5 Changes between 0.9.7 and 0.9.8 [xx XXX xxxx]
7 *) ECDSA routines: under certain error conditions uninitialized BN objects
8 could be freed. Solution: make sure initialization is performed early
9 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
13 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
14 and DH_METHOD (eg. by ENGINE implementations) to override the normal
15 software implementations. For DSA and DH, parameter generation can
16 also be overriden by providing the appropriate method callbacks.
19 *) Change the "progress" mechanism used in key-generation and
20 primality testing to functions that take a new BN_GENCB pointer in
21 place of callback/argument pairs. The new API functions have "_ex"
22 postfixes and the older functions are reimplemented as wrappers for
23 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
24 declarations of the old functions to help (graceful) attempts to
25 migrate to the new functions. Also, the new key-generation API
26 functions operate on a caller-supplied key-structure and return
27 success/failure rather than returning a key or NULL - this is to
28 help make "keygen" another member function of RSA_METHOD etc.
30 Example for using the new callback interface:
32 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
36 BN_GENCB_set(&my_cb, my_callback, my_arg);
38 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
39 /* For the meaning of a, b in calls to my_callback(), see the
40 * documentation of the function that calls the callback.
41 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
42 * my_callback should return 1 if it wants BN_is_prime_ex()
43 * to continue, or 0 to stop.
48 *) Change the ZLIB compression method to be stateful, and make it
49 available to TLS with the number defined in
50 draft-ietf-tls-compression-04.txt.
53 *) Add the ASN.1 structures and functions for CertificatePair, which
54 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
56 CertificatePair ::= SEQUENCE {
57 forward [0] Certificate OPTIONAL,
58 reverse [1] Certificate OPTIONAL,
59 -- at least one of the pair shall be present -- }
61 Also implement the PEM functions to read and write certificate
62 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
64 This needed to be defined, mostly for the sake of the LDAP
65 attribute crossCertificatePair, but may prove useful elsewhere as
69 *) Make it possible to inhibit symlinking of shared libraries in
70 Makefile.shared, for Cygwin's sake.
73 *) Extend the BIGNUM API by creating new macros that behave like
76 void BN_set_sign(BIGNUM *a, int neg);
77 int BN_get_sign(const BIGNUM *a);
79 and avoid the need to access 'a->neg' directly in applications.
80 [Nils Larsch <nla@trustcenter.de>]
82 *) Implement fast modular reduction for pseudo-Mersenne primes
83 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
84 EC_GROUP_new_curve_GFp() will now automatically use this
86 [Nils Larsch <nla@trustcenter.de>]
88 *) Add new lock type (CRYPTO_LOCK_BN).
91 *) Change the ENGINE framework to automatically load engines
92 dynamically from specific directories unless they could be
93 found to already be built in or loaded. Move all the
94 current engines except for the cryptodev one to a new
96 The engines in engines/ are built as shared libraries if
97 the "shared" options was given to ./Configure or ./config.
98 Otherwise, they are inserted in libcrypto.a.
99 /usr/local/ssl/engines is the default directory for dynamic
100 engines, but that can be overriden at configure time through
101 the usual use of --prefix and/or --openssldir, and at run
102 time with the environment variable OPENSSL_ENGINES.
103 [Geoff Thorpe and Richard Levitte]
105 *) Add Makefile.shared, a helper makefile to build shared
106 libraries. Addapt Makefile.org.
109 *) Add version info to Win32 DLLs.
110 [Peter 'Luna' Runestig" <peter@runestig.com>]
112 *) Add new 'medium level' PKCS#12 API. Certificates and keys
113 can be added using this API to created arbitrary PKCS#12
114 files while avoiding the low level API.
116 New options to PKCS12_create(), key or cert can be NULL and
117 will then be omitted from the output file. The encryption
118 algorithm NIDs can be set to -1 for no encryption, the mac
119 iteration count can be set to 0 to omit the mac.
121 Enhance pkcs12 utility by making the -nokeys and -nocerts
122 options work when creating a PKCS#12 file. New option -nomac
123 to omit the mac, NONE can be set for an encryption algorithm.
124 New code is modified to use the enhanced PKCS12_create()
125 instead of the low level API.
128 *) Extend ASN1 encoder to support indefinite length constructed
129 encoding. This can output sequences tags and octet strings in
130 this form. Modify pk7_asn1.c to support indefinite length
131 encoding. This is experimental and needs additional code to
132 be useful, such as an ASN1 bio and some enhanced streaming
135 Extend template encode functionality so that tagging is passed
136 down to the template encoder.
139 *) Let 'openssl req' fail if an argument to '-newkey' is not
140 recognized instead of using RSA as a default.
143 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
144 As these are not official, they are not included in "ALL";
145 the "ECCdraft" ciphersuite group alias can be used to select them.
146 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
148 *) Add ECDH engine support.
149 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
151 *) Add ECDH in new directory crypto/ecdh/.
152 TODO: more general interface (return x coordinate, not its hash)
153 TODO: bug: pad x with leading zeros if necessary
154 [Douglas Stebila (Sun Microsystems Laboratories)]
156 *) Let BN_rand_range() abort with an error after 100 iterations
157 without success (which indicates a broken PRNG).
160 *) Change BN_mod_sqrt() so that it verifies that the input value
161 is really the square of the return value. (Previously,
162 BN_mod_sqrt would show GIGO behaviour.)
165 *) Add named elliptic curves over binary fields from X9.62, SECG,
166 and WAP/WTLS; add OIDs that were still missing.
168 [Sheueling Chang Shantz and Douglas Stebila
169 (Sun Microsystems Laboratories)]
171 *) Extend the EC library for elliptic curves over binary fields
172 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
175 EC_GF2m_simple_method
179 EC_GROUP_new_curve_GF2m
180 EC_GROUP_set_curve_GF2m
181 EC_GROUP_get_curve_GF2m
182 EC_POINT_set_affine_coordinates_GF2m
183 EC_POINT_get_affine_coordinates_GF2m
184 EC_POINT_set_compressed_coordinates_GF2m
186 Point compression for binary fields is disabled by default for
187 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
190 As binary polynomials are represented as BIGNUMs, various members
191 of the EC_GROUP and EC_POINT data structures can be shared
192 between the implementations for prime fields and binary fields;
193 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
194 are essentially identical to their ..._GFp counterparts.
195 (For simplicity, the '..._GFp' prefix has been dropped from
196 various internal method names.)
198 An internal 'field_div' method (similar to 'field_mul' and
199 'field_sqr') has been added; this is used only for binary fields.
201 [Sheueling Chang Shantz and Douglas Stebila
202 (Sun Microsystems Laboratories)]
204 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
205 through methods ('mul', 'precompute_mult').
207 The generic implementations (now internally called 'ec_wNAF_mul'
208 and 'ec_wNAF_precomputed_mult') remain the default if these
209 methods are undefined.
211 [Sheueling Chang Shantz and Douglas Stebila
212 (Sun Microsystems Laboratories)]
214 *) New function EC_GROUP_get_degree, which is defined through
215 EC_METHOD. For curves over prime fields, this returns the bit
216 length of the modulus.
218 [Sheueling Chang Shantz and Douglas Stebila
219 (Sun Microsystems Laboratories)]
221 *) New functions EC_GROUP_dup, EC_POINT_dup.
222 (These simply call ..._new and ..._copy).
224 [Sheueling Chang Shantz and Douglas Stebila
225 (Sun Microsystems Laboratories)]
227 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
228 Polynomials are represented as BIGNUMs (where the sign bit is not
229 used) in the following functions [macros]:
232 BN_GF2m_sub [= BN_GF2m_add]
233 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
234 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
235 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
237 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
238 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
239 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
240 BN_GF2m_cmp [= BN_ucmp]
242 (Note that only the 'mod' functions are actually for fields GF(2^m).
243 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
245 For some functions, an the irreducible polynomial defining a
246 field can be given as an 'unsigned int[]' with strictly
247 decreasing elements giving the indices of those bits that are set;
248 i.e., p[] represents the polynomial
249 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
251 p[0] > p[1] > ... > p[k] = 0.
252 This applies to the following functions:
257 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
258 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
261 BN_GF2m_mod_solve_quad_arr
265 Conversion can be performed by the following functions:
270 bntest.c has additional tests for binary polynomial arithmetic.
272 Two implementations for BN_GF2m_mod_div() are available.
273 The default algorithm simply uses BN_GF2m_mod_inv() and
274 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
275 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
276 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
278 [Sheueling Chang Shantz and Douglas Stebila
279 (Sun Microsystems Laboratories)]
281 *) Add new error code 'ERR_R_DISABLED' that can be used when some
282 functionality is disabled at compile-time.
283 [Douglas Stebila <douglas.stebila@sun.com>]
285 *) Change default behaviour of 'openssl asn1parse' so that more
286 information is visible when viewing, e.g., a certificate:
288 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
289 mode the content of non-printable OCTET STRINGs is output in a
290 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
291 avoid the appearance of a printable string.
292 [Nils Larsch <nla@trustcenter.de>]
294 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
296 EC_GROUP_set_asn1_flag()
297 EC_GROUP_get_asn1_flag()
298 EC_GROUP_set_point_conversion_form()
299 EC_GROUP_get_point_conversion_form()
300 These control ASN1 encoding details:
301 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
302 has been set to OPENSSL_EC_NAMED_CURVE.
303 - Points are encoded in uncompressed form by default; options for
304 asn1_for are as for point2oct, namely
305 POINT_CONVERSION_COMPRESSED
306 POINT_CONVERSION_UNCOMPRESSED
307 POINT_CONVERSION_HYBRID
309 Also add 'seed' and 'seed_len' members to EC_GROUP with access
313 EC_GROUP_get_seed_len()
314 This is used only for ASN1 purposes (so far).
315 [Nils Larsch <nla@trustcenter.de>]
317 *) Add 'field_type' member to EC_METHOD, which holds the NID
318 of the appropriate field type OID. The new function
319 EC_METHOD_get_field_type() returns this value.
320 [Nils Larsch <nla@trustcenter.de>]
327 providing useful interfaces to EC_POINT_point2oct() and
328 EC_POINT_oct2point().
329 [Nils Larsch <nla@trustcenter.de>]
331 *) Change internals of the EC library so that the functions
332 EC_GROUP_set_generator()
333 EC_GROUP_get_generator()
335 EC_GROUP_get_cofactor()
336 are implemented directly in crypto/ec/ec_lib.c and not dispatched
337 to methods, which would lead to unnecessary code duplication when
338 adding different types of curves.
339 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
341 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
342 arithmetic, and such that modified wNAFs are generated
343 (which avoid length expansion in many cases).
346 *) Add a function EC_GROUP_check_discriminant() (defined via
347 EC_METHOD) that verifies that the curve discriminant is non-zero.
349 Add a function EC_GROUP_check() that makes some sanity tests
350 on a EC_GROUP, its generator and order. This includes
351 EC_GROUP_check_discriminant().
352 [Nils Larsch <nla@trustcenter.de>]
354 *) Add ECDSA in new directory crypto/ecdsa/.
356 Add applications 'openssl ecparam' and 'openssl ecdsa'
357 (these are based on 'openssl dsaparam' and 'openssl dsa').
359 ECDSA support is also included in various other files across the
360 library. Most notably,
361 - 'openssl req' now has a '-newkey ecdsa:file' option;
362 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
363 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
364 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
365 them suitable for ECDSA where domain parameters must be
366 extracted before the specific public key;
367 - ECDSA engine support has been added.
368 [Nils Larsch <nla@trustcenter.de>]
370 *) Include some named elliptic curves, and add OIDs from X9.62,
371 SECG, and WAP/WTLS. Each curve can be obtained from the new
373 EC_GROUP_new_by_nid(),
374 and the list of available named curves can be obtained with
375 EC_get_builtin_curves().
376 Also add a 'curve_name' member to EC_GROUP objects, which can be
380 [Nils Larsch <nla@trustcenter.de, Bodo Moeller]
382 Changes between 0.9.7 and 0.9.7a [XX xxx 2003]
384 *) Under Win32 gmtime() can return NULL: check return value in
385 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
388 *) DSA routines: under certain error conditions uninitialized BN objects
389 could be freed. Solution: make sure initialization is performed early
390 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
391 Nils Larsch <nla@trustcenter.de> via PR#459)
394 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
395 checked on reconnect on the client side, therefore session resumption
396 could still fail with a "ssl session id is different" error. This
397 behaviour is masked when SSL_OP_ALL is used due to
398 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
399 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
403 *) IA-32 assembler support enhancements: unified ELF targets, support
404 for SCO/Caldera platforms, fix for Cygwin shared build.
407 *) Add support for FreeBSD on sparc64. As a consequence, support for
408 FreeBSD on non-x86 processors is separate from x86 processors on
409 the config script, much like the NetBSD support.
410 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
412 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
414 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
415 code (06) was taken as the first octet of the session ID and the last
416 octet was ignored consequently. As a result SSLv2 client side session
417 caching could not have worked due to the session ID mismatch between
419 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
423 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
424 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
428 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
429 seems that in spite of existing for more than a year, many application
430 author have done nothing to provide the necessary callbacks, which
431 means that this particular engine will not work properly anywhere.
432 This is a very unfortunate situation which forces us, in the name
433 of usability, to give the hw_ncipher.c a static lock, which is part
435 NOTE: This is for the 0.9.7 series ONLY. This hack will never
436 appear in 0.9.8 or later. We EXPECT application authors to have
437 dealt properly with this when 0.9.8 is released (unless we actually
438 make such changes in the libcrypto locking code that changes will
439 have to be made anyway).
442 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
443 octets have been read, EOF or an error occurs. Without this change
444 some truncated ASN1 structures will not produce an error.
447 *) Disable Heimdal support, since it hasn't been fully implemented.
448 Still give the possibility to force the use of Heimdal, but with
449 warnings and a request that patches get sent to openssl-dev.
452 *) Add the VC-CE target, introduce the WINCE sysname, and add
453 INSTALL.WCE and appropriate conditionals to make it build.
454 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
456 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
457 cygssl-x.y.z.dll, where x, y and z are the major, minor and
458 edit numbers of the version.
459 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
461 *) Introduce safe string copy and catenation functions
462 (BUF_strlcpy() and BUF_strlcat()).
463 [Ben Laurie (CHATS) and Richard Levitte]
465 *) Avoid using fixed-size buffers for one-line DNs.
468 *) Add BUF_MEM_grow_clean() to avoid information leakage when
469 resizing buffers containing secrets, and use where appropriate.
472 *) Avoid using fixed size buffers for configuration file location.
475 *) Avoid filename truncation for various CA files.
478 *) Use sizeof in preference to magic numbers.
481 *) Avoid filename truncation in cert requests.
484 *) Add assertions to check for (supposedly impossible) buffer
488 *) Don't cache truncated DNS entries in the local cache (this could
489 potentially lead to a spoofing attack).
492 *) Fix various buffers to be large enough for hex/decimal
493 representations in a platform independent manner.
496 *) Add CRYPTO_realloc_clean() to avoid information leakage when
497 resizing buffers containing secrets, and use where appropriate.
500 *) Add BIO_indent() to avoid much slightly worrying code to do
504 *) Convert sprintf()/BIO_puts() to BIO_printf().
507 *) buffer_gets() could terminate with the buffer only half
511 *) Add assertions to prevent user-supplied crypto functions from
512 overflowing internal buffers by having large block sizes, etc.
515 *) New OPENSSL_assert() macro (similar to assert(), but enabled
519 *) Eliminate unused copy of key in RC4.
522 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
525 *) Fix off-by-one error in EGD path.
528 *) If RANDFILE path is too long, ignore instead of truncating.
531 *) Eliminate unused and incorrectly sized X.509 structure
535 *) Eliminate unused and dangerous function knumber().
538 *) Eliminate unused and dangerous structure, KSSL_ERR.
541 *) Protect against overlong session ID context length in an encoded
542 session object. Since these are local, this does not appear to be
546 *) Change from security patch (see 0.9.6e below) that did not affect
547 the 0.9.6 release series:
549 Remote buffer overflow in SSL3 protocol - an attacker could
550 supply an oversized master key in Kerberos-enabled versions.
554 *) Change the SSL kerb5 codes to match RFC 2712.
557 *) Make -nameopt work fully for req and add -reqopt switch.
558 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
560 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
561 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
563 *) Make sure tests can be performed even if the corresponding algorithms
564 have been removed entirely. This was also the last step to make
565 OpenSSL compilable with DJGPP under all reasonable conditions.
566 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
568 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
569 to allow version independent disabling of normally unselected ciphers,
570 which may be activated as a side-effect of selecting a single cipher.
572 (E.g., cipher list string "RSA" enables ciphersuites that are left
573 out of "ALL" because they do not provide symmetric encryption.
574 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
575 [Lutz Jaenicke, Bodo Moeller]
577 *) Add appropriate support for separate platform-dependent build
578 directories. The recommended way to make a platform-dependent
579 build directory is the following (tested on Linux), maybe with
582 # Place yourself outside of the OpenSSL source tree. In
583 # this example, the environment variable OPENSSL_SOURCE
584 # is assumed to contain the absolute OpenSSL source directory.
585 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
586 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
587 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
588 mkdir -p `dirname $F`
589 ln -s $OPENSSL_SOURCE/$F $F
592 To be absolutely sure not to disturb the source tree, a "make clean"
593 is a good thing. If it isn't successfull, don't worry about it,
594 it probably means the source directory is very clean.
597 *) Make sure any ENGINE control commands make local copies of string
598 pointers passed to them whenever necessary. Otherwise it is possible
599 the caller may have overwritten (or deallocated) the original string
600 data when a later ENGINE operation tries to use the stored values.
601 [Götz Babin-Ebell <babinebell@trustcenter.de>]
603 *) Improve diagnostics in file reading and command-line digests.
604 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
606 *) Add AES modes CFB and OFB to the object database. Correct an
607 error in AES-CFB decryption.
610 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
611 allows existing EVP_CIPHER_CTX structures to be reused after
612 calling EVP_*Final(). This behaviour is used by encryption
613 BIOs and some applications. This has the side effect that
614 applications must explicitly clean up cipher contexts with
615 EVP_CIPHER_CTX_cleanup() or they will leak memory.
618 *) Check the values of dna and dnb in bn_mul_recursive before calling
619 bn_mul_comba (a non zero value means the a or b arrays do not contain
620 n2 elements) and fallback to bn_mul_normal if either is not zero.
623 *) Fix escaping of non-ASCII characters when using the -subj option
624 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
627 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
628 form for "surname", serialNumber has no short form.
629 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
630 therefore remove "mail" short name for "internet 7".
631 The OID for unique identifiers in X509 certificates is
632 x500UniqueIdentifier, not uniqueIdentifier.
633 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
636 *) Add an "init" command to the ENGINE config module and auto initialize
637 ENGINEs. Without any "init" command the ENGINE will be initialized
638 after all ctrl commands have been executed on it. If init=1 the
639 ENGINE is initailized at that point (ctrls before that point are run
640 on the uninitialized ENGINE and after on the initialized one). If
641 init=0 then the ENGINE will not be iniatialized at all.
644 *) Fix the 'app_verify_callback' interface so that the user-defined
645 argument is actually passed to the callback: In the
646 SSL_CTX_set_cert_verify_callback() prototype, the callback
647 declaration has been changed from
650 int (*cb)(X509_STORE_CTX *,void *);
651 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
652 i=s->ctx->app_verify_callback(&ctx)
653 has been changed into
654 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
656 To update applications using SSL_CTX_set_cert_verify_callback(),
657 a dummy argument can be added to their callback functions.
658 [D. K. Smetters <smetters@parc.xerox.com>]
660 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
661 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
663 *) Add and OPENSSL_LOAD_CONF define which will cause
664 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
665 This allows older applications to transparently support certain
666 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
667 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
668 load the config file and OPENSSL_add_all_algorithms_conf() which will
669 always load it have also been added.
672 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
673 Adjust NIDs and EVP layer.
674 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
676 *) Config modules support in openssl utility.
678 Most commands now load modules from the config file,
679 though in a few (such as version) this isn't done
680 because it couldn't be used for anything.
682 In the case of ca and req the config file used is
683 the same as the utility itself: that is the -config
684 command line option can be used to specify an
688 *) Move default behaviour from OPENSSL_config(). If appname is NULL
689 use "openssl_conf" if filename is NULL use default openssl config file.
692 *) Add an argument to OPENSSL_config() to allow the use of an alternative
693 config section name. Add a new flag to tolerate a missing config file
694 and move code to CONF_modules_load_file().
697 *) Support for crypto accelerator cards from Accelerated Encryption
698 Processing, www.aep.ie. (Use engine 'aep')
699 The support was copied from 0.9.6c [engine] and adapted/corrected
700 to work with the new engine framework.
701 [AEP Inc. and Richard Levitte]
703 *) Support for SureWare crypto accelerator cards from Baltimore
704 Technologies. (Use engine 'sureware')
705 The support was copied from 0.9.6c [engine] and adapted
706 to work with the new engine framework.
709 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
710 make the newer ENGINE framework commands for the CHIL engine work.
711 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
713 *) Make it possible to produce shared libraries on ReliantUNIX.
714 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
716 *) Add the configuration target debug-linux-ppro.
717 Make 'openssl rsa' use the general key loading routines
718 implemented in apps.c, and make those routines able to
719 handle the key format FORMAT_NETSCAPE and the variant
721 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
723 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
724 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
726 *) Add -keyform to rsautl, and document -engine.
727 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
729 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
730 BIO_R_NO_SUCH_FILE error code rather than the generic
731 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
736 ERR_peek_last_error_line
737 ERR_peek_last_error_line_data.
741 ERR_peek_error_line_data,
742 but report on the latest error recorded rather than the first one
743 still in the error queue.
744 [Ben Laurie, Bodo Moeller]
746 *) default_algorithms option in ENGINE config module. This allows things
748 default_algorithms = ALL
749 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
752 *) Prelminary ENGINE config module.
755 *) New experimental application configuration code.
758 *) Change the AES code to follow the same name structure as all other
759 symmetric ciphers, and behave the same way. Move everything to
760 the directory crypto/aes, thereby obsoleting crypto/rijndael.
761 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
763 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
764 [Ben Laurie and Theo de Raadt]
766 *) Add option to output public keys in req command.
767 [Massimiliano Pala madwolf@openca.org]
769 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
770 (up to about 10% better than before for P-192 and P-224).
773 *) New functions/macros
775 SSL_CTX_set_msg_callback(ctx, cb)
776 SSL_CTX_set_msg_callback_arg(ctx, arg)
777 SSL_set_msg_callback(ssl, cb)
778 SSL_set_msg_callback_arg(ssl, arg)
780 to request calling a callback function
782 void cb(int write_p, int version, int content_type,
783 const void *buf, size_t len, SSL *ssl, void *arg)
785 whenever a protocol message has been completely received
786 (write_p == 0) or sent (write_p == 1). Here 'version' is the
787 protocol version according to which the SSL library interprets
788 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
789 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
790 the content type as defined in the SSL 3.0/TLS 1.0 protocol
791 specification (change_cipher_spec(20), alert(21), handshake(22)).
792 'buf' and 'len' point to the actual message, 'ssl' to the
793 SSL object, and 'arg' is the application-defined value set by
794 SSL[_CTX]_set_msg_callback_arg().
796 'openssl s_client' and 'openssl s_server' have new '-msg' options
797 to enable a callback that displays all protocol messages.
800 *) Change the shared library support so shared libraries are built as
801 soon as the corresponding static library is finished, and thereby get
802 openssl and the test programs linked against the shared library.
803 This still only happens when the keyword "shard" has been given to
804 the configuration scripts.
806 NOTE: shared library support is still an experimental thing, and
807 backward binary compatibility is still not guaranteed.
808 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
810 *) Add support for Subject Information Access extension.
811 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
813 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
814 additional bytes when new memory had to be allocated, not just
815 when reusing an existing buffer.
818 *) New command line and configuration option 'utf8' for the req command.
819 This allows field values to be specified as UTF8 strings.
822 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
823 runs for the former and machine-readable output for the latter.
826 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
827 of the e-mail address in the DN (i.e., it will go into a certificate
828 extension only). The new configuration file option 'email_in_dn = no'
830 [Massimiliano Pala madwolf@openca.org]
832 *) Change all functions with names starting with des_ to be starting
833 with DES_ instead. Add wrappers that are compatible with libdes,
834 but are named _ossl_old_des_*. Finally, add macros that map the
835 des_* symbols to the corresponding _ossl_old_des_* if libdes
836 compatibility is desired. If OpenSSL 0.9.6c compatibility is
837 desired, the des_* symbols will be mapped to DES_*, with one
840 Since we provide two compatibility mappings, the user needs to
841 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
842 compatibility is desired. The default (i.e., when that macro
843 isn't defined) is OpenSSL 0.9.6c compatibility.
845 There are also macros that enable and disable the support of old
846 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
847 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
848 are defined, the default will apply: to support the old des routines.
