5 Changes between 0.9.8d and 0.9.8e [XX xxx XXXX]
7 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
8 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
9 When a point or a seed is encoded in a BIT STRING, we need to
10 prevent the removal of trailing zero bits to get the proper DER
11 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
12 of a NamedBitList, for which trailing 0 bits need to be removed.)
15 *) Have SSL/TLS server implementation tolerate "mismatched" record
16 protocol version while receiving ClientHello even if the
17 ClientHello is fragmented. (The server can't insist on the
18 particular protocol version it has chosen before the ServerHello
19 message has informed the client about his choice.)
22 *) Add RFC 3779 support.
23 [Rob Austein for ARIN, Ben Laurie]
25 *) Load error codes if they are not already present instead of using a
26 static variable. This allows them to be cleanly unloaded and reloaded.
27 Improve header file function name parsing.
30 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
32 *) Introduce limits to prevent malicious keys being able to
33 cause a denial of service. (CVE-2006-2940)
34 [Steve Henson, Bodo Moeller]
36 *) Fix ASN.1 parsing of certain invalid structures that can result
37 in a denial of service. (CVE-2006-2937) [Steve Henson]
39 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
40 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
42 *) Fix SSL client code which could crash if connecting to a
43 malicious SSLv2 server. (CVE-2006-4343)
44 [Tavis Ormandy and Will Drewry, Google Security Team]
46 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
47 match only those. Before that, "AES256-SHA" would be interpreted
48 as a pattern and match "AES128-SHA" too (since AES128-SHA got
49 the same strength classification in 0.9.7h) as we currently only
50 have a single AES bit in the ciphersuite description bitmap.
51 That change, however, also applied to ciphersuite strings such as
52 "RC4-MD5" that intentionally matched multiple ciphersuites --
53 namely, SSL 2.0 ciphersuites in addition to the more common ones
56 So we change the selection algorithm again: Naming an explicit
57 ciphersuite selects this one ciphersuite, and any other similar
58 ciphersuite (same bitmap) from *other* protocol versions.
59 Thus, "RC4-MD5" again will properly select both the SSL 2.0
60 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
62 Since SSL 2.0 does not have any ciphersuites for which the
63 128/256 bit distinction would be relevant, this works for now.
64 The proper fix will be to use different bits for AES128 and
65 AES256, which would have avoided the problems from the beginning;
66 however, bits are scarce, so we can only do this in a new release
67 (not just a patchlevel) when we can change the SSL_CIPHER
68 definition to split the single 'unsigned long mask' bitmap into
69 multiple values to extend the available space.
73 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
75 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
76 (CVE-2006-4339) [Ben Laurie and Google Security Team]
78 *) Add AES IGE and biIGE modes.
81 *) Change the Unix randomness entropy gathering to use poll() when
82 possible instead of select(), since the latter has some
83 undesirable limitations.
84 [Darryl Miles via Richard Levitte and Bodo Moeller]
86 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
87 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
88 cannot be implicitly activated as part of, e.g., the "AES" alias.
89 However, please upgrade to OpenSSL 0.9.9[-dev] for
90 non-experimental use of the ECC ciphersuites to get TLS extension
91 support, which is required for curve and point format negotiation
92 to avoid potential handshake problems.
95 *) Disable rogue ciphersuites:
97 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
98 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
99 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
101 The latter two were purportedly from
102 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
105 Also deactivate the remaining ciphersuites from
106 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
107 unofficial, and the ID has long expired.
110 *) Fix RSA blinding Heisenbug (problems sometimes occured on
111 dual-core machines) and other potential thread-safety issues.
114 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
115 versions), which is now available for royalty-free use
116 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
117 Also, add Camellia TLS ciphersuites from RFC 4132.
119 To minimize changes between patchlevels in the OpenSSL 0.9.8
120 series, Camellia remains excluded from compilation unless OpenSSL
121 is configured with 'enable-camellia'.
124 *) Disable the padding bug check when compression is in use. The padding
125 bug check assumes the first packet is of even length, this is not
126 necessarily true if compresssion is enabled and can result in false
127 positives causing handshake failure. The actual bug test is ancient
128 code so it is hoped that implementations will either have fixed it by
129 now or any which still have the bug do not support compression.
132 Changes between 0.9.8a and 0.9.8b [04 May 2006]
134 *) When applying a cipher rule check to see if string match is an explicit
135 cipher suite and only match that one cipher suite if it is.
138 *) Link in manifests for VC++ if needed.
139 [Austin Ziegler <halostatue@gmail.com>]
141 *) Update support for ECC-based TLS ciphersuites according to
142 draft-ietf-tls-ecc-12.txt with proposed changes (but without
143 TLS extensions, which are supported starting with the 0.9.9
144 branch, not in the OpenSSL 0.9.8 branch).
147 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
148 opaque EVP_CIPHER_CTX handling.
151 *) Fixes and enhancements to zlib compression code. We now only use
152 "zlib1.dll" and use the default __cdecl calling convention on Win32
153 to conform with the standards mentioned here:
154 http://www.zlib.net/DLL_FAQ.txt
155 Static zlib linking now works on Windows and the new --with-zlib-include
156 --with-zlib-lib options to Configure can be used to supply the location
157 of the headers and library. Gracefully handle case where zlib library
161 *) Several fixes and enhancements to the OID generation code. The old code
162 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
163 handle numbers larger than ULONG_MAX, truncated printing and had a
164 non standard OBJ_obj2txt() behaviour.
167 *) Add support for building of engines under engine/ as shared libraries
168 under VC++ build system.
171 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
172 Hopefully, we will not see any false combination of paths any more.
175 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
177 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
178 (part of SSL_OP_ALL). This option used to disable the
179 countermeasure against man-in-the-middle protocol-version
180 rollback in the SSL 2.0 server implementation, which is a bad
181 idea. (CVE-2005-2969)
183 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
184 for Information Security, National Institute of Advanced Industrial
185 Science and Technology [AIST], Japan)]
187 *) Add two function to clear and return the verify parameter flags.
190 *) Keep cipherlists sorted in the source instead of sorting them at
191 runtime, thus removing the need for a lock.
194 *) Avoid some small subgroup attacks in Diffie-Hellman.
195 [Nick Mathewson and Ben Laurie]
197 *) Add functions for well-known primes.
200 *) Extended Windows CE support.
201 [Satoshi Nakamura and Andy Polyakov]
203 *) Initialize SSL_METHOD structures at compile time instead of during
204 runtime, thus removing the need for a lock.
207 *) Make PKCS7_decrypt() work even if no certificate is supplied by
208 attempting to decrypt each encrypted key in turn. Add support to
212 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
214 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
217 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
220 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
221 key into the same file any more.
224 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
227 *) Add -utf8 command line and config file option to 'ca'.
228 [Stefan <stf@udoma.org]
230 *) Removed the macro des_crypt(), as it seems to conflict with some
231 libraries. Use DES_crypt().
234 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
235 involves renaming the source and generated shared-libs for
236 both. The engines will accept the corrected or legacy ids
237 ('ncipher' and '4758_cca' respectively) when binding. NB,
238 this only applies when building 'shared'.
239 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
241 *) Add attribute functions to EVP_PKEY structure. Modify
242 PKCS12_create() to recognize a CSP name attribute and
243 use it. Make -CSP option work again in pkcs12 utility.
246 *) Add new functionality to the bn blinding code:
247 - automatic re-creation of the BN_BLINDING parameters after
248 a fixed number of uses (currently 32)
249 - add new function for parameter creation
250 - introduce flags to control the update behaviour of the
251 BN_BLINDING parameters
252 - hide BN_BLINDING structure
253 Add a second BN_BLINDING slot to the RSA structure to improve
254 performance when a single RSA object is shared among several
258 *) Add support for DTLS.
259 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
261 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
262 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
265 *) Remove buggy and incompletet DH cert support from
266 ssl/ssl_rsa.c and ssl/s3_both.c
269 *) Use SHA-1 instead of MD5 as the default digest algorithm for
270 the apps/openssl applications.
273 *) Compile clean with "-Wall -Wmissing-prototypes
274 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
275 DEBUG_SAFESTACK must also be set.
278 *) Change ./Configure so that certain algorithms can be disabled by default.
279 The new counterpiece to "no-xxx" is "enable-xxx".
281 The patented RC5 and MDC2 algorithms will now be disabled unless
282 "enable-rc5" and "enable-mdc2", respectively, are specified.
284 (IDEA remains enabled despite being patented. This is because IDEA
285 is frequently required for interoperability, and there is no license
286 fee for non-commercial use. As before, "no-idea" can be used to
287 avoid this algorithm.)
291 *) Add processing of proxy certificates (see RFC 3820). This work was
292 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
293 EGEE (Enabling Grids for E-science in Europe).
296 *) RC4 performance overhaul on modern architectures/implementations, such
297 as Intel P4, IA-64 and AMD64.
300 *) New utility extract-section.pl. This can be used specify an alternative
301 section number in a pod file instead of having to treat each file as
302 a separate case in Makefile. This can be done by adding two lines to the
305 =for comment openssl_section:XXX
307 The blank line is mandatory.
311 *) New arguments -certform, -keyform and -pass for s_client and s_server
312 to allow alternative format key and certificate files and passphrase
316 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
317 update associated structures and add various utility functions.
319 Add new policy related verify parameters, include policy checking in
320 standard verify code. Enhance 'smime' application with extra parameters
321 to support policy checking and print out.
324 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
325 Nehemiah processors. These extensions support AES encryption in hardware
326 as well as RNG (though RNG support is currently disabled).
327 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
329 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
332 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
333 [Andy Polyakov and a number of other people]
335 *) Improved PowerPC platform support. Most notably BIGNUM assembler
336 implementation contributed by IBM.
337 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
339 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
340 exponent rather than 'unsigned long'. There is a corresponding change to
341 the new 'rsa_keygen' element of the RSA_METHOD structure.
342 [Jelte Jansen, Geoff Thorpe]
344 *) Functionality for creating the initial serial number file is now
345 moved from CA.pl to the 'ca' utility with a new option -create_serial.
347 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
348 number file to 1, which is bound to cause problems. To avoid
349 the problems while respecting compatibility between different 0.9.7
350 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
351 CA.pl for serial number initialization. With the new release 0.9.8,
352 we can fix the problem directly in the 'ca' utility.)
355 *) Reduced header interdepencies by declaring more opaque objects in
356 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
357 give fewer recursive includes, which could break lazy source code - so
358 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
359 developers should define this symbol when building and using openssl to
360 ensure they track the recommended behaviour, interfaces, [etc], but
361 backwards-compatible behaviour prevails when this isn't defined.
364 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
367 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
368 This will generate a random key of the appropriate length based on the
369 cipher context. The EVP_CIPHER can provide its own random key generation
370 routine to support keys of a specific form. This is used in the des and
371 3des routines to generate a key of the correct parity. Update S/MIME
372 code to use new functions and hence generate correct parity DES keys.
373 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
374 valid (weak or incorrect parity).
377 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
378 as looking them up. This is useful when the verified structure may contain
379 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
380 present unless the new PKCS7_NO_CRL flag is asserted.
383 *) Extend ASN1 oid configuration module. It now additionally accepts the
386 shortName = some long name, 1.2.3.4
389 *) Reimplemented the BN_CTX implementation. There is now no more static
390 limitation on the number of variables it can handle nor the depth of the
391 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
392 information can now expand as required, and rather than having a single
393 static array of bignums, BN_CTX now uses a linked-list of such arrays
394 allowing it to expand on demand whilst maintaining the usefulness of
398 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
399 to allow all RSA operations to function using a single BN_CTX.
402 *) Preliminary support for certificate policy evaluation and checking. This
403 is initially intended to pass the tests outlined in "Conformance Testing
404 of Relying Party Client Certificate Path Processing Logic" v1.07.
407 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
408 remained unused and not that useful. A variety of other little bignum
409 tweaks and fixes have also been made continuing on from the audit (see
413 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
414 associated ASN1, EVP and SSL functions and old ASN1 macros.
417 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
418 and this should never fail. So the return value from the use of
419 BN_set_word() (which can fail due to needless expansion) is now deprecated;
420 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
423 *) BN_CTX_get() should return zero-valued bignums, providing the same
424 initialised value as BN_new().
425 [Geoff Thorpe, suggested by Ulf Möller]
427 *) Support for inhibitAnyPolicy certificate extension.
430 *) An audit of the BIGNUM code is underway, for which debugging code is
431 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
432 is considered valid when processing BIGNUMs, and causes execution to
433 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
434 further steps are taken to deliberately pollute unused data in BIGNUM
435 structures to try and expose faulty code further on. For now, openssl will
436 (in its default mode of operation) continue to tolerate the inconsistent
437 forms that it has tolerated in the past, but authors and packagers should
438 consider trying openssl and their own applications when compiled with
439 these debugging symbols defined. It will help highlight potential bugs in
440 their own code, and will improve the test coverage for OpenSSL itself. At
441 some point, these tighter rules will become openssl's default to improve
442 maintainability, though the assert()s and other overheads will remain only
443 in debugging configurations. See bn.h for more details.
444 [Geoff Thorpe, Nils Larsch, Ulf Möller]
446 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
447 that can only be obtained through BN_CTX_new() (which implicitly
448 initialises it). The presence of this function only made it possible
449 to overwrite an existing structure (and cause memory leaks).
452 *) Because of the callback-based approach for implementing LHASH as a
453 template type, lh_insert() adds opaque objects to hash-tables and
454 lh_doall() or lh_doall_arg() are typically used with a destructor callback
455 to clean up those corresponding objects before destroying the hash table
456 (and losing the object pointers). So some over-zealous constifications in
457 LHASH have been relaxed so that lh_insert() does not take (nor store) the
458 objects as "const" and the lh_doall[_arg] callback wrappers are not
459 prototyped to have "const" restrictions on the object pointers they are
460 given (and so aren't required to cast them away any more).
463 *) The tmdiff.h API was so ugly and minimal that our own timing utility
464 (speed) prefers to use its own implementation. The two implementations
465 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
466 its object type properly exposed (MS_TM) instead of casting to/from "char
467 *". This may still change yet if someone realises MS_TM and "ms_time_***"
468 aren't necessarily the greatest nomenclatures - but this is what was used
469 internally to the implementation so I've used that for now.
472 *) Ensure that deprecated functions do not get compiled when
473 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
474 the self-tests were still using deprecated key-generation functions so
475 these have been updated also.
478 *) Reorganise PKCS#7 code to separate the digest location functionality
479 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
480 New function PKCS7_set_digest() to set the digest type for PKCS#7
481 digestedData type. Add additional code to correctly generate the
482 digestedData type and add support for this type in PKCS7 initialization
486 *) New function PKCS7_set0_type_other() this initializes a PKCS7
487 structure of type "other".
490 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
491 sure the loop does correctly stop and breaking ("division by zero")
492 modulus operations are not performed. The (pre-generated) prime
493 table crypto/bn/bn_prime.h was already correct, but it could not be
494 re-generated on some platforms because of the "division by zero"
495 situation in the script.
496 [Ralf S. Engelschall]
498 *) Update support for ECC-based TLS ciphersuites according to
499 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
500 SHA-1 now is only used for "small" curves (where the
501 representation of a field element takes up to 24 bytes); for
502 larger curves, the field element resulting from ECDH is directly
503 used as premaster secret.
504 [Douglas Stebila (Sun Microsystems Laboratories)]
506 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
507 curve secp160r1 to the tests.
508 [Douglas Stebila (Sun Microsystems Laboratories)]
510 *) Add the possibility to load symbols globally with DSO.
511 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
513 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
514 control of the error stack.
517 *) Add support for STORE in ENGINE.
520 *) Add the STORE type. The intention is to provide a common interface
521 to certificate and key stores, be they simple file-based stores, or
522 HSM-type store, or LDAP stores, or...
523 NOTE: The code is currently UNTESTED and isn't really used anywhere.
526 *) Add a generic structure called OPENSSL_ITEM. This can be used to
527 pass a list of arguments to any function as well as provide a way
528 for a function to pass data back to the caller.
531 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
532 works like BUF_strdup() but can be used to duplicate a portion of
533 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
537 *) Add the function sk_find_ex() which works like sk_find(), but will
538 return an index to an element even if an exact match couldn't be
539 found. The index is guaranteed to point at the element where the
540 searched-for key would be inserted to preserve sorting order.
543 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
544 takes an extra flags argument for optional functionality. Currently,
545 the following flags are defined:
547 OBJ_BSEARCH_VALUE_ON_NOMATCH
548 This one gets OBJ_bsearch_ex() to return a pointer to the first
549 element where the comparing function returns a negative or zero
552 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
553 This one gets OBJ_bsearch_ex() to return a pointer to the first
554 element where the comparing function returns zero. This is useful
555 if there are more than one element where the comparing function
559 *) Make it possible to create self-signed certificates with 'openssl ca'
560 in such a way that the self-signed certificate becomes part of the
561 CA database and uses the same mechanisms for serial number generation
562 as all other certificate signing. The new flag '-selfsign' enables
563 this functionality. Adapt CA.sh and CA.pl.in.
566 *) Add functionality to check the public key of a certificate request
567 against a given private. This is useful to check that a certificate
568 request can be signed by that key (self-signing).
571 *) Make it possible to have multiple active certificates with the same
572 subject in the CA index file. This is done only if the keyword
573 'unique_subject' is set to 'no' in the main CA section (default
574 if 'CA_default') of the configuration file. The value is saved
575 with the database itself in a separate index attribute file,
576 named like the index file with '.attr' appended to the name.
579 *) Generate muti valued AVAs using '+' notation in config files for
583 *) Support for nameConstraints certificate extension.
586 *) Support for policyConstraints certificate extension.
589 *) Support for policyMappings certificate extension.
592 *) Make sure the default DSA_METHOD implementation only uses its
593 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
594 and change its own handlers to be NULL so as to remove unnecessary
595 indirection. This lets alternative implementations fallback to the
596 default implementation more easily.
599 *) Support for directoryName in GeneralName related extensions
603 *) Make it possible to link applications using Makefile.shared.
604 Make that possible even when linking against static libraries!
607 *) Support for single pass processing for S/MIME signing. This now
608 means that S/MIME signing can be done from a pipe, in addition
609 cleartext signing (multipart/signed type) is effectively streaming
610 and the signed data does not need to be all held in memory.
612 This is done with a new flag PKCS7_STREAM. When this flag is set
613 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
614 is done after the data is output (and digests calculated) in
618 *) Add full support for -rpath/-R, both in shared libraries and
619 applications, at least on the platforms where it's known how
623 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
624 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
625 will now compute a table of multiples of the generator that
626 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
627 faster (notably in the case of a single point multiplication,
629 [Nils Larsch, Bodo Moeller]
631 *) IPv6 support for certificate extensions. The various extensions
632 which use the IP:a.b.c.d can now take IPv6 addresses using the
633 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
637 *) Added an ENGINE that implements RSA by performing private key
638 exponentiations with the GMP library. The conversions to and from
639 GMP's mpz_t format aren't optimised nor are any montgomery forms
640 cached, and on x86 it appears OpenSSL's own performance has caught up.
641 However there are likely to be other architectures where GMP could
642 provide a boost. This ENGINE is not built in by default, but it can be
643 specified at Configure time and should be accompanied by the necessary
644 linker additions, eg;
645 ./config -DOPENSSL_USE_GMP -lgmp
648 *) "openssl engine" will not display ENGINE/DSO load failure errors when
649 testing availability of engines with "-t" - the old behaviour is
650 produced by increasing the feature's verbosity with "-tt".
653 *) ECDSA routines: under certain error conditions uninitialized BN objects
654 could be freed. Solution: make sure initialization is performed early
655 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
659 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
660 and DH_METHOD (eg. by ENGINE implementations) to override the normal
661 software implementations. For DSA and DH, parameter generation can
662 also be overriden by providing the appropriate method callbacks.
665 *) Change the "progress" mechanism used in key-generation and
666 primality testing to functions that take a new BN_GENCB pointer in
667 place of callback/argument pairs. The new API functions have "_ex"
668 postfixes and the older functions are reimplemented as wrappers for
669 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
670 declarations of the old functions to help (graceful) attempts to
671 migrate to the new functions. Also, the new key-generation API
672 functions operate on a caller-supplied key-structure and return
673 success/failure rather than returning a key or NULL - this is to
674 help make "keygen" another member function of RSA_METHOD etc.
676 Example for using the new callback interface:
678 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
682 BN_GENCB_set(&my_cb, my_callback, my_arg);
684 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
685 /* For the meaning of a, b in calls to my_callback(), see the
686 * documentation of the function that calls the callback.
687 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
688 * my_callback should return 1 if it wants BN_is_prime_ex()
689 * to continue, or 0 to stop.
694 *) Change the ZLIB compression method to be stateful, and make it
695 available to TLS with the number defined in
696 draft-ietf-tls-compression-04.txt.
699 *) Add the ASN.1 structures and functions for CertificatePair, which
700 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
702 CertificatePair ::= SEQUENCE {
703 forward [0] Certificate OPTIONAL,
704 reverse [1] Certificate OPTIONAL,
705 -- at least one of the pair shall be present -- }
707 Also implement the PEM functions to read and write certificate
708 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
710 This needed to be defined, mostly for the sake of the LDAP
711 attribute crossCertificatePair, but may prove useful elsewhere as
715 *) Make it possible to inhibit symlinking of shared libraries in
716 Makefile.shared, for Cygwin's sake.
719 *) Extend the BIGNUM API by creating a function
720 void BN_set_negative(BIGNUM *a, int neg);
721 and a macro that behave like
722 int BN_is_negative(const BIGNUM *a);
724 to avoid the need to access 'a->neg' directly in applications.
727 *) Implement fast modular reduction for pseudo-Mersenne primes
728 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
729 EC_GROUP_new_curve_GFp() will now automatically use this
731 [Nils Larsch <nla@trustcenter.de>]
733 *) Add new lock type (CRYPTO_LOCK_BN).
736 *) Change the ENGINE framework to automatically load engines
737 dynamically from specific directories unless they could be
738 found to already be built in or loaded. Move all the
739 current engines except for the cryptodev one to a new
741 The engines in engines/ are built as shared libraries if
742 the "shared" options was given to ./Configure or ./config.
743 Otherwise, they are inserted in libcrypto.a.
744 /usr/local/ssl/engines is the default directory for dynamic
745 engines, but that can be overriden at configure time through
746 the usual use of --prefix and/or --openssldir, and at run
747 time with the environment variable OPENSSL_ENGINES.
748 [Geoff Thorpe and Richard Levitte]
750 *) Add Makefile.shared, a helper makefile to build shared
751 libraries. Addapt Makefile.org.
754 *) Add version info to Win32 DLLs.
755 [Peter 'Luna' Runestig" <peter@runestig.com>]
757 *) Add new 'medium level' PKCS#12 API. Certificates and keys
758 can be added using this API to created arbitrary PKCS#12
759 files while avoiding the low level API.
761 New options to PKCS12_create(), key or cert can be NULL and
762 will then be omitted from the output file. The encryption
763 algorithm NIDs can be set to -1 for no encryption, the mac
764 iteration count can be set to 0 to omit the mac.
766 Enhance pkcs12 utility by making the -nokeys and -nocerts
767 options work when creating a PKCS#12 file. New option -nomac
768 to omit the mac, NONE can be set for an encryption algorithm.
769 New code is modified to use the enhanced PKCS12_create()
770 instead of the low level API.
773 *) Extend ASN1 encoder to support indefinite length constructed
774 encoding. This can output sequences tags and octet strings in
775 this form. Modify pk7_asn1.c to support indefinite length
776 encoding. This is experimental and needs additional code to
777 be useful, such as an ASN1 bio and some enhanced streaming
780 Extend template encode functionality so that tagging is passed
781 down to the template encoder.
784 *) Let 'openssl req' fail if an argument to '-newkey' is not
785 recognized instead of using RSA as a default.
788 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
789 As these are not official, they are not included in "ALL";
790 the "ECCdraft" ciphersuite group alias can be used to select them.
791 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
793 *) Add ECDH engine support.
794 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
796 *) Add ECDH in new directory crypto/ecdh/.
797 [Douglas Stebila (Sun Microsystems Laboratories)]
799 *) Let BN_rand_range() abort with an error after 100 iterations
800 without success (which indicates a broken PRNG).
803 *) Change BN_mod_sqrt() so that it verifies that the input value
804 is really the square of the return value. (Previously,
805 BN_mod_sqrt would show GIGO behaviour.)
808 *) Add named elliptic curves over binary fields from X9.62, SECG,
809 and WAP/WTLS; add OIDs that were still missing.
811 [Sheueling Chang Shantz and Douglas Stebila
812 (Sun Microsystems Laboratories)]
814 *) Extend the EC library for elliptic curves over binary fields
815 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
818 EC_GF2m_simple_method
822 EC_GROUP_new_curve_GF2m
823 EC_GROUP_set_curve_GF2m
824 EC_GROUP_get_curve_GF2m
825 EC_POINT_set_affine_coordinates_GF2m
826 EC_POINT_get_affine_coordinates_GF2m
827 EC_POINT_set_compressed_coordinates_GF2m
829 Point compression for binary fields is disabled by default for
830 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
833 As binary polynomials are represented as BIGNUMs, various members
834 of the EC_GROUP and EC_POINT data structures can be shared
835 between the implementations for prime fields and binary fields;
836 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
837 are essentially identical to their ..._GFp counterparts.
838 (For simplicity, the '..._GFp' prefix has been dropped from
839 various internal method names.)
841 An internal 'field_div' method (similar to 'field_mul' and
842 'field_sqr') has been added; this is used only for binary fields.
844 [Sheueling Chang Shantz and Douglas Stebila
845 (Sun Microsystems Laboratories)]
847 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
848 through methods ('mul', 'precompute_mult').
850 The generic implementations (now internally called 'ec_wNAF_mul'
851 and 'ec_wNAF_precomputed_mult') remain the default if these
852 methods are undefined.
854 [Sheueling Chang Shantz and Douglas Stebila
855 (Sun Microsystems Laboratories)]
857 *) New function EC_GROUP_get_degree, which is defined through
858 EC_METHOD. For curves over prime fields, this returns the bit
859 length of the modulus.
861 [Sheueling Chang Shantz and Douglas Stebila
862 (Sun Microsystems Laboratories)]
864 *) New functions EC_GROUP_dup, EC_POINT_dup.
865 (These simply call ..._new and ..._copy).
867 [Sheueling Chang Shantz and Douglas Stebila
868 (Sun Microsystems Laboratories)]
870 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
871 Polynomials are represented as BIGNUMs (where the sign bit is not
872 used) in the following functions [macros]:
875 BN_GF2m_sub [= BN_GF2m_add]
876 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
877 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
878 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
880 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
881 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
882 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
883 BN_GF2m_cmp [= BN_ucmp]
885 (Note that only the 'mod' functions are actually for fields GF(2^m).
886 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
888 For some functions, an the irreducible polynomial defining a
889 field can be given as an 'unsigned int[]' with strictly
890 decreasing elements giving the indices of those bits that are set;
891 i.e., p[] represents the polynomial
892 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
894 p[0] > p[1] > ... > p[k] = 0.
895 This applies to the following functions:
900 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
901 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
904 BN_GF2m_mod_solve_quad_arr
908 Conversion can be performed by the following functions:
913 bntest.c has additional tests for binary polynomial arithmetic.
915 Two implementations for BN_GF2m_mod_div() are available.
916 The default algorithm simply uses BN_GF2m_mod_inv() and
917 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
918 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
919 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
921 [Sheueling Chang Shantz and Douglas Stebila
922 (Sun Microsystems Laboratories)]
924 *) Add new error code 'ERR_R_DISABLED' that can be used when some
925 functionality is disabled at compile-time.
926 [Douglas Stebila <douglas.stebila@sun.com>]
928 *) Change default behaviour of 'openssl asn1parse' so that more
929 information is visible when viewing, e.g., a certificate:
931 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
932 mode the content of non-printable OCTET STRINGs is output in a
933 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
934 avoid the appearance of a printable string.
935 [Nils Larsch <nla@trustcenter.de>]
937 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
939 EC_GROUP_set_asn1_flag()
940 EC_GROUP_get_asn1_flag()
941 EC_GROUP_set_point_conversion_form()
942 EC_GROUP_get_point_conversion_form()
943 These control ASN1 encoding details:
944 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
945 has been set to OPENSSL_EC_NAMED_CURVE.
946 - Points are encoded in uncompressed form by default; options for
947 asn1_for are as for point2oct, namely
948 POINT_CONVERSION_COMPRESSED
949 POINT_CONVERSION_UNCOMPRESSED
950 POINT_CONVERSION_HYBRID
952 Also add 'seed' and 'seed_len' members to EC_GROUP with access
956 EC_GROUP_get_seed_len()
957 This is used only for ASN1 purposes (so far).
958 [Nils Larsch <nla@trustcenter.de>]
960 *) Add 'field_type' member to EC_METHOD, which holds the NID
961 of the appropriate field type OID. The new function
962 EC_METHOD_get_field_type() returns this value.
963 [Nils Larsch <nla@trustcenter.de>]
970 providing useful interfaces to EC_POINT_point2oct() and
971 EC_POINT_oct2point().
972 [Nils Larsch <nla@trustcenter.de>]
974 *) Change internals of the EC library so that the functions
975 EC_GROUP_set_generator()
976 EC_GROUP_get_generator()
978 EC_GROUP_get_cofactor()
979 are implemented directly in crypto/ec/ec_lib.c and not dispatched
980 to methods, which would lead to unnecessary code duplication when
981 adding different types of curves.
