5 Changes between 0.9.7h and 0.9.8 [xx XXX xxxx]
7 *) Add -utf8 command line and config file option to 'ca'.
8 [Stefan <stf@udoma.org]
10 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
11 involves renaming the source and generated shared-libs for
12 both. The engines will accept the corrected or legacy ids
13 ('ncipher' and '4758_cca' respectively) when binding. NB,
14 this only applies when building 'shared'.
15 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
17 *) Add attribute functions to EVP_PKEY structure. Modify
18 PKCS12_create() to recognize a CSP name attribute and
19 use it. Make -CSP option work again in pkcs12 utility.
22 *) Add new functionality to the bn blinding code:
23 - automatic re-creation of the BN_BLINDING parameters after
24 a fixed number of uses (currently 32)
25 - add new function for parameter creation
26 - introduce flags to control the update behaviour of the
27 BN_BLINDING parameters
28 - hide BN_BLINDING structure
29 Add a second BN_BLINDING slot to the RSA structure to improve
30 performance when a single RSA object is shared among several
34 *) Add support for DTLS.
35 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
37 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
38 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
41 *) Remove buggy and incompletet DH cert support from
42 ssl/ssl_rsa.c and ssl/s3_both.c
45 *) Use SHA-1 instead of MD5 as the default digest algorithm for
46 the apps/openssl applications.
49 *) Compile clean with "-Wall -Wmissing-prototypes
50 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
51 DEBUG_SAFESTACK must also be set.
54 *) Change ./Configure so that certain algorithms can be disabled by default.
55 The new counterpiece to "no-xxx" is "enable-xxx".
57 The patented RC5 and MDC2 algorithms will now be disabled unless
58 "enable-rc5" and "enable-mdc2", respectively, are specified.
60 (IDEA remains enabled despite being patented. This is because IDEA
61 is frequently required for interoperability, and there is no license
62 fee for non-commercial use. As before, "no-idea" can be used to
63 avoid this algorithm.)
67 *) Add processing of proxy certificates (see RFC 3820). This work was
68 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
69 EGEE (Enabling Grids for E-science in Europe).
72 *) RC4 performance overhaul on modern architectures/implementations, such
73 as Intel P4, IA-64 and AMD64.
76 *) New utility extract-section.pl. This can be used specify an alternative
77 section number in a pod file instead of having to treat each file as
78 a separate case in Makefile. This can be done by adding two lines to the
81 =for comment openssl_section:XXX
83 The blank line is mandatory.
87 *) New arguments -certform, -keyform and -pass for s_client and s_server
88 to allow alternative format key and certificate files and passphrase
92 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
93 update associated structures and add various utility functions.
95 Add new policy related verify parameters, include policy checking in
96 standard verify code. Enhance 'smime' application with extra parameters
97 to support policy checking and print out.
100 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
101 Nehemiah processors. These extensions support AES encryption in hardware
102 as well as RNG (though RNG support is currently disabled).
103 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
105 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
108 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
109 [Andy Polyakov and a number of other people]
111 *) Improved PowerPC platform support. Most notably BIGNUM assembler
112 implementation contributed by IBM.
113 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
115 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
116 exponent rather than 'unsigned long'. There is a corresponding change to
117 the new 'rsa_keygen' element of the RSA_METHOD structure.
118 [Jelte Jansen, Geoff Thorpe]
120 *) Functionality for creating the initial serial number file is now
121 moved from CA.pl to the 'ca' utility with a new option -create_serial.
123 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
124 number file to 1, which is bound to cause problems. To avoid
125 the problems while respecting compatibility between different 0.9.7
126 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
127 CA.pl for serial number initialization. With the new release 0.9.8,
128 we can fix the problem directly in the 'ca' utility.)
131 *) Reduced header interdepencies by declaring more opaque objects in
132 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
133 give fewer recursive includes, which could break lazy source code - so
134 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
135 developers should define this symbol when building and using openssl to
136 ensure they track the recommended behaviour, interfaces, [etc], but
137 backwards-compatible behaviour prevails when this isn't defined.
140 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
143 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
144 This will generate a random key of the appropriate length based on the
145 cipher context. The EVP_CIPHER can provide its own random key generation
146 routine to support keys of a specific form. This is used in the des and
147 3des routines to generate a key of the correct parity. Update S/MIME
148 code to use new functions and hence generate correct parity DES keys.
149 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
150 valid (weak or incorrect parity).
153 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
154 as looking them up. This is useful when the verified structure may contain
155 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
156 present unless the new PKCS7_NO_CRL flag is asserted.
159 *) Extend ASN1 oid configuration module. It now additionally accepts the
162 shortName = some long name, 1.2.3.4
165 *) Reimplemented the BN_CTX implementation. There is now no more static
166 limitation on the number of variables it can handle nor the depth of the
167 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
168 information can now expand as required, and rather than having a single
169 static array of bignums, BN_CTX now uses a linked-list of such arrays
170 allowing it to expand on demand whilst maintaining the usefulness of
174 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
175 to allow all RSA operations to function using a single BN_CTX.
178 *) Preliminary support for certificate policy evaluation and checking. This
179 is initially intended to pass the tests outlined in "Conformance Testing
180 of Relying Party Client Certificate Path Processing Logic" v1.07.
183 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
184 remained unused and not that useful. A variety of other little bignum
185 tweaks and fixes have also been made continuing on from the audit (see
189 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
190 associated ASN1, EVP and SSL functions and old ASN1 macros.
193 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
194 and this should never fail. So the return value from the use of
195 BN_set_word() (which can fail due to needless expansion) is now deprecated;
196 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
199 *) BN_CTX_get() should return zero-valued bignums, providing the same
200 initialised value as BN_new().
201 [Geoff Thorpe, suggested by Ulf Möller]
203 *) Support for inhibitAnyPolicy certificate extension.
206 *) An audit of the BIGNUM code is underway, for which debugging code is
207 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
208 is considered valid when processing BIGNUMs, and causes execution to
209 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
210 further steps are taken to deliberately pollute unused data in BIGNUM
211 structures to try and expose faulty code further on. For now, openssl will
212 (in its default mode of operation) continue to tolerate the inconsistent
213 forms that it has tolerated in the past, but authors and packagers should
214 consider trying openssl and their own applications when compiled with
215 these debugging symbols defined. It will help highlight potential bugs in
216 their own code, and will improve the test coverage for OpenSSL itself. At
217 some point, these tighter rules will become openssl's default to improve
218 maintainability, though the assert()s and other overheads will remain only
219 in debugging configurations. See bn.h for more details.
220 [Geoff Thorpe, Nils Larsch, Ulf Möller]
222 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
223 that can only be obtained through BN_CTX_new() (which implicitly
224 initialises it). The presence of this function only made it possible
225 to overwrite an existing structure (and cause memory leaks).
228 *) Because of the callback-based approach for implementing LHASH as a
229 template type, lh_insert() adds opaque objects to hash-tables and
230 lh_doall() or lh_doall_arg() are typically used with a destructor callback
231 to clean up those corresponding objects before destroying the hash table
232 (and losing the object pointers). So some over-zealous constifications in
233 LHASH have been relaxed so that lh_insert() does not take (nor store) the
234 objects as "const" and the lh_doall[_arg] callback wrappers are not
235 prototyped to have "const" restrictions on the object pointers they are
236 given (and so aren't required to cast them away any more).
239 *) The tmdiff.h API was so ugly and minimal that our own timing utility
240 (speed) prefers to use its own implementation. The two implementations
241 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
242 its object type properly exposed (MS_TM) instead of casting to/from "char
243 *". This may still change yet if someone realises MS_TM and "ms_time_***"
244 aren't necessarily the greatest nomenclatures - but this is what was used
245 internally to the implementation so I've used that for now.
248 *) Ensure that deprecated functions do not get compiled when
249 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
250 the self-tests were still using deprecated key-generation functions so
251 these have been updated also.
254 *) Reorganise PKCS#7 code to separate the digest location functionality
255 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
256 New function PKCS7_set_digest() to set the digest type for PKCS#7
257 digestedData type. Add additional code to correctly generate the
258 digestedData type and add support for this type in PKCS7 initialization
262 *) New function PKCS7_set0_type_other() this initializes a PKCS7
263 structure of type "other".
266 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
267 sure the loop does correctly stop and breaking ("division by zero")
268 modulus operations are not performed. The (pre-generated) prime
269 table crypto/bn/bn_prime.h was already correct, but it could not be
270 re-generated on some platforms because of the "division by zero"
271 situation in the script.
272 [Ralf S. Engelschall]
274 *) Update support for ECC-based TLS ciphersuites according to
275 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
276 SHA-1 now is only used for "small" curves (where the
277 representation of a field element takes up to 24 bytes); for
278 larger curves, the field element resulting from ECDH is directly
279 used as premaster secret.
280 [Douglas Stebila (Sun Microsystems Laboratories)]
282 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
283 curve secp160r1 to the tests.
284 [Douglas Stebila (Sun Microsystems Laboratories)]
286 *) Add the possibility to load symbols globally with DSO.
287 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
289 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
290 control of the error stack.
293 *) Add support for STORE in ENGINE.
296 *) Add the STORE type. The intention is to provide a common interface
297 to certificate and key stores, be they simple file-based stores, or
298 HSM-type store, or LDAP stores, or...
299 NOTE: The code is currently UNTESTED and isn't really used anywhere.
302 *) Add a generic structure called OPENSSL_ITEM. This can be used to
303 pass a list of arguments to any function as well as provide a way
304 for a function to pass data back to the caller.
307 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
308 works like BUF_strdup() but can be used to duplicate a portion of
309 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
313 *) Add the function sk_find_ex() which works like sk_find(), but will
314 return an index to an element even if an exact match couldn't be
315 found. The index is guaranteed to point at the element where the
316 searched-for key would be inserted to preserve sorting order.
319 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
320 takes an extra flags argument for optional functionality. Currently,
321 the following flags are defined:
323 OBJ_BSEARCH_VALUE_ON_NOMATCH
324 This one gets OBJ_bsearch_ex() to return a pointer to the first
325 element where the comparing function returns a negative or zero
328 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
329 This one gets OBJ_bsearch_ex() to return a pointer to the first
330 element where the comparing function returns zero. This is useful
331 if there are more than one element where the comparing function
335 *) Make it possible to create self-signed certificates with 'openssl ca'
336 in such a way that the self-signed certificate becomes part of the
337 CA database and uses the same mechanisms for serial number generation
338 as all other certificate signing. The new flag '-selfsign' enables
339 this functionality. Adapt CA.sh and CA.pl.in.
342 *) Add functionality to check the public key of a certificate request
343 against a given private. This is useful to check that a certificate
344 request can be signed by that key (self-signing).
347 *) Make it possible to have multiple active certificates with the same
348 subject in the CA index file. This is done only if the keyword
349 'unique_subject' is set to 'no' in the main CA section (default
350 if 'CA_default') of the configuration file. The value is saved
351 with the database itself in a separate index attribute file,
352 named like the index file with '.attr' appended to the name.
355 *) Generate muti valued AVAs using '+' notation in config files for
359 *) Support for nameConstraints certificate extension.
362 *) Support for policyConstraints certificate extension.
365 *) Support for policyMappings certificate extension.
368 *) Make sure the default DSA_METHOD implementation only uses its
369 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
370 and change its own handlers to be NULL so as to remove unnecessary
371 indirection. This lets alternative implementations fallback to the
372 default implementation more easily.
375 *) Support for directoryName in GeneralName related extensions
379 *) Make it possible to link applications using Makefile.shared.
380 Make that possible even when linking against static libraries!
383 *) Support for single pass processing for S/MIME signing. This now
384 means that S/MIME signing can be done from a pipe, in addition
385 cleartext signing (multipart/signed type) is effectively streaming
386 and the signed data does not need to be all held in memory.
388 This is done with a new flag PKCS7_STREAM. When this flag is set
389 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
390 is done after the data is output (and digests calculated) in
394 *) Add full support for -rpath/-R, both in shared libraries and
395 applications, at least on the platforms where it's known how
399 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
400 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
401 will now compute a table of multiples of the generator that
402 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
403 faster (notably in the case of a single point multiplication,
405 [Nils Larsch, Bodo Moeller]
407 *) IPv6 support for certificate extensions. The various extensions
408 which use the IP:a.b.c.d can now take IPv6 addresses using the
409 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
413 *) Added an ENGINE that implements RSA by performing private key
414 exponentiations with the GMP library. The conversions to and from
415 GMP's mpz_t format aren't optimised nor are any montgomery forms
416 cached, and on x86 it appears OpenSSL's own performance has caught up.
417 However there are likely to be other architectures where GMP could
418 provide a boost. This ENGINE is not built in by default, but it can be
419 specified at Configure time and should be accompanied by the necessary
420 linker additions, eg;
421 ./config -DOPENSSL_USE_GMP -lgmp
424 *) "openssl engine" will not display ENGINE/DSO load failure errors when
425 testing availability of engines with "-t" - the old behaviour is
426 produced by increasing the feature's verbosity with "-tt".
429 *) ECDSA routines: under certain error conditions uninitialized BN objects
430 could be freed. Solution: make sure initialization is performed early
431 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
435 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
436 and DH_METHOD (eg. by ENGINE implementations) to override the normal
437 software implementations. For DSA and DH, parameter generation can
438 also be overriden by providing the appropriate method callbacks.
441 *) Change the "progress" mechanism used in key-generation and
442 primality testing to functions that take a new BN_GENCB pointer in
443 place of callback/argument pairs. The new API functions have "_ex"
444 postfixes and the older functions are reimplemented as wrappers for
445 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
446 declarations of the old functions to help (graceful) attempts to
447 migrate to the new functions. Also, the new key-generation API
448 functions operate on a caller-supplied key-structure and return
449 success/failure rather than returning a key or NULL - this is to
450 help make "keygen" another member function of RSA_METHOD etc.
452 Example for using the new callback interface:
454 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
458 BN_GENCB_set(&my_cb, my_callback, my_arg);
460 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
461 /* For the meaning of a, b in calls to my_callback(), see the
462 * documentation of the function that calls the callback.
463 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
464 * my_callback should return 1 if it wants BN_is_prime_ex()
465 * to continue, or 0 to stop.
470 *) Change the ZLIB compression method to be stateful, and make it
471 available to TLS with the number defined in
472 draft-ietf-tls-compression-04.txt.
475 *) Add the ASN.1 structures and functions for CertificatePair, which
476 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
478 CertificatePair ::= SEQUENCE {
479 forward [0] Certificate OPTIONAL,
480 reverse [1] Certificate OPTIONAL,
481 -- at least one of the pair shall be present -- }
483 Also implement the PEM functions to read and write certificate
484 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
486 This needed to be defined, mostly for the sake of the LDAP
487 attribute crossCertificatePair, but may prove useful elsewhere as
491 *) Make it possible to inhibit symlinking of shared libraries in
492 Makefile.shared, for Cygwin's sake.
495 *) Extend the BIGNUM API by creating a function
496 void BN_set_negative(BIGNUM *a, int neg);
497 and a macro that behave like
498 int BN_is_negative(const BIGNUM *a);
500 to avoid the need to access 'a->neg' directly in applications.
503 *) Implement fast modular reduction for pseudo-Mersenne primes
504 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
505 EC_GROUP_new_curve_GFp() will now automatically use this
507 [Nils Larsch <nla@trustcenter.de>]
509 *) Add new lock type (CRYPTO_LOCK_BN).
512 *) Change the ENGINE framework to automatically load engines
513 dynamically from specific directories unless they could be
514 found to already be built in or loaded. Move all the
515 current engines except for the cryptodev one to a new
517 The engines in engines/ are built as shared libraries if
518 the "shared" options was given to ./Configure or ./config.
519 Otherwise, they are inserted in libcrypto.a.
520 /usr/local/ssl/engines is the default directory for dynamic
521 engines, but that can be overriden at configure time through
522 the usual use of --prefix and/or --openssldir, and at run
523 time with the environment variable OPENSSL_ENGINES.
524 [Geoff Thorpe and Richard Levitte]
526 *) Add Makefile.shared, a helper makefile to build shared
527 libraries. Addapt Makefile.org.
530 *) Add version info to Win32 DLLs.
531 [Peter 'Luna' Runestig" <peter@runestig.com>]
533 *) Add new 'medium level' PKCS#12 API. Certificates and keys
534 can be added using this API to created arbitrary PKCS#12
535 files while avoiding the low level API.
537 New options to PKCS12_create(), key or cert can be NULL and
538 will then be omitted from the output file. The encryption
539 algorithm NIDs can be set to -1 for no encryption, the mac
540 iteration count can be set to 0 to omit the mac.
542 Enhance pkcs12 utility by making the -nokeys and -nocerts
543 options work when creating a PKCS#12 file. New option -nomac
544 to omit the mac, NONE can be set for an encryption algorithm.
545 New code is modified to use the enhanced PKCS12_create()
546 instead of the low level API.
549 *) Extend ASN1 encoder to support indefinite length constructed
550 encoding. This can output sequences tags and octet strings in
551 this form. Modify pk7_asn1.c to support indefinite length
552 encoding. This is experimental and needs additional code to
553 be useful, such as an ASN1 bio and some enhanced streaming
556 Extend template encode functionality so that tagging is passed
557 down to the template encoder.
560 *) Let 'openssl req' fail if an argument to '-newkey' is not
561 recognized instead of using RSA as a default.
564 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
565 As these are not official, they are not included in "ALL";
566 the "ECCdraft" ciphersuite group alias can be used to select them.
567 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
569 *) Add ECDH engine support.
570 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
572 *) Add ECDH in new directory crypto/ecdh/.
573 [Douglas Stebila (Sun Microsystems Laboratories)]
575 *) Let BN_rand_range() abort with an error after 100 iterations
576 without success (which indicates a broken PRNG).
579 *) Change BN_mod_sqrt() so that it verifies that the input value
580 is really the square of the return value. (Previously,
581 BN_mod_sqrt would show GIGO behaviour.)
584 *) Add named elliptic curves over binary fields from X9.62, SECG,
585 and WAP/WTLS; add OIDs that were still missing.
587 [Sheueling Chang Shantz and Douglas Stebila
588 (Sun Microsystems Laboratories)]
590 *) Extend the EC library for elliptic curves over binary fields
591 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
594 EC_GF2m_simple_method
598 EC_GROUP_new_curve_GF2m
599 EC_GROUP_set_curve_GF2m
600 EC_GROUP_get_curve_GF2m
601 EC_POINT_set_affine_coordinates_GF2m
602 EC_POINT_get_affine_coordinates_GF2m
603 EC_POINT_set_compressed_coordinates_GF2m
605 Point compression for binary fields is disabled by default for
606 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
609 As binary polynomials are represented as BIGNUMs, various members
610 of the EC_GROUP and EC_POINT data structures can be shared
611 between the implementations for prime fields and binary fields;
612 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
613 are essentially identical to their ..._GFp counterparts.
614 (For simplicity, the '..._GFp' prefix has been dropped from
615 various internal method names.)
617 An internal 'field_div' method (similar to 'field_mul' and
618 'field_sqr') has been added; this is used only for binary fields.
620 [Sheueling Chang Shantz and Douglas Stebila
621 (Sun Microsystems Laboratories)]
623 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
624 through methods ('mul', 'precompute_mult').
626 The generic implementations (now internally called 'ec_wNAF_mul'
627 and 'ec_wNAF_precomputed_mult') remain the default if these
628 methods are undefined.
630 [Sheueling Chang Shantz and Douglas Stebila
631 (Sun Microsystems Laboratories)]
633 *) New function EC_GROUP_get_degree, which is defined through
634 EC_METHOD. For curves over prime fields, this returns the bit
635 length of the modulus.
637 [Sheueling Chang Shantz and Douglas Stebila
638 (Sun Microsystems Laboratories)]
640 *) New functions EC_GROUP_dup, EC_POINT_dup.
641 (These simply call ..._new and ..._copy).
643 [Sheueling Chang Shantz and Douglas Stebila
644 (Sun Microsystems Laboratories)]
646 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
647 Polynomials are represented as BIGNUMs (where the sign bit is not
648 used) in the following functions [macros]:
651 BN_GF2m_sub [= BN_GF2m_add]
652 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
653 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
654 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
656 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
657 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
658 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
659 BN_GF2m_cmp [= BN_ucmp]
661 (Note that only the 'mod' functions are actually for fields GF(2^m).
662 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
664 For some functions, an the irreducible polynomial defining a
665 field can be given as an 'unsigned int[]' with strictly
666 decreasing elements giving the indices of those bits that are set;
667 i.e., p[] represents the polynomial
668 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
670 p[0] > p[1] > ... > p[k] = 0.
671 This applies to the following functions:
676 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
677 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
680 BN_GF2m_mod_solve_quad_arr
684 Conversion can be performed by the following functions:
689 bntest.c has additional tests for binary polynomial arithmetic.
691 Two implementations for BN_GF2m_mod_div() are available.
692 The default algorithm simply uses BN_GF2m_mod_inv() and
693 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
694 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
695 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
697 [Sheueling Chang Shantz and Douglas Stebila
698 (Sun Microsystems Laboratories)]
700 *) Add new error code 'ERR_R_DISABLED' that can be used when some
701 functionality is disabled at compile-time.
702 [Douglas Stebila <douglas.stebila@sun.com>]
704 *) Change default behaviour of 'openssl asn1parse' so that more
705 information is visible when viewing, e.g., a certificate:
707 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
708 mode the content of non-printable OCTET STRINGs is output in a
709 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
710 avoid the appearance of a printable string.
711 [Nils Larsch <nla@trustcenter.de>]
713 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
715 EC_GROUP_set_asn1_flag()
716 EC_GROUP_get_asn1_flag()
717 EC_GROUP_set_point_conversion_form()
718 EC_GROUP_get_point_conversion_form()
719 These control ASN1 encoding details:
720 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
721 has been set to OPENSSL_EC_NAMED_CURVE.
722 - Points are encoded in uncompressed form by default; options for
723 asn1_for are as for point2oct, namely
724 POINT_CONVERSION_COMPRESSED
725 POINT_CONVERSION_UNCOMPRESSED
726 POINT_CONVERSION_HYBRID
728 Also add 'seed' and 'seed_len' members to EC_GROUP with access
732 EC_GROUP_get_seed_len()
733 This is used only for ASN1 purposes (so far).
734 [Nils Larsch <nla@trustcenter.de>]
736 *) Add 'field_type' member to EC_METHOD, which holds the NID
737 of the appropriate field type OID. The new function
738 EC_METHOD_get_field_type() returns this value.
739 [Nils Larsch <nla@trustcenter.de>]
746 providing useful interfaces to EC_POINT_point2oct() and
747 EC_POINT_oct2point().
748 [Nils Larsch <nla@trustcenter.de>]
750 *) Change internals of the EC library so that the functions
751 EC_GROUP_set_generator()
752 EC_GROUP_get_generator()
754 EC_GROUP_get_cofactor()
755 are implemented directly in crypto/ec/ec_lib.c and not dispatched
756 to methods, which would lead to unnecessary code duplication when
757 adding different types of curves.
758 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
760 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
761 arithmetic, and such that modified wNAFs are generated
762 (which avoid length expansion in many cases).
765 *) Add a function EC_GROUP_check_discriminant() (defined via
766 EC_METHOD) that verifies that the curve discriminant is non-zero.
768 Add a function EC_GROUP_check() that makes some sanity tests
769 on a EC_GROUP, its generator and order. This includes
770 EC_GROUP_check_discriminant().
771 [Nils Larsch <nla@trustcenter.de>]
773 *) Add ECDSA in new directory crypto/ecdsa/.
775 Add applications 'openssl ecparam' and 'openssl ecdsa'
776 (these are based on 'openssl dsaparam' and 'openssl dsa').
778 ECDSA support is also included in various other files across the
779 library. Most notably,
780 - 'openssl req' now has a '-newkey ecdsa:file' option;
781 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
782 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
783 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
784 them suitable for ECDSA where domain parameters must be
785 extracted before the specific public key;
786 - ECDSA engine support has been added.
787 [Nils Larsch <nla@trustcenter.de>]
789 *) Include some named elliptic curves, and add OIDs from X9.62,
790 SECG, and WAP/WTLS. Each curve can be obtained from the new
792 EC_GROUP_new_by_curve_name(),
793 and the list of available named curves can be obtained with
794 EC_get_builtin_curves().
795 Also add a 'curve_name' member to EC_GROUP objects, which can be
797 EC_GROUP_set_curve_name()
798 EC_GROUP_get_curve_name()
799 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
801 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
802 was actually never needed) and in BN_mul(). The removal in BN_mul()
803 required a small change in bn_mul_part_recursive() and the addition
804 of the functions bn_cmp_part_words(), bn_sub_part_words() and
805 bn_add_part_words(), which do the same thing as bn_cmp_words(),
806 bn_sub_words() and bn_add_words() except they take arrays with
810 Changes between 0.9.7g and 0.9.7h [XX xxx XXXX]
812 *) Minimal support for X9.31 signatures and PSS padding modes. This is
813 mainly for FIPS compliance and not fully integrated at this stage.
816 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
817 the exponentiation using a fixed-length exponent. (Otherwise,
818 the information leaked through timing could expose the secret key
819 after many signatures; cf. Bleichenbacher's attack on DSA with
823 *) Make a new fixed-window mod_exp implementation the default for
824 RSA, DSA, and DH private-key operations so that the sequence of
825 squares and multiplies and the memory access pattern are
826 independent of the particular secret key. This will mitigate
827 cache-timing and potential related attacks.
829 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
830 and this is automatically used by BN_mod_exp_mont() if the new flag
831 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
832 will use this BN flag for private exponents unless the flag
833 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
834 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
836 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
838 *) Change the client implementation for SSLv23_method() and
839 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
840 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
841 (Previously, the SSL 2.0 backwards compatible Client Hello
842 message format would be used even with SSL_OP_NO_SSLv2.)
845 *) Add support for smime-type MIME parameter in S/MIME messages which some
849 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
850 a threadsafe manner. Modify rsa code to use new function and add calls
851 to dsa and dh code (which had race conditions before).
854 *) Include the fixed error library code in the C error file definitions
855 instead of fixing them up at runtime. This keeps the error code
859 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
861 *) Fixes for newer kerberos headers. NB: the casts are needed because
862 the 'length' field is signed on one version and unsigned on another
863 with no (?) obvious way to tell the difference, without these VC++
864 complains. Also the "definition" of FAR (blank) is no longer included
865 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
866 some needed definitions.
869 *) Undo Cygwin change.
872 *) Added support for proxy certificates according to RFC 3820.
873 Because they may be a security thread to unaware applications,
874 they must be explicitely allowed in run-time. See
875 docs/HOWTO/proxy_certificates.txt for further information.
878 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
880 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
881 server and client random values. Previously
882 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
883 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
885 This change has negligible security impact because:
887 1. Server and client random values still have 24 bytes of pseudo random
890 2. Server and client random values are sent in the clear in the initial
893 3. The master secret is derived using the premaster secret (48 bytes in
894 size for static RSA ciphersuites) as well as client server and random
897 The OpenSSL team would like to thank the UK NISCC for bringing this issue
900 [Stephen Henson, reported by UK NISCC]
902 *) Use Windows randomness collection on Cygwin.
905 *) Fix hang in EGD/PRNGD query when communication socket is closed
906 prematurely by EGD/PRNGD.
907 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
909 *) Prompt for pass phrases when appropriate for PKCS12 input format.
912 *) Back-port of selected performance improvements from development
913 branch, as well as improved support for PowerPC platforms.
916 *) Add lots of checks for memory allocation failure, error codes to indicate
917 failure and freeing up memory if a failure occurs.
918 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
920 *) Add new -passin argument to dgst.
923 *) Perform some character comparisons of different types in X509_NAME_cmp:
924 this is needed for some certificates that reencode DNs into UTF8Strings
925 (in violation of RFC3280) and can't or wont issue name rollover
929 *) Make an explicit check during certificate validation to see that
930 the CA setting in each certificate on the chain is correct. As a
931 side effect always do the following basic checks on extensions,
932 not just when there's an associated purpose to the check:
934 - if there is an unhandled critical extension (unless the user
935 has chosen to ignore this fault)
936 - if the path length has been exceeded (if one is set at all)
937 - that certain extensions fit the associated purpose (if one has
941 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
943 *) Avoid a race condition when CRLs are checked in a multi threaded
944 environment. This would happen due to the reordering of the revoked
945 entries during signature checking and serial number lookup. Now the
946 encoding is cached and the serial number sort performed under a lock.
