Java IV Generate generateIV()

Description

Randomly generates an initialization vector (IV) which can be used as parameter for symmetric encryption.

License

Open Source License

Return

Returns a randomly generated IV.

Declaration

public static byte[] generateIV() 

Method Source Code

//package com.java2s;
//License from project: Open Source License 

import java.security.SecureRandom;

public class Main {
    private static final int IV_LENGTH = 16;

    /**/*from   w  ww . j ava 2  s.c om*/
     * Randomly generates an initialization vector (IV) which can be used as parameter for symmetric
     * encryption.
     * 
     * @return Returns a randomly generated IV.
     */
    public static byte[] generateIV() {
        SecureRandom random = new SecureRandom();
        byte[] iv = new byte[IV_LENGTH];
        do {
            random.nextBytes(iv);
        } while (iv[0] == 0);
        return iv;
    }
}

Related

1. generateIV()
2. generateIV()
3. generateIV()
4. generateIV()
5. generateIV(byte[] iv)