982 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
984 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
985 arithmetic, and such that modified wNAFs are generated
986 (which avoid length expansion in many cases).
989 *) Add a function EC_GROUP_check_discriminant() (defined via
990 EC_METHOD) that verifies that the curve discriminant is non-zero.
992 Add a function EC_GROUP_check() that makes some sanity tests
993 on a EC_GROUP, its generator and order. This includes
994 EC_GROUP_check_discriminant().
995 [Nils Larsch <nla@trustcenter.de>]
997 *) Add ECDSA in new directory crypto/ecdsa/.
999 Add applications 'openssl ecparam' and 'openssl ecdsa'
1000 (these are based on 'openssl dsaparam' and 'openssl dsa').
1002 ECDSA support is also included in various other files across the
1003 library. Most notably,
1004 - 'openssl req' now has a '-newkey ecdsa:file' option;
1005 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
1006 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
1007 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
1008 them suitable for ECDSA where domain parameters must be
1009 extracted before the specific public key;
1010 - ECDSA engine support has been added.
1011 [Nils Larsch <nla@trustcenter.de>]
1013 *) Include some named elliptic curves, and add OIDs from X9.62,
1014 SECG, and WAP/WTLS. Each curve can be obtained from the new
1016 EC_GROUP_new_by_curve_name(),
1017 and the list of available named curves can be obtained with
1018 EC_get_builtin_curves().
1019 Also add a 'curve_name' member to EC_GROUP objects, which can be
1021 EC_GROUP_set_curve_name()
1022 EC_GROUP_get_curve_name()
1023 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
1025 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
1026 was actually never needed) and in BN_mul(). The removal in BN_mul()
1027 required a small change in bn_mul_part_recursive() and the addition
1028 of the functions bn_cmp_part_words(), bn_sub_part_words() and
1029 bn_add_part_words(), which do the same thing as bn_cmp_words(),
1030 bn_sub_words() and bn_add_words() except they take arrays with
1034 Changes between 0.9.7l and 0.9.7m [xx XXX xxxx]
1036 *) Have SSL/TLS server implementation tolerate "mismatched" record
1037 protocol version while receiving ClientHello even if the
1038 ClientHello is fragmented. (The server can't insist on the
1039 particular protocol version it has chosen before the ServerHello
1040 message has informed the client about his choice.)
1043 *) Load error codes if they are not already present instead of using a
1044 static variable. This allows them to be cleanly unloaded and reloaded.
1047 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
1049 *) Introduce limits to prevent malicious keys being able to
1050 cause a denial of service. (CVE-2006-2940)
1051 [Steve Henson, Bodo Moeller]
1053 *) Fix ASN.1 parsing of certain invalid structures that can result
1054 in a denial of service. (CVE-2006-2937) [Steve Henson]
1056 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1057 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1059 *) Fix SSL client code which could crash if connecting to a
1060 malicious SSLv2 server. (CVE-2006-4343)
1061 [Tavis Ormandy and Will Drewry, Google Security Team]
1063 *) Change ciphersuite string processing so that an explicit
1064 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
1065 will no longer include "AES128-SHA"), and any other similar
1066 ciphersuite (same bitmap) from *other* protocol versions (so that
1067 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
1068 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
1069 changes from 0.9.8b and 0.9.8d.
1072 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
1074 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1075 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1077 *) Change the Unix randomness entropy gathering to use poll() when
1078 possible instead of select(), since the latter has some
1079 undesirable limitations.
1080 [Darryl Miles via Richard Levitte and Bodo Moeller]
1082 *) Disable rogue ciphersuites:
1084 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1085 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1086 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1088 The latter two were purportedly from
1089 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1092 Also deactive the remaining ciphersuites from
1093 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1094 unofficial, and the ID has long expired.
1097 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1098 dual-core machines) and other potential thread-safety issues.
1101 Changes between 0.9.7i and 0.9.7j [04 May 2006]
1103 *) Adapt fipsld and the build system to link against the validated FIPS
1104 module in FIPS mode.
1107 *) Fixes for VC++ 2005 build under Windows.
1110 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
1111 from a Windows bash shell such as MSYS. It is autodetected from the
1112 "config" script when run from a VC++ environment. Modify standard VC++
1113 build to use fipscanister.o from the GNU make build.
1116 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
1118 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
1119 The value now differs depending on if you build for FIPS or not.
1120 BEWARE! A program linked with a shared FIPSed libcrypto can't be
1121 safely run with a non-FIPSed libcrypto, as it may crash because of
1122 the difference induced by this change.
1125 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
1127 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1128 (part of SSL_OP_ALL). This option used to disable the
1129 countermeasure against man-in-the-middle protocol-version
1130 rollback in the SSL 2.0 server implementation, which is a bad
1131 idea. (CVE-2005-2969)
1133 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1134 for Information Security, National Institute of Advanced Industrial
1135 Science and Technology [AIST], Japan)]
1137 *) Minimal support for X9.31 signatures and PSS padding modes. This is
1138 mainly for FIPS compliance and not fully integrated at this stage.
1141 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
1142 the exponentiation using a fixed-length exponent. (Otherwise,
1143 the information leaked through timing could expose the secret key
1144 after many signatures; cf. Bleichenbacher's attack on DSA with
1148 *) Make a new fixed-window mod_exp implementation the default for
1149 RSA, DSA, and DH private-key operations so that the sequence of
1150 squares and multiplies and the memory access pattern are
1151 independent of the particular secret key. This will mitigate
1152 cache-timing and potential related attacks.
1154 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
1155 and this is automatically used by BN_mod_exp_mont() if the new flag
1156 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
1157 will use this BN flag for private exponents unless the flag
1158 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
1159 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
1161 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
1163 *) Change the client implementation for SSLv23_method() and
1164 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
1165 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
1166 (Previously, the SSL 2.0 backwards compatible Client Hello
1167 message format would be used even with SSL_OP_NO_SSLv2.)
1170 *) Add support for smime-type MIME parameter in S/MIME messages which some
1174 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
1175 a threadsafe manner. Modify rsa code to use new function and add calls
1176 to dsa and dh code (which had race conditions before).
1179 *) Include the fixed error library code in the C error file definitions
1180 instead of fixing them up at runtime. This keeps the error code
1181 structures constant.
1184 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
1186 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
1189 *) Fixes for newer kerberos headers. NB: the casts are needed because
1190 the 'length' field is signed on one version and unsigned on another
1191 with no (?) obvious way to tell the difference, without these VC++
1192 complains. Also the "definition" of FAR (blank) is no longer included
1193 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
1194 some needed definitions.
1197 *) Undo Cygwin change.
1200 *) Added support for proxy certificates according to RFC 3820.
1201 Because they may be a security thread to unaware applications,
1202 they must be explicitely allowed in run-time. See
1203 docs/HOWTO/proxy_certificates.txt for further information.
1206 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
1208 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
1209 server and client random values. Previously
1210 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
1211 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
1213 This change has negligible security impact because:
1215 1. Server and client random values still have 24 bytes of pseudo random
1218 2. Server and client random values are sent in the clear in the initial
1221 3. The master secret is derived using the premaster secret (48 bytes in
1222 size for static RSA ciphersuites) as well as client server and random
1225 The OpenSSL team would like to thank the UK NISCC for bringing this issue
1228 [Stephen Henson, reported by UK NISCC]
1230 *) Use Windows randomness collection on Cygwin.
1233 *) Fix hang in EGD/PRNGD query when communication socket is closed
1234 prematurely by EGD/PRNGD.
1235 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
1237 *) Prompt for pass phrases when appropriate for PKCS12 input format.
1240 *) Back-port of selected performance improvements from development
1241 branch, as well as improved support for PowerPC platforms.
1244 *) Add lots of checks for memory allocation failure, error codes to indicate
1245 failure and freeing up memory if a failure occurs.
1246 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
1248 *) Add new -passin argument to dgst.
1251 *) Perform some character comparisons of different types in X509_NAME_cmp:
1252 this is needed for some certificates that reencode DNs into UTF8Strings
1253 (in violation of RFC3280) and can't or wont issue name rollover
1257 *) Make an explicit check during certificate validation to see that
1258 the CA setting in each certificate on the chain is correct. As a
1259 side effect always do the following basic checks on extensions,
1260 not just when there's an associated purpose to the check:
1262 - if there is an unhandled critical extension (unless the user
1263 has chosen to ignore this fault)
1264 - if the path length has been exceeded (if one is set at all)
1265 - that certain extensions fit the associated purpose (if one has
1269 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
1271 *) Avoid a race condition when CRLs are checked in a multi threaded
1272 environment. This would happen due to the reordering of the revoked
1273 entries during signature checking and serial number lookup. Now the
1274 encoding is cached and the serial number sort performed under a lock.
1275 Add new STACK function sk_is_sorted().
1278 *) Add Delta CRL to the extension code.
1281 *) Various fixes to s3_pkt.c so alerts are sent properly.
1282 [David Holmes <d.holmes@f5.com>]
1284 *) Reduce the chances of duplicate issuer name and serial numbers (in
1285 violation of RFC3280) using the OpenSSL certificate creation utilities.
1286 This is done by creating a random 64 bit value for the initial serial
1287 number when a serial number file is created or when a self signed
1288 certificate is created using 'openssl req -x509'. The initial serial
1289 number file is created using 'openssl x509 -next_serial' in CA.pl
1290 rather than being initialized to 1.
1293 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
1295 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
1296 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
1297 [Joe Orton, Steve Henson]
1299 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
1301 [Joe Orton, Steve Henson]
1303 *) Make it possible to have multiple active certificates with the same
1304 subject in the CA index file. This is done only if the keyword
1305 'unique_subject' is set to 'no' in the main CA section (default
1306 if 'CA_default') of the configuration file. The value is saved
1307 with the database itself in a separate index attribute file,
1308 named like the index file with '.attr' appended to the name.
1311 *) X509 verify fixes. Disable broken certificate workarounds when
1312 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
1313 keyUsage extension present. Don't accept CRLs with unhandled critical
1314 extensions: since verify currently doesn't process CRL extensions this
1315 rejects a CRL with *any* critical extensions. Add new verify error codes
1319 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
1320 A clarification of RFC2560 will require the use of OCTET STRINGs and
1321 some implementations cannot handle the current raw format. Since OpenSSL
1322 copies and compares OCSP nonces as opaque blobs without any attempt at
1323 parsing them this should not create any compatibility issues.
1326 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
1327 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
1328 this HMAC (and other) operations are several times slower than OpenSSL
1332 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
1333 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1335 *) Use the correct content when signing type "other".
1338 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
1340 *) Fix various bugs revealed by running the NISCC test suite:
1342 Stop out of bounds reads in the ASN1 code when presented with
1343 invalid tags (CVE-2003-0543 and CVE-2003-0544).
1345 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
1347 If verify callback ignores invalid public key errors don't try to check
1348 certificate signature with the NULL public key.
1352 *) New -ignore_err option in ocsp application to stop the server
1353 exiting on the first error in a request.
1356 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
1357 if the server requested one: as stated in TLS 1.0 and SSL 3.0
1361 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
1362 extra data after the compression methods not only for TLS 1.0
1363 but also for SSL 3.0 (as required by the specification).
1364 [Bodo Moeller; problem pointed out by Matthias Loepfe]
1366 *) Change X509_certificate_type() to mark the key as exported/exportable
1367 when it's 512 *bits* long, not 512 bytes.
1370 *) Change AES_cbc_encrypt() so it outputs exact multiple of
1371 blocks during encryption.
1374 *) Various fixes to base64 BIO and non blocking I/O. On write
1375 flushes were not handled properly if the BIO retried. On read
1376 data was not being buffered properly and had various logic bugs.
1377 This also affects blocking I/O when the data being decoded is a
1381 *) Various S/MIME bugfixes and compatibility changes:
1382 output correct application/pkcs7 MIME type if
1383 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
1384 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
1385 of files as .eml work). Correctly handle very long lines in MIME
1389 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
1391 *) Countermeasure against the Klima-Pokorny-Rosa extension of
1392 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
1393 a protocol version number mismatch like a decryption error
1394 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
1397 *) Turn on RSA blinding by default in the default implementation
1398 to avoid a timing attack. Applications that don't want it can call
1399 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
1400 They would be ill-advised to do so in most cases.
1401 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
1403 *) Change RSA blinding code so that it works when the PRNG is not
1404 seeded (in this case, the secret RSA exponent is abused as
1405 an unpredictable seed -- if it is not unpredictable, there
1406 is no point in blinding anyway). Make RSA blinding thread-safe
1407 by remembering the creator's thread ID in rsa->blinding and
1408 having all other threads use local one-time blinding factors
1409 (this requires more computation than sharing rsa->blinding, but
1410 avoids excessive locking; and if an RSA object is not shared
1411 between threads, blinding will still be very fast).
1414 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
1415 ENGINE as defaults for all supported algorithms irrespective of
1416 the 'flags' parameter. 'flags' is now honoured, so applications
1417 should make sure they are passing it correctly.
1420 *) Target "mingw" now allows native Windows code to be generated in
1421 the Cygwin environment as well as with the MinGW compiler.
1424 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
1426 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
1427 via timing by performing a MAC computation even if incorrrect
1428 block cipher padding has been found. This is a countermeasure
1429 against active attacks where the attacker has to distinguish
1430 between bad padding and a MAC verification error. (CVE-2003-0078)
1432 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
1433 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
1434 Martin Vuagnoux (EPFL, Ilion)]
1436 *) Make the no-err option work as intended. The intention with no-err
1437 is not to have the whole error stack handling routines removed from
1438 libcrypto, it's only intended to remove all the function name and
1439 reason texts, thereby removing some of the footprint that may not
1440 be interesting if those errors aren't displayed anyway.
1442 NOTE: it's still possible for any application or module to have it's
1443 own set of error texts inserted. The routines are there, just not
1444 used by default when no-err is given.
1447 *) Add support for FreeBSD on IA64.
1448 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
1450 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
1451 Kerberos function mit_des_cbc_cksum(). Before this change,
1452 the value returned by DES_cbc_cksum() was like the one from
1453 mit_des_cbc_cksum(), except the bytes were swapped.
1454 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
1456 *) Allow an application to disable the automatic SSL chain building.
1457 Before this a rather primitive chain build was always performed in
1458 ssl3_output_cert_chain(): an application had no way to send the
1459 correct chain if the automatic operation produced an incorrect result.
1461 Now the chain builder is disabled if either:
1463 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
1465 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
1467 The reasoning behind this is that an application would not want the
1468 auto chain building to take place if extra chain certificates are
1469 present and it might also want a means of sending no additional
1470 certificates (for example the chain has two certificates and the
1474 *) Add the possibility to build without the ENGINE framework.
1475 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1477 *) Under Win32 gmtime() can return NULL: check return value in
1478 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
1481 *) DSA routines: under certain error conditions uninitialized BN objects
1482 could be freed. Solution: make sure initialization is performed early
1483 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
1484 Nils Larsch <nla@trustcenter.de> via PR#459)
1487 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
1488 checked on reconnect on the client side, therefore session resumption
1489 could still fail with a "ssl session id is different" error. This
1490 behaviour is masked when SSL_OP_ALL is used due to
1491 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
1492 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1493 followup to PR #377.
1496 *) IA-32 assembler support enhancements: unified ELF targets, support
1497 for SCO/Caldera platforms, fix for Cygwin shared build.
1500 *) Add support for FreeBSD on sparc64. As a consequence, support for
1501 FreeBSD on non-x86 processors is separate from x86 processors on
1502 the config script, much like the NetBSD support.
1503 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
1505 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
1507 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
1510 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
1511 code (06) was taken as the first octet of the session ID and the last
1512 octet was ignored consequently. As a result SSLv2 client side session
1513 caching could not have worked due to the session ID mismatch between
1515 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1519 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
1520 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
1524 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
1525 seems that in spite of existing for more than a year, many application
1526 author have done nothing to provide the necessary callbacks, which
1527 means that this particular engine will not work properly anywhere.
1528 This is a very unfortunate situation which forces us, in the name
1529 of usability, to give the hw_ncipher.c a static lock, which is part
1531 NOTE: This is for the 0.9.7 series ONLY. This hack will never
1532 appear in 0.9.8 or later. We EXPECT application authors to have
1533 dealt properly with this when 0.9.8 is released (unless we actually
1534 make such changes in the libcrypto locking code that changes will
1535 have to be made anyway).
1538 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
1539 octets have been read, EOF or an error occurs. Without this change
1540 some truncated ASN1 structures will not produce an error.
1543 *) Disable Heimdal support, since it hasn't been fully implemented.
1544 Still give the possibility to force the use of Heimdal, but with
1545 warnings and a request that patches get sent to openssl-dev.
1548 *) Add the VC-CE target, introduce the WINCE sysname, and add
1549 INSTALL.WCE and appropriate conditionals to make it build.
1550 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1552 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
1553 cygssl-x.y.z.dll, where x, y and z are the major, minor and
1554 edit numbers of the version.
1555 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
1557 *) Introduce safe string copy and catenation functions
1558 (BUF_strlcpy() and BUF_strlcat()).
1559 [Ben Laurie (CHATS) and Richard Levitte]
1561 *) Avoid using fixed-size buffers for one-line DNs.
1562 [Ben Laurie (CHATS)]
1564 *) Add BUF_MEM_grow_clean() to avoid information leakage when
1565 resizing buffers containing secrets, and use where appropriate.
1566 [Ben Laurie (CHATS)]
1568 *) Avoid using fixed size buffers for configuration file location.
1569 [Ben Laurie (CHATS)]
1571 *) Avoid filename truncation for various CA files.
1572 [Ben Laurie (CHATS)]
1574 *) Use sizeof in preference to magic numbers.
1575 [Ben Laurie (CHATS)]
1577 *) Avoid filename truncation in cert requests.
1578 [Ben Laurie (CHATS)]
1580 *) Add assertions to check for (supposedly impossible) buffer
1582 [Ben Laurie (CHATS)]
1584 *) Don't cache truncated DNS entries in the local cache (this could
1585 potentially lead to a spoofing attack).
1586 [Ben Laurie (CHATS)]
1588 *) Fix various buffers to be large enough for hex/decimal
1589 representations in a platform independent manner.
1590 [Ben Laurie (CHATS)]
1592 *) Add CRYPTO_realloc_clean() to avoid information leakage when
1593 resizing buffers containing secrets, and use where appropriate.
1594 [Ben Laurie (CHATS)]
1596 *) Add BIO_indent() to avoid much slightly worrying code to do
1598 [Ben Laurie (CHATS)]
1600 *) Convert sprintf()/BIO_puts() to BIO_printf().
1601 [Ben Laurie (CHATS)]
1603 *) buffer_gets() could terminate with the buffer only half
1605 [Ben Laurie (CHATS)]
1607 *) Add assertions to prevent user-supplied crypto functions from
1608 overflowing internal buffers by having large block sizes, etc.
1609 [Ben Laurie (CHATS)]
1611 *) New OPENSSL_assert() macro (similar to assert(), but enabled
1613 [Ben Laurie (CHATS)]
1615 *) Eliminate unused copy of key in RC4.
1616 [Ben Laurie (CHATS)]
1618 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
1619 [Ben Laurie (CHATS)]
1621 *) Fix off-by-one error in EGD path.
1622 [Ben Laurie (CHATS)]
1624 *) If RANDFILE path is too long, ignore instead of truncating.
1625 [Ben Laurie (CHATS)]
1627 *) Eliminate unused and incorrectly sized X.509 structure
1629 [Ben Laurie (CHATS)]
1631 *) Eliminate unused and dangerous function knumber().
1632 [Ben Laurie (CHATS)]
1634 *) Eliminate unused and dangerous structure, KSSL_ERR.
1635 [Ben Laurie (CHATS)]
1637 *) Protect against overlong session ID context length in an encoded
1638 session object. Since these are local, this does not appear to be
1640 [Ben Laurie (CHATS)]
1642 *) Change from security patch (see 0.9.6e below) that did not affect
1643 the 0.9.6 release series:
1645 Remote buffer overflow in SSL3 protocol - an attacker could
1646 supply an oversized master key in Kerberos-enabled versions.
1648 [Ben Laurie (CHATS)]
1650 *) Change the SSL kerb5 codes to match RFC 2712.
1653 *) Make -nameopt work fully for req and add -reqopt switch.
1654 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
1656 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
1657 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
1659 *) Make sure tests can be performed even if the corresponding algorithms
1660 have been removed entirely. This was also the last step to make
1661 OpenSSL compilable with DJGPP under all reasonable conditions.
1662 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
1664 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
1665 to allow version independent disabling of normally unselected ciphers,
1666 which may be activated as a side-effect of selecting a single cipher.
1668 (E.g., cipher list string "RSA" enables ciphersuites that are left
1669 out of "ALL" because they do not provide symmetric encryption.
1670 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
1671 [Lutz Jaenicke, Bodo Moeller]
1673 *) Add appropriate support for separate platform-dependent build
1674 directories. The recommended way to make a platform-dependent
1675 build directory is the following (tested on Linux), maybe with
1678 # Place yourself outside of the OpenSSL source tree. In
1679 # this example, the environment variable OPENSSL_SOURCE
1680 # is assumed to contain the absolute OpenSSL source directory.
1681 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
1682 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
1683 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
1684 mkdir -p `dirname $F`
1685 ln -s $OPENSSL_SOURCE/$F $F
1688 To be absolutely sure not to disturb the source tree, a "make clean"
1689 is a good thing. If it isn't successfull, don't worry about it,
1690 it probably means the source directory is very clean.
1693 *) Make sure any ENGINE control commands make local copies of string
1694 pointers passed to them whenever necessary. Otherwise it is possible
1695 the caller may have overwritten (or deallocated) the original string
1696 data when a later ENGINE operation tries to use the stored values.
1697 [Götz Babin-Ebell <babinebell@trustcenter.de>]
1699 *) Improve diagnostics in file reading and command-line digests.
1700 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
1702 *) Add AES modes CFB and OFB to the object database. Correct an
1703 error in AES-CFB decryption.
1706 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
1707 allows existing EVP_CIPHER_CTX structures to be reused after
1708 calling EVP_*Final(). This behaviour is used by encryption
1709 BIOs and some applications. This has the side effect that
1710 applications must explicitly clean up cipher contexts with
1711 EVP_CIPHER_CTX_cleanup() or they will leak memory.
1714 *) Check the values of dna and dnb in bn_mul_recursive before calling
1715 bn_mul_comba (a non zero value means the a or b arrays do not contain
1716 n2 elements) and fallback to bn_mul_normal if either is not zero.
1719 *) Fix escaping of non-ASCII characters when using the -subj option
1720 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
1723 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
1724 form for "surname", serialNumber has no short form.
1725 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
1726 therefore remove "mail" short name for "internet 7".
1727 The OID for unique identifiers in X509 certificates is
1728 x500UniqueIdentifier, not uniqueIdentifier.
1729 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
1732 *) Add an "init" command to the ENGINE config module and auto initialize
1733 ENGINEs. Without any "init" command the ENGINE will be initialized
1734 after all ctrl commands have been executed on it. If init=1 the
1735 ENGINE is initailized at that point (ctrls before that point are run
1736 on the uninitialized ENGINE and after on the initialized one). If
1737 init=0 then the ENGINE will not be iniatialized at all.
1740 *) Fix the 'app_verify_callback' interface so that the user-defined
1741 argument is actually passed to the callback: In the
1742 SSL_CTX_set_cert_verify_callback() prototype, the callback
1743 declaration has been changed from
1746 int (*cb)(X509_STORE_CTX *,void *);
1747 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
1748 i=s->ctx->app_verify_callback(&ctx)
1749 has been changed into
1750 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
1752 To update applications using SSL_CTX_set_cert_verify_callback(),
1753 a dummy argument can be added to their callback functions.
1754 [D. K. Smetters <smetters@parc.xerox.com>]
1756 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
1757 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
1759 *) Add and OPENSSL_LOAD_CONF define which will cause
1760 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
1761 This allows older applications to transparently support certain
1762 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
1763 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
1764 load the config file and OPENSSL_add_all_algorithms_conf() which will
1765 always load it have also been added.
1768 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
1769 Adjust NIDs and EVP layer.
1770 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
1772 *) Config modules support in openssl utility.
1774 Most commands now load modules from the config file,
1775 though in a few (such as version) this isn't done
1776 because it couldn't be used for anything.
1778 In the case of ca and req the config file used is
1779 the same as the utility itself: that is the -config
1780 command line option can be used to specify an
1784 *) Move default behaviour from OPENSSL_config(). If appname is NULL
1785 use "openssl_conf" if filename is NULL use default openssl config file.
1788 *) Add an argument to OPENSSL_config() to allow the use of an alternative
1789 config section name. Add a new flag to tolerate a missing config file
1790 and move code to CONF_modules_load_file().
1793 *) Support for crypto accelerator cards from Accelerated Encryption
1794 Processing, www.aep.ie. (Use engine 'aep')
1795 The support was copied from 0.9.6c [engine] and adapted/corrected
1796 to work with the new engine framework.
1797 [AEP Inc. and Richard Levitte]
1799 *) Support for SureWare crypto accelerator cards from Baltimore
1800 Technologies. (Use engine 'sureware')
1801 The support was copied from 0.9.6c [engine] and adapted
1802 to work with the new engine framework.
1805 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
1806 make the newer ENGINE framework commands for the CHIL engine work.
1807 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
1809 *) Make it possible to produce shared libraries on ReliantUNIX.
1810 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
1812 *) Add the configuration target debug-linux-ppro.
1813 Make 'openssl rsa' use the general key loading routines
1814 implemented in apps.c, and make those routines able to
1815 handle the key format FORMAT_NETSCAPE and the variant
1817 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
1819 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
1820 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
1822 *) Add -keyform to rsautl, and document -engine.
1823 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
1825 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
1826 BIO_R_NO_SUCH_FILE error code rather than the generic
1827 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
1830 *) Add new functions
1832 ERR_peek_last_error_line
1833 ERR_peek_last_error_line_data.
1834 These are similar to
1837 ERR_peek_error_line_data,
1838 but report on the latest error recorded rather than the first one
1839 still in the error queue.
1840 [Ben Laurie, Bodo Moeller]
1842 *) default_algorithms option in ENGINE config module. This allows things
1844 default_algorithms = ALL
1845 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
1848 *) Prelminary ENGINE config module.
1851 *) New experimental application configuration code.
1854 *) Change the AES code to follow the same name structure as all other
1855 symmetric ciphers, and behave the same way. Move everything to
1856 the directory crypto/aes, thereby obsoleting crypto/rijndael.
1857 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
1859 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
1860 [Ben Laurie and Theo de Raadt]
1862 *) Add option to output public keys in req command.
1863 [Massimiliano Pala madwolf@openca.org]
1865 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
1866 (up to about 10% better than before for P-192 and P-224).
1869 *) New functions/macros
1871 SSL_CTX_set_msg_callback(ctx, cb)
1872 SSL_CTX_set_msg_callback_arg(ctx, arg)
1873 SSL_set_msg_callback(ssl, cb)
1874 SSL_set_msg_callback_arg(ssl, arg)
1876 to request calling a callback function
1878 void cb(int write_p, int version, int content_type,
1879 const void *buf, size_t len, SSL *ssl, void *arg)
1881 whenever a protocol message has been completely received
1882 (write_p == 0) or sent (write_p == 1). Here 'version' is the
1883 protocol version according to which the SSL library interprets
1884 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
1885 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
1886 the content type as defined in the SSL 3.0/TLS 1.0 protocol
1887 specification (change_cipher_spec(20), alert(21), handshake(22)).
1888 'buf' and 'len' point to the actual message, 'ssl' to the
1889 SSL object, and 'arg' is the application-defined value set by
1890 SSL[_CTX]_set_msg_callback_arg().
1892 'openssl s_client' and 'openssl s_server' have new '-msg' options
1893 to enable a callback that displays all protocol messages.
1896 *) Change the shared library support so shared libraries are built as
1897 soon as the corresponding static library is finished, and thereby get
1898 openssl and the test programs linked against the shared library.
1899 This still only happens when the keyword "shard" has been given to
1900 the configuration scripts.
1902 NOTE: shared library support is still an experimental thing, and
1903 backward binary compatibility is still not guaranteed.
1904 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
1906 *) Add support for Subject Information Access extension.
1907 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1909 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
1910 additional bytes when new memory had to be allocated, not just
1911 when reusing an existing buffer.
1914 *) New command line and configuration option 'utf8' for the req command.
1915 This allows field values to be specified as UTF8 strings.
1918 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
1919 runs for the former and machine-readable output for the latter.
1922 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
1923 of the e-mail address in the DN (i.e., it will go into a certificate
1924 extension only). The new configuration file option 'email_in_dn = no'
1925 has the same effect.
1926 [Massimiliano Pala madwolf@openca.org]
1928 *) Change all functions with names starting with des_ to be starting
1929 with DES_ instead. Add wrappers that are compatible with libdes,
1930 but are named _ossl_old_des_*. Finally, add macros that map the
1931 des_* symbols to the corresponding _ossl_old_des_* if libdes
1932 compatibility is desired. If OpenSSL 0.9.6c compatibility is
1933 desired, the des_* symbols will be mapped to DES_*, with one
1936 Since we provide two compatibility mappings, the user needs to
1937 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
1938 compatibility is desired. The default (i.e., when that macro
1939 isn't defined) is OpenSSL 0.9.6c compatibility.
