Package com.sun.faces.util

Class ByteArrayGuardAESCTR

java.lang.Object

com.sun.faces.util.ByteArrayGuardAESCTR

public final class ByteArrayGuardAESCTR
extends Object

This utility class is to provide both encryption and decryption Ciphers to ResponseStateManager implementations wishing to provide encryption support.

The algorithm used to encrypt byte array is AES with CBC.

Original author Inderjeet Singh, J2EE Blue Prints Team. Modified to suit Faces needs.

Constructor Summary

Constructors

Constructor	Description
ByteArrayGuardAESCTR()

Method Summary

Modifier and Type	Method	Description
String	decrypt(String value)
String	encrypt(String value)	This method: Encrypts bytes using a cipher.

Methods inherited from class java.lang.Object

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

Constructor Details

ByteArrayGuardAESCTR

public ByteArrayGuardAESCTR()

Method Details

encrypt

public String encrypt(String value)

This method: Encrypts bytes using a cipher. Generates MAC for intialization vector of the cipher Generates MAC for encrypted data Returns a byte array consisting of the following concatenated together: |MAC for cnrypted Data | MAC for Init Vector | Encrypted Data |

Parameters:

value - The value to be encrypted.

Returns:

the encrypted value.

decrypt

public String decrypt(String value)
               throws InvalidKeyException

Throws:

InvalidKeyException