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/*
* Copyright (c) 2012, 2018, 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 6414899
* @summary Ensure the cloning functionality works.
* @author Valerie Peng
* @library /test/lib ..
* @key randomness
* @modules jdk.crypto.cryptoki
* @run main/othervm TestCloning
* @run main/othervm TestCloning sm
*/
import java.security.MessageDigest;
import java.security.Provider;
import java.util.Arrays;
import java.util.Random;
public class TestCloning extends PKCS11Test {
private static final String[] ALGOS = {
"MD2", "MD5", "SHA1", "SHA-224", "SHA-256", "SHA-384", "SHA-512"
};
public static void main(String[] args) throws Exception {
main(new TestCloning(), args);
}
private static final byte[] data1 = new byte[10];
private static final byte[] data2 = new byte[10*1024];
@Override
public void main(Provider p) throws Exception {
Random r = new Random();
byte[] data1 = new byte[10];
byte[] data2 = new byte[2*1024];
r.nextBytes(data1);
r.nextBytes(data2);
System.out.println("Testing against provider " + p.getName());
for (int i = 0; i < ALGOS.length; i++) {
if (p.getService("MessageDigest", ALGOS[i]) == null) {
System.out.println(ALGOS[i] + " is not supported, skipping");
continue;
} else {
System.out.println("Testing " + ALGOS[i] + " of " + p.getName());
MessageDigest md = MessageDigest.getInstance(ALGOS[i], p);
try {
md = testCloning(md, p);
// repeat the test again after generating digest once
for (int j = 0; j < 10; j++) {
md = testCloning(md, p);
}
} catch (Exception ex) {
if (ALGOS[i] == "MD2" &&
p.getName().equalsIgnoreCase("SunPKCS11-NSS")) {
// known bug in NSS; ignore for now
System.out.println("Ignore Known bug in MD2 of NSS");
continue;
}
throw ex;
}
}
}
}
private static MessageDigest testCloning(MessageDigest mdObj, Provider p)
throws Exception {
// copy#0: clone at state BLANK w/o any data
MessageDigest mdCopy0 = (MessageDigest) mdObj.clone();
// copy#1: clone again at state BUFFERED w/ very short data
mdObj.update(data1);
mdCopy0.update(data1);
MessageDigest mdCopy1 = (MessageDigest) mdObj.clone();
// copy#2: clone again after updating it w/ long data to trigger
// the state into INIT
mdObj.update(data2);
mdCopy0.update(data2);
mdCopy1.update(data2);
MessageDigest mdCopy2 = (MessageDigest) mdObj.clone();
// copy#3: clone again after updating it w/ very short data
mdObj.update(data1);
mdCopy0.update(data1);
mdCopy1.update(data1);
mdCopy2.update(data1);
MessageDigest mdCopy3 = (MessageDigest) mdObj.clone();
// copy#4: clone again after updating it w/ long data
mdObj.update(data2);
mdCopy0.update(data2);
mdCopy1.update(data2);
mdCopy2.update(data2);
mdCopy3.update(data2);
MessageDigest mdCopy4 = (MessageDigest) mdObj.clone();
// check digest equalities
byte[] answer = mdObj.digest();
byte[] result0 = mdCopy0.digest();
byte[] result1 = mdCopy1.digest();
byte[] result2 = mdCopy2.digest();
byte[] result3 = mdCopy3.digest();
byte[] result4 = mdCopy4.digest();
check(answer, result0, "copy0");
check(answer, result1, "copy1");
check(answer, result2, "copy2");
check(answer, result3, "copy3");
check(answer, result4, "copy4");
return mdCopy3;
}
private static void check(byte[] d1, byte[] d2, String copyName)
throws Exception {
if (Arrays.equals(d1, d2) == false) {
throw new RuntimeException(copyName + " digest mismatch!");
}
}
}
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