1941 There are also macros that enable and disable the support of old
1942 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
1943 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
1944 are defined, the default will apply: to support the old des routines.
1946 In either case, one must include openssl/des.h to get the correct
1947 definitions. Do not try to just include openssl/des_old.h, that
1950 NOTE: This is a major break of an old API into a new one. Software
1951 authors are encouraged to switch to the DES_ style functions. Some
1952 time in the future, des_old.h and the libdes compatibility functions
1953 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
1954 default), and then completely removed.
1957 *) Test for certificates which contain unsupported critical extensions.
1958 If such a certificate is found during a verify operation it is
1959 rejected by default: this behaviour can be overridden by either
1960 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
1961 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
1962 X509_supported_extension() has also been added which returns 1 if a
1963 particular extension is supported.
1966 *) Modify the behaviour of EVP cipher functions in similar way to digests
1967 to retain compatibility with existing code.
1970 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
1971 compatibility with existing code. In particular the 'ctx' parameter does
1972 not have to be to be initialized before the call to EVP_DigestInit() and
1973 it is tidied up after a call to EVP_DigestFinal(). New function
1974 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
1975 EVP_MD_CTX_copy() changed to not require the destination to be
1976 initialized valid and new function EVP_MD_CTX_copy_ex() added which
1977 requires the destination to be valid.
1979 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
1980 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
1983 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
1984 so that complete 'Handshake' protocol structures are kept in memory
1985 instead of overwriting 'msg_type' and 'length' with 'body' data.
1988 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
1989 [Massimo Santin via Richard Levitte]
1991 *) Major restructuring to the underlying ENGINE code. This includes
1992 reduction of linker bloat, separation of pure "ENGINE" manipulation
1993 (initialisation, etc) from functionality dealing with implementations
1994 of specific crypto iterfaces. This change also introduces integrated
1995 support for symmetric ciphers and digest implementations - so ENGINEs
1996 can now accelerate these by providing EVP_CIPHER and EVP_MD
1997 implementations of their own. This is detailed in crypto/engine/README
1998 as it couldn't be adequately described here. However, there are a few
1999 API changes worth noting - some RSA, DSA, DH, and RAND functions that
2000 were changed in the original introduction of ENGINE code have now
2001 reverted back - the hooking from this code to ENGINE is now a good
2002 deal more passive and at run-time, operations deal directly with
2003 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
2004 dereferencing through an ENGINE pointer any more. Also, the ENGINE
2005 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
2006 they were not being used by the framework as there is no concept of a
2007 BIGNUM_METHOD and they could not be generalised to the new
2008 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
2009 ENGINE_cpy() has been removed as it cannot be consistently defined in
2013 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
2016 *) Change mkdef.pl to sort symbols that get the same entry number,
2017 and make sure the automatically generated functions ERR_load_*
2018 become part of libeay.num as well.
2021 *) New function SSL_renegotiate_pending(). This returns true once
2022 renegotiation has been requested (either SSL_renegotiate() call
2023 or HelloRequest/ClientHello receveived from the peer) and becomes
2024 false once a handshake has been completed.
2025 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
2026 sends a HelloRequest, but does not ensure that a handshake takes
2027 place. SSL_renegotiate_pending() is useful for checking if the
2028 client has followed the request.)
2031 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
2032 By default, clients may request session resumption even during
2033 renegotiation (if session ID contexts permit); with this option,
2034 session resumption is possible only in the first handshake.
2036 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
2037 more bits available for options that should not be part of
2038 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
2041 *) Add some demos for certificate and certificate request creation.
2044 *) Make maximum certificate chain size accepted from the peer application
2045 settable (SSL*_get/set_max_cert_list()), as proposed by
2046 "Douglas E. Engert" <deengert@anl.gov>.
2049 *) Add support for shared libraries for Unixware-7
2050 (Boyd Lynn Gerber <gerberb@zenez.com>).
2053 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
2054 be done prior to destruction. Use this to unload error strings from
2055 ENGINEs that load their own error strings. NB: This adds two new API
2056 functions to "get" and "set" this destroy handler in an ENGINE.
2059 *) Alter all existing ENGINE implementations (except "openssl" and
2060 "openbsd") to dynamically instantiate their own error strings. This
2061 makes them more flexible to be built both as statically-linked ENGINEs
2062 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
2063 Also, add stub code to each that makes building them as self-contained
2064 shared-libraries easier (see README.ENGINE).
2067 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
2068 implementations into applications that are completely implemented in
2069 self-contained shared-libraries. The "dynamic" ENGINE exposes control
2070 commands that can be used to configure what shared-library to load and
2071 to control aspects of the way it is handled. Also, made an update to
2072 the README.ENGINE file that brings its information up-to-date and
2073 provides some information and instructions on the "dynamic" ENGINE
2074 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
2077 *) Make it possible to unload ranges of ERR strings with a new
2078 "ERR_unload_strings" function.
2081 *) Add a copy() function to EVP_MD.
2084 *) Make EVP_MD routines take a context pointer instead of just the
2085 md_data void pointer.
2088 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
2089 that the digest can only process a single chunk of data
2090 (typically because it is provided by a piece of
2091 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
2092 is only going to provide a single chunk of data, and hence the
2093 framework needn't accumulate the data for oneshot drivers.
2096 *) As with "ERR", make it possible to replace the underlying "ex_data"
2097 functions. This change also alters the storage and management of global
2098 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
2099 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
2100 index counters. The API functions that use this state have been changed
2101 to take a "class_index" rather than pointers to the class's local STACK
2102 and counter, and there is now an API function to dynamically create new
2103 classes. This centralisation allows us to (a) plug a lot of the
2104 thread-safety problems that existed, and (b) makes it possible to clean
2105 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
2106 such data would previously have always leaked in application code and
2107 workarounds were in place to make the memory debugging turn a blind eye
2108 to it. Application code that doesn't use this new function will still
2109 leak as before, but their memory debugging output will announce it now
2110 rather than letting it slide.
2112 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
2113 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
2114 has a return value to indicate success or failure.
2117 *) Make it possible to replace the underlying "ERR" functions such that the
2118 global state (2 LHASH tables and 2 locks) is only used by the "default"
2119 implementation. This change also adds two functions to "get" and "set"
2120 the implementation prior to it being automatically set the first time
2121 any other ERR function takes place. Ie. an application can call "get",
2122 pass the return value to a module it has just loaded, and that module
2123 can call its own "set" function using that value. This means the
2124 module's "ERR" operations will use (and modify) the error state in the
2125 application and not in its own statically linked copy of OpenSSL code.
2128 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
2129 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
2130 the operation, and provides a more encapsulated way for external code
2131 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
2132 to use these functions rather than manually incrementing the counts.
2134 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
2137 *) Add EVP test program.
2140 *) Add symmetric cipher support to ENGINE. Expect the API to change!
2143 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
2144 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
2145 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
2146 These allow a CRL to be built without having to access X509_CRL fields
2147 directly. Modify 'ca' application to use new functions.
2150 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
2151 bug workarounds. Rollback attack detection is a security feature.
2152 The problem will only arise on OpenSSL servers when TLSv1 is not
2153 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
2154 Software authors not wanting to support TLSv1 will have special reasons
2155 for their choice and can explicitly enable this option.
2156 [Bodo Moeller, Lutz Jaenicke]
2158 *) Rationalise EVP so it can be extended: don't include a union of
2159 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
2160 (similar to those existing for EVP_CIPHER_CTX).
2165 EVP_MD_CTX_init(&md); /* new function call */
2166 EVP_DigestInit(&md, EVP_sha1());
2167 EVP_DigestUpdate(&md, in, len);
2168 EVP_DigestFinal(&md, out, NULL);
2169 EVP_MD_CTX_cleanup(&md); /* new function call */
2173 *) Make DES key schedule conform to the usual scheme, as well as
2174 correcting its structure. This means that calls to DES functions
2175 now have to pass a pointer to a des_key_schedule instead of a
2176 plain des_key_schedule (which was actually always a pointer
2179 des_key_schedule ks;
2181 des_set_key_checked(..., &ks);
2182 des_ncbc_encrypt(..., &ks, ...);
2184 (Note that a later change renames 'des_...' into 'DES_...'.)
2187 *) Initial reduction of linker bloat: the use of some functions, such as
2188 PEM causes large amounts of unused functions to be linked in due to
2189 poor organisation. For example pem_all.c contains every PEM function
2190 which has a knock on effect of linking in large amounts of (unused)
2191 ASN1 code. Grouping together similar functions and splitting unrelated
2192 functions prevents this.
2195 *) Cleanup of EVP macros.
2198 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
2199 correct _ecb suffix.
2202 *) Add initial OCSP responder support to ocsp application. The
2203 revocation information is handled using the text based index
2204 use by the ca application. The responder can either handle
2205 requests generated internally, supplied in files (for example
2206 via a CGI script) or using an internal minimal server.
2209 *) Add configuration choices to get zlib compression for TLS.
2212 *) Changes to Kerberos SSL for RFC 2712 compliance:
2213 1. Implemented real KerberosWrapper, instead of just using
2214 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
2215 2. Implemented optional authenticator field of KerberosWrapper.
2217 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
2218 and authenticator structs; see crypto/krb5/.
2220 Generalized Kerberos calls to support multiple Kerberos libraries.
2221 [Vern Staats <staatsvr@asc.hpc.mil>,
2222 Jeffrey Altman <jaltman@columbia.edu>
2223 via Richard Levitte]
2225 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
2226 already does with RSA. testdsa.h now has 'priv_key/pub_key'
2227 values for each of the key sizes rather than having just
2228 parameters (and 'speed' generating keys each time).
2231 *) Speed up EVP routines.
2234 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
2235 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
2236 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
2237 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
2239 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
2240 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
2241 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
2244 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
2246 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
2249 *) Added the OS2-EMX target.
2250 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
2252 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
2253 to support NCONF routines in extension code. New function CONF_set_nconf()
2254 to allow functions which take an NCONF to also handle the old LHASH
2255 structure: this means that the old CONF compatible routines can be
2256 retained (in particular wrt extensions) without having to duplicate the
2257 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
2260 *) Enhance the general user interface with mechanisms for inner control
2261 and with possibilities to have yes/no kind of prompts.
2264 *) Change all calls to low level digest routines in the library and
2265 applications to use EVP. Add missing calls to HMAC_cleanup() and
2266 don't assume HMAC_CTX can be copied using memcpy().
2267 [Verdon Walker <VWalker@novell.com>, Steve Henson]
2269 *) Add the possibility to control engines through control names but with
2270 arbitrary arguments instead of just a string.
2271 Change the key loaders to take a UI_METHOD instead of a callback
2272 function pointer. NOTE: this breaks binary compatibility with earlier
2273 versions of OpenSSL [engine].
2274 Adapt the nCipher code for these new conditions and add a card insertion
2278 *) Enhance the general user interface with mechanisms to better support
2279 dialog box interfaces, application-defined prompts, the possibility
2280 to use defaults (for example default passwords from somewhere else)
2281 and interrupts/cancellations.
2284 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
2285 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
2288 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
2289 tidy up some unnecessarily weird code in 'sk_new()').
2290 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
2292 *) Change the key loading routines for ENGINEs to use the same kind
2293 callback (pem_password_cb) as all other routines that need this
2297 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
2298 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
2299 than this minimum value is recommended.
2302 *) New random seeder for OpenVMS, using the system process statistics
2303 that are easily reachable.
2306 *) Windows apparently can't transparently handle global
2307 variables defined in DLLs. Initialisations such as:
2309 const ASN1_ITEM *it = &ASN1_INTEGER_it;
2311 wont compile. This is used by the any applications that need to
2312 declare their own ASN1 modules. This was fixed by adding the option
2313 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
2314 needed for static libraries under Win32.
2317 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
2318 setting of purpose and trust fields. New X509_STORE trust and
2319 purpose functions and tidy up setting in other SSL functions.
2322 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
2323 structure. These are inherited by X509_STORE_CTX when it is
2324 initialised. This allows various defaults to be set in the
2325 X509_STORE structure (such as flags for CRL checking and custom
2326 purpose or trust settings) for functions which only use X509_STORE_CTX
2327 internally such as S/MIME.
2329 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
2330 trust settings if they are not set in X509_STORE. This allows X509_STORE
2331 purposes and trust (in S/MIME for example) to override any set by default.
2333 Add command line options for CRL checking to smime, s_client and s_server
2337 *) Initial CRL based revocation checking. If the CRL checking flag(s)
2338 are set then the CRL is looked up in the X509_STORE structure and
2339 its validity and signature checked, then if the certificate is found
2340 in the CRL the verify fails with a revoked error.
2342 Various new CRL related callbacks added to X509_STORE_CTX structure.
2344 Command line options added to 'verify' application to support this.
2346 This needs some additional work, such as being able to handle multiple
2347 CRLs with different times, extension based lookup (rather than just
2348 by subject name) and ultimately more complete V2 CRL extension
2352 *) Add a general user interface API (crypto/ui/). This is designed
2353 to replace things like des_read_password and friends (backward
2354 compatibility functions using this new API are provided).
2355 The purpose is to remove prompting functions from the DES code
2356 section as well as provide for prompting through dialog boxes in
2357 a window system and the like.
2360 *) Add "ex_data" support to ENGINE so implementations can add state at a
2361 per-structure level rather than having to store it globally.
2364 *) Make it possible for ENGINE structures to be copied when retrieved by
2365 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
2366 This causes the "original" ENGINE structure to act like a template,
2367 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
2368 operational state can be localised to each ENGINE structure, despite the
2369 fact they all share the same "methods". New ENGINE structures returned in
2370 this case have no functional references and the return value is the single
2371 structural reference. This matches the single structural reference returned
2372 by ENGINE_by_id() normally, when it is incremented on the pre-existing
2376 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
2377 needs to match any other type at all we need to manually clear the
2381 *) Changes to the "openssl engine" utility to include;
2382 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
2383 about an ENGINE's available control commands.
2384 - executing control commands from command line arguments using the
2385 '-pre' and '-post' switches. '-post' is only used if '-t' is
2386 specified and the ENGINE is successfully initialised. The syntax for
2387 the individual commands are colon-separated, for example;
2388 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
2391 *) New dynamic control command support for ENGINEs. ENGINEs can now
2392 declare their own commands (numbers), names (strings), descriptions,
2393 and input types for run-time discovery by calling applications. A
2394 subset of these commands are implicitly classed as "executable"
2395 depending on their input type, and only these can be invoked through
2396 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
2397 can be based on user input, config files, etc). The distinction is
2398 that "executable" commands cannot return anything other than a boolean
2399 result and can only support numeric or string input, whereas some
2400 discoverable commands may only be for direct use through
2401 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
2402 pointers, or other custom uses. The "executable" commands are to
2403 support parameterisations of ENGINE behaviour that can be
2404 unambiguously defined by ENGINEs and used consistently across any
2405 OpenSSL-based application. Commands have been added to all the
2406 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
2407 control over shared-library paths without source code alterations.
2410 *) Changed all ENGINE implementations to dynamically allocate their
2411 ENGINEs rather than declaring them statically. Apart from this being
2412 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
2413 this also allows the implementations to compile without using the
2414 internal engine_int.h header.
2417 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
2418 'const' value. Any code that should be able to modify a RAND_METHOD
2419 should already have non-const pointers to it (ie. they should only
2420 modify their own ones).
2423 *) Made a variety of little tweaks to the ENGINE code.
2424 - "atalla" and "ubsec" string definitions were moved from header files
2425 to C code. "nuron" string definitions were placed in variables
2426 rather than hard-coded - allowing parameterisation of these values
2427 later on via ctrl() commands.
2428 - Removed unused "#if 0"'d code.
2429 - Fixed engine list iteration code so it uses ENGINE_free() to release
2430 structural references.
2431 - Constified the RAND_METHOD element of ENGINE structures.
2432 - Constified various get/set functions as appropriate and added
2433 missing functions (including a catch-all ENGINE_cpy that duplicates
2434 all ENGINE values onto a new ENGINE except reference counts/state).
2435 - Removed NULL parameter checks in get/set functions. Setting a method
2436 or function to NULL is a way of cancelling out a previously set
2437 value. Passing a NULL ENGINE parameter is just plain stupid anyway
2438 and doesn't justify the extra error symbols and code.
2439 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
2440 flags from engine_int.h to engine.h.
2441 - Changed prototypes for ENGINE handler functions (init(), finish(),
2442 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
2445 *) Implement binary inversion algorithm for BN_mod_inverse in addition
2446 to the algorithm using long division. The binary algorithm can be
2447 used only if the modulus is odd. On 32-bit systems, it is faster
2448 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
2449 roughly 5-15% for 256-bit moduli), so we use it only for moduli
2450 up to 450 bits. In 64-bit environments, the binary algorithm
2451 appears to be advantageous for much longer moduli; here we use it
2452 for moduli up to 2048 bits.
2455 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
2456 could not support the combine flag in choice fields.
2459 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
2460 extensions from a certificate request to the certificate.
2463 *) Allow multiple 'certopt' and 'nameopt' options to be separated
2464 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
2465 file: this allows the display of the certificate about to be
2466 signed to be customised, to allow certain fields to be included
2467 or excluded and extension details. The old system didn't display
2468 multicharacter strings properly, omitted fields not in the policy
2469 and couldn't display additional details such as extensions.
2472 *) Function EC_POINTs_mul for multiple scalar multiplication
2473 of an arbitrary number of elliptic curve points
2474 \sum scalars[i]*points[i],
2475 optionally including the generator defined for the EC_GROUP:
2476 scalar*generator + \sum scalars[i]*points[i].
2478 EC_POINT_mul is a simple wrapper function for the typical case
2479 that the point list has just one item (besides the optional
2483 *) First EC_METHODs for curves over GF(p):
2485 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
2486 operations and provides various method functions that can also
2487 operate with faster implementations of modular arithmetic.
2489 EC_GFp_mont_method() reuses most functions that are part of
2490 EC_GFp_simple_method, but uses Montgomery arithmetic.
2492 [Bodo Moeller; point addition and point doubling
2493 implementation directly derived from source code provided by
2494 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
2496 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
2497 crypto/ec/ec_lib.c):
2499 Curves are EC_GROUP objects (with an optional group generator)
2500 based on EC_METHODs that are built into the library.
2502 Points are EC_POINT objects based on EC_GROUP objects.
2504 Most of the framework would be able to handle curves over arbitrary
2505 finite fields, but as there are no obvious types for fields other
2506 than GF(p), some functions are limited to that for now.
2509 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
2510 that the file contains a complete HTTP response.
2513 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
2514 change the def and num file printf format specifier from "%-40sXXX"
2515 to "%-39s XXX". The latter will always guarantee a space after the
2516 field while the former will cause them to run together if the field
2517 is 40 of more characters long.
2520 *) Constify the cipher and digest 'method' functions and structures
2521 and modify related functions to take constant EVP_MD and EVP_CIPHER
2525 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
2526 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
2529 *) Modify EVP_Digest*() routines so they now return values. Although the
2530 internal software routines can never fail additional hardware versions
2534 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
2536 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
2537 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
2540 ERR_R_NESTED_ASN1_ERROR
2542 ERR_R_MISSING_ASN1_EOS
2543 were 4 .. 9, conflicting with
2544 ERR_LIB_RSA (= ERR_R_RSA_LIB)
2546 ERR_LIB_PEM (= ERR_R_PEM_LIB).
2547 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
2549 Add new error code 'ERR_R_INTERNAL_ERROR'.
2552 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
2556 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
2557 sets the subject name for a new request or supersedes the
2558 subject name in a given request. Formats that can be parsed are
2559 'CN=Some Name, OU=myOU, C=IT'
2561 'CN=Some Name/OU=myOU/C=IT'.
2563 Add options '-batch' and '-verbose' to 'openssl req'.
2564 [Massimiliano Pala <madwolf@hackmasters.net>]
2566 *) Introduce the possibility to access global variables through
2567 functions on platform were that's the best way to handle exporting
2568 global variables in shared libraries. To enable this functionality,
2569 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
2570 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
2571 is normally done by Configure or something similar).
2573 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
2574 in the source file (foo.c) like this:
2576 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
2577 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
2579 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
2580 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
2582 OPENSSL_DECLARE_GLOBAL(int,foo);
2583 #define foo OPENSSL_GLOBAL_REF(foo)
2584 OPENSSL_DECLARE_GLOBAL(double,bar);
2585 #define bar OPENSSL_GLOBAL_REF(bar)
2587 The #defines are very important, and therefore so is including the
2588 header file everywhere where the defined globals are used.
2590 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
2591 of ASN.1 items, but that structure is a bit different.
2593 The largest change is in util/mkdef.pl which has been enhanced with
2594 better and easier to understand logic to choose which symbols should
2595 go into the Windows .def files as well as a number of fixes and code
2596 cleanup (among others, algorithm keywords are now sorted
2597 lexicographically to avoid constant rewrites).
2600 *) In BN_div() keep a copy of the sign of 'num' before writing the
2601 result to 'rm' because if rm==num the value will be overwritten
2602 and produce the wrong result if 'num' is negative: this caused
2603 problems with BN_mod() and BN_nnmod().
2606 *) Function OCSP_request_verify(). This checks the signature on an
2607 OCSP request and verifies the signer certificate. The signer
2608 certificate is just checked for a generic purpose and OCSP request
2612 *) Add OCSP_check_validity() function to check the validity of OCSP
2613 responses. OCSP responses are prepared in real time and may only
2614 be a few seconds old. Simply checking that the current time lies
2615 between thisUpdate and nextUpdate max reject otherwise valid responses
2616 caused by either OCSP responder or client clock inaccuracy. Instead
2617 we allow thisUpdate and nextUpdate to fall within a certain period of
2618 the current time. The age of the response can also optionally be
2619 checked. Two new options -validity_period and -status_age added to
2623 *) If signature or public key algorithm is unrecognized print out its
2624 OID rather that just UNKNOWN.
2627 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
2628 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
2629 ID to be generated from the issuer certificate alone which can then be
2630 passed to OCSP_id_issuer_cmp().
2633 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
2634 ASN1 modules to export functions returning ASN1_ITEM pointers
2635 instead of the ASN1_ITEM structures themselves. This adds several
2636 new macros which allow the underlying ASN1 function/structure to
2637 be accessed transparently. As a result code should not use ASN1_ITEM
2638 references directly (such as &X509_it) but instead use the relevant
2639 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
2640 use of the new ASN1 code on platforms where exporting structures
2641 is problematical (for example in shared libraries) but exporting
2642 functions returning pointers to structures is not.
2645 *) Add support for overriding the generation of SSL/TLS session IDs.
2646 These callbacks can be registered either in an SSL_CTX or per SSL.
2647 The purpose of this is to allow applications to control, if they wish,
2648 the arbitrary values chosen for use as session IDs, particularly as it
2649 can be useful for session caching in multiple-server environments. A
2650 command-line switch for testing this (and any client code that wishes
2651 to use such a feature) has been added to "s_server".
2652 [Geoff Thorpe, Lutz Jaenicke]
2654 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
2655 of the form '#if defined(...) || defined(...) || ...' and
2656 '#if !defined(...) && !defined(...) && ...'. This also avoids
2657 the growing number of special cases it was previously handling.
2660 *) Make all configuration macros available for application by making
2661 sure they are available in opensslconf.h, by giving them names starting
2662 with "OPENSSL_" to avoid conflicts with other packages and by making
2663 sure e_os2.h will cover all platform-specific cases together with
2665 Additionally, it is now possible to define configuration/platform-
2666 specific names (called "system identities"). In the C code, these
2667 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
2668 macro with the name beginning with "OPENSSL_SYS_", which is determined
2669 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
2673 *) New option -set_serial to 'req' and 'x509' this allows the serial
2674 number to use to be specified on the command line. Previously self
2675 signed certificates were hard coded with serial number 0 and the
2676 CA options of 'x509' had to use a serial number in a file which was
2680 *) New options to 'ca' utility to support V2 CRL entry extensions.
2681 Currently CRL reason, invalidity date and hold instruction are
2682 supported. Add new CRL extensions to V3 code and some new objects.
2685 *) New function EVP_CIPHER_CTX_set_padding() this is used to
2686 disable standard block padding (aka PKCS#5 padding) in the EVP
2687 API, which was previously mandatory. This means that the data is
2688 not padded in any way and so the total length much be a multiple
2689 of the block size, otherwise an error occurs.
2692 *) Initial (incomplete) OCSP SSL support.
2695 *) New function OCSP_parse_url(). This splits up a URL into its host,
2696 port and path components: primarily to parse OCSP URLs. New -url
2697 option to ocsp utility.
2700 *) New nonce behavior. The return value of OCSP_check_nonce() now
2701 reflects the various checks performed. Applications can decide
2702 whether to tolerate certain situations such as an absent nonce
2703 in a response when one was present in a request: the ocsp application
2704 just prints out a warning. New function OCSP_add1_basic_nonce()
2705 this is to allow responders to include a nonce in a response even if
2706 the request is nonce-less.
2709 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
2710 skipped when using openssl x509 multiple times on a single input file,
2711 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
2714 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
2715 set string type: to handle setting ASN1_TIME structures. Fix ca
2716 utility to correctly initialize revocation date of CRLs.
2719 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
2720 the clients preferred ciphersuites and rather use its own preferences.
2721 Should help to work around M$ SGC (Server Gated Cryptography) bug in
2722 Internet Explorer by ensuring unchanged hash method during stepup.
2723 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
2726 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
2727 to aes and add a new 'exist' option to print out symbols that don't
2731 *) Additional options to ocsp utility to allow flags to be set and
2732 additional certificates supplied.
2735 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
2736 OCSP client a number of certificate to only verify the response
2740 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
2741 handle the new API. Currently only ECB, CBC modes supported. Add new
2744 Add TLS AES ciphersuites as described in RFC3268, "Advanced
2745 Encryption Standard (AES) Ciphersuites for Transport Layer
2746 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
2747 not enabled by default and were not part of the "ALL" ciphersuite
2748 alias because they were not yet official; they could be
2749 explicitly requested by specifying the "AESdraft" ciphersuite
2750 group alias. In the final release of OpenSSL 0.9.7, the group
2751 alias is called "AES" and is part of "ALL".)
2752 [Ben Laurie, Steve Henson, Bodo Moeller]
2754 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
2755 request to response.
2758 *) Functions for OCSP responders. OCSP_request_onereq_count(),
2759 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
2760 extract information from a certificate request. OCSP_response_create()
2761 creates a response and optionally adds a basic response structure.
2762 OCSP_basic_add1_status() adds a complete single response to a basic
2763 response and returns the OCSP_SINGLERESP structure just added (to allow
2764 extensions to be included for example). OCSP_basic_add1_cert() adds a
2765 certificate to a basic response and OCSP_basic_sign() signs a basic
2766 response with various flags. New helper functions ASN1_TIME_check()
2767 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
2768 (converts ASN1_TIME to GeneralizedTime).
2771 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
2772 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
2773 structure from a certificate. X509_pubkey_digest() digests the public_key
2774 contents: this is used in various key identifiers.
2777 *) Make sk_sort() tolerate a NULL argument.
2778 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
2780 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
2781 passed by the function are trusted implicitly. If any of them signed the
2782 response then it is assumed to be valid and is not verified.
2785 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
2786 to data. This was previously part of the PKCS7 ASN1 code. This
2787 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
2788 [Steve Henson, reported by Kenneth R. Robinette
2789 <support@securenetterm.com>]
2791 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
2792 routines: without these tracing memory leaks is very painful.
2793 Fix leaks in PKCS12 and PKCS7 routines.
2796 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
2797 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
2798 effectively meant GeneralizedTime would never be used. Now it
2799 is initialised to -1 but X509_time_adj() now has to check the value
2800 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
2801 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
2802 [Steve Henson, reported by Kenneth R. Robinette
2803 <support@securenetterm.com>]
2805 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
2806 result in a zero length in the ASN1_INTEGER structure which was
2807 not consistent with the structure when d2i_ASN1_INTEGER() was used
2808 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
2809 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
2810 where it did not print out a minus for negative ASN1_INTEGER.
2813 *) Add summary printout to ocsp utility. The various functions which
2814 convert status values to strings have been renamed to:
2815 OCSP_response_status_str(), OCSP_cert_status_str() and
2816 OCSP_crl_reason_str() and are no longer static. New options
2817 to verify nonce values and to disable verification. OCSP response
2818 printout format cleaned up.
2821 *) Add additional OCSP certificate checks. These are those specified
2822 in RFC2560. This consists of two separate checks: the CA of the
2823 certificate being checked must either be the OCSP signer certificate
2824 or the issuer of the OCSP signer certificate. In the latter case the
2825 OCSP signer certificate must contain the OCSP signing extended key
2826 usage. This check is performed by attempting to match the OCSP
2827 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
2828 in the OCSP_CERTID structures of the response.
2831 *) Initial OCSP certificate verification added to OCSP_basic_verify()
2832 and related routines. This uses the standard OpenSSL certificate
2833 verify routines to perform initial checks (just CA validity) and
2834 to obtain the certificate chain. Then additional checks will be
2835 performed on the chain. Currently the root CA is checked to see
2836 if it is explicitly trusted for OCSP signing. This is used to set
2837 a root CA as a global signing root: that is any certificate that
2838 chains to that CA is an acceptable OCSP signing certificate.
2841 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
2842 extensions from a separate configuration file.
