#include "tommath_private.h" #ifdef BN_MP_MULMOD_C /* LibTomMath, multiple-precision integer library -- Tom St Denis */ /* SPDX-License-Identifier: Unlicense */ /* d = a * b (mod c) */ int mp_mulmod(const mp_int *a, const mp_int *b, const mp_int *c, mp_int *d) { int res; mp_int t; if ((res = mp_init_size(&t, c->used)) != 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