5 Changes between 0.9.8 and 0.9.9 [xx XXX xxxx]
7 *) Modify CRL distribution points extension code to print out previously
8 unsupported fields. Enhance extension setting code to allow setting of
12 *) Add print and set support for Issuing Distribution Point CRL extension.
15 Changes between 0.9.8 and 0.9.8a [XX xxx XXXX]
17 *) Initialize SSL_METHOD structures at compile time instead of during
18 runtime, thus removing the need for a lock.
21 *) Make PKCS7_decrypt() work even if no certificate is supplied by
22 attempting to decrypt each encrypted key in turn. Add support to
26 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
28 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
31 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
32 key into the same file any more.
35 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
38 *) Add -utf8 command line and config file option to 'ca'.
39 [Stefan <stf@udoma.org]
41 *) Removed the macro des_crypt(), as it seems to conflict with some
42 libraries. Use DES_crypt().
45 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
46 involves renaming the source and generated shared-libs for
47 both. The engines will accept the corrected or legacy ids
48 ('ncipher' and '4758_cca' respectively) when binding. NB,
49 this only applies when building 'shared'.
50 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
52 *) Add attribute functions to EVP_PKEY structure. Modify
53 PKCS12_create() to recognize a CSP name attribute and
54 use it. Make -CSP option work again in pkcs12 utility.
57 *) Add new functionality to the bn blinding code:
58 - automatic re-creation of the BN_BLINDING parameters after
59 a fixed number of uses (currently 32)
60 - add new function for parameter creation
61 - introduce flags to control the update behaviour of the
62 BN_BLINDING parameters
63 - hide BN_BLINDING structure
64 Add a second BN_BLINDING slot to the RSA structure to improve
65 performance when a single RSA object is shared among several
69 *) Add support for DTLS.
70 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
72 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
73 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
76 *) Remove buggy and incompletet DH cert support from
77 ssl/ssl_rsa.c and ssl/s3_both.c
80 *) Use SHA-1 instead of MD5 as the default digest algorithm for
81 the apps/openssl applications.
84 *) Compile clean with "-Wall -Wmissing-prototypes
85 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
86 DEBUG_SAFESTACK must also be set.
89 *) Change ./Configure so that certain algorithms can be disabled by default.
90 The new counterpiece to "no-xxx" is "enable-xxx".
92 The patented RC5 and MDC2 algorithms will now be disabled unless
93 "enable-rc5" and "enable-mdc2", respectively, are specified.
95 (IDEA remains enabled despite being patented. This is because IDEA
96 is frequently required for interoperability, and there is no license
97 fee for non-commercial use. As before, "no-idea" can be used to
98 avoid this algorithm.)
102 *) Add processing of proxy certificates (see RFC 3820). This work was
103 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
104 EGEE (Enabling Grids for E-science in Europe).
107 *) RC4 performance overhaul on modern architectures/implementations, such
108 as Intel P4, IA-64 and AMD64.
111 *) New utility extract-section.pl. This can be used specify an alternative
112 section number in a pod file instead of having to treat each file as
113 a separate case in Makefile. This can be done by adding two lines to the
116 =for comment openssl_section:XXX
118 The blank line is mandatory.
122 *) New arguments -certform, -keyform and -pass for s_client and s_server
123 to allow alternative format key and certificate files and passphrase
127 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
128 update associated structures and add various utility functions.
130 Add new policy related verify parameters, include policy checking in
131 standard verify code. Enhance 'smime' application with extra parameters
132 to support policy checking and print out.
135 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
136 Nehemiah processors. These extensions support AES encryption in hardware
137 as well as RNG (though RNG support is currently disabled).
138 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
140 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
143 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
144 [Andy Polyakov and a number of other people]
146 *) Improved PowerPC platform support. Most notably BIGNUM assembler
147 implementation contributed by IBM.
148 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
150 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
151 exponent rather than 'unsigned long'. There is a corresponding change to
152 the new 'rsa_keygen' element of the RSA_METHOD structure.
153 [Jelte Jansen, Geoff Thorpe]
155 *) Functionality for creating the initial serial number file is now
156 moved from CA.pl to the 'ca' utility with a new option -create_serial.
158 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
159 number file to 1, which is bound to cause problems. To avoid
160 the problems while respecting compatibility between different 0.9.7
161 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
162 CA.pl for serial number initialization. With the new release 0.9.8,
163 we can fix the problem directly in the 'ca' utility.)
166 *) Reduced header interdepencies by declaring more opaque objects in
167 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
168 give fewer recursive includes, which could break lazy source code - so
169 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
170 developers should define this symbol when building and using openssl to
171 ensure they track the recommended behaviour, interfaces, [etc], but
172 backwards-compatible behaviour prevails when this isn't defined.
175 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
178 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
179 This will generate a random key of the appropriate length based on the
180 cipher context. The EVP_CIPHER can provide its own random key generation
181 routine to support keys of a specific form. This is used in the des and
182 3des routines to generate a key of the correct parity. Update S/MIME
183 code to use new functions and hence generate correct parity DES keys.
184 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
185 valid (weak or incorrect parity).
188 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
189 as looking them up. This is useful when the verified structure may contain
190 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
191 present unless the new PKCS7_NO_CRL flag is asserted.
194 *) Extend ASN1 oid configuration module. It now additionally accepts the
197 shortName = some long name, 1.2.3.4
200 *) Reimplemented the BN_CTX implementation. There is now no more static
201 limitation on the number of variables it can handle nor the depth of the
202 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
203 information can now expand as required, and rather than having a single
204 static array of bignums, BN_CTX now uses a linked-list of such arrays
205 allowing it to expand on demand whilst maintaining the usefulness of
209 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
210 to allow all RSA operations to function using a single BN_CTX.
213 *) Preliminary support for certificate policy evaluation and checking. This
214 is initially intended to pass the tests outlined in "Conformance Testing
215 of Relying Party Client Certificate Path Processing Logic" v1.07.
218 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
219 remained unused and not that useful. A variety of other little bignum
220 tweaks and fixes have also been made continuing on from the audit (see
224 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
225 associated ASN1, EVP and SSL functions and old ASN1 macros.
228 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
229 and this should never fail. So the return value from the use of
230 BN_set_word() (which can fail due to needless expansion) is now deprecated;
231 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
234 *) BN_CTX_get() should return zero-valued bignums, providing the same
235 initialised value as BN_new().
236 [Geoff Thorpe, suggested by Ulf Möller]
238 *) Support for inhibitAnyPolicy certificate extension.
241 *) An audit of the BIGNUM code is underway, for which debugging code is
242 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
243 is considered valid when processing BIGNUMs, and causes execution to
244 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
245 further steps are taken to deliberately pollute unused data in BIGNUM
246 structures to try and expose faulty code further on. For now, openssl will
247 (in its default mode of operation) continue to tolerate the inconsistent
248 forms that it has tolerated in the past, but authors and packagers should
249 consider trying openssl and their own applications when compiled with
250 these debugging symbols defined. It will help highlight potential bugs in
251 their own code, and will improve the test coverage for OpenSSL itself. At
252 some point, these tighter rules will become openssl's default to improve
253 maintainability, though the assert()s and other overheads will remain only
254 in debugging configurations. See bn.h for more details.
255 [Geoff Thorpe, Nils Larsch, Ulf Möller]
257 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
258 that can only be obtained through BN_CTX_new() (which implicitly
259 initialises it). The presence of this function only made it possible
260 to overwrite an existing structure (and cause memory leaks).
263 *) Because of the callback-based approach for implementing LHASH as a
264 template type, lh_insert() adds opaque objects to hash-tables and
265 lh_doall() or lh_doall_arg() are typically used with a destructor callback
266 to clean up those corresponding objects before destroying the hash table
267 (and losing the object pointers). So some over-zealous constifications in
268 LHASH have been relaxed so that lh_insert() does not take (nor store) the
269 objects as "const" and the lh_doall[_arg] callback wrappers are not
270 prototyped to have "const" restrictions on the object pointers they are
271 given (and so aren't required to cast them away any more).
274 *) The tmdiff.h API was so ugly and minimal that our own timing utility
275 (speed) prefers to use its own implementation. The two implementations
276 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
277 its object type properly exposed (MS_TM) instead of casting to/from "char
278 *". This may still change yet if someone realises MS_TM and "ms_time_***"
279 aren't necessarily the greatest nomenclatures - but this is what was used
280 internally to the implementation so I've used that for now.
283 *) Ensure that deprecated functions do not get compiled when
284 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
285 the self-tests were still using deprecated key-generation functions so
286 these have been updated also.
289 *) Reorganise PKCS#7 code to separate the digest location functionality
290 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
291 New function PKCS7_set_digest() to set the digest type for PKCS#7
292 digestedData type. Add additional code to correctly generate the
293 digestedData type and add support for this type in PKCS7 initialization
297 *) New function PKCS7_set0_type_other() this initializes a PKCS7
298 structure of type "other".
301 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
302 sure the loop does correctly stop and breaking ("division by zero")
303 modulus operations are not performed. The (pre-generated) prime
304 table crypto/bn/bn_prime.h was already correct, but it could not be
305 re-generated on some platforms because of the "division by zero"
306 situation in the script.
307 [Ralf S. Engelschall]
309 *) Update support for ECC-based TLS ciphersuites according to
310 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
311 SHA-1 now is only used for "small" curves (where the
312 representation of a field element takes up to 24 bytes); for
313 larger curves, the field element resulting from ECDH is directly
314 used as premaster secret.
315 [Douglas Stebila (Sun Microsystems Laboratories)]
317 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
318 curve secp160r1 to the tests.
319 [Douglas Stebila (Sun Microsystems Laboratories)]
321 *) Add the possibility to load symbols globally with DSO.
322 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
324 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
325 control of the error stack.
328 *) Add support for STORE in ENGINE.
331 *) Add the STORE type. The intention is to provide a common interface
332 to certificate and key stores, be they simple file-based stores, or
333 HSM-type store, or LDAP stores, or...
334 NOTE: The code is currently UNTESTED and isn't really used anywhere.
337 *) Add a generic structure called OPENSSL_ITEM. This can be used to
338 pass a list of arguments to any function as well as provide a way
339 for a function to pass data back to the caller.
342 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
343 works like BUF_strdup() but can be used to duplicate a portion of
344 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
348 *) Add the function sk_find_ex() which works like sk_find(), but will
349 return an index to an element even if an exact match couldn't be
350 found. The index is guaranteed to point at the element where the
351 searched-for key would be inserted to preserve sorting order.
354 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
355 takes an extra flags argument for optional functionality. Currently,
356 the following flags are defined:
358 OBJ_BSEARCH_VALUE_ON_NOMATCH
359 This one gets OBJ_bsearch_ex() to return a pointer to the first
360 element where the comparing function returns a negative or zero
363 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
364 This one gets OBJ_bsearch_ex() to return a pointer to the first
365 element where the comparing function returns zero. This is useful
366 if there are more than one element where the comparing function
370 *) Make it possible to create self-signed certificates with 'openssl ca'
371 in such a way that the self-signed certificate becomes part of the
372 CA database and uses the same mechanisms for serial number generation
373 as all other certificate signing. The new flag '-selfsign' enables
374 this functionality. Adapt CA.sh and CA.pl.in.
377 *) Add functionality to check the public key of a certificate request
378 against a given private. This is useful to check that a certificate
379 request can be signed by that key (self-signing).
382 *) Make it possible to have multiple active certificates with the same
383 subject in the CA index file. This is done only if the keyword
384 'unique_subject' is set to 'no' in the main CA section (default
385 if 'CA_default') of the configuration file. The value is saved
386 with the database itself in a separate index attribute file,
387 named like the index file with '.attr' appended to the name.
390 *) Generate muti valued AVAs using '+' notation in config files for
394 *) Support for nameConstraints certificate extension.
397 *) Support for policyConstraints certificate extension.
400 *) Support for policyMappings certificate extension.
403 *) Make sure the default DSA_METHOD implementation only uses its
404 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
405 and change its own handlers to be NULL so as to remove unnecessary
406 indirection. This lets alternative implementations fallback to the
407 default implementation more easily.
410 *) Support for directoryName in GeneralName related extensions
414 *) Make it possible to link applications using Makefile.shared.
415 Make that possible even when linking against static libraries!
418 *) Support for single pass processing for S/MIME signing. This now
419 means that S/MIME signing can be done from a pipe, in addition
420 cleartext signing (multipart/signed type) is effectively streaming
421 and the signed data does not need to be all held in memory.
423 This is done with a new flag PKCS7_STREAM. When this flag is set
424 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
425 is done after the data is output (and digests calculated) in
429 *) Add full support for -rpath/-R, both in shared libraries and
430 applications, at least on the platforms where it's known how
434 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
435 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
436 will now compute a table of multiples of the generator that
437 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
438 faster (notably in the case of a single point multiplication,
440 [Nils Larsch, Bodo Moeller]
442 *) IPv6 support for certificate extensions. The various extensions
443 which use the IP:a.b.c.d can now take IPv6 addresses using the
444 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
448 *) Added an ENGINE that implements RSA by performing private key
449 exponentiations with the GMP library. The conversions to and from
450 GMP's mpz_t format aren't optimised nor are any montgomery forms
451 cached, and on x86 it appears OpenSSL's own performance has caught up.
452 However there are likely to be other architectures where GMP could
453 provide a boost. This ENGINE is not built in by default, but it can be
454 specified at Configure time and should be accompanied by the necessary
455 linker additions, eg;
456 ./config -DOPENSSL_USE_GMP -lgmp
459 *) "openssl engine" will not display ENGINE/DSO load failure errors when
460 testing availability of engines with "-t" - the old behaviour is
461 produced by increasing the feature's verbosity with "-tt".
464 *) ECDSA routines: under certain error conditions uninitialized BN objects
465 could be freed. Solution: make sure initialization is performed early
466 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
470 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
471 and DH_METHOD (eg. by ENGINE implementations) to override the normal
472 software implementations. For DSA and DH, parameter generation can
473 also be overriden by providing the appropriate method callbacks.
476 *) Change the "progress" mechanism used in key-generation and
477 primality testing to functions that take a new BN_GENCB pointer in
478 place of callback/argument pairs. The new API functions have "_ex"
479 postfixes and the older functions are reimplemented as wrappers for
480 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
481 declarations of the old functions to help (graceful) attempts to
482 migrate to the new functions. Also, the new key-generation API
483 functions operate on a caller-supplied key-structure and return
484 success/failure rather than returning a key or NULL - this is to
485 help make "keygen" another member function of RSA_METHOD etc.
487 Example for using the new callback interface:
489 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
493 BN_GENCB_set(&my_cb, my_callback, my_arg);
495 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
496 /* For the meaning of a, b in calls to my_callback(), see the
497 * documentation of the function that calls the callback.
498 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
499 * my_callback should return 1 if it wants BN_is_prime_ex()
500 * to continue, or 0 to stop.
505 *) Change the ZLIB compression method to be stateful, and make it
506 available to TLS with the number defined in
507 draft-ietf-tls-compression-04.txt.
510 *) Add the ASN.1 structures and functions for CertificatePair, which
511 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
513 CertificatePair ::= SEQUENCE {
514 forward [0] Certificate OPTIONAL,
515 reverse [1] Certificate OPTIONAL,
516 -- at least one of the pair shall be present -- }
518 Also implement the PEM functions to read and write certificate
519 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
521 This needed to be defined, mostly for the sake of the LDAP
522 attribute crossCertificatePair, but may prove useful elsewhere as
526 *) Make it possible to inhibit symlinking of shared libraries in
527 Makefile.shared, for Cygwin's sake.
530 *) Extend the BIGNUM API by creating a function
531 void BN_set_negative(BIGNUM *a, int neg);
532 and a macro that behave like
533 int BN_is_negative(const BIGNUM *a);
535 to avoid the need to access 'a->neg' directly in applications.
538 *) Implement fast modular reduction for pseudo-Mersenne primes
539 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
540 EC_GROUP_new_curve_GFp() will now automatically use this
542 [Nils Larsch <nla@trustcenter.de>]
544 *) Add new lock type (CRYPTO_LOCK_BN).
547 *) Change the ENGINE framework to automatically load engines
548 dynamically from specific directories unless they could be
549 found to already be built in or loaded. Move all the
550 current engines except for the cryptodev one to a new
552 The engines in engines/ are built as shared libraries if
553 the "shared" options was given to ./Configure or ./config.
554 Otherwise, they are inserted in libcrypto.a.
555 /usr/local/ssl/engines is the default directory for dynamic
556 engines, but that can be overriden at configure time through
557 the usual use of --prefix and/or --openssldir, and at run
558 time with the environment variable OPENSSL_ENGINES.
559 [Geoff Thorpe and Richard Levitte]
561 *) Add Makefile.shared, a helper makefile to build shared
562 libraries. Addapt Makefile.org.
565 *) Add version info to Win32 DLLs.
566 [Peter 'Luna' Runestig" <peter@runestig.com>]
568 *) Add new 'medium level' PKCS#12 API. Certificates and keys
569 can be added using this API to created arbitrary PKCS#12
570 files while avoiding the low level API.
572 New options to PKCS12_create(), key or cert can be NULL and
573 will then be omitted from the output file. The encryption
574 algorithm NIDs can be set to -1 for no encryption, the mac
575 iteration count can be set to 0 to omit the mac.
577 Enhance pkcs12 utility by making the -nokeys and -nocerts
578 options work when creating a PKCS#12 file. New option -nomac
579 to omit the mac, NONE can be set for an encryption algorithm.
580 New code is modified to use the enhanced PKCS12_create()
581 instead of the low level API.
584 *) Extend ASN1 encoder to support indefinite length constructed
585 encoding. This can output sequences tags and octet strings in
586 this form. Modify pk7_asn1.c to support indefinite length
587 encoding. This is experimental and needs additional code to
588 be useful, such as an ASN1 bio and some enhanced streaming
591 Extend template encode functionality so that tagging is passed
592 down to the template encoder.
595 *) Let 'openssl req' fail if an argument to '-newkey' is not
596 recognized instead of using RSA as a default.
599 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
600 As these are not official, they are not included in "ALL";
601 the "ECCdraft" ciphersuite group alias can be used to select them.
602 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
604 *) Add ECDH engine support.
605 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
607 *) Add ECDH in new directory crypto/ecdh/.
608 [Douglas Stebila (Sun Microsystems Laboratories)]
610 *) Let BN_rand_range() abort with an error after 100 iterations
611 without success (which indicates a broken PRNG).
614 *) Change BN_mod_sqrt() so that it verifies that the input value
615 is really the square of the return value. (Previously,
616 BN_mod_sqrt would show GIGO behaviour.)
619 *) Add named elliptic curves over binary fields from X9.62, SECG,
620 and WAP/WTLS; add OIDs that were still missing.
622 [Sheueling Chang Shantz and Douglas Stebila
623 (Sun Microsystems Laboratories)]
625 *) Extend the EC library for elliptic curves over binary fields
626 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
629 EC_GF2m_simple_method
633 EC_GROUP_new_curve_GF2m
634 EC_GROUP_set_curve_GF2m
635 EC_GROUP_get_curve_GF2m
636 EC_POINT_set_affine_coordinates_GF2m
637 EC_POINT_get_affine_coordinates_GF2m
638 EC_POINT_set_compressed_coordinates_GF2m
640 Point compression for binary fields is disabled by default for
641 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
644 As binary polynomials are represented as BIGNUMs, various members
645 of the EC_GROUP and EC_POINT data structures can be shared
646 between the implementations for prime fields and binary fields;
647 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
648 are essentially identical to their ..._GFp counterparts.
649 (For simplicity, the '..._GFp' prefix has been dropped from
650 various internal method names.)
652 An internal 'field_div' method (similar to 'field_mul' and
653 'field_sqr') has been added; this is used only for binary fields.
655 [Sheueling Chang Shantz and Douglas Stebila
656 (Sun Microsystems Laboratories)]
658 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
659 through methods ('mul', 'precompute_mult').
661 The generic implementations (now internally called 'ec_wNAF_mul'
662 and 'ec_wNAF_precomputed_mult') remain the default if these
663 methods are undefined.
665 [Sheueling Chang Shantz and Douglas Stebila
666 (Sun Microsystems Laboratories)]
668 *) New function EC_GROUP_get_degree, which is defined through
669 EC_METHOD. For curves over prime fields, this returns the bit
670 length of the modulus.
672 [Sheueling Chang Shantz and Douglas Stebila
673 (Sun Microsystems Laboratories)]
675 *) New functions EC_GROUP_dup, EC_POINT_dup.
676 (These simply call ..._new and ..._copy).
678 [Sheueling Chang Shantz and Douglas Stebila
679 (Sun Microsystems Laboratories)]
681 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
682 Polynomials are represented as BIGNUMs (where the sign bit is not
683 used) in the following functions [macros]:
686 BN_GF2m_sub [= BN_GF2m_add]
687 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
688 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
689 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
691 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
692 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
693 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
694 BN_GF2m_cmp [= BN_ucmp]
696 (Note that only the 'mod' functions are actually for fields GF(2^m).
697 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
699 For some functions, an the irreducible polynomial defining a
700 field can be given as an 'unsigned int[]' with strictly
701 decreasing elements giving the indices of those bits that are set;
702 i.e., p[] represents the polynomial
703 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
705 p[0] > p[1] > ... > p[k] = 0.
706 This applies to the following functions:
711 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
712 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
715 BN_GF2m_mod_solve_quad_arr
719 Conversion can be performed by the following functions:
724 bntest.c has additional tests for binary polynomial arithmetic.
726 Two implementations for BN_GF2m_mod_div() are available.
727 The default algorithm simply uses BN_GF2m_mod_inv() and
728 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
729 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
730 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
732 [Sheueling Chang Shantz and Douglas Stebila
733 (Sun Microsystems Laboratories)]
735 *) Add new error code 'ERR_R_DISABLED' that can be used when some
736 functionality is disabled at compile-time.
737 [Douglas Stebila <douglas.stebila@sun.com>]
739 *) Change default behaviour of 'openssl asn1parse' so that more
740 information is visible when viewing, e.g., a certificate:
742 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
743 mode the content of non-printable OCTET STRINGs is output in a
744 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
745 avoid the appearance of a printable string.
746 [Nils Larsch <nla@trustcenter.de>]
748 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
750 EC_GROUP_set_asn1_flag()
751 EC_GROUP_get_asn1_flag()
752 EC_GROUP_set_point_conversion_form()
753 EC_GROUP_get_point_conversion_form()
754 These control ASN1 encoding details:
755 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
756 has been set to OPENSSL_EC_NAMED_CURVE.
757 - Points are encoded in uncompressed form by default; options for
758 asn1_for are as for point2oct, namely
759 POINT_CONVERSION_COMPRESSED
760 POINT_CONVERSION_UNCOMPRESSED
761 POINT_CONVERSION_HYBRID
763 Also add 'seed' and 'seed_len' members to EC_GROUP with access
767 EC_GROUP_get_seed_len()
768 This is used only for ASN1 purposes (so far).
769 [Nils Larsch <nla@trustcenter.de>]
771 *) Add 'field_type' member to EC_METHOD, which holds the NID
772 of the appropriate field type OID. The new function
773 EC_METHOD_get_field_type() returns this value.
774 [Nils Larsch <nla@trustcenter.de>]
781 providing useful interfaces to EC_POINT_point2oct() and
782 EC_POINT_oct2point().
783 [Nils Larsch <nla@trustcenter.de>]
785 *) Change internals of the EC library so that the functions
786 EC_GROUP_set_generator()
787 EC_GROUP_get_generator()
789 EC_GROUP_get_cofactor()
790 are implemented directly in crypto/ec/ec_lib.c and not dispatched
791 to methods, which would lead to unnecessary code duplication when
792 adding different types of curves.
793 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
795 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
796 arithmetic, and such that modified wNAFs are generated
797 (which avoid length expansion in many cases).
800 *) Add a function EC_GROUP_check_discriminant() (defined via
801 EC_METHOD) that verifies that the curve discriminant is non-zero.
803 Add a function EC_GROUP_check() that makes some sanity tests
804 on a EC_GROUP, its generator and order. This includes
805 EC_GROUP_check_discriminant().
806 [Nils Larsch <nla@trustcenter.de>]
808 *) Add ECDSA in new directory crypto/ecdsa/.
810 Add applications 'openssl ecparam' and 'openssl ecdsa'
811 (these are based on 'openssl dsaparam' and 'openssl dsa').
813 ECDSA support is also included in various other files across the
814 library. Most notably,
815 - 'openssl req' now has a '-newkey ecdsa:file' option;
816 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
817 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
818 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
819 them suitable for ECDSA where domain parameters must be
820 extracted before the specific public key;
821 - ECDSA engine support has been added.
822 [Nils Larsch <nla@trustcenter.de>]
824 *) Include some named elliptic curves, and add OIDs from X9.62,
825 SECG, and WAP/WTLS. Each curve can be obtained from the new
827 EC_GROUP_new_by_curve_name(),
828 and the list of available named curves can be obtained with
829 EC_get_builtin_curves().
830 Also add a 'curve_name' member to EC_GROUP objects, which can be
832 EC_GROUP_set_curve_name()
833 EC_GROUP_get_curve_name()
834 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
836 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
837 was actually never needed) and in BN_mul(). The removal in BN_mul()
838 required a small change in bn_mul_part_recursive() and the addition
839 of the functions bn_cmp_part_words(), bn_sub_part_words() and
840 bn_add_part_words(), which do the same thing as bn_cmp_words(),
841 bn_sub_words() and bn_add_words() except they take arrays with
845 Changes between 0.9.7g and 0.9.7h [XX xxx XXXX]
847 *) Minimal support for X9.31 signatures and PSS padding modes. This is
848 mainly for FIPS compliance and not fully integrated at this stage.
851 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
852 the exponentiation using a fixed-length exponent. (Otherwise,
853 the information leaked through timing could expose the secret key
854 after many signatures; cf. Bleichenbacher's attack on DSA with
858 *) Make a new fixed-window mod_exp implementation the default for
859 RSA, DSA, and DH private-key operations so that the sequence of
860 squares and multiplies and the memory access pattern are
861 independent of the particular secret key. This will mitigate
862 cache-timing and potential related attacks.
864 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
865 and this is automatically used by BN_mod_exp_mont() if the new flag
866 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
867 will use this BN flag for private exponents unless the flag
868 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
869 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
871 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
873 *) Change the client implementation for SSLv23_method() and
874 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
875 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
876 (Previously, the SSL 2.0 backwards compatible Client Hello
877 message format would be used even with SSL_OP_NO_SSLv2.)
880 *) Add support for smime-type MIME parameter in S/MIME messages which some
884 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
885 a threadsafe manner. Modify rsa code to use new function and add calls
886 to dsa and dh code (which had race conditions before).
889 *) Include the fixed error library code in the C error file definitions
890 instead of fixing them up at runtime. This keeps the error code
894 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
896 *) Fixes for newer kerberos headers. NB: the casts are needed because
897 the 'length' field is signed on one version and unsigned on another
898 with no (?) obvious way to tell the difference, without these VC++
899 complains. Also the "definition" of FAR (blank) is no longer included
900 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
901 some needed definitions.
904 *) Undo Cygwin change.
907 *) Added support for proxy certificates according to RFC 3820.
908 Because they may be a security thread to unaware applications,
909 they must be explicitely allowed in run-time. See
910 docs/HOWTO/proxy_certificates.txt for further information.
913 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
915 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
916 server and client random values. Previously
917 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
918 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
920 This change has negligible security impact because:
922 1. Server and client random values still have 24 bytes of pseudo random
925 2. Server and client random values are sent in the clear in the initial
928 3. The master secret is derived using the premaster secret (48 bytes in
929 size for static RSA ciphersuites) as well as client server and random
932 The OpenSSL team would like to thank the UK NISCC for bringing this issue
935 [Stephen Henson, reported by UK NISCC]
937 *) Use Windows randomness collection on Cygwin.
940 *) Fix hang in EGD/PRNGD query when communication socket is closed
941 prematurely by EGD/PRNGD.
942 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
944 *) Prompt for pass phrases when appropriate for PKCS12 input format.
947 *) Back-port of selected performance improvements from development
948 branch, as well as improved support for PowerPC platforms.
951 *) Add lots of checks for memory allocation failure, error codes to indicate
952 failure and freeing up memory if a failure occurs.
953 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
955 *) Add new -passin argument to dgst.