2843 As when reading extensions from the main configuration file,
2844 the '-extensions ...' option may be used for specifying the
2846 [Massimiliano Pala <madwolf@comune.modena.it>]
2848 *) New OCSP utility. Allows OCSP requests to be generated or
2849 read. The request can be sent to a responder and the output
2850 parsed, outputed or printed in text form. Not complete yet:
2851 still needs to check the OCSP response validity.
2854 *) New subcommands for 'openssl ca':
2855 'openssl ca -status <serial>' prints the status of the cert with
2856 the given serial number (according to the index file).
2857 'openssl ca -updatedb' updates the expiry status of certificates
2859 [Massimiliano Pala <madwolf@comune.modena.it>]
2861 *) New '-newreq-nodes' command option to CA.pl. This is like
2862 '-newreq', but calls 'openssl req' with the '-nodes' option
2863 so that the resulting key is not encrypted.
2864 [Damien Miller <djm@mindrot.org>]
2866 *) New configuration for the GNU Hurd.
2867 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
2869 *) Initial code to implement OCSP basic response verify. This
2870 is currently incomplete. Currently just finds the signer's
2871 certificate and verifies the signature on the response.
2874 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
2875 value of OPENSSLDIR. This is available via the new '-d' option
2876 to 'openssl version', and is also included in 'openssl version -a'.
2879 *) Allowing defining memory allocation callbacks that will be given
2880 file name and line number information in additional arguments
2881 (a const char* and an int). The basic functionality remains, as
2882 well as the original possibility to just replace malloc(),
2883 realloc() and free() by functions that do not know about these
2884 additional arguments. To register and find out the current
2885 settings for extended allocation functions, the following
2886 functions are provided:
2888 CRYPTO_set_mem_ex_functions
2889 CRYPTO_set_locked_mem_ex_functions
2890 CRYPTO_get_mem_ex_functions
2891 CRYPTO_get_locked_mem_ex_functions
2893 These work the same way as CRYPTO_set_mem_functions and friends.
2894 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
2895 extended allocation function is enabled.
2896 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
2897 a conventional allocation function is enabled.
2898 [Richard Levitte, Bodo Moeller]
2900 *) Finish off removing the remaining LHASH function pointer casts.
2901 There should no longer be any prototype-casting required when using
2902 the LHASH abstraction, and any casts that remain are "bugs". See
2903 the callback types and macros at the head of lhash.h for details
2904 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
2907 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
2908 If /dev/[u]random devices are not available or do not return enough
2909 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
2911 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
2912 /etc/entropy will be queried once each in this sequence, quering stops
2913 when enough entropy was collected without querying more sockets.
2916 *) Change the Unix RAND_poll() variant to be able to poll several
2917 random devices, as specified by DEVRANDOM, until a sufficient amount
2918 of data has been collected. We spend at most 10 ms on each file
2919 (select timeout) and read in non-blocking mode. DEVRANDOM now
2920 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
2921 (previously it was just the string "/dev/urandom"), so on typical
2922 platforms the 10 ms delay will never occur.
2923 Also separate out the Unix variant to its own file, rand_unix.c.
2924 For VMS, there's a currently-empty rand_vms.c.
2927 *) Move OCSP client related routines to ocsp_cl.c. These
2928 provide utility functions which an application needing
2929 to issue a request to an OCSP responder and analyse the
2930 response will typically need: as opposed to those which an
2931 OCSP responder itself would need which will be added later.
2933 OCSP_request_sign() signs an OCSP request with an API similar
2934 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
2935 response. OCSP_response_get1_basic() extracts basic response
2936 from response. OCSP_resp_find_status(): finds and extracts status
2937 information from an OCSP_CERTID structure (which will be created
2938 when the request structure is built). These are built from lower
2939 level functions which work on OCSP_SINGLERESP structures but
2940 wont normally be used unless the application wishes to examine
2941 extensions in the OCSP response for example.
2943 Replace nonce routines with a pair of functions.
2944 OCSP_request_add1_nonce() adds a nonce value and optionally
2945 generates a random value. OCSP_check_nonce() checks the
2946 validity of the nonce in an OCSP response.
2949 *) Change function OCSP_request_add() to OCSP_request_add0_id().
2950 This doesn't copy the supplied OCSP_CERTID and avoids the
2951 need to free up the newly created id. Change return type
2952 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
2953 This can then be used to add extensions to the request.
2954 Deleted OCSP_request_new(), since most of its functionality
2955 is now in OCSP_REQUEST_new() (and the case insensitive name
2956 clash) apart from the ability to set the request name which
2957 will be added elsewhere.
2960 *) Update OCSP API. Remove obsolete extensions argument from
2961 various functions. Extensions are now handled using the new
2962 OCSP extension code. New simple OCSP HTTP function which
2963 can be used to send requests and parse the response.
2966 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
2967 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
2968 uses the special reorder version of SET OF to sort the attributes
2969 and reorder them to match the encoded order. This resolves a long
2970 standing problem: a verify on a PKCS7 structure just after signing
2971 it used to fail because the attribute order did not match the
2972 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
2973 it uses the received order. This is necessary to tolerate some broken
2974 software that does not order SET OF. This is handled by encoding
2975 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
2976 to produce the required SET OF.
2979 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
2980 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
2981 files to get correct declarations of the ASN.1 item variables.
2984 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
2985 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
2986 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
2987 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
2988 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
2989 ASN1_ITEM and no wrapper functions.
2992 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
2993 replace the old function pointer based I/O routines. Change most of
2994 the *_d2i_bio() and *_d2i_fp() functions to use these.
2997 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
2998 lines, recognice more "algorithms" that can be deselected, and make
2999 it complain about algorithm deselection that isn't recognised.
3002 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
3003 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
3004 to use new functions. Add NO_ASN1_OLD which can be set to remove
3005 some old style ASN1 functions: this can be used to determine if old
3006 code will still work when these eventually go away.
3009 *) New extension functions for OCSP structures, these follow the
3010 same conventions as certificates and CRLs.
3013 *) New function X509V3_add1_i2d(). This automatically encodes and
3014 adds an extension. Its behaviour can be customised with various
3015 flags to append, replace or delete. Various wrappers added for
3016 certifcates and CRLs.
3019 *) Fix to avoid calling the underlying ASN1 print routine when
3020 an extension cannot be parsed. Correct a typo in the
3021 OCSP_SERVICELOC extension. Tidy up print OCSP format.
3024 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
3025 entries for variables.
3028 *) Add functionality to apps/openssl.c for detecting locking
3029 problems: As the program is single-threaded, all we have
3030 to do is register a locking callback using an array for
3031 storing which locks are currently held by the program.
3034 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
3035 SSL_get_ex_data_X509_STORE_idx(), which is used in
3036 ssl_verify_cert_chain() and thus can be called at any time
3037 during TLS/SSL handshakes so that thread-safety is essential.
3038 Unfortunately, the ex_data design is not at all suited
3039 for multi-threaded use, so it probably should be abolished.
3042 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
3043 [Broadcom, tweaked and integrated by Geoff Thorpe]
3045 *) Move common extension printing code to new function
3046 X509V3_print_extensions(). Reorganise OCSP print routines and
3047 implement some needed OCSP ASN1 functions. Add OCSP extensions.
3050 *) New function X509_signature_print() to remove duplication in some
3054 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
3055 set (this was treated exactly the same as SET OF previously). This
3056 is used to reorder the STACK representing the structure to match the
3057 encoding. This will be used to get round a problem where a PKCS7
3058 structure which was signed could not be verified because the STACK
3059 order did not reflect the encoded order.
3062 *) Reimplement the OCSP ASN1 module using the new code.
3065 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
3066 for its ASN1 operations. The old style function pointers still exist
3067 for now but they will eventually go away.
3070 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
3071 completely replaces the old ASN1 functionality with a table driven
3072 encoder and decoder which interprets an ASN1_ITEM structure describing
3073 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
3074 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
3075 has also been converted to the new form.
3078 *) Change BN_mod_exp_recp so that negative moduli are tolerated
3079 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
3080 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
3081 for negative moduli.
3084 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
3085 of not touching the result's sign bit.
3088 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
3092 *) Changed the LHASH code to use prototypes for callbacks, and created
3093 macros to declare and implement thin (optionally static) functions
3094 that provide type-safety and avoid function pointer casting for the
3095 type-specific callbacks.
3098 *) Added Kerberos Cipher Suites to be used with TLS, as written in
3100 [Veers Staats <staatsvr@asc.hpc.mil>,
3101 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
3103 *) Reformat the FAQ so the different questions and answers can be divided
3104 in sections depending on the subject.
3107 *) Have the zlib compression code load ZLIB.DLL dynamically under
3111 *) New function BN_mod_sqrt for computing square roots modulo a prime
3112 (using the probabilistic Tonelli-Shanks algorithm unless
3113 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
3114 be handled deterministically).
3115 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3117 *) Make BN_mod_inverse faster by explicitly handling small quotients
3118 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
3119 512 bits], about 30% for larger ones [1024 or 2048 bits].)
3122 *) New function BN_kronecker.
3125 *) Fix BN_gcd so that it works on negative inputs; the result is
3126 positive unless both parameters are zero.
3127 Previously something reasonably close to an infinite loop was
3128 possible because numbers could be growing instead of shrinking
3129 in the implementation of Euclid's algorithm.
3132 *) Fix BN_is_word() and BN_is_one() macros to take into account the
3133 sign of the number in question.
3135 Fix BN_is_word(a,w) to work correctly for w == 0.
3137 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
3138 because its test if the absolute value of 'a' equals 'w'.
3139 Note that BN_abs_is_word does *not* handle w == 0 reliably;
3140 it exists mostly for use in the implementations of BN_is_zero(),
3141 BN_is_one(), and BN_is_word().
3144 *) New function BN_swap.
3147 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
3148 the exponentiation functions are more likely to produce reasonable
3149 results on negative inputs.
3152 *) Change BN_mod_mul so that the result is always non-negative.
3153 Previously, it could be negative if one of the factors was negative;
3154 I don't think anyone really wanted that behaviour.
3157 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
3158 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
3159 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
3160 and add new functions:
3169 BN_mod_lshift1_quick
3173 These functions always generate non-negative results.
3175 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
3176 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
3178 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
3179 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
3180 be reduced modulo m.
3181 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3184 The following entry accidentily appeared in the CHANGES file
3185 distributed with OpenSSL 0.9.7. The modifications described in
3186 it do *not* apply to OpenSSL 0.9.7.
3188 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3189 was actually never needed) and in BN_mul(). The removal in BN_mul()
3190 required a small change in bn_mul_part_recursive() and the addition
3191 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3192 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3193 bn_sub_words() and bn_add_words() except they take arrays with
3198 *) In 'openssl passwd', verify passwords read from the terminal
3199 unless the '-salt' option is used (which usually means that
3200 verification would just waste user's time since the resulting
3201 hash is going to be compared with some given password hash)
3202 or the new '-noverify' option is used.
3204 This is an incompatible change, but it does not affect
3205 non-interactive use of 'openssl passwd' (passwords on the command
3206 line, '-stdin' option, '-in ...' option) and thus should not
3210 *) Remove all references to RSAref, since there's no more need for it.
3213 *) Make DSO load along a path given through an environment variable
3214 (SHLIB_PATH) with shl_load().
3217 *) Constify the ENGINE code as a result of BIGNUM constification.
3218 Also constify the RSA code and most things related to it. In a
3219 few places, most notable in the depth of the ASN.1 code, ugly
3220 casts back to non-const were required (to be solved at a later
3224 *) Make it so the openssl application has all engines loaded by default.
3227 *) Constify the BIGNUM routines a little more.
3230 *) Add the following functions:
3232 ENGINE_load_cswift()
3234 ENGINE_load_atalla()
3236 ENGINE_load_builtin_engines()
3238 That way, an application can itself choose if external engines that
3239 are built-in in OpenSSL shall ever be used or not. The benefit is
3240 that applications won't have to be linked with libdl or other dso
3241 libraries unless it's really needed.
3243 Changed 'openssl engine' to load all engines on demand.
3244 Changed the engine header files to avoid the duplication of some
3245 declarations (they differed!).
3248 *) 'openssl engine' can now list capabilities.
3251 *) Better error reporting in 'openssl engine'.
3254 *) Never call load_dh_param(NULL) in s_server.
3257 *) Add engine application. It can currently list engines by name and
3258 identity, and test if they are actually available.
3261 *) Improve RPM specification file by forcing symbolic linking and making
3262 sure the installed documentation is also owned by root.root.
3263 [Damien Miller <djm@mindrot.org>]
3265 *) Give the OpenSSL applications more possibilities to make use of
3266 keys (public as well as private) handled by engines.
3269 *) Add OCSP code that comes from CertCo.
3272 *) Add VMS support for the Rijndael code.
3275 *) Added untested support for Nuron crypto accelerator.
3278 *) Add support for external cryptographic devices. This code was
3279 previously distributed separately as the "engine" branch.
3280 [Geoff Thorpe, Richard Levitte]
3282 *) Rework the filename-translation in the DSO code. It is now possible to
3283 have far greater control over how a "name" is turned into a filename
3284 depending on the operating environment and any oddities about the
3285 different shared library filenames on each system.
3288 *) Support threads on FreeBSD-elf in Configure.
3291 *) Fix for SHA1 assembly problem with MASM: it produces
3292 warnings about corrupt line number information when assembling
3293 with debugging information. This is caused by the overlapping
3295 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
3298 NCONF_get_number() has no error checking at all. As a replacement,
3299 NCONF_get_number_e() is defined (_e for "error checking") and is
3300 promoted strongly. The old NCONF_get_number is kept around for
3301 binary backward compatibility.
3302 Make it possible for methods to load from something other than a BIO,
3303 by providing a function pointer that is given a name instead of a BIO.
3304 For example, this could be used to load configuration data from an
3308 *) Fix for non blocking accept BIOs. Added new I/O special reason
3309 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
3310 with non blocking I/O was not possible because no retry code was
3311 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
3315 *) Added the beginnings of Rijndael support.
3318 *) Fix for bug in DirectoryString mask setting. Add support for
3319 X509_NAME_print_ex() in 'req' and X509_print_ex() function
3320 to allow certificate printing to more controllable, additional
3321 'certopt' option to 'x509' to allow new printing options to be
3325 *) Clean old EAY MD5 hack from e_os.h.
3328 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
3330 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3331 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3332 [Joe Orton, Steve Henson]
3334 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
3336 *) Fix additional bug revealed by the NISCC test suite:
3338 Stop bug triggering large recursion when presented with
3339 certain ASN.1 tags (CVE-2003-0851)
3342 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
3344 *) Fix various bugs revealed by running the NISCC test suite:
3346 Stop out of bounds reads in the ASN1 code when presented with
3347 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3349 If verify callback ignores invalid public key errors don't try to check
3350 certificate signature with the NULL public key.
3354 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3355 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3359 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3360 extra data after the compression methods not only for TLS 1.0
3361 but also for SSL 3.0 (as required by the specification).
3362 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3364 *) Change X509_certificate_type() to mark the key as exported/exportable
3365 when it's 512 *bits* long, not 512 bytes.
3368 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
3370 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3371 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3372 a protocol version number mismatch like a decryption error
3373 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3376 *) Turn on RSA blinding by default in the default implementation
3377 to avoid a timing attack. Applications that don't want it can call
3378 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3379 They would be ill-advised to do so in most cases.
3380 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3382 *) Change RSA blinding code so that it works when the PRNG is not
3383 seeded (in this case, the secret RSA exponent is abused as
3384 an unpredictable seed -- if it is not unpredictable, there
3385 is no point in blinding anyway). Make RSA blinding thread-safe
3386 by remembering the creator's thread ID in rsa->blinding and
3387 having all other threads use local one-time blinding factors
3388 (this requires more computation than sharing rsa->blinding, but
3389 avoids excessive locking; and if an RSA object is not shared
3390 between threads, blinding will still be very fast).
3393 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
3395 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3396 via timing by performing a MAC computation even if incorrrect
3397 block cipher padding has been found. This is a countermeasure
3398 against active attacks where the attacker has to distinguish
3399 between bad padding and a MAC verification error. (CVE-2003-0078)
3401 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3402 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3403 Martin Vuagnoux (EPFL, Ilion)]
3405 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
3407 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
3408 memory from it's contents. This is done with a counter that will
3409 place alternating values in each byte. This can be used to solve
3410 two issues: 1) the removal of calls to memset() by highly optimizing
3411 compilers, and 2) cleansing with other values than 0, since those can
3412 be read through on certain media, for example a swap space on disk.
3415 *) Bugfix: client side session caching did not work with external caching,
3416 because the session->cipher setting was not restored when reloading
3417 from the external cache. This problem was masked, when
3418 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
3419 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
3422 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
3423 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
3424 [Zeev Lieber <zeev-l@yahoo.com>]
3426 *) Undo an undocumented change introduced in 0.9.6e which caused
3427 repeated calls to OpenSSL_add_all_ciphers() and
3428 OpenSSL_add_all_digests() to be ignored, even after calling
3432 *) Change the default configuration reader to deal with last line not
3433 being properly terminated.
3436 *) Change X509_NAME_cmp() so it applies the special rules on handling
3437 DN values that are of type PrintableString, as well as RDNs of type
3438 emailAddress where the value has the type ia5String.
3439 [stefank@valicert.com via Richard Levitte]
3441 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
3442 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
3443 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
3444 the bitwise-OR of the two for use by the majority of applications
3445 wanting this behaviour, and update the docs. The documented
3446 behaviour and actual behaviour were inconsistent and had been
3447 changing anyway, so this is more a bug-fix than a behavioural
3449 [Geoff Thorpe, diagnosed by Nadav Har'El]
3451 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
3452 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
3455 *) Fix initialization code race conditions in
3456 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
3457 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
3458 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
3459 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
3460 ssl2_get_cipher_by_char(),
3461 ssl3_get_cipher_by_char().
3462 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
3464 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
3465 the cached sessions are flushed, as the remove_cb() might use ex_data
3466 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
3467 (see [openssl.org #212]).
3468 [Geoff Thorpe, Lutz Jaenicke]
3470 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
3471 length, instead of the encoding length to d2i_ASN1_OBJECT.
3474 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
3476 *) [In 0.9.6g-engine release:]
3477 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
3478 [Lynn Gazis <lgazis@rainbow.com>]
3480 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
3482 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
3483 and get fix the header length calculation.
3484 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
3485 Alon Kantor <alonk@checkpoint.com> (and others),
3488 *) Use proper error handling instead of 'assertions' in buffer
3489 overflow checks added in 0.9.6e. This prevents DoS (the
3490 assertions could call abort()).
3491 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
3493 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
3495 *) Add various sanity checks to asn1_get_length() to reject
3496 the ASN1 length bytes if they exceed sizeof(long), will appear
3497 negative or the content length exceeds the length of the
3499 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3501 *) Fix cipher selection routines: ciphers without encryption had no flags
3502 for the cipher strength set and where therefore not handled correctly
3503 by the selection routines (PR #130).
3506 *) Fix EVP_dsa_sha macro.
3510 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
3511 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
3512 that was added in OpenSSL 0.9.6d.
3514 As the countermeasure turned out to be incompatible with some
3515 broken SSL implementations, the new option is part of SSL_OP_ALL.
3516 SSL_OP_ALL is usually employed when compatibility with weird SSL
3517 implementations is desired (e.g. '-bugs' option to 's_client' and
3518 's_server'), so the new option is automatically set in many
3522 *) Changes in security patch:
3524 Changes marked "(CHATS)" were sponsored by the Defense Advanced
3525 Research Projects Agency (DARPA) and Air Force Research Laboratory,
3526 Air Force Materiel Command, USAF, under agreement number
3529 *) Add various sanity checks to asn1_get_length() to reject
3530 the ASN1 length bytes if they exceed sizeof(long), will appear
3531 negative or the content length exceeds the length of the
3532 supplied buffer. (CVE-2002-0659)
3533 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3535 *) Assertions for various potential buffer overflows, not known to
3537 [Ben Laurie (CHATS)]
3539 *) Various temporary buffers to hold ASCII versions of integers were
3540 too small for 64 bit platforms. (CVE-2002-0655)
3541 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
3543 *) Remote buffer overflow in SSL3 protocol - an attacker could
3544 supply an oversized session ID to a client. (CVE-2002-0656)
3545 [Ben Laurie (CHATS)]
3547 *) Remote buffer overflow in SSL2 protocol - an attacker could
3548 supply an oversized client master key. (CVE-2002-0656)
3549 [Ben Laurie (CHATS)]
3551 Changes between 0.9.6c and 0.9.6d [9 May 2002]
3553 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
3554 encoded as NULL) with id-dsa-with-sha1.
3555 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
3557 *) Check various X509_...() return values in apps/req.c.
3558 [Nils Larsch <nla@trustcenter.de>]
3560 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
3561 an end-of-file condition would erronously be flagged, when the CRLF
3562 was just at the end of a processed block. The bug was discovered when
3563 processing data through a buffering memory BIO handing the data to a
3564 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
3565 <ptsekov@syntrex.com> and Nedelcho Stanev.
3568 *) Implement a countermeasure against a vulnerability recently found
3569 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
3570 before application data chunks to avoid the use of known IVs
3571 with data potentially chosen by the attacker.
3574 *) Fix length checks in ssl3_get_client_hello().
3577 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
3578 to prevent ssl3_read_internal() from incorrectly assuming that
3579 ssl3_read_bytes() found application data while handshake
3580 processing was enabled when in fact s->s3->in_read_app_data was
3581 merely automatically cleared during the initial handshake.
3582 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
3584 *) Fix object definitions for Private and Enterprise: they were not
3585 recognized in their shortname (=lowercase) representation. Extend
3586 obj_dat.pl to issue an error when using undefined keywords instead
3587 of silently ignoring the problem (Svenning Sorensen
3588 <sss@sss.dnsalias.net>).
3591 *) Fix DH_generate_parameters() so that it works for 'non-standard'
3592 generators, i.e. generators other than 2 and 5. (Previously, the
3593 code did not properly initialise the 'add' and 'rem' values to
3594 BN_generate_prime().)
3596 In the new general case, we do not insist that 'generator' is
3597 actually a primitive root: This requirement is rather pointless;
3598 a generator of the order-q subgroup is just as good, if not
3602 *) Map new X509 verification errors to alerts. Discovered and submitted by
3603 Tom Wu <tom@arcot.com>.
3606 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
3607 returning non-zero before the data has been completely received
3608 when using non-blocking I/O.
3609 [Bodo Moeller; problem pointed out by John Hughes]
3611 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
3612 [Ben Laurie, Lutz Jaenicke]
3614 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
3615 Yoram Zahavi <YoramZ@gilian.com>).
3618 *) Add information about CygWin 1.3 and on, and preserve proper
3619 configuration for the versions before that.
3620 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
3622 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
3623 check whether we deal with a copy of a session and do not delete from
3624 the cache in this case. Problem reported by "Izhar Shoshani Levi"
3625 <izhar@checkpoint.com>.
3628 *) Do not store session data into the internal session cache, if it
3629 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
3630 flag is set). Proposed by Aslam <aslam@funk.com>.
3633 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
3637 *) [In 0.9.6d-engine release:]
3638 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3639 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3641 *) Add the configuration target linux-s390x.
3642 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
3644 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
3645 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
3646 variable as an indication that a ClientHello message has been
3647 received. As the flag value will be lost between multiple
3648 invocations of ssl3_accept when using non-blocking I/O, the
3649 function may not be aware that a handshake has actually taken
3650 place, thus preventing a new session from being added to the
3653 To avoid this problem, we now set s->new_session to 2 instead of
3654 using a local variable.
3655 [Lutz Jaenicke, Bodo Moeller]
3657 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
3658 if the SSL_R_LENGTH_MISMATCH error is detected.
3659 [Geoff Thorpe, Bodo Moeller]
3661 *) New 'shared_ldflag' column in Configure platform table.
3664 *) Fix EVP_CIPHER_mode macro.
3665 ["Dan S. Camper" <dan@bti.net>]
3667 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
3668 type, we must throw them away by setting rr->length to 0.
3669 [D P Chang <dpc@qualys.com>]
3671 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
3673 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
3674 <Dominikus.Scherkl@biodata.com>. (The previous implementation
3675 worked incorrectly for those cases where range = 10..._2 and
3676 3*range is two bits longer than range.)
3679 *) Only add signing time to PKCS7 structures if it is not already
3683 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
3684 OBJ_ld_ce should be OBJ_id_ce.
3685 Also some ip-pda OIDs in crypto/objects/objects.txt were
3686 incorrect (cf. RFC 3039).
3687 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
3689 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
3690 returns early because it has nothing to do.
3691 [Andy Schneider <andy.schneider@bjss.co.uk>]
3693 *) [In 0.9.6c-engine release:]
3694 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
3695 [Andy Schneider <andy.schneider@bjss.co.uk>]
3697 *) [In 0.9.6c-engine release:]
3698 Add support for Cryptographic Appliance's keyserver technology.
3699 (Use engine 'keyclient')
3700 [Cryptographic Appliances and Geoff Thorpe]
3702 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
3703 is called via tools/c89.sh because arguments have to be
3704 rearranged (all '-L' options must appear before the first object
3706 [Richard Shapiro <rshapiro@abinitio.com>]
3708 *) [In 0.9.6c-engine release:]
3709 Add support for Broadcom crypto accelerator cards, backported
3711 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
3713 *) [In 0.9.6c-engine release:]
3714 Add support for SureWare crypto accelerator cards from
3715 Baltimore Technologies. (Use engine 'sureware')
3716 [Baltimore Technologies and Mark Cox]
3718 *) [In 0.9.6c-engine release:]
3719 Add support for crypto accelerator cards from Accelerated
3720 Encryption Processing, www.aep.ie. (Use engine 'aep')
3721 [AEP Inc. and Mark Cox]
3723 *) Add a configuration entry for gcc on UnixWare.
3724 [Gary Benson <gbenson@redhat.com>]
3726 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
3727 messages are stored in a single piece (fixed-length part and
3728 variable-length part combined) and fix various bugs found on the way.
3731 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
3732 instead. BIO_gethostbyname() does not know what timeouts are
3733 appropriate, so entries would stay in cache even when they have
3735 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
3737 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
3738 faced with a pathologically small ClientHello fragment that does
3739 not contain client_version: Instead of aborting with an error,
3740 simply choose the highest available protocol version (i.e.,
3741 TLS 1.0 unless it is disabled). In practice, ClientHello
3742 messages are never sent like this, but this change gives us
3743 strictly correct behaviour at least for TLS.
3746 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
3747 never resets s->method to s->ctx->method when called from within
3748 one of the SSL handshake functions.
3749 [Bodo Moeller; problem pointed out by Niko Baric]
3751 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
3752 (sent using the client's version number) if client_version is
3753 smaller than the protocol version in use. Also change
3754 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
3755 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
3756 the client will at least see that alert.
3759 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
3763 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
3764 client receives HelloRequest while in a handshake.
3765 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
3767 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
3768 should end in 'break', not 'goto end' which circuments various
3769 cleanups done in state SSL_ST_OK. But session related stuff
3770 must be disabled for SSL_ST_OK in the case that we just sent a
3773 Also avoid some overhead by not calling ssl_init_wbio_buffer()
3774 before just sending a HelloRequest.
3775 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
3777 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
3778 reveal whether illegal block cipher padding was found or a MAC
3779 verification error occured. (Neither SSLerr() codes nor alerts
3780 are directly visible to potential attackers, but the information
3781 may leak via logfiles.)
3783 Similar changes are not required for the SSL 2.0 implementation
3784 because the number of padding bytes is sent in clear for SSL 2.0,
3785 and the extra bytes are just ignored. However ssl/s2_pkt.c
3786 failed to verify that the purported number of padding bytes is in
3790 *) Add OpenUNIX-8 support including shared libraries
3791 (Boyd Lynn Gerber <gerberb@zenez.com>).
3794 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
3795 'wristwatch attack' using huge encoding parameters (cf.
3796 James H. Manger's CRYPTO 2001 paper). Note that the
3797 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
3798 encoding parameters and hence was not vulnerable.
3801 *) BN_sqr() bug fix.
3802 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
3804 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
3805 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
3806 followed by modular reduction.
3807 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
3809 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
3810 equivalent based on BN_pseudo_rand() instead of BN_rand().
3813 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
3814 This function was broken, as the check for a new client hello message
3815 to handle SGC did not allow these large messages.
3816 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
3819 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
3822 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
3823 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
3826 *) Rework the configuration and shared library support for Tru64 Unix.
3827 The configuration part makes use of modern compiler features and
3828 still retains old compiler behavior for those that run older versions
3829 of the OS. The shared library support part includes a variant that
3830 uses the RPATH feature, and is available through the special
3831 configuration target "alpha-cc-rpath", which will never be selected
3833 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
3835 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
3836 with the same message size as in ssl3_get_certificate_request().
3837 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
3838 messages might inadvertently be reject as too long.
3839 [Petr Lampa <lampa@fee.vutbr.cz>]
3841 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
3844 *) Modified SSL library such that the verify_callback that has been set
3845 specificly for an SSL object with SSL_set_verify() is actually being
3846 used. Before the change, a verify_callback set with this function was
3847 ignored and the verify_callback() set in the SSL_CTX at the time of
3848 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
3849 to allow the necessary settings.
3852 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
3853 explicitly to NULL, as at least on Solaris 8 this seems not always to be
3854 done automatically (in contradiction to the requirements of the C
3855 standard). This made problems when used from OpenSSH.
