5 Changes between 0.9.7 and 0.9.8 [xx XXX 2002]
7 *) Extend the BIGNUM API by creating new macros that behave like
10 void BN_set_sign(BIGNUM *a, int neg);
11 int BN_get_sign(const BIGNUM *a);
13 and avoid the need to access 'a->neg' directly in applications.
14 [Nils Larsch <nla@trustcenter.de>]
16 *) Implement fast modular reduction for pseudo-Mersenne primes
17 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
18 EC_GROUP_new_curve_GFp() will now automatically use this
20 [Nils Larsch <nla@trustcenter.de>]
22 *) Add new lock type (CRYPTO_LOCK_BN).
25 *) Change the ENGINE framework to automatically load engines
26 dynamically from specific directories unless they could be
27 found to already be built in or loaded. Move all the
28 current engines except for the cryptodev one to a new
30 The engines in engines/ are built as shared libraries if
31 the "shared" options was given to ./Configure or ./config.
32 Otherwise, they are inserted in libcrypto.a.
33 /usr/local/ssl/engines is the default directory for dynamic
34 engines, but that can be overriden at configure time through
35 the usual use of --prefix and/or --openssldir, and at run
36 time with the environment variable OPENSSL_ENGINES.
37 [Geoff Thorpe and Richard Levitte]
39 *) Add Makefile.shared, a helper makefile to build shared
40 libraries. Addapt Makefile.org.
43 *) Add version info to Win32 DLLs.
44 [Peter 'Luna' Runestig" <peter@runestig.com>]
46 *) Add new 'medium level' PKCS#12 API. Certificates and keys
47 can be added using this API to created arbitrary PKCS#12
48 files while avoiding the low level API.
50 New options to PKCS12_create(), key or cert can be NULL and
51 will then be omitted from the output file. The encryption
52 algorithm NIDs can be set to -1 for no encryption, the mac
53 iteration count can be set to 0 to omit the mac.
55 Enhance pkcs12 utility by making the -nokeys and -nocerts
56 options work when creating a PKCS#12 file. New option -nomac
57 to omit the mac, NONE can be set for an encryption algorithm.
58 New code is modified to use the enhanced PKCS12_create()
59 instead of the low level API.
62 *) Extend ASN1 encoder to support indefinite length constructed
63 encoding. This can output sequences tags and octet strings in
64 this form. Modify pk7_asn1.c to support indefinite length
65 encoding. This is experimental and needs additional code to
66 be useful, such as an ASN1 bio and some enhanced streaming
69 Extend template encode functionality so that tagging is passed
70 down to the template encoder.
73 *) Let 'openssl req' fail if an argument to '-newkey' is not
74 recognized instead of using RSA as a default.
77 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
78 As these are not official, they are not included in "ALL";
79 the "ECCdraft" ciphersuite group alias can be used to select them.
80 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
82 *) Add ECDH engine support.
83 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
85 *) Add ECDH in new directory crypto/ecdh/.
86 TODO: more general interface (return x coordinate, not its hash)
87 TODO: bug: pad x with leading zeros if necessary
88 [Douglas Stebila (Sun Microsystems Laboratories)]
90 *) Let BN_rand_range() abort with an error after 100 iterations
91 without success (which indicates a broken PRNG).
94 *) Change BN_mod_sqrt() so that it verifies that the input value
95 is really the square of the return value. (Previously,
96 BN_mod_sqrt would show GIGO behaviour.)
99 *) Add named elliptic curves over binary fields from X9.62, SECG,
100 and WAP/WTLS; add OIDs that were still missing.
102 [Sheueling Chang Shantz and Douglas Stebila
103 (Sun Microsystems Laboratories)]
105 *) Extend the EC library for elliptic curves over binary fields
106 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
109 EC_GF2m_simple_method
113 EC_GROUP_new_curve_GF2m
114 EC_GROUP_set_curve_GF2m
115 EC_GROUP_get_curve_GF2m
116 EC_POINT_set_affine_coordinates_GF2m
117 EC_POINT_get_affine_coordinates_GF2m
118 EC_POINT_set_compressed_coordinates_GF2m
120 Point compression for binary fields is disabled by default for
121 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
124 As binary polynomials are represented as BIGNUMs, various members
125 of the EC_GROUP and EC_POINT data structures can be shared
126 between the implementations for prime fields and binary fields;
127 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
128 are essentially identical to their ..._GFp counterparts.
129 (For simplicity, the '..._GFp' prefix has been dropped from
130 various internal method names.)
132 An internal 'field_div' method (similar to 'field_mul' and
133 'field_sqr') has been added; this is used only for binary fields.
135 [Sheueling Chang Shantz and Douglas Stebila
136 (Sun Microsystems Laboratories)]
138 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
139 through methods ('mul', 'precompute_mult').
141 The generic implementations (now internally called 'ec_wNAF_mul'
142 and 'ec_wNAF_precomputed_mult') remain the default if these
143 methods are undefined.
145 [Sheueling Chang Shantz and Douglas Stebila
146 (Sun Microsystems Laboratories)]
148 *) New function EC_GROUP_get_degree, which is defined through
149 EC_METHOD. For curves over prime fields, this returns the bit
150 length of the modulus.
152 [Sheueling Chang Shantz and Douglas Stebila
153 (Sun Microsystems Laboratories)]
155 *) New functions EC_GROUP_dup, EC_POINT_dup.
156 (These simply call ..._new and ..._copy).
158 [Sheueling Chang Shantz and Douglas Stebila
159 (Sun Microsystems Laboratories)]
161 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
162 Polynomials are represented as BIGNUMs (where the sign bit is not
163 used) in the following functions [macros]:
166 BN_GF2m_sub [= BN_GF2m_add]
167 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
168 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
169 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
171 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
172 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
173 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
174 BN_GF2m_cmp [= BN_ucmp]
176 (Note that only the 'mod' functions are actually for fields GF(2^m).
177 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
179 For some functions, an the irreducible polynomial defining a
180 field can be given as an 'unsigned int[]' with strictly
181 decreasing elements giving the indices of those bits that are set;
182 i.e., p[] represents the polynomial
183 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
185 p[0] > p[1] > ... > p[k] = 0.
186 This applies to the following functions:
191 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
192 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
195 BN_GF2m_mod_solve_quad_arr
199 Conversion can be performed by the following functions:
204 bntest.c has additional tests for binary polynomial arithmetic.
206 Two implementations for BN_GF2m_mod_div() are available.
207 The default algorithm simply uses BN_GF2m_mod_inv() and
208 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
209 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
210 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
212 [Sheueling Chang Shantz and Douglas Stebila
213 (Sun Microsystems Laboratories)]
215 *) Add new error code 'ERR_R_DISABLED' that can be used when some
216 functionality is disabled at compile-time.
217 [Douglas Stebila <douglas.stebila@sun.com>]
219 *) Change default behaviour of 'openssl asn1parse' so that more
220 information is visible when viewing, e.g., a certificate:
222 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
223 mode the content of non-printable OCTET STRINGs is output in a
224 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
225 avoid the appearance of a printable string.
226 [Nils Larsch <nla@trustcenter.de>]
228 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
230 EC_GROUP_set_asn1_flag()
231 EC_GROUP_get_asn1_flag()
232 EC_GROUP_set_point_conversion_form()
233 EC_GROUP_get_point_conversion_form()
234 These control ASN1 encoding details:
235 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
236 has been set to OPENSSL_EC_NAMED_CURVE.
237 - Points are encoded in uncompressed form by default; options for
238 asn1_for are as for point2oct, namely
239 POINT_CONVERSION_COMPRESSED
240 POINT_CONVERSION_UNCOMPRESSED
241 POINT_CONVERSION_HYBRID
243 Also add 'seed' and 'seed_len' members to EC_GROUP with access
247 EC_GROUP_get_seed_len()
248 This is used only for ASN1 purposes (so far).
249 [Nils Larsch <nla@trustcenter.de>]
251 *) Add 'field_type' member to EC_METHOD, which holds the NID
252 of the appropriate field type OID. The new function
253 EC_METHOD_get_field_type() returns this value.
254 [Nils Larsch <nla@trustcenter.de>]
261 providing useful interfaces to EC_POINT_point2oct() and
262 EC_POINT_oct2point().
263 [Nils Larsch <nla@trustcenter.de>]
265 *) Change internals of the EC library so that the functions
266 EC_GROUP_set_generator()
267 EC_GROUP_get_generator()
269 EC_GROUP_get_cofactor()
270 are implemented directly in crypto/ec/ec_lib.c and not dispatched
271 to methods, which would lead to unnecessary code duplication when
272 adding different types of curves.
273 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
275 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
276 arithmetic, and such that modified wNAFs are generated
277 (which avoid length expansion in many cases).
280 *) Add a function EC_GROUP_check_discriminant() (defined via
281 EC_METHOD) that verifies that the curve discriminant is non-zero.
283 Add a function EC_GROUP_check() that makes some sanity tests
284 on a EC_GROUP, its generator and order. This includes
285 EC_GROUP_check_discriminant().
286 [Nils Larsch <nla@trustcenter.de>]
288 *) Add ECDSA in new directory crypto/ecdsa/.
290 Add applications 'openssl ecparam' and 'openssl ecdsa'
291 (these are based on 'openssl dsaparam' and 'openssl dsa').
293 ECDSA support is also included in various other files across the
294 library. Most notably,
295 - 'openssl req' now has a '-newkey ecdsa:file' option;
296 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
297 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
298 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
299 them suitable for ECDSA where domain parameters must be
300 extracted before the specific public key;
301 - ECDSA engine support has been added.
302 [Nils Larsch <nla@trustcenter.de>]
304 *) Include some named elliptic curves, and add OIDs from X9.62,
305 SECG, and WAP/WTLS. Each curve can be obtained from the new
307 EC_GROUP_new_by_nid(),
308 and the list of available named curves can be obtained with
309 EC_get_builtin_curves().
310 Also add a 'curve_name' member to EC_GROUP objects, which can be
314 [Nils Larsch <nla@trustcenter.de, Bodo Moeller]
316 Changes between 0.9.6h and 0.9.7 [XX xxx 2002]
318 *) Change from security patch (see 0.9.6e below) that did not affect
319 the 0.9.6 release series:
321 Remote buffer overflow in SSL3 protocol - an attacker could
322 supply an oversized master key in Kerberos-enabled versions.
326 *) Change the SSL kerb5 codes to match RFC 2712.
329 *) Make -nameopt work fully for req and add -reqopt switch.
330 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
332 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
333 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
335 *) Make sure tests can be performed even if the corresponding algorithms
336 have been removed entirely. This was also the last step to make
337 OpenSSL compilable with DJGPP under all reasonable conditions.
338 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
340 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
341 to allow version independent disabling of normally unselected ciphers,
342 which may be activated as a side-effect of selecting a single cipher.
344 (E.g., cipher list string "RSA" enables ciphersuites that are left
345 out of "ALL" because they do not provide symmetric encryption.
346 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
347 [Lutz Jaenicke, Bodo Moeller]
349 *) Add appropriate support for separate platform-dependent build
350 directories. The recommended way to make a platform-dependent
351 build directory is the following (tested on Linux), maybe with
354 # Place yourself outside of the OpenSSL source tree. In
355 # this example, the environment variable OPENSSL_SOURCE
356 # is assumed to contain the absolute OpenSSL source directory.
357 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
358 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
359 (cd $OPENSSL_SOURCE; find . -type f -o -type l) | while read F; do
360 mkdir -p `dirname $F`
361 ln -s $OPENSSL_SOURCE/$F $F
364 To be absolutely sure not to disturb the source tree, a "make clean"
365 is a good thing. If it isn't successfull, don't worry about it,
366 it probably means the source directory is very clean.
369 *) Make sure any ENGINE control commands make local copies of string
370 pointers passed to them whenever necessary. Otherwise it is possible
371 the caller may have overwritten (or deallocated) the original string
372 data when a later ENGINE operation tries to use the stored values.
373 [Götz Babin-Ebell <babinebell@trustcenter.de>]
375 *) Improve diagnostics in file reading and command-line digests.
376 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
378 *) Add AES modes CFB and OFB to the object database. Correct an
379 error in AES-CFB decryption.
382 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
383 allows existing EVP_CIPHER_CTX structures to be reused after
384 calling EVP_*Final(). This behaviour is used by encryption
385 BIOs and some applications. This has the side effect that
386 applications must explicitly clean up cipher contexts with
387 EVP_CIPHER_CTX_cleanup() or they will leak memory.
390 *) Check the values of dna and dnb in bn_mul_recursive before calling
391 bn_mul_comba (a non zero value means the a or b arrays do not contain
392 n2 elements) and fallback to bn_mul_normal if either is not zero.
395 *) Fix escaping of non-ASCII characters when using the -subj option
396 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
399 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
400 form for "surname", serialNumber has no short form.
401 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
402 therefore remove "mail" short name for "internet 7".
403 The OID for unique identifiers in X509 certificates is
404 x500UniqueIdentifier, not uniqueIdentifier.
405 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
408 *) Add an "init" command to the ENGINE config module and auto initialize
409 ENGINEs. Without any "init" command the ENGINE will be initialized
410 after all ctrl commands have been executed on it. If init=1 the
411 ENGINE is initailized at that point (ctrls before that point are run
412 on the uninitialized ENGINE and after on the initialized one). If
413 init=0 then the ENGINE will not be iniatialized at all.
416 *) Fix the 'app_verify_callback' interface so that the user-defined
417 argument is actually passed to the callback: In the
418 SSL_CTX_set_cert_verify_callback() prototype, the callback
419 declaration has been changed from
422 int (*cb)(X509_STORE_CTX *,void *);
423 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
424 i=s->ctx->app_verify_callback(&ctx)
425 has been changed into
426 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
428 To update applications using SSL_CTX_set_cert_verify_callback(),
429 a dummy argument can be added to their callback functions.
430 [D. K. Smetters <smetters@parc.xerox.com>]
432 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
433 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
435 *) Add and OPENSSL_LOAD_CONF define which will cause
436 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
437 This allows older applications to transparently support certain
438 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
439 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
440 load the config file and OPENSSL_add_all_algorithms_conf() which will
441 always load it have also been added.
444 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
445 Adjust NIDs and EVP layer.
446 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
448 *) Config modules support in openssl utility.
