/*
* Copyright (c) 2002, 2003, 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 4775971
* @summary test the clone implementation of SHA, SHA-256,
* SHA-384, SHA-512 MessageDigest implementation.
*/
import java.security.*;
import java.util.*;
public class TestSHAClone {
private static final String[] ALGOS = {
"SHA", "SHA-256", "SHA-512", "SHA-384"
};
private static byte[] input1 = {
(byte)0x1, (byte)0x2, (byte)0x3
};
private static byte[] input2 = {
(byte)0x4, (byte)0x5, (byte)0x6
};
private MessageDigest md;
private TestSHAClone(String algo, Provider p) throws Exception {
md = MessageDigest.getInstance(algo, p);
}
private void run() throws Exception {
md.update(input1);
MessageDigest md2 = (MessageDigest) md.clone();
md.update(input2);
md2.update(input2);
if (!Arrays.equals(md.digest(), md2.digest())) {
throw new Exception(md.getAlgorithm() + ": comparison failed");
} else {
System.out.println(md.getAlgorithm() + ": passed");
}
}
public static void main(String[] argv) throws Exception {
Provider p = Security.getProvider("SUN");
for (int i=0; i<ALGOS.length; i++) {
TestSHAClone test = new TestSHAClone(ALGOS[i], p);
test.run();
}
}
}