/*
* Copyright (c) 2015, 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.
*/
import static java.lang.System.out;
import java.nio.ByteBuffer;
import java.security.DigestException;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.security.Security;
import jdk.test.lib.RandomFactory;
/**
* @test
* @bug 8050371 8156059
* @summary Check md.digest(data) value whether same with digest output value
* with various update/digest methods.
* @author Kevin Liu
* @key randomness
* @library /test/lib
* @build jdk.test.lib.RandomFactory
* @run main TestSameValue
*/
public class TestSameValue {
public static void main(String[] args) throws Exception {
TestSameValue test1 = new TestSameValue();
test1.run();
}
private void run() throws Exception {
byte[] data = new byte[6706];
MessageDigest md = null;
// Initialize input data
RandomFactory.getRandom().nextBytes(data);
String[] algorithmArr = { "SHA", "Sha", "MD5", "md5", "SHA-224",
"SHA-256", "SHA-384", "SHA-512", "SHA3-224", "SHA3-256",
"SHA3-384", "SHA3-512" };
for (String algorithm : algorithmArr) {
try {
md = MessageDigest.getInstance(algorithm);
for (UpdateDigestMethod updateMethod : UpdateDigestMethod
.values()) {
byte[] output = updateMethod.updateDigest(data, md);
// Get the output and the "correct" one
byte[] standard = md.digest(data);
// Compare input and output
if (!MessageDigest.isEqual(output, standard)) {
throw new RuntimeException(
"Test failed at algorithm/provider/numUpdate:"
+ algorithm + "/" + md.getProvider()
+ "/" + updateMethod);
}
}
} catch (NoSuchAlgorithmException nae) {
if (algorithm.startsWith("SHA3") && !isSHA3supported()) {
continue;
} else {
throw nae;
}
}
}
out.println("All "
+ algorithmArr.length * UpdateDigestMethod.values().length
+ " tests Passed");
}
// SHA-3 hash algorithms are only supported by "SUN" provider
// and "OracleUcrypto" provider on Solaris 12.0 or later
// This method checks if system supports SHA-3
private boolean isSHA3supported() {
if (Security.getProvider("SUN") != null) {
return true;
}
if (Security.getProvider("OracleUcrypto") != null
&& "SunOS".equals(System.getProperty("os.name"))
&& System.getProperty("os.version").compareTo("5.12") >= 0) {
return true;
}
return false;
}
private static enum UpdateDigestMethod {
/*
* update the data one by one using method update(byte input) then do
* digest (giving the output buffer, offset, and the number of bytes to
* put in the output buffer)
*/
UPDATE_DIGEST_BUFFER {
@Override
public byte[] updateDigest(byte[] data, MessageDigest md)
throws DigestException {
for (byte element : data) {
md.update(element);
}
byte[] output = new byte[md.getDigestLength()];
int len = md.digest(output, 0, output.length);
if (len != output.length) {
throw new RuntimeException(
"ERROR" + ": digest length differs!");
}
return output;
}
},
/*
* update the data one by one using method update(byte input) then do
* digest
*/
UPDATE_DIGEST {
@Override
public byte[] updateDigest(byte[] data, MessageDigest md) {
for (byte element : data) {
md.update(element);
}
return md.digest();
}
},
/*
* update all the data at once as a block, then do digest ( giving the
* output buffer, offset, and the number of bytes to put in the output
* buffer)
*/
UPDATE_BLOCK_DIGEST_BUFFER {
@Override
public byte[] updateDigest(byte[] data, MessageDigest md)
throws DigestException {
md.update(data);
byte[] output = new byte[md.getDigestLength()];
int len = md.digest(output, 0, output.length);
if (len != output.length) {
throw new RuntimeException(
"ERROR" + ": digest length differs!");
}
return output;
}
},
// update all the data at once as a block, then do digest
UPDATE_BLOCK_DIGEST {
@Override
public byte[] updateDigest(byte[] data, MessageDigest md) {
md.update(data);
return md.digest();
}
},
/*
* update the leading bytes (length is "data.length-LASTNBYTES") at once
* as a block, then do digest (do a final update using the left
* LASTNBYTES bytes which is passed as a parameter for the digest
* method, then complete the digest)
