5 Changes between 0.9.8 and 0.9.9 [xx XXX xxxx]
9 Changes between 0.9.7h and 0.9.8 [xx XXX xxxx]
11 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
12 involves renaming the source and generated shared-libs for
13 both. The engines will accept the corrected or legacy ids
14 ('ncipher' and '4758_cca' respectively) when binding. NB,
15 this only applies when building 'shared'.
16 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
18 *) Add attribute functions to EVP_PKEY structure. Modify
19 PKCS12_create() to recognize a CSP name attribute and
20 use it. Make -CSP option work again in pkcs12 utility.
23 *) Add new functionality to the bn blinding code:
24 - automatic re-creation of the BN_BLINDING parameters after
25 a fixed number of uses (currently 32)
26 - add new function for parameter creation
27 - introduce flags to control the update behaviour of the
28 BN_BLINDING parameters
29 - hide BN_BLINDING structure
30 Add a second BN_BLINDING slot to the RSA structure to improve
31 performance when a single RSA object is shared among several
35 *) Add support for DTLS.
36 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
38 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
39 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
42 *) Remove buggy and incompletet DH cert support from
43 ssl/ssl_rsa.c and ssl/s3_both.c
46 *) Use SHA-1 instead of MD5 as the default digest algorithm for
47 the apps/openssl applications.
50 *) Compile clean with "-Wall -Wmissing-prototypes
51 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
52 DEBUG_SAFESTACK must also be set.
55 *) Change ./Configure so that certain algorithms can be disabled by default.
56 The new counterpiece to "no-xxx" is "enable-xxx".
58 The patented RC5 and MDC2 algorithms will now be disabled unless
59 "enable-rc5" and "enable-mdc2", respectively, are specified.
61 (IDEA remains enabled despite being patented. This is because IDEA
62 is frequently required for interoperability, and there is no license
63 fee for non-commercial use. As before, "no-idea" can be used to
64 avoid this algorithm.)
68 *) Add processing of proxy certificates (see RFC 3820). This work was
69 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
70 EGEE (Enabling Grids for E-science in Europe).
73 *) RC4 performance overhaul on modern architectures/implementations, such
74 as Intel P4, IA-64 and AMD64.
77 *) New utility extract-section.pl. This can be used specify an alternative
78 section number in a pod file instead of having to treat each file as
79 a separate case in Makefile. This can be done by adding two lines to the
82 =for comment openssl_section:XXX
84 The blank line is mandatory.
88 *) New arguments -certform, -keyform and -pass for s_client and s_server
89 to allow alternative format key and certificate files and passphrase
93 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
94 update associated structures and add various utility functions.
96 Add new policy related verify parameters, include policy checking in
97 standard verify code. Enhance 'smime' application with extra parameters
98 to support policy checking and print out.
101 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
102 Nehemiah processors. These extensions support AES encryption in hardware
103 as well as RNG (though RNG support is currently disabled).
104 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
106 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
109 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
110 [Andy Polyakov and a number of other people]
112 *) Improved PowerPC platform support. Most notably BIGNUM assembler
113 implementation contributed by IBM.
114 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
116 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
117 exponent rather than 'unsigned long'. There is a corresponding change to
118 the new 'rsa_keygen' element of the RSA_METHOD structure.
119 [Jelte Jansen, Geoff Thorpe]
121 *) Functionality for creating the initial serial number file is now
122 moved from CA.pl to the 'ca' utility with a new option -create_serial.
124 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
125 number file to 1, which is bound to cause problems. To avoid
126 the problems while respecting compatibility between different 0.9.7
127 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
128 CA.pl for serial number initialization. With the new release 0.9.8,
129 we can fix the problem directly in the 'ca' utility.)
132 *) Reduced header interdepencies by declaring more opaque objects in
133 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
134 give fewer recursive includes, which could break lazy source code - so
135 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
136 developers should define this symbol when building and using openssl to
137 ensure they track the recommended behaviour, interfaces, [etc], but
138 backwards-compatible behaviour prevails when this isn't defined.
141 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
144 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
145 This will generate a random key of the appropriate length based on the
146 cipher context. The EVP_CIPHER can provide its own random key generation
147 routine to support keys of a specific form. This is used in the des and
148 3des routines to generate a key of the correct parity. Update S/MIME
149 code to use new functions and hence generate correct parity DES keys.
150 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
151 valid (weak or incorrect parity).
154 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
155 as looking them up. This is useful when the verified structure may contain
156 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
157 present unless the new PKCS7_NO_CRL flag is asserted.
160 *) Extend ASN1 oid configuration module. It now additionally accepts the
163 shortName = some long name, 1.2.3.4
166 *) Reimplemented the BN_CTX implementation. There is now no more static
167 limitation on the number of variables it can handle nor the depth of the
168 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
169 information can now expand as required, and rather than having a single
170 static array of bignums, BN_CTX now uses a linked-list of such arrays
171 allowing it to expand on demand whilst maintaining the usefulness of
175 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
176 to allow all RSA operations to function using a single BN_CTX.
179 *) Preliminary support for certificate policy evaluation and checking. This
180 is initially intended to pass the tests outlined in "Conformance Testing
181 of Relying Party Client Certificate Path Processing Logic" v1.07.
184 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
185 remained unused and not that useful. A variety of other little bignum
186 tweaks and fixes have also been made continuing on from the audit (see
190 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
191 associated ASN1, EVP and SSL functions and old ASN1 macros.
194 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
195 and this should never fail. So the return value from the use of
196 BN_set_word() (which can fail due to needless expansion) is now deprecated;
197 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
200 *) BN_CTX_get() should return zero-valued bignums, providing the same
201 initialised value as BN_new().
202 [Geoff Thorpe, suggested by Ulf Möller]
204 *) Support for inhibitAnyPolicy certificate extension.
207 *) An audit of the BIGNUM code is underway, for which debugging code is
208 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
209 is considered valid when processing BIGNUMs, and causes execution to
210 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
211 further steps are taken to deliberately pollute unused data in BIGNUM
212 structures to try and expose faulty code further on. For now, openssl will
213 (in its default mode of operation) continue to tolerate the inconsistent
214 forms that it has tolerated in the past, but authors and packagers should
215 consider trying openssl and their own applications when compiled with
216 these debugging symbols defined. It will help highlight potential bugs in
217 their own code, and will improve the test coverage for OpenSSL itself. At
218 some point, these tighter rules will become openssl's default to improve
219 maintainability, though the assert()s and other overheads will remain only
220 in debugging configurations. See bn.h for more details.
221 [Geoff Thorpe, Nils Larsch, Ulf Möller]
223 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
224 that can only be obtained through BN_CTX_new() (which implicitly
225 initialises it). The presence of this function only made it possible
226 to overwrite an existing structure (and cause memory leaks).
229 *) Because of the callback-based approach for implementing LHASH as a
230 template type, lh_insert() adds opaque objects to hash-tables and
231 lh_doall() or lh_doall_arg() are typically used with a destructor callback
232 to clean up those corresponding objects before destroying the hash table
233 (and losing the object pointers). So some over-zealous constifications in
234 LHASH have been relaxed so that lh_insert() does not take (nor store) the
235 objects as "const" and the lh_doall[_arg] callback wrappers are not
236 prototyped to have "const" restrictions on the object pointers they are
237 given (and so aren't required to cast them away any more).
240 *) The tmdiff.h API was so ugly and minimal that our own timing utility
241 (speed) prefers to use its own implementation. The two implementations
242 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
243 its object type properly exposed (MS_TM) instead of casting to/from "char
244 *". This may still change yet if someone realises MS_TM and "ms_time_***"
245 aren't necessarily the greatest nomenclatures - but this is what was used
246 internally to the implementation so I've used that for now.
249 *) Ensure that deprecated functions do not get compiled when
250 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
251 the self-tests were still using deprecated key-generation functions so
252 these have been updated also.
255 *) Reorganise PKCS#7 code to separate the digest location functionality
256 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
257 New function PKCS7_set_digest() to set the digest type for PKCS#7
258 digestedData type. Add additional code to correctly generate the
259 digestedData type and add support for this type in PKCS7 initialization
263 *) New function PKCS7_set0_type_other() this initializes a PKCS7
264 structure of type "other".
267 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
268 sure the loop does correctly stop and breaking ("division by zero")
269 modulus operations are not performed. The (pre-generated) prime
270 table crypto/bn/bn_prime.h was already correct, but it could not be
271 re-generated on some platforms because of the "division by zero"
272 situation in the script.
273 [Ralf S. Engelschall]
275 *) Update support for ECC-based TLS ciphersuites according to
276 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
277 SHA-1 now is only used for "small" curves (where the
278 representation of a field element takes up to 24 bytes); for
279 larger curves, the field element resulting from ECDH is directly
280 used as premaster secret.
281 [Douglas Stebila (Sun Microsystems Laboratories)]
283 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
284 curve secp160r1 to the tests.
285 [Douglas Stebila (Sun Microsystems Laboratories)]
287 *) Add the possibility to load symbols globally with DSO.
288 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
290 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
291 control of the error stack.
294 *) Add support for STORE in ENGINE.
297 *) Add the STORE type. The intention is to provide a common interface
298 to certificate and key stores, be they simple file-based stores, or
299 HSM-type store, or LDAP stores, or...
300 NOTE: The code is currently UNTESTED and isn't really used anywhere.
303 *) Add a generic structure called OPENSSL_ITEM. This can be used to
304 pass a list of arguments to any function as well as provide a way
305 for a function to pass data back to the caller.
308 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
309 works like BUF_strdup() but can be used to duplicate a portion of
310 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
314 *) Add the function sk_find_ex() which works like sk_find(), but will
315 return an index to an element even if an exact match couldn't be
316 found. The index is guaranteed to point at the element where the
317 searched-for key would be inserted to preserve sorting order.
320 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
321 takes an extra flags argument for optional functionality. Currently,
322 the following flags are defined:
324 OBJ_BSEARCH_VALUE_ON_NOMATCH
325 This one gets OBJ_bsearch_ex() to return a pointer to the first
326 element where the comparing function returns a negative or zero
329 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
330 This one gets OBJ_bsearch_ex() to return a pointer to the first
331 element where the comparing function returns zero. This is useful
332 if there are more than one element where the comparing function
336 *) Make it possible to create self-signed certificates with 'openssl ca'
337 in such a way that the self-signed certificate becomes part of the
338 CA database and uses the same mechanisms for serial number generation
339 as all other certificate signing. The new flag '-selfsign' enables
340 this functionality. Adapt CA.sh and CA.pl.in.
343 *) Add functionality to check the public key of a certificate request
344 against a given private. This is useful to check that a certificate
345 request can be signed by that key (self-signing).
348 *) Make it possible to have multiple active certificates with the same
349 subject in the CA index file. This is done only if the keyword
350 'unique_subject' is set to 'no' in the main CA section (default
351 if 'CA_default') of the configuration file. The value is saved
352 with the database itself in a separate index attribute file,
353 named like the index file with '.attr' appended to the name.
356 *) Generate muti valued AVAs using '+' notation in config files for
360 *) Support for nameConstraints certificate extension.
363 *) Support for policyConstraints certificate extension.
366 *) Support for policyMappings certificate extension.
369 *) Make sure the default DSA_METHOD implementation only uses its
370 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
371 and change its own handlers to be NULL so as to remove unnecessary
372 indirection. This lets alternative implementations fallback to the
373 default implementation more easily.
376 *) Support for directoryName in GeneralName related extensions
380 *) Make it possible to link applications using Makefile.shared.
381 Make that possible even when linking against static libraries!
384 *) Support for single pass processing for S/MIME signing. This now
385 means that S/MIME signing can be done from a pipe, in addition
386 cleartext signing (multipart/signed type) is effectively streaming
387 and the signed data does not need to be all held in memory.
389 This is done with a new flag PKCS7_STREAM. When this flag is set
390 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
391 is done after the data is output (and digests calculated) in
395 *) Add full support for -rpath/-R, both in shared libraries and
396 applications, at least on the platforms where it's known how
400 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
401 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
402 will now compute a table of multiples of the generator that
403 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
404 faster (notably in the case of a single point multiplication,
406 [Nils Larsch, Bodo Moeller]
408 *) IPv6 support for certificate extensions. The various extensions
409 which use the IP:a.b.c.d can now take IPv6 addresses using the
410 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
414 *) Added an ENGINE that implements RSA by performing private key
415 exponentiations with the GMP library. The conversions to and from
416 GMP's mpz_t format aren't optimised nor are any montgomery forms
417 cached, and on x86 it appears OpenSSL's own performance has caught up.
418 However there are likely to be other architectures where GMP could
419 provide a boost. This ENGINE is not built in by default, but it can be
420 specified at Configure time and should be accompanied by the necessary
421 linker additions, eg;
422 ./config -DOPENSSL_USE_GMP -lgmp
425 *) "openssl engine" will not display ENGINE/DSO load failure errors when
426 testing availability of engines with "-t" - the old behaviour is
427 produced by increasing the feature's verbosity with "-tt".
430 *) ECDSA routines: under certain error conditions uninitialized BN objects
431 could be freed. Solution: make sure initialization is performed early
432 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
436 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
437 and DH_METHOD (eg. by ENGINE implementations) to override the normal
438 software implementations. For DSA and DH, parameter generation can
439 also be overriden by providing the appropriate method callbacks.
442 *) Change the "progress" mechanism used in key-generation and
443 primality testing to functions that take a new BN_GENCB pointer in
444 place of callback/argument pairs. The new API functions have "_ex"
445 postfixes and the older functions are reimplemented as wrappers for
446 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
447 declarations of the old functions to help (graceful) attempts to
448 migrate to the new functions. Also, the new key-generation API
449 functions operate on a caller-supplied key-structure and return
450 success/failure rather than returning a key or NULL - this is to
451 help make "keygen" another member function of RSA_METHOD etc.
453 Example for using the new callback interface:
455 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
459 BN_GENCB_set(&my_cb, my_callback, my_arg);
461 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
462 /* For the meaning of a, b in calls to my_callback(), see the
463 * documentation of the function that calls the callback.
464 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
465 * my_callback should return 1 if it wants BN_is_prime_ex()
466 * to continue, or 0 to stop.
471 *) Change the ZLIB compression method to be stateful, and make it
472 available to TLS with the number defined in
473 draft-ietf-tls-compression-04.txt.
476 *) Add the ASN.1 structures and functions for CertificatePair, which
477 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
479 CertificatePair ::= SEQUENCE {
480 forward [0] Certificate OPTIONAL,
481 reverse [1] Certificate OPTIONAL,
482 -- at least one of the pair shall be present -- }
484 Also implement the PEM functions to read and write certificate
485 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
487 This needed to be defined, mostly for the sake of the LDAP
488 attribute crossCertificatePair, but may prove useful elsewhere as
492 *) Make it possible to inhibit symlinking of shared libraries in
493 Makefile.shared, for Cygwin's sake.
496 *) Extend the BIGNUM API by creating a function
497 void BN_set_negative(BIGNUM *a, int neg);
498 and a macro that behave like
499 int BN_is_negative(const BIGNUM *a);
501 to avoid the need to access 'a->neg' directly in applications.
504 *) Implement fast modular reduction for pseudo-Mersenne primes
505 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
506 EC_GROUP_new_curve_GFp() will now automatically use this
508 [Nils Larsch <nla@trustcenter.de>]
510 *) Add new lock type (CRYPTO_LOCK_BN).
513 *) Change the ENGINE framework to automatically load engines
514 dynamically from specific directories unless they could be
515 found to already be built in or loaded. Move all the
516 current engines except for the cryptodev one to a new
518 The engines in engines/ are built as shared libraries if
519 the "shared" options was given to ./Configure or ./config.
520 Otherwise, they are inserted in libcrypto.a.
521 /usr/local/ssl/engines is the default directory for dynamic
522 engines, but that can be overriden at configure time through
523 the usual use of --prefix and/or --openssldir, and at run
524 time with the environment variable OPENSSL_ENGINES.
525 [Geoff Thorpe and Richard Levitte]
527 *) Add Makefile.shared, a helper makefile to build shared
528 libraries. Addapt Makefile.org.
531 *) Add version info to Win32 DLLs.
532 [Peter 'Luna' Runestig" <peter@runestig.com>]
534 *) Add new 'medium level' PKCS#12 API. Certificates and keys
535 can be added using this API to created arbitrary PKCS#12
536 files while avoiding the low level API.
538 New options to PKCS12_create(), key or cert can be NULL and
539 will then be omitted from the output file. The encryption
540 algorithm NIDs can be set to -1 for no encryption, the mac
541 iteration count can be set to 0 to omit the mac.
543 Enhance pkcs12 utility by making the -nokeys and -nocerts
544 options work when creating a PKCS#12 file. New option -nomac
545 to omit the mac, NONE can be set for an encryption algorithm.
546 New code is modified to use the enhanced PKCS12_create()
547 instead of the low level API.
550 *) Extend ASN1 encoder to support indefinite length constructed
551 encoding. This can output sequences tags and octet strings in
552 this form. Modify pk7_asn1.c to support indefinite length
553 encoding. This is experimental and needs additional code to
554 be useful, such as an ASN1 bio and some enhanced streaming
557 Extend template encode functionality so that tagging is passed
558 down to the template encoder.
561 *) Let 'openssl req' fail if an argument to '-newkey' is not
562 recognized instead of using RSA as a default.
565 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
566 As these are not official, they are not included in "ALL";
567 the "ECCdraft" ciphersuite group alias can be used to select them.
568 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
570 *) Add ECDH engine support.
571 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
573 *) Add ECDH in new directory crypto/ecdh/.
574 [Douglas Stebila (Sun Microsystems Laboratories)]
576 *) Let BN_rand_range() abort with an error after 100 iterations
577 without success (which indicates a broken PRNG).
580 *) Change BN_mod_sqrt() so that it verifies that the input value
581 is really the square of the return value. (Previously,
582 BN_mod_sqrt would show GIGO behaviour.)
585 *) Add named elliptic curves over binary fields from X9.62, SECG,
586 and WAP/WTLS; add OIDs that were still missing.
588 [Sheueling Chang Shantz and Douglas Stebila
589 (Sun Microsystems Laboratories)]
591 *) Extend the EC library for elliptic curves over binary fields
592 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
595 EC_GF2m_simple_method
599 EC_GROUP_new_curve_GF2m
600 EC_GROUP_set_curve_GF2m
601 EC_GROUP_get_curve_GF2m
602 EC_POINT_set_affine_coordinates_GF2m
603 EC_POINT_get_affine_coordinates_GF2m
604 EC_POINT_set_compressed_coordinates_GF2m
606 Point compression for binary fields is disabled by default for
607 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
610 As binary polynomials are represented as BIGNUMs, various members
611 of the EC_GROUP and EC_POINT data structures can be shared
612 between the implementations for prime fields and binary fields;
613 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
614 are essentially identical to their ..._GFp counterparts.
615 (For simplicity, the '..._GFp' prefix has been dropped from
616 various internal method names.)
618 An internal 'field_div' method (similar to 'field_mul' and
619 'field_sqr') has been added; this is used only for binary fields.
621 [Sheueling Chang Shantz and Douglas Stebila
622 (Sun Microsystems Laboratories)]
624 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
625 through methods ('mul', 'precompute_mult').
627 The generic implementations (now internally called 'ec_wNAF_mul'
628 and 'ec_wNAF_precomputed_mult') remain the default if these
629 methods are undefined.
631 [Sheueling Chang Shantz and Douglas Stebila
632 (Sun Microsystems Laboratories)]
634 *) New function EC_GROUP_get_degree, which is defined through
635 EC_METHOD. For curves over prime fields, this returns the bit
636 length of the modulus.
638 [Sheueling Chang Shantz and Douglas Stebila
639 (Sun Microsystems Laboratories)]
641 *) New functions EC_GROUP_dup, EC_POINT_dup.
642 (These simply call ..._new and ..._copy).
644 [Sheueling Chang Shantz and Douglas Stebila
645 (Sun Microsystems Laboratories)]
647 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
648 Polynomials are represented as BIGNUMs (where the sign bit is not
649 used) in the following functions [macros]:
652 BN_GF2m_sub [= BN_GF2m_add]
653 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
654 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
655 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
657 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
658 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
659 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
660 BN_GF2m_cmp [= BN_ucmp]
662 (Note that only the 'mod' functions are actually for fields GF(2^m).
663 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
665 For some functions, an the irreducible polynomial defining a
666 field can be given as an 'unsigned int[]' with strictly
667 decreasing elements giving the indices of those bits that are set;
668 i.e., p[] represents the polynomial
669 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
671 p[0] > p[1] > ... > p[k] = 0.
672 This applies to the following functions:
677 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
678 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
681 BN_GF2m_mod_solve_quad_arr
685 Conversion can be performed by the following functions:
690 bntest.c has additional tests for binary polynomial arithmetic.
692 Two implementations for BN_GF2m_mod_div() are available.
693 The default algorithm simply uses BN_GF2m_mod_inv() and
694 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
695 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
696 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
698 [Sheueling Chang Shantz and Douglas Stebila
699 (Sun Microsystems Laboratories)]
701 *) Add new error code 'ERR_R_DISABLED' that can be used when some
702 functionality is disabled at compile-time.
703 [Douglas Stebila <douglas.stebila@sun.com>]
705 *) Change default behaviour of 'openssl asn1parse' so that more
706 information is visible when viewing, e.g., a certificate:
708 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
709 mode the content of non-printable OCTET STRINGs is output in a
710 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
711 avoid the appearance of a printable string.
712 [Nils Larsch <nla@trustcenter.de>]
714 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
716 EC_GROUP_set_asn1_flag()
717 EC_GROUP_get_asn1_flag()
718 EC_GROUP_set_point_conversion_form()
719 EC_GROUP_get_point_conversion_form()
720 These control ASN1 encoding details:
721 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
722 has been set to OPENSSL_EC_NAMED_CURVE.
723 - Points are encoded in uncompressed form by default; options for
724 asn1_for are as for point2oct, namely
725 POINT_CONVERSION_COMPRESSED
726 POINT_CONVERSION_UNCOMPRESSED
727 POINT_CONVERSION_HYBRID
729 Also add 'seed' and 'seed_len' members to EC_GROUP with access
733 EC_GROUP_get_seed_len()
734 This is used only for ASN1 purposes (so far).
735 [Nils Larsch <nla@trustcenter.de>]
737 *) Add 'field_type' member to EC_METHOD, which holds the NID
738 of the appropriate field type OID. The new function
739 EC_METHOD_get_field_type() returns this value.
740 [Nils Larsch <nla@trustcenter.de>]
747 providing useful interfaces to EC_POINT_point2oct() and
748 EC_POINT_oct2point().
749 [Nils Larsch <nla@trustcenter.de>]
751 *) Change internals of the EC library so that the functions
752 EC_GROUP_set_generator()
753 EC_GROUP_get_generator()
755 EC_GROUP_get_cofactor()
756 are implemented directly in crypto/ec/ec_lib.c and not dispatched
757 to methods, which would lead to unnecessary code duplication when
758 adding different types of curves.
759 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
761 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
762 arithmetic, and such that modified wNAFs are generated
763 (which avoid length expansion in many cases).
766 *) Add a function EC_GROUP_check_discriminant() (defined via
767 EC_METHOD) that verifies that the curve discriminant is non-zero.
769 Add a function EC_GROUP_check() that makes some sanity tests
770 on a EC_GROUP, its generator and order. This includes
771 EC_GROUP_check_discriminant().
772 [Nils Larsch <nla@trustcenter.de>]
774 *) Add ECDSA in new directory crypto/ecdsa/.
776 Add applications 'openssl ecparam' and 'openssl ecdsa'
777 (these are based on 'openssl dsaparam' and 'openssl dsa').
779 ECDSA support is also included in various other files across the
780 library. Most notably,
781 - 'openssl req' now has a '-newkey ecdsa:file' option;
782 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
783 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
784 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
785 them suitable for ECDSA where domain parameters must be
786 extracted before the specific public key;
787 - ECDSA engine support has been added.
788 [Nils Larsch <nla@trustcenter.de>]
790 *) Include some named elliptic curves, and add OIDs from X9.62,
791 SECG, and WAP/WTLS. Each curve can be obtained from the new
793 EC_GROUP_new_by_curve_name(),
794 and the list of available named curves can be obtained with
795 EC_get_builtin_curves().
796 Also add a 'curve_name' member to EC_GROUP objects, which can be
798 EC_GROUP_set_curve_name()
799 EC_GROUP_get_curve_name()
800 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
802 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
803 was actually never needed) and in BN_mul(). The removal in BN_mul()
804 required a small change in bn_mul_part_recursive() and the addition
805 of the functions bn_cmp_part_words(), bn_sub_part_words() and
806 bn_add_part_words(), which do the same thing as bn_cmp_words(),
807 bn_sub_words() and bn_add_words() except they take arrays with
811 Changes between 0.9.7g and 0.9.7h [XX xxx XXXX]
813 *) Minimal support for X9.31 signatures and PSS padding modes. This is
814 mainly for FIPS compliance and not fully integrated at this stage.
817 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
818 the exponentiation using a fixed-length exponent. (Otherwise,
819 the information leaked through timing could expose the secret key
820 after many signatures; cf. Bleichenbacher's attack on DSA with
824 *) Make a new fixed-window mod_exp implementation the default for
825 RSA, DSA, and DH private-key operations so that the sequence of
826 squares and multiplies and the memory access pattern are
827 independent of the particular secret key. This will mitigate
828 cache-timing and potential related attacks.
830 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
831 and this is automatically used by BN_mod_exp_mont() if the new flag
832 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
833 will use this BN flag for private exponents unless the flag
834 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
835 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
837 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
839 *) Change the client implementation for SSLv23_method() and
840 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
841 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
842 (Previously, the SSL 2.0 backwards compatible Client Hello
843 message format would be used even with SSL_OP_NO_SSLv2.)
846 *) Add support for smime-type MIME parameter in S/MIME messages which some
850 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
851 a threadsafe manner. Modify rsa code to use new function and add calls
852 to dsa and dh code (which had race conditions before).
855 *) Include the fixed error library code in the C error file definitions
856 instead of fixing them up at runtime. This keeps the error code
860 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
862 *) Fixes for newer kerberos headers. NB: the casts are needed because
863 the 'length' field is signed on one version and unsigned on another
864 with no (?) obvious way to tell the difference, without these VC++
865 complains. Also the "definition" of FAR (blank) is no longer included
866 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
867 some needed definitions.
870 *) Undo Cygwin change.
873 *) Added support for proxy certificates according to RFC 3820.
874 Because they may be a security thread to unaware applications,
875 they must be explicitely allowed in run-time. See
876 docs/HOWTO/proxy_certificates.txt for further information.
879 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
881 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
882 server and client random values. Previously
883 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
884 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
886 This change has negligible security impact because:
888 1. Server and client random values still have 24 bytes of pseudo random
891 2. Server and client random values are sent in the clear in the initial
894 3. The master secret is derived using the premaster secret (48 bytes in
895 size for static RSA ciphersuites) as well as client server and random
898 The OpenSSL team would like to thank the UK NISCC for bringing this issue
901 [Stephen Henson, reported by UK NISCC]
903 *) Use Windows randomness collection on Cygwin.
906 *) Fix hang in EGD/PRNGD query when communication socket is closed
907 prematurely by EGD/PRNGD.
908 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
910 *) Prompt for pass phrases when appropriate for PKCS12 input format.
913 *) Back-port of selected performance improvements from development
914 branch, as well as improved support for PowerPC platforms.
917 *) Add lots of checks for memory allocation failure, error codes to indicate
918 failure and freeing up memory if a failure occurs.
919 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
921 *) Add new -passin argument to dgst.
924 *) Perform some character comparisons of different types in X509_NAME_cmp:
925 this is needed for some certificates that reencode DNs into UTF8Strings
926 (in violation of RFC3280) and can't or wont issue name rollover
930 *) Make an explicit check during certificate validation to see that
931 the CA setting in each certificate on the chain is correct. As a
932 side effect always do the following basic checks on extensions,
933 not just when there's an associated purpose to the check:
935 - if there is an unhandled critical extension (unless the user
936 has chosen to ignore this fault)
937 - if the path length has been exceeded (if one is set at all)
938 - that certain extensions fit the associated purpose (if one has
942 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
944 *) Avoid a race condition when CRLs are checked in a multi threaded
945 environment. This would happen due to the reordering of the revoked
946 entries during signature checking and serial number lookup. Now the
947 encoding is cached and the serial number sort performed under a lock.
