| /* |
| * Copyright (c) 2017, 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 8175251 |
| * @summary ensure that PKCS8-encoded private key with leading 0s |
| * can be loaded. |
| * @run main TestLeadingZeros |
| */ |
| |
| import java.io.*; |
| import java.security.*; |
| import java.security.spec.PKCS8EncodedKeySpec; |
| import java.security.interfaces.*; |
| import java.util.*; |
| |
| public class TestLeadingZeros { |
| |
| // The following test vectors are various BER encoded PKCS8 bytes |
| static final String[] PKCS8_ENCODINGS = { |
| // first is the original one from PKCS8Test |
| "301e020100301206052b0e03020c30090201020201030201040403020101A000", |
| // changed original to version w/ 1 leading 0 |
| "301f02020000301206052b0e03020c30090201020201030201040403020101A000", |
| // changed original to P w/ 1 leading 0 |
| "301f020100301306052b0e03020c300a020200020201030201040403020101A000", |
| // changed original to X w/ 2 leading 0s |
| "3020020100301206052b0e03020c300902010202010302010404050203000001A000" |
| }; |
| |
| public static void main(String[] argv) throws Exception { |
| KeyFactory factory = KeyFactory.getInstance("DSA", "SUN"); |
| |
| for (String encodings : PKCS8_ENCODINGS) { |
| byte[] encodingBytes = hexToBytes(encodings); |
| PKCS8EncodedKeySpec encodedKeySpec = |
| new PKCS8EncodedKeySpec(encodingBytes); |
| DSAPrivateKey privKey2 = (DSAPrivateKey) |
| factory.generatePrivate(encodedKeySpec); |
| System.out.println("key: " + privKey2); |
| } |
| System.out.println("Test Passed"); |
| } |
| |
| private static byte[] hexToBytes(String hex) { |
| if (hex.length() % 2 != 0) { |
| throw new RuntimeException("Input should be even length"); |
| } |
| int size = hex.length() / 2; |
| byte[] result = new byte[size]; |
| for (int i = 0; i < size; i++) { |
| int hi = Character.digit(hex.charAt(2 * i), 16); |
| int lo = Character.digit(hex.charAt(2 * i + 1), 16); |
| if ((hi == -1) || (lo == -1)) { |
| throw new RuntimeException("Input should be hexadecimal"); |
| } |
| result[i] = (byte) (16 * hi + lo); |
| } |
| return result; |
| } |
| } |