7759 1. merge various obsolete readme texts into doc/ssleay.txt
7760 where we collect the old documents and readme texts.
7761 2. remove the first part of files where I'm already sure that we no
7762 longer need them because of three reasons: either they are just temporary
7763 files which were left by Eric or they are preserved original files where
7764 I've verified that the diff is also available in the CVS via "cvs diff
7765 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
7766 the crypto/md/ stuff).
7767 [Ralf S. Engelschall]
7769 *) More extension code. Incomplete support for subject and issuer alt
7770 name, issuer and authority key id. Change the i2v function parameters
7771 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
7772 what that's for :-) Fix to ASN1 macro which messed up
7773 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
7776 *) Preliminary support for ENUMERATED type. This is largely copied from the
7780 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
7781 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7783 *) Make sure `make rehash' target really finds the `openssl' program.
7784 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7786 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
7787 like to hear about it if this slows down other processors.
7790 *) Add CygWin32 platform information to Configure script.
7791 [Alan Batie <batie@aahz.jf.intel.com>]
7793 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
7794 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
7796 *) New program nseq to manipulate netscape certificate sequences
7799 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
7803 *) Fixes to BN code. Previously the default was to define BN_RECURSION
7804 but the BN code had some problems that would cause failures when
7805 doing certificate verification and some other functions.
7806 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7808 *) Add ASN1 and PEM code to support netscape certificate sequences.
7811 *) Add ASN1 and PEM code to support netscape certificate sequences.
7814 *) Add several PKIX and private extended key usage OIDs.
7817 *) Modify the 'ca' program to handle the new extension code. Modify
7818 openssl.cnf for new extension format, add comments.
7821 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
7822 and add a sample to openssl.cnf so req -x509 now adds appropriate
7826 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
7827 error code, add initial support to X509_print() and x509 application.
7830 *) Takes a deep breath and start addding X509 V3 extension support code. Add
7831 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
7832 stuff is currently isolated and isn't even compiled yet.
7835 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
7836 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
7837 Removed the versions check from X509 routines when loading extensions:
7838 this allows certain broken certificates that don't set the version
7839 properly to be processed.
7842 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
7843 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
7844 can still be regenerated with "make depend".
7847 *) Spelling mistake in C version of CAST-128.
7848 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
7850 *) Changes to the error generation code. The perl script err-code.pl
7851 now reads in the old error codes and retains the old numbers, only
7852 adding new ones if necessary. It also only changes the .err files if new
7853 codes are added. The makefiles have been modified to only insert errors
7854 when needed (to avoid needlessly modifying header files). This is done
7855 by only inserting errors if the .err file is newer than the auto generated
7856 C file. To rebuild all the error codes from scratch (the old behaviour)
7857 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
7858 or delete all the .err files.
7861 *) CAST-128 was incorrectly implemented for short keys. The C version has
7862 been fixed, but is untested. The assembler versions are also fixed, but
7863 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
7864 to regenerate it if needed.
7865 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
7866 Hagino <itojun@kame.net>]
7868 *) File was opened incorrectly in randfile.c.
7869 [Ulf Möller <ulf@fitug.de>]
7871 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
7872 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
7873 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
7874 al: it's just almost always a UTCTime. Note this patch adds new error
7875 codes so do a "make errors" if there are problems.
7878 *) Correct Linux 1 recognition in config.
7879 [Ulf Möller <ulf@fitug.de>]
7881 *) Remove pointless MD5 hash when using DSA keys in ca.
7882 [Anonymous <nobody@replay.com>]
7884 *) Generate an error if given an empty string as a cert directory. Also
7885 generate an error if handed NULL (previously returned 0 to indicate an
7886 error, but didn't set one).
7887 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
7889 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
7892 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
7893 parameters. This was causing a warning which killed off the Win32 compile.
7896 *) Remove C++ style comments from crypto/bn/bn_local.h.
7897 [Neil Costigan <neil.costigan@celocom.com>]
7899 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
7900 based on a text string, looking up short and long names and finally
7901 "dot" format. The "dot" format stuff didn't work. Added new function
7902 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
7903 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
7904 OID is not part of the table.
7907 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
7908 X509_LOOKUP_by_alias().
7911 *) Sort openssl functions by name.
7914 *) Get the gendsa program working (hopefully) and add it to app list. Remove
7915 encryption from sample DSA keys (in case anyone is interested the password
7919 *) Make _all_ *_free functions accept a NULL pointer.
7920 [Frans Heymans <fheymans@isaserver.be>]
7922 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
7924 [Anonymous <nobody@replay.com>]
7926 *) s_server should send the CAfile as acceptable CAs, not its own cert.
7927 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
7929 *) Don't blow it for numeric -newkey arguments to apps/req.
7930 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
7932 *) Temp key "for export" tests were wrong in s3_srvr.c.
7933 [Anonymous <nobody@replay.com>]
7935 *) Add prototype for temp key callback functions
7936 SSL_CTX_set_tmp_{rsa,dh}_callback().
7939 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
7940 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
7943 *) X509_name_add_entry() freed the wrong thing after an error.
7944 [Arne Ansper <arne@ats.cyber.ee>]
7946 *) rsa_eay.c would attempt to free a NULL context.
7947 [Arne Ansper <arne@ats.cyber.ee>]
7949 *) BIO_s_socket() had a broken should_retry() on Windoze.
7950 [Arne Ansper <arne@ats.cyber.ee>]
7952 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
7953 [Arne Ansper <arne@ats.cyber.ee>]
7955 *) Make sure the already existing X509_STORE->depth variable is initialized
7956 in X509_STORE_new(), but document the fact that this variable is still
7957 unused in the certificate verification process.
