int spModMult(DIGIT_T *a, DIGIT_T x, DIGIT_T y, DIGIT_T m)
{ /* Computes a = (x * y) mod m */
/* Calc p[2] = x * y */
DIGIT_T p[2];
spMultiply(p, x, y);
/* Then modulo */
*a = mpShortMod(p, m, 2);
return 0;
}
bdigit_t bdShortMod(T r, T u, bdigit_t d)
/* Returns r = u mod d */
{
DIGIT_T rr;
assert(r && u);
rr = mpShortMod(u->digits, d, u->ndigits);
bdSetShort(r, rr);
return rr;
}