958 *) Perform some character comparisons of different types in X509_NAME_cmp:
959 this is needed for some certificates that reencode DNs into UTF8Strings
960 (in violation of RFC3280) and can't or wont issue name rollover
964 *) Make an explicit check during certificate validation to see that
965 the CA setting in each certificate on the chain is correct. As a
966 side effect always do the following basic checks on extensions,
967 not just when there's an associated purpose to the check:
969 - if there is an unhandled critical extension (unless the user
970 has chosen to ignore this fault)
971 - if the path length has been exceeded (if one is set at all)
972 - that certain extensions fit the associated purpose (if one has
976 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
978 *) Avoid a race condition when CRLs are checked in a multi threaded
979 environment. This would happen due to the reordering of the revoked
980 entries during signature checking and serial number lookup. Now the
981 encoding is cached and the serial number sort performed under a lock.
982 Add new STACK function sk_is_sorted().
985 *) Add Delta CRL to the extension code.
988 *) Various fixes to s3_pkt.c so alerts are sent properly.
989 [David Holmes <d.holmes@f5.com>]
991 *) Reduce the chances of duplicate issuer name and serial numbers (in
992 violation of RFC3280) using the OpenSSL certificate creation utilities.
993 This is done by creating a random 64 bit value for the initial serial
994 number when a serial number file is created or when a self signed
995 certificate is created using 'openssl req -x509'. The initial serial
996 number file is created using 'openssl x509 -next_serial' in CA.pl
997 rather than being initialized to 1.
1000 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
1002 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
1003 by using the Codenomicon TLS Test Tool (CAN-2004-0079)
1004 [Joe Orton, Steve Henson]
1006 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
1008 [Joe Orton, Steve Henson]
1010 *) Make it possible to have multiple active certificates with the same
1011 subject in the CA index file. This is done only if the keyword
1012 'unique_subject' is set to 'no' in the main CA section (default
1013 if 'CA_default') of the configuration file. The value is saved
1014 with the database itself in a separate index attribute file,
1015 named like the index file with '.attr' appended to the name.
1018 *) X509 verify fixes. Disable broken certificate workarounds when
1019 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
1020 keyUsage extension present. Don't accept CRLs with unhandled critical
1021 extensions: since verify currently doesn't process CRL extensions this
1022 rejects a CRL with *any* critical extensions. Add new verify error codes
1026 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
1027 A clarification of RFC2560 will require the use of OCTET STRINGs and
1028 some implementations cannot handle the current raw format. Since OpenSSL
1029 copies and compares OCSP nonces as opaque blobs without any attempt at
1030 parsing them this should not create any compatibility issues.
1033 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
1034 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
1035 this HMAC (and other) operations are several times slower than OpenSSL
1039 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
1040 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1042 *) Use the correct content when signing type "other".
1045 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
1047 *) Fix various bugs revealed by running the NISCC test suite:
1049 Stop out of bounds reads in the ASN1 code when presented with
1050 invalid tags (CAN-2003-0543 and CAN-2003-0544).
1052 Free up ASN1_TYPE correctly if ANY type is invalid (CAN-2003-0545).
1054 If verify callback ignores invalid public key errors don't try to check
1055 certificate signature with the NULL public key.
1059 *) New -ignore_err option in ocsp application to stop the server
1060 exiting on the first error in a request.
1063 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
1064 if the server requested one: as stated in TLS 1.0 and SSL 3.0
1068 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
1069 extra data after the compression methods not only for TLS 1.0
1070 but also for SSL 3.0 (as required by the specification).
1071 [Bodo Moeller; problem pointed out by Matthias Loepfe]
1073 *) Change X509_certificate_type() to mark the key as exported/exportable
1074 when it's 512 *bits* long, not 512 bytes.
1077 *) Change AES_cbc_encrypt() so it outputs exact multiple of
1078 blocks during encryption.
1081 *) Various fixes to base64 BIO and non blocking I/O. On write
1082 flushes were not handled properly if the BIO retried. On read
1083 data was not being buffered properly and had various logic bugs.
1084 This also affects blocking I/O when the data being decoded is a
1088 *) Various S/MIME bugfixes and compatibility changes:
1089 output correct application/pkcs7 MIME type if
1090 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
1091 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
1092 of files as .eml work). Correctly handle very long lines in MIME
1096 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
1098 *) Countermeasure against the Klima-Pokorny-Rosa extension of
1099 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
1100 a protocol version number mismatch like a decryption error
1101 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
1104 *) Turn on RSA blinding by default in the default implementation
1105 to avoid a timing attack. Applications that don't want it can call
1106 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
1107 They would be ill-advised to do so in most cases.
1108 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
1110 *) Change RSA blinding code so that it works when the PRNG is not
1111 seeded (in this case, the secret RSA exponent is abused as
1112 an unpredictable seed -- if it is not unpredictable, there
1113 is no point in blinding anyway). Make RSA blinding thread-safe
1114 by remembering the creator's thread ID in rsa->blinding and
1115 having all other threads use local one-time blinding factors
1116 (this requires more computation than sharing rsa->blinding, but
1117 avoids excessive locking; and if an RSA object is not shared
1118 between threads, blinding will still be very fast).
1121 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
1122 ENGINE as defaults for all supported algorithms irrespective of
1123 the 'flags' parameter. 'flags' is now honoured, so applications
1124 should make sure they are passing it correctly.
1127 *) Target "mingw" now allows native Windows code to be generated in
1128 the Cygwin environment as well as with the MinGW compiler.
1131 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
1133 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
1134 via timing by performing a MAC computation even if incorrrect
1135 block cipher padding has been found. This is a countermeasure
1136 against active attacks where the attacker has to distinguish
1137 between bad padding and a MAC verification error. (CAN-2003-0078)
1139 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
1140 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
1141 Martin Vuagnoux (EPFL, Ilion)]
1143 *) Make the no-err option work as intended. The intention with no-err
1144 is not to have the whole error stack handling routines removed from
1145 libcrypto, it's only intended to remove all the function name and
1146 reason texts, thereby removing some of the footprint that may not
1147 be interesting if those errors aren't displayed anyway.
1149 NOTE: it's still possible for any application or module to have it's
1150 own set of error texts inserted. The routines are there, just not
1151 used by default when no-err is given.
1154 *) Add support for FreeBSD on IA64.
1155 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
1157 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
1158 Kerberos function mit_des_cbc_cksum(). Before this change,
1159 the value returned by DES_cbc_cksum() was like the one from
1160 mit_des_cbc_cksum(), except the bytes were swapped.
1161 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
1163 *) Allow an application to disable the automatic SSL chain building.
1164 Before this a rather primitive chain build was always performed in
1165 ssl3_output_cert_chain(): an application had no way to send the
1166 correct chain if the automatic operation produced an incorrect result.
1168 Now the chain builder is disabled if either:
1170 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
1172 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
1174 The reasoning behind this is that an application would not want the
1175 auto chain building to take place if extra chain certificates are
1176 present and it might also want a means of sending no additional
1177 certificates (for example the chain has two certificates and the
1181 *) Add the possibility to build without the ENGINE framework.
1182 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1184 *) Under Win32 gmtime() can return NULL: check return value in
1185 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
1188 *) DSA routines: under certain error conditions uninitialized BN objects
1189 could be freed. Solution: make sure initialization is performed early
1190 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
1191 Nils Larsch <nla@trustcenter.de> via PR#459)
1194 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
1195 checked on reconnect on the client side, therefore session resumption
1196 could still fail with a "ssl session id is different" error. This
1197 behaviour is masked when SSL_OP_ALL is used due to
1198 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
1199 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1200 followup to PR #377.
1203 *) IA-32 assembler support enhancements: unified ELF targets, support
1204 for SCO/Caldera platforms, fix for Cygwin shared build.
1207 *) Add support for FreeBSD on sparc64. As a consequence, support for
1208 FreeBSD on non-x86 processors is separate from x86 processors on
1209 the config script, much like the NetBSD support.
1210 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
1212 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
1214 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
1217 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
1218 code (06) was taken as the first octet of the session ID and the last
1219 octet was ignored consequently. As a result SSLv2 client side session
1220 caching could not have worked due to the session ID mismatch between
1222 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1226 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
1227 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
1231 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
1232 seems that in spite of existing for more than a year, many application
1233 author have done nothing to provide the necessary callbacks, which
1234 means that this particular engine will not work properly anywhere.
1235 This is a very unfortunate situation which forces us, in the name
1236 of usability, to give the hw_ncipher.c a static lock, which is part
1238 NOTE: This is for the 0.9.7 series ONLY. This hack will never
1239 appear in 0.9.8 or later. We EXPECT application authors to have
1240 dealt properly with this when 0.9.8 is released (unless we actually
1241 make such changes in the libcrypto locking code that changes will
1242 have to be made anyway).
1245 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
1246 octets have been read, EOF or an error occurs. Without this change
1247 some truncated ASN1 structures will not produce an error.
1250 *) Disable Heimdal support, since it hasn't been fully implemented.
1251 Still give the possibility to force the use of Heimdal, but with
1252 warnings and a request that patches get sent to openssl-dev.
1255 *) Add the VC-CE target, introduce the WINCE sysname, and add
1256 INSTALL.WCE and appropriate conditionals to make it build.
1257 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1259 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
1260 cygssl-x.y.z.dll, where x, y and z are the major, minor and
1261 edit numbers of the version.
1262 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
1264 *) Introduce safe string copy and catenation functions
1265 (BUF_strlcpy() and BUF_strlcat()).
1266 [Ben Laurie (CHATS) and Richard Levitte]
1268 *) Avoid using fixed-size buffers for one-line DNs.
1269 [Ben Laurie (CHATS)]
1271 *) Add BUF_MEM_grow_clean() to avoid information leakage when
1272 resizing buffers containing secrets, and use where appropriate.
1273 [Ben Laurie (CHATS)]
1275 *) Avoid using fixed size buffers for configuration file location.
1276 [Ben Laurie (CHATS)]
1278 *) Avoid filename truncation for various CA files.
1279 [Ben Laurie (CHATS)]
1281 *) Use sizeof in preference to magic numbers.
1282 [Ben Laurie (CHATS)]
1284 *) Avoid filename truncation in cert requests.
1285 [Ben Laurie (CHATS)]
1287 *) Add assertions to check for (supposedly impossible) buffer
1289 [Ben Laurie (CHATS)]
1291 *) Don't cache truncated DNS entries in the local cache (this could
1292 potentially lead to a spoofing attack).
1293 [Ben Laurie (CHATS)]
1295 *) Fix various buffers to be large enough for hex/decimal
1296 representations in a platform independent manner.
1297 [Ben Laurie (CHATS)]
1299 *) Add CRYPTO_realloc_clean() to avoid information leakage when
1300 resizing buffers containing secrets, and use where appropriate.
1301 [Ben Laurie (CHATS)]
1303 *) Add BIO_indent() to avoid much slightly worrying code to do
1305 [Ben Laurie (CHATS)]
1307 *) Convert sprintf()/BIO_puts() to BIO_printf().
1308 [Ben Laurie (CHATS)]
1310 *) buffer_gets() could terminate with the buffer only half
1312 [Ben Laurie (CHATS)]
1314 *) Add assertions to prevent user-supplied crypto functions from
1315 overflowing internal buffers by having large block sizes, etc.
1316 [Ben Laurie (CHATS)]
1318 *) New OPENSSL_assert() macro (similar to assert(), but enabled
1320 [Ben Laurie (CHATS)]
1322 *) Eliminate unused copy of key in RC4.
1323 [Ben Laurie (CHATS)]
1325 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
1326 [Ben Laurie (CHATS)]
1328 *) Fix off-by-one error in EGD path.
1329 [Ben Laurie (CHATS)]
1331 *) If RANDFILE path is too long, ignore instead of truncating.
1332 [Ben Laurie (CHATS)]
1334 *) Eliminate unused and incorrectly sized X.509 structure
1336 [Ben Laurie (CHATS)]
1338 *) Eliminate unused and dangerous function knumber().
1339 [Ben Laurie (CHATS)]
1341 *) Eliminate unused and dangerous structure, KSSL_ERR.
1342 [Ben Laurie (CHATS)]
1344 *) Protect against overlong session ID context length in an encoded
1345 session object. Since these are local, this does not appear to be
1347 [Ben Laurie (CHATS)]
1349 *) Change from security patch (see 0.9.6e below) that did not affect
1350 the 0.9.6 release series:
1352 Remote buffer overflow in SSL3 protocol - an attacker could
1353 supply an oversized master key in Kerberos-enabled versions.
1355 [Ben Laurie (CHATS)]
1357 *) Change the SSL kerb5 codes to match RFC 2712.
1360 *) Make -nameopt work fully for req and add -reqopt switch.
1361 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
1363 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
1364 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
1366 *) Make sure tests can be performed even if the corresponding algorithms
1367 have been removed entirely. This was also the last step to make
1368 OpenSSL compilable with DJGPP under all reasonable conditions.
1369 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
1371 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
1372 to allow version independent disabling of normally unselected ciphers,
1373 which may be activated as a side-effect of selecting a single cipher.
1375 (E.g., cipher list string "RSA" enables ciphersuites that are left
1376 out of "ALL" because they do not provide symmetric encryption.
1377 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
1378 [Lutz Jaenicke, Bodo Moeller]
1380 *) Add appropriate support for separate platform-dependent build
1381 directories. The recommended way to make a platform-dependent
1382 build directory is the following (tested on Linux), maybe with
1385 # Place yourself outside of the OpenSSL source tree. In
1386 # this example, the environment variable OPENSSL_SOURCE
1387 # is assumed to contain the absolute OpenSSL source directory.
1388 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
1389 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
1390 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
1391 mkdir -p `dirname $F`
1392 ln -s $OPENSSL_SOURCE/$F $F
1395 To be absolutely sure not to disturb the source tree, a "make clean"
1396 is a good thing. If it isn't successfull, don't worry about it,
1397 it probably means the source directory is very clean.
1400 *) Make sure any ENGINE control commands make local copies of string
1401 pointers passed to them whenever necessary. Otherwise it is possible
1402 the caller may have overwritten (or deallocated) the original string
1403 data when a later ENGINE operation tries to use the stored values.
1404 [Götz Babin-Ebell <babinebell@trustcenter.de>]
1406 *) Improve diagnostics in file reading and command-line digests.
1407 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
1409 *) Add AES modes CFB and OFB to the object database. Correct an
1410 error in AES-CFB decryption.
1413 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
1414 allows existing EVP_CIPHER_CTX structures to be reused after
1415 calling EVP_*Final(). This behaviour is used by encryption
1416 BIOs and some applications. This has the side effect that
1417 applications must explicitly clean up cipher contexts with
1418 EVP_CIPHER_CTX_cleanup() or they will leak memory.
1421 *) Check the values of dna and dnb in bn_mul_recursive before calling
1422 bn_mul_comba (a non zero value means the a or b arrays do not contain
1423 n2 elements) and fallback to bn_mul_normal if either is not zero.
1426 *) Fix escaping of non-ASCII characters when using the -subj option
1427 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
1430 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
1431 form for "surname", serialNumber has no short form.
1432 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
1433 therefore remove "mail" short name for "internet 7".
1434 The OID for unique identifiers in X509 certificates is
1435 x500UniqueIdentifier, not uniqueIdentifier.
1436 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
1439 *) Add an "init" command to the ENGINE config module and auto initialize
1440 ENGINEs. Without any "init" command the ENGINE will be initialized
1441 after all ctrl commands have been executed on it. If init=1 the
1442 ENGINE is initailized at that point (ctrls before that point are run
1443 on the uninitialized ENGINE and after on the initialized one). If
1444 init=0 then the ENGINE will not be iniatialized at all.
1447 *) Fix the 'app_verify_callback' interface so that the user-defined
1448 argument is actually passed to the callback: In the
1449 SSL_CTX_set_cert_verify_callback() prototype, the callback
1450 declaration has been changed from
1453 int (*cb)(X509_STORE_CTX *,void *);
1454 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
1455 i=s->ctx->app_verify_callback(&ctx)
1456 has been changed into
1457 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
1459 To update applications using SSL_CTX_set_cert_verify_callback(),
1460 a dummy argument can be added to their callback functions.
1461 [D. K. Smetters <smetters@parc.xerox.com>]
1463 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
1464 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
1466 *) Add and OPENSSL_LOAD_CONF define which will cause
1467 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
1468 This allows older applications to transparently support certain
1469 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
1470 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
1471 load the config file and OPENSSL_add_all_algorithms_conf() which will
1472 always load it have also been added.
1475 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
1476 Adjust NIDs and EVP layer.
1477 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
1479 *) Config modules support in openssl utility.
1481 Most commands now load modules from the config file,
1482 though in a few (such as version) this isn't done
1483 because it couldn't be used for anything.
1485 In the case of ca and req the config file used is
1486 the same as the utility itself: that is the -config
1487 command line option can be used to specify an
1491 *) Move default behaviour from OPENSSL_config(). If appname is NULL
1492 use "openssl_conf" if filename is NULL use default openssl config file.
1495 *) Add an argument to OPENSSL_config() to allow the use of an alternative
1496 config section name. Add a new flag to tolerate a missing config file
1497 and move code to CONF_modules_load_file().
1500 *) Support for crypto accelerator cards from Accelerated Encryption
1501 Processing, www.aep.ie. (Use engine 'aep')
1502 The support was copied from 0.9.6c [engine] and adapted/corrected
1503 to work with the new engine framework.
1504 [AEP Inc. and Richard Levitte]
1506 *) Support for SureWare crypto accelerator cards from Baltimore
1507 Technologies. (Use engine 'sureware')
1508 The support was copied from 0.9.6c [engine] and adapted
1509 to work with the new engine framework.
1512 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
1513 make the newer ENGINE framework commands for the CHIL engine work.
1514 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
1516 *) Make it possible to produce shared libraries on ReliantUNIX.
1517 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
1519 *) Add the configuration target debug-linux-ppro.
1520 Make 'openssl rsa' use the general key loading routines
1521 implemented in apps.c, and make those routines able to
1522 handle the key format FORMAT_NETSCAPE and the variant
1524 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
1526 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
1527 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
1529 *) Add -keyform to rsautl, and document -engine.
1530 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
1532 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
1533 BIO_R_NO_SUCH_FILE error code rather than the generic
1534 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
1537 *) Add new functions
1539 ERR_peek_last_error_line
1540 ERR_peek_last_error_line_data.
1541 These are similar to
1544 ERR_peek_error_line_data,
1545 but report on the latest error recorded rather than the first one
1546 still in the error queue.
1547 [Ben Laurie, Bodo Moeller]
1549 *) default_algorithms option in ENGINE config module. This allows things
1551 default_algorithms = ALL
1552 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
1555 *) Prelminary ENGINE config module.
1558 *) New experimental application configuration code.
1561 *) Change the AES code to follow the same name structure as all other
1562 symmetric ciphers, and behave the same way. Move everything to
1563 the directory crypto/aes, thereby obsoleting crypto/rijndael.
1564 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
1566 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
1567 [Ben Laurie and Theo de Raadt]
1569 *) Add option to output public keys in req command.
1570 [Massimiliano Pala madwolf@openca.org]
1572 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
1573 (up to about 10% better than before for P-192 and P-224).
1576 *) New functions/macros
1578 SSL_CTX_set_msg_callback(ctx, cb)
1579 SSL_CTX_set_msg_callback_arg(ctx, arg)
1580 SSL_set_msg_callback(ssl, cb)
1581 SSL_set_msg_callback_arg(ssl, arg)
1583 to request calling a callback function
1585 void cb(int write_p, int version, int content_type,
1586 const void *buf, size_t len, SSL *ssl, void *arg)
1588 whenever a protocol message has been completely received
1589 (write_p == 0) or sent (write_p == 1). Here 'version' is the
1590 protocol version according to which the SSL library interprets
1591 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
1592 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
1593 the content type as defined in the SSL 3.0/TLS 1.0 protocol
1594 specification (change_cipher_spec(20), alert(21), handshake(22)).
1595 'buf' and 'len' point to the actual message, 'ssl' to the
1596 SSL object, and 'arg' is the application-defined value set by
1597 SSL[_CTX]_set_msg_callback_arg().
1599 'openssl s_client' and 'openssl s_server' have new '-msg' options
1600 to enable a callback that displays all protocol messages.
1603 *) Change the shared library support so shared libraries are built as
1604 soon as the corresponding static library is finished, and thereby get
1605 openssl and the test programs linked against the shared library.
1606 This still only happens when the keyword "shard" has been given to
1607 the configuration scripts.
1609 NOTE: shared library support is still an experimental thing, and
1610 backward binary compatibility is still not guaranteed.
1611 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
1613 *) Add support for Subject Information Access extension.
1614 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1616 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
1617 additional bytes when new memory had to be allocated, not just
1618 when reusing an existing buffer.
1621 *) New command line and configuration option 'utf8' for the req command.
1622 This allows field values to be specified as UTF8 strings.
1625 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
1626 runs for the former and machine-readable output for the latter.
1629 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
1630 of the e-mail address in the DN (i.e., it will go into a certificate
1631 extension only). The new configuration file option 'email_in_dn = no'
1632 has the same effect.
1633 [Massimiliano Pala madwolf@openca.org]
1635 *) Change all functions with names starting with des_ to be starting
1636 with DES_ instead. Add wrappers that are compatible with libdes,
1637 but are named _ossl_old_des_*. Finally, add macros that map the
1638 des_* symbols to the corresponding _ossl_old_des_* if libdes
1639 compatibility is desired. If OpenSSL 0.9.6c compatibility is
1640 desired, the des_* symbols will be mapped to DES_*, with one
1643 Since we provide two compatibility mappings, the user needs to
1644 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
1645 compatibility is desired. The default (i.e., when that macro
1646 isn't defined) is OpenSSL 0.9.6c compatibility.
1648 There are also macros that enable and disable the support of old
1649 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
1650 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
1651 are defined, the default will apply: to support the old des routines.
1653 In either case, one must include openssl/des.h to get the correct
1654 definitions. Do not try to just include openssl/des_old.h, that
1657 NOTE: This is a major break of an old API into a new one. Software
1658 authors are encouraged to switch to the DES_ style functions. Some
1659 time in the future, des_old.h and the libdes compatibility functions
1660 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
1661 default), and then completely removed.
1664 *) Test for certificates which contain unsupported critical extensions.
1665 If such a certificate is found during a verify operation it is
1666 rejected by default: this behaviour can be overridden by either
1667 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
1668 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
1669 X509_supported_extension() has also been added which returns 1 if a
1670 particular extension is supported.
1673 *) Modify the behaviour of EVP cipher functions in similar way to digests
1674 to retain compatibility with existing code.
1677 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
1678 compatibility with existing code. In particular the 'ctx' parameter does
1679 not have to be to be initialized before the call to EVP_DigestInit() and
1680 it is tidied up after a call to EVP_DigestFinal(). New function
1681 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
1682 EVP_MD_CTX_copy() changed to not require the destination to be
1683 initialized valid and new function EVP_MD_CTX_copy_ex() added which
1684 requires the destination to be valid.
1686 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
1687 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
1690 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
1691 so that complete 'Handshake' protocol structures are kept in memory
1692 instead of overwriting 'msg_type' and 'length' with 'body' data.
1695 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
1696 [Massimo Santin via Richard Levitte]
1698 *) Major restructuring to the underlying ENGINE code. This includes
1699 reduction of linker bloat, separation of pure "ENGINE" manipulation
1700 (initialisation, etc) from functionality dealing with implementations
1701 of specific crypto iterfaces. This change also introduces integrated
1702 support for symmetric ciphers and digest implementations - so ENGINEs
1703 can now accelerate these by providing EVP_CIPHER and EVP_MD
1704 implementations of their own. This is detailed in crypto/engine/README
1705 as it couldn't be adequately described here. However, there are a few
1706 API changes worth noting - some RSA, DSA, DH, and RAND functions that
1707 were changed in the original introduction of ENGINE code have now
1708 reverted back - the hooking from this code to ENGINE is now a good
1709 deal more passive and at run-time, operations deal directly with
1710 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
1711 dereferencing through an ENGINE pointer any more. Also, the ENGINE
1712 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
1713 they were not being used by the framework as there is no concept of a
1714 BIGNUM_METHOD and they could not be generalised to the new
1715 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
1716 ENGINE_cpy() has been removed as it cannot be consistently defined in
1720 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
1723 *) Change mkdef.pl to sort symbols that get the same entry number,
1724 and make sure the automatically generated functions ERR_load_*
1725 become part of libeay.num as well.
1728 *) New function SSL_renegotiate_pending(). This returns true once
1729 renegotiation has been requested (either SSL_renegotiate() call
1730 or HelloRequest/ClientHello receveived from the peer) and becomes
1731 false once a handshake has been completed.
1732 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
1733 sends a HelloRequest, but does not ensure that a handshake takes
1734 place. SSL_renegotiate_pending() is useful for checking if the
1735 client has followed the request.)
1738 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
1739 By default, clients may request session resumption even during
1740 renegotiation (if session ID contexts permit); with this option,
1741 session resumption is possible only in the first handshake.
1743 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
1744 more bits available for options that should not be part of
1745 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
1748 *) Add some demos for certificate and certificate request creation.
1751 *) Make maximum certificate chain size accepted from the peer application
1752 settable (SSL*_get/set_max_cert_list()), as proposed by
1753 "Douglas E. Engert" <deengert@anl.gov>.
1756 *) Add support for shared libraries for Unixware-7
1757 (Boyd Lynn Gerber <gerberb@zenez.com>).
1760 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
1761 be done prior to destruction. Use this to unload error strings from
1762 ENGINEs that load their own error strings. NB: This adds two new API
1763 functions to "get" and "set" this destroy handler in an ENGINE.
1766 *) Alter all existing ENGINE implementations (except "openssl" and
1767 "openbsd") to dynamically instantiate their own error strings. This
1768 makes them more flexible to be built both as statically-linked ENGINEs
1769 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
1770 Also, add stub code to each that makes building them as self-contained
1771 shared-libraries easier (see README.ENGINE).
1774 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
1775 implementations into applications that are completely implemented in
1776 self-contained shared-libraries. The "dynamic" ENGINE exposes control
1777 commands that can be used to configure what shared-library to load and
1778 to control aspects of the way it is handled. Also, made an update to
1779 the README.ENGINE file that brings its information up-to-date and
1780 provides some information and instructions on the "dynamic" ENGINE
1781 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
1784 *) Make it possible to unload ranges of ERR strings with a new
1785 "ERR_unload_strings" function.
1788 *) Add a copy() function to EVP_MD.
1791 *) Make EVP_MD routines take a context pointer instead of just the
1792 md_data void pointer.
1795 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
1796 that the digest can only process a single chunk of data
1797 (typically because it is provided by a piece of
1798 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
1799 is only going to provide a single chunk of data, and hence the
1800 framework needn't accumulate the data for oneshot drivers.
1803 *) As with "ERR", make it possible to replace the underlying "ex_data"
1804 functions. This change also alters the storage and management of global
1805 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
1806 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
1807 index counters. The API functions that use this state have been changed
1808 to take a "class_index" rather than pointers to the class's local STACK
1809 and counter, and there is now an API function to dynamically create new
1810 classes. This centralisation allows us to (a) plug a lot of the
1811 thread-safety problems that existed, and (b) makes it possible to clean
1812 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
1813 such data would previously have always leaked in application code and
1814 workarounds were in place to make the memory debugging turn a blind eye
1815 to it. Application code that doesn't use this new function will still
1816 leak as before, but their memory debugging output will announce it now
1817 rather than letting it slide.
1819 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
1820 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
1821 has a return value to indicate success or failure.
1824 *) Make it possible to replace the underlying "ERR" functions such that the
1825 global state (2 LHASH tables and 2 locks) is only used by the "default"
1826 implementation. This change also adds two functions to "get" and "set"
1827 the implementation prior to it being automatically set the first time
1828 any other ERR function takes place. Ie. an application can call "get",
1829 pass the return value to a module it has just loaded, and that module
1830 can call its own "set" function using that value. This means the
1831 module's "ERR" operations will use (and modify) the error state in the
1832 application and not in its own statically linked copy of OpenSSL code.
1835 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
1836 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
1837 the operation, and provides a more encapsulated way for external code
1838 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
1839 to use these functions rather than manually incrementing the counts.
1841 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
1844 *) Add EVP test program.
1847 *) Add symmetric cipher support to ENGINE. Expect the API to change!
1850 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
1851 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
1852 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
1853 These allow a CRL to be built without having to access X509_CRL fields
1854 directly. Modify 'ca' application to use new functions.
