1/* $NetBSD: bn_mp_sqrmod.c,v 1.2 2017/01/28 21:31:47 christos Exp $ */ 2 3#include <tommath.h> 4#ifdef BN_MP_SQRMOD_C 5/* LibTomMath, multiple-precision integer library -- Tom St Denis 6 * 7 * LibTomMath is a library that provides multiple-precision 8 * integer arithmetic as well as number theoretic functionality. 9 * 10 * The library was designed directly after the MPI library by 11 * Michael Fromberger but has been written from scratch with 12 * additional optimizations in place. 13 * 14 * The library is free for all purposes without any express 15 * guarantee it works. 16 * 17 * Tom St Denis, tomstdenis@gmail.com, http://libtom.org 18 */ 19 20/* c = a * a (mod b) */ 21int 22mp_sqrmod (mp_int * a, mp_int * b, mp_int * c) 23{ 24 int res; 25 mp_int t; 26 27 if ((res = mp_init (&t)) != MP_OKAY) { 28 return res; 29 } 30 31 if ((res = mp_sqr (a, &t)) != MP_OKAY) { 32 mp_clear (&t); 33 return res; 34 } 35 res = mp_mod (&t, b, c); 36 mp_clear (&t); 37 return res; 38} 39#endif 40 41/* Source: /cvs/libtom/libtommath/bn_mp_sqrmod.c,v */ 42/* Revision: 1.4 */ 43/* Date: 2006/12/28 01:25:13 */ 44