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39 commits

Author SHA1 Message Date
Andy Polyakov
8b07c005fe crypto/bn/bn_nist.c: work around MSC ARM compiler bug. 
RT: 3541
Reviewed-by: Emilia Kasper <emilia@openssl.org>
 2014-09-25 00:42:26 +02:00
Andy Polyakov
750398acd8 bn_nist.c: work around clang 3.0 bug. 2013-02-14 09:51:41 +01:00
Andy Polyakov
32e03a3016 bn_nist.c: compensate for VC bug [with optimization off!]. 
PR: 2837
 2012-07-02 13:30:32 +00:00
Andy Polyakov
0208ab2e3f bn_nist.c: make new optimized code dependent on BN_LLONG. 2012-02-02 07:46:05 +00:00
Andy Polyakov
ce0727f9bd bn_nist.c: harmonize buf in BN_nist_mod_256 with other mod functions. 2012-01-06 13:17:47 +00:00
Andy Polyakov
0985bd4f80 bn_nist.c: fix strict-aliasing compiler warning. 2011-11-13 17:31:03 +00:00
Andy Polyakov
03e389cf04 Allow for dynamic base in Win64 FIPS module. 2011-09-14 20:48:49 +00:00
Andy Polyakov
b0188c4f07 bn_nist.c: fix shadowing warnings. 2011-05-11 20:19:00 +00:00
Andy Polyakov
1fb97e1313 Optimized bn_nist.c. Performance improvement varies from one benchmark 
and platform to another. It was measured to deliver 20-30% better
performance on x86 platforms and 30-40% on x86_64, on nistp384 benchmark.
 2011-05-09 10:16:32 +00:00
Richard Levitte
537c982306 After some adjustments, apply the changes OpenSSL 1.0.0d on OpenVMS 
submitted by Steven M. Schweda <sms@antinode.info>
 2011-03-19 10:58:14 +00:00
Dr. Stephen Henson
133291f8e7 New function BN_nist_mod_func which returns an appropriate function 
if the passed prime is a NIST prime.
 2011-02-14 16:44:29 +00:00
Andy Polyakov
5cabcf96e7 Fix "possible loss of data" Win64 compiler warnings. 2008-12-29 12:35:49 +00:00
Geoff Thorpe
6343829a39 Revert the size_t modifications from HEAD that had led to more 
knock-on work than expected - they've been extracted into a patch
series that can be completed elsewhere, or in a different branch,
before merging back to HEAD.
 2008-11-12 03:58:08 +00:00
Ben Laurie
4d6e1e4f29 size_tification. 2008-11-01 14:37:00 +00:00
Andy Polyakov
aff8259510 Fix argument order in BN_nnmod call and implement rigorous boundary 
condition check.
 2008-10-16 07:54:41 +00:00
Andy Polyakov
762a2e3cab Remove redundant BN_ucmp, fix boundary condition in BN_nist_mod_224 and 
reimplement BN_nist_mod_521.
 2008-10-15 10:47:48 +00:00
Geoff Thorpe
fa0f834c20 Fix build warnings. 2008-09-15 04:02:37 +00:00
Bodo Möller
f8d6be3f81 Some precautions to avoid potential security-relevant problems. 2008-09-14 13:42:34 +00:00
Andy Polyakov
ba6f95e81b Add 64-bit support to BN_nist_mod_244 and engage BN_nist_mod_* on 64-bit 
platforms.
 2008-04-24 10:04:26 +00:00
Andy Polyakov
830b8877ba Takanori Yanagisawa has shown how to correctly use pre-computed values. 
So in a sense this commit reverts few latest ones fixing bugs in original
code and improving it, most notably adding 64-bit support [though not in
BN_nist_mod_224 yet].
PR: 1593
 2008-04-23 08:10:25 +00:00
Andy Polyakov
9912ab6770 Resolve __DECC warning and keep disclaiming support for 16-bit platforms. 2008-04-18 15:47:30 +00:00
Andy Polyakov
299ab428ce Fix remaining BN_nist_mod_*. 
PR: 1593
 2008-04-18 15:40:57 +00:00
Andy Polyakov
d4122504a2 Clarifying comment. 2008-04-09 12:06:42 +00:00
Andy Polyakov
2c4226c42b Do BN_nist_mod_384 by the book, as cheating doesn't work. Other functions 
will be revised too.
PR: 1593
 2008-04-09 11:36:04 +00:00
Andy Polyakov
2819ffb520 Fix fast reduction on NIST curves (as well BN_NIST_ADD_ONE macro). 
PR: 1593
 2008-04-01 08:39:08 +00:00
Ben Laurie
a51a97262d Brought forward from 0.9.8 - 64 bit warning fixes and fussy compiler fixes. 2005-06-29 11:02:15 +00:00
Richard Levitte
9426364be9 Typo 2005-05-29 12:11:50 +00:00
Richard Levitte
b172dec864 DEC C complains about bad subscript, but we know better, so let's shut it up. 2005-05-24 03:22:53 +00:00
Nils Larsch
fcb41c0ee8 rewrite of bn_nist.c, disable support for some curves on 64 bit platforms 
for now (it was broken anyway)
 2005-05-03 20:23:33 +00:00
Geoff Thorpe
b6358c89a1 Convert openssl code not to assume the deprecated form of BN_zero(). 
Remove certain redundant BN_zero() initialisations, because BN_CTX_get(),
BN_init(), [etc] already initialise to zero.

