ro.raducora.utils.encryption.key
Class DefaultEncryptionKey

java.lang.Object
  |
  +--ro.raducora.utils.encryption.key.StreamEncryptionKey
        |
        +--ro.raducora.utils.encryption.key.DefaultEncryptionKey

All Implemented Interfaces:

java.lang.Cloneable

public class DefaultEncryptionKey

extends StreamEncryptionKey

Author:

Radu Coravu

Constructor Summary

DefaultEncryptionKey()
Sets the internal key with help from current system time

DefaultEncryptionKey(long longkey)
Constructor that takes a "long" as argument

DefaultEncryptionKey(java.lang.String strkey)
Constructor that takes a String as argument

Method Summary

byte[]	decrypt(byte[] toDecrypt, int offset, int length) Takes an array of bytes and decrypts it
byte[]	encrypt(byte[] toEncrypt, int offset, int length) Takes an array of bytes and encodes it with key
boolean	isExplicitlySet()
void	reset() Set Key to initial state.
void	setKey(java.lang.String key) Set Key

Methods inherited from class ro.raducora.utils.encryption.key.StreamEncryptionKey

clone

Methods inherited from class java.lang.Object

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

Constructor Detail

DefaultEncryptionKey

public DefaultEncryptionKey()

Sets the internal key with help from current system time

DefaultEncryptionKey

public DefaultEncryptionKey(long longkey)

Constructor that takes a "long" as argument

DefaultEncryptionKey

public DefaultEncryptionKey(java.lang.String strkey)

Constructor that takes a String as argument

Method Detail

isExplicitlySet

public boolean isExplicitlySet()

Specified by:

isExplicitlySet in class StreamEncryptionKey

Returns:

true if key is explicitly set

reset

public void reset()

Set Key to initial state.

Specified by:

reset in class StreamEncryptionKey

setKey

public void setKey(java.lang.String key)

Set Key

Specified by:

setKey in class StreamEncryptionKey

Parameters:

key - the key to set.

encrypt

public byte[] encrypt(byte[] toEncrypt,
                      int offset,
                      int length)

Takes an array of bytes and encodes it with key

Specified by:

encrypt in class StreamEncryptionKey

Parameters:

toEncrypt - byte array to encrypt

offset - where to begin

length - where to end

Returns:

the encrypted byte[]

decrypt

public byte[] decrypt(byte[] toDecrypt,
                      int offset,
                      int length)

Takes an array of bytes and decrypts it

Specified by:

decrypt in class StreamEncryptionKey

Parameters:

toDecrypt - byte array to decrypt

offset - where to begin

length - where to end

Returns:

the decrypted byte[]