1857 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
1858 bug workarounds. Rollback attack detection is a security feature.
1859 The problem will only arise on OpenSSL servers when TLSv1 is not
1860 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
1861 Software authors not wanting to support TLSv1 will have special reasons
1862 for their choice and can explicitly enable this option.
1863 [Bodo Moeller, Lutz Jaenicke]
1865 *) Rationalise EVP so it can be extended: don't include a union of
1866 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
1867 (similar to those existing for EVP_CIPHER_CTX).
1872 EVP_MD_CTX_init(&md); /* new function call */
1873 EVP_DigestInit(&md, EVP_sha1());
1874 EVP_DigestUpdate(&md, in, len);
1875 EVP_DigestFinal(&md, out, NULL);
1876 EVP_MD_CTX_cleanup(&md); /* new function call */
1880 *) Make DES key schedule conform to the usual scheme, as well as
1881 correcting its structure. This means that calls to DES functions
1882 now have to pass a pointer to a des_key_schedule instead of a
1883 plain des_key_schedule (which was actually always a pointer
1886 des_key_schedule ks;
1888 des_set_key_checked(..., &ks);
1889 des_ncbc_encrypt(..., &ks, ...);
1891 (Note that a later change renames 'des_...' into 'DES_...'.)
1894 *) Initial reduction of linker bloat: the use of some functions, such as
1895 PEM causes large amounts of unused functions to be linked in due to
1896 poor organisation. For example pem_all.c contains every PEM function
1897 which has a knock on effect of linking in large amounts of (unused)
1898 ASN1 code. Grouping together similar functions and splitting unrelated
1899 functions prevents this.
1902 *) Cleanup of EVP macros.
1905 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
1906 correct _ecb suffix.
1909 *) Add initial OCSP responder support to ocsp application. The
1910 revocation information is handled using the text based index
1911 use by the ca application. The responder can either handle
1912 requests generated internally, supplied in files (for example
1913 via a CGI script) or using an internal minimal server.
1916 *) Add configuration choices to get zlib compression for TLS.
1919 *) Changes to Kerberos SSL for RFC 2712 compliance:
1920 1. Implemented real KerberosWrapper, instead of just using
1921 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
1922 2. Implemented optional authenticator field of KerberosWrapper.
1924 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
1925 and authenticator structs; see crypto/krb5/.
1927 Generalized Kerberos calls to support multiple Kerberos libraries.
1928 [Vern Staats <staatsvr@asc.hpc.mil>,
1929 Jeffrey Altman <jaltman@columbia.edu>
1930 via Richard Levitte]
1932 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
1933 already does with RSA. testdsa.h now has 'priv_key/pub_key'
1934 values for each of the key sizes rather than having just
1935 parameters (and 'speed' generating keys each time).
1938 *) Speed up EVP routines.
1941 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
1942 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
1943 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
1944 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
1946 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
1947 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
1948 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
1951 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
1953 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
1956 *) Added the OS2-EMX target.
1957 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
1959 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
1960 to support NCONF routines in extension code. New function CONF_set_nconf()
1961 to allow functions which take an NCONF to also handle the old LHASH
1962 structure: this means that the old CONF compatible routines can be
1963 retained (in particular wrt extensions) without having to duplicate the
1964 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
1967 *) Enhance the general user interface with mechanisms for inner control
1968 and with possibilities to have yes/no kind of prompts.
1971 *) Change all calls to low level digest routines in the library and
1972 applications to use EVP. Add missing calls to HMAC_cleanup() and
1973 don't assume HMAC_CTX can be copied using memcpy().
1974 [Verdon Walker <VWalker@novell.com>, Steve Henson]
1976 *) Add the possibility to control engines through control names but with
1977 arbitrary arguments instead of just a string.
1978 Change the key loaders to take a UI_METHOD instead of a callback
1979 function pointer. NOTE: this breaks binary compatibility with earlier
1980 versions of OpenSSL [engine].
1981 Adapt the nCipher code for these new conditions and add a card insertion
1985 *) Enhance the general user interface with mechanisms to better support
1986 dialog box interfaces, application-defined prompts, the possibility
1987 to use defaults (for example default passwords from somewhere else)
1988 and interrupts/cancellations.
1991 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
1992 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
1995 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
1996 tidy up some unnecessarily weird code in 'sk_new()').
1997 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
1999 *) Change the key loading routines for ENGINEs to use the same kind
2000 callback (pem_password_cb) as all other routines that need this
2004 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
2005 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
2006 than this minimum value is recommended.
2009 *) New random seeder for OpenVMS, using the system process statistics
2010 that are easily reachable.
2013 *) Windows apparently can't transparently handle global
2014 variables defined in DLLs. Initialisations such as:
2016 const ASN1_ITEM *it = &ASN1_INTEGER_it;
2018 wont compile. This is used by the any applications that need to
2019 declare their own ASN1 modules. This was fixed by adding the option
2020 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
2021 needed for static libraries under Win32.
2024 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
2025 setting of purpose and trust fields. New X509_STORE trust and
2026 purpose functions and tidy up setting in other SSL functions.
2029 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
2030 structure. These are inherited by X509_STORE_CTX when it is
2031 initialised. This allows various defaults to be set in the
2032 X509_STORE structure (such as flags for CRL checking and custom
2033 purpose or trust settings) for functions which only use X509_STORE_CTX
2034 internally such as S/MIME.
2036 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
2037 trust settings if they are not set in X509_STORE. This allows X509_STORE
2038 purposes and trust (in S/MIME for example) to override any set by default.
2040 Add command line options for CRL checking to smime, s_client and s_server
2044 *) Initial CRL based revocation checking. If the CRL checking flag(s)
2045 are set then the CRL is looked up in the X509_STORE structure and
2046 its validity and signature checked, then if the certificate is found
2047 in the CRL the verify fails with a revoked error.
2049 Various new CRL related callbacks added to X509_STORE_CTX structure.
2051 Command line options added to 'verify' application to support this.
2053 This needs some additional work, such as being able to handle multiple
2054 CRLs with different times, extension based lookup (rather than just
2055 by subject name) and ultimately more complete V2 CRL extension
2059 *) Add a general user interface API (crypto/ui/). This is designed
2060 to replace things like des_read_password and friends (backward
2061 compatibility functions using this new API are provided).
2062 The purpose is to remove prompting functions from the DES code
2063 section as well as provide for prompting through dialog boxes in
2064 a window system and the like.
2067 *) Add "ex_data" support to ENGINE so implementations can add state at a
2068 per-structure level rather than having to store it globally.
2071 *) Make it possible for ENGINE structures to be copied when retrieved by
2072 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
2073 This causes the "original" ENGINE structure to act like a template,
2074 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
2075 operational state can be localised to each ENGINE structure, despite the
2076 fact they all share the same "methods". New ENGINE structures returned in
2077 this case have no functional references and the return value is the single
2078 structural reference. This matches the single structural reference returned
2079 by ENGINE_by_id() normally, when it is incremented on the pre-existing
2083 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
2084 needs to match any other type at all we need to manually clear the
2088 *) Changes to the "openssl engine" utility to include;
2089 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
2090 about an ENGINE's available control commands.
2091 - executing control commands from command line arguments using the
2092 '-pre' and '-post' switches. '-post' is only used if '-t' is
2093 specified and the ENGINE is successfully initialised. The syntax for
2094 the individual commands are colon-separated, for example;
2095 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
2098 *) New dynamic control command support for ENGINEs. ENGINEs can now
2099 declare their own commands (numbers), names (strings), descriptions,
2100 and input types for run-time discovery by calling applications. A
2101 subset of these commands are implicitly classed as "executable"
2102 depending on their input type, and only these can be invoked through
2103 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
2104 can be based on user input, config files, etc). The distinction is
2105 that "executable" commands cannot return anything other than a boolean
2106 result and can only support numeric or string input, whereas some
2107 discoverable commands may only be for direct use through
2108 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
2109 pointers, or other custom uses. The "executable" commands are to
2110 support parameterisations of ENGINE behaviour that can be
2111 unambiguously defined by ENGINEs and used consistently across any
2112 OpenSSL-based application. Commands have been added to all the
2113 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
2114 control over shared-library paths without source code alterations.
2117 *) Changed all ENGINE implementations to dynamically allocate their
2118 ENGINEs rather than declaring them statically. Apart from this being
2119 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
2120 this also allows the implementations to compile without using the
2121 internal engine_int.h header.
2124 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
2125 'const' value. Any code that should be able to modify a RAND_METHOD
2126 should already have non-const pointers to it (ie. they should only
2127 modify their own ones).
2130 *) Made a variety of little tweaks to the ENGINE code.
2131 - "atalla" and "ubsec" string definitions were moved from header files
2132 to C code. "nuron" string definitions were placed in variables
2133 rather than hard-coded - allowing parameterisation of these values
2134 later on via ctrl() commands.
2135 - Removed unused "#if 0"'d code.
2136 - Fixed engine list iteration code so it uses ENGINE_free() to release
2137 structural references.
2138 - Constified the RAND_METHOD element of ENGINE structures.
2139 - Constified various get/set functions as appropriate and added
2140 missing functions (including a catch-all ENGINE_cpy that duplicates
2141 all ENGINE values onto a new ENGINE except reference counts/state).
2142 - Removed NULL parameter checks in get/set functions. Setting a method
2143 or function to NULL is a way of cancelling out a previously set
2144 value. Passing a NULL ENGINE parameter is just plain stupid anyway
2145 and doesn't justify the extra error symbols and code.
2146 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
2147 flags from engine_int.h to engine.h.
2148 - Changed prototypes for ENGINE handler functions (init(), finish(),
2149 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
2152 *) Implement binary inversion algorithm for BN_mod_inverse in addition
2153 to the algorithm using long division. The binary algorithm can be
2154 used only if the modulus is odd. On 32-bit systems, it is faster
2155 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
2156 roughly 5-15% for 256-bit moduli), so we use it only for moduli
2157 up to 450 bits. In 64-bit environments, the binary algorithm
2158 appears to be advantageous for much longer moduli; here we use it
2159 for moduli up to 2048 bits.
2162 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
2163 could not support the combine flag in choice fields.
2166 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
2167 extensions from a certificate request to the certificate.
2170 *) Allow multiple 'certopt' and 'nameopt' options to be separated
2171 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
2172 file: this allows the display of the certificate about to be
2173 signed to be customised, to allow certain fields to be included
2174 or excluded and extension details. The old system didn't display
2175 multicharacter strings properly, omitted fields not in the policy
2176 and couldn't display additional details such as extensions.
2179 *) Function EC_POINTs_mul for multiple scalar multiplication
2180 of an arbitrary number of elliptic curve points
2181 \sum scalars[i]*points[i],
2182 optionally including the generator defined for the EC_GROUP:
2183 scalar*generator + \sum scalars[i]*points[i].
2185 EC_POINT_mul is a simple wrapper function for the typical case
2186 that the point list has just one item (besides the optional
2190 *) First EC_METHODs for curves over GF(p):
2192 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
2193 operations and provides various method functions that can also
2194 operate with faster implementations of modular arithmetic.
2196 EC_GFp_mont_method() reuses most functions that are part of
2197 EC_GFp_simple_method, but uses Montgomery arithmetic.
2199 [Bodo Moeller; point addition and point doubling
2200 implementation directly derived from source code provided by
2201 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
2203 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
2204 crypto/ec/ec_lib.c):
2206 Curves are EC_GROUP objects (with an optional group generator)
2207 based on EC_METHODs that are built into the library.
2209 Points are EC_POINT objects based on EC_GROUP objects.
2211 Most of the framework would be able to handle curves over arbitrary
2212 finite fields, but as there are no obvious types for fields other
2213 than GF(p), some functions are limited to that for now.
2216 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
2217 that the file contains a complete HTTP response.
2220 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
2221 change the def and num file printf format specifier from "%-40sXXX"
2222 to "%-39s XXX". The latter will always guarantee a space after the
2223 field while the former will cause them to run together if the field
2224 is 40 of more characters long.
2227 *) Constify the cipher and digest 'method' functions and structures
2228 and modify related functions to take constant EVP_MD and EVP_CIPHER
2232 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
2233 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
2236 *) Modify EVP_Digest*() routines so they now return values. Although the
2237 internal software routines can never fail additional hardware versions
2241 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
2243 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
2244 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
2247 ERR_R_NESTED_ASN1_ERROR
2249 ERR_R_MISSING_ASN1_EOS
2250 were 4 .. 9, conflicting with
2251 ERR_LIB_RSA (= ERR_R_RSA_LIB)
2253 ERR_LIB_PEM (= ERR_R_PEM_LIB).
2254 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
2256 Add new error code 'ERR_R_INTERNAL_ERROR'.
2259 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
2263 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
2264 sets the subject name for a new request or supersedes the
2265 subject name in a given request. Formats that can be parsed are
2266 'CN=Some Name, OU=myOU, C=IT'
2268 'CN=Some Name/OU=myOU/C=IT'.
2270 Add options '-batch' and '-verbose' to 'openssl req'.
2271 [Massimiliano Pala <madwolf@hackmasters.net>]
2273 *) Introduce the possibility to access global variables through
2274 functions on platform were that's the best way to handle exporting
2275 global variables in shared libraries. To enable this functionality,
2276 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
2277 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
2278 is normally done by Configure or something similar).
2280 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
2281 in the source file (foo.c) like this:
2283 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
2284 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
2286 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
2287 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
2289 OPENSSL_DECLARE_GLOBAL(int,foo);
2290 #define foo OPENSSL_GLOBAL_REF(foo)
2291 OPENSSL_DECLARE_GLOBAL(double,bar);
2292 #define bar OPENSSL_GLOBAL_REF(bar)
2294 The #defines are very important, and therefore so is including the
2295 header file everywhere where the defined globals are used.
2297 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
2298 of ASN.1 items, but that structure is a bit different.
2300 The largest change is in util/mkdef.pl which has been enhanced with
2301 better and easier to understand logic to choose which symbols should
2302 go into the Windows .def files as well as a number of fixes and code
2303 cleanup (among others, algorithm keywords are now sorted
2304 lexicographically to avoid constant rewrites).
2307 *) In BN_div() keep a copy of the sign of 'num' before writing the
2308 result to 'rm' because if rm==num the value will be overwritten
2309 and produce the wrong result if 'num' is negative: this caused
2310 problems with BN_mod() and BN_nnmod().
2313 *) Function OCSP_request_verify(). This checks the signature on an
2314 OCSP request and verifies the signer certificate. The signer
2315 certificate is just checked for a generic purpose and OCSP request
2319 *) Add OCSP_check_validity() function to check the validity of OCSP
2320 responses. OCSP responses are prepared in real time and may only
2321 be a few seconds old. Simply checking that the current time lies
2322 between thisUpdate and nextUpdate max reject otherwise valid responses
2323 caused by either OCSP responder or client clock inaccuracy. Instead
2324 we allow thisUpdate and nextUpdate to fall within a certain period of
2325 the current time. The age of the response can also optionally be
2326 checked. Two new options -validity_period and -status_age added to
2330 *) If signature or public key algorithm is unrecognized print out its
2331 OID rather that just UNKNOWN.
2334 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
2335 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
2336 ID to be generated from the issuer certificate alone which can then be
2337 passed to OCSP_id_issuer_cmp().
2340 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
2341 ASN1 modules to export functions returning ASN1_ITEM pointers
2342 instead of the ASN1_ITEM structures themselves. This adds several
2343 new macros which allow the underlying ASN1 function/structure to
2344 be accessed transparently. As a result code should not use ASN1_ITEM
2345 references directly (such as &X509_it) but instead use the relevant
2346 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
2347 use of the new ASN1 code on platforms where exporting structures
2348 is problematical (for example in shared libraries) but exporting
2349 functions returning pointers to structures is not.
2352 *) Add support for overriding the generation of SSL/TLS session IDs.
2353 These callbacks can be registered either in an SSL_CTX or per SSL.
2354 The purpose of this is to allow applications to control, if they wish,
2355 the arbitrary values chosen for use as session IDs, particularly as it
2356 can be useful for session caching in multiple-server environments. A
2357 command-line switch for testing this (and any client code that wishes
2358 to use such a feature) has been added to "s_server".
2359 [Geoff Thorpe, Lutz Jaenicke]
2361 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
2362 of the form '#if defined(...) || defined(...) || ...' and
2363 '#if !defined(...) && !defined(...) && ...'. This also avoids
2364 the growing number of special cases it was previously handling.
2367 *) Make all configuration macros available for application by making
2368 sure they are available in opensslconf.h, by giving them names starting
2369 with "OPENSSL_" to avoid conflicts with other packages and by making
2370 sure e_os2.h will cover all platform-specific cases together with
2372 Additionally, it is now possible to define configuration/platform-
2373 specific names (called "system identities"). In the C code, these
2374 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
2375 macro with the name beginning with "OPENSSL_SYS_", which is determined
2376 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
2380 *) New option -set_serial to 'req' and 'x509' this allows the serial
2381 number to use to be specified on the command line. Previously self
2382 signed certificates were hard coded with serial number 0 and the
2383 CA options of 'x509' had to use a serial number in a file which was
2387 *) New options to 'ca' utility to support V2 CRL entry extensions.
2388 Currently CRL reason, invalidity date and hold instruction are
2389 supported. Add new CRL extensions to V3 code and some new objects.
2392 *) New function EVP_CIPHER_CTX_set_padding() this is used to
2393 disable standard block padding (aka PKCS#5 padding) in the EVP
2394 API, which was previously mandatory. This means that the data is
2395 not padded in any way and so the total length much be a multiple
2396 of the block size, otherwise an error occurs.
2399 *) Initial (incomplete) OCSP SSL support.
2402 *) New function OCSP_parse_url(). This splits up a URL into its host,
2403 port and path components: primarily to parse OCSP URLs. New -url
2404 option to ocsp utility.
2407 *) New nonce behavior. The return value of OCSP_check_nonce() now
2408 reflects the various checks performed. Applications can decide
2409 whether to tolerate certain situations such as an absent nonce
2410 in a response when one was present in a request: the ocsp application
2411 just prints out a warning. New function OCSP_add1_basic_nonce()
2412 this is to allow responders to include a nonce in a response even if
2413 the request is nonce-less.
2416 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
2417 skipped when using openssl x509 multiple times on a single input file,
2418 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
2421 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
2422 set string type: to handle setting ASN1_TIME structures. Fix ca
2423 utility to correctly initialize revocation date of CRLs.
2426 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
2427 the clients preferred ciphersuites and rather use its own preferences.
2428 Should help to work around M$ SGC (Server Gated Cryptography) bug in
2429 Internet Explorer by ensuring unchanged hash method during stepup.
2430 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
2433 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
2434 to aes and add a new 'exist' option to print out symbols that don't
2438 *) Additional options to ocsp utility to allow flags to be set and
2439 additional certificates supplied.
2442 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
2443 OCSP client a number of certificate to only verify the response
2447 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
2448 handle the new API. Currently only ECB, CBC modes supported. Add new
2451 Add TLS AES ciphersuites as described in RFC3268, "Advanced
2452 Encryption Standard (AES) Ciphersuites for Transport Layer
2453 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
2454 not enabled by default and were not part of the "ALL" ciphersuite
2455 alias because they were not yet official; they could be
2456 explicitly requested by specifying the "AESdraft" ciphersuite
2457 group alias. In the final release of OpenSSL 0.9.7, the group
2458 alias is called "AES" and is part of "ALL".)
2459 [Ben Laurie, Steve Henson, Bodo Moeller]
2461 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
2462 request to response.
2465 *) Functions for OCSP responders. OCSP_request_onereq_count(),
2466 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
2467 extract information from a certificate request. OCSP_response_create()
2468 creates a response and optionally adds a basic response structure.
2469 OCSP_basic_add1_status() adds a complete single response to a basic
2470 response and returns the OCSP_SINGLERESP structure just added (to allow
2471 extensions to be included for example). OCSP_basic_add1_cert() adds a
2472 certificate to a basic response and OCSP_basic_sign() signs a basic
2473 response with various flags. New helper functions ASN1_TIME_check()
2474 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
2475 (converts ASN1_TIME to GeneralizedTime).
2478 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
2479 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
2480 structure from a certificate. X509_pubkey_digest() digests the public_key
2481 contents: this is used in various key identifiers.
2484 *) Make sk_sort() tolerate a NULL argument.
2485 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
2487 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
2488 passed by the function are trusted implicitly. If any of them signed the
2489 response then it is assumed to be valid and is not verified.
2492 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
2493 to data. This was previously part of the PKCS7 ASN1 code. This
2494 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
2495 [Steve Henson, reported by Kenneth R. Robinette
2496 <support@securenetterm.com>]
2498 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
2499 routines: without these tracing memory leaks is very painful.
2500 Fix leaks in PKCS12 and PKCS7 routines.
2503 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
2504 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
2505 effectively meant GeneralizedTime would never be used. Now it
2506 is initialised to -1 but X509_time_adj() now has to check the value
2507 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
2508 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
2509 [Steve Henson, reported by Kenneth R. Robinette
2510 <support@securenetterm.com>]
2512 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
2513 result in a zero length in the ASN1_INTEGER structure which was
2514 not consistent with the structure when d2i_ASN1_INTEGER() was used
2515 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
2516 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
2517 where it did not print out a minus for negative ASN1_INTEGER.
2520 *) Add summary printout to ocsp utility. The various functions which
2521 convert status values to strings have been renamed to:
2522 OCSP_response_status_str(), OCSP_cert_status_str() and
2523 OCSP_crl_reason_str() and are no longer static. New options
2524 to verify nonce values and to disable verification. OCSP response
2525 printout format cleaned up.
2528 *) Add additional OCSP certificate checks. These are those specified
2529 in RFC2560. This consists of two separate checks: the CA of the
2530 certificate being checked must either be the OCSP signer certificate
2531 or the issuer of the OCSP signer certificate. In the latter case the
2532 OCSP signer certificate must contain the OCSP signing extended key
2533 usage. This check is performed by attempting to match the OCSP
2534 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
2535 in the OCSP_CERTID structures of the response.
2538 *) Initial OCSP certificate verification added to OCSP_basic_verify()
2539 and related routines. This uses the standard OpenSSL certificate
2540 verify routines to perform initial checks (just CA validity) and
2541 to obtain the certificate chain. Then additional checks will be
2542 performed on the chain. Currently the root CA is checked to see
2543 if it is explicitly trusted for OCSP signing. This is used to set
2544 a root CA as a global signing root: that is any certificate that
2545 chains to that CA is an acceptable OCSP signing certificate.
2548 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
2549 extensions from a separate configuration file.
2550 As when reading extensions from the main configuration file,
2551 the '-extensions ...' option may be used for specifying the
2553 [Massimiliano Pala <madwolf@comune.modena.it>]
2555 *) New OCSP utility. Allows OCSP requests to be generated or
2556 read. The request can be sent to a responder and the output
2557 parsed, outputed or printed in text form. Not complete yet:
2558 still needs to check the OCSP response validity.
2561 *) New subcommands for 'openssl ca':
2562 'openssl ca -status <serial>' prints the status of the cert with
2563 the given serial number (according to the index file).
2564 'openssl ca -updatedb' updates the expiry status of certificates
2566 [Massimiliano Pala <madwolf@comune.modena.it>]
2568 *) New '-newreq-nodes' command option to CA.pl. This is like
2569 '-newreq', but calls 'openssl req' with the '-nodes' option
2570 so that the resulting key is not encrypted.
2571 [Damien Miller <djm@mindrot.org>]
2573 *) New configuration for the GNU Hurd.
2574 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
2576 *) Initial code to implement OCSP basic response verify. This
2577 is currently incomplete. Currently just finds the signer's
2578 certificate and verifies the signature on the response.
2581 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
2582 value of OPENSSLDIR. This is available via the new '-d' option
2583 to 'openssl version', and is also included in 'openssl version -a'.
2586 *) Allowing defining memory allocation callbacks that will be given
2587 file name and line number information in additional arguments
2588 (a const char* and an int). The basic functionality remains, as
2589 well as the original possibility to just replace malloc(),
2590 realloc() and free() by functions that do not know about these
2591 additional arguments. To register and find out the current
2592 settings for extended allocation functions, the following
2593 functions are provided:
2595 CRYPTO_set_mem_ex_functions
2596 CRYPTO_set_locked_mem_ex_functions
2597 CRYPTO_get_mem_ex_functions
2598 CRYPTO_get_locked_mem_ex_functions
2600 These work the same way as CRYPTO_set_mem_functions and friends.
2601 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
2602 extended allocation function is enabled.
2603 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
2604 a conventional allocation function is enabled.
2605 [Richard Levitte, Bodo Moeller]
2607 *) Finish off removing the remaining LHASH function pointer casts.
2608 There should no longer be any prototype-casting required when using
2609 the LHASH abstraction, and any casts that remain are "bugs". See
2610 the callback types and macros at the head of lhash.h for details
2611 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
2614 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
2615 If /dev/[u]random devices are not available or do not return enough
2616 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
2618 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
2619 /etc/entropy will be queried once each in this sequence, quering stops
2620 when enough entropy was collected without querying more sockets.
2623 *) Change the Unix RAND_poll() variant to be able to poll several
2624 random devices, as specified by DEVRANDOM, until a sufficient amount
2625 of data has been collected. We spend at most 10 ms on each file
2626 (select timeout) and read in non-blocking mode. DEVRANDOM now
2627 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
2628 (previously it was just the string "/dev/urandom"), so on typical
2629 platforms the 10 ms delay will never occur.
2630 Also separate out the Unix variant to its own file, rand_unix.c.
2631 For VMS, there's a currently-empty rand_vms.c.
2634 *) Move OCSP client related routines to ocsp_cl.c. These
2635 provide utility functions which an application needing
2636 to issue a request to an OCSP responder and analyse the
2637 response will typically need: as opposed to those which an
2638 OCSP responder itself would need which will be added later.
2640 OCSP_request_sign() signs an OCSP request with an API similar
2641 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
2642 response. OCSP_response_get1_basic() extracts basic response
2643 from response. OCSP_resp_find_status(): finds and extracts status
2644 information from an OCSP_CERTID structure (which will be created
2645 when the request structure is built). These are built from lower
2646 level functions which work on OCSP_SINGLERESP structures but
2647 wont normally be used unless the application wishes to examine
2648 extensions in the OCSP response for example.
2650 Replace nonce routines with a pair of functions.
2651 OCSP_request_add1_nonce() adds a nonce value and optionally
2652 generates a random value. OCSP_check_nonce() checks the
2653 validity of the nonce in an OCSP response.
2656 *) Change function OCSP_request_add() to OCSP_request_add0_id().
2657 This doesn't copy the supplied OCSP_CERTID and avoids the
2658 need to free up the newly created id. Change return type
2659 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
2660 This can then be used to add extensions to the request.
2661 Deleted OCSP_request_new(), since most of its functionality
2662 is now in OCSP_REQUEST_new() (and the case insensitive name
2663 clash) apart from the ability to set the request name which
2664 will be added elsewhere.
2667 *) Update OCSP API. Remove obsolete extensions argument from
2668 various functions. Extensions are now handled using the new
2669 OCSP extension code. New simple OCSP HTTP function which
2670 can be used to send requests and parse the response.
2673 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
2674 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
2675 uses the special reorder version of SET OF to sort the attributes
2676 and reorder them to match the encoded order. This resolves a long
2677 standing problem: a verify on a PKCS7 structure just after signing
2678 it used to fail because the attribute order did not match the
2679 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
2680 it uses the received order. This is necessary to tolerate some broken
2681 software that does not order SET OF. This is handled by encoding
2682 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
2683 to produce the required SET OF.
2686 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
2687 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
2688 files to get correct declarations of the ASN.1 item variables.
2691 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
2692 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
2693 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
2694 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
2695 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
2696 ASN1_ITEM and no wrapper functions.
2699 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
2700 replace the old function pointer based I/O routines. Change most of
2701 the *_d2i_bio() and *_d2i_fp() functions to use these.
2704 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
2705 lines, recognice more "algorithms" that can be deselected, and make
2706 it complain about algorithm deselection that isn't recognised.
2709 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
2710 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
2711 to use new functions. Add NO_ASN1_OLD which can be set to remove
2712 some old style ASN1 functions: this can be used to determine if old
2713 code will still work when these eventually go away.
2716 *) New extension functions for OCSP structures, these follow the
2717 same conventions as certificates and CRLs.