948 Add new STACK function sk_is_sorted().
951 *) Add Delta CRL to the extension code.
954 *) Various fixes to s3_pkt.c so alerts are sent properly.
955 [David Holmes <d.holmes@f5.com>]
957 *) Reduce the chances of duplicate issuer name and serial numbers (in
958 violation of RFC3280) using the OpenSSL certificate creation utilities.
959 This is done by creating a random 64 bit value for the initial serial
960 number when a serial number file is created or when a self signed
961 certificate is created using 'openssl req -x509'. The initial serial
962 number file is created using 'openssl x509 -next_serial' in CA.pl
963 rather than being initialized to 1.
966 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
968 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
969 by using the Codenomicon TLS Test Tool (CAN-2004-0079)
970 [Joe Orton, Steve Henson]
972 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
974 [Joe Orton, Steve Henson]
976 *) Make it possible to have multiple active certificates with the same
977 subject in the CA index file. This is done only if the keyword
978 'unique_subject' is set to 'no' in the main CA section (default
979 if 'CA_default') of the configuration file. The value is saved
980 with the database itself in a separate index attribute file,
981 named like the index file with '.attr' appended to the name.
984 *) X509 verify fixes. Disable broken certificate workarounds when
985 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
986 keyUsage extension present. Don't accept CRLs with unhandled critical
987 extensions: since verify currently doesn't process CRL extensions this
988 rejects a CRL with *any* critical extensions. Add new verify error codes
992 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
993 A clarification of RFC2560 will require the use of OCTET STRINGs and
994 some implementations cannot handle the current raw format. Since OpenSSL
995 copies and compares OCSP nonces as opaque blobs without any attempt at
996 parsing them this should not create any compatibility issues.
999 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
1000 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
1001 this HMAC (and other) operations are several times slower than OpenSSL
1005 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
1006 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1008 *) Use the correct content when signing type "other".
1011 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
1013 *) Fix various bugs revealed by running the NISCC test suite:
1015 Stop out of bounds reads in the ASN1 code when presented with
1016 invalid tags (CAN-2003-0543 and CAN-2003-0544).
1018 Free up ASN1_TYPE correctly if ANY type is invalid (CAN-2003-0545).
1020 If verify callback ignores invalid public key errors don't try to check
1021 certificate signature with the NULL public key.
1025 *) New -ignore_err option in ocsp application to stop the server
1026 exiting on the first error in a request.
1029 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
1030 if the server requested one: as stated in TLS 1.0 and SSL 3.0
1034 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
1035 extra data after the compression methods not only for TLS 1.0
1036 but also for SSL 3.0 (as required by the specification).
1037 [Bodo Moeller; problem pointed out by Matthias Loepfe]
1039 *) Change X509_certificate_type() to mark the key as exported/exportable
1040 when it's 512 *bits* long, not 512 bytes.
1043 *) Change AES_cbc_encrypt() so it outputs exact multiple of
1044 blocks during encryption.
1047 *) Various fixes to base64 BIO and non blocking I/O. On write
1048 flushes were not handled properly if the BIO retried. On read
1049 data was not being buffered properly and had various logic bugs.
1050 This also affects blocking I/O when the data being decoded is a
1054 *) Various S/MIME bugfixes and compatibility changes:
1055 output correct application/pkcs7 MIME type if
1056 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
1057 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
1058 of files as .eml work). Correctly handle very long lines in MIME
1062 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
1064 *) Countermeasure against the Klima-Pokorny-Rosa extension of
1065 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
1066 a protocol version number mismatch like a decryption error
1067 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
1070 *) Turn on RSA blinding by default in the default implementation
1071 to avoid a timing attack. Applications that don't want it can call
1072 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
1073 They would be ill-advised to do so in most cases.
1074 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
1076 *) Change RSA blinding code so that it works when the PRNG is not
1077 seeded (in this case, the secret RSA exponent is abused as
1078 an unpredictable seed -- if it is not unpredictable, there
1079 is no point in blinding anyway). Make RSA blinding thread-safe
1080 by remembering the creator's thread ID in rsa->blinding and
1081 having all other threads use local one-time blinding factors
1082 (this requires more computation than sharing rsa->blinding, but
1083 avoids excessive locking; and if an RSA object is not shared
1084 between threads, blinding will still be very fast).
1087 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
1088 ENGINE as defaults for all supported algorithms irrespective of
1089 the 'flags' parameter. 'flags' is now honoured, so applications
1090 should make sure they are passing it correctly.
1093 *) Target "mingw" now allows native Windows code to be generated in
1094 the Cygwin environment as well as with the MinGW compiler.
1097 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
1099 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
1100 via timing by performing a MAC computation even if incorrrect
1101 block cipher padding has been found. This is a countermeasure
1102 against active attacks where the attacker has to distinguish
1103 between bad padding and a MAC verification error. (CAN-2003-0078)
1105 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
1106 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
1107 Martin Vuagnoux (EPFL, Ilion)]
1109 *) Make the no-err option work as intended. The intention with no-err
1110 is not to have the whole error stack handling routines removed from
1111 libcrypto, it's only intended to remove all the function name and
1112 reason texts, thereby removing some of the footprint that may not
1113 be interesting if those errors aren't displayed anyway.
1115 NOTE: it's still possible for any application or module to have it's
1116 own set of error texts inserted. The routines are there, just not
1117 used by default when no-err is given.
1120 *) Add support for FreeBSD on IA64.
1121 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
1123 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
1124 Kerberos function mit_des_cbc_cksum(). Before this change,
1125 the value returned by DES_cbc_cksum() was like the one from
1126 mit_des_cbc_cksum(), except the bytes were swapped.
1127 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
1129 *) Allow an application to disable the automatic SSL chain building.
1130 Before this a rather primitive chain build was always performed in
1131 ssl3_output_cert_chain(): an application had no way to send the
1132 correct chain if the automatic operation produced an incorrect result.
1134 Now the chain builder is disabled if either:
1136 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
1138 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
1140 The reasoning behind this is that an application would not want the
1141 auto chain building to take place if extra chain certificates are
1142 present and it might also want a means of sending no additional
1143 certificates (for example the chain has two certificates and the
1147 *) Add the possibility to build without the ENGINE framework.
1148 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1150 *) Under Win32 gmtime() can return NULL: check return value in
1151 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
1154 *) DSA routines: under certain error conditions uninitialized BN objects
1155 could be freed. Solution: make sure initialization is performed early
1156 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
1157 Nils Larsch <nla@trustcenter.de> via PR#459)
1160 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
1161 checked on reconnect on the client side, therefore session resumption
1162 could still fail with a "ssl session id is different" error. This
1163 behaviour is masked when SSL_OP_ALL is used due to
1164 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
1165 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1166 followup to PR #377.
1169 *) IA-32 assembler support enhancements: unified ELF targets, support
1170 for SCO/Caldera platforms, fix for Cygwin shared build.
1173 *) Add support for FreeBSD on sparc64. As a consequence, support for
1174 FreeBSD on non-x86 processors is separate from x86 processors on
1175 the config script, much like the NetBSD support.
1176 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
1178 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
1180 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
1183 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
1184 code (06) was taken as the first octet of the session ID and the last
1185 octet was ignored consequently. As a result SSLv2 client side session
1186 caching could not have worked due to the session ID mismatch between
1188 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1192 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
1193 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
1197 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
1198 seems that in spite of existing for more than a year, many application
1199 author have done nothing to provide the necessary callbacks, which
1200 means that this particular engine will not work properly anywhere.
1201 This is a very unfortunate situation which forces us, in the name
1202 of usability, to give the hw_ncipher.c a static lock, which is part
1204 NOTE: This is for the 0.9.7 series ONLY. This hack will never
1205 appear in 0.9.8 or later. We EXPECT application authors to have
1206 dealt properly with this when 0.9.8 is released (unless we actually
1207 make such changes in the libcrypto locking code that changes will
1208 have to be made anyway).
1211 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
1212 octets have been read, EOF or an error occurs. Without this change
1213 some truncated ASN1 structures will not produce an error.
1216 *) Disable Heimdal support, since it hasn't been fully implemented.
1217 Still give the possibility to force the use of Heimdal, but with
1218 warnings and a request that patches get sent to openssl-dev.
1221 *) Add the VC-CE target, introduce the WINCE sysname, and add
1222 INSTALL.WCE and appropriate conditionals to make it build.
1223 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1225 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
1226 cygssl-x.y.z.dll, where x, y and z are the major, minor and
1227 edit numbers of the version.
1228 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
1230 *) Introduce safe string copy and catenation functions
1231 (BUF_strlcpy() and BUF_strlcat()).
1232 [Ben Laurie (CHATS) and Richard Levitte]
1234 *) Avoid using fixed-size buffers for one-line DNs.
1235 [Ben Laurie (CHATS)]
1237 *) Add BUF_MEM_grow_clean() to avoid information leakage when
1238 resizing buffers containing secrets, and use where appropriate.
1239 [Ben Laurie (CHATS)]
1241 *) Avoid using fixed size buffers for configuration file location.
1242 [Ben Laurie (CHATS)]
1244 *) Avoid filename truncation for various CA files.
1245 [Ben Laurie (CHATS)]
1247 *) Use sizeof in preference to magic numbers.
1248 [Ben Laurie (CHATS)]
1250 *) Avoid filename truncation in cert requests.
1251 [Ben Laurie (CHATS)]
1253 *) Add assertions to check for (supposedly impossible) buffer
1255 [Ben Laurie (CHATS)]
1257 *) Don't cache truncated DNS entries in the local cache (this could
1258 potentially lead to a spoofing attack).
1259 [Ben Laurie (CHATS)]
1261 *) Fix various buffers to be large enough for hex/decimal
1262 representations in a platform independent manner.
1263 [Ben Laurie (CHATS)]
1265 *) Add CRYPTO_realloc_clean() to avoid information leakage when
1266 resizing buffers containing secrets, and use where appropriate.
1267 [Ben Laurie (CHATS)]
1269 *) Add BIO_indent() to avoid much slightly worrying code to do
1271 [Ben Laurie (CHATS)]
1273 *) Convert sprintf()/BIO_puts() to BIO_printf().
1274 [Ben Laurie (CHATS)]
1276 *) buffer_gets() could terminate with the buffer only half
1278 [Ben Laurie (CHATS)]
1280 *) Add assertions to prevent user-supplied crypto functions from
1281 overflowing internal buffers by having large block sizes, etc.
1282 [Ben Laurie (CHATS)]
1284 *) New OPENSSL_assert() macro (similar to assert(), but enabled
1286 [Ben Laurie (CHATS)]
1288 *) Eliminate unused copy of key in RC4.
1289 [Ben Laurie (CHATS)]
1291 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
1292 [Ben Laurie (CHATS)]
1294 *) Fix off-by-one error in EGD path.
1295 [Ben Laurie (CHATS)]
1297 *) If RANDFILE path is too long, ignore instead of truncating.
1298 [Ben Laurie (CHATS)]
1300 *) Eliminate unused and incorrectly sized X.509 structure
1302 [Ben Laurie (CHATS)]
1304 *) Eliminate unused and dangerous function knumber().
1305 [Ben Laurie (CHATS)]
1307 *) Eliminate unused and dangerous structure, KSSL_ERR.
1308 [Ben Laurie (CHATS)]
1310 *) Protect against overlong session ID context length in an encoded
1311 session object. Since these are local, this does not appear to be
1313 [Ben Laurie (CHATS)]
1315 *) Change from security patch (see 0.9.6e below) that did not affect
1316 the 0.9.6 release series:
1318 Remote buffer overflow in SSL3 protocol - an attacker could
1319 supply an oversized master key in Kerberos-enabled versions.
1321 [Ben Laurie (CHATS)]
1323 *) Change the SSL kerb5 codes to match RFC 2712.
1326 *) Make -nameopt work fully for req and add -reqopt switch.
1327 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
1329 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
1330 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
1332 *) Make sure tests can be performed even if the corresponding algorithms
1333 have been removed entirely. This was also the last step to make
1334 OpenSSL compilable with DJGPP under all reasonable conditions.
1335 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
1337 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
1338 to allow version independent disabling of normally unselected ciphers,
1339 which may be activated as a side-effect of selecting a single cipher.
1341 (E.g., cipher list string "RSA" enables ciphersuites that are left
1342 out of "ALL" because they do not provide symmetric encryption.
1343 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
1344 [Lutz Jaenicke, Bodo Moeller]
1346 *) Add appropriate support for separate platform-dependent build
1347 directories. The recommended way to make a platform-dependent
1348 build directory is the following (tested on Linux), maybe with
1351 # Place yourself outside of the OpenSSL source tree. In
1352 # this example, the environment variable OPENSSL_SOURCE
1353 # is assumed to contain the absolute OpenSSL source directory.
1354 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
1355 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
1356 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
1357 mkdir -p `dirname $F`
1358 ln -s $OPENSSL_SOURCE/$F $F
1361 To be absolutely sure not to disturb the source tree, a "make clean"
1362 is a good thing. If it isn't successfull, don't worry about it,
1363 it probably means the source directory is very clean.
1366 *) Make sure any ENGINE control commands make local copies of string
1367 pointers passed to them whenever necessary. Otherwise it is possible
1368 the caller may have overwritten (or deallocated) the original string
1369 data when a later ENGINE operation tries to use the stored values.
1370 [Götz Babin-Ebell <babinebell@trustcenter.de>]
1372 *) Improve diagnostics in file reading and command-line digests.
1373 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
1375 *) Add AES modes CFB and OFB to the object database. Correct an
1376 error in AES-CFB decryption.
1379 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
1380 allows existing EVP_CIPHER_CTX structures to be reused after
1381 calling EVP_*Final(). This behaviour is used by encryption
1382 BIOs and some applications. This has the side effect that
1383 applications must explicitly clean up cipher contexts with
1384 EVP_CIPHER_CTX_cleanup() or they will leak memory.
1387 *) Check the values of dna and dnb in bn_mul_recursive before calling
1388 bn_mul_comba (a non zero value means the a or b arrays do not contain
1389 n2 elements) and fallback to bn_mul_normal if either is not zero.
1392 *) Fix escaping of non-ASCII characters when using the -subj option
1393 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
1396 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
1397 form for "surname", serialNumber has no short form.
1398 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
1399 therefore remove "mail" short name for "internet 7".
1400 The OID for unique identifiers in X509 certificates is
1401 x500UniqueIdentifier, not uniqueIdentifier.
1402 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
1405 *) Add an "init" command to the ENGINE config module and auto initialize
1406 ENGINEs. Without any "init" command the ENGINE will be initialized
1407 after all ctrl commands have been executed on it. If init=1 the
1408 ENGINE is initailized at that point (ctrls before that point are run
1409 on the uninitialized ENGINE and after on the initialized one). If
1410 init=0 then the ENGINE will not be iniatialized at all.
1413 *) Fix the 'app_verify_callback' interface so that the user-defined
1414 argument is actually passed to the callback: In the
1415 SSL_CTX_set_cert_verify_callback() prototype, the callback
1416 declaration has been changed from
1419 int (*cb)(X509_STORE_CTX *,void *);
1420 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
1421 i=s->ctx->app_verify_callback(&ctx)
1422 has been changed into
1423 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
1425 To update applications using SSL_CTX_set_cert_verify_callback(),
1426 a dummy argument can be added to their callback functions.
1427 [D. K. Smetters <smetters@parc.xerox.com>]
1429 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
1430 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
1432 *) Add and OPENSSL_LOAD_CONF define which will cause
1433 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
1434 This allows older applications to transparently support certain
1435 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
1436 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
1437 load the config file and OPENSSL_add_all_algorithms_conf() which will
1438 always load it have also been added.
1441 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
1442 Adjust NIDs and EVP layer.
1443 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
1445 *) Config modules support in openssl utility.
1447 Most commands now load modules from the config file,
1448 though in a few (such as version) this isn't done
1449 because it couldn't be used for anything.
1451 In the case of ca and req the config file used is
1452 the same as the utility itself: that is the -config
1453 command line option can be used to specify an
1457 *) Move default behaviour from OPENSSL_config(). If appname is NULL
1458 use "openssl_conf" if filename is NULL use default openssl config file.
1461 *) Add an argument to OPENSSL_config() to allow the use of an alternative
1462 config section name. Add a new flag to tolerate a missing config file
1463 and move code to CONF_modules_load_file().
1466 *) Support for crypto accelerator cards from Accelerated Encryption
1467 Processing, www.aep.ie. (Use engine 'aep')
1468 The support was copied from 0.9.6c [engine] and adapted/corrected
1469 to work with the new engine framework.
1470 [AEP Inc. and Richard Levitte]
1472 *) Support for SureWare crypto accelerator cards from Baltimore
1473 Technologies. (Use engine 'sureware')
1474 The support was copied from 0.9.6c [engine] and adapted
1475 to work with the new engine framework.
1478 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
1479 make the newer ENGINE framework commands for the CHIL engine work.
1480 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
1482 *) Make it possible to produce shared libraries on ReliantUNIX.
1483 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
1485 *) Add the configuration target debug-linux-ppro.
1486 Make 'openssl rsa' use the general key loading routines
1487 implemented in apps.c, and make those routines able to
1488 handle the key format FORMAT_NETSCAPE and the variant
1490 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
1492 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
1493 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
1495 *) Add -keyform to rsautl, and document -engine.
1496 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
1498 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
1499 BIO_R_NO_SUCH_FILE error code rather than the generic
1500 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
1503 *) Add new functions
1505 ERR_peek_last_error_line
1506 ERR_peek_last_error_line_data.
1507 These are similar to
1510 ERR_peek_error_line_data,
1511 but report on the latest error recorded rather than the first one
1512 still in the error queue.
1513 [Ben Laurie, Bodo Moeller]
1515 *) default_algorithms option in ENGINE config module. This allows things
1517 default_algorithms = ALL
1518 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
1521 *) Prelminary ENGINE config module.
1524 *) New experimental application configuration code.
1527 *) Change the AES code to follow the same name structure as all other
1528 symmetric ciphers, and behave the same way. Move everything to
1529 the directory crypto/aes, thereby obsoleting crypto/rijndael.
1530 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
1532 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
1533 [Ben Laurie and Theo de Raadt]
1535 *) Add option to output public keys in req command.
1536 [Massimiliano Pala madwolf@openca.org]
1538 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
1539 (up to about 10% better than before for P-192 and P-224).
1542 *) New functions/macros
1544 SSL_CTX_set_msg_callback(ctx, cb)
1545 SSL_CTX_set_msg_callback_arg(ctx, arg)
1546 SSL_set_msg_callback(ssl, cb)
1547 SSL_set_msg_callback_arg(ssl, arg)
1549 to request calling a callback function
1551 void cb(int write_p, int version, int content_type,
1552 const void *buf, size_t len, SSL *ssl, void *arg)
1554 whenever a protocol message has been completely received
1555 (write_p == 0) or sent (write_p == 1). Here 'version' is the
1556 protocol version according to which the SSL library interprets
1557 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
1558 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
1559 the content type as defined in the SSL 3.0/TLS 1.0 protocol
1560 specification (change_cipher_spec(20), alert(21), handshake(22)).
1561 'buf' and 'len' point to the actual message, 'ssl' to the
1562 SSL object, and 'arg' is the application-defined value set by
1563 SSL[_CTX]_set_msg_callback_arg().
1565 'openssl s_client' and 'openssl s_server' have new '-msg' options
1566 to enable a callback that displays all protocol messages.
1569 *) Change the shared library support so shared libraries are built as
1570 soon as the corresponding static library is finished, and thereby get
1571 openssl and the test programs linked against the shared library.
1572 This still only happens when the keyword "shard" has been given to
1573 the configuration scripts.
1575 NOTE: shared library support is still an experimental thing, and
1576 backward binary compatibility is still not guaranteed.
1577 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
1579 *) Add support for Subject Information Access extension.
1580 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1582 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
1583 additional bytes when new memory had to be allocated, not just
1584 when reusing an existing buffer.
1587 *) New command line and configuration option 'utf8' for the req command.
1588 This allows field values to be specified as UTF8 strings.
1591 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
1592 runs for the former and machine-readable output for the latter.
1595 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
1596 of the e-mail address in the DN (i.e., it will go into a certificate
1597 extension only). The new configuration file option 'email_in_dn = no'
1598 has the same effect.
1599 [Massimiliano Pala madwolf@openca.org]
1601 *) Change all functions with names starting with des_ to be starting
1602 with DES_ instead. Add wrappers that are compatible with libdes,
1603 but are named _ossl_old_des_*. Finally, add macros that map the
1604 des_* symbols to the corresponding _ossl_old_des_* if libdes
1605 compatibility is desired. If OpenSSL 0.9.6c compatibility is
1606 desired, the des_* symbols will be mapped to DES_*, with one
1609 Since we provide two compatibility mappings, the user needs to
1610 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
1611 compatibility is desired. The default (i.e., when that macro
1612 isn't defined) is OpenSSL 0.9.6c compatibility.
1614 There are also macros that enable and disable the support of old
1615 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
1616 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
1617 are defined, the default will apply: to support the old des routines.
1619 In either case, one must include openssl/des.h to get the correct
1620 definitions. Do not try to just include openssl/des_old.h, that
1623 NOTE: This is a major break of an old API into a new one. Software
1624 authors are encouraged to switch to the DES_ style functions. Some
1625 time in the future, des_old.h and the libdes compatibility functions
1626 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
1627 default), and then completely removed.
1630 *) Test for certificates which contain unsupported critical extensions.
1631 If such a certificate is found during a verify operation it is
1632 rejected by default: this behaviour can be overridden by either
1633 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
1634 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
1635 X509_supported_extension() has also been added which returns 1 if a
1636 particular extension is supported.
1639 *) Modify the behaviour of EVP cipher functions in similar way to digests
1640 to retain compatibility with existing code.
1643 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
1644 compatibility with existing code. In particular the 'ctx' parameter does
1645 not have to be to be initialized before the call to EVP_DigestInit() and
1646 it is tidied up after a call to EVP_DigestFinal(). New function
1647 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
1648 EVP_MD_CTX_copy() changed to not require the destination to be
1649 initialized valid and new function EVP_MD_CTX_copy_ex() added which
1650 requires the destination to be valid.
1652 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
1653 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
1656 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
1657 so that complete 'Handshake' protocol structures are kept in memory
1658 instead of overwriting 'msg_type' and 'length' with 'body' data.
1661 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
1662 [Massimo Santin via Richard Levitte]
1664 *) Major restructuring to the underlying ENGINE code. This includes
1665 reduction of linker bloat, separation of pure "ENGINE" manipulation
1666 (initialisation, etc) from functionality dealing with implementations
1667 of specific crypto iterfaces. This change also introduces integrated
1668 support for symmetric ciphers and digest implementations - so ENGINEs
1669 can now accelerate these by providing EVP_CIPHER and EVP_MD
1670 implementations of their own. This is detailed in crypto/engine/README
1671 as it couldn't be adequately described here. However, there are a few
1672 API changes worth noting - some RSA, DSA, DH, and RAND functions that
1673 were changed in the original introduction of ENGINE code have now
1674 reverted back - the hooking from this code to ENGINE is now a good
1675 deal more passive and at run-time, operations deal directly with
1676 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
1677 dereferencing through an ENGINE pointer any more. Also, the ENGINE
1678 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
1679 they were not being used by the framework as there is no concept of a
1680 BIGNUM_METHOD and they could not be generalised to the new
1681 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
1682 ENGINE_cpy() has been removed as it cannot be consistently defined in
1686 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
1689 *) Change mkdef.pl to sort symbols that get the same entry number,
1690 and make sure the automatically generated functions ERR_load_*
1691 become part of libeay.num as well.
1694 *) New function SSL_renegotiate_pending(). This returns true once
1695 renegotiation has been requested (either SSL_renegotiate() call
1696 or HelloRequest/ClientHello receveived from the peer) and becomes
1697 false once a handshake has been completed.
1698 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
1699 sends a HelloRequest, but does not ensure that a handshake takes
1700 place. SSL_renegotiate_pending() is useful for checking if the
1701 client has followed the request.)
1704 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
1705 By default, clients may request session resumption even during
1706 renegotiation (if session ID contexts permit); with this option,
1707 session resumption is possible only in the first handshake.
1709 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
1710 more bits available for options that should not be part of
1711 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
1714 *) Add some demos for certificate and certificate request creation.
1717 *) Make maximum certificate chain size accepted from the peer application
1718 settable (SSL*_get/set_max_cert_list()), as proposed by
1719 "Douglas E. Engert" <deengert@anl.gov>.
1722 *) Add support for shared libraries for Unixware-7
1723 (Boyd Lynn Gerber <gerberb@zenez.com>).
1726 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
1727 be done prior to destruction. Use this to unload error strings from
1728 ENGINEs that load their own error strings. NB: This adds two new API
1729 functions to "get" and "set" this destroy handler in an ENGINE.
1732 *) Alter all existing ENGINE implementations (except "openssl" and
1733 "openbsd") to dynamically instantiate their own error strings. This
1734 makes them more flexible to be built both as statically-linked ENGINEs
1735 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
1736 Also, add stub code to each that makes building them as self-contained
1737 shared-libraries easier (see README.ENGINE).
1740 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
1741 implementations into applications that are completely implemented in
1742 self-contained shared-libraries. The "dynamic" ENGINE exposes control
1743 commands that can be used to configure what shared-library to load and
1744 to control aspects of the way it is handled. Also, made an update to
1745 the README.ENGINE file that brings its information up-to-date and
1746 provides some information and instructions on the "dynamic" ENGINE
1747 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
1750 *) Make it possible to unload ranges of ERR strings with a new
1751 "ERR_unload_strings" function.
1754 *) Add a copy() function to EVP_MD.
1757 *) Make EVP_MD routines take a context pointer instead of just the
1758 md_data void pointer.
1761 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
1762 that the digest can only process a single chunk of data
1763 (typically because it is provided by a piece of
1764 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
1765 is only going to provide a single chunk of data, and hence the
1766 framework needn't accumulate the data for oneshot drivers.
1769 *) As with "ERR", make it possible to replace the underlying "ex_data"
1770 functions. This change also alters the storage and management of global
1771 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
1772 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
1773 index counters. The API functions that use this state have been changed
1774 to take a "class_index" rather than pointers to the class's local STACK
1775 and counter, and there is now an API function to dynamically create new
1776 classes. This centralisation allows us to (a) plug a lot of the
1777 thread-safety problems that existed, and (b) makes it possible to clean
1778 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
1779 such data would previously have always leaked in application code and
1780 workarounds were in place to make the memory debugging turn a blind eye
1781 to it. Application code that doesn't use this new function will still
1782 leak as before, but their memory debugging output will announce it now
1783 rather than letting it slide.
1785 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
1786 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
1787 has a return value to indicate success or failure.
1790 *) Make it possible to replace the underlying "ERR" functions such that the
1791 global state (2 LHASH tables and 2 locks) is only used by the "default"
1792 implementation. This change also adds two functions to "get" and "set"
1793 the implementation prior to it being automatically set the first time
1794 any other ERR function takes place. Ie. an application can call "get",
1795 pass the return value to a module it has just loaded, and that module
1796 can call its own "set" function using that value. This means the
1797 module's "ERR" operations will use (and modify) the error state in the
1798 application and not in its own statically linked copy of OpenSSL code.
1801 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
1802 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
1803 the operation, and provides a more encapsulated way for external code
1804 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
1805 to use these functions rather than manually incrementing the counts.
1807 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
1810 *) Add EVP test program.
1813 *) Add symmetric cipher support to ENGINE. Expect the API to change!
1816 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
1817 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
1818 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
1819 These allow a CRL to be built without having to access X509_CRL fields
1820 directly. Modify 'ca' application to use new functions.
1823 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
1824 bug workarounds. Rollback attack detection is a security feature.
1825 The problem will only arise on OpenSSL servers when TLSv1 is not
1826 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
1827 Software authors not wanting to support TLSv1 will have special reasons
1828 for their choice and can explicitly enable this option.
1829 [Bodo Moeller, Lutz Jaenicke]
1831 *) Rationalise EVP so it can be extended: don't include a union of
1832 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
1833 (similar to those existing for EVP_CIPHER_CTX).
