javax.crypto.spec

Class IvParameterSpec

java.lang.Object

javax.crypto.spec.IvParameterSpec

All Implemented Interfaces:

java.security.spec.AlgorithmParameterSpec

public class IvParameterSpec
extends java.lang.Object
implements java.security.spec.AlgorithmParameterSpec

A wrapper for an initialization vector. An initialization vector is necessary for any cipher in any feedback mode, e.g. CBC.

Constructor Summary

Constructors

Constructor and Description
IvParameterSpec(byte[] iv) Create a new initialization vector spec from an entire byte array.
IvParameterSpec(byte[] iv, int off, int len) Create a new initialization vector spec from part of a byte array.

Method Summary

Methods

Modifier and Type	Method and Description
byte[]	getIV() Returns the IV.

Methods inherited from class java.lang.Object

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

Constructor Detail

IvParameterSpec

public IvParameterSpec(byte[] iv)

Create a new initialization vector spec from an entire byte array.

Parameters:

iv - The IV bytes.

IvParameterSpec

public IvParameterSpec(byte[] iv,
               int off,
               int len)

Create a new initialization vector spec from part of a byte array.

Parameters:

iv - The IV bytes.

off - The offset into the IV bytes.

len - The number of IV bytes.

Method Detail

getIV

public byte[] getIV()

Returns the IV. This method does not copy the byte array.

Returns:

The IV.