5 Changes between 0.9.8e and 0.9.9 [xx XXX xxxx]
7 *) Load error codes if they are not already present instead of using a
8 static variable. This allows them to be cleanly unloaded and reloaded.
9 Improve header file function name parsing.
12 *) Initial incomplete changes to avoid need for function casts in OpenSSL
13 when OPENSSL_NO_FCAST is set: some compilers (gcc 4.2 and later) reject
14 their use. Safestack is reimplemented using inline functions: tests show
15 that these calls are typically optimized away by compilers so they have
16 no additional overhead. Update ASN1 to avoid use of legacy functions.
19 *) Win32/64 targets are linked with Winsock2.
22 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
23 to external functions. This can be used to increase CRL handling
24 efficiency especially when CRLs are very large by (for example) storing
25 the CRL revoked certificates in a database.
28 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
29 new CRLs added to a directory can be used. New command line option
30 -verify_return_error to s_client and s_server. This causes real errors
31 to be returned by the verify callback instead of carrying on no matter
32 what. This reflects the way a "real world" verify callback would behave.
35 *) GOST engine, supporting several GOST algorithms and public key formats.
36 Kindly donated by Cryptocom.
39 *) Partial support for Issuing Distribution Point CRL extension. CRLs
40 partitioned by DP are handled but no indirect CRL or reason partitioning
41 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
42 selected via a scoring technique which handles IDP and AKID in CRLs.
45 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
46 will ultimately be used for all verify operations: this will remove the
47 X509_STORE dependency on certificate verification and allow alternative
48 lookup methods. X509_STORE based implementations of these two callbacks.
51 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
52 Modify get_crl() to find a valid (unexpired) CRL if possible.
55 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
56 this would be called X509_CRL_cmp() but that name is already used by
57 a function that just compares CRL issuer names. Cache several CRL
58 extensions in X509_CRL structure and cache CRLDP in X509.
61 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
62 this maps equivalent X509_NAME structures into a consistent structure.
63 Name comparison can then be performed rapidly using memcmp().
66 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
70 *) Allow digests to supply their own micalg string for S/MIME type using
71 the ctrl EVP_MD_CTRL_MICALG.
74 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
75 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
76 ctrl. It can then customise the structure before and/or after signing
80 *) New function OBJ_add_sigid() to allow application defined signature OIDs
81 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
82 to free up any added signature OIDs.
85 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
86 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
87 digest and cipher tables. New options added to openssl utility:
88 list-message-digest-algorithms and list-cipher-algorithms.
91 *) In addition to the numerical (unsigned long) thread ID, provide
92 for a pointer (void *) thread ID. This helps accomodate systems
93 that do not provide an unsigned long thread ID. OpenSSL assumes
94 it is in the same thread iff both the numerical and the pointer
95 thread ID agree; so applications are just required to define one
96 of them appropriately (e.g., by using a pointer to a per-thread
97 memory object malloc()ed by the application for the pointer-type
98 thread ID). Exactly analoguous to the existing functions
100 void CRYPTO_set_id_callback(unsigned long (*func)(void));
101 unsigned long (*CRYPTO_get_id_callback(void))(void);
102 unsigned long CRYPTO_thread_id(void);
104 we now have additional functions
106 void CRYPTO_set_idptr_callback(void *(*func)(void));
107 void *(*CRYPTO_get_idptr_callback(void))(void);
108 void *CRYPTO_thread_idptr(void);
110 also in <openssl/crypto.h>. The default value for
111 CRYPTO_thread_idptr() if the application has not provided its own
115 *) Change the array representation of binary polynomials: the list
116 of degrees of non-zero coefficients is now terminated with -1.
117 Previously it was terminated with 0, which was also part of the
118 value; thus, the array representation was not applicable to
119 polynomials where t^0 has coefficient zero. This change makes
120 the array representation useful in a more general context.
123 *) Various modifications and fixes to SSL/TLS cipher string
124 handling. For ECC, the code now distinguishes between fixed ECDH
125 with RSA certificates on the one hand and with ECDSA certificates
126 on the other hand, since these are separate ciphersuites. The
127 unused code for Fortezza ciphersuites has been removed.
129 For consistency with EDH, ephemeral ECDH is now called "EECDH"
130 (not "ECDHE"). For consistency with the code for DH
131 certificates, use of ECDH certificates is now considered ECDH
132 authentication, not RSA or ECDSA authentication (the latter is
133 merely the CA's signing algorithm and not actively used in the
136 The temporary ciphersuite alias "ECCdraft" is no longer
137 available, and ECC ciphersuites are no longer excluded from "ALL"
138 and "DEFAULT". The following aliases now exist for RFC 4492
139 ciphersuites, most of these by analogy with the DH case:
141 kECDHr - ECDH cert, signed with RSA
142 kECDHe - ECDH cert, signed with ECDSA
143 kECDH - ECDH cert (signed with either RSA or ECDSA)
144 kEECDH - ephemeral ECDH
145 ECDH - ECDH cert or ephemeral ECDH
151 AECDH - anonymous ECDH
152 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
156 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
157 Use correct micalg parameters depending on digest(s) in signed message.
160 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
161 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
164 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
165 an engine to register a method. Add ENGINE lookups for methods and
166 functional reference processing.
169 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
170 EVP_{Sign,Verify}* which allow an application to customise the signature
174 *) New -resign option to smime utility. This adds one or more signers
175 to an existing PKCS#7 signedData structure. Also -md option to use an
176 alternative message digest algorithm for signing.
179 *) Tidy up PKCS#7 routines and add new functions to make it easier to
180 create PKCS7 structures containing multiple signers. Update smime
181 application to support multiple signers.
184 *) New -macalg option to pkcs12 utility to allow setting of an alternative
188 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
189 Reorganize PBE internals to lookup from a static table using NIDs,
190 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
191 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
192 PRF which will be automatically used with PBES2.
195 *) Replace the algorithm specific calls to generate keys in "req" with the
199 *) Update PKCS#7 enveloped data routines to use new API. This is now
200 supported by any public key method supporting the encrypt operation. A
201 ctrl is added to allow the public key algorithm to examine or modify
202 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
206 *) Add a ctrl to asn1 method to allow a public key algorithm to express
207 a default digest type to use. In most cases this will be SHA1 but some
208 algorithms (such as GOST) need to specify an alternative digest. The
209 return value indicates how strong the prefernce is 1 means optional and
210 2 is mandatory (that is it is the only supported type). Modify
211 ASN1_item_sign() to accept a NULL digest argument to indicate it should
212 use the default md. Update openssl utilities to use the default digest
213 type for signing if it is not explicitly indicated.
216 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
217 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
218 signing method from the key type. This effectively removes the link
219 between digests and public key types.
222 *) Add an OID cross reference table and utility functions. Its purpose is to
223 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
224 rsaEncryption. This will allow some of the algorithm specific hackery
225 needed to use the correct OID to be removed.
228 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
229 structures for PKCS7_sign(). They are now set up by the relevant public
233 *) Add provisional EC pkey method with support for ECDSA and ECDH.
236 *) Add support for key derivation (agreement) in the API, DH method and
240 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
241 public and private key formats. As a side effect these add additional
242 command line functionality not previously available: DSA signatures can be
243 generated and verified using pkeyutl and DH key support and generation in
248 [Oliver Tappe <zooey@hirschkaefer.de>]
250 *) New make target "install_html_docs" installs HTML renditions of the
252 [Oliver Tappe <zooey@hirschkaefer.de>]
254 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
255 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
256 support key and parameter generation and add initial key generation
257 functionality for RSA.
260 *) Add functions for main EVP_PKEY_method operations. The undocumented
261 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
262 EVP_PKEY_{encrypt,decrypt}_old.
265 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
266 key API, doesn't do much yet.
269 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
270 public key algorithms. New option to openssl utility:
271 "list-public-key-algorithms" to print out info.
274 *) Implement the Supported Elliptic Curves Extension for
275 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
278 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
279 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
282 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
283 utilities such as rsa, dsa, dsaparam etc except they process any key
287 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
288 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
289 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
293 *) Initial support for pluggable public key ASN1.
294 De-spaghettify the public key ASN1 handling. Move public and private
295 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
296 algorithm specific handling to a single module within the relevant
297 algorithm directory. Add functions to allow (near) opaque processing
298 of public and private key structures.
301 *) Implement the Supported Point Formats Extension for
302 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
305 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
306 for the psk identity [hint] and the psk callback functions to the
307 SSL_SESSION, SSL and SSL_CTX structure.
310 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
314 SSL_CTX_use_psk_identity_hint
315 SSL_get_psk_identity_hint
317 SSL_use_psk_identity_hint
319 [Mika Kousa and Pasi Eronen of Nokia Corporation]
321 *) Add RFC 3161 compliant time stamp request creation, response generation
322 and response verification functionality.
323 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
325 *) Add initial support for TLS extensions, specifically for the server_name
326 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
327 have new members for a host name. The SSL data structure has an
328 additional member SSL_CTX *initial_ctx so that new sessions can be
329 stored in that context to allow for session resumption, even after the
330 SSL has been switched to a new SSL_CTX in reaction to a client's
331 server_name extension.
333 New functions (subject to change):
336 SSL_get_servername_type()
339 New CTRL codes and macros (subject to change):
341 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
342 - SSL_CTX_set_tlsext_servername_callback()
343 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
344 - SSL_CTX_set_tlsext_servername_arg()
345 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_hostname()
347 openssl s_client has a new '-servername ...' option.
349 openssl s_server has new options '-servername_host ...', '-cert2 ...',
350 '-key2 ...', '-servername_fatal' (subject to change). This allows
351 testing the HostName extension for a specific single host name ('-cert'
352 and '-key' remain fallbacks for handshakes without HostName
353 negotiation). If the unrecogninzed_name alert has to be sent, this by
354 default is a warning; it becomes fatal with the '-servername_fatal'
357 [Peter Sylvester, Remy Allais, Christophe Renou]
359 *) Whirlpool hash implementation is added.
362 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
363 bn(64,32). Because of instruction set limitations it doesn't have
364 any negative impact on performance. This was done mostly in order
365 to make it possible to share assembler modules, such as bn_mul_mont
366 implementations, between 32- and 64-bit builds without hassle.
369 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
370 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
374 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
375 dedicated Montgomery multiplication procedure, is introduced.
376 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
377 "64-bit" performance on certain 32-bit targets.
380 *) New option SSL_OP_NO_COMP to disable use of compression selectively
381 in SSL structures. New SSL ctrl to set maximum send fragment size.
382 Save memory by seeting the I/O buffer sizes dynamically instead of
383 using the maximum available value.
386 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
387 in addition to the text details.
390 *) Very, very preliminary EXPERIMENTAL support for printing of general
391 ASN1 structures. This currently produces rather ugly output and doesn't
392 handle several customised structures at all.
395 *) Integrated support for PVK file format and some related formats such
396 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
397 these in the 'rsa' and 'dsa' utilities.
400 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
403 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
404 place for the (very old) "NETSCAPE" format certificates which are now
405 handled using new ASN1 code equivalents.
408 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
409 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
410 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
413 *) Modify CRL distribution points extension code to print out previously
414 unsupported fields. Enhance extension setting code to allow setting of
418 *) Add print and set support for Issuing Distribution Point CRL extension.
421 *) Change 'Configure' script to enable Camellia by default.
424 Changes between 0.9.8d and 0.9.8e [XX xxx XXXX]
426 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
428 *) Introduce limits to prevent malicious keys being able to
429 cause a denial of service. (CVE-2006-2940)
430 [Steve Henson, Bodo Moeller]
432 *) Fix ASN.1 parsing of certain invalid structures that can result
433 in a denial of service. (CVE-2006-2937) [Steve Henson]
435 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
436 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
438 *) Fix SSL client code which could crash if connecting to a
439 malicious SSLv2 server. (CVE-2006-4343)
440 [Tavis Ormandy and Will Drewry, Google Security Team]
442 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
443 match only those. Before that, "AES256-SHA" would be interpreted
444 as a pattern and match "AES128-SHA" too (since AES128-SHA got
445 the same strength classification in 0.9.7h) as we currently only
446 have a single AES bit in the ciphersuite description bitmap.
447 That change, however, also applied to ciphersuite strings such as
448 "RC4-MD5" that intentionally matched multiple ciphersuites --
449 namely, SSL 2.0 ciphersuites in addition to the more common ones
450 from SSL 3.0/TLS 1.0.
452 So we change the selection algorithm again: Naming an explicit
453 ciphersuite selects this one ciphersuite, and any other similar
454 ciphersuite (same bitmap) from *other* protocol versions.
455 Thus, "RC4-MD5" again will properly select both the SSL 2.0
456 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
458 Since SSL 2.0 does not have any ciphersuites for which the
459 128/256 bit distinction would be relevant, this works for now.
460 The proper fix will be to use different bits for AES128 and
461 AES256, which would have avoided the problems from the beginning;
462 however, bits are scarce, so we can only do this in a new release
463 (not just a patchlevel) when we can change the SSL_CIPHER
464 definition to split the single 'unsigned long mask' bitmap into
465 multiple values to extend the available space.
469 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
471 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
472 (CVE-2006-4339) [Ben Laurie and Google Security Team]
474 *) Add AES IGE and biIGE modes.
477 *) Change the Unix randomness entropy gathering to use poll() when
478 possible instead of select(), since the latter has some
479 undesirable limitations.
480 [Darryl Miles via Richard Levitte and Bodo Moeller]
482 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
483 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
484 cannot be implicitly activated as part of, e.g., the "AES" alias.
485 However, please upgrade to OpenSSL 0.9.9[-dev] for
486 non-experimental use of the ECC ciphersuites to get TLS extension
487 support, which is required for curve and point format negotiation
488 to avoid potential handshake problems.
491 *) Disable rogue ciphersuites:
493 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
494 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
495 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
497 The latter two were purportedly from
498 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
501 Also deactive the remaining ciphersuites from
502 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
503 unofficial, and the ID has long expired.
506 *) Fix RSA blinding Heisenbug (problems sometimes occured on
507 dual-core machines) and other potential thread-safety issues.
510 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
511 versions), which is now available for royalty-free use
512 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
513 Also, add Camellia TLS ciphersuites from RFC 4132.
515 To minimize changes between patchlevels in the OpenSSL 0.9.8
516 series, Camellia remains excluded from compilation unless OpenSSL
517 is configured with 'enable-camellia'.
520 *) Disable the padding bug check when compression is in use. The padding
521 bug check assumes the first packet is of even length, this is not
522 necessarily true if compresssion is enabled and can result in false
523 positives causing handshake failure. The actual bug test is ancient
524 code so it is hoped that implementations will either have fixed it by
525 now or any which still have the bug do not support compression.
528 Changes between 0.9.8a and 0.9.8b [04 May 2006]
530 *) When applying a cipher rule check to see if string match is an explicit
531 cipher suite and only match that one cipher suite if it is.
534 *) Link in manifests for VC++ if needed.
535 [Austin Ziegler <halostatue@gmail.com>]
537 *) Update support for ECC-based TLS ciphersuites according to
538 draft-ietf-tls-ecc-12.txt with proposed changes (but without
539 TLS extensions, which are supported starting with the 0.9.9
540 branch, not in the OpenSSL 0.9.8 branch).
543 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
544 opaque EVP_CIPHER_CTX handling.
547 *) Fixes and enhancements to zlib compression code. We now only use
548 "zlib1.dll" and use the default __cdecl calling convention on Win32
549 to conform with the standards mentioned here:
550 http://www.zlib.net/DLL_FAQ.txt
551 Static zlib linking now works on Windows and the new --with-zlib-include
552 --with-zlib-lib options to Configure can be used to supply the location
553 of the headers and library. Gracefully handle case where zlib library
557 *) Several fixes and enhancements to the OID generation code. The old code
558 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
559 handle numbers larger than ULONG_MAX, truncated printing and had a
560 non standard OBJ_obj2txt() behaviour.
563 *) Add support for building of engines under engine/ as shared libraries
564 under VC++ build system.
567 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
568 Hopefully, we will not see any false combination of paths any more.
571 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
573 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
574 (part of SSL_OP_ALL). This option used to disable the
575 countermeasure against man-in-the-middle protocol-version
576 rollback in the SSL 2.0 server implementation, which is a bad
577 idea. (CVE-2005-2969)
579 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
580 for Information Security, National Institute of Advanced Industrial
581 Science and Technology [AIST], Japan)]
583 *) Add two function to clear and return the verify parameter flags.
586 *) Keep cipherlists sorted in the source instead of sorting them at
587 runtime, thus removing the need for a lock.
590 *) Avoid some small subgroup attacks in Diffie-Hellman.
591 [Nick Mathewson and Ben Laurie]
593 *) Add functions for well-known primes.
596 *) Extended Windows CE support.
597 [Satoshi Nakamura and Andy Polyakov]
599 *) Initialize SSL_METHOD structures at compile time instead of during
600 runtime, thus removing the need for a lock.
603 *) Make PKCS7_decrypt() work even if no certificate is supplied by
604 attempting to decrypt each encrypted key in turn. Add support to
608 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
610 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
613 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
616 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
617 key into the same file any more.
620 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
623 *) Add -utf8 command line and config file option to 'ca'.
624 [Stefan <stf@udoma.org]
626 *) Removed the macro des_crypt(), as it seems to conflict with some
627 libraries. Use DES_crypt().
630 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
631 involves renaming the source and generated shared-libs for
632 both. The engines will accept the corrected or legacy ids
633 ('ncipher' and '4758_cca' respectively) when binding. NB,
634 this only applies when building 'shared'.
635 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
637 *) Add attribute functions to EVP_PKEY structure. Modify
638 PKCS12_create() to recognize a CSP name attribute and
639 use it. Make -CSP option work again in pkcs12 utility.
642 *) Add new functionality to the bn blinding code:
643 - automatic re-creation of the BN_BLINDING parameters after
644 a fixed number of uses (currently 32)
645 - add new function for parameter creation
646 - introduce flags to control the update behaviour of the
647 BN_BLINDING parameters
648 - hide BN_BLINDING structure
649 Add a second BN_BLINDING slot to the RSA structure to improve
650 performance when a single RSA object is shared among several
654 *) Add support for DTLS.
655 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
657 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
658 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
661 *) Remove buggy and incompletet DH cert support from
662 ssl/ssl_rsa.c and ssl/s3_both.c
665 *) Use SHA-1 instead of MD5 as the default digest algorithm for
666 the apps/openssl applications.
669 *) Compile clean with "-Wall -Wmissing-prototypes
670 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
671 DEBUG_SAFESTACK must also be set.
674 *) Change ./Configure so that certain algorithms can be disabled by default.
675 The new counterpiece to "no-xxx" is "enable-xxx".
677 The patented RC5 and MDC2 algorithms will now be disabled unless
678 "enable-rc5" and "enable-mdc2", respectively, are specified.
680 (IDEA remains enabled despite being patented. This is because IDEA
681 is frequently required for interoperability, and there is no license
682 fee for non-commercial use. As before, "no-idea" can be used to
683 avoid this algorithm.)
687 *) Add processing of proxy certificates (see RFC 3820). This work was
688 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
689 EGEE (Enabling Grids for E-science in Europe).
692 *) RC4 performance overhaul on modern architectures/implementations, such
693 as Intel P4, IA-64 and AMD64.
696 *) New utility extract-section.pl. This can be used specify an alternative
697 section number in a pod file instead of having to treat each file as
698 a separate case in Makefile. This can be done by adding two lines to the
701 =for comment openssl_section:XXX
703 The blank line is mandatory.
707 *) New arguments -certform, -keyform and -pass for s_client and s_server
708 to allow alternative format key and certificate files and passphrase
712 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
713 update associated structures and add various utility functions.
715 Add new policy related verify parameters, include policy checking in
716 standard verify code. Enhance 'smime' application with extra parameters
717 to support policy checking and print out.
720 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
721 Nehemiah processors. These extensions support AES encryption in hardware
722 as well as RNG (though RNG support is currently disabled).
723 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
725 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
728 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
729 [Andy Polyakov and a number of other people]
731 *) Improved PowerPC platform support. Most notably BIGNUM assembler
732 implementation contributed by IBM.
733 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
735 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
736 exponent rather than 'unsigned long'. There is a corresponding change to
737 the new 'rsa_keygen' element of the RSA_METHOD structure.
738 [Jelte Jansen, Geoff Thorpe]
740 *) Functionality for creating the initial serial number file is now
741 moved from CA.pl to the 'ca' utility with a new option -create_serial.
743 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
744 number file to 1, which is bound to cause problems. To avoid
745 the problems while respecting compatibility between different 0.9.7
746 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
747 CA.pl for serial number initialization. With the new release 0.9.8,
748 we can fix the problem directly in the 'ca' utility.)
751 *) Reduced header interdepencies by declaring more opaque objects in
752 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
753 give fewer recursive includes, which could break lazy source code - so
754 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
755 developers should define this symbol when building and using openssl to
756 ensure they track the recommended behaviour, interfaces, [etc], but
757 backwards-compatible behaviour prevails when this isn't defined.
760 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
763 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
764 This will generate a random key of the appropriate length based on the
765 cipher context. The EVP_CIPHER can provide its own random key generation
766 routine to support keys of a specific form. This is used in the des and
767 3des routines to generate a key of the correct parity. Update S/MIME
768 code to use new functions and hence generate correct parity DES keys.
769 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
770 valid (weak or incorrect parity).
773 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
774 as looking them up. This is useful when the verified structure may contain
775 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
776 present unless the new PKCS7_NO_CRL flag is asserted.
779 *) Extend ASN1 oid configuration module. It now additionally accepts the
782 shortName = some long name, 1.2.3.4
785 *) Reimplemented the BN_CTX implementation. There is now no more static
786 limitation on the number of variables it can handle nor the depth of the
787 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
788 information can now expand as required, and rather than having a single
789 static array of bignums, BN_CTX now uses a linked-list of such arrays
790 allowing it to expand on demand whilst maintaining the usefulness of
794 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
795 to allow all RSA operations to function using a single BN_CTX.
798 *) Preliminary support for certificate policy evaluation and checking. This
799 is initially intended to pass the tests outlined in "Conformance Testing
800 of Relying Party Client Certificate Path Processing Logic" v1.07.
803 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
804 remained unused and not that useful. A variety of other little bignum
805 tweaks and fixes have also been made continuing on from the audit (see
809 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
810 associated ASN1, EVP and SSL functions and old ASN1 macros.
813 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
814 and this should never fail. So the return value from the use of
815 BN_set_word() (which can fail due to needless expansion) is now deprecated;
816 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
819 *) BN_CTX_get() should return zero-valued bignums, providing the same
820 initialised value as BN_new().
821 [Geoff Thorpe, suggested by Ulf Möller]
823 *) Support for inhibitAnyPolicy certificate extension.
826 *) An audit of the BIGNUM code is underway, for which debugging code is
827 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
828 is considered valid when processing BIGNUMs, and causes execution to
829 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
830 further steps are taken to deliberately pollute unused data in BIGNUM
831 structures to try and expose faulty code further on. For now, openssl will
832 (in its default mode of operation) continue to tolerate the inconsistent
833 forms that it has tolerated in the past, but authors and packagers should
834 consider trying openssl and their own applications when compiled with
835 these debugging symbols defined. It will help highlight potential bugs in
836 their own code, and will improve the test coverage for OpenSSL itself. At
837 some point, these tighter rules will become openssl's default to improve
838 maintainability, though the assert()s and other overheads will remain only
839 in debugging configurations. See bn.h for more details.
840 [Geoff Thorpe, Nils Larsch, Ulf Möller]
842 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
843 that can only be obtained through BN_CTX_new() (which implicitly
844 initialises it). The presence of this function only made it possible
845 to overwrite an existing structure (and cause memory leaks).
848 *) Because of the callback-based approach for implementing LHASH as a
849 template type, lh_insert() adds opaque objects to hash-tables and
850 lh_doall() or lh_doall_arg() are typically used with a destructor callback
851 to clean up those corresponding objects before destroying the hash table
852 (and losing the object pointers). So some over-zealous constifications in
853 LHASH have been relaxed so that lh_insert() does not take (nor store) the
854 objects as "const" and the lh_doall[_arg] callback wrappers are not
855 prototyped to have "const" restrictions on the object pointers they are
856 given (and so aren't required to cast them away any more).
859 *) The tmdiff.h API was so ugly and minimal that our own timing utility
860 (speed) prefers to use its own implementation. The two implementations
861 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
862 its object type properly exposed (MS_TM) instead of casting to/from "char
863 *". This may still change yet if someone realises MS_TM and "ms_time_***"
864 aren't necessarily the greatest nomenclatures - but this is what was used
865 internally to the implementation so I've used that for now.
868 *) Ensure that deprecated functions do not get compiled when
869 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
870 the self-tests were still using deprecated key-generation functions so
871 these have been updated also.
874 *) Reorganise PKCS#7 code to separate the digest location functionality
875 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
876 New function PKCS7_set_digest() to set the digest type for PKCS#7
877 digestedData type. Add additional code to correctly generate the
878 digestedData type and add support for this type in PKCS7 initialization
882 *) New function PKCS7_set0_type_other() this initializes a PKCS7
883 structure of type "other".
886 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
887 sure the loop does correctly stop and breaking ("division by zero")
888 modulus operations are not performed. The (pre-generated) prime
889 table crypto/bn/bn_prime.h was already correct, but it could not be
890 re-generated on some platforms because of the "division by zero"
891 situation in the script.
892 [Ralf S. Engelschall]
894 *) Update support for ECC-based TLS ciphersuites according to
895 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
896 SHA-1 now is only used for "small" curves (where the
897 representation of a field element takes up to 24 bytes); for
898 larger curves, the field element resulting from ECDH is directly
899 used as premaster secret.
900 [Douglas Stebila (Sun Microsystems Laboratories)]
902 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
903 curve secp160r1 to the tests.
904 [Douglas Stebila (Sun Microsystems Laboratories)]
906 *) Add the possibility to load symbols globally with DSO.
907 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
909 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
910 control of the error stack.
913 *) Add support for STORE in ENGINE.
916 *) Add the STORE type. The intention is to provide a common interface
917 to certificate and key stores, be they simple file-based stores, or
918 HSM-type store, or LDAP stores, or...
919 NOTE: The code is currently UNTESTED and isn't really used anywhere.
922 *) Add a generic structure called OPENSSL_ITEM. This can be used to
923 pass a list of arguments to any function as well as provide a way
924 for a function to pass data back to the caller.
927 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
928 works like BUF_strdup() but can be used to duplicate a portion of
929 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
933 *) Add the function sk_find_ex() which works like sk_find(), but will
934 return an index to an element even if an exact match couldn't be
935 found. The index is guaranteed to point at the element where the
936 searched-for key would be inserted to preserve sorting order.
939 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
940 takes an extra flags argument for optional functionality. Currently,
941 the following flags are defined:
943 OBJ_BSEARCH_VALUE_ON_NOMATCH
944 This one gets OBJ_bsearch_ex() to return a pointer to the first
945 element where the comparing function returns a negative or zero
948 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
949 This one gets OBJ_bsearch_ex() to return a pointer to the first
950 element where the comparing function returns zero. This is useful
951 if there are more than one element where the comparing function
955 *) Make it possible to create self-signed certificates with 'openssl ca'
956 in such a way that the self-signed certificate becomes part of the
957 CA database and uses the same mechanisms for serial number generation
958 as all other certificate signing. The new flag '-selfsign' enables
959 this functionality. Adapt CA.sh and CA.pl.in.
962 *) Add functionality to check the public key of a certificate request
963 against a given private. This is useful to check that a certificate
964 request can be signed by that key (self-signing).
967 *) Make it possible to have multiple active certificates with the same
968 subject in the CA index file. This is done only if the keyword
969 'unique_subject' is set to 'no' in the main CA section (default
970 if 'CA_default') of the configuration file. The value is saved
971 with the database itself in a separate index attribute file,
972 named like the index file with '.attr' appended to the name.
975 *) Generate muti valued AVAs using '+' notation in config files for
979 *) Support for nameConstraints certificate extension.
982 *) Support for policyConstraints certificate extension.
985 *) Support for policyMappings certificate extension.
988 *) Make sure the default DSA_METHOD implementation only uses its
989 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
990 and change its own handlers to be NULL so as to remove unnecessary
991 indirection. This lets alternative implementations fallback to the
992 default implementation more easily.
995 *) Support for directoryName in GeneralName related extensions
999 *) Make it possible to link applications using Makefile.shared.
1000 Make that possible even when linking against static libraries!
1003 *) Support for single pass processing for S/MIME signing. This now
1004 means that S/MIME signing can be done from a pipe, in addition
1005 cleartext signing (multipart/signed type) is effectively streaming
1006 and the signed data does not need to be all held in memory.
1008 This is done with a new flag PKCS7_STREAM. When this flag is set
1009 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
1010 is done after the data is output (and digests calculated) in
1011 SMIME_write_PKCS7().
1014 *) Add full support for -rpath/-R, both in shared libraries and
1015 applications, at least on the platforms where it's known how
1019 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
1020 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
1021 will now compute a table of multiples of the generator that
1022 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
1023 faster (notably in the case of a single point multiplication,
1024 scalar * generator).
1025 [Nils Larsch, Bodo Moeller]
1027 *) IPv6 support for certificate extensions. The various extensions
1028 which use the IP:a.b.c.d can now take IPv6 addresses using the
1029 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
1033 *) Added an ENGINE that implements RSA by performing private key
1034 exponentiations with the GMP library. The conversions to and from
1035 GMP's mpz_t format aren't optimised nor are any montgomery forms
1036 cached, and on x86 it appears OpenSSL's own performance has caught up.
1037 However there are likely to be other architectures where GMP could
1038 provide a boost. This ENGINE is not built in by default, but it can be
1039 specified at Configure time and should be accompanied by the necessary
1040 linker additions, eg;
1041 ./config -DOPENSSL_USE_GMP -lgmp
1044 *) "openssl engine" will not display ENGINE/DSO load failure errors when
1045 testing availability of engines with "-t" - the old behaviour is
1046 produced by increasing the feature's verbosity with "-tt".
1049 *) ECDSA routines: under certain error conditions uninitialized BN objects
1050 could be freed. Solution: make sure initialization is performed early
1051 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
1055 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
1056 and DH_METHOD (eg. by ENGINE implementations) to override the normal
1057 software implementations. For DSA and DH, parameter generation can
1058 also be overriden by providing the appropriate method callbacks.
1061 *) Change the "progress" mechanism used in key-generation and
1062 primality testing to functions that take a new BN_GENCB pointer in
1063 place of callback/argument pairs. The new API functions have "_ex"
1064 postfixes and the older functions are reimplemented as wrappers for
1065 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
1066 declarations of the old functions to help (graceful) attempts to
1067 migrate to the new functions. Also, the new key-generation API
1068 functions operate on a caller-supplied key-structure and return
1069 success/failure rather than returning a key or NULL - this is to
1070 help make "keygen" another member function of RSA_METHOD etc.