850 In either case, one must include openssl/des.h to get the correct
851 definitions. Do not try to just include openssl/des_old.h, that
854 NOTE: This is a major break of an old API into a new one. Software
855 authors are encouraged to switch to the DES_ style functions. Some
856 time in the future, des_old.h and the libdes compatibility functions
857 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
858 default), and then completely removed.
861 *) Test for certificates which contain unsupported critical extensions.
862 If such a certificate is found during a verify operation it is
863 rejected by default: this behaviour can be overridden by either
864 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
865 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
866 X509_supported_extension() has also been added which returns 1 if a
867 particular extension is supported.
870 *) Modify the behaviour of EVP cipher functions in similar way to digests
871 to retain compatibility with existing code.
874 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
875 compatibility with existing code. In particular the 'ctx' parameter does
876 not have to be to be initialized before the call to EVP_DigestInit() and
877 it is tidied up after a call to EVP_DigestFinal(). New function
878 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
879 EVP_MD_CTX_copy() changed to not require the destination to be
880 initialized valid and new function EVP_MD_CTX_copy_ex() added which
881 requires the destination to be valid.
883 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
884 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
887 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
888 so that complete 'Handshake' protocol structures are kept in memory
889 instead of overwriting 'msg_type' and 'length' with 'body' data.
892 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
893 [Massimo Santin via Richard Levitte]
895 *) Major restructuring to the underlying ENGINE code. This includes
896 reduction of linker bloat, separation of pure "ENGINE" manipulation
897 (initialisation, etc) from functionality dealing with implementations
898 of specific crypto iterfaces. This change also introduces integrated
899 support for symmetric ciphers and digest implementations - so ENGINEs
900 can now accelerate these by providing EVP_CIPHER and EVP_MD
901 implementations of their own. This is detailed in crypto/engine/README
902 as it couldn't be adequately described here. However, there are a few
903 API changes worth noting - some RSA, DSA, DH, and RAND functions that
904 were changed in the original introduction of ENGINE code have now
905 reverted back - the hooking from this code to ENGINE is now a good
906 deal more passive and at run-time, operations deal directly with
907 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
908 dereferencing through an ENGINE pointer any more. Also, the ENGINE
909 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
910 they were not being used by the framework as there is no concept of a
911 BIGNUM_METHOD and they could not be generalised to the new
912 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
913 ENGINE_cpy() has been removed as it cannot be consistently defined in
917 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
920 *) Change mkdef.pl to sort symbols that get the same entry number,
921 and make sure the automatically generated functions ERR_load_*
922 become part of libeay.num as well.
925 *) New function SSL_renegotiate_pending(). This returns true once
926 renegotiation has been requested (either SSL_renegotiate() call
927 or HelloRequest/ClientHello receveived from the peer) and becomes
928 false once a handshake has been completed.
929 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
930 sends a HelloRequest, but does not ensure that a handshake takes
931 place. SSL_renegotiate_pending() is useful for checking if the
932 client has followed the request.)
935 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
936 By default, clients may request session resumption even during
937 renegotiation (if session ID contexts permit); with this option,
938 session resumption is possible only in the first handshake.
940 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
941 more bits available for options that should not be part of
942 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
945 *) Add some demos for certificate and certificate request creation.
948 *) Make maximum certificate chain size accepted from the peer application
949 settable (SSL*_get/set_max_cert_list()), as proposed by
950 "Douglas E. Engert" <deengert@anl.gov>.
953 *) Add support for shared libraries for Unixware-7
954 (Boyd Lynn Gerber <gerberb@zenez.com>).
957 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
958 be done prior to destruction. Use this to unload error strings from
959 ENGINEs that load their own error strings. NB: This adds two new API
960 functions to "get" and "set" this destroy handler in an ENGINE.
963 *) Alter all existing ENGINE implementations (except "openssl" and
964 "openbsd") to dynamically instantiate their own error strings. This
965 makes them more flexible to be built both as statically-linked ENGINEs
966 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
967 Also, add stub code to each that makes building them as self-contained
968 shared-libraries easier (see README.ENGINE).
971 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
972 implementations into applications that are completely implemented in
973 self-contained shared-libraries. The "dynamic" ENGINE exposes control
974 commands that can be used to configure what shared-library to load and
975 to control aspects of the way it is handled. Also, made an update to
976 the README.ENGINE file that brings its information up-to-date and
977 provides some information and instructions on the "dynamic" ENGINE
978 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
981 *) Make it possible to unload ranges of ERR strings with a new
982 "ERR_unload_strings" function.
985 *) Add a copy() function to EVP_MD.
988 *) Make EVP_MD routines take a context pointer instead of just the
989 md_data void pointer.
992 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
993 that the digest can only process a single chunk of data
994 (typically because it is provided by a piece of
995 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
996 is only going to provide a single chunk of data, and hence the
997 framework needn't accumulate the data for oneshot drivers.
1000 *) As with "ERR", make it possible to replace the underlying "ex_data"
1001 functions. This change also alters the storage and management of global
1002 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
1003 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
1004 index counters. The API functions that use this state have been changed
1005 to take a "class_index" rather than pointers to the class's local STACK
1006 and counter, and there is now an API function to dynamically create new
1007 classes. This centralisation allows us to (a) plug a lot of the
1008 thread-safety problems that existed, and (b) makes it possible to clean
1009 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
1010 such data would previously have always leaked in application code and
1011 workarounds were in place to make the memory debugging turn a blind eye
1012 to it. Application code that doesn't use this new function will still
1013 leak as before, but their memory debugging output will announce it now
1014 rather than letting it slide.
1016 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
1017 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
1018 has a return value to indicate success or failure.
1021 *) Make it possible to replace the underlying "ERR" functions such that the
1022 global state (2 LHASH tables and 2 locks) is only used by the "default"
1023 implementation. This change also adds two functions to "get" and "set"
1024 the implementation prior to it being automatically set the first time
1025 any other ERR function takes place. Ie. an application can call "get",
1026 pass the return value to a module it has just loaded, and that module
1027 can call its own "set" function using that value. This means the
1028 module's "ERR" operations will use (and modify) the error state in the
1029 application and not in its own statically linked copy of OpenSSL code.
1032 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
1033 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
1034 the operation, and provides a more encapsulated way for external code
1035 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
1036 to use these functions rather than manually incrementing the counts.
1038 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
1041 *) Add EVP test program.
1044 *) Add symmetric cipher support to ENGINE. Expect the API to change!
1047 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
1048 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
1049 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
1050 These allow a CRL to be built without having to access X509_CRL fields
1051 directly. Modify 'ca' application to use new functions.
1054 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
1055 bug workarounds. Rollback attack detection is a security feature.
1056 The problem will only arise on OpenSSL servers when TLSv1 is not
1057 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
1058 Software authors not wanting to support TLSv1 will have special reasons
1059 for their choice and can explicitly enable this option.
1060 [Bodo Moeller, Lutz Jaenicke]
1062 *) Rationalise EVP so it can be extended: don't include a union of
1063 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
1064 (similar to those existing for EVP_CIPHER_CTX).
1069 EVP_MD_CTX_init(&md); /* new function call */
1070 EVP_DigestInit(&md, EVP_sha1());
1071 EVP_DigestUpdate(&md, in, len);
1072 EVP_DigestFinal(&md, out, NULL);
1073 EVP_MD_CTX_cleanup(&md); /* new function call */
1077 *) Make DES key schedule conform to the usual scheme, as well as
1078 correcting its structure. This means that calls to DES functions
1079 now have to pass a pointer to a des_key_schedule instead of a
1080 plain des_key_schedule (which was actually always a pointer
1083 des_key_schedule ks;
1085 des_set_key_checked(..., &ks);
1086 des_ncbc_encrypt(..., &ks, ...);
1088 (Note that a later change renames 'des_...' into 'DES_...'.)
1091 *) Initial reduction of linker bloat: the use of some functions, such as
1092 PEM causes large amounts of unused functions to be linked in due to
1093 poor organisation. For example pem_all.c contains every PEM function
1094 which has a knock on effect of linking in large amounts of (unused)
1095 ASN1 code. Grouping together similar functions and splitting unrelated
1096 functions prevents this.
1099 *) Cleanup of EVP macros.
1102 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
1103 correct _ecb suffix.
1106 *) Add initial OCSP responder support to ocsp application. The
1107 revocation information is handled using the text based index
1108 use by the ca application. The responder can either handle
1109 requests generated internally, supplied in files (for example
1110 via a CGI script) or using an internal minimal server.
1113 *) Add configuration choices to get zlib compression for TLS.
1116 *) Changes to Kerberos SSL for RFC 2712 compliance:
1117 1. Implemented real KerberosWrapper, instead of just using
1118 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
1119 2. Implemented optional authenticator field of KerberosWrapper.
1121 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
1122 and authenticator structs; see crypto/krb5/.
1124 Generalized Kerberos calls to support multiple Kerberos libraries.
1125 [Vern Staats <staatsvr@asc.hpc.mil>,
1126 Jeffrey Altman <jaltman@columbia.edu>
1127 via Richard Levitte]
1129 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
1130 already does with RSA. testdsa.h now has 'priv_key/pub_key'
1131 values for each of the key sizes rather than having just
1132 parameters (and 'speed' generating keys each time).
1135 *) Speed up EVP routines.
1138 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
1139 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
1140 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
1141 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
1143 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
1144 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
1145 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
1148 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
1150 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
1153 *) Added the OS2-EMX target.
1154 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
1156 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
1157 to support NCONF routines in extension code. New function CONF_set_nconf()
1158 to allow functions which take an NCONF to also handle the old LHASH
1159 structure: this means that the old CONF compatible routines can be
1160 retained (in particular wrt extensions) without having to duplicate the
1161 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
1164 *) Enhance the general user interface with mechanisms for inner control
1165 and with possibilities to have yes/no kind of prompts.
1168 *) Change all calls to low level digest routines in the library and
1169 applications to use EVP. Add missing calls to HMAC_cleanup() and
1170 don't assume HMAC_CTX can be copied using memcpy().
1171 [Verdon Walker <VWalker@novell.com>, Steve Henson]
1173 *) Add the possibility to control engines through control names but with
1174 arbitrary arguments instead of just a string.
1175 Change the key loaders to take a UI_METHOD instead of a callback
1176 function pointer. NOTE: this breaks binary compatibility with earlier
1177 versions of OpenSSL [engine].
1178 Adapt the nCipher code for these new conditions and add a card insertion
1182 *) Enhance the general user interface with mechanisms to better support
1183 dialog box interfaces, application-defined prompts, the possibility
1184 to use defaults (for example default passwords from somewhere else)
1185 and interrupts/cancellations.
1188 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
1189 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
1192 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
1193 tidy up some unnecessarily weird code in 'sk_new()').
1194 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
1196 *) Change the key loading routines for ENGINEs to use the same kind
1197 callback (pem_password_cb) as all other routines that need this
1201 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
1202 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
1203 than this minimum value is recommended.
1206 *) New random seeder for OpenVMS, using the system process statistics
1207 that are easily reachable.
1210 *) Windows apparently can't transparently handle global
1211 variables defined in DLLs. Initialisations such as:
1213 const ASN1_ITEM *it = &ASN1_INTEGER_it;
1215 wont compile. This is used by the any applications that need to
1216 declare their own ASN1 modules. This was fixed by adding the option
1217 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
1218 needed for static libraries under Win32.
1221 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
1222 setting of purpose and trust fields. New X509_STORE trust and
1223 purpose functions and tidy up setting in other SSL functions.
1226 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
1227 structure. These are inherited by X509_STORE_CTX when it is
1228 initialised. This allows various defaults to be set in the
1229 X509_STORE structure (such as flags for CRL checking and custom
1230 purpose or trust settings) for functions which only use X509_STORE_CTX
1231 internally such as S/MIME.
1233 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
1234 trust settings if they are not set in X509_STORE. This allows X509_STORE
1235 purposes and trust (in S/MIME for example) to override any set by default.
1237 Add command line options for CRL checking to smime, s_client and s_server
1241 *) Initial CRL based revocation checking. If the CRL checking flag(s)
1242 are set then the CRL is looked up in the X509_STORE structure and
1243 its validity and signature checked, then if the certificate is found
1244 in the CRL the verify fails with a revoked error.
1246 Various new CRL related callbacks added to X509_STORE_CTX structure.
1248 Command line options added to 'verify' application to support this.
1250 This needs some additional work, such as being able to handle multiple
1251 CRLs with different times, extension based lookup (rather than just
1252 by subject name) and ultimately more complete V2 CRL extension
1256 *) Add a general user interface API (crypto/ui/). This is designed
1257 to replace things like des_read_password and friends (backward
1258 compatibility functions using this new API are provided).
1259 The purpose is to remove prompting functions from the DES code
1260 section as well as provide for prompting through dialog boxes in
1261 a window system and the like.
1264 *) Add "ex_data" support to ENGINE so implementations can add state at a
1265 per-structure level rather than having to store it globally.
1268 *) Make it possible for ENGINE structures to be copied when retrieved by
1269 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
1270 This causes the "original" ENGINE structure to act like a template,
1271 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
1272 operational state can be localised to each ENGINE structure, despite the
1273 fact they all share the same "methods". New ENGINE structures returned in
1274 this case have no functional references and the return value is the single
1275 structural reference. This matches the single structural reference returned
1276 by ENGINE_by_id() normally, when it is incremented on the pre-existing
1280 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
1281 needs to match any other type at all we need to manually clear the
1285 *) Changes to the "openssl engine" utility to include;
1286 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
1287 about an ENGINE's available control commands.
1288 - executing control commands from command line arguments using the
1289 '-pre' and '-post' switches. '-post' is only used if '-t' is
1290 specified and the ENGINE is successfully initialised. The syntax for
1291 the individual commands are colon-separated, for example;
1292 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
1295 *) New dynamic control command support for ENGINEs. ENGINEs can now
1296 declare their own commands (numbers), names (strings), descriptions,
1297 and input types for run-time discovery by calling applications. A
1298 subset of these commands are implicitly classed as "executable"
1299 depending on their input type, and only these can be invoked through
1300 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
1301 can be based on user input, config files, etc). The distinction is
1302 that "executable" commands cannot return anything other than a boolean
1303 result and can only support numeric or string input, whereas some
1304 discoverable commands may only be for direct use through
1305 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
1306 pointers, or other custom uses. The "executable" commands are to
1307 support parameterisations of ENGINE behaviour that can be
1308 unambiguously defined by ENGINEs and used consistently across any
1309 OpenSSL-based application. Commands have been added to all the
1310 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
1311 control over shared-library paths without source code alterations.
1314 *) Changed all ENGINE implementations to dynamically allocate their
1315 ENGINEs rather than declaring them statically. Apart from this being
1316 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
1317 this also allows the implementations to compile without using the
1318 internal engine_int.h header.
1321 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
1322 'const' value. Any code that should be able to modify a RAND_METHOD
1323 should already have non-const pointers to it (ie. they should only
1324 modify their own ones).
1327 *) Made a variety of little tweaks to the ENGINE code.
1328 - "atalla" and "ubsec" string definitions were moved from header files
1329 to C code. "nuron" string definitions were placed in variables
1330 rather than hard-coded - allowing parameterisation of these values
1331 later on via ctrl() commands.
1332 - Removed unused "#if 0"'d code.
1333 - Fixed engine list iteration code so it uses ENGINE_free() to release
1334 structural references.
1335 - Constified the RAND_METHOD element of ENGINE structures.
1336 - Constified various get/set functions as appropriate and added
1337 missing functions (including a catch-all ENGINE_cpy that duplicates
1338 all ENGINE values onto a new ENGINE except reference counts/state).
1339 - Removed NULL parameter checks in get/set functions. Setting a method
1340 or function to NULL is a way of cancelling out a previously set
1341 value. Passing a NULL ENGINE parameter is just plain stupid anyway
1342 and doesn't justify the extra error symbols and code.
1343 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
1344 flags from engine_int.h to engine.h.
1345 - Changed prototypes for ENGINE handler functions (init(), finish(),
1346 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
1349 *) Implement binary inversion algorithm for BN_mod_inverse in addition
1350 to the algorithm using long division. The binary algorithm can be
1351 used only if the modulus is odd. On 32-bit systems, it is faster
1352 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
1353 roughly 5-15% for 256-bit moduli), so we use it only for moduli
1354 up to 450 bits. In 64-bit environments, the binary algorithm
1355 appears to be advantageous for much longer moduli; here we use it
1356 for moduli up to 2048 bits.
1359 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
1360 could not support the combine flag in choice fields.
1363 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
1364 extensions from a certificate request to the certificate.
1367 *) Allow multiple 'certopt' and 'nameopt' options to be separated
1368 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
1369 file: this allows the display of the certificate about to be
1370 signed to be customised, to allow certain fields to be included
1371 or excluded and extension details. The old system didn't display
1372 multicharacter strings properly, omitted fields not in the policy
1373 and couldn't display additional details such as extensions.
1376 *) Function EC_POINTs_mul for multiple scalar multiplication
1377 of an arbitrary number of elliptic curve points
1378 \sum scalars[i]*points[i],
1379 optionally including the generator defined for the EC_GROUP:
1380 scalar*generator + \sum scalars[i]*points[i].
1382 EC_POINT_mul is a simple wrapper function for the typical case
1383 that the point list has just one item (besides the optional
1387 *) First EC_METHODs for curves over GF(p):
1389 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
1390 operations and provides various method functions that can also
1391 operate with faster implementations of modular arithmetic.
1393 EC_GFp_mont_method() reuses most functions that are part of
1394 EC_GFp_simple_method, but uses Montgomery arithmetic.
1396 [Bodo Moeller; point addition and point doubling
1397 implementation directly derived from source code provided by
1398 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
1400 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
1401 crypto/ec/ec_lib.c):
1403 Curves are EC_GROUP objects (with an optional group generator)
1404 based on EC_METHODs that are built into the library.
1406 Points are EC_POINT objects based on EC_GROUP objects.
1408 Most of the framework would be able to handle curves over arbitrary
1409 finite fields, but as there are no obvious types for fields other
1410 than GF(p), some functions are limited to that for now.
1413 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
1414 that the file contains a complete HTTP response.
1417 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
1418 change the def and num file printf format specifier from "%-40sXXX"
1419 to "%-39s XXX". The latter will always guarantee a space after the
1420 field while the former will cause them to run together if the field
1421 is 40 of more characters long.
1424 *) Constify the cipher and digest 'method' functions and structures
1425 and modify related functions to take constant EVP_MD and EVP_CIPHER
1429 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
1430 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
1433 *) Modify EVP_Digest*() routines so they now return values. Although the
1434 internal software routines can never fail additional hardware versions
1438 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
1440 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
1441 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
1444 ERR_R_NESTED_ASN1_ERROR
1446 ERR_R_MISSING_ASN1_EOS
1447 were 4 .. 9, conflicting with
1448 ERR_LIB_RSA (= ERR_R_RSA_LIB)
1450 ERR_LIB_PEM (= ERR_R_PEM_LIB).
1451 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
1453 Add new error code 'ERR_R_INTERNAL_ERROR'.
1456 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
1460 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
1461 sets the subject name for a new request or supersedes the
1462 subject name in a given request. Formats that can be parsed are
1463 'CN=Some Name, OU=myOU, C=IT'
1465 'CN=Some Name/OU=myOU/C=IT'.
1467 Add options '-batch' and '-verbose' to 'openssl req'.
1468 [Massimiliano Pala <madwolf@hackmasters.net>]
1470 *) Introduce the possibility to access global variables through
1471 functions on platform were that's the best way to handle exporting
1472 global variables in shared libraries. To enable this functionality,
1473 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
1474 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
1475 is normally done by Configure or something similar).
1477 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
1478 in the source file (foo.c) like this:
1480 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
1481 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
1483 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
1484 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
1486 OPENSSL_DECLARE_GLOBAL(int,foo);
1487 #define foo OPENSSL_GLOBAL_REF(foo)
1488 OPENSSL_DECLARE_GLOBAL(double,bar);
1489 #define bar OPENSSL_GLOBAL_REF(bar)
1491 The #defines are very important, and therefore so is including the
1492 header file everywhere where the defined globals are used.
1494 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
1495 of ASN.1 items, but that structure is a bit different.
1497 The largest change is in util/mkdef.pl which has been enhanced with
1498 better and easier to understand logic to choose which symbols should
1499 go into the Windows .def files as well as a number of fixes and code
1500 cleanup (among others, algorithm keywords are now sorted
1501 lexicographically to avoid constant rewrites).
1504 *) In BN_div() keep a copy of the sign of 'num' before writing the
1505 result to 'rm' because if rm==num the value will be overwritten
1506 and produce the wrong result if 'num' is negative: this caused
1507 problems with BN_mod() and BN_nnmod().
1510 *) Function OCSP_request_verify(). This checks the signature on an
1511 OCSP request and verifies the signer certificate. The signer
1512 certificate is just checked for a generic purpose and OCSP request
1516 *) Add OCSP_check_validity() function to check the validity of OCSP
1517 responses. OCSP responses are prepared in real time and may only
1518 be a few seconds old. Simply checking that the current time lies
1519 between thisUpdate and nextUpdate max reject otherwise valid responses
1520 caused by either OCSP responder or client clock inaccuracy. Instead
1521 we allow thisUpdate and nextUpdate to fall within a certain period of
1522 the current time. The age of the response can also optionally be
1523 checked. Two new options -validity_period and -status_age added to
1527 *) If signature or public key algorithm is unrecognized print out its
1528 OID rather that just UNKNOWN.
1531 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
1532 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
1533 ID to be generated from the issuer certificate alone which can then be
1534 passed to OCSP_id_issuer_cmp().
1537 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
1538 ASN1 modules to export functions returning ASN1_ITEM pointers
1539 instead of the ASN1_ITEM structures themselves. This adds several
1540 new macros which allow the underlying ASN1 function/structure to
1541 be accessed transparently. As a result code should not use ASN1_ITEM
1542 references directly (such as &X509_it) but instead use the relevant
1543 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
1544 use of the new ASN1 code on platforms where exporting structures
1545 is problematical (for example in shared libraries) but exporting
1546 functions returning pointers to structures is not.
1549 *) Add support for overriding the generation of SSL/TLS session IDs.
1550 These callbacks can be registered either in an SSL_CTX or per SSL.
1551 The purpose of this is to allow applications to control, if they wish,
1552 the arbitrary values chosen for use as session IDs, particularly as it
1553 can be useful for session caching in multiple-server environments. A
1554 command-line switch for testing this (and any client code that wishes
1555 to use such a feature) has been added to "s_server".
1556 [Geoff Thorpe, Lutz Jaenicke]
1558 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
1559 of the form '#if defined(...) || defined(...) || ...' and
1560 '#if !defined(...) && !defined(...) && ...'. This also avoids
1561 the growing number of special cases it was previously handling.
1564 *) Make all configuration macros available for application by making
1565 sure they are available in opensslconf.h, by giving them names starting
1566 with "OPENSSL_" to avoid conflicts with other packages and by making
1567 sure e_os2.h will cover all platform-specific cases together with
1569 Additionally, it is now possible to define configuration/platform-
1570 specific names (called "system identities"). In the C code, these
1571 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
1572 macro with the name beginning with "OPENSSL_SYS_", which is determined
1573 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
1577 *) New option -set_serial to 'req' and 'x509' this allows the serial
1578 number to use to be specified on the command line. Previously self
1579 signed certificates were hard coded with serial number 0 and the
1580 CA options of 'x509' had to use a serial number in a file which was
1584 *) New options to 'ca' utility to support V2 CRL entry extensions.
1585 Currently CRL reason, invalidity date and hold instruction are
1586 supported. Add new CRL extensions to V3 code and some new objects.
1589 *) New function EVP_CIPHER_CTX_set_padding() this is used to
1590 disable standard block padding (aka PKCS#5 padding) in the EVP
1591 API, which was previously mandatory. This means that the data is
1592 not padded in any way and so the total length much be a multiple
1593 of the block size, otherwise an error occurs.
1596 *) Initial (incomplete) OCSP SSL support.
1599 *) New function OCSP_parse_url(). This splits up a URL into its host,
1600 port and path components: primarily to parse OCSP URLs. New -url
1601 option to ocsp utility.
1604 *) New nonce behavior. The return value of OCSP_check_nonce() now
1605 reflects the various checks performed. Applications can decide
1606 whether to tolerate certain situations such as an absent nonce
1607 in a response when one was present in a request: the ocsp application
1608 just prints out a warning. New function OCSP_add1_basic_nonce()
1609 this is to allow responders to include a nonce in a response even if
1610 the request is nonce-less.
1613 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
1614 skipped when using openssl x509 multiple times on a single input file,
1615 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
1618 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
1619 set string type: to handle setting ASN1_TIME structures. Fix ca
1620 utility to correctly initialize revocation date of CRLs.
1623 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
1624 the clients preferred ciphersuites and rather use its own preferences.
1625 Should help to work around M$ SGC (Server Gated Cryptography) bug in
1626 Internet Explorer by ensuring unchanged hash method during stepup.
1627 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
1630 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
1631 to aes and add a new 'exist' option to print out symbols that don't
1635 *) Additional options to ocsp utility to allow flags to be set and
1636 additional certificates supplied.
