diff options
author | Steffen Jaeckel <s_jaeckel@gmx.de> | 2019-09-16 15:50:38 +0200 |
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committer | Matt Johnston <matt@ucc.asn.au> | 2019-09-16 21:50:38 +0800 |
commit | 615ed4e46a52b6bfe0bfc581b8c2fbcc6cc488d1 (patch) | |
tree | 12b2ba29ae4c42fc65d64d43968c5d03ab3f4452 /libtommath/bn_mp_add.c | |
parent | fa116e983b4931010e1082dd5c8bf38bbc77718c (diff) |
update ltm to 1.1.0 and enable FIPS 186.4 compliant key-generation (#79)
* make key-generation compliant to FIPS 186.4
* fix includes in tommath_class.h
* update fuzzcorpus instead of error-out
* fixup fuzzing make-targets
* update Makefile.in
* apply necessary patches to ltm sources
* clean-up not required ltm files
* update to vanilla ltm 1.1.0
this already only contains the required files
* remove set/get double
Diffstat (limited to 'libtommath/bn_mp_add.c')
-rw-r--r-- | libtommath/bn_mp_add.c | 61 |
1 files changed, 29 insertions, 32 deletions
diff --git a/libtommath/bn_mp_add.c b/libtommath/bn_mp_add.c index bdb166f..3124ed8 100644 --- a/libtommath/bn_mp_add.c +++ b/libtommath/bn_mp_add.c @@ -1,4 +1,4 @@ -#include <tommath_private.h> +#include "tommath_private.h" #ifdef BN_MP_ADD_C /* LibTomMath, multiple-precision integer library -- Tom St Denis * @@ -9,45 +9,42 @@ * Michael Fromberger but has been written from scratch with * additional optimizations in place. * - * The library is free for all purposes without any express - * guarantee it works. - * - * Tom St Denis, tstdenis82@gmail.com, http://libtom.org + * SPDX-License-Identifier: Unlicense */ /* high level addition (handles signs) */ -int mp_add (mp_int * a, mp_int * b, mp_int * c) +int mp_add(const mp_int *a, const mp_int *b, mp_int *c) { - int sa, sb, res; + int sa, sb, res; - /* get sign of both inputs */ - sa = a->sign; - sb = b->sign; + /* get sign of both inputs */ + sa = a->sign; + sb = b->sign; - /* handle two cases, not four */ - if (sa == sb) { - /* both positive or both negative */ - /* add their magnitudes, copy the sign */ - c->sign = sa; - res = s_mp_add (a, b, c); - } else { - /* one positive, the other negative */ - /* subtract the one with the greater magnitude from */ - /* the one of the lesser magnitude. The result gets */ - /* the sign of the one with the greater magnitude. */ - if (mp_cmp_mag (a, b) == MP_LT) { - c->sign = sb; - res = s_mp_sub (b, a, c); - } else { + /* handle two cases, not four */ + if (sa == sb) { + /* both positive or both negative */ + /* add their magnitudes, copy the sign */ c->sign = sa; - res = s_mp_sub (a, b, c); - } - } - return res; + res = s_mp_add(a, b, c); + } else { + /* one positive, the other negative */ + /* subtract the one with the greater magnitude from */ + /* the one of the lesser magnitude. The result gets */ + /* the sign of the one with the greater magnitude. */ + if (mp_cmp_mag(a, b) == MP_LT) { + c->sign = sb; + res = s_mp_sub(b, a, c); + } else { + c->sign = sa; + res = s_mp_sub(a, b, c); + } + } + return res; } #endif -/* ref: $Format:%D$ */ -/* git commit: $Format:%H$ */ -/* commit time: $Format:%ai$ */ +/* ref: HEAD -> master, tag: v1.1.0 */ +/* git commit: 08549ad6bc8b0cede0b357a9c341c5c6473a9c55 */ +/* commit time: 2019-01-28 20:32:32 +0100 */ |