3858 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
3859 dh->length and always used
3861 BN_rand_range(priv_key, dh->p).
3863 BN_rand_range() is not necessary for Diffie-Hellman, and this
3864 specific range makes Diffie-Hellman unnecessarily inefficient if
3865 dh->length (recommended exponent length) is much smaller than the
3866 length of dh->p. We could use BN_rand_range() if the order of
3867 the subgroup was stored in the DH structure, but we only have
3872 BN_rand(priv_key, l, ...)
3874 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
3880 RSA_eay_public_encrypt
3881 RSA_eay_private_decrypt
3882 RSA_eay_private_encrypt (signing)
3883 RSA_eay_public_decrypt (signature verification)
3885 (default implementations for RSA_public_encrypt,
3886 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
3887 always reject numbers >= n.
3890 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
3891 to synchronize access to 'locking_thread'. This is necessary on
3892 systems where access to 'locking_thread' (an 'unsigned long'
3893 variable) is not atomic.
3896 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
3897 *before* setting the 'crypto_lock_rand' flag. The previous code had
3898 a race condition if 0 is a valid thread ID.
3899 [Travis Vitek <vitek@roguewave.com>]
3901 *) Add support for shared libraries under Irix.
3902 [Albert Chin-A-Young <china@thewrittenword.com>]
3904 *) Add configuration option to build on Linux on both big-endian and
3906 [Ralf Baechle <ralf@uni-koblenz.de>]
3908 *) Add the possibility to create shared libraries on HP-UX.
3911 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
3913 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
3914 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
3915 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
3916 PRNG state recovery was possible based on the output of
3917 one PRNG request appropriately sized to gain knowledge on
3918 'md' followed by enough consecutive 1-byte PRNG requests
3919 to traverse all of 'state'.
3921 1. When updating 'md_local' (the current thread's copy of 'md')
3922 during PRNG output generation, hash all of the previous
3923 'md_local' value, not just the half used for PRNG output.
3925 2. Make the number of bytes from 'state' included into the hash
3926 independent from the number of PRNG bytes requested.
3928 The first measure alone would be sufficient to avoid
3929 Markku-Juhani's attack. (Actually it had never occurred
3930 to me that the half of 'md_local' used for chaining was the
3931 half from which PRNG output bytes were taken -- I had always
3932 assumed that the secret half would be used.) The second
3933 measure makes sure that additional data from 'state' is never
3934 mixed into 'md_local' in small portions; this heuristically
3935 further strengthens the PRNG.
3938 *) Fix crypto/bn/asm/mips3.s.
3941 *) When only the key is given to "enc", the IV is undefined. Print out
3942 an error message in this case.
3945 *) Handle special case when X509_NAME is empty in X509 printing routines.
3948 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
3949 positive and less than q.
3952 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
3953 used: it isn't thread safe and the add_lock_callback should handle
3955 [Paul Rose <Paul.Rose@bridge.com>]
3957 *) Verify that incoming data obeys the block size in
3958 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
3962 [Ulf Möller, Bodo Möller]
3964 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
3965 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
3966 when fixing the server behaviour for backwards-compatible 'client
3967 hello' messages. (Note that the attack is impractical against
3968 SSL 3.0 and TLS 1.0 anyway because length and version checking
3969 means that the probability of guessing a valid ciphertext is
3970 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
3973 Before 0.9.5, the countermeasure (hide the error by generating a
3974 random 'decryption result') did not work properly because
3975 ERR_clear_error() was missing, meaning that SSL_get_error() would
3976 detect the supposedly ignored error.
3978 Both problems are now fixed.
3981 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
3982 (previously it was 1024).
3985 *) Fix for compatibility mode trust settings: ignore trust settings
3986 unless some valid trust or reject settings are present.
3989 *) Fix for blowfish EVP: its a variable length cipher.
3992 *) Fix various bugs related to DSA S/MIME verification. Handle missing
3993 parameters in DSA public key structures and return an error in the
3994 DSA routines if parameters are absent.
3997 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
3998 in the current directory if neither $RANDFILE nor $HOME was set.
3999 RAND_file_name() in 0.9.6a returned NULL in this case. This has
4000 caused some confusion to Windows users who haven't defined $HOME.
4001 Thus RAND_file_name() is changed again: e_os.h can define a
4002 DEFAULT_HOME, which will be used if $HOME is not set.
4003 For Windows, we use "C:"; on other platforms, we still require
4004 environment variables.
4006 *) Move 'if (!initialized) RAND_poll()' into regions protected by
4007 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
4008 having multiple threads call RAND_poll() concurrently.
4011 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
4012 combination of a flag and a thread ID variable.
4013 Otherwise while one thread is in ssleay_rand_bytes (which sets the
4014 flag), *other* threads can enter ssleay_add_bytes without obeying
4015 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
4016 that they do not hold after the first thread unsets add_do_not_lock).
4019 *) Change bctest again: '-x' expressions are not available in all
4023 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
4025 *) Fix a couple of memory leaks in PKCS7_dataDecode()
4026 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
4028 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
4029 the default extension for executables, if any. Also, make the perl
4030 scripts that use symlink() to test if it really exists and use "cp"
4031 if it doesn't. All this made OpenSSL compilable and installable in
4035 *) Fix for asn1_GetSequence() for indefinite length constructed data.
4036 If SEQUENCE is length is indefinite just set c->slen to the total
4037 amount of data available.
4038 [Steve Henson, reported by shige@FreeBSD.org]
4039 [This change does not apply to 0.9.7.]
4041 *) Change bctest to avoid here-documents inside command substitution
4042 (workaround for FreeBSD /bin/sh bug).
4043 For compatibility with Ultrix, avoid shell functions (introduced
4044 in the bctest version that searches along $PATH).
4047 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
4048 with des_encrypt() defined on some operating systems, like Solaris
4052 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
4053 On the Importance of Eliminating Errors in Cryptographic
4054 Computations, J. Cryptology 14 (2001) 2, 101-119,
4055 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
4058 *) MIPS assembler BIGNUM division bug fix.
4061 *) Disabled incorrect Alpha assembler code.
4064 *) Fix PKCS#7 decode routines so they correctly update the length
4065 after reading an EOC for the EXPLICIT tag.
4067 [This change does not apply to 0.9.7.]
4069 *) Fix bug in PKCS#12 key generation routines. This was triggered
4070 if a 3DES key was generated with a 0 initial byte. Include
4071 PKCS12_BROKEN_KEYGEN compilation option to retain the old
4072 (but broken) behaviour.
4075 *) Enhance bctest to search for a working bc along $PATH and print
4077 [Tim Rice <tim@multitalents.net> via Richard Levitte]
4079 *) Fix memory leaks in err.c: free err_data string if necessary;
4080 don't write to the wrong index in ERR_set_error_data.
4083 *) Implement ssl23_peek (analogous to ssl23_read), which previously
4087 *) Replace rdtsc with _emit statements for VC++ version 5.
4088 [Jeremy Cooper <jeremy@baymoo.org>]
4090 *) Make it possible to reuse SSLv2 sessions.
4093 *) In copy_email() check for >= 0 as a return value for
4094 X509_NAME_get_index_by_NID() since 0 is a valid index.
4095 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
4097 *) Avoid coredump with unsupported or invalid public keys by checking if
4098 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
4099 PKCS7_verify() fails with non detached data.
4102 *) Don't use getenv in library functions when run as setuid/setgid.
4103 New function OPENSSL_issetugid().
4106 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
4107 due to incorrect handling of multi-threading:
4109 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
4111 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
4113 3. Count how many times MemCheck_off() has been called so that
4114 nested use can be treated correctly. This also avoids
4115 inband-signalling in the previous code (which relied on the
4116 assumption that thread ID 0 is impossible).
4119 *) Add "-rand" option also to s_client and s_server.
4122 *) Fix CPU detection on Irix 6.x.
4123 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
4124 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4126 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
4129 [This change does not apply to 0.9.7.]
4131 *) Use the cached encoding of an X509_NAME structure rather than
4132 copying it. This is apparently the reason for the libsafe "errors"
4133 but the code is actually correct.
4136 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
4137 Bleichenbacher's DSA attack.
4138 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
4139 to be set and top=0 forces the highest bit to be set; top=-1 is new
4140 and leaves the highest bit random.
4141 [Ulf Moeller, Bodo Moeller]
4143 *) In the NCONF_...-based implementations for CONF_... queries
4144 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
4145 a temporary CONF structure with the data component set to NULL
4146 (which gives segmentation faults in lh_retrieve).
4147 Instead, use NULL for the CONF pointer in CONF_get_string and
4148 CONF_get_number (which may use environment variables) and directly
4149 return NULL from CONF_get_section.
4152 *) Fix potential buffer overrun for EBCDIC.
4155 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
4156 keyUsage if basicConstraints absent for a CA.
4159 *) Make SMIME_write_PKCS7() write mail header values with a format that
4160 is more generally accepted (no spaces before the semicolon), since
4161 some programs can't parse those values properly otherwise. Also make
4162 sure BIO's that break lines after each write do not create invalid
4166 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
4167 macros previously used would not encode an empty SEQUENCE OF
4168 and break the signature.
4170 [This change does not apply to 0.9.7.]
4172 *) Zero the premaster secret after deriving the master secret in
4176 *) Add some EVP_add_digest_alias registrations (as found in
4177 OpenSSL_add_all_digests()) to SSL_library_init()
4178 aka OpenSSL_add_ssl_algorithms(). This provides improved
4179 compatibility with peers using X.509 certificates
4180 with unconventional AlgorithmIdentifier OIDs.
4183 *) Fix for Irix with NO_ASM.
4184 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4186 *) ./config script fixes.
4187 [Ulf Moeller, Richard Levitte]
4189 *) Fix 'openssl passwd -1'.
4192 *) Change PKCS12_key_gen_asc() so it can cope with non null
4193 terminated strings whose length is passed in the passlen
4194 parameter, for example from PEM callbacks. This was done
4195 by adding an extra length parameter to asc2uni().
4196 [Steve Henson, reported by <oddissey@samsung.co.kr>]
4198 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
4199 call failed, free the DSA structure.
4202 *) Fix to uni2asc() to cope with zero length Unicode strings.
4203 These are present in some PKCS#12 files.
4206 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
4207 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
4208 when writing a 32767 byte record.
4209 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
4211 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
4212 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
4214 (RSA objects have a reference count access to which is protected
4215 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
4216 so they are meant to be shared between threads.)
4217 [Bodo Moeller, Geoff Thorpe; original patch submitted by
4218 "Reddie, Steven" <Steven.Reddie@ca.com>]
4220 *) Fix a deadlock in CRYPTO_mem_leaks().
4223 *) Use better test patterns in bntest.
4226 *) rand_win.c fix for Borland C.
4229 *) BN_rshift bugfix for n == 0.
4232 *) Add a 'bctest' script that checks for some known 'bc' bugs
4233 so that 'make test' does not abort just because 'bc' is broken.
4236 *) Store verify_result within SSL_SESSION also for client side to
4237 avoid potential security hole. (Re-used sessions on the client side
4238 always resulted in verify_result==X509_V_OK, not using the original
4239 result of the server certificate verification.)
4242 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
4243 SSL3_RT_APPLICATION_DATA, return 0.
4244 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
4248 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
4249 releases, have been re-implemented by renaming the previous
4250 implementations of ssl2_read and ssl3_read to ssl2_read_internal
4251 and ssl3_read_internal, respectively, and adding 'peek' parameters
4252 to them. The new ssl[23]_{read,peek} functions are calls to
4253 ssl[23]_read_internal with the 'peek' flag set appropriately.
4254 A 'peek' parameter has also been added to ssl3_read_bytes, which
4255 does the actual work for ssl3_read_internal.
4258 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
4259 the method-specific "init()" handler. Also clean up ex_data after
4260 calling the method-specific "finish()" handler. Previously, this was
4261 happening the other way round.
4264 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
4265 The previous value, 12, was not always sufficient for BN_mod_exp().
4268 *) Make sure that shared libraries get the internal name engine with
4269 the full version number and not just 0. This should mark the
4270 shared libraries as not backward compatible. Of course, this should
4271 be changed again when we can guarantee backward binary compatibility.
4274 *) Fix typo in get_cert_by_subject() in by_dir.c
4275 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
4277 *) Rework the system to generate shared libraries:
4279 - Make note of the expected extension for the shared libraries and
4280 if there is a need for symbolic links from for example libcrypto.so.0
4281 to libcrypto.so.0.9.7. There is extended info in Configure for
4284 - Make as few rebuilds of the shared libraries as possible.
4286 - Still avoid linking the OpenSSL programs with the shared libraries.
4288 - When installing, install the shared libraries separately from the
4292 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
4294 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
4295 and not in SSL_clear because the latter is also used by the
4296 accept/connect functions; previously, the settings made by
4297 SSL_set_read_ahead would be lost during the handshake.
4298 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
4300 *) Correct util/mkdef.pl to be selective about disabled algorithms.
4301 Previously, it would create entries for disableed algorithms no
4305 *) Added several new manual pages for SSL_* function.
4308 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
4310 *) In ssl23_get_client_hello, generate an error message when faced
4311 with an initial SSL 3.0/TLS record that is too small to contain the
4312 first two bytes of the ClientHello message, i.e. client_version.
4313 (Note that this is a pathologic case that probably has never happened
4314 in real life.) The previous approach was to use the version number
4315 from the record header as a substitute; but our protocol choice
4316 should not depend on that one because it is not authenticated
4317 by the Finished messages.
4320 *) More robust randomness gathering functions for Windows.
4321 [Jeffrey Altman <jaltman@columbia.edu>]
4323 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
4324 not set then we don't setup the error code for issuer check errors
4325 to avoid possibly overwriting other errors which the callback does
4326 handle. If an application does set the flag then we assume it knows
4327 what it is doing and can handle the new informational codes
4331 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
4332 a general "ANY" type, as such it should be able to decode anything
4333 including tagged types. However it didn't check the class so it would
4334 wrongly interpret tagged types in the same way as their universal
4335 counterpart and unknown types were just rejected. Changed so that the
4336 tagged and unknown types are handled in the same way as a SEQUENCE:
4337 that is the encoding is stored intact. There is also a new type
4338 "V_ASN1_OTHER" which is used when the class is not universal, in this
4339 case we have no idea what the actual type is so we just lump them all
4343 *) On VMS, stdout may very well lead to a file that is written to
4344 in a record-oriented fashion. That means that every write() will
4345 write a separate record, which will be read separately by the
4346 programs trying to read from it. This can be very confusing.
4348 The solution is to put a BIO filter in the way that will buffer
4349 text until a linefeed is reached, and then write everything a
4350 line at a time, so every record written will be an actual line,
4351 not chunks of lines and not (usually doesn't happen, but I've
4352 seen it once) several lines in one record. BIO_f_linebuffer() is
4355 Currently, it's a VMS-only method, because that's where it has
4356 been tested well enough.
4359 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
4360 it can return incorrect results.
4361 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
4362 but it was in 0.9.6-beta[12].)
4365 *) Disable the check for content being present when verifying detached
4366 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
4367 include zero length content when signing messages.
4370 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
4371 BIO_ctrl (for BIO pairs).
4374 *) Add DSO method for VMS.
4377 *) Bug fix: Montgomery multiplication could produce results with the
4381 *) Add RPM specification openssl.spec and modify it to build three
4382 packages. The default package contains applications, application
4383 documentation and run-time libraries. The devel package contains
4384 include files, static libraries and function documentation. The
4385 doc package contains the contents of the doc directory. The original
4386 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
4389 *) Add a large number of documentation files for many SSL routines.
4390 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
4392 *) Add a configuration entry for Sony News 4.
4393 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
4395 *) Don't set the two most significant bits to one when generating a
4396 random number < q in the DSA library.
4399 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
4400 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
4401 the underlying transport is blocking) if a handshake took place.
4402 (The default behaviour is needed by applications such as s_client
4403 and s_server that use select() to determine when to use SSL_read;
4404 but for applications that know in advance when to expect data, it
4405 just makes things more complicated.)
4408 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
4412 *) Add a few more EBCDIC conditionals that make `req' and `x509'
4413 work better on such systems.
4414 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
4416 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
4417 Update PKCS12_parse() so it copies the friendlyName and the
4418 keyid to the certificates aux info.
4421 *) Fix bug in PKCS7_verify() which caused an infinite loop
4422 if there was more than one signature.
4423 [Sven Uszpelkat <su@celocom.de>]
4425 *) Major change in util/mkdef.pl to include extra information
4426 about each symbol, as well as presentig variables as well
4427 as functions. This change means that there's n more need
4428 to rebuild the .num files when some algorithms are excluded.
4431 *) Allow the verify time to be set by an application,
4432 rather than always using the current time.
4435 *) Phase 2 verify code reorganisation. The certificate
4436 verify code now looks up an issuer certificate by a
4437 number of criteria: subject name, authority key id
4438 and key usage. It also verifies self signed certificates
4439 by the same criteria. The main comparison function is
4440 X509_check_issued() which performs these checks.
4442 Lot of changes were necessary in order to support this
4443 without completely rewriting the lookup code.
4445 Authority and subject key identifier are now cached.
4447 The LHASH 'certs' is X509_STORE has now been replaced
4448 by a STACK_OF(X509_OBJECT). This is mainly because an
4449 LHASH can't store or retrieve multiple objects with
4450 the same hash value.
4452 As a result various functions (which were all internal
4453 use only) have changed to handle the new X509_STORE
4454 structure. This will break anything that messed round
4455 with X509_STORE internally.
4457 The functions X509_STORE_add_cert() now checks for an
4458 exact match, rather than just subject name.
4460 The X509_STORE API doesn't directly support the retrieval
4461 of multiple certificates matching a given criteria, however
4462 this can be worked round by performing a lookup first
4463 (which will fill the cache with candidate certificates)
4464 and then examining the cache for matches. This is probably
4465 the best we can do without throwing out X509_LOOKUP
4466 entirely (maybe later...).
4468 The X509_VERIFY_CTX structure has been enhanced considerably.
4470 All certificate lookup operations now go via a get_issuer()
4471 callback. Although this currently uses an X509_STORE it
4472 can be replaced by custom lookups. This is a simple way
4473 to bypass the X509_STORE hackery necessary to make this
4474 work and makes it possible to use more efficient techniques
4475 in future. A very simple version which uses a simple
4476 STACK for its trusted certificate store is also provided
4477 using X509_STORE_CTX_trusted_stack().
4479 The verify_cb() and verify() callbacks now have equivalents
4480 in the X509_STORE_CTX structure.
4482 X509_STORE_CTX also has a 'flags' field which can be used
4483 to customise the verify behaviour.
4486 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
4487 excludes S/MIME capabilities.
4490 *) When a certificate request is read in keep a copy of the
4491 original encoding of the signed data and use it when outputing
4492 again. Signatures then use the original encoding rather than
4493 a decoded, encoded version which may cause problems if the
4494 request is improperly encoded.
4497 *) For consistency with other BIO_puts implementations, call
4498 buffer_write(b, ...) directly in buffer_puts instead of calling
4501 In BIO_puts, increment b->num_write as in BIO_write.
4502 [Peter.Sylvester@EdelWeb.fr]
4504 *) Fix BN_mul_word for the case where the word is 0. (We have to use
4505 BN_zero, we may not return a BIGNUM with an array consisting of
4509 *) Avoid calling abort() from within the library when problems are
4510 detected, except if preprocessor symbols have been defined
4511 (such as REF_CHECK, BN_DEBUG etc.).
4514 *) New openssl application 'rsautl'. This utility can be
4515 used for low level RSA operations. DER public key
4516 BIO/fp routines also added.
4519 *) New Configure entry and patches for compiling on QNX 4.
4520 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
4522 *) A demo state-machine implementation was sponsored by
4523 Nuron (http://www.nuron.com/) and is now available in
4524 demos/state_machine.
4527 *) New options added to the 'dgst' utility for signature
4528 generation and verification.
4531 *) Unrecognized PKCS#7 content types are now handled via a
4532 catch all ASN1_TYPE structure. This allows unsupported
4533 types to be stored as a "blob" and an application can
4534 encode and decode it manually.
4537 *) Fix various signed/unsigned issues to make a_strex.c
4539 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
4541 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
4542 length if passed a buffer. ASN1_INTEGER_to_BN failed
4543 if passed a NULL BN and its argument was negative.
4544 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
4546 *) Modification to PKCS#7 encoding routines to output definite
4547 length encoding. Since currently the whole structures are in
4548 memory there's not real point in using indefinite length
4549 constructed encoding. However if OpenSSL is compiled with
4550 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
4553 *) Added BIO_vprintf() and BIO_vsnprintf().
4556 *) Added more prefixes to parse for in the the strings written
4557 through a logging bio, to cover all the levels that are available
4558 through syslog. The prefixes are now:
4560 PANIC, EMERG, EMR => LOG_EMERG
4561 ALERT, ALR => LOG_ALERT
4562 CRIT, CRI => LOG_CRIT
4563 ERROR, ERR => LOG_ERR
4564 WARNING, WARN, WAR => LOG_WARNING
4565 NOTICE, NOTE, NOT => LOG_NOTICE
4566 INFO, INF => LOG_INFO
4567 DEBUG, DBG => LOG_DEBUG
4569 and as before, if none of those prefixes are present at the
4570 beginning of the string, LOG_ERR is chosen.
4572 On Win32, the LOG_* levels are mapped according to this:
4574 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
4575 LOG_WARNING => EVENTLOG_WARNING_TYPE
4576 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
4580 *) Made it possible to reconfigure with just the configuration
4581 argument "reconf" or "reconfigure". The command line arguments
4582 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
4583 and are retrieved from there when reconfiguring.
4587 [Assar Westerlund <assar@sics.se>, Richard Levitte]
4589 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
4592 *) The obj_dat.pl script was messing up the sorting of object
4593 names. The reason was that it compared the quoted version
4594 of strings as a result "OCSP" > "OCSP Signing" because
4595 " > SPACE. Changed script to store unquoted versions of
4596 names and add quotes on output. It was also omitting some
4597 names from the lookup table if they were given a default
4598 value (that is if SN is missing it is given the same
4599 value as LN and vice versa), these are now added on the
4600 grounds that if an object has a name we should be able to
4601 look it up. Finally added warning output when duplicate
4602 short or long names are found.
4605 *) Changes needed for Tandem NSK.
4606 [Scott Uroff <scott@xypro.com>]
4608 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
4609 RSA_padding_check_SSLv23(), special padding was never detected
4610 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
4611 version rollback attacks was not effective.
4613 In s23_clnt.c, don't use special rollback-attack detection padding
4614 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
4615 client; similarly, in s23_srvr.c, don't do the rollback check if
4616 SSL 2.0 is the only protocol enabled in the server.
4619 *) Make it possible to get hexdumps of unprintable data with 'openssl
4620 asn1parse'. By implication, the functions ASN1_parse_dump() and
4621 BIO_dump_indent() are added.
4624 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
4625 these print out strings and name structures based on various
4626 flags including RFC2253 support and proper handling of
4627 multibyte characters. Added options to the 'x509' utility
4628 to allow the various flags to be set.
4631 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
4632 Also change the functions X509_cmp_current_time() and
4633 X509_gmtime_adj() work with an ASN1_TIME structure,
4634 this will enable certificates using GeneralizedTime in validity
4635 dates to be checked.
4638 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
4639 negative public key encodings) on by default,
4640 NO_NEG_PUBKEY_BUG can be set to disable it.
4643 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
4644 content octets. An i2c_ASN1_OBJECT is unnecessary because
4645 the encoding can be trivially obtained from the structure.
4648 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
4649 not read locks (CRYPTO_r_[un]lock).
4652 *) A first attempt at creating official support for shared
4653 libraries through configuration. I've kept it so the
4654 default is static libraries only, and the OpenSSL programs
4655 are always statically linked for now, but there are
4656 preparations for dynamic linking in place.
4657 This has been tested on Linux and Tru64.
4660 *) Randomness polling function for Win9x, as described in:
4661 Peter Gutmann, Software Generation of Practically Strong
4665 *) Fix so PRNG is seeded in req if using an already existing
4669 *) New options to smime application. -inform and -outform
4670 allow alternative formats for the S/MIME message including
4671 PEM and DER. The -content option allows the content to be
4672 specified separately. This should allow things like Netscape
4673 form signing output easier to verify.
4676 *) Fix the ASN1 encoding of tags using the 'long form'.
4679 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
4680 STRING types. These convert content octets to and from the
4681 underlying type. The actual tag and length octets are
4682 already assumed to have been read in and checked. These
4683 are needed because all other string types have virtually
4684 identical handling apart from the tag. By having versions
4685 of the ASN1 functions that just operate on content octets
4686 IMPLICIT tagging can be handled properly. It also allows
4687 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
4688 and ASN1_INTEGER are identical apart from the tag.
4691 *) Change the handling of OID objects as follows:
4693 - New object identifiers are inserted in objects.txt, following
4694 the syntax given in objects.README.
4695 - objects.pl is used to process obj_mac.num and create a new
4697 - obj_dat.pl is used to create a new obj_dat.h, using the data in
4700 This is currently kind of a hack, and the perl code in objects.pl
4701 isn't very elegant, but it works as I intended. The simplest way
4702 to check that it worked correctly is to look in obj_dat.h and
4703 check the array nid_objs and make sure the objects haven't moved
4704 around (this is important!). Additions are OK, as well as
4705 consistent name changes.
4708 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
4711 *) Addition of the command line parameter '-rand file' to 'openssl req'.
4712 The given file adds to whatever has already been seeded into the
4713 random pool through the RANDFILE configuration file option or
4714 environment variable, or the default random state file.
4717 *) mkstack.pl now sorts each macro group into lexical order.
4718 Previously the output order depended on the order the files
4719 appeared in the directory, resulting in needless rewriting
4723 *) Patches to make OpenSSL compile under Win32 again. Mostly
4724 work arounds for the VC++ problem that it treats func() as
4725 func(void). Also stripped out the parts of mkdef.pl that
4726 added extra typesafe functions: these no longer exist.
4729 *) Reorganisation of the stack code. The macros are now all
4730 collected in safestack.h . Each macro is defined in terms of
4731 a "stack macro" of the form SKM_<name>(type, a, b). The
4732 DEBUG_SAFESTACK is now handled in terms of function casts,
4733 this has the advantage of retaining type safety without the
4734 use of additional functions. If DEBUG_SAFESTACK is not defined
4735 then the non typesafe macros are used instead. Also modified the
4736 mkstack.pl script to handle the new form. Needs testing to see
4737 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
4738 the default if no major problems. Similar behaviour for ASN1_SET_OF
4739 and PKCS12_STACK_OF.
4742 *) When some versions of IIS use the 'NET' form of private key the
4743 key derivation algorithm is different. Normally MD5(password) is
4744 used as a 128 bit RC4 key. In the modified case
4745 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
4746 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
4747 as the old Netscape_RSA functions except they have an additional
4748 'sgckey' parameter which uses the modified algorithm. Also added
4749 an -sgckey command line option to the rsa utility. Thanks to
4750 Adrian Peck <bertie@ncipher.com> for posting details of the modified
4751 algorithm to openssl-dev.
4754 *) The evp_local.h macros were using 'c.##kname' which resulted in
4755 invalid expansion on some systems (SCO 5.0.5 for example).
4756 Corrected to 'c.kname'.
4757 [Phillip Porch <root@theporch.com>]
4759 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
4760 a STACK of email addresses from a certificate or request, these look
4761 in the subject name and the subject alternative name extensions and
4762 omit any duplicate addresses.
4765 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
4766 This makes DSA verification about 2 % faster.
4769 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
4770 (meaning that now 2^5 values will be precomputed, which is only 4 KB
4771 plus overhead for 1024 bit moduli).
4772 This makes exponentiations about 0.5 % faster for 1024 bit
4773 exponents (as measured by "openssl speed rsa2048").
4776 *) Rename memory handling macros to avoid conflicts with other
4778 Malloc => OPENSSL_malloc
4779 Malloc_locked => OPENSSL_malloc_locked
4780 Realloc => OPENSSL_realloc
4781 Free => OPENSSL_free
4784 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
4785 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
4788 *) CygWin32 support.
4789 [John Jarvie <jjarvie@newsguy.com>]
4791 *) The type-safe stack code has been rejigged. It is now only compiled
4792 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
4793 by default all type-specific stack functions are "#define"d back to
4794 standard stack functions. This results in more streamlined output
4795 but retains the type-safety checking possibilities of the original
4799 *) The STACK code has been cleaned up, and certain type declarations
4800 that didn't make a lot of sense have been brought in line. This has
4801 also involved a cleanup of sorts in safestack.h to more correctly
4802 map type-safe stack functions onto their plain stack counterparts.
4803 This work has also resulted in a variety of "const"ifications of
4804 lots of the code, especially "_cmp" operations which should normally
4805 be prototyped with "const" parameters anyway.
4808 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
4809 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
4810 (The PRNG state consists of two parts, the large pool 'state' and 'md',
4811 where all of 'md' is used each time the PRNG is used, but 'state'
4812 is used only indexed by a cyclic counter. As entropy may not be
4813 well distributed from the beginning, 'md' is important as a
4814 chaining variable. However, the output function chains only half
4815 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
4816 all of 'md', and seeding with STATE_SIZE dummy bytes will result
4817 in all of 'state' being rewritten, with the new values depending
4818 on virtually all of 'md'. This overcomes the 80 bit limitation.)
4821 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
4822 the handshake is continued after ssl_verify_cert_chain();
4823 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
4824 can lead to 'unexplainable' connection aborts later.
4825 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
4827 *) Major EVP API cipher revision.
