5 Changes between 0.9.7g and 0.9.8 [xx XXX xxxx]
7 *) Add new functionality to the bn blinding code:
8 - automatic re-creation of the BN_BLINDING parameters after
9 a fixed number of uses (currently 32)
10 - add new function for parameter creation
11 - introduce flags to control the update behaviour of the
12 BN_BLINDING parameters
13 - hide BN_BLINDING structure
14 Add a second BN_BLINDING slot to the RSA structure to improve
15 performance when a single RSA object is shared among several
19 *) Add support for DTLS.
20 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
22 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
23 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
26 *) Remove buggy and incompletet DH cert support from
27 ssl/ssl_rsa.c and ssl/s3_both.c
30 *) Use SHA-1 instead of MD5 as the default digest algorithm for
31 the apps/openssl applications.
34 *) Compile clean with "-Wall -Wmissing-prototypes
35 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
36 DEBUG_SAFESTACK must also be set.
39 *) Change ./Configure so that certain algorithms can be disabled by default.
40 The new counterpiece to "no-xxx" is "enable-xxx".
42 The patented RC5 and MDC2 algorithms will now be disabled unless
43 "enable-rc5" and "enable-mdc2", respectively, are specified.
45 (IDEA remains enabled despite being patented. This is because IDEA
46 is frequently required for interoperability, and there is no license
47 fee for non-commercial use. As before, "no-idea" can be used to
48 avoid this algorithm.)
52 *) Add processing of proxy certificates (see RFC 3820). This work was
53 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
54 EGEE (Enabling Grids for E-science in Europe).
57 *) RC4 performance overhaul on modern architectures/implementations, such
58 as Intel P4, IA-64 and AMD64.
61 *) New utility extract-section.pl. This can be used specify an alternative
62 section number in a pod file instead of having to treat each file as
63 a separate case in Makefile. This can be done by adding two lines to the
66 =for comment openssl_section:XXX
68 The blank line is mandatory.
72 *) New arguments -certform, -keyform and -pass for s_client and s_server
73 to allow alternative format key and certificate files and passphrase
77 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
78 update associated structures and add various utility functions.
80 Add new policy related verify parameters, include policy checking in
81 standard verify code. Enhance 'smime' application with extra parameters
82 to support policy checking and print out.
85 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
86 Nehemiah processors. These extensions support AES encryption in hardware
87 as well as RNG (though RNG support is currently disabled).
88 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
90 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
93 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
94 [Andy Polyakov and a number of other people]
96 *) Improved PowerPC platform support. Most notably BIGNUM assembler
97 implementation contributed by IBM.
98 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
100 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
101 exponent rather than 'unsigned long'. There is a corresponding change to
102 the new 'rsa_keygen' element of the RSA_METHOD structure.
103 [Jelte Jansen, Geoff Thorpe]
105 *) Functionality for creating the initial serial number file is now
106 moved from CA.pl to the 'ca' utility with a new option -create_serial.
108 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
109 number file to 1, which is bound to cause problems. To avoid
110 the problems while respecting compatibility between different 0.9.7
111 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
112 CA.pl for serial number initialization. With the new release 0.9.8,
113 we can fix the problem directly in the 'ca' utility.)
116 *) Reduced header interdepencies by declaring more opaque objects in
117 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
118 give fewer recursive includes, which could break lazy source code - so
119 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
120 developers should define this symbol when building and using openssl to
121 ensure they track the recommended behaviour, interfaces, [etc], but
122 backwards-compatible behaviour prevails when this isn't defined.
125 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
128 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
129 This will generate a random key of the appropriate length based on the
130 cipher context. The EVP_CIPHER can provide its own random key generation
131 routine to support keys of a specific form. This is used in the des and
132 3des routines to generate a key of the correct parity. Update S/MIME
133 code to use new functions and hence generate correct parity DES keys.
134 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
135 valid (weak or incorrect parity).
138 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
139 as looking them up. This is useful when the verified structure may contain
140 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
141 present unless the new PKCS7_NO_CRL flag is asserted.
144 *) Extend ASN1 oid configuration module. It now additionally accepts the
147 shortName = some long name, 1.2.3.4
150 *) Reimplemented the BN_CTX implementation. There is now no more static
151 limitation on the number of variables it can handle nor the depth of the
152 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
153 information can now expand as required, and rather than having a single
154 static array of bignums, BN_CTX now uses a linked-list of such arrays
155 allowing it to expand on demand whilst maintaining the usefulness of
159 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
160 to allow all RSA operations to function using a single BN_CTX.
163 *) Preliminary support for certificate policy evaluation and checking. This
164 is initially intended to pass the tests outlined in "Conformance Testing
165 of Relying Party Client Certificate Path Processing Logic" v1.07.
168 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
169 remained unused and not that useful. A variety of other little bignum
170 tweaks and fixes have also been made continuing on from the audit (see
174 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
175 associated ASN1, EVP and SSL functions and old ASN1 macros.
178 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
179 and this should never fail. So the return value from the use of
180 BN_set_word() (which can fail due to needless expansion) is now deprecated;
181 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
184 *) BN_CTX_get() should return zero-valued bignums, providing the same
185 initialised value as BN_new().
186 [Geoff Thorpe, suggested by Ulf Möller]
188 *) Support for inhibitAnyPolicy certificate extension.
191 *) An audit of the BIGNUM code is underway, for which debugging code is
192 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
193 is considered valid when processing BIGNUMs, and causes execution to
194 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
195 further steps are taken to deliberately pollute unused data in BIGNUM
196 structures to try and expose faulty code further on. For now, openssl will
197 (in its default mode of operation) continue to tolerate the inconsistent
198 forms that it has tolerated in the past, but authors and packagers should
199 consider trying openssl and their own applications when compiled with
200 these debugging symbols defined. It will help highlight potential bugs in
201 their own code, and will improve the test coverage for OpenSSL itself. At
202 some point, these tighter rules will become openssl's default to improve
203 maintainability, though the assert()s and other overheads will remain only
204 in debugging configurations. See bn.h for more details.
205 [Geoff Thorpe, Nils Larsch, Ulf Möller]
207 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
208 that can only be obtained through BN_CTX_new() (which implicitly
209 initialises it). The presence of this function only made it possible
210 to overwrite an existing structure (and cause memory leaks).
213 *) Because of the callback-based approach for implementing LHASH as a
214 template type, lh_insert() adds opaque objects to hash-tables and
215 lh_doall() or lh_doall_arg() are typically used with a destructor callback
216 to clean up those corresponding objects before destroying the hash table
217 (and losing the object pointers). So some over-zealous constifications in
218 LHASH have been relaxed so that lh_insert() does not take (nor store) the
219 objects as "const" and the lh_doall[_arg] callback wrappers are not
220 prototyped to have "const" restrictions on the object pointers they are
221 given (and so aren't required to cast them away any more).
224 *) The tmdiff.h API was so ugly and minimal that our own timing utility
225 (speed) prefers to use its own implementation. The two implementations
226 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
227 its object type properly exposed (MS_TM) instead of casting to/from "char
228 *". This may still change yet if someone realises MS_TM and "ms_time_***"
229 aren't necessarily the greatest nomenclatures - but this is what was used
230 internally to the implementation so I've used that for now.
233 *) Ensure that deprecated functions do not get compiled when
234 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
235 the self-tests were still using deprecated key-generation functions so
236 these have been updated also.
239 *) Reorganise PKCS#7 code to separate the digest location functionality
240 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
241 New function PKCS7_set_digest() to set the digest type for PKCS#7
242 digestedData type. Add additional code to correctly generate the
243 digestedData type and add support for this type in PKCS7 initialization
247 *) New function PKCS7_set0_type_other() this initializes a PKCS7
248 structure of type "other".
251 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
252 sure the loop does correctly stop and breaking ("division by zero")
253 modulus operations are not performed. The (pre-generated) prime
254 table crypto/bn/bn_prime.h was already correct, but it could not be
255 re-generated on some platforms because of the "division by zero"
256 situation in the script.
257 [Ralf S. Engelschall]
259 *) Update support for ECC-based TLS ciphersuites according to
260 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
261 SHA-1 now is only used for "small" curves (where the
262 representation of a field element takes up to 24 bytes); for
263 larger curves, the field element resulting from ECDH is directly
264 used as premaster secret.
265 [Douglas Stebila (Sun Microsystems Laboratories)]
267 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
268 curve secp160r1 to the tests.
269 [Douglas Stebila (Sun Microsystems Laboratories)]
271 *) Add the possibility to load symbols globally with DSO.
272 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
274 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
275 control of the error stack.
278 *) Add support for STORE in ENGINE.
281 *) Add the STORE type. The intention is to provide a common interface
282 to certificate and key stores, be they simple file-based stores, or
283 HSM-type store, or LDAP stores, or...
284 NOTE: The code is currently UNTESTED and isn't really used anywhere.
287 *) Add a generic structure called OPENSSL_ITEM. This can be used to
288 pass a list of arguments to any function as well as provide a way
289 for a function to pass data back to the caller.
292 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
293 works like BUF_strdup() but can be used to duplicate a portion of
294 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
298 *) Add the function sk_find_ex() which works like sk_find(), but will
299 return an index to an element even if an exact match couldn't be
300 found. The index is guaranteed to point at the element where the
301 searched-for key would be inserted to preserve sorting order.
304 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
305 takes an extra flags argument for optional functionality. Currently,
306 the following flags are defined:
308 OBJ_BSEARCH_VALUE_ON_NOMATCH
309 This one gets OBJ_bsearch_ex() to return a pointer to the first
310 element where the comparing function returns a negative or zero
313 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
314 This one gets OBJ_bsearch_ex() to return a pointer to the first
315 element where the comparing function returns zero. This is useful
316 if there are more than one element where the comparing function
320 *) Make it possible to create self-signed certificates with 'openssl ca'
321 in such a way that the self-signed certificate becomes part of the
322 CA database and uses the same mechanisms for serial number generation
323 as all other certificate signing. The new flag '-selfsign' enables
324 this functionality. Adapt CA.sh and CA.pl.in.
327 *) Add functionality to check the public key of a certificate request
328 against a given private. This is useful to check that a certificate
329 request can be signed by that key (self-signing).
332 *) Make it possible to have multiple active certificates with the same
333 subject in the CA index file. This is done only if the keyword
334 'unique_subject' is set to 'no' in the main CA section (default
335 if 'CA_default') of the configuration file. The value is saved
336 with the database itself in a separate index attribute file,
337 named like the index file with '.attr' appended to the name.
340 *) Generate muti valued AVAs using '+' notation in config files for
344 *) Support for nameConstraints certificate extension.
347 *) Support for policyConstraints certificate extension.
350 *) Support for policyMappings certificate extension.
353 *) Make sure the default DSA_METHOD implementation only uses its
354 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
355 and change its own handlers to be NULL so as to remove unnecessary
356 indirection. This lets alternative implementations fallback to the
357 default implementation more easily.
360 *) Support for directoryName in GeneralName related extensions
364 *) Make it possible to link applications using Makefile.shared.
365 Make that possible even when linking against static libraries!
368 *) Support for single pass processing for S/MIME signing. This now
369 means that S/MIME signing can be done from a pipe, in addition
370 cleartext signing (multipart/signed type) is effectively streaming
371 and the signed data does not need to be all held in memory.
373 This is done with a new flag PKCS7_STREAM. When this flag is set
374 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
375 is done after the data is output (and digests calculated) in
379 *) Add full support for -rpath/-R, both in shared libraries and
380 applications, at least on the platforms where it's known how
384 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
385 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
386 will now compute a table of multiples of the generator that
387 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
388 faster (notably in the case of a single point multiplication,
390 [Nils Larsch, Bodo Moeller]
392 *) IPv6 support for certificate extensions. The various extensions
393 which use the IP:a.b.c.d can now take IPv6 addresses using the
394 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
398 *) Added an ENGINE that implements RSA by performing private key
399 exponentiations with the GMP library. The conversions to and from
400 GMP's mpz_t format aren't optimised nor are any montgomery forms
401 cached, and on x86 it appears OpenSSL's own performance has caught up.
402 However there are likely to be other architectures where GMP could
403 provide a boost. This ENGINE is not built in by default, but it can be
404 specified at Configure time and should be accompanied by the necessary
405 linker additions, eg;
406 ./config -DOPENSSL_USE_GMP -lgmp
409 *) "openssl engine" will not display ENGINE/DSO load failure errors when
410 testing availability of engines with "-t" - the old behaviour is
411 produced by increasing the feature's verbosity with "-tt".
414 *) ECDSA routines: under certain error conditions uninitialized BN objects
415 could be freed. Solution: make sure initialization is performed early
416 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
420 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
421 and DH_METHOD (eg. by ENGINE implementations) to override the normal
422 software implementations. For DSA and DH, parameter generation can
423 also be overriden by providing the appropriate method callbacks.
426 *) Change the "progress" mechanism used in key-generation and
427 primality testing to functions that take a new BN_GENCB pointer in
428 place of callback/argument pairs. The new API functions have "_ex"
429 postfixes and the older functions are reimplemented as wrappers for
430 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
431 declarations of the old functions to help (graceful) attempts to
432 migrate to the new functions. Also, the new key-generation API
433 functions operate on a caller-supplied key-structure and return
434 success/failure rather than returning a key or NULL - this is to
435 help make "keygen" another member function of RSA_METHOD etc.
437 Example for using the new callback interface:
439 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
443 BN_GENCB_set(&my_cb, my_callback, my_arg);
445 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
446 /* For the meaning of a, b in calls to my_callback(), see the
447 * documentation of the function that calls the callback.
448 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
449 * my_callback should return 1 if it wants BN_is_prime_ex()
450 * to continue, or 0 to stop.
455 *) Change the ZLIB compression method to be stateful, and make it
456 available to TLS with the number defined in
457 draft-ietf-tls-compression-04.txt.
460 *) Add the ASN.1 structures and functions for CertificatePair, which
461 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
463 CertificatePair ::= SEQUENCE {
464 forward [0] Certificate OPTIONAL,
465 reverse [1] Certificate OPTIONAL,
466 -- at least one of the pair shall be present -- }
468 Also implement the PEM functions to read and write certificate
469 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
471 This needed to be defined, mostly for the sake of the LDAP
472 attribute crossCertificatePair, but may prove useful elsewhere as
476 *) Make it possible to inhibit symlinking of shared libraries in
477 Makefile.shared, for Cygwin's sake.
480 *) Extend the BIGNUM API by creating a function
481 void BN_set_negative(BIGNUM *a, int neg);
482 and a macro that behave like
483 int BN_is_negative(const BIGNUM *a);
485 to avoid the need to access 'a->neg' directly in applications.