Correct error checking in bn_sqr.c, and be less wishy-wash about how/why
the result's 'top' value is set (note also, 'max' is always > 0 at this
point).
 2004-03-13 23:57:20 +00:00
Geoff Thorpe
a8aa764d3c Minimise the amount of code dependent on BN_DEBUG_RAND. In particular, 
redefine bn_clear_top2max() to be a NOP in the non-debugging case, and
remove some unnecessary usages in bn_nist.c.

Submitted by: Nils Larsch
Reviewed by: Geoff Thorpe, Ulf Möller
 2004-03-09 03:53:40 +00:00
Andy Polyakov
27b2b78f90 Even though C specification explicitly says that constant type "stretches" 
automatically to accomodate the value, some compilers fail to do so. Most
notably 0x0123456789ABCDEF should come out as long long in 32-bit context,
but HP compiler truncates it to 32-bit value. Which in turn breaks GF(2^m)
arithmetics in hpux-parisc2-cc build. Therefore this fix...
 2004-01-25 10:53:43 +00:00
Geoff Thorpe
0ef85c7f45 This is a revert of my previous commit to "improve" the declaration of 
constant BIGNUMs. It turns out that this trips up different but equally
useful compiler warnings to -Wcast-qual, and so wasn't worth the ugliness
it created. (Thanks to Ulf for the forehead-slap.)
 2003-11-05 19:30:29 +00:00
Ulf Möller
078dd1a0f9 typo in comment 2003-11-05 17:28:59 +00:00
Geoff Thorpe
d870740cd7 Put the first stage of my bignum debugging adventures into CVS. This code 
is itself experimental, and in addition may cause execution to break on
existing openssl "bugs" that previously were harmless or at least
invisible.
 2003-11-04 22:54:49 +00:00
Geoff Thorpe
c465e7941e This is the least unacceptable way I've found for declaring the bignum data 
and structures as constant without having to cast away const at any point.
There is still plenty of other code that makes gcc's "-Wcast-qual" unhappy,
but crypto/bn/ is now ok. Purists are welcome to suggest alternatives.
 2003-11-04 00:29:09 +00:00
Geoff Thorpe
31166ec8f3 Some provisional bignum debugging has begun to detect inconsistent BIGNUM 
structures being passed in to or out of API functions, and this corrects a
couple of cases found so far.

Also, lop off a couple of bytes of white-space.
 2003-10-29 20:47:49 +00:00
Bodo Möller
19b8d06a79 clean up new code for NIST primes 
create new lock CRYPTO_LOCK_BN to avoid race condition
 2002-10-28 14:02:19 +00:00
Bodo Möller
5c6bf03117 fast reduction for NIST curves 
Submitted by: Nils Larsch
 2002-10-28 13:23:24 +00:00