Package des

import "crypto/des"
Overview
Index
Examples
Documentation

Overview

Package des implements the Data Encryption Standard (DES) and the Triple Data Encryption Algorithm (TDEA) as defined in U.S. Federal Information Processing Standards Publication 46-3.

DES is cryptographically broken and should not be used for secure applications.

Index

Constants
func NewCipher(key []byte) (cipher.Block, error)
func NewTripleDESCipher(key []byte) (cipher.Block, error)
type KeySizeError
func (k KeySizeError) Error() string

Examples

NewTripleDESCipher

Documentation

Constants

const BlockSize = 8

The DES block size in bytes.

func NewCipher

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

NewCipher creates and returns a new cipher.Block.

func NewTripleDESCipher

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

NewTripleDESCipher creates and returns a new cipher.Block.

Example

Code:

// NewTripleDESCipher can also be used when EDE2 is required by
// duplicating the first 8 bytes of the 16-byte key.
ede2Key := []byte("example key 1234")

var tripleDESKey []byte
tripleDESKey = append(tripleDESKey, ede2Key[:16]...)
tripleDESKey = append(tripleDESKey, ede2Key[:8]...)

_, err := des.NewTripleDESCipher(tripleDESKey)
if err != nil {
    panic(err)
}

// See crypto/cipher for how to use a cipher.Block for encryption and
// decryption.

type KeySizeError

type KeySizeError int

func KeySizeError.Error

func (k KeySizeError) Error() string