1838 EVP_MD_CTX_init(&md); /* new function call */
1839 EVP_DigestInit(&md, EVP_sha1());
1840 EVP_DigestUpdate(&md, in, len);
1841 EVP_DigestFinal(&md, out, NULL);
1842 EVP_MD_CTX_cleanup(&md); /* new function call */
1846 *) Make DES key schedule conform to the usual scheme, as well as
1847 correcting its structure. This means that calls to DES functions
1848 now have to pass a pointer to a des_key_schedule instead of a
1849 plain des_key_schedule (which was actually always a pointer
1852 des_key_schedule ks;
1854 des_set_key_checked(..., &ks);
1855 des_ncbc_encrypt(..., &ks, ...);
1857 (Note that a later change renames 'des_...' into 'DES_...'.)
1860 *) Initial reduction of linker bloat: the use of some functions, such as
1861 PEM causes large amounts of unused functions to be linked in due to
1862 poor organisation. For example pem_all.c contains every PEM function
1863 which has a knock on effect of linking in large amounts of (unused)
1864 ASN1 code. Grouping together similar functions and splitting unrelated
1865 functions prevents this.
1868 *) Cleanup of EVP macros.
1871 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
1872 correct _ecb suffix.
1875 *) Add initial OCSP responder support to ocsp application. The
1876 revocation information is handled using the text based index
1877 use by the ca application. The responder can either handle
1878 requests generated internally, supplied in files (for example
1879 via a CGI script) or using an internal minimal server.
1882 *) Add configuration choices to get zlib compression for TLS.
1885 *) Changes to Kerberos SSL for RFC 2712 compliance:
1886 1. Implemented real KerberosWrapper, instead of just using
1887 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
1888 2. Implemented optional authenticator field of KerberosWrapper.
1890 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
1891 and authenticator structs; see crypto/krb5/.
1893 Generalized Kerberos calls to support multiple Kerberos libraries.
1894 [Vern Staats <staatsvr@asc.hpc.mil>,
1895 Jeffrey Altman <jaltman@columbia.edu>
1896 via Richard Levitte]
1898 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
1899 already does with RSA. testdsa.h now has 'priv_key/pub_key'
1900 values for each of the key sizes rather than having just
1901 parameters (and 'speed' generating keys each time).
1904 *) Speed up EVP routines.
1907 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
1908 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
1909 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
1910 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
1912 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
1913 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
1914 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
1917 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
1919 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
1922 *) Added the OS2-EMX target.
1923 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
1925 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
1926 to support NCONF routines in extension code. New function CONF_set_nconf()
1927 to allow functions which take an NCONF to also handle the old LHASH
1928 structure: this means that the old CONF compatible routines can be
1929 retained (in particular wrt extensions) without having to duplicate the
1930 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
1933 *) Enhance the general user interface with mechanisms for inner control
1934 and with possibilities to have yes/no kind of prompts.
1937 *) Change all calls to low level digest routines in the library and
1938 applications to use EVP. Add missing calls to HMAC_cleanup() and
1939 don't assume HMAC_CTX can be copied using memcpy().
1940 [Verdon Walker <VWalker@novell.com>, Steve Henson]
1942 *) Add the possibility to control engines through control names but with
1943 arbitrary arguments instead of just a string.
1944 Change the key loaders to take a UI_METHOD instead of a callback
1945 function pointer. NOTE: this breaks binary compatibility with earlier
1946 versions of OpenSSL [engine].
1947 Adapt the nCipher code for these new conditions and add a card insertion
1951 *) Enhance the general user interface with mechanisms to better support
1952 dialog box interfaces, application-defined prompts, the possibility
1953 to use defaults (for example default passwords from somewhere else)
1954 and interrupts/cancellations.
1957 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
1958 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
1961 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
1962 tidy up some unnecessarily weird code in 'sk_new()').
1963 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
1965 *) Change the key loading routines for ENGINEs to use the same kind
1966 callback (pem_password_cb) as all other routines that need this
1970 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
1971 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
1972 than this minimum value is recommended.
1975 *) New random seeder for OpenVMS, using the system process statistics
1976 that are easily reachable.
1979 *) Windows apparently can't transparently handle global
1980 variables defined in DLLs. Initialisations such as:
1982 const ASN1_ITEM *it = &ASN1_INTEGER_it;
1984 wont compile. This is used by the any applications that need to
1985 declare their own ASN1 modules. This was fixed by adding the option
1986 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
1987 needed for static libraries under Win32.
1990 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
1991 setting of purpose and trust fields. New X509_STORE trust and
1992 purpose functions and tidy up setting in other SSL functions.
1995 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
1996 structure. These are inherited by X509_STORE_CTX when it is
1997 initialised. This allows various defaults to be set in the
1998 X509_STORE structure (such as flags for CRL checking and custom
1999 purpose or trust settings) for functions which only use X509_STORE_CTX
2000 internally such as S/MIME.
2002 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
2003 trust settings if they are not set in X509_STORE. This allows X509_STORE
2004 purposes and trust (in S/MIME for example) to override any set by default.
2006 Add command line options for CRL checking to smime, s_client and s_server
2010 *) Initial CRL based revocation checking. If the CRL checking flag(s)
2011 are set then the CRL is looked up in the X509_STORE structure and
2012 its validity and signature checked, then if the certificate is found
2013 in the CRL the verify fails with a revoked error.
2015 Various new CRL related callbacks added to X509_STORE_CTX structure.
2017 Command line options added to 'verify' application to support this.
2019 This needs some additional work, such as being able to handle multiple
2020 CRLs with different times, extension based lookup (rather than just
2021 by subject name) and ultimately more complete V2 CRL extension
2025 *) Add a general user interface API (crypto/ui/). This is designed
2026 to replace things like des_read_password and friends (backward
2027 compatibility functions using this new API are provided).
2028 The purpose is to remove prompting functions from the DES code
2029 section as well as provide for prompting through dialog boxes in
2030 a window system and the like.
2033 *) Add "ex_data" support to ENGINE so implementations can add state at a
2034 per-structure level rather than having to store it globally.
2037 *) Make it possible for ENGINE structures to be copied when retrieved by
2038 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
2039 This causes the "original" ENGINE structure to act like a template,
2040 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
2041 operational state can be localised to each ENGINE structure, despite the
2042 fact they all share the same "methods". New ENGINE structures returned in
2043 this case have no functional references and the return value is the single
2044 structural reference. This matches the single structural reference returned
2045 by ENGINE_by_id() normally, when it is incremented on the pre-existing
2049 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
2050 needs to match any other type at all we need to manually clear the
2054 *) Changes to the "openssl engine" utility to include;
2055 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
2056 about an ENGINE's available control commands.
2057 - executing control commands from command line arguments using the
2058 '-pre' and '-post' switches. '-post' is only used if '-t' is
2059 specified and the ENGINE is successfully initialised. The syntax for
2060 the individual commands are colon-separated, for example;
2061 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
2064 *) New dynamic control command support for ENGINEs. ENGINEs can now
2065 declare their own commands (numbers), names (strings), descriptions,
2066 and input types for run-time discovery by calling applications. A
2067 subset of these commands are implicitly classed as "executable"
2068 depending on their input type, and only these can be invoked through
2069 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
2070 can be based on user input, config files, etc). The distinction is
2071 that "executable" commands cannot return anything other than a boolean
2072 result and can only support numeric or string input, whereas some
2073 discoverable commands may only be for direct use through
2074 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
2075 pointers, or other custom uses. The "executable" commands are to
2076 support parameterisations of ENGINE behaviour that can be
2077 unambiguously defined by ENGINEs and used consistently across any
2078 OpenSSL-based application. Commands have been added to all the
2079 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
2080 control over shared-library paths without source code alterations.
2083 *) Changed all ENGINE implementations to dynamically allocate their
2084 ENGINEs rather than declaring them statically. Apart from this being
2085 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
2086 this also allows the implementations to compile without using the
2087 internal engine_int.h header.
2090 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
2091 'const' value. Any code that should be able to modify a RAND_METHOD
2092 should already have non-const pointers to it (ie. they should only
2093 modify their own ones).
2096 *) Made a variety of little tweaks to the ENGINE code.
2097 - "atalla" and "ubsec" string definitions were moved from header files
2098 to C code. "nuron" string definitions were placed in variables
2099 rather than hard-coded - allowing parameterisation of these values
2100 later on via ctrl() commands.
2101 - Removed unused "#if 0"'d code.
2102 - Fixed engine list iteration code so it uses ENGINE_free() to release
2103 structural references.
2104 - Constified the RAND_METHOD element of ENGINE structures.
2105 - Constified various get/set functions as appropriate and added
2106 missing functions (including a catch-all ENGINE_cpy that duplicates
2107 all ENGINE values onto a new ENGINE except reference counts/state).
2108 - Removed NULL parameter checks in get/set functions. Setting a method
2109 or function to NULL is a way of cancelling out a previously set
2110 value. Passing a NULL ENGINE parameter is just plain stupid anyway
2111 and doesn't justify the extra error symbols and code.
2112 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
2113 flags from engine_int.h to engine.h.
2114 - Changed prototypes for ENGINE handler functions (init(), finish(),
2115 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
2118 *) Implement binary inversion algorithm for BN_mod_inverse in addition
2119 to the algorithm using long division. The binary algorithm can be
2120 used only if the modulus is odd. On 32-bit systems, it is faster
2121 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
2122 roughly 5-15% for 256-bit moduli), so we use it only for moduli
2123 up to 450 bits. In 64-bit environments, the binary algorithm
2124 appears to be advantageous for much longer moduli; here we use it
2125 for moduli up to 2048 bits.
2128 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
2129 could not support the combine flag in choice fields.
2132 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
2133 extensions from a certificate request to the certificate.
2136 *) Allow multiple 'certopt' and 'nameopt' options to be separated
2137 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
2138 file: this allows the display of the certificate about to be
2139 signed to be customised, to allow certain fields to be included
2140 or excluded and extension details. The old system didn't display
2141 multicharacter strings properly, omitted fields not in the policy
2142 and couldn't display additional details such as extensions.
2145 *) Function EC_POINTs_mul for multiple scalar multiplication
2146 of an arbitrary number of elliptic curve points
2147 \sum scalars[i]*points[i],
2148 optionally including the generator defined for the EC_GROUP:
2149 scalar*generator + \sum scalars[i]*points[i].
2151 EC_POINT_mul is a simple wrapper function for the typical case
2152 that the point list has just one item (besides the optional
2156 *) First EC_METHODs for curves over GF(p):
2158 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
2159 operations and provides various method functions that can also
2160 operate with faster implementations of modular arithmetic.
2162 EC_GFp_mont_method() reuses most functions that are part of
2163 EC_GFp_simple_method, but uses Montgomery arithmetic.
2165 [Bodo Moeller; point addition and point doubling
2166 implementation directly derived from source code provided by
2167 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
2169 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
2170 crypto/ec/ec_lib.c):
2172 Curves are EC_GROUP objects (with an optional group generator)
2173 based on EC_METHODs that are built into the library.
2175 Points are EC_POINT objects based on EC_GROUP objects.
2177 Most of the framework would be able to handle curves over arbitrary
2178 finite fields, but as there are no obvious types for fields other
2179 than GF(p), some functions are limited to that for now.
2182 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
2183 that the file contains a complete HTTP response.
2186 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
2187 change the def and num file printf format specifier from "%-40sXXX"
2188 to "%-39s XXX". The latter will always guarantee a space after the
2189 field while the former will cause them to run together if the field
2190 is 40 of more characters long.
2193 *) Constify the cipher and digest 'method' functions and structures
2194 and modify related functions to take constant EVP_MD and EVP_CIPHER
2198 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
2199 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
2202 *) Modify EVP_Digest*() routines so they now return values. Although the
2203 internal software routines can never fail additional hardware versions
2207 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
2209 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
2210 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
2213 ERR_R_NESTED_ASN1_ERROR
2215 ERR_R_MISSING_ASN1_EOS
2216 were 4 .. 9, conflicting with
2217 ERR_LIB_RSA (= ERR_R_RSA_LIB)
2219 ERR_LIB_PEM (= ERR_R_PEM_LIB).
2220 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
2222 Add new error code 'ERR_R_INTERNAL_ERROR'.
2225 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
2229 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
2230 sets the subject name for a new request or supersedes the
2231 subject name in a given request. Formats that can be parsed are
2232 'CN=Some Name, OU=myOU, C=IT'
2234 'CN=Some Name/OU=myOU/C=IT'.
2236 Add options '-batch' and '-verbose' to 'openssl req'.
2237 [Massimiliano Pala <madwolf@hackmasters.net>]
2239 *) Introduce the possibility to access global variables through
2240 functions on platform were that's the best way to handle exporting
2241 global variables in shared libraries. To enable this functionality,
2242 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
2243 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
2244 is normally done by Configure or something similar).
2246 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
2247 in the source file (foo.c) like this:
2249 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
2250 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
2252 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
2253 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
2255 OPENSSL_DECLARE_GLOBAL(int,foo);
2256 #define foo OPENSSL_GLOBAL_REF(foo)
2257 OPENSSL_DECLARE_GLOBAL(double,bar);
2258 #define bar OPENSSL_GLOBAL_REF(bar)
2260 The #defines are very important, and therefore so is including the
2261 header file everywhere where the defined globals are used.
2263 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
2264 of ASN.1 items, but that structure is a bit different.
2266 The largest change is in util/mkdef.pl which has been enhanced with
2267 better and easier to understand logic to choose which symbols should
2268 go into the Windows .def files as well as a number of fixes and code
2269 cleanup (among others, algorithm keywords are now sorted
2270 lexicographically to avoid constant rewrites).
2273 *) In BN_div() keep a copy of the sign of 'num' before writing the
2274 result to 'rm' because if rm==num the value will be overwritten
2275 and produce the wrong result if 'num' is negative: this caused
2276 problems with BN_mod() and BN_nnmod().
2279 *) Function OCSP_request_verify(). This checks the signature on an
2280 OCSP request and verifies the signer certificate. The signer
2281 certificate is just checked for a generic purpose and OCSP request
2285 *) Add OCSP_check_validity() function to check the validity of OCSP
2286 responses. OCSP responses are prepared in real time and may only
2287 be a few seconds old. Simply checking that the current time lies
2288 between thisUpdate and nextUpdate max reject otherwise valid responses
2289 caused by either OCSP responder or client clock inaccuracy. Instead
2290 we allow thisUpdate and nextUpdate to fall within a certain period of
2291 the current time. The age of the response can also optionally be
2292 checked. Two new options -validity_period and -status_age added to
2296 *) If signature or public key algorithm is unrecognized print out its
2297 OID rather that just UNKNOWN.
2300 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
2301 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
2302 ID to be generated from the issuer certificate alone which can then be
2303 passed to OCSP_id_issuer_cmp().
2306 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
2307 ASN1 modules to export functions returning ASN1_ITEM pointers
2308 instead of the ASN1_ITEM structures themselves. This adds several
2309 new macros which allow the underlying ASN1 function/structure to
2310 be accessed transparently. As a result code should not use ASN1_ITEM
2311 references directly (such as &X509_it) but instead use the relevant
2312 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
2313 use of the new ASN1 code on platforms where exporting structures
2314 is problematical (for example in shared libraries) but exporting
2315 functions returning pointers to structures is not.
2318 *) Add support for overriding the generation of SSL/TLS session IDs.
2319 These callbacks can be registered either in an SSL_CTX or per SSL.
2320 The purpose of this is to allow applications to control, if they wish,
2321 the arbitrary values chosen for use as session IDs, particularly as it
2322 can be useful for session caching in multiple-server environments. A
2323 command-line switch for testing this (and any client code that wishes
2324 to use such a feature) has been added to "s_server".
2325 [Geoff Thorpe, Lutz Jaenicke]
2327 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
2328 of the form '#if defined(...) || defined(...) || ...' and
2329 '#if !defined(...) && !defined(...) && ...'. This also avoids
2330 the growing number of special cases it was previously handling.
2333 *) Make all configuration macros available for application by making
2334 sure they are available in opensslconf.h, by giving them names starting
2335 with "OPENSSL_" to avoid conflicts with other packages and by making
2336 sure e_os2.h will cover all platform-specific cases together with
2338 Additionally, it is now possible to define configuration/platform-
2339 specific names (called "system identities"). In the C code, these
2340 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
2341 macro with the name beginning with "OPENSSL_SYS_", which is determined
2342 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
2346 *) New option -set_serial to 'req' and 'x509' this allows the serial
2347 number to use to be specified on the command line. Previously self
2348 signed certificates were hard coded with serial number 0 and the
2349 CA options of 'x509' had to use a serial number in a file which was
2353 *) New options to 'ca' utility to support V2 CRL entry extensions.
2354 Currently CRL reason, invalidity date and hold instruction are
2355 supported. Add new CRL extensions to V3 code and some new objects.
2358 *) New function EVP_CIPHER_CTX_set_padding() this is used to
2359 disable standard block padding (aka PKCS#5 padding) in the EVP
2360 API, which was previously mandatory. This means that the data is
2361 not padded in any way and so the total length much be a multiple
2362 of the block size, otherwise an error occurs.
2365 *) Initial (incomplete) OCSP SSL support.
2368 *) New function OCSP_parse_url(). This splits up a URL into its host,
2369 port and path components: primarily to parse OCSP URLs. New -url
2370 option to ocsp utility.
2373 *) New nonce behavior. The return value of OCSP_check_nonce() now
2374 reflects the various checks performed. Applications can decide
2375 whether to tolerate certain situations such as an absent nonce
2376 in a response when one was present in a request: the ocsp application
2377 just prints out a warning. New function OCSP_add1_basic_nonce()
2378 this is to allow responders to include a nonce in a response even if
2379 the request is nonce-less.
2382 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
2383 skipped when using openssl x509 multiple times on a single input file,
2384 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
2387 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
2388 set string type: to handle setting ASN1_TIME structures. Fix ca
2389 utility to correctly initialize revocation date of CRLs.
2392 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
2393 the clients preferred ciphersuites and rather use its own preferences.
2394 Should help to work around M$ SGC (Server Gated Cryptography) bug in
2395 Internet Explorer by ensuring unchanged hash method during stepup.
2396 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
2399 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
2400 to aes and add a new 'exist' option to print out symbols that don't
2404 *) Additional options to ocsp utility to allow flags to be set and
2405 additional certificates supplied.
2408 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
2409 OCSP client a number of certificate to only verify the response
2413 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
2414 handle the new API. Currently only ECB, CBC modes supported. Add new
2417 Add TLS AES ciphersuites as described in RFC3268, "Advanced
2418 Encryption Standard (AES) Ciphersuites for Transport Layer
2419 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
2420 not enabled by default and were not part of the "ALL" ciphersuite
2421 alias because they were not yet official; they could be
2422 explicitly requested by specifying the "AESdraft" ciphersuite
2423 group alias. In the final release of OpenSSL 0.9.7, the group
2424 alias is called "AES" and is part of "ALL".)
2425 [Ben Laurie, Steve Henson, Bodo Moeller]
2427 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
2428 request to response.
2431 *) Functions for OCSP responders. OCSP_request_onereq_count(),
2432 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
2433 extract information from a certificate request. OCSP_response_create()
2434 creates a response and optionally adds a basic response structure.
2435 OCSP_basic_add1_status() adds a complete single response to a basic
2436 response and returns the OCSP_SINGLERESP structure just added (to allow
2437 extensions to be included for example). OCSP_basic_add1_cert() adds a
2438 certificate to a basic response and OCSP_basic_sign() signs a basic
2439 response with various flags. New helper functions ASN1_TIME_check()
2440 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
2441 (converts ASN1_TIME to GeneralizedTime).
2444 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
2445 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
2446 structure from a certificate. X509_pubkey_digest() digests the public_key
2447 contents: this is used in various key identifiers.
2450 *) Make sk_sort() tolerate a NULL argument.
2451 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
2453 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
2454 passed by the function are trusted implicitly. If any of them signed the
2455 response then it is assumed to be valid and is not verified.
2458 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
2459 to data. This was previously part of the PKCS7 ASN1 code. This
2460 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
2461 [Steve Henson, reported by Kenneth R. Robinette
2462 <support@securenetterm.com>]
2464 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
2465 routines: without these tracing memory leaks is very painful.
2466 Fix leaks in PKCS12 and PKCS7 routines.
2469 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
2470 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
2471 effectively meant GeneralizedTime would never be used. Now it
2472 is initialised to -1 but X509_time_adj() now has to check the value
2473 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
2474 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
2475 [Steve Henson, reported by Kenneth R. Robinette
2476 <support@securenetterm.com>]
2478 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
2479 result in a zero length in the ASN1_INTEGER structure which was
2480 not consistent with the structure when d2i_ASN1_INTEGER() was used
2481 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
2482 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
2483 where it did not print out a minus for negative ASN1_INTEGER.
2486 *) Add summary printout to ocsp utility. The various functions which
2487 convert status values to strings have been renamed to:
2488 OCSP_response_status_str(), OCSP_cert_status_str() and
2489 OCSP_crl_reason_str() and are no longer static. New options
2490 to verify nonce values and to disable verification. OCSP response
2491 printout format cleaned up.
2494 *) Add additional OCSP certificate checks. These are those specified
2495 in RFC2560. This consists of two separate checks: the CA of the
2496 certificate being checked must either be the OCSP signer certificate
2497 or the issuer of the OCSP signer certificate. In the latter case the
2498 OCSP signer certificate must contain the OCSP signing extended key
2499 usage. This check is performed by attempting to match the OCSP
2500 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
2501 in the OCSP_CERTID structures of the response.
2504 *) Initial OCSP certificate verification added to OCSP_basic_verify()
2505 and related routines. This uses the standard OpenSSL certificate
2506 verify routines to perform initial checks (just CA validity) and
2507 to obtain the certificate chain. Then additional checks will be
2508 performed on the chain. Currently the root CA is checked to see
2509 if it is explicitly trusted for OCSP signing. This is used to set
2510 a root CA as a global signing root: that is any certificate that
2511 chains to that CA is an acceptable OCSP signing certificate.
2514 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
2515 extensions from a separate configuration file.
2516 As when reading extensions from the main configuration file,
2517 the '-extensions ...' option may be used for specifying the
2519 [Massimiliano Pala <madwolf@comune.modena.it>]
2521 *) New OCSP utility. Allows OCSP requests to be generated or
2522 read. The request can be sent to a responder and the output
2523 parsed, outputed or printed in text form. Not complete yet:
2524 still needs to check the OCSP response validity.
2527 *) New subcommands for 'openssl ca':
2528 'openssl ca -status <serial>' prints the status of the cert with
2529 the given serial number (according to the index file).
2530 'openssl ca -updatedb' updates the expiry status of certificates
2532 [Massimiliano Pala <madwolf@comune.modena.it>]
2534 *) New '-newreq-nodes' command option to CA.pl. This is like
2535 '-newreq', but calls 'openssl req' with the '-nodes' option
2536 so that the resulting key is not encrypted.
2537 [Damien Miller <djm@mindrot.org>]
2539 *) New configuration for the GNU Hurd.
2540 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
2542 *) Initial code to implement OCSP basic response verify. This
2543 is currently incomplete. Currently just finds the signer's
2544 certificate and verifies the signature on the response.
2547 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
2548 value of OPENSSLDIR. This is available via the new '-d' option
2549 to 'openssl version', and is also included in 'openssl version -a'.
2552 *) Allowing defining memory allocation callbacks that will be given
2553 file name and line number information in additional arguments
2554 (a const char* and an int). The basic functionality remains, as
2555 well as the original possibility to just replace malloc(),
2556 realloc() and free() by functions that do not know about these
2557 additional arguments. To register and find out the current
2558 settings for extended allocation functions, the following
2559 functions are provided:
2561 CRYPTO_set_mem_ex_functions
2562 CRYPTO_set_locked_mem_ex_functions
2563 CRYPTO_get_mem_ex_functions
2564 CRYPTO_get_locked_mem_ex_functions
2566 These work the same way as CRYPTO_set_mem_functions and friends.
2567 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
2568 extended allocation function is enabled.
2569 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
2570 a conventional allocation function is enabled.
2571 [Richard Levitte, Bodo Moeller]
2573 *) Finish off removing the remaining LHASH function pointer casts.
2574 There should no longer be any prototype-casting required when using
2575 the LHASH abstraction, and any casts that remain are "bugs". See
2576 the callback types and macros at the head of lhash.h for details
2577 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
2580 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
2581 If /dev/[u]random devices are not available or do not return enough
2582 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
2584 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
2585 /etc/entropy will be queried once each in this sequence, quering stops
2586 when enough entropy was collected without querying more sockets.
2589 *) Change the Unix RAND_poll() variant to be able to poll several
2590 random devices, as specified by DEVRANDOM, until a sufficient amount
2591 of data has been collected. We spend at most 10 ms on each file
2592 (select timeout) and read in non-blocking mode. DEVRANDOM now
2593 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
2594 (previously it was just the string "/dev/urandom"), so on typical
2595 platforms the 10 ms delay will never occur.
2596 Also separate out the Unix variant to its own file, rand_unix.c.
2597 For VMS, there's a currently-empty rand_vms.c.
2600 *) Move OCSP client related routines to ocsp_cl.c. These
2601 provide utility functions which an application needing
2602 to issue a request to an OCSP responder and analyse the
2603 response will typically need: as opposed to those which an
2604 OCSP responder itself would need which will be added later.
2606 OCSP_request_sign() signs an OCSP request with an API similar
2607 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
2608 response. OCSP_response_get1_basic() extracts basic response
2609 from response. OCSP_resp_find_status(): finds and extracts status
2610 information from an OCSP_CERTID structure (which will be created
2611 when the request structure is built). These are built from lower
2612 level functions which work on OCSP_SINGLERESP structures but
2613 wont normally be used unless the application wishes to examine
2614 extensions in the OCSP response for example.
2616 Replace nonce routines with a pair of functions.
2617 OCSP_request_add1_nonce() adds a nonce value and optionally
2618 generates a random value. OCSP_check_nonce() checks the
2619 validity of the nonce in an OCSP response.
2622 *) Change function OCSP_request_add() to OCSP_request_add0_id().
2623 This doesn't copy the supplied OCSP_CERTID and avoids the
2624 need to free up the newly created id. Change return type
2625 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
2626 This can then be used to add extensions to the request.
2627 Deleted OCSP_request_new(), since most of its functionality
2628 is now in OCSP_REQUEST_new() (and the case insensitive name
2629 clash) apart from the ability to set the request name which
2630 will be added elsewhere.
2633 *) Update OCSP API. Remove obsolete extensions argument from
2634 various functions. Extensions are now handled using the new
2635 OCSP extension code. New simple OCSP HTTP function which
2636 can be used to send requests and parse the response.
2639 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
2640 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
2641 uses the special reorder version of SET OF to sort the attributes
2642 and reorder them to match the encoded order. This resolves a long
2643 standing problem: a verify on a PKCS7 structure just after signing
2644 it used to fail because the attribute order did not match the
2645 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
2646 it uses the received order. This is necessary to tolerate some broken
2647 software that does not order SET OF. This is handled by encoding
2648 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
2649 to produce the required SET OF.
2652 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
2653 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
2654 files to get correct declarations of the ASN.1 item variables.
2657 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
2658 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
2659 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
2660 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
2661 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
2662 ASN1_ITEM and no wrapper functions.
2665 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
2666 replace the old function pointer based I/O routines. Change most of
2667 the *_d2i_bio() and *_d2i_fp() functions to use these.
2670 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
2671 lines, recognice more "algorithms" that can be deselected, and make
2672 it complain about algorithm deselection that isn't recognised.
2675 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
2676 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
2677 to use new functions. Add NO_ASN1_OLD which can be set to remove
2678 some old style ASN1 functions: this can be used to determine if old
2679 code will still work when these eventually go away.
2682 *) New extension functions for OCSP structures, these follow the
2683 same conventions as certificates and CRLs.
2686 *) New function X509V3_add1_i2d(). This automatically encodes and
2687 adds an extension. Its behaviour can be customised with various
2688 flags to append, replace or delete. Various wrappers added for
2689 certifcates and CRLs.
2692 *) Fix to avoid calling the underlying ASN1 print routine when
2693 an extension cannot be parsed. Correct a typo in the
2694 OCSP_SERVICELOC extension. Tidy up print OCSP format.
2697 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
2698 entries for variables.
