velosurf.util
Class DESCryptograph

java.lang.Object
  velosurf.util.DESCryptograph

All Implemented Interfaces:

Cryptograph

public class DESCryptograph
extends java.lang.Object
implements Cryptograph

Implemenation of the cryptograph for the DES algorithm. Inspired from some code found at http://javaalmanac.com

Author:

Claude Brisson

Field Summary

(package private) javax.crypto.Cipher	dcipher decryption cypher
(package private) javax.crypto.Cipher	ecipher encryption cypher

Constructor Summary

DESCryptograph()
Constructor.

Method Summary

java.lang.String	decrypt(java.lang.String str) Decrypt a string.
java.lang.String	encrypt(java.lang.String str) encrypt a string.
void	init(java.lang.String random) initialization.
static void	main(java.lang.String[] args) test method

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

ecipher

javax.crypto.Cipher ecipher

encryption cypher

dcipher

javax.crypto.Cipher dcipher

decryption cypher

Constructor Detail

DESCryptograph

public DESCryptograph()

Constructor.

Method Detail

init

public void init(java.lang.String random)

initialization.

Specified by:

init in interface Cryptograph

Parameters:

random - random string

encrypt

public java.lang.String encrypt(java.lang.String str)

encrypt a string.

Specified by:

encrypt in interface Cryptograph

Parameters:

str - string to encrypt

Returns:

encrypted string

decrypt

public java.lang.String decrypt(java.lang.String str)

Decrypt a string.

Specified by:

decrypt in interface Cryptograph

Parameters:

str - string to decrypt

Returns:

decrypted string

main

public static void main(java.lang.String[] args)

test method

Parameters:

args - not used