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 *) DSA routines: under certain error conditions uninitialized BN objects
385 could be freed. Solution: make sure initialization is performed early
386 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
387 Nils Larsch <nla@trustcenter.de> via PR#459)
390 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
391 checked on reconnect on the client side, therefore session resumption
392 could still fail with a "ssl session id is different" error. This
393 behaviour is masked when SSL_OP_ALL is used due to
394 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
395 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
399 *) IA-32 assembler support enhancements: unified ELF targets, support
400 for SCO/Caldera platforms, fix for Cygwin shared build.
403 *) Add support for FreeBSD on sparc64. As a consequence, support for
404 FreeBSD on non-x86 processors is separate from x86 processors on
405 the config script, much like the NetBSD support.
406 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
408 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
410 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
411 code (06) was taken as the first octet of the session ID and the last
412 octet was ignored consequently. As a result SSLv2 client side session
413 caching could not have worked due to the session ID mismatch between
415 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
419 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
420 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
424 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
425 seems that in spite of existing for more than a year, many application
426 author have done nothing to provide the necessary callbacks, which
427 means that this particular engine will not work properly anywhere.
428 This is a very unfortunate situation which forces us, in the name
429 of usability, to give the hw_ncipher.c a static lock, which is part
431 NOTE: This is for the 0.9.7 series ONLY. This hack will never
432 appear in 0.9.8 or later. We EXPECT application authors to have
433 dealt properly with this when 0.9.8 is released (unless we actually
434 make such changes in the libcrypto locking code that changes will
435 have to be made anyway).
438 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
439 octets have been read, EOF or an error occurs. Without this change
440 some truncated ASN1 structures will not produce an error.
443 *) Disable Heimdal support, since it hasn't been fully implemented.
444 Still give the possibility to force the use of Heimdal, but with
445 warnings and a request that patches get sent to openssl-dev.
448 *) Add the VC-CE target, introduce the WINCE sysname, and add
449 INSTALL.WCE and appropriate conditionals to make it build.
450 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
452 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
453 cygssl-x.y.z.dll, where x, y and z are the major, minor and
454 edit numbers of the version.
455 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
457 *) Introduce safe string copy and catenation functions
458 (BUF_strlcpy() and BUF_strlcat()).
459 [Ben Laurie (CHATS) and Richard Levitte]
461 *) Avoid using fixed-size buffers for one-line DNs.
464 *) Add BUF_MEM_grow_clean() to avoid information leakage when
465 resizing buffers containing secrets, and use where appropriate.
468 *) Avoid using fixed size buffers for configuration file location.
471 *) Avoid filename truncation for various CA files.
474 *) Use sizeof in preference to magic numbers.
477 *) Avoid filename truncation in cert requests.
480 *) Add assertions to check for (supposedly impossible) buffer
484 *) Don't cache truncated DNS entries in the local cache (this could
485 potentially lead to a spoofing attack).
488 *) Fix various buffers to be large enough for hex/decimal
489 representations in a platform independent manner.
492 *) Add CRYPTO_realloc_clean() to avoid information leakage when
493 resizing buffers containing secrets, and use where appropriate.
496 *) Add BIO_indent() to avoid much slightly worrying code to do
500 *) Convert sprintf()/BIO_puts() to BIO_printf().
503 *) buffer_gets() could terminate with the buffer only half
507 *) Add assertions to prevent user-supplied crypto functions from
508 overflowing internal buffers by having large block sizes, etc.
511 *) New OPENSSL_assert() macro (similar to assert(), but enabled
515 *) Eliminate unused copy of key in RC4.
518 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
521 *) Fix off-by-one error in EGD path.
524 *) If RANDFILE path is too long, ignore instead of truncating.
527 *) Eliminate unused and incorrectly sized X.509 structure
531 *) Eliminate unused and dangerous function knumber().
534 *) Eliminate unused and dangerous structure, KSSL_ERR.
537 *) Protect against overlong session ID context length in an encoded
538 session object. Since these are local, this does not appear to be
542 *) Change from security patch (see 0.9.6e below) that did not affect
543 the 0.9.6 release series:
545 Remote buffer overflow in SSL3 protocol - an attacker could
546 supply an oversized master key in Kerberos-enabled versions.
550 *) Change the SSL kerb5 codes to match RFC 2712.
553 *) Make -nameopt work fully for req and add -reqopt switch.
554 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
556 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
557 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
559 *) Make sure tests can be performed even if the corresponding algorithms
560 have been removed entirely. This was also the last step to make
561 OpenSSL compilable with DJGPP under all reasonable conditions.
562 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
564 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
565 to allow version independent disabling of normally unselected ciphers,
566 which may be activated as a side-effect of selecting a single cipher.
568 (E.g., cipher list string "RSA" enables ciphersuites that are left
569 out of "ALL" because they do not provide symmetric encryption.
570 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
571 [Lutz Jaenicke, Bodo Moeller]
573 *) Add appropriate support for separate platform-dependent build
574 directories. The recommended way to make a platform-dependent
575 build directory is the following (tested on Linux), maybe with
578 # Place yourself outside of the OpenSSL source tree. In
579 # this example, the environment variable OPENSSL_SOURCE
580 # is assumed to contain the absolute OpenSSL source directory.
581 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
582 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
583 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
584 mkdir -p `dirname $F`
585 ln -s $OPENSSL_SOURCE/$F $F
588 To be absolutely sure not to disturb the source tree, a "make clean"
589 is a good thing. If it isn't successfull, don't worry about it,
590 it probably means the source directory is very clean.
593 *) Make sure any ENGINE control commands make local copies of string
594 pointers passed to them whenever necessary. Otherwise it is possible
595 the caller may have overwritten (or deallocated) the original string
596 data when a later ENGINE operation tries to use the stored values.
597 [Götz Babin-Ebell <babinebell@trustcenter.de>]
599 *) Improve diagnostics in file reading and command-line digests.
600 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
602 *) Add AES modes CFB and OFB to the object database. Correct an
603 error in AES-CFB decryption.
606 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
607 allows existing EVP_CIPHER_CTX structures to be reused after
608 calling EVP_*Final(). This behaviour is used by encryption
609 BIOs and some applications. This has the side effect that
610 applications must explicitly clean up cipher contexts with
611 EVP_CIPHER_CTX_cleanup() or they will leak memory.
614 *) Check the values of dna and dnb in bn_mul_recursive before calling
615 bn_mul_comba (a non zero value means the a or b arrays do not contain
616 n2 elements) and fallback to bn_mul_normal if either is not zero.
619 *) Fix escaping of non-ASCII characters when using the -subj option
620 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
623 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
624 form for "surname", serialNumber has no short form.
625 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
626 therefore remove "mail" short name for "internet 7".
627 The OID for unique identifiers in X509 certificates is
628 x500UniqueIdentifier, not uniqueIdentifier.
629 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
632 *) Add an "init" command to the ENGINE config module and auto initialize
633 ENGINEs. Without any "init" command the ENGINE will be initialized
634 after all ctrl commands have been executed on it. If init=1 the
635 ENGINE is initailized at that point (ctrls before that point are run
636 on the uninitialized ENGINE and after on the initialized one). If
637 init=0 then the ENGINE will not be iniatialized at all.
640 *) Fix the 'app_verify_callback' interface so that the user-defined
641 argument is actually passed to the callback: In the
642 SSL_CTX_set_cert_verify_callback() prototype, the callback
643 declaration has been changed from
646 int (*cb)(X509_STORE_CTX *,void *);
647 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
648 i=s->ctx->app_verify_callback(&ctx)
649 has been changed into
650 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
652 To update applications using SSL_CTX_set_cert_verify_callback(),
653 a dummy argument can be added to their callback functions.
654 [D. K. Smetters <smetters@parc.xerox.com>]
656 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
657 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
659 *) Add and OPENSSL_LOAD_CONF define which will cause
660 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
661 This allows older applications to transparently support certain
662 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
663 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
664 load the config file and OPENSSL_add_all_algorithms_conf() which will
665 always load it have also been added.
668 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
669 Adjust NIDs and EVP layer.
670 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
672 *) Config modules support in openssl utility.
674 Most commands now load modules from the config file,
675 though in a few (such as version) this isn't done
676 because it couldn't be used for anything.
678 In the case of ca and req the config file used is
679 the same as the utility itself: that is the -config
680 command line option can be used to specify an
684 *) Move default behaviour from OPENSSL_config(). If appname is NULL
685 use "openssl_conf" if filename is NULL use default openssl config file.
688 *) Add an argument to OPENSSL_config() to allow the use of an alternative
689 config section name. Add a new flag to tolerate a missing config file
690 and move code to CONF_modules_load_file().
693 *) Support for crypto accelerator cards from Accelerated Encryption
694 Processing, www.aep.ie. (Use engine 'aep')
695 The support was copied from 0.9.6c [engine] and adapted/corrected
696 to work with the new engine framework.
697 [AEP Inc. and Richard Levitte]
699 *) Support for SureWare crypto accelerator cards from Baltimore
700 Technologies. (Use engine 'sureware')
701 The support was copied from 0.9.6c [engine] and adapted
702 to work with the new engine framework.
705 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
706 make the newer ENGINE framework commands for the CHIL engine work.
707 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
709 *) Make it possible to produce shared libraries on ReliantUNIX.
710 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
712 *) Add the configuration target debug-linux-ppro.
713 Make 'openssl rsa' use the general key loading routines
714 implemented in apps.c, and make those routines able to
715 handle the key format FORMAT_NETSCAPE and the variant
717 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
719 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
720 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
722 *) Add -keyform to rsautl, and document -engine.
723 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
725 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
726 BIO_R_NO_SUCH_FILE error code rather than the generic
727 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
732 ERR_peek_last_error_line
733 ERR_peek_last_error_line_data.
737 ERR_peek_error_line_data,
738 but report on the latest error recorded rather than the first one
739 still in the error queue.
740 [Ben Laurie, Bodo Moeller]
742 *) default_algorithms option in ENGINE config module. This allows things
744 default_algorithms = ALL
745 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
748 *) Prelminary ENGINE config module.
751 *) New experimental application configuration code.
754 *) Change the AES code to follow the same name structure as all other
755 symmetric ciphers, and behave the same way. Move everything to
756 the directory crypto/aes, thereby obsoleting crypto/rijndael.
757 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
759 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
760 [Ben Laurie and Theo de Raadt]
762 *) Add option to output public keys in req command.
763 [Massimiliano Pala madwolf@openca.org]
765 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
766 (up to about 10% better than before for P-192 and P-224).
769 *) New functions/macros
771 SSL_CTX_set_msg_callback(ctx, cb)
772 SSL_CTX_set_msg_callback_arg(ctx, arg)
773 SSL_set_msg_callback(ssl, cb)
774 SSL_set_msg_callback_arg(ssl, arg)
776 to request calling a callback function
778 void cb(int write_p, int version, int content_type,
779 const void *buf, size_t len, SSL *ssl, void *arg)
781 whenever a protocol message has been completely received
782 (write_p == 0) or sent (write_p == 1). Here 'version' is the
783 protocol version according to which the SSL library interprets
784 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
785 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
786 the content type as defined in the SSL 3.0/TLS 1.0 protocol
787 specification (change_cipher_spec(20), alert(21), handshake(22)).
788 'buf' and 'len' point to the actual message, 'ssl' to the
789 SSL object, and 'arg' is the application-defined value set by
790 SSL[_CTX]_set_msg_callback_arg().
792 'openssl s_client' and 'openssl s_server' have new '-msg' options
793 to enable a callback that displays all protocol messages.
796 *) Change the shared library support so shared libraries are built as
797 soon as the corresponding static library is finished, and thereby get
798 openssl and the test programs linked against the shared library.
799 This still only happens when the keyword "shard" has been given to
800 the configuration scripts.
802 NOTE: shared library support is still an experimental thing, and
803 backward binary compatibility is still not guaranteed.
804 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
806 *) Add support for Subject Information Access extension.
807 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
809 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
810 additional bytes when new memory had to be allocated, not just
811 when reusing an existing buffer.
814 *) New command line and configuration option 'utf8' for the req command.
815 This allows field values to be specified as UTF8 strings.
818 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
819 runs for the former and machine-readable output for the latter.
822 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
823 of the e-mail address in the DN (i.e., it will go into a certificate
824 extension only). The new configuration file option 'email_in_dn = no'
826 [Massimiliano Pala madwolf@openca.org]
828 *) Change all functions with names starting with des_ to be starting
829 with DES_ instead. Add wrappers that are compatible with libdes,
830 but are named _ossl_old_des_*. Finally, add macros that map the
831 des_* symbols to the corresponding _ossl_old_des_* if libdes
832 compatibility is desired. If OpenSSL 0.9.6c compatibility is
833 desired, the des_* symbols will be mapped to DES_*, with one
836 Since we provide two compatibility mappings, the user needs to
837 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
838 compatibility is desired. The default (i.e., when that macro
839 isn't defined) is OpenSSL 0.9.6c compatibility.
841 There are also macros that enable and disable the support of old
842 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
843 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
844 are defined, the default will apply: to support the old des routines.
846 In either case, one must include openssl/des.h to get the correct
847 definitions. Do not try to just include openssl/des_old.h, that
850 NOTE: This is a major break of an old API into a new one. Software
851 authors are encouraged to switch to the DES_ style functions. Some
852 time in the future, des_old.h and the libdes compatibility functions
853 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
854 default), and then completely removed.
857 *) Test for certificates which contain unsupported critical extensions.
858 If such a certificate is found during a verify operation it is
859 rejected by default: this behaviour can be overridden by either
860 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
861 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
862 X509_supported_extension() has also been added which returns 1 if a
863 particular extension is supported.
866 *) Modify the behaviour of EVP cipher functions in similar way to digests
867 to retain compatibility with existing code.
870 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
871 compatibility with existing code. In particular the 'ctx' parameter does
872 not have to be to be initialized before the call to EVP_DigestInit() and
873 it is tidied up after a call to EVP_DigestFinal(). New function
874 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
875 EVP_MD_CTX_copy() changed to not require the destination to be
876 initialized valid and new function EVP_MD_CTX_copy_ex() added which
877 requires the destination to be valid.
879 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
880 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
883 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
884 so that complete 'Handshake' protocol structures are kept in memory
885 instead of overwriting 'msg_type' and 'length' with 'body' data.
888 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
889 [Massimo Santin via Richard Levitte]
891 *) Major restructuring to the underlying ENGINE code. This includes
892 reduction of linker bloat, separation of pure "ENGINE" manipulation
893 (initialisation, etc) from functionality dealing with implementations
894 of specific crypto iterfaces. This change also introduces integrated
895 support for symmetric ciphers and digest implementations - so ENGINEs
896 can now accelerate these by providing EVP_CIPHER and EVP_MD
897 implementations of their own. This is detailed in crypto/engine/README
898 as it couldn't be adequately described here. However, there are a few
899 API changes worth noting - some RSA, DSA, DH, and RAND functions that
900 were changed in the original introduction of ENGINE code have now
901 reverted back - the hooking from this code to ENGINE is now a good
902 deal more passive and at run-time, operations deal directly with
903 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
904 dereferencing through an ENGINE pointer any more. Also, the ENGINE
905 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
906 they were not being used by the framework as there is no concept of a
907 BIGNUM_METHOD and they could not be generalised to the new
908 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
909 ENGINE_cpy() has been removed as it cannot be consistently defined in
913 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
916 *) Change mkdef.pl to sort symbols that get the same entry number,
917 and make sure the automatically generated functions ERR_load_*
918 become part of libeay.num as well.
921 *) New function SSL_renegotiate_pending(). This returns true once
922 renegotiation has been requested (either SSL_renegotiate() call
923 or HelloRequest/ClientHello receveived from the peer) and becomes
924 false once a handshake has been completed.
925 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
926 sends a HelloRequest, but does not ensure that a handshake takes
927 place. SSL_renegotiate_pending() is useful for checking if the
928 client has followed the request.)
931 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
932 By default, clients may request session resumption even during
933 renegotiation (if session ID contexts permit); with this option,
934 session resumption is possible only in the first handshake.
936 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
937 more bits available for options that should not be part of
938 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
941 *) Add some demos for certificate and certificate request creation.
944 *) Make maximum certificate chain size accepted from the peer application
945 settable (SSL*_get/set_max_cert_list()), as proposed by
946 "Douglas E. Engert" <deengert@anl.gov>.
949 *) Add support for shared libraries for Unixware-7
950 (Boyd Lynn Gerber <gerberb@zenez.com>).
953 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
954 be done prior to destruction. Use this to unload error strings from
955 ENGINEs that load their own error strings. NB: This adds two new API
956 functions to "get" and "set" this destroy handler in an ENGINE.
959 *) Alter all existing ENGINE implementations (except "openssl" and
960 "openbsd") to dynamically instantiate their own error strings. This
961 makes them more flexible to be built both as statically-linked ENGINEs
962 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
963 Also, add stub code to each that makes building them as self-contained
964 shared-libraries easier (see README.ENGINE).
967 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
968 implementations into applications that are completely implemented in
969 self-contained shared-libraries. The "dynamic" ENGINE exposes control
970 commands that can be used to configure what shared-library to load and
971 to control aspects of the way it is handled. Also, made an update to
972 the README.ENGINE file that brings its information up-to-date and
973 provides some information and instructions on the "dynamic" ENGINE
974 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
977 *) Make it possible to unload ranges of ERR strings with a new
978 "ERR_unload_strings" function.
981 *) Add a copy() function to EVP_MD.
984 *) Make EVP_MD routines take a context pointer instead of just the
985 md_data void pointer.
988 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
989 that the digest can only process a single chunk of data
990 (typically because it is provided by a piece of
991 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
992 is only going to provide a single chunk of data, and hence the
993 framework needn't accumulate the data for oneshot drivers.
996 *) As with "ERR", make it possible to replace the underlying "ex_data"
997 functions. This change also alters the storage and management of global
998 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
999 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
1000 index counters. The API functions that use this state have been changed
1001 to take a "class_index" rather than pointers to the class's local STACK
1002 and counter, and there is now an API function to dynamically create new
1003 classes. This centralisation allows us to (a) plug a lot of the
1004 thread-safety problems that existed, and (b) makes it possible to clean
1005 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
1006 such data would previously have always leaked in application code and
1007 workarounds were in place to make the memory debugging turn a blind eye
1008 to it. Application code that doesn't use this new function will still
1009 leak as before, but their memory debugging output will announce it now
1010 rather than letting it slide.
1012 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
1013 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
1014 has a return value to indicate success or failure.
1017 *) Make it possible to replace the underlying "ERR" functions such that the
1018 global state (2 LHASH tables and 2 locks) is only used by the "default"
1019 implementation. This change also adds two functions to "get" and "set"
1020 the implementation prior to it being automatically set the first time
1021 any other ERR function takes place. Ie. an application can call "get",
1022 pass the return value to a module it has just loaded, and that module
1023 can call its own "set" function using that value. This means the
1024 module's "ERR" operations will use (and modify) the error state in the
1025 application and not in its own statically linked copy of OpenSSL code.
1028 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
1029 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
1030 the operation, and provides a more encapsulated way for external code
1031 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
1032 to use these functions rather than manually incrementing the counts.
1034 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
1037 *) Add EVP test program.
1040 *) Add symmetric cipher support to ENGINE. Expect the API to change!
1043 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
1044 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
1045 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
1046 These allow a CRL to be built without having to access X509_CRL fields
1047 directly. Modify 'ca' application to use new functions.
1050 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
1051 bug workarounds. Rollback attack detection is a security feature.
1052 The problem will only arise on OpenSSL servers when TLSv1 is not
1053 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
1054 Software authors not wanting to support TLSv1 will have special reasons
1055 for their choice and can explicitly enable this option.
1056 [Bodo Moeller, Lutz Jaenicke]
1058 *) Rationalise EVP so it can be extended: don't include a union of
1059 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
1060 (similar to those existing for EVP_CIPHER_CTX).
1065 EVP_MD_CTX_init(&md); /* new function call */
1066 EVP_DigestInit(&md, EVP_sha1());
1067 EVP_DigestUpdate(&md, in, len);
1068 EVP_DigestFinal(&md, out, NULL);
1069 EVP_MD_CTX_cleanup(&md); /* new function call */
1073 *) Make DES key schedule conform to the usual scheme, as well as
1074 correcting its structure. This means that calls to DES functions
1075 now have to pass a pointer to a des_key_schedule instead of a
1076 plain des_key_schedule (which was actually always a pointer
1079 des_key_schedule ks;
1081 des_set_key_checked(..., &ks);
1082 des_ncbc_encrypt(..., &ks, ...);
1084 (Note that a later change renames 'des_...' into 'DES_...'.)
1087 *) Initial reduction of linker bloat: the use of some functions, such as
1088 PEM causes large amounts of unused functions to be linked in due to
1089 poor organisation. For example pem_all.c contains every PEM function
1090 which has a knock on effect of linking in large amounts of (unused)
1091 ASN1 code. Grouping together similar functions and splitting unrelated
1092 functions prevents this.
1095 *) Cleanup of EVP macros.
1098 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
1099 correct _ecb suffix.
1102 *) Add initial OCSP responder support to ocsp application. The
1103 revocation information is handled using the text based index
1104 use by the ca application. The responder can either handle
1105 requests generated internally, supplied in files (for example
1106 via a CGI script) or using an internal minimal server.
1109 *) Add configuration choices to get zlib compression for TLS.
1112 *) Changes to Kerberos SSL for RFC 2712 compliance:
1113 1. Implemented real KerberosWrapper, instead of just using
1114 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
1115 2. Implemented optional authenticator field of KerberosWrapper.
1117 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
1118 and authenticator structs; see crypto/krb5/.
1120 Generalized Kerberos calls to support multiple Kerberos libraries.
1121 [Vern Staats <staatsvr@asc.hpc.mil>,
1122 Jeffrey Altman <jaltman@columbia.edu>
1123 via Richard Levitte]
1125 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
1126 already does with RSA. testdsa.h now has 'priv_key/pub_key'
1127 values for each of the key sizes rather than having just
1128 parameters (and 'speed' generating keys each time).
1131 *) Speed up EVP routines.
1134 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
1135 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
1136 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
1137 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
1139 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
1140 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
1141 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
1144 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
1146 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
1149 *) Added the OS2-EMX target.
1150 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
1152 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
1153 to support NCONF routines in extension code. New function CONF_set_nconf()
1154 to allow functions which take an NCONF to also handle the old LHASH
1155 structure: this means that the old CONF compatible routines can be
1156 retained (in particular wrt extensions) without having to duplicate the
1157 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
1160 *) Enhance the general user interface with mechanisms for inner control
1161 and with possibilities to have yes/no kind of prompts.
1164 *) Change all calls to low level digest routines in the library and
1165 applications to use EVP. Add missing calls to HMAC_cleanup() and
1166 don't assume HMAC_CTX can be copied using memcpy().
1167 [Verdon Walker <VWalker@novell.com>, Steve Henson]
1169 *) Add the possibility to control engines through control names but with
1170 arbitrary arguments instead of just a string.
1171 Change the key loaders to take a UI_METHOD instead of a callback
1172 function pointer. NOTE: this breaks binary compatibility with earlier
1173 versions of OpenSSL [engine].
1174 Adapt the nCipher code for these new conditions and add a card insertion
1178 *) Enhance the general user interface with mechanisms to better support
1179 dialog box interfaces, application-defined prompts, the possibility
1180 to use defaults (for example default passwords from somewhere else)
1181 and interrupts/cancellations.
