5 Changes between 0.9.8e and 0.9.9 [xx XXX xxxx]
7 *) Initial incomplete changes to avoid need for function casts in OpenSSL
8 when OPENSSL_NO_FCAST is set: some compilers (gcc 4.2 and later) reject
9 their use. Safestack is reimplemented using inline functions: tests show
10 that these calls are typically optimized away by compilers so they have
11 no additional overhead. Update ASN1 to avoid use of legacy functions.
14 *) Win32/64 targets are linked with Winsock2.
17 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
18 to external functions. This can be used to increase CRL handling
19 efficiency especially when CRLs are very large by (for example) storing
20 the CRL revoked certificates in a database.
23 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
24 new CRLs added to a directory can be used. New command line option
25 -verify_return_error to s_client and s_server. This causes real errors
26 to be returned by the verify callback instead of carrying on no matter
27 what. This reflects the way a "real world" verify callback would behave.
30 *) GOST engine, supporting several GOST algorithms and public key formats.
31 Kindly donated by Cryptocom.
34 *) Partial support for Issuing Distribution Point CRL extension. CRLs
35 partitioned by DP are handled but no indirect CRL or reason partitioning
36 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
37 selected via a scoring technique which handles IDP and AKID in CRLs.
40 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
41 will ultimately be used for all verify operations: this will remove the
42 X509_STORE dependency on certificate verification and allow alternative
43 lookup methods. X509_STORE based implementations of these two callbacks.
46 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
47 Modify get_crl() to find a valid (unexpired) CRL if possible.
50 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
51 this would be called X509_CRL_cmp() but that name is already used by
52 a function that just compares CRL issuer names. Cache several CRL
53 extensions in X509_CRL structure and cache CRLDP in X509.
56 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
57 this maps equivalent X509_NAME structures into a consistent structure.
58 Name comparison can then be performed rapidly using memcmp().
61 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
65 *) Allow digests to supply their own micalg string for S/MIME type using
66 the ctrl EVP_MD_CTRL_MICALG.
69 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
70 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
71 ctrl. It can then customise the structure before and/or after signing
75 *) New function OBJ_add_sigid() to allow application defined signature OIDs
76 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
77 to free up any added signature OIDs.
80 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
81 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
82 digest and cipher tables. New options added to openssl utility:
83 list-message-digest-algorithms and list-cipher-algorithms.
86 *) In addition to the numerical (unsigned long) thread ID, provide
87 for a pointer (void *) thread ID. This helps accomodate systems
88 that do not provide an unsigned long thread ID. OpenSSL assumes
89 it is in the same thread iff both the numerical and the pointer
90 thread ID agree; so applications are just required to define one
91 of them appropriately (e.g., by using a pointer to a per-thread
92 memory object malloc()ed by the application for the pointer-type
93 thread ID). Exactly analoguous to the existing functions
95 void CRYPTO_set_id_callback(unsigned long (*func)(void));
96 unsigned long (*CRYPTO_get_id_callback(void))(void);
97 unsigned long CRYPTO_thread_id(void);
99 we now have additional functions
101 void CRYPTO_set_idptr_callback(void *(*func)(void));
102 void *(*CRYPTO_get_idptr_callback(void))(void);
103 void *CRYPTO_thread_idptr(void);
105 also in <openssl/crypto.h>. The default value for
106 CRYPTO_thread_idptr() if the application has not provided its own
110 *) Change the array representation of binary polynomials: the list
111 of degrees of non-zero coefficients is now terminated with -1.
112 Previously it was terminated with 0, which was also part of the
113 value; thus, the array representation was not applicable to
114 polynomials where t^0 has coefficient zero. This change makes
115 the array representation useful in a more general context.
118 *) Various modifications and fixes to SSL/TLS cipher string
119 handling. For ECC, the code now distinguishes between fixed ECDH
120 with RSA certificates on the one hand and with ECDSA certificates
121 on the other hand, since these are separate ciphersuites. The
122 unused code for Fortezza ciphersuites has been removed.
124 For consistency with EDH, ephemeral ECDH is now called "EECDH"
125 (not "ECDHE"). For consistency with the code for DH
126 certificates, use of ECDH certificates is now considered ECDH
127 authentication, not RSA or ECDSA authentication (the latter is
128 merely the CA's signing algorithm and not actively used in the
131 The temporary ciphersuite alias "ECCdraft" is no longer
132 available, and ECC ciphersuites are no longer excluded from "ALL"
133 and "DEFAULT". The following aliases now exist for RFC 4492
134 ciphersuites, most of these by analogy with the DH case:
136 kECDHr - ECDH cert, signed with RSA
137 kECDHe - ECDH cert, signed with ECDSA
138 kECDH - ECDH cert (signed with either RSA or ECDSA)
139 kEECDH - ephemeral ECDH
140 ECDH - ECDH cert or ephemeral ECDH
146 AECDH - anonymous ECDH
147 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
151 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
152 Use correct micalg parameters depending on digest(s) in signed message.
155 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
156 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
159 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
160 an engine to register a method. Add ENGINE lookups for methods and
161 functional reference processing.
164 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
165 EVP_{Sign,Verify}* which allow an application to customise the signature
169 *) New -resign option to smime utility. This adds one or more signers
170 to an existing PKCS#7 signedData structure. Also -md option to use an
171 alternative message digest algorithm for signing.
174 *) Tidy up PKCS#7 routines and add new functions to make it easier to
175 create PKCS7 structures containing multiple signers. Update smime
176 application to support multiple signers.
179 *) New -macalg option to pkcs12 utility to allow setting of an alternative
183 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
184 Reorganize PBE internals to lookup from a static table using NIDs,
185 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
186 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
187 PRF which will be automatically used with PBES2.
190 *) Replace the algorithm specific calls to generate keys in "req" with the
194 *) Update PKCS#7 enveloped data routines to use new API. This is now
195 supported by any public key method supporting the encrypt operation. A
196 ctrl is added to allow the public key algorithm to examine or modify
197 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
201 *) Add a ctrl to asn1 method to allow a public key algorithm to express
202 a default digest type to use. In most cases this will be SHA1 but some
203 algorithms (such as GOST) need to specify an alternative digest. The
204 return value indicates how strong the prefernce is 1 means optional and
205 2 is mandatory (that is it is the only supported type). Modify
206 ASN1_item_sign() to accept a NULL digest argument to indicate it should
207 use the default md. Update openssl utilities to use the default digest
208 type for signing if it is not explicitly indicated.
211 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
212 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
213 signing method from the key type. This effectively removes the link
214 between digests and public key types.
217 *) Add an OID cross reference table and utility functions. Its purpose is to
218 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
219 rsaEncryption. This will allow some of the algorithm specific hackery
220 needed to use the correct OID to be removed.
223 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
224 structures for PKCS7_sign(). They are now set up by the relevant public
228 *) Add provisional EC pkey method with support for ECDSA and ECDH.
231 *) Add support for key derivation (agreement) in the API, DH method and
235 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
236 public and private key formats. As a side effect these add additional
237 command line functionality not previously available: DSA signatures can be
238 generated and verified using pkeyutl and DH key support and generation in
243 [Oliver Tappe <zooey@hirschkaefer.de>]
245 *) New make target "install_html_docs" installs HTML renditions of the
247 [Oliver Tappe <zooey@hirschkaefer.de>]
249 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
250 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
251 support key and parameter generation and add initial key generation
252 functionality for RSA.
255 *) Add functions for main EVP_PKEY_method operations. The undocumented
256 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
257 EVP_PKEY_{encrypt,decrypt}_old.
260 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
261 key API, doesn't do much yet.
264 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
265 public key algorithms. New option to openssl utility:
266 "list-public-key-algorithms" to print out info.
269 *) Implement the Supported Elliptic Curves Extension for
270 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
273 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
274 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
277 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
278 utilities such as rsa, dsa, dsaparam etc except they process any key
282 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
283 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
284 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
288 *) Initial support for pluggable public key ASN1.
289 De-spaghettify the public key ASN1 handling. Move public and private
290 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
291 algorithm specific handling to a single module within the relevant
292 algorithm directory. Add functions to allow (near) opaque processing
293 of public and private key structures.
296 *) Implement the Supported Point Formats Extension for
297 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
300 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
301 for the psk identity [hint] and the psk callback functions to the
302 SSL_SESSION, SSL and SSL_CTX structure.
305 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
309 SSL_CTX_use_psk_identity_hint
310 SSL_get_psk_identity_hint
312 SSL_use_psk_identity_hint
314 [Mika Kousa and Pasi Eronen of Nokia Corporation]
316 *) Add RFC 3161 compliant time stamp request creation, response generation
317 and response verification functionality.
318 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
320 *) Add initial support for TLS extensions, specifically for the server_name
321 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
322 have new members for a host name. The SSL data structure has an
323 additional member SSL_CTX *initial_ctx so that new sessions can be
324 stored in that context to allow for session resumption, even after the
325 SSL has been switched to a new SSL_CTX in reaction to a client's
326 server_name extension.
328 New functions (subject to change):
331 SSL_get_servername_type()
334 New CTRL codes and macros (subject to change):
336 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
337 - SSL_CTX_set_tlsext_servername_callback()
338 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
339 - SSL_CTX_set_tlsext_servername_arg()
340 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_hostname()
342 openssl s_client has a new '-servername ...' option.
344 openssl s_server has new options '-servername_host ...', '-cert2 ...',
345 '-key2 ...', '-servername_fatal' (subject to change). This allows
346 testing the HostName extension for a specific single host name ('-cert'
347 and '-key' remain fallbacks for handshakes without HostName
348 negotiation). If the unrecogninzed_name alert has to be sent, this by
349 default is a warning; it becomes fatal with the '-servername_fatal'
352 [Peter Sylvester, Remy Allais, Christophe Renou]
354 *) Whirlpool hash implementation is added.
357 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
358 bn(64,32). Because of instruction set limitations it doesn't have
359 any negative impact on performance. This was done mostly in order
360 to make it possible to share assembler modules, such as bn_mul_mont
361 implementations, between 32- and 64-bit builds without hassle.
364 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
365 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
369 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
370 dedicated Montgomery multiplication procedure, is introduced.
371 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
372 "64-bit" performance on certain 32-bit targets.
375 *) New option SSL_OP_NO_COMP to disable use of compression selectively
376 in SSL structures. New SSL ctrl to set maximum send fragment size.
377 Save memory by seeting the I/O buffer sizes dynamically instead of
378 using the maximum available value.
381 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
382 in addition to the text details.
385 *) Very, very preliminary EXPERIMENTAL support for printing of general
386 ASN1 structures. This currently produces rather ugly output and doesn't
387 handle several customised structures at all.
390 *) Integrated support for PVK file format and some related formats such
391 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
392 these in the 'rsa' and 'dsa' utilities.
395 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
398 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
399 place for the (very old) "NETSCAPE" format certificates which are now
400 handled using new ASN1 code equivalents.
403 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
404 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
405 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
408 *) Modify CRL distribution points extension code to print out previously
409 unsupported fields. Enhance extension setting code to allow setting of
413 *) Add print and set support for Issuing Distribution Point CRL extension.
416 *) Change 'Configure' script to enable Camellia by default.
419 Changes between 0.9.8d and 0.9.8e [XX xxx XXXX]
421 *) Have SSL/TLS server implementation tolerate "mismatched" record
422 protocol version while receiving ClientHello even if the
423 ClientHello is fragmented. (The server can't insist on the
424 particular protocol version it has chosen before the ServerHello
425 message has informed the client about his choice.)
428 *) Add RFC 3779 support.
429 [Rob Austein for ARIN, Ben Laurie]
431 *) Load error codes if they are not already present instead of using a
432 static variable. This allows them to be cleanly unloaded and reloaded.
433 Improve header file function name parsing.
436 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
438 *) Introduce limits to prevent malicious keys being able to
439 cause a denial of service. (CVE-2006-2940)
440 [Steve Henson, Bodo Moeller]
442 *) Fix ASN.1 parsing of certain invalid structures that can result
443 in a denial of service. (CVE-2006-2937) [Steve Henson]
445 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
446 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
448 *) Fix SSL client code which could crash if connecting to a
449 malicious SSLv2 server. (CVE-2006-4343)
450 [Tavis Ormandy and Will Drewry, Google Security Team]
452 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
453 match only those. Before that, "AES256-SHA" would be interpreted
454 as a pattern and match "AES128-SHA" too (since AES128-SHA got
455 the same strength classification in 0.9.7h) as we currently only
456 have a single AES bit in the ciphersuite description bitmap.
457 That change, however, also applied to ciphersuite strings such as
458 "RC4-MD5" that intentionally matched multiple ciphersuites --
459 namely, SSL 2.0 ciphersuites in addition to the more common ones
460 from SSL 3.0/TLS 1.0.
462 So we change the selection algorithm again: Naming an explicit
463 ciphersuite selects this one ciphersuite, and any other similar
464 ciphersuite (same bitmap) from *other* protocol versions.
465 Thus, "RC4-MD5" again will properly select both the SSL 2.0
466 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
468 Since SSL 2.0 does not have any ciphersuites for which the
469 128/256 bit distinction would be relevant, this works for now.
470 The proper fix will be to use different bits for AES128 and
471 AES256, which would have avoided the problems from the beginning;
472 however, bits are scarce, so we can only do this in a new release
473 (not just a patchlevel) when we can change the SSL_CIPHER
474 definition to split the single 'unsigned long mask' bitmap into
475 multiple values to extend the available space.
479 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
481 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
482 (CVE-2006-4339) [Ben Laurie and Google Security Team]
484 *) Add AES IGE and biIGE modes.
487 *) Change the Unix randomness entropy gathering to use poll() when
488 possible instead of select(), since the latter has some
489 undesirable limitations.
490 [Darryl Miles via Richard Levitte and Bodo Moeller]
492 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
493 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
494 cannot be implicitly activated as part of, e.g., the "AES" alias.
495 However, please upgrade to OpenSSL 0.9.9[-dev] for
496 non-experimental use of the ECC ciphersuites to get TLS extension
497 support, which is required for curve and point format negotiation
498 to avoid potential handshake problems.
501 *) Disable rogue ciphersuites:
503 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
504 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
505 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
507 The latter two were purportedly from
508 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
511 Also deactive the remaining ciphersuites from
512 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
513 unofficial, and the ID has long expired.
516 *) Fix RSA blinding Heisenbug (problems sometimes occured on
517 dual-core machines) and other potential thread-safety issues.
520 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
521 versions), which is now available for royalty-free use
522 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
523 Also, add Camellia TLS ciphersuites from RFC 4132.
525 To minimize changes between patchlevels in the OpenSSL 0.9.8
526 series, Camellia remains excluded from compilation unless OpenSSL
527 is configured with 'enable-camellia'.
530 *) Disable the padding bug check when compression is in use. The padding
531 bug check assumes the first packet is of even length, this is not
532 necessarily true if compresssion is enabled and can result in false
533 positives causing handshake failure. The actual bug test is ancient
534 code so it is hoped that implementations will either have fixed it by
535 now or any which still have the bug do not support compression.
538 Changes between 0.9.8a and 0.9.8b [04 May 2006]
540 *) When applying a cipher rule check to see if string match is an explicit
541 cipher suite and only match that one cipher suite if it is.
544 *) Link in manifests for VC++ if needed.
545 [Austin Ziegler <halostatue@gmail.com>]
547 *) Update support for ECC-based TLS ciphersuites according to
548 draft-ietf-tls-ecc-12.txt with proposed changes (but without
549 TLS extensions, which are supported starting with the 0.9.9
550 branch, not in the OpenSSL 0.9.8 branch).
553 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
554 opaque EVP_CIPHER_CTX handling.
557 *) Fixes and enhancements to zlib compression code. We now only use
558 "zlib1.dll" and use the default __cdecl calling convention on Win32
559 to conform with the standards mentioned here:
560 http://www.zlib.net/DLL_FAQ.txt
561 Static zlib linking now works on Windows and the new --with-zlib-include
562 --with-zlib-lib options to Configure can be used to supply the location
563 of the headers and library. Gracefully handle case where zlib library
567 *) Several fixes and enhancements to the OID generation code. The old code
568 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
569 handle numbers larger than ULONG_MAX, truncated printing and had a
570 non standard OBJ_obj2txt() behaviour.
573 *) Add support for building of engines under engine/ as shared libraries
574 under VC++ build system.
577 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
578 Hopefully, we will not see any false combination of paths any more.
581 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
583 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
584 (part of SSL_OP_ALL). This option used to disable the
585 countermeasure against man-in-the-middle protocol-version
586 rollback in the SSL 2.0 server implementation, which is a bad
587 idea. (CVE-2005-2969)
589 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
590 for Information Security, National Institute of Advanced Industrial
591 Science and Technology [AIST], Japan)]
593 *) Add two function to clear and return the verify parameter flags.
596 *) Keep cipherlists sorted in the source instead of sorting them at
597 runtime, thus removing the need for a lock.
600 *) Avoid some small subgroup attacks in Diffie-Hellman.
601 [Nick Mathewson and Ben Laurie]
603 *) Add functions for well-known primes.
606 *) Extended Windows CE support.
607 [Satoshi Nakamura and Andy Polyakov]
609 *) Initialize SSL_METHOD structures at compile time instead of during
610 runtime, thus removing the need for a lock.
613 *) Make PKCS7_decrypt() work even if no certificate is supplied by
614 attempting to decrypt each encrypted key in turn. Add support to
618 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
620 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
623 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
626 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
627 key into the same file any more.
630 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
633 *) Add -utf8 command line and config file option to 'ca'.
634 [Stefan <stf@udoma.org]
636 *) Removed the macro des_crypt(), as it seems to conflict with some
637 libraries. Use DES_crypt().
640 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
641 involves renaming the source and generated shared-libs for
642 both. The engines will accept the corrected or legacy ids
643 ('ncipher' and '4758_cca' respectively) when binding. NB,
644 this only applies when building 'shared'.
645 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
647 *) Add attribute functions to EVP_PKEY structure. Modify
648 PKCS12_create() to recognize a CSP name attribute and
649 use it. Make -CSP option work again in pkcs12 utility.
652 *) Add new functionality to the bn blinding code:
653 - automatic re-creation of the BN_BLINDING parameters after
654 a fixed number of uses (currently 32)
655 - add new function for parameter creation
656 - introduce flags to control the update behaviour of the
657 BN_BLINDING parameters
658 - hide BN_BLINDING structure
659 Add a second BN_BLINDING slot to the RSA structure to improve
660 performance when a single RSA object is shared among several
664 *) Add support for DTLS.
665 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
667 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
668 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
671 *) Remove buggy and incompletet DH cert support from
672 ssl/ssl_rsa.c and ssl/s3_both.c
675 *) Use SHA-1 instead of MD5 as the default digest algorithm for
676 the apps/openssl applications.
679 *) Compile clean with "-Wall -Wmissing-prototypes
680 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
681 DEBUG_SAFESTACK must also be set.
684 *) Change ./Configure so that certain algorithms can be disabled by default.
685 The new counterpiece to "no-xxx" is "enable-xxx".
687 The patented RC5 and MDC2 algorithms will now be disabled unless
688 "enable-rc5" and "enable-mdc2", respectively, are specified.
690 (IDEA remains enabled despite being patented. This is because IDEA
691 is frequently required for interoperability, and there is no license
692 fee for non-commercial use. As before, "no-idea" can be used to
693 avoid this algorithm.)
697 *) Add processing of proxy certificates (see RFC 3820). This work was
698 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
699 EGEE (Enabling Grids for E-science in Europe).
702 *) RC4 performance overhaul on modern architectures/implementations, such
703 as Intel P4, IA-64 and AMD64.
706 *) New utility extract-section.pl. This can be used specify an alternative
707 section number in a pod file instead of having to treat each file as
708 a separate case in Makefile. This can be done by adding two lines to the
711 =for comment openssl_section:XXX
713 The blank line is mandatory.
717 *) New arguments -certform, -keyform and -pass for s_client and s_server
718 to allow alternative format key and certificate files and passphrase
722 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
723 update associated structures and add various utility functions.
725 Add new policy related verify parameters, include policy checking in
726 standard verify code. Enhance 'smime' application with extra parameters
727 to support policy checking and print out.
730 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
731 Nehemiah processors. These extensions support AES encryption in hardware
732 as well as RNG (though RNG support is currently disabled).
733 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
735 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
738 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
739 [Andy Polyakov and a number of other people]
741 *) Improved PowerPC platform support. Most notably BIGNUM assembler
742 implementation contributed by IBM.
743 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
745 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
746 exponent rather than 'unsigned long'. There is a corresponding change to
747 the new 'rsa_keygen' element of the RSA_METHOD structure.
748 [Jelte Jansen, Geoff Thorpe]
750 *) Functionality for creating the initial serial number file is now
751 moved from CA.pl to the 'ca' utility with a new option -create_serial.
753 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
754 number file to 1, which is bound to cause problems. To avoid
755 the problems while respecting compatibility between different 0.9.7
756 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
757 CA.pl for serial number initialization. With the new release 0.9.8,
758 we can fix the problem directly in the 'ca' utility.)
761 *) Reduced header interdepencies by declaring more opaque objects in
762 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
763 give fewer recursive includes, which could break lazy source code - so
764 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
765 developers should define this symbol when building and using openssl to
766 ensure they track the recommended behaviour, interfaces, [etc], but
767 backwards-compatible behaviour prevails when this isn't defined.
770 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
773 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
774 This will generate a random key of the appropriate length based on the
775 cipher context. The EVP_CIPHER can provide its own random key generation
776 routine to support keys of a specific form. This is used in the des and
777 3des routines to generate a key of the correct parity. Update S/MIME
778 code to use new functions and hence generate correct parity DES keys.
779 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
780 valid (weak or incorrect parity).
783 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
784 as looking them up. This is useful when the verified structure may contain
785 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
786 present unless the new PKCS7_NO_CRL flag is asserted.
789 *) Extend ASN1 oid configuration module. It now additionally accepts the
792 shortName = some long name, 1.2.3.4
795 *) Reimplemented the BN_CTX implementation. There is now no more static
796 limitation on the number of variables it can handle nor the depth of the
797 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
798 information can now expand as required, and rather than having a single
799 static array of bignums, BN_CTX now uses a linked-list of such arrays
800 allowing it to expand on demand whilst maintaining the usefulness of
804 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
805 to allow all RSA operations to function using a single BN_CTX.
808 *) Preliminary support for certificate policy evaluation and checking. This
809 is initially intended to pass the tests outlined in "Conformance Testing
810 of Relying Party Client Certificate Path Processing Logic" v1.07.
813 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
814 remained unused and not that useful. A variety of other little bignum
815 tweaks and fixes have also been made continuing on from the audit (see
819 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
820 associated ASN1, EVP and SSL functions and old ASN1 macros.
823 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
824 and this should never fail. So the return value from the use of
825 BN_set_word() (which can fail due to needless expansion) is now deprecated;
826 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
829 *) BN_CTX_get() should return zero-valued bignums, providing the same
830 initialised value as BN_new().
831 [Geoff Thorpe, suggested by Ulf Möller]
833 *) Support for inhibitAnyPolicy certificate extension.
836 *) An audit of the BIGNUM code is underway, for which debugging code is
837 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
838 is considered valid when processing BIGNUMs, and causes execution to
839 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
840 further steps are taken to deliberately pollute unused data in BIGNUM
841 structures to try and expose faulty code further on. For now, openssl will
842 (in its default mode of operation) continue to tolerate the inconsistent
843 forms that it has tolerated in the past, but authors and packagers should
844 consider trying openssl and their own applications when compiled with
845 these debugging symbols defined. It will help highlight potential bugs in
846 their own code, and will improve the test coverage for OpenSSL itself. At
847 some point, these tighter rules will become openssl's default to improve
848 maintainability, though the assert()s and other overheads will remain only
849 in debugging configurations. See bn.h for more details.
850 [Geoff Thorpe, Nils Larsch, Ulf Möller]
852 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
853 that can only be obtained through BN_CTX_new() (which implicitly
854 initialises it). The presence of this function only made it possible
855 to overwrite an existing structure (and cause memory leaks).
858 *) Because of the callback-based approach for implementing LHASH as a
859 template type, lh_insert() adds opaque objects to hash-tables and
860 lh_doall() or lh_doall_arg() are typically used with a destructor callback
861 to clean up those corresponding objects before destroying the hash table
862 (and losing the object pointers). So some over-zealous constifications in
863 LHASH have been relaxed so that lh_insert() does not take (nor store) the
864 objects as "const" and the lh_doall[_arg] callback wrappers are not
865 prototyped to have "const" restrictions on the object pointers they are
866 given (and so aren't required to cast them away any more).
869 *) The tmdiff.h API was so ugly and minimal that our own timing utility
870 (speed) prefers to use its own implementation. The two implementations
871 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
872 its object type properly exposed (MS_TM) instead of casting to/from "char
873 *". This may still change yet if someone realises MS_TM and "ms_time_***"
874 aren't necessarily the greatest nomenclatures - but this is what was used
875 internally to the implementation so I've used that for now.
878 *) Ensure that deprecated functions do not get compiled when
879 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
880 the self-tests were still using deprecated key-generation functions so
881 these have been updated also.
884 *) Reorganise PKCS#7 code to separate the digest location functionality
885 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
886 New function PKCS7_set_digest() to set the digest type for PKCS#7
887 digestedData type. Add additional code to correctly generate the
888 digestedData type and add support for this type in PKCS7 initialization
892 *) New function PKCS7_set0_type_other() this initializes a PKCS7
893 structure of type "other".
896 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
897 sure the loop does correctly stop and breaking ("division by zero")
898 modulus operations are not performed. The (pre-generated) prime
899 table crypto/bn/bn_prime.h was already correct, but it could not be
900 re-generated on some platforms because of the "division by zero"
901 situation in the script.
902 [Ralf S. Engelschall]
904 *) Update support for ECC-based TLS ciphersuites according to
905 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
906 SHA-1 now is only used for "small" curves (where the
907 representation of a field element takes up to 24 bytes); for
908 larger curves, the field element resulting from ECDH is directly
909 used as premaster secret.
910 [Douglas Stebila (Sun Microsystems Laboratories)]
912 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
913 curve secp160r1 to the tests.
914 [Douglas Stebila (Sun Microsystems Laboratories)]
916 *) Add the possibility to load symbols globally with DSO.
917 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
919 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
920 control of the error stack.
923 *) Add support for STORE in ENGINE.
926 *) Add the STORE type. The intention is to provide a common interface
927 to certificate and key stores, be they simple file-based stores, or
928 HSM-type store, or LDAP stores, or...
929 NOTE: The code is currently UNTESTED and isn't really used anywhere.
932 *) Add a generic structure called OPENSSL_ITEM. This can be used to
933 pass a list of arguments to any function as well as provide a way
934 for a function to pass data back to the caller.
937 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
938 works like BUF_strdup() but can be used to duplicate a portion of
939 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
943 *) Add the function sk_find_ex() which works like sk_find(), but will
944 return an index to an element even if an exact match couldn't be
945 found. The index is guaranteed to point at the element where the
946 searched-for key would be inserted to preserve sorting order.
949 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
950 takes an extra flags argument for optional functionality. Currently,
951 the following flags are defined:
953 OBJ_BSEARCH_VALUE_ON_NOMATCH
954 This one gets OBJ_bsearch_ex() to return a pointer to the first
955 element where the comparing function returns a negative or zero
958 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
959 This one gets OBJ_bsearch_ex() to return a pointer to the first
960 element where the comparing function returns zero. This is useful
961 if there are more than one element where the comparing function
965 *) Make it possible to create self-signed certificates with 'openssl ca'
966 in such a way that the self-signed certificate becomes part of the
967 CA database and uses the same mechanisms for serial number generation
968 as all other certificate signing. The new flag '-selfsign' enables
969 this functionality. Adapt CA.sh and CA.pl.in.
972 *) Add functionality to check the public key of a certificate request
973 against a given private. This is useful to check that a certificate
974 request can be signed by that key (self-signing).
977 *) Make it possible to have multiple active certificates with the same
978 subject in the CA index file. This is done only if the keyword
979 'unique_subject' is set to 'no' in the main CA section (default
980 if 'CA_default') of the configuration file. The value is saved
981 with the database itself in a separate index attribute file,
982 named like the index file with '.attr' appended to the name.
985 *) Generate muti valued AVAs using '+' notation in config files for
989 *) Support for nameConstraints certificate extension.
992 *) Support for policyConstraints certificate extension.
995 *) Support for policyMappings certificate extension.
998 *) Make sure the default DSA_METHOD implementation only uses its
999 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
1000 and change its own handlers to be NULL so as to remove unnecessary
1001 indirection. This lets alternative implementations fallback to the
1002 default implementation more easily.
1005 *) Support for directoryName in GeneralName related extensions
1009 *) Make it possible to link applications using Makefile.shared.
1010 Make that possible even when linking against static libraries!
1013 *) Support for single pass processing for S/MIME signing. This now
1014 means that S/MIME signing can be done from a pipe, in addition
1015 cleartext signing (multipart/signed type) is effectively streaming
1016 and the signed data does not need to be all held in memory.
1018 This is done with a new flag PKCS7_STREAM. When this flag is set
1019 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
1020 is done after the data is output (and digests calculated) in
1021 SMIME_write_PKCS7().
1024 *) Add full support for -rpath/-R, both in shared libraries and
1025 applications, at least on the platforms where it's known how
1029 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
1030 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
1031 will now compute a table of multiples of the generator that
1032 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
1033 faster (notably in the case of a single point multiplication,
1034 scalar * generator).
1035 [Nils Larsch, Bodo Moeller]
1037 *) IPv6 support for certificate extensions. The various extensions
1038 which use the IP:a.b.c.d can now take IPv6 addresses using the
1039 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
1043 *) Added an ENGINE that implements RSA by performing private key
1044 exponentiations with the GMP library. The conversions to and from
1045 GMP's mpz_t format aren't optimised nor are any montgomery forms
1046 cached, and on x86 it appears OpenSSL's own performance has caught up.
1047 However there are likely to be other architectures where GMP could
1048 provide a boost. This ENGINE is not built in by default, but it can be
1049 specified at Configure time and should be accompanied by the necessary
1050 linker additions, eg;
1051 ./config -DOPENSSL_USE_GMP -lgmp
1054 *) "openssl engine" will not display ENGINE/DSO load failure errors when
1055 testing availability of engines with "-t" - the old behaviour is
1056 produced by increasing the feature's verbosity with "-tt".
1059 *) ECDSA routines: under certain error conditions uninitialized BN objects
1060 could be freed. Solution: make sure initialization is performed early
1061 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
1065 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
1066 and DH_METHOD (eg. by ENGINE implementations) to override the normal
1067 software implementations. For DSA and DH, parameter generation can
1068 also be overriden by providing the appropriate method callbacks.