1639 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
1640 OCSP client a number of certificate to only verify the response
1644 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
1645 handle the new API. Currently only ECB, CBC modes supported. Add new
1648 Add TLS AES ciphersuites as described in RFC3268, "Advanced
1649 Encryption Standard (AES) Ciphersuites for Transport Layer
1650 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
1651 not enabled by default and were not part of the "ALL" ciphersuite
1652 alias because they were not yet official; they could be
1653 explicitly requested by specifying the "AESdraft" ciphersuite
1654 group alias. In the final release of OpenSSL 0.9.7, the group
1655 alias is called "AES" and is part of "ALL".)
1656 [Ben Laurie, Steve Henson, Bodo Moeller]
1658 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
1659 request to response.
1662 *) Functions for OCSP responders. OCSP_request_onereq_count(),
1663 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
1664 extract information from a certificate request. OCSP_response_create()
1665 creates a response and optionally adds a basic response structure.
1666 OCSP_basic_add1_status() adds a complete single response to a basic
1667 response and returns the OCSP_SINGLERESP structure just added (to allow
1668 extensions to be included for example). OCSP_basic_add1_cert() adds a
1669 certificate to a basic response and OCSP_basic_sign() signs a basic
1670 response with various flags. New helper functions ASN1_TIME_check()
1671 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
1672 (converts ASN1_TIME to GeneralizedTime).
1675 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
1676 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
1677 structure from a certificate. X509_pubkey_digest() digests the public_key
1678 contents: this is used in various key identifiers.
1681 *) Make sk_sort() tolerate a NULL argument.
1682 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
1684 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
1685 passed by the function are trusted implicitly. If any of them signed the
1686 response then it is assumed to be valid and is not verified.
1689 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
1690 to data. This was previously part of the PKCS7 ASN1 code. This
1691 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
1692 [Steve Henson, reported by Kenneth R. Robinette
1693 <support@securenetterm.com>]
1695 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
1696 routines: without these tracing memory leaks is very painful.
1697 Fix leaks in PKCS12 and PKCS7 routines.
1700 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
1701 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
1702 effectively meant GeneralizedTime would never be used. Now it
1703 is initialised to -1 but X509_time_adj() now has to check the value
1704 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
1705 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
1706 [Steve Henson, reported by Kenneth R. Robinette
1707 <support@securenetterm.com>]
1709 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
1710 result in a zero length in the ASN1_INTEGER structure which was
1711 not consistent with the structure when d2i_ASN1_INTEGER() was used
1712 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
1713 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
1714 where it did not print out a minus for negative ASN1_INTEGER.
1717 *) Add summary printout to ocsp utility. The various functions which
1718 convert status values to strings have been renamed to:
1719 OCSP_response_status_str(), OCSP_cert_status_str() and
1720 OCSP_crl_reason_str() and are no longer static. New options
1721 to verify nonce values and to disable verification. OCSP response
1722 printout format cleaned up.
1725 *) Add additional OCSP certificate checks. These are those specified
1726 in RFC2560. This consists of two separate checks: the CA of the
1727 certificate being checked must either be the OCSP signer certificate
1728 or the issuer of the OCSP signer certificate. In the latter case the
1729 OCSP signer certificate must contain the OCSP signing extended key
1730 usage. This check is performed by attempting to match the OCSP
1731 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
1732 in the OCSP_CERTID structures of the response.
1735 *) Initial OCSP certificate verification added to OCSP_basic_verify()
1736 and related routines. This uses the standard OpenSSL certificate
1737 verify routines to perform initial checks (just CA validity) and
1738 to obtain the certificate chain. Then additional checks will be
1739 performed on the chain. Currently the root CA is checked to see
1740 if it is explicitly trusted for OCSP signing. This is used to set
1741 a root CA as a global signing root: that is any certificate that
1742 chains to that CA is an acceptable OCSP signing certificate.
1745 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
1746 extensions from a separate configuration file.
1747 As when reading extensions from the main configuration file,
1748 the '-extensions ...' option may be used for specifying the
1750 [Massimiliano Pala <madwolf@comune.modena.it>]
1752 *) New OCSP utility. Allows OCSP requests to be generated or
1753 read. The request can be sent to a responder and the output
1754 parsed, outputed or printed in text form. Not complete yet:
1755 still needs to check the OCSP response validity.
1758 *) New subcommands for 'openssl ca':
1759 'openssl ca -status <serial>' prints the status of the cert with
1760 the given serial number (according to the index file).
1761 'openssl ca -updatedb' updates the expiry status of certificates
1763 [Massimiliano Pala <madwolf@comune.modena.it>]
1765 *) New '-newreq-nodes' command option to CA.pl. This is like
1766 '-newreq', but calls 'openssl req' with the '-nodes' option
1767 so that the resulting key is not encrypted.
1768 [Damien Miller <djm@mindrot.org>]
1770 *) New configuration for the GNU Hurd.
1771 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
1773 *) Initial code to implement OCSP basic response verify. This
1774 is currently incomplete. Currently just finds the signer's
1775 certificate and verifies the signature on the response.
1778 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
1779 value of OPENSSLDIR. This is available via the new '-d' option
1780 to 'openssl version', and is also included in 'openssl version -a'.
1783 *) Allowing defining memory allocation callbacks that will be given
1784 file name and line number information in additional arguments
1785 (a const char* and an int). The basic functionality remains, as
1786 well as the original possibility to just replace malloc(),
1787 realloc() and free() by functions that do not know about these
1788 additional arguments. To register and find out the current
1789 settings for extended allocation functions, the following
1790 functions are provided:
1792 CRYPTO_set_mem_ex_functions
1793 CRYPTO_set_locked_mem_ex_functions
1794 CRYPTO_get_mem_ex_functions
1795 CRYPTO_get_locked_mem_ex_functions
1797 These work the same way as CRYPTO_set_mem_functions and friends.
1798 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
1799 extended allocation function is enabled.
1800 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
1801 a conventional allocation function is enabled.
1802 [Richard Levitte, Bodo Moeller]
1804 *) Finish off removing the remaining LHASH function pointer casts.
1805 There should no longer be any prototype-casting required when using
1806 the LHASH abstraction, and any casts that remain are "bugs". See
1807 the callback types and macros at the head of lhash.h for details
1808 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
1811 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
1812 If /dev/[u]random devices are not available or do not return enough
1813 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
1815 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
1816 /etc/entropy will be queried once each in this sequence, quering stops
1817 when enough entropy was collected without querying more sockets.
1820 *) Change the Unix RAND_poll() variant to be able to poll several
1821 random devices, as specified by DEVRANDOM, until a sufficient amount
1822 of data has been collected. We spend at most 10 ms on each file
1823 (select timeout) and read in non-blocking mode. DEVRANDOM now
1824 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
1825 (previously it was just the string "/dev/urandom"), so on typical
1826 platforms the 10 ms delay will never occur.
1827 Also separate out the Unix variant to its own file, rand_unix.c.
1828 For VMS, there's a currently-empty rand_vms.c.
1831 *) Move OCSP client related routines to ocsp_cl.c. These
1832 provide utility functions which an application needing
1833 to issue a request to an OCSP responder and analyse the
1834 response will typically need: as opposed to those which an
1835 OCSP responder itself would need which will be added later.
1837 OCSP_request_sign() signs an OCSP request with an API similar
1838 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
1839 response. OCSP_response_get1_basic() extracts basic response
1840 from response. OCSP_resp_find_status(): finds and extracts status
1841 information from an OCSP_CERTID structure (which will be created
1842 when the request structure is built). These are built from lower
1843 level functions which work on OCSP_SINGLERESP structures but
1844 wont normally be used unless the application wishes to examine
1845 extensions in the OCSP response for example.
1847 Replace nonce routines with a pair of functions.
1848 OCSP_request_add1_nonce() adds a nonce value and optionally
1849 generates a random value. OCSP_check_nonce() checks the
1850 validity of the nonce in an OCSP response.
1853 *) Change function OCSP_request_add() to OCSP_request_add0_id().
1854 This doesn't copy the supplied OCSP_CERTID and avoids the
1855 need to free up the newly created id. Change return type
1856 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
1857 This can then be used to add extensions to the request.
1858 Deleted OCSP_request_new(), since most of its functionality
1859 is now in OCSP_REQUEST_new() (and the case insensitive name
1860 clash) apart from the ability to set the request name which
1861 will be added elsewhere.
1864 *) Update OCSP API. Remove obsolete extensions argument from
1865 various functions. Extensions are now handled using the new
1866 OCSP extension code. New simple OCSP HTTP function which
1867 can be used to send requests and parse the response.
1870 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
1871 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
1872 uses the special reorder version of SET OF to sort the attributes
1873 and reorder them to match the encoded order. This resolves a long
1874 standing problem: a verify on a PKCS7 structure just after signing
1875 it used to fail because the attribute order did not match the
1876 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
1877 it uses the received order. This is necessary to tolerate some broken
1878 software that does not order SET OF. This is handled by encoding
1879 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
1880 to produce the required SET OF.
1883 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
1884 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
1885 files to get correct declarations of the ASN.1 item variables.
1888 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
1889 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
1890 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
1891 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
1892 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
1893 ASN1_ITEM and no wrapper functions.
1896 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
1897 replace the old function pointer based I/O routines. Change most of
1898 the *_d2i_bio() and *_d2i_fp() functions to use these.
1901 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
1902 lines, recognice more "algorithms" that can be deselected, and make
1903 it complain about algorithm deselection that isn't recognised.
1906 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
1907 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
1908 to use new functions. Add NO_ASN1_OLD which can be set to remove
1909 some old style ASN1 functions: this can be used to determine if old
1910 code will still work when these eventually go away.
1913 *) New extension functions for OCSP structures, these follow the
1914 same conventions as certificates and CRLs.
1917 *) New function X509V3_add1_i2d(). This automatically encodes and
1918 adds an extension. Its behaviour can be customised with various
1919 flags to append, replace or delete. Various wrappers added for
1920 certifcates and CRLs.
1923 *) Fix to avoid calling the underlying ASN1 print routine when
1924 an extension cannot be parsed. Correct a typo in the
1925 OCSP_SERVICELOC extension. Tidy up print OCSP format.
1928 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
1929 entries for variables.
1932 *) Add functionality to apps/openssl.c for detecting locking
1933 problems: As the program is single-threaded, all we have
1934 to do is register a locking callback using an array for
1935 storing which locks are currently held by the program.
1938 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
1939 SSL_get_ex_data_X509_STORE_idx(), which is used in
1940 ssl_verify_cert_chain() and thus can be called at any time
1941 during TLS/SSL handshakes so that thread-safety is essential.
1942 Unfortunately, the ex_data design is not at all suited
1943 for multi-threaded use, so it probably should be abolished.
1946 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
1947 [Broadcom, tweaked and integrated by Geoff Thorpe]
1949 *) Move common extension printing code to new function
1950 X509V3_print_extensions(). Reorganise OCSP print routines and
1951 implement some needed OCSP ASN1 functions. Add OCSP extensions.
1954 *) New function X509_signature_print() to remove duplication in some
1958 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
1959 set (this was treated exactly the same as SET OF previously). This
1960 is used to reorder the STACK representing the structure to match the
1961 encoding. This will be used to get round a problem where a PKCS7
1962 structure which was signed could not be verified because the STACK
1963 order did not reflect the encoded order.
1966 *) Reimplement the OCSP ASN1 module using the new code.
1969 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
1970 for its ASN1 operations. The old style function pointers still exist
1971 for now but they will eventually go away.
1974 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
1975 completely replaces the old ASN1 functionality with a table driven
1976 encoder and decoder which interprets an ASN1_ITEM structure describing
1977 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
1978 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
1979 has also been converted to the new form.
1982 *) Change BN_mod_exp_recp so that negative moduli are tolerated
1983 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
1984 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
1985 for negative moduli.
1988 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
1989 of not touching the result's sign bit.
1992 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
1996 *) Changed the LHASH code to use prototypes for callbacks, and created
1997 macros to declare and implement thin (optionally static) functions
1998 that provide type-safety and avoid function pointer casting for the
1999 type-specific callbacks.
2002 *) Added Kerberos Cipher Suites to be used with TLS, as written in
2004 [Veers Staats <staatsvr@asc.hpc.mil>,
2005 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
2007 *) Reformat the FAQ so the different questions and answers can be divided
2008 in sections depending on the subject.
2011 *) Have the zlib compression code load ZLIB.DLL dynamically under
2015 *) New function BN_mod_sqrt for computing square roots modulo a prime
2016 (using the probabilistic Tonelli-Shanks algorithm unless
2017 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
2018 be handled deterministically).
2019 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
2021 *) Make BN_mod_inverse faster by explicitly handling small quotients
2022 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
2023 512 bits], about 30% for larger ones [1024 or 2048 bits].)
2026 *) New function BN_kronecker.
2029 *) Fix BN_gcd so that it works on negative inputs; the result is
2030 positive unless both parameters are zero.
2031 Previously something reasonably close to an infinite loop was
2032 possible because numbers could be growing instead of shrinking
2033 in the implementation of Euclid's algorithm.
2036 *) Fix BN_is_word() and BN_is_one() macros to take into account the
2037 sign of the number in question.
2039 Fix BN_is_word(a,w) to work correctly for w == 0.
2041 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
2042 because its test if the absolute value of 'a' equals 'w'.
2043 Note that BN_abs_is_word does *not* handle w == 0 reliably;
2044 it exists mostly for use in the implementations of BN_is_zero(),
2045 BN_is_one(), and BN_is_word().
2048 *) New function BN_swap.
2051 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
2052 the exponentiation functions are more likely to produce reasonable
2053 results on negative inputs.
2056 *) Change BN_mod_mul so that the result is always non-negative.
2057 Previously, it could be negative if one of the factors was negative;
2058 I don't think anyone really wanted that behaviour.
2061 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
2062 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
2063 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
2064 and add new functions:
2073 BN_mod_lshift1_quick
2077 These functions always generate non-negative results.
2079 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
2080 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
2082 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
2083 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
2084 be reduced modulo m.
2085 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
2087 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
2088 was actually never needed) and in BN_mul(). The removal in BN_mul()
2089 required a small change in bn_mul_part_recursive() and the addition
2090 of the functions bn_cmp_part_words(), bn_sub_part_words() and
2091 bn_add_part_words(), which do the same thing as bn_cmp_words(),
2092 bn_sub_words() and bn_add_words() except they take arrays with
2096 *) In 'openssl passwd', verify passwords read from the terminal
2097 unless the '-salt' option is used (which usually means that
2098 verification would just waste user's time since the resulting
2099 hash is going to be compared with some given password hash)
2100 or the new '-noverify' option is used.
2102 This is an incompatible change, but it does not affect
2103 non-interactive use of 'openssl passwd' (passwords on the command
2104 line, '-stdin' option, '-in ...' option) and thus should not
2108 *) Remove all references to RSAref, since there's no more need for it.
2111 *) Make DSO load along a path given through an environment variable
2112 (SHLIB_PATH) with shl_load().
2115 *) Constify the ENGINE code as a result of BIGNUM constification.
2116 Also constify the RSA code and most things related to it. In a
2117 few places, most notable in the depth of the ASN.1 code, ugly
2118 casts back to non-const were required (to be solved at a later
2122 *) Make it so the openssl application has all engines loaded by default.
2125 *) Constify the BIGNUM routines a little more.
2128 *) Add the following functions:
2130 ENGINE_load_cswift()
2132 ENGINE_load_atalla()
2134 ENGINE_load_builtin_engines()
2136 That way, an application can itself choose if external engines that
2137 are built-in in OpenSSL shall ever be used or not. The benefit is
2138 that applications won't have to be linked with libdl or other dso
2139 libraries unless it's really needed.
2141 Changed 'openssl engine' to load all engines on demand.
2142 Changed the engine header files to avoid the duplication of some
2143 declarations (they differed!).
2146 *) 'openssl engine' can now list capabilities.
2149 *) Better error reporting in 'openssl engine'.
2152 *) Never call load_dh_param(NULL) in s_server.
2155 *) Add engine application. It can currently list engines by name and
2156 identity, and test if they are actually available.
2159 *) Improve RPM specification file by forcing symbolic linking and making
2160 sure the installed documentation is also owned by root.root.
2161 [Damien Miller <djm@mindrot.org>]
2163 *) Give the OpenSSL applications more possibilities to make use of
2164 keys (public as well as private) handled by engines.
2167 *) Add OCSP code that comes from CertCo.
2170 *) Add VMS support for the Rijndael code.
2173 *) Added untested support for Nuron crypto accelerator.
2176 *) Add support for external cryptographic devices. This code was
2177 previously distributed separately as the "engine" branch.
2178 [Geoff Thorpe, Richard Levitte]
2180 *) Rework the filename-translation in the DSO code. It is now possible to
2181 have far greater control over how a "name" is turned into a filename
2182 depending on the operating environment and any oddities about the
2183 different shared library filenames on each system.
2186 *) Support threads on FreeBSD-elf in Configure.
2189 *) Fix for SHA1 assembly problem with MASM: it produces
2190 warnings about corrupt line number information when assembling
2191 with debugging information. This is caused by the overlapping
2193 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
2196 NCONF_get_number() has no error checking at all. As a replacement,
2197 NCONF_get_number_e() is defined (_e for "error checking") and is
2198 promoted strongly. The old NCONF_get_number is kept around for
2199 binary backward compatibility.
2200 Make it possible for methods to load from something other than a BIO,
2201 by providing a function pointer that is given a name instead of a BIO.
2202 For example, this could be used to load configuration data from an
2206 *) Fix for non blocking accept BIOs. Added new I/O special reason
2207 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
2208 with non blocking I/O was not possible because no retry code was
2209 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
2213 *) Added the beginnings of Rijndael support.
2216 *) Fix for bug in DirectoryString mask setting. Add support for
2217 X509_NAME_print_ex() in 'req' and X509_print_ex() function
2218 to allow certificate printing to more controllable, additional
2219 'certopt' option to 'x509' to allow new printing options to be
2223 *) Clean old EAY MD5 hack from e_os.h.
2226 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
2228 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
2229 memory from it's contents. This is done with a counter that will
2230 place alternating values in each byte. This can be used to solve
2231 two issues: 1) the removal of calls to memset() by highly optimizing
2232 compilers, and 2) cleansing with other values than 0, since those can
2233 be read through on certain media, for example a swap space on disk.
2236 *) Bugfix: client side session caching did not work with external caching,
2237 because the session->cipher setting was not restored when reloading
2238 from the external cache. This problem was masked, when
2239 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
2240 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
2243 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
2244 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
2245 [Zeev Lieber <zeev-l@yahoo.com>]
2247 *) Undo an undocumented change introduced in 0.9.6e which caused
2248 repeated calls to OpenSSL_add_all_ciphers() and
2249 OpenSSL_add_all_digests() to be ignored, even after calling
2253 *) Change the default configuration reader to deal with last line not
2254 being properly terminated.
2257 *) Change X509_NAME_cmp() so it applies the special rules on handling
2258 DN values that are of type PrintableString, as well as RDNs of type
2259 emailAddress where the value has the type ia5String.
2260 [stefank@valicert.com via Richard Levitte]
2262 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
2263 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
2264 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
2265 the bitwise-OR of the two for use by the majority of applications
2266 wanting this behaviour, and update the docs. The documented
2267 behaviour and actual behaviour were inconsistent and had been
2268 changing anyway, so this is more a bug-fix than a behavioural
2270 [Geoff Thorpe, diagnosed by Nadav Har'El]
2272 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
2273 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
2276 *) Fix initialization code race conditions in
2277 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
2278 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
2279 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
2280 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
2281 ssl2_get_cipher_by_char(),
2282 ssl3_get_cipher_by_char().
2283 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
2285 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
2286 the cached sessions are flushed, as the remove_cb() might use ex_data
2287 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
2288 (see [openssl.org #212]).
2289 [Geoff Thorpe, Lutz Jaenicke]
2291 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
2292 length, instead of the encoding length to d2i_ASN1_OBJECT.
2295 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
2297 *) [In 0.9.6g-engine release:]
2298 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
2299 [Lynn Gazis <lgazis@rainbow.com>]
2301 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
2303 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
2304 and get fix the header length calculation.
2305 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
2306 Alon Kantor <alonk@checkpoint.com> (and others),
2309 *) Use proper error handling instead of 'assertions' in buffer
2310 overflow checks added in 0.9.6e. This prevents DoS (the
2311 assertions could call abort()).
2312 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
2314 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
2316 *) Add various sanity checks to asn1_get_length() to reject
2317 the ASN1 length bytes if they exceed sizeof(long), will appear
2318 negative or the content length exceeds the length of the
2320 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
2322 *) Fix cipher selection routines: ciphers without encryption had no flags
2323 for the cipher strength set and where therefore not handled correctly
2324 by the selection routines (PR #130).
2327 *) Fix EVP_dsa_sha macro.
2331 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
2332 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
2333 that was added in OpenSSL 0.9.6d.
2335 As the countermeasure turned out to be incompatible with some
2336 broken SSL implementations, the new option is part of SSL_OP_ALL.
2337 SSL_OP_ALL is usually employed when compatibility with weird SSL
2338 implementations is desired (e.g. '-bugs' option to 's_client' and
2339 's_server'), so the new option is automatically set in many
2343 *) Changes in security patch:
2345 Changes marked "(CHATS)" were sponsored by the Defense Advanced
2346 Research Projects Agency (DARPA) and Air Force Research Laboratory,
2347 Air Force Materiel Command, USAF, under agreement number
2350 *) Add various sanity checks to asn1_get_length() to reject
2351 the ASN1 length bytes if they exceed sizeof(long), will appear
2352 negative or the content length exceeds the length of the
2353 supplied buffer. (CAN-2002-0659)
2354 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
2356 *) Assertions for various potential buffer overflows, not known to
2358 [Ben Laurie (CHATS)]
2360 *) Various temporary buffers to hold ASCII versions of integers were
2361 too small for 64 bit platforms. (CAN-2002-0655)
2362 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
2364 *) Remote buffer overflow in SSL3 protocol - an attacker could
2365 supply an oversized session ID to a client. (CAN-2002-0656)
2366 [Ben Laurie (CHATS)]
2368 *) Remote buffer overflow in SSL2 protocol - an attacker could
2369 supply an oversized client master key. (CAN-2002-0656)
2370 [Ben Laurie (CHATS)]
2372 Changes between 0.9.6c and 0.9.6d [9 May 2002]
2374 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
2375 encoded as NULL) with id-dsa-with-sha1.
2376 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
2378 *) Check various X509_...() return values in apps/req.c.
2379 [Nils Larsch <nla@trustcenter.de>]
2381 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
2382 an end-of-file condition would erronously be flagged, when the CRLF
2383 was just at the end of a processed block. The bug was discovered when
2384 processing data through a buffering memory BIO handing the data to a
2385 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
2386 <ptsekov@syntrex.com> and Nedelcho Stanev.
2389 *) Implement a countermeasure against a vulnerability recently found
2390 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
2391 before application data chunks to avoid the use of known IVs
2392 with data potentially chosen by the attacker.
2395 *) Fix length checks in ssl3_get_client_hello().
2398 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
2399 to prevent ssl3_read_internal() from incorrectly assuming that
2400 ssl3_read_bytes() found application data while handshake
2401 processing was enabled when in fact s->s3->in_read_app_data was
2402 merely automatically cleared during the initial handshake.
2403 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
2405 *) Fix object definitions for Private and Enterprise: they were not
2406 recognized in their shortname (=lowercase) representation. Extend
2407 obj_dat.pl to issue an error when using undefined keywords instead
2408 of silently ignoring the problem (Svenning Sorensen
2409 <sss@sss.dnsalias.net>).
2412 *) Fix DH_generate_parameters() so that it works for 'non-standard'
2413 generators, i.e. generators other than 2 and 5. (Previously, the
2414 code did not properly initialise the 'add' and 'rem' values to
2415 BN_generate_prime().)
2417 In the new general case, we do not insist that 'generator' is
2418 actually a primitive root: This requirement is rather pointless;
2419 a generator of the order-q subgroup is just as good, if not
2423 *) Map new X509 verification errors to alerts. Discovered and submitted by
2424 Tom Wu <tom@arcot.com>.
2427 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
2428 returning non-zero before the data has been completely received
2429 when using non-blocking I/O.
2430 [Bodo Moeller; problem pointed out by John Hughes]
2432 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
2433 [Ben Laurie, Lutz Jaenicke]
2435 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
2436 Yoram Zahavi <YoramZ@gilian.com>).
2439 *) Add information about CygWin 1.3 and on, and preserve proper
2440 configuration for the versions before that.
2441 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
2443 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
2444 check whether we deal with a copy of a session and do not delete from
2445 the cache in this case. Problem reported by "Izhar Shoshani Levi"
2446 <izhar@checkpoint.com>.