1072 Example for using the new callback interface:
1074 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
1078 BN_GENCB_set(&my_cb, my_callback, my_arg);
1080 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
1081 /* For the meaning of a, b in calls to my_callback(), see the
1082 * documentation of the function that calls the callback.
1083 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
1084 * my_callback should return 1 if it wants BN_is_prime_ex()
1085 * to continue, or 0 to stop.
1090 *) Change the ZLIB compression method to be stateful, and make it
1091 available to TLS with the number defined in
1092 draft-ietf-tls-compression-04.txt.
1095 *) Add the ASN.1 structures and functions for CertificatePair, which
1096 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
1098 CertificatePair ::= SEQUENCE {
1099 forward [0] Certificate OPTIONAL,
1100 reverse [1] Certificate OPTIONAL,
1101 -- at least one of the pair shall be present -- }
1103 Also implement the PEM functions to read and write certificate
1104 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
1106 This needed to be defined, mostly for the sake of the LDAP
1107 attribute crossCertificatePair, but may prove useful elsewhere as
1111 *) Make it possible to inhibit symlinking of shared libraries in
1112 Makefile.shared, for Cygwin's sake.
1115 *) Extend the BIGNUM API by creating a function
1116 void BN_set_negative(BIGNUM *a, int neg);
1117 and a macro that behave like
1118 int BN_is_negative(const BIGNUM *a);
1120 to avoid the need to access 'a->neg' directly in applications.
1123 *) Implement fast modular reduction for pseudo-Mersenne primes
1124 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
1125 EC_GROUP_new_curve_GFp() will now automatically use this
1127 [Nils Larsch <nla@trustcenter.de>]
1129 *) Add new lock type (CRYPTO_LOCK_BN).
1132 *) Change the ENGINE framework to automatically load engines
1133 dynamically from specific directories unless they could be
1134 found to already be built in or loaded. Move all the
1135 current engines except for the cryptodev one to a new
1137 The engines in engines/ are built as shared libraries if
1138 the "shared" options was given to ./Configure or ./config.
1139 Otherwise, they are inserted in libcrypto.a.
1140 /usr/local/ssl/engines is the default directory for dynamic
1141 engines, but that can be overriden at configure time through
1142 the usual use of --prefix and/or --openssldir, and at run
1143 time with the environment variable OPENSSL_ENGINES.
1144 [Geoff Thorpe and Richard Levitte]
1146 *) Add Makefile.shared, a helper makefile to build shared
1147 libraries. Addapt Makefile.org.
1150 *) Add version info to Win32 DLLs.
1151 [Peter 'Luna' Runestig" <peter@runestig.com>]
1153 *) Add new 'medium level' PKCS#12 API. Certificates and keys
1154 can be added using this API to created arbitrary PKCS#12
1155 files while avoiding the low level API.
1157 New options to PKCS12_create(), key or cert can be NULL and
1158 will then be omitted from the output file. The encryption
1159 algorithm NIDs can be set to -1 for no encryption, the mac
1160 iteration count can be set to 0 to omit the mac.
1162 Enhance pkcs12 utility by making the -nokeys and -nocerts
1163 options work when creating a PKCS#12 file. New option -nomac
1164 to omit the mac, NONE can be set for an encryption algorithm.
1165 New code is modified to use the enhanced PKCS12_create()
1166 instead of the low level API.
1169 *) Extend ASN1 encoder to support indefinite length constructed
1170 encoding. This can output sequences tags and octet strings in
1171 this form. Modify pk7_asn1.c to support indefinite length
1172 encoding. This is experimental and needs additional code to
1173 be useful, such as an ASN1 bio and some enhanced streaming
1176 Extend template encode functionality so that tagging is passed
1177 down to the template encoder.
1180 *) Let 'openssl req' fail if an argument to '-newkey' is not
1181 recognized instead of using RSA as a default.
1184 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
1185 As these are not official, they are not included in "ALL";
1186 the "ECCdraft" ciphersuite group alias can be used to select them.
1187 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
1189 *) Add ECDH engine support.
1190 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
1192 *) Add ECDH in new directory crypto/ecdh/.
1193 [Douglas Stebila (Sun Microsystems Laboratories)]
1195 *) Let BN_rand_range() abort with an error after 100 iterations
1196 without success (which indicates a broken PRNG).
1199 *) Change BN_mod_sqrt() so that it verifies that the input value
1200 is really the square of the return value. (Previously,
1201 BN_mod_sqrt would show GIGO behaviour.)
1204 *) Add named elliptic curves over binary fields from X9.62, SECG,
1205 and WAP/WTLS; add OIDs that were still missing.
1207 [Sheueling Chang Shantz and Douglas Stebila
1208 (Sun Microsystems Laboratories)]
1210 *) Extend the EC library for elliptic curves over binary fields
1211 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
1214 EC_GF2m_simple_method
1218 EC_GROUP_new_curve_GF2m
1219 EC_GROUP_set_curve_GF2m
1220 EC_GROUP_get_curve_GF2m
1221 EC_POINT_set_affine_coordinates_GF2m
1222 EC_POINT_get_affine_coordinates_GF2m
1223 EC_POINT_set_compressed_coordinates_GF2m
1225 Point compression for binary fields is disabled by default for
1226 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
1229 As binary polynomials are represented as BIGNUMs, various members
1230 of the EC_GROUP and EC_POINT data structures can be shared
1231 between the implementations for prime fields and binary fields;
1232 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
1233 are essentially identical to their ..._GFp counterparts.
1234 (For simplicity, the '..._GFp' prefix has been dropped from
1235 various internal method names.)
1237 An internal 'field_div' method (similar to 'field_mul' and
1238 'field_sqr') has been added; this is used only for binary fields.
1240 [Sheueling Chang Shantz and Douglas Stebila
1241 (Sun Microsystems Laboratories)]
1243 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
1244 through methods ('mul', 'precompute_mult').
1246 The generic implementations (now internally called 'ec_wNAF_mul'
1247 and 'ec_wNAF_precomputed_mult') remain the default if these
1248 methods are undefined.
1250 [Sheueling Chang Shantz and Douglas Stebila
1251 (Sun Microsystems Laboratories)]
1253 *) New function EC_GROUP_get_degree, which is defined through
1254 EC_METHOD. For curves over prime fields, this returns the bit
1255 length of the modulus.
1257 [Sheueling Chang Shantz and Douglas Stebila
1258 (Sun Microsystems Laboratories)]
1260 *) New functions EC_GROUP_dup, EC_POINT_dup.
1261 (These simply call ..._new and ..._copy).
1263 [Sheueling Chang Shantz and Douglas Stebila
1264 (Sun Microsystems Laboratories)]
1266 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
1267 Polynomials are represented as BIGNUMs (where the sign bit is not
1268 used) in the following functions [macros]:
1271 BN_GF2m_sub [= BN_GF2m_add]
1272 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
1273 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
1274 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
1276 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
1277 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
1278 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
1279 BN_GF2m_cmp [= BN_ucmp]
1281 (Note that only the 'mod' functions are actually for fields GF(2^m).
1282 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
1284 For some functions, an the irreducible polynomial defining a
1285 field can be given as an 'unsigned int[]' with strictly
1286 decreasing elements giving the indices of those bits that are set;
1287 i.e., p[] represents the polynomial
1288 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
1290 p[0] > p[1] > ... > p[k] = 0.
1291 This applies to the following functions:
1296 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
1297 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
1299 BN_GF2m_mod_sqrt_arr
1300 BN_GF2m_mod_solve_quad_arr
1304 Conversion can be performed by the following functions:
1309 bntest.c has additional tests for binary polynomial arithmetic.
1311 Two implementations for BN_GF2m_mod_div() are available.
1312 The default algorithm simply uses BN_GF2m_mod_inv() and
1313 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
1314 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
1315 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
1317 [Sheueling Chang Shantz and Douglas Stebila
1318 (Sun Microsystems Laboratories)]
1320 *) Add new error code 'ERR_R_DISABLED' that can be used when some
1321 functionality is disabled at compile-time.
1322 [Douglas Stebila <douglas.stebila@sun.com>]
1324 *) Change default behaviour of 'openssl asn1parse' so that more
1325 information is visible when viewing, e.g., a certificate:
1327 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
1328 mode the content of non-printable OCTET STRINGs is output in a
1329 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
1330 avoid the appearance of a printable string.
1331 [Nils Larsch <nla@trustcenter.de>]
1333 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
1335 EC_GROUP_set_asn1_flag()
1336 EC_GROUP_get_asn1_flag()
1337 EC_GROUP_set_point_conversion_form()
1338 EC_GROUP_get_point_conversion_form()
1339 These control ASN1 encoding details:
1340 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
1341 has been set to OPENSSL_EC_NAMED_CURVE.
1342 - Points are encoded in uncompressed form by default; options for
1343 asn1_for are as for point2oct, namely
1344 POINT_CONVERSION_COMPRESSED
1345 POINT_CONVERSION_UNCOMPRESSED
1346 POINT_CONVERSION_HYBRID
1348 Also add 'seed' and 'seed_len' members to EC_GROUP with access
1351 EC_GROUP_get0_seed()
1352 EC_GROUP_get_seed_len()
1353 This is used only for ASN1 purposes (so far).
1354 [Nils Larsch <nla@trustcenter.de>]
1356 *) Add 'field_type' member to EC_METHOD, which holds the NID
1357 of the appropriate field type OID. The new function
1358 EC_METHOD_get_field_type() returns this value.
1359 [Nils Larsch <nla@trustcenter.de>]
1364 EC_POINT_point2hex()
1365 EC_POINT_hex2point()
1366 providing useful interfaces to EC_POINT_point2oct() and
1367 EC_POINT_oct2point().
1368 [Nils Larsch <nla@trustcenter.de>]
1370 *) Change internals of the EC library so that the functions
1371 EC_GROUP_set_generator()
1372 EC_GROUP_get_generator()
1373 EC_GROUP_get_order()
1374 EC_GROUP_get_cofactor()
1375 are implemented directly in crypto/ec/ec_lib.c and not dispatched
1376 to methods, which would lead to unnecessary code duplication when
1377 adding different types of curves.
1378 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
1380 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
1381 arithmetic, and such that modified wNAFs are generated
1382 (which avoid length expansion in many cases).
1385 *) Add a function EC_GROUP_check_discriminant() (defined via
1386 EC_METHOD) that verifies that the curve discriminant is non-zero.
1388 Add a function EC_GROUP_check() that makes some sanity tests
1389 on a EC_GROUP, its generator and order. This includes
1390 EC_GROUP_check_discriminant().
1391 [Nils Larsch <nla@trustcenter.de>]
1393 *) Add ECDSA in new directory crypto/ecdsa/.
1395 Add applications 'openssl ecparam' and 'openssl ecdsa'
1396 (these are based on 'openssl dsaparam' and 'openssl dsa').
1398 ECDSA support is also included in various other files across the
1399 library. Most notably,
1400 - 'openssl req' now has a '-newkey ecdsa:file' option;
1401 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
1402 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
1403 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
1404 them suitable for ECDSA where domain parameters must be
1405 extracted before the specific public key;
1406 - ECDSA engine support has been added.
1407 [Nils Larsch <nla@trustcenter.de>]
1409 *) Include some named elliptic curves, and add OIDs from X9.62,
1410 SECG, and WAP/WTLS. Each curve can be obtained from the new
1412 EC_GROUP_new_by_curve_name(),
1413 and the list of available named curves can be obtained with
1414 EC_get_builtin_curves().
1415 Also add a 'curve_name' member to EC_GROUP objects, which can be
1417 EC_GROUP_set_curve_name()
1418 EC_GROUP_get_curve_name()
1419 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
1421 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
1422 was actually never needed) and in BN_mul(). The removal in BN_mul()
1423 required a small change in bn_mul_part_recursive() and the addition
1424 of the functions bn_cmp_part_words(), bn_sub_part_words() and
1425 bn_add_part_words(), which do the same thing as bn_cmp_words(),
1426 bn_sub_words() and bn_add_words() except they take arrays with
1430 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
1432 *) Introduce limits to prevent malicious keys being able to
1433 cause a denial of service. (CVE-2006-2940)
1434 [Steve Henson, Bodo Moeller]
1436 *) Fix ASN.1 parsing of certain invalid structures that can result
1437 in a denial of service. (CVE-2006-2937) [Steve Henson]
1439 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1440 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1442 *) Fix SSL client code which could crash if connecting to a
1443 malicious SSLv2 server. (CVE-2006-4343)
1444 [Tavis Ormandy and Will Drewry, Google Security Team]
1446 *) Change ciphersuite string processing so that an explicit
1447 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
1448 will no longer include "AES128-SHA"), and any other similar
1449 ciphersuite (same bitmap) from *other* protocol versions (so that
1450 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
1451 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
1452 changes from 0.9.8b and 0.9.8d.
1455 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
1457 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1458 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1460 *) Change the Unix randomness entropy gathering to use poll() when
1461 possible instead of select(), since the latter has some
1462 undesirable limitations.
1463 [Darryl Miles via Richard Levitte and Bodo Moeller]
1465 *) Disable rogue ciphersuites:
1467 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1468 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1469 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1471 The latter two were purportedly from
1472 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1475 Also deactive the remaining ciphersuites from
1476 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1477 unofficial, and the ID has long expired.
1480 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1481 dual-core machines) and other potential thread-safety issues.
1484 Changes between 0.9.7i and 0.9.7j [04 May 2006]
1486 *) Adapt fipsld and the build system to link against the validated FIPS
1487 module in FIPS mode.
1490 *) Fixes for VC++ 2005 build under Windows.
1493 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
1494 from a Windows bash shell such as MSYS. It is autodetected from the
1495 "config" script when run from a VC++ environment. Modify standard VC++
1496 build to use fipscanister.o from the GNU make build.
1499 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
1501 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
1502 The value now differs depending on if you build for FIPS or not.
1503 BEWARE! A program linked with a shared FIPSed libcrypto can't be
1504 safely run with a non-FIPSed libcrypto, as it may crash because of
1505 the difference induced by this change.
1508 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
1510 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1511 (part of SSL_OP_ALL). This option used to disable the
1512 countermeasure against man-in-the-middle protocol-version
1513 rollback in the SSL 2.0 server implementation, which is a bad
1514 idea. (CVE-2005-2969)
1516 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1517 for Information Security, National Institute of Advanced Industrial
1518 Science and Technology [AIST], Japan)]
1520 *) Minimal support for X9.31 signatures and PSS padding modes. This is
1521 mainly for FIPS compliance and not fully integrated at this stage.
1524 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
1525 the exponentiation using a fixed-length exponent. (Otherwise,
1526 the information leaked through timing could expose the secret key
1527 after many signatures; cf. Bleichenbacher's attack on DSA with
1531 *) Make a new fixed-window mod_exp implementation the default for
1532 RSA, DSA, and DH private-key operations so that the sequence of
1533 squares and multiplies and the memory access pattern are
1534 independent of the particular secret key. This will mitigate
1535 cache-timing and potential related attacks.
1537 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
1538 and this is automatically used by BN_mod_exp_mont() if the new flag
1539 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
1540 will use this BN flag for private exponents unless the flag
1541 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
1542 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
1544 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
1546 *) Change the client implementation for SSLv23_method() and
1547 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
1548 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
1549 (Previously, the SSL 2.0 backwards compatible Client Hello
1550 message format would be used even with SSL_OP_NO_SSLv2.)
1553 *) Add support for smime-type MIME parameter in S/MIME messages which some
1557 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
1558 a threadsafe manner. Modify rsa code to use new function and add calls
1559 to dsa and dh code (which had race conditions before).
1562 *) Include the fixed error library code in the C error file definitions
1563 instead of fixing them up at runtime. This keeps the error code
1564 structures constant.
1567 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
1569 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
1572 *) Fixes for newer kerberos headers. NB: the casts are needed because
1573 the 'length' field is signed on one version and unsigned on another
1574 with no (?) obvious way to tell the difference, without these VC++
1575 complains. Also the "definition" of FAR (blank) is no longer included
1576 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
1577 some needed definitions.
1580 *) Undo Cygwin change.
1583 *) Added support for proxy certificates according to RFC 3820.
1584 Because they may be a security thread to unaware applications,
1585 they must be explicitely allowed in run-time. See
1586 docs/HOWTO/proxy_certificates.txt for further information.
1589 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
1591 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
1592 server and client random values. Previously
1593 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
1594 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
1596 This change has negligible security impact because:
1598 1. Server and client random values still have 24 bytes of pseudo random
1601 2. Server and client random values are sent in the clear in the initial
1604 3. The master secret is derived using the premaster secret (48 bytes in
1605 size for static RSA ciphersuites) as well as client server and random
1608 The OpenSSL team would like to thank the UK NISCC for bringing this issue
1611 [Stephen Henson, reported by UK NISCC]
1613 *) Use Windows randomness collection on Cygwin.
1616 *) Fix hang in EGD/PRNGD query when communication socket is closed
1617 prematurely by EGD/PRNGD.
1618 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
1620 *) Prompt for pass phrases when appropriate for PKCS12 input format.
1623 *) Back-port of selected performance improvements from development
1624 branch, as well as improved support for PowerPC platforms.
1627 *) Add lots of checks for memory allocation failure, error codes to indicate
1628 failure and freeing up memory if a failure occurs.
1629 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
1631 *) Add new -passin argument to dgst.
1634 *) Perform some character comparisons of different types in X509_NAME_cmp:
1635 this is needed for some certificates that reencode DNs into UTF8Strings
1636 (in violation of RFC3280) and can't or wont issue name rollover
1640 *) Make an explicit check during certificate validation to see that
1641 the CA setting in each certificate on the chain is correct. As a
1642 side effect always do the following basic checks on extensions,
1643 not just when there's an associated purpose to the check:
1645 - if there is an unhandled critical extension (unless the user
1646 has chosen to ignore this fault)
1647 - if the path length has been exceeded (if one is set at all)
1648 - that certain extensions fit the associated purpose (if one has
1652 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
1654 *) Avoid a race condition when CRLs are checked in a multi threaded
1655 environment. This would happen due to the reordering of the revoked
1656 entries during signature checking and serial number lookup. Now the
1657 encoding is cached and the serial number sort performed under a lock.
1658 Add new STACK function sk_is_sorted().
1661 *) Add Delta CRL to the extension code.
1664 *) Various fixes to s3_pkt.c so alerts are sent properly.
1665 [David Holmes <d.holmes@f5.com>]
1667 *) Reduce the chances of duplicate issuer name and serial numbers (in
1668 violation of RFC3280) using the OpenSSL certificate creation utilities.
1669 This is done by creating a random 64 bit value for the initial serial
1670 number when a serial number file is created or when a self signed
1671 certificate is created using 'openssl req -x509'. The initial serial
1672 number file is created using 'openssl x509 -next_serial' in CA.pl
1673 rather than being initialized to 1.
1676 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
1678 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
1679 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
1680 [Joe Orton, Steve Henson]
1682 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
1684 [Joe Orton, Steve Henson]
1686 *) Make it possible to have multiple active certificates with the same
1687 subject in the CA index file. This is done only if the keyword
1688 'unique_subject' is set to 'no' in the main CA section (default
1689 if 'CA_default') of the configuration file. The value is saved
1690 with the database itself in a separate index attribute file,
1691 named like the index file with '.attr' appended to the name.
1694 *) X509 verify fixes. Disable broken certificate workarounds when
1695 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
1696 keyUsage extension present. Don't accept CRLs with unhandled critical
1697 extensions: since verify currently doesn't process CRL extensions this
1698 rejects a CRL with *any* critical extensions. Add new verify error codes
1702 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
1703 A clarification of RFC2560 will require the use of OCTET STRINGs and
1704 some implementations cannot handle the current raw format. Since OpenSSL
1705 copies and compares OCSP nonces as opaque blobs without any attempt at
1706 parsing them this should not create any compatibility issues.
1709 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
1710 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
1711 this HMAC (and other) operations are several times slower than OpenSSL
1715 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
1716 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1718 *) Use the correct content when signing type "other".
1721 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
1723 *) Fix various bugs revealed by running the NISCC test suite:
1725 Stop out of bounds reads in the ASN1 code when presented with
1726 invalid tags (CVE-2003-0543 and CVE-2003-0544).
1728 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
1730 If verify callback ignores invalid public key errors don't try to check
1731 certificate signature with the NULL public key.
1735 *) New -ignore_err option in ocsp application to stop the server
1736 exiting on the first error in a request.
1739 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
1740 if the server requested one: as stated in TLS 1.0 and SSL 3.0
1744 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
1745 extra data after the compression methods not only for TLS 1.0
1746 but also for SSL 3.0 (as required by the specification).
1747 [Bodo Moeller; problem pointed out by Matthias Loepfe]
1749 *) Change X509_certificate_type() to mark the key as exported/exportable
1750 when it's 512 *bits* long, not 512 bytes.
1753 *) Change AES_cbc_encrypt() so it outputs exact multiple of
1754 blocks during encryption.
1757 *) Various fixes to base64 BIO and non blocking I/O. On write
1758 flushes were not handled properly if the BIO retried. On read
1759 data was not being buffered properly and had various logic bugs.
1760 This also affects blocking I/O when the data being decoded is a
1764 *) Various S/MIME bugfixes and compatibility changes:
1765 output correct application/pkcs7 MIME type if
1766 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
1767 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
1768 of files as .eml work). Correctly handle very long lines in MIME
1772 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
1774 *) Countermeasure against the Klima-Pokorny-Rosa extension of
1775 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
1776 a protocol version number mismatch like a decryption error
1777 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
1780 *) Turn on RSA blinding by default in the default implementation
1781 to avoid a timing attack. Applications that don't want it can call
1782 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
1783 They would be ill-advised to do so in most cases.
1784 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
1786 *) Change RSA blinding code so that it works when the PRNG is not
1787 seeded (in this case, the secret RSA exponent is abused as
1788 an unpredictable seed -- if it is not unpredictable, there
1789 is no point in blinding anyway). Make RSA blinding thread-safe
1790 by remembering the creator's thread ID in rsa->blinding and
1791 having all other threads use local one-time blinding factors
1792 (this requires more computation than sharing rsa->blinding, but
1793 avoids excessive locking; and if an RSA object is not shared
1794 between threads, blinding will still be very fast).
1797 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
1798 ENGINE as defaults for all supported algorithms irrespective of
1799 the 'flags' parameter. 'flags' is now honoured, so applications
1800 should make sure they are passing it correctly.
1803 *) Target "mingw" now allows native Windows code to be generated in
1804 the Cygwin environment as well as with the MinGW compiler.
1807 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
1809 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
1810 via timing by performing a MAC computation even if incorrrect
1811 block cipher padding has been found. This is a countermeasure
1812 against active attacks where the attacker has to distinguish
1813 between bad padding and a MAC verification error. (CVE-2003-0078)
1815 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
1816 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
1817 Martin Vuagnoux (EPFL, Ilion)]
1819 *) Make the no-err option work as intended. The intention with no-err
1820 is not to have the whole error stack handling routines removed from
1821 libcrypto, it's only intended to remove all the function name and
1822 reason texts, thereby removing some of the footprint that may not
1823 be interesting if those errors aren't displayed anyway.
1825 NOTE: it's still possible for any application or module to have it's
1826 own set of error texts inserted. The routines are there, just not
1827 used by default when no-err is given.
1830 *) Add support for FreeBSD on IA64.
1831 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
1833 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
1834 Kerberos function mit_des_cbc_cksum(). Before this change,
1835 the value returned by DES_cbc_cksum() was like the one from
1836 mit_des_cbc_cksum(), except the bytes were swapped.
1837 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
1839 *) Allow an application to disable the automatic SSL chain building.
1840 Before this a rather primitive chain build was always performed in
1841 ssl3_output_cert_chain(): an application had no way to send the
1842 correct chain if the automatic operation produced an incorrect result.
1844 Now the chain builder is disabled if either:
1846 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
1848 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
1850 The reasoning behind this is that an application would not want the
1851 auto chain building to take place if extra chain certificates are
1852 present and it might also want a means of sending no additional
1853 certificates (for example the chain has two certificates and the
1857 *) Add the possibility to build without the ENGINE framework.
1858 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1860 *) Under Win32 gmtime() can return NULL: check return value in
1861 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
1864 *) DSA routines: under certain error conditions uninitialized BN objects
1865 could be freed. Solution: make sure initialization is performed early
1866 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
1867 Nils Larsch <nla@trustcenter.de> via PR#459)
1870 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
1871 checked on reconnect on the client side, therefore session resumption
1872 could still fail with a "ssl session id is different" error. This
1873 behaviour is masked when SSL_OP_ALL is used due to
1874 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
1875 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1876 followup to PR #377.
1879 *) IA-32 assembler support enhancements: unified ELF targets, support
1880 for SCO/Caldera platforms, fix for Cygwin shared build.
1883 *) Add support for FreeBSD on sparc64. As a consequence, support for
1884 FreeBSD on non-x86 processors is separate from x86 processors on
1885 the config script, much like the NetBSD support.
1886 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
1888 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
1890 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
1893 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
1894 code (06) was taken as the first octet of the session ID and the last
1895 octet was ignored consequently. As a result SSLv2 client side session
1896 caching could not have worked due to the session ID mismatch between
1898 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1902 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
1903 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
1907 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
1908 seems that in spite of existing for more than a year, many application
1909 author have done nothing to provide the necessary callbacks, which
1910 means that this particular engine will not work properly anywhere.
1911 This is a very unfortunate situation which forces us, in the name
1912 of usability, to give the hw_ncipher.c a static lock, which is part
1914 NOTE: This is for the 0.9.7 series ONLY. This hack will never
1915 appear in 0.9.8 or later. We EXPECT application authors to have
1916 dealt properly with this when 0.9.8 is released (unless we actually
1917 make such changes in the libcrypto locking code that changes will
1918 have to be made anyway).
1921 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
1922 octets have been read, EOF or an error occurs. Without this change
1923 some truncated ASN1 structures will not produce an error.
1926 *) Disable Heimdal support, since it hasn't been fully implemented.
1927 Still give the possibility to force the use of Heimdal, but with
1928 warnings and a request that patches get sent to openssl-dev.
1931 *) Add the VC-CE target, introduce the WINCE sysname, and add
1932 INSTALL.WCE and appropriate conditionals to make it build.
1933 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1935 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
1936 cygssl-x.y.z.dll, where x, y and z are the major, minor and
1937 edit numbers of the version.
1938 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
1940 *) Introduce safe string copy and catenation functions
1941 (BUF_strlcpy() and BUF_strlcat()).
1942 [Ben Laurie (CHATS) and Richard Levitte]
1944 *) Avoid using fixed-size buffers for one-line DNs.
1945 [Ben Laurie (CHATS)]
1947 *) Add BUF_MEM_grow_clean() to avoid information leakage when
1948 resizing buffers containing secrets, and use where appropriate.
1949 [Ben Laurie (CHATS)]
1951 *) Avoid using fixed size buffers for configuration file location.
1952 [Ben Laurie (CHATS)]
1954 *) Avoid filename truncation for various CA files.
1955 [Ben Laurie (CHATS)]
1957 *) Use sizeof in preference to magic numbers.
1958 [Ben Laurie (CHATS)]
1960 *) Avoid filename truncation in cert requests.
1961 [Ben Laurie (CHATS)]
1963 *) Add assertions to check for (supposedly impossible) buffer
1965 [Ben Laurie (CHATS)]
1967 *) Don't cache truncated DNS entries in the local cache (this could
1968 potentially lead to a spoofing attack).
1969 [Ben Laurie (CHATS)]
1971 *) Fix various buffers to be large enough for hex/decimal
1972 representations in a platform independent manner.
1973 [Ben Laurie (CHATS)]
1975 *) Add CRYPTO_realloc_clean() to avoid information leakage when
1976 resizing buffers containing secrets, and use where appropriate.
1977 [Ben Laurie (CHATS)]
1979 *) Add BIO_indent() to avoid much slightly worrying code to do
1981 [Ben Laurie (CHATS)]
1983 *) Convert sprintf()/BIO_puts() to BIO_printf().
1984 [Ben Laurie (CHATS)]
1986 *) buffer_gets() could terminate with the buffer only half
1988 [Ben Laurie (CHATS)]
1990 *) Add assertions to prevent user-supplied crypto functions from
1991 overflowing internal buffers by having large block sizes, etc.
1992 [Ben Laurie (CHATS)]
1994 *) New OPENSSL_assert() macro (similar to assert(), but enabled
1996 [Ben Laurie (CHATS)]
1998 *) Eliminate unused copy of key in RC4.
1999 [Ben Laurie (CHATS)]
2001 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
2002 [Ben Laurie (CHATS)]
2004 *) Fix off-by-one error in EGD path.
2005 [Ben Laurie (CHATS)]
2007 *) If RANDFILE path is too long, ignore instead of truncating.
2008 [Ben Laurie (CHATS)]
2010 *) Eliminate unused and incorrectly sized X.509 structure
2012 [Ben Laurie (CHATS)]
2014 *) Eliminate unused and dangerous function knumber().
2015 [Ben Laurie (CHATS)]
2017 *) Eliminate unused and dangerous structure, KSSL_ERR.
2018 [Ben Laurie (CHATS)]
2020 *) Protect against overlong session ID context length in an encoded
2021 session object. Since these are local, this does not appear to be
2023 [Ben Laurie (CHATS)]
2025 *) Change from security patch (see 0.9.6e below) that did not affect
2026 the 0.9.6 release series:
2028 Remote buffer overflow in SSL3 protocol - an attacker could
2029 supply an oversized master key in Kerberos-enabled versions.
2031 [Ben Laurie (CHATS)]
2033 *) Change the SSL kerb5 codes to match RFC 2712.
2036 *) Make -nameopt work fully for req and add -reqopt switch.
2037 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
2039 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
2040 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
2042 *) Make sure tests can be performed even if the corresponding algorithms
2043 have been removed entirely. This was also the last step to make
2044 OpenSSL compilable with DJGPP under all reasonable conditions.
2045 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
2047 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
2048 to allow version independent disabling of normally unselected ciphers,
2049 which may be activated as a side-effect of selecting a single cipher.
2051 (E.g., cipher list string "RSA" enables ciphersuites that are left
2052 out of "ALL" because they do not provide symmetric encryption.
2053 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
2054 [Lutz Jaenicke, Bodo Moeller]
2056 *) Add appropriate support for separate platform-dependent build
2057 directories. The recommended way to make a platform-dependent
2058 build directory is the following (tested on Linux), maybe with
2061 # Place yourself outside of the OpenSSL source tree. In
2062 # this example, the environment variable OPENSSL_SOURCE
2063 # is assumed to contain the absolute OpenSSL source directory.
