com.trilead.ssh2.crypto.cipher
Class BlowFish

java.lang.Object
  com.trilead.ssh2.crypto.cipher.BlowFish

All Implemented Interfaces:

BlockCipher

public class BlowFish
extends java.lang.Object
implements BlockCipher

A class that provides Blowfish key encryption operations, such as encoding data and generating keys. All the algorithms herein are from Applied Cryptography and implement a simplified cryptography interface.

Version:

$Id: BlowFish.java,v 1.1 2007/10/15 12:49:55 cplattne Exp $

Author:

See comments in the source file

Constructor Summary

BlowFish()

Method Summary

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

Methods inherited from class java.lang.Object

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

Constructor Detail

BlowFish

public BlowFish()

Method Detail

init

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

initialise a Blowfish cipher.

Specified by:

init in interface BlockCipher

Parameters:

encrypting - whether or not we are for encryption.

key - the key required to set up the cipher.

Throws:

java.lang.IllegalArgumentException - if the params argument is inappropriate.

getAlgorithmName

public java.lang.String getAlgorithmName()

transformBlock

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

Specified by:

transformBlock in interface BlockCipher

reset

public void reset()

getBlockSize

public int getBlockSize()

Specified by:

getBlockSize in interface BlockCipher