5 Changes between 0.9.7f and 0.9.8 [xx XXX xxxx]
7 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
8 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
11 *) Remove buggy and incompletet DH cert support from
12 ssl/ssl_rsa.c and ssl/s3_both.c
15 *) Use SHA-1 instead of MD5 as the default digest algorithm for
16 the apps/openssl applications.
19 *) Compile clean with "-Wall -Wmissing-prototypes
20 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
21 DEBUG_SAFESTACK must also be set.
24 *) Change ./Configure so that certain algorithms can be disabled by default.
25 The new counterpiece to "no-xxx" is "enable-xxx".
27 The patented RC5 and MDC2 algorithms will now be disabled unless
28 "enable-rc5" and "enable-mdc2", respectively, are specified.
30 (IDEA remains enabled despite being patented. This is because IDEA
31 is frequently required for interoperability, and there is no license
32 fee for non-commercial use. As before, "no-idea" can be used to
33 avoid this algorithm.)
37 *) Add processing of proxy certificates (see RFC 3820). This work was
38 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
39 EGEE (Enabling Grids for E-science in Europe).
42 *) RC4 performance overhaul on modern architectures/implementations, such
43 as Intel P4, IA-64 and AMD64.
46 *) New utility extract-section.pl. This can be used specify an alternative
47 section number in a pod file instead of having to treat each file as
48 a separate case in Makefile. This can be done by adding two lines to the
51 =for comment openssl_section:XXX
53 The blank line is mandatory.
57 *) New arguments -certform, -keyform and -pass for s_client and s_server
58 to allow alternative format key and certificate files and passphrase
62 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
63 update associated structures and add various utility functions.
65 Add new policy related verify parameters, include policy checking in
66 standard verify code. Enhance 'smime' application with extra parameters
67 to support policy checking and print out.
70 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
71 Nehemiah processors. These extensions support AES encryption in hardware
72 as well as RNG (though RNG support is currently disabled).
73 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
75 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
78 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
79 [Andy Polyakov and a number of other people]
81 *) Improved PowerPC platform support. Most notably BIGNUM assembler
82 implementation contributed by IBM.
83 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
85 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
86 exponent rather than 'unsigned long'. There is a corresponding change to
87 the new 'rsa_keygen' element of the RSA_METHOD structure.
88 [Jelte Jansen, Geoff Thorpe]
90 *) Functionality for creating the initial serial number file is now
91 moved from CA.pl to the 'ca' utility with a new option -create_serial.
93 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
94 number file to 1, which is bound to cause problems. To avoid
95 the problems while respecting compatibility between different 0.9.7
96 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
97 CA.pl for serial number initialization. With the new release 0.9.8,
98 we can fix the problem directly in the 'ca' utility.)
101 *) Reduced header interdepencies by declaring more opaque objects in
102 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
103 give fewer recursive includes, which could break lazy source code - so
104 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
105 developers should define this symbol when building and using openssl to
106 ensure they track the recommended behaviour, interfaces, [etc], but
107 backwards-compatible behaviour prevails when this isn't defined.
110 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
113 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
114 This will generate a random key of the appropriate length based on the
115 cipher context. The EVP_CIPHER can provide its own random key generation
116 routine to support keys of a specific form. This is used in the des and
117 3des routines to generate a key of the correct parity. Update S/MIME
118 code to use new functions and hence generate correct parity DES keys.
119 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
120 valid (weak or incorrect parity).
123 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
124 as looking them up. This is useful when the verified structure may contain
125 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
126 present unless the new PKCS7_NO_CRL flag is asserted.
129 *) Extend ASN1 oid configuration module. It now additionally accepts the
132 shortName = some long name, 1.2.3.4
135 *) Reimplemented the BN_CTX implementation. There is now no more static
136 limitation on the number of variables it can handle nor the depth of the
137 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
138 information can now expand as required, and rather than having a single
139 static array of bignums, BN_CTX now uses a linked-list of such arrays
140 allowing it to expand on demand whilst maintaining the usefulness of
144 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
145 to allow all RSA operations to function using a single BN_CTX.
148 *) Preliminary support for certificate policy evaluation and checking. This
149 is initially intended to pass the tests outlined in "Conformance Testing
150 of Relying Party Client Certificate Path Processing Logic" v1.07.
153 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
154 remained unused and not that useful. A variety of other little bignum
155 tweaks and fixes have also been made continuing on from the audit (see
159 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
160 associated ASN1, EVP and SSL functions and old ASN1 macros.
163 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
164 and this should never fail. So the return value from the use of
165 BN_set_word() (which can fail due to needless expansion) is now deprecated;
166 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
169 *) BN_CTX_get() should return zero-valued bignums, providing the same
170 initialised value as BN_new().
171 [Geoff Thorpe, suggested by Ulf Möller]
173 *) Support for inhibitAnyPolicy certificate extension.
176 *) An audit of the BIGNUM code is underway, for which debugging code is
177 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
178 is considered valid when processing BIGNUMs, and causes execution to
179 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
180 further steps are taken to deliberately pollute unused data in BIGNUM
181 structures to try and expose faulty code further on. For now, openssl will
182 (in its default mode of operation) continue to tolerate the inconsistent
183 forms that it has tolerated in the past, but authors and packagers should
184 consider trying openssl and their own applications when compiled with
185 these debugging symbols defined. It will help highlight potential bugs in
186 their own code, and will improve the test coverage for OpenSSL itself. At
187 some point, these tighter rules will become openssl's default to improve
188 maintainability, though the assert()s and other overheads will remain only
189 in debugging configurations. See bn.h for more details.
190 [Geoff Thorpe, Nils Larsch, Ulf Möller]
192 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
193 that can only be obtained through BN_CTX_new() (which implicitly
194 initialises it). The presence of this function only made it possible
195 to overwrite an existing structure (and cause memory leaks).
198 *) Because of the callback-based approach for implementing LHASH as a
199 template type, lh_insert() adds opaque objects to hash-tables and
200 lh_doall() or lh_doall_arg() are typically used with a destructor callback
201 to clean up those corresponding objects before destroying the hash table
202 (and losing the object pointers). So some over-zealous constifications in
203 LHASH have been relaxed so that lh_insert() does not take (nor store) the
204 objects as "const" and the lh_doall[_arg] callback wrappers are not
205 prototyped to have "const" restrictions on the object pointers they are
206 given (and so aren't required to cast them away any more).
209 *) The tmdiff.h API was so ugly and minimal that our own timing utility
210 (speed) prefers to use its own implementation. The two implementations
211 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
212 its object type properly exposed (MS_TM) instead of casting to/from "char
213 *". This may still change yet if someone realises MS_TM and "ms_time_***"
214 aren't necessarily the greatest nomenclatures - but this is what was used
215 internally to the implementation so I've used that for now.
218 *) Ensure that deprecated functions do not get compiled when
219 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
220 the self-tests were still using deprecated key-generation functions so
221 these have been updated also.
224 *) Reorganise PKCS#7 code to separate the digest location functionality
225 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
226 New function PKCS7_set_digest() to set the digest type for PKCS#7
227 digestedData type. Add additional code to correctly generate the
228 digestedData type and add support for this type in PKCS7 initialization
232 *) New function PKCS7_set0_type_other() this initializes a PKCS7
233 structure of type "other".
236 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
237 sure the loop does correctly stop and breaking ("division by zero")
238 modulus operations are not performed. The (pre-generated) prime
239 table crypto/bn/bn_prime.h was already correct, but it could not be
240 re-generated on some platforms because of the "division by zero"
241 situation in the script.
242 [Ralf S. Engelschall]
244 *) Update support for ECC-based TLS ciphersuites according to
245 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
246 SHA-1 now is only used for "small" curves (where the
247 representation of a field element takes up to 24 bytes); for
248 larger curves, the field element resulting from ECDH is directly
249 used as premaster secret.
250 [Douglas Stebila (Sun Microsystems Laboratories)]
252 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
253 curve secp160r1 to the tests.
254 [Douglas Stebila (Sun Microsystems Laboratories)]
256 *) Add the possibility to load symbols globally with DSO.
257 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
259 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
260 control of the error stack.
263 *) Add support for STORE in ENGINE.
266 *) Add the STORE type. The intention is to provide a common interface
267 to certificate and key stores, be they simple file-based stores, or
268 HSM-type store, or LDAP stores, or...
269 NOTE: The code is currently UNTESTED and isn't really used anywhere.
272 *) Add a generic structure called OPENSSL_ITEM. This can be used to
273 pass a list of arguments to any function as well as provide a way
274 for a function to pass data back to the caller.
277 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
278 works like BUF_strdup() but can be used to duplicate a portion of
279 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
283 *) Add the function sk_find_ex() which works like sk_find(), but will
284 return an index to an element even if an exact match couldn't be
285 found. The index is guaranteed to point at the element where the
286 searched-for key would be inserted to preserve sorting order.
289 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
290 takes an extra flags argument for optional functionality. Currently,
291 the following flags are defined:
293 OBJ_BSEARCH_VALUE_ON_NOMATCH
294 This one gets OBJ_bsearch_ex() to return a pointer to the first
295 element where the comparing function returns a negative or zero
298 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
299 This one gets OBJ_bsearch_ex() to return a pointer to the first
300 element where the comparing function returns zero. This is useful
301 if there are more than one element where the comparing function
305 *) Make it possible to create self-signed certificates with 'openssl ca'
306 in such a way that the self-signed certificate becomes part of the
307 CA database and uses the same mechanisms for serial number generation
308 as all other certificate signing. The new flag '-selfsign' enables
309 this functionality. Adapt CA.sh and CA.pl.in.
312 *) Add functionality to check the public key of a certificate request
313 against a given private. This is useful to check that a certificate
314 request can be signed by that key (self-signing).
317 *) Make it possible to have multiple active certificates with the same
318 subject in the CA index file. This is done only if the keyword
319 'unique_subject' is set to 'no' in the main CA section (default
320 if 'CA_default') of the configuration file. The value is saved
321 with the database itself in a separate index attribute file,
322 named like the index file with '.attr' appended to the name.
325 *) Generate muti valued AVAs using '+' notation in config files for
329 *) Support for nameConstraints certificate extension.
332 *) Support for policyConstraints certificate extension.
335 *) Support for policyMappings certificate extension.
338 *) Make sure the default DSA_METHOD implementation only uses its
339 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
340 and change its own handlers to be NULL so as to remove unnecessary
341 indirection. This lets alternative implementations fallback to the
342 default implementation more easily.
345 *) Support for directoryName in GeneralName related extensions
349 *) Make it possible to link applications using Makefile.shared.
350 Make that possible even when linking against static libraries!
353 *) Support for single pass processing for S/MIME signing. This now
354 means that S/MIME signing can be done from a pipe, in addition
355 cleartext signing (multipart/signed type) is effectively streaming
356 and the signed data does not need to be all held in memory.
358 This is done with a new flag PKCS7_STREAM. When this flag is set
359 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
360 is done after the data is output (and digests calculated) in
364 *) Add full support for -rpath/-R, both in shared libraries and
365 applications, at least on the platforms where it's known how
369 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
370 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
371 will now compute a table of multiples of the generator that
372 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
373 faster (notably in the case of a single point multiplication,
375 [Nils Larsch, Bodo Moeller]
377 *) IPv6 support for certificate extensions. The various extensions
378 which use the IP:a.b.c.d can now take IPv6 addresses using the
379 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
383 *) Added an ENGINE that implements RSA by performing private key
384 exponentiations with the GMP library. The conversions to and from
385 GMP's mpz_t format aren't optimised nor are any montgomery forms
386 cached, and on x86 it appears OpenSSL's own performance has caught up.
387 However there are likely to be other architectures where GMP could
388 provide a boost. This ENGINE is not built in by default, but it can be
389 specified at Configure time and should be accompanied by the necessary
390 linker additions, eg;
391 ./config -DOPENSSL_USE_GMP -lgmp
394 *) "openssl engine" will not display ENGINE/DSO load failure errors when
395 testing availability of engines with "-t" - the old behaviour is
396 produced by increasing the feature's verbosity with "-tt".
399 *) ECDSA routines: under certain error conditions uninitialized BN objects
400 could be freed. Solution: make sure initialization is performed early
401 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
405 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
406 and DH_METHOD (eg. by ENGINE implementations) to override the normal
407 software implementations. For DSA and DH, parameter generation can
408 also be overriden by providing the appropriate method callbacks.
411 *) Change the "progress" mechanism used in key-generation and
412 primality testing to functions that take a new BN_GENCB pointer in
413 place of callback/argument pairs. The new API functions have "_ex"
414 postfixes and the older functions are reimplemented as wrappers for
415 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
416 declarations of the old functions to help (graceful) attempts to
417 migrate to the new functions. Also, the new key-generation API
418 functions operate on a caller-supplied key-structure and return
419 success/failure rather than returning a key or NULL - this is to
420 help make "keygen" another member function of RSA_METHOD etc.
422 Example for using the new callback interface:
424 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
428 BN_GENCB_set(&my_cb, my_callback, my_arg);
430 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
431 /* For the meaning of a, b in calls to my_callback(), see the
432 * documentation of the function that calls the callback.
433 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
434 * my_callback should return 1 if it wants BN_is_prime_ex()
435 * to continue, or 0 to stop.
440 *) Change the ZLIB compression method to be stateful, and make it
441 available to TLS with the number defined in
442 draft-ietf-tls-compression-04.txt.
445 *) Add the ASN.1 structures and functions for CertificatePair, which
446 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
448 CertificatePair ::= SEQUENCE {
449 forward [0] Certificate OPTIONAL,
450 reverse [1] Certificate OPTIONAL,
451 -- at least one of the pair shall be present -- }
453 Also implement the PEM functions to read and write certificate
454 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
456 This needed to be defined, mostly for the sake of the LDAP
457 attribute crossCertificatePair, but may prove useful elsewhere as
461 *) Make it possible to inhibit symlinking of shared libraries in
462 Makefile.shared, for Cygwin's sake.
465 *) Extend the BIGNUM API by creating new macros that behave like
468 void BN_set_sign(BIGNUM *a, int neg);
469 int BN_get_sign(const BIGNUM *a);
471 and avoid the need to access 'a->neg' directly in applications.
472 [Nils Larsch <nla@trustcenter.de>]
474 *) Implement fast modular reduction for pseudo-Mersenne primes
475 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
476 EC_GROUP_new_curve_GFp() will now automatically use this
478 [Nils Larsch <nla@trustcenter.de>]
480 *) Add new lock type (CRYPTO_LOCK_BN).
483 *) Change the ENGINE framework to automatically load engines
484 dynamically from specific directories unless they could be
485 found to already be built in or loaded. Move all the
486 current engines except for the cryptodev one to a new
488 The engines in engines/ are built as shared libraries if
489 the "shared" options was given to ./Configure or ./config.
490 Otherwise, they are inserted in libcrypto.a.
491 /usr/local/ssl/engines is the default directory for dynamic
492 engines, but that can be overriden at configure time through
493 the usual use of --prefix and/or --openssldir, and at run
494 time with the environment variable OPENSSL_ENGINES.
495 [Geoff Thorpe and Richard Levitte]
497 *) Add Makefile.shared, a helper makefile to build shared
498 libraries. Addapt Makefile.org.
501 *) Add version info to Win32 DLLs.
502 [Peter 'Luna' Runestig" <peter@runestig.com>]
504 *) Add new 'medium level' PKCS#12 API. Certificates and keys
505 can be added using this API to created arbitrary PKCS#12
506 files while avoiding the low level API.
508 New options to PKCS12_create(), key or cert can be NULL and
509 will then be omitted from the output file. The encryption
510 algorithm NIDs can be set to -1 for no encryption, the mac
511 iteration count can be set to 0 to omit the mac.
513 Enhance pkcs12 utility by making the -nokeys and -nocerts
514 options work when creating a PKCS#12 file. New option -nomac
515 to omit the mac, NONE can be set for an encryption algorithm.
516 New code is modified to use the enhanced PKCS12_create()
517 instead of the low level API.
520 *) Extend ASN1 encoder to support indefinite length constructed
521 encoding. This can output sequences tags and octet strings in
522 this form. Modify pk7_asn1.c to support indefinite length
523 encoding. This is experimental and needs additional code to
524 be useful, such as an ASN1 bio and some enhanced streaming
527 Extend template encode functionality so that tagging is passed
528 down to the template encoder.
