net.sourceforge.jtds.util

Class DESEngine

java.lang.Object

net.sourceforge.jtds.util.DESEngine

public class DESEngine
extends java.lang.Object

a class that provides a basic DES engine. Modified by Matt Brinkley (mdb) ... mainly just removed depends on external classes.

Version:

$Id: DESEngine.java,v 1.3.6.1 2009-08-04 10:33:54 ickzon Exp $

Author:

Matt Brinkley

Field Summary

Fields

Modifier and Type	Field and Description
protected static int	BLOCK_SIZE
private javax.crypto.Cipher	cf

Constructor Summary

Constructors

Constructor and Description
DESEngine() standard constructor.
DESEngine(boolean encrypting, byte[] key) mdb: convenient constructor

Method Summary

Methods

Modifier and Type	Method and Description
java.lang.String	getAlgorithmName()
int	getBlockSize()
void	init(boolean encrypting, byte[] key) initialise a DES cipher.
int	processBlock(byte[] in, int inOff, byte[] out, int outOff)
void	reset()

Methods inherited from class java.lang.Object

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

Field Detail

BLOCK_SIZE

protected static final int BLOCK_SIZE

See Also:

Constant Field Values

cf

private javax.crypto.Cipher cf

Constructor Detail

DESEngine

public DESEngine()

standard constructor.

DESEngine

public DESEngine(boolean encrypting,
         byte[] key)

mdb: convenient constructor

Method Detail

init

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

initialise a DES cipher.

Parameters:

encrypting - whether or not we are for encryption.

key - the parameters required to set up the cipher.

Throws:

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

getAlgorithmName

public java.lang.String getAlgorithmName()

getBlockSize

public int getBlockSize()

processBlock

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

reset

public void reset()