2064 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
2065 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
2066 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
2067 mkdir -p `dirname $F`
2068 ln -s $OPENSSL_SOURCE/$F $F
2071 To be absolutely sure not to disturb the source tree, a "make clean"
2072 is a good thing. If it isn't successfull, don't worry about it,
2073 it probably means the source directory is very clean.
2076 *) Make sure any ENGINE control commands make local copies of string
2077 pointers passed to them whenever necessary. Otherwise it is possible
2078 the caller may have overwritten (or deallocated) the original string
2079 data when a later ENGINE operation tries to use the stored values.
2080 [Götz Babin-Ebell <babinebell@trustcenter.de>]
2082 *) Improve diagnostics in file reading and command-line digests.
2083 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
2085 *) Add AES modes CFB and OFB to the object database. Correct an
2086 error in AES-CFB decryption.
2089 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
2090 allows existing EVP_CIPHER_CTX structures to be reused after
2091 calling EVP_*Final(). This behaviour is used by encryption
2092 BIOs and some applications. This has the side effect that
2093 applications must explicitly clean up cipher contexts with
2094 EVP_CIPHER_CTX_cleanup() or they will leak memory.
2097 *) Check the values of dna and dnb in bn_mul_recursive before calling
2098 bn_mul_comba (a non zero value means the a or b arrays do not contain
2099 n2 elements) and fallback to bn_mul_normal if either is not zero.
2102 *) Fix escaping of non-ASCII characters when using the -subj option
2103 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
2106 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
2107 form for "surname", serialNumber has no short form.
2108 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
2109 therefore remove "mail" short name for "internet 7".
2110 The OID for unique identifiers in X509 certificates is
2111 x500UniqueIdentifier, not uniqueIdentifier.
2112 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
2115 *) Add an "init" command to the ENGINE config module and auto initialize
2116 ENGINEs. Without any "init" command the ENGINE will be initialized
2117 after all ctrl commands have been executed on it. If init=1 the
2118 ENGINE is initailized at that point (ctrls before that point are run
2119 on the uninitialized ENGINE and after on the initialized one). If
2120 init=0 then the ENGINE will not be iniatialized at all.
2123 *) Fix the 'app_verify_callback' interface so that the user-defined
2124 argument is actually passed to the callback: In the
2125 SSL_CTX_set_cert_verify_callback() prototype, the callback
2126 declaration has been changed from
2129 int (*cb)(X509_STORE_CTX *,void *);
2130 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
2131 i=s->ctx->app_verify_callback(&ctx)
2132 has been changed into
2133 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
2135 To update applications using SSL_CTX_set_cert_verify_callback(),
2136 a dummy argument can be added to their callback functions.
2137 [D. K. Smetters <smetters@parc.xerox.com>]
2139 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
2140 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
2142 *) Add and OPENSSL_LOAD_CONF define which will cause
2143 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
2144 This allows older applications to transparently support certain
2145 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
2146 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
2147 load the config file and OPENSSL_add_all_algorithms_conf() which will
2148 always load it have also been added.
2151 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
2152 Adjust NIDs and EVP layer.
2153 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2155 *) Config modules support in openssl utility.
2157 Most commands now load modules from the config file,
2158 though in a few (such as version) this isn't done
2159 because it couldn't be used for anything.
2161 In the case of ca and req the config file used is
2162 the same as the utility itself: that is the -config
2163 command line option can be used to specify an
2167 *) Move default behaviour from OPENSSL_config(). If appname is NULL
2168 use "openssl_conf" if filename is NULL use default openssl config file.
2171 *) Add an argument to OPENSSL_config() to allow the use of an alternative
2172 config section name. Add a new flag to tolerate a missing config file
2173 and move code to CONF_modules_load_file().
2176 *) Support for crypto accelerator cards from Accelerated Encryption
2177 Processing, www.aep.ie. (Use engine 'aep')
2178 The support was copied from 0.9.6c [engine] and adapted/corrected
2179 to work with the new engine framework.
2180 [AEP Inc. and Richard Levitte]
2182 *) Support for SureWare crypto accelerator cards from Baltimore
2183 Technologies. (Use engine 'sureware')
2184 The support was copied from 0.9.6c [engine] and adapted
2185 to work with the new engine framework.
2188 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
2189 make the newer ENGINE framework commands for the CHIL engine work.
2190 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
2192 *) Make it possible to produce shared libraries on ReliantUNIX.
2193 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
2195 *) Add the configuration target debug-linux-ppro.
2196 Make 'openssl rsa' use the general key loading routines
2197 implemented in apps.c, and make those routines able to
2198 handle the key format FORMAT_NETSCAPE and the variant
2200 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2202 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
2203 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2205 *) Add -keyform to rsautl, and document -engine.
2206 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
2208 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
2209 BIO_R_NO_SUCH_FILE error code rather than the generic
2210 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
2213 *) Add new functions
2215 ERR_peek_last_error_line
2216 ERR_peek_last_error_line_data.
2217 These are similar to
2220 ERR_peek_error_line_data,
2221 but report on the latest error recorded rather than the first one
2222 still in the error queue.
2223 [Ben Laurie, Bodo Moeller]
2225 *) default_algorithms option in ENGINE config module. This allows things
2227 default_algorithms = ALL
2228 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
2231 *) Prelminary ENGINE config module.
2234 *) New experimental application configuration code.
2237 *) Change the AES code to follow the same name structure as all other
2238 symmetric ciphers, and behave the same way. Move everything to
2239 the directory crypto/aes, thereby obsoleting crypto/rijndael.
2240 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2242 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
2243 [Ben Laurie and Theo de Raadt]
2245 *) Add option to output public keys in req command.
2246 [Massimiliano Pala madwolf@openca.org]
2248 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
2249 (up to about 10% better than before for P-192 and P-224).
2252 *) New functions/macros
2254 SSL_CTX_set_msg_callback(ctx, cb)
2255 SSL_CTX_set_msg_callback_arg(ctx, arg)
2256 SSL_set_msg_callback(ssl, cb)
2257 SSL_set_msg_callback_arg(ssl, arg)
2259 to request calling a callback function
2261 void cb(int write_p, int version, int content_type,
2262 const void *buf, size_t len, SSL *ssl, void *arg)
2264 whenever a protocol message has been completely received
2265 (write_p == 0) or sent (write_p == 1). Here 'version' is the
2266 protocol version according to which the SSL library interprets
2267 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
2268 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
2269 the content type as defined in the SSL 3.0/TLS 1.0 protocol
2270 specification (change_cipher_spec(20), alert(21), handshake(22)).
2271 'buf' and 'len' point to the actual message, 'ssl' to the
2272 SSL object, and 'arg' is the application-defined value set by
2273 SSL[_CTX]_set_msg_callback_arg().
2275 'openssl s_client' and 'openssl s_server' have new '-msg' options
2276 to enable a callback that displays all protocol messages.
2279 *) Change the shared library support so shared libraries are built as
2280 soon as the corresponding static library is finished, and thereby get
2281 openssl and the test programs linked against the shared library.
2282 This still only happens when the keyword "shard" has been given to
2283 the configuration scripts.
2285 NOTE: shared library support is still an experimental thing, and
2286 backward binary compatibility is still not guaranteed.
2287 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
2289 *) Add support for Subject Information Access extension.
2290 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2292 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
2293 additional bytes when new memory had to be allocated, not just
2294 when reusing an existing buffer.
2297 *) New command line and configuration option 'utf8' for the req command.
2298 This allows field values to be specified as UTF8 strings.
2301 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
2302 runs for the former and machine-readable output for the latter.
2305 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
2306 of the e-mail address in the DN (i.e., it will go into a certificate
2307 extension only). The new configuration file option 'email_in_dn = no'
2308 has the same effect.
2309 [Massimiliano Pala madwolf@openca.org]
2311 *) Change all functions with names starting with des_ to be starting
2312 with DES_ instead. Add wrappers that are compatible with libdes,
2313 but are named _ossl_old_des_*. Finally, add macros that map the
2314 des_* symbols to the corresponding _ossl_old_des_* if libdes
2315 compatibility is desired. If OpenSSL 0.9.6c compatibility is
2316 desired, the des_* symbols will be mapped to DES_*, with one
2319 Since we provide two compatibility mappings, the user needs to
2320 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
2321 compatibility is desired. The default (i.e., when that macro
2322 isn't defined) is OpenSSL 0.9.6c compatibility.
2324 There are also macros that enable and disable the support of old
2325 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
2326 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
2327 are defined, the default will apply: to support the old des routines.
2329 In either case, one must include openssl/des.h to get the correct
2330 definitions. Do not try to just include openssl/des_old.h, that
2333 NOTE: This is a major break of an old API into a new one. Software
2334 authors are encouraged to switch to the DES_ style functions. Some
2335 time in the future, des_old.h and the libdes compatibility functions
2336 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
2337 default), and then completely removed.
2340 *) Test for certificates which contain unsupported critical extensions.
2341 If such a certificate is found during a verify operation it is
2342 rejected by default: this behaviour can be overridden by either
2343 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
2344 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
2345 X509_supported_extension() has also been added which returns 1 if a
2346 particular extension is supported.
2349 *) Modify the behaviour of EVP cipher functions in similar way to digests
2350 to retain compatibility with existing code.
2353 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
2354 compatibility with existing code. In particular the 'ctx' parameter does
2355 not have to be to be initialized before the call to EVP_DigestInit() and
2356 it is tidied up after a call to EVP_DigestFinal(). New function
2357 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
2358 EVP_MD_CTX_copy() changed to not require the destination to be
2359 initialized valid and new function EVP_MD_CTX_copy_ex() added which
2360 requires the destination to be valid.
2362 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
2363 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
2366 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
2367 so that complete 'Handshake' protocol structures are kept in memory
2368 instead of overwriting 'msg_type' and 'length' with 'body' data.
2371 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
2372 [Massimo Santin via Richard Levitte]
2374 *) Major restructuring to the underlying ENGINE code. This includes
2375 reduction of linker bloat, separation of pure "ENGINE" manipulation
2376 (initialisation, etc) from functionality dealing with implementations
2377 of specific crypto iterfaces. This change also introduces integrated
2378 support for symmetric ciphers and digest implementations - so ENGINEs
2379 can now accelerate these by providing EVP_CIPHER and EVP_MD
2380 implementations of their own. This is detailed in crypto/engine/README
2381 as it couldn't be adequately described here. However, there are a few
2382 API changes worth noting - some RSA, DSA, DH, and RAND functions that
2383 were changed in the original introduction of ENGINE code have now
2384 reverted back - the hooking from this code to ENGINE is now a good
2385 deal more passive and at run-time, operations deal directly with
2386 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
2387 dereferencing through an ENGINE pointer any more. Also, the ENGINE
2388 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
2389 they were not being used by the framework as there is no concept of a
2390 BIGNUM_METHOD and they could not be generalised to the new
2391 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
2392 ENGINE_cpy() has been removed as it cannot be consistently defined in
2396 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
2399 *) Change mkdef.pl to sort symbols that get the same entry number,
2400 and make sure the automatically generated functions ERR_load_*
2401 become part of libeay.num as well.
2404 *) New function SSL_renegotiate_pending(). This returns true once
2405 renegotiation has been requested (either SSL_renegotiate() call
2406 or HelloRequest/ClientHello receveived from the peer) and becomes
2407 false once a handshake has been completed.
2408 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
2409 sends a HelloRequest, but does not ensure that a handshake takes
2410 place. SSL_renegotiate_pending() is useful for checking if the
2411 client has followed the request.)
2414 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
2415 By default, clients may request session resumption even during
2416 renegotiation (if session ID contexts permit); with this option,
2417 session resumption is possible only in the first handshake.
2419 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
2420 more bits available for options that should not be part of
2421 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
2424 *) Add some demos for certificate and certificate request creation.
2427 *) Make maximum certificate chain size accepted from the peer application
2428 settable (SSL*_get/set_max_cert_list()), as proposed by
2429 "Douglas E. Engert" <deengert@anl.gov>.
2432 *) Add support for shared libraries for Unixware-7
2433 (Boyd Lynn Gerber <gerberb@zenez.com>).
2436 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
2437 be done prior to destruction. Use this to unload error strings from
2438 ENGINEs that load their own error strings. NB: This adds two new API
2439 functions to "get" and "set" this destroy handler in an ENGINE.
2442 *) Alter all existing ENGINE implementations (except "openssl" and
2443 "openbsd") to dynamically instantiate their own error strings. This
2444 makes them more flexible to be built both as statically-linked ENGINEs
2445 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
2446 Also, add stub code to each that makes building them as self-contained
2447 shared-libraries easier (see README.ENGINE).
2450 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
2451 implementations into applications that are completely implemented in
2452 self-contained shared-libraries. The "dynamic" ENGINE exposes control
2453 commands that can be used to configure what shared-library to load and
2454 to control aspects of the way it is handled. Also, made an update to
2455 the README.ENGINE file that brings its information up-to-date and
2456 provides some information and instructions on the "dynamic" ENGINE
2457 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
2460 *) Make it possible to unload ranges of ERR strings with a new
2461 "ERR_unload_strings" function.
2464 *) Add a copy() function to EVP_MD.
2467 *) Make EVP_MD routines take a context pointer instead of just the
2468 md_data void pointer.
2471 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
2472 that the digest can only process a single chunk of data
2473 (typically because it is provided by a piece of
2474 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
2475 is only going to provide a single chunk of data, and hence the
2476 framework needn't accumulate the data for oneshot drivers.
2479 *) As with "ERR", make it possible to replace the underlying "ex_data"
2480 functions. This change also alters the storage and management of global
2481 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
2482 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
2483 index counters. The API functions that use this state have been changed
2484 to take a "class_index" rather than pointers to the class's local STACK
2485 and counter, and there is now an API function to dynamically create new
2486 classes. This centralisation allows us to (a) plug a lot of the
2487 thread-safety problems that existed, and (b) makes it possible to clean
2488 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
2489 such data would previously have always leaked in application code and
2490 workarounds were in place to make the memory debugging turn a blind eye
2491 to it. Application code that doesn't use this new function will still
2492 leak as before, but their memory debugging output will announce it now
2493 rather than letting it slide.
2495 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
2496 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
2497 has a return value to indicate success or failure.
2500 *) Make it possible to replace the underlying "ERR" functions such that the
2501 global state (2 LHASH tables and 2 locks) is only used by the "default"
2502 implementation. This change also adds two functions to "get" and "set"
2503 the implementation prior to it being automatically set the first time
2504 any other ERR function takes place. Ie. an application can call "get",
2505 pass the return value to a module it has just loaded, and that module
2506 can call its own "set" function using that value. This means the
2507 module's "ERR" operations will use (and modify) the error state in the
2508 application and not in its own statically linked copy of OpenSSL code.
2511 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
2512 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
2513 the operation, and provides a more encapsulated way for external code
2514 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
2515 to use these functions rather than manually incrementing the counts.
2517 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
2520 *) Add EVP test program.
2523 *) Add symmetric cipher support to ENGINE. Expect the API to change!
2526 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
2527 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
2528 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
2529 These allow a CRL to be built without having to access X509_CRL fields
2530 directly. Modify 'ca' application to use new functions.
2533 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
2534 bug workarounds. Rollback attack detection is a security feature.
2535 The problem will only arise on OpenSSL servers when TLSv1 is not
2536 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
2537 Software authors not wanting to support TLSv1 will have special reasons
2538 for their choice and can explicitly enable this option.
2539 [Bodo Moeller, Lutz Jaenicke]
2541 *) Rationalise EVP so it can be extended: don't include a union of
2542 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
2543 (similar to those existing for EVP_CIPHER_CTX).
2548 EVP_MD_CTX_init(&md); /* new function call */
2549 EVP_DigestInit(&md, EVP_sha1());
2550 EVP_DigestUpdate(&md, in, len);
2551 EVP_DigestFinal(&md, out, NULL);
2552 EVP_MD_CTX_cleanup(&md); /* new function call */
2556 *) Make DES key schedule conform to the usual scheme, as well as
2557 correcting its structure. This means that calls to DES functions
2558 now have to pass a pointer to a des_key_schedule instead of a
2559 plain des_key_schedule (which was actually always a pointer
2562 des_key_schedule ks;
2564 des_set_key_checked(..., &ks);
2565 des_ncbc_encrypt(..., &ks, ...);
2567 (Note that a later change renames 'des_...' into 'DES_...'.)
2570 *) Initial reduction of linker bloat: the use of some functions, such as
2571 PEM causes large amounts of unused functions to be linked in due to
2572 poor organisation. For example pem_all.c contains every PEM function
2573 which has a knock on effect of linking in large amounts of (unused)
2574 ASN1 code. Grouping together similar functions and splitting unrelated
2575 functions prevents this.
2578 *) Cleanup of EVP macros.
2581 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
2582 correct _ecb suffix.
2585 *) Add initial OCSP responder support to ocsp application. The
2586 revocation information is handled using the text based index
2587 use by the ca application. The responder can either handle
2588 requests generated internally, supplied in files (for example
2589 via a CGI script) or using an internal minimal server.
2592 *) Add configuration choices to get zlib compression for TLS.
2595 *) Changes to Kerberos SSL for RFC 2712 compliance:
2596 1. Implemented real KerberosWrapper, instead of just using
2597 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
2598 2. Implemented optional authenticator field of KerberosWrapper.
2600 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
2601 and authenticator structs; see crypto/krb5/.
2603 Generalized Kerberos calls to support multiple Kerberos libraries.
2604 [Vern Staats <staatsvr@asc.hpc.mil>,
2605 Jeffrey Altman <jaltman@columbia.edu>
2606 via Richard Levitte]
2608 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
2609 already does with RSA. testdsa.h now has 'priv_key/pub_key'
2610 values for each of the key sizes rather than having just
2611 parameters (and 'speed' generating keys each time).
2614 *) Speed up EVP routines.
2617 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
2618 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
2619 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
2620 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
2622 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
2623 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
2624 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
2627 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
2629 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
2632 *) Added the OS2-EMX target.
2633 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
2635 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
2636 to support NCONF routines in extension code. New function CONF_set_nconf()
2637 to allow functions which take an NCONF to also handle the old LHASH
2638 structure: this means that the old CONF compatible routines can be
2639 retained (in particular wrt extensions) without having to duplicate the
2640 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
2643 *) Enhance the general user interface with mechanisms for inner control
2644 and with possibilities to have yes/no kind of prompts.
2647 *) Change all calls to low level digest routines in the library and
2648 applications to use EVP. Add missing calls to HMAC_cleanup() and
2649 don't assume HMAC_CTX can be copied using memcpy().
2650 [Verdon Walker <VWalker@novell.com>, Steve Henson]
2652 *) Add the possibility to control engines through control names but with
2653 arbitrary arguments instead of just a string.
2654 Change the key loaders to take a UI_METHOD instead of a callback
2655 function pointer. NOTE: this breaks binary compatibility with earlier
2656 versions of OpenSSL [engine].
2657 Adapt the nCipher code for these new conditions and add a card insertion
2661 *) Enhance the general user interface with mechanisms to better support
2662 dialog box interfaces, application-defined prompts, the possibility
2663 to use defaults (for example default passwords from somewhere else)
2664 and interrupts/cancellations.
2667 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
2668 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
2671 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
2672 tidy up some unnecessarily weird code in 'sk_new()').
2673 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
2675 *) Change the key loading routines for ENGINEs to use the same kind
2676 callback (pem_password_cb) as all other routines that need this
2680 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
2681 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
2682 than this minimum value is recommended.
2685 *) New random seeder for OpenVMS, using the system process statistics
2686 that are easily reachable.
2689 *) Windows apparently can't transparently handle global
2690 variables defined in DLLs. Initialisations such as:
2692 const ASN1_ITEM *it = &ASN1_INTEGER_it;
2694 wont compile. This is used by the any applications that need to
2695 declare their own ASN1 modules. This was fixed by adding the option
2696 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
2697 needed for static libraries under Win32.
2700 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
2701 setting of purpose and trust fields. New X509_STORE trust and
2702 purpose functions and tidy up setting in other SSL functions.
2705 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
2706 structure. These are inherited by X509_STORE_CTX when it is
2707 initialised. This allows various defaults to be set in the
2708 X509_STORE structure (such as flags for CRL checking and custom
2709 purpose or trust settings) for functions which only use X509_STORE_CTX
2710 internally such as S/MIME.
2712 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
2713 trust settings if they are not set in X509_STORE. This allows X509_STORE
2714 purposes and trust (in S/MIME for example) to override any set by default.
2716 Add command line options for CRL checking to smime, s_client and s_server
2720 *) Initial CRL based revocation checking. If the CRL checking flag(s)
2721 are set then the CRL is looked up in the X509_STORE structure and
2722 its validity and signature checked, then if the certificate is found
2723 in the CRL the verify fails with a revoked error.
2725 Various new CRL related callbacks added to X509_STORE_CTX structure.
2727 Command line options added to 'verify' application to support this.
2729 This needs some additional work, such as being able to handle multiple
2730 CRLs with different times, extension based lookup (rather than just
2731 by subject name) and ultimately more complete V2 CRL extension
2735 *) Add a general user interface API (crypto/ui/). This is designed
2736 to replace things like des_read_password and friends (backward
2737 compatibility functions using this new API are provided).
2738 The purpose is to remove prompting functions from the DES code
2739 section as well as provide for prompting through dialog boxes in
2740 a window system and the like.
2743 *) Add "ex_data" support to ENGINE so implementations can add state at a
2744 per-structure level rather than having to store it globally.
2747 *) Make it possible for ENGINE structures to be copied when retrieved by
2748 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
2749 This causes the "original" ENGINE structure to act like a template,
2750 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
2751 operational state can be localised to each ENGINE structure, despite the
2752 fact they all share the same "methods". New ENGINE structures returned in
2753 this case have no functional references and the return value is the single
2754 structural reference. This matches the single structural reference returned
2755 by ENGINE_by_id() normally, when it is incremented on the pre-existing
2759 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
2760 needs to match any other type at all we need to manually clear the
2764 *) Changes to the "openssl engine" utility to include;
2765 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
2766 about an ENGINE's available control commands.
2767 - executing control commands from command line arguments using the
2768 '-pre' and '-post' switches. '-post' is only used if '-t' is
2769 specified and the ENGINE is successfully initialised. The syntax for
2770 the individual commands are colon-separated, for example;
2771 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
2774 *) New dynamic control command support for ENGINEs. ENGINEs can now
2775 declare their own commands (numbers), names (strings), descriptions,
2776 and input types for run-time discovery by calling applications. A
2777 subset of these commands are implicitly classed as "executable"
2778 depending on their input type, and only these can be invoked through
2779 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
2780 can be based on user input, config files, etc). The distinction is
2781 that "executable" commands cannot return anything other than a boolean
2782 result and can only support numeric or string input, whereas some
2783 discoverable commands may only be for direct use through
2784 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
2785 pointers, or other custom uses. The "executable" commands are to
2786 support parameterisations of ENGINE behaviour that can be
2787 unambiguously defined by ENGINEs and used consistently across any
2788 OpenSSL-based application. Commands have been added to all the
2789 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
2790 control over shared-library paths without source code alterations.
2793 *) Changed all ENGINE implementations to dynamically allocate their
2794 ENGINEs rather than declaring them statically. Apart from this being
2795 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
2796 this also allows the implementations to compile without using the
2797 internal engine_int.h header.
2800 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
2801 'const' value. Any code that should be able to modify a RAND_METHOD
2802 should already have non-const pointers to it (ie. they should only
2803 modify their own ones).
2806 *) Made a variety of little tweaks to the ENGINE code.
2807 - "atalla" and "ubsec" string definitions were moved from header files
2808 to C code. "nuron" string definitions were placed in variables
2809 rather than hard-coded - allowing parameterisation of these values
2810 later on via ctrl() commands.
2811 - Removed unused "#if 0"'d code.
2812 - Fixed engine list iteration code so it uses ENGINE_free() to release
2813 structural references.
2814 - Constified the RAND_METHOD element of ENGINE structures.
2815 - Constified various get/set functions as appropriate and added
2816 missing functions (including a catch-all ENGINE_cpy that duplicates
2817 all ENGINE values onto a new ENGINE except reference counts/state).
2818 - Removed NULL parameter checks in get/set functions. Setting a method
2819 or function to NULL is a way of cancelling out a previously set
2820 value. Passing a NULL ENGINE parameter is just plain stupid anyway
2821 and doesn't justify the extra error symbols and code.
2822 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
2823 flags from engine_int.h to engine.h.
2824 - Changed prototypes for ENGINE handler functions (init(), finish(),
2825 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
2828 *) Implement binary inversion algorithm for BN_mod_inverse in addition
2829 to the algorithm using long division. The binary algorithm can be
2830 used only if the modulus is odd. On 32-bit systems, it is faster
2831 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
2832 roughly 5-15% for 256-bit moduli), so we use it only for moduli
2833 up to 450 bits. In 64-bit environments, the binary algorithm
2834 appears to be advantageous for much longer moduli; here we use it
2835 for moduli up to 2048 bits.
2838 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
2839 could not support the combine flag in choice fields.
2842 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
2843 extensions from a certificate request to the certificate.
2846 *) Allow multiple 'certopt' and 'nameopt' options to be separated
2847 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
2848 file: this allows the display of the certificate about to be
2849 signed to be customised, to allow certain fields to be included
2850 or excluded and extension details. The old system didn't display
2851 multicharacter strings properly, omitted fields not in the policy
2852 and couldn't display additional details such as extensions.
2855 *) Function EC_POINTs_mul for multiple scalar multiplication
2856 of an arbitrary number of elliptic curve points
2857 \sum scalars[i]*points[i],
2858 optionally including the generator defined for the EC_GROUP:
2859 scalar*generator + \sum scalars[i]*points[i].
2861 EC_POINT_mul is a simple wrapper function for the typical case
2862 that the point list has just one item (besides the optional
2866 *) First EC_METHODs for curves over GF(p):
2868 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
2869 operations and provides various method functions that can also
2870 operate with faster implementations of modular arithmetic.
2872 EC_GFp_mont_method() reuses most functions that are part of
2873 EC_GFp_simple_method, but uses Montgomery arithmetic.
2875 [Bodo Moeller; point addition and point doubling
2876 implementation directly derived from source code provided by
2877 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
2879 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
2880 crypto/ec/ec_lib.c):
2882 Curves are EC_GROUP objects (with an optional group generator)
2883 based on EC_METHODs that are built into the library.
2885 Points are EC_POINT objects based on EC_GROUP objects.
2887 Most of the framework would be able to handle curves over arbitrary
2888 finite fields, but as there are no obvious types for fields other
2889 than GF(p), some functions are limited to that for now.
2892 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
2893 that the file contains a complete HTTP response.
2896 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
2897 change the def and num file printf format specifier from "%-40sXXX"
2898 to "%-39s XXX". The latter will always guarantee a space after the
2899 field while the former will cause them to run together if the field
2900 is 40 of more characters long.
2903 *) Constify the cipher and digest 'method' functions and structures
2904 and modify related functions to take constant EVP_MD and EVP_CIPHER
2908 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
2909 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
2912 *) Modify EVP_Digest*() routines so they now return values. Although the
2913 internal software routines can never fail additional hardware versions
2917 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
2919 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
2920 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
2923 ERR_R_NESTED_ASN1_ERROR
2925 ERR_R_MISSING_ASN1_EOS
2926 were 4 .. 9, conflicting with
2927 ERR_LIB_RSA (= ERR_R_RSA_LIB)
2929 ERR_LIB_PEM (= ERR_R_PEM_LIB).
2930 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
2932 Add new error code 'ERR_R_INTERNAL_ERROR'.
2935 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
2939 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
2940 sets the subject name for a new request or supersedes the
2941 subject name in a given request. Formats that can be parsed are
2942 'CN=Some Name, OU=myOU, C=IT'
2944 'CN=Some Name/OU=myOU/C=IT'.
2946 Add options '-batch' and '-verbose' to 'openssl req'.
2947 [Massimiliano Pala <madwolf@hackmasters.net>]
2949 *) Introduce the possibility to access global variables through
2950 functions on platform were that's the best way to handle exporting
2951 global variables in shared libraries. To enable this functionality,
2952 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
2953 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
2954 is normally done by Configure or something similar).
2956 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
2957 in the source file (foo.c) like this:
2959 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
2960 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
2962 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
2963 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
2965 OPENSSL_DECLARE_GLOBAL(int,foo);
2966 #define foo OPENSSL_GLOBAL_REF(foo)
2967 OPENSSL_DECLARE_GLOBAL(double,bar);
2968 #define bar OPENSSL_GLOBAL_REF(bar)
2970 The #defines are very important, and therefore so is including the
2971 header file everywhere where the defined globals are used.
2973 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
2974 of ASN.1 items, but that structure is a bit different.
2976 The largest change is in util/mkdef.pl which has been enhanced with
2977 better and easier to understand logic to choose which symbols should
2978 go into the Windows .def files as well as a number of fixes and code
2979 cleanup (among others, algorithm keywords are now sorted
2980 lexicographically to avoid constant rewrites).
2983 *) In BN_div() keep a copy of the sign of 'num' before writing the
2984 result to 'rm' because if rm==num the value will be overwritten
2985 and produce the wrong result if 'num' is negative: this caused
2986 problems with BN_mod() and BN_nnmod().
2989 *) Function OCSP_request_verify(). This checks the signature on an
2990 OCSP request and verifies the signer certificate. The signer
2991 certificate is just checked for a generic purpose and OCSP request
2995 *) Add OCSP_check_validity() function to check the validity of OCSP
2996 responses. OCSP responses are prepared in real time and may only
2997 be a few seconds old. Simply checking that the current time lies
2998 between thisUpdate and nextUpdate max reject otherwise valid responses
2999 caused by either OCSP responder or client clock inaccuracy. Instead
3000 we allow thisUpdate and nextUpdate to fall within a certain period of
3001 the current time. The age of the response can also optionally be
3002 checked. Two new options -validity_period and -status_age added to
3006 *) If signature or public key algorithm is unrecognized print out its
3007 OID rather that just UNKNOWN.
3010 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
3011 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
3012 ID to be generated from the issuer certificate alone which can then be
3013 passed to OCSP_id_issuer_cmp().
3016 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
3017 ASN1 modules to export functions returning ASN1_ITEM pointers
3018 instead of the ASN1_ITEM structures themselves. This adds several
3019 new macros which allow the underlying ASN1 function/structure to
3020 be accessed transparently. As a result code should not use ASN1_ITEM
3021 references directly (such as &X509_it) but instead use the relevant
3022 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
3023 use of the new ASN1 code on platforms where exporting structures
3024 is problematical (for example in shared libraries) but exporting
3025 functions returning pointers to structures is not.
3028 *) Add support for overriding the generation of SSL/TLS session IDs.