450 Most commands now load modules from the config file,
451 though in a few (such as version) this isn't done
452 because it couldn't be used for anything.
454 In the case of ca and req the config file used is
455 the same as the utility itself: that is the -config
456 command line option can be used to specify an
460 *) Move default behaviour from OPENSSL_config(). If appname is NULL
461 use "openssl_conf" if filename is NULL use default openssl config file.
464 *) Add an argument to OPENSSL_config() to allow the use of an alternative
465 config section name. Add a new flag to tolerate a missing config file
466 and move code to CONF_modules_load_file().
469 *) Support for crypto accelerator cards from Accelerated Encryption
470 Processing, www.aep.ie. (Use engine 'aep')
471 The support was copied from 0.9.6c [engine] and adapted/corrected
472 to work with the new engine framework.
473 [AEP Inc. and Richard Levitte]
475 *) Support for SureWare crypto accelerator cards from Baltimore
476 Technologies. (Use engine 'sureware')
477 The support was copied from 0.9.6c [engine] and adapted
478 to work with the new engine framework.
481 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
482 make the newer ENGINE framework commands for the CHIL engine work.
483 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
485 *) Make it possible to produce shared libraries on ReliantUNIX.
486 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
488 *) Add the configuration target debug-linux-ppro.
489 Make 'openssl rsa' use the general key loading routines
490 implemented in apps.c, and make those routines able to
491 handle the key format FORMAT_NETSCAPE and the variant
493 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
495 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
496 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
498 *) Add -keyform to rsautl, and document -engine.
499 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
501 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
502 BIO_R_NO_SUCH_FILE error code rather than the generic
503 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
508 ERR_peek_last_error_line
509 ERR_peek_last_error_line_data.
513 ERR_peek_error_line_data,
514 but report on the latest error recorded rather than the first one
515 still in the error queue.
516 [Ben Laurie, Bodo Moeller]
518 *) default_algorithms option in ENGINE config module. This allows things
520 default_algorithms = ALL
521 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
524 *) Prelminary ENGINE config module.
527 *) New experimental application configuration code.
530 *) Change the AES code to follow the same name structure as all other
531 symmetric ciphers, and behave the same way. Move everything to
532 the directory crypto/aes, thereby obsoleting crypto/rijndael.
533 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
535 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
536 [Ben Laurie and Theo de Raadt]
538 *) Add option to output public keys in req command.
539 [Massimiliano Pala madwolf@openca.org]
541 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
542 (up to about 10% better than before for P-192 and P-224).
545 *) New functions/macros
547 SSL_CTX_set_msg_callback(ctx, cb)
548 SSL_CTX_set_msg_callback_arg(ctx, arg)
549 SSL_set_msg_callback(ssl, cb)
550 SSL_set_msg_callback_arg(ssl, arg)
552 to request calling a callback function
554 void cb(int write_p, int version, int content_type,
555 const void *buf, size_t len, SSL *ssl, void *arg)
557 whenever a protocol message has been completely received
558 (write_p == 0) or sent (write_p == 1). Here 'version' is the
559 protocol version according to which the SSL library interprets
560 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
561 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
562 the content type as defined in the SSL 3.0/TLS 1.0 protocol
563 specification (change_cipher_spec(20), alert(21), handshake(22)).
564 'buf' and 'len' point to the actual message, 'ssl' to the
565 SSL object, and 'arg' is the application-defined value set by
566 SSL[_CTX]_set_msg_callback_arg().
568 'openssl s_client' and 'openssl s_server' have new '-msg' options
569 to enable a callback that displays all protocol messages.
572 *) Change the shared library support so shared libraries are built as
573 soon as the corresponding static library is finished, and thereby get
574 openssl and the test programs linked against the shared library.
575 This still only happens when the keyword "shard" has been given to
576 the configuration scripts.
578 NOTE: shared library support is still an experimental thing, and
579 backward binary compatibility is still not guaranteed.
580 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
582 *) Add support for Subject Information Access extension.
583 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
585 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
586 additional bytes when new memory had to be allocated, not just
587 when reusing an existing buffer.
590 *) New command line and configuration option 'utf8' for the req command.
591 This allows field values to be specified as UTF8 strings.
594 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
595 runs for the former and machine-readable output for the latter.
598 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
599 of the e-mail address in the DN (i.e., it will go into a certificate
600 extension only). The new configuration file option 'email_in_dn = no'
602 [Massimiliano Pala madwolf@openca.org]
604 *) Change all functions with names starting with des_ to be starting
605 with DES_ instead. Add wrappers that are compatible with libdes,
606 but are named _ossl_old_des_*. Finally, add macros that map the
607 des_* symbols to the corresponding _ossl_old_des_* if libdes
608 compatibility is desired. If OpenSSL 0.9.6c compatibility is
609 desired, the des_* symbols will be mapped to DES_*, with one
612 Since we provide two compatibility mappings, the user needs to
613 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
614 compatibility is desired. The default (i.e., when that macro
615 isn't defined) is OpenSSL 0.9.6c compatibility.
617 There are also macros that enable and disable the support of old
618 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
619 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
620 are defined, the default will apply: to support the old des routines.
622 In either case, one must include openssl/des.h to get the correct
623 definitions. Do not try to just include openssl/des_old.h, that
626 NOTE: This is a major break of an old API into a new one. Software
627 authors are encouraged to switch to the DES_ style functions. Some
628 time in the future, des_old.h and the libdes compatibility functions
629 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
630 default), and then completely removed.
633 *) Test for certificates which contain unsupported critical extensions.
634 If such a certificate is found during a verify operation it is
635 rejected by default: this behaviour can be overridden by either
636 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
637 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
638 X509_supported_extension() has also been added which returns 1 if a
639 particular extension is supported.
642 *) Modify the behaviour of EVP cipher functions in similar way to digests
643 to retain compatibility with existing code.
646 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
647 compatibility with existing code. In particular the 'ctx' parameter does
648 not have to be to be initialized before the call to EVP_DigestInit() and
649 it is tidied up after a call to EVP_DigestFinal(). New function
650 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
651 EVP_MD_CTX_copy() changed to not require the destination to be
652 initialized valid and new function EVP_MD_CTX_copy_ex() added which
653 requires the destination to be valid.
655 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
656 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
659 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
660 so that complete 'Handshake' protocol structures are kept in memory
661 instead of overwriting 'msg_type' and 'length' with 'body' data.
664 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
665 [Massimo Santin via Richard Levitte]
667 *) Major restructuring to the underlying ENGINE code. This includes
668 reduction of linker bloat, separation of pure "ENGINE" manipulation
669 (initialisation, etc) from functionality dealing with implementations
670 of specific crypto iterfaces. This change also introduces integrated
671 support for symmetric ciphers and digest implementations - so ENGINEs
672 can now accelerate these by providing EVP_CIPHER and EVP_MD
673 implementations of their own. This is detailed in crypto/engine/README
674 as it couldn't be adequately described here. However, there are a few
675 API changes worth noting - some RSA, DSA, DH, and RAND functions that
676 were changed in the original introduction of ENGINE code have now
677 reverted back - the hooking from this code to ENGINE is now a good
678 deal more passive and at run-time, operations deal directly with
679 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
680 dereferencing through an ENGINE pointer any more. Also, the ENGINE
681 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
682 they were not being used by the framework as there is no concept of a
683 BIGNUM_METHOD and they could not be generalised to the new
684 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
685 ENGINE_cpy() has been removed as it cannot be consistently defined in
689 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
692 *) Change mkdef.pl to sort symbols that get the same entry number,
693 and make sure the automatically generated functions ERR_load_*
694 become part of libeay.num as well.
697 *) New function SSL_renegotiate_pending(). This returns true once
698 renegotiation has been requested (either SSL_renegotiate() call
699 or HelloRequest/ClientHello receveived from the peer) and becomes
700 false once a handshake has been completed.
701 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
702 sends a HelloRequest, but does not ensure that a handshake takes
703 place. SSL_renegotiate_pending() is useful for checking if the
704 client has followed the request.)
707 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
708 By default, clients may request session resumption even during
709 renegotiation (if session ID contexts permit); with this option,
710 session resumption is possible only in the first handshake.
712 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
713 more bits available for options that should not be part of
714 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
717 *) Add some demos for certificate and certificate request creation.
720 *) Make maximum certificate chain size accepted from the peer application
721 settable (SSL*_get/set_max_cert_list()), as proposed by
722 "Douglas E. Engert" <deengert@anl.gov>.
725 *) Add support for shared libraries for Unixware-7
726 (Boyd Lynn Gerber <gerberb@zenez.com>).
729 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
730 be done prior to destruction. Use this to unload error strings from
731 ENGINEs that load their own error strings. NB: This adds two new API
732 functions to "get" and "set" this destroy handler in an ENGINE.
735 *) Alter all existing ENGINE implementations (except "openssl" and
736 "openbsd") to dynamically instantiate their own error strings. This
737 makes them more flexible to be built both as statically-linked ENGINEs
738 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
739 Also, add stub code to each that makes building them as self-contained
740 shared-libraries easier (see README.ENGINE).
743 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
744 implementations into applications that are completely implemented in
745 self-contained shared-libraries. The "dynamic" ENGINE exposes control
746 commands that can be used to configure what shared-library to load and
747 to control aspects of the way it is handled. Also, made an update to
748 the README.ENGINE file that brings its information up-to-date and
749 provides some information and instructions on the "dynamic" ENGINE
750 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
753 *) Make it possible to unload ranges of ERR strings with a new
754 "ERR_unload_strings" function.
757 *) Add a copy() function to EVP_MD.
760 *) Make EVP_MD routines take a context pointer instead of just the
761 md_data void pointer.
764 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
765 that the digest can only process a single chunk of data
766 (typically because it is provided by a piece of
767 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
768 is only going to provide a single chunk of data, and hence the
769 framework needn't accumulate the data for oneshot drivers.
772 *) As with "ERR", make it possible to replace the underlying "ex_data"
773 functions. This change also alters the storage and management of global
774 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
775 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
776 index counters. The API functions that use this state have been changed
777 to take a "class_index" rather than pointers to the class's local STACK
778 and counter, and there is now an API function to dynamically create new
779 classes. This centralisation allows us to (a) plug a lot of the
780 thread-safety problems that existed, and (b) makes it possible to clean
781 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
782 such data would previously have always leaked in application code and
783 workarounds were in place to make the memory debugging turn a blind eye
784 to it. Application code that doesn't use this new function will still
785 leak as before, but their memory debugging output will announce it now
786 rather than letting it slide.
788 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
789 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
790 has a return value to indicate success or failure.
793 *) Make it possible to replace the underlying "ERR" functions such that the
794 global state (2 LHASH tables and 2 locks) is only used by the "default"
795 implementation. This change also adds two functions to "get" and "set"
796 the implementation prior to it being automatically set the first time
797 any other ERR function takes place. Ie. an application can call "get",
798 pass the return value to a module it has just loaded, and that module
799 can call its own "set" function using that value. This means the
800 module's "ERR" operations will use (and modify) the error state in the
801 application and not in its own statically linked copy of OpenSSL code.
804 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
805 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
806 the operation, and provides a more encapsulated way for external code
807 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
808 to use these functions rather than manually incrementing the counts.
810 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
813 *) Add EVP test program.
816 *) Add symmetric cipher support to ENGINE. Expect the API to change!
819 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
820 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
821 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
822 These allow a CRL to be built without having to access X509_CRL fields
823 directly. Modify 'ca' application to use new functions.
826 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
827 bug workarounds. Rollback attack detection is a security feature.
828 The problem will only arise on OpenSSL servers when TLSv1 is not
829 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
830 Software authors not wanting to support TLSv1 will have special reasons
831 for their choice and can explicitly enable this option.
832 [Bodo Moeller, Lutz Jaenicke]
834 *) Rationalise EVP so it can be extended: don't include a union of
835 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
836 (similar to those existing for EVP_CIPHER_CTX).
841 EVP_MD_CTX_init(&md); /* new function call */
842 EVP_DigestInit(&md, EVP_sha1());
843 EVP_DigestUpdate(&md, in, len);
844 EVP_DigestFinal(&md, out, NULL);
845 EVP_MD_CTX_cleanup(&md); /* new function call */
849 *) Make DES key schedule conform to the usual scheme, as well as
850 correcting its structure. This means that calls to DES functions
851 now have to pass a pointer to a des_key_schedule instead of a
852 plain des_key_schedule (which was actually always a pointer
857 des_set_key_checked(..., &ks);
858 des_ncbc_encrypt(..., &ks, ...);
860 (Note that a later change renames 'des_...' into 'DES_...'.)
863 *) Initial reduction of linker bloat: the use of some functions, such as
864 PEM causes large amounts of unused functions to be linked in due to
865 poor organisation. For example pem_all.c contains every PEM function
866 which has a knock on effect of linking in large amounts of (unused)
867 ASN1 code. Grouping together similar functions and splitting unrelated
868 functions prevents this.
871 *) Cleanup of EVP macros.
874 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
878 *) Add initial OCSP responder support to ocsp application. The
879 revocation information is handled using the text based index
880 use by the ca application. The responder can either handle
881 requests generated internally, supplied in files (for example
882 via a CGI script) or using an internal minimal server.
885 *) Add configuration choices to get zlib compression for TLS.
888 *) Changes to Kerberos SSL for RFC 2712 compliance:
889 1. Implemented real KerberosWrapper, instead of just using
890 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
891 2. Implemented optional authenticator field of KerberosWrapper.
893 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
894 and authenticator structs; see crypto/krb5/.
896 Generalized Kerberos calls to support multiple Kerberos libraries.
897 [Vern Staats <staatsvr@asc.hpc.mil>,
898 Jeffrey Altman <jaltman@columbia.edu>
901 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
902 already does with RSA. testdsa.h now has 'priv_key/pub_key'
903 values for each of the key sizes rather than having just
904 parameters (and 'speed' generating keys each time).
907 *) Speed up EVP routines.
910 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
911 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
912 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
913 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
915 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
916 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
917 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
920 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
922 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
925 *) Added the OS2-EMX target.
926 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
928 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
929 to support NCONF routines in extension code. New function CONF_set_nconf()
930 to allow functions which take an NCONF to also handle the old LHASH
931 structure: this means that the old CONF compatible routines can be
932 retained (in particular wrt extensions) without having to duplicate the
933 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
936 *) Enhance the general user interface with mechanisms for inner control
937 and with possibilities to have yes/no kind of prompts.
