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/*
* Copyright (c) 2015, 2020, 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.
*/
import static java.lang.System.out;
import java.nio.ByteBuffer;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.security.Security;
import jdk.test.lib.RandomFactory;
/**
* @test
* @bug 8050371 8156059
* @summary Check md.getDigestLength() equal digest output length with various
* algorithm/dataLen/(update,digest methods).
* @author Kevin Liu
* @key randomness
* @library /test/lib
* @build jdk.test.lib.RandomFactory
* @run main TestSameLength
*/
public class TestSameLength {
public static void main(String[] args) throws Exception {
TestSameLength test = new TestSameLength();
test.run();
}
private void run() throws Exception {
String[] algorithmArr = { "SHA", "Sha", "SHA-1", "sha-1", "SHA1",
"sha1", "MD5", "md5", "SHA-224", "SHA-256", "SHA-384",
"SHA-512", "SHA3-224", "SHA3-256", "SHA3-384", "SHA3-512" };
int[] nUpdatesArr = { 0, 1, 2, 3 };
int[] dataLenArr = { 1, 50, 2500, 125000, 6250000 };
for (String algorithm : algorithmArr) {
for (UpdateMethod update : UpdateMethod.values()) {
for (int dataLen : dataLenArr) {
if (!runTest(algorithm, dataLen, update)) {
throw new RuntimeException(
"Test failed at algorithm/dataLen/numUpdate:"
+ algorithm + "/" + dataLen + "/"
+ update.toString());
}
}
}
}
out.println("All "
+ algorithmArr.length * nUpdatesArr.length * dataLenArr.length
+ " tests Passed");
}
private boolean runTest(String algo, long dataLen, UpdateMethod whichUpdate)
throws Exception {
try {
// Do initialization
byte[] data = new byte[(int) dataLen];
RandomFactory.getRandom().nextBytes(data);
MessageDigest md = MessageDigest.getInstance(algo);
int outputLen = md.getDigestLength();
// Perform the update using all available/possible update methods
whichUpdate.updateDigest(data, md, dataLen);
// Get the output
byte[] output = md.digest();
// Compare input and output
return outputLen == output.length;
} catch (NoSuchAlgorithmException nae) {
throw nae;
} catch (Exception ex) {
System.err.println("Testing: " + algo + "/" + dataLen + "/"
+ whichUpdate.toString()
+ " failed with unexpected exception");
ex.printStackTrace();
throw ex;
}
}
private static enum UpdateMethod {
UPDATE_BYTE {
@Override
public void updateDigest(byte[] data, MessageDigest md,
long dataLen) {
for (int i = 0; i < dataLen; i++) {
md.update(data[i]);
}
}
},
UPDATE_BUFFER {
@Override
public void updateDigest(byte[] data, MessageDigest md,
long dataLen) {
md.update(data);
}
},
UPDATE_BUFFER_LEN {
@Override
public void updateDigest(byte[] data, MessageDigest md,
long dataLen) {
for (int i = 0; i < dataLen; i++) {
md.update(data, i, 1);
}
}
},
UPDATE_BYTE_BUFFER {
@Override
public void updateDigest(byte[] data, MessageDigest md,
long dataLen) {
md.update(ByteBuffer.wrap(data));
}
};
public abstract void updateDigest(byte[] data, MessageDigest md,
long dataLen);
}
}
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