2701 *) Add functionality to apps/openssl.c for detecting locking
2702 problems: As the program is single-threaded, all we have
2703 to do is register a locking callback using an array for
2704 storing which locks are currently held by the program.
2707 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
2708 SSL_get_ex_data_X509_STORE_idx(), which is used in
2709 ssl_verify_cert_chain() and thus can be called at any time
2710 during TLS/SSL handshakes so that thread-safety is essential.
2711 Unfortunately, the ex_data design is not at all suited
2712 for multi-threaded use, so it probably should be abolished.
2715 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
2716 [Broadcom, tweaked and integrated by Geoff Thorpe]
2718 *) Move common extension printing code to new function
2719 X509V3_print_extensions(). Reorganise OCSP print routines and
2720 implement some needed OCSP ASN1 functions. Add OCSP extensions.
2723 *) New function X509_signature_print() to remove duplication in some
2727 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
2728 set (this was treated exactly the same as SET OF previously). This
2729 is used to reorder the STACK representing the structure to match the
2730 encoding. This will be used to get round a problem where a PKCS7
2731 structure which was signed could not be verified because the STACK
2732 order did not reflect the encoded order.
2735 *) Reimplement the OCSP ASN1 module using the new code.
2738 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
2739 for its ASN1 operations. The old style function pointers still exist
2740 for now but they will eventually go away.
2743 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
2744 completely replaces the old ASN1 functionality with a table driven
2745 encoder and decoder which interprets an ASN1_ITEM structure describing
2746 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
2747 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
2748 has also been converted to the new form.
2751 *) Change BN_mod_exp_recp so that negative moduli are tolerated
2752 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
2753 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
2754 for negative moduli.
2757 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
2758 of not touching the result's sign bit.
2761 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
2765 *) Changed the LHASH code to use prototypes for callbacks, and created
2766 macros to declare and implement thin (optionally static) functions
2767 that provide type-safety and avoid function pointer casting for the
2768 type-specific callbacks.
2771 *) Added Kerberos Cipher Suites to be used with TLS, as written in
2773 [Veers Staats <staatsvr@asc.hpc.mil>,
2774 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
2776 *) Reformat the FAQ so the different questions and answers can be divided
2777 in sections depending on the subject.
2780 *) Have the zlib compression code load ZLIB.DLL dynamically under
2784 *) New function BN_mod_sqrt for computing square roots modulo a prime
2785 (using the probabilistic Tonelli-Shanks algorithm unless
2786 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
2787 be handled deterministically).
2788 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
2790 *) Make BN_mod_inverse faster by explicitly handling small quotients
2791 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
2792 512 bits], about 30% for larger ones [1024 or 2048 bits].)
2795 *) New function BN_kronecker.
2798 *) Fix BN_gcd so that it works on negative inputs; the result is
2799 positive unless both parameters are zero.
2800 Previously something reasonably close to an infinite loop was
2801 possible because numbers could be growing instead of shrinking
2802 in the implementation of Euclid's algorithm.
2805 *) Fix BN_is_word() and BN_is_one() macros to take into account the
2806 sign of the number in question.
2808 Fix BN_is_word(a,w) to work correctly for w == 0.
2810 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
2811 because its test if the absolute value of 'a' equals 'w'.
2812 Note that BN_abs_is_word does *not* handle w == 0 reliably;
2813 it exists mostly for use in the implementations of BN_is_zero(),
2814 BN_is_one(), and BN_is_word().
2817 *) New function BN_swap.
2820 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
2821 the exponentiation functions are more likely to produce reasonable
2822 results on negative inputs.
2825 *) Change BN_mod_mul so that the result is always non-negative.
2826 Previously, it could be negative if one of the factors was negative;
2827 I don't think anyone really wanted that behaviour.
2830 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
2831 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
2832 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
2833 and add new functions:
2842 BN_mod_lshift1_quick
2846 These functions always generate non-negative results.
2848 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
2849 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
2851 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
2852 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
2853 be reduced modulo m.
2854 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
2857 The following entry accidentily appeared in the CHANGES file
2858 distributed with OpenSSL 0.9.7. The modifications described in
2859 it do *not* apply to OpenSSL 0.9.7.
2861 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
2862 was actually never needed) and in BN_mul(). The removal in BN_mul()
2863 required a small change in bn_mul_part_recursive() and the addition
2864 of the functions bn_cmp_part_words(), bn_sub_part_words() and
2865 bn_add_part_words(), which do the same thing as bn_cmp_words(),
2866 bn_sub_words() and bn_add_words() except they take arrays with
2871 *) In 'openssl passwd', verify passwords read from the terminal
2872 unless the '-salt' option is used (which usually means that
2873 verification would just waste user's time since the resulting
2874 hash is going to be compared with some given password hash)
2875 or the new '-noverify' option is used.
2877 This is an incompatible change, but it does not affect
2878 non-interactive use of 'openssl passwd' (passwords on the command
2879 line, '-stdin' option, '-in ...' option) and thus should not
2883 *) Remove all references to RSAref, since there's no more need for it.
2886 *) Make DSO load along a path given through an environment variable
2887 (SHLIB_PATH) with shl_load().
2890 *) Constify the ENGINE code as a result of BIGNUM constification.
2891 Also constify the RSA code and most things related to it. In a
2892 few places, most notable in the depth of the ASN.1 code, ugly
2893 casts back to non-const were required (to be solved at a later
2897 *) Make it so the openssl application has all engines loaded by default.
2900 *) Constify the BIGNUM routines a little more.
2903 *) Add the following functions:
2905 ENGINE_load_cswift()
2907 ENGINE_load_atalla()
2909 ENGINE_load_builtin_engines()
2911 That way, an application can itself choose if external engines that
2912 are built-in in OpenSSL shall ever be used or not. The benefit is
2913 that applications won't have to be linked with libdl or other dso
2914 libraries unless it's really needed.
2916 Changed 'openssl engine' to load all engines on demand.
2917 Changed the engine header files to avoid the duplication of some
2918 declarations (they differed!).
2921 *) 'openssl engine' can now list capabilities.
2924 *) Better error reporting in 'openssl engine'.
2927 *) Never call load_dh_param(NULL) in s_server.
2930 *) Add engine application. It can currently list engines by name and
2931 identity, and test if they are actually available.
2934 *) Improve RPM specification file by forcing symbolic linking and making
2935 sure the installed documentation is also owned by root.root.
2936 [Damien Miller <djm@mindrot.org>]
2938 *) Give the OpenSSL applications more possibilities to make use of
2939 keys (public as well as private) handled by engines.
2942 *) Add OCSP code that comes from CertCo.
2945 *) Add VMS support for the Rijndael code.
2948 *) Added untested support for Nuron crypto accelerator.
2951 *) Add support for external cryptographic devices. This code was
2952 previously distributed separately as the "engine" branch.
2953 [Geoff Thorpe, Richard Levitte]
2955 *) Rework the filename-translation in the DSO code. It is now possible to
2956 have far greater control over how a "name" is turned into a filename
2957 depending on the operating environment and any oddities about the
2958 different shared library filenames on each system.
2961 *) Support threads on FreeBSD-elf in Configure.
2964 *) Fix for SHA1 assembly problem with MASM: it produces
2965 warnings about corrupt line number information when assembling
2966 with debugging information. This is caused by the overlapping
2968 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
2971 NCONF_get_number() has no error checking at all. As a replacement,
2972 NCONF_get_number_e() is defined (_e for "error checking") and is
2973 promoted strongly. The old NCONF_get_number is kept around for
2974 binary backward compatibility.
2975 Make it possible for methods to load from something other than a BIO,
2976 by providing a function pointer that is given a name instead of a BIO.
2977 For example, this could be used to load configuration data from an
2981 *) Fix for non blocking accept BIOs. Added new I/O special reason
2982 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
2983 with non blocking I/O was not possible because no retry code was
2984 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
2988 *) Added the beginnings of Rijndael support.
2991 *) Fix for bug in DirectoryString mask setting. Add support for
2992 X509_NAME_print_ex() in 'req' and X509_print_ex() function
2993 to allow certificate printing to more controllable, additional
2994 'certopt' option to 'x509' to allow new printing options to be
2998 *) Clean old EAY MD5 hack from e_os.h.
3001 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
3003 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3004 by using the Codenomicon TLS Test Tool (CAN-2004-0079)
3005 [Joe Orton, Steve Henson]
3007 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
3009 *) Fix additional bug revealed by the NISCC test suite:
3011 Stop bug triggering large recursion when presented with
3012 certain ASN.1 tags (CAN-2003-0851)
3015 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
3017 *) Fix various bugs revealed by running the NISCC test suite:
3019 Stop out of bounds reads in the ASN1 code when presented with
3020 invalid tags (CAN-2003-0543 and CAN-2003-0544).
3022 If verify callback ignores invalid public key errors don't try to check
3023 certificate signature with the NULL public key.
3027 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3028 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3032 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3033 extra data after the compression methods not only for TLS 1.0
3034 but also for SSL 3.0 (as required by the specification).
3035 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3037 *) Change X509_certificate_type() to mark the key as exported/exportable
3038 when it's 512 *bits* long, not 512 bytes.
3041 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
3043 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3044 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3045 a protocol version number mismatch like a decryption error
3046 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3049 *) Turn on RSA blinding by default in the default implementation
3050 to avoid a timing attack. Applications that don't want it can call
3051 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3052 They would be ill-advised to do so in most cases.
3053 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3055 *) Change RSA blinding code so that it works when the PRNG is not
3056 seeded (in this case, the secret RSA exponent is abused as
3057 an unpredictable seed -- if it is not unpredictable, there
3058 is no point in blinding anyway). Make RSA blinding thread-safe
3059 by remembering the creator's thread ID in rsa->blinding and
3060 having all other threads use local one-time blinding factors
3061 (this requires more computation than sharing rsa->blinding, but
3062 avoids excessive locking; and if an RSA object is not shared
3063 between threads, blinding will still be very fast).
3066 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
3068 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3069 via timing by performing a MAC computation even if incorrrect
3070 block cipher padding has been found. This is a countermeasure
3071 against active attacks where the attacker has to distinguish
3072 between bad padding and a MAC verification error. (CAN-2003-0078)
3074 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3075 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3076 Martin Vuagnoux (EPFL, Ilion)]
3078 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
3080 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
3081 memory from it's contents. This is done with a counter that will
3082 place alternating values in each byte. This can be used to solve
3083 two issues: 1) the removal of calls to memset() by highly optimizing
3084 compilers, and 2) cleansing with other values than 0, since those can
3085 be read through on certain media, for example a swap space on disk.
3088 *) Bugfix: client side session caching did not work with external caching,
3089 because the session->cipher setting was not restored when reloading
3090 from the external cache. This problem was masked, when
3091 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
3092 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
3095 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
3096 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
3097 [Zeev Lieber <zeev-l@yahoo.com>]
3099 *) Undo an undocumented change introduced in 0.9.6e which caused
3100 repeated calls to OpenSSL_add_all_ciphers() and
3101 OpenSSL_add_all_digests() to be ignored, even after calling
3105 *) Change the default configuration reader to deal with last line not
3106 being properly terminated.
3109 *) Change X509_NAME_cmp() so it applies the special rules on handling
3110 DN values that are of type PrintableString, as well as RDNs of type
3111 emailAddress where the value has the type ia5String.
3112 [stefank@valicert.com via Richard Levitte]
3114 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
3115 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
3116 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
3117 the bitwise-OR of the two for use by the majority of applications
3118 wanting this behaviour, and update the docs. The documented
3119 behaviour and actual behaviour were inconsistent and had been
3120 changing anyway, so this is more a bug-fix than a behavioural
3122 [Geoff Thorpe, diagnosed by Nadav Har'El]
3124 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
3125 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
3128 *) Fix initialization code race conditions in
3129 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
3130 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
3131 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
3132 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
3133 ssl2_get_cipher_by_char(),
3134 ssl3_get_cipher_by_char().
3135 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
3137 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
3138 the cached sessions are flushed, as the remove_cb() might use ex_data
3139 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
3140 (see [openssl.org #212]).
3141 [Geoff Thorpe, Lutz Jaenicke]
3143 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
3144 length, instead of the encoding length to d2i_ASN1_OBJECT.
3147 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
3149 *) [In 0.9.6g-engine release:]
3150 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
3151 [Lynn Gazis <lgazis@rainbow.com>]
3153 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
3155 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
3156 and get fix the header length calculation.
3157 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
3158 Alon Kantor <alonk@checkpoint.com> (and others),
3161 *) Use proper error handling instead of 'assertions' in buffer
3162 overflow checks added in 0.9.6e. This prevents DoS (the
3163 assertions could call abort()).
3164 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
3166 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
3168 *) Add various sanity checks to asn1_get_length() to reject
3169 the ASN1 length bytes if they exceed sizeof(long), will appear
3170 negative or the content length exceeds the length of the
3172 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3174 *) Fix cipher selection routines: ciphers without encryption had no flags
3175 for the cipher strength set and where therefore not handled correctly
3176 by the selection routines (PR #130).
3179 *) Fix EVP_dsa_sha macro.
3183 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
3184 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
3185 that was added in OpenSSL 0.9.6d.
3187 As the countermeasure turned out to be incompatible with some
3188 broken SSL implementations, the new option is part of SSL_OP_ALL.
3189 SSL_OP_ALL is usually employed when compatibility with weird SSL
3190 implementations is desired (e.g. '-bugs' option to 's_client' and
3191 's_server'), so the new option is automatically set in many
3195 *) Changes in security patch:
3197 Changes marked "(CHATS)" were sponsored by the Defense Advanced
3198 Research Projects Agency (DARPA) and Air Force Research Laboratory,
3199 Air Force Materiel Command, USAF, under agreement number
3202 *) Add various sanity checks to asn1_get_length() to reject
3203 the ASN1 length bytes if they exceed sizeof(long), will appear
3204 negative or the content length exceeds the length of the
3205 supplied buffer. (CAN-2002-0659)
3206 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3208 *) Assertions for various potential buffer overflows, not known to
3210 [Ben Laurie (CHATS)]
3212 *) Various temporary buffers to hold ASCII versions of integers were
3213 too small for 64 bit platforms. (CAN-2002-0655)
3214 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
3216 *) Remote buffer overflow in SSL3 protocol - an attacker could
3217 supply an oversized session ID to a client. (CAN-2002-0656)
3218 [Ben Laurie (CHATS)]
3220 *) Remote buffer overflow in SSL2 protocol - an attacker could
3221 supply an oversized client master key. (CAN-2002-0656)
3222 [Ben Laurie (CHATS)]
3224 Changes between 0.9.6c and 0.9.6d [9 May 2002]
3226 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
3227 encoded as NULL) with id-dsa-with-sha1.
3228 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
3230 *) Check various X509_...() return values in apps/req.c.
3231 [Nils Larsch <nla@trustcenter.de>]
3233 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
3234 an end-of-file condition would erronously be flagged, when the CRLF
3235 was just at the end of a processed block. The bug was discovered when
3236 processing data through a buffering memory BIO handing the data to a
3237 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
3238 <ptsekov@syntrex.com> and Nedelcho Stanev.
3241 *) Implement a countermeasure against a vulnerability recently found
3242 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
3243 before application data chunks to avoid the use of known IVs
3244 with data potentially chosen by the attacker.
3247 *) Fix length checks in ssl3_get_client_hello().
3250 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
3251 to prevent ssl3_read_internal() from incorrectly assuming that
3252 ssl3_read_bytes() found application data while handshake
3253 processing was enabled when in fact s->s3->in_read_app_data was
3254 merely automatically cleared during the initial handshake.
3255 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
3257 *) Fix object definitions for Private and Enterprise: they were not
3258 recognized in their shortname (=lowercase) representation. Extend
3259 obj_dat.pl to issue an error when using undefined keywords instead
3260 of silently ignoring the problem (Svenning Sorensen
3261 <sss@sss.dnsalias.net>).
3264 *) Fix DH_generate_parameters() so that it works for 'non-standard'
3265 generators, i.e. generators other than 2 and 5. (Previously, the
3266 code did not properly initialise the 'add' and 'rem' values to
3267 BN_generate_prime().)
3269 In the new general case, we do not insist that 'generator' is
3270 actually a primitive root: This requirement is rather pointless;
3271 a generator of the order-q subgroup is just as good, if not
3275 *) Map new X509 verification errors to alerts. Discovered and submitted by
3276 Tom Wu <tom@arcot.com>.
3279 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
3280 returning non-zero before the data has been completely received
3281 when using non-blocking I/O.
3282 [Bodo Moeller; problem pointed out by John Hughes]
3284 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
3285 [Ben Laurie, Lutz Jaenicke]
3287 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
3288 Yoram Zahavi <YoramZ@gilian.com>).
3291 *) Add information about CygWin 1.3 and on, and preserve proper
3292 configuration for the versions before that.
3293 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
3295 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
3296 check whether we deal with a copy of a session and do not delete from
3297 the cache in this case. Problem reported by "Izhar Shoshani Levi"
3298 <izhar@checkpoint.com>.
3301 *) Do not store session data into the internal session cache, if it
3302 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
3303 flag is set). Proposed by Aslam <aslam@funk.com>.
3306 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
3310 *) [In 0.9.6d-engine release:]
3311 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3312 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3314 *) Add the configuration target linux-s390x.
3315 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
3317 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
3318 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
3319 variable as an indication that a ClientHello message has been
3320 received. As the flag value will be lost between multiple
3321 invocations of ssl3_accept when using non-blocking I/O, the
3322 function may not be aware that a handshake has actually taken
3323 place, thus preventing a new session from being added to the
3326 To avoid this problem, we now set s->new_session to 2 instead of
3327 using a local variable.
3328 [Lutz Jaenicke, Bodo Moeller]
3330 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
3331 if the SSL_R_LENGTH_MISMATCH error is detected.
3332 [Geoff Thorpe, Bodo Moeller]
3334 *) New 'shared_ldflag' column in Configure platform table.
3337 *) Fix EVP_CIPHER_mode macro.
3338 ["Dan S. Camper" <dan@bti.net>]
3340 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
3341 type, we must throw them away by setting rr->length to 0.
3342 [D P Chang <dpc@qualys.com>]
3344 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
3346 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
3347 <Dominikus.Scherkl@biodata.com>. (The previous implementation
3348 worked incorrectly for those cases where range = 10..._2 and
3349 3*range is two bits longer than range.)
3352 *) Only add signing time to PKCS7 structures if it is not already
3356 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
3357 OBJ_ld_ce should be OBJ_id_ce.
3358 Also some ip-pda OIDs in crypto/objects/objects.txt were
3359 incorrect (cf. RFC 3039).
3360 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
3362 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
3363 returns early because it has nothing to do.
3364 [Andy Schneider <andy.schneider@bjss.co.uk>]
3366 *) [In 0.9.6c-engine release:]
3367 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
3368 [Andy Schneider <andy.schneider@bjss.co.uk>]
3370 *) [In 0.9.6c-engine release:]
3371 Add support for Cryptographic Appliance's keyserver technology.
3372 (Use engine 'keyclient')
3373 [Cryptographic Appliances and Geoff Thorpe]
3375 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
3376 is called via tools/c89.sh because arguments have to be
3377 rearranged (all '-L' options must appear before the first object
3379 [Richard Shapiro <rshapiro@abinitio.com>]
3381 *) [In 0.9.6c-engine release:]
3382 Add support for Broadcom crypto accelerator cards, backported
3384 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
3386 *) [In 0.9.6c-engine release:]
3387 Add support for SureWare crypto accelerator cards from
3388 Baltimore Technologies. (Use engine 'sureware')
3389 [Baltimore Technologies and Mark Cox]
3391 *) [In 0.9.6c-engine release:]
3392 Add support for crypto accelerator cards from Accelerated
3393 Encryption Processing, www.aep.ie. (Use engine 'aep')
3394 [AEP Inc. and Mark Cox]
3396 *) Add a configuration entry for gcc on UnixWare.
3397 [Gary Benson <gbenson@redhat.com>]
3399 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
3400 messages are stored in a single piece (fixed-length part and
3401 variable-length part combined) and fix various bugs found on the way.
3404 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
3405 instead. BIO_gethostbyname() does not know what timeouts are
3406 appropriate, so entries would stay in cache even when they have
3408 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
3410 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
3411 faced with a pathologically small ClientHello fragment that does
3412 not contain client_version: Instead of aborting with an error,
3413 simply choose the highest available protocol version (i.e.,
3414 TLS 1.0 unless it is disabled). In practice, ClientHello
3415 messages are never sent like this, but this change gives us
3416 strictly correct behaviour at least for TLS.
3419 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
3420 never resets s->method to s->ctx->method when called from within
3421 one of the SSL handshake functions.
3422 [Bodo Moeller; problem pointed out by Niko Baric]
3424 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
3425 (sent using the client's version number) if client_version is
3426 smaller than the protocol version in use. Also change
3427 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
3428 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
3429 the client will at least see that alert.
3432 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
3436 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
3437 client receives HelloRequest while in a handshake.
3438 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
3440 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
3441 should end in 'break', not 'goto end' which circuments various
3442 cleanups done in state SSL_ST_OK. But session related stuff
3443 must be disabled for SSL_ST_OK in the case that we just sent a
3446 Also avoid some overhead by not calling ssl_init_wbio_buffer()
3447 before just sending a HelloRequest.
3448 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
3450 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
3451 reveal whether illegal block cipher padding was found or a MAC
3452 verification error occured. (Neither SSLerr() codes nor alerts
3453 are directly visible to potential attackers, but the information
3454 may leak via logfiles.)
3456 Similar changes are not required for the SSL 2.0 implementation
3457 because the number of padding bytes is sent in clear for SSL 2.0,
3458 and the extra bytes are just ignored. However ssl/s2_pkt.c
3459 failed to verify that the purported number of padding bytes is in
3463 *) Add OpenUNIX-8 support including shared libraries
3464 (Boyd Lynn Gerber <gerberb@zenez.com>).
3467 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
3468 'wristwatch attack' using huge encoding parameters (cf.
3469 James H. Manger's CRYPTO 2001 paper). Note that the
3470 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
3471 encoding parameters and hence was not vulnerable.
3474 *) BN_sqr() bug fix.
3475 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
3477 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
3478 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
3479 followed by modular reduction.
3480 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
3482 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
3483 equivalent based on BN_pseudo_rand() instead of BN_rand().
3486 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
3487 This function was broken, as the check for a new client hello message
3488 to handle SGC did not allow these large messages.
3489 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
3492 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
3495 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
3496 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
3499 *) Rework the configuration and shared library support for Tru64 Unix.
3500 The configuration part makes use of modern compiler features and
3501 still retains old compiler behavior for those that run older versions
3502 of the OS. The shared library support part includes a variant that
3503 uses the RPATH feature, and is available through the special
3504 configuration target "alpha-cc-rpath", which will never be selected
3506 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
3508 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
3509 with the same message size as in ssl3_get_certificate_request().
3510 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
3511 messages might inadvertently be reject as too long.
3512 [Petr Lampa <lampa@fee.vutbr.cz>]
3514 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
3517 *) Modified SSL library such that the verify_callback that has been set
3518 specificly for an SSL object with SSL_set_verify() is actually being
3519 used. Before the change, a verify_callback set with this function was
3520 ignored and the verify_callback() set in the SSL_CTX at the time of
3521 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
3522 to allow the necessary settings.
3525 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
3526 explicitly to NULL, as at least on Solaris 8 this seems not always to be
3527 done automatically (in contradiction to the requirements of the C
3528 standard). This made problems when used from OpenSSH.
3531 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
3532 dh->length and always used
3534 BN_rand_range(priv_key, dh->p).
3536 BN_rand_range() is not necessary for Diffie-Hellman, and this
3537 specific range makes Diffie-Hellman unnecessarily inefficient if
3538 dh->length (recommended exponent length) is much smaller than the
3539 length of dh->p. We could use BN_rand_range() if the order of
3540 the subgroup was stored in the DH structure, but we only have
3545 BN_rand(priv_key, l, ...)
3547 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
3553 RSA_eay_public_encrypt
3554 RSA_eay_private_decrypt
3555 RSA_eay_private_encrypt (signing)
3556 RSA_eay_public_decrypt (signature verification)
3558 (default implementations for RSA_public_encrypt,
3559 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
3560 always reject numbers >= n.
3563 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
3564 to synchronize access to 'locking_thread'. This is necessary on
3565 systems where access to 'locking_thread' (an 'unsigned long'
3566 variable) is not atomic.
3569 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
3570 *before* setting the 'crypto_lock_rand' flag. The previous code had
3571 a race condition if 0 is a valid thread ID.
3572 [Travis Vitek <vitek@roguewave.com>]
3574 *) Add support for shared libraries under Irix.
3575 [Albert Chin-A-Young <china@thewrittenword.com>]
3577 *) Add configuration option to build on Linux on both big-endian and
3579 [Ralf Baechle <ralf@uni-koblenz.de>]
3581 *) Add the possibility to create shared libraries on HP-UX.
3584 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
3586 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
3587 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
3588 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
3589 PRNG state recovery was possible based on the output of
3590 one PRNG request appropriately sized to gain knowledge on
3591 'md' followed by enough consecutive 1-byte PRNG requests
3592 to traverse all of 'state'.
3594 1. When updating 'md_local' (the current thread's copy of 'md')
3595 during PRNG output generation, hash all of the previous
3596 'md_local' value, not just the half used for PRNG output.
3598 2. Make the number of bytes from 'state' included into the hash
3599 independent from the number of PRNG bytes requested.
3601 The first measure alone would be sufficient to avoid
3602 Markku-Juhani's attack. (Actually it had never occurred
3603 to me that the half of 'md_local' used for chaining was the
3604 half from which PRNG output bytes were taken -- I had always
3605 assumed that the secret half would be used.) The second
3606 measure makes sure that additional data from 'state' is never
3607 mixed into 'md_local' in small portions; this heuristically
3608 further strengthens the PRNG.
3611 *) Fix crypto/bn/asm/mips3.s.
3614 *) When only the key is given to "enc", the IV is undefined. Print out
3615 an error message in this case.
3618 *) Handle special case when X509_NAME is empty in X509 printing routines.
3621 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
3622 positive and less than q.
3625 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
3626 used: it isn't thread safe and the add_lock_callback should handle
3628 [Paul Rose <Paul.Rose@bridge.com>]
3630 *) Verify that incoming data obeys the block size in
3631 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
3635 [Ulf Möller, Bodo Möller]
3637 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
3638 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
3639 when fixing the server behaviour for backwards-compatible 'client
3640 hello' messages. (Note that the attack is impractical against
3641 SSL 3.0 and TLS 1.0 anyway because length and version checking
3642 means that the probability of guessing a valid ciphertext is
3643 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
3646 Before 0.9.5, the countermeasure (hide the error by generating a
3647 random 'decryption result') did not work properly because
3648 ERR_clear_error() was missing, meaning that SSL_get_error() would
3649 detect the supposedly ignored error.
3651 Both problems are now fixed.
3654 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
3655 (previously it was 1024).
3658 *) Fix for compatibility mode trust settings: ignore trust settings
3659 unless some valid trust or reject settings are present.
3662 *) Fix for blowfish EVP: its a variable length cipher.
3665 *) Fix various bugs related to DSA S/MIME verification. Handle missing
3666 parameters in DSA public key structures and return an error in the
3667 DSA routines if parameters are absent.
3670 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
3671 in the current directory if neither $RANDFILE nor $HOME was set.
3672 RAND_file_name() in 0.9.6a returned NULL in this case. This has
3673 caused some confusion to Windows users who haven't defined $HOME.
3674 Thus RAND_file_name() is changed again: e_os.h can define a
3675 DEFAULT_HOME, which will be used if $HOME is not set.
3676 For Windows, we use "C:"; on other platforms, we still require
3677 environment variables.
3679 *) Move 'if (!initialized) RAND_poll()' into regions protected by
3680 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
3681 having multiple threads call RAND_poll() concurrently.
3684 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
3685 combination of a flag and a thread ID variable.
3686 Otherwise while one thread is in ssleay_rand_bytes (which sets the
3687 flag), *other* threads can enter ssleay_add_bytes without obeying
3688 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
3689 that they do not hold after the first thread unsets add_do_not_lock).