947 Add new STACK function sk_is_sorted().
950 *) Add Delta CRL to the extension code.
953 *) Various fixes to s3_pkt.c so alerts are sent properly.
954 [David Holmes <d.holmes@f5.com>]
956 *) Reduce the chances of duplicate issuer name and serial numbers (in
957 violation of RFC3280) using the OpenSSL certificate creation utilities.
958 This is done by creating a random 64 bit value for the initial serial
959 number when a serial number file is created or when a self signed
960 certificate is created using 'openssl req -x509'. The initial serial
961 number file is created using 'openssl x509 -next_serial' in CA.pl
962 rather than being initialized to 1.
965 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
967 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
968 by using the Codenomicon TLS Test Tool (CAN-2004-0079)
969 [Joe Orton, Steve Henson]
971 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
973 [Joe Orton, Steve Henson]
975 *) Make it possible to have multiple active certificates with the same
976 subject in the CA index file. This is done only if the keyword
977 'unique_subject' is set to 'no' in the main CA section (default
978 if 'CA_default') of the configuration file. The value is saved
979 with the database itself in a separate index attribute file,
980 named like the index file with '.attr' appended to the name.
983 *) X509 verify fixes. Disable broken certificate workarounds when
984 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
985 keyUsage extension present. Don't accept CRLs with unhandled critical
986 extensions: since verify currently doesn't process CRL extensions this
987 rejects a CRL with *any* critical extensions. Add new verify error codes
991 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
992 A clarification of RFC2560 will require the use of OCTET STRINGs and
993 some implementations cannot handle the current raw format. Since OpenSSL
994 copies and compares OCSP nonces as opaque blobs without any attempt at
995 parsing them this should not create any compatibility issues.
998 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
999 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
1000 this HMAC (and other) operations are several times slower than OpenSSL
1004 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
1005 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1007 *) Use the correct content when signing type "other".
1010 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
1012 *) Fix various bugs revealed by running the NISCC test suite:
1014 Stop out of bounds reads in the ASN1 code when presented with
1015 invalid tags (CAN-2003-0543 and CAN-2003-0544).
1017 Free up ASN1_TYPE correctly if ANY type is invalid (CAN-2003-0545).
1019 If verify callback ignores invalid public key errors don't try to check
1020 certificate signature with the NULL public key.
1024 *) New -ignore_err option in ocsp application to stop the server
1025 exiting on the first error in a request.
1028 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
1029 if the server requested one: as stated in TLS 1.0 and SSL 3.0
1033 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
1034 extra data after the compression methods not only for TLS 1.0
1035 but also for SSL 3.0 (as required by the specification).
1036 [Bodo Moeller; problem pointed out by Matthias Loepfe]
1038 *) Change X509_certificate_type() to mark the key as exported/exportable
1039 when it's 512 *bits* long, not 512 bytes.
1042 *) Change AES_cbc_encrypt() so it outputs exact multiple of
1043 blocks during encryption.
1046 *) Various fixes to base64 BIO and non blocking I/O. On write
1047 flushes were not handled properly if the BIO retried. On read
1048 data was not being buffered properly and had various logic bugs.
1049 This also affects blocking I/O when the data being decoded is a
1053 *) Various S/MIME bugfixes and compatibility changes:
1054 output correct application/pkcs7 MIME type if
1055 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
1056 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
1057 of files as .eml work). Correctly handle very long lines in MIME
1061 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
1063 *) Countermeasure against the Klima-Pokorny-Rosa extension of
1064 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
1065 a protocol version number mismatch like a decryption error
1066 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
1069 *) Turn on RSA blinding by default in the default implementation
1070 to avoid a timing attack. Applications that don't want it can call
1071 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
1072 They would be ill-advised to do so in most cases.
1073 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
1075 *) Change RSA blinding code so that it works when the PRNG is not
1076 seeded (in this case, the secret RSA exponent is abused as
1077 an unpredictable seed -- if it is not unpredictable, there
1078 is no point in blinding anyway). Make RSA blinding thread-safe
1079 by remembering the creator's thread ID in rsa->blinding and
1080 having all other threads use local one-time blinding factors
1081 (this requires more computation than sharing rsa->blinding, but
1082 avoids excessive locking; and if an RSA object is not shared
1083 between threads, blinding will still be very fast).
1086 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
1087 ENGINE as defaults for all supported algorithms irrespective of
1088 the 'flags' parameter. 'flags' is now honoured, so applications
1089 should make sure they are passing it correctly.
1092 *) Target "mingw" now allows native Windows code to be generated in
1093 the Cygwin environment as well as with the MinGW compiler.
1096 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
1098 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
1099 via timing by performing a MAC computation even if incorrrect
1100 block cipher padding has been found. This is a countermeasure
1101 against active attacks where the attacker has to distinguish
1102 between bad padding and a MAC verification error. (CAN-2003-0078)
1104 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
1105 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
1106 Martin Vuagnoux (EPFL, Ilion)]
1108 *) Make the no-err option work as intended. The intention with no-err
1109 is not to have the whole error stack handling routines removed from
1110 libcrypto, it's only intended to remove all the function name and
1111 reason texts, thereby removing some of the footprint that may not
1112 be interesting if those errors aren't displayed anyway.
1114 NOTE: it's still possible for any application or module to have it's
1115 own set of error texts inserted. The routines are there, just not
1116 used by default when no-err is given.
1119 *) Add support for FreeBSD on IA64.
1120 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
1122 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
1123 Kerberos function mit_des_cbc_cksum(). Before this change,
1124 the value returned by DES_cbc_cksum() was like the one from
1125 mit_des_cbc_cksum(), except the bytes were swapped.
1126 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
1128 *) Allow an application to disable the automatic SSL chain building.
1129 Before this a rather primitive chain build was always performed in
1130 ssl3_output_cert_chain(): an application had no way to send the
1131 correct chain if the automatic operation produced an incorrect result.
1133 Now the chain builder is disabled if either:
1135 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
1137 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
1139 The reasoning behind this is that an application would not want the
1140 auto chain building to take place if extra chain certificates are
1141 present and it might also want a means of sending no additional
1142 certificates (for example the chain has two certificates and the
1146 *) Add the possibility to build without the ENGINE framework.
1147 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1149 *) Under Win32 gmtime() can return NULL: check return value in
1150 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
1153 *) DSA routines: under certain error conditions uninitialized BN objects
1154 could be freed. Solution: make sure initialization is performed early
1155 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
1156 Nils Larsch <nla@trustcenter.de> via PR#459)
1159 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
1160 checked on reconnect on the client side, therefore session resumption
1161 could still fail with a "ssl session id is different" error. This
1162 behaviour is masked when SSL_OP_ALL is used due to
1163 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
1164 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1165 followup to PR #377.
1168 *) IA-32 assembler support enhancements: unified ELF targets, support
1169 for SCO/Caldera platforms, fix for Cygwin shared build.
1172 *) Add support for FreeBSD on sparc64. As a consequence, support for
1173 FreeBSD on non-x86 processors is separate from x86 processors on
1174 the config script, much like the NetBSD support.
1175 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
1177 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
1179 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
1182 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
1183 code (06) was taken as the first octet of the session ID and the last
1184 octet was ignored consequently. As a result SSLv2 client side session
1185 caching could not have worked due to the session ID mismatch between
1187 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1191 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
1192 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
1196 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
1197 seems that in spite of existing for more than a year, many application
1198 author have done nothing to provide the necessary callbacks, which
1199 means that this particular engine will not work properly anywhere.
1200 This is a very unfortunate situation which forces us, in the name
1201 of usability, to give the hw_ncipher.c a static lock, which is part
1203 NOTE: This is for the 0.9.7 series ONLY. This hack will never
1204 appear in 0.9.8 or later. We EXPECT application authors to have
1205 dealt properly with this when 0.9.8 is released (unless we actually
1206 make such changes in the libcrypto locking code that changes will
1207 have to be made anyway).
1210 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
1211 octets have been read, EOF or an error occurs. Without this change
1212 some truncated ASN1 structures will not produce an error.
1215 *) Disable Heimdal support, since it hasn't been fully implemented.
1216 Still give the possibility to force the use of Heimdal, but with
1217 warnings and a request that patches get sent to openssl-dev.
1220 *) Add the VC-CE target, introduce the WINCE sysname, and add
1221 INSTALL.WCE and appropriate conditionals to make it build.
1222 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1224 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
1225 cygssl-x.y.z.dll, where x, y and z are the major, minor and
1226 edit numbers of the version.
1227 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
1229 *) Introduce safe string copy and catenation functions
1230 (BUF_strlcpy() and BUF_strlcat()).
1231 [Ben Laurie (CHATS) and Richard Levitte]
1233 *) Avoid using fixed-size buffers for one-line DNs.
1234 [Ben Laurie (CHATS)]
1236 *) Add BUF_MEM_grow_clean() to avoid information leakage when
1237 resizing buffers containing secrets, and use where appropriate.
1238 [Ben Laurie (CHATS)]
1240 *) Avoid using fixed size buffers for configuration file location.
1241 [Ben Laurie (CHATS)]
1243 *) Avoid filename truncation for various CA files.
1244 [Ben Laurie (CHATS)]
1246 *) Use sizeof in preference to magic numbers.
1247 [Ben Laurie (CHATS)]
1249 *) Avoid filename truncation in cert requests.
1250 [Ben Laurie (CHATS)]
1252 *) Add assertions to check for (supposedly impossible) buffer
1254 [Ben Laurie (CHATS)]
1256 *) Don't cache truncated DNS entries in the local cache (this could
1257 potentially lead to a spoofing attack).
1258 [Ben Laurie (CHATS)]
1260 *) Fix various buffers to be large enough for hex/decimal
1261 representations in a platform independent manner.
1262 [Ben Laurie (CHATS)]
1264 *) Add CRYPTO_realloc_clean() to avoid information leakage when
1265 resizing buffers containing secrets, and use where appropriate.
1266 [Ben Laurie (CHATS)]
1268 *) Add BIO_indent() to avoid much slightly worrying code to do
1270 [Ben Laurie (CHATS)]
1272 *) Convert sprintf()/BIO_puts() to BIO_printf().
1273 [Ben Laurie (CHATS)]
1275 *) buffer_gets() could terminate with the buffer only half
1277 [Ben Laurie (CHATS)]
1279 *) Add assertions to prevent user-supplied crypto functions from
1280 overflowing internal buffers by having large block sizes, etc.
1281 [Ben Laurie (CHATS)]
1283 *) New OPENSSL_assert() macro (similar to assert(), but enabled
1285 [Ben Laurie (CHATS)]
1287 *) Eliminate unused copy of key in RC4.
1288 [Ben Laurie (CHATS)]
1290 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
1291 [Ben Laurie (CHATS)]
1293 *) Fix off-by-one error in EGD path.
1294 [Ben Laurie (CHATS)]
1296 *) If RANDFILE path is too long, ignore instead of truncating.
1297 [Ben Laurie (CHATS)]
1299 *) Eliminate unused and incorrectly sized X.509 structure
1301 [Ben Laurie (CHATS)]
1303 *) Eliminate unused and dangerous function knumber().
1304 [Ben Laurie (CHATS)]
1306 *) Eliminate unused and dangerous structure, KSSL_ERR.
1307 [Ben Laurie (CHATS)]
1309 *) Protect against overlong session ID context length in an encoded
1310 session object. Since these are local, this does not appear to be
1312 [Ben Laurie (CHATS)]
1314 *) Change from security patch (see 0.9.6e below) that did not affect
1315 the 0.9.6 release series:
1317 Remote buffer overflow in SSL3 protocol - an attacker could
1318 supply an oversized master key in Kerberos-enabled versions.
1320 [Ben Laurie (CHATS)]
1322 *) Change the SSL kerb5 codes to match RFC 2712.
1325 *) Make -nameopt work fully for req and add -reqopt switch.
1326 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
1328 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
1329 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
1331 *) Make sure tests can be performed even if the corresponding algorithms
1332 have been removed entirely. This was also the last step to make
1333 OpenSSL compilable with DJGPP under all reasonable conditions.
1334 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
1336 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
1337 to allow version independent disabling of normally unselected ciphers,
1338 which may be activated as a side-effect of selecting a single cipher.
1340 (E.g., cipher list string "RSA" enables ciphersuites that are left
1341 out of "ALL" because they do not provide symmetric encryption.
1342 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
1343 [Lutz Jaenicke, Bodo Moeller]
1345 *) Add appropriate support for separate platform-dependent build
1346 directories. The recommended way to make a platform-dependent
1347 build directory is the following (tested on Linux), maybe with
1350 # Place yourself outside of the OpenSSL source tree. In
1351 # this example, the environment variable OPENSSL_SOURCE
1352 # is assumed to contain the absolute OpenSSL source directory.
1353 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
1354 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
1355 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
1356 mkdir -p `dirname $F`
1357 ln -s $OPENSSL_SOURCE/$F $F
1360 To be absolutely sure not to disturb the source tree, a "make clean"
1361 is a good thing. If it isn't successfull, don't worry about it,
1362 it probably means the source directory is very clean.
1365 *) Make sure any ENGINE control commands make local copies of string
1366 pointers passed to them whenever necessary. Otherwise it is possible
1367 the caller may have overwritten (or deallocated) the original string
1368 data when a later ENGINE operation tries to use the stored values.
1369 [Götz Babin-Ebell <babinebell@trustcenter.de>]
1371 *) Improve diagnostics in file reading and command-line digests.
1372 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
1374 *) Add AES modes CFB and OFB to the object database. Correct an
1375 error in AES-CFB decryption.
1378 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
1379 allows existing EVP_CIPHER_CTX structures to be reused after
1380 calling EVP_*Final(). This behaviour is used by encryption
1381 BIOs and some applications. This has the side effect that
1382 applications must explicitly clean up cipher contexts with
1383 EVP_CIPHER_CTX_cleanup() or they will leak memory.
1386 *) Check the values of dna and dnb in bn_mul_recursive before calling
1387 bn_mul_comba (a non zero value means the a or b arrays do not contain
1388 n2 elements) and fallback to bn_mul_normal if either is not zero.
1391 *) Fix escaping of non-ASCII characters when using the -subj option
1392 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
1395 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
1396 form for "surname", serialNumber has no short form.
1397 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
1398 therefore remove "mail" short name for "internet 7".
1399 The OID for unique identifiers in X509 certificates is
1400 x500UniqueIdentifier, not uniqueIdentifier.
1401 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
1404 *) Add an "init" command to the ENGINE config module and auto initialize
1405 ENGINEs. Without any "init" command the ENGINE will be initialized
1406 after all ctrl commands have been executed on it. If init=1 the
1407 ENGINE is initailized at that point (ctrls before that point are run
1408 on the uninitialized ENGINE and after on the initialized one). If
1409 init=0 then the ENGINE will not be iniatialized at all.
1412 *) Fix the 'app_verify_callback' interface so that the user-defined
1413 argument is actually passed to the callback: In the
1414 SSL_CTX_set_cert_verify_callback() prototype, the callback
1415 declaration has been changed from
1418 int (*cb)(X509_STORE_CTX *,void *);
1419 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
1420 i=s->ctx->app_verify_callback(&ctx)
1421 has been changed into
1422 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
1424 To update applications using SSL_CTX_set_cert_verify_callback(),
1425 a dummy argument can be added to their callback functions.
1426 [D. K. Smetters <smetters@parc.xerox.com>]
1428 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
1429 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
1431 *) Add and OPENSSL_LOAD_CONF define which will cause
1432 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
1433 This allows older applications to transparently support certain
1434 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
1435 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
1436 load the config file and OPENSSL_add_all_algorithms_conf() which will
1437 always load it have also been added.
1440 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
1441 Adjust NIDs and EVP layer.
1442 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
1444 *) Config modules support in openssl utility.
1446 Most commands now load modules from the config file,
1447 though in a few (such as version) this isn't done
1448 because it couldn't be used for anything.
1450 In the case of ca and req the config file used is
1451 the same as the utility itself: that is the -config
1452 command line option can be used to specify an
1456 *) Move default behaviour from OPENSSL_config(). If appname is NULL
1457 use "openssl_conf" if filename is NULL use default openssl config file.
1460 *) Add an argument to OPENSSL_config() to allow the use of an alternative
1461 config section name. Add a new flag to tolerate a missing config file
1462 and move code to CONF_modules_load_file().
1465 *) Support for crypto accelerator cards from Accelerated Encryption
1466 Processing, www.aep.ie. (Use engine 'aep')
1467 The support was copied from 0.9.6c [engine] and adapted/corrected
1468 to work with the new engine framework.
1469 [AEP Inc. and Richard Levitte]
1471 *) Support for SureWare crypto accelerator cards from Baltimore
1472 Technologies. (Use engine 'sureware')
1473 The support was copied from 0.9.6c [engine] and adapted
1474 to work with the new engine framework.
1477 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
1478 make the newer ENGINE framework commands for the CHIL engine work.
1479 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
1481 *) Make it possible to produce shared libraries on ReliantUNIX.
1482 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
1484 *) Add the configuration target debug-linux-ppro.
1485 Make 'openssl rsa' use the general key loading routines
1486 implemented in apps.c, and make those routines able to
1487 handle the key format FORMAT_NETSCAPE and the variant
1489 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
1491 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
1492 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
1494 *) Add -keyform to rsautl, and document -engine.
1495 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
1497 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
1498 BIO_R_NO_SUCH_FILE error code rather than the generic
1499 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
1502 *) Add new functions
1504 ERR_peek_last_error_line
1505 ERR_peek_last_error_line_data.
1506 These are similar to
1509 ERR_peek_error_line_data,
1510 but report on the latest error recorded rather than the first one
1511 still in the error queue.
1512 [Ben Laurie, Bodo Moeller]
1514 *) default_algorithms option in ENGINE config module. This allows things
1516 default_algorithms = ALL
1517 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
1520 *) Prelminary ENGINE config module.
1523 *) New experimental application configuration code.
1526 *) Change the AES code to follow the same name structure as all other
1527 symmetric ciphers, and behave the same way. Move everything to
1528 the directory crypto/aes, thereby obsoleting crypto/rijndael.
1529 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
1531 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
1532 [Ben Laurie and Theo de Raadt]
1534 *) Add option to output public keys in req command.
1535 [Massimiliano Pala madwolf@openca.org]
1537 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
1538 (up to about 10% better than before for P-192 and P-224).
1541 *) New functions/macros
1543 SSL_CTX_set_msg_callback(ctx, cb)
1544 SSL_CTX_set_msg_callback_arg(ctx, arg)
1545 SSL_set_msg_callback(ssl, cb)
1546 SSL_set_msg_callback_arg(ssl, arg)
1548 to request calling a callback function
1550 void cb(int write_p, int version, int content_type,
1551 const void *buf, size_t len, SSL *ssl, void *arg)
1553 whenever a protocol message has been completely received
1554 (write_p == 0) or sent (write_p == 1). Here 'version' is the
1555 protocol version according to which the SSL library interprets
1556 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
1557 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
1558 the content type as defined in the SSL 3.0/TLS 1.0 protocol
1559 specification (change_cipher_spec(20), alert(21), handshake(22)).
1560 'buf' and 'len' point to the actual message, 'ssl' to the
1561 SSL object, and 'arg' is the application-defined value set by
1562 SSL[_CTX]_set_msg_callback_arg().
1564 'openssl s_client' and 'openssl s_server' have new '-msg' options
1565 to enable a callback that displays all protocol messages.
1568 *) Change the shared library support so shared libraries are built as
1569 soon as the corresponding static library is finished, and thereby get
1570 openssl and the test programs linked against the shared library.
1571 This still only happens when the keyword "shard" has been given to
1572 the configuration scripts.
1574 NOTE: shared library support is still an experimental thing, and
1575 backward binary compatibility is still not guaranteed.
1576 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
1578 *) Add support for Subject Information Access extension.
1579 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1581 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
1582 additional bytes when new memory had to be allocated, not just
1583 when reusing an existing buffer.
1586 *) New command line and configuration option 'utf8' for the req command.
1587 This allows field values to be specified as UTF8 strings.
1590 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
1591 runs for the former and machine-readable output for the latter.
1594 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
1595 of the e-mail address in the DN (i.e., it will go into a certificate
1596 extension only). The new configuration file option 'email_in_dn = no'
1597 has the same effect.
1598 [Massimiliano Pala madwolf@openca.org]
1600 *) Change all functions with names starting with des_ to be starting
1601 with DES_ instead. Add wrappers that are compatible with libdes,
1602 but are named _ossl_old_des_*. Finally, add macros that map the
1603 des_* symbols to the corresponding _ossl_old_des_* if libdes
1604 compatibility is desired. If OpenSSL 0.9.6c compatibility is
1605 desired, the des_* symbols will be mapped to DES_*, with one
1608 Since we provide two compatibility mappings, the user needs to
1609 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
1610 compatibility is desired. The default (i.e., when that macro
1611 isn't defined) is OpenSSL 0.9.6c compatibility.
1613 There are also macros that enable and disable the support of old
1614 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
1615 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
1616 are defined, the default will apply: to support the old des routines.
1618 In either case, one must include openssl/des.h to get the correct
1619 definitions. Do not try to just include openssl/des_old.h, that
1622 NOTE: This is a major break of an old API into a new one. Software
1623 authors are encouraged to switch to the DES_ style functions. Some
1624 time in the future, des_old.h and the libdes compatibility functions
1625 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
1626 default), and then completely removed.
1629 *) Test for certificates which contain unsupported critical extensions.
1630 If such a certificate is found during a verify operation it is
1631 rejected by default: this behaviour can be overridden by either
1632 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
1633 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
1634 X509_supported_extension() has also been added which returns 1 if a
1635 particular extension is supported.
1638 *) Modify the behaviour of EVP cipher functions in similar way to digests
1639 to retain compatibility with existing code.
1642 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
1643 compatibility with existing code. In particular the 'ctx' parameter does
1644 not have to be to be initialized before the call to EVP_DigestInit() and
1645 it is tidied up after a call to EVP_DigestFinal(). New function
1646 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
1647 EVP_MD_CTX_copy() changed to not require the destination to be
1648 initialized valid and new function EVP_MD_CTX_copy_ex() added which
1649 requires the destination to be valid.
1651 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
1652 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
1655 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
1656 so that complete 'Handshake' protocol structures are kept in memory
1657 instead of overwriting 'msg_type' and 'length' with 'body' data.
1660 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
1661 [Massimo Santin via Richard Levitte]
1663 *) Major restructuring to the underlying ENGINE code. This includes
1664 reduction of linker bloat, separation of pure "ENGINE" manipulation
1665 (initialisation, etc) from functionality dealing with implementations
1666 of specific crypto iterfaces. This change also introduces integrated
1667 support for symmetric ciphers and digest implementations - so ENGINEs
1668 can now accelerate these by providing EVP_CIPHER and EVP_MD
1669 implementations of their own. This is detailed in crypto/engine/README
1670 as it couldn't be adequately described here. However, there are a few
1671 API changes worth noting - some RSA, DSA, DH, and RAND functions that
1672 were changed in the original introduction of ENGINE code have now
1673 reverted back - the hooking from this code to ENGINE is now a good
1674 deal more passive and at run-time, operations deal directly with
1675 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
1676 dereferencing through an ENGINE pointer any more. Also, the ENGINE
1677 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
1678 they were not being used by the framework as there is no concept of a
1679 BIGNUM_METHOD and they could not be generalised to the new
1680 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
1681 ENGINE_cpy() has been removed as it cannot be consistently defined in
1685 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
1688 *) Change mkdef.pl to sort symbols that get the same entry number,
1689 and make sure the automatically generated functions ERR_load_*
1690 become part of libeay.num as well.
1693 *) New function SSL_renegotiate_pending(). This returns true once
1694 renegotiation has been requested (either SSL_renegotiate() call
1695 or HelloRequest/ClientHello receveived from the peer) and becomes
1696 false once a handshake has been completed.
1697 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
1698 sends a HelloRequest, but does not ensure that a handshake takes
1699 place. SSL_renegotiate_pending() is useful for checking if the
1700 client has followed the request.)
1703 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
1704 By default, clients may request session resumption even during
1705 renegotiation (if session ID contexts permit); with this option,
1706 session resumption is possible only in the first handshake.
1708 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
1709 more bits available for options that should not be part of
1710 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
1713 *) Add some demos for certificate and certificate request creation.
1716 *) Make maximum certificate chain size accepted from the peer application
1717 settable (SSL*_get/set_max_cert_list()), as proposed by
1718 "Douglas E. Engert" <deengert@anl.gov>.
1721 *) Add support for shared libraries for Unixware-7
1722 (Boyd Lynn Gerber <gerberb@zenez.com>).
1725 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
1726 be done prior to destruction. Use this to unload error strings from
1727 ENGINEs that load their own error strings. NB: This adds two new API
1728 functions to "get" and "set" this destroy handler in an ENGINE.
1731 *) Alter all existing ENGINE implementations (except "openssl" and
1732 "openbsd") to dynamically instantiate their own error strings. This
1733 makes them more flexible to be built both as statically-linked ENGINEs
1734 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
1735 Also, add stub code to each that makes building them as self-contained
1736 shared-libraries easier (see README.ENGINE).
1739 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
1740 implementations into applications that are completely implemented in
1741 self-contained shared-libraries. The "dynamic" ENGINE exposes control
1742 commands that can be used to configure what shared-library to load and
1743 to control aspects of the way it is handled. Also, made an update to
1744 the README.ENGINE file that brings its information up-to-date and
1745 provides some information and instructions on the "dynamic" ENGINE
1746 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
1749 *) Make it possible to unload ranges of ERR strings with a new
1750 "ERR_unload_strings" function.
1753 *) Add a copy() function to EVP_MD.
1756 *) Make EVP_MD routines take a context pointer instead of just the
1757 md_data void pointer.
1760 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
1761 that the digest can only process a single chunk of data
1762 (typically because it is provided by a piece of
1763 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
1764 is only going to provide a single chunk of data, and hence the
1765 framework needn't accumulate the data for oneshot drivers.
1768 *) As with "ERR", make it possible to replace the underlying "ex_data"
1769 functions. This change also alters the storage and management of global
1770 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
1771 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
1772 index counters. The API functions that use this state have been changed
1773 to take a "class_index" rather than pointers to the class's local STACK
1774 and counter, and there is now an API function to dynamically create new
1775 classes. This centralisation allows us to (a) plug a lot of the
1776 thread-safety problems that existed, and (b) makes it possible to clean
1777 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
1778 such data would previously have always leaked in application code and
1779 workarounds were in place to make the memory debugging turn a blind eye
1780 to it. Application code that doesn't use this new function will still
1781 leak as before, but their memory debugging output will announce it now
1782 rather than letting it slide.
1784 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
1785 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
1786 has a return value to indicate success or failure.
1789 *) Make it possible to replace the underlying "ERR" functions such that the
1790 global state (2 LHASH tables and 2 locks) is only used by the "default"
1791 implementation. This change also adds two functions to "get" and "set"
1792 the implementation prior to it being automatically set the first time
1793 any other ERR function takes place. Ie. an application can call "get",
1794 pass the return value to a module it has just loaded, and that module
1795 can call its own "set" function using that value. This means the
1796 module's "ERR" operations will use (and modify) the error state in the
1797 application and not in its own statically linked copy of OpenSSL code.
1800 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
1801 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
1802 the operation, and provides a more encapsulated way for external code
1803 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
1804 to use these functions rather than manually incrementing the counts.
1806 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
1809 *) Add EVP test program.
1812 *) Add symmetric cipher support to ENGINE. Expect the API to change!
1815 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
1816 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
1817 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
1818 These allow a CRL to be built without having to access X509_CRL fields
1819 directly. Modify 'ca' application to use new functions.
1822 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
1823 bug workarounds. Rollback attack detection is a security feature.
1824 The problem will only arise on OpenSSL servers when TLSv1 is not
1825 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
1826 Software authors not wanting to support TLSv1 will have special reasons
1827 for their choice and can explicitly enable this option.
1828 [Bodo Moeller, Lutz Jaenicke]
1830 *) Rationalise EVP so it can be extended: don't include a union of
1831 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
1832 (similar to those existing for EVP_CIPHER_CTX).