2449 *) Do not store session data into the internal session cache, if it
2450 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
2451 flag is set). Proposed by Aslam <aslam@funk.com>.
2454 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
2458 *) [In 0.9.6d-engine release:]
2459 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
2460 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2462 *) Add the configuration target linux-s390x.
2463 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
2465 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
2466 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
2467 variable as an indication that a ClientHello message has been
2468 received. As the flag value will be lost between multiple
2469 invocations of ssl3_accept when using non-blocking I/O, the
2470 function may not be aware that a handshake has actually taken
2471 place, thus preventing a new session from being added to the
2474 To avoid this problem, we now set s->new_session to 2 instead of
2475 using a local variable.
2476 [Lutz Jaenicke, Bodo Moeller]
2478 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
2479 if the SSL_R_LENGTH_MISMATCH error is detected.
2480 [Geoff Thorpe, Bodo Moeller]
2482 *) New 'shared_ldflag' column in Configure platform table.
2485 *) Fix EVP_CIPHER_mode macro.
2486 ["Dan S. Camper" <dan@bti.net>]
2488 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
2489 type, we must throw them away by setting rr->length to 0.
2490 [D P Chang <dpc@qualys.com>]
2492 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
2494 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
2495 <Dominikus.Scherkl@biodata.com>. (The previous implementation
2496 worked incorrectly for those cases where range = 10..._2 and
2497 3*range is two bits longer than range.)
2500 *) Only add signing time to PKCS7 structures if it is not already
2504 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
2505 OBJ_ld_ce should be OBJ_id_ce.
2506 Also some ip-pda OIDs in crypto/objects/objects.txt were
2507 incorrect (cf. RFC 3039).
2508 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
2510 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
2511 returns early because it has nothing to do.
2512 [Andy Schneider <andy.schneider@bjss.co.uk>]
2514 *) [In 0.9.6c-engine release:]
2515 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
2516 [Andy Schneider <andy.schneider@bjss.co.uk>]
2518 *) [In 0.9.6c-engine release:]
2519 Add support for Cryptographic Appliance's keyserver technology.
2520 (Use engine 'keyclient')
2521 [Cryptographic Appliances and Geoff Thorpe]
2523 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
2524 is called via tools/c89.sh because arguments have to be
2525 rearranged (all '-L' options must appear before the first object
2527 [Richard Shapiro <rshapiro@abinitio.com>]
2529 *) [In 0.9.6c-engine release:]
2530 Add support for Broadcom crypto accelerator cards, backported
2532 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
2534 *) [In 0.9.6c-engine release:]
2535 Add support for SureWare crypto accelerator cards from
2536 Baltimore Technologies. (Use engine 'sureware')
2537 [Baltimore Technologies and Mark Cox]
2539 *) [In 0.9.6c-engine release:]
2540 Add support for crypto accelerator cards from Accelerated
2541 Encryption Processing, www.aep.ie. (Use engine 'aep')
2542 [AEP Inc. and Mark Cox]
2544 *) Add a configuration entry for gcc on UnixWare.
2545 [Gary Benson <gbenson@redhat.com>]
2547 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
2548 messages are stored in a single piece (fixed-length part and
2549 variable-length part combined) and fix various bugs found on the way.
2552 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
2553 instead. BIO_gethostbyname() does not know what timeouts are
2554 appropriate, so entries would stay in cache even when they have
2556 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
2558 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
2559 faced with a pathologically small ClientHello fragment that does
2560 not contain client_version: Instead of aborting with an error,
2561 simply choose the highest available protocol version (i.e.,
2562 TLS 1.0 unless it is disabled). In practice, ClientHello
2563 messages are never sent like this, but this change gives us
2564 strictly correct behaviour at least for TLS.
2567 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
2568 never resets s->method to s->ctx->method when called from within
2569 one of the SSL handshake functions.
2570 [Bodo Moeller; problem pointed out by Niko Baric]
2572 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
2573 (sent using the client's version number) if client_version is
2574 smaller than the protocol version in use. Also change
2575 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
2576 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
2577 the client will at least see that alert.
2580 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
2584 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
2585 client receives HelloRequest while in a handshake.
2586 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
2588 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
2589 should end in 'break', not 'goto end' which circuments various
2590 cleanups done in state SSL_ST_OK. But session related stuff
2591 must be disabled for SSL_ST_OK in the case that we just sent a
2594 Also avoid some overhead by not calling ssl_init_wbio_buffer()
2595 before just sending a HelloRequest.
2596 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
2598 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
2599 reveal whether illegal block cipher padding was found or a MAC
2600 verification error occured. (Neither SSLerr() codes nor alerts
2601 are directly visible to potential attackers, but the information
2602 may leak via logfiles.)
2604 Similar changes are not required for the SSL 2.0 implementation
2605 because the number of padding bytes is sent in clear for SSL 2.0,
2606 and the extra bytes are just ignored. However ssl/s2_pkt.c
2607 failed to verify that the purported number of padding bytes is in
2611 *) Add OpenUNIX-8 support including shared libraries
2612 (Boyd Lynn Gerber <gerberb@zenez.com>).
2615 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
2616 'wristwatch attack' using huge encoding parameters (cf.
2617 James H. Manger's CRYPTO 2001 paper). Note that the
2618 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
2619 encoding parameters and hence was not vulnerable.
2622 *) BN_sqr() bug fix.
2623 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
2625 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
2626 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
2627 followed by modular reduction.
2628 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
2630 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
2631 equivalent based on BN_pseudo_rand() instead of BN_rand().
2634 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
2635 This function was broken, as the check for a new client hello message
2636 to handle SGC did not allow these large messages.
2637 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
2640 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
2643 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
2644 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
2647 *) Rework the configuration and shared library support for Tru64 Unix.
2648 The configuration part makes use of modern compiler features and
2649 still retains old compiler behavior for those that run older versions
2650 of the OS. The shared library support part includes a variant that
2651 uses the RPATH feature, and is available through the special
2652 configuration target "alpha-cc-rpath", which will never be selected
2654 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
2656 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
2657 with the same message size as in ssl3_get_certificate_request().
2658 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
2659 messages might inadvertently be reject as too long.
2660 [Petr Lampa <lampa@fee.vutbr.cz>]
2662 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
2665 *) Modified SSL library such that the verify_callback that has been set
2666 specificly for an SSL object with SSL_set_verify() is actually being
2667 used. Before the change, a verify_callback set with this function was
2668 ignored and the verify_callback() set in the SSL_CTX at the time of
2669 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
2670 to allow the necessary settings.
2673 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
2674 explicitly to NULL, as at least on Solaris 8 this seems not always to be
2675 done automatically (in contradiction to the requirements of the C
2676 standard). This made problems when used from OpenSSH.
2679 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
2680 dh->length and always used
2682 BN_rand_range(priv_key, dh->p).
2684 BN_rand_range() is not necessary for Diffie-Hellman, and this
2685 specific range makes Diffie-Hellman unnecessarily inefficient if
2686 dh->length (recommended exponent length) is much smaller than the
2687 length of dh->p. We could use BN_rand_range() if the order of
2688 the subgroup was stored in the DH structure, but we only have
2693 BN_rand(priv_key, l, ...)
2695 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
2701 RSA_eay_public_encrypt
2702 RSA_eay_private_decrypt
2703 RSA_eay_private_encrypt (signing)
2704 RSA_eay_public_decrypt (signature verification)
2706 (default implementations for RSA_public_encrypt,
2707 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
2708 always reject numbers >= n.
2711 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
2712 to synchronize access to 'locking_thread'. This is necessary on
2713 systems where access to 'locking_thread' (an 'unsigned long'
2714 variable) is not atomic.
2717 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
2718 *before* setting the 'crypto_lock_rand' flag. The previous code had
2719 a race condition if 0 is a valid thread ID.
2720 [Travis Vitek <vitek@roguewave.com>]
2722 *) Add support for shared libraries under Irix.
2723 [Albert Chin-A-Young <china@thewrittenword.com>]
2725 *) Add configuration option to build on Linux on both big-endian and
2727 [Ralf Baechle <ralf@uni-koblenz.de>]
2729 *) Add the possibility to create shared libraries on HP-UX.
2732 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
2734 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
2735 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
2736 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
2737 PRNG state recovery was possible based on the output of
2738 one PRNG request appropriately sized to gain knowledge on
2739 'md' followed by enough consecutive 1-byte PRNG requests
2740 to traverse all of 'state'.
2742 1. When updating 'md_local' (the current thread's copy of 'md')
2743 during PRNG output generation, hash all of the previous
2744 'md_local' value, not just the half used for PRNG output.
2746 2. Make the number of bytes from 'state' included into the hash
2747 independent from the number of PRNG bytes requested.
2749 The first measure alone would be sufficient to avoid
2750 Markku-Juhani's attack. (Actually it had never occurred
2751 to me that the half of 'md_local' used for chaining was the
2752 half from which PRNG output bytes were taken -- I had always
2753 assumed that the secret half would be used.) The second
2754 measure makes sure that additional data from 'state' is never
2755 mixed into 'md_local' in small portions; this heuristically
2756 further strengthens the PRNG.
2759 *) Fix crypto/bn/asm/mips3.s.
2762 *) When only the key is given to "enc", the IV is undefined. Print out
2763 an error message in this case.
2766 *) Handle special case when X509_NAME is empty in X509 printing routines.
2769 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
2770 positive and less than q.
2773 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
2774 used: it isn't thread safe and the add_lock_callback should handle
2776 [Paul Rose <Paul.Rose@bridge.com>]
2778 *) Verify that incoming data obeys the block size in
2779 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
2783 [Ulf Möller, Bodo Möller]
2785 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
2786 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
2787 when fixing the server behaviour for backwards-compatible 'client
2788 hello' messages. (Note that the attack is impractical against
2789 SSL 3.0 and TLS 1.0 anyway because length and version checking
2790 means that the probability of guessing a valid ciphertext is
2791 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
2794 Before 0.9.5, the countermeasure (hide the error by generating a
2795 random 'decryption result') did not work properly because
2796 ERR_clear_error() was missing, meaning that SSL_get_error() would
2797 detect the supposedly ignored error.
2799 Both problems are now fixed.
2802 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
2803 (previously it was 1024).
2806 *) Fix for compatibility mode trust settings: ignore trust settings
2807 unless some valid trust or reject settings are present.
2810 *) Fix for blowfish EVP: its a variable length cipher.
2813 *) Fix various bugs related to DSA S/MIME verification. Handle missing
2814 parameters in DSA public key structures and return an error in the
2815 DSA routines if parameters are absent.
2818 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
2819 in the current directory if neither $RANDFILE nor $HOME was set.
2820 RAND_file_name() in 0.9.6a returned NULL in this case. This has
2821 caused some confusion to Windows users who haven't defined $HOME.
2822 Thus RAND_file_name() is changed again: e_os.h can define a
2823 DEFAULT_HOME, which will be used if $HOME is not set.
2824 For Windows, we use "C:"; on other platforms, we still require
2825 environment variables.
2827 *) Move 'if (!initialized) RAND_poll()' into regions protected by
2828 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
2829 having multiple threads call RAND_poll() concurrently.
2832 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
2833 combination of a flag and a thread ID variable.
2834 Otherwise while one thread is in ssleay_rand_bytes (which sets the
2835 flag), *other* threads can enter ssleay_add_bytes without obeying
2836 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
2837 that they do not hold after the first thread unsets add_do_not_lock).
2840 *) Change bctest again: '-x' expressions are not available in all
2844 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
2846 *) Fix a couple of memory leaks in PKCS7_dataDecode()
2847 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
2849 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
2850 the default extension for executables, if any. Also, make the perl
2851 scripts that use symlink() to test if it really exists and use "cp"
2852 if it doesn't. All this made OpenSSL compilable and installable in
2856 *) Fix for asn1_GetSequence() for indefinite length constructed data.
2857 If SEQUENCE is length is indefinite just set c->slen to the total
2858 amount of data available.
2859 [Steve Henson, reported by shige@FreeBSD.org]
2860 [This change does not apply to 0.9.7.]
2862 *) Change bctest to avoid here-documents inside command substitution
2863 (workaround for FreeBSD /bin/sh bug).
2864 For compatibility with Ultrix, avoid shell functions (introduced
2865 in the bctest version that searches along $PATH).
2868 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
2869 with des_encrypt() defined on some operating systems, like Solaris
2873 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
2874 On the Importance of Eliminating Errors in Cryptographic
2875 Computations, J. Cryptology 14 (2001) 2, 101-119,
2876 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
2879 *) MIPS assembler BIGNUM division bug fix.
2882 *) Disabled incorrect Alpha assembler code.
2885 *) Fix PKCS#7 decode routines so they correctly update the length
2886 after reading an EOC for the EXPLICIT tag.
2888 [This change does not apply to 0.9.7.]
2890 *) Fix bug in PKCS#12 key generation routines. This was triggered
2891 if a 3DES key was generated with a 0 initial byte. Include
2892 PKCS12_BROKEN_KEYGEN compilation option to retain the old
2893 (but broken) behaviour.
2896 *) Enhance bctest to search for a working bc along $PATH and print
2898 [Tim Rice <tim@multitalents.net> via Richard Levitte]
2900 *) Fix memory leaks in err.c: free err_data string if necessary;
2901 don't write to the wrong index in ERR_set_error_data.
2904 *) Implement ssl23_peek (analogous to ssl23_read), which previously
2908 *) Replace rdtsc with _emit statements for VC++ version 5.
2909 [Jeremy Cooper <jeremy@baymoo.org>]
2911 *) Make it possible to reuse SSLv2 sessions.
2914 *) In copy_email() check for >= 0 as a return value for
2915 X509_NAME_get_index_by_NID() since 0 is a valid index.
2916 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
2918 *) Avoid coredump with unsupported or invalid public keys by checking if
2919 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
2920 PKCS7_verify() fails with non detached data.
2923 *) Don't use getenv in library functions when run as setuid/setgid.
2924 New function OPENSSL_issetugid().
2927 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
2928 due to incorrect handling of multi-threading:
2930 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
2932 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
2934 3. Count how many times MemCheck_off() has been called so that
2935 nested use can be treated correctly. This also avoids
2936 inband-signalling in the previous code (which relied on the
2937 assumption that thread ID 0 is impossible).
2940 *) Add "-rand" option also to s_client and s_server.
2943 *) Fix CPU detection on Irix 6.x.
2944 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
2945 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
2947 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
2950 [This change does not apply to 0.9.7.]
2952 *) Use the cached encoding of an X509_NAME structure rather than
2953 copying it. This is apparently the reason for the libsafe "errors"
2954 but the code is actually correct.
2957 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
2958 Bleichenbacher's DSA attack.
2959 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
2960 to be set and top=0 forces the highest bit to be set; top=-1 is new
2961 and leaves the highest bit random.
2962 [Ulf Moeller, Bodo Moeller]
2964 *) In the NCONF_...-based implementations for CONF_... queries
2965 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
2966 a temporary CONF structure with the data component set to NULL
2967 (which gives segmentation faults in lh_retrieve).
2968 Instead, use NULL for the CONF pointer in CONF_get_string and
2969 CONF_get_number (which may use environment variables) and directly
2970 return NULL from CONF_get_section.
2973 *) Fix potential buffer overrun for EBCDIC.
2976 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
2977 keyUsage if basicConstraints absent for a CA.
2980 *) Make SMIME_write_PKCS7() write mail header values with a format that
2981 is more generally accepted (no spaces before the semicolon), since
2982 some programs can't parse those values properly otherwise. Also make
2983 sure BIO's that break lines after each write do not create invalid
2987 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
2988 macros previously used would not encode an empty SEQUENCE OF
2989 and break the signature.
2991 [This change does not apply to 0.9.7.]
2993 *) Zero the premaster secret after deriving the master secret in
2997 *) Add some EVP_add_digest_alias registrations (as found in
2998 OpenSSL_add_all_digests()) to SSL_library_init()
2999 aka OpenSSL_add_ssl_algorithms(). This provides improved
3000 compatibility with peers using X.509 certificates
3001 with unconventional AlgorithmIdentifier OIDs.
3004 *) Fix for Irix with NO_ASM.
3005 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
3007 *) ./config script fixes.
3008 [Ulf Moeller, Richard Levitte]
3010 *) Fix 'openssl passwd -1'.
3013 *) Change PKCS12_key_gen_asc() so it can cope with non null
3014 terminated strings whose length is passed in the passlen
3015 parameter, for example from PEM callbacks. This was done
3016 by adding an extra length parameter to asc2uni().
3017 [Steve Henson, reported by <oddissey@samsung.co.kr>]
3019 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
3020 call failed, free the DSA structure.
3023 *) Fix to uni2asc() to cope with zero length Unicode strings.
3024 These are present in some PKCS#12 files.
3027 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
3028 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
3029 when writing a 32767 byte record.
3030 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
3032 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
3033 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
3035 (RSA objects have a reference count access to which is protected
3036 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
3037 so they are meant to be shared between threads.)
3038 [Bodo Moeller, Geoff Thorpe; original patch submitted by
3039 "Reddie, Steven" <Steven.Reddie@ca.com>]
3041 *) Fix a deadlock in CRYPTO_mem_leaks().
3044 *) Use better test patterns in bntest.
3047 *) rand_win.c fix for Borland C.
3050 *) BN_rshift bugfix for n == 0.
3053 *) Add a 'bctest' script that checks for some known 'bc' bugs
3054 so that 'make test' does not abort just because 'bc' is broken.
3057 *) Store verify_result within SSL_SESSION also for client side to
3058 avoid potential security hole. (Re-used sessions on the client side
3059 always resulted in verify_result==X509_V_OK, not using the original
3060 result of the server certificate verification.)
3063 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
3064 SSL3_RT_APPLICATION_DATA, return 0.
3065 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
3069 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
3070 releases, have been re-implemented by renaming the previous
3071 implementations of ssl2_read and ssl3_read to ssl2_read_internal
3072 and ssl3_read_internal, respectively, and adding 'peek' parameters
3073 to them. The new ssl[23]_{read,peek} functions are calls to
3074 ssl[23]_read_internal with the 'peek' flag set appropriately.
3075 A 'peek' parameter has also been added to ssl3_read_bytes, which
3076 does the actual work for ssl3_read_internal.
3079 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
3080 the method-specific "init()" handler. Also clean up ex_data after
3081 calling the method-specific "finish()" handler. Previously, this was
3082 happening the other way round.
3085 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
3086 The previous value, 12, was not always sufficient for BN_mod_exp().
3089 *) Make sure that shared libraries get the internal name engine with
3090 the full version number and not just 0. This should mark the
3091 shared libraries as not backward compatible. Of course, this should
3092 be changed again when we can guarantee backward binary compatibility.
3095 *) Fix typo in get_cert_by_subject() in by_dir.c
3096 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
3098 *) Rework the system to generate shared libraries:
3100 - Make note of the expected extension for the shared libraries and
3101 if there is a need for symbolic links from for example libcrypto.so.0
3102 to libcrypto.so.0.9.7. There is extended info in Configure for
3105 - Make as few rebuilds of the shared libraries as possible.
3107 - Still avoid linking the OpenSSL programs with the shared libraries.
3109 - When installing, install the shared libraries separately from the
3113 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
3115 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
3116 and not in SSL_clear because the latter is also used by the
3117 accept/connect functions; previously, the settings made by
3118 SSL_set_read_ahead would be lost during the handshake.
3119 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
3121 *) Correct util/mkdef.pl to be selective about disabled algorithms.
3122 Previously, it would create entries for disableed algorithms no
3126 *) Added several new manual pages for SSL_* function.
3129 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
3131 *) In ssl23_get_client_hello, generate an error message when faced
3132 with an initial SSL 3.0/TLS record that is too small to contain the
3133 first two bytes of the ClientHello message, i.e. client_version.
3134 (Note that this is a pathologic case that probably has never happened
3135 in real life.) The previous approach was to use the version number
3136 from the record header as a substitute; but our protocol choice
3137 should not depend on that one because it is not authenticated
3138 by the Finished messages.
3141 *) More robust randomness gathering functions for Windows.
3142 [Jeffrey Altman <jaltman@columbia.edu>]
3144 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
3145 not set then we don't setup the error code for issuer check errors
3146 to avoid possibly overwriting other errors which the callback does
3147 handle. If an application does set the flag then we assume it knows
3148 what it is doing and can handle the new informational codes
3152 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
3153 a general "ANY" type, as such it should be able to decode anything
3154 including tagged types. However it didn't check the class so it would
3155 wrongly interpret tagged types in the same way as their universal
3156 counterpart and unknown types were just rejected. Changed so that the
3157 tagged and unknown types are handled in the same way as a SEQUENCE:
3158 that is the encoding is stored intact. There is also a new type
3159 "V_ASN1_OTHER" which is used when the class is not universal, in this
3160 case we have no idea what the actual type is so we just lump them all
3164 *) On VMS, stdout may very well lead to a file that is written to
3165 in a record-oriented fashion. That means that every write() will
3166 write a separate record, which will be read separately by the
3167 programs trying to read from it. This can be very confusing.
3169 The solution is to put a BIO filter in the way that will buffer
3170 text until a linefeed is reached, and then write everything a
3171 line at a time, so every record written will be an actual line,
3172 not chunks of lines and not (usually doesn't happen, but I've
3173 seen it once) several lines in one record. BIO_f_linebuffer() is
3176 Currently, it's a VMS-only method, because that's where it has
3177 been tested well enough.
3180 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
3181 it can return incorrect results.
3182 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
3183 but it was in 0.9.6-beta[12].)
3186 *) Disable the check for content being present when verifying detached
3187 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
3188 include zero length content when signing messages.
3191 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
3192 BIO_ctrl (for BIO pairs).
3195 *) Add DSO method for VMS.
3198 *) Bug fix: Montgomery multiplication could produce results with the
3202 *) Add RPM specification openssl.spec and modify it to build three
3203 packages. The default package contains applications, application
3204 documentation and run-time libraries. The devel package contains
3205 include files, static libraries and function documentation. The
3206 doc package contains the contents of the doc directory. The original
3207 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
3210 *) Add a large number of documentation files for many SSL routines.
3211 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
3213 *) Add a configuration entry for Sony News 4.
3214 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
3216 *) Don't set the two most significant bits to one when generating a
3217 random number < q in the DSA library.
3220 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
3221 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
3222 the underlying transport is blocking) if a handshake took place.
3223 (The default behaviour is needed by applications such as s_client
3224 and s_server that use select() to determine when to use SSL_read;
3225 but for applications that know in advance when to expect data, it
3226 just makes things more complicated.)
3229 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
3233 *) Add a few more EBCDIC conditionals that make `req' and `x509'
3234 work better on such systems.
3235 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
3237 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
3238 Update PKCS12_parse() so it copies the friendlyName and the
3239 keyid to the certificates aux info.
3242 *) Fix bug in PKCS7_verify() which caused an infinite loop
3243 if there was more than one signature.
3244 [Sven Uszpelkat <su@celocom.de>]
3246 *) Major change in util/mkdef.pl to include extra information
3247 about each symbol, as well as presentig variables as well
3248 as functions. This change means that there's n more need
3249 to rebuild the .num files when some algorithms are excluded.
3252 *) Allow the verify time to be set by an application,
3253 rather than always using the current time.
3256 *) Phase 2 verify code reorganisation. The certificate
3257 verify code now looks up an issuer certificate by a
3258 number of criteria: subject name, authority key id
3259 and key usage. It also verifies self signed certificates
3260 by the same criteria. The main comparison function is
3261 X509_check_issued() which performs these checks.
3263 Lot of changes were necessary in order to support this
3264 without completely rewriting the lookup code.
3266 Authority and subject key identifier are now cached.
3268 The LHASH 'certs' is X509_STORE has now been replaced
3269 by a STACK_OF(X509_OBJECT). This is mainly because an
3270 LHASH can't store or retrieve multiple objects with
3271 the same hash value.
3273 As a result various functions (which were all internal
3274 use only) have changed to handle the new X509_STORE
3275 structure. This will break anything that messed round
3276 with X509_STORE internally.
3278 The functions X509_STORE_add_cert() now checks for an
3279 exact match, rather than just subject name.
3281 The X509_STORE API doesn't directly support the retrieval
3282 of multiple certificates matching a given criteria, however
3283 this can be worked round by performing a lookup first
3284 (which will fill the cache with candidate certificates)
3285 and then examining the cache for matches. This is probably
3286 the best we can do without throwing out X509_LOOKUP
3287 entirely (maybe later...).
3289 The X509_VERIFY_CTX structure has been enhanced considerably.
3291 All certificate lookup operations now go via a get_issuer()
3292 callback. Although this currently uses an X509_STORE it
3293 can be replaced by custom lookups. This is a simple way
3294 to bypass the X509_STORE hackery necessary to make this
3295 work and makes it possible to use more efficient techniques
3296 in future. A very simple version which uses a simple
3297 STACK for its trusted certificate store is also provided
3298 using X509_STORE_CTX_trusted_stack().
3300 The verify_cb() and verify() callbacks now have equivalents
3301 in the X509_STORE_CTX structure.