3029 These callbacks can be registered either in an SSL_CTX or per SSL.
3030 The purpose of this is to allow applications to control, if they wish,
3031 the arbitrary values chosen for use as session IDs, particularly as it
3032 can be useful for session caching in multiple-server environments. A
3033 command-line switch for testing this (and any client code that wishes
3034 to use such a feature) has been added to "s_server".
3035 [Geoff Thorpe, Lutz Jaenicke]
3037 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
3038 of the form '#if defined(...) || defined(...) || ...' and
3039 '#if !defined(...) && !defined(...) && ...'. This also avoids
3040 the growing number of special cases it was previously handling.
3043 *) Make all configuration macros available for application by making
3044 sure they are available in opensslconf.h, by giving them names starting
3045 with "OPENSSL_" to avoid conflicts with other packages and by making
3046 sure e_os2.h will cover all platform-specific cases together with
3048 Additionally, it is now possible to define configuration/platform-
3049 specific names (called "system identities"). In the C code, these
3050 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
3051 macro with the name beginning with "OPENSSL_SYS_", which is determined
3052 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
3056 *) New option -set_serial to 'req' and 'x509' this allows the serial
3057 number to use to be specified on the command line. Previously self
3058 signed certificates were hard coded with serial number 0 and the
3059 CA options of 'x509' had to use a serial number in a file which was
3063 *) New options to 'ca' utility to support V2 CRL entry extensions.
3064 Currently CRL reason, invalidity date and hold instruction are
3065 supported. Add new CRL extensions to V3 code and some new objects.
3068 *) New function EVP_CIPHER_CTX_set_padding() this is used to
3069 disable standard block padding (aka PKCS#5 padding) in the EVP
3070 API, which was previously mandatory. This means that the data is
3071 not padded in any way and so the total length much be a multiple
3072 of the block size, otherwise an error occurs.
3075 *) Initial (incomplete) OCSP SSL support.
3078 *) New function OCSP_parse_url(). This splits up a URL into its host,
3079 port and path components: primarily to parse OCSP URLs. New -url
3080 option to ocsp utility.
3083 *) New nonce behavior. The return value of OCSP_check_nonce() now
3084 reflects the various checks performed. Applications can decide
3085 whether to tolerate certain situations such as an absent nonce
3086 in a response when one was present in a request: the ocsp application
3087 just prints out a warning. New function OCSP_add1_basic_nonce()
3088 this is to allow responders to include a nonce in a response even if
3089 the request is nonce-less.
3092 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
3093 skipped when using openssl x509 multiple times on a single input file,
3094 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
3097 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
3098 set string type: to handle setting ASN1_TIME structures. Fix ca
3099 utility to correctly initialize revocation date of CRLs.
3102 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
3103 the clients preferred ciphersuites and rather use its own preferences.
3104 Should help to work around M$ SGC (Server Gated Cryptography) bug in
3105 Internet Explorer by ensuring unchanged hash method during stepup.
3106 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
3109 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
3110 to aes and add a new 'exist' option to print out symbols that don't
3114 *) Additional options to ocsp utility to allow flags to be set and
3115 additional certificates supplied.
3118 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
3119 OCSP client a number of certificate to only verify the response
3123 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
3124 handle the new API. Currently only ECB, CBC modes supported. Add new
3127 Add TLS AES ciphersuites as described in RFC3268, "Advanced
3128 Encryption Standard (AES) Ciphersuites for Transport Layer
3129 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
3130 not enabled by default and were not part of the "ALL" ciphersuite
3131 alias because they were not yet official; they could be
3132 explicitly requested by specifying the "AESdraft" ciphersuite
3133 group alias. In the final release of OpenSSL 0.9.7, the group
3134 alias is called "AES" and is part of "ALL".)
3135 [Ben Laurie, Steve Henson, Bodo Moeller]
3137 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
3138 request to response.
3141 *) Functions for OCSP responders. OCSP_request_onereq_count(),
3142 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
3143 extract information from a certificate request. OCSP_response_create()
3144 creates a response and optionally adds a basic response structure.
3145 OCSP_basic_add1_status() adds a complete single response to a basic
3146 response and returns the OCSP_SINGLERESP structure just added (to allow
3147 extensions to be included for example). OCSP_basic_add1_cert() adds a
3148 certificate to a basic response and OCSP_basic_sign() signs a basic
3149 response with various flags. New helper functions ASN1_TIME_check()
3150 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
3151 (converts ASN1_TIME to GeneralizedTime).
3154 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
3155 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
3156 structure from a certificate. X509_pubkey_digest() digests the public_key
3157 contents: this is used in various key identifiers.
3160 *) Make sk_sort() tolerate a NULL argument.
3161 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
3163 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
3164 passed by the function are trusted implicitly. If any of them signed the
3165 response then it is assumed to be valid and is not verified.
3168 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
3169 to data. This was previously part of the PKCS7 ASN1 code. This
3170 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
3171 [Steve Henson, reported by Kenneth R. Robinette
3172 <support@securenetterm.com>]
3174 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
3175 routines: without these tracing memory leaks is very painful.
3176 Fix leaks in PKCS12 and PKCS7 routines.
3179 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
3180 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
3181 effectively meant GeneralizedTime would never be used. Now it
3182 is initialised to -1 but X509_time_adj() now has to check the value
3183 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
3184 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
3185 [Steve Henson, reported by Kenneth R. Robinette
3186 <support@securenetterm.com>]
3188 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
3189 result in a zero length in the ASN1_INTEGER structure which was
3190 not consistent with the structure when d2i_ASN1_INTEGER() was used
3191 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
3192 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
3193 where it did not print out a minus for negative ASN1_INTEGER.
3196 *) Add summary printout to ocsp utility. The various functions which
3197 convert status values to strings have been renamed to:
3198 OCSP_response_status_str(), OCSP_cert_status_str() and
3199 OCSP_crl_reason_str() and are no longer static. New options
3200 to verify nonce values and to disable verification. OCSP response
3201 printout format cleaned up.
3204 *) Add additional OCSP certificate checks. These are those specified
3205 in RFC2560. This consists of two separate checks: the CA of the
3206 certificate being checked must either be the OCSP signer certificate
3207 or the issuer of the OCSP signer certificate. In the latter case the
3208 OCSP signer certificate must contain the OCSP signing extended key
3209 usage. This check is performed by attempting to match the OCSP
3210 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
3211 in the OCSP_CERTID structures of the response.
3214 *) Initial OCSP certificate verification added to OCSP_basic_verify()
3215 and related routines. This uses the standard OpenSSL certificate
3216 verify routines to perform initial checks (just CA validity) and
3217 to obtain the certificate chain. Then additional checks will be
3218 performed on the chain. Currently the root CA is checked to see
3219 if it is explicitly trusted for OCSP signing. This is used to set
3220 a root CA as a global signing root: that is any certificate that
3221 chains to that CA is an acceptable OCSP signing certificate.
3224 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
3225 extensions from a separate configuration file.
3226 As when reading extensions from the main configuration file,
3227 the '-extensions ...' option may be used for specifying the
3229 [Massimiliano Pala <madwolf@comune.modena.it>]
3231 *) New OCSP utility. Allows OCSP requests to be generated or
3232 read. The request can be sent to a responder and the output
3233 parsed, outputed or printed in text form. Not complete yet:
3234 still needs to check the OCSP response validity.
3237 *) New subcommands for 'openssl ca':
3238 'openssl ca -status <serial>' prints the status of the cert with
3239 the given serial number (according to the index file).
3240 'openssl ca -updatedb' updates the expiry status of certificates
3242 [Massimiliano Pala <madwolf@comune.modena.it>]
3244 *) New '-newreq-nodes' command option to CA.pl. This is like
3245 '-newreq', but calls 'openssl req' with the '-nodes' option
3246 so that the resulting key is not encrypted.
3247 [Damien Miller <djm@mindrot.org>]
3249 *) New configuration for the GNU Hurd.
3250 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
3252 *) Initial code to implement OCSP basic response verify. This
3253 is currently incomplete. Currently just finds the signer's
3254 certificate and verifies the signature on the response.
3257 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
3258 value of OPENSSLDIR. This is available via the new '-d' option
3259 to 'openssl version', and is also included in 'openssl version -a'.
3262 *) Allowing defining memory allocation callbacks that will be given
3263 file name and line number information in additional arguments
3264 (a const char* and an int). The basic functionality remains, as
3265 well as the original possibility to just replace malloc(),
3266 realloc() and free() by functions that do not know about these
3267 additional arguments. To register and find out the current
3268 settings for extended allocation functions, the following
3269 functions are provided:
3271 CRYPTO_set_mem_ex_functions
3272 CRYPTO_set_locked_mem_ex_functions
3273 CRYPTO_get_mem_ex_functions
3274 CRYPTO_get_locked_mem_ex_functions
3276 These work the same way as CRYPTO_set_mem_functions and friends.
3277 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
3278 extended allocation function is enabled.
3279 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
3280 a conventional allocation function is enabled.
3281 [Richard Levitte, Bodo Moeller]
3283 *) Finish off removing the remaining LHASH function pointer casts.
3284 There should no longer be any prototype-casting required when using
3285 the LHASH abstraction, and any casts that remain are "bugs". See
3286 the callback types and macros at the head of lhash.h for details
3287 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
3290 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
3291 If /dev/[u]random devices are not available or do not return enough
3292 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
3294 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
3295 /etc/entropy will be queried once each in this sequence, quering stops
3296 when enough entropy was collected without querying more sockets.
3299 *) Change the Unix RAND_poll() variant to be able to poll several
3300 random devices, as specified by DEVRANDOM, until a sufficient amount
3301 of data has been collected. We spend at most 10 ms on each file
3302 (select timeout) and read in non-blocking mode. DEVRANDOM now
3303 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
3304 (previously it was just the string "/dev/urandom"), so on typical
3305 platforms the 10 ms delay will never occur.
3306 Also separate out the Unix variant to its own file, rand_unix.c.
3307 For VMS, there's a currently-empty rand_vms.c.
3310 *) Move OCSP client related routines to ocsp_cl.c. These
3311 provide utility functions which an application needing
3312 to issue a request to an OCSP responder and analyse the
3313 response will typically need: as opposed to those which an
3314 OCSP responder itself would need which will be added later.
3316 OCSP_request_sign() signs an OCSP request with an API similar
3317 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
3318 response. OCSP_response_get1_basic() extracts basic response
3319 from response. OCSP_resp_find_status(): finds and extracts status
3320 information from an OCSP_CERTID structure (which will be created
3321 when the request structure is built). These are built from lower
3322 level functions which work on OCSP_SINGLERESP structures but
3323 wont normally be used unless the application wishes to examine
3324 extensions in the OCSP response for example.
3326 Replace nonce routines with a pair of functions.
3327 OCSP_request_add1_nonce() adds a nonce value and optionally
3328 generates a random value. OCSP_check_nonce() checks the
3329 validity of the nonce in an OCSP response.
3332 *) Change function OCSP_request_add() to OCSP_request_add0_id().
3333 This doesn't copy the supplied OCSP_CERTID and avoids the
3334 need to free up the newly created id. Change return type
3335 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
3336 This can then be used to add extensions to the request.
3337 Deleted OCSP_request_new(), since most of its functionality
3338 is now in OCSP_REQUEST_new() (and the case insensitive name
3339 clash) apart from the ability to set the request name which
3340 will be added elsewhere.
3343 *) Update OCSP API. Remove obsolete extensions argument from
3344 various functions. Extensions are now handled using the new
3345 OCSP extension code. New simple OCSP HTTP function which
3346 can be used to send requests and parse the response.
3349 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
3350 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
3351 uses the special reorder version of SET OF to sort the attributes
3352 and reorder them to match the encoded order. This resolves a long
3353 standing problem: a verify on a PKCS7 structure just after signing
3354 it used to fail because the attribute order did not match the
3355 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
3356 it uses the received order. This is necessary to tolerate some broken
3357 software that does not order SET OF. This is handled by encoding
3358 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
3359 to produce the required SET OF.
3362 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
3363 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
3364 files to get correct declarations of the ASN.1 item variables.
3367 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
3368 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
3369 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
3370 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
3371 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
3372 ASN1_ITEM and no wrapper functions.
3375 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
3376 replace the old function pointer based I/O routines. Change most of
3377 the *_d2i_bio() and *_d2i_fp() functions to use these.
3380 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
3381 lines, recognice more "algorithms" that can be deselected, and make
3382 it complain about algorithm deselection that isn't recognised.
3385 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
3386 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
3387 to use new functions. Add NO_ASN1_OLD which can be set to remove
3388 some old style ASN1 functions: this can be used to determine if old
3389 code will still work when these eventually go away.
3392 *) New extension functions for OCSP structures, these follow the
3393 same conventions as certificates and CRLs.
3396 *) New function X509V3_add1_i2d(). This automatically encodes and
3397 adds an extension. Its behaviour can be customised with various
3398 flags to append, replace or delete. Various wrappers added for
3399 certifcates and CRLs.
3402 *) Fix to avoid calling the underlying ASN1 print routine when
3403 an extension cannot be parsed. Correct a typo in the
3404 OCSP_SERVICELOC extension. Tidy up print OCSP format.
3407 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
3408 entries for variables.
3411 *) Add functionality to apps/openssl.c for detecting locking
3412 problems: As the program is single-threaded, all we have
3413 to do is register a locking callback using an array for
3414 storing which locks are currently held by the program.
3417 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
3418 SSL_get_ex_data_X509_STORE_idx(), which is used in
3419 ssl_verify_cert_chain() and thus can be called at any time
3420 during TLS/SSL handshakes so that thread-safety is essential.
3421 Unfortunately, the ex_data design is not at all suited
3422 for multi-threaded use, so it probably should be abolished.
3425 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
3426 [Broadcom, tweaked and integrated by Geoff Thorpe]
3428 *) Move common extension printing code to new function
3429 X509V3_print_extensions(). Reorganise OCSP print routines and
3430 implement some needed OCSP ASN1 functions. Add OCSP extensions.
3433 *) New function X509_signature_print() to remove duplication in some
3437 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
3438 set (this was treated exactly the same as SET OF previously). This
3439 is used to reorder the STACK representing the structure to match the
3440 encoding. This will be used to get round a problem where a PKCS7
3441 structure which was signed could not be verified because the STACK
3442 order did not reflect the encoded order.
3445 *) Reimplement the OCSP ASN1 module using the new code.
3448 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
3449 for its ASN1 operations. The old style function pointers still exist
3450 for now but they will eventually go away.
3453 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
3454 completely replaces the old ASN1 functionality with a table driven
3455 encoder and decoder which interprets an ASN1_ITEM structure describing
3456 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
3457 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
3458 has also been converted to the new form.
3461 *) Change BN_mod_exp_recp so that negative moduli are tolerated
3462 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
3463 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
3464 for negative moduli.
3467 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
3468 of not touching the result's sign bit.
3471 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
3475 *) Changed the LHASH code to use prototypes for callbacks, and created
3476 macros to declare and implement thin (optionally static) functions
3477 that provide type-safety and avoid function pointer casting for the
3478 type-specific callbacks.
3481 *) Added Kerberos Cipher Suites to be used with TLS, as written in
3483 [Veers Staats <staatsvr@asc.hpc.mil>,
3484 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
3486 *) Reformat the FAQ so the different questions and answers can be divided
3487 in sections depending on the subject.
3490 *) Have the zlib compression code load ZLIB.DLL dynamically under
3494 *) New function BN_mod_sqrt for computing square roots modulo a prime
3495 (using the probabilistic Tonelli-Shanks algorithm unless
3496 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
3497 be handled deterministically).
3498 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3500 *) Make BN_mod_inverse faster by explicitly handling small quotients
3501 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
3502 512 bits], about 30% for larger ones [1024 or 2048 bits].)
3505 *) New function BN_kronecker.
3508 *) Fix BN_gcd so that it works on negative inputs; the result is
3509 positive unless both parameters are zero.
3510 Previously something reasonably close to an infinite loop was
3511 possible because numbers could be growing instead of shrinking
3512 in the implementation of Euclid's algorithm.
3515 *) Fix BN_is_word() and BN_is_one() macros to take into account the
3516 sign of the number in question.
3518 Fix BN_is_word(a,w) to work correctly for w == 0.
3520 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
3521 because its test if the absolute value of 'a' equals 'w'.
3522 Note that BN_abs_is_word does *not* handle w == 0 reliably;
3523 it exists mostly for use in the implementations of BN_is_zero(),
3524 BN_is_one(), and BN_is_word().
3527 *) New function BN_swap.
3530 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
3531 the exponentiation functions are more likely to produce reasonable
3532 results on negative inputs.
3535 *) Change BN_mod_mul so that the result is always non-negative.
3536 Previously, it could be negative if one of the factors was negative;
3537 I don't think anyone really wanted that behaviour.
3540 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
3541 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
3542 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
3543 and add new functions:
3552 BN_mod_lshift1_quick
3556 These functions always generate non-negative results.
3558 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
3559 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
3561 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
3562 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
3563 be reduced modulo m.
3564 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3567 The following entry accidentily appeared in the CHANGES file
3568 distributed with OpenSSL 0.9.7. The modifications described in
3569 it do *not* apply to OpenSSL 0.9.7.
3571 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3572 was actually never needed) and in BN_mul(). The removal in BN_mul()
3573 required a small change in bn_mul_part_recursive() and the addition
3574 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3575 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3576 bn_sub_words() and bn_add_words() except they take arrays with
3581 *) In 'openssl passwd', verify passwords read from the terminal
3582 unless the '-salt' option is used (which usually means that
3583 verification would just waste user's time since the resulting
3584 hash is going to be compared with some given password hash)
3585 or the new '-noverify' option is used.
3587 This is an incompatible change, but it does not affect
3588 non-interactive use of 'openssl passwd' (passwords on the command
3589 line, '-stdin' option, '-in ...' option) and thus should not
3593 *) Remove all references to RSAref, since there's no more need for it.
3596 *) Make DSO load along a path given through an environment variable
3597 (SHLIB_PATH) with shl_load().
3600 *) Constify the ENGINE code as a result of BIGNUM constification.
3601 Also constify the RSA code and most things related to it. In a
3602 few places, most notable in the depth of the ASN.1 code, ugly
3603 casts back to non-const were required (to be solved at a later
3607 *) Make it so the openssl application has all engines loaded by default.
3610 *) Constify the BIGNUM routines a little more.
3613 *) Add the following functions:
3615 ENGINE_load_cswift()
3617 ENGINE_load_atalla()
3619 ENGINE_load_builtin_engines()
3621 That way, an application can itself choose if external engines that
3622 are built-in in OpenSSL shall ever be used or not. The benefit is
3623 that applications won't have to be linked with libdl or other dso
3624 libraries unless it's really needed.
3626 Changed 'openssl engine' to load all engines on demand.
3627 Changed the engine header files to avoid the duplication of some
3628 declarations (they differed!).
3631 *) 'openssl engine' can now list capabilities.
3634 *) Better error reporting in 'openssl engine'.
3637 *) Never call load_dh_param(NULL) in s_server.
3640 *) Add engine application. It can currently list engines by name and
3641 identity, and test if they are actually available.
3644 *) Improve RPM specification file by forcing symbolic linking and making
3645 sure the installed documentation is also owned by root.root.
3646 [Damien Miller <djm@mindrot.org>]
3648 *) Give the OpenSSL applications more possibilities to make use of
3649 keys (public as well as private) handled by engines.
3652 *) Add OCSP code that comes from CertCo.
3655 *) Add VMS support for the Rijndael code.
3658 *) Added untested support for Nuron crypto accelerator.
3661 *) Add support for external cryptographic devices. This code was
3662 previously distributed separately as the "engine" branch.
3663 [Geoff Thorpe, Richard Levitte]
3665 *) Rework the filename-translation in the DSO code. It is now possible to
3666 have far greater control over how a "name" is turned into a filename
3667 depending on the operating environment and any oddities about the
3668 different shared library filenames on each system.
3671 *) Support threads on FreeBSD-elf in Configure.
3674 *) Fix for SHA1 assembly problem with MASM: it produces
3675 warnings about corrupt line number information when assembling
3676 with debugging information. This is caused by the overlapping
3678 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
3681 NCONF_get_number() has no error checking at all. As a replacement,
3682 NCONF_get_number_e() is defined (_e for "error checking") and is
3683 promoted strongly. The old NCONF_get_number is kept around for
3684 binary backward compatibility.
3685 Make it possible for methods to load from something other than a BIO,
3686 by providing a function pointer that is given a name instead of a BIO.
3687 For example, this could be used to load configuration data from an
3691 *) Fix for non blocking accept BIOs. Added new I/O special reason
3692 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
3693 with non blocking I/O was not possible because no retry code was
3694 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
3698 *) Added the beginnings of Rijndael support.
3701 *) Fix for bug in DirectoryString mask setting. Add support for
3702 X509_NAME_print_ex() in 'req' and X509_print_ex() function
3703 to allow certificate printing to more controllable, additional
3704 'certopt' option to 'x509' to allow new printing options to be
3708 *) Clean old EAY MD5 hack from e_os.h.
3711 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
3713 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3714 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3715 [Joe Orton, Steve Henson]
3717 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
3719 *) Fix additional bug revealed by the NISCC test suite:
3721 Stop bug triggering large recursion when presented with
3722 certain ASN.1 tags (CVE-2003-0851)
3725 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
3727 *) Fix various bugs revealed by running the NISCC test suite:
3729 Stop out of bounds reads in the ASN1 code when presented with
3730 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3732 If verify callback ignores invalid public key errors don't try to check
3733 certificate signature with the NULL public key.
3737 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3738 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3742 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3743 extra data after the compression methods not only for TLS 1.0
3744 but also for SSL 3.0 (as required by the specification).
3745 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3747 *) Change X509_certificate_type() to mark the key as exported/exportable
3748 when it's 512 *bits* long, not 512 bytes.
3751 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
3753 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3754 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3755 a protocol version number mismatch like a decryption error
3756 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3759 *) Turn on RSA blinding by default in the default implementation
3760 to avoid a timing attack. Applications that don't want it can call
3761 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3762 They would be ill-advised to do so in most cases.
3763 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3765 *) Change RSA blinding code so that it works when the PRNG is not
3766 seeded (in this case, the secret RSA exponent is abused as
3767 an unpredictable seed -- if it is not unpredictable, there
3768 is no point in blinding anyway). Make RSA blinding thread-safe
3769 by remembering the creator's thread ID in rsa->blinding and
3770 having all other threads use local one-time blinding factors
3771 (this requires more computation than sharing rsa->blinding, but
3772 avoids excessive locking; and if an RSA object is not shared
3773 between threads, blinding will still be very fast).
3776 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
3778 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3779 via timing by performing a MAC computation even if incorrrect
3780 block cipher padding has been found. This is a countermeasure
3781 against active attacks where the attacker has to distinguish
3782 between bad padding and a MAC verification error. (CVE-2003-0078)
3784 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3785 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3786 Martin Vuagnoux (EPFL, Ilion)]
3788 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
3790 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
3791 memory from it's contents. This is done with a counter that will
3792 place alternating values in each byte. This can be used to solve
3793 two issues: 1) the removal of calls to memset() by highly optimizing
3794 compilers, and 2) cleansing with other values than 0, since those can
3795 be read through on certain media, for example a swap space on disk.
3798 *) Bugfix: client side session caching did not work with external caching,
3799 because the session->cipher setting was not restored when reloading
3800 from the external cache. This problem was masked, when
3801 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
3802 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
3805 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
3806 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
3807 [Zeev Lieber <zeev-l@yahoo.com>]
3809 *) Undo an undocumented change introduced in 0.9.6e which caused
3810 repeated calls to OpenSSL_add_all_ciphers() and
3811 OpenSSL_add_all_digests() to be ignored, even after calling
3815 *) Change the default configuration reader to deal with last line not
3816 being properly terminated.
3819 *) Change X509_NAME_cmp() so it applies the special rules on handling
3820 DN values that are of type PrintableString, as well as RDNs of type
3821 emailAddress where the value has the type ia5String.
3822 [stefank@valicert.com via Richard Levitte]
3824 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
3825 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
3826 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
3827 the bitwise-OR of the two for use by the majority of applications
3828 wanting this behaviour, and update the docs. The documented
3829 behaviour and actual behaviour were inconsistent and had been
3830 changing anyway, so this is more a bug-fix than a behavioural
3832 [Geoff Thorpe, diagnosed by Nadav Har'El]
3834 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
3835 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
3838 *) Fix initialization code race conditions in
3839 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
3840 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
3841 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
3842 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
3843 ssl2_get_cipher_by_char(),
3844 ssl3_get_cipher_by_char().
3845 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
3847 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
3848 the cached sessions are flushed, as the remove_cb() might use ex_data
3849 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
3850 (see [openssl.org #212]).
3851 [Geoff Thorpe, Lutz Jaenicke]
3853 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
3854 length, instead of the encoding length to d2i_ASN1_OBJECT.
3857 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
3859 *) [In 0.9.6g-engine release:]
3860 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
3861 [Lynn Gazis <lgazis@rainbow.com>]
3863 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
3865 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
3866 and get fix the header length calculation.
3867 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
3868 Alon Kantor <alonk@checkpoint.com> (and others),
3871 *) Use proper error handling instead of 'assertions' in buffer
3872 overflow checks added in 0.9.6e. This prevents DoS (the
3873 assertions could call abort()).
3874 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
3876 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
3878 *) Add various sanity checks to asn1_get_length() to reject
3879 the ASN1 length bytes if they exceed sizeof(long), will appear
3880 negative or the content length exceeds the length of the
3882 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3884 *) Fix cipher selection routines: ciphers without encryption had no flags
3885 for the cipher strength set and where therefore not handled correctly
3886 by the selection routines (PR #130).
3889 *) Fix EVP_dsa_sha macro.
3893 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
3894 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
3895 that was added in OpenSSL 0.9.6d.
3897 As the countermeasure turned out to be incompatible with some
3898 broken SSL implementations, the new option is part of SSL_OP_ALL.
3899 SSL_OP_ALL is usually employed when compatibility with weird SSL
3900 implementations is desired (e.g. '-bugs' option to 's_client' and
3901 's_server'), so the new option is automatically set in many
3905 *) Changes in security patch:
3907 Changes marked "(CHATS)" were sponsored by the Defense Advanced
3908 Research Projects Agency (DARPA) and Air Force Research Laboratory,
3909 Air Force Materiel Command, USAF, under agreement number
3912 *) Add various sanity checks to asn1_get_length() to reject
3913 the ASN1 length bytes if they exceed sizeof(long), will appear
3914 negative or the content length exceeds the length of the
3915 supplied buffer. (CVE-2002-0659)
3916 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3918 *) Assertions for various potential buffer overflows, not known to
3920 [Ben Laurie (CHATS)]
3922 *) Various temporary buffers to hold ASCII versions of integers were
3923 too small for 64 bit platforms. (CVE-2002-0655)
3924 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
3926 *) Remote buffer overflow in SSL3 protocol - an attacker could
3927 supply an oversized session ID to a client. (CVE-2002-0656)
3928 [Ben Laurie (CHATS)]
3930 *) Remote buffer overflow in SSL2 protocol - an attacker could
3931 supply an oversized client master key. (CVE-2002-0656)
3932 [Ben Laurie (CHATS)]
3934 Changes between 0.9.6c and 0.9.6d [9 May 2002]
3936 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
3937 encoded as NULL) with id-dsa-with-sha1.
3938 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
3940 *) Check various X509_...() return values in apps/req.c.
3941 [Nils Larsch <nla@trustcenter.de>]
3943 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
3944 an end-of-file condition would erronously be flagged, when the CRLF
3945 was just at the end of a processed block. The bug was discovered when
3946 processing data through a buffering memory BIO handing the data to a
3947 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
3948 <ptsekov@syntrex.com> and Nedelcho Stanev.
3951 *) Implement a countermeasure against a vulnerability recently found
3952 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
3953 before application data chunks to avoid the use of known IVs
3954 with data potentially chosen by the attacker.
3957 *) Fix length checks in ssl3_get_client_hello().
3960 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
3961 to prevent ssl3_read_internal() from incorrectly assuming that
3962 ssl3_read_bytes() found application data while handshake
3963 processing was enabled when in fact s->s3->in_read_app_data was
3964 merely automatically cleared during the initial handshake.
3965 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
3967 *) Fix object definitions for Private and Enterprise: they were not
3968 recognized in their shortname (=lowercase) representation. Extend
3969 obj_dat.pl to issue an error when using undefined keywords instead
3970 of silently ignoring the problem (Svenning Sorensen
3971 <sss@sss.dnsalias.net>).
3974 *) Fix DH_generate_parameters() so that it works for 'non-standard'
3975 generators, i.e. generators other than 2 and 5. (Previously, the
3976 code did not properly initialise the 'add' and 'rem' values to
3977 BN_generate_prime().)
3979 In the new general case, we do not insist that 'generator' is
3980 actually a primitive root: This requirement is rather pointless;
3981 a generator of the order-q subgroup is just as good, if not
3985 *) Map new X509 verification errors to alerts. Discovered and submitted by
3986 Tom Wu <tom@arcot.com>.
3989 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
3990 returning non-zero before the data has been completely received
3991 when using non-blocking I/O.
3992 [Bodo Moeller; problem pointed out by John Hughes]
3994 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
3995 [Ben Laurie, Lutz Jaenicke]
3997 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
3998 Yoram Zahavi <YoramZ@gilian.com>).
4001 *) Add information about CygWin 1.3 and on, and preserve proper
4002 configuration for the versions before that.
4003 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
4005 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
4006 check whether we deal with a copy of a session and do not delete from
4007 the cache in this case. Problem reported by "Izhar Shoshani Levi"
4008 <izhar@checkpoint.com>.
4011 *) Do not store session data into the internal session cache, if it
4012 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
4013 flag is set). Proposed by Aslam <aslam@funk.com>.
4016 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
4020 *) [In 0.9.6d-engine release:]
4021 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4022 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4024 *) Add the configuration target linux-s390x.
4025 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
4027 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
4028 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
4029 variable as an indication that a ClientHello message has been
4030 received. As the flag value will be lost between multiple
4031 invocations of ssl3_accept when using non-blocking I/O, the
4032 function may not be aware that a handshake has actually taken
4033 place, thus preventing a new session from being added to the
4036 To avoid this problem, we now set s->new_session to 2 instead of
4037 using a local variable.
4038 [Lutz Jaenicke, Bodo Moeller]
4040 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
4041 if the SSL_R_LENGTH_MISMATCH error is detected.
4042 [Geoff Thorpe, Bodo Moeller]
4044 *) New 'shared_ldflag' column in Configure platform table.
4047 *) Fix EVP_CIPHER_mode macro.
4048 ["Dan S. Camper" <dan@bti.net>]
4050 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
4051 type, we must throw them away by setting rr->length to 0.
4052 [D P Chang <dpc@qualys.com>]
4054 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
4056 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
4057 <Dominikus.Scherkl@biodata.com>. (The previous implementation
4058 worked incorrectly for those cases where range = 10..._2 and
4059 3*range is two bits longer than range.)