1184 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
1185 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
1188 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
1189 tidy up some unnecessarily weird code in 'sk_new()').
1190 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
1192 *) Change the key loading routines for ENGINEs to use the same kind
1193 callback (pem_password_cb) as all other routines that need this
1197 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
1198 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
1199 than this minimum value is recommended.
1202 *) New random seeder for OpenVMS, using the system process statistics
1203 that are easily reachable.
1206 *) Windows apparently can't transparently handle global
1207 variables defined in DLLs. Initialisations such as:
1209 const ASN1_ITEM *it = &ASN1_INTEGER_it;
1211 wont compile. This is used by the any applications that need to
1212 declare their own ASN1 modules. This was fixed by adding the option
1213 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
1214 needed for static libraries under Win32.
1217 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
1218 setting of purpose and trust fields. New X509_STORE trust and
1219 purpose functions and tidy up setting in other SSL functions.
1222 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
1223 structure. These are inherited by X509_STORE_CTX when it is
1224 initialised. This allows various defaults to be set in the
1225 X509_STORE structure (such as flags for CRL checking and custom
1226 purpose or trust settings) for functions which only use X509_STORE_CTX
1227 internally such as S/MIME.
1229 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
1230 trust settings if they are not set in X509_STORE. This allows X509_STORE
1231 purposes and trust (in S/MIME for example) to override any set by default.
1233 Add command line options for CRL checking to smime, s_client and s_server
1237 *) Initial CRL based revocation checking. If the CRL checking flag(s)
1238 are set then the CRL is looked up in the X509_STORE structure and
1239 its validity and signature checked, then if the certificate is found
1240 in the CRL the verify fails with a revoked error.
1242 Various new CRL related callbacks added to X509_STORE_CTX structure.
1244 Command line options added to 'verify' application to support this.
1246 This needs some additional work, such as being able to handle multiple
1247 CRLs with different times, extension based lookup (rather than just
1248 by subject name) and ultimately more complete V2 CRL extension
1252 *) Add a general user interface API (crypto/ui/). This is designed
1253 to replace things like des_read_password and friends (backward
1254 compatibility functions using this new API are provided).
1255 The purpose is to remove prompting functions from the DES code
1256 section as well as provide for prompting through dialog boxes in
1257 a window system and the like.
1260 *) Add "ex_data" support to ENGINE so implementations can add state at a
1261 per-structure level rather than having to store it globally.
1264 *) Make it possible for ENGINE structures to be copied when retrieved by
1265 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
1266 This causes the "original" ENGINE structure to act like a template,
1267 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
1268 operational state can be localised to each ENGINE structure, despite the
1269 fact they all share the same "methods". New ENGINE structures returned in
1270 this case have no functional references and the return value is the single
1271 structural reference. This matches the single structural reference returned
1272 by ENGINE_by_id() normally, when it is incremented on the pre-existing
1276 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
1277 needs to match any other type at all we need to manually clear the
1281 *) Changes to the "openssl engine" utility to include;
1282 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
1283 about an ENGINE's available control commands.
1284 - executing control commands from command line arguments using the
1285 '-pre' and '-post' switches. '-post' is only used if '-t' is
1286 specified and the ENGINE is successfully initialised. The syntax for
1287 the individual commands are colon-separated, for example;
1288 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
1291 *) New dynamic control command support for ENGINEs. ENGINEs can now
1292 declare their own commands (numbers), names (strings), descriptions,
1293 and input types for run-time discovery by calling applications. A
1294 subset of these commands are implicitly classed as "executable"
1295 depending on their input type, and only these can be invoked through
1296 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
1297 can be based on user input, config files, etc). The distinction is
1298 that "executable" commands cannot return anything other than a boolean
1299 result and can only support numeric or string input, whereas some
1300 discoverable commands may only be for direct use through
1301 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
1302 pointers, or other custom uses. The "executable" commands are to
1303 support parameterisations of ENGINE behaviour that can be
1304 unambiguously defined by ENGINEs and used consistently across any
1305 OpenSSL-based application. Commands have been added to all the
1306 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
1307 control over shared-library paths without source code alterations.
1310 *) Changed all ENGINE implementations to dynamically allocate their
1311 ENGINEs rather than declaring them statically. Apart from this being
1312 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
1313 this also allows the implementations to compile without using the
1314 internal engine_int.h header.
1317 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
1318 'const' value. Any code that should be able to modify a RAND_METHOD
1319 should already have non-const pointers to it (ie. they should only
1320 modify their own ones).
1323 *) Made a variety of little tweaks to the ENGINE code.
1324 - "atalla" and "ubsec" string definitions were moved from header files
1325 to C code. "nuron" string definitions were placed in variables
1326 rather than hard-coded - allowing parameterisation of these values
1327 later on via ctrl() commands.
1328 - Removed unused "#if 0"'d code.
1329 - Fixed engine list iteration code so it uses ENGINE_free() to release
1330 structural references.
1331 - Constified the RAND_METHOD element of ENGINE structures.
1332 - Constified various get/set functions as appropriate and added
1333 missing functions (including a catch-all ENGINE_cpy that duplicates
1334 all ENGINE values onto a new ENGINE except reference counts/state).
1335 - Removed NULL parameter checks in get/set functions. Setting a method
1336 or function to NULL is a way of cancelling out a previously set
1337 value. Passing a NULL ENGINE parameter is just plain stupid anyway
1338 and doesn't justify the extra error symbols and code.
1339 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
1340 flags from engine_int.h to engine.h.
1341 - Changed prototypes for ENGINE handler functions (init(), finish(),
1342 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
1345 *) Implement binary inversion algorithm for BN_mod_inverse in addition
1346 to the algorithm using long division. The binary algorithm can be
1347 used only if the modulus is odd. On 32-bit systems, it is faster
1348 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
1349 roughly 5-15% for 256-bit moduli), so we use it only for moduli
1350 up to 450 bits. In 64-bit environments, the binary algorithm
1351 appears to be advantageous for much longer moduli; here we use it
1352 for moduli up to 2048 bits.
1355 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
1356 could not support the combine flag in choice fields.
1359 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
1360 extensions from a certificate request to the certificate.
1363 *) Allow multiple 'certopt' and 'nameopt' options to be separated
1364 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
1365 file: this allows the display of the certificate about to be
1366 signed to be customised, to allow certain fields to be included
1367 or excluded and extension details. The old system didn't display
1368 multicharacter strings properly, omitted fields not in the policy
1369 and couldn't display additional details such as extensions.
1372 *) Function EC_POINTs_mul for multiple scalar multiplication
1373 of an arbitrary number of elliptic curve points
1374 \sum scalars[i]*points[i],
1375 optionally including the generator defined for the EC_GROUP:
1376 scalar*generator + \sum scalars[i]*points[i].
1378 EC_POINT_mul is a simple wrapper function for the typical case
1379 that the point list has just one item (besides the optional
1383 *) First EC_METHODs for curves over GF(p):
1385 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
1386 operations and provides various method functions that can also
1387 operate with faster implementations of modular arithmetic.
1389 EC_GFp_mont_method() reuses most functions that are part of
1390 EC_GFp_simple_method, but uses Montgomery arithmetic.
1392 [Bodo Moeller; point addition and point doubling
1393 implementation directly derived from source code provided by
1394 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
1396 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
1397 crypto/ec/ec_lib.c):
1399 Curves are EC_GROUP objects (with an optional group generator)
1400 based on EC_METHODs that are built into the library.
1402 Points are EC_POINT objects based on EC_GROUP objects.
1404 Most of the framework would be able to handle curves over arbitrary
1405 finite fields, but as there are no obvious types for fields other
1406 than GF(p), some functions are limited to that for now.
1409 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
1410 that the file contains a complete HTTP response.
1413 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
1414 change the def and num file printf format specifier from "%-40sXXX"
1415 to "%-39s XXX". The latter will always guarantee a space after the
1416 field while the former will cause them to run together if the field
1417 is 40 of more characters long.
1420 *) Constify the cipher and digest 'method' functions and structures
1421 and modify related functions to take constant EVP_MD and EVP_CIPHER
1425 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
1426 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
1429 *) Modify EVP_Digest*() routines so they now return values. Although the
1430 internal software routines can never fail additional hardware versions
1434 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
1436 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
1437 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
1440 ERR_R_NESTED_ASN1_ERROR
1442 ERR_R_MISSING_ASN1_EOS
1443 were 4 .. 9, conflicting with
1444 ERR_LIB_RSA (= ERR_R_RSA_LIB)
1446 ERR_LIB_PEM (= ERR_R_PEM_LIB).
1447 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
1449 Add new error code 'ERR_R_INTERNAL_ERROR'.
1452 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
1456 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
1457 sets the subject name for a new request or supersedes the
1458 subject name in a given request. Formats that can be parsed are
1459 'CN=Some Name, OU=myOU, C=IT'
1461 'CN=Some Name/OU=myOU/C=IT'.
1463 Add options '-batch' and '-verbose' to 'openssl req'.
1464 [Massimiliano Pala <madwolf@hackmasters.net>]
1466 *) Introduce the possibility to access global variables through
1467 functions on platform were that's the best way to handle exporting
1468 global variables in shared libraries. To enable this functionality,
1469 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
1470 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
1471 is normally done by Configure or something similar).
1473 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
1474 in the source file (foo.c) like this:
1476 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
1477 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
1479 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
1480 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
1482 OPENSSL_DECLARE_GLOBAL(int,foo);
1483 #define foo OPENSSL_GLOBAL_REF(foo)
1484 OPENSSL_DECLARE_GLOBAL(double,bar);
1485 #define bar OPENSSL_GLOBAL_REF(bar)
1487 The #defines are very important, and therefore so is including the
1488 header file everywhere where the defined globals are used.
1490 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
1491 of ASN.1 items, but that structure is a bit different.
1493 The largest change is in util/mkdef.pl which has been enhanced with
1494 better and easier to understand logic to choose which symbols should
1495 go into the Windows .def files as well as a number of fixes and code
1496 cleanup (among others, algorithm keywords are now sorted
1497 lexicographically to avoid constant rewrites).
1500 *) In BN_div() keep a copy of the sign of 'num' before writing the
1501 result to 'rm' because if rm==num the value will be overwritten
1502 and produce the wrong result if 'num' is negative: this caused
1503 problems with BN_mod() and BN_nnmod().
1506 *) Function OCSP_request_verify(). This checks the signature on an
1507 OCSP request and verifies the signer certificate. The signer
1508 certificate is just checked for a generic purpose and OCSP request
1512 *) Add OCSP_check_validity() function to check the validity of OCSP
1513 responses. OCSP responses are prepared in real time and may only
1514 be a few seconds old. Simply checking that the current time lies
1515 between thisUpdate and nextUpdate max reject otherwise valid responses
1516 caused by either OCSP responder or client clock inaccuracy. Instead
1517 we allow thisUpdate and nextUpdate to fall within a certain period of
1518 the current time. The age of the response can also optionally be
1519 checked. Two new options -validity_period and -status_age added to
1523 *) If signature or public key algorithm is unrecognized print out its
1524 OID rather that just UNKNOWN.
1527 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
1528 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
1529 ID to be generated from the issuer certificate alone which can then be
1530 passed to OCSP_id_issuer_cmp().
1533 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
1534 ASN1 modules to export functions returning ASN1_ITEM pointers
1535 instead of the ASN1_ITEM structures themselves. This adds several
1536 new macros which allow the underlying ASN1 function/structure to
1537 be accessed transparently. As a result code should not use ASN1_ITEM
1538 references directly (such as &X509_it) but instead use the relevant
1539 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
1540 use of the new ASN1 code on platforms where exporting structures
1541 is problematical (for example in shared libraries) but exporting
1542 functions returning pointers to structures is not.
1545 *) Add support for overriding the generation of SSL/TLS session IDs.
1546 These callbacks can be registered either in an SSL_CTX or per SSL.
1547 The purpose of this is to allow applications to control, if they wish,
1548 the arbitrary values chosen for use as session IDs, particularly as it
1549 can be useful for session caching in multiple-server environments. A
1550 command-line switch for testing this (and any client code that wishes
1551 to use such a feature) has been added to "s_server".
1552 [Geoff Thorpe, Lutz Jaenicke]
1554 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
1555 of the form '#if defined(...) || defined(...) || ...' and
1556 '#if !defined(...) && !defined(...) && ...'. This also avoids
1557 the growing number of special cases it was previously handling.
1560 *) Make all configuration macros available for application by making
1561 sure they are available in opensslconf.h, by giving them names starting
1562 with "OPENSSL_" to avoid conflicts with other packages and by making
1563 sure e_os2.h will cover all platform-specific cases together with
1565 Additionally, it is now possible to define configuration/platform-
1566 specific names (called "system identities"). In the C code, these
1567 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
1568 macro with the name beginning with "OPENSSL_SYS_", which is determined
1569 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
1573 *) New option -set_serial to 'req' and 'x509' this allows the serial
1574 number to use to be specified on the command line. Previously self
1575 signed certificates were hard coded with serial number 0 and the
1576 CA options of 'x509' had to use a serial number in a file which was
1580 *) New options to 'ca' utility to support V2 CRL entry extensions.
1581 Currently CRL reason, invalidity date and hold instruction are
1582 supported. Add new CRL extensions to V3 code and some new objects.
1585 *) New function EVP_CIPHER_CTX_set_padding() this is used to
1586 disable standard block padding (aka PKCS#5 padding) in the EVP
1587 API, which was previously mandatory. This means that the data is
1588 not padded in any way and so the total length much be a multiple
1589 of the block size, otherwise an error occurs.
1592 *) Initial (incomplete) OCSP SSL support.
1595 *) New function OCSP_parse_url(). This splits up a URL into its host,
1596 port and path components: primarily to parse OCSP URLs. New -url
1597 option to ocsp utility.
1600 *) New nonce behavior. The return value of OCSP_check_nonce() now
1601 reflects the various checks performed. Applications can decide
1602 whether to tolerate certain situations such as an absent nonce
1603 in a response when one was present in a request: the ocsp application
1604 just prints out a warning. New function OCSP_add1_basic_nonce()
1605 this is to allow responders to include a nonce in a response even if
1606 the request is nonce-less.
1609 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
1610 skipped when using openssl x509 multiple times on a single input file,
1611 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
1614 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
1615 set string type: to handle setting ASN1_TIME structures. Fix ca
1616 utility to correctly initialize revocation date of CRLs.
1619 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
1620 the clients preferred ciphersuites and rather use its own preferences.
1621 Should help to work around M$ SGC (Server Gated Cryptography) bug in
1622 Internet Explorer by ensuring unchanged hash method during stepup.
1623 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
1626 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
1627 to aes and add a new 'exist' option to print out symbols that don't
1631 *) Additional options to ocsp utility to allow flags to be set and
1632 additional certificates supplied.
1635 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
1636 OCSP client a number of certificate to only verify the response
1640 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
1641 handle the new API. Currently only ECB, CBC modes supported. Add new
1644 Add TLS AES ciphersuites as described in RFC3268, "Advanced
1645 Encryption Standard (AES) Ciphersuites for Transport Layer
1646 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
1647 not enabled by default and were not part of the "ALL" ciphersuite
1648 alias because they were not yet official; they could be
1649 explicitly requested by specifying the "AESdraft" ciphersuite
1650 group alias. In the final release of OpenSSL 0.9.7, the group
1651 alias is called "AES" and is part of "ALL".)
1652 [Ben Laurie, Steve Henson, Bodo Moeller]
1654 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
1655 request to response.
1658 *) Functions for OCSP responders. OCSP_request_onereq_count(),
1659 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
1660 extract information from a certificate request. OCSP_response_create()
1661 creates a response and optionally adds a basic response structure.
1662 OCSP_basic_add1_status() adds a complete single response to a basic
1663 response and returns the OCSP_SINGLERESP structure just added (to allow
1664 extensions to be included for example). OCSP_basic_add1_cert() adds a
1665 certificate to a basic response and OCSP_basic_sign() signs a basic
1666 response with various flags. New helper functions ASN1_TIME_check()
1667 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
1668 (converts ASN1_TIME to GeneralizedTime).
1671 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
1672 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
1673 structure from a certificate. X509_pubkey_digest() digests the public_key
1674 contents: this is used in various key identifiers.
1677 *) Make sk_sort() tolerate a NULL argument.
1678 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
1680 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
1681 passed by the function are trusted implicitly. If any of them signed the
1682 response then it is assumed to be valid and is not verified.
1685 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
1686 to data. This was previously part of the PKCS7 ASN1 code. This
1687 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
1688 [Steve Henson, reported by Kenneth R. Robinette
1689 <support@securenetterm.com>]
1691 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
1692 routines: without these tracing memory leaks is very painful.
1693 Fix leaks in PKCS12 and PKCS7 routines.
1696 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
1697 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
1698 effectively meant GeneralizedTime would never be used. Now it
1699 is initialised to -1 but X509_time_adj() now has to check the value
1700 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
1701 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
1702 [Steve Henson, reported by Kenneth R. Robinette
1703 <support@securenetterm.com>]
1705 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
1706 result in a zero length in the ASN1_INTEGER structure which was
1707 not consistent with the structure when d2i_ASN1_INTEGER() was used
1708 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
1709 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
1710 where it did not print out a minus for negative ASN1_INTEGER.
1713 *) Add summary printout to ocsp utility. The various functions which
1714 convert status values to strings have been renamed to:
1715 OCSP_response_status_str(), OCSP_cert_status_str() and
1716 OCSP_crl_reason_str() and are no longer static. New options
1717 to verify nonce values and to disable verification. OCSP response
1718 printout format cleaned up.
1721 *) Add additional OCSP certificate checks. These are those specified
1722 in RFC2560. This consists of two separate checks: the CA of the
1723 certificate being checked must either be the OCSP signer certificate
1724 or the issuer of the OCSP signer certificate. In the latter case the
1725 OCSP signer certificate must contain the OCSP signing extended key
1726 usage. This check is performed by attempting to match the OCSP
1727 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
1728 in the OCSP_CERTID structures of the response.
1731 *) Initial OCSP certificate verification added to OCSP_basic_verify()
1732 and related routines. This uses the standard OpenSSL certificate
1733 verify routines to perform initial checks (just CA validity) and
1734 to obtain the certificate chain. Then additional checks will be
1735 performed on the chain. Currently the root CA is checked to see
1736 if it is explicitly trusted for OCSP signing. This is used to set
1737 a root CA as a global signing root: that is any certificate that
1738 chains to that CA is an acceptable OCSP signing certificate.
1741 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
1742 extensions from a separate configuration file.
1743 As when reading extensions from the main configuration file,
1744 the '-extensions ...' option may be used for specifying the
1746 [Massimiliano Pala <madwolf@comune.modena.it>]
1748 *) New OCSP utility. Allows OCSP requests to be generated or
1749 read. The request can be sent to a responder and the output
1750 parsed, outputed or printed in text form. Not complete yet:
1751 still needs to check the OCSP response validity.
1754 *) New subcommands for 'openssl ca':
1755 'openssl ca -status <serial>' prints the status of the cert with
1756 the given serial number (according to the index file).
1757 'openssl ca -updatedb' updates the expiry status of certificates
1759 [Massimiliano Pala <madwolf@comune.modena.it>]
1761 *) New '-newreq-nodes' command option to CA.pl. This is like
1762 '-newreq', but calls 'openssl req' with the '-nodes' option
1763 so that the resulting key is not encrypted.
1764 [Damien Miller <djm@mindrot.org>]
1766 *) New configuration for the GNU Hurd.
1767 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
1769 *) Initial code to implement OCSP basic response verify. This
1770 is currently incomplete. Currently just finds the signer's
1771 certificate and verifies the signature on the response.
1774 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
1775 value of OPENSSLDIR. This is available via the new '-d' option
1776 to 'openssl version', and is also included in 'openssl version -a'.
1779 *) Allowing defining memory allocation callbacks that will be given
1780 file name and line number information in additional arguments
1781 (a const char* and an int). The basic functionality remains, as
1782 well as the original possibility to just replace malloc(),
1783 realloc() and free() by functions that do not know about these
1784 additional arguments. To register and find out the current
1785 settings for extended allocation functions, the following
1786 functions are provided:
1788 CRYPTO_set_mem_ex_functions
1789 CRYPTO_set_locked_mem_ex_functions
1790 CRYPTO_get_mem_ex_functions
1791 CRYPTO_get_locked_mem_ex_functions
1793 These work the same way as CRYPTO_set_mem_functions and friends.
1794 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
1795 extended allocation function is enabled.
1796 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
1797 a conventional allocation function is enabled.
1798 [Richard Levitte, Bodo Moeller]
1800 *) Finish off removing the remaining LHASH function pointer casts.
1801 There should no longer be any prototype-casting required when using
1802 the LHASH abstraction, and any casts that remain are "bugs". See
1803 the callback types and macros at the head of lhash.h for details
1804 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
1807 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
1808 If /dev/[u]random devices are not available or do not return enough
1809 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
1811 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
1812 /etc/entropy will be queried once each in this sequence, quering stops
1813 when enough entropy was collected without querying more sockets.
1816 *) Change the Unix RAND_poll() variant to be able to poll several
1817 random devices, as specified by DEVRANDOM, until a sufficient amount
1818 of data has been collected. We spend at most 10 ms on each file
1819 (select timeout) and read in non-blocking mode. DEVRANDOM now
1820 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
1821 (previously it was just the string "/dev/urandom"), so on typical
1822 platforms the 10 ms delay will never occur.
1823 Also separate out the Unix variant to its own file, rand_unix.c.
1824 For VMS, there's a currently-empty rand_vms.c.
1827 *) Move OCSP client related routines to ocsp_cl.c. These
1828 provide utility functions which an application needing
1829 to issue a request to an OCSP responder and analyse the
1830 response will typically need: as opposed to those which an
1831 OCSP responder itself would need which will be added later.
1833 OCSP_request_sign() signs an OCSP request with an API similar
1834 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
1835 response. OCSP_response_get1_basic() extracts basic response
1836 from response. OCSP_resp_find_status(): finds and extracts status
1837 information from an OCSP_CERTID structure (which will be created
1838 when the request structure is built). These are built from lower
1839 level functions which work on OCSP_SINGLERESP structures but
1840 wont normally be used unless the application wishes to examine
1841 extensions in the OCSP response for example.
1843 Replace nonce routines with a pair of functions.
1844 OCSP_request_add1_nonce() adds a nonce value and optionally
1845 generates a random value. OCSP_check_nonce() checks the
1846 validity of the nonce in an OCSP response.
1849 *) Change function OCSP_request_add() to OCSP_request_add0_id().
1850 This doesn't copy the supplied OCSP_CERTID and avoids the
1851 need to free up the newly created id. Change return type
1852 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
1853 This can then be used to add extensions to the request.
1854 Deleted OCSP_request_new(), since most of its functionality
1855 is now in OCSP_REQUEST_new() (and the case insensitive name
1856 clash) apart from the ability to set the request name which
1857 will be added elsewhere.
1860 *) Update OCSP API. Remove obsolete extensions argument from
1861 various functions. Extensions are now handled using the new
1862 OCSP extension code. New simple OCSP HTTP function which
1863 can be used to send requests and parse the response.
1866 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
1867 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
1868 uses the special reorder version of SET OF to sort the attributes
1869 and reorder them to match the encoded order. This resolves a long
1870 standing problem: a verify on a PKCS7 structure just after signing
1871 it used to fail because the attribute order did not match the
1872 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
1873 it uses the received order. This is necessary to tolerate some broken
1874 software that does not order SET OF. This is handled by encoding
1875 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
1876 to produce the required SET OF.