488 *) Implement fast modular reduction for pseudo-Mersenne primes
489 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
490 EC_GROUP_new_curve_GFp() will now automatically use this
492 [Nils Larsch <nla@trustcenter.de>]
494 *) Add new lock type (CRYPTO_LOCK_BN).
497 *) Change the ENGINE framework to automatically load engines
498 dynamically from specific directories unless they could be
499 found to already be built in or loaded. Move all the
500 current engines except for the cryptodev one to a new
502 The engines in engines/ are built as shared libraries if
503 the "shared" options was given to ./Configure or ./config.
504 Otherwise, they are inserted in libcrypto.a.
505 /usr/local/ssl/engines is the default directory for dynamic
506 engines, but that can be overriden at configure time through
507 the usual use of --prefix and/or --openssldir, and at run
508 time with the environment variable OPENSSL_ENGINES.
509 [Geoff Thorpe and Richard Levitte]
511 *) Add Makefile.shared, a helper makefile to build shared
512 libraries. Addapt Makefile.org.
515 *) Add version info to Win32 DLLs.
516 [Peter 'Luna' Runestig" <peter@runestig.com>]
518 *) Add new 'medium level' PKCS#12 API. Certificates and keys
519 can be added using this API to created arbitrary PKCS#12
520 files while avoiding the low level API.
522 New options to PKCS12_create(), key or cert can be NULL and
523 will then be omitted from the output file. The encryption
524 algorithm NIDs can be set to -1 for no encryption, the mac
525 iteration count can be set to 0 to omit the mac.
527 Enhance pkcs12 utility by making the -nokeys and -nocerts
528 options work when creating a PKCS#12 file. New option -nomac
529 to omit the mac, NONE can be set for an encryption algorithm.
530 New code is modified to use the enhanced PKCS12_create()
531 instead of the low level API.
534 *) Extend ASN1 encoder to support indefinite length constructed
535 encoding. This can output sequences tags and octet strings in
536 this form. Modify pk7_asn1.c to support indefinite length
537 encoding. This is experimental and needs additional code to
538 be useful, such as an ASN1 bio and some enhanced streaming
541 Extend template encode functionality so that tagging is passed
542 down to the template encoder.
545 *) Let 'openssl req' fail if an argument to '-newkey' is not
546 recognized instead of using RSA as a default.
549 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
550 As these are not official, they are not included in "ALL";
551 the "ECCdraft" ciphersuite group alias can be used to select them.
552 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
554 *) Add ECDH engine support.
555 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
557 *) Add ECDH in new directory crypto/ecdh/.
558 [Douglas Stebila (Sun Microsystems Laboratories)]
560 *) Let BN_rand_range() abort with an error after 100 iterations
561 without success (which indicates a broken PRNG).
564 *) Change BN_mod_sqrt() so that it verifies that the input value
565 is really the square of the return value. (Previously,
566 BN_mod_sqrt would show GIGO behaviour.)
569 *) Add named elliptic curves over binary fields from X9.62, SECG,
570 and WAP/WTLS; add OIDs that were still missing.
572 [Sheueling Chang Shantz and Douglas Stebila
573 (Sun Microsystems Laboratories)]
575 *) Extend the EC library for elliptic curves over binary fields
576 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
579 EC_GF2m_simple_method
583 EC_GROUP_new_curve_GF2m
584 EC_GROUP_set_curve_GF2m
585 EC_GROUP_get_curve_GF2m
586 EC_POINT_set_affine_coordinates_GF2m
587 EC_POINT_get_affine_coordinates_GF2m
588 EC_POINT_set_compressed_coordinates_GF2m
590 Point compression for binary fields is disabled by default for
591 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
594 As binary polynomials are represented as BIGNUMs, various members
595 of the EC_GROUP and EC_POINT data structures can be shared
596 between the implementations for prime fields and binary fields;
597 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
598 are essentially identical to their ..._GFp counterparts.
599 (For simplicity, the '..._GFp' prefix has been dropped from
600 various internal method names.)
602 An internal 'field_div' method (similar to 'field_mul' and
603 'field_sqr') has been added; this is used only for binary fields.
605 [Sheueling Chang Shantz and Douglas Stebila
606 (Sun Microsystems Laboratories)]
608 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
609 through methods ('mul', 'precompute_mult').
611 The generic implementations (now internally called 'ec_wNAF_mul'
612 and 'ec_wNAF_precomputed_mult') remain the default if these
613 methods are undefined.
615 [Sheueling Chang Shantz and Douglas Stebila
616 (Sun Microsystems Laboratories)]
618 *) New function EC_GROUP_get_degree, which is defined through
619 EC_METHOD. For curves over prime fields, this returns the bit
620 length of the modulus.
622 [Sheueling Chang Shantz and Douglas Stebila
623 (Sun Microsystems Laboratories)]
625 *) New functions EC_GROUP_dup, EC_POINT_dup.
626 (These simply call ..._new and ..._copy).
628 [Sheueling Chang Shantz and Douglas Stebila
629 (Sun Microsystems Laboratories)]
631 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
632 Polynomials are represented as BIGNUMs (where the sign bit is not
633 used) in the following functions [macros]:
636 BN_GF2m_sub [= BN_GF2m_add]
637 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
638 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
639 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
641 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
642 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
643 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
644 BN_GF2m_cmp [= BN_ucmp]
646 (Note that only the 'mod' functions are actually for fields GF(2^m).
647 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
649 For some functions, an the irreducible polynomial defining a
650 field can be given as an 'unsigned int[]' with strictly
651 decreasing elements giving the indices of those bits that are set;
652 i.e., p[] represents the polynomial
653 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
655 p[0] > p[1] > ... > p[k] = 0.
656 This applies to the following functions:
661 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
662 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
665 BN_GF2m_mod_solve_quad_arr
669 Conversion can be performed by the following functions:
674 bntest.c has additional tests for binary polynomial arithmetic.
676 Two implementations for BN_GF2m_mod_div() are available.
677 The default algorithm simply uses BN_GF2m_mod_inv() and
678 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
679 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
680 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
682 [Sheueling Chang Shantz and Douglas Stebila
683 (Sun Microsystems Laboratories)]
685 *) Add new error code 'ERR_R_DISABLED' that can be used when some
686 functionality is disabled at compile-time.
687 [Douglas Stebila <douglas.stebila@sun.com>]
689 *) Change default behaviour of 'openssl asn1parse' so that more
690 information is visible when viewing, e.g., a certificate:
692 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
693 mode the content of non-printable OCTET STRINGs is output in a
694 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
695 avoid the appearance of a printable string.
696 [Nils Larsch <nla@trustcenter.de>]
698 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
700 EC_GROUP_set_asn1_flag()
701 EC_GROUP_get_asn1_flag()
702 EC_GROUP_set_point_conversion_form()
703 EC_GROUP_get_point_conversion_form()
704 These control ASN1 encoding details:
705 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
706 has been set to OPENSSL_EC_NAMED_CURVE.
707 - Points are encoded in uncompressed form by default; options for
708 asn1_for are as for point2oct, namely
709 POINT_CONVERSION_COMPRESSED
710 POINT_CONVERSION_UNCOMPRESSED
711 POINT_CONVERSION_HYBRID
713 Also add 'seed' and 'seed_len' members to EC_GROUP with access
717 EC_GROUP_get_seed_len()
718 This is used only for ASN1 purposes (so far).
719 [Nils Larsch <nla@trustcenter.de>]
721 *) Add 'field_type' member to EC_METHOD, which holds the NID
722 of the appropriate field type OID. The new function
723 EC_METHOD_get_field_type() returns this value.
724 [Nils Larsch <nla@trustcenter.de>]
731 providing useful interfaces to EC_POINT_point2oct() and
732 EC_POINT_oct2point().
733 [Nils Larsch <nla@trustcenter.de>]
735 *) Change internals of the EC library so that the functions
736 EC_GROUP_set_generator()
737 EC_GROUP_get_generator()
739 EC_GROUP_get_cofactor()
740 are implemented directly in crypto/ec/ec_lib.c and not dispatched
741 to methods, which would lead to unnecessary code duplication when
742 adding different types of curves.
743 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
745 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
746 arithmetic, and such that modified wNAFs are generated
747 (which avoid length expansion in many cases).
750 *) Add a function EC_GROUP_check_discriminant() (defined via
751 EC_METHOD) that verifies that the curve discriminant is non-zero.
753 Add a function EC_GROUP_check() that makes some sanity tests
754 on a EC_GROUP, its generator and order. This includes
755 EC_GROUP_check_discriminant().
756 [Nils Larsch <nla@trustcenter.de>]
758 *) Add ECDSA in new directory crypto/ecdsa/.
760 Add applications 'openssl ecparam' and 'openssl ecdsa'
761 (these are based on 'openssl dsaparam' and 'openssl dsa').
763 ECDSA support is also included in various other files across the
764 library. Most notably,
765 - 'openssl req' now has a '-newkey ecdsa:file' option;
766 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
767 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
768 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
769 them suitable for ECDSA where domain parameters must be
770 extracted before the specific public key;
771 - ECDSA engine support has been added.
772 [Nils Larsch <nla@trustcenter.de>]
774 *) Include some named elliptic curves, and add OIDs from X9.62,
775 SECG, and WAP/WTLS. Each curve can be obtained from the new
777 EC_GROUP_new_by_nid(),
778 and the list of available named curves can be obtained with
779 EC_get_builtin_curves().
780 Also add a 'curve_name' member to EC_GROUP objects, which can be
784 [Nils Larsch <nla@trustcenter.de, Bodo Moeller]
786 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
787 was actually never needed) and in BN_mul(). The removal in BN_mul()
788 required a small change in bn_mul_part_recursive() and the addition
789 of the functions bn_cmp_part_words(), bn_sub_part_words() and
790 bn_add_part_words(), which do the same thing as bn_cmp_words(),
791 bn_sub_words() and bn_add_words() except they take arrays with
795 Changes between 0.9.7g and 0.9.7h [XX xxx XXXX]
797 *) Add support for smime-type MIME parameter in S/MIME messages which some
801 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
802 a threadsafe manner. Modify rsa code to use new function and add calls
803 to dsa and dh code (which had race conditions before).
806 *) Include the fixed error library code in the C error file definitions
807 instead of fixing them up at runtime. This keeps the error code
811 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
813 *) Fixes for newer kerberos headers. NB: the casts are needed because
814 the 'length' field is signed on one version and unsigned on another
815 with no (?) obvious way to tell the difference, without these VC++
816 complains. Also the "definition" of FAR (blank) is no longer included
817 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
818 some needed definitions.
821 *) Undo Cygwin change.
824 *) Added support for proxy certificates according to RFC 3820.
825 Because they may be a security thread to unaware applications,
826 they must be explicitely allowed in run-time. See
827 docs/HOWTO/proxy_certificates.txt for further information.
830 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
832 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
833 server and client random values. Previously
834 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
835 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
837 This change has negligible security impact because:
839 1. Server and client random values still have 24 bytes of pseudo random
842 2. Server and client random values are sent in the clear in the initial
845 3. The master secret is derived using the premaster secret (48 bytes in
846 size for static RSA ciphersuites) as well as client server and random
849 The OpenSSL team would like to thank the UK NISCC for bringing this issue
852 [Stephen Henson, reported by UK NISCC]
854 *) Use Windows randomness collection on Cygwin.
857 *) Fix hang in EGD/PRNGD query when communication socket is closed
858 prematurely by EGD/PRNGD.
859 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
861 *) Prompt for pass phrases when appropriate for PKCS12 input format.
864 *) Back-port of selected performance improvements from development
865 branch, as well as improved support for PowerPC platforms.
868 *) Add lots of checks for memory allocation failure, error codes to indicate
869 failure and freeing up memory if a failure occurs.
870 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
872 *) Add new -passin argument to dgst.
875 *) Perform some character comparisons of different types in X509_NAME_cmp:
876 this is needed for some certificates that reencode DNs into UTF8Strings
877 (in violation of RFC3280) and can't or wont issue name rollover
881 *) Make an explicit check during certificate validation to see that
882 the CA setting in each certificate on the chain is correct. As a
883 side effect always do the following basic checks on extensions,
884 not just when there's an associated purpose to the check:
886 - if there is an unhandled critical extension (unless the user
887 has chosen to ignore this fault)
888 - if the path length has been exceeded (if one is set at all)
889 - that certain extensions fit the associated purpose (if one has
893 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
895 *) Avoid a race condition when CRLs are checked in a multi threaded
896 environment. This would happen due to the reordering of the revoked
897 entries during signature checking and serial number lookup. Now the
898 encoding is cached and the serial number sort performed under a lock.
899 Add new STACK function sk_is_sorted().
902 *) Add Delta CRL to the extension code.
905 *) Various fixes to s3_pkt.c so alerts are sent properly.
906 [David Holmes <d.holmes@f5.com>]
908 *) Reduce the chances of duplicate issuer name and serial numbers (in
909 violation of RFC3280) using the OpenSSL certificate creation utilities.
910 This is done by creating a random 64 bit value for the initial serial
911 number when a serial number file is created or when a self signed
912 certificate is created using 'openssl req -x509'. The initial serial
913 number file is created using 'openssl x509 -next_serial' in CA.pl
914 rather than being initialized to 1.
917 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
919 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
920 by using the Codenomicon TLS Test Tool (CAN-2004-0079)
921 [Joe Orton, Steve Henson]
923 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
925 [Joe Orton, Steve Henson]
927 *) Make it possible to have multiple active certificates with the same
928 subject in the CA index file. This is done only if the keyword
929 'unique_subject' is set to 'no' in the main CA section (default
930 if 'CA_default') of the configuration file. The value is saved
931 with the database itself in a separate index attribute file,
932 named like the index file with '.attr' appended to the name.