940 *) Change all calls to low level digest routines in the library and
941 applications to use EVP. Add missing calls to HMAC_cleanup() and
942 don't assume HMAC_CTX can be copied using memcpy().
943 [Verdon Walker <VWalker@novell.com>, Steve Henson]
945 *) Add the possibility to control engines through control names but with
946 arbitrary arguments instead of just a string.
947 Change the key loaders to take a UI_METHOD instead of a callback
948 function pointer. NOTE: this breaks binary compatibility with earlier
949 versions of OpenSSL [engine].
950 Adapt the nCipher code for these new conditions and add a card insertion
954 *) Enhance the general user interface with mechanisms to better support
955 dialog box interfaces, application-defined prompts, the possibility
956 to use defaults (for example default passwords from somewhere else)
957 and interrupts/cancellations.
960 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
961 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
964 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
965 tidy up some unnecessarily weird code in 'sk_new()').
966 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
968 *) Change the key loading routines for ENGINEs to use the same kind
969 callback (pem_password_cb) as all other routines that need this
973 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
974 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
975 than this minimum value is recommended.
978 *) New random seeder for OpenVMS, using the system process statistics
979 that are easily reachable.
982 *) Windows apparently can't transparently handle global
983 variables defined in DLLs. Initialisations such as:
985 const ASN1_ITEM *it = &ASN1_INTEGER_it;
987 wont compile. This is used by the any applications that need to
988 declare their own ASN1 modules. This was fixed by adding the option
989 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
990 needed for static libraries under Win32.
993 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
994 setting of purpose and trust fields. New X509_STORE trust and
995 purpose functions and tidy up setting in other SSL functions.
998 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
999 structure. These are inherited by X509_STORE_CTX when it is
1000 initialised. This allows various defaults to be set in the
1001 X509_STORE structure (such as flags for CRL checking and custom
1002 purpose or trust settings) for functions which only use X509_STORE_CTX
1003 internally such as S/MIME.
1005 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
1006 trust settings if they are not set in X509_STORE. This allows X509_STORE
1007 purposes and trust (in S/MIME for example) to override any set by default.
1009 Add command line options for CRL checking to smime, s_client and s_server
1013 *) Initial CRL based revocation checking. If the CRL checking flag(s)
1014 are set then the CRL is looked up in the X509_STORE structure and
1015 its validity and signature checked, then if the certificate is found
1016 in the CRL the verify fails with a revoked error.
1018 Various new CRL related callbacks added to X509_STORE_CTX structure.
1020 Command line options added to 'verify' application to support this.
1022 This needs some additional work, such as being able to handle multiple
1023 CRLs with different times, extension based lookup (rather than just
1024 by subject name) and ultimately more complete V2 CRL extension
1028 *) Add a general user interface API (crypto/ui/). This is designed
1029 to replace things like des_read_password and friends (backward
1030 compatibility functions using this new API are provided).
1031 The purpose is to remove prompting functions from the DES code
1032 section as well as provide for prompting through dialog boxes in
1033 a window system and the like.
1036 *) Add "ex_data" support to ENGINE so implementations can add state at a
1037 per-structure level rather than having to store it globally.
1040 *) Make it possible for ENGINE structures to be copied when retrieved by
1041 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
1042 This causes the "original" ENGINE structure to act like a template,
1043 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
1044 operational state can be localised to each ENGINE structure, despite the
1045 fact they all share the same "methods". New ENGINE structures returned in
1046 this case have no functional references and the return value is the single
1047 structural reference. This matches the single structural reference returned
1048 by ENGINE_by_id() normally, when it is incremented on the pre-existing
1052 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
1053 needs to match any other type at all we need to manually clear the
1057 *) Changes to the "openssl engine" utility to include;
1058 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
1059 about an ENGINE's available control commands.
1060 - executing control commands from command line arguments using the
1061 '-pre' and '-post' switches. '-post' is only used if '-t' is
1062 specified and the ENGINE is successfully initialised. The syntax for
1063 the individual commands are colon-separated, for example;
1064 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
1067 *) New dynamic control command support for ENGINEs. ENGINEs can now
1068 declare their own commands (numbers), names (strings), descriptions,
1069 and input types for run-time discovery by calling applications. A
1070 subset of these commands are implicitly classed as "executable"
1071 depending on their input type, and only these can be invoked through
1072 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
1073 can be based on user input, config files, etc). The distinction is
1074 that "executable" commands cannot return anything other than a boolean
1075 result and can only support numeric or string input, whereas some
1076 discoverable commands may only be for direct use through
1077 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
1078 pointers, or other custom uses. The "executable" commands are to
1079 support parameterisations of ENGINE behaviour that can be
1080 unambiguously defined by ENGINEs and used consistently across any
1081 OpenSSL-based application. Commands have been added to all the
1082 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
1083 control over shared-library paths without source code alterations.
1086 *) Changed all ENGINE implementations to dynamically allocate their
1087 ENGINEs rather than declaring them statically. Apart from this being
1088 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
1089 this also allows the implementations to compile without using the
1090 internal engine_int.h header.
1093 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
1094 'const' value. Any code that should be able to modify a RAND_METHOD
1095 should already have non-const pointers to it (ie. they should only
1096 modify their own ones).
1099 *) Made a variety of little tweaks to the ENGINE code.
1100 - "atalla" and "ubsec" string definitions were moved from header files
1101 to C code. "nuron" string definitions were placed in variables
1102 rather than hard-coded - allowing parameterisation of these values
1103 later on via ctrl() commands.
1104 - Removed unused "#if 0"'d code.
1105 - Fixed engine list iteration code so it uses ENGINE_free() to release
1106 structural references.
1107 - Constified the RAND_METHOD element of ENGINE structures.
1108 - Constified various get/set functions as appropriate and added
1109 missing functions (including a catch-all ENGINE_cpy that duplicates
1110 all ENGINE values onto a new ENGINE except reference counts/state).
1111 - Removed NULL parameter checks in get/set functions. Setting a method
1112 or function to NULL is a way of cancelling out a previously set
1113 value. Passing a NULL ENGINE parameter is just plain stupid anyway
1114 and doesn't justify the extra error symbols and code.
1115 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
1116 flags from engine_int.h to engine.h.
1117 - Changed prototypes for ENGINE handler functions (init(), finish(),
1118 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
1121 *) Implement binary inversion algorithm for BN_mod_inverse in addition
1122 to the algorithm using long division. The binary algorithm can be
1123 used only if the modulus is odd. On 32-bit systems, it is faster
1124 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
1125 roughly 5-15% for 256-bit moduli), so we use it only for moduli
1126 up to 450 bits. In 64-bit environments, the binary algorithm
1127 appears to be advantageous for much longer moduli; here we use it
1128 for moduli up to 2048 bits.
1131 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
1132 could not support the combine flag in choice fields.
1135 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
1136 extensions from a certificate request to the certificate.
1139 *) Allow multiple 'certopt' and 'nameopt' options to be separated
1140 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
1141 file: this allows the display of the certificate about to be
1142 signed to be customised, to allow certain fields to be included
1143 or excluded and extension details. The old system didn't display
1144 multicharacter strings properly, omitted fields not in the policy
1145 and couldn't display additional details such as extensions.
1148 *) Function EC_POINTs_mul for multiple scalar multiplication
1149 of an arbitrary number of elliptic curve points
1150 \sum scalars[i]*points[i],
1151 optionally including the generator defined for the EC_GROUP:
1152 scalar*generator + \sum scalars[i]*points[i].
1154 EC_POINT_mul is a simple wrapper function for the typical case
1155 that the point list has just one item (besides the optional
1159 *) First EC_METHODs for curves over GF(p):
1161 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
1162 operations and provides various method functions that can also
1163 operate with faster implementations of modular arithmetic.
1165 EC_GFp_mont_method() reuses most functions that are part of
1166 EC_GFp_simple_method, but uses Montgomery arithmetic.
1168 [Bodo Moeller; point addition and point doubling
1169 implementation directly derived from source code provided by
1170 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
1172 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
1173 crypto/ec/ec_lib.c):
1175 Curves are EC_GROUP objects (with an optional group generator)
1176 based on EC_METHODs that are built into the library.
1178 Points are EC_POINT objects based on EC_GROUP objects.
1180 Most of the framework would be able to handle curves over arbitrary
1181 finite fields, but as there are no obvious types for fields other
1182 than GF(p), some functions are limited to that for now.
1185 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
1186 that the file contains a complete HTTP response.
1189 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
1190 change the def and num file printf format specifier from "%-40sXXX"
1191 to "%-39s XXX". The latter will always guarantee a space after the
1192 field while the former will cause them to run together if the field
1193 is 40 of more characters long.
1196 *) Constify the cipher and digest 'method' functions and structures
1197 and modify related functions to take constant EVP_MD and EVP_CIPHER
1201 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
1202 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
1205 *) Modify EVP_Digest*() routines so they now return values. Although the
1206 internal software routines can never fail additional hardware versions
1210 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
1212 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
1213 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
1216 ERR_R_NESTED_ASN1_ERROR
1218 ERR_R_MISSING_ASN1_EOS
1219 were 4 .. 9, conflicting with
1220 ERR_LIB_RSA (= ERR_R_RSA_LIB)
1222 ERR_LIB_PEM (= ERR_R_PEM_LIB).
1223 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
1225 Add new error code 'ERR_R_INTERNAL_ERROR'.
1228 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
1232 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
1233 sets the subject name for a new request or supersedes the
1234 subject name in a given request. Formats that can be parsed are
1235 'CN=Some Name, OU=myOU, C=IT'
1237 'CN=Some Name/OU=myOU/C=IT'.
1239 Add options '-batch' and '-verbose' to 'openssl req'.
1240 [Massimiliano Pala <madwolf@hackmasters.net>]
1242 *) Introduce the possibility to access global variables through
1243 functions on platform were that's the best way to handle exporting
1244 global variables in shared libraries. To enable this functionality,
1245 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
1246 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
1247 is normally done by Configure or something similar).
1249 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
1250 in the source file (foo.c) like this:
1252 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
1253 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
1255 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
1256 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
1258 OPENSSL_DECLARE_GLOBAL(int,foo);
1259 #define foo OPENSSL_GLOBAL_REF(foo)
1260 OPENSSL_DECLARE_GLOBAL(double,bar);
1261 #define bar OPENSSL_GLOBAL_REF(bar)
1263 The #defines are very important, and therefore so is including the
1264 header file everywhere where the defined globals are used.
1266 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
1267 of ASN.1 items, but that structure is a bit different.
1269 The largest change is in util/mkdef.pl which has been enhanced with
1270 better and easier to understand logic to choose which symbols should
1271 go into the Windows .def files as well as a number of fixes and code
1272 cleanup (among others, algorithm keywords are now sorted
1273 lexicographically to avoid constant rewrites).
1276 *) In BN_div() keep a copy of the sign of 'num' before writing the
1277 result to 'rm' because if rm==num the value will be overwritten
1278 and produce the wrong result if 'num' is negative: this caused
1279 problems with BN_mod() and BN_nnmod().
1282 *) Function OCSP_request_verify(). This checks the signature on an
1283 OCSP request and verifies the signer certificate. The signer
1284 certificate is just checked for a generic purpose and OCSP request
1288 *) Add OCSP_check_validity() function to check the validity of OCSP
1289 responses. OCSP responses are prepared in real time and may only
1290 be a few seconds old. Simply checking that the current time lies
1291 between thisUpdate and nextUpdate max reject otherwise valid responses
1292 caused by either OCSP responder or client clock inaccuracy. Instead
1293 we allow thisUpdate and nextUpdate to fall within a certain period of
1294 the current time. The age of the response can also optionally be
1295 checked. Two new options -validity_period and -status_age added to
1299 *) If signature or public key algorithm is unrecognized print out its
1300 OID rather that just UNKNOWN.
1303 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
1304 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
1305 ID to be generated from the issuer certificate alone which can then be
1306 passed to OCSP_id_issuer_cmp().
1309 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
1310 ASN1 modules to export functions returning ASN1_ITEM pointers
1311 instead of the ASN1_ITEM structures themselves. This adds several
1312 new macros which allow the underlying ASN1 function/structure to
1313 be accessed transparently. As a result code should not use ASN1_ITEM
1314 references directly (such as &X509_it) but instead use the relevant
1315 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
1316 use of the new ASN1 code on platforms where exporting structures
1317 is problematical (for example in shared libraries) but exporting
1318 functions returning pointers to structures is not.
1321 *) Add support for overriding the generation of SSL/TLS session IDs.
1322 These callbacks can be registered either in an SSL_CTX or per SSL.
1323 The purpose of this is to allow applications to control, if they wish,
1324 the arbitrary values chosen for use as session IDs, particularly as it
1325 can be useful for session caching in multiple-server environments. A
1326 command-line switch for testing this (and any client code that wishes
1327 to use such a feature) has been added to "s_server".
1328 [Geoff Thorpe, Lutz Jaenicke]
1330 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
1331 of the form '#if defined(...) || defined(...) || ...' and
1332 '#if !defined(...) && !defined(...) && ...'. This also avoids
1333 the growing number of special cases it was previously handling.
1336 *) Make all configuration macros available for application by making
1337 sure they are available in opensslconf.h, by giving them names starting
1338 with "OPENSSL_" to avoid conflicts with other packages and by making
1339 sure e_os2.h will cover all platform-specific cases together with
1341 Additionally, it is now possible to define configuration/platform-
1342 specific names (called "system identities"). In the C code, these
1343 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
1344 macro with the name beginning with "OPENSSL_SYS_", which is determined
1345 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
1349 *) New option -set_serial to 'req' and 'x509' this allows the serial
1350 number to use to be specified on the command line. Previously self
1351 signed certificates were hard coded with serial number 0 and the
1352 CA options of 'x509' had to use a serial number in a file which was
1356 *) New options to 'ca' utility to support V2 CRL entry extensions.
1357 Currently CRL reason, invalidity date and hold instruction are
1358 supported. Add new CRL extensions to V3 code and some new objects.
