Mercurial > dropbear
view libtommath/bn_mp_mulmod.c @ 579:8c737cd7c1af
merge of '48fdaa8706d1acda35e9d564adc9a1fbc96c18c8'
and '658fd03abd21e0da7c4c89b9fff9dc693c72daae'
author | Matt Johnston <matt@ucc.asn.au> |
---|---|
date | Sat, 27 Feb 2010 11:53:18 +0000 |
parents | 5ff8218bcee9 |
children | 4fbf9a7556ed |
line wrap: on
line source
#include <tommath.h> #ifdef BN_MP_MULMOD_C /* LibTomMath, multiple-precision integer library -- Tom St Denis * * LibTomMath is a library that provides multiple-precision * integer arithmetic as well as number theoretic functionality. * * The library was designed directly after the MPI library by * 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, [email protected], http://math.libtomcrypt.com */ /* d = a * b (mod c) */ int mp_mulmod (mp_int * a, mp_int * b, mp_int * c, mp_int * d) { int res; mp_int t; if ((res = mp_init (&t)) != MP_OKAY) { return res; } if ((res = mp_mul (a, b, &t)) != MP_OKAY) { mp_clear (&t); return res; } res = mp_mod (&t, c, d); mp_clear (&t); return res; } #endif /* $Source: /cvs/libtom/libtommath/bn_mp_mulmod.c,v $ */ /* $Revision: 1.4 $ */ /* $Date: 2006/03/31 14:18:44 $ */