4062 *) Only add signing time to PKCS7 structures if it is not already
4066 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
4067 OBJ_ld_ce should be OBJ_id_ce.
4068 Also some ip-pda OIDs in crypto/objects/objects.txt were
4069 incorrect (cf. RFC 3039).
4070 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
4072 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
4073 returns early because it has nothing to do.
4074 [Andy Schneider <andy.schneider@bjss.co.uk>]
4076 *) [In 0.9.6c-engine release:]
4077 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
4078 [Andy Schneider <andy.schneider@bjss.co.uk>]
4080 *) [In 0.9.6c-engine release:]
4081 Add support for Cryptographic Appliance's keyserver technology.
4082 (Use engine 'keyclient')
4083 [Cryptographic Appliances and Geoff Thorpe]
4085 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
4086 is called via tools/c89.sh because arguments have to be
4087 rearranged (all '-L' options must appear before the first object
4089 [Richard Shapiro <rshapiro@abinitio.com>]
4091 *) [In 0.9.6c-engine release:]
4092 Add support for Broadcom crypto accelerator cards, backported
4094 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
4096 *) [In 0.9.6c-engine release:]
4097 Add support for SureWare crypto accelerator cards from
4098 Baltimore Technologies. (Use engine 'sureware')
4099 [Baltimore Technologies and Mark Cox]
4101 *) [In 0.9.6c-engine release:]
4102 Add support for crypto accelerator cards from Accelerated
4103 Encryption Processing, www.aep.ie. (Use engine 'aep')
4104 [AEP Inc. and Mark Cox]
4106 *) Add a configuration entry for gcc on UnixWare.
4107 [Gary Benson <gbenson@redhat.com>]
4109 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
4110 messages are stored in a single piece (fixed-length part and
4111 variable-length part combined) and fix various bugs found on the way.
4114 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
4115 instead. BIO_gethostbyname() does not know what timeouts are
4116 appropriate, so entries would stay in cache even when they have
4118 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
4120 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
4121 faced with a pathologically small ClientHello fragment that does
4122 not contain client_version: Instead of aborting with an error,
4123 simply choose the highest available protocol version (i.e.,
4124 TLS 1.0 unless it is disabled). In practice, ClientHello
4125 messages are never sent like this, but this change gives us
4126 strictly correct behaviour at least for TLS.
4129 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
4130 never resets s->method to s->ctx->method when called from within
4131 one of the SSL handshake functions.
4132 [Bodo Moeller; problem pointed out by Niko Baric]
4134 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
4135 (sent using the client's version number) if client_version is
4136 smaller than the protocol version in use. Also change
4137 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
4138 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
4139 the client will at least see that alert.
4142 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
4146 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
4147 client receives HelloRequest while in a handshake.
4148 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
4150 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
4151 should end in 'break', not 'goto end' which circuments various
4152 cleanups done in state SSL_ST_OK. But session related stuff
4153 must be disabled for SSL_ST_OK in the case that we just sent a
4156 Also avoid some overhead by not calling ssl_init_wbio_buffer()
4157 before just sending a HelloRequest.
4158 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
4160 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
4161 reveal whether illegal block cipher padding was found or a MAC
4162 verification error occured. (Neither SSLerr() codes nor alerts
4163 are directly visible to potential attackers, but the information
4164 may leak via logfiles.)
4166 Similar changes are not required for the SSL 2.0 implementation
4167 because the number of padding bytes is sent in clear for SSL 2.0,
4168 and the extra bytes are just ignored. However ssl/s2_pkt.c
4169 failed to verify that the purported number of padding bytes is in
4173 *) Add OpenUNIX-8 support including shared libraries
4174 (Boyd Lynn Gerber <gerberb@zenez.com>).
4177 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
4178 'wristwatch attack' using huge encoding parameters (cf.
4179 James H. Manger's CRYPTO 2001 paper). Note that the
4180 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
4181 encoding parameters and hence was not vulnerable.
4184 *) BN_sqr() bug fix.
4185 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
4187 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
4188 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
4189 followed by modular reduction.
4190 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
4192 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
4193 equivalent based on BN_pseudo_rand() instead of BN_rand().
4196 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
4197 This function was broken, as the check for a new client hello message
4198 to handle SGC did not allow these large messages.
4199 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
4202 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
4205 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
4206 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
4209 *) Rework the configuration and shared library support for Tru64 Unix.
4210 The configuration part makes use of modern compiler features and
4211 still retains old compiler behavior for those that run older versions
4212 of the OS. The shared library support part includes a variant that
4213 uses the RPATH feature, and is available through the special
4214 configuration target "alpha-cc-rpath", which will never be selected
4216 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
4218 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
4219 with the same message size as in ssl3_get_certificate_request().
4220 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
4221 messages might inadvertently be reject as too long.
4222 [Petr Lampa <lampa@fee.vutbr.cz>]
4224 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
4227 *) Modified SSL library such that the verify_callback that has been set
4228 specificly for an SSL object with SSL_set_verify() is actually being
4229 used. Before the change, a verify_callback set with this function was
4230 ignored and the verify_callback() set in the SSL_CTX at the time of
4231 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
4232 to allow the necessary settings.
4235 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
4236 explicitly to NULL, as at least on Solaris 8 this seems not always to be
4237 done automatically (in contradiction to the requirements of the C
4238 standard). This made problems when used from OpenSSH.
4241 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
4242 dh->length and always used
4244 BN_rand_range(priv_key, dh->p).
4246 BN_rand_range() is not necessary for Diffie-Hellman, and this
4247 specific range makes Diffie-Hellman unnecessarily inefficient if
4248 dh->length (recommended exponent length) is much smaller than the
4249 length of dh->p. We could use BN_rand_range() if the order of
4250 the subgroup was stored in the DH structure, but we only have
4255 BN_rand(priv_key, l, ...)
4257 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
4263 RSA_eay_public_encrypt
4264 RSA_eay_private_decrypt
4265 RSA_eay_private_encrypt (signing)
4266 RSA_eay_public_decrypt (signature verification)
4268 (default implementations for RSA_public_encrypt,
4269 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
4270 always reject numbers >= n.
4273 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
4274 to synchronize access to 'locking_thread'. This is necessary on
4275 systems where access to 'locking_thread' (an 'unsigned long'
4276 variable) is not atomic.
4279 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
4280 *before* setting the 'crypto_lock_rand' flag. The previous code had
4281 a race condition if 0 is a valid thread ID.
4282 [Travis Vitek <vitek@roguewave.com>]
4284 *) Add support for shared libraries under Irix.
4285 [Albert Chin-A-Young <china@thewrittenword.com>]
4287 *) Add configuration option to build on Linux on both big-endian and
4289 [Ralf Baechle <ralf@uni-koblenz.de>]
4291 *) Add the possibility to create shared libraries on HP-UX.
4294 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
4296 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
4297 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
4298 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
4299 PRNG state recovery was possible based on the output of
4300 one PRNG request appropriately sized to gain knowledge on
4301 'md' followed by enough consecutive 1-byte PRNG requests
4302 to traverse all of 'state'.
4304 1. When updating 'md_local' (the current thread's copy of 'md')
4305 during PRNG output generation, hash all of the previous
4306 'md_local' value, not just the half used for PRNG output.
4308 2. Make the number of bytes from 'state' included into the hash
4309 independent from the number of PRNG bytes requested.
4311 The first measure alone would be sufficient to avoid
4312 Markku-Juhani's attack. (Actually it had never occurred
4313 to me that the half of 'md_local' used for chaining was the
4314 half from which PRNG output bytes were taken -- I had always
4315 assumed that the secret half would be used.) The second
4316 measure makes sure that additional data from 'state' is never
4317 mixed into 'md_local' in small portions; this heuristically
4318 further strengthens the PRNG.
4321 *) Fix crypto/bn/asm/mips3.s.
4324 *) When only the key is given to "enc", the IV is undefined. Print out
4325 an error message in this case.
4328 *) Handle special case when X509_NAME is empty in X509 printing routines.
4331 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
4332 positive and less than q.
4335 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
4336 used: it isn't thread safe and the add_lock_callback should handle
4338 [Paul Rose <Paul.Rose@bridge.com>]
4340 *) Verify that incoming data obeys the block size in
4341 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
4345 [Ulf Möller, Bodo Möller]
4347 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
4348 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
4349 when fixing the server behaviour for backwards-compatible 'client
4350 hello' messages. (Note that the attack is impractical against
4351 SSL 3.0 and TLS 1.0 anyway because length and version checking
4352 means that the probability of guessing a valid ciphertext is
4353 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
4356 Before 0.9.5, the countermeasure (hide the error by generating a
4357 random 'decryption result') did not work properly because
4358 ERR_clear_error() was missing, meaning that SSL_get_error() would
4359 detect the supposedly ignored error.
4361 Both problems are now fixed.
4364 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
4365 (previously it was 1024).
4368 *) Fix for compatibility mode trust settings: ignore trust settings
4369 unless some valid trust or reject settings are present.
4372 *) Fix for blowfish EVP: its a variable length cipher.
4375 *) Fix various bugs related to DSA S/MIME verification. Handle missing
4376 parameters in DSA public key structures and return an error in the
4377 DSA routines if parameters are absent.
4380 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
4381 in the current directory if neither $RANDFILE nor $HOME was set.
4382 RAND_file_name() in 0.9.6a returned NULL in this case. This has
4383 caused some confusion to Windows users who haven't defined $HOME.
4384 Thus RAND_file_name() is changed again: e_os.h can define a
4385 DEFAULT_HOME, which will be used if $HOME is not set.
4386 For Windows, we use "C:"; on other platforms, we still require
4387 environment variables.
4389 *) Move 'if (!initialized) RAND_poll()' into regions protected by
4390 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
4391 having multiple threads call RAND_poll() concurrently.
4394 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
4395 combination of a flag and a thread ID variable.
4396 Otherwise while one thread is in ssleay_rand_bytes (which sets the
4397 flag), *other* threads can enter ssleay_add_bytes without obeying
4398 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
4399 that they do not hold after the first thread unsets add_do_not_lock).
4402 *) Change bctest again: '-x' expressions are not available in all
4406 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
4408 *) Fix a couple of memory leaks in PKCS7_dataDecode()
4409 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
4411 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
4412 the default extension for executables, if any. Also, make the perl
4413 scripts that use symlink() to test if it really exists and use "cp"
4414 if it doesn't. All this made OpenSSL compilable and installable in
4418 *) Fix for asn1_GetSequence() for indefinite length constructed data.
4419 If SEQUENCE is length is indefinite just set c->slen to the total
4420 amount of data available.
4421 [Steve Henson, reported by shige@FreeBSD.org]
4422 [This change does not apply to 0.9.7.]
4424 *) Change bctest to avoid here-documents inside command substitution
4425 (workaround for FreeBSD /bin/sh bug).
4426 For compatibility with Ultrix, avoid shell functions (introduced
4427 in the bctest version that searches along $PATH).
4430 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
4431 with des_encrypt() defined on some operating systems, like Solaris
4435 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
4436 On the Importance of Eliminating Errors in Cryptographic
4437 Computations, J. Cryptology 14 (2001) 2, 101-119,
4438 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
4441 *) MIPS assembler BIGNUM division bug fix.
4444 *) Disabled incorrect Alpha assembler code.
4447 *) Fix PKCS#7 decode routines so they correctly update the length
4448 after reading an EOC for the EXPLICIT tag.
4450 [This change does not apply to 0.9.7.]
4452 *) Fix bug in PKCS#12 key generation routines. This was triggered
4453 if a 3DES key was generated with a 0 initial byte. Include
4454 PKCS12_BROKEN_KEYGEN compilation option to retain the old
4455 (but broken) behaviour.
4458 *) Enhance bctest to search for a working bc along $PATH and print
4460 [Tim Rice <tim@multitalents.net> via Richard Levitte]
4462 *) Fix memory leaks in err.c: free err_data string if necessary;
4463 don't write to the wrong index in ERR_set_error_data.
4466 *) Implement ssl23_peek (analogous to ssl23_read), which previously
4470 *) Replace rdtsc with _emit statements for VC++ version 5.
4471 [Jeremy Cooper <jeremy@baymoo.org>]
4473 *) Make it possible to reuse SSLv2 sessions.
4476 *) In copy_email() check for >= 0 as a return value for
4477 X509_NAME_get_index_by_NID() since 0 is a valid index.
4478 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
4480 *) Avoid coredump with unsupported or invalid public keys by checking if
4481 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
4482 PKCS7_verify() fails with non detached data.
4485 *) Don't use getenv in library functions when run as setuid/setgid.
4486 New function OPENSSL_issetugid().
4489 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
4490 due to incorrect handling of multi-threading:
4492 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
4494 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
4496 3. Count how many times MemCheck_off() has been called so that
4497 nested use can be treated correctly. This also avoids
4498 inband-signalling in the previous code (which relied on the
4499 assumption that thread ID 0 is impossible).
4502 *) Add "-rand" option also to s_client and s_server.
4505 *) Fix CPU detection on Irix 6.x.
4506 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
4507 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4509 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
4512 [This change does not apply to 0.9.7.]
4514 *) Use the cached encoding of an X509_NAME structure rather than
4515 copying it. This is apparently the reason for the libsafe "errors"
4516 but the code is actually correct.
4519 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
4520 Bleichenbacher's DSA attack.
4521 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
4522 to be set and top=0 forces the highest bit to be set; top=-1 is new
4523 and leaves the highest bit random.
4524 [Ulf Moeller, Bodo Moeller]
4526 *) In the NCONF_...-based implementations for CONF_... queries
4527 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
4528 a temporary CONF structure with the data component set to NULL
4529 (which gives segmentation faults in lh_retrieve).
4530 Instead, use NULL for the CONF pointer in CONF_get_string and
4531 CONF_get_number (which may use environment variables) and directly
4532 return NULL from CONF_get_section.
4535 *) Fix potential buffer overrun for EBCDIC.
4538 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
4539 keyUsage if basicConstraints absent for a CA.
4542 *) Make SMIME_write_PKCS7() write mail header values with a format that
4543 is more generally accepted (no spaces before the semicolon), since
4544 some programs can't parse those values properly otherwise. Also make
4545 sure BIO's that break lines after each write do not create invalid
4549 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
4550 macros previously used would not encode an empty SEQUENCE OF
4551 and break the signature.
4553 [This change does not apply to 0.9.7.]
4555 *) Zero the premaster secret after deriving the master secret in
4559 *) Add some EVP_add_digest_alias registrations (as found in
4560 OpenSSL_add_all_digests()) to SSL_library_init()
4561 aka OpenSSL_add_ssl_algorithms(). This provides improved
4562 compatibility with peers using X.509 certificates
4563 with unconventional AlgorithmIdentifier OIDs.
4566 *) Fix for Irix with NO_ASM.
4567 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4569 *) ./config script fixes.
4570 [Ulf Moeller, Richard Levitte]
4572 *) Fix 'openssl passwd -1'.
4575 *) Change PKCS12_key_gen_asc() so it can cope with non null
4576 terminated strings whose length is passed in the passlen
4577 parameter, for example from PEM callbacks. This was done
4578 by adding an extra length parameter to asc2uni().
4579 [Steve Henson, reported by <oddissey@samsung.co.kr>]
4581 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
4582 call failed, free the DSA structure.
4585 *) Fix to uni2asc() to cope with zero length Unicode strings.
4586 These are present in some PKCS#12 files.
4589 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
4590 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
4591 when writing a 32767 byte record.
4592 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
4594 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
4595 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
4597 (RSA objects have a reference count access to which is protected
4598 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
4599 so they are meant to be shared between threads.)
4600 [Bodo Moeller, Geoff Thorpe; original patch submitted by
4601 "Reddie, Steven" <Steven.Reddie@ca.com>]
4603 *) Fix a deadlock in CRYPTO_mem_leaks().
4606 *) Use better test patterns in bntest.
4609 *) rand_win.c fix for Borland C.
4612 *) BN_rshift bugfix for n == 0.
4615 *) Add a 'bctest' script that checks for some known 'bc' bugs
4616 so that 'make test' does not abort just because 'bc' is broken.
4619 *) Store verify_result within SSL_SESSION also for client side to
4620 avoid potential security hole. (Re-used sessions on the client side
4621 always resulted in verify_result==X509_V_OK, not using the original
4622 result of the server certificate verification.)
4625 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
4626 SSL3_RT_APPLICATION_DATA, return 0.
4627 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
4631 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
4632 releases, have been re-implemented by renaming the previous
4633 implementations of ssl2_read and ssl3_read to ssl2_read_internal
4634 and ssl3_read_internal, respectively, and adding 'peek' parameters
4635 to them. The new ssl[23]_{read,peek} functions are calls to
4636 ssl[23]_read_internal with the 'peek' flag set appropriately.
4637 A 'peek' parameter has also been added to ssl3_read_bytes, which
4638 does the actual work for ssl3_read_internal.
4641 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
4642 the method-specific "init()" handler. Also clean up ex_data after
4643 calling the method-specific "finish()" handler. Previously, this was
4644 happening the other way round.
4647 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
4648 The previous value, 12, was not always sufficient for BN_mod_exp().
4651 *) Make sure that shared libraries get the internal name engine with
4652 the full version number and not just 0. This should mark the
4653 shared libraries as not backward compatible. Of course, this should
4654 be changed again when we can guarantee backward binary compatibility.
4657 *) Fix typo in get_cert_by_subject() in by_dir.c
4658 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
4660 *) Rework the system to generate shared libraries:
4662 - Make note of the expected extension for the shared libraries and
4663 if there is a need for symbolic links from for example libcrypto.so.0
4664 to libcrypto.so.0.9.7. There is extended info in Configure for
4667 - Make as few rebuilds of the shared libraries as possible.
4669 - Still avoid linking the OpenSSL programs with the shared libraries.
4671 - When installing, install the shared libraries separately from the
4675 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
4677 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
4678 and not in SSL_clear because the latter is also used by the
4679 accept/connect functions; previously, the settings made by
4680 SSL_set_read_ahead would be lost during the handshake.
4681 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
4683 *) Correct util/mkdef.pl to be selective about disabled algorithms.
4684 Previously, it would create entries for disableed algorithms no
4688 *) Added several new manual pages for SSL_* function.
4691 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
4693 *) In ssl23_get_client_hello, generate an error message when faced
4694 with an initial SSL 3.0/TLS record that is too small to contain the
4695 first two bytes of the ClientHello message, i.e. client_version.
4696 (Note that this is a pathologic case that probably has never happened
4697 in real life.) The previous approach was to use the version number
4698 from the record header as a substitute; but our protocol choice
4699 should not depend on that one because it is not authenticated
4700 by the Finished messages.
4703 *) More robust randomness gathering functions for Windows.
4704 [Jeffrey Altman <jaltman@columbia.edu>]
4706 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
4707 not set then we don't setup the error code for issuer check errors
4708 to avoid possibly overwriting other errors which the callback does
4709 handle. If an application does set the flag then we assume it knows
4710 what it is doing and can handle the new informational codes
4714 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
4715 a general "ANY" type, as such it should be able to decode anything
4716 including tagged types. However it didn't check the class so it would
4717 wrongly interpret tagged types in the same way as their universal
4718 counterpart and unknown types were just rejected. Changed so that the
4719 tagged and unknown types are handled in the same way as a SEQUENCE:
4720 that is the encoding is stored intact. There is also a new type
4721 "V_ASN1_OTHER" which is used when the class is not universal, in this
4722 case we have no idea what the actual type is so we just lump them all
4726 *) On VMS, stdout may very well lead to a file that is written to
4727 in a record-oriented fashion. That means that every write() will
4728 write a separate record, which will be read separately by the
4729 programs trying to read from it. This can be very confusing.
4731 The solution is to put a BIO filter in the way that will buffer
4732 text until a linefeed is reached, and then write everything a
4733 line at a time, so every record written will be an actual line,
4734 not chunks of lines and not (usually doesn't happen, but I've
4735 seen it once) several lines in one record. BIO_f_linebuffer() is
4738 Currently, it's a VMS-only method, because that's where it has
4739 been tested well enough.
4742 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
4743 it can return incorrect results.
4744 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
4745 but it was in 0.9.6-beta[12].)
4748 *) Disable the check for content being present when verifying detached
4749 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
4750 include zero length content when signing messages.
4753 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
4754 BIO_ctrl (for BIO pairs).
4757 *) Add DSO method for VMS.
4760 *) Bug fix: Montgomery multiplication could produce results with the
4764 *) Add RPM specification openssl.spec and modify it to build three
4765 packages. The default package contains applications, application
4766 documentation and run-time libraries. The devel package contains
4767 include files, static libraries and function documentation. The
4768 doc package contains the contents of the doc directory. The original
4769 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
4772 *) Add a large number of documentation files for many SSL routines.
4773 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
4775 *) Add a configuration entry for Sony News 4.
4776 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
4778 *) Don't set the two most significant bits to one when generating a
4779 random number < q in the DSA library.
4782 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
4783 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
4784 the underlying transport is blocking) if a handshake took place.
4785 (The default behaviour is needed by applications such as s_client
4786 and s_server that use select() to determine when to use SSL_read;
4787 but for applications that know in advance when to expect data, it
4788 just makes things more complicated.)
4791 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
4795 *) Add a few more EBCDIC conditionals that make `req' and `x509'
4796 work better on such systems.
4797 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
4799 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
4800 Update PKCS12_parse() so it copies the friendlyName and the
4801 keyid to the certificates aux info.
4804 *) Fix bug in PKCS7_verify() which caused an infinite loop
4805 if there was more than one signature.
4806 [Sven Uszpelkat <su@celocom.de>]
4808 *) Major change in util/mkdef.pl to include extra information
4809 about each symbol, as well as presentig variables as well
4810 as functions. This change means that there's n more need
4811 to rebuild the .num files when some algorithms are excluded.
4814 *) Allow the verify time to be set by an application,
4815 rather than always using the current time.
4818 *) Phase 2 verify code reorganisation. The certificate
4819 verify code now looks up an issuer certificate by a
4820 number of criteria: subject name, authority key id
4821 and key usage. It also verifies self signed certificates
4822 by the same criteria. The main comparison function is
4823 X509_check_issued() which performs these checks.
4825 Lot of changes were necessary in order to support this
4826 without completely rewriting the lookup code.
4828 Authority and subject key identifier are now cached.
4830 The LHASH 'certs' is X509_STORE has now been replaced
4831 by a STACK_OF(X509_OBJECT). This is mainly because an
4832 LHASH can't store or retrieve multiple objects with
4833 the same hash value.
4835 As a result various functions (which were all internal
4836 use only) have changed to handle the new X509_STORE
4837 structure. This will break anything that messed round
4838 with X509_STORE internally.
4840 The functions X509_STORE_add_cert() now checks for an
4841 exact match, rather than just subject name.
4843 The X509_STORE API doesn't directly support the retrieval
4844 of multiple certificates matching a given criteria, however
4845 this can be worked round by performing a lookup first
4846 (which will fill the cache with candidate certificates)
4847 and then examining the cache for matches. This is probably
4848 the best we can do without throwing out X509_LOOKUP
4849 entirely (maybe later...).
4851 The X509_VERIFY_CTX structure has been enhanced considerably.
4853 All certificate lookup operations now go via a get_issuer()
4854 callback. Although this currently uses an X509_STORE it
4855 can be replaced by custom lookups. This is a simple way
4856 to bypass the X509_STORE hackery necessary to make this
4857 work and makes it possible to use more efficient techniques
4858 in future. A very simple version which uses a simple
4859 STACK for its trusted certificate store is also provided
4860 using X509_STORE_CTX_trusted_stack().
4862 The verify_cb() and verify() callbacks now have equivalents
4863 in the X509_STORE_CTX structure.
4865 X509_STORE_CTX also has a 'flags' field which can be used
4866 to customise the verify behaviour.
4869 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
4870 excludes S/MIME capabilities.
4873 *) When a certificate request is read in keep a copy of the
4874 original encoding of the signed data and use it when outputing
4875 again. Signatures then use the original encoding rather than
4876 a decoded, encoded version which may cause problems if the
4877 request is improperly encoded.
4880 *) For consistency with other BIO_puts implementations, call
4881 buffer_write(b, ...) directly in buffer_puts instead of calling
4884 In BIO_puts, increment b->num_write as in BIO_write.
4885 [Peter.Sylvester@EdelWeb.fr]
4887 *) Fix BN_mul_word for the case where the word is 0. (We have to use
4888 BN_zero, we may not return a BIGNUM with an array consisting of
4892 *) Avoid calling abort() from within the library when problems are
4893 detected, except if preprocessor symbols have been defined
4894 (such as REF_CHECK, BN_DEBUG etc.).
4897 *) New openssl application 'rsautl'. This utility can be
4898 used for low level RSA operations. DER public key
4899 BIO/fp routines also added.
4902 *) New Configure entry and patches for compiling on QNX 4.
4903 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
4905 *) A demo state-machine implementation was sponsored by
4906 Nuron (http://www.nuron.com/) and is now available in
4907 demos/state_machine.
4910 *) New options added to the 'dgst' utility for signature
4911 generation and verification.
4914 *) Unrecognized PKCS#7 content types are now handled via a
4915 catch all ASN1_TYPE structure. This allows unsupported
4916 types to be stored as a "blob" and an application can
4917 encode and decode it manually.
4920 *) Fix various signed/unsigned issues to make a_strex.c
4922 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
4924 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
4925 length if passed a buffer. ASN1_INTEGER_to_BN failed
4926 if passed a NULL BN and its argument was negative.
4927 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
4929 *) Modification to PKCS#7 encoding routines to output definite
4930 length encoding. Since currently the whole structures are in
4931 memory there's not real point in using indefinite length
4932 constructed encoding. However if OpenSSL is compiled with
4933 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
4936 *) Added BIO_vprintf() and BIO_vsnprintf().
4939 *) Added more prefixes to parse for in the the strings written
4940 through a logging bio, to cover all the levels that are available
4941 through syslog. The prefixes are now:
4943 PANIC, EMERG, EMR => LOG_EMERG
4944 ALERT, ALR => LOG_ALERT
4945 CRIT, CRI => LOG_CRIT
4946 ERROR, ERR => LOG_ERR
4947 WARNING, WARN, WAR => LOG_WARNING
4948 NOTICE, NOTE, NOT => LOG_NOTICE
4949 INFO, INF => LOG_INFO
4950 DEBUG, DBG => LOG_DEBUG
4952 and as before, if none of those prefixes are present at the
4953 beginning of the string, LOG_ERR is chosen.
4955 On Win32, the LOG_* levels are mapped according to this:
4957 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
4958 LOG_WARNING => EVENTLOG_WARNING_TYPE
4959 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
4963 *) Made it possible to reconfigure with just the configuration
4964 argument "reconf" or "reconfigure". The command line arguments
4965 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
4966 and are retrieved from there when reconfiguring.
4970 [Assar Westerlund <assar@sics.se>, Richard Levitte]
4972 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
4975 *) The obj_dat.pl script was messing up the sorting of object
4976 names. The reason was that it compared the quoted version
4977 of strings as a result "OCSP" > "OCSP Signing" because
4978 " > SPACE. Changed script to store unquoted versions of
4979 names and add quotes on output. It was also omitting some
4980 names from the lookup table if they were given a default
4981 value (that is if SN is missing it is given the same
4982 value as LN and vice versa), these are now added on the
4983 grounds that if an object has a name we should be able to
4984 look it up. Finally added warning output when duplicate
4985 short or long names are found.
4988 *) Changes needed for Tandem NSK.
4989 [Scott Uroff <scott@xypro.com>]
4991 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
4992 RSA_padding_check_SSLv23(), special padding was never detected
4993 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
4994 version rollback attacks was not effective.
4996 In s23_clnt.c, don't use special rollback-attack detection padding
4997 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
4998 client; similarly, in s23_srvr.c, don't do the rollback check if
4999 SSL 2.0 is the only protocol enabled in the server.
5002 *) Make it possible to get hexdumps of unprintable data with 'openssl
5003 asn1parse'. By implication, the functions ASN1_parse_dump() and
5004 BIO_dump_indent() are added.
5007 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
5008 these print out strings and name structures based on various
5009 flags including RFC2253 support and proper handling of
5010 multibyte characters. Added options to the 'x509' utility
5011 to allow the various flags to be set.
5014 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
5015 Also change the functions X509_cmp_current_time() and
5016 X509_gmtime_adj() work with an ASN1_TIME structure,
5017 this will enable certificates using GeneralizedTime in validity
5018 dates to be checked.
5021 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
5022 negative public key encodings) on by default,
5023 NO_NEG_PUBKEY_BUG can be set to disable it.
5026 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
5027 content octets. An i2c_ASN1_OBJECT is unnecessary because
5028 the encoding can be trivially obtained from the structure.
5031 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
5032 not read locks (CRYPTO_r_[un]lock).
5035 *) A first attempt at creating official support for shared
5036 libraries through configuration. I've kept it so the
5037 default is static libraries only, and the OpenSSL programs
5038 are always statically linked for now, but there are
5039 preparations for dynamic linking in place.
5040 This has been tested on Linux and Tru64.
5043 *) Randomness polling function for Win9x, as described in:
5044 Peter Gutmann, Software Generation of Practically Strong
5048 *) Fix so PRNG is seeded in req if using an already existing
5052 *) New options to smime application. -inform and -outform
5053 allow alternative formats for the S/MIME message including
5054 PEM and DER. The -content option allows the content to be
5055 specified separately. This should allow things like Netscape
5056 form signing output easier to verify.
5059 *) Fix the ASN1 encoding of tags using the 'long form'.
5062 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
5063 STRING types. These convert content octets to and from the
5064 underlying type. The actual tag and length octets are
5065 already assumed to have been read in and checked. These
5066 are needed because all other string types have virtually
5067 identical handling apart from the tag. By having versions
5068 of the ASN1 functions that just operate on content octets
5069 IMPLICIT tagging can be handled properly. It also allows
5070 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
5071 and ASN1_INTEGER are identical apart from the tag.
5074 *) Change the handling of OID objects as follows:
5076 - New object identifiers are inserted in objects.txt, following
5077 the syntax given in objects.README.
5078 - objects.pl is used to process obj_mac.num and create a new
5080 - obj_dat.pl is used to create a new obj_dat.h, using the data in
5083 This is currently kind of a hack, and the perl code in objects.pl
5084 isn't very elegant, but it works as I intended. The simplest way
5085 to check that it worked correctly is to look in obj_dat.h and
5086 check the array nid_objs and make sure the objects haven't moved
5087 around (this is important!). Additions are OK, as well as
5088 consistent name changes.
5091 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
5094 *) Addition of the command line parameter '-rand file' to 'openssl req'.
5095 The given file adds to whatever has already been seeded into the
5096 random pool through the RANDFILE configuration file option or
5097 environment variable, or the default random state file.