1361 *) New function EVP_CIPHER_CTX_set_padding() this is used to
1362 disable standard block padding (aka PKCS#5 padding) in the EVP
1363 API, which was previously mandatory. This means that the data is
1364 not padded in any way and so the total length much be a multiple
1365 of the block size, otherwise an error occurs.
1368 *) Initial (incomplete) OCSP SSL support.
1371 *) New function OCSP_parse_url(). This splits up a URL into its host,
1372 port and path components: primarily to parse OCSP URLs. New -url
1373 option to ocsp utility.
1376 *) New nonce behavior. The return value of OCSP_check_nonce() now
1377 reflects the various checks performed. Applications can decide
1378 whether to tolerate certain situations such as an absent nonce
1379 in a response when one was present in a request: the ocsp application
1380 just prints out a warning. New function OCSP_add1_basic_nonce()
1381 this is to allow responders to include a nonce in a response even if
1382 the request is nonce-less.
1385 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
1386 skipped when using openssl x509 multiple times on a single input file,
1387 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
1390 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
1391 set string type: to handle setting ASN1_TIME structures. Fix ca
1392 utility to correctly initialize revocation date of CRLs.
1395 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
1396 the clients preferred ciphersuites and rather use its own preferences.
1397 Should help to work around M$ SGC (Server Gated Cryptography) bug in
1398 Internet Explorer by ensuring unchanged hash method during stepup.
1399 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
1402 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
1403 to aes and add a new 'exist' option to print out symbols that don't
1407 *) Additional options to ocsp utility to allow flags to be set and
1408 additional certificates supplied.
1411 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
1412 OCSP client a number of certificate to only verify the response
1416 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
1417 handle the new API. Currently only ECB, CBC modes supported. Add new
1420 Add TLS AES ciphersuites as described in RFC3268, "Advanced
1421 Encryption Standard (AES) Ciphersuites for Transport Layer
1422 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
1423 not enabled by default and were not part of the "ALL" ciphersuite
1424 alias because they were not yet official; they could be
1425 explicitly requested by specifying the "AESdraft" ciphersuite
1426 group alias. In the final release of OpenSSL 0.9.7, the group
1427 alias is called "AES" and is part of "ALL".)
1428 [Ben Laurie, Steve Henson, Bodo Moeller]
1430 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
1431 request to response.
1434 *) Functions for OCSP responders. OCSP_request_onereq_count(),
1435 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
1436 extract information from a certificate request. OCSP_response_create()
1437 creates a response and optionally adds a basic response structure.
1438 OCSP_basic_add1_status() adds a complete single response to a basic
1439 response and returns the OCSP_SINGLERESP structure just added (to allow
1440 extensions to be included for example). OCSP_basic_add1_cert() adds a
1441 certificate to a basic response and OCSP_basic_sign() signs a basic
1442 response with various flags. New helper functions ASN1_TIME_check()
1443 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
1444 (converts ASN1_TIME to GeneralizedTime).
1447 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
1448 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
1449 structure from a certificate. X509_pubkey_digest() digests the public_key
1450 contents: this is used in various key identifiers.
1453 *) Make sk_sort() tolerate a NULL argument.
1454 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
1456 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
1457 passed by the function are trusted implicitly. If any of them signed the
1458 response then it is assumed to be valid and is not verified.
1461 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
1462 to data. This was previously part of the PKCS7 ASN1 code. This
1463 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
1464 [Steve Henson, reported by Kenneth R. Robinette
1465 <support@securenetterm.com>]
1467 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
1468 routines: without these tracing memory leaks is very painful.
1469 Fix leaks in PKCS12 and PKCS7 routines.
1472 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
1473 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
1474 effectively meant GeneralizedTime would never be used. Now it
1475 is initialised to -1 but X509_time_adj() now has to check the value
1476 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
1477 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
1478 [Steve Henson, reported by Kenneth R. Robinette
1479 <support@securenetterm.com>]
1481 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
1482 result in a zero length in the ASN1_INTEGER structure which was
1483 not consistent with the structure when d2i_ASN1_INTEGER() was used
1484 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
1485 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
1486 where it did not print out a minus for negative ASN1_INTEGER.
1489 *) Add summary printout to ocsp utility. The various functions which
1490 convert status values to strings have been renamed to:
1491 OCSP_response_status_str(), OCSP_cert_status_str() and
1492 OCSP_crl_reason_str() and are no longer static. New options
1493 to verify nonce values and to disable verification. OCSP response
1494 printout format cleaned up.
1497 *) Add additional OCSP certificate checks. These are those specified
1498 in RFC2560. This consists of two separate checks: the CA of the
1499 certificate being checked must either be the OCSP signer certificate
1500 or the issuer of the OCSP signer certificate. In the latter case the
1501 OCSP signer certificate must contain the OCSP signing extended key
1502 usage. This check is performed by attempting to match the OCSP
1503 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
1504 in the OCSP_CERTID structures of the response.
1507 *) Initial OCSP certificate verification added to OCSP_basic_verify()
1508 and related routines. This uses the standard OpenSSL certificate
1509 verify routines to perform initial checks (just CA validity) and
1510 to obtain the certificate chain. Then additional checks will be
1511 performed on the chain. Currently the root CA is checked to see
1512 if it is explicitly trusted for OCSP signing. This is used to set
1513 a root CA as a global signing root: that is any certificate that
1514 chains to that CA is an acceptable OCSP signing certificate.
1517 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
1518 extensions from a separate configuration file.
1519 As when reading extensions from the main configuration file,
1520 the '-extensions ...' option may be used for specifying the
1522 [Massimiliano Pala <madwolf@comune.modena.it>]
1524 *) New OCSP utility. Allows OCSP requests to be generated or
1525 read. The request can be sent to a responder and the output
1526 parsed, outputed or printed in text form. Not complete yet:
1527 still needs to check the OCSP response validity.
1530 *) New subcommands for 'openssl ca':
1531 'openssl ca -status <serial>' prints the status of the cert with
1532 the given serial number (according to the index file).
1533 'openssl ca -updatedb' updates the expiry status of certificates
1535 [Massimiliano Pala <madwolf@comune.modena.it>]
1537 *) New '-newreq-nodes' command option to CA.pl. This is like
1538 '-newreq', but calls 'openssl req' with the '-nodes' option
1539 so that the resulting key is not encrypted.
1540 [Damien Miller <djm@mindrot.org>]
1542 *) New configuration for the GNU Hurd.
1543 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
1545 *) Initial code to implement OCSP basic response verify. This
1546 is currently incomplete. Currently just finds the signer's
1547 certificate and verifies the signature on the response.
1550 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
1551 value of OPENSSLDIR. This is available via the new '-d' option
1552 to 'openssl version', and is also included in 'openssl version -a'.
1555 *) Allowing defining memory allocation callbacks that will be given
1556 file name and line number information in additional arguments
1557 (a const char* and an int). The basic functionality remains, as
1558 well as the original possibility to just replace malloc(),
1559 realloc() and free() by functions that do not know about these
1560 additional arguments. To register and find out the current
1561 settings for extended allocation functions, the following
1562 functions are provided:
1564 CRYPTO_set_mem_ex_functions
1565 CRYPTO_set_locked_mem_ex_functions
1566 CRYPTO_get_mem_ex_functions
1567 CRYPTO_get_locked_mem_ex_functions
1569 These work the same way as CRYPTO_set_mem_functions and friends.
1570 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
1571 extended allocation function is enabled.
1572 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
1573 a conventional allocation function is enabled.
1574 [Richard Levitte, Bodo Moeller]
1576 *) Finish off removing the remaining LHASH function pointer casts.
1577 There should no longer be any prototype-casting required when using
1578 the LHASH abstraction, and any casts that remain are "bugs". See
1579 the callback types and macros at the head of lhash.h for details
1580 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
1583 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
1584 If /dev/[u]random devices are not available or do not return enough
1585 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
1587 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
1588 /etc/entropy will be queried once each in this sequence, quering stops
1589 when enough entropy was collected without querying more sockets.
1592 *) Change the Unix RAND_poll() variant to be able to poll several
1593 random devices, as specified by DEVRANDOM, until a sufficient amount
1594 of data has been collected. We spend at most 10 ms on each file
1595 (select timeout) and read in non-blocking mode. DEVRANDOM now
1596 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
1597 (previously it was just the string "/dev/urandom"), so on typical
1598 platforms the 10 ms delay will never occur.
1599 Also separate out the Unix variant to its own file, rand_unix.c.
1600 For VMS, there's a currently-empty rand_vms.c.
1603 *) Move OCSP client related routines to ocsp_cl.c. These
1604 provide utility functions which an application needing
1605 to issue a request to an OCSP responder and analyse the
1606 response will typically need: as opposed to those which an
1607 OCSP responder itself would need which will be added later.
1609 OCSP_request_sign() signs an OCSP request with an API similar
1610 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
1611 response. OCSP_response_get1_basic() extracts basic response
1612 from response. OCSP_resp_find_status(): finds and extracts status
1613 information from an OCSP_CERTID structure (which will be created
1614 when the request structure is built). These are built from lower
1615 level functions which work on OCSP_SINGLERESP structures but
1616 wont normally be used unless the application wishes to examine
1617 extensions in the OCSP response for example.
1619 Replace nonce routines with a pair of functions.
1620 OCSP_request_add1_nonce() adds a nonce value and optionally
1621 generates a random value. OCSP_check_nonce() checks the
1622 validity of the nonce in an OCSP response.
1625 *) Change function OCSP_request_add() to OCSP_request_add0_id().
1626 This doesn't copy the supplied OCSP_CERTID and avoids the
1627 need to free up the newly created id. Change return type
1628 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
1629 This can then be used to add extensions to the request.
1630 Deleted OCSP_request_new(), since most of its functionality
1631 is now in OCSP_REQUEST_new() (and the case insensitive name
1632 clash) apart from the ability to set the request name which
1633 will be added elsewhere.
1636 *) Update OCSP API. Remove obsolete extensions argument from
1637 various functions. Extensions are now handled using the new
1638 OCSP extension code. New simple OCSP HTTP function which
1639 can be used to send requests and parse the response.
1642 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
1643 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
1644 uses the special reorder version of SET OF to sort the attributes
1645 and reorder them to match the encoded order. This resolves a long
1646 standing problem: a verify on a PKCS7 structure just after signing
1647 it used to fail because the attribute order did not match the
1648 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
1649 it uses the received order. This is necessary to tolerate some broken
1650 software that does not order SET OF. This is handled by encoding
1651 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
1652 to produce the required SET OF.
1655 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
1656 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
1657 files to get correct declarations of the ASN.1 item variables.
1660 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
1661 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
1662 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
1663 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
1664 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
1665 ASN1_ITEM and no wrapper functions.
1668 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
1669 replace the old function pointer based I/O routines. Change most of
1670 the *_d2i_bio() and *_d2i_fp() functions to use these.
1673 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
1674 lines, recognice more "algorithms" that can be deselected, and make
1675 it complain about algorithm deselection that isn't recognised.
1678 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
1679 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
1680 to use new functions. Add NO_ASN1_OLD which can be set to remove
1681 some old style ASN1 functions: this can be used to determine if old
1682 code will still work when these eventually go away.
1685 *) New extension functions for OCSP structures, these follow the
1686 same conventions as certificates and CRLs.
1689 *) New function X509V3_add1_i2d(). This automatically encodes and
1690 adds an extension. Its behaviour can be customised with various
1691 flags to append, replace or delete. Various wrappers added for
1692 certifcates and CRLs.
1695 *) Fix to avoid calling the underlying ASN1 print routine when
1696 an extension cannot be parsed. Correct a typo in the
1697 OCSP_SERVICELOC extension. Tidy up print OCSP format.
1700 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
1701 entries for variables.
1704 *) Add functionality to apps/openssl.c for detecting locking
1705 problems: As the program is single-threaded, all we have
1706 to do is register a locking callback using an array for
1707 storing which locks are currently held by the program.
1710 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
1711 SSL_get_ex_data_X509_STORE_idx(), which is used in
1712 ssl_verify_cert_chain() and thus can be called at any time
1713 during TLS/SSL handshakes so that thread-safety is essential.
1714 Unfortunately, the ex_data design is not at all suited
1715 for multi-threaded use, so it probably should be abolished.
1718 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
1719 [Broadcom, tweaked and integrated by Geoff Thorpe]
1721 *) Move common extension printing code to new function
1722 X509V3_print_extensions(). Reorganise OCSP print routines and
1723 implement some needed OCSP ASN1 functions. Add OCSP extensions.
1726 *) New function X509_signature_print() to remove duplication in some
1730 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
1731 set (this was treated exactly the same as SET OF previously). This
1732 is used to reorder the STACK representing the structure to match the
1733 encoding. This will be used to get round a problem where a PKCS7
1734 structure which was signed could not be verified because the STACK
1735 order did not reflect the encoded order.
1738 *) Reimplement the OCSP ASN1 module using the new code.
1741 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
1742 for its ASN1 operations. The old style function pointers still exist
1743 for now but they will eventually go away.
1746 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
1747 completely replaces the old ASN1 functionality with a table driven
1748 encoder and decoder which interprets an ASN1_ITEM structure describing
1749 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
1750 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
1751 has also been converted to the new form.
1754 *) Change BN_mod_exp_recp so that negative moduli are tolerated
1755 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
1756 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
1757 for negative moduli.
1760 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
1761 of not touching the result's sign bit.
1764 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
1768 *) Changed the LHASH code to use prototypes for callbacks, and created
1769 macros to declare and implement thin (optionally static) functions
1770 that provide type-safety and avoid function pointer casting for the
1771 type-specific callbacks.
1774 *) Added Kerberos Cipher Suites to be used with TLS, as written in
1776 [Veers Staats <staatsvr@asc.hpc.mil>,
1777 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
1779 *) Reformat the FAQ so the different questions and answers can be divided
1780 in sections depending on the subject.
1783 *) Have the zlib compression code load ZLIB.DLL dynamically under
1787 *) New function BN_mod_sqrt for computing square roots modulo a prime
1788 (using the probabilistic Tonelli-Shanks algorithm unless
1789 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
1790 be handled deterministically).
1791 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
1793 *) Make BN_mod_inverse faster by explicitly handling small quotients
1794 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
1795 512 bits], about 30% for larger ones [1024 or 2048 bits].)
1798 *) New function BN_kronecker.