3303 X509_STORE_CTX also has a 'flags' field which can be used
3304 to customise the verify behaviour.
3307 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
3308 excludes S/MIME capabilities.
3311 *) When a certificate request is read in keep a copy of the
3312 original encoding of the signed data and use it when outputing
3313 again. Signatures then use the original encoding rather than
3314 a decoded, encoded version which may cause problems if the
3315 request is improperly encoded.
3318 *) For consistency with other BIO_puts implementations, call
3319 buffer_write(b, ...) directly in buffer_puts instead of calling
3322 In BIO_puts, increment b->num_write as in BIO_write.
3323 [Peter.Sylvester@EdelWeb.fr]
3325 *) Fix BN_mul_word for the case where the word is 0. (We have to use
3326 BN_zero, we may not return a BIGNUM with an array consisting of
3330 *) Avoid calling abort() from within the library when problems are
3331 detected, except if preprocessor symbols have been defined
3332 (such as REF_CHECK, BN_DEBUG etc.).
3335 *) New openssl application 'rsautl'. This utility can be
3336 used for low level RSA operations. DER public key
3337 BIO/fp routines also added.
3340 *) New Configure entry and patches for compiling on QNX 4.
3341 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
3343 *) A demo state-machine implementation was sponsored by
3344 Nuron (http://www.nuron.com/) and is now available in
3345 demos/state_machine.
3348 *) New options added to the 'dgst' utility for signature
3349 generation and verification.
3352 *) Unrecognized PKCS#7 content types are now handled via a
3353 catch all ASN1_TYPE structure. This allows unsupported
3354 types to be stored as a "blob" and an application can
3355 encode and decode it manually.
3358 *) Fix various signed/unsigned issues to make a_strex.c
3360 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
3362 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
3363 length if passed a buffer. ASN1_INTEGER_to_BN failed
3364 if passed a NULL BN and its argument was negative.
3365 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
3367 *) Modification to PKCS#7 encoding routines to output definite
3368 length encoding. Since currently the whole structures are in
3369 memory there's not real point in using indefinite length
3370 constructed encoding. However if OpenSSL is compiled with
3371 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
3374 *) Added BIO_vprintf() and BIO_vsnprintf().
3377 *) Added more prefixes to parse for in the the strings written
3378 through a logging bio, to cover all the levels that are available
3379 through syslog. The prefixes are now:
3381 PANIC, EMERG, EMR => LOG_EMERG
3382 ALERT, ALR => LOG_ALERT
3383 CRIT, CRI => LOG_CRIT
3384 ERROR, ERR => LOG_ERR
3385 WARNING, WARN, WAR => LOG_WARNING
3386 NOTICE, NOTE, NOT => LOG_NOTICE
3387 INFO, INF => LOG_INFO
3388 DEBUG, DBG => LOG_DEBUG
3390 and as before, if none of those prefixes are present at the
3391 beginning of the string, LOG_ERR is chosen.
3393 On Win32, the LOG_* levels are mapped according to this:
3395 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
3396 LOG_WARNING => EVENTLOG_WARNING_TYPE
3397 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
3401 *) Made it possible to reconfigure with just the configuration
3402 argument "reconf" or "reconfigure". The command line arguments
3403 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
3404 and are retrieved from there when reconfiguring.
3408 [Assar Westerlund <assar@sics.se>, Richard Levitte]
3410 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
3413 *) The obj_dat.pl script was messing up the sorting of object
3414 names. The reason was that it compared the quoted version
3415 of strings as a result "OCSP" > "OCSP Signing" because
3416 " > SPACE. Changed script to store unquoted versions of
3417 names and add quotes on output. It was also omitting some
3418 names from the lookup table if they were given a default
3419 value (that is if SN is missing it is given the same
3420 value as LN and vice versa), these are now added on the
3421 grounds that if an object has a name we should be able to
3422 look it up. Finally added warning output when duplicate
3423 short or long names are found.
3426 *) Changes needed for Tandem NSK.
3427 [Scott Uroff <scott@xypro.com>]
3429 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
3430 RSA_padding_check_SSLv23(), special padding was never detected
3431 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
3432 version rollback attacks was not effective.
3434 In s23_clnt.c, don't use special rollback-attack detection padding
3435 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
3436 client; similarly, in s23_srvr.c, don't do the rollback check if
3437 SSL 2.0 is the only protocol enabled in the server.
3440 *) Make it possible to get hexdumps of unprintable data with 'openssl
3441 asn1parse'. By implication, the functions ASN1_parse_dump() and
3442 BIO_dump_indent() are added.
3445 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
3446 these print out strings and name structures based on various
3447 flags including RFC2253 support and proper handling of
3448 multibyte characters. Added options to the 'x509' utility
3449 to allow the various flags to be set.
3452 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
3453 Also change the functions X509_cmp_current_time() and
3454 X509_gmtime_adj() work with an ASN1_TIME structure,
3455 this will enable certificates using GeneralizedTime in validity
3456 dates to be checked.
3459 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
3460 negative public key encodings) on by default,
3461 NO_NEG_PUBKEY_BUG can be set to disable it.
3464 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
3465 content octets. An i2c_ASN1_OBJECT is unnecessary because
3466 the encoding can be trivially obtained from the structure.
3469 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
3470 not read locks (CRYPTO_r_[un]lock).
3473 *) A first attempt at creating official support for shared
3474 libraries through configuration. I've kept it so the
3475 default is static libraries only, and the OpenSSL programs
3476 are always statically linked for now, but there are
3477 preparations for dynamic linking in place.
3478 This has been tested on Linux and Tru64.
3481 *) Randomness polling function for Win9x, as described in:
3482 Peter Gutmann, Software Generation of Practically Strong
3486 *) Fix so PRNG is seeded in req if using an already existing
3490 *) New options to smime application. -inform and -outform
3491 allow alternative formats for the S/MIME message including
3492 PEM and DER. The -content option allows the content to be
3493 specified separately. This should allow things like Netscape
3494 form signing output easier to verify.
3497 *) Fix the ASN1 encoding of tags using the 'long form'.
3500 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
3501 STRING types. These convert content octets to and from the
3502 underlying type. The actual tag and length octets are
3503 already assumed to have been read in and checked. These
3504 are needed because all other string types have virtually
3505 identical handling apart from the tag. By having versions
3506 of the ASN1 functions that just operate on content octets
3507 IMPLICIT tagging can be handled properly. It also allows
3508 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
3509 and ASN1_INTEGER are identical apart from the tag.
3512 *) Change the handling of OID objects as follows:
3514 - New object identifiers are inserted in objects.txt, following
3515 the syntax given in objects.README.
3516 - objects.pl is used to process obj_mac.num and create a new
3518 - obj_dat.pl is used to create a new obj_dat.h, using the data in
3521 This is currently kind of a hack, and the perl code in objects.pl
3522 isn't very elegant, but it works as I intended. The simplest way
3523 to check that it worked correctly is to look in obj_dat.h and
3524 check the array nid_objs and make sure the objects haven't moved
3525 around (this is important!). Additions are OK, as well as
3526 consistent name changes.
3529 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
3532 *) Addition of the command line parameter '-rand file' to 'openssl req'.
3533 The given file adds to whatever has already been seeded into the
3534 random pool through the RANDFILE configuration file option or
3535 environment variable, or the default random state file.
3538 *) mkstack.pl now sorts each macro group into lexical order.
3539 Previously the output order depended on the order the files
3540 appeared in the directory, resulting in needless rewriting
3544 *) Patches to make OpenSSL compile under Win32 again. Mostly
3545 work arounds for the VC++ problem that it treats func() as
3546 func(void). Also stripped out the parts of mkdef.pl that
3547 added extra typesafe functions: these no longer exist.
3550 *) Reorganisation of the stack code. The macros are now all
3551 collected in safestack.h . Each macro is defined in terms of
3552 a "stack macro" of the form SKM_<name>(type, a, b). The
3553 DEBUG_SAFESTACK is now handled in terms of function casts,
3554 this has the advantage of retaining type safety without the
3555 use of additional functions. If DEBUG_SAFESTACK is not defined
3556 then the non typesafe macros are used instead. Also modified the
3557 mkstack.pl script to handle the new form. Needs testing to see
3558 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
3559 the default if no major problems. Similar behaviour for ASN1_SET_OF
3560 and PKCS12_STACK_OF.
3563 *) When some versions of IIS use the 'NET' form of private key the
3564 key derivation algorithm is different. Normally MD5(password) is
3565 used as a 128 bit RC4 key. In the modified case
3566 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
3567 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
3568 as the old Netscape_RSA functions except they have an additional
3569 'sgckey' parameter which uses the modified algorithm. Also added
3570 an -sgckey command line option to the rsa utility. Thanks to
3571 Adrian Peck <bertie@ncipher.com> for posting details of the modified
3572 algorithm to openssl-dev.
3575 *) The evp_local.h macros were using 'c.##kname' which resulted in
3576 invalid expansion on some systems (SCO 5.0.5 for example).
3577 Corrected to 'c.kname'.
3578 [Phillip Porch <root@theporch.com>]
3580 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
3581 a STACK of email addresses from a certificate or request, these look
3582 in the subject name and the subject alternative name extensions and
3583 omit any duplicate addresses.
3586 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
3587 This makes DSA verification about 2 % faster.
3590 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
3591 (meaning that now 2^5 values will be precomputed, which is only 4 KB
3592 plus overhead for 1024 bit moduli).
3593 This makes exponentiations about 0.5 % faster for 1024 bit
3594 exponents (as measured by "openssl speed rsa2048").
3597 *) Rename memory handling macros to avoid conflicts with other
3599 Malloc => OPENSSL_malloc
3600 Malloc_locked => OPENSSL_malloc_locked
3601 Realloc => OPENSSL_realloc
3602 Free => OPENSSL_free
3605 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
3606 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
3609 *) CygWin32 support.
3610 [John Jarvie <jjarvie@newsguy.com>]
3612 *) The type-safe stack code has been rejigged. It is now only compiled
3613 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
3614 by default all type-specific stack functions are "#define"d back to
3615 standard stack functions. This results in more streamlined output
3616 but retains the type-safety checking possibilities of the original
3620 *) The STACK code has been cleaned up, and certain type declarations
3621 that didn't make a lot of sense have been brought in line. This has
3622 also involved a cleanup of sorts in safestack.h to more correctly
3623 map type-safe stack functions onto their plain stack counterparts.
3624 This work has also resulted in a variety of "const"ifications of
3625 lots of the code, especially "_cmp" operations which should normally
3626 be prototyped with "const" parameters anyway.
3629 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
3630 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
3631 (The PRNG state consists of two parts, the large pool 'state' and 'md',
3632 where all of 'md' is used each time the PRNG is used, but 'state'
3633 is used only indexed by a cyclic counter. As entropy may not be
3634 well distributed from the beginning, 'md' is important as a
3635 chaining variable. However, the output function chains only half
3636 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
3637 all of 'md', and seeding with STATE_SIZE dummy bytes will result
3638 in all of 'state' being rewritten, with the new values depending
3639 on virtually all of 'md'. This overcomes the 80 bit limitation.)
3642 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
3643 the handshake is continued after ssl_verify_cert_chain();
3644 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
3645 can lead to 'unexplainable' connection aborts later.
3646 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
3648 *) Major EVP API cipher revision.
3649 Add hooks for extra EVP features. This allows various cipher
3650 parameters to be set in the EVP interface. Support added for variable
3651 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
3652 setting of RC2 and RC5 parameters.
3654 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
3657 Remove lots of duplicated code from the EVP library. For example *every*
3658 cipher init() function handles the 'iv' in the same way according to the
3659 cipher mode. They also all do nothing if the 'key' parameter is NULL and
3660 for CFB and OFB modes they zero ctx->num.
3662 New functionality allows removal of S/MIME code RC2 hack.
3664 Most of the routines have the same form and so can be declared in terms
3667 By shifting this to the top level EVP_CipherInit() it can be removed from
3668 all individual ciphers. If the cipher wants to handle IVs or keys
3669 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
3672 Change lots of functions like EVP_EncryptUpdate() to now return a
3673 value: although software versions of the algorithms cannot fail
3674 any installed hardware versions can.
3677 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
3678 this option is set, tolerate broken clients that send the negotiated
3679 protocol version number instead of the requested protocol version
3683 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
3684 i.e. non-zero for export ciphersuites, zero otherwise.
3685 Previous versions had this flag inverted, inconsistent with
3686 rsa_tmp_cb (..._TMP_RSA_CB).
3687 [Bodo Moeller; problem reported by Amit Chopra]
3689 *) Add missing DSA library text string. Work around for some IIS
3690 key files with invalid SEQUENCE encoding.
3693 *) Add a document (doc/standards.txt) that list all kinds of standards
3694 and so on that are implemented in OpenSSL.
3697 *) Enhance c_rehash script. Old version would mishandle certificates
3698 with the same subject name hash and wouldn't handle CRLs at all.
3699 Added -fingerprint option to crl utility, to support new c_rehash
3703 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
3706 *) Fix for SSL server purpose checking. Server checking was
3707 rejecting certificates which had extended key usage present
3708 but no ssl client purpose.
3709 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
3711 *) Make PKCS#12 code work with no password. The PKCS#12 spec
3712 is a little unclear about how a blank password is handled.
3713 Since the password in encoded as a BMPString with terminating
3714 double NULL a zero length password would end up as just the
3715 double NULL. However no password at all is different and is
3716 handled differently in the PKCS#12 key generation code. NS
3717 treats a blank password as zero length. MSIE treats it as no
3718 password on export: but it will try both on import. We now do
3719 the same: PKCS12_parse() tries zero length and no password if
3720 the password is set to "" or NULL (NULL is now a valid password:
3721 it wasn't before) as does the pkcs12 application.
3724 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
3725 perror when PEM_read_bio_X509_REQ fails, the error message must
3726 be obtained from the error queue.
3729 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
3730 it in ERR_remove_state if appropriate, and change ERR_get_state
3731 accordingly to avoid race conditions (this is necessary because
3732 thread_hash is no longer constant once set).
3735 *) Bugfix for linux-elf makefile.one.
3738 *) RSA_get_default_method() will now cause a default
3739 RSA_METHOD to be chosen if one doesn't exist already.
3740 Previously this was only set during a call to RSA_new()
3741 or RSA_new_method(NULL) meaning it was possible for
3742 RSA_get_default_method() to return NULL.
3745 *) Added native name translation to the existing DSO code
3746 that will convert (if the flag to do so is set) filenames
3747 that are sufficiently small and have no path information
3748 into a canonical native form. Eg. "blah" converted to
3749 "libblah.so" or "blah.dll" etc.
3752 *) New function ERR_error_string_n(e, buf, len) which is like
3753 ERR_error_string(e, buf), but writes at most 'len' bytes
3754 including the 0 terminator. For ERR_error_string_n, 'buf'
3756 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
3758 *) CONF library reworked to become more general. A new CONF
3759 configuration file reader "class" is implemented as well as a
3760 new functions (NCONF_*, for "New CONF") to handle it. The now
3761 old CONF_* functions are still there, but are reimplemented to
3762 work in terms of the new functions. Also, a set of functions
3763 to handle the internal storage of the configuration data is
3764 provided to make it easier to write new configuration file
3765 reader "classes" (I can definitely see something reading a
3766 configuration file in XML format, for example), called _CONF_*,
3767 or "the configuration storage API"...
3769 The new configuration file reading functions are:
3771 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
3772 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
3774 NCONF_default, NCONF_WIN32
3776 NCONF_dump_fp, NCONF_dump_bio
3778 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
3779 NCONF_new creates a new CONF object. This works in the same way
3780 as other interfaces in OpenSSL, like the BIO interface.
3781 NCONF_dump_* dump the internal storage of the configuration file,
3782 which is useful for debugging. All other functions take the same
3783 arguments as the old CONF_* functions wth the exception of the
3784 first that must be a `CONF *' instead of a `LHASH *'.
3786 To make it easer to use the new classes with the old CONF_* functions,
3787 the function CONF_set_default_method is provided.
3790 *) Add '-tls1' option to 'openssl ciphers', which was already
3791 mentioned in the documentation but had not been implemented.
3792 (This option is not yet really useful because even the additional
3793 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
3796 *) Initial DSO code added into libcrypto for letting OpenSSL (and
3797 OpenSSL-based applications) load shared libraries and bind to
3798 them in a portable way.
3799 [Geoff Thorpe, with contributions from Richard Levitte]
3801 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
3803 *) Make sure _lrotl and _lrotr are only used with MSVC.
3805 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
3806 (the default implementation of RAND_status).
3808 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
3809 to '-clrext' (= clear extensions), as intended and documented.
3810 [Bodo Moeller; inconsistency pointed out by Michael Attili
3813 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
3814 was larger than the MD block size.
3815 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
3817 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
3818 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
3819 using the passed key: if the passed key was a private key the result
3820 of X509_print(), for example, would be to print out all the private key
3824 *) des_quad_cksum() byte order bug fix.
3825 [Ulf Möller, using the problem description in krb4-0.9.7, where
3826 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
3828 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
3830 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
3832 *) For easily testing in shell scripts whether some command
3833 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
3834 returns with exit code 0 iff no command of the given name is available.
3835 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
3836 the output goes to stdout and nothing is printed to stderr.
3837 Additional arguments are always ignored.
3839 Since for each cipher there is a command of the same name,
3840 the 'no-cipher' compilation switches can be tested this way.
3842 ('openssl no-XXX' is not able to detect pseudo-commands such
3843 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
3846 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
3849 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
3850 is set; it will be thrown away anyway because each handshake creates
3852 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
3853 to parameters -- in previous versions (since OpenSSL 0.9.3) the
3854 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
3855 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
3858 *) New s_client option -ign_eof: EOF at stdin is ignored, and
3859 'Q' and 'R' lose their special meanings (quit/renegotiate).
3860 This is part of what -quiet does; unlike -quiet, -ign_eof
3861 does not suppress any output.
3864 *) Add compatibility options to the purpose and trust code. The
3865 purpose X509_PURPOSE_ANY is "any purpose" which automatically
3866 accepts a certificate or CA, this was the previous behaviour,
3867 with all the associated security issues.
3869 X509_TRUST_COMPAT is the old trust behaviour: only and
3870 automatically trust self signed roots in certificate store. A
3871 new trust setting X509_TRUST_DEFAULT is used to specify that
3872 a purpose has no associated trust setting and it should instead
3873 use the value in the default purpose.
3876 *) Fix the PKCS#8 DSA private key code so it decodes keys again
3877 and fix a memory leak.
3880 *) In util/mkerr.pl (which implements 'make errors'), preserve
3881 reason strings from the previous version of the .c file, as
3882 the default to have only downcase letters (and digits) in
3883 automatically generated reasons codes is not always appropriate.
3886 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
3887 using strerror. Previously, ERR_reason_error_string() returned
3888 library names as reason strings for SYSerr; but SYSerr is a special
3889 case where small numbers are errno values, not library numbers.
3892 *) Add '-dsaparam' option to 'openssl dhparam' application. This
3893 converts DSA parameters into DH parameters. (When creating parameters,
3894 DSA_generate_parameters is used.)
3897 *) Include 'length' (recommended exponent length) in C code generated
3898 by 'openssl dhparam -C'.
3901 *) The second argument to set_label in perlasm was already being used
3902 so couldn't be used as a "file scope" flag. Moved to third argument
3906 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
3907 instead of RAND_bytes for encryption IVs and salts.
3910 *) Include RAND_status() into RAND_METHOD instead of implementing
3911 it only for md_rand.c Otherwise replacing the PRNG by calling
3912 RAND_set_rand_method would be impossible.
3915 *) Don't let DSA_generate_key() enter an infinite loop if the random
3916 number generation fails.
3919 *) New 'rand' application for creating pseudo-random output.
3922 *) Added configuration support for Linux/IA64
3923 [Rolf Haberrecker <rolf@suse.de>]
3925 *) Assembler module support for Mingw32.
3928 *) Shared library support for HPUX (in shlib/).
3929 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
3931 *) Shared library support for Solaris gcc.
3932 [Lutz Behnke <behnke@trustcenter.de>]
3934 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
3936 *) PKCS7_encrypt() was adding text MIME headers twice because they
3937 were added manually and by SMIME_crlf_copy().
3940 *) In bntest.c don't call BN_rand with zero bits argument.
3941 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
3943 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
3944 case was implemented. This caused BN_div_recp() to fail occasionally.
3947 *) Add an optional second argument to the set_label() in the perl
3948 assembly language builder. If this argument exists and is set
3949 to 1 it signals that the assembler should use a symbol whose
3950 scope is the entire file, not just the current function. This
3951 is needed with MASM which uses the format label:: for this scope.
3952 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
3954 *) Change the ASN1 types so they are typedefs by default. Before
3955 almost all types were #define'd to ASN1_STRING which was causing
3956 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
3960 *) Change names of new functions to the new get1/get0 naming
3961 convention: After 'get1', the caller owns a reference count
3962 and has to call ..._free; 'get0' returns a pointer to some
3963 data structure without incrementing reference counters.
3964 (Some of the existing 'get' functions increment a reference
3965 counter, some don't.)
3966 Similarly, 'set1' and 'add1' functions increase reference
3967 counters or duplicate objects.
3970 *) Allow for the possibility of temp RSA key generation failure:
3971 the code used to assume it always worked and crashed on failure.
3974 *) Fix potential buffer overrun problem in BIO_printf().
3975 [Ulf Möller, using public domain code by Patrick Powell; problem
3976 pointed out by David Sacerdote <das33@cornell.edu>]
3978 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
3979 RAND_egd() and RAND_status(). In the command line application,
3980 the EGD socket can be specified like a seed file using RANDFILE
3984 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
3985 Some CAs (e.g. Verisign) distribute certificates in this form.
3988 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
3989 list to exclude them. This means that no special compilation option
3990 is needed to use anonymous DH: it just needs to be included in the
3994 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
3995 EVP_MD_type. The old functionality is available in a new macro called
3996 EVP_MD_md(). Change code that uses it and update docs.
3999 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
4000 where the 'void *' argument is replaced by a function pointer argument.
4001 Previously 'void *' was abused to point to functions, which works on
4002 many platforms, but is not correct. As these functions are usually
4003 called by macros defined in OpenSSL header files, most source code
4004 should work without changes.
4007 *) <openssl/opensslconf.h> (which is created by Configure) now contains
4008 sections with information on -D... compiler switches used for
4009 compiling the library so that applications can see them. To enable
4010 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
4011 must be defined. E.g.,
4012 #define OPENSSL_ALGORITHM_DEFINES
4013 #include <openssl/opensslconf.h>
4014 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
4015 [Richard Levitte, Ulf and Bodo Möller]
4017 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
4021 *) Change the 'other' type in certificate aux info to a STACK_OF
4022 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
4023 the required ASN1 format: arbitrary types determined by an OID.
4026 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
4027 argument to 'req'. This is not because the function is newer or
4028 better than others it just uses the work 'NEW' in the certificate
4029 request header lines. Some software needs this.
4032 *) Reorganise password command line arguments: now passwords can be
4033 obtained from various sources. Delete the PEM_cb function and make
4034 it the default behaviour: i.e. if the callback is NULL and the
4035 usrdata argument is not NULL interpret it as a null terminated pass
4036 phrase. If usrdata and the callback are NULL then the pass phrase
4037 is prompted for as usual.
4040 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
4041 the support is automatically enabled. The resulting binaries will
4042 autodetect the card and use it if present.
4043 [Ben Laurie and Compaq Inc.]
4045 *) Work around for Netscape hang bug. This sends certificate request
4046 and server done in one record. Since this is perfectly legal in the
4047 SSL/TLS protocol it isn't a "bug" option and is on by default. See
4048 the bugs/SSLv3 entry for more info.
4051 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
4054 *) Add -rand argument to smime and pkcs12 applications and read/write
4058 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
4061 *) Add command line password options to the remaining applications.
4064 *) Bug fix for BN_div_recp() for numerators with an even number of
4068 *) More tests in bntest.c, and changed test_bn output.
4071 *) ./config recognizes MacOS X now.
4074 *) Bug fix for BN_div() when the first words of num and divsor are
4075 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
4078 *) Add support for various broken PKCS#8 formats, and command line
4079 options to produce them.
4082 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
4083 get temporary BIGNUMs from a BN_CTX.
4086 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
4090 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
4091 include a #define from the old name to the new. The original intent
4092 was that statically linked binaries could for example just call
4093 SSLeay_add_all_ciphers() to just add ciphers to the table and not
4094 link with digests. This never worked becayse SSLeay_add_all_digests()
4095 and SSLeay_add_all_ciphers() were in the same source file so calling
4096 one would link with the other. They are now in separate source files.
4099 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
4102 *) Use a less unusual form of the Miller-Rabin primality test (it used
4103 a binary algorithm for exponentiation integrated into the Miller-Rabin
4104 loop, our standard modexp algorithms are faster).
4107 *) Support for the EBCDIC character set completed.