*/
UPDATE_LEADING_BLOCK_DIGEST_REMAIN {
@Override
public byte[] updateDigest(byte[] data, MessageDigest md) {
byte[] mainPart = new byte[data.length - LASTNBYTES];
for (int i = 0; i < mainPart.length; i++) {
mainPart[i] = data[i];
}
for (int j = 0; j < LASTNBYTES; j++) {
REMAIN[j] = data[data.length - LASTNBYTES + j];
}
md.update(mainPart);
return md.digest(REMAIN);
}
},
/*
* update the data 2 bytes each time, after finishing updating, do
* digest (giving the output buffer, offset, and the number of bytes to
* put in the output buffer)
*/
UPDATE_BYTES_DIGEST_BUFFER {
@Override
public byte[] updateDigest(byte[] data, MessageDigest md)
throws DigestException {
for (int i = 0; i < data.length / 2; i++) {
md.update(data, i * 2, 2);
}
byte[] output = new byte[md.getDigestLength()];
int len = md.digest(output, 0, output.length);
if (len != output.length) {
throw new RuntimeException(
"ERROR" + ": digest length differs!");
}
return output;
}
},
/*
* update the data 2 bytes each time, after finishing updating, do
* digest
*/
UPDATE_BYTES_DIGEST {
@Override
public byte[] updateDigest(byte[] data, MessageDigest md) {
for (int i = 0; i < data.length / 2; i++) {
md.update(data, i * 2, 2);
}
return md.digest();
}
},
/*
* update the data one by one using method update(byte[] input, int
* offset, int len) for the leading bytes (length is
* "data.length-LASTNBYTES"), then do digest (do a final update using
* the left LASTNBYTES bytes which is passed as a parameter for digest
* method then complete the digest)
*/
UPDATE_BUFFER_LEADING_DIGEST_REMAIN {
@Override
public byte[] updateDigest(byte[] data, MessageDigest md) {
for (int i = 0; i < data.length - LASTNBYTES; i++) {
md.update(data, i, 1);
}
for (int j = 0; j < LASTNBYTES; j++) {
REMAIN[j] = data[data.length - LASTNBYTES + j];
}
return md.digest(REMAIN);
}
},
/*
* update the data one by one using method update(byte input) for the
* leading bytes (length is "data.length-LASTNBYTES"), then do digest
* (do a final update using the left LASTNBYTES bytes which is passed as
* a parameter for digest method, then complete the digest)
*/
UPDATE_LEADING_DIGEST_REMAIN {
@Override
public byte[] updateDigest(byte[] data, MessageDigest md) {
for (int i = 0; i < data.length - LASTNBYTES; i++) {
md.update(data[i]);
}
for (int j = 0; j < LASTNBYTES; j++) {
REMAIN[j] = data[data.length - LASTNBYTES + j];
}
return md.digest(REMAIN);
}
},
/*
* update all the data at once as a ByteBuffer, then do digest (giving
* the output buffer, offset, and the number of bytes to put in the
* output buffer)
*/
UPDATE_BYTE_BUFFER_DIGEST_BUFFER {
@Override
public byte[] updateDigest(byte[] data, MessageDigest md)
throws DigestException {
md.update(ByteBuffer.wrap(data));
byte[] output = new byte[md.getDigestLength()];
int len = md.digest(output, 0, output.length);
if (len != output.length) {
throw new RuntimeException(
"ERROR" + ": digest length differs!");
}
return output;
}
},
// update all the data at once as a ByteBuffer, then do digest
UPDATE_BYTE_BUFFER_DIGEST {
@Override
public byte[] updateDigest(byte[] data, MessageDigest md) {
md.update(ByteBuffer.wrap(data));
return md.digest();
}
},
/*
* update the leading bytes (length is "data.length-LASTNBYTES") at once
* as a ByteBuffer, then do digest (do a final update using the left
* LASTNBYTES bytes which is passed as a parameter for the digest
* method, then complete the digest)
*/
UPDATE_BYTE_BUFFER_LEADING_DIGEST_REMAIN {
@Override
public byte[] updateDigest(byte[] data, MessageDigest md) {
byte[] mainPart = new byte[data.length - LASTNBYTES];
for (int i = 0; i < mainPart.length; i++) {
mainPart[i] = data[i];
}
for (int j = 0; j < LASTNBYTES; j++) {
REMAIN[j] = data[data.length - LASTNBYTES + j];
}
md.update(ByteBuffer.wrap(mainPart));
return md.digest(REMAIN);
}
};
private static final int LASTNBYTES = 5;
private static final byte[] REMAIN = new byte[LASTNBYTES];
public abstract byte[] updateDigest(byte[] data, MessageDigest md)
throws DigestException;
}
}