1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
|
-----------------------------------------------------------------------------
-- |
-- Module : Codec.Encryption.DES
-- Copyright : (c) Dominic Steinitz 2003
-- License : BSD-style (see the file ReadMe.tex)
--
-- Maintainer : dominic.steinitz@blueyonder.co.uk
-- Stability : experimental
-- Portability : portable
--
-- Takes the DES module supplied by Ian Lynagh and wraps it so it can
-- used with the standard modes.
--
-- See <http://web.comlab.ox.ac.uk/oucl/work/ian.lynagh/>.
--
-----------------------------------------------------------------------------
module Codec.Encryption.DES (
-- * Function Types
encrypt, decrypt) where
import Codec.Encryption.DESAux
import Data.Word
-- | Basic DES encryption which takes a key and a block of plaintext
-- and returns the encrypted block of ciphertext according to the standard.
encrypt :: Word64 -> Word64 -> Word64
encrypt = flip des_enc
-- | Basic DES decryption which takes a key and a block of ciphertext and
-- returns the decrypted block of plaintext according to the standard.
decrypt :: Word64 -> Word64 -> Word64
decrypt = flip des_dec
|
