Here you can find the source of clearBit(byte b, int i)
public static byte clearBit(byte b, int i)
//package com.java2s; /*//from ww w .j a v a2s .c o m * UniCrypt * * UniCrypt(tm) : Cryptographical framework allowing the implementation of cryptographic protocols e.g. e-voting * Copyright (C) 2014 Bern University of Applied Sciences (BFH), Research Institute for * Security in the Information Society (RISIS), E-Voting Group (EVG) * Quellgasse 21, CH-2501 Biel, Switzerland * * Licensed under Dual License consisting of: * 1. GNU Affero General Public License (AGPL) v3 * and * 2. Commercial license * * * 1. This program is free software: you can redistribute it and/or modify * it under the terms of the GNU Affero 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 Affero General Public License for more details. * * You should have received a copy of the GNU Affero General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. * * * 2. Licensees holding valid commercial licenses for UniCrypt may use this file in * accordance with the commercial license agreement provided with the * Software or, alternatively, in accordance with the terms contained in * a written agreement between you and Bern University of Applied Sciences (BFH), Research Institute for * Security in the Information Society (RISIS), E-Voting Group (EVG) * Quellgasse 21, CH-2501 Biel, Switzerland. * * * For further information contact <e-mail: unicrypt@bfh.ch> * * * Redistributions of files must retain the above copyright notice. */ public class Main { public static byte clearBit(byte b, int i) { return (byte) logicalAND(b, logicalNOT(bitMask(i))); } public static byte logicalAND(byte b1, byte b2) { return (byte) (b1 & b2); } public static byte logicalNOT(byte b) { return (byte) ~b; } public static byte bitMask(int i) { return (byte) (1 << i); } }