5 Changes between 0.9.8e and 0.9.9 [xx XXX xxxx]
7 *) Change ssl_cipher_apply_rule(), the internal function that does
8 the work each time a ciphersuite string requests enabling
9 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
10 removing ("!foo+bar") a class of ciphersuites: Now it maintains
11 the order of disabled ciphersuites such that those ciphersuites
12 that most recently went from enabled to disabled not only stay
13 in order with respect to each other, but also have higher priority
14 than other disabled ciphersuites the next time ciphersuites are
17 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
18 the same ciphersuites as with "HIGH" alone, but in a specific
19 order where the PSK ciphersuites come first (since they are the
20 most recently disabled ciphersuites when "HIGH" is parsed).
22 Also, change ssl_create_cipher_list() (using this new
23 funcionality) such that between otherwise identical
24 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
28 *) Change ssl_create_cipher_list() so that it automatically
29 arranges the ciphersuites in reasonable order before starting
30 to process the rule string. Thus, the definition for "DEFAULT"
31 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
32 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
33 This makes it much easier to arrive at a reasonable default order
34 in applications for which anonymous ciphers are OK (meaning
35 that you can't actually use DEFAULT).
36 [Bodo Moeller; suggested by Victor Duchovni]
38 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
39 processing) into multiple integers instead of setting
40 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
41 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
42 (These masks as well as the individual bit definitions are hidden
43 away into the non-exported interface ssl/ssl_locl.h, so this
44 change to the definition of the SSL_CIPHER structure shouldn't
45 affect applications.) This give us more bits for each of these
46 categories, so there is no longer a need to coagulate AES128 and
47 AES256 into a single algorithm bit, and to coagulate Camellia128
48 and Camellia256 into a single algorithm bit, which has led to all
51 Thus, among other things, the kludge introduced in 0.9.7m and
52 0.9.8e for masking out AES256 independently of AES128 or masking
53 out Camellia256 independently of AES256 is not needed here in 0.9.9.
55 With the change, we also introduce new ciphersuite aliases that
56 so far were missing: "AES128", "AES256", "CAMELLIA128", and
60 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
61 Use the leftmost N bytes of the signature input if the input is
62 larger than the prime q (with N being the size in bytes of q).
65 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
66 it yet and it is largely untested.
69 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
72 *) Initial incomplete changes to avoid need for function casts in OpenSSL
73 when OPENSSL_NO_FCAST is set: some compilers (gcc 4.2 and later) reject
74 their use. Safestack is reimplemented using inline functions: tests show
75 that these calls are typically optimized away by compilers so they have
76 no additional overhead. Update ASN1 to avoid use of legacy functions.
79 *) Win32/64 targets are linked with Winsock2.
82 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
83 to external functions. This can be used to increase CRL handling
84 efficiency especially when CRLs are very large by (for example) storing
85 the CRL revoked certificates in a database.
88 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
89 new CRLs added to a directory can be used. New command line option
90 -verify_return_error to s_client and s_server. This causes real errors
91 to be returned by the verify callback instead of carrying on no matter
92 what. This reflects the way a "real world" verify callback would behave.
95 *) GOST engine, supporting several GOST algorithms and public key formats.
96 Kindly donated by Cryptocom.
99 *) Partial support for Issuing Distribution Point CRL extension. CRLs
100 partitioned by DP are handled but no indirect CRL or reason partitioning
101 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
102 selected via a scoring technique which handles IDP and AKID in CRLs.
105 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
106 will ultimately be used for all verify operations: this will remove the
107 X509_STORE dependency on certificate verification and allow alternative
108 lookup methods. X509_STORE based implementations of these two callbacks.
111 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
112 Modify get_crl() to find a valid (unexpired) CRL if possible.
115 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
116 this would be called X509_CRL_cmp() but that name is already used by
117 a function that just compares CRL issuer names. Cache several CRL
118 extensions in X509_CRL structure and cache CRLDP in X509.
121 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
122 this maps equivalent X509_NAME structures into a consistent structure.
123 Name comparison can then be performed rapidly using memcmp().
126 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
130 *) Allow digests to supply their own micalg string for S/MIME type using
131 the ctrl EVP_MD_CTRL_MICALG.
134 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
135 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
136 ctrl. It can then customise the structure before and/or after signing
140 *) New function OBJ_add_sigid() to allow application defined signature OIDs
141 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
142 to free up any added signature OIDs.
145 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
146 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
147 digest and cipher tables. New options added to openssl utility:
148 list-message-digest-algorithms and list-cipher-algorithms.
151 *) In addition to the numerical (unsigned long) thread ID, provide
152 for a pointer (void *) thread ID. This helps accomodate systems
153 that do not provide an unsigned long thread ID. OpenSSL assumes
154 it is in the same thread iff both the numerical and the pointer
155 thread ID agree; so applications are just required to define one
156 of them appropriately (e.g., by using a pointer to a per-thread
157 memory object malloc()ed by the application for the pointer-type
158 thread ID). Exactly analoguous to the existing functions
160 void CRYPTO_set_id_callback(unsigned long (*func)(void));
161 unsigned long (*CRYPTO_get_id_callback(void))(void);
162 unsigned long CRYPTO_thread_id(void);
164 we now have additional functions
166 void CRYPTO_set_idptr_callback(void *(*func)(void));
167 void *(*CRYPTO_get_idptr_callback(void))(void);
168 void *CRYPTO_thread_idptr(void);
170 also in <openssl/crypto.h>. The default value for
171 CRYPTO_thread_idptr() if the application has not provided its own
175 *) Change the array representation of binary polynomials: the list
176 of degrees of non-zero coefficients is now terminated with -1.
177 Previously it was terminated with 0, which was also part of the
178 value; thus, the array representation was not applicable to
179 polynomials where t^0 has coefficient zero. This change makes
180 the array representation useful in a more general context.
183 *) Various modifications and fixes to SSL/TLS cipher string
184 handling. For ECC, the code now distinguishes between fixed ECDH
185 with RSA certificates on the one hand and with ECDSA certificates
186 on the other hand, since these are separate ciphersuites. The
187 unused code for Fortezza ciphersuites has been removed.
189 For consistency with EDH, ephemeral ECDH is now called "EECDH"
190 (not "ECDHE"). For consistency with the code for DH
191 certificates, use of ECDH certificates is now considered ECDH
192 authentication, not RSA or ECDSA authentication (the latter is
193 merely the CA's signing algorithm and not actively used in the
196 The temporary ciphersuite alias "ECCdraft" is no longer
197 available, and ECC ciphersuites are no longer excluded from "ALL"
198 and "DEFAULT". The following aliases now exist for RFC 4492
199 ciphersuites, most of these by analogy with the DH case:
201 kECDHr - ECDH cert, signed with RSA
202 kECDHe - ECDH cert, signed with ECDSA
203 kECDH - ECDH cert (signed with either RSA or ECDSA)
204 kEECDH - ephemeral ECDH
205 ECDH - ECDH cert or ephemeral ECDH
211 AECDH - anonymous ECDH
212 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
216 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
217 Use correct micalg parameters depending on digest(s) in signed message.
220 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
221 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
224 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
225 an engine to register a method. Add ENGINE lookups for methods and
226 functional reference processing.
229 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
230 EVP_{Sign,Verify}* which allow an application to customise the signature
234 *) New -resign option to smime utility. This adds one or more signers
235 to an existing PKCS#7 signedData structure. Also -md option to use an
236 alternative message digest algorithm for signing.
239 *) Tidy up PKCS#7 routines and add new functions to make it easier to
240 create PKCS7 structures containing multiple signers. Update smime
241 application to support multiple signers.
244 *) New -macalg option to pkcs12 utility to allow setting of an alternative
248 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
249 Reorganize PBE internals to lookup from a static table using NIDs,
250 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
251 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
252 PRF which will be automatically used with PBES2.
255 *) Replace the algorithm specific calls to generate keys in "req" with the
259 *) Update PKCS#7 enveloped data routines to use new API. This is now
260 supported by any public key method supporting the encrypt operation. A
261 ctrl is added to allow the public key algorithm to examine or modify
262 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
266 *) Add a ctrl to asn1 method to allow a public key algorithm to express
267 a default digest type to use. In most cases this will be SHA1 but some
268 algorithms (such as GOST) need to specify an alternative digest. The
269 return value indicates how strong the prefernce is 1 means optional and
270 2 is mandatory (that is it is the only supported type). Modify
271 ASN1_item_sign() to accept a NULL digest argument to indicate it should
272 use the default md. Update openssl utilities to use the default digest
273 type for signing if it is not explicitly indicated.
276 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
277 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
278 signing method from the key type. This effectively removes the link
279 between digests and public key types.
282 *) Add an OID cross reference table and utility functions. Its purpose is to
283 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
284 rsaEncryption. This will allow some of the algorithm specific hackery
285 needed to use the correct OID to be removed.
288 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
289 structures for PKCS7_sign(). They are now set up by the relevant public
293 *) Add provisional EC pkey method with support for ECDSA and ECDH.
296 *) Add support for key derivation (agreement) in the API, DH method and
300 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
301 public and private key formats. As a side effect these add additional
302 command line functionality not previously available: DSA signatures can be
303 generated and verified using pkeyutl and DH key support and generation in
308 [Oliver Tappe <zooey@hirschkaefer.de>]
310 *) New make target "install_html_docs" installs HTML renditions of the
312 [Oliver Tappe <zooey@hirschkaefer.de>]
314 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
315 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
316 support key and parameter generation and add initial key generation
317 functionality for RSA.
320 *) Add functions for main EVP_PKEY_method operations. The undocumented
321 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
322 EVP_PKEY_{encrypt,decrypt}_old.
325 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
326 key API, doesn't do much yet.
329 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
330 public key algorithms. New option to openssl utility:
331 "list-public-key-algorithms" to print out info.
334 *) Implement the Supported Elliptic Curves Extension for
335 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
338 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
339 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
342 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
343 utilities such as rsa, dsa, dsaparam etc except they process any key
347 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
348 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
349 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
353 *) Initial support for pluggable public key ASN1.
354 De-spaghettify the public key ASN1 handling. Move public and private
355 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
356 algorithm specific handling to a single module within the relevant
357 algorithm directory. Add functions to allow (near) opaque processing
358 of public and private key structures.
361 *) Implement the Supported Point Formats Extension for
362 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
365 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
366 for the psk identity [hint] and the psk callback functions to the
367 SSL_SESSION, SSL and SSL_CTX structure.
370 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
374 SSL_CTX_use_psk_identity_hint
375 SSL_get_psk_identity_hint
377 SSL_use_psk_identity_hint
379 [Mika Kousa and Pasi Eronen of Nokia Corporation]
381 *) Add RFC 3161 compliant time stamp request creation, response generation
382 and response verification functionality.
383 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
385 *) Add initial support for TLS extensions, specifically for the server_name
386 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
387 have new members for a host name. The SSL data structure has an
388 additional member SSL_CTX *initial_ctx so that new sessions can be
389 stored in that context to allow for session resumption, even after the
390 SSL has been switched to a new SSL_CTX in reaction to a client's
391 server_name extension.
393 New functions (subject to change):
396 SSL_get_servername_type()
399 New CTRL codes and macros (subject to change):
401 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
402 - SSL_CTX_set_tlsext_servername_callback()
403 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
404 - SSL_CTX_set_tlsext_servername_arg()
405 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
407 openssl s_client has a new '-servername ...' option.
409 openssl s_server has new options '-servername_host ...', '-cert2 ...',
410 '-key2 ...', '-servername_fatal' (subject to change). This allows
411 testing the HostName extension for a specific single host name ('-cert'
412 and '-key' remain fallbacks for handshakes without HostName
413 negotiation). If the unrecogninzed_name alert has to be sent, this by
414 default is a warning; it becomes fatal with the '-servername_fatal'
417 [Peter Sylvester, Remy Allais, Christophe Renou]
419 *) Whirlpool hash implementation is added.
422 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
423 bn(64,32). Because of instruction set limitations it doesn't have
424 any negative impact on performance. This was done mostly in order
425 to make it possible to share assembler modules, such as bn_mul_mont
426 implementations, between 32- and 64-bit builds without hassle.
429 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
430 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
434 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
435 dedicated Montgomery multiplication procedure, is introduced.
436 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
437 "64-bit" performance on certain 32-bit targets.
440 *) New option SSL_OP_NO_COMP to disable use of compression selectively
441 in SSL structures. New SSL ctrl to set maximum send fragment size.
442 Save memory by seeting the I/O buffer sizes dynamically instead of
443 using the maximum available value.
446 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
447 in addition to the text details.
450 *) Very, very preliminary EXPERIMENTAL support for printing of general
451 ASN1 structures. This currently produces rather ugly output and doesn't
452 handle several customised structures at all.
455 *) Integrated support for PVK file format and some related formats such
456 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
457 these in the 'rsa' and 'dsa' utilities.
460 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
463 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
464 place for the (very old) "NETSCAPE" format certificates which are now
465 handled using new ASN1 code equivalents.
468 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
469 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
470 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
473 *) Modify CRL distribution points extension code to print out previously
474 unsupported fields. Enhance extension setting code to allow setting of
478 *) Add print and set support for Issuing Distribution Point CRL extension.
481 *) Change 'Configure' script to enable Camellia by default.
484 Changes between 0.9.8d and 0.9.8e [XX xxx XXXX]
486 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
487 a ciphersuite string such as "DEFAULT:RSA" cannot enable
488 authentication-only ciphersuites.
491 *) Since AES128 and AES256 (and similarly Camellia128 and
492 Camellia256) share a single mask bit in the logic of
493 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
494 kludge to work properly if AES128 is available and AES256 isn't
495 (or if Camellia128 is available and Camellia256 isn't).
498 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
499 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
500 When a point or a seed is encoded in a BIT STRING, we need to
501 prevent the removal of trailing zero bits to get the proper DER
502 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
503 of a NamedBitList, for which trailing 0 bits need to be removed.)
506 *) Have SSL/TLS server implementation tolerate "mismatched" record
507 protocol version while receiving ClientHello even if the
508 ClientHello is fragmented. (The server can't insist on the
509 particular protocol version it has chosen before the ServerHello
510 message has informed the client about his choice.)
513 *) Add RFC 3779 support.
514 [Rob Austein for ARIN, Ben Laurie]
516 *) Load error codes if they are not already present instead of using a
517 static variable. This allows them to be cleanly unloaded and reloaded.
518 Improve header file function name parsing.
521 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
523 *) Introduce limits to prevent malicious keys being able to
524 cause a denial of service. (CVE-2006-2940)
525 [Steve Henson, Bodo Moeller]
527 *) Fix ASN.1 parsing of certain invalid structures that can result
528 in a denial of service. (CVE-2006-2937) [Steve Henson]
530 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
531 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
533 *) Fix SSL client code which could crash if connecting to a
534 malicious SSLv2 server. (CVE-2006-4343)
535 [Tavis Ormandy and Will Drewry, Google Security Team]
537 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
538 match only those. Before that, "AES256-SHA" would be interpreted
539 as a pattern and match "AES128-SHA" too (since AES128-SHA got
540 the same strength classification in 0.9.7h) as we currently only
541 have a single AES bit in the ciphersuite description bitmap.
542 That change, however, also applied to ciphersuite strings such as
543 "RC4-MD5" that intentionally matched multiple ciphersuites --
544 namely, SSL 2.0 ciphersuites in addition to the more common ones
545 from SSL 3.0/TLS 1.0.
547 So we change the selection algorithm again: Naming an explicit
548 ciphersuite selects this one ciphersuite, and any other similar
549 ciphersuite (same bitmap) from *other* protocol versions.
550 Thus, "RC4-MD5" again will properly select both the SSL 2.0
551 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
553 Since SSL 2.0 does not have any ciphersuites for which the
554 128/256 bit distinction would be relevant, this works for now.
555 The proper fix will be to use different bits for AES128 and
556 AES256, which would have avoided the problems from the beginning;
557 however, bits are scarce, so we can only do this in a new release
558 (not just a patchlevel) when we can change the SSL_CIPHER
559 definition to split the single 'unsigned long mask' bitmap into
560 multiple values to extend the available space.
564 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
566 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
567 (CVE-2006-4339) [Ben Laurie and Google Security Team]
569 *) Add AES IGE and biIGE modes.
572 *) Change the Unix randomness entropy gathering to use poll() when
573 possible instead of select(), since the latter has some
574 undesirable limitations.
575 [Darryl Miles via Richard Levitte and Bodo Moeller]
577 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
578 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
579 cannot be implicitly activated as part of, e.g., the "AES" alias.
580 However, please upgrade to OpenSSL 0.9.9[-dev] for
581 non-experimental use of the ECC ciphersuites to get TLS extension
582 support, which is required for curve and point format negotiation
583 to avoid potential handshake problems.
586 *) Disable rogue ciphersuites:
588 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
589 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
590 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
592 The latter two were purportedly from
593 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
596 Also deactivate the remaining ciphersuites from
597 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
598 unofficial, and the ID has long expired.
601 *) Fix RSA blinding Heisenbug (problems sometimes occured on
602 dual-core machines) and other potential thread-safety issues.
605 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
606 versions), which is now available for royalty-free use
607 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
608 Also, add Camellia TLS ciphersuites from RFC 4132.
610 To minimize changes between patchlevels in the OpenSSL 0.9.8
611 series, Camellia remains excluded from compilation unless OpenSSL
612 is configured with 'enable-camellia'.
615 *) Disable the padding bug check when compression is in use. The padding
616 bug check assumes the first packet is of even length, this is not
617 necessarily true if compresssion is enabled and can result in false
618 positives causing handshake failure. The actual bug test is ancient
619 code so it is hoped that implementations will either have fixed it by
620 now or any which still have the bug do not support compression.
623 Changes between 0.9.8a and 0.9.8b [04 May 2006]
625 *) When applying a cipher rule check to see if string match is an explicit
626 cipher suite and only match that one cipher suite if it is.
629 *) Link in manifests for VC++ if needed.
630 [Austin Ziegler <halostatue@gmail.com>]
632 *) Update support for ECC-based TLS ciphersuites according to
633 draft-ietf-tls-ecc-12.txt with proposed changes (but without
634 TLS extensions, which are supported starting with the 0.9.9
635 branch, not in the OpenSSL 0.9.8 branch).
638 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
639 opaque EVP_CIPHER_CTX handling.
642 *) Fixes and enhancements to zlib compression code. We now only use
643 "zlib1.dll" and use the default __cdecl calling convention on Win32
644 to conform with the standards mentioned here:
645 http://www.zlib.net/DLL_FAQ.txt
646 Static zlib linking now works on Windows and the new --with-zlib-include
647 --with-zlib-lib options to Configure can be used to supply the location
648 of the headers and library. Gracefully handle case where zlib library
652 *) Several fixes and enhancements to the OID generation code. The old code
653 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
654 handle numbers larger than ULONG_MAX, truncated printing and had a
655 non standard OBJ_obj2txt() behaviour.
658 *) Add support for building of engines under engine/ as shared libraries
659 under VC++ build system.
662 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
663 Hopefully, we will not see any false combination of paths any more.
666 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
668 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
669 (part of SSL_OP_ALL). This option used to disable the
670 countermeasure against man-in-the-middle protocol-version
671 rollback in the SSL 2.0 server implementation, which is a bad
672 idea. (CVE-2005-2969)
674 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
675 for Information Security, National Institute of Advanced Industrial
676 Science and Technology [AIST], Japan)]
678 *) Add two function to clear and return the verify parameter flags.
681 *) Keep cipherlists sorted in the source instead of sorting them at
682 runtime, thus removing the need for a lock.
685 *) Avoid some small subgroup attacks in Diffie-Hellman.
686 [Nick Mathewson and Ben Laurie]
688 *) Add functions for well-known primes.
691 *) Extended Windows CE support.
692 [Satoshi Nakamura and Andy Polyakov]
694 *) Initialize SSL_METHOD structures at compile time instead of during
695 runtime, thus removing the need for a lock.
698 *) Make PKCS7_decrypt() work even if no certificate is supplied by
699 attempting to decrypt each encrypted key in turn. Add support to
703 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
705 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
708 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
711 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
712 key into the same file any more.
715 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
718 *) Add -utf8 command line and config file option to 'ca'.
719 [Stefan <stf@udoma.org]
721 *) Removed the macro des_crypt(), as it seems to conflict with some
722 libraries. Use DES_crypt().
725 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
726 involves renaming the source and generated shared-libs for
727 both. The engines will accept the corrected or legacy ids
728 ('ncipher' and '4758_cca' respectively) when binding. NB,
729 this only applies when building 'shared'.
730 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
732 *) Add attribute functions to EVP_PKEY structure. Modify
733 PKCS12_create() to recognize a CSP name attribute and
734 use it. Make -CSP option work again in pkcs12 utility.
737 *) Add new functionality to the bn blinding code:
738 - automatic re-creation of the BN_BLINDING parameters after
739 a fixed number of uses (currently 32)
740 - add new function for parameter creation
741 - introduce flags to control the update behaviour of the
742 BN_BLINDING parameters
743 - hide BN_BLINDING structure
744 Add a second BN_BLINDING slot to the RSA structure to improve
745 performance when a single RSA object is shared among several
749 *) Add support for DTLS.
750 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
752 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
753 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
756 *) Remove buggy and incompletet DH cert support from
757 ssl/ssl_rsa.c and ssl/s3_both.c
760 *) Use SHA-1 instead of MD5 as the default digest algorithm for
761 the apps/openssl applications.
764 *) Compile clean with "-Wall -Wmissing-prototypes
765 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
766 DEBUG_SAFESTACK must also be set.
769 *) Change ./Configure so that certain algorithms can be disabled by default.
770 The new counterpiece to "no-xxx" is "enable-xxx".
772 The patented RC5 and MDC2 algorithms will now be disabled unless
773 "enable-rc5" and "enable-mdc2", respectively, are specified.
775 (IDEA remains enabled despite being patented. This is because IDEA
776 is frequently required for interoperability, and there is no license
777 fee for non-commercial use. As before, "no-idea" can be used to
778 avoid this algorithm.)
782 *) Add processing of proxy certificates (see RFC 3820). This work was
783 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
784 EGEE (Enabling Grids for E-science in Europe).
787 *) RC4 performance overhaul on modern architectures/implementations, such
788 as Intel P4, IA-64 and AMD64.
791 *) New utility extract-section.pl. This can be used specify an alternative
792 section number in a pod file instead of having to treat each file as
793 a separate case in Makefile. This can be done by adding two lines to the
796 =for comment openssl_section:XXX
798 The blank line is mandatory.
802 *) New arguments -certform, -keyform and -pass for s_client and s_server
803 to allow alternative format key and certificate files and passphrase
807 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
808 update associated structures and add various utility functions.
810 Add new policy related verify parameters, include policy checking in
811 standard verify code. Enhance 'smime' application with extra parameters
812 to support policy checking and print out.
815 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
816 Nehemiah processors. These extensions support AES encryption in hardware
817 as well as RNG (though RNG support is currently disabled).
818 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
820 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
823 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
824 [Andy Polyakov and a number of other people]
826 *) Improved PowerPC platform support. Most notably BIGNUM assembler
827 implementation contributed by IBM.
828 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
830 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
831 exponent rather than 'unsigned long'. There is a corresponding change to
832 the new 'rsa_keygen' element of the RSA_METHOD structure.
833 [Jelte Jansen, Geoff Thorpe]
835 *) Functionality for creating the initial serial number file is now
836 moved from CA.pl to the 'ca' utility with a new option -create_serial.
838 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
839 number file to 1, which is bound to cause problems. To avoid
840 the problems while respecting compatibility between different 0.9.7
841 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
842 CA.pl for serial number initialization. With the new release 0.9.8,
843 we can fix the problem directly in the 'ca' utility.)
846 *) Reduced header interdepencies by declaring more opaque objects in
847 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
848 give fewer recursive includes, which could break lazy source code - so
849 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
850 developers should define this symbol when building and using openssl to
851 ensure they track the recommended behaviour, interfaces, [etc], but
852 backwards-compatible behaviour prevails when this isn't defined.
855 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
858 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
859 This will generate a random key of the appropriate length based on the
860 cipher context. The EVP_CIPHER can provide its own random key generation
861 routine to support keys of a specific form. This is used in the des and
862 3des routines to generate a key of the correct parity. Update S/MIME
863 code to use new functions and hence generate correct parity DES keys.
864 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
865 valid (weak or incorrect parity).
868 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
869 as looking them up. This is useful when the verified structure may contain
870 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
871 present unless the new PKCS7_NO_CRL flag is asserted.
874 *) Extend ASN1 oid configuration module. It now additionally accepts the
877 shortName = some long name, 1.2.3.4
880 *) Reimplemented the BN_CTX implementation. There is now no more static
881 limitation on the number of variables it can handle nor the depth of the
882 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
883 information can now expand as required, and rather than having a single
884 static array of bignums, BN_CTX now uses a linked-list of such arrays
885 allowing it to expand on demand whilst maintaining the usefulness of
889 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
890 to allow all RSA operations to function using a single BN_CTX.
893 *) Preliminary support for certificate policy evaluation and checking. This
894 is initially intended to pass the tests outlined in "Conformance Testing
895 of Relying Party Client Certificate Path Processing Logic" v1.07.
898 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
899 remained unused and not that useful. A variety of other little bignum
900 tweaks and fixes have also been made continuing on from the audit (see
904 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
905 associated ASN1, EVP and SSL functions and old ASN1 macros.
908 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
909 and this should never fail. So the return value from the use of
910 BN_set_word() (which can fail due to needless expansion) is now deprecated;
911 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
914 *) BN_CTX_get() should return zero-valued bignums, providing the same
915 initialised value as BN_new().
916 [Geoff Thorpe, suggested by Ulf Möller]
918 *) Support for inhibitAnyPolicy certificate extension.
921 *) An audit of the BIGNUM code is underway, for which debugging code is
922 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
923 is considered valid when processing BIGNUMs, and causes execution to
924 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
925 further steps are taken to deliberately pollute unused data in BIGNUM
926 structures to try and expose faulty code further on. For now, openssl will
927 (in its default mode of operation) continue to tolerate the inconsistent
928 forms that it has tolerated in the past, but authors and packagers should
929 consider trying openssl and their own applications when compiled with
930 these debugging symbols defined. It will help highlight potential bugs in
931 their own code, and will improve the test coverage for OpenSSL itself. At
932 some point, these tighter rules will become openssl's default to improve
933 maintainability, though the assert()s and other overheads will remain only
934 in debugging configurations. See bn.h for more details.
935 [Geoff Thorpe, Nils Larsch, Ulf Möller]
937 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
938 that can only be obtained through BN_CTX_new() (which implicitly
939 initialises it). The presence of this function only made it possible
940 to overwrite an existing structure (and cause memory leaks).
943 *) Because of the callback-based approach for implementing LHASH as a
944 template type, lh_insert() adds opaque objects to hash-tables and
945 lh_doall() or lh_doall_arg() are typically used with a destructor callback
946 to clean up those corresponding objects before destroying the hash table
947 (and losing the object pointers). So some over-zealous constifications in
948 LHASH have been relaxed so that lh_insert() does not take (nor store) the
949 objects as "const" and the lh_doall[_arg] callback wrappers are not
950 prototyped to have "const" restrictions on the object pointers they are
951 given (and so aren't required to cast them away any more).
954 *) The tmdiff.h API was so ugly and minimal that our own timing utility
955 (speed) prefers to use its own implementation. The two implementations
956 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
957 its object type properly exposed (MS_TM) instead of casting to/from "char
958 *". This may still change yet if someone realises MS_TM and "ms_time_***"
959 aren't necessarily the greatest nomenclatures - but this is what was used
960 internally to the implementation so I've used that for now.
963 *) Ensure that deprecated functions do not get compiled when
964 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
965 the self-tests were still using deprecated key-generation functions so
966 these have been updated also.
969 *) Reorganise PKCS#7 code to separate the digest location functionality
970 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
971 New function PKCS7_set_digest() to set the digest type for PKCS#7
972 digestedData type. Add additional code to correctly generate the
973 digestedData type and add support for this type in PKCS7 initialization
977 *) New function PKCS7_set0_type_other() this initializes a PKCS7
978 structure of type "other".
981 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
982 sure the loop does correctly stop and breaking ("division by zero")
983 modulus operations are not performed. The (pre-generated) prime
984 table crypto/bn/bn_prime.h was already correct, but it could not be
985 re-generated on some platforms because of the "division by zero"
986 situation in the script.
987 [Ralf S. Engelschall]
989 *) Update support for ECC-based TLS ciphersuites according to
990 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
991 SHA-1 now is only used for "small" curves (where the
992 representation of a field element takes up to 24 bytes); for
993 larger curves, the field element resulting from ECDH is directly
994 used as premaster secret.
995 [Douglas Stebila (Sun Microsystems Laboratories)]
997 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
998 curve secp160r1 to the tests.
999 [Douglas Stebila (Sun Microsystems Laboratories)]
1001 *) Add the possibility to load symbols globally with DSO.
1002 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
1004 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
1005 control of the error stack.
1008 *) Add support for STORE in ENGINE.
1011 *) Add the STORE type. The intention is to provide a common interface
1012 to certificate and key stores, be they simple file-based stores, or
1013 HSM-type store, or LDAP stores, or...
1014 NOTE: The code is currently UNTESTED and isn't really used anywhere.
1017 *) Add a generic structure called OPENSSL_ITEM. This can be used to
1018 pass a list of arguments to any function as well as provide a way
1019 for a function to pass data back to the caller.
1022 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
1023 works like BUF_strdup() but can be used to duplicate a portion of
1024 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
1028 *) Add the function sk_find_ex() which works like sk_find(), but will
1029 return an index to an element even if an exact match couldn't be
1030 found. The index is guaranteed to point at the element where the
1031 searched-for key would be inserted to preserve sorting order.
1034 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
1035 takes an extra flags argument for optional functionality. Currently,
1036 the following flags are defined:
1038 OBJ_BSEARCH_VALUE_ON_NOMATCH
1039 This one gets OBJ_bsearch_ex() to return a pointer to the first
1040 element where the comparing function returns a negative or zero
1043 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
1044 This one gets OBJ_bsearch_ex() to return a pointer to the first
1045 element where the comparing function returns zero. This is useful
1046 if there are more than one element where the comparing function
1050 *) Make it possible to create self-signed certificates with 'openssl ca'
1051 in such a way that the self-signed certificate becomes part of the
1052 CA database and uses the same mechanisms for serial number generation
1053 as all other certificate signing. The new flag '-selfsign' enables
1054 this functionality. Adapt CA.sh and CA.pl.in.
1057 *) Add functionality to check the public key of a certificate request
1058 against a given private. This is useful to check that a certificate
1059 request can be signed by that key (self-signing).
1062 *) Make it possible to have multiple active certificates with the same
1063 subject in the CA index file. This is done only if the keyword
1064 'unique_subject' is set to 'no' in the main CA section (default
1065 if 'CA_default') of the configuration file. The value is saved
1066 with the database itself in a separate index attribute file,
1067 named like the index file with '.attr' appended to the name.
1070 *) Generate muti valued AVAs using '+' notation in config files for
1074 *) Support for nameConstraints certificate extension.
1077 *) Support for policyConstraints certificate extension.
1080 *) Support for policyMappings certificate extension.