2720 *) New function X509V3_add1_i2d(). This automatically encodes and
2721 adds an extension. Its behaviour can be customised with various
2722 flags to append, replace or delete. Various wrappers added for
2723 certifcates and CRLs.
2726 *) Fix to avoid calling the underlying ASN1 print routine when
2727 an extension cannot be parsed. Correct a typo in the
2728 OCSP_SERVICELOC extension. Tidy up print OCSP format.
2731 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
2732 entries for variables.
2735 *) Add functionality to apps/openssl.c for detecting locking
2736 problems: As the program is single-threaded, all we have
2737 to do is register a locking callback using an array for
2738 storing which locks are currently held by the program.
2741 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
2742 SSL_get_ex_data_X509_STORE_idx(), which is used in
2743 ssl_verify_cert_chain() and thus can be called at any time
2744 during TLS/SSL handshakes so that thread-safety is essential.
2745 Unfortunately, the ex_data design is not at all suited
2746 for multi-threaded use, so it probably should be abolished.
2749 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
2750 [Broadcom, tweaked and integrated by Geoff Thorpe]
2752 *) Move common extension printing code to new function
2753 X509V3_print_extensions(). Reorganise OCSP print routines and
2754 implement some needed OCSP ASN1 functions. Add OCSP extensions.
2757 *) New function X509_signature_print() to remove duplication in some
2761 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
2762 set (this was treated exactly the same as SET OF previously). This
2763 is used to reorder the STACK representing the structure to match the
2764 encoding. This will be used to get round a problem where a PKCS7
2765 structure which was signed could not be verified because the STACK
2766 order did not reflect the encoded order.
2769 *) Reimplement the OCSP ASN1 module using the new code.
2772 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
2773 for its ASN1 operations. The old style function pointers still exist
2774 for now but they will eventually go away.
2777 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
2778 completely replaces the old ASN1 functionality with a table driven
2779 encoder and decoder which interprets an ASN1_ITEM structure describing
2780 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
2781 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
2782 has also been converted to the new form.
2785 *) Change BN_mod_exp_recp so that negative moduli are tolerated
2786 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
2787 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
2788 for negative moduli.
2791 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
2792 of not touching the result's sign bit.
2795 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
2799 *) Changed the LHASH code to use prototypes for callbacks, and created
2800 macros to declare and implement thin (optionally static) functions
2801 that provide type-safety and avoid function pointer casting for the
2802 type-specific callbacks.
2805 *) Added Kerberos Cipher Suites to be used with TLS, as written in
2807 [Veers Staats <staatsvr@asc.hpc.mil>,
2808 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
2810 *) Reformat the FAQ so the different questions and answers can be divided
2811 in sections depending on the subject.
2814 *) Have the zlib compression code load ZLIB.DLL dynamically under
2818 *) New function BN_mod_sqrt for computing square roots modulo a prime
2819 (using the probabilistic Tonelli-Shanks algorithm unless
2820 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
2821 be handled deterministically).
2822 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
2824 *) Make BN_mod_inverse faster by explicitly handling small quotients
2825 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
2826 512 bits], about 30% for larger ones [1024 or 2048 bits].)
2829 *) New function BN_kronecker.
2832 *) Fix BN_gcd so that it works on negative inputs; the result is
2833 positive unless both parameters are zero.
2834 Previously something reasonably close to an infinite loop was
2835 possible because numbers could be growing instead of shrinking
2836 in the implementation of Euclid's algorithm.
2839 *) Fix BN_is_word() and BN_is_one() macros to take into account the
2840 sign of the number in question.
2842 Fix BN_is_word(a,w) to work correctly for w == 0.
2844 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
2845 because its test if the absolute value of 'a' equals 'w'.
2846 Note that BN_abs_is_word does *not* handle w == 0 reliably;
2847 it exists mostly for use in the implementations of BN_is_zero(),
2848 BN_is_one(), and BN_is_word().
2851 *) New function BN_swap.
2854 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
2855 the exponentiation functions are more likely to produce reasonable
2856 results on negative inputs.
2859 *) Change BN_mod_mul so that the result is always non-negative.
2860 Previously, it could be negative if one of the factors was negative;
2861 I don't think anyone really wanted that behaviour.
2864 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
2865 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
2866 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
2867 and add new functions:
2876 BN_mod_lshift1_quick
2880 These functions always generate non-negative results.
2882 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
2883 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
2885 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
2886 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
2887 be reduced modulo m.
2888 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
2891 The following entry accidentily appeared in the CHANGES file
2892 distributed with OpenSSL 0.9.7. The modifications described in
2893 it do *not* apply to OpenSSL 0.9.7.
2895 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
2896 was actually never needed) and in BN_mul(). The removal in BN_mul()
2897 required a small change in bn_mul_part_recursive() and the addition
2898 of the functions bn_cmp_part_words(), bn_sub_part_words() and
2899 bn_add_part_words(), which do the same thing as bn_cmp_words(),
2900 bn_sub_words() and bn_add_words() except they take arrays with
2905 *) In 'openssl passwd', verify passwords read from the terminal
2906 unless the '-salt' option is used (which usually means that
2907 verification would just waste user's time since the resulting
2908 hash is going to be compared with some given password hash)
2909 or the new '-noverify' option is used.
2911 This is an incompatible change, but it does not affect
2912 non-interactive use of 'openssl passwd' (passwords on the command
2913 line, '-stdin' option, '-in ...' option) and thus should not
2917 *) Remove all references to RSAref, since there's no more need for it.
2920 *) Make DSO load along a path given through an environment variable
2921 (SHLIB_PATH) with shl_load().
2924 *) Constify the ENGINE code as a result of BIGNUM constification.
2925 Also constify the RSA code and most things related to it. In a
2926 few places, most notable in the depth of the ASN.1 code, ugly
2927 casts back to non-const were required (to be solved at a later
2931 *) Make it so the openssl application has all engines loaded by default.
2934 *) Constify the BIGNUM routines a little more.
2937 *) Add the following functions:
2939 ENGINE_load_cswift()
2941 ENGINE_load_atalla()
2943 ENGINE_load_builtin_engines()
2945 That way, an application can itself choose if external engines that
2946 are built-in in OpenSSL shall ever be used or not. The benefit is
2947 that applications won't have to be linked with libdl or other dso
2948 libraries unless it's really needed.
2950 Changed 'openssl engine' to load all engines on demand.
2951 Changed the engine header files to avoid the duplication of some
2952 declarations (they differed!).
2955 *) 'openssl engine' can now list capabilities.
2958 *) Better error reporting in 'openssl engine'.
2961 *) Never call load_dh_param(NULL) in s_server.
2964 *) Add engine application. It can currently list engines by name and
2965 identity, and test if they are actually available.
2968 *) Improve RPM specification file by forcing symbolic linking and making
2969 sure the installed documentation is also owned by root.root.
2970 [Damien Miller <djm@mindrot.org>]
2972 *) Give the OpenSSL applications more possibilities to make use of
2973 keys (public as well as private) handled by engines.
2976 *) Add OCSP code that comes from CertCo.
2979 *) Add VMS support for the Rijndael code.
2982 *) Added untested support for Nuron crypto accelerator.
2985 *) Add support for external cryptographic devices. This code was
2986 previously distributed separately as the "engine" branch.
2987 [Geoff Thorpe, Richard Levitte]
2989 *) Rework the filename-translation in the DSO code. It is now possible to
2990 have far greater control over how a "name" is turned into a filename
2991 depending on the operating environment and any oddities about the
2992 different shared library filenames on each system.
2995 *) Support threads on FreeBSD-elf in Configure.
2998 *) Fix for SHA1 assembly problem with MASM: it produces
2999 warnings about corrupt line number information when assembling
3000 with debugging information. This is caused by the overlapping
3002 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
3005 NCONF_get_number() has no error checking at all. As a replacement,
3006 NCONF_get_number_e() is defined (_e for "error checking") and is
3007 promoted strongly. The old NCONF_get_number is kept around for
3008 binary backward compatibility.
3009 Make it possible for methods to load from something other than a BIO,
3010 by providing a function pointer that is given a name instead of a BIO.
3011 For example, this could be used to load configuration data from an
3015 *) Fix for non blocking accept BIOs. Added new I/O special reason
3016 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
3017 with non blocking I/O was not possible because no retry code was
3018 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
3022 *) Added the beginnings of Rijndael support.
3025 *) Fix for bug in DirectoryString mask setting. Add support for
3026 X509_NAME_print_ex() in 'req' and X509_print_ex() function
3027 to allow certificate printing to more controllable, additional
3028 'certopt' option to 'x509' to allow new printing options to be
3032 *) Clean old EAY MD5 hack from e_os.h.
3035 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
3037 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3038 by using the Codenomicon TLS Test Tool (CAN-2004-0079)
3039 [Joe Orton, Steve Henson]
3041 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
3043 *) Fix additional bug revealed by the NISCC test suite:
3045 Stop bug triggering large recursion when presented with
3046 certain ASN.1 tags (CAN-2003-0851)
3049 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
3051 *) Fix various bugs revealed by running the NISCC test suite:
3053 Stop out of bounds reads in the ASN1 code when presented with
3054 invalid tags (CAN-2003-0543 and CAN-2003-0544).
3056 If verify callback ignores invalid public key errors don't try to check
3057 certificate signature with the NULL public key.
3061 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3062 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3066 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3067 extra data after the compression methods not only for TLS 1.0
3068 but also for SSL 3.0 (as required by the specification).
3069 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3071 *) Change X509_certificate_type() to mark the key as exported/exportable
3072 when it's 512 *bits* long, not 512 bytes.
3075 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
3077 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3078 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3079 a protocol version number mismatch like a decryption error
3080 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3083 *) Turn on RSA blinding by default in the default implementation
3084 to avoid a timing attack. Applications that don't want it can call
3085 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3086 They would be ill-advised to do so in most cases.
3087 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3089 *) Change RSA blinding code so that it works when the PRNG is not
3090 seeded (in this case, the secret RSA exponent is abused as
3091 an unpredictable seed -- if it is not unpredictable, there
3092 is no point in blinding anyway). Make RSA blinding thread-safe
3093 by remembering the creator's thread ID in rsa->blinding and
3094 having all other threads use local one-time blinding factors
3095 (this requires more computation than sharing rsa->blinding, but
3096 avoids excessive locking; and if an RSA object is not shared
3097 between threads, blinding will still be very fast).
3100 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
3102 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3103 via timing by performing a MAC computation even if incorrrect
3104 block cipher padding has been found. This is a countermeasure
3105 against active attacks where the attacker has to distinguish
3106 between bad padding and a MAC verification error. (CAN-2003-0078)
3108 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3109 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3110 Martin Vuagnoux (EPFL, Ilion)]
3112 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
3114 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
3115 memory from it's contents. This is done with a counter that will
3116 place alternating values in each byte. This can be used to solve
3117 two issues: 1) the removal of calls to memset() by highly optimizing
3118 compilers, and 2) cleansing with other values than 0, since those can
3119 be read through on certain media, for example a swap space on disk.
3122 *) Bugfix: client side session caching did not work with external caching,
3123 because the session->cipher setting was not restored when reloading
3124 from the external cache. This problem was masked, when
3125 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
3126 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
3129 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
3130 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
3131 [Zeev Lieber <zeev-l@yahoo.com>]
3133 *) Undo an undocumented change introduced in 0.9.6e which caused
3134 repeated calls to OpenSSL_add_all_ciphers() and
3135 OpenSSL_add_all_digests() to be ignored, even after calling
3139 *) Change the default configuration reader to deal with last line not
3140 being properly terminated.
3143 *) Change X509_NAME_cmp() so it applies the special rules on handling
3144 DN values that are of type PrintableString, as well as RDNs of type
3145 emailAddress where the value has the type ia5String.
3146 [stefank@valicert.com via Richard Levitte]
3148 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
3149 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
3150 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
3151 the bitwise-OR of the two for use by the majority of applications
3152 wanting this behaviour, and update the docs. The documented
3153 behaviour and actual behaviour were inconsistent and had been
3154 changing anyway, so this is more a bug-fix than a behavioural
3156 [Geoff Thorpe, diagnosed by Nadav Har'El]
3158 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
3159 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
3162 *) Fix initialization code race conditions in
3163 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
3164 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
3165 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
3166 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
3167 ssl2_get_cipher_by_char(),
3168 ssl3_get_cipher_by_char().
3169 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
3171 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
3172 the cached sessions are flushed, as the remove_cb() might use ex_data
3173 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
3174 (see [openssl.org #212]).
3175 [Geoff Thorpe, Lutz Jaenicke]
3177 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
3178 length, instead of the encoding length to d2i_ASN1_OBJECT.
3181 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
3183 *) [In 0.9.6g-engine release:]
3184 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
3185 [Lynn Gazis <lgazis@rainbow.com>]
3187 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
3189 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
3190 and get fix the header length calculation.
3191 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
3192 Alon Kantor <alonk@checkpoint.com> (and others),
3195 *) Use proper error handling instead of 'assertions' in buffer
3196 overflow checks added in 0.9.6e. This prevents DoS (the
3197 assertions could call abort()).
3198 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
3200 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
3202 *) Add various sanity checks to asn1_get_length() to reject
3203 the ASN1 length bytes if they exceed sizeof(long), will appear
3204 negative or the content length exceeds the length of the
3206 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3208 *) Fix cipher selection routines: ciphers without encryption had no flags
3209 for the cipher strength set and where therefore not handled correctly
3210 by the selection routines (PR #130).
3213 *) Fix EVP_dsa_sha macro.
3217 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
3218 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
3219 that was added in OpenSSL 0.9.6d.
3221 As the countermeasure turned out to be incompatible with some
3222 broken SSL implementations, the new option is part of SSL_OP_ALL.
3223 SSL_OP_ALL is usually employed when compatibility with weird SSL
3224 implementations is desired (e.g. '-bugs' option to 's_client' and
3225 's_server'), so the new option is automatically set in many
3229 *) Changes in security patch:
3231 Changes marked "(CHATS)" were sponsored by the Defense Advanced
3232 Research Projects Agency (DARPA) and Air Force Research Laboratory,
3233 Air Force Materiel Command, USAF, under agreement number
3236 *) Add various sanity checks to asn1_get_length() to reject
3237 the ASN1 length bytes if they exceed sizeof(long), will appear
3238 negative or the content length exceeds the length of the
3239 supplied buffer. (CAN-2002-0659)
3240 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3242 *) Assertions for various potential buffer overflows, not known to
3244 [Ben Laurie (CHATS)]
3246 *) Various temporary buffers to hold ASCII versions of integers were
3247 too small for 64 bit platforms. (CAN-2002-0655)
3248 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
3250 *) Remote buffer overflow in SSL3 protocol - an attacker could
3251 supply an oversized session ID to a client. (CAN-2002-0656)
3252 [Ben Laurie (CHATS)]
3254 *) Remote buffer overflow in SSL2 protocol - an attacker could
3255 supply an oversized client master key. (CAN-2002-0656)
3256 [Ben Laurie (CHATS)]
3258 Changes between 0.9.6c and 0.9.6d [9 May 2002]
3260 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
3261 encoded as NULL) with id-dsa-with-sha1.
3262 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
3264 *) Check various X509_...() return values in apps/req.c.
3265 [Nils Larsch <nla@trustcenter.de>]
3267 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
3268 an end-of-file condition would erronously be flagged, when the CRLF
3269 was just at the end of a processed block. The bug was discovered when
3270 processing data through a buffering memory BIO handing the data to a
3271 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
3272 <ptsekov@syntrex.com> and Nedelcho Stanev.
3275 *) Implement a countermeasure against a vulnerability recently found
3276 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
3277 before application data chunks to avoid the use of known IVs
3278 with data potentially chosen by the attacker.
3281 *) Fix length checks in ssl3_get_client_hello().
3284 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
3285 to prevent ssl3_read_internal() from incorrectly assuming that
3286 ssl3_read_bytes() found application data while handshake
3287 processing was enabled when in fact s->s3->in_read_app_data was
3288 merely automatically cleared during the initial handshake.
3289 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
3291 *) Fix object definitions for Private and Enterprise: they were not
3292 recognized in their shortname (=lowercase) representation. Extend
3293 obj_dat.pl to issue an error when using undefined keywords instead
3294 of silently ignoring the problem (Svenning Sorensen
3295 <sss@sss.dnsalias.net>).
3298 *) Fix DH_generate_parameters() so that it works for 'non-standard'
3299 generators, i.e. generators other than 2 and 5. (Previously, the
3300 code did not properly initialise the 'add' and 'rem' values to
3301 BN_generate_prime().)
3303 In the new general case, we do not insist that 'generator' is
3304 actually a primitive root: This requirement is rather pointless;
3305 a generator of the order-q subgroup is just as good, if not
3309 *) Map new X509 verification errors to alerts. Discovered and submitted by
3310 Tom Wu <tom@arcot.com>.
3313 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
3314 returning non-zero before the data has been completely received
3315 when using non-blocking I/O.
3316 [Bodo Moeller; problem pointed out by John Hughes]
3318 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
3319 [Ben Laurie, Lutz Jaenicke]
3321 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
3322 Yoram Zahavi <YoramZ@gilian.com>).
3325 *) Add information about CygWin 1.3 and on, and preserve proper
3326 configuration for the versions before that.
3327 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
3329 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
3330 check whether we deal with a copy of a session and do not delete from
3331 the cache in this case. Problem reported by "Izhar Shoshani Levi"
3332 <izhar@checkpoint.com>.
3335 *) Do not store session data into the internal session cache, if it
3336 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
3337 flag is set). Proposed by Aslam <aslam@funk.com>.
3340 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
3344 *) [In 0.9.6d-engine release:]
3345 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3346 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3348 *) Add the configuration target linux-s390x.
3349 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
3351 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
3352 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
3353 variable as an indication that a ClientHello message has been
3354 received. As the flag value will be lost between multiple
3355 invocations of ssl3_accept when using non-blocking I/O, the
3356 function may not be aware that a handshake has actually taken
3357 place, thus preventing a new session from being added to the
3360 To avoid this problem, we now set s->new_session to 2 instead of
3361 using a local variable.
3362 [Lutz Jaenicke, Bodo Moeller]
3364 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
3365 if the SSL_R_LENGTH_MISMATCH error is detected.
3366 [Geoff Thorpe, Bodo Moeller]
3368 *) New 'shared_ldflag' column in Configure platform table.
3371 *) Fix EVP_CIPHER_mode macro.
3372 ["Dan S. Camper" <dan@bti.net>]
3374 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
3375 type, we must throw them away by setting rr->length to 0.
3376 [D P Chang <dpc@qualys.com>]
3378 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
3380 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
3381 <Dominikus.Scherkl@biodata.com>. (The previous implementation
3382 worked incorrectly for those cases where range = 10..._2 and
3383 3*range is two bits longer than range.)
3386 *) Only add signing time to PKCS7 structures if it is not already
3390 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
3391 OBJ_ld_ce should be OBJ_id_ce.
3392 Also some ip-pda OIDs in crypto/objects/objects.txt were
3393 incorrect (cf. RFC 3039).
3394 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
3396 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
3397 returns early because it has nothing to do.
3398 [Andy Schneider <andy.schneider@bjss.co.uk>]
3400 *) [In 0.9.6c-engine release:]
3401 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
3402 [Andy Schneider <andy.schneider@bjss.co.uk>]
3404 *) [In 0.9.6c-engine release:]
3405 Add support for Cryptographic Appliance's keyserver technology.
3406 (Use engine 'keyclient')
3407 [Cryptographic Appliances and Geoff Thorpe]
3409 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
3410 is called via tools/c89.sh because arguments have to be
3411 rearranged (all '-L' options must appear before the first object
3413 [Richard Shapiro <rshapiro@abinitio.com>]
3415 *) [In 0.9.6c-engine release:]
3416 Add support for Broadcom crypto accelerator cards, backported
3418 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
3420 *) [In 0.9.6c-engine release:]
3421 Add support for SureWare crypto accelerator cards from
3422 Baltimore Technologies. (Use engine 'sureware')
3423 [Baltimore Technologies and Mark Cox]
3425 *) [In 0.9.6c-engine release:]
3426 Add support for crypto accelerator cards from Accelerated
3427 Encryption Processing, www.aep.ie. (Use engine 'aep')
3428 [AEP Inc. and Mark Cox]
3430 *) Add a configuration entry for gcc on UnixWare.
3431 [Gary Benson <gbenson@redhat.com>]
3433 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
3434 messages are stored in a single piece (fixed-length part and
3435 variable-length part combined) and fix various bugs found on the way.
3438 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
3439 instead. BIO_gethostbyname() does not know what timeouts are
3440 appropriate, so entries would stay in cache even when they have
3442 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
3444 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
3445 faced with a pathologically small ClientHello fragment that does
3446 not contain client_version: Instead of aborting with an error,
3447 simply choose the highest available protocol version (i.e.,
3448 TLS 1.0 unless it is disabled). In practice, ClientHello
3449 messages are never sent like this, but this change gives us
3450 strictly correct behaviour at least for TLS.
3453 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
3454 never resets s->method to s->ctx->method when called from within
3455 one of the SSL handshake functions.
3456 [Bodo Moeller; problem pointed out by Niko Baric]
3458 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
3459 (sent using the client's version number) if client_version is
3460 smaller than the protocol version in use. Also change
3461 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
3462 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
3463 the client will at least see that alert.
3466 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
3470 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
3471 client receives HelloRequest while in a handshake.
3472 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
3474 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
3475 should end in 'break', not 'goto end' which circuments various
3476 cleanups done in state SSL_ST_OK. But session related stuff
3477 must be disabled for SSL_ST_OK in the case that we just sent a
3480 Also avoid some overhead by not calling ssl_init_wbio_buffer()
3481 before just sending a HelloRequest.
3482 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
3484 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
3485 reveal whether illegal block cipher padding was found or a MAC
3486 verification error occured. (Neither SSLerr() codes nor alerts
3487 are directly visible to potential attackers, but the information
3488 may leak via logfiles.)
3490 Similar changes are not required for the SSL 2.0 implementation
3491 because the number of padding bytes is sent in clear for SSL 2.0,
3492 and the extra bytes are just ignored. However ssl/s2_pkt.c
3493 failed to verify that the purported number of padding bytes is in
3497 *) Add OpenUNIX-8 support including shared libraries
3498 (Boyd Lynn Gerber <gerberb@zenez.com>).
3501 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
3502 'wristwatch attack' using huge encoding parameters (cf.
3503 James H. Manger's CRYPTO 2001 paper). Note that the
3504 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
3505 encoding parameters and hence was not vulnerable.
3508 *) BN_sqr() bug fix.
3509 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
3511 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
3512 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
3513 followed by modular reduction.
3514 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
3516 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
3517 equivalent based on BN_pseudo_rand() instead of BN_rand().
3520 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
3521 This function was broken, as the check for a new client hello message
3522 to handle SGC did not allow these large messages.
3523 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
3526 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
3529 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
3530 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
3533 *) Rework the configuration and shared library support for Tru64 Unix.
3534 The configuration part makes use of modern compiler features and
3535 still retains old compiler behavior for those that run older versions
3536 of the OS. The shared library support part includes a variant that
3537 uses the RPATH feature, and is available through the special
3538 configuration target "alpha-cc-rpath", which will never be selected
3540 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
3542 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
3543 with the same message size as in ssl3_get_certificate_request().
3544 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
3545 messages might inadvertently be reject as too long.
3546 [Petr Lampa <lampa@fee.vutbr.cz>]
3548 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
3551 *) Modified SSL library such that the verify_callback that has been set
3552 specificly for an SSL object with SSL_set_verify() is actually being
3553 used. Before the change, a verify_callback set with this function was
3554 ignored and the verify_callback() set in the SSL_CTX at the time of
3555 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
3556 to allow the necessary settings.
3559 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
3560 explicitly to NULL, as at least on Solaris 8 this seems not always to be
3561 done automatically (in contradiction to the requirements of the C
3562 standard). This made problems when used from OpenSSH.
3565 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
3566 dh->length and always used
3568 BN_rand_range(priv_key, dh->p).
3570 BN_rand_range() is not necessary for Diffie-Hellman, and this
3571 specific range makes Diffie-Hellman unnecessarily inefficient if
3572 dh->length (recommended exponent length) is much smaller than the
3573 length of dh->p. We could use BN_rand_range() if the order of
3574 the subgroup was stored in the DH structure, but we only have
3579 BN_rand(priv_key, l, ...)
3581 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
3587 RSA_eay_public_encrypt
3588 RSA_eay_private_decrypt
3589 RSA_eay_private_encrypt (signing)
3590 RSA_eay_public_decrypt (signature verification)
3592 (default implementations for RSA_public_encrypt,
3593 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
3594 always reject numbers >= n.
3597 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
3598 to synchronize access to 'locking_thread'. This is necessary on
3599 systems where access to 'locking_thread' (an 'unsigned long'
3600 variable) is not atomic.
3603 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
3604 *before* setting the 'crypto_lock_rand' flag. The previous code had
3605 a race condition if 0 is a valid thread ID.
3606 [Travis Vitek <vitek@roguewave.com>]
3608 *) Add support for shared libraries under Irix.
3609 [Albert Chin-A-Young <china@thewrittenword.com>]
3611 *) Add configuration option to build on Linux on both big-endian and
3613 [Ralf Baechle <ralf@uni-koblenz.de>]
3615 *) Add the possibility to create shared libraries on HP-UX.
3618 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
3620 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
3621 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
3622 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
3623 PRNG state recovery was possible based on the output of
3624 one PRNG request appropriately sized to gain knowledge on
3625 'md' followed by enough consecutive 1-byte PRNG requests
3626 to traverse all of 'state'.
3628 1. When updating 'md_local' (the current thread's copy of 'md')
3629 during PRNG output generation, hash all of the previous
3630 'md_local' value, not just the half used for PRNG output.
3632 2. Make the number of bytes from 'state' included into the hash
3633 independent from the number of PRNG bytes requested.
3635 The first measure alone would be sufficient to avoid
3636 Markku-Juhani's attack. (Actually it had never occurred
3637 to me that the half of 'md_local' used for chaining was the
3638 half from which PRNG output bytes were taken -- I had always
3639 assumed that the secret half would be used.) The second
3640 measure makes sure that additional data from 'state' is never
3641 mixed into 'md_local' in small portions; this heuristically
3642 further strengthens the PRNG.
3645 *) Fix crypto/bn/asm/mips3.s.
3648 *) When only the key is given to "enc", the IV is undefined. Print out
3649 an error message in this case.
3652 *) Handle special case when X509_NAME is empty in X509 printing routines.
3655 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
3656 positive and less than q.
3659 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
3660 used: it isn't thread safe and the add_lock_callback should handle
3662 [Paul Rose <Paul.Rose@bridge.com>]
3664 *) Verify that incoming data obeys the block size in
3665 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
3669 [Ulf Möller, Bodo Möller]
3671 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
3672 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
3673 when fixing the server behaviour for backwards-compatible 'client
3674 hello' messages. (Note that the attack is impractical against
3675 SSL 3.0 and TLS 1.0 anyway because length and version checking
3676 means that the probability of guessing a valid ciphertext is
3677 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
3680 Before 0.9.5, the countermeasure (hide the error by generating a
3681 random 'decryption result') did not work properly because
3682 ERR_clear_error() was missing, meaning that SSL_get_error() would
3683 detect the supposedly ignored error.
3685 Both problems are now fixed.
3688 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
3689 (previously it was 1024).
3692 *) Fix for compatibility mode trust settings: ignore trust settings
3693 unless some valid trust or reject settings are present.
3696 *) Fix for blowfish EVP: its a variable length cipher.
3699 *) Fix various bugs related to DSA S/MIME verification. Handle missing
3700 parameters in DSA public key structures and return an error in the
3701 DSA routines if parameters are absent.
3704 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
3705 in the current directory if neither $RANDFILE nor $HOME was set.
3706 RAND_file_name() in 0.9.6a returned NULL in this case. This has
3707 caused some confusion to Windows users who haven't defined $HOME.
3708 Thus RAND_file_name() is changed again: e_os.h can define a
3709 DEFAULT_HOME, which will be used if $HOME is not set.
3710 For Windows, we use "C:"; on other platforms, we still require
3711 environment variables.
3713 *) Move 'if (!initialized) RAND_poll()' into regions protected by
3714 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
3715 having multiple threads call RAND_poll() concurrently.
3718 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
3719 combination of a flag and a thread ID variable.