531 *) Let 'openssl req' fail if an argument to '-newkey' is not
532 recognized instead of using RSA as a default.
535 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
536 As these are not official, they are not included in "ALL";
537 the "ECCdraft" ciphersuite group alias can be used to select them.
538 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
540 *) Add ECDH engine support.
541 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
543 *) Add ECDH in new directory crypto/ecdh/.
544 [Douglas Stebila (Sun Microsystems Laboratories)]
546 *) Let BN_rand_range() abort with an error after 100 iterations
547 without success (which indicates a broken PRNG).
550 *) Change BN_mod_sqrt() so that it verifies that the input value
551 is really the square of the return value. (Previously,
552 BN_mod_sqrt would show GIGO behaviour.)
555 *) Add named elliptic curves over binary fields from X9.62, SECG,
556 and WAP/WTLS; add OIDs that were still missing.
558 [Sheueling Chang Shantz and Douglas Stebila
559 (Sun Microsystems Laboratories)]
561 *) Extend the EC library for elliptic curves over binary fields
562 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
565 EC_GF2m_simple_method
569 EC_GROUP_new_curve_GF2m
570 EC_GROUP_set_curve_GF2m
571 EC_GROUP_get_curve_GF2m
572 EC_POINT_set_affine_coordinates_GF2m
573 EC_POINT_get_affine_coordinates_GF2m
574 EC_POINT_set_compressed_coordinates_GF2m
576 Point compression for binary fields is disabled by default for
577 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
580 As binary polynomials are represented as BIGNUMs, various members
581 of the EC_GROUP and EC_POINT data structures can be shared
582 between the implementations for prime fields and binary fields;
583 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
584 are essentially identical to their ..._GFp counterparts.
585 (For simplicity, the '..._GFp' prefix has been dropped from
586 various internal method names.)
588 An internal 'field_div' method (similar to 'field_mul' and
589 'field_sqr') has been added; this is used only for binary fields.
591 [Sheueling Chang Shantz and Douglas Stebila
592 (Sun Microsystems Laboratories)]
594 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
595 through methods ('mul', 'precompute_mult').
597 The generic implementations (now internally called 'ec_wNAF_mul'
598 and 'ec_wNAF_precomputed_mult') remain the default if these
599 methods are undefined.
601 [Sheueling Chang Shantz and Douglas Stebila
602 (Sun Microsystems Laboratories)]
604 *) New function EC_GROUP_get_degree, which is defined through
605 EC_METHOD. For curves over prime fields, this returns the bit
606 length of the modulus.
608 [Sheueling Chang Shantz and Douglas Stebila
609 (Sun Microsystems Laboratories)]
611 *) New functions EC_GROUP_dup, EC_POINT_dup.
612 (These simply call ..._new and ..._copy).
614 [Sheueling Chang Shantz and Douglas Stebila
615 (Sun Microsystems Laboratories)]
617 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
618 Polynomials are represented as BIGNUMs (where the sign bit is not
619 used) in the following functions [macros]:
622 BN_GF2m_sub [= BN_GF2m_add]
623 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
624 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
625 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
627 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
628 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
629 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
630 BN_GF2m_cmp [= BN_ucmp]
632 (Note that only the 'mod' functions are actually for fields GF(2^m).
633 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
635 For some functions, an the irreducible polynomial defining a
636 field can be given as an 'unsigned int[]' with strictly
637 decreasing elements giving the indices of those bits that are set;
638 i.e., p[] represents the polynomial
639 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
641 p[0] > p[1] > ... > p[k] = 0.
642 This applies to the following functions:
647 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
648 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
651 BN_GF2m_mod_solve_quad_arr
655 Conversion can be performed by the following functions:
660 bntest.c has additional tests for binary polynomial arithmetic.
662 Two implementations for BN_GF2m_mod_div() are available.
663 The default algorithm simply uses BN_GF2m_mod_inv() and
664 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
665 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
666 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
668 [Sheueling Chang Shantz and Douglas Stebila
669 (Sun Microsystems Laboratories)]
671 *) Add new error code 'ERR_R_DISABLED' that can be used when some
672 functionality is disabled at compile-time.
673 [Douglas Stebila <douglas.stebila@sun.com>]
675 *) Change default behaviour of 'openssl asn1parse' so that more
676 information is visible when viewing, e.g., a certificate:
678 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
679 mode the content of non-printable OCTET STRINGs is output in a
680 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
681 avoid the appearance of a printable string.
682 [Nils Larsch <nla@trustcenter.de>]
684 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
686 EC_GROUP_set_asn1_flag()
687 EC_GROUP_get_asn1_flag()
688 EC_GROUP_set_point_conversion_form()
689 EC_GROUP_get_point_conversion_form()
690 These control ASN1 encoding details:
691 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
692 has been set to OPENSSL_EC_NAMED_CURVE.
693 - Points are encoded in uncompressed form by default; options for
694 asn1_for are as for point2oct, namely
695 POINT_CONVERSION_COMPRESSED
696 POINT_CONVERSION_UNCOMPRESSED
697 POINT_CONVERSION_HYBRID
699 Also add 'seed' and 'seed_len' members to EC_GROUP with access
703 EC_GROUP_get_seed_len()
704 This is used only for ASN1 purposes (so far).
705 [Nils Larsch <nla@trustcenter.de>]
707 *) Add 'field_type' member to EC_METHOD, which holds the NID
708 of the appropriate field type OID. The new function
709 EC_METHOD_get_field_type() returns this value.
710 [Nils Larsch <nla@trustcenter.de>]
717 providing useful interfaces to EC_POINT_point2oct() and
718 EC_POINT_oct2point().
719 [Nils Larsch <nla@trustcenter.de>]
721 *) Change internals of the EC library so that the functions
722 EC_GROUP_set_generator()
723 EC_GROUP_get_generator()
725 EC_GROUP_get_cofactor()
726 are implemented directly in crypto/ec/ec_lib.c and not dispatched
727 to methods, which would lead to unnecessary code duplication when
728 adding different types of curves.
729 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
731 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
732 arithmetic, and such that modified wNAFs are generated
733 (which avoid length expansion in many cases).
736 *) Add a function EC_GROUP_check_discriminant() (defined via
737 EC_METHOD) that verifies that the curve discriminant is non-zero.
739 Add a function EC_GROUP_check() that makes some sanity tests
740 on a EC_GROUP, its generator and order. This includes
741 EC_GROUP_check_discriminant().
742 [Nils Larsch <nla@trustcenter.de>]
744 *) Add ECDSA in new directory crypto/ecdsa/.
746 Add applications 'openssl ecparam' and 'openssl ecdsa'
747 (these are based on 'openssl dsaparam' and 'openssl dsa').
749 ECDSA support is also included in various other files across the
750 library. Most notably,
751 - 'openssl req' now has a '-newkey ecdsa:file' option;
752 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
753 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
754 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
755 them suitable for ECDSA where domain parameters must be
756 extracted before the specific public key;
757 - ECDSA engine support has been added.
758 [Nils Larsch <nla@trustcenter.de>]
760 *) Include some named elliptic curves, and add OIDs from X9.62,
761 SECG, and WAP/WTLS. Each curve can be obtained from the new
763 EC_GROUP_new_by_nid(),
764 and the list of available named curves can be obtained with
765 EC_get_builtin_curves().
766 Also add a 'curve_name' member to EC_GROUP objects, which can be
770 [Nils Larsch <nla@trustcenter.de, Bodo Moeller]
772 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
773 was actually never needed) and in BN_mul(). The removal in BN_mul()
774 required a small change in bn_mul_part_recursive() and the addition
775 of the functions bn_cmp_part_words(), bn_sub_part_words() and
776 bn_add_part_words(), which do the same thing as bn_cmp_words(),
777 bn_sub_words() and bn_add_words() except they take arrays with
781 Changes between 0.9.7f and 0.9.7g [XX xxx xxxx]
783 *) Fixes for newer kerberos headers. NB: the casts are needed because
784 the 'length' field is signed on one version and unsigned on another
785 with no (?) obvious way to tell the difference, without these VC++
786 complains. Also the "definition" of FAR (blank) is no longer included
787 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
788 some needed definitions.
791 *) Undo Cygwin change.
794 *) Added support for proxy certificates according to RFC 3820.
795 Because they may be a security thread to unaware applications,
796 they must be explicitely allowed in run-time. See
797 docs/HOWTO/proxy_certificates.txt for further information.
800 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
802 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
803 server and client random values. Previously
804 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
805 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
807 This change has negligible security impact because:
809 1. Server and client random values still have 24 bytes of pseudo random
812 2. Server and client random values are sent in the clear in the initial
815 3. The master secret is derived using the premaster secret (48 bytes in
816 size for static RSA ciphersuites) as well as client server and random
819 The OpenSSL team would like to thank the UK NISCC for bringing this issue
822 [Stephen Henson, reported by UK NISCC]
824 *) Use Windows randomness collection on Cygwin.
827 *) Fix hang in EGD/PRNGD query when communication socket is closed
828 prematurely by EGD/PRNGD.
829 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
831 *) Prompt for pass phrases when appropriate for PKCS12 input format.
834 *) Back-port of selected performance improvements from development
835 branch, as well as improved support for PowerPC platforms.
838 *) Add lots of checks for memory allocation failure, error codes to indicate
839 failure and freeing up memory if a failure occurs.
840 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
842 *) Add new -passin argument to dgst.
845 *) Perform some character comparisons of different types in X509_NAME_cmp:
846 this is needed for some certificates that reencode DNs into UTF8Strings
847 (in violation of RFC3280) and can't or wont issue name rollover
851 *) Make an explicit check during certificate validation to see that
852 the CA setting in each certificate on the chain is correct. As a
853 side effect always do the following basic checks on extensions,
854 not just when there's an associated purpose to the check:
856 - if there is an unhandled critical extension (unless the user
857 has chosen to ignore this fault)
858 - if the path length has been exceeded (if one is set at all)
859 - that certain extensions fit the associated purpose (if one has
863 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
865 *) Avoid a race condition when CRLs are checked in a multi threaded
866 environment. This would happen due to the reordering of the revoked
867 entries during signature checking and serial number lookup. Now the
868 encoding is cached and the serial number sort performed under a lock.
869 Add new STACK function sk_is_sorted().
872 *) Add Delta CRL to the extension code.
875 *) Various fixes to s3_pkt.c so alerts are sent properly.
876 [David Holmes <d.holmes@f5.com>]
878 *) Reduce the chances of duplicate issuer name and serial numbers (in
879 violation of RFC3280) using the OpenSSL certificate creation utilities.
880 This is done by creating a random 64 bit value for the initial serial
881 number when a serial number file is created or when a self signed
882 certificate is created using 'openssl req -x509'. The initial serial
883 number file is created using 'openssl x509 -next_serial' in CA.pl
884 rather than being initialized to 1.
887 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
889 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
890 by using the Codenomicon TLS Test Tool (CAN-2004-0079)
891 [Joe Orton, Steve Henson]
893 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
895 [Joe Orton, Steve Henson]
897 *) Make it possible to have multiple active certificates with the same
898 subject in the CA index file. This is done only if the keyword
899 'unique_subject' is set to 'no' in the main CA section (default
900 if 'CA_default') of the configuration file. The value is saved
901 with the database itself in a separate index attribute file,
902 named like the index file with '.attr' appended to the name.
905 *) X509 verify fixes. Disable broken certificate workarounds when
906 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
907 keyUsage extension present. Don't accept CRLs with unhandled critical
908 extensions: since verify currently doesn't process CRL extensions this
909 rejects a CRL with *any* critical extensions. Add new verify error codes
913 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
914 A clarification of RFC2560 will require the use of OCTET STRINGs and
915 some implementations cannot handle the current raw format. Since OpenSSL
916 copies and compares OCSP nonces as opaque blobs without any attempt at
917 parsing them this should not create any compatibility issues.
920 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
921 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
922 this HMAC (and other) operations are several times slower than OpenSSL
926 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
927 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
929 *) Use the correct content when signing type "other".
932 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
934 *) Fix various bugs revealed by running the NISCC test suite:
936 Stop out of bounds reads in the ASN1 code when presented with
937 invalid tags (CAN-2003-0543 and CAN-2003-0544).
939 Free up ASN1_TYPE correctly if ANY type is invalid (CAN-2003-0545).
941 If verify callback ignores invalid public key errors don't try to check
942 certificate signature with the NULL public key.
946 *) New -ignore_err option in ocsp application to stop the server
947 exiting on the first error in a request.
950 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
951 if the server requested one: as stated in TLS 1.0 and SSL 3.0
955 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
956 extra data after the compression methods not only for TLS 1.0
957 but also for SSL 3.0 (as required by the specification).
958 [Bodo Moeller; problem pointed out by Matthias Loepfe]
960 *) Change X509_certificate_type() to mark the key as exported/exportable
961 when it's 512 *bits* long, not 512 bytes.
964 *) Change AES_cbc_encrypt() so it outputs exact multiple of
965 blocks during encryption.
968 *) Various fixes to base64 BIO and non blocking I/O. On write
969 flushes were not handled properly if the BIO retried. On read
970 data was not being buffered properly and had various logic bugs.
971 This also affects blocking I/O when the data being decoded is a
975 *) Various S/MIME bugfixes and compatibility changes:
976 output correct application/pkcs7 MIME type if
977 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
978 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
979 of files as .eml work). Correctly handle very long lines in MIME
983 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
985 *) Countermeasure against the Klima-Pokorny-Rosa extension of
986 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
987 a protocol version number mismatch like a decryption error
988 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
991 *) Turn on RSA blinding by default in the default implementation
992 to avoid a timing attack. Applications that don't want it can call
993 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
994 They would be ill-advised to do so in most cases.
995 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
997 *) Change RSA blinding code so that it works when the PRNG is not
998 seeded (in this case, the secret RSA exponent is abused as
999 an unpredictable seed -- if it is not unpredictable, there
1000 is no point in blinding anyway). Make RSA blinding thread-safe
1001 by remembering the creator's thread ID in rsa->blinding and
1002 having all other threads use local one-time blinding factors
1003 (this requires more computation than sharing rsa->blinding, but
1004 avoids excessive locking; and if an RSA object is not shared
1005 between threads, blinding will still be very fast).
1008 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
1009 ENGINE as defaults for all supported algorithms irrespective of
1010 the 'flags' parameter. 'flags' is now honoured, so applications
1011 should make sure they are passing it correctly.
1014 *) Target "mingw" now allows native Windows code to be generated in
1015 the Cygwin environment as well as with the MinGW compiler.
1018 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
1020 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
1021 via timing by performing a MAC computation even if incorrrect
1022 block cipher padding has been found. This is a countermeasure
1023 against active attacks where the attacker has to distinguish
1024 between bad padding and a MAC verification error. (CAN-2003-0078)
1026 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
1027 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
1028 Martin Vuagnoux (EPFL, Ilion)]
1030 *) Make the no-err option work as intended. The intention with no-err
1031 is not to have the whole error stack handling routines removed from
1032 libcrypto, it's only intended to remove all the function name and
1033 reason texts, thereby removing some of the footprint that may not
1034 be interesting if those errors aren't displayed anyway.
1036 NOTE: it's still possible for any application or module to have it's
1037 own set of error texts inserted. The routines are there, just not
1038 used by default when no-err is given.
1041 *) Add support for FreeBSD on IA64.
1042 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
1044 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
1045 Kerberos function mit_des_cbc_cksum(). Before this change,
1046 the value returned by DES_cbc_cksum() was like the one from
1047 mit_des_cbc_cksum(), except the bytes were swapped.
1048 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
1050 *) Allow an application to disable the automatic SSL chain building.
1051 Before this a rather primitive chain build was always performed in
1052 ssl3_output_cert_chain(): an application had no way to send the
1053 correct chain if the automatic operation produced an incorrect result.
1055 Now the chain builder is disabled if either:
1057 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
1059 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
1061 The reasoning behind this is that an application would not want the
1062 auto chain building to take place if extra chain certificates are
1063 present and it might also want a means of sending no additional
1064 certificates (for example the chain has two certificates and the
1068 *) Add the possibility to build without the ENGINE framework.
