PublicKey are not generic to make it possible to use them // in other types without instantiating them with a specific point type. // They are tied to one of the Curve types below through the curveID field. // All this is duplicated from crypto/internal/fips/ecdsa, but the standards are // different and FIPS 140 does not allow reusing keys across them. type PrivateKey struct { pub PublicKey d []byte // bigmod.(*Nat).Bytes output (fixed length) } func (priv *PrivateKey) Bytes() []byte { return priv.d...