Hello, I've noticed the following typical code sequence:
ecc_modp_mul(ecc, t, x, y); cy = mpn_sub_n(dest, t, ecc->p.m, ecc->p.size); cnd_copy(cy, dest, t, ecc->p.size); What is the benefit of this piece of code over the following one? ecc_modp_mul(ecc, t, x, y); memcpy(dest, t, ecc->p.size * sizeof(mp_limb_t)); Does mpn_sun_n/cnd_copy add any form of side channel attach protection? -- With best wishes Dmitry _______________________________________________ nettle-bugs mailing list [email protected] http://lists.lysator.liu.se/mailman/listinfo/nettle-bugs