935 *) X509 verify fixes. Disable broken certificate workarounds when
936 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
937 keyUsage extension present. Don't accept CRLs with unhandled critical
938 extensions: since verify currently doesn't process CRL extensions this
939 rejects a CRL with *any* critical extensions. Add new verify error codes
943 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
944 A clarification of RFC2560 will require the use of OCTET STRINGs and
945 some implementations cannot handle the current raw format. Since OpenSSL
946 copies and compares OCSP nonces as opaque blobs without any attempt at
947 parsing them this should not create any compatibility issues.
950 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
951 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
952 this HMAC (and other) operations are several times slower than OpenSSL
956 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
957 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
959 *) Use the correct content when signing type "other".
962 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
964 *) Fix various bugs revealed by running the NISCC test suite:
966 Stop out of bounds reads in the ASN1 code when presented with
967 invalid tags (CAN-2003-0543 and CAN-2003-0544).
969 Free up ASN1_TYPE correctly if ANY type is invalid (CAN-2003-0545).
971 If verify callback ignores invalid public key errors don't try to check
972 certificate signature with the NULL public key.
976 *) New -ignore_err option in ocsp application to stop the server
977 exiting on the first error in a request.
980 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
981 if the server requested one: as stated in TLS 1.0 and SSL 3.0
985 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
986 extra data after the compression methods not only for TLS 1.0
987 but also for SSL 3.0 (as required by the specification).
988 [Bodo Moeller; problem pointed out by Matthias Loepfe]
990 *) Change X509_certificate_type() to mark the key as exported/exportable
991 when it's 512 *bits* long, not 512 bytes.
994 *) Change AES_cbc_encrypt() so it outputs exact multiple of
995 blocks during encryption.
998 *) Various fixes to base64 BIO and non blocking I/O. On write
999 flushes were not handled properly if the BIO retried. On read
1000 data was not being buffered properly and had various logic bugs.
1001 This also affects blocking I/O when the data being decoded is a
1005 *) Various S/MIME bugfixes and compatibility changes:
1006 output correct application/pkcs7 MIME type if
1007 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
1008 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
1009 of files as .eml work). Correctly handle very long lines in MIME
1013 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
1015 *) Countermeasure against the Klima-Pokorny-Rosa extension of
1016 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
1017 a protocol version number mismatch like a decryption error
1018 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
1021 *) Turn on RSA blinding by default in the default implementation
1022 to avoid a timing attack. Applications that don't want it can call
1023 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
1024 They would be ill-advised to do so in most cases.
1025 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
1027 *) Change RSA blinding code so that it works when the PRNG is not
1028 seeded (in this case, the secret RSA exponent is abused as
1029 an unpredictable seed -- if it is not unpredictable, there
1030 is no point in blinding anyway). Make RSA blinding thread-safe
1031 by remembering the creator's thread ID in rsa->blinding and
1032 having all other threads use local one-time blinding factors
1033 (this requires more computation than sharing rsa->blinding, but
1034 avoids excessive locking; and if an RSA object is not shared
1035 between threads, blinding will still be very fast).
1038 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
1039 ENGINE as defaults for all supported algorithms irrespective of
1040 the 'flags' parameter. 'flags' is now honoured, so applications
1041 should make sure they are passing it correctly.
1044 *) Target "mingw" now allows native Windows code to be generated in
1045 the Cygwin environment as well as with the MinGW compiler.
1048 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
1050 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
1051 via timing by performing a MAC computation even if incorrrect
1052 block cipher padding has been found. This is a countermeasure
1053 against active attacks where the attacker has to distinguish
1054 between bad padding and a MAC verification error. (CAN-2003-0078)
1056 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
1057 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
1058 Martin Vuagnoux (EPFL, Ilion)]
1060 *) Make the no-err option work as intended. The intention with no-err
1061 is not to have the whole error stack handling routines removed from
1062 libcrypto, it's only intended to remove all the function name and
1063 reason texts, thereby removing some of the footprint that may not
1064 be interesting if those errors aren't displayed anyway.
1066 NOTE: it's still possible for any application or module to have it's
1067 own set of error texts inserted. The routines are there, just not
1068 used by default when no-err is given.
1071 *) Add support for FreeBSD on IA64.
1072 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
1074 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
1075 Kerberos function mit_des_cbc_cksum(). Before this change,
1076 the value returned by DES_cbc_cksum() was like the one from
1077 mit_des_cbc_cksum(), except the bytes were swapped.
1078 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
1080 *) Allow an application to disable the automatic SSL chain building.
1081 Before this a rather primitive chain build was always performed in
1082 ssl3_output_cert_chain(): an application had no way to send the
1083 correct chain if the automatic operation produced an incorrect result.
1085 Now the chain builder is disabled if either:
1087 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
1089 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
1091 The reasoning behind this is that an application would not want the
1092 auto chain building to take place if extra chain certificates are
1093 present and it might also want a means of sending no additional
1094 certificates (for example the chain has two certificates and the
1098 *) Add the possibility to build without the ENGINE framework.
1099 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1101 *) Under Win32 gmtime() can return NULL: check return value in
1102 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
1105 *) DSA routines: under certain error conditions uninitialized BN objects
1106 could be freed. Solution: make sure initialization is performed early
1107 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
1108 Nils Larsch <nla@trustcenter.de> via PR#459)
1111 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
1112 checked on reconnect on the client side, therefore session resumption
1113 could still fail with a "ssl session id is different" error. This
1114 behaviour is masked when SSL_OP_ALL is used due to
1115 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
1116 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1117 followup to PR #377.
1120 *) IA-32 assembler support enhancements: unified ELF targets, support
1121 for SCO/Caldera platforms, fix for Cygwin shared build.
1124 *) Add support for FreeBSD on sparc64. As a consequence, support for
1125 FreeBSD on non-x86 processors is separate from x86 processors on
1126 the config script, much like the NetBSD support.
1127 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
1129 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
1131 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
1134 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
1135 code (06) was taken as the first octet of the session ID and the last
1136 octet was ignored consequently. As a result SSLv2 client side session
1137 caching could not have worked due to the session ID mismatch between
1139 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1143 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
1144 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
1148 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
1149 seems that in spite of existing for more than a year, many application
1150 author have done nothing to provide the necessary callbacks, which
1151 means that this particular engine will not work properly anywhere.
1152 This is a very unfortunate situation which forces us, in the name
1153 of usability, to give the hw_ncipher.c a static lock, which is part
1155 NOTE: This is for the 0.9.7 series ONLY. This hack will never
1156 appear in 0.9.8 or later. We EXPECT application authors to have
1157 dealt properly with this when 0.9.8 is released (unless we actually
1158 make such changes in the libcrypto locking code that changes will
1159 have to be made anyway).
1162 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
1163 octets have been read, EOF or an error occurs. Without this change
1164 some truncated ASN1 structures will not produce an error.
1167 *) Disable Heimdal support, since it hasn't been fully implemented.
1168 Still give the possibility to force the use of Heimdal, but with
1169 warnings and a request that patches get sent to openssl-dev.
1172 *) Add the VC-CE target, introduce the WINCE sysname, and add
1173 INSTALL.WCE and appropriate conditionals to make it build.
1174 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1176 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
1177 cygssl-x.y.z.dll, where x, y and z are the major, minor and
1178 edit numbers of the version.
1179 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
1181 *) Introduce safe string copy and catenation functions
1182 (BUF_strlcpy() and BUF_strlcat()).
1183 [Ben Laurie (CHATS) and Richard Levitte]
1185 *) Avoid using fixed-size buffers for one-line DNs.
1186 [Ben Laurie (CHATS)]
1188 *) Add BUF_MEM_grow_clean() to avoid information leakage when
1189 resizing buffers containing secrets, and use where appropriate.
1190 [Ben Laurie (CHATS)]
1192 *) Avoid using fixed size buffers for configuration file location.
1193 [Ben Laurie (CHATS)]
1195 *) Avoid filename truncation for various CA files.
1196 [Ben Laurie (CHATS)]
1198 *) Use sizeof in preference to magic numbers.
1199 [Ben Laurie (CHATS)]
1201 *) Avoid filename truncation in cert requests.
1202 [Ben Laurie (CHATS)]
1204 *) Add assertions to check for (supposedly impossible) buffer
1206 [Ben Laurie (CHATS)]
1208 *) Don't cache truncated DNS entries in the local cache (this could
1209 potentially lead to a spoofing attack).
1210 [Ben Laurie (CHATS)]
1212 *) Fix various buffers to be large enough for hex/decimal
1213 representations in a platform independent manner.
1214 [Ben Laurie (CHATS)]
1216 *) Add CRYPTO_realloc_clean() to avoid information leakage when
1217 resizing buffers containing secrets, and use where appropriate.
1218 [Ben Laurie (CHATS)]
1220 *) Add BIO_indent() to avoid much slightly worrying code to do
1222 [Ben Laurie (CHATS)]
1224 *) Convert sprintf()/BIO_puts() to BIO_printf().
1225 [Ben Laurie (CHATS)]
1227 *) buffer_gets() could terminate with the buffer only half
1229 [Ben Laurie (CHATS)]
1231 *) Add assertions to prevent user-supplied crypto functions from
1232 overflowing internal buffers by having large block sizes, etc.
1233 [Ben Laurie (CHATS)]
1235 *) New OPENSSL_assert() macro (similar to assert(), but enabled
1237 [Ben Laurie (CHATS)]
1239 *) Eliminate unused copy of key in RC4.
1240 [Ben Laurie (CHATS)]
1242 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
1243 [Ben Laurie (CHATS)]
1245 *) Fix off-by-one error in EGD path.
1246 [Ben Laurie (CHATS)]
1248 *) If RANDFILE path is too long, ignore instead of truncating.
1249 [Ben Laurie (CHATS)]
1251 *) Eliminate unused and incorrectly sized X.509 structure
1253 [Ben Laurie (CHATS)]
1255 *) Eliminate unused and dangerous function knumber().
1256 [Ben Laurie (CHATS)]
1258 *) Eliminate unused and dangerous structure, KSSL_ERR.
1259 [Ben Laurie (CHATS)]
1261 *) Protect against overlong session ID context length in an encoded
1262 session object. Since these are local, this does not appear to be
1264 [Ben Laurie (CHATS)]
1266 *) Change from security patch (see 0.9.6e below) that did not affect
1267 the 0.9.6 release series:
1269 Remote buffer overflow in SSL3 protocol - an attacker could
1270 supply an oversized master key in Kerberos-enabled versions.
1272 [Ben Laurie (CHATS)]
1274 *) Change the SSL kerb5 codes to match RFC 2712.
1277 *) Make -nameopt work fully for req and add -reqopt switch.
1278 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
1280 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
1281 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
1283 *) Make sure tests can be performed even if the corresponding algorithms
1284 have been removed entirely. This was also the last step to make
1285 OpenSSL compilable with DJGPP under all reasonable conditions.
1286 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
1288 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
1289 to allow version independent disabling of normally unselected ciphers,
1290 which may be activated as a side-effect of selecting a single cipher.
1292 (E.g., cipher list string "RSA" enables ciphersuites that are left
1293 out of "ALL" because they do not provide symmetric encryption.
1294 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
1295 [Lutz Jaenicke, Bodo Moeller]
1297 *) Add appropriate support for separate platform-dependent build
1298 directories. The recommended way to make a platform-dependent
1299 build directory is the following (tested on Linux), maybe with
1302 # Place yourself outside of the OpenSSL source tree. In
1303 # this example, the environment variable OPENSSL_SOURCE
1304 # is assumed to contain the absolute OpenSSL source directory.
1305 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
1306 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
1307 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
1308 mkdir -p `dirname $F`
1309 ln -s $OPENSSL_SOURCE/$F $F
1312 To be absolutely sure not to disturb the source tree, a "make clean"
1313 is a good thing. If it isn't successfull, don't worry about it,
1314 it probably means the source directory is very clean.
1317 *) Make sure any ENGINE control commands make local copies of string
1318 pointers passed to them whenever necessary. Otherwise it is possible
1319 the caller may have overwritten (or deallocated) the original string
1320 data when a later ENGINE operation tries to use the stored values.
1321 [Götz Babin-Ebell <babinebell@trustcenter.de>]
1323 *) Improve diagnostics in file reading and command-line digests.
1324 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
1326 *) Add AES modes CFB and OFB to the object database. Correct an
1327 error in AES-CFB decryption.
1330 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
1331 allows existing EVP_CIPHER_CTX structures to be reused after
1332 calling EVP_*Final(). This behaviour is used by encryption
1333 BIOs and some applications. This has the side effect that
1334 applications must explicitly clean up cipher contexts with
1335 EVP_CIPHER_CTX_cleanup() or they will leak memory.
1338 *) Check the values of dna and dnb in bn_mul_recursive before calling
1339 bn_mul_comba (a non zero value means the a or b arrays do not contain
1340 n2 elements) and fallback to bn_mul_normal if either is not zero.
1343 *) Fix escaping of non-ASCII characters when using the -subj option
1344 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
1347 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
1348 form for "surname", serialNumber has no short form.
1349 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
1350 therefore remove "mail" short name for "internet 7".
1351 The OID for unique identifiers in X509 certificates is
1352 x500UniqueIdentifier, not uniqueIdentifier.
1353 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
1356 *) Add an "init" command to the ENGINE config module and auto initialize
1357 ENGINEs. Without any "init" command the ENGINE will be initialized
1358 after all ctrl commands have been executed on it. If init=1 the
1359 ENGINE is initailized at that point (ctrls before that point are run
1360 on the uninitialized ENGINE and after on the initialized one). If
1361 init=0 then the ENGINE will not be iniatialized at all.
1364 *) Fix the 'app_verify_callback' interface so that the user-defined
1365 argument is actually passed to the callback: In the
1366 SSL_CTX_set_cert_verify_callback() prototype, the callback
1367 declaration has been changed from
1370 int (*cb)(X509_STORE_CTX *,void *);
1371 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
1372 i=s->ctx->app_verify_callback(&ctx)
1373 has been changed into
1374 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
1376 To update applications using SSL_CTX_set_cert_verify_callback(),
1377 a dummy argument can be added to their callback functions.
1378 [D. K. Smetters <smetters@parc.xerox.com>]
1380 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
1381 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
1383 *) Add and OPENSSL_LOAD_CONF define which will cause
1384 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
1385 This allows older applications to transparently support certain
1386 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
1387 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
1388 load the config file and OPENSSL_add_all_algorithms_conf() which will
1389 always load it have also been added.
