pulpcore.util.crypt
Class ARC4

java.lang.Object
  pulpcore.util.crypt.ARC4

public class ARC4
extends Object

An unofficial implementation of the ARC4 cipher algorithm.

Constructor Summary

ARC4()
Constructs a new ARC4 object with a randomly generated encryption key.

ARC4(byte[] key)
Constructs a new ARC4 object with the specified encryption key.

Method Summary

void	crypt(byte[] data) Crypts the data.
void	crypt(byte[] input, byte[] output) Crypts the data from the input array to the output array.
void	reset() Resets the cipher to start encrypting a new stream of data.

Methods inherited from class java.lang.Object

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

Constructor Detail

ARC4

public ARC4()

Constructs a new ARC4 object with a randomly generated encryption key.

ARC4

public ARC4(byte[] key)

Constructs a new ARC4 object with the specified encryption key. The key can be at most 256 bytes in length.

Parameters:

key - the encryption key.

Method Detail

reset

public void reset()

Resets the cipher to start encrypting a new stream of data.

crypt

public void crypt(byte[] data)

Crypts the data.

Parameters:

data - The data to crpyt.

crypt

public void crypt(byte[] input,
                  byte[] output)

Crypts the data from the input array to the output array.

Parameters:

input - The source data.

output - The array to store the crpyted data, which must be as long as the input data.