1083 *) Make sure the default DSA_METHOD implementation only uses its
1084 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
1085 and change its own handlers to be NULL so as to remove unnecessary
1086 indirection. This lets alternative implementations fallback to the
1087 default implementation more easily.
1090 *) Support for directoryName in GeneralName related extensions
1094 *) Make it possible to link applications using Makefile.shared.
1095 Make that possible even when linking against static libraries!
1098 *) Support for single pass processing for S/MIME signing. This now
1099 means that S/MIME signing can be done from a pipe, in addition
1100 cleartext signing (multipart/signed type) is effectively streaming
1101 and the signed data does not need to be all held in memory.
1103 This is done with a new flag PKCS7_STREAM. When this flag is set
1104 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
1105 is done after the data is output (and digests calculated) in
1106 SMIME_write_PKCS7().
1109 *) Add full support for -rpath/-R, both in shared libraries and
1110 applications, at least on the platforms where it's known how
1114 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
1115 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
1116 will now compute a table of multiples of the generator that
1117 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
1118 faster (notably in the case of a single point multiplication,
1119 scalar * generator).
1120 [Nils Larsch, Bodo Moeller]
1122 *) IPv6 support for certificate extensions. The various extensions
1123 which use the IP:a.b.c.d can now take IPv6 addresses using the
1124 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
1128 *) Added an ENGINE that implements RSA by performing private key
1129 exponentiations with the GMP library. The conversions to and from
1130 GMP's mpz_t format aren't optimised nor are any montgomery forms
1131 cached, and on x86 it appears OpenSSL's own performance has caught up.
1132 However there are likely to be other architectures where GMP could
1133 provide a boost. This ENGINE is not built in by default, but it can be
1134 specified at Configure time and should be accompanied by the necessary
1135 linker additions, eg;
1136 ./config -DOPENSSL_USE_GMP -lgmp
1139 *) "openssl engine" will not display ENGINE/DSO load failure errors when
1140 testing availability of engines with "-t" - the old behaviour is
1141 produced by increasing the feature's verbosity with "-tt".
1144 *) ECDSA routines: under certain error conditions uninitialized BN objects
1145 could be freed. Solution: make sure initialization is performed early
1146 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
1150 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
1151 and DH_METHOD (eg. by ENGINE implementations) to override the normal
1152 software implementations. For DSA and DH, parameter generation can
1153 also be overriden by providing the appropriate method callbacks.
1156 *) Change the "progress" mechanism used in key-generation and
1157 primality testing to functions that take a new BN_GENCB pointer in
1158 place of callback/argument pairs. The new API functions have "_ex"
1159 postfixes and the older functions are reimplemented as wrappers for
1160 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
1161 declarations of the old functions to help (graceful) attempts to
1162 migrate to the new functions. Also, the new key-generation API
1163 functions operate on a caller-supplied key-structure and return
1164 success/failure rather than returning a key or NULL - this is to
1165 help make "keygen" another member function of RSA_METHOD etc.
1167 Example for using the new callback interface:
1169 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
1173 BN_GENCB_set(&my_cb, my_callback, my_arg);
1175 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
1176 /* For the meaning of a, b in calls to my_callback(), see the
1177 * documentation of the function that calls the callback.
1178 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
1179 * my_callback should return 1 if it wants BN_is_prime_ex()
1180 * to continue, or 0 to stop.
1185 *) Change the ZLIB compression method to be stateful, and make it
1186 available to TLS with the number defined in
1187 draft-ietf-tls-compression-04.txt.
1190 *) Add the ASN.1 structures and functions for CertificatePair, which
1191 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
1193 CertificatePair ::= SEQUENCE {
1194 forward [0] Certificate OPTIONAL,
1195 reverse [1] Certificate OPTIONAL,
1196 -- at least one of the pair shall be present -- }
1198 Also implement the PEM functions to read and write certificate
1199 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
1201 This needed to be defined, mostly for the sake of the LDAP
1202 attribute crossCertificatePair, but may prove useful elsewhere as
1206 *) Make it possible to inhibit symlinking of shared libraries in
1207 Makefile.shared, for Cygwin's sake.
1210 *) Extend the BIGNUM API by creating a function
1211 void BN_set_negative(BIGNUM *a, int neg);
1212 and a macro that behave like
1213 int BN_is_negative(const BIGNUM *a);
1215 to avoid the need to access 'a->neg' directly in applications.
1218 *) Implement fast modular reduction for pseudo-Mersenne primes
1219 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
1220 EC_GROUP_new_curve_GFp() will now automatically use this
1222 [Nils Larsch <nla@trustcenter.de>]
1224 *) Add new lock type (CRYPTO_LOCK_BN).
1227 *) Change the ENGINE framework to automatically load engines
1228 dynamically from specific directories unless they could be
1229 found to already be built in or loaded. Move all the
1230 current engines except for the cryptodev one to a new
1232 The engines in engines/ are built as shared libraries if
1233 the "shared" options was given to ./Configure or ./config.
1234 Otherwise, they are inserted in libcrypto.a.
1235 /usr/local/ssl/engines is the default directory for dynamic
1236 engines, but that can be overriden at configure time through
1237 the usual use of --prefix and/or --openssldir, and at run
1238 time with the environment variable OPENSSL_ENGINES.
1239 [Geoff Thorpe and Richard Levitte]
1241 *) Add Makefile.shared, a helper makefile to build shared
1242 libraries. Addapt Makefile.org.
1245 *) Add version info to Win32 DLLs.
1246 [Peter 'Luna' Runestig" <peter@runestig.com>]
1248 *) Add new 'medium level' PKCS#12 API. Certificates and keys
1249 can be added using this API to created arbitrary PKCS#12
1250 files while avoiding the low level API.
1252 New options to PKCS12_create(), key or cert can be NULL and
1253 will then be omitted from the output file. The encryption
1254 algorithm NIDs can be set to -1 for no encryption, the mac
1255 iteration count can be set to 0 to omit the mac.
1257 Enhance pkcs12 utility by making the -nokeys and -nocerts
1258 options work when creating a PKCS#12 file. New option -nomac
1259 to omit the mac, NONE can be set for an encryption algorithm.
1260 New code is modified to use the enhanced PKCS12_create()
1261 instead of the low level API.
1264 *) Extend ASN1 encoder to support indefinite length constructed
1265 encoding. This can output sequences tags and octet strings in
1266 this form. Modify pk7_asn1.c to support indefinite length
1267 encoding. This is experimental and needs additional code to
1268 be useful, such as an ASN1 bio and some enhanced streaming
1271 Extend template encode functionality so that tagging is passed
1272 down to the template encoder.
1275 *) Let 'openssl req' fail if an argument to '-newkey' is not
1276 recognized instead of using RSA as a default.
1279 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
1280 As these are not official, they are not included in "ALL";
1281 the "ECCdraft" ciphersuite group alias can be used to select them.
1282 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
1284 *) Add ECDH engine support.
1285 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
1287 *) Add ECDH in new directory crypto/ecdh/.
1288 [Douglas Stebila (Sun Microsystems Laboratories)]
1290 *) Let BN_rand_range() abort with an error after 100 iterations
1291 without success (which indicates a broken PRNG).
1294 *) Change BN_mod_sqrt() so that it verifies that the input value
1295 is really the square of the return value. (Previously,
1296 BN_mod_sqrt would show GIGO behaviour.)
1299 *) Add named elliptic curves over binary fields from X9.62, SECG,
1300 and WAP/WTLS; add OIDs that were still missing.
1302 [Sheueling Chang Shantz and Douglas Stebila
1303 (Sun Microsystems Laboratories)]
1305 *) Extend the EC library for elliptic curves over binary fields
1306 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
1309 EC_GF2m_simple_method
1313 EC_GROUP_new_curve_GF2m
1314 EC_GROUP_set_curve_GF2m
1315 EC_GROUP_get_curve_GF2m
1316 EC_POINT_set_affine_coordinates_GF2m
1317 EC_POINT_get_affine_coordinates_GF2m
1318 EC_POINT_set_compressed_coordinates_GF2m
1320 Point compression for binary fields is disabled by default for
1321 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
1324 As binary polynomials are represented as BIGNUMs, various members
1325 of the EC_GROUP and EC_POINT data structures can be shared
1326 between the implementations for prime fields and binary fields;
1327 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
1328 are essentially identical to their ..._GFp counterparts.
1329 (For simplicity, the '..._GFp' prefix has been dropped from
1330 various internal method names.)
1332 An internal 'field_div' method (similar to 'field_mul' and
1333 'field_sqr') has been added; this is used only for binary fields.
1335 [Sheueling Chang Shantz and Douglas Stebila
1336 (Sun Microsystems Laboratories)]
1338 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
1339 through methods ('mul', 'precompute_mult').
1341 The generic implementations (now internally called 'ec_wNAF_mul'
1342 and 'ec_wNAF_precomputed_mult') remain the default if these
1343 methods are undefined.
1345 [Sheueling Chang Shantz and Douglas Stebila
1346 (Sun Microsystems Laboratories)]
1348 *) New function EC_GROUP_get_degree, which is defined through
1349 EC_METHOD. For curves over prime fields, this returns the bit
1350 length of the modulus.
1352 [Sheueling Chang Shantz and Douglas Stebila
1353 (Sun Microsystems Laboratories)]
1355 *) New functions EC_GROUP_dup, EC_POINT_dup.
1356 (These simply call ..._new and ..._copy).
1358 [Sheueling Chang Shantz and Douglas Stebila
1359 (Sun Microsystems Laboratories)]
1361 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
1362 Polynomials are represented as BIGNUMs (where the sign bit is not
1363 used) in the following functions [macros]:
1366 BN_GF2m_sub [= BN_GF2m_add]
1367 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
1368 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
1369 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
1371 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
1372 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
1373 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
1374 BN_GF2m_cmp [= BN_ucmp]
1376 (Note that only the 'mod' functions are actually for fields GF(2^m).
1377 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
1379 For some functions, an the irreducible polynomial defining a
1380 field can be given as an 'unsigned int[]' with strictly
1381 decreasing elements giving the indices of those bits that are set;
1382 i.e., p[] represents the polynomial
1383 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
1385 p[0] > p[1] > ... > p[k] = 0.
1386 This applies to the following functions:
1391 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
1392 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
1394 BN_GF2m_mod_sqrt_arr
1395 BN_GF2m_mod_solve_quad_arr
1399 Conversion can be performed by the following functions:
1404 bntest.c has additional tests for binary polynomial arithmetic.
1406 Two implementations for BN_GF2m_mod_div() are available.
1407 The default algorithm simply uses BN_GF2m_mod_inv() and
1408 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
1409 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
1410 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
1412 [Sheueling Chang Shantz and Douglas Stebila
1413 (Sun Microsystems Laboratories)]
1415 *) Add new error code 'ERR_R_DISABLED' that can be used when some
1416 functionality is disabled at compile-time.
1417 [Douglas Stebila <douglas.stebila@sun.com>]
1419 *) Change default behaviour of 'openssl asn1parse' so that more
1420 information is visible when viewing, e.g., a certificate:
1422 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
1423 mode the content of non-printable OCTET STRINGs is output in a
1424 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
1425 avoid the appearance of a printable string.
1426 [Nils Larsch <nla@trustcenter.de>]
1428 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
1430 EC_GROUP_set_asn1_flag()
1431 EC_GROUP_get_asn1_flag()
1432 EC_GROUP_set_point_conversion_form()
1433 EC_GROUP_get_point_conversion_form()
1434 These control ASN1 encoding details:
1435 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
1436 has been set to OPENSSL_EC_NAMED_CURVE.
1437 - Points are encoded in uncompressed form by default; options for
1438 asn1_for are as for point2oct, namely
1439 POINT_CONVERSION_COMPRESSED
1440 POINT_CONVERSION_UNCOMPRESSED
1441 POINT_CONVERSION_HYBRID
1443 Also add 'seed' and 'seed_len' members to EC_GROUP with access
1446 EC_GROUP_get0_seed()
1447 EC_GROUP_get_seed_len()
1448 This is used only for ASN1 purposes (so far).
1449 [Nils Larsch <nla@trustcenter.de>]
1451 *) Add 'field_type' member to EC_METHOD, which holds the NID
1452 of the appropriate field type OID. The new function
1453 EC_METHOD_get_field_type() returns this value.
1454 [Nils Larsch <nla@trustcenter.de>]
1459 EC_POINT_point2hex()
1460 EC_POINT_hex2point()
1461 providing useful interfaces to EC_POINT_point2oct() and
1462 EC_POINT_oct2point().
1463 [Nils Larsch <nla@trustcenter.de>]
1465 *) Change internals of the EC library so that the functions
1466 EC_GROUP_set_generator()
1467 EC_GROUP_get_generator()
1468 EC_GROUP_get_order()
1469 EC_GROUP_get_cofactor()
1470 are implemented directly in crypto/ec/ec_lib.c and not dispatched
1471 to methods, which would lead to unnecessary code duplication when
1472 adding different types of curves.
1473 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
1475 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
1476 arithmetic, and such that modified wNAFs are generated
1477 (which avoid length expansion in many cases).
1480 *) Add a function EC_GROUP_check_discriminant() (defined via
1481 EC_METHOD) that verifies that the curve discriminant is non-zero.
1483 Add a function EC_GROUP_check() that makes some sanity tests
1484 on a EC_GROUP, its generator and order. This includes
1485 EC_GROUP_check_discriminant().
1486 [Nils Larsch <nla@trustcenter.de>]
1488 *) Add ECDSA in new directory crypto/ecdsa/.
1490 Add applications 'openssl ecparam' and 'openssl ecdsa'
1491 (these are based on 'openssl dsaparam' and 'openssl dsa').
1493 ECDSA support is also included in various other files across the
1494 library. Most notably,
1495 - 'openssl req' now has a '-newkey ecdsa:file' option;
1496 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
1497 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
1498 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
1499 them suitable for ECDSA where domain parameters must be
1500 extracted before the specific public key;
1501 - ECDSA engine support has been added.
1502 [Nils Larsch <nla@trustcenter.de>]
1504 *) Include some named elliptic curves, and add OIDs from X9.62,
1505 SECG, and WAP/WTLS. Each curve can be obtained from the new
1507 EC_GROUP_new_by_curve_name(),
1508 and the list of available named curves can be obtained with
1509 EC_get_builtin_curves().
1510 Also add a 'curve_name' member to EC_GROUP objects, which can be
1512 EC_GROUP_set_curve_name()
1513 EC_GROUP_get_curve_name()
1514 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
1516 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
1517 was actually never needed) and in BN_mul(). The removal in BN_mul()
1518 required a small change in bn_mul_part_recursive() and the addition
1519 of the functions bn_cmp_part_words(), bn_sub_part_words() and
1520 bn_add_part_words(), which do the same thing as bn_cmp_words(),
1521 bn_sub_words() and bn_add_words() except they take arrays with
1525 Changes between 0.9.7l and 0.9.7m [xx XXX xxxx]
1527 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1528 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1529 authentication-only ciphersuites.
1532 *) Since AES128 and AES256 share a single mask bit in the logic of
1533 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1534 kludge to work properly if AES128 is available and AES256 isn't.
1537 *) Have SSL/TLS server implementation tolerate "mismatched" record
1538 protocol version while receiving ClientHello even if the
1539 ClientHello is fragmented. (The server can't insist on the
1540 particular protocol version it has chosen before the ServerHello
1541 message has informed the client about his choice.)
1544 *) Load error codes if they are not already present instead of using a
1545 static variable. This allows them to be cleanly unloaded and reloaded.
1548 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
1550 *) Introduce limits to prevent malicious keys being able to
1551 cause a denial of service. (CVE-2006-2940)
1552 [Steve Henson, Bodo Moeller]
1554 *) Fix ASN.1 parsing of certain invalid structures that can result
1555 in a denial of service. (CVE-2006-2937) [Steve Henson]
1557 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1558 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1560 *) Fix SSL client code which could crash if connecting to a
1561 malicious SSLv2 server. (CVE-2006-4343)
1562 [Tavis Ormandy and Will Drewry, Google Security Team]
1564 *) Change ciphersuite string processing so that an explicit
1565 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
1566 will no longer include "AES128-SHA"), and any other similar
1567 ciphersuite (same bitmap) from *other* protocol versions (so that
1568 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
1569 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
1570 changes from 0.9.8b and 0.9.8d.
1573 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
1575 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1576 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1578 *) Change the Unix randomness entropy gathering to use poll() when
1579 possible instead of select(), since the latter has some
1580 undesirable limitations.
1581 [Darryl Miles via Richard Levitte and Bodo Moeller]
1583 *) Disable rogue ciphersuites:
1585 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1586 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1587 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1589 The latter two were purportedly from
1590 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1593 Also deactive the remaining ciphersuites from
1594 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1595 unofficial, and the ID has long expired.
1598 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1599 dual-core machines) and other potential thread-safety issues.
1602 Changes between 0.9.7i and 0.9.7j [04 May 2006]
1604 *) Adapt fipsld and the build system to link against the validated FIPS
1605 module in FIPS mode.
1608 *) Fixes for VC++ 2005 build under Windows.
1611 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
1612 from a Windows bash shell such as MSYS. It is autodetected from the
1613 "config" script when run from a VC++ environment. Modify standard VC++
1614 build to use fipscanister.o from the GNU make build.
1617 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
1619 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
1620 The value now differs depending on if you build for FIPS or not.
1621 BEWARE! A program linked with a shared FIPSed libcrypto can't be
1622 safely run with a non-FIPSed libcrypto, as it may crash because of
1623 the difference induced by this change.
1626 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
1628 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1629 (part of SSL_OP_ALL). This option used to disable the
1630 countermeasure against man-in-the-middle protocol-version
1631 rollback in the SSL 2.0 server implementation, which is a bad
1632 idea. (CVE-2005-2969)
1634 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1635 for Information Security, National Institute of Advanced Industrial
1636 Science and Technology [AIST], Japan)]
1638 *) Minimal support for X9.31 signatures and PSS padding modes. This is
1639 mainly for FIPS compliance and not fully integrated at this stage.
1642 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
1643 the exponentiation using a fixed-length exponent. (Otherwise,
1644 the information leaked through timing could expose the secret key
1645 after many signatures; cf. Bleichenbacher's attack on DSA with
1649 *) Make a new fixed-window mod_exp implementation the default for
1650 RSA, DSA, and DH private-key operations so that the sequence of
1651 squares and multiplies and the memory access pattern are
1652 independent of the particular secret key. This will mitigate
1653 cache-timing and potential related attacks.
1655 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
1656 and this is automatically used by BN_mod_exp_mont() if the new flag
1657 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
1658 will use this BN flag for private exponents unless the flag
1659 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
1660 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
1662 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
1664 *) Change the client implementation for SSLv23_method() and
1665 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
1666 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
1667 (Previously, the SSL 2.0 backwards compatible Client Hello
1668 message format would be used even with SSL_OP_NO_SSLv2.)
1671 *) Add support for smime-type MIME parameter in S/MIME messages which some
1675 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
1676 a threadsafe manner. Modify rsa code to use new function and add calls
1677 to dsa and dh code (which had race conditions before).
1680 *) Include the fixed error library code in the C error file definitions
1681 instead of fixing them up at runtime. This keeps the error code
1682 structures constant.
1685 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
1687 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
1690 *) Fixes for newer kerberos headers. NB: the casts are needed because
1691 the 'length' field is signed on one version and unsigned on another
1692 with no (?) obvious way to tell the difference, without these VC++
1693 complains. Also the "definition" of FAR (blank) is no longer included
1694 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
1695 some needed definitions.
1698 *) Undo Cygwin change.
1701 *) Added support for proxy certificates according to RFC 3820.
1702 Because they may be a security thread to unaware applications,
1703 they must be explicitely allowed in run-time. See
1704 docs/HOWTO/proxy_certificates.txt for further information.
1707 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
1709 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
1710 server and client random values. Previously
1711 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
1712 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
1714 This change has negligible security impact because:
1716 1. Server and client random values still have 24 bytes of pseudo random
1719 2. Server and client random values are sent in the clear in the initial
1722 3. The master secret is derived using the premaster secret (48 bytes in
1723 size for static RSA ciphersuites) as well as client server and random
1726 The OpenSSL team would like to thank the UK NISCC for bringing this issue
1729 [Stephen Henson, reported by UK NISCC]
1731 *) Use Windows randomness collection on Cygwin.
1734 *) Fix hang in EGD/PRNGD query when communication socket is closed
1735 prematurely by EGD/PRNGD.
1736 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
1738 *) Prompt for pass phrases when appropriate for PKCS12 input format.
1741 *) Back-port of selected performance improvements from development
1742 branch, as well as improved support for PowerPC platforms.
1745 *) Add lots of checks for memory allocation failure, error codes to indicate
1746 failure and freeing up memory if a failure occurs.
1747 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
1749 *) Add new -passin argument to dgst.
1752 *) Perform some character comparisons of different types in X509_NAME_cmp:
1753 this is needed for some certificates that reencode DNs into UTF8Strings
1754 (in violation of RFC3280) and can't or wont issue name rollover
1758 *) Make an explicit check during certificate validation to see that
1759 the CA setting in each certificate on the chain is correct. As a
1760 side effect always do the following basic checks on extensions,
1761 not just when there's an associated purpose to the check:
1763 - if there is an unhandled critical extension (unless the user
1764 has chosen to ignore this fault)
1765 - if the path length has been exceeded (if one is set at all)
1766 - that certain extensions fit the associated purpose (if one has
1770 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
1772 *) Avoid a race condition when CRLs are checked in a multi threaded
1773 environment. This would happen due to the reordering of the revoked
1774 entries during signature checking and serial number lookup. Now the
1775 encoding is cached and the serial number sort performed under a lock.
1776 Add new STACK function sk_is_sorted().
1779 *) Add Delta CRL to the extension code.
1782 *) Various fixes to s3_pkt.c so alerts are sent properly.
1783 [David Holmes <d.holmes@f5.com>]
1785 *) Reduce the chances of duplicate issuer name and serial numbers (in
1786 violation of RFC3280) using the OpenSSL certificate creation utilities.
1787 This is done by creating a random 64 bit value for the initial serial
1788 number when a serial number file is created or when a self signed
1789 certificate is created using 'openssl req -x509'. The initial serial
1790 number file is created using 'openssl x509 -next_serial' in CA.pl
1791 rather than being initialized to 1.
1794 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
1796 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
1797 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
1798 [Joe Orton, Steve Henson]
1800 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
1802 [Joe Orton, Steve Henson]
1804 *) Make it possible to have multiple active certificates with the same
1805 subject in the CA index file. This is done only if the keyword
1806 'unique_subject' is set to 'no' in the main CA section (default
1807 if 'CA_default') of the configuration file. The value is saved
1808 with the database itself in a separate index attribute file,
1809 named like the index file with '.attr' appended to the name.
1812 *) X509 verify fixes. Disable broken certificate workarounds when
1813 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
1814 keyUsage extension present. Don't accept CRLs with unhandled critical
1815 extensions: since verify currently doesn't process CRL extensions this
1816 rejects a CRL with *any* critical extensions. Add new verify error codes
1820 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
1821 A clarification of RFC2560 will require the use of OCTET STRINGs and
1822 some implementations cannot handle the current raw format. Since OpenSSL
1823 copies and compares OCSP nonces as opaque blobs without any attempt at
1824 parsing them this should not create any compatibility issues.
1827 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
1828 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
1829 this HMAC (and other) operations are several times slower than OpenSSL
1833 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
1834 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1836 *) Use the correct content when signing type "other".
1839 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
1841 *) Fix various bugs revealed by running the NISCC test suite:
1843 Stop out of bounds reads in the ASN1 code when presented with
1844 invalid tags (CVE-2003-0543 and CVE-2003-0544).
1846 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
1848 If verify callback ignores invalid public key errors don't try to check
1849 certificate signature with the NULL public key.
1853 *) New -ignore_err option in ocsp application to stop the server
1854 exiting on the first error in a request.
1857 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
1858 if the server requested one: as stated in TLS 1.0 and SSL 3.0
1862 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
1863 extra data after the compression methods not only for TLS 1.0
1864 but also for SSL 3.0 (as required by the specification).
1865 [Bodo Moeller; problem pointed out by Matthias Loepfe]
1867 *) Change X509_certificate_type() to mark the key as exported/exportable
1868 when it's 512 *bits* long, not 512 bytes.
1871 *) Change AES_cbc_encrypt() so it outputs exact multiple of
1872 blocks during encryption.
1875 *) Various fixes to base64 BIO and non blocking I/O. On write
1876 flushes were not handled properly if the BIO retried. On read
1877 data was not being buffered properly and had various logic bugs.
1878 This also affects blocking I/O when the data being decoded is a
1882 *) Various S/MIME bugfixes and compatibility changes:
1883 output correct application/pkcs7 MIME type if
1884 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
1885 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
1886 of files as .eml work). Correctly handle very long lines in MIME
1890 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
1892 *) Countermeasure against the Klima-Pokorny-Rosa extension of
1893 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
1894 a protocol version number mismatch like a decryption error
1895 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
1898 *) Turn on RSA blinding by default in the default implementation
1899 to avoid a timing attack. Applications that don't want it can call
1900 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
1901 They would be ill-advised to do so in most cases.
1902 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
1904 *) Change RSA blinding code so that it works when the PRNG is not
1905 seeded (in this case, the secret RSA exponent is abused as
1906 an unpredictable seed -- if it is not unpredictable, there
1907 is no point in blinding anyway). Make RSA blinding thread-safe
1908 by remembering the creator's thread ID in rsa->blinding and
1909 having all other threads use local one-time blinding factors
1910 (this requires more computation than sharing rsa->blinding, but
1911 avoids excessive locking; and if an RSA object is not shared
1912 between threads, blinding will still be very fast).
1915 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
1916 ENGINE as defaults for all supported algorithms irrespective of
1917 the 'flags' parameter. 'flags' is now honoured, so applications
1918 should make sure they are passing it correctly.
1921 *) Target "mingw" now allows native Windows code to be generated in
1922 the Cygwin environment as well as with the MinGW compiler.
1925 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
1927 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
1928 via timing by performing a MAC computation even if incorrrect
1929 block cipher padding has been found. This is a countermeasure
1930 against active attacks where the attacker has to distinguish
1931 between bad padding and a MAC verification error. (CVE-2003-0078)
1933 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
1934 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
1935 Martin Vuagnoux (EPFL, Ilion)]
1937 *) Make the no-err option work as intended. The intention with no-err
1938 is not to have the whole error stack handling routines removed from
1939 libcrypto, it's only intended to remove all the function name and
1940 reason texts, thereby removing some of the footprint that may not
1941 be interesting if those errors aren't displayed anyway.
1943 NOTE: it's still possible for any application or module to have it's
1944 own set of error texts inserted. The routines are there, just not
1945 used by default when no-err is given.
1948 *) Add support for FreeBSD on IA64.
1949 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
1951 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
1952 Kerberos function mit_des_cbc_cksum(). Before this change,
1953 the value returned by DES_cbc_cksum() was like the one from
1954 mit_des_cbc_cksum(), except the bytes were swapped.
1955 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
1957 *) Allow an application to disable the automatic SSL chain building.
1958 Before this a rather primitive chain build was always performed in
1959 ssl3_output_cert_chain(): an application had no way to send the
1960 correct chain if the automatic operation produced an incorrect result.
1962 Now the chain builder is disabled if either:
1964 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
1966 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
1968 The reasoning behind this is that an application would not want the
1969 auto chain building to take place if extra chain certificates are
1970 present and it might also want a means of sending no additional
1971 certificates (for example the chain has two certificates and the
1975 *) Add the possibility to build without the ENGINE framework.
1976 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1978 *) Under Win32 gmtime() can return NULL: check return value in
1979 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
1982 *) DSA routines: under certain error conditions uninitialized BN objects
1983 could be freed. Solution: make sure initialization is performed early
1984 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
1985 Nils Larsch <nla@trustcenter.de> via PR#459)
1988 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
1989 checked on reconnect on the client side, therefore session resumption
1990 could still fail with a "ssl session id is different" error. This
1991 behaviour is masked when SSL_OP_ALL is used due to
1992 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
1993 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1994 followup to PR #377.
1997 *) IA-32 assembler support enhancements: unified ELF targets, support
1998 for SCO/Caldera platforms, fix for Cygwin shared build.
2001 *) Add support for FreeBSD on sparc64. As a consequence, support for
2002 FreeBSD on non-x86 processors is separate from x86 processors on
2003 the config script, much like the NetBSD support.
2004 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
2006 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
2008 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
2011 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
2012 code (06) was taken as the first octet of the session ID and the last
2013 octet was ignored consequently. As a result SSLv2 client side session
2014 caching could not have worked due to the session ID mismatch between
2016 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2020 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
2021 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
2025 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
2026 seems that in spite of existing for more than a year, many application
2027 author have done nothing to provide the necessary callbacks, which
2028 means that this particular engine will not work properly anywhere.
2029 This is a very unfortunate situation which forces us, in the name
2030 of usability, to give the hw_ncipher.c a static lock, which is part
2032 NOTE: This is for the 0.9.7 series ONLY. This hack will never
2033 appear in 0.9.8 or later. We EXPECT application authors to have
2034 dealt properly with this when 0.9.8 is released (unless we actually
2035 make such changes in the libcrypto locking code that changes will
2036 have to be made anyway).
2039 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
2040 octets have been read, EOF or an error occurs. Without this change
2041 some truncated ASN1 structures will not produce an error.
2044 *) Disable Heimdal support, since it hasn't been fully implemented.
2045 Still give the possibility to force the use of Heimdal, but with
2046 warnings and a request that patches get sent to openssl-dev.
2049 *) Add the VC-CE target, introduce the WINCE sysname, and add
2050 INSTALL.WCE and appropriate conditionals to make it build.
2051 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2053 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
2054 cygssl-x.y.z.dll, where x, y and z are the major, minor and
2055 edit numbers of the version.
2056 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
2058 *) Introduce safe string copy and catenation functions
2059 (BUF_strlcpy() and BUF_strlcat()).
2060 [Ben Laurie (CHATS) and Richard Levitte]
2062 *) Avoid using fixed-size buffers for one-line DNs.
2063 [Ben Laurie (CHATS)]
2065 *) Add BUF_MEM_grow_clean() to avoid information leakage when
2066 resizing buffers containing secrets, and use where appropriate.
2067 [Ben Laurie (CHATS)]
2069 *) Avoid using fixed size buffers for configuration file location.
2070 [Ben Laurie (CHATS)]
2072 *) Avoid filename truncation for various CA files.
2073 [Ben Laurie (CHATS)]
2075 *) Use sizeof in preference to magic numbers.
2076 [Ben Laurie (CHATS)]
2078 *) Avoid filename truncation in cert requests.
2079 [Ben Laurie (CHATS)]
2081 *) Add assertions to check for (supposedly impossible) buffer
2083 [Ben Laurie (CHATS)]
2085 *) Don't cache truncated DNS entries in the local cache (this could
2086 potentially lead to a spoofing attack).
2087 [Ben Laurie (CHATS)]
2089 *) Fix various buffers to be large enough for hex/decimal
2090 representations in a platform independent manner.
2091 [Ben Laurie (CHATS)]
2093 *) Add CRYPTO_realloc_clean() to avoid information leakage when
2094 resizing buffers containing secrets, and use where appropriate.