1392 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
1393 Adjust NIDs and EVP layer.
1394 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
1396 *) Config modules support in openssl utility.
1398 Most commands now load modules from the config file,
1399 though in a few (such as version) this isn't done
1400 because it couldn't be used for anything.
1402 In the case of ca and req the config file used is
1403 the same as the utility itself: that is the -config
1404 command line option can be used to specify an
1408 *) Move default behaviour from OPENSSL_config(). If appname is NULL
1409 use "openssl_conf" if filename is NULL use default openssl config file.
1412 *) Add an argument to OPENSSL_config() to allow the use of an alternative
1413 config section name. Add a new flag to tolerate a missing config file
1414 and move code to CONF_modules_load_file().
1417 *) Support for crypto accelerator cards from Accelerated Encryption
1418 Processing, www.aep.ie. (Use engine 'aep')
1419 The support was copied from 0.9.6c [engine] and adapted/corrected
1420 to work with the new engine framework.
1421 [AEP Inc. and Richard Levitte]
1423 *) Support for SureWare crypto accelerator cards from Baltimore
1424 Technologies. (Use engine 'sureware')
1425 The support was copied from 0.9.6c [engine] and adapted
1426 to work with the new engine framework.
1429 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
1430 make the newer ENGINE framework commands for the CHIL engine work.
1431 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
1433 *) Make it possible to produce shared libraries on ReliantUNIX.
1434 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
1436 *) Add the configuration target debug-linux-ppro.
1437 Make 'openssl rsa' use the general key loading routines
1438 implemented in apps.c, and make those routines able to
1439 handle the key format FORMAT_NETSCAPE and the variant
1441 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
1443 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
1444 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
1446 *) Add -keyform to rsautl, and document -engine.
1447 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
1449 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
1450 BIO_R_NO_SUCH_FILE error code rather than the generic
1451 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
1454 *) Add new functions
1456 ERR_peek_last_error_line
1457 ERR_peek_last_error_line_data.
1458 These are similar to
1461 ERR_peek_error_line_data,
1462 but report on the latest error recorded rather than the first one
1463 still in the error queue.
1464 [Ben Laurie, Bodo Moeller]
1466 *) default_algorithms option in ENGINE config module. This allows things
1468 default_algorithms = ALL
1469 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
1472 *) Prelminary ENGINE config module.
1475 *) New experimental application configuration code.
1478 *) Change the AES code to follow the same name structure as all other
1479 symmetric ciphers, and behave the same way. Move everything to
1480 the directory crypto/aes, thereby obsoleting crypto/rijndael.
1481 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
1483 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
1484 [Ben Laurie and Theo de Raadt]
1486 *) Add option to output public keys in req command.
1487 [Massimiliano Pala madwolf@openca.org]
1489 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
1490 (up to about 10% better than before for P-192 and P-224).
1493 *) New functions/macros
1495 SSL_CTX_set_msg_callback(ctx, cb)
1496 SSL_CTX_set_msg_callback_arg(ctx, arg)
1497 SSL_set_msg_callback(ssl, cb)
1498 SSL_set_msg_callback_arg(ssl, arg)
1500 to request calling a callback function
1502 void cb(int write_p, int version, int content_type,
1503 const void *buf, size_t len, SSL *ssl, void *arg)
1505 whenever a protocol message has been completely received
1506 (write_p == 0) or sent (write_p == 1). Here 'version' is the
1507 protocol version according to which the SSL library interprets
1508 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
1509 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
1510 the content type as defined in the SSL 3.0/TLS 1.0 protocol
1511 specification (change_cipher_spec(20), alert(21), handshake(22)).
1512 'buf' and 'len' point to the actual message, 'ssl' to the
1513 SSL object, and 'arg' is the application-defined value set by
1514 SSL[_CTX]_set_msg_callback_arg().
1516 'openssl s_client' and 'openssl s_server' have new '-msg' options
1517 to enable a callback that displays all protocol messages.
1520 *) Change the shared library support so shared libraries are built as
1521 soon as the corresponding static library is finished, and thereby get
1522 openssl and the test programs linked against the shared library.
1523 This still only happens when the keyword "shard" has been given to
1524 the configuration scripts.
1526 NOTE: shared library support is still an experimental thing, and
1527 backward binary compatibility is still not guaranteed.
1528 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
1530 *) Add support for Subject Information Access extension.
1531 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1533 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
1534 additional bytes when new memory had to be allocated, not just
1535 when reusing an existing buffer.
1538 *) New command line and configuration option 'utf8' for the req command.
1539 This allows field values to be specified as UTF8 strings.
1542 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
1543 runs for the former and machine-readable output for the latter.
1546 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
1547 of the e-mail address in the DN (i.e., it will go into a certificate
1548 extension only). The new configuration file option 'email_in_dn = no'
1549 has the same effect.
1550 [Massimiliano Pala madwolf@openca.org]
1552 *) Change all functions with names starting with des_ to be starting
1553 with DES_ instead. Add wrappers that are compatible with libdes,
1554 but are named _ossl_old_des_*. Finally, add macros that map the
1555 des_* symbols to the corresponding _ossl_old_des_* if libdes
1556 compatibility is desired. If OpenSSL 0.9.6c compatibility is
1557 desired, the des_* symbols will be mapped to DES_*, with one
1560 Since we provide two compatibility mappings, the user needs to
1561 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
1562 compatibility is desired. The default (i.e., when that macro
1563 isn't defined) is OpenSSL 0.9.6c compatibility.
1565 There are also macros that enable and disable the support of old
1566 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
1567 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
1568 are defined, the default will apply: to support the old des routines.
1570 In either case, one must include openssl/des.h to get the correct
1571 definitions. Do not try to just include openssl/des_old.h, that
1574 NOTE: This is a major break of an old API into a new one. Software
1575 authors are encouraged to switch to the DES_ style functions. Some
1576 time in the future, des_old.h and the libdes compatibility functions
1577 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
1578 default), and then completely removed.
1581 *) Test for certificates which contain unsupported critical extensions.
1582 If such a certificate is found during a verify operation it is
1583 rejected by default: this behaviour can be overridden by either
1584 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
1585 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
1586 X509_supported_extension() has also been added which returns 1 if a
1587 particular extension is supported.
1590 *) Modify the behaviour of EVP cipher functions in similar way to digests
1591 to retain compatibility with existing code.
1594 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
1595 compatibility with existing code. In particular the 'ctx' parameter does
1596 not have to be to be initialized before the call to EVP_DigestInit() and
1597 it is tidied up after a call to EVP_DigestFinal(). New function
1598 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
1599 EVP_MD_CTX_copy() changed to not require the destination to be
1600 initialized valid and new function EVP_MD_CTX_copy_ex() added which
1601 requires the destination to be valid.
1603 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
1604 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
1607 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
1608 so that complete 'Handshake' protocol structures are kept in memory
1609 instead of overwriting 'msg_type' and 'length' with 'body' data.
1612 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
1613 [Massimo Santin via Richard Levitte]
1615 *) Major restructuring to the underlying ENGINE code. This includes
1616 reduction of linker bloat, separation of pure "ENGINE" manipulation
1617 (initialisation, etc) from functionality dealing with implementations
1618 of specific crypto iterfaces. This change also introduces integrated
1619 support for symmetric ciphers and digest implementations - so ENGINEs
1620 can now accelerate these by providing EVP_CIPHER and EVP_MD
1621 implementations of their own. This is detailed in crypto/engine/README
1622 as it couldn't be adequately described here. However, there are a few
1623 API changes worth noting - some RSA, DSA, DH, and RAND functions that
1624 were changed in the original introduction of ENGINE code have now
1625 reverted back - the hooking from this code to ENGINE is now a good
1626 deal more passive and at run-time, operations deal directly with
1627 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
1628 dereferencing through an ENGINE pointer any more. Also, the ENGINE
1629 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
1630 they were not being used by the framework as there is no concept of a
1631 BIGNUM_METHOD and they could not be generalised to the new
1632 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
1633 ENGINE_cpy() has been removed as it cannot be consistently defined in
1637 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
1640 *) Change mkdef.pl to sort symbols that get the same entry number,
1641 and make sure the automatically generated functions ERR_load_*
1642 become part of libeay.num as well.
1645 *) New function SSL_renegotiate_pending(). This returns true once
1646 renegotiation has been requested (either SSL_renegotiate() call
1647 or HelloRequest/ClientHello receveived from the peer) and becomes
1648 false once a handshake has been completed.
1649 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
1650 sends a HelloRequest, but does not ensure that a handshake takes
1651 place. SSL_renegotiate_pending() is useful for checking if the
1652 client has followed the request.)
1655 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
1656 By default, clients may request session resumption even during
1657 renegotiation (if session ID contexts permit); with this option,
1658 session resumption is possible only in the first handshake.
1660 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
1661 more bits available for options that should not be part of
1662 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
1665 *) Add some demos for certificate and certificate request creation.
1668 *) Make maximum certificate chain size accepted from the peer application
1669 settable (SSL*_get/set_max_cert_list()), as proposed by
1670 "Douglas E. Engert" <deengert@anl.gov>.
1673 *) Add support for shared libraries for Unixware-7
1674 (Boyd Lynn Gerber <gerberb@zenez.com>).
1677 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
1678 be done prior to destruction. Use this to unload error strings from
1679 ENGINEs that load their own error strings. NB: This adds two new API
1680 functions to "get" and "set" this destroy handler in an ENGINE.
1683 *) Alter all existing ENGINE implementations (except "openssl" and
1684 "openbsd") to dynamically instantiate their own error strings. This
1685 makes them more flexible to be built both as statically-linked ENGINEs
1686 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
1687 Also, add stub code to each that makes building them as self-contained
1688 shared-libraries easier (see README.ENGINE).
1691 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
1692 implementations into applications that are completely implemented in
1693 self-contained shared-libraries. The "dynamic" ENGINE exposes control
1694 commands that can be used to configure what shared-library to load and
1695 to control aspects of the way it is handled. Also, made an update to
1696 the README.ENGINE file that brings its information up-to-date and
1697 provides some information and instructions on the "dynamic" ENGINE
1698 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
1701 *) Make it possible to unload ranges of ERR strings with a new
1702 "ERR_unload_strings" function.
1705 *) Add a copy() function to EVP_MD.
1708 *) Make EVP_MD routines take a context pointer instead of just the
1709 md_data void pointer.
1712 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
1713 that the digest can only process a single chunk of data
1714 (typically because it is provided by a piece of
1715 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
1716 is only going to provide a single chunk of data, and hence the
1717 framework needn't accumulate the data for oneshot drivers.
1720 *) As with "ERR", make it possible to replace the underlying "ex_data"
1721 functions. This change also alters the storage and management of global
1722 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
1723 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
1724 index counters. The API functions that use this state have been changed
1725 to take a "class_index" rather than pointers to the class's local STACK
1726 and counter, and there is now an API function to dynamically create new
1727 classes. This centralisation allows us to (a) plug a lot of the
1728 thread-safety problems that existed, and (b) makes it possible to clean
1729 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
1730 such data would previously have always leaked in application code and
1731 workarounds were in place to make the memory debugging turn a blind eye
1732 to it. Application code that doesn't use this new function will still
1733 leak as before, but their memory debugging output will announce it now
1734 rather than letting it slide.
1736 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
1737 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
1738 has a return value to indicate success or failure.
1741 *) Make it possible to replace the underlying "ERR" functions such that the
1742 global state (2 LHASH tables and 2 locks) is only used by the "default"
1743 implementation. This change also adds two functions to "get" and "set"
1744 the implementation prior to it being automatically set the first time
1745 any other ERR function takes place. Ie. an application can call "get",
1746 pass the return value to a module it has just loaded, and that module
1747 can call its own "set" function using that value. This means the
1748 module's "ERR" operations will use (and modify) the error state in the
1749 application and not in its own statically linked copy of OpenSSL code.
1752 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
1753 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
1754 the operation, and provides a more encapsulated way for external code
1755 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
1756 to use these functions rather than manually incrementing the counts.
1758 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
1761 *) Add EVP test program.
1764 *) Add symmetric cipher support to ENGINE. Expect the API to change!
1767 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
1768 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
1769 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
1770 These allow a CRL to be built without having to access X509_CRL fields
1771 directly. Modify 'ca' application to use new functions.
1774 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
1775 bug workarounds. Rollback attack detection is a security feature.
1776 The problem will only arise on OpenSSL servers when TLSv1 is not
1777 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
1778 Software authors not wanting to support TLSv1 will have special reasons
1779 for their choice and can explicitly enable this option.
1780 [Bodo Moeller, Lutz Jaenicke]
1782 *) Rationalise EVP so it can be extended: don't include a union of
1783 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
1784 (similar to those existing for EVP_CIPHER_CTX).
1789 EVP_MD_CTX_init(&md); /* new function call */
1790 EVP_DigestInit(&md, EVP_sha1());
1791 EVP_DigestUpdate(&md, in, len);
1792 EVP_DigestFinal(&md, out, NULL);
1793 EVP_MD_CTX_cleanup(&md); /* new function call */
1797 *) Make DES key schedule conform to the usual scheme, as well as
1798 correcting its structure. This means that calls to DES functions
1799 now have to pass a pointer to a des_key_schedule instead of a
1800 plain des_key_schedule (which was actually always a pointer
1803 des_key_schedule ks;
1805 des_set_key_checked(..., &ks);
1806 des_ncbc_encrypt(..., &ks, ...);
1808 (Note that a later change renames 'des_...' into 'DES_...'.)
1811 *) Initial reduction of linker bloat: the use of some functions, such as
1812 PEM causes large amounts of unused functions to be linked in due to
1813 poor organisation. For example pem_all.c contains every PEM function
1814 which has a knock on effect of linking in large amounts of (unused)
1815 ASN1 code. Grouping together similar functions and splitting unrelated
1816 functions prevents this.
1819 *) Cleanup of EVP macros.
1822 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
1823 correct _ecb suffix.
1826 *) Add initial OCSP responder support to ocsp application. The
1827 revocation information is handled using the text based index
1828 use by the ca application. The responder can either handle
1829 requests generated internally, supplied in files (for example
1830 via a CGI script) or using an internal minimal server.