1879 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
1880 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
1881 files to get correct declarations of the ASN.1 item variables.
1884 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
1885 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
1886 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
1887 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
1888 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
1889 ASN1_ITEM and no wrapper functions.
1892 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
1893 replace the old function pointer based I/O routines. Change most of
1894 the *_d2i_bio() and *_d2i_fp() functions to use these.
1897 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
1898 lines, recognice more "algorithms" that can be deselected, and make
1899 it complain about algorithm deselection that isn't recognised.
1902 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
1903 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
1904 to use new functions. Add NO_ASN1_OLD which can be set to remove
1905 some old style ASN1 functions: this can be used to determine if old
1906 code will still work when these eventually go away.
1909 *) New extension functions for OCSP structures, these follow the
1910 same conventions as certificates and CRLs.
1913 *) New function X509V3_add1_i2d(). This automatically encodes and
1914 adds an extension. Its behaviour can be customised with various
1915 flags to append, replace or delete. Various wrappers added for
1916 certifcates and CRLs.
1919 *) Fix to avoid calling the underlying ASN1 print routine when
1920 an extension cannot be parsed. Correct a typo in the
1921 OCSP_SERVICELOC extension. Tidy up print OCSP format.
1924 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
1925 entries for variables.
1928 *) Add functionality to apps/openssl.c for detecting locking
1929 problems: As the program is single-threaded, all we have
1930 to do is register a locking callback using an array for
1931 storing which locks are currently held by the program.
1934 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
1935 SSL_get_ex_data_X509_STORE_idx(), which is used in
1936 ssl_verify_cert_chain() and thus can be called at any time
1937 during TLS/SSL handshakes so that thread-safety is essential.
1938 Unfortunately, the ex_data design is not at all suited
1939 for multi-threaded use, so it probably should be abolished.
1942 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
1943 [Broadcom, tweaked and integrated by Geoff Thorpe]
1945 *) Move common extension printing code to new function
1946 X509V3_print_extensions(). Reorganise OCSP print routines and
1947 implement some needed OCSP ASN1 functions. Add OCSP extensions.
1950 *) New function X509_signature_print() to remove duplication in some
1954 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
1955 set (this was treated exactly the same as SET OF previously). This
1956 is used to reorder the STACK representing the structure to match the
1957 encoding. This will be used to get round a problem where a PKCS7
1958 structure which was signed could not be verified because the STACK
1959 order did not reflect the encoded order.
1962 *) Reimplement the OCSP ASN1 module using the new code.
1965 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
1966 for its ASN1 operations. The old style function pointers still exist
1967 for now but they will eventually go away.
1970 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
1971 completely replaces the old ASN1 functionality with a table driven
1972 encoder and decoder which interprets an ASN1_ITEM structure describing
1973 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
1974 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
1975 has also been converted to the new form.
1978 *) Change BN_mod_exp_recp so that negative moduli are tolerated
1979 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
1980 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
1981 for negative moduli.
1984 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
1985 of not touching the result's sign bit.
1988 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
1992 *) Changed the LHASH code to use prototypes for callbacks, and created
1993 macros to declare and implement thin (optionally static) functions
1994 that provide type-safety and avoid function pointer casting for the
1995 type-specific callbacks.
1998 *) Added Kerberos Cipher Suites to be used with TLS, as written in
2000 [Veers Staats <staatsvr@asc.hpc.mil>,
2001 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
2003 *) Reformat the FAQ so the different questions and answers can be divided
2004 in sections depending on the subject.
2007 *) Have the zlib compression code load ZLIB.DLL dynamically under
2011 *) New function BN_mod_sqrt for computing square roots modulo a prime
2012 (using the probabilistic Tonelli-Shanks algorithm unless
2013 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
2014 be handled deterministically).
2015 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
2017 *) Make BN_mod_inverse faster by explicitly handling small quotients
2018 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
2019 512 bits], about 30% for larger ones [1024 or 2048 bits].)
2022 *) New function BN_kronecker.
2025 *) Fix BN_gcd so that it works on negative inputs; the result is
2026 positive unless both parameters are zero.
2027 Previously something reasonably close to an infinite loop was
2028 possible because numbers could be growing instead of shrinking
2029 in the implementation of Euclid's algorithm.
2032 *) Fix BN_is_word() and BN_is_one() macros to take into account the
2033 sign of the number in question.
2035 Fix BN_is_word(a,w) to work correctly for w == 0.
2037 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
2038 because its test if the absolute value of 'a' equals 'w'.
2039 Note that BN_abs_is_word does *not* handle w == 0 reliably;
2040 it exists mostly for use in the implementations of BN_is_zero(),
2041 BN_is_one(), and BN_is_word().
2044 *) New function BN_swap.
2047 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
2048 the exponentiation functions are more likely to produce reasonable
2049 results on negative inputs.
2052 *) Change BN_mod_mul so that the result is always non-negative.
2053 Previously, it could be negative if one of the factors was negative;
2054 I don't think anyone really wanted that behaviour.
2057 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
2058 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
2059 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
2060 and add new functions:
2069 BN_mod_lshift1_quick
2073 These functions always generate non-negative results.
2075 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
2076 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
2078 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
2079 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
2080 be reduced modulo m.
2081 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
2083 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
2084 was actually never needed) and in BN_mul(). The removal in BN_mul()
2085 required a small change in bn_mul_part_recursive() and the addition
2086 of the functions bn_cmp_part_words(), bn_sub_part_words() and
2087 bn_add_part_words(), which do the same thing as bn_cmp_words(),
2088 bn_sub_words() and bn_add_words() except they take arrays with
2092 *) In 'openssl passwd', verify passwords read from the terminal
2093 unless the '-salt' option is used (which usually means that
2094 verification would just waste user's time since the resulting
2095 hash is going to be compared with some given password hash)
2096 or the new '-noverify' option is used.
2098 This is an incompatible change, but it does not affect
2099 non-interactive use of 'openssl passwd' (passwords on the command
2100 line, '-stdin' option, '-in ...' option) and thus should not
2104 *) Remove all references to RSAref, since there's no more need for it.
2107 *) Make DSO load along a path given through an environment variable
2108 (SHLIB_PATH) with shl_load().
2111 *) Constify the ENGINE code as a result of BIGNUM constification.
2112 Also constify the RSA code and most things related to it. In a
2113 few places, most notable in the depth of the ASN.1 code, ugly
2114 casts back to non-const were required (to be solved at a later
2118 *) Make it so the openssl application has all engines loaded by default.
2121 *) Constify the BIGNUM routines a little more.
2124 *) Add the following functions:
2126 ENGINE_load_cswift()
2128 ENGINE_load_atalla()
2130 ENGINE_load_builtin_engines()
2132 That way, an application can itself choose if external engines that
2133 are built-in in OpenSSL shall ever be used or not. The benefit is
2134 that applications won't have to be linked with libdl or other dso
2135 libraries unless it's really needed.
2137 Changed 'openssl engine' to load all engines on demand.
2138 Changed the engine header files to avoid the duplication of some
2139 declarations (they differed!).
2142 *) 'openssl engine' can now list capabilities.
2145 *) Better error reporting in 'openssl engine'.
2148 *) Never call load_dh_param(NULL) in s_server.
2151 *) Add engine application. It can currently list engines by name and
2152 identity, and test if they are actually available.
2155 *) Improve RPM specification file by forcing symbolic linking and making
2156 sure the installed documentation is also owned by root.root.
2157 [Damien Miller <djm@mindrot.org>]
2159 *) Give the OpenSSL applications more possibilities to make use of
2160 keys (public as well as private) handled by engines.
2163 *) Add OCSP code that comes from CertCo.
2166 *) Add VMS support for the Rijndael code.
2169 *) Added untested support for Nuron crypto accelerator.
2172 *) Add support for external cryptographic devices. This code was
2173 previously distributed separately as the "engine" branch.
2174 [Geoff Thorpe, Richard Levitte]
2176 *) Rework the filename-translation in the DSO code. It is now possible to
2177 have far greater control over how a "name" is turned into a filename
2178 depending on the operating environment and any oddities about the
2179 different shared library filenames on each system.
2182 *) Support threads on FreeBSD-elf in Configure.
2185 *) Fix for SHA1 assembly problem with MASM: it produces
2186 warnings about corrupt line number information when assembling
2187 with debugging information. This is caused by the overlapping
2189 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
2192 NCONF_get_number() has no error checking at all. As a replacement,
2193 NCONF_get_number_e() is defined (_e for "error checking") and is
2194 promoted strongly. The old NCONF_get_number is kept around for
2195 binary backward compatibility.
2196 Make it possible for methods to load from something other than a BIO,
2197 by providing a function pointer that is given a name instead of a BIO.
2198 For example, this could be used to load configuration data from an
2202 *) Fix for non blocking accept BIOs. Added new I/O special reason
2203 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
2204 with non blocking I/O was not possible because no retry code was
2205 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
2209 *) Added the beginnings of Rijndael support.
2212 *) Fix for bug in DirectoryString mask setting. Add support for
2213 X509_NAME_print_ex() in 'req' and X509_print_ex() function
2214 to allow certificate printing to more controllable, additional
2215 'certopt' option to 'x509' to allow new printing options to be
2219 *) Clean old EAY MD5 hack from e_os.h.
2222 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
2224 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
2225 memory from it's contents. This is done with a counter that will
2226 place alternating values in each byte. This can be used to solve
2227 two issues: 1) the removal of calls to memset() by highly optimizing
2228 compilers, and 2) cleansing with other values than 0, since those can
2229 be read through on certain media, for example a swap space on disk.
2232 *) Bugfix: client side session caching did not work with external caching,
2233 because the session->cipher setting was not restored when reloading
2234 from the external cache. This problem was masked, when
2235 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
2236 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
2239 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
2240 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
2241 [Zeev Lieber <zeev-l@yahoo.com>]
2243 *) Undo an undocumented change introduced in 0.9.6e which caused
2244 repeated calls to OpenSSL_add_all_ciphers() and
2245 OpenSSL_add_all_digests() to be ignored, even after calling
2249 *) Change the default configuration reader to deal with last line not
2250 being properly terminated.
2253 *) Change X509_NAME_cmp() so it applies the special rules on handling
2254 DN values that are of type PrintableString, as well as RDNs of type
2255 emailAddress where the value has the type ia5String.
2256 [stefank@valicert.com via Richard Levitte]
2258 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
2259 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
2260 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
2261 the bitwise-OR of the two for use by the majority of applications
2262 wanting this behaviour, and update the docs. The documented
2263 behaviour and actual behaviour were inconsistent and had been
2264 changing anyway, so this is more a bug-fix than a behavioural
2266 [Geoff Thorpe, diagnosed by Nadav Har'El]
2268 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
2269 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
2272 *) Fix initialization code race conditions in
2273 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
2274 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
2275 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
2276 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
2277 ssl2_get_cipher_by_char(),
2278 ssl3_get_cipher_by_char().
2279 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
2281 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
2282 the cached sessions are flushed, as the remove_cb() might use ex_data
2283 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
2284 (see [openssl.org #212]).
2285 [Geoff Thorpe, Lutz Jaenicke]
2287 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
2288 length, instead of the encoding length to d2i_ASN1_OBJECT.
2291 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
2293 *) [In 0.9.6g-engine release:]
2294 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
2295 [Lynn Gazis <lgazis@rainbow.com>]
2297 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
2299 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
2300 and get fix the header length calculation.
2301 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
2302 Alon Kantor <alonk@checkpoint.com> (and others),
2305 *) Use proper error handling instead of 'assertions' in buffer
2306 overflow checks added in 0.9.6e. This prevents DoS (the
2307 assertions could call abort()).
2308 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
2310 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
2312 *) Add various sanity checks to asn1_get_length() to reject
2313 the ASN1 length bytes if they exceed sizeof(long), will appear
2314 negative or the content length exceeds the length of the
2316 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
2318 *) Fix cipher selection routines: ciphers without encryption had no flags
2319 for the cipher strength set and where therefore not handled correctly
2320 by the selection routines (PR #130).
2323 *) Fix EVP_dsa_sha macro.
2327 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
2328 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
2329 that was added in OpenSSL 0.9.6d.
2331 As the countermeasure turned out to be incompatible with some
2332 broken SSL implementations, the new option is part of SSL_OP_ALL.
2333 SSL_OP_ALL is usually employed when compatibility with weird SSL
2334 implementations is desired (e.g. '-bugs' option to 's_client' and
2335 's_server'), so the new option is automatically set in many
2339 *) Changes in security patch:
2341 Changes marked "(CHATS)" were sponsored by the Defense Advanced
2342 Research Projects Agency (DARPA) and Air Force Research Laboratory,
2343 Air Force Materiel Command, USAF, under agreement number
2346 *) Add various sanity checks to asn1_get_length() to reject
2347 the ASN1 length bytes if they exceed sizeof(long), will appear
2348 negative or the content length exceeds the length of the
2349 supplied buffer. (CAN-2002-0659)
2350 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
2352 *) Assertions for various potential buffer overflows, not known to
2354 [Ben Laurie (CHATS)]
2356 *) Various temporary buffers to hold ASCII versions of integers were
2357 too small for 64 bit platforms. (CAN-2002-0655)
2358 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
2360 *) Remote buffer overflow in SSL3 protocol - an attacker could
2361 supply an oversized session ID to a client. (CAN-2002-0656)
2362 [Ben Laurie (CHATS)]
2364 *) Remote buffer overflow in SSL2 protocol - an attacker could
2365 supply an oversized client master key. (CAN-2002-0656)
2366 [Ben Laurie (CHATS)]
2368 Changes between 0.9.6c and 0.9.6d [9 May 2002]
2370 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
2371 encoded as NULL) with id-dsa-with-sha1.
2372 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
2374 *) Check various X509_...() return values in apps/req.c.
2375 [Nils Larsch <nla@trustcenter.de>]
2377 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
2378 an end-of-file condition would erronously be flagged, when the CRLF
2379 was just at the end of a processed block. The bug was discovered when
2380 processing data through a buffering memory BIO handing the data to a
2381 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
2382 <ptsekov@syntrex.com> and Nedelcho Stanev.
2385 *) Implement a countermeasure against a vulnerability recently found
2386 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
2387 before application data chunks to avoid the use of known IVs
2388 with data potentially chosen by the attacker.
2391 *) Fix length checks in ssl3_get_client_hello().
2394 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
2395 to prevent ssl3_read_internal() from incorrectly assuming that
2396 ssl3_read_bytes() found application data while handshake
2397 processing was enabled when in fact s->s3->in_read_app_data was
2398 merely automatically cleared during the initial handshake.
2399 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
2401 *) Fix object definitions for Private and Enterprise: they were not
2402 recognized in their shortname (=lowercase) representation. Extend
2403 obj_dat.pl to issue an error when using undefined keywords instead
2404 of silently ignoring the problem (Svenning Sorensen
2405 <sss@sss.dnsalias.net>).
2408 *) Fix DH_generate_parameters() so that it works for 'non-standard'
2409 generators, i.e. generators other than 2 and 5. (Previously, the
2410 code did not properly initialise the 'add' and 'rem' values to
2411 BN_generate_prime().)
2413 In the new general case, we do not insist that 'generator' is
2414 actually a primitive root: This requirement is rather pointless;
2415 a generator of the order-q subgroup is just as good, if not
2419 *) Map new X509 verification errors to alerts. Discovered and submitted by
2420 Tom Wu <tom@arcot.com>.
2423 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
2424 returning non-zero before the data has been completely received
2425 when using non-blocking I/O.
2426 [Bodo Moeller; problem pointed out by John Hughes]
2428 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
2429 [Ben Laurie, Lutz Jaenicke]
2431 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
2432 Yoram Zahavi <YoramZ@gilian.com>).
2435 *) Add information about CygWin 1.3 and on, and preserve proper
2436 configuration for the versions before that.
2437 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
2439 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
2440 check whether we deal with a copy of a session and do not delete from
2441 the cache in this case. Problem reported by "Izhar Shoshani Levi"
2442 <izhar@checkpoint.com>.
2445 *) Do not store session data into the internal session cache, if it
2446 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
2447 flag is set). Proposed by Aslam <aslam@funk.com>.
2450 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
2454 *) [In 0.9.6d-engine release:]
2455 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
2456 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2458 *) Add the configuration target linux-s390x.
2459 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
2461 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
2462 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
2463 variable as an indication that a ClientHello message has been
2464 received. As the flag value will be lost between multiple
2465 invocations of ssl3_accept when using non-blocking I/O, the
2466 function may not be aware that a handshake has actually taken
2467 place, thus preventing a new session from being added to the
2470 To avoid this problem, we now set s->new_session to 2 instead of
2471 using a local variable.
2472 [Lutz Jaenicke, Bodo Moeller]
2474 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
2475 if the SSL_R_LENGTH_MISMATCH error is detected.
2476 [Geoff Thorpe, Bodo Moeller]
2478 *) New 'shared_ldflag' column in Configure platform table.
2481 *) Fix EVP_CIPHER_mode macro.
2482 ["Dan S. Camper" <dan@bti.net>]
2484 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
2485 type, we must throw them away by setting rr->length to 0.
2486 [D P Chang <dpc@qualys.com>]
2488 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
2490 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
2491 <Dominikus.Scherkl@biodata.com>. (The previous implementation
2492 worked incorrectly for those cases where range = 10..._2 and
2493 3*range is two bits longer than range.)
2496 *) Only add signing time to PKCS7 structures if it is not already
2500 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
2501 OBJ_ld_ce should be OBJ_id_ce.
2502 Also some ip-pda OIDs in crypto/objects/objects.txt were
2503 incorrect (cf. RFC 3039).
2504 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
2506 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
2507 returns early because it has nothing to do.
2508 [Andy Schneider <andy.schneider@bjss.co.uk>]
2510 *) [In 0.9.6c-engine release:]
2511 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
2512 [Andy Schneider <andy.schneider@bjss.co.uk>]
2514 *) [In 0.9.6c-engine release:]
2515 Add support for Cryptographic Appliance's keyserver technology.
2516 (Use engine 'keyclient')
2517 [Cryptographic Appliances and Geoff Thorpe]
2519 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
2520 is called via tools/c89.sh because arguments have to be
2521 rearranged (all '-L' options must appear before the first object
2523 [Richard Shapiro <rshapiro@abinitio.com>]
2525 *) [In 0.9.6c-engine release:]
2526 Add support for Broadcom crypto accelerator cards, backported
2528 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
2530 *) [In 0.9.6c-engine release:]
2531 Add support for SureWare crypto accelerator cards from
2532 Baltimore Technologies. (Use engine 'sureware')
2533 [Baltimore Technologies and Mark Cox]
2535 *) [In 0.9.6c-engine release:]
2536 Add support for crypto accelerator cards from Accelerated
2537 Encryption Processing, www.aep.ie. (Use engine 'aep')
2538 [AEP Inc. and Mark Cox]
2540 *) Add a configuration entry for gcc on UnixWare.
2541 [Gary Benson <gbenson@redhat.com>]
2543 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
2544 messages are stored in a single piece (fixed-length part and
2545 variable-length part combined) and fix various bugs found on the way.
2548 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
2549 instead. BIO_gethostbyname() does not know what timeouts are
2550 appropriate, so entries would stay in cache even when they have
2552 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
2554 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
2555 faced with a pathologically small ClientHello fragment that does
2556 not contain client_version: Instead of aborting with an error,
2557 simply choose the highest available protocol version (i.e.,
2558 TLS 1.0 unless it is disabled). In practice, ClientHello
2559 messages are never sent like this, but this change gives us
2560 strictly correct behaviour at least for TLS.
2563 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
2564 never resets s->method to s->ctx->method when called from within
2565 one of the SSL handshake functions.
2566 [Bodo Moeller; problem pointed out by Niko Baric]
2568 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
2569 (sent using the client's version number) if client_version is
2570 smaller than the protocol version in use. Also change
2571 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
2572 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
2573 the client will at least see that alert.
2576 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
2580 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
2581 client receives HelloRequest while in a handshake.
2582 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
2584 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
2585 should end in 'break', not 'goto end' which circuments various
2586 cleanups done in state SSL_ST_OK. But session related stuff
2587 must be disabled for SSL_ST_OK in the case that we just sent a
2590 Also avoid some overhead by not calling ssl_init_wbio_buffer()
2591 before just sending a HelloRequest.
2592 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
2594 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
2595 reveal whether illegal block cipher padding was found or a MAC
2596 verification error occured. (Neither SSLerr() codes nor alerts
2597 are directly visible to potential attackers, but the information
2598 may leak via logfiles.)
2600 Similar changes are not required for the SSL 2.0 implementation
2601 because the number of padding bytes is sent in clear for SSL 2.0,
2602 and the extra bytes are just ignored. However ssl/s2_pkt.c
2603 failed to verify that the purported number of padding bytes is in
2607 *) Add OpenUNIX-8 support including shared libraries
2608 (Boyd Lynn Gerber <gerberb@zenez.com>).
2611 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
2612 'wristwatch attack' using huge encoding parameters (cf.
2613 James H. Manger's CRYPTO 2001 paper). Note that the
2614 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
2615 encoding parameters and hence was not vulnerable.
2618 *) BN_sqr() bug fix.
2619 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
2621 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
2622 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
2623 followed by modular reduction.
2624 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
2626 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
2627 equivalent based on BN_pseudo_rand() instead of BN_rand().
2630 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
2631 This function was broken, as the check for a new client hello message
2632 to handle SGC did not allow these large messages.
2633 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
2636 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
2639 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
2640 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
2643 *) Rework the configuration and shared library support for Tru64 Unix.
2644 The configuration part makes use of modern compiler features and
2645 still retains old compiler behavior for those that run older versions
2646 of the OS. The shared library support part includes a variant that
2647 uses the RPATH feature, and is available through the special
2648 configuration target "alpha-cc-rpath", which will never be selected
2650 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
2652 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
2653 with the same message size as in ssl3_get_certificate_request().
2654 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
2655 messages might inadvertently be reject as too long.
2656 [Petr Lampa <lampa@fee.vutbr.cz>]
2658 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
2661 *) Modified SSL library such that the verify_callback that has been set
2662 specificly for an SSL object with SSL_set_verify() is actually being
2663 used. Before the change, a verify_callback set with this function was
2664 ignored and the verify_callback() set in the SSL_CTX at the time of
2665 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
2666 to allow the necessary settings.
2669 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
2670 explicitly to NULL, as at least on Solaris 8 this seems not always to be
2671 done automatically (in contradiction to the requirements of the C
2672 standard). This made problems when used from OpenSSH.
2675 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
2676 dh->length and always used
2678 BN_rand_range(priv_key, dh->p).
2680 BN_rand_range() is not necessary for Diffie-Hellman, and this
2681 specific range makes Diffie-Hellman unnecessarily inefficient if
2682 dh->length (recommended exponent length) is much smaller than the
2683 length of dh->p. We could use BN_rand_range() if the order of
2684 the subgroup was stored in the DH structure, but we only have
2689 BN_rand(priv_key, l, ...)
2691 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
2697 RSA_eay_public_encrypt
2698 RSA_eay_private_decrypt
2699 RSA_eay_private_encrypt (signing)
2700 RSA_eay_public_decrypt (signature verification)
2702 (default implementations for RSA_public_encrypt,
2703 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
2704 always reject numbers >= n.
2707 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
2708 to synchronize access to 'locking_thread'. This is necessary on
2709 systems where access to 'locking_thread' (an 'unsigned long'
2710 variable) is not atomic.