2095 [Ben Laurie (CHATS)]
2097 *) Add BIO_indent() to avoid much slightly worrying code to do
2099 [Ben Laurie (CHATS)]
2101 *) Convert sprintf()/BIO_puts() to BIO_printf().
2102 [Ben Laurie (CHATS)]
2104 *) buffer_gets() could terminate with the buffer only half
2106 [Ben Laurie (CHATS)]
2108 *) Add assertions to prevent user-supplied crypto functions from
2109 overflowing internal buffers by having large block sizes, etc.
2110 [Ben Laurie (CHATS)]
2112 *) New OPENSSL_assert() macro (similar to assert(), but enabled
2114 [Ben Laurie (CHATS)]
2116 *) Eliminate unused copy of key in RC4.
2117 [Ben Laurie (CHATS)]
2119 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
2120 [Ben Laurie (CHATS)]
2122 *) Fix off-by-one error in EGD path.
2123 [Ben Laurie (CHATS)]
2125 *) If RANDFILE path is too long, ignore instead of truncating.
2126 [Ben Laurie (CHATS)]
2128 *) Eliminate unused and incorrectly sized X.509 structure
2130 [Ben Laurie (CHATS)]
2132 *) Eliminate unused and dangerous function knumber().
2133 [Ben Laurie (CHATS)]
2135 *) Eliminate unused and dangerous structure, KSSL_ERR.
2136 [Ben Laurie (CHATS)]
2138 *) Protect against overlong session ID context length in an encoded
2139 session object. Since these are local, this does not appear to be
2141 [Ben Laurie (CHATS)]
2143 *) Change from security patch (see 0.9.6e below) that did not affect
2144 the 0.9.6 release series:
2146 Remote buffer overflow in SSL3 protocol - an attacker could
2147 supply an oversized master key in Kerberos-enabled versions.
2149 [Ben Laurie (CHATS)]
2151 *) Change the SSL kerb5 codes to match RFC 2712.
2154 *) Make -nameopt work fully for req and add -reqopt switch.
2155 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
2157 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
2158 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
2160 *) Make sure tests can be performed even if the corresponding algorithms
2161 have been removed entirely. This was also the last step to make
2162 OpenSSL compilable with DJGPP under all reasonable conditions.
2163 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
2165 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
2166 to allow version independent disabling of normally unselected ciphers,
2167 which may be activated as a side-effect of selecting a single cipher.
2169 (E.g., cipher list string "RSA" enables ciphersuites that are left
2170 out of "ALL" because they do not provide symmetric encryption.
2171 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
2172 [Lutz Jaenicke, Bodo Moeller]
2174 *) Add appropriate support for separate platform-dependent build
2175 directories. The recommended way to make a platform-dependent
2176 build directory is the following (tested on Linux), maybe with
2179 # Place yourself outside of the OpenSSL source tree. In
2180 # this example, the environment variable OPENSSL_SOURCE
2181 # is assumed to contain the absolute OpenSSL source directory.
2182 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
2183 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
2184 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
2185 mkdir -p `dirname $F`
2186 ln -s $OPENSSL_SOURCE/$F $F
2189 To be absolutely sure not to disturb the source tree, a "make clean"
2190 is a good thing. If it isn't successfull, don't worry about it,
2191 it probably means the source directory is very clean.
2194 *) Make sure any ENGINE control commands make local copies of string
2195 pointers passed to them whenever necessary. Otherwise it is possible
2196 the caller may have overwritten (or deallocated) the original string
2197 data when a later ENGINE operation tries to use the stored values.
2198 [Götz Babin-Ebell <babinebell@trustcenter.de>]
2200 *) Improve diagnostics in file reading and command-line digests.
2201 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
2203 *) Add AES modes CFB and OFB to the object database. Correct an
2204 error in AES-CFB decryption.
2207 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
2208 allows existing EVP_CIPHER_CTX structures to be reused after
2209 calling EVP_*Final(). This behaviour is used by encryption
2210 BIOs and some applications. This has the side effect that
2211 applications must explicitly clean up cipher contexts with
2212 EVP_CIPHER_CTX_cleanup() or they will leak memory.
2215 *) Check the values of dna and dnb in bn_mul_recursive before calling
2216 bn_mul_comba (a non zero value means the a or b arrays do not contain
2217 n2 elements) and fallback to bn_mul_normal if either is not zero.
2220 *) Fix escaping of non-ASCII characters when using the -subj option
2221 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
2224 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
2225 form for "surname", serialNumber has no short form.
2226 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
2227 therefore remove "mail" short name for "internet 7".
2228 The OID for unique identifiers in X509 certificates is
2229 x500UniqueIdentifier, not uniqueIdentifier.
2230 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
2233 *) Add an "init" command to the ENGINE config module and auto initialize
2234 ENGINEs. Without any "init" command the ENGINE will be initialized
2235 after all ctrl commands have been executed on it. If init=1 the
2236 ENGINE is initailized at that point (ctrls before that point are run
2237 on the uninitialized ENGINE and after on the initialized one). If
2238 init=0 then the ENGINE will not be iniatialized at all.
2241 *) Fix the 'app_verify_callback' interface so that the user-defined
2242 argument is actually passed to the callback: In the
2243 SSL_CTX_set_cert_verify_callback() prototype, the callback
2244 declaration has been changed from
2247 int (*cb)(X509_STORE_CTX *,void *);
2248 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
2249 i=s->ctx->app_verify_callback(&ctx)
2250 has been changed into
2251 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
2253 To update applications using SSL_CTX_set_cert_verify_callback(),
2254 a dummy argument can be added to their callback functions.
2255 [D. K. Smetters <smetters@parc.xerox.com>]
2257 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
2258 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
2260 *) Add and OPENSSL_LOAD_CONF define which will cause
2261 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
2262 This allows older applications to transparently support certain
2263 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
2264 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
2265 load the config file and OPENSSL_add_all_algorithms_conf() which will
2266 always load it have also been added.
2269 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
2270 Adjust NIDs and EVP layer.
2271 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2273 *) Config modules support in openssl utility.
2275 Most commands now load modules from the config file,
2276 though in a few (such as version) this isn't done
2277 because it couldn't be used for anything.
2279 In the case of ca and req the config file used is
2280 the same as the utility itself: that is the -config
2281 command line option can be used to specify an
2285 *) Move default behaviour from OPENSSL_config(). If appname is NULL
2286 use "openssl_conf" if filename is NULL use default openssl config file.
2289 *) Add an argument to OPENSSL_config() to allow the use of an alternative
2290 config section name. Add a new flag to tolerate a missing config file
2291 and move code to CONF_modules_load_file().
2294 *) Support for crypto accelerator cards from Accelerated Encryption
2295 Processing, www.aep.ie. (Use engine 'aep')
2296 The support was copied from 0.9.6c [engine] and adapted/corrected
2297 to work with the new engine framework.
2298 [AEP Inc. and Richard Levitte]
2300 *) Support for SureWare crypto accelerator cards from Baltimore
2301 Technologies. (Use engine 'sureware')
2302 The support was copied from 0.9.6c [engine] and adapted
2303 to work with the new engine framework.
2306 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
2307 make the newer ENGINE framework commands for the CHIL engine work.
2308 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
2310 *) Make it possible to produce shared libraries on ReliantUNIX.
2311 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
2313 *) Add the configuration target debug-linux-ppro.
2314 Make 'openssl rsa' use the general key loading routines
2315 implemented in apps.c, and make those routines able to
2316 handle the key format FORMAT_NETSCAPE and the variant
2318 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2320 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
2321 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2323 *) Add -keyform to rsautl, and document -engine.
2324 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
2326 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
2327 BIO_R_NO_SUCH_FILE error code rather than the generic
2328 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
2331 *) Add new functions
2333 ERR_peek_last_error_line
2334 ERR_peek_last_error_line_data.
2335 These are similar to
2338 ERR_peek_error_line_data,
2339 but report on the latest error recorded rather than the first one
2340 still in the error queue.
2341 [Ben Laurie, Bodo Moeller]
2343 *) default_algorithms option in ENGINE config module. This allows things
2345 default_algorithms = ALL
2346 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
2349 *) Prelminary ENGINE config module.
2352 *) New experimental application configuration code.
2355 *) Change the AES code to follow the same name structure as all other
2356 symmetric ciphers, and behave the same way. Move everything to
2357 the directory crypto/aes, thereby obsoleting crypto/rijndael.
2358 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2360 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
2361 [Ben Laurie and Theo de Raadt]
2363 *) Add option to output public keys in req command.
2364 [Massimiliano Pala madwolf@openca.org]
2366 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
2367 (up to about 10% better than before for P-192 and P-224).
2370 *) New functions/macros
2372 SSL_CTX_set_msg_callback(ctx, cb)
2373 SSL_CTX_set_msg_callback_arg(ctx, arg)
2374 SSL_set_msg_callback(ssl, cb)
2375 SSL_set_msg_callback_arg(ssl, arg)
2377 to request calling a callback function
2379 void cb(int write_p, int version, int content_type,
2380 const void *buf, size_t len, SSL *ssl, void *arg)
2382 whenever a protocol message has been completely received
2383 (write_p == 0) or sent (write_p == 1). Here 'version' is the
2384 protocol version according to which the SSL library interprets
2385 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
2386 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
2387 the content type as defined in the SSL 3.0/TLS 1.0 protocol
2388 specification (change_cipher_spec(20), alert(21), handshake(22)).
2389 'buf' and 'len' point to the actual message, 'ssl' to the
2390 SSL object, and 'arg' is the application-defined value set by
2391 SSL[_CTX]_set_msg_callback_arg().
2393 'openssl s_client' and 'openssl s_server' have new '-msg' options
2394 to enable a callback that displays all protocol messages.
2397 *) Change the shared library support so shared libraries are built as
2398 soon as the corresponding static library is finished, and thereby get
2399 openssl and the test programs linked against the shared library.
2400 This still only happens when the keyword "shard" has been given to
2401 the configuration scripts.
2403 NOTE: shared library support is still an experimental thing, and
2404 backward binary compatibility is still not guaranteed.
2405 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
2407 *) Add support for Subject Information Access extension.
2408 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2410 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
2411 additional bytes when new memory had to be allocated, not just
2412 when reusing an existing buffer.
2415 *) New command line and configuration option 'utf8' for the req command.
2416 This allows field values to be specified as UTF8 strings.
2419 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
2420 runs for the former and machine-readable output for the latter.
2423 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
2424 of the e-mail address in the DN (i.e., it will go into a certificate
2425 extension only). The new configuration file option 'email_in_dn = no'
2426 has the same effect.
2427 [Massimiliano Pala madwolf@openca.org]
2429 *) Change all functions with names starting with des_ to be starting
2430 with DES_ instead. Add wrappers that are compatible with libdes,
2431 but are named _ossl_old_des_*. Finally, add macros that map the
2432 des_* symbols to the corresponding _ossl_old_des_* if libdes
2433 compatibility is desired. If OpenSSL 0.9.6c compatibility is
2434 desired, the des_* symbols will be mapped to DES_*, with one
2437 Since we provide two compatibility mappings, the user needs to
2438 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
2439 compatibility is desired. The default (i.e., when that macro
2440 isn't defined) is OpenSSL 0.9.6c compatibility.
2442 There are also macros that enable and disable the support of old
2443 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
2444 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
2445 are defined, the default will apply: to support the old des routines.
2447 In either case, one must include openssl/des.h to get the correct
2448 definitions. Do not try to just include openssl/des_old.h, that
2451 NOTE: This is a major break of an old API into a new one. Software
2452 authors are encouraged to switch to the DES_ style functions. Some
2453 time in the future, des_old.h and the libdes compatibility functions
2454 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
2455 default), and then completely removed.
2458 *) Test for certificates which contain unsupported critical extensions.
2459 If such a certificate is found during a verify operation it is
2460 rejected by default: this behaviour can be overridden by either
2461 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
2462 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
2463 X509_supported_extension() has also been added which returns 1 if a
2464 particular extension is supported.
2467 *) Modify the behaviour of EVP cipher functions in similar way to digests
2468 to retain compatibility with existing code.
2471 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
2472 compatibility with existing code. In particular the 'ctx' parameter does
2473 not have to be to be initialized before the call to EVP_DigestInit() and
2474 it is tidied up after a call to EVP_DigestFinal(). New function
2475 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
2476 EVP_MD_CTX_copy() changed to not require the destination to be
2477 initialized valid and new function EVP_MD_CTX_copy_ex() added which
2478 requires the destination to be valid.
2480 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
2481 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
2484 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
2485 so that complete 'Handshake' protocol structures are kept in memory
2486 instead of overwriting 'msg_type' and 'length' with 'body' data.
2489 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
2490 [Massimo Santin via Richard Levitte]
2492 *) Major restructuring to the underlying ENGINE code. This includes
2493 reduction of linker bloat, separation of pure "ENGINE" manipulation
2494 (initialisation, etc) from functionality dealing with implementations
2495 of specific crypto iterfaces. This change also introduces integrated
2496 support for symmetric ciphers and digest implementations - so ENGINEs
2497 can now accelerate these by providing EVP_CIPHER and EVP_MD
2498 implementations of their own. This is detailed in crypto/engine/README
2499 as it couldn't be adequately described here. However, there are a few
2500 API changes worth noting - some RSA, DSA, DH, and RAND functions that
2501 were changed in the original introduction of ENGINE code have now
2502 reverted back - the hooking from this code to ENGINE is now a good
2503 deal more passive and at run-time, operations deal directly with
2504 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
2505 dereferencing through an ENGINE pointer any more. Also, the ENGINE
2506 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
2507 they were not being used by the framework as there is no concept of a
2508 BIGNUM_METHOD and they could not be generalised to the new
2509 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
2510 ENGINE_cpy() has been removed as it cannot be consistently defined in
2514 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
2517 *) Change mkdef.pl to sort symbols that get the same entry number,
2518 and make sure the automatically generated functions ERR_load_*
2519 become part of libeay.num as well.
2522 *) New function SSL_renegotiate_pending(). This returns true once
2523 renegotiation has been requested (either SSL_renegotiate() call
2524 or HelloRequest/ClientHello receveived from the peer) and becomes
2525 false once a handshake has been completed.
2526 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
2527 sends a HelloRequest, but does not ensure that a handshake takes
2528 place. SSL_renegotiate_pending() is useful for checking if the
2529 client has followed the request.)
2532 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
2533 By default, clients may request session resumption even during
2534 renegotiation (if session ID contexts permit); with this option,
2535 session resumption is possible only in the first handshake.
2537 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
2538 more bits available for options that should not be part of
2539 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
2542 *) Add some demos for certificate and certificate request creation.
2545 *) Make maximum certificate chain size accepted from the peer application
2546 settable (SSL*_get/set_max_cert_list()), as proposed by
2547 "Douglas E. Engert" <deengert@anl.gov>.
2550 *) Add support for shared libraries for Unixware-7
2551 (Boyd Lynn Gerber <gerberb@zenez.com>).
2554 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
2555 be done prior to destruction. Use this to unload error strings from
2556 ENGINEs that load their own error strings. NB: This adds two new API
2557 functions to "get" and "set" this destroy handler in an ENGINE.
2560 *) Alter all existing ENGINE implementations (except "openssl" and
2561 "openbsd") to dynamically instantiate their own error strings. This
2562 makes them more flexible to be built both as statically-linked ENGINEs
2563 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
2564 Also, add stub code to each that makes building them as self-contained
2565 shared-libraries easier (see README.ENGINE).
2568 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
2569 implementations into applications that are completely implemented in
2570 self-contained shared-libraries. The "dynamic" ENGINE exposes control
2571 commands that can be used to configure what shared-library to load and
2572 to control aspects of the way it is handled. Also, made an update to
2573 the README.ENGINE file that brings its information up-to-date and
2574 provides some information and instructions on the "dynamic" ENGINE
2575 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
2578 *) Make it possible to unload ranges of ERR strings with a new
2579 "ERR_unload_strings" function.
2582 *) Add a copy() function to EVP_MD.
2585 *) Make EVP_MD routines take a context pointer instead of just the
2586 md_data void pointer.
2589 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
2590 that the digest can only process a single chunk of data
2591 (typically because it is provided by a piece of
2592 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
2593 is only going to provide a single chunk of data, and hence the
2594 framework needn't accumulate the data for oneshot drivers.
2597 *) As with "ERR", make it possible to replace the underlying "ex_data"
2598 functions. This change also alters the storage and management of global
2599 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
2600 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
2601 index counters. The API functions that use this state have been changed
2602 to take a "class_index" rather than pointers to the class's local STACK
2603 and counter, and there is now an API function to dynamically create new
2604 classes. This centralisation allows us to (a) plug a lot of the
2605 thread-safety problems that existed, and (b) makes it possible to clean
2606 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
2607 such data would previously have always leaked in application code and
2608 workarounds were in place to make the memory debugging turn a blind eye
2609 to it. Application code that doesn't use this new function will still
2610 leak as before, but their memory debugging output will announce it now
2611 rather than letting it slide.
2613 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
2614 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
2615 has a return value to indicate success or failure.
2618 *) Make it possible to replace the underlying "ERR" functions such that the
2619 global state (2 LHASH tables and 2 locks) is only used by the "default"
2620 implementation. This change also adds two functions to "get" and "set"
2621 the implementation prior to it being automatically set the first time
2622 any other ERR function takes place. Ie. an application can call "get",
2623 pass the return value to a module it has just loaded, and that module
2624 can call its own "set" function using that value. This means the
2625 module's "ERR" operations will use (and modify) the error state in the
2626 application and not in its own statically linked copy of OpenSSL code.
2629 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
2630 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
2631 the operation, and provides a more encapsulated way for external code
2632 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
2633 to use these functions rather than manually incrementing the counts.
2635 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
2638 *) Add EVP test program.
2641 *) Add symmetric cipher support to ENGINE. Expect the API to change!
2644 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
2645 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
2646 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
2647 These allow a CRL to be built without having to access X509_CRL fields
2648 directly. Modify 'ca' application to use new functions.
2651 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
2652 bug workarounds. Rollback attack detection is a security feature.
2653 The problem will only arise on OpenSSL servers when TLSv1 is not
2654 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
2655 Software authors not wanting to support TLSv1 will have special reasons
2656 for their choice and can explicitly enable this option.
2657 [Bodo Moeller, Lutz Jaenicke]
2659 *) Rationalise EVP so it can be extended: don't include a union of
2660 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
2661 (similar to those existing for EVP_CIPHER_CTX).
2666 EVP_MD_CTX_init(&md); /* new function call */
2667 EVP_DigestInit(&md, EVP_sha1());
2668 EVP_DigestUpdate(&md, in, len);
2669 EVP_DigestFinal(&md, out, NULL);
2670 EVP_MD_CTX_cleanup(&md); /* new function call */
2674 *) Make DES key schedule conform to the usual scheme, as well as
2675 correcting its structure. This means that calls to DES functions
2676 now have to pass a pointer to a des_key_schedule instead of a
2677 plain des_key_schedule (which was actually always a pointer
2680 des_key_schedule ks;
2682 des_set_key_checked(..., &ks);
2683 des_ncbc_encrypt(..., &ks, ...);
2685 (Note that a later change renames 'des_...' into 'DES_...'.)
2688 *) Initial reduction of linker bloat: the use of some functions, such as
2689 PEM causes large amounts of unused functions to be linked in due to
2690 poor organisation. For example pem_all.c contains every PEM function
2691 which has a knock on effect of linking in large amounts of (unused)
2692 ASN1 code. Grouping together similar functions and splitting unrelated
2693 functions prevents this.
2696 *) Cleanup of EVP macros.
2699 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
2700 correct _ecb suffix.
2703 *) Add initial OCSP responder support to ocsp application. The
2704 revocation information is handled using the text based index
2705 use by the ca application. The responder can either handle
2706 requests generated internally, supplied in files (for example
2707 via a CGI script) or using an internal minimal server.
2710 *) Add configuration choices to get zlib compression for TLS.
2713 *) Changes to Kerberos SSL for RFC 2712 compliance:
2714 1. Implemented real KerberosWrapper, instead of just using
2715 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
2716 2. Implemented optional authenticator field of KerberosWrapper.
2718 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
2719 and authenticator structs; see crypto/krb5/.
2721 Generalized Kerberos calls to support multiple Kerberos libraries.
2722 [Vern Staats <staatsvr@asc.hpc.mil>,
2723 Jeffrey Altman <jaltman@columbia.edu>
2724 via Richard Levitte]
2726 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
2727 already does with RSA. testdsa.h now has 'priv_key/pub_key'
2728 values for each of the key sizes rather than having just
2729 parameters (and 'speed' generating keys each time).
2732 *) Speed up EVP routines.
2735 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
2736 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
2737 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
2738 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
2740 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
2741 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
2742 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
2745 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
2747 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
2750 *) Added the OS2-EMX target.
2751 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
2753 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
2754 to support NCONF routines in extension code. New function CONF_set_nconf()
2755 to allow functions which take an NCONF to also handle the old LHASH
2756 structure: this means that the old CONF compatible routines can be
2757 retained (in particular wrt extensions) without having to duplicate the
2758 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
2761 *) Enhance the general user interface with mechanisms for inner control
2762 and with possibilities to have yes/no kind of prompts.
2765 *) Change all calls to low level digest routines in the library and
2766 applications to use EVP. Add missing calls to HMAC_cleanup() and
2767 don't assume HMAC_CTX can be copied using memcpy().
2768 [Verdon Walker <VWalker@novell.com>, Steve Henson]
2770 *) Add the possibility to control engines through control names but with
2771 arbitrary arguments instead of just a string.
2772 Change the key loaders to take a UI_METHOD instead of a callback
2773 function pointer. NOTE: this breaks binary compatibility with earlier
2774 versions of OpenSSL [engine].
2775 Adapt the nCipher code for these new conditions and add a card insertion
2779 *) Enhance the general user interface with mechanisms to better support
2780 dialog box interfaces, application-defined prompts, the possibility
2781 to use defaults (for example default passwords from somewhere else)
2782 and interrupts/cancellations.
2785 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
2786 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
2789 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
2790 tidy up some unnecessarily weird code in 'sk_new()').
2791 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
2793 *) Change the key loading routines for ENGINEs to use the same kind
2794 callback (pem_password_cb) as all other routines that need this
2798 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
2799 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
2800 than this minimum value is recommended.
2803 *) New random seeder for OpenVMS, using the system process statistics
2804 that are easily reachable.
2807 *) Windows apparently can't transparently handle global
2808 variables defined in DLLs. Initialisations such as:
2810 const ASN1_ITEM *it = &ASN1_INTEGER_it;
2812 wont compile. This is used by the any applications that need to
2813 declare their own ASN1 modules. This was fixed by adding the option
2814 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
2815 needed for static libraries under Win32.
2818 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
2819 setting of purpose and trust fields. New X509_STORE trust and
2820 purpose functions and tidy up setting in other SSL functions.
2823 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
2824 structure. These are inherited by X509_STORE_CTX when it is
2825 initialised. This allows various defaults to be set in the
2826 X509_STORE structure (such as flags for CRL checking and custom
2827 purpose or trust settings) for functions which only use X509_STORE_CTX
2828 internally such as S/MIME.
2830 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
2831 trust settings if they are not set in X509_STORE. This allows X509_STORE
2832 purposes and trust (in S/MIME for example) to override any set by default.
2834 Add command line options for CRL checking to smime, s_client and s_server
2838 *) Initial CRL based revocation checking. If the CRL checking flag(s)
2839 are set then the CRL is looked up in the X509_STORE structure and
2840 its validity and signature checked, then if the certificate is found
2841 in the CRL the verify fails with a revoked error.
2843 Various new CRL related callbacks added to X509_STORE_CTX structure.
2845 Command line options added to 'verify' application to support this.
2847 This needs some additional work, such as being able to handle multiple
2848 CRLs with different times, extension based lookup (rather than just
2849 by subject name) and ultimately more complete V2 CRL extension
2853 *) Add a general user interface API (crypto/ui/). This is designed
2854 to replace things like des_read_password and friends (backward
2855 compatibility functions using this new API are provided).
2856 The purpose is to remove prompting functions from the DES code
2857 section as well as provide for prompting through dialog boxes in
2858 a window system and the like.
2861 *) Add "ex_data" support to ENGINE so implementations can add state at a
2862 per-structure level rather than having to store it globally.
2865 *) Make it possible for ENGINE structures to be copied when retrieved by
2866 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
2867 This causes the "original" ENGINE structure to act like a template,
2868 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
2869 operational state can be localised to each ENGINE structure, despite the
2870 fact they all share the same "methods". New ENGINE structures returned in
2871 this case have no functional references and the return value is the single
2872 structural reference. This matches the single structural reference returned
2873 by ENGINE_by_id() normally, when it is incremented on the pre-existing
2877 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
2878 needs to match any other type at all we need to manually clear the
2882 *) Changes to the "openssl engine" utility to include;
2883 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
2884 about an ENGINE's available control commands.
2885 - executing control commands from command line arguments using the
2886 '-pre' and '-post' switches. '-post' is only used if '-t' is
2887 specified and the ENGINE is successfully initialised. The syntax for
2888 the individual commands are colon-separated, for example;
2889 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
2892 *) New dynamic control command support for ENGINEs. ENGINEs can now
2893 declare their own commands (numbers), names (strings), descriptions,
2894 and input types for run-time discovery by calling applications. A
2895 subset of these commands are implicitly classed as "executable"
2896 depending on their input type, and only these can be invoked through
2897 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
2898 can be based on user input, config files, etc). The distinction is
2899 that "executable" commands cannot return anything other than a boolean
2900 result and can only support numeric or string input, whereas some
2901 discoverable commands may only be for direct use through
2902 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
2903 pointers, or other custom uses. The "executable" commands are to
2904 support parameterisations of ENGINE behaviour that can be
2905 unambiguously defined by ENGINEs and used consistently across any
2906 OpenSSL-based application. Commands have been added to all the
2907 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
2908 control over shared-library paths without source code alterations.
2911 *) Changed all ENGINE implementations to dynamically allocate their
2912 ENGINEs rather than declaring them statically. Apart from this being
2913 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
2914 this also allows the implementations to compile without using the
2915 internal engine_int.h header.
2918 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
2919 'const' value. Any code that should be able to modify a RAND_METHOD
2920 should already have non-const pointers to it (ie. they should only
2921 modify their own ones).
2924 *) Made a variety of little tweaks to the ENGINE code.
2925 - "atalla" and "ubsec" string definitions were moved from header files
2926 to C code. "nuron" string definitions were placed in variables
2927 rather than hard-coded - allowing parameterisation of these values
2928 later on via ctrl() commands.
2929 - Removed unused "#if 0"'d code.
2930 - Fixed engine list iteration code so it uses ENGINE_free() to release
2931 structural references.
2932 - Constified the RAND_METHOD element of ENGINE structures.
2933 - Constified various get/set functions as appropriate and added
2934 missing functions (including a catch-all ENGINE_cpy that duplicates
2935 all ENGINE values onto a new ENGINE except reference counts/state).
2936 - Removed NULL parameter checks in get/set functions. Setting a method
2937 or function to NULL is a way of cancelling out a previously set
2938 value. Passing a NULL ENGINE parameter is just plain stupid anyway
2939 and doesn't justify the extra error symbols and code.
2940 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
2941 flags from engine_int.h to engine.h.
2942 - Changed prototypes for ENGINE handler functions (init(), finish(),
2943 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
2946 *) Implement binary inversion algorithm for BN_mod_inverse in addition
2947 to the algorithm using long division. The binary algorithm can be
2948 used only if the modulus is odd. On 32-bit systems, it is faster
2949 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
2950 roughly 5-15% for 256-bit moduli), so we use it only for moduli
2951 up to 450 bits. In 64-bit environments, the binary algorithm
2952 appears to be advantageous for much longer moduli; here we use it
2953 for moduli up to 2048 bits.
2956 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
2957 could not support the combine flag in choice fields.
2960 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
2961 extensions from a certificate request to the certificate.
2964 *) Allow multiple 'certopt' and 'nameopt' options to be separated
2965 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
2966 file: this allows the display of the certificate about to be
2967 signed to be customised, to allow certain fields to be included
2968 or excluded and extension details. The old system didn't display
2969 multicharacter strings properly, omitted fields not in the policy
2970 and couldn't display additional details such as extensions.
2973 *) Function EC_POINTs_mul for multiple scalar multiplication
2974 of an arbitrary number of elliptic curve points
2975 \sum scalars[i]*points[i],
2976 optionally including the generator defined for the EC_GROUP:
2977 scalar*generator + \sum scalars[i]*points[i].
2979 EC_POINT_mul is a simple wrapper function for the typical case
2980 that the point list has just one item (besides the optional
2984 *) First EC_METHODs for curves over GF(p):
2986 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
2987 operations and provides various method functions that can also
2988 operate with faster implementations of modular arithmetic.
2990 EC_GFp_mont_method() reuses most functions that are part of
2991 EC_GFp_simple_method, but uses Montgomery arithmetic.
2993 [Bodo Moeller; point addition and point doubling
2994 implementation directly derived from source code provided by
2995 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
2997 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
2998 crypto/ec/ec_lib.c):
3000 Curves are EC_GROUP objects (with an optional group generator)
3001 based on EC_METHODs that are built into the library.
3003 Points are EC_POINT objects based on EC_GROUP objects.
3005 Most of the framework would be able to handle curves over arbitrary
3006 finite fields, but as there are no obvious types for fields other
3007 than GF(p), some functions are limited to that for now.
3010 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
3011 that the file contains a complete HTTP response.
3014 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
3015 change the def and num file printf format specifier from "%-40sXXX"
3016 to "%-39s XXX". The latter will always guarantee a space after the
3017 field while the former will cause them to run together if the field
3018 is 40 of more characters long.
3021 *) Constify the cipher and digest 'method' functions and structures
3022 and modify related functions to take constant EVP_MD and EVP_CIPHER
3026 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
3027 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
3030 *) Modify EVP_Digest*() routines so they now return values. Although the
3031 internal software routines can never fail additional hardware versions
3035 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
3037 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
3038 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
3041 ERR_R_NESTED_ASN1_ERROR
3043 ERR_R_MISSING_ASN1_EOS
3044 were 4 .. 9, conflicting with
3045 ERR_LIB_RSA (= ERR_R_RSA_LIB)
3047 ERR_LIB_PEM (= ERR_R_PEM_LIB).
3048 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
3050 Add new error code 'ERR_R_INTERNAL_ERROR'.
3053 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
3057 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
3058 sets the subject name for a new request or supersedes the
3059 subject name in a given request. Formats that can be parsed are
3060 'CN=Some Name, OU=myOU, C=IT'
3062 'CN=Some Name/OU=myOU/C=IT'.
3064 Add options '-batch' and '-verbose' to 'openssl req'.
3065 [Massimiliano Pala <madwolf@hackmasters.net>]
3067 *) Introduce the possibility to access global variables through
3068 functions on platform were that's the best way to handle exporting
3069 global variables in shared libraries. To enable this functionality,
3070 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
3071 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
3072 is normally done by Configure or something similar).
3074 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
3075 in the source file (foo.c) like this:
3077 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
3078 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
3080 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
3081 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
3083 OPENSSL_DECLARE_GLOBAL(int,foo);
3084 #define foo OPENSSL_GLOBAL_REF(foo)
3085 OPENSSL_DECLARE_GLOBAL(double,bar);
3086 #define bar OPENSSL_GLOBAL_REF(bar)
3088 The #defines are very important, and therefore so is including the
3089 header file everywhere where the defined globals are used.
