javax.crypto.spec

Class IvParameterSpec

java.lang.Object

javax.crypto.spec.IvParameterSpec

All Implemented Interfaces:

AlgorithmParameterSpec

public class IvParameterSpec
extends Object
implements AlgorithmParameterSpec

The algorithm parameter specification for an initialization vector.

Constructor Summary

Constructors

Constructor and Description
IvParameterSpec(byte[] iv) Creates a new IvParameterSpec instance with the bytes from the specified buffer iv used as initialization vector.
IvParameterSpec(byte[] iv, int offset, int byteCount) Creates a new IvParameterSpec instance with byteCount bytes from the specified buffer iv starting at offset.

Method Summary

Modifier and Type	Method and Description
byte[]	getIV() Returns a copy of the initialization vector data.

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)

Creates a new IvParameterSpec instance with the bytes from the specified buffer iv used as initialization vector.

Parameters:

iv - the buffer used as initialization vector.

Throws:

NullPointerException - if the specified buffer is null.

IvParameterSpec

public IvParameterSpec(byte[] iv,
                       int offset,
                       int byteCount)

Creates a new IvParameterSpec instance with byteCount bytes from the specified buffer iv starting at offset.

Throws:

IllegalArgumentException - if the specified buffer is null or offset and byteCount do not specify a valid chunk in the specified buffer.

ArrayIndexOutOfBoundsException - if offset or byteCount are negative.

Method Detail

getIV

public byte[] getIV()

Returns a copy of the initialization vector data.

Returns:

a copy of the initialization vector data.