javax.crypto.spec
Class IvParameterSpec

java.lang.Object
  |
  +--javax.crypto.spec.IvParameterSpec

public class IvParameterSpec

extends java.lang.Object

implements AlgorithmParameterSpec

Initialization vector (IV) specification.

Attention: This is not a SUN implementation!

This class has been developed by IAIK according to the documentation publically available.
For SUNīs documentation of this class see http://java.sun.com/security/JCE1.2/spec/apidoc/index.html

This class represents an initialization vector (IV) for being used by any algorithm that needs an Iv, e.g. when running a DES, TripleDES, IDEA,... cipher in CBC, PCBC, CFB or OFB mode.

See Also:

AlgorithmParameterSpec

Constructor Summary

IvParameterSpec(byte[] iv)
Creates a IvParameterSpec from the given byte array.

IvParameterSpec(byte[] iv, int offset, int len)
Creates an IvParameterSpec by using the given number of bytes of the supplied byte array as IV, beginning at the given offset.

Method Summary

byte[]

getIV() Returns a copy of the initialization vector (IV) as byte array representation.

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 IvParameterSpec from the given byte array.

Parameters:

iv - the byte array holding the IV

IvParameterSpec

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

Creates an IvParameterSpec by using the given number of bytes of the supplied byte array as IV, beginning at the given offset.

Parameters:

iv - the byte array holding the IV

offset - the offset indicating the start position within the input IV byte array

len - the number bytes to be taken for the IV

Method Detail

getIV

public byte[] getIV()

Returns a copy of the initialization vector (IV) as byte array representation.

Returns:

a copy of the initialization vector (IV) as byte array representation