com.lowagie.text.pdf.crypto

Class IVGenerator

java.lang.Object

com.lowagie.text.pdf.crypto.IVGenerator

public final class IVGenerator
extends java.lang.Object

An initialization vector generator for a CBC block encryption. It's a random generator based on ARCFOUR.

Author:

Paulo Soares (psoares@consiste.pt)

Field Summary

Fields

Modifier and Type	Field and Description
private static ARCFOUREncryption	arcfour

Constructor Summary

Constructors

Modifier	Constructor and Description
private	IVGenerator() Creates a new instance of IVGenerator

Method Summary

Modifier and Type	Method and Description
static byte[]	getIV() Gets a 16 byte random initialization vector.
static byte[]	getIV(int len) Gets a random initialization vector.

Methods inherited from class java.lang.Object

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

Field Detail

arcfour

private static ARCFOUREncryption arcfour

Constructor Detail

IVGenerator

private IVGenerator()

Creates a new instance of IVGenerator

Method Detail

getIV

public static byte[] getIV()

Gets a 16 byte random initialization vector.

Returns:

a 16 byte random initialization vector

getIV

public static byte[] getIV(int len)

Gets a random initialization vector.

Parameters:

len - the length of the initialization vector

Returns:

a random initialization vector