3692 *) Change bctest again: '-x' expressions are not available in all
3696 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
3698 *) Fix a couple of memory leaks in PKCS7_dataDecode()
3699 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
3701 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
3702 the default extension for executables, if any. Also, make the perl
3703 scripts that use symlink() to test if it really exists and use "cp"
3704 if it doesn't. All this made OpenSSL compilable and installable in
3708 *) Fix for asn1_GetSequence() for indefinite length constructed data.
3709 If SEQUENCE is length is indefinite just set c->slen to the total
3710 amount of data available.
3711 [Steve Henson, reported by shige@FreeBSD.org]
3712 [This change does not apply to 0.9.7.]
3714 *) Change bctest to avoid here-documents inside command substitution
3715 (workaround for FreeBSD /bin/sh bug).
3716 For compatibility with Ultrix, avoid shell functions (introduced
3717 in the bctest version that searches along $PATH).
3720 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
3721 with des_encrypt() defined on some operating systems, like Solaris
3725 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
3726 On the Importance of Eliminating Errors in Cryptographic
3727 Computations, J. Cryptology 14 (2001) 2, 101-119,
3728 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
3731 *) MIPS assembler BIGNUM division bug fix.
3734 *) Disabled incorrect Alpha assembler code.
3737 *) Fix PKCS#7 decode routines so they correctly update the length
3738 after reading an EOC for the EXPLICIT tag.
3740 [This change does not apply to 0.9.7.]
3742 *) Fix bug in PKCS#12 key generation routines. This was triggered
3743 if a 3DES key was generated with a 0 initial byte. Include
3744 PKCS12_BROKEN_KEYGEN compilation option to retain the old
3745 (but broken) behaviour.
3748 *) Enhance bctest to search for a working bc along $PATH and print
3750 [Tim Rice <tim@multitalents.net> via Richard Levitte]
3752 *) Fix memory leaks in err.c: free err_data string if necessary;
3753 don't write to the wrong index in ERR_set_error_data.
3756 *) Implement ssl23_peek (analogous to ssl23_read), which previously
3760 *) Replace rdtsc with _emit statements for VC++ version 5.
3761 [Jeremy Cooper <jeremy@baymoo.org>]
3763 *) Make it possible to reuse SSLv2 sessions.
3766 *) In copy_email() check for >= 0 as a return value for
3767 X509_NAME_get_index_by_NID() since 0 is a valid index.
3768 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
3770 *) Avoid coredump with unsupported or invalid public keys by checking if
3771 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
3772 PKCS7_verify() fails with non detached data.
3775 *) Don't use getenv in library functions when run as setuid/setgid.
3776 New function OPENSSL_issetugid().
3779 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
3780 due to incorrect handling of multi-threading:
3782 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
3784 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
3786 3. Count how many times MemCheck_off() has been called so that
3787 nested use can be treated correctly. This also avoids
3788 inband-signalling in the previous code (which relied on the
3789 assumption that thread ID 0 is impossible).
3792 *) Add "-rand" option also to s_client and s_server.
3795 *) Fix CPU detection on Irix 6.x.
3796 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
3797 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
3799 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
3802 [This change does not apply to 0.9.7.]
3804 *) Use the cached encoding of an X509_NAME structure rather than
3805 copying it. This is apparently the reason for the libsafe "errors"
3806 but the code is actually correct.
3809 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
3810 Bleichenbacher's DSA attack.
3811 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
3812 to be set and top=0 forces the highest bit to be set; top=-1 is new
3813 and leaves the highest bit random.
3814 [Ulf Moeller, Bodo Moeller]
3816 *) In the NCONF_...-based implementations for CONF_... queries
3817 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
3818 a temporary CONF structure with the data component set to NULL
3819 (which gives segmentation faults in lh_retrieve).
3820 Instead, use NULL for the CONF pointer in CONF_get_string and
3821 CONF_get_number (which may use environment variables) and directly
3822 return NULL from CONF_get_section.
3825 *) Fix potential buffer overrun for EBCDIC.
3828 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
3829 keyUsage if basicConstraints absent for a CA.
3832 *) Make SMIME_write_PKCS7() write mail header values with a format that
3833 is more generally accepted (no spaces before the semicolon), since
3834 some programs can't parse those values properly otherwise. Also make
3835 sure BIO's that break lines after each write do not create invalid
3839 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
3840 macros previously used would not encode an empty SEQUENCE OF
3841 and break the signature.
3843 [This change does not apply to 0.9.7.]
3845 *) Zero the premaster secret after deriving the master secret in
3849 *) Add some EVP_add_digest_alias registrations (as found in
3850 OpenSSL_add_all_digests()) to SSL_library_init()
3851 aka OpenSSL_add_ssl_algorithms(). This provides improved
3852 compatibility with peers using X.509 certificates
3853 with unconventional AlgorithmIdentifier OIDs.
3856 *) Fix for Irix with NO_ASM.
3857 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
3859 *) ./config script fixes.
3860 [Ulf Moeller, Richard Levitte]
3862 *) Fix 'openssl passwd -1'.
3865 *) Change PKCS12_key_gen_asc() so it can cope with non null
3866 terminated strings whose length is passed in the passlen
3867 parameter, for example from PEM callbacks. This was done
3868 by adding an extra length parameter to asc2uni().
3869 [Steve Henson, reported by <oddissey@samsung.co.kr>]
3871 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
3872 call failed, free the DSA structure.
3875 *) Fix to uni2asc() to cope with zero length Unicode strings.
3876 These are present in some PKCS#12 files.
3879 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
3880 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
3881 when writing a 32767 byte record.
3882 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
3884 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
3885 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
3887 (RSA objects have a reference count access to which is protected
3888 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
3889 so they are meant to be shared between threads.)
3890 [Bodo Moeller, Geoff Thorpe; original patch submitted by
3891 "Reddie, Steven" <Steven.Reddie@ca.com>]
3893 *) Fix a deadlock in CRYPTO_mem_leaks().
3896 *) Use better test patterns in bntest.
3899 *) rand_win.c fix for Borland C.
3902 *) BN_rshift bugfix for n == 0.
3905 *) Add a 'bctest' script that checks for some known 'bc' bugs
3906 so that 'make test' does not abort just because 'bc' is broken.
3909 *) Store verify_result within SSL_SESSION also for client side to
3910 avoid potential security hole. (Re-used sessions on the client side
3911 always resulted in verify_result==X509_V_OK, not using the original
3912 result of the server certificate verification.)
3915 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
3916 SSL3_RT_APPLICATION_DATA, return 0.
3917 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
3921 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
3922 releases, have been re-implemented by renaming the previous
3923 implementations of ssl2_read and ssl3_read to ssl2_read_internal
3924 and ssl3_read_internal, respectively, and adding 'peek' parameters
3925 to them. The new ssl[23]_{read,peek} functions are calls to
3926 ssl[23]_read_internal with the 'peek' flag set appropriately.
3927 A 'peek' parameter has also been added to ssl3_read_bytes, which
3928 does the actual work for ssl3_read_internal.
3931 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
3932 the method-specific "init()" handler. Also clean up ex_data after
3933 calling the method-specific "finish()" handler. Previously, this was
3934 happening the other way round.
3937 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
3938 The previous value, 12, was not always sufficient for BN_mod_exp().
3941 *) Make sure that shared libraries get the internal name engine with
3942 the full version number and not just 0. This should mark the
3943 shared libraries as not backward compatible. Of course, this should
3944 be changed again when we can guarantee backward binary compatibility.
3947 *) Fix typo in get_cert_by_subject() in by_dir.c
3948 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
3950 *) Rework the system to generate shared libraries:
3952 - Make note of the expected extension for the shared libraries and
3953 if there is a need for symbolic links from for example libcrypto.so.0
3954 to libcrypto.so.0.9.7. There is extended info in Configure for
3957 - Make as few rebuilds of the shared libraries as possible.
3959 - Still avoid linking the OpenSSL programs with the shared libraries.
3961 - When installing, install the shared libraries separately from the
3965 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
3967 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
3968 and not in SSL_clear because the latter is also used by the
3969 accept/connect functions; previously, the settings made by
3970 SSL_set_read_ahead would be lost during the handshake.
3971 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
3973 *) Correct util/mkdef.pl to be selective about disabled algorithms.
3974 Previously, it would create entries for disableed algorithms no
3978 *) Added several new manual pages for SSL_* function.
3981 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
3983 *) In ssl23_get_client_hello, generate an error message when faced
3984 with an initial SSL 3.0/TLS record that is too small to contain the
3985 first two bytes of the ClientHello message, i.e. client_version.
3986 (Note that this is a pathologic case that probably has never happened
3987 in real life.) The previous approach was to use the version number
3988 from the record header as a substitute; but our protocol choice
3989 should not depend on that one because it is not authenticated
3990 by the Finished messages.
3993 *) More robust randomness gathering functions for Windows.
3994 [Jeffrey Altman <jaltman@columbia.edu>]
3996 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
3997 not set then we don't setup the error code for issuer check errors
3998 to avoid possibly overwriting other errors which the callback does
3999 handle. If an application does set the flag then we assume it knows
4000 what it is doing and can handle the new informational codes
4004 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
4005 a general "ANY" type, as such it should be able to decode anything
4006 including tagged types. However it didn't check the class so it would
4007 wrongly interpret tagged types in the same way as their universal
4008 counterpart and unknown types were just rejected. Changed so that the
4009 tagged and unknown types are handled in the same way as a SEQUENCE:
4010 that is the encoding is stored intact. There is also a new type
4011 "V_ASN1_OTHER" which is used when the class is not universal, in this
4012 case we have no idea what the actual type is so we just lump them all
4016 *) On VMS, stdout may very well lead to a file that is written to
4017 in a record-oriented fashion. That means that every write() will
4018 write a separate record, which will be read separately by the
4019 programs trying to read from it. This can be very confusing.
4021 The solution is to put a BIO filter in the way that will buffer
4022 text until a linefeed is reached, and then write everything a
4023 line at a time, so every record written will be an actual line,
4024 not chunks of lines and not (usually doesn't happen, but I've
4025 seen it once) several lines in one record. BIO_f_linebuffer() is
4028 Currently, it's a VMS-only method, because that's where it has
4029 been tested well enough.
4032 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
4033 it can return incorrect results.
4034 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
4035 but it was in 0.9.6-beta[12].)
4038 *) Disable the check for content being present when verifying detached
4039 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
4040 include zero length content when signing messages.
4043 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
4044 BIO_ctrl (for BIO pairs).
4047 *) Add DSO method for VMS.
4050 *) Bug fix: Montgomery multiplication could produce results with the
4054 *) Add RPM specification openssl.spec and modify it to build three
4055 packages. The default package contains applications, application
4056 documentation and run-time libraries. The devel package contains
4057 include files, static libraries and function documentation. The
4058 doc package contains the contents of the doc directory. The original
4059 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
4062 *) Add a large number of documentation files for many SSL routines.
4063 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
4065 *) Add a configuration entry for Sony News 4.
4066 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
4068 *) Don't set the two most significant bits to one when generating a
4069 random number < q in the DSA library.
4072 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
4073 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
4074 the underlying transport is blocking) if a handshake took place.
4075 (The default behaviour is needed by applications such as s_client
4076 and s_server that use select() to determine when to use SSL_read;
4077 but for applications that know in advance when to expect data, it
4078 just makes things more complicated.)
4081 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
4085 *) Add a few more EBCDIC conditionals that make `req' and `x509'
4086 work better on such systems.
4087 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
4089 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
4090 Update PKCS12_parse() so it copies the friendlyName and the
4091 keyid to the certificates aux info.
4094 *) Fix bug in PKCS7_verify() which caused an infinite loop
4095 if there was more than one signature.
4096 [Sven Uszpelkat <su@celocom.de>]
4098 *) Major change in util/mkdef.pl to include extra information
4099 about each symbol, as well as presentig variables as well
4100 as functions. This change means that there's n more need
4101 to rebuild the .num files when some algorithms are excluded.
4104 *) Allow the verify time to be set by an application,
4105 rather than always using the current time.
4108 *) Phase 2 verify code reorganisation. The certificate
4109 verify code now looks up an issuer certificate by a
4110 number of criteria: subject name, authority key id
4111 and key usage. It also verifies self signed certificates
4112 by the same criteria. The main comparison function is
4113 X509_check_issued() which performs these checks.
4115 Lot of changes were necessary in order to support this
4116 without completely rewriting the lookup code.
4118 Authority and subject key identifier are now cached.
4120 The LHASH 'certs' is X509_STORE has now been replaced
4121 by a STACK_OF(X509_OBJECT). This is mainly because an
4122 LHASH can't store or retrieve multiple objects with
4123 the same hash value.
4125 As a result various functions (which were all internal
4126 use only) have changed to handle the new X509_STORE
4127 structure. This will break anything that messed round
4128 with X509_STORE internally.
4130 The functions X509_STORE_add_cert() now checks for an
4131 exact match, rather than just subject name.
4133 The X509_STORE API doesn't directly support the retrieval
4134 of multiple certificates matching a given criteria, however
4135 this can be worked round by performing a lookup first
4136 (which will fill the cache with candidate certificates)
4137 and then examining the cache for matches. This is probably
4138 the best we can do without throwing out X509_LOOKUP
4139 entirely (maybe later...).
4141 The X509_VERIFY_CTX structure has been enhanced considerably.
4143 All certificate lookup operations now go via a get_issuer()
4144 callback. Although this currently uses an X509_STORE it
4145 can be replaced by custom lookups. This is a simple way
4146 to bypass the X509_STORE hackery necessary to make this
4147 work and makes it possible to use more efficient techniques
4148 in future. A very simple version which uses a simple
4149 STACK for its trusted certificate store is also provided
4150 using X509_STORE_CTX_trusted_stack().
4152 The verify_cb() and verify() callbacks now have equivalents
4153 in the X509_STORE_CTX structure.
4155 X509_STORE_CTX also has a 'flags' field which can be used
4156 to customise the verify behaviour.
4159 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
4160 excludes S/MIME capabilities.
4163 *) When a certificate request is read in keep a copy of the
4164 original encoding of the signed data and use it when outputing
4165 again. Signatures then use the original encoding rather than
4166 a decoded, encoded version which may cause problems if the
4167 request is improperly encoded.
4170 *) For consistency with other BIO_puts implementations, call
4171 buffer_write(b, ...) directly in buffer_puts instead of calling
4174 In BIO_puts, increment b->num_write as in BIO_write.
4175 [Peter.Sylvester@EdelWeb.fr]
4177 *) Fix BN_mul_word for the case where the word is 0. (We have to use
4178 BN_zero, we may not return a BIGNUM with an array consisting of
4182 *) Avoid calling abort() from within the library when problems are
4183 detected, except if preprocessor symbols have been defined
4184 (such as REF_CHECK, BN_DEBUG etc.).
4187 *) New openssl application 'rsautl'. This utility can be
4188 used for low level RSA operations. DER public key
4189 BIO/fp routines also added.
4192 *) New Configure entry and patches for compiling on QNX 4.
4193 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
4195 *) A demo state-machine implementation was sponsored by
4196 Nuron (http://www.nuron.com/) and is now available in
4197 demos/state_machine.
4200 *) New options added to the 'dgst' utility for signature
4201 generation and verification.
4204 *) Unrecognized PKCS#7 content types are now handled via a
4205 catch all ASN1_TYPE structure. This allows unsupported
4206 types to be stored as a "blob" and an application can
4207 encode and decode it manually.
4210 *) Fix various signed/unsigned issues to make a_strex.c
4212 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
4214 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
4215 length if passed a buffer. ASN1_INTEGER_to_BN failed
4216 if passed a NULL BN and its argument was negative.
4217 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
4219 *) Modification to PKCS#7 encoding routines to output definite
4220 length encoding. Since currently the whole structures are in
4221 memory there's not real point in using indefinite length
4222 constructed encoding. However if OpenSSL is compiled with
4223 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
4226 *) Added BIO_vprintf() and BIO_vsnprintf().
4229 *) Added more prefixes to parse for in the the strings written
4230 through a logging bio, to cover all the levels that are available
4231 through syslog. The prefixes are now:
4233 PANIC, EMERG, EMR => LOG_EMERG
4234 ALERT, ALR => LOG_ALERT
4235 CRIT, CRI => LOG_CRIT
4236 ERROR, ERR => LOG_ERR
4237 WARNING, WARN, WAR => LOG_WARNING
4238 NOTICE, NOTE, NOT => LOG_NOTICE
4239 INFO, INF => LOG_INFO
4240 DEBUG, DBG => LOG_DEBUG
4242 and as before, if none of those prefixes are present at the
4243 beginning of the string, LOG_ERR is chosen.
4245 On Win32, the LOG_* levels are mapped according to this:
4247 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
4248 LOG_WARNING => EVENTLOG_WARNING_TYPE
4249 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
4253 *) Made it possible to reconfigure with just the configuration
4254 argument "reconf" or "reconfigure". The command line arguments
4255 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
4256 and are retrieved from there when reconfiguring.
4260 [Assar Westerlund <assar@sics.se>, Richard Levitte]
4262 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
4265 *) The obj_dat.pl script was messing up the sorting of object
4266 names. The reason was that it compared the quoted version
4267 of strings as a result "OCSP" > "OCSP Signing" because
4268 " > SPACE. Changed script to store unquoted versions of
4269 names and add quotes on output. It was also omitting some
4270 names from the lookup table if they were given a default
4271 value (that is if SN is missing it is given the same
4272 value as LN and vice versa), these are now added on the
4273 grounds that if an object has a name we should be able to
4274 look it up. Finally added warning output when duplicate
4275 short or long names are found.
4278 *) Changes needed for Tandem NSK.
4279 [Scott Uroff <scott@xypro.com>]
4281 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
4282 RSA_padding_check_SSLv23(), special padding was never detected
4283 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
4284 version rollback attacks was not effective.
4286 In s23_clnt.c, don't use special rollback-attack detection padding
4287 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
4288 client; similarly, in s23_srvr.c, don't do the rollback check if
4289 SSL 2.0 is the only protocol enabled in the server.
4292 *) Make it possible to get hexdumps of unprintable data with 'openssl
4293 asn1parse'. By implication, the functions ASN1_parse_dump() and
4294 BIO_dump_indent() are added.
4297 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
4298 these print out strings and name structures based on various
4299 flags including RFC2253 support and proper handling of
4300 multibyte characters. Added options to the 'x509' utility
4301 to allow the various flags to be set.
4304 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
4305 Also change the functions X509_cmp_current_time() and
4306 X509_gmtime_adj() work with an ASN1_TIME structure,
4307 this will enable certificates using GeneralizedTime in validity
4308 dates to be checked.
4311 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
4312 negative public key encodings) on by default,
4313 NO_NEG_PUBKEY_BUG can be set to disable it.
4316 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
4317 content octets. An i2c_ASN1_OBJECT is unnecessary because
4318 the encoding can be trivially obtained from the structure.
4321 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
4322 not read locks (CRYPTO_r_[un]lock).
4325 *) A first attempt at creating official support for shared
4326 libraries through configuration. I've kept it so the
4327 default is static libraries only, and the OpenSSL programs
4328 are always statically linked for now, but there are
4329 preparations for dynamic linking in place.
4330 This has been tested on Linux and Tru64.
4333 *) Randomness polling function for Win9x, as described in:
4334 Peter Gutmann, Software Generation of Practically Strong
4338 *) Fix so PRNG is seeded in req if using an already existing
4342 *) New options to smime application. -inform and -outform
4343 allow alternative formats for the S/MIME message including
4344 PEM and DER. The -content option allows the content to be
4345 specified separately. This should allow things like Netscape
4346 form signing output easier to verify.
4349 *) Fix the ASN1 encoding of tags using the 'long form'.
4352 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
4353 STRING types. These convert content octets to and from the
4354 underlying type. The actual tag and length octets are
4355 already assumed to have been read in and checked. These
4356 are needed because all other string types have virtually
4357 identical handling apart from the tag. By having versions
4358 of the ASN1 functions that just operate on content octets
4359 IMPLICIT tagging can be handled properly. It also allows
4360 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
4361 and ASN1_INTEGER are identical apart from the tag.
4364 *) Change the handling of OID objects as follows:
4366 - New object identifiers are inserted in objects.txt, following
4367 the syntax given in objects.README.
4368 - objects.pl is used to process obj_mac.num and create a new
4370 - obj_dat.pl is used to create a new obj_dat.h, using the data in
4373 This is currently kind of a hack, and the perl code in objects.pl
4374 isn't very elegant, but it works as I intended. The simplest way
4375 to check that it worked correctly is to look in obj_dat.h and
4376 check the array nid_objs and make sure the objects haven't moved
4377 around (this is important!). Additions are OK, as well as
4378 consistent name changes.
4381 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
4384 *) Addition of the command line parameter '-rand file' to 'openssl req'.
4385 The given file adds to whatever has already been seeded into the
4386 random pool through the RANDFILE configuration file option or
4387 environment variable, or the default random state file.
4390 *) mkstack.pl now sorts each macro group into lexical order.
4391 Previously the output order depended on the order the files
4392 appeared in the directory, resulting in needless rewriting
4396 *) Patches to make OpenSSL compile under Win32 again. Mostly
4397 work arounds for the VC++ problem that it treats func() as
4398 func(void). Also stripped out the parts of mkdef.pl that
4399 added extra typesafe functions: these no longer exist.
4402 *) Reorganisation of the stack code. The macros are now all
4403 collected in safestack.h . Each macro is defined in terms of
4404 a "stack macro" of the form SKM_<name>(type, a, b). The
4405 DEBUG_SAFESTACK is now handled in terms of function casts,
4406 this has the advantage of retaining type safety without the
4407 use of additional functions. If DEBUG_SAFESTACK is not defined
4408 then the non typesafe macros are used instead. Also modified the
4409 mkstack.pl script to handle the new form. Needs testing to see
4410 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
4411 the default if no major problems. Similar behaviour for ASN1_SET_OF
4412 and PKCS12_STACK_OF.
4415 *) When some versions of IIS use the 'NET' form of private key the
4416 key derivation algorithm is different. Normally MD5(password) is
4417 used as a 128 bit RC4 key. In the modified case
4418 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
4419 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
4420 as the old Netscape_RSA functions except they have an additional
4421 'sgckey' parameter which uses the modified algorithm. Also added
4422 an -sgckey command line option to the rsa utility. Thanks to
4423 Adrian Peck <bertie@ncipher.com> for posting details of the modified
4424 algorithm to openssl-dev.
4427 *) The evp_local.h macros were using 'c.##kname' which resulted in
4428 invalid expansion on some systems (SCO 5.0.5 for example).
4429 Corrected to 'c.kname'.
4430 [Phillip Porch <root@theporch.com>]
4432 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
4433 a STACK of email addresses from a certificate or request, these look
4434 in the subject name and the subject alternative name extensions and
4435 omit any duplicate addresses.
4438 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
4439 This makes DSA verification about 2 % faster.
4442 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
4443 (meaning that now 2^5 values will be precomputed, which is only 4 KB
4444 plus overhead for 1024 bit moduli).
4445 This makes exponentiations about 0.5 % faster for 1024 bit
4446 exponents (as measured by "openssl speed rsa2048").
4449 *) Rename memory handling macros to avoid conflicts with other
4451 Malloc => OPENSSL_malloc
4452 Malloc_locked => OPENSSL_malloc_locked
4453 Realloc => OPENSSL_realloc
4454 Free => OPENSSL_free
4457 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
4458 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
4461 *) CygWin32 support.
4462 [John Jarvie <jjarvie@newsguy.com>]
4464 *) The type-safe stack code has been rejigged. It is now only compiled
4465 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
4466 by default all type-specific stack functions are "#define"d back to
4467 standard stack functions. This results in more streamlined output
4468 but retains the type-safety checking possibilities of the original
4472 *) The STACK code has been cleaned up, and certain type declarations
4473 that didn't make a lot of sense have been brought in line. This has
4474 also involved a cleanup of sorts in safestack.h to more correctly
4475 map type-safe stack functions onto their plain stack counterparts.
4476 This work has also resulted in a variety of "const"ifications of
4477 lots of the code, especially "_cmp" operations which should normally
4478 be prototyped with "const" parameters anyway.
4481 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
4482 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
4483 (The PRNG state consists of two parts, the large pool 'state' and 'md',
4484 where all of 'md' is used each time the PRNG is used, but 'state'
4485 is used only indexed by a cyclic counter. As entropy may not be
4486 well distributed from the beginning, 'md' is important as a
4487 chaining variable. However, the output function chains only half
4488 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
4489 all of 'md', and seeding with STATE_SIZE dummy bytes will result
4490 in all of 'state' being rewritten, with the new values depending
4491 on virtually all of 'md'. This overcomes the 80 bit limitation.)
4494 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
4495 the handshake is continued after ssl_verify_cert_chain();
4496 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
4497 can lead to 'unexplainable' connection aborts later.
4498 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
4500 *) Major EVP API cipher revision.
4501 Add hooks for extra EVP features. This allows various cipher
4502 parameters to be set in the EVP interface. Support added for variable
4503 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
4504 setting of RC2 and RC5 parameters.
4506 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
4509 Remove lots of duplicated code from the EVP library. For example *every*
4510 cipher init() function handles the 'iv' in the same way according to the
4511 cipher mode. They also all do nothing if the 'key' parameter is NULL and
4512 for CFB and OFB modes they zero ctx->num.
4514 New functionality allows removal of S/MIME code RC2 hack.
4516 Most of the routines have the same form and so can be declared in terms
4519 By shifting this to the top level EVP_CipherInit() it can be removed from
4520 all individual ciphers. If the cipher wants to handle IVs or keys
4521 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
4524 Change lots of functions like EVP_EncryptUpdate() to now return a
4525 value: although software versions of the algorithms cannot fail
4526 any installed hardware versions can.
4529 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
4530 this option is set, tolerate broken clients that send the negotiated
4531 protocol version number instead of the requested protocol version
4535 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
4536 i.e. non-zero for export ciphersuites, zero otherwise.
4537 Previous versions had this flag inverted, inconsistent with
4538 rsa_tmp_cb (..._TMP_RSA_CB).
4539 [Bodo Moeller; problem reported by Amit Chopra]
4541 *) Add missing DSA library text string. Work around for some IIS
4542 key files with invalid SEQUENCE encoding.
4545 *) Add a document (doc/standards.txt) that list all kinds of standards
4546 and so on that are implemented in OpenSSL.
4549 *) Enhance c_rehash script. Old version would mishandle certificates
4550 with the same subject name hash and wouldn't handle CRLs at all.
4551 Added -fingerprint option to crl utility, to support new c_rehash
4555 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
4558 *) Fix for SSL server purpose checking. Server checking was
4559 rejecting certificates which had extended key usage present
4560 but no ssl client purpose.
4561 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
4563 *) Make PKCS#12 code work with no password. The PKCS#12 spec
4564 is a little unclear about how a blank password is handled.
4565 Since the password in encoded as a BMPString with terminating
4566 double NULL a zero length password would end up as just the
4567 double NULL. However no password at all is different and is
4568 handled differently in the PKCS#12 key generation code. NS
4569 treats a blank password as zero length. MSIE treats it as no
4570 password on export: but it will try both on import. We now do
4571 the same: PKCS12_parse() tries zero length and no password if
4572 the password is set to "" or NULL (NULL is now a valid password:
4573 it wasn't before) as does the pkcs12 application.
4576 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
4577 perror when PEM_read_bio_X509_REQ fails, the error message must
4578 be obtained from the error queue.
4581 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
4582 it in ERR_remove_state if appropriate, and change ERR_get_state
4583 accordingly to avoid race conditions (this is necessary because
4584 thread_hash is no longer constant once set).
4587 *) Bugfix for linux-elf makefile.one.
4590 *) RSA_get_default_method() will now cause a default
4591 RSA_METHOD to be chosen if one doesn't exist already.
4592 Previously this was only set during a call to RSA_new()
4593 or RSA_new_method(NULL) meaning it was possible for
4594 RSA_get_default_method() to return NULL.
4597 *) Added native name translation to the existing DSO code
4598 that will convert (if the flag to do so is set) filenames
4599 that are sufficiently small and have no path information
4600 into a canonical native form. Eg. "blah" converted to
4601 "libblah.so" or "blah.dll" etc.