3091 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
3092 of ASN.1 items, but that structure is a bit different.
3094 The largest change is in util/mkdef.pl which has been enhanced with
3095 better and easier to understand logic to choose which symbols should
3096 go into the Windows .def files as well as a number of fixes and code
3097 cleanup (among others, algorithm keywords are now sorted
3098 lexicographically to avoid constant rewrites).
3101 *) In BN_div() keep a copy of the sign of 'num' before writing the
3102 result to 'rm' because if rm==num the value will be overwritten
3103 and produce the wrong result if 'num' is negative: this caused
3104 problems with BN_mod() and BN_nnmod().
3107 *) Function OCSP_request_verify(). This checks the signature on an
3108 OCSP request and verifies the signer certificate. The signer
3109 certificate is just checked for a generic purpose and OCSP request
3113 *) Add OCSP_check_validity() function to check the validity of OCSP
3114 responses. OCSP responses are prepared in real time and may only
3115 be a few seconds old. Simply checking that the current time lies
3116 between thisUpdate and nextUpdate max reject otherwise valid responses
3117 caused by either OCSP responder or client clock inaccuracy. Instead
3118 we allow thisUpdate and nextUpdate to fall within a certain period of
3119 the current time. The age of the response can also optionally be
3120 checked. Two new options -validity_period and -status_age added to
3124 *) If signature or public key algorithm is unrecognized print out its
3125 OID rather that just UNKNOWN.
3128 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
3129 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
3130 ID to be generated from the issuer certificate alone which can then be
3131 passed to OCSP_id_issuer_cmp().
3134 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
3135 ASN1 modules to export functions returning ASN1_ITEM pointers
3136 instead of the ASN1_ITEM structures themselves. This adds several
3137 new macros which allow the underlying ASN1 function/structure to
3138 be accessed transparently. As a result code should not use ASN1_ITEM
3139 references directly (such as &X509_it) but instead use the relevant
3140 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
3141 use of the new ASN1 code on platforms where exporting structures
3142 is problematical (for example in shared libraries) but exporting
3143 functions returning pointers to structures is not.
3146 *) Add support for overriding the generation of SSL/TLS session IDs.
3147 These callbacks can be registered either in an SSL_CTX or per SSL.
3148 The purpose of this is to allow applications to control, if they wish,
3149 the arbitrary values chosen for use as session IDs, particularly as it
3150 can be useful for session caching in multiple-server environments. A
3151 command-line switch for testing this (and any client code that wishes
3152 to use such a feature) has been added to "s_server".
3153 [Geoff Thorpe, Lutz Jaenicke]
3155 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
3156 of the form '#if defined(...) || defined(...) || ...' and
3157 '#if !defined(...) && !defined(...) && ...'. This also avoids
3158 the growing number of special cases it was previously handling.
3161 *) Make all configuration macros available for application by making
3162 sure they are available in opensslconf.h, by giving them names starting
3163 with "OPENSSL_" to avoid conflicts with other packages and by making
3164 sure e_os2.h will cover all platform-specific cases together with
3166 Additionally, it is now possible to define configuration/platform-
3167 specific names (called "system identities"). In the C code, these
3168 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
3169 macro with the name beginning with "OPENSSL_SYS_", which is determined
3170 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
3174 *) New option -set_serial to 'req' and 'x509' this allows the serial
3175 number to use to be specified on the command line. Previously self
3176 signed certificates were hard coded with serial number 0 and the
3177 CA options of 'x509' had to use a serial number in a file which was
3181 *) New options to 'ca' utility to support V2 CRL entry extensions.
3182 Currently CRL reason, invalidity date and hold instruction are
3183 supported. Add new CRL extensions to V3 code and some new objects.
3186 *) New function EVP_CIPHER_CTX_set_padding() this is used to
3187 disable standard block padding (aka PKCS#5 padding) in the EVP
3188 API, which was previously mandatory. This means that the data is
3189 not padded in any way and so the total length much be a multiple
3190 of the block size, otherwise an error occurs.
3193 *) Initial (incomplete) OCSP SSL support.
3196 *) New function OCSP_parse_url(). This splits up a URL into its host,
3197 port and path components: primarily to parse OCSP URLs. New -url
3198 option to ocsp utility.
3201 *) New nonce behavior. The return value of OCSP_check_nonce() now
3202 reflects the various checks performed. Applications can decide
3203 whether to tolerate certain situations such as an absent nonce
3204 in a response when one was present in a request: the ocsp application
3205 just prints out a warning. New function OCSP_add1_basic_nonce()
3206 this is to allow responders to include a nonce in a response even if
3207 the request is nonce-less.
3210 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
3211 skipped when using openssl x509 multiple times on a single input file,
3212 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
3215 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
3216 set string type: to handle setting ASN1_TIME structures. Fix ca
3217 utility to correctly initialize revocation date of CRLs.
3220 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
3221 the clients preferred ciphersuites and rather use its own preferences.
3222 Should help to work around M$ SGC (Server Gated Cryptography) bug in
3223 Internet Explorer by ensuring unchanged hash method during stepup.
3224 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
3227 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
3228 to aes and add a new 'exist' option to print out symbols that don't
3232 *) Additional options to ocsp utility to allow flags to be set and
3233 additional certificates supplied.
3236 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
3237 OCSP client a number of certificate to only verify the response
3241 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
3242 handle the new API. Currently only ECB, CBC modes supported. Add new
3245 Add TLS AES ciphersuites as described in RFC3268, "Advanced
3246 Encryption Standard (AES) Ciphersuites for Transport Layer
3247 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
3248 not enabled by default and were not part of the "ALL" ciphersuite
3249 alias because they were not yet official; they could be
3250 explicitly requested by specifying the "AESdraft" ciphersuite
3251 group alias. In the final release of OpenSSL 0.9.7, the group
3252 alias is called "AES" and is part of "ALL".)
3253 [Ben Laurie, Steve Henson, Bodo Moeller]
3255 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
3256 request to response.
3259 *) Functions for OCSP responders. OCSP_request_onereq_count(),
3260 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
3261 extract information from a certificate request. OCSP_response_create()
3262 creates a response and optionally adds a basic response structure.
3263 OCSP_basic_add1_status() adds a complete single response to a basic
3264 response and returns the OCSP_SINGLERESP structure just added (to allow
3265 extensions to be included for example). OCSP_basic_add1_cert() adds a
3266 certificate to a basic response and OCSP_basic_sign() signs a basic
3267 response with various flags. New helper functions ASN1_TIME_check()
3268 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
3269 (converts ASN1_TIME to GeneralizedTime).
3272 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
3273 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
3274 structure from a certificate. X509_pubkey_digest() digests the public_key
3275 contents: this is used in various key identifiers.
3278 *) Make sk_sort() tolerate a NULL argument.
3279 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
3281 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
3282 passed by the function are trusted implicitly. If any of them signed the
3283 response then it is assumed to be valid and is not verified.
3286 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
3287 to data. This was previously part of the PKCS7 ASN1 code. This
3288 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
3289 [Steve Henson, reported by Kenneth R. Robinette
3290 <support@securenetterm.com>]
3292 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
3293 routines: without these tracing memory leaks is very painful.
3294 Fix leaks in PKCS12 and PKCS7 routines.
3297 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
3298 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
3299 effectively meant GeneralizedTime would never be used. Now it
3300 is initialised to -1 but X509_time_adj() now has to check the value
3301 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
3302 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
3303 [Steve Henson, reported by Kenneth R. Robinette
3304 <support@securenetterm.com>]
3306 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
3307 result in a zero length in the ASN1_INTEGER structure which was
3308 not consistent with the structure when d2i_ASN1_INTEGER() was used
3309 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
3310 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
3311 where it did not print out a minus for negative ASN1_INTEGER.
3314 *) Add summary printout to ocsp utility. The various functions which
3315 convert status values to strings have been renamed to:
3316 OCSP_response_status_str(), OCSP_cert_status_str() and
3317 OCSP_crl_reason_str() and are no longer static. New options
3318 to verify nonce values and to disable verification. OCSP response
3319 printout format cleaned up.
3322 *) Add additional OCSP certificate checks. These are those specified
3323 in RFC2560. This consists of two separate checks: the CA of the
3324 certificate being checked must either be the OCSP signer certificate
3325 or the issuer of the OCSP signer certificate. In the latter case the
3326 OCSP signer certificate must contain the OCSP signing extended key
3327 usage. This check is performed by attempting to match the OCSP
3328 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
3329 in the OCSP_CERTID structures of the response.
3332 *) Initial OCSP certificate verification added to OCSP_basic_verify()
3333 and related routines. This uses the standard OpenSSL certificate
3334 verify routines to perform initial checks (just CA validity) and
3335 to obtain the certificate chain. Then additional checks will be
3336 performed on the chain. Currently the root CA is checked to see
3337 if it is explicitly trusted for OCSP signing. This is used to set
3338 a root CA as a global signing root: that is any certificate that
3339 chains to that CA is an acceptable OCSP signing certificate.
3342 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
3343 extensions from a separate configuration file.
3344 As when reading extensions from the main configuration file,
3345 the '-extensions ...' option may be used for specifying the
3347 [Massimiliano Pala <madwolf@comune.modena.it>]
3349 *) New OCSP utility. Allows OCSP requests to be generated or
3350 read. The request can be sent to a responder and the output
3351 parsed, outputed or printed in text form. Not complete yet:
3352 still needs to check the OCSP response validity.
3355 *) New subcommands for 'openssl ca':
3356 'openssl ca -status <serial>' prints the status of the cert with
3357 the given serial number (according to the index file).
3358 'openssl ca -updatedb' updates the expiry status of certificates
3360 [Massimiliano Pala <madwolf@comune.modena.it>]
3362 *) New '-newreq-nodes' command option to CA.pl. This is like
3363 '-newreq', but calls 'openssl req' with the '-nodes' option
3364 so that the resulting key is not encrypted.
3365 [Damien Miller <djm@mindrot.org>]
3367 *) New configuration for the GNU Hurd.
3368 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
3370 *) Initial code to implement OCSP basic response verify. This
3371 is currently incomplete. Currently just finds the signer's
3372 certificate and verifies the signature on the response.
3375 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
3376 value of OPENSSLDIR. This is available via the new '-d' option
3377 to 'openssl version', and is also included in 'openssl version -a'.
3380 *) Allowing defining memory allocation callbacks that will be given
3381 file name and line number information in additional arguments
3382 (a const char* and an int). The basic functionality remains, as
3383 well as the original possibility to just replace malloc(),
3384 realloc() and free() by functions that do not know about these
3385 additional arguments. To register and find out the current
3386 settings for extended allocation functions, the following
3387 functions are provided:
3389 CRYPTO_set_mem_ex_functions
3390 CRYPTO_set_locked_mem_ex_functions
3391 CRYPTO_get_mem_ex_functions
3392 CRYPTO_get_locked_mem_ex_functions
3394 These work the same way as CRYPTO_set_mem_functions and friends.
3395 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
3396 extended allocation function is enabled.
3397 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
3398 a conventional allocation function is enabled.
3399 [Richard Levitte, Bodo Moeller]
3401 *) Finish off removing the remaining LHASH function pointer casts.
3402 There should no longer be any prototype-casting required when using
3403 the LHASH abstraction, and any casts that remain are "bugs". See
3404 the callback types and macros at the head of lhash.h for details
3405 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
3408 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
3409 If /dev/[u]random devices are not available or do not return enough
3410 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
3412 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
3413 /etc/entropy will be queried once each in this sequence, quering stops
3414 when enough entropy was collected without querying more sockets.
3417 *) Change the Unix RAND_poll() variant to be able to poll several
3418 random devices, as specified by DEVRANDOM, until a sufficient amount
3419 of data has been collected. We spend at most 10 ms on each file
3420 (select timeout) and read in non-blocking mode. DEVRANDOM now
3421 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
3422 (previously it was just the string "/dev/urandom"), so on typical
3423 platforms the 10 ms delay will never occur.
3424 Also separate out the Unix variant to its own file, rand_unix.c.
3425 For VMS, there's a currently-empty rand_vms.c.
3428 *) Move OCSP client related routines to ocsp_cl.c. These
3429 provide utility functions which an application needing
3430 to issue a request to an OCSP responder and analyse the
3431 response will typically need: as opposed to those which an
3432 OCSP responder itself would need which will be added later.
3434 OCSP_request_sign() signs an OCSP request with an API similar
3435 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
3436 response. OCSP_response_get1_basic() extracts basic response
3437 from response. OCSP_resp_find_status(): finds and extracts status
3438 information from an OCSP_CERTID structure (which will be created
3439 when the request structure is built). These are built from lower
3440 level functions which work on OCSP_SINGLERESP structures but
3441 wont normally be used unless the application wishes to examine
3442 extensions in the OCSP response for example.
3444 Replace nonce routines with a pair of functions.
3445 OCSP_request_add1_nonce() adds a nonce value and optionally
3446 generates a random value. OCSP_check_nonce() checks the
3447 validity of the nonce in an OCSP response.
3450 *) Change function OCSP_request_add() to OCSP_request_add0_id().
3451 This doesn't copy the supplied OCSP_CERTID and avoids the
3452 need to free up the newly created id. Change return type
3453 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
3454 This can then be used to add extensions to the request.
3455 Deleted OCSP_request_new(), since most of its functionality
3456 is now in OCSP_REQUEST_new() (and the case insensitive name
3457 clash) apart from the ability to set the request name which
3458 will be added elsewhere.
3461 *) Update OCSP API. Remove obsolete extensions argument from
3462 various functions. Extensions are now handled using the new
3463 OCSP extension code. New simple OCSP HTTP function which
3464 can be used to send requests and parse the response.
3467 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
3468 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
3469 uses the special reorder version of SET OF to sort the attributes
3470 and reorder them to match the encoded order. This resolves a long
3471 standing problem: a verify on a PKCS7 structure just after signing
3472 it used to fail because the attribute order did not match the
3473 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
3474 it uses the received order. This is necessary to tolerate some broken
3475 software that does not order SET OF. This is handled by encoding
3476 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
3477 to produce the required SET OF.
3480 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
3481 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
3482 files to get correct declarations of the ASN.1 item variables.
3485 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
3486 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
3487 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
3488 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
3489 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
3490 ASN1_ITEM and no wrapper functions.
3493 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
3494 replace the old function pointer based I/O routines. Change most of
3495 the *_d2i_bio() and *_d2i_fp() functions to use these.
3498 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
3499 lines, recognice more "algorithms" that can be deselected, and make
3500 it complain about algorithm deselection that isn't recognised.
3503 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
3504 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
3505 to use new functions. Add NO_ASN1_OLD which can be set to remove
3506 some old style ASN1 functions: this can be used to determine if old
3507 code will still work when these eventually go away.
3510 *) New extension functions for OCSP structures, these follow the
3511 same conventions as certificates and CRLs.
3514 *) New function X509V3_add1_i2d(). This automatically encodes and
3515 adds an extension. Its behaviour can be customised with various
3516 flags to append, replace or delete. Various wrappers added for
3517 certifcates and CRLs.
3520 *) Fix to avoid calling the underlying ASN1 print routine when
3521 an extension cannot be parsed. Correct a typo in the
3522 OCSP_SERVICELOC extension. Tidy up print OCSP format.
3525 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
3526 entries for variables.
3529 *) Add functionality to apps/openssl.c for detecting locking
3530 problems: As the program is single-threaded, all we have
3531 to do is register a locking callback using an array for
3532 storing which locks are currently held by the program.
3535 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
3536 SSL_get_ex_data_X509_STORE_idx(), which is used in
3537 ssl_verify_cert_chain() and thus can be called at any time
3538 during TLS/SSL handshakes so that thread-safety is essential.
3539 Unfortunately, the ex_data design is not at all suited
3540 for multi-threaded use, so it probably should be abolished.
3543 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
3544 [Broadcom, tweaked and integrated by Geoff Thorpe]
3546 *) Move common extension printing code to new function
3547 X509V3_print_extensions(). Reorganise OCSP print routines and
3548 implement some needed OCSP ASN1 functions. Add OCSP extensions.
3551 *) New function X509_signature_print() to remove duplication in some
3555 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
3556 set (this was treated exactly the same as SET OF previously). This
3557 is used to reorder the STACK representing the structure to match the
3558 encoding. This will be used to get round a problem where a PKCS7
3559 structure which was signed could not be verified because the STACK
3560 order did not reflect the encoded order.
3563 *) Reimplement the OCSP ASN1 module using the new code.
3566 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
3567 for its ASN1 operations. The old style function pointers still exist
3568 for now but they will eventually go away.
3571 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
3572 completely replaces the old ASN1 functionality with a table driven
3573 encoder and decoder which interprets an ASN1_ITEM structure describing
3574 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
3575 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
3576 has also been converted to the new form.
3579 *) Change BN_mod_exp_recp so that negative moduli are tolerated
3580 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
3581 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
3582 for negative moduli.
3585 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
3586 of not touching the result's sign bit.
3589 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
3593 *) Changed the LHASH code to use prototypes for callbacks, and created
3594 macros to declare and implement thin (optionally static) functions
3595 that provide type-safety and avoid function pointer casting for the
3596 type-specific callbacks.
3599 *) Added Kerberos Cipher Suites to be used with TLS, as written in
3601 [Veers Staats <staatsvr@asc.hpc.mil>,
3602 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
3604 *) Reformat the FAQ so the different questions and answers can be divided
3605 in sections depending on the subject.
3608 *) Have the zlib compression code load ZLIB.DLL dynamically under
3612 *) New function BN_mod_sqrt for computing square roots modulo a prime
3613 (using the probabilistic Tonelli-Shanks algorithm unless
3614 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
3615 be handled deterministically).
3616 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3618 *) Make BN_mod_inverse faster by explicitly handling small quotients
3619 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
3620 512 bits], about 30% for larger ones [1024 or 2048 bits].)
3623 *) New function BN_kronecker.
3626 *) Fix BN_gcd so that it works on negative inputs; the result is
3627 positive unless both parameters are zero.
3628 Previously something reasonably close to an infinite loop was
3629 possible because numbers could be growing instead of shrinking
3630 in the implementation of Euclid's algorithm.
3633 *) Fix BN_is_word() and BN_is_one() macros to take into account the
3634 sign of the number in question.
3636 Fix BN_is_word(a,w) to work correctly for w == 0.
3638 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
3639 because its test if the absolute value of 'a' equals 'w'.
3640 Note that BN_abs_is_word does *not* handle w == 0 reliably;
3641 it exists mostly for use in the implementations of BN_is_zero(),
3642 BN_is_one(), and BN_is_word().
3645 *) New function BN_swap.
3648 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
3649 the exponentiation functions are more likely to produce reasonable
3650 results on negative inputs.
3653 *) Change BN_mod_mul so that the result is always non-negative.
3654 Previously, it could be negative if one of the factors was negative;
3655 I don't think anyone really wanted that behaviour.
3658 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
3659 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
3660 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
3661 and add new functions:
3670 BN_mod_lshift1_quick
3674 These functions always generate non-negative results.
3676 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
3677 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
3679 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
3680 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
3681 be reduced modulo m.
3682 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3685 The following entry accidentily appeared in the CHANGES file
3686 distributed with OpenSSL 0.9.7. The modifications described in
3687 it do *not* apply to OpenSSL 0.9.7.
3689 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3690 was actually never needed) and in BN_mul(). The removal in BN_mul()
3691 required a small change in bn_mul_part_recursive() and the addition
3692 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3693 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3694 bn_sub_words() and bn_add_words() except they take arrays with
3699 *) In 'openssl passwd', verify passwords read from the terminal
3700 unless the '-salt' option is used (which usually means that
3701 verification would just waste user's time since the resulting
3702 hash is going to be compared with some given password hash)
3703 or the new '-noverify' option is used.
3705 This is an incompatible change, but it does not affect
3706 non-interactive use of 'openssl passwd' (passwords on the command
3707 line, '-stdin' option, '-in ...' option) and thus should not
3711 *) Remove all references to RSAref, since there's no more need for it.
3714 *) Make DSO load along a path given through an environment variable
3715 (SHLIB_PATH) with shl_load().
3718 *) Constify the ENGINE code as a result of BIGNUM constification.
3719 Also constify the RSA code and most things related to it. In a
3720 few places, most notable in the depth of the ASN.1 code, ugly
3721 casts back to non-const were required (to be solved at a later
3725 *) Make it so the openssl application has all engines loaded by default.
3728 *) Constify the BIGNUM routines a little more.
3731 *) Add the following functions:
3733 ENGINE_load_cswift()
3735 ENGINE_load_atalla()
3737 ENGINE_load_builtin_engines()
3739 That way, an application can itself choose if external engines that
3740 are built-in in OpenSSL shall ever be used or not. The benefit is
3741 that applications won't have to be linked with libdl or other dso
3742 libraries unless it's really needed.
3744 Changed 'openssl engine' to load all engines on demand.
3745 Changed the engine header files to avoid the duplication of some
3746 declarations (they differed!).
3749 *) 'openssl engine' can now list capabilities.
3752 *) Better error reporting in 'openssl engine'.
3755 *) Never call load_dh_param(NULL) in s_server.
3758 *) Add engine application. It can currently list engines by name and
3759 identity, and test if they are actually available.
3762 *) Improve RPM specification file by forcing symbolic linking and making
3763 sure the installed documentation is also owned by root.root.
3764 [Damien Miller <djm@mindrot.org>]
3766 *) Give the OpenSSL applications more possibilities to make use of
3767 keys (public as well as private) handled by engines.
3770 *) Add OCSP code that comes from CertCo.
3773 *) Add VMS support for the Rijndael code.
3776 *) Added untested support for Nuron crypto accelerator.
3779 *) Add support for external cryptographic devices. This code was
3780 previously distributed separately as the "engine" branch.
3781 [Geoff Thorpe, Richard Levitte]
3783 *) Rework the filename-translation in the DSO code. It is now possible to
3784 have far greater control over how a "name" is turned into a filename
3785 depending on the operating environment and any oddities about the
3786 different shared library filenames on each system.
3789 *) Support threads on FreeBSD-elf in Configure.
3792 *) Fix for SHA1 assembly problem with MASM: it produces
3793 warnings about corrupt line number information when assembling
3794 with debugging information. This is caused by the overlapping
3796 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
3799 NCONF_get_number() has no error checking at all. As a replacement,
3800 NCONF_get_number_e() is defined (_e for "error checking") and is
3801 promoted strongly. The old NCONF_get_number is kept around for
3802 binary backward compatibility.
3803 Make it possible for methods to load from something other than a BIO,
3804 by providing a function pointer that is given a name instead of a BIO.
3805 For example, this could be used to load configuration data from an
3809 *) Fix for non blocking accept BIOs. Added new I/O special reason
3810 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
3811 with non blocking I/O was not possible because no retry code was
3812 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
3816 *) Added the beginnings of Rijndael support.
3819 *) Fix for bug in DirectoryString mask setting. Add support for
3820 X509_NAME_print_ex() in 'req' and X509_print_ex() function
3821 to allow certificate printing to more controllable, additional
3822 'certopt' option to 'x509' to allow new printing options to be
3826 *) Clean old EAY MD5 hack from e_os.h.
3829 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
3831 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3832 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3833 [Joe Orton, Steve Henson]
3835 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
3837 *) Fix additional bug revealed by the NISCC test suite:
3839 Stop bug triggering large recursion when presented with
3840 certain ASN.1 tags (CVE-2003-0851)
3843 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
3845 *) Fix various bugs revealed by running the NISCC test suite:
3847 Stop out of bounds reads in the ASN1 code when presented with
3848 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3850 If verify callback ignores invalid public key errors don't try to check
3851 certificate signature with the NULL public key.
3855 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3856 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3860 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3861 extra data after the compression methods not only for TLS 1.0
3862 but also for SSL 3.0 (as required by the specification).
3863 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3865 *) Change X509_certificate_type() to mark the key as exported/exportable
3866 when it's 512 *bits* long, not 512 bytes.
3869 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
3871 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3872 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3873 a protocol version number mismatch like a decryption error
3874 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3877 *) Turn on RSA blinding by default in the default implementation
3878 to avoid a timing attack. Applications that don't want it can call
3879 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3880 They would be ill-advised to do so in most cases.
3881 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3883 *) Change RSA blinding code so that it works when the PRNG is not
3884 seeded (in this case, the secret RSA exponent is abused as
3885 an unpredictable seed -- if it is not unpredictable, there
3886 is no point in blinding anyway). Make RSA blinding thread-safe
3887 by remembering the creator's thread ID in rsa->blinding and
3888 having all other threads use local one-time blinding factors
3889 (this requires more computation than sharing rsa->blinding, but
3890 avoids excessive locking; and if an RSA object is not shared
3891 between threads, blinding will still be very fast).
3894 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
3896 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3897 via timing by performing a MAC computation even if incorrrect
3898 block cipher padding has been found. This is a countermeasure
3899 against active attacks where the attacker has to distinguish
3900 between bad padding and a MAC verification error. (CVE-2003-0078)
3902 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3903 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3904 Martin Vuagnoux (EPFL, Ilion)]
3906 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
3908 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
3909 memory from it's contents. This is done with a counter that will
3910 place alternating values in each byte. This can be used to solve
3911 two issues: 1) the removal of calls to memset() by highly optimizing
3912 compilers, and 2) cleansing with other values than 0, since those can
3913 be read through on certain media, for example a swap space on disk.
3916 *) Bugfix: client side session caching did not work with external caching,
3917 because the session->cipher setting was not restored when reloading
3918 from the external cache. This problem was masked, when
3919 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
3920 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
3923 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
3924 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
3925 [Zeev Lieber <zeev-l@yahoo.com>]
3927 *) Undo an undocumented change introduced in 0.9.6e which caused
3928 repeated calls to OpenSSL_add_all_ciphers() and
3929 OpenSSL_add_all_digests() to be ignored, even after calling
3933 *) Change the default configuration reader to deal with last line not
3934 being properly terminated.
3937 *) Change X509_NAME_cmp() so it applies the special rules on handling
3938 DN values that are of type PrintableString, as well as RDNs of type
3939 emailAddress where the value has the type ia5String.
3940 [stefank@valicert.com via Richard Levitte]
3942 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
3943 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
3944 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
3945 the bitwise-OR of the two for use by the majority of applications
3946 wanting this behaviour, and update the docs. The documented
3947 behaviour and actual behaviour were inconsistent and had been
3948 changing anyway, so this is more a bug-fix than a behavioural
3950 [Geoff Thorpe, diagnosed by Nadav Har'El]
3952 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
3953 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
3956 *) Fix initialization code race conditions in
3957 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
3958 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
3959 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
3960 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
3961 ssl2_get_cipher_by_char(),
3962 ssl3_get_cipher_by_char().
3963 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
3965 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
3966 the cached sessions are flushed, as the remove_cb() might use ex_data
3967 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
3968 (see [openssl.org #212]).
3969 [Geoff Thorpe, Lutz Jaenicke]
3971 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
3972 length, instead of the encoding length to d2i_ASN1_OBJECT.
3975 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
3977 *) [In 0.9.6g-engine release:]
3978 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
3979 [Lynn Gazis <lgazis@rainbow.com>]
3981 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
3983 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
3984 and get fix the header length calculation.
3985 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
3986 Alon Kantor <alonk@checkpoint.com> (and others),
3989 *) Use proper error handling instead of 'assertions' in buffer
3990 overflow checks added in 0.9.6e. This prevents DoS (the
3991 assertions could call abort()).
3992 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
3994 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
3996 *) Add various sanity checks to asn1_get_length() to reject
3997 the ASN1 length bytes if they exceed sizeof(long), will appear
3998 negative or the content length exceeds the length of the
4000 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4002 *) Fix cipher selection routines: ciphers without encryption had no flags
4003 for the cipher strength set and where therefore not handled correctly
4004 by the selection routines (PR #130).
4007 *) Fix EVP_dsa_sha macro.
4011 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
4012 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
4013 that was added in OpenSSL 0.9.6d.
4015 As the countermeasure turned out to be incompatible with some
4016 broken SSL implementations, the new option is part of SSL_OP_ALL.
4017 SSL_OP_ALL is usually employed when compatibility with weird SSL
4018 implementations is desired (e.g. '-bugs' option to 's_client' and
4019 's_server'), so the new option is automatically set in many
4023 *) Changes in security patch:
4025 Changes marked "(CHATS)" were sponsored by the Defense Advanced
4026 Research Projects Agency (DARPA) and Air Force Research Laboratory,
4027 Air Force Materiel Command, USAF, under agreement number
4030 *) Add various sanity checks to asn1_get_length() to reject
4031 the ASN1 length bytes if they exceed sizeof(long), will appear
4032 negative or the content length exceeds the length of the
4033 supplied buffer. (CVE-2002-0659)
4034 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4036 *) Assertions for various potential buffer overflows, not known to
4038 [Ben Laurie (CHATS)]
4040 *) Various temporary buffers to hold ASCII versions of integers were
4041 too small for 64 bit platforms. (CVE-2002-0655)
4042 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
4044 *) Remote buffer overflow in SSL3 protocol - an attacker could
4045 supply an oversized session ID to a client. (CVE-2002-0656)
4046 [Ben Laurie (CHATS)]
4048 *) Remote buffer overflow in SSL2 protocol - an attacker could
4049 supply an oversized client master key. (CVE-2002-0656)
4050 [Ben Laurie (CHATS)]
4052 Changes between 0.9.6c and 0.9.6d [9 May 2002]
4054 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
4055 encoded as NULL) with id-dsa-with-sha1.
4056 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
4058 *) Check various X509_...() return values in apps/req.c.
4059 [Nils Larsch <nla@trustcenter.de>]
4061 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
4062 an end-of-file condition would erronously be flagged, when the CRLF
4063 was just at the end of a processed block. The bug was discovered when
4064 processing data through a buffering memory BIO handing the data to a
4065 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
4066 <ptsekov@syntrex.com> and Nedelcho Stanev.
4069 *) Implement a countermeasure against a vulnerability recently found
4070 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
4071 before application data chunks to avoid the use of known IVs
4072 with data potentially chosen by the attacker.
4075 *) Fix length checks in ssl3_get_client_hello().
4078 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
4079 to prevent ssl3_read_internal() from incorrectly assuming that
4080 ssl3_read_bytes() found application data while handshake
4081 processing was enabled when in fact s->s3->in_read_app_data was
4082 merely automatically cleared during the initial handshake.
4083 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
4085 *) Fix object definitions for Private and Enterprise: they were not
4086 recognized in their shortname (=lowercase) representation. Extend
4087 obj_dat.pl to issue an error when using undefined keywords instead
4088 of silently ignoring the problem (Svenning Sorensen
4089 <sss@sss.dnsalias.net>).
4092 *) Fix DH_generate_parameters() so that it works for 'non-standard'
4093 generators, i.e. generators other than 2 and 5. (Previously, the
4094 code did not properly initialise the 'add' and 'rem' values to
4095 BN_generate_prime().)
4097 In the new general case, we do not insist that 'generator' is
4098 actually a primitive root: This requirement is rather pointless;
4099 a generator of the order-q subgroup is just as good, if not
4103 *) Map new X509 verification errors to alerts. Discovered and submitted by
4104 Tom Wu <tom@arcot.com>.
4107 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
4108 returning non-zero before the data has been completely received
4109 when using non-blocking I/O.