1837 EVP_MD_CTX_init(&md); /* new function call */
1838 EVP_DigestInit(&md, EVP_sha1());
1839 EVP_DigestUpdate(&md, in, len);
1840 EVP_DigestFinal(&md, out, NULL);
1841 EVP_MD_CTX_cleanup(&md); /* new function call */
1845 *) Make DES key schedule conform to the usual scheme, as well as
1846 correcting its structure. This means that calls to DES functions
1847 now have to pass a pointer to a des_key_schedule instead of a
1848 plain des_key_schedule (which was actually always a pointer
1851 des_key_schedule ks;
1853 des_set_key_checked(..., &ks);
1854 des_ncbc_encrypt(..., &ks, ...);
1856 (Note that a later change renames 'des_...' into 'DES_...'.)
1859 *) Initial reduction of linker bloat: the use of some functions, such as
1860 PEM causes large amounts of unused functions to be linked in due to
1861 poor organisation. For example pem_all.c contains every PEM function
1862 which has a knock on effect of linking in large amounts of (unused)
1863 ASN1 code. Grouping together similar functions and splitting unrelated
1864 functions prevents this.
1867 *) Cleanup of EVP macros.
1870 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
1871 correct _ecb suffix.
1874 *) Add initial OCSP responder support to ocsp application. The
1875 revocation information is handled using the text based index
1876 use by the ca application. The responder can either handle
1877 requests generated internally, supplied in files (for example
1878 via a CGI script) or using an internal minimal server.
1881 *) Add configuration choices to get zlib compression for TLS.
1884 *) Changes to Kerberos SSL for RFC 2712 compliance:
1885 1. Implemented real KerberosWrapper, instead of just using
1886 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
1887 2. Implemented optional authenticator field of KerberosWrapper.
1889 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
1890 and authenticator structs; see crypto/krb5/.
1892 Generalized Kerberos calls to support multiple Kerberos libraries.
1893 [Vern Staats <staatsvr@asc.hpc.mil>,
1894 Jeffrey Altman <jaltman@columbia.edu>
1895 via Richard Levitte]
1897 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
1898 already does with RSA. testdsa.h now has 'priv_key/pub_key'
1899 values for each of the key sizes rather than having just
1900 parameters (and 'speed' generating keys each time).
1903 *) Speed up EVP routines.
1906 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
1907 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
1908 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
1909 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
1911 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
1912 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
1913 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
1916 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
1918 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
1921 *) Added the OS2-EMX target.
1922 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
1924 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
1925 to support NCONF routines in extension code. New function CONF_set_nconf()
1926 to allow functions which take an NCONF to also handle the old LHASH
1927 structure: this means that the old CONF compatible routines can be
1928 retained (in particular wrt extensions) without having to duplicate the
1929 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
1932 *) Enhance the general user interface with mechanisms for inner control
1933 and with possibilities to have yes/no kind of prompts.
1936 *) Change all calls to low level digest routines in the library and
1937 applications to use EVP. Add missing calls to HMAC_cleanup() and
1938 don't assume HMAC_CTX can be copied using memcpy().
1939 [Verdon Walker <VWalker@novell.com>, Steve Henson]
1941 *) Add the possibility to control engines through control names but with
1942 arbitrary arguments instead of just a string.
1943 Change the key loaders to take a UI_METHOD instead of a callback
1944 function pointer. NOTE: this breaks binary compatibility with earlier
1945 versions of OpenSSL [engine].
1946 Adapt the nCipher code for these new conditions and add a card insertion
1950 *) Enhance the general user interface with mechanisms to better support
1951 dialog box interfaces, application-defined prompts, the possibility
1952 to use defaults (for example default passwords from somewhere else)
1953 and interrupts/cancellations.
1956 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
1957 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
1960 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
1961 tidy up some unnecessarily weird code in 'sk_new()').
1962 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
1964 *) Change the key loading routines for ENGINEs to use the same kind
1965 callback (pem_password_cb) as all other routines that need this
1969 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
1970 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
1971 than this minimum value is recommended.
1974 *) New random seeder for OpenVMS, using the system process statistics
1975 that are easily reachable.
1978 *) Windows apparently can't transparently handle global
1979 variables defined in DLLs. Initialisations such as:
1981 const ASN1_ITEM *it = &ASN1_INTEGER_it;
1983 wont compile. This is used by the any applications that need to
1984 declare their own ASN1 modules. This was fixed by adding the option
1985 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
1986 needed for static libraries under Win32.
1989 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
1990 setting of purpose and trust fields. New X509_STORE trust and
1991 purpose functions and tidy up setting in other SSL functions.
1994 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
1995 structure. These are inherited by X509_STORE_CTX when it is
1996 initialised. This allows various defaults to be set in the
1997 X509_STORE structure (such as flags for CRL checking and custom
1998 purpose or trust settings) for functions which only use X509_STORE_CTX
1999 internally such as S/MIME.
2001 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
2002 trust settings if they are not set in X509_STORE. This allows X509_STORE
2003 purposes and trust (in S/MIME for example) to override any set by default.
2005 Add command line options for CRL checking to smime, s_client and s_server
2009 *) Initial CRL based revocation checking. If the CRL checking flag(s)
2010 are set then the CRL is looked up in the X509_STORE structure and
2011 its validity and signature checked, then if the certificate is found
2012 in the CRL the verify fails with a revoked error.
2014 Various new CRL related callbacks added to X509_STORE_CTX structure.
2016 Command line options added to 'verify' application to support this.
2018 This needs some additional work, such as being able to handle multiple
2019 CRLs with different times, extension based lookup (rather than just
2020 by subject name) and ultimately more complete V2 CRL extension
2024 *) Add a general user interface API (crypto/ui/). This is designed
2025 to replace things like des_read_password and friends (backward
2026 compatibility functions using this new API are provided).
2027 The purpose is to remove prompting functions from the DES code
2028 section as well as provide for prompting through dialog boxes in
2029 a window system and the like.
2032 *) Add "ex_data" support to ENGINE so implementations can add state at a
2033 per-structure level rather than having to store it globally.
2036 *) Make it possible for ENGINE structures to be copied when retrieved by
2037 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
2038 This causes the "original" ENGINE structure to act like a template,
2039 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
2040 operational state can be localised to each ENGINE structure, despite the
2041 fact they all share the same "methods". New ENGINE structures returned in
2042 this case have no functional references and the return value is the single
2043 structural reference. This matches the single structural reference returned
2044 by ENGINE_by_id() normally, when it is incremented on the pre-existing
2048 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
2049 needs to match any other type at all we need to manually clear the
2053 *) Changes to the "openssl engine" utility to include;
2054 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
2055 about an ENGINE's available control commands.
2056 - executing control commands from command line arguments using the
2057 '-pre' and '-post' switches. '-post' is only used if '-t' is
2058 specified and the ENGINE is successfully initialised. The syntax for
2059 the individual commands are colon-separated, for example;
2060 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
2063 *) New dynamic control command support for ENGINEs. ENGINEs can now
2064 declare their own commands (numbers), names (strings), descriptions,
2065 and input types for run-time discovery by calling applications. A
2066 subset of these commands are implicitly classed as "executable"
2067 depending on their input type, and only these can be invoked through
2068 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
2069 can be based on user input, config files, etc). The distinction is
2070 that "executable" commands cannot return anything other than a boolean
2071 result and can only support numeric or string input, whereas some
2072 discoverable commands may only be for direct use through
2073 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
2074 pointers, or other custom uses. The "executable" commands are to
2075 support parameterisations of ENGINE behaviour that can be
2076 unambiguously defined by ENGINEs and used consistently across any
2077 OpenSSL-based application. Commands have been added to all the
2078 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
2079 control over shared-library paths without source code alterations.
2082 *) Changed all ENGINE implementations to dynamically allocate their
2083 ENGINEs rather than declaring them statically. Apart from this being
2084 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
2085 this also allows the implementations to compile without using the
2086 internal engine_int.h header.
2089 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
2090 'const' value. Any code that should be able to modify a RAND_METHOD
2091 should already have non-const pointers to it (ie. they should only
2092 modify their own ones).
2095 *) Made a variety of little tweaks to the ENGINE code.
2096 - "atalla" and "ubsec" string definitions were moved from header files
2097 to C code. "nuron" string definitions were placed in variables
2098 rather than hard-coded - allowing parameterisation of these values
2099 later on via ctrl() commands.
2100 - Removed unused "#if 0"'d code.
2101 - Fixed engine list iteration code so it uses ENGINE_free() to release
2102 structural references.
2103 - Constified the RAND_METHOD element of ENGINE structures.
2104 - Constified various get/set functions as appropriate and added
2105 missing functions (including a catch-all ENGINE_cpy that duplicates
2106 all ENGINE values onto a new ENGINE except reference counts/state).
2107 - Removed NULL parameter checks in get/set functions. Setting a method
2108 or function to NULL is a way of cancelling out a previously set
2109 value. Passing a NULL ENGINE parameter is just plain stupid anyway
2110 and doesn't justify the extra error symbols and code.
2111 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
2112 flags from engine_int.h to engine.h.
2113 - Changed prototypes for ENGINE handler functions (init(), finish(),
2114 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
2117 *) Implement binary inversion algorithm for BN_mod_inverse in addition
2118 to the algorithm using long division. The binary algorithm can be
2119 used only if the modulus is odd. On 32-bit systems, it is faster
2120 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
2121 roughly 5-15% for 256-bit moduli), so we use it only for moduli
2122 up to 450 bits. In 64-bit environments, the binary algorithm
2123 appears to be advantageous for much longer moduli; here we use it
2124 for moduli up to 2048 bits.
2127 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
2128 could not support the combine flag in choice fields.
2131 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
2132 extensions from a certificate request to the certificate.
2135 *) Allow multiple 'certopt' and 'nameopt' options to be separated
2136 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
2137 file: this allows the display of the certificate about to be
2138 signed to be customised, to allow certain fields to be included
2139 or excluded and extension details. The old system didn't display
2140 multicharacter strings properly, omitted fields not in the policy
2141 and couldn't display additional details such as extensions.
2144 *) Function EC_POINTs_mul for multiple scalar multiplication
2145 of an arbitrary number of elliptic curve points
2146 \sum scalars[i]*points[i],
2147 optionally including the generator defined for the EC_GROUP:
2148 scalar*generator + \sum scalars[i]*points[i].
2150 EC_POINT_mul is a simple wrapper function for the typical case
2151 that the point list has just one item (besides the optional
2155 *) First EC_METHODs for curves over GF(p):
2157 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
2158 operations and provides various method functions that can also
2159 operate with faster implementations of modular arithmetic.
2161 EC_GFp_mont_method() reuses most functions that are part of
2162 EC_GFp_simple_method, but uses Montgomery arithmetic.
2164 [Bodo Moeller; point addition and point doubling
2165 implementation directly derived from source code provided by
2166 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
2168 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
2169 crypto/ec/ec_lib.c):
2171 Curves are EC_GROUP objects (with an optional group generator)
2172 based on EC_METHODs that are built into the library.
2174 Points are EC_POINT objects based on EC_GROUP objects.
2176 Most of the framework would be able to handle curves over arbitrary
2177 finite fields, but as there are no obvious types for fields other
2178 than GF(p), some functions are limited to that for now.
2181 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
2182 that the file contains a complete HTTP response.
2185 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
2186 change the def and num file printf format specifier from "%-40sXXX"
2187 to "%-39s XXX". The latter will always guarantee a space after the
2188 field while the former will cause them to run together if the field
2189 is 40 of more characters long.
2192 *) Constify the cipher and digest 'method' functions and structures
2193 and modify related functions to take constant EVP_MD and EVP_CIPHER
2197 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
2198 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
2201 *) Modify EVP_Digest*() routines so they now return values. Although the
2202 internal software routines can never fail additional hardware versions
2206 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
2208 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
2209 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
2212 ERR_R_NESTED_ASN1_ERROR
2214 ERR_R_MISSING_ASN1_EOS
2215 were 4 .. 9, conflicting with
2216 ERR_LIB_RSA (= ERR_R_RSA_LIB)
2218 ERR_LIB_PEM (= ERR_R_PEM_LIB).
2219 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
2221 Add new error code 'ERR_R_INTERNAL_ERROR'.
2224 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
2228 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
2229 sets the subject name for a new request or supersedes the
2230 subject name in a given request. Formats that can be parsed are
2231 'CN=Some Name, OU=myOU, C=IT'
2233 'CN=Some Name/OU=myOU/C=IT'.
2235 Add options '-batch' and '-verbose' to 'openssl req'.
2236 [Massimiliano Pala <madwolf@hackmasters.net>]
2238 *) Introduce the possibility to access global variables through
2239 functions on platform were that's the best way to handle exporting
2240 global variables in shared libraries. To enable this functionality,
2241 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
2242 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
2243 is normally done by Configure or something similar).
2245 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
2246 in the source file (foo.c) like this:
2248 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
2249 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
2251 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
2252 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
2254 OPENSSL_DECLARE_GLOBAL(int,foo);
2255 #define foo OPENSSL_GLOBAL_REF(foo)
2256 OPENSSL_DECLARE_GLOBAL(double,bar);
2257 #define bar OPENSSL_GLOBAL_REF(bar)
2259 The #defines are very important, and therefore so is including the
2260 header file everywhere where the defined globals are used.
2262 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
2263 of ASN.1 items, but that structure is a bit different.
2265 The largest change is in util/mkdef.pl which has been enhanced with
2266 better and easier to understand logic to choose which symbols should
2267 go into the Windows .def files as well as a number of fixes and code
2268 cleanup (among others, algorithm keywords are now sorted
2269 lexicographically to avoid constant rewrites).
2272 *) In BN_div() keep a copy of the sign of 'num' before writing the
2273 result to 'rm' because if rm==num the value will be overwritten
2274 and produce the wrong result if 'num' is negative: this caused
2275 problems with BN_mod() and BN_nnmod().
2278 *) Function OCSP_request_verify(). This checks the signature on an
2279 OCSP request and verifies the signer certificate. The signer
2280 certificate is just checked for a generic purpose and OCSP request
2284 *) Add OCSP_check_validity() function to check the validity of OCSP
2285 responses. OCSP responses are prepared in real time and may only
2286 be a few seconds old. Simply checking that the current time lies
2287 between thisUpdate and nextUpdate max reject otherwise valid responses
2288 caused by either OCSP responder or client clock inaccuracy. Instead
2289 we allow thisUpdate and nextUpdate to fall within a certain period of
2290 the current time. The age of the response can also optionally be
2291 checked. Two new options -validity_period and -status_age added to
2295 *) If signature or public key algorithm is unrecognized print out its
2296 OID rather that just UNKNOWN.
2299 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
2300 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
2301 ID to be generated from the issuer certificate alone which can then be
2302 passed to OCSP_id_issuer_cmp().
2305 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
2306 ASN1 modules to export functions returning ASN1_ITEM pointers
2307 instead of the ASN1_ITEM structures themselves. This adds several
2308 new macros which allow the underlying ASN1 function/structure to
2309 be accessed transparently. As a result code should not use ASN1_ITEM
2310 references directly (such as &X509_it) but instead use the relevant
2311 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
2312 use of the new ASN1 code on platforms where exporting structures
2313 is problematical (for example in shared libraries) but exporting
2314 functions returning pointers to structures is not.
2317 *) Add support for overriding the generation of SSL/TLS session IDs.
2318 These callbacks can be registered either in an SSL_CTX or per SSL.
2319 The purpose of this is to allow applications to control, if they wish,
2320 the arbitrary values chosen for use as session IDs, particularly as it
2321 can be useful for session caching in multiple-server environments. A
2322 command-line switch for testing this (and any client code that wishes
2323 to use such a feature) has been added to "s_server".
2324 [Geoff Thorpe, Lutz Jaenicke]
2326 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
2327 of the form '#if defined(...) || defined(...) || ...' and
2328 '#if !defined(...) && !defined(...) && ...'. This also avoids
2329 the growing number of special cases it was previously handling.
2332 *) Make all configuration macros available for application by making
2333 sure they are available in opensslconf.h, by giving them names starting
2334 with "OPENSSL_" to avoid conflicts with other packages and by making
2335 sure e_os2.h will cover all platform-specific cases together with
2337 Additionally, it is now possible to define configuration/platform-
2338 specific names (called "system identities"). In the C code, these
2339 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
2340 macro with the name beginning with "OPENSSL_SYS_", which is determined
2341 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
2345 *) New option -set_serial to 'req' and 'x509' this allows the serial
2346 number to use to be specified on the command line. Previously self
2347 signed certificates were hard coded with serial number 0 and the
2348 CA options of 'x509' had to use a serial number in a file which was
2352 *) New options to 'ca' utility to support V2 CRL entry extensions.
2353 Currently CRL reason, invalidity date and hold instruction are
2354 supported. Add new CRL extensions to V3 code and some new objects.
2357 *) New function EVP_CIPHER_CTX_set_padding() this is used to
2358 disable standard block padding (aka PKCS#5 padding) in the EVP
2359 API, which was previously mandatory. This means that the data is
2360 not padded in any way and so the total length much be a multiple
2361 of the block size, otherwise an error occurs.
2364 *) Initial (incomplete) OCSP SSL support.
2367 *) New function OCSP_parse_url(). This splits up a URL into its host,
2368 port and path components: primarily to parse OCSP URLs. New -url
2369 option to ocsp utility.
2372 *) New nonce behavior. The return value of OCSP_check_nonce() now
2373 reflects the various checks performed. Applications can decide
2374 whether to tolerate certain situations such as an absent nonce
2375 in a response when one was present in a request: the ocsp application
2376 just prints out a warning. New function OCSP_add1_basic_nonce()
2377 this is to allow responders to include a nonce in a response even if
2378 the request is nonce-less.
2381 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
2382 skipped when using openssl x509 multiple times on a single input file,
2383 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
2386 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
2387 set string type: to handle setting ASN1_TIME structures. Fix ca
2388 utility to correctly initialize revocation date of CRLs.
2391 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
2392 the clients preferred ciphersuites and rather use its own preferences.
2393 Should help to work around M$ SGC (Server Gated Cryptography) bug in
2394 Internet Explorer by ensuring unchanged hash method during stepup.
2395 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
2398 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
2399 to aes and add a new 'exist' option to print out symbols that don't
2403 *) Additional options to ocsp utility to allow flags to be set and
2404 additional certificates supplied.
2407 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
2408 OCSP client a number of certificate to only verify the response
2412 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
2413 handle the new API. Currently only ECB, CBC modes supported. Add new
2416 Add TLS AES ciphersuites as described in RFC3268, "Advanced
2417 Encryption Standard (AES) Ciphersuites for Transport Layer
2418 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
2419 not enabled by default and were not part of the "ALL" ciphersuite
2420 alias because they were not yet official; they could be
2421 explicitly requested by specifying the "AESdraft" ciphersuite
2422 group alias. In the final release of OpenSSL 0.9.7, the group
2423 alias is called "AES" and is part of "ALL".)
2424 [Ben Laurie, Steve Henson, Bodo Moeller]
2426 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
2427 request to response.
2430 *) Functions for OCSP responders. OCSP_request_onereq_count(),
2431 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
2432 extract information from a certificate request. OCSP_response_create()
2433 creates a response and optionally adds a basic response structure.
2434 OCSP_basic_add1_status() adds a complete single response to a basic
2435 response and returns the OCSP_SINGLERESP structure just added (to allow
2436 extensions to be included for example). OCSP_basic_add1_cert() adds a
2437 certificate to a basic response and OCSP_basic_sign() signs a basic
2438 response with various flags. New helper functions ASN1_TIME_check()
2439 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
2440 (converts ASN1_TIME to GeneralizedTime).
2443 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
2444 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
2445 structure from a certificate. X509_pubkey_digest() digests the public_key
2446 contents: this is used in various key identifiers.
2449 *) Make sk_sort() tolerate a NULL argument.
2450 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
2452 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
2453 passed by the function are trusted implicitly. If any of them signed the
2454 response then it is assumed to be valid and is not verified.
2457 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
2458 to data. This was previously part of the PKCS7 ASN1 code. This
2459 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
2460 [Steve Henson, reported by Kenneth R. Robinette
2461 <support@securenetterm.com>]
2463 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
2464 routines: without these tracing memory leaks is very painful.
2465 Fix leaks in PKCS12 and PKCS7 routines.
2468 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
2469 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
2470 effectively meant GeneralizedTime would never be used. Now it
2471 is initialised to -1 but X509_time_adj() now has to check the value
2472 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
2473 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
2474 [Steve Henson, reported by Kenneth R. Robinette
2475 <support@securenetterm.com>]
2477 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
2478 result in a zero length in the ASN1_INTEGER structure which was
2479 not consistent with the structure when d2i_ASN1_INTEGER() was used
2480 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
2481 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
2482 where it did not print out a minus for negative ASN1_INTEGER.
2485 *) Add summary printout to ocsp utility. The various functions which
2486 convert status values to strings have been renamed to:
2487 OCSP_response_status_str(), OCSP_cert_status_str() and
2488 OCSP_crl_reason_str() and are no longer static. New options
2489 to verify nonce values and to disable verification. OCSP response
2490 printout format cleaned up.
2493 *) Add additional OCSP certificate checks. These are those specified
2494 in RFC2560. This consists of two separate checks: the CA of the
2495 certificate being checked must either be the OCSP signer certificate
2496 or the issuer of the OCSP signer certificate. In the latter case the
2497 OCSP signer certificate must contain the OCSP signing extended key
2498 usage. This check is performed by attempting to match the OCSP
2499 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
2500 in the OCSP_CERTID structures of the response.
2503 *) Initial OCSP certificate verification added to OCSP_basic_verify()
2504 and related routines. This uses the standard OpenSSL certificate
2505 verify routines to perform initial checks (just CA validity) and
2506 to obtain the certificate chain. Then additional checks will be
2507 performed on the chain. Currently the root CA is checked to see
2508 if it is explicitly trusted for OCSP signing. This is used to set
2509 a root CA as a global signing root: that is any certificate that
2510 chains to that CA is an acceptable OCSP signing certificate.
2513 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
2514 extensions from a separate configuration file.
2515 As when reading extensions from the main configuration file,
2516 the '-extensions ...' option may be used for specifying the
2518 [Massimiliano Pala <madwolf@comune.modena.it>]
2520 *) New OCSP utility. Allows OCSP requests to be generated or
2521 read. The request can be sent to a responder and the output
2522 parsed, outputed or printed in text form. Not complete yet:
2523 still needs to check the OCSP response validity.
2526 *) New subcommands for 'openssl ca':
2527 'openssl ca -status <serial>' prints the status of the cert with
2528 the given serial number (according to the index file).
2529 'openssl ca -updatedb' updates the expiry status of certificates
2531 [Massimiliano Pala <madwolf@comune.modena.it>]
2533 *) New '-newreq-nodes' command option to CA.pl. This is like
2534 '-newreq', but calls 'openssl req' with the '-nodes' option
2535 so that the resulting key is not encrypted.
2536 [Damien Miller <djm@mindrot.org>]
2538 *) New configuration for the GNU Hurd.
2539 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
2541 *) Initial code to implement OCSP basic response verify. This
2542 is currently incomplete. Currently just finds the signer's
2543 certificate and verifies the signature on the response.
2546 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
2547 value of OPENSSLDIR. This is available via the new '-d' option
2548 to 'openssl version', and is also included in 'openssl version -a'.
2551 *) Allowing defining memory allocation callbacks that will be given
2552 file name and line number information in additional arguments
2553 (a const char* and an int). The basic functionality remains, as
2554 well as the original possibility to just replace malloc(),
2555 realloc() and free() by functions that do not know about these
2556 additional arguments. To register and find out the current
2557 settings for extended allocation functions, the following
2558 functions are provided:
2560 CRYPTO_set_mem_ex_functions
2561 CRYPTO_set_locked_mem_ex_functions
2562 CRYPTO_get_mem_ex_functions
2563 CRYPTO_get_locked_mem_ex_functions
2565 These work the same way as CRYPTO_set_mem_functions and friends.
2566 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
2567 extended allocation function is enabled.
2568 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
2569 a conventional allocation function is enabled.
2570 [Richard Levitte, Bodo Moeller]
2572 *) Finish off removing the remaining LHASH function pointer casts.
2573 There should no longer be any prototype-casting required when using
2574 the LHASH abstraction, and any casts that remain are "bugs". See
2575 the callback types and macros at the head of lhash.h for details
2576 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
2579 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
2580 If /dev/[u]random devices are not available or do not return enough
2581 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
2583 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
2584 /etc/entropy will be queried once each in this sequence, quering stops
2585 when enough entropy was collected without querying more sockets.
2588 *) Change the Unix RAND_poll() variant to be able to poll several
2589 random devices, as specified by DEVRANDOM, until a sufficient amount
2590 of data has been collected. We spend at most 10 ms on each file
2591 (select timeout) and read in non-blocking mode. DEVRANDOM now
2592 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
2593 (previously it was just the string "/dev/urandom"), so on typical
2594 platforms the 10 ms delay will never occur.
2595 Also separate out the Unix variant to its own file, rand_unix.c.
2596 For VMS, there's a currently-empty rand_vms.c.
2599 *) Move OCSP client related routines to ocsp_cl.c. These
2600 provide utility functions which an application needing
2601 to issue a request to an OCSP responder and analyse the
2602 response will typically need: as opposed to those which an
2603 OCSP responder itself would need which will be added later.
2605 OCSP_request_sign() signs an OCSP request with an API similar
2606 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
2607 response. OCSP_response_get1_basic() extracts basic response
2608 from response. OCSP_resp_find_status(): finds and extracts status
2609 information from an OCSP_CERTID structure (which will be created
2610 when the request structure is built). These are built from lower
2611 level functions which work on OCSP_SINGLERESP structures but
2612 wont normally be used unless the application wishes to examine
2613 extensions in the OCSP response for example.
2615 Replace nonce routines with a pair of functions.
2616 OCSP_request_add1_nonce() adds a nonce value and optionally
2617 generates a random value. OCSP_check_nonce() checks the
2618 validity of the nonce in an OCSP response.
2621 *) Change function OCSP_request_add() to OCSP_request_add0_id().
2622 This doesn't copy the supplied OCSP_CERTID and avoids the
2623 need to free up the newly created id. Change return type
2624 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
2625 This can then be used to add extensions to the request.
2626 Deleted OCSP_request_new(), since most of its functionality
2627 is now in OCSP_REQUEST_new() (and the case insensitive name
2628 clash) apart from the ability to set the request name which
2629 will be added elsewhere.
2632 *) Update OCSP API. Remove obsolete extensions argument from
2633 various functions. Extensions are now handled using the new
2634 OCSP extension code. New simple OCSP HTTP function which
2635 can be used to send requests and parse the response.
2638 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
2639 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
2640 uses the special reorder version of SET OF to sort the attributes
2641 and reorder them to match the encoded order. This resolves a long
2642 standing problem: a verify on a PKCS7 structure just after signing
2643 it used to fail because the attribute order did not match the
2644 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
2645 it uses the received order. This is necessary to tolerate some broken
2646 software that does not order SET OF. This is handled by encoding
2647 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
2648 to produce the required SET OF.
2651 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
2652 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
2653 files to get correct declarations of the ASN.1 item variables.
2656 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
2657 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
2658 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
2659 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
2660 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
2661 ASN1_ITEM and no wrapper functions.
2664 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
2665 replace the old function pointer based I/O routines. Change most of
2666 the *_d2i_bio() and *_d2i_fp() functions to use these.
2669 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
2670 lines, recognice more "algorithms" that can be deselected, and make
2671 it complain about algorithm deselection that isn't recognised.
2674 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
2675 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
2676 to use new functions. Add NO_ASN1_OLD which can be set to remove
2677 some old style ASN1 functions: this can be used to determine if old
2678 code will still work when these eventually go away.
2681 *) New extension functions for OCSP structures, these follow the
2682 same conventions as certificates and CRLs.
2685 *) New function X509V3_add1_i2d(). This automatically encodes and
2686 adds an extension. Its behaviour can be customised with various
2687 flags to append, replace or delete. Various wrappers added for
2688 certifcates and CRLs.
2691 *) Fix to avoid calling the underlying ASN1 print routine when
2692 an extension cannot be parsed. Correct a typo in the
2693 OCSP_SERVICELOC extension. Tidy up print OCSP format.
2696 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
2697 entries for variables.
