com.lowagie.text.pdf.crypto

Class IVGenerator

public final class IVGenerator extends 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
static ARCFOUREncryption	arcfour

Constructor Summary
	IVGenerator() Creates a new instance of IVGenerator

Method Summary
static byte[]	getIV() Gets a 16 byte random initialization vector.
static byte[]	getIV(int len) Gets a random initialization vector.

Field Detail

private static ARCFOUREncryption arcfour

private IVGenerator()

Creates a new instance of IVGenerator

public static byte[] getIV()

Gets a 16 byte random initialization vector.

Returns: a 16 byte random initialization vector

public static byte[] getIV(int len)

Gets a random initialization vector.

Parameters: len the length of the initialization vector

Returns: a random initialization vector