5 Changes between 0.9.8 and 0.9.9 [xx XXX xxxx]
7 *) Modify CRL distribution points extension code to print out previously
11 *) Add print only support for Issuing Distribution Point CRL extension.
14 Changes between 0.9.8 and 0.9.8a [XX xxx XXXX]
18 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
20 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
23 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
24 key into the same file any more.
27 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
30 *) Add -utf8 command line and config file option to 'ca'.
31 [Stefan <stf@udoma.org]
33 *) Removed the macro des_crypt(), as it seems to conflict with some
34 libraries. Use DES_crypt().
37 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
38 involves renaming the source and generated shared-libs for
39 both. The engines will accept the corrected or legacy ids
40 ('ncipher' and '4758_cca' respectively) when binding. NB,
41 this only applies when building 'shared'.
42 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
44 *) Add attribute functions to EVP_PKEY structure. Modify
45 PKCS12_create() to recognize a CSP name attribute and
46 use it. Make -CSP option work again in pkcs12 utility.
49 *) Add new functionality to the bn blinding code:
50 - automatic re-creation of the BN_BLINDING parameters after
51 a fixed number of uses (currently 32)
52 - add new function for parameter creation
53 - introduce flags to control the update behaviour of the
54 BN_BLINDING parameters
55 - hide BN_BLINDING structure
56 Add a second BN_BLINDING slot to the RSA structure to improve
57 performance when a single RSA object is shared among several
61 *) Add support for DTLS.
62 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
64 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
65 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
68 *) Remove buggy and incompletet DH cert support from
69 ssl/ssl_rsa.c and ssl/s3_both.c
72 *) Use SHA-1 instead of MD5 as the default digest algorithm for
73 the apps/openssl applications.
76 *) Compile clean with "-Wall -Wmissing-prototypes
77 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
78 DEBUG_SAFESTACK must also be set.
81 *) Change ./Configure so that certain algorithms can be disabled by default.
82 The new counterpiece to "no-xxx" is "enable-xxx".
84 The patented RC5 and MDC2 algorithms will now be disabled unless
85 "enable-rc5" and "enable-mdc2", respectively, are specified.
87 (IDEA remains enabled despite being patented. This is because IDEA
88 is frequently required for interoperability, and there is no license
89 fee for non-commercial use. As before, "no-idea" can be used to
90 avoid this algorithm.)
94 *) Add processing of proxy certificates (see RFC 3820). This work was
95 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
96 EGEE (Enabling Grids for E-science in Europe).
99 *) RC4 performance overhaul on modern architectures/implementations, such
100 as Intel P4, IA-64 and AMD64.
103 *) New utility extract-section.pl. This can be used specify an alternative
104 section number in a pod file instead of having to treat each file as
105 a separate case in Makefile. This can be done by adding two lines to the
108 =for comment openssl_section:XXX
110 The blank line is mandatory.
114 *) New arguments -certform, -keyform and -pass for s_client and s_server
115 to allow alternative format key and certificate files and passphrase
119 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
120 update associated structures and add various utility functions.
122 Add new policy related verify parameters, include policy checking in
123 standard verify code. Enhance 'smime' application with extra parameters
124 to support policy checking and print out.
127 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
128 Nehemiah processors. These extensions support AES encryption in hardware
129 as well as RNG (though RNG support is currently disabled).
130 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
132 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
135 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
136 [Andy Polyakov and a number of other people]
138 *) Improved PowerPC platform support. Most notably BIGNUM assembler
139 implementation contributed by IBM.
140 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
142 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
143 exponent rather than 'unsigned long'. There is a corresponding change to
144 the new 'rsa_keygen' element of the RSA_METHOD structure.
145 [Jelte Jansen, Geoff Thorpe]
147 *) Functionality for creating the initial serial number file is now
148 moved from CA.pl to the 'ca' utility with a new option -create_serial.
150 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
151 number file to 1, which is bound to cause problems. To avoid
152 the problems while respecting compatibility between different 0.9.7
153 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
154 CA.pl for serial number initialization. With the new release 0.9.8,
155 we can fix the problem directly in the 'ca' utility.)
158 *) Reduced header interdepencies by declaring more opaque objects in
159 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
160 give fewer recursive includes, which could break lazy source code - so
161 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
162 developers should define this symbol when building and using openssl to
163 ensure they track the recommended behaviour, interfaces, [etc], but
164 backwards-compatible behaviour prevails when this isn't defined.
167 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
170 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
171 This will generate a random key of the appropriate length based on the
172 cipher context. The EVP_CIPHER can provide its own random key generation
173 routine to support keys of a specific form. This is used in the des and
174 3des routines to generate a key of the correct parity. Update S/MIME
175 code to use new functions and hence generate correct parity DES keys.
176 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
177 valid (weak or incorrect parity).
180 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
181 as looking them up. This is useful when the verified structure may contain
182 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
183 present unless the new PKCS7_NO_CRL flag is asserted.
186 *) Extend ASN1 oid configuration module. It now additionally accepts the
189 shortName = some long name, 1.2.3.4
192 *) Reimplemented the BN_CTX implementation. There is now no more static
193 limitation on the number of variables it can handle nor the depth of the
194 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
195 information can now expand as required, and rather than having a single
196 static array of bignums, BN_CTX now uses a linked-list of such arrays
197 allowing it to expand on demand whilst maintaining the usefulness of
201 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
202 to allow all RSA operations to function using a single BN_CTX.
205 *) Preliminary support for certificate policy evaluation and checking. This
206 is initially intended to pass the tests outlined in "Conformance Testing
207 of Relying Party Client Certificate Path Processing Logic" v1.07.
210 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
211 remained unused and not that useful. A variety of other little bignum
212 tweaks and fixes have also been made continuing on from the audit (see
216 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
217 associated ASN1, EVP and SSL functions and old ASN1 macros.
220 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
221 and this should never fail. So the return value from the use of
222 BN_set_word() (which can fail due to needless expansion) is now deprecated;
223 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
226 *) BN_CTX_get() should return zero-valued bignums, providing the same
227 initialised value as BN_new().
228 [Geoff Thorpe, suggested by Ulf Möller]
230 *) Support for inhibitAnyPolicy certificate extension.
233 *) An audit of the BIGNUM code is underway, for which debugging code is
234 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
235 is considered valid when processing BIGNUMs, and causes execution to
236 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
237 further steps are taken to deliberately pollute unused data in BIGNUM
238 structures to try and expose faulty code further on. For now, openssl will
239 (in its default mode of operation) continue to tolerate the inconsistent
240 forms that it has tolerated in the past, but authors and packagers should
241 consider trying openssl and their own applications when compiled with
242 these debugging symbols defined. It will help highlight potential bugs in
243 their own code, and will improve the test coverage for OpenSSL itself. At
244 some point, these tighter rules will become openssl's default to improve
245 maintainability, though the assert()s and other overheads will remain only
246 in debugging configurations. See bn.h for more details.
247 [Geoff Thorpe, Nils Larsch, Ulf Möller]
249 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
250 that can only be obtained through BN_CTX_new() (which implicitly
251 initialises it). The presence of this function only made it possible
252 to overwrite an existing structure (and cause memory leaks).
255 *) Because of the callback-based approach for implementing LHASH as a
256 template type, lh_insert() adds opaque objects to hash-tables and
257 lh_doall() or lh_doall_arg() are typically used with a destructor callback
258 to clean up those corresponding objects before destroying the hash table
259 (and losing the object pointers). So some over-zealous constifications in
260 LHASH have been relaxed so that lh_insert() does not take (nor store) the
261 objects as "const" and the lh_doall[_arg] callback wrappers are not
262 prototyped to have "const" restrictions on the object pointers they are
263 given (and so aren't required to cast them away any more).
266 *) The tmdiff.h API was so ugly and minimal that our own timing utility
267 (speed) prefers to use its own implementation. The two implementations
268 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
269 its object type properly exposed (MS_TM) instead of casting to/from "char
270 *". This may still change yet if someone realises MS_TM and "ms_time_***"
271 aren't necessarily the greatest nomenclatures - but this is what was used
272 internally to the implementation so I've used that for now.
275 *) Ensure that deprecated functions do not get compiled when
276 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
277 the self-tests were still using deprecated key-generation functions so
278 these have been updated also.
281 *) Reorganise PKCS#7 code to separate the digest location functionality
282 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
283 New function PKCS7_set_digest() to set the digest type for PKCS#7
284 digestedData type. Add additional code to correctly generate the
285 digestedData type and add support for this type in PKCS7 initialization
289 *) New function PKCS7_set0_type_other() this initializes a PKCS7
290 structure of type "other".
293 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
294 sure the loop does correctly stop and breaking ("division by zero")
295 modulus operations are not performed. The (pre-generated) prime
296 table crypto/bn/bn_prime.h was already correct, but it could not be
297 re-generated on some platforms because of the "division by zero"
298 situation in the script.
299 [Ralf S. Engelschall]
301 *) Update support for ECC-based TLS ciphersuites according to
302 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
303 SHA-1 now is only used for "small" curves (where the
304 representation of a field element takes up to 24 bytes); for
305 larger curves, the field element resulting from ECDH is directly
306 used as premaster secret.
307 [Douglas Stebila (Sun Microsystems Laboratories)]
309 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
310 curve secp160r1 to the tests.
311 [Douglas Stebila (Sun Microsystems Laboratories)]
313 *) Add the possibility to load symbols globally with DSO.
314 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
316 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
317 control of the error stack.
320 *) Add support for STORE in ENGINE.
323 *) Add the STORE type. The intention is to provide a common interface
324 to certificate and key stores, be they simple file-based stores, or
325 HSM-type store, or LDAP stores, or...
326 NOTE: The code is currently UNTESTED and isn't really used anywhere.
329 *) Add a generic structure called OPENSSL_ITEM. This can be used to
330 pass a list of arguments to any function as well as provide a way
331 for a function to pass data back to the caller.
334 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
335 works like BUF_strdup() but can be used to duplicate a portion of
336 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
340 *) Add the function sk_find_ex() which works like sk_find(), but will
341 return an index to an element even if an exact match couldn't be
342 found. The index is guaranteed to point at the element where the
343 searched-for key would be inserted to preserve sorting order.
346 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
347 takes an extra flags argument for optional functionality. Currently,
348 the following flags are defined:
350 OBJ_BSEARCH_VALUE_ON_NOMATCH
351 This one gets OBJ_bsearch_ex() to return a pointer to the first
352 element where the comparing function returns a negative or zero
355 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
356 This one gets OBJ_bsearch_ex() to return a pointer to the first
357 element where the comparing function returns zero. This is useful
358 if there are more than one element where the comparing function
362 *) Make it possible to create self-signed certificates with 'openssl ca'
363 in such a way that the self-signed certificate becomes part of the
364 CA database and uses the same mechanisms for serial number generation
365 as all other certificate signing. The new flag '-selfsign' enables
366 this functionality. Adapt CA.sh and CA.pl.in.
369 *) Add functionality to check the public key of a certificate request
370 against a given private. This is useful to check that a certificate
371 request can be signed by that key (self-signing).
374 *) Make it possible to have multiple active certificates with the same
375 subject in the CA index file. This is done only if the keyword
376 'unique_subject' is set to 'no' in the main CA section (default
377 if 'CA_default') of the configuration file. The value is saved
378 with the database itself in a separate index attribute file,
379 named like the index file with '.attr' appended to the name.
382 *) Generate muti valued AVAs using '+' notation in config files for
386 *) Support for nameConstraints certificate extension.
389 *) Support for policyConstraints certificate extension.
392 *) Support for policyMappings certificate extension.
395 *) Make sure the default DSA_METHOD implementation only uses its
396 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
397 and change its own handlers to be NULL so as to remove unnecessary
398 indirection. This lets alternative implementations fallback to the
399 default implementation more easily.
402 *) Support for directoryName in GeneralName related extensions
406 *) Make it possible to link applications using Makefile.shared.
407 Make that possible even when linking against static libraries!
410 *) Support for single pass processing for S/MIME signing. This now
411 means that S/MIME signing can be done from a pipe, in addition
412 cleartext signing (multipart/signed type) is effectively streaming
413 and the signed data does not need to be all held in memory.
415 This is done with a new flag PKCS7_STREAM. When this flag is set
416 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
417 is done after the data is output (and digests calculated) in
421 *) Add full support for -rpath/-R, both in shared libraries and
422 applications, at least on the platforms where it's known how
426 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
427 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
428 will now compute a table of multiples of the generator that
429 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
430 faster (notably in the case of a single point multiplication,
432 [Nils Larsch, Bodo Moeller]
434 *) IPv6 support for certificate extensions. The various extensions
435 which use the IP:a.b.c.d can now take IPv6 addresses using the
436 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
440 *) Added an ENGINE that implements RSA by performing private key
441 exponentiations with the GMP library. The conversions to and from
442 GMP's mpz_t format aren't optimised nor are any montgomery forms
443 cached, and on x86 it appears OpenSSL's own performance has caught up.
444 However there are likely to be other architectures where GMP could
445 provide a boost. This ENGINE is not built in by default, but it can be
446 specified at Configure time and should be accompanied by the necessary
447 linker additions, eg;
448 ./config -DOPENSSL_USE_GMP -lgmp
451 *) "openssl engine" will not display ENGINE/DSO load failure errors when
452 testing availability of engines with "-t" - the old behaviour is
453 produced by increasing the feature's verbosity with "-tt".
456 *) ECDSA routines: under certain error conditions uninitialized BN objects
457 could be freed. Solution: make sure initialization is performed early
458 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
462 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
463 and DH_METHOD (eg. by ENGINE implementations) to override the normal
464 software implementations. For DSA and DH, parameter generation can
465 also be overriden by providing the appropriate method callbacks.
468 *) Change the "progress" mechanism used in key-generation and
469 primality testing to functions that take a new BN_GENCB pointer in
470 place of callback/argument pairs. The new API functions have "_ex"
471 postfixes and the older functions are reimplemented as wrappers for
472 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
473 declarations of the old functions to help (graceful) attempts to
474 migrate to the new functions. Also, the new key-generation API
475 functions operate on a caller-supplied key-structure and return
476 success/failure rather than returning a key or NULL - this is to
477 help make "keygen" another member function of RSA_METHOD etc.
479 Example for using the new callback interface:
481 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
485 BN_GENCB_set(&my_cb, my_callback, my_arg);
487 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
488 /* For the meaning of a, b in calls to my_callback(), see the
489 * documentation of the function that calls the callback.
490 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
491 * my_callback should return 1 if it wants BN_is_prime_ex()
492 * to continue, or 0 to stop.
497 *) Change the ZLIB compression method to be stateful, and make it
498 available to TLS with the number defined in
499 draft-ietf-tls-compression-04.txt.
502 *) Add the ASN.1 structures and functions for CertificatePair, which
503 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
505 CertificatePair ::= SEQUENCE {
506 forward [0] Certificate OPTIONAL,
507 reverse [1] Certificate OPTIONAL,
508 -- at least one of the pair shall be present -- }
510 Also implement the PEM functions to read and write certificate
511 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
513 This needed to be defined, mostly for the sake of the LDAP
514 attribute crossCertificatePair, but may prove useful elsewhere as
518 *) Make it possible to inhibit symlinking of shared libraries in
519 Makefile.shared, for Cygwin's sake.
522 *) Extend the BIGNUM API by creating a function
523 void BN_set_negative(BIGNUM *a, int neg);
524 and a macro that behave like
525 int BN_is_negative(const BIGNUM *a);
527 to avoid the need to access 'a->neg' directly in applications.
530 *) Implement fast modular reduction for pseudo-Mersenne primes
531 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
532 EC_GROUP_new_curve_GFp() will now automatically use this
534 [Nils Larsch <nla@trustcenter.de>]
536 *) Add new lock type (CRYPTO_LOCK_BN).
539 *) Change the ENGINE framework to automatically load engines
540 dynamically from specific directories unless they could be
541 found to already be built in or loaded. Move all the
542 current engines except for the cryptodev one to a new
544 The engines in engines/ are built as shared libraries if
545 the "shared" options was given to ./Configure or ./config.
546 Otherwise, they are inserted in libcrypto.a.
547 /usr/local/ssl/engines is the default directory for dynamic
548 engines, but that can be overriden at configure time through
549 the usual use of --prefix and/or --openssldir, and at run
550 time with the environment variable OPENSSL_ENGINES.
551 [Geoff Thorpe and Richard Levitte]
553 *) Add Makefile.shared, a helper makefile to build shared
554 libraries. Addapt Makefile.org.
557 *) Add version info to Win32 DLLs.
558 [Peter 'Luna' Runestig" <peter@runestig.com>]
560 *) Add new 'medium level' PKCS#12 API. Certificates and keys
561 can be added using this API to created arbitrary PKCS#12
562 files while avoiding the low level API.
564 New options to PKCS12_create(), key or cert can be NULL and
565 will then be omitted from the output file. The encryption
566 algorithm NIDs can be set to -1 for no encryption, the mac
567 iteration count can be set to 0 to omit the mac.
569 Enhance pkcs12 utility by making the -nokeys and -nocerts
570 options work when creating a PKCS#12 file. New option -nomac
571 to omit the mac, NONE can be set for an encryption algorithm.
572 New code is modified to use the enhanced PKCS12_create()
573 instead of the low level API.
576 *) Extend ASN1 encoder to support indefinite length constructed
577 encoding. This can output sequences tags and octet strings in
578 this form. Modify pk7_asn1.c to support indefinite length
579 encoding. This is experimental and needs additional code to
580 be useful, such as an ASN1 bio and some enhanced streaming
583 Extend template encode functionality so that tagging is passed
584 down to the template encoder.
587 *) Let 'openssl req' fail if an argument to '-newkey' is not
588 recognized instead of using RSA as a default.
591 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
592 As these are not official, they are not included in "ALL";
593 the "ECCdraft" ciphersuite group alias can be used to select them.
594 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
596 *) Add ECDH engine support.
597 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
599 *) Add ECDH in new directory crypto/ecdh/.
600 [Douglas Stebila (Sun Microsystems Laboratories)]
602 *) Let BN_rand_range() abort with an error after 100 iterations
603 without success (which indicates a broken PRNG).
606 *) Change BN_mod_sqrt() so that it verifies that the input value
607 is really the square of the return value. (Previously,
608 BN_mod_sqrt would show GIGO behaviour.)
611 *) Add named elliptic curves over binary fields from X9.62, SECG,
612 and WAP/WTLS; add OIDs that were still missing.
614 [Sheueling Chang Shantz and Douglas Stebila
615 (Sun Microsystems Laboratories)]
617 *) Extend the EC library for elliptic curves over binary fields
618 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
621 EC_GF2m_simple_method
625 EC_GROUP_new_curve_GF2m
626 EC_GROUP_set_curve_GF2m
627 EC_GROUP_get_curve_GF2m
628 EC_POINT_set_affine_coordinates_GF2m
629 EC_POINT_get_affine_coordinates_GF2m
630 EC_POINT_set_compressed_coordinates_GF2m
632 Point compression for binary fields is disabled by default for
633 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
636 As binary polynomials are represented as BIGNUMs, various members
637 of the EC_GROUP and EC_POINT data structures can be shared
638 between the implementations for prime fields and binary fields;
639 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
640 are essentially identical to their ..._GFp counterparts.
641 (For simplicity, the '..._GFp' prefix has been dropped from
642 various internal method names.)
644 An internal 'field_div' method (similar to 'field_mul' and
645 'field_sqr') has been added; this is used only for binary fields.
647 [Sheueling Chang Shantz and Douglas Stebila
648 (Sun Microsystems Laboratories)]
650 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
651 through methods ('mul', 'precompute_mult').
653 The generic implementations (now internally called 'ec_wNAF_mul'
654 and 'ec_wNAF_precomputed_mult') remain the default if these
655 methods are undefined.
657 [Sheueling Chang Shantz and Douglas Stebila
658 (Sun Microsystems Laboratories)]
660 *) New function EC_GROUP_get_degree, which is defined through
661 EC_METHOD. For curves over prime fields, this returns the bit
662 length of the modulus.
664 [Sheueling Chang Shantz and Douglas Stebila
665 (Sun Microsystems Laboratories)]
667 *) New functions EC_GROUP_dup, EC_POINT_dup.
668 (These simply call ..._new and ..._copy).
670 [Sheueling Chang Shantz and Douglas Stebila
671 (Sun Microsystems Laboratories)]
673 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
674 Polynomials are represented as BIGNUMs (where the sign bit is not
675 used) in the following functions [macros]:
678 BN_GF2m_sub [= BN_GF2m_add]
679 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
680 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
681 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
683 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
684 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
685 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
686 BN_GF2m_cmp [= BN_ucmp]
688 (Note that only the 'mod' functions are actually for fields GF(2^m).
689 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
691 For some functions, an the irreducible polynomial defining a
692 field can be given as an 'unsigned int[]' with strictly
693 decreasing elements giving the indices of those bits that are set;
694 i.e., p[] represents the polynomial
695 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
697 p[0] > p[1] > ... > p[k] = 0.
698 This applies to the following functions:
703 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
704 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
707 BN_GF2m_mod_solve_quad_arr
711 Conversion can be performed by the following functions:
716 bntest.c has additional tests for binary polynomial arithmetic.
718 Two implementations for BN_GF2m_mod_div() are available.
719 The default algorithm simply uses BN_GF2m_mod_inv() and
720 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
721 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
722 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
724 [Sheueling Chang Shantz and Douglas Stebila
725 (Sun Microsystems Laboratories)]
727 *) Add new error code 'ERR_R_DISABLED' that can be used when some
728 functionality is disabled at compile-time.
729 [Douglas Stebila <douglas.stebila@sun.com>]
731 *) Change default behaviour of 'openssl asn1parse' so that more
732 information is visible when viewing, e.g., a certificate:
734 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
735 mode the content of non-printable OCTET STRINGs is output in a
736 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
737 avoid the appearance of a printable string.
738 [Nils Larsch <nla@trustcenter.de>]
740 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
742 EC_GROUP_set_asn1_flag()
743 EC_GROUP_get_asn1_flag()
744 EC_GROUP_set_point_conversion_form()
745 EC_GROUP_get_point_conversion_form()
746 These control ASN1 encoding details:
747 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
748 has been set to OPENSSL_EC_NAMED_CURVE.
749 - Points are encoded in uncompressed form by default; options for
750 asn1_for are as for point2oct, namely
751 POINT_CONVERSION_COMPRESSED
752 POINT_CONVERSION_UNCOMPRESSED
753 POINT_CONVERSION_HYBRID
755 Also add 'seed' and 'seed_len' members to EC_GROUP with access
759 EC_GROUP_get_seed_len()
760 This is used only for ASN1 purposes (so far).
761 [Nils Larsch <nla@trustcenter.de>]
763 *) Add 'field_type' member to EC_METHOD, which holds the NID
764 of the appropriate field type OID. The new function
765 EC_METHOD_get_field_type() returns this value.
766 [Nils Larsch <nla@trustcenter.de>]
773 providing useful interfaces to EC_POINT_point2oct() and
774 EC_POINT_oct2point().
775 [Nils Larsch <nla@trustcenter.de>]
777 *) Change internals of the EC library so that the functions
778 EC_GROUP_set_generator()
779 EC_GROUP_get_generator()
781 EC_GROUP_get_cofactor()
782 are implemented directly in crypto/ec/ec_lib.c and not dispatched
783 to methods, which would lead to unnecessary code duplication when
784 adding different types of curves.
785 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
787 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
788 arithmetic, and such that modified wNAFs are generated
789 (which avoid length expansion in many cases).
792 *) Add a function EC_GROUP_check_discriminant() (defined via
793 EC_METHOD) that verifies that the curve discriminant is non-zero.
795 Add a function EC_GROUP_check() that makes some sanity tests
796 on a EC_GROUP, its generator and order. This includes
797 EC_GROUP_check_discriminant().
798 [Nils Larsch <nla@trustcenter.de>]
800 *) Add ECDSA in new directory crypto/ecdsa/.
802 Add applications 'openssl ecparam' and 'openssl ecdsa'
803 (these are based on 'openssl dsaparam' and 'openssl dsa').
805 ECDSA support is also included in various other files across the
806 library. Most notably,
807 - 'openssl req' now has a '-newkey ecdsa:file' option;
808 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
809 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
810 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
811 them suitable for ECDSA where domain parameters must be
812 extracted before the specific public key;
813 - ECDSA engine support has been added.
814 [Nils Larsch <nla@trustcenter.de>]
816 *) Include some named elliptic curves, and add OIDs from X9.62,
817 SECG, and WAP/WTLS. Each curve can be obtained from the new
819 EC_GROUP_new_by_curve_name(),
820 and the list of available named curves can be obtained with
821 EC_get_builtin_curves().
822 Also add a 'curve_name' member to EC_GROUP objects, which can be
824 EC_GROUP_set_curve_name()
825 EC_GROUP_get_curve_name()
826 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
828 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
829 was actually never needed) and in BN_mul(). The removal in BN_mul()
830 required a small change in bn_mul_part_recursive() and the addition
831 of the functions bn_cmp_part_words(), bn_sub_part_words() and
832 bn_add_part_words(), which do the same thing as bn_cmp_words(),
833 bn_sub_words() and bn_add_words() except they take arrays with
837 Changes between 0.9.7g and 0.9.7h [XX xxx XXXX]
839 *) Minimal support for X9.31 signatures and PSS padding modes. This is
840 mainly for FIPS compliance and not fully integrated at this stage.
843 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
844 the exponentiation using a fixed-length exponent. (Otherwise,
845 the information leaked through timing could expose the secret key
846 after many signatures; cf. Bleichenbacher's attack on DSA with
850 *) Make a new fixed-window mod_exp implementation the default for
851 RSA, DSA, and DH private-key operations so that the sequence of
852 squares and multiplies and the memory access pattern are
853 independent of the particular secret key. This will mitigate
854 cache-timing and potential related attacks.
856 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
857 and this is automatically used by BN_mod_exp_mont() if the new flag
858 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
859 will use this BN flag for private exponents unless the flag
860 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
861 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
863 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
865 *) Change the client implementation for SSLv23_method() and
866 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
867 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
868 (Previously, the SSL 2.0 backwards compatible Client Hello
869 message format would be used even with SSL_OP_NO_SSLv2.)
872 *) Add support for smime-type MIME parameter in S/MIME messages which some
876 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
877 a threadsafe manner. Modify rsa code to use new function and add calls
878 to dsa and dh code (which had race conditions before).
881 *) Include the fixed error library code in the C error file definitions
882 instead of fixing them up at runtime. This keeps the error code
886 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
888 *) Fixes for newer kerberos headers. NB: the casts are needed because
889 the 'length' field is signed on one version and unsigned on another
890 with no (?) obvious way to tell the difference, without these VC++
891 complains. Also the "definition" of FAR (blank) is no longer included
892 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
893 some needed definitions.
896 *) Undo Cygwin change.
899 *) Added support for proxy certificates according to RFC 3820.
900 Because they may be a security thread to unaware applications,
901 they must be explicitely allowed in run-time. See
902 docs/HOWTO/proxy_certificates.txt for further information.
905 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
907 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
908 server and client random values. Previously
909 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
910 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
912 This change has negligible security impact because:
914 1. Server and client random values still have 24 bytes of pseudo random
917 2. Server and client random values are sent in the clear in the initial
920 3. The master secret is derived using the premaster secret (48 bytes in
921 size for static RSA ciphersuites) as well as client server and random
924 The OpenSSL team would like to thank the UK NISCC for bringing this issue
927 [Stephen Henson, reported by UK NISCC]
929 *) Use Windows randomness collection on Cygwin.
932 *) Fix hang in EGD/PRNGD query when communication socket is closed
933 prematurely by EGD/PRNGD.
934 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
936 *) Prompt for pass phrases when appropriate for PKCS12 input format.
939 *) Back-port of selected performance improvements from development
940 branch, as well as improved support for PowerPC platforms.
943 *) Add lots of checks for memory allocation failure, error codes to indicate
944 failure and freeing up memory if a failure occurs.
945 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
947 *) Add new -passin argument to dgst.