4828 Add hooks for extra EVP features. This allows various cipher
4829 parameters to be set in the EVP interface. Support added for variable
4830 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
4831 setting of RC2 and RC5 parameters.
4833 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
4836 Remove lots of duplicated code from the EVP library. For example *every*
4837 cipher init() function handles the 'iv' in the same way according to the
4838 cipher mode. They also all do nothing if the 'key' parameter is NULL and
4839 for CFB and OFB modes they zero ctx->num.
4841 New functionality allows removal of S/MIME code RC2 hack.
4843 Most of the routines have the same form and so can be declared in terms
4846 By shifting this to the top level EVP_CipherInit() it can be removed from
4847 all individual ciphers. If the cipher wants to handle IVs or keys
4848 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
4851 Change lots of functions like EVP_EncryptUpdate() to now return a
4852 value: although software versions of the algorithms cannot fail
4853 any installed hardware versions can.
4856 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
4857 this option is set, tolerate broken clients that send the negotiated
4858 protocol version number instead of the requested protocol version
4862 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
4863 i.e. non-zero for export ciphersuites, zero otherwise.
4864 Previous versions had this flag inverted, inconsistent with
4865 rsa_tmp_cb (..._TMP_RSA_CB).
4866 [Bodo Moeller; problem reported by Amit Chopra]
4868 *) Add missing DSA library text string. Work around for some IIS
4869 key files with invalid SEQUENCE encoding.
4872 *) Add a document (doc/standards.txt) that list all kinds of standards
4873 and so on that are implemented in OpenSSL.
4876 *) Enhance c_rehash script. Old version would mishandle certificates
4877 with the same subject name hash and wouldn't handle CRLs at all.
4878 Added -fingerprint option to crl utility, to support new c_rehash
4882 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
4885 *) Fix for SSL server purpose checking. Server checking was
4886 rejecting certificates which had extended key usage present
4887 but no ssl client purpose.
4888 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
4890 *) Make PKCS#12 code work with no password. The PKCS#12 spec
4891 is a little unclear about how a blank password is handled.
4892 Since the password in encoded as a BMPString with terminating
4893 double NULL a zero length password would end up as just the
4894 double NULL. However no password at all is different and is
4895 handled differently in the PKCS#12 key generation code. NS
4896 treats a blank password as zero length. MSIE treats it as no
4897 password on export: but it will try both on import. We now do
4898 the same: PKCS12_parse() tries zero length and no password if
4899 the password is set to "" or NULL (NULL is now a valid password:
4900 it wasn't before) as does the pkcs12 application.
4903 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
4904 perror when PEM_read_bio_X509_REQ fails, the error message must
4905 be obtained from the error queue.
4908 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
4909 it in ERR_remove_state if appropriate, and change ERR_get_state
4910 accordingly to avoid race conditions (this is necessary because
4911 thread_hash is no longer constant once set).
4914 *) Bugfix for linux-elf makefile.one.
4917 *) RSA_get_default_method() will now cause a default
4918 RSA_METHOD to be chosen if one doesn't exist already.
4919 Previously this was only set during a call to RSA_new()
4920 or RSA_new_method(NULL) meaning it was possible for
4921 RSA_get_default_method() to return NULL.
4924 *) Added native name translation to the existing DSO code
4925 that will convert (if the flag to do so is set) filenames
4926 that are sufficiently small and have no path information
4927 into a canonical native form. Eg. "blah" converted to
4928 "libblah.so" or "blah.dll" etc.
4931 *) New function ERR_error_string_n(e, buf, len) which is like
4932 ERR_error_string(e, buf), but writes at most 'len' bytes
4933 including the 0 terminator. For ERR_error_string_n, 'buf'
4935 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
4937 *) CONF library reworked to become more general. A new CONF
4938 configuration file reader "class" is implemented as well as a
4939 new functions (NCONF_*, for "New CONF") to handle it. The now
4940 old CONF_* functions are still there, but are reimplemented to
4941 work in terms of the new functions. Also, a set of functions
4942 to handle the internal storage of the configuration data is
4943 provided to make it easier to write new configuration file
4944 reader "classes" (I can definitely see something reading a
4945 configuration file in XML format, for example), called _CONF_*,
4946 or "the configuration storage API"...
4948 The new configuration file reading functions are:
4950 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
4951 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
4953 NCONF_default, NCONF_WIN32
4955 NCONF_dump_fp, NCONF_dump_bio
4957 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
4958 NCONF_new creates a new CONF object. This works in the same way
4959 as other interfaces in OpenSSL, like the BIO interface.
4960 NCONF_dump_* dump the internal storage of the configuration file,
4961 which is useful for debugging. All other functions take the same
4962 arguments as the old CONF_* functions wth the exception of the
4963 first that must be a `CONF *' instead of a `LHASH *'.
4965 To make it easer to use the new classes with the old CONF_* functions,
4966 the function CONF_set_default_method is provided.
4969 *) Add '-tls1' option to 'openssl ciphers', which was already
4970 mentioned in the documentation but had not been implemented.
4971 (This option is not yet really useful because even the additional
4972 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
4975 *) Initial DSO code added into libcrypto for letting OpenSSL (and
4976 OpenSSL-based applications) load shared libraries and bind to
4977 them in a portable way.
4978 [Geoff Thorpe, with contributions from Richard Levitte]
4980 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
4982 *) Make sure _lrotl and _lrotr are only used with MSVC.
4984 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
4985 (the default implementation of RAND_status).
4987 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
4988 to '-clrext' (= clear extensions), as intended and documented.
4989 [Bodo Moeller; inconsistency pointed out by Michael Attili
4992 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
4993 was larger than the MD block size.
4994 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
4996 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
4997 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
4998 using the passed key: if the passed key was a private key the result
4999 of X509_print(), for example, would be to print out all the private key
5003 *) des_quad_cksum() byte order bug fix.
5004 [Ulf Möller, using the problem description in krb4-0.9.7, where
5005 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
5007 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
5009 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
5011 *) For easily testing in shell scripts whether some command
5012 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
5013 returns with exit code 0 iff no command of the given name is available.
5014 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
5015 the output goes to stdout and nothing is printed to stderr.
5016 Additional arguments are always ignored.
5018 Since for each cipher there is a command of the same name,
5019 the 'no-cipher' compilation switches can be tested this way.
5021 ('openssl no-XXX' is not able to detect pseudo-commands such
5022 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
5025 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
5028 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
5029 is set; it will be thrown away anyway because each handshake creates
5031 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
5032 to parameters -- in previous versions (since OpenSSL 0.9.3) the
5033 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
5034 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
5037 *) New s_client option -ign_eof: EOF at stdin is ignored, and
5038 'Q' and 'R' lose their special meanings (quit/renegotiate).
5039 This is part of what -quiet does; unlike -quiet, -ign_eof
5040 does not suppress any output.
5043 *) Add compatibility options to the purpose and trust code. The
5044 purpose X509_PURPOSE_ANY is "any purpose" which automatically
5045 accepts a certificate or CA, this was the previous behaviour,
5046 with all the associated security issues.
5048 X509_TRUST_COMPAT is the old trust behaviour: only and
5049 automatically trust self signed roots in certificate store. A
5050 new trust setting X509_TRUST_DEFAULT is used to specify that
5051 a purpose has no associated trust setting and it should instead
5052 use the value in the default purpose.
5055 *) Fix the PKCS#8 DSA private key code so it decodes keys again
5056 and fix a memory leak.
5059 *) In util/mkerr.pl (which implements 'make errors'), preserve
5060 reason strings from the previous version of the .c file, as
5061 the default to have only downcase letters (and digits) in
5062 automatically generated reasons codes is not always appropriate.
5065 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
5066 using strerror. Previously, ERR_reason_error_string() returned
5067 library names as reason strings for SYSerr; but SYSerr is a special
5068 case where small numbers are errno values, not library numbers.
5071 *) Add '-dsaparam' option to 'openssl dhparam' application. This
5072 converts DSA parameters into DH parameters. (When creating parameters,
5073 DSA_generate_parameters is used.)
5076 *) Include 'length' (recommended exponent length) in C code generated
5077 by 'openssl dhparam -C'.
5080 *) The second argument to set_label in perlasm was already being used
5081 so couldn't be used as a "file scope" flag. Moved to third argument
5085 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
5086 instead of RAND_bytes for encryption IVs and salts.
5089 *) Include RAND_status() into RAND_METHOD instead of implementing
5090 it only for md_rand.c Otherwise replacing the PRNG by calling
5091 RAND_set_rand_method would be impossible.
5094 *) Don't let DSA_generate_key() enter an infinite loop if the random
5095 number generation fails.
5098 *) New 'rand' application for creating pseudo-random output.
5101 *) Added configuration support for Linux/IA64
5102 [Rolf Haberrecker <rolf@suse.de>]
5104 *) Assembler module support for Mingw32.
5107 *) Shared library support for HPUX (in shlib/).
5108 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
5110 *) Shared library support for Solaris gcc.
5111 [Lutz Behnke <behnke@trustcenter.de>]
5113 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
5115 *) PKCS7_encrypt() was adding text MIME headers twice because they
5116 were added manually and by SMIME_crlf_copy().
5119 *) In bntest.c don't call BN_rand with zero bits argument.
5120 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
5122 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
5123 case was implemented. This caused BN_div_recp() to fail occasionally.
5126 *) Add an optional second argument to the set_label() in the perl
5127 assembly language builder. If this argument exists and is set
5128 to 1 it signals that the assembler should use a symbol whose
5129 scope is the entire file, not just the current function. This
5130 is needed with MASM which uses the format label:: for this scope.
5131 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
5133 *) Change the ASN1 types so they are typedefs by default. Before
5134 almost all types were #define'd to ASN1_STRING which was causing
5135 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
5139 *) Change names of new functions to the new get1/get0 naming
5140 convention: After 'get1', the caller owns a reference count
5141 and has to call ..._free; 'get0' returns a pointer to some
5142 data structure without incrementing reference counters.
5143 (Some of the existing 'get' functions increment a reference
5144 counter, some don't.)
5145 Similarly, 'set1' and 'add1' functions increase reference
5146 counters or duplicate objects.
5149 *) Allow for the possibility of temp RSA key generation failure:
5150 the code used to assume it always worked and crashed on failure.
5153 *) Fix potential buffer overrun problem in BIO_printf().
5154 [Ulf Möller, using public domain code by Patrick Powell; problem
5155 pointed out by David Sacerdote <das33@cornell.edu>]
5157 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
5158 RAND_egd() and RAND_status(). In the command line application,
5159 the EGD socket can be specified like a seed file using RANDFILE
5163 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
5164 Some CAs (e.g. Verisign) distribute certificates in this form.
5167 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
5168 list to exclude them. This means that no special compilation option
5169 is needed to use anonymous DH: it just needs to be included in the
5173 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
5174 EVP_MD_type. The old functionality is available in a new macro called
5175 EVP_MD_md(). Change code that uses it and update docs.
5178 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
5179 where the 'void *' argument is replaced by a function pointer argument.
5180 Previously 'void *' was abused to point to functions, which works on
5181 many platforms, but is not correct. As these functions are usually
5182 called by macros defined in OpenSSL header files, most source code
5183 should work without changes.
5186 *) <openssl/opensslconf.h> (which is created by Configure) now contains
5187 sections with information on -D... compiler switches used for
5188 compiling the library so that applications can see them. To enable
5189 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
5190 must be defined. E.g.,
5191 #define OPENSSL_ALGORITHM_DEFINES
5192 #include <openssl/opensslconf.h>
5193 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
5194 [Richard Levitte, Ulf and Bodo Möller]
5196 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
5200 *) Change the 'other' type in certificate aux info to a STACK_OF
5201 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
5202 the required ASN1 format: arbitrary types determined by an OID.
5205 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
5206 argument to 'req'. This is not because the function is newer or
5207 better than others it just uses the work 'NEW' in the certificate
5208 request header lines. Some software needs this.
5211 *) Reorganise password command line arguments: now passwords can be
5212 obtained from various sources. Delete the PEM_cb function and make
5213 it the default behaviour: i.e. if the callback is NULL and the
5214 usrdata argument is not NULL interpret it as a null terminated pass
5215 phrase. If usrdata and the callback are NULL then the pass phrase
5216 is prompted for as usual.
5219 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
5220 the support is automatically enabled. The resulting binaries will
5221 autodetect the card and use it if present.
5222 [Ben Laurie and Compaq Inc.]
5224 *) Work around for Netscape hang bug. This sends certificate request
5225 and server done in one record. Since this is perfectly legal in the
5226 SSL/TLS protocol it isn't a "bug" option and is on by default. See
5227 the bugs/SSLv3 entry for more info.
5230 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
5233 *) Add -rand argument to smime and pkcs12 applications and read/write
5237 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
5240 *) Add command line password options to the remaining applications.
5243 *) Bug fix for BN_div_recp() for numerators with an even number of
5247 *) More tests in bntest.c, and changed test_bn output.
5250 *) ./config recognizes MacOS X now.
5253 *) Bug fix for BN_div() when the first words of num and divsor are
5254 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
5257 *) Add support for various broken PKCS#8 formats, and command line
5258 options to produce them.
5261 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
5262 get temporary BIGNUMs from a BN_CTX.
5265 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
5269 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
5270 include a #define from the old name to the new. The original intent
5271 was that statically linked binaries could for example just call
5272 SSLeay_add_all_ciphers() to just add ciphers to the table and not
5273 link with digests. This never worked becayse SSLeay_add_all_digests()
5274 and SSLeay_add_all_ciphers() were in the same source file so calling
5275 one would link with the other. They are now in separate source files.
5278 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
5281 *) Use a less unusual form of the Miller-Rabin primality test (it used
5282 a binary algorithm for exponentiation integrated into the Miller-Rabin
5283 loop, our standard modexp algorithms are faster).
5286 *) Support for the EBCDIC character set completed.
5287 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
5289 *) Source code cleanups: use const where appropriate, eliminate casts,
5290 use void * instead of char * in lhash.
5293 *) Bugfix: ssl3_send_server_key_exchange was not restartable
5294 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
5295 this the server could overwrite ephemeral keys that the client
5299 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
5300 using 50 iterations of the Rabin-Miller test.
5302 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
5303 iterations of the Rabin-Miller test as required by the appendix
5304 to FIPS PUB 186[-1]) instead of DSA_is_prime.
5305 As BN_is_prime_fasttest includes trial division, DSA parameter
5306 generation becomes much faster.
5308 This implies a change for the callback functions in DSA_is_prime
5309 and DSA_generate_parameters: The callback function is called once
5310 for each positive witness in the Rabin-Miller test, not just
5311 occasionally in the inner loop; and the parameters to the
5312 callback function now provide an iteration count for the outer
5313 loop rather than for the current invocation of the inner loop.
5314 DSA_generate_parameters additionally can call the callback
5315 function with an 'iteration count' of -1, meaning that a
5316 candidate has passed the trial division test (when q is generated
5317 from an application-provided seed, trial division is skipped).
5320 *) New function BN_is_prime_fasttest that optionally does trial
5321 division before starting the Rabin-Miller test and has
5322 an additional BN_CTX * argument (whereas BN_is_prime always
5323 has to allocate at least one BN_CTX).
5324 'callback(1, -1, cb_arg)' is called when a number has passed the
5325 trial division stage.
5328 *) Fix for bug in CRL encoding. The validity dates weren't being handled
5332 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
5335 *) New function BN_pseudo_rand().
5338 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
5339 bignum version of BN_from_montgomery() with the working code from
5340 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
5344 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
5345 made it impossible to use the same SSL_SESSION data structure in
5346 SSL2 clients in multiple threads.
5349 *) The return value of RAND_load_file() no longer counts bytes obtained
5350 by stat(). RAND_load_file(..., -1) is new and uses the complete file
5351 to seed the PRNG (previously an explicit byte count was required).
5352 [Ulf Möller, Bodo Möller]
5354 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
5355 used (char *) instead of (void *) and had casts all over the place.
5358 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
5361 *) Retain source code compatibility for BN_prime_checks macro:
5362 BN_is_prime(..., BN_prime_checks, ...) now uses
5363 BN_prime_checks_for_size to determine the appropriate number of
5364 Rabin-Miller iterations.
5367 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
5368 DH_CHECK_P_NOT_SAFE_PRIME.
5369 (Check if this is true? OpenPGP calls them "strong".)
5372 *) Merge the functionality of "dh" and "gendh" programs into a new program
5373 "dhparam". The old programs are retained for now but will handle DH keys
5374 (instead of parameters) in future.
5377 *) Make the ciphers, s_server and s_client programs check the return values
5378 when a new cipher list is set.
5381 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
5382 ciphers. Before when the 56bit ciphers were enabled the sorting was
5385 The syntax for the cipher sorting has been extended to support sorting by
5386 cipher-strength (using the strength_bits hard coded in the tables).
5387 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
5389 Fix a bug in the cipher-command parser: when supplying a cipher command
5390 string with an "undefined" symbol (neither command nor alphanumeric
5391 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
5392 an error is flagged.
5394 Due to the strength-sorting extension, the code of the
5395 ssl_create_cipher_list() function was completely rearranged. I hope that
5396 the readability was also increased :-)
5397 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5399 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
5400 for the first serial number and places 2 in the serial number file. This
5401 avoids problems when the root CA is created with serial number zero and
5402 the first user certificate has the same issuer name and serial number
5406 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
5407 the new code. Add documentation for this stuff.
5410 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
5411 X509_*() to X509at_*() on the grounds that they don't handle X509
5412 structures and behave in an analagous way to the X509v3 functions:
5413 they shouldn't be called directly but wrapper functions should be used
5416 So we also now have some wrapper functions that call the X509at functions
5417 when passed certificate requests. (TO DO: similar things can be done with
5418 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
5419 things. Some of these need some d2i or i2d and print functionality
5420 because they handle more complex structures.)
5423 *) Add missing #ifndefs that caused missing symbols when building libssl
5424 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
5425 NO_RSA in ssl/s2*.c.
5426 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
5428 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
5429 has a return value which indicates the quality of the random data
5430 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
5431 error queue. New function RAND_pseudo_bytes() generates output that is
5432 guaranteed to be unique but not unpredictable. RAND_add is like
5433 RAND_seed, but takes an extra argument for an entropy estimate
5434 (RAND_seed always assumes full entropy).
5437 *) Do more iterations of Rabin-Miller probable prime test (specifically,
5438 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
5439 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
5440 in crypto/bn/bn_prime.c for the complete table). This guarantees a
5441 false-positive rate of at most 2^-80 for random input.
5444 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
5447 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
5448 in the 0.9.5 release), this returns the chain
5449 from an X509_CTX structure with a dup of the stack and all
5450 the X509 reference counts upped: so the stack will exist
5451 after X509_CTX_cleanup() has been called. Modify pkcs12.c
5454 Also make SSL_SESSION_print() print out the verify return
5458 *) Add manpage for the pkcs12 command. Also change the default
5459 behaviour so MAC iteration counts are used unless the new
5460 -nomaciter option is used. This improves file security and
5461 only older versions of MSIE (4.0 for example) need it.
5464 *) Honor the no-xxx Configure options when creating .DEF files.
5467 *) Add PKCS#10 attributes to field table: challengePassword,
5468 unstructuredName and unstructuredAddress. These are taken from
5469 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
5470 international characters are used.
5472 More changes to X509_ATTRIBUTE code: allow the setting of types
5473 based on strings. Remove the 'loc' parameter when adding
5474 attributes because these will be a SET OF encoding which is sorted
5478 *) Initial changes to the 'req' utility to allow request generation
5479 automation. This will allow an application to just generate a template
5480 file containing all the field values and have req construct the
5483 Initial support for X509_ATTRIBUTE handling. Stacks of these are
5484 used all over the place including certificate requests and PKCS#7
5485 structures. They are currently handled manually where necessary with
5486 some primitive wrappers for PKCS#7. The new functions behave in a
5487 manner analogous to the X509 extension functions: they allow
5488 attributes to be looked up by NID and added.
5490 Later something similar to the X509V3 code would be desirable to
5491 automatically handle the encoding, decoding and printing of the
5492 more complex types. The string types like challengePassword can
5493 be handled by the string table functions.
5495 Also modified the multi byte string table handling. Now there is
5496 a 'global mask' which masks out certain types. The table itself
5497 can use the flag STABLE_NO_MASK to ignore the mask setting: this
5498 is useful when for example there is only one permissible type
5499 (as in countryName) and using the mask might result in no valid
5503 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
5504 SSL_get_peer_finished to allow applications to obtain the latest
5505 Finished messages sent to the peer or expected from the peer,
5506 respectively. (SSL_get_peer_finished is usually the Finished message
5507 actually received from the peer, otherwise the protocol will be aborted.)
5509 As the Finished message are message digests of the complete handshake
5510 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
5511 be used for external authentication procedures when the authentication
5512 provided by SSL/TLS is not desired or is not enough.
5515 *) Enhanced support for Alpha Linux is added. Now ./config checks if
5516 the host supports BWX extension and if Compaq C is present on the
5517 $PATH. Just exploiting of the BWX extension results in 20-30%
5518 performance kick for some algorithms, e.g. DES and RC4 to mention
5519 a couple. Compaq C in turn generates ~20% faster code for MD5 and
5523 *) Add support for MS "fast SGC". This is arguably a violation of the
5524 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
5525 weak crypto and after checking the certificate is SGC a second one
5526 with strong crypto. MS SGC stops the first handshake after receiving
5527 the server certificate message and sends a second client hello. Since
5528 a server will typically do all the time consuming operations before
5529 expecting any further messages from the client (server key exchange
5530 is the most expensive) there is little difference between the two.
5532 To get OpenSSL to support MS SGC we have to permit a second client
5533 hello message after we have sent server done. In addition we have to
5534 reset the MAC if we do get this second client hello.
5537 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
5538 if a DER encoded private key is RSA or DSA traditional format. Changed
5539 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
5540 format DER encoded private key. Newer code should use PKCS#8 format which
5541 has the key type encoded in the ASN1 structure. Added DER private key
5542 support to pkcs8 application.
5545 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
5546 ciphersuites has been selected (as required by the SSL 3/TLS 1
5547 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
5548 is set, we interpret this as a request to violate the specification
5549 (the worst that can happen is a handshake failure, and 'correct'
5550 behaviour would result in a handshake failure anyway).
5553 *) In SSL_CTX_add_session, take into account that there might be multiple
5554 SSL_SESSION structures with the same session ID (e.g. when two threads
5555 concurrently obtain them from an external cache).
5556 The internal cache can handle only one SSL_SESSION with a given ID,
5557 so if there's a conflict, we now throw out the old one to achieve
5561 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
5562 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
5563 some routines that use cipher OIDs: some ciphers do not have OIDs
5564 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
5568 *) Simplify the trust setting structure and code. Now we just have
5569 two sequences of OIDs for trusted and rejected settings. These will
5570 typically have values the same as the extended key usage extension
5571 and any application specific purposes.
5573 The trust checking code now has a default behaviour: it will just
5574 check for an object with the same NID as the passed id. Functions can
5575 be provided to override either the default behaviour or the behaviour
5576 for a given id. SSL client, server and email already have functions
5577 in place for compatibility: they check the NID and also return "trusted"
5578 if the certificate is self signed.
5581 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
5582 traditional format into an EVP_PKEY structure.
5585 *) Add a password callback function PEM_cb() which either prompts for
5586 a password if usr_data is NULL or otherwise assumes it is a null
5587 terminated password. Allow passwords to be passed on command line
5588 environment or config files in a few more utilities.
5591 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
5592 keys. Add some short names for PKCS#8 PBE algorithms and allow them
5593 to be specified on the command line for the pkcs8 and pkcs12 utilities.
5594 Update documentation.
5597 *) Support for ASN1 "NULL" type. This could be handled before by using
5598 ASN1_TYPE but there wasn't any function that would try to read a NULL
5599 and produce an error if it couldn't. For compatibility we also have
5600 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
5601 don't allocate anything because they don't need to.
5604 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
5606 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
5608 *) Rebuild of the memory allocation routines used by OpenSSL code and
5609 possibly others as well. The purpose is to make an interface that
5610 provide hooks so anyone can build a separate set of allocation and
5611 deallocation routines to be used by OpenSSL, for example memory
5612 pool implementations, or something else, which was previously hard
5613 since Malloc(), Realloc() and Free() were defined as macros having
5614 the values malloc, realloc and free, respectively (except for Win32
5615 compilations). The same is provided for memory debugging code.
5616 OpenSSL already comes with functionality to find memory leaks, but
5617 this gives people a chance to debug other memory problems.
5619 With these changes, a new set of functions and macros have appeared:
5621 CRYPTO_set_mem_debug_functions() [F]
5622 CRYPTO_get_mem_debug_functions() [F]
5623 CRYPTO_dbg_set_options() [F]
5624 CRYPTO_dbg_get_options() [F]
5625 CRYPTO_malloc_debug_init() [M]
5627 The memory debug functions are NULL by default, unless the library
5628 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
5629 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
5630 gives the standard debugging functions that come with OpenSSL) or
5631 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
5632 provided by the library user) must be used. When the standard
5633 debugging functions are used, CRYPTO_dbg_set_options can be used to
5634 request additional information:
5635 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
5636 the CRYPTO_MDEBUG_xxx macro when compiling the library.
5638 Also, things like CRYPTO_set_mem_functions will always give the
5639 expected result (the new set of functions is used for allocation
5640 and deallocation) at all times, regardless of platform and compiler
5643 To finish it up, some functions that were never use in any other
5644 way than through macros have a new API and new semantic:
5647 CRYPTO_dbg_realloc()
5650 All macros of value have retained their old syntax.
5651 [Richard Levitte and Bodo Moeller]
5653 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
5654 ordering of SMIMECapabilities wasn't in "strength order" and there
5655 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
5659 *) Some ASN1 types with illegal zero length encoding (INTEGER,
5660 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
5661 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
5663 *) Merge in my S/MIME library for OpenSSL. This provides a simple
5664 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
5665 functionality to handle multipart/signed properly) and a utility
5666 called 'smime' to call all this stuff. This is based on code I
5667 originally wrote for Celo who have kindly allowed it to be
5668 included in OpenSSL.
5671 *) Add variants des_set_key_checked and des_set_key_unchecked of
5672 des_set_key (aka des_key_sched). Global variable des_check_key
5673 decides which of these is called by des_set_key; this way
5674 des_check_key behaves as it always did, but applications and
5675 the library itself, which was buggy for des_check_key == 1,
5676 have a cleaner way to pick the version they need.
5679 *) New function PKCS12_newpass() which changes the password of a
5683 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
5684 dynamic mix. In both cases the ids can be used as an index into the
5685 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
5686 functions so they accept a list of the field values and the
5687 application doesn't need to directly manipulate the X509_TRUST
5691 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
5695 *) Modify the way the V3 extension code looks up extensions. This now
5696 works in a similar way to the object code: we have some "standard"
5697 extensions in a static table which is searched with OBJ_bsearch()
5698 and the application can add dynamic ones if needed. The file
5699 crypto/x509v3/ext_dat.h now has the info: this file needs to be
5700 updated whenever a new extension is added to the core code and kept
5701 in ext_nid order. There is a simple program 'tabtest.c' which checks
5702 this. New extensions are not added too often so this file can readily
5703 be maintained manually.
5705 There are two big advantages in doing things this way. The extensions
5706 can be looked up immediately and no longer need to be "added" using
5707 X509V3_add_standard_extensions(): this function now does nothing.
5708 [Side note: I get *lots* of email saying the extension code doesn't
5709 work because people forget to call this function]
5710 Also no dynamic allocation is done unless new extensions are added:
5711 so if we don't add custom extensions there is no need to call
5712 X509V3_EXT_cleanup().
5715 *) Modify enc utility's salting as follows: make salting the default. Add a
5716 magic header, so unsalted files fail gracefully instead of just decrypting
5717 to garbage. This is because not salting is a big security hole, so people
5718 should be discouraged from doing it.
5721 *) Fixes and enhancements to the 'x509' utility. It allowed a message
5722 digest to be passed on the command line but it only used this
5723 parameter when signing a certificate. Modified so all relevant
5724 operations are affected by the digest parameter including the
5725 -fingerprint and -x509toreq options. Also -x509toreq choked if a
5726 DSA key was used because it didn't fix the digest.
5729 *) Initial certificate chain verify code. Currently tests the untrusted
5730 certificates for consistency with the verify purpose (which is set
5731 when the X509_STORE_CTX structure is set up) and checks the pathlength.
5733 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
5734 this is because it will reject chains with invalid extensions whereas
5735 every previous version of OpenSSL and SSLeay made no checks at all.
5737 Trust code: checks the root CA for the relevant trust settings. Trust
5738 settings have an initial value consistent with the verify purpose: e.g.
5739 if the verify purpose is for SSL client use it expects the CA to be
5740 trusted for SSL client use. However the default value can be changed to
5741 permit custom trust settings: one example of this would be to only trust
5742 certificates from a specific "secure" set of CAs.
5744 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
5745 which should be used for version portability: especially since the
5746 verify structure is likely to change more often now.
5748 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
5749 to set them. If not set then assume SSL clients will verify SSL servers
5752 Two new options to the verify program: -untrusted allows a set of
5753 untrusted certificates to be passed in and -purpose which sets the
5754 intended purpose of the certificate. If a purpose is set then the
5755 new chain verify code is used to check extension consistency.
5758 *) Support for the authority information access extension.
