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/*
* Copyright (c) 2015, 2024, 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.
*/
/**
* @test
* @bug 8044199 8137231
* @summary Check same KeyPair's private key and public key have same modulus.
* also check public key's public exponent equals to given spec's public
* exponent. Only key size 1024 is tested with RSAKeyGenParameterSpec.F0 (3).
* @run main SpecTest 512
* @run main SpecTest 768
* @run main SpecTest 1024
* @run main SpecTest 1024 167971
* @run main SpecTest 2048
* @run main/timeout=240 SpecTest 4096
* @run main/timeout=240 SpecTest 5120
*/
import java.math.BigInteger;
import java.security.KeyPair;
import java.security.KeyPairGenerator;
import java.security.interfaces.RSAKey;
import java.security.interfaces.RSAPrivateKey;
import java.security.interfaces.RSAPublicKey;
import java.security.spec.RSAKeyGenParameterSpec;
public class SpecTest {
/**
* ALGORITHM name, fixed as RSA.
*/
private static final String KEYALG = "RSA";
/**
* JDK default RSA Provider.
*/
private static final String PROVIDER =
System.getProperty("test.provider.name", "SunRsaSign");
/**
*
* @param kpair test key pair
* @param pubExponent expected public exponent.
* @return true if test passed. false if test failed.
*/
private static boolean specTest(KeyPair kpair, BigInteger pubExponent) {
boolean passed = true;
RSAPrivateKey priv = (RSAPrivateKey) kpair.getPrivate();
RSAPublicKey pub = (RSAPublicKey) kpair.getPublic();
// test the getModulus method
if ((priv instanceof RSAKey) && (pub instanceof RSAKey)) {
if (!priv.getModulus().equals(pub.getModulus())) {
System.out.println("priv.getModulus() = " + priv.getModulus());
System.out.println("pub.getModulus() = " + pub.getModulus());
passed = false;
}
if (!pubExponent.equals(pub.getPublicExponent())) {
System.out.println("pubExponent = " + pubExponent);
System.out.println("pub.getPublicExponent() = "
+ pub.getPublicExponent());
passed = false;
}
}
return passed;
}
public static void main(String[] args) throws Exception {
int size = 0;
if (args.length >= 1) {
size = Integer.parseInt(args[0]);
} else {
throw new RuntimeException("Missing keysize to test with");
}
BigInteger publicExponent
= (args.length >= 2) ? new BigInteger(args[1]) : RSAKeyGenParameterSpec.F4;
System.out.println("Running test with key size: " + size
+ " and public exponent: " + publicExponent);
KeyPairGenerator kpg1 = KeyPairGenerator.getInstance(KEYALG, PROVIDER);
kpg1.initialize(new RSAKeyGenParameterSpec(size, publicExponent));
if (!specTest(kpg1.generateKeyPair(), publicExponent)) {
throw new RuntimeException("Test failed.");
}
}
}
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