2713 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
2714 *before* setting the 'crypto_lock_rand' flag. The previous code had
2715 a race condition if 0 is a valid thread ID.
2716 [Travis Vitek <vitek@roguewave.com>]
2718 *) Add support for shared libraries under Irix.
2719 [Albert Chin-A-Young <china@thewrittenword.com>]
2721 *) Add configuration option to build on Linux on both big-endian and
2723 [Ralf Baechle <ralf@uni-koblenz.de>]
2725 *) Add the possibility to create shared libraries on HP-UX.
2728 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
2730 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
2731 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
2732 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
2733 PRNG state recovery was possible based on the output of
2734 one PRNG request appropriately sized to gain knowledge on
2735 'md' followed by enough consecutive 1-byte PRNG requests
2736 to traverse all of 'state'.
2738 1. When updating 'md_local' (the current thread's copy of 'md')
2739 during PRNG output generation, hash all of the previous
2740 'md_local' value, not just the half used for PRNG output.
2742 2. Make the number of bytes from 'state' included into the hash
2743 independent from the number of PRNG bytes requested.
2745 The first measure alone would be sufficient to avoid
2746 Markku-Juhani's attack. (Actually it had never occurred
2747 to me that the half of 'md_local' used for chaining was the
2748 half from which PRNG output bytes were taken -- I had always
2749 assumed that the secret half would be used.) The second
2750 measure makes sure that additional data from 'state' is never
2751 mixed into 'md_local' in small portions; this heuristically
2752 further strengthens the PRNG.
2755 *) Fix crypto/bn/asm/mips3.s.
2758 *) When only the key is given to "enc", the IV is undefined. Print out
2759 an error message in this case.
2762 *) Handle special case when X509_NAME is empty in X509 printing routines.
2765 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
2766 positive and less than q.
2769 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
2770 used: it isn't thread safe and the add_lock_callback should handle
2772 [Paul Rose <Paul.Rose@bridge.com>]
2774 *) Verify that incoming data obeys the block size in
2775 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
2779 [Ulf Möller, Bodo Möller]
2781 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
2782 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
2783 when fixing the server behaviour for backwards-compatible 'client
2784 hello' messages. (Note that the attack is impractical against
2785 SSL 3.0 and TLS 1.0 anyway because length and version checking
2786 means that the probability of guessing a valid ciphertext is
2787 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
2790 Before 0.9.5, the countermeasure (hide the error by generating a
2791 random 'decryption result') did not work properly because
2792 ERR_clear_error() was missing, meaning that SSL_get_error() would
2793 detect the supposedly ignored error.
2795 Both problems are now fixed.
2798 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
2799 (previously it was 1024).
2802 *) Fix for compatibility mode trust settings: ignore trust settings
2803 unless some valid trust or reject settings are present.
2806 *) Fix for blowfish EVP: its a variable length cipher.
2809 *) Fix various bugs related to DSA S/MIME verification. Handle missing
2810 parameters in DSA public key structures and return an error in the
2811 DSA routines if parameters are absent.
2814 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
2815 in the current directory if neither $RANDFILE nor $HOME was set.
2816 RAND_file_name() in 0.9.6a returned NULL in this case. This has
2817 caused some confusion to Windows users who haven't defined $HOME.
2818 Thus RAND_file_name() is changed again: e_os.h can define a
2819 DEFAULT_HOME, which will be used if $HOME is not set.
2820 For Windows, we use "C:"; on other platforms, we still require
2821 environment variables.
2823 *) Move 'if (!initialized) RAND_poll()' into regions protected by
2824 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
2825 having multiple threads call RAND_poll() concurrently.
2828 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
2829 combination of a flag and a thread ID variable.
2830 Otherwise while one thread is in ssleay_rand_bytes (which sets the
2831 flag), *other* threads can enter ssleay_add_bytes without obeying
2832 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
2833 that they do not hold after the first thread unsets add_do_not_lock).
2836 *) Change bctest again: '-x' expressions are not available in all
2840 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
2842 *) Fix a couple of memory leaks in PKCS7_dataDecode()
2843 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
2845 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
2846 the default extension for executables, if any. Also, make the perl
2847 scripts that use symlink() to test if it really exists and use "cp"
2848 if it doesn't. All this made OpenSSL compilable and installable in
2852 *) Fix for asn1_GetSequence() for indefinite length constructed data.
2853 If SEQUENCE is length is indefinite just set c->slen to the total
2854 amount of data available.
2855 [Steve Henson, reported by shige@FreeBSD.org]
2856 [This change does not apply to 0.9.7.]
2858 *) Change bctest to avoid here-documents inside command substitution
2859 (workaround for FreeBSD /bin/sh bug).
2860 For compatibility with Ultrix, avoid shell functions (introduced
2861 in the bctest version that searches along $PATH).
2864 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
2865 with des_encrypt() defined on some operating systems, like Solaris
2869 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
2870 On the Importance of Eliminating Errors in Cryptographic
2871 Computations, J. Cryptology 14 (2001) 2, 101-119,
2872 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
2875 *) MIPS assembler BIGNUM division bug fix.
2878 *) Disabled incorrect Alpha assembler code.
2881 *) Fix PKCS#7 decode routines so they correctly update the length
2882 after reading an EOC for the EXPLICIT tag.
2884 [This change does not apply to 0.9.7.]
2886 *) Fix bug in PKCS#12 key generation routines. This was triggered
2887 if a 3DES key was generated with a 0 initial byte. Include
2888 PKCS12_BROKEN_KEYGEN compilation option to retain the old
2889 (but broken) behaviour.
2892 *) Enhance bctest to search for a working bc along $PATH and print
2894 [Tim Rice <tim@multitalents.net> via Richard Levitte]
2896 *) Fix memory leaks in err.c: free err_data string if necessary;
2897 don't write to the wrong index in ERR_set_error_data.
2900 *) Implement ssl23_peek (analogous to ssl23_read), which previously
2904 *) Replace rdtsc with _emit statements for VC++ version 5.
2905 [Jeremy Cooper <jeremy@baymoo.org>]
2907 *) Make it possible to reuse SSLv2 sessions.
2910 *) In copy_email() check for >= 0 as a return value for
2911 X509_NAME_get_index_by_NID() since 0 is a valid index.
2912 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
2914 *) Avoid coredump with unsupported or invalid public keys by checking if
2915 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
2916 PKCS7_verify() fails with non detached data.
2919 *) Don't use getenv in library functions when run as setuid/setgid.
2920 New function OPENSSL_issetugid().
2923 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
2924 due to incorrect handling of multi-threading:
2926 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
2928 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
2930 3. Count how many times MemCheck_off() has been called so that
2931 nested use can be treated correctly. This also avoids
2932 inband-signalling in the previous code (which relied on the
2933 assumption that thread ID 0 is impossible).
2936 *) Add "-rand" option also to s_client and s_server.
2939 *) Fix CPU detection on Irix 6.x.
2940 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
2941 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
2943 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
2946 [This change does not apply to 0.9.7.]
2948 *) Use the cached encoding of an X509_NAME structure rather than
2949 copying it. This is apparently the reason for the libsafe "errors"
2950 but the code is actually correct.
2953 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
2954 Bleichenbacher's DSA attack.
2955 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
2956 to be set and top=0 forces the highest bit to be set; top=-1 is new
2957 and leaves the highest bit random.
2958 [Ulf Moeller, Bodo Moeller]
2960 *) In the NCONF_...-based implementations for CONF_... queries
2961 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
2962 a temporary CONF structure with the data component set to NULL
2963 (which gives segmentation faults in lh_retrieve).
2964 Instead, use NULL for the CONF pointer in CONF_get_string and
2965 CONF_get_number (which may use environment variables) and directly
2966 return NULL from CONF_get_section.
2969 *) Fix potential buffer overrun for EBCDIC.
2972 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
2973 keyUsage if basicConstraints absent for a CA.
2976 *) Make SMIME_write_PKCS7() write mail header values with a format that
2977 is more generally accepted (no spaces before the semicolon), since
2978 some programs can't parse those values properly otherwise. Also make
2979 sure BIO's that break lines after each write do not create invalid
2983 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
2984 macros previously used would not encode an empty SEQUENCE OF
2985 and break the signature.
2987 [This change does not apply to 0.9.7.]
2989 *) Zero the premaster secret after deriving the master secret in
2993 *) Add some EVP_add_digest_alias registrations (as found in
2994 OpenSSL_add_all_digests()) to SSL_library_init()
2995 aka OpenSSL_add_ssl_algorithms(). This provides improved
2996 compatibility with peers using X.509 certificates
2997 with unconventional AlgorithmIdentifier OIDs.
3000 *) Fix for Irix with NO_ASM.
3001 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
3003 *) ./config script fixes.
3004 [Ulf Moeller, Richard Levitte]
3006 *) Fix 'openssl passwd -1'.
3009 *) Change PKCS12_key_gen_asc() so it can cope with non null
3010 terminated strings whose length is passed in the passlen
3011 parameter, for example from PEM callbacks. This was done
3012 by adding an extra length parameter to asc2uni().
3013 [Steve Henson, reported by <oddissey@samsung.co.kr>]
3015 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
3016 call failed, free the DSA structure.
3019 *) Fix to uni2asc() to cope with zero length Unicode strings.
3020 These are present in some PKCS#12 files.
3023 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
3024 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
3025 when writing a 32767 byte record.
3026 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
3028 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
3029 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
3031 (RSA objects have a reference count access to which is protected
3032 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
3033 so they are meant to be shared between threads.)
3034 [Bodo Moeller, Geoff Thorpe; original patch submitted by
3035 "Reddie, Steven" <Steven.Reddie@ca.com>]
3037 *) Fix a deadlock in CRYPTO_mem_leaks().
3040 *) Use better test patterns in bntest.
3043 *) rand_win.c fix for Borland C.
3046 *) BN_rshift bugfix for n == 0.
3049 *) Add a 'bctest' script that checks for some known 'bc' bugs
3050 so that 'make test' does not abort just because 'bc' is broken.
3053 *) Store verify_result within SSL_SESSION also for client side to
3054 avoid potential security hole. (Re-used sessions on the client side
3055 always resulted in verify_result==X509_V_OK, not using the original
3056 result of the server certificate verification.)
3059 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
3060 SSL3_RT_APPLICATION_DATA, return 0.
3061 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
3065 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
3066 releases, have been re-implemented by renaming the previous
3067 implementations of ssl2_read and ssl3_read to ssl2_read_internal
3068 and ssl3_read_internal, respectively, and adding 'peek' parameters
3069 to them. The new ssl[23]_{read,peek} functions are calls to
3070 ssl[23]_read_internal with the 'peek' flag set appropriately.
3071 A 'peek' parameter has also been added to ssl3_read_bytes, which
3072 does the actual work for ssl3_read_internal.
3075 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
3076 the method-specific "init()" handler. Also clean up ex_data after
3077 calling the method-specific "finish()" handler. Previously, this was
3078 happening the other way round.
3081 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
3082 The previous value, 12, was not always sufficient for BN_mod_exp().
3085 *) Make sure that shared libraries get the internal name engine with
3086 the full version number and not just 0. This should mark the
3087 shared libraries as not backward compatible. Of course, this should
3088 be changed again when we can guarantee backward binary compatibility.
3091 *) Fix typo in get_cert_by_subject() in by_dir.c
3092 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
3094 *) Rework the system to generate shared libraries:
3096 - Make note of the expected extension for the shared libraries and
3097 if there is a need for symbolic links from for example libcrypto.so.0
3098 to libcrypto.so.0.9.7. There is extended info in Configure for
3101 - Make as few rebuilds of the shared libraries as possible.
3103 - Still avoid linking the OpenSSL programs with the shared libraries.
3105 - When installing, install the shared libraries separately from the
3109 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
3111 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
3112 and not in SSL_clear because the latter is also used by the
3113 accept/connect functions; previously, the settings made by
3114 SSL_set_read_ahead would be lost during the handshake.
3115 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
3117 *) Correct util/mkdef.pl to be selective about disabled algorithms.
3118 Previously, it would create entries for disableed algorithms no
3122 *) Added several new manual pages for SSL_* function.
3125 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
3127 *) In ssl23_get_client_hello, generate an error message when faced
3128 with an initial SSL 3.0/TLS record that is too small to contain the
3129 first two bytes of the ClientHello message, i.e. client_version.
3130 (Note that this is a pathologic case that probably has never happened
3131 in real life.) The previous approach was to use the version number
3132 from the record header as a substitute; but our protocol choice
3133 should not depend on that one because it is not authenticated
3134 by the Finished messages.
3137 *) More robust randomness gathering functions for Windows.
3138 [Jeffrey Altman <jaltman@columbia.edu>]
3140 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
3141 not set then we don't setup the error code for issuer check errors
3142 to avoid possibly overwriting other errors which the callback does
3143 handle. If an application does set the flag then we assume it knows
3144 what it is doing and can handle the new informational codes
3148 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
3149 a general "ANY" type, as such it should be able to decode anything
3150 including tagged types. However it didn't check the class so it would
3151 wrongly interpret tagged types in the same way as their universal
3152 counterpart and unknown types were just rejected. Changed so that the
3153 tagged and unknown types are handled in the same way as a SEQUENCE:
3154 that is the encoding is stored intact. There is also a new type
3155 "V_ASN1_OTHER" which is used when the class is not universal, in this
3156 case we have no idea what the actual type is so we just lump them all
3160 *) On VMS, stdout may very well lead to a file that is written to
3161 in a record-oriented fashion. That means that every write() will
3162 write a separate record, which will be read separately by the
3163 programs trying to read from it. This can be very confusing.
3165 The solution is to put a BIO filter in the way that will buffer
3166 text until a linefeed is reached, and then write everything a
3167 line at a time, so every record written will be an actual line,
3168 not chunks of lines and not (usually doesn't happen, but I've
3169 seen it once) several lines in one record. BIO_f_linebuffer() is
3172 Currently, it's a VMS-only method, because that's where it has
3173 been tested well enough.
3176 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
3177 it can return incorrect results.
3178 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
3179 but it was in 0.9.6-beta[12].)
3182 *) Disable the check for content being present when verifying detached
3183 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
3184 include zero length content when signing messages.
3187 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
3188 BIO_ctrl (for BIO pairs).
3191 *) Add DSO method for VMS.
3194 *) Bug fix: Montgomery multiplication could produce results with the
3198 *) Add RPM specification openssl.spec and modify it to build three
3199 packages. The default package contains applications, application
3200 documentation and run-time libraries. The devel package contains
3201 include files, static libraries and function documentation. The
3202 doc package contains the contents of the doc directory. The original
3203 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
3206 *) Add a large number of documentation files for many SSL routines.
3207 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
3209 *) Add a configuration entry for Sony News 4.
3210 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
3212 *) Don't set the two most significant bits to one when generating a
3213 random number < q in the DSA library.
3216 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
3217 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
3218 the underlying transport is blocking) if a handshake took place.
3219 (The default behaviour is needed by applications such as s_client
3220 and s_server that use select() to determine when to use SSL_read;
3221 but for applications that know in advance when to expect data, it
3222 just makes things more complicated.)
3225 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
3229 *) Add a few more EBCDIC conditionals that make `req' and `x509'
3230 work better on such systems.
3231 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
3233 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
3234 Update PKCS12_parse() so it copies the friendlyName and the
3235 keyid to the certificates aux info.
3238 *) Fix bug in PKCS7_verify() which caused an infinite loop
3239 if there was more than one signature.
3240 [Sven Uszpelkat <su@celocom.de>]
3242 *) Major change in util/mkdef.pl to include extra information
3243 about each symbol, as well as presentig variables as well
3244 as functions. This change means that there's n more need
3245 to rebuild the .num files when some algorithms are excluded.
3248 *) Allow the verify time to be set by an application,
3249 rather than always using the current time.
3252 *) Phase 2 verify code reorganisation. The certificate
3253 verify code now looks up an issuer certificate by a
3254 number of criteria: subject name, authority key id
3255 and key usage. It also verifies self signed certificates
3256 by the same criteria. The main comparison function is
3257 X509_check_issued() which performs these checks.
3259 Lot of changes were necessary in order to support this
3260 without completely rewriting the lookup code.
3262 Authority and subject key identifier are now cached.
3264 The LHASH 'certs' is X509_STORE has now been replaced
3265 by a STACK_OF(X509_OBJECT). This is mainly because an
3266 LHASH can't store or retrieve multiple objects with
3267 the same hash value.
3269 As a result various functions (which were all internal
3270 use only) have changed to handle the new X509_STORE
3271 structure. This will break anything that messed round
3272 with X509_STORE internally.
3274 The functions X509_STORE_add_cert() now checks for an
3275 exact match, rather than just subject name.
3277 The X509_STORE API doesn't directly support the retrieval
3278 of multiple certificates matching a given criteria, however
3279 this can be worked round by performing a lookup first
3280 (which will fill the cache with candidate certificates)
3281 and then examining the cache for matches. This is probably
3282 the best we can do without throwing out X509_LOOKUP
3283 entirely (maybe later...).
3285 The X509_VERIFY_CTX structure has been enhanced considerably.
3287 All certificate lookup operations now go via a get_issuer()
3288 callback. Although this currently uses an X509_STORE it
3289 can be replaced by custom lookups. This is a simple way
3290 to bypass the X509_STORE hackery necessary to make this
3291 work and makes it possible to use more efficient techniques
3292 in future. A very simple version which uses a simple
3293 STACK for its trusted certificate store is also provided
3294 using X509_STORE_CTX_trusted_stack().
3296 The verify_cb() and verify() callbacks now have equivalents
3297 in the X509_STORE_CTX structure.
3299 X509_STORE_CTX also has a 'flags' field which can be used
3300 to customise the verify behaviour.
3303 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
3304 excludes S/MIME capabilities.
3307 *) When a certificate request is read in keep a copy of the
3308 original encoding of the signed data and use it when outputing
3309 again. Signatures then use the original encoding rather than
3310 a decoded, encoded version which may cause problems if the
3311 request is improperly encoded.
3314 *) For consistency with other BIO_puts implementations, call
3315 buffer_write(b, ...) directly in buffer_puts instead of calling
3318 In BIO_puts, increment b->num_write as in BIO_write.
3319 [Peter.Sylvester@EdelWeb.fr]
3321 *) Fix BN_mul_word for the case where the word is 0. (We have to use
3322 BN_zero, we may not return a BIGNUM with an array consisting of
3326 *) Avoid calling abort() from within the library when problems are
3327 detected, except if preprocessor symbols have been defined
3328 (such as REF_CHECK, BN_DEBUG etc.).
3331 *) New openssl application 'rsautl'. This utility can be
3332 used for low level RSA operations. DER public key
3333 BIO/fp routines also added.
3336 *) New Configure entry and patches for compiling on QNX 4.
3337 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
3339 *) A demo state-machine implementation was sponsored by
3340 Nuron (http://www.nuron.com/) and is now available in
3341 demos/state_machine.
3344 *) New options added to the 'dgst' utility for signature
3345 generation and verification.
3348 *) Unrecognized PKCS#7 content types are now handled via a
3349 catch all ASN1_TYPE structure. This allows unsupported
3350 types to be stored as a "blob" and an application can
3351 encode and decode it manually.
3354 *) Fix various signed/unsigned issues to make a_strex.c
3356 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
3358 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
3359 length if passed a buffer. ASN1_INTEGER_to_BN failed
3360 if passed a NULL BN and its argument was negative.
3361 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
3363 *) Modification to PKCS#7 encoding routines to output definite
3364 length encoding. Since currently the whole structures are in
3365 memory there's not real point in using indefinite length
3366 constructed encoding. However if OpenSSL is compiled with
3367 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
3370 *) Added BIO_vprintf() and BIO_vsnprintf().
3373 *) Added more prefixes to parse for in the the strings written
3374 through a logging bio, to cover all the levels that are available
3375 through syslog. The prefixes are now:
3377 PANIC, EMERG, EMR => LOG_EMERG
3378 ALERT, ALR => LOG_ALERT
3379 CRIT, CRI => LOG_CRIT
3380 ERROR, ERR => LOG_ERR
3381 WARNING, WARN, WAR => LOG_WARNING
3382 NOTICE, NOTE, NOT => LOG_NOTICE
3383 INFO, INF => LOG_INFO
3384 DEBUG, DBG => LOG_DEBUG
3386 and as before, if none of those prefixes are present at the
3387 beginning of the string, LOG_ERR is chosen.
3389 On Win32, the LOG_* levels are mapped according to this:
3391 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
3392 LOG_WARNING => EVENTLOG_WARNING_TYPE
3393 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
3397 *) Made it possible to reconfigure with just the configuration
3398 argument "reconf" or "reconfigure". The command line arguments
3399 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
3400 and are retrieved from there when reconfiguring.
3404 [Assar Westerlund <assar@sics.se>, Richard Levitte]
3406 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
3409 *) The obj_dat.pl script was messing up the sorting of object
3410 names. The reason was that it compared the quoted version
3411 of strings as a result "OCSP" > "OCSP Signing" because
3412 " > SPACE. Changed script to store unquoted versions of
3413 names and add quotes on output. It was also omitting some
3414 names from the lookup table if they were given a default
3415 value (that is if SN is missing it is given the same
3416 value as LN and vice versa), these are now added on the
3417 grounds that if an object has a name we should be able to
3418 look it up. Finally added warning output when duplicate
3419 short or long names are found.
3422 *) Changes needed for Tandem NSK.
3423 [Scott Uroff <scott@xypro.com>]
3425 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
3426 RSA_padding_check_SSLv23(), special padding was never detected
3427 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
3428 version rollback attacks was not effective.
3430 In s23_clnt.c, don't use special rollback-attack detection padding
3431 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
3432 client; similarly, in s23_srvr.c, don't do the rollback check if
3433 SSL 2.0 is the only protocol enabled in the server.
3436 *) Make it possible to get hexdumps of unprintable data with 'openssl
3437 asn1parse'. By implication, the functions ASN1_parse_dump() and
3438 BIO_dump_indent() are added.
3441 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
3442 these print out strings and name structures based on various
3443 flags including RFC2253 support and proper handling of
3444 multibyte characters. Added options to the 'x509' utility
3445 to allow the various flags to be set.
3448 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
3449 Also change the functions X509_cmp_current_time() and
3450 X509_gmtime_adj() work with an ASN1_TIME structure,
3451 this will enable certificates using GeneralizedTime in validity
3452 dates to be checked.
3455 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
3456 negative public key encodings) on by default,
3457 NO_NEG_PUBKEY_BUG can be set to disable it.
3460 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
3461 content octets. An i2c_ASN1_OBJECT is unnecessary because
3462 the encoding can be trivially obtained from the structure.
3465 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
3466 not read locks (CRYPTO_r_[un]lock).
3469 *) A first attempt at creating official support for shared
3470 libraries through configuration. I've kept it so the
3471 default is static libraries only, and the OpenSSL programs
3472 are always statically linked for now, but there are
3473 preparations for dynamic linking in place.
3474 This has been tested on Linux and Tru64.
3477 *) Randomness polling function for Win9x, as described in:
3478 Peter Gutmann, Software Generation of Practically Strong
3482 *) Fix so PRNG is seeded in req if using an already existing
3486 *) New options to smime application. -inform and -outform
3487 allow alternative formats for the S/MIME message including
3488 PEM and DER. The -content option allows the content to be
3489 specified separately. This should allow things like Netscape
3490 form signing output easier to verify.
3493 *) Fix the ASN1 encoding of tags using the 'long form'.