3720 Otherwise while one thread is in ssleay_rand_bytes (which sets the
3721 flag), *other* threads can enter ssleay_add_bytes without obeying
3722 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
3723 that they do not hold after the first thread unsets add_do_not_lock).
3726 *) Change bctest again: '-x' expressions are not available in all
3730 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
3732 *) Fix a couple of memory leaks in PKCS7_dataDecode()
3733 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
3735 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
3736 the default extension for executables, if any. Also, make the perl
3737 scripts that use symlink() to test if it really exists and use "cp"
3738 if it doesn't. All this made OpenSSL compilable and installable in
3742 *) Fix for asn1_GetSequence() for indefinite length constructed data.
3743 If SEQUENCE is length is indefinite just set c->slen to the total
3744 amount of data available.
3745 [Steve Henson, reported by shige@FreeBSD.org]
3746 [This change does not apply to 0.9.7.]
3748 *) Change bctest to avoid here-documents inside command substitution
3749 (workaround for FreeBSD /bin/sh bug).
3750 For compatibility with Ultrix, avoid shell functions (introduced
3751 in the bctest version that searches along $PATH).
3754 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
3755 with des_encrypt() defined on some operating systems, like Solaris
3759 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
3760 On the Importance of Eliminating Errors in Cryptographic
3761 Computations, J. Cryptology 14 (2001) 2, 101-119,
3762 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
3765 *) MIPS assembler BIGNUM division bug fix.
3768 *) Disabled incorrect Alpha assembler code.
3771 *) Fix PKCS#7 decode routines so they correctly update the length
3772 after reading an EOC for the EXPLICIT tag.
3774 [This change does not apply to 0.9.7.]
3776 *) Fix bug in PKCS#12 key generation routines. This was triggered
3777 if a 3DES key was generated with a 0 initial byte. Include
3778 PKCS12_BROKEN_KEYGEN compilation option to retain the old
3779 (but broken) behaviour.
3782 *) Enhance bctest to search for a working bc along $PATH and print
3784 [Tim Rice <tim@multitalents.net> via Richard Levitte]
3786 *) Fix memory leaks in err.c: free err_data string if necessary;
3787 don't write to the wrong index in ERR_set_error_data.
3790 *) Implement ssl23_peek (analogous to ssl23_read), which previously
3794 *) Replace rdtsc with _emit statements for VC++ version 5.
3795 [Jeremy Cooper <jeremy@baymoo.org>]
3797 *) Make it possible to reuse SSLv2 sessions.
3800 *) In copy_email() check for >= 0 as a return value for
3801 X509_NAME_get_index_by_NID() since 0 is a valid index.
3802 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
3804 *) Avoid coredump with unsupported or invalid public keys by checking if
3805 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
3806 PKCS7_verify() fails with non detached data.
3809 *) Don't use getenv in library functions when run as setuid/setgid.
3810 New function OPENSSL_issetugid().
3813 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
3814 due to incorrect handling of multi-threading:
3816 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
3818 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
3820 3. Count how many times MemCheck_off() has been called so that
3821 nested use can be treated correctly. This also avoids
3822 inband-signalling in the previous code (which relied on the
3823 assumption that thread ID 0 is impossible).
3826 *) Add "-rand" option also to s_client and s_server.
3829 *) Fix CPU detection on Irix 6.x.
3830 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
3831 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
3833 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
3836 [This change does not apply to 0.9.7.]
3838 *) Use the cached encoding of an X509_NAME structure rather than
3839 copying it. This is apparently the reason for the libsafe "errors"
3840 but the code is actually correct.
3843 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
3844 Bleichenbacher's DSA attack.
3845 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
3846 to be set and top=0 forces the highest bit to be set; top=-1 is new
3847 and leaves the highest bit random.
3848 [Ulf Moeller, Bodo Moeller]
3850 *) In the NCONF_...-based implementations for CONF_... queries
3851 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
3852 a temporary CONF structure with the data component set to NULL
3853 (which gives segmentation faults in lh_retrieve).
3854 Instead, use NULL for the CONF pointer in CONF_get_string and
3855 CONF_get_number (which may use environment variables) and directly
3856 return NULL from CONF_get_section.
3859 *) Fix potential buffer overrun for EBCDIC.
3862 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
3863 keyUsage if basicConstraints absent for a CA.
3866 *) Make SMIME_write_PKCS7() write mail header values with a format that
3867 is more generally accepted (no spaces before the semicolon), since
3868 some programs can't parse those values properly otherwise. Also make
3869 sure BIO's that break lines after each write do not create invalid
3873 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
3874 macros previously used would not encode an empty SEQUENCE OF
3875 and break the signature.
3877 [This change does not apply to 0.9.7.]
3879 *) Zero the premaster secret after deriving the master secret in
3883 *) Add some EVP_add_digest_alias registrations (as found in
3884 OpenSSL_add_all_digests()) to SSL_library_init()
3885 aka OpenSSL_add_ssl_algorithms(). This provides improved
3886 compatibility with peers using X.509 certificates
3887 with unconventional AlgorithmIdentifier OIDs.
3890 *) Fix for Irix with NO_ASM.
3891 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
3893 *) ./config script fixes.
3894 [Ulf Moeller, Richard Levitte]
3896 *) Fix 'openssl passwd -1'.
3899 *) Change PKCS12_key_gen_asc() so it can cope with non null
3900 terminated strings whose length is passed in the passlen
3901 parameter, for example from PEM callbacks. This was done
3902 by adding an extra length parameter to asc2uni().
3903 [Steve Henson, reported by <oddissey@samsung.co.kr>]
3905 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
3906 call failed, free the DSA structure.
3909 *) Fix to uni2asc() to cope with zero length Unicode strings.
3910 These are present in some PKCS#12 files.
3913 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
3914 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
3915 when writing a 32767 byte record.
3916 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
3918 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
3919 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
3921 (RSA objects have a reference count access to which is protected
3922 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
3923 so they are meant to be shared between threads.)
3924 [Bodo Moeller, Geoff Thorpe; original patch submitted by
3925 "Reddie, Steven" <Steven.Reddie@ca.com>]
3927 *) Fix a deadlock in CRYPTO_mem_leaks().
3930 *) Use better test patterns in bntest.
3933 *) rand_win.c fix for Borland C.
3936 *) BN_rshift bugfix for n == 0.
3939 *) Add a 'bctest' script that checks for some known 'bc' bugs
3940 so that 'make test' does not abort just because 'bc' is broken.
3943 *) Store verify_result within SSL_SESSION also for client side to
3944 avoid potential security hole. (Re-used sessions on the client side
3945 always resulted in verify_result==X509_V_OK, not using the original
3946 result of the server certificate verification.)
3949 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
3950 SSL3_RT_APPLICATION_DATA, return 0.
3951 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
3955 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
3956 releases, have been re-implemented by renaming the previous
3957 implementations of ssl2_read and ssl3_read to ssl2_read_internal
3958 and ssl3_read_internal, respectively, and adding 'peek' parameters
3959 to them. The new ssl[23]_{read,peek} functions are calls to
3960 ssl[23]_read_internal with the 'peek' flag set appropriately.
3961 A 'peek' parameter has also been added to ssl3_read_bytes, which
3962 does the actual work for ssl3_read_internal.
3965 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
3966 the method-specific "init()" handler. Also clean up ex_data after
3967 calling the method-specific "finish()" handler. Previously, this was
3968 happening the other way round.
3971 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
3972 The previous value, 12, was not always sufficient for BN_mod_exp().
3975 *) Make sure that shared libraries get the internal name engine with
3976 the full version number and not just 0. This should mark the
3977 shared libraries as not backward compatible. Of course, this should
3978 be changed again when we can guarantee backward binary compatibility.
3981 *) Fix typo in get_cert_by_subject() in by_dir.c
3982 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
3984 *) Rework the system to generate shared libraries:
3986 - Make note of the expected extension for the shared libraries and
3987 if there is a need for symbolic links from for example libcrypto.so.0
3988 to libcrypto.so.0.9.7. There is extended info in Configure for
3991 - Make as few rebuilds of the shared libraries as possible.
3993 - Still avoid linking the OpenSSL programs with the shared libraries.
3995 - When installing, install the shared libraries separately from the
3999 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
4001 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
4002 and not in SSL_clear because the latter is also used by the
4003 accept/connect functions; previously, the settings made by
4004 SSL_set_read_ahead would be lost during the handshake.
4005 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
4007 *) Correct util/mkdef.pl to be selective about disabled algorithms.
4008 Previously, it would create entries for disableed algorithms no
4012 *) Added several new manual pages for SSL_* function.
4015 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
4017 *) In ssl23_get_client_hello, generate an error message when faced
4018 with an initial SSL 3.0/TLS record that is too small to contain the
4019 first two bytes of the ClientHello message, i.e. client_version.
4020 (Note that this is a pathologic case that probably has never happened
4021 in real life.) The previous approach was to use the version number
4022 from the record header as a substitute; but our protocol choice
4023 should not depend on that one because it is not authenticated
4024 by the Finished messages.
4027 *) More robust randomness gathering functions for Windows.
4028 [Jeffrey Altman <jaltman@columbia.edu>]
4030 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
4031 not set then we don't setup the error code for issuer check errors
4032 to avoid possibly overwriting other errors which the callback does
4033 handle. If an application does set the flag then we assume it knows
4034 what it is doing and can handle the new informational codes
4038 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
4039 a general "ANY" type, as such it should be able to decode anything
4040 including tagged types. However it didn't check the class so it would
4041 wrongly interpret tagged types in the same way as their universal
4042 counterpart and unknown types were just rejected. Changed so that the
4043 tagged and unknown types are handled in the same way as a SEQUENCE:
4044 that is the encoding is stored intact. There is also a new type
4045 "V_ASN1_OTHER" which is used when the class is not universal, in this
4046 case we have no idea what the actual type is so we just lump them all
4050 *) On VMS, stdout may very well lead to a file that is written to
4051 in a record-oriented fashion. That means that every write() will
4052 write a separate record, which will be read separately by the
4053 programs trying to read from it. This can be very confusing.
4055 The solution is to put a BIO filter in the way that will buffer
4056 text until a linefeed is reached, and then write everything a
4057 line at a time, so every record written will be an actual line,
4058 not chunks of lines and not (usually doesn't happen, but I've
4059 seen it once) several lines in one record. BIO_f_linebuffer() is
4062 Currently, it's a VMS-only method, because that's where it has
4063 been tested well enough.
4066 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
4067 it can return incorrect results.
4068 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
4069 but it was in 0.9.6-beta[12].)
4072 *) Disable the check for content being present when verifying detached
4073 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
4074 include zero length content when signing messages.
4077 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
4078 BIO_ctrl (for BIO pairs).
4081 *) Add DSO method for VMS.
4084 *) Bug fix: Montgomery multiplication could produce results with the
4088 *) Add RPM specification openssl.spec and modify it to build three
4089 packages. The default package contains applications, application
4090 documentation and run-time libraries. The devel package contains
4091 include files, static libraries and function documentation. The
4092 doc package contains the contents of the doc directory. The original
4093 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
4096 *) Add a large number of documentation files for many SSL routines.
4097 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
4099 *) Add a configuration entry for Sony News 4.
4100 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
4102 *) Don't set the two most significant bits to one when generating a
4103 random number < q in the DSA library.
4106 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
4107 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
4108 the underlying transport is blocking) if a handshake took place.
4109 (The default behaviour is needed by applications such as s_client
4110 and s_server that use select() to determine when to use SSL_read;
4111 but for applications that know in advance when to expect data, it
4112 just makes things more complicated.)
4115 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
4119 *) Add a few more EBCDIC conditionals that make `req' and `x509'
4120 work better on such systems.
4121 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
4123 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
4124 Update PKCS12_parse() so it copies the friendlyName and the
4125 keyid to the certificates aux info.
4128 *) Fix bug in PKCS7_verify() which caused an infinite loop
4129 if there was more than one signature.
4130 [Sven Uszpelkat <su@celocom.de>]
4132 *) Major change in util/mkdef.pl to include extra information
4133 about each symbol, as well as presentig variables as well
4134 as functions. This change means that there's n more need
4135 to rebuild the .num files when some algorithms are excluded.
4138 *) Allow the verify time to be set by an application,
4139 rather than always using the current time.
4142 *) Phase 2 verify code reorganisation. The certificate
4143 verify code now looks up an issuer certificate by a
4144 number of criteria: subject name, authority key id
4145 and key usage. It also verifies self signed certificates
4146 by the same criteria. The main comparison function is
4147 X509_check_issued() which performs these checks.
4149 Lot of changes were necessary in order to support this
4150 without completely rewriting the lookup code.
4152 Authority and subject key identifier are now cached.
4154 The LHASH 'certs' is X509_STORE has now been replaced
4155 by a STACK_OF(X509_OBJECT). This is mainly because an
4156 LHASH can't store or retrieve multiple objects with
4157 the same hash value.
4159 As a result various functions (which were all internal
4160 use only) have changed to handle the new X509_STORE
4161 structure. This will break anything that messed round
4162 with X509_STORE internally.
4164 The functions X509_STORE_add_cert() now checks for an
4165 exact match, rather than just subject name.
4167 The X509_STORE API doesn't directly support the retrieval
4168 of multiple certificates matching a given criteria, however
4169 this can be worked round by performing a lookup first
4170 (which will fill the cache with candidate certificates)
4171 and then examining the cache for matches. This is probably
4172 the best we can do without throwing out X509_LOOKUP
4173 entirely (maybe later...).
4175 The X509_VERIFY_CTX structure has been enhanced considerably.
4177 All certificate lookup operations now go via a get_issuer()
4178 callback. Although this currently uses an X509_STORE it
4179 can be replaced by custom lookups. This is a simple way
4180 to bypass the X509_STORE hackery necessary to make this
4181 work and makes it possible to use more efficient techniques
4182 in future. A very simple version which uses a simple
4183 STACK for its trusted certificate store is also provided
4184 using X509_STORE_CTX_trusted_stack().
4186 The verify_cb() and verify() callbacks now have equivalents
4187 in the X509_STORE_CTX structure.
4189 X509_STORE_CTX also has a 'flags' field which can be used
4190 to customise the verify behaviour.
4193 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
4194 excludes S/MIME capabilities.
4197 *) When a certificate request is read in keep a copy of the
4198 original encoding of the signed data and use it when outputing
4199 again. Signatures then use the original encoding rather than
4200 a decoded, encoded version which may cause problems if the
4201 request is improperly encoded.
4204 *) For consistency with other BIO_puts implementations, call
4205 buffer_write(b, ...) directly in buffer_puts instead of calling
4208 In BIO_puts, increment b->num_write as in BIO_write.
4209 [Peter.Sylvester@EdelWeb.fr]
4211 *) Fix BN_mul_word for the case where the word is 0. (We have to use
4212 BN_zero, we may not return a BIGNUM with an array consisting of
4216 *) Avoid calling abort() from within the library when problems are
4217 detected, except if preprocessor symbols have been defined
4218 (such as REF_CHECK, BN_DEBUG etc.).
4221 *) New openssl application 'rsautl'. This utility can be
4222 used for low level RSA operations. DER public key
4223 BIO/fp routines also added.
4226 *) New Configure entry and patches for compiling on QNX 4.
4227 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
4229 *) A demo state-machine implementation was sponsored by
4230 Nuron (http://www.nuron.com/) and is now available in
4231 demos/state_machine.
4234 *) New options added to the 'dgst' utility for signature
4235 generation and verification.
4238 *) Unrecognized PKCS#7 content types are now handled via a
4239 catch all ASN1_TYPE structure. This allows unsupported
4240 types to be stored as a "blob" and an application can
4241 encode and decode it manually.
4244 *) Fix various signed/unsigned issues to make a_strex.c
4246 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
4248 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
4249 length if passed a buffer. ASN1_INTEGER_to_BN failed
4250 if passed a NULL BN and its argument was negative.
4251 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
4253 *) Modification to PKCS#7 encoding routines to output definite
4254 length encoding. Since currently the whole structures are in
4255 memory there's not real point in using indefinite length
4256 constructed encoding. However if OpenSSL is compiled with
4257 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
4260 *) Added BIO_vprintf() and BIO_vsnprintf().
4263 *) Added more prefixes to parse for in the the strings written
4264 through a logging bio, to cover all the levels that are available
4265 through syslog. The prefixes are now:
4267 PANIC, EMERG, EMR => LOG_EMERG
4268 ALERT, ALR => LOG_ALERT
4269 CRIT, CRI => LOG_CRIT
4270 ERROR, ERR => LOG_ERR
4271 WARNING, WARN, WAR => LOG_WARNING
4272 NOTICE, NOTE, NOT => LOG_NOTICE
4273 INFO, INF => LOG_INFO
4274 DEBUG, DBG => LOG_DEBUG
4276 and as before, if none of those prefixes are present at the
4277 beginning of the string, LOG_ERR is chosen.
4279 On Win32, the LOG_* levels are mapped according to this:
4281 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
4282 LOG_WARNING => EVENTLOG_WARNING_TYPE
4283 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
4287 *) Made it possible to reconfigure with just the configuration
4288 argument "reconf" or "reconfigure". The command line arguments
4289 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
4290 and are retrieved from there when reconfiguring.
4294 [Assar Westerlund <assar@sics.se>, Richard Levitte]
4296 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
4299 *) The obj_dat.pl script was messing up the sorting of object
4300 names. The reason was that it compared the quoted version
4301 of strings as a result "OCSP" > "OCSP Signing" because
4302 " > SPACE. Changed script to store unquoted versions of
4303 names and add quotes on output. It was also omitting some
4304 names from the lookup table if they were given a default
4305 value (that is if SN is missing it is given the same
4306 value as LN and vice versa), these are now added on the
4307 grounds that if an object has a name we should be able to
4308 look it up. Finally added warning output when duplicate
4309 short or long names are found.
4312 *) Changes needed for Tandem NSK.
4313 [Scott Uroff <scott@xypro.com>]
4315 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
4316 RSA_padding_check_SSLv23(), special padding was never detected
4317 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
4318 version rollback attacks was not effective.
4320 In s23_clnt.c, don't use special rollback-attack detection padding
4321 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
4322 client; similarly, in s23_srvr.c, don't do the rollback check if
4323 SSL 2.0 is the only protocol enabled in the server.
4326 *) Make it possible to get hexdumps of unprintable data with 'openssl
4327 asn1parse'. By implication, the functions ASN1_parse_dump() and
4328 BIO_dump_indent() are added.
4331 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
4332 these print out strings and name structures based on various
4333 flags including RFC2253 support and proper handling of
4334 multibyte characters. Added options to the 'x509' utility
4335 to allow the various flags to be set.
4338 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
4339 Also change the functions X509_cmp_current_time() and
4340 X509_gmtime_adj() work with an ASN1_TIME structure,
4341 this will enable certificates using GeneralizedTime in validity
4342 dates to be checked.
4345 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
4346 negative public key encodings) on by default,
4347 NO_NEG_PUBKEY_BUG can be set to disable it.
4350 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
4351 content octets. An i2c_ASN1_OBJECT is unnecessary because
4352 the encoding can be trivially obtained from the structure.
4355 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
4356 not read locks (CRYPTO_r_[un]lock).
4359 *) A first attempt at creating official support for shared
4360 libraries through configuration. I've kept it so the
4361 default is static libraries only, and the OpenSSL programs
4362 are always statically linked for now, but there are
4363 preparations for dynamic linking in place.
4364 This has been tested on Linux and Tru64.
4367 *) Randomness polling function for Win9x, as described in:
4368 Peter Gutmann, Software Generation of Practically Strong
4372 *) Fix so PRNG is seeded in req if using an already existing
4376 *) New options to smime application. -inform and -outform
4377 allow alternative formats for the S/MIME message including
4378 PEM and DER. The -content option allows the content to be
4379 specified separately. This should allow things like Netscape
4380 form signing output easier to verify.
4383 *) Fix the ASN1 encoding of tags using the 'long form'.
4386 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
4387 STRING types. These convert content octets to and from the
4388 underlying type. The actual tag and length octets are
4389 already assumed to have been read in and checked. These
4390 are needed because all other string types have virtually
4391 identical handling apart from the tag. By having versions
4392 of the ASN1 functions that just operate on content octets
4393 IMPLICIT tagging can be handled properly. It also allows
4394 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
4395 and ASN1_INTEGER are identical apart from the tag.
4398 *) Change the handling of OID objects as follows:
4400 - New object identifiers are inserted in objects.txt, following
4401 the syntax given in objects.README.
4402 - objects.pl is used to process obj_mac.num and create a new
4404 - obj_dat.pl is used to create a new obj_dat.h, using the data in
4407 This is currently kind of a hack, and the perl code in objects.pl
4408 isn't very elegant, but it works as I intended. The simplest way
4409 to check that it worked correctly is to look in obj_dat.h and
4410 check the array nid_objs and make sure the objects haven't moved
4411 around (this is important!). Additions are OK, as well as
4412 consistent name changes.
4415 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
4418 *) Addition of the command line parameter '-rand file' to 'openssl req'.
4419 The given file adds to whatever has already been seeded into the
4420 random pool through the RANDFILE configuration file option or
4421 environment variable, or the default random state file.
4424 *) mkstack.pl now sorts each macro group into lexical order.
4425 Previously the output order depended on the order the files
4426 appeared in the directory, resulting in needless rewriting
4430 *) Patches to make OpenSSL compile under Win32 again. Mostly
4431 work arounds for the VC++ problem that it treats func() as
4432 func(void). Also stripped out the parts of mkdef.pl that
4433 added extra typesafe functions: these no longer exist.
4436 *) Reorganisation of the stack code. The macros are now all
4437 collected in safestack.h . Each macro is defined in terms of
4438 a "stack macro" of the form SKM_<name>(type, a, b). The
4439 DEBUG_SAFESTACK is now handled in terms of function casts,
4440 this has the advantage of retaining type safety without the
4441 use of additional functions. If DEBUG_SAFESTACK is not defined
4442 then the non typesafe macros are used instead. Also modified the
4443 mkstack.pl script to handle the new form. Needs testing to see
4444 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
4445 the default if no major problems. Similar behaviour for ASN1_SET_OF
4446 and PKCS12_STACK_OF.
4449 *) When some versions of IIS use the 'NET' form of private key the
4450 key derivation algorithm is different. Normally MD5(password) is
4451 used as a 128 bit RC4 key. In the modified case
4452 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
4453 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
4454 as the old Netscape_RSA functions except they have an additional
4455 'sgckey' parameter which uses the modified algorithm. Also added
4456 an -sgckey command line option to the rsa utility. Thanks to
4457 Adrian Peck <bertie@ncipher.com> for posting details of the modified
4458 algorithm to openssl-dev.
4461 *) The evp_local.h macros were using 'c.##kname' which resulted in
4462 invalid expansion on some systems (SCO 5.0.5 for example).
4463 Corrected to 'c.kname'.
4464 [Phillip Porch <root@theporch.com>]
4466 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
4467 a STACK of email addresses from a certificate or request, these look
4468 in the subject name and the subject alternative name extensions and
4469 omit any duplicate addresses.
4472 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
4473 This makes DSA verification about 2 % faster.
4476 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
4477 (meaning that now 2^5 values will be precomputed, which is only 4 KB
4478 plus overhead for 1024 bit moduli).
4479 This makes exponentiations about 0.5 % faster for 1024 bit
4480 exponents (as measured by "openssl speed rsa2048").
4483 *) Rename memory handling macros to avoid conflicts with other
4485 Malloc => OPENSSL_malloc
4486 Malloc_locked => OPENSSL_malloc_locked
4487 Realloc => OPENSSL_realloc
4488 Free => OPENSSL_free
4491 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
4492 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
4495 *) CygWin32 support.
4496 [John Jarvie <jjarvie@newsguy.com>]
4498 *) The type-safe stack code has been rejigged. It is now only compiled
4499 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
4500 by default all type-specific stack functions are "#define"d back to
4501 standard stack functions. This results in more streamlined output
4502 but retains the type-safety checking possibilities of the original
4506 *) The STACK code has been cleaned up, and certain type declarations
4507 that didn't make a lot of sense have been brought in line. This has
4508 also involved a cleanup of sorts in safestack.h to more correctly
4509 map type-safe stack functions onto their plain stack counterparts.
4510 This work has also resulted in a variety of "const"ifications of
4511 lots of the code, especially "_cmp" operations which should normally
4512 be prototyped with "const" parameters anyway.
4515 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
4516 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
4517 (The PRNG state consists of two parts, the large pool 'state' and 'md',
4518 where all of 'md' is used each time the PRNG is used, but 'state'
4519 is used only indexed by a cyclic counter. As entropy may not be
4520 well distributed from the beginning, 'md' is important as a
4521 chaining variable. However, the output function chains only half
4522 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
4523 all of 'md', and seeding with STATE_SIZE dummy bytes will result
4524 in all of 'state' being rewritten, with the new values depending
4525 on virtually all of 'md'. This overcomes the 80 bit limitation.)
4528 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
4529 the handshake is continued after ssl_verify_cert_chain();
4530 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
4531 can lead to 'unexplainable' connection aborts later.
4532 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
4534 *) Major EVP API cipher revision.
4535 Add hooks for extra EVP features. This allows various cipher
4536 parameters to be set in the EVP interface. Support added for variable
4537 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
4538 setting of RC2 and RC5 parameters.
4540 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
4543 Remove lots of duplicated code from the EVP library. For example *every*
4544 cipher init() function handles the 'iv' in the same way according to the
4545 cipher mode. They also all do nothing if the 'key' parameter is NULL and
4546 for CFB and OFB modes they zero ctx->num.
4548 New functionality allows removal of S/MIME code RC2 hack.
4550 Most of the routines have the same form and so can be declared in terms
4553 By shifting this to the top level EVP_CipherInit() it can be removed from
4554 all individual ciphers. If the cipher wants to handle IVs or keys
4555 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
4558 Change lots of functions like EVP_EncryptUpdate() to now return a
4559 value: although software versions of the algorithms cannot fail
4560 any installed hardware versions can.
4563 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
4564 this option is set, tolerate broken clients that send the negotiated
4565 protocol version number instead of the requested protocol version
4569 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
4570 i.e. non-zero for export ciphersuites, zero otherwise.
4571 Previous versions had this flag inverted, inconsistent with
4572 rsa_tmp_cb (..._TMP_RSA_CB).
4573 [Bodo Moeller; problem reported by Amit Chopra]
4575 *) Add missing DSA library text string. Work around for some IIS
4576 key files with invalid SEQUENCE encoding.
4579 *) Add a document (doc/standards.txt) that list all kinds of standards
4580 and so on that are implemented in OpenSSL.
4583 *) Enhance c_rehash script. Old version would mishandle certificates
4584 with the same subject name hash and wouldn't handle CRLs at all.
4585 Added -fingerprint option to crl utility, to support new c_rehash
4589 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
4592 *) Fix for SSL server purpose checking. Server checking was
4593 rejecting certificates which had extended key usage present
4594 but no ssl client purpose.
4595 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
4597 *) Make PKCS#12 code work with no password. The PKCS#12 spec
4598 is a little unclear about how a blank password is handled.
4599 Since the password in encoded as a BMPString with terminating
4600 double NULL a zero length password would end up as just the
4601 double NULL. However no password at all is different and is
4602 handled differently in the PKCS#12 key generation code. NS
4603 treats a blank password as zero length. MSIE treats it as no
4604 password on export: but it will try both on import. We now do
4605 the same: PKCS12_parse() tries zero length and no password if
4606 the password is set to "" or NULL (NULL is now a valid password:
4607 it wasn't before) as does the pkcs12 application.
4610 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
4611 perror when PEM_read_bio_X509_REQ fails, the error message must
4612 be obtained from the error queue.
4615 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
4616 it in ERR_remove_state if appropriate, and change ERR_get_state
4617 accordingly to avoid race conditions (this is necessary because
4618 thread_hash is no longer constant once set).
4621 *) Bugfix for linux-elf makefile.one.
4624 *) RSA_get_default_method() will now cause a default
4625 RSA_METHOD to be chosen if one doesn't exist already.
4626 Previously this was only set during a call to RSA_new()
4627 or RSA_new_method(NULL) meaning it was possible for
4628 RSA_get_default_method() to return NULL.
4631 *) Added native name translation to the existing DSO code
4632 that will convert (if the flag to do so is set) filenames
4633 that are sufficiently small and have no path information
4634 into a canonical native form. Eg. "blah" converted to
4635 "libblah.so" or "blah.dll" etc.
