schnorr

type ECPrivateKey struct {
	ECPublicKey
	Key *big.Int
}

type ECPublicKey struct {
	elliptic.Curve
	X, Y *big.Int
}

type Group struct {
	P *big.Int
	G *big.Int
}

type KeyMAC interface {
	// Creates a new, keyed Hash.
	New(key []byte) hash.Hash

	// MaxHashSize returns the maximum number of bytes of the hash
	// that will be used. If Hash.Sum() yields more bytes, they'll
	// be cut off. Ideal is Hash.Sum()==MaxHashSize().
	MaxHashSize() int
}

type PrivateKey struct {
	PublicKey
	Key *big.Int
}

type PublicKey struct {
	Group
	A *big.Int
}

type Signer interface {
	io.Writer

	GetSignature() (*big.Int, []byte)
}

type Verifier interface {
	io.Writer

	Verify() bool
}