1833 *) Add configuration choices to get zlib compression for TLS.
1836 *) Changes to Kerberos SSL for RFC 2712 compliance:
1837 1. Implemented real KerberosWrapper, instead of just using
1838 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
1839 2. Implemented optional authenticator field of KerberosWrapper.
1841 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
1842 and authenticator structs; see crypto/krb5/.
1844 Generalized Kerberos calls to support multiple Kerberos libraries.
1845 [Vern Staats <staatsvr@asc.hpc.mil>,
1846 Jeffrey Altman <jaltman@columbia.edu>
1847 via Richard Levitte]
1849 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
1850 already does with RSA. testdsa.h now has 'priv_key/pub_key'
1851 values for each of the key sizes rather than having just
1852 parameters (and 'speed' generating keys each time).
1855 *) Speed up EVP routines.
1858 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
1859 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
1860 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
1861 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
1863 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
1864 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
1865 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
1868 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
1870 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
1873 *) Added the OS2-EMX target.
1874 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
1876 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
1877 to support NCONF routines in extension code. New function CONF_set_nconf()
1878 to allow functions which take an NCONF to also handle the old LHASH
1879 structure: this means that the old CONF compatible routines can be
1880 retained (in particular wrt extensions) without having to duplicate the
1881 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
1884 *) Enhance the general user interface with mechanisms for inner control
1885 and with possibilities to have yes/no kind of prompts.
1888 *) Change all calls to low level digest routines in the library and
1889 applications to use EVP. Add missing calls to HMAC_cleanup() and
1890 don't assume HMAC_CTX can be copied using memcpy().
1891 [Verdon Walker <VWalker@novell.com>, Steve Henson]
1893 *) Add the possibility to control engines through control names but with
1894 arbitrary arguments instead of just a string.
1895 Change the key loaders to take a UI_METHOD instead of a callback
1896 function pointer. NOTE: this breaks binary compatibility with earlier
1897 versions of OpenSSL [engine].
1898 Adapt the nCipher code for these new conditions and add a card insertion
1902 *) Enhance the general user interface with mechanisms to better support
1903 dialog box interfaces, application-defined prompts, the possibility
1904 to use defaults (for example default passwords from somewhere else)
1905 and interrupts/cancellations.
1908 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
1909 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
1912 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
1913 tidy up some unnecessarily weird code in 'sk_new()').
1914 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
1916 *) Change the key loading routines for ENGINEs to use the same kind
1917 callback (pem_password_cb) as all other routines that need this
1921 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
1922 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
1923 than this minimum value is recommended.
1926 *) New random seeder for OpenVMS, using the system process statistics
1927 that are easily reachable.
1930 *) Windows apparently can't transparently handle global
1931 variables defined in DLLs. Initialisations such as:
1933 const ASN1_ITEM *it = &ASN1_INTEGER_it;
1935 wont compile. This is used by the any applications that need to
1936 declare their own ASN1 modules. This was fixed by adding the option
1937 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
1938 needed for static libraries under Win32.
1941 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
1942 setting of purpose and trust fields. New X509_STORE trust and
1943 purpose functions and tidy up setting in other SSL functions.
1946 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
1947 structure. These are inherited by X509_STORE_CTX when it is
1948 initialised. This allows various defaults to be set in the
1949 X509_STORE structure (such as flags for CRL checking and custom
1950 purpose or trust settings) for functions which only use X509_STORE_CTX
1951 internally such as S/MIME.
1953 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
1954 trust settings if they are not set in X509_STORE. This allows X509_STORE
1955 purposes and trust (in S/MIME for example) to override any set by default.
1957 Add command line options for CRL checking to smime, s_client and s_server
1961 *) Initial CRL based revocation checking. If the CRL checking flag(s)
1962 are set then the CRL is looked up in the X509_STORE structure and
1963 its validity and signature checked, then if the certificate is found
1964 in the CRL the verify fails with a revoked error.
1966 Various new CRL related callbacks added to X509_STORE_CTX structure.
1968 Command line options added to 'verify' application to support this.
1970 This needs some additional work, such as being able to handle multiple
1971 CRLs with different times, extension based lookup (rather than just
1972 by subject name) and ultimately more complete V2 CRL extension
1976 *) Add a general user interface API (crypto/ui/). This is designed
1977 to replace things like des_read_password and friends (backward
1978 compatibility functions using this new API are provided).
1979 The purpose is to remove prompting functions from the DES code
1980 section as well as provide for prompting through dialog boxes in
1981 a window system and the like.
1984 *) Add "ex_data" support to ENGINE so implementations can add state at a
1985 per-structure level rather than having to store it globally.
1988 *) Make it possible for ENGINE structures to be copied when retrieved by
1989 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
1990 This causes the "original" ENGINE structure to act like a template,
1991 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
1992 operational state can be localised to each ENGINE structure, despite the
1993 fact they all share the same "methods". New ENGINE structures returned in
1994 this case have no functional references and the return value is the single
1995 structural reference. This matches the single structural reference returned
1996 by ENGINE_by_id() normally, when it is incremented on the pre-existing
2000 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
2001 needs to match any other type at all we need to manually clear the
2005 *) Changes to the "openssl engine" utility to include;
2006 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
2007 about an ENGINE's available control commands.
2008 - executing control commands from command line arguments using the
2009 '-pre' and '-post' switches. '-post' is only used if '-t' is
2010 specified and the ENGINE is successfully initialised. The syntax for
2011 the individual commands are colon-separated, for example;
2012 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
2015 *) New dynamic control command support for ENGINEs. ENGINEs can now
2016 declare their own commands (numbers), names (strings), descriptions,
2017 and input types for run-time discovery by calling applications. A
2018 subset of these commands are implicitly classed as "executable"
2019 depending on their input type, and only these can be invoked through
2020 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
2021 can be based on user input, config files, etc). The distinction is
2022 that "executable" commands cannot return anything other than a boolean
2023 result and can only support numeric or string input, whereas some
2024 discoverable commands may only be for direct use through
2025 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
2026 pointers, or other custom uses. The "executable" commands are to
2027 support parameterisations of ENGINE behaviour that can be
2028 unambiguously defined by ENGINEs and used consistently across any
2029 OpenSSL-based application. Commands have been added to all the
2030 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
2031 control over shared-library paths without source code alterations.
2034 *) Changed all ENGINE implementations to dynamically allocate their
2035 ENGINEs rather than declaring them statically. Apart from this being
2036 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
2037 this also allows the implementations to compile without using the
2038 internal engine_int.h header.
2041 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
2042 'const' value. Any code that should be able to modify a RAND_METHOD
2043 should already have non-const pointers to it (ie. they should only
2044 modify their own ones).
2047 *) Made a variety of little tweaks to the ENGINE code.
2048 - "atalla" and "ubsec" string definitions were moved from header files
2049 to C code. "nuron" string definitions were placed in variables
2050 rather than hard-coded - allowing parameterisation of these values
2051 later on via ctrl() commands.
2052 - Removed unused "#if 0"'d code.
2053 - Fixed engine list iteration code so it uses ENGINE_free() to release
2054 structural references.
2055 - Constified the RAND_METHOD element of ENGINE structures.
2056 - Constified various get/set functions as appropriate and added
2057 missing functions (including a catch-all ENGINE_cpy that duplicates
2058 all ENGINE values onto a new ENGINE except reference counts/state).
2059 - Removed NULL parameter checks in get/set functions. Setting a method
2060 or function to NULL is a way of cancelling out a previously set
2061 value. Passing a NULL ENGINE parameter is just plain stupid anyway
2062 and doesn't justify the extra error symbols and code.
2063 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
2064 flags from engine_int.h to engine.h.
2065 - Changed prototypes for ENGINE handler functions (init(), finish(),
2066 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
2069 *) Implement binary inversion algorithm for BN_mod_inverse in addition
2070 to the algorithm using long division. The binary algorithm can be
2071 used only if the modulus is odd. On 32-bit systems, it is faster
2072 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
2073 roughly 5-15% for 256-bit moduli), so we use it only for moduli
2074 up to 450 bits. In 64-bit environments, the binary algorithm
2075 appears to be advantageous for much longer moduli; here we use it
2076 for moduli up to 2048 bits.
2079 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
2080 could not support the combine flag in choice fields.
2083 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
2084 extensions from a certificate request to the certificate.
2087 *) Allow multiple 'certopt' and 'nameopt' options to be separated
2088 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
2089 file: this allows the display of the certificate about to be
2090 signed to be customised, to allow certain fields to be included
2091 or excluded and extension details. The old system didn't display
2092 multicharacter strings properly, omitted fields not in the policy
2093 and couldn't display additional details such as extensions.
2096 *) Function EC_POINTs_mul for multiple scalar multiplication
2097 of an arbitrary number of elliptic curve points
2098 \sum scalars[i]*points[i],
2099 optionally including the generator defined for the EC_GROUP:
2100 scalar*generator + \sum scalars[i]*points[i].
2102 EC_POINT_mul is a simple wrapper function for the typical case
2103 that the point list has just one item (besides the optional
2107 *) First EC_METHODs for curves over GF(p):
2109 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
2110 operations and provides various method functions that can also
2111 operate with faster implementations of modular arithmetic.
2113 EC_GFp_mont_method() reuses most functions that are part of
2114 EC_GFp_simple_method, but uses Montgomery arithmetic.
2116 [Bodo Moeller; point addition and point doubling
2117 implementation directly derived from source code provided by
2118 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
2120 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
2121 crypto/ec/ec_lib.c):
2123 Curves are EC_GROUP objects (with an optional group generator)
2124 based on EC_METHODs that are built into the library.
2126 Points are EC_POINT objects based on EC_GROUP objects.
2128 Most of the framework would be able to handle curves over arbitrary
2129 finite fields, but as there are no obvious types for fields other
2130 than GF(p), some functions are limited to that for now.
2133 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
2134 that the file contains a complete HTTP response.
2137 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
2138 change the def and num file printf format specifier from "%-40sXXX"
2139 to "%-39s XXX". The latter will always guarantee a space after the
2140 field while the former will cause them to run together if the field
2141 is 40 of more characters long.
2144 *) Constify the cipher and digest 'method' functions and structures
2145 and modify related functions to take constant EVP_MD and EVP_CIPHER
2149 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
2150 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
2153 *) Modify EVP_Digest*() routines so they now return values. Although the
2154 internal software routines can never fail additional hardware versions
2158 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
2160 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
2161 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
2164 ERR_R_NESTED_ASN1_ERROR
2166 ERR_R_MISSING_ASN1_EOS
2167 were 4 .. 9, conflicting with
2168 ERR_LIB_RSA (= ERR_R_RSA_LIB)
2170 ERR_LIB_PEM (= ERR_R_PEM_LIB).
2171 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
2173 Add new error code 'ERR_R_INTERNAL_ERROR'.
2176 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
2180 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
2181 sets the subject name for a new request or supersedes the
2182 subject name in a given request. Formats that can be parsed are
2183 'CN=Some Name, OU=myOU, C=IT'
2185 'CN=Some Name/OU=myOU/C=IT'.
2187 Add options '-batch' and '-verbose' to 'openssl req'.
2188 [Massimiliano Pala <madwolf@hackmasters.net>]
2190 *) Introduce the possibility to access global variables through
2191 functions on platform were that's the best way to handle exporting
2192 global variables in shared libraries. To enable this functionality,
2193 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
2194 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
2195 is normally done by Configure or something similar).
2197 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
2198 in the source file (foo.c) like this:
2200 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
2201 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
2203 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
2204 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
2206 OPENSSL_DECLARE_GLOBAL(int,foo);
2207 #define foo OPENSSL_GLOBAL_REF(foo)
2208 OPENSSL_DECLARE_GLOBAL(double,bar);
2209 #define bar OPENSSL_GLOBAL_REF(bar)
2211 The #defines are very important, and therefore so is including the
2212 header file everywhere where the defined globals are used.
2214 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
2215 of ASN.1 items, but that structure is a bit different.
2217 The largest change is in util/mkdef.pl which has been enhanced with
2218 better and easier to understand logic to choose which symbols should
2219 go into the Windows .def files as well as a number of fixes and code
2220 cleanup (among others, algorithm keywords are now sorted
2221 lexicographically to avoid constant rewrites).
2224 *) In BN_div() keep a copy of the sign of 'num' before writing the
2225 result to 'rm' because if rm==num the value will be overwritten
2226 and produce the wrong result if 'num' is negative: this caused
2227 problems with BN_mod() and BN_nnmod().
2230 *) Function OCSP_request_verify(). This checks the signature on an
2231 OCSP request and verifies the signer certificate. The signer
2232 certificate is just checked for a generic purpose and OCSP request
2236 *) Add OCSP_check_validity() function to check the validity of OCSP
2237 responses. OCSP responses are prepared in real time and may only
2238 be a few seconds old. Simply checking that the current time lies
2239 between thisUpdate and nextUpdate max reject otherwise valid responses
2240 caused by either OCSP responder or client clock inaccuracy. Instead
2241 we allow thisUpdate and nextUpdate to fall within a certain period of
2242 the current time. The age of the response can also optionally be
2243 checked. Two new options -validity_period and -status_age added to
2247 *) If signature or public key algorithm is unrecognized print out its
2248 OID rather that just UNKNOWN.
2251 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
2252 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
2253 ID to be generated from the issuer certificate alone which can then be
2254 passed to OCSP_id_issuer_cmp().
2257 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
2258 ASN1 modules to export functions returning ASN1_ITEM pointers
2259 instead of the ASN1_ITEM structures themselves. This adds several
2260 new macros which allow the underlying ASN1 function/structure to
2261 be accessed transparently. As a result code should not use ASN1_ITEM
2262 references directly (such as &X509_it) but instead use the relevant
2263 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
2264 use of the new ASN1 code on platforms where exporting structures
2265 is problematical (for example in shared libraries) but exporting
2266 functions returning pointers to structures is not.
2269 *) Add support for overriding the generation of SSL/TLS session IDs.
2270 These callbacks can be registered either in an SSL_CTX or per SSL.
2271 The purpose of this is to allow applications to control, if they wish,
2272 the arbitrary values chosen for use as session IDs, particularly as it
2273 can be useful for session caching in multiple-server environments. A
2274 command-line switch for testing this (and any client code that wishes
2275 to use such a feature) has been added to "s_server".