950 *) Perform some character comparisons of different types in X509_NAME_cmp:
951 this is needed for some certificates that reencode DNs into UTF8Strings
952 (in violation of RFC3280) and can't or wont issue name rollover
956 *) Make an explicit check during certificate validation to see that
957 the CA setting in each certificate on the chain is correct. As a
958 side effect always do the following basic checks on extensions,
959 not just when there's an associated purpose to the check:
961 - if there is an unhandled critical extension (unless the user
962 has chosen to ignore this fault)
963 - if the path length has been exceeded (if one is set at all)
964 - that certain extensions fit the associated purpose (if one has
968 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
970 *) Avoid a race condition when CRLs are checked in a multi threaded
971 environment. This would happen due to the reordering of the revoked
972 entries during signature checking and serial number lookup. Now the
973 encoding is cached and the serial number sort performed under a lock.
974 Add new STACK function sk_is_sorted().
977 *) Add Delta CRL to the extension code.
980 *) Various fixes to s3_pkt.c so alerts are sent properly.
981 [David Holmes <d.holmes@f5.com>]
983 *) Reduce the chances of duplicate issuer name and serial numbers (in
984 violation of RFC3280) using the OpenSSL certificate creation utilities.
985 This is done by creating a random 64 bit value for the initial serial
986 number when a serial number file is created or when a self signed
987 certificate is created using 'openssl req -x509'. The initial serial
988 number file is created using 'openssl x509 -next_serial' in CA.pl
989 rather than being initialized to 1.
992 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
994 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
995 by using the Codenomicon TLS Test Tool (CAN-2004-0079)
996 [Joe Orton, Steve Henson]
998 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
1000 [Joe Orton, Steve Henson]
1002 *) Make it possible to have multiple active certificates with the same
1003 subject in the CA index file. This is done only if the keyword
1004 'unique_subject' is set to 'no' in the main CA section (default
1005 if 'CA_default') of the configuration file. The value is saved
1006 with the database itself in a separate index attribute file,
1007 named like the index file with '.attr' appended to the name.
1010 *) X509 verify fixes. Disable broken certificate workarounds when
1011 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
1012 keyUsage extension present. Don't accept CRLs with unhandled critical
1013 extensions: since verify currently doesn't process CRL extensions this
1014 rejects a CRL with *any* critical extensions. Add new verify error codes
1018 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
1019 A clarification of RFC2560 will require the use of OCTET STRINGs and
1020 some implementations cannot handle the current raw format. Since OpenSSL
1021 copies and compares OCSP nonces as opaque blobs without any attempt at
1022 parsing them this should not create any compatibility issues.
1025 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
1026 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
1027 this HMAC (and other) operations are several times slower than OpenSSL
1031 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
1032 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1034 *) Use the correct content when signing type "other".
1037 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
1039 *) Fix various bugs revealed by running the NISCC test suite:
1041 Stop out of bounds reads in the ASN1 code when presented with
1042 invalid tags (CAN-2003-0543 and CAN-2003-0544).
1044 Free up ASN1_TYPE correctly if ANY type is invalid (CAN-2003-0545).
1046 If verify callback ignores invalid public key errors don't try to check
1047 certificate signature with the NULL public key.
1051 *) New -ignore_err option in ocsp application to stop the server
1052 exiting on the first error in a request.
1055 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
1056 if the server requested one: as stated in TLS 1.0 and SSL 3.0
1060 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
1061 extra data after the compression methods not only for TLS 1.0
1062 but also for SSL 3.0 (as required by the specification).
1063 [Bodo Moeller; problem pointed out by Matthias Loepfe]
1065 *) Change X509_certificate_type() to mark the key as exported/exportable
1066 when it's 512 *bits* long, not 512 bytes.
1069 *) Change AES_cbc_encrypt() so it outputs exact multiple of
1070 blocks during encryption.
1073 *) Various fixes to base64 BIO and non blocking I/O. On write
1074 flushes were not handled properly if the BIO retried. On read
1075 data was not being buffered properly and had various logic bugs.
1076 This also affects blocking I/O when the data being decoded is a
1080 *) Various S/MIME bugfixes and compatibility changes:
1081 output correct application/pkcs7 MIME type if
1082 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
1083 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
1084 of files as .eml work). Correctly handle very long lines in MIME
1088 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
1090 *) Countermeasure against the Klima-Pokorny-Rosa extension of
1091 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
1092 a protocol version number mismatch like a decryption error
1093 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
1096 *) Turn on RSA blinding by default in the default implementation
1097 to avoid a timing attack. Applications that don't want it can call
1098 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
1099 They would be ill-advised to do so in most cases.
1100 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
1102 *) Change RSA blinding code so that it works when the PRNG is not
1103 seeded (in this case, the secret RSA exponent is abused as
1104 an unpredictable seed -- if it is not unpredictable, there
1105 is no point in blinding anyway). Make RSA blinding thread-safe
1106 by remembering the creator's thread ID in rsa->blinding and
1107 having all other threads use local one-time blinding factors
1108 (this requires more computation than sharing rsa->blinding, but
1109 avoids excessive locking; and if an RSA object is not shared
1110 between threads, blinding will still be very fast).
1113 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
1114 ENGINE as defaults for all supported algorithms irrespective of
1115 the 'flags' parameter. 'flags' is now honoured, so applications
1116 should make sure they are passing it correctly.
1119 *) Target "mingw" now allows native Windows code to be generated in
1120 the Cygwin environment as well as with the MinGW compiler.
1123 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
1125 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
1126 via timing by performing a MAC computation even if incorrrect
1127 block cipher padding has been found. This is a countermeasure
1128 against active attacks where the attacker has to distinguish
1129 between bad padding and a MAC verification error. (CAN-2003-0078)
1131 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
1132 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
1133 Martin Vuagnoux (EPFL, Ilion)]
1135 *) Make the no-err option work as intended. The intention with no-err
1136 is not to have the whole error stack handling routines removed from
1137 libcrypto, it's only intended to remove all the function name and
1138 reason texts, thereby removing some of the footprint that may not
1139 be interesting if those errors aren't displayed anyway.
1141 NOTE: it's still possible for any application or module to have it's
1142 own set of error texts inserted. The routines are there, just not
1143 used by default when no-err is given.
1146 *) Add support for FreeBSD on IA64.
1147 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
1149 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
1150 Kerberos function mit_des_cbc_cksum(). Before this change,
1151 the value returned by DES_cbc_cksum() was like the one from
1152 mit_des_cbc_cksum(), except the bytes were swapped.
1153 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
1155 *) Allow an application to disable the automatic SSL chain building.
1156 Before this a rather primitive chain build was always performed in
1157 ssl3_output_cert_chain(): an application had no way to send the
1158 correct chain if the automatic operation produced an incorrect result.
1160 Now the chain builder is disabled if either:
1162 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
1164 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
1166 The reasoning behind this is that an application would not want the
1167 auto chain building to take place if extra chain certificates are
1168 present and it might also want a means of sending no additional
1169 certificates (for example the chain has two certificates and the
1173 *) Add the possibility to build without the ENGINE framework.
1174 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1176 *) Under Win32 gmtime() can return NULL: check return value in
1177 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
1180 *) DSA routines: under certain error conditions uninitialized BN objects
1181 could be freed. Solution: make sure initialization is performed early
1182 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
1183 Nils Larsch <nla@trustcenter.de> via PR#459)
1186 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
1187 checked on reconnect on the client side, therefore session resumption
1188 could still fail with a "ssl session id is different" error. This
1189 behaviour is masked when SSL_OP_ALL is used due to
1190 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
1191 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1192 followup to PR #377.
1195 *) IA-32 assembler support enhancements: unified ELF targets, support
1196 for SCO/Caldera platforms, fix for Cygwin shared build.
1199 *) Add support for FreeBSD on sparc64. As a consequence, support for
1200 FreeBSD on non-x86 processors is separate from x86 processors on
1201 the config script, much like the NetBSD support.
1202 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
1204 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
1206 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
1209 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
1210 code (06) was taken as the first octet of the session ID and the last
1211 octet was ignored consequently. As a result SSLv2 client side session
1212 caching could not have worked due to the session ID mismatch between
1214 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1218 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
1219 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
1223 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
1224 seems that in spite of existing for more than a year, many application
1225 author have done nothing to provide the necessary callbacks, which
1226 means that this particular engine will not work properly anywhere.
1227 This is a very unfortunate situation which forces us, in the name
1228 of usability, to give the hw_ncipher.c a static lock, which is part
1230 NOTE: This is for the 0.9.7 series ONLY. This hack will never
1231 appear in 0.9.8 or later. We EXPECT application authors to have
1232 dealt properly with this when 0.9.8 is released (unless we actually
1233 make such changes in the libcrypto locking code that changes will
1234 have to be made anyway).
1237 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
1238 octets have been read, EOF or an error occurs. Without this change
1239 some truncated ASN1 structures will not produce an error.
1242 *) Disable Heimdal support, since it hasn't been fully implemented.
1243 Still give the possibility to force the use of Heimdal, but with
1244 warnings and a request that patches get sent to openssl-dev.
1247 *) Add the VC-CE target, introduce the WINCE sysname, and add
1248 INSTALL.WCE and appropriate conditionals to make it build.
1249 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1251 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
1252 cygssl-x.y.z.dll, where x, y and z are the major, minor and
1253 edit numbers of the version.
1254 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
1256 *) Introduce safe string copy and catenation functions
1257 (BUF_strlcpy() and BUF_strlcat()).
1258 [Ben Laurie (CHATS) and Richard Levitte]
1260 *) Avoid using fixed-size buffers for one-line DNs.
1261 [Ben Laurie (CHATS)]
1263 *) Add BUF_MEM_grow_clean() to avoid information leakage when
1264 resizing buffers containing secrets, and use where appropriate.
1265 [Ben Laurie (CHATS)]
1267 *) Avoid using fixed size buffers for configuration file location.
1268 [Ben Laurie (CHATS)]
1270 *) Avoid filename truncation for various CA files.
1271 [Ben Laurie (CHATS)]
1273 *) Use sizeof in preference to magic numbers.
1274 [Ben Laurie (CHATS)]
1276 *) Avoid filename truncation in cert requests.
1277 [Ben Laurie (CHATS)]
1279 *) Add assertions to check for (supposedly impossible) buffer
1281 [Ben Laurie (CHATS)]
1283 *) Don't cache truncated DNS entries in the local cache (this could
1284 potentially lead to a spoofing attack).
1285 [Ben Laurie (CHATS)]
1287 *) Fix various buffers to be large enough for hex/decimal
1288 representations in a platform independent manner.
1289 [Ben Laurie (CHATS)]
1291 *) Add CRYPTO_realloc_clean() to avoid information leakage when
1292 resizing buffers containing secrets, and use where appropriate.
1293 [Ben Laurie (CHATS)]
1295 *) Add BIO_indent() to avoid much slightly worrying code to do
1297 [Ben Laurie (CHATS)]
1299 *) Convert sprintf()/BIO_puts() to BIO_printf().
1300 [Ben Laurie (CHATS)]
1302 *) buffer_gets() could terminate with the buffer only half
1304 [Ben Laurie (CHATS)]
1306 *) Add assertions to prevent user-supplied crypto functions from
1307 overflowing internal buffers by having large block sizes, etc.
1308 [Ben Laurie (CHATS)]
1310 *) New OPENSSL_assert() macro (similar to assert(), but enabled
1312 [Ben Laurie (CHATS)]
1314 *) Eliminate unused copy of key in RC4.
1315 [Ben Laurie (CHATS)]
1317 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
1318 [Ben Laurie (CHATS)]
1320 *) Fix off-by-one error in EGD path.
1321 [Ben Laurie (CHATS)]
1323 *) If RANDFILE path is too long, ignore instead of truncating.
1324 [Ben Laurie (CHATS)]
1326 *) Eliminate unused and incorrectly sized X.509 structure
1328 [Ben Laurie (CHATS)]
1330 *) Eliminate unused and dangerous function knumber().
1331 [Ben Laurie (CHATS)]
1333 *) Eliminate unused and dangerous structure, KSSL_ERR.
1334 [Ben Laurie (CHATS)]
1336 *) Protect against overlong session ID context length in an encoded
1337 session object. Since these are local, this does not appear to be
1339 [Ben Laurie (CHATS)]
1341 *) Change from security patch (see 0.9.6e below) that did not affect
1342 the 0.9.6 release series:
1344 Remote buffer overflow in SSL3 protocol - an attacker could
1345 supply an oversized master key in Kerberos-enabled versions.
1347 [Ben Laurie (CHATS)]
1349 *) Change the SSL kerb5 codes to match RFC 2712.
1352 *) Make -nameopt work fully for req and add -reqopt switch.
1353 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
1355 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
1356 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
1358 *) Make sure tests can be performed even if the corresponding algorithms
1359 have been removed entirely. This was also the last step to make
1360 OpenSSL compilable with DJGPP under all reasonable conditions.
1361 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
1363 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
1364 to allow version independent disabling of normally unselected ciphers,
1365 which may be activated as a side-effect of selecting a single cipher.
1367 (E.g., cipher list string "RSA" enables ciphersuites that are left
1368 out of "ALL" because they do not provide symmetric encryption.
1369 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
1370 [Lutz Jaenicke, Bodo Moeller]
1372 *) Add appropriate support for separate platform-dependent build
1373 directories. The recommended way to make a platform-dependent
1374 build directory is the following (tested on Linux), maybe with
1377 # Place yourself outside of the OpenSSL source tree. In
1378 # this example, the environment variable OPENSSL_SOURCE
1379 # is assumed to contain the absolute OpenSSL source directory.
1380 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
1381 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
1382 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
1383 mkdir -p `dirname $F`
1384 ln -s $OPENSSL_SOURCE/$F $F
1387 To be absolutely sure not to disturb the source tree, a "make clean"
1388 is a good thing. If it isn't successfull, don't worry about it,
1389 it probably means the source directory is very clean.
1392 *) Make sure any ENGINE control commands make local copies of string
1393 pointers passed to them whenever necessary. Otherwise it is possible
1394 the caller may have overwritten (or deallocated) the original string
1395 data when a later ENGINE operation tries to use the stored values.
1396 [Götz Babin-Ebell <babinebell@trustcenter.de>]
1398 *) Improve diagnostics in file reading and command-line digests.
1399 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
1401 *) Add AES modes CFB and OFB to the object database. Correct an
1402 error in AES-CFB decryption.
1405 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
1406 allows existing EVP_CIPHER_CTX structures to be reused after
1407 calling EVP_*Final(). This behaviour is used by encryption
1408 BIOs and some applications. This has the side effect that
1409 applications must explicitly clean up cipher contexts with
1410 EVP_CIPHER_CTX_cleanup() or they will leak memory.
1413 *) Check the values of dna and dnb in bn_mul_recursive before calling
1414 bn_mul_comba (a non zero value means the a or b arrays do not contain
1415 n2 elements) and fallback to bn_mul_normal if either is not zero.
1418 *) Fix escaping of non-ASCII characters when using the -subj option
1419 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
1422 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
1423 form for "surname", serialNumber has no short form.
1424 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
1425 therefore remove "mail" short name for "internet 7".
1426 The OID for unique identifiers in X509 certificates is
1427 x500UniqueIdentifier, not uniqueIdentifier.
1428 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
1431 *) Add an "init" command to the ENGINE config module and auto initialize
1432 ENGINEs. Without any "init" command the ENGINE will be initialized
1433 after all ctrl commands have been executed on it. If init=1 the
1434 ENGINE is initailized at that point (ctrls before that point are run
1435 on the uninitialized ENGINE and after on the initialized one). If
1436 init=0 then the ENGINE will not be iniatialized at all.
1439 *) Fix the 'app_verify_callback' interface so that the user-defined
1440 argument is actually passed to the callback: In the
1441 SSL_CTX_set_cert_verify_callback() prototype, the callback
1442 declaration has been changed from
1445 int (*cb)(X509_STORE_CTX *,void *);
1446 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
1447 i=s->ctx->app_verify_callback(&ctx)
1448 has been changed into
1449 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
1451 To update applications using SSL_CTX_set_cert_verify_callback(),
1452 a dummy argument can be added to their callback functions.
1453 [D. K. Smetters <smetters@parc.xerox.com>]
1455 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
1456 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
1458 *) Add and OPENSSL_LOAD_CONF define which will cause
1459 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
1460 This allows older applications to transparently support certain
1461 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
1462 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
1463 load the config file and OPENSSL_add_all_algorithms_conf() which will
1464 always load it have also been added.
1467 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
1468 Adjust NIDs and EVP layer.
1469 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
1471 *) Config modules support in openssl utility.
1473 Most commands now load modules from the config file,
1474 though in a few (such as version) this isn't done
1475 because it couldn't be used for anything.
1477 In the case of ca and req the config file used is
1478 the same as the utility itself: that is the -config
1479 command line option can be used to specify an
1483 *) Move default behaviour from OPENSSL_config(). If appname is NULL
1484 use "openssl_conf" if filename is NULL use default openssl config file.
1487 *) Add an argument to OPENSSL_config() to allow the use of an alternative
1488 config section name. Add a new flag to tolerate a missing config file
1489 and move code to CONF_modules_load_file().
1492 *) Support for crypto accelerator cards from Accelerated Encryption
1493 Processing, www.aep.ie. (Use engine 'aep')
1494 The support was copied from 0.9.6c [engine] and adapted/corrected
1495 to work with the new engine framework.
1496 [AEP Inc. and Richard Levitte]
1498 *) Support for SureWare crypto accelerator cards from Baltimore
1499 Technologies. (Use engine 'sureware')
1500 The support was copied from 0.9.6c [engine] and adapted
1501 to work with the new engine framework.
1504 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
1505 make the newer ENGINE framework commands for the CHIL engine work.
1506 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
1508 *) Make it possible to produce shared libraries on ReliantUNIX.
1509 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
1511 *) Add the configuration target debug-linux-ppro.
1512 Make 'openssl rsa' use the general key loading routines
1513 implemented in apps.c, and make those routines able to
1514 handle the key format FORMAT_NETSCAPE and the variant
1516 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
1518 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
1519 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
1521 *) Add -keyform to rsautl, and document -engine.
1522 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
1524 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
1525 BIO_R_NO_SUCH_FILE error code rather than the generic
1526 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
1529 *) Add new functions
1531 ERR_peek_last_error_line
1532 ERR_peek_last_error_line_data.
1533 These are similar to
1536 ERR_peek_error_line_data,
1537 but report on the latest error recorded rather than the first one
1538 still in the error queue.
1539 [Ben Laurie, Bodo Moeller]
1541 *) default_algorithms option in ENGINE config module. This allows things
1543 default_algorithms = ALL
1544 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
1547 *) Prelminary ENGINE config module.
1550 *) New experimental application configuration code.
1553 *) Change the AES code to follow the same name structure as all other
1554 symmetric ciphers, and behave the same way. Move everything to
1555 the directory crypto/aes, thereby obsoleting crypto/rijndael.
1556 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
1558 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
1559 [Ben Laurie and Theo de Raadt]
1561 *) Add option to output public keys in req command.
1562 [Massimiliano Pala madwolf@openca.org]
1564 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
1565 (up to about 10% better than before for P-192 and P-224).
1568 *) New functions/macros
1570 SSL_CTX_set_msg_callback(ctx, cb)
1571 SSL_CTX_set_msg_callback_arg(ctx, arg)
1572 SSL_set_msg_callback(ssl, cb)
1573 SSL_set_msg_callback_arg(ssl, arg)
1575 to request calling a callback function
1577 void cb(int write_p, int version, int content_type,
1578 const void *buf, size_t len, SSL *ssl, void *arg)
1580 whenever a protocol message has been completely received
1581 (write_p == 0) or sent (write_p == 1). Here 'version' is the
1582 protocol version according to which the SSL library interprets
1583 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
1584 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
1585 the content type as defined in the SSL 3.0/TLS 1.0 protocol
1586 specification (change_cipher_spec(20), alert(21), handshake(22)).
1587 'buf' and 'len' point to the actual message, 'ssl' to the
1588 SSL object, and 'arg' is the application-defined value set by
1589 SSL[_CTX]_set_msg_callback_arg().
1591 'openssl s_client' and 'openssl s_server' have new '-msg' options
1592 to enable a callback that displays all protocol messages.
1595 *) Change the shared library support so shared libraries are built as
1596 soon as the corresponding static library is finished, and thereby get
1597 openssl and the test programs linked against the shared library.
1598 This still only happens when the keyword "shard" has been given to
1599 the configuration scripts.
1601 NOTE: shared library support is still an experimental thing, and
1602 backward binary compatibility is still not guaranteed.
1603 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
1605 *) Add support for Subject Information Access extension.
1606 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1608 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
1609 additional bytes when new memory had to be allocated, not just
1610 when reusing an existing buffer.
1613 *) New command line and configuration option 'utf8' for the req command.
1614 This allows field values to be specified as UTF8 strings.
1617 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
1618 runs for the former and machine-readable output for the latter.
1621 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
1622 of the e-mail address in the DN (i.e., it will go into a certificate
1623 extension only). The new configuration file option 'email_in_dn = no'
1624 has the same effect.
1625 [Massimiliano Pala madwolf@openca.org]
1627 *) Change all functions with names starting with des_ to be starting
1628 with DES_ instead. Add wrappers that are compatible with libdes,
1629 but are named _ossl_old_des_*. Finally, add macros that map the
1630 des_* symbols to the corresponding _ossl_old_des_* if libdes
1631 compatibility is desired. If OpenSSL 0.9.6c compatibility is
1632 desired, the des_* symbols will be mapped to DES_*, with one
1635 Since we provide two compatibility mappings, the user needs to
1636 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
1637 compatibility is desired. The default (i.e., when that macro
1638 isn't defined) is OpenSSL 0.9.6c compatibility.
1640 There are also macros that enable and disable the support of old
1641 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
1642 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
1643 are defined, the default will apply: to support the old des routines.
1645 In either case, one must include openssl/des.h to get the correct
1646 definitions. Do not try to just include openssl/des_old.h, that
1649 NOTE: This is a major break of an old API into a new one. Software
1650 authors are encouraged to switch to the DES_ style functions. Some
1651 time in the future, des_old.h and the libdes compatibility functions
1652 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
1653 default), and then completely removed.
1656 *) Test for certificates which contain unsupported critical extensions.
1657 If such a certificate is found during a verify operation it is
1658 rejected by default: this behaviour can be overridden by either
1659 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
1660 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
1661 X509_supported_extension() has also been added which returns 1 if a
1662 particular extension is supported.
1665 *) Modify the behaviour of EVP cipher functions in similar way to digests
1666 to retain compatibility with existing code.
1669 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
1670 compatibility with existing code. In particular the 'ctx' parameter does
1671 not have to be to be initialized before the call to EVP_DigestInit() and
1672 it is tidied up after a call to EVP_DigestFinal(). New function
1673 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
1674 EVP_MD_CTX_copy() changed to not require the destination to be
1675 initialized valid and new function EVP_MD_CTX_copy_ex() added which
1676 requires the destination to be valid.
1678 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
1679 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
1682 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
1683 so that complete 'Handshake' protocol structures are kept in memory
1684 instead of overwriting 'msg_type' and 'length' with 'body' data.
1687 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
1688 [Massimo Santin via Richard Levitte]
1690 *) Major restructuring to the underlying ENGINE code. This includes
1691 reduction of linker bloat, separation of pure "ENGINE" manipulation
1692 (initialisation, etc) from functionality dealing with implementations
1693 of specific crypto iterfaces. This change also introduces integrated
1694 support for symmetric ciphers and digest implementations - so ENGINEs
1695 can now accelerate these by providing EVP_CIPHER and EVP_MD
1696 implementations of their own. This is detailed in crypto/engine/README
1697 as it couldn't be adequately described here. However, there are a few
1698 API changes worth noting - some RSA, DSA, DH, and RAND functions that
1699 were changed in the original introduction of ENGINE code have now
1700 reverted back - the hooking from this code to ENGINE is now a good
1701 deal more passive and at run-time, operations deal directly with
1702 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
1703 dereferencing through an ENGINE pointer any more. Also, the ENGINE
1704 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
1705 they were not being used by the framework as there is no concept of a
1706 BIGNUM_METHOD and they could not be generalised to the new
1707 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
1708 ENGINE_cpy() has been removed as it cannot be consistently defined in
1712 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
1715 *) Change mkdef.pl to sort symbols that get the same entry number,
1716 and make sure the automatically generated functions ERR_load_*
1717 become part of libeay.num as well.
1720 *) New function SSL_renegotiate_pending(). This returns true once
1721 renegotiation has been requested (either SSL_renegotiate() call
1722 or HelloRequest/ClientHello receveived from the peer) and becomes
1723 false once a handshake has been completed.
1724 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
1725 sends a HelloRequest, but does not ensure that a handshake takes
1726 place. SSL_renegotiate_pending() is useful for checking if the
1727 client has followed the request.)
1730 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
1731 By default, clients may request session resumption even during
1732 renegotiation (if session ID contexts permit); with this option,
1733 session resumption is possible only in the first handshake.
1735 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
1736 more bits available for options that should not be part of
1737 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
1740 *) Add some demos for certificate and certificate request creation.
1743 *) Make maximum certificate chain size accepted from the peer application
1744 settable (SSL*_get/set_max_cert_list()), as proposed by
1745 "Douglas E. Engert" <deengert@anl.gov>.
1748 *) Add support for shared libraries for Unixware-7
1749 (Boyd Lynn Gerber <gerberb@zenez.com>).
1752 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
1753 be done prior to destruction. Use this to unload error strings from
1754 ENGINEs that load their own error strings. NB: This adds two new API
1755 functions to "get" and "set" this destroy handler in an ENGINE.
1758 *) Alter all existing ENGINE implementations (except "openssl" and
1759 "openbsd") to dynamically instantiate their own error strings. This
1760 makes them more flexible to be built both as statically-linked ENGINEs
1761 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
1762 Also, add stub code to each that makes building them as self-contained
1763 shared-libraries easier (see README.ENGINE).
1766 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
1767 implementations into applications that are completely implemented in
1768 self-contained shared-libraries. The "dynamic" ENGINE exposes control
1769 commands that can be used to configure what shared-library to load and
1770 to control aspects of the way it is handled. Also, made an update to
1771 the README.ENGINE file that brings its information up-to-date and
1772 provides some information and instructions on the "dynamic" ENGINE
1773 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
1776 *) Make it possible to unload ranges of ERR strings with a new
1777 "ERR_unload_strings" function.
1780 *) Add a copy() function to EVP_MD.
1783 *) Make EVP_MD routines take a context pointer instead of just the
1784 md_data void pointer.
1787 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
1788 that the digest can only process a single chunk of data
1789 (typically because it is provided by a piece of
1790 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
1791 is only going to provide a single chunk of data, and hence the
1792 framework needn't accumulate the data for oneshot drivers.
1795 *) As with "ERR", make it possible to replace the underlying "ex_data"
1796 functions. This change also alters the storage and management of global
1797 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
1798 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
1799 index counters. The API functions that use this state have been changed
1800 to take a "class_index" rather than pointers to the class's local STACK
1801 and counter, and there is now an API function to dynamically create new
1802 classes. This centralisation allows us to (a) plug a lot of the
1803 thread-safety problems that existed, and (b) makes it possible to clean
1804 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
1805 such data would previously have always leaked in application code and
1806 workarounds were in place to make the memory debugging turn a blind eye
1807 to it. Application code that doesn't use this new function will still
1808 leak as before, but their memory debugging output will announce it now
1809 rather than letting it slide.
1811 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
1812 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
1813 has a return value to indicate success or failure.
1816 *) Make it possible to replace the underlying "ERR" functions such that the
1817 global state (2 LHASH tables and 2 locks) is only used by the "default"
1818 implementation. This change also adds two functions to "get" and "set"
1819 the implementation prior to it being automatically set the first time
1820 any other ERR function takes place. Ie. an application can call "get",
1821 pass the return value to a module it has just loaded, and that module
1822 can call its own "set" function using that value. This means the
1823 module's "ERR" operations will use (and modify) the error state in the
1824 application and not in its own statically linked copy of OpenSSL code.
1827 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
1828 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
1829 the operation, and provides a more encapsulated way for external code
1830 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
1831 to use these functions rather than manually incrementing the counts.
1833 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
1836 *) Add EVP test program.
1839 *) Add symmetric cipher support to ENGINE. Expect the API to change!
1842 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
1843 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
1844 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
1845 These allow a CRL to be built without having to access X509_CRL fields
1846 directly. Modify 'ca' application to use new functions.
1849 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
1850 bug workarounds. Rollback attack detection is a security feature.
1851 The problem will only arise on OpenSSL servers when TLSv1 is not
1852 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
1853 Software authors not wanting to support TLSv1 will have special reasons
1854 for their choice and can explicitly enable this option.