2700 *) Add functionality to apps/openssl.c for detecting locking
2701 problems: As the program is single-threaded, all we have
2702 to do is register a locking callback using an array for
2703 storing which locks are currently held by the program.
2706 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
2707 SSL_get_ex_data_X509_STORE_idx(), which is used in
2708 ssl_verify_cert_chain() and thus can be called at any time
2709 during TLS/SSL handshakes so that thread-safety is essential.
2710 Unfortunately, the ex_data design is not at all suited
2711 for multi-threaded use, so it probably should be abolished.
2714 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
2715 [Broadcom, tweaked and integrated by Geoff Thorpe]
2717 *) Move common extension printing code to new function
2718 X509V3_print_extensions(). Reorganise OCSP print routines and
2719 implement some needed OCSP ASN1 functions. Add OCSP extensions.
2722 *) New function X509_signature_print() to remove duplication in some
2726 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
2727 set (this was treated exactly the same as SET OF previously). This
2728 is used to reorder the STACK representing the structure to match the
2729 encoding. This will be used to get round a problem where a PKCS7
2730 structure which was signed could not be verified because the STACK
2731 order did not reflect the encoded order.
2734 *) Reimplement the OCSP ASN1 module using the new code.
2737 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
2738 for its ASN1 operations. The old style function pointers still exist
2739 for now but they will eventually go away.
2742 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
2743 completely replaces the old ASN1 functionality with a table driven
2744 encoder and decoder which interprets an ASN1_ITEM structure describing
2745 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
2746 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
2747 has also been converted to the new form.
2750 *) Change BN_mod_exp_recp so that negative moduli are tolerated
2751 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
2752 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
2753 for negative moduli.
2756 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
2757 of not touching the result's sign bit.
2760 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
2764 *) Changed the LHASH code to use prototypes for callbacks, and created
2765 macros to declare and implement thin (optionally static) functions
2766 that provide type-safety and avoid function pointer casting for the
2767 type-specific callbacks.
2770 *) Added Kerberos Cipher Suites to be used with TLS, as written in
2772 [Veers Staats <staatsvr@asc.hpc.mil>,
2773 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
2775 *) Reformat the FAQ so the different questions and answers can be divided
2776 in sections depending on the subject.
2779 *) Have the zlib compression code load ZLIB.DLL dynamically under
2783 *) New function BN_mod_sqrt for computing square roots modulo a prime
2784 (using the probabilistic Tonelli-Shanks algorithm unless
2785 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
2786 be handled deterministically).
2787 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
2789 *) Make BN_mod_inverse faster by explicitly handling small quotients
2790 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
2791 512 bits], about 30% for larger ones [1024 or 2048 bits].)
2794 *) New function BN_kronecker.
2797 *) Fix BN_gcd so that it works on negative inputs; the result is
2798 positive unless both parameters are zero.
2799 Previously something reasonably close to an infinite loop was
2800 possible because numbers could be growing instead of shrinking
2801 in the implementation of Euclid's algorithm.
2804 *) Fix BN_is_word() and BN_is_one() macros to take into account the
2805 sign of the number in question.
2807 Fix BN_is_word(a,w) to work correctly for w == 0.
2809 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
2810 because its test if the absolute value of 'a' equals 'w'.
2811 Note that BN_abs_is_word does *not* handle w == 0 reliably;
2812 it exists mostly for use in the implementations of BN_is_zero(),
2813 BN_is_one(), and BN_is_word().
2816 *) New function BN_swap.
2819 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
2820 the exponentiation functions are more likely to produce reasonable
2821 results on negative inputs.
2824 *) Change BN_mod_mul so that the result is always non-negative.
2825 Previously, it could be negative if one of the factors was negative;
2826 I don't think anyone really wanted that behaviour.
2829 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
2830 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
2831 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
2832 and add new functions:
2841 BN_mod_lshift1_quick
2845 These functions always generate non-negative results.
2847 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
2848 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
2850 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
2851 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
2852 be reduced modulo m.
2853 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
2856 The following entry accidentily appeared in the CHANGES file
2857 distributed with OpenSSL 0.9.7. The modifications described in
2858 it do *not* apply to OpenSSL 0.9.7.
2860 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
2861 was actually never needed) and in BN_mul(). The removal in BN_mul()
2862 required a small change in bn_mul_part_recursive() and the addition
2863 of the functions bn_cmp_part_words(), bn_sub_part_words() and
2864 bn_add_part_words(), which do the same thing as bn_cmp_words(),
2865 bn_sub_words() and bn_add_words() except they take arrays with
2870 *) In 'openssl passwd', verify passwords read from the terminal
2871 unless the '-salt' option is used (which usually means that
2872 verification would just waste user's time since the resulting
2873 hash is going to be compared with some given password hash)
2874 or the new '-noverify' option is used.
2876 This is an incompatible change, but it does not affect
2877 non-interactive use of 'openssl passwd' (passwords on the command
2878 line, '-stdin' option, '-in ...' option) and thus should not
2882 *) Remove all references to RSAref, since there's no more need for it.
2885 *) Make DSO load along a path given through an environment variable
2886 (SHLIB_PATH) with shl_load().
2889 *) Constify the ENGINE code as a result of BIGNUM constification.
2890 Also constify the RSA code and most things related to it. In a
2891 few places, most notable in the depth of the ASN.1 code, ugly
2892 casts back to non-const were required (to be solved at a later
2896 *) Make it so the openssl application has all engines loaded by default.
2899 *) Constify the BIGNUM routines a little more.
2902 *) Add the following functions:
2904 ENGINE_load_cswift()
2906 ENGINE_load_atalla()
2908 ENGINE_load_builtin_engines()
2910 That way, an application can itself choose if external engines that
2911 are built-in in OpenSSL shall ever be used or not. The benefit is
2912 that applications won't have to be linked with libdl or other dso
2913 libraries unless it's really needed.
2915 Changed 'openssl engine' to load all engines on demand.
2916 Changed the engine header files to avoid the duplication of some
2917 declarations (they differed!).
2920 *) 'openssl engine' can now list capabilities.
2923 *) Better error reporting in 'openssl engine'.
2926 *) Never call load_dh_param(NULL) in s_server.
2929 *) Add engine application. It can currently list engines by name and
2930 identity, and test if they are actually available.
2933 *) Improve RPM specification file by forcing symbolic linking and making
2934 sure the installed documentation is also owned by root.root.
2935 [Damien Miller <djm@mindrot.org>]
2937 *) Give the OpenSSL applications more possibilities to make use of
2938 keys (public as well as private) handled by engines.
2941 *) Add OCSP code that comes from CertCo.
2944 *) Add VMS support for the Rijndael code.
2947 *) Added untested support for Nuron crypto accelerator.
2950 *) Add support for external cryptographic devices. This code was
2951 previously distributed separately as the "engine" branch.
2952 [Geoff Thorpe, Richard Levitte]
2954 *) Rework the filename-translation in the DSO code. It is now possible to
2955 have far greater control over how a "name" is turned into a filename
2956 depending on the operating environment and any oddities about the
2957 different shared library filenames on each system.
2960 *) Support threads on FreeBSD-elf in Configure.
2963 *) Fix for SHA1 assembly problem with MASM: it produces
2964 warnings about corrupt line number information when assembling
2965 with debugging information. This is caused by the overlapping
2967 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
2970 NCONF_get_number() has no error checking at all. As a replacement,
2971 NCONF_get_number_e() is defined (_e for "error checking") and is
2972 promoted strongly. The old NCONF_get_number is kept around for
2973 binary backward compatibility.
2974 Make it possible for methods to load from something other than a BIO,
2975 by providing a function pointer that is given a name instead of a BIO.
2976 For example, this could be used to load configuration data from an
2980 *) Fix for non blocking accept BIOs. Added new I/O special reason
2981 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
2982 with non blocking I/O was not possible because no retry code was
2983 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
2987 *) Added the beginnings of Rijndael support.
2990 *) Fix for bug in DirectoryString mask setting. Add support for
2991 X509_NAME_print_ex() in 'req' and X509_print_ex() function
2992 to allow certificate printing to more controllable, additional
2993 'certopt' option to 'x509' to allow new printing options to be
2997 *) Clean old EAY MD5 hack from e_os.h.
3000 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
3002 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3003 by using the Codenomicon TLS Test Tool (CAN-2004-0079)
3004 [Joe Orton, Steve Henson]
3006 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
3008 *) Fix additional bug revealed by the NISCC test suite:
3010 Stop bug triggering large recursion when presented with
3011 certain ASN.1 tags (CAN-2003-0851)
3014 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
3016 *) Fix various bugs revealed by running the NISCC test suite:
3018 Stop out of bounds reads in the ASN1 code when presented with
3019 invalid tags (CAN-2003-0543 and CAN-2003-0544).
3021 If verify callback ignores invalid public key errors don't try to check
3022 certificate signature with the NULL public key.
3026 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3027 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3031 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3032 extra data after the compression methods not only for TLS 1.0
3033 but also for SSL 3.0 (as required by the specification).
3034 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3036 *) Change X509_certificate_type() to mark the key as exported/exportable
3037 when it's 512 *bits* long, not 512 bytes.
3040 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
3042 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3043 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3044 a protocol version number mismatch like a decryption error
3045 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3048 *) Turn on RSA blinding by default in the default implementation
3049 to avoid a timing attack. Applications that don't want it can call
3050 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3051 They would be ill-advised to do so in most cases.
3052 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3054 *) Change RSA blinding code so that it works when the PRNG is not
3055 seeded (in this case, the secret RSA exponent is abused as
3056 an unpredictable seed -- if it is not unpredictable, there
3057 is no point in blinding anyway). Make RSA blinding thread-safe
3058 by remembering the creator's thread ID in rsa->blinding and
3059 having all other threads use local one-time blinding factors
3060 (this requires more computation than sharing rsa->blinding, but
3061 avoids excessive locking; and if an RSA object is not shared
3062 between threads, blinding will still be very fast).
3065 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
3067 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3068 via timing by performing a MAC computation even if incorrrect
3069 block cipher padding has been found. This is a countermeasure
3070 against active attacks where the attacker has to distinguish
3071 between bad padding and a MAC verification error. (CAN-2003-0078)
3073 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3074 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3075 Martin Vuagnoux (EPFL, Ilion)]
3077 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
3079 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
3080 memory from it's contents. This is done with a counter that will
3081 place alternating values in each byte. This can be used to solve
3082 two issues: 1) the removal of calls to memset() by highly optimizing
3083 compilers, and 2) cleansing with other values than 0, since those can
3084 be read through on certain media, for example a swap space on disk.
3087 *) Bugfix: client side session caching did not work with external caching,
3088 because the session->cipher setting was not restored when reloading
3089 from the external cache. This problem was masked, when
3090 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
3091 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
3094 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
3095 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
3096 [Zeev Lieber <zeev-l@yahoo.com>]
3098 *) Undo an undocumented change introduced in 0.9.6e which caused
3099 repeated calls to OpenSSL_add_all_ciphers() and
3100 OpenSSL_add_all_digests() to be ignored, even after calling
3104 *) Change the default configuration reader to deal with last line not
3105 being properly terminated.
3108 *) Change X509_NAME_cmp() so it applies the special rules on handling
3109 DN values that are of type PrintableString, as well as RDNs of type
3110 emailAddress where the value has the type ia5String.
3111 [stefank@valicert.com via Richard Levitte]
3113 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
3114 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
3115 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
3116 the bitwise-OR of the two for use by the majority of applications
3117 wanting this behaviour, and update the docs. The documented
3118 behaviour and actual behaviour were inconsistent and had been
3119 changing anyway, so this is more a bug-fix than a behavioural
3121 [Geoff Thorpe, diagnosed by Nadav Har'El]
3123 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
3124 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
3127 *) Fix initialization code race conditions in
3128 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
3129 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
3130 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
3131 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
3132 ssl2_get_cipher_by_char(),
3133 ssl3_get_cipher_by_char().
3134 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
3136 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
3137 the cached sessions are flushed, as the remove_cb() might use ex_data
3138 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
3139 (see [openssl.org #212]).
3140 [Geoff Thorpe, Lutz Jaenicke]
3142 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
3143 length, instead of the encoding length to d2i_ASN1_OBJECT.
3146 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
3148 *) [In 0.9.6g-engine release:]
3149 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
3150 [Lynn Gazis <lgazis@rainbow.com>]
3152 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
3154 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
3155 and get fix the header length calculation.
3156 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
3157 Alon Kantor <alonk@checkpoint.com> (and others),
3160 *) Use proper error handling instead of 'assertions' in buffer
3161 overflow checks added in 0.9.6e. This prevents DoS (the
3162 assertions could call abort()).
3163 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
3165 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
3167 *) Add various sanity checks to asn1_get_length() to reject
3168 the ASN1 length bytes if they exceed sizeof(long), will appear
3169 negative or the content length exceeds the length of the
3171 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3173 *) Fix cipher selection routines: ciphers without encryption had no flags
3174 for the cipher strength set and where therefore not handled correctly
3175 by the selection routines (PR #130).
3178 *) Fix EVP_dsa_sha macro.
3182 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
3183 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
3184 that was added in OpenSSL 0.9.6d.
3186 As the countermeasure turned out to be incompatible with some
3187 broken SSL implementations, the new option is part of SSL_OP_ALL.
3188 SSL_OP_ALL is usually employed when compatibility with weird SSL
3189 implementations is desired (e.g. '-bugs' option to 's_client' and
3190 's_server'), so the new option is automatically set in many
3194 *) Changes in security patch:
3196 Changes marked "(CHATS)" were sponsored by the Defense Advanced
3197 Research Projects Agency (DARPA) and Air Force Research Laboratory,
3198 Air Force Materiel Command, USAF, under agreement number
3201 *) Add various sanity checks to asn1_get_length() to reject
3202 the ASN1 length bytes if they exceed sizeof(long), will appear
3203 negative or the content length exceeds the length of the
3204 supplied buffer. (CAN-2002-0659)
3205 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3207 *) Assertions for various potential buffer overflows, not known to
3209 [Ben Laurie (CHATS)]
3211 *) Various temporary buffers to hold ASCII versions of integers were
3212 too small for 64 bit platforms. (CAN-2002-0655)
3213 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
3215 *) Remote buffer overflow in SSL3 protocol - an attacker could
3216 supply an oversized session ID to a client. (CAN-2002-0656)
3217 [Ben Laurie (CHATS)]
3219 *) Remote buffer overflow in SSL2 protocol - an attacker could
3220 supply an oversized client master key. (CAN-2002-0656)
3221 [Ben Laurie (CHATS)]
3223 Changes between 0.9.6c and 0.9.6d [9 May 2002]
3225 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
3226 encoded as NULL) with id-dsa-with-sha1.
3227 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
3229 *) Check various X509_...() return values in apps/req.c.
3230 [Nils Larsch <nla@trustcenter.de>]
3232 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
3233 an end-of-file condition would erronously be flagged, when the CRLF
3234 was just at the end of a processed block. The bug was discovered when
3235 processing data through a buffering memory BIO handing the data to a
3236 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
3237 <ptsekov@syntrex.com> and Nedelcho Stanev.
3240 *) Implement a countermeasure against a vulnerability recently found
3241 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
3242 before application data chunks to avoid the use of known IVs
3243 with data potentially chosen by the attacker.
3246 *) Fix length checks in ssl3_get_client_hello().
3249 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
3250 to prevent ssl3_read_internal() from incorrectly assuming that
3251 ssl3_read_bytes() found application data while handshake
3252 processing was enabled when in fact s->s3->in_read_app_data was
3253 merely automatically cleared during the initial handshake.
3254 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
3256 *) Fix object definitions for Private and Enterprise: they were not
3257 recognized in their shortname (=lowercase) representation. Extend
3258 obj_dat.pl to issue an error when using undefined keywords instead
3259 of silently ignoring the problem (Svenning Sorensen
3260 <sss@sss.dnsalias.net>).
3263 *) Fix DH_generate_parameters() so that it works for 'non-standard'
3264 generators, i.e. generators other than 2 and 5. (Previously, the
3265 code did not properly initialise the 'add' and 'rem' values to
3266 BN_generate_prime().)
3268 In the new general case, we do not insist that 'generator' is
3269 actually a primitive root: This requirement is rather pointless;
3270 a generator of the order-q subgroup is just as good, if not
3274 *) Map new X509 verification errors to alerts. Discovered and submitted by
3275 Tom Wu <tom@arcot.com>.
3278 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
3279 returning non-zero before the data has been completely received
3280 when using non-blocking I/O.
3281 [Bodo Moeller; problem pointed out by John Hughes]
3283 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
3284 [Ben Laurie, Lutz Jaenicke]
3286 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
3287 Yoram Zahavi <YoramZ@gilian.com>).
3290 *) Add information about CygWin 1.3 and on, and preserve proper
3291 configuration for the versions before that.
3292 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
3294 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
3295 check whether we deal with a copy of a session and do not delete from
3296 the cache in this case. Problem reported by "Izhar Shoshani Levi"
3297 <izhar@checkpoint.com>.
3300 *) Do not store session data into the internal session cache, if it
3301 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
3302 flag is set). Proposed by Aslam <aslam@funk.com>.
3305 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
3309 *) [In 0.9.6d-engine release:]
3310 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3311 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3313 *) Add the configuration target linux-s390x.
3314 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
3316 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
3317 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
3318 variable as an indication that a ClientHello message has been
3319 received. As the flag value will be lost between multiple
3320 invocations of ssl3_accept when using non-blocking I/O, the
3321 function may not be aware that a handshake has actually taken
3322 place, thus preventing a new session from being added to the
3325 To avoid this problem, we now set s->new_session to 2 instead of
3326 using a local variable.
3327 [Lutz Jaenicke, Bodo Moeller]
3329 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
3330 if the SSL_R_LENGTH_MISMATCH error is detected.
3331 [Geoff Thorpe, Bodo Moeller]
3333 *) New 'shared_ldflag' column in Configure platform table.
3336 *) Fix EVP_CIPHER_mode macro.
3337 ["Dan S. Camper" <dan@bti.net>]
3339 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
3340 type, we must throw them away by setting rr->length to 0.
3341 [D P Chang <dpc@qualys.com>]
3343 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
3345 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
3346 <Dominikus.Scherkl@biodata.com>. (The previous implementation
3347 worked incorrectly for those cases where range = 10..._2 and
3348 3*range is two bits longer than range.)
3351 *) Only add signing time to PKCS7 structures if it is not already
3355 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
3356 OBJ_ld_ce should be OBJ_id_ce.
3357 Also some ip-pda OIDs in crypto/objects/objects.txt were
3358 incorrect (cf. RFC 3039).
3359 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
3361 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
3362 returns early because it has nothing to do.
3363 [Andy Schneider <andy.schneider@bjss.co.uk>]
3365 *) [In 0.9.6c-engine release:]
3366 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
3367 [Andy Schneider <andy.schneider@bjss.co.uk>]
3369 *) [In 0.9.6c-engine release:]
3370 Add support for Cryptographic Appliance's keyserver technology.
3371 (Use engine 'keyclient')
3372 [Cryptographic Appliances and Geoff Thorpe]
3374 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
3375 is called via tools/c89.sh because arguments have to be
3376 rearranged (all '-L' options must appear before the first object
3378 [Richard Shapiro <rshapiro@abinitio.com>]
3380 *) [In 0.9.6c-engine release:]
3381 Add support for Broadcom crypto accelerator cards, backported
3383 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
3385 *) [In 0.9.6c-engine release:]
3386 Add support for SureWare crypto accelerator cards from
3387 Baltimore Technologies. (Use engine 'sureware')
3388 [Baltimore Technologies and Mark Cox]
3390 *) [In 0.9.6c-engine release:]
3391 Add support for crypto accelerator cards from Accelerated
3392 Encryption Processing, www.aep.ie. (Use engine 'aep')
3393 [AEP Inc. and Mark Cox]
3395 *) Add a configuration entry for gcc on UnixWare.
3396 [Gary Benson <gbenson@redhat.com>]
3398 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
3399 messages are stored in a single piece (fixed-length part and
3400 variable-length part combined) and fix various bugs found on the way.
3403 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
3404 instead. BIO_gethostbyname() does not know what timeouts are
3405 appropriate, so entries would stay in cache even when they have
3407 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
3409 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
3410 faced with a pathologically small ClientHello fragment that does
3411 not contain client_version: Instead of aborting with an error,
3412 simply choose the highest available protocol version (i.e.,
3413 TLS 1.0 unless it is disabled). In practice, ClientHello
3414 messages are never sent like this, but this change gives us
3415 strictly correct behaviour at least for TLS.
3418 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
3419 never resets s->method to s->ctx->method when called from within
3420 one of the SSL handshake functions.
3421 [Bodo Moeller; problem pointed out by Niko Baric]
3423 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
3424 (sent using the client's version number) if client_version is
3425 smaller than the protocol version in use. Also change
3426 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
3427 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
3428 the client will at least see that alert.
3431 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
3435 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
3436 client receives HelloRequest while in a handshake.
3437 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
3439 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
3440 should end in 'break', not 'goto end' which circuments various
3441 cleanups done in state SSL_ST_OK. But session related stuff
3442 must be disabled for SSL_ST_OK in the case that we just sent a
3445 Also avoid some overhead by not calling ssl_init_wbio_buffer()
3446 before just sending a HelloRequest.
3447 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
3449 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
3450 reveal whether illegal block cipher padding was found or a MAC
3451 verification error occured. (Neither SSLerr() codes nor alerts
3452 are directly visible to potential attackers, but the information
3453 may leak via logfiles.)
3455 Similar changes are not required for the SSL 2.0 implementation
3456 because the number of padding bytes is sent in clear for SSL 2.0,
3457 and the extra bytes are just ignored. However ssl/s2_pkt.c
3458 failed to verify that the purported number of padding bytes is in
3462 *) Add OpenUNIX-8 support including shared libraries
3463 (Boyd Lynn Gerber <gerberb@zenez.com>).
3466 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
3467 'wristwatch attack' using huge encoding parameters (cf.
3468 James H. Manger's CRYPTO 2001 paper). Note that the
3469 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
3470 encoding parameters and hence was not vulnerable.
3473 *) BN_sqr() bug fix.
3474 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
3476 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
3477 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
3478 followed by modular reduction.
3479 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
3481 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
3482 equivalent based on BN_pseudo_rand() instead of BN_rand().
3485 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
3486 This function was broken, as the check for a new client hello message
3487 to handle SGC did not allow these large messages.
3488 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
3491 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
3494 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
3495 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
3498 *) Rework the configuration and shared library support for Tru64 Unix.
3499 The configuration part makes use of modern compiler features and
3500 still retains old compiler behavior for those that run older versions
3501 of the OS. The shared library support part includes a variant that
3502 uses the RPATH feature, and is available through the special
3503 configuration target "alpha-cc-rpath", which will never be selected
3505 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
3507 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
3508 with the same message size as in ssl3_get_certificate_request().
3509 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
3510 messages might inadvertently be reject as too long.
3511 [Petr Lampa <lampa@fee.vutbr.cz>]
3513 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
3516 *) Modified SSL library such that the verify_callback that has been set
3517 specificly for an SSL object with SSL_set_verify() is actually being
3518 used. Before the change, a verify_callback set with this function was
3519 ignored and the verify_callback() set in the SSL_CTX at the time of
3520 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
3521 to allow the necessary settings.
3524 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
3525 explicitly to NULL, as at least on Solaris 8 this seems not always to be
3526 done automatically (in contradiction to the requirements of the C
3527 standard). This made problems when used from OpenSSH.
3530 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
3531 dh->length and always used
3533 BN_rand_range(priv_key, dh->p).
3535 BN_rand_range() is not necessary for Diffie-Hellman, and this
3536 specific range makes Diffie-Hellman unnecessarily inefficient if
3537 dh->length (recommended exponent length) is much smaller than the
3538 length of dh->p. We could use BN_rand_range() if the order of
3539 the subgroup was stored in the DH structure, but we only have
3544 BN_rand(priv_key, l, ...)
3546 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
3552 RSA_eay_public_encrypt
3553 RSA_eay_private_decrypt
3554 RSA_eay_private_encrypt (signing)
3555 RSA_eay_public_decrypt (signature verification)
3557 (default implementations for RSA_public_encrypt,
3558 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
3559 always reject numbers >= n.
3562 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
3563 to synchronize access to 'locking_thread'. This is necessary on
3564 systems where access to 'locking_thread' (an 'unsigned long'
3565 variable) is not atomic.
3568 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
3569 *before* setting the 'crypto_lock_rand' flag. The previous code had
3570 a race condition if 0 is a valid thread ID.
3571 [Travis Vitek <vitek@roguewave.com>]
3573 *) Add support for shared libraries under Irix.
3574 [Albert Chin-A-Young <china@thewrittenword.com>]
3576 *) Add configuration option to build on Linux on both big-endian and
3578 [Ralf Baechle <ralf@uni-koblenz.de>]
3580 *) Add the possibility to create shared libraries on HP-UX.
3583 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
3585 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
3586 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
3587 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
3588 PRNG state recovery was possible based on the output of
3589 one PRNG request appropriately sized to gain knowledge on
3590 'md' followed by enough consecutive 1-byte PRNG requests
3591 to traverse all of 'state'.
3593 1. When updating 'md_local' (the current thread's copy of 'md')
3594 during PRNG output generation, hash all of the previous
3595 'md_local' value, not just the half used for PRNG output.
3597 2. Make the number of bytes from 'state' included into the hash
3598 independent from the number of PRNG bytes requested.
3600 The first measure alone would be sufficient to avoid
3601 Markku-Juhani's attack. (Actually it had never occurred
3602 to me that the half of 'md_local' used for chaining was the
3603 half from which PRNG output bytes were taken -- I had always
3604 assumed that the secret half would be used.) The second
3605 measure makes sure that additional data from 'state' is never
3606 mixed into 'md_local' in small portions; this heuristically
3607 further strengthens the PRNG.
3610 *) Fix crypto/bn/asm/mips3.s.
3613 *) When only the key is given to "enc", the IV is undefined. Print out
3614 an error message in this case.
3617 *) Handle special case when X509_NAME is empty in X509 printing routines.
3620 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
3621 positive and less than q.
3624 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
3625 used: it isn't thread safe and the add_lock_callback should handle
3627 [Paul Rose <Paul.Rose@bridge.com>]
3629 *) Verify that incoming data obeys the block size in
3630 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
3634 [Ulf Möller, Bodo Möller]
3636 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
3637 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
3638 when fixing the server behaviour for backwards-compatible 'client
3639 hello' messages. (Note that the attack is impractical against
3640 SSL 3.0 and TLS 1.0 anyway because length and version checking
3641 means that the probability of guessing a valid ciphertext is
3642 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
3645 Before 0.9.5, the countermeasure (hide the error by generating a
3646 random 'decryption result') did not work properly because
3647 ERR_clear_error() was missing, meaning that SSL_get_error() would
3648 detect the supposedly ignored error.
3650 Both problems are now fixed.
3653 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
3654 (previously it was 1024).
3657 *) Fix for compatibility mode trust settings: ignore trust settings
3658 unless some valid trust or reject settings are present.
3661 *) Fix for blowfish EVP: its a variable length cipher.
3664 *) Fix various bugs related to DSA S/MIME verification. Handle missing
3665 parameters in DSA public key structures and return an error in the
3666 DSA routines if parameters are absent.
3669 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
3670 in the current directory if neither $RANDFILE nor $HOME was set.
3671 RAND_file_name() in 0.9.6a returned NULL in this case. This has
3672 caused some confusion to Windows users who haven't defined $HOME.
3673 Thus RAND_file_name() is changed again: e_os.h can define a
3674 DEFAULT_HOME, which will be used if $HOME is not set.
3675 For Windows, we use "C:"; on other platforms, we still require
3676 environment variables.
3678 *) Move 'if (!initialized) RAND_poll()' into regions protected by
3679 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
3680 having multiple threads call RAND_poll() concurrently.
3683 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
3684 combination of a flag and a thread ID variable.
3685 Otherwise while one thread is in ssleay_rand_bytes (which sets the
3686 flag), *other* threads can enter ssleay_add_bytes without obeying
3687 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
3688 that they do not hold after the first thread unsets add_do_not_lock).
