Java tutorial
//package com.java2s; /** * Copyright (C) 2011 Whisper Systems * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ public class Main { private static byte[] combineSecrets(byte[] encryptionSecret, byte[] macSecret) { byte[] combinedSecret = new byte[encryptionSecret.length + macSecret.length]; System.arraycopy(encryptionSecret, 0, combinedSecret, 0, encryptionSecret.length); System.arraycopy(macSecret, 0, combinedSecret, encryptionSecret.length, macSecret.length); return combinedSecret; } }