4110 [Bodo Moeller; problem pointed out by John Hughes]
4112 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
4113 [Ben Laurie, Lutz Jaenicke]
4115 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
4116 Yoram Zahavi <YoramZ@gilian.com>).
4119 *) Add information about CygWin 1.3 and on, and preserve proper
4120 configuration for the versions before that.
4121 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
4123 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
4124 check whether we deal with a copy of a session and do not delete from
4125 the cache in this case. Problem reported by "Izhar Shoshani Levi"
4126 <izhar@checkpoint.com>.
4129 *) Do not store session data into the internal session cache, if it
4130 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
4131 flag is set). Proposed by Aslam <aslam@funk.com>.
4134 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
4138 *) [In 0.9.6d-engine release:]
4139 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4140 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4142 *) Add the configuration target linux-s390x.
4143 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
4145 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
4146 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
4147 variable as an indication that a ClientHello message has been
4148 received. As the flag value will be lost between multiple
4149 invocations of ssl3_accept when using non-blocking I/O, the
4150 function may not be aware that a handshake has actually taken
4151 place, thus preventing a new session from being added to the
4154 To avoid this problem, we now set s->new_session to 2 instead of
4155 using a local variable.
4156 [Lutz Jaenicke, Bodo Moeller]
4158 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
4159 if the SSL_R_LENGTH_MISMATCH error is detected.
4160 [Geoff Thorpe, Bodo Moeller]
4162 *) New 'shared_ldflag' column in Configure platform table.
4165 *) Fix EVP_CIPHER_mode macro.
4166 ["Dan S. Camper" <dan@bti.net>]
4168 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
4169 type, we must throw them away by setting rr->length to 0.
4170 [D P Chang <dpc@qualys.com>]
4172 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
4174 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
4175 <Dominikus.Scherkl@biodata.com>. (The previous implementation
4176 worked incorrectly for those cases where range = 10..._2 and
4177 3*range is two bits longer than range.)
4180 *) Only add signing time to PKCS7 structures if it is not already
4184 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
4185 OBJ_ld_ce should be OBJ_id_ce.
4186 Also some ip-pda OIDs in crypto/objects/objects.txt were
4187 incorrect (cf. RFC 3039).
4188 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
4190 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
4191 returns early because it has nothing to do.
4192 [Andy Schneider <andy.schneider@bjss.co.uk>]
4194 *) [In 0.9.6c-engine release:]
4195 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
4196 [Andy Schneider <andy.schneider@bjss.co.uk>]
4198 *) [In 0.9.6c-engine release:]
4199 Add support for Cryptographic Appliance's keyserver technology.
4200 (Use engine 'keyclient')
4201 [Cryptographic Appliances and Geoff Thorpe]
4203 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
4204 is called via tools/c89.sh because arguments have to be
4205 rearranged (all '-L' options must appear before the first object
4207 [Richard Shapiro <rshapiro@abinitio.com>]
4209 *) [In 0.9.6c-engine release:]
4210 Add support for Broadcom crypto accelerator cards, backported
4212 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
4214 *) [In 0.9.6c-engine release:]
4215 Add support for SureWare crypto accelerator cards from
4216 Baltimore Technologies. (Use engine 'sureware')
4217 [Baltimore Technologies and Mark Cox]
4219 *) [In 0.9.6c-engine release:]
4220 Add support for crypto accelerator cards from Accelerated
4221 Encryption Processing, www.aep.ie. (Use engine 'aep')
4222 [AEP Inc. and Mark Cox]
4224 *) Add a configuration entry for gcc on UnixWare.
4225 [Gary Benson <gbenson@redhat.com>]
4227 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
4228 messages are stored in a single piece (fixed-length part and
4229 variable-length part combined) and fix various bugs found on the way.
4232 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
4233 instead. BIO_gethostbyname() does not know what timeouts are
4234 appropriate, so entries would stay in cache even when they have
4236 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
4238 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
4239 faced with a pathologically small ClientHello fragment that does
4240 not contain client_version: Instead of aborting with an error,
4241 simply choose the highest available protocol version (i.e.,
4242 TLS 1.0 unless it is disabled). In practice, ClientHello
4243 messages are never sent like this, but this change gives us
4244 strictly correct behaviour at least for TLS.
4247 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
4248 never resets s->method to s->ctx->method when called from within
4249 one of the SSL handshake functions.
4250 [Bodo Moeller; problem pointed out by Niko Baric]
4252 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
4253 (sent using the client's version number) if client_version is
4254 smaller than the protocol version in use. Also change
4255 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
4256 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
4257 the client will at least see that alert.
4260 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
4264 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
4265 client receives HelloRequest while in a handshake.
4266 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
4268 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
4269 should end in 'break', not 'goto end' which circuments various
4270 cleanups done in state SSL_ST_OK. But session related stuff
4271 must be disabled for SSL_ST_OK in the case that we just sent a
4274 Also avoid some overhead by not calling ssl_init_wbio_buffer()
4275 before just sending a HelloRequest.
4276 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
4278 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
4279 reveal whether illegal block cipher padding was found or a MAC
4280 verification error occured. (Neither SSLerr() codes nor alerts
4281 are directly visible to potential attackers, but the information
4282 may leak via logfiles.)
4284 Similar changes are not required for the SSL 2.0 implementation
4285 because the number of padding bytes is sent in clear for SSL 2.0,
4286 and the extra bytes are just ignored. However ssl/s2_pkt.c
4287 failed to verify that the purported number of padding bytes is in
4291 *) Add OpenUNIX-8 support including shared libraries
4292 (Boyd Lynn Gerber <gerberb@zenez.com>).
4295 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
4296 'wristwatch attack' using huge encoding parameters (cf.
4297 James H. Manger's CRYPTO 2001 paper). Note that the
4298 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
4299 encoding parameters and hence was not vulnerable.
4302 *) BN_sqr() bug fix.
4303 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
4305 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
4306 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
4307 followed by modular reduction.
4308 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
4310 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
4311 equivalent based on BN_pseudo_rand() instead of BN_rand().
4314 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
4315 This function was broken, as the check for a new client hello message
4316 to handle SGC did not allow these large messages.
4317 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
4320 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
4323 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
4324 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
4327 *) Rework the configuration and shared library support for Tru64 Unix.
4328 The configuration part makes use of modern compiler features and
4329 still retains old compiler behavior for those that run older versions
4330 of the OS. The shared library support part includes a variant that
4331 uses the RPATH feature, and is available through the special
4332 configuration target "alpha-cc-rpath", which will never be selected
4334 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
4336 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
4337 with the same message size as in ssl3_get_certificate_request().
4338 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
4339 messages might inadvertently be reject as too long.
4340 [Petr Lampa <lampa@fee.vutbr.cz>]
4342 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
4345 *) Modified SSL library such that the verify_callback that has been set
4346 specificly for an SSL object with SSL_set_verify() is actually being
4347 used. Before the change, a verify_callback set with this function was
4348 ignored and the verify_callback() set in the SSL_CTX at the time of
4349 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
4350 to allow the necessary settings.
4353 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
4354 explicitly to NULL, as at least on Solaris 8 this seems not always to be
4355 done automatically (in contradiction to the requirements of the C
4356 standard). This made problems when used from OpenSSH.
4359 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
4360 dh->length and always used
4362 BN_rand_range(priv_key, dh->p).
4364 BN_rand_range() is not necessary for Diffie-Hellman, and this
4365 specific range makes Diffie-Hellman unnecessarily inefficient if
4366 dh->length (recommended exponent length) is much smaller than the
4367 length of dh->p. We could use BN_rand_range() if the order of
4368 the subgroup was stored in the DH structure, but we only have
4373 BN_rand(priv_key, l, ...)
4375 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
4381 RSA_eay_public_encrypt
4382 RSA_eay_private_decrypt
4383 RSA_eay_private_encrypt (signing)
4384 RSA_eay_public_decrypt (signature verification)
4386 (default implementations for RSA_public_encrypt,
4387 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
4388 always reject numbers >= n.
4391 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
4392 to synchronize access to 'locking_thread'. This is necessary on
4393 systems where access to 'locking_thread' (an 'unsigned long'
4394 variable) is not atomic.
4397 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
4398 *before* setting the 'crypto_lock_rand' flag. The previous code had
4399 a race condition if 0 is a valid thread ID.
4400 [Travis Vitek <vitek@roguewave.com>]
4402 *) Add support for shared libraries under Irix.
4403 [Albert Chin-A-Young <china@thewrittenword.com>]
4405 *) Add configuration option to build on Linux on both big-endian and
4407 [Ralf Baechle <ralf@uni-koblenz.de>]
4409 *) Add the possibility to create shared libraries on HP-UX.
4412 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
4414 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
4415 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
4416 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
4417 PRNG state recovery was possible based on the output of
4418 one PRNG request appropriately sized to gain knowledge on
4419 'md' followed by enough consecutive 1-byte PRNG requests
4420 to traverse all of 'state'.
4422 1. When updating 'md_local' (the current thread's copy of 'md')
4423 during PRNG output generation, hash all of the previous
4424 'md_local' value, not just the half used for PRNG output.
4426 2. Make the number of bytes from 'state' included into the hash
4427 independent from the number of PRNG bytes requested.
4429 The first measure alone would be sufficient to avoid
4430 Markku-Juhani's attack. (Actually it had never occurred
4431 to me that the half of 'md_local' used for chaining was the
4432 half from which PRNG output bytes were taken -- I had always
4433 assumed that the secret half would be used.) The second
4434 measure makes sure that additional data from 'state' is never
4435 mixed into 'md_local' in small portions; this heuristically
4436 further strengthens the PRNG.
4439 *) Fix crypto/bn/asm/mips3.s.
4442 *) When only the key is given to "enc", the IV is undefined. Print out
4443 an error message in this case.
4446 *) Handle special case when X509_NAME is empty in X509 printing routines.
4449 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
4450 positive and less than q.
4453 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
4454 used: it isn't thread safe and the add_lock_callback should handle
4456 [Paul Rose <Paul.Rose@bridge.com>]
4458 *) Verify that incoming data obeys the block size in
4459 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
4463 [Ulf Möller, Bodo Möller]
4465 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
4466 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
4467 when fixing the server behaviour for backwards-compatible 'client
4468 hello' messages. (Note that the attack is impractical against
4469 SSL 3.0 and TLS 1.0 anyway because length and version checking
4470 means that the probability of guessing a valid ciphertext is
4471 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
4474 Before 0.9.5, the countermeasure (hide the error by generating a
4475 random 'decryption result') did not work properly because
4476 ERR_clear_error() was missing, meaning that SSL_get_error() would
4477 detect the supposedly ignored error.
4479 Both problems are now fixed.
4482 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
4483 (previously it was 1024).
4486 *) Fix for compatibility mode trust settings: ignore trust settings
4487 unless some valid trust or reject settings are present.
4490 *) Fix for blowfish EVP: its a variable length cipher.
4493 *) Fix various bugs related to DSA S/MIME verification. Handle missing
4494 parameters in DSA public key structures and return an error in the
4495 DSA routines if parameters are absent.
4498 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
4499 in the current directory if neither $RANDFILE nor $HOME was set.
4500 RAND_file_name() in 0.9.6a returned NULL in this case. This has
4501 caused some confusion to Windows users who haven't defined $HOME.
4502 Thus RAND_file_name() is changed again: e_os.h can define a
4503 DEFAULT_HOME, which will be used if $HOME is not set.
4504 For Windows, we use "C:"; on other platforms, we still require
4505 environment variables.
4507 *) Move 'if (!initialized) RAND_poll()' into regions protected by
4508 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
4509 having multiple threads call RAND_poll() concurrently.
4512 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
4513 combination of a flag and a thread ID variable.
4514 Otherwise while one thread is in ssleay_rand_bytes (which sets the
4515 flag), *other* threads can enter ssleay_add_bytes without obeying
4516 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
4517 that they do not hold after the first thread unsets add_do_not_lock).
4520 *) Change bctest again: '-x' expressions are not available in all
4524 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
4526 *) Fix a couple of memory leaks in PKCS7_dataDecode()
4527 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
4529 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
4530 the default extension for executables, if any. Also, make the perl
4531 scripts that use symlink() to test if it really exists and use "cp"
4532 if it doesn't. All this made OpenSSL compilable and installable in
4536 *) Fix for asn1_GetSequence() for indefinite length constructed data.
4537 If SEQUENCE is length is indefinite just set c->slen to the total
4538 amount of data available.
4539 [Steve Henson, reported by shige@FreeBSD.org]
4540 [This change does not apply to 0.9.7.]
4542 *) Change bctest to avoid here-documents inside command substitution
4543 (workaround for FreeBSD /bin/sh bug).
4544 For compatibility with Ultrix, avoid shell functions (introduced
4545 in the bctest version that searches along $PATH).
4548 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
4549 with des_encrypt() defined on some operating systems, like Solaris
4553 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
4554 On the Importance of Eliminating Errors in Cryptographic
4555 Computations, J. Cryptology 14 (2001) 2, 101-119,
4556 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
4559 *) MIPS assembler BIGNUM division bug fix.
4562 *) Disabled incorrect Alpha assembler code.
4565 *) Fix PKCS#7 decode routines so they correctly update the length
4566 after reading an EOC for the EXPLICIT tag.
4568 [This change does not apply to 0.9.7.]
4570 *) Fix bug in PKCS#12 key generation routines. This was triggered
4571 if a 3DES key was generated with a 0 initial byte. Include
4572 PKCS12_BROKEN_KEYGEN compilation option to retain the old
4573 (but broken) behaviour.
4576 *) Enhance bctest to search for a working bc along $PATH and print
4578 [Tim Rice <tim@multitalents.net> via Richard Levitte]
4580 *) Fix memory leaks in err.c: free err_data string if necessary;
4581 don't write to the wrong index in ERR_set_error_data.
4584 *) Implement ssl23_peek (analogous to ssl23_read), which previously
4588 *) Replace rdtsc with _emit statements for VC++ version 5.
4589 [Jeremy Cooper <jeremy@baymoo.org>]
4591 *) Make it possible to reuse SSLv2 sessions.
4594 *) In copy_email() check for >= 0 as a return value for
4595 X509_NAME_get_index_by_NID() since 0 is a valid index.
4596 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
4598 *) Avoid coredump with unsupported or invalid public keys by checking if
4599 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
4600 PKCS7_verify() fails with non detached data.
4603 *) Don't use getenv in library functions when run as setuid/setgid.
4604 New function OPENSSL_issetugid().
4607 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
4608 due to incorrect handling of multi-threading:
4610 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
4612 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
4614 3. Count how many times MemCheck_off() has been called so that
4615 nested use can be treated correctly. This also avoids
4616 inband-signalling in the previous code (which relied on the
4617 assumption that thread ID 0 is impossible).
4620 *) Add "-rand" option also to s_client and s_server.
4623 *) Fix CPU detection on Irix 6.x.
4624 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
4625 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4627 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
4630 [This change does not apply to 0.9.7.]
4632 *) Use the cached encoding of an X509_NAME structure rather than
4633 copying it. This is apparently the reason for the libsafe "errors"
4634 but the code is actually correct.
4637 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
4638 Bleichenbacher's DSA attack.
4639 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
4640 to be set and top=0 forces the highest bit to be set; top=-1 is new
4641 and leaves the highest bit random.
4642 [Ulf Moeller, Bodo Moeller]
4644 *) In the NCONF_...-based implementations for CONF_... queries
4645 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
4646 a temporary CONF structure with the data component set to NULL
4647 (which gives segmentation faults in lh_retrieve).
4648 Instead, use NULL for the CONF pointer in CONF_get_string and
4649 CONF_get_number (which may use environment variables) and directly
4650 return NULL from CONF_get_section.
4653 *) Fix potential buffer overrun for EBCDIC.
4656 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
4657 keyUsage if basicConstraints absent for a CA.
4660 *) Make SMIME_write_PKCS7() write mail header values with a format that
4661 is more generally accepted (no spaces before the semicolon), since
4662 some programs can't parse those values properly otherwise. Also make
4663 sure BIO's that break lines after each write do not create invalid
4667 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
4668 macros previously used would not encode an empty SEQUENCE OF
4669 and break the signature.
4671 [This change does not apply to 0.9.7.]
4673 *) Zero the premaster secret after deriving the master secret in
4677 *) Add some EVP_add_digest_alias registrations (as found in
4678 OpenSSL_add_all_digests()) to SSL_library_init()
4679 aka OpenSSL_add_ssl_algorithms(). This provides improved
4680 compatibility with peers using X.509 certificates
4681 with unconventional AlgorithmIdentifier OIDs.
4684 *) Fix for Irix with NO_ASM.
4685 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4687 *) ./config script fixes.
4688 [Ulf Moeller, Richard Levitte]
4690 *) Fix 'openssl passwd -1'.
4693 *) Change PKCS12_key_gen_asc() so it can cope with non null
4694 terminated strings whose length is passed in the passlen
4695 parameter, for example from PEM callbacks. This was done
4696 by adding an extra length parameter to asc2uni().
4697 [Steve Henson, reported by <oddissey@samsung.co.kr>]
4699 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
4700 call failed, free the DSA structure.
4703 *) Fix to uni2asc() to cope with zero length Unicode strings.
4704 These are present in some PKCS#12 files.
4707 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
4708 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
4709 when writing a 32767 byte record.
4710 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
4712 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
4713 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
4715 (RSA objects have a reference count access to which is protected
4716 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
4717 so they are meant to be shared between threads.)
4718 [Bodo Moeller, Geoff Thorpe; original patch submitted by
4719 "Reddie, Steven" <Steven.Reddie@ca.com>]
4721 *) Fix a deadlock in CRYPTO_mem_leaks().
4724 *) Use better test patterns in bntest.
4727 *) rand_win.c fix for Borland C.
4730 *) BN_rshift bugfix for n == 0.
4733 *) Add a 'bctest' script that checks for some known 'bc' bugs
4734 so that 'make test' does not abort just because 'bc' is broken.
4737 *) Store verify_result within SSL_SESSION also for client side to
4738 avoid potential security hole. (Re-used sessions on the client side
4739 always resulted in verify_result==X509_V_OK, not using the original
4740 result of the server certificate verification.)
4743 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
4744 SSL3_RT_APPLICATION_DATA, return 0.
4745 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
4749 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
4750 releases, have been re-implemented by renaming the previous
4751 implementations of ssl2_read and ssl3_read to ssl2_read_internal
4752 and ssl3_read_internal, respectively, and adding 'peek' parameters
4753 to them. The new ssl[23]_{read,peek} functions are calls to
4754 ssl[23]_read_internal with the 'peek' flag set appropriately.
4755 A 'peek' parameter has also been added to ssl3_read_bytes, which
4756 does the actual work for ssl3_read_internal.
4759 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
4760 the method-specific "init()" handler. Also clean up ex_data after
4761 calling the method-specific "finish()" handler. Previously, this was
4762 happening the other way round.
4765 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
4766 The previous value, 12, was not always sufficient for BN_mod_exp().
4769 *) Make sure that shared libraries get the internal name engine with
4770 the full version number and not just 0. This should mark the
4771 shared libraries as not backward compatible. Of course, this should
4772 be changed again when we can guarantee backward binary compatibility.
4775 *) Fix typo in get_cert_by_subject() in by_dir.c
4776 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
4778 *) Rework the system to generate shared libraries:
4780 - Make note of the expected extension for the shared libraries and
4781 if there is a need for symbolic links from for example libcrypto.so.0
4782 to libcrypto.so.0.9.7. There is extended info in Configure for
4785 - Make as few rebuilds of the shared libraries as possible.
4787 - Still avoid linking the OpenSSL programs with the shared libraries.
4789 - When installing, install the shared libraries separately from the
4793 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
4795 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
4796 and not in SSL_clear because the latter is also used by the
4797 accept/connect functions; previously, the settings made by
4798 SSL_set_read_ahead would be lost during the handshake.
4799 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
4801 *) Correct util/mkdef.pl to be selective about disabled algorithms.
4802 Previously, it would create entries for disableed algorithms no
4806 *) Added several new manual pages for SSL_* function.
4809 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
4811 *) In ssl23_get_client_hello, generate an error message when faced
4812 with an initial SSL 3.0/TLS record that is too small to contain the
4813 first two bytes of the ClientHello message, i.e. client_version.
4814 (Note that this is a pathologic case that probably has never happened
4815 in real life.) The previous approach was to use the version number
4816 from the record header as a substitute; but our protocol choice
4817 should not depend on that one because it is not authenticated
4818 by the Finished messages.
4821 *) More robust randomness gathering functions for Windows.
4822 [Jeffrey Altman <jaltman@columbia.edu>]
4824 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
4825 not set then we don't setup the error code for issuer check errors
4826 to avoid possibly overwriting other errors which the callback does
4827 handle. If an application does set the flag then we assume it knows
4828 what it is doing and can handle the new informational codes
4832 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
4833 a general "ANY" type, as such it should be able to decode anything
4834 including tagged types. However it didn't check the class so it would
4835 wrongly interpret tagged types in the same way as their universal
4836 counterpart and unknown types were just rejected. Changed so that the
4837 tagged and unknown types are handled in the same way as a SEQUENCE:
4838 that is the encoding is stored intact. There is also a new type
4839 "V_ASN1_OTHER" which is used when the class is not universal, in this
4840 case we have no idea what the actual type is so we just lump them all
4844 *) On VMS, stdout may very well lead to a file that is written to
4845 in a record-oriented fashion. That means that every write() will
4846 write a separate record, which will be read separately by the
4847 programs trying to read from it. This can be very confusing.
4849 The solution is to put a BIO filter in the way that will buffer
4850 text until a linefeed is reached, and then write everything a
4851 line at a time, so every record written will be an actual line,
4852 not chunks of lines and not (usually doesn't happen, but I've
4853 seen it once) several lines in one record. BIO_f_linebuffer() is
4856 Currently, it's a VMS-only method, because that's where it has
4857 been tested well enough.
4860 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
4861 it can return incorrect results.
4862 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
4863 but it was in 0.9.6-beta[12].)
4866 *) Disable the check for content being present when verifying detached
4867 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
4868 include zero length content when signing messages.
4871 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
4872 BIO_ctrl (for BIO pairs).
4875 *) Add DSO method for VMS.
4878 *) Bug fix: Montgomery multiplication could produce results with the
4882 *) Add RPM specification openssl.spec and modify it to build three
4883 packages. The default package contains applications, application
4884 documentation and run-time libraries. The devel package contains
4885 include files, static libraries and function documentation. The
4886 doc package contains the contents of the doc directory. The original
4887 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
4890 *) Add a large number of documentation files for many SSL routines.
4891 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
4893 *) Add a configuration entry for Sony News 4.
4894 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
4896 *) Don't set the two most significant bits to one when generating a
4897 random number < q in the DSA library.
4900 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
4901 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
4902 the underlying transport is blocking) if a handshake took place.
4903 (The default behaviour is needed by applications such as s_client
4904 and s_server that use select() to determine when to use SSL_read;
4905 but for applications that know in advance when to expect data, it
4906 just makes things more complicated.)
4909 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
4913 *) Add a few more EBCDIC conditionals that make `req' and `x509'
4914 work better on such systems.
4915 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
4917 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
4918 Update PKCS12_parse() so it copies the friendlyName and the
4919 keyid to the certificates aux info.
4922 *) Fix bug in PKCS7_verify() which caused an infinite loop
4923 if there was more than one signature.
4924 [Sven Uszpelkat <su@celocom.de>]
4926 *) Major change in util/mkdef.pl to include extra information
4927 about each symbol, as well as presentig variables as well
4928 as functions. This change means that there's n more need
4929 to rebuild the .num files when some algorithms are excluded.
4932 *) Allow the verify time to be set by an application,
4933 rather than always using the current time.
4936 *) Phase 2 verify code reorganisation. The certificate
4937 verify code now looks up an issuer certificate by a
4938 number of criteria: subject name, authority key id
4939 and key usage. It also verifies self signed certificates
4940 by the same criteria. The main comparison function is
4941 X509_check_issued() which performs these checks.
4943 Lot of changes were necessary in order to support this
4944 without completely rewriting the lookup code.
4946 Authority and subject key identifier are now cached.
4948 The LHASH 'certs' is X509_STORE has now been replaced
4949 by a STACK_OF(X509_OBJECT). This is mainly because an
4950 LHASH can't store or retrieve multiple objects with
4951 the same hash value.
4953 As a result various functions (which were all internal
4954 use only) have changed to handle the new X509_STORE
4955 structure. This will break anything that messed round
4956 with X509_STORE internally.
4958 The functions X509_STORE_add_cert() now checks for an
4959 exact match, rather than just subject name.
4961 The X509_STORE API doesn't directly support the retrieval
4962 of multiple certificates matching a given criteria, however
4963 this can be worked round by performing a lookup first
4964 (which will fill the cache with candidate certificates)
4965 and then examining the cache for matches. This is probably
4966 the best we can do without throwing out X509_LOOKUP
4967 entirely (maybe later...).
4969 The X509_VERIFY_CTX structure has been enhanced considerably.
4971 All certificate lookup operations now go via a get_issuer()
4972 callback. Although this currently uses an X509_STORE it
4973 can be replaced by custom lookups. This is a simple way
4974 to bypass the X509_STORE hackery necessary to make this
4975 work and makes it possible to use more efficient techniques
4976 in future. A very simple version which uses a simple
4977 STACK for its trusted certificate store is also provided
4978 using X509_STORE_CTX_trusted_stack().
4980 The verify_cb() and verify() callbacks now have equivalents
4981 in the X509_STORE_CTX structure.
4983 X509_STORE_CTX also has a 'flags' field which can be used
4984 to customise the verify behaviour.
4987 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
4988 excludes S/MIME capabilities.
4991 *) When a certificate request is read in keep a copy of the
4992 original encoding of the signed data and use it when outputing
4993 again. Signatures then use the original encoding rather than
4994 a decoded, encoded version which may cause problems if the
4995 request is improperly encoded.
4998 *) For consistency with other BIO_puts implementations, call
4999 buffer_write(b, ...) directly in buffer_puts instead of calling
5002 In BIO_puts, increment b->num_write as in BIO_write.
5003 [Peter.Sylvester@EdelWeb.fr]
5005 *) Fix BN_mul_word for the case where the word is 0. (We have to use
5006 BN_zero, we may not return a BIGNUM with an array consisting of
5010 *) Avoid calling abort() from within the library when problems are
5011 detected, except if preprocessor symbols have been defined
5012 (such as REF_CHECK, BN_DEBUG etc.).
5015 *) New openssl application 'rsautl'. This utility can be
5016 used for low level RSA operations. DER public key
5017 BIO/fp routines also added.
5020 *) New Configure entry and patches for compiling on QNX 4.
5021 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
5023 *) A demo state-machine implementation was sponsored by
5024 Nuron (http://www.nuron.com/) and is now available in
5025 demos/state_machine.
5028 *) New options added to the 'dgst' utility for signature
5029 generation and verification.
5032 *) Unrecognized PKCS#7 content types are now handled via a
5033 catch all ASN1_TYPE structure. This allows unsupported
5034 types to be stored as a "blob" and an application can
5035 encode and decode it manually.
5038 *) Fix various signed/unsigned issues to make a_strex.c
5040 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
5042 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
5043 length if passed a buffer. ASN1_INTEGER_to_BN failed
5044 if passed a NULL BN and its argument was negative.
5045 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
5047 *) Modification to PKCS#7 encoding routines to output definite
5048 length encoding. Since currently the whole structures are in
5049 memory there's not real point in using indefinite length
5050 constructed encoding. However if OpenSSL is compiled with
5051 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
5054 *) Added BIO_vprintf() and BIO_vsnprintf().
5057 *) Added more prefixes to parse for in the the strings written
5058 through a logging bio, to cover all the levels that are available
5059 through syslog. The prefixes are now:
5061 PANIC, EMERG, EMR => LOG_EMERG
5062 ALERT, ALR => LOG_ALERT
5063 CRIT, CRI => LOG_CRIT
5064 ERROR, ERR => LOG_ERR
5065 WARNING, WARN, WAR => LOG_WARNING
5066 NOTICE, NOTE, NOT => LOG_NOTICE
5067 INFO, INF => LOG_INFO
5068 DEBUG, DBG => LOG_DEBUG
5070 and as before, if none of those prefixes are present at the
5071 beginning of the string, LOG_ERR is chosen.
5073 On Win32, the LOG_* levels are mapped according to this:
5075 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
5076 LOG_WARNING => EVENTLOG_WARNING_TYPE
5077 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
5081 *) Made it possible to reconfigure with just the configuration
5082 argument "reconf" or "reconfigure". The command line arguments
5083 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
5084 and are retrieved from there when reconfiguring.
5088 [Assar Westerlund <assar@sics.se>, Richard Levitte]
5090 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
5093 *) The obj_dat.pl script was messing up the sorting of object
5094 names. The reason was that it compared the quoted version
5095 of strings as a result "OCSP" > "OCSP Signing" because
5096 " > SPACE. Changed script to store unquoted versions of
5097 names and add quotes on output. It was also omitting some
5098 names from the lookup table if they were given a default
5099 value (that is if SN is missing it is given the same
5100 value as LN and vice versa), these are now added on the
5101 grounds that if an object has a name we should be able to
5102 look it up. Finally added warning output when duplicate
5103 short or long names are found.
5106 *) Changes needed for Tandem NSK.
5107 [Scott Uroff <scott@xypro.com>]
5109 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
5110 RSA_padding_check_SSLv23(), special padding was never detected
5111 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
5112 version rollback attacks was not effective.
5114 In s23_clnt.c, don't use special rollback-attack detection padding
5115 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
5116 client; similarly, in s23_srvr.c, don't do the rollback check if
5117 SSL 2.0 is the only protocol enabled in the server.
5120 *) Make it possible to get hexdumps of unprintable data with 'openssl
5121 asn1parse'. By implication, the functions ASN1_parse_dump() and
5122 BIO_dump_indent() are added.
5125 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
5126 these print out strings and name structures based on various
5127 flags including RFC2253 support and proper handling of
5128 multibyte characters. Added options to the 'x509' utility
5129 to allow the various flags to be set.
5132 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
5133 Also change the functions X509_cmp_current_time() and
5134 X509_gmtime_adj() work with an ASN1_TIME structure,
5135 this will enable certificates using GeneralizedTime in validity
5136 dates to be checked.
5139 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
5140 negative public key encodings) on by default,
5141 NO_NEG_PUBKEY_BUG can be set to disable it.
5144 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
5145 content octets. An i2c_ASN1_OBJECT is unnecessary because
5146 the encoding can be trivially obtained from the structure.
5149 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
5150 not read locks (CRYPTO_r_[un]lock).
5153 *) A first attempt at creating official support for shared
5154 libraries through configuration. I've kept it so the
5155 default is static libraries only, and the OpenSSL programs
5156 are always statically linked for now, but there are
5157 preparations for dynamic linking in place.
5158 This has been tested on Linux and Tru64.
5161 *) Randomness polling function for Win9x, as described in:
5162 Peter Gutmann, Software Generation of Practically Strong
5166 *) Fix so PRNG is seeded in req if using an already existing
5170 *) New options to smime application. -inform and -outform
5171 allow alternative formats for the S/MIME message including
5172 PEM and DER. The -content option allows the content to be
5173 specified separately. This should allow things like Netscape
5174 form signing output easier to verify.