1855 [Bodo Moeller, Lutz Jaenicke]
1857 *) Rationalise EVP so it can be extended: don't include a union of
1858 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
1859 (similar to those existing for EVP_CIPHER_CTX).
1864 EVP_MD_CTX_init(&md); /* new function call */
1865 EVP_DigestInit(&md, EVP_sha1());
1866 EVP_DigestUpdate(&md, in, len);
1867 EVP_DigestFinal(&md, out, NULL);
1868 EVP_MD_CTX_cleanup(&md); /* new function call */
1872 *) Make DES key schedule conform to the usual scheme, as well as
1873 correcting its structure. This means that calls to DES functions
1874 now have to pass a pointer to a des_key_schedule instead of a
1875 plain des_key_schedule (which was actually always a pointer
1878 des_key_schedule ks;
1880 des_set_key_checked(..., &ks);
1881 des_ncbc_encrypt(..., &ks, ...);
1883 (Note that a later change renames 'des_...' into 'DES_...'.)
1886 *) Initial reduction of linker bloat: the use of some functions, such as
1887 PEM causes large amounts of unused functions to be linked in due to
1888 poor organisation. For example pem_all.c contains every PEM function
1889 which has a knock on effect of linking in large amounts of (unused)
1890 ASN1 code. Grouping together similar functions and splitting unrelated
1891 functions prevents this.
1894 *) Cleanup of EVP macros.
1897 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
1898 correct _ecb suffix.
1901 *) Add initial OCSP responder support to ocsp application. The
1902 revocation information is handled using the text based index
1903 use by the ca application. The responder can either handle
1904 requests generated internally, supplied in files (for example
1905 via a CGI script) or using an internal minimal server.
1908 *) Add configuration choices to get zlib compression for TLS.
1911 *) Changes to Kerberos SSL for RFC 2712 compliance:
1912 1. Implemented real KerberosWrapper, instead of just using
1913 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
1914 2. Implemented optional authenticator field of KerberosWrapper.
1916 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
1917 and authenticator structs; see crypto/krb5/.
1919 Generalized Kerberos calls to support multiple Kerberos libraries.
1920 [Vern Staats <staatsvr@asc.hpc.mil>,
1921 Jeffrey Altman <jaltman@columbia.edu>
1922 via Richard Levitte]
1924 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
1925 already does with RSA. testdsa.h now has 'priv_key/pub_key'
1926 values for each of the key sizes rather than having just
1927 parameters (and 'speed' generating keys each time).
1930 *) Speed up EVP routines.
1933 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
1934 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
1935 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
1936 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
1938 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
1939 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
1940 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
1943 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
1945 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
1948 *) Added the OS2-EMX target.
1949 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
1951 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
1952 to support NCONF routines in extension code. New function CONF_set_nconf()
1953 to allow functions which take an NCONF to also handle the old LHASH
1954 structure: this means that the old CONF compatible routines can be
1955 retained (in particular wrt extensions) without having to duplicate the
1956 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
1959 *) Enhance the general user interface with mechanisms for inner control
1960 and with possibilities to have yes/no kind of prompts.
1963 *) Change all calls to low level digest routines in the library and
1964 applications to use EVP. Add missing calls to HMAC_cleanup() and
1965 don't assume HMAC_CTX can be copied using memcpy().
1966 [Verdon Walker <VWalker@novell.com>, Steve Henson]
1968 *) Add the possibility to control engines through control names but with
1969 arbitrary arguments instead of just a string.
1970 Change the key loaders to take a UI_METHOD instead of a callback
1971 function pointer. NOTE: this breaks binary compatibility with earlier
1972 versions of OpenSSL [engine].
1973 Adapt the nCipher code for these new conditions and add a card insertion
1977 *) Enhance the general user interface with mechanisms to better support
1978 dialog box interfaces, application-defined prompts, the possibility
1979 to use defaults (for example default passwords from somewhere else)
1980 and interrupts/cancellations.
1983 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
1984 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
1987 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
1988 tidy up some unnecessarily weird code in 'sk_new()').
1989 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
1991 *) Change the key loading routines for ENGINEs to use the same kind
1992 callback (pem_password_cb) as all other routines that need this
1996 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
1997 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
1998 than this minimum value is recommended.
2001 *) New random seeder for OpenVMS, using the system process statistics
2002 that are easily reachable.
2005 *) Windows apparently can't transparently handle global
2006 variables defined in DLLs. Initialisations such as:
2008 const ASN1_ITEM *it = &ASN1_INTEGER_it;
2010 wont compile. This is used by the any applications that need to
2011 declare their own ASN1 modules. This was fixed by adding the option
2012 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
2013 needed for static libraries under Win32.
2016 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
2017 setting of purpose and trust fields. New X509_STORE trust and
2018 purpose functions and tidy up setting in other SSL functions.
2021 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
2022 structure. These are inherited by X509_STORE_CTX when it is
2023 initialised. This allows various defaults to be set in the
2024 X509_STORE structure (such as flags for CRL checking and custom
2025 purpose or trust settings) for functions which only use X509_STORE_CTX
2026 internally such as S/MIME.
2028 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
2029 trust settings if they are not set in X509_STORE. This allows X509_STORE
2030 purposes and trust (in S/MIME for example) to override any set by default.
2032 Add command line options for CRL checking to smime, s_client and s_server
2036 *) Initial CRL based revocation checking. If the CRL checking flag(s)
2037 are set then the CRL is looked up in the X509_STORE structure and
2038 its validity and signature checked, then if the certificate is found
2039 in the CRL the verify fails with a revoked error.
2041 Various new CRL related callbacks added to X509_STORE_CTX structure.
2043 Command line options added to 'verify' application to support this.
2045 This needs some additional work, such as being able to handle multiple
2046 CRLs with different times, extension based lookup (rather than just
2047 by subject name) and ultimately more complete V2 CRL extension
2051 *) Add a general user interface API (crypto/ui/). This is designed
2052 to replace things like des_read_password and friends (backward
2053 compatibility functions using this new API are provided).
2054 The purpose is to remove prompting functions from the DES code
2055 section as well as provide for prompting through dialog boxes in
2056 a window system and the like.
2059 *) Add "ex_data" support to ENGINE so implementations can add state at a
2060 per-structure level rather than having to store it globally.
2063 *) Make it possible for ENGINE structures to be copied when retrieved by
2064 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
2065 This causes the "original" ENGINE structure to act like a template,
2066 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
2067 operational state can be localised to each ENGINE structure, despite the
2068 fact they all share the same "methods". New ENGINE structures returned in
2069 this case have no functional references and the return value is the single
2070 structural reference. This matches the single structural reference returned
2071 by ENGINE_by_id() normally, when it is incremented on the pre-existing
2075 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
2076 needs to match any other type at all we need to manually clear the
2080 *) Changes to the "openssl engine" utility to include;
2081 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
2082 about an ENGINE's available control commands.
2083 - executing control commands from command line arguments using the
2084 '-pre' and '-post' switches. '-post' is only used if '-t' is
2085 specified and the ENGINE is successfully initialised. The syntax for
2086 the individual commands are colon-separated, for example;
2087 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
2090 *) New dynamic control command support for ENGINEs. ENGINEs can now
2091 declare their own commands (numbers), names (strings), descriptions,
2092 and input types for run-time discovery by calling applications. A
2093 subset of these commands are implicitly classed as "executable"
2094 depending on their input type, and only these can be invoked through
2095 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
2096 can be based on user input, config files, etc). The distinction is
2097 that "executable" commands cannot return anything other than a boolean
2098 result and can only support numeric or string input, whereas some
2099 discoverable commands may only be for direct use through
2100 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
2101 pointers, or other custom uses. The "executable" commands are to
2102 support parameterisations of ENGINE behaviour that can be
2103 unambiguously defined by ENGINEs and used consistently across any
2104 OpenSSL-based application. Commands have been added to all the
2105 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
2106 control over shared-library paths without source code alterations.
2109 *) Changed all ENGINE implementations to dynamically allocate their
2110 ENGINEs rather than declaring them statically. Apart from this being
2111 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
2112 this also allows the implementations to compile without using the
2113 internal engine_int.h header.
2116 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
2117 'const' value. Any code that should be able to modify a RAND_METHOD
2118 should already have non-const pointers to it (ie. they should only
2119 modify their own ones).
2122 *) Made a variety of little tweaks to the ENGINE code.
2123 - "atalla" and "ubsec" string definitions were moved from header files
2124 to C code. "nuron" string definitions were placed in variables
2125 rather than hard-coded - allowing parameterisation of these values
2126 later on via ctrl() commands.
2127 - Removed unused "#if 0"'d code.
2128 - Fixed engine list iteration code so it uses ENGINE_free() to release
2129 structural references.
2130 - Constified the RAND_METHOD element of ENGINE structures.
2131 - Constified various get/set functions as appropriate and added
2132 missing functions (including a catch-all ENGINE_cpy that duplicates
2133 all ENGINE values onto a new ENGINE except reference counts/state).
2134 - Removed NULL parameter checks in get/set functions. Setting a method
2135 or function to NULL is a way of cancelling out a previously set
2136 value. Passing a NULL ENGINE parameter is just plain stupid anyway
2137 and doesn't justify the extra error symbols and code.
2138 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
2139 flags from engine_int.h to engine.h.
2140 - Changed prototypes for ENGINE handler functions (init(), finish(),
2141 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
2144 *) Implement binary inversion algorithm for BN_mod_inverse in addition
2145 to the algorithm using long division. The binary algorithm can be
2146 used only if the modulus is odd. On 32-bit systems, it is faster
2147 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
2148 roughly 5-15% for 256-bit moduli), so we use it only for moduli
2149 up to 450 bits. In 64-bit environments, the binary algorithm
2150 appears to be advantageous for much longer moduli; here we use it
2151 for moduli up to 2048 bits.
2154 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
2155 could not support the combine flag in choice fields.
2158 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
2159 extensions from a certificate request to the certificate.
2162 *) Allow multiple 'certopt' and 'nameopt' options to be separated
2163 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
2164 file: this allows the display of the certificate about to be
2165 signed to be customised, to allow certain fields to be included
2166 or excluded and extension details. The old system didn't display
2167 multicharacter strings properly, omitted fields not in the policy
2168 and couldn't display additional details such as extensions.
2171 *) Function EC_POINTs_mul for multiple scalar multiplication
2172 of an arbitrary number of elliptic curve points
2173 \sum scalars[i]*points[i],
2174 optionally including the generator defined for the EC_GROUP:
2175 scalar*generator + \sum scalars[i]*points[i].
2177 EC_POINT_mul is a simple wrapper function for the typical case
2178 that the point list has just one item (besides the optional
2182 *) First EC_METHODs for curves over GF(p):
2184 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
2185 operations and provides various method functions that can also
2186 operate with faster implementations of modular arithmetic.
2188 EC_GFp_mont_method() reuses most functions that are part of
2189 EC_GFp_simple_method, but uses Montgomery arithmetic.
2191 [Bodo Moeller; point addition and point doubling
2192 implementation directly derived from source code provided by
2193 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
2195 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
2196 crypto/ec/ec_lib.c):
2198 Curves are EC_GROUP objects (with an optional group generator)
2199 based on EC_METHODs that are built into the library.
2201 Points are EC_POINT objects based on EC_GROUP objects.
2203 Most of the framework would be able to handle curves over arbitrary
2204 finite fields, but as there are no obvious types for fields other
2205 than GF(p), some functions are limited to that for now.
2208 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
2209 that the file contains a complete HTTP response.
2212 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
2213 change the def and num file printf format specifier from "%-40sXXX"
2214 to "%-39s XXX". The latter will always guarantee a space after the
2215 field while the former will cause them to run together if the field
2216 is 40 of more characters long.
2219 *) Constify the cipher and digest 'method' functions and structures
2220 and modify related functions to take constant EVP_MD and EVP_CIPHER
2224 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
2225 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
2228 *) Modify EVP_Digest*() routines so they now return values. Although the
2229 internal software routines can never fail additional hardware versions
2233 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
2235 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
2236 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
2239 ERR_R_NESTED_ASN1_ERROR
2241 ERR_R_MISSING_ASN1_EOS
2242 were 4 .. 9, conflicting with
2243 ERR_LIB_RSA (= ERR_R_RSA_LIB)
2245 ERR_LIB_PEM (= ERR_R_PEM_LIB).
2246 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
2248 Add new error code 'ERR_R_INTERNAL_ERROR'.
2251 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
2255 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
2256 sets the subject name for a new request or supersedes the
2257 subject name in a given request. Formats that can be parsed are
2258 'CN=Some Name, OU=myOU, C=IT'
2260 'CN=Some Name/OU=myOU/C=IT'.
2262 Add options '-batch' and '-verbose' to 'openssl req'.
2263 [Massimiliano Pala <madwolf@hackmasters.net>]
2265 *) Introduce the possibility to access global variables through
2266 functions on platform were that's the best way to handle exporting
2267 global variables in shared libraries. To enable this functionality,
2268 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
2269 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
2270 is normally done by Configure or something similar).
2272 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
2273 in the source file (foo.c) like this:
2275 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
2276 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
2278 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
2279 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
2281 OPENSSL_DECLARE_GLOBAL(int,foo);
2282 #define foo OPENSSL_GLOBAL_REF(foo)
2283 OPENSSL_DECLARE_GLOBAL(double,bar);
2284 #define bar OPENSSL_GLOBAL_REF(bar)
2286 The #defines are very important, and therefore so is including the
2287 header file everywhere where the defined globals are used.
2289 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
2290 of ASN.1 items, but that structure is a bit different.
2292 The largest change is in util/mkdef.pl which has been enhanced with
2293 better and easier to understand logic to choose which symbols should
2294 go into the Windows .def files as well as a number of fixes and code
2295 cleanup (among others, algorithm keywords are now sorted
2296 lexicographically to avoid constant rewrites).
2299 *) In BN_div() keep a copy of the sign of 'num' before writing the
2300 result to 'rm' because if rm==num the value will be overwritten
2301 and produce the wrong result if 'num' is negative: this caused
2302 problems with BN_mod() and BN_nnmod().
2305 *) Function OCSP_request_verify(). This checks the signature on an
2306 OCSP request and verifies the signer certificate. The signer
2307 certificate is just checked for a generic purpose and OCSP request
2311 *) Add OCSP_check_validity() function to check the validity of OCSP
2312 responses. OCSP responses are prepared in real time and may only
2313 be a few seconds old. Simply checking that the current time lies
2314 between thisUpdate and nextUpdate max reject otherwise valid responses
2315 caused by either OCSP responder or client clock inaccuracy. Instead
2316 we allow thisUpdate and nextUpdate to fall within a certain period of
2317 the current time. The age of the response can also optionally be
2318 checked. Two new options -validity_period and -status_age added to
2322 *) If signature or public key algorithm is unrecognized print out its
2323 OID rather that just UNKNOWN.
2326 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
2327 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
2328 ID to be generated from the issuer certificate alone which can then be
2329 passed to OCSP_id_issuer_cmp().
2332 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
2333 ASN1 modules to export functions returning ASN1_ITEM pointers
2334 instead of the ASN1_ITEM structures themselves. This adds several
2335 new macros which allow the underlying ASN1 function/structure to
2336 be accessed transparently. As a result code should not use ASN1_ITEM
2337 references directly (such as &X509_it) but instead use the relevant
2338 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
2339 use of the new ASN1 code on platforms where exporting structures
2340 is problematical (for example in shared libraries) but exporting
2341 functions returning pointers to structures is not.
2344 *) Add support for overriding the generation of SSL/TLS session IDs.
2345 These callbacks can be registered either in an SSL_CTX or per SSL.
2346 The purpose of this is to allow applications to control, if they wish,
2347 the arbitrary values chosen for use as session IDs, particularly as it
2348 can be useful for session caching in multiple-server environments. A
2349 command-line switch for testing this (and any client code that wishes
2350 to use such a feature) has been added to "s_server".
2351 [Geoff Thorpe, Lutz Jaenicke]
2353 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
2354 of the form '#if defined(...) || defined(...) || ...' and
2355 '#if !defined(...) && !defined(...) && ...'. This also avoids
2356 the growing number of special cases it was previously handling.
2359 *) Make all configuration macros available for application by making
2360 sure they are available in opensslconf.h, by giving them names starting
2361 with "OPENSSL_" to avoid conflicts with other packages and by making
2362 sure e_os2.h will cover all platform-specific cases together with
2364 Additionally, it is now possible to define configuration/platform-
2365 specific names (called "system identities"). In the C code, these
2366 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
2367 macro with the name beginning with "OPENSSL_SYS_", which is determined
2368 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
2372 *) New option -set_serial to 'req' and 'x509' this allows the serial
2373 number to use to be specified on the command line. Previously self
2374 signed certificates were hard coded with serial number 0 and the
2375 CA options of 'x509' had to use a serial number in a file which was
2379 *) New options to 'ca' utility to support V2 CRL entry extensions.
2380 Currently CRL reason, invalidity date and hold instruction are
2381 supported. Add new CRL extensions to V3 code and some new objects.
2384 *) New function EVP_CIPHER_CTX_set_padding() this is used to
2385 disable standard block padding (aka PKCS#5 padding) in the EVP
2386 API, which was previously mandatory. This means that the data is
2387 not padded in any way and so the total length much be a multiple
2388 of the block size, otherwise an error occurs.
2391 *) Initial (incomplete) OCSP SSL support.
2394 *) New function OCSP_parse_url(). This splits up a URL into its host,
2395 port and path components: primarily to parse OCSP URLs. New -url
2396 option to ocsp utility.
2399 *) New nonce behavior. The return value of OCSP_check_nonce() now
2400 reflects the various checks performed. Applications can decide
2401 whether to tolerate certain situations such as an absent nonce
2402 in a response when one was present in a request: the ocsp application
2403 just prints out a warning. New function OCSP_add1_basic_nonce()
2404 this is to allow responders to include a nonce in a response even if
2405 the request is nonce-less.
2408 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
2409 skipped when using openssl x509 multiple times on a single input file,
2410 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
2413 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
2414 set string type: to handle setting ASN1_TIME structures. Fix ca
2415 utility to correctly initialize revocation date of CRLs.
2418 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
2419 the clients preferred ciphersuites and rather use its own preferences.
2420 Should help to work around M$ SGC (Server Gated Cryptography) bug in
2421 Internet Explorer by ensuring unchanged hash method during stepup.
2422 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
2425 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
2426 to aes and add a new 'exist' option to print out symbols that don't
2430 *) Additional options to ocsp utility to allow flags to be set and
2431 additional certificates supplied.
2434 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
2435 OCSP client a number of certificate to only verify the response
2439 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
2440 handle the new API. Currently only ECB, CBC modes supported. Add new
2443 Add TLS AES ciphersuites as described in RFC3268, "Advanced
2444 Encryption Standard (AES) Ciphersuites for Transport Layer
2445 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
2446 not enabled by default and were not part of the "ALL" ciphersuite
2447 alias because they were not yet official; they could be
2448 explicitly requested by specifying the "AESdraft" ciphersuite
2449 group alias. In the final release of OpenSSL 0.9.7, the group
2450 alias is called "AES" and is part of "ALL".)
2451 [Ben Laurie, Steve Henson, Bodo Moeller]
2453 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
2454 request to response.
2457 *) Functions for OCSP responders. OCSP_request_onereq_count(),
2458 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
2459 extract information from a certificate request. OCSP_response_create()
2460 creates a response and optionally adds a basic response structure.
2461 OCSP_basic_add1_status() adds a complete single response to a basic
2462 response and returns the OCSP_SINGLERESP structure just added (to allow
2463 extensions to be included for example). OCSP_basic_add1_cert() adds a
2464 certificate to a basic response and OCSP_basic_sign() signs a basic
2465 response with various flags. New helper functions ASN1_TIME_check()
2466 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
2467 (converts ASN1_TIME to GeneralizedTime).
2470 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
2471 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
2472 structure from a certificate. X509_pubkey_digest() digests the public_key
2473 contents: this is used in various key identifiers.
2476 *) Make sk_sort() tolerate a NULL argument.
2477 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
2479 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
2480 passed by the function are trusted implicitly. If any of them signed the
2481 response then it is assumed to be valid and is not verified.
2484 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
2485 to data. This was previously part of the PKCS7 ASN1 code. This
2486 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
2487 [Steve Henson, reported by Kenneth R. Robinette
2488 <support@securenetterm.com>]
2490 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
2491 routines: without these tracing memory leaks is very painful.
2492 Fix leaks in PKCS12 and PKCS7 routines.
2495 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
2496 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
2497 effectively meant GeneralizedTime would never be used. Now it
2498 is initialised to -1 but X509_time_adj() now has to check the value
2499 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
2500 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
2501 [Steve Henson, reported by Kenneth R. Robinette
2502 <support@securenetterm.com>]
2504 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
2505 result in a zero length in the ASN1_INTEGER structure which was
2506 not consistent with the structure when d2i_ASN1_INTEGER() was used
2507 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
2508 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
2509 where it did not print out a minus for negative ASN1_INTEGER.
2512 *) Add summary printout to ocsp utility. The various functions which
2513 convert status values to strings have been renamed to:
2514 OCSP_response_status_str(), OCSP_cert_status_str() and
2515 OCSP_crl_reason_str() and are no longer static. New options
2516 to verify nonce values and to disable verification. OCSP response
2517 printout format cleaned up.
2520 *) Add additional OCSP certificate checks. These are those specified
2521 in RFC2560. This consists of two separate checks: the CA of the
2522 certificate being checked must either be the OCSP signer certificate
2523 or the issuer of the OCSP signer certificate. In the latter case the
2524 OCSP signer certificate must contain the OCSP signing extended key
2525 usage. This check is performed by attempting to match the OCSP
2526 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
2527 in the OCSP_CERTID structures of the response.
2530 *) Initial OCSP certificate verification added to OCSP_basic_verify()
2531 and related routines. This uses the standard OpenSSL certificate
2532 verify routines to perform initial checks (just CA validity) and
2533 to obtain the certificate chain. Then additional checks will be
2534 performed on the chain. Currently the root CA is checked to see
2535 if it is explicitly trusted for OCSP signing. This is used to set
2536 a root CA as a global signing root: that is any certificate that
2537 chains to that CA is an acceptable OCSP signing certificate.
2540 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
2541 extensions from a separate configuration file.
2542 As when reading extensions from the main configuration file,
2543 the '-extensions ...' option may be used for specifying the
2545 [Massimiliano Pala <madwolf@comune.modena.it>]
2547 *) New OCSP utility. Allows OCSP requests to be generated or
2548 read. The request can be sent to a responder and the output
2549 parsed, outputed or printed in text form. Not complete yet:
2550 still needs to check the OCSP response validity.
2553 *) New subcommands for 'openssl ca':
2554 'openssl ca -status <serial>' prints the status of the cert with
2555 the given serial number (according to the index file).
2556 'openssl ca -updatedb' updates the expiry status of certificates
2558 [Massimiliano Pala <madwolf@comune.modena.it>]
2560 *) New '-newreq-nodes' command option to CA.pl. This is like
2561 '-newreq', but calls 'openssl req' with the '-nodes' option
2562 so that the resulting key is not encrypted.
2563 [Damien Miller <djm@mindrot.org>]
2565 *) New configuration for the GNU Hurd.
2566 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
2568 *) Initial code to implement OCSP basic response verify. This
2569 is currently incomplete. Currently just finds the signer's
2570 certificate and verifies the signature on the response.
2573 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
2574 value of OPENSSLDIR. This is available via the new '-d' option
2575 to 'openssl version', and is also included in 'openssl version -a'.
2578 *) Allowing defining memory allocation callbacks that will be given
2579 file name and line number information in additional arguments
2580 (a const char* and an int). The basic functionality remains, as
2581 well as the original possibility to just replace malloc(),
2582 realloc() and free() by functions that do not know about these
2583 additional arguments. To register and find out the current
2584 settings for extended allocation functions, the following
2585 functions are provided:
2587 CRYPTO_set_mem_ex_functions
2588 CRYPTO_set_locked_mem_ex_functions
2589 CRYPTO_get_mem_ex_functions
2590 CRYPTO_get_locked_mem_ex_functions
2592 These work the same way as CRYPTO_set_mem_functions and friends.
2593 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
2594 extended allocation function is enabled.
2595 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
2596 a conventional allocation function is enabled.
2597 [Richard Levitte, Bodo Moeller]
2599 *) Finish off removing the remaining LHASH function pointer casts.
2600 There should no longer be any prototype-casting required when using
2601 the LHASH abstraction, and any casts that remain are "bugs". See
2602 the callback types and macros at the head of lhash.h for details
2603 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
2606 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
2607 If /dev/[u]random devices are not available or do not return enough
2608 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
2610 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
2611 /etc/entropy will be queried once each in this sequence, quering stops
2612 when enough entropy was collected without querying more sockets.
2615 *) Change the Unix RAND_poll() variant to be able to poll several
2616 random devices, as specified by DEVRANDOM, until a sufficient amount
2617 of data has been collected. We spend at most 10 ms on each file
2618 (select timeout) and read in non-blocking mode. DEVRANDOM now
2619 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
2620 (previously it was just the string "/dev/urandom"), so on typical
2621 platforms the 10 ms delay will never occur.
2622 Also separate out the Unix variant to its own file, rand_unix.c.
2623 For VMS, there's a currently-empty rand_vms.c.
2626 *) Move OCSP client related routines to ocsp_cl.c. These
2627 provide utility functions which an application needing
2628 to issue a request to an OCSP responder and analyse the
2629 response will typically need: as opposed to those which an
2630 OCSP responder itself would need which will be added later.
2632 OCSP_request_sign() signs an OCSP request with an API similar
2633 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
2634 response. OCSP_response_get1_basic() extracts basic response
2635 from response. OCSP_resp_find_status(): finds and extracts status
2636 information from an OCSP_CERTID structure (which will be created
2637 when the request structure is built). These are built from lower
2638 level functions which work on OCSP_SINGLERESP structures but
2639 wont normally be used unless the application wishes to examine
2640 extensions in the OCSP response for example.
2642 Replace nonce routines with a pair of functions.
2643 OCSP_request_add1_nonce() adds a nonce value and optionally
2644 generates a random value. OCSP_check_nonce() checks the
2645 validity of the nonce in an OCSP response.
2648 *) Change function OCSP_request_add() to OCSP_request_add0_id().
2649 This doesn't copy the supplied OCSP_CERTID and avoids the
2650 need to free up the newly created id. Change return type
2651 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
2652 This can then be used to add extensions to the request.
2653 Deleted OCSP_request_new(), since most of its functionality
2654 is now in OCSP_REQUEST_new() (and the case insensitive name
2655 clash) apart from the ability to set the request name which
2656 will be added elsewhere.
2659 *) Update OCSP API. Remove obsolete extensions argument from
2660 various functions. Extensions are now handled using the new
2661 OCSP extension code. New simple OCSP HTTP function which
2662 can be used to send requests and parse the response.
2665 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
2666 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
2667 uses the special reorder version of SET OF to sort the attributes
2668 and reorder them to match the encoded order. This resolves a long
2669 standing problem: a verify on a PKCS7 structure just after signing
2670 it used to fail because the attribute order did not match the
2671 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
2672 it uses the received order. This is necessary to tolerate some broken
2673 software that does not order SET OF. This is handled by encoding
2674 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
2675 to produce the required SET OF.
2678 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
2679 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
2680 files to get correct declarations of the ASN.1 item variables.
2683 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
2684 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
2685 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
2686 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
2687 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
2688 ASN1_ITEM and no wrapper functions.
2691 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
2692 replace the old function pointer based I/O routines. Change most of
2693 the *_d2i_bio() and *_d2i_fp() functions to use these.
2696 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
2697 lines, recognice more "algorithms" that can be deselected, and make
2698 it complain about algorithm deselection that isn't recognised.
2701 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
2702 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
2703 to use new functions. Add NO_ASN1_OLD which can be set to remove
2704 some old style ASN1 functions: this can be used to determine if old
2705 code will still work when these eventually go away.
2708 *) New extension functions for OCSP structures, these follow the
2709 same conventions as certificates and CRLs.
2712 *) New function X509V3_add1_i2d(). This automatically encodes and
2713 adds an extension. Its behaviour can be customised with various
2714 flags to append, replace or delete. Various wrappers added for
2715 certifcates and CRLs.
