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/*
* Copyright (C) 2009 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package tests.targets.security;
import dalvik.annotation.AndroidOnly;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.security.Provider;
import java.security.Security;
import junit.framework.TestCase;
public class MessageDigestTestMD2 extends TestCase {
@AndroidOnly("Android doesn't include MD2 message digest algorithm")
public void testMessageDigest1() throws Exception{
try {
MessageDigest digest = MessageDigest.getInstance("MD2");
fail("MD2 MessageDigest algorithm must not be supported");
} catch (NoSuchAlgorithmException e) {
// expected
}
try {
MessageDigest digest = MessageDigest.getInstance(
"1.2.840.113549.2.2");
fail("MD2 MessageDigest algorithm must not be supported");
} catch (NoSuchAlgorithmException e) {
// expected
}
}
@AndroidOnly("Android allows usage of MD2 in third party providers")
public void testMessageDigest2() throws Exception{
Provider provider = new MyProvider();
Security.addProvider(provider);
try {
MessageDigest digest = MessageDigest.getInstance("MD2");
digest = MessageDigest.getInstance("1.2.840.113549.2.2");
} finally {
Security.removeProvider(provider.getName());
}
}
public final class MyProvider extends Provider {
public MyProvider() {
super("MessageDigestMD2Test", 1.00, "TestProvider");
put("MessageDigest.MD2",
"tests.targets.security.MessageDigestTestMD2$MD2");
put("Alg.Alias.MessageDigest.1.2.840.113549.2.2", "MD2");
}
}
public static class MD2 extends MessageDigest {
public MD2() {
super("MD2");
}
protected MD2(String algorithm) {
super(algorithm);
}
@Override
protected byte[] engineDigest() {
return null;
}
@Override
protected void engineReset() {
}
@Override
protected void engineUpdate(byte input) {
}
@Override
protected void engineUpdate(byte[] input, int offset, int len) {
}
}
}
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