rc5

Documentation

Index

• Constants
• func NewCipher(key []byte, wordSize, r uint) (cipher.Block, error)
• func NewCipher16(key []byte, r uint) (cipher.Block, error)
• func NewCipher32(key []byte, r uint) (cipher.Block, error)
• func NewCipher64(key []byte, r uint) (cipher.Block, error)
• type KeySizeError
  • func (k KeySizeError) Error() string

Constants

const (
	W16  = 16      // word size in bits
	WW16 = W16 / 8 // word size in bytes
	B16  = 32      // block size in bits
	BB16 = B16 / 8 // block size in bytes

	// BlockSize the RC5/16 block size in bytes.
	BlockSize16 = BB16

	P16 = 0xb7e1
	Q16 = 0x9e37
)

const (
	// BlockSize the RC5/32 block size in bytes.
	BlockSize32 = 8
	P32         = 0xB7E15163
	Q32         = 0x9E3779B9
)

const (
	// BlockSize the RC5/64 block size in bytes.
	BlockSize64 = 16
	P64         = 0xB7E151628AED2A6B
	Q64         = 0x9E3779B97F4A7C15
)

Functions

func NewCipher

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

NewCipher creates and returns a new cipher.Block. The key argument should be the RC5 key, the wordSize arguement should be word size in bits, the r argument should be number of rounds.

func NewCipher16

func NewCipher16(key []byte, r uint) (cipher.Block, error)

NewCipher16 creates and returns a new cipher.Block with 16 bits word size. The key argument should be the RC5 key, the r argument should be number of rounds.

func NewCipher32

func NewCipher32(key []byte, r uint) (cipher.Block, error)

NewCipher32 creates and returns a new cipher.Block with 32 bits word size. The key argument should be the RC5 key, the r argument should be number of rounds.

func NewCipher64

func NewCipher64(key []byte, r uint) (cipher.Block, error)

NewCipher64 creates and returns a new cipher.Block with 64 bits word size. The key argument should be the RC5 key, the r argument should be number of rounds.

Types

type KeySizeError

type KeySizeError int

KeySizeError

func (KeySizeError) Error

func (k KeySizeError) Error() string