5761 *) Modify RSA and DSA PEM read routines to transparently handle
5762 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
5763 public keys in a format compatible with certificate
5764 SubjectPublicKeyInfo structures. Unfortunately there were already
5765 functions called *_PublicKey_* which used various odd formats so
5766 these are retained for compatibility: however the DSA variants were
5767 never in a public release so they have been deleted. Changed dsa/rsa
5768 utilities to handle the new format: note no releases ever handled public
5769 keys so we should be OK.
5771 The primary motivation for this change is to avoid the same fiasco
5772 that dogs private keys: there are several incompatible private key
5773 formats some of which are standard and some OpenSSL specific and
5774 require various evil hacks to allow partial transparent handling and
5775 even then it doesn't work with DER formats. Given the option anything
5776 other than PKCS#8 should be dumped: but the other formats have to
5777 stay in the name of compatibility.
5779 With public keys and the benefit of hindsight one standard format
5780 is used which works with EVP_PKEY, RSA or DSA structures: though
5781 it clearly returns an error if you try to read the wrong kind of key.
5783 Added a -pubkey option to the 'x509' utility to output the public key.
5784 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
5785 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
5786 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
5787 that do the same as the EVP_PKEY_assign_*() except they up the
5788 reference count of the added key (they don't "swallow" the
5792 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
5793 CRLs would fail if the file contained no certificates or no CRLs:
5794 added a new function to read in both types and return the number
5795 read: this means that if none are read it will be an error. The
5796 DER versions of the certificate and CRL reader would always fail
5797 because it isn't possible to mix certificates and CRLs in DER format
5798 without choking one or the other routine. Changed this to just read
5799 a certificate: this is the best we can do. Also modified the code
5800 in apps/verify.c to take notice of return codes: it was previously
5801 attempting to read in certificates from NULL pointers and ignoring
5802 any errors: this is one reason why the cert and CRL reader seemed
5803 to work. It doesn't check return codes from the default certificate
5804 routines: these may well fail if the certificates aren't installed.
5807 *) Code to support otherName option in GeneralName.
5810 *) First update to verify code. Change the verify utility
5811 so it warns if it is passed a self signed certificate:
5812 for consistency with the normal behaviour. X509_verify
5813 has been modified to it will now verify a self signed
5814 certificate if *exactly* the same certificate appears
5815 in the store: it was previously impossible to trust a
5816 single self signed certificate. This means that:
5817 openssl verify ss.pem
5818 now gives a warning about a self signed certificate but
5819 openssl verify -CAfile ss.pem ss.pem
5823 *) For servers, store verify_result in SSL_SESSION data structure
5824 (and add it to external session representation).
5825 This is needed when client certificate verifications fails,
5826 but an application-provided verification callback (set by
5827 SSL_CTX_set_cert_verify_callback) allows accepting the session
5828 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
5829 but returns 1): When the session is reused, we have to set
5830 ssl->verify_result to the appropriate error code to avoid
5832 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
5834 *) Fix a bug in the new PKCS#7 code: it didn't consider the
5835 case in PKCS7_dataInit() where the signed PKCS7 structure
5836 didn't contain any existing data because it was being created.
5837 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
5839 *) Add a salt to the key derivation routines in enc.c. This
5840 forms the first 8 bytes of the encrypted file. Also add a
5841 -S option to allow a salt to be input on the command line.
5844 *) New function X509_cmp(). Oddly enough there wasn't a function
5845 to compare two certificates. We do this by working out the SHA1
5846 hash and comparing that. X509_cmp() will be needed by the trust
5850 *) SSL_get1_session() is like SSL_get_session(), but increments
5851 the reference count in the SSL_SESSION returned.
5852 [Geoff Thorpe <geoff@eu.c2.net>]
5854 *) Fix for 'req': it was adding a null to request attributes.
5855 Also change the X509_LOOKUP and X509_INFO code to handle
5856 certificate auxiliary information.
5859 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
5863 *) Add the possibility to add extra information to the memory leak
5864 detecting output, to form tracebacks, showing from where each
5865 allocation was originated: CRYPTO_push_info("constant string") adds
5866 the string plus current file name and line number to a per-thread
5867 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
5868 is like calling CYRPTO_pop_info() until the stack is empty.
5869 Also updated memory leak detection code to be multi-thread-safe.
5872 *) Add options -text and -noout to pkcs7 utility and delete the
5873 encryption options which never did anything. Update docs.
5876 *) Add options to some of the utilities to allow the pass phrase
5877 to be included on either the command line (not recommended on
5878 OSes like Unix) or read from the environment. Update the
5879 manpages and fix a few bugs.
5882 *) Add a few manpages for some of the openssl commands.
5885 *) Fix the -revoke option in ca. It was freeing up memory twice,
5886 leaking and not finding already revoked certificates.
5889 *) Extensive changes to support certificate auxiliary information.
5890 This involves the use of X509_CERT_AUX structure and X509_AUX
5891 functions. An X509_AUX function such as PEM_read_X509_AUX()
5892 can still read in a certificate file in the usual way but it
5893 will also read in any additional "auxiliary information". By
5894 doing things this way a fair degree of compatibility can be
5895 retained: existing certificates can have this information added
5896 using the new 'x509' options.
5898 Current auxiliary information includes an "alias" and some trust
5899 settings. The trust settings will ultimately be used in enhanced
5900 certificate chain verification routines: currently a certificate
5901 can only be trusted if it is self signed and then it is trusted
5905 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
5906 The problem was that one of the replacement routines had not been working
5907 since SSLeay releases. For now the offending routine has been replaced
5908 with non-optimised assembler. Even so, this now gives around 95%
5909 performance improvement for 1024 bit RSA signs.
5912 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
5913 handling. Most clients have the effective key size in bits equal to
5914 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
5915 A few however don't do this and instead use the size of the decrypted key
5916 to determine the RC2 key length and the AlgorithmIdentifier to determine
5917 the effective key length. In this case the effective key length can still
5918 be 40 bits but the key length can be 168 bits for example. This is fixed
5919 by manually forcing an RC2 key into the EVP_PKEY structure because the
5920 EVP code can't currently handle unusual RC2 key sizes: it always assumes
5921 the key length and effective key length are equal.
5924 *) Add a bunch of functions that should simplify the creation of
5925 X509_NAME structures. Now you should be able to do:
5926 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
5927 and have it automatically work out the correct field type and fill in
5928 the structures. The more adventurous can try:
5929 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
5930 and it will (hopefully) work out the correct multibyte encoding.
5933 *) Change the 'req' utility to use the new field handling and multibyte
5934 copy routines. Before the DN field creation was handled in an ad hoc
5935 way in req, ca, and x509 which was rather broken and didn't support
5936 BMPStrings or UTF8Strings. Since some software doesn't implement
5937 BMPStrings or UTF8Strings yet, they can be enabled using the config file
5938 using the dirstring_type option. See the new comment in the default
5939 openssl.cnf for more info.
5942 *) Make crypto/rand/md_rand.c more robust:
5943 - Assure unique random numbers after fork().
5944 - Make sure that concurrent threads access the global counter and
5945 md serializably so that we never lose entropy in them
5946 or use exactly the same state in multiple threads.
5947 Access to the large state is not always serializable because
5948 the additional locking could be a performance killer, and
5949 md should be large enough anyway.
5952 *) New file apps/app_rand.c with commonly needed functionality
5953 for handling the random seed file.
5955 Use the random seed file in some applications that previously did not:
5957 dsaparam -genkey (which also ignored its '-rand' option),
5960 x509 (when signing).
5961 Except on systems with /dev/urandom, it is crucial to have a random
5962 seed file at least for key creation, DSA signing, and for DH exchanges;
5963 for RSA signatures we could do without one.
5965 gendh and gendsa (unlike genrsa) used to read only the first byte
5966 of each file listed in the '-rand' option. The function as previously
5967 found in genrsa is now in app_rand.c and is used by all programs
5968 that support '-rand'.
5971 *) In RAND_write_file, use mode 0600 for creating files;
5972 don't just chmod when it may be too late.
5975 *) Report an error from X509_STORE_load_locations
5976 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
5979 *) New function ASN1_mbstring_copy() this copies a string in either
5980 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
5981 into an ASN1_STRING type. A mask of permissible types is passed
5982 and it chooses the "minimal" type to use or an error if not type
5986 *) Add function equivalents to the various macros in asn1.h. The old
5987 macros are retained with an M_ prefix. Code inside the library can
5988 use the M_ macros. External code (including the openssl utility)
5989 should *NOT* in order to be "shared library friendly".
5992 *) Add various functions that can check a certificate's extensions
5993 to see if it usable for various purposes such as SSL client,
5994 server or S/MIME and CAs of these types. This is currently
5995 VERY EXPERIMENTAL but will ultimately be used for certificate chain
5996 verification. Also added a -purpose flag to x509 utility to
5997 print out all the purposes.
6000 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
6004 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
6005 for, obtain and decode and extension and obtain its critical flag.
6006 This allows all the necessary extension code to be handled in a
6007 single function call.
6010 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
6011 platforms. See crypto/rc4/rc4_enc.c for further details.
6014 *) New -noout option to asn1parse. This causes no output to be produced
6015 its main use is when combined with -strparse and -out to extract data
6016 from a file (which may not be in ASN.1 format).
6019 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
6020 when producing the local key id.
6021 [Richard Levitte <levitte@stacken.kth.se>]
6023 *) New option -dhparam in s_server. This allows a DH parameter file to be
6024 stated explicitly. If it is not stated then it tries the first server
6025 certificate file. The previous behaviour hard coded the filename
6029 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
6030 a public key to be input or output. For example:
6031 openssl rsa -in key.pem -pubout -out pubkey.pem
6032 Also added necessary DSA public key functions to handle this.
6035 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
6036 in the message. This was handled by allowing
6037 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
6038 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
6040 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
6041 to the end of the strings whereas this didn't. This would cause problems
6042 if strings read with d2i_ASN1_bytes() were later modified.
6043 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
6045 *) Fix for base64 decode bug. When a base64 bio reads only one line of
6046 data and it contains EOF it will end up returning an error. This is
6047 caused by input 46 bytes long. The cause is due to the way base64
6048 BIOs find the start of base64 encoded data. They do this by trying a
6049 trial decode on each line until they find one that works. When they
6050 do a flag is set and it starts again knowing it can pass all the
6051 data directly through the decoder. Unfortunately it doesn't reset
6052 the context it uses. This means that if EOF is reached an attempt
6053 is made to pass two EOFs through the context and this causes the
6054 resulting error. This can also cause other problems as well. As is
6055 usual with these problems it takes *ages* to find and the fix is
6056 trivial: move one line.
6057 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
6059 *) Ugly workaround to get s_client and s_server working under Windows. The
6060 old code wouldn't work because it needed to select() on sockets and the
6061 tty (for keypresses and to see if data could be written). Win32 only
6062 supports select() on sockets so we select() with a 1s timeout on the
6063 sockets and then see if any characters are waiting to be read, if none
6064 are present then we retry, we also assume we can always write data to
6065 the tty. This isn't nice because the code then blocks until we've
6066 received a complete line of data and it is effectively polling the
6067 keyboard at 1s intervals: however it's quite a bit better than not
6068 working at all :-) A dedicated Windows application might handle this
6069 with an event loop for example.
6072 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
6073 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
6074 will be called when RSA_sign() and RSA_verify() are used. This is useful
6075 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
6076 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
6077 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
6078 This necessitated the support of an extra signature type NID_md5_sha1
6079 for SSL signatures and modifications to the SSL library to use it instead
6080 of calling RSA_public_decrypt() and RSA_private_encrypt().
6083 *) Add new -verify -CAfile and -CApath options to the crl program, these
6084 will lookup a CRL issuers certificate and verify the signature in a
6085 similar way to the verify program. Tidy up the crl program so it
6086 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
6087 less strict. It will now permit CRL extensions even if it is not
6088 a V2 CRL: this will allow it to tolerate some broken CRLs.
6091 *) Initialize all non-automatic variables each time one of the openssl
6092 sub-programs is started (this is necessary as they may be started
6093 multiple times from the "OpenSSL>" prompt).
6094 [Lennart Bang, Bodo Moeller]
6096 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
6097 removing all other RSA functionality (this is what NO_RSA does). This
6098 is so (for example) those in the US can disable those operations covered
6099 by the RSA patent while allowing storage and parsing of RSA keys and RSA
6103 *) Non-copying interface to BIO pairs.
6104 (still largely untested)
6107 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
6108 ASCII string. This was handled independently in various places before.
6111 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
6112 UTF8 strings a character at a time.
6115 *) Use client_version from client hello to select the protocol
6116 (s23_srvr.c) and for RSA client key exchange verification
6117 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
6120 *) Add various utility functions to handle SPKACs, these were previously
6121 handled by poking round in the structure internals. Added new function
6122 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
6123 print, verify and generate SPKACs. Based on an original idea from
6124 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
6127 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
6130 *) Allow the config file extension section to be overwritten on the
6131 command line. Based on an original idea from Massimiliano Pala
6132 <madwolf@comune.modena.it>. The new option is called -extensions
6133 and can be applied to ca, req and x509. Also -reqexts to override
6134 the request extensions in req and -crlexts to override the crl extensions
6138 *) Add new feature to the SPKAC handling in ca. Now you can include
6139 the same field multiple times by preceding it by "XXXX." for example:
6142 this is the same syntax as used in the req config file.
6145 *) Allow certificate extensions to be added to certificate requests. These
6146 are specified in a 'req_extensions' option of the req section of the
6147 config file. They can be printed out with the -text option to req but
6148 are otherwise ignored at present.
6151 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
6152 data read consists of only the final block it would not decrypted because
6153 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
6154 A misplaced 'break' also meant the decrypted final block might not be
6155 copied until the next read.
6158 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
6159 a few extra parameters to the DH structure: these will be useful if
6160 for example we want the value of 'q' or implement X9.42 DH.
6163 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
6164 provides hooks that allow the default DSA functions or functions on a
6165 "per key" basis to be replaced. This allows hardware acceleration and
6166 hardware key storage to be handled without major modification to the
6167 library. Also added low level modexp hooks and CRYPTO_EX structure and
6168 associated functions.
6171 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
6172 as "read only": it can't be written to and the buffer it points to will
6173 not be freed. Reading from a read only BIO is much more efficient than
6174 a normal memory BIO. This was added because there are several times when
6175 an area of memory needs to be read from a BIO. The previous method was
6176 to create a memory BIO and write the data to it, this results in two
6177 copies of the data and an O(n^2) reading algorithm. There is a new
6178 function BIO_new_mem_buf() which creates a read only memory BIO from
6179 an area of memory. Also modified the PKCS#7 routines to use read only
6183 *) Bugfix: ssl23_get_client_hello did not work properly when called in
6184 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
6185 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
6186 but a retry condition occured while trying to read the rest.
6189 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
6190 NID_pkcs7_encrypted by default: this was wrong since this should almost
6191 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
6192 the encrypted data type: this is a more sensible place to put it and it
6193 allows the PKCS#12 code to be tidied up that duplicated this
6197 *) Changed obj_dat.pl script so it takes its input and output files on
6198 the command line. This should avoid shell escape redirection problems
6202 *) Initial support for certificate extension requests, these are included
6203 in things like Xenroll certificate requests. Included functions to allow
6204 extensions to be obtained and added.
6207 *) -crlf option to s_client and s_server for sending newlines as
6208 CRLF (as required by many protocols).
6211 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
6213 *) Install libRSAglue.a when OpenSSL is built with RSAref.
6214 [Ralf S. Engelschall]
6216 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
6217 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
6219 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
6223 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
6224 DH parameters/keys (q is lost during that conversion, but the resulting
6225 DH parameters contain its length).
6227 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
6228 much faster than DH_generate_parameters (which creates parameters
6229 where p = 2*q + 1), and also the smaller q makes DH computations
6230 much more efficient (160-bit exponentiation instead of 1024-bit
6231 exponentiation); so this provides a convenient way to support DHE
6232 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
6233 utter importance to use
6234 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6236 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6237 when such DH parameters are used, because otherwise small subgroup
6238 attacks may become possible!
6241 *) Avoid memory leak in i2d_DHparams.
6244 *) Allow the -k option to be used more than once in the enc program:
6245 this allows the same encrypted message to be read by multiple recipients.
6248 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
6249 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
6250 it will always use the numerical form of the OID, even if it has a short
6254 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
6255 method only got called if p,q,dmp1,dmq1,iqmp components were present,
6256 otherwise bn_mod_exp was called. In the case of hardware keys for example
6257 no private key components need be present and it might store extra data
6258 in the RSA structure, which cannot be accessed from bn_mod_exp.
6259 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
6260 private key operations.
6263 *) Added support for SPARC Linux.
6266 *) pem_password_cb function type incompatibly changed from
6267 typedef int pem_password_cb(char *buf, int size, int rwflag);
6269 ....(char *buf, int size, int rwflag, void *userdata);
6270 so that applications can pass data to their callbacks:
6271 The PEM[_ASN1]_{read,write}... functions and macros now take an
6272 additional void * argument, which is just handed through whenever
6273 the password callback is called.
6274 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
6276 New function SSL_CTX_set_default_passwd_cb_userdata.
6278 Compatibility note: As many C implementations push function arguments
6279 onto the stack in reverse order, the new library version is likely to
6280 interoperate with programs that have been compiled with the old
6281 pem_password_cb definition (PEM_whatever takes some data that
6282 happens to be on the stack as its last argument, and the callback
6283 just ignores this garbage); but there is no guarantee whatsoever that
6286 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
6287 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
6288 problems not only on Windows, but also on some Unix platforms.
6289 To avoid problematic command lines, these definitions are now in an
6290 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
6291 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
6294 *) MIPS III/IV assembler module is reimplemented.
6297 *) More DES library cleanups: remove references to srand/rand and
6298 delete an unused file.
6301 *) Add support for the the free Netwide assembler (NASM) under Win32,
6302 since not many people have MASM (ml) and it can be hard to obtain.
6303 This is currently experimental but it seems to work OK and pass all
6304 the tests. Check out INSTALL.W32 for info.
6307 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
6308 without temporary keys kept an extra copy of the server key,
6309 and connections with temporary keys did not free everything in case
6313 *) New function RSA_check_key and new openssl rsa option -check
6314 for verifying the consistency of RSA keys.
6315 [Ulf Moeller, Bodo Moeller]
6317 *) Various changes to make Win32 compile work:
6318 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
6319 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
6320 comparison" warnings.
6321 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
6324 *) Add a debugging option to PKCS#5 v2 key generation function: when
6325 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
6326 derived keys are printed to stderr.
6329 *) Copy the flags in ASN1_STRING_dup().
6330 [Roman E. Pavlov <pre@mo.msk.ru>]
6332 *) The x509 application mishandled signing requests containing DSA
6333 keys when the signing key was also DSA and the parameters didn't match.
6335 It was supposed to omit the parameters when they matched the signing key:
6336 the verifying software was then supposed to automatically use the CA's
6337 parameters if they were absent from the end user certificate.
6339 Omitting parameters is no longer recommended. The test was also
6340 the wrong way round! This was probably due to unusual behaviour in
6341 EVP_cmp_parameters() which returns 1 if the parameters match.
6342 This meant that parameters were omitted when they *didn't* match and
6343 the certificate was useless. Certificates signed with 'ca' didn't have
6345 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
6347 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
6348 The interface is as follows:
6349 Applications can use
6350 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
6351 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
6352 "off" is now the default.
6353 The library internally uses
6354 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
6355 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
6356 to disable memory-checking temporarily.
6358 Some inconsistent states that previously were possible (and were
6359 even the default) are now avoided.
6361 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
6362 with each memory chunk allocated; this is occasionally more helpful
6363 than just having a counter.
6365 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
6367 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
6371 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
6372 which largely parallels "options", but is for changing API behaviour,
6373 whereas "options" are about protocol behaviour.
6374 Initial "mode" flags are:
6376 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
6377 a single record has been written.
6378 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
6379 retries use the same buffer location.
6380 (But all of the contents must be
6384 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
6387 *) Fix problems with no-hmac etc.
6388 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
6390 *) New functions RSA_get_default_method(), RSA_set_method() and
6391 RSA_get_method(). These allows replacement of RSA_METHODs without having
6392 to mess around with the internals of an RSA structure.
6395 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
6396 Also really enable memory leak checks in openssl.c and in some
6398 [Chad C. Mulligan, Bodo Moeller]
6400 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
6401 up the length of negative integers. This has now been simplified to just
6402 store the length when it is first determined and use it later, rather
6403 than trying to keep track of where data is copied and updating it to
6405 [Steve Henson, reported by Brien Wheeler
6406 <bwheeler@authentica-security.com>]
6408 *) Add a new function PKCS7_signatureVerify. This allows the verification
6409 of a PKCS#7 signature but with the signing certificate passed to the
6410 function itself. This contrasts with PKCS7_dataVerify which assumes the
6411 certificate is present in the PKCS#7 structure. This isn't always the
6412 case: certificates can be omitted from a PKCS#7 structure and be
6413 distributed by "out of band" means (such as a certificate database).
6416 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
6417 function prototypes in pem.h, also change util/mkdef.pl to add the
6418 necessary function names.
6421 *) mk1mf.pl (used by Windows builds) did not properly read the
6422 options set by Configure in the top level Makefile, and Configure
6423 was not even able to write more than one option correctly.
6424 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
6427 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
6428 file to be loaded from a BIO or FILE pointer. The BIO version will
6429 for example allow memory BIOs to contain config info.
6432 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
6433 Whoever hopes to achieve shared-library compatibility across versions
6434 must use this, not the compile-time macro.
6435 (Exercise 0.9.4: Which is the minimum library version required by
6437 Note: All this applies only to multi-threaded programs, others don't
6441 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
6442 through a BIO pair triggered the default case, i.e.
6443 SSLerr(...,SSL_R_UNKNOWN_STATE).
6446 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
6447 can use the SSL library even if none of the specific BIOs is
6451 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
6452 for the encoded length.
6453 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
6455 *) Add initial documentation of the X509V3 functions.
6458 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
6459 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
6460 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
6461 secure PKCS#8 private key format with a high iteration count.
6464 *) Fix determination of Perl interpreter: A perl or perl5
6465 _directory_ in $PATH was also accepted as the interpreter.
6466 [Ralf S. Engelschall]
6468 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
6469 wrong with it but it was very old and did things like calling
6470 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
6474 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
6475 to use the new extension code.
6478 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
6479 with macros. This should make it easier to change their form, add extra
6480 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
6484 *) Add to configuration table a new entry that can specify an alternative
6485 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
6486 according to Mark Crispin <MRC@Panda.COM>.
6490 *) DES CBC did not update the IV. Weird.
6493 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
6494 Changing the behaviour of the former might break existing programs --
6495 where IV updating is needed, des_ncbc_encrypt can be used.
6498 *) When bntest is run from "make test" it drives bc to check its
6499 calculations, as well as internally checking them. If an internal check
6500 fails, it needs to cause bc to give a non-zero result or make test carries
6501 on without noticing the failure. Fixed.
6504 *) DES library cleanups.
6507 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
6508 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
6509 ciphers. NOTE: although the key derivation function has been verified
6510 against some published test vectors it has not been extensively tested
6511 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
6515 *) Instead of "mkdir -p", which is not fully portable, use new
6516 Perl script "util/mkdir-p.pl".
6519 *) Rewrite the way password based encryption (PBE) is handled. It used to
6520 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
6521 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
6522 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
6523 the 'parameter' field of the AlgorithmIdentifier is passed to the
6524 underlying key generation function so it must do its own ASN1 parsing.
6525 This has also changed the EVP_PBE_CipherInit() function which now has a
6526 'parameter' argument instead of literal salt and iteration count values
6527 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
6530 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
6531 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
6532 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
6533 KEY" because this clashed with PKCS#8 unencrypted string. Since this
6534 value was just used as a "magic string" and not used directly its
6535 value doesn't matter.
6538 *) Introduce some semblance of const correctness to BN. Shame C doesn't
6542 *) "linux-sparc64" configuration (ultrapenguin).
6543 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
6544 "linux-sparc" configuration.
6545 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
6547 *) config now generates no-xxx options for missing ciphers.
6550 *) Support the EBCDIC character set (work in progress).
6551 File ebcdic.c not yet included because it has a different license.
6552 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6554 *) Support BS2000/OSD-POSIX.
6555 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6557 *) Make callbacks for key generation use void * instead of char *.
6560 *) Make S/MIME samples compile (not yet tested).
6563 *) Additional typesafe stacks.
6566 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
6570 Changes between 0.9.3 and 0.9.3a [29 May 1999]
6572 *) New configuration variant "sco5-gcc".
6574 *) Updated some demos.
6575 [Sean O Riordain, Wade Scholine]
6577 *) Add missing BIO_free at exit of pkcs12 application.
6580 *) Fix memory leak in conf.c.
6583 *) Updates for Win32 to assembler version of MD5.
6586 *) Set #! path to perl in apps/der_chop to where we found it
6587 instead of using a fixed path.
6590 *) SHA library changes for irix64-mips4-cc.
6593 *) Improvements for VMS support.
6597 Changes between 0.9.2b and 0.9.3 [24 May 1999]
6599 *) Bignum library bug fix. IRIX 6 passes "make test" now!
6600 This also avoids the problems with SC4.2 and unpatched SC5.
6601 [Andy Polyakov <appro@fy.chalmers.se>]
6603 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
6604 These are required because of the typesafe stack would otherwise break
6605 existing code. If old code used a structure member which used to be STACK
6606 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
6607 sk_num or sk_value it would produce an error because the num, data members
6608 are not present in STACK_OF. Now it just produces a warning. sk_set
6609 replaces the old method of assigning a value to sk_value
6610 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
6611 that does this will no longer work (and should use sk_set instead) but
6612 this could be regarded as a "questionable" behaviour anyway.
6615 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
6616 correctly handle encrypted S/MIME data.
6619 *) Change type of various DES function arguments from des_cblock
6620 (which means, in function argument declarations, pointer to char)
6621 to des_cblock * (meaning pointer to array with 8 char elements),
6622 which allows the compiler to do more typechecking; it was like
6623 that back in SSLeay, but with lots of ugly casts.
6625 Introduce new type const_des_cblock.
6628 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
6629 problems: find RecipientInfo structure that matches recipient certificate
6630 and initialise the ASN1 structures properly based on passed cipher.
6633 *) Belatedly make the BN tests actually check the results.
6636 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
6637 to and from BNs: it was completely broken. New compilation option
6638 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
6639 key elements as negative integers.
6642 *) Reorganize and speed up MD5.
6643 [Andy Polyakov <appro@fy.chalmers.se>]
6646 [Richard Levitte <richard@levitte.org>]
6648 *) New option -out to asn1parse to allow the parsed structure to be
6649 output to a file. This is most useful when combined with the -strparse
6650 option to examine the output of things like OCTET STRINGS.
6653 *) Make SSL library a little more fool-proof by not requiring any longer
6654 that SSL_set_{accept,connect}_state be called before
6655 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
6656 in many applications because usually everything *appeared* to work as
6657 intended anyway -- now it really works as intended).
6660 *) Move openssl.cnf out of lib/.
6663 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
6664 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
6665 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
6666 [Ralf S. Engelschall]
6668 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
6669 handle PKCS#7 enveloped data properly.
6670 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
6672 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
6673 copying pointers. The cert_st handling is changed by this in
6674 various ways (and thus what used to be known as ctx->default_cert
6675 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
6676 any longer when s->cert does not give us what we need).
6677 ssl_cert_instantiate becomes obsolete by this change.
6678 As soon as we've got the new code right (possibly it already is?),
6679 we have solved a couple of bugs of the earlier code where s->cert
6680 was used as if it could not have been shared with other SSL structures.
6682 Note that using the SSL API in certain dirty ways now will result
6683 in different behaviour than observed with earlier library versions:
6684 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
6685 does not influence s as it used to.
6687 In order to clean up things more thoroughly, inside SSL_SESSION
6688 we don't use CERT any longer, but a new structure SESS_CERT
6689 that holds per-session data (if available); currently, this is
6690 the peer's certificate chain and, for clients, the server's certificate
6691 and temporary key. CERT holds only those values that can have
6692 meaningful defaults in an SSL_CTX.
6695 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
6696 from the internal representation. Various PKCS#7 fixes: remove some
6697 evil casts and set the enc_dig_alg field properly based on the signing
6701 *) Allow PKCS#12 password to be set from the command line or the
6702 environment. Let 'ca' get its config file name from the environment
6703 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
6707 *) Allow certificate policies extension to use an IA5STRING for the
6708 organization field. This is contrary to the PKIX definition but
6709 VeriSign uses it and IE5 only recognises this form. Document 'x509'
6713 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
6714 without disallowing inline assembler and the like for non-pedantic builds.
6717 *) Support Borland C++ builder.
6718 [Janez Jere <jj@void.si>, modified by Ulf Möller]
6723 *) SHA-1 cleanups and performance enhancements.
6724 [Andy Polyakov <appro@fy.chalmers.se>]
6726 *) Sparc v8plus assembler for the bignum library.
6727 [Andy Polyakov <appro@fy.chalmers.se>]
6729 *) Accept any -xxx and +xxx compiler options in Configure.
6732 *) Update HPUX configuration.
6735 *) Add missing sk_<type>_unshift() function to safestack.h
6736 [Ralf S. Engelschall]
6738 *) New function SSL_CTX_use_certificate_chain_file that sets the
6739 "extra_cert"s in addition to the certificate. (This makes sense
6740 only for "PEM" format files, as chains as a whole are not
6744 *) Support verify_depth from the SSL API.