1071 *) Change the "progress" mechanism used in key-generation and
1072 primality testing to functions that take a new BN_GENCB pointer in
1073 place of callback/argument pairs. The new API functions have "_ex"
1074 postfixes and the older functions are reimplemented as wrappers for
1075 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
1076 declarations of the old functions to help (graceful) attempts to
1077 migrate to the new functions. Also, the new key-generation API
1078 functions operate on a caller-supplied key-structure and return
1079 success/failure rather than returning a key or NULL - this is to
1080 help make "keygen" another member function of RSA_METHOD etc.
1082 Example for using the new callback interface:
1084 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
1088 BN_GENCB_set(&my_cb, my_callback, my_arg);
1090 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
1091 /* For the meaning of a, b in calls to my_callback(), see the
1092 * documentation of the function that calls the callback.
1093 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
1094 * my_callback should return 1 if it wants BN_is_prime_ex()
1095 * to continue, or 0 to stop.
1100 *) Change the ZLIB compression method to be stateful, and make it
1101 available to TLS with the number defined in
1102 draft-ietf-tls-compression-04.txt.
1105 *) Add the ASN.1 structures and functions for CertificatePair, which
1106 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
1108 CertificatePair ::= SEQUENCE {
1109 forward [0] Certificate OPTIONAL,
1110 reverse [1] Certificate OPTIONAL,
1111 -- at least one of the pair shall be present -- }
1113 Also implement the PEM functions to read and write certificate
1114 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
1116 This needed to be defined, mostly for the sake of the LDAP
1117 attribute crossCertificatePair, but may prove useful elsewhere as
1121 *) Make it possible to inhibit symlinking of shared libraries in
1122 Makefile.shared, for Cygwin's sake.
1125 *) Extend the BIGNUM API by creating a function
1126 void BN_set_negative(BIGNUM *a, int neg);
1127 and a macro that behave like
1128 int BN_is_negative(const BIGNUM *a);
1130 to avoid the need to access 'a->neg' directly in applications.
1133 *) Implement fast modular reduction for pseudo-Mersenne primes
1134 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
1135 EC_GROUP_new_curve_GFp() will now automatically use this
1137 [Nils Larsch <nla@trustcenter.de>]
1139 *) Add new lock type (CRYPTO_LOCK_BN).
1142 *) Change the ENGINE framework to automatically load engines
1143 dynamically from specific directories unless they could be
1144 found to already be built in or loaded. Move all the
1145 current engines except for the cryptodev one to a new
1147 The engines in engines/ are built as shared libraries if
1148 the "shared" options was given to ./Configure or ./config.
1149 Otherwise, they are inserted in libcrypto.a.
1150 /usr/local/ssl/engines is the default directory for dynamic
1151 engines, but that can be overriden at configure time through
1152 the usual use of --prefix and/or --openssldir, and at run
1153 time with the environment variable OPENSSL_ENGINES.
1154 [Geoff Thorpe and Richard Levitte]
1156 *) Add Makefile.shared, a helper makefile to build shared
1157 libraries. Addapt Makefile.org.
1160 *) Add version info to Win32 DLLs.
1161 [Peter 'Luna' Runestig" <peter@runestig.com>]
1163 *) Add new 'medium level' PKCS#12 API. Certificates and keys
1164 can be added using this API to created arbitrary PKCS#12
1165 files while avoiding the low level API.
1167 New options to PKCS12_create(), key or cert can be NULL and
1168 will then be omitted from the output file. The encryption
1169 algorithm NIDs can be set to -1 for no encryption, the mac
1170 iteration count can be set to 0 to omit the mac.
1172 Enhance pkcs12 utility by making the -nokeys and -nocerts
1173 options work when creating a PKCS#12 file. New option -nomac
1174 to omit the mac, NONE can be set for an encryption algorithm.
1175 New code is modified to use the enhanced PKCS12_create()
1176 instead of the low level API.
1179 *) Extend ASN1 encoder to support indefinite length constructed
1180 encoding. This can output sequences tags and octet strings in
1181 this form. Modify pk7_asn1.c to support indefinite length
1182 encoding. This is experimental and needs additional code to
1183 be useful, such as an ASN1 bio and some enhanced streaming
1186 Extend template encode functionality so that tagging is passed
1187 down to the template encoder.
1190 *) Let 'openssl req' fail if an argument to '-newkey' is not
1191 recognized instead of using RSA as a default.
1194 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
1195 As these are not official, they are not included in "ALL";
1196 the "ECCdraft" ciphersuite group alias can be used to select them.
1197 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
1199 *) Add ECDH engine support.
1200 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
1202 *) Add ECDH in new directory crypto/ecdh/.
1203 [Douglas Stebila (Sun Microsystems Laboratories)]
1205 *) Let BN_rand_range() abort with an error after 100 iterations
1206 without success (which indicates a broken PRNG).
1209 *) Change BN_mod_sqrt() so that it verifies that the input value
1210 is really the square of the return value. (Previously,
1211 BN_mod_sqrt would show GIGO behaviour.)
1214 *) Add named elliptic curves over binary fields from X9.62, SECG,
1215 and WAP/WTLS; add OIDs that were still missing.
1217 [Sheueling Chang Shantz and Douglas Stebila
1218 (Sun Microsystems Laboratories)]
1220 *) Extend the EC library for elliptic curves over binary fields
1221 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
1224 EC_GF2m_simple_method
1228 EC_GROUP_new_curve_GF2m
1229 EC_GROUP_set_curve_GF2m
1230 EC_GROUP_get_curve_GF2m
1231 EC_POINT_set_affine_coordinates_GF2m
1232 EC_POINT_get_affine_coordinates_GF2m
1233 EC_POINT_set_compressed_coordinates_GF2m
1235 Point compression for binary fields is disabled by default for
1236 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
1239 As binary polynomials are represented as BIGNUMs, various members
1240 of the EC_GROUP and EC_POINT data structures can be shared
1241 between the implementations for prime fields and binary fields;
1242 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
1243 are essentially identical to their ..._GFp counterparts.
1244 (For simplicity, the '..._GFp' prefix has been dropped from
1245 various internal method names.)
1247 An internal 'field_div' method (similar to 'field_mul' and
1248 'field_sqr') has been added; this is used only for binary fields.
1250 [Sheueling Chang Shantz and Douglas Stebila
1251 (Sun Microsystems Laboratories)]
1253 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
1254 through methods ('mul', 'precompute_mult').
1256 The generic implementations (now internally called 'ec_wNAF_mul'
1257 and 'ec_wNAF_precomputed_mult') remain the default if these
1258 methods are undefined.
1260 [Sheueling Chang Shantz and Douglas Stebila
1261 (Sun Microsystems Laboratories)]
1263 *) New function EC_GROUP_get_degree, which is defined through
1264 EC_METHOD. For curves over prime fields, this returns the bit
1265 length of the modulus.
1267 [Sheueling Chang Shantz and Douglas Stebila
1268 (Sun Microsystems Laboratories)]
1270 *) New functions EC_GROUP_dup, EC_POINT_dup.
1271 (These simply call ..._new and ..._copy).
1273 [Sheueling Chang Shantz and Douglas Stebila
1274 (Sun Microsystems Laboratories)]
1276 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
1277 Polynomials are represented as BIGNUMs (where the sign bit is not
1278 used) in the following functions [macros]:
1281 BN_GF2m_sub [= BN_GF2m_add]
1282 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
1283 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
1284 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
1286 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
1287 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
1288 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
1289 BN_GF2m_cmp [= BN_ucmp]
1291 (Note that only the 'mod' functions are actually for fields GF(2^m).
1292 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
1294 For some functions, an the irreducible polynomial defining a
1295 field can be given as an 'unsigned int[]' with strictly
1296 decreasing elements giving the indices of those bits that are set;
1297 i.e., p[] represents the polynomial
1298 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
1300 p[0] > p[1] > ... > p[k] = 0.
1301 This applies to the following functions:
1306 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
1307 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
1309 BN_GF2m_mod_sqrt_arr
1310 BN_GF2m_mod_solve_quad_arr
1314 Conversion can be performed by the following functions:
1319 bntest.c has additional tests for binary polynomial arithmetic.
1321 Two implementations for BN_GF2m_mod_div() are available.
1322 The default algorithm simply uses BN_GF2m_mod_inv() and
1323 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
1324 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
1325 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
1327 [Sheueling Chang Shantz and Douglas Stebila
1328 (Sun Microsystems Laboratories)]
1330 *) Add new error code 'ERR_R_DISABLED' that can be used when some
1331 functionality is disabled at compile-time.
1332 [Douglas Stebila <douglas.stebila@sun.com>]
1334 *) Change default behaviour of 'openssl asn1parse' so that more
1335 information is visible when viewing, e.g., a certificate:
1337 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
1338 mode the content of non-printable OCTET STRINGs is output in a
1339 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
1340 avoid the appearance of a printable string.
1341 [Nils Larsch <nla@trustcenter.de>]
1343 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
1345 EC_GROUP_set_asn1_flag()
1346 EC_GROUP_get_asn1_flag()
1347 EC_GROUP_set_point_conversion_form()
1348 EC_GROUP_get_point_conversion_form()
1349 These control ASN1 encoding details:
1350 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
1351 has been set to OPENSSL_EC_NAMED_CURVE.
1352 - Points are encoded in uncompressed form by default; options for
1353 asn1_for are as for point2oct, namely
1354 POINT_CONVERSION_COMPRESSED
1355 POINT_CONVERSION_UNCOMPRESSED
1356 POINT_CONVERSION_HYBRID
1358 Also add 'seed' and 'seed_len' members to EC_GROUP with access
1361 EC_GROUP_get0_seed()
1362 EC_GROUP_get_seed_len()
1363 This is used only for ASN1 purposes (so far).
1364 [Nils Larsch <nla@trustcenter.de>]
1366 *) Add 'field_type' member to EC_METHOD, which holds the NID
1367 of the appropriate field type OID. The new function
1368 EC_METHOD_get_field_type() returns this value.
1369 [Nils Larsch <nla@trustcenter.de>]
1374 EC_POINT_point2hex()
1375 EC_POINT_hex2point()
1376 providing useful interfaces to EC_POINT_point2oct() and
1377 EC_POINT_oct2point().
1378 [Nils Larsch <nla@trustcenter.de>]
1380 *) Change internals of the EC library so that the functions
1381 EC_GROUP_set_generator()
1382 EC_GROUP_get_generator()
1383 EC_GROUP_get_order()
1384 EC_GROUP_get_cofactor()
1385 are implemented directly in crypto/ec/ec_lib.c and not dispatched
1386 to methods, which would lead to unnecessary code duplication when
1387 adding different types of curves.
1388 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
1390 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
1391 arithmetic, and such that modified wNAFs are generated
1392 (which avoid length expansion in many cases).
1395 *) Add a function EC_GROUP_check_discriminant() (defined via
1396 EC_METHOD) that verifies that the curve discriminant is non-zero.
1398 Add a function EC_GROUP_check() that makes some sanity tests
1399 on a EC_GROUP, its generator and order. This includes
1400 EC_GROUP_check_discriminant().
1401 [Nils Larsch <nla@trustcenter.de>]
1403 *) Add ECDSA in new directory crypto/ecdsa/.
1405 Add applications 'openssl ecparam' and 'openssl ecdsa'
1406 (these are based on 'openssl dsaparam' and 'openssl dsa').
1408 ECDSA support is also included in various other files across the
1409 library. Most notably,
1410 - 'openssl req' now has a '-newkey ecdsa:file' option;
1411 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
1412 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
1413 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
1414 them suitable for ECDSA where domain parameters must be
1415 extracted before the specific public key;
1416 - ECDSA engine support has been added.
1417 [Nils Larsch <nla@trustcenter.de>]
1419 *) Include some named elliptic curves, and add OIDs from X9.62,
1420 SECG, and WAP/WTLS. Each curve can be obtained from the new
1422 EC_GROUP_new_by_curve_name(),
1423 and the list of available named curves can be obtained with
1424 EC_get_builtin_curves().
1425 Also add a 'curve_name' member to EC_GROUP objects, which can be
1427 EC_GROUP_set_curve_name()
1428 EC_GROUP_get_curve_name()
1429 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
1431 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
1432 was actually never needed) and in BN_mul(). The removal in BN_mul()
1433 required a small change in bn_mul_part_recursive() and the addition
1434 of the functions bn_cmp_part_words(), bn_sub_part_words() and
1435 bn_add_part_words(), which do the same thing as bn_cmp_words(),
1436 bn_sub_words() and bn_add_words() except they take arrays with
1440 Changes between 0.9.7l and 0.9.7m [xx XXX xxxx]
1442 *) Have SSL/TLS server implementation tolerate "mismatched" record
1443 protocol version while receiving ClientHello even if the
1444 ClientHello is fragmented. (The server can't insist on the
1445 particular protocol version it has chosen before the ServerHello
1446 message has informed the client about his choice.)
1449 *) Load error codes if they are not already present instead of using a
1450 static variable. This allows them to be cleanly unloaded and reloaded.
1453 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
1455 *) Introduce limits to prevent malicious keys being able to
1456 cause a denial of service. (CVE-2006-2940)
1457 [Steve Henson, Bodo Moeller]
1459 *) Fix ASN.1 parsing of certain invalid structures that can result
1460 in a denial of service. (CVE-2006-2937) [Steve Henson]
1462 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1463 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1465 *) Fix SSL client code which could crash if connecting to a
1466 malicious SSLv2 server. (CVE-2006-4343)
1467 [Tavis Ormandy and Will Drewry, Google Security Team]
1469 *) Change ciphersuite string processing so that an explicit
1470 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
1471 will no longer include "AES128-SHA"), and any other similar
1472 ciphersuite (same bitmap) from *other* protocol versions (so that
1473 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
1474 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
1475 changes from 0.9.8b and 0.9.8d.
1478 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
1480 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1481 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1483 *) Change the Unix randomness entropy gathering to use poll() when
1484 possible instead of select(), since the latter has some
1485 undesirable limitations.
1486 [Darryl Miles via Richard Levitte and Bodo Moeller]
1488 *) Disable rogue ciphersuites:
1490 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1491 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1492 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1494 The latter two were purportedly from
1495 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1498 Also deactive the remaining ciphersuites from
1499 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1500 unofficial, and the ID has long expired.
1503 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1504 dual-core machines) and other potential thread-safety issues.
1507 Changes between 0.9.7i and 0.9.7j [04 May 2006]
1509 *) Adapt fipsld and the build system to link against the validated FIPS
1510 module in FIPS mode.
1513 *) Fixes for VC++ 2005 build under Windows.
1516 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
1517 from a Windows bash shell such as MSYS. It is autodetected from the
1518 "config" script when run from a VC++ environment. Modify standard VC++
1519 build to use fipscanister.o from the GNU make build.
1522 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
1524 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
1525 The value now differs depending on if you build for FIPS or not.
1526 BEWARE! A program linked with a shared FIPSed libcrypto can't be
1527 safely run with a non-FIPSed libcrypto, as it may crash because of
1528 the difference induced by this change.
1531 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
1533 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1534 (part of SSL_OP_ALL). This option used to disable the
1535 countermeasure against man-in-the-middle protocol-version
1536 rollback in the SSL 2.0 server implementation, which is a bad
1537 idea. (CVE-2005-2969)
1539 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1540 for Information Security, National Institute of Advanced Industrial
1541 Science and Technology [AIST], Japan)]
1543 *) Minimal support for X9.31 signatures and PSS padding modes. This is
1544 mainly for FIPS compliance and not fully integrated at this stage.
1547 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
1548 the exponentiation using a fixed-length exponent. (Otherwise,
1549 the information leaked through timing could expose the secret key
1550 after many signatures; cf. Bleichenbacher's attack on DSA with
1554 *) Make a new fixed-window mod_exp implementation the default for
1555 RSA, DSA, and DH private-key operations so that the sequence of
1556 squares and multiplies and the memory access pattern are
1557 independent of the particular secret key. This will mitigate
1558 cache-timing and potential related attacks.
1560 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
1561 and this is automatically used by BN_mod_exp_mont() if the new flag
1562 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
1563 will use this BN flag for private exponents unless the flag
1564 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
1565 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
1567 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
1569 *) Change the client implementation for SSLv23_method() and
1570 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
1571 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
1572 (Previously, the SSL 2.0 backwards compatible Client Hello
1573 message format would be used even with SSL_OP_NO_SSLv2.)
1576 *) Add support for smime-type MIME parameter in S/MIME messages which some
1580 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
1581 a threadsafe manner. Modify rsa code to use new function and add calls
1582 to dsa and dh code (which had race conditions before).
1585 *) Include the fixed error library code in the C error file definitions
1586 instead of fixing them up at runtime. This keeps the error code
1587 structures constant.
1590 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
1592 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
1595 *) Fixes for newer kerberos headers. NB: the casts are needed because
1596 the 'length' field is signed on one version and unsigned on another
1597 with no (?) obvious way to tell the difference, without these VC++
1598 complains. Also the "definition" of FAR (blank) is no longer included
1599 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
1600 some needed definitions.
1603 *) Undo Cygwin change.
1606 *) Added support for proxy certificates according to RFC 3820.
1607 Because they may be a security thread to unaware applications,
1608 they must be explicitely allowed in run-time. See
1609 docs/HOWTO/proxy_certificates.txt for further information.
1612 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
1614 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
1615 server and client random values. Previously
1616 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
1617 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
1619 This change has negligible security impact because:
1621 1. Server and client random values still have 24 bytes of pseudo random
1624 2. Server and client random values are sent in the clear in the initial
1627 3. The master secret is derived using the premaster secret (48 bytes in
1628 size for static RSA ciphersuites) as well as client server and random
1631 The OpenSSL team would like to thank the UK NISCC for bringing this issue
1634 [Stephen Henson, reported by UK NISCC]
1636 *) Use Windows randomness collection on Cygwin.
1639 *) Fix hang in EGD/PRNGD query when communication socket is closed
1640 prematurely by EGD/PRNGD.
1641 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
1643 *) Prompt for pass phrases when appropriate for PKCS12 input format.
1646 *) Back-port of selected performance improvements from development
1647 branch, as well as improved support for PowerPC platforms.
1650 *) Add lots of checks for memory allocation failure, error codes to indicate
1651 failure and freeing up memory if a failure occurs.
1652 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
1654 *) Add new -passin argument to dgst.
1657 *) Perform some character comparisons of different types in X509_NAME_cmp:
1658 this is needed for some certificates that reencode DNs into UTF8Strings
1659 (in violation of RFC3280) and can't or wont issue name rollover
1663 *) Make an explicit check during certificate validation to see that
1664 the CA setting in each certificate on the chain is correct. As a
1665 side effect always do the following basic checks on extensions,
1666 not just when there's an associated purpose to the check:
1668 - if there is an unhandled critical extension (unless the user
1669 has chosen to ignore this fault)
1670 - if the path length has been exceeded (if one is set at all)
1671 - that certain extensions fit the associated purpose (if one has
1675 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
1677 *) Avoid a race condition when CRLs are checked in a multi threaded
1678 environment. This would happen due to the reordering of the revoked
1679 entries during signature checking and serial number lookup. Now the
1680 encoding is cached and the serial number sort performed under a lock.
1681 Add new STACK function sk_is_sorted().
1684 *) Add Delta CRL to the extension code.
1687 *) Various fixes to s3_pkt.c so alerts are sent properly.
1688 [David Holmes <d.holmes@f5.com>]
1690 *) Reduce the chances of duplicate issuer name and serial numbers (in
1691 violation of RFC3280) using the OpenSSL certificate creation utilities.
1692 This is done by creating a random 64 bit value for the initial serial
1693 number when a serial number file is created or when a self signed
1694 certificate is created using 'openssl req -x509'. The initial serial
1695 number file is created using 'openssl x509 -next_serial' in CA.pl
1696 rather than being initialized to 1.
1699 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
1701 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
1702 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
1703 [Joe Orton, Steve Henson]
1705 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
1707 [Joe Orton, Steve Henson]
1709 *) Make it possible to have multiple active certificates with the same
1710 subject in the CA index file. This is done only if the keyword
1711 'unique_subject' is set to 'no' in the main CA section (default
1712 if 'CA_default') of the configuration file. The value is saved
1713 with the database itself in a separate index attribute file,
1714 named like the index file with '.attr' appended to the name.
1717 *) X509 verify fixes. Disable broken certificate workarounds when
1718 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
1719 keyUsage extension present. Don't accept CRLs with unhandled critical
1720 extensions: since verify currently doesn't process CRL extensions this
1721 rejects a CRL with *any* critical extensions. Add new verify error codes
1725 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
1726 A clarification of RFC2560 will require the use of OCTET STRINGs and
1727 some implementations cannot handle the current raw format. Since OpenSSL
1728 copies and compares OCSP nonces as opaque blobs without any attempt at
1729 parsing them this should not create any compatibility issues.
1732 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
1733 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
1734 this HMAC (and other) operations are several times slower than OpenSSL
1738 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
1739 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1741 *) Use the correct content when signing type "other".
1744 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
1746 *) Fix various bugs revealed by running the NISCC test suite:
1748 Stop out of bounds reads in the ASN1 code when presented with
1749 invalid tags (CVE-2003-0543 and CVE-2003-0544).
1751 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
1753 If verify callback ignores invalid public key errors don't try to check
1754 certificate signature with the NULL public key.
1758 *) New -ignore_err option in ocsp application to stop the server
1759 exiting on the first error in a request.
1762 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
1763 if the server requested one: as stated in TLS 1.0 and SSL 3.0
1767 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
1768 extra data after the compression methods not only for TLS 1.0
1769 but also for SSL 3.0 (as required by the specification).
1770 [Bodo Moeller; problem pointed out by Matthias Loepfe]
1772 *) Change X509_certificate_type() to mark the key as exported/exportable
1773 when it's 512 *bits* long, not 512 bytes.
1776 *) Change AES_cbc_encrypt() so it outputs exact multiple of
1777 blocks during encryption.
1780 *) Various fixes to base64 BIO and non blocking I/O. On write
1781 flushes were not handled properly if the BIO retried. On read
1782 data was not being buffered properly and had various logic bugs.
1783 This also affects blocking I/O when the data being decoded is a
1787 *) Various S/MIME bugfixes and compatibility changes:
1788 output correct application/pkcs7 MIME type if
1789 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
1790 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
1791 of files as .eml work). Correctly handle very long lines in MIME
1795 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
1797 *) Countermeasure against the Klima-Pokorny-Rosa extension of
1798 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
1799 a protocol version number mismatch like a decryption error
1800 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
1803 *) Turn on RSA blinding by default in the default implementation
1804 to avoid a timing attack. Applications that don't want it can call
1805 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
1806 They would be ill-advised to do so in most cases.
1807 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
1809 *) Change RSA blinding code so that it works when the PRNG is not
1810 seeded (in this case, the secret RSA exponent is abused as
1811 an unpredictable seed -- if it is not unpredictable, there
1812 is no point in blinding anyway). Make RSA blinding thread-safe
1813 by remembering the creator's thread ID in rsa->blinding and
1814 having all other threads use local one-time blinding factors
1815 (this requires more computation than sharing rsa->blinding, but
1816 avoids excessive locking; and if an RSA object is not shared
1817 between threads, blinding will still be very fast).
1820 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
1821 ENGINE as defaults for all supported algorithms irrespective of
1822 the 'flags' parameter. 'flags' is now honoured, so applications
1823 should make sure they are passing it correctly.
1826 *) Target "mingw" now allows native Windows code to be generated in
1827 the Cygwin environment as well as with the MinGW compiler.
1830 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
1832 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
1833 via timing by performing a MAC computation even if incorrrect
1834 block cipher padding has been found. This is a countermeasure
1835 against active attacks where the attacker has to distinguish
1836 between bad padding and a MAC verification error. (CVE-2003-0078)
1838 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
1839 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
1840 Martin Vuagnoux (EPFL, Ilion)]
1842 *) Make the no-err option work as intended. The intention with no-err
1843 is not to have the whole error stack handling routines removed from
1844 libcrypto, it's only intended to remove all the function name and
1845 reason texts, thereby removing some of the footprint that may not
1846 be interesting if those errors aren't displayed anyway.
1848 NOTE: it's still possible for any application or module to have it's
1849 own set of error texts inserted. The routines are there, just not
1850 used by default when no-err is given.
1853 *) Add support for FreeBSD on IA64.
1854 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
1856 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
1857 Kerberos function mit_des_cbc_cksum(). Before this change,
1858 the value returned by DES_cbc_cksum() was like the one from
1859 mit_des_cbc_cksum(), except the bytes were swapped.
1860 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
1862 *) Allow an application to disable the automatic SSL chain building.
1863 Before this a rather primitive chain build was always performed in
1864 ssl3_output_cert_chain(): an application had no way to send the
1865 correct chain if the automatic operation produced an incorrect result.
1867 Now the chain builder is disabled if either:
1869 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
1871 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
1873 The reasoning behind this is that an application would not want the
1874 auto chain building to take place if extra chain certificates are
1875 present and it might also want a means of sending no additional
1876 certificates (for example the chain has two certificates and the
1880 *) Add the possibility to build without the ENGINE framework.
1881 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1883 *) Under Win32 gmtime() can return NULL: check return value in
1884 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
1887 *) DSA routines: under certain error conditions uninitialized BN objects
1888 could be freed. Solution: make sure initialization is performed early
1889 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
1890 Nils Larsch <nla@trustcenter.de> via PR#459)
1893 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
1894 checked on reconnect on the client side, therefore session resumption
1895 could still fail with a "ssl session id is different" error. This
1896 behaviour is masked when SSL_OP_ALL is used due to
1897 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
1898 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1899 followup to PR #377.
1902 *) IA-32 assembler support enhancements: unified ELF targets, support
1903 for SCO/Caldera platforms, fix for Cygwin shared build.
1906 *) Add support for FreeBSD on sparc64. As a consequence, support for
1907 FreeBSD on non-x86 processors is separate from x86 processors on
1908 the config script, much like the NetBSD support.
1909 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
1911 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
1913 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
1916 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
1917 code (06) was taken as the first octet of the session ID and the last
1918 octet was ignored consequently. As a result SSLv2 client side session
1919 caching could not have worked due to the session ID mismatch between
1921 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1925 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
1926 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
1930 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
1931 seems that in spite of existing for more than a year, many application
1932 author have done nothing to provide the necessary callbacks, which
1933 means that this particular engine will not work properly anywhere.
1934 This is a very unfortunate situation which forces us, in the name
1935 of usability, to give the hw_ncipher.c a static lock, which is part
1937 NOTE: This is for the 0.9.7 series ONLY. This hack will never
1938 appear in 0.9.8 or later. We EXPECT application authors to have
1939 dealt properly with this when 0.9.8 is released (unless we actually
1940 make such changes in the libcrypto locking code that changes will
1941 have to be made anyway).
1944 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
1945 octets have been read, EOF or an error occurs. Without this change
1946 some truncated ASN1 structures will not produce an error.
1949 *) Disable Heimdal support, since it hasn't been fully implemented.
1950 Still give the possibility to force the use of Heimdal, but with
1951 warnings and a request that patches get sent to openssl-dev.
1954 *) Add the VC-CE target, introduce the WINCE sysname, and add
1955 INSTALL.WCE and appropriate conditionals to make it build.
1956 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1958 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
1959 cygssl-x.y.z.dll, where x, y and z are the major, minor and
1960 edit numbers of the version.
1961 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
1963 *) Introduce safe string copy and catenation functions
1964 (BUF_strlcpy() and BUF_strlcat()).
1965 [Ben Laurie (CHATS) and Richard Levitte]
1967 *) Avoid using fixed-size buffers for one-line DNs.
1968 [Ben Laurie (CHATS)]
1970 *) Add BUF_MEM_grow_clean() to avoid information leakage when
1971 resizing buffers containing secrets, and use where appropriate.
1972 [Ben Laurie (CHATS)]
1974 *) Avoid using fixed size buffers for configuration file location.
1975 [Ben Laurie (CHATS)]
1977 *) Avoid filename truncation for various CA files.
1978 [Ben Laurie (CHATS)]
1980 *) Use sizeof in preference to magic numbers.
1981 [Ben Laurie (CHATS)]
1983 *) Avoid filename truncation in cert requests.
1984 [Ben Laurie (CHATS)]
1986 *) Add assertions to check for (supposedly impossible) buffer
1988 [Ben Laurie (CHATS)]
1990 *) Don't cache truncated DNS entries in the local cache (this could
1991 potentially lead to a spoofing attack).
1992 [Ben Laurie (CHATS)]
1994 *) Fix various buffers to be large enough for hex/decimal
1995 representations in a platform independent manner.
1996 [Ben Laurie (CHATS)]
1998 *) Add CRYPTO_realloc_clean() to avoid information leakage when
1999 resizing buffers containing secrets, and use where appropriate.
2000 [Ben Laurie (CHATS)]
2002 *) Add BIO_indent() to avoid much slightly worrying code to do
2004 [Ben Laurie (CHATS)]
2006 *) Convert sprintf()/BIO_puts() to BIO_printf().
2007 [Ben Laurie (CHATS)]
2009 *) buffer_gets() could terminate with the buffer only half
2011 [Ben Laurie (CHATS)]
2013 *) Add assertions to prevent user-supplied crypto functions from
2014 overflowing internal buffers by having large block sizes, etc.
2015 [Ben Laurie (CHATS)]
2017 *) New OPENSSL_assert() macro (similar to assert(), but enabled
2019 [Ben Laurie (CHATS)]
2021 *) Eliminate unused copy of key in RC4.
2022 [Ben Laurie (CHATS)]
2024 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
2025 [Ben Laurie (CHATS)]
2027 *) Fix off-by-one error in EGD path.
2028 [Ben Laurie (CHATS)]
2030 *) If RANDFILE path is too long, ignore instead of truncating.
2031 [Ben Laurie (CHATS)]
2033 *) Eliminate unused and incorrectly sized X.509 structure
2035 [Ben Laurie (CHATS)]
2037 *) Eliminate unused and dangerous function knumber().
2038 [Ben Laurie (CHATS)]
2040 *) Eliminate unused and dangerous structure, KSSL_ERR.
2041 [Ben Laurie (CHATS)]
2043 *) Protect against overlong session ID context length in an encoded
2044 session object. Since these are local, this does not appear to be
2046 [Ben Laurie (CHATS)]
2048 *) Change from security patch (see 0.9.6e below) that did not affect
2049 the 0.9.6 release series:
2051 Remote buffer overflow in SSL3 protocol - an attacker could
2052 supply an oversized master key in Kerberos-enabled versions.
2054 [Ben Laurie (CHATS)]
2056 *) Change the SSL kerb5 codes to match RFC 2712.
2059 *) Make -nameopt work fully for req and add -reqopt switch.
2060 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
2062 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
2063 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
2065 *) Make sure tests can be performed even if the corresponding algorithms
2066 have been removed entirely. This was also the last step to make
2067 OpenSSL compilable with DJGPP under all reasonable conditions.
2068 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
2070 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
2071 to allow version independent disabling of normally unselected ciphers,
2072 which may be activated as a side-effect of selecting a single cipher.
