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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.math.BigInteger;
import java.security.interfaces.DSAKeyPairGenerator;
import java.security.interfaces.DSAParams;
import java.security.SecureRandom;
import java.security.spec.DSAParameterSpec;
import java.security.InvalidParameterException;
import org.apache.harmony.security.tests.support.interfaces.DSAKeyPairGeneratorImpl;
public class DSAKeyPairGeneratorTest extends TestCase {
private final BigInteger p = new BigInteger("4");
private final BigInteger q = BigInteger.TEN;
private final BigInteger g = BigInteger.ZERO;
class MyDSA extends DSAKeyPairGeneratorImpl {
public MyDSA(DSAParams dsaParams) {
super(dsaParams);
}
}
/**
* java.security.interfaces.DSAKeyPairGenerator
* #initialize(DSAParams params, SecureRandom random)
*/
public void test_DSAKeyPairGenerator01() {
DSAParams dsaParams = new DSAParameterSpec(p, q, g);
SecureRandom random = null;
MyDSA dsa = new MyDSA(dsaParams);
try {
random = SecureRandom.getInstance("SHA1PRNG");
} catch (Exception e) {
fail("Unexpected exception for SecureRandom: " + e);
}
try {
dsa.initialize(dsaParams, random);
} catch (Exception e) {
fail("Unexpected exception: " + e);
}
try {
dsa.initialize(dsaParams, null);
fail("InvalidParameterException was not thrown");
} catch (InvalidParameterException ipe) {
//expected
} catch (Exception e) {
fail(e + " was thrown instead of InvalidParameterException");
}
try {
dsa.initialize(null, random);
fail("InvalidParameterException was not thrown");
} catch (InvalidParameterException ipe) {
//expected
} catch (Exception e) {
fail(e + " was thrown instead of InvalidParameterException");
}
}
/**
* java.security.interfaces.DSAKeyPairGenerator
* #initialize(int modlen, boolean genParams, SecureRandom randomm)
*/
public void test_DSAKeyPairGenerator02() {
int[] invalidLen = {-1, 0, 511, 513, 650, 1023, 1025};
DSAParams dsaParams = new DSAParameterSpec(p, q, g);
SecureRandom random = null;
MyDSA dsa = new MyDSA(null);
try {
random = SecureRandom.getInstance("SHA1PRNG");
} catch (Exception e) {
fail("Unexpected exception for SecureRandom: " + e);
}
//exception case
try {
dsa.initialize(520, false, random);
fail("InvalidParameterException was not thrown");
} catch (InvalidParameterException ipe) {
String str = ipe.getMessage();
if (!str.equals("there are not precomputed parameters")) {
fail("Incorrect exception's message: " + str);
}
} catch (Exception e) {
fail(e + " was thrown instead of InvalidParameterException");
}
//exception case
for (int i = 0; i < invalidLen.length; i++) {
try {
dsa.initialize(invalidLen[i], true, random);
fail("InvalidParameterException was not thrown");
} catch (InvalidParameterException ipe) {
String str = ipe.getMessage();
if (!str.equals("Incorrect modlen")) {
fail("Incorrect exception's message: " + str);
}
} catch (Exception e) {
fail(e + " was thrown instead of InvalidParameterException");
}
}
//positive case
dsa = new MyDSA(dsaParams);
try {
dsa.initialize(520, true, random);
} catch (Exception e) {
fail(e + " was thrown for subcase 1");
}
//positive case
try {
dsa.initialize(520, false, random);
} catch (Exception e) {
fail(e + " was thrown for subcase 1");
}
}
}
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