2276 [Geoff Thorpe, Lutz Jaenicke]
2278 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
2279 of the form '#if defined(...) || defined(...) || ...' and
2280 '#if !defined(...) && !defined(...) && ...'. This also avoids
2281 the growing number of special cases it was previously handling.
2284 *) Make all configuration macros available for application by making
2285 sure they are available in opensslconf.h, by giving them names starting
2286 with "OPENSSL_" to avoid conflicts with other packages and by making
2287 sure e_os2.h will cover all platform-specific cases together with
2289 Additionally, it is now possible to define configuration/platform-
2290 specific names (called "system identities"). In the C code, these
2291 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
2292 macro with the name beginning with "OPENSSL_SYS_", which is determined
2293 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
2297 *) New option -set_serial to 'req' and 'x509' this allows the serial
2298 number to use to be specified on the command line. Previously self
2299 signed certificates were hard coded with serial number 0 and the
2300 CA options of 'x509' had to use a serial number in a file which was
2304 *) New options to 'ca' utility to support V2 CRL entry extensions.
2305 Currently CRL reason, invalidity date and hold instruction are
2306 supported. Add new CRL extensions to V3 code and some new objects.
2309 *) New function EVP_CIPHER_CTX_set_padding() this is used to
2310 disable standard block padding (aka PKCS#5 padding) in the EVP
2311 API, which was previously mandatory. This means that the data is
2312 not padded in any way and so the total length much be a multiple
2313 of the block size, otherwise an error occurs.
2316 *) Initial (incomplete) OCSP SSL support.
2319 *) New function OCSP_parse_url(). This splits up a URL into its host,
2320 port and path components: primarily to parse OCSP URLs. New -url
2321 option to ocsp utility.
2324 *) New nonce behavior. The return value of OCSP_check_nonce() now
2325 reflects the various checks performed. Applications can decide
2326 whether to tolerate certain situations such as an absent nonce
2327 in a response when one was present in a request: the ocsp application
2328 just prints out a warning. New function OCSP_add1_basic_nonce()
2329 this is to allow responders to include a nonce in a response even if
2330 the request is nonce-less.
2333 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
2334 skipped when using openssl x509 multiple times on a single input file,
2335 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
2338 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
2339 set string type: to handle setting ASN1_TIME structures. Fix ca
2340 utility to correctly initialize revocation date of CRLs.
2343 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
2344 the clients preferred ciphersuites and rather use its own preferences.
2345 Should help to work around M$ SGC (Server Gated Cryptography) bug in
2346 Internet Explorer by ensuring unchanged hash method during stepup.
2347 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
2350 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
2351 to aes and add a new 'exist' option to print out symbols that don't
2355 *) Additional options to ocsp utility to allow flags to be set and
2356 additional certificates supplied.
2359 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
2360 OCSP client a number of certificate to only verify the response
2364 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
2365 handle the new API. Currently only ECB, CBC modes supported. Add new
2368 Add TLS AES ciphersuites as described in RFC3268, "Advanced
2369 Encryption Standard (AES) Ciphersuites for Transport Layer
2370 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
2371 not enabled by default and were not part of the "ALL" ciphersuite
2372 alias because they were not yet official; they could be
2373 explicitly requested by specifying the "AESdraft" ciphersuite
2374 group alias. In the final release of OpenSSL 0.9.7, the group
2375 alias is called "AES" and is part of "ALL".)
2376 [Ben Laurie, Steve Henson, Bodo Moeller]
2378 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
2379 request to response.
2382 *) Functions for OCSP responders. OCSP_request_onereq_count(),
2383 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
2384 extract information from a certificate request. OCSP_response_create()
2385 creates a response and optionally adds a basic response structure.
2386 OCSP_basic_add1_status() adds a complete single response to a basic
2387 response and returns the OCSP_SINGLERESP structure just added (to allow
2388 extensions to be included for example). OCSP_basic_add1_cert() adds a
2389 certificate to a basic response and OCSP_basic_sign() signs a basic
2390 response with various flags. New helper functions ASN1_TIME_check()
2391 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
2392 (converts ASN1_TIME to GeneralizedTime).
2395 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
2396 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
2397 structure from a certificate. X509_pubkey_digest() digests the public_key
2398 contents: this is used in various key identifiers.
2401 *) Make sk_sort() tolerate a NULL argument.
2402 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
2404 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
2405 passed by the function are trusted implicitly. If any of them signed the
2406 response then it is assumed to be valid and is not verified.
2409 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
2410 to data. This was previously part of the PKCS7 ASN1 code. This
2411 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
2412 [Steve Henson, reported by Kenneth R. Robinette
2413 <support@securenetterm.com>]
2415 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
2416 routines: without these tracing memory leaks is very painful.
2417 Fix leaks in PKCS12 and PKCS7 routines.
2420 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
2421 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
2422 effectively meant GeneralizedTime would never be used. Now it
2423 is initialised to -1 but X509_time_adj() now has to check the value
2424 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
2425 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
2426 [Steve Henson, reported by Kenneth R. Robinette
2427 <support@securenetterm.com>]
2429 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
2430 result in a zero length in the ASN1_INTEGER structure which was
2431 not consistent with the structure when d2i_ASN1_INTEGER() was used
2432 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
2433 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
2434 where it did not print out a minus for negative ASN1_INTEGER.
2437 *) Add summary printout to ocsp utility. The various functions which
2438 convert status values to strings have been renamed to:
2439 OCSP_response_status_str(), OCSP_cert_status_str() and
2440 OCSP_crl_reason_str() and are no longer static. New options
2441 to verify nonce values and to disable verification. OCSP response
2442 printout format cleaned up.
2445 *) Add additional OCSP certificate checks. These are those specified
2446 in RFC2560. This consists of two separate checks: the CA of the
2447 certificate being checked must either be the OCSP signer certificate
2448 or the issuer of the OCSP signer certificate. In the latter case the
2449 OCSP signer certificate must contain the OCSP signing extended key
2450 usage. This check is performed by attempting to match the OCSP
2451 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
2452 in the OCSP_CERTID structures of the response.
2455 *) Initial OCSP certificate verification added to OCSP_basic_verify()
2456 and related routines. This uses the standard OpenSSL certificate
2457 verify routines to perform initial checks (just CA validity) and
2458 to obtain the certificate chain. Then additional checks will be
2459 performed on the chain. Currently the root CA is checked to see
2460 if it is explicitly trusted for OCSP signing. This is used to set
2461 a root CA as a global signing root: that is any certificate that
2462 chains to that CA is an acceptable OCSP signing certificate.
2465 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
2466 extensions from a separate configuration file.
2467 As when reading extensions from the main configuration file,
2468 the '-extensions ...' option may be used for specifying the
2470 [Massimiliano Pala <madwolf@comune.modena.it>]
2472 *) New OCSP utility. Allows OCSP requests to be generated or
2473 read. The request can be sent to a responder and the output
2474 parsed, outputed or printed in text form. Not complete yet:
2475 still needs to check the OCSP response validity.
2478 *) New subcommands for 'openssl ca':
2479 'openssl ca -status <serial>' prints the status of the cert with
2480 the given serial number (according to the index file).
2481 'openssl ca -updatedb' updates the expiry status of certificates
2483 [Massimiliano Pala <madwolf@comune.modena.it>]
2485 *) New '-newreq-nodes' command option to CA.pl. This is like
2486 '-newreq', but calls 'openssl req' with the '-nodes' option
2487 so that the resulting key is not encrypted.
2488 [Damien Miller <djm@mindrot.org>]
2490 *) New configuration for the GNU Hurd.
2491 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
2493 *) Initial code to implement OCSP basic response verify. This
2494 is currently incomplete. Currently just finds the signer's
2495 certificate and verifies the signature on the response.
2498 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
2499 value of OPENSSLDIR. This is available via the new '-d' option
2500 to 'openssl version', and is also included in 'openssl version -a'.
2503 *) Allowing defining memory allocation callbacks that will be given
2504 file name and line number information in additional arguments
2505 (a const char* and an int). The basic functionality remains, as
2506 well as the original possibility to just replace malloc(),
2507 realloc() and free() by functions that do not know about these
2508 additional arguments. To register and find out the current
2509 settings for extended allocation functions, the following
2510 functions are provided:
2512 CRYPTO_set_mem_ex_functions
2513 CRYPTO_set_locked_mem_ex_functions
2514 CRYPTO_get_mem_ex_functions
2515 CRYPTO_get_locked_mem_ex_functions
2517 These work the same way as CRYPTO_set_mem_functions and friends.
2518 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
2519 extended allocation function is enabled.
2520 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
2521 a conventional allocation function is enabled.
2522 [Richard Levitte, Bodo Moeller]
2524 *) Finish off removing the remaining LHASH function pointer casts.
2525 There should no longer be any prototype-casting required when using
2526 the LHASH abstraction, and any casts that remain are "bugs". See
2527 the callback types and macros at the head of lhash.h for details
2528 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
2531 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
2532 If /dev/[u]random devices are not available or do not return enough
2533 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
2535 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
2536 /etc/entropy will be queried once each in this sequence, quering stops
2537 when enough entropy was collected without querying more sockets.
2540 *) Change the Unix RAND_poll() variant to be able to poll several
2541 random devices, as specified by DEVRANDOM, until a sufficient amount
2542 of data has been collected. We spend at most 10 ms on each file
2543 (select timeout) and read in non-blocking mode. DEVRANDOM now
2544 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
2545 (previously it was just the string "/dev/urandom"), so on typical
2546 platforms the 10 ms delay will never occur.
2547 Also separate out the Unix variant to its own file, rand_unix.c.
2548 For VMS, there's a currently-empty rand_vms.c.
2551 *) Move OCSP client related routines to ocsp_cl.c. These
2552 provide utility functions which an application needing
2553 to issue a request to an OCSP responder and analyse the
2554 response will typically need: as opposed to those which an
2555 OCSP responder itself would need which will be added later.
2557 OCSP_request_sign() signs an OCSP request with an API similar
2558 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
2559 response. OCSP_response_get1_basic() extracts basic response
2560 from response. OCSP_resp_find_status(): finds and extracts status
2561 information from an OCSP_CERTID structure (which will be created
2562 when the request structure is built). These are built from lower
2563 level functions which work on OCSP_SINGLERESP structures but
2564 wont normally be used unless the application wishes to examine
2565 extensions in the OCSP response for example.
2567 Replace nonce routines with a pair of functions.
2568 OCSP_request_add1_nonce() adds a nonce value and optionally
2569 generates a random value. OCSP_check_nonce() checks the
2570 validity of the nonce in an OCSP response.
2573 *) Change function OCSP_request_add() to OCSP_request_add0_id().
2574 This doesn't copy the supplied OCSP_CERTID and avoids the
2575 need to free up the newly created id. Change return type
2576 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
2577 This can then be used to add extensions to the request.
2578 Deleted OCSP_request_new(), since most of its functionality
2579 is now in OCSP_REQUEST_new() (and the case insensitive name
2580 clash) apart from the ability to set the request name which
2581 will be added elsewhere.
2584 *) Update OCSP API. Remove obsolete extensions argument from
2585 various functions. Extensions are now handled using the new
2586 OCSP extension code. New simple OCSP HTTP function which
2587 can be used to send requests and parse the response.
2590 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
2591 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
2592 uses the special reorder version of SET OF to sort the attributes
2593 and reorder them to match the encoded order. This resolves a long
2594 standing problem: a verify on a PKCS7 structure just after signing
2595 it used to fail because the attribute order did not match the
2596 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
2597 it uses the received order. This is necessary to tolerate some broken
2598 software that does not order SET OF. This is handled by encoding
2599 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
2600 to produce the required SET OF.
2603 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
2604 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
2605 files to get correct declarations of the ASN.1 item variables.
2608 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
2609 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
2610 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
2611 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
2612 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
2613 ASN1_ITEM and no wrapper functions.
2616 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
2617 replace the old function pointer based I/O routines. Change most of
2618 the *_d2i_bio() and *_d2i_fp() functions to use these.
2621 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
2622 lines, recognice more "algorithms" that can be deselected, and make
2623 it complain about algorithm deselection that isn't recognised.
2626 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
2627 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
2628 to use new functions. Add NO_ASN1_OLD which can be set to remove
2629 some old style ASN1 functions: this can be used to determine if old
2630 code will still work when these eventually go away.
2633 *) New extension functions for OCSP structures, these follow the
2634 same conventions as certificates and CRLs.
2637 *) New function X509V3_add1_i2d(). This automatically encodes and
2638 adds an extension. Its behaviour can be customised with various
2639 flags to append, replace or delete. Various wrappers added for
2640 certifcates and CRLs.
2643 *) Fix to avoid calling the underlying ASN1 print routine when
2644 an extension cannot be parsed. Correct a typo in the
2645 OCSP_SERVICELOC extension. Tidy up print OCSP format.
2648 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
2649 entries for variables.
2652 *) Add functionality to apps/openssl.c for detecting locking
2653 problems: As the program is single-threaded, all we have
2654 to do is register a locking callback using an array for
2655 storing which locks are currently held by the program.
2658 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
2659 SSL_get_ex_data_X509_STORE_idx(), which is used in
2660 ssl_verify_cert_chain() and thus can be called at any time
2661 during TLS/SSL handshakes so that thread-safety is essential.
2662 Unfortunately, the ex_data design is not at all suited
2663 for multi-threaded use, so it probably should be abolished.
2666 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
2667 [Broadcom, tweaked and integrated by Geoff Thorpe]
2669 *) Move common extension printing code to new function
2670 X509V3_print_extensions(). Reorganise OCSP print routines and
2671 implement some needed OCSP ASN1 functions. Add OCSP extensions.
2674 *) New function X509_signature_print() to remove duplication in some
2678 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
2679 set (this was treated exactly the same as SET OF previously). This
2680 is used to reorder the STACK representing the structure to match the
2681 encoding. This will be used to get round a problem where a PKCS7
2682 structure which was signed could not be verified because the STACK
2683 order did not reflect the encoded order.
2686 *) Reimplement the OCSP ASN1 module using the new code.
2689 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
2690 for its ASN1 operations. The old style function pointers still exist
2691 for now but they will eventually go away.