1801 *) Fix BN_gcd so that it works on negative inputs; the result is
1802 positive unless both parameters are zero.
1803 Previously something reasonably close to an infinite loop was
1804 possible because numbers could be growing instead of shrinking
1805 in the implementation of Euclid's algorithm.
1808 *) Fix BN_is_word() and BN_is_one() macros to take into account the
1809 sign of the number in question.
1811 Fix BN_is_word(a,w) to work correctly for w == 0.
1813 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
1814 because its test if the absolute value of 'a' equals 'w'.
1815 Note that BN_abs_is_word does *not* handle w == 0 reliably;
1816 it exists mostly for use in the implementations of BN_is_zero(),
1817 BN_is_one(), and BN_is_word().
1820 *) New function BN_swap.
1823 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
1824 the exponentiation functions are more likely to produce reasonable
1825 results on negative inputs.
1828 *) Change BN_mod_mul so that the result is always non-negative.
1829 Previously, it could be negative if one of the factors was negative;
1830 I don't think anyone really wanted that behaviour.
1833 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
1834 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
1835 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
1836 and add new functions:
1845 BN_mod_lshift1_quick
1849 These functions always generate non-negative results.
1851 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
1852 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
1854 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
1855 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
1856 be reduced modulo m.
1857 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
1859 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
1860 was actually never needed) and in BN_mul(). The removal in BN_mul()
1861 required a small change in bn_mul_part_recursive() and the addition
1862 of the functions bn_cmp_part_words(), bn_sub_part_words() and
1863 bn_add_part_words(), which do the same thing as bn_cmp_words(),
1864 bn_sub_words() and bn_add_words() except they take arrays with
1868 *) In 'openssl passwd', verify passwords read from the terminal
1869 unless the '-salt' option is used (which usually means that
1870 verification would just waste user's time since the resulting
1871 hash is going to be compared with some given password hash)
1872 or the new '-noverify' option is used.
1874 This is an incompatible change, but it does not affect
1875 non-interactive use of 'openssl passwd' (passwords on the command
1876 line, '-stdin' option, '-in ...' option) and thus should not
1880 *) Remove all references to RSAref, since there's no more need for it.
1883 *) Make DSO load along a path given through an environment variable
1884 (SHLIB_PATH) with shl_load().
1887 *) Constify the ENGINE code as a result of BIGNUM constification.
1888 Also constify the RSA code and most things related to it. In a
1889 few places, most notable in the depth of the ASN.1 code, ugly
1890 casts back to non-const were required (to be solved at a later
1894 *) Make it so the openssl application has all engines loaded by default.
1897 *) Constify the BIGNUM routines a little more.
1900 *) Add the following functions:
1902 ENGINE_load_cswift()
1904 ENGINE_load_atalla()
1906 ENGINE_load_builtin_engines()
1908 That way, an application can itself choose if external engines that
1909 are built-in in OpenSSL shall ever be used or not. The benefit is
1910 that applications won't have to be linked with libdl or other dso
1911 libraries unless it's really needed.
1913 Changed 'openssl engine' to load all engines on demand.
1914 Changed the engine header files to avoid the duplication of some
1915 declarations (they differed!).
1918 *) 'openssl engine' can now list capabilities.
1921 *) Better error reporting in 'openssl engine'.
1924 *) Never call load_dh_param(NULL) in s_server.
1927 *) Add engine application. It can currently list engines by name and
1928 identity, and test if they are actually available.
1931 *) Improve RPM specification file by forcing symbolic linking and making
1932 sure the installed documentation is also owned by root.root.
1933 [Damien Miller <djm@mindrot.org>]
1935 *) Give the OpenSSL applications more possibilities to make use of
1936 keys (public as well as private) handled by engines.
1939 *) Add OCSP code that comes from CertCo.
1942 *) Add VMS support for the Rijndael code.
1945 *) Added untested support for Nuron crypto accelerator.
1948 *) Add support for external cryptographic devices. This code was
1949 previously distributed separately as the "engine" branch.
1950 [Geoff Thorpe, Richard Levitte]
1952 *) Rework the filename-translation in the DSO code. It is now possible to
1953 have far greater control over how a "name" is turned into a filename
1954 depending on the operating environment and any oddities about the
1955 different shared library filenames on each system.
1958 *) Support threads on FreeBSD-elf in Configure.
1961 *) Fix for SHA1 assembly problem with MASM: it produces
1962 warnings about corrupt line number information when assembling
1963 with debugging information. This is caused by the overlapping
1965 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
1968 NCONF_get_number() has no error checking at all. As a replacement,
1969 NCONF_get_number_e() is defined (_e for "error checking") and is
1970 promoted strongly. The old NCONF_get_number is kept around for
1971 binary backward compatibility.
1972 Make it possible for methods to load from something other than a BIO,
1973 by providing a function pointer that is given a name instead of a BIO.
1974 For example, this could be used to load configuration data from an
1978 *) Fix for non blocking accept BIOs. Added new I/O special reason
1979 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
1980 with non blocking I/O was not possible because no retry code was
1981 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
1985 *) Added the beginnings of Rijndael support.
1988 *) Fix for bug in DirectoryString mask setting. Add support for
1989 X509_NAME_print_ex() in 'req' and X509_print_ex() function
1990 to allow certificate printing to more controllable, additional
1991 'certopt' option to 'x509' to allow new printing options to be
1995 *) Clean old EAY MD5 hack from e_os.h.
1998 Changes between 0.9.6g and 0.9.6h [xx XXX xxxx]
2000 *) Change X509_NAME_cmp() so it applies the special rules on handling
2001 DN values that are of type PrintableString, as well as RDNs of type
2002 emailAddress where the value has the type ia5String.
2003 [stefank@valicert.com via Richard Levitte]
2005 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
2006 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
2007 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
2008 the bitwise-OR of the two for use by the majority of applications
2009 wanting this behaviour, and update the docs. The documented
2010 behaviour and actual behaviour were inconsistent and had been
2011 changing anyway, so this is more a bug-fix than a behavioural
2013 [Geoff Thorpe, diagnosed by Nadav Har'El]
2015 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
2016 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
2019 *) Fix initialization code race conditions in
2020 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
2021 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
2022 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
2023 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
2024 ssl2_get_cipher_by_char(),
2025 ssl3_get_cipher_by_char().
2026 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
2028 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
2029 the cached sessions are flushed, as the remove_cb() might use ex_data
2030 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
2031 (see [openssl.org #212]).
2032 [Geoff Thorpe, Lutz Jaenicke]
2034 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
2035 length, instead of the encoding length to d2i_ASN1_OBJECT.
2038 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
2040 *) [In 0.9.6g-engine release:]
2041 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
2042 [Lynn Gazis <lgazis@rainbow.com>]
2044 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
2046 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
2047 and get fix the header length calculation.
2048 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
2049 Alon Kantor <alonk@checkpoint.com> (and others),
2052 *) Use proper error handling instead of 'assertions' in buffer
2053 overflow checks added in 0.9.6e. This prevents DoS (the
2054 assertions could call abort()).
2055 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
2057 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
2059 *) Add various sanity checks to asn1_get_length() to reject
2060 the ASN1 length bytes if they exceed sizeof(long), will appear
2061 negative or the content length exceeds the length of the
2063 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
2065 *) Fix cipher selection routines: ciphers without encryption had no flags
2066 for the cipher strength set and where therefore not handled correctly
2067 by the selection routines (PR #130).
2070 *) Fix EVP_dsa_sha macro.
2074 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
2075 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
2076 that was added in OpenSSL 0.9.6d.
2078 As the countermeasure turned out to be incompatible with some
2079 broken SSL implementations, the new option is part of SSL_OP_ALL.
2080 SSL_OP_ALL is usually employed when compatibility with weird SSL
2081 implementations is desired (e.g. '-bugs' option to 's_client' and
2082 's_server'), so the new option is automatically set in many
2086 *) Changes in security patch:
2088 Changes marked "(CHATS)" were sponsored by the Defense Advanced
2089 Research Projects Agency (DARPA) and Air Force Research Laboratory,
2090 Air Force Materiel Command, USAF, under agreement number
2093 *) Add various sanity checks to asn1_get_length() to reject
2094 the ASN1 length bytes if they exceed sizeof(long), will appear
2095 negative or the content length exceeds the length of the
2096 supplied buffer. (CAN-2002-0659)
2097 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
2099 *) Assertions for various potential buffer overflows, not known to
2101 [Ben Laurie (CHATS)]
2103 *) Various temporary buffers to hold ASCII versions of integers were
2104 too small for 64 bit platforms. (CAN-2002-0655)
2105 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
2107 *) Remote buffer overflow in SSL3 protocol - an attacker could
2108 supply an oversized session ID to a client. (CAN-2002-0656)
2109 [Ben Laurie (CHATS)]
2111 *) Remote buffer overflow in SSL2 protocol - an attacker could
2112 supply an oversized client master key. (CAN-2002-0656)
2113 [Ben Laurie (CHATS)]
2115 Changes between 0.9.6c and 0.9.6d [9 May 2002]
2117 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
2118 encoded as NULL) with id-dsa-with-sha1.
2119 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
2121 *) Check various X509_...() return values in apps/req.c.
2122 [Nils Larsch <nla@trustcenter.de>]
2124 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
2125 an end-of-file condition would erronously be flagged, when the CRLF
2126 was just at the end of a processed block. The bug was discovered when
2127 processing data through a buffering memory BIO handing the data to a
2128 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
2129 <ptsekov@syntrex.com> and Nedelcho Stanev.
2132 *) Implement a countermeasure against a vulnerability recently found
2133 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
2134 before application data chunks to avoid the use of known IVs
2135 with data potentially chosen by the attacker.
2138 *) Fix length checks in ssl3_get_client_hello().
2141 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
2142 to prevent ssl3_read_internal() from incorrectly assuming that
2143 ssl3_read_bytes() found application data while handshake
2144 processing was enabled when in fact s->s3->in_read_app_data was
2145 merely automatically cleared during the initial handshake.
2146 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
2148 *) Fix object definitions for Private and Enterprise: they were not
2149 recognized in their shortname (=lowercase) representation. Extend
2150 obj_dat.pl to issue an error when using undefined keywords instead
2151 of silently ignoring the problem (Svenning Sorensen
2152 <sss@sss.dnsalias.net>).
2155 *) Fix DH_generate_parameters() so that it works for 'non-standard'
2156 generators, i.e. generators other than 2 and 5. (Previously, the
2157 code did not properly initialise the 'add' and 'rem' values to
2158 BN_generate_prime().)
2160 In the new general case, we do not insist that 'generator' is
2161 actually a primitive root: This requirement is rather pointless;
2162 a generator of the order-q subgroup is just as good, if not
2166 *) Map new X509 verification errors to alerts. Discovered and submitted by
2167 Tom Wu <tom@arcot.com>.
2170 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
2171 returning non-zero before the data has been completely received
2172 when using non-blocking I/O.
2173 [Bodo Moeller; problem pointed out by John Hughes]
2175 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
2176 [Ben Laurie, Lutz Jaenicke]
2178 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
2179 Yoram Zahavi <YoramZ@gilian.com>).
2182 *) Add information about CygWin 1.3 and on, and preserve proper
2183 configuration for the versions before that.
2184 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
2186 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
2187 check whether we deal with a copy of a session and do not delete from
2188 the cache in this case. Problem reported by "Izhar Shoshani Levi"
2189 <izhar@checkpoint.com>.
2192 *) Do not store session data into the internal session cache, if it
2193 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
2194 flag is set). Proposed by Aslam <aslam@funk.com>.
2197 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
2201 *) [In 0.9.6d-engine release:]
2202 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
2203 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2205 *) Add the configuration target linux-s390x.
2206 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
2208 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
2209 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
2210 variable as an indication that a ClientHello message has been
2211 received. As the flag value will be lost between multiple
2212 invocations of ssl3_accept when using non-blocking I/O, the
2213 function may not be aware that a handshake has actually taken
2214 place, thus preventing a new session from being added to the
2217 To avoid this problem, we now set s->new_session to 2 instead of
2218 using a local variable.
2219 [Lutz Jaenicke, Bodo Moeller]
2221 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
2222 if the SSL_R_LENGTH_MISMATCH error is detected.
2223 [Geoff Thorpe, Bodo Moeller]
2225 *) New 'shared_ldflag' column in Configure platform table.
2228 *) Fix EVP_CIPHER_mode macro.
2229 ["Dan S. Camper" <dan@bti.net>]
2231 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
2232 type, we must throw them away by setting rr->length to 0.
2233 [D P Chang <dpc@qualys.com>]
2235 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
2237 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
2238 <Dominikus.Scherkl@biodata.com>. (The previous implementation
2239 worked incorrectly for those cases where range = 10..._2 and
2240 3*range is two bits longer than range.)
2243 *) Only add signing time to PKCS7 structures if it is not already
2247 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
2248 OBJ_ld_ce should be OBJ_id_ce.
2249 Also some ip-pda OIDs in crypto/objects/objects.txt were
2250 incorrect (cf. RFC 3039).
2251 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
2253 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
2254 returns early because it has nothing to do.
2255 [Andy Schneider <andy.schneider@bjss.co.uk>]
2257 *) [In 0.9.6c-engine release:]
2258 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
2259 [Andy Schneider <andy.schneider@bjss.co.uk>]
2261 *) [In 0.9.6c-engine release:]
2262 Add support for Cryptographic Appliance's keyserver technology.
2263 (Use engine 'keyclient')
2264 [Cryptographic Appliances and Geoff Thorpe]
2266 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
2267 is called via tools/c89.sh because arguments have to be
2268 rearranged (all '-L' options must appear before the first object
2270 [Richard Shapiro <rshapiro@abinitio.com>]
2272 *) [In 0.9.6c-engine release:]
2273 Add support for Broadcom crypto accelerator cards, backported
2275 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
2277 *) [In 0.9.6c-engine release:]
2278 Add support for SureWare crypto accelerator cards from
2279 Baltimore Technologies. (Use engine 'sureware')
2280 [Baltimore Technologies and Mark Cox]
2282 *) [In 0.9.6c-engine release:]
2283 Add support for crypto accelerator cards from Accelerated
2284 Encryption Processing, www.aep.ie. (Use engine 'aep')
2285 [AEP Inc. and Mark Cox]
2287 *) Add a configuration entry for gcc on UnixWare.