3496 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
3497 STRING types. These convert content octets to and from the
3498 underlying type. The actual tag and length octets are
3499 already assumed to have been read in and checked. These
3500 are needed because all other string types have virtually
3501 identical handling apart from the tag. By having versions
3502 of the ASN1 functions that just operate on content octets
3503 IMPLICIT tagging can be handled properly. It also allows
3504 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
3505 and ASN1_INTEGER are identical apart from the tag.
3508 *) Change the handling of OID objects as follows:
3510 - New object identifiers are inserted in objects.txt, following
3511 the syntax given in objects.README.
3512 - objects.pl is used to process obj_mac.num and create a new
3514 - obj_dat.pl is used to create a new obj_dat.h, using the data in
3517 This is currently kind of a hack, and the perl code in objects.pl
3518 isn't very elegant, but it works as I intended. The simplest way
3519 to check that it worked correctly is to look in obj_dat.h and
3520 check the array nid_objs and make sure the objects haven't moved
3521 around (this is important!). Additions are OK, as well as
3522 consistent name changes.
3525 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
3528 *) Addition of the command line parameter '-rand file' to 'openssl req'.
3529 The given file adds to whatever has already been seeded into the
3530 random pool through the RANDFILE configuration file option or
3531 environment variable, or the default random state file.
3534 *) mkstack.pl now sorts each macro group into lexical order.
3535 Previously the output order depended on the order the files
3536 appeared in the directory, resulting in needless rewriting
3540 *) Patches to make OpenSSL compile under Win32 again. Mostly
3541 work arounds for the VC++ problem that it treats func() as
3542 func(void). Also stripped out the parts of mkdef.pl that
3543 added extra typesafe functions: these no longer exist.
3546 *) Reorganisation of the stack code. The macros are now all
3547 collected in safestack.h . Each macro is defined in terms of
3548 a "stack macro" of the form SKM_<name>(type, a, b). The
3549 DEBUG_SAFESTACK is now handled in terms of function casts,
3550 this has the advantage of retaining type safety without the
3551 use of additional functions. If DEBUG_SAFESTACK is not defined
3552 then the non typesafe macros are used instead. Also modified the
3553 mkstack.pl script to handle the new form. Needs testing to see
3554 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
3555 the default if no major problems. Similar behaviour for ASN1_SET_OF
3556 and PKCS12_STACK_OF.
3559 *) When some versions of IIS use the 'NET' form of private key the
3560 key derivation algorithm is different. Normally MD5(password) is
3561 used as a 128 bit RC4 key. In the modified case
3562 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
3563 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
3564 as the old Netscape_RSA functions except they have an additional
3565 'sgckey' parameter which uses the modified algorithm. Also added
3566 an -sgckey command line option to the rsa utility. Thanks to
3567 Adrian Peck <bertie@ncipher.com> for posting details of the modified
3568 algorithm to openssl-dev.
3571 *) The evp_local.h macros were using 'c.##kname' which resulted in
3572 invalid expansion on some systems (SCO 5.0.5 for example).
3573 Corrected to 'c.kname'.
3574 [Phillip Porch <root@theporch.com>]
3576 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
3577 a STACK of email addresses from a certificate or request, these look
3578 in the subject name and the subject alternative name extensions and
3579 omit any duplicate addresses.
3582 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
3583 This makes DSA verification about 2 % faster.
3586 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
3587 (meaning that now 2^5 values will be precomputed, which is only 4 KB
3588 plus overhead for 1024 bit moduli).
3589 This makes exponentiations about 0.5 % faster for 1024 bit
3590 exponents (as measured by "openssl speed rsa2048").
3593 *) Rename memory handling macros to avoid conflicts with other
3595 Malloc => OPENSSL_malloc
3596 Malloc_locked => OPENSSL_malloc_locked
3597 Realloc => OPENSSL_realloc
3598 Free => OPENSSL_free
3601 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
3602 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
3605 *) CygWin32 support.
3606 [John Jarvie <jjarvie@newsguy.com>]
3608 *) The type-safe stack code has been rejigged. It is now only compiled
3609 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
3610 by default all type-specific stack functions are "#define"d back to
3611 standard stack functions. This results in more streamlined output
3612 but retains the type-safety checking possibilities of the original
3616 *) The STACK code has been cleaned up, and certain type declarations
3617 that didn't make a lot of sense have been brought in line. This has
3618 also involved a cleanup of sorts in safestack.h to more correctly
3619 map type-safe stack functions onto their plain stack counterparts.
3620 This work has also resulted in a variety of "const"ifications of
3621 lots of the code, especially "_cmp" operations which should normally
3622 be prototyped with "const" parameters anyway.
3625 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
3626 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
3627 (The PRNG state consists of two parts, the large pool 'state' and 'md',
3628 where all of 'md' is used each time the PRNG is used, but 'state'
3629 is used only indexed by a cyclic counter. As entropy may not be
3630 well distributed from the beginning, 'md' is important as a
3631 chaining variable. However, the output function chains only half
3632 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
3633 all of 'md', and seeding with STATE_SIZE dummy bytes will result
3634 in all of 'state' being rewritten, with the new values depending
3635 on virtually all of 'md'. This overcomes the 80 bit limitation.)
3638 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
3639 the handshake is continued after ssl_verify_cert_chain();
3640 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
3641 can lead to 'unexplainable' connection aborts later.
3642 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
3644 *) Major EVP API cipher revision.
3645 Add hooks for extra EVP features. This allows various cipher
3646 parameters to be set in the EVP interface. Support added for variable
3647 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
3648 setting of RC2 and RC5 parameters.
3650 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
3653 Remove lots of duplicated code from the EVP library. For example *every*
3654 cipher init() function handles the 'iv' in the same way according to the
3655 cipher mode. They also all do nothing if the 'key' parameter is NULL and
3656 for CFB and OFB modes they zero ctx->num.
3658 New functionality allows removal of S/MIME code RC2 hack.
3660 Most of the routines have the same form and so can be declared in terms
3663 By shifting this to the top level EVP_CipherInit() it can be removed from
3664 all individual ciphers. If the cipher wants to handle IVs or keys
3665 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
3668 Change lots of functions like EVP_EncryptUpdate() to now return a
3669 value: although software versions of the algorithms cannot fail
3670 any installed hardware versions can.
3673 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
3674 this option is set, tolerate broken clients that send the negotiated
3675 protocol version number instead of the requested protocol version
3679 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
3680 i.e. non-zero for export ciphersuites, zero otherwise.
3681 Previous versions had this flag inverted, inconsistent with
3682 rsa_tmp_cb (..._TMP_RSA_CB).
3683 [Bodo Moeller; problem reported by Amit Chopra]
3685 *) Add missing DSA library text string. Work around for some IIS
3686 key files with invalid SEQUENCE encoding.
3689 *) Add a document (doc/standards.txt) that list all kinds of standards
3690 and so on that are implemented in OpenSSL.
3693 *) Enhance c_rehash script. Old version would mishandle certificates
3694 with the same subject name hash and wouldn't handle CRLs at all.
3695 Added -fingerprint option to crl utility, to support new c_rehash
3699 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
3702 *) Fix for SSL server purpose checking. Server checking was
3703 rejecting certificates which had extended key usage present
3704 but no ssl client purpose.
3705 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
3707 *) Make PKCS#12 code work with no password. The PKCS#12 spec
3708 is a little unclear about how a blank password is handled.
3709 Since the password in encoded as a BMPString with terminating
3710 double NULL a zero length password would end up as just the
3711 double NULL. However no password at all is different and is
3712 handled differently in the PKCS#12 key generation code. NS
3713 treats a blank password as zero length. MSIE treats it as no
3714 password on export: but it will try both on import. We now do
3715 the same: PKCS12_parse() tries zero length and no password if
3716 the password is set to "" or NULL (NULL is now a valid password:
3717 it wasn't before) as does the pkcs12 application.
3720 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
3721 perror when PEM_read_bio_X509_REQ fails, the error message must
3722 be obtained from the error queue.
3725 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
3726 it in ERR_remove_state if appropriate, and change ERR_get_state
3727 accordingly to avoid race conditions (this is necessary because
3728 thread_hash is no longer constant once set).
3731 *) Bugfix for linux-elf makefile.one.
3734 *) RSA_get_default_method() will now cause a default
3735 RSA_METHOD to be chosen if one doesn't exist already.
3736 Previously this was only set during a call to RSA_new()
3737 or RSA_new_method(NULL) meaning it was possible for
3738 RSA_get_default_method() to return NULL.
3741 *) Added native name translation to the existing DSO code
3742 that will convert (if the flag to do so is set) filenames
3743 that are sufficiently small and have no path information
3744 into a canonical native form. Eg. "blah" converted to
3745 "libblah.so" or "blah.dll" etc.
3748 *) New function ERR_error_string_n(e, buf, len) which is like
3749 ERR_error_string(e, buf), but writes at most 'len' bytes
3750 including the 0 terminator. For ERR_error_string_n, 'buf'
3752 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
3754 *) CONF library reworked to become more general. A new CONF
3755 configuration file reader "class" is implemented as well as a
3756 new functions (NCONF_*, for "New CONF") to handle it. The now
3757 old CONF_* functions are still there, but are reimplemented to
3758 work in terms of the new functions. Also, a set of functions
3759 to handle the internal storage of the configuration data is
3760 provided to make it easier to write new configuration file
3761 reader "classes" (I can definitely see something reading a
3762 configuration file in XML format, for example), called _CONF_*,
3763 or "the configuration storage API"...
3765 The new configuration file reading functions are:
3767 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
3768 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
3770 NCONF_default, NCONF_WIN32
3772 NCONF_dump_fp, NCONF_dump_bio
3774 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
3775 NCONF_new creates a new CONF object. This works in the same way
3776 as other interfaces in OpenSSL, like the BIO interface.
3777 NCONF_dump_* dump the internal storage of the configuration file,
3778 which is useful for debugging. All other functions take the same
3779 arguments as the old CONF_* functions wth the exception of the
3780 first that must be a `CONF *' instead of a `LHASH *'.
3782 To make it easer to use the new classes with the old CONF_* functions,
3783 the function CONF_set_default_method is provided.
3786 *) Add '-tls1' option to 'openssl ciphers', which was already
3787 mentioned in the documentation but had not been implemented.
3788 (This option is not yet really useful because even the additional
3789 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
3792 *) Initial DSO code added into libcrypto for letting OpenSSL (and
3793 OpenSSL-based applications) load shared libraries and bind to
3794 them in a portable way.
3795 [Geoff Thorpe, with contributions from Richard Levitte]
3797 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
3799 *) Make sure _lrotl and _lrotr are only used with MSVC.
3801 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
3802 (the default implementation of RAND_status).
3804 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
3805 to '-clrext' (= clear extensions), as intended and documented.
3806 [Bodo Moeller; inconsistency pointed out by Michael Attili
3809 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
3810 was larger than the MD block size.
3811 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
3813 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
3814 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
3815 using the passed key: if the passed key was a private key the result
3816 of X509_print(), for example, would be to print out all the private key
3820 *) des_quad_cksum() byte order bug fix.
3821 [Ulf Möller, using the problem description in krb4-0.9.7, where
3822 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
3824 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
3826 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
3828 *) For easily testing in shell scripts whether some command
3829 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
3830 returns with exit code 0 iff no command of the given name is available.
3831 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
3832 the output goes to stdout and nothing is printed to stderr.
3833 Additional arguments are always ignored.
3835 Since for each cipher there is a command of the same name,
3836 the 'no-cipher' compilation switches can be tested this way.
3838 ('openssl no-XXX' is not able to detect pseudo-commands such
3839 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
3842 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
3845 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
3846 is set; it will be thrown away anyway because each handshake creates
3848 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
3849 to parameters -- in previous versions (since OpenSSL 0.9.3) the
3850 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
3851 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
3854 *) New s_client option -ign_eof: EOF at stdin is ignored, and
3855 'Q' and 'R' lose their special meanings (quit/renegotiate).
3856 This is part of what -quiet does; unlike -quiet, -ign_eof
3857 does not suppress any output.
3860 *) Add compatibility options to the purpose and trust code. The
3861 purpose X509_PURPOSE_ANY is "any purpose" which automatically
3862 accepts a certificate or CA, this was the previous behaviour,
3863 with all the associated security issues.
3865 X509_TRUST_COMPAT is the old trust behaviour: only and
3866 automatically trust self signed roots in certificate store. A
3867 new trust setting X509_TRUST_DEFAULT is used to specify that
3868 a purpose has no associated trust setting and it should instead
3869 use the value in the default purpose.
3872 *) Fix the PKCS#8 DSA private key code so it decodes keys again
3873 and fix a memory leak.
3876 *) In util/mkerr.pl (which implements 'make errors'), preserve
3877 reason strings from the previous version of the .c file, as
3878 the default to have only downcase letters (and digits) in
3879 automatically generated reasons codes is not always appropriate.
3882 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
3883 using strerror. Previously, ERR_reason_error_string() returned
3884 library names as reason strings for SYSerr; but SYSerr is a special
3885 case where small numbers are errno values, not library numbers.
3888 *) Add '-dsaparam' option to 'openssl dhparam' application. This
3889 converts DSA parameters into DH parameters. (When creating parameters,
3890 DSA_generate_parameters is used.)
3893 *) Include 'length' (recommended exponent length) in C code generated
3894 by 'openssl dhparam -C'.
3897 *) The second argument to set_label in perlasm was already being used
3898 so couldn't be used as a "file scope" flag. Moved to third argument
3902 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
3903 instead of RAND_bytes for encryption IVs and salts.
3906 *) Include RAND_status() into RAND_METHOD instead of implementing
3907 it only for md_rand.c Otherwise replacing the PRNG by calling
3908 RAND_set_rand_method would be impossible.
3911 *) Don't let DSA_generate_key() enter an infinite loop if the random
3912 number generation fails.
3915 *) New 'rand' application for creating pseudo-random output.
3918 *) Added configuration support for Linux/IA64
3919 [Rolf Haberrecker <rolf@suse.de>]
3921 *) Assembler module support for Mingw32.
3924 *) Shared library support for HPUX (in shlib/).
3925 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
3927 *) Shared library support for Solaris gcc.
3928 [Lutz Behnke <behnke@trustcenter.de>]
3930 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
3932 *) PKCS7_encrypt() was adding text MIME headers twice because they
3933 were added manually and by SMIME_crlf_copy().
3936 *) In bntest.c don't call BN_rand with zero bits argument.
3937 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
3939 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
3940 case was implemented. This caused BN_div_recp() to fail occasionally.
3943 *) Add an optional second argument to the set_label() in the perl
3944 assembly language builder. If this argument exists and is set
3945 to 1 it signals that the assembler should use a symbol whose
3946 scope is the entire file, not just the current function. This
3947 is needed with MASM which uses the format label:: for this scope.
3948 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
3950 *) Change the ASN1 types so they are typedefs by default. Before
3951 almost all types were #define'd to ASN1_STRING which was causing
3952 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
3956 *) Change names of new functions to the new get1/get0 naming
3957 convention: After 'get1', the caller owns a reference count
3958 and has to call ..._free; 'get0' returns a pointer to some
3959 data structure without incrementing reference counters.
3960 (Some of the existing 'get' functions increment a reference
3961 counter, some don't.)
3962 Similarly, 'set1' and 'add1' functions increase reference
3963 counters or duplicate objects.
3966 *) Allow for the possibility of temp RSA key generation failure:
3967 the code used to assume it always worked and crashed on failure.
3970 *) Fix potential buffer overrun problem in BIO_printf().
3971 [Ulf Möller, using public domain code by Patrick Powell; problem
3972 pointed out by David Sacerdote <das33@cornell.edu>]
3974 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
3975 RAND_egd() and RAND_status(). In the command line application,
3976 the EGD socket can be specified like a seed file using RANDFILE
3980 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
3981 Some CAs (e.g. Verisign) distribute certificates in this form.
3984 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
3985 list to exclude them. This means that no special compilation option
3986 is needed to use anonymous DH: it just needs to be included in the
3990 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
3991 EVP_MD_type. The old functionality is available in a new macro called
3992 EVP_MD_md(). Change code that uses it and update docs.
3995 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
3996 where the 'void *' argument is replaced by a function pointer argument.
3997 Previously 'void *' was abused to point to functions, which works on
3998 many platforms, but is not correct. As these functions are usually
3999 called by macros defined in OpenSSL header files, most source code
4000 should work without changes.
4003 *) <openssl/opensslconf.h> (which is created by Configure) now contains
4004 sections with information on -D... compiler switches used for
4005 compiling the library so that applications can see them. To enable
4006 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
4007 must be defined. E.g.,
4008 #define OPENSSL_ALGORITHM_DEFINES
4009 #include <openssl/opensslconf.h>
4010 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
4011 [Richard Levitte, Ulf and Bodo Möller]
4013 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
4017 *) Change the 'other' type in certificate aux info to a STACK_OF
4018 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
4019 the required ASN1 format: arbitrary types determined by an OID.
4022 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
4023 argument to 'req'. This is not because the function is newer or
4024 better than others it just uses the work 'NEW' in the certificate
4025 request header lines. Some software needs this.
4028 *) Reorganise password command line arguments: now passwords can be
4029 obtained from various sources. Delete the PEM_cb function and make
4030 it the default behaviour: i.e. if the callback is NULL and the
4031 usrdata argument is not NULL interpret it as a null terminated pass
4032 phrase. If usrdata and the callback are NULL then the pass phrase
4033 is prompted for as usual.
4036 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
4037 the support is automatically enabled. The resulting binaries will
4038 autodetect the card and use it if present.
4039 [Ben Laurie and Compaq Inc.]
4041 *) Work around for Netscape hang bug. This sends certificate request
4042 and server done in one record. Since this is perfectly legal in the
4043 SSL/TLS protocol it isn't a "bug" option and is on by default. See
4044 the bugs/SSLv3 entry for more info.
4047 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
4050 *) Add -rand argument to smime and pkcs12 applications and read/write
4054 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
4057 *) Add command line password options to the remaining applications.
4060 *) Bug fix for BN_div_recp() for numerators with an even number of
4064 *) More tests in bntest.c, and changed test_bn output.
4067 *) ./config recognizes MacOS X now.
4070 *) Bug fix for BN_div() when the first words of num and divsor are
4071 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
4074 *) Add support for various broken PKCS#8 formats, and command line
4075 options to produce them.
4078 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
4079 get temporary BIGNUMs from a BN_CTX.
4082 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
4086 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
4087 include a #define from the old name to the new. The original intent
4088 was that statically linked binaries could for example just call
4089 SSLeay_add_all_ciphers() to just add ciphers to the table and not
4090 link with digests. This never worked becayse SSLeay_add_all_digests()
4091 and SSLeay_add_all_ciphers() were in the same source file so calling
4092 one would link with the other. They are now in separate source files.
4095 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
4098 *) Use a less unusual form of the Miller-Rabin primality test (it used
4099 a binary algorithm for exponentiation integrated into the Miller-Rabin
4100 loop, our standard modexp algorithms are faster).
4103 *) Support for the EBCDIC character set completed.
4104 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
4106 *) Source code cleanups: use const where appropriate, eliminate casts,
4107 use void * instead of char * in lhash.
4110 *) Bugfix: ssl3_send_server_key_exchange was not restartable
4111 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
4112 this the server could overwrite ephemeral keys that the client
4116 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
4117 using 50 iterations of the Rabin-Miller test.
4119 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
4120 iterations of the Rabin-Miller test as required by the appendix
4121 to FIPS PUB 186[-1]) instead of DSA_is_prime.
4122 As BN_is_prime_fasttest includes trial division, DSA parameter
4123 generation becomes much faster.
4125 This implies a change for the callback functions in DSA_is_prime
4126 and DSA_generate_parameters: The callback function is called once
4127 for each positive witness in the Rabin-Miller test, not just
4128 occasionally in the inner loop; and the parameters to the
4129 callback function now provide an iteration count for the outer
4130 loop rather than for the current invocation of the inner loop.
4131 DSA_generate_parameters additionally can call the callback
4132 function with an 'iteration count' of -1, meaning that a
4133 candidate has passed the trial division test (when q is generated
4134 from an application-provided seed, trial division is skipped).
4137 *) New function BN_is_prime_fasttest that optionally does trial
4138 division before starting the Rabin-Miller test and has
4139 an additional BN_CTX * argument (whereas BN_is_prime always
4140 has to allocate at least one BN_CTX).
4141 'callback(1, -1, cb_arg)' is called when a number has passed the
4142 trial division stage.
4145 *) Fix for bug in CRL encoding. The validity dates weren't being handled
4149 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
4152 *) New function BN_pseudo_rand().
4155 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
4156 bignum version of BN_from_montgomery() with the working code from
4157 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
4161 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
4162 made it impossible to use the same SSL_SESSION data structure in
4163 SSL2 clients in multiple threads.
4166 *) The return value of RAND_load_file() no longer counts bytes obtained
4167 by stat(). RAND_load_file(..., -1) is new and uses the complete file
4168 to seed the PRNG (previously an explicit byte count was required).
4169 [Ulf Möller, Bodo Möller]
4171 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
4172 used (char *) instead of (void *) and had casts all over the place.
4175 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
4178 *) Retain source code compatibility for BN_prime_checks macro:
4179 BN_is_prime(..., BN_prime_checks, ...) now uses
4180 BN_prime_checks_for_size to determine the appropriate number of
4181 Rabin-Miller iterations.
4184 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
4185 DH_CHECK_P_NOT_SAFE_PRIME.
4186 (Check if this is true? OpenPGP calls them "strong".)
4189 *) Merge the functionality of "dh" and "gendh" programs into a new program
4190 "dhparam". The old programs are retained for now but will handle DH keys
4191 (instead of parameters) in future.
4194 *) Make the ciphers, s_server and s_client programs check the return values
4195 when a new cipher list is set.
4198 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
4199 ciphers. Before when the 56bit ciphers were enabled the sorting was
4202 The syntax for the cipher sorting has been extended to support sorting by
4203 cipher-strength (using the strength_bits hard coded in the tables).
4204 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
4206 Fix a bug in the cipher-command parser: when supplying a cipher command
4207 string with an "undefined" symbol (neither command nor alphanumeric
4208 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
4209 an error is flagged.
4211 Due to the strength-sorting extension, the code of the
4212 ssl_create_cipher_list() function was completely rearranged. I hope that
4213 the readability was also increased :-)
4214 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
4216 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
4217 for the first serial number and places 2 in the serial number file. This
4218 avoids problems when the root CA is created with serial number zero and
4219 the first user certificate has the same issuer name and serial number
4223 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
4224 the new code. Add documentation for this stuff.
4227 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
4228 X509_*() to X509at_*() on the grounds that they don't handle X509
4229 structures and behave in an analagous way to the X509v3 functions:
4230 they shouldn't be called directly but wrapper functions should be used
4233 So we also now have some wrapper functions that call the X509at functions
4234 when passed certificate requests. (TO DO: similar things can be done with
4235 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
4236 things. Some of these need some d2i or i2d and print functionality
4237 because they handle more complex structures.)
4240 *) Add missing #ifndefs that caused missing symbols when building libssl
4241 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
4242 NO_RSA in ssl/s2*.c.
4243 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
4245 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
4246 has a return value which indicates the quality of the random data
4247 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
4248 error queue. New function RAND_pseudo_bytes() generates output that is
4249 guaranteed to be unique but not unpredictable. RAND_add is like
4250 RAND_seed, but takes an extra argument for an entropy estimate
4251 (RAND_seed always assumes full entropy).
