tomsfastmath/fp_sqrmod.c
2010-07-22 10:06:21 +02:00

20 lines
417 B
C

/* TomsFastMath, a fast ISO C bignum library.
*
* This project is meant to fill in where LibTomMath
* falls short. That is speed ;-)
*
* This project is public domain and free for all purposes.
*
* Tom St Denis, tomstdenis@iahu.ca
*/
#include <tfm.h>
/* c = a * a (mod b) */
int fp_sqrmod(fp_int *a, fp_int *b, fp_int *c)
{
fp_int tmp;
fp_zero(&tmp);
fp_sqr(a, &tmp);
return fp_mod(&tmp, b, c);
}