2288 [Gary Benson <gbenson@redhat.com>]
2290 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
2291 messages are stored in a single piece (fixed-length part and
2292 variable-length part combined) and fix various bugs found on the way.
2295 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
2296 instead. BIO_gethostbyname() does not know what timeouts are
2297 appropriate, so entries would stay in cache even when they have
2299 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
2301 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
2302 faced with a pathologically small ClientHello fragment that does
2303 not contain client_version: Instead of aborting with an error,
2304 simply choose the highest available protocol version (i.e.,
2305 TLS 1.0 unless it is disabled). In practice, ClientHello
2306 messages are never sent like this, but this change gives us
2307 strictly correct behaviour at least for TLS.
2310 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
2311 never resets s->method to s->ctx->method when called from within
2312 one of the SSL handshake functions.
2313 [Bodo Moeller; problem pointed out by Niko Baric]
2315 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
2316 (sent using the client's version number) if client_version is
2317 smaller than the protocol version in use. Also change
2318 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
2319 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
2320 the client will at least see that alert.
2323 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
2327 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
2328 client receives HelloRequest while in a handshake.
2329 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
2331 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
2332 should end in 'break', not 'goto end' which circuments various
2333 cleanups done in state SSL_ST_OK. But session related stuff
2334 must be disabled for SSL_ST_OK in the case that we just sent a
2337 Also avoid some overhead by not calling ssl_init_wbio_buffer()
2338 before just sending a HelloRequest.
2339 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
2341 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
2342 reveal whether illegal block cipher padding was found or a MAC
2343 verification error occured. (Neither SSLerr() codes nor alerts
2344 are directly visible to potential attackers, but the information
2345 may leak via logfiles.)
2347 Similar changes are not required for the SSL 2.0 implementation
2348 because the number of padding bytes is sent in clear for SSL 2.0,
2349 and the extra bytes are just ignored. However ssl/s2_pkt.c
2350 failed to verify that the purported number of padding bytes is in
2354 *) Add OpenUNIX-8 support including shared libraries
2355 (Boyd Lynn Gerber <gerberb@zenez.com>).
2358 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
2359 'wristwatch attack' using huge encoding parameters (cf.
2360 James H. Manger's CRYPTO 2001 paper). Note that the
2361 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
2362 encoding parameters and hence was not vulnerable.
2365 *) BN_sqr() bug fix.
2366 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
2368 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
2369 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
2370 followed by modular reduction.
2371 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
2373 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
2374 equivalent based on BN_pseudo_rand() instead of BN_rand().
2377 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
2378 This function was broken, as the check for a new client hello message
2379 to handle SGC did not allow these large messages.
2380 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
2383 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
2386 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
2387 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
2390 *) Rework the configuration and shared library support for Tru64 Unix.
2391 The configuration part makes use of modern compiler features and
2392 still retains old compiler behavior for those that run older versions
2393 of the OS. The shared library support part includes a variant that
2394 uses the RPATH feature, and is available through the special
2395 configuration target "alpha-cc-rpath", which will never be selected
2397 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
2399 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
2400 with the same message size as in ssl3_get_certificate_request().
2401 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
2402 messages might inadvertently be reject as too long.
2403 [Petr Lampa <lampa@fee.vutbr.cz>]
2405 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
2408 *) Modified SSL library such that the verify_callback that has been set
2409 specificly for an SSL object with SSL_set_verify() is actually being
2410 used. Before the change, a verify_callback set with this function was
2411 ignored and the verify_callback() set in the SSL_CTX at the time of
2412 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
2413 to allow the necessary settings.
2416 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
2417 explicitly to NULL, as at least on Solaris 8 this seems not always to be
2418 done automatically (in contradiction to the requirements of the C
2419 standard). This made problems when used from OpenSSH.
2422 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
2423 dh->length and always used
2425 BN_rand_range(priv_key, dh->p).
2427 BN_rand_range() is not necessary for Diffie-Hellman, and this
2428 specific range makes Diffie-Hellman unnecessarily inefficient if
2429 dh->length (recommended exponent length) is much smaller than the
2430 length of dh->p. We could use BN_rand_range() if the order of
2431 the subgroup was stored in the DH structure, but we only have
2436 BN_rand(priv_key, l, ...)
2438 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
2444 RSA_eay_public_encrypt
2445 RSA_eay_private_decrypt
2446 RSA_eay_private_encrypt (signing)
2447 RSA_eay_public_decrypt (signature verification)
2449 (default implementations for RSA_public_encrypt,
2450 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
2451 always reject numbers >= n.
2454 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
2455 to synchronize access to 'locking_thread'. This is necessary on
2456 systems where access to 'locking_thread' (an 'unsigned long'
2457 variable) is not atomic.
2460 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
2461 *before* setting the 'crypto_lock_rand' flag. The previous code had
2462 a race condition if 0 is a valid thread ID.
2463 [Travis Vitek <vitek@roguewave.com>]
2465 *) Add support for shared libraries under Irix.
2466 [Albert Chin-A-Young <china@thewrittenword.com>]
2468 *) Add configuration option to build on Linux on both big-endian and
2470 [Ralf Baechle <ralf@uni-koblenz.de>]
2472 *) Add the possibility to create shared libraries on HP-UX.
2475 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
2477 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
2478 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
2479 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
2480 PRNG state recovery was possible based on the output of
2481 one PRNG request appropriately sized to gain knowledge on
2482 'md' followed by enough consecutive 1-byte PRNG requests
2483 to traverse all of 'state'.
2485 1. When updating 'md_local' (the current thread's copy of 'md')
2486 during PRNG output generation, hash all of the previous
2487 'md_local' value, not just the half used for PRNG output.
2489 2. Make the number of bytes from 'state' included into the hash
2490 independent from the number of PRNG bytes requested.
2492 The first measure alone would be sufficient to avoid
2493 Markku-Juhani's attack. (Actually it had never occurred
2494 to me that the half of 'md_local' used for chaining was the
2495 half from which PRNG output bytes were taken -- I had always
2496 assumed that the secret half would be used.) The second
2497 measure makes sure that additional data from 'state' is never
2498 mixed into 'md_local' in small portions; this heuristically
2499 further strengthens the PRNG.
2502 *) Fix crypto/bn/asm/mips3.s.
2505 *) When only the key is given to "enc", the IV is undefined. Print out
2506 an error message in this case.
2509 *) Handle special case when X509_NAME is empty in X509 printing routines.
2512 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
2513 positive and less than q.
2516 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
2517 used: it isn't thread safe and the add_lock_callback should handle
2519 [Paul Rose <Paul.Rose@bridge.com>]
2521 *) Verify that incoming data obeys the block size in
2522 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
2526 [Ulf Möller, Bodo Möller]
2528 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
2529 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
2530 when fixing the server behaviour for backwards-compatible 'client
2531 hello' messages. (Note that the attack is impractical against
2532 SSL 3.0 and TLS 1.0 anyway because length and version checking
2533 means that the probability of guessing a valid ciphertext is
2534 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
2537 Before 0.9.5, the countermeasure (hide the error by generating a
2538 random 'decryption result') did not work properly because
2539 ERR_clear_error() was missing, meaning that SSL_get_error() would
2540 detect the supposedly ignored error.
2542 Both problems are now fixed.
2545 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
2546 (previously it was 1024).
2549 *) Fix for compatibility mode trust settings: ignore trust settings
2550 unless some valid trust or reject settings are present.
2553 *) Fix for blowfish EVP: its a variable length cipher.
2556 *) Fix various bugs related to DSA S/MIME verification. Handle missing
2557 parameters in DSA public key structures and return an error in the
2558 DSA routines if parameters are absent.
2561 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
2562 in the current directory if neither $RANDFILE nor $HOME was set.
2563 RAND_file_name() in 0.9.6a returned NULL in this case. This has
2564 caused some confusion to Windows users who haven't defined $HOME.
2565 Thus RAND_file_name() is changed again: e_os.h can define a
2566 DEFAULT_HOME, which will be used if $HOME is not set.
2567 For Windows, we use "C:"; on other platforms, we still require
2568 environment variables.
2570 *) Move 'if (!initialized) RAND_poll()' into regions protected by
2571 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
2572 having multiple threads call RAND_poll() concurrently.
2575 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
2576 combination of a flag and a thread ID variable.
2577 Otherwise while one thread is in ssleay_rand_bytes (which sets the
2578 flag), *other* threads can enter ssleay_add_bytes without obeying
2579 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
2580 that they do not hold after the first thread unsets add_do_not_lock).
2583 *) Change bctest again: '-x' expressions are not available in all
2587 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
2589 *) Fix a couple of memory leaks in PKCS7_dataDecode()
2590 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
2592 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
2593 the default extension for executables, if any. Also, make the perl
2594 scripts that use symlink() to test if it really exists and use "cp"
2595 if it doesn't. All this made OpenSSL compilable and installable in
2599 *) Fix for asn1_GetSequence() for indefinite length constructed data.
2600 If SEQUENCE is length is indefinite just set c->slen to the total
2601 amount of data available.
2602 [Steve Henson, reported by shige@FreeBSD.org]
2603 [This change does not apply to 0.9.7.]
2605 *) Change bctest to avoid here-documents inside command substitution
2606 (workaround for FreeBSD /bin/sh bug).
2607 For compatibility with Ultrix, avoid shell functions (introduced
2608 in the bctest version that searches along $PATH).
2611 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
2612 with des_encrypt() defined on some operating systems, like Solaris
2616 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
2617 On the Importance of Eliminating Errors in Cryptographic
2618 Computations, J. Cryptology 14 (2001) 2, 101-119,
2619 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
2622 *) MIPS assembler BIGNUM division bug fix.
2625 *) Disabled incorrect Alpha assembler code.
2628 *) Fix PKCS#7 decode routines so they correctly update the length
2629 after reading an EOC for the EXPLICIT tag.
2631 [This change does not apply to 0.9.7.]
2633 *) Fix bug in PKCS#12 key generation routines. This was triggered
2634 if a 3DES key was generated with a 0 initial byte. Include
2635 PKCS12_BROKEN_KEYGEN compilation option to retain the old
2636 (but broken) behaviour.
2639 *) Enhance bctest to search for a working bc along $PATH and print
2641 [Tim Rice <tim@multitalents.net> via Richard Levitte]
2643 *) Fix memory leaks in err.c: free err_data string if necessary;
2644 don't write to the wrong index in ERR_set_error_data.
2647 *) Implement ssl23_peek (analogous to ssl23_read), which previously
2651 *) Replace rdtsc with _emit statements for VC++ version 5.
2652 [Jeremy Cooper <jeremy@baymoo.org>]
2654 *) Make it possible to reuse SSLv2 sessions.
2657 *) In copy_email() check for >= 0 as a return value for
2658 X509_NAME_get_index_by_NID() since 0 is a valid index.
2659 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
2661 *) Avoid coredump with unsupported or invalid public keys by checking if
2662 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
2663 PKCS7_verify() fails with non detached data.
2666 *) Don't use getenv in library functions when run as setuid/setgid.
2667 New function OPENSSL_issetugid().
2670 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
2671 due to incorrect handling of multi-threading:
2673 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
2675 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
2677 3. Count how many times MemCheck_off() has been called so that
2678 nested use can be treated correctly. This also avoids
2679 inband-signalling in the previous code (which relied on the
2680 assumption that thread ID 0 is impossible).
2683 *) Add "-rand" option also to s_client and s_server.
2686 *) Fix CPU detection on Irix 6.x.
2687 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
2688 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
2690 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
2693 [This change does not apply to 0.9.7.]
2695 *) Use the cached encoding of an X509_NAME structure rather than
2696 copying it. This is apparently the reason for the libsafe "errors"
2697 but the code is actually correct.
2700 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
2701 Bleichenbacher's DSA attack.
2702 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
2703 to be set and top=0 forces the highest bit to be set; top=-1 is new
2704 and leaves the highest bit random.
2705 [Ulf Moeller, Bodo Moeller]
2707 *) In the NCONF_...-based implementations for CONF_... queries
2708 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
2709 a temporary CONF structure with the data component set to NULL
2710 (which gives segmentation faults in lh_retrieve).
2711 Instead, use NULL for the CONF pointer in CONF_get_string and
2712 CONF_get_number (which may use environment variables) and directly
2713 return NULL from CONF_get_section.
2716 *) Fix potential buffer overrun for EBCDIC.
2719 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
2720 keyUsage if basicConstraints absent for a CA.
2723 *) Make SMIME_write_PKCS7() write mail header values with a format that
2724 is more generally accepted (no spaces before the semicolon), since
2725 some programs can't parse those values properly otherwise. Also make
2726 sure BIO's that break lines after each write do not create invalid
2730 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
2731 macros previously used would not encode an empty SEQUENCE OF
2732 and break the signature.
2734 [This change does not apply to 0.9.7.]
2736 *) Zero the premaster secret after deriving the master secret in
2740 *) Add some EVP_add_digest_alias registrations (as found in
2741 OpenSSL_add_all_digests()) to SSL_library_init()
2742 aka OpenSSL_add_ssl_algorithms(). This provides improved
2743 compatibility with peers using X.509 certificates
2744 with unconventional AlgorithmIdentifier OIDs.
2747 *) Fix for Irix with NO_ASM.
2748 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
2750 *) ./config script fixes.
2751 [Ulf Moeller, Richard Levitte]
2753 *) Fix 'openssl passwd -1'.
2756 *) Change PKCS12_key_gen_asc() so it can cope with non null
2757 terminated strings whose length is passed in the passlen
2758 parameter, for example from PEM callbacks. This was done
2759 by adding an extra length parameter to asc2uni().
2760 [Steve Henson, reported by <oddissey@samsung.co.kr>]
2762 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
2763 call failed, free the DSA structure.
2766 *) Fix to uni2asc() to cope with zero length Unicode strings.
2767 These are present in some PKCS#12 files.
2770 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
2771 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
2772 when writing a 32767 byte record.
2773 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
2775 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
2776 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
2778 (RSA objects have a reference count access to which is protected
2779 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
2780 so they are meant to be shared between threads.)
2781 [Bodo Moeller, Geoff Thorpe; original patch submitted by
2782 "Reddie, Steven" <Steven.Reddie@ca.com>]
2784 *) Fix a deadlock in CRYPTO_mem_leaks().
