sm4

Documentation

Index

• Constants
• func AnyOverlap(x, y []byte) bool
• func InexactOverlap(x, y []byte) bool
• func NewCipher(key []byte) (cipher.Block, error)

Constants

const BlockSize = 16

BlockSize the sm4 block size in bytes.

Functions

func AnyOverlap

func AnyOverlap(x, y []byte) bool

AnyOverlap reports whether x and y share memory at any (not necessarily corresponding) index. The memory beyond the slice length is ignored.

func InexactOverlap

func InexactOverlap(x, y []byte) bool

InexactOverlap reports whether x and y share memory at any non-corresponding index. The memory beyond the slice length is ignored. Note that x and y can have different lengths and still not have any inexact overlap.

InexactOverlap can be used to implement the requirements of the crypto/cipher AEAD, Block, BlockMode and Stream interfaces.

func NewCipher

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

NewCipher creates and returns a new cipher.Block. The key argument should be the SM4 key,