2718 *) Fix to avoid calling the underlying ASN1 print routine when
2719 an extension cannot be parsed. Correct a typo in the
2720 OCSP_SERVICELOC extension. Tidy up print OCSP format.
2723 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
2724 entries for variables.
2727 *) Add functionality to apps/openssl.c for detecting locking
2728 problems: As the program is single-threaded, all we have
2729 to do is register a locking callback using an array for
2730 storing which locks are currently held by the program.
2733 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
2734 SSL_get_ex_data_X509_STORE_idx(), which is used in
2735 ssl_verify_cert_chain() and thus can be called at any time
2736 during TLS/SSL handshakes so that thread-safety is essential.
2737 Unfortunately, the ex_data design is not at all suited
2738 for multi-threaded use, so it probably should be abolished.
2741 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
2742 [Broadcom, tweaked and integrated by Geoff Thorpe]
2744 *) Move common extension printing code to new function
2745 X509V3_print_extensions(). Reorganise OCSP print routines and
2746 implement some needed OCSP ASN1 functions. Add OCSP extensions.
2749 *) New function X509_signature_print() to remove duplication in some
2753 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
2754 set (this was treated exactly the same as SET OF previously). This
2755 is used to reorder the STACK representing the structure to match the
2756 encoding. This will be used to get round a problem where a PKCS7
2757 structure which was signed could not be verified because the STACK
2758 order did not reflect the encoded order.
2761 *) Reimplement the OCSP ASN1 module using the new code.
2764 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
2765 for its ASN1 operations. The old style function pointers still exist
2766 for now but they will eventually go away.
2769 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
2770 completely replaces the old ASN1 functionality with a table driven
2771 encoder and decoder which interprets an ASN1_ITEM structure describing
2772 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
2773 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
2774 has also been converted to the new form.
2777 *) Change BN_mod_exp_recp so that negative moduli are tolerated
2778 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
2779 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
2780 for negative moduli.
2783 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
2784 of not touching the result's sign bit.
2787 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
2791 *) Changed the LHASH code to use prototypes for callbacks, and created
2792 macros to declare and implement thin (optionally static) functions
2793 that provide type-safety and avoid function pointer casting for the
2794 type-specific callbacks.
2797 *) Added Kerberos Cipher Suites to be used with TLS, as written in
2799 [Veers Staats <staatsvr@asc.hpc.mil>,
2800 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
2802 *) Reformat the FAQ so the different questions and answers can be divided
2803 in sections depending on the subject.
2806 *) Have the zlib compression code load ZLIB.DLL dynamically under
2810 *) New function BN_mod_sqrt for computing square roots modulo a prime
2811 (using the probabilistic Tonelli-Shanks algorithm unless
2812 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
2813 be handled deterministically).
2814 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
2816 *) Make BN_mod_inverse faster by explicitly handling small quotients
2817 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
2818 512 bits], about 30% for larger ones [1024 or 2048 bits].)
2821 *) New function BN_kronecker.
2824 *) Fix BN_gcd so that it works on negative inputs; the result is
2825 positive unless both parameters are zero.
2826 Previously something reasonably close to an infinite loop was
2827 possible because numbers could be growing instead of shrinking
2828 in the implementation of Euclid's algorithm.
2831 *) Fix BN_is_word() and BN_is_one() macros to take into account the
2832 sign of the number in question.
2834 Fix BN_is_word(a,w) to work correctly for w == 0.
2836 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
2837 because its test if the absolute value of 'a' equals 'w'.
2838 Note that BN_abs_is_word does *not* handle w == 0 reliably;
2839 it exists mostly for use in the implementations of BN_is_zero(),
2840 BN_is_one(), and BN_is_word().
2843 *) New function BN_swap.
2846 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
2847 the exponentiation functions are more likely to produce reasonable
2848 results on negative inputs.
2851 *) Change BN_mod_mul so that the result is always non-negative.
2852 Previously, it could be negative if one of the factors was negative;
2853 I don't think anyone really wanted that behaviour.
2856 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
2857 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
2858 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
2859 and add new functions:
2868 BN_mod_lshift1_quick
2872 These functions always generate non-negative results.
2874 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
2875 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
2877 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
2878 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
2879 be reduced modulo m.
2880 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
2883 The following entry accidentily appeared in the CHANGES file
2884 distributed with OpenSSL 0.9.7. The modifications described in
2885 it do *not* apply to OpenSSL 0.9.7.
2887 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
2888 was actually never needed) and in BN_mul(). The removal in BN_mul()
2889 required a small change in bn_mul_part_recursive() and the addition
2890 of the functions bn_cmp_part_words(), bn_sub_part_words() and
2891 bn_add_part_words(), which do the same thing as bn_cmp_words(),
2892 bn_sub_words() and bn_add_words() except they take arrays with
2897 *) In 'openssl passwd', verify passwords read from the terminal
2898 unless the '-salt' option is used (which usually means that
2899 verification would just waste user's time since the resulting
2900 hash is going to be compared with some given password hash)
2901 or the new '-noverify' option is used.
2903 This is an incompatible change, but it does not affect
2904 non-interactive use of 'openssl passwd' (passwords on the command
2905 line, '-stdin' option, '-in ...' option) and thus should not
2909 *) Remove all references to RSAref, since there's no more need for it.
2912 *) Make DSO load along a path given through an environment variable
2913 (SHLIB_PATH) with shl_load().
2916 *) Constify the ENGINE code as a result of BIGNUM constification.
2917 Also constify the RSA code and most things related to it. In a
2918 few places, most notable in the depth of the ASN.1 code, ugly
2919 casts back to non-const were required (to be solved at a later
2923 *) Make it so the openssl application has all engines loaded by default.
2926 *) Constify the BIGNUM routines a little more.
2929 *) Add the following functions:
2931 ENGINE_load_cswift()
2933 ENGINE_load_atalla()
2935 ENGINE_load_builtin_engines()
2937 That way, an application can itself choose if external engines that
2938 are built-in in OpenSSL shall ever be used or not. The benefit is
2939 that applications won't have to be linked with libdl or other dso
2940 libraries unless it's really needed.
2942 Changed 'openssl engine' to load all engines on demand.
2943 Changed the engine header files to avoid the duplication of some
2944 declarations (they differed!).
2947 *) 'openssl engine' can now list capabilities.
2950 *) Better error reporting in 'openssl engine'.
2953 *) Never call load_dh_param(NULL) in s_server.
2956 *) Add engine application. It can currently list engines by name and
2957 identity, and test if they are actually available.
2960 *) Improve RPM specification file by forcing symbolic linking and making
2961 sure the installed documentation is also owned by root.root.
2962 [Damien Miller <djm@mindrot.org>]
2964 *) Give the OpenSSL applications more possibilities to make use of
2965 keys (public as well as private) handled by engines.
2968 *) Add OCSP code that comes from CertCo.
2971 *) Add VMS support for the Rijndael code.
2974 *) Added untested support for Nuron crypto accelerator.
2977 *) Add support for external cryptographic devices. This code was
2978 previously distributed separately as the "engine" branch.
2979 [Geoff Thorpe, Richard Levitte]
2981 *) Rework the filename-translation in the DSO code. It is now possible to
2982 have far greater control over how a "name" is turned into a filename
2983 depending on the operating environment and any oddities about the
2984 different shared library filenames on each system.
2987 *) Support threads on FreeBSD-elf in Configure.
2990 *) Fix for SHA1 assembly problem with MASM: it produces
2991 warnings about corrupt line number information when assembling
2992 with debugging information. This is caused by the overlapping
2994 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
2997 NCONF_get_number() has no error checking at all. As a replacement,
2998 NCONF_get_number_e() is defined (_e for "error checking") and is
2999 promoted strongly. The old NCONF_get_number is kept around for
3000 binary backward compatibility.
3001 Make it possible for methods to load from something other than a BIO,
3002 by providing a function pointer that is given a name instead of a BIO.
3003 For example, this could be used to load configuration data from an
3007 *) Fix for non blocking accept BIOs. Added new I/O special reason
3008 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
3009 with non blocking I/O was not possible because no retry code was
3010 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
3014 *) Added the beginnings of Rijndael support.
3017 *) Fix for bug in DirectoryString mask setting. Add support for
3018 X509_NAME_print_ex() in 'req' and X509_print_ex() function
3019 to allow certificate printing to more controllable, additional
3020 'certopt' option to 'x509' to allow new printing options to be
3024 *) Clean old EAY MD5 hack from e_os.h.
3027 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
3029 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3030 by using the Codenomicon TLS Test Tool (CAN-2004-0079)
3031 [Joe Orton, Steve Henson]
3033 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
3035 *) Fix additional bug revealed by the NISCC test suite:
3037 Stop bug triggering large recursion when presented with
3038 certain ASN.1 tags (CAN-2003-0851)
3041 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
3043 *) Fix various bugs revealed by running the NISCC test suite:
3045 Stop out of bounds reads in the ASN1 code when presented with
3046 invalid tags (CAN-2003-0543 and CAN-2003-0544).
3048 If verify callback ignores invalid public key errors don't try to check
3049 certificate signature with the NULL public key.
3053 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3054 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3058 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3059 extra data after the compression methods not only for TLS 1.0
3060 but also for SSL 3.0 (as required by the specification).
3061 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3063 *) Change X509_certificate_type() to mark the key as exported/exportable
3064 when it's 512 *bits* long, not 512 bytes.
3067 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
3069 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3070 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3071 a protocol version number mismatch like a decryption error
3072 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3075 *) Turn on RSA blinding by default in the default implementation
3076 to avoid a timing attack. Applications that don't want it can call
3077 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3078 They would be ill-advised to do so in most cases.
3079 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3081 *) Change RSA blinding code so that it works when the PRNG is not
3082 seeded (in this case, the secret RSA exponent is abused as
3083 an unpredictable seed -- if it is not unpredictable, there
3084 is no point in blinding anyway). Make RSA blinding thread-safe
3085 by remembering the creator's thread ID in rsa->blinding and
3086 having all other threads use local one-time blinding factors
3087 (this requires more computation than sharing rsa->blinding, but
3088 avoids excessive locking; and if an RSA object is not shared
3089 between threads, blinding will still be very fast).
3092 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
3094 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3095 via timing by performing a MAC computation even if incorrrect
3096 block cipher padding has been found. This is a countermeasure
3097 against active attacks where the attacker has to distinguish
3098 between bad padding and a MAC verification error. (CAN-2003-0078)
3100 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3101 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3102 Martin Vuagnoux (EPFL, Ilion)]
3104 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
3106 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
3107 memory from it's contents. This is done with a counter that will
3108 place alternating values in each byte. This can be used to solve
3109 two issues: 1) the removal of calls to memset() by highly optimizing
3110 compilers, and 2) cleansing with other values than 0, since those can
3111 be read through on certain media, for example a swap space on disk.
3114 *) Bugfix: client side session caching did not work with external caching,
3115 because the session->cipher setting was not restored when reloading
3116 from the external cache. This problem was masked, when
3117 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
3118 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
3121 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
3122 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
3123 [Zeev Lieber <zeev-l@yahoo.com>]
3125 *) Undo an undocumented change introduced in 0.9.6e which caused
3126 repeated calls to OpenSSL_add_all_ciphers() and
3127 OpenSSL_add_all_digests() to be ignored, even after calling
3131 *) Change the default configuration reader to deal with last line not
3132 being properly terminated.
3135 *) Change X509_NAME_cmp() so it applies the special rules on handling
3136 DN values that are of type PrintableString, as well as RDNs of type
3137 emailAddress where the value has the type ia5String.
3138 [stefank@valicert.com via Richard Levitte]
3140 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
3141 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
3142 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
3143 the bitwise-OR of the two for use by the majority of applications
3144 wanting this behaviour, and update the docs. The documented
3145 behaviour and actual behaviour were inconsistent and had been
3146 changing anyway, so this is more a bug-fix than a behavioural
3148 [Geoff Thorpe, diagnosed by Nadav Har'El]
3150 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
3151 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
3154 *) Fix initialization code race conditions in
3155 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
3156 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
3157 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
3158 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
3159 ssl2_get_cipher_by_char(),
3160 ssl3_get_cipher_by_char().
3161 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
3163 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
3164 the cached sessions are flushed, as the remove_cb() might use ex_data
3165 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
3166 (see [openssl.org #212]).
3167 [Geoff Thorpe, Lutz Jaenicke]
3169 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
3170 length, instead of the encoding length to d2i_ASN1_OBJECT.
3173 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
3175 *) [In 0.9.6g-engine release:]
3176 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
3177 [Lynn Gazis <lgazis@rainbow.com>]
3179 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
3181 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
3182 and get fix the header length calculation.
3183 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
3184 Alon Kantor <alonk@checkpoint.com> (and others),
3187 *) Use proper error handling instead of 'assertions' in buffer
3188 overflow checks added in 0.9.6e. This prevents DoS (the
3189 assertions could call abort()).
3190 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
3192 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
3194 *) Add various sanity checks to asn1_get_length() to reject
3195 the ASN1 length bytes if they exceed sizeof(long), will appear
3196 negative or the content length exceeds the length of the
3198 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3200 *) Fix cipher selection routines: ciphers without encryption had no flags
3201 for the cipher strength set and where therefore not handled correctly
3202 by the selection routines (PR #130).
3205 *) Fix EVP_dsa_sha macro.
3209 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
3210 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
3211 that was added in OpenSSL 0.9.6d.
3213 As the countermeasure turned out to be incompatible with some
3214 broken SSL implementations, the new option is part of SSL_OP_ALL.
3215 SSL_OP_ALL is usually employed when compatibility with weird SSL
3216 implementations is desired (e.g. '-bugs' option to 's_client' and
3217 's_server'), so the new option is automatically set in many
3221 *) Changes in security patch:
3223 Changes marked "(CHATS)" were sponsored by the Defense Advanced
3224 Research Projects Agency (DARPA) and Air Force Research Laboratory,
3225 Air Force Materiel Command, USAF, under agreement number
3228 *) Add various sanity checks to asn1_get_length() to reject
3229 the ASN1 length bytes if they exceed sizeof(long), will appear
3230 negative or the content length exceeds the length of the
3231 supplied buffer. (CAN-2002-0659)
3232 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3234 *) Assertions for various potential buffer overflows, not known to
3236 [Ben Laurie (CHATS)]
3238 *) Various temporary buffers to hold ASCII versions of integers were
3239 too small for 64 bit platforms. (CAN-2002-0655)
3240 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
3242 *) Remote buffer overflow in SSL3 protocol - an attacker could
3243 supply an oversized session ID to a client. (CAN-2002-0656)
3244 [Ben Laurie (CHATS)]
3246 *) Remote buffer overflow in SSL2 protocol - an attacker could
3247 supply an oversized client master key. (CAN-2002-0656)
3248 [Ben Laurie (CHATS)]
3250 Changes between 0.9.6c and 0.9.6d [9 May 2002]
3252 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
3253 encoded as NULL) with id-dsa-with-sha1.
3254 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
3256 *) Check various X509_...() return values in apps/req.c.
3257 [Nils Larsch <nla@trustcenter.de>]
3259 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
3260 an end-of-file condition would erronously be flagged, when the CRLF
3261 was just at the end of a processed block. The bug was discovered when
3262 processing data through a buffering memory BIO handing the data to a
3263 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
3264 <ptsekov@syntrex.com> and Nedelcho Stanev.
3267 *) Implement a countermeasure against a vulnerability recently found
3268 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
3269 before application data chunks to avoid the use of known IVs
3270 with data potentially chosen by the attacker.
3273 *) Fix length checks in ssl3_get_client_hello().
3276 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
3277 to prevent ssl3_read_internal() from incorrectly assuming that
3278 ssl3_read_bytes() found application data while handshake
3279 processing was enabled when in fact s->s3->in_read_app_data was
3280 merely automatically cleared during the initial handshake.
3281 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
3283 *) Fix object definitions for Private and Enterprise: they were not
3284 recognized in their shortname (=lowercase) representation. Extend
3285 obj_dat.pl to issue an error when using undefined keywords instead
3286 of silently ignoring the problem (Svenning Sorensen
3287 <sss@sss.dnsalias.net>).
3290 *) Fix DH_generate_parameters() so that it works for 'non-standard'
3291 generators, i.e. generators other than 2 and 5. (Previously, the
3292 code did not properly initialise the 'add' and 'rem' values to
3293 BN_generate_prime().)
3295 In the new general case, we do not insist that 'generator' is
3296 actually a primitive root: This requirement is rather pointless;
3297 a generator of the order-q subgroup is just as good, if not
3301 *) Map new X509 verification errors to alerts. Discovered and submitted by
3302 Tom Wu <tom@arcot.com>.
3305 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
3306 returning non-zero before the data has been completely received
3307 when using non-blocking I/O.
3308 [Bodo Moeller; problem pointed out by John Hughes]
3310 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
3311 [Ben Laurie, Lutz Jaenicke]
3313 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
3314 Yoram Zahavi <YoramZ@gilian.com>).
3317 *) Add information about CygWin 1.3 and on, and preserve proper
3318 configuration for the versions before that.
3319 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
3321 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
3322 check whether we deal with a copy of a session and do not delete from
3323 the cache in this case. Problem reported by "Izhar Shoshani Levi"
3324 <izhar@checkpoint.com>.
3327 *) Do not store session data into the internal session cache, if it
3328 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
3329 flag is set). Proposed by Aslam <aslam@funk.com>.
3332 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
3336 *) [In 0.9.6d-engine release:]
3337 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3338 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3340 *) Add the configuration target linux-s390x.
3341 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
3343 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
3344 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
3345 variable as an indication that a ClientHello message has been
3346 received. As the flag value will be lost between multiple
3347 invocations of ssl3_accept when using non-blocking I/O, the
3348 function may not be aware that a handshake has actually taken
3349 place, thus preventing a new session from being added to the
3352 To avoid this problem, we now set s->new_session to 2 instead of
3353 using a local variable.
3354 [Lutz Jaenicke, Bodo Moeller]
3356 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
3357 if the SSL_R_LENGTH_MISMATCH error is detected.
3358 [Geoff Thorpe, Bodo Moeller]
3360 *) New 'shared_ldflag' column in Configure platform table.
3363 *) Fix EVP_CIPHER_mode macro.
3364 ["Dan S. Camper" <dan@bti.net>]
3366 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
3367 type, we must throw them away by setting rr->length to 0.
3368 [D P Chang <dpc@qualys.com>]
3370 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
3372 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
3373 <Dominikus.Scherkl@biodata.com>. (The previous implementation
3374 worked incorrectly for those cases where range = 10..._2 and
3375 3*range is two bits longer than range.)
3378 *) Only add signing time to PKCS7 structures if it is not already
3382 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
3383 OBJ_ld_ce should be OBJ_id_ce.
3384 Also some ip-pda OIDs in crypto/objects/objects.txt were
3385 incorrect (cf. RFC 3039).
3386 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
3388 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
3389 returns early because it has nothing to do.
3390 [Andy Schneider <andy.schneider@bjss.co.uk>]
3392 *) [In 0.9.6c-engine release:]
3393 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
3394 [Andy Schneider <andy.schneider@bjss.co.uk>]
3396 *) [In 0.9.6c-engine release:]
3397 Add support for Cryptographic Appliance's keyserver technology.
3398 (Use engine 'keyclient')
3399 [Cryptographic Appliances and Geoff Thorpe]
3401 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
3402 is called via tools/c89.sh because arguments have to be
3403 rearranged (all '-L' options must appear before the first object
3405 [Richard Shapiro <rshapiro@abinitio.com>]
3407 *) [In 0.9.6c-engine release:]
3408 Add support for Broadcom crypto accelerator cards, backported
3410 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
3412 *) [In 0.9.6c-engine release:]
3413 Add support for SureWare crypto accelerator cards from
3414 Baltimore Technologies. (Use engine 'sureware')
3415 [Baltimore Technologies and Mark Cox]
3417 *) [In 0.9.6c-engine release:]
3418 Add support for crypto accelerator cards from Accelerated
3419 Encryption Processing, www.aep.ie. (Use engine 'aep')
3420 [AEP Inc. and Mark Cox]
3422 *) Add a configuration entry for gcc on UnixWare.
3423 [Gary Benson <gbenson@redhat.com>]
3425 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
3426 messages are stored in a single piece (fixed-length part and
3427 variable-length part combined) and fix various bugs found on the way.
3430 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
3431 instead. BIO_gethostbyname() does not know what timeouts are
3432 appropriate, so entries would stay in cache even when they have
3434 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
3436 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
3437 faced with a pathologically small ClientHello fragment that does
3438 not contain client_version: Instead of aborting with an error,
3439 simply choose the highest available protocol version (i.e.,
3440 TLS 1.0 unless it is disabled). In practice, ClientHello
3441 messages are never sent like this, but this change gives us
3442 strictly correct behaviour at least for TLS.
3445 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
3446 never resets s->method to s->ctx->method when called from within
3447 one of the SSL handshake functions.
3448 [Bodo Moeller; problem pointed out by Niko Baric]
3450 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
3451 (sent using the client's version number) if client_version is
3452 smaller than the protocol version in use. Also change
3453 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
3454 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
3455 the client will at least see that alert.
3458 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
3462 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
3463 client receives HelloRequest while in a handshake.
3464 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
3466 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
3467 should end in 'break', not 'goto end' which circuments various
3468 cleanups done in state SSL_ST_OK. But session related stuff
3469 must be disabled for SSL_ST_OK in the case that we just sent a
3472 Also avoid some overhead by not calling ssl_init_wbio_buffer()
3473 before just sending a HelloRequest.
3474 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
3476 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
3477 reveal whether illegal block cipher padding was found or a MAC
3478 verification error occured. (Neither SSLerr() codes nor alerts
3479 are directly visible to potential attackers, but the information
3480 may leak via logfiles.)
3482 Similar changes are not required for the SSL 2.0 implementation
3483 because the number of padding bytes is sent in clear for SSL 2.0,
3484 and the extra bytes are just ignored. However ssl/s2_pkt.c
3485 failed to verify that the purported number of padding bytes is in
3489 *) Add OpenUNIX-8 support including shared libraries
3490 (Boyd Lynn Gerber <gerberb@zenez.com>).
3493 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
3494 'wristwatch attack' using huge encoding parameters (cf.
3495 James H. Manger's CRYPTO 2001 paper). Note that the
3496 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
3497 encoding parameters and hence was not vulnerable.
3500 *) BN_sqr() bug fix.
3501 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
3503 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
3504 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
3505 followed by modular reduction.
3506 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
3508 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
3509 equivalent based on BN_pseudo_rand() instead of BN_rand().
3512 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
3513 This function was broken, as the check for a new client hello message
3514 to handle SGC did not allow these large messages.
3515 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
3518 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
3521 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
3522 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
3525 *) Rework the configuration and shared library support for Tru64 Unix.
3526 The configuration part makes use of modern compiler features and
3527 still retains old compiler behavior for those that run older versions
3528 of the OS. The shared library support part includes a variant that
3529 uses the RPATH feature, and is available through the special
3530 configuration target "alpha-cc-rpath", which will never be selected
3532 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
3534 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
3535 with the same message size as in ssl3_get_certificate_request().
3536 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
3537 messages might inadvertently be reject as too long.
3538 [Petr Lampa <lampa@fee.vutbr.cz>]
3540 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
3543 *) Modified SSL library such that the verify_callback that has been set
3544 specificly for an SSL object with SSL_set_verify() is actually being
3545 used. Before the change, a verify_callback set with this function was
3546 ignored and the verify_callback() set in the SSL_CTX at the time of
3547 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
3548 to allow the necessary settings.
3551 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
3552 explicitly to NULL, as at least on Solaris 8 this seems not always to be
3553 done automatically (in contradiction to the requirements of the C
3554 standard). This made problems when used from OpenSSH.
3557 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
3558 dh->length and always used
3560 BN_rand_range(priv_key, dh->p).
3562 BN_rand_range() is not necessary for Diffie-Hellman, and this
3563 specific range makes Diffie-Hellman unnecessarily inefficient if
3564 dh->length (recommended exponent length) is much smaller than the
3565 length of dh->p. We could use BN_rand_range() if the order of
3566 the subgroup was stored in the DH structure, but we only have
3571 BN_rand(priv_key, l, ...)
3573 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
3579 RSA_eay_public_encrypt
3580 RSA_eay_private_decrypt
3581 RSA_eay_private_encrypt (signing)
3582 RSA_eay_public_decrypt (signature verification)
3584 (default implementations for RSA_public_encrypt,
3585 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
3586 always reject numbers >= n.
3589 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
3590 to synchronize access to 'locking_thread'. This is necessary on
3591 systems where access to 'locking_thread' (an 'unsigned long'
3592 variable) is not atomic.
3595 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
3596 *before* setting the 'crypto_lock_rand' flag. The previous code had
3597 a race condition if 0 is a valid thread ID.
3598 [Travis Vitek <vitek@roguewave.com>]
3600 *) Add support for shared libraries under Irix.
3601 [Albert Chin-A-Young <china@thewrittenword.com>]
3603 *) Add configuration option to build on Linux on both big-endian and
3605 [Ralf Baechle <ralf@uni-koblenz.de>]
3607 *) Add the possibility to create shared libraries on HP-UX.
3610 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
3612 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
3613 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
3614 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
3615 PRNG state recovery was possible based on the output of
3616 one PRNG request appropriately sized to gain knowledge on
3617 'md' followed by enough consecutive 1-byte PRNG requests
3618 to traverse all of 'state'.
3620 1. When updating 'md_local' (the current thread's copy of 'md')
3621 during PRNG output generation, hash all of the previous
3622 'md_local' value, not just the half used for PRNG output.
3624 2. Make the number of bytes from 'state' included into the hash
3625 independent from the number of PRNG bytes requested.
3627 The first measure alone would be sufficient to avoid
3628 Markku-Juhani's attack. (Actually it had never occurred
3629 to me that the half of 'md_local' used for chaining was the
3630 half from which PRNG output bytes were taken -- I had always
3631 assumed that the secret half would be used.) The second
3632 measure makes sure that additional data from 'state' is never
3633 mixed into 'md_local' in small portions; this heuristically
3634 further strengthens the PRNG.
3637 *) Fix crypto/bn/asm/mips3.s.
3640 *) When only the key is given to "enc", the IV is undefined. Print out
3641 an error message in this case.
3644 *) Handle special case when X509_NAME is empty in X509 printing routines.
3647 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
3648 positive and less than q.
3651 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
3652 used: it isn't thread safe and the add_lock_callback should handle
3654 [Paul Rose <Paul.Rose@bridge.com>]
3656 *) Verify that incoming data obeys the block size in
3657 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
3661 [Ulf Möller, Bodo Möller]
3663 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
3664 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
3665 when fixing the server behaviour for backwards-compatible 'client
3666 hello' messages. (Note that the attack is impractical against
3667 SSL 3.0 and TLS 1.0 anyway because length and version checking
3668 means that the probability of guessing a valid ciphertext is
3669 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
3672 Before 0.9.5, the countermeasure (hide the error by generating a
3673 random 'decryption result') did not work properly because
3674 ERR_clear_error() was missing, meaning that SSL_get_error() would
3675 detect the supposedly ignored error.
3677 Both problems are now fixed.
3680 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
3681 (previously it was 1024).
3684 *) Fix for compatibility mode trust settings: ignore trust settings
3685 unless some valid trust or reject settings are present.
3688 *) Fix for blowfish EVP: its a variable length cipher.
3691 *) Fix various bugs related to DSA S/MIME verification. Handle missing
3692 parameters in DSA public key structures and return an error in the
3693 DSA routines if parameters are absent.
3696 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
3697 in the current directory if neither $RANDFILE nor $HOME was set.
3698 RAND_file_name() in 0.9.6a returned NULL in this case. This has
3699 caused some confusion to Windows users who haven't defined $HOME.
3700 Thus RAND_file_name() is changed again: e_os.h can define a
3701 DEFAULT_HOME, which will be used if $HOME is not set.
3702 For Windows, we use "C:"; on other platforms, we still require
3703 environment variables.
3705 *) Move 'if (!initialized) RAND_poll()' into regions protected by
3706 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
3707 having multiple threads call RAND_poll() concurrently.
3710 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
3711 combination of a flag and a thread ID variable.
3712 Otherwise while one thread is in ssleay_rand_bytes (which sets the
3713 flag), *other* threads can enter ssleay_add_bytes without obeying
3714 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
3715 that they do not hold after the first thread unsets add_do_not_lock).
