5 Changes between 0.9.7 and 0.9.8 [xx XXX xxxx]
7 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
8 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
9 will now compute a table of multiples of the generator that
10 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
11 faster (notably in the case of a single point multiplication,
13 [Nils Larsch, Bodo Moeller]
15 *) IPv6 support for certificate extensions. The various extensions
16 which use the IP:a.b.c.d can now take IPv6 addresses using the
17 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
21 *) Added an ENGINE that implements RSA by performing private key
22 exponentiations with the GMP library. The conversions to and from
23 GMP's mpz_t format aren't optimised nor are any montgomery forms
24 cached, and on x86 it appears OpenSSL's own performance has caught up.
25 However there are likely to be other architectures where GMP could
26 provide a boost. This ENGINE is not built in by default, but it can be
27 specified at Configure time and should be accompanied by the necessary
29 ./config -DOPENSSL_USE_GMP -lgmp
32 *) "openssl engine" will not display ENGINE/DSO load failure errors when
33 testing availability of engines with "-t" - the old behaviour is
34 produced by increasing the feature's verbosity with "-tt".
37 *) ECDSA routines: under certain error conditions uninitialized BN objects
38 could be freed. Solution: make sure initialization is performed early
39 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
43 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
44 and DH_METHOD (eg. by ENGINE implementations) to override the normal
45 software implementations. For DSA and DH, parameter generation can
46 also be overriden by providing the appropriate method callbacks.
49 *) Change the "progress" mechanism used in key-generation and
50 primality testing to functions that take a new BN_GENCB pointer in
51 place of callback/argument pairs. The new API functions have "_ex"
52 postfixes and the older functions are reimplemented as wrappers for
53 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
54 declarations of the old functions to help (graceful) attempts to
55 migrate to the new functions. Also, the new key-generation API
56 functions operate on a caller-supplied key-structure and return
57 success/failure rather than returning a key or NULL - this is to
58 help make "keygen" another member function of RSA_METHOD etc.
60 Example for using the new callback interface:
62 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
66 BN_GENCB_set(&my_cb, my_callback, my_arg);
68 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
69 /* For the meaning of a, b in calls to my_callback(), see the
70 * documentation of the function that calls the callback.
71 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
72 * my_callback should return 1 if it wants BN_is_prime_ex()
73 * to continue, or 0 to stop.
78 *) Change the ZLIB compression method to be stateful, and make it
79 available to TLS with the number defined in
80 draft-ietf-tls-compression-04.txt.
83 *) Add the ASN.1 structures and functions for CertificatePair, which
84 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
86 CertificatePair ::= SEQUENCE {
87 forward [0] Certificate OPTIONAL,
88 reverse [1] Certificate OPTIONAL,
89 -- at least one of the pair shall be present -- }
91 Also implement the PEM functions to read and write certificate
92 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
94 This needed to be defined, mostly for the sake of the LDAP
95 attribute crossCertificatePair, but may prove useful elsewhere as
99 *) Make it possible to inhibit symlinking of shared libraries in
100 Makefile.shared, for Cygwin's sake.
103 *) Extend the BIGNUM API by creating new macros that behave like
106 void BN_set_sign(BIGNUM *a, int neg);
107 int BN_get_sign(const BIGNUM *a);
109 and avoid the need to access 'a->neg' directly in applications.
110 [Nils Larsch <nla@trustcenter.de>]
112 *) Implement fast modular reduction for pseudo-Mersenne primes
113 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
114 EC_GROUP_new_curve_GFp() will now automatically use this
116 [Nils Larsch <nla@trustcenter.de>]
118 *) Add new lock type (CRYPTO_LOCK_BN).
121 *) Change the ENGINE framework to automatically load engines
122 dynamically from specific directories unless they could be
123 found to already be built in or loaded. Move all the
124 current engines except for the cryptodev one to a new
126 The engines in engines/ are built as shared libraries if
127 the "shared" options was given to ./Configure or ./config.
128 Otherwise, they are inserted in libcrypto.a.
129 /usr/local/ssl/engines is the default directory for dynamic
130 engines, but that can be overriden at configure time through
131 the usual use of --prefix and/or --openssldir, and at run
132 time with the environment variable OPENSSL_ENGINES.
133 [Geoff Thorpe and Richard Levitte]
135 *) Add Makefile.shared, a helper makefile to build shared
136 libraries. Addapt Makefile.org.
139 *) Add version info to Win32 DLLs.
140 [Peter 'Luna' Runestig" <peter@runestig.com>]
142 *) Add new 'medium level' PKCS#12 API. Certificates and keys
143 can be added using this API to created arbitrary PKCS#12
144 files while avoiding the low level API.
146 New options to PKCS12_create(), key or cert can be NULL and
147 will then be omitted from the output file. The encryption
148 algorithm NIDs can be set to -1 for no encryption, the mac
149 iteration count can be set to 0 to omit the mac.
151 Enhance pkcs12 utility by making the -nokeys and -nocerts
152 options work when creating a PKCS#12 file. New option -nomac
153 to omit the mac, NONE can be set for an encryption algorithm.
154 New code is modified to use the enhanced PKCS12_create()
155 instead of the low level API.
158 *) Extend ASN1 encoder to support indefinite length constructed
159 encoding. This can output sequences tags and octet strings in
160 this form. Modify pk7_asn1.c to support indefinite length
161 encoding. This is experimental and needs additional code to
162 be useful, such as an ASN1 bio and some enhanced streaming
165 Extend template encode functionality so that tagging is passed
166 down to the template encoder.
169 *) Let 'openssl req' fail if an argument to '-newkey' is not
170 recognized instead of using RSA as a default.
173 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
174 As these are not official, they are not included in "ALL";
175 the "ECCdraft" ciphersuite group alias can be used to select them.
176 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
178 *) Add ECDH engine support.
179 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
181 *) Add ECDH in new directory crypto/ecdh/.
182 TODO: more general interface (return x coordinate, not its hash)
183 TODO: bug: pad x with leading zeros if necessary
184 [Douglas Stebila (Sun Microsystems Laboratories)]
186 *) Let BN_rand_range() abort with an error after 100 iterations
187 without success (which indicates a broken PRNG).
190 *) Change BN_mod_sqrt() so that it verifies that the input value
191 is really the square of the return value. (Previously,
192 BN_mod_sqrt would show GIGO behaviour.)
195 *) Add named elliptic curves over binary fields from X9.62, SECG,
196 and WAP/WTLS; add OIDs that were still missing.
198 [Sheueling Chang Shantz and Douglas Stebila
199 (Sun Microsystems Laboratories)]
201 *) Extend the EC library for elliptic curves over binary fields
202 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
205 EC_GF2m_simple_method
209 EC_GROUP_new_curve_GF2m
210 EC_GROUP_set_curve_GF2m
211 EC_GROUP_get_curve_GF2m
212 EC_POINT_set_affine_coordinates_GF2m
213 EC_POINT_get_affine_coordinates_GF2m
214 EC_POINT_set_compressed_coordinates_GF2m
216 Point compression for binary fields is disabled by default for
217 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
220 As binary polynomials are represented as BIGNUMs, various members
221 of the EC_GROUP and EC_POINT data structures can be shared
222 between the implementations for prime fields and binary fields;
223 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
224 are essentially identical to their ..._GFp counterparts.
225 (For simplicity, the '..._GFp' prefix has been dropped from
226 various internal method names.)
228 An internal 'field_div' method (similar to 'field_mul' and
229 'field_sqr') has been added; this is used only for binary fields.
231 [Sheueling Chang Shantz and Douglas Stebila
232 (Sun Microsystems Laboratories)]
234 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
235 through methods ('mul', 'precompute_mult').
237 The generic implementations (now internally called 'ec_wNAF_mul'
238 and 'ec_wNAF_precomputed_mult') remain the default if these
239 methods are undefined.
241 [Sheueling Chang Shantz and Douglas Stebila
242 (Sun Microsystems Laboratories)]
244 *) New function EC_GROUP_get_degree, which is defined through
245 EC_METHOD. For curves over prime fields, this returns the bit
246 length of the modulus.
248 [Sheueling Chang Shantz and Douglas Stebila
249 (Sun Microsystems Laboratories)]
251 *) New functions EC_GROUP_dup, EC_POINT_dup.
252 (These simply call ..._new and ..._copy).
254 [Sheueling Chang Shantz and Douglas Stebila
255 (Sun Microsystems Laboratories)]
257 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
258 Polynomials are represented as BIGNUMs (where the sign bit is not
259 used) in the following functions [macros]:
262 BN_GF2m_sub [= BN_GF2m_add]
263 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
264 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
265 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
267 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
268 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
269 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
270 BN_GF2m_cmp [= BN_ucmp]
272 (Note that only the 'mod' functions are actually for fields GF(2^m).
273 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
275 For some functions, an the irreducible polynomial defining a
276 field can be given as an 'unsigned int[]' with strictly
277 decreasing elements giving the indices of those bits that are set;
278 i.e., p[] represents the polynomial
279 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
281 p[0] > p[1] > ... > p[k] = 0.
282 This applies to the following functions:
287 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
288 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
291 BN_GF2m_mod_solve_quad_arr
295 Conversion can be performed by the following functions:
300 bntest.c has additional tests for binary polynomial arithmetic.
302 Two implementations for BN_GF2m_mod_div() are available.
303 The default algorithm simply uses BN_GF2m_mod_inv() and
304 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
305 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
306 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
308 [Sheueling Chang Shantz and Douglas Stebila
309 (Sun Microsystems Laboratories)]
311 *) Add new error code 'ERR_R_DISABLED' that can be used when some
312 functionality is disabled at compile-time.
313 [Douglas Stebila <douglas.stebila@sun.com>]
315 *) Change default behaviour of 'openssl asn1parse' so that more
316 information is visible when viewing, e.g., a certificate:
318 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
319 mode the content of non-printable OCTET STRINGs is output in a
320 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
321 avoid the appearance of a printable string.
322 [Nils Larsch <nla@trustcenter.de>]
324 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
326 EC_GROUP_set_asn1_flag()
327 EC_GROUP_get_asn1_flag()
328 EC_GROUP_set_point_conversion_form()
329 EC_GROUP_get_point_conversion_form()
330 These control ASN1 encoding details:
331 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
332 has been set to OPENSSL_EC_NAMED_CURVE.
333 - Points are encoded in uncompressed form by default; options for
334 asn1_for are as for point2oct, namely
335 POINT_CONVERSION_COMPRESSED
336 POINT_CONVERSION_UNCOMPRESSED
337 POINT_CONVERSION_HYBRID
339 Also add 'seed' and 'seed_len' members to EC_GROUP with access
343 EC_GROUP_get_seed_len()
344 This is used only for ASN1 purposes (so far).
345 [Nils Larsch <nla@trustcenter.de>]
347 *) Add 'field_type' member to EC_METHOD, which holds the NID
348 of the appropriate field type OID. The new function
349 EC_METHOD_get_field_type() returns this value.
350 [Nils Larsch <nla@trustcenter.de>]
357 providing useful interfaces to EC_POINT_point2oct() and
358 EC_POINT_oct2point().
359 [Nils Larsch <nla@trustcenter.de>]
361 *) Change internals of the EC library so that the functions
362 EC_GROUP_set_generator()
363 EC_GROUP_get_generator()
365 EC_GROUP_get_cofactor()
366 are implemented directly in crypto/ec/ec_lib.c and not dispatched
367 to methods, which would lead to unnecessary code duplication when
368 adding different types of curves.
369 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
371 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
372 arithmetic, and such that modified wNAFs are generated
373 (which avoid length expansion in many cases).
376 *) Add a function EC_GROUP_check_discriminant() (defined via
377 EC_METHOD) that verifies that the curve discriminant is non-zero.
379 Add a function EC_GROUP_check() that makes some sanity tests
380 on a EC_GROUP, its generator and order. This includes
381 EC_GROUP_check_discriminant().
382 [Nils Larsch <nla@trustcenter.de>]
384 *) Add ECDSA in new directory crypto/ecdsa/.
386 Add applications 'openssl ecparam' and 'openssl ecdsa'
387 (these are based on 'openssl dsaparam' and 'openssl dsa').
389 ECDSA support is also included in various other files across the
390 library. Most notably,
391 - 'openssl req' now has a '-newkey ecdsa:file' option;
392 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
393 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
394 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
395 them suitable for ECDSA where domain parameters must be
396 extracted before the specific public key;
397 - ECDSA engine support has been added.
398 [Nils Larsch <nla@trustcenter.de>]
400 *) Include some named elliptic curves, and add OIDs from X9.62,
401 SECG, and WAP/WTLS. Each curve can be obtained from the new
403 EC_GROUP_new_by_nid(),
404 and the list of available named curves can be obtained with
405 EC_get_builtin_curves().
406 Also add a 'curve_name' member to EC_GROUP objects, which can be
410 [Nils Larsch <nla@trustcenter.de, Bodo Moeller]
412 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
413 was actually never needed) and in BN_mul(). The removal in BN_mul()
414 required a small change in bn_mul_part_recursive() and the addition
415 of the functions bn_cmp_part_words(), bn_sub_part_words() and
416 bn_add_part_words(), which do the same thing as bn_cmp_words(),
417 bn_sub_words() and bn_add_words() except they take arrays with
421 Changes between 0.9.7 and 0.9.7a [XX xxx 2003]
423 *) Add the possibility to build without the ENGINE framework.
424 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
426 *) Under Win32 gmtime() can return NULL: check return value in
427 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
430 *) DSA routines: under certain error conditions uninitialized BN objects
431 could be freed. Solution: make sure initialization is performed early
432 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
433 Nils Larsch <nla@trustcenter.de> via PR#459)
436 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
437 checked on reconnect on the client side, therefore session resumption
438 could still fail with a "ssl session id is different" error. This
439 behaviour is masked when SSL_OP_ALL is used due to
440 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
441 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
445 *) IA-32 assembler support enhancements: unified ELF targets, support
446 for SCO/Caldera platforms, fix for Cygwin shared build.
449 *) Add support for FreeBSD on sparc64. As a consequence, support for
450 FreeBSD on non-x86 processors is separate from x86 processors on
451 the config script, much like the NetBSD support.
452 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
454 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
456 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
457 code (06) was taken as the first octet of the session ID and the last
458 octet was ignored consequently. As a result SSLv2 client side session
459 caching could not have worked due to the session ID mismatch between
461 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
465 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
466 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
470 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
471 seems that in spite of existing for more than a year, many application
472 author have done nothing to provide the necessary callbacks, which
473 means that this particular engine will not work properly anywhere.
474 This is a very unfortunate situation which forces us, in the name
475 of usability, to give the hw_ncipher.c a static lock, which is part
477 NOTE: This is for the 0.9.7 series ONLY. This hack will never
478 appear in 0.9.8 or later. We EXPECT application authors to have
479 dealt properly with this when 0.9.8 is released (unless we actually
480 make such changes in the libcrypto locking code that changes will
481 have to be made anyway).
484 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
485 octets have been read, EOF or an error occurs. Without this change
486 some truncated ASN1 structures will not produce an error.
489 *) Disable Heimdal support, since it hasn't been fully implemented.
490 Still give the possibility to force the use of Heimdal, but with
491 warnings and a request that patches get sent to openssl-dev.
494 *) Add the VC-CE target, introduce the WINCE sysname, and add
495 INSTALL.WCE and appropriate conditionals to make it build.
496 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
498 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
499 cygssl-x.y.z.dll, where x, y and z are the major, minor and
500 edit numbers of the version.
501 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
503 *) Introduce safe string copy and catenation functions
504 (BUF_strlcpy() and BUF_strlcat()).
505 [Ben Laurie (CHATS) and Richard Levitte]
507 *) Avoid using fixed-size buffers for one-line DNs.
510 *) Add BUF_MEM_grow_clean() to avoid information leakage when
511 resizing buffers containing secrets, and use where appropriate.
514 *) Avoid using fixed size buffers for configuration file location.
517 *) Avoid filename truncation for various CA files.
520 *) Use sizeof in preference to magic numbers.
523 *) Avoid filename truncation in cert requests.
526 *) Add assertions to check for (supposedly impossible) buffer
530 *) Don't cache truncated DNS entries in the local cache (this could
531 potentially lead to a spoofing attack).
534 *) Fix various buffers to be large enough for hex/decimal
535 representations in a platform independent manner.
538 *) Add CRYPTO_realloc_clean() to avoid information leakage when
539 resizing buffers containing secrets, and use where appropriate.
542 *) Add BIO_indent() to avoid much slightly worrying code to do
546 *) Convert sprintf()/BIO_puts() to BIO_printf().
549 *) buffer_gets() could terminate with the buffer only half
553 *) Add assertions to prevent user-supplied crypto functions from
554 overflowing internal buffers by having large block sizes, etc.
557 *) New OPENSSL_assert() macro (similar to assert(), but enabled
561 *) Eliminate unused copy of key in RC4.
564 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
567 *) Fix off-by-one error in EGD path.
570 *) If RANDFILE path is too long, ignore instead of truncating.
573 *) Eliminate unused and incorrectly sized X.509 structure
577 *) Eliminate unused and dangerous function knumber().
580 *) Eliminate unused and dangerous structure, KSSL_ERR.
583 *) Protect against overlong session ID context length in an encoded
584 session object. Since these are local, this does not appear to be
588 *) Change from security patch (see 0.9.6e below) that did not affect
589 the 0.9.6 release series:
591 Remote buffer overflow in SSL3 protocol - an attacker could
592 supply an oversized master key in Kerberos-enabled versions.
596 *) Change the SSL kerb5 codes to match RFC 2712.
599 *) Make -nameopt work fully for req and add -reqopt switch.
600 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
602 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
603 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
605 *) Make sure tests can be performed even if the corresponding algorithms
606 have been removed entirely. This was also the last step to make
607 OpenSSL compilable with DJGPP under all reasonable conditions.
608 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
610 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
611 to allow version independent disabling of normally unselected ciphers,
612 which may be activated as a side-effect of selecting a single cipher.
614 (E.g., cipher list string "RSA" enables ciphersuites that are left
615 out of "ALL" because they do not provide symmetric encryption.
616 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
617 [Lutz Jaenicke, Bodo Moeller]
619 *) Add appropriate support for separate platform-dependent build
620 directories. The recommended way to make a platform-dependent
621 build directory is the following (tested on Linux), maybe with
624 # Place yourself outside of the OpenSSL source tree. In
625 # this example, the environment variable OPENSSL_SOURCE
626 # is assumed to contain the absolute OpenSSL source directory.
627 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
628 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
629 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
630 mkdir -p `dirname $F`
631 ln -s $OPENSSL_SOURCE/$F $F
634 To be absolutely sure not to disturb the source tree, a "make clean"
635 is a good thing. If it isn't successfull, don't worry about it,
636 it probably means the source directory is very clean.
639 *) Make sure any ENGINE control commands make local copies of string
640 pointers passed to them whenever necessary. Otherwise it is possible
641 the caller may have overwritten (or deallocated) the original string
642 data when a later ENGINE operation tries to use the stored values.
643 [Götz Babin-Ebell <babinebell@trustcenter.de>]
645 *) Improve diagnostics in file reading and command-line digests.
646 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
648 *) Add AES modes CFB and OFB to the object database. Correct an
649 error in AES-CFB decryption.
652 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
653 allows existing EVP_CIPHER_CTX structures to be reused after
654 calling EVP_*Final(). This behaviour is used by encryption
655 BIOs and some applications. This has the side effect that
656 applications must explicitly clean up cipher contexts with
657 EVP_CIPHER_CTX_cleanup() or they will leak memory.
660 *) Check the values of dna and dnb in bn_mul_recursive before calling
661 bn_mul_comba (a non zero value means the a or b arrays do not contain
662 n2 elements) and fallback to bn_mul_normal if either is not zero.
665 *) Fix escaping of non-ASCII characters when using the -subj option
666 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
669 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
670 form for "surname", serialNumber has no short form.
671 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
672 therefore remove "mail" short name for "internet 7".
673 The OID for unique identifiers in X509 certificates is
674 x500UniqueIdentifier, not uniqueIdentifier.
675 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
678 *) Add an "init" command to the ENGINE config module and auto initialize
679 ENGINEs. Without any "init" command the ENGINE will be initialized
680 after all ctrl commands have been executed on it. If init=1 the
681 ENGINE is initailized at that point (ctrls before that point are run
682 on the uninitialized ENGINE and after on the initialized one). If
683 init=0 then the ENGINE will not be iniatialized at all.
686 *) Fix the 'app_verify_callback' interface so that the user-defined
687 argument is actually passed to the callback: In the
688 SSL_CTX_set_cert_verify_callback() prototype, the callback
689 declaration has been changed from
692 int (*cb)(X509_STORE_CTX *,void *);
693 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
694 i=s->ctx->app_verify_callback(&ctx)
695 has been changed into
696 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
698 To update applications using SSL_CTX_set_cert_verify_callback(),
699 a dummy argument can be added to their callback functions.
700 [D. K. Smetters <smetters@parc.xerox.com>]
702 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
703 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
705 *) Add and OPENSSL_LOAD_CONF define which will cause
706 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
707 This allows older applications to transparently support certain
708 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
709 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
710 load the config file and OPENSSL_add_all_algorithms_conf() which will
711 always load it have also been added.
714 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
715 Adjust NIDs and EVP layer.
716 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
718 *) Config modules support in openssl utility.
720 Most commands now load modules from the config file,
721 though in a few (such as version) this isn't done
722 because it couldn't be used for anything.
724 In the case of ca and req the config file used is
725 the same as the utility itself: that is the -config
726 command line option can be used to specify an
730 *) Move default behaviour from OPENSSL_config(). If appname is NULL
731 use "openssl_conf" if filename is NULL use default openssl config file.
734 *) Add an argument to OPENSSL_config() to allow the use of an alternative
735 config section name. Add a new flag to tolerate a missing config file
736 and move code to CONF_modules_load_file().
739 *) Support for crypto accelerator cards from Accelerated Encryption
740 Processing, www.aep.ie. (Use engine 'aep')
741 The support was copied from 0.9.6c [engine] and adapted/corrected
742 to work with the new engine framework.
743 [AEP Inc. and Richard Levitte]
745 *) Support for SureWare crypto accelerator cards from Baltimore
746 Technologies. (Use engine 'sureware')
747 The support was copied from 0.9.6c [engine] and adapted
748 to work with the new engine framework.
751 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
752 make the newer ENGINE framework commands for the CHIL engine work.
753 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
755 *) Make it possible to produce shared libraries on ReliantUNIX.
756 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
758 *) Add the configuration target debug-linux-ppro.
759 Make 'openssl rsa' use the general key loading routines
760 implemented in apps.c, and make those routines able to
761 handle the key format FORMAT_NETSCAPE and the variant
763 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
765 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
766 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
768 *) Add -keyform to rsautl, and document -engine.
769 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
771 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
772 BIO_R_NO_SUCH_FILE error code rather than the generic
773 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
778 ERR_peek_last_error_line
779 ERR_peek_last_error_line_data.
783 ERR_peek_error_line_data,
784 but report on the latest error recorded rather than the first one
785 still in the error queue.
786 [Ben Laurie, Bodo Moeller]
788 *) default_algorithms option in ENGINE config module. This allows things
790 default_algorithms = ALL
791 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
794 *) Prelminary ENGINE config module.
797 *) New experimental application configuration code.
800 *) Change the AES code to follow the same name structure as all other
801 symmetric ciphers, and behave the same way. Move everything to
802 the directory crypto/aes, thereby obsoleting crypto/rijndael.
803 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
805 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
806 [Ben Laurie and Theo de Raadt]
808 *) Add option to output public keys in req command.
809 [Massimiliano Pala madwolf@openca.org]
811 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
812 (up to about 10% better than before for P-192 and P-224).
815 *) New functions/macros
817 SSL_CTX_set_msg_callback(ctx, cb)
818 SSL_CTX_set_msg_callback_arg(ctx, arg)
819 SSL_set_msg_callback(ssl, cb)
820 SSL_set_msg_callback_arg(ssl, arg)
822 to request calling a callback function
824 void cb(int write_p, int version, int content_type,
825 const void *buf, size_t len, SSL *ssl, void *arg)
827 whenever a protocol message has been completely received
828 (write_p == 0) or sent (write_p == 1). Here 'version' is the
829 protocol version according to which the SSL library interprets
830 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
831 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
832 the content type as defined in the SSL 3.0/TLS 1.0 protocol
833 specification (change_cipher_spec(20), alert(21), handshake(22)).
834 'buf' and 'len' point to the actual message, 'ssl' to the
835 SSL object, and 'arg' is the application-defined value set by
836 SSL[_CTX]_set_msg_callback_arg().
838 'openssl s_client' and 'openssl s_server' have new '-msg' options
839 to enable a callback that displays all protocol messages.
842 *) Change the shared library support so shared libraries are built as
843 soon as the corresponding static library is finished, and thereby get
844 openssl and the test programs linked against the shared library.
845 This still only happens when the keyword "shard" has been given to
846 the configuration scripts.
848 NOTE: shared library support is still an experimental thing, and
849 backward binary compatibility is still not guaranteed.
850 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
852 *) Add support for Subject Information Access extension.