1069 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1071 *) Under Win32 gmtime() can return NULL: check return value in
1072 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
1075 *) DSA routines: under certain error conditions uninitialized BN objects
1076 could be freed. Solution: make sure initialization is performed early
1077 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
1078 Nils Larsch <nla@trustcenter.de> via PR#459)
1081 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
1082 checked on reconnect on the client side, therefore session resumption
1083 could still fail with a "ssl session id is different" error. This
1084 behaviour is masked when SSL_OP_ALL is used due to
1085 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
1086 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1087 followup to PR #377.
1090 *) IA-32 assembler support enhancements: unified ELF targets, support
1091 for SCO/Caldera platforms, fix for Cygwin shared build.
1094 *) Add support for FreeBSD on sparc64. As a consequence, support for
1095 FreeBSD on non-x86 processors is separate from x86 processors on
1096 the config script, much like the NetBSD support.
1097 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
1099 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
1101 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
1104 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
1105 code (06) was taken as the first octet of the session ID and the last
1106 octet was ignored consequently. As a result SSLv2 client side session
1107 caching could not have worked due to the session ID mismatch between
1109 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1113 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
1114 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
1118 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
1119 seems that in spite of existing for more than a year, many application
1120 author have done nothing to provide the necessary callbacks, which
1121 means that this particular engine will not work properly anywhere.
1122 This is a very unfortunate situation which forces us, in the name
1123 of usability, to give the hw_ncipher.c a static lock, which is part
1125 NOTE: This is for the 0.9.7 series ONLY. This hack will never
1126 appear in 0.9.8 or later. We EXPECT application authors to have
1127 dealt properly with this when 0.9.8 is released (unless we actually
1128 make such changes in the libcrypto locking code that changes will
1129 have to be made anyway).
1132 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
1133 octets have been read, EOF or an error occurs. Without this change
1134 some truncated ASN1 structures will not produce an error.
1137 *) Disable Heimdal support, since it hasn't been fully implemented.
1138 Still give the possibility to force the use of Heimdal, but with
1139 warnings and a request that patches get sent to openssl-dev.
1142 *) Add the VC-CE target, introduce the WINCE sysname, and add
1143 INSTALL.WCE and appropriate conditionals to make it build.
1144 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1146 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
1147 cygssl-x.y.z.dll, where x, y and z are the major, minor and
1148 edit numbers of the version.
1149 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
1151 *) Introduce safe string copy and catenation functions
1152 (BUF_strlcpy() and BUF_strlcat()).
1153 [Ben Laurie (CHATS) and Richard Levitte]
1155 *) Avoid using fixed-size buffers for one-line DNs.
1156 [Ben Laurie (CHATS)]
1158 *) Add BUF_MEM_grow_clean() to avoid information leakage when
1159 resizing buffers containing secrets, and use where appropriate.
1160 [Ben Laurie (CHATS)]
1162 *) Avoid using fixed size buffers for configuration file location.
1163 [Ben Laurie (CHATS)]
1165 *) Avoid filename truncation for various CA files.
1166 [Ben Laurie (CHATS)]
1168 *) Use sizeof in preference to magic numbers.
1169 [Ben Laurie (CHATS)]
1171 *) Avoid filename truncation in cert requests.
1172 [Ben Laurie (CHATS)]
1174 *) Add assertions to check for (supposedly impossible) buffer
1176 [Ben Laurie (CHATS)]
1178 *) Don't cache truncated DNS entries in the local cache (this could
1179 potentially lead to a spoofing attack).
1180 [Ben Laurie (CHATS)]
1182 *) Fix various buffers to be large enough for hex/decimal
1183 representations in a platform independent manner.
1184 [Ben Laurie (CHATS)]
1186 *) Add CRYPTO_realloc_clean() to avoid information leakage when
1187 resizing buffers containing secrets, and use where appropriate.
1188 [Ben Laurie (CHATS)]
1190 *) Add BIO_indent() to avoid much slightly worrying code to do
1192 [Ben Laurie (CHATS)]
1194 *) Convert sprintf()/BIO_puts() to BIO_printf().
1195 [Ben Laurie (CHATS)]
1197 *) buffer_gets() could terminate with the buffer only half
1199 [Ben Laurie (CHATS)]
1201 *) Add assertions to prevent user-supplied crypto functions from
1202 overflowing internal buffers by having large block sizes, etc.
1203 [Ben Laurie (CHATS)]
1205 *) New OPENSSL_assert() macro (similar to assert(), but enabled
1207 [Ben Laurie (CHATS)]
1209 *) Eliminate unused copy of key in RC4.
1210 [Ben Laurie (CHATS)]
1212 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
1213 [Ben Laurie (CHATS)]
1215 *) Fix off-by-one error in EGD path.
1216 [Ben Laurie (CHATS)]
1218 *) If RANDFILE path is too long, ignore instead of truncating.
1219 [Ben Laurie (CHATS)]
1221 *) Eliminate unused and incorrectly sized X.509 structure
1223 [Ben Laurie (CHATS)]
1225 *) Eliminate unused and dangerous function knumber().
1226 [Ben Laurie (CHATS)]
1228 *) Eliminate unused and dangerous structure, KSSL_ERR.
1229 [Ben Laurie (CHATS)]
1231 *) Protect against overlong session ID context length in an encoded
1232 session object. Since these are local, this does not appear to be
1234 [Ben Laurie (CHATS)]
1236 *) Change from security patch (see 0.9.6e below) that did not affect
1237 the 0.9.6 release series:
1239 Remote buffer overflow in SSL3 protocol - an attacker could
1240 supply an oversized master key in Kerberos-enabled versions.
1242 [Ben Laurie (CHATS)]
1244 *) Change the SSL kerb5 codes to match RFC 2712.
1247 *) Make -nameopt work fully for req and add -reqopt switch.
1248 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
1250 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
1251 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
1253 *) Make sure tests can be performed even if the corresponding algorithms
1254 have been removed entirely. This was also the last step to make
1255 OpenSSL compilable with DJGPP under all reasonable conditions.
1256 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
1258 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
1259 to allow version independent disabling of normally unselected ciphers,
1260 which may be activated as a side-effect of selecting a single cipher.
1262 (E.g., cipher list string "RSA" enables ciphersuites that are left
1263 out of "ALL" because they do not provide symmetric encryption.
1264 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
1265 [Lutz Jaenicke, Bodo Moeller]
1267 *) Add appropriate support for separate platform-dependent build
1268 directories. The recommended way to make a platform-dependent
1269 build directory is the following (tested on Linux), maybe with
1272 # Place yourself outside of the OpenSSL source tree. In
1273 # this example, the environment variable OPENSSL_SOURCE
1274 # is assumed to contain the absolute OpenSSL source directory.
1275 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
1276 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
1277 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
1278 mkdir -p `dirname $F`
1279 ln -s $OPENSSL_SOURCE/$F $F
1282 To be absolutely sure not to disturb the source tree, a "make clean"
1283 is a good thing. If it isn't successfull, don't worry about it,
1284 it probably means the source directory is very clean.
1287 *) Make sure any ENGINE control commands make local copies of string
1288 pointers passed to them whenever necessary. Otherwise it is possible
1289 the caller may have overwritten (or deallocated) the original string
1290 data when a later ENGINE operation tries to use the stored values.
1291 [Götz Babin-Ebell <babinebell@trustcenter.de>]
1293 *) Improve diagnostics in file reading and command-line digests.
1294 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
1296 *) Add AES modes CFB and OFB to the object database. Correct an
1297 error in AES-CFB decryption.
1300 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
1301 allows existing EVP_CIPHER_CTX structures to be reused after
1302 calling EVP_*Final(). This behaviour is used by encryption
1303 BIOs and some applications. This has the side effect that
1304 applications must explicitly clean up cipher contexts with
1305 EVP_CIPHER_CTX_cleanup() or they will leak memory.
1308 *) Check the values of dna and dnb in bn_mul_recursive before calling
1309 bn_mul_comba (a non zero value means the a or b arrays do not contain
1310 n2 elements) and fallback to bn_mul_normal if either is not zero.
1313 *) Fix escaping of non-ASCII characters when using the -subj option
1314 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
1317 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
1318 form for "surname", serialNumber has no short form.
1319 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
1320 therefore remove "mail" short name for "internet 7".
1321 The OID for unique identifiers in X509 certificates is
1322 x500UniqueIdentifier, not uniqueIdentifier.
1323 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
1326 *) Add an "init" command to the ENGINE config module and auto initialize
1327 ENGINEs. Without any "init" command the ENGINE will be initialized
1328 after all ctrl commands have been executed on it. If init=1 the
1329 ENGINE is initailized at that point (ctrls before that point are run
1330 on the uninitialized ENGINE and after on the initialized one). If
1331 init=0 then the ENGINE will not be iniatialized at all.
1334 *) Fix the 'app_verify_callback' interface so that the user-defined
1335 argument is actually passed to the callback: In the
1336 SSL_CTX_set_cert_verify_callback() prototype, the callback
1337 declaration has been changed from
1340 int (*cb)(X509_STORE_CTX *,void *);
1341 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
1342 i=s->ctx->app_verify_callback(&ctx)
1343 has been changed into
1344 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
1346 To update applications using SSL_CTX_set_cert_verify_callback(),
1347 a dummy argument can be added to their callback functions.
1348 [D. K. Smetters <smetters@parc.xerox.com>]
1350 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
1351 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
1353 *) Add and OPENSSL_LOAD_CONF define which will cause
1354 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
1355 This allows older applications to transparently support certain
1356 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
1357 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
1358 load the config file and OPENSSL_add_all_algorithms_conf() which will
1359 always load it have also been added.
1362 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
1363 Adjust NIDs and EVP layer.
1364 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
1366 *) Config modules support in openssl utility.
1368 Most commands now load modules from the config file,
1369 though in a few (such as version) this isn't done
1370 because it couldn't be used for anything.
1372 In the case of ca and req the config file used is
1373 the same as the utility itself: that is the -config
1374 command line option can be used to specify an
1378 *) Move default behaviour from OPENSSL_config(). If appname is NULL
1379 use "openssl_conf" if filename is NULL use default openssl config file.
1382 *) Add an argument to OPENSSL_config() to allow the use of an alternative
1383 config section name. Add a new flag to tolerate a missing config file
1384 and move code to CONF_modules_load_file().
1387 *) Support for crypto accelerator cards from Accelerated Encryption
1388 Processing, www.aep.ie. (Use engine 'aep')
1389 The support was copied from 0.9.6c [engine] and adapted/corrected
1390 to work with the new engine framework.
1391 [AEP Inc. and Richard Levitte]
1393 *) Support for SureWare crypto accelerator cards from Baltimore
1394 Technologies. (Use engine 'sureware')
1395 The support was copied from 0.9.6c [engine] and adapted
1396 to work with the new engine framework.
1399 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
1400 make the newer ENGINE framework commands for the CHIL engine work.
1401 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
1403 *) Make it possible to produce shared libraries on ReliantUNIX.
1404 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
1406 *) Add the configuration target debug-linux-ppro.
1407 Make 'openssl rsa' use the general key loading routines
1408 implemented in apps.c, and make those routines able to
1409 handle the key format FORMAT_NETSCAPE and the variant
1411 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
1413 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
1414 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
1416 *) Add -keyform to rsautl, and document -engine.
1417 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
1419 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
1420 BIO_R_NO_SUCH_FILE error code rather than the generic
1421 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
1424 *) Add new functions
1426 ERR_peek_last_error_line
1427 ERR_peek_last_error_line_data.
1428 These are similar to
1431 ERR_peek_error_line_data,
1432 but report on the latest error recorded rather than the first one
1433 still in the error queue.
1434 [Ben Laurie, Bodo Moeller]
1436 *) default_algorithms option in ENGINE config module. This allows things
1438 default_algorithms = ALL
1439 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
1442 *) Prelminary ENGINE config module.
1445 *) New experimental application configuration code.
1448 *) Change the AES code to follow the same name structure as all other
1449 symmetric ciphers, and behave the same way. Move everything to
1450 the directory crypto/aes, thereby obsoleting crypto/rijndael.
1451 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
1453 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
1454 [Ben Laurie and Theo de Raadt]
1456 *) Add option to output public keys in req command.
1457 [Massimiliano Pala madwolf@openca.org]
1459 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
1460 (up to about 10% better than before for P-192 and P-224).
1463 *) New functions/macros
1465 SSL_CTX_set_msg_callback(ctx, cb)
1466 SSL_CTX_set_msg_callback_arg(ctx, arg)
1467 SSL_set_msg_callback(ssl, cb)
1468 SSL_set_msg_callback_arg(ssl, arg)
1470 to request calling a callback function
1472 void cb(int write_p, int version, int content_type,
1473 const void *buf, size_t len, SSL *ssl, void *arg)
1475 whenever a protocol message has been completely received
1476 (write_p == 0) or sent (write_p == 1). Here 'version' is the
1477 protocol version according to which the SSL library interprets
1478 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
1479 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
1480 the content type as defined in the SSL 3.0/TLS 1.0 protocol
1481 specification (change_cipher_spec(20), alert(21), handshake(22)).
1482 'buf' and 'len' point to the actual message, 'ssl' to the
1483 SSL object, and 'arg' is the application-defined value set by
1484 SSL[_CTX]_set_msg_callback_arg().
1486 'openssl s_client' and 'openssl s_server' have new '-msg' options
1487 to enable a callback that displays all protocol messages.
1490 *) Change the shared library support so shared libraries are built as
1491 soon as the corresponding static library is finished, and thereby get
1492 openssl and the test programs linked against the shared library.
1493 This still only happens when the keyword "shard" has been given to
1494 the configuration scripts.
1496 NOTE: shared library support is still an experimental thing, and
1497 backward binary compatibility is still not guaranteed.
1498 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
1500 *) Add support for Subject Information Access extension.
1501 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1503 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
1504 additional bytes when new memory had to be allocated, not just
1505 when reusing an existing buffer.
1508 *) New command line and configuration option 'utf8' for the req command.
1509 This allows field values to be specified as UTF8 strings.
1512 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
1513 runs for the former and machine-readable output for the latter.
1516 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
1517 of the e-mail address in the DN (i.e., it will go into a certificate
1518 extension only). The new configuration file option 'email_in_dn = no'
1519 has the same effect.
1520 [Massimiliano Pala madwolf@openca.org]
1522 *) Change all functions with names starting with des_ to be starting
1523 with DES_ instead. Add wrappers that are compatible with libdes,
1524 but are named _ossl_old_des_*. Finally, add macros that map the
1525 des_* symbols to the corresponding _ossl_old_des_* if libdes
1526 compatibility is desired. If OpenSSL 0.9.6c compatibility is
1527 desired, the des_* symbols will be mapped to DES_*, with one
1530 Since we provide two compatibility mappings, the user needs to
1531 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
1532 compatibility is desired. The default (i.e., when that macro
1533 isn't defined) is OpenSSL 0.9.6c compatibility.
1535 There are also macros that enable and disable the support of old
1536 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
1537 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
1538 are defined, the default will apply: to support the old des routines.
1540 In either case, one must include openssl/des.h to get the correct
1541 definitions. Do not try to just include openssl/des_old.h, that
1544 NOTE: This is a major break of an old API into a new one. Software
1545 authors are encouraged to switch to the DES_ style functions. Some
1546 time in the future, des_old.h and the libdes compatibility functions
1547 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
1548 default), and then completely removed.
1551 *) Test for certificates which contain unsupported critical extensions.
1552 If such a certificate is found during a verify operation it is
1553 rejected by default: this behaviour can be overridden by either
1554 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
1555 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
1556 X509_supported_extension() has also been added which returns 1 if a
1557 particular extension is supported.
1560 *) Modify the behaviour of EVP cipher functions in similar way to digests
1561 to retain compatibility with existing code.
1564 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
1565 compatibility with existing code. In particular the 'ctx' parameter does
1566 not have to be to be initialized before the call to EVP_DigestInit() and
1567 it is tidied up after a call to EVP_DigestFinal(). New function
1568 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
1569 EVP_MD_CTX_copy() changed to not require the destination to be
1570 initialized valid and new function EVP_MD_CTX_copy_ex() added which
1571 requires the destination to be valid.
1573 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
1574 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
1577 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
1578 so that complete 'Handshake' protocol structures are kept in memory
1579 instead of overwriting 'msg_type' and 'length' with 'body' data.