2074 (E.g., cipher list string "RSA" enables ciphersuites that are left
2075 out of "ALL" because they do not provide symmetric encryption.
2076 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
2077 [Lutz Jaenicke, Bodo Moeller]
2079 *) Add appropriate support for separate platform-dependent build
2080 directories. The recommended way to make a platform-dependent
2081 build directory is the following (tested on Linux), maybe with
2084 # Place yourself outside of the OpenSSL source tree. In
2085 # this example, the environment variable OPENSSL_SOURCE
2086 # is assumed to contain the absolute OpenSSL source directory.
2087 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
2088 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
2089 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
2090 mkdir -p `dirname $F`
2091 ln -s $OPENSSL_SOURCE/$F $F
2094 To be absolutely sure not to disturb the source tree, a "make clean"
2095 is a good thing. If it isn't successfull, don't worry about it,
2096 it probably means the source directory is very clean.
2099 *) Make sure any ENGINE control commands make local copies of string
2100 pointers passed to them whenever necessary. Otherwise it is possible
2101 the caller may have overwritten (or deallocated) the original string
2102 data when a later ENGINE operation tries to use the stored values.
2103 [Götz Babin-Ebell <babinebell@trustcenter.de>]
2105 *) Improve diagnostics in file reading and command-line digests.
2106 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
2108 *) Add AES modes CFB and OFB to the object database. Correct an
2109 error in AES-CFB decryption.
2112 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
2113 allows existing EVP_CIPHER_CTX structures to be reused after
2114 calling EVP_*Final(). This behaviour is used by encryption
2115 BIOs and some applications. This has the side effect that
2116 applications must explicitly clean up cipher contexts with
2117 EVP_CIPHER_CTX_cleanup() or they will leak memory.
2120 *) Check the values of dna and dnb in bn_mul_recursive before calling
2121 bn_mul_comba (a non zero value means the a or b arrays do not contain
2122 n2 elements) and fallback to bn_mul_normal if either is not zero.
2125 *) Fix escaping of non-ASCII characters when using the -subj option
2126 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
2129 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
2130 form for "surname", serialNumber has no short form.
2131 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
2132 therefore remove "mail" short name for "internet 7".
2133 The OID for unique identifiers in X509 certificates is
2134 x500UniqueIdentifier, not uniqueIdentifier.
2135 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
2138 *) Add an "init" command to the ENGINE config module and auto initialize
2139 ENGINEs. Without any "init" command the ENGINE will be initialized
2140 after all ctrl commands have been executed on it. If init=1 the
2141 ENGINE is initailized at that point (ctrls before that point are run
2142 on the uninitialized ENGINE and after on the initialized one). If
2143 init=0 then the ENGINE will not be iniatialized at all.
2146 *) Fix the 'app_verify_callback' interface so that the user-defined
2147 argument is actually passed to the callback: In the
2148 SSL_CTX_set_cert_verify_callback() prototype, the callback
2149 declaration has been changed from
2152 int (*cb)(X509_STORE_CTX *,void *);
2153 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
2154 i=s->ctx->app_verify_callback(&ctx)
2155 has been changed into
2156 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
2158 To update applications using SSL_CTX_set_cert_verify_callback(),
2159 a dummy argument can be added to their callback functions.
2160 [D. K. Smetters <smetters@parc.xerox.com>]
2162 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
2163 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
2165 *) Add and OPENSSL_LOAD_CONF define which will cause
2166 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
2167 This allows older applications to transparently support certain
2168 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
2169 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
2170 load the config file and OPENSSL_add_all_algorithms_conf() which will
2171 always load it have also been added.
2174 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
2175 Adjust NIDs and EVP layer.
2176 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2178 *) Config modules support in openssl utility.
2180 Most commands now load modules from the config file,
2181 though in a few (such as version) this isn't done
2182 because it couldn't be used for anything.
2184 In the case of ca and req the config file used is
2185 the same as the utility itself: that is the -config
2186 command line option can be used to specify an
2190 *) Move default behaviour from OPENSSL_config(). If appname is NULL
2191 use "openssl_conf" if filename is NULL use default openssl config file.
2194 *) Add an argument to OPENSSL_config() to allow the use of an alternative
2195 config section name. Add a new flag to tolerate a missing config file
2196 and move code to CONF_modules_load_file().
2199 *) Support for crypto accelerator cards from Accelerated Encryption
2200 Processing, www.aep.ie. (Use engine 'aep')
2201 The support was copied from 0.9.6c [engine] and adapted/corrected
2202 to work with the new engine framework.
2203 [AEP Inc. and Richard Levitte]
2205 *) Support for SureWare crypto accelerator cards from Baltimore
2206 Technologies. (Use engine 'sureware')
2207 The support was copied from 0.9.6c [engine] and adapted
2208 to work with the new engine framework.
2211 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
2212 make the newer ENGINE framework commands for the CHIL engine work.
2213 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
2215 *) Make it possible to produce shared libraries on ReliantUNIX.
2216 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
2218 *) Add the configuration target debug-linux-ppro.
2219 Make 'openssl rsa' use the general key loading routines
2220 implemented in apps.c, and make those routines able to
2221 handle the key format FORMAT_NETSCAPE and the variant
2223 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2225 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
2226 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2228 *) Add -keyform to rsautl, and document -engine.
2229 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
2231 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
2232 BIO_R_NO_SUCH_FILE error code rather than the generic
2233 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
2236 *) Add new functions
2238 ERR_peek_last_error_line
2239 ERR_peek_last_error_line_data.
2240 These are similar to
2243 ERR_peek_error_line_data,
2244 but report on the latest error recorded rather than the first one
2245 still in the error queue.
2246 [Ben Laurie, Bodo Moeller]
2248 *) default_algorithms option in ENGINE config module. This allows things
2250 default_algorithms = ALL
2251 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
2254 *) Prelminary ENGINE config module.
2257 *) New experimental application configuration code.
2260 *) Change the AES code to follow the same name structure as all other
2261 symmetric ciphers, and behave the same way. Move everything to
2262 the directory crypto/aes, thereby obsoleting crypto/rijndael.
2263 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2265 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
2266 [Ben Laurie and Theo de Raadt]
2268 *) Add option to output public keys in req command.
2269 [Massimiliano Pala madwolf@openca.org]
2271 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
2272 (up to about 10% better than before for P-192 and P-224).
2275 *) New functions/macros
2277 SSL_CTX_set_msg_callback(ctx, cb)
2278 SSL_CTX_set_msg_callback_arg(ctx, arg)
2279 SSL_set_msg_callback(ssl, cb)
2280 SSL_set_msg_callback_arg(ssl, arg)
2282 to request calling a callback function
2284 void cb(int write_p, int version, int content_type,
2285 const void *buf, size_t len, SSL *ssl, void *arg)
2287 whenever a protocol message has been completely received
2288 (write_p == 0) or sent (write_p == 1). Here 'version' is the
2289 protocol version according to which the SSL library interprets
2290 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
2291 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
2292 the content type as defined in the SSL 3.0/TLS 1.0 protocol
2293 specification (change_cipher_spec(20), alert(21), handshake(22)).
2294 'buf' and 'len' point to the actual message, 'ssl' to the
2295 SSL object, and 'arg' is the application-defined value set by
2296 SSL[_CTX]_set_msg_callback_arg().
2298 'openssl s_client' and 'openssl s_server' have new '-msg' options
2299 to enable a callback that displays all protocol messages.
2302 *) Change the shared library support so shared libraries are built as
2303 soon as the corresponding static library is finished, and thereby get
2304 openssl and the test programs linked against the shared library.
2305 This still only happens when the keyword "shard" has been given to
2306 the configuration scripts.
2308 NOTE: shared library support is still an experimental thing, and
2309 backward binary compatibility is still not guaranteed.
2310 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
2312 *) Add support for Subject Information Access extension.
2313 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2315 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
2316 additional bytes when new memory had to be allocated, not just
2317 when reusing an existing buffer.
2320 *) New command line and configuration option 'utf8' for the req command.
2321 This allows field values to be specified as UTF8 strings.
2324 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
2325 runs for the former and machine-readable output for the latter.
2328 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
2329 of the e-mail address in the DN (i.e., it will go into a certificate
2330 extension only). The new configuration file option 'email_in_dn = no'
2331 has the same effect.
2332 [Massimiliano Pala madwolf@openca.org]
2334 *) Change all functions with names starting with des_ to be starting
2335 with DES_ instead. Add wrappers that are compatible with libdes,
2336 but are named _ossl_old_des_*. Finally, add macros that map the
2337 des_* symbols to the corresponding _ossl_old_des_* if libdes
2338 compatibility is desired. If OpenSSL 0.9.6c compatibility is
2339 desired, the des_* symbols will be mapped to DES_*, with one
2342 Since we provide two compatibility mappings, the user needs to
2343 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
2344 compatibility is desired. The default (i.e., when that macro
2345 isn't defined) is OpenSSL 0.9.6c compatibility.
2347 There are also macros that enable and disable the support of old
2348 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
2349 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
2350 are defined, the default will apply: to support the old des routines.
2352 In either case, one must include openssl/des.h to get the correct
2353 definitions. Do not try to just include openssl/des_old.h, that
2356 NOTE: This is a major break of an old API into a new one. Software
2357 authors are encouraged to switch to the DES_ style functions. Some
2358 time in the future, des_old.h and the libdes compatibility functions
2359 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
2360 default), and then completely removed.
2363 *) Test for certificates which contain unsupported critical extensions.
2364 If such a certificate is found during a verify operation it is
2365 rejected by default: this behaviour can be overridden by either
2366 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
2367 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
2368 X509_supported_extension() has also been added which returns 1 if a
2369 particular extension is supported.
2372 *) Modify the behaviour of EVP cipher functions in similar way to digests
2373 to retain compatibility with existing code.
2376 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
2377 compatibility with existing code. In particular the 'ctx' parameter does
2378 not have to be to be initialized before the call to EVP_DigestInit() and
2379 it is tidied up after a call to EVP_DigestFinal(). New function
2380 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
2381 EVP_MD_CTX_copy() changed to not require the destination to be
2382 initialized valid and new function EVP_MD_CTX_copy_ex() added which
2383 requires the destination to be valid.
2385 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
2386 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
2389 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
2390 so that complete 'Handshake' protocol structures are kept in memory
2391 instead of overwriting 'msg_type' and 'length' with 'body' data.
2394 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
2395 [Massimo Santin via Richard Levitte]
2397 *) Major restructuring to the underlying ENGINE code. This includes
2398 reduction of linker bloat, separation of pure "ENGINE" manipulation
2399 (initialisation, etc) from functionality dealing with implementations
2400 of specific crypto iterfaces. This change also introduces integrated
2401 support for symmetric ciphers and digest implementations - so ENGINEs
2402 can now accelerate these by providing EVP_CIPHER and EVP_MD
2403 implementations of their own. This is detailed in crypto/engine/README
2404 as it couldn't be adequately described here. However, there are a few
2405 API changes worth noting - some RSA, DSA, DH, and RAND functions that
2406 were changed in the original introduction of ENGINE code have now
2407 reverted back - the hooking from this code to ENGINE is now a good
2408 deal more passive and at run-time, operations deal directly with
2409 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
2410 dereferencing through an ENGINE pointer any more. Also, the ENGINE
2411 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
2412 they were not being used by the framework as there is no concept of a
2413 BIGNUM_METHOD and they could not be generalised to the new
2414 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
2415 ENGINE_cpy() has been removed as it cannot be consistently defined in
2419 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
2422 *) Change mkdef.pl to sort symbols that get the same entry number,
2423 and make sure the automatically generated functions ERR_load_*
2424 become part of libeay.num as well.
2427 *) New function SSL_renegotiate_pending(). This returns true once
2428 renegotiation has been requested (either SSL_renegotiate() call
2429 or HelloRequest/ClientHello receveived from the peer) and becomes
2430 false once a handshake has been completed.
2431 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
2432 sends a HelloRequest, but does not ensure that a handshake takes
2433 place. SSL_renegotiate_pending() is useful for checking if the
2434 client has followed the request.)
2437 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
2438 By default, clients may request session resumption even during
2439 renegotiation (if session ID contexts permit); with this option,
2440 session resumption is possible only in the first handshake.
2442 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
2443 more bits available for options that should not be part of
2444 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
2447 *) Add some demos for certificate and certificate request creation.
2450 *) Make maximum certificate chain size accepted from the peer application
2451 settable (SSL*_get/set_max_cert_list()), as proposed by
2452 "Douglas E. Engert" <deengert@anl.gov>.
2455 *) Add support for shared libraries for Unixware-7
2456 (Boyd Lynn Gerber <gerberb@zenez.com>).
2459 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
2460 be done prior to destruction. Use this to unload error strings from
2461 ENGINEs that load their own error strings. NB: This adds two new API
2462 functions to "get" and "set" this destroy handler in an ENGINE.
2465 *) Alter all existing ENGINE implementations (except "openssl" and
2466 "openbsd") to dynamically instantiate their own error strings. This
2467 makes them more flexible to be built both as statically-linked ENGINEs
2468 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
2469 Also, add stub code to each that makes building them as self-contained
2470 shared-libraries easier (see README.ENGINE).
2473 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
2474 implementations into applications that are completely implemented in
2475 self-contained shared-libraries. The "dynamic" ENGINE exposes control
2476 commands that can be used to configure what shared-library to load and
2477 to control aspects of the way it is handled. Also, made an update to
2478 the README.ENGINE file that brings its information up-to-date and
2479 provides some information and instructions on the "dynamic" ENGINE
2480 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
2483 *) Make it possible to unload ranges of ERR strings with a new
2484 "ERR_unload_strings" function.
2487 *) Add a copy() function to EVP_MD.
2490 *) Make EVP_MD routines take a context pointer instead of just the
2491 md_data void pointer.
2494 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
2495 that the digest can only process a single chunk of data
2496 (typically because it is provided by a piece of
2497 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
2498 is only going to provide a single chunk of data, and hence the
2499 framework needn't accumulate the data for oneshot drivers.
2502 *) As with "ERR", make it possible to replace the underlying "ex_data"
2503 functions. This change also alters the storage and management of global
2504 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
2505 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
2506 index counters. The API functions that use this state have been changed
2507 to take a "class_index" rather than pointers to the class's local STACK
2508 and counter, and there is now an API function to dynamically create new
2509 classes. This centralisation allows us to (a) plug a lot of the
2510 thread-safety problems that existed, and (b) makes it possible to clean
2511 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
2512 such data would previously have always leaked in application code and
2513 workarounds were in place to make the memory debugging turn a blind eye
2514 to it. Application code that doesn't use this new function will still
2515 leak as before, but their memory debugging output will announce it now
2516 rather than letting it slide.
2518 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
2519 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
2520 has a return value to indicate success or failure.
2523 *) Make it possible to replace the underlying "ERR" functions such that the
2524 global state (2 LHASH tables and 2 locks) is only used by the "default"
2525 implementation. This change also adds two functions to "get" and "set"
2526 the implementation prior to it being automatically set the first time
2527 any other ERR function takes place. Ie. an application can call "get",
2528 pass the return value to a module it has just loaded, and that module
2529 can call its own "set" function using that value. This means the
2530 module's "ERR" operations will use (and modify) the error state in the
2531 application and not in its own statically linked copy of OpenSSL code.
2534 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
2535 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
2536 the operation, and provides a more encapsulated way for external code
2537 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
2538 to use these functions rather than manually incrementing the counts.
2540 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
2543 *) Add EVP test program.
2546 *) Add symmetric cipher support to ENGINE. Expect the API to change!
2549 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
2550 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
2551 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
2552 These allow a CRL to be built without having to access X509_CRL fields
2553 directly. Modify 'ca' application to use new functions.
2556 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
2557 bug workarounds. Rollback attack detection is a security feature.
2558 The problem will only arise on OpenSSL servers when TLSv1 is not
2559 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
2560 Software authors not wanting to support TLSv1 will have special reasons
2561 for their choice and can explicitly enable this option.
2562 [Bodo Moeller, Lutz Jaenicke]
2564 *) Rationalise EVP so it can be extended: don't include a union of
2565 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
2566 (similar to those existing for EVP_CIPHER_CTX).
2571 EVP_MD_CTX_init(&md); /* new function call */
2572 EVP_DigestInit(&md, EVP_sha1());
2573 EVP_DigestUpdate(&md, in, len);
2574 EVP_DigestFinal(&md, out, NULL);
2575 EVP_MD_CTX_cleanup(&md); /* new function call */
2579 *) Make DES key schedule conform to the usual scheme, as well as
2580 correcting its structure. This means that calls to DES functions
2581 now have to pass a pointer to a des_key_schedule instead of a
2582 plain des_key_schedule (which was actually always a pointer
2585 des_key_schedule ks;
2587 des_set_key_checked(..., &ks);
2588 des_ncbc_encrypt(..., &ks, ...);
2590 (Note that a later change renames 'des_...' into 'DES_...'.)
2593 *) Initial reduction of linker bloat: the use of some functions, such as
2594 PEM causes large amounts of unused functions to be linked in due to
2595 poor organisation. For example pem_all.c contains every PEM function
2596 which has a knock on effect of linking in large amounts of (unused)
2597 ASN1 code. Grouping together similar functions and splitting unrelated
2598 functions prevents this.
2601 *) Cleanup of EVP macros.
2604 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
2605 correct _ecb suffix.
2608 *) Add initial OCSP responder support to ocsp application. The
2609 revocation information is handled using the text based index
2610 use by the ca application. The responder can either handle
2611 requests generated internally, supplied in files (for example
2612 via a CGI script) or using an internal minimal server.
2615 *) Add configuration choices to get zlib compression for TLS.
2618 *) Changes to Kerberos SSL for RFC 2712 compliance:
2619 1. Implemented real KerberosWrapper, instead of just using
2620 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
2621 2. Implemented optional authenticator field of KerberosWrapper.
2623 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
2624 and authenticator structs; see crypto/krb5/.
2626 Generalized Kerberos calls to support multiple Kerberos libraries.
2627 [Vern Staats <staatsvr@asc.hpc.mil>,
2628 Jeffrey Altman <jaltman@columbia.edu>
2629 via Richard Levitte]
2631 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
2632 already does with RSA. testdsa.h now has 'priv_key/pub_key'
2633 values for each of the key sizes rather than having just
2634 parameters (and 'speed' generating keys each time).
2637 *) Speed up EVP routines.
2640 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
2641 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
2642 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
2643 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
2645 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
2646 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
2647 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
2650 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
2652 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
2655 *) Added the OS2-EMX target.
2656 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
2658 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
2659 to support NCONF routines in extension code. New function CONF_set_nconf()
2660 to allow functions which take an NCONF to also handle the old LHASH
2661 structure: this means that the old CONF compatible routines can be
2662 retained (in particular wrt extensions) without having to duplicate the
2663 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
2666 *) Enhance the general user interface with mechanisms for inner control
2667 and with possibilities to have yes/no kind of prompts.
2670 *) Change all calls to low level digest routines in the library and
2671 applications to use EVP. Add missing calls to HMAC_cleanup() and
2672 don't assume HMAC_CTX can be copied using memcpy().
2673 [Verdon Walker <VWalker@novell.com>, Steve Henson]
2675 *) Add the possibility to control engines through control names but with
2676 arbitrary arguments instead of just a string.
2677 Change the key loaders to take a UI_METHOD instead of a callback
2678 function pointer. NOTE: this breaks binary compatibility with earlier
2679 versions of OpenSSL [engine].
2680 Adapt the nCipher code for these new conditions and add a card insertion
2684 *) Enhance the general user interface with mechanisms to better support
2685 dialog box interfaces, application-defined prompts, the possibility
2686 to use defaults (for example default passwords from somewhere else)
2687 and interrupts/cancellations.
2690 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
2691 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
2694 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
2695 tidy up some unnecessarily weird code in 'sk_new()').
2696 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
2698 *) Change the key loading routines for ENGINEs to use the same kind
2699 callback (pem_password_cb) as all other routines that need this
2703 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
2704 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
2705 than this minimum value is recommended.
2708 *) New random seeder for OpenVMS, using the system process statistics
2709 that are easily reachable.
2712 *) Windows apparently can't transparently handle global
2713 variables defined in DLLs. Initialisations such as:
2715 const ASN1_ITEM *it = &ASN1_INTEGER_it;
2717 wont compile. This is used by the any applications that need to
2718 declare their own ASN1 modules. This was fixed by adding the option
2719 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
2720 needed for static libraries under Win32.
2723 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
2724 setting of purpose and trust fields. New X509_STORE trust and
2725 purpose functions and tidy up setting in other SSL functions.
2728 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
2729 structure. These are inherited by X509_STORE_CTX when it is
2730 initialised. This allows various defaults to be set in the
2731 X509_STORE structure (such as flags for CRL checking and custom
2732 purpose or trust settings) for functions which only use X509_STORE_CTX
2733 internally such as S/MIME.
2735 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
2736 trust settings if they are not set in X509_STORE. This allows X509_STORE
2737 purposes and trust (in S/MIME for example) to override any set by default.
2739 Add command line options for CRL checking to smime, s_client and s_server
2743 *) Initial CRL based revocation checking. If the CRL checking flag(s)
2744 are set then the CRL is looked up in the X509_STORE structure and
2745 its validity and signature checked, then if the certificate is found
2746 in the CRL the verify fails with a revoked error.
2748 Various new CRL related callbacks added to X509_STORE_CTX structure.
2750 Command line options added to 'verify' application to support this.
2752 This needs some additional work, such as being able to handle multiple
2753 CRLs with different times, extension based lookup (rather than just
2754 by subject name) and ultimately more complete V2 CRL extension
2758 *) Add a general user interface API (crypto/ui/). This is designed
2759 to replace things like des_read_password and friends (backward
2760 compatibility functions using this new API are provided).
2761 The purpose is to remove prompting functions from the DES code
2762 section as well as provide for prompting through dialog boxes in
2763 a window system and the like.
2766 *) Add "ex_data" support to ENGINE so implementations can add state at a
2767 per-structure level rather than having to store it globally.
2770 *) Make it possible for ENGINE structures to be copied when retrieved by
2771 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
2772 This causes the "original" ENGINE structure to act like a template,
2773 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
2774 operational state can be localised to each ENGINE structure, despite the
2775 fact they all share the same "methods". New ENGINE structures returned in
2776 this case have no functional references and the return value is the single
2777 structural reference. This matches the single structural reference returned
2778 by ENGINE_by_id() normally, when it is incremented on the pre-existing
2782 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
2783 needs to match any other type at all we need to manually clear the
2787 *) Changes to the "openssl engine" utility to include;
2788 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
2789 about an ENGINE's available control commands.
2790 - executing control commands from command line arguments using the
2791 '-pre' and '-post' switches. '-post' is only used if '-t' is
2792 specified and the ENGINE is successfully initialised. The syntax for
2793 the individual commands are colon-separated, for example;
2794 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
2797 *) New dynamic control command support for ENGINEs. ENGINEs can now
2798 declare their own commands (numbers), names (strings), descriptions,
2799 and input types for run-time discovery by calling applications. A
2800 subset of these commands are implicitly classed as "executable"
2801 depending on their input type, and only these can be invoked through
2802 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
2803 can be based on user input, config files, etc). The distinction is
2804 that "executable" commands cannot return anything other than a boolean
2805 result and can only support numeric or string input, whereas some
2806 discoverable commands may only be for direct use through
2807 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
2808 pointers, or other custom uses. The "executable" commands are to
2809 support parameterisations of ENGINE behaviour that can be
2810 unambiguously defined by ENGINEs and used consistently across any
2811 OpenSSL-based application. Commands have been added to all the
2812 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
2813 control over shared-library paths without source code alterations.
2816 *) Changed all ENGINE implementations to dynamically allocate their
2817 ENGINEs rather than declaring them statically. Apart from this being
2818 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
2819 this also allows the implementations to compile without using the
2820 internal engine_int.h header.
2823 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
2824 'const' value. Any code that should be able to modify a RAND_METHOD
2825 should already have non-const pointers to it (ie. they should only
2826 modify their own ones).
2829 *) Made a variety of little tweaks to the ENGINE code.
2830 - "atalla" and "ubsec" string definitions were moved from header files
2831 to C code. "nuron" string definitions were placed in variables
2832 rather than hard-coded - allowing parameterisation of these values
2833 later on via ctrl() commands.
2834 - Removed unused "#if 0"'d code.
2835 - Fixed engine list iteration code so it uses ENGINE_free() to release
2836 structural references.
2837 - Constified the RAND_METHOD element of ENGINE structures.
2838 - Constified various get/set functions as appropriate and added
2839 missing functions (including a catch-all ENGINE_cpy that duplicates
2840 all ENGINE values onto a new ENGINE except reference counts/state).
2841 - Removed NULL parameter checks in get/set functions. Setting a method
2842 or function to NULL is a way of cancelling out a previously set
2843 value. Passing a NULL ENGINE parameter is just plain stupid anyway
2844 and doesn't justify the extra error symbols and code.
2845 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
2846 flags from engine_int.h to engine.h.
2847 - Changed prototypes for ENGINE handler functions (init(), finish(),
2848 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
2851 *) Implement binary inversion algorithm for BN_mod_inverse in addition
2852 to the algorithm using long division. The binary algorithm can be
2853 used only if the modulus is odd. On 32-bit systems, it is faster
2854 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
2855 roughly 5-15% for 256-bit moduli), so we use it only for moduli
2856 up to 450 bits. In 64-bit environments, the binary algorithm
2857 appears to be advantageous for much longer moduli; here we use it
2858 for moduli up to 2048 bits.
2861 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
2862 could not support the combine flag in choice fields.
2865 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
2866 extensions from a certificate request to the certificate.
2869 *) Allow multiple 'certopt' and 'nameopt' options to be separated
2870 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
2871 file: this allows the display of the certificate about to be
2872 signed to be customised, to allow certain fields to be included
2873 or excluded and extension details. The old system didn't display
2874 multicharacter strings properly, omitted fields not in the policy
2875 and couldn't display additional details such as extensions.
2878 *) Function EC_POINTs_mul for multiple scalar multiplication
2879 of an arbitrary number of elliptic curve points
2880 \sum scalars[i]*points[i],
2881 optionally including the generator defined for the EC_GROUP:
2882 scalar*generator + \sum scalars[i]*points[i].
2884 EC_POINT_mul is a simple wrapper function for the typical case
2885 that the point list has just one item (besides the optional
2889 *) First EC_METHODs for curves over GF(p):
2891 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
2892 operations and provides various method functions that can also
2893 operate with faster implementations of modular arithmetic.
2895 EC_GFp_mont_method() reuses most functions that are part of
2896 EC_GFp_simple_method, but uses Montgomery arithmetic.
2898 [Bodo Moeller; point addition and point doubling
2899 implementation directly derived from source code provided by
2900 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
2902 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
2903 crypto/ec/ec_lib.c):
2905 Curves are EC_GROUP objects (with an optional group generator)
2906 based on EC_METHODs that are built into the library.
2908 Points are EC_POINT objects based on EC_GROUP objects.
2910 Most of the framework would be able to handle curves over arbitrary
2911 finite fields, but as there are no obvious types for fields other
2912 than GF(p), some functions are limited to that for now.
2915 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
2916 that the file contains a complete HTTP response.
2919 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
2920 change the def and num file printf format specifier from "%-40sXXX"
2921 to "%-39s XXX". The latter will always guarantee a space after the
2922 field while the former will cause them to run together if the field
2923 is 40 of more characters long.
2926 *) Constify the cipher and digest 'method' functions and structures
2927 and modify related functions to take constant EVP_MD and EVP_CIPHER
2931 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
2932 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
2935 *) Modify EVP_Digest*() routines so they now return values. Although the
2936 internal software routines can never fail additional hardware versions
2940 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
2942 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
2943 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
2946 ERR_R_NESTED_ASN1_ERROR
2948 ERR_R_MISSING_ASN1_EOS
2949 were 4 .. 9, conflicting with
2950 ERR_LIB_RSA (= ERR_R_RSA_LIB)
2952 ERR_LIB_PEM (= ERR_R_PEM_LIB).
2953 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
2955 Add new error code 'ERR_R_INTERNAL_ERROR'.
2958 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
2962 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
2963 sets the subject name for a new request or supersedes the
2964 subject name in a given request. Formats that can be parsed are
2965 'CN=Some Name, OU=myOU, C=IT'
2967 'CN=Some Name/OU=myOU/C=IT'.
2969 Add options '-batch' and '-verbose' to 'openssl req'.
2970 [Massimiliano Pala <madwolf@hackmasters.net>]
2972 *) Introduce the possibility to access global variables through
2973 functions on platform were that's the best way to handle exporting
2974 global variables in shared libraries. To enable this functionality,
2975 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
2976 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
2977 is normally done by Configure or something similar).
2979 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
2980 in the source file (foo.c) like this:
2982 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
2983 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
2985 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
2986 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
2988 OPENSSL_DECLARE_GLOBAL(int,foo);
2989 #define foo OPENSSL_GLOBAL_REF(foo)
2990 OPENSSL_DECLARE_GLOBAL(double,bar);
2991 #define bar OPENSSL_GLOBAL_REF(bar)
2993 The #defines are very important, and therefore so is including the
2994 header file everywhere where the defined globals are used.
2996 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
2997 of ASN.1 items, but that structure is a bit different.
2999 The largest change is in util/mkdef.pl which has been enhanced with
3000 better and easier to understand logic to choose which symbols should
3001 go into the Windows .def files as well as a number of fixes and code
3002 cleanup (among others, algorithm keywords are now sorted
3003 lexicographically to avoid constant rewrites).
3006 *) In BN_div() keep a copy of the sign of 'num' before writing the
3007 result to 'rm' because if rm==num the value will be overwritten
3008 and produce the wrong result if 'num' is negative: this caused
3009 problems with BN_mod() and BN_nnmod().
3012 *) Function OCSP_request_verify(). This checks the signature on an
3013 OCSP request and verifies the signer certificate. The signer
3014 certificate is just checked for a generic purpose and OCSP request
3018 *) Add OCSP_check_validity() function to check the validity of OCSP
3019 responses. OCSP responses are prepared in real time and may only
3020 be a few seconds old. Simply checking that the current time lies
3021 between thisUpdate and nextUpdate max reject otherwise valid responses
3022 caused by either OCSP responder or client clock inaccuracy. Instead
3023 we allow thisUpdate and nextUpdate to fall within a certain period of
3024 the current time. The age of the response can also optionally be
3025 checked. Two new options -validity_period and -status_age added to
3029 *) If signature or public key algorithm is unrecognized print out its
3030 OID rather that just UNKNOWN.
3033 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
3034 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
3035 ID to be generated from the issuer certificate alone which can then be
3036 passed to OCSP_id_issuer_cmp().