3691 *) Change bctest again: '-x' expressions are not available in all
3695 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
3697 *) Fix a couple of memory leaks in PKCS7_dataDecode()
3698 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
3700 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
3701 the default extension for executables, if any. Also, make the perl
3702 scripts that use symlink() to test if it really exists and use "cp"
3703 if it doesn't. All this made OpenSSL compilable and installable in
3707 *) Fix for asn1_GetSequence() for indefinite length constructed data.
3708 If SEQUENCE is length is indefinite just set c->slen to the total
3709 amount of data available.
3710 [Steve Henson, reported by shige@FreeBSD.org]
3711 [This change does not apply to 0.9.7.]
3713 *) Change bctest to avoid here-documents inside command substitution
3714 (workaround for FreeBSD /bin/sh bug).
3715 For compatibility with Ultrix, avoid shell functions (introduced
3716 in the bctest version that searches along $PATH).
3719 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
3720 with des_encrypt() defined on some operating systems, like Solaris
3724 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
3725 On the Importance of Eliminating Errors in Cryptographic
3726 Computations, J. Cryptology 14 (2001) 2, 101-119,
3727 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
3730 *) MIPS assembler BIGNUM division bug fix.
3733 *) Disabled incorrect Alpha assembler code.
3736 *) Fix PKCS#7 decode routines so they correctly update the length
3737 after reading an EOC for the EXPLICIT tag.
3739 [This change does not apply to 0.9.7.]
3741 *) Fix bug in PKCS#12 key generation routines. This was triggered
3742 if a 3DES key was generated with a 0 initial byte. Include
3743 PKCS12_BROKEN_KEYGEN compilation option to retain the old
3744 (but broken) behaviour.
3747 *) Enhance bctest to search for a working bc along $PATH and print
3749 [Tim Rice <tim@multitalents.net> via Richard Levitte]
3751 *) Fix memory leaks in err.c: free err_data string if necessary;
3752 don't write to the wrong index in ERR_set_error_data.
3755 *) Implement ssl23_peek (analogous to ssl23_read), which previously
3759 *) Replace rdtsc with _emit statements for VC++ version 5.
3760 [Jeremy Cooper <jeremy@baymoo.org>]
3762 *) Make it possible to reuse SSLv2 sessions.
3765 *) In copy_email() check for >= 0 as a return value for
3766 X509_NAME_get_index_by_NID() since 0 is a valid index.
3767 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
3769 *) Avoid coredump with unsupported or invalid public keys by checking if
3770 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
3771 PKCS7_verify() fails with non detached data.
3774 *) Don't use getenv in library functions when run as setuid/setgid.
3775 New function OPENSSL_issetugid().
3778 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
3779 due to incorrect handling of multi-threading:
3781 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
3783 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
3785 3. Count how many times MemCheck_off() has been called so that
3786 nested use can be treated correctly. This also avoids
3787 inband-signalling in the previous code (which relied on the
3788 assumption that thread ID 0 is impossible).
3791 *) Add "-rand" option also to s_client and s_server.
3794 *) Fix CPU detection on Irix 6.x.
3795 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
3796 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
3798 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
3801 [This change does not apply to 0.9.7.]
3803 *) Use the cached encoding of an X509_NAME structure rather than
3804 copying it. This is apparently the reason for the libsafe "errors"
3805 but the code is actually correct.
3808 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
3809 Bleichenbacher's DSA attack.
3810 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
3811 to be set and top=0 forces the highest bit to be set; top=-1 is new
3812 and leaves the highest bit random.
3813 [Ulf Moeller, Bodo Moeller]
3815 *) In the NCONF_...-based implementations for CONF_... queries
3816 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
3817 a temporary CONF structure with the data component set to NULL
3818 (which gives segmentation faults in lh_retrieve).
3819 Instead, use NULL for the CONF pointer in CONF_get_string and
3820 CONF_get_number (which may use environment variables) and directly
3821 return NULL from CONF_get_section.
3824 *) Fix potential buffer overrun for EBCDIC.
3827 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
3828 keyUsage if basicConstraints absent for a CA.
3831 *) Make SMIME_write_PKCS7() write mail header values with a format that
3832 is more generally accepted (no spaces before the semicolon), since
3833 some programs can't parse those values properly otherwise. Also make
3834 sure BIO's that break lines after each write do not create invalid
3838 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
3839 macros previously used would not encode an empty SEQUENCE OF
3840 and break the signature.
3842 [This change does not apply to 0.9.7.]
3844 *) Zero the premaster secret after deriving the master secret in
3848 *) Add some EVP_add_digest_alias registrations (as found in
3849 OpenSSL_add_all_digests()) to SSL_library_init()
3850 aka OpenSSL_add_ssl_algorithms(). This provides improved
3851 compatibility with peers using X.509 certificates
3852 with unconventional AlgorithmIdentifier OIDs.
3855 *) Fix for Irix with NO_ASM.
3856 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
3858 *) ./config script fixes.
3859 [Ulf Moeller, Richard Levitte]
3861 *) Fix 'openssl passwd -1'.
3864 *) Change PKCS12_key_gen_asc() so it can cope with non null
3865 terminated strings whose length is passed in the passlen
3866 parameter, for example from PEM callbacks. This was done
3867 by adding an extra length parameter to asc2uni().
3868 [Steve Henson, reported by <oddissey@samsung.co.kr>]
3870 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
3871 call failed, free the DSA structure.
3874 *) Fix to uni2asc() to cope with zero length Unicode strings.
3875 These are present in some PKCS#12 files.
3878 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
3879 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
3880 when writing a 32767 byte record.
3881 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
3883 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
3884 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
3886 (RSA objects have a reference count access to which is protected
3887 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
3888 so they are meant to be shared between threads.)
3889 [Bodo Moeller, Geoff Thorpe; original patch submitted by
3890 "Reddie, Steven" <Steven.Reddie@ca.com>]
3892 *) Fix a deadlock in CRYPTO_mem_leaks().
3895 *) Use better test patterns in bntest.
3898 *) rand_win.c fix for Borland C.
3901 *) BN_rshift bugfix for n == 0.
3904 *) Add a 'bctest' script that checks for some known 'bc' bugs
3905 so that 'make test' does not abort just because 'bc' is broken.
3908 *) Store verify_result within SSL_SESSION also for client side to
3909 avoid potential security hole. (Re-used sessions on the client side
3910 always resulted in verify_result==X509_V_OK, not using the original
3911 result of the server certificate verification.)
3914 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
3915 SSL3_RT_APPLICATION_DATA, return 0.
3916 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
3920 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
3921 releases, have been re-implemented by renaming the previous
3922 implementations of ssl2_read and ssl3_read to ssl2_read_internal
3923 and ssl3_read_internal, respectively, and adding 'peek' parameters
3924 to them. The new ssl[23]_{read,peek} functions are calls to
3925 ssl[23]_read_internal with the 'peek' flag set appropriately.
3926 A 'peek' parameter has also been added to ssl3_read_bytes, which
3927 does the actual work for ssl3_read_internal.
3930 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
3931 the method-specific "init()" handler. Also clean up ex_data after
3932 calling the method-specific "finish()" handler. Previously, this was
3933 happening the other way round.
3936 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
3937 The previous value, 12, was not always sufficient for BN_mod_exp().
3940 *) Make sure that shared libraries get the internal name engine with
3941 the full version number and not just 0. This should mark the
3942 shared libraries as not backward compatible. Of course, this should
3943 be changed again when we can guarantee backward binary compatibility.
3946 *) Fix typo in get_cert_by_subject() in by_dir.c
3947 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
3949 *) Rework the system to generate shared libraries:
3951 - Make note of the expected extension for the shared libraries and
3952 if there is a need for symbolic links from for example libcrypto.so.0
3953 to libcrypto.so.0.9.7. There is extended info in Configure for
3956 - Make as few rebuilds of the shared libraries as possible.
3958 - Still avoid linking the OpenSSL programs with the shared libraries.
3960 - When installing, install the shared libraries separately from the
3964 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
3966 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
3967 and not in SSL_clear because the latter is also used by the
3968 accept/connect functions; previously, the settings made by
3969 SSL_set_read_ahead would be lost during the handshake.
3970 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
3972 *) Correct util/mkdef.pl to be selective about disabled algorithms.
3973 Previously, it would create entries for disableed algorithms no
3977 *) Added several new manual pages for SSL_* function.
3980 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
3982 *) In ssl23_get_client_hello, generate an error message when faced
3983 with an initial SSL 3.0/TLS record that is too small to contain the
3984 first two bytes of the ClientHello message, i.e. client_version.
3985 (Note that this is a pathologic case that probably has never happened
3986 in real life.) The previous approach was to use the version number
3987 from the record header as a substitute; but our protocol choice
3988 should not depend on that one because it is not authenticated
3989 by the Finished messages.
3992 *) More robust randomness gathering functions for Windows.
3993 [Jeffrey Altman <jaltman@columbia.edu>]
3995 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
3996 not set then we don't setup the error code for issuer check errors
3997 to avoid possibly overwriting other errors which the callback does
3998 handle. If an application does set the flag then we assume it knows
3999 what it is doing and can handle the new informational codes
4003 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
4004 a general "ANY" type, as such it should be able to decode anything
4005 including tagged types. However it didn't check the class so it would
4006 wrongly interpret tagged types in the same way as their universal
4007 counterpart and unknown types were just rejected. Changed so that the
4008 tagged and unknown types are handled in the same way as a SEQUENCE:
4009 that is the encoding is stored intact. There is also a new type
4010 "V_ASN1_OTHER" which is used when the class is not universal, in this
4011 case we have no idea what the actual type is so we just lump them all
4015 *) On VMS, stdout may very well lead to a file that is written to
4016 in a record-oriented fashion. That means that every write() will
4017 write a separate record, which will be read separately by the
4018 programs trying to read from it. This can be very confusing.
4020 The solution is to put a BIO filter in the way that will buffer
4021 text until a linefeed is reached, and then write everything a
4022 line at a time, so every record written will be an actual line,
4023 not chunks of lines and not (usually doesn't happen, but I've
4024 seen it once) several lines in one record. BIO_f_linebuffer() is
4027 Currently, it's a VMS-only method, because that's where it has
4028 been tested well enough.
4031 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
4032 it can return incorrect results.
4033 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
4034 but it was in 0.9.6-beta[12].)
4037 *) Disable the check for content being present when verifying detached
4038 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
4039 include zero length content when signing messages.
4042 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
4043 BIO_ctrl (for BIO pairs).
4046 *) Add DSO method for VMS.
4049 *) Bug fix: Montgomery multiplication could produce results with the
4053 *) Add RPM specification openssl.spec and modify it to build three
4054 packages. The default package contains applications, application
4055 documentation and run-time libraries. The devel package contains
4056 include files, static libraries and function documentation. The
4057 doc package contains the contents of the doc directory. The original
4058 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
4061 *) Add a large number of documentation files for many SSL routines.
4062 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
4064 *) Add a configuration entry for Sony News 4.
4065 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
4067 *) Don't set the two most significant bits to one when generating a
4068 random number < q in the DSA library.
4071 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
4072 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
4073 the underlying transport is blocking) if a handshake took place.
4074 (The default behaviour is needed by applications such as s_client
4075 and s_server that use select() to determine when to use SSL_read;
4076 but for applications that know in advance when to expect data, it
4077 just makes things more complicated.)
4080 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
4084 *) Add a few more EBCDIC conditionals that make `req' and `x509'
4085 work better on such systems.
4086 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
4088 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
4089 Update PKCS12_parse() so it copies the friendlyName and the
4090 keyid to the certificates aux info.
4093 *) Fix bug in PKCS7_verify() which caused an infinite loop
4094 if there was more than one signature.
4095 [Sven Uszpelkat <su@celocom.de>]
4097 *) Major change in util/mkdef.pl to include extra information
4098 about each symbol, as well as presentig variables as well
4099 as functions. This change means that there's n more need
4100 to rebuild the .num files when some algorithms are excluded.
4103 *) Allow the verify time to be set by an application,
4104 rather than always using the current time.
4107 *) Phase 2 verify code reorganisation. The certificate
4108 verify code now looks up an issuer certificate by a
4109 number of criteria: subject name, authority key id
4110 and key usage. It also verifies self signed certificates
4111 by the same criteria. The main comparison function is
4112 X509_check_issued() which performs these checks.
4114 Lot of changes were necessary in order to support this
4115 without completely rewriting the lookup code.
4117 Authority and subject key identifier are now cached.
4119 The LHASH 'certs' is X509_STORE has now been replaced
4120 by a STACK_OF(X509_OBJECT). This is mainly because an
4121 LHASH can't store or retrieve multiple objects with
4122 the same hash value.
4124 As a result various functions (which were all internal
4125 use only) have changed to handle the new X509_STORE
4126 structure. This will break anything that messed round
4127 with X509_STORE internally.
4129 The functions X509_STORE_add_cert() now checks for an
4130 exact match, rather than just subject name.
4132 The X509_STORE API doesn't directly support the retrieval
4133 of multiple certificates matching a given criteria, however
4134 this can be worked round by performing a lookup first
4135 (which will fill the cache with candidate certificates)
4136 and then examining the cache for matches. This is probably
4137 the best we can do without throwing out X509_LOOKUP
4138 entirely (maybe later...).
4140 The X509_VERIFY_CTX structure has been enhanced considerably.
4142 All certificate lookup operations now go via a get_issuer()
4143 callback. Although this currently uses an X509_STORE it
4144 can be replaced by custom lookups. This is a simple way
4145 to bypass the X509_STORE hackery necessary to make this
4146 work and makes it possible to use more efficient techniques
4147 in future. A very simple version which uses a simple
4148 STACK for its trusted certificate store is also provided
4149 using X509_STORE_CTX_trusted_stack().
4151 The verify_cb() and verify() callbacks now have equivalents
4152 in the X509_STORE_CTX structure.
4154 X509_STORE_CTX also has a 'flags' field which can be used
4155 to customise the verify behaviour.
4158 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
4159 excludes S/MIME capabilities.
4162 *) When a certificate request is read in keep a copy of the
4163 original encoding of the signed data and use it when outputing
4164 again. Signatures then use the original encoding rather than
4165 a decoded, encoded version which may cause problems if the
4166 request is improperly encoded.
4169 *) For consistency with other BIO_puts implementations, call
4170 buffer_write(b, ...) directly in buffer_puts instead of calling
4173 In BIO_puts, increment b->num_write as in BIO_write.
4174 [Peter.Sylvester@EdelWeb.fr]
4176 *) Fix BN_mul_word for the case where the word is 0. (We have to use
4177 BN_zero, we may not return a BIGNUM with an array consisting of
4181 *) Avoid calling abort() from within the library when problems are
4182 detected, except if preprocessor symbols have been defined
4183 (such as REF_CHECK, BN_DEBUG etc.).
4186 *) New openssl application 'rsautl'. This utility can be
4187 used for low level RSA operations. DER public key
4188 BIO/fp routines also added.
4191 *) New Configure entry and patches for compiling on QNX 4.
4192 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
4194 *) A demo state-machine implementation was sponsored by
4195 Nuron (http://www.nuron.com/) and is now available in
4196 demos/state_machine.
4199 *) New options added to the 'dgst' utility for signature
4200 generation and verification.
4203 *) Unrecognized PKCS#7 content types are now handled via a
4204 catch all ASN1_TYPE structure. This allows unsupported
4205 types to be stored as a "blob" and an application can
4206 encode and decode it manually.
4209 *) Fix various signed/unsigned issues to make a_strex.c
4211 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
4213 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
4214 length if passed a buffer. ASN1_INTEGER_to_BN failed
4215 if passed a NULL BN and its argument was negative.
4216 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
4218 *) Modification to PKCS#7 encoding routines to output definite
4219 length encoding. Since currently the whole structures are in
4220 memory there's not real point in using indefinite length
4221 constructed encoding. However if OpenSSL is compiled with
4222 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
4225 *) Added BIO_vprintf() and BIO_vsnprintf().
4228 *) Added more prefixes to parse for in the the strings written
4229 through a logging bio, to cover all the levels that are available
4230 through syslog. The prefixes are now:
4232 PANIC, EMERG, EMR => LOG_EMERG
4233 ALERT, ALR => LOG_ALERT
4234 CRIT, CRI => LOG_CRIT
4235 ERROR, ERR => LOG_ERR
4236 WARNING, WARN, WAR => LOG_WARNING
4237 NOTICE, NOTE, NOT => LOG_NOTICE
4238 INFO, INF => LOG_INFO
4239 DEBUG, DBG => LOG_DEBUG
4241 and as before, if none of those prefixes are present at the
4242 beginning of the string, LOG_ERR is chosen.
4244 On Win32, the LOG_* levels are mapped according to this:
4246 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
4247 LOG_WARNING => EVENTLOG_WARNING_TYPE
4248 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
4252 *) Made it possible to reconfigure with just the configuration
4253 argument "reconf" or "reconfigure". The command line arguments
4254 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
4255 and are retrieved from there when reconfiguring.
4259 [Assar Westerlund <assar@sics.se>, Richard Levitte]
4261 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
4264 *) The obj_dat.pl script was messing up the sorting of object
4265 names. The reason was that it compared the quoted version
4266 of strings as a result "OCSP" > "OCSP Signing" because
4267 " > SPACE. Changed script to store unquoted versions of
4268 names and add quotes on output. It was also omitting some
4269 names from the lookup table if they were given a default
4270 value (that is if SN is missing it is given the same
4271 value as LN and vice versa), these are now added on the
4272 grounds that if an object has a name we should be able to
4273 look it up. Finally added warning output when duplicate
4274 short or long names are found.
4277 *) Changes needed for Tandem NSK.
4278 [Scott Uroff <scott@xypro.com>]
4280 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
4281 RSA_padding_check_SSLv23(), special padding was never detected
4282 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
4283 version rollback attacks was not effective.
4285 In s23_clnt.c, don't use special rollback-attack detection padding
4286 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
4287 client; similarly, in s23_srvr.c, don't do the rollback check if
4288 SSL 2.0 is the only protocol enabled in the server.
4291 *) Make it possible to get hexdumps of unprintable data with 'openssl
4292 asn1parse'. By implication, the functions ASN1_parse_dump() and
4293 BIO_dump_indent() are added.
4296 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
4297 these print out strings and name structures based on various
4298 flags including RFC2253 support and proper handling of
4299 multibyte characters. Added options to the 'x509' utility
4300 to allow the various flags to be set.
4303 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
4304 Also change the functions X509_cmp_current_time() and
4305 X509_gmtime_adj() work with an ASN1_TIME structure,
4306 this will enable certificates using GeneralizedTime in validity
4307 dates to be checked.
4310 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
4311 negative public key encodings) on by default,
4312 NO_NEG_PUBKEY_BUG can be set to disable it.
4315 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
4316 content octets. An i2c_ASN1_OBJECT is unnecessary because
4317 the encoding can be trivially obtained from the structure.
4320 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
4321 not read locks (CRYPTO_r_[un]lock).
4324 *) A first attempt at creating official support for shared
4325 libraries through configuration. I've kept it so the
4326 default is static libraries only, and the OpenSSL programs
4327 are always statically linked for now, but there are
4328 preparations for dynamic linking in place.
4329 This has been tested on Linux and Tru64.
4332 *) Randomness polling function for Win9x, as described in:
4333 Peter Gutmann, Software Generation of Practically Strong
4337 *) Fix so PRNG is seeded in req if using an already existing
4341 *) New options to smime application. -inform and -outform
4342 allow alternative formats for the S/MIME message including
4343 PEM and DER. The -content option allows the content to be
4344 specified separately. This should allow things like Netscape
4345 form signing output easier to verify.
4348 *) Fix the ASN1 encoding of tags using the 'long form'.
4351 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
4352 STRING types. These convert content octets to and from the
4353 underlying type. The actual tag and length octets are
4354 already assumed to have been read in and checked. These
4355 are needed because all other string types have virtually
4356 identical handling apart from the tag. By having versions
4357 of the ASN1 functions that just operate on content octets
4358 IMPLICIT tagging can be handled properly. It also allows
4359 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
4360 and ASN1_INTEGER are identical apart from the tag.
4363 *) Change the handling of OID objects as follows:
4365 - New object identifiers are inserted in objects.txt, following
4366 the syntax given in objects.README.
4367 - objects.pl is used to process obj_mac.num and create a new
4369 - obj_dat.pl is used to create a new obj_dat.h, using the data in
4372 This is currently kind of a hack, and the perl code in objects.pl
4373 isn't very elegant, but it works as I intended. The simplest way
4374 to check that it worked correctly is to look in obj_dat.h and
4375 check the array nid_objs and make sure the objects haven't moved
4376 around (this is important!). Additions are OK, as well as
4377 consistent name changes.
4380 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
4383 *) Addition of the command line parameter '-rand file' to 'openssl req'.
4384 The given file adds to whatever has already been seeded into the
4385 random pool through the RANDFILE configuration file option or
4386 environment variable, or the default random state file.
4389 *) mkstack.pl now sorts each macro group into lexical order.
4390 Previously the output order depended on the order the files
4391 appeared in the directory, resulting in needless rewriting
4395 *) Patches to make OpenSSL compile under Win32 again. Mostly
4396 work arounds for the VC++ problem that it treats func() as
4397 func(void). Also stripped out the parts of mkdef.pl that
4398 added extra typesafe functions: these no longer exist.
4401 *) Reorganisation of the stack code. The macros are now all
4402 collected in safestack.h . Each macro is defined in terms of
4403 a "stack macro" of the form SKM_<name>(type, a, b). The
4404 DEBUG_SAFESTACK is now handled in terms of function casts,
4405 this has the advantage of retaining type safety without the
4406 use of additional functions. If DEBUG_SAFESTACK is not defined
4407 then the non typesafe macros are used instead. Also modified the
4408 mkstack.pl script to handle the new form. Needs testing to see
4409 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
4410 the default if no major problems. Similar behaviour for ASN1_SET_OF
4411 and PKCS12_STACK_OF.
4414 *) When some versions of IIS use the 'NET' form of private key the
4415 key derivation algorithm is different. Normally MD5(password) is
4416 used as a 128 bit RC4 key. In the modified case
4417 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
4418 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
4419 as the old Netscape_RSA functions except they have an additional
4420 'sgckey' parameter which uses the modified algorithm. Also added
4421 an -sgckey command line option to the rsa utility. Thanks to
4422 Adrian Peck <bertie@ncipher.com> for posting details of the modified
4423 algorithm to openssl-dev.
4426 *) The evp_local.h macros were using 'c.##kname' which resulted in
4427 invalid expansion on some systems (SCO 5.0.5 for example).
4428 Corrected to 'c.kname'.
4429 [Phillip Porch <root@theporch.com>]
4431 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
4432 a STACK of email addresses from a certificate or request, these look
4433 in the subject name and the subject alternative name extensions and
4434 omit any duplicate addresses.
4437 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
4438 This makes DSA verification about 2 % faster.
4441 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
4442 (meaning that now 2^5 values will be precomputed, which is only 4 KB
4443 plus overhead for 1024 bit moduli).
4444 This makes exponentiations about 0.5 % faster for 1024 bit
4445 exponents (as measured by "openssl speed rsa2048").
4448 *) Rename memory handling macros to avoid conflicts with other
4450 Malloc => OPENSSL_malloc
4451 Malloc_locked => OPENSSL_malloc_locked
4452 Realloc => OPENSSL_realloc
4453 Free => OPENSSL_free
4456 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
4457 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
4460 *) CygWin32 support.
4461 [John Jarvie <jjarvie@newsguy.com>]
4463 *) The type-safe stack code has been rejigged. It is now only compiled
4464 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
4465 by default all type-specific stack functions are "#define"d back to
4466 standard stack functions. This results in more streamlined output
4467 but retains the type-safety checking possibilities of the original
4471 *) The STACK code has been cleaned up, and certain type declarations
4472 that didn't make a lot of sense have been brought in line. This has
4473 also involved a cleanup of sorts in safestack.h to more correctly
4474 map type-safe stack functions onto their plain stack counterparts.
4475 This work has also resulted in a variety of "const"ifications of
4476 lots of the code, especially "_cmp" operations which should normally
4477 be prototyped with "const" parameters anyway.
4480 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
4481 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
4482 (The PRNG state consists of two parts, the large pool 'state' and 'md',
4483 where all of 'md' is used each time the PRNG is used, but 'state'
4484 is used only indexed by a cyclic counter. As entropy may not be
4485 well distributed from the beginning, 'md' is important as a
4486 chaining variable. However, the output function chains only half
4487 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
4488 all of 'md', and seeding with STATE_SIZE dummy bytes will result
4489 in all of 'state' being rewritten, with the new values depending
4490 on virtually all of 'md'. This overcomes the 80 bit limitation.)
4493 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
4494 the handshake is continued after ssl_verify_cert_chain();
4495 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
4496 can lead to 'unexplainable' connection aborts later.
4497 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
4499 *) Major EVP API cipher revision.
4500 Add hooks for extra EVP features. This allows various cipher
4501 parameters to be set in the EVP interface. Support added for variable
4502 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
4503 setting of RC2 and RC5 parameters.
4505 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
4508 Remove lots of duplicated code from the EVP library. For example *every*
4509 cipher init() function handles the 'iv' in the same way according to the
4510 cipher mode. They also all do nothing if the 'key' parameter is NULL and
4511 for CFB and OFB modes they zero ctx->num.
4513 New functionality allows removal of S/MIME code RC2 hack.
4515 Most of the routines have the same form and so can be declared in terms
4518 By shifting this to the top level EVP_CipherInit() it can be removed from
4519 all individual ciphers. If the cipher wants to handle IVs or keys
4520 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
4523 Change lots of functions like EVP_EncryptUpdate() to now return a
4524 value: although software versions of the algorithms cannot fail
4525 any installed hardware versions can.
4528 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
4529 this option is set, tolerate broken clients that send the negotiated
4530 protocol version number instead of the requested protocol version
4534 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
4535 i.e. non-zero for export ciphersuites, zero otherwise.
4536 Previous versions had this flag inverted, inconsistent with
4537 rsa_tmp_cb (..._TMP_RSA_CB).
4538 [Bodo Moeller; problem reported by Amit Chopra]
4540 *) Add missing DSA library text string. Work around for some IIS
4541 key files with invalid SEQUENCE encoding.
4544 *) Add a document (doc/standards.txt) that list all kinds of standards
4545 and so on that are implemented in OpenSSL.
4548 *) Enhance c_rehash script. Old version would mishandle certificates
4549 with the same subject name hash and wouldn't handle CRLs at all.
4550 Added -fingerprint option to crl utility, to support new c_rehash
4554 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
4557 *) Fix for SSL server purpose checking. Server checking was
4558 rejecting certificates which had extended key usage present
4559 but no ssl client purpose.
4560 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
4562 *) Make PKCS#12 code work with no password. The PKCS#12 spec
4563 is a little unclear about how a blank password is handled.
4564 Since the password in encoded as a BMPString with terminating
4565 double NULL a zero length password would end up as just the
4566 double NULL. However no password at all is different and is
4567 handled differently in the PKCS#12 key generation code. NS
4568 treats a blank password as zero length. MSIE treats it as no
4569 password on export: but it will try both on import. We now do
4570 the same: PKCS12_parse() tries zero length and no password if
4571 the password is set to "" or NULL (NULL is now a valid password:
4572 it wasn't before) as does the pkcs12 application.
4575 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
4576 perror when PEM_read_bio_X509_REQ fails, the error message must
4577 be obtained from the error queue.
4580 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
4581 it in ERR_remove_state if appropriate, and change ERR_get_state
4582 accordingly to avoid race conditions (this is necessary because
4583 thread_hash is no longer constant once set).
4586 *) Bugfix for linux-elf makefile.one.
4589 *) RSA_get_default_method() will now cause a default
4590 RSA_METHOD to be chosen if one doesn't exist already.
4591 Previously this was only set during a call to RSA_new()
4592 or RSA_new_method(NULL) meaning it was possible for
4593 RSA_get_default_method() to return NULL.
4596 *) Added native name translation to the existing DSO code
4597 that will convert (if the flag to do so is set) filenames
4598 that are sufficiently small and have no path information
4599 into a canonical native form. Eg. "blah" converted to
4600 "libblah.so" or "blah.dll" etc.