853 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
855 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
856 additional bytes when new memory had to be allocated, not just
857 when reusing an existing buffer.
860 *) New command line and configuration option 'utf8' for the req command.
861 This allows field values to be specified as UTF8 strings.
864 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
865 runs for the former and machine-readable output for the latter.
868 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
869 of the e-mail address in the DN (i.e., it will go into a certificate
870 extension only). The new configuration file option 'email_in_dn = no'
872 [Massimiliano Pala madwolf@openca.org]
874 *) Change all functions with names starting with des_ to be starting
875 with DES_ instead. Add wrappers that are compatible with libdes,
876 but are named _ossl_old_des_*. Finally, add macros that map the
877 des_* symbols to the corresponding _ossl_old_des_* if libdes
878 compatibility is desired. If OpenSSL 0.9.6c compatibility is
879 desired, the des_* symbols will be mapped to DES_*, with one
882 Since we provide two compatibility mappings, the user needs to
883 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
884 compatibility is desired. The default (i.e., when that macro
885 isn't defined) is OpenSSL 0.9.6c compatibility.
887 There are also macros that enable and disable the support of old
888 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
889 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
890 are defined, the default will apply: to support the old des routines.
892 In either case, one must include openssl/des.h to get the correct
893 definitions. Do not try to just include openssl/des_old.h, that
896 NOTE: This is a major break of an old API into a new one. Software
897 authors are encouraged to switch to the DES_ style functions. Some
898 time in the future, des_old.h and the libdes compatibility functions
899 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
900 default), and then completely removed.
903 *) Test for certificates which contain unsupported critical extensions.
904 If such a certificate is found during a verify operation it is
905 rejected by default: this behaviour can be overridden by either
906 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
907 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
908 X509_supported_extension() has also been added which returns 1 if a
909 particular extension is supported.
912 *) Modify the behaviour of EVP cipher functions in similar way to digests
913 to retain compatibility with existing code.
916 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
917 compatibility with existing code. In particular the 'ctx' parameter does
918 not have to be to be initialized before the call to EVP_DigestInit() and
919 it is tidied up after a call to EVP_DigestFinal(). New function
920 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
921 EVP_MD_CTX_copy() changed to not require the destination to be
922 initialized valid and new function EVP_MD_CTX_copy_ex() added which
923 requires the destination to be valid.
925 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
926 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
929 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
930 so that complete 'Handshake' protocol structures are kept in memory
931 instead of overwriting 'msg_type' and 'length' with 'body' data.
934 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
935 [Massimo Santin via Richard Levitte]
937 *) Major restructuring to the underlying ENGINE code. This includes
938 reduction of linker bloat, separation of pure "ENGINE" manipulation
939 (initialisation, etc) from functionality dealing with implementations
940 of specific crypto iterfaces. This change also introduces integrated
941 support for symmetric ciphers and digest implementations - so ENGINEs
942 can now accelerate these by providing EVP_CIPHER and EVP_MD
943 implementations of their own. This is detailed in crypto/engine/README
944 as it couldn't be adequately described here. However, there are a few
945 API changes worth noting - some RSA, DSA, DH, and RAND functions that
946 were changed in the original introduction of ENGINE code have now
947 reverted back - the hooking from this code to ENGINE is now a good
948 deal more passive and at run-time, operations deal directly with
949 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
950 dereferencing through an ENGINE pointer any more. Also, the ENGINE
951 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
952 they were not being used by the framework as there is no concept of a
953 BIGNUM_METHOD and they could not be generalised to the new
954 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
955 ENGINE_cpy() has been removed as it cannot be consistently defined in
959 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
962 *) Change mkdef.pl to sort symbols that get the same entry number,
963 and make sure the automatically generated functions ERR_load_*
964 become part of libeay.num as well.
967 *) New function SSL_renegotiate_pending(). This returns true once
968 renegotiation has been requested (either SSL_renegotiate() call
969 or HelloRequest/ClientHello receveived from the peer) and becomes
970 false once a handshake has been completed.
971 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
972 sends a HelloRequest, but does not ensure that a handshake takes
973 place. SSL_renegotiate_pending() is useful for checking if the
974 client has followed the request.)
977 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
978 By default, clients may request session resumption even during
979 renegotiation (if session ID contexts permit); with this option,
980 session resumption is possible only in the first handshake.
982 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
983 more bits available for options that should not be part of
984 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
987 *) Add some demos for certificate and certificate request creation.
990 *) Make maximum certificate chain size accepted from the peer application
991 settable (SSL*_get/set_max_cert_list()), as proposed by
992 "Douglas E. Engert" <deengert@anl.gov>.
995 *) Add support for shared libraries for Unixware-7
996 (Boyd Lynn Gerber <gerberb@zenez.com>).
999 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
1000 be done prior to destruction. Use this to unload error strings from
1001 ENGINEs that load their own error strings. NB: This adds two new API
1002 functions to "get" and "set" this destroy handler in an ENGINE.
1005 *) Alter all existing ENGINE implementations (except "openssl" and
1006 "openbsd") to dynamically instantiate their own error strings. This
1007 makes them more flexible to be built both as statically-linked ENGINEs
1008 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
1009 Also, add stub code to each that makes building them as self-contained
1010 shared-libraries easier (see README.ENGINE).
1013 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
1014 implementations into applications that are completely implemented in
1015 self-contained shared-libraries. The "dynamic" ENGINE exposes control
1016 commands that can be used to configure what shared-library to load and
1017 to control aspects of the way it is handled. Also, made an update to
1018 the README.ENGINE file that brings its information up-to-date and
1019 provides some information and instructions on the "dynamic" ENGINE
1020 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
1023 *) Make it possible to unload ranges of ERR strings with a new
1024 "ERR_unload_strings" function.
1027 *) Add a copy() function to EVP_MD.
1030 *) Make EVP_MD routines take a context pointer instead of just the
1031 md_data void pointer.
1034 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
1035 that the digest can only process a single chunk of data
1036 (typically because it is provided by a piece of
1037 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
1038 is only going to provide a single chunk of data, and hence the
1039 framework needn't accumulate the data for oneshot drivers.
1042 *) As with "ERR", make it possible to replace the underlying "ex_data"
1043 functions. This change also alters the storage and management of global
1044 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
1045 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
1046 index counters. The API functions that use this state have been changed
1047 to take a "class_index" rather than pointers to the class's local STACK
1048 and counter, and there is now an API function to dynamically create new
1049 classes. This centralisation allows us to (a) plug a lot of the
1050 thread-safety problems that existed, and (b) makes it possible to clean
1051 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
1052 such data would previously have always leaked in application code and
1053 workarounds were in place to make the memory debugging turn a blind eye
1054 to it. Application code that doesn't use this new function will still
1055 leak as before, but their memory debugging output will announce it now
1056 rather than letting it slide.
1058 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
1059 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
1060 has a return value to indicate success or failure.
1063 *) Make it possible to replace the underlying "ERR" functions such that the
1064 global state (2 LHASH tables and 2 locks) is only used by the "default"
1065 implementation. This change also adds two functions to "get" and "set"
1066 the implementation prior to it being automatically set the first time
1067 any other ERR function takes place. Ie. an application can call "get",
1068 pass the return value to a module it has just loaded, and that module
1069 can call its own "set" function using that value. This means the
1070 module's "ERR" operations will use (and modify) the error state in the
1071 application and not in its own statically linked copy of OpenSSL code.
1074 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
1075 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
1076 the operation, and provides a more encapsulated way for external code
1077 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
1078 to use these functions rather than manually incrementing the counts.
1080 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
1083 *) Add EVP test program.
1086 *) Add symmetric cipher support to ENGINE. Expect the API to change!
1089 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
1090 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
1091 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
1092 These allow a CRL to be built without having to access X509_CRL fields
1093 directly. Modify 'ca' application to use new functions.
1096 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
1097 bug workarounds. Rollback attack detection is a security feature.
1098 The problem will only arise on OpenSSL servers when TLSv1 is not
1099 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
1100 Software authors not wanting to support TLSv1 will have special reasons
1101 for their choice and can explicitly enable this option.
1102 [Bodo Moeller, Lutz Jaenicke]
1104 *) Rationalise EVP so it can be extended: don't include a union of
1105 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
1106 (similar to those existing for EVP_CIPHER_CTX).
1111 EVP_MD_CTX_init(&md); /* new function call */
1112 EVP_DigestInit(&md, EVP_sha1());
1113 EVP_DigestUpdate(&md, in, len);
1114 EVP_DigestFinal(&md, out, NULL);
1115 EVP_MD_CTX_cleanup(&md); /* new function call */
1119 *) Make DES key schedule conform to the usual scheme, as well as
1120 correcting its structure. This means that calls to DES functions
1121 now have to pass a pointer to a des_key_schedule instead of a
1122 plain des_key_schedule (which was actually always a pointer
1125 des_key_schedule ks;
1127 des_set_key_checked(..., &ks);
1128 des_ncbc_encrypt(..., &ks, ...);
1130 (Note that a later change renames 'des_...' into 'DES_...'.)
1133 *) Initial reduction of linker bloat: the use of some functions, such as
1134 PEM causes large amounts of unused functions to be linked in due to
1135 poor organisation. For example pem_all.c contains every PEM function
1136 which has a knock on effect of linking in large amounts of (unused)
1137 ASN1 code. Grouping together similar functions and splitting unrelated
1138 functions prevents this.
1141 *) Cleanup of EVP macros.
1144 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
1145 correct _ecb suffix.
1148 *) Add initial OCSP responder support to ocsp application. The
1149 revocation information is handled using the text based index
1150 use by the ca application. The responder can either handle
1151 requests generated internally, supplied in files (for example
1152 via a CGI script) or using an internal minimal server.
1155 *) Add configuration choices to get zlib compression for TLS.
1158 *) Changes to Kerberos SSL for RFC 2712 compliance:
1159 1. Implemented real KerberosWrapper, instead of just using
1160 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
1161 2. Implemented optional authenticator field of KerberosWrapper.
1163 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
1164 and authenticator structs; see crypto/krb5/.
1166 Generalized Kerberos calls to support multiple Kerberos libraries.
1167 [Vern Staats <staatsvr@asc.hpc.mil>,
1168 Jeffrey Altman <jaltman@columbia.edu>
1169 via Richard Levitte]
1171 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
1172 already does with RSA. testdsa.h now has 'priv_key/pub_key'
1173 values for each of the key sizes rather than having just
1174 parameters (and 'speed' generating keys each time).
1177 *) Speed up EVP routines.
1180 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
1181 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
1182 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
1183 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
1185 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
1186 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
1187 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
1190 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
1192 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
1195 *) Added the OS2-EMX target.
1196 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
1198 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
1199 to support NCONF routines in extension code. New function CONF_set_nconf()
1200 to allow functions which take an NCONF to also handle the old LHASH
1201 structure: this means that the old CONF compatible routines can be
1202 retained (in particular wrt extensions) without having to duplicate the
1203 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
1206 *) Enhance the general user interface with mechanisms for inner control
1207 and with possibilities to have yes/no kind of prompts.
1210 *) Change all calls to low level digest routines in the library and
1211 applications to use EVP. Add missing calls to HMAC_cleanup() and
1212 don't assume HMAC_CTX can be copied using memcpy().
1213 [Verdon Walker <VWalker@novell.com>, Steve Henson]
1215 *) Add the possibility to control engines through control names but with
1216 arbitrary arguments instead of just a string.
1217 Change the key loaders to take a UI_METHOD instead of a callback
1218 function pointer. NOTE: this breaks binary compatibility with earlier
1219 versions of OpenSSL [engine].
1220 Adapt the nCipher code for these new conditions and add a card insertion
1224 *) Enhance the general user interface with mechanisms to better support
1225 dialog box interfaces, application-defined prompts, the possibility
1226 to use defaults (for example default passwords from somewhere else)
1227 and interrupts/cancellations.
1230 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
1231 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
1234 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
1235 tidy up some unnecessarily weird code in 'sk_new()').
1236 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
1238 *) Change the key loading routines for ENGINEs to use the same kind
1239 callback (pem_password_cb) as all other routines that need this
1243 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
1244 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
1245 than this minimum value is recommended.
1248 *) New random seeder for OpenVMS, using the system process statistics
1249 that are easily reachable.
1252 *) Windows apparently can't transparently handle global
1253 variables defined in DLLs. Initialisations such as:
1255 const ASN1_ITEM *it = &ASN1_INTEGER_it;
1257 wont compile. This is used by the any applications that need to
1258 declare their own ASN1 modules. This was fixed by adding the option
1259 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
1260 needed for static libraries under Win32.
1263 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
1264 setting of purpose and trust fields. New X509_STORE trust and
1265 purpose functions and tidy up setting in other SSL functions.
1268 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
1269 structure. These are inherited by X509_STORE_CTX when it is
1270 initialised. This allows various defaults to be set in the
1271 X509_STORE structure (such as flags for CRL checking and custom
1272 purpose or trust settings) for functions which only use X509_STORE_CTX
1273 internally such as S/MIME.
1275 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
1276 trust settings if they are not set in X509_STORE. This allows X509_STORE
1277 purposes and trust (in S/MIME for example) to override any set by default.
1279 Add command line options for CRL checking to smime, s_client and s_server
1283 *) Initial CRL based revocation checking. If the CRL checking flag(s)
1284 are set then the CRL is looked up in the X509_STORE structure and
1285 its validity and signature checked, then if the certificate is found
1286 in the CRL the verify fails with a revoked error.
1288 Various new CRL related callbacks added to X509_STORE_CTX structure.
1290 Command line options added to 'verify' application to support this.
1292 This needs some additional work, such as being able to handle multiple
1293 CRLs with different times, extension based lookup (rather than just
1294 by subject name) and ultimately more complete V2 CRL extension
1298 *) Add a general user interface API (crypto/ui/). This is designed
1299 to replace things like des_read_password and friends (backward
1300 compatibility functions using this new API are provided).
1301 The purpose is to remove prompting functions from the DES code
1302 section as well as provide for prompting through dialog boxes in
1303 a window system and the like.
1306 *) Add "ex_data" support to ENGINE so implementations can add state at a
1307 per-structure level rather than having to store it globally.
1310 *) Make it possible for ENGINE structures to be copied when retrieved by
1311 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
1312 This causes the "original" ENGINE structure to act like a template,
1313 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
1314 operational state can be localised to each ENGINE structure, despite the
1315 fact they all share the same "methods". New ENGINE structures returned in
1316 this case have no functional references and the return value is the single
1317 structural reference. This matches the single structural reference returned
1318 by ENGINE_by_id() normally, when it is incremented on the pre-existing
1322 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
1323 needs to match any other type at all we need to manually clear the
1327 *) Changes to the "openssl engine" utility to include;
1328 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
1329 about an ENGINE's available control commands.
1330 - executing control commands from command line arguments using the
1331 '-pre' and '-post' switches. '-post' is only used if '-t' is
1332 specified and the ENGINE is successfully initialised. The syntax for
1333 the individual commands are colon-separated, for example;
1334 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
1337 *) New dynamic control command support for ENGINEs. ENGINEs can now
1338 declare their own commands (numbers), names (strings), descriptions,
1339 and input types for run-time discovery by calling applications. A
1340 subset of these commands are implicitly classed as "executable"
1341 depending on their input type, and only these can be invoked through
1342 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
1343 can be based on user input, config files, etc). The distinction is
1344 that "executable" commands cannot return anything other than a boolean
1345 result and can only support numeric or string input, whereas some
1346 discoverable commands may only be for direct use through
1347 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
1348 pointers, or other custom uses. The "executable" commands are to
1349 support parameterisations of ENGINE behaviour that can be
1350 unambiguously defined by ENGINEs and used consistently across any
1351 OpenSSL-based application. Commands have been added to all the
1352 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
1353 control over shared-library paths without source code alterations.
1356 *) Changed all ENGINE implementations to dynamically allocate their
1357 ENGINEs rather than declaring them statically. Apart from this being
1358 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
1359 this also allows the implementations to compile without using the
1360 internal engine_int.h header.
1363 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
1364 'const' value. Any code that should be able to modify a RAND_METHOD
1365 should already have non-const pointers to it (ie. they should only
1366 modify their own ones).
1369 *) Made a variety of little tweaks to the ENGINE code.
1370 - "atalla" and "ubsec" string definitions were moved from header files
1371 to C code. "nuron" string definitions were placed in variables
1372 rather than hard-coded - allowing parameterisation of these values
1373 later on via ctrl() commands.
1374 - Removed unused "#if 0"'d code.
1375 - Fixed engine list iteration code so it uses ENGINE_free() to release
1376 structural references.
1377 - Constified the RAND_METHOD element of ENGINE structures.
1378 - Constified various get/set functions as appropriate and added
1379 missing functions (including a catch-all ENGINE_cpy that duplicates
1380 all ENGINE values onto a new ENGINE except reference counts/state).
1381 - Removed NULL parameter checks in get/set functions. Setting a method
1382 or function to NULL is a way of cancelling out a previously set
1383 value. Passing a NULL ENGINE parameter is just plain stupid anyway
1384 and doesn't justify the extra error symbols and code.
1385 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
1386 flags from engine_int.h to engine.h.
1387 - Changed prototypes for ENGINE handler functions (init(), finish(),
1388 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
1391 *) Implement binary inversion algorithm for BN_mod_inverse in addition
1392 to the algorithm using long division. The binary algorithm can be
1393 used only if the modulus is odd. On 32-bit systems, it is faster
1394 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
1395 roughly 5-15% for 256-bit moduli), so we use it only for moduli
1396 up to 450 bits. In 64-bit environments, the binary algorithm
1397 appears to be advantageous for much longer moduli; here we use it
1398 for moduli up to 2048 bits.
1401 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
1402 could not support the combine flag in choice fields.
1405 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
1406 extensions from a certificate request to the certificate.
1409 *) Allow multiple 'certopt' and 'nameopt' options to be separated
1410 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
1411 file: this allows the display of the certificate about to be
1412 signed to be customised, to allow certain fields to be included
1413 or excluded and extension details. The old system didn't display
1414 multicharacter strings properly, omitted fields not in the policy
1415 and couldn't display additional details such as extensions.
1418 *) Function EC_POINTs_mul for multiple scalar multiplication
1419 of an arbitrary number of elliptic curve points
1420 \sum scalars[i]*points[i],
1421 optionally including the generator defined for the EC_GROUP:
1422 scalar*generator + \sum scalars[i]*points[i].
1424 EC_POINT_mul is a simple wrapper function for the typical case
1425 that the point list has just one item (besides the optional
1429 *) First EC_METHODs for curves over GF(p):
1431 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
1432 operations and provides various method functions that can also
1433 operate with faster implementations of modular arithmetic.
1435 EC_GFp_mont_method() reuses most functions that are part of
1436 EC_GFp_simple_method, but uses Montgomery arithmetic.
1438 [Bodo Moeller; point addition and point doubling
1439 implementation directly derived from source code provided by
1440 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
1442 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
1443 crypto/ec/ec_lib.c):
1445 Curves are EC_GROUP objects (with an optional group generator)
1446 based on EC_METHODs that are built into the library.
1448 Points are EC_POINT objects based on EC_GROUP objects.
1450 Most of the framework would be able to handle curves over arbitrary
1451 finite fields, but as there are no obvious types for fields other
1452 than GF(p), some functions are limited to that for now.
1455 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
1456 that the file contains a complete HTTP response.
1459 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
1460 change the def and num file printf format specifier from "%-40sXXX"
1461 to "%-39s XXX". The latter will always guarantee a space after the
1462 field while the former will cause them to run together if the field
1463 is 40 of more characters long.
1466 *) Constify the cipher and digest 'method' functions and structures
1467 and modify related functions to take constant EVP_MD and EVP_CIPHER
1471 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
1472 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
1475 *) Modify EVP_Digest*() routines so they now return values. Although the
1476 internal software routines can never fail additional hardware versions
1480 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
1482 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
1483 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
1486 ERR_R_NESTED_ASN1_ERROR
1488 ERR_R_MISSING_ASN1_EOS
1489 were 4 .. 9, conflicting with
1490 ERR_LIB_RSA (= ERR_R_RSA_LIB)
1492 ERR_LIB_PEM (= ERR_R_PEM_LIB).
1493 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
1495 Add new error code 'ERR_R_INTERNAL_ERROR'.
1498 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
1502 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
1503 sets the subject name for a new request or supersedes the
1504 subject name in a given request. Formats that can be parsed are
1505 'CN=Some Name, OU=myOU, C=IT'
1507 'CN=Some Name/OU=myOU/C=IT'.
1509 Add options '-batch' and '-verbose' to 'openssl req'.
1510 [Massimiliano Pala <madwolf@hackmasters.net>]
1512 *) Introduce the possibility to access global variables through
1513 functions on platform were that's the best way to handle exporting
1514 global variables in shared libraries. To enable this functionality,
1515 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
1516 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
1517 is normally done by Configure or something similar).
1519 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
1520 in the source file (foo.c) like this:
1522 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
1523 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
1525 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
1526 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
1528 OPENSSL_DECLARE_GLOBAL(int,foo);
1529 #define foo OPENSSL_GLOBAL_REF(foo)
1530 OPENSSL_DECLARE_GLOBAL(double,bar);
1531 #define bar OPENSSL_GLOBAL_REF(bar)
1533 The #defines are very important, and therefore so is including the
1534 header file everywhere where the defined globals are used.
1536 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
1537 of ASN.1 items, but that structure is a bit different.
1539 The largest change is in util/mkdef.pl which has been enhanced with
1540 better and easier to understand logic to choose which symbols should
1541 go into the Windows .def files as well as a number of fixes and code
1542 cleanup (among others, algorithm keywords are now sorted
1543 lexicographically to avoid constant rewrites).
1546 *) In BN_div() keep a copy of the sign of 'num' before writing the
1547 result to 'rm' because if rm==num the value will be overwritten
1548 and produce the wrong result if 'num' is negative: this caused
1549 problems with BN_mod() and BN_nnmod().
1552 *) Function OCSP_request_verify(). This checks the signature on an
1553 OCSP request and verifies the signer certificate. The signer
1554 certificate is just checked for a generic purpose and OCSP request
1558 *) Add OCSP_check_validity() function to check the validity of OCSP
1559 responses. OCSP responses are prepared in real time and may only
1560 be a few seconds old. Simply checking that the current time lies
1561 between thisUpdate and nextUpdate max reject otherwise valid responses
1562 caused by either OCSP responder or client clock inaccuracy. Instead
1563 we allow thisUpdate and nextUpdate to fall within a certain period of
1564 the current time. The age of the response can also optionally be
1565 checked. Two new options -validity_period and -status_age added to
1569 *) If signature or public key algorithm is unrecognized print out its
1570 OID rather that just UNKNOWN.
1573 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
1574 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
1575 ID to be generated from the issuer certificate alone which can then be
1576 passed to OCSP_id_issuer_cmp().
1579 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
1580 ASN1 modules to export functions returning ASN1_ITEM pointers
1581 instead of the ASN1_ITEM structures themselves. This adds several
1582 new macros which allow the underlying ASN1 function/structure to
1583 be accessed transparently. As a result code should not use ASN1_ITEM
1584 references directly (such as &X509_it) but instead use the relevant
1585 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
1586 use of the new ASN1 code on platforms where exporting structures
1587 is problematical (for example in shared libraries) but exporting
1588 functions returning pointers to structures is not.
1591 *) Add support for overriding the generation of SSL/TLS session IDs.
1592 These callbacks can be registered either in an SSL_CTX or per SSL.
1593 The purpose of this is to allow applications to control, if they wish,
1594 the arbitrary values chosen for use as session IDs, particularly as it
1595 can be useful for session caching in multiple-server environments. A
1596 command-line switch for testing this (and any client code that wishes
1597 to use such a feature) has been added to "s_server".
1598 [Geoff Thorpe, Lutz Jaenicke]
1600 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
1601 of the form '#if defined(...) || defined(...) || ...' and
1602 '#if !defined(...) && !defined(...) && ...'. This also avoids
1603 the growing number of special cases it was previously handling.
1606 *) Make all configuration macros available for application by making
1607 sure they are available in opensslconf.h, by giving them names starting
1608 with "OPENSSL_" to avoid conflicts with other packages and by making
1609 sure e_os2.h will cover all platform-specific cases together with
1611 Additionally, it is now possible to define configuration/platform-
1612 specific names (called "system identities"). In the C code, these
1613 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
1614 macro with the name beginning with "OPENSSL_SYS_", which is determined
1615 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
1619 *) New option -set_serial to 'req' and 'x509' this allows the serial
1620 number to use to be specified on the command line. Previously self
1621 signed certificates were hard coded with serial number 0 and the
1622 CA options of 'x509' had to use a serial number in a file which was
1626 *) New options to 'ca' utility to support V2 CRL entry extensions.
1627 Currently CRL reason, invalidity date and hold instruction are
1628 supported. Add new CRL extensions to V3 code and some new objects.
1631 *) New function EVP_CIPHER_CTX_set_padding() this is used to
1632 disable standard block padding (aka PKCS#5 padding) in the EVP
1633 API, which was previously mandatory. This means that the data is
1634 not padded in any way and so the total length much be a multiple
1635 of the block size, otherwise an error occurs.