4638 *) New function ERR_error_string_n(e, buf, len) which is like
4639 ERR_error_string(e, buf), but writes at most 'len' bytes
4640 including the 0 terminator. For ERR_error_string_n, 'buf'
4642 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
4644 *) CONF library reworked to become more general. A new CONF
4645 configuration file reader "class" is implemented as well as a
4646 new functions (NCONF_*, for "New CONF") to handle it. The now
4647 old CONF_* functions are still there, but are reimplemented to
4648 work in terms of the new functions. Also, a set of functions
4649 to handle the internal storage of the configuration data is
4650 provided to make it easier to write new configuration file
4651 reader "classes" (I can definitely see something reading a
4652 configuration file in XML format, for example), called _CONF_*,
4653 or "the configuration storage API"...
4655 The new configuration file reading functions are:
4657 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
4658 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
4660 NCONF_default, NCONF_WIN32
4662 NCONF_dump_fp, NCONF_dump_bio
4664 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
4665 NCONF_new creates a new CONF object. This works in the same way
4666 as other interfaces in OpenSSL, like the BIO interface.
4667 NCONF_dump_* dump the internal storage of the configuration file,
4668 which is useful for debugging. All other functions take the same
4669 arguments as the old CONF_* functions wth the exception of the
4670 first that must be a `CONF *' instead of a `LHASH *'.
4672 To make it easer to use the new classes with the old CONF_* functions,
4673 the function CONF_set_default_method is provided.
4676 *) Add '-tls1' option to 'openssl ciphers', which was already
4677 mentioned in the documentation but had not been implemented.
4678 (This option is not yet really useful because even the additional
4679 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
4682 *) Initial DSO code added into libcrypto for letting OpenSSL (and
4683 OpenSSL-based applications) load shared libraries and bind to
4684 them in a portable way.
4685 [Geoff Thorpe, with contributions from Richard Levitte]
4687 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
4689 *) Make sure _lrotl and _lrotr are only used with MSVC.
4691 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
4692 (the default implementation of RAND_status).
4694 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
4695 to '-clrext' (= clear extensions), as intended and documented.
4696 [Bodo Moeller; inconsistency pointed out by Michael Attili
4699 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
4700 was larger than the MD block size.
4701 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
4703 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
4704 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
4705 using the passed key: if the passed key was a private key the result
4706 of X509_print(), for example, would be to print out all the private key
4710 *) des_quad_cksum() byte order bug fix.
4711 [Ulf Möller, using the problem description in krb4-0.9.7, where
4712 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
4714 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
4716 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
4718 *) For easily testing in shell scripts whether some command
4719 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
4720 returns with exit code 0 iff no command of the given name is available.
4721 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
4722 the output goes to stdout and nothing is printed to stderr.
4723 Additional arguments are always ignored.
4725 Since for each cipher there is a command of the same name,
4726 the 'no-cipher' compilation switches can be tested this way.
4728 ('openssl no-XXX' is not able to detect pseudo-commands such
4729 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
4732 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
4735 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
4736 is set; it will be thrown away anyway because each handshake creates
4738 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
4739 to parameters -- in previous versions (since OpenSSL 0.9.3) the
4740 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
4741 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
4744 *) New s_client option -ign_eof: EOF at stdin is ignored, and
4745 'Q' and 'R' lose their special meanings (quit/renegotiate).
4746 This is part of what -quiet does; unlike -quiet, -ign_eof
4747 does not suppress any output.
4750 *) Add compatibility options to the purpose and trust code. The
4751 purpose X509_PURPOSE_ANY is "any purpose" which automatically
4752 accepts a certificate or CA, this was the previous behaviour,
4753 with all the associated security issues.
4755 X509_TRUST_COMPAT is the old trust behaviour: only and
4756 automatically trust self signed roots in certificate store. A
4757 new trust setting X509_TRUST_DEFAULT is used to specify that
4758 a purpose has no associated trust setting and it should instead
4759 use the value in the default purpose.
4762 *) Fix the PKCS#8 DSA private key code so it decodes keys again
4763 and fix a memory leak.
4766 *) In util/mkerr.pl (which implements 'make errors'), preserve
4767 reason strings from the previous version of the .c file, as
4768 the default to have only downcase letters (and digits) in
4769 automatically generated reasons codes is not always appropriate.
4772 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
4773 using strerror. Previously, ERR_reason_error_string() returned
4774 library names as reason strings for SYSerr; but SYSerr is a special
4775 case where small numbers are errno values, not library numbers.
4778 *) Add '-dsaparam' option to 'openssl dhparam' application. This
4779 converts DSA parameters into DH parameters. (When creating parameters,
4780 DSA_generate_parameters is used.)
4783 *) Include 'length' (recommended exponent length) in C code generated
4784 by 'openssl dhparam -C'.
4787 *) The second argument to set_label in perlasm was already being used
4788 so couldn't be used as a "file scope" flag. Moved to third argument
4792 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
4793 instead of RAND_bytes for encryption IVs and salts.
4796 *) Include RAND_status() into RAND_METHOD instead of implementing
4797 it only for md_rand.c Otherwise replacing the PRNG by calling
4798 RAND_set_rand_method would be impossible.
4801 *) Don't let DSA_generate_key() enter an infinite loop if the random
4802 number generation fails.
4805 *) New 'rand' application for creating pseudo-random output.
4808 *) Added configuration support for Linux/IA64
4809 [Rolf Haberrecker <rolf@suse.de>]
4811 *) Assembler module support for Mingw32.
4814 *) Shared library support for HPUX (in shlib/).
4815 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
4817 *) Shared library support for Solaris gcc.
4818 [Lutz Behnke <behnke@trustcenter.de>]
4820 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
4822 *) PKCS7_encrypt() was adding text MIME headers twice because they
4823 were added manually and by SMIME_crlf_copy().
4826 *) In bntest.c don't call BN_rand with zero bits argument.
4827 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
4829 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
4830 case was implemented. This caused BN_div_recp() to fail occasionally.
4833 *) Add an optional second argument to the set_label() in the perl
4834 assembly language builder. If this argument exists and is set
4835 to 1 it signals that the assembler should use a symbol whose
4836 scope is the entire file, not just the current function. This
4837 is needed with MASM which uses the format label:: for this scope.
4838 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
4840 *) Change the ASN1 types so they are typedefs by default. Before
4841 almost all types were #define'd to ASN1_STRING which was causing
4842 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
4846 *) Change names of new functions to the new get1/get0 naming
4847 convention: After 'get1', the caller owns a reference count
4848 and has to call ..._free; 'get0' returns a pointer to some
4849 data structure without incrementing reference counters.
4850 (Some of the existing 'get' functions increment a reference
4851 counter, some don't.)
4852 Similarly, 'set1' and 'add1' functions increase reference
4853 counters or duplicate objects.
4856 *) Allow for the possibility of temp RSA key generation failure:
4857 the code used to assume it always worked and crashed on failure.
4860 *) Fix potential buffer overrun problem in BIO_printf().
4861 [Ulf Möller, using public domain code by Patrick Powell; problem
4862 pointed out by David Sacerdote <das33@cornell.edu>]
4864 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
4865 RAND_egd() and RAND_status(). In the command line application,
4866 the EGD socket can be specified like a seed file using RANDFILE
4870 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
4871 Some CAs (e.g. Verisign) distribute certificates in this form.
4874 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
4875 list to exclude them. This means that no special compilation option
4876 is needed to use anonymous DH: it just needs to be included in the
4880 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
4881 EVP_MD_type. The old functionality is available in a new macro called
4882 EVP_MD_md(). Change code that uses it and update docs.
4885 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
4886 where the 'void *' argument is replaced by a function pointer argument.
4887 Previously 'void *' was abused to point to functions, which works on
4888 many platforms, but is not correct. As these functions are usually
4889 called by macros defined in OpenSSL header files, most source code
4890 should work without changes.
4893 *) <openssl/opensslconf.h> (which is created by Configure) now contains
4894 sections with information on -D... compiler switches used for
4895 compiling the library so that applications can see them. To enable
4896 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
4897 must be defined. E.g.,
4898 #define OPENSSL_ALGORITHM_DEFINES
4899 #include <openssl/opensslconf.h>
4900 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
4901 [Richard Levitte, Ulf and Bodo Möller]
4903 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
4907 *) Change the 'other' type in certificate aux info to a STACK_OF
4908 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
4909 the required ASN1 format: arbitrary types determined by an OID.
4912 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
4913 argument to 'req'. This is not because the function is newer or
4914 better than others it just uses the work 'NEW' in the certificate
4915 request header lines. Some software needs this.
4918 *) Reorganise password command line arguments: now passwords can be
4919 obtained from various sources. Delete the PEM_cb function and make
4920 it the default behaviour: i.e. if the callback is NULL and the
4921 usrdata argument is not NULL interpret it as a null terminated pass
4922 phrase. If usrdata and the callback are NULL then the pass phrase
4923 is prompted for as usual.
4926 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
4927 the support is automatically enabled. The resulting binaries will
4928 autodetect the card and use it if present.
4929 [Ben Laurie and Compaq Inc.]
4931 *) Work around for Netscape hang bug. This sends certificate request
4932 and server done in one record. Since this is perfectly legal in the
4933 SSL/TLS protocol it isn't a "bug" option and is on by default. See
4934 the bugs/SSLv3 entry for more info.
4937 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
4940 *) Add -rand argument to smime and pkcs12 applications and read/write
4944 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
4947 *) Add command line password options to the remaining applications.
4950 *) Bug fix for BN_div_recp() for numerators with an even number of
4954 *) More tests in bntest.c, and changed test_bn output.
4957 *) ./config recognizes MacOS X now.
4960 *) Bug fix for BN_div() when the first words of num and divsor are
4961 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
4964 *) Add support for various broken PKCS#8 formats, and command line
4965 options to produce them.
4968 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
4969 get temporary BIGNUMs from a BN_CTX.
4972 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
4976 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
4977 include a #define from the old name to the new. The original intent
4978 was that statically linked binaries could for example just call
4979 SSLeay_add_all_ciphers() to just add ciphers to the table and not
4980 link with digests. This never worked becayse SSLeay_add_all_digests()
4981 and SSLeay_add_all_ciphers() were in the same source file so calling
4982 one would link with the other. They are now in separate source files.
4985 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
4988 *) Use a less unusual form of the Miller-Rabin primality test (it used
4989 a binary algorithm for exponentiation integrated into the Miller-Rabin
4990 loop, our standard modexp algorithms are faster).
4993 *) Support for the EBCDIC character set completed.
4994 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
4996 *) Source code cleanups: use const where appropriate, eliminate casts,
4997 use void * instead of char * in lhash.
5000 *) Bugfix: ssl3_send_server_key_exchange was not restartable
5001 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
5002 this the server could overwrite ephemeral keys that the client
5006 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
5007 using 50 iterations of the Rabin-Miller test.
5009 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
5010 iterations of the Rabin-Miller test as required by the appendix
5011 to FIPS PUB 186[-1]) instead of DSA_is_prime.
5012 As BN_is_prime_fasttest includes trial division, DSA parameter
5013 generation becomes much faster.
5015 This implies a change for the callback functions in DSA_is_prime
5016 and DSA_generate_parameters: The callback function is called once
5017 for each positive witness in the Rabin-Miller test, not just
5018 occasionally in the inner loop; and the parameters to the
5019 callback function now provide an iteration count for the outer
5020 loop rather than for the current invocation of the inner loop.
5021 DSA_generate_parameters additionally can call the callback
5022 function with an 'iteration count' of -1, meaning that a
5023 candidate has passed the trial division test (when q is generated
5024 from an application-provided seed, trial division is skipped).
5027 *) New function BN_is_prime_fasttest that optionally does trial
5028 division before starting the Rabin-Miller test and has
5029 an additional BN_CTX * argument (whereas BN_is_prime always
5030 has to allocate at least one BN_CTX).
5031 'callback(1, -1, cb_arg)' is called when a number has passed the
5032 trial division stage.
5035 *) Fix for bug in CRL encoding. The validity dates weren't being handled
5039 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
5042 *) New function BN_pseudo_rand().
5045 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
5046 bignum version of BN_from_montgomery() with the working code from
5047 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
5051 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
5052 made it impossible to use the same SSL_SESSION data structure in
5053 SSL2 clients in multiple threads.
5056 *) The return value of RAND_load_file() no longer counts bytes obtained
5057 by stat(). RAND_load_file(..., -1) is new and uses the complete file
5058 to seed the PRNG (previously an explicit byte count was required).
5059 [Ulf Möller, Bodo Möller]
5061 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
5062 used (char *) instead of (void *) and had casts all over the place.
5065 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
5068 *) Retain source code compatibility for BN_prime_checks macro:
5069 BN_is_prime(..., BN_prime_checks, ...) now uses
5070 BN_prime_checks_for_size to determine the appropriate number of
5071 Rabin-Miller iterations.
5074 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
5075 DH_CHECK_P_NOT_SAFE_PRIME.
5076 (Check if this is true? OpenPGP calls them "strong".)
5079 *) Merge the functionality of "dh" and "gendh" programs into a new program
5080 "dhparam". The old programs are retained for now but will handle DH keys
5081 (instead of parameters) in future.
5084 *) Make the ciphers, s_server and s_client programs check the return values
5085 when a new cipher list is set.
5088 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
5089 ciphers. Before when the 56bit ciphers were enabled the sorting was
5092 The syntax for the cipher sorting has been extended to support sorting by
5093 cipher-strength (using the strength_bits hard coded in the tables).
5094 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
5096 Fix a bug in the cipher-command parser: when supplying a cipher command
5097 string with an "undefined" symbol (neither command nor alphanumeric
5098 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
5099 an error is flagged.
5101 Due to the strength-sorting extension, the code of the
5102 ssl_create_cipher_list() function was completely rearranged. I hope that
5103 the readability was also increased :-)
5104 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5106 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
5107 for the first serial number and places 2 in the serial number file. This
5108 avoids problems when the root CA is created with serial number zero and
5109 the first user certificate has the same issuer name and serial number
5113 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
5114 the new code. Add documentation for this stuff.
5117 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
5118 X509_*() to X509at_*() on the grounds that they don't handle X509
5119 structures and behave in an analagous way to the X509v3 functions:
5120 they shouldn't be called directly but wrapper functions should be used
5123 So we also now have some wrapper functions that call the X509at functions
5124 when passed certificate requests. (TO DO: similar things can be done with
5125 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
5126 things. Some of these need some d2i or i2d and print functionality
5127 because they handle more complex structures.)
5130 *) Add missing #ifndefs that caused missing symbols when building libssl
5131 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
5132 NO_RSA in ssl/s2*.c.
5133 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
5135 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
5136 has a return value which indicates the quality of the random data
5137 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
5138 error queue. New function RAND_pseudo_bytes() generates output that is
5139 guaranteed to be unique but not unpredictable. RAND_add is like
5140 RAND_seed, but takes an extra argument for an entropy estimate
5141 (RAND_seed always assumes full entropy).
5144 *) Do more iterations of Rabin-Miller probable prime test (specifically,
5145 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
5146 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
5147 in crypto/bn/bn_prime.c for the complete table). This guarantees a
5148 false-positive rate of at most 2^-80 for random input.
5151 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
5154 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
5155 in the 0.9.5 release), this returns the chain
5156 from an X509_CTX structure with a dup of the stack and all
5157 the X509 reference counts upped: so the stack will exist
5158 after X509_CTX_cleanup() has been called. Modify pkcs12.c
5161 Also make SSL_SESSION_print() print out the verify return
5165 *) Add manpage for the pkcs12 command. Also change the default
5166 behaviour so MAC iteration counts are used unless the new
5167 -nomaciter option is used. This improves file security and
5168 only older versions of MSIE (4.0 for example) need it.
5171 *) Honor the no-xxx Configure options when creating .DEF files.
5174 *) Add PKCS#10 attributes to field table: challengePassword,
5175 unstructuredName and unstructuredAddress. These are taken from
5176 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
5177 international characters are used.
5179 More changes to X509_ATTRIBUTE code: allow the setting of types
5180 based on strings. Remove the 'loc' parameter when adding
5181 attributes because these will be a SET OF encoding which is sorted
5185 *) Initial changes to the 'req' utility to allow request generation
5186 automation. This will allow an application to just generate a template
5187 file containing all the field values and have req construct the
5190 Initial support for X509_ATTRIBUTE handling. Stacks of these are
5191 used all over the place including certificate requests and PKCS#7
5192 structures. They are currently handled manually where necessary with
5193 some primitive wrappers for PKCS#7. The new functions behave in a
5194 manner analogous to the X509 extension functions: they allow
5195 attributes to be looked up by NID and added.
5197 Later something similar to the X509V3 code would be desirable to
5198 automatically handle the encoding, decoding and printing of the
5199 more complex types. The string types like challengePassword can
5200 be handled by the string table functions.
5202 Also modified the multi byte string table handling. Now there is
5203 a 'global mask' which masks out certain types. The table itself
5204 can use the flag STABLE_NO_MASK to ignore the mask setting: this
5205 is useful when for example there is only one permissible type
5206 (as in countryName) and using the mask might result in no valid
5210 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
5211 SSL_get_peer_finished to allow applications to obtain the latest
5212 Finished messages sent to the peer or expected from the peer,
5213 respectively. (SSL_get_peer_finished is usually the Finished message
5214 actually received from the peer, otherwise the protocol will be aborted.)
5216 As the Finished message are message digests of the complete handshake
5217 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
5218 be used for external authentication procedures when the authentication
5219 provided by SSL/TLS is not desired or is not enough.
5222 *) Enhanced support for Alpha Linux is added. Now ./config checks if
5223 the host supports BWX extension and if Compaq C is present on the
5224 $PATH. Just exploiting of the BWX extension results in 20-30%
5225 performance kick for some algorithms, e.g. DES and RC4 to mention
5226 a couple. Compaq C in turn generates ~20% faster code for MD5 and
5230 *) Add support for MS "fast SGC". This is arguably a violation of the
5231 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
5232 weak crypto and after checking the certificate is SGC a second one
5233 with strong crypto. MS SGC stops the first handshake after receiving
5234 the server certificate message and sends a second client hello. Since
5235 a server will typically do all the time consuming operations before
5236 expecting any further messages from the client (server key exchange
5237 is the most expensive) there is little difference between the two.
5239 To get OpenSSL to support MS SGC we have to permit a second client
5240 hello message after we have sent server done. In addition we have to
5241 reset the MAC if we do get this second client hello.
5244 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
5245 if a DER encoded private key is RSA or DSA traditional format. Changed
5246 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
5247 format DER encoded private key. Newer code should use PKCS#8 format which
5248 has the key type encoded in the ASN1 structure. Added DER private key
5249 support to pkcs8 application.
5252 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
5253 ciphersuites has been selected (as required by the SSL 3/TLS 1
5254 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
5255 is set, we interpret this as a request to violate the specification
5256 (the worst that can happen is a handshake failure, and 'correct'
5257 behaviour would result in a handshake failure anyway).
5260 *) In SSL_CTX_add_session, take into account that there might be multiple
5261 SSL_SESSION structures with the same session ID (e.g. when two threads
5262 concurrently obtain them from an external cache).
5263 The internal cache can handle only one SSL_SESSION with a given ID,
5264 so if there's a conflict, we now throw out the old one to achieve
5268 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
5269 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
5270 some routines that use cipher OIDs: some ciphers do not have OIDs
5271 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
5275 *) Simplify the trust setting structure and code. Now we just have
5276 two sequences of OIDs for trusted and rejected settings. These will
5277 typically have values the same as the extended key usage extension
5278 and any application specific purposes.
5280 The trust checking code now has a default behaviour: it will just
5281 check for an object with the same NID as the passed id. Functions can
5282 be provided to override either the default behaviour or the behaviour
5283 for a given id. SSL client, server and email already have functions
5284 in place for compatibility: they check the NID and also return "trusted"
5285 if the certificate is self signed.
5288 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
5289 traditional format into an EVP_PKEY structure.
5292 *) Add a password callback function PEM_cb() which either prompts for
5293 a password if usr_data is NULL or otherwise assumes it is a null
5294 terminated password. Allow passwords to be passed on command line
5295 environment or config files in a few more utilities.
5298 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
5299 keys. Add some short names for PKCS#8 PBE algorithms and allow them
5300 to be specified on the command line for the pkcs8 and pkcs12 utilities.
5301 Update documentation.
5304 *) Support for ASN1 "NULL" type. This could be handled before by using
5305 ASN1_TYPE but there wasn't any function that would try to read a NULL
5306 and produce an error if it couldn't. For compatibility we also have
5307 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
5308 don't allocate anything because they don't need to.
5311 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
5313 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
5315 *) Rebuild of the memory allocation routines used by OpenSSL code and
5316 possibly others as well. The purpose is to make an interface that
5317 provide hooks so anyone can build a separate set of allocation and
5318 deallocation routines to be used by OpenSSL, for example memory
5319 pool implementations, or something else, which was previously hard
5320 since Malloc(), Realloc() and Free() were defined as macros having
5321 the values malloc, realloc and free, respectively (except for Win32
5322 compilations). The same is provided for memory debugging code.
5323 OpenSSL already comes with functionality to find memory leaks, but
5324 this gives people a chance to debug other memory problems.
5326 With these changes, a new set of functions and macros have appeared:
5328 CRYPTO_set_mem_debug_functions() [F]
5329 CRYPTO_get_mem_debug_functions() [F]
5330 CRYPTO_dbg_set_options() [F]
5331 CRYPTO_dbg_get_options() [F]
5332 CRYPTO_malloc_debug_init() [M]
5334 The memory debug functions are NULL by default, unless the library
5335 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
5336 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
5337 gives the standard debugging functions that come with OpenSSL) or
5338 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
5339 provided by the library user) must be used. When the standard
5340 debugging functions are used, CRYPTO_dbg_set_options can be used to
5341 request additional information:
5342 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
5343 the CRYPTO_MDEBUG_xxx macro when compiling the library.
5345 Also, things like CRYPTO_set_mem_functions will always give the
5346 expected result (the new set of functions is used for allocation
5347 and deallocation) at all times, regardless of platform and compiler
5350 To finish it up, some functions that were never use in any other
5351 way than through macros have a new API and new semantic:
5354 CRYPTO_dbg_realloc()
5357 All macros of value have retained their old syntax.
5358 [Richard Levitte and Bodo Moeller]
5360 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
5361 ordering of SMIMECapabilities wasn't in "strength order" and there
5362 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
5366 *) Some ASN1 types with illegal zero length encoding (INTEGER,
5367 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
5368 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
5370 *) Merge in my S/MIME library for OpenSSL. This provides a simple
5371 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
5372 functionality to handle multipart/signed properly) and a utility
5373 called 'smime' to call all this stuff. This is based on code I
5374 originally wrote for Celo who have kindly allowed it to be
5375 included in OpenSSL.
5378 *) Add variants des_set_key_checked and des_set_key_unchecked of
5379 des_set_key (aka des_key_sched). Global variable des_check_key
5380 decides which of these is called by des_set_key; this way
5381 des_check_key behaves as it always did, but applications and
5382 the library itself, which was buggy for des_check_key == 1,
5383 have a cleaner way to pick the version they need.
5386 *) New function PKCS12_newpass() which changes the password of a
5390 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
5391 dynamic mix. In both cases the ids can be used as an index into the
5392 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
5393 functions so they accept a list of the field values and the
5394 application doesn't need to directly manipulate the X509_TRUST
5398 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
5402 *) Modify the way the V3 extension code looks up extensions. This now
5403 works in a similar way to the object code: we have some "standard"
5404 extensions in a static table which is searched with OBJ_bsearch()
5405 and the application can add dynamic ones if needed. The file
5406 crypto/x509v3/ext_dat.h now has the info: this file needs to be
5407 updated whenever a new extension is added to the core code and kept
5408 in ext_nid order. There is a simple program 'tabtest.c' which checks
5409 this. New extensions are not added too often so this file can readily
5410 be maintained manually.
5412 There are two big advantages in doing things this way. The extensions
5413 can be looked up immediately and no longer need to be "added" using
5414 X509V3_add_standard_extensions(): this function now does nothing.
5415 [Side note: I get *lots* of email saying the extension code doesn't
5416 work because people forget to call this function]
5417 Also no dynamic allocation is done unless new extensions are added:
5418 so if we don't add custom extensions there is no need to call
5419 X509V3_EXT_cleanup().
5422 *) Modify enc utility's salting as follows: make salting the default. Add a
5423 magic header, so unsalted files fail gracefully instead of just decrypting
5424 to garbage. This is because not salting is a big security hole, so people
5425 should be discouraged from doing it.
5428 *) Fixes and enhancements to the 'x509' utility. It allowed a message
5429 digest to be passed on the command line but it only used this
5430 parameter when signing a certificate. Modified so all relevant
5431 operations are affected by the digest parameter including the
5432 -fingerprint and -x509toreq options. Also -x509toreq choked if a
5433 DSA key was used because it didn't fix the digest.
5436 *) Initial certificate chain verify code. Currently tests the untrusted
5437 certificates for consistency with the verify purpose (which is set
5438 when the X509_STORE_CTX structure is set up) and checks the pathlength.
5440 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
5441 this is because it will reject chains with invalid extensions whereas
5442 every previous version of OpenSSL and SSLeay made no checks at all.
5444 Trust code: checks the root CA for the relevant trust settings. Trust
5445 settings have an initial value consistent with the verify purpose: e.g.
5446 if the verify purpose is for SSL client use it expects the CA to be
5447 trusted for SSL client use. However the default value can be changed to
5448 permit custom trust settings: one example of this would be to only trust
5449 certificates from a specific "secure" set of CAs.
5451 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
5452 which should be used for version portability: especially since the
5453 verify structure is likely to change more often now.
5455 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
5456 to set them. If not set then assume SSL clients will verify SSL servers
5459 Two new options to the verify program: -untrusted allows a set of
5460 untrusted certificates to be passed in and -purpose which sets the
5461 intended purpose of the certificate. If a purpose is set then the
5462 new chain verify code is used to check extension consistency.
5465 *) Support for the authority information access extension.
5468 *) Modify RSA and DSA PEM read routines to transparently handle
5469 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
5470 public keys in a format compatible with certificate
5471 SubjectPublicKeyInfo structures. Unfortunately there were already
5472 functions called *_PublicKey_* which used various odd formats so
5473 these are retained for compatibility: however the DSA variants were
5474 never in a public release so they have been deleted. Changed dsa/rsa
5475 utilities to handle the new format: note no releases ever handled public
5476 keys so we should be OK.
5478 The primary motivation for this change is to avoid the same fiasco
5479 that dogs private keys: there are several incompatible private key
5480 formats some of which are standard and some OpenSSL specific and
5481 require various evil hacks to allow partial transparent handling and
5482 even then it doesn't work with DER formats. Given the option anything
5483 other than PKCS#8 should be dumped: but the other formats have to
5484 stay in the name of compatibility.
5486 With public keys and the benefit of hindsight one standard format
5487 is used which works with EVP_PKEY, RSA or DSA structures: though
5488 it clearly returns an error if you try to read the wrong kind of key.
5490 Added a -pubkey option to the 'x509' utility to output the public key.
5491 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
5492 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
5493 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
5494 that do the same as the EVP_PKEY_assign_*() except they up the
5495 reference count of the added key (they don't "swallow" the
5499 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
5500 CRLs would fail if the file contained no certificates or no CRLs:
5501 added a new function to read in both types and return the number
5502 read: this means that if none are read it will be an error. The
5503 DER versions of the certificate and CRL reader would always fail
5504 because it isn't possible to mix certificates and CRLs in DER format
5505 without choking one or the other routine. Changed this to just read
5506 a certificate: this is the best we can do. Also modified the code
5507 in apps/verify.c to take notice of return codes: it was previously
5508 attempting to read in certificates from NULL pointers and ignoring
5509 any errors: this is one reason why the cert and CRL reader seemed
5510 to work. It doesn't check return codes from the default certificate
5511 routines: these may well fail if the certificates aren't installed.
5514 *) Code to support otherName option in GeneralName.
5517 *) First update to verify code. Change the verify utility
5518 so it warns if it is passed a self signed certificate:
5519 for consistency with the normal behaviour. X509_verify
5520 has been modified to it will now verify a self signed
5521 certificate if *exactly* the same certificate appears
5522 in the store: it was previously impossible to trust a
5523 single self signed certificate. This means that:
5524 openssl verify ss.pem
5525 now gives a warning about a self signed certificate but
5526 openssl verify -CAfile ss.pem ss.pem
5530 *) For servers, store verify_result in SSL_SESSION data structure
5531 (and add it to external session representation).