6745 x509_vfy.c had what can be considered an off-by-one-error:
6746 Its depth (which was not part of the external interface)
6747 was actually counting the number of certificates in a chain;
6748 now it really counts the depth.
6751 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
6752 instead of X509err, which often resulted in confusing error
6753 messages since the error codes are not globally unique
6754 (e.g. an alleged error in ssl3_accept when a certificate
6755 didn't match the private key).
6757 *) New function SSL_CTX_set_session_id_context that allows to set a default
6758 value (so that you don't need SSL_set_session_id_context for each
6759 connection using the SSL_CTX).
6762 *) OAEP decoding bug fix.
6765 *) Support INSTALL_PREFIX for package builders, as proposed by
6769 *) New Configure options "threads" and "no-threads". For systems
6770 where the proper compiler options are known (currently Solaris
6771 and Linux), "threads" is the default.
6774 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
6777 *) Install various scripts to $(OPENSSLDIR)/misc, not to
6778 $(INSTALLTOP)/bin -- they shouldn't clutter directories
6779 such as /usr/local/bin.
6782 *) "make linux-shared" to build shared libraries.
6783 [Niels Poppe <niels@netbox.org>]
6785 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
6788 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
6789 extension adding in x509 utility.
6792 *) Remove NOPROTO sections and error code comments.
6795 *) Partial rewrite of the DEF file generator to now parse the ANSI
6799 *) New Configure options --prefix=DIR and --openssldir=DIR.
6802 *) Complete rewrite of the error code script(s). It is all now handled
6803 by one script at the top level which handles error code gathering,
6804 header rewriting and C source file generation. It should be much better
6805 than the old method: it now uses a modified version of Ulf's parser to
6806 read the ANSI prototypes in all header files (thus the old K&R definitions
6807 aren't needed for error creation any more) and do a better job of
6808 translating function codes into names. The old 'ASN1 error code imbedded
6809 in a comment' is no longer necessary and it doesn't use .err files which
6810 have now been deleted. Also the error code call doesn't have to appear all
6811 on one line (which resulted in some large lines...).
6814 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
6817 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
6818 0 (which usually indicates a closed connection), but continue reading.
6821 *) Fix some race conditions.
6824 *) Add support for CRL distribution points extension. Add Certificate
6825 Policies and CRL distribution points documentation.
6828 *) Move the autogenerated header file parts to crypto/opensslconf.h.
6831 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
6832 8 of keying material. Merlin has also confirmed interop with this fix
6833 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
6834 [Merlin Hughes <merlin@baltimore.ie>]
6836 *) Fix lots of warnings.
6837 [Richard Levitte <levitte@stacken.kth.se>]
6839 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
6840 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
6841 [Richard Levitte <levitte@stacken.kth.se>]
6843 *) Fix problems with sizeof(long) == 8.
6844 [Andy Polyakov <appro@fy.chalmers.se>]
6846 *) Change functions to ANSI C.
6849 *) Fix typos in error codes.
6850 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
6852 *) Remove defunct assembler files from Configure.
6855 *) SPARC v8 assembler BIGNUM implementation.
6856 [Andy Polyakov <appro@fy.chalmers.se>]
6858 *) Support for Certificate Policies extension: both print and set.
6859 Various additions to support the r2i method this uses.
6862 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
6863 return a const string when you are expecting an allocated buffer.
6866 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
6867 types DirectoryString and DisplayText.
6870 *) Add code to allow r2i extensions to access the configuration database,
6871 add an LHASH database driver and add several ctx helper functions.
6874 *) Fix an evil bug in bn_expand2() which caused various BN functions to
6875 fail when they extended the size of a BIGNUM.
6878 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
6879 support typesafe stack.
6882 *) Fix typo in SSL_[gs]et_options().
6883 [Nils Frostberg <nils@medcom.se>]
6885 *) Delete various functions and files that belonged to the (now obsolete)
6886 old X509V3 handling code.
6889 *) New Configure option "rsaref".
6892 *) Don't auto-generate pem.h.
6895 *) Introduce type-safe ASN.1 SETs.
6898 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
6899 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
6901 *) Introduce type-safe STACKs. This will almost certainly break lots of code
6902 that links with OpenSSL (well at least cause lots of warnings), but fear
6903 not: the conversion is trivial, and it eliminates loads of evil casts. A
6904 few STACKed things have been converted already. Feel free to convert more.
6905 In the fullness of time, I'll do away with the STACK type altogether.
6908 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
6909 specified in <certfile> by updating the entry in the index.txt file.
6910 This way one no longer has to edit the index.txt file manually for
6911 revoking a certificate. The -revoke option does the gory details now.
6912 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
6914 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
6915 `-text' option at all and this way the `-noout -text' combination was
6916 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
6917 [Ralf S. Engelschall]
6919 *) Make sure a corresponding plain text error message exists for the
6920 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
6921 verify callback function determined that a certificate was revoked.
6922 [Ralf S. Engelschall]
6924 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
6925 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
6926 all available cipers including rc5, which was forgotten until now.
6927 In order to let the testing shell script know which algorithms
6928 are available, a new (up to now undocumented) command
6929 "openssl list-cipher-commands" is used.
6932 *) Bugfix: s_client occasionally would sleep in select() when
6933 it should have checked SSL_pending() first.
6936 *) New functions DSA_do_sign and DSA_do_verify to provide access to
6937 the raw DSA values prior to ASN.1 encoding.
6940 *) Tweaks to Configure
6941 [Niels Poppe <niels@netbox.org>]
6943 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
6947 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
6950 *) New config option to avoid instructions that are illegal on the 80386.
6951 The default code is faster, but requires at least a 486.
6954 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
6955 SSL2_SERVER_VERSION (not used at all) macros, which are now the
6956 same as SSL2_VERSION anyway.
6959 *) New "-showcerts" option for s_client.
6962 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
6963 application. Various cleanups and fixes.
6966 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
6967 modify error routines to work internally. Add error codes and PBE init
6968 to library startup routines.
6971 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
6972 packing functions to asn1 and evp. Changed function names and error
6973 codes along the way.
6976 *) PKCS12 integration: and so it begins... First of several patches to
6977 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
6978 objects to objects.h
6981 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
6982 and display support for Thawte strong extranet extension.
6985 *) Add LinuxPPC support.
6986 [Jeff Dubrule <igor@pobox.org>]
6988 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
6989 bn_div_words in alpha.s.
6990 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
6992 *) Make sure the RSA OAEP test is skipped under -DRSAref because
6993 OAEP isn't supported when OpenSSL is built with RSAref.
6994 [Ulf Moeller <ulf@fitug.de>]
6996 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
6997 so they no longer are missing under -DNOPROTO.
6998 [Soren S. Jorvang <soren@t.dk>]
7001 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
7003 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
7004 doesn't work when the session is reused. Coming soon!
7007 *) Fix a security hole, that allows sessions to be reused in the wrong
7008 context thus bypassing client cert protection! All software that uses
7009 client certs and session caches in multiple contexts NEEDS PATCHING to
7010 allow session reuse! A fuller solution is in the works.
7011 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
7013 *) Some more source tree cleanups (removed obsolete files
7014 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
7015 permission on "config" script to be executable) and a fix for the INSTALL
7017 [Ulf Moeller <ulf@fitug.de>]
7019 *) Remove some legacy and erroneous uses of malloc, free instead of
7021 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
7023 *) Make rsa_oaep_test return non-zero on error.
7024 [Ulf Moeller <ulf@fitug.de>]
7026 *) Add support for native Solaris shared libraries. Configure
7027 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
7028 if someone would make that last step automatic.
7029 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
7031 *) ctx_size was not built with the right compiler during "make links". Fixed.
7034 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
7035 except NULL ciphers". This means the default cipher list will no longer
7036 enable NULL ciphers. They need to be specifically enabled e.g. with
7037 the string "DEFAULT:eNULL".
7040 *) Fix to RSA private encryption routines: if p < q then it would
7041 occasionally produce an invalid result. This will only happen with
7042 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
7045 *) Be less restrictive and allow also `perl util/perlpath.pl
7046 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
7047 because this way one can also use an interpreter named `perl5' (which is
7048 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
7049 installed as `perl').
7050 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7052 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
7053 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7055 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
7056 advapi32.lib to Win32 build and change the pem test comparision
7057 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
7058 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
7059 and crypto/des/ede_cbcm_enc.c.
7062 *) DES quad checksum was broken on big-endian architectures. Fixed.
7065 *) Comment out two functions in bio.h that aren't implemented. Fix up the
7066 Win32 test batch file so it (might) work again. The Win32 test batch file
7067 is horrible: I feel ill....
7070 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
7071 in e_os.h. Audit of header files to check ANSI and non ANSI
7072 sections: 10 functions were absent from non ANSI section and not exported
7073 from Windows DLLs. Fixed up libeay.num for new functions.
7076 *) Make `openssl version' output lines consistent.
7077 [Ralf S. Engelschall]
7079 *) Fix Win32 symbol export lists for BIO functions: Added
7080 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
7081 to ms/libeay{16,32}.def.
7082 [Ralf S. Engelschall]
7084 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
7085 fine under Unix and passes some trivial tests I've now added. But the
7086 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
7087 added to make sure no one expects that this stuff really works in the
7088 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
7089 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
7091 [Ralf S. Engelschall]
7093 *) Fix the generation of two part addresses in perl.
7094 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
7096 *) Add config entry for Linux on MIPS.
7097 [John Tobey <jtobey@channel1.com>]
7099 *) Make links whenever Configure is run, unless we are on Windoze.
7102 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
7103 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
7107 *) Add a useful kludge to allow package maintainers to specify compiler and
7108 other platforms details on the command line without having to patch the
7109 Configure script everytime: One now can use ``perl Configure
7110 <id>:<details>'', i.e. platform ids are allowed to have details appended
7111 to them (seperated by colons). This is treated as there would be a static
7112 pre-configured entry in Configure's %table under key <id> with value
7113 <details> and ``perl Configure <id>'' is called. So, when you want to
7114 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
7115 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
7116 now, which overrides the FreeBSD-elf entry on-the-fly.
7117 [Ralf S. Engelschall]
7119 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
7122 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
7123 on the `perl Configure ...' command line. This way one can compile
7124 OpenSSL libraries with Position Independent Code (PIC) which is needed
7125 for linking it into DSOs.
7126 [Ralf S. Engelschall]
7128 *) Remarkably, export ciphers were totally broken and no-one had noticed!
7132 *) Cleaned up the LICENSE document: The official contact for any license
7133 questions now is the OpenSSL core team under openssl-core@openssl.org.
7134 And add a paragraph about the dual-license situation to make sure people
7135 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
7136 to the OpenSSL toolkit.
7137 [Ralf S. Engelschall]
7139 *) General source tree makefile cleanups: Made `making xxx in yyy...'
7140 display consistent in the source tree and replaced `/bin/rm' by `rm'.
7141 Additonally cleaned up the `make links' target: Remove unnecessary
7142 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
7143 to speed processing and no longer clutter the display with confusing
7144 stuff. Instead only the actually done links are displayed.
7145 [Ralf S. Engelschall]
7147 *) Permit null encryption ciphersuites, used for authentication only. It used
7148 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
7149 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
7153 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
7154 signed attributes when verifying signatures (this would break them),
7155 the detached data encoding was wrong and public keys obtained using
7156 X509_get_pubkey() weren't freed.
7159 *) Add text documentation for the BUFFER functions. Also added a work around
7160 to a Win95 console bug. This was triggered by the password read stuff: the
7161 last character typed gets carried over to the next fread(). If you were
7162 generating a new cert request using 'req' for example then the last
7163 character of the passphrase would be CR which would then enter the first
7167 *) Added the new `Includes OpenSSL Cryptography Software' button as
7168 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
7169 button and can be used by applications based on OpenSSL to show the
7170 relationship to the OpenSSL project.
7171 [Ralf S. Engelschall]
7173 *) Remove confusing variables in function signatures in files
7174 ssl/ssl_lib.c and ssl/ssl.h.
7175 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7177 *) Don't install bss_file.c under PREFIX/include/
7178 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7180 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
7181 functions that return function pointers and has support for NT specific
7182 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
7183 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
7184 unsigned to signed types: this was killing the Win32 compile.
7187 *) Add new certificate file to stack functions,
7188 SSL_add_dir_cert_subjects_to_stack() and
7189 SSL_add_file_cert_subjects_to_stack(). These largely supplant
7190 SSL_load_client_CA_file(), and can be used to add multiple certs easily
7191 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
7192 This means that Apache-SSL and similar packages don't have to mess around
7193 to add as many CAs as they want to the preferred list.
7196 *) Experiment with doxygen documentation. Currently only partially applied to
7198 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
7199 openssl.doxy as the configuration file.
7202 *) Get rid of remaining C++-style comments which strict C compilers hate.
7203 [Ralf S. Engelschall, pointed out by Carlos Amengual]
7205 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
7206 compiled in by default: it has problems with large keys.
7209 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
7210 DH private keys and/or callback functions which directly correspond to
7211 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
7212 is needed for applications which have to configure certificates on a
7213 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
7215 For the RSA certificate situation is makes no difference, but
7216 for the DSA certificate situation this fixes the "no shared cipher"
7217 problem where the OpenSSL cipher selection procedure failed because the
7218 temporary keys were not overtaken from the context and the API provided
7219 no way to reconfigure them.
7220 The new functions now let applications reconfigure the stuff and they
7221 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
7222 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
7223 non-public-API function ssl_cert_instantiate() is used as a helper
7224 function and also to reduce code redundancy inside ssl_rsa.c.
7225 [Ralf S. Engelschall]
7227 *) Move s_server -dcert and -dkey options out of the undocumented feature
7228 area because they are useful for the DSA situation and should be
7229 recognized by the users.
7230 [Ralf S. Engelschall]
7232 *) Fix the cipher decision scheme for export ciphers: the export bits are
7233 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
7234 SSL_EXP_MASK. So, the original variable has to be used instead of the
7235 already masked variable.
7236 [Richard Levitte <levitte@stacken.kth.se>]
7238 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
7239 [Richard Levitte <levitte@stacken.kth.se>]
7241 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
7242 from `int' to `unsigned int' because it's a length and initialized by
7243 EVP_DigestFinal() which expects an `unsigned int *'.
7244 [Richard Levitte <levitte@stacken.kth.se>]
7246 *) Don't hard-code path to Perl interpreter on shebang line of Configure
7247 script. Instead use the usual Shell->Perl transition trick.
7248 [Ralf S. Engelschall]
7250 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
7251 (in addition to RSA certificates) to match the behaviour of `openssl dsa
7252 -noout -modulus' as it's already the case for `openssl rsa -noout
7253 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
7254 currently the public key is printed (a decision which was already done by
7255 `openssl dsa -modulus' in the past) which serves a similar purpose.
7256 Additionally the NO_RSA no longer completely removes the whole -modulus
7257 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
7259 [Ralf S. Engelschall]
7261 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
7262 BIO. See the source (crypto/evp/bio_ok.c) for more info.
7263 [Arne Ansper <arne@ats.cyber.ee>]
7265 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
7266 to be added. Now both 'req' and 'ca' can use new objects defined in the
7270 *) Add cool BIO that does syslog (or event log on NT).
7271 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
7273 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
7274 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
7275 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
7276 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
7279 *) Add preliminary config info for new extension code.
7282 *) Make RSA_NO_PADDING really use no padding.
7283 [Ulf Moeller <ulf@fitug.de>]
7285 *) Generate errors when private/public key check is done.
7288 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
7289 for some CRL extensions and new objects added.
7292 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
7293 key usage extension and fuller support for authority key id.
7296 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
7297 padding method for RSA, which is recommended for new applications in PKCS
7298 #1 v2.0 (RFC 2437, October 1998).
7299 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
7300 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
7301 against Bleichbacher's attack on RSA.
7302 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
7305 *) Updates to the new SSL compression code
7306 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7308 *) Fix so that the version number in the master secret, when passed
7309 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
7310 (because the server will not accept higher), that the version number
7311 is 0x03,0x01, not 0x03,0x00
7312 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7314 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
7315 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
7316 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
7319 *) Support for RAW extensions where an arbitrary extension can be
7320 created by including its DER encoding. See apps/openssl.cnf for
7324 *) Make sure latest Perl versions don't interpret some generated C array
7325 code as Perl array code in the crypto/err/err_genc.pl script.
7326 [Lars Weber <3weber@informatik.uni-hamburg.de>]
7328 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
7329 not many people have the assembler. Various Win32 compilation fixes and
7330 update to the INSTALL.W32 file with (hopefully) more accurate Win32
7334 *) Modify configure script 'Configure' to automatically create crypto/date.h
7335 file under Win32 and also build pem.h from pem.org. New script
7336 util/mkfiles.pl to create the MINFO file on environments that can't do a
7337 'make files': perl util/mkfiles.pl >MINFO should work.
7340 *) Major rework of DES function declarations, in the pursuit of correctness
7341 and purity. As a result, many evil casts evaporated, and some weirdness,
7342 too. You may find this causes warnings in your code. Zapping your evil
7343 casts will probably fix them. Mostly.
7346 *) Fix for a typo in asn1.h. Bug fix to object creation script
7347 obj_dat.pl. It considered a zero in an object definition to mean
7348 "end of object": none of the objects in objects.h have any zeros
7349 so it wasn't spotted.
7350 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
7352 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
7353 Masking (CBCM). In the absence of test vectors, the best I have been able
7354 to do is check that the decrypt undoes the encrypt, so far. Send me test
7355 vectors if you have them.
7358 *) Correct calculation of key length for export ciphers (too much space was
7359 allocated for null ciphers). This has not been tested!
7362 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
7363 message is now correct (it understands "crypto" and "ssl" on its
7364 command line). There is also now an "update" option. This will update
7365 the util/ssleay.num and util/libeay.num files with any new functions.
7367 perl util/mkdef.pl crypto ssl update
7368 it will update them.
7371 *) Overhauled the Perl interface (perl/*):
7372 - ported BN stuff to OpenSSL's different BN library
7373 - made the perl/ source tree CVS-aware
7374 - renamed the package from SSLeay to OpenSSL (the files still contain
7375 their history because I've copied them in the repository)
7376 - removed obsolete files (the test scripts will be replaced
7377 by better Test::Harness variants in the future)
7378 [Ralf S. Engelschall]
7380 *) First cut for a very conservative source tree cleanup:
7381 1. merge various obsolete readme texts into doc/ssleay.txt
7382 where we collect the old documents and readme texts.
7383 2. remove the first part of files where I'm already sure that we no
7384 longer need them because of three reasons: either they are just temporary
7385 files which were left by Eric or they are preserved original files where
7386 I've verified that the diff is also available in the CVS via "cvs diff
7387 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
7388 the crypto/md/ stuff).
7389 [Ralf S. Engelschall]
7391 *) More extension code. Incomplete support for subject and issuer alt
7392 name, issuer and authority key id. Change the i2v function parameters
7393 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
7394 what that's for :-) Fix to ASN1 macro which messed up
7395 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
7398 *) Preliminary support for ENUMERATED type. This is largely copied from the
7402 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
7403 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7405 *) Make sure `make rehash' target really finds the `openssl' program.
7406 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7408 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
7409 like to hear about it if this slows down other processors.
7412 *) Add CygWin32 platform information to Configure script.
7413 [Alan Batie <batie@aahz.jf.intel.com>]
7415 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
7416 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
7418 *) New program nseq to manipulate netscape certificate sequences
7421 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
7425 *) Fixes to BN code. Previously the default was to define BN_RECURSION
7426 but the BN code had some problems that would cause failures when
7427 doing certificate verification and some other functions.
7428 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7430 *) Add ASN1 and PEM code to support netscape certificate sequences.
7433 *) Add ASN1 and PEM code to support netscape certificate sequences.
7436 *) Add several PKIX and private extended key usage OIDs.
7439 *) Modify the 'ca' program to handle the new extension code. Modify
7440 openssl.cnf for new extension format, add comments.
7443 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
7444 and add a sample to openssl.cnf so req -x509 now adds appropriate
7448 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
7449 error code, add initial support to X509_print() and x509 application.
7452 *) Takes a deep breath and start addding X509 V3 extension support code. Add
7453 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
7454 stuff is currently isolated and isn't even compiled yet.
7457 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
7458 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
7459 Removed the versions check from X509 routines when loading extensions:
7460 this allows certain broken certificates that don't set the version
7461 properly to be processed.
7464 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
7465 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
7466 can still be regenerated with "make depend".
7469 *) Spelling mistake in C version of CAST-128.
7470 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
7472 *) Changes to the error generation code. The perl script err-code.pl
7473 now reads in the old error codes and retains the old numbers, only
7474 adding new ones if necessary. It also only changes the .err files if new
7475 codes are added. The makefiles have been modified to only insert errors
7476 when needed (to avoid needlessly modifying header files). This is done
7477 by only inserting errors if the .err file is newer than the auto generated
7478 C file. To rebuild all the error codes from scratch (the old behaviour)
7479 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
7480 or delete all the .err files.
7483 *) CAST-128 was incorrectly implemented for short keys. The C version has
7484 been fixed, but is untested. The assembler versions are also fixed, but
7485 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
7486 to regenerate it if needed.
7487 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
7488 Hagino <itojun@kame.net>]
7490 *) File was opened incorrectly in randfile.c.
7491 [Ulf Möller <ulf@fitug.de>]
7493 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
7494 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
7495 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
7496 al: it's just almost always a UTCTime. Note this patch adds new error
7497 codes so do a "make errors" if there are problems.
7500 *) Correct Linux 1 recognition in config.
7501 [Ulf Möller <ulf@fitug.de>]
7503 *) Remove pointless MD5 hash when using DSA keys in ca.
7504 [Anonymous <nobody@replay.com>]
7506 *) Generate an error if given an empty string as a cert directory. Also
7507 generate an error if handed NULL (previously returned 0 to indicate an
7508 error, but didn't set one).
7509 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
7511 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
7514 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
7515 parameters. This was causing a warning which killed off the Win32 compile.
7518 *) Remove C++ style comments from crypto/bn/bn_local.h.
7519 [Neil Costigan <neil.costigan@celocom.com>]
7521 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
7522 based on a text string, looking up short and long names and finally
7523 "dot" format. The "dot" format stuff didn't work. Added new function
7524 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
7525 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
7526 OID is not part of the table.
7529 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
7530 X509_LOOKUP_by_alias().
7533 *) Sort openssl functions by name.
7536 *) Get the gendsa program working (hopefully) and add it to app list. Remove
7537 encryption from sample DSA keys (in case anyone is interested the password
7541 *) Make _all_ *_free functions accept a NULL pointer.
7542 [Frans Heymans <fheymans@isaserver.be>]
7544 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
7546 [Anonymous <nobody@replay.com>]
7548 *) s_server should send the CAfile as acceptable CAs, not its own cert.
7549 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
7551 *) Don't blow it for numeric -newkey arguments to apps/req.
7552 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
7554 *) Temp key "for export" tests were wrong in s3_srvr.c.
7555 [Anonymous <nobody@replay.com>]
7557 *) Add prototype for temp key callback functions
7558 SSL_CTX_set_tmp_{rsa,dh}_callback().
7561 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
7562 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
7565 *) X509_name_add_entry() freed the wrong thing after an error.
7566 [Arne Ansper <arne@ats.cyber.ee>]
7568 *) rsa_eay.c would attempt to free a NULL context.
7569 [Arne Ansper <arne@ats.cyber.ee>]
7571 *) BIO_s_socket() had a broken should_retry() on Windoze.
7572 [Arne Ansper <arne@ats.cyber.ee>]
7574 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
7575 [Arne Ansper <arne@ats.cyber.ee>]
7577 *) Make sure the already existing X509_STORE->depth variable is initialized
7578 in X509_STORE_new(), but document the fact that this variable is still
7579 unused in the certificate verification process.
7580 [Ralf S. Engelschall]
7582 *) Fix the various library and apps files to free up pkeys obtained from
7583 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
7586 *) Fix reference counting in X509_PUBKEY_get(). This makes
7587 demos/maurice/example2.c work, amongst others, probably.
7588 [Steve Henson and Ben Laurie]
7590 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
7591 `openssl' and second, the shortcut symlinks for the `openssl <command>'
7592 are no longer created. This way we have a single and consistent command
7593 line interface `openssl <command>', similar to `cvs <command>'.
7594 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
7596 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
7597 BIT STRING wrapper always have zero unused bits.
7600 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
7603 *) Make the top-level INSTALL documentation easier to understand.
7606 *) Makefiles updated to exit if an error occurs in a sub-directory
7607 make (including if user presses ^C) [Paul Sutton]
7609 *) Make Montgomery context stuff explicit in RSA data structure.
7612 *) Fix build order of pem and err to allow for generated pem.h.
7615 *) Fix renumbering bug in X509_NAME_delete_entry().
7618 *) Enhanced the err-ins.pl script so it makes the error library number
7619 global and can add a library name. This is needed for external ASN1 and
7620 other error libraries.
7623 *) Fixed sk_insert which never worked properly.
7626 *) Fix ASN1 macros so they can handle indefinite length construted
7627 EXPLICIT tags. Some non standard certificates use these: they can now
7631 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
7632 into a single doc/ssleay.txt bundle. This way the information is still
7633 preserved but no longer messes up this directory. Now it's new room for
7634 the new set of documenation files.
7635 [Ralf S. Engelschall]
7637 *) SETs were incorrectly DER encoded. This was a major pain, because they
7638 shared code with SEQUENCEs, which aren't coded the same. This means that
7639 almost everything to do with SETs or SEQUENCEs has either changed name or
7640 number of arguments.
7641 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
7643 *) Fix test data to work with the above.
7646 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
7647 was already fixed by Eric for 0.9.1 it seems.
7648 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
7650 *) Autodetect FreeBSD3.
7653 *) Fix various bugs in Configure. This affects the following platforms:
7657 unixware-2.0-pentium
7661 *) Eliminate generated files from CVS. Reorder tests to regenerate files
7662 before they are needed.
7665 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
7669 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
7671 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
7672 changed SSLeay to OpenSSL in version strings.
7673 [Ralf S. Engelschall]
7675 *) Some fixups to the top-level documents.
7678 *) Fixed the nasty bug where rsaref.h was not found under compile-time
7679 because the symlink to include/ was missing.
7680 [Ralf S. Engelschall]
7682 *) Incorporated the popular no-RSA/DSA-only patches
7683 which allow to compile a RSA-free SSLeay.
7684 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
7686 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
7687 when "ssleay" is still not found.
7688 [Ralf S. Engelschall]
7690 *) Added more platforms to Configure: Cray T3E, HPUX 11,
7691 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
7693 *) Updated the README file.
7694 [Ralf S. Engelschall]
7696 *) Added various .cvsignore files in the CVS repository subdirs
7697 to make a "cvs update" really silent.
7698 [Ralf S. Engelschall]
7700 *) Recompiled the error-definition header files and added
7701 missing symbols to the Win32 linker tables.
7702 [Ralf S. Engelschall]
7704 *) Cleaned up the top-level documents;
7705 o new files: CHANGES and LICENSE
7706 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
7707 o merged COPYRIGHT into LICENSE
7708 o removed obsolete TODO file
7709 o renamed MICROSOFT to INSTALL.W32
7710 [Ralf S. Engelschall]
7712 *) Removed dummy files from the 0.9.1b source tree:
7713 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
7714 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
7715 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
7716 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
7717 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
7718 [Ralf S. Engelschall]
7720 *) Added various platform portability fixes.
7723 *) The Genesis of the OpenSSL rpject:
7724 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
7725 Young and Tim J. Hudson created while they were working for C2Net until
7727 [The OpenSSL Project]
7730 Changes between 0.9.0b and 0.9.1b [not released]
7732 *) Updated a few CA certificates under certs/
7735 *) Changed some BIGNUM api stuff.
7738 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
7739 DGUX x86, Linux Alpha, etc.
7742 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
7743 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
7747 *) Add -strparse option to asn1pars program which parses nested
7749 [Dr Stephen Henson <shenson@bigfoot.com>]
7751 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
7754 *) DSA fix for "ca" program.
7757 *) Added "-genkey" option to "dsaparam" program.
7760 *) Added RIPE MD160 (rmd160) message digest.
7763 *) Added -a (all) option to "ssleay version" command.
7766 *) Added PLATFORM define which is the id given to Configure.
7769 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
7772 *) Extended the ASN.1 parser routines.
7775 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
7778 *) Added a BN_CTX to the BN library.
7781 *) Fixed the weak key values in DES library
7784 *) Changed API in EVP library for cipher aliases.
7787 *) Added support for RC2/64bit cipher.
7790 *) Converted the lhash library to the crypto/mem.c functions.
7793 *) Added more recognized ASN.1 object ids.
7796 *) Added more RSA padding checks for SSL/TLS.
7799 *) Added BIO proxy/filter functionality.
7802 *) Added extra_certs to SSL_CTX which can be used
7803 send extra CA certificates to the client in the CA cert chain sending
7804 process. It can be configured with SSL_CTX_add_extra_chain_cert().
7807 *) Now Fortezza is denied in the authentication phase because
7808 this is key exchange mechanism is not supported by SSLeay at all.
7811 *) Additional PKCS1 checks.
7814 *) Support the string "TLSv1" for all TLS v1 ciphers.
7817 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
7818 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
7821 *) Fixed a few memory leaks.
7824 *) Fixed various code and comment typos.
7827 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
7828 bytes sent in the client random.
7829 [Edward Bishop <ebishop@spyglass.com>]
projects / oweals / openssl.git / blob