1638 *) Initial (incomplete) OCSP SSL support.
1641 *) New function OCSP_parse_url(). This splits up a URL into its host,
1642 port and path components: primarily to parse OCSP URLs. New -url
1643 option to ocsp utility.
1646 *) New nonce behavior. The return value of OCSP_check_nonce() now
1647 reflects the various checks performed. Applications can decide
1648 whether to tolerate certain situations such as an absent nonce
1649 in a response when one was present in a request: the ocsp application
1650 just prints out a warning. New function OCSP_add1_basic_nonce()
1651 this is to allow responders to include a nonce in a response even if
1652 the request is nonce-less.
1655 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
1656 skipped when using openssl x509 multiple times on a single input file,
1657 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
1660 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
1661 set string type: to handle setting ASN1_TIME structures. Fix ca
1662 utility to correctly initialize revocation date of CRLs.
1665 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
1666 the clients preferred ciphersuites and rather use its own preferences.
1667 Should help to work around M$ SGC (Server Gated Cryptography) bug in
1668 Internet Explorer by ensuring unchanged hash method during stepup.
1669 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
1672 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
1673 to aes and add a new 'exist' option to print out symbols that don't
1677 *) Additional options to ocsp utility to allow flags to be set and
1678 additional certificates supplied.
1681 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
1682 OCSP client a number of certificate to only verify the response
1686 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
1687 handle the new API. Currently only ECB, CBC modes supported. Add new
1690 Add TLS AES ciphersuites as described in RFC3268, "Advanced
1691 Encryption Standard (AES) Ciphersuites for Transport Layer
1692 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
1693 not enabled by default and were not part of the "ALL" ciphersuite
1694 alias because they were not yet official; they could be
1695 explicitly requested by specifying the "AESdraft" ciphersuite
1696 group alias. In the final release of OpenSSL 0.9.7, the group
1697 alias is called "AES" and is part of "ALL".)
1698 [Ben Laurie, Steve Henson, Bodo Moeller]
1700 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
1701 request to response.
1704 *) Functions for OCSP responders. OCSP_request_onereq_count(),
1705 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
1706 extract information from a certificate request. OCSP_response_create()
1707 creates a response and optionally adds a basic response structure.
1708 OCSP_basic_add1_status() adds a complete single response to a basic
1709 response and returns the OCSP_SINGLERESP structure just added (to allow
1710 extensions to be included for example). OCSP_basic_add1_cert() adds a
1711 certificate to a basic response and OCSP_basic_sign() signs a basic
1712 response with various flags. New helper functions ASN1_TIME_check()
1713 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
1714 (converts ASN1_TIME to GeneralizedTime).
1717 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
1718 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
1719 structure from a certificate. X509_pubkey_digest() digests the public_key
1720 contents: this is used in various key identifiers.
1723 *) Make sk_sort() tolerate a NULL argument.
1724 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
1726 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
1727 passed by the function are trusted implicitly. If any of them signed the
1728 response then it is assumed to be valid and is not verified.
1731 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
1732 to data. This was previously part of the PKCS7 ASN1 code. This
1733 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
1734 [Steve Henson, reported by Kenneth R. Robinette
1735 <support@securenetterm.com>]
1737 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
1738 routines: without these tracing memory leaks is very painful.
1739 Fix leaks in PKCS12 and PKCS7 routines.
1742 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
1743 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
1744 effectively meant GeneralizedTime would never be used. Now it
1745 is initialised to -1 but X509_time_adj() now has to check the value
1746 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
1747 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
1748 [Steve Henson, reported by Kenneth R. Robinette
1749 <support@securenetterm.com>]
1751 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
1752 result in a zero length in the ASN1_INTEGER structure which was
1753 not consistent with the structure when d2i_ASN1_INTEGER() was used
1754 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
1755 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
1756 where it did not print out a minus for negative ASN1_INTEGER.
1759 *) Add summary printout to ocsp utility. The various functions which
1760 convert status values to strings have been renamed to:
1761 OCSP_response_status_str(), OCSP_cert_status_str() and
1762 OCSP_crl_reason_str() and are no longer static. New options
1763 to verify nonce values and to disable verification. OCSP response
1764 printout format cleaned up.
1767 *) Add additional OCSP certificate checks. These are those specified
1768 in RFC2560. This consists of two separate checks: the CA of the
1769 certificate being checked must either be the OCSP signer certificate
1770 or the issuer of the OCSP signer certificate. In the latter case the
1771 OCSP signer certificate must contain the OCSP signing extended key
1772 usage. This check is performed by attempting to match the OCSP
1773 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
1774 in the OCSP_CERTID structures of the response.
1777 *) Initial OCSP certificate verification added to OCSP_basic_verify()
1778 and related routines. This uses the standard OpenSSL certificate
1779 verify routines to perform initial checks (just CA validity) and
1780 to obtain the certificate chain. Then additional checks will be
1781 performed on the chain. Currently the root CA is checked to see
1782 if it is explicitly trusted for OCSP signing. This is used to set
1783 a root CA as a global signing root: that is any certificate that
1784 chains to that CA is an acceptable OCSP signing certificate.
1787 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
1788 extensions from a separate configuration file.
1789 As when reading extensions from the main configuration file,
1790 the '-extensions ...' option may be used for specifying the
1792 [Massimiliano Pala <madwolf@comune.modena.it>]
1794 *) New OCSP utility. Allows OCSP requests to be generated or
1795 read. The request can be sent to a responder and the output
1796 parsed, outputed or printed in text form. Not complete yet:
1797 still needs to check the OCSP response validity.
1800 *) New subcommands for 'openssl ca':
1801 'openssl ca -status <serial>' prints the status of the cert with
1802 the given serial number (according to the index file).
1803 'openssl ca -updatedb' updates the expiry status of certificates
1805 [Massimiliano Pala <madwolf@comune.modena.it>]
1807 *) New '-newreq-nodes' command option to CA.pl. This is like
1808 '-newreq', but calls 'openssl req' with the '-nodes' option
1809 so that the resulting key is not encrypted.
1810 [Damien Miller <djm@mindrot.org>]
1812 *) New configuration for the GNU Hurd.
1813 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
1815 *) Initial code to implement OCSP basic response verify. This
1816 is currently incomplete. Currently just finds the signer's
1817 certificate and verifies the signature on the response.
1820 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
1821 value of OPENSSLDIR. This is available via the new '-d' option
1822 to 'openssl version', and is also included in 'openssl version -a'.
1825 *) Allowing defining memory allocation callbacks that will be given
1826 file name and line number information in additional arguments
1827 (a const char* and an int). The basic functionality remains, as
1828 well as the original possibility to just replace malloc(),
1829 realloc() and free() by functions that do not know about these
1830 additional arguments. To register and find out the current
1831 settings for extended allocation functions, the following
1832 functions are provided:
1834 CRYPTO_set_mem_ex_functions
1835 CRYPTO_set_locked_mem_ex_functions
1836 CRYPTO_get_mem_ex_functions
1837 CRYPTO_get_locked_mem_ex_functions
1839 These work the same way as CRYPTO_set_mem_functions and friends.
1840 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
1841 extended allocation function is enabled.
1842 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
1843 a conventional allocation function is enabled.
1844 [Richard Levitte, Bodo Moeller]
1846 *) Finish off removing the remaining LHASH function pointer casts.
1847 There should no longer be any prototype-casting required when using
1848 the LHASH abstraction, and any casts that remain are "bugs". See
1849 the callback types and macros at the head of lhash.h for details
1850 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
1853 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
1854 If /dev/[u]random devices are not available or do not return enough
1855 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
1857 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
1858 /etc/entropy will be queried once each in this sequence, quering stops
1859 when enough entropy was collected without querying more sockets.
1862 *) Change the Unix RAND_poll() variant to be able to poll several
1863 random devices, as specified by DEVRANDOM, until a sufficient amount
1864 of data has been collected. We spend at most 10 ms on each file
1865 (select timeout) and read in non-blocking mode. DEVRANDOM now
1866 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
1867 (previously it was just the string "/dev/urandom"), so on typical
1868 platforms the 10 ms delay will never occur.
1869 Also separate out the Unix variant to its own file, rand_unix.c.
1870 For VMS, there's a currently-empty rand_vms.c.
1873 *) Move OCSP client related routines to ocsp_cl.c. These
1874 provide utility functions which an application needing
1875 to issue a request to an OCSP responder and analyse the
1876 response will typically need: as opposed to those which an
1877 OCSP responder itself would need which will be added later.
1879 OCSP_request_sign() signs an OCSP request with an API similar
1880 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
1881 response. OCSP_response_get1_basic() extracts basic response
1882 from response. OCSP_resp_find_status(): finds and extracts status
1883 information from an OCSP_CERTID structure (which will be created
1884 when the request structure is built). These are built from lower
1885 level functions which work on OCSP_SINGLERESP structures but
1886 wont normally be used unless the application wishes to examine
1887 extensions in the OCSP response for example.
1889 Replace nonce routines with a pair of functions.
1890 OCSP_request_add1_nonce() adds a nonce value and optionally
1891 generates a random value. OCSP_check_nonce() checks the
1892 validity of the nonce in an OCSP response.
1895 *) Change function OCSP_request_add() to OCSP_request_add0_id().
1896 This doesn't copy the supplied OCSP_CERTID and avoids the
1897 need to free up the newly created id. Change return type
1898 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
1899 This can then be used to add extensions to the request.
1900 Deleted OCSP_request_new(), since most of its functionality
1901 is now in OCSP_REQUEST_new() (and the case insensitive name
1902 clash) apart from the ability to set the request name which
1903 will be added elsewhere.
1906 *) Update OCSP API. Remove obsolete extensions argument from
1907 various functions. Extensions are now handled using the new
1908 OCSP extension code. New simple OCSP HTTP function which
1909 can be used to send requests and parse the response.
1912 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
1913 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
1914 uses the special reorder version of SET OF to sort the attributes
1915 and reorder them to match the encoded order. This resolves a long
1916 standing problem: a verify on a PKCS7 structure just after signing
1917 it used to fail because the attribute order did not match the
1918 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
1919 it uses the received order. This is necessary to tolerate some broken
1920 software that does not order SET OF. This is handled by encoding
1921 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
1922 to produce the required SET OF.
1925 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
1926 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
1927 files to get correct declarations of the ASN.1 item variables.
1930 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
1931 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
1932 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
1933 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
1934 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
1935 ASN1_ITEM and no wrapper functions.
1938 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
1939 replace the old function pointer based I/O routines. Change most of
1940 the *_d2i_bio() and *_d2i_fp() functions to use these.
1943 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
1944 lines, recognice more "algorithms" that can be deselected, and make
1945 it complain about algorithm deselection that isn't recognised.
1948 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
1949 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
1950 to use new functions. Add NO_ASN1_OLD which can be set to remove
1951 some old style ASN1 functions: this can be used to determine if old
1952 code will still work when these eventually go away.
1955 *) New extension functions for OCSP structures, these follow the
1956 same conventions as certificates and CRLs.
1959 *) New function X509V3_add1_i2d(). This automatically encodes and
1960 adds an extension. Its behaviour can be customised with various
1961 flags to append, replace or delete. Various wrappers added for
1962 certifcates and CRLs.
1965 *) Fix to avoid calling the underlying ASN1 print routine when
1966 an extension cannot be parsed. Correct a typo in the
1967 OCSP_SERVICELOC extension. Tidy up print OCSP format.
1970 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
1971 entries for variables.
1974 *) Add functionality to apps/openssl.c for detecting locking
1975 problems: As the program is single-threaded, all we have
1976 to do is register a locking callback using an array for
1977 storing which locks are currently held by the program.
1980 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
1981 SSL_get_ex_data_X509_STORE_idx(), which is used in
1982 ssl_verify_cert_chain() and thus can be called at any time
1983 during TLS/SSL handshakes so that thread-safety is essential.
1984 Unfortunately, the ex_data design is not at all suited
1985 for multi-threaded use, so it probably should be abolished.
1988 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
1989 [Broadcom, tweaked and integrated by Geoff Thorpe]
1991 *) Move common extension printing code to new function
1992 X509V3_print_extensions(). Reorganise OCSP print routines and
1993 implement some needed OCSP ASN1 functions. Add OCSP extensions.
1996 *) New function X509_signature_print() to remove duplication in some
2000 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
2001 set (this was treated exactly the same as SET OF previously). This
2002 is used to reorder the STACK representing the structure to match the
2003 encoding. This will be used to get round a problem where a PKCS7
2004 structure which was signed could not be verified because the STACK
2005 order did not reflect the encoded order.
2008 *) Reimplement the OCSP ASN1 module using the new code.
2011 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
2012 for its ASN1 operations. The old style function pointers still exist
2013 for now but they will eventually go away.
2016 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
2017 completely replaces the old ASN1 functionality with a table driven
2018 encoder and decoder which interprets an ASN1_ITEM structure describing
2019 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
2020 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
2021 has also been converted to the new form.
2024 *) Change BN_mod_exp_recp so that negative moduli are tolerated
2025 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
2026 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
2027 for negative moduli.
2030 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
2031 of not touching the result's sign bit.
2034 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
2038 *) Changed the LHASH code to use prototypes for callbacks, and created
2039 macros to declare and implement thin (optionally static) functions
2040 that provide type-safety and avoid function pointer casting for the
2041 type-specific callbacks.
2044 *) Added Kerberos Cipher Suites to be used with TLS, as written in
2046 [Veers Staats <staatsvr@asc.hpc.mil>,
2047 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
2049 *) Reformat the FAQ so the different questions and answers can be divided
2050 in sections depending on the subject.
2053 *) Have the zlib compression code load ZLIB.DLL dynamically under
2057 *) New function BN_mod_sqrt for computing square roots modulo a prime
2058 (using the probabilistic Tonelli-Shanks algorithm unless
2059 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
2060 be handled deterministically).
2061 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
2063 *) Make BN_mod_inverse faster by explicitly handling small quotients
2064 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
2065 512 bits], about 30% for larger ones [1024 or 2048 bits].)
2068 *) New function BN_kronecker.
2071 *) Fix BN_gcd so that it works on negative inputs; the result is
2072 positive unless both parameters are zero.
2073 Previously something reasonably close to an infinite loop was
2074 possible because numbers could be growing instead of shrinking
2075 in the implementation of Euclid's algorithm.
2078 *) Fix BN_is_word() and BN_is_one() macros to take into account the
2079 sign of the number in question.
2081 Fix BN_is_word(a,w) to work correctly for w == 0.
2083 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
2084 because its test if the absolute value of 'a' equals 'w'.
2085 Note that BN_abs_is_word does *not* handle w == 0 reliably;
2086 it exists mostly for use in the implementations of BN_is_zero(),
2087 BN_is_one(), and BN_is_word().
2090 *) New function BN_swap.
2093 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
2094 the exponentiation functions are more likely to produce reasonable
2095 results on negative inputs.
2098 *) Change BN_mod_mul so that the result is always non-negative.
2099 Previously, it could be negative if one of the factors was negative;
2100 I don't think anyone really wanted that behaviour.
2103 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
2104 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
2105 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
2106 and add new functions:
2115 BN_mod_lshift1_quick
2119 These functions always generate non-negative results.
2121 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
2122 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
2124 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
2125 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
2126 be reduced modulo m.
2127 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
2130 The following entry accidentily appeared in the CHANGES file
2131 distributed with OpenSSL 0.9.7. The modifications described in
2132 it do *not* apply to OpenSSL 0.9.7.
2134 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
2135 was actually never needed) and in BN_mul(). The removal in BN_mul()
2136 required a small change in bn_mul_part_recursive() and the addition
2137 of the functions bn_cmp_part_words(), bn_sub_part_words() and
2138 bn_add_part_words(), which do the same thing as bn_cmp_words(),
2139 bn_sub_words() and bn_add_words() except they take arrays with
2144 *) In 'openssl passwd', verify passwords read from the terminal
2145 unless the '-salt' option is used (which usually means that
2146 verification would just waste user's time since the resulting
2147 hash is going to be compared with some given password hash)
2148 or the new '-noverify' option is used.
2150 This is an incompatible change, but it does not affect
2151 non-interactive use of 'openssl passwd' (passwords on the command
2152 line, '-stdin' option, '-in ...' option) and thus should not
2156 *) Remove all references to RSAref, since there's no more need for it.
2159 *) Make DSO load along a path given through an environment variable
2160 (SHLIB_PATH) with shl_load().
2163 *) Constify the ENGINE code as a result of BIGNUM constification.
2164 Also constify the RSA code and most things related to it. In a
2165 few places, most notable in the depth of the ASN.1 code, ugly
2166 casts back to non-const were required (to be solved at a later
2170 *) Make it so the openssl application has all engines loaded by default.
2173 *) Constify the BIGNUM routines a little more.
2176 *) Add the following functions:
2178 ENGINE_load_cswift()
2180 ENGINE_load_atalla()
2182 ENGINE_load_builtin_engines()
2184 That way, an application can itself choose if external engines that
2185 are built-in in OpenSSL shall ever be used or not. The benefit is
2186 that applications won't have to be linked with libdl or other dso
2187 libraries unless it's really needed.
2189 Changed 'openssl engine' to load all engines on demand.
2190 Changed the engine header files to avoid the duplication of some
2191 declarations (they differed!).
2194 *) 'openssl engine' can now list capabilities.
2197 *) Better error reporting in 'openssl engine'.
2200 *) Never call load_dh_param(NULL) in s_server.
2203 *) Add engine application. It can currently list engines by name and
2204 identity, and test if they are actually available.
2207 *) Improve RPM specification file by forcing symbolic linking and making
2208 sure the installed documentation is also owned by root.root.
2209 [Damien Miller <djm@mindrot.org>]
2211 *) Give the OpenSSL applications more possibilities to make use of
2212 keys (public as well as private) handled by engines.
2215 *) Add OCSP code that comes from CertCo.
2218 *) Add VMS support for the Rijndael code.
2221 *) Added untested support for Nuron crypto accelerator.
2224 *) Add support for external cryptographic devices. This code was
2225 previously distributed separately as the "engine" branch.
2226 [Geoff Thorpe, Richard Levitte]
2228 *) Rework the filename-translation in the DSO code. It is now possible to
2229 have far greater control over how a "name" is turned into a filename
2230 depending on the operating environment and any oddities about the
2231 different shared library filenames on each system.
2234 *) Support threads on FreeBSD-elf in Configure.
2237 *) Fix for SHA1 assembly problem with MASM: it produces
2238 warnings about corrupt line number information when assembling
2239 with debugging information. This is caused by the overlapping
2241 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
2244 NCONF_get_number() has no error checking at all. As a replacement,
2245 NCONF_get_number_e() is defined (_e for "error checking") and is
2246 promoted strongly. The old NCONF_get_number is kept around for
2247 binary backward compatibility.
2248 Make it possible for methods to load from something other than a BIO,
2249 by providing a function pointer that is given a name instead of a BIO.
2250 For example, this could be used to load configuration data from an
2254 *) Fix for non blocking accept BIOs. Added new I/O special reason
2255 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
2256 with non blocking I/O was not possible because no retry code was
2257 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
2261 *) Added the beginnings of Rijndael support.
2264 *) Fix for bug in DirectoryString mask setting. Add support for
2265 X509_NAME_print_ex() in 'req' and X509_print_ex() function
2266 to allow certificate printing to more controllable, additional
2267 'certopt' option to 'x509' to allow new printing options to be
2271 *) Clean old EAY MD5 hack from e_os.h.
2274 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
2276 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
2277 memory from it's contents. This is done with a counter that will
2278 place alternating values in each byte. This can be used to solve
2279 two issues: 1) the removal of calls to memset() by highly optimizing
2280 compilers, and 2) cleansing with other values than 0, since those can
2281 be read through on certain media, for example a swap space on disk.
2284 *) Bugfix: client side session caching did not work with external caching,
2285 because the session->cipher setting was not restored when reloading
2286 from the external cache. This problem was masked, when
2287 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
2288 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
2291 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
2292 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
2293 [Zeev Lieber <zeev-l@yahoo.com>]
2295 *) Undo an undocumented change introduced in 0.9.6e which caused
2296 repeated calls to OpenSSL_add_all_ciphers() and
2297 OpenSSL_add_all_digests() to be ignored, even after calling
2301 *) Change the default configuration reader to deal with last line not
2302 being properly terminated.
2305 *) Change X509_NAME_cmp() so it applies the special rules on handling
2306 DN values that are of type PrintableString, as well as RDNs of type
2307 emailAddress where the value has the type ia5String.
2308 [stefank@valicert.com via Richard Levitte]
2310 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
2311 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
2312 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
2313 the bitwise-OR of the two for use by the majority of applications
2314 wanting this behaviour, and update the docs. The documented
2315 behaviour and actual behaviour were inconsistent and had been
2316 changing anyway, so this is more a bug-fix than a behavioural
2318 [Geoff Thorpe, diagnosed by Nadav Har'El]
2320 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
2321 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
2324 *) Fix initialization code race conditions in
2325 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
2326 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
2327 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
2328 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
2329 ssl2_get_cipher_by_char(),
2330 ssl3_get_cipher_by_char().
2331 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
2333 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
2334 the cached sessions are flushed, as the remove_cb() might use ex_data
2335 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
2336 (see [openssl.org #212]).
2337 [Geoff Thorpe, Lutz Jaenicke]
2339 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
2340 length, instead of the encoding length to d2i_ASN1_OBJECT.
2343 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
2345 *) [In 0.9.6g-engine release:]
2346 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
2347 [Lynn Gazis <lgazis@rainbow.com>]
2349 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
2351 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
2352 and get fix the header length calculation.
2353 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
2354 Alon Kantor <alonk@checkpoint.com> (and others),
2357 *) Use proper error handling instead of 'assertions' in buffer
2358 overflow checks added in 0.9.6e. This prevents DoS (the
2359 assertions could call abort()).
2360 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
2362 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
2364 *) Add various sanity checks to asn1_get_length() to reject
2365 the ASN1 length bytes if they exceed sizeof(long), will appear
2366 negative or the content length exceeds the length of the
2368 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
2370 *) Fix cipher selection routines: ciphers without encryption had no flags
2371 for the cipher strength set and where therefore not handled correctly
2372 by the selection routines (PR #130).
2375 *) Fix EVP_dsa_sha macro.
2379 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
2380 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
2381 that was added in OpenSSL 0.9.6d.
2383 As the countermeasure turned out to be incompatible with some
2384 broken SSL implementations, the new option is part of SSL_OP_ALL.
2385 SSL_OP_ALL is usually employed when compatibility with weird SSL
2386 implementations is desired (e.g. '-bugs' option to 's_client' and
2387 's_server'), so the new option is automatically set in many
2391 *) Changes in security patch:
2393 Changes marked "(CHATS)" were sponsored by the Defense Advanced
2394 Research Projects Agency (DARPA) and Air Force Research Laboratory,
2395 Air Force Materiel Command, USAF, under agreement number
2398 *) Add various sanity checks to asn1_get_length() to reject
2399 the ASN1 length bytes if they exceed sizeof(long), will appear
2400 negative or the content length exceeds the length of the
2401 supplied buffer. (CAN-2002-0659)
2402 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
2404 *) Assertions for various potential buffer overflows, not known to
2406 [Ben Laurie (CHATS)]
2408 *) Various temporary buffers to hold ASCII versions of integers were
2409 too small for 64 bit platforms. (CAN-2002-0655)
2410 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
2412 *) Remote buffer overflow in SSL3 protocol - an attacker could
2413 supply an oversized session ID to a client. (CAN-2002-0656)
2414 [Ben Laurie (CHATS)]
2416 *) Remote buffer overflow in SSL2 protocol - an attacker could
2417 supply an oversized client master key. (CAN-2002-0656)
2418 [Ben Laurie (CHATS)]
2420 Changes between 0.9.6c and 0.9.6d [9 May 2002]
2422 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
2423 encoded as NULL) with id-dsa-with-sha1.
2424 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
2426 *) Check various X509_...() return values in apps/req.c.
2427 [Nils Larsch <nla@trustcenter.de>]
2429 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
2430 an end-of-file condition would erronously be flagged, when the CRLF
2431 was just at the end of a processed block. The bug was discovered when
2432 processing data through a buffering memory BIO handing the data to a
2433 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
2434 <ptsekov@syntrex.com> and Nedelcho Stanev.
2437 *) Implement a countermeasure against a vulnerability recently found
2438 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
2439 before application data chunks to avoid the use of known IVs
2440 with data potentially chosen by the attacker.
2443 *) Fix length checks in ssl3_get_client_hello().
2446 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
2447 to prevent ssl3_read_internal() from incorrectly assuming that
2448 ssl3_read_bytes() found application data while handshake
2449 processing was enabled when in fact s->s3->in_read_app_data was
2450 merely automatically cleared during the initial handshake.
2451 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
2453 *) Fix object definitions for Private and Enterprise: they were not
2454 recognized in their shortname (=lowercase) representation. Extend
2455 obj_dat.pl to issue an error when using undefined keywords instead
2456 of silently ignoring the problem (Svenning Sorensen
2457 <sss@sss.dnsalias.net>).