5100 *) mkstack.pl now sorts each macro group into lexical order.
5101 Previously the output order depended on the order the files
5102 appeared in the directory, resulting in needless rewriting
5106 *) Patches to make OpenSSL compile under Win32 again. Mostly
5107 work arounds for the VC++ problem that it treats func() as
5108 func(void). Also stripped out the parts of mkdef.pl that
5109 added extra typesafe functions: these no longer exist.
5112 *) Reorganisation of the stack code. The macros are now all
5113 collected in safestack.h . Each macro is defined in terms of
5114 a "stack macro" of the form SKM_<name>(type, a, b). The
5115 DEBUG_SAFESTACK is now handled in terms of function casts,
5116 this has the advantage of retaining type safety without the
5117 use of additional functions. If DEBUG_SAFESTACK is not defined
5118 then the non typesafe macros are used instead. Also modified the
5119 mkstack.pl script to handle the new form. Needs testing to see
5120 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
5121 the default if no major problems. Similar behaviour for ASN1_SET_OF
5122 and PKCS12_STACK_OF.
5125 *) When some versions of IIS use the 'NET' form of private key the
5126 key derivation algorithm is different. Normally MD5(password) is
5127 used as a 128 bit RC4 key. In the modified case
5128 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
5129 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
5130 as the old Netscape_RSA functions except they have an additional
5131 'sgckey' parameter which uses the modified algorithm. Also added
5132 an -sgckey command line option to the rsa utility. Thanks to
5133 Adrian Peck <bertie@ncipher.com> for posting details of the modified
5134 algorithm to openssl-dev.
5137 *) The evp_local.h macros were using 'c.##kname' which resulted in
5138 invalid expansion on some systems (SCO 5.0.5 for example).
5139 Corrected to 'c.kname'.
5140 [Phillip Porch <root@theporch.com>]
5142 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
5143 a STACK of email addresses from a certificate or request, these look
5144 in the subject name and the subject alternative name extensions and
5145 omit any duplicate addresses.
5148 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
5149 This makes DSA verification about 2 % faster.
5152 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
5153 (meaning that now 2^5 values will be precomputed, which is only 4 KB
5154 plus overhead for 1024 bit moduli).
5155 This makes exponentiations about 0.5 % faster for 1024 bit
5156 exponents (as measured by "openssl speed rsa2048").
5159 *) Rename memory handling macros to avoid conflicts with other
5161 Malloc => OPENSSL_malloc
5162 Malloc_locked => OPENSSL_malloc_locked
5163 Realloc => OPENSSL_realloc
5164 Free => OPENSSL_free
5167 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
5168 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
5171 *) CygWin32 support.
5172 [John Jarvie <jjarvie@newsguy.com>]
5174 *) The type-safe stack code has been rejigged. It is now only compiled
5175 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
5176 by default all type-specific stack functions are "#define"d back to
5177 standard stack functions. This results in more streamlined output
5178 but retains the type-safety checking possibilities of the original
5182 *) The STACK code has been cleaned up, and certain type declarations
5183 that didn't make a lot of sense have been brought in line. This has
5184 also involved a cleanup of sorts in safestack.h to more correctly
5185 map type-safe stack functions onto their plain stack counterparts.
5186 This work has also resulted in a variety of "const"ifications of
5187 lots of the code, especially "_cmp" operations which should normally
5188 be prototyped with "const" parameters anyway.
5191 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
5192 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
5193 (The PRNG state consists of two parts, the large pool 'state' and 'md',
5194 where all of 'md' is used each time the PRNG is used, but 'state'
5195 is used only indexed by a cyclic counter. As entropy may not be
5196 well distributed from the beginning, 'md' is important as a
5197 chaining variable. However, the output function chains only half
5198 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
5199 all of 'md', and seeding with STATE_SIZE dummy bytes will result
5200 in all of 'state' being rewritten, with the new values depending
5201 on virtually all of 'md'. This overcomes the 80 bit limitation.)
5204 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
5205 the handshake is continued after ssl_verify_cert_chain();
5206 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
5207 can lead to 'unexplainable' connection aborts later.
5208 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
5210 *) Major EVP API cipher revision.
5211 Add hooks for extra EVP features. This allows various cipher
5212 parameters to be set in the EVP interface. Support added for variable
5213 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
5214 setting of RC2 and RC5 parameters.
5216 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
5219 Remove lots of duplicated code from the EVP library. For example *every*
5220 cipher init() function handles the 'iv' in the same way according to the
5221 cipher mode. They also all do nothing if the 'key' parameter is NULL and
5222 for CFB and OFB modes they zero ctx->num.
5224 New functionality allows removal of S/MIME code RC2 hack.
5226 Most of the routines have the same form and so can be declared in terms
5229 By shifting this to the top level EVP_CipherInit() it can be removed from
5230 all individual ciphers. If the cipher wants to handle IVs or keys
5231 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
5234 Change lots of functions like EVP_EncryptUpdate() to now return a
5235 value: although software versions of the algorithms cannot fail
5236 any installed hardware versions can.
5239 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
5240 this option is set, tolerate broken clients that send the negotiated
5241 protocol version number instead of the requested protocol version
5245 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
5246 i.e. non-zero for export ciphersuites, zero otherwise.
5247 Previous versions had this flag inverted, inconsistent with
5248 rsa_tmp_cb (..._TMP_RSA_CB).
5249 [Bodo Moeller; problem reported by Amit Chopra]
5251 *) Add missing DSA library text string. Work around for some IIS
5252 key files with invalid SEQUENCE encoding.
5255 *) Add a document (doc/standards.txt) that list all kinds of standards
5256 and so on that are implemented in OpenSSL.
5259 *) Enhance c_rehash script. Old version would mishandle certificates
5260 with the same subject name hash and wouldn't handle CRLs at all.
5261 Added -fingerprint option to crl utility, to support new c_rehash
5265 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
5268 *) Fix for SSL server purpose checking. Server checking was
5269 rejecting certificates which had extended key usage present
5270 but no ssl client purpose.
5271 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
5273 *) Make PKCS#12 code work with no password. The PKCS#12 spec
5274 is a little unclear about how a blank password is handled.
5275 Since the password in encoded as a BMPString with terminating
5276 double NULL a zero length password would end up as just the
5277 double NULL. However no password at all is different and is
5278 handled differently in the PKCS#12 key generation code. NS
5279 treats a blank password as zero length. MSIE treats it as no
5280 password on export: but it will try both on import. We now do
5281 the same: PKCS12_parse() tries zero length and no password if
5282 the password is set to "" or NULL (NULL is now a valid password:
5283 it wasn't before) as does the pkcs12 application.
5286 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
5287 perror when PEM_read_bio_X509_REQ fails, the error message must
5288 be obtained from the error queue.
5291 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
5292 it in ERR_remove_state if appropriate, and change ERR_get_state
5293 accordingly to avoid race conditions (this is necessary because
5294 thread_hash is no longer constant once set).
5297 *) Bugfix for linux-elf makefile.one.
5300 *) RSA_get_default_method() will now cause a default
5301 RSA_METHOD to be chosen if one doesn't exist already.
5302 Previously this was only set during a call to RSA_new()
5303 or RSA_new_method(NULL) meaning it was possible for
5304 RSA_get_default_method() to return NULL.
5307 *) Added native name translation to the existing DSO code
5308 that will convert (if the flag to do so is set) filenames
5309 that are sufficiently small and have no path information
5310 into a canonical native form. Eg. "blah" converted to
5311 "libblah.so" or "blah.dll" etc.
5314 *) New function ERR_error_string_n(e, buf, len) which is like
5315 ERR_error_string(e, buf), but writes at most 'len' bytes
5316 including the 0 terminator. For ERR_error_string_n, 'buf'
5318 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
5320 *) CONF library reworked to become more general. A new CONF
5321 configuration file reader "class" is implemented as well as a
5322 new functions (NCONF_*, for "New CONF") to handle it. The now
5323 old CONF_* functions are still there, but are reimplemented to
5324 work in terms of the new functions. Also, a set of functions
5325 to handle the internal storage of the configuration data is
5326 provided to make it easier to write new configuration file
5327 reader "classes" (I can definitely see something reading a
5328 configuration file in XML format, for example), called _CONF_*,
5329 or "the configuration storage API"...
5331 The new configuration file reading functions are:
5333 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
5334 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
5336 NCONF_default, NCONF_WIN32
5338 NCONF_dump_fp, NCONF_dump_bio
5340 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
5341 NCONF_new creates a new CONF object. This works in the same way
5342 as other interfaces in OpenSSL, like the BIO interface.
5343 NCONF_dump_* dump the internal storage of the configuration file,
5344 which is useful for debugging. All other functions take the same
5345 arguments as the old CONF_* functions wth the exception of the
5346 first that must be a `CONF *' instead of a `LHASH *'.
5348 To make it easer to use the new classes with the old CONF_* functions,
5349 the function CONF_set_default_method is provided.
5352 *) Add '-tls1' option to 'openssl ciphers', which was already
5353 mentioned in the documentation but had not been implemented.
5354 (This option is not yet really useful because even the additional
5355 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
5358 *) Initial DSO code added into libcrypto for letting OpenSSL (and
5359 OpenSSL-based applications) load shared libraries and bind to
5360 them in a portable way.
5361 [Geoff Thorpe, with contributions from Richard Levitte]
5363 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
5365 *) Make sure _lrotl and _lrotr are only used with MSVC.
5367 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
5368 (the default implementation of RAND_status).
5370 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
5371 to '-clrext' (= clear extensions), as intended and documented.
5372 [Bodo Moeller; inconsistency pointed out by Michael Attili
5375 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
5376 was larger than the MD block size.
5377 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
5379 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
5380 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
5381 using the passed key: if the passed key was a private key the result
5382 of X509_print(), for example, would be to print out all the private key
5386 *) des_quad_cksum() byte order bug fix.
5387 [Ulf Möller, using the problem description in krb4-0.9.7, where
5388 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
5390 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
5392 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
5394 *) For easily testing in shell scripts whether some command
5395 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
5396 returns with exit code 0 iff no command of the given name is available.
5397 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
5398 the output goes to stdout and nothing is printed to stderr.
5399 Additional arguments are always ignored.
5401 Since for each cipher there is a command of the same name,
5402 the 'no-cipher' compilation switches can be tested this way.
5404 ('openssl no-XXX' is not able to detect pseudo-commands such
5405 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
5408 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
5411 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
5412 is set; it will be thrown away anyway because each handshake creates
5414 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
5415 to parameters -- in previous versions (since OpenSSL 0.9.3) the
5416 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
5417 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
5420 *) New s_client option -ign_eof: EOF at stdin is ignored, and
5421 'Q' and 'R' lose their special meanings (quit/renegotiate).
5422 This is part of what -quiet does; unlike -quiet, -ign_eof
5423 does not suppress any output.
5426 *) Add compatibility options to the purpose and trust code. The
5427 purpose X509_PURPOSE_ANY is "any purpose" which automatically
5428 accepts a certificate or CA, this was the previous behaviour,
5429 with all the associated security issues.
5431 X509_TRUST_COMPAT is the old trust behaviour: only and
5432 automatically trust self signed roots in certificate store. A
5433 new trust setting X509_TRUST_DEFAULT is used to specify that
5434 a purpose has no associated trust setting and it should instead
5435 use the value in the default purpose.
5438 *) Fix the PKCS#8 DSA private key code so it decodes keys again
5439 and fix a memory leak.
5442 *) In util/mkerr.pl (which implements 'make errors'), preserve
5443 reason strings from the previous version of the .c file, as
5444 the default to have only downcase letters (and digits) in
5445 automatically generated reasons codes is not always appropriate.
5448 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
5449 using strerror. Previously, ERR_reason_error_string() returned
5450 library names as reason strings for SYSerr; but SYSerr is a special
5451 case where small numbers are errno values, not library numbers.
5454 *) Add '-dsaparam' option to 'openssl dhparam' application. This
5455 converts DSA parameters into DH parameters. (When creating parameters,
5456 DSA_generate_parameters is used.)
5459 *) Include 'length' (recommended exponent length) in C code generated
5460 by 'openssl dhparam -C'.
5463 *) The second argument to set_label in perlasm was already being used
5464 so couldn't be used as a "file scope" flag. Moved to third argument
5468 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
5469 instead of RAND_bytes for encryption IVs and salts.
5472 *) Include RAND_status() into RAND_METHOD instead of implementing
5473 it only for md_rand.c Otherwise replacing the PRNG by calling
5474 RAND_set_rand_method would be impossible.
5477 *) Don't let DSA_generate_key() enter an infinite loop if the random
5478 number generation fails.
5481 *) New 'rand' application for creating pseudo-random output.
5484 *) Added configuration support for Linux/IA64
5485 [Rolf Haberrecker <rolf@suse.de>]
5487 *) Assembler module support for Mingw32.
5490 *) Shared library support for HPUX (in shlib/).
5491 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
5493 *) Shared library support for Solaris gcc.
5494 [Lutz Behnke <behnke@trustcenter.de>]
5496 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
5498 *) PKCS7_encrypt() was adding text MIME headers twice because they
5499 were added manually and by SMIME_crlf_copy().
5502 *) In bntest.c don't call BN_rand with zero bits argument.
5503 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
5505 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
5506 case was implemented. This caused BN_div_recp() to fail occasionally.
5509 *) Add an optional second argument to the set_label() in the perl
5510 assembly language builder. If this argument exists and is set
5511 to 1 it signals that the assembler should use a symbol whose
5512 scope is the entire file, not just the current function. This
5513 is needed with MASM which uses the format label:: for this scope.
5514 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
5516 *) Change the ASN1 types so they are typedefs by default. Before
5517 almost all types were #define'd to ASN1_STRING which was causing
5518 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
5522 *) Change names of new functions to the new get1/get0 naming
5523 convention: After 'get1', the caller owns a reference count
5524 and has to call ..._free; 'get0' returns a pointer to some
5525 data structure without incrementing reference counters.
5526 (Some of the existing 'get' functions increment a reference
5527 counter, some don't.)
5528 Similarly, 'set1' and 'add1' functions increase reference
5529 counters or duplicate objects.
5532 *) Allow for the possibility of temp RSA key generation failure:
5533 the code used to assume it always worked and crashed on failure.
5536 *) Fix potential buffer overrun problem in BIO_printf().
5537 [Ulf Möller, using public domain code by Patrick Powell; problem
5538 pointed out by David Sacerdote <das33@cornell.edu>]
5540 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
5541 RAND_egd() and RAND_status(). In the command line application,
5542 the EGD socket can be specified like a seed file using RANDFILE
5546 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
5547 Some CAs (e.g. Verisign) distribute certificates in this form.
5550 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
5551 list to exclude them. This means that no special compilation option
5552 is needed to use anonymous DH: it just needs to be included in the
5556 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
5557 EVP_MD_type. The old functionality is available in a new macro called
5558 EVP_MD_md(). Change code that uses it and update docs.
5561 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
5562 where the 'void *' argument is replaced by a function pointer argument.
5563 Previously 'void *' was abused to point to functions, which works on
5564 many platforms, but is not correct. As these functions are usually
5565 called by macros defined in OpenSSL header files, most source code
5566 should work without changes.
5569 *) <openssl/opensslconf.h> (which is created by Configure) now contains
5570 sections with information on -D... compiler switches used for
5571 compiling the library so that applications can see them. To enable
5572 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
5573 must be defined. E.g.,
5574 #define OPENSSL_ALGORITHM_DEFINES
5575 #include <openssl/opensslconf.h>
5576 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
5577 [Richard Levitte, Ulf and Bodo Möller]
5579 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
5583 *) Change the 'other' type in certificate aux info to a STACK_OF
5584 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
5585 the required ASN1 format: arbitrary types determined by an OID.
5588 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
5589 argument to 'req'. This is not because the function is newer or
5590 better than others it just uses the work 'NEW' in the certificate
5591 request header lines. Some software needs this.
5594 *) Reorganise password command line arguments: now passwords can be
5595 obtained from various sources. Delete the PEM_cb function and make
5596 it the default behaviour: i.e. if the callback is NULL and the
5597 usrdata argument is not NULL interpret it as a null terminated pass
5598 phrase. If usrdata and the callback are NULL then the pass phrase
5599 is prompted for as usual.
5602 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
5603 the support is automatically enabled. The resulting binaries will
5604 autodetect the card and use it if present.
5605 [Ben Laurie and Compaq Inc.]
5607 *) Work around for Netscape hang bug. This sends certificate request
5608 and server done in one record. Since this is perfectly legal in the
5609 SSL/TLS protocol it isn't a "bug" option and is on by default. See
5610 the bugs/SSLv3 entry for more info.
5613 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
5616 *) Add -rand argument to smime and pkcs12 applications and read/write
5620 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
5623 *) Add command line password options to the remaining applications.
5626 *) Bug fix for BN_div_recp() for numerators with an even number of
5630 *) More tests in bntest.c, and changed test_bn output.
5633 *) ./config recognizes MacOS X now.
5636 *) Bug fix for BN_div() when the first words of num and divsor are
5637 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
5640 *) Add support for various broken PKCS#8 formats, and command line
5641 options to produce them.
5644 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
5645 get temporary BIGNUMs from a BN_CTX.
5648 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
5652 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
5653 include a #define from the old name to the new. The original intent
5654 was that statically linked binaries could for example just call
5655 SSLeay_add_all_ciphers() to just add ciphers to the table and not
5656 link with digests. This never worked becayse SSLeay_add_all_digests()
5657 and SSLeay_add_all_ciphers() were in the same source file so calling
5658 one would link with the other. They are now in separate source files.
5661 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
5664 *) Use a less unusual form of the Miller-Rabin primality test (it used
5665 a binary algorithm for exponentiation integrated into the Miller-Rabin
5666 loop, our standard modexp algorithms are faster).
5669 *) Support for the EBCDIC character set completed.
5670 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
5672 *) Source code cleanups: use const where appropriate, eliminate casts,
5673 use void * instead of char * in lhash.
5676 *) Bugfix: ssl3_send_server_key_exchange was not restartable
5677 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
5678 this the server could overwrite ephemeral keys that the client
5682 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
5683 using 50 iterations of the Rabin-Miller test.
5685 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
5686 iterations of the Rabin-Miller test as required by the appendix
5687 to FIPS PUB 186[-1]) instead of DSA_is_prime.
5688 As BN_is_prime_fasttest includes trial division, DSA parameter
5689 generation becomes much faster.
5691 This implies a change for the callback functions in DSA_is_prime
5692 and DSA_generate_parameters: The callback function is called once
5693 for each positive witness in the Rabin-Miller test, not just
5694 occasionally in the inner loop; and the parameters to the
5695 callback function now provide an iteration count for the outer
5696 loop rather than for the current invocation of the inner loop.
5697 DSA_generate_parameters additionally can call the callback
5698 function with an 'iteration count' of -1, meaning that a
5699 candidate has passed the trial division test (when q is generated
5700 from an application-provided seed, trial division is skipped).
5703 *) New function BN_is_prime_fasttest that optionally does trial
5704 division before starting the Rabin-Miller test and has
5705 an additional BN_CTX * argument (whereas BN_is_prime always
5706 has to allocate at least one BN_CTX).
5707 'callback(1, -1, cb_arg)' is called when a number has passed the
5708 trial division stage.
5711 *) Fix for bug in CRL encoding. The validity dates weren't being handled
5715 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
5718 *) New function BN_pseudo_rand().
5721 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
5722 bignum version of BN_from_montgomery() with the working code from
5723 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
5727 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
5728 made it impossible to use the same SSL_SESSION data structure in
5729 SSL2 clients in multiple threads.
5732 *) The return value of RAND_load_file() no longer counts bytes obtained
5733 by stat(). RAND_load_file(..., -1) is new and uses the complete file
5734 to seed the PRNG (previously an explicit byte count was required).
5735 [Ulf Möller, Bodo Möller]
5737 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
5738 used (char *) instead of (void *) and had casts all over the place.
5741 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
5744 *) Retain source code compatibility for BN_prime_checks macro:
5745 BN_is_prime(..., BN_prime_checks, ...) now uses
5746 BN_prime_checks_for_size to determine the appropriate number of
5747 Rabin-Miller iterations.
5750 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
5751 DH_CHECK_P_NOT_SAFE_PRIME.
5752 (Check if this is true? OpenPGP calls them "strong".)
5755 *) Merge the functionality of "dh" and "gendh" programs into a new program
5756 "dhparam". The old programs are retained for now but will handle DH keys
5757 (instead of parameters) in future.
5760 *) Make the ciphers, s_server and s_client programs check the return values
5761 when a new cipher list is set.
5764 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
5765 ciphers. Before when the 56bit ciphers were enabled the sorting was
5768 The syntax for the cipher sorting has been extended to support sorting by
5769 cipher-strength (using the strength_bits hard coded in the tables).
5770 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
5772 Fix a bug in the cipher-command parser: when supplying a cipher command
5773 string with an "undefined" symbol (neither command nor alphanumeric
5774 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
5775 an error is flagged.
5777 Due to the strength-sorting extension, the code of the
5778 ssl_create_cipher_list() function was completely rearranged. I hope that
5779 the readability was also increased :-)
5780 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5782 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
5783 for the first serial number and places 2 in the serial number file. This
5784 avoids problems when the root CA is created with serial number zero and
5785 the first user certificate has the same issuer name and serial number
5789 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
5790 the new code. Add documentation for this stuff.
5793 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
5794 X509_*() to X509at_*() on the grounds that they don't handle X509
5795 structures and behave in an analagous way to the X509v3 functions:
5796 they shouldn't be called directly but wrapper functions should be used
5799 So we also now have some wrapper functions that call the X509at functions
5800 when passed certificate requests. (TO DO: similar things can be done with
5801 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
5802 things. Some of these need some d2i or i2d and print functionality
5803 because they handle more complex structures.)
5806 *) Add missing #ifndefs that caused missing symbols when building libssl
5807 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
5808 NO_RSA in ssl/s2*.c.
5809 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
5811 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
5812 has a return value which indicates the quality of the random data
5813 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
5814 error queue. New function RAND_pseudo_bytes() generates output that is
5815 guaranteed to be unique but not unpredictable. RAND_add is like
5816 RAND_seed, but takes an extra argument for an entropy estimate
5817 (RAND_seed always assumes full entropy).
5820 *) Do more iterations of Rabin-Miller probable prime test (specifically,
5821 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
5822 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
5823 in crypto/bn/bn_prime.c for the complete table). This guarantees a
5824 false-positive rate of at most 2^-80 for random input.
5827 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
5830 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
5831 in the 0.9.5 release), this returns the chain
5832 from an X509_CTX structure with a dup of the stack and all
5833 the X509 reference counts upped: so the stack will exist
5834 after X509_CTX_cleanup() has been called. Modify pkcs12.c
5837 Also make SSL_SESSION_print() print out the verify return
5841 *) Add manpage for the pkcs12 command. Also change the default
5842 behaviour so MAC iteration counts are used unless the new
5843 -nomaciter option is used. This improves file security and
5844 only older versions of MSIE (4.0 for example) need it.
5847 *) Honor the no-xxx Configure options when creating .DEF files.
5850 *) Add PKCS#10 attributes to field table: challengePassword,
5851 unstructuredName and unstructuredAddress. These are taken from
5852 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
5853 international characters are used.
5855 More changes to X509_ATTRIBUTE code: allow the setting of types
5856 based on strings. Remove the 'loc' parameter when adding
5857 attributes because these will be a SET OF encoding which is sorted
5861 *) Initial changes to the 'req' utility to allow request generation
5862 automation. This will allow an application to just generate a template
5863 file containing all the field values and have req construct the
5866 Initial support for X509_ATTRIBUTE handling. Stacks of these are
5867 used all over the place including certificate requests and PKCS#7
5868 structures. They are currently handled manually where necessary with
5869 some primitive wrappers for PKCS#7. The new functions behave in a
5870 manner analogous to the X509 extension functions: they allow
5871 attributes to be looked up by NID and added.
5873 Later something similar to the X509V3 code would be desirable to
5874 automatically handle the encoding, decoding and printing of the
5875 more complex types. The string types like challengePassword can
5876 be handled by the string table functions.
5878 Also modified the multi byte string table handling. Now there is
5879 a 'global mask' which masks out certain types. The table itself
5880 can use the flag STABLE_NO_MASK to ignore the mask setting: this
5881 is useful when for example there is only one permissible type
5882 (as in countryName) and using the mask might result in no valid
5886 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
5887 SSL_get_peer_finished to allow applications to obtain the latest
5888 Finished messages sent to the peer or expected from the peer,
5889 respectively. (SSL_get_peer_finished is usually the Finished message
5890 actually received from the peer, otherwise the protocol will be aborted.)
5892 As the Finished message are message digests of the complete handshake
5893 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
5894 be used for external authentication procedures when the authentication
5895 provided by SSL/TLS is not desired or is not enough.
5898 *) Enhanced support for Alpha Linux is added. Now ./config checks if
5899 the host supports BWX extension and if Compaq C is present on the
5900 $PATH. Just exploiting of the BWX extension results in 20-30%
5901 performance kick for some algorithms, e.g. DES and RC4 to mention
5902 a couple. Compaq C in turn generates ~20% faster code for MD5 and
5906 *) Add support for MS "fast SGC". This is arguably a violation of the
5907 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
5908 weak crypto and after checking the certificate is SGC a second one
5909 with strong crypto. MS SGC stops the first handshake after receiving
5910 the server certificate message and sends a second client hello. Since
5911 a server will typically do all the time consuming operations before
5912 expecting any further messages from the client (server key exchange
5913 is the most expensive) there is little difference between the two.
5915 To get OpenSSL to support MS SGC we have to permit a second client
5916 hello message after we have sent server done. In addition we have to
5917 reset the MAC if we do get this second client hello.
5920 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
5921 if a DER encoded private key is RSA or DSA traditional format. Changed
5922 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
5923 format DER encoded private key. Newer code should use PKCS#8 format which
5924 has the key type encoded in the ASN1 structure. Added DER private key
5925 support to pkcs8 application.
5928 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
5929 ciphersuites has been selected (as required by the SSL 3/TLS 1
5930 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
5931 is set, we interpret this as a request to violate the specification
5932 (the worst that can happen is a handshake failure, and 'correct'
5933 behaviour would result in a handshake failure anyway).
5936 *) In SSL_CTX_add_session, take into account that there might be multiple
5937 SSL_SESSION structures with the same session ID (e.g. when two threads
5938 concurrently obtain them from an external cache).
5939 The internal cache can handle only one SSL_SESSION with a given ID,
5940 so if there's a conflict, we now throw out the old one to achieve
5944 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
5945 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
5946 some routines that use cipher OIDs: some ciphers do not have OIDs
5947 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
5951 *) Simplify the trust setting structure and code. Now we just have
5952 two sequences of OIDs for trusted and rejected settings. These will
5953 typically have values the same as the extended key usage extension
5954 and any application specific purposes.
5956 The trust checking code now has a default behaviour: it will just
5957 check for an object with the same NID as the passed id. Functions can
5958 be provided to override either the default behaviour or the behaviour
5959 for a given id. SSL client, server and email already have functions
5960 in place for compatibility: they check the NID and also return "trusted"
5961 if the certificate is self signed.
5964 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
5965 traditional format into an EVP_PKEY structure.
5968 *) Add a password callback function PEM_cb() which either prompts for
5969 a password if usr_data is NULL or otherwise assumes it is a null
5970 terminated password. Allow passwords to be passed on command line
5971 environment or config files in a few more utilities.
5974 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
5975 keys. Add some short names for PKCS#8 PBE algorithms and allow them
5976 to be specified on the command line for the pkcs8 and pkcs12 utilities.
5977 Update documentation.
5980 *) Support for ASN1 "NULL" type. This could be handled before by using
5981 ASN1_TYPE but there wasn't any function that would try to read a NULL
5982 and produce an error if it couldn't. For compatibility we also have
5983 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
5984 don't allocate anything because they don't need to.
5987 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
5989 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
5991 *) Rebuild of the memory allocation routines used by OpenSSL code and
5992 possibly others as well. The purpose is to make an interface that
5993 provide hooks so anyone can build a separate set of allocation and
5994 deallocation routines to be used by OpenSSL, for example memory
5995 pool implementations, or something else, which was previously hard
5996 since Malloc(), Realloc() and Free() were defined as macros having
5997 the values malloc, realloc and free, respectively (except for Win32
5998 compilations). The same is provided for memory debugging code.
5999 OpenSSL already comes with functionality to find memory leaks, but
6000 this gives people a chance to debug other memory problems.
6002 With these changes, a new set of functions and macros have appeared:
6004 CRYPTO_set_mem_debug_functions() [F]
6005 CRYPTO_get_mem_debug_functions() [F]
6006 CRYPTO_dbg_set_options() [F]
6007 CRYPTO_dbg_get_options() [F]
6008 CRYPTO_malloc_debug_init() [M]
6010 The memory debug functions are NULL by default, unless the library
6011 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
6012 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
6013 gives the standard debugging functions that come with OpenSSL) or
6014 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
6015 provided by the library user) must be used. When the standard
6016 debugging functions are used, CRYPTO_dbg_set_options can be used to
6017 request additional information:
6018 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
6019 the CRYPTO_MDEBUG_xxx macro when compiling the library.
6021 Also, things like CRYPTO_set_mem_functions will always give the
6022 expected result (the new set of functions is used for allocation
6023 and deallocation) at all times, regardless of platform and compiler
6026 To finish it up, some functions that were never use in any other
6027 way than through macros have a new API and new semantic:
6030 CRYPTO_dbg_realloc()
6033 All macros of value have retained their old syntax.
6034 [Richard Levitte and Bodo Moeller]
6036 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
6037 ordering of SMIMECapabilities wasn't in "strength order" and there
6038 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
6042 *) Some ASN1 types with illegal zero length encoding (INTEGER,
6043 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
6044 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
6046 *) Merge in my S/MIME library for OpenSSL. This provides a simple
6047 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
6048 functionality to handle multipart/signed properly) and a utility
6049 called 'smime' to call all this stuff. This is based on code I
6050 originally wrote for Celo who have kindly allowed it to be
6051 included in OpenSSL.
6054 *) Add variants des_set_key_checked and des_set_key_unchecked of
6055 des_set_key (aka des_key_sched). Global variable des_check_key
6056 decides which of these is called by des_set_key; this way
6057 des_check_key behaves as it always did, but applications and
6058 the library itself, which was buggy for des_check_key == 1,
6059 have a cleaner way to pick the version they need.
