sm4

Documentation

Index

• Constants
• func NewCipher(key []byte) (cipher.Block, error)
• func T(X uint32) uint32
• func T_non_lin_sub(X uint32) uint32
• func T_slow(X uint32) uint32
• type KeySizeError
  • func (k KeySizeError) Error() string

Constants

const BlockSize = 16

const KeySchedule = 32

Functions

func NewCipher

func NewCipher(key []byte) (cipher.Block, error)

NewCipher creates and returns a new cipher.Block. key is 16 bytes, so 32 bytes is used half bytes. so the cipher use 16 bytes key. key bytes and src bytes is BigEndian type.

func T

func T(X uint32) uint32

func T_non_lin_sub

func T_non_lin_sub(X uint32) uint32

func T_slow

func T_slow(X uint32) uint32

Types

type KeySizeError

type KeySizeError int

func (KeySizeError) Error

func (k KeySizeError) Error() string