4108 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
4110 *) Source code cleanups: use const where appropriate, eliminate casts,
4111 use void * instead of char * in lhash.
4114 *) Bugfix: ssl3_send_server_key_exchange was not restartable
4115 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
4116 this the server could overwrite ephemeral keys that the client
4120 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
4121 using 50 iterations of the Rabin-Miller test.
4123 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
4124 iterations of the Rabin-Miller test as required by the appendix
4125 to FIPS PUB 186[-1]) instead of DSA_is_prime.
4126 As BN_is_prime_fasttest includes trial division, DSA parameter
4127 generation becomes much faster.
4129 This implies a change for the callback functions in DSA_is_prime
4130 and DSA_generate_parameters: The callback function is called once
4131 for each positive witness in the Rabin-Miller test, not just
4132 occasionally in the inner loop; and the parameters to the
4133 callback function now provide an iteration count for the outer
4134 loop rather than for the current invocation of the inner loop.
4135 DSA_generate_parameters additionally can call the callback
4136 function with an 'iteration count' of -1, meaning that a
4137 candidate has passed the trial division test (when q is generated
4138 from an application-provided seed, trial division is skipped).
4141 *) New function BN_is_prime_fasttest that optionally does trial
4142 division before starting the Rabin-Miller test and has
4143 an additional BN_CTX * argument (whereas BN_is_prime always
4144 has to allocate at least one BN_CTX).
4145 'callback(1, -1, cb_arg)' is called when a number has passed the
4146 trial division stage.
4149 *) Fix for bug in CRL encoding. The validity dates weren't being handled
4153 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
4156 *) New function BN_pseudo_rand().
4159 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
4160 bignum version of BN_from_montgomery() with the working code from
4161 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
4165 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
4166 made it impossible to use the same SSL_SESSION data structure in
4167 SSL2 clients in multiple threads.
4170 *) The return value of RAND_load_file() no longer counts bytes obtained
4171 by stat(). RAND_load_file(..., -1) is new and uses the complete file
4172 to seed the PRNG (previously an explicit byte count was required).
4173 [Ulf Möller, Bodo Möller]
4175 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
4176 used (char *) instead of (void *) and had casts all over the place.
4179 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
4182 *) Retain source code compatibility for BN_prime_checks macro:
4183 BN_is_prime(..., BN_prime_checks, ...) now uses
4184 BN_prime_checks_for_size to determine the appropriate number of
4185 Rabin-Miller iterations.
4188 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
4189 DH_CHECK_P_NOT_SAFE_PRIME.
4190 (Check if this is true? OpenPGP calls them "strong".)
4193 *) Merge the functionality of "dh" and "gendh" programs into a new program
4194 "dhparam". The old programs are retained for now but will handle DH keys
4195 (instead of parameters) in future.
4198 *) Make the ciphers, s_server and s_client programs check the return values
4199 when a new cipher list is set.
4202 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
4203 ciphers. Before when the 56bit ciphers were enabled the sorting was
4206 The syntax for the cipher sorting has been extended to support sorting by
4207 cipher-strength (using the strength_bits hard coded in the tables).
4208 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
4210 Fix a bug in the cipher-command parser: when supplying a cipher command
4211 string with an "undefined" symbol (neither command nor alphanumeric
4212 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
4213 an error is flagged.
4215 Due to the strength-sorting extension, the code of the
4216 ssl_create_cipher_list() function was completely rearranged. I hope that
4217 the readability was also increased :-)
4218 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
4220 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
4221 for the first serial number and places 2 in the serial number file. This
4222 avoids problems when the root CA is created with serial number zero and
4223 the first user certificate has the same issuer name and serial number
4227 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
4228 the new code. Add documentation for this stuff.
4231 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
4232 X509_*() to X509at_*() on the grounds that they don't handle X509
4233 structures and behave in an analagous way to the X509v3 functions:
4234 they shouldn't be called directly but wrapper functions should be used
4237 So we also now have some wrapper functions that call the X509at functions
4238 when passed certificate requests. (TO DO: similar things can be done with
4239 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
4240 things. Some of these need some d2i or i2d and print functionality
4241 because they handle more complex structures.)
4244 *) Add missing #ifndefs that caused missing symbols when building libssl
4245 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
4246 NO_RSA in ssl/s2*.c.
4247 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
4249 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
4250 has a return value which indicates the quality of the random data
4251 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
4252 error queue. New function RAND_pseudo_bytes() generates output that is
4253 guaranteed to be unique but not unpredictable. RAND_add is like
4254 RAND_seed, but takes an extra argument for an entropy estimate
4255 (RAND_seed always assumes full entropy).
4258 *) Do more iterations of Rabin-Miller probable prime test (specifically,
4259 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
4260 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
4261 in crypto/bn/bn_prime.c for the complete table). This guarantees a
4262 false-positive rate of at most 2^-80 for random input.
4265 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
4268 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
4269 in the 0.9.5 release), this returns the chain
4270 from an X509_CTX structure with a dup of the stack and all
4271 the X509 reference counts upped: so the stack will exist
4272 after X509_CTX_cleanup() has been called. Modify pkcs12.c
4275 Also make SSL_SESSION_print() print out the verify return
4279 *) Add manpage for the pkcs12 command. Also change the default
4280 behaviour so MAC iteration counts are used unless the new
4281 -nomaciter option is used. This improves file security and
4282 only older versions of MSIE (4.0 for example) need it.
4285 *) Honor the no-xxx Configure options when creating .DEF files.
4288 *) Add PKCS#10 attributes to field table: challengePassword,
4289 unstructuredName and unstructuredAddress. These are taken from
4290 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
4291 international characters are used.
4293 More changes to X509_ATTRIBUTE code: allow the setting of types
4294 based on strings. Remove the 'loc' parameter when adding
4295 attributes because these will be a SET OF encoding which is sorted
4299 *) Initial changes to the 'req' utility to allow request generation
4300 automation. This will allow an application to just generate a template
4301 file containing all the field values and have req construct the
4304 Initial support for X509_ATTRIBUTE handling. Stacks of these are
4305 used all over the place including certificate requests and PKCS#7
4306 structures. They are currently handled manually where necessary with
4307 some primitive wrappers for PKCS#7. The new functions behave in a
4308 manner analogous to the X509 extension functions: they allow
4309 attributes to be looked up by NID and added.
4311 Later something similar to the X509V3 code would be desirable to
4312 automatically handle the encoding, decoding and printing of the
4313 more complex types. The string types like challengePassword can
4314 be handled by the string table functions.
4316 Also modified the multi byte string table handling. Now there is
4317 a 'global mask' which masks out certain types. The table itself
4318 can use the flag STABLE_NO_MASK to ignore the mask setting: this
4319 is useful when for example there is only one permissible type
4320 (as in countryName) and using the mask might result in no valid
4324 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
4325 SSL_get_peer_finished to allow applications to obtain the latest
4326 Finished messages sent to the peer or expected from the peer,
4327 respectively. (SSL_get_peer_finished is usually the Finished message
4328 actually received from the peer, otherwise the protocol will be aborted.)
4330 As the Finished message are message digests of the complete handshake
4331 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
4332 be used for external authentication procedures when the authentication
4333 provided by SSL/TLS is not desired or is not enough.
4336 *) Enhanced support for Alpha Linux is added. Now ./config checks if
4337 the host supports BWX extension and if Compaq C is present on the
4338 $PATH. Just exploiting of the BWX extension results in 20-30%
4339 performance kick for some algorithms, e.g. DES and RC4 to mention
4340 a couple. Compaq C in turn generates ~20% faster code for MD5 and
4344 *) Add support for MS "fast SGC". This is arguably a violation of the
4345 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
4346 weak crypto and after checking the certificate is SGC a second one
4347 with strong crypto. MS SGC stops the first handshake after receiving
4348 the server certificate message and sends a second client hello. Since
4349 a server will typically do all the time consuming operations before
4350 expecting any further messages from the client (server key exchange
4351 is the most expensive) there is little difference between the two.
4353 To get OpenSSL to support MS SGC we have to permit a second client
4354 hello message after we have sent server done. In addition we have to
4355 reset the MAC if we do get this second client hello.
4358 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
4359 if a DER encoded private key is RSA or DSA traditional format. Changed
4360 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
4361 format DER encoded private key. Newer code should use PKCS#8 format which
4362 has the key type encoded in the ASN1 structure. Added DER private key
4363 support to pkcs8 application.
4366 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
4367 ciphersuites has been selected (as required by the SSL 3/TLS 1
4368 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
4369 is set, we interpret this as a request to violate the specification
4370 (the worst that can happen is a handshake failure, and 'correct'
4371 behaviour would result in a handshake failure anyway).
4374 *) In SSL_CTX_add_session, take into account that there might be multiple
4375 SSL_SESSION structures with the same session ID (e.g. when two threads
4376 concurrently obtain them from an external cache).
4377 The internal cache can handle only one SSL_SESSION with a given ID,
4378 so if there's a conflict, we now throw out the old one to achieve
4382 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
4383 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
4384 some routines that use cipher OIDs: some ciphers do not have OIDs
4385 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
4389 *) Simplify the trust setting structure and code. Now we just have
4390 two sequences of OIDs for trusted and rejected settings. These will
4391 typically have values the same as the extended key usage extension
4392 and any application specific purposes.
4394 The trust checking code now has a default behaviour: it will just
4395 check for an object with the same NID as the passed id. Functions can
4396 be provided to override either the default behaviour or the behaviour
4397 for a given id. SSL client, server and email already have functions
4398 in place for compatibility: they check the NID and also return "trusted"
4399 if the certificate is self signed.
4402 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
4403 traditional format into an EVP_PKEY structure.
4406 *) Add a password callback function PEM_cb() which either prompts for
4407 a password if usr_data is NULL or otherwise assumes it is a null
4408 terminated password. Allow passwords to be passed on command line
4409 environment or config files in a few more utilities.
4412 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
4413 keys. Add some short names for PKCS#8 PBE algorithms and allow them
4414 to be specified on the command line for the pkcs8 and pkcs12 utilities.
4415 Update documentation.
4418 *) Support for ASN1 "NULL" type. This could be handled before by using
4419 ASN1_TYPE but there wasn't any function that would try to read a NULL
4420 and produce an error if it couldn't. For compatibility we also have
4421 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
4422 don't allocate anything because they don't need to.
4425 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
4427 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
4429 *) Rebuild of the memory allocation routines used by OpenSSL code and
4430 possibly others as well. The purpose is to make an interface that
4431 provide hooks so anyone can build a separate set of allocation and
4432 deallocation routines to be used by OpenSSL, for example memory
4433 pool implementations, or something else, which was previously hard
4434 since Malloc(), Realloc() and Free() were defined as macros having
4435 the values malloc, realloc and free, respectively (except for Win32
4436 compilations). The same is provided for memory debugging code.
4437 OpenSSL already comes with functionality to find memory leaks, but
4438 this gives people a chance to debug other memory problems.
4440 With these changes, a new set of functions and macros have appeared:
4442 CRYPTO_set_mem_debug_functions() [F]
4443 CRYPTO_get_mem_debug_functions() [F]
4444 CRYPTO_dbg_set_options() [F]
4445 CRYPTO_dbg_get_options() [F]
4446 CRYPTO_malloc_debug_init() [M]
4448 The memory debug functions are NULL by default, unless the library
4449 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
4450 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
4451 gives the standard debugging functions that come with OpenSSL) or
4452 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
4453 provided by the library user) must be used. When the standard
4454 debugging functions are used, CRYPTO_dbg_set_options can be used to
4455 request additional information:
4456 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
4457 the CRYPTO_MDEBUG_xxx macro when compiling the library.
4459 Also, things like CRYPTO_set_mem_functions will always give the
4460 expected result (the new set of functions is used for allocation
4461 and deallocation) at all times, regardless of platform and compiler
4464 To finish it up, some functions that were never use in any other
4465 way than through macros have a new API and new semantic:
4468 CRYPTO_dbg_realloc()
4471 All macros of value have retained their old syntax.
4472 [Richard Levitte and Bodo Moeller]
4474 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
4475 ordering of SMIMECapabilities wasn't in "strength order" and there
4476 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
4480 *) Some ASN1 types with illegal zero length encoding (INTEGER,
4481 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
4482 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
4484 *) Merge in my S/MIME library for OpenSSL. This provides a simple
4485 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
4486 functionality to handle multipart/signed properly) and a utility
4487 called 'smime' to call all this stuff. This is based on code I
4488 originally wrote for Celo who have kindly allowed it to be
4489 included in OpenSSL.
4492 *) Add variants des_set_key_checked and des_set_key_unchecked of
4493 des_set_key (aka des_key_sched). Global variable des_check_key
4494 decides which of these is called by des_set_key; this way
4495 des_check_key behaves as it always did, but applications and
4496 the library itself, which was buggy for des_check_key == 1,
4497 have a cleaner way to pick the version they need.
4500 *) New function PKCS12_newpass() which changes the password of a
4504 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
4505 dynamic mix. In both cases the ids can be used as an index into the
4506 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
4507 functions so they accept a list of the field values and the
4508 application doesn't need to directly manipulate the X509_TRUST
4512 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
4516 *) Modify the way the V3 extension code looks up extensions. This now
4517 works in a similar way to the object code: we have some "standard"
4518 extensions in a static table which is searched with OBJ_bsearch()
4519 and the application can add dynamic ones if needed. The file
4520 crypto/x509v3/ext_dat.h now has the info: this file needs to be
4521 updated whenever a new extension is added to the core code and kept
4522 in ext_nid order. There is a simple program 'tabtest.c' which checks
4523 this. New extensions are not added too often so this file can readily
4524 be maintained manually.
4526 There are two big advantages in doing things this way. The extensions
4527 can be looked up immediately and no longer need to be "added" using
4528 X509V3_add_standard_extensions(): this function now does nothing.
4529 [Side note: I get *lots* of email saying the extension code doesn't
4530 work because people forget to call this function]
4531 Also no dynamic allocation is done unless new extensions are added:
4532 so if we don't add custom extensions there is no need to call
4533 X509V3_EXT_cleanup().
4536 *) Modify enc utility's salting as follows: make salting the default. Add a
4537 magic header, so unsalted files fail gracefully instead of just decrypting
4538 to garbage. This is because not salting is a big security hole, so people
4539 should be discouraged from doing it.
4542 *) Fixes and enhancements to the 'x509' utility. It allowed a message
4543 digest to be passed on the command line but it only used this
4544 parameter when signing a certificate. Modified so all relevant
4545 operations are affected by the digest parameter including the
4546 -fingerprint and -x509toreq options. Also -x509toreq choked if a
4547 DSA key was used because it didn't fix the digest.
4550 *) Initial certificate chain verify code. Currently tests the untrusted
4551 certificates for consistency with the verify purpose (which is set
4552 when the X509_STORE_CTX structure is set up) and checks the pathlength.
4554 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
4555 this is because it will reject chains with invalid extensions whereas
4556 every previous version of OpenSSL and SSLeay made no checks at all.
4558 Trust code: checks the root CA for the relevant trust settings. Trust
4559 settings have an initial value consistent with the verify purpose: e.g.
4560 if the verify purpose is for SSL client use it expects the CA to be
4561 trusted for SSL client use. However the default value can be changed to
4562 permit custom trust settings: one example of this would be to only trust
4563 certificates from a specific "secure" set of CAs.
4565 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
4566 which should be used for version portability: especially since the
4567 verify structure is likely to change more often now.
4569 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
4570 to set them. If not set then assume SSL clients will verify SSL servers
4573 Two new options to the verify program: -untrusted allows a set of
4574 untrusted certificates to be passed in and -purpose which sets the
4575 intended purpose of the certificate. If a purpose is set then the
4576 new chain verify code is used to check extension consistency.
4579 *) Support for the authority information access extension.
4582 *) Modify RSA and DSA PEM read routines to transparently handle
4583 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
4584 public keys in a format compatible with certificate
4585 SubjectPublicKeyInfo structures. Unfortunately there were already
4586 functions called *_PublicKey_* which used various odd formats so
4587 these are retained for compatibility: however the DSA variants were
4588 never in a public release so they have been deleted. Changed dsa/rsa
4589 utilities to handle the new format: note no releases ever handled public
4590 keys so we should be OK.
4592 The primary motivation for this change is to avoid the same fiasco
4593 that dogs private keys: there are several incompatible private key
4594 formats some of which are standard and some OpenSSL specific and
4595 require various evil hacks to allow partial transparent handling and
4596 even then it doesn't work with DER formats. Given the option anything
4597 other than PKCS#8 should be dumped: but the other formats have to
4598 stay in the name of compatibility.
4600 With public keys and the benefit of hindsight one standard format
4601 is used which works with EVP_PKEY, RSA or DSA structures: though
4602 it clearly returns an error if you try to read the wrong kind of key.
4604 Added a -pubkey option to the 'x509' utility to output the public key.
4605 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
4606 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
4607 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
4608 that do the same as the EVP_PKEY_assign_*() except they up the
4609 reference count of the added key (they don't "swallow" the
4613 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
4614 CRLs would fail if the file contained no certificates or no CRLs:
4615 added a new function to read in both types and return the number
4616 read: this means that if none are read it will be an error. The
4617 DER versions of the certificate and CRL reader would always fail
4618 because it isn't possible to mix certificates and CRLs in DER format
4619 without choking one or the other routine. Changed this to just read
4620 a certificate: this is the best we can do. Also modified the code
4621 in apps/verify.c to take notice of return codes: it was previously
4622 attempting to read in certificates from NULL pointers and ignoring
4623 any errors: this is one reason why the cert and CRL reader seemed
4624 to work. It doesn't check return codes from the default certificate
4625 routines: these may well fail if the certificates aren't installed.
4628 *) Code to support otherName option in GeneralName.
4631 *) First update to verify code. Change the verify utility
4632 so it warns if it is passed a self signed certificate:
4633 for consistency with the normal behaviour. X509_verify
4634 has been modified to it will now verify a self signed
4635 certificate if *exactly* the same certificate appears
4636 in the store: it was previously impossible to trust a
4637 single self signed certificate. This means that:
4638 openssl verify ss.pem
4639 now gives a warning about a self signed certificate but
4640 openssl verify -CAfile ss.pem ss.pem
4644 *) For servers, store verify_result in SSL_SESSION data structure
4645 (and add it to external session representation).
4646 This is needed when client certificate verifications fails,
4647 but an application-provided verification callback (set by
4648 SSL_CTX_set_cert_verify_callback) allows accepting the session
4649 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
4650 but returns 1): When the session is reused, we have to set
4651 ssl->verify_result to the appropriate error code to avoid
4653 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
4655 *) Fix a bug in the new PKCS#7 code: it didn't consider the
4656 case in PKCS7_dataInit() where the signed PKCS7 structure
4657 didn't contain any existing data because it was being created.
4658 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
4660 *) Add a salt to the key derivation routines in enc.c. This
4661 forms the first 8 bytes of the encrypted file. Also add a
4662 -S option to allow a salt to be input on the command line.
4665 *) New function X509_cmp(). Oddly enough there wasn't a function
4666 to compare two certificates. We do this by working out the SHA1
4667 hash and comparing that. X509_cmp() will be needed by the trust
4671 *) SSL_get1_session() is like SSL_get_session(), but increments
4672 the reference count in the SSL_SESSION returned.
4673 [Geoff Thorpe <geoff@eu.c2.net>]
4675 *) Fix for 'req': it was adding a null to request attributes.
4676 Also change the X509_LOOKUP and X509_INFO code to handle
4677 certificate auxiliary information.
4680 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
4684 *) Add the possibility to add extra information to the memory leak
4685 detecting output, to form tracebacks, showing from where each
4686 allocation was originated: CRYPTO_push_info("constant string") adds
4687 the string plus current file name and line number to a per-thread
4688 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
4689 is like calling CYRPTO_pop_info() until the stack is empty.
4690 Also updated memory leak detection code to be multi-thread-safe.
4693 *) Add options -text and -noout to pkcs7 utility and delete the
4694 encryption options which never did anything. Update docs.
4697 *) Add options to some of the utilities to allow the pass phrase
4698 to be included on either the command line (not recommended on
4699 OSes like Unix) or read from the environment. Update the
4700 manpages and fix a few bugs.
4703 *) Add a few manpages for some of the openssl commands.
4706 *) Fix the -revoke option in ca. It was freeing up memory twice,
4707 leaking and not finding already revoked certificates.
4710 *) Extensive changes to support certificate auxiliary information.
4711 This involves the use of X509_CERT_AUX structure and X509_AUX
4712 functions. An X509_AUX function such as PEM_read_X509_AUX()
4713 can still read in a certificate file in the usual way but it
4714 will also read in any additional "auxiliary information". By
4715 doing things this way a fair degree of compatibility can be
4716 retained: existing certificates can have this information added
4717 using the new 'x509' options.
4719 Current auxiliary information includes an "alias" and some trust
4720 settings. The trust settings will ultimately be used in enhanced
4721 certificate chain verification routines: currently a certificate
4722 can only be trusted if it is self signed and then it is trusted
4726 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
4727 The problem was that one of the replacement routines had not been working
4728 since SSLeay releases. For now the offending routine has been replaced
4729 with non-optimised assembler. Even so, this now gives around 95%
4730 performance improvement for 1024 bit RSA signs.
4733 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
4734 handling. Most clients have the effective key size in bits equal to
4735 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
4736 A few however don't do this and instead use the size of the decrypted key
4737 to determine the RC2 key length and the AlgorithmIdentifier to determine
4738 the effective key length. In this case the effective key length can still
4739 be 40 bits but the key length can be 168 bits for example. This is fixed
4740 by manually forcing an RC2 key into the EVP_PKEY structure because the
4741 EVP code can't currently handle unusual RC2 key sizes: it always assumes
4742 the key length and effective key length are equal.
4745 *) Add a bunch of functions that should simplify the creation of
4746 X509_NAME structures. Now you should be able to do:
4747 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
4748 and have it automatically work out the correct field type and fill in
4749 the structures. The more adventurous can try:
4750 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
4751 and it will (hopefully) work out the correct multibyte encoding.
4754 *) Change the 'req' utility to use the new field handling and multibyte
4755 copy routines. Before the DN field creation was handled in an ad hoc
4756 way in req, ca, and x509 which was rather broken and didn't support
4757 BMPStrings or UTF8Strings. Since some software doesn't implement
4758 BMPStrings or UTF8Strings yet, they can be enabled using the config file
4759 using the dirstring_type option. See the new comment in the default
4760 openssl.cnf for more info.
4763 *) Make crypto/rand/md_rand.c more robust:
4764 - Assure unique random numbers after fork().
4765 - Make sure that concurrent threads access the global counter and
4766 md serializably so that we never lose entropy in them
4767 or use exactly the same state in multiple threads.
4768 Access to the large state is not always serializable because
4769 the additional locking could be a performance killer, and
4770 md should be large enough anyway.
4773 *) New file apps/app_rand.c with commonly needed functionality
4774 for handling the random seed file.
4776 Use the random seed file in some applications that previously did not:
4778 dsaparam -genkey (which also ignored its '-rand' option),
4781 x509 (when signing).
4782 Except on systems with /dev/urandom, it is crucial to have a random
4783 seed file at least for key creation, DSA signing, and for DH exchanges;
4784 for RSA signatures we could do without one.
4786 gendh and gendsa (unlike genrsa) used to read only the first byte
4787 of each file listed in the '-rand' option. The function as previously
4788 found in genrsa is now in app_rand.c and is used by all programs
4789 that support '-rand'.
4792 *) In RAND_write_file, use mode 0600 for creating files;
4793 don't just chmod when it may be too late.
4796 *) Report an error from X509_STORE_load_locations
4797 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
4800 *) New function ASN1_mbstring_copy() this copies a string in either
4801 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
4802 into an ASN1_STRING type. A mask of permissible types is passed
4803 and it chooses the "minimal" type to use or an error if not type
4807 *) Add function equivalents to the various macros in asn1.h. The old
4808 macros are retained with an M_ prefix. Code inside the library can
4809 use the M_ macros. External code (including the openssl utility)
4810 should *NOT* in order to be "shared library friendly".
4813 *) Add various functions that can check a certificate's extensions
4814 to see if it usable for various purposes such as SSL client,
4815 server or S/MIME and CAs of these types. This is currently
4816 VERY EXPERIMENTAL but will ultimately be used for certificate chain
4817 verification. Also added a -purpose flag to x509 utility to
4818 print out all the purposes.
4821 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
4825 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
4826 for, obtain and decode and extension and obtain its critical flag.
4827 This allows all the necessary extension code to be handled in a
4828 single function call.
4831 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
4832 platforms. See crypto/rc4/rc4_enc.c for further details.
4835 *) New -noout option to asn1parse. This causes no output to be produced
4836 its main use is when combined with -strparse and -out to extract data
4837 from a file (which may not be in ASN.1 format).
4840 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
4841 when producing the local key id.