5532 This is needed when client certificate verifications fails,
5533 but an application-provided verification callback (set by
5534 SSL_CTX_set_cert_verify_callback) allows accepting the session
5535 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
5536 but returns 1): When the session is reused, we have to set
5537 ssl->verify_result to the appropriate error code to avoid
5539 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
5541 *) Fix a bug in the new PKCS#7 code: it didn't consider the
5542 case in PKCS7_dataInit() where the signed PKCS7 structure
5543 didn't contain any existing data because it was being created.
5544 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
5546 *) Add a salt to the key derivation routines in enc.c. This
5547 forms the first 8 bytes of the encrypted file. Also add a
5548 -S option to allow a salt to be input on the command line.
5551 *) New function X509_cmp(). Oddly enough there wasn't a function
5552 to compare two certificates. We do this by working out the SHA1
5553 hash and comparing that. X509_cmp() will be needed by the trust
5557 *) SSL_get1_session() is like SSL_get_session(), but increments
5558 the reference count in the SSL_SESSION returned.
5559 [Geoff Thorpe <geoff@eu.c2.net>]
5561 *) Fix for 'req': it was adding a null to request attributes.
5562 Also change the X509_LOOKUP and X509_INFO code to handle
5563 certificate auxiliary information.
5566 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
5570 *) Add the possibility to add extra information to the memory leak
5571 detecting output, to form tracebacks, showing from where each
5572 allocation was originated: CRYPTO_push_info("constant string") adds
5573 the string plus current file name and line number to a per-thread
5574 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
5575 is like calling CYRPTO_pop_info() until the stack is empty.
5576 Also updated memory leak detection code to be multi-thread-safe.
5579 *) Add options -text and -noout to pkcs7 utility and delete the
5580 encryption options which never did anything. Update docs.
5583 *) Add options to some of the utilities to allow the pass phrase
5584 to be included on either the command line (not recommended on
5585 OSes like Unix) or read from the environment. Update the
5586 manpages and fix a few bugs.
5589 *) Add a few manpages for some of the openssl commands.
5592 *) Fix the -revoke option in ca. It was freeing up memory twice,
5593 leaking and not finding already revoked certificates.
5596 *) Extensive changes to support certificate auxiliary information.
5597 This involves the use of X509_CERT_AUX structure and X509_AUX
5598 functions. An X509_AUX function such as PEM_read_X509_AUX()
5599 can still read in a certificate file in the usual way but it
5600 will also read in any additional "auxiliary information". By
5601 doing things this way a fair degree of compatibility can be
5602 retained: existing certificates can have this information added
5603 using the new 'x509' options.
5605 Current auxiliary information includes an "alias" and some trust
5606 settings. The trust settings will ultimately be used in enhanced
5607 certificate chain verification routines: currently a certificate
5608 can only be trusted if it is self signed and then it is trusted
5612 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
5613 The problem was that one of the replacement routines had not been working
5614 since SSLeay releases. For now the offending routine has been replaced
5615 with non-optimised assembler. Even so, this now gives around 95%
5616 performance improvement for 1024 bit RSA signs.
5619 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
5620 handling. Most clients have the effective key size in bits equal to
5621 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
5622 A few however don't do this and instead use the size of the decrypted key
5623 to determine the RC2 key length and the AlgorithmIdentifier to determine
5624 the effective key length. In this case the effective key length can still
5625 be 40 bits but the key length can be 168 bits for example. This is fixed
5626 by manually forcing an RC2 key into the EVP_PKEY structure because the
5627 EVP code can't currently handle unusual RC2 key sizes: it always assumes
5628 the key length and effective key length are equal.
5631 *) Add a bunch of functions that should simplify the creation of
5632 X509_NAME structures. Now you should be able to do:
5633 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
5634 and have it automatically work out the correct field type and fill in
5635 the structures. The more adventurous can try:
5636 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
5637 and it will (hopefully) work out the correct multibyte encoding.
5640 *) Change the 'req' utility to use the new field handling and multibyte
5641 copy routines. Before the DN field creation was handled in an ad hoc
5642 way in req, ca, and x509 which was rather broken and didn't support
5643 BMPStrings or UTF8Strings. Since some software doesn't implement
5644 BMPStrings or UTF8Strings yet, they can be enabled using the config file
5645 using the dirstring_type option. See the new comment in the default
5646 openssl.cnf for more info.
5649 *) Make crypto/rand/md_rand.c more robust:
5650 - Assure unique random numbers after fork().
5651 - Make sure that concurrent threads access the global counter and
5652 md serializably so that we never lose entropy in them
5653 or use exactly the same state in multiple threads.
5654 Access to the large state is not always serializable because
5655 the additional locking could be a performance killer, and
5656 md should be large enough anyway.
5659 *) New file apps/app_rand.c with commonly needed functionality
5660 for handling the random seed file.
5662 Use the random seed file in some applications that previously did not:
5664 dsaparam -genkey (which also ignored its '-rand' option),
5667 x509 (when signing).
5668 Except on systems with /dev/urandom, it is crucial to have a random
5669 seed file at least for key creation, DSA signing, and for DH exchanges;
5670 for RSA signatures we could do without one.
5672 gendh and gendsa (unlike genrsa) used to read only the first byte
5673 of each file listed in the '-rand' option. The function as previously
5674 found in genrsa is now in app_rand.c and is used by all programs
5675 that support '-rand'.
5678 *) In RAND_write_file, use mode 0600 for creating files;
5679 don't just chmod when it may be too late.
5682 *) Report an error from X509_STORE_load_locations
5683 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
5686 *) New function ASN1_mbstring_copy() this copies a string in either
5687 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
5688 into an ASN1_STRING type. A mask of permissible types is passed
5689 and it chooses the "minimal" type to use or an error if not type
5693 *) Add function equivalents to the various macros in asn1.h. The old
5694 macros are retained with an M_ prefix. Code inside the library can
5695 use the M_ macros. External code (including the openssl utility)
5696 should *NOT* in order to be "shared library friendly".
5699 *) Add various functions that can check a certificate's extensions
5700 to see if it usable for various purposes such as SSL client,
5701 server or S/MIME and CAs of these types. This is currently
5702 VERY EXPERIMENTAL but will ultimately be used for certificate chain
5703 verification. Also added a -purpose flag to x509 utility to
5704 print out all the purposes.
5707 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
5711 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
5712 for, obtain and decode and extension and obtain its critical flag.
5713 This allows all the necessary extension code to be handled in a
5714 single function call.
5717 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
5718 platforms. See crypto/rc4/rc4_enc.c for further details.
5721 *) New -noout option to asn1parse. This causes no output to be produced
5722 its main use is when combined with -strparse and -out to extract data
5723 from a file (which may not be in ASN.1 format).
5726 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
5727 when producing the local key id.
5728 [Richard Levitte <levitte@stacken.kth.se>]
5730 *) New option -dhparam in s_server. This allows a DH parameter file to be
5731 stated explicitly. If it is not stated then it tries the first server
5732 certificate file. The previous behaviour hard coded the filename
5736 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
5737 a public key to be input or output. For example:
5738 openssl rsa -in key.pem -pubout -out pubkey.pem
5739 Also added necessary DSA public key functions to handle this.
5742 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
5743 in the message. This was handled by allowing
5744 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
5745 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
5747 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
5748 to the end of the strings whereas this didn't. This would cause problems
5749 if strings read with d2i_ASN1_bytes() were later modified.
5750 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
5752 *) Fix for base64 decode bug. When a base64 bio reads only one line of
5753 data and it contains EOF it will end up returning an error. This is
5754 caused by input 46 bytes long. The cause is due to the way base64
5755 BIOs find the start of base64 encoded data. They do this by trying a
5756 trial decode on each line until they find one that works. When they
5757 do a flag is set and it starts again knowing it can pass all the
5758 data directly through the decoder. Unfortunately it doesn't reset
5759 the context it uses. This means that if EOF is reached an attempt
5760 is made to pass two EOFs through the context and this causes the
5761 resulting error. This can also cause other problems as well. As is
5762 usual with these problems it takes *ages* to find and the fix is
5763 trivial: move one line.
5764 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
5766 *) Ugly workaround to get s_client and s_server working under Windows. The
5767 old code wouldn't work because it needed to select() on sockets and the
5768 tty (for keypresses and to see if data could be written). Win32 only
5769 supports select() on sockets so we select() with a 1s timeout on the
5770 sockets and then see if any characters are waiting to be read, if none
5771 are present then we retry, we also assume we can always write data to
5772 the tty. This isn't nice because the code then blocks until we've
5773 received a complete line of data and it is effectively polling the
5774 keyboard at 1s intervals: however it's quite a bit better than not
5775 working at all :-) A dedicated Windows application might handle this
5776 with an event loop for example.
5779 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
5780 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
5781 will be called when RSA_sign() and RSA_verify() are used. This is useful
5782 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
5783 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
5784 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
5785 This necessitated the support of an extra signature type NID_md5_sha1
5786 for SSL signatures and modifications to the SSL library to use it instead
5787 of calling RSA_public_decrypt() and RSA_private_encrypt().
5790 *) Add new -verify -CAfile and -CApath options to the crl program, these
5791 will lookup a CRL issuers certificate and verify the signature in a
5792 similar way to the verify program. Tidy up the crl program so it
5793 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
5794 less strict. It will now permit CRL extensions even if it is not
5795 a V2 CRL: this will allow it to tolerate some broken CRLs.
5798 *) Initialize all non-automatic variables each time one of the openssl
5799 sub-programs is started (this is necessary as they may be started
5800 multiple times from the "OpenSSL>" prompt).
5801 [Lennart Bang, Bodo Moeller]
5803 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
5804 removing all other RSA functionality (this is what NO_RSA does). This
5805 is so (for example) those in the US can disable those operations covered
5806 by the RSA patent while allowing storage and parsing of RSA keys and RSA
5810 *) Non-copying interface to BIO pairs.
5811 (still largely untested)
5814 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
5815 ASCII string. This was handled independently in various places before.
5818 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
5819 UTF8 strings a character at a time.
5822 *) Use client_version from client hello to select the protocol
5823 (s23_srvr.c) and for RSA client key exchange verification
5824 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
5827 *) Add various utility functions to handle SPKACs, these were previously
5828 handled by poking round in the structure internals. Added new function
5829 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
5830 print, verify and generate SPKACs. Based on an original idea from
5831 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
5834 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
5837 *) Allow the config file extension section to be overwritten on the
5838 command line. Based on an original idea from Massimiliano Pala
5839 <madwolf@comune.modena.it>. The new option is called -extensions
5840 and can be applied to ca, req and x509. Also -reqexts to override
5841 the request extensions in req and -crlexts to override the crl extensions
5845 *) Add new feature to the SPKAC handling in ca. Now you can include
5846 the same field multiple times by preceding it by "XXXX." for example:
5849 this is the same syntax as used in the req config file.
5852 *) Allow certificate extensions to be added to certificate requests. These
5853 are specified in a 'req_extensions' option of the req section of the
5854 config file. They can be printed out with the -text option to req but
5855 are otherwise ignored at present.
5858 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
5859 data read consists of only the final block it would not decrypted because
5860 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
5861 A misplaced 'break' also meant the decrypted final block might not be
5862 copied until the next read.
5865 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
5866 a few extra parameters to the DH structure: these will be useful if
5867 for example we want the value of 'q' or implement X9.42 DH.
5870 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
5871 provides hooks that allow the default DSA functions or functions on a
5872 "per key" basis to be replaced. This allows hardware acceleration and
5873 hardware key storage to be handled without major modification to the
5874 library. Also added low level modexp hooks and CRYPTO_EX structure and
5875 associated functions.
5878 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
5879 as "read only": it can't be written to and the buffer it points to will
5880 not be freed. Reading from a read only BIO is much more efficient than
5881 a normal memory BIO. This was added because there are several times when
5882 an area of memory needs to be read from a BIO. The previous method was
5883 to create a memory BIO and write the data to it, this results in two
5884 copies of the data and an O(n^2) reading algorithm. There is a new
5885 function BIO_new_mem_buf() which creates a read only memory BIO from
5886 an area of memory. Also modified the PKCS#7 routines to use read only
5890 *) Bugfix: ssl23_get_client_hello did not work properly when called in
5891 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
5892 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
5893 but a retry condition occured while trying to read the rest.
5896 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
5897 NID_pkcs7_encrypted by default: this was wrong since this should almost
5898 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
5899 the encrypted data type: this is a more sensible place to put it and it
5900 allows the PKCS#12 code to be tidied up that duplicated this
5904 *) Changed obj_dat.pl script so it takes its input and output files on
5905 the command line. This should avoid shell escape redirection problems
5909 *) Initial support for certificate extension requests, these are included
5910 in things like Xenroll certificate requests. Included functions to allow
5911 extensions to be obtained and added.
5914 *) -crlf option to s_client and s_server for sending newlines as
5915 CRLF (as required by many protocols).
5918 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
5920 *) Install libRSAglue.a when OpenSSL is built with RSAref.
5921 [Ralf S. Engelschall]
5923 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
5924 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
5926 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
5930 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
5931 DH parameters/keys (q is lost during that conversion, but the resulting
5932 DH parameters contain its length).
5934 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
5935 much faster than DH_generate_parameters (which creates parameters
5936 where p = 2*q + 1), and also the smaller q makes DH computations
5937 much more efficient (160-bit exponentiation instead of 1024-bit
5938 exponentiation); so this provides a convenient way to support DHE
5939 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
5940 utter importance to use
5941 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
5943 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
5944 when such DH parameters are used, because otherwise small subgroup
5945 attacks may become possible!
5948 *) Avoid memory leak in i2d_DHparams.
5951 *) Allow the -k option to be used more than once in the enc program:
5952 this allows the same encrypted message to be read by multiple recipients.
5955 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
5956 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
5957 it will always use the numerical form of the OID, even if it has a short
5961 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
5962 method only got called if p,q,dmp1,dmq1,iqmp components were present,
5963 otherwise bn_mod_exp was called. In the case of hardware keys for example
5964 no private key components need be present and it might store extra data
5965 in the RSA structure, which cannot be accessed from bn_mod_exp.
5966 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
5967 private key operations.
5970 *) Added support for SPARC Linux.
5973 *) pem_password_cb function type incompatibly changed from
5974 typedef int pem_password_cb(char *buf, int size, int rwflag);
5976 ....(char *buf, int size, int rwflag, void *userdata);
5977 so that applications can pass data to their callbacks:
5978 The PEM[_ASN1]_{read,write}... functions and macros now take an
5979 additional void * argument, which is just handed through whenever
5980 the password callback is called.
5981 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
5983 New function SSL_CTX_set_default_passwd_cb_userdata.
5985 Compatibility note: As many C implementations push function arguments
5986 onto the stack in reverse order, the new library version is likely to
5987 interoperate with programs that have been compiled with the old
5988 pem_password_cb definition (PEM_whatever takes some data that
5989 happens to be on the stack as its last argument, and the callback
5990 just ignores this garbage); but there is no guarantee whatsoever that
5993 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
5994 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
5995 problems not only on Windows, but also on some Unix platforms.
5996 To avoid problematic command lines, these definitions are now in an
5997 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
5998 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
6001 *) MIPS III/IV assembler module is reimplemented.
6004 *) More DES library cleanups: remove references to srand/rand and
6005 delete an unused file.
6008 *) Add support for the the free Netwide assembler (NASM) under Win32,
6009 since not many people have MASM (ml) and it can be hard to obtain.
6010 This is currently experimental but it seems to work OK and pass all
6011 the tests. Check out INSTALL.W32 for info.
6014 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
6015 without temporary keys kept an extra copy of the server key,
6016 and connections with temporary keys did not free everything in case
6020 *) New function RSA_check_key and new openssl rsa option -check
6021 for verifying the consistency of RSA keys.
6022 [Ulf Moeller, Bodo Moeller]
6024 *) Various changes to make Win32 compile work:
6025 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
6026 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
6027 comparison" warnings.
6028 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
6031 *) Add a debugging option to PKCS#5 v2 key generation function: when
6032 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
6033 derived keys are printed to stderr.
6036 *) Copy the flags in ASN1_STRING_dup().
6037 [Roman E. Pavlov <pre@mo.msk.ru>]
6039 *) The x509 application mishandled signing requests containing DSA
6040 keys when the signing key was also DSA and the parameters didn't match.
6042 It was supposed to omit the parameters when they matched the signing key:
6043 the verifying software was then supposed to automatically use the CA's
6044 parameters if they were absent from the end user certificate.
6046 Omitting parameters is no longer recommended. The test was also
6047 the wrong way round! This was probably due to unusual behaviour in
6048 EVP_cmp_parameters() which returns 1 if the parameters match.
6049 This meant that parameters were omitted when they *didn't* match and
6050 the certificate was useless. Certificates signed with 'ca' didn't have
6052 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
6054 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
6055 The interface is as follows:
6056 Applications can use
6057 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
6058 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
6059 "off" is now the default.
6060 The library internally uses
6061 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
6062 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
6063 to disable memory-checking temporarily.
6065 Some inconsistent states that previously were possible (and were
6066 even the default) are now avoided.
6068 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
6069 with each memory chunk allocated; this is occasionally more helpful
6070 than just having a counter.
6072 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
6074 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
6078 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
6079 which largely parallels "options", but is for changing API behaviour,
6080 whereas "options" are about protocol behaviour.
6081 Initial "mode" flags are:
6083 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
6084 a single record has been written.
6085 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
6086 retries use the same buffer location.
6087 (But all of the contents must be
6091 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
6094 *) Fix problems with no-hmac etc.
6095 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
6097 *) New functions RSA_get_default_method(), RSA_set_method() and
6098 RSA_get_method(). These allows replacement of RSA_METHODs without having
6099 to mess around with the internals of an RSA structure.
6102 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
6103 Also really enable memory leak checks in openssl.c and in some
6105 [Chad C. Mulligan, Bodo Moeller]
6107 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
6108 up the length of negative integers. This has now been simplified to just
6109 store the length when it is first determined and use it later, rather
6110 than trying to keep track of where data is copied and updating it to
6112 [Steve Henson, reported by Brien Wheeler
6113 <bwheeler@authentica-security.com>]
6115 *) Add a new function PKCS7_signatureVerify. This allows the verification
6116 of a PKCS#7 signature but with the signing certificate passed to the
6117 function itself. This contrasts with PKCS7_dataVerify which assumes the
6118 certificate is present in the PKCS#7 structure. This isn't always the
6119 case: certificates can be omitted from a PKCS#7 structure and be
6120 distributed by "out of band" means (such as a certificate database).
6123 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
6124 function prototypes in pem.h, also change util/mkdef.pl to add the
6125 necessary function names.
6128 *) mk1mf.pl (used by Windows builds) did not properly read the
6129 options set by Configure in the top level Makefile, and Configure
6130 was not even able to write more than one option correctly.
6131 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
6134 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
6135 file to be loaded from a BIO or FILE pointer. The BIO version will
6136 for example allow memory BIOs to contain config info.
6139 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
6140 Whoever hopes to achieve shared-library compatibility across versions
6141 must use this, not the compile-time macro.
6142 (Exercise 0.9.4: Which is the minimum library version required by
6144 Note: All this applies only to multi-threaded programs, others don't
6148 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
6149 through a BIO pair triggered the default case, i.e.
6150 SSLerr(...,SSL_R_UNKNOWN_STATE).
6153 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
6154 can use the SSL library even if none of the specific BIOs is
6158 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
6159 for the encoded length.
6160 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
6162 *) Add initial documentation of the X509V3 functions.
6165 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
6166 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
6167 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
6168 secure PKCS#8 private key format with a high iteration count.
6171 *) Fix determination of Perl interpreter: A perl or perl5
6172 _directory_ in $PATH was also accepted as the interpreter.
6173 [Ralf S. Engelschall]
6175 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
6176 wrong with it but it was very old and did things like calling
6177 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
6181 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
6182 to use the new extension code.
6185 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
6186 with macros. This should make it easier to change their form, add extra
6187 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
6191 *) Add to configuration table a new entry that can specify an alternative
6192 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
6193 according to Mark Crispin <MRC@Panda.COM>.
6197 *) DES CBC did not update the IV. Weird.
6200 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
6201 Changing the behaviour of the former might break existing programs --
6202 where IV updating is needed, des_ncbc_encrypt can be used.
6205 *) When bntest is run from "make test" it drives bc to check its
6206 calculations, as well as internally checking them. If an internal check
6207 fails, it needs to cause bc to give a non-zero result or make test carries
6208 on without noticing the failure. Fixed.
6211 *) DES library cleanups.
6214 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
6215 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
6216 ciphers. NOTE: although the key derivation function has been verified
6217 against some published test vectors it has not been extensively tested
6218 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
6222 *) Instead of "mkdir -p", which is not fully portable, use new
6223 Perl script "util/mkdir-p.pl".
6226 *) Rewrite the way password based encryption (PBE) is handled. It used to
6227 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
6228 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
6229 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
6230 the 'parameter' field of the AlgorithmIdentifier is passed to the
6231 underlying key generation function so it must do its own ASN1 parsing.
6232 This has also changed the EVP_PBE_CipherInit() function which now has a
6233 'parameter' argument instead of literal salt and iteration count values
6234 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
6237 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
6238 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
6239 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
6240 KEY" because this clashed with PKCS#8 unencrypted string. Since this
6241 value was just used as a "magic string" and not used directly its
6242 value doesn't matter.
6245 *) Introduce some semblance of const correctness to BN. Shame C doesn't
6249 *) "linux-sparc64" configuration (ultrapenguin).
6250 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
6251 "linux-sparc" configuration.
6252 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
6254 *) config now generates no-xxx options for missing ciphers.
6257 *) Support the EBCDIC character set (work in progress).
6258 File ebcdic.c not yet included because it has a different license.
6259 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6261 *) Support BS2000/OSD-POSIX.
6262 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6264 *) Make callbacks for key generation use void * instead of char *.
6267 *) Make S/MIME samples compile (not yet tested).
6270 *) Additional typesafe stacks.
6273 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
6277 Changes between 0.9.3 and 0.9.3a [29 May 1999]
6279 *) New configuration variant "sco5-gcc".
6281 *) Updated some demos.
6282 [Sean O Riordain, Wade Scholine]
6284 *) Add missing BIO_free at exit of pkcs12 application.
6287 *) Fix memory leak in conf.c.
6290 *) Updates for Win32 to assembler version of MD5.
6293 *) Set #! path to perl in apps/der_chop to where we found it
6294 instead of using a fixed path.
6297 *) SHA library changes for irix64-mips4-cc.
6300 *) Improvements for VMS support.
6304 Changes between 0.9.2b and 0.9.3 [24 May 1999]
6306 *) Bignum library bug fix. IRIX 6 passes "make test" now!
6307 This also avoids the problems with SC4.2 and unpatched SC5.
6308 [Andy Polyakov <appro@fy.chalmers.se>]
6310 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
6311 These are required because of the typesafe stack would otherwise break
6312 existing code. If old code used a structure member which used to be STACK
6313 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
6314 sk_num or sk_value it would produce an error because the num, data members
6315 are not present in STACK_OF. Now it just produces a warning. sk_set
6316 replaces the old method of assigning a value to sk_value
6317 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
6318 that does this will no longer work (and should use sk_set instead) but
6319 this could be regarded as a "questionable" behaviour anyway.
6322 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
6323 correctly handle encrypted S/MIME data.
6326 *) Change type of various DES function arguments from des_cblock
6327 (which means, in function argument declarations, pointer to char)
6328 to des_cblock * (meaning pointer to array with 8 char elements),
6329 which allows the compiler to do more typechecking; it was like
6330 that back in SSLeay, but with lots of ugly casts.
6332 Introduce new type const_des_cblock.
6335 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
6336 problems: find RecipientInfo structure that matches recipient certificate
6337 and initialise the ASN1 structures properly based on passed cipher.
6340 *) Belatedly make the BN tests actually check the results.
6343 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
6344 to and from BNs: it was completely broken. New compilation option
6345 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
6346 key elements as negative integers.
6349 *) Reorganize and speed up MD5.
6350 [Andy Polyakov <appro@fy.chalmers.se>]
6353 [Richard Levitte <richard@levitte.org>]
6355 *) New option -out to asn1parse to allow the parsed structure to be
6356 output to a file. This is most useful when combined with the -strparse
6357 option to examine the output of things like OCTET STRINGS.
6360 *) Make SSL library a little more fool-proof by not requiring any longer
6361 that SSL_set_{accept,connect}_state be called before
6362 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
6363 in many applications because usually everything *appeared* to work as
6364 intended anyway -- now it really works as intended).
6367 *) Move openssl.cnf out of lib/.
6370 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
6371 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
6372 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
6373 [Ralf S. Engelschall]
6375 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
6376 handle PKCS#7 enveloped data properly.
6377 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
6379 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
6380 copying pointers. The cert_st handling is changed by this in
6381 various ways (and thus what used to be known as ctx->default_cert
6382 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
6383 any longer when s->cert does not give us what we need).
6384 ssl_cert_instantiate becomes obsolete by this change.
6385 As soon as we've got the new code right (possibly it already is?),
6386 we have solved a couple of bugs of the earlier code where s->cert
6387 was used as if it could not have been shared with other SSL structures.
6389 Note that using the SSL API in certain dirty ways now will result
6390 in different behaviour than observed with earlier library versions:
6391 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
6392 does not influence s as it used to.
6394 In order to clean up things more thoroughly, inside SSL_SESSION
6395 we don't use CERT any longer, but a new structure SESS_CERT
6396 that holds per-session data (if available); currently, this is
6397 the peer's certificate chain and, for clients, the server's certificate
6398 and temporary key. CERT holds only those values that can have
6399 meaningful defaults in an SSL_CTX.
6402 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
6403 from the internal representation. Various PKCS#7 fixes: remove some
6404 evil casts and set the enc_dig_alg field properly based on the signing
6408 *) Allow PKCS#12 password to be set from the command line or the
6409 environment. Let 'ca' get its config file name from the environment
6410 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
6414 *) Allow certificate policies extension to use an IA5STRING for the
6415 organization field. This is contrary to the PKIX definition but
6416 VeriSign uses it and IE5 only recognises this form. Document 'x509'
6420 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
6421 without disallowing inline assembler and the like for non-pedantic builds.
6424 *) Support Borland C++ builder.
6425 [Janez Jere <jj@void.si>, modified by Ulf Möller]
6430 *) SHA-1 cleanups and performance enhancements.
6431 [Andy Polyakov <appro@fy.chalmers.se>]
6433 *) Sparc v8plus assembler for the bignum library.
6434 [Andy Polyakov <appro@fy.chalmers.se>]
6436 *) Accept any -xxx and +xxx compiler options in Configure.
6439 *) Update HPUX configuration.
6442 *) Add missing sk_<type>_unshift() function to safestack.h
6443 [Ralf S. Engelschall]
6445 *) New function SSL_CTX_use_certificate_chain_file that sets the
6446 "extra_cert"s in addition to the certificate. (This makes sense
6447 only for "PEM" format files, as chains as a whole are not
6451 *) Support verify_depth from the SSL API.
6452 x509_vfy.c had what can be considered an off-by-one-error:
6453 Its depth (which was not part of the external interface)
6454 was actually counting the number of certificates in a chain;
6455 now it really counts the depth.
6458 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
6459 instead of X509err, which often resulted in confusing error
6460 messages since the error codes are not globally unique
6461 (e.g. an alleged error in ssl3_accept when a certificate
6462 didn't match the private key).
6464 *) New function SSL_CTX_set_session_id_context that allows to set a default
6465 value (so that you don't need SSL_set_session_id_context for each
6466 connection using the SSL_CTX).
6469 *) OAEP decoding bug fix.
6472 *) Support INSTALL_PREFIX for package builders, as proposed by
6476 *) New Configure options "threads" and "no-threads". For systems
6477 where the proper compiler options are known (currently Solaris
6478 and Linux), "threads" is the default.
6481 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
6484 *) Install various scripts to $(OPENSSLDIR)/misc, not to
6485 $(INSTALLTOP)/bin -- they shouldn't clutter directories
6486 such as /usr/local/bin.
6489 *) "make linux-shared" to build shared libraries.
6490 [Niels Poppe <niels@netbox.org>]
6492 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
6495 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
6496 extension adding in x509 utility.
