Package org.verapdf.tools

Class RC4Encryption

java.lang.Object

org.verapdf.tools.RC4Encryption

public class RC4Encryption
extends Object

Implements RC4 encryption algorithm.

Author:

Sergey Shemyakov

Constructor Summary

Constructors

Constructor	Description
RC4Encryption(byte[] key)	Constructor from encryption key.

Method Summary

Modifier and Type	Method	Description
byte[]	process(byte[] data)	Encrypts or decrypts passed data with use of current inner state of encryptor.
byte[]	process(byte[] data, int offset, int size)	Encrypts or decrypts passed data with use of current inner state of encryptor.
void	reset()	Resets inner state of encryptor to default.

Methods inherited from class java.lang.Object

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

Constructor Detail

RC4Encryption

public RC4Encryption(byte[] key)

Constructor from encryption key.

Parameters:

key - is encryption key.

Method Detail

process

public byte[] process(byte[] data)

Encrypts or decrypts passed data with use of current inner state of encryptor.

Parameters:

data - is data to process.

Returns:

processed data.

process

public byte[] process(byte[] data,
                      int offset,
                      int size)

Encrypts or decrypts passed data with use of current inner state of encryptor.

Parameters:

data - is data to process.

offset - is offset of beginning of data to process.

size - is amount of bytes to process.

Returns:

processed data.

reset

public void reset()

Resets inner state of encryptor to default.