2694 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
2695 completely replaces the old ASN1 functionality with a table driven
2696 encoder and decoder which interprets an ASN1_ITEM structure describing
2697 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
2698 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
2699 has also been converted to the new form.
2702 *) Change BN_mod_exp_recp so that negative moduli are tolerated
2703 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
2704 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
2705 for negative moduli.
2708 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
2709 of not touching the result's sign bit.
2712 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
2716 *) Changed the LHASH code to use prototypes for callbacks, and created
2717 macros to declare and implement thin (optionally static) functions
2718 that provide type-safety and avoid function pointer casting for the
2719 type-specific callbacks.
2722 *) Added Kerberos Cipher Suites to be used with TLS, as written in
2724 [Veers Staats <staatsvr@asc.hpc.mil>,
2725 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
2727 *) Reformat the FAQ so the different questions and answers can be divided
2728 in sections depending on the subject.
2731 *) Have the zlib compression code load ZLIB.DLL dynamically under
2735 *) New function BN_mod_sqrt for computing square roots modulo a prime
2736 (using the probabilistic Tonelli-Shanks algorithm unless
2737 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
2738 be handled deterministically).
2739 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
2741 *) Make BN_mod_inverse faster by explicitly handling small quotients
2742 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
2743 512 bits], about 30% for larger ones [1024 or 2048 bits].)
2746 *) New function BN_kronecker.
2749 *) Fix BN_gcd so that it works on negative inputs; the result is
2750 positive unless both parameters are zero.
2751 Previously something reasonably close to an infinite loop was
2752 possible because numbers could be growing instead of shrinking
2753 in the implementation of Euclid's algorithm.
2756 *) Fix BN_is_word() and BN_is_one() macros to take into account the
2757 sign of the number in question.
2759 Fix BN_is_word(a,w) to work correctly for w == 0.
2761 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
2762 because its test if the absolute value of 'a' equals 'w'.
2763 Note that BN_abs_is_word does *not* handle w == 0 reliably;
2764 it exists mostly for use in the implementations of BN_is_zero(),
2765 BN_is_one(), and BN_is_word().
2768 *) New function BN_swap.
2771 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
2772 the exponentiation functions are more likely to produce reasonable
2773 results on negative inputs.
2776 *) Change BN_mod_mul so that the result is always non-negative.
2777 Previously, it could be negative if one of the factors was negative;
2778 I don't think anyone really wanted that behaviour.
2781 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
2782 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
2783 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
2784 and add new functions:
2793 BN_mod_lshift1_quick
2797 These functions always generate non-negative results.
2799 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
2800 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
2802 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
2803 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
2804 be reduced modulo m.
2805 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
2808 The following entry accidentily appeared in the CHANGES file
2809 distributed with OpenSSL 0.9.7. The modifications described in
2810 it do *not* apply to OpenSSL 0.9.7.
2812 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
2813 was actually never needed) and in BN_mul(). The removal in BN_mul()
2814 required a small change in bn_mul_part_recursive() and the addition
2815 of the functions bn_cmp_part_words(), bn_sub_part_words() and
2816 bn_add_part_words(), which do the same thing as bn_cmp_words(),
2817 bn_sub_words() and bn_add_words() except they take arrays with
2822 *) In 'openssl passwd', verify passwords read from the terminal
2823 unless the '-salt' option is used (which usually means that
2824 verification would just waste user's time since the resulting
2825 hash is going to be compared with some given password hash)
2826 or the new '-noverify' option is used.
2828 This is an incompatible change, but it does not affect
2829 non-interactive use of 'openssl passwd' (passwords on the command
2830 line, '-stdin' option, '-in ...' option) and thus should not
2834 *) Remove all references to RSAref, since there's no more need for it.
2837 *) Make DSO load along a path given through an environment variable
2838 (SHLIB_PATH) with shl_load().
2841 *) Constify the ENGINE code as a result of BIGNUM constification.
2842 Also constify the RSA code and most things related to it. In a
2843 few places, most notable in the depth of the ASN.1 code, ugly
2844 casts back to non-const were required (to be solved at a later
2848 *) Make it so the openssl application has all engines loaded by default.
2851 *) Constify the BIGNUM routines a little more.
2854 *) Add the following functions:
2856 ENGINE_load_cswift()
2858 ENGINE_load_atalla()
2860 ENGINE_load_builtin_engines()
2862 That way, an application can itself choose if external engines that
2863 are built-in in OpenSSL shall ever be used or not. The benefit is
2864 that applications won't have to be linked with libdl or other dso
2865 libraries unless it's really needed.
2867 Changed 'openssl engine' to load all engines on demand.
2868 Changed the engine header files to avoid the duplication of some
2869 declarations (they differed!).
2872 *) 'openssl engine' can now list capabilities.
2875 *) Better error reporting in 'openssl engine'.
2878 *) Never call load_dh_param(NULL) in s_server.
2881 *) Add engine application. It can currently list engines by name and
2882 identity, and test if they are actually available.
2885 *) Improve RPM specification file by forcing symbolic linking and making
2886 sure the installed documentation is also owned by root.root.
2887 [Damien Miller <djm@mindrot.org>]
2889 *) Give the OpenSSL applications more possibilities to make use of
2890 keys (public as well as private) handled by engines.
2893 *) Add OCSP code that comes from CertCo.
2896 *) Add VMS support for the Rijndael code.
2899 *) Added untested support for Nuron crypto accelerator.
2902 *) Add support for external cryptographic devices. This code was
2903 previously distributed separately as the "engine" branch.
2904 [Geoff Thorpe, Richard Levitte]
2906 *) Rework the filename-translation in the DSO code. It is now possible to
2907 have far greater control over how a "name" is turned into a filename
2908 depending on the operating environment and any oddities about the
2909 different shared library filenames on each system.
2912 *) Support threads on FreeBSD-elf in Configure.
2915 *) Fix for SHA1 assembly problem with MASM: it produces
2916 warnings about corrupt line number information when assembling
2917 with debugging information. This is caused by the overlapping
2919 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
2922 NCONF_get_number() has no error checking at all. As a replacement,
2923 NCONF_get_number_e() is defined (_e for "error checking") and is
2924 promoted strongly. The old NCONF_get_number is kept around for
2925 binary backward compatibility.
2926 Make it possible for methods to load from something other than a BIO,
2927 by providing a function pointer that is given a name instead of a BIO.
2928 For example, this could be used to load configuration data from an
2932 *) Fix for non blocking accept BIOs. Added new I/O special reason
2933 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
2934 with non blocking I/O was not possible because no retry code was
2935 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
2939 *) Added the beginnings of Rijndael support.
2942 *) Fix for bug in DirectoryString mask setting. Add support for
2943 X509_NAME_print_ex() in 'req' and X509_print_ex() function
2944 to allow certificate printing to more controllable, additional
2945 'certopt' option to 'x509' to allow new printing options to be
2949 *) Clean old EAY MD5 hack from e_os.h.
2952 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
2954 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
2955 by using the Codenomicon TLS Test Tool (CAN-2004-0079)
2956 [Joe Orton, Steve Henson]
2958 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
2960 *) Fix additional bug revealed by the NISCC test suite:
2962 Stop bug triggering large recursion when presented with
2963 certain ASN.1 tags (CAN-2003-0851)
2966 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
2968 *) Fix various bugs revealed by running the NISCC test suite:
2970 Stop out of bounds reads in the ASN1 code when presented with
2971 invalid tags (CAN-2003-0543 and CAN-2003-0544).
2973 If verify callback ignores invalid public key errors don't try to check
2974 certificate signature with the NULL public key.
2978 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
2979 if the server requested one: as stated in TLS 1.0 and SSL 3.0
2983 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
2984 extra data after the compression methods not only for TLS 1.0
2985 but also for SSL 3.0 (as required by the specification).
2986 [Bodo Moeller; problem pointed out by Matthias Loepfe]
2988 *) Change X509_certificate_type() to mark the key as exported/exportable
2989 when it's 512 *bits* long, not 512 bytes.
2992 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
2994 *) Countermeasure against the Klima-Pokorny-Rosa extension of
2995 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
2996 a protocol version number mismatch like a decryption error
2997 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3000 *) Turn on RSA blinding by default in the default implementation
3001 to avoid a timing attack. Applications that don't want it can call
3002 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3003 They would be ill-advised to do so in most cases.
3004 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3006 *) Change RSA blinding code so that it works when the PRNG is not
3007 seeded (in this case, the secret RSA exponent is abused as
3008 an unpredictable seed -- if it is not unpredictable, there
3009 is no point in blinding anyway). Make RSA blinding thread-safe
3010 by remembering the creator's thread ID in rsa->blinding and
3011 having all other threads use local one-time blinding factors
3012 (this requires more computation than sharing rsa->blinding, but
3013 avoids excessive locking; and if an RSA object is not shared
3014 between threads, blinding will still be very fast).
3017 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
3019 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3020 via timing by performing a MAC computation even if incorrrect
3021 block cipher padding has been found. This is a countermeasure
3022 against active attacks where the attacker has to distinguish
3023 between bad padding and a MAC verification error. (CAN-2003-0078)
3025 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3026 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3027 Martin Vuagnoux (EPFL, Ilion)]
3029 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
3031 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
3032 memory from it's contents. This is done with a counter that will
3033 place alternating values in each byte. This can be used to solve
3034 two issues: 1) the removal of calls to memset() by highly optimizing
3035 compilers, and 2) cleansing with other values than 0, since those can
3036 be read through on certain media, for example a swap space on disk.
3039 *) Bugfix: client side session caching did not work with external caching,
3040 because the session->cipher setting was not restored when reloading
3041 from the external cache. This problem was masked, when
3042 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
3043 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
3046 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
3047 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
3048 [Zeev Lieber <zeev-l@yahoo.com>]
3050 *) Undo an undocumented change introduced in 0.9.6e which caused
3051 repeated calls to OpenSSL_add_all_ciphers() and
3052 OpenSSL_add_all_digests() to be ignored, even after calling
3056 *) Change the default configuration reader to deal with last line not
3057 being properly terminated.
3060 *) Change X509_NAME_cmp() so it applies the special rules on handling
3061 DN values that are of type PrintableString, as well as RDNs of type
3062 emailAddress where the value has the type ia5String.
3063 [stefank@valicert.com via Richard Levitte]
3065 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
3066 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
3067 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
3068 the bitwise-OR of the two for use by the majority of applications
3069 wanting this behaviour, and update the docs. The documented
3070 behaviour and actual behaviour were inconsistent and had been
3071 changing anyway, so this is more a bug-fix than a behavioural
3073 [Geoff Thorpe, diagnosed by Nadav Har'El]
3075 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
3076 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
3079 *) Fix initialization code race conditions in
3080 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
3081 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
3082 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
3083 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
3084 ssl2_get_cipher_by_char(),
3085 ssl3_get_cipher_by_char().
3086 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
3088 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
3089 the cached sessions are flushed, as the remove_cb() might use ex_data
3090 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
3091 (see [openssl.org #212]).
3092 [Geoff Thorpe, Lutz Jaenicke]
3094 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
3095 length, instead of the encoding length to d2i_ASN1_OBJECT.
3098 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
3100 *) [In 0.9.6g-engine release:]
3101 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
3102 [Lynn Gazis <lgazis@rainbow.com>]
3104 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
3106 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
3107 and get fix the header length calculation.
3108 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
3109 Alon Kantor <alonk@checkpoint.com> (and others),
3112 *) Use proper error handling instead of 'assertions' in buffer
3113 overflow checks added in 0.9.6e. This prevents DoS (the
3114 assertions could call abort()).
3115 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
3117 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
3119 *) Add various sanity checks to asn1_get_length() to reject
3120 the ASN1 length bytes if they exceed sizeof(long), will appear
3121 negative or the content length exceeds the length of the
3123 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3125 *) Fix cipher selection routines: ciphers without encryption had no flags
3126 for the cipher strength set and where therefore not handled correctly
3127 by the selection routines (PR #130).
3130 *) Fix EVP_dsa_sha macro.
3134 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
3135 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
3136 that was added in OpenSSL 0.9.6d.
3138 As the countermeasure turned out to be incompatible with some
3139 broken SSL implementations, the new option is part of SSL_OP_ALL.
3140 SSL_OP_ALL is usually employed when compatibility with weird SSL
3141 implementations is desired (e.g. '-bugs' option to 's_client' and
3142 's_server'), so the new option is automatically set in many
3146 *) Changes in security patch:
3148 Changes marked "(CHATS)" were sponsored by the Defense Advanced
3149 Research Projects Agency (DARPA) and Air Force Research Laboratory,
3150 Air Force Materiel Command, USAF, under agreement number
3153 *) Add various sanity checks to asn1_get_length() to reject
3154 the ASN1 length bytes if they exceed sizeof(long), will appear
3155 negative or the content length exceeds the length of the
3156 supplied buffer. (CAN-2002-0659)
3157 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3159 *) Assertions for various potential buffer overflows, not known to
3161 [Ben Laurie (CHATS)]
3163 *) Various temporary buffers to hold ASCII versions of integers were
3164 too small for 64 bit platforms. (CAN-2002-0655)
3165 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
3167 *) Remote buffer overflow in SSL3 protocol - an attacker could
3168 supply an oversized session ID to a client. (CAN-2002-0656)
3169 [Ben Laurie (CHATS)]
3171 *) Remote buffer overflow in SSL2 protocol - an attacker could
3172 supply an oversized client master key. (CAN-2002-0656)
3173 [Ben Laurie (CHATS)]
3175 Changes between 0.9.6c and 0.9.6d [9 May 2002]
3177 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
3178 encoded as NULL) with id-dsa-with-sha1.
3179 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
3181 *) Check various X509_...() return values in apps/req.c.
3182 [Nils Larsch <nla@trustcenter.de>]
3184 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
3185 an end-of-file condition would erronously be flagged, when the CRLF
3186 was just at the end of a processed block. The bug was discovered when
3187 processing data through a buffering memory BIO handing the data to a
3188 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
3189 <ptsekov@syntrex.com> and Nedelcho Stanev.
3192 *) Implement a countermeasure against a vulnerability recently found
3193 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
3194 before application data chunks to avoid the use of known IVs
3195 with data potentially chosen by the attacker.
3198 *) Fix length checks in ssl3_get_client_hello().
