cipher

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

type AEADType uint8

type BlockCipher interface {
	// Encrypt method adds the nonce in the dst, then encryptes the src.
	Encrypt(plaintext []byte) ([]byte, error)

	// EncryptWithNonce encrypts the src with the given nonce.
	// This method is not supported by stateful BlockCipher.
	EncryptWithNonce(plaintext, nonce []byte) ([]byte, error)

	// Decrypt method removes the nonce in the src, then decryptes the src.
	Decrypt(ciphertext []byte) ([]byte, error)

	// DecryptWithNonce decrypts the src with the given nonce.
	// This method is not supported by stateful BlockCipher.
	DecryptWithNonce(ciphertext, nonce []byte) ([]byte, error)

	// NonceSize returns the size of the nonce that must be passed to Seal
	// and Open.
	NonceSize() int

	// Overhead returns the maximum difference between the lengths of a
	// plaintext and its ciphertext.
	Overhead() int

	// Clone method creates a deep copy of block cipher itself.
	// Panic if this operation fails.
	Clone() BlockCipher

	// SetImplicitNonceMode enables or disables implicit nonce mode.
	// Under implicit nonce mode, the nonce is set exactly once on the first
	// Encrypt() or Decrypt() call. After that, all Encrypt() or Decrypt()
	// calls will not look up nonce in the data. Each Encrypt() or Decrypt()
	// will cause the nonce value to be increased by 1.
	//
	// Implicit nonce mode is disabled by default.
	//
	// Disabling implicit nonce mode removes the implicit nonce (state)
	// from the block cipher.
	SetImplicitNonceMode(enable bool)

	// IsStateless returns true if the BlockCipher can do arbitrary Encrypt()
	// and Decrypt() in any sequence.
	IsStateless() bool

	// BlockContext returns a copy of BlockContext.
	BlockContext() BlockContext

	// SetBlockContext sets the BlockContext.
	SetBlockContext(bc BlockContext)
}

type BlockContext struct {
	UserName string
}