3718 *) Change bctest again: '-x' expressions are not available in all
3722 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
3724 *) Fix a couple of memory leaks in PKCS7_dataDecode()
3725 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
3727 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
3728 the default extension for executables, if any. Also, make the perl
3729 scripts that use symlink() to test if it really exists and use "cp"
3730 if it doesn't. All this made OpenSSL compilable and installable in
3734 *) Fix for asn1_GetSequence() for indefinite length constructed data.
3735 If SEQUENCE is length is indefinite just set c->slen to the total
3736 amount of data available.
3737 [Steve Henson, reported by shige@FreeBSD.org]
3738 [This change does not apply to 0.9.7.]
3740 *) Change bctest to avoid here-documents inside command substitution
3741 (workaround for FreeBSD /bin/sh bug).
3742 For compatibility with Ultrix, avoid shell functions (introduced
3743 in the bctest version that searches along $PATH).
3746 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
3747 with des_encrypt() defined on some operating systems, like Solaris
3751 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
3752 On the Importance of Eliminating Errors in Cryptographic
3753 Computations, J. Cryptology 14 (2001) 2, 101-119,
3754 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
3757 *) MIPS assembler BIGNUM division bug fix.
3760 *) Disabled incorrect Alpha assembler code.
3763 *) Fix PKCS#7 decode routines so they correctly update the length
3764 after reading an EOC for the EXPLICIT tag.
3766 [This change does not apply to 0.9.7.]
3768 *) Fix bug in PKCS#12 key generation routines. This was triggered
3769 if a 3DES key was generated with a 0 initial byte. Include
3770 PKCS12_BROKEN_KEYGEN compilation option to retain the old
3771 (but broken) behaviour.
3774 *) Enhance bctest to search for a working bc along $PATH and print
3776 [Tim Rice <tim@multitalents.net> via Richard Levitte]
3778 *) Fix memory leaks in err.c: free err_data string if necessary;
3779 don't write to the wrong index in ERR_set_error_data.
3782 *) Implement ssl23_peek (analogous to ssl23_read), which previously
3786 *) Replace rdtsc with _emit statements for VC++ version 5.
3787 [Jeremy Cooper <jeremy@baymoo.org>]
3789 *) Make it possible to reuse SSLv2 sessions.
3792 *) In copy_email() check for >= 0 as a return value for
3793 X509_NAME_get_index_by_NID() since 0 is a valid index.
3794 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
3796 *) Avoid coredump with unsupported or invalid public keys by checking if
3797 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
3798 PKCS7_verify() fails with non detached data.
3801 *) Don't use getenv in library functions when run as setuid/setgid.
3802 New function OPENSSL_issetugid().
3805 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
3806 due to incorrect handling of multi-threading:
3808 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
3810 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
3812 3. Count how many times MemCheck_off() has been called so that
3813 nested use can be treated correctly. This also avoids
3814 inband-signalling in the previous code (which relied on the
3815 assumption that thread ID 0 is impossible).
3818 *) Add "-rand" option also to s_client and s_server.
3821 *) Fix CPU detection on Irix 6.x.
3822 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
3823 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
3825 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
3828 [This change does not apply to 0.9.7.]
3830 *) Use the cached encoding of an X509_NAME structure rather than
3831 copying it. This is apparently the reason for the libsafe "errors"
3832 but the code is actually correct.
3835 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
3836 Bleichenbacher's DSA attack.
3837 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
3838 to be set and top=0 forces the highest bit to be set; top=-1 is new
3839 and leaves the highest bit random.
3840 [Ulf Moeller, Bodo Moeller]
3842 *) In the NCONF_...-based implementations for CONF_... queries
3843 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
3844 a temporary CONF structure with the data component set to NULL
3845 (which gives segmentation faults in lh_retrieve).
3846 Instead, use NULL for the CONF pointer in CONF_get_string and
3847 CONF_get_number (which may use environment variables) and directly
3848 return NULL from CONF_get_section.
3851 *) Fix potential buffer overrun for EBCDIC.
3854 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
3855 keyUsage if basicConstraints absent for a CA.
3858 *) Make SMIME_write_PKCS7() write mail header values with a format that
3859 is more generally accepted (no spaces before the semicolon), since
3860 some programs can't parse those values properly otherwise. Also make
3861 sure BIO's that break lines after each write do not create invalid
3865 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
3866 macros previously used would not encode an empty SEQUENCE OF
3867 and break the signature.
3869 [This change does not apply to 0.9.7.]
3871 *) Zero the premaster secret after deriving the master secret in
3875 *) Add some EVP_add_digest_alias registrations (as found in
3876 OpenSSL_add_all_digests()) to SSL_library_init()
3877 aka OpenSSL_add_ssl_algorithms(). This provides improved
3878 compatibility with peers using X.509 certificates
3879 with unconventional AlgorithmIdentifier OIDs.
3882 *) Fix for Irix with NO_ASM.
3883 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
3885 *) ./config script fixes.
3886 [Ulf Moeller, Richard Levitte]
3888 *) Fix 'openssl passwd -1'.
3891 *) Change PKCS12_key_gen_asc() so it can cope with non null
3892 terminated strings whose length is passed in the passlen
3893 parameter, for example from PEM callbacks. This was done
3894 by adding an extra length parameter to asc2uni().
3895 [Steve Henson, reported by <oddissey@samsung.co.kr>]
3897 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
3898 call failed, free the DSA structure.
3901 *) Fix to uni2asc() to cope with zero length Unicode strings.
3902 These are present in some PKCS#12 files.
3905 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
3906 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
3907 when writing a 32767 byte record.
3908 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
3910 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
3911 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
3913 (RSA objects have a reference count access to which is protected
3914 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
3915 so they are meant to be shared between threads.)
3916 [Bodo Moeller, Geoff Thorpe; original patch submitted by
3917 "Reddie, Steven" <Steven.Reddie@ca.com>]
3919 *) Fix a deadlock in CRYPTO_mem_leaks().
3922 *) Use better test patterns in bntest.
3925 *) rand_win.c fix for Borland C.
3928 *) BN_rshift bugfix for n == 0.
3931 *) Add a 'bctest' script that checks for some known 'bc' bugs
3932 so that 'make test' does not abort just because 'bc' is broken.
3935 *) Store verify_result within SSL_SESSION also for client side to
3936 avoid potential security hole. (Re-used sessions on the client side
3937 always resulted in verify_result==X509_V_OK, not using the original
3938 result of the server certificate verification.)
3941 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
3942 SSL3_RT_APPLICATION_DATA, return 0.
3943 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
3947 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
3948 releases, have been re-implemented by renaming the previous
3949 implementations of ssl2_read and ssl3_read to ssl2_read_internal
3950 and ssl3_read_internal, respectively, and adding 'peek' parameters
3951 to them. The new ssl[23]_{read,peek} functions are calls to
3952 ssl[23]_read_internal with the 'peek' flag set appropriately.
3953 A 'peek' parameter has also been added to ssl3_read_bytes, which
3954 does the actual work for ssl3_read_internal.
3957 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
3958 the method-specific "init()" handler. Also clean up ex_data after
3959 calling the method-specific "finish()" handler. Previously, this was
3960 happening the other way round.
3963 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
3964 The previous value, 12, was not always sufficient for BN_mod_exp().
3967 *) Make sure that shared libraries get the internal name engine with
3968 the full version number and not just 0. This should mark the
3969 shared libraries as not backward compatible. Of course, this should
3970 be changed again when we can guarantee backward binary compatibility.
3973 *) Fix typo in get_cert_by_subject() in by_dir.c
3974 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
3976 *) Rework the system to generate shared libraries:
3978 - Make note of the expected extension for the shared libraries and
3979 if there is a need for symbolic links from for example libcrypto.so.0
3980 to libcrypto.so.0.9.7. There is extended info in Configure for
3983 - Make as few rebuilds of the shared libraries as possible.
3985 - Still avoid linking the OpenSSL programs with the shared libraries.
3987 - When installing, install the shared libraries separately from the
3991 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
3993 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
3994 and not in SSL_clear because the latter is also used by the
3995 accept/connect functions; previously, the settings made by
3996 SSL_set_read_ahead would be lost during the handshake.
3997 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
3999 *) Correct util/mkdef.pl to be selective about disabled algorithms.
4000 Previously, it would create entries for disableed algorithms no
4004 *) Added several new manual pages for SSL_* function.
4007 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
4009 *) In ssl23_get_client_hello, generate an error message when faced
4010 with an initial SSL 3.0/TLS record that is too small to contain the
4011 first two bytes of the ClientHello message, i.e. client_version.
4012 (Note that this is a pathologic case that probably has never happened
4013 in real life.) The previous approach was to use the version number
4014 from the record header as a substitute; but our protocol choice
4015 should not depend on that one because it is not authenticated
4016 by the Finished messages.
4019 *) More robust randomness gathering functions for Windows.
4020 [Jeffrey Altman <jaltman@columbia.edu>]
4022 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
4023 not set then we don't setup the error code for issuer check errors
4024 to avoid possibly overwriting other errors which the callback does
4025 handle. If an application does set the flag then we assume it knows
4026 what it is doing and can handle the new informational codes
4030 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
4031 a general "ANY" type, as such it should be able to decode anything
4032 including tagged types. However it didn't check the class so it would
4033 wrongly interpret tagged types in the same way as their universal
4034 counterpart and unknown types were just rejected. Changed so that the
4035 tagged and unknown types are handled in the same way as a SEQUENCE:
4036 that is the encoding is stored intact. There is also a new type
4037 "V_ASN1_OTHER" which is used when the class is not universal, in this
4038 case we have no idea what the actual type is so we just lump them all
4042 *) On VMS, stdout may very well lead to a file that is written to
4043 in a record-oriented fashion. That means that every write() will
4044 write a separate record, which will be read separately by the
4045 programs trying to read from it. This can be very confusing.
4047 The solution is to put a BIO filter in the way that will buffer
4048 text until a linefeed is reached, and then write everything a
4049 line at a time, so every record written will be an actual line,
4050 not chunks of lines and not (usually doesn't happen, but I've
4051 seen it once) several lines in one record. BIO_f_linebuffer() is
4054 Currently, it's a VMS-only method, because that's where it has
4055 been tested well enough.
4058 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
4059 it can return incorrect results.
4060 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
4061 but it was in 0.9.6-beta[12].)
4064 *) Disable the check for content being present when verifying detached
4065 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
4066 include zero length content when signing messages.
4069 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
4070 BIO_ctrl (for BIO pairs).
4073 *) Add DSO method for VMS.
4076 *) Bug fix: Montgomery multiplication could produce results with the
4080 *) Add RPM specification openssl.spec and modify it to build three
4081 packages. The default package contains applications, application
4082 documentation and run-time libraries. The devel package contains
4083 include files, static libraries and function documentation. The
4084 doc package contains the contents of the doc directory. The original
4085 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
4088 *) Add a large number of documentation files for many SSL routines.
4089 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
4091 *) Add a configuration entry for Sony News 4.
4092 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
4094 *) Don't set the two most significant bits to one when generating a
4095 random number < q in the DSA library.
4098 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
4099 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
4100 the underlying transport is blocking) if a handshake took place.
4101 (The default behaviour is needed by applications such as s_client
4102 and s_server that use select() to determine when to use SSL_read;
4103 but for applications that know in advance when to expect data, it
4104 just makes things more complicated.)
4107 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
4111 *) Add a few more EBCDIC conditionals that make `req' and `x509'
4112 work better on such systems.
4113 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
4115 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
4116 Update PKCS12_parse() so it copies the friendlyName and the
4117 keyid to the certificates aux info.
4120 *) Fix bug in PKCS7_verify() which caused an infinite loop
4121 if there was more than one signature.
4122 [Sven Uszpelkat <su@celocom.de>]
4124 *) Major change in util/mkdef.pl to include extra information
4125 about each symbol, as well as presentig variables as well
4126 as functions. This change means that there's n more need
4127 to rebuild the .num files when some algorithms are excluded.
4130 *) Allow the verify time to be set by an application,
4131 rather than always using the current time.
4134 *) Phase 2 verify code reorganisation. The certificate
4135 verify code now looks up an issuer certificate by a
4136 number of criteria: subject name, authority key id
4137 and key usage. It also verifies self signed certificates
4138 by the same criteria. The main comparison function is
4139 X509_check_issued() which performs these checks.
4141 Lot of changes were necessary in order to support this
4142 without completely rewriting the lookup code.
4144 Authority and subject key identifier are now cached.
4146 The LHASH 'certs' is X509_STORE has now been replaced
4147 by a STACK_OF(X509_OBJECT). This is mainly because an
4148 LHASH can't store or retrieve multiple objects with
4149 the same hash value.
4151 As a result various functions (which were all internal
4152 use only) have changed to handle the new X509_STORE
4153 structure. This will break anything that messed round
4154 with X509_STORE internally.
4156 The functions X509_STORE_add_cert() now checks for an
4157 exact match, rather than just subject name.
4159 The X509_STORE API doesn't directly support the retrieval
4160 of multiple certificates matching a given criteria, however
4161 this can be worked round by performing a lookup first
4162 (which will fill the cache with candidate certificates)
4163 and then examining the cache for matches. This is probably
4164 the best we can do without throwing out X509_LOOKUP
4165 entirely (maybe later...).
4167 The X509_VERIFY_CTX structure has been enhanced considerably.
4169 All certificate lookup operations now go via a get_issuer()
4170 callback. Although this currently uses an X509_STORE it
4171 can be replaced by custom lookups. This is a simple way
4172 to bypass the X509_STORE hackery necessary to make this
4173 work and makes it possible to use more efficient techniques
4174 in future. A very simple version which uses a simple
4175 STACK for its trusted certificate store is also provided
4176 using X509_STORE_CTX_trusted_stack().
4178 The verify_cb() and verify() callbacks now have equivalents
4179 in the X509_STORE_CTX structure.
4181 X509_STORE_CTX also has a 'flags' field which can be used
4182 to customise the verify behaviour.
4185 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
4186 excludes S/MIME capabilities.
4189 *) When a certificate request is read in keep a copy of the
4190 original encoding of the signed data and use it when outputing
4191 again. Signatures then use the original encoding rather than
4192 a decoded, encoded version which may cause problems if the
4193 request is improperly encoded.
4196 *) For consistency with other BIO_puts implementations, call
4197 buffer_write(b, ...) directly in buffer_puts instead of calling
4200 In BIO_puts, increment b->num_write as in BIO_write.
4201 [Peter.Sylvester@EdelWeb.fr]
4203 *) Fix BN_mul_word for the case where the word is 0. (We have to use
4204 BN_zero, we may not return a BIGNUM with an array consisting of
4208 *) Avoid calling abort() from within the library when problems are
4209 detected, except if preprocessor symbols have been defined
4210 (such as REF_CHECK, BN_DEBUG etc.).
4213 *) New openssl application 'rsautl'. This utility can be
4214 used for low level RSA operations. DER public key
4215 BIO/fp routines also added.
4218 *) New Configure entry and patches for compiling on QNX 4.
4219 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
4221 *) A demo state-machine implementation was sponsored by
4222 Nuron (http://www.nuron.com/) and is now available in
4223 demos/state_machine.
4226 *) New options added to the 'dgst' utility for signature
4227 generation and verification.
4230 *) Unrecognized PKCS#7 content types are now handled via a
4231 catch all ASN1_TYPE structure. This allows unsupported
4232 types to be stored as a "blob" and an application can
4233 encode and decode it manually.
4236 *) Fix various signed/unsigned issues to make a_strex.c
4238 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
4240 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
4241 length if passed a buffer. ASN1_INTEGER_to_BN failed
4242 if passed a NULL BN and its argument was negative.
4243 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
4245 *) Modification to PKCS#7 encoding routines to output definite
4246 length encoding. Since currently the whole structures are in
4247 memory there's not real point in using indefinite length
4248 constructed encoding. However if OpenSSL is compiled with
4249 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
4252 *) Added BIO_vprintf() and BIO_vsnprintf().
4255 *) Added more prefixes to parse for in the the strings written
4256 through a logging bio, to cover all the levels that are available
4257 through syslog. The prefixes are now:
4259 PANIC, EMERG, EMR => LOG_EMERG
4260 ALERT, ALR => LOG_ALERT
4261 CRIT, CRI => LOG_CRIT
4262 ERROR, ERR => LOG_ERR
4263 WARNING, WARN, WAR => LOG_WARNING
4264 NOTICE, NOTE, NOT => LOG_NOTICE
4265 INFO, INF => LOG_INFO
4266 DEBUG, DBG => LOG_DEBUG
4268 and as before, if none of those prefixes are present at the
4269 beginning of the string, LOG_ERR is chosen.
4271 On Win32, the LOG_* levels are mapped according to this:
4273 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
4274 LOG_WARNING => EVENTLOG_WARNING_TYPE
4275 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
4279 *) Made it possible to reconfigure with just the configuration
4280 argument "reconf" or "reconfigure". The command line arguments
4281 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
4282 and are retrieved from there when reconfiguring.
4286 [Assar Westerlund <assar@sics.se>, Richard Levitte]
4288 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
4291 *) The obj_dat.pl script was messing up the sorting of object
4292 names. The reason was that it compared the quoted version
4293 of strings as a result "OCSP" > "OCSP Signing" because
4294 " > SPACE. Changed script to store unquoted versions of
4295 names and add quotes on output. It was also omitting some
4296 names from the lookup table if they were given a default
4297 value (that is if SN is missing it is given the same
4298 value as LN and vice versa), these are now added on the
4299 grounds that if an object has a name we should be able to
4300 look it up. Finally added warning output when duplicate
4301 short or long names are found.
4304 *) Changes needed for Tandem NSK.
4305 [Scott Uroff <scott@xypro.com>]
4307 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
4308 RSA_padding_check_SSLv23(), special padding was never detected
4309 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
4310 version rollback attacks was not effective.
4312 In s23_clnt.c, don't use special rollback-attack detection padding
4313 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
4314 client; similarly, in s23_srvr.c, don't do the rollback check if
4315 SSL 2.0 is the only protocol enabled in the server.
4318 *) Make it possible to get hexdumps of unprintable data with 'openssl
4319 asn1parse'. By implication, the functions ASN1_parse_dump() and
4320 BIO_dump_indent() are added.
4323 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
4324 these print out strings and name structures based on various
4325 flags including RFC2253 support and proper handling of
4326 multibyte characters. Added options to the 'x509' utility
4327 to allow the various flags to be set.
4330 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
4331 Also change the functions X509_cmp_current_time() and
4332 X509_gmtime_adj() work with an ASN1_TIME structure,
4333 this will enable certificates using GeneralizedTime in validity
4334 dates to be checked.
4337 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
4338 negative public key encodings) on by default,
4339 NO_NEG_PUBKEY_BUG can be set to disable it.
4342 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
4343 content octets. An i2c_ASN1_OBJECT is unnecessary because
4344 the encoding can be trivially obtained from the structure.
4347 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
4348 not read locks (CRYPTO_r_[un]lock).
4351 *) A first attempt at creating official support for shared
4352 libraries through configuration. I've kept it so the
4353 default is static libraries only, and the OpenSSL programs
4354 are always statically linked for now, but there are
4355 preparations for dynamic linking in place.
4356 This has been tested on Linux and Tru64.
4359 *) Randomness polling function for Win9x, as described in:
4360 Peter Gutmann, Software Generation of Practically Strong
4364 *) Fix so PRNG is seeded in req if using an already existing
4368 *) New options to smime application. -inform and -outform
4369 allow alternative formats for the S/MIME message including
4370 PEM and DER. The -content option allows the content to be
4371 specified separately. This should allow things like Netscape
4372 form signing output easier to verify.
4375 *) Fix the ASN1 encoding of tags using the 'long form'.
4378 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
4379 STRING types. These convert content octets to and from the
4380 underlying type. The actual tag and length octets are
4381 already assumed to have been read in and checked. These
4382 are needed because all other string types have virtually
4383 identical handling apart from the tag. By having versions
4384 of the ASN1 functions that just operate on content octets
4385 IMPLICIT tagging can be handled properly. It also allows
4386 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
4387 and ASN1_INTEGER are identical apart from the tag.
4390 *) Change the handling of OID objects as follows:
4392 - New object identifiers are inserted in objects.txt, following
4393 the syntax given in objects.README.
4394 - objects.pl is used to process obj_mac.num and create a new
4396 - obj_dat.pl is used to create a new obj_dat.h, using the data in
4399 This is currently kind of a hack, and the perl code in objects.pl
4400 isn't very elegant, but it works as I intended. The simplest way
4401 to check that it worked correctly is to look in obj_dat.h and
4402 check the array nid_objs and make sure the objects haven't moved
4403 around (this is important!). Additions are OK, as well as
4404 consistent name changes.
4407 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
4410 *) Addition of the command line parameter '-rand file' to 'openssl req'.
4411 The given file adds to whatever has already been seeded into the
4412 random pool through the RANDFILE configuration file option or
4413 environment variable, or the default random state file.
4416 *) mkstack.pl now sorts each macro group into lexical order.
4417 Previously the output order depended on the order the files
4418 appeared in the directory, resulting in needless rewriting
4422 *) Patches to make OpenSSL compile under Win32 again. Mostly
4423 work arounds for the VC++ problem that it treats func() as
4424 func(void). Also stripped out the parts of mkdef.pl that
4425 added extra typesafe functions: these no longer exist.
4428 *) Reorganisation of the stack code. The macros are now all
4429 collected in safestack.h . Each macro is defined in terms of
4430 a "stack macro" of the form SKM_<name>(type, a, b). The
4431 DEBUG_SAFESTACK is now handled in terms of function casts,
4432 this has the advantage of retaining type safety without the
4433 use of additional functions. If DEBUG_SAFESTACK is not defined
4434 then the non typesafe macros are used instead. Also modified the
4435 mkstack.pl script to handle the new form. Needs testing to see
4436 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
4437 the default if no major problems. Similar behaviour for ASN1_SET_OF
4438 and PKCS12_STACK_OF.
4441 *) When some versions of IIS use the 'NET' form of private key the
4442 key derivation algorithm is different. Normally MD5(password) is
4443 used as a 128 bit RC4 key. In the modified case
4444 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
4445 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
4446 as the old Netscape_RSA functions except they have an additional
4447 'sgckey' parameter which uses the modified algorithm. Also added
4448 an -sgckey command line option to the rsa utility. Thanks to
4449 Adrian Peck <bertie@ncipher.com> for posting details of the modified
4450 algorithm to openssl-dev.
4453 *) The evp_local.h macros were using 'c.##kname' which resulted in
4454 invalid expansion on some systems (SCO 5.0.5 for example).
4455 Corrected to 'c.kname'.
4456 [Phillip Porch <root@theporch.com>]
4458 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
4459 a STACK of email addresses from a certificate or request, these look
4460 in the subject name and the subject alternative name extensions and
4461 omit any duplicate addresses.
4464 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
4465 This makes DSA verification about 2 % faster.
4468 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
4469 (meaning that now 2^5 values will be precomputed, which is only 4 KB
4470 plus overhead for 1024 bit moduli).
4471 This makes exponentiations about 0.5 % faster for 1024 bit
4472 exponents (as measured by "openssl speed rsa2048").
4475 *) Rename memory handling macros to avoid conflicts with other
4477 Malloc => OPENSSL_malloc
4478 Malloc_locked => OPENSSL_malloc_locked
4479 Realloc => OPENSSL_realloc
4480 Free => OPENSSL_free
4483 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
4484 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
4487 *) CygWin32 support.
4488 [John Jarvie <jjarvie@newsguy.com>]
4490 *) The type-safe stack code has been rejigged. It is now only compiled
4491 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
4492 by default all type-specific stack functions are "#define"d back to
4493 standard stack functions. This results in more streamlined output
4494 but retains the type-safety checking possibilities of the original
4498 *) The STACK code has been cleaned up, and certain type declarations
4499 that didn't make a lot of sense have been brought in line. This has
4500 also involved a cleanup of sorts in safestack.h to more correctly
4501 map type-safe stack functions onto their plain stack counterparts.
4502 This work has also resulted in a variety of "const"ifications of
4503 lots of the code, especially "_cmp" operations which should normally
4504 be prototyped with "const" parameters anyway.
4507 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
4508 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
4509 (The PRNG state consists of two parts, the large pool 'state' and 'md',
4510 where all of 'md' is used each time the PRNG is used, but 'state'
4511 is used only indexed by a cyclic counter. As entropy may not be
4512 well distributed from the beginning, 'md' is important as a
4513 chaining variable. However, the output function chains only half
4514 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
4515 all of 'md', and seeding with STATE_SIZE dummy bytes will result
4516 in all of 'state' being rewritten, with the new values depending
4517 on virtually all of 'md'. This overcomes the 80 bit limitation.)
4520 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
4521 the handshake is continued after ssl_verify_cert_chain();
4522 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
4523 can lead to 'unexplainable' connection aborts later.
4524 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
4526 *) Major EVP API cipher revision.
4527 Add hooks for extra EVP features. This allows various cipher
4528 parameters to be set in the EVP interface. Support added for variable
4529 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
4530 setting of RC2 and RC5 parameters.
4532 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
4535 Remove lots of duplicated code from the EVP library. For example *every*
4536 cipher init() function handles the 'iv' in the same way according to the
4537 cipher mode. They also all do nothing if the 'key' parameter is NULL and
4538 for CFB and OFB modes they zero ctx->num.
4540 New functionality allows removal of S/MIME code RC2 hack.
4542 Most of the routines have the same form and so can be declared in terms
4545 By shifting this to the top level EVP_CipherInit() it can be removed from
4546 all individual ciphers. If the cipher wants to handle IVs or keys
4547 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
4550 Change lots of functions like EVP_EncryptUpdate() to now return a
4551 value: although software versions of the algorithms cannot fail
4552 any installed hardware versions can.
4555 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
4556 this option is set, tolerate broken clients that send the negotiated
4557 protocol version number instead of the requested protocol version
4561 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
4562 i.e. non-zero for export ciphersuites, zero otherwise.
4563 Previous versions had this flag inverted, inconsistent with
4564 rsa_tmp_cb (..._TMP_RSA_CB).
4565 [Bodo Moeller; problem reported by Amit Chopra]
4567 *) Add missing DSA library text string. Work around for some IIS
4568 key files with invalid SEQUENCE encoding.
4571 *) Add a document (doc/standards.txt) that list all kinds of standards
4572 and so on that are implemented in OpenSSL.
4575 *) Enhance c_rehash script. Old version would mishandle certificates
4576 with the same subject name hash and wouldn't handle CRLs at all.
4577 Added -fingerprint option to crl utility, to support new c_rehash
4581 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
4584 *) Fix for SSL server purpose checking. Server checking was
4585 rejecting certificates which had extended key usage present
4586 but no ssl client purpose.
4587 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
4589 *) Make PKCS#12 code work with no password. The PKCS#12 spec
4590 is a little unclear about how a blank password is handled.
4591 Since the password in encoded as a BMPString with terminating
4592 double NULL a zero length password would end up as just the
4593 double NULL. However no password at all is different and is
4594 handled differently in the PKCS#12 key generation code. NS
4595 treats a blank password as zero length. MSIE treats it as no
4596 password on export: but it will try both on import. We now do
4597 the same: PKCS12_parse() tries zero length and no password if
4598 the password is set to "" or NULL (NULL is now a valid password:
4599 it wasn't before) as does the pkcs12 application.
4602 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
4603 perror when PEM_read_bio_X509_REQ fails, the error message must
4604 be obtained from the error queue.
4607 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
4608 it in ERR_remove_state if appropriate, and change ERR_get_state
4609 accordingly to avoid race conditions (this is necessary because
4610 thread_hash is no longer constant once set).
4613 *) Bugfix for linux-elf makefile.one.
4616 *) RSA_get_default_method() will now cause a default
4617 RSA_METHOD to be chosen if one doesn't exist already.
4618 Previously this was only set during a call to RSA_new()
4619 or RSA_new_method(NULL) meaning it was possible for
4620 RSA_get_default_method() to return NULL.
4623 *) Added native name translation to the existing DSO code
4624 that will convert (if the flag to do so is set) filenames
4625 that are sufficiently small and have no path information
4626 into a canonical native form. Eg. "blah" converted to
4627 "libblah.so" or "blah.dll" etc.
