crypto

type Crypto interface {
	// Encrypt will encrypt msg and aad using a matching AEAD primitive in kh key handle
	// returns:
	// 		cipherText in []byte
	//		nonce in []byte
	//		error in case of errors during encryption
	Encrypt(msg, aad []byte, kh interface{}) ([]byte, []byte, error)
	// Decrypt will decrypt cipher with aad and given nonce using a matching AEAD primitive in kh key handle
	// returns:
	//		plainText in []byte
	//		error in case of errors
	Decrypt(cipher, aad, nonce []byte, kh interface{}) ([]byte, error)
	// Sign will sign msg using a matching signature primitive in kh key handle
	// returns:
	// 		signature in []byte
	//		error in case of errors
	Sign(msg []byte, kh interface{}) ([]byte, error)
	// Verify will verify a signature for the given msg using a matching signature primitive in kh key handle
	// returns:
	// 		error in case of errors or nil if signature verification was successful
	Verify(signature, msg []byte, kh interface{}) error
	// ComputeMAC computes message authentication code (MAC) for code data
	// using a matching MAC primitive in kh key handle
	ComputeMAC(data []byte, kh interface{}) ([]byte, error)
	// VerifyMAC determines if mac is a correct authentication code (MAC) for data
	// using a matching MAC primitive in kh key handle and returns nil if so, otherwise it returns an error.
	VerifyMAC(mac, data []byte, kh interface{}) error
}