6062 *) New function PKCS12_newpass() which changes the password of a
6066 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
6067 dynamic mix. In both cases the ids can be used as an index into the
6068 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
6069 functions so they accept a list of the field values and the
6070 application doesn't need to directly manipulate the X509_TRUST
6074 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
6078 *) Modify the way the V3 extension code looks up extensions. This now
6079 works in a similar way to the object code: we have some "standard"
6080 extensions in a static table which is searched with OBJ_bsearch()
6081 and the application can add dynamic ones if needed. The file
6082 crypto/x509v3/ext_dat.h now has the info: this file needs to be
6083 updated whenever a new extension is added to the core code and kept
6084 in ext_nid order. There is a simple program 'tabtest.c' which checks
6085 this. New extensions are not added too often so this file can readily
6086 be maintained manually.
6088 There are two big advantages in doing things this way. The extensions
6089 can be looked up immediately and no longer need to be "added" using
6090 X509V3_add_standard_extensions(): this function now does nothing.
6091 [Side note: I get *lots* of email saying the extension code doesn't
6092 work because people forget to call this function]
6093 Also no dynamic allocation is done unless new extensions are added:
6094 so if we don't add custom extensions there is no need to call
6095 X509V3_EXT_cleanup().
6098 *) Modify enc utility's salting as follows: make salting the default. Add a
6099 magic header, so unsalted files fail gracefully instead of just decrypting
6100 to garbage. This is because not salting is a big security hole, so people
6101 should be discouraged from doing it.
6104 *) Fixes and enhancements to the 'x509' utility. It allowed a message
6105 digest to be passed on the command line but it only used this
6106 parameter when signing a certificate. Modified so all relevant
6107 operations are affected by the digest parameter including the
6108 -fingerprint and -x509toreq options. Also -x509toreq choked if a
6109 DSA key was used because it didn't fix the digest.
6112 *) Initial certificate chain verify code. Currently tests the untrusted
6113 certificates for consistency with the verify purpose (which is set
6114 when the X509_STORE_CTX structure is set up) and checks the pathlength.
6116 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
6117 this is because it will reject chains with invalid extensions whereas
6118 every previous version of OpenSSL and SSLeay made no checks at all.
6120 Trust code: checks the root CA for the relevant trust settings. Trust
6121 settings have an initial value consistent with the verify purpose: e.g.
6122 if the verify purpose is for SSL client use it expects the CA to be
6123 trusted for SSL client use. However the default value can be changed to
6124 permit custom trust settings: one example of this would be to only trust
6125 certificates from a specific "secure" set of CAs.
6127 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
6128 which should be used for version portability: especially since the
6129 verify structure is likely to change more often now.
6131 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
6132 to set them. If not set then assume SSL clients will verify SSL servers
6135 Two new options to the verify program: -untrusted allows a set of
6136 untrusted certificates to be passed in and -purpose which sets the
6137 intended purpose of the certificate. If a purpose is set then the
6138 new chain verify code is used to check extension consistency.
6141 *) Support for the authority information access extension.
6144 *) Modify RSA and DSA PEM read routines to transparently handle
6145 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
6146 public keys in a format compatible with certificate
6147 SubjectPublicKeyInfo structures. Unfortunately there were already
6148 functions called *_PublicKey_* which used various odd formats so
6149 these are retained for compatibility: however the DSA variants were
6150 never in a public release so they have been deleted. Changed dsa/rsa
6151 utilities to handle the new format: note no releases ever handled public
6152 keys so we should be OK.
6154 The primary motivation for this change is to avoid the same fiasco
6155 that dogs private keys: there are several incompatible private key
6156 formats some of which are standard and some OpenSSL specific and
6157 require various evil hacks to allow partial transparent handling and
6158 even then it doesn't work with DER formats. Given the option anything
6159 other than PKCS#8 should be dumped: but the other formats have to
6160 stay in the name of compatibility.
6162 With public keys and the benefit of hindsight one standard format
6163 is used which works with EVP_PKEY, RSA or DSA structures: though
6164 it clearly returns an error if you try to read the wrong kind of key.
6166 Added a -pubkey option to the 'x509' utility to output the public key.
6167 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
6168 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
6169 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
6170 that do the same as the EVP_PKEY_assign_*() except they up the
6171 reference count of the added key (they don't "swallow" the
6175 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
6176 CRLs would fail if the file contained no certificates or no CRLs:
6177 added a new function to read in both types and return the number
6178 read: this means that if none are read it will be an error. The
6179 DER versions of the certificate and CRL reader would always fail
6180 because it isn't possible to mix certificates and CRLs in DER format
6181 without choking one or the other routine. Changed this to just read
6182 a certificate: this is the best we can do. Also modified the code
6183 in apps/verify.c to take notice of return codes: it was previously
6184 attempting to read in certificates from NULL pointers and ignoring
6185 any errors: this is one reason why the cert and CRL reader seemed
6186 to work. It doesn't check return codes from the default certificate
6187 routines: these may well fail if the certificates aren't installed.
6190 *) Code to support otherName option in GeneralName.
6193 *) First update to verify code. Change the verify utility
6194 so it warns if it is passed a self signed certificate:
6195 for consistency with the normal behaviour. X509_verify
6196 has been modified to it will now verify a self signed
6197 certificate if *exactly* the same certificate appears
6198 in the store: it was previously impossible to trust a
6199 single self signed certificate. This means that:
6200 openssl verify ss.pem
6201 now gives a warning about a self signed certificate but
6202 openssl verify -CAfile ss.pem ss.pem
6206 *) For servers, store verify_result in SSL_SESSION data structure
6207 (and add it to external session representation).
6208 This is needed when client certificate verifications fails,
6209 but an application-provided verification callback (set by
6210 SSL_CTX_set_cert_verify_callback) allows accepting the session
6211 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
6212 but returns 1): When the session is reused, we have to set
6213 ssl->verify_result to the appropriate error code to avoid
6215 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
6217 *) Fix a bug in the new PKCS#7 code: it didn't consider the
6218 case in PKCS7_dataInit() where the signed PKCS7 structure
6219 didn't contain any existing data because it was being created.
6220 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
6222 *) Add a salt to the key derivation routines in enc.c. This
6223 forms the first 8 bytes of the encrypted file. Also add a
6224 -S option to allow a salt to be input on the command line.
6227 *) New function X509_cmp(). Oddly enough there wasn't a function
6228 to compare two certificates. We do this by working out the SHA1
6229 hash and comparing that. X509_cmp() will be needed by the trust
6233 *) SSL_get1_session() is like SSL_get_session(), but increments
6234 the reference count in the SSL_SESSION returned.
6235 [Geoff Thorpe <geoff@eu.c2.net>]
6237 *) Fix for 'req': it was adding a null to request attributes.
6238 Also change the X509_LOOKUP and X509_INFO code to handle
6239 certificate auxiliary information.
6242 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
6246 *) Add the possibility to add extra information to the memory leak
6247 detecting output, to form tracebacks, showing from where each
6248 allocation was originated: CRYPTO_push_info("constant string") adds
6249 the string plus current file name and line number to a per-thread
6250 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
6251 is like calling CYRPTO_pop_info() until the stack is empty.
6252 Also updated memory leak detection code to be multi-thread-safe.
6255 *) Add options -text and -noout to pkcs7 utility and delete the
6256 encryption options which never did anything. Update docs.
6259 *) Add options to some of the utilities to allow the pass phrase
6260 to be included on either the command line (not recommended on
6261 OSes like Unix) or read from the environment. Update the
6262 manpages and fix a few bugs.
6265 *) Add a few manpages for some of the openssl commands.
6268 *) Fix the -revoke option in ca. It was freeing up memory twice,
6269 leaking and not finding already revoked certificates.
6272 *) Extensive changes to support certificate auxiliary information.
6273 This involves the use of X509_CERT_AUX structure and X509_AUX
6274 functions. An X509_AUX function such as PEM_read_X509_AUX()
6275 can still read in a certificate file in the usual way but it
6276 will also read in any additional "auxiliary information". By
6277 doing things this way a fair degree of compatibility can be
6278 retained: existing certificates can have this information added
6279 using the new 'x509' options.
6281 Current auxiliary information includes an "alias" and some trust
6282 settings. The trust settings will ultimately be used in enhanced
6283 certificate chain verification routines: currently a certificate
6284 can only be trusted if it is self signed and then it is trusted
6288 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
6289 The problem was that one of the replacement routines had not been working
6290 since SSLeay releases. For now the offending routine has been replaced
6291 with non-optimised assembler. Even so, this now gives around 95%
6292 performance improvement for 1024 bit RSA signs.
6295 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
6296 handling. Most clients have the effective key size in bits equal to
6297 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
6298 A few however don't do this and instead use the size of the decrypted key
6299 to determine the RC2 key length and the AlgorithmIdentifier to determine
6300 the effective key length. In this case the effective key length can still
6301 be 40 bits but the key length can be 168 bits for example. This is fixed
6302 by manually forcing an RC2 key into the EVP_PKEY structure because the
6303 EVP code can't currently handle unusual RC2 key sizes: it always assumes
6304 the key length and effective key length are equal.
6307 *) Add a bunch of functions that should simplify the creation of
6308 X509_NAME structures. Now you should be able to do:
6309 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
6310 and have it automatically work out the correct field type and fill in
6311 the structures. The more adventurous can try:
6312 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
6313 and it will (hopefully) work out the correct multibyte encoding.
6316 *) Change the 'req' utility to use the new field handling and multibyte
6317 copy routines. Before the DN field creation was handled in an ad hoc
6318 way in req, ca, and x509 which was rather broken and didn't support
6319 BMPStrings or UTF8Strings. Since some software doesn't implement
6320 BMPStrings or UTF8Strings yet, they can be enabled using the config file
6321 using the dirstring_type option. See the new comment in the default
6322 openssl.cnf for more info.
6325 *) Make crypto/rand/md_rand.c more robust:
6326 - Assure unique random numbers after fork().
6327 - Make sure that concurrent threads access the global counter and
6328 md serializably so that we never lose entropy in them
6329 or use exactly the same state in multiple threads.
6330 Access to the large state is not always serializable because
6331 the additional locking could be a performance killer, and
6332 md should be large enough anyway.
6335 *) New file apps/app_rand.c with commonly needed functionality
6336 for handling the random seed file.
6338 Use the random seed file in some applications that previously did not:
6340 dsaparam -genkey (which also ignored its '-rand' option),
6343 x509 (when signing).
6344 Except on systems with /dev/urandom, it is crucial to have a random
6345 seed file at least for key creation, DSA signing, and for DH exchanges;
6346 for RSA signatures we could do without one.
6348 gendh and gendsa (unlike genrsa) used to read only the first byte
6349 of each file listed in the '-rand' option. The function as previously
6350 found in genrsa is now in app_rand.c and is used by all programs
6351 that support '-rand'.
6354 *) In RAND_write_file, use mode 0600 for creating files;
6355 don't just chmod when it may be too late.
6358 *) Report an error from X509_STORE_load_locations
6359 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
6362 *) New function ASN1_mbstring_copy() this copies a string in either
6363 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
6364 into an ASN1_STRING type. A mask of permissible types is passed
6365 and it chooses the "minimal" type to use or an error if not type
6369 *) Add function equivalents to the various macros in asn1.h. The old
6370 macros are retained with an M_ prefix. Code inside the library can
6371 use the M_ macros. External code (including the openssl utility)
6372 should *NOT* in order to be "shared library friendly".
6375 *) Add various functions that can check a certificate's extensions
6376 to see if it usable for various purposes such as SSL client,
6377 server or S/MIME and CAs of these types. This is currently
6378 VERY EXPERIMENTAL but will ultimately be used for certificate chain
6379 verification. Also added a -purpose flag to x509 utility to
6380 print out all the purposes.
6383 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
6387 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
6388 for, obtain and decode and extension and obtain its critical flag.
6389 This allows all the necessary extension code to be handled in a
6390 single function call.
6393 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
6394 platforms. See crypto/rc4/rc4_enc.c for further details.
6397 *) New -noout option to asn1parse. This causes no output to be produced
6398 its main use is when combined with -strparse and -out to extract data
6399 from a file (which may not be in ASN.1 format).
6402 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
6403 when producing the local key id.
6404 [Richard Levitte <levitte@stacken.kth.se>]
6406 *) New option -dhparam in s_server. This allows a DH parameter file to be
6407 stated explicitly. If it is not stated then it tries the first server
6408 certificate file. The previous behaviour hard coded the filename
6412 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
6413 a public key to be input or output. For example:
6414 openssl rsa -in key.pem -pubout -out pubkey.pem
6415 Also added necessary DSA public key functions to handle this.
6418 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
6419 in the message. This was handled by allowing
6420 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
6421 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
6423 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
6424 to the end of the strings whereas this didn't. This would cause problems
6425 if strings read with d2i_ASN1_bytes() were later modified.
6426 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
6428 *) Fix for base64 decode bug. When a base64 bio reads only one line of
6429 data and it contains EOF it will end up returning an error. This is
6430 caused by input 46 bytes long. The cause is due to the way base64
6431 BIOs find the start of base64 encoded data. They do this by trying a
6432 trial decode on each line until they find one that works. When they
6433 do a flag is set and it starts again knowing it can pass all the
6434 data directly through the decoder. Unfortunately it doesn't reset
6435 the context it uses. This means that if EOF is reached an attempt
6436 is made to pass two EOFs through the context and this causes the
6437 resulting error. This can also cause other problems as well. As is
6438 usual with these problems it takes *ages* to find and the fix is
6439 trivial: move one line.
6440 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
6442 *) Ugly workaround to get s_client and s_server working under Windows. The
6443 old code wouldn't work because it needed to select() on sockets and the
6444 tty (for keypresses and to see if data could be written). Win32 only
6445 supports select() on sockets so we select() with a 1s timeout on the
6446 sockets and then see if any characters are waiting to be read, if none
6447 are present then we retry, we also assume we can always write data to
6448 the tty. This isn't nice because the code then blocks until we've
6449 received a complete line of data and it is effectively polling the
6450 keyboard at 1s intervals: however it's quite a bit better than not
6451 working at all :-) A dedicated Windows application might handle this
6452 with an event loop for example.
6455 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
6456 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
6457 will be called when RSA_sign() and RSA_verify() are used. This is useful
6458 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
6459 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
6460 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
6461 This necessitated the support of an extra signature type NID_md5_sha1
6462 for SSL signatures and modifications to the SSL library to use it instead
6463 of calling RSA_public_decrypt() and RSA_private_encrypt().
6466 *) Add new -verify -CAfile and -CApath options to the crl program, these
6467 will lookup a CRL issuers certificate and verify the signature in a
6468 similar way to the verify program. Tidy up the crl program so it
6469 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
6470 less strict. It will now permit CRL extensions even if it is not
6471 a V2 CRL: this will allow it to tolerate some broken CRLs.
6474 *) Initialize all non-automatic variables each time one of the openssl
6475 sub-programs is started (this is necessary as they may be started
6476 multiple times from the "OpenSSL>" prompt).
6477 [Lennart Bang, Bodo Moeller]
6479 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
6480 removing all other RSA functionality (this is what NO_RSA does). This
6481 is so (for example) those in the US can disable those operations covered
6482 by the RSA patent while allowing storage and parsing of RSA keys and RSA
6486 *) Non-copying interface to BIO pairs.
6487 (still largely untested)
6490 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
6491 ASCII string. This was handled independently in various places before.
6494 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
6495 UTF8 strings a character at a time.
6498 *) Use client_version from client hello to select the protocol
6499 (s23_srvr.c) and for RSA client key exchange verification
6500 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
6503 *) Add various utility functions to handle SPKACs, these were previously
6504 handled by poking round in the structure internals. Added new function
6505 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
6506 print, verify and generate SPKACs. Based on an original idea from
6507 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
6510 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
6513 *) Allow the config file extension section to be overwritten on the
6514 command line. Based on an original idea from Massimiliano Pala
6515 <madwolf@comune.modena.it>. The new option is called -extensions
6516 and can be applied to ca, req and x509. Also -reqexts to override
6517 the request extensions in req and -crlexts to override the crl extensions
6521 *) Add new feature to the SPKAC handling in ca. Now you can include
6522 the same field multiple times by preceding it by "XXXX." for example:
6525 this is the same syntax as used in the req config file.
6528 *) Allow certificate extensions to be added to certificate requests. These
6529 are specified in a 'req_extensions' option of the req section of the
6530 config file. They can be printed out with the -text option to req but
6531 are otherwise ignored at present.
6534 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
6535 data read consists of only the final block it would not decrypted because
6536 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
6537 A misplaced 'break' also meant the decrypted final block might not be
6538 copied until the next read.
6541 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
6542 a few extra parameters to the DH structure: these will be useful if
6543 for example we want the value of 'q' or implement X9.42 DH.
6546 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
6547 provides hooks that allow the default DSA functions or functions on a
6548 "per key" basis to be replaced. This allows hardware acceleration and
6549 hardware key storage to be handled without major modification to the
6550 library. Also added low level modexp hooks and CRYPTO_EX structure and
6551 associated functions.
6554 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
6555 as "read only": it can't be written to and the buffer it points to will
6556 not be freed. Reading from a read only BIO is much more efficient than
6557 a normal memory BIO. This was added because there are several times when
6558 an area of memory needs to be read from a BIO. The previous method was
6559 to create a memory BIO and write the data to it, this results in two
6560 copies of the data and an O(n^2) reading algorithm. There is a new
6561 function BIO_new_mem_buf() which creates a read only memory BIO from
6562 an area of memory. Also modified the PKCS#7 routines to use read only
6566 *) Bugfix: ssl23_get_client_hello did not work properly when called in
6567 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
6568 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
6569 but a retry condition occured while trying to read the rest.
6572 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
6573 NID_pkcs7_encrypted by default: this was wrong since this should almost
6574 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
6575 the encrypted data type: this is a more sensible place to put it and it
6576 allows the PKCS#12 code to be tidied up that duplicated this
6580 *) Changed obj_dat.pl script so it takes its input and output files on
6581 the command line. This should avoid shell escape redirection problems
6585 *) Initial support for certificate extension requests, these are included
6586 in things like Xenroll certificate requests. Included functions to allow
6587 extensions to be obtained and added.
6590 *) -crlf option to s_client and s_server for sending newlines as
6591 CRLF (as required by many protocols).
6594 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
6596 *) Install libRSAglue.a when OpenSSL is built with RSAref.
6597 [Ralf S. Engelschall]
6599 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
6600 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
6602 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
6606 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
6607 DH parameters/keys (q is lost during that conversion, but the resulting
6608 DH parameters contain its length).
6610 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
6611 much faster than DH_generate_parameters (which creates parameters
6612 where p = 2*q + 1), and also the smaller q makes DH computations
6613 much more efficient (160-bit exponentiation instead of 1024-bit
6614 exponentiation); so this provides a convenient way to support DHE
6615 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
6616 utter importance to use
6617 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6619 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6620 when such DH parameters are used, because otherwise small subgroup
6621 attacks may become possible!
6624 *) Avoid memory leak in i2d_DHparams.
6627 *) Allow the -k option to be used more than once in the enc program:
6628 this allows the same encrypted message to be read by multiple recipients.
6631 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
6632 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
6633 it will always use the numerical form of the OID, even if it has a short
6637 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
6638 method only got called if p,q,dmp1,dmq1,iqmp components were present,
6639 otherwise bn_mod_exp was called. In the case of hardware keys for example
6640 no private key components need be present and it might store extra data
6641 in the RSA structure, which cannot be accessed from bn_mod_exp.
6642 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
6643 private key operations.
6646 *) Added support for SPARC Linux.
6649 *) pem_password_cb function type incompatibly changed from
6650 typedef int pem_password_cb(char *buf, int size, int rwflag);
6652 ....(char *buf, int size, int rwflag, void *userdata);
6653 so that applications can pass data to their callbacks:
6654 The PEM[_ASN1]_{read,write}... functions and macros now take an
6655 additional void * argument, which is just handed through whenever
6656 the password callback is called.
6657 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
6659 New function SSL_CTX_set_default_passwd_cb_userdata.
6661 Compatibility note: As many C implementations push function arguments
6662 onto the stack in reverse order, the new library version is likely to
6663 interoperate with programs that have been compiled with the old
6664 pem_password_cb definition (PEM_whatever takes some data that
6665 happens to be on the stack as its last argument, and the callback
6666 just ignores this garbage); but there is no guarantee whatsoever that
6669 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
6670 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
6671 problems not only on Windows, but also on some Unix platforms.
6672 To avoid problematic command lines, these definitions are now in an
6673 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
6674 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
6677 *) MIPS III/IV assembler module is reimplemented.
6680 *) More DES library cleanups: remove references to srand/rand and
6681 delete an unused file.
6684 *) Add support for the the free Netwide assembler (NASM) under Win32,
6685 since not many people have MASM (ml) and it can be hard to obtain.
6686 This is currently experimental but it seems to work OK and pass all
6687 the tests. Check out INSTALL.W32 for info.
6690 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
6691 without temporary keys kept an extra copy of the server key,
6692 and connections with temporary keys did not free everything in case
6696 *) New function RSA_check_key and new openssl rsa option -check
6697 for verifying the consistency of RSA keys.
6698 [Ulf Moeller, Bodo Moeller]
6700 *) Various changes to make Win32 compile work:
6701 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
6702 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
6703 comparison" warnings.
6704 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
6707 *) Add a debugging option to PKCS#5 v2 key generation function: when
6708 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
6709 derived keys are printed to stderr.
6712 *) Copy the flags in ASN1_STRING_dup().
6713 [Roman E. Pavlov <pre@mo.msk.ru>]
6715 *) The x509 application mishandled signing requests containing DSA
6716 keys when the signing key was also DSA and the parameters didn't match.
6718 It was supposed to omit the parameters when they matched the signing key:
6719 the verifying software was then supposed to automatically use the CA's
6720 parameters if they were absent from the end user certificate.
6722 Omitting parameters is no longer recommended. The test was also
6723 the wrong way round! This was probably due to unusual behaviour in
6724 EVP_cmp_parameters() which returns 1 if the parameters match.
6725 This meant that parameters were omitted when they *didn't* match and
6726 the certificate was useless. Certificates signed with 'ca' didn't have
6728 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
6730 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
6731 The interface is as follows:
6732 Applications can use
6733 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
6734 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
6735 "off" is now the default.
6736 The library internally uses
6737 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
6738 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
6739 to disable memory-checking temporarily.
6741 Some inconsistent states that previously were possible (and were
6742 even the default) are now avoided.
6744 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
6745 with each memory chunk allocated; this is occasionally more helpful
6746 than just having a counter.
6748 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
6750 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
6754 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
6755 which largely parallels "options", but is for changing API behaviour,
6756 whereas "options" are about protocol behaviour.
6757 Initial "mode" flags are:
6759 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
6760 a single record has been written.
6761 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
6762 retries use the same buffer location.
6763 (But all of the contents must be
6767 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
6770 *) Fix problems with no-hmac etc.
6771 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
6773 *) New functions RSA_get_default_method(), RSA_set_method() and
6774 RSA_get_method(). These allows replacement of RSA_METHODs without having
6775 to mess around with the internals of an RSA structure.
6778 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
6779 Also really enable memory leak checks in openssl.c and in some
6781 [Chad C. Mulligan, Bodo Moeller]
6783 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
6784 up the length of negative integers. This has now been simplified to just
6785 store the length when it is first determined and use it later, rather
6786 than trying to keep track of where data is copied and updating it to
6788 [Steve Henson, reported by Brien Wheeler
6789 <bwheeler@authentica-security.com>]
6791 *) Add a new function PKCS7_signatureVerify. This allows the verification
6792 of a PKCS#7 signature but with the signing certificate passed to the
6793 function itself. This contrasts with PKCS7_dataVerify which assumes the
6794 certificate is present in the PKCS#7 structure. This isn't always the
6795 case: certificates can be omitted from a PKCS#7 structure and be
6796 distributed by "out of band" means (such as a certificate database).
6799 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
6800 function prototypes in pem.h, also change util/mkdef.pl to add the
6801 necessary function names.
6804 *) mk1mf.pl (used by Windows builds) did not properly read the
6805 options set by Configure in the top level Makefile, and Configure
6806 was not even able to write more than one option correctly.
6807 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
6810 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
6811 file to be loaded from a BIO or FILE pointer. The BIO version will
6812 for example allow memory BIOs to contain config info.
6815 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
6816 Whoever hopes to achieve shared-library compatibility across versions
6817 must use this, not the compile-time macro.
6818 (Exercise 0.9.4: Which is the minimum library version required by
6820 Note: All this applies only to multi-threaded programs, others don't
6824 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
6825 through a BIO pair triggered the default case, i.e.
6826 SSLerr(...,SSL_R_UNKNOWN_STATE).
6829 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
6830 can use the SSL library even if none of the specific BIOs is
6834 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
6835 for the encoded length.
6836 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
6838 *) Add initial documentation of the X509V3 functions.
6841 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
6842 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
6843 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
6844 secure PKCS#8 private key format with a high iteration count.
6847 *) Fix determination of Perl interpreter: A perl or perl5
6848 _directory_ in $PATH was also accepted as the interpreter.
6849 [Ralf S. Engelschall]
6851 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
6852 wrong with it but it was very old and did things like calling
6853 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
6857 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
6858 to use the new extension code.
6861 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
6862 with macros. This should make it easier to change their form, add extra
6863 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
6867 *) Add to configuration table a new entry that can specify an alternative
6868 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
6869 according to Mark Crispin <MRC@Panda.COM>.
6873 *) DES CBC did not update the IV. Weird.
6876 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
6877 Changing the behaviour of the former might break existing programs --
6878 where IV updating is needed, des_ncbc_encrypt can be used.
6881 *) When bntest is run from "make test" it drives bc to check its
6882 calculations, as well as internally checking them. If an internal check
6883 fails, it needs to cause bc to give a non-zero result or make test carries
6884 on without noticing the failure. Fixed.
6887 *) DES library cleanups.
6890 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
6891 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
6892 ciphers. NOTE: although the key derivation function has been verified
6893 against some published test vectors it has not been extensively tested
6894 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
6898 *) Instead of "mkdir -p", which is not fully portable, use new
6899 Perl script "util/mkdir-p.pl".
6902 *) Rewrite the way password based encryption (PBE) is handled. It used to
6903 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
6904 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
6905 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
6906 the 'parameter' field of the AlgorithmIdentifier is passed to the
6907 underlying key generation function so it must do its own ASN1 parsing.
6908 This has also changed the EVP_PBE_CipherInit() function which now has a
6909 'parameter' argument instead of literal salt and iteration count values
6910 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
6913 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
6914 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
6915 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
6916 KEY" because this clashed with PKCS#8 unencrypted string. Since this
6917 value was just used as a "magic string" and not used directly its
6918 value doesn't matter.
6921 *) Introduce some semblance of const correctness to BN. Shame C doesn't
6925 *) "linux-sparc64" configuration (ultrapenguin).
6926 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
6927 "linux-sparc" configuration.
6928 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
6930 *) config now generates no-xxx options for missing ciphers.
6933 *) Support the EBCDIC character set (work in progress).
6934 File ebcdic.c not yet included because it has a different license.
6935 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6937 *) Support BS2000/OSD-POSIX.
6938 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6940 *) Make callbacks for key generation use void * instead of char *.
6943 *) Make S/MIME samples compile (not yet tested).
6946 *) Additional typesafe stacks.
6949 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
6953 Changes between 0.9.3 and 0.9.3a [29 May 1999]
6955 *) New configuration variant "sco5-gcc".
6957 *) Updated some demos.
6958 [Sean O Riordain, Wade Scholine]
6960 *) Add missing BIO_free at exit of pkcs12 application.
6963 *) Fix memory leak in conf.c.
6966 *) Updates for Win32 to assembler version of MD5.
6969 *) Set #! path to perl in apps/der_chop to where we found it
6970 instead of using a fixed path.
6973 *) SHA library changes for irix64-mips4-cc.
6976 *) Improvements for VMS support.
6980 Changes between 0.9.2b and 0.9.3 [24 May 1999]
6982 *) Bignum library bug fix. IRIX 6 passes "make test" now!
6983 This also avoids the problems with SC4.2 and unpatched SC5.
6984 [Andy Polyakov <appro@fy.chalmers.se>]
6986 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
6987 These are required because of the typesafe stack would otherwise break
6988 existing code. If old code used a structure member which used to be STACK
6989 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
6990 sk_num or sk_value it would produce an error because the num, data members
6991 are not present in STACK_OF. Now it just produces a warning. sk_set
6992 replaces the old method of assigning a value to sk_value
6993 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
6994 that does this will no longer work (and should use sk_set instead) but
6995 this could be regarded as a "questionable" behaviour anyway.
6998 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
6999 correctly handle encrypted S/MIME data.
7002 *) Change type of various DES function arguments from des_cblock
7003 (which means, in function argument declarations, pointer to char)
7004 to des_cblock * (meaning pointer to array with 8 char elements),
7005 which allows the compiler to do more typechecking; it was like
7006 that back in SSLeay, but with lots of ugly casts.
7008 Introduce new type const_des_cblock.
7011 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
7012 problems: find RecipientInfo structure that matches recipient certificate
7013 and initialise the ASN1 structures properly based on passed cipher.
7016 *) Belatedly make the BN tests actually check the results.
7019 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
7020 to and from BNs: it was completely broken. New compilation option
7021 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
7022 key elements as negative integers.
7025 *) Reorganize and speed up MD5.
7026 [Andy Polyakov <appro@fy.chalmers.se>]
7029 [Richard Levitte <richard@levitte.org>]
7031 *) New option -out to asn1parse to allow the parsed structure to be
7032 output to a file. This is most useful when combined with the -strparse
7033 option to examine the output of things like OCTET STRINGS.
7036 *) Make SSL library a little more fool-proof by not requiring any longer
7037 that SSL_set_{accept,connect}_state be called before
7038 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
7039 in many applications because usually everything *appeared* to work as
7040 intended anyway -- now it really works as intended).
7043 *) Move openssl.cnf out of lib/.
7046 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
7047 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
7048 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
7049 [Ralf S. Engelschall]
7051 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
7052 handle PKCS#7 enveloped data properly.
7053 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
7055 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
7056 copying pointers. The cert_st handling is changed by this in
7057 various ways (and thus what used to be known as ctx->default_cert
7058 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
7059 any longer when s->cert does not give us what we need).
7060 ssl_cert_instantiate becomes obsolete by this change.
7061 As soon as we've got the new code right (possibly it already is?),
7062 we have solved a couple of bugs of the earlier code where s->cert
7063 was used as if it could not have been shared with other SSL structures.
7065 Note that using the SSL API in certain dirty ways now will result
7066 in different behaviour than observed with earlier library versions:
7067 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
7068 does not influence s as it used to.
7070 In order to clean up things more thoroughly, inside SSL_SESSION
7071 we don't use CERT any longer, but a new structure SESS_CERT
7072 that holds per-session data (if available); currently, this is
7073 the peer's certificate chain and, for clients, the server's certificate
7074 and temporary key. CERT holds only those values that can have
7075 meaningful defaults in an SSL_CTX.
