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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.security.spec;
import junit.framework.TestCase;
import java.security.Key;
import java.security.KeyFactory;
import java.security.KeyPair;
import java.security.KeyPairGenerator;
import java.security.interfaces.DSAPrivateKey;
import java.security.interfaces.DSAPublicKey;
import java.security.spec.EncodedKeySpec;
import java.security.spec.PKCS8EncodedKeySpec;
import java.security.spec.X509EncodedKeySpec;
public class EncodedKeySpec2Test extends TestCase {
/**
* java.security.spec.EncodedKeySpec#getEncoded()
*/
public void test_getEncoded() throws Exception {
KeyPairGenerator keyGen = KeyPairGenerator.getInstance("DSA");
keyGen.initialize(1024);
KeyPair keys = keyGen.generateKeyPair();
KeyFactory fact = KeyFactory.getInstance("DSA");
// check public key encoding
byte[] encoded = keys.getPublic().getEncoded();
Key key = fact.generatePublic(new X509EncodedKeySpec(encoded));
assertTrue("public key encodings were different",
isEqual(key, keys.getPublic()));
// check private key encoding
encoded = keys.getPrivate().getEncoded();
key = fact.generatePrivate(new PKCS8EncodedKeySpec(encoded));
assertTrue("private key encodings were different",
isEqual(key, keys.getPrivate()));
}
private boolean isEqual(Key key1, Key key2) {
if (key1 instanceof DSAPublicKey && key2 instanceof DSAPublicKey) {
DSAPublicKey dsa1 = ((DSAPublicKey) key1);
DSAPublicKey dsa2 = ((DSAPublicKey) key2);
return dsa1.getY().equals(dsa2.getY())
&& dsa1.getParams().getG().equals(dsa2.getParams().getG())
&& dsa1.getParams().getP().equals(dsa2.getParams().getP())
&& dsa1.getParams().getQ().equals(dsa2.getParams().getQ());
} else if (key1 instanceof DSAPrivateKey
&& key2 instanceof DSAPrivateKey) {
DSAPrivateKey dsa1 = ((DSAPrivateKey) key1);
DSAPrivateKey dsa2 = ((DSAPrivateKey) key2);
return dsa1.getX().equals(dsa2.getX())
&& dsa1.getParams().getG().equals(dsa2.getParams().getG())
&& dsa1.getParams().getP().equals(dsa2.getParams().getP())
&& dsa1.getParams().getQ().equals(dsa2.getParams().getQ());
} else {
return false;
}
}
}
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