4254 *) Do more iterations of Rabin-Miller probable prime test (specifically,
4255 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
4256 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
4257 in crypto/bn/bn_prime.c for the complete table). This guarantees a
4258 false-positive rate of at most 2^-80 for random input.
4261 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
4264 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
4265 in the 0.9.5 release), this returns the chain
4266 from an X509_CTX structure with a dup of the stack and all
4267 the X509 reference counts upped: so the stack will exist
4268 after X509_CTX_cleanup() has been called. Modify pkcs12.c
4271 Also make SSL_SESSION_print() print out the verify return
4275 *) Add manpage for the pkcs12 command. Also change the default
4276 behaviour so MAC iteration counts are used unless the new
4277 -nomaciter option is used. This improves file security and
4278 only older versions of MSIE (4.0 for example) need it.
4281 *) Honor the no-xxx Configure options when creating .DEF files.
4284 *) Add PKCS#10 attributes to field table: challengePassword,
4285 unstructuredName and unstructuredAddress. These are taken from
4286 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
4287 international characters are used.
4289 More changes to X509_ATTRIBUTE code: allow the setting of types
4290 based on strings. Remove the 'loc' parameter when adding
4291 attributes because these will be a SET OF encoding which is sorted
4295 *) Initial changes to the 'req' utility to allow request generation
4296 automation. This will allow an application to just generate a template
4297 file containing all the field values and have req construct the
4300 Initial support for X509_ATTRIBUTE handling. Stacks of these are
4301 used all over the place including certificate requests and PKCS#7
4302 structures. They are currently handled manually where necessary with
4303 some primitive wrappers for PKCS#7. The new functions behave in a
4304 manner analogous to the X509 extension functions: they allow
4305 attributes to be looked up by NID and added.
4307 Later something similar to the X509V3 code would be desirable to
4308 automatically handle the encoding, decoding and printing of the
4309 more complex types. The string types like challengePassword can
4310 be handled by the string table functions.
4312 Also modified the multi byte string table handling. Now there is
4313 a 'global mask' which masks out certain types. The table itself
4314 can use the flag STABLE_NO_MASK to ignore the mask setting: this
4315 is useful when for example there is only one permissible type
4316 (as in countryName) and using the mask might result in no valid
4320 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
4321 SSL_get_peer_finished to allow applications to obtain the latest
4322 Finished messages sent to the peer or expected from the peer,
4323 respectively. (SSL_get_peer_finished is usually the Finished message
4324 actually received from the peer, otherwise the protocol will be aborted.)
4326 As the Finished message are message digests of the complete handshake
4327 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
4328 be used for external authentication procedures when the authentication
4329 provided by SSL/TLS is not desired or is not enough.
4332 *) Enhanced support for Alpha Linux is added. Now ./config checks if
4333 the host supports BWX extension and if Compaq C is present on the
4334 $PATH. Just exploiting of the BWX extension results in 20-30%
4335 performance kick for some algorithms, e.g. DES and RC4 to mention
4336 a couple. Compaq C in turn generates ~20% faster code for MD5 and
4340 *) Add support for MS "fast SGC". This is arguably a violation of the
4341 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
4342 weak crypto and after checking the certificate is SGC a second one
4343 with strong crypto. MS SGC stops the first handshake after receiving
4344 the server certificate message and sends a second client hello. Since
4345 a server will typically do all the time consuming operations before
4346 expecting any further messages from the client (server key exchange
4347 is the most expensive) there is little difference between the two.
4349 To get OpenSSL to support MS SGC we have to permit a second client
4350 hello message after we have sent server done. In addition we have to
4351 reset the MAC if we do get this second client hello.
4354 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
4355 if a DER encoded private key is RSA or DSA traditional format. Changed
4356 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
4357 format DER encoded private key. Newer code should use PKCS#8 format which
4358 has the key type encoded in the ASN1 structure. Added DER private key
4359 support to pkcs8 application.
4362 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
4363 ciphersuites has been selected (as required by the SSL 3/TLS 1
4364 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
4365 is set, we interpret this as a request to violate the specification
4366 (the worst that can happen is a handshake failure, and 'correct'
4367 behaviour would result in a handshake failure anyway).
4370 *) In SSL_CTX_add_session, take into account that there might be multiple
4371 SSL_SESSION structures with the same session ID (e.g. when two threads
4372 concurrently obtain them from an external cache).
4373 The internal cache can handle only one SSL_SESSION with a given ID,
4374 so if there's a conflict, we now throw out the old one to achieve
4378 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
4379 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
4380 some routines that use cipher OIDs: some ciphers do not have OIDs
4381 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
4385 *) Simplify the trust setting structure and code. Now we just have
4386 two sequences of OIDs for trusted and rejected settings. These will
4387 typically have values the same as the extended key usage extension
4388 and any application specific purposes.
4390 The trust checking code now has a default behaviour: it will just
4391 check for an object with the same NID as the passed id. Functions can
4392 be provided to override either the default behaviour or the behaviour
4393 for a given id. SSL client, server and email already have functions
4394 in place for compatibility: they check the NID and also return "trusted"
4395 if the certificate is self signed.
4398 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
4399 traditional format into an EVP_PKEY structure.
4402 *) Add a password callback function PEM_cb() which either prompts for
4403 a password if usr_data is NULL or otherwise assumes it is a null
4404 terminated password. Allow passwords to be passed on command line
4405 environment or config files in a few more utilities.
4408 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
4409 keys. Add some short names for PKCS#8 PBE algorithms and allow them
4410 to be specified on the command line for the pkcs8 and pkcs12 utilities.
4411 Update documentation.
4414 *) Support for ASN1 "NULL" type. This could be handled before by using
4415 ASN1_TYPE but there wasn't any function that would try to read a NULL
4416 and produce an error if it couldn't. For compatibility we also have
4417 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
4418 don't allocate anything because they don't need to.
4421 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
4423 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
4425 *) Rebuild of the memory allocation routines used by OpenSSL code and
4426 possibly others as well. The purpose is to make an interface that
4427 provide hooks so anyone can build a separate set of allocation and
4428 deallocation routines to be used by OpenSSL, for example memory
4429 pool implementations, or something else, which was previously hard
4430 since Malloc(), Realloc() and Free() were defined as macros having
4431 the values malloc, realloc and free, respectively (except for Win32
4432 compilations). The same is provided for memory debugging code.
4433 OpenSSL already comes with functionality to find memory leaks, but
4434 this gives people a chance to debug other memory problems.
4436 With these changes, a new set of functions and macros have appeared:
4438 CRYPTO_set_mem_debug_functions() [F]
4439 CRYPTO_get_mem_debug_functions() [F]
4440 CRYPTO_dbg_set_options() [F]
4441 CRYPTO_dbg_get_options() [F]
4442 CRYPTO_malloc_debug_init() [M]
4444 The memory debug functions are NULL by default, unless the library
4445 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
4446 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
4447 gives the standard debugging functions that come with OpenSSL) or
4448 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
4449 provided by the library user) must be used. When the standard
4450 debugging functions are used, CRYPTO_dbg_set_options can be used to
4451 request additional information:
4452 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
4453 the CRYPTO_MDEBUG_xxx macro when compiling the library.
4455 Also, things like CRYPTO_set_mem_functions will always give the
4456 expected result (the new set of functions is used for allocation
4457 and deallocation) at all times, regardless of platform and compiler
4460 To finish it up, some functions that were never use in any other
4461 way than through macros have a new API and new semantic:
4464 CRYPTO_dbg_realloc()
4467 All macros of value have retained their old syntax.
4468 [Richard Levitte and Bodo Moeller]
4470 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
4471 ordering of SMIMECapabilities wasn't in "strength order" and there
4472 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
4476 *) Some ASN1 types with illegal zero length encoding (INTEGER,
4477 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
4478 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
4480 *) Merge in my S/MIME library for OpenSSL. This provides a simple
4481 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
4482 functionality to handle multipart/signed properly) and a utility
4483 called 'smime' to call all this stuff. This is based on code I
4484 originally wrote for Celo who have kindly allowed it to be
4485 included in OpenSSL.
4488 *) Add variants des_set_key_checked and des_set_key_unchecked of
4489 des_set_key (aka des_key_sched). Global variable des_check_key
4490 decides which of these is called by des_set_key; this way
4491 des_check_key behaves as it always did, but applications and
4492 the library itself, which was buggy for des_check_key == 1,
4493 have a cleaner way to pick the version they need.
4496 *) New function PKCS12_newpass() which changes the password of a
4500 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
4501 dynamic mix. In both cases the ids can be used as an index into the
4502 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
4503 functions so they accept a list of the field values and the
4504 application doesn't need to directly manipulate the X509_TRUST
4508 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
4512 *) Modify the way the V3 extension code looks up extensions. This now
4513 works in a similar way to the object code: we have some "standard"
4514 extensions in a static table which is searched with OBJ_bsearch()
4515 and the application can add dynamic ones if needed. The file
4516 crypto/x509v3/ext_dat.h now has the info: this file needs to be
4517 updated whenever a new extension is added to the core code and kept
4518 in ext_nid order. There is a simple program 'tabtest.c' which checks
4519 this. New extensions are not added too often so this file can readily
4520 be maintained manually.
4522 There are two big advantages in doing things this way. The extensions
4523 can be looked up immediately and no longer need to be "added" using
4524 X509V3_add_standard_extensions(): this function now does nothing.
4525 [Side note: I get *lots* of email saying the extension code doesn't
4526 work because people forget to call this function]
4527 Also no dynamic allocation is done unless new extensions are added:
4528 so if we don't add custom extensions there is no need to call
4529 X509V3_EXT_cleanup().
4532 *) Modify enc utility's salting as follows: make salting the default. Add a
4533 magic header, so unsalted files fail gracefully instead of just decrypting
4534 to garbage. This is because not salting is a big security hole, so people
4535 should be discouraged from doing it.
4538 *) Fixes and enhancements to the 'x509' utility. It allowed a message
4539 digest to be passed on the command line but it only used this
4540 parameter when signing a certificate. Modified so all relevant
4541 operations are affected by the digest parameter including the
4542 -fingerprint and -x509toreq options. Also -x509toreq choked if a
4543 DSA key was used because it didn't fix the digest.
4546 *) Initial certificate chain verify code. Currently tests the untrusted
4547 certificates for consistency with the verify purpose (which is set
4548 when the X509_STORE_CTX structure is set up) and checks the pathlength.
4550 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
4551 this is because it will reject chains with invalid extensions whereas
4552 every previous version of OpenSSL and SSLeay made no checks at all.
4554 Trust code: checks the root CA for the relevant trust settings. Trust
4555 settings have an initial value consistent with the verify purpose: e.g.
4556 if the verify purpose is for SSL client use it expects the CA to be
4557 trusted for SSL client use. However the default value can be changed to
4558 permit custom trust settings: one example of this would be to only trust
4559 certificates from a specific "secure" set of CAs.
4561 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
4562 which should be used for version portability: especially since the
4563 verify structure is likely to change more often now.
4565 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
4566 to set them. If not set then assume SSL clients will verify SSL servers
4569 Two new options to the verify program: -untrusted allows a set of
4570 untrusted certificates to be passed in and -purpose which sets the
4571 intended purpose of the certificate. If a purpose is set then the
4572 new chain verify code is used to check extension consistency.
4575 *) Support for the authority information access extension.
4578 *) Modify RSA and DSA PEM read routines to transparently handle
4579 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
4580 public keys in a format compatible with certificate
4581 SubjectPublicKeyInfo structures. Unfortunately there were already
4582 functions called *_PublicKey_* which used various odd formats so
4583 these are retained for compatibility: however the DSA variants were
4584 never in a public release so they have been deleted. Changed dsa/rsa
4585 utilities to handle the new format: note no releases ever handled public
4586 keys so we should be OK.
4588 The primary motivation for this change is to avoid the same fiasco
4589 that dogs private keys: there are several incompatible private key
4590 formats some of which are standard and some OpenSSL specific and
4591 require various evil hacks to allow partial transparent handling and
4592 even then it doesn't work with DER formats. Given the option anything
4593 other than PKCS#8 should be dumped: but the other formats have to
4594 stay in the name of compatibility.
4596 With public keys and the benefit of hindsight one standard format
4597 is used which works with EVP_PKEY, RSA or DSA structures: though
4598 it clearly returns an error if you try to read the wrong kind of key.
4600 Added a -pubkey option to the 'x509' utility to output the public key.
4601 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
4602 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
4603 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
4604 that do the same as the EVP_PKEY_assign_*() except they up the
4605 reference count of the added key (they don't "swallow" the
4609 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
4610 CRLs would fail if the file contained no certificates or no CRLs:
4611 added a new function to read in both types and return the number
4612 read: this means that if none are read it will be an error. The
4613 DER versions of the certificate and CRL reader would always fail
4614 because it isn't possible to mix certificates and CRLs in DER format
4615 without choking one or the other routine. Changed this to just read
4616 a certificate: this is the best we can do. Also modified the code
4617 in apps/verify.c to take notice of return codes: it was previously
4618 attempting to read in certificates from NULL pointers and ignoring
4619 any errors: this is one reason why the cert and CRL reader seemed
4620 to work. It doesn't check return codes from the default certificate
4621 routines: these may well fail if the certificates aren't installed.
4624 *) Code to support otherName option in GeneralName.
4627 *) First update to verify code. Change the verify utility
4628 so it warns if it is passed a self signed certificate:
4629 for consistency with the normal behaviour. X509_verify
4630 has been modified to it will now verify a self signed
4631 certificate if *exactly* the same certificate appears
4632 in the store: it was previously impossible to trust a
4633 single self signed certificate. This means that:
4634 openssl verify ss.pem
4635 now gives a warning about a self signed certificate but
4636 openssl verify -CAfile ss.pem ss.pem
4640 *) For servers, store verify_result in SSL_SESSION data structure
4641 (and add it to external session representation).
4642 This is needed when client certificate verifications fails,
4643 but an application-provided verification callback (set by
4644 SSL_CTX_set_cert_verify_callback) allows accepting the session
4645 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
4646 but returns 1): When the session is reused, we have to set
4647 ssl->verify_result to the appropriate error code to avoid
4649 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
4651 *) Fix a bug in the new PKCS#7 code: it didn't consider the
4652 case in PKCS7_dataInit() where the signed PKCS7 structure
4653 didn't contain any existing data because it was being created.
4654 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
4656 *) Add a salt to the key derivation routines in enc.c. This
4657 forms the first 8 bytes of the encrypted file. Also add a
4658 -S option to allow a salt to be input on the command line.
4661 *) New function X509_cmp(). Oddly enough there wasn't a function
4662 to compare two certificates. We do this by working out the SHA1
4663 hash and comparing that. X509_cmp() will be needed by the trust
4667 *) SSL_get1_session() is like SSL_get_session(), but increments
4668 the reference count in the SSL_SESSION returned.
4669 [Geoff Thorpe <geoff@eu.c2.net>]
4671 *) Fix for 'req': it was adding a null to request attributes.
4672 Also change the X509_LOOKUP and X509_INFO code to handle
4673 certificate auxiliary information.
4676 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
4680 *) Add the possibility to add extra information to the memory leak
4681 detecting output, to form tracebacks, showing from where each
4682 allocation was originated: CRYPTO_push_info("constant string") adds
4683 the string plus current file name and line number to a per-thread
4684 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
4685 is like calling CYRPTO_pop_info() until the stack is empty.
4686 Also updated memory leak detection code to be multi-thread-safe.
4689 *) Add options -text and -noout to pkcs7 utility and delete the
4690 encryption options which never did anything. Update docs.
4693 *) Add options to some of the utilities to allow the pass phrase
4694 to be included on either the command line (not recommended on
4695 OSes like Unix) or read from the environment. Update the
4696 manpages and fix a few bugs.
4699 *) Add a few manpages for some of the openssl commands.
4702 *) Fix the -revoke option in ca. It was freeing up memory twice,
4703 leaking and not finding already revoked certificates.
4706 *) Extensive changes to support certificate auxiliary information.
4707 This involves the use of X509_CERT_AUX structure and X509_AUX
4708 functions. An X509_AUX function such as PEM_read_X509_AUX()
4709 can still read in a certificate file in the usual way but it
4710 will also read in any additional "auxiliary information". By
4711 doing things this way a fair degree of compatibility can be
4712 retained: existing certificates can have this information added
4713 using the new 'x509' options.
4715 Current auxiliary information includes an "alias" and some trust
4716 settings. The trust settings will ultimately be used in enhanced
4717 certificate chain verification routines: currently a certificate
4718 can only be trusted if it is self signed and then it is trusted
4722 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
4723 The problem was that one of the replacement routines had not been working
4724 since SSLeay releases. For now the offending routine has been replaced
4725 with non-optimised assembler. Even so, this now gives around 95%
4726 performance improvement for 1024 bit RSA signs.
4729 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
4730 handling. Most clients have the effective key size in bits equal to
4731 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
4732 A few however don't do this and instead use the size of the decrypted key
4733 to determine the RC2 key length and the AlgorithmIdentifier to determine
4734 the effective key length. In this case the effective key length can still
4735 be 40 bits but the key length can be 168 bits for example. This is fixed
4736 by manually forcing an RC2 key into the EVP_PKEY structure because the
4737 EVP code can't currently handle unusual RC2 key sizes: it always assumes
4738 the key length and effective key length are equal.
4741 *) Add a bunch of functions that should simplify the creation of
4742 X509_NAME structures. Now you should be able to do:
4743 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
4744 and have it automatically work out the correct field type and fill in
4745 the structures. The more adventurous can try:
4746 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
4747 and it will (hopefully) work out the correct multibyte encoding.
4750 *) Change the 'req' utility to use the new field handling and multibyte
4751 copy routines. Before the DN field creation was handled in an ad hoc
4752 way in req, ca, and x509 which was rather broken and didn't support
4753 BMPStrings or UTF8Strings. Since some software doesn't implement
4754 BMPStrings or UTF8Strings yet, they can be enabled using the config file
4755 using the dirstring_type option. See the new comment in the default
4756 openssl.cnf for more info.
4759 *) Make crypto/rand/md_rand.c more robust:
4760 - Assure unique random numbers after fork().
4761 - Make sure that concurrent threads access the global counter and
4762 md serializably so that we never lose entropy in them
4763 or use exactly the same state in multiple threads.
4764 Access to the large state is not always serializable because
4765 the additional locking could be a performance killer, and
4766 md should be large enough anyway.
4769 *) New file apps/app_rand.c with commonly needed functionality
4770 for handling the random seed file.
4772 Use the random seed file in some applications that previously did not:
4774 dsaparam -genkey (which also ignored its '-rand' option),
4777 x509 (when signing).
4778 Except on systems with /dev/urandom, it is crucial to have a random
4779 seed file at least for key creation, DSA signing, and for DH exchanges;
4780 for RSA signatures we could do without one.
4782 gendh and gendsa (unlike genrsa) used to read only the first byte
4783 of each file listed in the '-rand' option. The function as previously
4784 found in genrsa is now in app_rand.c and is used by all programs
4785 that support '-rand'.
4788 *) In RAND_write_file, use mode 0600 for creating files;
4789 don't just chmod when it may be too late.
4792 *) Report an error from X509_STORE_load_locations
4793 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
4796 *) New function ASN1_mbstring_copy() this copies a string in either
4797 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
4798 into an ASN1_STRING type. A mask of permissible types is passed
4799 and it chooses the "minimal" type to use or an error if not type
4803 *) Add function equivalents to the various macros in asn1.h. The old
4804 macros are retained with an M_ prefix. Code inside the library can
4805 use the M_ macros. External code (including the openssl utility)
4806 should *NOT* in order to be "shared library friendly".
4809 *) Add various functions that can check a certificate's extensions
4810 to see if it usable for various purposes such as SSL client,
4811 server or S/MIME and CAs of these types. This is currently
4812 VERY EXPERIMENTAL but will ultimately be used for certificate chain
4813 verification. Also added a -purpose flag to x509 utility to
4814 print out all the purposes.
4817 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
4821 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
4822 for, obtain and decode and extension and obtain its critical flag.
4823 This allows all the necessary extension code to be handled in a
4824 single function call.
4827 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
4828 platforms. See crypto/rc4/rc4_enc.c for further details.
4831 *) New -noout option to asn1parse. This causes no output to be produced
4832 its main use is when combined with -strparse and -out to extract data
4833 from a file (which may not be in ASN.1 format).
4836 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
4837 when producing the local key id.
4838 [Richard Levitte <levitte@stacken.kth.se>]
4840 *) New option -dhparam in s_server. This allows a DH parameter file to be
4841 stated explicitly. If it is not stated then it tries the first server
4842 certificate file. The previous behaviour hard coded the filename
4846 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
4847 a public key to be input or output. For example:
4848 openssl rsa -in key.pem -pubout -out pubkey.pem
4849 Also added necessary DSA public key functions to handle this.
4852 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
4853 in the message. This was handled by allowing
4854 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
4855 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
4857 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
4858 to the end of the strings whereas this didn't. This would cause problems
4859 if strings read with d2i_ASN1_bytes() were later modified.
4860 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
4862 *) Fix for base64 decode bug. When a base64 bio reads only one line of
4863 data and it contains EOF it will end up returning an error. This is
4864 caused by input 46 bytes long. The cause is due to the way base64
4865 BIOs find the start of base64 encoded data. They do this by trying a
4866 trial decode on each line until they find one that works. When they
4867 do a flag is set and it starts again knowing it can pass all the
4868 data directly through the decoder. Unfortunately it doesn't reset
4869 the context it uses. This means that if EOF is reached an attempt
4870 is made to pass two EOFs through the context and this causes the
4871 resulting error. This can also cause other problems as well. As is
4872 usual with these problems it takes *ages* to find and the fix is
4873 trivial: move one line.
4874 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
4876 *) Ugly workaround to get s_client and s_server working under Windows. The
4877 old code wouldn't work because it needed to select() on sockets and the
4878 tty (for keypresses and to see if data could be written). Win32 only
4879 supports select() on sockets so we select() with a 1s timeout on the
4880 sockets and then see if any characters are waiting to be read, if none
4881 are present then we retry, we also assume we can always write data to
4882 the tty. This isn't nice because the code then blocks until we've
4883 received a complete line of data and it is effectively polling the
4884 keyboard at 1s intervals: however it's quite a bit better than not
4885 working at all :-) A dedicated Windows application might handle this
4886 with an event loop for example.
4889 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
4890 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
4891 will be called when RSA_sign() and RSA_verify() are used. This is useful
4892 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
4893 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
4894 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
4895 This necessitated the support of an extra signature type NID_md5_sha1
4896 for SSL signatures and modifications to the SSL library to use it instead
4897 of calling RSA_public_decrypt() and RSA_private_encrypt().
4900 *) Add new -verify -CAfile and -CApath options to the crl program, these
4901 will lookup a CRL issuers certificate and verify the signature in a
4902 similar way to the verify program. Tidy up the crl program so it
4903 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
4904 less strict. It will now permit CRL extensions even if it is not
4905 a V2 CRL: this will allow it to tolerate some broken CRLs.
4908 *) Initialize all non-automatic variables each time one of the openssl
4909 sub-programs is started (this is necessary as they may be started
4910 multiple times from the "OpenSSL>" prompt).
4911 [Lennart Bang, Bodo Moeller]
4913 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
4914 removing all other RSA functionality (this is what NO_RSA does). This
4915 is so (for example) those in the US can disable those operations covered
4916 by the RSA patent while allowing storage and parsing of RSA keys and RSA
4920 *) Non-copying interface to BIO pairs.