7078 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
7079 from the internal representation. Various PKCS#7 fixes: remove some
7080 evil casts and set the enc_dig_alg field properly based on the signing
7084 *) Allow PKCS#12 password to be set from the command line or the
7085 environment. Let 'ca' get its config file name from the environment
7086 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
7090 *) Allow certificate policies extension to use an IA5STRING for the
7091 organization field. This is contrary to the PKIX definition but
7092 VeriSign uses it and IE5 only recognises this form. Document 'x509'
7096 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
7097 without disallowing inline assembler and the like for non-pedantic builds.
7100 *) Support Borland C++ builder.
7101 [Janez Jere <jj@void.si>, modified by Ulf Möller]
7106 *) SHA-1 cleanups and performance enhancements.
7107 [Andy Polyakov <appro@fy.chalmers.se>]
7109 *) Sparc v8plus assembler for the bignum library.
7110 [Andy Polyakov <appro@fy.chalmers.se>]
7112 *) Accept any -xxx and +xxx compiler options in Configure.
7115 *) Update HPUX configuration.
7118 *) Add missing sk_<type>_unshift() function to safestack.h
7119 [Ralf S. Engelschall]
7121 *) New function SSL_CTX_use_certificate_chain_file that sets the
7122 "extra_cert"s in addition to the certificate. (This makes sense
7123 only for "PEM" format files, as chains as a whole are not
7127 *) Support verify_depth from the SSL API.
7128 x509_vfy.c had what can be considered an off-by-one-error:
7129 Its depth (which was not part of the external interface)
7130 was actually counting the number of certificates in a chain;
7131 now it really counts the depth.
7134 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
7135 instead of X509err, which often resulted in confusing error
7136 messages since the error codes are not globally unique
7137 (e.g. an alleged error in ssl3_accept when a certificate
7138 didn't match the private key).
7140 *) New function SSL_CTX_set_session_id_context that allows to set a default
7141 value (so that you don't need SSL_set_session_id_context for each
7142 connection using the SSL_CTX).
7145 *) OAEP decoding bug fix.
7148 *) Support INSTALL_PREFIX for package builders, as proposed by
7152 *) New Configure options "threads" and "no-threads". For systems
7153 where the proper compiler options are known (currently Solaris
7154 and Linux), "threads" is the default.
7157 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
7160 *) Install various scripts to $(OPENSSLDIR)/misc, not to
7161 $(INSTALLTOP)/bin -- they shouldn't clutter directories
7162 such as /usr/local/bin.
7165 *) "make linux-shared" to build shared libraries.
7166 [Niels Poppe <niels@netbox.org>]
7168 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
7171 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
7172 extension adding in x509 utility.
7175 *) Remove NOPROTO sections and error code comments.
7178 *) Partial rewrite of the DEF file generator to now parse the ANSI
7182 *) New Configure options --prefix=DIR and --openssldir=DIR.
7185 *) Complete rewrite of the error code script(s). It is all now handled
7186 by one script at the top level which handles error code gathering,
7187 header rewriting and C source file generation. It should be much better
7188 than the old method: it now uses a modified version of Ulf's parser to
7189 read the ANSI prototypes in all header files (thus the old K&R definitions
7190 aren't needed for error creation any more) and do a better job of
7191 translating function codes into names. The old 'ASN1 error code imbedded
7192 in a comment' is no longer necessary and it doesn't use .err files which
7193 have now been deleted. Also the error code call doesn't have to appear all
7194 on one line (which resulted in some large lines...).
7197 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
7200 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
7201 0 (which usually indicates a closed connection), but continue reading.
7204 *) Fix some race conditions.
7207 *) Add support for CRL distribution points extension. Add Certificate
7208 Policies and CRL distribution points documentation.
7211 *) Move the autogenerated header file parts to crypto/opensslconf.h.
7214 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
7215 8 of keying material. Merlin has also confirmed interop with this fix
7216 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
7217 [Merlin Hughes <merlin@baltimore.ie>]
7219 *) Fix lots of warnings.
7220 [Richard Levitte <levitte@stacken.kth.se>]
7222 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
7223 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
7224 [Richard Levitte <levitte@stacken.kth.se>]
7226 *) Fix problems with sizeof(long) == 8.
7227 [Andy Polyakov <appro@fy.chalmers.se>]
7229 *) Change functions to ANSI C.
7232 *) Fix typos in error codes.
7233 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
7235 *) Remove defunct assembler files from Configure.
7238 *) SPARC v8 assembler BIGNUM implementation.
7239 [Andy Polyakov <appro@fy.chalmers.se>]
7241 *) Support for Certificate Policies extension: both print and set.
7242 Various additions to support the r2i method this uses.
7245 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
7246 return a const string when you are expecting an allocated buffer.
7249 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
7250 types DirectoryString and DisplayText.
7253 *) Add code to allow r2i extensions to access the configuration database,
7254 add an LHASH database driver and add several ctx helper functions.
7257 *) Fix an evil bug in bn_expand2() which caused various BN functions to
7258 fail when they extended the size of a BIGNUM.
7261 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
7262 support typesafe stack.
7265 *) Fix typo in SSL_[gs]et_options().
7266 [Nils Frostberg <nils@medcom.se>]
7268 *) Delete various functions and files that belonged to the (now obsolete)
7269 old X509V3 handling code.
7272 *) New Configure option "rsaref".
7275 *) Don't auto-generate pem.h.
7278 *) Introduce type-safe ASN.1 SETs.
7281 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
7282 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
7284 *) Introduce type-safe STACKs. This will almost certainly break lots of code
7285 that links with OpenSSL (well at least cause lots of warnings), but fear
7286 not: the conversion is trivial, and it eliminates loads of evil casts. A
7287 few STACKed things have been converted already. Feel free to convert more.
7288 In the fullness of time, I'll do away with the STACK type altogether.
7291 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
7292 specified in <certfile> by updating the entry in the index.txt file.
7293 This way one no longer has to edit the index.txt file manually for
7294 revoking a certificate. The -revoke option does the gory details now.
7295 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
7297 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
7298 `-text' option at all and this way the `-noout -text' combination was
7299 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
7300 [Ralf S. Engelschall]
7302 *) Make sure a corresponding plain text error message exists for the
7303 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
7304 verify callback function determined that a certificate was revoked.
7305 [Ralf S. Engelschall]
7307 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
7308 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
7309 all available cipers including rc5, which was forgotten until now.
7310 In order to let the testing shell script know which algorithms
7311 are available, a new (up to now undocumented) command
7312 "openssl list-cipher-commands" is used.
7315 *) Bugfix: s_client occasionally would sleep in select() when
7316 it should have checked SSL_pending() first.
7319 *) New functions DSA_do_sign and DSA_do_verify to provide access to
7320 the raw DSA values prior to ASN.1 encoding.
7323 *) Tweaks to Configure
7324 [Niels Poppe <niels@netbox.org>]
7326 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
7330 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
7333 *) New config option to avoid instructions that are illegal on the 80386.
7334 The default code is faster, but requires at least a 486.
7337 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
7338 SSL2_SERVER_VERSION (not used at all) macros, which are now the
7339 same as SSL2_VERSION anyway.
7342 *) New "-showcerts" option for s_client.
7345 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
7346 application. Various cleanups and fixes.
7349 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
7350 modify error routines to work internally. Add error codes and PBE init
7351 to library startup routines.
7354 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
7355 packing functions to asn1 and evp. Changed function names and error
7356 codes along the way.
7359 *) PKCS12 integration: and so it begins... First of several patches to
7360 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
7361 objects to objects.h
7364 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
7365 and display support for Thawte strong extranet extension.
7368 *) Add LinuxPPC support.
7369 [Jeff Dubrule <igor@pobox.org>]
7371 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
7372 bn_div_words in alpha.s.
7373 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
7375 *) Make sure the RSA OAEP test is skipped under -DRSAref because
7376 OAEP isn't supported when OpenSSL is built with RSAref.
7377 [Ulf Moeller <ulf@fitug.de>]
7379 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
7380 so they no longer are missing under -DNOPROTO.
7381 [Soren S. Jorvang <soren@t.dk>]
7384 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
7386 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
7387 doesn't work when the session is reused. Coming soon!
7390 *) Fix a security hole, that allows sessions to be reused in the wrong
7391 context thus bypassing client cert protection! All software that uses
7392 client certs and session caches in multiple contexts NEEDS PATCHING to
7393 allow session reuse! A fuller solution is in the works.
7394 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
7396 *) Some more source tree cleanups (removed obsolete files
7397 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
7398 permission on "config" script to be executable) and a fix for the INSTALL
7400 [Ulf Moeller <ulf@fitug.de>]
7402 *) Remove some legacy and erroneous uses of malloc, free instead of
7404 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
7406 *) Make rsa_oaep_test return non-zero on error.
7407 [Ulf Moeller <ulf@fitug.de>]
7409 *) Add support for native Solaris shared libraries. Configure
7410 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
7411 if someone would make that last step automatic.
7412 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
7414 *) ctx_size was not built with the right compiler during "make links". Fixed.
7417 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
7418 except NULL ciphers". This means the default cipher list will no longer
7419 enable NULL ciphers. They need to be specifically enabled e.g. with
7420 the string "DEFAULT:eNULL".
7423 *) Fix to RSA private encryption routines: if p < q then it would
7424 occasionally produce an invalid result. This will only happen with
7425 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
7428 *) Be less restrictive and allow also `perl util/perlpath.pl
7429 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
7430 because this way one can also use an interpreter named `perl5' (which is
7431 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
7432 installed as `perl').
7433 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7435 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
7436 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7438 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
7439 advapi32.lib to Win32 build and change the pem test comparision
7440 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
7441 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
7442 and crypto/des/ede_cbcm_enc.c.
7445 *) DES quad checksum was broken on big-endian architectures. Fixed.
7448 *) Comment out two functions in bio.h that aren't implemented. Fix up the
7449 Win32 test batch file so it (might) work again. The Win32 test batch file
7450 is horrible: I feel ill....
7453 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
7454 in e_os.h. Audit of header files to check ANSI and non ANSI
7455 sections: 10 functions were absent from non ANSI section and not exported
7456 from Windows DLLs. Fixed up libeay.num for new functions.
7459 *) Make `openssl version' output lines consistent.
7460 [Ralf S. Engelschall]
7462 *) Fix Win32 symbol export lists for BIO functions: Added
7463 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
7464 to ms/libeay{16,32}.def.
7465 [Ralf S. Engelschall]
7467 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
7468 fine under Unix and passes some trivial tests I've now added. But the
7469 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
7470 added to make sure no one expects that this stuff really works in the
7471 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
7472 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
7474 [Ralf S. Engelschall]
7476 *) Fix the generation of two part addresses in perl.
7477 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
7479 *) Add config entry for Linux on MIPS.
7480 [John Tobey <jtobey@channel1.com>]
7482 *) Make links whenever Configure is run, unless we are on Windoze.
7485 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
7486 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
7490 *) Add a useful kludge to allow package maintainers to specify compiler and
7491 other platforms details on the command line without having to patch the
7492 Configure script everytime: One now can use ``perl Configure
7493 <id>:<details>'', i.e. platform ids are allowed to have details appended
7494 to them (seperated by colons). This is treated as there would be a static
7495 pre-configured entry in Configure's %table under key <id> with value
7496 <details> and ``perl Configure <id>'' is called. So, when you want to
7497 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
7498 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
7499 now, which overrides the FreeBSD-elf entry on-the-fly.
7500 [Ralf S. Engelschall]
7502 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
7505 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
7506 on the `perl Configure ...' command line. This way one can compile
7507 OpenSSL libraries with Position Independent Code (PIC) which is needed
7508 for linking it into DSOs.
7509 [Ralf S. Engelschall]
7511 *) Remarkably, export ciphers were totally broken and no-one had noticed!
7515 *) Cleaned up the LICENSE document: The official contact for any license
7516 questions now is the OpenSSL core team under openssl-core@openssl.org.
7517 And add a paragraph about the dual-license situation to make sure people
7518 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
7519 to the OpenSSL toolkit.
7520 [Ralf S. Engelschall]
7522 *) General source tree makefile cleanups: Made `making xxx in yyy...'
7523 display consistent in the source tree and replaced `/bin/rm' by `rm'.
7524 Additonally cleaned up the `make links' target: Remove unnecessary
7525 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
7526 to speed processing and no longer clutter the display with confusing
7527 stuff. Instead only the actually done links are displayed.
7528 [Ralf S. Engelschall]
7530 *) Permit null encryption ciphersuites, used for authentication only. It used
7531 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
7532 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
7536 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
7537 signed attributes when verifying signatures (this would break them),
7538 the detached data encoding was wrong and public keys obtained using
7539 X509_get_pubkey() weren't freed.
7542 *) Add text documentation for the BUFFER functions. Also added a work around
7543 to a Win95 console bug. This was triggered by the password read stuff: the
7544 last character typed gets carried over to the next fread(). If you were
7545 generating a new cert request using 'req' for example then the last
7546 character of the passphrase would be CR which would then enter the first
7550 *) Added the new `Includes OpenSSL Cryptography Software' button as
7551 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
7552 button and can be used by applications based on OpenSSL to show the
7553 relationship to the OpenSSL project.
7554 [Ralf S. Engelschall]
7556 *) Remove confusing variables in function signatures in files
7557 ssl/ssl_lib.c and ssl/ssl.h.
7558 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7560 *) Don't install bss_file.c under PREFIX/include/
7561 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7563 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
7564 functions that return function pointers and has support for NT specific
7565 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
7566 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
7567 unsigned to signed types: this was killing the Win32 compile.
7570 *) Add new certificate file to stack functions,
7571 SSL_add_dir_cert_subjects_to_stack() and
7572 SSL_add_file_cert_subjects_to_stack(). These largely supplant
7573 SSL_load_client_CA_file(), and can be used to add multiple certs easily
7574 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
7575 This means that Apache-SSL and similar packages don't have to mess around
7576 to add as many CAs as they want to the preferred list.
7579 *) Experiment with doxygen documentation. Currently only partially applied to
7581 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
7582 openssl.doxy as the configuration file.
7585 *) Get rid of remaining C++-style comments which strict C compilers hate.
7586 [Ralf S. Engelschall, pointed out by Carlos Amengual]
7588 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
7589 compiled in by default: it has problems with large keys.
7592 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
7593 DH private keys and/or callback functions which directly correspond to
7594 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
7595 is needed for applications which have to configure certificates on a
7596 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
7598 For the RSA certificate situation is makes no difference, but
7599 for the DSA certificate situation this fixes the "no shared cipher"
7600 problem where the OpenSSL cipher selection procedure failed because the
7601 temporary keys were not overtaken from the context and the API provided
7602 no way to reconfigure them.
7603 The new functions now let applications reconfigure the stuff and they
7604 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
7605 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
7606 non-public-API function ssl_cert_instantiate() is used as a helper
7607 function and also to reduce code redundancy inside ssl_rsa.c.
7608 [Ralf S. Engelschall]
7610 *) Move s_server -dcert and -dkey options out of the undocumented feature
7611 area because they are useful for the DSA situation and should be
7612 recognized by the users.
7613 [Ralf S. Engelschall]
7615 *) Fix the cipher decision scheme for export ciphers: the export bits are
7616 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
7617 SSL_EXP_MASK. So, the original variable has to be used instead of the
7618 already masked variable.
7619 [Richard Levitte <levitte@stacken.kth.se>]
7621 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
7622 [Richard Levitte <levitte@stacken.kth.se>]
7624 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
7625 from `int' to `unsigned int' because it's a length and initialized by
7626 EVP_DigestFinal() which expects an `unsigned int *'.
7627 [Richard Levitte <levitte@stacken.kth.se>]
7629 *) Don't hard-code path to Perl interpreter on shebang line of Configure
7630 script. Instead use the usual Shell->Perl transition trick.
7631 [Ralf S. Engelschall]
7633 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
7634 (in addition to RSA certificates) to match the behaviour of `openssl dsa
7635 -noout -modulus' as it's already the case for `openssl rsa -noout
7636 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
7637 currently the public key is printed (a decision which was already done by
7638 `openssl dsa -modulus' in the past) which serves a similar purpose.
7639 Additionally the NO_RSA no longer completely removes the whole -modulus
7640 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
7642 [Ralf S. Engelschall]
7644 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
7645 BIO. See the source (crypto/evp/bio_ok.c) for more info.
7646 [Arne Ansper <arne@ats.cyber.ee>]
7648 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
7649 to be added. Now both 'req' and 'ca' can use new objects defined in the
7653 *) Add cool BIO that does syslog (or event log on NT).
7654 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
7656 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
7657 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
7658 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
7659 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
7662 *) Add preliminary config info for new extension code.
7665 *) Make RSA_NO_PADDING really use no padding.
7666 [Ulf Moeller <ulf@fitug.de>]
7668 *) Generate errors when private/public key check is done.
7671 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
7672 for some CRL extensions and new objects added.
7675 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
7676 key usage extension and fuller support for authority key id.
7679 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
7680 padding method for RSA, which is recommended for new applications in PKCS
7681 #1 v2.0 (RFC 2437, October 1998).
7682 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
7683 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
7684 against Bleichbacher's attack on RSA.
7685 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
7688 *) Updates to the new SSL compression code
7689 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7691 *) Fix so that the version number in the master secret, when passed
7692 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
7693 (because the server will not accept higher), that the version number
7694 is 0x03,0x01, not 0x03,0x00
7695 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7697 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
7698 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
7699 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
7702 *) Support for RAW extensions where an arbitrary extension can be
7703 created by including its DER encoding. See apps/openssl.cnf for
7707 *) Make sure latest Perl versions don't interpret some generated C array
7708 code as Perl array code in the crypto/err/err_genc.pl script.
7709 [Lars Weber <3weber@informatik.uni-hamburg.de>]
7711 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
7712 not many people have the assembler. Various Win32 compilation fixes and
7713 update to the INSTALL.W32 file with (hopefully) more accurate Win32
7717 *) Modify configure script 'Configure' to automatically create crypto/date.h
7718 file under Win32 and also build pem.h from pem.org. New script
7719 util/mkfiles.pl to create the MINFO file on environments that can't do a
7720 'make files': perl util/mkfiles.pl >MINFO should work.
7723 *) Major rework of DES function declarations, in the pursuit of correctness
7724 and purity. As a result, many evil casts evaporated, and some weirdness,
7725 too. You may find this causes warnings in your code. Zapping your evil
7726 casts will probably fix them. Mostly.
7729 *) Fix for a typo in asn1.h. Bug fix to object creation script
7730 obj_dat.pl. It considered a zero in an object definition to mean
7731 "end of object": none of the objects in objects.h have any zeros
7732 so it wasn't spotted.
7733 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
7735 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
7736 Masking (CBCM). In the absence of test vectors, the best I have been able
7737 to do is check that the decrypt undoes the encrypt, so far. Send me test
7738 vectors if you have them.
7741 *) Correct calculation of key length for export ciphers (too much space was
7742 allocated for null ciphers). This has not been tested!
7745 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
7746 message is now correct (it understands "crypto" and "ssl" on its
7747 command line). There is also now an "update" option. This will update
7748 the util/ssleay.num and util/libeay.num files with any new functions.
7750 perl util/mkdef.pl crypto ssl update
7751 it will update them.
7754 *) Overhauled the Perl interface (perl/*):
7755 - ported BN stuff to OpenSSL's different BN library
7756 - made the perl/ source tree CVS-aware
7757 - renamed the package from SSLeay to OpenSSL (the files still contain
7758 their history because I've copied them in the repository)
7759 - removed obsolete files (the test scripts will be replaced
7760 by better Test::Harness variants in the future)
7761 [Ralf S. Engelschall]
7763 *) First cut for a very conservative source tree cleanup:
7764 1. merge various obsolete readme texts into doc/ssleay.txt
7765 where we collect the old documents and readme texts.
7766 2. remove the first part of files where I'm already sure that we no
7767 longer need them because of three reasons: either they are just temporary
7768 files which were left by Eric or they are preserved original files where
7769 I've verified that the diff is also available in the CVS via "cvs diff
7770 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
7771 the crypto/md/ stuff).
7772 [Ralf S. Engelschall]
7774 *) More extension code. Incomplete support for subject and issuer alt
7775 name, issuer and authority key id. Change the i2v function parameters
7776 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
7777 what that's for :-) Fix to ASN1 macro which messed up
7778 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
7781 *) Preliminary support for ENUMERATED type. This is largely copied from the
7785 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
7786 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7788 *) Make sure `make rehash' target really finds the `openssl' program.
7789 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7791 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
7792 like to hear about it if this slows down other processors.
7795 *) Add CygWin32 platform information to Configure script.
7796 [Alan Batie <batie@aahz.jf.intel.com>]
7798 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
7799 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
7801 *) New program nseq to manipulate netscape certificate sequences
7804 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
7808 *) Fixes to BN code. Previously the default was to define BN_RECURSION
7809 but the BN code had some problems that would cause failures when
7810 doing certificate verification and some other functions.
7811 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7813 *) Add ASN1 and PEM code to support netscape certificate sequences.
7816 *) Add ASN1 and PEM code to support netscape certificate sequences.
7819 *) Add several PKIX and private extended key usage OIDs.
7822 *) Modify the 'ca' program to handle the new extension code. Modify
7823 openssl.cnf for new extension format, add comments.
7826 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
7827 and add a sample to openssl.cnf so req -x509 now adds appropriate
7831 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
7832 error code, add initial support to X509_print() and x509 application.
7835 *) Takes a deep breath and start addding X509 V3 extension support code. Add
7836 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
7837 stuff is currently isolated and isn't even compiled yet.
7840 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
7841 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
7842 Removed the versions check from X509 routines when loading extensions:
7843 this allows certain broken certificates that don't set the version
7844 properly to be processed.
7847 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
7848 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
7849 can still be regenerated with "make depend".
7852 *) Spelling mistake in C version of CAST-128.
7853 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
7855 *) Changes to the error generation code. The perl script err-code.pl
7856 now reads in the old error codes and retains the old numbers, only
7857 adding new ones if necessary. It also only changes the .err files if new
7858 codes are added. The makefiles have been modified to only insert errors
7859 when needed (to avoid needlessly modifying header files). This is done
7860 by only inserting errors if the .err file is newer than the auto generated
7861 C file. To rebuild all the error codes from scratch (the old behaviour)
7862 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
7863 or delete all the .err files.
7866 *) CAST-128 was incorrectly implemented for short keys. The C version has
7867 been fixed, but is untested. The assembler versions are also fixed, but
7868 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
7869 to regenerate it if needed.
7870 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
7871 Hagino <itojun@kame.net>]
7873 *) File was opened incorrectly in randfile.c.
7874 [Ulf Möller <ulf@fitug.de>]
7876 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
7877 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
7878 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
7879 al: it's just almost always a UTCTime. Note this patch adds new error
7880 codes so do a "make errors" if there are problems.
7883 *) Correct Linux 1 recognition in config.
7884 [Ulf Möller <ulf@fitug.de>]
7886 *) Remove pointless MD5 hash when using DSA keys in ca.
7887 [Anonymous <nobody@replay.com>]
7889 *) Generate an error if given an empty string as a cert directory. Also
7890 generate an error if handed NULL (previously returned 0 to indicate an
7891 error, but didn't set one).
7892 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
7894 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
7897 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
7898 parameters. This was causing a warning which killed off the Win32 compile.
7901 *) Remove C++ style comments from crypto/bn/bn_local.h.
7902 [Neil Costigan <neil.costigan@celocom.com>]
7904 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
7905 based on a text string, looking up short and long names and finally
7906 "dot" format. The "dot" format stuff didn't work. Added new function
7907 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
7908 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
7909 OID is not part of the table.
7912 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
7913 X509_LOOKUP_by_alias().
7916 *) Sort openssl functions by name.
7919 *) Get the gendsa program working (hopefully) and add it to app list. Remove
7920 encryption from sample DSA keys (in case anyone is interested the password
7924 *) Make _all_ *_free functions accept a NULL pointer.
7925 [Frans Heymans <fheymans@isaserver.be>]
7927 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
7929 [Anonymous <nobody@replay.com>]
7931 *) s_server should send the CAfile as acceptable CAs, not its own cert.
7932 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
7934 *) Don't blow it for numeric -newkey arguments to apps/req.
7935 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
7937 *) Temp key "for export" tests were wrong in s3_srvr.c.
7938 [Anonymous <nobody@replay.com>]
7940 *) Add prototype for temp key callback functions
7941 SSL_CTX_set_tmp_{rsa,dh}_callback().
7944 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
7945 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
7948 *) X509_name_add_entry() freed the wrong thing after an error.
7949 [Arne Ansper <arne@ats.cyber.ee>]
7951 *) rsa_eay.c would attempt to free a NULL context.
7952 [Arne Ansper <arne@ats.cyber.ee>]
7954 *) BIO_s_socket() had a broken should_retry() on Windoze.
7955 [Arne Ansper <arne@ats.cyber.ee>]
7957 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
7958 [Arne Ansper <arne@ats.cyber.ee>]
7960 *) Make sure the already existing X509_STORE->depth variable is initialized
7961 in X509_STORE_new(), but document the fact that this variable is still
7962 unused in the certificate verification process.
7963 [Ralf S. Engelschall]
7965 *) Fix the various library and apps files to free up pkeys obtained from
7966 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
7969 *) Fix reference counting in X509_PUBKEY_get(). This makes
7970 demos/maurice/example2.c work, amongst others, probably.
7971 [Steve Henson and Ben Laurie]
7973 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
7974 `openssl' and second, the shortcut symlinks for the `openssl <command>'
7975 are no longer created. This way we have a single and consistent command
7976 line interface `openssl <command>', similar to `cvs <command>'.
7977 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
7979 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
7980 BIT STRING wrapper always have zero unused bits.
7983 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
7986 *) Make the top-level INSTALL documentation easier to understand.
7989 *) Makefiles updated to exit if an error occurs in a sub-directory
7990 make (including if user presses ^C) [Paul Sutton]
7992 *) Make Montgomery context stuff explicit in RSA data structure.
7995 *) Fix build order of pem and err to allow for generated pem.h.
7998 *) Fix renumbering bug in X509_NAME_delete_entry().
8001 *) Enhanced the err-ins.pl script so it makes the error library number
8002 global and can add a library name. This is needed for external ASN1 and
8003 other error libraries.
8006 *) Fixed sk_insert which never worked properly.
8009 *) Fix ASN1 macros so they can handle indefinite length construted
8010 EXPLICIT tags. Some non standard certificates use these: they can now
8014 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
8015 into a single doc/ssleay.txt bundle. This way the information is still
8016 preserved but no longer messes up this directory. Now it's new room for
8017 the new set of documenation files.
8018 [Ralf S. Engelschall]
8020 *) SETs were incorrectly DER encoded. This was a major pain, because they
8021 shared code with SEQUENCEs, which aren't coded the same. This means that
8022 almost everything to do with SETs or SEQUENCEs has either changed name or
8023 number of arguments.
8024 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
8026 *) Fix test data to work with the above.
8029 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
8030 was already fixed by Eric for 0.9.1 it seems.
8031 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
8033 *) Autodetect FreeBSD3.
8036 *) Fix various bugs in Configure. This affects the following platforms:
8040 unixware-2.0-pentium
8044 *) Eliminate generated files from CVS. Reorder tests to regenerate files
8045 before they are needed.
8048 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
8052 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
8054 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
8055 changed SSLeay to OpenSSL in version strings.
8056 [Ralf S. Engelschall]
8058 *) Some fixups to the top-level documents.
8061 *) Fixed the nasty bug where rsaref.h was not found under compile-time
8062 because the symlink to include/ was missing.
8063 [Ralf S. Engelschall]
8065 *) Incorporated the popular no-RSA/DSA-only patches
8066 which allow to compile a RSA-free SSLeay.
8067 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
8069 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
8070 when "ssleay" is still not found.
8071 [Ralf S. Engelschall]
8073 *) Added more platforms to Configure: Cray T3E, HPUX 11,
8074 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
8076 *) Updated the README file.
8077 [Ralf S. Engelschall]
8079 *) Added various .cvsignore files in the CVS repository subdirs
8080 to make a "cvs update" really silent.
8081 [Ralf S. Engelschall]
8083 *) Recompiled the error-definition header files and added
8084 missing symbols to the Win32 linker tables.
8085 [Ralf S. Engelschall]
8087 *) Cleaned up the top-level documents;
8088 o new files: CHANGES and LICENSE
8089 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
8090 o merged COPYRIGHT into LICENSE
8091 o removed obsolete TODO file
8092 o renamed MICROSOFT to INSTALL.W32
8093 [Ralf S. Engelschall]
8095 *) Removed dummy files from the 0.9.1b source tree:
8096 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
8097 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
8098 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
8099 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
8100 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
8101 [Ralf S. Engelschall]
8103 *) Added various platform portability fixes.
8106 *) The Genesis of the OpenSSL rpject:
8107 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
8108 Young and Tim J. Hudson created while they were working for C2Net until
8110 [The OpenSSL Project]
8113 Changes between 0.9.0b and 0.9.1b [not released]
8115 *) Updated a few CA certificates under certs/
8118 *) Changed some BIGNUM api stuff.
8121 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
8122 DGUX x86, Linux Alpha, etc.
8125 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
8126 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
8130 *) Add -strparse option to asn1pars program which parses nested
8132 [Dr Stephen Henson <shenson@bigfoot.com>]
8134 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
8137 *) DSA fix for "ca" program.
8140 *) Added "-genkey" option to "dsaparam" program.
8143 *) Added RIPE MD160 (rmd160) message digest.
8146 *) Added -a (all) option to "ssleay version" command.
8149 *) Added PLATFORM define which is the id given to Configure.
8152 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
8155 *) Extended the ASN.1 parser routines.
8158 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
8161 *) Added a BN_CTX to the BN library.
8164 *) Fixed the weak key values in DES library
8167 *) Changed API in EVP library for cipher aliases.
8170 *) Added support for RC2/64bit cipher.
8173 *) Converted the lhash library to the crypto/mem.c functions.
8176 *) Added more recognized ASN.1 object ids.
8179 *) Added more RSA padding checks for SSL/TLS.
8182 *) Added BIO proxy/filter functionality.
8185 *) Added extra_certs to SSL_CTX which can be used
8186 send extra CA certificates to the client in the CA cert chain sending
8187 process. It can be configured with SSL_CTX_add_extra_chain_cert().
8190 *) Now Fortezza is denied in the authentication phase because
8191 this is key exchange mechanism is not supported by SSLeay at all.
8194 *) Additional PKCS1 checks.
8197 *) Support the string "TLSv1" for all TLS v1 ciphers.
8200 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
8201 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
8204 *) Fixed a few memory leaks.
8207 *) Fixed various code and comment typos.
8210 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
8211 bytes sent in the client random.
8212 [Edward Bishop <ebishop@spyglass.com>]