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24 commits

Author SHA1 Message Date
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
Bodo Möller
25439b76ad Move reduction step from BN_mod_exp to BN_mod_exp_mont_word. 
Fix BN_mod_exp_simple for a==0 (mod m).
Skip useless round in BN_mod_sqrt (1 is always a square, no need
to test BN_kronecker for it).
 2000-11-30 09:45:26 +00:00
Bodo Möller
73c2522c7c Handle special cases correctly in exponentation functions. 
test_bn still fails in the BN_sqrt test because
small primes appear to turn into zero for no
obvious reason, leading to "div by zero" errors.
 2000-11-30 00:33:18 +00:00
Bodo Möller
cd2eebfd64 BN_sqrt 2000-11-30 00:18:19 +00:00
Bodo Möller
499e167fda Improve BN_mod_inverse performance. 
Get the BN_mod_exp_mont bugfix (for handling negative inputs) correct
this time.
 2000-11-29 09:41:19 +00:00
Bodo Möller
c94b6de017 Timings. 2000-11-28 11:47:51 +00:00
Bodo Möller
78a0c1f18d modular arithmetics 
"make update"
 2000-11-26 16:42:38 +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
Richard Levitte
5270e7025e Merge the engine branch into the main trunk. All conflicts resolved. 
At the same time, add VMS support for Rijndael.
 2000-10-26 21:07:28 +00:00
Bodo Möller
fc57ebc057 Actually comment out the parts of BN_MOD_MUL_WORD that I inteded to 
comment out in the previous commit
 2000-06-23 08:10:28 +00:00
Bodo Möller
e958c5afe7 In BN_mod_exp_mont_word, avoid one application of BN_MOD_MUL_WORD, 
and for small 'a' also a couple of calls to
BN_mod_mul_montgomery(r, r, r, ...).
 2000-06-23 05:51:37 +00:00
Bodo Möller
c3b1424cc0 Use BN_CTX_end when exiting early from BN_mod_exp_mont_word because 
BN_mod_exp_atalla could be used.
 2000-06-13 13:50:42 +00:00
Geoff Thorpe
8ba6d1b0cc The atalla functionality doesn't work with the "word" version of 
BN_mod_exp. Call the regular atalla mod_exp operation instead.
 2000-06-13 13:18:51 +00:00
Bodo Möller
dc434bbcb0 Slightly faster DSA verification (BN_mod_exp2_mont), 
marginally faster BN_mod_exp for 1024 bit exponents.
 2000-06-08 20:26:03 +00:00
Bodo Möller
f8989a2155 Use the equivalent of a sliding window (without precomputation 
because we're only handling words anyway) in BN_mod_exp_mont_word
making it a little faster for very small exponents,
and adjust the performance gain estimate in CHANGES according
to slightly more thorough measurements.
(15% faster than BN_mod_exp_mont for "large" base,
20% faster than BN_mod_exp_mont for small base.)
 2000-06-08 09:39:28 +00:00
Bodo Möller
6dad7bd69c Speed up DH with small generator. 2000-06-07 21:29:25 +00:00
Ben Laurie
bd03b99b9b Add support for Compaq Atalla crypto accelerator. 2000-02-16 22:15:39 +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
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
Mark J. Cox
a0a5407901 Fixes to BN code. Previously the default was to define BN_RECURSION 
but the BN code had some problems that would cause failures when
doing certificate verification and some other functions.

Submitted by: Eric A Young from a C2Net version of SSLeay
Reviewed by: Mark J Cox
PR:
 1999-01-28 10:40:38 +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