5177 *) Fix the ASN1 encoding of tags using the 'long form'.
5180 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
5181 STRING types. These convert content octets to and from the
5182 underlying type. The actual tag and length octets are
5183 already assumed to have been read in and checked. These
5184 are needed because all other string types have virtually
5185 identical handling apart from the tag. By having versions
5186 of the ASN1 functions that just operate on content octets
5187 IMPLICIT tagging can be handled properly. It also allows
5188 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
5189 and ASN1_INTEGER are identical apart from the tag.
5192 *) Change the handling of OID objects as follows:
5194 - New object identifiers are inserted in objects.txt, following
5195 the syntax given in objects.README.
5196 - objects.pl is used to process obj_mac.num and create a new
5198 - obj_dat.pl is used to create a new obj_dat.h, using the data in
5201 This is currently kind of a hack, and the perl code in objects.pl
5202 isn't very elegant, but it works as I intended. The simplest way
5203 to check that it worked correctly is to look in obj_dat.h and
5204 check the array nid_objs and make sure the objects haven't moved
5205 around (this is important!). Additions are OK, as well as
5206 consistent name changes.
5209 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
5212 *) Addition of the command line parameter '-rand file' to 'openssl req'.
5213 The given file adds to whatever has already been seeded into the
5214 random pool through the RANDFILE configuration file option or
5215 environment variable, or the default random state file.
5218 *) mkstack.pl now sorts each macro group into lexical order.
5219 Previously the output order depended on the order the files
5220 appeared in the directory, resulting in needless rewriting
5224 *) Patches to make OpenSSL compile under Win32 again. Mostly
5225 work arounds for the VC++ problem that it treats func() as
5226 func(void). Also stripped out the parts of mkdef.pl that
5227 added extra typesafe functions: these no longer exist.
5230 *) Reorganisation of the stack code. The macros are now all
5231 collected in safestack.h . Each macro is defined in terms of
5232 a "stack macro" of the form SKM_<name>(type, a, b). The
5233 DEBUG_SAFESTACK is now handled in terms of function casts,
5234 this has the advantage of retaining type safety without the
5235 use of additional functions. If DEBUG_SAFESTACK is not defined
5236 then the non typesafe macros are used instead. Also modified the
5237 mkstack.pl script to handle the new form. Needs testing to see
5238 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
5239 the default if no major problems. Similar behaviour for ASN1_SET_OF
5240 and PKCS12_STACK_OF.
5243 *) When some versions of IIS use the 'NET' form of private key the
5244 key derivation algorithm is different. Normally MD5(password) is
5245 used as a 128 bit RC4 key. In the modified case
5246 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
5247 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
5248 as the old Netscape_RSA functions except they have an additional
5249 'sgckey' parameter which uses the modified algorithm. Also added
5250 an -sgckey command line option to the rsa utility. Thanks to
5251 Adrian Peck <bertie@ncipher.com> for posting details of the modified
5252 algorithm to openssl-dev.
5255 *) The evp_local.h macros were using 'c.##kname' which resulted in
5256 invalid expansion on some systems (SCO 5.0.5 for example).
5257 Corrected to 'c.kname'.
5258 [Phillip Porch <root@theporch.com>]
5260 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
5261 a STACK of email addresses from a certificate or request, these look
5262 in the subject name and the subject alternative name extensions and
5263 omit any duplicate addresses.
5266 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
5267 This makes DSA verification about 2 % faster.
5270 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
5271 (meaning that now 2^5 values will be precomputed, which is only 4 KB
5272 plus overhead for 1024 bit moduli).
5273 This makes exponentiations about 0.5 % faster for 1024 bit
5274 exponents (as measured by "openssl speed rsa2048").
5277 *) Rename memory handling macros to avoid conflicts with other
5279 Malloc => OPENSSL_malloc
5280 Malloc_locked => OPENSSL_malloc_locked
5281 Realloc => OPENSSL_realloc
5282 Free => OPENSSL_free
5285 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
5286 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
5289 *) CygWin32 support.
5290 [John Jarvie <jjarvie@newsguy.com>]
5292 *) The type-safe stack code has been rejigged. It is now only compiled
5293 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
5294 by default all type-specific stack functions are "#define"d back to
5295 standard stack functions. This results in more streamlined output
5296 but retains the type-safety checking possibilities of the original
5300 *) The STACK code has been cleaned up, and certain type declarations
5301 that didn't make a lot of sense have been brought in line. This has
5302 also involved a cleanup of sorts in safestack.h to more correctly
5303 map type-safe stack functions onto their plain stack counterparts.
5304 This work has also resulted in a variety of "const"ifications of
5305 lots of the code, especially "_cmp" operations which should normally
5306 be prototyped with "const" parameters anyway.
5309 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
5310 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
5311 (The PRNG state consists of two parts, the large pool 'state' and 'md',
5312 where all of 'md' is used each time the PRNG is used, but 'state'
5313 is used only indexed by a cyclic counter. As entropy may not be
5314 well distributed from the beginning, 'md' is important as a
5315 chaining variable. However, the output function chains only half
5316 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
5317 all of 'md', and seeding with STATE_SIZE dummy bytes will result
5318 in all of 'state' being rewritten, with the new values depending
5319 on virtually all of 'md'. This overcomes the 80 bit limitation.)
5322 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
5323 the handshake is continued after ssl_verify_cert_chain();
5324 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
5325 can lead to 'unexplainable' connection aborts later.
5326 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
5328 *) Major EVP API cipher revision.
5329 Add hooks for extra EVP features. This allows various cipher
5330 parameters to be set in the EVP interface. Support added for variable
5331 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
5332 setting of RC2 and RC5 parameters.
5334 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
5337 Remove lots of duplicated code from the EVP library. For example *every*
5338 cipher init() function handles the 'iv' in the same way according to the
5339 cipher mode. They also all do nothing if the 'key' parameter is NULL and
5340 for CFB and OFB modes they zero ctx->num.
5342 New functionality allows removal of S/MIME code RC2 hack.
5344 Most of the routines have the same form and so can be declared in terms
5347 By shifting this to the top level EVP_CipherInit() it can be removed from
5348 all individual ciphers. If the cipher wants to handle IVs or keys
5349 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
5352 Change lots of functions like EVP_EncryptUpdate() to now return a
5353 value: although software versions of the algorithms cannot fail
5354 any installed hardware versions can.
5357 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
5358 this option is set, tolerate broken clients that send the negotiated
5359 protocol version number instead of the requested protocol version
5363 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
5364 i.e. non-zero for export ciphersuites, zero otherwise.
5365 Previous versions had this flag inverted, inconsistent with
5366 rsa_tmp_cb (..._TMP_RSA_CB).
5367 [Bodo Moeller; problem reported by Amit Chopra]
5369 *) Add missing DSA library text string. Work around for some IIS
5370 key files with invalid SEQUENCE encoding.
5373 *) Add a document (doc/standards.txt) that list all kinds of standards
5374 and so on that are implemented in OpenSSL.
5377 *) Enhance c_rehash script. Old version would mishandle certificates
5378 with the same subject name hash and wouldn't handle CRLs at all.
5379 Added -fingerprint option to crl utility, to support new c_rehash
5383 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
5386 *) Fix for SSL server purpose checking. Server checking was
5387 rejecting certificates which had extended key usage present
5388 but no ssl client purpose.
5389 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
5391 *) Make PKCS#12 code work with no password. The PKCS#12 spec
5392 is a little unclear about how a blank password is handled.
5393 Since the password in encoded as a BMPString with terminating
5394 double NULL a zero length password would end up as just the
5395 double NULL. However no password at all is different and is
5396 handled differently in the PKCS#12 key generation code. NS
5397 treats a blank password as zero length. MSIE treats it as no
5398 password on export: but it will try both on import. We now do
5399 the same: PKCS12_parse() tries zero length and no password if
5400 the password is set to "" or NULL (NULL is now a valid password:
5401 it wasn't before) as does the pkcs12 application.
5404 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
5405 perror when PEM_read_bio_X509_REQ fails, the error message must
5406 be obtained from the error queue.
5409 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
5410 it in ERR_remove_state if appropriate, and change ERR_get_state
5411 accordingly to avoid race conditions (this is necessary because
5412 thread_hash is no longer constant once set).
5415 *) Bugfix for linux-elf makefile.one.
5418 *) RSA_get_default_method() will now cause a default
5419 RSA_METHOD to be chosen if one doesn't exist already.
5420 Previously this was only set during a call to RSA_new()
5421 or RSA_new_method(NULL) meaning it was possible for
5422 RSA_get_default_method() to return NULL.
5425 *) Added native name translation to the existing DSO code
5426 that will convert (if the flag to do so is set) filenames
5427 that are sufficiently small and have no path information
5428 into a canonical native form. Eg. "blah" converted to
5429 "libblah.so" or "blah.dll" etc.
5432 *) New function ERR_error_string_n(e, buf, len) which is like
5433 ERR_error_string(e, buf), but writes at most 'len' bytes
5434 including the 0 terminator. For ERR_error_string_n, 'buf'
5436 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
5438 *) CONF library reworked to become more general. A new CONF
5439 configuration file reader "class" is implemented as well as a
5440 new functions (NCONF_*, for "New CONF") to handle it. The now
5441 old CONF_* functions are still there, but are reimplemented to
5442 work in terms of the new functions. Also, a set of functions
5443 to handle the internal storage of the configuration data is
5444 provided to make it easier to write new configuration file
5445 reader "classes" (I can definitely see something reading a
5446 configuration file in XML format, for example), called _CONF_*,
5447 or "the configuration storage API"...
5449 The new configuration file reading functions are:
5451 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
5452 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
5454 NCONF_default, NCONF_WIN32
5456 NCONF_dump_fp, NCONF_dump_bio
5458 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
5459 NCONF_new creates a new CONF object. This works in the same way
5460 as other interfaces in OpenSSL, like the BIO interface.
5461 NCONF_dump_* dump the internal storage of the configuration file,
5462 which is useful for debugging. All other functions take the same
5463 arguments as the old CONF_* functions wth the exception of the
5464 first that must be a `CONF *' instead of a `LHASH *'.
5466 To make it easer to use the new classes with the old CONF_* functions,
5467 the function CONF_set_default_method is provided.
5470 *) Add '-tls1' option to 'openssl ciphers', which was already
5471 mentioned in the documentation but had not been implemented.
5472 (This option is not yet really useful because even the additional
5473 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
5476 *) Initial DSO code added into libcrypto for letting OpenSSL (and
5477 OpenSSL-based applications) load shared libraries and bind to
5478 them in a portable way.
5479 [Geoff Thorpe, with contributions from Richard Levitte]
5481 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
5483 *) Make sure _lrotl and _lrotr are only used with MSVC.
5485 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
5486 (the default implementation of RAND_status).
5488 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
5489 to '-clrext' (= clear extensions), as intended and documented.
5490 [Bodo Moeller; inconsistency pointed out by Michael Attili
5493 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
5494 was larger than the MD block size.
5495 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
5497 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
5498 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
5499 using the passed key: if the passed key was a private key the result
5500 of X509_print(), for example, would be to print out all the private key
5504 *) des_quad_cksum() byte order bug fix.
5505 [Ulf Möller, using the problem description in krb4-0.9.7, where
5506 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
5508 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
5510 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
5512 *) For easily testing in shell scripts whether some command
5513 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
5514 returns with exit code 0 iff no command of the given name is available.
5515 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
5516 the output goes to stdout and nothing is printed to stderr.
5517 Additional arguments are always ignored.
5519 Since for each cipher there is a command of the same name,
5520 the 'no-cipher' compilation switches can be tested this way.
5522 ('openssl no-XXX' is not able to detect pseudo-commands such
5523 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
5526 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
5529 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
5530 is set; it will be thrown away anyway because each handshake creates
5532 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
5533 to parameters -- in previous versions (since OpenSSL 0.9.3) the
5534 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
5535 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
5538 *) New s_client option -ign_eof: EOF at stdin is ignored, and
5539 'Q' and 'R' lose their special meanings (quit/renegotiate).
5540 This is part of what -quiet does; unlike -quiet, -ign_eof
5541 does not suppress any output.
5544 *) Add compatibility options to the purpose and trust code. The
5545 purpose X509_PURPOSE_ANY is "any purpose" which automatically
5546 accepts a certificate or CA, this was the previous behaviour,
5547 with all the associated security issues.
5549 X509_TRUST_COMPAT is the old trust behaviour: only and
5550 automatically trust self signed roots in certificate store. A
5551 new trust setting X509_TRUST_DEFAULT is used to specify that
5552 a purpose has no associated trust setting and it should instead
5553 use the value in the default purpose.
5556 *) Fix the PKCS#8 DSA private key code so it decodes keys again
5557 and fix a memory leak.
5560 *) In util/mkerr.pl (which implements 'make errors'), preserve
5561 reason strings from the previous version of the .c file, as
5562 the default to have only downcase letters (and digits) in
5563 automatically generated reasons codes is not always appropriate.
5566 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
5567 using strerror. Previously, ERR_reason_error_string() returned
5568 library names as reason strings for SYSerr; but SYSerr is a special
5569 case where small numbers are errno values, not library numbers.
5572 *) Add '-dsaparam' option to 'openssl dhparam' application. This
5573 converts DSA parameters into DH parameters. (When creating parameters,
5574 DSA_generate_parameters is used.)
5577 *) Include 'length' (recommended exponent length) in C code generated
5578 by 'openssl dhparam -C'.
5581 *) The second argument to set_label in perlasm was already being used
5582 so couldn't be used as a "file scope" flag. Moved to third argument
5586 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
5587 instead of RAND_bytes for encryption IVs and salts.
5590 *) Include RAND_status() into RAND_METHOD instead of implementing
5591 it only for md_rand.c Otherwise replacing the PRNG by calling
5592 RAND_set_rand_method would be impossible.
5595 *) Don't let DSA_generate_key() enter an infinite loop if the random
5596 number generation fails.
5599 *) New 'rand' application for creating pseudo-random output.
5602 *) Added configuration support for Linux/IA64
5603 [Rolf Haberrecker <rolf@suse.de>]
5605 *) Assembler module support for Mingw32.
5608 *) Shared library support for HPUX (in shlib/).
5609 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
5611 *) Shared library support for Solaris gcc.
5612 [Lutz Behnke <behnke@trustcenter.de>]
5614 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
5616 *) PKCS7_encrypt() was adding text MIME headers twice because they
5617 were added manually and by SMIME_crlf_copy().
5620 *) In bntest.c don't call BN_rand with zero bits argument.
5621 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
5623 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
5624 case was implemented. This caused BN_div_recp() to fail occasionally.
5627 *) Add an optional second argument to the set_label() in the perl
5628 assembly language builder. If this argument exists and is set
5629 to 1 it signals that the assembler should use a symbol whose
5630 scope is the entire file, not just the current function. This
5631 is needed with MASM which uses the format label:: for this scope.
5632 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
5634 *) Change the ASN1 types so they are typedefs by default. Before
5635 almost all types were #define'd to ASN1_STRING which was causing
5636 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
5640 *) Change names of new functions to the new get1/get0 naming
5641 convention: After 'get1', the caller owns a reference count
5642 and has to call ..._free; 'get0' returns a pointer to some
5643 data structure without incrementing reference counters.
5644 (Some of the existing 'get' functions increment a reference
5645 counter, some don't.)
5646 Similarly, 'set1' and 'add1' functions increase reference
5647 counters or duplicate objects.
5650 *) Allow for the possibility of temp RSA key generation failure:
5651 the code used to assume it always worked and crashed on failure.
5654 *) Fix potential buffer overrun problem in BIO_printf().
5655 [Ulf Möller, using public domain code by Patrick Powell; problem
5656 pointed out by David Sacerdote <das33@cornell.edu>]
5658 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
5659 RAND_egd() and RAND_status(). In the command line application,
5660 the EGD socket can be specified like a seed file using RANDFILE
5664 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
5665 Some CAs (e.g. Verisign) distribute certificates in this form.
5668 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
5669 list to exclude them. This means that no special compilation option
5670 is needed to use anonymous DH: it just needs to be included in the
5674 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
5675 EVP_MD_type. The old functionality is available in a new macro called
5676 EVP_MD_md(). Change code that uses it and update docs.
5679 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
5680 where the 'void *' argument is replaced by a function pointer argument.
5681 Previously 'void *' was abused to point to functions, which works on
5682 many platforms, but is not correct. As these functions are usually
5683 called by macros defined in OpenSSL header files, most source code
5684 should work without changes.
5687 *) <openssl/opensslconf.h> (which is created by Configure) now contains
5688 sections with information on -D... compiler switches used for
5689 compiling the library so that applications can see them. To enable
5690 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
5691 must be defined. E.g.,
5692 #define OPENSSL_ALGORITHM_DEFINES
5693 #include <openssl/opensslconf.h>
5694 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
5695 [Richard Levitte, Ulf and Bodo Möller]
5697 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
5701 *) Change the 'other' type in certificate aux info to a STACK_OF
5702 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
5703 the required ASN1 format: arbitrary types determined by an OID.
5706 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
5707 argument to 'req'. This is not because the function is newer or
5708 better than others it just uses the work 'NEW' in the certificate
5709 request header lines. Some software needs this.
5712 *) Reorganise password command line arguments: now passwords can be
5713 obtained from various sources. Delete the PEM_cb function and make
5714 it the default behaviour: i.e. if the callback is NULL and the
5715 usrdata argument is not NULL interpret it as a null terminated pass
5716 phrase. If usrdata and the callback are NULL then the pass phrase
5717 is prompted for as usual.
5720 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
5721 the support is automatically enabled. The resulting binaries will
5722 autodetect the card and use it if present.
5723 [Ben Laurie and Compaq Inc.]
5725 *) Work around for Netscape hang bug. This sends certificate request
5726 and server done in one record. Since this is perfectly legal in the
5727 SSL/TLS protocol it isn't a "bug" option and is on by default. See
5728 the bugs/SSLv3 entry for more info.
5731 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
5734 *) Add -rand argument to smime and pkcs12 applications and read/write
5738 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
5741 *) Add command line password options to the remaining applications.
5744 *) Bug fix for BN_div_recp() for numerators with an even number of
5748 *) More tests in bntest.c, and changed test_bn output.
5751 *) ./config recognizes MacOS X now.
5754 *) Bug fix for BN_div() when the first words of num and divsor are
5755 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
5758 *) Add support for various broken PKCS#8 formats, and command line
5759 options to produce them.
5762 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
5763 get temporary BIGNUMs from a BN_CTX.
5766 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
5770 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
5771 include a #define from the old name to the new. The original intent
5772 was that statically linked binaries could for example just call
5773 SSLeay_add_all_ciphers() to just add ciphers to the table and not
5774 link with digests. This never worked becayse SSLeay_add_all_digests()
5775 and SSLeay_add_all_ciphers() were in the same source file so calling
5776 one would link with the other. They are now in separate source files.
5779 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
5782 *) Use a less unusual form of the Miller-Rabin primality test (it used
5783 a binary algorithm for exponentiation integrated into the Miller-Rabin
5784 loop, our standard modexp algorithms are faster).
5787 *) Support for the EBCDIC character set completed.
5788 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
5790 *) Source code cleanups: use const where appropriate, eliminate casts,
5791 use void * instead of char * in lhash.
5794 *) Bugfix: ssl3_send_server_key_exchange was not restartable
5795 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
5796 this the server could overwrite ephemeral keys that the client
5800 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
5801 using 50 iterations of the Rabin-Miller test.
5803 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
5804 iterations of the Rabin-Miller test as required by the appendix
5805 to FIPS PUB 186[-1]) instead of DSA_is_prime.
5806 As BN_is_prime_fasttest includes trial division, DSA parameter
5807 generation becomes much faster.
5809 This implies a change for the callback functions in DSA_is_prime
5810 and DSA_generate_parameters: The callback function is called once
5811 for each positive witness in the Rabin-Miller test, not just
5812 occasionally in the inner loop; and the parameters to the
5813 callback function now provide an iteration count for the outer
5814 loop rather than for the current invocation of the inner loop.
5815 DSA_generate_parameters additionally can call the callback
5816 function with an 'iteration count' of -1, meaning that a
5817 candidate has passed the trial division test (when q is generated
5818 from an application-provided seed, trial division is skipped).
5821 *) New function BN_is_prime_fasttest that optionally does trial
5822 division before starting the Rabin-Miller test and has
5823 an additional BN_CTX * argument (whereas BN_is_prime always
5824 has to allocate at least one BN_CTX).
5825 'callback(1, -1, cb_arg)' is called when a number has passed the
5826 trial division stage.
5829 *) Fix for bug in CRL encoding. The validity dates weren't being handled
5833 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
5836 *) New function BN_pseudo_rand().
5839 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
5840 bignum version of BN_from_montgomery() with the working code from
5841 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
5845 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
5846 made it impossible to use the same SSL_SESSION data structure in
5847 SSL2 clients in multiple threads.
5850 *) The return value of RAND_load_file() no longer counts bytes obtained
5851 by stat(). RAND_load_file(..., -1) is new and uses the complete file
5852 to seed the PRNG (previously an explicit byte count was required).
5853 [Ulf Möller, Bodo Möller]
5855 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
5856 used (char *) instead of (void *) and had casts all over the place.
5859 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
5862 *) Retain source code compatibility for BN_prime_checks macro:
5863 BN_is_prime(..., BN_prime_checks, ...) now uses
5864 BN_prime_checks_for_size to determine the appropriate number of
5865 Rabin-Miller iterations.
5868 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
5869 DH_CHECK_P_NOT_SAFE_PRIME.
5870 (Check if this is true? OpenPGP calls them "strong".)
5873 *) Merge the functionality of "dh" and "gendh" programs into a new program
5874 "dhparam". The old programs are retained for now but will handle DH keys
5875 (instead of parameters) in future.
5878 *) Make the ciphers, s_server and s_client programs check the return values
5879 when a new cipher list is set.
5882 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
5883 ciphers. Before when the 56bit ciphers were enabled the sorting was
5886 The syntax for the cipher sorting has been extended to support sorting by
5887 cipher-strength (using the strength_bits hard coded in the tables).
5888 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
5890 Fix a bug in the cipher-command parser: when supplying a cipher command
5891 string with an "undefined" symbol (neither command nor alphanumeric
5892 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
5893 an error is flagged.
5895 Due to the strength-sorting extension, the code of the
5896 ssl_create_cipher_list() function was completely rearranged. I hope that
5897 the readability was also increased :-)
5898 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5900 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
5901 for the first serial number and places 2 in the serial number file. This
5902 avoids problems when the root CA is created with serial number zero and
5903 the first user certificate has the same issuer name and serial number
5907 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
5908 the new code. Add documentation for this stuff.
5911 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
5912 X509_*() to X509at_*() on the grounds that they don't handle X509
5913 structures and behave in an analagous way to the X509v3 functions:
5914 they shouldn't be called directly but wrapper functions should be used
5917 So we also now have some wrapper functions that call the X509at functions
5918 when passed certificate requests. (TO DO: similar things can be done with
5919 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
5920 things. Some of these need some d2i or i2d and print functionality
5921 because they handle more complex structures.)
5924 *) Add missing #ifndefs that caused missing symbols when building libssl
5925 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
5926 NO_RSA in ssl/s2*.c.
5927 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
5929 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
5930 has a return value which indicates the quality of the random data
5931 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
5932 error queue. New function RAND_pseudo_bytes() generates output that is
5933 guaranteed to be unique but not unpredictable. RAND_add is like
5934 RAND_seed, but takes an extra argument for an entropy estimate
5935 (RAND_seed always assumes full entropy).
5938 *) Do more iterations of Rabin-Miller probable prime test (specifically,
5939 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
5940 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
5941 in crypto/bn/bn_prime.c for the complete table). This guarantees a
5942 false-positive rate of at most 2^-80 for random input.
5945 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
5948 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
5949 in the 0.9.5 release), this returns the chain
5950 from an X509_CTX structure with a dup of the stack and all
5951 the X509 reference counts upped: so the stack will exist
5952 after X509_CTX_cleanup() has been called. Modify pkcs12.c
5955 Also make SSL_SESSION_print() print out the verify return
5959 *) Add manpage for the pkcs12 command. Also change the default
5960 behaviour so MAC iteration counts are used unless the new
5961 -nomaciter option is used. This improves file security and
5962 only older versions of MSIE (4.0 for example) need it.
5965 *) Honor the no-xxx Configure options when creating .DEF files.
5968 *) Add PKCS#10 attributes to field table: challengePassword,
5969 unstructuredName and unstructuredAddress. These are taken from
5970 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
5971 international characters are used.
5973 More changes to X509_ATTRIBUTE code: allow the setting of types
5974 based on strings. Remove the 'loc' parameter when adding
5975 attributes because these will be a SET OF encoding which is sorted
5979 *) Initial changes to the 'req' utility to allow request generation
5980 automation. This will allow an application to just generate a template
5981 file containing all the field values and have req construct the
5984 Initial support for X509_ATTRIBUTE handling. Stacks of these are
5985 used all over the place including certificate requests and PKCS#7
5986 structures. They are currently handled manually where necessary with
5987 some primitive wrappers for PKCS#7. The new functions behave in a
5988 manner analogous to the X509 extension functions: they allow
5989 attributes to be looked up by NID and added.
5991 Later something similar to the X509V3 code would be desirable to
5992 automatically handle the encoding, decoding and printing of the
5993 more complex types. The string types like challengePassword can
5994 be handled by the string table functions.
5996 Also modified the multi byte string table handling. Now there is
5997 a 'global mask' which masks out certain types. The table itself
5998 can use the flag STABLE_NO_MASK to ignore the mask setting: this
5999 is useful when for example there is only one permissible type
6000 (as in countryName) and using the mask might result in no valid
6004 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
6005 SSL_get_peer_finished to allow applications to obtain the latest
6006 Finished messages sent to the peer or expected from the peer,
6007 respectively. (SSL_get_peer_finished is usually the Finished message
6008 actually received from the peer, otherwise the protocol will be aborted.)
6010 As the Finished message are message digests of the complete handshake
6011 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
6012 be used for external authentication procedures when the authentication
6013 provided by SSL/TLS is not desired or is not enough.
6016 *) Enhanced support for Alpha Linux is added. Now ./config checks if
6017 the host supports BWX extension and if Compaq C is present on the
6018 $PATH. Just exploiting of the BWX extension results in 20-30%
6019 performance kick for some algorithms, e.g. DES and RC4 to mention
6020 a couple. Compaq C in turn generates ~20% faster code for MD5 and
6024 *) Add support for MS "fast SGC". This is arguably a violation of the
6025 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
6026 weak crypto and after checking the certificate is SGC a second one
6027 with strong crypto. MS SGC stops the first handshake after receiving
6028 the server certificate message and sends a second client hello. Since
6029 a server will typically do all the time consuming operations before
6030 expecting any further messages from the client (server key exchange
6031 is the most expensive) there is little difference between the two.
6033 To get OpenSSL to support MS SGC we have to permit a second client
6034 hello message after we have sent server done. In addition we have to
6035 reset the MAC if we do get this second client hello.
6038 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
6039 if a DER encoded private key is RSA or DSA traditional format. Changed
6040 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
6041 format DER encoded private key. Newer code should use PKCS#8 format which
6042 has the key type encoded in the ASN1 structure. Added DER private key
6043 support to pkcs8 application.
6046 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
6047 ciphersuites has been selected (as required by the SSL 3/TLS 1
6048 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
6049 is set, we interpret this as a request to violate the specification
6050 (the worst that can happen is a handshake failure, and 'correct'
6051 behaviour would result in a handshake failure anyway).
6054 *) In SSL_CTX_add_session, take into account that there might be multiple
6055 SSL_SESSION structures with the same session ID (e.g. when two threads
6056 concurrently obtain them from an external cache).
6057 The internal cache can handle only one SSL_SESSION with a given ID,
6058 so if there's a conflict, we now throw out the old one to achieve
6062 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
6063 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
6064 some routines that use cipher OIDs: some ciphers do not have OIDs
6065 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
6069 *) Simplify the trust setting structure and code. Now we just have
6070 two sequences of OIDs for trusted and rejected settings. These will
6071 typically have values the same as the extended key usage extension
6072 and any application specific purposes.
6074 The trust checking code now has a default behaviour: it will just
6075 check for an object with the same NID as the passed id. Functions can
6076 be provided to override either the default behaviour or the behaviour
6077 for a given id. SSL client, server and email already have functions
6078 in place for compatibility: they check the NID and also return "trusted"
6079 if the certificate is self signed.
6082 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
6083 traditional format into an EVP_PKEY structure.
6086 *) Add a password callback function PEM_cb() which either prompts for
6087 a password if usr_data is NULL or otherwise assumes it is a null
6088 terminated password. Allow passwords to be passed on command line
6089 environment or config files in a few more utilities.
6092 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
6093 keys. Add some short names for PKCS#8 PBE algorithms and allow them
6094 to be specified on the command line for the pkcs8 and pkcs12 utilities.
6095 Update documentation.
6098 *) Support for ASN1 "NULL" type. This could be handled before by using
6099 ASN1_TYPE but there wasn't any function that would try to read a NULL
6100 and produce an error if it couldn't. For compatibility we also have
6101 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
6102 don't allocate anything because they don't need to.
6105 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
6107 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
6109 *) Rebuild of the memory allocation routines used by OpenSSL code and
6110 possibly others as well. The purpose is to make an interface that
6111 provide hooks so anyone can build a separate set of allocation and
6112 deallocation routines to be used by OpenSSL, for example memory
6113 pool implementations, or something else, which was previously hard
6114 since Malloc(), Realloc() and Free() were defined as macros having
6115 the values malloc, realloc and free, respectively (except for Win32
6116 compilations). The same is provided for memory debugging code.
6117 OpenSSL already comes with functionality to find memory leaks, but
6118 this gives people a chance to debug other memory problems.
6120 With these changes, a new set of functions and macros have appeared:
6122 CRYPTO_set_mem_debug_functions() [F]
6123 CRYPTO_get_mem_debug_functions() [F]
6124 CRYPTO_dbg_set_options() [F]
6125 CRYPTO_dbg_get_options() [F]
6126 CRYPTO_malloc_debug_init() [M]
6128 The memory debug functions are NULL by default, unless the library
6129 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
6130 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
6131 gives the standard debugging functions that come with OpenSSL) or
6132 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
6133 provided by the library user) must be used. When the standard
6134 debugging functions are used, CRYPTO_dbg_set_options can be used to
6135 request additional information:
6136 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
6137 the CRYPTO_MDEBUG_xxx macro when compiling the library.
6139 Also, things like CRYPTO_set_mem_functions will always give the
6140 expected result (the new set of functions is used for allocation
6141 and deallocation) at all times, regardless of platform and compiler
6144 To finish it up, some functions that were never use in any other
6145 way than through macros have a new API and new semantic:
6148 CRYPTO_dbg_realloc()
6151 All macros of value have retained their old syntax.
6152 [Richard Levitte and Bodo Moeller]
6154 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
6155 ordering of SMIMECapabilities wasn't in "strength order" and there
6156 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
6160 *) Some ASN1 types with illegal zero length encoding (INTEGER,
6161 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
6162 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
6164 *) Merge in my S/MIME library for OpenSSL. This provides a simple
6165 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
6166 functionality to handle multipart/signed properly) and a utility
6167 called 'smime' to call all this stuff. This is based on code I
6168 originally wrote for Celo who have kindly allowed it to be
6169 included in OpenSSL.