4604 *) New function ERR_error_string_n(e, buf, len) which is like
4605 ERR_error_string(e, buf), but writes at most 'len' bytes
4606 including the 0 terminator. For ERR_error_string_n, 'buf'
4608 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
4610 *) CONF library reworked to become more general. A new CONF
4611 configuration file reader "class" is implemented as well as a
4612 new functions (NCONF_*, for "New CONF") to handle it. The now
4613 old CONF_* functions are still there, but are reimplemented to
4614 work in terms of the new functions. Also, a set of functions
4615 to handle the internal storage of the configuration data is
4616 provided to make it easier to write new configuration file
4617 reader "classes" (I can definitely see something reading a
4618 configuration file in XML format, for example), called _CONF_*,
4619 or "the configuration storage API"...
4621 The new configuration file reading functions are:
4623 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
4624 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
4626 NCONF_default, NCONF_WIN32
4628 NCONF_dump_fp, NCONF_dump_bio
4630 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
4631 NCONF_new creates a new CONF object. This works in the same way
4632 as other interfaces in OpenSSL, like the BIO interface.
4633 NCONF_dump_* dump the internal storage of the configuration file,
4634 which is useful for debugging. All other functions take the same
4635 arguments as the old CONF_* functions wth the exception of the
4636 first that must be a `CONF *' instead of a `LHASH *'.
4638 To make it easer to use the new classes with the old CONF_* functions,
4639 the function CONF_set_default_method is provided.
4642 *) Add '-tls1' option to 'openssl ciphers', which was already
4643 mentioned in the documentation but had not been implemented.
4644 (This option is not yet really useful because even the additional
4645 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
4648 *) Initial DSO code added into libcrypto for letting OpenSSL (and
4649 OpenSSL-based applications) load shared libraries and bind to
4650 them in a portable way.
4651 [Geoff Thorpe, with contributions from Richard Levitte]
4653 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
4655 *) Make sure _lrotl and _lrotr are only used with MSVC.
4657 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
4658 (the default implementation of RAND_status).
4660 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
4661 to '-clrext' (= clear extensions), as intended and documented.
4662 [Bodo Moeller; inconsistency pointed out by Michael Attili
4665 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
4666 was larger than the MD block size.
4667 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
4669 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
4670 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
4671 using the passed key: if the passed key was a private key the result
4672 of X509_print(), for example, would be to print out all the private key
4676 *) des_quad_cksum() byte order bug fix.
4677 [Ulf Möller, using the problem description in krb4-0.9.7, where
4678 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
4680 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
4682 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
4684 *) For easily testing in shell scripts whether some command
4685 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
4686 returns with exit code 0 iff no command of the given name is available.
4687 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
4688 the output goes to stdout and nothing is printed to stderr.
4689 Additional arguments are always ignored.
4691 Since for each cipher there is a command of the same name,
4692 the 'no-cipher' compilation switches can be tested this way.
4694 ('openssl no-XXX' is not able to detect pseudo-commands such
4695 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
4698 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
4701 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
4702 is set; it will be thrown away anyway because each handshake creates
4704 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
4705 to parameters -- in previous versions (since OpenSSL 0.9.3) the
4706 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
4707 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
4710 *) New s_client option -ign_eof: EOF at stdin is ignored, and
4711 'Q' and 'R' lose their special meanings (quit/renegotiate).
4712 This is part of what -quiet does; unlike -quiet, -ign_eof
4713 does not suppress any output.
4716 *) Add compatibility options to the purpose and trust code. The
4717 purpose X509_PURPOSE_ANY is "any purpose" which automatically
4718 accepts a certificate or CA, this was the previous behaviour,
4719 with all the associated security issues.
4721 X509_TRUST_COMPAT is the old trust behaviour: only and
4722 automatically trust self signed roots in certificate store. A
4723 new trust setting X509_TRUST_DEFAULT is used to specify that
4724 a purpose has no associated trust setting and it should instead
4725 use the value in the default purpose.
4728 *) Fix the PKCS#8 DSA private key code so it decodes keys again
4729 and fix a memory leak.
4732 *) In util/mkerr.pl (which implements 'make errors'), preserve
4733 reason strings from the previous version of the .c file, as
4734 the default to have only downcase letters (and digits) in
4735 automatically generated reasons codes is not always appropriate.
4738 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
4739 using strerror. Previously, ERR_reason_error_string() returned
4740 library names as reason strings for SYSerr; but SYSerr is a special
4741 case where small numbers are errno values, not library numbers.
4744 *) Add '-dsaparam' option to 'openssl dhparam' application. This
4745 converts DSA parameters into DH parameters. (When creating parameters,
4746 DSA_generate_parameters is used.)
4749 *) Include 'length' (recommended exponent length) in C code generated
4750 by 'openssl dhparam -C'.
4753 *) The second argument to set_label in perlasm was already being used
4754 so couldn't be used as a "file scope" flag. Moved to third argument
4758 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
4759 instead of RAND_bytes for encryption IVs and salts.
4762 *) Include RAND_status() into RAND_METHOD instead of implementing
4763 it only for md_rand.c Otherwise replacing the PRNG by calling
4764 RAND_set_rand_method would be impossible.
4767 *) Don't let DSA_generate_key() enter an infinite loop if the random
4768 number generation fails.
4771 *) New 'rand' application for creating pseudo-random output.
4774 *) Added configuration support for Linux/IA64
4775 [Rolf Haberrecker <rolf@suse.de>]
4777 *) Assembler module support for Mingw32.
4780 *) Shared library support for HPUX (in shlib/).
4781 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
4783 *) Shared library support for Solaris gcc.
4784 [Lutz Behnke <behnke@trustcenter.de>]
4786 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
4788 *) PKCS7_encrypt() was adding text MIME headers twice because they
4789 were added manually and by SMIME_crlf_copy().
4792 *) In bntest.c don't call BN_rand with zero bits argument.
4793 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
4795 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
4796 case was implemented. This caused BN_div_recp() to fail occasionally.
4799 *) Add an optional second argument to the set_label() in the perl
4800 assembly language builder. If this argument exists and is set
4801 to 1 it signals that the assembler should use a symbol whose
4802 scope is the entire file, not just the current function. This
4803 is needed with MASM which uses the format label:: for this scope.
4804 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
4806 *) Change the ASN1 types so they are typedefs by default. Before
4807 almost all types were #define'd to ASN1_STRING which was causing
4808 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
4812 *) Change names of new functions to the new get1/get0 naming
4813 convention: After 'get1', the caller owns a reference count
4814 and has to call ..._free; 'get0' returns a pointer to some
4815 data structure without incrementing reference counters.
4816 (Some of the existing 'get' functions increment a reference
4817 counter, some don't.)
4818 Similarly, 'set1' and 'add1' functions increase reference
4819 counters or duplicate objects.
4822 *) Allow for the possibility of temp RSA key generation failure:
4823 the code used to assume it always worked and crashed on failure.
4826 *) Fix potential buffer overrun problem in BIO_printf().
4827 [Ulf Möller, using public domain code by Patrick Powell; problem
4828 pointed out by David Sacerdote <das33@cornell.edu>]
4830 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
4831 RAND_egd() and RAND_status(). In the command line application,
4832 the EGD socket can be specified like a seed file using RANDFILE
4836 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
4837 Some CAs (e.g. Verisign) distribute certificates in this form.
4840 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
4841 list to exclude them. This means that no special compilation option
4842 is needed to use anonymous DH: it just needs to be included in the
4846 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
4847 EVP_MD_type. The old functionality is available in a new macro called
4848 EVP_MD_md(). Change code that uses it and update docs.
4851 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
4852 where the 'void *' argument is replaced by a function pointer argument.
4853 Previously 'void *' was abused to point to functions, which works on
4854 many platforms, but is not correct. As these functions are usually
4855 called by macros defined in OpenSSL header files, most source code
4856 should work without changes.
4859 *) <openssl/opensslconf.h> (which is created by Configure) now contains
4860 sections with information on -D... compiler switches used for
4861 compiling the library so that applications can see them. To enable
4862 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
4863 must be defined. E.g.,
4864 #define OPENSSL_ALGORITHM_DEFINES
4865 #include <openssl/opensslconf.h>
4866 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
4867 [Richard Levitte, Ulf and Bodo Möller]
4869 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
4873 *) Change the 'other' type in certificate aux info to a STACK_OF
4874 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
4875 the required ASN1 format: arbitrary types determined by an OID.
4878 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
4879 argument to 'req'. This is not because the function is newer or
4880 better than others it just uses the work 'NEW' in the certificate
4881 request header lines. Some software needs this.
4884 *) Reorganise password command line arguments: now passwords can be
4885 obtained from various sources. Delete the PEM_cb function and make
4886 it the default behaviour: i.e. if the callback is NULL and the
4887 usrdata argument is not NULL interpret it as a null terminated pass
4888 phrase. If usrdata and the callback are NULL then the pass phrase
4889 is prompted for as usual.
4892 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
4893 the support is automatically enabled. The resulting binaries will
4894 autodetect the card and use it if present.
4895 [Ben Laurie and Compaq Inc.]
4897 *) Work around for Netscape hang bug. This sends certificate request
4898 and server done in one record. Since this is perfectly legal in the
4899 SSL/TLS protocol it isn't a "bug" option and is on by default. See
4900 the bugs/SSLv3 entry for more info.
4903 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
4906 *) Add -rand argument to smime and pkcs12 applications and read/write
4910 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
4913 *) Add command line password options to the remaining applications.
4916 *) Bug fix for BN_div_recp() for numerators with an even number of
4920 *) More tests in bntest.c, and changed test_bn output.
4923 *) ./config recognizes MacOS X now.
4926 *) Bug fix for BN_div() when the first words of num and divsor are
4927 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
4930 *) Add support for various broken PKCS#8 formats, and command line
4931 options to produce them.
4934 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
4935 get temporary BIGNUMs from a BN_CTX.
4938 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
4942 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
4943 include a #define from the old name to the new. The original intent
4944 was that statically linked binaries could for example just call
4945 SSLeay_add_all_ciphers() to just add ciphers to the table and not
4946 link with digests. This never worked becayse SSLeay_add_all_digests()
4947 and SSLeay_add_all_ciphers() were in the same source file so calling
4948 one would link with the other. They are now in separate source files.
4951 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
4954 *) Use a less unusual form of the Miller-Rabin primality test (it used
4955 a binary algorithm for exponentiation integrated into the Miller-Rabin
4956 loop, our standard modexp algorithms are faster).
4959 *) Support for the EBCDIC character set completed.
4960 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
4962 *) Source code cleanups: use const where appropriate, eliminate casts,
4963 use void * instead of char * in lhash.
4966 *) Bugfix: ssl3_send_server_key_exchange was not restartable
4967 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
4968 this the server could overwrite ephemeral keys that the client
4972 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
4973 using 50 iterations of the Rabin-Miller test.
4975 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
4976 iterations of the Rabin-Miller test as required by the appendix
4977 to FIPS PUB 186[-1]) instead of DSA_is_prime.
4978 As BN_is_prime_fasttest includes trial division, DSA parameter
4979 generation becomes much faster.
4981 This implies a change for the callback functions in DSA_is_prime
4982 and DSA_generate_parameters: The callback function is called once
4983 for each positive witness in the Rabin-Miller test, not just
4984 occasionally in the inner loop; and the parameters to the
4985 callback function now provide an iteration count for the outer
4986 loop rather than for the current invocation of the inner loop.
4987 DSA_generate_parameters additionally can call the callback
4988 function with an 'iteration count' of -1, meaning that a
4989 candidate has passed the trial division test (when q is generated
4990 from an application-provided seed, trial division is skipped).
4993 *) New function BN_is_prime_fasttest that optionally does trial
4994 division before starting the Rabin-Miller test and has
4995 an additional BN_CTX * argument (whereas BN_is_prime always
4996 has to allocate at least one BN_CTX).
4997 'callback(1, -1, cb_arg)' is called when a number has passed the
4998 trial division stage.
5001 *) Fix for bug in CRL encoding. The validity dates weren't being handled
5005 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
5008 *) New function BN_pseudo_rand().
5011 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
5012 bignum version of BN_from_montgomery() with the working code from
5013 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
5017 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
5018 made it impossible to use the same SSL_SESSION data structure in
5019 SSL2 clients in multiple threads.
5022 *) The return value of RAND_load_file() no longer counts bytes obtained
5023 by stat(). RAND_load_file(..., -1) is new and uses the complete file
5024 to seed the PRNG (previously an explicit byte count was required).
5025 [Ulf Möller, Bodo Möller]
5027 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
5028 used (char *) instead of (void *) and had casts all over the place.
5031 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
5034 *) Retain source code compatibility for BN_prime_checks macro:
5035 BN_is_prime(..., BN_prime_checks, ...) now uses
5036 BN_prime_checks_for_size to determine the appropriate number of
5037 Rabin-Miller iterations.
5040 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
5041 DH_CHECK_P_NOT_SAFE_PRIME.
5042 (Check if this is true? OpenPGP calls them "strong".)
5045 *) Merge the functionality of "dh" and "gendh" programs into a new program
5046 "dhparam". The old programs are retained for now but will handle DH keys
5047 (instead of parameters) in future.
5050 *) Make the ciphers, s_server and s_client programs check the return values
5051 when a new cipher list is set.
5054 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
5055 ciphers. Before when the 56bit ciphers were enabled the sorting was
5058 The syntax for the cipher sorting has been extended to support sorting by
5059 cipher-strength (using the strength_bits hard coded in the tables).
5060 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
5062 Fix a bug in the cipher-command parser: when supplying a cipher command
5063 string with an "undefined" symbol (neither command nor alphanumeric
5064 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
5065 an error is flagged.
5067 Due to the strength-sorting extension, the code of the
5068 ssl_create_cipher_list() function was completely rearranged. I hope that
5069 the readability was also increased :-)
5070 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5072 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
5073 for the first serial number and places 2 in the serial number file. This
5074 avoids problems when the root CA is created with serial number zero and
5075 the first user certificate has the same issuer name and serial number
5079 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
5080 the new code. Add documentation for this stuff.
5083 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
5084 X509_*() to X509at_*() on the grounds that they don't handle X509
5085 structures and behave in an analagous way to the X509v3 functions:
5086 they shouldn't be called directly but wrapper functions should be used
5089 So we also now have some wrapper functions that call the X509at functions
5090 when passed certificate requests. (TO DO: similar things can be done with
5091 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
5092 things. Some of these need some d2i or i2d and print functionality
5093 because they handle more complex structures.)
5096 *) Add missing #ifndefs that caused missing symbols when building libssl
5097 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
5098 NO_RSA in ssl/s2*.c.
5099 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
5101 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
5102 has a return value which indicates the quality of the random data
5103 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
5104 error queue. New function RAND_pseudo_bytes() generates output that is
5105 guaranteed to be unique but not unpredictable. RAND_add is like
5106 RAND_seed, but takes an extra argument for an entropy estimate
5107 (RAND_seed always assumes full entropy).
5110 *) Do more iterations of Rabin-Miller probable prime test (specifically,
5111 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
5112 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
5113 in crypto/bn/bn_prime.c for the complete table). This guarantees a
5114 false-positive rate of at most 2^-80 for random input.
5117 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
5120 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
5121 in the 0.9.5 release), this returns the chain
5122 from an X509_CTX structure with a dup of the stack and all
5123 the X509 reference counts upped: so the stack will exist
5124 after X509_CTX_cleanup() has been called. Modify pkcs12.c
5127 Also make SSL_SESSION_print() print out the verify return
5131 *) Add manpage for the pkcs12 command. Also change the default
5132 behaviour so MAC iteration counts are used unless the new
5133 -nomaciter option is used. This improves file security and
5134 only older versions of MSIE (4.0 for example) need it.
5137 *) Honor the no-xxx Configure options when creating .DEF files.
5140 *) Add PKCS#10 attributes to field table: challengePassword,
5141 unstructuredName and unstructuredAddress. These are taken from
5142 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
5143 international characters are used.
5145 More changes to X509_ATTRIBUTE code: allow the setting of types
5146 based on strings. Remove the 'loc' parameter when adding
5147 attributes because these will be a SET OF encoding which is sorted
5151 *) Initial changes to the 'req' utility to allow request generation
5152 automation. This will allow an application to just generate a template
5153 file containing all the field values and have req construct the
5156 Initial support for X509_ATTRIBUTE handling. Stacks of these are
5157 used all over the place including certificate requests and PKCS#7
5158 structures. They are currently handled manually where necessary with
5159 some primitive wrappers for PKCS#7. The new functions behave in a
5160 manner analogous to the X509 extension functions: they allow
5161 attributes to be looked up by NID and added.
5163 Later something similar to the X509V3 code would be desirable to
5164 automatically handle the encoding, decoding and printing of the
5165 more complex types. The string types like challengePassword can
5166 be handled by the string table functions.
5168 Also modified the multi byte string table handling. Now there is
5169 a 'global mask' which masks out certain types. The table itself
5170 can use the flag STABLE_NO_MASK to ignore the mask setting: this
5171 is useful when for example there is only one permissible type
5172 (as in countryName) and using the mask might result in no valid
5176 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
5177 SSL_get_peer_finished to allow applications to obtain the latest
5178 Finished messages sent to the peer or expected from the peer,
5179 respectively. (SSL_get_peer_finished is usually the Finished message
5180 actually received from the peer, otherwise the protocol will be aborted.)
5182 As the Finished message are message digests of the complete handshake
5183 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
5184 be used for external authentication procedures when the authentication
5185 provided by SSL/TLS is not desired or is not enough.
5188 *) Enhanced support for Alpha Linux is added. Now ./config checks if
5189 the host supports BWX extension and if Compaq C is present on the
5190 $PATH. Just exploiting of the BWX extension results in 20-30%
5191 performance kick for some algorithms, e.g. DES and RC4 to mention
5192 a couple. Compaq C in turn generates ~20% faster code for MD5 and
5196 *) Add support for MS "fast SGC". This is arguably a violation of the
5197 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
5198 weak crypto and after checking the certificate is SGC a second one
5199 with strong crypto. MS SGC stops the first handshake after receiving
5200 the server certificate message and sends a second client hello. Since
5201 a server will typically do all the time consuming operations before
5202 expecting any further messages from the client (server key exchange
5203 is the most expensive) there is little difference between the two.
5205 To get OpenSSL to support MS SGC we have to permit a second client
5206 hello message after we have sent server done. In addition we have to
5207 reset the MAC if we do get this second client hello.
5210 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
5211 if a DER encoded private key is RSA or DSA traditional format. Changed
5212 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
5213 format DER encoded private key. Newer code should use PKCS#8 format which
5214 has the key type encoded in the ASN1 structure. Added DER private key
5215 support to pkcs8 application.
5218 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
5219 ciphersuites has been selected (as required by the SSL 3/TLS 1
5220 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
5221 is set, we interpret this as a request to violate the specification
5222 (the worst that can happen is a handshake failure, and 'correct'
5223 behaviour would result in a handshake failure anyway).
5226 *) In SSL_CTX_add_session, take into account that there might be multiple
5227 SSL_SESSION structures with the same session ID (e.g. when two threads
5228 concurrently obtain them from an external cache).
5229 The internal cache can handle only one SSL_SESSION with a given ID,
5230 so if there's a conflict, we now throw out the old one to achieve
5234 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
5235 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
5236 some routines that use cipher OIDs: some ciphers do not have OIDs
5237 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
5241 *) Simplify the trust setting structure and code. Now we just have
5242 two sequences of OIDs for trusted and rejected settings. These will
5243 typically have values the same as the extended key usage extension
5244 and any application specific purposes.
5246 The trust checking code now has a default behaviour: it will just
5247 check for an object with the same NID as the passed id. Functions can
5248 be provided to override either the default behaviour or the behaviour
5249 for a given id. SSL client, server and email already have functions
5250 in place for compatibility: they check the NID and also return "trusted"
5251 if the certificate is self signed.
5254 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
5255 traditional format into an EVP_PKEY structure.
5258 *) Add a password callback function PEM_cb() which either prompts for
5259 a password if usr_data is NULL or otherwise assumes it is a null
5260 terminated password. Allow passwords to be passed on command line
5261 environment or config files in a few more utilities.
5264 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
5265 keys. Add some short names for PKCS#8 PBE algorithms and allow them
5266 to be specified on the command line for the pkcs8 and pkcs12 utilities.
5267 Update documentation.
5270 *) Support for ASN1 "NULL" type. This could be handled before by using
5271 ASN1_TYPE but there wasn't any function that would try to read a NULL
5272 and produce an error if it couldn't. For compatibility we also have
5273 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
5274 don't allocate anything because they don't need to.
5277 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
5279 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
5281 *) Rebuild of the memory allocation routines used by OpenSSL code and
5282 possibly others as well. The purpose is to make an interface that
5283 provide hooks so anyone can build a separate set of allocation and
5284 deallocation routines to be used by OpenSSL, for example memory
5285 pool implementations, or something else, which was previously hard
5286 since Malloc(), Realloc() and Free() were defined as macros having
5287 the values malloc, realloc and free, respectively (except for Win32
5288 compilations). The same is provided for memory debugging code.
5289 OpenSSL already comes with functionality to find memory leaks, but
5290 this gives people a chance to debug other memory problems.
5292 With these changes, a new set of functions and macros have appeared:
5294 CRYPTO_set_mem_debug_functions() [F]
5295 CRYPTO_get_mem_debug_functions() [F]
5296 CRYPTO_dbg_set_options() [F]
5297 CRYPTO_dbg_get_options() [F]
5298 CRYPTO_malloc_debug_init() [M]
5300 The memory debug functions are NULL by default, unless the library
5301 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
5302 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
5303 gives the standard debugging functions that come with OpenSSL) or
5304 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
5305 provided by the library user) must be used. When the standard
5306 debugging functions are used, CRYPTO_dbg_set_options can be used to
5307 request additional information:
5308 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
5309 the CRYPTO_MDEBUG_xxx macro when compiling the library.
5311 Also, things like CRYPTO_set_mem_functions will always give the
5312 expected result (the new set of functions is used for allocation
5313 and deallocation) at all times, regardless of platform and compiler
5316 To finish it up, some functions that were never use in any other
5317 way than through macros have a new API and new semantic:
5320 CRYPTO_dbg_realloc()
5323 All macros of value have retained their old syntax.
5324 [Richard Levitte and Bodo Moeller]
5326 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
5327 ordering of SMIMECapabilities wasn't in "strength order" and there
5328 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
5332 *) Some ASN1 types with illegal zero length encoding (INTEGER,
5333 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
5334 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
5336 *) Merge in my S/MIME library for OpenSSL. This provides a simple
5337 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
5338 functionality to handle multipart/signed properly) and a utility
5339 called 'smime' to call all this stuff. This is based on code I
5340 originally wrote for Celo who have kindly allowed it to be
5341 included in OpenSSL.
5344 *) Add variants des_set_key_checked and des_set_key_unchecked of
5345 des_set_key (aka des_key_sched). Global variable des_check_key
5346 decides which of these is called by des_set_key; this way
5347 des_check_key behaves as it always did, but applications and
5348 the library itself, which was buggy for des_check_key == 1,
5349 have a cleaner way to pick the version they need.
5352 *) New function PKCS12_newpass() which changes the password of a
5356 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
5357 dynamic mix. In both cases the ids can be used as an index into the
5358 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
5359 functions so they accept a list of the field values and the
5360 application doesn't need to directly manipulate the X509_TRUST
5364 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
5368 *) Modify the way the V3 extension code looks up extensions. This now
5369 works in a similar way to the object code: we have some "standard"
5370 extensions in a static table which is searched with OBJ_bsearch()
5371 and the application can add dynamic ones if needed. The file
5372 crypto/x509v3/ext_dat.h now has the info: this file needs to be
5373 updated whenever a new extension is added to the core code and kept
5374 in ext_nid order. There is a simple program 'tabtest.c' which checks
5375 this. New extensions are not added too often so this file can readily
5376 be maintained manually.
5378 There are two big advantages in doing things this way. The extensions
5379 can be looked up immediately and no longer need to be "added" using
5380 X509V3_add_standard_extensions(): this function now does nothing.
5381 [Side note: I get *lots* of email saying the extension code doesn't
5382 work because people forget to call this function]
5383 Also no dynamic allocation is done unless new extensions are added:
5384 so if we don't add custom extensions there is no need to call
5385 X509V3_EXT_cleanup().
5388 *) Modify enc utility's salting as follows: make salting the default. Add a
5389 magic header, so unsalted files fail gracefully instead of just decrypting
5390 to garbage. This is because not salting is a big security hole, so people
5391 should be discouraged from doing it.
5394 *) Fixes and enhancements to the 'x509' utility. It allowed a message
5395 digest to be passed on the command line but it only used this
5396 parameter when signing a certificate. Modified so all relevant
5397 operations are affected by the digest parameter including the
5398 -fingerprint and -x509toreq options. Also -x509toreq choked if a
5399 DSA key was used because it didn't fix the digest.
5402 *) Initial certificate chain verify code. Currently tests the untrusted
5403 certificates for consistency with the verify purpose (which is set
5404 when the X509_STORE_CTX structure is set up) and checks the pathlength.
5406 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
5407 this is because it will reject chains with invalid extensions whereas
5408 every previous version of OpenSSL and SSLeay made no checks at all.
5410 Trust code: checks the root CA for the relevant trust settings. Trust
5411 settings have an initial value consistent with the verify purpose: e.g.
5412 if the verify purpose is for SSL client use it expects the CA to be
5413 trusted for SSL client use. However the default value can be changed to
5414 permit custom trust settings: one example of this would be to only trust
5415 certificates from a specific "secure" set of CAs.
5417 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
5418 which should be used for version portability: especially since the
5419 verify structure is likely to change more often now.
5421 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
5422 to set them. If not set then assume SSL clients will verify SSL servers
5425 Two new options to the verify program: -untrusted allows a set of
5426 untrusted certificates to be passed in and -purpose which sets the
5427 intended purpose of the certificate. If a purpose is set then the
5428 new chain verify code is used to check extension consistency.
5431 *) Support for the authority information access extension.
5434 *) Modify RSA and DSA PEM read routines to transparently handle
5435 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
5436 public keys in a format compatible with certificate
5437 SubjectPublicKeyInfo structures. Unfortunately there were already
5438 functions called *_PublicKey_* which used various odd formats so
5439 these are retained for compatibility: however the DSA variants were
5440 never in a public release so they have been deleted. Changed dsa/rsa
5441 utilities to handle the new format: note no releases ever handled public
5442 keys so we should be OK.
5444 The primary motivation for this change is to avoid the same fiasco
5445 that dogs private keys: there are several incompatible private key
5446 formats some of which are standard and some OpenSSL specific and
5447 require various evil hacks to allow partial transparent handling and
5448 even then it doesn't work with DER formats. Given the option anything
5449 other than PKCS#8 should be dumped: but the other formats have to
5450 stay in the name of compatibility.
5452 With public keys and the benefit of hindsight one standard format
5453 is used which works with EVP_PKEY, RSA or DSA structures: though
5454 it clearly returns an error if you try to read the wrong kind of key.
5456 Added a -pubkey option to the 'x509' utility to output the public key.
5457 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
5458 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
5459 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
5460 that do the same as the EVP_PKEY_assign_*() except they up the
5461 reference count of the added key (they don't "swallow" the
5465 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
5466 CRLs would fail if the file contained no certificates or no CRLs:
5467 added a new function to read in both types and return the number
5468 read: this means that if none are read it will be an error. The
5469 DER versions of the certificate and CRL reader would always fail
5470 because it isn't possible to mix certificates and CRLs in DER format
5471 without choking one or the other routine. Changed this to just read
5472 a certificate: this is the best we can do. Also modified the code
5473 in apps/verify.c to take notice of return codes: it was previously
5474 attempting to read in certificates from NULL pointers and ignoring
5475 any errors: this is one reason why the cert and CRL reader seemed
5476 to work. It doesn't check return codes from the default certificate
5477 routines: these may well fail if the certificates aren't installed.
5480 *) Code to support otherName option in GeneralName.
5483 *) First update to verify code. Change the verify utility
5484 so it warns if it is passed a self signed certificate:
5485 for consistency with the normal behaviour. X509_verify
5486 has been modified to it will now verify a self signed
5487 certificate if *exactly* the same certificate appears
5488 in the store: it was previously impossible to trust a
5489 single self signed certificate. This means that:
5490 openssl verify ss.pem
5491 now gives a warning about a self signed certificate but
5492 openssl verify -CAfile ss.pem ss.pem
5496 *) For servers, store verify_result in SSL_SESSION data structure
5497 (and add it to external session representation).
