ch.ethz.ssh2.crypto.cipher
Class DESede

java.lang.Object
  ch.ethz.ssh2.crypto.cipher.DES
      ch.ethz.ssh2.crypto.cipher.DESede

All Implemented Interfaces:

BlockCipher

public class DESede
extends DES

DESede.

Version:

2.50, 03/15/10

Author:

See comments in the source file

Constructor Summary

DESede()
standard constructor.

Method Summary

String	getAlgorithmName()
int	getBlockSize()
void	init(boolean encrypting, byte[] key) initialise a DES cipher.
void	reset()
void	transformBlock(byte[] in, int inOff, byte[] out, int outOff)

Methods inherited from class ch.ethz.ssh2.crypto.cipher.DES

desFunc, generateWorkingKey

Methods inherited from class java.lang.Object

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

Constructor Detail

DESede

public DESede()

standard constructor.

Method Detail

init

public void init(boolean encrypting,
                 byte[] key)

initialise a DES cipher.

Specified by:

init in interface BlockCipher

Overrides:

init in class DES

Parameters:

encrypting - whether or not we are for encryption.

key - the parameters required to set up the cipher.

Throws:

IllegalArgumentException - if the params argument is inappropriate.

getAlgorithmName

public String getAlgorithmName()

Overrides:

getAlgorithmName in class DES

getBlockSize

public int getBlockSize()

Specified by:

getBlockSize in interface BlockCipher

Overrides:

getBlockSize in class DES

transformBlock

public void transformBlock(byte[] in,
                           int inOff,
                           byte[] out,
                           int outOff)

Specified by:

transformBlock in interface BlockCipher

Overrides:

transformBlock in class DES

reset

public void reset()

Overrides:

reset in class DES