1582 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
1583 [Massimo Santin via Richard Levitte]
1585 *) Major restructuring to the underlying ENGINE code. This includes
1586 reduction of linker bloat, separation of pure "ENGINE" manipulation
1587 (initialisation, etc) from functionality dealing with implementations
1588 of specific crypto iterfaces. This change also introduces integrated
1589 support for symmetric ciphers and digest implementations - so ENGINEs
1590 can now accelerate these by providing EVP_CIPHER and EVP_MD
1591 implementations of their own. This is detailed in crypto/engine/README
1592 as it couldn't be adequately described here. However, there are a few
1593 API changes worth noting - some RSA, DSA, DH, and RAND functions that
1594 were changed in the original introduction of ENGINE code have now
1595 reverted back - the hooking from this code to ENGINE is now a good
1596 deal more passive and at run-time, operations deal directly with
1597 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
1598 dereferencing through an ENGINE pointer any more. Also, the ENGINE
1599 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
1600 they were not being used by the framework as there is no concept of a
1601 BIGNUM_METHOD and they could not be generalised to the new
1602 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
1603 ENGINE_cpy() has been removed as it cannot be consistently defined in
1607 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
1610 *) Change mkdef.pl to sort symbols that get the same entry number,
1611 and make sure the automatically generated functions ERR_load_*
1612 become part of libeay.num as well.
1615 *) New function SSL_renegotiate_pending(). This returns true once
1616 renegotiation has been requested (either SSL_renegotiate() call
1617 or HelloRequest/ClientHello receveived from the peer) and becomes
1618 false once a handshake has been completed.
1619 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
1620 sends a HelloRequest, but does not ensure that a handshake takes
1621 place. SSL_renegotiate_pending() is useful for checking if the
1622 client has followed the request.)
1625 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
1626 By default, clients may request session resumption even during
1627 renegotiation (if session ID contexts permit); with this option,
1628 session resumption is possible only in the first handshake.
1630 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
1631 more bits available for options that should not be part of
1632 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
1635 *) Add some demos for certificate and certificate request creation.
1638 *) Make maximum certificate chain size accepted from the peer application
1639 settable (SSL*_get/set_max_cert_list()), as proposed by
1640 "Douglas E. Engert" <deengert@anl.gov>.
1643 *) Add support for shared libraries for Unixware-7
1644 (Boyd Lynn Gerber <gerberb@zenez.com>).
1647 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
1648 be done prior to destruction. Use this to unload error strings from
1649 ENGINEs that load their own error strings. NB: This adds two new API
1650 functions to "get" and "set" this destroy handler in an ENGINE.
1653 *) Alter all existing ENGINE implementations (except "openssl" and
1654 "openbsd") to dynamically instantiate their own error strings. This
1655 makes them more flexible to be built both as statically-linked ENGINEs
1656 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
1657 Also, add stub code to each that makes building them as self-contained
1658 shared-libraries easier (see README.ENGINE).
1661 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
1662 implementations into applications that are completely implemented in
1663 self-contained shared-libraries. The "dynamic" ENGINE exposes control
1664 commands that can be used to configure what shared-library to load and
1665 to control aspects of the way it is handled. Also, made an update to
1666 the README.ENGINE file that brings its information up-to-date and
1667 provides some information and instructions on the "dynamic" ENGINE
1668 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
1671 *) Make it possible to unload ranges of ERR strings with a new
1672 "ERR_unload_strings" function.
1675 *) Add a copy() function to EVP_MD.
1678 *) Make EVP_MD routines take a context pointer instead of just the
1679 md_data void pointer.
1682 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
1683 that the digest can only process a single chunk of data
1684 (typically because it is provided by a piece of
1685 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
1686 is only going to provide a single chunk of data, and hence the
1687 framework needn't accumulate the data for oneshot drivers.
1690 *) As with "ERR", make it possible to replace the underlying "ex_data"
1691 functions. This change also alters the storage and management of global
1692 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
1693 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
1694 index counters. The API functions that use this state have been changed
1695 to take a "class_index" rather than pointers to the class's local STACK
1696 and counter, and there is now an API function to dynamically create new
1697 classes. This centralisation allows us to (a) plug a lot of the
1698 thread-safety problems that existed, and (b) makes it possible to clean
1699 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
1700 such data would previously have always leaked in application code and
1701 workarounds were in place to make the memory debugging turn a blind eye
1702 to it. Application code that doesn't use this new function will still
1703 leak as before, but their memory debugging output will announce it now
1704 rather than letting it slide.
1706 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
1707 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
1708 has a return value to indicate success or failure.
1711 *) Make it possible to replace the underlying "ERR" functions such that the
1712 global state (2 LHASH tables and 2 locks) is only used by the "default"
1713 implementation. This change also adds two functions to "get" and "set"
1714 the implementation prior to it being automatically set the first time
1715 any other ERR function takes place. Ie. an application can call "get",
1716 pass the return value to a module it has just loaded, and that module
1717 can call its own "set" function using that value. This means the
1718 module's "ERR" operations will use (and modify) the error state in the
1719 application and not in its own statically linked copy of OpenSSL code.
1722 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
1723 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
1724 the operation, and provides a more encapsulated way for external code
1725 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
1726 to use these functions rather than manually incrementing the counts.
1728 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
1731 *) Add EVP test program.
1734 *) Add symmetric cipher support to ENGINE. Expect the API to change!
1737 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
1738 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
1739 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
1740 These allow a CRL to be built without having to access X509_CRL fields
1741 directly. Modify 'ca' application to use new functions.
1744 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
1745 bug workarounds. Rollback attack detection is a security feature.
1746 The problem will only arise on OpenSSL servers when TLSv1 is not
1747 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
1748 Software authors not wanting to support TLSv1 will have special reasons
1749 for their choice and can explicitly enable this option.
1750 [Bodo Moeller, Lutz Jaenicke]
1752 *) Rationalise EVP so it can be extended: don't include a union of
1753 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
1754 (similar to those existing for EVP_CIPHER_CTX).
1759 EVP_MD_CTX_init(&md); /* new function call */
1760 EVP_DigestInit(&md, EVP_sha1());
1761 EVP_DigestUpdate(&md, in, len);
1762 EVP_DigestFinal(&md, out, NULL);
1763 EVP_MD_CTX_cleanup(&md); /* new function call */
1767 *) Make DES key schedule conform to the usual scheme, as well as
1768 correcting its structure. This means that calls to DES functions
1769 now have to pass a pointer to a des_key_schedule instead of a
1770 plain des_key_schedule (which was actually always a pointer
1773 des_key_schedule ks;
1775 des_set_key_checked(..., &ks);
1776 des_ncbc_encrypt(..., &ks, ...);
1778 (Note that a later change renames 'des_...' into 'DES_...'.)
1781 *) Initial reduction of linker bloat: the use of some functions, such as
1782 PEM causes large amounts of unused functions to be linked in due to
1783 poor organisation. For example pem_all.c contains every PEM function
1784 which has a knock on effect of linking in large amounts of (unused)
1785 ASN1 code. Grouping together similar functions and splitting unrelated
1786 functions prevents this.
1789 *) Cleanup of EVP macros.
1792 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
1793 correct _ecb suffix.
1796 *) Add initial OCSP responder support to ocsp application. The
1797 revocation information is handled using the text based index
1798 use by the ca application. The responder can either handle
1799 requests generated internally, supplied in files (for example
1800 via a CGI script) or using an internal minimal server.
1803 *) Add configuration choices to get zlib compression for TLS.
1806 *) Changes to Kerberos SSL for RFC 2712 compliance:
1807 1. Implemented real KerberosWrapper, instead of just using
1808 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
1809 2. Implemented optional authenticator field of KerberosWrapper.
1811 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
1812 and authenticator structs; see crypto/krb5/.
1814 Generalized Kerberos calls to support multiple Kerberos libraries.
1815 [Vern Staats <staatsvr@asc.hpc.mil>,
1816 Jeffrey Altman <jaltman@columbia.edu>
1817 via Richard Levitte]
1819 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
1820 already does with RSA. testdsa.h now has 'priv_key/pub_key'
1821 values for each of the key sizes rather than having just
1822 parameters (and 'speed' generating keys each time).
1825 *) Speed up EVP routines.
1828 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
1829 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
1830 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
1831 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
1833 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
1834 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
1835 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
1838 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
1840 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
1843 *) Added the OS2-EMX target.
1844 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
1846 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
1847 to support NCONF routines in extension code. New function CONF_set_nconf()
1848 to allow functions which take an NCONF to also handle the old LHASH
1849 structure: this means that the old CONF compatible routines can be
1850 retained (in particular wrt extensions) without having to duplicate the
1851 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
1854 *) Enhance the general user interface with mechanisms for inner control
1855 and with possibilities to have yes/no kind of prompts.
1858 *) Change all calls to low level digest routines in the library and
1859 applications to use EVP. Add missing calls to HMAC_cleanup() and
1860 don't assume HMAC_CTX can be copied using memcpy().
1861 [Verdon Walker <VWalker@novell.com>, Steve Henson]
1863 *) Add the possibility to control engines through control names but with
1864 arbitrary arguments instead of just a string.
1865 Change the key loaders to take a UI_METHOD instead of a callback
1866 function pointer. NOTE: this breaks binary compatibility with earlier
1867 versions of OpenSSL [engine].
1868 Adapt the nCipher code for these new conditions and add a card insertion
1872 *) Enhance the general user interface with mechanisms to better support
1873 dialog box interfaces, application-defined prompts, the possibility
1874 to use defaults (for example default passwords from somewhere else)
1875 and interrupts/cancellations.
1878 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
1879 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
1882 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
1883 tidy up some unnecessarily weird code in 'sk_new()').
1884 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
1886 *) Change the key loading routines for ENGINEs to use the same kind
1887 callback (pem_password_cb) as all other routines that need this
1891 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
1892 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
1893 than this minimum value is recommended.
1896 *) New random seeder for OpenVMS, using the system process statistics
1897 that are easily reachable.
1900 *) Windows apparently can't transparently handle global
1901 variables defined in DLLs. Initialisations such as:
1903 const ASN1_ITEM *it = &ASN1_INTEGER_it;
1905 wont compile. This is used by the any applications that need to
1906 declare their own ASN1 modules. This was fixed by adding the option
1907 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
1908 needed for static libraries under Win32.
1911 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
1912 setting of purpose and trust fields. New X509_STORE trust and
1913 purpose functions and tidy up setting in other SSL functions.
1916 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
1917 structure. These are inherited by X509_STORE_CTX when it is
1918 initialised. This allows various defaults to be set in the
1919 X509_STORE structure (such as flags for CRL checking and custom
1920 purpose or trust settings) for functions which only use X509_STORE_CTX
1921 internally such as S/MIME.
1923 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
1924 trust settings if they are not set in X509_STORE. This allows X509_STORE
1925 purposes and trust (in S/MIME for example) to override any set by default.
1927 Add command line options for CRL checking to smime, s_client and s_server
1931 *) Initial CRL based revocation checking. If the CRL checking flag(s)
1932 are set then the CRL is looked up in the X509_STORE structure and
1933 its validity and signature checked, then if the certificate is found
1934 in the CRL the verify fails with a revoked error.
1936 Various new CRL related callbacks added to X509_STORE_CTX structure.
1938 Command line options added to 'verify' application to support this.
1940 This needs some additional work, such as being able to handle multiple
1941 CRLs with different times, extension based lookup (rather than just
1942 by subject name) and ultimately more complete V2 CRL extension
1946 *) Add a general user interface API (crypto/ui/). This is designed
1947 to replace things like des_read_password and friends (backward
1948 compatibility functions using this new API are provided).
1949 The purpose is to remove prompting functions from the DES code
1950 section as well as provide for prompting through dialog boxes in
1951 a window system and the like.
1954 *) Add "ex_data" support to ENGINE so implementations can add state at a
1955 per-structure level rather than having to store it globally.
1958 *) Make it possible for ENGINE structures to be copied when retrieved by
1959 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
1960 This causes the "original" ENGINE structure to act like a template,
1961 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
1962 operational state can be localised to each ENGINE structure, despite the
1963 fact they all share the same "methods". New ENGINE structures returned in
1964 this case have no functional references and the return value is the single
1965 structural reference. This matches the single structural reference returned
1966 by ENGINE_by_id() normally, when it is incremented on the pre-existing
1970 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
1971 needs to match any other type at all we need to manually clear the
1975 *) Changes to the "openssl engine" utility to include;
1976 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
1977 about an ENGINE's available control commands.
1978 - executing control commands from command line arguments using the
1979 '-pre' and '-post' switches. '-post' is only used if '-t' is
1980 specified and the ENGINE is successfully initialised. The syntax for
1981 the individual commands are colon-separated, for example;
1982 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
1985 *) New dynamic control command support for ENGINEs. ENGINEs can now
1986 declare their own commands (numbers), names (strings), descriptions,
1987 and input types for run-time discovery by calling applications. A
1988 subset of these commands are implicitly classed as "executable"
1989 depending on their input type, and only these can be invoked through
1990 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
1991 can be based on user input, config files, etc). The distinction is
1992 that "executable" commands cannot return anything other than a boolean
1993 result and can only support numeric or string input, whereas some
1994 discoverable commands may only be for direct use through
1995 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
1996 pointers, or other custom uses. The "executable" commands are to
1997 support parameterisations of ENGINE behaviour that can be
1998 unambiguously defined by ENGINEs and used consistently across any
1999 OpenSSL-based application. Commands have been added to all the
2000 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
2001 control over shared-library paths without source code alterations.
2004 *) Changed all ENGINE implementations to dynamically allocate their
2005 ENGINEs rather than declaring them statically. Apart from this being
2006 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
2007 this also allows the implementations to compile without using the
2008 internal engine_int.h header.
2011 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
2012 'const' value. Any code that should be able to modify a RAND_METHOD
2013 should already have non-const pointers to it (ie. they should only
2014 modify their own ones).
2017 *) Made a variety of little tweaks to the ENGINE code.
2018 - "atalla" and "ubsec" string definitions were moved from header files
2019 to C code. "nuron" string definitions were placed in variables
2020 rather than hard-coded - allowing parameterisation of these values
2021 later on via ctrl() commands.
2022 - Removed unused "#if 0"'d code.
2023 - Fixed engine list iteration code so it uses ENGINE_free() to release
2024 structural references.
2025 - Constified the RAND_METHOD element of ENGINE structures.
2026 - Constified various get/set functions as appropriate and added
2027 missing functions (including a catch-all ENGINE_cpy that duplicates
2028 all ENGINE values onto a new ENGINE except reference counts/state).
2029 - Removed NULL parameter checks in get/set functions. Setting a method
2030 or function to NULL is a way of cancelling out a previously set
2031 value. Passing a NULL ENGINE parameter is just plain stupid anyway
2032 and doesn't justify the extra error symbols and code.
2033 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
2034 flags from engine_int.h to engine.h.
2035 - Changed prototypes for ENGINE handler functions (init(), finish(),
2036 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
2039 *) Implement binary inversion algorithm for BN_mod_inverse in addition
2040 to the algorithm using long division. The binary algorithm can be
2041 used only if the modulus is odd. On 32-bit systems, it is faster
2042 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
2043 roughly 5-15% for 256-bit moduli), so we use it only for moduli
2044 up to 450 bits. In 64-bit environments, the binary algorithm
2045 appears to be advantageous for much longer moduli; here we use it
2046 for moduli up to 2048 bits.
2049 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
2050 could not support the combine flag in choice fields.
2053 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
2054 extensions from a certificate request to the certificate.
2057 *) Allow multiple 'certopt' and 'nameopt' options to be separated
2058 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
2059 file: this allows the display of the certificate about to be
2060 signed to be customised, to allow certain fields to be included
2061 or excluded and extension details. The old system didn't display
2062 multicharacter strings properly, omitted fields not in the policy
2063 and couldn't display additional details such as extensions.
2066 *) Function EC_POINTs_mul for multiple scalar multiplication
2067 of an arbitrary number of elliptic curve points
2068 \sum scalars[i]*points[i],
2069 optionally including the generator defined for the EC_GROUP:
2070 scalar*generator + \sum scalars[i]*points[i].
2072 EC_POINT_mul is a simple wrapper function for the typical case
2073 that the point list has just one item (besides the optional
2077 *) First EC_METHODs for curves over GF(p):
2079 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
2080 operations and provides various method functions that can also
2081 operate with faster implementations of modular arithmetic.