2460 *) Fix DH_generate_parameters() so that it works for 'non-standard'
2461 generators, i.e. generators other than 2 and 5. (Previously, the
2462 code did not properly initialise the 'add' and 'rem' values to
2463 BN_generate_prime().)
2465 In the new general case, we do not insist that 'generator' is
2466 actually a primitive root: This requirement is rather pointless;
2467 a generator of the order-q subgroup is just as good, if not
2471 *) Map new X509 verification errors to alerts. Discovered and submitted by
2472 Tom Wu <tom@arcot.com>.
2475 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
2476 returning non-zero before the data has been completely received
2477 when using non-blocking I/O.
2478 [Bodo Moeller; problem pointed out by John Hughes]
2480 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
2481 [Ben Laurie, Lutz Jaenicke]
2483 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
2484 Yoram Zahavi <YoramZ@gilian.com>).
2487 *) Add information about CygWin 1.3 and on, and preserve proper
2488 configuration for the versions before that.
2489 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
2491 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
2492 check whether we deal with a copy of a session and do not delete from
2493 the cache in this case. Problem reported by "Izhar Shoshani Levi"
2494 <izhar@checkpoint.com>.
2497 *) Do not store session data into the internal session cache, if it
2498 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
2499 flag is set). Proposed by Aslam <aslam@funk.com>.
2502 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
2506 *) [In 0.9.6d-engine release:]
2507 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
2508 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2510 *) Add the configuration target linux-s390x.
2511 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
2513 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
2514 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
2515 variable as an indication that a ClientHello message has been
2516 received. As the flag value will be lost between multiple
2517 invocations of ssl3_accept when using non-blocking I/O, the
2518 function may not be aware that a handshake has actually taken
2519 place, thus preventing a new session from being added to the
2522 To avoid this problem, we now set s->new_session to 2 instead of
2523 using a local variable.
2524 [Lutz Jaenicke, Bodo Moeller]
2526 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
2527 if the SSL_R_LENGTH_MISMATCH error is detected.
2528 [Geoff Thorpe, Bodo Moeller]
2530 *) New 'shared_ldflag' column in Configure platform table.
2533 *) Fix EVP_CIPHER_mode macro.
2534 ["Dan S. Camper" <dan@bti.net>]
2536 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
2537 type, we must throw them away by setting rr->length to 0.
2538 [D P Chang <dpc@qualys.com>]
2540 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
2542 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
2543 <Dominikus.Scherkl@biodata.com>. (The previous implementation
2544 worked incorrectly for those cases where range = 10..._2 and
2545 3*range is two bits longer than range.)
2548 *) Only add signing time to PKCS7 structures if it is not already
2552 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
2553 OBJ_ld_ce should be OBJ_id_ce.
2554 Also some ip-pda OIDs in crypto/objects/objects.txt were
2555 incorrect (cf. RFC 3039).
2556 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
2558 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
2559 returns early because it has nothing to do.
2560 [Andy Schneider <andy.schneider@bjss.co.uk>]
2562 *) [In 0.9.6c-engine release:]
2563 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
2564 [Andy Schneider <andy.schneider@bjss.co.uk>]
2566 *) [In 0.9.6c-engine release:]
2567 Add support for Cryptographic Appliance's keyserver technology.
2568 (Use engine 'keyclient')
2569 [Cryptographic Appliances and Geoff Thorpe]
2571 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
2572 is called via tools/c89.sh because arguments have to be
2573 rearranged (all '-L' options must appear before the first object
2575 [Richard Shapiro <rshapiro@abinitio.com>]
2577 *) [In 0.9.6c-engine release:]
2578 Add support for Broadcom crypto accelerator cards, backported
2580 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
2582 *) [In 0.9.6c-engine release:]
2583 Add support for SureWare crypto accelerator cards from
2584 Baltimore Technologies. (Use engine 'sureware')
2585 [Baltimore Technologies and Mark Cox]
2587 *) [In 0.9.6c-engine release:]
2588 Add support for crypto accelerator cards from Accelerated
2589 Encryption Processing, www.aep.ie. (Use engine 'aep')
2590 [AEP Inc. and Mark Cox]
2592 *) Add a configuration entry for gcc on UnixWare.
2593 [Gary Benson <gbenson@redhat.com>]
2595 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
2596 messages are stored in a single piece (fixed-length part and
2597 variable-length part combined) and fix various bugs found on the way.
2600 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
2601 instead. BIO_gethostbyname() does not know what timeouts are
2602 appropriate, so entries would stay in cache even when they have
2604 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
2606 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
2607 faced with a pathologically small ClientHello fragment that does
2608 not contain client_version: Instead of aborting with an error,
2609 simply choose the highest available protocol version (i.e.,
2610 TLS 1.0 unless it is disabled). In practice, ClientHello
2611 messages are never sent like this, but this change gives us
2612 strictly correct behaviour at least for TLS.
2615 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
2616 never resets s->method to s->ctx->method when called from within
2617 one of the SSL handshake functions.
2618 [Bodo Moeller; problem pointed out by Niko Baric]
2620 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
2621 (sent using the client's version number) if client_version is
2622 smaller than the protocol version in use. Also change
2623 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
2624 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
2625 the client will at least see that alert.
2628 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
2632 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
2633 client receives HelloRequest while in a handshake.
2634 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
2636 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
2637 should end in 'break', not 'goto end' which circuments various
2638 cleanups done in state SSL_ST_OK. But session related stuff
2639 must be disabled for SSL_ST_OK in the case that we just sent a
2642 Also avoid some overhead by not calling ssl_init_wbio_buffer()
2643 before just sending a HelloRequest.
2644 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
2646 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
2647 reveal whether illegal block cipher padding was found or a MAC
2648 verification error occured. (Neither SSLerr() codes nor alerts
2649 are directly visible to potential attackers, but the information
2650 may leak via logfiles.)
2652 Similar changes are not required for the SSL 2.0 implementation
2653 because the number of padding bytes is sent in clear for SSL 2.0,
2654 and the extra bytes are just ignored. However ssl/s2_pkt.c
2655 failed to verify that the purported number of padding bytes is in
2659 *) Add OpenUNIX-8 support including shared libraries
2660 (Boyd Lynn Gerber <gerberb@zenez.com>).
2663 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
2664 'wristwatch attack' using huge encoding parameters (cf.
2665 James H. Manger's CRYPTO 2001 paper). Note that the
2666 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
2667 encoding parameters and hence was not vulnerable.
2670 *) BN_sqr() bug fix.
2671 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
2673 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
2674 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
2675 followed by modular reduction.
2676 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
2678 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
2679 equivalent based on BN_pseudo_rand() instead of BN_rand().
2682 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
2683 This function was broken, as the check for a new client hello message
2684 to handle SGC did not allow these large messages.
2685 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
2688 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
2691 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
2692 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
2695 *) Rework the configuration and shared library support for Tru64 Unix.
2696 The configuration part makes use of modern compiler features and
2697 still retains old compiler behavior for those that run older versions
2698 of the OS. The shared library support part includes a variant that
2699 uses the RPATH feature, and is available through the special
2700 configuration target "alpha-cc-rpath", which will never be selected
2702 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
2704 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
2705 with the same message size as in ssl3_get_certificate_request().
2706 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
2707 messages might inadvertently be reject as too long.
2708 [Petr Lampa <lampa@fee.vutbr.cz>]
2710 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
2713 *) Modified SSL library such that the verify_callback that has been set
2714 specificly for an SSL object with SSL_set_verify() is actually being
2715 used. Before the change, a verify_callback set with this function was
2716 ignored and the verify_callback() set in the SSL_CTX at the time of
2717 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
2718 to allow the necessary settings.
2721 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
2722 explicitly to NULL, as at least on Solaris 8 this seems not always to be
2723 done automatically (in contradiction to the requirements of the C
2724 standard). This made problems when used from OpenSSH.
2727 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
2728 dh->length and always used
2730 BN_rand_range(priv_key, dh->p).
2732 BN_rand_range() is not necessary for Diffie-Hellman, and this
2733 specific range makes Diffie-Hellman unnecessarily inefficient if
2734 dh->length (recommended exponent length) is much smaller than the
2735 length of dh->p. We could use BN_rand_range() if the order of
2736 the subgroup was stored in the DH structure, but we only have
2741 BN_rand(priv_key, l, ...)
2743 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
2749 RSA_eay_public_encrypt
2750 RSA_eay_private_decrypt
2751 RSA_eay_private_encrypt (signing)
2752 RSA_eay_public_decrypt (signature verification)
2754 (default implementations for RSA_public_encrypt,
2755 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
2756 always reject numbers >= n.
2759 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
2760 to synchronize access to 'locking_thread'. This is necessary on
2761 systems where access to 'locking_thread' (an 'unsigned long'
2762 variable) is not atomic.
2765 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
2766 *before* setting the 'crypto_lock_rand' flag. The previous code had
2767 a race condition if 0 is a valid thread ID.
2768 [Travis Vitek <vitek@roguewave.com>]
2770 *) Add support for shared libraries under Irix.
2771 [Albert Chin-A-Young <china@thewrittenword.com>]
2773 *) Add configuration option to build on Linux on both big-endian and
2775 [Ralf Baechle <ralf@uni-koblenz.de>]
2777 *) Add the possibility to create shared libraries on HP-UX.
2780 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
2782 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
2783 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
2784 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
2785 PRNG state recovery was possible based on the output of
2786 one PRNG request appropriately sized to gain knowledge on
2787 'md' followed by enough consecutive 1-byte PRNG requests
2788 to traverse all of 'state'.
2790 1. When updating 'md_local' (the current thread's copy of 'md')
2791 during PRNG output generation, hash all of the previous
2792 'md_local' value, not just the half used for PRNG output.
2794 2. Make the number of bytes from 'state' included into the hash
2795 independent from the number of PRNG bytes requested.
2797 The first measure alone would be sufficient to avoid
2798 Markku-Juhani's attack. (Actually it had never occurred
2799 to me that the half of 'md_local' used for chaining was the
2800 half from which PRNG output bytes were taken -- I had always
2801 assumed that the secret half would be used.) The second
2802 measure makes sure that additional data from 'state' is never
2803 mixed into 'md_local' in small portions; this heuristically
2804 further strengthens the PRNG.
2807 *) Fix crypto/bn/asm/mips3.s.
2810 *) When only the key is given to "enc", the IV is undefined. Print out
2811 an error message in this case.
2814 *) Handle special case when X509_NAME is empty in X509 printing routines.
2817 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
2818 positive and less than q.
2821 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
2822 used: it isn't thread safe and the add_lock_callback should handle
2824 [Paul Rose <Paul.Rose@bridge.com>]
2826 *) Verify that incoming data obeys the block size in
2827 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
2831 [Ulf Möller, Bodo Möller]
2833 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
2834 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
2835 when fixing the server behaviour for backwards-compatible 'client
2836 hello' messages. (Note that the attack is impractical against
2837 SSL 3.0 and TLS 1.0 anyway because length and version checking
2838 means that the probability of guessing a valid ciphertext is
2839 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
2842 Before 0.9.5, the countermeasure (hide the error by generating a
2843 random 'decryption result') did not work properly because
2844 ERR_clear_error() was missing, meaning that SSL_get_error() would
2845 detect the supposedly ignored error.
2847 Both problems are now fixed.
2850 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
2851 (previously it was 1024).
2854 *) Fix for compatibility mode trust settings: ignore trust settings
2855 unless some valid trust or reject settings are present.
2858 *) Fix for blowfish EVP: its a variable length cipher.
2861 *) Fix various bugs related to DSA S/MIME verification. Handle missing
2862 parameters in DSA public key structures and return an error in the
2863 DSA routines if parameters are absent.
2866 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
2867 in the current directory if neither $RANDFILE nor $HOME was set.
2868 RAND_file_name() in 0.9.6a returned NULL in this case. This has
2869 caused some confusion to Windows users who haven't defined $HOME.
2870 Thus RAND_file_name() is changed again: e_os.h can define a
2871 DEFAULT_HOME, which will be used if $HOME is not set.
2872 For Windows, we use "C:"; on other platforms, we still require
2873 environment variables.
2875 *) Move 'if (!initialized) RAND_poll()' into regions protected by
2876 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
2877 having multiple threads call RAND_poll() concurrently.
2880 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
2881 combination of a flag and a thread ID variable.
2882 Otherwise while one thread is in ssleay_rand_bytes (which sets the
2883 flag), *other* threads can enter ssleay_add_bytes without obeying
2884 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
2885 that they do not hold after the first thread unsets add_do_not_lock).
2888 *) Change bctest again: '-x' expressions are not available in all
2892 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
2894 *) Fix a couple of memory leaks in PKCS7_dataDecode()
2895 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
2897 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
2898 the default extension for executables, if any. Also, make the perl
2899 scripts that use symlink() to test if it really exists and use "cp"
2900 if it doesn't. All this made OpenSSL compilable and installable in
2904 *) Fix for asn1_GetSequence() for indefinite length constructed data.
2905 If SEQUENCE is length is indefinite just set c->slen to the total
2906 amount of data available.
2907 [Steve Henson, reported by shige@FreeBSD.org]
2908 [This change does not apply to 0.9.7.]
2910 *) Change bctest to avoid here-documents inside command substitution
2911 (workaround for FreeBSD /bin/sh bug).
2912 For compatibility with Ultrix, avoid shell functions (introduced
2913 in the bctest version that searches along $PATH).
2916 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
2917 with des_encrypt() defined on some operating systems, like Solaris
2921 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
2922 On the Importance of Eliminating Errors in Cryptographic
2923 Computations, J. Cryptology 14 (2001) 2, 101-119,
2924 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
2927 *) MIPS assembler BIGNUM division bug fix.
2930 *) Disabled incorrect Alpha assembler code.
2933 *) Fix PKCS#7 decode routines so they correctly update the length
2934 after reading an EOC for the EXPLICIT tag.
2936 [This change does not apply to 0.9.7.]
2938 *) Fix bug in PKCS#12 key generation routines. This was triggered
2939 if a 3DES key was generated with a 0 initial byte. Include
2940 PKCS12_BROKEN_KEYGEN compilation option to retain the old
2941 (but broken) behaviour.
2944 *) Enhance bctest to search for a working bc along $PATH and print
2946 [Tim Rice <tim@multitalents.net> via Richard Levitte]
2948 *) Fix memory leaks in err.c: free err_data string if necessary;
2949 don't write to the wrong index in ERR_set_error_data.
2952 *) Implement ssl23_peek (analogous to ssl23_read), which previously
2956 *) Replace rdtsc with _emit statements for VC++ version 5.
2957 [Jeremy Cooper <jeremy@baymoo.org>]
2959 *) Make it possible to reuse SSLv2 sessions.
2962 *) In copy_email() check for >= 0 as a return value for
2963 X509_NAME_get_index_by_NID() since 0 is a valid index.
2964 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
2966 *) Avoid coredump with unsupported or invalid public keys by checking if
2967 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
2968 PKCS7_verify() fails with non detached data.
2971 *) Don't use getenv in library functions when run as setuid/setgid.
2972 New function OPENSSL_issetugid().
2975 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
2976 due to incorrect handling of multi-threading:
2978 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
2980 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
2982 3. Count how many times MemCheck_off() has been called so that
2983 nested use can be treated correctly. This also avoids
2984 inband-signalling in the previous code (which relied on the
2985 assumption that thread ID 0 is impossible).
2988 *) Add "-rand" option also to s_client and s_server.
2991 *) Fix CPU detection on Irix 6.x.
2992 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
2993 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
2995 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
2998 [This change does not apply to 0.9.7.]
3000 *) Use the cached encoding of an X509_NAME structure rather than
3001 copying it. This is apparently the reason for the libsafe "errors"
3002 but the code is actually correct.
3005 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
3006 Bleichenbacher's DSA attack.
3007 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
3008 to be set and top=0 forces the highest bit to be set; top=-1 is new
3009 and leaves the highest bit random.
3010 [Ulf Moeller, Bodo Moeller]
3012 *) In the NCONF_...-based implementations for CONF_... queries
3013 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
3014 a temporary CONF structure with the data component set to NULL
3015 (which gives segmentation faults in lh_retrieve).
3016 Instead, use NULL for the CONF pointer in CONF_get_string and
3017 CONF_get_number (which may use environment variables) and directly
3018 return NULL from CONF_get_section.
3021 *) Fix potential buffer overrun for EBCDIC.
3024 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
3025 keyUsage if basicConstraints absent for a CA.
3028 *) Make SMIME_write_PKCS7() write mail header values with a format that
3029 is more generally accepted (no spaces before the semicolon), since
3030 some programs can't parse those values properly otherwise. Also make
3031 sure BIO's that break lines after each write do not create invalid
3035 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
3036 macros previously used would not encode an empty SEQUENCE OF
3037 and break the signature.
3039 [This change does not apply to 0.9.7.]
3041 *) Zero the premaster secret after deriving the master secret in
3045 *) Add some EVP_add_digest_alias registrations (as found in
3046 OpenSSL_add_all_digests()) to SSL_library_init()
3047 aka OpenSSL_add_ssl_algorithms(). This provides improved
3048 compatibility with peers using X.509 certificates
3049 with unconventional AlgorithmIdentifier OIDs.
3052 *) Fix for Irix with NO_ASM.
3053 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
3055 *) ./config script fixes.
3056 [Ulf Moeller, Richard Levitte]
3058 *) Fix 'openssl passwd -1'.
3061 *) Change PKCS12_key_gen_asc() so it can cope with non null
3062 terminated strings whose length is passed in the passlen
3063 parameter, for example from PEM callbacks. This was done
3064 by adding an extra length parameter to asc2uni().
3065 [Steve Henson, reported by <oddissey@samsung.co.kr>]
3067 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
3068 call failed, free the DSA structure.
3071 *) Fix to uni2asc() to cope with zero length Unicode strings.
3072 These are present in some PKCS#12 files.
3075 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
3076 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
3077 when writing a 32767 byte record.
3078 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
3080 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
3081 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
3083 (RSA objects have a reference count access to which is protected
3084 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
3085 so they are meant to be shared between threads.)
3086 [Bodo Moeller, Geoff Thorpe; original patch submitted by
3087 "Reddie, Steven" <Steven.Reddie@ca.com>]
3089 *) Fix a deadlock in CRYPTO_mem_leaks().
3092 *) Use better test patterns in bntest.
3095 *) rand_win.c fix for Borland C.
3098 *) BN_rshift bugfix for n == 0.
3101 *) Add a 'bctest' script that checks for some known 'bc' bugs
3102 so that 'make test' does not abort just because 'bc' is broken.
3105 *) Store verify_result within SSL_SESSION also for client side to
3106 avoid potential security hole. (Re-used sessions on the client side
3107 always resulted in verify_result==X509_V_OK, not using the original
3108 result of the server certificate verification.)
3111 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
3112 SSL3_RT_APPLICATION_DATA, return 0.
3113 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
3117 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
3118 releases, have been re-implemented by renaming the previous
3119 implementations of ssl2_read and ssl3_read to ssl2_read_internal
3120 and ssl3_read_internal, respectively, and adding 'peek' parameters
3121 to them. The new ssl[23]_{read,peek} functions are calls to
3122 ssl[23]_read_internal with the 'peek' flag set appropriately.
3123 A 'peek' parameter has also been added to ssl3_read_bytes, which
3124 does the actual work for ssl3_read_internal.
3127 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
3128 the method-specific "init()" handler. Also clean up ex_data after
3129 calling the method-specific "finish()" handler. Previously, this was
3130 happening the other way round.
3133 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
3134 The previous value, 12, was not always sufficient for BN_mod_exp().
3137 *) Make sure that shared libraries get the internal name engine with
3138 the full version number and not just 0. This should mark the
3139 shared libraries as not backward compatible. Of course, this should
3140 be changed again when we can guarantee backward binary compatibility.
3143 *) Fix typo in get_cert_by_subject() in by_dir.c
3144 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
3146 *) Rework the system to generate shared libraries:
3148 - Make note of the expected extension for the shared libraries and
3149 if there is a need for symbolic links from for example libcrypto.so.0
3150 to libcrypto.so.0.9.7. There is extended info in Configure for
3153 - Make as few rebuilds of the shared libraries as possible.
3155 - Still avoid linking the OpenSSL programs with the shared libraries.
3157 - When installing, install the shared libraries separately from the
3161 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
3163 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
3164 and not in SSL_clear because the latter is also used by the
3165 accept/connect functions; previously, the settings made by
3166 SSL_set_read_ahead would be lost during the handshake.
3167 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
3169 *) Correct util/mkdef.pl to be selective about disabled algorithms.
3170 Previously, it would create entries for disableed algorithms no
3174 *) Added several new manual pages for SSL_* function.
3177 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
3179 *) In ssl23_get_client_hello, generate an error message when faced
3180 with an initial SSL 3.0/TLS record that is too small to contain the
3181 first two bytes of the ClientHello message, i.e. client_version.
3182 (Note that this is a pathologic case that probably has never happened
3183 in real life.) The previous approach was to use the version number
3184 from the record header as a substitute; but our protocol choice
3185 should not depend on that one because it is not authenticated
3186 by the Finished messages.
3189 *) More robust randomness gathering functions for Windows.
3190 [Jeffrey Altman <jaltman@columbia.edu>]
3192 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
3193 not set then we don't setup the error code for issuer check errors
3194 to avoid possibly overwriting other errors which the callback does
3195 handle. If an application does set the flag then we assume it knows
3196 what it is doing and can handle the new informational codes
3200 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
3201 a general "ANY" type, as such it should be able to decode anything
3202 including tagged types. However it didn't check the class so it would
3203 wrongly interpret tagged types in the same way as their universal
3204 counterpart and unknown types were just rejected. Changed so that the
3205 tagged and unknown types are handled in the same way as a SEQUENCE:
3206 that is the encoding is stored intact. There is also a new type
3207 "V_ASN1_OTHER" which is used when the class is not universal, in this
3208 case we have no idea what the actual type is so we just lump them all
3212 *) On VMS, stdout may very well lead to a file that is written to
3213 in a record-oriented fashion. That means that every write() will
3214 write a separate record, which will be read separately by the
3215 programs trying to read from it. This can be very confusing.
3217 The solution is to put a BIO filter in the way that will buffer
3218 text until a linefeed is reached, and then write everything a
3219 line at a time, so every record written will be an actual line,
3220 not chunks of lines and not (usually doesn't happen, but I've
3221 seen it once) several lines in one record. BIO_f_linebuffer() is
3224 Currently, it's a VMS-only method, because that's where it has
3225 been tested well enough.
3228 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
3229 it can return incorrect results.
3230 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
3231 but it was in 0.9.6-beta[12].)
3234 *) Disable the check for content being present when verifying detached
3235 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
3236 include zero length content when signing messages.
3239 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
3240 BIO_ctrl (for BIO pairs).
3243 *) Add DSO method for VMS.
3246 *) Bug fix: Montgomery multiplication could produce results with the
3250 *) Add RPM specification openssl.spec and modify it to build three
3251 packages. The default package contains applications, application
3252 documentation and run-time libraries. The devel package contains
3253 include files, static libraries and function documentation. The
3254 doc package contains the contents of the doc directory. The original
3255 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
3258 *) Add a large number of documentation files for many SSL routines.
3259 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
3261 *) Add a configuration entry for Sony News 4.
3262 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
3264 *) Don't set the two most significant bits to one when generating a
3265 random number < q in the DSA library.
3268 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
3269 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
3270 the underlying transport is blocking) if a handshake took place.
3271 (The default behaviour is needed by applications such as s_client
3272 and s_server that use select() to determine when to use SSL_read;
3273 but for applications that know in advance when to expect data, it
3274 just makes things more complicated.)
3277 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
3281 *) Add a few more EBCDIC conditionals that make `req' and `x509'
3282 work better on such systems.
3283 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
3285 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
3286 Update PKCS12_parse() so it copies the friendlyName and the
3287 keyid to the certificates aux info.
3290 *) Fix bug in PKCS7_verify() which caused an infinite loop
3291 if there was more than one signature.
3292 [Sven Uszpelkat <su@celocom.de>]
3294 *) Major change in util/mkdef.pl to include extra information
3295 about each symbol, as well as presentig variables as well
3296 as functions. This change means that there's n more need
3297 to rebuild the .num files when some algorithms are excluded.
3300 *) Allow the verify time to be set by an application,
3301 rather than always using the current time.
3304 *) Phase 2 verify code reorganisation. The certificate
3305 verify code now looks up an issuer certificate by a
3306 number of criteria: subject name, authority key id
3307 and key usage. It also verifies self signed certificates
3308 by the same criteria. The main comparison function is
3309 X509_check_issued() which performs these checks.
3311 Lot of changes were necessary in order to support this
3312 without completely rewriting the lookup code.
3314 Authority and subject key identifier are now cached.
3316 The LHASH 'certs' is X509_STORE has now been replaced
3317 by a STACK_OF(X509_OBJECT). This is mainly because an
3318 LHASH can't store or retrieve multiple objects with
3319 the same hash value.
3321 As a result various functions (which were all internal
3322 use only) have changed to handle the new X509_STORE
3323 structure. This will break anything that messed round
3324 with X509_STORE internally.
3326 The functions X509_STORE_add_cert() now checks for an
3327 exact match, rather than just subject name.
