Here you can find the source of randomBytes(int length)
static byte[] randomBytes(int length)
//package com.java2s; /*/* ww w. j a v a 2s. co m*/ * Copyright 2015 Google Inc. All Rights Reserved. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ import java.util.Random; public class Main { static byte[] randomBytes(int length) { Random rnd = new Random(); byte[] result = new byte[length]; rnd.nextBytes(result); return result; } }