3039 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
3040 ASN1 modules to export functions returning ASN1_ITEM pointers
3041 instead of the ASN1_ITEM structures themselves. This adds several
3042 new macros which allow the underlying ASN1 function/structure to
3043 be accessed transparently. As a result code should not use ASN1_ITEM
3044 references directly (such as &X509_it) but instead use the relevant
3045 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
3046 use of the new ASN1 code on platforms where exporting structures
3047 is problematical (for example in shared libraries) but exporting
3048 functions returning pointers to structures is not.
3051 *) Add support for overriding the generation of SSL/TLS session IDs.
3052 These callbacks can be registered either in an SSL_CTX or per SSL.
3053 The purpose of this is to allow applications to control, if they wish,
3054 the arbitrary values chosen for use as session IDs, particularly as it
3055 can be useful for session caching in multiple-server environments. A
3056 command-line switch for testing this (and any client code that wishes
3057 to use such a feature) has been added to "s_server".
3058 [Geoff Thorpe, Lutz Jaenicke]
3060 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
3061 of the form '#if defined(...) || defined(...) || ...' and
3062 '#if !defined(...) && !defined(...) && ...'. This also avoids
3063 the growing number of special cases it was previously handling.
3066 *) Make all configuration macros available for application by making
3067 sure they are available in opensslconf.h, by giving them names starting
3068 with "OPENSSL_" to avoid conflicts with other packages and by making
3069 sure e_os2.h will cover all platform-specific cases together with
3071 Additionally, it is now possible to define configuration/platform-
3072 specific names (called "system identities"). In the C code, these
3073 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
3074 macro with the name beginning with "OPENSSL_SYS_", which is determined
3075 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
3079 *) New option -set_serial to 'req' and 'x509' this allows the serial
3080 number to use to be specified on the command line. Previously self
3081 signed certificates were hard coded with serial number 0 and the
3082 CA options of 'x509' had to use a serial number in a file which was
3086 *) New options to 'ca' utility to support V2 CRL entry extensions.
3087 Currently CRL reason, invalidity date and hold instruction are
3088 supported. Add new CRL extensions to V3 code and some new objects.
3091 *) New function EVP_CIPHER_CTX_set_padding() this is used to
3092 disable standard block padding (aka PKCS#5 padding) in the EVP
3093 API, which was previously mandatory. This means that the data is
3094 not padded in any way and so the total length much be a multiple
3095 of the block size, otherwise an error occurs.
3098 *) Initial (incomplete) OCSP SSL support.
3101 *) New function OCSP_parse_url(). This splits up a URL into its host,
3102 port and path components: primarily to parse OCSP URLs. New -url
3103 option to ocsp utility.
3106 *) New nonce behavior. The return value of OCSP_check_nonce() now
3107 reflects the various checks performed. Applications can decide
3108 whether to tolerate certain situations such as an absent nonce
3109 in a response when one was present in a request: the ocsp application
3110 just prints out a warning. New function OCSP_add1_basic_nonce()
3111 this is to allow responders to include a nonce in a response even if
3112 the request is nonce-less.
3115 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
3116 skipped when using openssl x509 multiple times on a single input file,
3117 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
3120 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
3121 set string type: to handle setting ASN1_TIME structures. Fix ca
3122 utility to correctly initialize revocation date of CRLs.
3125 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
3126 the clients preferred ciphersuites and rather use its own preferences.
3127 Should help to work around M$ SGC (Server Gated Cryptography) bug in
3128 Internet Explorer by ensuring unchanged hash method during stepup.
3129 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
3132 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
3133 to aes and add a new 'exist' option to print out symbols that don't
3137 *) Additional options to ocsp utility to allow flags to be set and
3138 additional certificates supplied.
3141 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
3142 OCSP client a number of certificate to only verify the response
3146 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
3147 handle the new API. Currently only ECB, CBC modes supported. Add new
3150 Add TLS AES ciphersuites as described in RFC3268, "Advanced
3151 Encryption Standard (AES) Ciphersuites for Transport Layer
3152 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
3153 not enabled by default and were not part of the "ALL" ciphersuite
3154 alias because they were not yet official; they could be
3155 explicitly requested by specifying the "AESdraft" ciphersuite
3156 group alias. In the final release of OpenSSL 0.9.7, the group
3157 alias is called "AES" and is part of "ALL".)
3158 [Ben Laurie, Steve Henson, Bodo Moeller]
3160 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
3161 request to response.
3164 *) Functions for OCSP responders. OCSP_request_onereq_count(),
3165 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
3166 extract information from a certificate request. OCSP_response_create()
3167 creates a response and optionally adds a basic response structure.
3168 OCSP_basic_add1_status() adds a complete single response to a basic
3169 response and returns the OCSP_SINGLERESP structure just added (to allow
3170 extensions to be included for example). OCSP_basic_add1_cert() adds a
3171 certificate to a basic response and OCSP_basic_sign() signs a basic
3172 response with various flags. New helper functions ASN1_TIME_check()
3173 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
3174 (converts ASN1_TIME to GeneralizedTime).
3177 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
3178 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
3179 structure from a certificate. X509_pubkey_digest() digests the public_key
3180 contents: this is used in various key identifiers.
3183 *) Make sk_sort() tolerate a NULL argument.
3184 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
3186 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
3187 passed by the function are trusted implicitly. If any of them signed the
3188 response then it is assumed to be valid and is not verified.
3191 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
3192 to data. This was previously part of the PKCS7 ASN1 code. This
3193 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
3194 [Steve Henson, reported by Kenneth R. Robinette
3195 <support@securenetterm.com>]
3197 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
3198 routines: without these tracing memory leaks is very painful.
3199 Fix leaks in PKCS12 and PKCS7 routines.
3202 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
3203 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
3204 effectively meant GeneralizedTime would never be used. Now it
3205 is initialised to -1 but X509_time_adj() now has to check the value
3206 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
3207 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
3208 [Steve Henson, reported by Kenneth R. Robinette
3209 <support@securenetterm.com>]
3211 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
3212 result in a zero length in the ASN1_INTEGER structure which was
3213 not consistent with the structure when d2i_ASN1_INTEGER() was used
3214 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
3215 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
3216 where it did not print out a minus for negative ASN1_INTEGER.
3219 *) Add summary printout to ocsp utility. The various functions which
3220 convert status values to strings have been renamed to:
3221 OCSP_response_status_str(), OCSP_cert_status_str() and
3222 OCSP_crl_reason_str() and are no longer static. New options
3223 to verify nonce values and to disable verification. OCSP response
3224 printout format cleaned up.
3227 *) Add additional OCSP certificate checks. These are those specified
3228 in RFC2560. This consists of two separate checks: the CA of the
3229 certificate being checked must either be the OCSP signer certificate
3230 or the issuer of the OCSP signer certificate. In the latter case the
3231 OCSP signer certificate must contain the OCSP signing extended key
3232 usage. This check is performed by attempting to match the OCSP
3233 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
3234 in the OCSP_CERTID structures of the response.
3237 *) Initial OCSP certificate verification added to OCSP_basic_verify()
3238 and related routines. This uses the standard OpenSSL certificate
3239 verify routines to perform initial checks (just CA validity) and
3240 to obtain the certificate chain. Then additional checks will be
3241 performed on the chain. Currently the root CA is checked to see
3242 if it is explicitly trusted for OCSP signing. This is used to set
3243 a root CA as a global signing root: that is any certificate that
3244 chains to that CA is an acceptable OCSP signing certificate.
3247 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
3248 extensions from a separate configuration file.
3249 As when reading extensions from the main configuration file,
3250 the '-extensions ...' option may be used for specifying the
3252 [Massimiliano Pala <madwolf@comune.modena.it>]
3254 *) New OCSP utility. Allows OCSP requests to be generated or
3255 read. The request can be sent to a responder and the output
3256 parsed, outputed or printed in text form. Not complete yet:
3257 still needs to check the OCSP response validity.
3260 *) New subcommands for 'openssl ca':
3261 'openssl ca -status <serial>' prints the status of the cert with
3262 the given serial number (according to the index file).
3263 'openssl ca -updatedb' updates the expiry status of certificates
3265 [Massimiliano Pala <madwolf@comune.modena.it>]
3267 *) New '-newreq-nodes' command option to CA.pl. This is like
3268 '-newreq', but calls 'openssl req' with the '-nodes' option
3269 so that the resulting key is not encrypted.
3270 [Damien Miller <djm@mindrot.org>]
3272 *) New configuration for the GNU Hurd.
3273 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
3275 *) Initial code to implement OCSP basic response verify. This
3276 is currently incomplete. Currently just finds the signer's
3277 certificate and verifies the signature on the response.
3280 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
3281 value of OPENSSLDIR. This is available via the new '-d' option
3282 to 'openssl version', and is also included in 'openssl version -a'.
3285 *) Allowing defining memory allocation callbacks that will be given
3286 file name and line number information in additional arguments
3287 (a const char* and an int). The basic functionality remains, as
3288 well as the original possibility to just replace malloc(),
3289 realloc() and free() by functions that do not know about these
3290 additional arguments. To register and find out the current
3291 settings for extended allocation functions, the following
3292 functions are provided:
3294 CRYPTO_set_mem_ex_functions
3295 CRYPTO_set_locked_mem_ex_functions
3296 CRYPTO_get_mem_ex_functions
3297 CRYPTO_get_locked_mem_ex_functions
3299 These work the same way as CRYPTO_set_mem_functions and friends.
3300 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
3301 extended allocation function is enabled.
3302 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
3303 a conventional allocation function is enabled.
3304 [Richard Levitte, Bodo Moeller]
3306 *) Finish off removing the remaining LHASH function pointer casts.
3307 There should no longer be any prototype-casting required when using
3308 the LHASH abstraction, and any casts that remain are "bugs". See
3309 the callback types and macros at the head of lhash.h for details
3310 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
3313 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
3314 If /dev/[u]random devices are not available or do not return enough
3315 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
3317 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
3318 /etc/entropy will be queried once each in this sequence, quering stops
3319 when enough entropy was collected without querying more sockets.
3322 *) Change the Unix RAND_poll() variant to be able to poll several
3323 random devices, as specified by DEVRANDOM, until a sufficient amount
3324 of data has been collected. We spend at most 10 ms on each file
3325 (select timeout) and read in non-blocking mode. DEVRANDOM now
3326 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
3327 (previously it was just the string "/dev/urandom"), so on typical
3328 platforms the 10 ms delay will never occur.
3329 Also separate out the Unix variant to its own file, rand_unix.c.
3330 For VMS, there's a currently-empty rand_vms.c.
3333 *) Move OCSP client related routines to ocsp_cl.c. These
3334 provide utility functions which an application needing
3335 to issue a request to an OCSP responder and analyse the
3336 response will typically need: as opposed to those which an
3337 OCSP responder itself would need which will be added later.
3339 OCSP_request_sign() signs an OCSP request with an API similar
3340 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
3341 response. OCSP_response_get1_basic() extracts basic response
3342 from response. OCSP_resp_find_status(): finds and extracts status
3343 information from an OCSP_CERTID structure (which will be created
3344 when the request structure is built). These are built from lower
3345 level functions which work on OCSP_SINGLERESP structures but
3346 wont normally be used unless the application wishes to examine
3347 extensions in the OCSP response for example.
3349 Replace nonce routines with a pair of functions.
3350 OCSP_request_add1_nonce() adds a nonce value and optionally
3351 generates a random value. OCSP_check_nonce() checks the
3352 validity of the nonce in an OCSP response.
3355 *) Change function OCSP_request_add() to OCSP_request_add0_id().
3356 This doesn't copy the supplied OCSP_CERTID and avoids the
3357 need to free up the newly created id. Change return type
3358 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
3359 This can then be used to add extensions to the request.
3360 Deleted OCSP_request_new(), since most of its functionality
3361 is now in OCSP_REQUEST_new() (and the case insensitive name
3362 clash) apart from the ability to set the request name which
3363 will be added elsewhere.
3366 *) Update OCSP API. Remove obsolete extensions argument from
3367 various functions. Extensions are now handled using the new
3368 OCSP extension code. New simple OCSP HTTP function which
3369 can be used to send requests and parse the response.
3372 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
3373 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
3374 uses the special reorder version of SET OF to sort the attributes
3375 and reorder them to match the encoded order. This resolves a long
3376 standing problem: a verify on a PKCS7 structure just after signing
3377 it used to fail because the attribute order did not match the
3378 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
3379 it uses the received order. This is necessary to tolerate some broken
3380 software that does not order SET OF. This is handled by encoding
3381 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
3382 to produce the required SET OF.
3385 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
3386 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
3387 files to get correct declarations of the ASN.1 item variables.
3390 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
3391 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
3392 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
3393 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
3394 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
3395 ASN1_ITEM and no wrapper functions.
3398 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
3399 replace the old function pointer based I/O routines. Change most of
3400 the *_d2i_bio() and *_d2i_fp() functions to use these.
3403 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
3404 lines, recognice more "algorithms" that can be deselected, and make
3405 it complain about algorithm deselection that isn't recognised.
3408 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
3409 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
3410 to use new functions. Add NO_ASN1_OLD which can be set to remove
3411 some old style ASN1 functions: this can be used to determine if old
3412 code will still work when these eventually go away.
3415 *) New extension functions for OCSP structures, these follow the
3416 same conventions as certificates and CRLs.
3419 *) New function X509V3_add1_i2d(). This automatically encodes and
3420 adds an extension. Its behaviour can be customised with various
3421 flags to append, replace or delete. Various wrappers added for
3422 certifcates and CRLs.
3425 *) Fix to avoid calling the underlying ASN1 print routine when
3426 an extension cannot be parsed. Correct a typo in the
3427 OCSP_SERVICELOC extension. Tidy up print OCSP format.
3430 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
3431 entries for variables.
3434 *) Add functionality to apps/openssl.c for detecting locking
3435 problems: As the program is single-threaded, all we have
3436 to do is register a locking callback using an array for
3437 storing which locks are currently held by the program.
3440 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
3441 SSL_get_ex_data_X509_STORE_idx(), which is used in
3442 ssl_verify_cert_chain() and thus can be called at any time
3443 during TLS/SSL handshakes so that thread-safety is essential.
3444 Unfortunately, the ex_data design is not at all suited
3445 for multi-threaded use, so it probably should be abolished.
3448 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
3449 [Broadcom, tweaked and integrated by Geoff Thorpe]
3451 *) Move common extension printing code to new function
3452 X509V3_print_extensions(). Reorganise OCSP print routines and
3453 implement some needed OCSP ASN1 functions. Add OCSP extensions.
3456 *) New function X509_signature_print() to remove duplication in some
3460 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
3461 set (this was treated exactly the same as SET OF previously). This
3462 is used to reorder the STACK representing the structure to match the
3463 encoding. This will be used to get round a problem where a PKCS7
3464 structure which was signed could not be verified because the STACK
3465 order did not reflect the encoded order.
3468 *) Reimplement the OCSP ASN1 module using the new code.
3471 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
3472 for its ASN1 operations. The old style function pointers still exist
3473 for now but they will eventually go away.
3476 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
3477 completely replaces the old ASN1 functionality with a table driven
3478 encoder and decoder which interprets an ASN1_ITEM structure describing
3479 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
3480 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
3481 has also been converted to the new form.
3484 *) Change BN_mod_exp_recp so that negative moduli are tolerated
3485 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
3486 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
3487 for negative moduli.
3490 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
3491 of not touching the result's sign bit.
3494 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
3498 *) Changed the LHASH code to use prototypes for callbacks, and created
3499 macros to declare and implement thin (optionally static) functions
3500 that provide type-safety and avoid function pointer casting for the
3501 type-specific callbacks.
3504 *) Added Kerberos Cipher Suites to be used with TLS, as written in
3506 [Veers Staats <staatsvr@asc.hpc.mil>,
3507 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
3509 *) Reformat the FAQ so the different questions and answers can be divided
3510 in sections depending on the subject.
3513 *) Have the zlib compression code load ZLIB.DLL dynamically under
3517 *) New function BN_mod_sqrt for computing square roots modulo a prime
3518 (using the probabilistic Tonelli-Shanks algorithm unless
3519 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
3520 be handled deterministically).
3521 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3523 *) Make BN_mod_inverse faster by explicitly handling small quotients
3524 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
3525 512 bits], about 30% for larger ones [1024 or 2048 bits].)
3528 *) New function BN_kronecker.
3531 *) Fix BN_gcd so that it works on negative inputs; the result is
3532 positive unless both parameters are zero.
3533 Previously something reasonably close to an infinite loop was
3534 possible because numbers could be growing instead of shrinking
3535 in the implementation of Euclid's algorithm.
3538 *) Fix BN_is_word() and BN_is_one() macros to take into account the
3539 sign of the number in question.
3541 Fix BN_is_word(a,w) to work correctly for w == 0.
3543 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
3544 because its test if the absolute value of 'a' equals 'w'.
3545 Note that BN_abs_is_word does *not* handle w == 0 reliably;
3546 it exists mostly for use in the implementations of BN_is_zero(),
3547 BN_is_one(), and BN_is_word().
3550 *) New function BN_swap.
3553 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
3554 the exponentiation functions are more likely to produce reasonable
3555 results on negative inputs.
3558 *) Change BN_mod_mul so that the result is always non-negative.
3559 Previously, it could be negative if one of the factors was negative;
3560 I don't think anyone really wanted that behaviour.
3563 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
3564 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
3565 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
3566 and add new functions:
3575 BN_mod_lshift1_quick
3579 These functions always generate non-negative results.
3581 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
3582 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
3584 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
3585 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
3586 be reduced modulo m.
3587 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3590 The following entry accidentily appeared in the CHANGES file
3591 distributed with OpenSSL 0.9.7. The modifications described in
3592 it do *not* apply to OpenSSL 0.9.7.
3594 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3595 was actually never needed) and in BN_mul(). The removal in BN_mul()
3596 required a small change in bn_mul_part_recursive() and the addition
3597 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3598 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3599 bn_sub_words() and bn_add_words() except they take arrays with
3604 *) In 'openssl passwd', verify passwords read from the terminal
3605 unless the '-salt' option is used (which usually means that
3606 verification would just waste user's time since the resulting
3607 hash is going to be compared with some given password hash)
3608 or the new '-noverify' option is used.
3610 This is an incompatible change, but it does not affect
3611 non-interactive use of 'openssl passwd' (passwords on the command
3612 line, '-stdin' option, '-in ...' option) and thus should not
3616 *) Remove all references to RSAref, since there's no more need for it.
3619 *) Make DSO load along a path given through an environment variable
3620 (SHLIB_PATH) with shl_load().
3623 *) Constify the ENGINE code as a result of BIGNUM constification.
3624 Also constify the RSA code and most things related to it. In a
3625 few places, most notable in the depth of the ASN.1 code, ugly
3626 casts back to non-const were required (to be solved at a later
3630 *) Make it so the openssl application has all engines loaded by default.
3633 *) Constify the BIGNUM routines a little more.
3636 *) Add the following functions:
3638 ENGINE_load_cswift()
3640 ENGINE_load_atalla()
3642 ENGINE_load_builtin_engines()
3644 That way, an application can itself choose if external engines that
3645 are built-in in OpenSSL shall ever be used or not. The benefit is
3646 that applications won't have to be linked with libdl or other dso
3647 libraries unless it's really needed.
3649 Changed 'openssl engine' to load all engines on demand.
3650 Changed the engine header files to avoid the duplication of some
3651 declarations (they differed!).
3654 *) 'openssl engine' can now list capabilities.
3657 *) Better error reporting in 'openssl engine'.
3660 *) Never call load_dh_param(NULL) in s_server.
3663 *) Add engine application. It can currently list engines by name and
3664 identity, and test if they are actually available.
3667 *) Improve RPM specification file by forcing symbolic linking and making
3668 sure the installed documentation is also owned by root.root.
3669 [Damien Miller <djm@mindrot.org>]
3671 *) Give the OpenSSL applications more possibilities to make use of
3672 keys (public as well as private) handled by engines.
3675 *) Add OCSP code that comes from CertCo.
3678 *) Add VMS support for the Rijndael code.
3681 *) Added untested support for Nuron crypto accelerator.
3684 *) Add support for external cryptographic devices. This code was
3685 previously distributed separately as the "engine" branch.
3686 [Geoff Thorpe, Richard Levitte]
3688 *) Rework the filename-translation in the DSO code. It is now possible to
3689 have far greater control over how a "name" is turned into a filename
3690 depending on the operating environment and any oddities about the
3691 different shared library filenames on each system.
3694 *) Support threads on FreeBSD-elf in Configure.
3697 *) Fix for SHA1 assembly problem with MASM: it produces
3698 warnings about corrupt line number information when assembling
3699 with debugging information. This is caused by the overlapping
3701 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
3704 NCONF_get_number() has no error checking at all. As a replacement,
3705 NCONF_get_number_e() is defined (_e for "error checking") and is
3706 promoted strongly. The old NCONF_get_number is kept around for
3707 binary backward compatibility.
3708 Make it possible for methods to load from something other than a BIO,
3709 by providing a function pointer that is given a name instead of a BIO.
3710 For example, this could be used to load configuration data from an
3714 *) Fix for non blocking accept BIOs. Added new I/O special reason
3715 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
3716 with non blocking I/O was not possible because no retry code was
3717 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
3721 *) Added the beginnings of Rijndael support.
3724 *) Fix for bug in DirectoryString mask setting. Add support for
3725 X509_NAME_print_ex() in 'req' and X509_print_ex() function
3726 to allow certificate printing to more controllable, additional
3727 'certopt' option to 'x509' to allow new printing options to be
3731 *) Clean old EAY MD5 hack from e_os.h.
3734 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
3736 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3737 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3738 [Joe Orton, Steve Henson]
3740 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
3742 *) Fix additional bug revealed by the NISCC test suite:
3744 Stop bug triggering large recursion when presented with
3745 certain ASN.1 tags (CVE-2003-0851)
3748 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
3750 *) Fix various bugs revealed by running the NISCC test suite:
3752 Stop out of bounds reads in the ASN1 code when presented with
3753 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3755 If verify callback ignores invalid public key errors don't try to check
3756 certificate signature with the NULL public key.
3760 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3761 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3765 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3766 extra data after the compression methods not only for TLS 1.0
3767 but also for SSL 3.0 (as required by the specification).
3768 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3770 *) Change X509_certificate_type() to mark the key as exported/exportable
3771 when it's 512 *bits* long, not 512 bytes.
3774 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
3776 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3777 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3778 a protocol version number mismatch like a decryption error
3779 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3782 *) Turn on RSA blinding by default in the default implementation
3783 to avoid a timing attack. Applications that don't want it can call
3784 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3785 They would be ill-advised to do so in most cases.
3786 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3788 *) Change RSA blinding code so that it works when the PRNG is not
3789 seeded (in this case, the secret RSA exponent is abused as
3790 an unpredictable seed -- if it is not unpredictable, there
3791 is no point in blinding anyway). Make RSA blinding thread-safe
3792 by remembering the creator's thread ID in rsa->blinding and
3793 having all other threads use local one-time blinding factors
3794 (this requires more computation than sharing rsa->blinding, but
3795 avoids excessive locking; and if an RSA object is not shared
3796 between threads, blinding will still be very fast).
3799 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
3801 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3802 via timing by performing a MAC computation even if incorrrect
3803 block cipher padding has been found. This is a countermeasure
3804 against active attacks where the attacker has to distinguish
3805 between bad padding and a MAC verification error. (CVE-2003-0078)
3807 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3808 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3809 Martin Vuagnoux (EPFL, Ilion)]
3811 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
3813 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
3814 memory from it's contents. This is done with a counter that will
3815 place alternating values in each byte. This can be used to solve
3816 two issues: 1) the removal of calls to memset() by highly optimizing
3817 compilers, and 2) cleansing with other values than 0, since those can
3818 be read through on certain media, for example a swap space on disk.
3821 *) Bugfix: client side session caching did not work with external caching,
3822 because the session->cipher setting was not restored when reloading
3823 from the external cache. This problem was masked, when
3824 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
3825 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
3828 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
3829 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
3830 [Zeev Lieber <zeev-l@yahoo.com>]
3832 *) Undo an undocumented change introduced in 0.9.6e which caused
3833 repeated calls to OpenSSL_add_all_ciphers() and
3834 OpenSSL_add_all_digests() to be ignored, even after calling
3838 *) Change the default configuration reader to deal with last line not
3839 being properly terminated.
3842 *) Change X509_NAME_cmp() so it applies the special rules on handling
3843 DN values that are of type PrintableString, as well as RDNs of type
3844 emailAddress where the value has the type ia5String.
3845 [stefank@valicert.com via Richard Levitte]
3847 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
3848 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
3849 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
3850 the bitwise-OR of the two for use by the majority of applications
3851 wanting this behaviour, and update the docs. The documented
3852 behaviour and actual behaviour were inconsistent and had been
3853 changing anyway, so this is more a bug-fix than a behavioural
3855 [Geoff Thorpe, diagnosed by Nadav Har'El]
3857 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
3858 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
3861 *) Fix initialization code race conditions in
3862 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
3863 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
3864 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
3865 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
3866 ssl2_get_cipher_by_char(),
3867 ssl3_get_cipher_by_char().
3868 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
3870 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
3871 the cached sessions are flushed, as the remove_cb() might use ex_data
3872 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
3873 (see [openssl.org #212]).
3874 [Geoff Thorpe, Lutz Jaenicke]
3876 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
3877 length, instead of the encoding length to d2i_ASN1_OBJECT.
3880 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
3882 *) [In 0.9.6g-engine release:]
3883 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
3884 [Lynn Gazis <lgazis@rainbow.com>]
3886 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
3888 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
3889 and get fix the header length calculation.
3890 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
3891 Alon Kantor <alonk@checkpoint.com> (and others),
3894 *) Use proper error handling instead of 'assertions' in buffer
3895 overflow checks added in 0.9.6e. This prevents DoS (the
3896 assertions could call abort()).
3897 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
3899 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
3901 *) Add various sanity checks to asn1_get_length() to reject
3902 the ASN1 length bytes if they exceed sizeof(long), will appear
3903 negative or the content length exceeds the length of the
3905 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3907 *) Fix cipher selection routines: ciphers without encryption had no flags
3908 for the cipher strength set and where therefore not handled correctly
3909 by the selection routines (PR #130).
3912 *) Fix EVP_dsa_sha macro.
3916 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
3917 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
3918 that was added in OpenSSL 0.9.6d.
3920 As the countermeasure turned out to be incompatible with some
3921 broken SSL implementations, the new option is part of SSL_OP_ALL.
3922 SSL_OP_ALL is usually employed when compatibility with weird SSL
3923 implementations is desired (e.g. '-bugs' option to 's_client' and
3924 's_server'), so the new option is automatically set in many
3928 *) Changes in security patch:
3930 Changes marked "(CHATS)" were sponsored by the Defense Advanced
3931 Research Projects Agency (DARPA) and Air Force Research Laboratory,
3932 Air Force Materiel Command, USAF, under agreement number
3935 *) Add various sanity checks to asn1_get_length() to reject
3936 the ASN1 length bytes if they exceed sizeof(long), will appear
3937 negative or the content length exceeds the length of the
3938 supplied buffer. (CVE-2002-0659)
3939 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3941 *) Assertions for various potential buffer overflows, not known to
3943 [Ben Laurie (CHATS)]
3945 *) Various temporary buffers to hold ASCII versions of integers were
3946 too small for 64 bit platforms. (CVE-2002-0655)
3947 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
3949 *) Remote buffer overflow in SSL3 protocol - an attacker could
3950 supply an oversized session ID to a client. (CVE-2002-0656)
3951 [Ben Laurie (CHATS)]
3953 *) Remote buffer overflow in SSL2 protocol - an attacker could
3954 supply an oversized client master key. (CVE-2002-0656)
3955 [Ben Laurie (CHATS)]
3957 Changes between 0.9.6c and 0.9.6d [9 May 2002]
3959 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
3960 encoded as NULL) with id-dsa-with-sha1.
3961 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
3963 *) Check various X509_...() return values in apps/req.c.
3964 [Nils Larsch <nla@trustcenter.de>]
3966 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
3967 an end-of-file condition would erronously be flagged, when the CRLF
3968 was just at the end of a processed block. The bug was discovered when
3969 processing data through a buffering memory BIO handing the data to a
3970 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
3971 <ptsekov@syntrex.com> and Nedelcho Stanev.
3974 *) Implement a countermeasure against a vulnerability recently found
3975 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
3976 before application data chunks to avoid the use of known IVs
3977 with data potentially chosen by the attacker.
3980 *) Fix length checks in ssl3_get_client_hello().
3983 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
3984 to prevent ssl3_read_internal() from incorrectly assuming that
3985 ssl3_read_bytes() found application data while handshake
3986 processing was enabled when in fact s->s3->in_read_app_data was
3987 merely automatically cleared during the initial handshake.
3988 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
3990 *) Fix object definitions for Private and Enterprise: they were not
3991 recognized in their shortname (=lowercase) representation. Extend
3992 obj_dat.pl to issue an error when using undefined keywords instead
3993 of silently ignoring the problem (Svenning Sorensen
3994 <sss@sss.dnsalias.net>).
3997 *) Fix DH_generate_parameters() so that it works for 'non-standard'
3998 generators, i.e. generators other than 2 and 5. (Previously, the
3999 code did not properly initialise the 'add' and 'rem' values to
4000 BN_generate_prime().)
4002 In the new general case, we do not insist that 'generator' is
4003 actually a primitive root: This requirement is rather pointless;
4004 a generator of the order-q subgroup is just as good, if not
4008 *) Map new X509 verification errors to alerts. Discovered and submitted by
4009 Tom Wu <tom@arcot.com>.
4012 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
4013 returning non-zero before the data has been completely received
4014 when using non-blocking I/O.
4015 [Bodo Moeller; problem pointed out by John Hughes]
4017 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
4018 [Ben Laurie, Lutz Jaenicke]
4020 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
4021 Yoram Zahavi <YoramZ@gilian.com>).
4024 *) Add information about CygWin 1.3 and on, and preserve proper
4025 configuration for the versions before that.
4026 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
4028 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
4029 check whether we deal with a copy of a session and do not delete from
4030 the cache in this case. Problem reported by "Izhar Shoshani Levi"
4031 <izhar@checkpoint.com>.
4034 *) Do not store session data into the internal session cache, if it
4035 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
4036 flag is set). Proposed by Aslam <aslam@funk.com>.
4039 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
4043 *) [In 0.9.6d-engine release:]
4044 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4045 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4047 *) Add the configuration target linux-s390x.
4048 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
4050 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
4051 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
4052 variable as an indication that a ClientHello message has been
4053 received. As the flag value will be lost between multiple
4054 invocations of ssl3_accept when using non-blocking I/O, the
4055 function may not be aware that a handshake has actually taken
4056 place, thus preventing a new session from being added to the
4059 To avoid this problem, we now set s->new_session to 2 instead of
4060 using a local variable.
4061 [Lutz Jaenicke, Bodo Moeller]
4063 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
4064 if the SSL_R_LENGTH_MISMATCH error is detected.