6172 *) Add variants des_set_key_checked and des_set_key_unchecked of
6173 des_set_key (aka des_key_sched). Global variable des_check_key
6174 decides which of these is called by des_set_key; this way
6175 des_check_key behaves as it always did, but applications and
6176 the library itself, which was buggy for des_check_key == 1,
6177 have a cleaner way to pick the version they need.
6180 *) New function PKCS12_newpass() which changes the password of a
6184 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
6185 dynamic mix. In both cases the ids can be used as an index into the
6186 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
6187 functions so they accept a list of the field values and the
6188 application doesn't need to directly manipulate the X509_TRUST
6192 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
6196 *) Modify the way the V3 extension code looks up extensions. This now
6197 works in a similar way to the object code: we have some "standard"
6198 extensions in a static table which is searched with OBJ_bsearch()
6199 and the application can add dynamic ones if needed. The file
6200 crypto/x509v3/ext_dat.h now has the info: this file needs to be
6201 updated whenever a new extension is added to the core code and kept
6202 in ext_nid order. There is a simple program 'tabtest.c' which checks
6203 this. New extensions are not added too often so this file can readily
6204 be maintained manually.
6206 There are two big advantages in doing things this way. The extensions
6207 can be looked up immediately and no longer need to be "added" using
6208 X509V3_add_standard_extensions(): this function now does nothing.
6209 [Side note: I get *lots* of email saying the extension code doesn't
6210 work because people forget to call this function]
6211 Also no dynamic allocation is done unless new extensions are added:
6212 so if we don't add custom extensions there is no need to call
6213 X509V3_EXT_cleanup().
6216 *) Modify enc utility's salting as follows: make salting the default. Add a
6217 magic header, so unsalted files fail gracefully instead of just decrypting
6218 to garbage. This is because not salting is a big security hole, so people
6219 should be discouraged from doing it.
6222 *) Fixes and enhancements to the 'x509' utility. It allowed a message
6223 digest to be passed on the command line but it only used this
6224 parameter when signing a certificate. Modified so all relevant
6225 operations are affected by the digest parameter including the
6226 -fingerprint and -x509toreq options. Also -x509toreq choked if a
6227 DSA key was used because it didn't fix the digest.
6230 *) Initial certificate chain verify code. Currently tests the untrusted
6231 certificates for consistency with the verify purpose (which is set
6232 when the X509_STORE_CTX structure is set up) and checks the pathlength.
6234 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
6235 this is because it will reject chains with invalid extensions whereas
6236 every previous version of OpenSSL and SSLeay made no checks at all.
6238 Trust code: checks the root CA for the relevant trust settings. Trust
6239 settings have an initial value consistent with the verify purpose: e.g.
6240 if the verify purpose is for SSL client use it expects the CA to be
6241 trusted for SSL client use. However the default value can be changed to
6242 permit custom trust settings: one example of this would be to only trust
6243 certificates from a specific "secure" set of CAs.
6245 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
6246 which should be used for version portability: especially since the
6247 verify structure is likely to change more often now.
6249 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
6250 to set them. If not set then assume SSL clients will verify SSL servers
6253 Two new options to the verify program: -untrusted allows a set of
6254 untrusted certificates to be passed in and -purpose which sets the
6255 intended purpose of the certificate. If a purpose is set then the
6256 new chain verify code is used to check extension consistency.
6259 *) Support for the authority information access extension.
6262 *) Modify RSA and DSA PEM read routines to transparently handle
6263 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
6264 public keys in a format compatible with certificate
6265 SubjectPublicKeyInfo structures. Unfortunately there were already
6266 functions called *_PublicKey_* which used various odd formats so
6267 these are retained for compatibility: however the DSA variants were
6268 never in a public release so they have been deleted. Changed dsa/rsa
6269 utilities to handle the new format: note no releases ever handled public
6270 keys so we should be OK.
6272 The primary motivation for this change is to avoid the same fiasco
6273 that dogs private keys: there are several incompatible private key
6274 formats some of which are standard and some OpenSSL specific and
6275 require various evil hacks to allow partial transparent handling and
6276 even then it doesn't work with DER formats. Given the option anything
6277 other than PKCS#8 should be dumped: but the other formats have to
6278 stay in the name of compatibility.
6280 With public keys and the benefit of hindsight one standard format
6281 is used which works with EVP_PKEY, RSA or DSA structures: though
6282 it clearly returns an error if you try to read the wrong kind of key.
6284 Added a -pubkey option to the 'x509' utility to output the public key.
6285 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
6286 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
6287 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
6288 that do the same as the EVP_PKEY_assign_*() except they up the
6289 reference count of the added key (they don't "swallow" the
6293 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
6294 CRLs would fail if the file contained no certificates or no CRLs:
6295 added a new function to read in both types and return the number
6296 read: this means that if none are read it will be an error. The
6297 DER versions of the certificate and CRL reader would always fail
6298 because it isn't possible to mix certificates and CRLs in DER format
6299 without choking one or the other routine. Changed this to just read
6300 a certificate: this is the best we can do. Also modified the code
6301 in apps/verify.c to take notice of return codes: it was previously
6302 attempting to read in certificates from NULL pointers and ignoring
6303 any errors: this is one reason why the cert and CRL reader seemed
6304 to work. It doesn't check return codes from the default certificate
6305 routines: these may well fail if the certificates aren't installed.
6308 *) Code to support otherName option in GeneralName.
6311 *) First update to verify code. Change the verify utility
6312 so it warns if it is passed a self signed certificate:
6313 for consistency with the normal behaviour. X509_verify
6314 has been modified to it will now verify a self signed
6315 certificate if *exactly* the same certificate appears
6316 in the store: it was previously impossible to trust a
6317 single self signed certificate. This means that:
6318 openssl verify ss.pem
6319 now gives a warning about a self signed certificate but
6320 openssl verify -CAfile ss.pem ss.pem
6324 *) For servers, store verify_result in SSL_SESSION data structure
6325 (and add it to external session representation).
6326 This is needed when client certificate verifications fails,
6327 but an application-provided verification callback (set by
6328 SSL_CTX_set_cert_verify_callback) allows accepting the session
6329 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
6330 but returns 1): When the session is reused, we have to set
6331 ssl->verify_result to the appropriate error code to avoid
6333 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
6335 *) Fix a bug in the new PKCS#7 code: it didn't consider the
6336 case in PKCS7_dataInit() where the signed PKCS7 structure
6337 didn't contain any existing data because it was being created.
6338 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
6340 *) Add a salt to the key derivation routines in enc.c. This
6341 forms the first 8 bytes of the encrypted file. Also add a
6342 -S option to allow a salt to be input on the command line.
6345 *) New function X509_cmp(). Oddly enough there wasn't a function
6346 to compare two certificates. We do this by working out the SHA1
6347 hash and comparing that. X509_cmp() will be needed by the trust
6351 *) SSL_get1_session() is like SSL_get_session(), but increments
6352 the reference count in the SSL_SESSION returned.
6353 [Geoff Thorpe <geoff@eu.c2.net>]
6355 *) Fix for 'req': it was adding a null to request attributes.
6356 Also change the X509_LOOKUP and X509_INFO code to handle
6357 certificate auxiliary information.
6360 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
6364 *) Add the possibility to add extra information to the memory leak
6365 detecting output, to form tracebacks, showing from where each
6366 allocation was originated: CRYPTO_push_info("constant string") adds
6367 the string plus current file name and line number to a per-thread
6368 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
6369 is like calling CYRPTO_pop_info() until the stack is empty.
6370 Also updated memory leak detection code to be multi-thread-safe.
6373 *) Add options -text and -noout to pkcs7 utility and delete the
6374 encryption options which never did anything. Update docs.
6377 *) Add options to some of the utilities to allow the pass phrase
6378 to be included on either the command line (not recommended on
6379 OSes like Unix) or read from the environment. Update the
6380 manpages and fix a few bugs.
6383 *) Add a few manpages for some of the openssl commands.
6386 *) Fix the -revoke option in ca. It was freeing up memory twice,
6387 leaking and not finding already revoked certificates.
6390 *) Extensive changes to support certificate auxiliary information.
6391 This involves the use of X509_CERT_AUX structure and X509_AUX
6392 functions. An X509_AUX function such as PEM_read_X509_AUX()
6393 can still read in a certificate file in the usual way but it
6394 will also read in any additional "auxiliary information". By
6395 doing things this way a fair degree of compatibility can be
6396 retained: existing certificates can have this information added
6397 using the new 'x509' options.
6399 Current auxiliary information includes an "alias" and some trust
6400 settings. The trust settings will ultimately be used in enhanced
6401 certificate chain verification routines: currently a certificate
6402 can only be trusted if it is self signed and then it is trusted
6406 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
6407 The problem was that one of the replacement routines had not been working
6408 since SSLeay releases. For now the offending routine has been replaced
6409 with non-optimised assembler. Even so, this now gives around 95%
6410 performance improvement for 1024 bit RSA signs.
6413 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
6414 handling. Most clients have the effective key size in bits equal to
6415 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
6416 A few however don't do this and instead use the size of the decrypted key
6417 to determine the RC2 key length and the AlgorithmIdentifier to determine
6418 the effective key length. In this case the effective key length can still
6419 be 40 bits but the key length can be 168 bits for example. This is fixed
6420 by manually forcing an RC2 key into the EVP_PKEY structure because the
6421 EVP code can't currently handle unusual RC2 key sizes: it always assumes
6422 the key length and effective key length are equal.
6425 *) Add a bunch of functions that should simplify the creation of
6426 X509_NAME structures. Now you should be able to do:
6427 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
6428 and have it automatically work out the correct field type and fill in
6429 the structures. The more adventurous can try:
6430 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
6431 and it will (hopefully) work out the correct multibyte encoding.
6434 *) Change the 'req' utility to use the new field handling and multibyte
6435 copy routines. Before the DN field creation was handled in an ad hoc
6436 way in req, ca, and x509 which was rather broken and didn't support
6437 BMPStrings or UTF8Strings. Since some software doesn't implement
6438 BMPStrings or UTF8Strings yet, they can be enabled using the config file
6439 using the dirstring_type option. See the new comment in the default
6440 openssl.cnf for more info.
6443 *) Make crypto/rand/md_rand.c more robust:
6444 - Assure unique random numbers after fork().
6445 - Make sure that concurrent threads access the global counter and
6446 md serializably so that we never lose entropy in them
6447 or use exactly the same state in multiple threads.
6448 Access to the large state is not always serializable because
6449 the additional locking could be a performance killer, and
6450 md should be large enough anyway.
6453 *) New file apps/app_rand.c with commonly needed functionality
6454 for handling the random seed file.
6456 Use the random seed file in some applications that previously did not:
6458 dsaparam -genkey (which also ignored its '-rand' option),
6461 x509 (when signing).
6462 Except on systems with /dev/urandom, it is crucial to have a random
6463 seed file at least for key creation, DSA signing, and for DH exchanges;
6464 for RSA signatures we could do without one.
6466 gendh and gendsa (unlike genrsa) used to read only the first byte
6467 of each file listed in the '-rand' option. The function as previously
6468 found in genrsa is now in app_rand.c and is used by all programs
6469 that support '-rand'.
6472 *) In RAND_write_file, use mode 0600 for creating files;
6473 don't just chmod when it may be too late.
6476 *) Report an error from X509_STORE_load_locations
6477 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
6480 *) New function ASN1_mbstring_copy() this copies a string in either
6481 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
6482 into an ASN1_STRING type. A mask of permissible types is passed
6483 and it chooses the "minimal" type to use or an error if not type
6487 *) Add function equivalents to the various macros in asn1.h. The old
6488 macros are retained with an M_ prefix. Code inside the library can
6489 use the M_ macros. External code (including the openssl utility)
6490 should *NOT* in order to be "shared library friendly".
6493 *) Add various functions that can check a certificate's extensions
6494 to see if it usable for various purposes such as SSL client,
6495 server or S/MIME and CAs of these types. This is currently
6496 VERY EXPERIMENTAL but will ultimately be used for certificate chain
6497 verification. Also added a -purpose flag to x509 utility to
6498 print out all the purposes.
6501 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
6505 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
6506 for, obtain and decode and extension and obtain its critical flag.
6507 This allows all the necessary extension code to be handled in a
6508 single function call.
6511 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
6512 platforms. See crypto/rc4/rc4_enc.c for further details.
6515 *) New -noout option to asn1parse. This causes no output to be produced
6516 its main use is when combined with -strparse and -out to extract data
6517 from a file (which may not be in ASN.1 format).
6520 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
6521 when producing the local key id.
6522 [Richard Levitte <levitte@stacken.kth.se>]
6524 *) New option -dhparam in s_server. This allows a DH parameter file to be
6525 stated explicitly. If it is not stated then it tries the first server
6526 certificate file. The previous behaviour hard coded the filename
6530 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
6531 a public key to be input or output. For example:
6532 openssl rsa -in key.pem -pubout -out pubkey.pem
6533 Also added necessary DSA public key functions to handle this.
6536 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
6537 in the message. This was handled by allowing
6538 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
6539 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
6541 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
6542 to the end of the strings whereas this didn't. This would cause problems
6543 if strings read with d2i_ASN1_bytes() were later modified.
6544 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
6546 *) Fix for base64 decode bug. When a base64 bio reads only one line of
6547 data and it contains EOF it will end up returning an error. This is
6548 caused by input 46 bytes long. The cause is due to the way base64
6549 BIOs find the start of base64 encoded data. They do this by trying a
6550 trial decode on each line until they find one that works. When they
6551 do a flag is set and it starts again knowing it can pass all the
6552 data directly through the decoder. Unfortunately it doesn't reset
6553 the context it uses. This means that if EOF is reached an attempt
6554 is made to pass two EOFs through the context and this causes the
6555 resulting error. This can also cause other problems as well. As is
6556 usual with these problems it takes *ages* to find and the fix is
6557 trivial: move one line.
6558 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
6560 *) Ugly workaround to get s_client and s_server working under Windows. The
6561 old code wouldn't work because it needed to select() on sockets and the
6562 tty (for keypresses and to see if data could be written). Win32 only
6563 supports select() on sockets so we select() with a 1s timeout on the
6564 sockets and then see if any characters are waiting to be read, if none
6565 are present then we retry, we also assume we can always write data to
6566 the tty. This isn't nice because the code then blocks until we've
6567 received a complete line of data and it is effectively polling the
6568 keyboard at 1s intervals: however it's quite a bit better than not
6569 working at all :-) A dedicated Windows application might handle this
6570 with an event loop for example.
6573 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
6574 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
6575 will be called when RSA_sign() and RSA_verify() are used. This is useful
6576 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
6577 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
6578 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
6579 This necessitated the support of an extra signature type NID_md5_sha1
6580 for SSL signatures and modifications to the SSL library to use it instead
6581 of calling RSA_public_decrypt() and RSA_private_encrypt().
6584 *) Add new -verify -CAfile and -CApath options to the crl program, these
6585 will lookup a CRL issuers certificate and verify the signature in a
6586 similar way to the verify program. Tidy up the crl program so it
6587 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
6588 less strict. It will now permit CRL extensions even if it is not
6589 a V2 CRL: this will allow it to tolerate some broken CRLs.
6592 *) Initialize all non-automatic variables each time one of the openssl
6593 sub-programs is started (this is necessary as they may be started
6594 multiple times from the "OpenSSL>" prompt).
6595 [Lennart Bang, Bodo Moeller]
6597 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
6598 removing all other RSA functionality (this is what NO_RSA does). This
6599 is so (for example) those in the US can disable those operations covered
6600 by the RSA patent while allowing storage and parsing of RSA keys and RSA
6604 *) Non-copying interface to BIO pairs.
6605 (still largely untested)
6608 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
6609 ASCII string. This was handled independently in various places before.
6612 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
6613 UTF8 strings a character at a time.
6616 *) Use client_version from client hello to select the protocol
6617 (s23_srvr.c) and for RSA client key exchange verification
6618 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
6621 *) Add various utility functions to handle SPKACs, these were previously
6622 handled by poking round in the structure internals. Added new function
6623 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
6624 print, verify and generate SPKACs. Based on an original idea from
6625 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
6628 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
6631 *) Allow the config file extension section to be overwritten on the
6632 command line. Based on an original idea from Massimiliano Pala
6633 <madwolf@comune.modena.it>. The new option is called -extensions
6634 and can be applied to ca, req and x509. Also -reqexts to override
6635 the request extensions in req and -crlexts to override the crl extensions
6639 *) Add new feature to the SPKAC handling in ca. Now you can include
6640 the same field multiple times by preceding it by "XXXX." for example:
6643 this is the same syntax as used in the req config file.
6646 *) Allow certificate extensions to be added to certificate requests. These
6647 are specified in a 'req_extensions' option of the req section of the
6648 config file. They can be printed out with the -text option to req but
6649 are otherwise ignored at present.
6652 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
6653 data read consists of only the final block it would not decrypted because
6654 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
6655 A misplaced 'break' also meant the decrypted final block might not be
6656 copied until the next read.
6659 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
6660 a few extra parameters to the DH structure: these will be useful if
6661 for example we want the value of 'q' or implement X9.42 DH.
6664 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
6665 provides hooks that allow the default DSA functions or functions on a
6666 "per key" basis to be replaced. This allows hardware acceleration and
6667 hardware key storage to be handled without major modification to the
6668 library. Also added low level modexp hooks and CRYPTO_EX structure and
6669 associated functions.
6672 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
6673 as "read only": it can't be written to and the buffer it points to will
6674 not be freed. Reading from a read only BIO is much more efficient than
6675 a normal memory BIO. This was added because there are several times when
6676 an area of memory needs to be read from a BIO. The previous method was
6677 to create a memory BIO and write the data to it, this results in two
6678 copies of the data and an O(n^2) reading algorithm. There is a new
6679 function BIO_new_mem_buf() which creates a read only memory BIO from
6680 an area of memory. Also modified the PKCS#7 routines to use read only
6684 *) Bugfix: ssl23_get_client_hello did not work properly when called in
6685 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
6686 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
6687 but a retry condition occured while trying to read the rest.
6690 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
6691 NID_pkcs7_encrypted by default: this was wrong since this should almost
6692 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
6693 the encrypted data type: this is a more sensible place to put it and it
6694 allows the PKCS#12 code to be tidied up that duplicated this
6698 *) Changed obj_dat.pl script so it takes its input and output files on
6699 the command line. This should avoid shell escape redirection problems
6703 *) Initial support for certificate extension requests, these are included
6704 in things like Xenroll certificate requests. Included functions to allow
6705 extensions to be obtained and added.
6708 *) -crlf option to s_client and s_server for sending newlines as
6709 CRLF (as required by many protocols).
6712 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
6714 *) Install libRSAglue.a when OpenSSL is built with RSAref.
6715 [Ralf S. Engelschall]
6717 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
6718 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
6720 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
6724 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
6725 DH parameters/keys (q is lost during that conversion, but the resulting
6726 DH parameters contain its length).
6728 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
6729 much faster than DH_generate_parameters (which creates parameters
6730 where p = 2*q + 1), and also the smaller q makes DH computations
6731 much more efficient (160-bit exponentiation instead of 1024-bit
6732 exponentiation); so this provides a convenient way to support DHE
6733 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
6734 utter importance to use
6735 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6737 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6738 when such DH parameters are used, because otherwise small subgroup
6739 attacks may become possible!
6742 *) Avoid memory leak in i2d_DHparams.
6745 *) Allow the -k option to be used more than once in the enc program:
6746 this allows the same encrypted message to be read by multiple recipients.
6749 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
6750 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
6751 it will always use the numerical form of the OID, even if it has a short
6755 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
6756 method only got called if p,q,dmp1,dmq1,iqmp components were present,
6757 otherwise bn_mod_exp was called. In the case of hardware keys for example
6758 no private key components need be present and it might store extra data
6759 in the RSA structure, which cannot be accessed from bn_mod_exp.
6760 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
6761 private key operations.
6764 *) Added support for SPARC Linux.
6767 *) pem_password_cb function type incompatibly changed from
6768 typedef int pem_password_cb(char *buf, int size, int rwflag);
6770 ....(char *buf, int size, int rwflag, void *userdata);
6771 so that applications can pass data to their callbacks:
6772 The PEM[_ASN1]_{read,write}... functions and macros now take an
6773 additional void * argument, which is just handed through whenever
6774 the password callback is called.
6775 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
6777 New function SSL_CTX_set_default_passwd_cb_userdata.
6779 Compatibility note: As many C implementations push function arguments
6780 onto the stack in reverse order, the new library version is likely to
6781 interoperate with programs that have been compiled with the old
6782 pem_password_cb definition (PEM_whatever takes some data that
6783 happens to be on the stack as its last argument, and the callback
6784 just ignores this garbage); but there is no guarantee whatsoever that
6787 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
6788 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
6789 problems not only on Windows, but also on some Unix platforms.
6790 To avoid problematic command lines, these definitions are now in an
6791 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
6792 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
6795 *) MIPS III/IV assembler module is reimplemented.
6798 *) More DES library cleanups: remove references to srand/rand and
6799 delete an unused file.
6802 *) Add support for the the free Netwide assembler (NASM) under Win32,
6803 since not many people have MASM (ml) and it can be hard to obtain.
6804 This is currently experimental but it seems to work OK and pass all
6805 the tests. Check out INSTALL.W32 for info.
6808 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
6809 without temporary keys kept an extra copy of the server key,
6810 and connections with temporary keys did not free everything in case
6814 *) New function RSA_check_key and new openssl rsa option -check
6815 for verifying the consistency of RSA keys.
6816 [Ulf Moeller, Bodo Moeller]
6818 *) Various changes to make Win32 compile work:
6819 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
6820 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
6821 comparison" warnings.
6822 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
6825 *) Add a debugging option to PKCS#5 v2 key generation function: when
6826 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
6827 derived keys are printed to stderr.
6830 *) Copy the flags in ASN1_STRING_dup().
6831 [Roman E. Pavlov <pre@mo.msk.ru>]
6833 *) The x509 application mishandled signing requests containing DSA
6834 keys when the signing key was also DSA and the parameters didn't match.
6836 It was supposed to omit the parameters when they matched the signing key:
6837 the verifying software was then supposed to automatically use the CA's
6838 parameters if they were absent from the end user certificate.
6840 Omitting parameters is no longer recommended. The test was also
6841 the wrong way round! This was probably due to unusual behaviour in
6842 EVP_cmp_parameters() which returns 1 if the parameters match.
6843 This meant that parameters were omitted when they *didn't* match and
6844 the certificate was useless. Certificates signed with 'ca' didn't have
6846 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
6848 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
6849 The interface is as follows:
6850 Applications can use
6851 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
6852 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
6853 "off" is now the default.
6854 The library internally uses
6855 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
6856 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
6857 to disable memory-checking temporarily.
6859 Some inconsistent states that previously were possible (and were
6860 even the default) are now avoided.
6862 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
6863 with each memory chunk allocated; this is occasionally more helpful
6864 than just having a counter.
6866 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
6868 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
6872 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
6873 which largely parallels "options", but is for changing API behaviour,
6874 whereas "options" are about protocol behaviour.
6875 Initial "mode" flags are:
6877 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
6878 a single record has been written.
6879 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
6880 retries use the same buffer location.
6881 (But all of the contents must be
6885 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
6888 *) Fix problems with no-hmac etc.
6889 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
6891 *) New functions RSA_get_default_method(), RSA_set_method() and
6892 RSA_get_method(). These allows replacement of RSA_METHODs without having
6893 to mess around with the internals of an RSA structure.
6896 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
6897 Also really enable memory leak checks in openssl.c and in some
6899 [Chad C. Mulligan, Bodo Moeller]
6901 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
6902 up the length of negative integers. This has now been simplified to just
6903 store the length when it is first determined and use it later, rather
6904 than trying to keep track of where data is copied and updating it to
6906 [Steve Henson, reported by Brien Wheeler
6907 <bwheeler@authentica-security.com>]
6909 *) Add a new function PKCS7_signatureVerify. This allows the verification
6910 of a PKCS#7 signature but with the signing certificate passed to the
6911 function itself. This contrasts with PKCS7_dataVerify which assumes the
6912 certificate is present in the PKCS#7 structure. This isn't always the
6913 case: certificates can be omitted from a PKCS#7 structure and be
6914 distributed by "out of band" means (such as a certificate database).
6917 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
6918 function prototypes in pem.h, also change util/mkdef.pl to add the
6919 necessary function names.
6922 *) mk1mf.pl (used by Windows builds) did not properly read the
6923 options set by Configure in the top level Makefile, and Configure
6924 was not even able to write more than one option correctly.
6925 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
6928 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
6929 file to be loaded from a BIO or FILE pointer. The BIO version will
6930 for example allow memory BIOs to contain config info.
6933 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
6934 Whoever hopes to achieve shared-library compatibility across versions
6935 must use this, not the compile-time macro.
6936 (Exercise 0.9.4: Which is the minimum library version required by
6938 Note: All this applies only to multi-threaded programs, others don't
6942 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
6943 through a BIO pair triggered the default case, i.e.
6944 SSLerr(...,SSL_R_UNKNOWN_STATE).
6947 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
6948 can use the SSL library even if none of the specific BIOs is
6952 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
6953 for the encoded length.
6954 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
6956 *) Add initial documentation of the X509V3 functions.
6959 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
6960 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
6961 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
6962 secure PKCS#8 private key format with a high iteration count.
6965 *) Fix determination of Perl interpreter: A perl or perl5
6966 _directory_ in $PATH was also accepted as the interpreter.
6967 [Ralf S. Engelschall]
6969 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
6970 wrong with it but it was very old and did things like calling
6971 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
6975 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
6976 to use the new extension code.
6979 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
6980 with macros. This should make it easier to change their form, add extra
6981 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
6985 *) Add to configuration table a new entry that can specify an alternative
6986 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
6987 according to Mark Crispin <MRC@Panda.COM>.
6991 *) DES CBC did not update the IV. Weird.
6994 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
6995 Changing the behaviour of the former might break existing programs --
6996 where IV updating is needed, des_ncbc_encrypt can be used.
6999 *) When bntest is run from "make test" it drives bc to check its
7000 calculations, as well as internally checking them. If an internal check
7001 fails, it needs to cause bc to give a non-zero result or make test carries
7002 on without noticing the failure. Fixed.
7005 *) DES library cleanups.
7008 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
7009 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
7010 ciphers. NOTE: although the key derivation function has been verified
7011 against some published test vectors it has not been extensively tested
7012 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
7016 *) Instead of "mkdir -p", which is not fully portable, use new
7017 Perl script "util/mkdir-p.pl".
7020 *) Rewrite the way password based encryption (PBE) is handled. It used to
7021 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
7022 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
7023 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
7024 the 'parameter' field of the AlgorithmIdentifier is passed to the
7025 underlying key generation function so it must do its own ASN1 parsing.
7026 This has also changed the EVP_PBE_CipherInit() function which now has a
7027 'parameter' argument instead of literal salt and iteration count values
7028 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
7031 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
7032 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
7033 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
7034 KEY" because this clashed with PKCS#8 unencrypted string. Since this
7035 value was just used as a "magic string" and not used directly its
7036 value doesn't matter.
7039 *) Introduce some semblance of const correctness to BN. Shame C doesn't
7043 *) "linux-sparc64" configuration (ultrapenguin).
7044 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
7045 "linux-sparc" configuration.
7046 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
7048 *) config now generates no-xxx options for missing ciphers.
7051 *) Support the EBCDIC character set (work in progress).
7052 File ebcdic.c not yet included because it has a different license.
7053 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7055 *) Support BS2000/OSD-POSIX.
7056 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7058 *) Make callbacks for key generation use void * instead of char *.
7061 *) Make S/MIME samples compile (not yet tested).
7064 *) Additional typesafe stacks.
7067 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
7071 Changes between 0.9.3 and 0.9.3a [29 May 1999]
7073 *) New configuration variant "sco5-gcc".
7075 *) Updated some demos.
7076 [Sean O Riordain, Wade Scholine]
7078 *) Add missing BIO_free at exit of pkcs12 application.
7081 *) Fix memory leak in conf.c.
7084 *) Updates for Win32 to assembler version of MD5.
7087 *) Set #! path to perl in apps/der_chop to where we found it
7088 instead of using a fixed path.
7091 *) SHA library changes for irix64-mips4-cc.
7094 *) Improvements for VMS support.
7098 Changes between 0.9.2b and 0.9.3 [24 May 1999]
7100 *) Bignum library bug fix. IRIX 6 passes "make test" now!
7101 This also avoids the problems with SC4.2 and unpatched SC5.
7102 [Andy Polyakov <appro@fy.chalmers.se>]
7104 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
7105 These are required because of the typesafe stack would otherwise break
7106 existing code. If old code used a structure member which used to be STACK
7107 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
7108 sk_num or sk_value it would produce an error because the num, data members
7109 are not present in STACK_OF. Now it just produces a warning. sk_set
7110 replaces the old method of assigning a value to sk_value
7111 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
7112 that does this will no longer work (and should use sk_set instead) but
7113 this could be regarded as a "questionable" behaviour anyway.
7116 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
7117 correctly handle encrypted S/MIME data.
7120 *) Change type of various DES function arguments from des_cblock
7121 (which means, in function argument declarations, pointer to char)
7122 to des_cblock * (meaning pointer to array with 8 char elements),
7123 which allows the compiler to do more typechecking; it was like
7124 that back in SSLeay, but with lots of ugly casts.
7126 Introduce new type const_des_cblock.
7129 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
7130 problems: find RecipientInfo structure that matches recipient certificate
7131 and initialise the ASN1 structures properly based on passed cipher.
7134 *) Belatedly make the BN tests actually check the results.
7137 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
7138 to and from BNs: it was completely broken. New compilation option
7139 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
7140 key elements as negative integers.
7143 *) Reorganize and speed up MD5.
7144 [Andy Polyakov <appro@fy.chalmers.se>]
7147 [Richard Levitte <richard@levitte.org>]
7149 *) New option -out to asn1parse to allow the parsed structure to be
7150 output to a file. This is most useful when combined with the -strparse
7151 option to examine the output of things like OCTET STRINGS.
7154 *) Make SSL library a little more fool-proof by not requiring any longer
7155 that SSL_set_{accept,connect}_state be called before
7156 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
7157 in many applications because usually everything *appeared* to work as
7158 intended anyway -- now it really works as intended).
7161 *) Move openssl.cnf out of lib/.
7164 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
7165 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
7166 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
7167 [Ralf S. Engelschall]
7169 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
7170 handle PKCS#7 enveloped data properly.
7171 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
7173 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
7174 copying pointers. The cert_st handling is changed by this in
7175 various ways (and thus what used to be known as ctx->default_cert
7176 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
7177 any longer when s->cert does not give us what we need).
7178 ssl_cert_instantiate becomes obsolete by this change.
7179 As soon as we've got the new code right (possibly it already is?),
7180 we have solved a couple of bugs of the earlier code where s->cert
7181 was used as if it could not have been shared with other SSL structures.
