void ecp_nistz256_to_mont(unsigned long res[4], const unsigned long in[4]) { static const unsigned long RR[] = { 0x0000000000000003U, 0xfffffffbffffffffU, 0xfffffffffffffffeU, 0x00000004fffffffdU }; ecp_nistz256_mul_mont(res, in, RR); }
void ecp_nistz256_from_mont(unsigned long res[4], const unsigned long in[4]) { static const unsigned long one[] = { 1, 0, 0, 0 }; ecp_nistz256_mul_mont(res, in, one); }
void ecp_nistz256_sqr_mont(Elem r, const Elem a) { /* XXX: Inefficient. TODO: optimize with dedicated squaring routine. */ ecp_nistz256_mul_mont(r, a, a); }