6499 *) Remove NOPROTO sections and error code comments.
6502 *) Partial rewrite of the DEF file generator to now parse the ANSI
6506 *) New Configure options --prefix=DIR and --openssldir=DIR.
6509 *) Complete rewrite of the error code script(s). It is all now handled
6510 by one script at the top level which handles error code gathering,
6511 header rewriting and C source file generation. It should be much better
6512 than the old method: it now uses a modified version of Ulf's parser to
6513 read the ANSI prototypes in all header files (thus the old K&R definitions
6514 aren't needed for error creation any more) and do a better job of
6515 translating function codes into names. The old 'ASN1 error code imbedded
6516 in a comment' is no longer necessary and it doesn't use .err files which
6517 have now been deleted. Also the error code call doesn't have to appear all
6518 on one line (which resulted in some large lines...).
6521 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
6524 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
6525 0 (which usually indicates a closed connection), but continue reading.
6528 *) Fix some race conditions.
6531 *) Add support for CRL distribution points extension. Add Certificate
6532 Policies and CRL distribution points documentation.
6535 *) Move the autogenerated header file parts to crypto/opensslconf.h.
6538 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
6539 8 of keying material. Merlin has also confirmed interop with this fix
6540 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
6541 [Merlin Hughes <merlin@baltimore.ie>]
6543 *) Fix lots of warnings.
6544 [Richard Levitte <levitte@stacken.kth.se>]
6546 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
6547 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
6548 [Richard Levitte <levitte@stacken.kth.se>]
6550 *) Fix problems with sizeof(long) == 8.
6551 [Andy Polyakov <appro@fy.chalmers.se>]
6553 *) Change functions to ANSI C.
6556 *) Fix typos in error codes.
6557 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
6559 *) Remove defunct assembler files from Configure.
6562 *) SPARC v8 assembler BIGNUM implementation.
6563 [Andy Polyakov <appro@fy.chalmers.se>]
6565 *) Support for Certificate Policies extension: both print and set.
6566 Various additions to support the r2i method this uses.
6569 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
6570 return a const string when you are expecting an allocated buffer.
6573 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
6574 types DirectoryString and DisplayText.
6577 *) Add code to allow r2i extensions to access the configuration database,
6578 add an LHASH database driver and add several ctx helper functions.
6581 *) Fix an evil bug in bn_expand2() which caused various BN functions to
6582 fail when they extended the size of a BIGNUM.
6585 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
6586 support typesafe stack.
6589 *) Fix typo in SSL_[gs]et_options().
6590 [Nils Frostberg <nils@medcom.se>]
6592 *) Delete various functions and files that belonged to the (now obsolete)
6593 old X509V3 handling code.
6596 *) New Configure option "rsaref".
6599 *) Don't auto-generate pem.h.
6602 *) Introduce type-safe ASN.1 SETs.
6605 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
6606 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
6608 *) Introduce type-safe STACKs. This will almost certainly break lots of code
6609 that links with OpenSSL (well at least cause lots of warnings), but fear
6610 not: the conversion is trivial, and it eliminates loads of evil casts. A
6611 few STACKed things have been converted already. Feel free to convert more.
6612 In the fullness of time, I'll do away with the STACK type altogether.
6615 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
6616 specified in <certfile> by updating the entry in the index.txt file.
6617 This way one no longer has to edit the index.txt file manually for
6618 revoking a certificate. The -revoke option does the gory details now.
6619 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
6621 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
6622 `-text' option at all and this way the `-noout -text' combination was
6623 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
6624 [Ralf S. Engelschall]
6626 *) Make sure a corresponding plain text error message exists for the
6627 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
6628 verify callback function determined that a certificate was revoked.
6629 [Ralf S. Engelschall]
6631 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
6632 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
6633 all available cipers including rc5, which was forgotten until now.
6634 In order to let the testing shell script know which algorithms
6635 are available, a new (up to now undocumented) command
6636 "openssl list-cipher-commands" is used.
6639 *) Bugfix: s_client occasionally would sleep in select() when
6640 it should have checked SSL_pending() first.
6643 *) New functions DSA_do_sign and DSA_do_verify to provide access to
6644 the raw DSA values prior to ASN.1 encoding.
6647 *) Tweaks to Configure
6648 [Niels Poppe <niels@netbox.org>]
6650 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
6654 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
6657 *) New config option to avoid instructions that are illegal on the 80386.
6658 The default code is faster, but requires at least a 486.
6661 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
6662 SSL2_SERVER_VERSION (not used at all) macros, which are now the
6663 same as SSL2_VERSION anyway.
6666 *) New "-showcerts" option for s_client.
6669 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
6670 application. Various cleanups and fixes.
6673 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
6674 modify error routines to work internally. Add error codes and PBE init
6675 to library startup routines.
6678 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
6679 packing functions to asn1 and evp. Changed function names and error
6680 codes along the way.
6683 *) PKCS12 integration: and so it begins... First of several patches to
6684 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
6685 objects to objects.h
6688 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
6689 and display support for Thawte strong extranet extension.
6692 *) Add LinuxPPC support.
6693 [Jeff Dubrule <igor@pobox.org>]
6695 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
6696 bn_div_words in alpha.s.
6697 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
6699 *) Make sure the RSA OAEP test is skipped under -DRSAref because
6700 OAEP isn't supported when OpenSSL is built with RSAref.
6701 [Ulf Moeller <ulf@fitug.de>]
6703 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
6704 so they no longer are missing under -DNOPROTO.
6705 [Soren S. Jorvang <soren@t.dk>]
6708 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
6710 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
6711 doesn't work when the session is reused. Coming soon!
6714 *) Fix a security hole, that allows sessions to be reused in the wrong
6715 context thus bypassing client cert protection! All software that uses
6716 client certs and session caches in multiple contexts NEEDS PATCHING to
6717 allow session reuse! A fuller solution is in the works.
6718 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
6720 *) Some more source tree cleanups (removed obsolete files
6721 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
6722 permission on "config" script to be executable) and a fix for the INSTALL
6724 [Ulf Moeller <ulf@fitug.de>]
6726 *) Remove some legacy and erroneous uses of malloc, free instead of
6728 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
6730 *) Make rsa_oaep_test return non-zero on error.
6731 [Ulf Moeller <ulf@fitug.de>]
6733 *) Add support for native Solaris shared libraries. Configure
6734 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
6735 if someone would make that last step automatic.
6736 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
6738 *) ctx_size was not built with the right compiler during "make links". Fixed.
6741 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
6742 except NULL ciphers". This means the default cipher list will no longer
6743 enable NULL ciphers. They need to be specifically enabled e.g. with
6744 the string "DEFAULT:eNULL".
6747 *) Fix to RSA private encryption routines: if p < q then it would
6748 occasionally produce an invalid result. This will only happen with
6749 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
6752 *) Be less restrictive and allow also `perl util/perlpath.pl
6753 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
6754 because this way one can also use an interpreter named `perl5' (which is
6755 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
6756 installed as `perl').
6757 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
6759 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
6760 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
6762 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
6763 advapi32.lib to Win32 build and change the pem test comparision
6764 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
6765 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
6766 and crypto/des/ede_cbcm_enc.c.
6769 *) DES quad checksum was broken on big-endian architectures. Fixed.
6772 *) Comment out two functions in bio.h that aren't implemented. Fix up the
6773 Win32 test batch file so it (might) work again. The Win32 test batch file
6774 is horrible: I feel ill....
6777 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
6778 in e_os.h. Audit of header files to check ANSI and non ANSI
6779 sections: 10 functions were absent from non ANSI section and not exported
6780 from Windows DLLs. Fixed up libeay.num for new functions.
6783 *) Make `openssl version' output lines consistent.
6784 [Ralf S. Engelschall]
6786 *) Fix Win32 symbol export lists for BIO functions: Added
6787 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
6788 to ms/libeay{16,32}.def.
6789 [Ralf S. Engelschall]
6791 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
6792 fine under Unix and passes some trivial tests I've now added. But the
6793 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
6794 added to make sure no one expects that this stuff really works in the
6795 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
6796 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
6798 [Ralf S. Engelschall]
6800 *) Fix the generation of two part addresses in perl.
6801 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
6803 *) Add config entry for Linux on MIPS.
6804 [John Tobey <jtobey@channel1.com>]
6806 *) Make links whenever Configure is run, unless we are on Windoze.
6809 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
6810 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
6814 *) Add a useful kludge to allow package maintainers to specify compiler and
6815 other platforms details on the command line without having to patch the
6816 Configure script everytime: One now can use ``perl Configure
6817 <id>:<details>'', i.e. platform ids are allowed to have details appended
6818 to them (seperated by colons). This is treated as there would be a static
6819 pre-configured entry in Configure's %table under key <id> with value
6820 <details> and ``perl Configure <id>'' is called. So, when you want to
6821 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
6822 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
6823 now, which overrides the FreeBSD-elf entry on-the-fly.
6824 [Ralf S. Engelschall]
6826 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
6829 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
6830 on the `perl Configure ...' command line. This way one can compile
6831 OpenSSL libraries with Position Independent Code (PIC) which is needed
6832 for linking it into DSOs.
6833 [Ralf S. Engelschall]
6835 *) Remarkably, export ciphers were totally broken and no-one had noticed!
6839 *) Cleaned up the LICENSE document: The official contact for any license
6840 questions now is the OpenSSL core team under openssl-core@openssl.org.
6841 And add a paragraph about the dual-license situation to make sure people
6842 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
6843 to the OpenSSL toolkit.
6844 [Ralf S. Engelschall]
6846 *) General source tree makefile cleanups: Made `making xxx in yyy...'
6847 display consistent in the source tree and replaced `/bin/rm' by `rm'.
6848 Additonally cleaned up the `make links' target: Remove unnecessary
6849 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
6850 to speed processing and no longer clutter the display with confusing
6851 stuff. Instead only the actually done links are displayed.
6852 [Ralf S. Engelschall]
6854 *) Permit null encryption ciphersuites, used for authentication only. It used
6855 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
6856 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
6860 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
6861 signed attributes when verifying signatures (this would break them),
6862 the detached data encoding was wrong and public keys obtained using
6863 X509_get_pubkey() weren't freed.
6866 *) Add text documentation for the BUFFER functions. Also added a work around
6867 to a Win95 console bug. This was triggered by the password read stuff: the
6868 last character typed gets carried over to the next fread(). If you were
6869 generating a new cert request using 'req' for example then the last
6870 character of the passphrase would be CR which would then enter the first
6874 *) Added the new `Includes OpenSSL Cryptography Software' button as
6875 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
6876 button and can be used by applications based on OpenSSL to show the
6877 relationship to the OpenSSL project.
6878 [Ralf S. Engelschall]
6880 *) Remove confusing variables in function signatures in files
6881 ssl/ssl_lib.c and ssl/ssl.h.
6882 [Lennart Bong <lob@kulthea.stacken.kth.se>]
6884 *) Don't install bss_file.c under PREFIX/include/
6885 [Lennart Bong <lob@kulthea.stacken.kth.se>]
6887 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
6888 functions that return function pointers and has support for NT specific
6889 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
6890 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
6891 unsigned to signed types: this was killing the Win32 compile.
6894 *) Add new certificate file to stack functions,
6895 SSL_add_dir_cert_subjects_to_stack() and
6896 SSL_add_file_cert_subjects_to_stack(). These largely supplant
6897 SSL_load_client_CA_file(), and can be used to add multiple certs easily
6898 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
6899 This means that Apache-SSL and similar packages don't have to mess around
6900 to add as many CAs as they want to the preferred list.
6903 *) Experiment with doxygen documentation. Currently only partially applied to
6905 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
6906 openssl.doxy as the configuration file.
6909 *) Get rid of remaining C++-style comments which strict C compilers hate.
6910 [Ralf S. Engelschall, pointed out by Carlos Amengual]
6912 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
6913 compiled in by default: it has problems with large keys.
6916 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
6917 DH private keys and/or callback functions which directly correspond to
6918 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
6919 is needed for applications which have to configure certificates on a
6920 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
6922 For the RSA certificate situation is makes no difference, but
6923 for the DSA certificate situation this fixes the "no shared cipher"
6924 problem where the OpenSSL cipher selection procedure failed because the
6925 temporary keys were not overtaken from the context and the API provided
6926 no way to reconfigure them.
6927 The new functions now let applications reconfigure the stuff and they
6928 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
6929 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
6930 non-public-API function ssl_cert_instantiate() is used as a helper
6931 function and also to reduce code redundancy inside ssl_rsa.c.
6932 [Ralf S. Engelschall]
6934 *) Move s_server -dcert and -dkey options out of the undocumented feature
6935 area because they are useful for the DSA situation and should be
6936 recognized by the users.
6937 [Ralf S. Engelschall]
6939 *) Fix the cipher decision scheme for export ciphers: the export bits are
6940 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
6941 SSL_EXP_MASK. So, the original variable has to be used instead of the
6942 already masked variable.
6943 [Richard Levitte <levitte@stacken.kth.se>]
6945 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
6946 [Richard Levitte <levitte@stacken.kth.se>]
6948 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
6949 from `int' to `unsigned int' because it's a length and initialized by
6950 EVP_DigestFinal() which expects an `unsigned int *'.
6951 [Richard Levitte <levitte@stacken.kth.se>]
6953 *) Don't hard-code path to Perl interpreter on shebang line of Configure
6954 script. Instead use the usual Shell->Perl transition trick.
6955 [Ralf S. Engelschall]
6957 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
6958 (in addition to RSA certificates) to match the behaviour of `openssl dsa
6959 -noout -modulus' as it's already the case for `openssl rsa -noout
6960 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
6961 currently the public key is printed (a decision which was already done by
6962 `openssl dsa -modulus' in the past) which serves a similar purpose.
6963 Additionally the NO_RSA no longer completely removes the whole -modulus
6964 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
6966 [Ralf S. Engelschall]
6968 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
6969 BIO. See the source (crypto/evp/bio_ok.c) for more info.
6970 [Arne Ansper <arne@ats.cyber.ee>]
6972 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
6973 to be added. Now both 'req' and 'ca' can use new objects defined in the
6977 *) Add cool BIO that does syslog (or event log on NT).
6978 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
6980 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
6981 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
6982 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
6983 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
6986 *) Add preliminary config info for new extension code.
6989 *) Make RSA_NO_PADDING really use no padding.
6990 [Ulf Moeller <ulf@fitug.de>]
6992 *) Generate errors when private/public key check is done.
6995 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
6996 for some CRL extensions and new objects added.
6999 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
7000 key usage extension and fuller support for authority key id.
7003 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
7004 padding method for RSA, which is recommended for new applications in PKCS
7005 #1 v2.0 (RFC 2437, October 1998).
7006 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
7007 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
7008 against Bleichbacher's attack on RSA.
7009 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
7012 *) Updates to the new SSL compression code
7013 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7015 *) Fix so that the version number in the master secret, when passed
7016 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
7017 (because the server will not accept higher), that the version number
7018 is 0x03,0x01, not 0x03,0x00
7019 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7021 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
7022 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
7023 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
7026 *) Support for RAW extensions where an arbitrary extension can be
7027 created by including its DER encoding. See apps/openssl.cnf for
7031 *) Make sure latest Perl versions don't interpret some generated C array
7032 code as Perl array code in the crypto/err/err_genc.pl script.
7033 [Lars Weber <3weber@informatik.uni-hamburg.de>]
7035 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
7036 not many people have the assembler. Various Win32 compilation fixes and
7037 update to the INSTALL.W32 file with (hopefully) more accurate Win32
7041 *) Modify configure script 'Configure' to automatically create crypto/date.h
7042 file under Win32 and also build pem.h from pem.org. New script
7043 util/mkfiles.pl to create the MINFO file on environments that can't do a
7044 'make files': perl util/mkfiles.pl >MINFO should work.
7047 *) Major rework of DES function declarations, in the pursuit of correctness
7048 and purity. As a result, many evil casts evaporated, and some weirdness,
7049 too. You may find this causes warnings in your code. Zapping your evil
7050 casts will probably fix them. Mostly.
7053 *) Fix for a typo in asn1.h. Bug fix to object creation script
7054 obj_dat.pl. It considered a zero in an object definition to mean
7055 "end of object": none of the objects in objects.h have any zeros
7056 so it wasn't spotted.
7057 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
7059 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
7060 Masking (CBCM). In the absence of test vectors, the best I have been able
7061 to do is check that the decrypt undoes the encrypt, so far. Send me test
7062 vectors if you have them.
7065 *) Correct calculation of key length for export ciphers (too much space was
7066 allocated for null ciphers). This has not been tested!
7069 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
7070 message is now correct (it understands "crypto" and "ssl" on its
7071 command line). There is also now an "update" option. This will update
7072 the util/ssleay.num and util/libeay.num files with any new functions.
7074 perl util/mkdef.pl crypto ssl update
7075 it will update them.
7078 *) Overhauled the Perl interface (perl/*):
7079 - ported BN stuff to OpenSSL's different BN library
7080 - made the perl/ source tree CVS-aware
7081 - renamed the package from SSLeay to OpenSSL (the files still contain
7082 their history because I've copied them in the repository)
7083 - removed obsolete files (the test scripts will be replaced
7084 by better Test::Harness variants in the future)
7085 [Ralf S. Engelschall]
7087 *) First cut for a very conservative source tree cleanup:
7088 1. merge various obsolete readme texts into doc/ssleay.txt
7089 where we collect the old documents and readme texts.
7090 2. remove the first part of files where I'm already sure that we no
7091 longer need them because of three reasons: either they are just temporary
7092 files which were left by Eric or they are preserved original files where
7093 I've verified that the diff is also available in the CVS via "cvs diff
7094 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
7095 the crypto/md/ stuff).
7096 [Ralf S. Engelschall]
7098 *) More extension code. Incomplete support for subject and issuer alt
7099 name, issuer and authority key id. Change the i2v function parameters
7100 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
7101 what that's for :-) Fix to ASN1 macro which messed up
7102 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
7105 *) Preliminary support for ENUMERATED type. This is largely copied from the
7109 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
7110 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7112 *) Make sure `make rehash' target really finds the `openssl' program.
7113 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7115 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
7116 like to hear about it if this slows down other processors.
7119 *) Add CygWin32 platform information to Configure script.
7120 [Alan Batie <batie@aahz.jf.intel.com>]
7122 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
7123 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
7125 *) New program nseq to manipulate netscape certificate sequences
7128 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
7132 *) Fixes to BN code. Previously the default was to define BN_RECURSION
7133 but the BN code had some problems that would cause failures when
7134 doing certificate verification and some other functions.
7135 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7137 *) Add ASN1 and PEM code to support netscape certificate sequences.
7140 *) Add ASN1 and PEM code to support netscape certificate sequences.
7143 *) Add several PKIX and private extended key usage OIDs.
7146 *) Modify the 'ca' program to handle the new extension code. Modify
7147 openssl.cnf for new extension format, add comments.
7150 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
7151 and add a sample to openssl.cnf so req -x509 now adds appropriate
7155 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
7156 error code, add initial support to X509_print() and x509 application.
7159 *) Takes a deep breath and start addding X509 V3 extension support code. Add
7160 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
7161 stuff is currently isolated and isn't even compiled yet.
7164 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
7165 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
7166 Removed the versions check from X509 routines when loading extensions:
7167 this allows certain broken certificates that don't set the version
7168 properly to be processed.
7171 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
7172 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
7173 can still be regenerated with "make depend".
7176 *) Spelling mistake in C version of CAST-128.
7177 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
7179 *) Changes to the error generation code. The perl script err-code.pl
7180 now reads in the old error codes and retains the old numbers, only
7181 adding new ones if necessary. It also only changes the .err files if new
7182 codes are added. The makefiles have been modified to only insert errors
7183 when needed (to avoid needlessly modifying header files). This is done
7184 by only inserting errors if the .err file is newer than the auto generated
7185 C file. To rebuild all the error codes from scratch (the old behaviour)
7186 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
7187 or delete all the .err files.
7190 *) CAST-128 was incorrectly implemented for short keys. The C version has
7191 been fixed, but is untested. The assembler versions are also fixed, but
7192 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
7193 to regenerate it if needed.
7194 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
7195 Hagino <itojun@kame.net>]
7197 *) File was opened incorrectly in randfile.c.
7198 [Ulf Möller <ulf@fitug.de>]
7200 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
7201 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
7202 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
7203 al: it's just almost always a UTCTime. Note this patch adds new error
7204 codes so do a "make errors" if there are problems.
7207 *) Correct Linux 1 recognition in config.
7208 [Ulf Möller <ulf@fitug.de>]
7210 *) Remove pointless MD5 hash when using DSA keys in ca.
7211 [Anonymous <nobody@replay.com>]
7213 *) Generate an error if given an empty string as a cert directory. Also
7214 generate an error if handed NULL (previously returned 0 to indicate an
7215 error, but didn't set one).
7216 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
7218 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
7221 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
7222 parameters. This was causing a warning which killed off the Win32 compile.
7225 *) Remove C++ style comments from crypto/bn/bn_local.h.
7226 [Neil Costigan <neil.costigan@celocom.com>]
7228 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
7229 based on a text string, looking up short and long names and finally
7230 "dot" format. The "dot" format stuff didn't work. Added new function
7231 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
7232 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
7233 OID is not part of the table.
7236 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
7237 X509_LOOKUP_by_alias().
7240 *) Sort openssl functions by name.
7243 *) Get the gendsa program working (hopefully) and add it to app list. Remove
7244 encryption from sample DSA keys (in case anyone is interested the password
7248 *) Make _all_ *_free functions accept a NULL pointer.
7249 [Frans Heymans <fheymans@isaserver.be>]
7251 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
7253 [Anonymous <nobody@replay.com>]
7255 *) s_server should send the CAfile as acceptable CAs, not its own cert.
7256 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
7258 *) Don't blow it for numeric -newkey arguments to apps/req.
7259 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
7261 *) Temp key "for export" tests were wrong in s3_srvr.c.
7262 [Anonymous <nobody@replay.com>]
7264 *) Add prototype for temp key callback functions
7265 SSL_CTX_set_tmp_{rsa,dh}_callback().
7268 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
7269 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
7272 *) X509_name_add_entry() freed the wrong thing after an error.
7273 [Arne Ansper <arne@ats.cyber.ee>]
7275 *) rsa_eay.c would attempt to free a NULL context.
7276 [Arne Ansper <arne@ats.cyber.ee>]
7278 *) BIO_s_socket() had a broken should_retry() on Windoze.
7279 [Arne Ansper <arne@ats.cyber.ee>]
7281 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
7282 [Arne Ansper <arne@ats.cyber.ee>]
7284 *) Make sure the already existing X509_STORE->depth variable is initialized
7285 in X509_STORE_new(), but document the fact that this variable is still
7286 unused in the certificate verification process.
7287 [Ralf S. Engelschall]
7289 *) Fix the various library and apps files to free up pkeys obtained from
7290 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
7293 *) Fix reference counting in X509_PUBKEY_get(). This makes
7294 demos/maurice/example2.c work, amongst others, probably.
7295 [Steve Henson and Ben Laurie]
7297 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
7298 `openssl' and second, the shortcut symlinks for the `openssl <command>'
7299 are no longer created. This way we have a single and consistent command
7300 line interface `openssl <command>', similar to `cvs <command>'.
7301 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
7303 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
7304 BIT STRING wrapper always have zero unused bits.
7307 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
7310 *) Make the top-level INSTALL documentation easier to understand.
7313 *) Makefiles updated to exit if an error occurs in a sub-directory
7314 make (including if user presses ^C) [Paul Sutton]
7316 *) Make Montgomery context stuff explicit in RSA data structure.
7319 *) Fix build order of pem and err to allow for generated pem.h.
7322 *) Fix renumbering bug in X509_NAME_delete_entry().
7325 *) Enhanced the err-ins.pl script so it makes the error library number
7326 global and can add a library name. This is needed for external ASN1 and
7327 other error libraries.
7330 *) Fixed sk_insert which never worked properly.
7333 *) Fix ASN1 macros so they can handle indefinite length construted
7334 EXPLICIT tags. Some non standard certificates use these: they can now
7338 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
7339 into a single doc/ssleay.txt bundle. This way the information is still
7340 preserved but no longer messes up this directory. Now it's new room for
7341 the new set of documenation files.
7342 [Ralf S. Engelschall]
7344 *) SETs were incorrectly DER encoded. This was a major pain, because they
7345 shared code with SEQUENCEs, which aren't coded the same. This means that
7346 almost everything to do with SETs or SEQUENCEs has either changed name or
7347 number of arguments.
7348 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
7350 *) Fix test data to work with the above.
7353 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
7354 was already fixed by Eric for 0.9.1 it seems.
7355 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
7357 *) Autodetect FreeBSD3.
7360 *) Fix various bugs in Configure. This affects the following platforms:
7364 unixware-2.0-pentium
7368 *) Eliminate generated files from CVS. Reorder tests to regenerate files
7369 before they are needed.
7372 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
7376 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
7378 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
7379 changed SSLeay to OpenSSL in version strings.
7380 [Ralf S. Engelschall]
7382 *) Some fixups to the top-level documents.
7385 *) Fixed the nasty bug where rsaref.h was not found under compile-time
7386 because the symlink to include/ was missing.
7387 [Ralf S. Engelschall]
7389 *) Incorporated the popular no-RSA/DSA-only patches
7390 which allow to compile a RSA-free SSLeay.
7391 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
7393 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
7394 when "ssleay" is still not found.
7395 [Ralf S. Engelschall]
7397 *) Added more platforms to Configure: Cray T3E, HPUX 11,
7398 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
7400 *) Updated the README file.
7401 [Ralf S. Engelschall]
7403 *) Added various .cvsignore files in the CVS repository subdirs
7404 to make a "cvs update" really silent.
7405 [Ralf S. Engelschall]
7407 *) Recompiled the error-definition header files and added
7408 missing symbols to the Win32 linker tables.
7409 [Ralf S. Engelschall]
7411 *) Cleaned up the top-level documents;
7412 o new files: CHANGES and LICENSE
7413 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
7414 o merged COPYRIGHT into LICENSE
7415 o removed obsolete TODO file
7416 o renamed MICROSOFT to INSTALL.W32
7417 [Ralf S. Engelschall]
7419 *) Removed dummy files from the 0.9.1b source tree:
7420 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
7421 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
7422 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
7423 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
7424 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
7425 [Ralf S. Engelschall]
7427 *) Added various platform portability fixes.
7430 *) The Genesis of the OpenSSL rpject:
7431 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
7432 Young and Tim J. Hudson created while they were working for C2Net until
7434 [The OpenSSL Project]
7437 Changes between 0.9.0b and 0.9.1b [not released]
7439 *) Updated a few CA certificates under certs/
7442 *) Changed some BIGNUM api stuff.
7445 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
7446 DGUX x86, Linux Alpha, etc.
7449 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
7450 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
7454 *) Add -strparse option to asn1pars program which parses nested
7456 [Dr Stephen Henson <shenson@bigfoot.com>]
7458 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
7461 *) DSA fix for "ca" program.
7464 *) Added "-genkey" option to "dsaparam" program.
7467 *) Added RIPE MD160 (rmd160) message digest.
7470 *) Added -a (all) option to "ssleay version" command.
7473 *) Added PLATFORM define which is the id given to Configure.
7476 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
7479 *) Extended the ASN.1 parser routines.
7482 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
7485 *) Added a BN_CTX to the BN library.
7488 *) Fixed the weak key values in DES library
7491 *) Changed API in EVP library for cipher aliases.
7494 *) Added support for RC2/64bit cipher.
7497 *) Converted the lhash library to the crypto/mem.c functions.
7500 *) Added more recognized ASN.1 object ids.
7503 *) Added more RSA padding checks for SSL/TLS.
7506 *) Added BIO proxy/filter functionality.
7509 *) Added extra_certs to SSL_CTX which can be used
7510 send extra CA certificates to the client in the CA cert chain sending
7511 process. It can be configured with SSL_CTX_add_extra_chain_cert().
7514 *) Now Fortezza is denied in the authentication phase because
7515 this is key exchange mechanism is not supported by SSLeay at all.
7518 *) Additional PKCS1 checks.
7521 *) Support the string "TLSv1" for all TLS v1 ciphers.
7524 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
7525 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
7528 *) Fixed a few memory leaks.
7531 *) Fixed various code and comment typos.
7534 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
7535 bytes sent in the client random.
7536 [Edward Bishop <ebishop@spyglass.com>]