5498 This is needed when client certificate verifications fails,
5499 but an application-provided verification callback (set by
5500 SSL_CTX_set_cert_verify_callback) allows accepting the session
5501 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
5502 but returns 1): When the session is reused, we have to set
5503 ssl->verify_result to the appropriate error code to avoid
5505 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
5507 *) Fix a bug in the new PKCS#7 code: it didn't consider the
5508 case in PKCS7_dataInit() where the signed PKCS7 structure
5509 didn't contain any existing data because it was being created.
5510 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
5512 *) Add a salt to the key derivation routines in enc.c. This
5513 forms the first 8 bytes of the encrypted file. Also add a
5514 -S option to allow a salt to be input on the command line.
5517 *) New function X509_cmp(). Oddly enough there wasn't a function
5518 to compare two certificates. We do this by working out the SHA1
5519 hash and comparing that. X509_cmp() will be needed by the trust
5523 *) SSL_get1_session() is like SSL_get_session(), but increments
5524 the reference count in the SSL_SESSION returned.
5525 [Geoff Thorpe <geoff@eu.c2.net>]
5527 *) Fix for 'req': it was adding a null to request attributes.
5528 Also change the X509_LOOKUP and X509_INFO code to handle
5529 certificate auxiliary information.
5532 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
5536 *) Add the possibility to add extra information to the memory leak
5537 detecting output, to form tracebacks, showing from where each
5538 allocation was originated: CRYPTO_push_info("constant string") adds
5539 the string plus current file name and line number to a per-thread
5540 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
5541 is like calling CYRPTO_pop_info() until the stack is empty.
5542 Also updated memory leak detection code to be multi-thread-safe.
5545 *) Add options -text and -noout to pkcs7 utility and delete the
5546 encryption options which never did anything. Update docs.
5549 *) Add options to some of the utilities to allow the pass phrase
5550 to be included on either the command line (not recommended on
5551 OSes like Unix) or read from the environment. Update the
5552 manpages and fix a few bugs.
5555 *) Add a few manpages for some of the openssl commands.
5558 *) Fix the -revoke option in ca. It was freeing up memory twice,
5559 leaking and not finding already revoked certificates.
5562 *) Extensive changes to support certificate auxiliary information.
5563 This involves the use of X509_CERT_AUX structure and X509_AUX
5564 functions. An X509_AUX function such as PEM_read_X509_AUX()
5565 can still read in a certificate file in the usual way but it
5566 will also read in any additional "auxiliary information". By
5567 doing things this way a fair degree of compatibility can be
5568 retained: existing certificates can have this information added
5569 using the new 'x509' options.
5571 Current auxiliary information includes an "alias" and some trust
5572 settings. The trust settings will ultimately be used in enhanced
5573 certificate chain verification routines: currently a certificate
5574 can only be trusted if it is self signed and then it is trusted
5578 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
5579 The problem was that one of the replacement routines had not been working
5580 since SSLeay releases. For now the offending routine has been replaced
5581 with non-optimised assembler. Even so, this now gives around 95%
5582 performance improvement for 1024 bit RSA signs.
5585 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
5586 handling. Most clients have the effective key size in bits equal to
5587 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
5588 A few however don't do this and instead use the size of the decrypted key
5589 to determine the RC2 key length and the AlgorithmIdentifier to determine
5590 the effective key length. In this case the effective key length can still
5591 be 40 bits but the key length can be 168 bits for example. This is fixed
5592 by manually forcing an RC2 key into the EVP_PKEY structure because the
5593 EVP code can't currently handle unusual RC2 key sizes: it always assumes
5594 the key length and effective key length are equal.
5597 *) Add a bunch of functions that should simplify the creation of
5598 X509_NAME structures. Now you should be able to do:
5599 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
5600 and have it automatically work out the correct field type and fill in
5601 the structures. The more adventurous can try:
5602 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
5603 and it will (hopefully) work out the correct multibyte encoding.
5606 *) Change the 'req' utility to use the new field handling and multibyte
5607 copy routines. Before the DN field creation was handled in an ad hoc
5608 way in req, ca, and x509 which was rather broken and didn't support
5609 BMPStrings or UTF8Strings. Since some software doesn't implement
5610 BMPStrings or UTF8Strings yet, they can be enabled using the config file
5611 using the dirstring_type option. See the new comment in the default
5612 openssl.cnf for more info.
5615 *) Make crypto/rand/md_rand.c more robust:
5616 - Assure unique random numbers after fork().
5617 - Make sure that concurrent threads access the global counter and
5618 md serializably so that we never lose entropy in them
5619 or use exactly the same state in multiple threads.
5620 Access to the large state is not always serializable because
5621 the additional locking could be a performance killer, and
5622 md should be large enough anyway.
5625 *) New file apps/app_rand.c with commonly needed functionality
5626 for handling the random seed file.
5628 Use the random seed file in some applications that previously did not:
5630 dsaparam -genkey (which also ignored its '-rand' option),
5633 x509 (when signing).
5634 Except on systems with /dev/urandom, it is crucial to have a random
5635 seed file at least for key creation, DSA signing, and for DH exchanges;
5636 for RSA signatures we could do without one.
5638 gendh and gendsa (unlike genrsa) used to read only the first byte
5639 of each file listed in the '-rand' option. The function as previously
5640 found in genrsa is now in app_rand.c and is used by all programs
5641 that support '-rand'.
5644 *) In RAND_write_file, use mode 0600 for creating files;
5645 don't just chmod when it may be too late.
5648 *) Report an error from X509_STORE_load_locations
5649 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
5652 *) New function ASN1_mbstring_copy() this copies a string in either
5653 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
5654 into an ASN1_STRING type. A mask of permissible types is passed
5655 and it chooses the "minimal" type to use or an error if not type
5659 *) Add function equivalents to the various macros in asn1.h. The old
5660 macros are retained with an M_ prefix. Code inside the library can
5661 use the M_ macros. External code (including the openssl utility)
5662 should *NOT* in order to be "shared library friendly".
5665 *) Add various functions that can check a certificate's extensions
5666 to see if it usable for various purposes such as SSL client,
5667 server or S/MIME and CAs of these types. This is currently
5668 VERY EXPERIMENTAL but will ultimately be used for certificate chain
5669 verification. Also added a -purpose flag to x509 utility to
5670 print out all the purposes.
5673 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
5677 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
5678 for, obtain and decode and extension and obtain its critical flag.
5679 This allows all the necessary extension code to be handled in a
5680 single function call.
5683 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
5684 platforms. See crypto/rc4/rc4_enc.c for further details.
5687 *) New -noout option to asn1parse. This causes no output to be produced
5688 its main use is when combined with -strparse and -out to extract data
5689 from a file (which may not be in ASN.1 format).
5692 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
5693 when producing the local key id.
5694 [Richard Levitte <levitte@stacken.kth.se>]
5696 *) New option -dhparam in s_server. This allows a DH parameter file to be
5697 stated explicitly. If it is not stated then it tries the first server
5698 certificate file. The previous behaviour hard coded the filename
5702 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
5703 a public key to be input or output. For example:
5704 openssl rsa -in key.pem -pubout -out pubkey.pem
5705 Also added necessary DSA public key functions to handle this.
5708 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
5709 in the message. This was handled by allowing
5710 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
5711 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
5713 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
5714 to the end of the strings whereas this didn't. This would cause problems
5715 if strings read with d2i_ASN1_bytes() were later modified.
5716 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
5718 *) Fix for base64 decode bug. When a base64 bio reads only one line of
5719 data and it contains EOF it will end up returning an error. This is
5720 caused by input 46 bytes long. The cause is due to the way base64
5721 BIOs find the start of base64 encoded data. They do this by trying a
5722 trial decode on each line until they find one that works. When they
5723 do a flag is set and it starts again knowing it can pass all the
5724 data directly through the decoder. Unfortunately it doesn't reset
5725 the context it uses. This means that if EOF is reached an attempt
5726 is made to pass two EOFs through the context and this causes the
5727 resulting error. This can also cause other problems as well. As is
5728 usual with these problems it takes *ages* to find and the fix is
5729 trivial: move one line.
5730 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
5732 *) Ugly workaround to get s_client and s_server working under Windows. The
5733 old code wouldn't work because it needed to select() on sockets and the
5734 tty (for keypresses and to see if data could be written). Win32 only
5735 supports select() on sockets so we select() with a 1s timeout on the
5736 sockets and then see if any characters are waiting to be read, if none
5737 are present then we retry, we also assume we can always write data to
5738 the tty. This isn't nice because the code then blocks until we've
5739 received a complete line of data and it is effectively polling the
5740 keyboard at 1s intervals: however it's quite a bit better than not
5741 working at all :-) A dedicated Windows application might handle this
5742 with an event loop for example.
5745 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
5746 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
5747 will be called when RSA_sign() and RSA_verify() are used. This is useful
5748 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
5749 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
5750 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
5751 This necessitated the support of an extra signature type NID_md5_sha1
5752 for SSL signatures and modifications to the SSL library to use it instead
5753 of calling RSA_public_decrypt() and RSA_private_encrypt().
5756 *) Add new -verify -CAfile and -CApath options to the crl program, these
5757 will lookup a CRL issuers certificate and verify the signature in a
5758 similar way to the verify program. Tidy up the crl program so it
5759 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
5760 less strict. It will now permit CRL extensions even if it is not
5761 a V2 CRL: this will allow it to tolerate some broken CRLs.
5764 *) Initialize all non-automatic variables each time one of the openssl
5765 sub-programs is started (this is necessary as they may be started
5766 multiple times from the "OpenSSL>" prompt).
5767 [Lennart Bang, Bodo Moeller]
5769 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
5770 removing all other RSA functionality (this is what NO_RSA does). This
5771 is so (for example) those in the US can disable those operations covered
5772 by the RSA patent while allowing storage and parsing of RSA keys and RSA
5776 *) Non-copying interface to BIO pairs.
5777 (still largely untested)
5780 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
5781 ASCII string. This was handled independently in various places before.
5784 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
5785 UTF8 strings a character at a time.
5788 *) Use client_version from client hello to select the protocol
5789 (s23_srvr.c) and for RSA client key exchange verification
5790 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
5793 *) Add various utility functions to handle SPKACs, these were previously
5794 handled by poking round in the structure internals. Added new function
5795 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
5796 print, verify and generate SPKACs. Based on an original idea from
5797 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
5800 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
5803 *) Allow the config file extension section to be overwritten on the
5804 command line. Based on an original idea from Massimiliano Pala
5805 <madwolf@comune.modena.it>. The new option is called -extensions
5806 and can be applied to ca, req and x509. Also -reqexts to override
5807 the request extensions in req and -crlexts to override the crl extensions
5811 *) Add new feature to the SPKAC handling in ca. Now you can include
5812 the same field multiple times by preceding it by "XXXX." for example:
5815 this is the same syntax as used in the req config file.
5818 *) Allow certificate extensions to be added to certificate requests. These
5819 are specified in a 'req_extensions' option of the req section of the
5820 config file. They can be printed out with the -text option to req but
5821 are otherwise ignored at present.
5824 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
5825 data read consists of only the final block it would not decrypted because
5826 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
5827 A misplaced 'break' also meant the decrypted final block might not be
5828 copied until the next read.
5831 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
5832 a few extra parameters to the DH structure: these will be useful if
5833 for example we want the value of 'q' or implement X9.42 DH.
5836 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
5837 provides hooks that allow the default DSA functions or functions on a
5838 "per key" basis to be replaced. This allows hardware acceleration and
5839 hardware key storage to be handled without major modification to the
5840 library. Also added low level modexp hooks and CRYPTO_EX structure and
5841 associated functions.
5844 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
5845 as "read only": it can't be written to and the buffer it points to will
5846 not be freed. Reading from a read only BIO is much more efficient than
5847 a normal memory BIO. This was added because there are several times when
5848 an area of memory needs to be read from a BIO. The previous method was
5849 to create a memory BIO and write the data to it, this results in two
5850 copies of the data and an O(n^2) reading algorithm. There is a new
5851 function BIO_new_mem_buf() which creates a read only memory BIO from
5852 an area of memory. Also modified the PKCS#7 routines to use read only
5856 *) Bugfix: ssl23_get_client_hello did not work properly when called in
5857 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
5858 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
5859 but a retry condition occured while trying to read the rest.
5862 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
5863 NID_pkcs7_encrypted by default: this was wrong since this should almost
5864 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
5865 the encrypted data type: this is a more sensible place to put it and it
5866 allows the PKCS#12 code to be tidied up that duplicated this
5870 *) Changed obj_dat.pl script so it takes its input and output files on
5871 the command line. This should avoid shell escape redirection problems
5875 *) Initial support for certificate extension requests, these are included
5876 in things like Xenroll certificate requests. Included functions to allow
5877 extensions to be obtained and added.
5880 *) -crlf option to s_client and s_server for sending newlines as
5881 CRLF (as required by many protocols).
5884 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
5886 *) Install libRSAglue.a when OpenSSL is built with RSAref.
5887 [Ralf S. Engelschall]
5889 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
5890 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
5892 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
5896 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
5897 DH parameters/keys (q is lost during that conversion, but the resulting
5898 DH parameters contain its length).
5900 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
5901 much faster than DH_generate_parameters (which creates parameters
5902 where p = 2*q + 1), and also the smaller q makes DH computations
5903 much more efficient (160-bit exponentiation instead of 1024-bit
5904 exponentiation); so this provides a convenient way to support DHE
5905 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
5906 utter importance to use
5907 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
5909 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
5910 when such DH parameters are used, because otherwise small subgroup
5911 attacks may become possible!
5914 *) Avoid memory leak in i2d_DHparams.
5917 *) Allow the -k option to be used more than once in the enc program:
5918 this allows the same encrypted message to be read by multiple recipients.
5921 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
5922 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
5923 it will always use the numerical form of the OID, even if it has a short
5927 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
5928 method only got called if p,q,dmp1,dmq1,iqmp components were present,
5929 otherwise bn_mod_exp was called. In the case of hardware keys for example
5930 no private key components need be present and it might store extra data
5931 in the RSA structure, which cannot be accessed from bn_mod_exp.
5932 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
5933 private key operations.
5936 *) Added support for SPARC Linux.
5939 *) pem_password_cb function type incompatibly changed from
5940 typedef int pem_password_cb(char *buf, int size, int rwflag);
5942 ....(char *buf, int size, int rwflag, void *userdata);
5943 so that applications can pass data to their callbacks:
5944 The PEM[_ASN1]_{read,write}... functions and macros now take an
5945 additional void * argument, which is just handed through whenever
5946 the password callback is called.
5947 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
5949 New function SSL_CTX_set_default_passwd_cb_userdata.
5951 Compatibility note: As many C implementations push function arguments
5952 onto the stack in reverse order, the new library version is likely to
5953 interoperate with programs that have been compiled with the old
5954 pem_password_cb definition (PEM_whatever takes some data that
5955 happens to be on the stack as its last argument, and the callback
5956 just ignores this garbage); but there is no guarantee whatsoever that
5959 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
5960 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
5961 problems not only on Windows, but also on some Unix platforms.
5962 To avoid problematic command lines, these definitions are now in an
5963 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
5964 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
5967 *) MIPS III/IV assembler module is reimplemented.
5970 *) More DES library cleanups: remove references to srand/rand and
5971 delete an unused file.
5974 *) Add support for the the free Netwide assembler (NASM) under Win32,
5975 since not many people have MASM (ml) and it can be hard to obtain.
5976 This is currently experimental but it seems to work OK and pass all
5977 the tests. Check out INSTALL.W32 for info.
5980 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
5981 without temporary keys kept an extra copy of the server key,
5982 and connections with temporary keys did not free everything in case
5986 *) New function RSA_check_key and new openssl rsa option -check
5987 for verifying the consistency of RSA keys.
5988 [Ulf Moeller, Bodo Moeller]
5990 *) Various changes to make Win32 compile work:
5991 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
5992 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
5993 comparison" warnings.
5994 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
5997 *) Add a debugging option to PKCS#5 v2 key generation function: when
5998 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
5999 derived keys are printed to stderr.
6002 *) Copy the flags in ASN1_STRING_dup().
6003 [Roman E. Pavlov <pre@mo.msk.ru>]
6005 *) The x509 application mishandled signing requests containing DSA
6006 keys when the signing key was also DSA and the parameters didn't match.
6008 It was supposed to omit the parameters when they matched the signing key:
6009 the verifying software was then supposed to automatically use the CA's
6010 parameters if they were absent from the end user certificate.
6012 Omitting parameters is no longer recommended. The test was also
6013 the wrong way round! This was probably due to unusual behaviour in
6014 EVP_cmp_parameters() which returns 1 if the parameters match.
6015 This meant that parameters were omitted when they *didn't* match and
6016 the certificate was useless. Certificates signed with 'ca' didn't have
6018 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
6020 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
6021 The interface is as follows:
6022 Applications can use
6023 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
6024 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
6025 "off" is now the default.
6026 The library internally uses
6027 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
6028 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
6029 to disable memory-checking temporarily.
6031 Some inconsistent states that previously were possible (and were
6032 even the default) are now avoided.
6034 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
6035 with each memory chunk allocated; this is occasionally more helpful
6036 than just having a counter.
6038 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
6040 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
6044 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
6045 which largely parallels "options", but is for changing API behaviour,
6046 whereas "options" are about protocol behaviour.
6047 Initial "mode" flags are:
6049 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
6050 a single record has been written.
6051 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
6052 retries use the same buffer location.
6053 (But all of the contents must be
6057 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
6060 *) Fix problems with no-hmac etc.
6061 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
6063 *) New functions RSA_get_default_method(), RSA_set_method() and
6064 RSA_get_method(). These allows replacement of RSA_METHODs without having
6065 to mess around with the internals of an RSA structure.
6068 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
6069 Also really enable memory leak checks in openssl.c and in some
6071 [Chad C. Mulligan, Bodo Moeller]
6073 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
6074 up the length of negative integers. This has now been simplified to just
6075 store the length when it is first determined and use it later, rather
6076 than trying to keep track of where data is copied and updating it to
6078 [Steve Henson, reported by Brien Wheeler
6079 <bwheeler@authentica-security.com>]
6081 *) Add a new function PKCS7_signatureVerify. This allows the verification
6082 of a PKCS#7 signature but with the signing certificate passed to the
6083 function itself. This contrasts with PKCS7_dataVerify which assumes the
6084 certificate is present in the PKCS#7 structure. This isn't always the
6085 case: certificates can be omitted from a PKCS#7 structure and be
6086 distributed by "out of band" means (such as a certificate database).
6089 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
6090 function prototypes in pem.h, also change util/mkdef.pl to add the
6091 necessary function names.
6094 *) mk1mf.pl (used by Windows builds) did not properly read the
6095 options set by Configure in the top level Makefile, and Configure
6096 was not even able to write more than one option correctly.
6097 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
6100 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
6101 file to be loaded from a BIO or FILE pointer. The BIO version will
6102 for example allow memory BIOs to contain config info.
6105 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
6106 Whoever hopes to achieve shared-library compatibility across versions
6107 must use this, not the compile-time macro.
6108 (Exercise 0.9.4: Which is the minimum library version required by
6110 Note: All this applies only to multi-threaded programs, others don't
6114 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
6115 through a BIO pair triggered the default case, i.e.
6116 SSLerr(...,SSL_R_UNKNOWN_STATE).
6119 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
6120 can use the SSL library even if none of the specific BIOs is
6124 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
6125 for the encoded length.
6126 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
6128 *) Add initial documentation of the X509V3 functions.
6131 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
6132 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
6133 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
6134 secure PKCS#8 private key format with a high iteration count.
6137 *) Fix determination of Perl interpreter: A perl or perl5
6138 _directory_ in $PATH was also accepted as the interpreter.
6139 [Ralf S. Engelschall]
6141 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
6142 wrong with it but it was very old and did things like calling
6143 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
6147 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
6148 to use the new extension code.
6151 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
6152 with macros. This should make it easier to change their form, add extra
6153 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
6157 *) Add to configuration table a new entry that can specify an alternative
6158 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
6159 according to Mark Crispin <MRC@Panda.COM>.
6163 *) DES CBC did not update the IV. Weird.
6166 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
6167 Changing the behaviour of the former might break existing programs --
6168 where IV updating is needed, des_ncbc_encrypt can be used.
6171 *) When bntest is run from "make test" it drives bc to check its
6172 calculations, as well as internally checking them. If an internal check
6173 fails, it needs to cause bc to give a non-zero result or make test carries
6174 on without noticing the failure. Fixed.
6177 *) DES library cleanups.
6180 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
6181 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
6182 ciphers. NOTE: although the key derivation function has been verified
6183 against some published test vectors it has not been extensively tested
6184 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
6188 *) Instead of "mkdir -p", which is not fully portable, use new
6189 Perl script "util/mkdir-p.pl".
6192 *) Rewrite the way password based encryption (PBE) is handled. It used to
6193 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
6194 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
6195 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
6196 the 'parameter' field of the AlgorithmIdentifier is passed to the
6197 underlying key generation function so it must do its own ASN1 parsing.
6198 This has also changed the EVP_PBE_CipherInit() function which now has a
6199 'parameter' argument instead of literal salt and iteration count values
6200 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
6203 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
6204 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
6205 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
6206 KEY" because this clashed with PKCS#8 unencrypted string. Since this
6207 value was just used as a "magic string" and not used directly its
6208 value doesn't matter.
6211 *) Introduce some semblance of const correctness to BN. Shame C doesn't
6215 *) "linux-sparc64" configuration (ultrapenguin).
6216 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
6217 "linux-sparc" configuration.
6218 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
6220 *) config now generates no-xxx options for missing ciphers.
6223 *) Support the EBCDIC character set (work in progress).
6224 File ebcdic.c not yet included because it has a different license.
6225 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6227 *) Support BS2000/OSD-POSIX.
6228 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6230 *) Make callbacks for key generation use void * instead of char *.
6233 *) Make S/MIME samples compile (not yet tested).
6236 *) Additional typesafe stacks.
6239 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
6243 Changes between 0.9.3 and 0.9.3a [29 May 1999]
6245 *) New configuration variant "sco5-gcc".
6247 *) Updated some demos.
6248 [Sean O Riordain, Wade Scholine]
6250 *) Add missing BIO_free at exit of pkcs12 application.
6253 *) Fix memory leak in conf.c.
6256 *) Updates for Win32 to assembler version of MD5.
6259 *) Set #! path to perl in apps/der_chop to where we found it
6260 instead of using a fixed path.
6263 *) SHA library changes for irix64-mips4-cc.
6266 *) Improvements for VMS support.
6270 Changes between 0.9.2b and 0.9.3 [24 May 1999]
6272 *) Bignum library bug fix. IRIX 6 passes "make test" now!
6273 This also avoids the problems with SC4.2 and unpatched SC5.
6274 [Andy Polyakov <appro@fy.chalmers.se>]
6276 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
6277 These are required because of the typesafe stack would otherwise break
6278 existing code. If old code used a structure member which used to be STACK
6279 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
6280 sk_num or sk_value it would produce an error because the num, data members
6281 are not present in STACK_OF. Now it just produces a warning. sk_set
6282 replaces the old method of assigning a value to sk_value
6283 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
6284 that does this will no longer work (and should use sk_set instead) but
6285 this could be regarded as a "questionable" behaviour anyway.
6288 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
6289 correctly handle encrypted S/MIME data.
6292 *) Change type of various DES function arguments from des_cblock
6293 (which means, in function argument declarations, pointer to char)
6294 to des_cblock * (meaning pointer to array with 8 char elements),
6295 which allows the compiler to do more typechecking; it was like
6296 that back in SSLeay, but with lots of ugly casts.
6298 Introduce new type const_des_cblock.
6301 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
6302 problems: find RecipientInfo structure that matches recipient certificate
6303 and initialise the ASN1 structures properly based on passed cipher.
6306 *) Belatedly make the BN tests actually check the results.
6309 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
6310 to and from BNs: it was completely broken. New compilation option
6311 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
6312 key elements as negative integers.
6315 *) Reorganize and speed up MD5.
6316 [Andy Polyakov <appro@fy.chalmers.se>]
6319 [Richard Levitte <richard@levitte.org>]
6321 *) New option -out to asn1parse to allow the parsed structure to be
6322 output to a file. This is most useful when combined with the -strparse
6323 option to examine the output of things like OCTET STRINGS.
6326 *) Make SSL library a little more fool-proof by not requiring any longer
6327 that SSL_set_{accept,connect}_state be called before
6328 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
6329 in many applications because usually everything *appeared* to work as
6330 intended anyway -- now it really works as intended).
6333 *) Move openssl.cnf out of lib/.
6336 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
6337 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
6338 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
6339 [Ralf S. Engelschall]
6341 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
6342 handle PKCS#7 enveloped data properly.
6343 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
6345 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
6346 copying pointers. The cert_st handling is changed by this in
6347 various ways (and thus what used to be known as ctx->default_cert
6348 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
6349 any longer when s->cert does not give us what we need).
6350 ssl_cert_instantiate becomes obsolete by this change.
6351 As soon as we've got the new code right (possibly it already is?),
6352 we have solved a couple of bugs of the earlier code where s->cert
6353 was used as if it could not have been shared with other SSL structures.
6355 Note that using the SSL API in certain dirty ways now will result
6356 in different behaviour than observed with earlier library versions:
6357 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
6358 does not influence s as it used to.
6360 In order to clean up things more thoroughly, inside SSL_SESSION
6361 we don't use CERT any longer, but a new structure SESS_CERT
6362 that holds per-session data (if available); currently, this is
6363 the peer's certificate chain and, for clients, the server's certificate
6364 and temporary key. CERT holds only those values that can have
6365 meaningful defaults in an SSL_CTX.
6368 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
6369 from the internal representation. Various PKCS#7 fixes: remove some
6370 evil casts and set the enc_dig_alg field properly based on the signing
6374 *) Allow PKCS#12 password to be set from the command line or the
6375 environment. Let 'ca' get its config file name from the environment
6376 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
6380 *) Allow certificate policies extension to use an IA5STRING for the
6381 organization field. This is contrary to the PKIX definition but
6382 VeriSign uses it and IE5 only recognises this form. Document 'x509'
6386 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
6387 without disallowing inline assembler and the like for non-pedantic builds.
6390 *) Support Borland C++ builder.
6391 [Janez Jere <jj@void.si>, modified by Ulf Möller]
6396 *) SHA-1 cleanups and performance enhancements.
6397 [Andy Polyakov <appro@fy.chalmers.se>]
6399 *) Sparc v8plus assembler for the bignum library.
6400 [Andy Polyakov <appro@fy.chalmers.se>]
6402 *) Accept any -xxx and +xxx compiler options in Configure.
6405 *) Update HPUX configuration.
6408 *) Add missing sk_<type>_unshift() function to safestack.h
6409 [Ralf S. Engelschall]
6411 *) New function SSL_CTX_use_certificate_chain_file that sets the
6412 "extra_cert"s in addition to the certificate. (This makes sense
6413 only for "PEM" format files, as chains as a whole are not
6417 *) Support verify_depth from the SSL API.
6418 x509_vfy.c had what can be considered an off-by-one-error:
6419 Its depth (which was not part of the external interface)
6420 was actually counting the number of certificates in a chain;
6421 now it really counts the depth.
6424 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
6425 instead of X509err, which often resulted in confusing error
6426 messages since the error codes are not globally unique
6427 (e.g. an alleged error in ssl3_accept when a certificate
6428 didn't match the private key).
6430 *) New function SSL_CTX_set_session_id_context that allows to set a default
6431 value (so that you don't need SSL_set_session_id_context for each
6432 connection using the SSL_CTX).
6435 *) OAEP decoding bug fix.
6438 *) Support INSTALL_PREFIX for package builders, as proposed by
6442 *) New Configure options "threads" and "no-threads". For systems
6443 where the proper compiler options are known (currently Solaris
6444 and Linux), "threads" is the default.
6447 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
6450 *) Install various scripts to $(OPENSSLDIR)/misc, not to
6451 $(INSTALLTOP)/bin -- they shouldn't clutter directories
6452 such as /usr/local/bin.
6455 *) "make linux-shared" to build shared libraries.
6456 [Niels Poppe <niels@netbox.org>]
6458 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
6461 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
6462 extension adding in x509 utility.
6465 *) Remove NOPROTO sections and error code comments.