2787 *) Use better test patterns in bntest.
2790 *) rand_win.c fix for Borland C.
2793 *) BN_rshift bugfix for n == 0.
2796 *) Add a 'bctest' script that checks for some known 'bc' bugs
2797 so that 'make test' does not abort just because 'bc' is broken.
2800 *) Store verify_result within SSL_SESSION also for client side to
2801 avoid potential security hole. (Re-used sessions on the client side
2802 always resulted in verify_result==X509_V_OK, not using the original
2803 result of the server certificate verification.)
2806 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
2807 SSL3_RT_APPLICATION_DATA, return 0.
2808 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
2812 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
2813 releases, have been re-implemented by renaming the previous
2814 implementations of ssl2_read and ssl3_read to ssl2_read_internal
2815 and ssl3_read_internal, respectively, and adding 'peek' parameters
2816 to them. The new ssl[23]_{read,peek} functions are calls to
2817 ssl[23]_read_internal with the 'peek' flag set appropriately.
2818 A 'peek' parameter has also been added to ssl3_read_bytes, which
2819 does the actual work for ssl3_read_internal.
2822 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
2823 the method-specific "init()" handler. Also clean up ex_data after
2824 calling the method-specific "finish()" handler. Previously, this was
2825 happening the other way round.
2828 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
2829 The previous value, 12, was not always sufficient for BN_mod_exp().
2832 *) Make sure that shared libraries get the internal name engine with
2833 the full version number and not just 0. This should mark the
2834 shared libraries as not backward compatible. Of course, this should
2835 be changed again when we can guarantee backward binary compatibility.
2838 *) Fix typo in get_cert_by_subject() in by_dir.c
2839 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
2841 *) Rework the system to generate shared libraries:
2843 - Make note of the expected extension for the shared libraries and
2844 if there is a need for symbolic links from for example libcrypto.so.0
2845 to libcrypto.so.0.9.7. There is extended info in Configure for
2848 - Make as few rebuilds of the shared libraries as possible.
2850 - Still avoid linking the OpenSSL programs with the shared libraries.
2852 - When installing, install the shared libraries separately from the
2856 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
2858 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
2859 and not in SSL_clear because the latter is also used by the
2860 accept/connect functions; previously, the settings made by
2861 SSL_set_read_ahead would be lost during the handshake.
2862 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
2864 *) Correct util/mkdef.pl to be selective about disabled algorithms.
2865 Previously, it would create entries for disableed algorithms no
2869 *) Added several new manual pages for SSL_* function.
2872 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
2874 *) In ssl23_get_client_hello, generate an error message when faced
2875 with an initial SSL 3.0/TLS record that is too small to contain the
2876 first two bytes of the ClientHello message, i.e. client_version.
2877 (Note that this is a pathologic case that probably has never happened
2878 in real life.) The previous approach was to use the version number
2879 from the record header as a substitute; but our protocol choice
2880 should not depend on that one because it is not authenticated
2881 by the Finished messages.
2884 *) More robust randomness gathering functions for Windows.
2885 [Jeffrey Altman <jaltman@columbia.edu>]
2887 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
2888 not set then we don't setup the error code for issuer check errors
2889 to avoid possibly overwriting other errors which the callback does
2890 handle. If an application does set the flag then we assume it knows
2891 what it is doing and can handle the new informational codes
2895 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
2896 a general "ANY" type, as such it should be able to decode anything
2897 including tagged types. However it didn't check the class so it would
2898 wrongly interpret tagged types in the same way as their universal
2899 counterpart and unknown types were just rejected. Changed so that the
2900 tagged and unknown types are handled in the same way as a SEQUENCE:
2901 that is the encoding is stored intact. There is also a new type
2902 "V_ASN1_OTHER" which is used when the class is not universal, in this
2903 case we have no idea what the actual type is so we just lump them all
2907 *) On VMS, stdout may very well lead to a file that is written to
2908 in a record-oriented fashion. That means that every write() will
2909 write a separate record, which will be read separately by the
2910 programs trying to read from it. This can be very confusing.
2912 The solution is to put a BIO filter in the way that will buffer
2913 text until a linefeed is reached, and then write everything a
2914 line at a time, so every record written will be an actual line,
2915 not chunks of lines and not (usually doesn't happen, but I've
2916 seen it once) several lines in one record. BIO_f_linebuffer() is
2919 Currently, it's a VMS-only method, because that's where it has
2920 been tested well enough.
2923 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
2924 it can return incorrect results.
2925 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
2926 but it was in 0.9.6-beta[12].)
2929 *) Disable the check for content being present when verifying detached
2930 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
2931 include zero length content when signing messages.
2934 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
2935 BIO_ctrl (for BIO pairs).
2938 *) Add DSO method for VMS.
2941 *) Bug fix: Montgomery multiplication could produce results with the
2945 *) Add RPM specification openssl.spec and modify it to build three
2946 packages. The default package contains applications, application
2947 documentation and run-time libraries. The devel package contains
2948 include files, static libraries and function documentation. The
2949 doc package contains the contents of the doc directory. The original
2950 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
2953 *) Add a large number of documentation files for many SSL routines.
2954 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
2956 *) Add a configuration entry for Sony News 4.
2957 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
2959 *) Don't set the two most significant bits to one when generating a
2960 random number < q in the DSA library.
2963 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
2964 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
2965 the underlying transport is blocking) if a handshake took place.
2966 (The default behaviour is needed by applications such as s_client
2967 and s_server that use select() to determine when to use SSL_read;
2968 but for applications that know in advance when to expect data, it
2969 just makes things more complicated.)
2972 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
2976 *) Add a few more EBCDIC conditionals that make `req' and `x509'
2977 work better on such systems.
2978 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
2980 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
2981 Update PKCS12_parse() so it copies the friendlyName and the
2982 keyid to the certificates aux info.
2985 *) Fix bug in PKCS7_verify() which caused an infinite loop
2986 if there was more than one signature.
2987 [Sven Uszpelkat <su@celocom.de>]
2989 *) Major change in util/mkdef.pl to include extra information
2990 about each symbol, as well as presentig variables as well
2991 as functions. This change means that there's n more need
2992 to rebuild the .num files when some algorithms are excluded.
2995 *) Allow the verify time to be set by an application,
2996 rather than always using the current time.
2999 *) Phase 2 verify code reorganisation. The certificate
3000 verify code now looks up an issuer certificate by a
3001 number of criteria: subject name, authority key id
3002 and key usage. It also verifies self signed certificates
3003 by the same criteria. The main comparison function is
3004 X509_check_issued() which performs these checks.
3006 Lot of changes were necessary in order to support this
3007 without completely rewriting the lookup code.
3009 Authority and subject key identifier are now cached.
3011 The LHASH 'certs' is X509_STORE has now been replaced
3012 by a STACK_OF(X509_OBJECT). This is mainly because an
3013 LHASH can't store or retrieve multiple objects with
3014 the same hash value.
3016 As a result various functions (which were all internal
3017 use only) have changed to handle the new X509_STORE
3018 structure. This will break anything that messed round
3019 with X509_STORE internally.
3021 The functions X509_STORE_add_cert() now checks for an
3022 exact match, rather than just subject name.
3024 The X509_STORE API doesn't directly support the retrieval
3025 of multiple certificates matching a given criteria, however
3026 this can be worked round by performing a lookup first
3027 (which will fill the cache with candidate certificates)
3028 and then examining the cache for matches. This is probably
3029 the best we can do without throwing out X509_LOOKUP
3030 entirely (maybe later...).
3032 The X509_VERIFY_CTX structure has been enhanced considerably.
3034 All certificate lookup operations now go via a get_issuer()
3035 callback. Although this currently uses an X509_STORE it
3036 can be replaced by custom lookups. This is a simple way
3037 to bypass the X509_STORE hackery necessary to make this
3038 work and makes it possible to use more efficient techniques
3039 in future. A very simple version which uses a simple
3040 STACK for its trusted certificate store is also provided
3041 using X509_STORE_CTX_trusted_stack().
3043 The verify_cb() and verify() callbacks now have equivalents
3044 in the X509_STORE_CTX structure.
3046 X509_STORE_CTX also has a 'flags' field which can be used
3047 to customise the verify behaviour.
3050 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
3051 excludes S/MIME capabilities.
3054 *) When a certificate request is read in keep a copy of the
3055 original encoding of the signed data and use it when outputing
3056 again. Signatures then use the original encoding rather than
3057 a decoded, encoded version which may cause problems if the
3058 request is improperly encoded.
3061 *) For consistency with other BIO_puts implementations, call
3062 buffer_write(b, ...) directly in buffer_puts instead of calling
3065 In BIO_puts, increment b->num_write as in BIO_write.
3066 [Peter.Sylvester@EdelWeb.fr]
3068 *) Fix BN_mul_word for the case where the word is 0. (We have to use
3069 BN_zero, we may not return a BIGNUM with an array consisting of
3073 *) Avoid calling abort() from within the library when problems are
3074 detected, except if preprocessor symbols have been defined
3075 (such as REF_CHECK, BN_DEBUG etc.).
3078 *) New openssl application 'rsautl'. This utility can be
3079 used for low level RSA operations. DER public key
3080 BIO/fp routines also added.
3083 *) New Configure entry and patches for compiling on QNX 4.
3084 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
3086 *) A demo state-machine implementation was sponsored by
3087 Nuron (http://www.nuron.com/) and is now available in
3088 demos/state_machine.
3091 *) New options added to the 'dgst' utility for signature
3092 generation and verification.
3095 *) Unrecognized PKCS#7 content types are now handled via a
3096 catch all ASN1_TYPE structure. This allows unsupported
3097 types to be stored as a "blob" and an application can
3098 encode and decode it manually.
3101 *) Fix various signed/unsigned issues to make a_strex.c
3103 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
3105 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
3106 length if passed a buffer. ASN1_INTEGER_to_BN failed
3107 if passed a NULL BN and its argument was negative.
3108 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
3110 *) Modification to PKCS#7 encoding routines to output definite
3111 length encoding. Since currently the whole structures are in
3112 memory there's not real point in using indefinite length
3113 constructed encoding. However if OpenSSL is compiled with
3114 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
3117 *) Added BIO_vprintf() and BIO_vsnprintf().
3120 *) Added more prefixes to parse for in the the strings written
3121 through a logging bio, to cover all the levels that are available
3122 through syslog. The prefixes are now:
3124 PANIC, EMERG, EMR => LOG_EMERG
3125 ALERT, ALR => LOG_ALERT
3126 CRIT, CRI => LOG_CRIT
3127 ERROR, ERR => LOG_ERR
3128 WARNING, WARN, WAR => LOG_WARNING
3129 NOTICE, NOTE, NOT => LOG_NOTICE
3130 INFO, INF => LOG_INFO
3131 DEBUG, DBG => LOG_DEBUG
3133 and as before, if none of those prefixes are present at the
3134 beginning of the string, LOG_ERR is chosen.
3136 On Win32, the LOG_* levels are mapped according to this:
3138 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
3139 LOG_WARNING => EVENTLOG_WARNING_TYPE
3140 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
3144 *) Made it possible to reconfigure with just the configuration
3145 argument "reconf" or "reconfigure". The command line arguments
3146 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
3147 and are retrieved from there when reconfiguring.
3151 [Assar Westerlund <assar@sics.se>, Richard Levitte]
3153 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
3156 *) The obj_dat.pl script was messing up the sorting of object
3157 names. The reason was that it compared the quoted version
3158 of strings as a result "OCSP" > "OCSP Signing" because
3159 " > SPACE. Changed script to store unquoted versions of
3160 names and add quotes on output. It was also omitting some
3161 names from the lookup table if they were given a default
3162 value (that is if SN is missing it is given the same
3163 value as LN and vice versa), these are now added on the
3164 grounds that if an object has a name we should be able to
3165 look it up. Finally added warning output when duplicate
3166 short or long names are found.
3169 *) Changes needed for Tandem NSK.
3170 [Scott Uroff <scott@xypro.com>]
3172 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
3173 RSA_padding_check_SSLv23(), special padding was never detected
3174 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
3175 version rollback attacks was not effective.
3177 In s23_clnt.c, don't use special rollback-attack detection padding
3178 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
3179 client; similarly, in s23_srvr.c, don't do the rollback check if
3180 SSL 2.0 is the only protocol enabled in the server.
3183 *) Make it possible to get hexdumps of unprintable data with 'openssl
3184 asn1parse'. By implication, the functions ASN1_parse_dump() and
3185 BIO_dump_indent() are added.
3188 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
3189 these print out strings and name structures based on various
3190 flags including RFC2253 support and proper handling of
3191 multibyte characters. Added options to the 'x509' utility
3192 to allow the various flags to be set.
3195 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
3196 Also change the functions X509_cmp_current_time() and
3197 X509_gmtime_adj() work with an ASN1_TIME structure,
3198 this will enable certificates using GeneralizedTime in validity
3199 dates to be checked.
3202 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
3203 negative public key encodings) on by default,
3204 NO_NEG_PUBKEY_BUG can be set to disable it.
3207 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
3208 content octets. An i2c_ASN1_OBJECT is unnecessary because
3209 the encoding can be trivially obtained from the structure.
3212 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
3213 not read locks (CRYPTO_r_[un]lock).
3216 *) A first attempt at creating official support for shared
3217 libraries through configuration. I've kept it so the
3218 default is static libraries only, and the OpenSSL programs
3219 are always statically linked for now, but there are
3220 preparations for dynamic linking in place.
3221 This has been tested on Linux and Tru64.
3224 *) Randomness polling function for Win9x, as described in:
3225 Peter Gutmann, Software Generation of Practically Strong
3229 *) Fix so PRNG is seeded in req if using an already existing
3233 *) New options to smime application. -inform and -outform
3234 allow alternative formats for the S/MIME message including
3235 PEM and DER. The -content option allows the content to be
3236 specified separately. This should allow things like Netscape
3237 form signing output easier to verify.
3240 *) Fix the ASN1 encoding of tags using the 'long form'.
3243 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
3244 STRING types. These convert content octets to and from the
3245 underlying type. The actual tag and length octets are
3246 already assumed to have been read in and checked. These
3247 are needed because all other string types have virtually
3248 identical handling apart from the tag. By having versions
3249 of the ASN1 functions that just operate on content octets
3250 IMPLICIT tagging can be handled properly. It also allows
3251 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
3252 and ASN1_INTEGER are identical apart from the tag.
