rsa

type Cipher interface {
	Encrypt(plainText []byte) ([]byte, error)
	Decrypt(cipherText []byte) ([]byte, error)
	Sign(src []byte, hash crypto.Hash) ([]byte, error)
	Verify(src []byte, sign []byte, hash crypto.Hash) error
}

type CipherMode interface {
	Encrypt(plainText []byte, puk *rsa.PublicKey) ([]byte, error)
	Decrypt(cipherText []byte, prk *rsa.PrivateKey) ([]byte, error)
}

type Key interface {
	PublicKey() *rsa.PublicKey
	PrivateKey() *rsa.PrivateKey
	Modulus() int
}

type Padding interface {
	Padding(src []byte) [][]byte
}

type SignMode interface {
	Sign(src []byte, hash crypto.Hash, prk *rsa.PrivateKey) ([]byte, error)
	Verify(src []byte, sign []byte, hash crypto.Hash, puk *rsa.PublicKey) error
}