4921 (still largely untested)
4924 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
4925 ASCII string. This was handled independently in various places before.
4928 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
4929 UTF8 strings a character at a time.
4932 *) Use client_version from client hello to select the protocol
4933 (s23_srvr.c) and for RSA client key exchange verification
4934 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
4937 *) Add various utility functions to handle SPKACs, these were previously
4938 handled by poking round in the structure internals. Added new function
4939 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
4940 print, verify and generate SPKACs. Based on an original idea from
4941 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
4944 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
4947 *) Allow the config file extension section to be overwritten on the
4948 command line. Based on an original idea from Massimiliano Pala
4949 <madwolf@comune.modena.it>. The new option is called -extensions
4950 and can be applied to ca, req and x509. Also -reqexts to override
4951 the request extensions in req and -crlexts to override the crl extensions
4955 *) Add new feature to the SPKAC handling in ca. Now you can include
4956 the same field multiple times by preceding it by "XXXX." for example:
4959 this is the same syntax as used in the req config file.
4962 *) Allow certificate extensions to be added to certificate requests. These
4963 are specified in a 'req_extensions' option of the req section of the
4964 config file. They can be printed out with the -text option to req but
4965 are otherwise ignored at present.
4968 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
4969 data read consists of only the final block it would not decrypted because
4970 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
4971 A misplaced 'break' also meant the decrypted final block might not be
4972 copied until the next read.
4975 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
4976 a few extra parameters to the DH structure: these will be useful if
4977 for example we want the value of 'q' or implement X9.42 DH.
4980 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
4981 provides hooks that allow the default DSA functions or functions on a
4982 "per key" basis to be replaced. This allows hardware acceleration and
4983 hardware key storage to be handled without major modification to the
4984 library. Also added low level modexp hooks and CRYPTO_EX structure and
4985 associated functions.
4988 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
4989 as "read only": it can't be written to and the buffer it points to will
4990 not be freed. Reading from a read only BIO is much more efficient than
4991 a normal memory BIO. This was added because there are several times when
4992 an area of memory needs to be read from a BIO. The previous method was
4993 to create a memory BIO and write the data to it, this results in two
4994 copies of the data and an O(n^2) reading algorithm. There is a new
4995 function BIO_new_mem_buf() which creates a read only memory BIO from
4996 an area of memory. Also modified the PKCS#7 routines to use read only
5000 *) Bugfix: ssl23_get_client_hello did not work properly when called in
5001 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
5002 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
5003 but a retry condition occured while trying to read the rest.
5006 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
5007 NID_pkcs7_encrypted by default: this was wrong since this should almost
5008 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
5009 the encrypted data type: this is a more sensible place to put it and it
5010 allows the PKCS#12 code to be tidied up that duplicated this
5014 *) Changed obj_dat.pl script so it takes its input and output files on
5015 the command line. This should avoid shell escape redirection problems
5019 *) Initial support for certificate extension requests, these are included
5020 in things like Xenroll certificate requests. Included functions to allow
5021 extensions to be obtained and added.
5024 *) -crlf option to s_client and s_server for sending newlines as
5025 CRLF (as required by many protocols).
5028 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
5030 *) Install libRSAglue.a when OpenSSL is built with RSAref.
5031 [Ralf S. Engelschall]
5033 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
5034 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
5036 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
5040 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
5041 DH parameters/keys (q is lost during that conversion, but the resulting
5042 DH parameters contain its length).
5044 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
5045 much faster than DH_generate_parameters (which creates parameters
5046 where p = 2*q + 1), and also the smaller q makes DH computations
5047 much more efficient (160-bit exponentiation instead of 1024-bit
5048 exponentiation); so this provides a convenient way to support DHE
5049 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
5050 utter importance to use
5051 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
5053 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
5054 when such DH parameters are used, because otherwise small subgroup
5055 attacks may become possible!
5058 *) Avoid memory leak in i2d_DHparams.
5061 *) Allow the -k option to be used more than once in the enc program:
5062 this allows the same encrypted message to be read by multiple recipients.
5065 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
5066 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
5067 it will always use the numerical form of the OID, even if it has a short
5071 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
5072 method only got called if p,q,dmp1,dmq1,iqmp components were present,
5073 otherwise bn_mod_exp was called. In the case of hardware keys for example
5074 no private key components need be present and it might store extra data
5075 in the RSA structure, which cannot be accessed from bn_mod_exp.
5076 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
5077 private key operations.
5080 *) Added support for SPARC Linux.
5083 *) pem_password_cb function type incompatibly changed from
5084 typedef int pem_password_cb(char *buf, int size, int rwflag);
5086 ....(char *buf, int size, int rwflag, void *userdata);
5087 so that applications can pass data to their callbacks:
5088 The PEM[_ASN1]_{read,write}... functions and macros now take an
5089 additional void * argument, which is just handed through whenever
5090 the password callback is called.
5091 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
5093 New function SSL_CTX_set_default_passwd_cb_userdata.
5095 Compatibility note: As many C implementations push function arguments
5096 onto the stack in reverse order, the new library version is likely to
5097 interoperate with programs that have been compiled with the old
5098 pem_password_cb definition (PEM_whatever takes some data that
5099 happens to be on the stack as its last argument, and the callback
5100 just ignores this garbage); but there is no guarantee whatsoever that
5103 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
5104 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
5105 problems not only on Windows, but also on some Unix platforms.
5106 To avoid problematic command lines, these definitions are now in an
5107 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
5108 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
5111 *) MIPS III/IV assembler module is reimplemented.
5114 *) More DES library cleanups: remove references to srand/rand and
5115 delete an unused file.
5118 *) Add support for the the free Netwide assembler (NASM) under Win32,
5119 since not many people have MASM (ml) and it can be hard to obtain.
5120 This is currently experimental but it seems to work OK and pass all
5121 the tests. Check out INSTALL.W32 for info.
5124 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
5125 without temporary keys kept an extra copy of the server key,
5126 and connections with temporary keys did not free everything in case
5130 *) New function RSA_check_key and new openssl rsa option -check
5131 for verifying the consistency of RSA keys.
5132 [Ulf Moeller, Bodo Moeller]
5134 *) Various changes to make Win32 compile work:
5135 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
5136 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
5137 comparison" warnings.
5138 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
5141 *) Add a debugging option to PKCS#5 v2 key generation function: when
5142 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
5143 derived keys are printed to stderr.
5146 *) Copy the flags in ASN1_STRING_dup().
5147 [Roman E. Pavlov <pre@mo.msk.ru>]
5149 *) The x509 application mishandled signing requests containing DSA
5150 keys when the signing key was also DSA and the parameters didn't match.
5152 It was supposed to omit the parameters when they matched the signing key:
5153 the verifying software was then supposed to automatically use the CA's
5154 parameters if they were absent from the end user certificate.
5156 Omitting parameters is no longer recommended. The test was also
5157 the wrong way round! This was probably due to unusual behaviour in
5158 EVP_cmp_parameters() which returns 1 if the parameters match.
5159 This meant that parameters were omitted when they *didn't* match and
5160 the certificate was useless. Certificates signed with 'ca' didn't have
5162 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
5164 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
5165 The interface is as follows:
5166 Applications can use
5167 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
5168 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
5169 "off" is now the default.
5170 The library internally uses
5171 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
5172 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
5173 to disable memory-checking temporarily.
5175 Some inconsistent states that previously were possible (and were
5176 even the default) are now avoided.
5178 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
5179 with each memory chunk allocated; this is occasionally more helpful
5180 than just having a counter.
5182 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
5184 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
5188 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
5189 which largely parallels "options", but is for changing API behaviour,
5190 whereas "options" are about protocol behaviour.
5191 Initial "mode" flags are:
5193 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
5194 a single record has been written.
5195 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
5196 retries use the same buffer location.
5197 (But all of the contents must be
5201 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
5204 *) Fix problems with no-hmac etc.
5205 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
5207 *) New functions RSA_get_default_method(), RSA_set_method() and
5208 RSA_get_method(). These allows replacement of RSA_METHODs without having
5209 to mess around with the internals of an RSA structure.
5212 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
5213 Also really enable memory leak checks in openssl.c and in some
5215 [Chad C. Mulligan, Bodo Moeller]
5217 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
5218 up the length of negative integers. This has now been simplified to just
5219 store the length when it is first determined and use it later, rather
5220 than trying to keep track of where data is copied and updating it to
5222 [Steve Henson, reported by Brien Wheeler
5223 <bwheeler@authentica-security.com>]
5225 *) Add a new function PKCS7_signatureVerify. This allows the verification
5226 of a PKCS#7 signature but with the signing certificate passed to the
5227 function itself. This contrasts with PKCS7_dataVerify which assumes the
5228 certificate is present in the PKCS#7 structure. This isn't always the
5229 case: certificates can be omitted from a PKCS#7 structure and be
5230 distributed by "out of band" means (such as a certificate database).
5233 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
5234 function prototypes in pem.h, also change util/mkdef.pl to add the
5235 necessary function names.
5238 *) mk1mf.pl (used by Windows builds) did not properly read the
5239 options set by Configure in the top level Makefile, and Configure
5240 was not even able to write more than one option correctly.
5241 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
5244 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
5245 file to be loaded from a BIO or FILE pointer. The BIO version will
5246 for example allow memory BIOs to contain config info.
5249 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
5250 Whoever hopes to achieve shared-library compatibility across versions
5251 must use this, not the compile-time macro.
5252 (Exercise 0.9.4: Which is the minimum library version required by
5254 Note: All this applies only to multi-threaded programs, others don't
5258 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
5259 through a BIO pair triggered the default case, i.e.
5260 SSLerr(...,SSL_R_UNKNOWN_STATE).
5263 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
5264 can use the SSL library even if none of the specific BIOs is
5268 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
5269 for the encoded length.
5270 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
5272 *) Add initial documentation of the X509V3 functions.
5275 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
5276 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
5277 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
5278 secure PKCS#8 private key format with a high iteration count.
5281 *) Fix determination of Perl interpreter: A perl or perl5
5282 _directory_ in $PATH was also accepted as the interpreter.
5283 [Ralf S. Engelschall]
5285 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
5286 wrong with it but it was very old and did things like calling
5287 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
5291 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
5292 to use the new extension code.
5295 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
5296 with macros. This should make it easier to change their form, add extra
5297 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
5301 *) Add to configuration table a new entry that can specify an alternative
5302 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
5303 according to Mark Crispin <MRC@Panda.COM>.
5307 *) DES CBC did not update the IV. Weird.
5310 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
5311 Changing the behaviour of the former might break existing programs --
5312 where IV updating is needed, des_ncbc_encrypt can be used.
5315 *) When bntest is run from "make test" it drives bc to check its
5316 calculations, as well as internally checking them. If an internal check
5317 fails, it needs to cause bc to give a non-zero result or make test carries
5318 on without noticing the failure. Fixed.
5321 *) DES library cleanups.
5324 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
5325 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
5326 ciphers. NOTE: although the key derivation function has been verified
5327 against some published test vectors it has not been extensively tested
5328 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
5332 *) Instead of "mkdir -p", which is not fully portable, use new
5333 Perl script "util/mkdir-p.pl".
5336 *) Rewrite the way password based encryption (PBE) is handled. It used to
5337 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
5338 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
5339 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
5340 the 'parameter' field of the AlgorithmIdentifier is passed to the
5341 underlying key generation function so it must do its own ASN1 parsing.
5342 This has also changed the EVP_PBE_CipherInit() function which now has a
5343 'parameter' argument instead of literal salt and iteration count values
5344 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
5347 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
5348 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
5349 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
5350 KEY" because this clashed with PKCS#8 unencrypted string. Since this
5351 value was just used as a "magic string" and not used directly its
5352 value doesn't matter.
5355 *) Introduce some semblance of const correctness to BN. Shame C doesn't
5359 *) "linux-sparc64" configuration (ultrapenguin).
5360 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
5361 "linux-sparc" configuration.
5362 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
5364 *) config now generates no-xxx options for missing ciphers.
5367 *) Support the EBCDIC character set (work in progress).
5368 File ebcdic.c not yet included because it has a different license.
5369 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
5371 *) Support BS2000/OSD-POSIX.
5372 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
5374 *) Make callbacks for key generation use void * instead of char *.
5377 *) Make S/MIME samples compile (not yet tested).
5380 *) Additional typesafe stacks.
5383 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
5387 Changes between 0.9.3 and 0.9.3a [29 May 1999]
5389 *) New configuration variant "sco5-gcc".
5391 *) Updated some demos.
5392 [Sean O Riordain, Wade Scholine]
5394 *) Add missing BIO_free at exit of pkcs12 application.
5397 *) Fix memory leak in conf.c.
5400 *) Updates for Win32 to assembler version of MD5.
5403 *) Set #! path to perl in apps/der_chop to where we found it
5404 instead of using a fixed path.
5407 *) SHA library changes for irix64-mips4-cc.
5410 *) Improvements for VMS support.
5414 Changes between 0.9.2b and 0.9.3 [24 May 1999]
5416 *) Bignum library bug fix. IRIX 6 passes "make test" now!
5417 This also avoids the problems with SC4.2 and unpatched SC5.
5418 [Andy Polyakov <appro@fy.chalmers.se>]
5420 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
5421 These are required because of the typesafe stack would otherwise break
5422 existing code. If old code used a structure member which used to be STACK
5423 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
5424 sk_num or sk_value it would produce an error because the num, data members
5425 are not present in STACK_OF. Now it just produces a warning. sk_set
5426 replaces the old method of assigning a value to sk_value
5427 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
5428 that does this will no longer work (and should use sk_set instead) but
5429 this could be regarded as a "questionable" behaviour anyway.
5432 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
5433 correctly handle encrypted S/MIME data.
5436 *) Change type of various DES function arguments from des_cblock
5437 (which means, in function argument declarations, pointer to char)
5438 to des_cblock * (meaning pointer to array with 8 char elements),
5439 which allows the compiler to do more typechecking; it was like
5440 that back in SSLeay, but with lots of ugly casts.
5442 Introduce new type const_des_cblock.
5445 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
5446 problems: find RecipientInfo structure that matches recipient certificate
5447 and initialise the ASN1 structures properly based on passed cipher.
5450 *) Belatedly make the BN tests actually check the results.
5453 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
5454 to and from BNs: it was completely broken. New compilation option
5455 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
5456 key elements as negative integers.
5459 *) Reorganize and speed up MD5.
5460 [Andy Polyakov <appro@fy.chalmers.se>]
5463 [Richard Levitte <richard@levitte.org>]
5465 *) New option -out to asn1parse to allow the parsed structure to be
5466 output to a file. This is most useful when combined with the -strparse
5467 option to examine the output of things like OCTET STRINGS.
5470 *) Make SSL library a little more fool-proof by not requiring any longer
5471 that SSL_set_{accept,connect}_state be called before
5472 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
5473 in many applications because usually everything *appeared* to work as
5474 intended anyway -- now it really works as intended).
5477 *) Move openssl.cnf out of lib/.
5480 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
5481 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
5482 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
5483 [Ralf S. Engelschall]
5485 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
5486 handle PKCS#7 enveloped data properly.
5487 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
5489 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
5490 copying pointers. The cert_st handling is changed by this in
5491 various ways (and thus what used to be known as ctx->default_cert
5492 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
5493 any longer when s->cert does not give us what we need).
5494 ssl_cert_instantiate becomes obsolete by this change.
5495 As soon as we've got the new code right (possibly it already is?),
5496 we have solved a couple of bugs of the earlier code where s->cert
5497 was used as if it could not have been shared with other SSL structures.
5499 Note that using the SSL API in certain dirty ways now will result
5500 in different behaviour than observed with earlier library versions:
5501 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
5502 does not influence s as it used to.
5504 In order to clean up things more thoroughly, inside SSL_SESSION
5505 we don't use CERT any longer, but a new structure SESS_CERT
5506 that holds per-session data (if available); currently, this is
5507 the peer's certificate chain and, for clients, the server's certificate
5508 and temporary key. CERT holds only those values that can have
5509 meaningful defaults in an SSL_CTX.
5512 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
5513 from the internal representation. Various PKCS#7 fixes: remove some
5514 evil casts and set the enc_dig_alg field properly based on the signing
5518 *) Allow PKCS#12 password to be set from the command line or the
5519 environment. Let 'ca' get its config file name from the environment
5520 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
5524 *) Allow certificate policies extension to use an IA5STRING for the
5525 organization field. This is contrary to the PKIX definition but
5526 VeriSign uses it and IE5 only recognises this form. Document 'x509'
5530 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
5531 without disallowing inline assembler and the like for non-pedantic builds.
5534 *) Support Borland C++ builder.
5535 [Janez Jere <jj@void.si>, modified by Ulf Möller]
5540 *) SHA-1 cleanups and performance enhancements.
5541 [Andy Polyakov <appro@fy.chalmers.se>]
5543 *) Sparc v8plus assembler for the bignum library.
5544 [Andy Polyakov <appro@fy.chalmers.se>]
5546 *) Accept any -xxx and +xxx compiler options in Configure.
5549 *) Update HPUX configuration.
5552 *) Add missing sk_<type>_unshift() function to safestack.h
5553 [Ralf S. Engelschall]
5555 *) New function SSL_CTX_use_certificate_chain_file that sets the
5556 "extra_cert"s in addition to the certificate. (This makes sense
5557 only for "PEM" format files, as chains as a whole are not
5561 *) Support verify_depth from the SSL API.
5562 x509_vfy.c had what can be considered an off-by-one-error:
5563 Its depth (which was not part of the external interface)
5564 was actually counting the number of certificates in a chain;
5565 now it really counts the depth.
5568 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
5569 instead of X509err, which often resulted in confusing error
5570 messages since the error codes are not globally unique
5571 (e.g. an alleged error in ssl3_accept when a certificate
5572 didn't match the private key).
5574 *) New function SSL_CTX_set_session_id_context that allows to set a default
5575 value (so that you don't need SSL_set_session_id_context for each
5576 connection using the SSL_CTX).
5579 *) OAEP decoding bug fix.
5582 *) Support INSTALL_PREFIX for package builders, as proposed by
5586 *) New Configure options "threads" and "no-threads". For systems
5587 where the proper compiler options are known (currently Solaris
5588 and Linux), "threads" is the default.
5591 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
5594 *) Install various scripts to $(OPENSSLDIR)/misc, not to
5595 $(INSTALLTOP)/bin -- they shouldn't clutter directories
5596 such as /usr/local/bin.
5599 *) "make linux-shared" to build shared libraries.
5600 [Niels Poppe <niels@netbox.org>]
5602 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
5605 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
5606 extension adding in x509 utility.
5609 *) Remove NOPROTO sections and error code comments.
5612 *) Partial rewrite of the DEF file generator to now parse the ANSI
5616 *) New Configure options --prefix=DIR and --openssldir=DIR.
5619 *) Complete rewrite of the error code script(s). It is all now handled
5620 by one script at the top level which handles error code gathering,
5621 header rewriting and C source file generation. It should be much better
5622 than the old method: it now uses a modified version of Ulf's parser to
5623 read the ANSI prototypes in all header files (thus the old K&R definitions
5624 aren't needed for error creation any more) and do a better job of
5625 translating function codes into names. The old 'ASN1 error code imbedded
5626 in a comment' is no longer necessary and it doesn't use .err files which
5627 have now been deleted. Also the error code call doesn't have to appear all
5628 on one line (which resulted in some large lines...).
5631 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
5634 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
5635 0 (which usually indicates a closed connection), but continue reading.
5638 *) Fix some race conditions.
5641 *) Add support for CRL distribution points extension. Add Certificate
5642 Policies and CRL distribution points documentation.
5645 *) Move the autogenerated header file parts to crypto/opensslconf.h.
5648 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
5649 8 of keying material. Merlin has also confirmed interop with this fix
5650 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
5651 [Merlin Hughes <merlin@baltimore.ie>]
5653 *) Fix lots of warnings.
5654 [Richard Levitte <levitte@stacken.kth.se>]
5656 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
5657 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
5658 [Richard Levitte <levitte@stacken.kth.se>]
5660 *) Fix problems with sizeof(long) == 8.
5661 [Andy Polyakov <appro@fy.chalmers.se>]
5663 *) Change functions to ANSI C.
5666 *) Fix typos in error codes.
5667 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
5669 *) Remove defunct assembler files from Configure.
5672 *) SPARC v8 assembler BIGNUM implementation.
5673 [Andy Polyakov <appro@fy.chalmers.se>]
5675 *) Support for Certificate Policies extension: both print and set.
5676 Various additions to support the r2i method this uses.
5679 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
5680 return a const string when you are expecting an allocated buffer.
5683 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
5684 types DirectoryString and DisplayText.
5687 *) Add code to allow r2i extensions to access the configuration database,
5688 add an LHASH database driver and add several ctx helper functions.
5691 *) Fix an evil bug in bn_expand2() which caused various BN functions to
5692 fail when they extended the size of a BIGNUM.
5695 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
5696 support typesafe stack.
5699 *) Fix typo in SSL_[gs]et_options().
5700 [Nils Frostberg <nils@medcom.se>]
5702 *) Delete various functions and files that belonged to the (now obsolete)
5703 old X509V3 handling code.
5706 *) New Configure option "rsaref".
5709 *) Don't auto-generate pem.h.
5712 *) Introduce type-safe ASN.1 SETs.
5715 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
5716 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
5718 *) Introduce type-safe STACKs. This will almost certainly break lots of code
5719 that links with OpenSSL (well at least cause lots of warnings), but fear
5720 not: the conversion is trivial, and it eliminates loads of evil casts. A
5721 few STACKed things have been converted already. Feel free to convert more.
5722 In the fullness of time, I'll do away with the STACK type altogether.
5725 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
5726 specified in <certfile> by updating the entry in the index.txt file.
5727 This way one no longer has to edit the index.txt file manually for
5728 revoking a certificate. The -revoke option does the gory details now.
5729 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
5731 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
5732 `-text' option at all and this way the `-noout -text' combination was
5733 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
5734 [Ralf S. Engelschall]
5736 *) Make sure a corresponding plain text error message exists for the
5737 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
5738 verify callback function determined that a certificate was revoked.
5739 [Ralf S. Engelschall]
5741 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
5742 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
5743 all available cipers including rc5, which was forgotten until now.
5744 In order to let the testing shell script know which algorithms
5745 are available, a new (up to now undocumented) command
5746 "openssl list-cipher-commands" is used.
5749 *) Bugfix: s_client occasionally would sleep in select() when
5750 it should have checked SSL_pending() first.
5753 *) New functions DSA_do_sign and DSA_do_verify to provide access to
5754 the raw DSA values prior to ASN.1 encoding.
5757 *) Tweaks to Configure
5758 [Niels Poppe <niels@netbox.org>]
5760 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
5764 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
5767 *) New config option to avoid instructions that are illegal on the 80386.
5768 The default code is faster, but requires at least a 486.
5771 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
5772 SSL2_SERVER_VERSION (not used at all) macros, which are now the
5773 same as SSL2_VERSION anyway.
5776 *) New "-showcerts" option for s_client.
5779 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
5780 application. Various cleanups and fixes.
5783 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
5784 modify error routines to work internally. Add error codes and PBE init
5785 to library startup routines.
5788 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
5789 packing functions to asn1 and evp. Changed function names and error
5790 codes along the way.
5793 *) PKCS12 integration: and so it begins... First of several patches to
5794 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
5795 objects to objects.h
5798 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
5799 and display support for Thawte strong extranet extension.
5802 *) Add LinuxPPC support.