6468 *) Partial rewrite of the DEF file generator to now parse the ANSI
6472 *) New Configure options --prefix=DIR and --openssldir=DIR.
6475 *) Complete rewrite of the error code script(s). It is all now handled
6476 by one script at the top level which handles error code gathering,
6477 header rewriting and C source file generation. It should be much better
6478 than the old method: it now uses a modified version of Ulf's parser to
6479 read the ANSI prototypes in all header files (thus the old K&R definitions
6480 aren't needed for error creation any more) and do a better job of
6481 translating function codes into names. The old 'ASN1 error code imbedded
6482 in a comment' is no longer necessary and it doesn't use .err files which
6483 have now been deleted. Also the error code call doesn't have to appear all
6484 on one line (which resulted in some large lines...).
6487 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
6490 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
6491 0 (which usually indicates a closed connection), but continue reading.
6494 *) Fix some race conditions.
6497 *) Add support for CRL distribution points extension. Add Certificate
6498 Policies and CRL distribution points documentation.
6501 *) Move the autogenerated header file parts to crypto/opensslconf.h.
6504 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
6505 8 of keying material. Merlin has also confirmed interop with this fix
6506 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
6507 [Merlin Hughes <merlin@baltimore.ie>]
6509 *) Fix lots of warnings.
6510 [Richard Levitte <levitte@stacken.kth.se>]
6512 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
6513 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
6514 [Richard Levitte <levitte@stacken.kth.se>]
6516 *) Fix problems with sizeof(long) == 8.
6517 [Andy Polyakov <appro@fy.chalmers.se>]
6519 *) Change functions to ANSI C.
6522 *) Fix typos in error codes.
6523 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
6525 *) Remove defunct assembler files from Configure.
6528 *) SPARC v8 assembler BIGNUM implementation.
6529 [Andy Polyakov <appro@fy.chalmers.se>]
6531 *) Support for Certificate Policies extension: both print and set.
6532 Various additions to support the r2i method this uses.
6535 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
6536 return a const string when you are expecting an allocated buffer.
6539 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
6540 types DirectoryString and DisplayText.
6543 *) Add code to allow r2i extensions to access the configuration database,
6544 add an LHASH database driver and add several ctx helper functions.
6547 *) Fix an evil bug in bn_expand2() which caused various BN functions to
6548 fail when they extended the size of a BIGNUM.
6551 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
6552 support typesafe stack.
6555 *) Fix typo in SSL_[gs]et_options().
6556 [Nils Frostberg <nils@medcom.se>]
6558 *) Delete various functions and files that belonged to the (now obsolete)
6559 old X509V3 handling code.
6562 *) New Configure option "rsaref".
6565 *) Don't auto-generate pem.h.
6568 *) Introduce type-safe ASN.1 SETs.
6571 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
6572 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
6574 *) Introduce type-safe STACKs. This will almost certainly break lots of code
6575 that links with OpenSSL (well at least cause lots of warnings), but fear
6576 not: the conversion is trivial, and it eliminates loads of evil casts. A
6577 few STACKed things have been converted already. Feel free to convert more.
6578 In the fullness of time, I'll do away with the STACK type altogether.
6581 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
6582 specified in <certfile> by updating the entry in the index.txt file.
6583 This way one no longer has to edit the index.txt file manually for
6584 revoking a certificate. The -revoke option does the gory details now.
6585 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
6587 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
6588 `-text' option at all and this way the `-noout -text' combination was
6589 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
6590 [Ralf S. Engelschall]
6592 *) Make sure a corresponding plain text error message exists for the
6593 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
6594 verify callback function determined that a certificate was revoked.
6595 [Ralf S. Engelschall]
6597 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
6598 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
6599 all available cipers including rc5, which was forgotten until now.
6600 In order to let the testing shell script know which algorithms
6601 are available, a new (up to now undocumented) command
6602 "openssl list-cipher-commands" is used.
6605 *) Bugfix: s_client occasionally would sleep in select() when
6606 it should have checked SSL_pending() first.
6609 *) New functions DSA_do_sign and DSA_do_verify to provide access to
6610 the raw DSA values prior to ASN.1 encoding.
6613 *) Tweaks to Configure
6614 [Niels Poppe <niels@netbox.org>]
6616 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
6620 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
6623 *) New config option to avoid instructions that are illegal on the 80386.
6624 The default code is faster, but requires at least a 486.
6627 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
6628 SSL2_SERVER_VERSION (not used at all) macros, which are now the
6629 same as SSL2_VERSION anyway.
6632 *) New "-showcerts" option for s_client.
6635 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
6636 application. Various cleanups and fixes.
6639 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
6640 modify error routines to work internally. Add error codes and PBE init
6641 to library startup routines.
6644 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
6645 packing functions to asn1 and evp. Changed function names and error
6646 codes along the way.
6649 *) PKCS12 integration: and so it begins... First of several patches to
6650 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
6651 objects to objects.h
6654 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
6655 and display support for Thawte strong extranet extension.
6658 *) Add LinuxPPC support.
6659 [Jeff Dubrule <igor@pobox.org>]
6661 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
6662 bn_div_words in alpha.s.
6663 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
6665 *) Make sure the RSA OAEP test is skipped under -DRSAref because
6666 OAEP isn't supported when OpenSSL is built with RSAref.
6667 [Ulf Moeller <ulf@fitug.de>]
6669 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
6670 so they no longer are missing under -DNOPROTO.
6671 [Soren S. Jorvang <soren@t.dk>]
6674 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
6676 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
6677 doesn't work when the session is reused. Coming soon!
6680 *) Fix a security hole, that allows sessions to be reused in the wrong
6681 context thus bypassing client cert protection! All software that uses
6682 client certs and session caches in multiple contexts NEEDS PATCHING to
6683 allow session reuse! A fuller solution is in the works.
6684 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
6686 *) Some more source tree cleanups (removed obsolete files
6687 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
6688 permission on "config" script to be executable) and a fix for the INSTALL
6690 [Ulf Moeller <ulf@fitug.de>]
6692 *) Remove some legacy and erroneous uses of malloc, free instead of
6694 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
6696 *) Make rsa_oaep_test return non-zero on error.
6697 [Ulf Moeller <ulf@fitug.de>]
6699 *) Add support for native Solaris shared libraries. Configure
6700 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
6701 if someone would make that last step automatic.
6702 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
6704 *) ctx_size was not built with the right compiler during "make links". Fixed.
6707 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
6708 except NULL ciphers". This means the default cipher list will no longer
6709 enable NULL ciphers. They need to be specifically enabled e.g. with
6710 the string "DEFAULT:eNULL".
6713 *) Fix to RSA private encryption routines: if p < q then it would
6714 occasionally produce an invalid result. This will only happen with
6715 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
6718 *) Be less restrictive and allow also `perl util/perlpath.pl
6719 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
6720 because this way one can also use an interpreter named `perl5' (which is
6721 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
6722 installed as `perl').
6723 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
6725 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
6726 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
6728 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
6729 advapi32.lib to Win32 build and change the pem test comparision
6730 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
6731 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
6732 and crypto/des/ede_cbcm_enc.c.
6735 *) DES quad checksum was broken on big-endian architectures. Fixed.
6738 *) Comment out two functions in bio.h that aren't implemented. Fix up the
6739 Win32 test batch file so it (might) work again. The Win32 test batch file
6740 is horrible: I feel ill....
6743 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
6744 in e_os.h. Audit of header files to check ANSI and non ANSI
6745 sections: 10 functions were absent from non ANSI section and not exported
6746 from Windows DLLs. Fixed up libeay.num for new functions.
6749 *) Make `openssl version' output lines consistent.
6750 [Ralf S. Engelschall]
6752 *) Fix Win32 symbol export lists for BIO functions: Added
6753 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
6754 to ms/libeay{16,32}.def.
6755 [Ralf S. Engelschall]
6757 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
6758 fine under Unix and passes some trivial tests I've now added. But the
6759 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
6760 added to make sure no one expects that this stuff really works in the
6761 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
6762 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
6764 [Ralf S. Engelschall]
6766 *) Fix the generation of two part addresses in perl.
6767 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
6769 *) Add config entry for Linux on MIPS.
6770 [John Tobey <jtobey@channel1.com>]
6772 *) Make links whenever Configure is run, unless we are on Windoze.
6775 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
6776 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
6780 *) Add a useful kludge to allow package maintainers to specify compiler and
6781 other platforms details on the command line without having to patch the
6782 Configure script everytime: One now can use ``perl Configure
6783 <id>:<details>'', i.e. platform ids are allowed to have details appended
6784 to them (seperated by colons). This is treated as there would be a static
6785 pre-configured entry in Configure's %table under key <id> with value
6786 <details> and ``perl Configure <id>'' is called. So, when you want to
6787 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
6788 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
6789 now, which overrides the FreeBSD-elf entry on-the-fly.
6790 [Ralf S. Engelschall]
6792 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
6795 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
6796 on the `perl Configure ...' command line. This way one can compile
6797 OpenSSL libraries with Position Independent Code (PIC) which is needed
6798 for linking it into DSOs.
6799 [Ralf S. Engelschall]
6801 *) Remarkably, export ciphers were totally broken and no-one had noticed!
6805 *) Cleaned up the LICENSE document: The official contact for any license
6806 questions now is the OpenSSL core team under openssl-core@openssl.org.
6807 And add a paragraph about the dual-license situation to make sure people
6808 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
6809 to the OpenSSL toolkit.
6810 [Ralf S. Engelschall]
6812 *) General source tree makefile cleanups: Made `making xxx in yyy...'
6813 display consistent in the source tree and replaced `/bin/rm' by `rm'.
6814 Additonally cleaned up the `make links' target: Remove unnecessary
6815 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
6816 to speed processing and no longer clutter the display with confusing
6817 stuff. Instead only the actually done links are displayed.
6818 [Ralf S. Engelschall]
6820 *) Permit null encryption ciphersuites, used for authentication only. It used
6821 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
6822 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
6826 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
6827 signed attributes when verifying signatures (this would break them),
6828 the detached data encoding was wrong and public keys obtained using
6829 X509_get_pubkey() weren't freed.
6832 *) Add text documentation for the BUFFER functions. Also added a work around
6833 to a Win95 console bug. This was triggered by the password read stuff: the
6834 last character typed gets carried over to the next fread(). If you were
6835 generating a new cert request using 'req' for example then the last
6836 character of the passphrase would be CR which would then enter the first
6840 *) Added the new `Includes OpenSSL Cryptography Software' button as
6841 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
6842 button and can be used by applications based on OpenSSL to show the
6843 relationship to the OpenSSL project.
6844 [Ralf S. Engelschall]
6846 *) Remove confusing variables in function signatures in files
6847 ssl/ssl_lib.c and ssl/ssl.h.
6848 [Lennart Bong <lob@kulthea.stacken.kth.se>]
6850 *) Don't install bss_file.c under PREFIX/include/
6851 [Lennart Bong <lob@kulthea.stacken.kth.se>]
6853 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
6854 functions that return function pointers and has support for NT specific
6855 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
6856 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
6857 unsigned to signed types: this was killing the Win32 compile.
6860 *) Add new certificate file to stack functions,
6861 SSL_add_dir_cert_subjects_to_stack() and
6862 SSL_add_file_cert_subjects_to_stack(). These largely supplant
6863 SSL_load_client_CA_file(), and can be used to add multiple certs easily
6864 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
6865 This means that Apache-SSL and similar packages don't have to mess around
6866 to add as many CAs as they want to the preferred list.
6869 *) Experiment with doxygen documentation. Currently only partially applied to
6871 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
6872 openssl.doxy as the configuration file.
6875 *) Get rid of remaining C++-style comments which strict C compilers hate.
6876 [Ralf S. Engelschall, pointed out by Carlos Amengual]
6878 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
6879 compiled in by default: it has problems with large keys.
6882 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
6883 DH private keys and/or callback functions which directly correspond to
6884 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
6885 is needed for applications which have to configure certificates on a
6886 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
6888 For the RSA certificate situation is makes no difference, but
6889 for the DSA certificate situation this fixes the "no shared cipher"
6890 problem where the OpenSSL cipher selection procedure failed because the
6891 temporary keys were not overtaken from the context and the API provided
6892 no way to reconfigure them.
6893 The new functions now let applications reconfigure the stuff and they
6894 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
6895 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
6896 non-public-API function ssl_cert_instantiate() is used as a helper
6897 function and also to reduce code redundancy inside ssl_rsa.c.
6898 [Ralf S. Engelschall]
6900 *) Move s_server -dcert and -dkey options out of the undocumented feature
6901 area because they are useful for the DSA situation and should be
6902 recognized by the users.
6903 [Ralf S. Engelschall]
6905 *) Fix the cipher decision scheme for export ciphers: the export bits are
6906 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
6907 SSL_EXP_MASK. So, the original variable has to be used instead of the
6908 already masked variable.
6909 [Richard Levitte <levitte@stacken.kth.se>]
6911 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
6912 [Richard Levitte <levitte@stacken.kth.se>]
6914 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
6915 from `int' to `unsigned int' because it's a length and initialized by
6916 EVP_DigestFinal() which expects an `unsigned int *'.
6917 [Richard Levitte <levitte@stacken.kth.se>]
6919 *) Don't hard-code path to Perl interpreter on shebang line of Configure
6920 script. Instead use the usual Shell->Perl transition trick.
6921 [Ralf S. Engelschall]
6923 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
6924 (in addition to RSA certificates) to match the behaviour of `openssl dsa
6925 -noout -modulus' as it's already the case for `openssl rsa -noout
6926 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
6927 currently the public key is printed (a decision which was already done by
6928 `openssl dsa -modulus' in the past) which serves a similar purpose.
6929 Additionally the NO_RSA no longer completely removes the whole -modulus
6930 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
6932 [Ralf S. Engelschall]
6934 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
6935 BIO. See the source (crypto/evp/bio_ok.c) for more info.
6936 [Arne Ansper <arne@ats.cyber.ee>]
6938 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
6939 to be added. Now both 'req' and 'ca' can use new objects defined in the
6943 *) Add cool BIO that does syslog (or event log on NT).
6944 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
6946 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
6947 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
6948 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
6949 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
6952 *) Add preliminary config info for new extension code.
6955 *) Make RSA_NO_PADDING really use no padding.
6956 [Ulf Moeller <ulf@fitug.de>]
6958 *) Generate errors when private/public key check is done.
6961 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
6962 for some CRL extensions and new objects added.
6965 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
6966 key usage extension and fuller support for authority key id.
6969 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
6970 padding method for RSA, which is recommended for new applications in PKCS
6971 #1 v2.0 (RFC 2437, October 1998).
6972 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
6973 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
6974 against Bleichbacher's attack on RSA.
6975 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
6978 *) Updates to the new SSL compression code
6979 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
6981 *) Fix so that the version number in the master secret, when passed
6982 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
6983 (because the server will not accept higher), that the version number
6984 is 0x03,0x01, not 0x03,0x00
6985 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
6987 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
6988 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
6989 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
6992 *) Support for RAW extensions where an arbitrary extension can be
6993 created by including its DER encoding. See apps/openssl.cnf for
6997 *) Make sure latest Perl versions don't interpret some generated C array
6998 code as Perl array code in the crypto/err/err_genc.pl script.
6999 [Lars Weber <3weber@informatik.uni-hamburg.de>]
7001 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
7002 not many people have the assembler. Various Win32 compilation fixes and
7003 update to the INSTALL.W32 file with (hopefully) more accurate Win32
7007 *) Modify configure script 'Configure' to automatically create crypto/date.h
7008 file under Win32 and also build pem.h from pem.org. New script
7009 util/mkfiles.pl to create the MINFO file on environments that can't do a
7010 'make files': perl util/mkfiles.pl >MINFO should work.
7013 *) Major rework of DES function declarations, in the pursuit of correctness
7014 and purity. As a result, many evil casts evaporated, and some weirdness,
7015 too. You may find this causes warnings in your code. Zapping your evil
7016 casts will probably fix them. Mostly.
7019 *) Fix for a typo in asn1.h. Bug fix to object creation script
7020 obj_dat.pl. It considered a zero in an object definition to mean
7021 "end of object": none of the objects in objects.h have any zeros
7022 so it wasn't spotted.
7023 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
7025 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
7026 Masking (CBCM). In the absence of test vectors, the best I have been able
7027 to do is check that the decrypt undoes the encrypt, so far. Send me test
7028 vectors if you have them.
7031 *) Correct calculation of key length for export ciphers (too much space was
7032 allocated for null ciphers). This has not been tested!
7035 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
7036 message is now correct (it understands "crypto" and "ssl" on its
7037 command line). There is also now an "update" option. This will update
7038 the util/ssleay.num and util/libeay.num files with any new functions.
7040 perl util/mkdef.pl crypto ssl update
7041 it will update them.
7044 *) Overhauled the Perl interface (perl/*):
7045 - ported BN stuff to OpenSSL's different BN library
7046 - made the perl/ source tree CVS-aware
7047 - renamed the package from SSLeay to OpenSSL (the files still contain
7048 their history because I've copied them in the repository)
7049 - removed obsolete files (the test scripts will be replaced
7050 by better Test::Harness variants in the future)
7051 [Ralf S. Engelschall]
7053 *) First cut for a very conservative source tree cleanup:
7054 1. merge various obsolete readme texts into doc/ssleay.txt
7055 where we collect the old documents and readme texts.
7056 2. remove the first part of files where I'm already sure that we no
7057 longer need them because of three reasons: either they are just temporary
7058 files which were left by Eric or they are preserved original files where
7059 I've verified that the diff is also available in the CVS via "cvs diff
7060 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
7061 the crypto/md/ stuff).
7062 [Ralf S. Engelschall]
7064 *) More extension code. Incomplete support for subject and issuer alt
7065 name, issuer and authority key id. Change the i2v function parameters
7066 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
7067 what that's for :-) Fix to ASN1 macro which messed up
7068 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
7071 *) Preliminary support for ENUMERATED type. This is largely copied from the
7075 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
7076 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7078 *) Make sure `make rehash' target really finds the `openssl' program.
7079 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7081 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
7082 like to hear about it if this slows down other processors.
7085 *) Add CygWin32 platform information to Configure script.
7086 [Alan Batie <batie@aahz.jf.intel.com>]
7088 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
7089 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
7091 *) New program nseq to manipulate netscape certificate sequences
7094 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
7098 *) Fixes to BN code. Previously the default was to define BN_RECURSION
7099 but the BN code had some problems that would cause failures when
7100 doing certificate verification and some other functions.
7101 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7103 *) Add ASN1 and PEM code to support netscape certificate sequences.
7106 *) Add ASN1 and PEM code to support netscape certificate sequences.
7109 *) Add several PKIX and private extended key usage OIDs.
7112 *) Modify the 'ca' program to handle the new extension code. Modify
7113 openssl.cnf for new extension format, add comments.
7116 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
7117 and add a sample to openssl.cnf so req -x509 now adds appropriate
7121 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
7122 error code, add initial support to X509_print() and x509 application.
7125 *) Takes a deep breath and start addding X509 V3 extension support code. Add
7126 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
7127 stuff is currently isolated and isn't even compiled yet.
7130 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
7131 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
7132 Removed the versions check from X509 routines when loading extensions:
7133 this allows certain broken certificates that don't set the version
7134 properly to be processed.
7137 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
7138 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
7139 can still be regenerated with "make depend".
7142 *) Spelling mistake in C version of CAST-128.
7143 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
7145 *) Changes to the error generation code. The perl script err-code.pl
7146 now reads in the old error codes and retains the old numbers, only
7147 adding new ones if necessary. It also only changes the .err files if new
7148 codes are added. The makefiles have been modified to only insert errors
7149 when needed (to avoid needlessly modifying header files). This is done
7150 by only inserting errors if the .err file is newer than the auto generated
7151 C file. To rebuild all the error codes from scratch (the old behaviour)
7152 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
7153 or delete all the .err files.
7156 *) CAST-128 was incorrectly implemented for short keys. The C version has
7157 been fixed, but is untested. The assembler versions are also fixed, but
7158 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
7159 to regenerate it if needed.
7160 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
7161 Hagino <itojun@kame.net>]
7163 *) File was opened incorrectly in randfile.c.
7164 [Ulf Möller <ulf@fitug.de>]
7166 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
7167 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
7168 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
7169 al: it's just almost always a UTCTime. Note this patch adds new error
7170 codes so do a "make errors" if there are problems.
7173 *) Correct Linux 1 recognition in config.
7174 [Ulf Möller <ulf@fitug.de>]
7176 *) Remove pointless MD5 hash when using DSA keys in ca.
7177 [Anonymous <nobody@replay.com>]
7179 *) Generate an error if given an empty string as a cert directory. Also
7180 generate an error if handed NULL (previously returned 0 to indicate an
7181 error, but didn't set one).
7182 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
7184 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
7187 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
7188 parameters. This was causing a warning which killed off the Win32 compile.
7191 *) Remove C++ style comments from crypto/bn/bn_local.h.
7192 [Neil Costigan <neil.costigan@celocom.com>]
7194 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
7195 based on a text string, looking up short and long names and finally
7196 "dot" format. The "dot" format stuff didn't work. Added new function
7197 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
7198 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
7199 OID is not part of the table.
7202 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
7203 X509_LOOKUP_by_alias().
7206 *) Sort openssl functions by name.
7209 *) Get the gendsa program working (hopefully) and add it to app list. Remove
7210 encryption from sample DSA keys (in case anyone is interested the password
7214 *) Make _all_ *_free functions accept a NULL pointer.
7215 [Frans Heymans <fheymans@isaserver.be>]
7217 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
7219 [Anonymous <nobody@replay.com>]
7221 *) s_server should send the CAfile as acceptable CAs, not its own cert.
7222 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
7224 *) Don't blow it for numeric -newkey arguments to apps/req.
7225 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
7227 *) Temp key "for export" tests were wrong in s3_srvr.c.
7228 [Anonymous <nobody@replay.com>]
7230 *) Add prototype for temp key callback functions
7231 SSL_CTX_set_tmp_{rsa,dh}_callback().
7234 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
7235 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
7238 *) X509_name_add_entry() freed the wrong thing after an error.
7239 [Arne Ansper <arne@ats.cyber.ee>]
7241 *) rsa_eay.c would attempt to free a NULL context.
7242 [Arne Ansper <arne@ats.cyber.ee>]
7244 *) BIO_s_socket() had a broken should_retry() on Windoze.
7245 [Arne Ansper <arne@ats.cyber.ee>]
7247 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
7248 [Arne Ansper <arne@ats.cyber.ee>]
7250 *) Make sure the already existing X509_STORE->depth variable is initialized
7251 in X509_STORE_new(), but document the fact that this variable is still
7252 unused in the certificate verification process.
7253 [Ralf S. Engelschall]
7255 *) Fix the various library and apps files to free up pkeys obtained from
7256 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
7259 *) Fix reference counting in X509_PUBKEY_get(). This makes
7260 demos/maurice/example2.c work, amongst others, probably.
7261 [Steve Henson and Ben Laurie]
7263 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
7264 `openssl' and second, the shortcut symlinks for the `openssl <command>'
7265 are no longer created. This way we have a single and consistent command
7266 line interface `openssl <command>', similar to `cvs <command>'.
7267 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
7269 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
7270 BIT STRING wrapper always have zero unused bits.
7273 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
7276 *) Make the top-level INSTALL documentation easier to understand.
7279 *) Makefiles updated to exit if an error occurs in a sub-directory
7280 make (including if user presses ^C) [Paul Sutton]
7282 *) Make Montgomery context stuff explicit in RSA data structure.
7285 *) Fix build order of pem and err to allow for generated pem.h.
7288 *) Fix renumbering bug in X509_NAME_delete_entry().
7291 *) Enhanced the err-ins.pl script so it makes the error library number
7292 global and can add a library name. This is needed for external ASN1 and
7293 other error libraries.
7296 *) Fixed sk_insert which never worked properly.
7299 *) Fix ASN1 macros so they can handle indefinite length construted
7300 EXPLICIT tags. Some non standard certificates use these: they can now
7304 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
7305 into a single doc/ssleay.txt bundle. This way the information is still
7306 preserved but no longer messes up this directory. Now it's new room for
7307 the new set of documenation files.
7308 [Ralf S. Engelschall]
7310 *) SETs were incorrectly DER encoded. This was a major pain, because they
7311 shared code with SEQUENCEs, which aren't coded the same. This means that
7312 almost everything to do with SETs or SEQUENCEs has either changed name or
7313 number of arguments.
7314 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
7316 *) Fix test data to work with the above.
7319 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
7320 was already fixed by Eric for 0.9.1 it seems.
7321 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
7323 *) Autodetect FreeBSD3.
7326 *) Fix various bugs in Configure. This affects the following platforms:
7330 unixware-2.0-pentium
7334 *) Eliminate generated files from CVS. Reorder tests to regenerate files
7335 before they are needed.
7338 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
7342 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
7344 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
7345 changed SSLeay to OpenSSL in version strings.
7346 [Ralf S. Engelschall]
7348 *) Some fixups to the top-level documents.
7351 *) Fixed the nasty bug where rsaref.h was not found under compile-time
7352 because the symlink to include/ was missing.
7353 [Ralf S. Engelschall]
7355 *) Incorporated the popular no-RSA/DSA-only patches
7356 which allow to compile a RSA-free SSLeay.
7357 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
7359 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
7360 when "ssleay" is still not found.
7361 [Ralf S. Engelschall]
7363 *) Added more platforms to Configure: Cray T3E, HPUX 11,
7364 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
7366 *) Updated the README file.
7367 [Ralf S. Engelschall]
7369 *) Added various .cvsignore files in the CVS repository subdirs
7370 to make a "cvs update" really silent.
7371 [Ralf S. Engelschall]
7373 *) Recompiled the error-definition header files and added
7374 missing symbols to the Win32 linker tables.
7375 [Ralf S. Engelschall]
7377 *) Cleaned up the top-level documents;
7378 o new files: CHANGES and LICENSE
7379 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
7380 o merged COPYRIGHT into LICENSE
7381 o removed obsolete TODO file
7382 o renamed MICROSOFT to INSTALL.W32
7383 [Ralf S. Engelschall]
7385 *) Removed dummy files from the 0.9.1b source tree:
7386 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
7387 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
7388 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
7389 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
7390 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
7391 [Ralf S. Engelschall]
7393 *) Added various platform portability fixes.
7396 *) The Genesis of the OpenSSL rpject:
7397 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
7398 Young and Tim J. Hudson created while they were working for C2Net until
7400 [The OpenSSL Project]
7403 Changes between 0.9.0b and 0.9.1b [not released]
7405 *) Updated a few CA certificates under certs/
7408 *) Changed some BIGNUM api stuff.
7411 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
7412 DGUX x86, Linux Alpha, etc.
7415 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
7416 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
7420 *) Add -strparse option to asn1pars program which parses nested
7422 [Dr Stephen Henson <shenson@bigfoot.com>]
7424 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
7427 *) DSA fix for "ca" program.
7430 *) Added "-genkey" option to "dsaparam" program.
7433 *) Added RIPE MD160 (rmd160) message digest.
7436 *) Added -a (all) option to "ssleay version" command.
7439 *) Added PLATFORM define which is the id given to Configure.
7442 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
7445 *) Extended the ASN.1 parser routines.
7448 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
7451 *) Added a BN_CTX to the BN library.
7454 *) Fixed the weak key values in DES library
7457 *) Changed API in EVP library for cipher aliases.
7460 *) Added support for RC2/64bit cipher.
7463 *) Converted the lhash library to the crypto/mem.c functions.
7466 *) Added more recognized ASN.1 object ids.
7469 *) Added more RSA padding checks for SSL/TLS.
7472 *) Added BIO proxy/filter functionality.
7475 *) Added extra_certs to SSL_CTX which can be used
7476 send extra CA certificates to the client in the CA cert chain sending
7477 process. It can be configured with SSL_CTX_add_extra_chain_cert().
7480 *) Now Fortezza is denied in the authentication phase because
7481 this is key exchange mechanism is not supported by SSLeay at all.
7484 *) Additional PKCS1 checks.
7487 *) Support the string "TLSv1" for all TLS v1 ciphers.
7490 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
7491 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
7494 *) Fixed a few memory leaks.
7497 *) Fixed various code and comment typos.
7500 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
7501 bytes sent in the client random.
7502 [Edward Bishop <ebishop@spyglass.com>]