4065 [Geoff Thorpe, Bodo Moeller]
4067 *) New 'shared_ldflag' column in Configure platform table.
4070 *) Fix EVP_CIPHER_mode macro.
4071 ["Dan S. Camper" <dan@bti.net>]
4073 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
4074 type, we must throw them away by setting rr->length to 0.
4075 [D P Chang <dpc@qualys.com>]
4077 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
4079 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
4080 <Dominikus.Scherkl@biodata.com>. (The previous implementation
4081 worked incorrectly for those cases where range = 10..._2 and
4082 3*range is two bits longer than range.)
4085 *) Only add signing time to PKCS7 structures if it is not already
4089 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
4090 OBJ_ld_ce should be OBJ_id_ce.
4091 Also some ip-pda OIDs in crypto/objects/objects.txt were
4092 incorrect (cf. RFC 3039).
4093 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
4095 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
4096 returns early because it has nothing to do.
4097 [Andy Schneider <andy.schneider@bjss.co.uk>]
4099 *) [In 0.9.6c-engine release:]
4100 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
4101 [Andy Schneider <andy.schneider@bjss.co.uk>]
4103 *) [In 0.9.6c-engine release:]
4104 Add support for Cryptographic Appliance's keyserver technology.
4105 (Use engine 'keyclient')
4106 [Cryptographic Appliances and Geoff Thorpe]
4108 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
4109 is called via tools/c89.sh because arguments have to be
4110 rearranged (all '-L' options must appear before the first object
4112 [Richard Shapiro <rshapiro@abinitio.com>]
4114 *) [In 0.9.6c-engine release:]
4115 Add support for Broadcom crypto accelerator cards, backported
4117 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
4119 *) [In 0.9.6c-engine release:]
4120 Add support for SureWare crypto accelerator cards from
4121 Baltimore Technologies. (Use engine 'sureware')
4122 [Baltimore Technologies and Mark Cox]
4124 *) [In 0.9.6c-engine release:]
4125 Add support for crypto accelerator cards from Accelerated
4126 Encryption Processing, www.aep.ie. (Use engine 'aep')
4127 [AEP Inc. and Mark Cox]
4129 *) Add a configuration entry for gcc on UnixWare.
4130 [Gary Benson <gbenson@redhat.com>]
4132 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
4133 messages are stored in a single piece (fixed-length part and
4134 variable-length part combined) and fix various bugs found on the way.
4137 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
4138 instead. BIO_gethostbyname() does not know what timeouts are
4139 appropriate, so entries would stay in cache even when they have
4141 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
4143 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
4144 faced with a pathologically small ClientHello fragment that does
4145 not contain client_version: Instead of aborting with an error,
4146 simply choose the highest available protocol version (i.e.,
4147 TLS 1.0 unless it is disabled). In practice, ClientHello
4148 messages are never sent like this, but this change gives us
4149 strictly correct behaviour at least for TLS.
4152 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
4153 never resets s->method to s->ctx->method when called from within
4154 one of the SSL handshake functions.
4155 [Bodo Moeller; problem pointed out by Niko Baric]
4157 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
4158 (sent using the client's version number) if client_version is
4159 smaller than the protocol version in use. Also change
4160 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
4161 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
4162 the client will at least see that alert.
4165 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
4169 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
4170 client receives HelloRequest while in a handshake.
4171 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
4173 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
4174 should end in 'break', not 'goto end' which circuments various
4175 cleanups done in state SSL_ST_OK. But session related stuff
4176 must be disabled for SSL_ST_OK in the case that we just sent a
4179 Also avoid some overhead by not calling ssl_init_wbio_buffer()
4180 before just sending a HelloRequest.
4181 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
4183 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
4184 reveal whether illegal block cipher padding was found or a MAC
4185 verification error occured. (Neither SSLerr() codes nor alerts
4186 are directly visible to potential attackers, but the information
4187 may leak via logfiles.)
4189 Similar changes are not required for the SSL 2.0 implementation
4190 because the number of padding bytes is sent in clear for SSL 2.0,
4191 and the extra bytes are just ignored. However ssl/s2_pkt.c
4192 failed to verify that the purported number of padding bytes is in
4196 *) Add OpenUNIX-8 support including shared libraries
4197 (Boyd Lynn Gerber <gerberb@zenez.com>).
4200 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
4201 'wristwatch attack' using huge encoding parameters (cf.
4202 James H. Manger's CRYPTO 2001 paper). Note that the
4203 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
4204 encoding parameters and hence was not vulnerable.
4207 *) BN_sqr() bug fix.
4208 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
4210 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
4211 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
4212 followed by modular reduction.
4213 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
4215 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
4216 equivalent based on BN_pseudo_rand() instead of BN_rand().
4219 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
4220 This function was broken, as the check for a new client hello message
4221 to handle SGC did not allow these large messages.
4222 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
4225 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
4228 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
4229 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
4232 *) Rework the configuration and shared library support for Tru64 Unix.
4233 The configuration part makes use of modern compiler features and
4234 still retains old compiler behavior for those that run older versions
4235 of the OS. The shared library support part includes a variant that
4236 uses the RPATH feature, and is available through the special
4237 configuration target "alpha-cc-rpath", which will never be selected
4239 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
4241 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
4242 with the same message size as in ssl3_get_certificate_request().
4243 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
4244 messages might inadvertently be reject as too long.
4245 [Petr Lampa <lampa@fee.vutbr.cz>]
4247 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
4250 *) Modified SSL library such that the verify_callback that has been set
4251 specificly for an SSL object with SSL_set_verify() is actually being
4252 used. Before the change, a verify_callback set with this function was
4253 ignored and the verify_callback() set in the SSL_CTX at the time of
4254 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
4255 to allow the necessary settings.
4258 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
4259 explicitly to NULL, as at least on Solaris 8 this seems not always to be
4260 done automatically (in contradiction to the requirements of the C
4261 standard). This made problems when used from OpenSSH.
4264 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
4265 dh->length and always used
4267 BN_rand_range(priv_key, dh->p).
4269 BN_rand_range() is not necessary for Diffie-Hellman, and this
4270 specific range makes Diffie-Hellman unnecessarily inefficient if
4271 dh->length (recommended exponent length) is much smaller than the
4272 length of dh->p. We could use BN_rand_range() if the order of
4273 the subgroup was stored in the DH structure, but we only have
4278 BN_rand(priv_key, l, ...)
4280 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
4286 RSA_eay_public_encrypt
4287 RSA_eay_private_decrypt
4288 RSA_eay_private_encrypt (signing)
4289 RSA_eay_public_decrypt (signature verification)
4291 (default implementations for RSA_public_encrypt,
4292 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
4293 always reject numbers >= n.
4296 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
4297 to synchronize access to 'locking_thread'. This is necessary on
4298 systems where access to 'locking_thread' (an 'unsigned long'
4299 variable) is not atomic.
4302 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
4303 *before* setting the 'crypto_lock_rand' flag. The previous code had
4304 a race condition if 0 is a valid thread ID.
4305 [Travis Vitek <vitek@roguewave.com>]
4307 *) Add support for shared libraries under Irix.
4308 [Albert Chin-A-Young <china@thewrittenword.com>]
4310 *) Add configuration option to build on Linux on both big-endian and
4312 [Ralf Baechle <ralf@uni-koblenz.de>]
4314 *) Add the possibility to create shared libraries on HP-UX.
4317 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
4319 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
4320 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
4321 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
4322 PRNG state recovery was possible based on the output of
4323 one PRNG request appropriately sized to gain knowledge on
4324 'md' followed by enough consecutive 1-byte PRNG requests
4325 to traverse all of 'state'.
4327 1. When updating 'md_local' (the current thread's copy of 'md')
4328 during PRNG output generation, hash all of the previous
4329 'md_local' value, not just the half used for PRNG output.
4331 2. Make the number of bytes from 'state' included into the hash
4332 independent from the number of PRNG bytes requested.
4334 The first measure alone would be sufficient to avoid
4335 Markku-Juhani's attack. (Actually it had never occurred
4336 to me that the half of 'md_local' used for chaining was the
4337 half from which PRNG output bytes were taken -- I had always
4338 assumed that the secret half would be used.) The second
4339 measure makes sure that additional data from 'state' is never
4340 mixed into 'md_local' in small portions; this heuristically
4341 further strengthens the PRNG.
4344 *) Fix crypto/bn/asm/mips3.s.
4347 *) When only the key is given to "enc", the IV is undefined. Print out
4348 an error message in this case.
4351 *) Handle special case when X509_NAME is empty in X509 printing routines.
4354 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
4355 positive and less than q.
4358 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
4359 used: it isn't thread safe and the add_lock_callback should handle
4361 [Paul Rose <Paul.Rose@bridge.com>]
4363 *) Verify that incoming data obeys the block size in
4364 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
4368 [Ulf Möller, Bodo Möller]
4370 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
4371 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
4372 when fixing the server behaviour for backwards-compatible 'client
4373 hello' messages. (Note that the attack is impractical against
4374 SSL 3.0 and TLS 1.0 anyway because length and version checking
4375 means that the probability of guessing a valid ciphertext is
4376 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
4379 Before 0.9.5, the countermeasure (hide the error by generating a
4380 random 'decryption result') did not work properly because
4381 ERR_clear_error() was missing, meaning that SSL_get_error() would
4382 detect the supposedly ignored error.
4384 Both problems are now fixed.
4387 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
4388 (previously it was 1024).
4391 *) Fix for compatibility mode trust settings: ignore trust settings
4392 unless some valid trust or reject settings are present.
4395 *) Fix for blowfish EVP: its a variable length cipher.
4398 *) Fix various bugs related to DSA S/MIME verification. Handle missing
4399 parameters in DSA public key structures and return an error in the
4400 DSA routines if parameters are absent.
4403 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
4404 in the current directory if neither $RANDFILE nor $HOME was set.
4405 RAND_file_name() in 0.9.6a returned NULL in this case. This has
4406 caused some confusion to Windows users who haven't defined $HOME.
4407 Thus RAND_file_name() is changed again: e_os.h can define a
4408 DEFAULT_HOME, which will be used if $HOME is not set.
4409 For Windows, we use "C:"; on other platforms, we still require
4410 environment variables.
4412 *) Move 'if (!initialized) RAND_poll()' into regions protected by
4413 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
4414 having multiple threads call RAND_poll() concurrently.
4417 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
4418 combination of a flag and a thread ID variable.
4419 Otherwise while one thread is in ssleay_rand_bytes (which sets the
4420 flag), *other* threads can enter ssleay_add_bytes without obeying
4421 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
4422 that they do not hold after the first thread unsets add_do_not_lock).
4425 *) Change bctest again: '-x' expressions are not available in all
4429 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
4431 *) Fix a couple of memory leaks in PKCS7_dataDecode()
4432 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
4434 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
4435 the default extension for executables, if any. Also, make the perl
4436 scripts that use symlink() to test if it really exists and use "cp"
4437 if it doesn't. All this made OpenSSL compilable and installable in
4441 *) Fix for asn1_GetSequence() for indefinite length constructed data.
4442 If SEQUENCE is length is indefinite just set c->slen to the total
4443 amount of data available.
4444 [Steve Henson, reported by shige@FreeBSD.org]
4445 [This change does not apply to 0.9.7.]
4447 *) Change bctest to avoid here-documents inside command substitution
4448 (workaround for FreeBSD /bin/sh bug).
4449 For compatibility with Ultrix, avoid shell functions (introduced
4450 in the bctest version that searches along $PATH).
4453 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
4454 with des_encrypt() defined on some operating systems, like Solaris
4458 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
4459 On the Importance of Eliminating Errors in Cryptographic
4460 Computations, J. Cryptology 14 (2001) 2, 101-119,
4461 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
4464 *) MIPS assembler BIGNUM division bug fix.
4467 *) Disabled incorrect Alpha assembler code.
4470 *) Fix PKCS#7 decode routines so they correctly update the length
4471 after reading an EOC for the EXPLICIT tag.
4473 [This change does not apply to 0.9.7.]
4475 *) Fix bug in PKCS#12 key generation routines. This was triggered
4476 if a 3DES key was generated with a 0 initial byte. Include
4477 PKCS12_BROKEN_KEYGEN compilation option to retain the old
4478 (but broken) behaviour.
4481 *) Enhance bctest to search for a working bc along $PATH and print
4483 [Tim Rice <tim@multitalents.net> via Richard Levitte]
4485 *) Fix memory leaks in err.c: free err_data string if necessary;
4486 don't write to the wrong index in ERR_set_error_data.
4489 *) Implement ssl23_peek (analogous to ssl23_read), which previously
4493 *) Replace rdtsc with _emit statements for VC++ version 5.
4494 [Jeremy Cooper <jeremy@baymoo.org>]
4496 *) Make it possible to reuse SSLv2 sessions.
4499 *) In copy_email() check for >= 0 as a return value for
4500 X509_NAME_get_index_by_NID() since 0 is a valid index.
4501 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
4503 *) Avoid coredump with unsupported or invalid public keys by checking if
4504 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
4505 PKCS7_verify() fails with non detached data.
4508 *) Don't use getenv in library functions when run as setuid/setgid.
4509 New function OPENSSL_issetugid().
4512 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
4513 due to incorrect handling of multi-threading:
4515 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
4517 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
4519 3. Count how many times MemCheck_off() has been called so that
4520 nested use can be treated correctly. This also avoids
4521 inband-signalling in the previous code (which relied on the
4522 assumption that thread ID 0 is impossible).
4525 *) Add "-rand" option also to s_client and s_server.
4528 *) Fix CPU detection on Irix 6.x.
4529 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
4530 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4532 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
4535 [This change does not apply to 0.9.7.]
4537 *) Use the cached encoding of an X509_NAME structure rather than
4538 copying it. This is apparently the reason for the libsafe "errors"
4539 but the code is actually correct.
4542 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
4543 Bleichenbacher's DSA attack.
4544 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
4545 to be set and top=0 forces the highest bit to be set; top=-1 is new
4546 and leaves the highest bit random.
4547 [Ulf Moeller, Bodo Moeller]
4549 *) In the NCONF_...-based implementations for CONF_... queries
4550 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
4551 a temporary CONF structure with the data component set to NULL
4552 (which gives segmentation faults in lh_retrieve).
4553 Instead, use NULL for the CONF pointer in CONF_get_string and
4554 CONF_get_number (which may use environment variables) and directly
4555 return NULL from CONF_get_section.
4558 *) Fix potential buffer overrun for EBCDIC.
4561 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
4562 keyUsage if basicConstraints absent for a CA.
4565 *) Make SMIME_write_PKCS7() write mail header values with a format that
4566 is more generally accepted (no spaces before the semicolon), since
4567 some programs can't parse those values properly otherwise. Also make
4568 sure BIO's that break lines after each write do not create invalid
4572 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
4573 macros previously used would not encode an empty SEQUENCE OF
4574 and break the signature.
4576 [This change does not apply to 0.9.7.]
4578 *) Zero the premaster secret after deriving the master secret in
4582 *) Add some EVP_add_digest_alias registrations (as found in
4583 OpenSSL_add_all_digests()) to SSL_library_init()
4584 aka OpenSSL_add_ssl_algorithms(). This provides improved
4585 compatibility with peers using X.509 certificates
4586 with unconventional AlgorithmIdentifier OIDs.
4589 *) Fix for Irix with NO_ASM.
4590 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4592 *) ./config script fixes.
4593 [Ulf Moeller, Richard Levitte]
4595 *) Fix 'openssl passwd -1'.
4598 *) Change PKCS12_key_gen_asc() so it can cope with non null
4599 terminated strings whose length is passed in the passlen
4600 parameter, for example from PEM callbacks. This was done
4601 by adding an extra length parameter to asc2uni().
4602 [Steve Henson, reported by <oddissey@samsung.co.kr>]
4604 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
4605 call failed, free the DSA structure.
4608 *) Fix to uni2asc() to cope with zero length Unicode strings.
4609 These are present in some PKCS#12 files.
4612 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
4613 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
4614 when writing a 32767 byte record.
4615 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
4617 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
4618 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
4620 (RSA objects have a reference count access to which is protected
4621 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
4622 so they are meant to be shared between threads.)
4623 [Bodo Moeller, Geoff Thorpe; original patch submitted by
4624 "Reddie, Steven" <Steven.Reddie@ca.com>]
4626 *) Fix a deadlock in CRYPTO_mem_leaks().
4629 *) Use better test patterns in bntest.
4632 *) rand_win.c fix for Borland C.
4635 *) BN_rshift bugfix for n == 0.
4638 *) Add a 'bctest' script that checks for some known 'bc' bugs
4639 so that 'make test' does not abort just because 'bc' is broken.
4642 *) Store verify_result within SSL_SESSION also for client side to
4643 avoid potential security hole. (Re-used sessions on the client side
4644 always resulted in verify_result==X509_V_OK, not using the original
4645 result of the server certificate verification.)
4648 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
4649 SSL3_RT_APPLICATION_DATA, return 0.
4650 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
4654 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
4655 releases, have been re-implemented by renaming the previous
4656 implementations of ssl2_read and ssl3_read to ssl2_read_internal
4657 and ssl3_read_internal, respectively, and adding 'peek' parameters
4658 to them. The new ssl[23]_{read,peek} functions are calls to
4659 ssl[23]_read_internal with the 'peek' flag set appropriately.
4660 A 'peek' parameter has also been added to ssl3_read_bytes, which
4661 does the actual work for ssl3_read_internal.
4664 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
4665 the method-specific "init()" handler. Also clean up ex_data after
4666 calling the method-specific "finish()" handler. Previously, this was
4667 happening the other way round.
4670 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
4671 The previous value, 12, was not always sufficient for BN_mod_exp().
4674 *) Make sure that shared libraries get the internal name engine with
4675 the full version number and not just 0. This should mark the
4676 shared libraries as not backward compatible. Of course, this should
4677 be changed again when we can guarantee backward binary compatibility.
4680 *) Fix typo in get_cert_by_subject() in by_dir.c
4681 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
4683 *) Rework the system to generate shared libraries:
4685 - Make note of the expected extension for the shared libraries and
4686 if there is a need for symbolic links from for example libcrypto.so.0
4687 to libcrypto.so.0.9.7. There is extended info in Configure for
4690 - Make as few rebuilds of the shared libraries as possible.
4692 - Still avoid linking the OpenSSL programs with the shared libraries.
4694 - When installing, install the shared libraries separately from the
4698 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
4700 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
4701 and not in SSL_clear because the latter is also used by the
4702 accept/connect functions; previously, the settings made by
4703 SSL_set_read_ahead would be lost during the handshake.
4704 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
4706 *) Correct util/mkdef.pl to be selective about disabled algorithms.
4707 Previously, it would create entries for disableed algorithms no
4711 *) Added several new manual pages for SSL_* function.
4714 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
4716 *) In ssl23_get_client_hello, generate an error message when faced
4717 with an initial SSL 3.0/TLS record that is too small to contain the
4718 first two bytes of the ClientHello message, i.e. client_version.
4719 (Note that this is a pathologic case that probably has never happened
4720 in real life.) The previous approach was to use the version number
4721 from the record header as a substitute; but our protocol choice
4722 should not depend on that one because it is not authenticated
4723 by the Finished messages.
4726 *) More robust randomness gathering functions for Windows.
4727 [Jeffrey Altman <jaltman@columbia.edu>]
4729 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
4730 not set then we don't setup the error code for issuer check errors
4731 to avoid possibly overwriting other errors which the callback does
4732 handle. If an application does set the flag then we assume it knows
4733 what it is doing and can handle the new informational codes
4737 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
4738 a general "ANY" type, as such it should be able to decode anything
4739 including tagged types. However it didn't check the class so it would
4740 wrongly interpret tagged types in the same way as their universal
4741 counterpart and unknown types were just rejected. Changed so that the
4742 tagged and unknown types are handled in the same way as a SEQUENCE:
4743 that is the encoding is stored intact. There is also a new type
4744 "V_ASN1_OTHER" which is used when the class is not universal, in this
4745 case we have no idea what the actual type is so we just lump them all
4749 *) On VMS, stdout may very well lead to a file that is written to
4750 in a record-oriented fashion. That means that every write() will
4751 write a separate record, which will be read separately by the
4752 programs trying to read from it. This can be very confusing.
4754 The solution is to put a BIO filter in the way that will buffer
4755 text until a linefeed is reached, and then write everything a
4756 line at a time, so every record written will be an actual line,
4757 not chunks of lines and not (usually doesn't happen, but I've
4758 seen it once) several lines in one record. BIO_f_linebuffer() is
4761 Currently, it's a VMS-only method, because that's where it has
4762 been tested well enough.
4765 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
4766 it can return incorrect results.
4767 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
4768 but it was in 0.9.6-beta[12].)
4771 *) Disable the check for content being present when verifying detached
4772 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
4773 include zero length content when signing messages.
4776 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
4777 BIO_ctrl (for BIO pairs).
4780 *) Add DSO method for VMS.
4783 *) Bug fix: Montgomery multiplication could produce results with the
4787 *) Add RPM specification openssl.spec and modify it to build three
4788 packages. The default package contains applications, application
4789 documentation and run-time libraries. The devel package contains
4790 include files, static libraries and function documentation. The
4791 doc package contains the contents of the doc directory. The original
4792 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
4795 *) Add a large number of documentation files for many SSL routines.
4796 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
4798 *) Add a configuration entry for Sony News 4.
4799 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
4801 *) Don't set the two most significant bits to one when generating a
4802 random number < q in the DSA library.
4805 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
4806 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
4807 the underlying transport is blocking) if a handshake took place.
4808 (The default behaviour is needed by applications such as s_client
4809 and s_server that use select() to determine when to use SSL_read;
4810 but for applications that know in advance when to expect data, it
4811 just makes things more complicated.)
4814 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
4818 *) Add a few more EBCDIC conditionals that make `req' and `x509'
4819 work better on such systems.
4820 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
4822 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
4823 Update PKCS12_parse() so it copies the friendlyName and the
4824 keyid to the certificates aux info.
4827 *) Fix bug in PKCS7_verify() which caused an infinite loop
4828 if there was more than one signature.
4829 [Sven Uszpelkat <su@celocom.de>]
4831 *) Major change in util/mkdef.pl to include extra information
4832 about each symbol, as well as presentig variables as well
4833 as functions. This change means that there's n more need
4834 to rebuild the .num files when some algorithms are excluded.
4837 *) Allow the verify time to be set by an application,
4838 rather than always using the current time.
4841 *) Phase 2 verify code reorganisation. The certificate
4842 verify code now looks up an issuer certificate by a
4843 number of criteria: subject name, authority key id
4844 and key usage. It also verifies self signed certificates
4845 by the same criteria. The main comparison function is
4846 X509_check_issued() which performs these checks.
4848 Lot of changes were necessary in order to support this
4849 without completely rewriting the lookup code.
4851 Authority and subject key identifier are now cached.
4853 The LHASH 'certs' is X509_STORE has now been replaced
4854 by a STACK_OF(X509_OBJECT). This is mainly because an
4855 LHASH can't store or retrieve multiple objects with
4856 the same hash value.
4858 As a result various functions (which were all internal
4859 use only) have changed to handle the new X509_STORE
4860 structure. This will break anything that messed round
4861 with X509_STORE internally.
4863 The functions X509_STORE_add_cert() now checks for an
4864 exact match, rather than just subject name.
4866 The X509_STORE API doesn't directly support the retrieval
4867 of multiple certificates matching a given criteria, however
4868 this can be worked round by performing a lookup first
4869 (which will fill the cache with candidate certificates)
4870 and then examining the cache for matches. This is probably
4871 the best we can do without throwing out X509_LOOKUP
4872 entirely (maybe later...).
4874 The X509_VERIFY_CTX structure has been enhanced considerably.
4876 All certificate lookup operations now go via a get_issuer()
4877 callback. Although this currently uses an X509_STORE it
4878 can be replaced by custom lookups. This is a simple way
4879 to bypass the X509_STORE hackery necessary to make this
4880 work and makes it possible to use more efficient techniques
4881 in future. A very simple version which uses a simple
4882 STACK for its trusted certificate store is also provided
4883 using X509_STORE_CTX_trusted_stack().
4885 The verify_cb() and verify() callbacks now have equivalents
4886 in the X509_STORE_CTX structure.
4888 X509_STORE_CTX also has a 'flags' field which can be used
4889 to customise the verify behaviour.
4892 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
4893 excludes S/MIME capabilities.
4896 *) When a certificate request is read in keep a copy of the
4897 original encoding of the signed data and use it when outputing
4898 again. Signatures then use the original encoding rather than
4899 a decoded, encoded version which may cause problems if the
4900 request is improperly encoded.
4903 *) For consistency with other BIO_puts implementations, call
4904 buffer_write(b, ...) directly in buffer_puts instead of calling
4907 In BIO_puts, increment b->num_write as in BIO_write.
4908 [Peter.Sylvester@EdelWeb.fr]
4910 *) Fix BN_mul_word for the case where the word is 0. (We have to use
4911 BN_zero, we may not return a BIGNUM with an array consisting of
4915 *) Avoid calling abort() from within the library when problems are
4916 detected, except if preprocessor symbols have been defined
4917 (such as REF_CHECK, BN_DEBUG etc.).
4920 *) New openssl application 'rsautl'. This utility can be
4921 used for low level RSA operations. DER public key
4922 BIO/fp routines also added.
4925 *) New Configure entry and patches for compiling on QNX 4.
4926 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
4928 *) A demo state-machine implementation was sponsored by
4929 Nuron (http://www.nuron.com/) and is now available in
4930 demos/state_machine.
4933 *) New options added to the 'dgst' utility for signature
4934 generation and verification.
4937 *) Unrecognized PKCS#7 content types are now handled via a
4938 catch all ASN1_TYPE structure. This allows unsupported
4939 types to be stored as a "blob" and an application can
4940 encode and decode it manually.
4943 *) Fix various signed/unsigned issues to make a_strex.c
4945 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
4947 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
4948 length if passed a buffer. ASN1_INTEGER_to_BN failed
4949 if passed a NULL BN and its argument was negative.
4950 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
4952 *) Modification to PKCS#7 encoding routines to output definite
4953 length encoding. Since currently the whole structures are in
4954 memory there's not real point in using indefinite length
4955 constructed encoding. However if OpenSSL is compiled with
4956 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
4959 *) Added BIO_vprintf() and BIO_vsnprintf().
4962 *) Added more prefixes to parse for in the the strings written
4963 through a logging bio, to cover all the levels that are available
4964 through syslog. The prefixes are now:
4966 PANIC, EMERG, EMR => LOG_EMERG
4967 ALERT, ALR => LOG_ALERT
4968 CRIT, CRI => LOG_CRIT
4969 ERROR, ERR => LOG_ERR
4970 WARNING, WARN, WAR => LOG_WARNING
4971 NOTICE, NOTE, NOT => LOG_NOTICE
4972 INFO, INF => LOG_INFO
4973 DEBUG, DBG => LOG_DEBUG
4975 and as before, if none of those prefixes are present at the
4976 beginning of the string, LOG_ERR is chosen.
4978 On Win32, the LOG_* levels are mapped according to this:
4980 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
4981 LOG_WARNING => EVENTLOG_WARNING_TYPE
4982 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
4986 *) Made it possible to reconfigure with just the configuration
4987 argument "reconf" or "reconfigure". The command line arguments
4988 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
4989 and are retrieved from there when reconfiguring.
4993 [Assar Westerlund <assar@sics.se>, Richard Levitte]
4995 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
4998 *) The obj_dat.pl script was messing up the sorting of object
4999 names. The reason was that it compared the quoted version
5000 of strings as a result "OCSP" > "OCSP Signing" because
5001 " > SPACE. Changed script to store unquoted versions of
5002 names and add quotes on output. It was also omitting some
5003 names from the lookup table if they were given a default
5004 value (that is if SN is missing it is given the same
5005 value as LN and vice versa), these are now added on the
5006 grounds that if an object has a name we should be able to
5007 look it up. Finally added warning output when duplicate
5008 short or long names are found.
5011 *) Changes needed for Tandem NSK.
5012 [Scott Uroff <scott@xypro.com>]
5014 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
5015 RSA_padding_check_SSLv23(), special padding was never detected
5016 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
5017 version rollback attacks was not effective.
5019 In s23_clnt.c, don't use special rollback-attack detection padding
5020 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
5021 client; similarly, in s23_srvr.c, don't do the rollback check if
5022 SSL 2.0 is the only protocol enabled in the server.
5025 *) Make it possible to get hexdumps of unprintable data with 'openssl
5026 asn1parse'. By implication, the functions ASN1_parse_dump() and
5027 BIO_dump_indent() are added.
5030 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
5031 these print out strings and name structures based on various
5032 flags including RFC2253 support and proper handling of
5033 multibyte characters. Added options to the 'x509' utility
5034 to allow the various flags to be set.
5037 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
5038 Also change the functions X509_cmp_current_time() and
5039 X509_gmtime_adj() work with an ASN1_TIME structure,
5040 this will enable certificates using GeneralizedTime in validity
5041 dates to be checked.
5044 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
5045 negative public key encodings) on by default,
5046 NO_NEG_PUBKEY_BUG can be set to disable it.
5049 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
5050 content octets. An i2c_ASN1_OBJECT is unnecessary because
5051 the encoding can be trivially obtained from the structure.
5054 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
5055 not read locks (CRYPTO_r_[un]lock).
5058 *) A first attempt at creating official support for shared
5059 libraries through configuration. I've kept it so the
5060 default is static libraries only, and the OpenSSL programs
5061 are always statically linked for now, but there are
5062 preparations for dynamic linking in place.
5063 This has been tested on Linux and Tru64.
5066 *) Randomness polling function for Win9x, as described in:
5067 Peter Gutmann, Software Generation of Practically Strong
5071 *) Fix so PRNG is seeded in req if using an already existing
5075 *) New options to smime application. -inform and -outform
5076 allow alternative formats for the S/MIME message including
5077 PEM and DER. The -content option allows the content to be
5078 specified separately. This should allow things like Netscape
5079 form signing output easier to verify.
5082 *) Fix the ASN1 encoding of tags using the 'long form'.
5085 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
5086 STRING types. These convert content octets to and from the
5087 underlying type. The actual tag and length octets are
5088 already assumed to have been read in and checked. These
5089 are needed because all other string types have virtually
5090 identical handling apart from the tag. By having versions
5091 of the ASN1 functions that just operate on content octets
5092 IMPLICIT tagging can be handled properly. It also allows
5093 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
5094 and ASN1_INTEGER are identical apart from the tag.
5097 *) Change the handling of OID objects as follows:
5099 - New object identifiers are inserted in objects.txt, following
5100 the syntax given in objects.README.
5101 - objects.pl is used to process obj_mac.num and create a new
5103 - obj_dat.pl is used to create a new obj_dat.h, using the data in
5106 This is currently kind of a hack, and the perl code in objects.pl
5107 isn't very elegant, but it works as I intended. The simplest way
5108 to check that it worked correctly is to look in obj_dat.h and
5109 check the array nid_objs and make sure the objects haven't moved
5110 around (this is important!). Additions are OK, as well as
5111 consistent name changes.
