com.compoze.util
Class IdeaCipher

java.lang.Object
  com.compoze.util.IdeaCipher

public class IdeaCipher
extends java.lang.Object

Field Summary

int	blockSize
int	keySize

Constructor Summary

IdeaCipher()
Constructor.

IdeaCipher(byte[] key)

IdeaCipher(int keySize, int blockSize)

IdeaCipher(java.lang.String keyStr)

Method Summary

int	blockSize()
byte[]	decrypt(byte[] cipherText) Encrypts some cleartext to a new byte array with ciphertext.
void	decrypt(byte[] cipherText, byte[] clearText)
void	decrypt(byte[] cipherText, int cipherOff, byte[] clearText, int clearOff)
byte[]	encrypt(byte[] clearText) Encrypts some cleartext to a new byte array with ciphertext.
void	encrypt(byte[] clearText, byte[] cipherText)
void	encrypt(byte[] clearText, int clearOff, byte[] cipherText, int cipherOff)
static byte[]	getBytesFromLong(long lLong) Get an array of bytes from a long.
static long	getLongFromBytes(byte[] byteArray)
int	keySize()
static void	main(java.lang.String[] args)
byte[]	makeKey(java.lang.String keyStr)
void	setKey(byte[] key)
void	setKey(java.lang.String keyStr)
static void	spreadShortsToBytes(int[] inShorts, int inOff, byte[] outBytes, int outOff, int shortLen)
static void	squashBytesToShorts(byte[] inBytes, int inOff, int[] outShorts, int outOff, int shortLen)

Methods inherited from class java.lang.Object

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

Field Detail

blockSize

public int blockSize

keySize

public int keySize

Constructor Detail

IdeaCipher

public IdeaCipher()

Constructor.

IdeaCipher

public IdeaCipher(int keySize,
                  int blockSize)

IdeaCipher

public IdeaCipher(java.lang.String keyStr)

IdeaCipher

public IdeaCipher(byte[] key)

Method Detail

blockSize

public int blockSize()

encrypt

public void encrypt(byte[] clearText,
                    byte[] cipherText)

decrypt

public void decrypt(byte[] cipherText,
                    byte[] clearText)

setKey

public void setKey(byte[] key)

encrypt

public byte[] encrypt(byte[] clearText)
               throws java.io.IOException

Encrypts some cleartext to a new byte array with ciphertext.

Throws:

java.io.IOException

decrypt

public byte[] decrypt(byte[] cipherText)
               throws java.io.IOException

Encrypts some cleartext to a new byte array with ciphertext.

Throws:

java.io.IOException

encrypt

public void encrypt(byte[] clearText,
                    int clearOff,
                    byte[] cipherText,
                    int cipherOff)

decrypt

public void decrypt(byte[] cipherText,
                    int cipherOff,
                    byte[] clearText,
                    int clearOff)

keySize

public int keySize()

setKey

public void setKey(java.lang.String keyStr)

makeKey

public byte[] makeKey(java.lang.String keyStr)

squashBytesToShorts

public static void squashBytesToShorts(byte[] inBytes,
                                       int inOff,
                                       int[] outShorts,
                                       int outOff,
                                       int shortLen)

spreadShortsToBytes

public static void spreadShortsToBytes(int[] inShorts,
                                       int inOff,
                                       byte[] outBytes,
                                       int outOff,
                                       int shortLen)

getLongFromBytes

public static long getLongFromBytes(byte[] byteArray)

getBytesFromLong

public static byte[] getBytesFromLong(long lLong)

Get an array of bytes from a long.

Parameters:

lLong - the long

Returns:

the array of bytes

main

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