4842 [Richard Levitte <levitte@stacken.kth.se>]
4844 *) New option -dhparam in s_server. This allows a DH parameter file to be
4845 stated explicitly. If it is not stated then it tries the first server
4846 certificate file. The previous behaviour hard coded the filename
4850 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
4851 a public key to be input or output. For example:
4852 openssl rsa -in key.pem -pubout -out pubkey.pem
4853 Also added necessary DSA public key functions to handle this.
4856 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
4857 in the message. This was handled by allowing
4858 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
4859 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
4861 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
4862 to the end of the strings whereas this didn't. This would cause problems
4863 if strings read with d2i_ASN1_bytes() were later modified.
4864 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
4866 *) Fix for base64 decode bug. When a base64 bio reads only one line of
4867 data and it contains EOF it will end up returning an error. This is
4868 caused by input 46 bytes long. The cause is due to the way base64
4869 BIOs find the start of base64 encoded data. They do this by trying a
4870 trial decode on each line until they find one that works. When they
4871 do a flag is set and it starts again knowing it can pass all the
4872 data directly through the decoder. Unfortunately it doesn't reset
4873 the context it uses. This means that if EOF is reached an attempt
4874 is made to pass two EOFs through the context and this causes the
4875 resulting error. This can also cause other problems as well. As is
4876 usual with these problems it takes *ages* to find and the fix is
4877 trivial: move one line.
4878 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
4880 *) Ugly workaround to get s_client and s_server working under Windows. The
4881 old code wouldn't work because it needed to select() on sockets and the
4882 tty (for keypresses and to see if data could be written). Win32 only
4883 supports select() on sockets so we select() with a 1s timeout on the
4884 sockets and then see if any characters are waiting to be read, if none
4885 are present then we retry, we also assume we can always write data to
4886 the tty. This isn't nice because the code then blocks until we've
4887 received a complete line of data and it is effectively polling the
4888 keyboard at 1s intervals: however it's quite a bit better than not
4889 working at all :-) A dedicated Windows application might handle this
4890 with an event loop for example.
4893 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
4894 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
4895 will be called when RSA_sign() and RSA_verify() are used. This is useful
4896 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
4897 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
4898 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
4899 This necessitated the support of an extra signature type NID_md5_sha1
4900 for SSL signatures and modifications to the SSL library to use it instead
4901 of calling RSA_public_decrypt() and RSA_private_encrypt().
4904 *) Add new -verify -CAfile and -CApath options to the crl program, these
4905 will lookup a CRL issuers certificate and verify the signature in a
4906 similar way to the verify program. Tidy up the crl program so it
4907 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
4908 less strict. It will now permit CRL extensions even if it is not
4909 a V2 CRL: this will allow it to tolerate some broken CRLs.
4912 *) Initialize all non-automatic variables each time one of the openssl
4913 sub-programs is started (this is necessary as they may be started
4914 multiple times from the "OpenSSL>" prompt).
4915 [Lennart Bang, Bodo Moeller]
4917 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
4918 removing all other RSA functionality (this is what NO_RSA does). This
4919 is so (for example) those in the US can disable those operations covered
4920 by the RSA patent while allowing storage and parsing of RSA keys and RSA
4924 *) Non-copying interface to BIO pairs.
4925 (still largely untested)
4928 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
4929 ASCII string. This was handled independently in various places before.
4932 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
4933 UTF8 strings a character at a time.
4936 *) Use client_version from client hello to select the protocol
4937 (s23_srvr.c) and for RSA client key exchange verification
4938 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
4941 *) Add various utility functions to handle SPKACs, these were previously
4942 handled by poking round in the structure internals. Added new function
4943 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
4944 print, verify and generate SPKACs. Based on an original idea from
4945 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
4948 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
4951 *) Allow the config file extension section to be overwritten on the
4952 command line. Based on an original idea from Massimiliano Pala
4953 <madwolf@comune.modena.it>. The new option is called -extensions
4954 and can be applied to ca, req and x509. Also -reqexts to override
4955 the request extensions in req and -crlexts to override the crl extensions
4959 *) Add new feature to the SPKAC handling in ca. Now you can include
4960 the same field multiple times by preceding it by "XXXX." for example:
4963 this is the same syntax as used in the req config file.
4966 *) Allow certificate extensions to be added to certificate requests. These
4967 are specified in a 'req_extensions' option of the req section of the
4968 config file. They can be printed out with the -text option to req but
4969 are otherwise ignored at present.
4972 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
4973 data read consists of only the final block it would not decrypted because
4974 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
4975 A misplaced 'break' also meant the decrypted final block might not be
4976 copied until the next read.
4979 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
4980 a few extra parameters to the DH structure: these will be useful if
4981 for example we want the value of 'q' or implement X9.42 DH.
4984 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
4985 provides hooks that allow the default DSA functions or functions on a
4986 "per key" basis to be replaced. This allows hardware acceleration and
4987 hardware key storage to be handled without major modification to the
4988 library. Also added low level modexp hooks and CRYPTO_EX structure and
4989 associated functions.
4992 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
4993 as "read only": it can't be written to and the buffer it points to will
4994 not be freed. Reading from a read only BIO is much more efficient than
4995 a normal memory BIO. This was added because there are several times when
4996 an area of memory needs to be read from a BIO. The previous method was
4997 to create a memory BIO and write the data to it, this results in two
4998 copies of the data and an O(n^2) reading algorithm. There is a new
4999 function BIO_new_mem_buf() which creates a read only memory BIO from
5000 an area of memory. Also modified the PKCS#7 routines to use read only
5004 *) Bugfix: ssl23_get_client_hello did not work properly when called in
5005 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
5006 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
5007 but a retry condition occured while trying to read the rest.
5010 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
5011 NID_pkcs7_encrypted by default: this was wrong since this should almost
5012 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
5013 the encrypted data type: this is a more sensible place to put it and it
5014 allows the PKCS#12 code to be tidied up that duplicated this
5018 *) Changed obj_dat.pl script so it takes its input and output files on
5019 the command line. This should avoid shell escape redirection problems
5023 *) Initial support for certificate extension requests, these are included
5024 in things like Xenroll certificate requests. Included functions to allow
5025 extensions to be obtained and added.
5028 *) -crlf option to s_client and s_server for sending newlines as
5029 CRLF (as required by many protocols).
5032 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
5034 *) Install libRSAglue.a when OpenSSL is built with RSAref.
5035 [Ralf S. Engelschall]
5037 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
5038 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
5040 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
5044 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
5045 DH parameters/keys (q is lost during that conversion, but the resulting
5046 DH parameters contain its length).
5048 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
5049 much faster than DH_generate_parameters (which creates parameters
5050 where p = 2*q + 1), and also the smaller q makes DH computations
5051 much more efficient (160-bit exponentiation instead of 1024-bit
5052 exponentiation); so this provides a convenient way to support DHE
5053 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
5054 utter importance to use
5055 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
5057 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
5058 when such DH parameters are used, because otherwise small subgroup
5059 attacks may become possible!
5062 *) Avoid memory leak in i2d_DHparams.
5065 *) Allow the -k option to be used more than once in the enc program:
5066 this allows the same encrypted message to be read by multiple recipients.
5069 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
5070 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
5071 it will always use the numerical form of the OID, even if it has a short
5075 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
5076 method only got called if p,q,dmp1,dmq1,iqmp components were present,
5077 otherwise bn_mod_exp was called. In the case of hardware keys for example
5078 no private key components need be present and it might store extra data
5079 in the RSA structure, which cannot be accessed from bn_mod_exp.
5080 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
5081 private key operations.
5084 *) Added support for SPARC Linux.
5087 *) pem_password_cb function type incompatibly changed from
5088 typedef int pem_password_cb(char *buf, int size, int rwflag);
5090 ....(char *buf, int size, int rwflag, void *userdata);
5091 so that applications can pass data to their callbacks:
5092 The PEM[_ASN1]_{read,write}... functions and macros now take an
5093 additional void * argument, which is just handed through whenever
5094 the password callback is called.
5095 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
5097 New function SSL_CTX_set_default_passwd_cb_userdata.
5099 Compatibility note: As many C implementations push function arguments
5100 onto the stack in reverse order, the new library version is likely to
5101 interoperate with programs that have been compiled with the old
5102 pem_password_cb definition (PEM_whatever takes some data that
5103 happens to be on the stack as its last argument, and the callback
5104 just ignores this garbage); but there is no guarantee whatsoever that
5107 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
5108 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
5109 problems not only on Windows, but also on some Unix platforms.
5110 To avoid problematic command lines, these definitions are now in an
5111 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
5112 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
5115 *) MIPS III/IV assembler module is reimplemented.
5118 *) More DES library cleanups: remove references to srand/rand and
5119 delete an unused file.
5122 *) Add support for the the free Netwide assembler (NASM) under Win32,
5123 since not many people have MASM (ml) and it can be hard to obtain.
5124 This is currently experimental but it seems to work OK and pass all
5125 the tests. Check out INSTALL.W32 for info.
5128 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
5129 without temporary keys kept an extra copy of the server key,
5130 and connections with temporary keys did not free everything in case
5134 *) New function RSA_check_key and new openssl rsa option -check
5135 for verifying the consistency of RSA keys.
5136 [Ulf Moeller, Bodo Moeller]
5138 *) Various changes to make Win32 compile work:
5139 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
5140 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
5141 comparison" warnings.
5142 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
5145 *) Add a debugging option to PKCS#5 v2 key generation function: when
5146 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
5147 derived keys are printed to stderr.
5150 *) Copy the flags in ASN1_STRING_dup().
5151 [Roman E. Pavlov <pre@mo.msk.ru>]
5153 *) The x509 application mishandled signing requests containing DSA
5154 keys when the signing key was also DSA and the parameters didn't match.
5156 It was supposed to omit the parameters when they matched the signing key:
5157 the verifying software was then supposed to automatically use the CA's
5158 parameters if they were absent from the end user certificate.
5160 Omitting parameters is no longer recommended. The test was also
5161 the wrong way round! This was probably due to unusual behaviour in
5162 EVP_cmp_parameters() which returns 1 if the parameters match.
5163 This meant that parameters were omitted when they *didn't* match and
5164 the certificate was useless. Certificates signed with 'ca' didn't have
5166 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
5168 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
5169 The interface is as follows:
5170 Applications can use
5171 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
5172 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
5173 "off" is now the default.
5174 The library internally uses
5175 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
5176 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
5177 to disable memory-checking temporarily.
5179 Some inconsistent states that previously were possible (and were
5180 even the default) are now avoided.
5182 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
5183 with each memory chunk allocated; this is occasionally more helpful
5184 than just having a counter.
5186 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
5188 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
5192 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
5193 which largely parallels "options", but is for changing API behaviour,
5194 whereas "options" are about protocol behaviour.
5195 Initial "mode" flags are:
5197 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
5198 a single record has been written.
5199 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
5200 retries use the same buffer location.
5201 (But all of the contents must be
5205 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
5208 *) Fix problems with no-hmac etc.
5209 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
5211 *) New functions RSA_get_default_method(), RSA_set_method() and
5212 RSA_get_method(). These allows replacement of RSA_METHODs without having
5213 to mess around with the internals of an RSA structure.
5216 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
5217 Also really enable memory leak checks in openssl.c and in some
5219 [Chad C. Mulligan, Bodo Moeller]
5221 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
5222 up the length of negative integers. This has now been simplified to just
5223 store the length when it is first determined and use it later, rather
5224 than trying to keep track of where data is copied and updating it to
5226 [Steve Henson, reported by Brien Wheeler
5227 <bwheeler@authentica-security.com>]
5229 *) Add a new function PKCS7_signatureVerify. This allows the verification
5230 of a PKCS#7 signature but with the signing certificate passed to the
5231 function itself. This contrasts with PKCS7_dataVerify which assumes the
5232 certificate is present in the PKCS#7 structure. This isn't always the
5233 case: certificates can be omitted from a PKCS#7 structure and be
5234 distributed by "out of band" means (such as a certificate database).
5237 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
5238 function prototypes in pem.h, also change util/mkdef.pl to add the
5239 necessary function names.
5242 *) mk1mf.pl (used by Windows builds) did not properly read the
5243 options set by Configure in the top level Makefile, and Configure
5244 was not even able to write more than one option correctly.
5245 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
5248 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
5249 file to be loaded from a BIO or FILE pointer. The BIO version will
5250 for example allow memory BIOs to contain config info.
5253 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
5254 Whoever hopes to achieve shared-library compatibility across versions
5255 must use this, not the compile-time macro.
5256 (Exercise 0.9.4: Which is the minimum library version required by
5258 Note: All this applies only to multi-threaded programs, others don't
5262 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
5263 through a BIO pair triggered the default case, i.e.
5264 SSLerr(...,SSL_R_UNKNOWN_STATE).
5267 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
5268 can use the SSL library even if none of the specific BIOs is
5272 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
5273 for the encoded length.
5274 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
5276 *) Add initial documentation of the X509V3 functions.
5279 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
5280 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
5281 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
5282 secure PKCS#8 private key format with a high iteration count.
5285 *) Fix determination of Perl interpreter: A perl or perl5
5286 _directory_ in $PATH was also accepted as the interpreter.
5287 [Ralf S. Engelschall]
5289 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
5290 wrong with it but it was very old and did things like calling
5291 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
5295 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
5296 to use the new extension code.
5299 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
5300 with macros. This should make it easier to change their form, add extra
5301 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
5305 *) Add to configuration table a new entry that can specify an alternative
5306 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
5307 according to Mark Crispin <MRC@Panda.COM>.
5311 *) DES CBC did not update the IV. Weird.
5314 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
5315 Changing the behaviour of the former might break existing programs --
5316 where IV updating is needed, des_ncbc_encrypt can be used.
5319 *) When bntest is run from "make test" it drives bc to check its
5320 calculations, as well as internally checking them. If an internal check
5321 fails, it needs to cause bc to give a non-zero result or make test carries
5322 on without noticing the failure. Fixed.
5325 *) DES library cleanups.
5328 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
5329 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
5330 ciphers. NOTE: although the key derivation function has been verified
5331 against some published test vectors it has not been extensively tested
5332 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
5336 *) Instead of "mkdir -p", which is not fully portable, use new
5337 Perl script "util/mkdir-p.pl".
5340 *) Rewrite the way password based encryption (PBE) is handled. It used to
5341 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
5342 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
5343 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
5344 the 'parameter' field of the AlgorithmIdentifier is passed to the
5345 underlying key generation function so it must do its own ASN1 parsing.
5346 This has also changed the EVP_PBE_CipherInit() function which now has a
5347 'parameter' argument instead of literal salt and iteration count values
5348 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
5351 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
5352 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
5353 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
5354 KEY" because this clashed with PKCS#8 unencrypted string. Since this
5355 value was just used as a "magic string" and not used directly its
5356 value doesn't matter.
5359 *) Introduce some semblance of const correctness to BN. Shame C doesn't
5363 *) "linux-sparc64" configuration (ultrapenguin).
5364 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
5365 "linux-sparc" configuration.
5366 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
5368 *) config now generates no-xxx options for missing ciphers.
5371 *) Support the EBCDIC character set (work in progress).
5372 File ebcdic.c not yet included because it has a different license.
5373 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
5375 *) Support BS2000/OSD-POSIX.
5376 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
5378 *) Make callbacks for key generation use void * instead of char *.
5381 *) Make S/MIME samples compile (not yet tested).
5384 *) Additional typesafe stacks.
5387 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
5391 Changes between 0.9.3 and 0.9.3a [29 May 1999]
5393 *) New configuration variant "sco5-gcc".
5395 *) Updated some demos.
5396 [Sean O Riordain, Wade Scholine]
5398 *) Add missing BIO_free at exit of pkcs12 application.
5401 *) Fix memory leak in conf.c.
5404 *) Updates for Win32 to assembler version of MD5.
5407 *) Set #! path to perl in apps/der_chop to where we found it
5408 instead of using a fixed path.
5411 *) SHA library changes for irix64-mips4-cc.
5414 *) Improvements for VMS support.
5418 Changes between 0.9.2b and 0.9.3 [24 May 1999]
5420 *) Bignum library bug fix. IRIX 6 passes "make test" now!
5421 This also avoids the problems with SC4.2 and unpatched SC5.
5422 [Andy Polyakov <appro@fy.chalmers.se>]
5424 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
5425 These are required because of the typesafe stack would otherwise break
5426 existing code. If old code used a structure member which used to be STACK
5427 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
5428 sk_num or sk_value it would produce an error because the num, data members
5429 are not present in STACK_OF. Now it just produces a warning. sk_set
5430 replaces the old method of assigning a value to sk_value
5431 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
5432 that does this will no longer work (and should use sk_set instead) but
5433 this could be regarded as a "questionable" behaviour anyway.
5436 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
5437 correctly handle encrypted S/MIME data.
5440 *) Change type of various DES function arguments from des_cblock
5441 (which means, in function argument declarations, pointer to char)
5442 to des_cblock * (meaning pointer to array with 8 char elements),
5443 which allows the compiler to do more typechecking; it was like
5444 that back in SSLeay, but with lots of ugly casts.
5446 Introduce new type const_des_cblock.
5449 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
5450 problems: find RecipientInfo structure that matches recipient certificate
5451 and initialise the ASN1 structures properly based on passed cipher.
5454 *) Belatedly make the BN tests actually check the results.
5457 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
5458 to and from BNs: it was completely broken. New compilation option
5459 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
5460 key elements as negative integers.
5463 *) Reorganize and speed up MD5.
5464 [Andy Polyakov <appro@fy.chalmers.se>]
5467 [Richard Levitte <richard@levitte.org>]
5469 *) New option -out to asn1parse to allow the parsed structure to be
5470 output to a file. This is most useful when combined with the -strparse
5471 option to examine the output of things like OCTET STRINGS.
5474 *) Make SSL library a little more fool-proof by not requiring any longer
5475 that SSL_set_{accept,connect}_state be called before
5476 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
5477 in many applications because usually everything *appeared* to work as
5478 intended anyway -- now it really works as intended).
5481 *) Move openssl.cnf out of lib/.
5484 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
5485 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
5486 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
5487 [Ralf S. Engelschall]
5489 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
5490 handle PKCS#7 enveloped data properly.
5491 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
5493 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
5494 copying pointers. The cert_st handling is changed by this in
5495 various ways (and thus what used to be known as ctx->default_cert
5496 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
5497 any longer when s->cert does not give us what we need).
5498 ssl_cert_instantiate becomes obsolete by this change.
5499 As soon as we've got the new code right (possibly it already is?),
5500 we have solved a couple of bugs of the earlier code where s->cert
5501 was used as if it could not have been shared with other SSL structures.
5503 Note that using the SSL API in certain dirty ways now will result
5504 in different behaviour than observed with earlier library versions:
5505 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
5506 does not influence s as it used to.
5508 In order to clean up things more thoroughly, inside SSL_SESSION
5509 we don't use CERT any longer, but a new structure SESS_CERT
5510 that holds per-session data (if available); currently, this is
5511 the peer's certificate chain and, for clients, the server's certificate
5512 and temporary key. CERT holds only those values that can have
5513 meaningful defaults in an SSL_CTX.
5516 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
5517 from the internal representation. Various PKCS#7 fixes: remove some
5518 evil casts and set the enc_dig_alg field properly based on the signing
5522 *) Allow PKCS#12 password to be set from the command line or the
5523 environment. Let 'ca' get its config file name from the environment
5524 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
5528 *) Allow certificate policies extension to use an IA5STRING for the
5529 organization field. This is contrary to the PKIX definition but
5530 VeriSign uses it and IE5 only recognises this form. Document 'x509'
5534 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
5535 without disallowing inline assembler and the like for non-pedantic builds.
5538 *) Support Borland C++ builder.
5539 [Janez Jere <jj@void.si>, modified by Ulf Möller]
5544 *) SHA-1 cleanups and performance enhancements.
5545 [Andy Polyakov <appro@fy.chalmers.se>]
5547 *) Sparc v8plus assembler for the bignum library.
5548 [Andy Polyakov <appro@fy.chalmers.se>]
5550 *) Accept any -xxx and +xxx compiler options in Configure.
5553 *) Update HPUX configuration.
5556 *) Add missing sk_<type>_unshift() function to safestack.h
5557 [Ralf S. Engelschall]
5559 *) New function SSL_CTX_use_certificate_chain_file that sets the
5560 "extra_cert"s in addition to the certificate. (This makes sense
5561 only for "PEM" format files, as chains as a whole are not
5565 *) Support verify_depth from the SSL API.
5566 x509_vfy.c had what can be considered an off-by-one-error:
5567 Its depth (which was not part of the external interface)
5568 was actually counting the number of certificates in a chain;
5569 now it really counts the depth.
5572 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
5573 instead of X509err, which often resulted in confusing error
5574 messages since the error codes are not globally unique
5575 (e.g. an alleged error in ssl3_accept when a certificate
5576 didn't match the private key).
5578 *) New function SSL_CTX_set_session_id_context that allows to set a default
5579 value (so that you don't need SSL_set_session_id_context for each
5580 connection using the SSL_CTX).
5583 *) OAEP decoding bug fix.
5586 *) Support INSTALL_PREFIX for package builders, as proposed by
5590 *) New Configure options "threads" and "no-threads". For systems
5591 where the proper compiler options are known (currently Solaris
5592 and Linux), "threads" is the default.
5595 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
5598 *) Install various scripts to $(OPENSSLDIR)/misc, not to
5599 $(INSTALLTOP)/bin -- they shouldn't clutter directories
5600 such as /usr/local/bin.
5603 *) "make linux-shared" to build shared libraries.
5604 [Niels Poppe <niels@netbox.org>]
5606 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
5609 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
5610 extension adding in x509 utility.
5613 *) Remove NOPROTO sections and error code comments.
5616 *) Partial rewrite of the DEF file generator to now parse the ANSI
5620 *) New Configure options --prefix=DIR and --openssldir=DIR.
5623 *) Complete rewrite of the error code script(s). It is all now handled
5624 by one script at the top level which handles error code gathering,
5625 header rewriting and C source file generation. It should be much better
5626 than the old method: it now uses a modified version of Ulf's parser to
5627 read the ANSI prototypes in all header files (thus the old K&R definitions
5628 aren't needed for error creation any more) and do a better job of
5629 translating function codes into names. The old 'ASN1 error code imbedded
5630 in a comment' is no longer necessary and it doesn't use .err files which
5631 have now been deleted. Also the error code call doesn't have to appear all
5632 on one line (which resulted in some large lines...).
5635 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
5638 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
5639 0 (which usually indicates a closed connection), but continue reading.
5642 *) Fix some race conditions.
5645 *) Add support for CRL distribution points extension. Add Certificate
5646 Policies and CRL distribution points documentation.
5649 *) Move the autogenerated header file parts to crypto/opensslconf.h.
5652 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
5653 8 of keying material. Merlin has also confirmed interop with this fix
5654 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
5655 [Merlin Hughes <merlin@baltimore.ie>]
5657 *) Fix lots of warnings.
5658 [Richard Levitte <levitte@stacken.kth.se>]
5660 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
5661 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
5662 [Richard Levitte <levitte@stacken.kth.se>]
5664 *) Fix problems with sizeof(long) == 8.
5665 [Andy Polyakov <appro@fy.chalmers.se>]
5667 *) Change functions to ANSI C.
5670 *) Fix typos in error codes.
5671 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
5673 *) Remove defunct assembler files from Configure.
5676 *) SPARC v8 assembler BIGNUM implementation.
5677 [Andy Polyakov <appro@fy.chalmers.se>]
5679 *) Support for Certificate Policies extension: both print and set.
5680 Various additions to support the r2i method this uses.
5683 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
5684 return a const string when you are expecting an allocated buffer.
5687 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
5688 types DirectoryString and DisplayText.
5691 *) Add code to allow r2i extensions to access the configuration database,
5692 add an LHASH database driver and add several ctx helper functions.
5695 *) Fix an evil bug in bn_expand2() which caused various BN functions to
5696 fail when they extended the size of a BIGNUM.
5699 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
5700 support typesafe stack.
5703 *) Fix typo in SSL_[gs]et_options().
5704 [Nils Frostberg <nils@medcom.se>]
5706 *) Delete various functions and files that belonged to the (now obsolete)
5707 old X509V3 handling code.
5710 *) New Configure option "rsaref".
5713 *) Don't auto-generate pem.h.
5716 *) Introduce type-safe ASN.1 SETs.
5719 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
5720 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
5722 *) Introduce type-safe STACKs. This will almost certainly break lots of code
5723 that links with OpenSSL (well at least cause lots of warnings), but fear
5724 not: the conversion is trivial, and it eliminates loads of evil casts. A
5725 few STACKed things have been converted already. Feel free to convert more.
5726 In the fullness of time, I'll do away with the STACK type altogether.
5729 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
5730 specified in <certfile> by updating the entry in the index.txt file.
5731 This way one no longer has to edit the index.txt file manually for
5732 revoking a certificate. The -revoke option does the gory details now.
5733 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
5735 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
5736 `-text' option at all and this way the `-noout -text' combination was
5737 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
5738 [Ralf S. Engelschall]
5740 *) Make sure a corresponding plain text error message exists for the
5741 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
5742 verify callback function determined that a certificate was revoked.