4603 *) New function ERR_error_string_n(e, buf, len) which is like
4604 ERR_error_string(e, buf), but writes at most 'len' bytes
4605 including the 0 terminator. For ERR_error_string_n, 'buf'
4607 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
4609 *) CONF library reworked to become more general. A new CONF
4610 configuration file reader "class" is implemented as well as a
4611 new functions (NCONF_*, for "New CONF") to handle it. The now
4612 old CONF_* functions are still there, but are reimplemented to
4613 work in terms of the new functions. Also, a set of functions
4614 to handle the internal storage of the configuration data is
4615 provided to make it easier to write new configuration file
4616 reader "classes" (I can definitely see something reading a
4617 configuration file in XML format, for example), called _CONF_*,
4618 or "the configuration storage API"...
4620 The new configuration file reading functions are:
4622 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
4623 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
4625 NCONF_default, NCONF_WIN32
4627 NCONF_dump_fp, NCONF_dump_bio
4629 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
4630 NCONF_new creates a new CONF object. This works in the same way
4631 as other interfaces in OpenSSL, like the BIO interface.
4632 NCONF_dump_* dump the internal storage of the configuration file,
4633 which is useful for debugging. All other functions take the same
4634 arguments as the old CONF_* functions wth the exception of the
4635 first that must be a `CONF *' instead of a `LHASH *'.
4637 To make it easer to use the new classes with the old CONF_* functions,
4638 the function CONF_set_default_method is provided.
4641 *) Add '-tls1' option to 'openssl ciphers', which was already
4642 mentioned in the documentation but had not been implemented.
4643 (This option is not yet really useful because even the additional
4644 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
4647 *) Initial DSO code added into libcrypto for letting OpenSSL (and
4648 OpenSSL-based applications) load shared libraries and bind to
4649 them in a portable way.
4650 [Geoff Thorpe, with contributions from Richard Levitte]
4652 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
4654 *) Make sure _lrotl and _lrotr are only used with MSVC.
4656 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
4657 (the default implementation of RAND_status).
4659 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
4660 to '-clrext' (= clear extensions), as intended and documented.
4661 [Bodo Moeller; inconsistency pointed out by Michael Attili
4664 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
4665 was larger than the MD block size.
4666 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
4668 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
4669 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
4670 using the passed key: if the passed key was a private key the result
4671 of X509_print(), for example, would be to print out all the private key
4675 *) des_quad_cksum() byte order bug fix.
4676 [Ulf Möller, using the problem description in krb4-0.9.7, where
4677 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
4679 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
4681 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
4683 *) For easily testing in shell scripts whether some command
4684 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
4685 returns with exit code 0 iff no command of the given name is available.
4686 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
4687 the output goes to stdout and nothing is printed to stderr.
4688 Additional arguments are always ignored.
4690 Since for each cipher there is a command of the same name,
4691 the 'no-cipher' compilation switches can be tested this way.
4693 ('openssl no-XXX' is not able to detect pseudo-commands such
4694 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
4697 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
4700 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
4701 is set; it will be thrown away anyway because each handshake creates
4703 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
4704 to parameters -- in previous versions (since OpenSSL 0.9.3) the
4705 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
4706 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
4709 *) New s_client option -ign_eof: EOF at stdin is ignored, and
4710 'Q' and 'R' lose their special meanings (quit/renegotiate).
4711 This is part of what -quiet does; unlike -quiet, -ign_eof
4712 does not suppress any output.
4715 *) Add compatibility options to the purpose and trust code. The
4716 purpose X509_PURPOSE_ANY is "any purpose" which automatically
4717 accepts a certificate or CA, this was the previous behaviour,
4718 with all the associated security issues.
4720 X509_TRUST_COMPAT is the old trust behaviour: only and
4721 automatically trust self signed roots in certificate store. A
4722 new trust setting X509_TRUST_DEFAULT is used to specify that
4723 a purpose has no associated trust setting and it should instead
4724 use the value in the default purpose.
4727 *) Fix the PKCS#8 DSA private key code so it decodes keys again
4728 and fix a memory leak.
4731 *) In util/mkerr.pl (which implements 'make errors'), preserve
4732 reason strings from the previous version of the .c file, as
4733 the default to have only downcase letters (and digits) in
4734 automatically generated reasons codes is not always appropriate.
4737 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
4738 using strerror. Previously, ERR_reason_error_string() returned
4739 library names as reason strings for SYSerr; but SYSerr is a special
4740 case where small numbers are errno values, not library numbers.
4743 *) Add '-dsaparam' option to 'openssl dhparam' application. This
4744 converts DSA parameters into DH parameters. (When creating parameters,
4745 DSA_generate_parameters is used.)
4748 *) Include 'length' (recommended exponent length) in C code generated
4749 by 'openssl dhparam -C'.
4752 *) The second argument to set_label in perlasm was already being used
4753 so couldn't be used as a "file scope" flag. Moved to third argument
4757 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
4758 instead of RAND_bytes for encryption IVs and salts.
4761 *) Include RAND_status() into RAND_METHOD instead of implementing
4762 it only for md_rand.c Otherwise replacing the PRNG by calling
4763 RAND_set_rand_method would be impossible.
4766 *) Don't let DSA_generate_key() enter an infinite loop if the random
4767 number generation fails.
4770 *) New 'rand' application for creating pseudo-random output.
4773 *) Added configuration support for Linux/IA64
4774 [Rolf Haberrecker <rolf@suse.de>]
4776 *) Assembler module support for Mingw32.
4779 *) Shared library support for HPUX (in shlib/).
4780 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
4782 *) Shared library support for Solaris gcc.
4783 [Lutz Behnke <behnke@trustcenter.de>]
4785 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
4787 *) PKCS7_encrypt() was adding text MIME headers twice because they
4788 were added manually and by SMIME_crlf_copy().
4791 *) In bntest.c don't call BN_rand with zero bits argument.
4792 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
4794 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
4795 case was implemented. This caused BN_div_recp() to fail occasionally.
4798 *) Add an optional second argument to the set_label() in the perl
4799 assembly language builder. If this argument exists and is set
4800 to 1 it signals that the assembler should use a symbol whose
4801 scope is the entire file, not just the current function. This
4802 is needed with MASM which uses the format label:: for this scope.
4803 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
4805 *) Change the ASN1 types so they are typedefs by default. Before
4806 almost all types were #define'd to ASN1_STRING which was causing
4807 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
4811 *) Change names of new functions to the new get1/get0 naming
4812 convention: After 'get1', the caller owns a reference count
4813 and has to call ..._free; 'get0' returns a pointer to some
4814 data structure without incrementing reference counters.
4815 (Some of the existing 'get' functions increment a reference
4816 counter, some don't.)
4817 Similarly, 'set1' and 'add1' functions increase reference
4818 counters or duplicate objects.
4821 *) Allow for the possibility of temp RSA key generation failure:
4822 the code used to assume it always worked and crashed on failure.
4825 *) Fix potential buffer overrun problem in BIO_printf().
4826 [Ulf Möller, using public domain code by Patrick Powell; problem
4827 pointed out by David Sacerdote <das33@cornell.edu>]
4829 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
4830 RAND_egd() and RAND_status(). In the command line application,
4831 the EGD socket can be specified like a seed file using RANDFILE
4835 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
4836 Some CAs (e.g. Verisign) distribute certificates in this form.
4839 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
4840 list to exclude them. This means that no special compilation option
4841 is needed to use anonymous DH: it just needs to be included in the
4845 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
4846 EVP_MD_type. The old functionality is available in a new macro called
4847 EVP_MD_md(). Change code that uses it and update docs.
4850 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
4851 where the 'void *' argument is replaced by a function pointer argument.
4852 Previously 'void *' was abused to point to functions, which works on
4853 many platforms, but is not correct. As these functions are usually
4854 called by macros defined in OpenSSL header files, most source code
4855 should work without changes.
4858 *) <openssl/opensslconf.h> (which is created by Configure) now contains
4859 sections with information on -D... compiler switches used for
4860 compiling the library so that applications can see them. To enable
4861 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
4862 must be defined. E.g.,
4863 #define OPENSSL_ALGORITHM_DEFINES
4864 #include <openssl/opensslconf.h>
4865 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
4866 [Richard Levitte, Ulf and Bodo Möller]
4868 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
4872 *) Change the 'other' type in certificate aux info to a STACK_OF
4873 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
4874 the required ASN1 format: arbitrary types determined by an OID.
4877 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
4878 argument to 'req'. This is not because the function is newer or
4879 better than others it just uses the work 'NEW' in the certificate
4880 request header lines. Some software needs this.
4883 *) Reorganise password command line arguments: now passwords can be
4884 obtained from various sources. Delete the PEM_cb function and make
4885 it the default behaviour: i.e. if the callback is NULL and the
4886 usrdata argument is not NULL interpret it as a null terminated pass
4887 phrase. If usrdata and the callback are NULL then the pass phrase
4888 is prompted for as usual.
4891 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
4892 the support is automatically enabled. The resulting binaries will
4893 autodetect the card and use it if present.
4894 [Ben Laurie and Compaq Inc.]
4896 *) Work around for Netscape hang bug. This sends certificate request
4897 and server done in one record. Since this is perfectly legal in the
4898 SSL/TLS protocol it isn't a "bug" option and is on by default. See
4899 the bugs/SSLv3 entry for more info.
4902 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
4905 *) Add -rand argument to smime and pkcs12 applications and read/write
4909 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
4912 *) Add command line password options to the remaining applications.
4915 *) Bug fix for BN_div_recp() for numerators with an even number of
4919 *) More tests in bntest.c, and changed test_bn output.
4922 *) ./config recognizes MacOS X now.
4925 *) Bug fix for BN_div() when the first words of num and divsor are
4926 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
4929 *) Add support for various broken PKCS#8 formats, and command line
4930 options to produce them.
4933 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
4934 get temporary BIGNUMs from a BN_CTX.
4937 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
4941 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
4942 include a #define from the old name to the new. The original intent
4943 was that statically linked binaries could for example just call
4944 SSLeay_add_all_ciphers() to just add ciphers to the table and not
4945 link with digests. This never worked becayse SSLeay_add_all_digests()
4946 and SSLeay_add_all_ciphers() were in the same source file so calling
4947 one would link with the other. They are now in separate source files.
4950 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
4953 *) Use a less unusual form of the Miller-Rabin primality test (it used
4954 a binary algorithm for exponentiation integrated into the Miller-Rabin
4955 loop, our standard modexp algorithms are faster).
4958 *) Support for the EBCDIC character set completed.
4959 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
4961 *) Source code cleanups: use const where appropriate, eliminate casts,
4962 use void * instead of char * in lhash.
4965 *) Bugfix: ssl3_send_server_key_exchange was not restartable
4966 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
4967 this the server could overwrite ephemeral keys that the client
4971 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
4972 using 50 iterations of the Rabin-Miller test.
4974 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
4975 iterations of the Rabin-Miller test as required by the appendix
4976 to FIPS PUB 186[-1]) instead of DSA_is_prime.
4977 As BN_is_prime_fasttest includes trial division, DSA parameter
4978 generation becomes much faster.
4980 This implies a change for the callback functions in DSA_is_prime
4981 and DSA_generate_parameters: The callback function is called once
4982 for each positive witness in the Rabin-Miller test, not just
4983 occasionally in the inner loop; and the parameters to the
4984 callback function now provide an iteration count for the outer
4985 loop rather than for the current invocation of the inner loop.
4986 DSA_generate_parameters additionally can call the callback
4987 function with an 'iteration count' of -1, meaning that a
4988 candidate has passed the trial division test (when q is generated
4989 from an application-provided seed, trial division is skipped).
4992 *) New function BN_is_prime_fasttest that optionally does trial
4993 division before starting the Rabin-Miller test and has
4994 an additional BN_CTX * argument (whereas BN_is_prime always
4995 has to allocate at least one BN_CTX).
4996 'callback(1, -1, cb_arg)' is called when a number has passed the
4997 trial division stage.
5000 *) Fix for bug in CRL encoding. The validity dates weren't being handled
5004 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
5007 *) New function BN_pseudo_rand().
5010 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
5011 bignum version of BN_from_montgomery() with the working code from
5012 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
5016 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
5017 made it impossible to use the same SSL_SESSION data structure in
5018 SSL2 clients in multiple threads.
5021 *) The return value of RAND_load_file() no longer counts bytes obtained
5022 by stat(). RAND_load_file(..., -1) is new and uses the complete file
5023 to seed the PRNG (previously an explicit byte count was required).
5024 [Ulf Möller, Bodo Möller]
5026 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
5027 used (char *) instead of (void *) and had casts all over the place.
5030 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
5033 *) Retain source code compatibility for BN_prime_checks macro:
5034 BN_is_prime(..., BN_prime_checks, ...) now uses
5035 BN_prime_checks_for_size to determine the appropriate number of
5036 Rabin-Miller iterations.
5039 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
5040 DH_CHECK_P_NOT_SAFE_PRIME.
5041 (Check if this is true? OpenPGP calls them "strong".)
5044 *) Merge the functionality of "dh" and "gendh" programs into a new program
5045 "dhparam". The old programs are retained for now but will handle DH keys
5046 (instead of parameters) in future.
5049 *) Make the ciphers, s_server and s_client programs check the return values
5050 when a new cipher list is set.
5053 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
5054 ciphers. Before when the 56bit ciphers were enabled the sorting was
5057 The syntax for the cipher sorting has been extended to support sorting by
5058 cipher-strength (using the strength_bits hard coded in the tables).
5059 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
5061 Fix a bug in the cipher-command parser: when supplying a cipher command
5062 string with an "undefined" symbol (neither command nor alphanumeric
5063 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
5064 an error is flagged.
5066 Due to the strength-sorting extension, the code of the
5067 ssl_create_cipher_list() function was completely rearranged. I hope that
5068 the readability was also increased :-)
5069 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5071 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
5072 for the first serial number and places 2 in the serial number file. This
5073 avoids problems when the root CA is created with serial number zero and
5074 the first user certificate has the same issuer name and serial number
5078 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
5079 the new code. Add documentation for this stuff.
5082 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
5083 X509_*() to X509at_*() on the grounds that they don't handle X509
5084 structures and behave in an analagous way to the X509v3 functions:
5085 they shouldn't be called directly but wrapper functions should be used
5088 So we also now have some wrapper functions that call the X509at functions
5089 when passed certificate requests. (TO DO: similar things can be done with
5090 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
5091 things. Some of these need some d2i or i2d and print functionality
5092 because they handle more complex structures.)
5095 *) Add missing #ifndefs that caused missing symbols when building libssl
5096 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
5097 NO_RSA in ssl/s2*.c.
5098 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
5100 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
5101 has a return value which indicates the quality of the random data
5102 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
5103 error queue. New function RAND_pseudo_bytes() generates output that is
5104 guaranteed to be unique but not unpredictable. RAND_add is like
5105 RAND_seed, but takes an extra argument for an entropy estimate
5106 (RAND_seed always assumes full entropy).
5109 *) Do more iterations of Rabin-Miller probable prime test (specifically,
5110 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
5111 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
5112 in crypto/bn/bn_prime.c for the complete table). This guarantees a
5113 false-positive rate of at most 2^-80 for random input.
5116 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
5119 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
5120 in the 0.9.5 release), this returns the chain
5121 from an X509_CTX structure with a dup of the stack and all
5122 the X509 reference counts upped: so the stack will exist
5123 after X509_CTX_cleanup() has been called. Modify pkcs12.c
5126 Also make SSL_SESSION_print() print out the verify return
5130 *) Add manpage for the pkcs12 command. Also change the default
5131 behaviour so MAC iteration counts are used unless the new
5132 -nomaciter option is used. This improves file security and
5133 only older versions of MSIE (4.0 for example) need it.
5136 *) Honor the no-xxx Configure options when creating .DEF files.
5139 *) Add PKCS#10 attributes to field table: challengePassword,
5140 unstructuredName and unstructuredAddress. These are taken from
5141 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
5142 international characters are used.
5144 More changes to X509_ATTRIBUTE code: allow the setting of types
5145 based on strings. Remove the 'loc' parameter when adding
5146 attributes because these will be a SET OF encoding which is sorted
5150 *) Initial changes to the 'req' utility to allow request generation
5151 automation. This will allow an application to just generate a template
5152 file containing all the field values and have req construct the
5155 Initial support for X509_ATTRIBUTE handling. Stacks of these are
5156 used all over the place including certificate requests and PKCS#7
5157 structures. They are currently handled manually where necessary with
5158 some primitive wrappers for PKCS#7. The new functions behave in a
5159 manner analogous to the X509 extension functions: they allow
5160 attributes to be looked up by NID and added.
5162 Later something similar to the X509V3 code would be desirable to
5163 automatically handle the encoding, decoding and printing of the
5164 more complex types. The string types like challengePassword can
5165 be handled by the string table functions.
5167 Also modified the multi byte string table handling. Now there is
5168 a 'global mask' which masks out certain types. The table itself
5169 can use the flag STABLE_NO_MASK to ignore the mask setting: this
5170 is useful when for example there is only one permissible type
5171 (as in countryName) and using the mask might result in no valid
5175 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
5176 SSL_get_peer_finished to allow applications to obtain the latest
5177 Finished messages sent to the peer or expected from the peer,
5178 respectively. (SSL_get_peer_finished is usually the Finished message
5179 actually received from the peer, otherwise the protocol will be aborted.)
5181 As the Finished message are message digests of the complete handshake
5182 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
5183 be used for external authentication procedures when the authentication
5184 provided by SSL/TLS is not desired or is not enough.
5187 *) Enhanced support for Alpha Linux is added. Now ./config checks if
5188 the host supports BWX extension and if Compaq C is present on the
5189 $PATH. Just exploiting of the BWX extension results in 20-30%
5190 performance kick for some algorithms, e.g. DES and RC4 to mention
5191 a couple. Compaq C in turn generates ~20% faster code for MD5 and
5195 *) Add support for MS "fast SGC". This is arguably a violation of the
5196 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
5197 weak crypto and after checking the certificate is SGC a second one
5198 with strong crypto. MS SGC stops the first handshake after receiving
5199 the server certificate message and sends a second client hello. Since
5200 a server will typically do all the time consuming operations before
5201 expecting any further messages from the client (server key exchange
5202 is the most expensive) there is little difference between the two.
5204 To get OpenSSL to support MS SGC we have to permit a second client
5205 hello message after we have sent server done. In addition we have to
5206 reset the MAC if we do get this second client hello.
5209 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
5210 if a DER encoded private key is RSA or DSA traditional format. Changed
5211 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
5212 format DER encoded private key. Newer code should use PKCS#8 format which
5213 has the key type encoded in the ASN1 structure. Added DER private key
5214 support to pkcs8 application.
5217 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
5218 ciphersuites has been selected (as required by the SSL 3/TLS 1
5219 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
5220 is set, we interpret this as a request to violate the specification
5221 (the worst that can happen is a handshake failure, and 'correct'
5222 behaviour would result in a handshake failure anyway).
5225 *) In SSL_CTX_add_session, take into account that there might be multiple
5226 SSL_SESSION structures with the same session ID (e.g. when two threads
5227 concurrently obtain them from an external cache).
5228 The internal cache can handle only one SSL_SESSION with a given ID,
5229 so if there's a conflict, we now throw out the old one to achieve
5233 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
5234 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
5235 some routines that use cipher OIDs: some ciphers do not have OIDs
5236 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
5240 *) Simplify the trust setting structure and code. Now we just have
5241 two sequences of OIDs for trusted and rejected settings. These will
5242 typically have values the same as the extended key usage extension
5243 and any application specific purposes.
5245 The trust checking code now has a default behaviour: it will just
5246 check for an object with the same NID as the passed id. Functions can
5247 be provided to override either the default behaviour or the behaviour
5248 for a given id. SSL client, server and email already have functions
5249 in place for compatibility: they check the NID and also return "trusted"
5250 if the certificate is self signed.
5253 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
5254 traditional format into an EVP_PKEY structure.
5257 *) Add a password callback function PEM_cb() which either prompts for
5258 a password if usr_data is NULL or otherwise assumes it is a null
5259 terminated password. Allow passwords to be passed on command line
5260 environment or config files in a few more utilities.
5263 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
5264 keys. Add some short names for PKCS#8 PBE algorithms and allow them
5265 to be specified on the command line for the pkcs8 and pkcs12 utilities.
5266 Update documentation.
5269 *) Support for ASN1 "NULL" type. This could be handled before by using
5270 ASN1_TYPE but there wasn't any function that would try to read a NULL
5271 and produce an error if it couldn't. For compatibility we also have
5272 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
5273 don't allocate anything because they don't need to.
5276 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
5278 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
5280 *) Rebuild of the memory allocation routines used by OpenSSL code and
5281 possibly others as well. The purpose is to make an interface that
5282 provide hooks so anyone can build a separate set of allocation and
5283 deallocation routines to be used by OpenSSL, for example memory
5284 pool implementations, or something else, which was previously hard
5285 since Malloc(), Realloc() and Free() were defined as macros having
5286 the values malloc, realloc and free, respectively (except for Win32
5287 compilations). The same is provided for memory debugging code.
5288 OpenSSL already comes with functionality to find memory leaks, but
5289 this gives people a chance to debug other memory problems.
5291 With these changes, a new set of functions and macros have appeared:
5293 CRYPTO_set_mem_debug_functions() [F]
5294 CRYPTO_get_mem_debug_functions() [F]
5295 CRYPTO_dbg_set_options() [F]
5296 CRYPTO_dbg_get_options() [F]
5297 CRYPTO_malloc_debug_init() [M]
5299 The memory debug functions are NULL by default, unless the library
5300 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
5301 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
5302 gives the standard debugging functions that come with OpenSSL) or
5303 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
5304 provided by the library user) must be used. When the standard
5305 debugging functions are used, CRYPTO_dbg_set_options can be used to
5306 request additional information:
5307 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
5308 the CRYPTO_MDEBUG_xxx macro when compiling the library.
5310 Also, things like CRYPTO_set_mem_functions will always give the
5311 expected result (the new set of functions is used for allocation
5312 and deallocation) at all times, regardless of platform and compiler
5315 To finish it up, some functions that were never use in any other
5316 way than through macros have a new API and new semantic:
5319 CRYPTO_dbg_realloc()
5322 All macros of value have retained their old syntax.
5323 [Richard Levitte and Bodo Moeller]
5325 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
5326 ordering of SMIMECapabilities wasn't in "strength order" and there
5327 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
5331 *) Some ASN1 types with illegal zero length encoding (INTEGER,
5332 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
5333 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
5335 *) Merge in my S/MIME library for OpenSSL. This provides a simple
5336 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
5337 functionality to handle multipart/signed properly) and a utility
5338 called 'smime' to call all this stuff. This is based on code I
5339 originally wrote for Celo who have kindly allowed it to be
5340 included in OpenSSL.
5343 *) Add variants des_set_key_checked and des_set_key_unchecked of
5344 des_set_key (aka des_key_sched). Global variable des_check_key
5345 decides which of these is called by des_set_key; this way
5346 des_check_key behaves as it always did, but applications and
5347 the library itself, which was buggy for des_check_key == 1,
5348 have a cleaner way to pick the version they need.
5351 *) New function PKCS12_newpass() which changes the password of a
5355 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
5356 dynamic mix. In both cases the ids can be used as an index into the
5357 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
5358 functions so they accept a list of the field values and the
5359 application doesn't need to directly manipulate the X509_TRUST
5363 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
5367 *) Modify the way the V3 extension code looks up extensions. This now
5368 works in a similar way to the object code: we have some "standard"
5369 extensions in a static table which is searched with OBJ_bsearch()
5370 and the application can add dynamic ones if needed. The file
5371 crypto/x509v3/ext_dat.h now has the info: this file needs to be
5372 updated whenever a new extension is added to the core code and kept
5373 in ext_nid order. There is a simple program 'tabtest.c' which checks
5374 this. New extensions are not added too often so this file can readily
5375 be maintained manually.
5377 There are two big advantages in doing things this way. The extensions
5378 can be looked up immediately and no longer need to be "added" using
5379 X509V3_add_standard_extensions(): this function now does nothing.
5380 [Side note: I get *lots* of email saying the extension code doesn't
5381 work because people forget to call this function]
5382 Also no dynamic allocation is done unless new extensions are added:
5383 so if we don't add custom extensions there is no need to call
5384 X509V3_EXT_cleanup().
5387 *) Modify enc utility's salting as follows: make salting the default. Add a
5388 magic header, so unsalted files fail gracefully instead of just decrypting
5389 to garbage. This is because not salting is a big security hole, so people
5390 should be discouraged from doing it.
5393 *) Fixes and enhancements to the 'x509' utility. It allowed a message
5394 digest to be passed on the command line but it only used this
5395 parameter when signing a certificate. Modified so all relevant
5396 operations are affected by the digest parameter including the
5397 -fingerprint and -x509toreq options. Also -x509toreq choked if a
5398 DSA key was used because it didn't fix the digest.
5401 *) Initial certificate chain verify code. Currently tests the untrusted
5402 certificates for consistency with the verify purpose (which is set
5403 when the X509_STORE_CTX structure is set up) and checks the pathlength.
5405 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
5406 this is because it will reject chains with invalid extensions whereas
5407 every previous version of OpenSSL and SSLeay made no checks at all.
5409 Trust code: checks the root CA for the relevant trust settings. Trust
5410 settings have an initial value consistent with the verify purpose: e.g.
5411 if the verify purpose is for SSL client use it expects the CA to be
5412 trusted for SSL client use. However the default value can be changed to
5413 permit custom trust settings: one example of this would be to only trust
5414 certificates from a specific "secure" set of CAs.
5416 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
5417 which should be used for version portability: especially since the
5418 verify structure is likely to change more often now.
5420 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
5421 to set them. If not set then assume SSL clients will verify SSL servers
5424 Two new options to the verify program: -untrusted allows a set of
5425 untrusted certificates to be passed in and -purpose which sets the
5426 intended purpose of the certificate. If a purpose is set then the
5427 new chain verify code is used to check extension consistency.
5430 *) Support for the authority information access extension.
5433 *) Modify RSA and DSA PEM read routines to transparently handle
5434 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
5435 public keys in a format compatible with certificate
5436 SubjectPublicKeyInfo structures. Unfortunately there were already
5437 functions called *_PublicKey_* which used various odd formats so
5438 these are retained for compatibility: however the DSA variants were
5439 never in a public release so they have been deleted. Changed dsa/rsa
5440 utilities to handle the new format: note no releases ever handled public
5441 keys so we should be OK.
5443 The primary motivation for this change is to avoid the same fiasco
5444 that dogs private keys: there are several incompatible private key
5445 formats some of which are standard and some OpenSSL specific and
5446 require various evil hacks to allow partial transparent handling and
5447 even then it doesn't work with DER formats. Given the option anything
5448 other than PKCS#8 should be dumped: but the other formats have to
5449 stay in the name of compatibility.
5451 With public keys and the benefit of hindsight one standard format
5452 is used which works with EVP_PKEY, RSA or DSA structures: though
5453 it clearly returns an error if you try to read the wrong kind of key.
5455 Added a -pubkey option to the 'x509' utility to output the public key.
5456 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
5457 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
5458 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
5459 that do the same as the EVP_PKEY_assign_*() except they up the
5460 reference count of the added key (they don't "swallow" the
5464 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
5465 CRLs would fail if the file contained no certificates or no CRLs:
5466 added a new function to read in both types and return the number
5467 read: this means that if none are read it will be an error. The
5468 DER versions of the certificate and CRL reader would always fail
5469 because it isn't possible to mix certificates and CRLs in DER format
5470 without choking one or the other routine. Changed this to just read
5471 a certificate: this is the best we can do. Also modified the code
5472 in apps/verify.c to take notice of return codes: it was previously
5473 attempting to read in certificates from NULL pointers and ignoring
5474 any errors: this is one reason why the cert and CRL reader seemed
5475 to work. It doesn't check return codes from the default certificate
5476 routines: these may well fail if the certificates aren't installed.
5479 *) Code to support otherName option in GeneralName.
5482 *) First update to verify code. Change the verify utility
5483 so it warns if it is passed a self signed certificate:
5484 for consistency with the normal behaviour. X509_verify
5485 has been modified to it will now verify a self signed
5486 certificate if *exactly* the same certificate appears
5487 in the store: it was previously impossible to trust a
5488 single self signed certificate. This means that:
5489 openssl verify ss.pem
5490 now gives a warning about a self signed certificate but
5491 openssl verify -CAfile ss.pem ss.pem
5495 *) For servers, store verify_result in SSL_SESSION data structure
5496 (and add it to external session representation).