4630 *) New function ERR_error_string_n(e, buf, len) which is like
4631 ERR_error_string(e, buf), but writes at most 'len' bytes
4632 including the 0 terminator. For ERR_error_string_n, 'buf'
4634 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
4636 *) CONF library reworked to become more general. A new CONF
4637 configuration file reader "class" is implemented as well as a
4638 new functions (NCONF_*, for "New CONF") to handle it. The now
4639 old CONF_* functions are still there, but are reimplemented to
4640 work in terms of the new functions. Also, a set of functions
4641 to handle the internal storage of the configuration data is
4642 provided to make it easier to write new configuration file
4643 reader "classes" (I can definitely see something reading a
4644 configuration file in XML format, for example), called _CONF_*,
4645 or "the configuration storage API"...
4647 The new configuration file reading functions are:
4649 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
4650 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
4652 NCONF_default, NCONF_WIN32
4654 NCONF_dump_fp, NCONF_dump_bio
4656 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
4657 NCONF_new creates a new CONF object. This works in the same way
4658 as other interfaces in OpenSSL, like the BIO interface.
4659 NCONF_dump_* dump the internal storage of the configuration file,
4660 which is useful for debugging. All other functions take the same
4661 arguments as the old CONF_* functions wth the exception of the
4662 first that must be a `CONF *' instead of a `LHASH *'.
4664 To make it easer to use the new classes with the old CONF_* functions,
4665 the function CONF_set_default_method is provided.
4668 *) Add '-tls1' option to 'openssl ciphers', which was already
4669 mentioned in the documentation but had not been implemented.
4670 (This option is not yet really useful because even the additional
4671 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
4674 *) Initial DSO code added into libcrypto for letting OpenSSL (and
4675 OpenSSL-based applications) load shared libraries and bind to
4676 them in a portable way.
4677 [Geoff Thorpe, with contributions from Richard Levitte]
4679 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
4681 *) Make sure _lrotl and _lrotr are only used with MSVC.
4683 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
4684 (the default implementation of RAND_status).
4686 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
4687 to '-clrext' (= clear extensions), as intended and documented.
4688 [Bodo Moeller; inconsistency pointed out by Michael Attili
4691 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
4692 was larger than the MD block size.
4693 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
4695 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
4696 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
4697 using the passed key: if the passed key was a private key the result
4698 of X509_print(), for example, would be to print out all the private key
4702 *) des_quad_cksum() byte order bug fix.
4703 [Ulf Möller, using the problem description in krb4-0.9.7, where
4704 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
4706 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
4708 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
4710 *) For easily testing in shell scripts whether some command
4711 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
4712 returns with exit code 0 iff no command of the given name is available.
4713 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
4714 the output goes to stdout and nothing is printed to stderr.
4715 Additional arguments are always ignored.
4717 Since for each cipher there is a command of the same name,
4718 the 'no-cipher' compilation switches can be tested this way.
4720 ('openssl no-XXX' is not able to detect pseudo-commands such
4721 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
4724 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
4727 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
4728 is set; it will be thrown away anyway because each handshake creates
4730 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
4731 to parameters -- in previous versions (since OpenSSL 0.9.3) the
4732 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
4733 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
4736 *) New s_client option -ign_eof: EOF at stdin is ignored, and
4737 'Q' and 'R' lose their special meanings (quit/renegotiate).
4738 This is part of what -quiet does; unlike -quiet, -ign_eof
4739 does not suppress any output.
4742 *) Add compatibility options to the purpose and trust code. The
4743 purpose X509_PURPOSE_ANY is "any purpose" which automatically
4744 accepts a certificate or CA, this was the previous behaviour,
4745 with all the associated security issues.
4747 X509_TRUST_COMPAT is the old trust behaviour: only and
4748 automatically trust self signed roots in certificate store. A
4749 new trust setting X509_TRUST_DEFAULT is used to specify that
4750 a purpose has no associated trust setting and it should instead
4751 use the value in the default purpose.
4754 *) Fix the PKCS#8 DSA private key code so it decodes keys again
4755 and fix a memory leak.
4758 *) In util/mkerr.pl (which implements 'make errors'), preserve
4759 reason strings from the previous version of the .c file, as
4760 the default to have only downcase letters (and digits) in
4761 automatically generated reasons codes is not always appropriate.
4764 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
4765 using strerror. Previously, ERR_reason_error_string() returned
4766 library names as reason strings for SYSerr; but SYSerr is a special
4767 case where small numbers are errno values, not library numbers.
4770 *) Add '-dsaparam' option to 'openssl dhparam' application. This
4771 converts DSA parameters into DH parameters. (When creating parameters,
4772 DSA_generate_parameters is used.)
4775 *) Include 'length' (recommended exponent length) in C code generated
4776 by 'openssl dhparam -C'.
4779 *) The second argument to set_label in perlasm was already being used
4780 so couldn't be used as a "file scope" flag. Moved to third argument
4784 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
4785 instead of RAND_bytes for encryption IVs and salts.
4788 *) Include RAND_status() into RAND_METHOD instead of implementing
4789 it only for md_rand.c Otherwise replacing the PRNG by calling
4790 RAND_set_rand_method would be impossible.
4793 *) Don't let DSA_generate_key() enter an infinite loop if the random
4794 number generation fails.
4797 *) New 'rand' application for creating pseudo-random output.
4800 *) Added configuration support for Linux/IA64
4801 [Rolf Haberrecker <rolf@suse.de>]
4803 *) Assembler module support for Mingw32.
4806 *) Shared library support for HPUX (in shlib/).
4807 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
4809 *) Shared library support for Solaris gcc.
4810 [Lutz Behnke <behnke@trustcenter.de>]
4812 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
4814 *) PKCS7_encrypt() was adding text MIME headers twice because they
4815 were added manually and by SMIME_crlf_copy().
4818 *) In bntest.c don't call BN_rand with zero bits argument.
4819 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
4821 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
4822 case was implemented. This caused BN_div_recp() to fail occasionally.
4825 *) Add an optional second argument to the set_label() in the perl
4826 assembly language builder. If this argument exists and is set
4827 to 1 it signals that the assembler should use a symbol whose
4828 scope is the entire file, not just the current function. This
4829 is needed with MASM which uses the format label:: for this scope.
4830 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
4832 *) Change the ASN1 types so they are typedefs by default. Before
4833 almost all types were #define'd to ASN1_STRING which was causing
4834 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
4838 *) Change names of new functions to the new get1/get0 naming
4839 convention: After 'get1', the caller owns a reference count
4840 and has to call ..._free; 'get0' returns a pointer to some
4841 data structure without incrementing reference counters.
4842 (Some of the existing 'get' functions increment a reference
4843 counter, some don't.)
4844 Similarly, 'set1' and 'add1' functions increase reference
4845 counters or duplicate objects.
4848 *) Allow for the possibility of temp RSA key generation failure:
4849 the code used to assume it always worked and crashed on failure.
4852 *) Fix potential buffer overrun problem in BIO_printf().
4853 [Ulf Möller, using public domain code by Patrick Powell; problem
4854 pointed out by David Sacerdote <das33@cornell.edu>]
4856 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
4857 RAND_egd() and RAND_status(). In the command line application,
4858 the EGD socket can be specified like a seed file using RANDFILE
4862 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
4863 Some CAs (e.g. Verisign) distribute certificates in this form.
4866 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
4867 list to exclude them. This means that no special compilation option
4868 is needed to use anonymous DH: it just needs to be included in the
4872 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
4873 EVP_MD_type. The old functionality is available in a new macro called
4874 EVP_MD_md(). Change code that uses it and update docs.
4877 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
4878 where the 'void *' argument is replaced by a function pointer argument.
4879 Previously 'void *' was abused to point to functions, which works on
4880 many platforms, but is not correct. As these functions are usually
4881 called by macros defined in OpenSSL header files, most source code
4882 should work without changes.
4885 *) <openssl/opensslconf.h> (which is created by Configure) now contains
4886 sections with information on -D... compiler switches used for
4887 compiling the library so that applications can see them. To enable
4888 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
4889 must be defined. E.g.,
4890 #define OPENSSL_ALGORITHM_DEFINES
4891 #include <openssl/opensslconf.h>
4892 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
4893 [Richard Levitte, Ulf and Bodo Möller]
4895 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
4899 *) Change the 'other' type in certificate aux info to a STACK_OF
4900 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
4901 the required ASN1 format: arbitrary types determined by an OID.
4904 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
4905 argument to 'req'. This is not because the function is newer or
4906 better than others it just uses the work 'NEW' in the certificate
4907 request header lines. Some software needs this.
4910 *) Reorganise password command line arguments: now passwords can be
4911 obtained from various sources. Delete the PEM_cb function and make
4912 it the default behaviour: i.e. if the callback is NULL and the
4913 usrdata argument is not NULL interpret it as a null terminated pass
4914 phrase. If usrdata and the callback are NULL then the pass phrase
4915 is prompted for as usual.
4918 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
4919 the support is automatically enabled. The resulting binaries will
4920 autodetect the card and use it if present.
4921 [Ben Laurie and Compaq Inc.]
4923 *) Work around for Netscape hang bug. This sends certificate request
4924 and server done in one record. Since this is perfectly legal in the
4925 SSL/TLS protocol it isn't a "bug" option and is on by default. See
4926 the bugs/SSLv3 entry for more info.
4929 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
4932 *) Add -rand argument to smime and pkcs12 applications and read/write
4936 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
4939 *) Add command line password options to the remaining applications.
4942 *) Bug fix for BN_div_recp() for numerators with an even number of
4946 *) More tests in bntest.c, and changed test_bn output.
4949 *) ./config recognizes MacOS X now.
4952 *) Bug fix for BN_div() when the first words of num and divsor are
4953 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
4956 *) Add support for various broken PKCS#8 formats, and command line
4957 options to produce them.
4960 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
4961 get temporary BIGNUMs from a BN_CTX.
4964 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
4968 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
4969 include a #define from the old name to the new. The original intent
4970 was that statically linked binaries could for example just call
4971 SSLeay_add_all_ciphers() to just add ciphers to the table and not
4972 link with digests. This never worked becayse SSLeay_add_all_digests()
4973 and SSLeay_add_all_ciphers() were in the same source file so calling
4974 one would link with the other. They are now in separate source files.
4977 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
4980 *) Use a less unusual form of the Miller-Rabin primality test (it used
4981 a binary algorithm for exponentiation integrated into the Miller-Rabin
4982 loop, our standard modexp algorithms are faster).
4985 *) Support for the EBCDIC character set completed.
4986 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
4988 *) Source code cleanups: use const where appropriate, eliminate casts,
4989 use void * instead of char * in lhash.
4992 *) Bugfix: ssl3_send_server_key_exchange was not restartable
4993 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
4994 this the server could overwrite ephemeral keys that the client
4998 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
4999 using 50 iterations of the Rabin-Miller test.
5001 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
5002 iterations of the Rabin-Miller test as required by the appendix
5003 to FIPS PUB 186[-1]) instead of DSA_is_prime.
5004 As BN_is_prime_fasttest includes trial division, DSA parameter
5005 generation becomes much faster.
5007 This implies a change for the callback functions in DSA_is_prime
5008 and DSA_generate_parameters: The callback function is called once
5009 for each positive witness in the Rabin-Miller test, not just
5010 occasionally in the inner loop; and the parameters to the
5011 callback function now provide an iteration count for the outer
5012 loop rather than for the current invocation of the inner loop.
5013 DSA_generate_parameters additionally can call the callback
5014 function with an 'iteration count' of -1, meaning that a
5015 candidate has passed the trial division test (when q is generated
5016 from an application-provided seed, trial division is skipped).
5019 *) New function BN_is_prime_fasttest that optionally does trial
5020 division before starting the Rabin-Miller test and has
5021 an additional BN_CTX * argument (whereas BN_is_prime always
5022 has to allocate at least one BN_CTX).
5023 'callback(1, -1, cb_arg)' is called when a number has passed the
5024 trial division stage.
5027 *) Fix for bug in CRL encoding. The validity dates weren't being handled
5031 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
5034 *) New function BN_pseudo_rand().
5037 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
5038 bignum version of BN_from_montgomery() with the working code from
5039 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
5043 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
5044 made it impossible to use the same SSL_SESSION data structure in
5045 SSL2 clients in multiple threads.
5048 *) The return value of RAND_load_file() no longer counts bytes obtained
5049 by stat(). RAND_load_file(..., -1) is new and uses the complete file
5050 to seed the PRNG (previously an explicit byte count was required).
5051 [Ulf Möller, Bodo Möller]
5053 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
5054 used (char *) instead of (void *) and had casts all over the place.
5057 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
5060 *) Retain source code compatibility for BN_prime_checks macro:
5061 BN_is_prime(..., BN_prime_checks, ...) now uses
5062 BN_prime_checks_for_size to determine the appropriate number of
5063 Rabin-Miller iterations.
5066 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
5067 DH_CHECK_P_NOT_SAFE_PRIME.
5068 (Check if this is true? OpenPGP calls them "strong".)
5071 *) Merge the functionality of "dh" and "gendh" programs into a new program
5072 "dhparam". The old programs are retained for now but will handle DH keys
5073 (instead of parameters) in future.
5076 *) Make the ciphers, s_server and s_client programs check the return values
5077 when a new cipher list is set.
5080 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
5081 ciphers. Before when the 56bit ciphers were enabled the sorting was
5084 The syntax for the cipher sorting has been extended to support sorting by
5085 cipher-strength (using the strength_bits hard coded in the tables).
5086 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
5088 Fix a bug in the cipher-command parser: when supplying a cipher command
5089 string with an "undefined" symbol (neither command nor alphanumeric
5090 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
5091 an error is flagged.
5093 Due to the strength-sorting extension, the code of the
5094 ssl_create_cipher_list() function was completely rearranged. I hope that
5095 the readability was also increased :-)
5096 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5098 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
5099 for the first serial number and places 2 in the serial number file. This
5100 avoids problems when the root CA is created with serial number zero and
5101 the first user certificate has the same issuer name and serial number
5105 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
5106 the new code. Add documentation for this stuff.
5109 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
5110 X509_*() to X509at_*() on the grounds that they don't handle X509
5111 structures and behave in an analagous way to the X509v3 functions:
5112 they shouldn't be called directly but wrapper functions should be used
5115 So we also now have some wrapper functions that call the X509at functions
5116 when passed certificate requests. (TO DO: similar things can be done with
5117 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
5118 things. Some of these need some d2i or i2d and print functionality
5119 because they handle more complex structures.)
5122 *) Add missing #ifndefs that caused missing symbols when building libssl
5123 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
5124 NO_RSA in ssl/s2*.c.
5125 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
5127 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
5128 has a return value which indicates the quality of the random data
5129 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
5130 error queue. New function RAND_pseudo_bytes() generates output that is
5131 guaranteed to be unique but not unpredictable. RAND_add is like
5132 RAND_seed, but takes an extra argument for an entropy estimate
5133 (RAND_seed always assumes full entropy).
5136 *) Do more iterations of Rabin-Miller probable prime test (specifically,
5137 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
5138 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
5139 in crypto/bn/bn_prime.c for the complete table). This guarantees a
5140 false-positive rate of at most 2^-80 for random input.
5143 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
5146 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
5147 in the 0.9.5 release), this returns the chain
5148 from an X509_CTX structure with a dup of the stack and all
5149 the X509 reference counts upped: so the stack will exist
5150 after X509_CTX_cleanup() has been called. Modify pkcs12.c
5153 Also make SSL_SESSION_print() print out the verify return
5157 *) Add manpage for the pkcs12 command. Also change the default
5158 behaviour so MAC iteration counts are used unless the new
5159 -nomaciter option is used. This improves file security and
5160 only older versions of MSIE (4.0 for example) need it.
5163 *) Honor the no-xxx Configure options when creating .DEF files.
5166 *) Add PKCS#10 attributes to field table: challengePassword,
5167 unstructuredName and unstructuredAddress. These are taken from
5168 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
5169 international characters are used.
5171 More changes to X509_ATTRIBUTE code: allow the setting of types
5172 based on strings. Remove the 'loc' parameter when adding
5173 attributes because these will be a SET OF encoding which is sorted
5177 *) Initial changes to the 'req' utility to allow request generation
5178 automation. This will allow an application to just generate a template
5179 file containing all the field values and have req construct the
5182 Initial support for X509_ATTRIBUTE handling. Stacks of these are
5183 used all over the place including certificate requests and PKCS#7
5184 structures. They are currently handled manually where necessary with
5185 some primitive wrappers for PKCS#7. The new functions behave in a
5186 manner analogous to the X509 extension functions: they allow
5187 attributes to be looked up by NID and added.
5189 Later something similar to the X509V3 code would be desirable to
5190 automatically handle the encoding, decoding and printing of the
5191 more complex types. The string types like challengePassword can
5192 be handled by the string table functions.
5194 Also modified the multi byte string table handling. Now there is
5195 a 'global mask' which masks out certain types. The table itself
5196 can use the flag STABLE_NO_MASK to ignore the mask setting: this
5197 is useful when for example there is only one permissible type
5198 (as in countryName) and using the mask might result in no valid
5202 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
5203 SSL_get_peer_finished to allow applications to obtain the latest
5204 Finished messages sent to the peer or expected from the peer,
5205 respectively. (SSL_get_peer_finished is usually the Finished message
5206 actually received from the peer, otherwise the protocol will be aborted.)
5208 As the Finished message are message digests of the complete handshake
5209 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
5210 be used for external authentication procedures when the authentication
5211 provided by SSL/TLS is not desired or is not enough.
5214 *) Enhanced support for Alpha Linux is added. Now ./config checks if
5215 the host supports BWX extension and if Compaq C is present on the
5216 $PATH. Just exploiting of the BWX extension results in 20-30%
5217 performance kick for some algorithms, e.g. DES and RC4 to mention
5218 a couple. Compaq C in turn generates ~20% faster code for MD5 and
5222 *) Add support for MS "fast SGC". This is arguably a violation of the
5223 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
5224 weak crypto and after checking the certificate is SGC a second one
5225 with strong crypto. MS SGC stops the first handshake after receiving
5226 the server certificate message and sends a second client hello. Since
5227 a server will typically do all the time consuming operations before
5228 expecting any further messages from the client (server key exchange
5229 is the most expensive) there is little difference between the two.
5231 To get OpenSSL to support MS SGC we have to permit a second client
5232 hello message after we have sent server done. In addition we have to
5233 reset the MAC if we do get this second client hello.
5236 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
5237 if a DER encoded private key is RSA or DSA traditional format. Changed
5238 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
5239 format DER encoded private key. Newer code should use PKCS#8 format which
5240 has the key type encoded in the ASN1 structure. Added DER private key
5241 support to pkcs8 application.
5244 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
5245 ciphersuites has been selected (as required by the SSL 3/TLS 1
5246 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
5247 is set, we interpret this as a request to violate the specification
5248 (the worst that can happen is a handshake failure, and 'correct'
5249 behaviour would result in a handshake failure anyway).
5252 *) In SSL_CTX_add_session, take into account that there might be multiple
5253 SSL_SESSION structures with the same session ID (e.g. when two threads
5254 concurrently obtain them from an external cache).
5255 The internal cache can handle only one SSL_SESSION with a given ID,
5256 so if there's a conflict, we now throw out the old one to achieve
5260 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
5261 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
5262 some routines that use cipher OIDs: some ciphers do not have OIDs
5263 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
5267 *) Simplify the trust setting structure and code. Now we just have
5268 two sequences of OIDs for trusted and rejected settings. These will
5269 typically have values the same as the extended key usage extension
5270 and any application specific purposes.
5272 The trust checking code now has a default behaviour: it will just
5273 check for an object with the same NID as the passed id. Functions can
5274 be provided to override either the default behaviour or the behaviour
5275 for a given id. SSL client, server and email already have functions
5276 in place for compatibility: they check the NID and also return "trusted"
5277 if the certificate is self signed.
5280 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
5281 traditional format into an EVP_PKEY structure.
5284 *) Add a password callback function PEM_cb() which either prompts for
5285 a password if usr_data is NULL or otherwise assumes it is a null
5286 terminated password. Allow passwords to be passed on command line
5287 environment or config files in a few more utilities.
5290 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
5291 keys. Add some short names for PKCS#8 PBE algorithms and allow them
5292 to be specified on the command line for the pkcs8 and pkcs12 utilities.
5293 Update documentation.
5296 *) Support for ASN1 "NULL" type. This could be handled before by using
5297 ASN1_TYPE but there wasn't any function that would try to read a NULL
5298 and produce an error if it couldn't. For compatibility we also have
5299 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
5300 don't allocate anything because they don't need to.
5303 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
5305 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
5307 *) Rebuild of the memory allocation routines used by OpenSSL code and
5308 possibly others as well. The purpose is to make an interface that
5309 provide hooks so anyone can build a separate set of allocation and
5310 deallocation routines to be used by OpenSSL, for example memory
5311 pool implementations, or something else, which was previously hard
5312 since Malloc(), Realloc() and Free() were defined as macros having
5313 the values malloc, realloc and free, respectively (except for Win32
5314 compilations). The same is provided for memory debugging code.
5315 OpenSSL already comes with functionality to find memory leaks, but
5316 this gives people a chance to debug other memory problems.
5318 With these changes, a new set of functions and macros have appeared:
5320 CRYPTO_set_mem_debug_functions() [F]
5321 CRYPTO_get_mem_debug_functions() [F]
5322 CRYPTO_dbg_set_options() [F]
5323 CRYPTO_dbg_get_options() [F]
5324 CRYPTO_malloc_debug_init() [M]
5326 The memory debug functions are NULL by default, unless the library
5327 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
5328 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
5329 gives the standard debugging functions that come with OpenSSL) or
5330 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
5331 provided by the library user) must be used. When the standard
5332 debugging functions are used, CRYPTO_dbg_set_options can be used to
5333 request additional information:
5334 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
5335 the CRYPTO_MDEBUG_xxx macro when compiling the library.
5337 Also, things like CRYPTO_set_mem_functions will always give the
5338 expected result (the new set of functions is used for allocation
5339 and deallocation) at all times, regardless of platform and compiler
5342 To finish it up, some functions that were never use in any other
5343 way than through macros have a new API and new semantic:
5346 CRYPTO_dbg_realloc()
5349 All macros of value have retained their old syntax.
5350 [Richard Levitte and Bodo Moeller]
5352 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
5353 ordering of SMIMECapabilities wasn't in "strength order" and there
5354 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
5358 *) Some ASN1 types with illegal zero length encoding (INTEGER,
5359 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
5360 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
5362 *) Merge in my S/MIME library for OpenSSL. This provides a simple
5363 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
5364 functionality to handle multipart/signed properly) and a utility
5365 called 'smime' to call all this stuff. This is based on code I
5366 originally wrote for Celo who have kindly allowed it to be
5367 included in OpenSSL.
5370 *) Add variants des_set_key_checked and des_set_key_unchecked of
5371 des_set_key (aka des_key_sched). Global variable des_check_key
5372 decides which of these is called by des_set_key; this way
5373 des_check_key behaves as it always did, but applications and
5374 the library itself, which was buggy for des_check_key == 1,
5375 have a cleaner way to pick the version they need.
5378 *) New function PKCS12_newpass() which changes the password of a
5382 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
5383 dynamic mix. In both cases the ids can be used as an index into the
5384 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
5385 functions so they accept a list of the field values and the
5386 application doesn't need to directly manipulate the X509_TRUST
5390 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
5394 *) Modify the way the V3 extension code looks up extensions. This now
5395 works in a similar way to the object code: we have some "standard"
5396 extensions in a static table which is searched with OBJ_bsearch()
5397 and the application can add dynamic ones if needed. The file
5398 crypto/x509v3/ext_dat.h now has the info: this file needs to be
5399 updated whenever a new extension is added to the core code and kept
5400 in ext_nid order. There is a simple program 'tabtest.c' which checks
5401 this. New extensions are not added too often so this file can readily
5402 be maintained manually.
5404 There are two big advantages in doing things this way. The extensions
5405 can be looked up immediately and no longer need to be "added" using
5406 X509V3_add_standard_extensions(): this function now does nothing.
5407 [Side note: I get *lots* of email saying the extension code doesn't
5408 work because people forget to call this function]
5409 Also no dynamic allocation is done unless new extensions are added:
5410 so if we don't add custom extensions there is no need to call
5411 X509V3_EXT_cleanup().
5414 *) Modify enc utility's salting as follows: make salting the default. Add a
5415 magic header, so unsalted files fail gracefully instead of just decrypting
5416 to garbage. This is because not salting is a big security hole, so people
5417 should be discouraged from doing it.
5420 *) Fixes and enhancements to the 'x509' utility. It allowed a message
5421 digest to be passed on the command line but it only used this
5422 parameter when signing a certificate. Modified so all relevant
5423 operations are affected by the digest parameter including the
5424 -fingerprint and -x509toreq options. Also -x509toreq choked if a
5425 DSA key was used because it didn't fix the digest.
5428 *) Initial certificate chain verify code. Currently tests the untrusted
5429 certificates for consistency with the verify purpose (which is set
5430 when the X509_STORE_CTX structure is set up) and checks the pathlength.
5432 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
5433 this is because it will reject chains with invalid extensions whereas
5434 every previous version of OpenSSL and SSLeay made no checks at all.
5436 Trust code: checks the root CA for the relevant trust settings. Trust
5437 settings have an initial value consistent with the verify purpose: e.g.
5438 if the verify purpose is for SSL client use it expects the CA to be
5439 trusted for SSL client use. However the default value can be changed to
5440 permit custom trust settings: one example of this would be to only trust
5441 certificates from a specific "secure" set of CAs.
5443 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
5444 which should be used for version portability: especially since the
5445 verify structure is likely to change more often now.
5447 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
5448 to set them. If not set then assume SSL clients will verify SSL servers
5451 Two new options to the verify program: -untrusted allows a set of
5452 untrusted certificates to be passed in and -purpose which sets the
5453 intended purpose of the certificate. If a purpose is set then the
5454 new chain verify code is used to check extension consistency.
5457 *) Support for the authority information access extension.
5460 *) Modify RSA and DSA PEM read routines to transparently handle
5461 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
5462 public keys in a format compatible with certificate
5463 SubjectPublicKeyInfo structures. Unfortunately there were already
5464 functions called *_PublicKey_* which used various odd formats so
5465 these are retained for compatibility: however the DSA variants were
5466 never in a public release so they have been deleted. Changed dsa/rsa
5467 utilities to handle the new format: note no releases ever handled public
5468 keys so we should be OK.
5470 The primary motivation for this change is to avoid the same fiasco
5471 that dogs private keys: there are several incompatible private key
5472 formats some of which are standard and some OpenSSL specific and
5473 require various evil hacks to allow partial transparent handling and
5474 even then it doesn't work with DER formats. Given the option anything
5475 other than PKCS#8 should be dumped: but the other formats have to
5476 stay in the name of compatibility.
5478 With public keys and the benefit of hindsight one standard format
5479 is used which works with EVP_PKEY, RSA or DSA structures: though
5480 it clearly returns an error if you try to read the wrong kind of key.
5482 Added a -pubkey option to the 'x509' utility to output the public key.
5483 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
5484 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
5485 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
5486 that do the same as the EVP_PKEY_assign_*() except they up the
5487 reference count of the added key (they don't "swallow" the
5491 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
5492 CRLs would fail if the file contained no certificates or no CRLs:
5493 added a new function to read in both types and return the number
5494 read: this means that if none are read it will be an error. The
5495 DER versions of the certificate and CRL reader would always fail
5496 because it isn't possible to mix certificates and CRLs in DER format
5497 without choking one or the other routine. Changed this to just read
5498 a certificate: this is the best we can do. Also modified the code
5499 in apps/verify.c to take notice of return codes: it was previously
5500 attempting to read in certificates from NULL pointers and ignoring
5501 any errors: this is one reason why the cert and CRL reader seemed
5502 to work. It doesn't check return codes from the default certificate
5503 routines: these may well fail if the certificates aren't installed.
5506 *) Code to support otherName option in GeneralName.
5509 *) First update to verify code. Change the verify utility
5510 so it warns if it is passed a self signed certificate:
5511 for consistency with the normal behaviour. X509_verify
5512 has been modified to it will now verify a self signed
5513 certificate if *exactly* the same certificate appears
5514 in the store: it was previously impossible to trust a
5515 single self signed certificate. This means that:
5516 openssl verify ss.pem
5517 now gives a warning about a self signed certificate but
5518 openssl verify -CAfile ss.pem ss.pem
5522 *) For servers, store verify_result in SSL_SESSION data structure
5523 (and add it to external session representation).