2083 EC_GFp_mont_method() reuses most functions that are part of
2084 EC_GFp_simple_method, but uses Montgomery arithmetic.
2086 [Bodo Moeller; point addition and point doubling
2087 implementation directly derived from source code provided by
2088 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
2090 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
2091 crypto/ec/ec_lib.c):
2093 Curves are EC_GROUP objects (with an optional group generator)
2094 based on EC_METHODs that are built into the library.
2096 Points are EC_POINT objects based on EC_GROUP objects.
2098 Most of the framework would be able to handle curves over arbitrary
2099 finite fields, but as there are no obvious types for fields other
2100 than GF(p), some functions are limited to that for now.
2103 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
2104 that the file contains a complete HTTP response.
2107 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
2108 change the def and num file printf format specifier from "%-40sXXX"
2109 to "%-39s XXX". The latter will always guarantee a space after the
2110 field while the former will cause them to run together if the field
2111 is 40 of more characters long.
2114 *) Constify the cipher and digest 'method' functions and structures
2115 and modify related functions to take constant EVP_MD and EVP_CIPHER
2119 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
2120 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
2123 *) Modify EVP_Digest*() routines so they now return values. Although the
2124 internal software routines can never fail additional hardware versions
2128 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
2130 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
2131 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
2134 ERR_R_NESTED_ASN1_ERROR
2136 ERR_R_MISSING_ASN1_EOS
2137 were 4 .. 9, conflicting with
2138 ERR_LIB_RSA (= ERR_R_RSA_LIB)
2140 ERR_LIB_PEM (= ERR_R_PEM_LIB).
2141 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
2143 Add new error code 'ERR_R_INTERNAL_ERROR'.
2146 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
2150 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
2151 sets the subject name for a new request or supersedes the
2152 subject name in a given request. Formats that can be parsed are
2153 'CN=Some Name, OU=myOU, C=IT'
2155 'CN=Some Name/OU=myOU/C=IT'.
2157 Add options '-batch' and '-verbose' to 'openssl req'.
2158 [Massimiliano Pala <madwolf@hackmasters.net>]
2160 *) Introduce the possibility to access global variables through
2161 functions on platform were that's the best way to handle exporting
2162 global variables in shared libraries. To enable this functionality,
2163 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
2164 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
2165 is normally done by Configure or something similar).
2167 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
2168 in the source file (foo.c) like this:
2170 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
2171 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
2173 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
2174 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
2176 OPENSSL_DECLARE_GLOBAL(int,foo);
2177 #define foo OPENSSL_GLOBAL_REF(foo)
2178 OPENSSL_DECLARE_GLOBAL(double,bar);
2179 #define bar OPENSSL_GLOBAL_REF(bar)
2181 The #defines are very important, and therefore so is including the
2182 header file everywhere where the defined globals are used.
2184 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
2185 of ASN.1 items, but that structure is a bit different.
2187 The largest change is in util/mkdef.pl which has been enhanced with
2188 better and easier to understand logic to choose which symbols should
2189 go into the Windows .def files as well as a number of fixes and code
2190 cleanup (among others, algorithm keywords are now sorted
2191 lexicographically to avoid constant rewrites).
2194 *) In BN_div() keep a copy of the sign of 'num' before writing the
2195 result to 'rm' because if rm==num the value will be overwritten
2196 and produce the wrong result if 'num' is negative: this caused
2197 problems with BN_mod() and BN_nnmod().
2200 *) Function OCSP_request_verify(). This checks the signature on an
2201 OCSP request and verifies the signer certificate. The signer
2202 certificate is just checked for a generic purpose and OCSP request
2206 *) Add OCSP_check_validity() function to check the validity of OCSP
2207 responses. OCSP responses are prepared in real time and may only
2208 be a few seconds old. Simply checking that the current time lies
2209 between thisUpdate and nextUpdate max reject otherwise valid responses
2210 caused by either OCSP responder or client clock inaccuracy. Instead
2211 we allow thisUpdate and nextUpdate to fall within a certain period of
2212 the current time. The age of the response can also optionally be
2213 checked. Two new options -validity_period and -status_age added to
2217 *) If signature or public key algorithm is unrecognized print out its
2218 OID rather that just UNKNOWN.
2221 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
2222 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
2223 ID to be generated from the issuer certificate alone which can then be
2224 passed to OCSP_id_issuer_cmp().
2227 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
2228 ASN1 modules to export functions returning ASN1_ITEM pointers
2229 instead of the ASN1_ITEM structures themselves. This adds several
2230 new macros which allow the underlying ASN1 function/structure to
2231 be accessed transparently. As a result code should not use ASN1_ITEM
2232 references directly (such as &X509_it) but instead use the relevant
2233 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
2234 use of the new ASN1 code on platforms where exporting structures
2235 is problematical (for example in shared libraries) but exporting
2236 functions returning pointers to structures is not.
2239 *) Add support for overriding the generation of SSL/TLS session IDs.
2240 These callbacks can be registered either in an SSL_CTX or per SSL.
2241 The purpose of this is to allow applications to control, if they wish,
2242 the arbitrary values chosen for use as session IDs, particularly as it
2243 can be useful for session caching in multiple-server environments. A
2244 command-line switch for testing this (and any client code that wishes
2245 to use such a feature) has been added to "s_server".
2246 [Geoff Thorpe, Lutz Jaenicke]
2248 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
2249 of the form '#if defined(...) || defined(...) || ...' and
2250 '#if !defined(...) && !defined(...) && ...'. This also avoids
2251 the growing number of special cases it was previously handling.
2254 *) Make all configuration macros available for application by making
2255 sure they are available in opensslconf.h, by giving them names starting
2256 with "OPENSSL_" to avoid conflicts with other packages and by making
2257 sure e_os2.h will cover all platform-specific cases together with
2259 Additionally, it is now possible to define configuration/platform-
2260 specific names (called "system identities"). In the C code, these
2261 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
2262 macro with the name beginning with "OPENSSL_SYS_", which is determined
2263 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
2267 *) New option -set_serial to 'req' and 'x509' this allows the serial
2268 number to use to be specified on the command line. Previously self
2269 signed certificates were hard coded with serial number 0 and the
2270 CA options of 'x509' had to use a serial number in a file which was
2274 *) New options to 'ca' utility to support V2 CRL entry extensions.
2275 Currently CRL reason, invalidity date and hold instruction are
2276 supported. Add new CRL extensions to V3 code and some new objects.
2279 *) New function EVP_CIPHER_CTX_set_padding() this is used to
2280 disable standard block padding (aka PKCS#5 padding) in the EVP
2281 API, which was previously mandatory. This means that the data is
2282 not padded in any way and so the total length much be a multiple
2283 of the block size, otherwise an error occurs.
2286 *) Initial (incomplete) OCSP SSL support.
2289 *) New function OCSP_parse_url(). This splits up a URL into its host,
2290 port and path components: primarily to parse OCSP URLs. New -url
2291 option to ocsp utility.
2294 *) New nonce behavior. The return value of OCSP_check_nonce() now
2295 reflects the various checks performed. Applications can decide
2296 whether to tolerate certain situations such as an absent nonce
2297 in a response when one was present in a request: the ocsp application
2298 just prints out a warning. New function OCSP_add1_basic_nonce()
2299 this is to allow responders to include a nonce in a response even if
2300 the request is nonce-less.
2303 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
2304 skipped when using openssl x509 multiple times on a single input file,
2305 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
2308 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
2309 set string type: to handle setting ASN1_TIME structures. Fix ca
2310 utility to correctly initialize revocation date of CRLs.
2313 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
2314 the clients preferred ciphersuites and rather use its own preferences.
2315 Should help to work around M$ SGC (Server Gated Cryptography) bug in
2316 Internet Explorer by ensuring unchanged hash method during stepup.
2317 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
2320 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
2321 to aes and add a new 'exist' option to print out symbols that don't
2325 *) Additional options to ocsp utility to allow flags to be set and
2326 additional certificates supplied.
2329 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
2330 OCSP client a number of certificate to only verify the response
2334 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
2335 handle the new API. Currently only ECB, CBC modes supported. Add new
2338 Add TLS AES ciphersuites as described in RFC3268, "Advanced
2339 Encryption Standard (AES) Ciphersuites for Transport Layer
2340 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
2341 not enabled by default and were not part of the "ALL" ciphersuite
2342 alias because they were not yet official; they could be
2343 explicitly requested by specifying the "AESdraft" ciphersuite
2344 group alias. In the final release of OpenSSL 0.9.7, the group
2345 alias is called "AES" and is part of "ALL".)
2346 [Ben Laurie, Steve Henson, Bodo Moeller]
2348 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
2349 request to response.
2352 *) Functions for OCSP responders. OCSP_request_onereq_count(),
2353 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
2354 extract information from a certificate request. OCSP_response_create()
2355 creates a response and optionally adds a basic response structure.
2356 OCSP_basic_add1_status() adds a complete single response to a basic
2357 response and returns the OCSP_SINGLERESP structure just added (to allow
2358 extensions to be included for example). OCSP_basic_add1_cert() adds a
2359 certificate to a basic response and OCSP_basic_sign() signs a basic
2360 response with various flags. New helper functions ASN1_TIME_check()
2361 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
2362 (converts ASN1_TIME to GeneralizedTime).
2365 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
2366 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
2367 structure from a certificate. X509_pubkey_digest() digests the public_key
2368 contents: this is used in various key identifiers.
2371 *) Make sk_sort() tolerate a NULL argument.
2372 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
2374 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
2375 passed by the function are trusted implicitly. If any of them signed the
2376 response then it is assumed to be valid and is not verified.
2379 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
2380 to data. This was previously part of the PKCS7 ASN1 code. This
2381 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
2382 [Steve Henson, reported by Kenneth R. Robinette
2383 <support@securenetterm.com>]
2385 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
2386 routines: without these tracing memory leaks is very painful.
2387 Fix leaks in PKCS12 and PKCS7 routines.
2390 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
2391 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
2392 effectively meant GeneralizedTime would never be used. Now it
2393 is initialised to -1 but X509_time_adj() now has to check the value
2394 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
2395 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
2396 [Steve Henson, reported by Kenneth R. Robinette
2397 <support@securenetterm.com>]
2399 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
2400 result in a zero length in the ASN1_INTEGER structure which was
2401 not consistent with the structure when d2i_ASN1_INTEGER() was used
2402 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
2403 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
2404 where it did not print out a minus for negative ASN1_INTEGER.
2407 *) Add summary printout to ocsp utility. The various functions which
2408 convert status values to strings have been renamed to:
2409 OCSP_response_status_str(), OCSP_cert_status_str() and
2410 OCSP_crl_reason_str() and are no longer static. New options
2411 to verify nonce values and to disable verification. OCSP response
2412 printout format cleaned up.
2415 *) Add additional OCSP certificate checks. These are those specified
2416 in RFC2560. This consists of two separate checks: the CA of the
2417 certificate being checked must either be the OCSP signer certificate
2418 or the issuer of the OCSP signer certificate. In the latter case the
2419 OCSP signer certificate must contain the OCSP signing extended key
2420 usage. This check is performed by attempting to match the OCSP
2421 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
2422 in the OCSP_CERTID structures of the response.
2425 *) Initial OCSP certificate verification added to OCSP_basic_verify()
2426 and related routines. This uses the standard OpenSSL certificate
2427 verify routines to perform initial checks (just CA validity) and
2428 to obtain the certificate chain. Then additional checks will be
2429 performed on the chain. Currently the root CA is checked to see
2430 if it is explicitly trusted for OCSP signing. This is used to set
2431 a root CA as a global signing root: that is any certificate that
2432 chains to that CA is an acceptable OCSP signing certificate.
2435 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
2436 extensions from a separate configuration file.
2437 As when reading extensions from the main configuration file,
2438 the '-extensions ...' option may be used for specifying the
2440 [Massimiliano Pala <madwolf@comune.modena.it>]
2442 *) New OCSP utility. Allows OCSP requests to be generated or
2443 read. The request can be sent to a responder and the output
2444 parsed, outputed or printed in text form. Not complete yet:
2445 still needs to check the OCSP response validity.
2448 *) New subcommands for 'openssl ca':
2449 'openssl ca -status <serial>' prints the status of the cert with
2450 the given serial number (according to the index file).
2451 'openssl ca -updatedb' updates the expiry status of certificates
2453 [Massimiliano Pala <madwolf@comune.modena.it>]
2455 *) New '-newreq-nodes' command option to CA.pl. This is like
2456 '-newreq', but calls 'openssl req' with the '-nodes' option
2457 so that the resulting key is not encrypted.
2458 [Damien Miller <djm@mindrot.org>]
2460 *) New configuration for the GNU Hurd.
2461 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
2463 *) Initial code to implement OCSP basic response verify. This
2464 is currently incomplete. Currently just finds the signer's
2465 certificate and verifies the signature on the response.
2468 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
2469 value of OPENSSLDIR. This is available via the new '-d' option
2470 to 'openssl version', and is also included in 'openssl version -a'.
2473 *) Allowing defining memory allocation callbacks that will be given
2474 file name and line number information in additional arguments
2475 (a const char* and an int). The basic functionality remains, as
2476 well as the original possibility to just replace malloc(),
2477 realloc() and free() by functions that do not know about these
2478 additional arguments. To register and find out the current
2479 settings for extended allocation functions, the following
2480 functions are provided:
2482 CRYPTO_set_mem_ex_functions
2483 CRYPTO_set_locked_mem_ex_functions
2484 CRYPTO_get_mem_ex_functions
2485 CRYPTO_get_locked_mem_ex_functions
2487 These work the same way as CRYPTO_set_mem_functions and friends.
2488 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
2489 extended allocation function is enabled.
2490 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
2491 a conventional allocation function is enabled.
2492 [Richard Levitte, Bodo Moeller]
2494 *) Finish off removing the remaining LHASH function pointer casts.
2495 There should no longer be any prototype-casting required when using
2496 the LHASH abstraction, and any casts that remain are "bugs". See
2497 the callback types and macros at the head of lhash.h for details
2498 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
2501 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
2502 If /dev/[u]random devices are not available or do not return enough
2503 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
2505 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
2506 /etc/entropy will be queried once each in this sequence, quering stops
2507 when enough entropy was collected without querying more sockets.
2510 *) Change the Unix RAND_poll() variant to be able to poll several
2511 random devices, as specified by DEVRANDOM, until a sufficient amount
2512 of data has been collected. We spend at most 10 ms on each file
2513 (select timeout) and read in non-blocking mode. DEVRANDOM now
2514 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
2515 (previously it was just the string "/dev/urandom"), so on typical
2516 platforms the 10 ms delay will never occur.
2517 Also separate out the Unix variant to its own file, rand_unix.c.
2518 For VMS, there's a currently-empty rand_vms.c.
2521 *) Move OCSP client related routines to ocsp_cl.c. These
2522 provide utility functions which an application needing
2523 to issue a request to an OCSP responder and analyse the
2524 response will typically need: as opposed to those which an
2525 OCSP responder itself would need which will be added later.
2527 OCSP_request_sign() signs an OCSP request with an API similar
2528 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
2529 response. OCSP_response_get1_basic() extracts basic response
2530 from response. OCSP_resp_find_status(): finds and extracts status
2531 information from an OCSP_CERTID structure (which will be created
2532 when the request structure is built). These are built from lower
2533 level functions which work on OCSP_SINGLERESP structures but
2534 wont normally be used unless the application wishes to examine
2535 extensions in the OCSP response for example.
2537 Replace nonce routines with a pair of functions.
2538 OCSP_request_add1_nonce() adds a nonce value and optionally
2539 generates a random value. OCSP_check_nonce() checks the
2540 validity of the nonce in an OCSP response.
2543 *) Change function OCSP_request_add() to OCSP_request_add0_id().
2544 This doesn't copy the supplied OCSP_CERTID and avoids the
2545 need to free up the newly created id. Change return type
2546 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
2547 This can then be used to add extensions to the request.
2548 Deleted OCSP_request_new(), since most of its functionality
2549 is now in OCSP_REQUEST_new() (and the case insensitive name
2550 clash) apart from the ability to set the request name which
2551 will be added elsewhere.
2554 *) Update OCSP API. Remove obsolete extensions argument from
2555 various functions. Extensions are now handled using the new
2556 OCSP extension code. New simple OCSP HTTP function which
2557 can be used to send requests and parse the response.