7183 Note that using the SSL API in certain dirty ways now will result
7184 in different behaviour than observed with earlier library versions:
7185 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
7186 does not influence s as it used to.
7188 In order to clean up things more thoroughly, inside SSL_SESSION
7189 we don't use CERT any longer, but a new structure SESS_CERT
7190 that holds per-session data (if available); currently, this is
7191 the peer's certificate chain and, for clients, the server's certificate
7192 and temporary key. CERT holds only those values that can have
7193 meaningful defaults in an SSL_CTX.
7196 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
7197 from the internal representation. Various PKCS#7 fixes: remove some
7198 evil casts and set the enc_dig_alg field properly based on the signing
7202 *) Allow PKCS#12 password to be set from the command line or the
7203 environment. Let 'ca' get its config file name from the environment
7204 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
7208 *) Allow certificate policies extension to use an IA5STRING for the
7209 organization field. This is contrary to the PKIX definition but
7210 VeriSign uses it and IE5 only recognises this form. Document 'x509'
7214 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
7215 without disallowing inline assembler and the like for non-pedantic builds.
7218 *) Support Borland C++ builder.
7219 [Janez Jere <jj@void.si>, modified by Ulf Möller]
7224 *) SHA-1 cleanups and performance enhancements.
7225 [Andy Polyakov <appro@fy.chalmers.se>]
7227 *) Sparc v8plus assembler for the bignum library.
7228 [Andy Polyakov <appro@fy.chalmers.se>]
7230 *) Accept any -xxx and +xxx compiler options in Configure.
7233 *) Update HPUX configuration.
7236 *) Add missing sk_<type>_unshift() function to safestack.h
7237 [Ralf S. Engelschall]
7239 *) New function SSL_CTX_use_certificate_chain_file that sets the
7240 "extra_cert"s in addition to the certificate. (This makes sense
7241 only for "PEM" format files, as chains as a whole are not
7245 *) Support verify_depth from the SSL API.
7246 x509_vfy.c had what can be considered an off-by-one-error:
7247 Its depth (which was not part of the external interface)
7248 was actually counting the number of certificates in a chain;
7249 now it really counts the depth.
7252 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
7253 instead of X509err, which often resulted in confusing error
7254 messages since the error codes are not globally unique
7255 (e.g. an alleged error in ssl3_accept when a certificate
7256 didn't match the private key).
7258 *) New function SSL_CTX_set_session_id_context that allows to set a default
7259 value (so that you don't need SSL_set_session_id_context for each
7260 connection using the SSL_CTX).
7263 *) OAEP decoding bug fix.
7266 *) Support INSTALL_PREFIX for package builders, as proposed by
7270 *) New Configure options "threads" and "no-threads". For systems
7271 where the proper compiler options are known (currently Solaris
7272 and Linux), "threads" is the default.
7275 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
7278 *) Install various scripts to $(OPENSSLDIR)/misc, not to
7279 $(INSTALLTOP)/bin -- they shouldn't clutter directories
7280 such as /usr/local/bin.
7283 *) "make linux-shared" to build shared libraries.
7284 [Niels Poppe <niels@netbox.org>]
7286 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
7289 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
7290 extension adding in x509 utility.
7293 *) Remove NOPROTO sections and error code comments.
7296 *) Partial rewrite of the DEF file generator to now parse the ANSI
7300 *) New Configure options --prefix=DIR and --openssldir=DIR.
7303 *) Complete rewrite of the error code script(s). It is all now handled
7304 by one script at the top level which handles error code gathering,
7305 header rewriting and C source file generation. It should be much better
7306 than the old method: it now uses a modified version of Ulf's parser to
7307 read the ANSI prototypes in all header files (thus the old K&R definitions
7308 aren't needed for error creation any more) and do a better job of
7309 translating function codes into names. The old 'ASN1 error code imbedded
7310 in a comment' is no longer necessary and it doesn't use .err files which
7311 have now been deleted. Also the error code call doesn't have to appear all
7312 on one line (which resulted in some large lines...).
7315 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
7318 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
7319 0 (which usually indicates a closed connection), but continue reading.
7322 *) Fix some race conditions.
7325 *) Add support for CRL distribution points extension. Add Certificate
7326 Policies and CRL distribution points documentation.
7329 *) Move the autogenerated header file parts to crypto/opensslconf.h.
7332 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
7333 8 of keying material. Merlin has also confirmed interop with this fix
7334 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
7335 [Merlin Hughes <merlin@baltimore.ie>]
7337 *) Fix lots of warnings.
7338 [Richard Levitte <levitte@stacken.kth.se>]
7340 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
7341 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
7342 [Richard Levitte <levitte@stacken.kth.se>]
7344 *) Fix problems with sizeof(long) == 8.
7345 [Andy Polyakov <appro@fy.chalmers.se>]
7347 *) Change functions to ANSI C.
7350 *) Fix typos in error codes.
7351 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
7353 *) Remove defunct assembler files from Configure.
7356 *) SPARC v8 assembler BIGNUM implementation.
7357 [Andy Polyakov <appro@fy.chalmers.se>]
7359 *) Support for Certificate Policies extension: both print and set.
7360 Various additions to support the r2i method this uses.
7363 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
7364 return a const string when you are expecting an allocated buffer.
7367 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
7368 types DirectoryString and DisplayText.
7371 *) Add code to allow r2i extensions to access the configuration database,
7372 add an LHASH database driver and add several ctx helper functions.
7375 *) Fix an evil bug in bn_expand2() which caused various BN functions to
7376 fail when they extended the size of a BIGNUM.
7379 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
7380 support typesafe stack.
7383 *) Fix typo in SSL_[gs]et_options().
7384 [Nils Frostberg <nils@medcom.se>]
7386 *) Delete various functions and files that belonged to the (now obsolete)
7387 old X509V3 handling code.
7390 *) New Configure option "rsaref".
7393 *) Don't auto-generate pem.h.
7396 *) Introduce type-safe ASN.1 SETs.
7399 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
7400 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
7402 *) Introduce type-safe STACKs. This will almost certainly break lots of code
7403 that links with OpenSSL (well at least cause lots of warnings), but fear
7404 not: the conversion is trivial, and it eliminates loads of evil casts. A
7405 few STACKed things have been converted already. Feel free to convert more.
7406 In the fullness of time, I'll do away with the STACK type altogether.
7409 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
7410 specified in <certfile> by updating the entry in the index.txt file.
7411 This way one no longer has to edit the index.txt file manually for
7412 revoking a certificate. The -revoke option does the gory details now.
7413 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
7415 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
7416 `-text' option at all and this way the `-noout -text' combination was
7417 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
7418 [Ralf S. Engelschall]
7420 *) Make sure a corresponding plain text error message exists for the
7421 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
7422 verify callback function determined that a certificate was revoked.
7423 [Ralf S. Engelschall]
7425 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
7426 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
7427 all available cipers including rc5, which was forgotten until now.
7428 In order to let the testing shell script know which algorithms
7429 are available, a new (up to now undocumented) command
7430 "openssl list-cipher-commands" is used.
7433 *) Bugfix: s_client occasionally would sleep in select() when
7434 it should have checked SSL_pending() first.
7437 *) New functions DSA_do_sign and DSA_do_verify to provide access to
7438 the raw DSA values prior to ASN.1 encoding.
7441 *) Tweaks to Configure
7442 [Niels Poppe <niels@netbox.org>]
7444 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
7448 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
7451 *) New config option to avoid instructions that are illegal on the 80386.
7452 The default code is faster, but requires at least a 486.
7455 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
7456 SSL2_SERVER_VERSION (not used at all) macros, which are now the
7457 same as SSL2_VERSION anyway.
7460 *) New "-showcerts" option for s_client.
7463 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
7464 application. Various cleanups and fixes.
7467 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
7468 modify error routines to work internally. Add error codes and PBE init
7469 to library startup routines.
7472 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
7473 packing functions to asn1 and evp. Changed function names and error
7474 codes along the way.
7477 *) PKCS12 integration: and so it begins... First of several patches to
7478 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
7479 objects to objects.h
7482 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
7483 and display support for Thawte strong extranet extension.
7486 *) Add LinuxPPC support.
7487 [Jeff Dubrule <igor@pobox.org>]
7489 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
7490 bn_div_words in alpha.s.
7491 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
7493 *) Make sure the RSA OAEP test is skipped under -DRSAref because
7494 OAEP isn't supported when OpenSSL is built with RSAref.
7495 [Ulf Moeller <ulf@fitug.de>]
7497 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
7498 so they no longer are missing under -DNOPROTO.
7499 [Soren S. Jorvang <soren@t.dk>]
7502 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
7504 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
7505 doesn't work when the session is reused. Coming soon!
7508 *) Fix a security hole, that allows sessions to be reused in the wrong
7509 context thus bypassing client cert protection! All software that uses
7510 client certs and session caches in multiple contexts NEEDS PATCHING to
7511 allow session reuse! A fuller solution is in the works.
7512 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
7514 *) Some more source tree cleanups (removed obsolete files
7515 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
7516 permission on "config" script to be executable) and a fix for the INSTALL
7518 [Ulf Moeller <ulf@fitug.de>]
7520 *) Remove some legacy and erroneous uses of malloc, free instead of
7522 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
7524 *) Make rsa_oaep_test return non-zero on error.
7525 [Ulf Moeller <ulf@fitug.de>]
7527 *) Add support for native Solaris shared libraries. Configure
7528 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
7529 if someone would make that last step automatic.
7530 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
7532 *) ctx_size was not built with the right compiler during "make links". Fixed.
7535 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
7536 except NULL ciphers". This means the default cipher list will no longer
7537 enable NULL ciphers. They need to be specifically enabled e.g. with
7538 the string "DEFAULT:eNULL".
7541 *) Fix to RSA private encryption routines: if p < q then it would
7542 occasionally produce an invalid result. This will only happen with
7543 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
7546 *) Be less restrictive and allow also `perl util/perlpath.pl
7547 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
7548 because this way one can also use an interpreter named `perl5' (which is
7549 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
7550 installed as `perl').
7551 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7553 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
7554 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7556 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
7557 advapi32.lib to Win32 build and change the pem test comparision
7558 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
7559 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
7560 and crypto/des/ede_cbcm_enc.c.
7563 *) DES quad checksum was broken on big-endian architectures. Fixed.
7566 *) Comment out two functions in bio.h that aren't implemented. Fix up the
7567 Win32 test batch file so it (might) work again. The Win32 test batch file
7568 is horrible: I feel ill....
7571 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
7572 in e_os.h. Audit of header files to check ANSI and non ANSI
7573 sections: 10 functions were absent from non ANSI section and not exported
7574 from Windows DLLs. Fixed up libeay.num for new functions.
7577 *) Make `openssl version' output lines consistent.
7578 [Ralf S. Engelschall]
7580 *) Fix Win32 symbol export lists for BIO functions: Added
7581 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
7582 to ms/libeay{16,32}.def.
7583 [Ralf S. Engelschall]
7585 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
7586 fine under Unix and passes some trivial tests I've now added. But the
7587 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
7588 added to make sure no one expects that this stuff really works in the
7589 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
7590 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
7592 [Ralf S. Engelschall]
7594 *) Fix the generation of two part addresses in perl.
7595 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
7597 *) Add config entry for Linux on MIPS.
7598 [John Tobey <jtobey@channel1.com>]
7600 *) Make links whenever Configure is run, unless we are on Windoze.
7603 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
7604 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
7608 *) Add a useful kludge to allow package maintainers to specify compiler and
7609 other platforms details on the command line without having to patch the
7610 Configure script everytime: One now can use ``perl Configure
7611 <id>:<details>'', i.e. platform ids are allowed to have details appended
7612 to them (seperated by colons). This is treated as there would be a static
7613 pre-configured entry in Configure's %table under key <id> with value
7614 <details> and ``perl Configure <id>'' is called. So, when you want to
7615 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
7616 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
7617 now, which overrides the FreeBSD-elf entry on-the-fly.
7618 [Ralf S. Engelschall]
7620 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
7623 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
7624 on the `perl Configure ...' command line. This way one can compile
7625 OpenSSL libraries with Position Independent Code (PIC) which is needed
7626 for linking it into DSOs.
7627 [Ralf S. Engelschall]
7629 *) Remarkably, export ciphers were totally broken and no-one had noticed!
7633 *) Cleaned up the LICENSE document: The official contact for any license
7634 questions now is the OpenSSL core team under openssl-core@openssl.org.
7635 And add a paragraph about the dual-license situation to make sure people
7636 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
7637 to the OpenSSL toolkit.
7638 [Ralf S. Engelschall]
7640 *) General source tree makefile cleanups: Made `making xxx in yyy...'
7641 display consistent in the source tree and replaced `/bin/rm' by `rm'.
7642 Additonally cleaned up the `make links' target: Remove unnecessary
7643 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
7644 to speed processing and no longer clutter the display with confusing
7645 stuff. Instead only the actually done links are displayed.
7646 [Ralf S. Engelschall]
7648 *) Permit null encryption ciphersuites, used for authentication only. It used
7649 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
7650 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
7654 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
7655 signed attributes when verifying signatures (this would break them),
7656 the detached data encoding was wrong and public keys obtained using
7657 X509_get_pubkey() weren't freed.
7660 *) Add text documentation for the BUFFER functions. Also added a work around
7661 to a Win95 console bug. This was triggered by the password read stuff: the
7662 last character typed gets carried over to the next fread(). If you were
7663 generating a new cert request using 'req' for example then the last
7664 character of the passphrase would be CR which would then enter the first
7668 *) Added the new `Includes OpenSSL Cryptography Software' button as
7669 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
7670 button and can be used by applications based on OpenSSL to show the
7671 relationship to the OpenSSL project.
7672 [Ralf S. Engelschall]
7674 *) Remove confusing variables in function signatures in files
7675 ssl/ssl_lib.c and ssl/ssl.h.
7676 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7678 *) Don't install bss_file.c under PREFIX/include/
7679 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7681 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
7682 functions that return function pointers and has support for NT specific
7683 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
7684 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
7685 unsigned to signed types: this was killing the Win32 compile.
7688 *) Add new certificate file to stack functions,
7689 SSL_add_dir_cert_subjects_to_stack() and
7690 SSL_add_file_cert_subjects_to_stack(). These largely supplant
7691 SSL_load_client_CA_file(), and can be used to add multiple certs easily
7692 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
7693 This means that Apache-SSL and similar packages don't have to mess around
7694 to add as many CAs as they want to the preferred list.
7697 *) Experiment with doxygen documentation. Currently only partially applied to
7699 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
7700 openssl.doxy as the configuration file.
7703 *) Get rid of remaining C++-style comments which strict C compilers hate.
7704 [Ralf S. Engelschall, pointed out by Carlos Amengual]
7706 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
7707 compiled in by default: it has problems with large keys.
7710 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
7711 DH private keys and/or callback functions which directly correspond to
7712 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
7713 is needed for applications which have to configure certificates on a
7714 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
7716 For the RSA certificate situation is makes no difference, but
7717 for the DSA certificate situation this fixes the "no shared cipher"
7718 problem where the OpenSSL cipher selection procedure failed because the
7719 temporary keys were not overtaken from the context and the API provided
7720 no way to reconfigure them.
7721 The new functions now let applications reconfigure the stuff and they
7722 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
7723 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
7724 non-public-API function ssl_cert_instantiate() is used as a helper
7725 function and also to reduce code redundancy inside ssl_rsa.c.
7726 [Ralf S. Engelschall]
7728 *) Move s_server -dcert and -dkey options out of the undocumented feature
7729 area because they are useful for the DSA situation and should be
7730 recognized by the users.
7731 [Ralf S. Engelschall]
7733 *) Fix the cipher decision scheme for export ciphers: the export bits are
7734 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
7735 SSL_EXP_MASK. So, the original variable has to be used instead of the
7736 already masked variable.
7737 [Richard Levitte <levitte@stacken.kth.se>]
7739 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
7740 [Richard Levitte <levitte@stacken.kth.se>]
7742 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
7743 from `int' to `unsigned int' because it's a length and initialized by
7744 EVP_DigestFinal() which expects an `unsigned int *'.
7745 [Richard Levitte <levitte@stacken.kth.se>]
7747 *) Don't hard-code path to Perl interpreter on shebang line of Configure
7748 script. Instead use the usual Shell->Perl transition trick.
7749 [Ralf S. Engelschall]
7751 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
7752 (in addition to RSA certificates) to match the behaviour of `openssl dsa
7753 -noout -modulus' as it's already the case for `openssl rsa -noout
7754 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
7755 currently the public key is printed (a decision which was already done by
7756 `openssl dsa -modulus' in the past) which serves a similar purpose.
7757 Additionally the NO_RSA no longer completely removes the whole -modulus
7758 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
7760 [Ralf S. Engelschall]
7762 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
7763 BIO. See the source (crypto/evp/bio_ok.c) for more info.
7764 [Arne Ansper <arne@ats.cyber.ee>]
7766 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
7767 to be added. Now both 'req' and 'ca' can use new objects defined in the
7771 *) Add cool BIO that does syslog (or event log on NT).
7772 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
7774 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
7775 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
7776 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
7777 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
7780 *) Add preliminary config info for new extension code.
7783 *) Make RSA_NO_PADDING really use no padding.
7784 [Ulf Moeller <ulf@fitug.de>]
7786 *) Generate errors when private/public key check is done.
7789 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
7790 for some CRL extensions and new objects added.
7793 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
7794 key usage extension and fuller support for authority key id.
7797 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
7798 padding method for RSA, which is recommended for new applications in PKCS
7799 #1 v2.0 (RFC 2437, October 1998).
7800 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
7801 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
7802 against Bleichbacher's attack on RSA.
7803 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
7806 *) Updates to the new SSL compression code
7807 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7809 *) Fix so that the version number in the master secret, when passed
7810 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
7811 (because the server will not accept higher), that the version number
7812 is 0x03,0x01, not 0x03,0x00
7813 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7815 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
7816 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
7817 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
7820 *) Support for RAW extensions where an arbitrary extension can be
7821 created by including its DER encoding. See apps/openssl.cnf for
7825 *) Make sure latest Perl versions don't interpret some generated C array
7826 code as Perl array code in the crypto/err/err_genc.pl script.
7827 [Lars Weber <3weber@informatik.uni-hamburg.de>]
7829 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
7830 not many people have the assembler. Various Win32 compilation fixes and
7831 update to the INSTALL.W32 file with (hopefully) more accurate Win32
7835 *) Modify configure script 'Configure' to automatically create crypto/date.h
7836 file under Win32 and also build pem.h from pem.org. New script
7837 util/mkfiles.pl to create the MINFO file on environments that can't do a
7838 'make files': perl util/mkfiles.pl >MINFO should work.
7841 *) Major rework of DES function declarations, in the pursuit of correctness
7842 and purity. As a result, many evil casts evaporated, and some weirdness,
7843 too. You may find this causes warnings in your code. Zapping your evil
7844 casts will probably fix them. Mostly.
7847 *) Fix for a typo in asn1.h. Bug fix to object creation script
7848 obj_dat.pl. It considered a zero in an object definition to mean
7849 "end of object": none of the objects in objects.h have any zeros
7850 so it wasn't spotted.
7851 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
7853 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
7854 Masking (CBCM). In the absence of test vectors, the best I have been able
7855 to do is check that the decrypt undoes the encrypt, so far. Send me test
7856 vectors if you have them.
7859 *) Correct calculation of key length for export ciphers (too much space was
7860 allocated for null ciphers). This has not been tested!
7863 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
7864 message is now correct (it understands "crypto" and "ssl" on its
7865 command line). There is also now an "update" option. This will update
7866 the util/ssleay.num and util/libeay.num files with any new functions.
7868 perl util/mkdef.pl crypto ssl update
7869 it will update them.
7872 *) Overhauled the Perl interface (perl/*):
7873 - ported BN stuff to OpenSSL's different BN library
7874 - made the perl/ source tree CVS-aware
7875 - renamed the package from SSLeay to OpenSSL (the files still contain
7876 their history because I've copied them in the repository)
7877 - removed obsolete files (the test scripts will be replaced
7878 by better Test::Harness variants in the future)
7879 [Ralf S. Engelschall]
7881 *) First cut for a very conservative source tree cleanup:
7882 1. merge various obsolete readme texts into doc/ssleay.txt
7883 where we collect the old documents and readme texts.
7884 2. remove the first part of files where I'm already sure that we no
7885 longer need them because of three reasons: either they are just temporary
7886 files which were left by Eric or they are preserved original files where
7887 I've verified that the diff is also available in the CVS via "cvs diff
7888 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
7889 the crypto/md/ stuff).
7890 [Ralf S. Engelschall]
7892 *) More extension code. Incomplete support for subject and issuer alt
7893 name, issuer and authority key id. Change the i2v function parameters
7894 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
7895 what that's for :-) Fix to ASN1 macro which messed up
7896 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
7899 *) Preliminary support for ENUMERATED type. This is largely copied from the
7903 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
7904 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7906 *) Make sure `make rehash' target really finds the `openssl' program.
7907 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7909 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
7910 like to hear about it if this slows down other processors.
7913 *) Add CygWin32 platform information to Configure script.
7914 [Alan Batie <batie@aahz.jf.intel.com>]
7916 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
7917 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
7919 *) New program nseq to manipulate netscape certificate sequences
7922 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
7926 *) Fixes to BN code. Previously the default was to define BN_RECURSION
7927 but the BN code had some problems that would cause failures when
7928 doing certificate verification and some other functions.
7929 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7931 *) Add ASN1 and PEM code to support netscape certificate sequences.
7934 *) Add ASN1 and PEM code to support netscape certificate sequences.
7937 *) Add several PKIX and private extended key usage OIDs.
7940 *) Modify the 'ca' program to handle the new extension code. Modify
7941 openssl.cnf for new extension format, add comments.
7944 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
7945 and add a sample to openssl.cnf so req -x509 now adds appropriate
7949 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
7950 error code, add initial support to X509_print() and x509 application.
7953 *) Takes a deep breath and start addding X509 V3 extension support code. Add
7954 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
7955 stuff is currently isolated and isn't even compiled yet.
7958 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
7959 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
7960 Removed the versions check from X509 routines when loading extensions:
7961 this allows certain broken certificates that don't set the version
7962 properly to be processed.
7965 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
7966 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
7967 can still be regenerated with "make depend".
7970 *) Spelling mistake in C version of CAST-128.
7971 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
7973 *) Changes to the error generation code. The perl script err-code.pl
7974 now reads in the old error codes and retains the old numbers, only
7975 adding new ones if necessary. It also only changes the .err files if new
7976 codes are added. The makefiles have been modified to only insert errors
7977 when needed (to avoid needlessly modifying header files). This is done
7978 by only inserting errors if the .err file is newer than the auto generated
7979 C file. To rebuild all the error codes from scratch (the old behaviour)
7980 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
7981 or delete all the .err files.
7984 *) CAST-128 was incorrectly implemented for short keys. The C version has
7985 been fixed, but is untested. The assembler versions are also fixed, but
7986 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
7987 to regenerate it if needed.
7988 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
7989 Hagino <itojun@kame.net>]
7991 *) File was opened incorrectly in randfile.c.
7992 [Ulf Möller <ulf@fitug.de>]
7994 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
7995 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
7996 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
7997 al: it's just almost always a UTCTime. Note this patch adds new error
7998 codes so do a "make errors" if there are problems.
8001 *) Correct Linux 1 recognition in config.
8002 [Ulf Möller <ulf@fitug.de>]
8004 *) Remove pointless MD5 hash when using DSA keys in ca.
8005 [Anonymous <nobody@replay.com>]
8007 *) Generate an error if given an empty string as a cert directory. Also
8008 generate an error if handed NULL (previously returned 0 to indicate an
8009 error, but didn't set one).
8010 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
8012 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
8015 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
8016 parameters. This was causing a warning which killed off the Win32 compile.
8019 *) Remove C++ style comments from crypto/bn/bn_local.h.
8020 [Neil Costigan <neil.costigan@celocom.com>]
8022 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
8023 based on a text string, looking up short and long names and finally
8024 "dot" format. The "dot" format stuff didn't work. Added new function
8025 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
8026 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
8027 OID is not part of the table.
8030 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
8031 X509_LOOKUP_by_alias().
8034 *) Sort openssl functions by name.
8037 *) Get the gendsa program working (hopefully) and add it to app list. Remove
8038 encryption from sample DSA keys (in case anyone is interested the password
8042 *) Make _all_ *_free functions accept a NULL pointer.
8043 [Frans Heymans <fheymans@isaserver.be>]
8045 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
8047 [Anonymous <nobody@replay.com>]
8049 *) s_server should send the CAfile as acceptable CAs, not its own cert.
8050 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8052 *) Don't blow it for numeric -newkey arguments to apps/req.
8053 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8055 *) Temp key "for export" tests were wrong in s3_srvr.c.
8056 [Anonymous <nobody@replay.com>]
8058 *) Add prototype for temp key callback functions
8059 SSL_CTX_set_tmp_{rsa,dh}_callback().
8062 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
8063 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
8066 *) X509_name_add_entry() freed the wrong thing after an error.
8067 [Arne Ansper <arne@ats.cyber.ee>]
8069 *) rsa_eay.c would attempt to free a NULL context.
8070 [Arne Ansper <arne@ats.cyber.ee>]
8072 *) BIO_s_socket() had a broken should_retry() on Windoze.
8073 [Arne Ansper <arne@ats.cyber.ee>]
8075 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
8076 [Arne Ansper <arne@ats.cyber.ee>]
8078 *) Make sure the already existing X509_STORE->depth variable is initialized
8079 in X509_STORE_new(), but document the fact that this variable is still
8080 unused in the certificate verification process.
8081 [Ralf S. Engelschall]
8083 *) Fix the various library and apps files to free up pkeys obtained from
8084 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
8087 *) Fix reference counting in X509_PUBKEY_get(). This makes
8088 demos/maurice/example2.c work, amongst others, probably.
8089 [Steve Henson and Ben Laurie]
8091 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
8092 `openssl' and second, the shortcut symlinks for the `openssl <command>'
8093 are no longer created. This way we have a single and consistent command
8094 line interface `openssl <command>', similar to `cvs <command>'.
8095 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
8097 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
8098 BIT STRING wrapper always have zero unused bits.
8101 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
8104 *) Make the top-level INSTALL documentation easier to understand.
8107 *) Makefiles updated to exit if an error occurs in a sub-directory
8108 make (including if user presses ^C) [Paul Sutton]
8110 *) Make Montgomery context stuff explicit in RSA data structure.
8113 *) Fix build order of pem and err to allow for generated pem.h.
8116 *) Fix renumbering bug in X509_NAME_delete_entry().
8119 *) Enhanced the err-ins.pl script so it makes the error library number
8120 global and can add a library name. This is needed for external ASN1 and
8121 other error libraries.
8124 *) Fixed sk_insert which never worked properly.
8127 *) Fix ASN1 macros so they can handle indefinite length construted
8128 EXPLICIT tags. Some non standard certificates use these: they can now
8132 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
8133 into a single doc/ssleay.txt bundle. This way the information is still
8134 preserved but no longer messes up this directory. Now it's new room for
8135 the new set of documenation files.
8136 [Ralf S. Engelschall]
8138 *) SETs were incorrectly DER encoded. This was a major pain, because they
8139 shared code with SEQUENCEs, which aren't coded the same. This means that
8140 almost everything to do with SETs or SEQUENCEs has either changed name or
8141 number of arguments.
8142 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
8144 *) Fix test data to work with the above.
8147 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
8148 was already fixed by Eric for 0.9.1 it seems.
8149 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
8151 *) Autodetect FreeBSD3.
8154 *) Fix various bugs in Configure. This affects the following platforms:
8158 unixware-2.0-pentium
8162 *) Eliminate generated files from CVS. Reorder tests to regenerate files
8163 before they are needed.
8166 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
8170 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
8172 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
8173 changed SSLeay to OpenSSL in version strings.
8174 [Ralf S. Engelschall]
8176 *) Some fixups to the top-level documents.
8179 *) Fixed the nasty bug where rsaref.h was not found under compile-time
8180 because the symlink to include/ was missing.
8181 [Ralf S. Engelschall]
8183 *) Incorporated the popular no-RSA/DSA-only patches
8184 which allow to compile a RSA-free SSLeay.
8185 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
8187 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
8188 when "ssleay" is still not found.
8189 [Ralf S. Engelschall]
8191 *) Added more platforms to Configure: Cray T3E, HPUX 11,
8192 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
8194 *) Updated the README file.
8195 [Ralf S. Engelschall]
8197 *) Added various .cvsignore files in the CVS repository subdirs
8198 to make a "cvs update" really silent.
8199 [Ralf S. Engelschall]
8201 *) Recompiled the error-definition header files and added
8202 missing symbols to the Win32 linker tables.
8203 [Ralf S. Engelschall]
8205 *) Cleaned up the top-level documents;
8206 o new files: CHANGES and LICENSE
8207 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
8208 o merged COPYRIGHT into LICENSE
8209 o removed obsolete TODO file
8210 o renamed MICROSOFT to INSTALL.W32
8211 [Ralf S. Engelschall]
8213 *) Removed dummy files from the 0.9.1b source tree:
8214 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
8215 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
8216 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
8217 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
8218 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
8219 [Ralf S. Engelschall]
8221 *) Added various platform portability fixes.
8224 *) The Genesis of the OpenSSL rpject:
8225 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
8226 Young and Tim J. Hudson created while they were working for C2Net until
8228 [The OpenSSL Project]
8231 Changes between 0.9.0b and 0.9.1b [not released]
8233 *) Updated a few CA certificates under certs/
8236 *) Changed some BIGNUM api stuff.
8239 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
8240 DGUX x86, Linux Alpha, etc.
8243 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
8244 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
8248 *) Add -strparse option to asn1pars program which parses nested
8250 [Dr Stephen Henson <shenson@bigfoot.com>]
8252 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
8255 *) DSA fix for "ca" program.
8258 *) Added "-genkey" option to "dsaparam" program.
8261 *) Added RIPE MD160 (rmd160) message digest.
8264 *) Added -a (all) option to "ssleay version" command.
8267 *) Added PLATFORM define which is the id given to Configure.
8270 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
8273 *) Extended the ASN.1 parser routines.
8276 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
8279 *) Added a BN_CTX to the BN library.
8282 *) Fixed the weak key values in DES library
8285 *) Changed API in EVP library for cipher aliases.
8288 *) Added support for RC2/64bit cipher.
8291 *) Converted the lhash library to the crypto/mem.c functions.
8294 *) Added more recognized ASN.1 object ids.
8297 *) Added more RSA padding checks for SSL/TLS.
8300 *) Added BIO proxy/filter functionality.
8303 *) Added extra_certs to SSL_CTX which can be used
8304 send extra CA certificates to the client in the CA cert chain sending
8305 process. It can be configured with SSL_CTX_add_extra_chain_cert().
8308 *) Now Fortezza is denied in the authentication phase because
8309 this is key exchange mechanism is not supported by SSLeay at all.
8312 *) Additional PKCS1 checks.
8315 *) Support the string "TLSv1" for all TLS v1 ciphers.
8318 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
8319 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
8322 *) Fixed a few memory leaks.
8325 *) Fixed various code and comment typos.
8328 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
8329 bytes sent in the client random.
8330 [Edward Bishop <ebishop@spyglass.com>]