5114 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
5117 *) Addition of the command line parameter '-rand file' to 'openssl req'.
5118 The given file adds to whatever has already been seeded into the
5119 random pool through the RANDFILE configuration file option or
5120 environment variable, or the default random state file.
5123 *) mkstack.pl now sorts each macro group into lexical order.
5124 Previously the output order depended on the order the files
5125 appeared in the directory, resulting in needless rewriting
5129 *) Patches to make OpenSSL compile under Win32 again. Mostly
5130 work arounds for the VC++ problem that it treats func() as
5131 func(void). Also stripped out the parts of mkdef.pl that
5132 added extra typesafe functions: these no longer exist.
5135 *) Reorganisation of the stack code. The macros are now all
5136 collected in safestack.h . Each macro is defined in terms of
5137 a "stack macro" of the form SKM_<name>(type, a, b). The
5138 DEBUG_SAFESTACK is now handled in terms of function casts,
5139 this has the advantage of retaining type safety without the
5140 use of additional functions. If DEBUG_SAFESTACK is not defined
5141 then the non typesafe macros are used instead. Also modified the
5142 mkstack.pl script to handle the new form. Needs testing to see
5143 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
5144 the default if no major problems. Similar behaviour for ASN1_SET_OF
5145 and PKCS12_STACK_OF.
5148 *) When some versions of IIS use the 'NET' form of private key the
5149 key derivation algorithm is different. Normally MD5(password) is
5150 used as a 128 bit RC4 key. In the modified case
5151 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
5152 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
5153 as the old Netscape_RSA functions except they have an additional
5154 'sgckey' parameter which uses the modified algorithm. Also added
5155 an -sgckey command line option to the rsa utility. Thanks to
5156 Adrian Peck <bertie@ncipher.com> for posting details of the modified
5157 algorithm to openssl-dev.
5160 *) The evp_local.h macros were using 'c.##kname' which resulted in
5161 invalid expansion on some systems (SCO 5.0.5 for example).
5162 Corrected to 'c.kname'.
5163 [Phillip Porch <root@theporch.com>]
5165 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
5166 a STACK of email addresses from a certificate or request, these look
5167 in the subject name and the subject alternative name extensions and
5168 omit any duplicate addresses.
5171 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
5172 This makes DSA verification about 2 % faster.
5175 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
5176 (meaning that now 2^5 values will be precomputed, which is only 4 KB
5177 plus overhead for 1024 bit moduli).
5178 This makes exponentiations about 0.5 % faster for 1024 bit
5179 exponents (as measured by "openssl speed rsa2048").
5182 *) Rename memory handling macros to avoid conflicts with other
5184 Malloc => OPENSSL_malloc
5185 Malloc_locked => OPENSSL_malloc_locked
5186 Realloc => OPENSSL_realloc
5187 Free => OPENSSL_free
5190 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
5191 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
5194 *) CygWin32 support.
5195 [John Jarvie <jjarvie@newsguy.com>]
5197 *) The type-safe stack code has been rejigged. It is now only compiled
5198 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
5199 by default all type-specific stack functions are "#define"d back to
5200 standard stack functions. This results in more streamlined output
5201 but retains the type-safety checking possibilities of the original
5205 *) The STACK code has been cleaned up, and certain type declarations
5206 that didn't make a lot of sense have been brought in line. This has
5207 also involved a cleanup of sorts in safestack.h to more correctly
5208 map type-safe stack functions onto their plain stack counterparts.
5209 This work has also resulted in a variety of "const"ifications of
5210 lots of the code, especially "_cmp" operations which should normally
5211 be prototyped with "const" parameters anyway.
5214 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
5215 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
5216 (The PRNG state consists of two parts, the large pool 'state' and 'md',
5217 where all of 'md' is used each time the PRNG is used, but 'state'
5218 is used only indexed by a cyclic counter. As entropy may not be
5219 well distributed from the beginning, 'md' is important as a
5220 chaining variable. However, the output function chains only half
5221 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
5222 all of 'md', and seeding with STATE_SIZE dummy bytes will result
5223 in all of 'state' being rewritten, with the new values depending
5224 on virtually all of 'md'. This overcomes the 80 bit limitation.)
5227 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
5228 the handshake is continued after ssl_verify_cert_chain();
5229 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
5230 can lead to 'unexplainable' connection aborts later.
5231 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
5233 *) Major EVP API cipher revision.
5234 Add hooks for extra EVP features. This allows various cipher
5235 parameters to be set in the EVP interface. Support added for variable
5236 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
5237 setting of RC2 and RC5 parameters.
5239 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
5242 Remove lots of duplicated code from the EVP library. For example *every*
5243 cipher init() function handles the 'iv' in the same way according to the
5244 cipher mode. They also all do nothing if the 'key' parameter is NULL and
5245 for CFB and OFB modes they zero ctx->num.
5247 New functionality allows removal of S/MIME code RC2 hack.
5249 Most of the routines have the same form and so can be declared in terms
5252 By shifting this to the top level EVP_CipherInit() it can be removed from
5253 all individual ciphers. If the cipher wants to handle IVs or keys
5254 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
5257 Change lots of functions like EVP_EncryptUpdate() to now return a
5258 value: although software versions of the algorithms cannot fail
5259 any installed hardware versions can.
5262 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
5263 this option is set, tolerate broken clients that send the negotiated
5264 protocol version number instead of the requested protocol version
5268 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
5269 i.e. non-zero for export ciphersuites, zero otherwise.
5270 Previous versions had this flag inverted, inconsistent with
5271 rsa_tmp_cb (..._TMP_RSA_CB).
5272 [Bodo Moeller; problem reported by Amit Chopra]
5274 *) Add missing DSA library text string. Work around for some IIS
5275 key files with invalid SEQUENCE encoding.
5278 *) Add a document (doc/standards.txt) that list all kinds of standards
5279 and so on that are implemented in OpenSSL.
5282 *) Enhance c_rehash script. Old version would mishandle certificates
5283 with the same subject name hash and wouldn't handle CRLs at all.
5284 Added -fingerprint option to crl utility, to support new c_rehash
5288 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
5291 *) Fix for SSL server purpose checking. Server checking was
5292 rejecting certificates which had extended key usage present
5293 but no ssl client purpose.
5294 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
5296 *) Make PKCS#12 code work with no password. The PKCS#12 spec
5297 is a little unclear about how a blank password is handled.
5298 Since the password in encoded as a BMPString with terminating
5299 double NULL a zero length password would end up as just the
5300 double NULL. However no password at all is different and is
5301 handled differently in the PKCS#12 key generation code. NS
5302 treats a blank password as zero length. MSIE treats it as no
5303 password on export: but it will try both on import. We now do
5304 the same: PKCS12_parse() tries zero length and no password if
5305 the password is set to "" or NULL (NULL is now a valid password:
5306 it wasn't before) as does the pkcs12 application.
5309 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
5310 perror when PEM_read_bio_X509_REQ fails, the error message must
5311 be obtained from the error queue.
5314 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
5315 it in ERR_remove_state if appropriate, and change ERR_get_state
5316 accordingly to avoid race conditions (this is necessary because
5317 thread_hash is no longer constant once set).
5320 *) Bugfix for linux-elf makefile.one.
5323 *) RSA_get_default_method() will now cause a default
5324 RSA_METHOD to be chosen if one doesn't exist already.
5325 Previously this was only set during a call to RSA_new()
5326 or RSA_new_method(NULL) meaning it was possible for
5327 RSA_get_default_method() to return NULL.
5330 *) Added native name translation to the existing DSO code
5331 that will convert (if the flag to do so is set) filenames
5332 that are sufficiently small and have no path information
5333 into a canonical native form. Eg. "blah" converted to
5334 "libblah.so" or "blah.dll" etc.
5337 *) New function ERR_error_string_n(e, buf, len) which is like
5338 ERR_error_string(e, buf), but writes at most 'len' bytes
5339 including the 0 terminator. For ERR_error_string_n, 'buf'
5341 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
5343 *) CONF library reworked to become more general. A new CONF
5344 configuration file reader "class" is implemented as well as a
5345 new functions (NCONF_*, for "New CONF") to handle it. The now
5346 old CONF_* functions are still there, but are reimplemented to
5347 work in terms of the new functions. Also, a set of functions
5348 to handle the internal storage of the configuration data is
5349 provided to make it easier to write new configuration file
5350 reader "classes" (I can definitely see something reading a
5351 configuration file in XML format, for example), called _CONF_*,
5352 or "the configuration storage API"...
5354 The new configuration file reading functions are:
5356 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
5357 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
5359 NCONF_default, NCONF_WIN32
5361 NCONF_dump_fp, NCONF_dump_bio
5363 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
5364 NCONF_new creates a new CONF object. This works in the same way
5365 as other interfaces in OpenSSL, like the BIO interface.
5366 NCONF_dump_* dump the internal storage of the configuration file,
5367 which is useful for debugging. All other functions take the same
5368 arguments as the old CONF_* functions wth the exception of the
5369 first that must be a `CONF *' instead of a `LHASH *'.
5371 To make it easer to use the new classes with the old CONF_* functions,
5372 the function CONF_set_default_method is provided.
5375 *) Add '-tls1' option to 'openssl ciphers', which was already
5376 mentioned in the documentation but had not been implemented.
5377 (This option is not yet really useful because even the additional
5378 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
5381 *) Initial DSO code added into libcrypto for letting OpenSSL (and
5382 OpenSSL-based applications) load shared libraries and bind to
5383 them in a portable way.
5384 [Geoff Thorpe, with contributions from Richard Levitte]
5386 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
5388 *) Make sure _lrotl and _lrotr are only used with MSVC.
5390 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
5391 (the default implementation of RAND_status).
5393 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
5394 to '-clrext' (= clear extensions), as intended and documented.
5395 [Bodo Moeller; inconsistency pointed out by Michael Attili
5398 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
5399 was larger than the MD block size.
5400 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
5402 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
5403 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
5404 using the passed key: if the passed key was a private key the result
5405 of X509_print(), for example, would be to print out all the private key
5409 *) des_quad_cksum() byte order bug fix.
5410 [Ulf Möller, using the problem description in krb4-0.9.7, where
5411 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
5413 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
5415 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
5417 *) For easily testing in shell scripts whether some command
5418 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
5419 returns with exit code 0 iff no command of the given name is available.
5420 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
5421 the output goes to stdout and nothing is printed to stderr.
5422 Additional arguments are always ignored.
5424 Since for each cipher there is a command of the same name,
5425 the 'no-cipher' compilation switches can be tested this way.
5427 ('openssl no-XXX' is not able to detect pseudo-commands such
5428 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
5431 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
5434 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
5435 is set; it will be thrown away anyway because each handshake creates
5437 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
5438 to parameters -- in previous versions (since OpenSSL 0.9.3) the
5439 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
5440 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
5443 *) New s_client option -ign_eof: EOF at stdin is ignored, and
5444 'Q' and 'R' lose their special meanings (quit/renegotiate).
5445 This is part of what -quiet does; unlike -quiet, -ign_eof
5446 does not suppress any output.
5449 *) Add compatibility options to the purpose and trust code. The
5450 purpose X509_PURPOSE_ANY is "any purpose" which automatically
5451 accepts a certificate or CA, this was the previous behaviour,
5452 with all the associated security issues.
5454 X509_TRUST_COMPAT is the old trust behaviour: only and
5455 automatically trust self signed roots in certificate store. A
5456 new trust setting X509_TRUST_DEFAULT is used to specify that
5457 a purpose has no associated trust setting and it should instead
5458 use the value in the default purpose.
5461 *) Fix the PKCS#8 DSA private key code so it decodes keys again
5462 and fix a memory leak.
5465 *) In util/mkerr.pl (which implements 'make errors'), preserve
5466 reason strings from the previous version of the .c file, as
5467 the default to have only downcase letters (and digits) in
5468 automatically generated reasons codes is not always appropriate.
5471 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
5472 using strerror. Previously, ERR_reason_error_string() returned
5473 library names as reason strings for SYSerr; but SYSerr is a special
5474 case where small numbers are errno values, not library numbers.
5477 *) Add '-dsaparam' option to 'openssl dhparam' application. This
5478 converts DSA parameters into DH parameters. (When creating parameters,
5479 DSA_generate_parameters is used.)
5482 *) Include 'length' (recommended exponent length) in C code generated
5483 by 'openssl dhparam -C'.
5486 *) The second argument to set_label in perlasm was already being used
5487 so couldn't be used as a "file scope" flag. Moved to third argument
5491 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
5492 instead of RAND_bytes for encryption IVs and salts.
5495 *) Include RAND_status() into RAND_METHOD instead of implementing
5496 it only for md_rand.c Otherwise replacing the PRNG by calling
5497 RAND_set_rand_method would be impossible.
5500 *) Don't let DSA_generate_key() enter an infinite loop if the random
5501 number generation fails.
5504 *) New 'rand' application for creating pseudo-random output.
5507 *) Added configuration support for Linux/IA64
5508 [Rolf Haberrecker <rolf@suse.de>]
5510 *) Assembler module support for Mingw32.
5513 *) Shared library support for HPUX (in shlib/).
5514 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
5516 *) Shared library support for Solaris gcc.
5517 [Lutz Behnke <behnke@trustcenter.de>]
5519 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
5521 *) PKCS7_encrypt() was adding text MIME headers twice because they
5522 were added manually and by SMIME_crlf_copy().
5525 *) In bntest.c don't call BN_rand with zero bits argument.
5526 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
5528 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
5529 case was implemented. This caused BN_div_recp() to fail occasionally.
5532 *) Add an optional second argument to the set_label() in the perl
5533 assembly language builder. If this argument exists and is set
5534 to 1 it signals that the assembler should use a symbol whose
5535 scope is the entire file, not just the current function. This
5536 is needed with MASM which uses the format label:: for this scope.
5537 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
5539 *) Change the ASN1 types so they are typedefs by default. Before
5540 almost all types were #define'd to ASN1_STRING which was causing
5541 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
5545 *) Change names of new functions to the new get1/get0 naming
5546 convention: After 'get1', the caller owns a reference count
5547 and has to call ..._free; 'get0' returns a pointer to some
5548 data structure without incrementing reference counters.
5549 (Some of the existing 'get' functions increment a reference
5550 counter, some don't.)
5551 Similarly, 'set1' and 'add1' functions increase reference
5552 counters or duplicate objects.
5555 *) Allow for the possibility of temp RSA key generation failure:
5556 the code used to assume it always worked and crashed on failure.
5559 *) Fix potential buffer overrun problem in BIO_printf().
5560 [Ulf Möller, using public domain code by Patrick Powell; problem
5561 pointed out by David Sacerdote <das33@cornell.edu>]
5563 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
5564 RAND_egd() and RAND_status(). In the command line application,
5565 the EGD socket can be specified like a seed file using RANDFILE
5569 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
5570 Some CAs (e.g. Verisign) distribute certificates in this form.
5573 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
5574 list to exclude them. This means that no special compilation option
5575 is needed to use anonymous DH: it just needs to be included in the
5579 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
5580 EVP_MD_type. The old functionality is available in a new macro called
5581 EVP_MD_md(). Change code that uses it and update docs.
5584 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
5585 where the 'void *' argument is replaced by a function pointer argument.
5586 Previously 'void *' was abused to point to functions, which works on
5587 many platforms, but is not correct. As these functions are usually
5588 called by macros defined in OpenSSL header files, most source code
5589 should work without changes.
5592 *) <openssl/opensslconf.h> (which is created by Configure) now contains
5593 sections with information on -D... compiler switches used for
5594 compiling the library so that applications can see them. To enable
5595 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
5596 must be defined. E.g.,
5597 #define OPENSSL_ALGORITHM_DEFINES
5598 #include <openssl/opensslconf.h>
5599 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
5600 [Richard Levitte, Ulf and Bodo Möller]
5602 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
5606 *) Change the 'other' type in certificate aux info to a STACK_OF
5607 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
5608 the required ASN1 format: arbitrary types determined by an OID.
5611 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
5612 argument to 'req'. This is not because the function is newer or
5613 better than others it just uses the work 'NEW' in the certificate
5614 request header lines. Some software needs this.
5617 *) Reorganise password command line arguments: now passwords can be
5618 obtained from various sources. Delete the PEM_cb function and make
5619 it the default behaviour: i.e. if the callback is NULL and the
5620 usrdata argument is not NULL interpret it as a null terminated pass
5621 phrase. If usrdata and the callback are NULL then the pass phrase
5622 is prompted for as usual.
5625 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
5626 the support is automatically enabled. The resulting binaries will
5627 autodetect the card and use it if present.
5628 [Ben Laurie and Compaq Inc.]
5630 *) Work around for Netscape hang bug. This sends certificate request
5631 and server done in one record. Since this is perfectly legal in the
5632 SSL/TLS protocol it isn't a "bug" option and is on by default. See
5633 the bugs/SSLv3 entry for more info.
5636 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
5639 *) Add -rand argument to smime and pkcs12 applications and read/write
5643 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
5646 *) Add command line password options to the remaining applications.
5649 *) Bug fix for BN_div_recp() for numerators with an even number of
5653 *) More tests in bntest.c, and changed test_bn output.
5656 *) ./config recognizes MacOS X now.
5659 *) Bug fix for BN_div() when the first words of num and divsor are
5660 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
5663 *) Add support for various broken PKCS#8 formats, and command line
5664 options to produce them.
5667 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
5668 get temporary BIGNUMs from a BN_CTX.
5671 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
5675 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
5676 include a #define from the old name to the new. The original intent
5677 was that statically linked binaries could for example just call
5678 SSLeay_add_all_ciphers() to just add ciphers to the table and not
5679 link with digests. This never worked becayse SSLeay_add_all_digests()
5680 and SSLeay_add_all_ciphers() were in the same source file so calling
5681 one would link with the other. They are now in separate source files.
5684 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
5687 *) Use a less unusual form of the Miller-Rabin primality test (it used
5688 a binary algorithm for exponentiation integrated into the Miller-Rabin
5689 loop, our standard modexp algorithms are faster).
5692 *) Support for the EBCDIC character set completed.
5693 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
5695 *) Source code cleanups: use const where appropriate, eliminate casts,
5696 use void * instead of char * in lhash.
5699 *) Bugfix: ssl3_send_server_key_exchange was not restartable
5700 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
5701 this the server could overwrite ephemeral keys that the client
5705 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
5706 using 50 iterations of the Rabin-Miller test.
5708 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
5709 iterations of the Rabin-Miller test as required by the appendix
5710 to FIPS PUB 186[-1]) instead of DSA_is_prime.
5711 As BN_is_prime_fasttest includes trial division, DSA parameter
5712 generation becomes much faster.
5714 This implies a change for the callback functions in DSA_is_prime
5715 and DSA_generate_parameters: The callback function is called once
5716 for each positive witness in the Rabin-Miller test, not just
5717 occasionally in the inner loop; and the parameters to the
5718 callback function now provide an iteration count for the outer
5719 loop rather than for the current invocation of the inner loop.
5720 DSA_generate_parameters additionally can call the callback
5721 function with an 'iteration count' of -1, meaning that a
5722 candidate has passed the trial division test (when q is generated
5723 from an application-provided seed, trial division is skipped).
5726 *) New function BN_is_prime_fasttest that optionally does trial
5727 division before starting the Rabin-Miller test and has
5728 an additional BN_CTX * argument (whereas BN_is_prime always
5729 has to allocate at least one BN_CTX).
5730 'callback(1, -1, cb_arg)' is called when a number has passed the
5731 trial division stage.
5734 *) Fix for bug in CRL encoding. The validity dates weren't being handled
5738 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
5741 *) New function BN_pseudo_rand().
5744 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
5745 bignum version of BN_from_montgomery() with the working code from
5746 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
5750 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
5751 made it impossible to use the same SSL_SESSION data structure in
5752 SSL2 clients in multiple threads.
5755 *) The return value of RAND_load_file() no longer counts bytes obtained
5756 by stat(). RAND_load_file(..., -1) is new and uses the complete file
5757 to seed the PRNG (previously an explicit byte count was required).
5758 [Ulf Möller, Bodo Möller]
5760 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
5761 used (char *) instead of (void *) and had casts all over the place.
5764 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
5767 *) Retain source code compatibility for BN_prime_checks macro:
5768 BN_is_prime(..., BN_prime_checks, ...) now uses
5769 BN_prime_checks_for_size to determine the appropriate number of
5770 Rabin-Miller iterations.
5773 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
5774 DH_CHECK_P_NOT_SAFE_PRIME.
5775 (Check if this is true? OpenPGP calls them "strong".)
5778 *) Merge the functionality of "dh" and "gendh" programs into a new program
5779 "dhparam". The old programs are retained for now but will handle DH keys
5780 (instead of parameters) in future.
5783 *) Make the ciphers, s_server and s_client programs check the return values
5784 when a new cipher list is set.
5787 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
5788 ciphers. Before when the 56bit ciphers were enabled the sorting was
5791 The syntax for the cipher sorting has been extended to support sorting by
5792 cipher-strength (using the strength_bits hard coded in the tables).
5793 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
5795 Fix a bug in the cipher-command parser: when supplying a cipher command
5796 string with an "undefined" symbol (neither command nor alphanumeric
5797 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
5798 an error is flagged.
5800 Due to the strength-sorting extension, the code of the
5801 ssl_create_cipher_list() function was completely rearranged. I hope that
5802 the readability was also increased :-)
5803 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5805 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
5806 for the first serial number and places 2 in the serial number file. This
5807 avoids problems when the root CA is created with serial number zero and
5808 the first user certificate has the same issuer name and serial number
5812 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
5813 the new code. Add documentation for this stuff.
5816 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
5817 X509_*() to X509at_*() on the grounds that they don't handle X509
5818 structures and behave in an analagous way to the X509v3 functions:
5819 they shouldn't be called directly but wrapper functions should be used
5822 So we also now have some wrapper functions that call the X509at functions
5823 when passed certificate requests. (TO DO: similar things can be done with
5824 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
5825 things. Some of these need some d2i or i2d and print functionality
5826 because they handle more complex structures.)
5829 *) Add missing #ifndefs that caused missing symbols when building libssl
5830 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
5831 NO_RSA in ssl/s2*.c.
5832 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
5834 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
5835 has a return value which indicates the quality of the random data
5836 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
5837 error queue. New function RAND_pseudo_bytes() generates output that is
5838 guaranteed to be unique but not unpredictable. RAND_add is like
5839 RAND_seed, but takes an extra argument for an entropy estimate
5840 (RAND_seed always assumes full entropy).
5843 *) Do more iterations of Rabin-Miller probable prime test (specifically,
5844 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
5845 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
5846 in crypto/bn/bn_prime.c for the complete table). This guarantees a
5847 false-positive rate of at most 2^-80 for random input.
5850 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
5853 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
5854 in the 0.9.5 release), this returns the chain
5855 from an X509_CTX structure with a dup of the stack and all
5856 the X509 reference counts upped: so the stack will exist
5857 after X509_CTX_cleanup() has been called. Modify pkcs12.c
5860 Also make SSL_SESSION_print() print out the verify return
5864 *) Add manpage for the pkcs12 command. Also change the default
5865 behaviour so MAC iteration counts are used unless the new
5866 -nomaciter option is used. This improves file security and
5867 only older versions of MSIE (4.0 for example) need it.
5870 *) Honor the no-xxx Configure options when creating .DEF files.
5873 *) Add PKCS#10 attributes to field table: challengePassword,
5874 unstructuredName and unstructuredAddress. These are taken from
5875 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
5876 international characters are used.
5878 More changes to X509_ATTRIBUTE code: allow the setting of types
5879 based on strings. Remove the 'loc' parameter when adding
5880 attributes because these will be a SET OF encoding which is sorted
5884 *) Initial changes to the 'req' utility to allow request generation
5885 automation. This will allow an application to just generate a template
5886 file containing all the field values and have req construct the
5889 Initial support for X509_ATTRIBUTE handling. Stacks of these are
5890 used all over the place including certificate requests and PKCS#7
5891 structures. They are currently handled manually where necessary with
5892 some primitive wrappers for PKCS#7. The new functions behave in a
5893 manner analogous to the X509 extension functions: they allow
5894 attributes to be looked up by NID and added.
5896 Later something similar to the X509V3 code would be desirable to
5897 automatically handle the encoding, decoding and printing of the
5898 more complex types. The string types like challengePassword can
5899 be handled by the string table functions.
5901 Also modified the multi byte string table handling. Now there is
5902 a 'global mask' which masks out certain types. The table itself
5903 can use the flag STABLE_NO_MASK to ignore the mask setting: this
5904 is useful when for example there is only one permissible type
5905 (as in countryName) and using the mask might result in no valid
5909 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
5910 SSL_get_peer_finished to allow applications to obtain the latest
5911 Finished messages sent to the peer or expected from the peer,
5912 respectively. (SSL_get_peer_finished is usually the Finished message
5913 actually received from the peer, otherwise the protocol will be aborted.)
5915 As the Finished message are message digests of the complete handshake
5916 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
5917 be used for external authentication procedures when the authentication
5918 provided by SSL/TLS is not desired or is not enough.
5921 *) Enhanced support for Alpha Linux is added. Now ./config checks if
5922 the host supports BWX extension and if Compaq C is present on the
5923 $PATH. Just exploiting of the BWX extension results in 20-30%
5924 performance kick for some algorithms, e.g. DES and RC4 to mention
5925 a couple. Compaq C in turn generates ~20% faster code for MD5 and
5929 *) Add support for MS "fast SGC". This is arguably a violation of the
5930 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
5931 weak crypto and after checking the certificate is SGC a second one
5932 with strong crypto. MS SGC stops the first handshake after receiving
5933 the server certificate message and sends a second client hello. Since
5934 a server will typically do all the time consuming operations before
5935 expecting any further messages from the client (server key exchange
5936 is the most expensive) there is little difference between the two.
5938 To get OpenSSL to support MS SGC we have to permit a second client
5939 hello message after we have sent server done. In addition we have to
5940 reset the MAC if we do get this second client hello.
5943 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
5944 if a DER encoded private key is RSA or DSA traditional format. Changed
5945 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
5946 format DER encoded private key. Newer code should use PKCS#8 format which
5947 has the key type encoded in the ASN1 structure. Added DER private key
5948 support to pkcs8 application.
5951 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
5952 ciphersuites has been selected (as required by the SSL 3/TLS 1
5953 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
5954 is set, we interpret this as a request to violate the specification
5955 (the worst that can happen is a handshake failure, and 'correct'
5956 behaviour would result in a handshake failure anyway).
5959 *) In SSL_CTX_add_session, take into account that there might be multiple
5960 SSL_SESSION structures with the same session ID (e.g. when two threads
5961 concurrently obtain them from an external cache).
5962 The internal cache can handle only one SSL_SESSION with a given ID,
5963 so if there's a conflict, we now throw out the old one to achieve
5967 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
5968 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
5969 some routines that use cipher OIDs: some ciphers do not have OIDs
5970 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
5974 *) Simplify the trust setting structure and code. Now we just have
5975 two sequences of OIDs for trusted and rejected settings. These will
5976 typically have values the same as the extended key usage extension
5977 and any application specific purposes.
5979 The trust checking code now has a default behaviour: it will just
5980 check for an object with the same NID as the passed id. Functions can
5981 be provided to override either the default behaviour or the behaviour
5982 for a given id. SSL client, server and email already have functions
5983 in place for compatibility: they check the NID and also return "trusted"
5984 if the certificate is self signed.
5987 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
5988 traditional format into an EVP_PKEY structure.
5991 *) Add a password callback function PEM_cb() which either prompts for
5992 a password if usr_data is NULL or otherwise assumes it is a null
5993 terminated password. Allow passwords to be passed on command line
5994 environment or config files in a few more utilities.
5997 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
5998 keys. Add some short names for PKCS#8 PBE algorithms and allow them
5999 to be specified on the command line for the pkcs8 and pkcs12 utilities.
6000 Update documentation.
6003 *) Support for ASN1 "NULL" type. This could be handled before by using
6004 ASN1_TYPE but there wasn't any function that would try to read a NULL
6005 and produce an error if it couldn't. For compatibility we also have
6006 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
6007 don't allocate anything because they don't need to.
6010 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
6012 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
6014 *) Rebuild of the memory allocation routines used by OpenSSL code and
6015 possibly others as well. The purpose is to make an interface that
6016 provide hooks so anyone can build a separate set of allocation and
6017 deallocation routines to be used by OpenSSL, for example memory
6018 pool implementations, or something else, which was previously hard
6019 since Malloc(), Realloc() and Free() were defined as macros having
6020 the values malloc, realloc and free, respectively (except for Win32
6021 compilations). The same is provided for memory debugging code.
6022 OpenSSL already comes with functionality to find memory leaks, but
6023 this gives people a chance to debug other memory problems.
6025 With these changes, a new set of functions and macros have appeared:
6027 CRYPTO_set_mem_debug_functions() [F]
6028 CRYPTO_get_mem_debug_functions() [F]
6029 CRYPTO_dbg_set_options() [F]
6030 CRYPTO_dbg_get_options() [F]
6031 CRYPTO_malloc_debug_init() [M]
6033 The memory debug functions are NULL by default, unless the library
6034 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
6035 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
6036 gives the standard debugging functions that come with OpenSSL) or
6037 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
6038 provided by the library user) must be used. When the standard
6039 debugging functions are used, CRYPTO_dbg_set_options can be used to
6040 request additional information:
6041 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
6042 the CRYPTO_MDEBUG_xxx macro when compiling the library.
6044 Also, things like CRYPTO_set_mem_functions will always give the
6045 expected result (the new set of functions is used for allocation
6046 and deallocation) at all times, regardless of platform and compiler
6049 To finish it up, some functions that were never use in any other
6050 way than through macros have a new API and new semantic:
6053 CRYPTO_dbg_realloc()
6056 All macros of value have retained their old syntax.
6057 [Richard Levitte and Bodo Moeller]
6059 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
6060 ordering of SMIMECapabilities wasn't in "strength order" and there
6061 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
6065 *) Some ASN1 types with illegal zero length encoding (INTEGER,
6066 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
6067 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
6069 *) Merge in my S/MIME library for OpenSSL. This provides a simple
6070 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
6071 functionality to handle multipart/signed properly) and a utility
6072 called 'smime' to call all this stuff. This is based on code I
6073 originally wrote for Celo who have kindly allowed it to be
6074 included in OpenSSL.
6077 *) Add variants des_set_key_checked and des_set_key_unchecked of
6078 des_set_key (aka des_key_sched). Global variable des_check_key
6079 decides which of these is called by des_set_key; this way
6080 des_check_key behaves as it always did, but applications and
6081 the library itself, which was buggy for des_check_key == 1,
6082 have a cleaner way to pick the version they need.