2560 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
2561 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
2562 uses the special reorder version of SET OF to sort the attributes
2563 and reorder them to match the encoded order. This resolves a long
2564 standing problem: a verify on a PKCS7 structure just after signing
2565 it used to fail because the attribute order did not match the
2566 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
2567 it uses the received order. This is necessary to tolerate some broken
2568 software that does not order SET OF. This is handled by encoding
2569 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
2570 to produce the required SET OF.
2573 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
2574 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
2575 files to get correct declarations of the ASN.1 item variables.
2578 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
2579 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
2580 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
2581 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
2582 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
2583 ASN1_ITEM and no wrapper functions.
2586 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
2587 replace the old function pointer based I/O routines. Change most of
2588 the *_d2i_bio() and *_d2i_fp() functions to use these.
2591 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
2592 lines, recognice more "algorithms" that can be deselected, and make
2593 it complain about algorithm deselection that isn't recognised.
2596 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
2597 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
2598 to use new functions. Add NO_ASN1_OLD which can be set to remove
2599 some old style ASN1 functions: this can be used to determine if old
2600 code will still work when these eventually go away.
2603 *) New extension functions for OCSP structures, these follow the
2604 same conventions as certificates and CRLs.
2607 *) New function X509V3_add1_i2d(). This automatically encodes and
2608 adds an extension. Its behaviour can be customised with various
2609 flags to append, replace or delete. Various wrappers added for
2610 certifcates and CRLs.
2613 *) Fix to avoid calling the underlying ASN1 print routine when
2614 an extension cannot be parsed. Correct a typo in the
2615 OCSP_SERVICELOC extension. Tidy up print OCSP format.
2618 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
2619 entries for variables.
2622 *) Add functionality to apps/openssl.c for detecting locking
2623 problems: As the program is single-threaded, all we have
2624 to do is register a locking callback using an array for
2625 storing which locks are currently held by the program.
2628 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
2629 SSL_get_ex_data_X509_STORE_idx(), which is used in
2630 ssl_verify_cert_chain() and thus can be called at any time
2631 during TLS/SSL handshakes so that thread-safety is essential.
2632 Unfortunately, the ex_data design is not at all suited
2633 for multi-threaded use, so it probably should be abolished.
2636 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
2637 [Broadcom, tweaked and integrated by Geoff Thorpe]
2639 *) Move common extension printing code to new function
2640 X509V3_print_extensions(). Reorganise OCSP print routines and
2641 implement some needed OCSP ASN1 functions. Add OCSP extensions.
2644 *) New function X509_signature_print() to remove duplication in some
2648 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
2649 set (this was treated exactly the same as SET OF previously). This
2650 is used to reorder the STACK representing the structure to match the
2651 encoding. This will be used to get round a problem where a PKCS7
2652 structure which was signed could not be verified because the STACK
2653 order did not reflect the encoded order.
2656 *) Reimplement the OCSP ASN1 module using the new code.
2659 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
2660 for its ASN1 operations. The old style function pointers still exist
2661 for now but they will eventually go away.
2664 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
2665 completely replaces the old ASN1 functionality with a table driven
2666 encoder and decoder which interprets an ASN1_ITEM structure describing
2667 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
2668 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
2669 has also been converted to the new form.
2672 *) Change BN_mod_exp_recp so that negative moduli are tolerated
2673 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
2674 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
2675 for negative moduli.
2678 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
2679 of not touching the result's sign bit.
2682 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
2686 *) Changed the LHASH code to use prototypes for callbacks, and created
2687 macros to declare and implement thin (optionally static) functions
2688 that provide type-safety and avoid function pointer casting for the
2689 type-specific callbacks.
2692 *) Added Kerberos Cipher Suites to be used with TLS, as written in
2694 [Veers Staats <staatsvr@asc.hpc.mil>,
2695 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
2697 *) Reformat the FAQ so the different questions and answers can be divided
2698 in sections depending on the subject.
2701 *) Have the zlib compression code load ZLIB.DLL dynamically under
2705 *) New function BN_mod_sqrt for computing square roots modulo a prime
2706 (using the probabilistic Tonelli-Shanks algorithm unless
2707 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
2708 be handled deterministically).
2709 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
2711 *) Make BN_mod_inverse faster by explicitly handling small quotients
2712 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
2713 512 bits], about 30% for larger ones [1024 or 2048 bits].)
2716 *) New function BN_kronecker.
2719 *) Fix BN_gcd so that it works on negative inputs; the result is
2720 positive unless both parameters are zero.
2721 Previously something reasonably close to an infinite loop was
2722 possible because numbers could be growing instead of shrinking
2723 in the implementation of Euclid's algorithm.
2726 *) Fix BN_is_word() and BN_is_one() macros to take into account the
2727 sign of the number in question.
2729 Fix BN_is_word(a,w) to work correctly for w == 0.
2731 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
2732 because its test if the absolute value of 'a' equals 'w'.
2733 Note that BN_abs_is_word does *not* handle w == 0 reliably;
2734 it exists mostly for use in the implementations of BN_is_zero(),
2735 BN_is_one(), and BN_is_word().
2738 *) New function BN_swap.
2741 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
2742 the exponentiation functions are more likely to produce reasonable
2743 results on negative inputs.
2746 *) Change BN_mod_mul so that the result is always non-negative.
2747 Previously, it could be negative if one of the factors was negative;
2748 I don't think anyone really wanted that behaviour.
2751 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
2752 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
2753 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
2754 and add new functions:
2763 BN_mod_lshift1_quick
2767 These functions always generate non-negative results.
2769 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
2770 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
2772 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
2773 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
2774 be reduced modulo m.
2775 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
2778 The following entry accidentily appeared in the CHANGES file
2779 distributed with OpenSSL 0.9.7. The modifications described in
2780 it do *not* apply to OpenSSL 0.9.7.
2782 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
2783 was actually never needed) and in BN_mul(). The removal in BN_mul()
2784 required a small change in bn_mul_part_recursive() and the addition
2785 of the functions bn_cmp_part_words(), bn_sub_part_words() and
2786 bn_add_part_words(), which do the same thing as bn_cmp_words(),
2787 bn_sub_words() and bn_add_words() except they take arrays with
2792 *) In 'openssl passwd', verify passwords read from the terminal
2793 unless the '-salt' option is used (which usually means that
2794 verification would just waste user's time since the resulting
2795 hash is going to be compared with some given password hash)
2796 or the new '-noverify' option is used.
2798 This is an incompatible change, but it does not affect
2799 non-interactive use of 'openssl passwd' (passwords on the command
2800 line, '-stdin' option, '-in ...' option) and thus should not
2804 *) Remove all references to RSAref, since there's no more need for it.
2807 *) Make DSO load along a path given through an environment variable
2808 (SHLIB_PATH) with shl_load().
2811 *) Constify the ENGINE code as a result of BIGNUM constification.
2812 Also constify the RSA code and most things related to it. In a
2813 few places, most notable in the depth of the ASN.1 code, ugly
2814 casts back to non-const were required (to be solved at a later
2818 *) Make it so the openssl application has all engines loaded by default.
2821 *) Constify the BIGNUM routines a little more.
2824 *) Add the following functions:
2826 ENGINE_load_cswift()
2828 ENGINE_load_atalla()
2830 ENGINE_load_builtin_engines()
2832 That way, an application can itself choose if external engines that
2833 are built-in in OpenSSL shall ever be used or not. The benefit is
2834 that applications won't have to be linked with libdl or other dso
2835 libraries unless it's really needed.
2837 Changed 'openssl engine' to load all engines on demand.
2838 Changed the engine header files to avoid the duplication of some
2839 declarations (they differed!).
2842 *) 'openssl engine' can now list capabilities.
2845 *) Better error reporting in 'openssl engine'.
2848 *) Never call load_dh_param(NULL) in s_server.
2851 *) Add engine application. It can currently list engines by name and
2852 identity, and test if they are actually available.
2855 *) Improve RPM specification file by forcing symbolic linking and making
2856 sure the installed documentation is also owned by root.root.
2857 [Damien Miller <djm@mindrot.org>]
2859 *) Give the OpenSSL applications more possibilities to make use of
2860 keys (public as well as private) handled by engines.
2863 *) Add OCSP code that comes from CertCo.
2866 *) Add VMS support for the Rijndael code.
2869 *) Added untested support for Nuron crypto accelerator.
2872 *) Add support for external cryptographic devices. This code was
2873 previously distributed separately as the "engine" branch.
2874 [Geoff Thorpe, Richard Levitte]
2876 *) Rework the filename-translation in the DSO code. It is now possible to
2877 have far greater control over how a "name" is turned into a filename
2878 depending on the operating environment and any oddities about the
2879 different shared library filenames on each system.
2882 *) Support threads on FreeBSD-elf in Configure.
2885 *) Fix for SHA1 assembly problem with MASM: it produces
2886 warnings about corrupt line number information when assembling
2887 with debugging information. This is caused by the overlapping
2889 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
2892 NCONF_get_number() has no error checking at all. As a replacement,
2893 NCONF_get_number_e() is defined (_e for "error checking") and is
2894 promoted strongly. The old NCONF_get_number is kept around for
2895 binary backward compatibility.
2896 Make it possible for methods to load from something other than a BIO,
2897 by providing a function pointer that is given a name instead of a BIO.
2898 For example, this could be used to load configuration data from an
2902 *) Fix for non blocking accept BIOs. Added new I/O special reason
2903 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
2904 with non blocking I/O was not possible because no retry code was
2905 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
2909 *) Added the beginnings of Rijndael support.
2912 *) Fix for bug in DirectoryString mask setting. Add support for
2913 X509_NAME_print_ex() in 'req' and X509_print_ex() function
2914 to allow certificate printing to more controllable, additional
2915 'certopt' option to 'x509' to allow new printing options to be
2919 *) Clean old EAY MD5 hack from e_os.h.
2922 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
2924 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
2925 by using the Codenomicon TLS Test Tool (CAN-2004-0079)
2926 [Joe Orton, Steve Henson]
2928 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
2930 *) Fix additional bug revealed by the NISCC test suite:
2932 Stop bug triggering large recursion when presented with
2933 certain ASN.1 tags (CAN-2003-0851)
2936 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
2938 *) Fix various bugs revealed by running the NISCC test suite:
2940 Stop out of bounds reads in the ASN1 code when presented with
2941 invalid tags (CAN-2003-0543 and CAN-2003-0544).
2943 If verify callback ignores invalid public key errors don't try to check
2944 certificate signature with the NULL public key.
2948 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
2949 if the server requested one: as stated in TLS 1.0 and SSL 3.0
2953 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
2954 extra data after the compression methods not only for TLS 1.0
2955 but also for SSL 3.0 (as required by the specification).
2956 [Bodo Moeller; problem pointed out by Matthias Loepfe]
2958 *) Change X509_certificate_type() to mark the key as exported/exportable
2959 when it's 512 *bits* long, not 512 bytes.
2962 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
2964 *) Countermeasure against the Klima-Pokorny-Rosa extension of
2965 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
2966 a protocol version number mismatch like a decryption error
2967 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
2970 *) Turn on RSA blinding by default in the default implementation
2971 to avoid a timing attack. Applications that don't want it can call
2972 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
2973 They would be ill-advised to do so in most cases.
2974 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
2976 *) Change RSA blinding code so that it works when the PRNG is not
2977 seeded (in this case, the secret RSA exponent is abused as
2978 an unpredictable seed -- if it is not unpredictable, there
2979 is no point in blinding anyway). Make RSA blinding thread-safe
2980 by remembering the creator's thread ID in rsa->blinding and
2981 having all other threads use local one-time blinding factors
2982 (this requires more computation than sharing rsa->blinding, but
2983 avoids excessive locking; and if an RSA object is not shared
2984 between threads, blinding will still be very fast).
2987 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
2989 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
2990 via timing by performing a MAC computation even if incorrrect
2991 block cipher padding has been found. This is a countermeasure
2992 against active attacks where the attacker has to distinguish
2993 between bad padding and a MAC verification error. (CAN-2003-0078)
2995 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
2996 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
2997 Martin Vuagnoux (EPFL, Ilion)]
2999 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
3001 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
3002 memory from it's contents. This is done with a counter that will
3003 place alternating values in each byte. This can be used to solve
3004 two issues: 1) the removal of calls to memset() by highly optimizing
3005 compilers, and 2) cleansing with other values than 0, since those can
3006 be read through on certain media, for example a swap space on disk.
3009 *) Bugfix: client side session caching did not work with external caching,
3010 because the session->cipher setting was not restored when reloading
3011 from the external cache. This problem was masked, when
3012 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
3013 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
3016 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
3017 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
3018 [Zeev Lieber <zeev-l@yahoo.com>]
3020 *) Undo an undocumented change introduced in 0.9.6e which caused
3021 repeated calls to OpenSSL_add_all_ciphers() and
3022 OpenSSL_add_all_digests() to be ignored, even after calling
3026 *) Change the default configuration reader to deal with last line not
3027 being properly terminated.
3030 *) Change X509_NAME_cmp() so it applies the special rules on handling
3031 DN values that are of type PrintableString, as well as RDNs of type
3032 emailAddress where the value has the type ia5String.
3033 [stefank@valicert.com via Richard Levitte]
3035 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
3036 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
3037 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
3038 the bitwise-OR of the two for use by the majority of applications
3039 wanting this behaviour, and update the docs. The documented
3040 behaviour and actual behaviour were inconsistent and had been
3041 changing anyway, so this is more a bug-fix than a behavioural
3043 [Geoff Thorpe, diagnosed by Nadav Har'El]
3045 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
3046 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
3049 *) Fix initialization code race conditions in
3050 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
3051 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
3052 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
3053 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
3054 ssl2_get_cipher_by_char(),
3055 ssl3_get_cipher_by_char().
3056 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
3058 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
3059 the cached sessions are flushed, as the remove_cb() might use ex_data
3060 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
3061 (see [openssl.org #212]).
3062 [Geoff Thorpe, Lutz Jaenicke]
3064 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
3065 length, instead of the encoding length to d2i_ASN1_OBJECT.
3068 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
3070 *) [In 0.9.6g-engine release:]
3071 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
3072 [Lynn Gazis <lgazis@rainbow.com>]
3074 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
3076 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
3077 and get fix the header length calculation.
3078 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
3079 Alon Kantor <alonk@checkpoint.com> (and others),
3082 *) Use proper error handling instead of 'assertions' in buffer
3083 overflow checks added in 0.9.6e. This prevents DoS (the
3084 assertions could call abort()).
3085 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
3087 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
3089 *) Add various sanity checks to asn1_get_length() to reject
3090 the ASN1 length bytes if they exceed sizeof(long), will appear
3091 negative or the content length exceeds the length of the
3093 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3095 *) Fix cipher selection routines: ciphers without encryption had no flags
3096 for the cipher strength set and where therefore not handled correctly
3097 by the selection routines (PR #130).
3100 *) Fix EVP_dsa_sha macro.
3104 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
3105 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
3106 that was added in OpenSSL 0.9.6d.
3108 As the countermeasure turned out to be incompatible with some
3109 broken SSL implementations, the new option is part of SSL_OP_ALL.
3110 SSL_OP_ALL is usually employed when compatibility with weird SSL
3111 implementations is desired (e.g. '-bugs' option to 's_client' and
3112 's_server'), so the new option is automatically set in many
3116 *) Changes in security patch:
3118 Changes marked "(CHATS)" were sponsored by the Defense Advanced
3119 Research Projects Agency (DARPA) and Air Force Research Laboratory,
3120 Air Force Materiel Command, USAF, under agreement number
3123 *) Add various sanity checks to asn1_get_length() to reject
3124 the ASN1 length bytes if they exceed sizeof(long), will appear
3125 negative or the content length exceeds the length of the
3126 supplied buffer. (CAN-2002-0659)
3127 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3129 *) Assertions for various potential buffer overflows, not known to
3131 [Ben Laurie (CHATS)]
3133 *) Various temporary buffers to hold ASCII versions of integers were
3134 too small for 64 bit platforms. (CAN-2002-0655)
3135 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
3137 *) Remote buffer overflow in SSL3 protocol - an attacker could
3138 supply an oversized session ID to a client. (CAN-2002-0656)
3139 [Ben Laurie (CHATS)]
3141 *) Remote buffer overflow in SSL2 protocol - an attacker could
3142 supply an oversized client master key. (CAN-2002-0656)
3143 [Ben Laurie (CHATS)]
3145 Changes between 0.9.6c and 0.9.6d [9 May 2002]
3147 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
3148 encoded as NULL) with id-dsa-with-sha1.