5743 [Ralf S. Engelschall]
5745 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
5746 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
5747 all available cipers including rc5, which was forgotten until now.
5748 In order to let the testing shell script know which algorithms
5749 are available, a new (up to now undocumented) command
5750 "openssl list-cipher-commands" is used.
5753 *) Bugfix: s_client occasionally would sleep in select() when
5754 it should have checked SSL_pending() first.
5757 *) New functions DSA_do_sign and DSA_do_verify to provide access to
5758 the raw DSA values prior to ASN.1 encoding.
5761 *) Tweaks to Configure
5762 [Niels Poppe <niels@netbox.org>]
5764 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
5768 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
5771 *) New config option to avoid instructions that are illegal on the 80386.
5772 The default code is faster, but requires at least a 486.
5775 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
5776 SSL2_SERVER_VERSION (not used at all) macros, which are now the
5777 same as SSL2_VERSION anyway.
5780 *) New "-showcerts" option for s_client.
5783 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
5784 application. Various cleanups and fixes.
5787 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
5788 modify error routines to work internally. Add error codes and PBE init
5789 to library startup routines.
5792 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
5793 packing functions to asn1 and evp. Changed function names and error
5794 codes along the way.
5797 *) PKCS12 integration: and so it begins... First of several patches to
5798 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
5799 objects to objects.h
5802 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
5803 and display support for Thawte strong extranet extension.
5806 *) Add LinuxPPC support.
5807 [Jeff Dubrule <igor@pobox.org>]
5809 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
5810 bn_div_words in alpha.s.
5811 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
5813 *) Make sure the RSA OAEP test is skipped under -DRSAref because
5814 OAEP isn't supported when OpenSSL is built with RSAref.
5815 [Ulf Moeller <ulf@fitug.de>]
5817 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
5818 so they no longer are missing under -DNOPROTO.
5819 [Soren S. Jorvang <soren@t.dk>]
5822 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
5824 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
5825 doesn't work when the session is reused. Coming soon!
5828 *) Fix a security hole, that allows sessions to be reused in the wrong
5829 context thus bypassing client cert protection! All software that uses
5830 client certs and session caches in multiple contexts NEEDS PATCHING to
5831 allow session reuse! A fuller solution is in the works.
5832 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
5834 *) Some more source tree cleanups (removed obsolete files
5835 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
5836 permission on "config" script to be executable) and a fix for the INSTALL
5838 [Ulf Moeller <ulf@fitug.de>]
5840 *) Remove some legacy and erroneous uses of malloc, free instead of
5842 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
5844 *) Make rsa_oaep_test return non-zero on error.
5845 [Ulf Moeller <ulf@fitug.de>]
5847 *) Add support for native Solaris shared libraries. Configure
5848 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
5849 if someone would make that last step automatic.
5850 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
5852 *) ctx_size was not built with the right compiler during "make links". Fixed.
5855 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
5856 except NULL ciphers". This means the default cipher list will no longer
5857 enable NULL ciphers. They need to be specifically enabled e.g. with
5858 the string "DEFAULT:eNULL".
5861 *) Fix to RSA private encryption routines: if p < q then it would
5862 occasionally produce an invalid result. This will only happen with
5863 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
5866 *) Be less restrictive and allow also `perl util/perlpath.pl
5867 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
5868 because this way one can also use an interpreter named `perl5' (which is
5869 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
5870 installed as `perl').
5871 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
5873 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
5874 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
5876 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
5877 advapi32.lib to Win32 build and change the pem test comparision
5878 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
5879 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
5880 and crypto/des/ede_cbcm_enc.c.
5883 *) DES quad checksum was broken on big-endian architectures. Fixed.
5886 *) Comment out two functions in bio.h that aren't implemented. Fix up the
5887 Win32 test batch file so it (might) work again. The Win32 test batch file
5888 is horrible: I feel ill....
5891 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
5892 in e_os.h. Audit of header files to check ANSI and non ANSI
5893 sections: 10 functions were absent from non ANSI section and not exported
5894 from Windows DLLs. Fixed up libeay.num for new functions.
5897 *) Make `openssl version' output lines consistent.
5898 [Ralf S. Engelschall]
5900 *) Fix Win32 symbol export lists for BIO functions: Added
5901 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
5902 to ms/libeay{16,32}.def.
5903 [Ralf S. Engelschall]
5905 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
5906 fine under Unix and passes some trivial tests I've now added. But the
5907 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
5908 added to make sure no one expects that this stuff really works in the
5909 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
5910 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
5912 [Ralf S. Engelschall]
5914 *) Fix the generation of two part addresses in perl.
5915 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
5917 *) Add config entry for Linux on MIPS.
5918 [John Tobey <jtobey@channel1.com>]
5920 *) Make links whenever Configure is run, unless we are on Windoze.
5923 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
5924 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
5928 *) Add a useful kludge to allow package maintainers to specify compiler and
5929 other platforms details on the command line without having to patch the
5930 Configure script everytime: One now can use ``perl Configure
5931 <id>:<details>'', i.e. platform ids are allowed to have details appended
5932 to them (seperated by colons). This is treated as there would be a static
5933 pre-configured entry in Configure's %table under key <id> with value
5934 <details> and ``perl Configure <id>'' is called. So, when you want to
5935 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
5936 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
5937 now, which overrides the FreeBSD-elf entry on-the-fly.
5938 [Ralf S. Engelschall]
5940 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
5943 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
5944 on the `perl Configure ...' command line. This way one can compile
5945 OpenSSL libraries with Position Independent Code (PIC) which is needed
5946 for linking it into DSOs.
5947 [Ralf S. Engelschall]
5949 *) Remarkably, export ciphers were totally broken and no-one had noticed!
5953 *) Cleaned up the LICENSE document: The official contact for any license
5954 questions now is the OpenSSL core team under openssl-core@openssl.org.
5955 And add a paragraph about the dual-license situation to make sure people
5956 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
5957 to the OpenSSL toolkit.
5958 [Ralf S. Engelschall]
5960 *) General source tree makefile cleanups: Made `making xxx in yyy...'
5961 display consistent in the source tree and replaced `/bin/rm' by `rm'.
5962 Additonally cleaned up the `make links' target: Remove unnecessary
5963 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
5964 to speed processing and no longer clutter the display with confusing
5965 stuff. Instead only the actually done links are displayed.
5966 [Ralf S. Engelschall]
5968 *) Permit null encryption ciphersuites, used for authentication only. It used
5969 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
5970 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
5974 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
5975 signed attributes when verifying signatures (this would break them),
5976 the detached data encoding was wrong and public keys obtained using
5977 X509_get_pubkey() weren't freed.
5980 *) Add text documentation for the BUFFER functions. Also added a work around
5981 to a Win95 console bug. This was triggered by the password read stuff: the
5982 last character typed gets carried over to the next fread(). If you were
5983 generating a new cert request using 'req' for example then the last
5984 character of the passphrase would be CR which would then enter the first
5988 *) Added the new `Includes OpenSSL Cryptography Software' button as
5989 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
5990 button and can be used by applications based on OpenSSL to show the
5991 relationship to the OpenSSL project.
5992 [Ralf S. Engelschall]
5994 *) Remove confusing variables in function signatures in files
5995 ssl/ssl_lib.c and ssl/ssl.h.
5996 [Lennart Bong <lob@kulthea.stacken.kth.se>]
5998 *) Don't install bss_file.c under PREFIX/include/
5999 [Lennart Bong <lob@kulthea.stacken.kth.se>]
6001 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
6002 functions that return function pointers and has support for NT specific
6003 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
6004 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
6005 unsigned to signed types: this was killing the Win32 compile.
6008 *) Add new certificate file to stack functions,
6009 SSL_add_dir_cert_subjects_to_stack() and
6010 SSL_add_file_cert_subjects_to_stack(). These largely supplant
6011 SSL_load_client_CA_file(), and can be used to add multiple certs easily
6012 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
6013 This means that Apache-SSL and similar packages don't have to mess around
6014 to add as many CAs as they want to the preferred list.
6017 *) Experiment with doxygen documentation. Currently only partially applied to
6019 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
6020 openssl.doxy as the configuration file.
6023 *) Get rid of remaining C++-style comments which strict C compilers hate.
6024 [Ralf S. Engelschall, pointed out by Carlos Amengual]
6026 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
6027 compiled in by default: it has problems with large keys.
6030 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
6031 DH private keys and/or callback functions which directly correspond to
6032 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
6033 is needed for applications which have to configure certificates on a
6034 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
6036 For the RSA certificate situation is makes no difference, but
6037 for the DSA certificate situation this fixes the "no shared cipher"
6038 problem where the OpenSSL cipher selection procedure failed because the
6039 temporary keys were not overtaken from the context and the API provided
6040 no way to reconfigure them.
6041 The new functions now let applications reconfigure the stuff and they
6042 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
6043 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
6044 non-public-API function ssl_cert_instantiate() is used as a helper
6045 function and also to reduce code redundancy inside ssl_rsa.c.
6046 [Ralf S. Engelschall]
6048 *) Move s_server -dcert and -dkey options out of the undocumented feature
6049 area because they are useful for the DSA situation and should be
6050 recognized by the users.
6051 [Ralf S. Engelschall]
6053 *) Fix the cipher decision scheme for export ciphers: the export bits are
6054 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
6055 SSL_EXP_MASK. So, the original variable has to be used instead of the
6056 already masked variable.
6057 [Richard Levitte <levitte@stacken.kth.se>]
6059 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
6060 [Richard Levitte <levitte@stacken.kth.se>]
6062 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
6063 from `int' to `unsigned int' because it's a length and initialized by
6064 EVP_DigestFinal() which expects an `unsigned int *'.
6065 [Richard Levitte <levitte@stacken.kth.se>]
6067 *) Don't hard-code path to Perl interpreter on shebang line of Configure
6068 script. Instead use the usual Shell->Perl transition trick.
6069 [Ralf S. Engelschall]
6071 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
6072 (in addition to RSA certificates) to match the behaviour of `openssl dsa
6073 -noout -modulus' as it's already the case for `openssl rsa -noout
6074 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
6075 currently the public key is printed (a decision which was already done by
6076 `openssl dsa -modulus' in the past) which serves a similar purpose.
6077 Additionally the NO_RSA no longer completely removes the whole -modulus
6078 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
6080 [Ralf S. Engelschall]
6082 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
6083 BIO. See the source (crypto/evp/bio_ok.c) for more info.
6084 [Arne Ansper <arne@ats.cyber.ee>]
6086 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
6087 to be added. Now both 'req' and 'ca' can use new objects defined in the
6091 *) Add cool BIO that does syslog (or event log on NT).
6092 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
6094 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
6095 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
6096 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
6097 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
6100 *) Add preliminary config info for new extension code.
6103 *) Make RSA_NO_PADDING really use no padding.
6104 [Ulf Moeller <ulf@fitug.de>]
6106 *) Generate errors when private/public key check is done.
6109 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
6110 for some CRL extensions and new objects added.
6113 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
6114 key usage extension and fuller support for authority key id.
6117 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
6118 padding method for RSA, which is recommended for new applications in PKCS
6119 #1 v2.0 (RFC 2437, October 1998).
6120 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
6121 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
6122 against Bleichbacher's attack on RSA.
6123 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
6126 *) Updates to the new SSL compression code
6127 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
6129 *) Fix so that the version number in the master secret, when passed
6130 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
6131 (because the server will not accept higher), that the version number
6132 is 0x03,0x01, not 0x03,0x00
6133 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
6135 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
6136 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
6137 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
6140 *) Support for RAW extensions where an arbitrary extension can be
6141 created by including its DER encoding. See apps/openssl.cnf for
6145 *) Make sure latest Perl versions don't interpret some generated C array
6146 code as Perl array code in the crypto/err/err_genc.pl script.
6147 [Lars Weber <3weber@informatik.uni-hamburg.de>]
6149 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
6150 not many people have the assembler. Various Win32 compilation fixes and
6151 update to the INSTALL.W32 file with (hopefully) more accurate Win32
6155 *) Modify configure script 'Configure' to automatically create crypto/date.h
6156 file under Win32 and also build pem.h from pem.org. New script
6157 util/mkfiles.pl to create the MINFO file on environments that can't do a
6158 'make files': perl util/mkfiles.pl >MINFO should work.
6161 *) Major rework of DES function declarations, in the pursuit of correctness
6162 and purity. As a result, many evil casts evaporated, and some weirdness,
6163 too. You may find this causes warnings in your code. Zapping your evil
6164 casts will probably fix them. Mostly.
6167 *) Fix for a typo in asn1.h. Bug fix to object creation script
6168 obj_dat.pl. It considered a zero in an object definition to mean
6169 "end of object": none of the objects in objects.h have any zeros
6170 so it wasn't spotted.
6171 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
6173 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
6174 Masking (CBCM). In the absence of test vectors, the best I have been able
6175 to do is check that the decrypt undoes the encrypt, so far. Send me test
6176 vectors if you have them.
6179 *) Correct calculation of key length for export ciphers (too much space was
6180 allocated for null ciphers). This has not been tested!
6183 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
6184 message is now correct (it understands "crypto" and "ssl" on its
6185 command line). There is also now an "update" option. This will update
6186 the util/ssleay.num and util/libeay.num files with any new functions.
6188 perl util/mkdef.pl crypto ssl update
6189 it will update them.
6192 *) Overhauled the Perl interface (perl/*):
6193 - ported BN stuff to OpenSSL's different BN library
6194 - made the perl/ source tree CVS-aware
6195 - renamed the package from SSLeay to OpenSSL (the files still contain
6196 their history because I've copied them in the repository)
6197 - removed obsolete files (the test scripts will be replaced
6198 by better Test::Harness variants in the future)
6199 [Ralf S. Engelschall]
6201 *) First cut for a very conservative source tree cleanup:
6202 1. merge various obsolete readme texts into doc/ssleay.txt
6203 where we collect the old documents and readme texts.
6204 2. remove the first part of files where I'm already sure that we no
6205 longer need them because of three reasons: either they are just temporary
6206 files which were left by Eric or they are preserved original files where
6207 I've verified that the diff is also available in the CVS via "cvs diff
6208 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
6209 the crypto/md/ stuff).
6210 [Ralf S. Engelschall]
6212 *) More extension code. Incomplete support for subject and issuer alt
6213 name, issuer and authority key id. Change the i2v function parameters
6214 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
6215 what that's for :-) Fix to ASN1 macro which messed up
6216 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
6219 *) Preliminary support for ENUMERATED type. This is largely copied from the
6223 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
6224 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
6226 *) Make sure `make rehash' target really finds the `openssl' program.
6227 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
6229 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
6230 like to hear about it if this slows down other processors.
6233 *) Add CygWin32 platform information to Configure script.
6234 [Alan Batie <batie@aahz.jf.intel.com>]
6236 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
6237 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
6239 *) New program nseq to manipulate netscape certificate sequences
6242 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
6246 *) Fixes to BN code. Previously the default was to define BN_RECURSION
6247 but the BN code had some problems that would cause failures when
6248 doing certificate verification and some other functions.
6249 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
6251 *) Add ASN1 and PEM code to support netscape certificate sequences.
6254 *) Add ASN1 and PEM code to support netscape certificate sequences.
6257 *) Add several PKIX and private extended key usage OIDs.
6260 *) Modify the 'ca' program to handle the new extension code. Modify
6261 openssl.cnf for new extension format, add comments.
6264 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
6265 and add a sample to openssl.cnf so req -x509 now adds appropriate
6269 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
6270 error code, add initial support to X509_print() and x509 application.
6273 *) Takes a deep breath and start addding X509 V3 extension support code. Add
6274 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
6275 stuff is currently isolated and isn't even compiled yet.
6278 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
6279 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
6280 Removed the versions check from X509 routines when loading extensions:
6281 this allows certain broken certificates that don't set the version
6282 properly to be processed.
6285 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
6286 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
6287 can still be regenerated with "make depend".
6290 *) Spelling mistake in C version of CAST-128.
6291 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
6293 *) Changes to the error generation code. The perl script err-code.pl
6294 now reads in the old error codes and retains the old numbers, only
6295 adding new ones if necessary. It also only changes the .err files if new
6296 codes are added. The makefiles have been modified to only insert errors
6297 when needed (to avoid needlessly modifying header files). This is done
6298 by only inserting errors if the .err file is newer than the auto generated
6299 C file. To rebuild all the error codes from scratch (the old behaviour)
6300 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
6301 or delete all the .err files.
6304 *) CAST-128 was incorrectly implemented for short keys. The C version has
6305 been fixed, but is untested. The assembler versions are also fixed, but
6306 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
6307 to regenerate it if needed.
6308 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
6309 Hagino <itojun@kame.net>]
6311 *) File was opened incorrectly in randfile.c.
6312 [Ulf Möller <ulf@fitug.de>]
6314 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
6315 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
6316 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
6317 al: it's just almost always a UTCTime. Note this patch adds new error
6318 codes so do a "make errors" if there are problems.
6321 *) Correct Linux 1 recognition in config.
6322 [Ulf Möller <ulf@fitug.de>]
6324 *) Remove pointless MD5 hash when using DSA keys in ca.
6325 [Anonymous <nobody@replay.com>]
6327 *) Generate an error if given an empty string as a cert directory. Also
6328 generate an error if handed NULL (previously returned 0 to indicate an
6329 error, but didn't set one).
6330 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
6332 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
6335 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
6336 parameters. This was causing a warning which killed off the Win32 compile.
6339 *) Remove C++ style comments from crypto/bn/bn_local.h.
6340 [Neil Costigan <neil.costigan@celocom.com>]
6342 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
6343 based on a text string, looking up short and long names and finally
6344 "dot" format. The "dot" format stuff didn't work. Added new function
6345 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
6346 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
6347 OID is not part of the table.
6350 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
6351 X509_LOOKUP_by_alias().
6354 *) Sort openssl functions by name.
6357 *) Get the gendsa program working (hopefully) and add it to app list. Remove
6358 encryption from sample DSA keys (in case anyone is interested the password
6362 *) Make _all_ *_free functions accept a NULL pointer.
6363 [Frans Heymans <fheymans@isaserver.be>]
6365 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
6367 [Anonymous <nobody@replay.com>]
6369 *) s_server should send the CAfile as acceptable CAs, not its own cert.
6370 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
6372 *) Don't blow it for numeric -newkey arguments to apps/req.
6373 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
6375 *) Temp key "for export" tests were wrong in s3_srvr.c.
6376 [Anonymous <nobody@replay.com>]
6378 *) Add prototype for temp key callback functions
6379 SSL_CTX_set_tmp_{rsa,dh}_callback().
6382 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
6383 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
6386 *) X509_name_add_entry() freed the wrong thing after an error.
6387 [Arne Ansper <arne@ats.cyber.ee>]
6389 *) rsa_eay.c would attempt to free a NULL context.
6390 [Arne Ansper <arne@ats.cyber.ee>]
6392 *) BIO_s_socket() had a broken should_retry() on Windoze.
6393 [Arne Ansper <arne@ats.cyber.ee>]
6395 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
6396 [Arne Ansper <arne@ats.cyber.ee>]
6398 *) Make sure the already existing X509_STORE->depth variable is initialized
6399 in X509_STORE_new(), but document the fact that this variable is still
6400 unused in the certificate verification process.
6401 [Ralf S. Engelschall]
6403 *) Fix the various library and apps files to free up pkeys obtained from
6404 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
6407 *) Fix reference counting in X509_PUBKEY_get(). This makes
6408 demos/maurice/example2.c work, amongst others, probably.
6409 [Steve Henson and Ben Laurie]
6411 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
6412 `openssl' and second, the shortcut symlinks for the `openssl <command>'
6413 are no longer created. This way we have a single and consistent command
6414 line interface `openssl <command>', similar to `cvs <command>'.
6415 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
6417 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
6418 BIT STRING wrapper always have zero unused bits.
6421 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
6424 *) Make the top-level INSTALL documentation easier to understand.
6427 *) Makefiles updated to exit if an error occurs in a sub-directory
6428 make (including if user presses ^C) [Paul Sutton]
6430 *) Make Montgomery context stuff explicit in RSA data structure.
6433 *) Fix build order of pem and err to allow for generated pem.h.
6436 *) Fix renumbering bug in X509_NAME_delete_entry().
6439 *) Enhanced the err-ins.pl script so it makes the error library number
6440 global and can add a library name. This is needed for external ASN1 and
6441 other error libraries.
6444 *) Fixed sk_insert which never worked properly.
6447 *) Fix ASN1 macros so they can handle indefinite length construted
6448 EXPLICIT tags. Some non standard certificates use these: they can now
6452 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
6453 into a single doc/ssleay.txt bundle. This way the information is still
6454 preserved but no longer messes up this directory. Now it's new room for
6455 the new set of documenation files.
6456 [Ralf S. Engelschall]
6458 *) SETs were incorrectly DER encoded. This was a major pain, because they
6459 shared code with SEQUENCEs, which aren't coded the same. This means that
6460 almost everything to do with SETs or SEQUENCEs has either changed name or
6461 number of arguments.
6462 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
6464 *) Fix test data to work with the above.
6467 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
6468 was already fixed by Eric for 0.9.1 it seems.
6469 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
6471 *) Autodetect FreeBSD3.
6474 *) Fix various bugs in Configure. This affects the following platforms:
6478 unixware-2.0-pentium
6482 *) Eliminate generated files from CVS. Reorder tests to regenerate files
6483 before they are needed.
6486 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
6490 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
6492 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
6493 changed SSLeay to OpenSSL in version strings.
6494 [Ralf S. Engelschall]
6496 *) Some fixups to the top-level documents.
6499 *) Fixed the nasty bug where rsaref.h was not found under compile-time
6500 because the symlink to include/ was missing.
6501 [Ralf S. Engelschall]
6503 *) Incorporated the popular no-RSA/DSA-only patches
6504 which allow to compile a RSA-free SSLeay.
6505 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
6507 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
6508 when "ssleay" is still not found.
6509 [Ralf S. Engelschall]
6511 *) Added more platforms to Configure: Cray T3E, HPUX 11,
6512 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
6514 *) Updated the README file.
6515 [Ralf S. Engelschall]
6517 *) Added various .cvsignore files in the CVS repository subdirs
6518 to make a "cvs update" really silent.
6519 [Ralf S. Engelschall]
6521 *) Recompiled the error-definition header files and added
6522 missing symbols to the Win32 linker tables.
6523 [Ralf S. Engelschall]
6525 *) Cleaned up the top-level documents;
6526 o new files: CHANGES and LICENSE
6527 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
6528 o merged COPYRIGHT into LICENSE
6529 o removed obsolete TODO file
6530 o renamed MICROSOFT to INSTALL.W32
6531 [Ralf S. Engelschall]
6533 *) Removed dummy files from the 0.9.1b source tree:
6534 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
6535 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
6536 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
6537 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
6538 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
6539 [Ralf S. Engelschall]
6541 *) Added various platform portability fixes.
6544 *) The Genesis of the OpenSSL rpject:
6545 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
6546 Young and Tim J. Hudson created while they were working for C2Net until
6548 [The OpenSSL Project]
6551 Changes between 0.9.0b and 0.9.1b [not released]
6553 *) Updated a few CA certificates under certs/
6556 *) Changed some BIGNUM api stuff.
6559 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
6560 DGUX x86, Linux Alpha, etc.
6563 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
6564 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
6568 *) Add -strparse option to asn1pars program which parses nested
6570 [Dr Stephen Henson <shenson@bigfoot.com>]
6572 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
6575 *) DSA fix for "ca" program.
6578 *) Added "-genkey" option to "dsaparam" program.
6581 *) Added RIPE MD160 (rmd160) message digest.
6584 *) Added -a (all) option to "ssleay version" command.
6587 *) Added PLATFORM define which is the id given to Configure.
6590 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
6593 *) Extended the ASN.1 parser routines.
6596 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
6599 *) Added a BN_CTX to the BN library.
6602 *) Fixed the weak key values in DES library
6605 *) Changed API in EVP library for cipher aliases.
6608 *) Added support for RC2/64bit cipher.
6611 *) Converted the lhash library to the crypto/mem.c functions.
6614 *) Added more recognized ASN.1 object ids.
6617 *) Added more RSA padding checks for SSL/TLS.
6620 *) Added BIO proxy/filter functionality.
6623 *) Added extra_certs to SSL_CTX which can be used
6624 send extra CA certificates to the client in the CA cert chain sending
6625 process. It can be configured with SSL_CTX_add_extra_chain_cert().
6628 *) Now Fortezza is denied in the authentication phase because
6629 this is key exchange mechanism is not supported by SSLeay at all.
6632 *) Additional PKCS1 checks.
6635 *) Support the string "TLSv1" for all TLS v1 ciphers.
6638 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
6639 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
6642 *) Fixed a few memory leaks.
6645 *) Fixed various code and comment typos.
6648 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
6649 bytes sent in the client random.
6650 [Edward Bishop <ebishop@spyglass.com>]