6085 *) New function PKCS12_newpass() which changes the password of a
6089 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
6090 dynamic mix. In both cases the ids can be used as an index into the
6091 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
6092 functions so they accept a list of the field values and the
6093 application doesn't need to directly manipulate the X509_TRUST
6097 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
6101 *) Modify the way the V3 extension code looks up extensions. This now
6102 works in a similar way to the object code: we have some "standard"
6103 extensions in a static table which is searched with OBJ_bsearch()
6104 and the application can add dynamic ones if needed. The file
6105 crypto/x509v3/ext_dat.h now has the info: this file needs to be
6106 updated whenever a new extension is added to the core code and kept
6107 in ext_nid order. There is a simple program 'tabtest.c' which checks
6108 this. New extensions are not added too often so this file can readily
6109 be maintained manually.
6111 There are two big advantages in doing things this way. The extensions
6112 can be looked up immediately and no longer need to be "added" using
6113 X509V3_add_standard_extensions(): this function now does nothing.
6114 [Side note: I get *lots* of email saying the extension code doesn't
6115 work because people forget to call this function]
6116 Also no dynamic allocation is done unless new extensions are added:
6117 so if we don't add custom extensions there is no need to call
6118 X509V3_EXT_cleanup().
6121 *) Modify enc utility's salting as follows: make salting the default. Add a
6122 magic header, so unsalted files fail gracefully instead of just decrypting
6123 to garbage. This is because not salting is a big security hole, so people
6124 should be discouraged from doing it.
6127 *) Fixes and enhancements to the 'x509' utility. It allowed a message
6128 digest to be passed on the command line but it only used this
6129 parameter when signing a certificate. Modified so all relevant
6130 operations are affected by the digest parameter including the
6131 -fingerprint and -x509toreq options. Also -x509toreq choked if a
6132 DSA key was used because it didn't fix the digest.
6135 *) Initial certificate chain verify code. Currently tests the untrusted
6136 certificates for consistency with the verify purpose (which is set
6137 when the X509_STORE_CTX structure is set up) and checks the pathlength.
6139 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
6140 this is because it will reject chains with invalid extensions whereas
6141 every previous version of OpenSSL and SSLeay made no checks at all.
6143 Trust code: checks the root CA for the relevant trust settings. Trust
6144 settings have an initial value consistent with the verify purpose: e.g.
6145 if the verify purpose is for SSL client use it expects the CA to be
6146 trusted for SSL client use. However the default value can be changed to
6147 permit custom trust settings: one example of this would be to only trust
6148 certificates from a specific "secure" set of CAs.
6150 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
6151 which should be used for version portability: especially since the
6152 verify structure is likely to change more often now.
6154 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
6155 to set them. If not set then assume SSL clients will verify SSL servers
6158 Two new options to the verify program: -untrusted allows a set of
6159 untrusted certificates to be passed in and -purpose which sets the
6160 intended purpose of the certificate. If a purpose is set then the
6161 new chain verify code is used to check extension consistency.
6164 *) Support for the authority information access extension.
6167 *) Modify RSA and DSA PEM read routines to transparently handle
6168 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
6169 public keys in a format compatible with certificate
6170 SubjectPublicKeyInfo structures. Unfortunately there were already
6171 functions called *_PublicKey_* which used various odd formats so
6172 these are retained for compatibility: however the DSA variants were
6173 never in a public release so they have been deleted. Changed dsa/rsa
6174 utilities to handle the new format: note no releases ever handled public
6175 keys so we should be OK.
6177 The primary motivation for this change is to avoid the same fiasco
6178 that dogs private keys: there are several incompatible private key
6179 formats some of which are standard and some OpenSSL specific and
6180 require various evil hacks to allow partial transparent handling and
6181 even then it doesn't work with DER formats. Given the option anything
6182 other than PKCS#8 should be dumped: but the other formats have to
6183 stay in the name of compatibility.
6185 With public keys and the benefit of hindsight one standard format
6186 is used which works with EVP_PKEY, RSA or DSA structures: though
6187 it clearly returns an error if you try to read the wrong kind of key.
6189 Added a -pubkey option to the 'x509' utility to output the public key.
6190 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
6191 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
6192 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
6193 that do the same as the EVP_PKEY_assign_*() except they up the
6194 reference count of the added key (they don't "swallow" the
6198 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
6199 CRLs would fail if the file contained no certificates or no CRLs:
6200 added a new function to read in both types and return the number
6201 read: this means that if none are read it will be an error. The
6202 DER versions of the certificate and CRL reader would always fail
6203 because it isn't possible to mix certificates and CRLs in DER format
6204 without choking one or the other routine. Changed this to just read
6205 a certificate: this is the best we can do. Also modified the code
6206 in apps/verify.c to take notice of return codes: it was previously
6207 attempting to read in certificates from NULL pointers and ignoring
6208 any errors: this is one reason why the cert and CRL reader seemed
6209 to work. It doesn't check return codes from the default certificate
6210 routines: these may well fail if the certificates aren't installed.
6213 *) Code to support otherName option in GeneralName.
6216 *) First update to verify code. Change the verify utility
6217 so it warns if it is passed a self signed certificate:
6218 for consistency with the normal behaviour. X509_verify
6219 has been modified to it will now verify a self signed
6220 certificate if *exactly* the same certificate appears
6221 in the store: it was previously impossible to trust a
6222 single self signed certificate. This means that:
6223 openssl verify ss.pem
6224 now gives a warning about a self signed certificate but
6225 openssl verify -CAfile ss.pem ss.pem
6229 *) For servers, store verify_result in SSL_SESSION data structure
6230 (and add it to external session representation).
6231 This is needed when client certificate verifications fails,
6232 but an application-provided verification callback (set by
6233 SSL_CTX_set_cert_verify_callback) allows accepting the session
6234 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
6235 but returns 1): When the session is reused, we have to set
6236 ssl->verify_result to the appropriate error code to avoid
6238 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
6240 *) Fix a bug in the new PKCS#7 code: it didn't consider the
6241 case in PKCS7_dataInit() where the signed PKCS7 structure
6242 didn't contain any existing data because it was being created.
6243 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
6245 *) Add a salt to the key derivation routines in enc.c. This
6246 forms the first 8 bytes of the encrypted file. Also add a
6247 -S option to allow a salt to be input on the command line.
6250 *) New function X509_cmp(). Oddly enough there wasn't a function
6251 to compare two certificates. We do this by working out the SHA1
6252 hash and comparing that. X509_cmp() will be needed by the trust
6256 *) SSL_get1_session() is like SSL_get_session(), but increments
6257 the reference count in the SSL_SESSION returned.
6258 [Geoff Thorpe <geoff@eu.c2.net>]
6260 *) Fix for 'req': it was adding a null to request attributes.
6261 Also change the X509_LOOKUP and X509_INFO code to handle
6262 certificate auxiliary information.
6265 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
6269 *) Add the possibility to add extra information to the memory leak
6270 detecting output, to form tracebacks, showing from where each
6271 allocation was originated: CRYPTO_push_info("constant string") adds
6272 the string plus current file name and line number to a per-thread
6273 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
6274 is like calling CYRPTO_pop_info() until the stack is empty.
6275 Also updated memory leak detection code to be multi-thread-safe.
6278 *) Add options -text and -noout to pkcs7 utility and delete the
6279 encryption options which never did anything. Update docs.
6282 *) Add options to some of the utilities to allow the pass phrase
6283 to be included on either the command line (not recommended on
6284 OSes like Unix) or read from the environment. Update the
6285 manpages and fix a few bugs.
6288 *) Add a few manpages for some of the openssl commands.
6291 *) Fix the -revoke option in ca. It was freeing up memory twice,
6292 leaking and not finding already revoked certificates.
6295 *) Extensive changes to support certificate auxiliary information.
6296 This involves the use of X509_CERT_AUX structure and X509_AUX
6297 functions. An X509_AUX function such as PEM_read_X509_AUX()
6298 can still read in a certificate file in the usual way but it
6299 will also read in any additional "auxiliary information". By
6300 doing things this way a fair degree of compatibility can be
6301 retained: existing certificates can have this information added
6302 using the new 'x509' options.
6304 Current auxiliary information includes an "alias" and some trust
6305 settings. The trust settings will ultimately be used in enhanced
6306 certificate chain verification routines: currently a certificate
6307 can only be trusted if it is self signed and then it is trusted
6311 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
6312 The problem was that one of the replacement routines had not been working
6313 since SSLeay releases. For now the offending routine has been replaced
6314 with non-optimised assembler. Even so, this now gives around 95%
6315 performance improvement for 1024 bit RSA signs.
6318 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
6319 handling. Most clients have the effective key size in bits equal to
6320 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
6321 A few however don't do this and instead use the size of the decrypted key
6322 to determine the RC2 key length and the AlgorithmIdentifier to determine
6323 the effective key length. In this case the effective key length can still
6324 be 40 bits but the key length can be 168 bits for example. This is fixed
6325 by manually forcing an RC2 key into the EVP_PKEY structure because the
6326 EVP code can't currently handle unusual RC2 key sizes: it always assumes
6327 the key length and effective key length are equal.
6330 *) Add a bunch of functions that should simplify the creation of
6331 X509_NAME structures. Now you should be able to do:
6332 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
6333 and have it automatically work out the correct field type and fill in
6334 the structures. The more adventurous can try:
6335 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
6336 and it will (hopefully) work out the correct multibyte encoding.
6339 *) Change the 'req' utility to use the new field handling and multibyte
6340 copy routines. Before the DN field creation was handled in an ad hoc
6341 way in req, ca, and x509 which was rather broken and didn't support
6342 BMPStrings or UTF8Strings. Since some software doesn't implement
6343 BMPStrings or UTF8Strings yet, they can be enabled using the config file
6344 using the dirstring_type option. See the new comment in the default
6345 openssl.cnf for more info.
6348 *) Make crypto/rand/md_rand.c more robust:
6349 - Assure unique random numbers after fork().
6350 - Make sure that concurrent threads access the global counter and
6351 md serializably so that we never lose entropy in them
6352 or use exactly the same state in multiple threads.
6353 Access to the large state is not always serializable because
6354 the additional locking could be a performance killer, and
6355 md should be large enough anyway.
6358 *) New file apps/app_rand.c with commonly needed functionality
6359 for handling the random seed file.
6361 Use the random seed file in some applications that previously did not:
6363 dsaparam -genkey (which also ignored its '-rand' option),
6366 x509 (when signing).
6367 Except on systems with /dev/urandom, it is crucial to have a random
6368 seed file at least for key creation, DSA signing, and for DH exchanges;
6369 for RSA signatures we could do without one.
6371 gendh and gendsa (unlike genrsa) used to read only the first byte
6372 of each file listed in the '-rand' option. The function as previously
6373 found in genrsa is now in app_rand.c and is used by all programs
6374 that support '-rand'.
6377 *) In RAND_write_file, use mode 0600 for creating files;
6378 don't just chmod when it may be too late.
6381 *) Report an error from X509_STORE_load_locations
6382 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
6385 *) New function ASN1_mbstring_copy() this copies a string in either
6386 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
6387 into an ASN1_STRING type. A mask of permissible types is passed
6388 and it chooses the "minimal" type to use or an error if not type
6392 *) Add function equivalents to the various macros in asn1.h. The old
6393 macros are retained with an M_ prefix. Code inside the library can
6394 use the M_ macros. External code (including the openssl utility)
6395 should *NOT* in order to be "shared library friendly".
6398 *) Add various functions that can check a certificate's extensions
6399 to see if it usable for various purposes such as SSL client,
6400 server or S/MIME and CAs of these types. This is currently
6401 VERY EXPERIMENTAL but will ultimately be used for certificate chain
6402 verification. Also added a -purpose flag to x509 utility to
6403 print out all the purposes.
6406 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
6410 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
6411 for, obtain and decode and extension and obtain its critical flag.
6412 This allows all the necessary extension code to be handled in a
6413 single function call.
6416 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
6417 platforms. See crypto/rc4/rc4_enc.c for further details.
6420 *) New -noout option to asn1parse. This causes no output to be produced
6421 its main use is when combined with -strparse and -out to extract data
6422 from a file (which may not be in ASN.1 format).
6425 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
6426 when producing the local key id.
6427 [Richard Levitte <levitte@stacken.kth.se>]
6429 *) New option -dhparam in s_server. This allows a DH parameter file to be
6430 stated explicitly. If it is not stated then it tries the first server
6431 certificate file. The previous behaviour hard coded the filename
6435 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
6436 a public key to be input or output. For example:
6437 openssl rsa -in key.pem -pubout -out pubkey.pem
6438 Also added necessary DSA public key functions to handle this.
6441 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
6442 in the message. This was handled by allowing
6443 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
6444 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
6446 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
6447 to the end of the strings whereas this didn't. This would cause problems
6448 if strings read with d2i_ASN1_bytes() were later modified.
6449 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
6451 *) Fix for base64 decode bug. When a base64 bio reads only one line of
6452 data and it contains EOF it will end up returning an error. This is
6453 caused by input 46 bytes long. The cause is due to the way base64
6454 BIOs find the start of base64 encoded data. They do this by trying a
6455 trial decode on each line until they find one that works. When they
6456 do a flag is set and it starts again knowing it can pass all the
6457 data directly through the decoder. Unfortunately it doesn't reset
6458 the context it uses. This means that if EOF is reached an attempt
6459 is made to pass two EOFs through the context and this causes the
6460 resulting error. This can also cause other problems as well. As is
6461 usual with these problems it takes *ages* to find and the fix is
6462 trivial: move one line.
6463 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
6465 *) Ugly workaround to get s_client and s_server working under Windows. The
6466 old code wouldn't work because it needed to select() on sockets and the
6467 tty (for keypresses and to see if data could be written). Win32 only
6468 supports select() on sockets so we select() with a 1s timeout on the
6469 sockets and then see if any characters are waiting to be read, if none
6470 are present then we retry, we also assume we can always write data to
6471 the tty. This isn't nice because the code then blocks until we've
6472 received a complete line of data and it is effectively polling the
6473 keyboard at 1s intervals: however it's quite a bit better than not
6474 working at all :-) A dedicated Windows application might handle this
6475 with an event loop for example.
6478 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
6479 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
6480 will be called when RSA_sign() and RSA_verify() are used. This is useful
6481 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
6482 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
6483 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
6484 This necessitated the support of an extra signature type NID_md5_sha1
6485 for SSL signatures and modifications to the SSL library to use it instead
6486 of calling RSA_public_decrypt() and RSA_private_encrypt().
6489 *) Add new -verify -CAfile and -CApath options to the crl program, these
6490 will lookup a CRL issuers certificate and verify the signature in a
6491 similar way to the verify program. Tidy up the crl program so it
6492 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
6493 less strict. It will now permit CRL extensions even if it is not
6494 a V2 CRL: this will allow it to tolerate some broken CRLs.
6497 *) Initialize all non-automatic variables each time one of the openssl
6498 sub-programs is started (this is necessary as they may be started
6499 multiple times from the "OpenSSL>" prompt).
6500 [Lennart Bang, Bodo Moeller]
6502 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
6503 removing all other RSA functionality (this is what NO_RSA does). This
6504 is so (for example) those in the US can disable those operations covered
6505 by the RSA patent while allowing storage and parsing of RSA keys and RSA
6509 *) Non-copying interface to BIO pairs.
6510 (still largely untested)
6513 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
6514 ASCII string. This was handled independently in various places before.
6517 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
6518 UTF8 strings a character at a time.
6521 *) Use client_version from client hello to select the protocol
6522 (s23_srvr.c) and for RSA client key exchange verification
6523 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
6526 *) Add various utility functions to handle SPKACs, these were previously
6527 handled by poking round in the structure internals. Added new function
6528 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
6529 print, verify and generate SPKACs. Based on an original idea from
6530 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
6533 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
6536 *) Allow the config file extension section to be overwritten on the
6537 command line. Based on an original idea from Massimiliano Pala
6538 <madwolf@comune.modena.it>. The new option is called -extensions
6539 and can be applied to ca, req and x509. Also -reqexts to override
6540 the request extensions in req and -crlexts to override the crl extensions
6544 *) Add new feature to the SPKAC handling in ca. Now you can include
6545 the same field multiple times by preceding it by "XXXX." for example:
6548 this is the same syntax as used in the req config file.
6551 *) Allow certificate extensions to be added to certificate requests. These
6552 are specified in a 'req_extensions' option of the req section of the
6553 config file. They can be printed out with the -text option to req but
6554 are otherwise ignored at present.
6557 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
6558 data read consists of only the final block it would not decrypted because
6559 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
6560 A misplaced 'break' also meant the decrypted final block might not be
6561 copied until the next read.
6564 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
6565 a few extra parameters to the DH structure: these will be useful if
6566 for example we want the value of 'q' or implement X9.42 DH.
6569 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
6570 provides hooks that allow the default DSA functions or functions on a
6571 "per key" basis to be replaced. This allows hardware acceleration and
6572 hardware key storage to be handled without major modification to the
6573 library. Also added low level modexp hooks and CRYPTO_EX structure and
6574 associated functions.
6577 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
6578 as "read only": it can't be written to and the buffer it points to will
6579 not be freed. Reading from a read only BIO is much more efficient than
6580 a normal memory BIO. This was added because there are several times when
6581 an area of memory needs to be read from a BIO. The previous method was
6582 to create a memory BIO and write the data to it, this results in two
6583 copies of the data and an O(n^2) reading algorithm. There is a new
6584 function BIO_new_mem_buf() which creates a read only memory BIO from
6585 an area of memory. Also modified the PKCS#7 routines to use read only
6589 *) Bugfix: ssl23_get_client_hello did not work properly when called in
6590 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
6591 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
6592 but a retry condition occured while trying to read the rest.
6595 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
6596 NID_pkcs7_encrypted by default: this was wrong since this should almost
6597 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
6598 the encrypted data type: this is a more sensible place to put it and it
6599 allows the PKCS#12 code to be tidied up that duplicated this
6603 *) Changed obj_dat.pl script so it takes its input and output files on
6604 the command line. This should avoid shell escape redirection problems
6608 *) Initial support for certificate extension requests, these are included
6609 in things like Xenroll certificate requests. Included functions to allow
6610 extensions to be obtained and added.
6613 *) -crlf option to s_client and s_server for sending newlines as
6614 CRLF (as required by many protocols).
6617 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
6619 *) Install libRSAglue.a when OpenSSL is built with RSAref.
6620 [Ralf S. Engelschall]
6622 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
6623 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
6625 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
6629 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
6630 DH parameters/keys (q is lost during that conversion, but the resulting
6631 DH parameters contain its length).
6633 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
6634 much faster than DH_generate_parameters (which creates parameters
6635 where p = 2*q + 1), and also the smaller q makes DH computations
6636 much more efficient (160-bit exponentiation instead of 1024-bit
6637 exponentiation); so this provides a convenient way to support DHE
6638 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
6639 utter importance to use
6640 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6642 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6643 when such DH parameters are used, because otherwise small subgroup
6644 attacks may become possible!
6647 *) Avoid memory leak in i2d_DHparams.
6650 *) Allow the -k option to be used more than once in the enc program:
6651 this allows the same encrypted message to be read by multiple recipients.
6654 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
6655 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
6656 it will always use the numerical form of the OID, even if it has a short
6660 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
6661 method only got called if p,q,dmp1,dmq1,iqmp components were present,
6662 otherwise bn_mod_exp was called. In the case of hardware keys for example
6663 no private key components need be present and it might store extra data
6664 in the RSA structure, which cannot be accessed from bn_mod_exp.
6665 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
6666 private key operations.
6669 *) Added support for SPARC Linux.
6672 *) pem_password_cb function type incompatibly changed from
6673 typedef int pem_password_cb(char *buf, int size, int rwflag);
6675 ....(char *buf, int size, int rwflag, void *userdata);
6676 so that applications can pass data to their callbacks:
6677 The PEM[_ASN1]_{read,write}... functions and macros now take an
6678 additional void * argument, which is just handed through whenever
6679 the password callback is called.
6680 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
6682 New function SSL_CTX_set_default_passwd_cb_userdata.
6684 Compatibility note: As many C implementations push function arguments
6685 onto the stack in reverse order, the new library version is likely to
6686 interoperate with programs that have been compiled with the old
6687 pem_password_cb definition (PEM_whatever takes some data that
6688 happens to be on the stack as its last argument, and the callback
6689 just ignores this garbage); but there is no guarantee whatsoever that
6692 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
6693 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
6694 problems not only on Windows, but also on some Unix platforms.
6695 To avoid problematic command lines, these definitions are now in an
6696 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
6697 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
6700 *) MIPS III/IV assembler module is reimplemented.
6703 *) More DES library cleanups: remove references to srand/rand and
6704 delete an unused file.
6707 *) Add support for the the free Netwide assembler (NASM) under Win32,
6708 since not many people have MASM (ml) and it can be hard to obtain.
6709 This is currently experimental but it seems to work OK and pass all
6710 the tests. Check out INSTALL.W32 for info.
6713 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
6714 without temporary keys kept an extra copy of the server key,
6715 and connections with temporary keys did not free everything in case
6719 *) New function RSA_check_key and new openssl rsa option -check
6720 for verifying the consistency of RSA keys.
6721 [Ulf Moeller, Bodo Moeller]
6723 *) Various changes to make Win32 compile work:
6724 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
6725 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
6726 comparison" warnings.
6727 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
6730 *) Add a debugging option to PKCS#5 v2 key generation function: when
6731 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
6732 derived keys are printed to stderr.
6735 *) Copy the flags in ASN1_STRING_dup().
6736 [Roman E. Pavlov <pre@mo.msk.ru>]
6738 *) The x509 application mishandled signing requests containing DSA
6739 keys when the signing key was also DSA and the parameters didn't match.
6741 It was supposed to omit the parameters when they matched the signing key:
6742 the verifying software was then supposed to automatically use the CA's
6743 parameters if they were absent from the end user certificate.
6745 Omitting parameters is no longer recommended. The test was also
6746 the wrong way round! This was probably due to unusual behaviour in
6747 EVP_cmp_parameters() which returns 1 if the parameters match.
6748 This meant that parameters were omitted when they *didn't* match and
6749 the certificate was useless. Certificates signed with 'ca' didn't have
6751 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
6753 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
6754 The interface is as follows:
6755 Applications can use
6756 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
6757 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
6758 "off" is now the default.
6759 The library internally uses
6760 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
6761 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
6762 to disable memory-checking temporarily.
6764 Some inconsistent states that previously were possible (and were
6765 even the default) are now avoided.
6767 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
6768 with each memory chunk allocated; this is occasionally more helpful
6769 than just having a counter.
6771 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
6773 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
6777 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
6778 which largely parallels "options", but is for changing API behaviour,
6779 whereas "options" are about protocol behaviour.
6780 Initial "mode" flags are:
6782 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
6783 a single record has been written.
6784 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
6785 retries use the same buffer location.
6786 (But all of the contents must be
6790 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
6793 *) Fix problems with no-hmac etc.
6794 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
6796 *) New functions RSA_get_default_method(), RSA_set_method() and
6797 RSA_get_method(). These allows replacement of RSA_METHODs without having
6798 to mess around with the internals of an RSA structure.
6801 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
6802 Also really enable memory leak checks in openssl.c and in some
6804 [Chad C. Mulligan, Bodo Moeller]
6806 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
6807 up the length of negative integers. This has now been simplified to just
6808 store the length when it is first determined and use it later, rather
6809 than trying to keep track of where data is copied and updating it to
6811 [Steve Henson, reported by Brien Wheeler
6812 <bwheeler@authentica-security.com>]
6814 *) Add a new function PKCS7_signatureVerify. This allows the verification
6815 of a PKCS#7 signature but with the signing certificate passed to the
6816 function itself. This contrasts with PKCS7_dataVerify which assumes the
6817 certificate is present in the PKCS#7 structure. This isn't always the
6818 case: certificates can be omitted from a PKCS#7 structure and be
6819 distributed by "out of band" means (such as a certificate database).
6822 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
6823 function prototypes in pem.h, also change util/mkdef.pl to add the
6824 necessary function names.
6827 *) mk1mf.pl (used by Windows builds) did not properly read the
6828 options set by Configure in the top level Makefile, and Configure
6829 was not even able to write more than one option correctly.
6830 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
6833 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
6834 file to be loaded from a BIO or FILE pointer. The BIO version will
6835 for example allow memory BIOs to contain config info.
6838 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
6839 Whoever hopes to achieve shared-library compatibility across versions
6840 must use this, not the compile-time macro.
6841 (Exercise 0.9.4: Which is the minimum library version required by
6843 Note: All this applies only to multi-threaded programs, others don't
6847 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
6848 through a BIO pair triggered the default case, i.e.
6849 SSLerr(...,SSL_R_UNKNOWN_STATE).
6852 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
6853 can use the SSL library even if none of the specific BIOs is
6857 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
6858 for the encoded length.
6859 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
6861 *) Add initial documentation of the X509V3 functions.
6864 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
6865 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
6866 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
6867 secure PKCS#8 private key format with a high iteration count.
6870 *) Fix determination of Perl interpreter: A perl or perl5
6871 _directory_ in $PATH was also accepted as the interpreter.
6872 [Ralf S. Engelschall]
6874 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
6875 wrong with it but it was very old and did things like calling
6876 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
6880 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
6881 to use the new extension code.
6884 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
6885 with macros. This should make it easier to change their form, add extra
6886 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
6890 *) Add to configuration table a new entry that can specify an alternative
6891 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
6892 according to Mark Crispin <MRC@Panda.COM>.
6896 *) DES CBC did not update the IV. Weird.
6899 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
6900 Changing the behaviour of the former might break existing programs --
6901 where IV updating is needed, des_ncbc_encrypt can be used.
6904 *) When bntest is run from "make test" it drives bc to check its
6905 calculations, as well as internally checking them. If an internal check
6906 fails, it needs to cause bc to give a non-zero result or make test carries
6907 on without noticing the failure. Fixed.
6910 *) DES library cleanups.
6913 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
6914 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
6915 ciphers. NOTE: although the key derivation function has been verified
6916 against some published test vectors it has not been extensively tested
6917 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
6921 *) Instead of "mkdir -p", which is not fully portable, use new
6922 Perl script "util/mkdir-p.pl".
6925 *) Rewrite the way password based encryption (PBE) is handled. It used to
6926 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
6927 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
6928 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
6929 the 'parameter' field of the AlgorithmIdentifier is passed to the
6930 underlying key generation function so it must do its own ASN1 parsing.
6931 This has also changed the EVP_PBE_CipherInit() function which now has a
6932 'parameter' argument instead of literal salt and iteration count values
6933 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
6936 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
6937 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
6938 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
6939 KEY" because this clashed with PKCS#8 unencrypted string. Since this
6940 value was just used as a "magic string" and not used directly its
6941 value doesn't matter.
6944 *) Introduce some semblance of const correctness to BN. Shame C doesn't
6948 *) "linux-sparc64" configuration (ultrapenguin).
6949 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
6950 "linux-sparc" configuration.
6951 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
6953 *) config now generates no-xxx options for missing ciphers.
6956 *) Support the EBCDIC character set (work in progress).
6957 File ebcdic.c not yet included because it has a different license.
6958 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6960 *) Support BS2000/OSD-POSIX.
6961 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6963 *) Make callbacks for key generation use void * instead of char *.
6966 *) Make S/MIME samples compile (not yet tested).
6969 *) Additional typesafe stacks.
6972 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
6976 Changes between 0.9.3 and 0.9.3a [29 May 1999]
6978 *) New configuration variant "sco5-gcc".
6980 *) Updated some demos.
6981 [Sean O Riordain, Wade Scholine]
6983 *) Add missing BIO_free at exit of pkcs12 application.
6986 *) Fix memory leak in conf.c.
6989 *) Updates for Win32 to assembler version of MD5.
6992 *) Set #! path to perl in apps/der_chop to where we found it
6993 instead of using a fixed path.
6996 *) SHA library changes for irix64-mips4-cc.
6999 *) Improvements for VMS support.
7003 Changes between 0.9.2b and 0.9.3 [24 May 1999]
7005 *) Bignum library bug fix. IRIX 6 passes "make test" now!
7006 This also avoids the problems with SC4.2 and unpatched SC5.
7007 [Andy Polyakov <appro@fy.chalmers.se>]
7009 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
7010 These are required because of the typesafe stack would otherwise break
7011 existing code. If old code used a structure member which used to be STACK
7012 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
7013 sk_num or sk_value it would produce an error because the num, data members
7014 are not present in STACK_OF. Now it just produces a warning. sk_set
7015 replaces the old method of assigning a value to sk_value
7016 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
7017 that does this will no longer work (and should use sk_set instead) but
7018 this could be regarded as a "questionable" behaviour anyway.
7021 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
7022 correctly handle encrypted S/MIME data.
7025 *) Change type of various DES function arguments from des_cblock
7026 (which means, in function argument declarations, pointer to char)
7027 to des_cblock * (meaning pointer to array with 8 char elements),
7028 which allows the compiler to do more typechecking; it was like
7029 that back in SSLeay, but with lots of ugly casts.
7031 Introduce new type const_des_cblock.
7034 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
7035 problems: find RecipientInfo structure that matches recipient certificate
7036 and initialise the ASN1 structures properly based on passed cipher.
7039 *) Belatedly make the BN tests actually check the results.
7042 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
7043 to and from BNs: it was completely broken. New compilation option
7044 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
7045 key elements as negative integers.
7048 *) Reorganize and speed up MD5.
7049 [Andy Polyakov <appro@fy.chalmers.se>]
7052 [Richard Levitte <richard@levitte.org>]
7054 *) New option -out to asn1parse to allow the parsed structure to be
7055 output to a file. This is most useful when combined with the -strparse
7056 option to examine the output of things like OCTET STRINGS.
7059 *) Make SSL library a little more fool-proof by not requiring any longer
7060 that SSL_set_{accept,connect}_state be called before
7061 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
7062 in many applications because usually everything *appeared* to work as
7063 intended anyway -- now it really works as intended).
7066 *) Move openssl.cnf out of lib/.
7069 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
7070 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
7071 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
7072 [Ralf S. Engelschall]
7074 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
7075 handle PKCS#7 enveloped data properly.
7076 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
7078 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
7079 copying pointers. The cert_st handling is changed by this in
7080 various ways (and thus what used to be known as ctx->default_cert
7081 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
7082 any longer when s->cert does not give us what we need).
7083 ssl_cert_instantiate becomes obsolete by this change.
7084 As soon as we've got the new code right (possibly it already is?),
7085 we have solved a couple of bugs of the earlier code where s->cert
7086 was used as if it could not have been shared with other SSL structures.
7088 Note that using the SSL API in certain dirty ways now will result
7089 in different behaviour than observed with earlier library versions:
7090 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
7091 does not influence s as it used to.
7093 In order to clean up things more thoroughly, inside SSL_SESSION
7094 we don't use CERT any longer, but a new structure SESS_CERT
7095 that holds per-session data (if available); currently, this is
7096 the peer's certificate chain and, for clients, the server's certificate
7097 and temporary key. CERT holds only those values that can have
7098 meaningful defaults in an SSL_CTX.