3201 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
3202 to prevent ssl3_read_internal() from incorrectly assuming that
3203 ssl3_read_bytes() found application data while handshake
3204 processing was enabled when in fact s->s3->in_read_app_data was
3205 merely automatically cleared during the initial handshake.
3206 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
3208 *) Fix object definitions for Private and Enterprise: they were not
3209 recognized in their shortname (=lowercase) representation. Extend
3210 obj_dat.pl to issue an error when using undefined keywords instead
3211 of silently ignoring the problem (Svenning Sorensen
3212 <sss@sss.dnsalias.net>).
3215 *) Fix DH_generate_parameters() so that it works for 'non-standard'
3216 generators, i.e. generators other than 2 and 5. (Previously, the
3217 code did not properly initialise the 'add' and 'rem' values to
3218 BN_generate_prime().)
3220 In the new general case, we do not insist that 'generator' is
3221 actually a primitive root: This requirement is rather pointless;
3222 a generator of the order-q subgroup is just as good, if not
3226 *) Map new X509 verification errors to alerts. Discovered and submitted by
3227 Tom Wu <tom@arcot.com>.
3230 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
3231 returning non-zero before the data has been completely received
3232 when using non-blocking I/O.
3233 [Bodo Moeller; problem pointed out by John Hughes]
3235 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
3236 [Ben Laurie, Lutz Jaenicke]
3238 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
3239 Yoram Zahavi <YoramZ@gilian.com>).
3242 *) Add information about CygWin 1.3 and on, and preserve proper
3243 configuration for the versions before that.
3244 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
3246 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
3247 check whether we deal with a copy of a session and do not delete from
3248 the cache in this case. Problem reported by "Izhar Shoshani Levi"
3249 <izhar@checkpoint.com>.
3252 *) Do not store session data into the internal session cache, if it
3253 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
3254 flag is set). Proposed by Aslam <aslam@funk.com>.
3257 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
3261 *) [In 0.9.6d-engine release:]
3262 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3263 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3265 *) Add the configuration target linux-s390x.
3266 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
3268 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
3269 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
3270 variable as an indication that a ClientHello message has been
3271 received. As the flag value will be lost between multiple
3272 invocations of ssl3_accept when using non-blocking I/O, the
3273 function may not be aware that a handshake has actually taken
3274 place, thus preventing a new session from being added to the
3277 To avoid this problem, we now set s->new_session to 2 instead of
3278 using a local variable.
3279 [Lutz Jaenicke, Bodo Moeller]
3281 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
3282 if the SSL_R_LENGTH_MISMATCH error is detected.
3283 [Geoff Thorpe, Bodo Moeller]
3285 *) New 'shared_ldflag' column in Configure platform table.
3288 *) Fix EVP_CIPHER_mode macro.
3289 ["Dan S. Camper" <dan@bti.net>]
3291 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
3292 type, we must throw them away by setting rr->length to 0.
3293 [D P Chang <dpc@qualys.com>]
3295 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
3297 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
3298 <Dominikus.Scherkl@biodata.com>. (The previous implementation
3299 worked incorrectly for those cases where range = 10..._2 and
3300 3*range is two bits longer than range.)
3303 *) Only add signing time to PKCS7 structures if it is not already
3307 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
3308 OBJ_ld_ce should be OBJ_id_ce.
3309 Also some ip-pda OIDs in crypto/objects/objects.txt were
3310 incorrect (cf. RFC 3039).
3311 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
3313 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
3314 returns early because it has nothing to do.
3315 [Andy Schneider <andy.schneider@bjss.co.uk>]
3317 *) [In 0.9.6c-engine release:]
3318 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
3319 [Andy Schneider <andy.schneider@bjss.co.uk>]
3321 *) [In 0.9.6c-engine release:]
3322 Add support for Cryptographic Appliance's keyserver technology.
3323 (Use engine 'keyclient')
3324 [Cryptographic Appliances and Geoff Thorpe]
3326 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
3327 is called via tools/c89.sh because arguments have to be
3328 rearranged (all '-L' options must appear before the first object
3330 [Richard Shapiro <rshapiro@abinitio.com>]
3332 *) [In 0.9.6c-engine release:]
3333 Add support for Broadcom crypto accelerator cards, backported
3335 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
3337 *) [In 0.9.6c-engine release:]
3338 Add support for SureWare crypto accelerator cards from
3339 Baltimore Technologies. (Use engine 'sureware')
3340 [Baltimore Technologies and Mark Cox]
3342 *) [In 0.9.6c-engine release:]
3343 Add support for crypto accelerator cards from Accelerated
3344 Encryption Processing, www.aep.ie. (Use engine 'aep')
3345 [AEP Inc. and Mark Cox]
3347 *) Add a configuration entry for gcc on UnixWare.
3348 [Gary Benson <gbenson@redhat.com>]
3350 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
3351 messages are stored in a single piece (fixed-length part and
3352 variable-length part combined) and fix various bugs found on the way.
3355 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
3356 instead. BIO_gethostbyname() does not know what timeouts are
3357 appropriate, so entries would stay in cache even when they have
3359 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
3361 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
3362 faced with a pathologically small ClientHello fragment that does
3363 not contain client_version: Instead of aborting with an error,
3364 simply choose the highest available protocol version (i.e.,
3365 TLS 1.0 unless it is disabled). In practice, ClientHello
3366 messages are never sent like this, but this change gives us
3367 strictly correct behaviour at least for TLS.
3370 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
3371 never resets s->method to s->ctx->method when called from within
3372 one of the SSL handshake functions.
3373 [Bodo Moeller; problem pointed out by Niko Baric]
3375 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
3376 (sent using the client's version number) if client_version is
3377 smaller than the protocol version in use. Also change
3378 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
3379 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
3380 the client will at least see that alert.
3383 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
3387 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
3388 client receives HelloRequest while in a handshake.
3389 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
3391 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
3392 should end in 'break', not 'goto end' which circuments various
3393 cleanups done in state SSL_ST_OK. But session related stuff
3394 must be disabled for SSL_ST_OK in the case that we just sent a
3397 Also avoid some overhead by not calling ssl_init_wbio_buffer()
3398 before just sending a HelloRequest.
3399 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
3401 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
3402 reveal whether illegal block cipher padding was found or a MAC
3403 verification error occured. (Neither SSLerr() codes nor alerts
3404 are directly visible to potential attackers, but the information
3405 may leak via logfiles.)
3407 Similar changes are not required for the SSL 2.0 implementation
3408 because the number of padding bytes is sent in clear for SSL 2.0,
3409 and the extra bytes are just ignored. However ssl/s2_pkt.c
3410 failed to verify that the purported number of padding bytes is in
3414 *) Add OpenUNIX-8 support including shared libraries
3415 (Boyd Lynn Gerber <gerberb@zenez.com>).
3418 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
3419 'wristwatch attack' using huge encoding parameters (cf.
3420 James H. Manger's CRYPTO 2001 paper). Note that the
3421 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
3422 encoding parameters and hence was not vulnerable.
3425 *) BN_sqr() bug fix.
3426 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
3428 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
3429 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
3430 followed by modular reduction.
3431 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
3433 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
3434 equivalent based on BN_pseudo_rand() instead of BN_rand().
3437 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
3438 This function was broken, as the check for a new client hello message
3439 to handle SGC did not allow these large messages.
3440 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
3443 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
3446 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
3447 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
3450 *) Rework the configuration and shared library support for Tru64 Unix.
3451 The configuration part makes use of modern compiler features and
3452 still retains old compiler behavior for those that run older versions
3453 of the OS. The shared library support part includes a variant that
3454 uses the RPATH feature, and is available through the special
3455 configuration target "alpha-cc-rpath", which will never be selected
3457 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
3459 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
3460 with the same message size as in ssl3_get_certificate_request().
3461 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
3462 messages might inadvertently be reject as too long.
3463 [Petr Lampa <lampa@fee.vutbr.cz>]
3465 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
3468 *) Modified SSL library such that the verify_callback that has been set
3469 specificly for an SSL object with SSL_set_verify() is actually being
3470 used. Before the change, a verify_callback set with this function was
3471 ignored and the verify_callback() set in the SSL_CTX at the time of
3472 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
3473 to allow the necessary settings.
3476 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
3477 explicitly to NULL, as at least on Solaris 8 this seems not always to be
3478 done automatically (in contradiction to the requirements of the C
3479 standard). This made problems when used from OpenSSH.
3482 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
3483 dh->length and always used
3485 BN_rand_range(priv_key, dh->p).
3487 BN_rand_range() is not necessary for Diffie-Hellman, and this
3488 specific range makes Diffie-Hellman unnecessarily inefficient if
3489 dh->length (recommended exponent length) is much smaller than the
3490 length of dh->p. We could use BN_rand_range() if the order of
3491 the subgroup was stored in the DH structure, but we only have
3496 BN_rand(priv_key, l, ...)
3498 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
3504 RSA_eay_public_encrypt
3505 RSA_eay_private_decrypt
3506 RSA_eay_private_encrypt (signing)
3507 RSA_eay_public_decrypt (signature verification)
3509 (default implementations for RSA_public_encrypt,
3510 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
3511 always reject numbers >= n.
3514 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
3515 to synchronize access to 'locking_thread'. This is necessary on
3516 systems where access to 'locking_thread' (an 'unsigned long'
3517 variable) is not atomic.
3520 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
3521 *before* setting the 'crypto_lock_rand' flag. The previous code had
3522 a race condition if 0 is a valid thread ID.
3523 [Travis Vitek <vitek@roguewave.com>]
3525 *) Add support for shared libraries under Irix.
3526 [Albert Chin-A-Young <china@thewrittenword.com>]
3528 *) Add configuration option to build on Linux on both big-endian and
3530 [Ralf Baechle <ralf@uni-koblenz.de>]
3532 *) Add the possibility to create shared libraries on HP-UX.
3535 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
3537 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
3538 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
3539 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
3540 PRNG state recovery was possible based on the output of
3541 one PRNG request appropriately sized to gain knowledge on
3542 'md' followed by enough consecutive 1-byte PRNG requests
3543 to traverse all of 'state'.
3545 1. When updating 'md_local' (the current thread's copy of 'md')
3546 during PRNG output generation, hash all of the previous
3547 'md_local' value, not just the half used for PRNG output.
3549 2. Make the number of bytes from 'state' included into the hash
3550 independent from the number of PRNG bytes requested.
3552 The first measure alone would be sufficient to avoid
3553 Markku-Juhani's attack. (Actually it had never occurred
3554 to me that the half of 'md_local' used for chaining was the
3555 half from which PRNG output bytes were taken -- I had always
3556 assumed that the secret half would be used.) The second
3557 measure makes sure that additional data from 'state' is never
3558 mixed into 'md_local' in small portions; this heuristically
3559 further strengthens the PRNG.
3562 *) Fix crypto/bn/asm/mips3.s.
3565 *) When only the key is given to "enc", the IV is undefined. Print out
3566 an error message in this case.
3569 *) Handle special case when X509_NAME is empty in X509 printing routines.
3572 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
3573 positive and less than q.
3576 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
3577 used: it isn't thread safe and the add_lock_callback should handle
3579 [Paul Rose <Paul.Rose@bridge.com>]
3581 *) Verify that incoming data obeys the block size in
3582 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
3586 [Ulf Möller, Bodo Möller]
3588 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
3589 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
3590 when fixing the server behaviour for backwards-compatible 'client
3591 hello' messages. (Note that the attack is impractical against
3592 SSL 3.0 and TLS 1.0 anyway because length and version checking
3593 means that the probability of guessing a valid ciphertext is
3594 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
3597 Before 0.9.5, the countermeasure (hide the error by generating a
3598 random 'decryption result') did not work properly because
3599 ERR_clear_error() was missing, meaning that SSL_get_error() would
3600 detect the supposedly ignored error.
3602 Both problems are now fixed.
3605 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
3606 (previously it was 1024).
3609 *) Fix for compatibility mode trust settings: ignore trust settings
3610 unless some valid trust or reject settings are present.
3613 *) Fix for blowfish EVP: its a variable length cipher.
3616 *) Fix various bugs related to DSA S/MIME verification. Handle missing
3617 parameters in DSA public key structures and return an error in the
3618 DSA routines if parameters are absent.
3621 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
3622 in the current directory if neither $RANDFILE nor $HOME was set.
3623 RAND_file_name() in 0.9.6a returned NULL in this case. This has
3624 caused some confusion to Windows users who haven't defined $HOME.
3625 Thus RAND_file_name() is changed again: e_os.h can define a
3626 DEFAULT_HOME, which will be used if $HOME is not set.
3627 For Windows, we use "C:"; on other platforms, we still require
3628 environment variables.
3630 *) Move 'if (!initialized) RAND_poll()' into regions protected by
3631 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
3632 having multiple threads call RAND_poll() concurrently.
3635 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
3636 combination of a flag and a thread ID variable.
3637 Otherwise while one thread is in ssleay_rand_bytes (which sets the
3638 flag), *other* threads can enter ssleay_add_bytes without obeying
3639 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
3640 that they do not hold after the first thread unsets add_do_not_lock).
3643 *) Change bctest again: '-x' expressions are not available in all
3647 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
3649 *) Fix a couple of memory leaks in PKCS7_dataDecode()
3650 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
3652 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
3653 the default extension for executables, if any. Also, make the perl
3654 scripts that use symlink() to test if it really exists and use "cp"
3655 if it doesn't. All this made OpenSSL compilable and installable in
3659 *) Fix for asn1_GetSequence() for indefinite length constructed data.
3660 If SEQUENCE is length is indefinite just set c->slen to the total
3661 amount of data available.
3662 [Steve Henson, reported by shige@FreeBSD.org]
3663 [This change does not apply to 0.9.7.]
3665 *) Change bctest to avoid here-documents inside command substitution
3666 (workaround for FreeBSD /bin/sh bug).
3667 For compatibility with Ultrix, avoid shell functions (introduced
3668 in the bctest version that searches along $PATH).
3671 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
3672 with des_encrypt() defined on some operating systems, like Solaris
3676 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
3677 On the Importance of Eliminating Errors in Cryptographic
3678 Computations, J. Cryptology 14 (2001) 2, 101-119,
3679 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
3682 *) MIPS assembler BIGNUM division bug fix.
projects / openssl.git / blob