signer

type Signer interface {
	// Sign takes a message as bytes and returns its signature.
	Sign(ctx context.Context, message []byte) ([]byte, error)

	// GetPublic returns the public key paired with this private key.
	GetPublic() (crypto.PubKey, error)

	// GetAddress returns the address of the signer.
	GetAddress() ([]byte, error)
}