3329 The X509_STORE API doesn't directly support the retrieval
3330 of multiple certificates matching a given criteria, however
3331 this can be worked round by performing a lookup first
3332 (which will fill the cache with candidate certificates)
3333 and then examining the cache for matches. This is probably
3334 the best we can do without throwing out X509_LOOKUP
3335 entirely (maybe later...).
3337 The X509_VERIFY_CTX structure has been enhanced considerably.
3339 All certificate lookup operations now go via a get_issuer()
3340 callback. Although this currently uses an X509_STORE it
3341 can be replaced by custom lookups. This is a simple way
3342 to bypass the X509_STORE hackery necessary to make this
3343 work and makes it possible to use more efficient techniques
3344 in future. A very simple version which uses a simple
3345 STACK for its trusted certificate store is also provided
3346 using X509_STORE_CTX_trusted_stack().
3348 The verify_cb() and verify() callbacks now have equivalents
3349 in the X509_STORE_CTX structure.
3351 X509_STORE_CTX also has a 'flags' field which can be used
3352 to customise the verify behaviour.
3355 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
3356 excludes S/MIME capabilities.
3359 *) When a certificate request is read in keep a copy of the
3360 original encoding of the signed data and use it when outputing
3361 again. Signatures then use the original encoding rather than
3362 a decoded, encoded version which may cause problems if the
3363 request is improperly encoded.
3366 *) For consistency with other BIO_puts implementations, call
3367 buffer_write(b, ...) directly in buffer_puts instead of calling
3370 In BIO_puts, increment b->num_write as in BIO_write.
3371 [Peter.Sylvester@EdelWeb.fr]
3373 *) Fix BN_mul_word for the case where the word is 0. (We have to use
3374 BN_zero, we may not return a BIGNUM with an array consisting of
3378 *) Avoid calling abort() from within the library when problems are
3379 detected, except if preprocessor symbols have been defined
3380 (such as REF_CHECK, BN_DEBUG etc.).
3383 *) New openssl application 'rsautl'. This utility can be
3384 used for low level RSA operations. DER public key
3385 BIO/fp routines also added.
3388 *) New Configure entry and patches for compiling on QNX 4.
3389 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
3391 *) A demo state-machine implementation was sponsored by
3392 Nuron (http://www.nuron.com/) and is now available in
3393 demos/state_machine.
3396 *) New options added to the 'dgst' utility for signature
3397 generation and verification.
3400 *) Unrecognized PKCS#7 content types are now handled via a
3401 catch all ASN1_TYPE structure. This allows unsupported
3402 types to be stored as a "blob" and an application can
3403 encode and decode it manually.
3406 *) Fix various signed/unsigned issues to make a_strex.c
3408 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
3410 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
3411 length if passed a buffer. ASN1_INTEGER_to_BN failed
3412 if passed a NULL BN and its argument was negative.
3413 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
3415 *) Modification to PKCS#7 encoding routines to output definite
3416 length encoding. Since currently the whole structures are in
3417 memory there's not real point in using indefinite length
3418 constructed encoding. However if OpenSSL is compiled with
3419 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
3422 *) Added BIO_vprintf() and BIO_vsnprintf().
3425 *) Added more prefixes to parse for in the the strings written
3426 through a logging bio, to cover all the levels that are available
3427 through syslog. The prefixes are now:
3429 PANIC, EMERG, EMR => LOG_EMERG
3430 ALERT, ALR => LOG_ALERT
3431 CRIT, CRI => LOG_CRIT
3432 ERROR, ERR => LOG_ERR
3433 WARNING, WARN, WAR => LOG_WARNING
3434 NOTICE, NOTE, NOT => LOG_NOTICE
3435 INFO, INF => LOG_INFO
3436 DEBUG, DBG => LOG_DEBUG
3438 and as before, if none of those prefixes are present at the
3439 beginning of the string, LOG_ERR is chosen.
3441 On Win32, the LOG_* levels are mapped according to this:
3443 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
3444 LOG_WARNING => EVENTLOG_WARNING_TYPE
3445 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
3449 *) Made it possible to reconfigure with just the configuration
3450 argument "reconf" or "reconfigure". The command line arguments
3451 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
3452 and are retrieved from there when reconfiguring.
3456 [Assar Westerlund <assar@sics.se>, Richard Levitte]
3458 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
3461 *) The obj_dat.pl script was messing up the sorting of object
3462 names. The reason was that it compared the quoted version
3463 of strings as a result "OCSP" > "OCSP Signing" because
3464 " > SPACE. Changed script to store unquoted versions of
3465 names and add quotes on output. It was also omitting some
3466 names from the lookup table if they were given a default
3467 value (that is if SN is missing it is given the same
3468 value as LN and vice versa), these are now added on the
3469 grounds that if an object has a name we should be able to
3470 look it up. Finally added warning output when duplicate
3471 short or long names are found.
3474 *) Changes needed for Tandem NSK.
3475 [Scott Uroff <scott@xypro.com>]
3477 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
3478 RSA_padding_check_SSLv23(), special padding was never detected
3479 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
3480 version rollback attacks was not effective.
3482 In s23_clnt.c, don't use special rollback-attack detection padding
3483 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
3484 client; similarly, in s23_srvr.c, don't do the rollback check if
3485 SSL 2.0 is the only protocol enabled in the server.
3488 *) Make it possible to get hexdumps of unprintable data with 'openssl
3489 asn1parse'. By implication, the functions ASN1_parse_dump() and
3490 BIO_dump_indent() are added.
3493 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
3494 these print out strings and name structures based on various
3495 flags including RFC2253 support and proper handling of
3496 multibyte characters. Added options to the 'x509' utility
3497 to allow the various flags to be set.
3500 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
3501 Also change the functions X509_cmp_current_time() and
3502 X509_gmtime_adj() work with an ASN1_TIME structure,
3503 this will enable certificates using GeneralizedTime in validity
3504 dates to be checked.
3507 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
3508 negative public key encodings) on by default,
3509 NO_NEG_PUBKEY_BUG can be set to disable it.
3512 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
3513 content octets. An i2c_ASN1_OBJECT is unnecessary because
3514 the encoding can be trivially obtained from the structure.
3517 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
3518 not read locks (CRYPTO_r_[un]lock).
3521 *) A first attempt at creating official support for shared
3522 libraries through configuration. I've kept it so the
3523 default is static libraries only, and the OpenSSL programs
3524 are always statically linked for now, but there are
3525 preparations for dynamic linking in place.
3526 This has been tested on Linux and Tru64.
3529 *) Randomness polling function for Win9x, as described in:
3530 Peter Gutmann, Software Generation of Practically Strong
3534 *) Fix so PRNG is seeded in req if using an already existing
3538 *) New options to smime application. -inform and -outform
3539 allow alternative formats for the S/MIME message including
3540 PEM and DER. The -content option allows the content to be
3541 specified separately. This should allow things like Netscape
3542 form signing output easier to verify.
3545 *) Fix the ASN1 encoding of tags using the 'long form'.
3548 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
3549 STRING types. These convert content octets to and from the
3550 underlying type. The actual tag and length octets are
3551 already assumed to have been read in and checked. These
3552 are needed because all other string types have virtually
3553 identical handling apart from the tag. By having versions
3554 of the ASN1 functions that just operate on content octets
3555 IMPLICIT tagging can be handled properly. It also allows
3556 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
3557 and ASN1_INTEGER are identical apart from the tag.
3560 *) Change the handling of OID objects as follows:
3562 - New object identifiers are inserted in objects.txt, following
3563 the syntax given in objects.README.
3564 - objects.pl is used to process obj_mac.num and create a new
3566 - obj_dat.pl is used to create a new obj_dat.h, using the data in
3569 This is currently kind of a hack, and the perl code in objects.pl
3570 isn't very elegant, but it works as I intended. The simplest way
3571 to check that it worked correctly is to look in obj_dat.h and
3572 check the array nid_objs and make sure the objects haven't moved
3573 around (this is important!). Additions are OK, as well as
3574 consistent name changes.
3577 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
3580 *) Addition of the command line parameter '-rand file' to 'openssl req'.
3581 The given file adds to whatever has already been seeded into the
3582 random pool through the RANDFILE configuration file option or
3583 environment variable, or the default random state file.
3586 *) mkstack.pl now sorts each macro group into lexical order.
3587 Previously the output order depended on the order the files
3588 appeared in the directory, resulting in needless rewriting
3592 *) Patches to make OpenSSL compile under Win32 again. Mostly
3593 work arounds for the VC++ problem that it treats func() as
3594 func(void). Also stripped out the parts of mkdef.pl that
3595 added extra typesafe functions: these no longer exist.
3598 *) Reorganisation of the stack code. The macros are now all
3599 collected in safestack.h . Each macro is defined in terms of
3600 a "stack macro" of the form SKM_<name>(type, a, b). The
3601 DEBUG_SAFESTACK is now handled in terms of function casts,
3602 this has the advantage of retaining type safety without the
3603 use of additional functions. If DEBUG_SAFESTACK is not defined
3604 then the non typesafe macros are used instead. Also modified the
3605 mkstack.pl script to handle the new form. Needs testing to see
3606 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
3607 the default if no major problems. Similar behaviour for ASN1_SET_OF
3608 and PKCS12_STACK_OF.
3611 *) When some versions of IIS use the 'NET' form of private key the
3612 key derivation algorithm is different. Normally MD5(password) is
3613 used as a 128 bit RC4 key. In the modified case
3614 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
3615 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
3616 as the old Netscape_RSA functions except they have an additional
3617 'sgckey' parameter which uses the modified algorithm. Also added
3618 an -sgckey command line option to the rsa utility. Thanks to
3619 Adrian Peck <bertie@ncipher.com> for posting details of the modified
3620 algorithm to openssl-dev.
3623 *) The evp_local.h macros were using 'c.##kname' which resulted in
3624 invalid expansion on some systems (SCO 5.0.5 for example).
3625 Corrected to 'c.kname'.
3626 [Phillip Porch <root@theporch.com>]
3628 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
3629 a STACK of email addresses from a certificate or request, these look
3630 in the subject name and the subject alternative name extensions and
3631 omit any duplicate addresses.
3634 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
3635 This makes DSA verification about 2 % faster.
3638 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
3639 (meaning that now 2^5 values will be precomputed, which is only 4 KB
3640 plus overhead for 1024 bit moduli).
3641 This makes exponentiations about 0.5 % faster for 1024 bit
3642 exponents (as measured by "openssl speed rsa2048").
3645 *) Rename memory handling macros to avoid conflicts with other
3647 Malloc => OPENSSL_malloc
3648 Malloc_locked => OPENSSL_malloc_locked
3649 Realloc => OPENSSL_realloc
3650 Free => OPENSSL_free
3653 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
3654 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
3657 *) CygWin32 support.
3658 [John Jarvie <jjarvie@newsguy.com>]
3660 *) The type-safe stack code has been rejigged. It is now only compiled
3661 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
3662 by default all type-specific stack functions are "#define"d back to
3663 standard stack functions. This results in more streamlined output
3664 but retains the type-safety checking possibilities of the original
3668 *) The STACK code has been cleaned up, and certain type declarations
3669 that didn't make a lot of sense have been brought in line. This has
3670 also involved a cleanup of sorts in safestack.h to more correctly
3671 map type-safe stack functions onto their plain stack counterparts.
3672 This work has also resulted in a variety of "const"ifications of
3673 lots of the code, especially "_cmp" operations which should normally
3674 be prototyped with "const" parameters anyway.
3677 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
3678 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
3679 (The PRNG state consists of two parts, the large pool 'state' and 'md',
3680 where all of 'md' is used each time the PRNG is used, but 'state'
3681 is used only indexed by a cyclic counter. As entropy may not be
3682 well distributed from the beginning, 'md' is important as a
3683 chaining variable. However, the output function chains only half
3684 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
3685 all of 'md', and seeding with STATE_SIZE dummy bytes will result
3686 in all of 'state' being rewritten, with the new values depending
3687 on virtually all of 'md'. This overcomes the 80 bit limitation.)
3690 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
3691 the handshake is continued after ssl_verify_cert_chain();
3692 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
3693 can lead to 'unexplainable' connection aborts later.
3694 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
3696 *) Major EVP API cipher revision.
3697 Add hooks for extra EVP features. This allows various cipher
3698 parameters to be set in the EVP interface. Support added for variable
3699 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
3700 setting of RC2 and RC5 parameters.
3702 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
3705 Remove lots of duplicated code from the EVP library. For example *every*
3706 cipher init() function handles the 'iv' in the same way according to the
3707 cipher mode. They also all do nothing if the 'key' parameter is NULL and
3708 for CFB and OFB modes they zero ctx->num.
3710 New functionality allows removal of S/MIME code RC2 hack.
3712 Most of the routines have the same form and so can be declared in terms
3715 By shifting this to the top level EVP_CipherInit() it can be removed from
3716 all individual ciphers. If the cipher wants to handle IVs or keys
3717 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
3720 Change lots of functions like EVP_EncryptUpdate() to now return a
3721 value: although software versions of the algorithms cannot fail
3722 any installed hardware versions can.
3725 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
3726 this option is set, tolerate broken clients that send the negotiated
3727 protocol version number instead of the requested protocol version
3731 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
3732 i.e. non-zero for export ciphersuites, zero otherwise.
3733 Previous versions had this flag inverted, inconsistent with
3734 rsa_tmp_cb (..._TMP_RSA_CB).
3735 [Bodo Moeller; problem reported by Amit Chopra]
3737 *) Add missing DSA library text string. Work around for some IIS
3738 key files with invalid SEQUENCE encoding.
3741 *) Add a document (doc/standards.txt) that list all kinds of standards
3742 and so on that are implemented in OpenSSL.
3745 *) Enhance c_rehash script. Old version would mishandle certificates
3746 with the same subject name hash and wouldn't handle CRLs at all.
3747 Added -fingerprint option to crl utility, to support new c_rehash
3751 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
3754 *) Fix for SSL server purpose checking. Server checking was
3755 rejecting certificates which had extended key usage present
3756 but no ssl client purpose.
3757 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
3759 *) Make PKCS#12 code work with no password. The PKCS#12 spec
3760 is a little unclear about how a blank password is handled.
3761 Since the password in encoded as a BMPString with terminating
3762 double NULL a zero length password would end up as just the
3763 double NULL. However no password at all is different and is
3764 handled differently in the PKCS#12 key generation code. NS
3765 treats a blank password as zero length. MSIE treats it as no
3766 password on export: but it will try both on import. We now do
3767 the same: PKCS12_parse() tries zero length and no password if
3768 the password is set to "" or NULL (NULL is now a valid password:
3769 it wasn't before) as does the pkcs12 application.
3772 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
3773 perror when PEM_read_bio_X509_REQ fails, the error message must
3774 be obtained from the error queue.
3777 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
3778 it in ERR_remove_state if appropriate, and change ERR_get_state
3779 accordingly to avoid race conditions (this is necessary because
3780 thread_hash is no longer constant once set).
3783 *) Bugfix for linux-elf makefile.one.
3786 *) RSA_get_default_method() will now cause a default
3787 RSA_METHOD to be chosen if one doesn't exist already.
3788 Previously this was only set during a call to RSA_new()
3789 or RSA_new_method(NULL) meaning it was possible for
3790 RSA_get_default_method() to return NULL.
3793 *) Added native name translation to the existing DSO code
3794 that will convert (if the flag to do so is set) filenames
3795 that are sufficiently small and have no path information
3796 into a canonical native form. Eg. "blah" converted to
3797 "libblah.so" or "blah.dll" etc.
3800 *) New function ERR_error_string_n(e, buf, len) which is like
3801 ERR_error_string(e, buf), but writes at most 'len' bytes
3802 including the 0 terminator. For ERR_error_string_n, 'buf'
3804 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
3806 *) CONF library reworked to become more general. A new CONF
3807 configuration file reader "class" is implemented as well as a
3808 new functions (NCONF_*, for "New CONF") to handle it. The now
3809 old CONF_* functions are still there, but are reimplemented to
3810 work in terms of the new functions. Also, a set of functions
3811 to handle the internal storage of the configuration data is
3812 provided to make it easier to write new configuration file
3813 reader "classes" (I can definitely see something reading a
3814 configuration file in XML format, for example), called _CONF_*,
3815 or "the configuration storage API"...
3817 The new configuration file reading functions are:
3819 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
3820 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
3822 NCONF_default, NCONF_WIN32
3824 NCONF_dump_fp, NCONF_dump_bio
3826 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
3827 NCONF_new creates a new CONF object. This works in the same way
3828 as other interfaces in OpenSSL, like the BIO interface.
3829 NCONF_dump_* dump the internal storage of the configuration file,
3830 which is useful for debugging. All other functions take the same
3831 arguments as the old CONF_* functions wth the exception of the
3832 first that must be a `CONF *' instead of a `LHASH *'.
3834 To make it easer to use the new classes with the old CONF_* functions,
3835 the function CONF_set_default_method is provided.
3838 *) Add '-tls1' option to 'openssl ciphers', which was already
3839 mentioned in the documentation but had not been implemented.
3840 (This option is not yet really useful because even the additional
3841 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
3844 *) Initial DSO code added into libcrypto for letting OpenSSL (and
3845 OpenSSL-based applications) load shared libraries and bind to
3846 them in a portable way.
3847 [Geoff Thorpe, with contributions from Richard Levitte]
3849 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
3851 *) Make sure _lrotl and _lrotr are only used with MSVC.
3853 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
3854 (the default implementation of RAND_status).
3856 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
3857 to '-clrext' (= clear extensions), as intended and documented.
3858 [Bodo Moeller; inconsistency pointed out by Michael Attili
3861 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
3862 was larger than the MD block size.
3863 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
3865 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
3866 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
3867 using the passed key: if the passed key was a private key the result
3868 of X509_print(), for example, would be to print out all the private key
3872 *) des_quad_cksum() byte order bug fix.
3873 [Ulf Möller, using the problem description in krb4-0.9.7, where
3874 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
3876 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
3878 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
3880 *) For easily testing in shell scripts whether some command
3881 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
3882 returns with exit code 0 iff no command of the given name is available.
3883 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
3884 the output goes to stdout and nothing is printed to stderr.
3885 Additional arguments are always ignored.
3887 Since for each cipher there is a command of the same name,
3888 the 'no-cipher' compilation switches can be tested this way.
3890 ('openssl no-XXX' is not able to detect pseudo-commands such
3891 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
3894 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
3897 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
3898 is set; it will be thrown away anyway because each handshake creates
3900 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
3901 to parameters -- in previous versions (since OpenSSL 0.9.3) the
3902 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
3903 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
3906 *) New s_client option -ign_eof: EOF at stdin is ignored, and
3907 'Q' and 'R' lose their special meanings (quit/renegotiate).
3908 This is part of what -quiet does; unlike -quiet, -ign_eof
3909 does not suppress any output.
3912 *) Add compatibility options to the purpose and trust code. The
3913 purpose X509_PURPOSE_ANY is "any purpose" which automatically
3914 accepts a certificate or CA, this was the previous behaviour,
3915 with all the associated security issues.
3917 X509_TRUST_COMPAT is the old trust behaviour: only and
3918 automatically trust self signed roots in certificate store. A
3919 new trust setting X509_TRUST_DEFAULT is used to specify that
3920 a purpose has no associated trust setting and it should instead
3921 use the value in the default purpose.
3924 *) Fix the PKCS#8 DSA private key code so it decodes keys again
3925 and fix a memory leak.
3928 *) In util/mkerr.pl (which implements 'make errors'), preserve
3929 reason strings from the previous version of the .c file, as
3930 the default to have only downcase letters (and digits) in
3931 automatically generated reasons codes is not always appropriate.
3934 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
3935 using strerror. Previously, ERR_reason_error_string() returned
3936 library names as reason strings for SYSerr; but SYSerr is a special
3937 case where small numbers are errno values, not library numbers.
3940 *) Add '-dsaparam' option to 'openssl dhparam' application. This
3941 converts DSA parameters into DH parameters. (When creating parameters,
3942 DSA_generate_parameters is used.)
3945 *) Include 'length' (recommended exponent length) in C code generated
3946 by 'openssl dhparam -C'.
3949 *) The second argument to set_label in perlasm was already being used
3950 so couldn't be used as a "file scope" flag. Moved to third argument
3954 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
3955 instead of RAND_bytes for encryption IVs and salts.
3958 *) Include RAND_status() into RAND_METHOD instead of implementing
3959 it only for md_rand.c Otherwise replacing the PRNG by calling
3960 RAND_set_rand_method would be impossible.
3963 *) Don't let DSA_generate_key() enter an infinite loop if the random
3964 number generation fails.
3967 *) New 'rand' application for creating pseudo-random output.
3970 *) Added configuration support for Linux/IA64
3971 [Rolf Haberrecker <rolf@suse.de>]
3973 *) Assembler module support for Mingw32.
3976 *) Shared library support for HPUX (in shlib/).
3977 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
3979 *) Shared library support for Solaris gcc.
3980 [Lutz Behnke <behnke@trustcenter.de>]
3982 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
3984 *) PKCS7_encrypt() was adding text MIME headers twice because they
3985 were added manually and by SMIME_crlf_copy().
3988 *) In bntest.c don't call BN_rand with zero bits argument.
3989 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
3991 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
3992 case was implemented. This caused BN_div_recp() to fail occasionally.
3995 *) Add an optional second argument to the set_label() in the perl
3996 assembly language builder. If this argument exists and is set
3997 to 1 it signals that the assembler should use a symbol whose
3998 scope is the entire file, not just the current function. This
3999 is needed with MASM which uses the format label:: for this scope.
4000 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
4002 *) Change the ASN1 types so they are typedefs by default. Before
4003 almost all types were #define'd to ASN1_STRING which was causing
4004 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
4008 *) Change names of new functions to the new get1/get0 naming
4009 convention: After 'get1', the caller owns a reference count
4010 and has to call ..._free; 'get0' returns a pointer to some
4011 data structure without incrementing reference counters.
4012 (Some of the existing 'get' functions increment a reference
4013 counter, some don't.)
4014 Similarly, 'set1' and 'add1' functions increase reference
4015 counters or duplicate objects.
4018 *) Allow for the possibility of temp RSA key generation failure:
4019 the code used to assume it always worked and crashed on failure.
4022 *) Fix potential buffer overrun problem in BIO_printf().
4023 [Ulf Möller, using public domain code by Patrick Powell; problem
4024 pointed out by David Sacerdote <das33@cornell.edu>]
4026 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
4027 RAND_egd() and RAND_status(). In the command line application,
4028 the EGD socket can be specified like a seed file using RANDFILE
4032 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
4033 Some CAs (e.g. Verisign) distribute certificates in this form.
4036 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
4037 list to exclude them. This means that no special compilation option
4038 is needed to use anonymous DH: it just needs to be included in the
4042 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
4043 EVP_MD_type. The old functionality is available in a new macro called
4044 EVP_MD_md(). Change code that uses it and update docs.
4047 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
4048 where the 'void *' argument is replaced by a function pointer argument.
4049 Previously 'void *' was abused to point to functions, which works on
4050 many platforms, but is not correct. As these functions are usually
4051 called by macros defined in OpenSSL header files, most source code
4052 should work without changes.
4055 *) <openssl/opensslconf.h> (which is created by Configure) now contains
4056 sections with information on -D... compiler switches used for
4057 compiling the library so that applications can see them. To enable
4058 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
4059 must be defined. E.g.,
4060 #define OPENSSL_ALGORITHM_DEFINES
4061 #include <openssl/opensslconf.h>
4062 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
4063 [Richard Levitte, Ulf and Bodo Möller]
4065 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
4069 *) Change the 'other' type in certificate aux info to a STACK_OF
4070 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
4071 the required ASN1 format: arbitrary types determined by an OID.
4074 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
4075 argument to 'req'. This is not because the function is newer or
4076 better than others it just uses the work 'NEW' in the certificate
4077 request header lines. Some software needs this.
4080 *) Reorganise password command line arguments: now passwords can be
4081 obtained from various sources. Delete the PEM_cb function and make
4082 it the default behaviour: i.e. if the callback is NULL and the
4083 usrdata argument is not NULL interpret it as a null terminated pass
4084 phrase. If usrdata and the callback are NULL then the pass phrase
4085 is prompted for as usual.
4088 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
4089 the support is automatically enabled. The resulting binaries will
4090 autodetect the card and use it if present.
4091 [Ben Laurie and Compaq Inc.]
4093 *) Work around for Netscape hang bug. This sends certificate request
4094 and server done in one record. Since this is perfectly legal in the
4095 SSL/TLS protocol it isn't a "bug" option and is on by default. See
4096 the bugs/SSLv3 entry for more info.
4099 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
4102 *) Add -rand argument to smime and pkcs12 applications and read/write
4106 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
4109 *) Add command line password options to the remaining applications.
4112 *) Bug fix for BN_div_recp() for numerators with an even number of
4116 *) More tests in bntest.c, and changed test_bn output.
4119 *) ./config recognizes MacOS X now.
4122 *) Bug fix for BN_div() when the first words of num and divsor are
4123 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
4126 *) Add support for various broken PKCS#8 formats, and command line
4127 options to produce them.
4130 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
4131 get temporary BIGNUMs from a BN_CTX.