5497 This is needed when client certificate verifications fails,
5498 but an application-provided verification callback (set by
5499 SSL_CTX_set_cert_verify_callback) allows accepting the session
5500 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
5501 but returns 1): When the session is reused, we have to set
5502 ssl->verify_result to the appropriate error code to avoid
5504 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
5506 *) Fix a bug in the new PKCS#7 code: it didn't consider the
5507 case in PKCS7_dataInit() where the signed PKCS7 structure
5508 didn't contain any existing data because it was being created.
5509 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
5511 *) Add a salt to the key derivation routines in enc.c. This
5512 forms the first 8 bytes of the encrypted file. Also add a
5513 -S option to allow a salt to be input on the command line.
5516 *) New function X509_cmp(). Oddly enough there wasn't a function
5517 to compare two certificates. We do this by working out the SHA1
5518 hash and comparing that. X509_cmp() will be needed by the trust
5522 *) SSL_get1_session() is like SSL_get_session(), but increments
5523 the reference count in the SSL_SESSION returned.
5524 [Geoff Thorpe <geoff@eu.c2.net>]
5526 *) Fix for 'req': it was adding a null to request attributes.
5527 Also change the X509_LOOKUP and X509_INFO code to handle
5528 certificate auxiliary information.
5531 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
5535 *) Add the possibility to add extra information to the memory leak
5536 detecting output, to form tracebacks, showing from where each
5537 allocation was originated: CRYPTO_push_info("constant string") adds
5538 the string plus current file name and line number to a per-thread
5539 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
5540 is like calling CYRPTO_pop_info() until the stack is empty.
5541 Also updated memory leak detection code to be multi-thread-safe.
5544 *) Add options -text and -noout to pkcs7 utility and delete the
5545 encryption options which never did anything. Update docs.
5548 *) Add options to some of the utilities to allow the pass phrase
5549 to be included on either the command line (not recommended on
5550 OSes like Unix) or read from the environment. Update the
5551 manpages and fix a few bugs.
5554 *) Add a few manpages for some of the openssl commands.
5557 *) Fix the -revoke option in ca. It was freeing up memory twice,
5558 leaking and not finding already revoked certificates.
5561 *) Extensive changes to support certificate auxiliary information.
5562 This involves the use of X509_CERT_AUX structure and X509_AUX
5563 functions. An X509_AUX function such as PEM_read_X509_AUX()
5564 can still read in a certificate file in the usual way but it
5565 will also read in any additional "auxiliary information". By
5566 doing things this way a fair degree of compatibility can be
5567 retained: existing certificates can have this information added
5568 using the new 'x509' options.
5570 Current auxiliary information includes an "alias" and some trust
5571 settings. The trust settings will ultimately be used in enhanced
5572 certificate chain verification routines: currently a certificate
5573 can only be trusted if it is self signed and then it is trusted
5577 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
5578 The problem was that one of the replacement routines had not been working
5579 since SSLeay releases. For now the offending routine has been replaced
5580 with non-optimised assembler. Even so, this now gives around 95%
5581 performance improvement for 1024 bit RSA signs.
5584 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
5585 handling. Most clients have the effective key size in bits equal to
5586 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
5587 A few however don't do this and instead use the size of the decrypted key
5588 to determine the RC2 key length and the AlgorithmIdentifier to determine
5589 the effective key length. In this case the effective key length can still
5590 be 40 bits but the key length can be 168 bits for example. This is fixed
5591 by manually forcing an RC2 key into the EVP_PKEY structure because the
5592 EVP code can't currently handle unusual RC2 key sizes: it always assumes
5593 the key length and effective key length are equal.
5596 *) Add a bunch of functions that should simplify the creation of
5597 X509_NAME structures. Now you should be able to do:
5598 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
5599 and have it automatically work out the correct field type and fill in
5600 the structures. The more adventurous can try:
5601 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
5602 and it will (hopefully) work out the correct multibyte encoding.
5605 *) Change the 'req' utility to use the new field handling and multibyte
5606 copy routines. Before the DN field creation was handled in an ad hoc
5607 way in req, ca, and x509 which was rather broken and didn't support
5608 BMPStrings or UTF8Strings. Since some software doesn't implement
5609 BMPStrings or UTF8Strings yet, they can be enabled using the config file
5610 using the dirstring_type option. See the new comment in the default
5611 openssl.cnf for more info.
5614 *) Make crypto/rand/md_rand.c more robust:
5615 - Assure unique random numbers after fork().
5616 - Make sure that concurrent threads access the global counter and
5617 md serializably so that we never lose entropy in them
5618 or use exactly the same state in multiple threads.
5619 Access to the large state is not always serializable because
5620 the additional locking could be a performance killer, and
5621 md should be large enough anyway.
5624 *) New file apps/app_rand.c with commonly needed functionality
5625 for handling the random seed file.
5627 Use the random seed file in some applications that previously did not:
5629 dsaparam -genkey (which also ignored its '-rand' option),
5632 x509 (when signing).
5633 Except on systems with /dev/urandom, it is crucial to have a random
5634 seed file at least for key creation, DSA signing, and for DH exchanges;
5635 for RSA signatures we could do without one.
5637 gendh and gendsa (unlike genrsa) used to read only the first byte
5638 of each file listed in the '-rand' option. The function as previously
5639 found in genrsa is now in app_rand.c and is used by all programs
5640 that support '-rand'.
5643 *) In RAND_write_file, use mode 0600 for creating files;
5644 don't just chmod when it may be too late.
5647 *) Report an error from X509_STORE_load_locations
5648 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
5651 *) New function ASN1_mbstring_copy() this copies a string in either
5652 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
5653 into an ASN1_STRING type. A mask of permissible types is passed
5654 and it chooses the "minimal" type to use or an error if not type
5658 *) Add function equivalents to the various macros in asn1.h. The old
5659 macros are retained with an M_ prefix. Code inside the library can
5660 use the M_ macros. External code (including the openssl utility)
5661 should *NOT* in order to be "shared library friendly".
5664 *) Add various functions that can check a certificate's extensions
5665 to see if it usable for various purposes such as SSL client,
5666 server or S/MIME and CAs of these types. This is currently
5667 VERY EXPERIMENTAL but will ultimately be used for certificate chain
5668 verification. Also added a -purpose flag to x509 utility to
5669 print out all the purposes.
5672 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
5676 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
5677 for, obtain and decode and extension and obtain its critical flag.
5678 This allows all the necessary extension code to be handled in a
5679 single function call.
5682 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
5683 platforms. See crypto/rc4/rc4_enc.c for further details.
5686 *) New -noout option to asn1parse. This causes no output to be produced
5687 its main use is when combined with -strparse and -out to extract data
5688 from a file (which may not be in ASN.1 format).
5691 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
5692 when producing the local key id.
5693 [Richard Levitte <levitte@stacken.kth.se>]
5695 *) New option -dhparam in s_server. This allows a DH parameter file to be
5696 stated explicitly. If it is not stated then it tries the first server
5697 certificate file. The previous behaviour hard coded the filename
5701 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
5702 a public key to be input or output. For example:
5703 openssl rsa -in key.pem -pubout -out pubkey.pem
5704 Also added necessary DSA public key functions to handle this.
5707 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
5708 in the message. This was handled by allowing
5709 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
5710 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
5712 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
5713 to the end of the strings whereas this didn't. This would cause problems
5714 if strings read with d2i_ASN1_bytes() were later modified.
5715 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
5717 *) Fix for base64 decode bug. When a base64 bio reads only one line of
5718 data and it contains EOF it will end up returning an error. This is
5719 caused by input 46 bytes long. The cause is due to the way base64
5720 BIOs find the start of base64 encoded data. They do this by trying a
5721 trial decode on each line until they find one that works. When they
5722 do a flag is set and it starts again knowing it can pass all the
5723 data directly through the decoder. Unfortunately it doesn't reset
5724 the context it uses. This means that if EOF is reached an attempt
5725 is made to pass two EOFs through the context and this causes the
5726 resulting error. This can also cause other problems as well. As is
5727 usual with these problems it takes *ages* to find and the fix is
5728 trivial: move one line.
5729 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
5731 *) Ugly workaround to get s_client and s_server working under Windows. The
5732 old code wouldn't work because it needed to select() on sockets and the
5733 tty (for keypresses and to see if data could be written). Win32 only
5734 supports select() on sockets so we select() with a 1s timeout on the
5735 sockets and then see if any characters are waiting to be read, if none
5736 are present then we retry, we also assume we can always write data to
5737 the tty. This isn't nice because the code then blocks until we've
5738 received a complete line of data and it is effectively polling the
5739 keyboard at 1s intervals: however it's quite a bit better than not
5740 working at all :-) A dedicated Windows application might handle this
5741 with an event loop for example.
5744 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
5745 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
5746 will be called when RSA_sign() and RSA_verify() are used. This is useful
5747 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
5748 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
5749 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
5750 This necessitated the support of an extra signature type NID_md5_sha1
5751 for SSL signatures and modifications to the SSL library to use it instead
5752 of calling RSA_public_decrypt() and RSA_private_encrypt().
5755 *) Add new -verify -CAfile and -CApath options to the crl program, these
5756 will lookup a CRL issuers certificate and verify the signature in a
5757 similar way to the verify program. Tidy up the crl program so it
5758 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
5759 less strict. It will now permit CRL extensions even if it is not
5760 a V2 CRL: this will allow it to tolerate some broken CRLs.
5763 *) Initialize all non-automatic variables each time one of the openssl
5764 sub-programs is started (this is necessary as they may be started
5765 multiple times from the "OpenSSL>" prompt).
5766 [Lennart Bang, Bodo Moeller]
5768 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
5769 removing all other RSA functionality (this is what NO_RSA does). This
5770 is so (for example) those in the US can disable those operations covered
5771 by the RSA patent while allowing storage and parsing of RSA keys and RSA
5775 *) Non-copying interface to BIO pairs.
5776 (still largely untested)
5779 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
5780 ASCII string. This was handled independently in various places before.
5783 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
5784 UTF8 strings a character at a time.
5787 *) Use client_version from client hello to select the protocol
5788 (s23_srvr.c) and for RSA client key exchange verification
5789 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
5792 *) Add various utility functions to handle SPKACs, these were previously
5793 handled by poking round in the structure internals. Added new function
5794 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
5795 print, verify and generate SPKACs. Based on an original idea from
5796 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
5799 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
5802 *) Allow the config file extension section to be overwritten on the
5803 command line. Based on an original idea from Massimiliano Pala
5804 <madwolf@comune.modena.it>. The new option is called -extensions
5805 and can be applied to ca, req and x509. Also -reqexts to override
5806 the request extensions in req and -crlexts to override the crl extensions
5810 *) Add new feature to the SPKAC handling in ca. Now you can include
5811 the same field multiple times by preceding it by "XXXX." for example:
5814 this is the same syntax as used in the req config file.
5817 *) Allow certificate extensions to be added to certificate requests. These
5818 are specified in a 'req_extensions' option of the req section of the
5819 config file. They can be printed out with the -text option to req but
5820 are otherwise ignored at present.
5823 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
5824 data read consists of only the final block it would not decrypted because
5825 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
5826 A misplaced 'break' also meant the decrypted final block might not be
5827 copied until the next read.
5830 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
5831 a few extra parameters to the DH structure: these will be useful if
5832 for example we want the value of 'q' or implement X9.42 DH.
5835 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
5836 provides hooks that allow the default DSA functions or functions on a
5837 "per key" basis to be replaced. This allows hardware acceleration and
5838 hardware key storage to be handled without major modification to the
5839 library. Also added low level modexp hooks and CRYPTO_EX structure and
5840 associated functions.
5843 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
5844 as "read only": it can't be written to and the buffer it points to will
5845 not be freed. Reading from a read only BIO is much more efficient than
5846 a normal memory BIO. This was added because there are several times when
5847 an area of memory needs to be read from a BIO. The previous method was
5848 to create a memory BIO and write the data to it, this results in two
5849 copies of the data and an O(n^2) reading algorithm. There is a new
5850 function BIO_new_mem_buf() which creates a read only memory BIO from
5851 an area of memory. Also modified the PKCS#7 routines to use read only
5855 *) Bugfix: ssl23_get_client_hello did not work properly when called in
5856 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
5857 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
5858 but a retry condition occured while trying to read the rest.
5861 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
5862 NID_pkcs7_encrypted by default: this was wrong since this should almost
5863 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
5864 the encrypted data type: this is a more sensible place to put it and it
5865 allows the PKCS#12 code to be tidied up that duplicated this
5869 *) Changed obj_dat.pl script so it takes its input and output files on
5870 the command line. This should avoid shell escape redirection problems
5874 *) Initial support for certificate extension requests, these are included
5875 in things like Xenroll certificate requests. Included functions to allow
5876 extensions to be obtained and added.
5879 *) -crlf option to s_client and s_server for sending newlines as
5880 CRLF (as required by many protocols).
5883 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
5885 *) Install libRSAglue.a when OpenSSL is built with RSAref.
5886 [Ralf S. Engelschall]
5888 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
5889 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
5891 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
5895 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
5896 DH parameters/keys (q is lost during that conversion, but the resulting
5897 DH parameters contain its length).
5899 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
5900 much faster than DH_generate_parameters (which creates parameters
5901 where p = 2*q + 1), and also the smaller q makes DH computations
5902 much more efficient (160-bit exponentiation instead of 1024-bit
5903 exponentiation); so this provides a convenient way to support DHE
5904 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
5905 utter importance to use
5906 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
5908 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
5909 when such DH parameters are used, because otherwise small subgroup
5910 attacks may become possible!
5913 *) Avoid memory leak in i2d_DHparams.
5916 *) Allow the -k option to be used more than once in the enc program:
5917 this allows the same encrypted message to be read by multiple recipients.
5920 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
5921 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
5922 it will always use the numerical form of the OID, even if it has a short
5926 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
5927 method only got called if p,q,dmp1,dmq1,iqmp components were present,
5928 otherwise bn_mod_exp was called. In the case of hardware keys for example
5929 no private key components need be present and it might store extra data
5930 in the RSA structure, which cannot be accessed from bn_mod_exp.
5931 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
5932 private key operations.
5935 *) Added support for SPARC Linux.
5938 *) pem_password_cb function type incompatibly changed from
5939 typedef int pem_password_cb(char *buf, int size, int rwflag);
5941 ....(char *buf, int size, int rwflag, void *userdata);
5942 so that applications can pass data to their callbacks:
5943 The PEM[_ASN1]_{read,write}... functions and macros now take an
5944 additional void * argument, which is just handed through whenever
5945 the password callback is called.
5946 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
5948 New function SSL_CTX_set_default_passwd_cb_userdata.
5950 Compatibility note: As many C implementations push function arguments
5951 onto the stack in reverse order, the new library version is likely to
5952 interoperate with programs that have been compiled with the old
5953 pem_password_cb definition (PEM_whatever takes some data that
5954 happens to be on the stack as its last argument, and the callback
5955 just ignores this garbage); but there is no guarantee whatsoever that
5958 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
5959 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
5960 problems not only on Windows, but also on some Unix platforms.
5961 To avoid problematic command lines, these definitions are now in an
5962 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
5963 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
5966 *) MIPS III/IV assembler module is reimplemented.
5969 *) More DES library cleanups: remove references to srand/rand and
5970 delete an unused file.
5973 *) Add support for the the free Netwide assembler (NASM) under Win32,
5974 since not many people have MASM (ml) and it can be hard to obtain.
5975 This is currently experimental but it seems to work OK and pass all
5976 the tests. Check out INSTALL.W32 for info.
5979 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
5980 without temporary keys kept an extra copy of the server key,
5981 and connections with temporary keys did not free everything in case
5985 *) New function RSA_check_key and new openssl rsa option -check
5986 for verifying the consistency of RSA keys.
5987 [Ulf Moeller, Bodo Moeller]
5989 *) Various changes to make Win32 compile work:
5990 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
5991 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
5992 comparison" warnings.
5993 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
5996 *) Add a debugging option to PKCS#5 v2 key generation function: when
5997 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
5998 derived keys are printed to stderr.
6001 *) Copy the flags in ASN1_STRING_dup().
6002 [Roman E. Pavlov <pre@mo.msk.ru>]
6004 *) The x509 application mishandled signing requests containing DSA
6005 keys when the signing key was also DSA and the parameters didn't match.
6007 It was supposed to omit the parameters when they matched the signing key:
6008 the verifying software was then supposed to automatically use the CA's
6009 parameters if they were absent from the end user certificate.
6011 Omitting parameters is no longer recommended. The test was also
6012 the wrong way round! This was probably due to unusual behaviour in
6013 EVP_cmp_parameters() which returns 1 if the parameters match.
6014 This meant that parameters were omitted when they *didn't* match and
6015 the certificate was useless. Certificates signed with 'ca' didn't have
6017 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
6019 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
6020 The interface is as follows:
6021 Applications can use
6022 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
6023 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
6024 "off" is now the default.
6025 The library internally uses
6026 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
6027 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
6028 to disable memory-checking temporarily.
6030 Some inconsistent states that previously were possible (and were
6031 even the default) are now avoided.
6033 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
6034 with each memory chunk allocated; this is occasionally more helpful
6035 than just having a counter.
6037 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
6039 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
6043 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
6044 which largely parallels "options", but is for changing API behaviour,
6045 whereas "options" are about protocol behaviour.
6046 Initial "mode" flags are:
6048 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
6049 a single record has been written.
6050 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
6051 retries use the same buffer location.
6052 (But all of the contents must be
6056 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
6059 *) Fix problems with no-hmac etc.
6060 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
6062 *) New functions RSA_get_default_method(), RSA_set_method() and
6063 RSA_get_method(). These allows replacement of RSA_METHODs without having
6064 to mess around with the internals of an RSA structure.
6067 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
6068 Also really enable memory leak checks in openssl.c and in some
6070 [Chad C. Mulligan, Bodo Moeller]
6072 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
6073 up the length of negative integers. This has now been simplified to just
6074 store the length when it is first determined and use it later, rather
6075 than trying to keep track of where data is copied and updating it to
6077 [Steve Henson, reported by Brien Wheeler
6078 <bwheeler@authentica-security.com>]
6080 *) Add a new function PKCS7_signatureVerify. This allows the verification
6081 of a PKCS#7 signature but with the signing certificate passed to the
6082 function itself. This contrasts with PKCS7_dataVerify which assumes the
6083 certificate is present in the PKCS#7 structure. This isn't always the
6084 case: certificates can be omitted from a PKCS#7 structure and be
6085 distributed by "out of band" means (such as a certificate database).
6088 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
6089 function prototypes in pem.h, also change util/mkdef.pl to add the
6090 necessary function names.
6093 *) mk1mf.pl (used by Windows builds) did not properly read the
6094 options set by Configure in the top level Makefile, and Configure
6095 was not even able to write more than one option correctly.
6096 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
6099 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
6100 file to be loaded from a BIO or FILE pointer. The BIO version will
6101 for example allow memory BIOs to contain config info.
6104 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
6105 Whoever hopes to achieve shared-library compatibility across versions
6106 must use this, not the compile-time macro.
6107 (Exercise 0.9.4: Which is the minimum library version required by
6109 Note: All this applies only to multi-threaded programs, others don't
6113 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
6114 through a BIO pair triggered the default case, i.e.
6115 SSLerr(...,SSL_R_UNKNOWN_STATE).
6118 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
6119 can use the SSL library even if none of the specific BIOs is
6123 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
6124 for the encoded length.
6125 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
6127 *) Add initial documentation of the X509V3 functions.
6130 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
6131 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
6132 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
6133 secure PKCS#8 private key format with a high iteration count.
6136 *) Fix determination of Perl interpreter: A perl or perl5
6137 _directory_ in $PATH was also accepted as the interpreter.
6138 [Ralf S. Engelschall]
6140 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
6141 wrong with it but it was very old and did things like calling
6142 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
6146 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
6147 to use the new extension code.
6150 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
6151 with macros. This should make it easier to change their form, add extra
6152 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
6156 *) Add to configuration table a new entry that can specify an alternative
6157 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
6158 according to Mark Crispin <MRC@Panda.COM>.
6162 *) DES CBC did not update the IV. Weird.
6165 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
6166 Changing the behaviour of the former might break existing programs --
6167 where IV updating is needed, des_ncbc_encrypt can be used.
6170 *) When bntest is run from "make test" it drives bc to check its
6171 calculations, as well as internally checking them. If an internal check
6172 fails, it needs to cause bc to give a non-zero result or make test carries
6173 on without noticing the failure. Fixed.
6176 *) DES library cleanups.
6179 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
6180 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
6181 ciphers. NOTE: although the key derivation function has been verified
6182 against some published test vectors it has not been extensively tested
6183 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
6187 *) Instead of "mkdir -p", which is not fully portable, use new
6188 Perl script "util/mkdir-p.pl".
6191 *) Rewrite the way password based encryption (PBE) is handled. It used to
6192 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
6193 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
6194 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
6195 the 'parameter' field of the AlgorithmIdentifier is passed to the
6196 underlying key generation function so it must do its own ASN1 parsing.
6197 This has also changed the EVP_PBE_CipherInit() function which now has a
6198 'parameter' argument instead of literal salt and iteration count values
6199 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
6202 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
6203 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
6204 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
6205 KEY" because this clashed with PKCS#8 unencrypted string. Since this
6206 value was just used as a "magic string" and not used directly its
6207 value doesn't matter.
6210 *) Introduce some semblance of const correctness to BN. Shame C doesn't
6214 *) "linux-sparc64" configuration (ultrapenguin).
6215 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
6216 "linux-sparc" configuration.
6217 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
6219 *) config now generates no-xxx options for missing ciphers.
6222 *) Support the EBCDIC character set (work in progress).
6223 File ebcdic.c not yet included because it has a different license.
6224 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6226 *) Support BS2000/OSD-POSIX.
6227 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6229 *) Make callbacks for key generation use void * instead of char *.
6232 *) Make S/MIME samples compile (not yet tested).
6235 *) Additional typesafe stacks.
6238 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
6242 Changes between 0.9.3 and 0.9.3a [29 May 1999]
6244 *) New configuration variant "sco5-gcc".
6246 *) Updated some demos.
6247 [Sean O Riordain, Wade Scholine]
6249 *) Add missing BIO_free at exit of pkcs12 application.
6252 *) Fix memory leak in conf.c.
6255 *) Updates for Win32 to assembler version of MD5.
6258 *) Set #! path to perl in apps/der_chop to where we found it
6259 instead of using a fixed path.
6262 *) SHA library changes for irix64-mips4-cc.
6265 *) Improvements for VMS support.
6269 Changes between 0.9.2b and 0.9.3 [24 May 1999]
6271 *) Bignum library bug fix. IRIX 6 passes "make test" now!
6272 This also avoids the problems with SC4.2 and unpatched SC5.
6273 [Andy Polyakov <appro@fy.chalmers.se>]
6275 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
6276 These are required because of the typesafe stack would otherwise break
6277 existing code. If old code used a structure member which used to be STACK
6278 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
6279 sk_num or sk_value it would produce an error because the num, data members
6280 are not present in STACK_OF. Now it just produces a warning. sk_set
6281 replaces the old method of assigning a value to sk_value
6282 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
6283 that does this will no longer work (and should use sk_set instead) but
6284 this could be regarded as a "questionable" behaviour anyway.
6287 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
6288 correctly handle encrypted S/MIME data.
6291 *) Change type of various DES function arguments from des_cblock
6292 (which means, in function argument declarations, pointer to char)
6293 to des_cblock * (meaning pointer to array with 8 char elements),
6294 which allows the compiler to do more typechecking; it was like
6295 that back in SSLeay, but with lots of ugly casts.
6297 Introduce new type const_des_cblock.
6300 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
6301 problems: find RecipientInfo structure that matches recipient certificate
6302 and initialise the ASN1 structures properly based on passed cipher.
6305 *) Belatedly make the BN tests actually check the results.
6308 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
6309 to and from BNs: it was completely broken. New compilation option
6310 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
6311 key elements as negative integers.
6314 *) Reorganize and speed up MD5.
6315 [Andy Polyakov <appro@fy.chalmers.se>]
6318 [Richard Levitte <richard@levitte.org>]
6320 *) New option -out to asn1parse to allow the parsed structure to be
6321 output to a file. This is most useful when combined with the -strparse
6322 option to examine the output of things like OCTET STRINGS.
6325 *) Make SSL library a little more fool-proof by not requiring any longer
6326 that SSL_set_{accept,connect}_state be called before
6327 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
6328 in many applications because usually everything *appeared* to work as
6329 intended anyway -- now it really works as intended).
6332 *) Move openssl.cnf out of lib/.
6335 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
6336 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
6337 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
6338 [Ralf S. Engelschall]
6340 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
6341 handle PKCS#7 enveloped data properly.
6342 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
6344 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
6345 copying pointers. The cert_st handling is changed by this in
6346 various ways (and thus what used to be known as ctx->default_cert
6347 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
6348 any longer when s->cert does not give us what we need).
6349 ssl_cert_instantiate becomes obsolete by this change.
6350 As soon as we've got the new code right (possibly it already is?),
6351 we have solved a couple of bugs of the earlier code where s->cert
6352 was used as if it could not have been shared with other SSL structures.
6354 Note that using the SSL API in certain dirty ways now will result
6355 in different behaviour than observed with earlier library versions:
6356 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
6357 does not influence s as it used to.
6359 In order to clean up things more thoroughly, inside SSL_SESSION
6360 we don't use CERT any longer, but a new structure SESS_CERT
6361 that holds per-session data (if available); currently, this is
6362 the peer's certificate chain and, for clients, the server's certificate
6363 and temporary key. CERT holds only those values that can have
6364 meaningful defaults in an SSL_CTX.
6367 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
6368 from the internal representation. Various PKCS#7 fixes: remove some
6369 evil casts and set the enc_dig_alg field properly based on the signing
6373 *) Allow PKCS#12 password to be set from the command line or the
6374 environment. Let 'ca' get its config file name from the environment
6375 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
6379 *) Allow certificate policies extension to use an IA5STRING for the
6380 organization field. This is contrary to the PKIX definition but
6381 VeriSign uses it and IE5 only recognises this form. Document 'x509'
6385 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
6386 without disallowing inline assembler and the like for non-pedantic builds.
6389 *) Support Borland C++ builder.
6390 [Janez Jere <jj@void.si>, modified by Ulf Möller]
6395 *) SHA-1 cleanups and performance enhancements.
6396 [Andy Polyakov <appro@fy.chalmers.se>]
6398 *) Sparc v8plus assembler for the bignum library.
6399 [Andy Polyakov <appro@fy.chalmers.se>]
6401 *) Accept any -xxx and +xxx compiler options in Configure.
6404 *) Update HPUX configuration.
6407 *) Add missing sk_<type>_unshift() function to safestack.h
6408 [Ralf S. Engelschall]
6410 *) New function SSL_CTX_use_certificate_chain_file that sets the
6411 "extra_cert"s in addition to the certificate. (This makes sense
6412 only for "PEM" format files, as chains as a whole are not
6416 *) Support verify_depth from the SSL API.
6417 x509_vfy.c had what can be considered an off-by-one-error:
6418 Its depth (which was not part of the external interface)
6419 was actually counting the number of certificates in a chain;
6420 now it really counts the depth.
6423 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
6424 instead of X509err, which often resulted in confusing error
6425 messages since the error codes are not globally unique
6426 (e.g. an alleged error in ssl3_accept when a certificate
6427 didn't match the private key).
6429 *) New function SSL_CTX_set_session_id_context that allows to set a default
6430 value (so that you don't need SSL_set_session_id_context for each
6431 connection using the SSL_CTX).
6434 *) OAEP decoding bug fix.
6437 *) Support INSTALL_PREFIX for package builders, as proposed by
6441 *) New Configure options "threads" and "no-threads". For systems
6442 where the proper compiler options are known (currently Solaris
6443 and Linux), "threads" is the default.
6446 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
6449 *) Install various scripts to $(OPENSSLDIR)/misc, not to
6450 $(INSTALLTOP)/bin -- they shouldn't clutter directories
6451 such as /usr/local/bin.
6454 *) "make linux-shared" to build shared libraries.
6455 [Niels Poppe <niels@netbox.org>]
6457 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
6460 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
6461 extension adding in x509 utility.
6464 *) Remove NOPROTO sections and error code comments.
