pniels_t
static void pniels_to_pt(curve448_point_t e, const pniels_t d)
static void add_pniels_to_pt(curve448_point_t p, const pniels_t pn,
static void sub_pniels_from_pt(curve448_point_t p, const pniels_t pn,
static void prepare_wnaf_table(pniels_t *output,
pniels_t twop;
pniels_t precmp_var[1 << C448_WNAF_VAR_TABLE_BITS];
static void pt_to_pniels(pniels_t b, const curve448_point_t a)