4134 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
4138 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
4139 include a #define from the old name to the new. The original intent
4140 was that statically linked binaries could for example just call
4141 SSLeay_add_all_ciphers() to just add ciphers to the table and not
4142 link with digests. This never worked becayse SSLeay_add_all_digests()
4143 and SSLeay_add_all_ciphers() were in the same source file so calling
4144 one would link with the other. They are now in separate source files.
4147 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
4150 *) Use a less unusual form of the Miller-Rabin primality test (it used
4151 a binary algorithm for exponentiation integrated into the Miller-Rabin
4152 loop, our standard modexp algorithms are faster).
4155 *) Support for the EBCDIC character set completed.
4156 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
4158 *) Source code cleanups: use const where appropriate, eliminate casts,
4159 use void * instead of char * in lhash.
4162 *) Bugfix: ssl3_send_server_key_exchange was not restartable
4163 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
4164 this the server could overwrite ephemeral keys that the client
4168 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
4169 using 50 iterations of the Rabin-Miller test.
4171 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
4172 iterations of the Rabin-Miller test as required by the appendix
4173 to FIPS PUB 186[-1]) instead of DSA_is_prime.
4174 As BN_is_prime_fasttest includes trial division, DSA parameter
4175 generation becomes much faster.
4177 This implies a change for the callback functions in DSA_is_prime
4178 and DSA_generate_parameters: The callback function is called once
4179 for each positive witness in the Rabin-Miller test, not just
4180 occasionally in the inner loop; and the parameters to the
4181 callback function now provide an iteration count for the outer
4182 loop rather than for the current invocation of the inner loop.
4183 DSA_generate_parameters additionally can call the callback
4184 function with an 'iteration count' of -1, meaning that a
4185 candidate has passed the trial division test (when q is generated
4186 from an application-provided seed, trial division is skipped).
4189 *) New function BN_is_prime_fasttest that optionally does trial
4190 division before starting the Rabin-Miller test and has
4191 an additional BN_CTX * argument (whereas BN_is_prime always
4192 has to allocate at least one BN_CTX).
4193 'callback(1, -1, cb_arg)' is called when a number has passed the
4194 trial division stage.
4197 *) Fix for bug in CRL encoding. The validity dates weren't being handled
4201 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
4204 *) New function BN_pseudo_rand().
4207 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
4208 bignum version of BN_from_montgomery() with the working code from
4209 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
4213 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
4214 made it impossible to use the same SSL_SESSION data structure in
4215 SSL2 clients in multiple threads.
4218 *) The return value of RAND_load_file() no longer counts bytes obtained
4219 by stat(). RAND_load_file(..., -1) is new and uses the complete file
4220 to seed the PRNG (previously an explicit byte count was required).
4221 [Ulf Möller, Bodo Möller]
4223 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
4224 used (char *) instead of (void *) and had casts all over the place.
4227 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
4230 *) Retain source code compatibility for BN_prime_checks macro:
4231 BN_is_prime(..., BN_prime_checks, ...) now uses
4232 BN_prime_checks_for_size to determine the appropriate number of
4233 Rabin-Miller iterations.
4236 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
4237 DH_CHECK_P_NOT_SAFE_PRIME.
4238 (Check if this is true? OpenPGP calls them "strong".)
4241 *) Merge the functionality of "dh" and "gendh" programs into a new program
4242 "dhparam". The old programs are retained for now but will handle DH keys
4243 (instead of parameters) in future.
4246 *) Make the ciphers, s_server and s_client programs check the return values
4247 when a new cipher list is set.
4250 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
4251 ciphers. Before when the 56bit ciphers were enabled the sorting was
4254 The syntax for the cipher sorting has been extended to support sorting by
4255 cipher-strength (using the strength_bits hard coded in the tables).
4256 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
4258 Fix a bug in the cipher-command parser: when supplying a cipher command
4259 string with an "undefined" symbol (neither command nor alphanumeric
4260 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
4261 an error is flagged.
4263 Due to the strength-sorting extension, the code of the
4264 ssl_create_cipher_list() function was completely rearranged. I hope that
4265 the readability was also increased :-)
4266 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
4268 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
4269 for the first serial number and places 2 in the serial number file. This
4270 avoids problems when the root CA is created with serial number zero and
4271 the first user certificate has the same issuer name and serial number
4275 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
4276 the new code. Add documentation for this stuff.
4279 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
4280 X509_*() to X509at_*() on the grounds that they don't handle X509
4281 structures and behave in an analagous way to the X509v3 functions:
4282 they shouldn't be called directly but wrapper functions should be used
4285 So we also now have some wrapper functions that call the X509at functions
4286 when passed certificate requests. (TO DO: similar things can be done with
4287 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
4288 things. Some of these need some d2i or i2d and print functionality
4289 because they handle more complex structures.)
4292 *) Add missing #ifndefs that caused missing symbols when building libssl
4293 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
4294 NO_RSA in ssl/s2*.c.
4295 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
4297 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
4298 has a return value which indicates the quality of the random data
4299 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
4300 error queue. New function RAND_pseudo_bytes() generates output that is
4301 guaranteed to be unique but not unpredictable. RAND_add is like
4302 RAND_seed, but takes an extra argument for an entropy estimate
4303 (RAND_seed always assumes full entropy).
4306 *) Do more iterations of Rabin-Miller probable prime test (specifically,
4307 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
4308 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
4309 in crypto/bn/bn_prime.c for the complete table). This guarantees a
4310 false-positive rate of at most 2^-80 for random input.
4313 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
4316 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
4317 in the 0.9.5 release), this returns the chain
4318 from an X509_CTX structure with a dup of the stack and all
4319 the X509 reference counts upped: so the stack will exist
4320 after X509_CTX_cleanup() has been called. Modify pkcs12.c
4323 Also make SSL_SESSION_print() print out the verify return
4327 *) Add manpage for the pkcs12 command. Also change the default
4328 behaviour so MAC iteration counts are used unless the new
4329 -nomaciter option is used. This improves file security and
4330 only older versions of MSIE (4.0 for example) need it.
4333 *) Honor the no-xxx Configure options when creating .DEF files.
4336 *) Add PKCS#10 attributes to field table: challengePassword,
4337 unstructuredName and unstructuredAddress. These are taken from
4338 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
4339 international characters are used.
4341 More changes to X509_ATTRIBUTE code: allow the setting of types
4342 based on strings. Remove the 'loc' parameter when adding
4343 attributes because these will be a SET OF encoding which is sorted
4347 *) Initial changes to the 'req' utility to allow request generation
4348 automation. This will allow an application to just generate a template
4349 file containing all the field values and have req construct the
4352 Initial support for X509_ATTRIBUTE handling. Stacks of these are
4353 used all over the place including certificate requests and PKCS#7
4354 structures. They are currently handled manually where necessary with
4355 some primitive wrappers for PKCS#7. The new functions behave in a
4356 manner analogous to the X509 extension functions: they allow
4357 attributes to be looked up by NID and added.
4359 Later something similar to the X509V3 code would be desirable to
4360 automatically handle the encoding, decoding and printing of the
4361 more complex types. The string types like challengePassword can
4362 be handled by the string table functions.
4364 Also modified the multi byte string table handling. Now there is
4365 a 'global mask' which masks out certain types. The table itself
4366 can use the flag STABLE_NO_MASK to ignore the mask setting: this
4367 is useful when for example there is only one permissible type
4368 (as in countryName) and using the mask might result in no valid
4372 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
4373 SSL_get_peer_finished to allow applications to obtain the latest
4374 Finished messages sent to the peer or expected from the peer,
4375 respectively. (SSL_get_peer_finished is usually the Finished message
4376 actually received from the peer, otherwise the protocol will be aborted.)
4378 As the Finished message are message digests of the complete handshake
4379 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
4380 be used for external authentication procedures when the authentication
4381 provided by SSL/TLS is not desired or is not enough.
4384 *) Enhanced support for Alpha Linux is added. Now ./config checks if
4385 the host supports BWX extension and if Compaq C is present on the
4386 $PATH. Just exploiting of the BWX extension results in 20-30%
4387 performance kick for some algorithms, e.g. DES and RC4 to mention
4388 a couple. Compaq C in turn generates ~20% faster code for MD5 and
4392 *) Add support for MS "fast SGC". This is arguably a violation of the
4393 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
4394 weak crypto and after checking the certificate is SGC a second one
4395 with strong crypto. MS SGC stops the first handshake after receiving
4396 the server certificate message and sends a second client hello. Since
4397 a server will typically do all the time consuming operations before
4398 expecting any further messages from the client (server key exchange
4399 is the most expensive) there is little difference between the two.
4401 To get OpenSSL to support MS SGC we have to permit a second client
4402 hello message after we have sent server done. In addition we have to
4403 reset the MAC if we do get this second client hello.
4406 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
4407 if a DER encoded private key is RSA or DSA traditional format. Changed
4408 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
4409 format DER encoded private key. Newer code should use PKCS#8 format which
4410 has the key type encoded in the ASN1 structure. Added DER private key
4411 support to pkcs8 application.
4414 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
4415 ciphersuites has been selected (as required by the SSL 3/TLS 1
4416 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
4417 is set, we interpret this as a request to violate the specification
4418 (the worst that can happen is a handshake failure, and 'correct'
4419 behaviour would result in a handshake failure anyway).
4422 *) In SSL_CTX_add_session, take into account that there might be multiple
4423 SSL_SESSION structures with the same session ID (e.g. when two threads
4424 concurrently obtain them from an external cache).
4425 The internal cache can handle only one SSL_SESSION with a given ID,
4426 so if there's a conflict, we now throw out the old one to achieve
4430 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
4431 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
4432 some routines that use cipher OIDs: some ciphers do not have OIDs
4433 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
4437 *) Simplify the trust setting structure and code. Now we just have
4438 two sequences of OIDs for trusted and rejected settings. These will
4439 typically have values the same as the extended key usage extension
4440 and any application specific purposes.
4442 The trust checking code now has a default behaviour: it will just
4443 check for an object with the same NID as the passed id. Functions can
4444 be provided to override either the default behaviour or the behaviour
4445 for a given id. SSL client, server and email already have functions
4446 in place for compatibility: they check the NID and also return "trusted"
4447 if the certificate is self signed.
4450 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
4451 traditional format into an EVP_PKEY structure.
4454 *) Add a password callback function PEM_cb() which either prompts for
4455 a password if usr_data is NULL or otherwise assumes it is a null
4456 terminated password. Allow passwords to be passed on command line
4457 environment or config files in a few more utilities.
4460 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
4461 keys. Add some short names for PKCS#8 PBE algorithms and allow them
4462 to be specified on the command line for the pkcs8 and pkcs12 utilities.
4463 Update documentation.
4466 *) Support for ASN1 "NULL" type. This could be handled before by using
4467 ASN1_TYPE but there wasn't any function that would try to read a NULL
4468 and produce an error if it couldn't. For compatibility we also have
4469 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
4470 don't allocate anything because they don't need to.
4473 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
4475 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
4477 *) Rebuild of the memory allocation routines used by OpenSSL code and
4478 possibly others as well. The purpose is to make an interface that
4479 provide hooks so anyone can build a separate set of allocation and
4480 deallocation routines to be used by OpenSSL, for example memory
4481 pool implementations, or something else, which was previously hard
4482 since Malloc(), Realloc() and Free() were defined as macros having
4483 the values malloc, realloc and free, respectively (except for Win32
4484 compilations). The same is provided for memory debugging code.
4485 OpenSSL already comes with functionality to find memory leaks, but
4486 this gives people a chance to debug other memory problems.
4488 With these changes, a new set of functions and macros have appeared:
4490 CRYPTO_set_mem_debug_functions() [F]
4491 CRYPTO_get_mem_debug_functions() [F]
4492 CRYPTO_dbg_set_options() [F]
4493 CRYPTO_dbg_get_options() [F]
4494 CRYPTO_malloc_debug_init() [M]
4496 The memory debug functions are NULL by default, unless the library
4497 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
4498 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
4499 gives the standard debugging functions that come with OpenSSL) or
4500 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
4501 provided by the library user) must be used. When the standard
4502 debugging functions are used, CRYPTO_dbg_set_options can be used to
4503 request additional information:
4504 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
4505 the CRYPTO_MDEBUG_xxx macro when compiling the library.
4507 Also, things like CRYPTO_set_mem_functions will always give the
4508 expected result (the new set of functions is used for allocation
4509 and deallocation) at all times, regardless of platform and compiler
4512 To finish it up, some functions that were never use in any other
4513 way than through macros have a new API and new semantic:
4516 CRYPTO_dbg_realloc()
4519 All macros of value have retained their old syntax.
4520 [Richard Levitte and Bodo Moeller]
4522 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
4523 ordering of SMIMECapabilities wasn't in "strength order" and there
4524 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
4528 *) Some ASN1 types with illegal zero length encoding (INTEGER,
4529 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
4530 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
4532 *) Merge in my S/MIME library for OpenSSL. This provides a simple
4533 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
4534 functionality to handle multipart/signed properly) and a utility
4535 called 'smime' to call all this stuff. This is based on code I
4536 originally wrote for Celo who have kindly allowed it to be
4537 included in OpenSSL.
4540 *) Add variants des_set_key_checked and des_set_key_unchecked of
4541 des_set_key (aka des_key_sched). Global variable des_check_key
4542 decides which of these is called by des_set_key; this way
4543 des_check_key behaves as it always did, but applications and
4544 the library itself, which was buggy for des_check_key == 1,
4545 have a cleaner way to pick the version they need.
4548 *) New function PKCS12_newpass() which changes the password of a
4552 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
4553 dynamic mix. In both cases the ids can be used as an index into the
4554 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
4555 functions so they accept a list of the field values and the
4556 application doesn't need to directly manipulate the X509_TRUST
4560 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
4564 *) Modify the way the V3 extension code looks up extensions. This now
4565 works in a similar way to the object code: we have some "standard"
4566 extensions in a static table which is searched with OBJ_bsearch()
4567 and the application can add dynamic ones if needed. The file
4568 crypto/x509v3/ext_dat.h now has the info: this file needs to be
4569 updated whenever a new extension is added to the core code and kept
4570 in ext_nid order. There is a simple program 'tabtest.c' which checks
4571 this. New extensions are not added too often so this file can readily
4572 be maintained manually.
4574 There are two big advantages in doing things this way. The extensions
4575 can be looked up immediately and no longer need to be "added" using
4576 X509V3_add_standard_extensions(): this function now does nothing.
4577 [Side note: I get *lots* of email saying the extension code doesn't
4578 work because people forget to call this function]
4579 Also no dynamic allocation is done unless new extensions are added:
4580 so if we don't add custom extensions there is no need to call
4581 X509V3_EXT_cleanup().
4584 *) Modify enc utility's salting as follows: make salting the default. Add a
4585 magic header, so unsalted files fail gracefully instead of just decrypting
4586 to garbage. This is because not salting is a big security hole, so people
4587 should be discouraged from doing it.
4590 *) Fixes and enhancements to the 'x509' utility. It allowed a message
4591 digest to be passed on the command line but it only used this
4592 parameter when signing a certificate. Modified so all relevant
4593 operations are affected by the digest parameter including the
4594 -fingerprint and -x509toreq options. Also -x509toreq choked if a
4595 DSA key was used because it didn't fix the digest.
4598 *) Initial certificate chain verify code. Currently tests the untrusted
4599 certificates for consistency with the verify purpose (which is set
4600 when the X509_STORE_CTX structure is set up) and checks the pathlength.
4602 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
4603 this is because it will reject chains with invalid extensions whereas
4604 every previous version of OpenSSL and SSLeay made no checks at all.
4606 Trust code: checks the root CA for the relevant trust settings. Trust
4607 settings have an initial value consistent with the verify purpose: e.g.
4608 if the verify purpose is for SSL client use it expects the CA to be
4609 trusted for SSL client use. However the default value can be changed to
4610 permit custom trust settings: one example of this would be to only trust
4611 certificates from a specific "secure" set of CAs.
4613 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
4614 which should be used for version portability: especially since the
4615 verify structure is likely to change more often now.
4617 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
4618 to set them. If not set then assume SSL clients will verify SSL servers
4621 Two new options to the verify program: -untrusted allows a set of
4622 untrusted certificates to be passed in and -purpose which sets the
4623 intended purpose of the certificate. If a purpose is set then the
4624 new chain verify code is used to check extension consistency.
4627 *) Support for the authority information access extension.
4630 *) Modify RSA and DSA PEM read routines to transparently handle
4631 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
4632 public keys in a format compatible with certificate
4633 SubjectPublicKeyInfo structures. Unfortunately there were already
4634 functions called *_PublicKey_* which used various odd formats so
4635 these are retained for compatibility: however the DSA variants were
4636 never in a public release so they have been deleted. Changed dsa/rsa
4637 utilities to handle the new format: note no releases ever handled public
4638 keys so we should be OK.
4640 The primary motivation for this change is to avoid the same fiasco
4641 that dogs private keys: there are several incompatible private key
4642 formats some of which are standard and some OpenSSL specific and
4643 require various evil hacks to allow partial transparent handling and
4644 even then it doesn't work with DER formats. Given the option anything
4645 other than PKCS#8 should be dumped: but the other formats have to
4646 stay in the name of compatibility.
4648 With public keys and the benefit of hindsight one standard format
4649 is used which works with EVP_PKEY, RSA or DSA structures: though
4650 it clearly returns an error if you try to read the wrong kind of key.
4652 Added a -pubkey option to the 'x509' utility to output the public key.
4653 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
4654 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
4655 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
4656 that do the same as the EVP_PKEY_assign_*() except they up the
4657 reference count of the added key (they don't "swallow" the
4661 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
4662 CRLs would fail if the file contained no certificates or no CRLs:
4663 added a new function to read in both types and return the number
4664 read: this means that if none are read it will be an error. The
4665 DER versions of the certificate and CRL reader would always fail
4666 because it isn't possible to mix certificates and CRLs in DER format
4667 without choking one or the other routine. Changed this to just read
4668 a certificate: this is the best we can do. Also modified the code
4669 in apps/verify.c to take notice of return codes: it was previously
4670 attempting to read in certificates from NULL pointers and ignoring
4671 any errors: this is one reason why the cert and CRL reader seemed
4672 to work. It doesn't check return codes from the default certificate
4673 routines: these may well fail if the certificates aren't installed.
4676 *) Code to support otherName option in GeneralName.
4679 *) First update to verify code. Change the verify utility
4680 so it warns if it is passed a self signed certificate:
4681 for consistency with the normal behaviour. X509_verify
4682 has been modified to it will now verify a self signed
4683 certificate if *exactly* the same certificate appears
4684 in the store: it was previously impossible to trust a
4685 single self signed certificate. This means that:
4686 openssl verify ss.pem
4687 now gives a warning about a self signed certificate but
4688 openssl verify -CAfile ss.pem ss.pem
4692 *) For servers, store verify_result in SSL_SESSION data structure
4693 (and add it to external session representation).
4694 This is needed when client certificate verifications fails,
4695 but an application-provided verification callback (set by
4696 SSL_CTX_set_cert_verify_callback) allows accepting the session
4697 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
4698 but returns 1): When the session is reused, we have to set
4699 ssl->verify_result to the appropriate error code to avoid
4701 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
4703 *) Fix a bug in the new PKCS#7 code: it didn't consider the
4704 case in PKCS7_dataInit() where the signed PKCS7 structure
4705 didn't contain any existing data because it was being created.
4706 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
4708 *) Add a salt to the key derivation routines in enc.c. This
4709 forms the first 8 bytes of the encrypted file. Also add a
4710 -S option to allow a salt to be input on the command line.
4713 *) New function X509_cmp(). Oddly enough there wasn't a function
4714 to compare two certificates. We do this by working out the SHA1
4715 hash and comparing that. X509_cmp() will be needed by the trust
4719 *) SSL_get1_session() is like SSL_get_session(), but increments
4720 the reference count in the SSL_SESSION returned.
4721 [Geoff Thorpe <geoff@eu.c2.net>]
4723 *) Fix for 'req': it was adding a null to request attributes.
4724 Also change the X509_LOOKUP and X509_INFO code to handle
4725 certificate auxiliary information.
4728 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
4732 *) Add the possibility to add extra information to the memory leak
4733 detecting output, to form tracebacks, showing from where each
4734 allocation was originated: CRYPTO_push_info("constant string") adds
4735 the string plus current file name and line number to a per-thread
4736 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
4737 is like calling CYRPTO_pop_info() until the stack is empty.
4738 Also updated memory leak detection code to be multi-thread-safe.
4741 *) Add options -text and -noout to pkcs7 utility and delete the
4742 encryption options which never did anything. Update docs.
4745 *) Add options to some of the utilities to allow the pass phrase
4746 to be included on either the command line (not recommended on
4747 OSes like Unix) or read from the environment. Update the
4748 manpages and fix a few bugs.
4751 *) Add a few manpages for some of the openssl commands.
4754 *) Fix the -revoke option in ca. It was freeing up memory twice,
4755 leaking and not finding already revoked certificates.
4758 *) Extensive changes to support certificate auxiliary information.
4759 This involves the use of X509_CERT_AUX structure and X509_AUX
4760 functions. An X509_AUX function such as PEM_read_X509_AUX()
4761 can still read in a certificate file in the usual way but it
4762 will also read in any additional "auxiliary information". By
4763 doing things this way a fair degree of compatibility can be
4764 retained: existing certificates can have this information added
4765 using the new 'x509' options.
4767 Current auxiliary information includes an "alias" and some trust
4768 settings. The trust settings will ultimately be used in enhanced
4769 certificate chain verification routines: currently a certificate
4770 can only be trusted if it is self signed and then it is trusted
4774 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
4775 The problem was that one of the replacement routines had not been working
4776 since SSLeay releases. For now the offending routine has been replaced
4777 with non-optimised assembler. Even so, this now gives around 95%
4778 performance improvement for 1024 bit RSA signs.
4781 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
4782 handling. Most clients have the effective key size in bits equal to
4783 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
4784 A few however don't do this and instead use the size of the decrypted key
4785 to determine the RC2 key length and the AlgorithmIdentifier to determine
4786 the effective key length. In this case the effective key length can still
4787 be 40 bits but the key length can be 168 bits for example. This is fixed
4788 by manually forcing an RC2 key into the EVP_PKEY structure because the
4789 EVP code can't currently handle unusual RC2 key sizes: it always assumes
4790 the key length and effective key length are equal.
4793 *) Add a bunch of functions that should simplify the creation of
4794 X509_NAME structures. Now you should be able to do:
4795 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
4796 and have it automatically work out the correct field type and fill in
4797 the structures. The more adventurous can try:
4798 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
4799 and it will (hopefully) work out the correct multibyte encoding.
4802 *) Change the 'req' utility to use the new field handling and multibyte
4803 copy routines. Before the DN field creation was handled in an ad hoc
4804 way in req, ca, and x509 which was rather broken and didn't support
4805 BMPStrings or UTF8Strings. Since some software doesn't implement
4806 BMPStrings or UTF8Strings yet, they can be enabled using the config file
4807 using the dirstring_type option. See the new comment in the default
4808 openssl.cnf for more info.
4811 *) Make crypto/rand/md_rand.c more robust:
4812 - Assure unique random numbers after fork().
4813 - Make sure that concurrent threads access the global counter and
4814 md serializably so that we never lose entropy in them
4815 or use exactly the same state in multiple threads.
4816 Access to the large state is not always serializable because
4817 the additional locking could be a performance killer, and
4818 md should be large enough anyway.
4821 *) New file apps/app_rand.c with commonly needed functionality
4822 for handling the random seed file.
4824 Use the random seed file in some applications that previously did not:
4826 dsaparam -genkey (which also ignored its '-rand' option),
4829 x509 (when signing).
4830 Except on systems with /dev/urandom, it is crucial to have a random
4831 seed file at least for key creation, DSA signing, and for DH exchanges;
4832 for RSA signatures we could do without one.
4834 gendh and gendsa (unlike genrsa) used to read only the first byte
4835 of each file listed in the '-rand' option. The function as previously
4836 found in genrsa is now in app_rand.c and is used by all programs
4837 that support '-rand'.
4840 *) In RAND_write_file, use mode 0600 for creating files;
4841 don't just chmod when it may be too late.
4844 *) Report an error from X509_STORE_load_locations
4845 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
4848 *) New function ASN1_mbstring_copy() this copies a string in either
4849 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
4850 into an ASN1_STRING type. A mask of permissible types is passed
4851 and it chooses the "minimal" type to use or an error if not type
4855 *) Add function equivalents to the various macros in asn1.h. The old
4856 macros are retained with an M_ prefix. Code inside the library can
4857 use the M_ macros. External code (including the openssl utility)
4858 should *NOT* in order to be "shared library friendly".
4861 *) Add various functions that can check a certificate's extensions
4862 to see if it usable for various purposes such as SSL client,
4863 server or S/MIME and CAs of these types. This is currently
4864 VERY EXPERIMENTAL but will ultimately be used for certificate chain
4865 verification. Also added a -purpose flag to x509 utility to
4866 print out all the purposes.
4869 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
4873 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
4874 for, obtain and decode and extension and obtain its critical flag.
4875 This allows all the necessary extension code to be handled in a
4876 single function call.