6467 *) Partial rewrite of the DEF file generator to now parse the ANSI
6471 *) New Configure options --prefix=DIR and --openssldir=DIR.
6474 *) Complete rewrite of the error code script(s). It is all now handled
6475 by one script at the top level which handles error code gathering,
6476 header rewriting and C source file generation. It should be much better
6477 than the old method: it now uses a modified version of Ulf's parser to
6478 read the ANSI prototypes in all header files (thus the old K&R definitions
6479 aren't needed for error creation any more) and do a better job of
6480 translating function codes into names. The old 'ASN1 error code imbedded
6481 in a comment' is no longer necessary and it doesn't use .err files which
6482 have now been deleted. Also the error code call doesn't have to appear all
6483 on one line (which resulted in some large lines...).
6486 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
6489 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
6490 0 (which usually indicates a closed connection), but continue reading.
6493 *) Fix some race conditions.
6496 *) Add support for CRL distribution points extension. Add Certificate
6497 Policies and CRL distribution points documentation.
6500 *) Move the autogenerated header file parts to crypto/opensslconf.h.
6503 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
6504 8 of keying material. Merlin has also confirmed interop with this fix
6505 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
6506 [Merlin Hughes <merlin@baltimore.ie>]
6508 *) Fix lots of warnings.
6509 [Richard Levitte <levitte@stacken.kth.se>]
6511 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
6512 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
6513 [Richard Levitte <levitte@stacken.kth.se>]
6515 *) Fix problems with sizeof(long) == 8.
6516 [Andy Polyakov <appro@fy.chalmers.se>]
6518 *) Change functions to ANSI C.
6521 *) Fix typos in error codes.
6522 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
6524 *) Remove defunct assembler files from Configure.
6527 *) SPARC v8 assembler BIGNUM implementation.
6528 [Andy Polyakov <appro@fy.chalmers.se>]
6530 *) Support for Certificate Policies extension: both print and set.
6531 Various additions to support the r2i method this uses.
6534 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
6535 return a const string when you are expecting an allocated buffer.
6538 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
6539 types DirectoryString and DisplayText.
6542 *) Add code to allow r2i extensions to access the configuration database,
6543 add an LHASH database driver and add several ctx helper functions.
6546 *) Fix an evil bug in bn_expand2() which caused various BN functions to
6547 fail when they extended the size of a BIGNUM.
6550 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
6551 support typesafe stack.
6554 *) Fix typo in SSL_[gs]et_options().
6555 [Nils Frostberg <nils@medcom.se>]
6557 *) Delete various functions and files that belonged to the (now obsolete)
6558 old X509V3 handling code.
6561 *) New Configure option "rsaref".
6564 *) Don't auto-generate pem.h.
6567 *) Introduce type-safe ASN.1 SETs.
6570 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
6571 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
6573 *) Introduce type-safe STACKs. This will almost certainly break lots of code
6574 that links with OpenSSL (well at least cause lots of warnings), but fear
6575 not: the conversion is trivial, and it eliminates loads of evil casts. A
6576 few STACKed things have been converted already. Feel free to convert more.
6577 In the fullness of time, I'll do away with the STACK type altogether.
6580 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
6581 specified in <certfile> by updating the entry in the index.txt file.
6582 This way one no longer has to edit the index.txt file manually for
6583 revoking a certificate. The -revoke option does the gory details now.
6584 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
6586 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
6587 `-text' option at all and this way the `-noout -text' combination was
6588 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
6589 [Ralf S. Engelschall]
6591 *) Make sure a corresponding plain text error message exists for the
6592 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
6593 verify callback function determined that a certificate was revoked.
6594 [Ralf S. Engelschall]
6596 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
6597 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
6598 all available cipers including rc5, which was forgotten until now.
6599 In order to let the testing shell script know which algorithms
6600 are available, a new (up to now undocumented) command
6601 "openssl list-cipher-commands" is used.
6604 *) Bugfix: s_client occasionally would sleep in select() when
6605 it should have checked SSL_pending() first.
6608 *) New functions DSA_do_sign and DSA_do_verify to provide access to
6609 the raw DSA values prior to ASN.1 encoding.
6612 *) Tweaks to Configure
6613 [Niels Poppe <niels@netbox.org>]
6615 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
6619 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
6622 *) New config option to avoid instructions that are illegal on the 80386.
6623 The default code is faster, but requires at least a 486.
6626 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
6627 SSL2_SERVER_VERSION (not used at all) macros, which are now the
6628 same as SSL2_VERSION anyway.
6631 *) New "-showcerts" option for s_client.
6634 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
6635 application. Various cleanups and fixes.
6638 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
6639 modify error routines to work internally. Add error codes and PBE init
6640 to library startup routines.
6643 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
6644 packing functions to asn1 and evp. Changed function names and error
6645 codes along the way.
6648 *) PKCS12 integration: and so it begins... First of several patches to
6649 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
6650 objects to objects.h
6653 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
6654 and display support for Thawte strong extranet extension.
6657 *) Add LinuxPPC support.
6658 [Jeff Dubrule <igor@pobox.org>]
6660 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
6661 bn_div_words in alpha.s.
6662 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
6664 *) Make sure the RSA OAEP test is skipped under -DRSAref because
6665 OAEP isn't supported when OpenSSL is built with RSAref.
6666 [Ulf Moeller <ulf@fitug.de>]
6668 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
6669 so they no longer are missing under -DNOPROTO.
6670 [Soren S. Jorvang <soren@t.dk>]
6673 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
6675 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
6676 doesn't work when the session is reused. Coming soon!
6679 *) Fix a security hole, that allows sessions to be reused in the wrong
6680 context thus bypassing client cert protection! All software that uses
6681 client certs and session caches in multiple contexts NEEDS PATCHING to
6682 allow session reuse! A fuller solution is in the works.
6683 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
6685 *) Some more source tree cleanups (removed obsolete files
6686 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
6687 permission on "config" script to be executable) and a fix for the INSTALL
6689 [Ulf Moeller <ulf@fitug.de>]
6691 *) Remove some legacy and erroneous uses of malloc, free instead of
6693 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
6695 *) Make rsa_oaep_test return non-zero on error.
6696 [Ulf Moeller <ulf@fitug.de>]
6698 *) Add support for native Solaris shared libraries. Configure
6699 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
6700 if someone would make that last step automatic.
6701 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
6703 *) ctx_size was not built with the right compiler during "make links". Fixed.
6706 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
6707 except NULL ciphers". This means the default cipher list will no longer
6708 enable NULL ciphers. They need to be specifically enabled e.g. with
6709 the string "DEFAULT:eNULL".
6712 *) Fix to RSA private encryption routines: if p < q then it would
6713 occasionally produce an invalid result. This will only happen with
6714 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
6717 *) Be less restrictive and allow also `perl util/perlpath.pl
6718 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
6719 because this way one can also use an interpreter named `perl5' (which is
6720 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
6721 installed as `perl').
6722 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
6724 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
6725 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
6727 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
6728 advapi32.lib to Win32 build and change the pem test comparision
6729 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
6730 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
6731 and crypto/des/ede_cbcm_enc.c.
6734 *) DES quad checksum was broken on big-endian architectures. Fixed.
6737 *) Comment out two functions in bio.h that aren't implemented. Fix up the
6738 Win32 test batch file so it (might) work again. The Win32 test batch file
6739 is horrible: I feel ill....
6742 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
6743 in e_os.h. Audit of header files to check ANSI and non ANSI
6744 sections: 10 functions were absent from non ANSI section and not exported
6745 from Windows DLLs. Fixed up libeay.num for new functions.
6748 *) Make `openssl version' output lines consistent.
6749 [Ralf S. Engelschall]
6751 *) Fix Win32 symbol export lists for BIO functions: Added
6752 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
6753 to ms/libeay{16,32}.def.
6754 [Ralf S. Engelschall]
6756 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
6757 fine under Unix and passes some trivial tests I've now added. But the
6758 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
6759 added to make sure no one expects that this stuff really works in the
6760 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
6761 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
6763 [Ralf S. Engelschall]
6765 *) Fix the generation of two part addresses in perl.
6766 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
6768 *) Add config entry for Linux on MIPS.
6769 [John Tobey <jtobey@channel1.com>]
6771 *) Make links whenever Configure is run, unless we are on Windoze.
6774 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
6775 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
6779 *) Add a useful kludge to allow package maintainers to specify compiler and
6780 other platforms details on the command line without having to patch the
6781 Configure script everytime: One now can use ``perl Configure
6782 <id>:<details>'', i.e. platform ids are allowed to have details appended
6783 to them (seperated by colons). This is treated as there would be a static
6784 pre-configured entry in Configure's %table under key <id> with value
6785 <details> and ``perl Configure <id>'' is called. So, when you want to
6786 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
6787 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
6788 now, which overrides the FreeBSD-elf entry on-the-fly.
6789 [Ralf S. Engelschall]
6791 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
6794 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
6795 on the `perl Configure ...' command line. This way one can compile
6796 OpenSSL libraries with Position Independent Code (PIC) which is needed
6797 for linking it into DSOs.
6798 [Ralf S. Engelschall]
6800 *) Remarkably, export ciphers were totally broken and no-one had noticed!
6804 *) Cleaned up the LICENSE document: The official contact for any license
6805 questions now is the OpenSSL core team under openssl-core@openssl.org.
6806 And add a paragraph about the dual-license situation to make sure people
6807 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
6808 to the OpenSSL toolkit.
6809 [Ralf S. Engelschall]
6811 *) General source tree makefile cleanups: Made `making xxx in yyy...'
6812 display consistent in the source tree and replaced `/bin/rm' by `rm'.
6813 Additonally cleaned up the `make links' target: Remove unnecessary
6814 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
6815 to speed processing and no longer clutter the display with confusing
6816 stuff. Instead only the actually done links are displayed.
6817 [Ralf S. Engelschall]
6819 *) Permit null encryption ciphersuites, used for authentication only. It used
6820 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
6821 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
6825 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
6826 signed attributes when verifying signatures (this would break them),
6827 the detached data encoding was wrong and public keys obtained using
6828 X509_get_pubkey() weren't freed.
6831 *) Add text documentation for the BUFFER functions. Also added a work around
6832 to a Win95 console bug. This was triggered by the password read stuff: the
6833 last character typed gets carried over to the next fread(). If you were
6834 generating a new cert request using 'req' for example then the last
6835 character of the passphrase would be CR which would then enter the first
6839 *) Added the new `Includes OpenSSL Cryptography Software' button as
6840 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
6841 button and can be used by applications based on OpenSSL to show the
6842 relationship to the OpenSSL project.
6843 [Ralf S. Engelschall]
6845 *) Remove confusing variables in function signatures in files
6846 ssl/ssl_lib.c and ssl/ssl.h.
6847 [Lennart Bong <lob@kulthea.stacken.kth.se>]
6849 *) Don't install bss_file.c under PREFIX/include/
6850 [Lennart Bong <lob@kulthea.stacken.kth.se>]
6852 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
6853 functions that return function pointers and has support for NT specific
6854 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
6855 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
6856 unsigned to signed types: this was killing the Win32 compile.
6859 *) Add new certificate file to stack functions,
6860 SSL_add_dir_cert_subjects_to_stack() and
6861 SSL_add_file_cert_subjects_to_stack(). These largely supplant
6862 SSL_load_client_CA_file(), and can be used to add multiple certs easily
6863 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
6864 This means that Apache-SSL and similar packages don't have to mess around
6865 to add as many CAs as they want to the preferred list.
6868 *) Experiment with doxygen documentation. Currently only partially applied to
6870 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
6871 openssl.doxy as the configuration file.
6874 *) Get rid of remaining C++-style comments which strict C compilers hate.
6875 [Ralf S. Engelschall, pointed out by Carlos Amengual]
6877 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
6878 compiled in by default: it has problems with large keys.
6881 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
6882 DH private keys and/or callback functions which directly correspond to
6883 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
6884 is needed for applications which have to configure certificates on a
6885 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
6887 For the RSA certificate situation is makes no difference, but
6888 for the DSA certificate situation this fixes the "no shared cipher"
6889 problem where the OpenSSL cipher selection procedure failed because the
6890 temporary keys were not overtaken from the context and the API provided
6891 no way to reconfigure them.
6892 The new functions now let applications reconfigure the stuff and they
6893 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
6894 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
6895 non-public-API function ssl_cert_instantiate() is used as a helper
6896 function and also to reduce code redundancy inside ssl_rsa.c.
6897 [Ralf S. Engelschall]
6899 *) Move s_server -dcert and -dkey options out of the undocumented feature
6900 area because they are useful for the DSA situation and should be
6901 recognized by the users.
6902 [Ralf S. Engelschall]
6904 *) Fix the cipher decision scheme for export ciphers: the export bits are
6905 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
6906 SSL_EXP_MASK. So, the original variable has to be used instead of the
6907 already masked variable.
6908 [Richard Levitte <levitte@stacken.kth.se>]
6910 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
6911 [Richard Levitte <levitte@stacken.kth.se>]
6913 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
6914 from `int' to `unsigned int' because it's a length and initialized by
6915 EVP_DigestFinal() which expects an `unsigned int *'.
6916 [Richard Levitte <levitte@stacken.kth.se>]
6918 *) Don't hard-code path to Perl interpreter on shebang line of Configure
6919 script. Instead use the usual Shell->Perl transition trick.
6920 [Ralf S. Engelschall]
6922 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
6923 (in addition to RSA certificates) to match the behaviour of `openssl dsa
6924 -noout -modulus' as it's already the case for `openssl rsa -noout
6925 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
6926 currently the public key is printed (a decision which was already done by
6927 `openssl dsa -modulus' in the past) which serves a similar purpose.
6928 Additionally the NO_RSA no longer completely removes the whole -modulus
6929 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
6931 [Ralf S. Engelschall]
6933 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
6934 BIO. See the source (crypto/evp/bio_ok.c) for more info.
6935 [Arne Ansper <arne@ats.cyber.ee>]
6937 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
6938 to be added. Now both 'req' and 'ca' can use new objects defined in the
6942 *) Add cool BIO that does syslog (or event log on NT).
6943 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
6945 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
6946 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
6947 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
6948 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
6951 *) Add preliminary config info for new extension code.
6954 *) Make RSA_NO_PADDING really use no padding.
6955 [Ulf Moeller <ulf@fitug.de>]
6957 *) Generate errors when private/public key check is done.
6960 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
6961 for some CRL extensions and new objects added.
6964 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
6965 key usage extension and fuller support for authority key id.
6968 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
6969 padding method for RSA, which is recommended for new applications in PKCS
6970 #1 v2.0 (RFC 2437, October 1998).
6971 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
6972 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
6973 against Bleichbacher's attack on RSA.
6974 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
6977 *) Updates to the new SSL compression code
6978 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
6980 *) Fix so that the version number in the master secret, when passed
6981 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
6982 (because the server will not accept higher), that the version number
6983 is 0x03,0x01, not 0x03,0x00
6984 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
6986 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
6987 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
6988 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
6991 *) Support for RAW extensions where an arbitrary extension can be
6992 created by including its DER encoding. See apps/openssl.cnf for
6996 *) Make sure latest Perl versions don't interpret some generated C array
6997 code as Perl array code in the crypto/err/err_genc.pl script.
6998 [Lars Weber <3weber@informatik.uni-hamburg.de>]
7000 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
7001 not many people have the assembler. Various Win32 compilation fixes and
7002 update to the INSTALL.W32 file with (hopefully) more accurate Win32
7006 *) Modify configure script 'Configure' to automatically create crypto/date.h
7007 file under Win32 and also build pem.h from pem.org. New script
7008 util/mkfiles.pl to create the MINFO file on environments that can't do a
7009 'make files': perl util/mkfiles.pl >MINFO should work.
7012 *) Major rework of DES function declarations, in the pursuit of correctness
7013 and purity. As a result, many evil casts evaporated, and some weirdness,
7014 too. You may find this causes warnings in your code. Zapping your evil
7015 casts will probably fix them. Mostly.
7018 *) Fix for a typo in asn1.h. Bug fix to object creation script
7019 obj_dat.pl. It considered a zero in an object definition to mean
7020 "end of object": none of the objects in objects.h have any zeros
7021 so it wasn't spotted.
7022 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
7024 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
7025 Masking (CBCM). In the absence of test vectors, the best I have been able
7026 to do is check that the decrypt undoes the encrypt, so far. Send me test
7027 vectors if you have them.
7030 *) Correct calculation of key length for export ciphers (too much space was
7031 allocated for null ciphers). This has not been tested!
7034 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
7035 message is now correct (it understands "crypto" and "ssl" on its
7036 command line). There is also now an "update" option. This will update
7037 the util/ssleay.num and util/libeay.num files with any new functions.
7039 perl util/mkdef.pl crypto ssl update
7040 it will update them.
7043 *) Overhauled the Perl interface (perl/*):
7044 - ported BN stuff to OpenSSL's different BN library
7045 - made the perl/ source tree CVS-aware
7046 - renamed the package from SSLeay to OpenSSL (the files still contain
7047 their history because I've copied them in the repository)
7048 - removed obsolete files (the test scripts will be replaced
7049 by better Test::Harness variants in the future)
7050 [Ralf S. Engelschall]
7052 *) First cut for a very conservative source tree cleanup:
7053 1. merge various obsolete readme texts into doc/ssleay.txt
7054 where we collect the old documents and readme texts.
7055 2. remove the first part of files where I'm already sure that we no
7056 longer need them because of three reasons: either they are just temporary
7057 files which were left by Eric or they are preserved original files where
7058 I've verified that the diff is also available in the CVS via "cvs diff
7059 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
7060 the crypto/md/ stuff).
7061 [Ralf S. Engelschall]
7063 *) More extension code. Incomplete support for subject and issuer alt
7064 name, issuer and authority key id. Change the i2v function parameters
7065 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
7066 what that's for :-) Fix to ASN1 macro which messed up
7067 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
7070 *) Preliminary support for ENUMERATED type. This is largely copied from the
7074 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
7075 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7077 *) Make sure `make rehash' target really finds the `openssl' program.
7078 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7080 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
7081 like to hear about it if this slows down other processors.
7084 *) Add CygWin32 platform information to Configure script.
7085 [Alan Batie <batie@aahz.jf.intel.com>]
7087 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
7088 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
7090 *) New program nseq to manipulate netscape certificate sequences
7093 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
7097 *) Fixes to BN code. Previously the default was to define BN_RECURSION
7098 but the BN code had some problems that would cause failures when
7099 doing certificate verification and some other functions.
7100 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7102 *) Add ASN1 and PEM code to support netscape certificate sequences.
7105 *) Add ASN1 and PEM code to support netscape certificate sequences.
7108 *) Add several PKIX and private extended key usage OIDs.
7111 *) Modify the 'ca' program to handle the new extension code. Modify
7112 openssl.cnf for new extension format, add comments.
7115 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
7116 and add a sample to openssl.cnf so req -x509 now adds appropriate
7120 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
7121 error code, add initial support to X509_print() and x509 application.
7124 *) Takes a deep breath and start addding X509 V3 extension support code. Add
7125 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
7126 stuff is currently isolated and isn't even compiled yet.
7129 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
7130 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
7131 Removed the versions check from X509 routines when loading extensions:
7132 this allows certain broken certificates that don't set the version
7133 properly to be processed.
7136 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
7137 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
7138 can still be regenerated with "make depend".
7141 *) Spelling mistake in C version of CAST-128.
7142 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
7144 *) Changes to the error generation code. The perl script err-code.pl
7145 now reads in the old error codes and retains the old numbers, only
7146 adding new ones if necessary. It also only changes the .err files if new
7147 codes are added. The makefiles have been modified to only insert errors
7148 when needed (to avoid needlessly modifying header files). This is done
7149 by only inserting errors if the .err file is newer than the auto generated
7150 C file. To rebuild all the error codes from scratch (the old behaviour)
7151 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
7152 or delete all the .err files.
7155 *) CAST-128 was incorrectly implemented for short keys. The C version has
7156 been fixed, but is untested. The assembler versions are also fixed, but
7157 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
7158 to regenerate it if needed.
7159 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
7160 Hagino <itojun@kame.net>]
7162 *) File was opened incorrectly in randfile.c.
7163 [Ulf Möller <ulf@fitug.de>]
7165 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
7166 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
7167 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
7168 al: it's just almost always a UTCTime. Note this patch adds new error
7169 codes so do a "make errors" if there are problems.
7172 *) Correct Linux 1 recognition in config.
7173 [Ulf Möller <ulf@fitug.de>]
7175 *) Remove pointless MD5 hash when using DSA keys in ca.
7176 [Anonymous <nobody@replay.com>]
7178 *) Generate an error if given an empty string as a cert directory. Also
7179 generate an error if handed NULL (previously returned 0 to indicate an
7180 error, but didn't set one).
7181 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
7183 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
7186 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
7187 parameters. This was causing a warning which killed off the Win32 compile.
7190 *) Remove C++ style comments from crypto/bn/bn_local.h.
7191 [Neil Costigan <neil.costigan@celocom.com>]
7193 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
7194 based on a text string, looking up short and long names and finally
7195 "dot" format. The "dot" format stuff didn't work. Added new function
7196 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
7197 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
7198 OID is not part of the table.
7201 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
7202 X509_LOOKUP_by_alias().
7205 *) Sort openssl functions by name.
7208 *) Get the gendsa program working (hopefully) and add it to app list. Remove
7209 encryption from sample DSA keys (in case anyone is interested the password
7213 *) Make _all_ *_free functions accept a NULL pointer.
7214 [Frans Heymans <fheymans@isaserver.be>]
7216 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
7218 [Anonymous <nobody@replay.com>]
7220 *) s_server should send the CAfile as acceptable CAs, not its own cert.
7221 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
7223 *) Don't blow it for numeric -newkey arguments to apps/req.
7224 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
7226 *) Temp key "for export" tests were wrong in s3_srvr.c.
7227 [Anonymous <nobody@replay.com>]
7229 *) Add prototype for temp key callback functions
7230 SSL_CTX_set_tmp_{rsa,dh}_callback().
7233 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
7234 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
7237 *) X509_name_add_entry() freed the wrong thing after an error.
7238 [Arne Ansper <arne@ats.cyber.ee>]
7240 *) rsa_eay.c would attempt to free a NULL context.
7241 [Arne Ansper <arne@ats.cyber.ee>]
7243 *) BIO_s_socket() had a broken should_retry() on Windoze.
7244 [Arne Ansper <arne@ats.cyber.ee>]
7246 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
7247 [Arne Ansper <arne@ats.cyber.ee>]
7249 *) Make sure the already existing X509_STORE->depth variable is initialized
7250 in X509_STORE_new(), but document the fact that this variable is still
7251 unused in the certificate verification process.
7252 [Ralf S. Engelschall]
7254 *) Fix the various library and apps files to free up pkeys obtained from
7255 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
7258 *) Fix reference counting in X509_PUBKEY_get(). This makes
7259 demos/maurice/example2.c work, amongst others, probably.
7260 [Steve Henson and Ben Laurie]
7262 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
7263 `openssl' and second, the shortcut symlinks for the `openssl <command>'
7264 are no longer created. This way we have a single and consistent command
7265 line interface `openssl <command>', similar to `cvs <command>'.
7266 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
7268 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
7269 BIT STRING wrapper always have zero unused bits.
7272 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
7275 *) Make the top-level INSTALL documentation easier to understand.
7278 *) Makefiles updated to exit if an error occurs in a sub-directory
7279 make (including if user presses ^C) [Paul Sutton]
7281 *) Make Montgomery context stuff explicit in RSA data structure.
7284 *) Fix build order of pem and err to allow for generated pem.h.
7287 *) Fix renumbering bug in X509_NAME_delete_entry().
7290 *) Enhanced the err-ins.pl script so it makes the error library number
7291 global and can add a library name. This is needed for external ASN1 and
7292 other error libraries.
7295 *) Fixed sk_insert which never worked properly.
7298 *) Fix ASN1 macros so they can handle indefinite length construted
7299 EXPLICIT tags. Some non standard certificates use these: they can now
7303 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
7304 into a single doc/ssleay.txt bundle. This way the information is still
7305 preserved but no longer messes up this directory. Now it's new room for
7306 the new set of documenation files.
7307 [Ralf S. Engelschall]
7309 *) SETs were incorrectly DER encoded. This was a major pain, because they
7310 shared code with SEQUENCEs, which aren't coded the same. This means that
7311 almost everything to do with SETs or SEQUENCEs has either changed name or
7312 number of arguments.
7313 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
7315 *) Fix test data to work with the above.
7318 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
7319 was already fixed by Eric for 0.9.1 it seems.
7320 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
7322 *) Autodetect FreeBSD3.
7325 *) Fix various bugs in Configure. This affects the following platforms:
7329 unixware-2.0-pentium
7333 *) Eliminate generated files from CVS. Reorder tests to regenerate files
7334 before they are needed.
7337 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
7341 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
7343 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
7344 changed SSLeay to OpenSSL in version strings.
7345 [Ralf S. Engelschall]
7347 *) Some fixups to the top-level documents.
7350 *) Fixed the nasty bug where rsaref.h was not found under compile-time
7351 because the symlink to include/ was missing.
7352 [Ralf S. Engelschall]
7354 *) Incorporated the popular no-RSA/DSA-only patches
7355 which allow to compile a RSA-free SSLeay.
7356 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
7358 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
7359 when "ssleay" is still not found.
7360 [Ralf S. Engelschall]
7362 *) Added more platforms to Configure: Cray T3E, HPUX 11,
7363 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
7365 *) Updated the README file.
7366 [Ralf S. Engelschall]
7368 *) Added various .cvsignore files in the CVS repository subdirs
7369 to make a "cvs update" really silent.
7370 [Ralf S. Engelschall]
7372 *) Recompiled the error-definition header files and added
7373 missing symbols to the Win32 linker tables.
7374 [Ralf S. Engelschall]
7376 *) Cleaned up the top-level documents;
7377 o new files: CHANGES and LICENSE
7378 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
7379 o merged COPYRIGHT into LICENSE
7380 o removed obsolete TODO file
7381 o renamed MICROSOFT to INSTALL.W32
7382 [Ralf S. Engelschall]
7384 *) Removed dummy files from the 0.9.1b source tree:
7385 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
7386 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
7387 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
7388 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
7389 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
7390 [Ralf S. Engelschall]
7392 *) Added various platform portability fixes.
7395 *) The Genesis of the OpenSSL rpject:
7396 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
7397 Young and Tim J. Hudson created while they were working for C2Net until
7399 [The OpenSSL Project]
7402 Changes between 0.9.0b and 0.9.1b [not released]
7404 *) Updated a few CA certificates under certs/
7407 *) Changed some BIGNUM api stuff.
7410 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
7411 DGUX x86, Linux Alpha, etc.
7414 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
7415 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
7419 *) Add -strparse option to asn1pars program which parses nested
7421 [Dr Stephen Henson <shenson@bigfoot.com>]
7423 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
7426 *) DSA fix for "ca" program.
7429 *) Added "-genkey" option to "dsaparam" program.
7432 *) Added RIPE MD160 (rmd160) message digest.
7435 *) Added -a (all) option to "ssleay version" command.
7438 *) Added PLATFORM define which is the id given to Configure.
7441 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
7444 *) Extended the ASN.1 parser routines.
7447 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
7450 *) Added a BN_CTX to the BN library.
7453 *) Fixed the weak key values in DES library
7456 *) Changed API in EVP library for cipher aliases.
7459 *) Added support for RC2/64bit cipher.
7462 *) Converted the lhash library to the crypto/mem.c functions.
7465 *) Added more recognized ASN.1 object ids.
7468 *) Added more RSA padding checks for SSL/TLS.
7471 *) Added BIO proxy/filter functionality.
7474 *) Added extra_certs to SSL_CTX which can be used
7475 send extra CA certificates to the client in the CA cert chain sending
7476 process. It can be configured with SSL_CTX_add_extra_chain_cert().
7479 *) Now Fortezza is denied in the authentication phase because
7480 this is key exchange mechanism is not supported by SSLeay at all.
7483 *) Additional PKCS1 checks.
7486 *) Support the string "TLSv1" for all TLS v1 ciphers.
7489 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
7490 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
7493 *) Fixed a few memory leaks.
7496 *) Fixed various code and comment typos.
7499 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
7500 bytes sent in the client random.
7501 [Edward Bishop <ebishop@spyglass.com>]