7101 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
7102 from the internal representation. Various PKCS#7 fixes: remove some
7103 evil casts and set the enc_dig_alg field properly based on the signing
7107 *) Allow PKCS#12 password to be set from the command line or the
7108 environment. Let 'ca' get its config file name from the environment
7109 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
7113 *) Allow certificate policies extension to use an IA5STRING for the
7114 organization field. This is contrary to the PKIX definition but
7115 VeriSign uses it and IE5 only recognises this form. Document 'x509'
7119 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
7120 without disallowing inline assembler and the like for non-pedantic builds.
7123 *) Support Borland C++ builder.
7124 [Janez Jere <jj@void.si>, modified by Ulf Möller]
7129 *) SHA-1 cleanups and performance enhancements.
7130 [Andy Polyakov <appro@fy.chalmers.se>]
7132 *) Sparc v8plus assembler for the bignum library.
7133 [Andy Polyakov <appro@fy.chalmers.se>]
7135 *) Accept any -xxx and +xxx compiler options in Configure.
7138 *) Update HPUX configuration.
7141 *) Add missing sk_<type>_unshift() function to safestack.h
7142 [Ralf S. Engelschall]
7144 *) New function SSL_CTX_use_certificate_chain_file that sets the
7145 "extra_cert"s in addition to the certificate. (This makes sense
7146 only for "PEM" format files, as chains as a whole are not
7150 *) Support verify_depth from the SSL API.
7151 x509_vfy.c had what can be considered an off-by-one-error:
7152 Its depth (which was not part of the external interface)
7153 was actually counting the number of certificates in a chain;
7154 now it really counts the depth.
7157 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
7158 instead of X509err, which often resulted in confusing error
7159 messages since the error codes are not globally unique
7160 (e.g. an alleged error in ssl3_accept when a certificate
7161 didn't match the private key).
7163 *) New function SSL_CTX_set_session_id_context that allows to set a default
7164 value (so that you don't need SSL_set_session_id_context for each
7165 connection using the SSL_CTX).
7168 *) OAEP decoding bug fix.
7171 *) Support INSTALL_PREFIX for package builders, as proposed by
7175 *) New Configure options "threads" and "no-threads". For systems
7176 where the proper compiler options are known (currently Solaris
7177 and Linux), "threads" is the default.
7180 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
7183 *) Install various scripts to $(OPENSSLDIR)/misc, not to
7184 $(INSTALLTOP)/bin -- they shouldn't clutter directories
7185 such as /usr/local/bin.
7188 *) "make linux-shared" to build shared libraries.
7189 [Niels Poppe <niels@netbox.org>]
7191 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
7194 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
7195 extension adding in x509 utility.
7198 *) Remove NOPROTO sections and error code comments.
7201 *) Partial rewrite of the DEF file generator to now parse the ANSI
7205 *) New Configure options --prefix=DIR and --openssldir=DIR.
7208 *) Complete rewrite of the error code script(s). It is all now handled
7209 by one script at the top level which handles error code gathering,
7210 header rewriting and C source file generation. It should be much better
7211 than the old method: it now uses a modified version of Ulf's parser to
7212 read the ANSI prototypes in all header files (thus the old K&R definitions
7213 aren't needed for error creation any more) and do a better job of
7214 translating function codes into names. The old 'ASN1 error code imbedded
7215 in a comment' is no longer necessary and it doesn't use .err files which
7216 have now been deleted. Also the error code call doesn't have to appear all
7217 on one line (which resulted in some large lines...).
7220 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
7223 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
7224 0 (which usually indicates a closed connection), but continue reading.
7227 *) Fix some race conditions.
7230 *) Add support for CRL distribution points extension. Add Certificate
7231 Policies and CRL distribution points documentation.
7234 *) Move the autogenerated header file parts to crypto/opensslconf.h.
7237 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
7238 8 of keying material. Merlin has also confirmed interop with this fix
7239 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
7240 [Merlin Hughes <merlin@baltimore.ie>]
7242 *) Fix lots of warnings.
7243 [Richard Levitte <levitte@stacken.kth.se>]
7245 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
7246 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
7247 [Richard Levitte <levitte@stacken.kth.se>]
7249 *) Fix problems with sizeof(long) == 8.
7250 [Andy Polyakov <appro@fy.chalmers.se>]
7252 *) Change functions to ANSI C.
7255 *) Fix typos in error codes.
7256 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
7258 *) Remove defunct assembler files from Configure.
7261 *) SPARC v8 assembler BIGNUM implementation.
7262 [Andy Polyakov <appro@fy.chalmers.se>]
7264 *) Support for Certificate Policies extension: both print and set.
7265 Various additions to support the r2i method this uses.
7268 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
7269 return a const string when you are expecting an allocated buffer.
7272 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
7273 types DirectoryString and DisplayText.
7276 *) Add code to allow r2i extensions to access the configuration database,
7277 add an LHASH database driver and add several ctx helper functions.
7280 *) Fix an evil bug in bn_expand2() which caused various BN functions to
7281 fail when they extended the size of a BIGNUM.
7284 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
7285 support typesafe stack.
7288 *) Fix typo in SSL_[gs]et_options().
7289 [Nils Frostberg <nils@medcom.se>]
7291 *) Delete various functions and files that belonged to the (now obsolete)
7292 old X509V3 handling code.
7295 *) New Configure option "rsaref".
7298 *) Don't auto-generate pem.h.
7301 *) Introduce type-safe ASN.1 SETs.
7304 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
7305 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
7307 *) Introduce type-safe STACKs. This will almost certainly break lots of code
7308 that links with OpenSSL (well at least cause lots of warnings), but fear
7309 not: the conversion is trivial, and it eliminates loads of evil casts. A
7310 few STACKed things have been converted already. Feel free to convert more.
7311 In the fullness of time, I'll do away with the STACK type altogether.
7314 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
7315 specified in <certfile> by updating the entry in the index.txt file.
7316 This way one no longer has to edit the index.txt file manually for
7317 revoking a certificate. The -revoke option does the gory details now.
7318 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
7320 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
7321 `-text' option at all and this way the `-noout -text' combination was
7322 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
7323 [Ralf S. Engelschall]
7325 *) Make sure a corresponding plain text error message exists for the
7326 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
7327 verify callback function determined that a certificate was revoked.
7328 [Ralf S. Engelschall]
7330 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
7331 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
7332 all available cipers including rc5, which was forgotten until now.
7333 In order to let the testing shell script know which algorithms
7334 are available, a new (up to now undocumented) command
7335 "openssl list-cipher-commands" is used.
7338 *) Bugfix: s_client occasionally would sleep in select() when
7339 it should have checked SSL_pending() first.
7342 *) New functions DSA_do_sign and DSA_do_verify to provide access to
7343 the raw DSA values prior to ASN.1 encoding.
7346 *) Tweaks to Configure
7347 [Niels Poppe <niels@netbox.org>]
7349 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
7353 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
7356 *) New config option to avoid instructions that are illegal on the 80386.
7357 The default code is faster, but requires at least a 486.
7360 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
7361 SSL2_SERVER_VERSION (not used at all) macros, which are now the
7362 same as SSL2_VERSION anyway.
7365 *) New "-showcerts" option for s_client.
7368 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
7369 application. Various cleanups and fixes.
7372 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
7373 modify error routines to work internally. Add error codes and PBE init
7374 to library startup routines.
7377 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
7378 packing functions to asn1 and evp. Changed function names and error
7379 codes along the way.
7382 *) PKCS12 integration: and so it begins... First of several patches to
7383 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
7384 objects to objects.h
7387 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
7388 and display support for Thawte strong extranet extension.
7391 *) Add LinuxPPC support.
7392 [Jeff Dubrule <igor@pobox.org>]
7394 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
7395 bn_div_words in alpha.s.
7396 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
7398 *) Make sure the RSA OAEP test is skipped under -DRSAref because
7399 OAEP isn't supported when OpenSSL is built with RSAref.
7400 [Ulf Moeller <ulf@fitug.de>]
7402 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
7403 so they no longer are missing under -DNOPROTO.
7404 [Soren S. Jorvang <soren@t.dk>]
7407 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
7409 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
7410 doesn't work when the session is reused. Coming soon!
7413 *) Fix a security hole, that allows sessions to be reused in the wrong
7414 context thus bypassing client cert protection! All software that uses
7415 client certs and session caches in multiple contexts NEEDS PATCHING to
7416 allow session reuse! A fuller solution is in the works.
7417 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
7419 *) Some more source tree cleanups (removed obsolete files
7420 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
7421 permission on "config" script to be executable) and a fix for the INSTALL
7423 [Ulf Moeller <ulf@fitug.de>]
7425 *) Remove some legacy and erroneous uses of malloc, free instead of
7427 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
7429 *) Make rsa_oaep_test return non-zero on error.
7430 [Ulf Moeller <ulf@fitug.de>]
7432 *) Add support for native Solaris shared libraries. Configure
7433 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
7434 if someone would make that last step automatic.
7435 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
7437 *) ctx_size was not built with the right compiler during "make links". Fixed.
7440 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
7441 except NULL ciphers". This means the default cipher list will no longer
7442 enable NULL ciphers. They need to be specifically enabled e.g. with
7443 the string "DEFAULT:eNULL".
7446 *) Fix to RSA private encryption routines: if p < q then it would
7447 occasionally produce an invalid result. This will only happen with
7448 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
7451 *) Be less restrictive and allow also `perl util/perlpath.pl
7452 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
7453 because this way one can also use an interpreter named `perl5' (which is
7454 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
7455 installed as `perl').
7456 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7458 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
7459 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7461 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
7462 advapi32.lib to Win32 build and change the pem test comparision
7463 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
7464 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
7465 and crypto/des/ede_cbcm_enc.c.
7468 *) DES quad checksum was broken on big-endian architectures. Fixed.
7471 *) Comment out two functions in bio.h that aren't implemented. Fix up the
7472 Win32 test batch file so it (might) work again. The Win32 test batch file
7473 is horrible: I feel ill....
7476 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
7477 in e_os.h. Audit of header files to check ANSI and non ANSI
7478 sections: 10 functions were absent from non ANSI section and not exported
7479 from Windows DLLs. Fixed up libeay.num for new functions.
7482 *) Make `openssl version' output lines consistent.
7483 [Ralf S. Engelschall]
7485 *) Fix Win32 symbol export lists for BIO functions: Added
7486 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
7487 to ms/libeay{16,32}.def.
7488 [Ralf S. Engelschall]
7490 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
7491 fine under Unix and passes some trivial tests I've now added. But the
7492 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
7493 added to make sure no one expects that this stuff really works in the
7494 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
7495 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
7497 [Ralf S. Engelschall]
7499 *) Fix the generation of two part addresses in perl.
7500 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
7502 *) Add config entry for Linux on MIPS.
7503 [John Tobey <jtobey@channel1.com>]
7505 *) Make links whenever Configure is run, unless we are on Windoze.
7508 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
7509 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
7513 *) Add a useful kludge to allow package maintainers to specify compiler and
7514 other platforms details on the command line without having to patch the
7515 Configure script everytime: One now can use ``perl Configure
7516 <id>:<details>'', i.e. platform ids are allowed to have details appended
7517 to them (seperated by colons). This is treated as there would be a static
7518 pre-configured entry in Configure's %table under key <id> with value
7519 <details> and ``perl Configure <id>'' is called. So, when you want to
7520 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
7521 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
7522 now, which overrides the FreeBSD-elf entry on-the-fly.
7523 [Ralf S. Engelschall]
7525 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
7528 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
7529 on the `perl Configure ...' command line. This way one can compile
7530 OpenSSL libraries with Position Independent Code (PIC) which is needed
7531 for linking it into DSOs.
7532 [Ralf S. Engelschall]
7534 *) Remarkably, export ciphers were totally broken and no-one had noticed!
7538 *) Cleaned up the LICENSE document: The official contact for any license
7539 questions now is the OpenSSL core team under openssl-core@openssl.org.
7540 And add a paragraph about the dual-license situation to make sure people
7541 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
7542 to the OpenSSL toolkit.
7543 [Ralf S. Engelschall]
7545 *) General source tree makefile cleanups: Made `making xxx in yyy...'
7546 display consistent in the source tree and replaced `/bin/rm' by `rm'.
7547 Additonally cleaned up the `make links' target: Remove unnecessary
7548 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
7549 to speed processing and no longer clutter the display with confusing
7550 stuff. Instead only the actually done links are displayed.
7551 [Ralf S. Engelschall]
7553 *) Permit null encryption ciphersuites, used for authentication only. It used
7554 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
7555 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
7559 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
7560 signed attributes when verifying signatures (this would break them),
7561 the detached data encoding was wrong and public keys obtained using
7562 X509_get_pubkey() weren't freed.
7565 *) Add text documentation for the BUFFER functions. Also added a work around
7566 to a Win95 console bug. This was triggered by the password read stuff: the
7567 last character typed gets carried over to the next fread(). If you were
7568 generating a new cert request using 'req' for example then the last
7569 character of the passphrase would be CR which would then enter the first
7573 *) Added the new `Includes OpenSSL Cryptography Software' button as
7574 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
7575 button and can be used by applications based on OpenSSL to show the
7576 relationship to the OpenSSL project.
7577 [Ralf S. Engelschall]
7579 *) Remove confusing variables in function signatures in files
7580 ssl/ssl_lib.c and ssl/ssl.h.
7581 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7583 *) Don't install bss_file.c under PREFIX/include/
7584 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7586 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
7587 functions that return function pointers and has support for NT specific
7588 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
7589 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
7590 unsigned to signed types: this was killing the Win32 compile.
7593 *) Add new certificate file to stack functions,
7594 SSL_add_dir_cert_subjects_to_stack() and
7595 SSL_add_file_cert_subjects_to_stack(). These largely supplant
7596 SSL_load_client_CA_file(), and can be used to add multiple certs easily
7597 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
7598 This means that Apache-SSL and similar packages don't have to mess around
7599 to add as many CAs as they want to the preferred list.
7602 *) Experiment with doxygen documentation. Currently only partially applied to
7604 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
7605 openssl.doxy as the configuration file.
7608 *) Get rid of remaining C++-style comments which strict C compilers hate.
7609 [Ralf S. Engelschall, pointed out by Carlos Amengual]
7611 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
7612 compiled in by default: it has problems with large keys.
7615 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
7616 DH private keys and/or callback functions which directly correspond to
7617 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
7618 is needed for applications which have to configure certificates on a
7619 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
7621 For the RSA certificate situation is makes no difference, but
7622 for the DSA certificate situation this fixes the "no shared cipher"
7623 problem where the OpenSSL cipher selection procedure failed because the
7624 temporary keys were not overtaken from the context and the API provided
7625 no way to reconfigure them.
7626 The new functions now let applications reconfigure the stuff and they
7627 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
7628 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
7629 non-public-API function ssl_cert_instantiate() is used as a helper
7630 function and also to reduce code redundancy inside ssl_rsa.c.
7631 [Ralf S. Engelschall]
7633 *) Move s_server -dcert and -dkey options out of the undocumented feature
7634 area because they are useful for the DSA situation and should be
7635 recognized by the users.
7636 [Ralf S. Engelschall]
7638 *) Fix the cipher decision scheme for export ciphers: the export bits are
7639 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
7640 SSL_EXP_MASK. So, the original variable has to be used instead of the
7641 already masked variable.
7642 [Richard Levitte <levitte@stacken.kth.se>]
7644 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
7645 [Richard Levitte <levitte@stacken.kth.se>]
7647 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
7648 from `int' to `unsigned int' because it's a length and initialized by
7649 EVP_DigestFinal() which expects an `unsigned int *'.
7650 [Richard Levitte <levitte@stacken.kth.se>]
7652 *) Don't hard-code path to Perl interpreter on shebang line of Configure
7653 script. Instead use the usual Shell->Perl transition trick.
7654 [Ralf S. Engelschall]
7656 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
7657 (in addition to RSA certificates) to match the behaviour of `openssl dsa
7658 -noout -modulus' as it's already the case for `openssl rsa -noout
7659 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
7660 currently the public key is printed (a decision which was already done by
7661 `openssl dsa -modulus' in the past) which serves a similar purpose.
7662 Additionally the NO_RSA no longer completely removes the whole -modulus
7663 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
7665 [Ralf S. Engelschall]
7667 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
7668 BIO. See the source (crypto/evp/bio_ok.c) for more info.
7669 [Arne Ansper <arne@ats.cyber.ee>]
7671 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
7672 to be added. Now both 'req' and 'ca' can use new objects defined in the
7676 *) Add cool BIO that does syslog (or event log on NT).
7677 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
7679 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
7680 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
7681 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
7682 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
7685 *) Add preliminary config info for new extension code.
7688 *) Make RSA_NO_PADDING really use no padding.
7689 [Ulf Moeller <ulf@fitug.de>]
7691 *) Generate errors when private/public key check is done.
7694 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
7695 for some CRL extensions and new objects added.
7698 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
7699 key usage extension and fuller support for authority key id.
7702 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
7703 padding method for RSA, which is recommended for new applications in PKCS
7704 #1 v2.0 (RFC 2437, October 1998).
7705 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
7706 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
7707 against Bleichbacher's attack on RSA.
7708 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
7711 *) Updates to the new SSL compression code
7712 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7714 *) Fix so that the version number in the master secret, when passed
7715 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
7716 (because the server will not accept higher), that the version number
7717 is 0x03,0x01, not 0x03,0x00
7718 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7720 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
7721 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
7722 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
7725 *) Support for RAW extensions where an arbitrary extension can be
7726 created by including its DER encoding. See apps/openssl.cnf for
7730 *) Make sure latest Perl versions don't interpret some generated C array
7731 code as Perl array code in the crypto/err/err_genc.pl script.
7732 [Lars Weber <3weber@informatik.uni-hamburg.de>]
7734 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
7735 not many people have the assembler. Various Win32 compilation fixes and
7736 update to the INSTALL.W32 file with (hopefully) more accurate Win32
7740 *) Modify configure script 'Configure' to automatically create crypto/date.h
7741 file under Win32 and also build pem.h from pem.org. New script
7742 util/mkfiles.pl to create the MINFO file on environments that can't do a
7743 'make files': perl util/mkfiles.pl >MINFO should work.
7746 *) Major rework of DES function declarations, in the pursuit of correctness
7747 and purity. As a result, many evil casts evaporated, and some weirdness,
7748 too. You may find this causes warnings in your code. Zapping your evil
7749 casts will probably fix them. Mostly.
7752 *) Fix for a typo in asn1.h. Bug fix to object creation script
7753 obj_dat.pl. It considered a zero in an object definition to mean
7754 "end of object": none of the objects in objects.h have any zeros
7755 so it wasn't spotted.
7756 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
7758 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
7759 Masking (CBCM). In the absence of test vectors, the best I have been able
7760 to do is check that the decrypt undoes the encrypt, so far. Send me test
7761 vectors if you have them.
7764 *) Correct calculation of key length for export ciphers (too much space was
7765 allocated for null ciphers). This has not been tested!
7768 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
7769 message is now correct (it understands "crypto" and "ssl" on its
7770 command line). There is also now an "update" option. This will update
7771 the util/ssleay.num and util/libeay.num files with any new functions.
7773 perl util/mkdef.pl crypto ssl update
7774 it will update them.
7777 *) Overhauled the Perl interface (perl/*):
7778 - ported BN stuff to OpenSSL's different BN library
7779 - made the perl/ source tree CVS-aware
7780 - renamed the package from SSLeay to OpenSSL (the files still contain
7781 their history because I've copied them in the repository)
7782 - removed obsolete files (the test scripts will be replaced
7783 by better Test::Harness variants in the future)
7784 [Ralf S. Engelschall]
7786 *) First cut for a very conservative source tree cleanup:
7787 1. merge various obsolete readme texts into doc/ssleay.txt
7788 where we collect the old documents and readme texts.
7789 2. remove the first part of files where I'm already sure that we no
7790 longer need them because of three reasons: either they are just temporary
7791 files which were left by Eric or they are preserved original files where
7792 I've verified that the diff is also available in the CVS via "cvs diff
7793 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
7794 the crypto/md/ stuff).
7795 [Ralf S. Engelschall]
7797 *) More extension code. Incomplete support for subject and issuer alt
7798 name, issuer and authority key id. Change the i2v function parameters
7799 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
7800 what that's for :-) Fix to ASN1 macro which messed up
7801 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
7804 *) Preliminary support for ENUMERATED type. This is largely copied from the
7808 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
7809 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7811 *) Make sure `make rehash' target really finds the `openssl' program.
7812 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7814 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
7815 like to hear about it if this slows down other processors.
7818 *) Add CygWin32 platform information to Configure script.
7819 [Alan Batie <batie@aahz.jf.intel.com>]
7821 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
7822 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
7824 *) New program nseq to manipulate netscape certificate sequences
7827 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
7831 *) Fixes to BN code. Previously the default was to define BN_RECURSION
7832 but the BN code had some problems that would cause failures when
7833 doing certificate verification and some other functions.
7834 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7836 *) Add ASN1 and PEM code to support netscape certificate sequences.
7839 *) Add ASN1 and PEM code to support netscape certificate sequences.
7842 *) Add several PKIX and private extended key usage OIDs.
7845 *) Modify the 'ca' program to handle the new extension code. Modify
7846 openssl.cnf for new extension format, add comments.
7849 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
7850 and add a sample to openssl.cnf so req -x509 now adds appropriate
7854 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
7855 error code, add initial support to X509_print() and x509 application.
7858 *) Takes a deep breath and start addding X509 V3 extension support code. Add
7859 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
7860 stuff is currently isolated and isn't even compiled yet.
7863 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
7864 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
7865 Removed the versions check from X509 routines when loading extensions:
7866 this allows certain broken certificates that don't set the version
7867 properly to be processed.
7870 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
7871 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
7872 can still be regenerated with "make depend".
7875 *) Spelling mistake in C version of CAST-128.
7876 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
7878 *) Changes to the error generation code. The perl script err-code.pl
7879 now reads in the old error codes and retains the old numbers, only
7880 adding new ones if necessary. It also only changes the .err files if new
7881 codes are added. The makefiles have been modified to only insert errors
7882 when needed (to avoid needlessly modifying header files). This is done
7883 by only inserting errors if the .err file is newer than the auto generated
7884 C file. To rebuild all the error codes from scratch (the old behaviour)
7885 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
7886 or delete all the .err files.
7889 *) CAST-128 was incorrectly implemented for short keys. The C version has
7890 been fixed, but is untested. The assembler versions are also fixed, but
7891 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
7892 to regenerate it if needed.
7893 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
7894 Hagino <itojun@kame.net>]
7896 *) File was opened incorrectly in randfile.c.
7897 [Ulf Möller <ulf@fitug.de>]
7899 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
7900 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
7901 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
7902 al: it's just almost always a UTCTime. Note this patch adds new error
7903 codes so do a "make errors" if there are problems.
7906 *) Correct Linux 1 recognition in config.
7907 [Ulf Möller <ulf@fitug.de>]
7909 *) Remove pointless MD5 hash when using DSA keys in ca.
7910 [Anonymous <nobody@replay.com>]
7912 *) Generate an error if given an empty string as a cert directory. Also
7913 generate an error if handed NULL (previously returned 0 to indicate an
7914 error, but didn't set one).
7915 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
7917 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
7920 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
7921 parameters. This was causing a warning which killed off the Win32 compile.
7924 *) Remove C++ style comments from crypto/bn/bn_local.h.
7925 [Neil Costigan <neil.costigan@celocom.com>]
7927 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
7928 based on a text string, looking up short and long names and finally
7929 "dot" format. The "dot" format stuff didn't work. Added new function
7930 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
7931 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
7932 OID is not part of the table.
7935 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
7936 X509_LOOKUP_by_alias().
7939 *) Sort openssl functions by name.
7942 *) Get the gendsa program working (hopefully) and add it to app list. Remove
7943 encryption from sample DSA keys (in case anyone is interested the password
7947 *) Make _all_ *_free functions accept a NULL pointer.
7948 [Frans Heymans <fheymans@isaserver.be>]
7950 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
7952 [Anonymous <nobody@replay.com>]
7954 *) s_server should send the CAfile as acceptable CAs, not its own cert.
7955 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
7957 *) Don't blow it for numeric -newkey arguments to apps/req.
7958 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
7960 *) Temp key "for export" tests were wrong in s3_srvr.c.
7961 [Anonymous <nobody@replay.com>]
7963 *) Add prototype for temp key callback functions
7964 SSL_CTX_set_tmp_{rsa,dh}_callback().
7967 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
7968 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
7971 *) X509_name_add_entry() freed the wrong thing after an error.
7972 [Arne Ansper <arne@ats.cyber.ee>]
7974 *) rsa_eay.c would attempt to free a NULL context.
7975 [Arne Ansper <arne@ats.cyber.ee>]
7977 *) BIO_s_socket() had a broken should_retry() on Windoze.
7978 [Arne Ansper <arne@ats.cyber.ee>]
7980 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
7981 [Arne Ansper <arne@ats.cyber.ee>]
7983 *) Make sure the already existing X509_STORE->depth variable is initialized
7984 in X509_STORE_new(), but document the fact that this variable is still
7985 unused in the certificate verification process.
7986 [Ralf S. Engelschall]
7988 *) Fix the various library and apps files to free up pkeys obtained from
7989 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
7992 *) Fix reference counting in X509_PUBKEY_get(). This makes
7993 demos/maurice/example2.c work, amongst others, probably.
7994 [Steve Henson and Ben Laurie]
7996 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
7997 `openssl' and second, the shortcut symlinks for the `openssl <command>'
7998 are no longer created. This way we have a single and consistent command
7999 line interface `openssl <command>', similar to `cvs <command>'.
8000 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
8002 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
8003 BIT STRING wrapper always have zero unused bits.
8006 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
8009 *) Make the top-level INSTALL documentation easier to understand.
8012 *) Makefiles updated to exit if an error occurs in a sub-directory
8013 make (including if user presses ^C) [Paul Sutton]
8015 *) Make Montgomery context stuff explicit in RSA data structure.
8018 *) Fix build order of pem and err to allow for generated pem.h.
8021 *) Fix renumbering bug in X509_NAME_delete_entry().
8024 *) Enhanced the err-ins.pl script so it makes the error library number
8025 global and can add a library name. This is needed for external ASN1 and
8026 other error libraries.
8029 *) Fixed sk_insert which never worked properly.
8032 *) Fix ASN1 macros so they can handle indefinite length construted
8033 EXPLICIT tags. Some non standard certificates use these: they can now
8037 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
8038 into a single doc/ssleay.txt bundle. This way the information is still
8039 preserved but no longer messes up this directory. Now it's new room for
8040 the new set of documenation files.
8041 [Ralf S. Engelschall]
8043 *) SETs were incorrectly DER encoded. This was a major pain, because they
8044 shared code with SEQUENCEs, which aren't coded the same. This means that
8045 almost everything to do with SETs or SEQUENCEs has either changed name or
8046 number of arguments.
8047 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
8049 *) Fix test data to work with the above.
8052 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
8053 was already fixed by Eric for 0.9.1 it seems.
8054 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
8056 *) Autodetect FreeBSD3.
8059 *) Fix various bugs in Configure. This affects the following platforms:
8063 unixware-2.0-pentium
8067 *) Eliminate generated files from CVS. Reorder tests to regenerate files
8068 before they are needed.
8071 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
8075 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
8077 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
8078 changed SSLeay to OpenSSL in version strings.
8079 [Ralf S. Engelschall]
8081 *) Some fixups to the top-level documents.
8084 *) Fixed the nasty bug where rsaref.h was not found under compile-time
8085 because the symlink to include/ was missing.
8086 [Ralf S. Engelschall]
8088 *) Incorporated the popular no-RSA/DSA-only patches
8089 which allow to compile a RSA-free SSLeay.
8090 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
8092 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
8093 when "ssleay" is still not found.
8094 [Ralf S. Engelschall]
8096 *) Added more platforms to Configure: Cray T3E, HPUX 11,
8097 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
8099 *) Updated the README file.
8100 [Ralf S. Engelschall]
8102 *) Added various .cvsignore files in the CVS repository subdirs
8103 to make a "cvs update" really silent.
8104 [Ralf S. Engelschall]
8106 *) Recompiled the error-definition header files and added
8107 missing symbols to the Win32 linker tables.
8108 [Ralf S. Engelschall]
8110 *) Cleaned up the top-level documents;
8111 o new files: CHANGES and LICENSE
8112 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
8113 o merged COPYRIGHT into LICENSE
8114 o removed obsolete TODO file
8115 o renamed MICROSOFT to INSTALL.W32
8116 [Ralf S. Engelschall]
8118 *) Removed dummy files from the 0.9.1b source tree:
8119 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
8120 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
8121 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
8122 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
8123 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
8124 [Ralf S. Engelschall]
8126 *) Added various platform portability fixes.
8129 *) The Genesis of the OpenSSL rpject:
8130 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
8131 Young and Tim J. Hudson created while they were working for C2Net until
8133 [The OpenSSL Project]
8136 Changes between 0.9.0b and 0.9.1b [not released]
8138 *) Updated a few CA certificates under certs/
8141 *) Changed some BIGNUM api stuff.
8144 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
8145 DGUX x86, Linux Alpha, etc.
8148 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
8149 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
8153 *) Add -strparse option to asn1pars program which parses nested
8155 [Dr Stephen Henson <shenson@bigfoot.com>]
8157 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
8160 *) DSA fix for "ca" program.
8163 *) Added "-genkey" option to "dsaparam" program.
8166 *) Added RIPE MD160 (rmd160) message digest.
8169 *) Added -a (all) option to "ssleay version" command.
8172 *) Added PLATFORM define which is the id given to Configure.
8175 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
8178 *) Extended the ASN.1 parser routines.
8181 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
8184 *) Added a BN_CTX to the BN library.
8187 *) Fixed the weak key values in DES library
8190 *) Changed API in EVP library for cipher aliases.
8193 *) Added support for RC2/64bit cipher.
8196 *) Converted the lhash library to the crypto/mem.c functions.
8199 *) Added more recognized ASN.1 object ids.
8202 *) Added more RSA padding checks for SSL/TLS.
8205 *) Added BIO proxy/filter functionality.
8208 *) Added extra_certs to SSL_CTX which can be used
8209 send extra CA certificates to the client in the CA cert chain sending
8210 process. It can be configured with SSL_CTX_add_extra_chain_cert().
8213 *) Now Fortezza is denied in the authentication phase because
8214 this is key exchange mechanism is not supported by SSLeay at all.
8217 *) Additional PKCS1 checks.
8220 *) Support the string "TLSv1" for all TLS v1 ciphers.
8223 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
8224 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
8227 *) Fixed a few memory leaks.
8230 *) Fixed various code and comment typos.
8233 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
8234 bytes sent in the client random.
8235 [Edward Bishop <ebishop@spyglass.com>]