dsa

type DSAPrivateKey [20]byte

type DSAPublicKey [128]byte

type DSASigner struct {
	// contains filtered or unexported fields
}

type DSAVerifier struct {
	// contains filtered or unexported fields
}

type Signer interface {
	// sign data with our private key by calling SignHash after hashing the data we are given
	// return signature or nil signature and error if an error happened
	Sign(data []byte) (sig []byte, err error)

	// sign hash of data with our private key
	// return signature or nil signature and error if an error happened
	SignHash(h []byte) (sig []byte, err error)
}

type Verifier interface {
	// verify hashed data with this signing key
	// return nil on valid signature otherwise error
	VerifyHash(h, sig []byte) error
	// verify an unhashed piece of data by hashing it and calling VerifyHash
	Verify(data, sig []byte) error
}