5524 This is needed when client certificate verifications fails,
5525 but an application-provided verification callback (set by
5526 SSL_CTX_set_cert_verify_callback) allows accepting the session
5527 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
5528 but returns 1): When the session is reused, we have to set
5529 ssl->verify_result to the appropriate error code to avoid
5531 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
5533 *) Fix a bug in the new PKCS#7 code: it didn't consider the
5534 case in PKCS7_dataInit() where the signed PKCS7 structure
5535 didn't contain any existing data because it was being created.
5536 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
5538 *) Add a salt to the key derivation routines in enc.c. This
5539 forms the first 8 bytes of the encrypted file. Also add a
5540 -S option to allow a salt to be input on the command line.
5543 *) New function X509_cmp(). Oddly enough there wasn't a function
5544 to compare two certificates. We do this by working out the SHA1
5545 hash and comparing that. X509_cmp() will be needed by the trust
5549 *) SSL_get1_session() is like SSL_get_session(), but increments
5550 the reference count in the SSL_SESSION returned.
5551 [Geoff Thorpe <geoff@eu.c2.net>]
5553 *) Fix for 'req': it was adding a null to request attributes.
5554 Also change the X509_LOOKUP and X509_INFO code to handle
5555 certificate auxiliary information.
5558 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
5562 *) Add the possibility to add extra information to the memory leak
5563 detecting output, to form tracebacks, showing from where each
5564 allocation was originated: CRYPTO_push_info("constant string") adds
5565 the string plus current file name and line number to a per-thread
5566 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
5567 is like calling CYRPTO_pop_info() until the stack is empty.
5568 Also updated memory leak detection code to be multi-thread-safe.
5571 *) Add options -text and -noout to pkcs7 utility and delete the
5572 encryption options which never did anything. Update docs.
5575 *) Add options to some of the utilities to allow the pass phrase
5576 to be included on either the command line (not recommended on
5577 OSes like Unix) or read from the environment. Update the
5578 manpages and fix a few bugs.
5581 *) Add a few manpages for some of the openssl commands.
5584 *) Fix the -revoke option in ca. It was freeing up memory twice,
5585 leaking and not finding already revoked certificates.
5588 *) Extensive changes to support certificate auxiliary information.
5589 This involves the use of X509_CERT_AUX structure and X509_AUX
5590 functions. An X509_AUX function such as PEM_read_X509_AUX()
5591 can still read in a certificate file in the usual way but it
5592 will also read in any additional "auxiliary information". By
5593 doing things this way a fair degree of compatibility can be
5594 retained: existing certificates can have this information added
5595 using the new 'x509' options.
5597 Current auxiliary information includes an "alias" and some trust
5598 settings. The trust settings will ultimately be used in enhanced
5599 certificate chain verification routines: currently a certificate
5600 can only be trusted if it is self signed and then it is trusted
5604 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
5605 The problem was that one of the replacement routines had not been working
5606 since SSLeay releases. For now the offending routine has been replaced
5607 with non-optimised assembler. Even so, this now gives around 95%
5608 performance improvement for 1024 bit RSA signs.
5611 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
5612 handling. Most clients have the effective key size in bits equal to
5613 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
5614 A few however don't do this and instead use the size of the decrypted key
5615 to determine the RC2 key length and the AlgorithmIdentifier to determine
5616 the effective key length. In this case the effective key length can still
5617 be 40 bits but the key length can be 168 bits for example. This is fixed
5618 by manually forcing an RC2 key into the EVP_PKEY structure because the
5619 EVP code can't currently handle unusual RC2 key sizes: it always assumes
5620 the key length and effective key length are equal.
5623 *) Add a bunch of functions that should simplify the creation of
5624 X509_NAME structures. Now you should be able to do:
5625 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
5626 and have it automatically work out the correct field type and fill in
5627 the structures. The more adventurous can try:
5628 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
5629 and it will (hopefully) work out the correct multibyte encoding.
5632 *) Change the 'req' utility to use the new field handling and multibyte
5633 copy routines. Before the DN field creation was handled in an ad hoc
5634 way in req, ca, and x509 which was rather broken and didn't support
5635 BMPStrings or UTF8Strings. Since some software doesn't implement
5636 BMPStrings or UTF8Strings yet, they can be enabled using the config file
5637 using the dirstring_type option. See the new comment in the default
5638 openssl.cnf for more info.
5641 *) Make crypto/rand/md_rand.c more robust:
5642 - Assure unique random numbers after fork().
5643 - Make sure that concurrent threads access the global counter and
5644 md serializably so that we never lose entropy in them
5645 or use exactly the same state in multiple threads.
5646 Access to the large state is not always serializable because
5647 the additional locking could be a performance killer, and
5648 md should be large enough anyway.
5651 *) New file apps/app_rand.c with commonly needed functionality
5652 for handling the random seed file.
5654 Use the random seed file in some applications that previously did not:
5656 dsaparam -genkey (which also ignored its '-rand' option),
5659 x509 (when signing).
5660 Except on systems with /dev/urandom, it is crucial to have a random
5661 seed file at least for key creation, DSA signing, and for DH exchanges;
5662 for RSA signatures we could do without one.
5664 gendh and gendsa (unlike genrsa) used to read only the first byte
5665 of each file listed in the '-rand' option. The function as previously
5666 found in genrsa is now in app_rand.c and is used by all programs
5667 that support '-rand'.
5670 *) In RAND_write_file, use mode 0600 for creating files;
5671 don't just chmod when it may be too late.
5674 *) Report an error from X509_STORE_load_locations
5675 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
5678 *) New function ASN1_mbstring_copy() this copies a string in either
5679 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
5680 into an ASN1_STRING type. A mask of permissible types is passed
5681 and it chooses the "minimal" type to use or an error if not type
5685 *) Add function equivalents to the various macros in asn1.h. The old
5686 macros are retained with an M_ prefix. Code inside the library can
5687 use the M_ macros. External code (including the openssl utility)
5688 should *NOT* in order to be "shared library friendly".
5691 *) Add various functions that can check a certificate's extensions
5692 to see if it usable for various purposes such as SSL client,
5693 server or S/MIME and CAs of these types. This is currently
5694 VERY EXPERIMENTAL but will ultimately be used for certificate chain
5695 verification. Also added a -purpose flag to x509 utility to
5696 print out all the purposes.
5699 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
5703 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
5704 for, obtain and decode and extension and obtain its critical flag.
5705 This allows all the necessary extension code to be handled in a
5706 single function call.
5709 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
5710 platforms. See crypto/rc4/rc4_enc.c for further details.
5713 *) New -noout option to asn1parse. This causes no output to be produced
5714 its main use is when combined with -strparse and -out to extract data
5715 from a file (which may not be in ASN.1 format).
5718 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
5719 when producing the local key id.
5720 [Richard Levitte <levitte@stacken.kth.se>]
5722 *) New option -dhparam in s_server. This allows a DH parameter file to be
5723 stated explicitly. If it is not stated then it tries the first server
5724 certificate file. The previous behaviour hard coded the filename
5728 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
5729 a public key to be input or output. For example:
5730 openssl rsa -in key.pem -pubout -out pubkey.pem
5731 Also added necessary DSA public key functions to handle this.
5734 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
5735 in the message. This was handled by allowing
5736 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
5737 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
5739 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
5740 to the end of the strings whereas this didn't. This would cause problems
5741 if strings read with d2i_ASN1_bytes() were later modified.
5742 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
5744 *) Fix for base64 decode bug. When a base64 bio reads only one line of
5745 data and it contains EOF it will end up returning an error. This is
5746 caused by input 46 bytes long. The cause is due to the way base64
5747 BIOs find the start of base64 encoded data. They do this by trying a
5748 trial decode on each line until they find one that works. When they
5749 do a flag is set and it starts again knowing it can pass all the
5750 data directly through the decoder. Unfortunately it doesn't reset
5751 the context it uses. This means that if EOF is reached an attempt
5752 is made to pass two EOFs through the context and this causes the
5753 resulting error. This can also cause other problems as well. As is
5754 usual with these problems it takes *ages* to find and the fix is
5755 trivial: move one line.
5756 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
5758 *) Ugly workaround to get s_client and s_server working under Windows. The
5759 old code wouldn't work because it needed to select() on sockets and the
5760 tty (for keypresses and to see if data could be written). Win32 only
5761 supports select() on sockets so we select() with a 1s timeout on the
5762 sockets and then see if any characters are waiting to be read, if none
5763 are present then we retry, we also assume we can always write data to
5764 the tty. This isn't nice because the code then blocks until we've
5765 received a complete line of data and it is effectively polling the
5766 keyboard at 1s intervals: however it's quite a bit better than not
5767 working at all :-) A dedicated Windows application might handle this
5768 with an event loop for example.
5771 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
5772 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
5773 will be called when RSA_sign() and RSA_verify() are used. This is useful
5774 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
5775 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
5776 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
5777 This necessitated the support of an extra signature type NID_md5_sha1
5778 for SSL signatures and modifications to the SSL library to use it instead
5779 of calling RSA_public_decrypt() and RSA_private_encrypt().
5782 *) Add new -verify -CAfile and -CApath options to the crl program, these
5783 will lookup a CRL issuers certificate and verify the signature in a
5784 similar way to the verify program. Tidy up the crl program so it
5785 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
5786 less strict. It will now permit CRL extensions even if it is not
5787 a V2 CRL: this will allow it to tolerate some broken CRLs.
5790 *) Initialize all non-automatic variables each time one of the openssl
5791 sub-programs is started (this is necessary as they may be started
5792 multiple times from the "OpenSSL>" prompt).
5793 [Lennart Bang, Bodo Moeller]
5795 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
5796 removing all other RSA functionality (this is what NO_RSA does). This
5797 is so (for example) those in the US can disable those operations covered
5798 by the RSA patent while allowing storage and parsing of RSA keys and RSA
5802 *) Non-copying interface to BIO pairs.
5803 (still largely untested)
5806 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
5807 ASCII string. This was handled independently in various places before.
5810 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
5811 UTF8 strings a character at a time.
5814 *) Use client_version from client hello to select the protocol
5815 (s23_srvr.c) and for RSA client key exchange verification
5816 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
5819 *) Add various utility functions to handle SPKACs, these were previously
5820 handled by poking round in the structure internals. Added new function
5821 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
5822 print, verify and generate SPKACs. Based on an original idea from
5823 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
5826 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
5829 *) Allow the config file extension section to be overwritten on the
5830 command line. Based on an original idea from Massimiliano Pala
5831 <madwolf@comune.modena.it>. The new option is called -extensions
5832 and can be applied to ca, req and x509. Also -reqexts to override
5833 the request extensions in req and -crlexts to override the crl extensions
5837 *) Add new feature to the SPKAC handling in ca. Now you can include
5838 the same field multiple times by preceding it by "XXXX." for example:
5841 this is the same syntax as used in the req config file.
5844 *) Allow certificate extensions to be added to certificate requests. These
5845 are specified in a 'req_extensions' option of the req section of the
5846 config file. They can be printed out with the -text option to req but
5847 are otherwise ignored at present.
5850 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
5851 data read consists of only the final block it would not decrypted because
5852 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
5853 A misplaced 'break' also meant the decrypted final block might not be
5854 copied until the next read.
5857 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
5858 a few extra parameters to the DH structure: these will be useful if
5859 for example we want the value of 'q' or implement X9.42 DH.
5862 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
5863 provides hooks that allow the default DSA functions or functions on a
5864 "per key" basis to be replaced. This allows hardware acceleration and
5865 hardware key storage to be handled without major modification to the
5866 library. Also added low level modexp hooks and CRYPTO_EX structure and
5867 associated functions.
5870 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
5871 as "read only": it can't be written to and the buffer it points to will
5872 not be freed. Reading from a read only BIO is much more efficient than
5873 a normal memory BIO. This was added because there are several times when
5874 an area of memory needs to be read from a BIO. The previous method was
5875 to create a memory BIO and write the data to it, this results in two
5876 copies of the data and an O(n^2) reading algorithm. There is a new
5877 function BIO_new_mem_buf() which creates a read only memory BIO from
5878 an area of memory. Also modified the PKCS#7 routines to use read only
5882 *) Bugfix: ssl23_get_client_hello did not work properly when called in
5883 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
5884 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
5885 but a retry condition occured while trying to read the rest.
5888 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
5889 NID_pkcs7_encrypted by default: this was wrong since this should almost
5890 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
5891 the encrypted data type: this is a more sensible place to put it and it
5892 allows the PKCS#12 code to be tidied up that duplicated this
5896 *) Changed obj_dat.pl script so it takes its input and output files on
5897 the command line. This should avoid shell escape redirection problems
5901 *) Initial support for certificate extension requests, these are included
5902 in things like Xenroll certificate requests. Included functions to allow
5903 extensions to be obtained and added.
5906 *) -crlf option to s_client and s_server for sending newlines as
5907 CRLF (as required by many protocols).
5910 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
5912 *) Install libRSAglue.a when OpenSSL is built with RSAref.
5913 [Ralf S. Engelschall]
5915 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
5916 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
5918 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
5922 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
5923 DH parameters/keys (q is lost during that conversion, but the resulting
5924 DH parameters contain its length).
5926 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
5927 much faster than DH_generate_parameters (which creates parameters
5928 where p = 2*q + 1), and also the smaller q makes DH computations
5929 much more efficient (160-bit exponentiation instead of 1024-bit
5930 exponentiation); so this provides a convenient way to support DHE
5931 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
5932 utter importance to use
5933 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
5935 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
5936 when such DH parameters are used, because otherwise small subgroup
5937 attacks may become possible!
5940 *) Avoid memory leak in i2d_DHparams.
5943 *) Allow the -k option to be used more than once in the enc program:
5944 this allows the same encrypted message to be read by multiple recipients.
5947 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
5948 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
5949 it will always use the numerical form of the OID, even if it has a short
5953 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
5954 method only got called if p,q,dmp1,dmq1,iqmp components were present,
5955 otherwise bn_mod_exp was called. In the case of hardware keys for example
5956 no private key components need be present and it might store extra data
5957 in the RSA structure, which cannot be accessed from bn_mod_exp.
5958 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
5959 private key operations.
5962 *) Added support for SPARC Linux.
5965 *) pem_password_cb function type incompatibly changed from
5966 typedef int pem_password_cb(char *buf, int size, int rwflag);
5968 ....(char *buf, int size, int rwflag, void *userdata);
5969 so that applications can pass data to their callbacks:
5970 The PEM[_ASN1]_{read,write}... functions and macros now take an
5971 additional void * argument, which is just handed through whenever
5972 the password callback is called.
5973 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
5975 New function SSL_CTX_set_default_passwd_cb_userdata.
5977 Compatibility note: As many C implementations push function arguments
5978 onto the stack in reverse order, the new library version is likely to
5979 interoperate with programs that have been compiled with the old
5980 pem_password_cb definition (PEM_whatever takes some data that
5981 happens to be on the stack as its last argument, and the callback
5982 just ignores this garbage); but there is no guarantee whatsoever that
5985 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
5986 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
5987 problems not only on Windows, but also on some Unix platforms.
5988 To avoid problematic command lines, these definitions are now in an
5989 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
5990 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
5993 *) MIPS III/IV assembler module is reimplemented.
5996 *) More DES library cleanups: remove references to srand/rand and
5997 delete an unused file.
6000 *) Add support for the the free Netwide assembler (NASM) under Win32,
6001 since not many people have MASM (ml) and it can be hard to obtain.
6002 This is currently experimental but it seems to work OK and pass all
6003 the tests. Check out INSTALL.W32 for info.
6006 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
6007 without temporary keys kept an extra copy of the server key,
6008 and connections with temporary keys did not free everything in case
6012 *) New function RSA_check_key and new openssl rsa option -check
6013 for verifying the consistency of RSA keys.
6014 [Ulf Moeller, Bodo Moeller]
6016 *) Various changes to make Win32 compile work:
6017 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
6018 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
6019 comparison" warnings.
6020 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
6023 *) Add a debugging option to PKCS#5 v2 key generation function: when
6024 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
6025 derived keys are printed to stderr.
6028 *) Copy the flags in ASN1_STRING_dup().
6029 [Roman E. Pavlov <pre@mo.msk.ru>]
6031 *) The x509 application mishandled signing requests containing DSA
6032 keys when the signing key was also DSA and the parameters didn't match.
6034 It was supposed to omit the parameters when they matched the signing key:
6035 the verifying software was then supposed to automatically use the CA's
6036 parameters if they were absent from the end user certificate.
6038 Omitting parameters is no longer recommended. The test was also
6039 the wrong way round! This was probably due to unusual behaviour in
6040 EVP_cmp_parameters() which returns 1 if the parameters match.
6041 This meant that parameters were omitted when they *didn't* match and
6042 the certificate was useless. Certificates signed with 'ca' didn't have
6044 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
6046 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
6047 The interface is as follows:
6048 Applications can use
6049 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
6050 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
6051 "off" is now the default.
6052 The library internally uses
6053 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
6054 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
6055 to disable memory-checking temporarily.
6057 Some inconsistent states that previously were possible (and were
6058 even the default) are now avoided.
6060 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
6061 with each memory chunk allocated; this is occasionally more helpful
6062 than just having a counter.
6064 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
6066 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
6070 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
6071 which largely parallels "options", but is for changing API behaviour,
6072 whereas "options" are about protocol behaviour.
6073 Initial "mode" flags are:
6075 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
6076 a single record has been written.
6077 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
6078 retries use the same buffer location.
6079 (But all of the contents must be
6083 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
6086 *) Fix problems with no-hmac etc.
6087 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
6089 *) New functions RSA_get_default_method(), RSA_set_method() and
6090 RSA_get_method(). These allows replacement of RSA_METHODs without having
6091 to mess around with the internals of an RSA structure.
6094 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
6095 Also really enable memory leak checks in openssl.c and in some
6097 [Chad C. Mulligan, Bodo Moeller]
6099 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
6100 up the length of negative integers. This has now been simplified to just
6101 store the length when it is first determined and use it later, rather
6102 than trying to keep track of where data is copied and updating it to
6104 [Steve Henson, reported by Brien Wheeler
6105 <bwheeler@authentica-security.com>]
6107 *) Add a new function PKCS7_signatureVerify. This allows the verification
6108 of a PKCS#7 signature but with the signing certificate passed to the
6109 function itself. This contrasts with PKCS7_dataVerify which assumes the
6110 certificate is present in the PKCS#7 structure. This isn't always the
6111 case: certificates can be omitted from a PKCS#7 structure and be
6112 distributed by "out of band" means (such as a certificate database).
6115 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
6116 function prototypes in pem.h, also change util/mkdef.pl to add the
6117 necessary function names.
6120 *) mk1mf.pl (used by Windows builds) did not properly read the
6121 options set by Configure in the top level Makefile, and Configure
6122 was not even able to write more than one option correctly.
6123 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
6126 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
6127 file to be loaded from a BIO or FILE pointer. The BIO version will
6128 for example allow memory BIOs to contain config info.
6131 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
6132 Whoever hopes to achieve shared-library compatibility across versions
6133 must use this, not the compile-time macro.
6134 (Exercise 0.9.4: Which is the minimum library version required by
6136 Note: All this applies only to multi-threaded programs, others don't
6140 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
6141 through a BIO pair triggered the default case, i.e.
6142 SSLerr(...,SSL_R_UNKNOWN_STATE).
6145 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
6146 can use the SSL library even if none of the specific BIOs is
6150 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
6151 for the encoded length.
6152 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
6154 *) Add initial documentation of the X509V3 functions.
6157 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
6158 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
6159 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
6160 secure PKCS#8 private key format with a high iteration count.
6163 *) Fix determination of Perl interpreter: A perl or perl5
6164 _directory_ in $PATH was also accepted as the interpreter.
6165 [Ralf S. Engelschall]
6167 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
6168 wrong with it but it was very old and did things like calling
6169 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
6173 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
6174 to use the new extension code.
6177 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
6178 with macros. This should make it easier to change their form, add extra
6179 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
6183 *) Add to configuration table a new entry that can specify an alternative
6184 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
6185 according to Mark Crispin <MRC@Panda.COM>.
6189 *) DES CBC did not update the IV. Weird.
6192 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
6193 Changing the behaviour of the former might break existing programs --
6194 where IV updating is needed, des_ncbc_encrypt can be used.
6197 *) When bntest is run from "make test" it drives bc to check its
6198 calculations, as well as internally checking them. If an internal check
6199 fails, it needs to cause bc to give a non-zero result or make test carries
6200 on without noticing the failure. Fixed.
6203 *) DES library cleanups.
6206 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
6207 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
6208 ciphers. NOTE: although the key derivation function has been verified
6209 against some published test vectors it has not been extensively tested
6210 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
6214 *) Instead of "mkdir -p", which is not fully portable, use new
6215 Perl script "util/mkdir-p.pl".
6218 *) Rewrite the way password based encryption (PBE) is handled. It used to
6219 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
6220 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
6221 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
6222 the 'parameter' field of the AlgorithmIdentifier is passed to the
6223 underlying key generation function so it must do its own ASN1 parsing.
6224 This has also changed the EVP_PBE_CipherInit() function which now has a
6225 'parameter' argument instead of literal salt and iteration count values
6226 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
6229 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
6230 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
6231 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
6232 KEY" because this clashed with PKCS#8 unencrypted string. Since this
6233 value was just used as a "magic string" and not used directly its
6234 value doesn't matter.
6237 *) Introduce some semblance of const correctness to BN. Shame C doesn't
6241 *) "linux-sparc64" configuration (ultrapenguin).
6242 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
6243 "linux-sparc" configuration.
6244 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
6246 *) config now generates no-xxx options for missing ciphers.
6249 *) Support the EBCDIC character set (work in progress).
6250 File ebcdic.c not yet included because it has a different license.
6251 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6253 *) Support BS2000/OSD-POSIX.
6254 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6256 *) Make callbacks for key generation use void * instead of char *.
6259 *) Make S/MIME samples compile (not yet tested).
6262 *) Additional typesafe stacks.
6265 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
6269 Changes between 0.9.3 and 0.9.3a [29 May 1999]
6271 *) New configuration variant "sco5-gcc".
6273 *) Updated some demos.
6274 [Sean O Riordain, Wade Scholine]
6276 *) Add missing BIO_free at exit of pkcs12 application.
6279 *) Fix memory leak in conf.c.
6282 *) Updates for Win32 to assembler version of MD5.
6285 *) Set #! path to perl in apps/der_chop to where we found it
6286 instead of using a fixed path.
6289 *) SHA library changes for irix64-mips4-cc.
6292 *) Improvements for VMS support.
6296 Changes between 0.9.2b and 0.9.3 [24 May 1999]
6298 *) Bignum library bug fix. IRIX 6 passes "make test" now!
6299 This also avoids the problems with SC4.2 and unpatched SC5.
6300 [Andy Polyakov <appro@fy.chalmers.se>]
6302 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
6303 These are required because of the typesafe stack would otherwise break
6304 existing code. If old code used a structure member which used to be STACK
6305 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
6306 sk_num or sk_value it would produce an error because the num, data members
6307 are not present in STACK_OF. Now it just produces a warning. sk_set
6308 replaces the old method of assigning a value to sk_value
6309 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
6310 that does this will no longer work (and should use sk_set instead) but
6311 this could be regarded as a "questionable" behaviour anyway.
6314 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
6315 correctly handle encrypted S/MIME data.
6318 *) Change type of various DES function arguments from des_cblock
6319 (which means, in function argument declarations, pointer to char)
6320 to des_cblock * (meaning pointer to array with 8 char elements),
6321 which allows the compiler to do more typechecking; it was like
6322 that back in SSLeay, but with lots of ugly casts.
6324 Introduce new type const_des_cblock.
6327 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
6328 problems: find RecipientInfo structure that matches recipient certificate
6329 and initialise the ASN1 structures properly based on passed cipher.
6332 *) Belatedly make the BN tests actually check the results.
6335 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
6336 to and from BNs: it was completely broken. New compilation option
6337 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
6338 key elements as negative integers.
6341 *) Reorganize and speed up MD5.
6342 [Andy Polyakov <appro@fy.chalmers.se>]
6345 [Richard Levitte <richard@levitte.org>]
6347 *) New option -out to asn1parse to allow the parsed structure to be
6348 output to a file. This is most useful when combined with the -strparse
6349 option to examine the output of things like OCTET STRINGS.
6352 *) Make SSL library a little more fool-proof by not requiring any longer
6353 that SSL_set_{accept,connect}_state be called before
6354 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
6355 in many applications because usually everything *appeared* to work as
6356 intended anyway -- now it really works as intended).
6359 *) Move openssl.cnf out of lib/.
6362 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
6363 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
6364 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
6365 [Ralf S. Engelschall]
6367 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
6368 handle PKCS#7 enveloped data properly.
6369 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
6371 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
6372 copying pointers. The cert_st handling is changed by this in
6373 various ways (and thus what used to be known as ctx->default_cert
6374 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
6375 any longer when s->cert does not give us what we need).
6376 ssl_cert_instantiate becomes obsolete by this change.
6377 As soon as we've got the new code right (possibly it already is?),
6378 we have solved a couple of bugs of the earlier code where s->cert
6379 was used as if it could not have been shared with other SSL structures.
6381 Note that using the SSL API in certain dirty ways now will result
6382 in different behaviour than observed with earlier library versions:
6383 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
6384 does not influence s as it used to.
6386 In order to clean up things more thoroughly, inside SSL_SESSION
6387 we don't use CERT any longer, but a new structure SESS_CERT
6388 that holds per-session data (if available); currently, this is
6389 the peer's certificate chain and, for clients, the server's certificate
6390 and temporary key. CERT holds only those values that can have
6391 meaningful defaults in an SSL_CTX.
6394 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
6395 from the internal representation. Various PKCS#7 fixes: remove some
6396 evil casts and set the enc_dig_alg field properly based on the signing
6400 *) Allow PKCS#12 password to be set from the command line or the
6401 environment. Let 'ca' get its config file name from the environment
6402 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
6406 *) Allow certificate policies extension to use an IA5STRING for the
6407 organization field. This is contrary to the PKIX definition but
6408 VeriSign uses it and IE5 only recognises this form. Document 'x509'
6412 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
6413 without disallowing inline assembler and the like for non-pedantic builds.
6416 *) Support Borland C++ builder.
6417 [Janez Jere <jj@void.si>, modified by Ulf Möller]
6422 *) SHA-1 cleanups and performance enhancements.
6423 [Andy Polyakov <appro@fy.chalmers.se>]
6425 *) Sparc v8plus assembler for the bignum library.
6426 [Andy Polyakov <appro@fy.chalmers.se>]
6428 *) Accept any -xxx and +xxx compiler options in Configure.
6431 *) Update HPUX configuration.
6434 *) Add missing sk_<type>_unshift() function to safestack.h
6435 [Ralf S. Engelschall]
6437 *) New function SSL_CTX_use_certificate_chain_file that sets the
6438 "extra_cert"s in addition to the certificate. (This makes sense
6439 only for "PEM" format files, as chains as a whole are not
6443 *) Support verify_depth from the SSL API.
6444 x509_vfy.c had what can be considered an off-by-one-error:
6445 Its depth (which was not part of the external interface)
6446 was actually counting the number of certificates in a chain;
6447 now it really counts the depth.
6450 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
6451 instead of X509err, which often resulted in confusing error
6452 messages since the error codes are not globally unique
6453 (e.g. an alleged error in ssl3_accept when a certificate
6454 didn't match the private key).
6456 *) New function SSL_CTX_set_session_id_context that allows to set a default
6457 value (so that you don't need SSL_set_session_id_context for each
6458 connection using the SSL_CTX).
6461 *) OAEP decoding bug fix.
6464 *) Support INSTALL_PREFIX for package builders, as proposed by
6468 *) New Configure options "threads" and "no-threads". For systems
6469 where the proper compiler options are known (currently Solaris
6470 and Linux), "threads" is the default.
6473 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
6476 *) Install various scripts to $(OPENSSLDIR)/misc, not to
6477 $(INSTALLTOP)/bin -- they shouldn't clutter directories
6478 such as /usr/local/bin.
6481 *) "make linux-shared" to build shared libraries.
6482 [Niels Poppe <niels@netbox.org>]
6484 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
6487 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
6488 extension adding in x509 utility.
