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/*
* Copyright (C) 2007 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.security.interfaces;
import junit.framework.TestCase;
import java.security.KeyPair;
import java.security.KeyPairGenerator;
import java.security.SecureRandom;
import java.security.interfaces.DSAPrivateKey;
import java.security.interfaces.DSAPublicKey;
import java.security.spec.DSAParameterSpec;
public class DSAPublicKeyTest extends TestCase {
/**
* java.security.interfaces.DSAPublicKey
* #getY()
* test covers following use cases
* Case 1: check with predefined p, q, g, x
* Case 2: check with random p, q, g, x. It takes some time (up to
* minute)
*/
public void test_getY() throws Exception {
KeyPairGenerator keyGen = null;
KeyPair keys = null;
DSAPrivateKey priv = null;
DSAPublicKey publ = null;
// Case 1: check with predefined p, q, g, x
keyGen = KeyPairGenerator.getInstance("DSA");
keyGen.initialize(new DSAParameterSpec(Util.P, Util.Q, Util.G), new SecureRandom());
keys = keyGen.generateKeyPair();
priv = (DSAPrivateKey) keys.getPrivate();
publ = (DSAPublicKey) keys.getPublic();
assertNotNull("Invalid Y value", publ.getY());
// Case 2: check with random p, q, g, x. It takes some time (up to
// minute)
keyGen = KeyPairGenerator.getInstance("DSA");
keys = keyGen.generateKeyPair();
priv = (DSAPrivateKey) keys.getPrivate();
publ = (DSAPublicKey) keys.getPublic();
assertNotNull("Invalid Y value", publ.getY());
}
}
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