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35 commits

Author SHA1 Message Date
Dr. Stephen Henson
4ed56cba63 New function BN_MONT_CTX_set_locked, to set montgomery parameters in a 
threadsafe manner.

Modify or add calls to use it in rsa, dsa and dh algorithms.
 2005-04-22 13:17:49 +00:00
Dr. Stephen Henson
da8534693c Add lots of checks for memory allocation failure, error codes to indicate 
failure and freeing up memory if a failure occurs.

PR:620
 2004-12-05 01:04:44 +00:00
Richard Levitte
c4ac954c59 Check the return values where memory allocation failures may happen. 
PR: 49
 2002-05-30 16:50:38 +00:00
Bodo Möller
156e85578d Implement EC_GFp_mont_method. 2001-03-08 20:55:16 +00:00
Bodo Möller
8dea52fa42 Fix some things that look like bugs. 
One problem that looked like a problem in bn_recp.c at first turned
out to be a BN_mul bug.  An example is given in bn_recp.c; finding
the bug responsible for this is left as an exercise.
 2000-12-07 22:06:09 +00:00
Richard Levitte
cbd48ba626 More constification of the BN library. 2000-11-16 22:43:32 +00:00
Ben Laurie
757e392d4e Make Rijndael work! Those long flights have some good points. 2000-11-12 02:13:38 +00:00
Bodo Möller
e1a8ac495b tmp2 is not used in BN_mod_mul_montgomery. 2000-11-09 16:39:01 +00:00
Richard Levitte
020fc820dc Constify the BIGNUM routines a bit more. The only trouble were the 
two functions that did expansion on in parameters (BN_mul() and
BN_sqr()).  The problem was solved by making bn_dup_expand() which is
a mix of bn_expand2() and BN_dup().
 2000-11-06 21:15:54 +00:00
Bodo Möller
fe03519704 Totally remove the supposedly 'faster' variant in 
BN_mod_mul_montgomery, which calls bn_sqr_recursive
without much preparation.

bn_sqr_recursive requires the length of its argument to be
a power of 2, which is not always the case here.
There's no reason for not using BN_sqr -- if a simpler
approach to squaring made sense, then why not change
BN_sqr?  (Using BN_sqr should also speed up DH where g is chosen
such that it becomes small [e.g., 2] when converted
to Montgomery representation.)

Case closed :-)
 2000-09-19 23:25:00 +00:00
Bodo Möller
a45bd29535 Document BN_mod_mul_montgomery bug; 
make disabled code slightly more correct (this does not solve
the problem though).
 2000-09-19 18:02:15 +00:00
Bodo Möller
f4364e0730 Disable buggy code variant in BN_mod_mul_montgomery that was enabled 
in 0.9.6-beta1 and 0.9.6-beta2 and caused the BN_mont_exp_mont_word()
failure (bug report "openssh 2.2.0p1 fails with openssl 0.9.6-beta1").
 2000-09-19 17:21:52 +00:00
Ulf Möller
1d84fd64fc Bug fix: Montgomery multiplication could produce results with the wrong 
sign.
 2000-09-14 18:37:53 +00:00
Dr. Stephen Henson
2d978cbd30 Changes needed for Tandem NSK, supplied by Scott Uroff (scott@xypro.com). 
Fix warnings with BIO_dump_indent().
 2000-08-04 00:01:39 +00:00
Ben Laurie
69b5d3c51f Don't let top go below zero! 2000-07-01 16:30:27 +00:00
Ulf Möller
8415060e1e use faster version 2000-06-21 21:20:46 +00:00
Richard Levitte
26a3a48d65 There have been a number of complaints from a number of sources that names 
like Malloc, Realloc and especially Free conflict with already existing names
on some operating systems or other packages.  That is reason enough to change
the names of the OpenSSL memory allocation macros to something that has a
better chance of being unique, like prepending them with OPENSSL_.

This change includes all the name changes needed throughout all C files.
 2000-06-01 22:19:21 +00:00
Ulf Möller
0b8fa44ef0 Bug fix. 2000-03-01 19:08:27 +00:00
Ulf Möller
6535eb1728 Use MONT_WORD macro to control if the word-based or the bignum 
algorithm is used.
 2000-02-05 18:23:05 +00:00
Ulf Möller
9b141126d4 New functions BN_CTX_start(), BN_CTX_get(), BN_CTX_end() to access 
temporary BIGNUMs. BN_CTX still uses a fixed number of BIGNUMs, but
the BN_CTX implementation could now easily be changed.
 2000-02-05 14:17:32 +00:00
Ulf Möller
157be2b67d comment was wrong. 2000-01-27 19:52:58 +00:00
Bodo Möller
2233bed1cb typo in a comment 2000-01-27 14:31:31 +00:00
Bodo Möller
ec1258dd44 Update comments to provide a better approximation of reality. 2000-01-27 13:00:10 +00:00
Bodo Möller
b99b110766 Add a pointer to a paper (is the algorithm in section 4.2 the 
word-based algorithm we are using?)
 2000-01-27 12:52:41 +00:00
Bodo Möller
5f5e96d92b Update references. 2000-01-27 09:15:49 +00:00
Ulf Möller
e93f9a3284 Run ispell. 
Clean up bn_mont.c.
 2000-01-27 01:50:42 +00:00
Ben Laurie
84c15db551 Some constification and stacks that slipped through the cracks (how?). 1999-06-04 22:23:10 +00:00
Ulf Möller
6b691a5c85 Change functions to ANSI C. 1999-04-19 21:31:43 +00:00
Dr. Stephen Henson
7283ecea22 BN_RECURSION causes the stuff in bn_mont.c to fall over for large keys. For 
now change it to BN_RECURSION_MONT so it isn't compiled in.
 1999-02-26 01:37:34 +00:00
Ralf S. Engelschall
1b3b0a54d1 Remember good pointers to Montgomery multiplication algorithm 
descriptions as pointed out by Dave Carman <carman@erols.com>
 1999-02-25 08:00:57 +00:00
Ben Laurie
e03ddfae7e Accept NULL in *_free. 1999-01-07 19:15:59 +00:00
Ralf S. Engelschall
651d0aff98 Various cleanups and fixed by Marc and Ralf to start the OpenTLS project 1998-12-22 15:04:48 +00:00
Ralf S. Engelschall
dfeab0689f Import of old SSLeay release: SSLeay 0.9.1b (unreleased) 1998-12-21 11:00:56 +00:00
Ralf S. Engelschall
58964a4922 Import of old SSLeay release: SSLeay 0.9.0b 1998-12-21 10:56:39 +00:00
Ralf S. Engelschall
d02b48c63a Import of old SSLeay release: SSLeay 0.8.1b 1998-12-21 10:52:47 +00:00