3255 *) Change the handling of OID objects as follows:
3257 - New object identifiers are inserted in objects.txt, following
3258 the syntax given in objects.README.
3259 - objects.pl is used to process obj_mac.num and create a new
3261 - obj_dat.pl is used to create a new obj_dat.h, using the data in
3264 This is currently kind of a hack, and the perl code in objects.pl
3265 isn't very elegant, but it works as I intended. The simplest way
3266 to check that it worked correctly is to look in obj_dat.h and
3267 check the array nid_objs and make sure the objects haven't moved
3268 around (this is important!). Additions are OK, as well as
3269 consistent name changes.
3272 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
3275 *) Addition of the command line parameter '-rand file' to 'openssl req'.
3276 The given file adds to whatever has already been seeded into the
3277 random pool through the RANDFILE configuration file option or
3278 environment variable, or the default random state file.
3281 *) mkstack.pl now sorts each macro group into lexical order.
3282 Previously the output order depended on the order the files
3283 appeared in the directory, resulting in needless rewriting
3287 *) Patches to make OpenSSL compile under Win32 again. Mostly
3288 work arounds for the VC++ problem that it treats func() as
3289 func(void). Also stripped out the parts of mkdef.pl that
3290 added extra typesafe functions: these no longer exist.
3293 *) Reorganisation of the stack code. The macros are now all
3294 collected in safestack.h . Each macro is defined in terms of
3295 a "stack macro" of the form SKM_<name>(type, a, b). The
3296 DEBUG_SAFESTACK is now handled in terms of function casts,
3297 this has the advantage of retaining type safety without the
3298 use of additional functions. If DEBUG_SAFESTACK is not defined
3299 then the non typesafe macros are used instead. Also modified the
3300 mkstack.pl script to handle the new form. Needs testing to see
3301 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
3302 the default if no major problems. Similar behaviour for ASN1_SET_OF
3303 and PKCS12_STACK_OF.
3306 *) When some versions of IIS use the 'NET' form of private key the
3307 key derivation algorithm is different. Normally MD5(password) is
3308 used as a 128 bit RC4 key. In the modified case
3309 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
3310 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
3311 as the old Netscape_RSA functions except they have an additional
3312 'sgckey' parameter which uses the modified algorithm. Also added
3313 an -sgckey command line option to the rsa utility. Thanks to
3314 Adrian Peck <bertie@ncipher.com> for posting details of the modified
3315 algorithm to openssl-dev.
3318 *) The evp_local.h macros were using 'c.##kname' which resulted in
3319 invalid expansion on some systems (SCO 5.0.5 for example).
3320 Corrected to 'c.kname'.
3321 [Phillip Porch <root@theporch.com>]
3323 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
3324 a STACK of email addresses from a certificate or request, these look
3325 in the subject name and the subject alternative name extensions and
3326 omit any duplicate addresses.
3329 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
3330 This makes DSA verification about 2 % faster.
3333 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
3334 (meaning that now 2^5 values will be precomputed, which is only 4 KB
3335 plus overhead for 1024 bit moduli).
3336 This makes exponentiations about 0.5 % faster for 1024 bit
3337 exponents (as measured by "openssl speed rsa2048").
3340 *) Rename memory handling macros to avoid conflicts with other
3342 Malloc => OPENSSL_malloc
3343 Malloc_locked => OPENSSL_malloc_locked
3344 Realloc => OPENSSL_realloc
3345 Free => OPENSSL_free
3348 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
3349 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
3352 *) CygWin32 support.
3353 [John Jarvie <jjarvie@newsguy.com>]
3355 *) The type-safe stack code has been rejigged. It is now only compiled
3356 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
3357 by default all type-specific stack functions are "#define"d back to
3358 standard stack functions. This results in more streamlined output
3359 but retains the type-safety checking possibilities of the original
3363 *) The STACK code has been cleaned up, and certain type declarations
3364 that didn't make a lot of sense have been brought in line. This has
3365 also involved a cleanup of sorts in safestack.h to more correctly
3366 map type-safe stack functions onto their plain stack counterparts.
3367 This work has also resulted in a variety of "const"ifications of
3368 lots of the code, especially "_cmp" operations which should normally
3369 be prototyped with "const" parameters anyway.
3372 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
3373 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
3374 (The PRNG state consists of two parts, the large pool 'state' and 'md',
3375 where all of 'md' is used each time the PRNG is used, but 'state'
3376 is used only indexed by a cyclic counter. As entropy may not be
3377 well distributed from the beginning, 'md' is important as a
3378 chaining variable. However, the output function chains only half
3379 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
3380 all of 'md', and seeding with STATE_SIZE dummy bytes will result
3381 in all of 'state' being rewritten, with the new values depending
3382 on virtually all of 'md'. This overcomes the 80 bit limitation.)
3385 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
3386 the handshake is continued after ssl_verify_cert_chain();
3387 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
3388 can lead to 'unexplainable' connection aborts later.
3389 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
3391 *) Major EVP API cipher revision.
3392 Add hooks for extra EVP features. This allows various cipher
3393 parameters to be set in the EVP interface. Support added for variable
3394 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
3395 setting of RC2 and RC5 parameters.
3397 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
3400 Remove lots of duplicated code from the EVP library. For example *every*
3401 cipher init() function handles the 'iv' in the same way according to the
3402 cipher mode. They also all do nothing if the 'key' parameter is NULL and
3403 for CFB and OFB modes they zero ctx->num.
3405 New functionality allows removal of S/MIME code RC2 hack.
3407 Most of the routines have the same form and so can be declared in terms
3410 By shifting this to the top level EVP_CipherInit() it can be removed from
3411 all individual ciphers. If the cipher wants to handle IVs or keys
3412 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
3415 Change lots of functions like EVP_EncryptUpdate() to now return a
3416 value: although software versions of the algorithms cannot fail
3417 any installed hardware versions can.
3420 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
3421 this option is set, tolerate broken clients that send the negotiated
3422 protocol version number instead of the requested protocol version
3426 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
3427 i.e. non-zero for export ciphersuites, zero otherwise.
3428 Previous versions had this flag inverted, inconsistent with
3429 rsa_tmp_cb (..._TMP_RSA_CB).
3430 [Bodo Moeller; problem reported by Amit Chopra]
3432 *) Add missing DSA library text string. Work around for some IIS
3433 key files with invalid SEQUENCE encoding.
3436 *) Add a document (doc/standards.txt) that list all kinds of standards
3437 and so on that are implemented in OpenSSL.
3440 *) Enhance c_rehash script. Old version would mishandle certificates
3441 with the same subject name hash and wouldn't handle CRLs at all.
3442 Added -fingerprint option to crl utility, to support new c_rehash
3446 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
3449 *) Fix for SSL server purpose checking. Server checking was
3450 rejecting certificates which had extended key usage present
3451 but no ssl client purpose.
3452 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
3454 *) Make PKCS#12 code work with no password. The PKCS#12 spec
3455 is a little unclear about how a blank password is handled.
3456 Since the password in encoded as a BMPString with terminating
3457 double NULL a zero length password would end up as just the
3458 double NULL. However no password at all is different and is
3459 handled differently in the PKCS#12 key generation code. NS
3460 treats a blank password as zero length. MSIE treats it as no
3461 password on export: but it will try both on import. We now do
3462 the same: PKCS12_parse() tries zero length and no password if
3463 the password is set to "" or NULL (NULL is now a valid password:
3464 it wasn't before) as does the pkcs12 application.
3467 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
3468 perror when PEM_read_bio_X509_REQ fails, the error message must
3469 be obtained from the error queue.
3472 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
3473 it in ERR_remove_state if appropriate, and change ERR_get_state
3474 accordingly to avoid race conditions (this is necessary because
3475 thread_hash is no longer constant once set).
3478 *) Bugfix for linux-elf makefile.one.
3481 *) RSA_get_default_method() will now cause a default
3482 RSA_METHOD to be chosen if one doesn't exist already.
3483 Previously this was only set during a call to RSA_new()
3484 or RSA_new_method(NULL) meaning it was possible for
3485 RSA_get_default_method() to return NULL.
3488 *) Added native name translation to the existing DSO code
3489 that will convert (if the flag to do so is set) filenames
3490 that are sufficiently small and have no path information
3491 into a canonical native form. Eg. "blah" converted to
3492 "libblah.so" or "blah.dll" etc.
3495 *) New function ERR_error_string_n(e, buf, len) which is like
3496 ERR_error_string(e, buf), but writes at most 'len' bytes
3497 including the 0 terminator. For ERR_error_string_n, 'buf'
3499 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
3501 *) CONF library reworked to become more general. A new CONF
3502 configuration file reader "class" is implemented as well as a
3503 new functions (NCONF_*, for "New CONF") to handle it. The now
3504 old CONF_* functions are still there, but are reimplemented to
3505 work in terms of the new functions. Also, a set of functions
3506 to handle the internal storage of the configuration data is
3507 provided to make it easier to write new configuration file
3508 reader "classes" (I can definitely see something reading a
3509 configuration file in XML format, for example), called _CONF_*,
3510 or "the configuration storage API"...
3512 The new configuration file reading functions are:
3514 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
3515 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
3517 NCONF_default, NCONF_WIN32
3519 NCONF_dump_fp, NCONF_dump_bio
3521 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
3522 NCONF_new creates a new CONF object. This works in the same way
3523 as other interfaces in OpenSSL, like the BIO interface.
3524 NCONF_dump_* dump the internal storage of the configuration file,
3525 which is useful for debugging. All other functions take the same
3526 arguments as the old CONF_* functions wth the exception of the
3527 first that must be a `CONF *' instead of a `LHASH *'.
3529 To make it easer to use the new classes with the old CONF_* functions,
3530 the function CONF_set_default_method is provided.
3533 *) Add '-tls1' option to 'openssl ciphers', which was already
3534 mentioned in the documentation but had not been implemented.
3535 (This option is not yet really useful because even the additional
3536 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
3539 *) Initial DSO code added into libcrypto for letting OpenSSL (and
3540 OpenSSL-based applications) load shared libraries and bind to
3541 them in a portable way.
3542 [Geoff Thorpe, with contributions from Richard Levitte]
3544 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
3546 *) Make sure _lrotl and _lrotr are only used with MSVC.
3548 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
3549 (the default implementation of RAND_status).
3551 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
3552 to '-clrext' (= clear extensions), as intended and documented.
3553 [Bodo Moeller; inconsistency pointed out by Michael Attili
3556 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
3557 was larger than the MD block size.
3558 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
3560 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
3561 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
3562 using the passed key: if the passed key was a private key the result
3563 of X509_print(), for example, would be to print out all the private key
3567 *) des_quad_cksum() byte order bug fix.
3568 [Ulf Möller, using the problem description in krb4-0.9.7, where
3569 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
3571 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
3573 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
3575 *) For easily testing in shell scripts whether some command
3576 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
3577 returns with exit code 0 iff no command of the given name is available.
3578 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
3579 the output goes to stdout and nothing is printed to stderr.
3580 Additional arguments are always ignored.
3582 Since for each cipher there is a command of the same name,
3583 the 'no-cipher' compilation switches can be tested this way.
3585 ('openssl no-XXX' is not able to detect pseudo-commands such
3586 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
3589 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
3592 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
3593 is set; it will be thrown away anyway because each handshake creates
3595 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
3596 to parameters -- in previous versions (since OpenSSL 0.9.3) the
3597 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
3598 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
3601 *) New s_client option -ign_eof: EOF at stdin is ignored, and
3602 'Q' and 'R' lose their special meanings (quit/renegotiate).
3603 This is part of what -quiet does; unlike -quiet, -ign_eof
3604 does not suppress any output.
3607 *) Add compatibility options to the purpose and trust code. The
3608 purpose X509_PURPOSE_ANY is "any purpose" which automatically
3609 accepts a certificate or CA, this was the previous behaviour,
3610 with all the associated security issues.
3612 X509_TRUST_COMPAT is the old trust behaviour: only and
3613 automatically trust self signed roots in certificate store. A
3614 new trust setting X509_TRUST_DEFAULT is used to specify that
3615 a purpose has no associated trust setting and it should instead
3616 use the value in the default purpose.
3619 *) Fix the PKCS#8 DSA private key code so it decodes keys again
3620 and fix a memory leak.
3623 *) In util/mkerr.pl (which implements 'make errors'), preserve
3624 reason strings from the previous version of the .c file, as
3625 the default to have only downcase letters (and digits) in
3626 automatically generated reasons codes is not always appropriate.
3629 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
3630 using strerror. Previously, ERR_reason_error_string() returned
3631 library names as reason strings for SYSerr; but SYSerr is a special
3632 case where small numbers are errno values, not library numbers.
3635 *) Add '-dsaparam' option to 'openssl dhparam' application. This
3636 converts DSA parameters into DH parameters. (When creating parameters,
3637 DSA_generate_parameters is used.)
3640 *) Include 'length' (recommended exponent length) in C code generated
3641 by 'openssl dhparam -C'.
3644 *) The second argument to set_label in perlasm was already being used
3645 so couldn't be used as a "file scope" flag. Moved to third argument
3649 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
3650 instead of RAND_bytes for encryption IVs and salts.
3653 *) Include RAND_status() into RAND_METHOD instead of implementing
3654 it only for md_rand.c Otherwise replacing the PRNG by calling
3655 RAND_set_rand_method would be impossible.
3658 *) Don't let DSA_generate_key() enter an infinite loop if the random
3659 number generation fails.
3662 *) New 'rand' application for creating pseudo-random output.
3665 *) Added configuration support for Linux/IA64
3666 [Rolf Haberrecker <rolf@suse.de>]
3668 *) Assembler module support for Mingw32.
3671 *) Shared library support for HPUX (in shlib/).
3672 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
3674 *) Shared library support for Solaris gcc.
3675 [Lutz Behnke <behnke@trustcenter.de>]
3677 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
3679 *) PKCS7_encrypt() was adding text MIME headers twice because they
3680 were added manually and by SMIME_crlf_copy().
3683 *) In bntest.c don't call BN_rand with zero bits argument.
3684 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
projects / openssl.git / blob