3149 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
3151 *) Check various X509_...() return values in apps/req.c.
3152 [Nils Larsch <nla@trustcenter.de>]
3154 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
3155 an end-of-file condition would erronously be flagged, when the CRLF
3156 was just at the end of a processed block. The bug was discovered when
3157 processing data through a buffering memory BIO handing the data to a
3158 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
3159 <ptsekov@syntrex.com> and Nedelcho Stanev.
3162 *) Implement a countermeasure against a vulnerability recently found
3163 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
3164 before application data chunks to avoid the use of known IVs
3165 with data potentially chosen by the attacker.
3168 *) Fix length checks in ssl3_get_client_hello().
3171 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
3172 to prevent ssl3_read_internal() from incorrectly assuming that
3173 ssl3_read_bytes() found application data while handshake
3174 processing was enabled when in fact s->s3->in_read_app_data was
3175 merely automatically cleared during the initial handshake.
3176 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
3178 *) Fix object definitions for Private and Enterprise: they were not
3179 recognized in their shortname (=lowercase) representation. Extend
3180 obj_dat.pl to issue an error when using undefined keywords instead
3181 of silently ignoring the problem (Svenning Sorensen
3182 <sss@sss.dnsalias.net>).
3185 *) Fix DH_generate_parameters() so that it works for 'non-standard'
3186 generators, i.e. generators other than 2 and 5. (Previously, the
3187 code did not properly initialise the 'add' and 'rem' values to
3188 BN_generate_prime().)
3190 In the new general case, we do not insist that 'generator' is
3191 actually a primitive root: This requirement is rather pointless;
3192 a generator of the order-q subgroup is just as good, if not
3196 *) Map new X509 verification errors to alerts. Discovered and submitted by
3197 Tom Wu <tom@arcot.com>.
3200 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
3201 returning non-zero before the data has been completely received
3202 when using non-blocking I/O.
3203 [Bodo Moeller; problem pointed out by John Hughes]
3205 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
3206 [Ben Laurie, Lutz Jaenicke]
3208 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
3209 Yoram Zahavi <YoramZ@gilian.com>).
3212 *) Add information about CygWin 1.3 and on, and preserve proper
3213 configuration for the versions before that.
3214 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
3216 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
3217 check whether we deal with a copy of a session and do not delete from
3218 the cache in this case. Problem reported by "Izhar Shoshani Levi"
3219 <izhar@checkpoint.com>.
3222 *) Do not store session data into the internal session cache, if it
3223 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
3224 flag is set). Proposed by Aslam <aslam@funk.com>.
3227 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
3231 *) [In 0.9.6d-engine release:]
3232 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3233 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3235 *) Add the configuration target linux-s390x.
3236 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
3238 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
3239 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
3240 variable as an indication that a ClientHello message has been
3241 received. As the flag value will be lost between multiple
3242 invocations of ssl3_accept when using non-blocking I/O, the
3243 function may not be aware that a handshake has actually taken
3244 place, thus preventing a new session from being added to the
3247 To avoid this problem, we now set s->new_session to 2 instead of
3248 using a local variable.
3249 [Lutz Jaenicke, Bodo Moeller]
3251 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
3252 if the SSL_R_LENGTH_MISMATCH error is detected.
3253 [Geoff Thorpe, Bodo Moeller]
3255 *) New 'shared_ldflag' column in Configure platform table.
3258 *) Fix EVP_CIPHER_mode macro.
3259 ["Dan S. Camper" <dan@bti.net>]
3261 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
3262 type, we must throw them away by setting rr->length to 0.
3263 [D P Chang <dpc@qualys.com>]
3265 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
3267 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
3268 <Dominikus.Scherkl@biodata.com>. (The previous implementation
3269 worked incorrectly for those cases where range = 10..._2 and
3270 3*range is two bits longer than range.)
3273 *) Only add signing time to PKCS7 structures if it is not already
3277 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
3278 OBJ_ld_ce should be OBJ_id_ce.
3279 Also some ip-pda OIDs in crypto/objects/objects.txt were
3280 incorrect (cf. RFC 3039).
3281 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
3283 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
3284 returns early because it has nothing to do.
3285 [Andy Schneider <andy.schneider@bjss.co.uk>]
3287 *) [In 0.9.6c-engine release:]
3288 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
3289 [Andy Schneider <andy.schneider@bjss.co.uk>]
3291 *) [In 0.9.6c-engine release:]
3292 Add support for Cryptographic Appliance's keyserver technology.
3293 (Use engine 'keyclient')
3294 [Cryptographic Appliances and Geoff Thorpe]
3296 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
3297 is called via tools/c89.sh because arguments have to be
3298 rearranged (all '-L' options must appear before the first object
3300 [Richard Shapiro <rshapiro@abinitio.com>]
3302 *) [In 0.9.6c-engine release:]
3303 Add support for Broadcom crypto accelerator cards, backported
3305 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
3307 *) [In 0.9.6c-engine release:]
3308 Add support for SureWare crypto accelerator cards from
3309 Baltimore Technologies. (Use engine 'sureware')
3310 [Baltimore Technologies and Mark Cox]
3312 *) [In 0.9.6c-engine release:]
3313 Add support for crypto accelerator cards from Accelerated
3314 Encryption Processing, www.aep.ie. (Use engine 'aep')
3315 [AEP Inc. and Mark Cox]
3317 *) Add a configuration entry for gcc on UnixWare.
3318 [Gary Benson <gbenson@redhat.com>]
3320 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
3321 messages are stored in a single piece (fixed-length part and
3322 variable-length part combined) and fix various bugs found on the way.
3325 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
3326 instead. BIO_gethostbyname() does not know what timeouts are
3327 appropriate, so entries would stay in cache even when they have
3329 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
3331 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
3332 faced with a pathologically small ClientHello fragment that does
3333 not contain client_version: Instead of aborting with an error,
3334 simply choose the highest available protocol version (i.e.,
3335 TLS 1.0 unless it is disabled). In practice, ClientHello
3336 messages are never sent like this, but this change gives us
3337 strictly correct behaviour at least for TLS.
3340 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
3341 never resets s->method to s->ctx->method when called from within
3342 one of the SSL handshake functions.
3343 [Bodo Moeller; problem pointed out by Niko Baric]
3345 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
3346 (sent using the client's version number) if client_version is
3347 smaller than the protocol version in use. Also change
3348 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
3349 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
3350 the client will at least see that alert.
3353 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
3357 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
3358 client receives HelloRequest while in a handshake.
3359 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
3361 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
3362 should end in 'break', not 'goto end' which circuments various
3363 cleanups done in state SSL_ST_OK. But session related stuff
3364 must be disabled for SSL_ST_OK in the case that we just sent a
3367 Also avoid some overhead by not calling ssl_init_wbio_buffer()
3368 before just sending a HelloRequest.
3369 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
3371 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
3372 reveal whether illegal block cipher padding was found or a MAC
3373 verification error occured. (Neither SSLerr() codes nor alerts
3374 are directly visible to potential attackers, but the information
3375 may leak via logfiles.)
3377 Similar changes are not required for the SSL 2.0 implementation
3378 because the number of padding bytes is sent in clear for SSL 2.0,
3379 and the extra bytes are just ignored. However ssl/s2_pkt.c
3380 failed to verify that the purported number of padding bytes is in
3384 *) Add OpenUNIX-8 support including shared libraries
3385 (Boyd Lynn Gerber <gerberb@zenez.com>).
3388 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
3389 'wristwatch attack' using huge encoding parameters (cf.
3390 James H. Manger's CRYPTO 2001 paper). Note that the
3391 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
3392 encoding parameters and hence was not vulnerable.
3395 *) BN_sqr() bug fix.
3396 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
3398 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
3399 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
3400 followed by modular reduction.
3401 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
3403 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
3404 equivalent based on BN_pseudo_rand() instead of BN_rand().
3407 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
3408 This function was broken, as the check for a new client hello message
3409 to handle SGC did not allow these large messages.
3410 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
3413 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
3416 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
3417 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
3420 *) Rework the configuration and shared library support for Tru64 Unix.
3421 The configuration part makes use of modern compiler features and
3422 still retains old compiler behavior for those that run older versions
3423 of the OS. The shared library support part includes a variant that
3424 uses the RPATH feature, and is available through the special
3425 configuration target "alpha-cc-rpath", which will never be selected
3427 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
3429 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
3430 with the same message size as in ssl3_get_certificate_request().
3431 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
3432 messages might inadvertently be reject as too long.
3433 [Petr Lampa <lampa@fee.vutbr.cz>]
3435 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
3438 *) Modified SSL library such that the verify_callback that has been set
3439 specificly for an SSL object with SSL_set_verify() is actually being
3440 used. Before the change, a verify_callback set with this function was
3441 ignored and the verify_callback() set in the SSL_CTX at the time of
3442 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
3443 to allow the necessary settings.
3446 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
3447 explicitly to NULL, as at least on Solaris 8 this seems not always to be
3448 done automatically (in contradiction to the requirements of the C
3449 standard). This made problems when used from OpenSSH.
3452 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
3453 dh->length and always used
3455 BN_rand_range(priv_key, dh->p).
3457 BN_rand_range() is not necessary for Diffie-Hellman, and this
3458 specific range makes Diffie-Hellman unnecessarily inefficient if
3459 dh->length (recommended exponent length) is much smaller than the
3460 length of dh->p. We could use BN_rand_range() if the order of
3461 the subgroup was stored in the DH structure, but we only have
3466 BN_rand(priv_key, l, ...)
3468 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
3474 RSA_eay_public_encrypt
3475 RSA_eay_private_decrypt
3476 RSA_eay_private_encrypt (signing)
3477 RSA_eay_public_decrypt (signature verification)
3479 (default implementations for RSA_public_encrypt,
3480 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
3481 always reject numbers >= n.
3484 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
3485 to synchronize access to 'locking_thread'. This is necessary on
3486 systems where access to 'locking_thread' (an 'unsigned long'
3487 variable) is not atomic.
3490 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
3491 *before* setting the 'crypto_lock_rand' flag. The previous code had
3492 a race condition if 0 is a valid thread ID.
3493 [Travis Vitek <vitek@roguewave.com>]
3495 *) Add support for shared libraries under Irix.
3496 [Albert Chin-A-Young <china@thewrittenword.com>]
3498 *) Add configuration option to build on Linux on both big-endian and
3500 [Ralf Baechle <ralf@uni-koblenz.de>]
3502 *) Add the possibility to create shared libraries on HP-UX.
3505 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
3507 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
3508 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
3509 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
3510 PRNG state recovery was possible based on the output of
3511 one PRNG request appropriately sized to gain knowledge on
3512 'md' followed by enough consecutive 1-byte PRNG requests
3513 to traverse all of 'state'.
3515 1. When updating 'md_local' (the current thread's copy of 'md')
3516 during PRNG output generation, hash all of the previous
3517 'md_local' value, not just the half used for PRNG output.
3519 2. Make the number of bytes from 'state' included into the hash
3520 independent from the number of PRNG bytes requested.
3522 The first measure alone would be sufficient to avoid
3523 Markku-Juhani's attack. (Actually it had never occurred
3524 to me that the half of 'md_local' used for chaining was the
3525 half from which PRNG output bytes were taken -- I had always
3526 assumed that the secret half would be used.) The second
3527 measure makes sure that additional data from 'state' is never
3528 mixed into 'md_local' in small portions; this heuristically
3529 further strengthens the PRNG.
3532 *) Fix crypto/bn/asm/mips3.s.
3535 *) When only the key is given to "enc", the IV is undefined. Print out
3536 an error message in this case.
3539 *) Handle special case when X509_NAME is empty in X509 printing routines.
3542 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
3543 positive and less than q.
3546 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
3547 used: it isn't thread safe and the add_lock_callback should handle
3549 [Paul Rose <Paul.Rose@bridge.com>]
3551 *) Verify that incoming data obeys the block size in
3552 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
3556 [Ulf Möller, Bodo Möller]
3558 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
3559 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
3560 when fixing the server behaviour for backwards-compatible 'client
3561 hello' messages. (Note that the attack is impractical against
3562 SSL 3.0 and TLS 1.0 anyway because length and version checking
3563 means that the probability of guessing a valid ciphertext is
3564 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
3567 Before 0.9.5, the countermeasure (hide the error by generating a
3568 random 'decryption result') did not work properly because
3569 ERR_clear_error() was missing, meaning that SSL_get_error() would
3570 detect the supposedly ignored error.
3572 Both problems are now fixed.
3575 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
3576 (previously it was 1024).
3579 *) Fix for compatibility mode trust settings: ignore trust settings
3580 unless some valid trust or reject settings are present.
3583 *) Fix for blowfish EVP: its a variable length cipher.
3586 *) Fix various bugs related to DSA S/MIME verification. Handle missing
3587 parameters in DSA public key structures and return an error in the
3588 DSA routines if parameters are absent.
3591 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
3592 in the current directory if neither $RANDFILE nor $HOME was set.
3593 RAND_file_name() in 0.9.6a returned NULL in this case. This has
3594 caused some confusion to Windows users who haven't defined $HOME.
3595 Thus RAND_file_name() is changed again: e_os.h can define a
3596 DEFAULT_HOME, which will be used if $HOME is not set.
3597 For Windows, we use "C:"; on other platforms, we still require
3598 environment variables.
3600 *) Move 'if (!initialized) RAND_poll()' into regions protected by
3601 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
3602 having multiple threads call RAND_poll() concurrently.
3605 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
3606 combination of a flag and a thread ID variable.
3607 Otherwise while one thread is in ssleay_rand_bytes (which sets the
3608 flag), *other* threads can enter ssleay_add_bytes without obeying
3609 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
3610 that they do not hold after the first thread unsets add_do_not_lock).
3613 *) Change bctest again: '-x' expressions are not available in all
3617 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
3619 *) Fix a couple of memory leaks in PKCS7_dataDecode()
3620 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
3622 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
3623 the default extension for executables, if any. Also, make the perl
3624 scripts that use symlink() to test if it really exists and use "cp"
3625 if it doesn't. All this made OpenSSL compilable and installable in
3629 *) Fix for asn1_GetSequence() for indefinite length constructed data.
3630 If SEQUENCE is length is indefinite just set c->slen to the total
3631 amount of data available.
3632 [Steve Henson, reported by shige@FreeBSD.org]
3633 [This change does not apply to 0.9.7.]
3635 *) Change bctest to avoid here-documents inside command substitution
3636 (workaround for FreeBSD /bin/sh bug).
3637 For compatibility with Ultrix, avoid shell functions (introduced
3638 in the bctest version that searches along $PATH).
3641 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
3642 with des_encrypt() defined on some operating systems, like Solaris
3646 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
3647 On the Importance of Eliminating Errors in Cryptographic
3648 Computations, J. Cryptology 14 (2001) 2, 101-119,
3649 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
3652 *) MIPS assembler BIGNUM division bug fix.
3655 *) Disabled incorrect Alpha assembler code.
3658 *) Fix PKCS#7 decode routines so they correctly update the length
3659 after reading an EOC for the EXPLICIT tag.
3661 [This change does not apply to 0.9.7.]
3663 *) Fix bug in PKCS#12 key generation routines. This was triggered
3664 if a 3DES key was generated with a 0 initial byte. Include
3665 PKCS12_BROKEN_KEYGEN compilation option to retain the old
3666 (but broken) behaviour.
3669 *) Enhance bctest to search for a working bc along $PATH and print
3671 [Tim Rice <tim@multitalents.net> via Richard Levitte]
3673 *) Fix memory leaks in err.c: free err_data string if necessary;
3674 don't write to the wrong index in ERR_set_error_data.
3677 *) Implement ssl23_peek (analogous to ssl23_read), which previously
3681 *) Replace rdtsc with _emit statements for VC++ version 5.
3682 [Jeremy Cooper <jeremy@baymoo.org>]
3684 *) Make it possible to reuse SSLv2 sessions.