6491 *) Remove NOPROTO sections and error code comments.
6494 *) Partial rewrite of the DEF file generator to now parse the ANSI
6498 *) New Configure options --prefix=DIR and --openssldir=DIR.
6501 *) Complete rewrite of the error code script(s). It is all now handled
6502 by one script at the top level which handles error code gathering,
6503 header rewriting and C source file generation. It should be much better
6504 than the old method: it now uses a modified version of Ulf's parser to
6505 read the ANSI prototypes in all header files (thus the old K&R definitions
6506 aren't needed for error creation any more) and do a better job of
6507 translating function codes into names. The old 'ASN1 error code imbedded
6508 in a comment' is no longer necessary and it doesn't use .err files which
6509 have now been deleted. Also the error code call doesn't have to appear all
6510 on one line (which resulted in some large lines...).
6513 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
6516 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
6517 0 (which usually indicates a closed connection), but continue reading.
6520 *) Fix some race conditions.
6523 *) Add support for CRL distribution points extension. Add Certificate
6524 Policies and CRL distribution points documentation.
6527 *) Move the autogenerated header file parts to crypto/opensslconf.h.
6530 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
6531 8 of keying material. Merlin has also confirmed interop with this fix
6532 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
6533 [Merlin Hughes <merlin@baltimore.ie>]
6535 *) Fix lots of warnings.
6536 [Richard Levitte <levitte@stacken.kth.se>]
6538 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
6539 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
6540 [Richard Levitte <levitte@stacken.kth.se>]
6542 *) Fix problems with sizeof(long) == 8.
6543 [Andy Polyakov <appro@fy.chalmers.se>]
6545 *) Change functions to ANSI C.
6548 *) Fix typos in error codes.
6549 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
6551 *) Remove defunct assembler files from Configure.
6554 *) SPARC v8 assembler BIGNUM implementation.
6555 [Andy Polyakov <appro@fy.chalmers.se>]
6557 *) Support for Certificate Policies extension: both print and set.
6558 Various additions to support the r2i method this uses.
6561 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
6562 return a const string when you are expecting an allocated buffer.
6565 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
6566 types DirectoryString and DisplayText.
6569 *) Add code to allow r2i extensions to access the configuration database,
6570 add an LHASH database driver and add several ctx helper functions.
6573 *) Fix an evil bug in bn_expand2() which caused various BN functions to
6574 fail when they extended the size of a BIGNUM.
6577 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
6578 support typesafe stack.
6581 *) Fix typo in SSL_[gs]et_options().
6582 [Nils Frostberg <nils@medcom.se>]
6584 *) Delete various functions and files that belonged to the (now obsolete)
6585 old X509V3 handling code.
6588 *) New Configure option "rsaref".
6591 *) Don't auto-generate pem.h.
6594 *) Introduce type-safe ASN.1 SETs.
6597 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
6598 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
6600 *) Introduce type-safe STACKs. This will almost certainly break lots of code
6601 that links with OpenSSL (well at least cause lots of warnings), but fear
6602 not: the conversion is trivial, and it eliminates loads of evil casts. A
6603 few STACKed things have been converted already. Feel free to convert more.
6604 In the fullness of time, I'll do away with the STACK type altogether.
6607 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
6608 specified in <certfile> by updating the entry in the index.txt file.
6609 This way one no longer has to edit the index.txt file manually for
6610 revoking a certificate. The -revoke option does the gory details now.
6611 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
6613 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
6614 `-text' option at all and this way the `-noout -text' combination was
6615 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
6616 [Ralf S. Engelschall]
6618 *) Make sure a corresponding plain text error message exists for the
6619 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
6620 verify callback function determined that a certificate was revoked.
6621 [Ralf S. Engelschall]
6623 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
6624 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
6625 all available cipers including rc5, which was forgotten until now.
6626 In order to let the testing shell script know which algorithms
6627 are available, a new (up to now undocumented) command
6628 "openssl list-cipher-commands" is used.
6631 *) Bugfix: s_client occasionally would sleep in select() when
6632 it should have checked SSL_pending() first.
6635 *) New functions DSA_do_sign and DSA_do_verify to provide access to
6636 the raw DSA values prior to ASN.1 encoding.
6639 *) Tweaks to Configure
6640 [Niels Poppe <niels@netbox.org>]
6642 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
6646 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
6649 *) New config option to avoid instructions that are illegal on the 80386.
6650 The default code is faster, but requires at least a 486.
6653 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
6654 SSL2_SERVER_VERSION (not used at all) macros, which are now the
6655 same as SSL2_VERSION anyway.
6658 *) New "-showcerts" option for s_client.
6661 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
6662 application. Various cleanups and fixes.
6665 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
6666 modify error routines to work internally. Add error codes and PBE init
6667 to library startup routines.
6670 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
6671 packing functions to asn1 and evp. Changed function names and error
6672 codes along the way.
6675 *) PKCS12 integration: and so it begins... First of several patches to
6676 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
6677 objects to objects.h
6680 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
6681 and display support for Thawte strong extranet extension.
6684 *) Add LinuxPPC support.
6685 [Jeff Dubrule <igor@pobox.org>]
6687 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
6688 bn_div_words in alpha.s.
6689 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
6691 *) Make sure the RSA OAEP test is skipped under -DRSAref because
6692 OAEP isn't supported when OpenSSL is built with RSAref.
6693 [Ulf Moeller <ulf@fitug.de>]
6695 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
6696 so they no longer are missing under -DNOPROTO.
6697 [Soren S. Jorvang <soren@t.dk>]
6700 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
6702 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
6703 doesn't work when the session is reused. Coming soon!
6706 *) Fix a security hole, that allows sessions to be reused in the wrong
6707 context thus bypassing client cert protection! All software that uses
6708 client certs and session caches in multiple contexts NEEDS PATCHING to
6709 allow session reuse! A fuller solution is in the works.
6710 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
6712 *) Some more source tree cleanups (removed obsolete files
6713 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
6714 permission on "config" script to be executable) and a fix for the INSTALL
6716 [Ulf Moeller <ulf@fitug.de>]
6718 *) Remove some legacy and erroneous uses of malloc, free instead of
6720 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
6722 *) Make rsa_oaep_test return non-zero on error.
6723 [Ulf Moeller <ulf@fitug.de>]
6725 *) Add support for native Solaris shared libraries. Configure
6726 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
6727 if someone would make that last step automatic.
6728 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
6730 *) ctx_size was not built with the right compiler during "make links". Fixed.
6733 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
6734 except NULL ciphers". This means the default cipher list will no longer
6735 enable NULL ciphers. They need to be specifically enabled e.g. with
6736 the string "DEFAULT:eNULL".
6739 *) Fix to RSA private encryption routines: if p < q then it would
6740 occasionally produce an invalid result. This will only happen with
6741 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
6744 *) Be less restrictive and allow also `perl util/perlpath.pl
6745 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
6746 because this way one can also use an interpreter named `perl5' (which is
6747 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
6748 installed as `perl').
6749 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
6751 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
6752 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
6754 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
6755 advapi32.lib to Win32 build and change the pem test comparision
6756 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
6757 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
6758 and crypto/des/ede_cbcm_enc.c.
6761 *) DES quad checksum was broken on big-endian architectures. Fixed.
6764 *) Comment out two functions in bio.h that aren't implemented. Fix up the
6765 Win32 test batch file so it (might) work again. The Win32 test batch file
6766 is horrible: I feel ill....
6769 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
6770 in e_os.h. Audit of header files to check ANSI and non ANSI
6771 sections: 10 functions were absent from non ANSI section and not exported
6772 from Windows DLLs. Fixed up libeay.num for new functions.
6775 *) Make `openssl version' output lines consistent.
6776 [Ralf S. Engelschall]
6778 *) Fix Win32 symbol export lists for BIO functions: Added
6779 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
6780 to ms/libeay{16,32}.def.
6781 [Ralf S. Engelschall]
6783 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
6784 fine under Unix and passes some trivial tests I've now added. But the
6785 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
6786 added to make sure no one expects that this stuff really works in the
6787 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
6788 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
6790 [Ralf S. Engelschall]
6792 *) Fix the generation of two part addresses in perl.
6793 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
6795 *) Add config entry for Linux on MIPS.
6796 [John Tobey <jtobey@channel1.com>]
6798 *) Make links whenever Configure is run, unless we are on Windoze.
6801 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
6802 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
6806 *) Add a useful kludge to allow package maintainers to specify compiler and
6807 other platforms details on the command line without having to patch the
6808 Configure script everytime: One now can use ``perl Configure
6809 <id>:<details>'', i.e. platform ids are allowed to have details appended
6810 to them (seperated by colons). This is treated as there would be a static
6811 pre-configured entry in Configure's %table under key <id> with value
6812 <details> and ``perl Configure <id>'' is called. So, when you want to
6813 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
6814 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
6815 now, which overrides the FreeBSD-elf entry on-the-fly.
6816 [Ralf S. Engelschall]
6818 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
6821 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
6822 on the `perl Configure ...' command line. This way one can compile
6823 OpenSSL libraries with Position Independent Code (PIC) which is needed
6824 for linking it into DSOs.
6825 [Ralf S. Engelschall]
6827 *) Remarkably, export ciphers were totally broken and no-one had noticed!
6831 *) Cleaned up the LICENSE document: The official contact for any license
6832 questions now is the OpenSSL core team under openssl-core@openssl.org.
6833 And add a paragraph about the dual-license situation to make sure people
6834 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
6835 to the OpenSSL toolkit.
6836 [Ralf S. Engelschall]
6838 *) General source tree makefile cleanups: Made `making xxx in yyy...'
6839 display consistent in the source tree and replaced `/bin/rm' by `rm'.
6840 Additonally cleaned up the `make links' target: Remove unnecessary
6841 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
6842 to speed processing and no longer clutter the display with confusing
6843 stuff. Instead only the actually done links are displayed.
6844 [Ralf S. Engelschall]
6846 *) Permit null encryption ciphersuites, used for authentication only. It used
6847 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
6848 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
6852 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
6853 signed attributes when verifying signatures (this would break them),
6854 the detached data encoding was wrong and public keys obtained using
6855 X509_get_pubkey() weren't freed.
6858 *) Add text documentation for the BUFFER functions. Also added a work around
6859 to a Win95 console bug. This was triggered by the password read stuff: the
6860 last character typed gets carried over to the next fread(). If you were
6861 generating a new cert request using 'req' for example then the last
6862 character of the passphrase would be CR which would then enter the first
6866 *) Added the new `Includes OpenSSL Cryptography Software' button as
6867 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
6868 button and can be used by applications based on OpenSSL to show the
6869 relationship to the OpenSSL project.
6870 [Ralf S. Engelschall]
6872 *) Remove confusing variables in function signatures in files
6873 ssl/ssl_lib.c and ssl/ssl.h.
6874 [Lennart Bong <lob@kulthea.stacken.kth.se>]
6876 *) Don't install bss_file.c under PREFIX/include/
6877 [Lennart Bong <lob@kulthea.stacken.kth.se>]
6879 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
6880 functions that return function pointers and has support for NT specific
6881 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
6882 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
6883 unsigned to signed types: this was killing the Win32 compile.
6886 *) Add new certificate file to stack functions,
6887 SSL_add_dir_cert_subjects_to_stack() and
6888 SSL_add_file_cert_subjects_to_stack(). These largely supplant
6889 SSL_load_client_CA_file(), and can be used to add multiple certs easily
6890 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
6891 This means that Apache-SSL and similar packages don't have to mess around
6892 to add as many CAs as they want to the preferred list.
6895 *) Experiment with doxygen documentation. Currently only partially applied to
6897 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
6898 openssl.doxy as the configuration file.
6901 *) Get rid of remaining C++-style comments which strict C compilers hate.
6902 [Ralf S. Engelschall, pointed out by Carlos Amengual]
6904 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
6905 compiled in by default: it has problems with large keys.
6908 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
6909 DH private keys and/or callback functions which directly correspond to
6910 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
6911 is needed for applications which have to configure certificates on a
6912 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
6914 For the RSA certificate situation is makes no difference, but
6915 for the DSA certificate situation this fixes the "no shared cipher"
6916 problem where the OpenSSL cipher selection procedure failed because the
6917 temporary keys were not overtaken from the context and the API provided
6918 no way to reconfigure them.
6919 The new functions now let applications reconfigure the stuff and they
6920 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
6921 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
6922 non-public-API function ssl_cert_instantiate() is used as a helper
6923 function and also to reduce code redundancy inside ssl_rsa.c.
6924 [Ralf S. Engelschall]
6926 *) Move s_server -dcert and -dkey options out of the undocumented feature
6927 area because they are useful for the DSA situation and should be
6928 recognized by the users.
6929 [Ralf S. Engelschall]
6931 *) Fix the cipher decision scheme for export ciphers: the export bits are
6932 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
6933 SSL_EXP_MASK. So, the original variable has to be used instead of the
6934 already masked variable.
6935 [Richard Levitte <levitte@stacken.kth.se>]
6937 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
6938 [Richard Levitte <levitte@stacken.kth.se>]
6940 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
6941 from `int' to `unsigned int' because it's a length and initialized by
6942 EVP_DigestFinal() which expects an `unsigned int *'.
6943 [Richard Levitte <levitte@stacken.kth.se>]
6945 *) Don't hard-code path to Perl interpreter on shebang line of Configure
6946 script. Instead use the usual Shell->Perl transition trick.
6947 [Ralf S. Engelschall]
6949 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
6950 (in addition to RSA certificates) to match the behaviour of `openssl dsa
6951 -noout -modulus' as it's already the case for `openssl rsa -noout
6952 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
6953 currently the public key is printed (a decision which was already done by
6954 `openssl dsa -modulus' in the past) which serves a similar purpose.
6955 Additionally the NO_RSA no longer completely removes the whole -modulus
6956 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
6958 [Ralf S. Engelschall]
6960 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
6961 BIO. See the source (crypto/evp/bio_ok.c) for more info.
6962 [Arne Ansper <arne@ats.cyber.ee>]
6964 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
6965 to be added. Now both 'req' and 'ca' can use new objects defined in the
6969 *) Add cool BIO that does syslog (or event log on NT).
6970 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
6972 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
6973 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
6974 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
6975 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
6978 *) Add preliminary config info for new extension code.
6981 *) Make RSA_NO_PADDING really use no padding.
6982 [Ulf Moeller <ulf@fitug.de>]
6984 *) Generate errors when private/public key check is done.
6987 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
6988 for some CRL extensions and new objects added.
6991 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
6992 key usage extension and fuller support for authority key id.
6995 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
6996 padding method for RSA, which is recommended for new applications in PKCS
6997 #1 v2.0 (RFC 2437, October 1998).
6998 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
6999 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
7000 against Bleichbacher's attack on RSA.
7001 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
7004 *) Updates to the new SSL compression code
7005 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7007 *) Fix so that the version number in the master secret, when passed
7008 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
7009 (because the server will not accept higher), that the version number
7010 is 0x03,0x01, not 0x03,0x00
7011 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7013 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
7014 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
7015 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
7018 *) Support for RAW extensions where an arbitrary extension can be
7019 created by including its DER encoding. See apps/openssl.cnf for
7023 *) Make sure latest Perl versions don't interpret some generated C array
7024 code as Perl array code in the crypto/err/err_genc.pl script.
7025 [Lars Weber <3weber@informatik.uni-hamburg.de>]
7027 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
7028 not many people have the assembler. Various Win32 compilation fixes and
7029 update to the INSTALL.W32 file with (hopefully) more accurate Win32
7033 *) Modify configure script 'Configure' to automatically create crypto/date.h
7034 file under Win32 and also build pem.h from pem.org. New script
7035 util/mkfiles.pl to create the MINFO file on environments that can't do a
7036 'make files': perl util/mkfiles.pl >MINFO should work.
7039 *) Major rework of DES function declarations, in the pursuit of correctness
7040 and purity. As a result, many evil casts evaporated, and some weirdness,
7041 too. You may find this causes warnings in your code. Zapping your evil
7042 casts will probably fix them. Mostly.
7045 *) Fix for a typo in asn1.h. Bug fix to object creation script
7046 obj_dat.pl. It considered a zero in an object definition to mean
7047 "end of object": none of the objects in objects.h have any zeros
7048 so it wasn't spotted.
7049 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
7051 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
7052 Masking (CBCM). In the absence of test vectors, the best I have been able
7053 to do is check that the decrypt undoes the encrypt, so far. Send me test
7054 vectors if you have them.
7057 *) Correct calculation of key length for export ciphers (too much space was
7058 allocated for null ciphers). This has not been tested!
7061 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
7062 message is now correct (it understands "crypto" and "ssl" on its
7063 command line). There is also now an "update" option. This will update
7064 the util/ssleay.num and util/libeay.num files with any new functions.
7066 perl util/mkdef.pl crypto ssl update
7067 it will update them.
7070 *) Overhauled the Perl interface (perl/*):
7071 - ported BN stuff to OpenSSL's different BN library
7072 - made the perl/ source tree CVS-aware
7073 - renamed the package from SSLeay to OpenSSL (the files still contain
7074 their history because I've copied them in the repository)
7075 - removed obsolete files (the test scripts will be replaced
7076 by better Test::Harness variants in the future)
7077 [Ralf S. Engelschall]
7079 *) First cut for a very conservative source tree cleanup:
7080 1. merge various obsolete readme texts into doc/ssleay.txt
7081 where we collect the old documents and readme texts.
7082 2. remove the first part of files where I'm already sure that we no
7083 longer need them because of three reasons: either they are just temporary
7084 files which were left by Eric or they are preserved original files where
7085 I've verified that the diff is also available in the CVS via "cvs diff
7086 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
7087 the crypto/md/ stuff).
7088 [Ralf S. Engelschall]
7090 *) More extension code. Incomplete support for subject and issuer alt
7091 name, issuer and authority key id. Change the i2v function parameters
7092 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
7093 what that's for :-) Fix to ASN1 macro which messed up
7094 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
7097 *) Preliminary support for ENUMERATED type. This is largely copied from the
7101 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
7102 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7104 *) Make sure `make rehash' target really finds the `openssl' program.
7105 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7107 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
7108 like to hear about it if this slows down other processors.
7111 *) Add CygWin32 platform information to Configure script.
7112 [Alan Batie <batie@aahz.jf.intel.com>]
7114 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
7115 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
7117 *) New program nseq to manipulate netscape certificate sequences
7120 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
7124 *) Fixes to BN code. Previously the default was to define BN_RECURSION
7125 but the BN code had some problems that would cause failures when
7126 doing certificate verification and some other functions.
7127 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7129 *) Add ASN1 and PEM code to support netscape certificate sequences.
7132 *) Add ASN1 and PEM code to support netscape certificate sequences.
7135 *) Add several PKIX and private extended key usage OIDs.
7138 *) Modify the 'ca' program to handle the new extension code. Modify
7139 openssl.cnf for new extension format, add comments.
7142 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
7143 and add a sample to openssl.cnf so req -x509 now adds appropriate
7147 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
7148 error code, add initial support to X509_print() and x509 application.
7151 *) Takes a deep breath and start addding X509 V3 extension support code. Add
7152 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
7153 stuff is currently isolated and isn't even compiled yet.
7156 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
7157 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
7158 Removed the versions check from X509 routines when loading extensions:
7159 this allows certain broken certificates that don't set the version
7160 properly to be processed.
7163 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
7164 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
7165 can still be regenerated with "make depend".
7168 *) Spelling mistake in C version of CAST-128.
7169 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
7171 *) Changes to the error generation code. The perl script err-code.pl
7172 now reads in the old error codes and retains the old numbers, only
7173 adding new ones if necessary. It also only changes the .err files if new
7174 codes are added. The makefiles have been modified to only insert errors
7175 when needed (to avoid needlessly modifying header files). This is done
7176 by only inserting errors if the .err file is newer than the auto generated
7177 C file. To rebuild all the error codes from scratch (the old behaviour)
7178 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
7179 or delete all the .err files.
7182 *) CAST-128 was incorrectly implemented for short keys. The C version has
7183 been fixed, but is untested. The assembler versions are also fixed, but
7184 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
7185 to regenerate it if needed.
7186 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
7187 Hagino <itojun@kame.net>]
7189 *) File was opened incorrectly in randfile.c.
7190 [Ulf Möller <ulf@fitug.de>]
7192 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
7193 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
7194 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
7195 al: it's just almost always a UTCTime. Note this patch adds new error
7196 codes so do a "make errors" if there are problems.
7199 *) Correct Linux 1 recognition in config.
7200 [Ulf Möller <ulf@fitug.de>]
7202 *) Remove pointless MD5 hash when using DSA keys in ca.
7203 [Anonymous <nobody@replay.com>]
7205 *) Generate an error if given an empty string as a cert directory. Also
7206 generate an error if handed NULL (previously returned 0 to indicate an
7207 error, but didn't set one).
7208 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
7210 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
7213 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
7214 parameters. This was causing a warning which killed off the Win32 compile.
7217 *) Remove C++ style comments from crypto/bn/bn_local.h.
7218 [Neil Costigan <neil.costigan@celocom.com>]
7220 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
7221 based on a text string, looking up short and long names and finally
7222 "dot" format. The "dot" format stuff didn't work. Added new function
7223 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
7224 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
7225 OID is not part of the table.
7228 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
7229 X509_LOOKUP_by_alias().
7232 *) Sort openssl functions by name.
7235 *) Get the gendsa program working (hopefully) and add it to app list. Remove
7236 encryption from sample DSA keys (in case anyone is interested the password
7240 *) Make _all_ *_free functions accept a NULL pointer.
7241 [Frans Heymans <fheymans@isaserver.be>]
7243 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
7245 [Anonymous <nobody@replay.com>]
7247 *) s_server should send the CAfile as acceptable CAs, not its own cert.
7248 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
7250 *) Don't blow it for numeric -newkey arguments to apps/req.
7251 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
7253 *) Temp key "for export" tests were wrong in s3_srvr.c.
7254 [Anonymous <nobody@replay.com>]
7256 *) Add prototype for temp key callback functions
7257 SSL_CTX_set_tmp_{rsa,dh}_callback().
7260 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
7261 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
7264 *) X509_name_add_entry() freed the wrong thing after an error.
7265 [Arne Ansper <arne@ats.cyber.ee>]
7267 *) rsa_eay.c would attempt to free a NULL context.
7268 [Arne Ansper <arne@ats.cyber.ee>]
7270 *) BIO_s_socket() had a broken should_retry() on Windoze.
7271 [Arne Ansper <arne@ats.cyber.ee>]
7273 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
7274 [Arne Ansper <arne@ats.cyber.ee>]
7276 *) Make sure the already existing X509_STORE->depth variable is initialized
7277 in X509_STORE_new(), but document the fact that this variable is still
7278 unused in the certificate verification process.
7279 [Ralf S. Engelschall]
7281 *) Fix the various library and apps files to free up pkeys obtained from
7282 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
7285 *) Fix reference counting in X509_PUBKEY_get(). This makes
7286 demos/maurice/example2.c work, amongst others, probably.
7287 [Steve Henson and Ben Laurie]
7289 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
7290 `openssl' and second, the shortcut symlinks for the `openssl <command>'
7291 are no longer created. This way we have a single and consistent command
7292 line interface `openssl <command>', similar to `cvs <command>'.
7293 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
7295 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
7296 BIT STRING wrapper always have zero unused bits.
7299 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
7302 *) Make the top-level INSTALL documentation easier to understand.
7305 *) Makefiles updated to exit if an error occurs in a sub-directory
7306 make (including if user presses ^C) [Paul Sutton]
7308 *) Make Montgomery context stuff explicit in RSA data structure.
7311 *) Fix build order of pem and err to allow for generated pem.h.
7314 *) Fix renumbering bug in X509_NAME_delete_entry().
7317 *) Enhanced the err-ins.pl script so it makes the error library number
7318 global and can add a library name. This is needed for external ASN1 and
7319 other error libraries.
7322 *) Fixed sk_insert which never worked properly.
7325 *) Fix ASN1 macros so they can handle indefinite length construted
7326 EXPLICIT tags. Some non standard certificates use these: they can now
7330 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
7331 into a single doc/ssleay.txt bundle. This way the information is still
7332 preserved but no longer messes up this directory. Now it's new room for
7333 the new set of documenation files.
7334 [Ralf S. Engelschall]
7336 *) SETs were incorrectly DER encoded. This was a major pain, because they
7337 shared code with SEQUENCEs, which aren't coded the same. This means that
7338 almost everything to do with SETs or SEQUENCEs has either changed name or
7339 number of arguments.
7340 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
7342 *) Fix test data to work with the above.
7345 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
7346 was already fixed by Eric for 0.9.1 it seems.
7347 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
7349 *) Autodetect FreeBSD3.
7352 *) Fix various bugs in Configure. This affects the following platforms:
7356 unixware-2.0-pentium
7360 *) Eliminate generated files from CVS. Reorder tests to regenerate files
7361 before they are needed.
7364 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
7368 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
7370 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
7371 changed SSLeay to OpenSSL in version strings.
7372 [Ralf S. Engelschall]
7374 *) Some fixups to the top-level documents.
7377 *) Fixed the nasty bug where rsaref.h was not found under compile-time
7378 because the symlink to include/ was missing.
7379 [Ralf S. Engelschall]
7381 *) Incorporated the popular no-RSA/DSA-only patches
7382 which allow to compile a RSA-free SSLeay.
7383 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
7385 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
7386 when "ssleay" is still not found.
7387 [Ralf S. Engelschall]
7389 *) Added more platforms to Configure: Cray T3E, HPUX 11,
7390 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
7392 *) Updated the README file.
7393 [Ralf S. Engelschall]
7395 *) Added various .cvsignore files in the CVS repository subdirs
7396 to make a "cvs update" really silent.
7397 [Ralf S. Engelschall]
7399 *) Recompiled the error-definition header files and added
7400 missing symbols to the Win32 linker tables.
7401 [Ralf S. Engelschall]
7403 *) Cleaned up the top-level documents;
7404 o new files: CHANGES and LICENSE
7405 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
7406 o merged COPYRIGHT into LICENSE
7407 o removed obsolete TODO file
7408 o renamed MICROSOFT to INSTALL.W32
7409 [Ralf S. Engelschall]
7411 *) Removed dummy files from the 0.9.1b source tree:
7412 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
7413 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
7414 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
7415 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
7416 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
7417 [Ralf S. Engelschall]
7419 *) Added various platform portability fixes.
7422 *) The Genesis of the OpenSSL rpject:
7423 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
7424 Young and Tim J. Hudson created while they were working for C2Net until
7426 [The OpenSSL Project]
7429 Changes between 0.9.0b and 0.9.1b [not released]
7431 *) Updated a few CA certificates under certs/
7434 *) Changed some BIGNUM api stuff.
7437 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
7438 DGUX x86, Linux Alpha, etc.
7441 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
7442 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
7446 *) Add -strparse option to asn1pars program which parses nested
7448 [Dr Stephen Henson <shenson@bigfoot.com>]
7450 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
7453 *) DSA fix for "ca" program.
7456 *) Added "-genkey" option to "dsaparam" program.
7459 *) Added RIPE MD160 (rmd160) message digest.
7462 *) Added -a (all) option to "ssleay version" command.
7465 *) Added PLATFORM define which is the id given to Configure.
7468 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
7471 *) Extended the ASN.1 parser routines.
7474 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
7477 *) Added a BN_CTX to the BN library.
7480 *) Fixed the weak key values in DES library
7483 *) Changed API in EVP library for cipher aliases.
7486 *) Added support for RC2/64bit cipher.
7489 *) Converted the lhash library to the crypto/mem.c functions.
7492 *) Added more recognized ASN.1 object ids.
7495 *) Added more RSA padding checks for SSL/TLS.
7498 *) Added BIO proxy/filter functionality.
7501 *) Added extra_certs to SSL_CTX which can be used
7502 send extra CA certificates to the client in the CA cert chain sending
7503 process. It can be configured with SSL_CTX_add_extra_chain_cert().
7506 *) Now Fortezza is denied in the authentication phase because
7507 this is key exchange mechanism is not supported by SSLeay at all.
7510 *) Additional PKCS1 checks.
7513 *) Support the string "TLSv1" for all TLS v1 ciphers.
7516 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
7517 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
7520 *) Fixed a few memory leaks.
7523 *) Fixed various code and comment typos.
7526 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
7527 bytes sent in the client random.
7528 [Edward Bishop <ebishop@spyglass.com>]