5803 [Jeff Dubrule <igor@pobox.org>]
5805 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
5806 bn_div_words in alpha.s.
5807 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
5809 *) Make sure the RSA OAEP test is skipped under -DRSAref because
5810 OAEP isn't supported when OpenSSL is built with RSAref.
5811 [Ulf Moeller <ulf@fitug.de>]
5813 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
5814 so they no longer are missing under -DNOPROTO.
5815 [Soren S. Jorvang <soren@t.dk>]
5818 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
5820 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
5821 doesn't work when the session is reused. Coming soon!
5824 *) Fix a security hole, that allows sessions to be reused in the wrong
5825 context thus bypassing client cert protection! All software that uses
5826 client certs and session caches in multiple contexts NEEDS PATCHING to
5827 allow session reuse! A fuller solution is in the works.
5828 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
5830 *) Some more source tree cleanups (removed obsolete files
5831 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
5832 permission on "config" script to be executable) and a fix for the INSTALL
5834 [Ulf Moeller <ulf@fitug.de>]
5836 *) Remove some legacy and erroneous uses of malloc, free instead of
5838 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
5840 *) Make rsa_oaep_test return non-zero on error.
5841 [Ulf Moeller <ulf@fitug.de>]
5843 *) Add support for native Solaris shared libraries. Configure
5844 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
5845 if someone would make that last step automatic.
5846 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
5848 *) ctx_size was not built with the right compiler during "make links". Fixed.
5851 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
5852 except NULL ciphers". This means the default cipher list will no longer
5853 enable NULL ciphers. They need to be specifically enabled e.g. with
5854 the string "DEFAULT:eNULL".
5857 *) Fix to RSA private encryption routines: if p < q then it would
5858 occasionally produce an invalid result. This will only happen with
5859 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
5862 *) Be less restrictive and allow also `perl util/perlpath.pl
5863 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
5864 because this way one can also use an interpreter named `perl5' (which is
5865 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
5866 installed as `perl').
5867 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
5869 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
5870 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
5872 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
5873 advapi32.lib to Win32 build and change the pem test comparision
5874 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
5875 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
5876 and crypto/des/ede_cbcm_enc.c.
5879 *) DES quad checksum was broken on big-endian architectures. Fixed.
5882 *) Comment out two functions in bio.h that aren't implemented. Fix up the
5883 Win32 test batch file so it (might) work again. The Win32 test batch file
5884 is horrible: I feel ill....
5887 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
5888 in e_os.h. Audit of header files to check ANSI and non ANSI
5889 sections: 10 functions were absent from non ANSI section and not exported
5890 from Windows DLLs. Fixed up libeay.num for new functions.
5893 *) Make `openssl version' output lines consistent.
5894 [Ralf S. Engelschall]
5896 *) Fix Win32 symbol export lists for BIO functions: Added
5897 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
5898 to ms/libeay{16,32}.def.
5899 [Ralf S. Engelschall]
5901 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
5902 fine under Unix and passes some trivial tests I've now added. But the
5903 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
5904 added to make sure no one expects that this stuff really works in the
5905 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
5906 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
5908 [Ralf S. Engelschall]
5910 *) Fix the generation of two part addresses in perl.
5911 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
5913 *) Add config entry for Linux on MIPS.
5914 [John Tobey <jtobey@channel1.com>]
5916 *) Make links whenever Configure is run, unless we are on Windoze.
5919 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
5920 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
5924 *) Add a useful kludge to allow package maintainers to specify compiler and
5925 other platforms details on the command line without having to patch the
5926 Configure script everytime: One now can use ``perl Configure
5927 <id>:<details>'', i.e. platform ids are allowed to have details appended
5928 to them (seperated by colons). This is treated as there would be a static
5929 pre-configured entry in Configure's %table under key <id> with value
5930 <details> and ``perl Configure <id>'' is called. So, when you want to
5931 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
5932 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
5933 now, which overrides the FreeBSD-elf entry on-the-fly.
5934 [Ralf S. Engelschall]
5936 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
5939 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
5940 on the `perl Configure ...' command line. This way one can compile
5941 OpenSSL libraries with Position Independent Code (PIC) which is needed
5942 for linking it into DSOs.
5943 [Ralf S. Engelschall]
5945 *) Remarkably, export ciphers were totally broken and no-one had noticed!
5949 *) Cleaned up the LICENSE document: The official contact for any license
5950 questions now is the OpenSSL core team under openssl-core@openssl.org.
5951 And add a paragraph about the dual-license situation to make sure people
5952 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
5953 to the OpenSSL toolkit.
5954 [Ralf S. Engelschall]
5956 *) General source tree makefile cleanups: Made `making xxx in yyy...'
5957 display consistent in the source tree and replaced `/bin/rm' by `rm'.
5958 Additonally cleaned up the `make links' target: Remove unnecessary
5959 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
5960 to speed processing and no longer clutter the display with confusing
5961 stuff. Instead only the actually done links are displayed.
5962 [Ralf S. Engelschall]
5964 *) Permit null encryption ciphersuites, used for authentication only. It used
5965 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
5966 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
5970 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
5971 signed attributes when verifying signatures (this would break them),
5972 the detached data encoding was wrong and public keys obtained using
5973 X509_get_pubkey() weren't freed.
5976 *) Add text documentation for the BUFFER functions. Also added a work around
5977 to a Win95 console bug. This was triggered by the password read stuff: the
5978 last character typed gets carried over to the next fread(). If you were
5979 generating a new cert request using 'req' for example then the last
5980 character of the passphrase would be CR which would then enter the first
5984 *) Added the new `Includes OpenSSL Cryptography Software' button as
5985 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
5986 button and can be used by applications based on OpenSSL to show the
5987 relationship to the OpenSSL project.
5988 [Ralf S. Engelschall]
5990 *) Remove confusing variables in function signatures in files
5991 ssl/ssl_lib.c and ssl/ssl.h.
5992 [Lennart Bong <lob@kulthea.stacken.kth.se>]
5994 *) Don't install bss_file.c under PREFIX/include/
5995 [Lennart Bong <lob@kulthea.stacken.kth.se>]
5997 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
5998 functions that return function pointers and has support for NT specific
5999 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
6000 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
6001 unsigned to signed types: this was killing the Win32 compile.
6004 *) Add new certificate file to stack functions,
6005 SSL_add_dir_cert_subjects_to_stack() and
6006 SSL_add_file_cert_subjects_to_stack(). These largely supplant
6007 SSL_load_client_CA_file(), and can be used to add multiple certs easily
6008 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
6009 This means that Apache-SSL and similar packages don't have to mess around
6010 to add as many CAs as they want to the preferred list.
6013 *) Experiment with doxygen documentation. Currently only partially applied to
6015 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
6016 openssl.doxy as the configuration file.
6019 *) Get rid of remaining C++-style comments which strict C compilers hate.
6020 [Ralf S. Engelschall, pointed out by Carlos Amengual]
6022 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
6023 compiled in by default: it has problems with large keys.
6026 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
6027 DH private keys and/or callback functions which directly correspond to
6028 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
6029 is needed for applications which have to configure certificates on a
6030 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
6032 For the RSA certificate situation is makes no difference, but
6033 for the DSA certificate situation this fixes the "no shared cipher"
6034 problem where the OpenSSL cipher selection procedure failed because the
6035 temporary keys were not overtaken from the context and the API provided
6036 no way to reconfigure them.
6037 The new functions now let applications reconfigure the stuff and they
6038 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
6039 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
6040 non-public-API function ssl_cert_instantiate() is used as a helper
6041 function and also to reduce code redundancy inside ssl_rsa.c.
6042 [Ralf S. Engelschall]
6044 *) Move s_server -dcert and -dkey options out of the undocumented feature
6045 area because they are useful for the DSA situation and should be
6046 recognized by the users.
6047 [Ralf S. Engelschall]
6049 *) Fix the cipher decision scheme for export ciphers: the export bits are
6050 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
6051 SSL_EXP_MASK. So, the original variable has to be used instead of the
6052 already masked variable.
6053 [Richard Levitte <levitte@stacken.kth.se>]
6055 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
6056 [Richard Levitte <levitte@stacken.kth.se>]
6058 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
6059 from `int' to `unsigned int' because it's a length and initialized by
6060 EVP_DigestFinal() which expects an `unsigned int *'.
6061 [Richard Levitte <levitte@stacken.kth.se>]
6063 *) Don't hard-code path to Perl interpreter on shebang line of Configure
6064 script. Instead use the usual Shell->Perl transition trick.
6065 [Ralf S. Engelschall]
6067 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
6068 (in addition to RSA certificates) to match the behaviour of `openssl dsa
6069 -noout -modulus' as it's already the case for `openssl rsa -noout
6070 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
6071 currently the public key is printed (a decision which was already done by
6072 `openssl dsa -modulus' in the past) which serves a similar purpose.
6073 Additionally the NO_RSA no longer completely removes the whole -modulus
6074 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
6076 [Ralf S. Engelschall]
6078 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
6079 BIO. See the source (crypto/evp/bio_ok.c) for more info.
6080 [Arne Ansper <arne@ats.cyber.ee>]
6082 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
6083 to be added. Now both 'req' and 'ca' can use new objects defined in the
6087 *) Add cool BIO that does syslog (or event log on NT).
6088 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
6090 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
6091 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
6092 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
6093 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
6096 *) Add preliminary config info for new extension code.
6099 *) Make RSA_NO_PADDING really use no padding.
6100 [Ulf Moeller <ulf@fitug.de>]
6102 *) Generate errors when private/public key check is done.
6105 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
6106 for some CRL extensions and new objects added.
6109 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
6110 key usage extension and fuller support for authority key id.
6113 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
6114 padding method for RSA, which is recommended for new applications in PKCS
6115 #1 v2.0 (RFC 2437, October 1998).
6116 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
6117 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
6118 against Bleichbacher's attack on RSA.
6119 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
6122 *) Updates to the new SSL compression code
6123 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
6125 *) Fix so that the version number in the master secret, when passed
6126 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
6127 (because the server will not accept higher), that the version number
6128 is 0x03,0x01, not 0x03,0x00
6129 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
6131 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
6132 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
6133 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
6136 *) Support for RAW extensions where an arbitrary extension can be
6137 created by including its DER encoding. See apps/openssl.cnf for
6141 *) Make sure latest Perl versions don't interpret some generated C array
6142 code as Perl array code in the crypto/err/err_genc.pl script.
6143 [Lars Weber <3weber@informatik.uni-hamburg.de>]
6145 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
6146 not many people have the assembler. Various Win32 compilation fixes and
6147 update to the INSTALL.W32 file with (hopefully) more accurate Win32
6151 *) Modify configure script 'Configure' to automatically create crypto/date.h
6152 file under Win32 and also build pem.h from pem.org. New script
6153 util/mkfiles.pl to create the MINFO file on environments that can't do a
6154 'make files': perl util/mkfiles.pl >MINFO should work.
6157 *) Major rework of DES function declarations, in the pursuit of correctness
6158 and purity. As a result, many evil casts evaporated, and some weirdness,
6159 too. You may find this causes warnings in your code. Zapping your evil
6160 casts will probably fix them. Mostly.
6163 *) Fix for a typo in asn1.h. Bug fix to object creation script
6164 obj_dat.pl. It considered a zero in an object definition to mean
6165 "end of object": none of the objects in objects.h have any zeros
6166 so it wasn't spotted.
6167 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
6169 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
6170 Masking (CBCM). In the absence of test vectors, the best I have been able
6171 to do is check that the decrypt undoes the encrypt, so far. Send me test
6172 vectors if you have them.
6175 *) Correct calculation of key length for export ciphers (too much space was
6176 allocated for null ciphers). This has not been tested!
6179 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
6180 message is now correct (it understands "crypto" and "ssl" on its
6181 command line). There is also now an "update" option. This will update
6182 the util/ssleay.num and util/libeay.num files with any new functions.
6184 perl util/mkdef.pl crypto ssl update
6185 it will update them.
6188 *) Overhauled the Perl interface (perl/*):
6189 - ported BN stuff to OpenSSL's different BN library
6190 - made the perl/ source tree CVS-aware
6191 - renamed the package from SSLeay to OpenSSL (the files still contain
6192 their history because I've copied them in the repository)
6193 - removed obsolete files (the test scripts will be replaced
6194 by better Test::Harness variants in the future)
6195 [Ralf S. Engelschall]
6197 *) First cut for a very conservative source tree cleanup:
6198 1. merge various obsolete readme texts into doc/ssleay.txt
6199 where we collect the old documents and readme texts.
6200 2. remove the first part of files where I'm already sure that we no
6201 longer need them because of three reasons: either they are just temporary
6202 files which were left by Eric or they are preserved original files where
6203 I've verified that the diff is also available in the CVS via "cvs diff
6204 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
6205 the crypto/md/ stuff).
6206 [Ralf S. Engelschall]
6208 *) More extension code. Incomplete support for subject and issuer alt
6209 name, issuer and authority key id. Change the i2v function parameters
6210 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
6211 what that's for :-) Fix to ASN1 macro which messed up
6212 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
6215 *) Preliminary support for ENUMERATED type. This is largely copied from the
6219 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
6220 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
6222 *) Make sure `make rehash' target really finds the `openssl' program.
6223 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
6225 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
6226 like to hear about it if this slows down other processors.
6229 *) Add CygWin32 platform information to Configure script.
6230 [Alan Batie <batie@aahz.jf.intel.com>]
6232 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
6233 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
6235 *) New program nseq to manipulate netscape certificate sequences
6238 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
6242 *) Fixes to BN code. Previously the default was to define BN_RECURSION
6243 but the BN code had some problems that would cause failures when
6244 doing certificate verification and some other functions.
6245 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
6247 *) Add ASN1 and PEM code to support netscape certificate sequences.
6250 *) Add ASN1 and PEM code to support netscape certificate sequences.
6253 *) Add several PKIX and private extended key usage OIDs.
6256 *) Modify the 'ca' program to handle the new extension code. Modify
6257 openssl.cnf for new extension format, add comments.
6260 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
6261 and add a sample to openssl.cnf so req -x509 now adds appropriate
6265 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
6266 error code, add initial support to X509_print() and x509 application.
6269 *) Takes a deep breath and start addding X509 V3 extension support code. Add
6270 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
6271 stuff is currently isolated and isn't even compiled yet.
6274 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
6275 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
6276 Removed the versions check from X509 routines when loading extensions:
6277 this allows certain broken certificates that don't set the version
6278 properly to be processed.
6281 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
6282 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
6283 can still be regenerated with "make depend".
6286 *) Spelling mistake in C version of CAST-128.
6287 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
6289 *) Changes to the error generation code. The perl script err-code.pl
6290 now reads in the old error codes and retains the old numbers, only
6291 adding new ones if necessary. It also only changes the .err files if new
6292 codes are added. The makefiles have been modified to only insert errors
6293 when needed (to avoid needlessly modifying header files). This is done
6294 by only inserting errors if the .err file is newer than the auto generated
6295 C file. To rebuild all the error codes from scratch (the old behaviour)
6296 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
6297 or delete all the .err files.
6300 *) CAST-128 was incorrectly implemented for short keys. The C version has
6301 been fixed, but is untested. The assembler versions are also fixed, but
6302 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
6303 to regenerate it if needed.
6304 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
6305 Hagino <itojun@kame.net>]
6307 *) File was opened incorrectly in randfile.c.
6308 [Ulf Möller <ulf@fitug.de>]
6310 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
6311 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
6312 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
6313 al: it's just almost always a UTCTime. Note this patch adds new error
6314 codes so do a "make errors" if there are problems.
6317 *) Correct Linux 1 recognition in config.
6318 [Ulf Möller <ulf@fitug.de>]
6320 *) Remove pointless MD5 hash when using DSA keys in ca.
6321 [Anonymous <nobody@replay.com>]
6323 *) Generate an error if given an empty string as a cert directory. Also
6324 generate an error if handed NULL (previously returned 0 to indicate an
6325 error, but didn't set one).
6326 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
6328 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
6331 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
6332 parameters. This was causing a warning which killed off the Win32 compile.
6335 *) Remove C++ style comments from crypto/bn/bn_local.h.
6336 [Neil Costigan <neil.costigan@celocom.com>]
6338 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
6339 based on a text string, looking up short and long names and finally
6340 "dot" format. The "dot" format stuff didn't work. Added new function
6341 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
6342 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
6343 OID is not part of the table.
6346 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
6347 X509_LOOKUP_by_alias().
6350 *) Sort openssl functions by name.
6353 *) Get the gendsa program working (hopefully) and add it to app list. Remove
6354 encryption from sample DSA keys (in case anyone is interested the password
6358 *) Make _all_ *_free functions accept a NULL pointer.
6359 [Frans Heymans <fheymans@isaserver.be>]
6361 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
6363 [Anonymous <nobody@replay.com>]
6365 *) s_server should send the CAfile as acceptable CAs, not its own cert.
6366 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
6368 *) Don't blow it for numeric -newkey arguments to apps/req.
6369 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
6371 *) Temp key "for export" tests were wrong in s3_srvr.c.
6372 [Anonymous <nobody@replay.com>]
6374 *) Add prototype for temp key callback functions
6375 SSL_CTX_set_tmp_{rsa,dh}_callback().
6378 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
6379 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
6382 *) X509_name_add_entry() freed the wrong thing after an error.
6383 [Arne Ansper <arne@ats.cyber.ee>]
6385 *) rsa_eay.c would attempt to free a NULL context.
6386 [Arne Ansper <arne@ats.cyber.ee>]
6388 *) BIO_s_socket() had a broken should_retry() on Windoze.
6389 [Arne Ansper <arne@ats.cyber.ee>]
6391 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
6392 [Arne Ansper <arne@ats.cyber.ee>]
6394 *) Make sure the already existing X509_STORE->depth variable is initialized
6395 in X509_STORE_new(), but document the fact that this variable is still
6396 unused in the certificate verification process.
6397 [Ralf S. Engelschall]
6399 *) Fix the various library and apps files to free up pkeys obtained from
6400 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
6403 *) Fix reference counting in X509_PUBKEY_get(). This makes
6404 demos/maurice/example2.c work, amongst others, probably.
6405 [Steve Henson and Ben Laurie]
6407 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
6408 `openssl' and second, the shortcut symlinks for the `openssl <command>'
6409 are no longer created. This way we have a single and consistent command
6410 line interface `openssl <command>', similar to `cvs <command>'.
6411 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
6413 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
6414 BIT STRING wrapper always have zero unused bits.
6417 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
6420 *) Make the top-level INSTALL documentation easier to understand.
6423 *) Makefiles updated to exit if an error occurs in a sub-directory
6424 make (including if user presses ^C) [Paul Sutton]
6426 *) Make Montgomery context stuff explicit in RSA data structure.
6429 *) Fix build order of pem and err to allow for generated pem.h.
6432 *) Fix renumbering bug in X509_NAME_delete_entry().
6435 *) Enhanced the err-ins.pl script so it makes the error library number
6436 global and can add a library name. This is needed for external ASN1 and
6437 other error libraries.
6440 *) Fixed sk_insert which never worked properly.
6443 *) Fix ASN1 macros so they can handle indefinite length construted
6444 EXPLICIT tags. Some non standard certificates use these: they can now
6448 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
6449 into a single doc/ssleay.txt bundle. This way the information is still
6450 preserved but no longer messes up this directory. Now it's new room for
6451 the new set of documenation files.
6452 [Ralf S. Engelschall]
6454 *) SETs were incorrectly DER encoded. This was a major pain, because they
6455 shared code with SEQUENCEs, which aren't coded the same. This means that
6456 almost everything to do with SETs or SEQUENCEs has either changed name or
6457 number of arguments.
6458 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
6460 *) Fix test data to work with the above.
6463 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
6464 was already fixed by Eric for 0.9.1 it seems.
6465 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
6467 *) Autodetect FreeBSD3.
6470 *) Fix various bugs in Configure. This affects the following platforms:
6474 unixware-2.0-pentium
6478 *) Eliminate generated files from CVS. Reorder tests to regenerate files
6479 before they are needed.
6482 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
6486 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
6488 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
6489 changed SSLeay to OpenSSL in version strings.
6490 [Ralf S. Engelschall]
6492 *) Some fixups to the top-level documents.
6495 *) Fixed the nasty bug where rsaref.h was not found under compile-time
6496 because the symlink to include/ was missing.
6497 [Ralf S. Engelschall]
6499 *) Incorporated the popular no-RSA/DSA-only patches
6500 which allow to compile a RSA-free SSLeay.
6501 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
6503 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
6504 when "ssleay" is still not found.
6505 [Ralf S. Engelschall]
6507 *) Added more platforms to Configure: Cray T3E, HPUX 11,
6508 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
6510 *) Updated the README file.
6511 [Ralf S. Engelschall]
6513 *) Added various .cvsignore files in the CVS repository subdirs
6514 to make a "cvs update" really silent.
6515 [Ralf S. Engelschall]
6517 *) Recompiled the error-definition header files and added
6518 missing symbols to the Win32 linker tables.
6519 [Ralf S. Engelschall]
6521 *) Cleaned up the top-level documents;
6522 o new files: CHANGES and LICENSE
6523 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
6524 o merged COPYRIGHT into LICENSE
6525 o removed obsolete TODO file
6526 o renamed MICROSOFT to INSTALL.W32
6527 [Ralf S. Engelschall]
6529 *) Removed dummy files from the 0.9.1b source tree:
6530 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
6531 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
6532 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
6533 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
6534 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
6535 [Ralf S. Engelschall]
6537 *) Added various platform portability fixes.
6540 *) The Genesis of the OpenSSL rpject:
6541 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
6542 Young and Tim J. Hudson created while they were working for C2Net until
6544 [The OpenSSL Project]
6547 Changes between 0.9.0b and 0.9.1b [not released]
6549 *) Updated a few CA certificates under certs/
6552 *) Changed some BIGNUM api stuff.
6555 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
6556 DGUX x86, Linux Alpha, etc.
6559 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
6560 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
6564 *) Add -strparse option to asn1pars program which parses nested
6566 [Dr Stephen Henson <shenson@bigfoot.com>]
6568 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
6571 *) DSA fix for "ca" program.
6574 *) Added "-genkey" option to "dsaparam" program.
6577 *) Added RIPE MD160 (rmd160) message digest.
6580 *) Added -a (all) option to "ssleay version" command.
6583 *) Added PLATFORM define which is the id given to Configure.
6586 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
6589 *) Extended the ASN.1 parser routines.
6592 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
6595 *) Added a BN_CTX to the BN library.
6598 *) Fixed the weak key values in DES library
6601 *) Changed API in EVP library for cipher aliases.
6604 *) Added support for RC2/64bit cipher.
6607 *) Converted the lhash library to the crypto/mem.c functions.
6610 *) Added more recognized ASN.1 object ids.
6613 *) Added more RSA padding checks for SSL/TLS.
6616 *) Added BIO proxy/filter functionality.
6619 *) Added extra_certs to SSL_CTX which can be used
6620 send extra CA certificates to the client in the CA cert chain sending
6621 process. It can be configured with SSL_CTX_add_extra_chain_cert().
6624 *) Now Fortezza is denied in the authentication phase because
6625 this is key exchange mechanism is not supported by SSLeay at all.
6628 *) Additional PKCS1 checks.
6631 *) Support the string "TLSv1" for all TLS v1 ciphers.
6634 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
6635 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
6638 *) Fixed a few memory leaks.
6641 *) Fixed various code and comment typos.
6644 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
6645 bytes sent in the client random.
6646 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob