Package des

From Get docs

Package des


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.


Package files

block.go cipher.go const.go


The DES block size in bytes.

const BlockSize = 8

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.



// 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 {

// 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

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