7958 [Ralf S. Engelschall]
7960 *) Fix the various library and apps files to free up pkeys obtained from
7961 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
7964 *) Fix reference counting in X509_PUBKEY_get(). This makes
7965 demos/maurice/example2.c work, amongst others, probably.
7966 [Steve Henson and Ben Laurie]
7968 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
7969 `openssl' and second, the shortcut symlinks for the `openssl <command>'
7970 are no longer created. This way we have a single and consistent command
7971 line interface `openssl <command>', similar to `cvs <command>'.
7972 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
7974 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
7975 BIT STRING wrapper always have zero unused bits.
7978 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
7981 *) Make the top-level INSTALL documentation easier to understand.
7984 *) Makefiles updated to exit if an error occurs in a sub-directory
7985 make (including if user presses ^C) [Paul Sutton]
7987 *) Make Montgomery context stuff explicit in RSA data structure.
7990 *) Fix build order of pem and err to allow for generated pem.h.
7993 *) Fix renumbering bug in X509_NAME_delete_entry().
7996 *) Enhanced the err-ins.pl script so it makes the error library number
7997 global and can add a library name. This is needed for external ASN1 and
7998 other error libraries.
8001 *) Fixed sk_insert which never worked properly.
8004 *) Fix ASN1 macros so they can handle indefinite length construted
8005 EXPLICIT tags. Some non standard certificates use these: they can now
8009 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
8010 into a single doc/ssleay.txt bundle. This way the information is still
8011 preserved but no longer messes up this directory. Now it's new room for
8012 the new set of documenation files.
8013 [Ralf S. Engelschall]
8015 *) SETs were incorrectly DER encoded. This was a major pain, because they
8016 shared code with SEQUENCEs, which aren't coded the same. This means that
8017 almost everything to do with SETs or SEQUENCEs has either changed name or
8018 number of arguments.
8019 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
8021 *) Fix test data to work with the above.
8024 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
8025 was already fixed by Eric for 0.9.1 it seems.
8026 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
8028 *) Autodetect FreeBSD3.
8031 *) Fix various bugs in Configure. This affects the following platforms:
8035 unixware-2.0-pentium
8039 *) Eliminate generated files from CVS. Reorder tests to regenerate files
8040 before they are needed.
8043 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
8047 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
8049 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
8050 changed SSLeay to OpenSSL in version strings.
8051 [Ralf S. Engelschall]
8053 *) Some fixups to the top-level documents.
8056 *) Fixed the nasty bug where rsaref.h was not found under compile-time
8057 because the symlink to include/ was missing.
8058 [Ralf S. Engelschall]
8060 *) Incorporated the popular no-RSA/DSA-only patches
8061 which allow to compile a RSA-free SSLeay.
8062 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
8064 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
8065 when "ssleay" is still not found.
8066 [Ralf S. Engelschall]
8068 *) Added more platforms to Configure: Cray T3E, HPUX 11,
8069 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
8071 *) Updated the README file.
8072 [Ralf S. Engelschall]
8074 *) Added various .cvsignore files in the CVS repository subdirs
8075 to make a "cvs update" really silent.
8076 [Ralf S. Engelschall]
8078 *) Recompiled the error-definition header files and added
8079 missing symbols to the Win32 linker tables.
8080 [Ralf S. Engelschall]
8082 *) Cleaned up the top-level documents;
8083 o new files: CHANGES and LICENSE
8084 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
8085 o merged COPYRIGHT into LICENSE
8086 o removed obsolete TODO file
8087 o renamed MICROSOFT to INSTALL.W32
8088 [Ralf S. Engelschall]
8090 *) Removed dummy files from the 0.9.1b source tree:
8091 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
8092 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
8093 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
8094 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
8095 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
8096 [Ralf S. Engelschall]
8098 *) Added various platform portability fixes.
8101 *) The Genesis of the OpenSSL rpject:
8102 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
8103 Young and Tim J. Hudson created while they were working for C2Net until
8105 [The OpenSSL Project]
8108 Changes between 0.9.0b and 0.9.1b [not released]
8110 *) Updated a few CA certificates under certs/
8113 *) Changed some BIGNUM api stuff.
8116 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
8117 DGUX x86, Linux Alpha, etc.
8120 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
8121 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
8125 *) Add -strparse option to asn1pars program which parses nested
8127 [Dr Stephen Henson <shenson@bigfoot.com>]
8129 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
8132 *) DSA fix for "ca" program.
8135 *) Added "-genkey" option to "dsaparam" program.
8138 *) Added RIPE MD160 (rmd160) message digest.
8141 *) Added -a (all) option to "ssleay version" command.
8144 *) Added PLATFORM define which is the id given to Configure.
8147 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
8150 *) Extended the ASN.1 parser routines.
8153 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
8156 *) Added a BN_CTX to the BN library.
8159 *) Fixed the weak key values in DES library
8162 *) Changed API in EVP library for cipher aliases.
8165 *) Added support for RC2/64bit cipher.
8168 *) Converted the lhash library to the crypto/mem.c functions.
8171 *) Added more recognized ASN.1 object ids.
8174 *) Added more RSA padding checks for SSL/TLS.
8177 *) Added BIO proxy/filter functionality.
8180 *) Added extra_certs to SSL_CTX which can be used
8181 send extra CA certificates to the client in the CA cert chain sending
8182 process. It can be configured with SSL_CTX_add_extra_chain_cert().
8185 *) Now Fortezza is denied in the authentication phase because
8186 this is key exchange mechanism is not supported by SSLeay at all.
8189 *) Additional PKCS1 checks.
8192 *) Support the string "TLSv1" for all TLS v1 ciphers.
8195 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
8196 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
8199 *) Fixed a few memory leaks.
8202 *) Fixed various code and comment typos.
8205 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
8206 bytes sent in the client random.
8207 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob