| /* |
| * Copyright (c) 2005, 2007, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code 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 |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* |
| * @test |
| * @bug 6340919 |
| * @summary Incorrect list of keys reported as weak by DESKeySpec.isWeak() |
| * @author Brad R. Wetmore |
| */ |
| import javax.crypto.spec.DESKeySpec; |
| |
| public class CheckWeakKeys { |
| |
| /** |
| * Weak/semi-weak keys copied from FIPS 74. |
| * |
| * "...The first 6 keys have duals different than themselves, hence |
| * each is both a key and a dual giving 12 keys with duals. The last |
| * four keys equal their duals, and are called self-dual keys..." |
| * |
| * 1. E001E001F101F101 01E001E001F101F1 |
| * 2. FE1FFE1FFEOEFEOE 1FFE1FFEOEFEOEFE |
| * 3. E01FE01FF10EF10E 1FE01FEOOEF10EF1 |
| * 4. 01FE01FE01FE01FE FE01FE01FE01FE01 |
| * 5. 011F011F010E010E 1F011F010E010E01 |
| * 6. E0FEE0FEF1FEF1FE FEE0FEE0FEF1FEF1 |
| * 7. 0101010101010101 0101010101010101 |
| * 8. FEFEFEFEFEFEFEFE FEFEFEFEFEFEFEFE |
| * 9. E0E0E0E0F1F1F1F1 E0E0E0E0F1F1F1F1 |
| * 10. 1F1F1F1F0E0E0E0E 1F1F1F1F0E0E0E0E |
| */ |
| static private byte [][] weakKeys = { |
| { (byte)0xE0, (byte)0x01, (byte)0xE0, (byte)0x01, |
| (byte)0xF1, (byte)0x01, (byte)0xF1, (byte)0x01 }, |
| |
| { (byte)0x01, (byte)0xE0, (byte)0x01, (byte)0xE0, |
| (byte)0x01, (byte)0xF1, (byte)0x01, (byte)0xF1 }, |
| |
| { (byte)0xFE, (byte)0x1F, (byte)0xFE, (byte)0x1F, |
| (byte)0xFE, (byte)0x0E, (byte)0xFE, (byte)0x0E }, |
| |
| { (byte)0x1F, (byte)0xFE, (byte)0x1F, (byte)0xFE, |
| (byte)0x0E, (byte)0xFE, (byte)0x0E, (byte)0xFE }, |
| |
| { (byte)0xE0, (byte)0x1F, (byte)0xE0, (byte)0x1F, |
| (byte)0xF1, (byte)0x0E, (byte)0xF1, (byte)0x0E }, |
| |
| { (byte)0x1F, (byte)0xE0, (byte)0x1F, (byte)0xE0, |
| (byte)0x0E, (byte)0xF1, (byte)0x0E, (byte)0xF1 }, |
| |
| { (byte)0x01, (byte)0xFE, (byte)0x01, (byte)0xFE, |
| (byte)0x01, (byte)0xFE, (byte)0x01, (byte)0xFE }, |
| |
| { (byte)0xFE, (byte)0x01, (byte)0xFE, (byte)0x01, |
| (byte)0xFE, (byte)0x01, (byte)0xFE, (byte)0x01 }, |
| |
| { (byte)0x01, (byte)0x1F, (byte)0x01, (byte)0x1F, |
| (byte)0x01, (byte)0x0E, (byte)0x01, (byte)0x0E }, |
| |
| { (byte)0x1F, (byte)0x01, (byte)0x1F, (byte)0x01, |
| (byte)0x0E, (byte)0x01, (byte)0x0E, (byte)0x01 }, |
| |
| { (byte)0xE0, (byte)0xFE, (byte)0xE0, (byte)0xFE, |
| (byte)0xF1, (byte)0xFE, (byte)0xF1, (byte)0xFE }, |
| |
| { (byte)0xFE, (byte)0xE0, (byte)0xFE, (byte)0xE0, |
| (byte)0xFE, (byte)0xF1, (byte)0xFE, (byte)0xF1 }, |
| |
| { (byte)0x01, (byte)0x01, (byte)0x01, (byte)0x01, |
| (byte)0x01, (byte)0x01, (byte)0x01, (byte)0x01 }, |
| |
| { (byte)0xFE, (byte)0xFE, (byte)0xFE, (byte)0xFE, |
| (byte)0xFE, (byte)0xFE, (byte)0xFE, (byte)0xFE }, |
| |
| { (byte)0xE0, (byte)0xE0, (byte)0xE0, (byte)0xE0, |
| (byte)0xF1, (byte)0xF1, (byte)0xF1, (byte)0xF1 }, |
| |
| { (byte)0x1F, (byte)0x1F, (byte)0x1F, (byte)0x1F, |
| (byte)0x0E, (byte)0x0E, (byte)0x0E, (byte)0x0E } |
| }; |
| |
| public static void main(String[] args) throws Exception { |
| |
| boolean failed = false; |
| |
| for (int i = 0; i < weakKeys.length; i++) { |
| DESKeySpec desSpec = new DESKeySpec(weakKeys[i]); |
| if (!DESKeySpec.isWeak(weakKeys[i], 0)) { |
| failed = true; |
| System.out.println("Entry " + i + " should be weak"); |
| } |
| } |
| |
| if (failed) { |
| throw new Exception("Failed test!!!"); |
| } |
| |
| System.out.println("Passed test."); |
| } |
| } |