4879 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
4880 platforms. See crypto/rc4/rc4_enc.c for further details.
4883 *) New -noout option to asn1parse. This causes no output to be produced
4884 its main use is when combined with -strparse and -out to extract data
4885 from a file (which may not be in ASN.1 format).
4888 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
4889 when producing the local key id.
4890 [Richard Levitte <levitte@stacken.kth.se>]
4892 *) New option -dhparam in s_server. This allows a DH parameter file to be
4893 stated explicitly. If it is not stated then it tries the first server
4894 certificate file. The previous behaviour hard coded the filename
4898 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
4899 a public key to be input or output. For example:
4900 openssl rsa -in key.pem -pubout -out pubkey.pem
4901 Also added necessary DSA public key functions to handle this.
4904 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
4905 in the message. This was handled by allowing
4906 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
4907 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
4909 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
4910 to the end of the strings whereas this didn't. This would cause problems
4911 if strings read with d2i_ASN1_bytes() were later modified.
4912 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
4914 *) Fix for base64 decode bug. When a base64 bio reads only one line of
4915 data and it contains EOF it will end up returning an error. This is
4916 caused by input 46 bytes long. The cause is due to the way base64
4917 BIOs find the start of base64 encoded data. They do this by trying a
4918 trial decode on each line until they find one that works. When they
4919 do a flag is set and it starts again knowing it can pass all the
4920 data directly through the decoder. Unfortunately it doesn't reset
4921 the context it uses. This means that if EOF is reached an attempt
4922 is made to pass two EOFs through the context and this causes the
4923 resulting error. This can also cause other problems as well. As is
4924 usual with these problems it takes *ages* to find and the fix is
4925 trivial: move one line.
4926 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
4928 *) Ugly workaround to get s_client and s_server working under Windows. The
4929 old code wouldn't work because it needed to select() on sockets and the
4930 tty (for keypresses and to see if data could be written). Win32 only
4931 supports select() on sockets so we select() with a 1s timeout on the
4932 sockets and then see if any characters are waiting to be read, if none
4933 are present then we retry, we also assume we can always write data to
4934 the tty. This isn't nice because the code then blocks until we've
4935 received a complete line of data and it is effectively polling the
4936 keyboard at 1s intervals: however it's quite a bit better than not
4937 working at all :-) A dedicated Windows application might handle this
4938 with an event loop for example.
4941 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
4942 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
4943 will be called when RSA_sign() and RSA_verify() are used. This is useful
4944 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
4945 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
4946 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
4947 This necessitated the support of an extra signature type NID_md5_sha1
4948 for SSL signatures and modifications to the SSL library to use it instead
4949 of calling RSA_public_decrypt() and RSA_private_encrypt().
4952 *) Add new -verify -CAfile and -CApath options to the crl program, these
4953 will lookup a CRL issuers certificate and verify the signature in a
4954 similar way to the verify program. Tidy up the crl program so it
4955 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
4956 less strict. It will now permit CRL extensions even if it is not
4957 a V2 CRL: this will allow it to tolerate some broken CRLs.
4960 *) Initialize all non-automatic variables each time one of the openssl
4961 sub-programs is started (this is necessary as they may be started
4962 multiple times from the "OpenSSL>" prompt).
4963 [Lennart Bang, Bodo Moeller]
4965 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
4966 removing all other RSA functionality (this is what NO_RSA does). This
4967 is so (for example) those in the US can disable those operations covered
4968 by the RSA patent while allowing storage and parsing of RSA keys and RSA
4972 *) Non-copying interface to BIO pairs.
4973 (still largely untested)
4976 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
4977 ASCII string. This was handled independently in various places before.
4980 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
4981 UTF8 strings a character at a time.
4984 *) Use client_version from client hello to select the protocol
4985 (s23_srvr.c) and for RSA client key exchange verification
4986 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
4989 *) Add various utility functions to handle SPKACs, these were previously
4990 handled by poking round in the structure internals. Added new function
4991 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
4992 print, verify and generate SPKACs. Based on an original idea from
4993 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
4996 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
4999 *) Allow the config file extension section to be overwritten on the
5000 command line. Based on an original idea from Massimiliano Pala
5001 <madwolf@comune.modena.it>. The new option is called -extensions
5002 and can be applied to ca, req and x509. Also -reqexts to override
5003 the request extensions in req and -crlexts to override the crl extensions
5007 *) Add new feature to the SPKAC handling in ca. Now you can include
5008 the same field multiple times by preceding it by "XXXX." for example:
5011 this is the same syntax as used in the req config file.
5014 *) Allow certificate extensions to be added to certificate requests. These
5015 are specified in a 'req_extensions' option of the req section of the
5016 config file. They can be printed out with the -text option to req but
5017 are otherwise ignored at present.
5020 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
5021 data read consists of only the final block it would not decrypted because
5022 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
5023 A misplaced 'break' also meant the decrypted final block might not be
5024 copied until the next read.
5027 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
5028 a few extra parameters to the DH structure: these will be useful if
5029 for example we want the value of 'q' or implement X9.42 DH.
5032 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
5033 provides hooks that allow the default DSA functions or functions on a
5034 "per key" basis to be replaced. This allows hardware acceleration and
5035 hardware key storage to be handled without major modification to the
5036 library. Also added low level modexp hooks and CRYPTO_EX structure and
5037 associated functions.
5040 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
5041 as "read only": it can't be written to and the buffer it points to will
5042 not be freed. Reading from a read only BIO is much more efficient than
5043 a normal memory BIO. This was added because there are several times when
5044 an area of memory needs to be read from a BIO. The previous method was
5045 to create a memory BIO and write the data to it, this results in two
5046 copies of the data and an O(n^2) reading algorithm. There is a new
5047 function BIO_new_mem_buf() which creates a read only memory BIO from
5048 an area of memory. Also modified the PKCS#7 routines to use read only
5052 *) Bugfix: ssl23_get_client_hello did not work properly when called in
5053 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
5054 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
5055 but a retry condition occured while trying to read the rest.
5058 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
5059 NID_pkcs7_encrypted by default: this was wrong since this should almost
5060 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
5061 the encrypted data type: this is a more sensible place to put it and it
5062 allows the PKCS#12 code to be tidied up that duplicated this
5066 *) Changed obj_dat.pl script so it takes its input and output files on
5067 the command line. This should avoid shell escape redirection problems
5071 *) Initial support for certificate extension requests, these are included
5072 in things like Xenroll certificate requests. Included functions to allow
5073 extensions to be obtained and added.
5076 *) -crlf option to s_client and s_server for sending newlines as
5077 CRLF (as required by many protocols).
5080 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
5082 *) Install libRSAglue.a when OpenSSL is built with RSAref.
5083 [Ralf S. Engelschall]
5085 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
5086 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
5088 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
5092 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
5093 DH parameters/keys (q is lost during that conversion, but the resulting
5094 DH parameters contain its length).
5096 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
5097 much faster than DH_generate_parameters (which creates parameters
5098 where p = 2*q + 1), and also the smaller q makes DH computations
5099 much more efficient (160-bit exponentiation instead of 1024-bit
5100 exponentiation); so this provides a convenient way to support DHE
5101 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
5102 utter importance to use
5103 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
5105 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
5106 when such DH parameters are used, because otherwise small subgroup
5107 attacks may become possible!
5110 *) Avoid memory leak in i2d_DHparams.
5113 *) Allow the -k option to be used more than once in the enc program:
5114 this allows the same encrypted message to be read by multiple recipients.
5117 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
5118 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
5119 it will always use the numerical form of the OID, even if it has a short
5123 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
5124 method only got called if p,q,dmp1,dmq1,iqmp components were present,
5125 otherwise bn_mod_exp was called. In the case of hardware keys for example
5126 no private key components need be present and it might store extra data
5127 in the RSA structure, which cannot be accessed from bn_mod_exp.
5128 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
5129 private key operations.
5132 *) Added support for SPARC Linux.
5135 *) pem_password_cb function type incompatibly changed from
5136 typedef int pem_password_cb(char *buf, int size, int rwflag);
5138 ....(char *buf, int size, int rwflag, void *userdata);
5139 so that applications can pass data to their callbacks:
5140 The PEM[_ASN1]_{read,write}... functions and macros now take an
5141 additional void * argument, which is just handed through whenever
5142 the password callback is called.
5143 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
5145 New function SSL_CTX_set_default_passwd_cb_userdata.
5147 Compatibility note: As many C implementations push function arguments
5148 onto the stack in reverse order, the new library version is likely to
5149 interoperate with programs that have been compiled with the old
5150 pem_password_cb definition (PEM_whatever takes some data that
5151 happens to be on the stack as its last argument, and the callback
5152 just ignores this garbage); but there is no guarantee whatsoever that
5155 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
5156 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
5157 problems not only on Windows, but also on some Unix platforms.
5158 To avoid problematic command lines, these definitions are now in an
5159 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
5160 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
5163 *) MIPS III/IV assembler module is reimplemented.
5166 *) More DES library cleanups: remove references to srand/rand and
5167 delete an unused file.
5170 *) Add support for the the free Netwide assembler (NASM) under Win32,
5171 since not many people have MASM (ml) and it can be hard to obtain.
5172 This is currently experimental but it seems to work OK and pass all
5173 the tests. Check out INSTALL.W32 for info.
5176 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
5177 without temporary keys kept an extra copy of the server key,
5178 and connections with temporary keys did not free everything in case
5182 *) New function RSA_check_key and new openssl rsa option -check
5183 for verifying the consistency of RSA keys.
5184 [Ulf Moeller, Bodo Moeller]
5186 *) Various changes to make Win32 compile work:
5187 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
5188 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
5189 comparison" warnings.
5190 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
5193 *) Add a debugging option to PKCS#5 v2 key generation function: when
5194 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
5195 derived keys are printed to stderr.
5198 *) Copy the flags in ASN1_STRING_dup().
5199 [Roman E. Pavlov <pre@mo.msk.ru>]
5201 *) The x509 application mishandled signing requests containing DSA
5202 keys when the signing key was also DSA and the parameters didn't match.
5204 It was supposed to omit the parameters when they matched the signing key:
5205 the verifying software was then supposed to automatically use the CA's
5206 parameters if they were absent from the end user certificate.
5208 Omitting parameters is no longer recommended. The test was also
5209 the wrong way round! This was probably due to unusual behaviour in
5210 EVP_cmp_parameters() which returns 1 if the parameters match.
5211 This meant that parameters were omitted when they *didn't* match and
5212 the certificate was useless. Certificates signed with 'ca' didn't have
5214 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
5216 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
5217 The interface is as follows:
5218 Applications can use
5219 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
5220 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
5221 "off" is now the default.
5222 The library internally uses
5223 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
5224 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
5225 to disable memory-checking temporarily.
5227 Some inconsistent states that previously were possible (and were
5228 even the default) are now avoided.
5230 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
5231 with each memory chunk allocated; this is occasionally more helpful
5232 than just having a counter.
5234 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
5236 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
5240 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
5241 which largely parallels "options", but is for changing API behaviour,
5242 whereas "options" are about protocol behaviour.
5243 Initial "mode" flags are:
5245 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
5246 a single record has been written.
5247 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
5248 retries use the same buffer location.
5249 (But all of the contents must be
5253 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
5256 *) Fix problems with no-hmac etc.
5257 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
5259 *) New functions RSA_get_default_method(), RSA_set_method() and
5260 RSA_get_method(). These allows replacement of RSA_METHODs without having
5261 to mess around with the internals of an RSA structure.
5264 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
5265 Also really enable memory leak checks in openssl.c and in some
5267 [Chad C. Mulligan, Bodo Moeller]
5269 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
5270 up the length of negative integers. This has now been simplified to just
5271 store the length when it is first determined and use it later, rather
5272 than trying to keep track of where data is copied and updating it to
5274 [Steve Henson, reported by Brien Wheeler
5275 <bwheeler@authentica-security.com>]
5277 *) Add a new function PKCS7_signatureVerify. This allows the verification
5278 of a PKCS#7 signature but with the signing certificate passed to the
5279 function itself. This contrasts with PKCS7_dataVerify which assumes the
5280 certificate is present in the PKCS#7 structure. This isn't always the
5281 case: certificates can be omitted from a PKCS#7 structure and be
5282 distributed by "out of band" means (such as a certificate database).
5285 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
5286 function prototypes in pem.h, also change util/mkdef.pl to add the
5287 necessary function names.
5290 *) mk1mf.pl (used by Windows builds) did not properly read the
5291 options set by Configure in the top level Makefile, and Configure
5292 was not even able to write more than one option correctly.
5293 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
5296 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
5297 file to be loaded from a BIO or FILE pointer. The BIO version will
5298 for example allow memory BIOs to contain config info.
5301 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
5302 Whoever hopes to achieve shared-library compatibility across versions
5303 must use this, not the compile-time macro.
5304 (Exercise 0.9.4: Which is the minimum library version required by
5306 Note: All this applies only to multi-threaded programs, others don't
5310 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
5311 through a BIO pair triggered the default case, i.e.
5312 SSLerr(...,SSL_R_UNKNOWN_STATE).
5315 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
5316 can use the SSL library even if none of the specific BIOs is
5320 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
5321 for the encoded length.
5322 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
5324 *) Add initial documentation of the X509V3 functions.
5327 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
5328 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
5329 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
5330 secure PKCS#8 private key format with a high iteration count.
5333 *) Fix determination of Perl interpreter: A perl or perl5
5334 _directory_ in $PATH was also accepted as the interpreter.
5335 [Ralf S. Engelschall]
5337 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
5338 wrong with it but it was very old and did things like calling
5339 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
5343 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
5344 to use the new extension code.
5347 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
5348 with macros. This should make it easier to change their form, add extra
5349 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
5353 *) Add to configuration table a new entry that can specify an alternative
5354 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
5355 according to Mark Crispin <MRC@Panda.COM>.
5359 *) DES CBC did not update the IV. Weird.
5362 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
5363 Changing the behaviour of the former might break existing programs --
5364 where IV updating is needed, des_ncbc_encrypt can be used.
5367 *) When bntest is run from "make test" it drives bc to check its
5368 calculations, as well as internally checking them. If an internal check
5369 fails, it needs to cause bc to give a non-zero result or make test carries
5370 on without noticing the failure. Fixed.
5373 *) DES library cleanups.
5376 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
5377 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
5378 ciphers. NOTE: although the key derivation function has been verified
5379 against some published test vectors it has not been extensively tested
5380 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
5384 *) Instead of "mkdir -p", which is not fully portable, use new
5385 Perl script "util/mkdir-p.pl".
5388 *) Rewrite the way password based encryption (PBE) is handled. It used to
5389 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
5390 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
5391 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
5392 the 'parameter' field of the AlgorithmIdentifier is passed to the
5393 underlying key generation function so it must do its own ASN1 parsing.
5394 This has also changed the EVP_PBE_CipherInit() function which now has a
5395 'parameter' argument instead of literal salt and iteration count values
5396 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
5399 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
5400 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
5401 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
5402 KEY" because this clashed with PKCS#8 unencrypted string. Since this
5403 value was just used as a "magic string" and not used directly its
5404 value doesn't matter.
5407 *) Introduce some semblance of const correctness to BN. Shame C doesn't
5411 *) "linux-sparc64" configuration (ultrapenguin).
5412 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
5413 "linux-sparc" configuration.
5414 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
5416 *) config now generates no-xxx options for missing ciphers.
5419 *) Support the EBCDIC character set (work in progress).
5420 File ebcdic.c not yet included because it has a different license.
5421 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
5423 *) Support BS2000/OSD-POSIX.
5424 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
5426 *) Make callbacks for key generation use void * instead of char *.
5429 *) Make S/MIME samples compile (not yet tested).
5432 *) Additional typesafe stacks.
5435 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
5439 Changes between 0.9.3 and 0.9.3a [29 May 1999]
5441 *) New configuration variant "sco5-gcc".
5443 *) Updated some demos.
5444 [Sean O Riordain, Wade Scholine]
5446 *) Add missing BIO_free at exit of pkcs12 application.
5449 *) Fix memory leak in conf.c.
5452 *) Updates for Win32 to assembler version of MD5.
5455 *) Set #! path to perl in apps/der_chop to where we found it
5456 instead of using a fixed path.
5459 *) SHA library changes for irix64-mips4-cc.
5462 *) Improvements for VMS support.
5466 Changes between 0.9.2b and 0.9.3 [24 May 1999]
5468 *) Bignum library bug fix. IRIX 6 passes "make test" now!
5469 This also avoids the problems with SC4.2 and unpatched SC5.
5470 [Andy Polyakov <appro@fy.chalmers.se>]
5472 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
5473 These are required because of the typesafe stack would otherwise break
5474 existing code. If old code used a structure member which used to be STACK
5475 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
5476 sk_num or sk_value it would produce an error because the num, data members
5477 are not present in STACK_OF. Now it just produces a warning. sk_set
5478 replaces the old method of assigning a value to sk_value
5479 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
5480 that does this will no longer work (and should use sk_set instead) but
5481 this could be regarded as a "questionable" behaviour anyway.
5484 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
5485 correctly handle encrypted S/MIME data.
5488 *) Change type of various DES function arguments from des_cblock
5489 (which means, in function argument declarations, pointer to char)
5490 to des_cblock * (meaning pointer to array with 8 char elements),
5491 which allows the compiler to do more typechecking; it was like
5492 that back in SSLeay, but with lots of ugly casts.
5494 Introduce new type const_des_cblock.
5497 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
5498 problems: find RecipientInfo structure that matches recipient certificate
5499 and initialise the ASN1 structures properly based on passed cipher.
5502 *) Belatedly make the BN tests actually check the results.
5505 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
5506 to and from BNs: it was completely broken. New compilation option
5507 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
5508 key elements as negative integers.
5511 *) Reorganize and speed up MD5.
5512 [Andy Polyakov <appro@fy.chalmers.se>]
5515 [Richard Levitte <richard@levitte.org>]
5517 *) New option -out to asn1parse to allow the parsed structure to be
5518 output to a file. This is most useful when combined with the -strparse
5519 option to examine the output of things like OCTET STRINGS.
5522 *) Make SSL library a little more fool-proof by not requiring any longer
5523 that SSL_set_{accept,connect}_state be called before
5524 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
5525 in many applications because usually everything *appeared* to work as
5526 intended anyway -- now it really works as intended).
5529 *) Move openssl.cnf out of lib/.
5532 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
5533 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
5534 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
5535 [Ralf S. Engelschall]
5537 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
5538 handle PKCS#7 enveloped data properly.
5539 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
5541 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
5542 copying pointers. The cert_st handling is changed by this in
5543 various ways (and thus what used to be known as ctx->default_cert
5544 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
5545 any longer when s->cert does not give us what we need).
5546 ssl_cert_instantiate becomes obsolete by this change.
5547 As soon as we've got the new code right (possibly it already is?),
5548 we have solved a couple of bugs of the earlier code where s->cert
5549 was used as if it could not have been shared with other SSL structures.
5551 Note that using the SSL API in certain dirty ways now will result
5552 in different behaviour than observed with earlier library versions:
5553 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
5554 does not influence s as it used to.
5556 In order to clean up things more thoroughly, inside SSL_SESSION
5557 we don't use CERT any longer, but a new structure SESS_CERT
5558 that holds per-session data (if available); currently, this is
5559 the peer's certificate chain and, for clients, the server's certificate
5560 and temporary key. CERT holds only those values that can have
5561 meaningful defaults in an SSL_CTX.
5564 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
5565 from the internal representation. Various PKCS#7 fixes: remove some
5566 evil casts and set the enc_dig_alg field properly based on the signing
5570 *) Allow PKCS#12 password to be set from the command line or the
5571 environment. Let 'ca' get its config file name from the environment
5572 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
5576 *) Allow certificate policies extension to use an IA5STRING for the
5577 organization field. This is contrary to the PKIX definition but
5578 VeriSign uses it and IE5 only recognises this form. Document 'x509'
5582 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
5583 without disallowing inline assembler and the like for non-pedantic builds.
5586 *) Support Borland C++ builder.
5587 [Janez Jere <jj@void.si>, modified by Ulf Möller]
5592 *) SHA-1 cleanups and performance enhancements.
5593 [Andy Polyakov <appro@fy.chalmers.se>]
5595 *) Sparc v8plus assembler for the bignum library.
5596 [Andy Polyakov <appro@fy.chalmers.se>]
5598 *) Accept any -xxx and +xxx compiler options in Configure.
5601 *) Update HPUX configuration.
5604 *) Add missing sk_<type>_unshift() function to safestack.h
5605 [Ralf S. Engelschall]
5607 *) New function SSL_CTX_use_certificate_chain_file that sets the
5608 "extra_cert"s in addition to the certificate. (This makes sense
5609 only for "PEM" format files, as chains as a whole are not
5613 *) Support verify_depth from the SSL API.
5614 x509_vfy.c had what can be considered an off-by-one-error:
5615 Its depth (which was not part of the external interface)
5616 was actually counting the number of certificates in a chain;
5617 now it really counts the depth.
5620 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
5621 instead of X509err, which often resulted in confusing error
5622 messages since the error codes are not globally unique
5623 (e.g. an alleged error in ssl3_accept when a certificate
5624 didn't match the private key).
5626 *) New function SSL_CTX_set_session_id_context that allows to set a default
5627 value (so that you don't need SSL_set_session_id_context for each
5628 connection using the SSL_CTX).
5631 *) OAEP decoding bug fix.
5634 *) Support INSTALL_PREFIX for package builders, as proposed by
5638 *) New Configure options "threads" and "no-threads". For systems
5639 where the proper compiler options are known (currently Solaris
5640 and Linux), "threads" is the default.
5643 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
5646 *) Install various scripts to $(OPENSSLDIR)/misc, not to
5647 $(INSTALLTOP)/bin -- they shouldn't clutter directories
5648 such as /usr/local/bin.
5651 *) "make linux-shared" to build shared libraries.
5652 [Niels Poppe <niels@netbox.org>]
5654 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
5657 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
5658 extension adding in x509 utility.
5661 *) Remove NOPROTO sections and error code comments.
5664 *) Partial rewrite of the DEF file generator to now parse the ANSI
5668 *) New Configure options --prefix=DIR and --openssldir=DIR.
5671 *) Complete rewrite of the error code script(s). It is all now handled
5672 by one script at the top level which handles error code gathering,
5673 header rewriting and C source file generation. It should be much better
5674 than the old method: it now uses a modified version of Ulf's parser to
5675 read the ANSI prototypes in all header files (thus the old K&R definitions
5676 aren't needed for error creation any more) and do a better job of
5677 translating function codes into names. The old 'ASN1 error code imbedded
5678 in a comment' is no longer necessary and it doesn't use .err files which
5679 have now been deleted. Also the error code call doesn't have to appear all
5680 on one line (which resulted in some large lines...).
5683 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
5686 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
5687 0 (which usually indicates a closed connection), but continue reading.
5690 *) Fix some race conditions.
5693 *) Add support for CRL distribution points extension. Add Certificate
5694 Policies and CRL distribution points documentation.
5697 *) Move the autogenerated header file parts to crypto/opensslconf.h.
5700 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
5701 8 of keying material. Merlin has also confirmed interop with this fix
5702 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
5703 [Merlin Hughes <merlin@baltimore.ie>]
5705 *) Fix lots of warnings.
5706 [Richard Levitte <levitte@stacken.kth.se>]
5708 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
5709 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
5710 [Richard Levitte <levitte@stacken.kth.se>]
5712 *) Fix problems with sizeof(long) == 8.
5713 [Andy Polyakov <appro@fy.chalmers.se>]
5715 *) Change functions to ANSI C.
5718 *) Fix typos in error codes.
5719 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
5721 *) Remove defunct assembler files from Configure.
5724 *) SPARC v8 assembler BIGNUM implementation.
5725 [Andy Polyakov <appro@fy.chalmers.se>]
5727 *) Support for Certificate Policies extension: both print and set.
5728 Various additions to support the r2i method this uses.
5731 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
5732 return a const string when you are expecting an allocated buffer.
5735 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
5736 types DirectoryString and DisplayText.
5739 *) Add code to allow r2i extensions to access the configuration database,
5740 add an LHASH database driver and add several ctx helper functions.
5743 *) Fix an evil bug in bn_expand2() which caused various BN functions to
5744 fail when they extended the size of a BIGNUM.
5747 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
5748 support typesafe stack.
5751 *) Fix typo in SSL_[gs]et_options().
5752 [Nils Frostberg <nils@medcom.se>]
5754 *) Delete various functions and files that belonged to the (now obsolete)
5755 old X509V3 handling code.
5758 *) New Configure option "rsaref".
5761 *) Don't auto-generate pem.h.
5764 *) Introduce type-safe ASN.1 SETs.
5767 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
5768 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
5770 *) Introduce type-safe STACKs. This will almost certainly break lots of code
5771 that links with OpenSSL (well at least cause lots of warnings), but fear
5772 not: the conversion is trivial, and it eliminates loads of evil casts. A
5773 few STACKed things have been converted already. Feel free to convert more.
5774 In the fullness of time, I'll do away with the STACK type altogether.
5777 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
5778 specified in <certfile> by updating the entry in the index.txt file.