3687 *) In copy_email() check for >= 0 as a return value for
3688 X509_NAME_get_index_by_NID() since 0 is a valid index.
3689 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
3691 *) Avoid coredump with unsupported or invalid public keys by checking if
3692 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
3693 PKCS7_verify() fails with non detached data.
3696 *) Don't use getenv in library functions when run as setuid/setgid.
3697 New function OPENSSL_issetugid().
3700 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
3701 due to incorrect handling of multi-threading:
3703 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
3705 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
3707 3. Count how many times MemCheck_off() has been called so that
3708 nested use can be treated correctly. This also avoids
3709 inband-signalling in the previous code (which relied on the
3710 assumption that thread ID 0 is impossible).
3713 *) Add "-rand" option also to s_client and s_server.
3716 *) Fix CPU detection on Irix 6.x.
3717 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
3718 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
3720 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
3723 [This change does not apply to 0.9.7.]
3725 *) Use the cached encoding of an X509_NAME structure rather than
3726 copying it. This is apparently the reason for the libsafe "errors"
3727 but the code is actually correct.
3730 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
3731 Bleichenbacher's DSA attack.
3732 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
3733 to be set and top=0 forces the highest bit to be set; top=-1 is new
3734 and leaves the highest bit random.
3735 [Ulf Moeller, Bodo Moeller]
3737 *) In the NCONF_...-based implementations for CONF_... queries
3738 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
3739 a temporary CONF structure with the data component set to NULL
3740 (which gives segmentation faults in lh_retrieve).
3741 Instead, use NULL for the CONF pointer in CONF_get_string and
3742 CONF_get_number (which may use environment variables) and directly
3743 return NULL from CONF_get_section.
3746 *) Fix potential buffer overrun for EBCDIC.
3749 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
3750 keyUsage if basicConstraints absent for a CA.
3753 *) Make SMIME_write_PKCS7() write mail header values with a format that
3754 is more generally accepted (no spaces before the semicolon), since
3755 some programs can't parse those values properly otherwise. Also make
3756 sure BIO's that break lines after each write do not create invalid
3760 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
3761 macros previously used would not encode an empty SEQUENCE OF
3762 and break the signature.
3764 [This change does not apply to 0.9.7.]
3766 *) Zero the premaster secret after deriving the master secret in
3770 *) Add some EVP_add_digest_alias registrations (as found in
3771 OpenSSL_add_all_digests()) to SSL_library_init()
3772 aka OpenSSL_add_ssl_algorithms(). This provides improved
3773 compatibility with peers using X.509 certificates
3774 with unconventional AlgorithmIdentifier OIDs.
3777 *) Fix for Irix with NO_ASM.
3778 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
3780 *) ./config script fixes.
3781 [Ulf Moeller, Richard Levitte]
3783 *) Fix 'openssl passwd -1'.
3786 *) Change PKCS12_key_gen_asc() so it can cope with non null
3787 terminated strings whose length is passed in the passlen
3788 parameter, for example from PEM callbacks. This was done
3789 by adding an extra length parameter to asc2uni().
3790 [Steve Henson, reported by <oddissey@samsung.co.kr>]
3792 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
3793 call failed, free the DSA structure.
3796 *) Fix to uni2asc() to cope with zero length Unicode strings.
3797 These are present in some PKCS#12 files.
3800 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
3801 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
3802 when writing a 32767 byte record.
3803 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
3805 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
3806 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
3808 (RSA objects have a reference count access to which is protected
3809 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
3810 so they are meant to be shared between threads.)
3811 [Bodo Moeller, Geoff Thorpe; original patch submitted by
3812 "Reddie, Steven" <Steven.Reddie@ca.com>]
3814 *) Fix a deadlock in CRYPTO_mem_leaks().
3817 *) Use better test patterns in bntest.
3820 *) rand_win.c fix for Borland C.
3823 *) BN_rshift bugfix for n == 0.
3826 *) Add a 'bctest' script that checks for some known 'bc' bugs
3827 so that 'make test' does not abort just because 'bc' is broken.
3830 *) Store verify_result within SSL_SESSION also for client side to
3831 avoid potential security hole. (Re-used sessions on the client side
3832 always resulted in verify_result==X509_V_OK, not using the original
3833 result of the server certificate verification.)
3836 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
3837 SSL3_RT_APPLICATION_DATA, return 0.
3838 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
3842 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
3843 releases, have been re-implemented by renaming the previous
3844 implementations of ssl2_read and ssl3_read to ssl2_read_internal
3845 and ssl3_read_internal, respectively, and adding 'peek' parameters
3846 to them. The new ssl[23]_{read,peek} functions are calls to
3847 ssl[23]_read_internal with the 'peek' flag set appropriately.
3848 A 'peek' parameter has also been added to ssl3_read_bytes, which
3849 does the actual work for ssl3_read_internal.
3852 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
3853 the method-specific "init()" handler. Also clean up ex_data after
3854 calling the method-specific "finish()" handler. Previously, this was
3855 happening the other way round.
3858 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
3859 The previous value, 12, was not always sufficient for BN_mod_exp().
3862 *) Make sure that shared libraries get the internal name engine with
3863 the full version number and not just 0. This should mark the
3864 shared libraries as not backward compatible. Of course, this should
3865 be changed again when we can guarantee backward binary compatibility.
3868 *) Fix typo in get_cert_by_subject() in by_dir.c
3869 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
3871 *) Rework the system to generate shared libraries:
3873 - Make note of the expected extension for the shared libraries and
3874 if there is a need for symbolic links from for example libcrypto.so.0
3875 to libcrypto.so.0.9.7. There is extended info in Configure for
3878 - Make as few rebuilds of the shared libraries as possible.
3880 - Still avoid linking the OpenSSL programs with the shared libraries.
3882 - When installing, install the shared libraries separately from the
3886 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
3888 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
3889 and not in SSL_clear because the latter is also used by the
3890 accept/connect functions; previously, the settings made by
3891 SSL_set_read_ahead would be lost during the handshake.
3892 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
3894 *) Correct util/mkdef.pl to be selective about disabled algorithms.
3895 Previously, it would create entries for disableed algorithms no
3899 *) Added several new manual pages for SSL_* function.
3902 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
3904 *) In ssl23_get_client_hello, generate an error message when faced
3905 with an initial SSL 3.0/TLS record that is too small to contain the
3906 first two bytes of the ClientHello message, i.e. client_version.
3907 (Note that this is a pathologic case that probably has never happened
3908 in real life.) The previous approach was to use the version number
3909 from the record header as a substitute; but our protocol choice
3910 should not depend on that one because it is not authenticated
3911 by the Finished messages.
3914 *) More robust randomness gathering functions for Windows.
3915 [Jeffrey Altman <jaltman@columbia.edu>]
3917 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
3918 not set then we don't setup the error code for issuer check errors
3919 to avoid possibly overwriting other errors which the callback does
3920 handle. If an application does set the flag then we assume it knows
3921 what it is doing and can handle the new informational codes
3925 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
3926 a general "ANY" type, as such it should be able to decode anything
3927 including tagged types. However it didn't check the class so it would
3928 wrongly interpret tagged types in the same way as their universal
3929 counterpart and unknown types were just rejected. Changed so that the
3930 tagged and unknown types are handled in the same way as a SEQUENCE:
3931 that is the encoding is stored intact. There is also a new type
3932 "V_ASN1_OTHER" which is used when the class is not universal, in this
3933 case we have no idea what the actual type is so we just lump them all
3937 *) On VMS, stdout may very well lead to a file that is written to
3938 in a record-oriented fashion. That means that every write() will
3939 write a separate record, which will be read separately by the
3940 programs trying to read from it. This can be very confusing.
3942 The solution is to put a BIO filter in the way that will buffer
3943 text until a linefeed is reached, and then write everything a
3944 line at a time, so every record written will be an actual line,
3945 not chunks of lines and not (usually doesn't happen, but I've
3946 seen it once) several lines in one record. BIO_f_linebuffer() is
3949 Currently, it's a VMS-only method, because that's where it has
3950 been tested well enough.
3953 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
3954 it can return incorrect results.
3955 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
3956 but it was in 0.9.6-beta[12].)
3959 *) Disable the check for content being present when verifying detached
3960 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
3961 include zero length content when signing messages.
3964 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
3965 BIO_ctrl (for BIO pairs).
3968 *) Add DSO method for VMS.
3971 *) Bug fix: Montgomery multiplication could produce results with the
3975 *) Add RPM specification openssl.spec and modify it to build three
3976 packages. The default package contains applications, application
3977 documentation and run-time libraries. The devel package contains
3978 include files, static libraries and function documentation. The
3979 doc package contains the contents of the doc directory. The original
3980 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
3983 *) Add a large number of documentation files for many SSL routines.
3984 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
3986 *) Add a configuration entry for Sony News 4.
3987 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
3989 *) Don't set the two most significant bits to one when generating a
3990 random number < q in the DSA library.
3993 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
3994 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
3995 the underlying transport is blocking) if a handshake took place.
3996 (The default behaviour is needed by applications such as s_client
3997 and s_server that use select() to determine when to use SSL_read;
3998 but for applications that know in advance when to expect data, it
3999 just makes things more complicated.)
4002 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
4006 *) Add a few more EBCDIC conditionals that make `req' and `x509'
4007 work better on such systems.
4008 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
4010 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
4011 Update PKCS12_parse() so it copies the friendlyName and the
4012 keyid to the certificates aux info.
4015 *) Fix bug in PKCS7_verify() which caused an infinite loop
4016 if there was more than one signature.
4017 [Sven Uszpelkat <su@celocom.de>]
4019 *) Major change in util/mkdef.pl to include extra information
4020 about each symbol, as well as presentig variables as well
4021 as functions. This change means that there's n more need
4022 to rebuild the .num files when some algorithms are excluded.
4025 *) Allow the verify time to be set by an application,
4026 rather than always using the current time.
4029 *) Phase 2 verify code reorganisation. The certificate
4030 verify code now looks up an issuer certificate by a
4031 number of criteria: subject name, authority key id
4032 and key usage. It also verifies self signed certificates
4033 by the same criteria. The main comparison function is
4034 X509_check_issued() which performs these checks.
4036 Lot of changes were necessary in order to support this
4037 without completely rewriting the lookup code.
4039 Authority and subject key identifier are now cached.
4041 The LHASH 'certs' is X509_STORE has now been replaced
4042 by a STACK_OF(X509_OBJECT). This is mainly because an
4043 LHASH can't store or retrieve multiple objects with
4044 the same hash value.
4046 As a result various functions (which were all internal
4047 use only) have changed to handle the new X509_STORE
4048 structure. This will break anything that messed round
4049 with X509_STORE internally.
4051 The functions X509_STORE_add_cert() now checks for an
4052 exact match, rather than just subject name.
4054 The X509_STORE API doesn't directly support the retrieval
4055 of multiple certificates matching a given criteria, however
4056 this can be worked round by performing a lookup first
4057 (which will fill the cache with candidate certificates)
4058 and then examining the cache for matches. This is probably
4059 the best we can do without throwing out X509_LOOKUP
4060 entirely (maybe later...).
4062 The X509_VERIFY_CTX structure has been enhanced considerably.
4064 All certificate lookup operations now go via a get_issuer()
4065 callback. Although this currently uses an X509_STORE it
4066 can be replaced by custom lookups. This is a simple way
4067 to bypass the X509_STORE hackery necessary to make this
4068 work and makes it possible to use more efficient techniques
4069 in future. A very simple version which uses a simple
4070 STACK for its trusted certificate store is also provided
4071 using X509_STORE_CTX_trusted_stack().
4073 The verify_cb() and verify() callbacks now have equivalents
4074 in the X509_STORE_CTX structure.
4076 X509_STORE_CTX also has a 'flags' field which can be used
4077 to customise the verify behaviour.
4080 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
4081 excludes S/MIME capabilities.
4084 *) When a certificate request is read in keep a copy of the
4085 original encoding of the signed data and use it when outputing
4086 again. Signatures then use the original encoding rather than
4087 a decoded, encoded version which may cause problems if the
4088 request is improperly encoded.
4091 *) For consistency with other BIO_puts implementations, call
4092 buffer_write(b, ...) directly in buffer_puts instead of calling
4095 In BIO_puts, increment b->num_write as in BIO_write.
4096 [Peter.Sylvester@EdelWeb.fr]
4098 *) Fix BN_mul_word for the case where the word is 0. (We have to use
4099 BN_zero, we may not return a BIGNUM with an array consisting of
4103 *) Avoid calling abort() from within the library when problems are
4104 detected, except if preprocessor symbols have been defined
4105 (such as REF_CHECK, BN_DEBUG etc.).
4108 *) New openssl application 'rsautl'. This utility can be
4109 used for low level RSA operations. DER public key
4110 BIO/fp routines also added.
4113 *) New Configure entry and patches for compiling on QNX 4.
4114 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
4116 *) A demo state-machine implementation was sponsored by
4117 Nuron (http://www.nuron.com/) and is now available in
4118 demos/state_machine.
4121 *) New options added to the 'dgst' utility for signature
4122 generation and verification.
4125 *) Unrecognized PKCS#7 content types are now handled via a
4126 catch all ASN1_TYPE structure. This allows unsupported
4127 types to be stored as a "blob" and an application can
4128 encode and decode it manually.
4131 *) Fix various signed/unsigned issues to make a_strex.c
4133 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
4135 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
4136 length if passed a buffer. ASN1_INTEGER_to_BN failed
4137 if passed a NULL BN and its argument was negative.
4138 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
4140 *) Modification to PKCS#7 encoding routines to output definite
4141 length encoding. Since currently the whole structures are in
4142 memory there's not real point in using indefinite length
4143 constructed encoding. However if OpenSSL is compiled with
4144 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
4147 *) Added BIO_vprintf() and BIO_vsnprintf().
4150 *) Added more prefixes to parse for in the the strings written
4151 through a logging bio, to cover all the levels that are available
4152 through syslog. The prefixes are now:
4154 PANIC, EMERG, EMR => LOG_EMERG
4155 ALERT, ALR => LOG_ALERT
4156 CRIT, CRI => LOG_CRIT
4157 ERROR, ERR => LOG_ERR
4158 WARNING, WARN, WAR => LOG_WARNING
4159 NOTICE, NOTE, NOT => LOG_NOTICE
4160 INFO, INF => LOG_INFO
4161 DEBUG, DBG => LOG_DEBUG
4163 and as before, if none of those prefixes are present at the
4164 beginning of the string, LOG_ERR is chosen.
4166 On Win32, the LOG_* levels are mapped according to this:
4168 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
4169 LOG_WARNING => EVENTLOG_WARNING_TYPE
4170 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
4174 *) Made it possible to reconfigure with just the configuration
4175 argument "reconf" or "reconfigure". The command line arguments
4176 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
4177 and are retrieved from there when reconfiguring.
4181 [Assar Westerlund <assar@sics.se>, Richard Levitte]
4183 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
4186 *) The obj_dat.pl script was messing up the sorting of object
4187 names. The reason was that it compared the quoted version
4188 of strings as a result "OCSP" > "OCSP Signing" because
4189 " > SPACE. Changed script to store unquoted versions of
4190 names and add quotes on output. It was also omitting some
4191 names from the lookup table if they were given a default
4192 value (that is if SN is missing it is given the same
4193 value as LN and vice versa), these are now added on the
4194 grounds that if an object has a name we should be able to
4195 look it up. Finally added warning output when duplicate
4196 short or long names are found.
4199 *) Changes needed for Tandem NSK.
4200 [Scott Uroff <scott@xypro.com>]
4202 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
4203 RSA_padding_check_SSLv23(), special padding was never detected
4204 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
4205 version rollback attacks was not effective.
4207 In s23_clnt.c, don't use special rollback-attack detection padding
4208 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
4209 client; similarly, in s23_srvr.c, don't do the rollback check if
4210 SSL 2.0 is the only protocol enabled in the server.
4213 *) Make it possible to get hexdumps of unprintable data with 'openssl
4214 asn1parse'. By implication, the functions ASN1_parse_dump() and
4215 BIO_dump_indent() are added.
4218 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
4219 these print out strings and name structures based on various
4220 flags including RFC2253 support and proper handling of
4221 multibyte characters. Added options to the 'x509' utility
4222 to allow the various flags to be set.
4225 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
4226 Also change the functions X509_cmp_current_time() and
4227 X509_gmtime_adj() work with an
projects / openssl.git / blob