84 lines
3.2 KiB
Java
84 lines
3.2 KiB
Java
/*
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* Copyright (c) 2017, 2024, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @bug 8175251
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* @summary ensure that PKCS8-encoded private key with leading 0s
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* can be loaded.
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* @run main TestLeadingZeros
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*/
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import java.io.*;
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import java.security.*;
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import java.security.spec.PKCS8EncodedKeySpec;
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import java.security.interfaces.*;
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import java.util.*;
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public class TestLeadingZeros {
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// The following test vectors are various BER encoded PKCS8 bytes
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static final String[] PKCS8_ENCODINGS = {
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// first is the original one from PKCS8Test
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"301e020100301206052b0e03020c30090201020201030201040403020101A000",
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// changed original to version w/ 1 leading 0
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"301f02020000301206052b0e03020c30090201020201030201040403020101A000",
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// changed original to P w/ 1 leading 0
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"301f020100301306052b0e03020c300a020200020201030201040403020101A000",
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// changed original to X w/ 2 leading 0s
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"3020020100301206052b0e03020c300902010202010302010404050203000001A000"
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};
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public static void main(String[] argv) throws Exception {
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KeyFactory factory = KeyFactory.getInstance("DSA",
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System.getProperty("test.provider.name", "SUN"));
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for (String encodings : PKCS8_ENCODINGS) {
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byte[] encodingBytes = hexToBytes(encodings);
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PKCS8EncodedKeySpec encodedKeySpec =
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new PKCS8EncodedKeySpec(encodingBytes);
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DSAPrivateKey privKey2 = (DSAPrivateKey)
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factory.generatePrivate(encodedKeySpec);
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System.out.println("key: " + privKey2);
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}
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System.out.println("Test Passed");
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}
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private static byte[] hexToBytes(String hex) {
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if (hex.length() % 2 != 0) {
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throw new RuntimeException("Input should be even length");
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}
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int size = hex.length() / 2;
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byte[] result = new byte[size];
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for (int i = 0; i < size; i++) {
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int hi = Character.digit(hex.charAt(2 * i), 16);
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int lo = Character.digit(hex.charAt(2 * i + 1), 16);
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if ((hi == -1) || (lo == -1)) {
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throw new RuntimeException("Input should be hexadecimal");
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}
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result[i] = (byte) (16 * hi + lo);
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}
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return result;
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}
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}
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