5779 This way one no longer has to edit the index.txt file manually for
5780 revoking a certificate. The -revoke option does the gory details now.
5781 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
5783 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
5784 `-text' option at all and this way the `-noout -text' combination was
5785 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
5786 [Ralf S. Engelschall]
5788 *) Make sure a corresponding plain text error message exists for the
5789 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
5790 verify callback function determined that a certificate was revoked.
5791 [Ralf S. Engelschall]
5793 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
5794 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
5795 all available cipers including rc5, which was forgotten until now.
5796 In order to let the testing shell script know which algorithms
5797 are available, a new (up to now undocumented) command
5798 "openssl list-cipher-commands" is used.
5801 *) Bugfix: s_client occasionally would sleep in select() when
5802 it should have checked SSL_pending() first.
5805 *) New functions DSA_do_sign and DSA_do_verify to provide access to
5806 the raw DSA values prior to ASN.1 encoding.
5809 *) Tweaks to Configure
5810 [Niels Poppe <niels@netbox.org>]
5812 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
5816 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
5819 *) New config option to avoid instructions that are illegal on the 80386.
5820 The default code is faster, but requires at least a 486.
5823 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
5824 SSL2_SERVER_VERSION (not used at all) macros, which are now the
5825 same as SSL2_VERSION anyway.
5828 *) New "-showcerts" option for s_client.
5831 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
5832 application. Various cleanups and fixes.
5835 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
5836 modify error routines to work internally. Add error codes and PBE init
5837 to library startup routines.
5840 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
5841 packing functions to asn1 and evp. Changed function names and error
5842 codes along the way.
5845 *) PKCS12 integration: and so it begins... First of several patches to
5846 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
5847 objects to objects.h
5850 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
5851 and display support for Thawte strong extranet extension.
5854 *) Add LinuxPPC support.
5855 [Jeff Dubrule <igor@pobox.org>]
5857 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
5858 bn_div_words in alpha.s.
5859 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
5861 *) Make sure the RSA OAEP test is skipped under -DRSAref because
5862 OAEP isn't supported when OpenSSL is built with RSAref.
5863 [Ulf Moeller <ulf@fitug.de>]
5865 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
5866 so they no longer are missing under -DNOPROTO.
5867 [Soren S. Jorvang <soren@t.dk>]
5870 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
5872 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
5873 doesn't work when the session is reused. Coming soon!
5876 *) Fix a security hole, that allows sessions to be reused in the wrong
5877 context thus bypassing client cert protection! All software that uses
5878 client certs and session caches in multiple contexts NEEDS PATCHING to
5879 allow session reuse! A fuller solution is in the works.
5880 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
5882 *) Some more source tree cleanups (removed obsolete files
5883 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
5884 permission on "config" script to be executable) and a fix for the INSTALL
5886 [Ulf Moeller <ulf@fitug.de>]
5888 *) Remove some legacy and erroneous uses of malloc, free instead of
5890 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
5892 *) Make rsa_oaep_test return non-zero on error.
5893 [Ulf Moeller <ulf@fitug.de>]
5895 *) Add support for native Solaris shared libraries. Configure
5896 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
5897 if someone would make that last step automatic.
5898 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
5900 *) ctx_size was not built with the right compiler during "make links". Fixed.
5903 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
5904 except NULL ciphers". This means the default cipher list will no longer
5905 enable NULL ciphers. They need to be specifically enabled e.g. with
5906 the string "DEFAULT:eNULL".
5909 *) Fix to RSA private encryption routines: if p < q then it would
5910 occasionally produce an invalid result. This will only happen with
5911 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
5914 *) Be less restrictive and allow also `perl util/perlpath.pl
5915 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
5916 because this way one can also use an interpreter named `perl5' (which is
5917 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
5918 installed as `perl').
5919 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
5921 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
5922 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
5924 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
5925 advapi32.lib to Win32 build and change the pem test comparision
5926 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
5927 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
5928 and crypto/des/ede_cbcm_enc.c.
5931 *) DES quad checksum was broken on big-endian architectures. Fixed.
5934 *) Comment out two functions in bio.h that aren't implemented. Fix up the
5935 Win32 test batch file so it (might) work again. The Win32 test batch file
5936 is horrible: I feel ill....
5939 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
5940 in e_os.h. Audit of header files to check ANSI and non ANSI
5941 sections: 10 functions were absent from non ANSI section and not exported
5942 from Windows DLLs. Fixed up libeay.num for new functions.
5945 *) Make `openssl version' output lines consistent.
5946 [Ralf S. Engelschall]
5948 *) Fix Win32 symbol export lists for BIO functions: Added
5949 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
5950 to ms/libeay{16,32}.def.
5951 [Ralf S. Engelschall]
5953 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
5954 fine under Unix and passes some trivial tests I've now added. But the
5955 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
5956 added to make sure no one expects that this stuff really works in the
5957 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
5958 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
5960 [Ralf S. Engelschall]
5962 *) Fix the generation of two part addresses in perl.
5963 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
5965 *) Add config entry for Linux on MIPS.
5966 [John Tobey <jtobey@channel1.com>]
5968 *) Make links whenever Configure is run, unless we are on Windoze.
5971 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
5972 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
5976 *) Add a useful kludge to allow package maintainers to specify compiler and
5977 other platforms details on the command line without having to patch the
5978 Configure script everytime: One now can use ``perl Configure
5979 <id>:<details>'', i.e. platform ids are allowed to have details appended
5980 to them (seperated by colons). This is treated as there would be a static
5981 pre-configured entry in Configure's %table under key <id> with value
5982 <details> and ``perl Configure <id>'' is called. So, when you want to
5983 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
5984 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
5985 now, which overrides the FreeBSD-elf entry on-the-fly.
5986 [Ralf S. Engelschall]
5988 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
5991 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
5992 on the `perl Configure ...' command line. This way one can compile
5993 OpenSSL libraries with Position Independent Code (PIC) which is needed
5994 for linking it into DSOs.
5995 [Ralf S. Engelschall]
5997 *) Remarkably, export ciphers were totally broken and no-one had noticed!
6001 *) Cleaned up the LICENSE document: The official contact for any license
6002 questions now is the OpenSSL core team under openssl-core@openssl.org.
6003 And add a paragraph about the dual-license situation to make sure people
6004 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
6005 to the OpenSSL toolkit.
6006 [Ralf S. Engelschall]
6008 *) General source tree makefile cleanups: Made `making xxx in yyy...'
6009 display consistent in the source tree and replaced `/bin/rm' by `rm'.
6010 Additonally cleaned up the `make links' target: Remove unnecessary
6011 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
6012 to speed processing and no longer clutter the display with confusing
6013 stuff. Instead only the actually done links are displayed.
6014 [Ralf S. Engelschall]
6016 *) Permit null encryption ciphersuites, used for authentication only. It used
6017 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
6018 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
6022 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
6023 signed attributes when verifying signatures (this would break them),
6024 the detached data encoding was wrong and public keys obtained using
6025 X509_get_pubkey() weren't freed.
6028 *) Add text documentation for the BUFFER functions. Also added a work around
6029 to a Win95 console bug. This was triggered by the password read stuff: the
6030 last character typed gets carried over to the next fread(). If you were
6031 generating a new cert request using 'req' for example then the last
6032 character of the passphrase would be CR which would then enter the first
6036 *) Added the new `Includes OpenSSL Cryptography Software' button as
6037 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
6038 button and can be used by applications based on OpenSSL to show the
6039 relationship to the OpenSSL project.
6040 [Ralf S. Engelschall]
6042 *) Remove confusing variables in function signatures in files
6043 ssl/ssl_lib.c and ssl/ssl.h.
6044 [Lennart Bong <lob@kulthea.stacken.kth.se>]
6046 *) Don't install bss_file.c under PREFIX/include/
6047 [Lennart Bong <lob@kulthea.stacken.kth.se>]
6049 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
6050 functions that return function pointers and has support for NT specific
6051 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
6052 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
6053 unsigned to signed types: this was killing the Win32 compile.
6056 *) Add new certificate file to stack functions,
6057 SSL_add_dir_cert_subjects_to_stack() and
6058 SSL_add_file_cert_subjects_to_stack(). These largely supplant
6059 SSL_load_client_CA_file(), and can be used to add multiple certs easily
6060 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
6061 This means that Apache-SSL and similar packages don't have to mess around
6062 to add as many CAs as they want to the preferred list.
6065 *) Experiment with doxygen documentation. Currently only partially applied to
6067 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
6068 openssl.doxy as the configuration file.
6071 *) Get rid of remaining C++-style comments which strict C compilers hate.
6072 [Ralf S. Engelschall, pointed out by Carlos Amengual]
6074 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
6075 compiled in by default: it has problems with large keys.
6078 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
6079 DH private keys and/or callback functions which directly correspond to
6080 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
6081 is needed for applications which have to configure certificates on a
6082 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
6084 For the RSA certificate situation is makes no difference, but
6085 for the DSA certificate situation this fixes the "no shared cipher"
6086 problem where the OpenSSL cipher selection procedure failed because the
6087 temporary keys were not overtaken from the context and the API provided
6088 no way to reconfigure them.
6089 The new functions now let applications reconfigure the stuff and they
6090 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
6091 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
6092 non-public-API function ssl_cert_instantiate() is used as a helper
6093 function and also to reduce code redundancy inside ssl_rsa.c.
6094 [Ralf S. Engelschall]
6096 *) Move s_server -dcert and -dkey options out of the undocumented feature
6097 area because they are useful for the DSA situation and should be
6098 recognized by the users.
6099 [Ralf S. Engelschall]
6101 *) Fix the cipher decision scheme for export ciphers: the export bits are
6102 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
6103 SSL_EXP_MASK. So, the original variable has to be used instead of the
6104 already masked variable.
6105 [Richard Levitte <levitte@stacken.kth.se>]
6107 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
6108 [Richard Levitte <levitte@stacken.kth.se>]
6110 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
6111 from `int' to `unsigned int' because it's a length and initialized by
6112 EVP_DigestFinal() which expects an `unsigned int *'.
6113 [Richard Levitte <levitte@stacken.kth.se>]
6115 *) Don't hard-code path to Perl interpreter on shebang line of Configure
6116 script. Instead use the usual Shell->Perl transition trick.
6117 [Ralf S. Engelschall]
6119 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
6120 (in addition to RSA certificates) to match the behaviour of `openssl dsa
6121 -noout -modulus' as it's already the case for `openssl rsa -noout
6122 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
6123 currently the public key is printed (a decision which was already done by
6124 `openssl dsa -modulus' in the past) which serves a similar purpose.
6125 Additionally the NO_RSA no longer completely removes the whole -modulus
6126 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
6128 [Ralf S. Engelschall]
6130 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
6131 BIO. See the source (crypto/evp/bio_ok.c) for more info.
6132 [Arne Ansper <arne@ats.cyber.ee>]
6134 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
6135 to be added. Now both 'req' and 'ca' can use new objects defined in the
6139 *) Add cool BIO that does syslog (or event log on NT).
6140 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
6142 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
6143 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
6144 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
6145 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
6148 *) Add preliminary config info for new extension code.
6151 *) Make RSA_NO_PADDING really use no padding.
6152 [Ulf Moeller <ulf@fitug.de>]
6154 *) Generate errors when private/public key check is done.
6157 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
6158 for some CRL extensions and new objects added.
6161 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
6162 key usage extension and fuller support for authority key id.
6165 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
6166 padding method for RSA, which is recommended for new applications in PKCS
6167 #1 v2.0 (RFC 2437, October 1998).
6168 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
6169 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
6170 against Bleichbacher's attack on RSA.
6171 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
6174 *) Updates to the new SSL compression code
6175 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
6177 *) Fix so that the version number in the master secret, when passed
6178 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
6179 (because the server will not accept higher), that the version number
6180 is 0x03,0x01, not 0x03,0x00
6181 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
6183 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
6184 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
6185 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
6188 *) Support for RAW extensions where an arbitrary extension can be
6189 created by including its DER encoding. See apps/openssl.cnf for
6193 *) Make sure latest Perl versions don't interpret some generated C array
6194 code as Perl array code in the crypto/err/err_genc.pl script.
6195 [Lars Weber <3weber@informatik.uni-hamburg.de>]
6197 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
6198 not many people have the assembler. Various Win32 compilation fixes and
6199 update to the INSTALL.W32 file with (hopefully) more accurate Win32
6203 *) Modify configure script 'Configure' to automatically create crypto/date.h
6204 file under Win32 and also build pem.h from pem.org. New script
6205 util/mkfiles.pl to create the MINFO file on environments that can't do a
6206 'make files': perl util/mkfiles.pl >MINFO should work.
6209 *) Major rework of DES function declarations, in the pursuit of correctness
6210 and purity. As a result, many evil casts evaporated, and some weirdness,
6211 too. You may find this causes warnings in your code. Zapping your evil
6212 casts will probably fix them. Mostly.
6215 *) Fix for a typo in asn1.h. Bug fix to object creation script
6216 obj_dat.pl. It considered a zero in an object definition to mean
6217 "end of object": none of the objects in objects.h have any zeros
6218 so it wasn't spotted.
6219 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
6221 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
6222 Masking (CBCM). In the absence of test vectors, the best I have been able
6223 to do is check that the decrypt undoes the encrypt, so far. Send me test
6224 vectors if you have them.
6227 *) Correct calculation of key length for export ciphers (too much space was
6228 allocated for null ciphers). This has not been tested!
6231 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
6232 message is now correct (it understands "crypto" and "ssl" on its
6233 command line). There is also now an "update" option. This will update
6234 the util/ssleay.num and util/libeay.num files with any new functions.
6236 perl util/mkdef.pl crypto ssl update
6237 it will update them.
6240 *) Overhauled the Perl interface (perl/*):
6241 - ported BN stuff to OpenSSL's different BN library
6242 - made the perl/ source tree CVS-aware
6243 - renamed the package from SSLeay to OpenSSL (the files still contain
6244 their history because I've copied them in the repository)
6245 - removed obsolete files (the test scripts will be replaced
6246 by better Test::Harness variants in the future)
6247 [Ralf S. Engelschall]
6249 *) First cut for a very conservative source tree cleanup:
6250 1. merge various obsolete readme texts into doc/ssleay.txt
6251 where we collect the old documents and readme texts.
6252 2. remove the first part of files where I'm already sure that we no
6253 longer need them because of three reasons: either they are just temporary
6254 files which were left by Eric or they are preserved original files where
6255 I've verified that the diff is also available in the CVS via "cvs diff
6256 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
6257 the crypto/md/ stuff).
6258 [Ralf S. Engelschall]
6260 *) More extension code. Incomplete support for subject and issuer alt
6261 name, issuer and authority key id. Change the i2v function parameters
6262 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
6263 what that's for :-) Fix to ASN1 macro which messed up
6264 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
6267 *) Preliminary support for ENUMERATED type. This is largely copied from the
6271 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
6272 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
6274 *) Make sure `make rehash' target really finds the `openssl' program.
6275 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
6277 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
6278 like to hear about it if this slows down other processors.
6281 *) Add CygWin32 platform information to Configure script.
6282 [Alan Batie <batie@aahz.jf.intel.com>]
6284 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
6285 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
6287 *) New program nseq to manipulate netscape certificate sequences
6290 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
6294 *) Fixes to BN code. Previously the default was to define BN_RECURSION
6295 but the BN code had some problems that would cause failures when
6296 doing certificate verification and some other functions.
6297 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
6299 *) Add ASN1 and PEM code to support netscape certificate sequences.
6302 *) Add ASN1 and PEM code to support netscape certificate sequences.
6305 *) Add several PKIX and private extended key usage OIDs.
6308 *) Modify the 'ca' program to handle the new extension code. Modify
6309 openssl.cnf for new extension format, add comments.
6312 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
6313 and add a sample to openssl.cnf so req -x509 now adds appropriate
6317 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
6318 error code, add initial support to X509_print() and x509 application.
6321 *) Takes a deep breath and start addding X509 V3 extension support code. Add
6322 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
6323 stuff is currently isolated and isn't even compiled yet.
6326 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
6327 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
6328 Removed the versions check from X509 routines when loading extensions:
6329 this allows certain broken certificates that don't set the version
6330 properly to be processed.
6333 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
6334 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
6335 can still be regenerated with "make depend".
6338 *) Spelling mistake in C version of CAST-128.
6339 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
6341 *) Changes to the error generation code. The perl script err-code.pl
6342 now reads in the old error codes and retains the old numbers, only
6343 adding new ones if necessary. It also only changes the .err files if new
6344 codes are added. The makefiles have been modified to only insert errors
6345 when needed (to avoid needlessly modifying header files). This is done
6346 by only inserting errors if the .err file is newer than the auto generated
6347 C file. To rebuild all the error codes from scratch (the old behaviour)
6348 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
6349 or delete all the .err files.
6352 *) CAST-128 was incorrectly implemented for short keys. The C version has
6353 been fixed, but is untested. The assembler versions are also fixed, but
6354 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
6355 to regenerate it if needed.
6356 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
6357 Hagino <itojun@kame.net>]
6359 *) File was opened incorrectly in randfile.c.
6360 [Ulf Möller <ulf@fitug.de>]
6362 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
6363 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
6364 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
6365 al: it's just almost always a UTCTime. Note this patch adds new error
6366 codes so do a "make errors" if there are problems.
6369 *) Correct Linux 1 recognition in config.
6370 [Ulf Möller <ulf@fitug.de>]
6372 *) Remove pointless MD5 hash when using DSA keys in ca.
6373 [Anonymous <nobody@replay.com>]
6375 *) Generate an error if given an empty string as a cert directory. Also
6376 generate an error if handed NULL (previously returned 0 to indicate an
6377 error, but didn't set one).
6378 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
6380 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
6383 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
6384 parameters. This was causing a warning which killed off the Win32 compile.
6387 *) Remove C++ style comments from crypto/bn/bn_local.h.
6388 [Neil Costigan <neil.costigan@celocom.com>]
6390 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
6391 based on a text string, looking up short and long names and finally
6392 "dot" format. The "dot" format stuff didn't work. Added new function
6393 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
6394 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
6395 OID is not part of the table.
6398 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
6399 X509_LOOKUP_by_alias().
6402 *) Sort openssl functions by name.
6405 *) Get the gendsa program working (hopefully) and add it to app list. Remove
6406 encryption from sample DSA keys (in case anyone is interested the password
6410 *) Make _all_ *_free functions accept a NULL pointer.
6411 [Frans Heymans <fheymans@isaserver.be>]
6413 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
6415 [Anonymous <nobody@replay.com>]
6417 *) s_server should send the CAfile as acceptable CAs, not its own cert.
6418 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
6420 *) Don't blow it for numeric -newkey arguments to apps/req.
6421 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
6423 *) Temp key "for export" tests were wrong in s3_srvr.c.
6424 [Anonymous <nobody@replay.com>]
6426 *) Add prototype for temp key callback functions
6427 SSL_CTX_set_tmp_{rsa,dh}_callback().
6430 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
6431 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
6434 *) X509_name_add_entry() freed the wrong thing after an error.
6435 [Arne Ansper <arne@ats.cyber.ee>]
6437 *) rsa_eay.c would attempt to free a NULL context.
6438 [Arne Ansper <arne@ats.cyber.ee>]
6440 *) BIO_s_socket() had a broken should_retry() on Windoze.
6441 [Arne Ansper <arne@ats.cyber.ee>]
6443 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
6444 [Arne Ansper <arne@ats.cyber.ee>]
6446 *) Make sure the already existing X509_STORE->depth variable is initialized
6447 in X509_STORE_new(), but document the fact that this variable is still
6448 unused in the certificate verification process.
6449 [Ralf S. Engelschall]
6451 *) Fix the various library and apps files to free up pkeys obtained from
6452 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
6455 *) Fix reference counting in X509_PUBKEY_get(). This makes
6456 demos/maurice/example2.c work, amongst others, probably.
6457 [Steve Henson and Ben Laurie]
6459 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
6460 `openssl' and second, the shortcut symlinks for the `openssl <command>'
6461 are no longer created. This way we have a single and consistent command
6462 line interface `openssl <command>', similar to `cvs <command>'.
6463 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
6465 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
6466 BIT STRING wrapper always have zero unused bits.
6469 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
6472 *) Make the top-level INSTALL documentation easier to understand.
6475 *) Makefiles updated to exit if an error occurs in a sub-directory
6476 make (including if user presses ^C) [Paul Sutton]
6478 *) Make Montgomery context stuff explicit in RSA data structure.
6481 *) Fix build order of pem and err to allow for generated pem.h.
6484 *) Fix renumbering bug in X509_NAME_delete_entry().
6487 *) Enhanced the err-ins.pl script so it makes the error library number
6488 global and can add a library name. This is needed for external ASN1 and
6489 other error libraries.
6492 *) Fixed sk_insert which never worked properly.
6495 *) Fix ASN1 macros so they can handle indefinite length construted
6496 EXPLICIT tags. Some non standard certificates use these: they can now
6500 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
6501 into a single doc/ssleay.txt bundle. This way the information is still
6502 preserved but no longer messes up this directory. Now it's new room for
6503 the new set of documenation files.
6504 [Ralf S. Engelschall]
6506 *) SETs were incorrectly DER encoded. This was a major pain, because they
6507 shared code with SEQUENCEs, which aren't coded the same. This means that
6508 almost everything to do with SETs or SEQUENCEs has either changed name or
6509 number of arguments.
6510 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
6512 *) Fix test data to work with the above.
6515 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
6516 was already fixed by Eric for 0.9.1 it seems.
6517 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
6519 *) Autodetect FreeBSD3.
6522 *) Fix various bugs in Configure. This affects the following platforms:
6526 unixware-2.0-pentium
6530 *) Eliminate generated files from CVS. Reorder tests to regenerate files
6531 before they are needed.
6534 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
6538 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
6540 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
6541 changed SSLeay to OpenSSL in version strings.
6542 [Ralf S. Engelschall]
6544 *) Some fixups to the top-level documents.
6547 *) Fixed the nasty bug where rsaref.h was not found under compile-time
6548 because the symlink to include/ was missing.
6549 [Ralf S. Engelschall]
6551 *) Incorporated the popular no-RSA/DSA-only patches
6552 which allow to compile a RSA-free SSLeay.
6553 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
6555 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
6556 when "ssleay" is still not found.
6557 [Ralf S. Engelschall]
6559 *) Added more platforms to Configure: Cray T3E, HPUX 11,
6560 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
6562 *) Updated the README file.
6563 [Ralf S. Engelschall]
6565 *) Added various .cvsignore files in the CVS repository subdirs
6566 to make a "cvs update" really silent.
6567 [Ralf S. Engelschall]
6569 *) Recompiled the error-definition header files and added
6570 missing symbols to the Win32 linker tables.
6571 [Ralf S. Engelschall]
6573 *) Cleaned up the top-level documents;
6574 o new files: CHANGES and LICENSE
6575 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
6576 o merged COPYRIGHT into LICENSE
6577 o removed obsolete TODO file
6578 o renamed MICROSOFT to INSTALL.W32
6579 [Ralf S. Engelschall]
6581 *) Removed dummy files from the 0.9.1b source tree:
6582 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
6583 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
6584 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
6585 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
6586 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
6587 [Ralf S. Engelschall]
6589 *) Added various platform portability fixes.
6592 *) The Genesis of the OpenSSL rpject:
6593 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
6594 Young and Tim J. Hudson created while they were working for C2Net until
6596 [The OpenSSL Project]
6599 Changes between 0.9.0b and 0.9.1b [not released]
6601 *) Updated a few CA certificates under certs/
6604 *) Changed some BIGNUM api stuff.
6607 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
6608 DGUX x86, Linux Alpha, etc.
6611 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
6612 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
6616 *) Add -strparse option to asn1pars program which parses nested
6618 [Dr Stephen Henson <shenson@bigfoot.com>]
6620 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
6623 *) DSA fix for "ca" program.
6626 *) Added "-genkey" option to "dsaparam" program.
6629 *) Added RIPE MD160 (rmd160) message digest.
6632 *) Added -a (all) option to "ssleay version" command.
6635 *) Added PLATFORM define which is the id given to Configure.
6638 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
6641 *) Extended the ASN.1 parser routines.
6644 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
6647 *) Added a BN_CTX to the BN library.
6650 *) Fixed the weak key values in DES library
6653 *) Changed API in EVP library for cipher aliases.
6656 *) Added support for RC2/64bit cipher.
6659 *) Converted the lhash library to the crypto/mem.c functions.
6662 *) Added more recognized ASN.1 object ids.
6665 *) Added more RSA padding checks for SSL/TLS.
6668 *) Added BIO proxy/filter functionality.
6671 *) Added extra_certs to SSL_CTX which can be used
6672 send extra CA certificates to the client in the CA cert chain sending
6673 process. It can be configured with SSL_CTX_add_extra_chain_cert().
6676 *) Now Fortezza is denied in the authentication phase because
6677 this is key exchange mechanism is not supported by SSLeay at all.
6680 *) Additional PKCS1 checks.
6683 *) Support the string "TLSv1" for all TLS v1 ciphers.
6686 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
6687 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
6690 *) Fixed a few memory leaks.
6693 *) Fixed various code and comment typos.
6696 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
6697 bytes sent in the client random.
6698 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob