74 lines
2.5 KiB
Java
74 lines
2.5 KiB
Java
/*
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* Copyright (c) 1997, 2024, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @bug 0000000
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* @library /test/lib
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* @summary DHKeyGenSpeed
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* @author Jan Luehe
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*/
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import java.security.*;
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import java.security.spec.*;
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import java.security.interfaces.*;
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import javax.crypto.*;
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import javax.crypto.spec.*;
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import java.math.*;
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import jdk.test.lib.security.DiffieHellmanGroup;
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import jdk.test.lib.security.SecurityUtils;
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public class DHKeyGenSpeed {
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public static void main(String[] args) throws Exception {
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DHKeyGenSpeed test = new DHKeyGenSpeed();
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test.run();
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System.out.println("Test Passed");
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}
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public void run() throws Exception {
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long start, end;
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DiffieHellmanGroup dhGroup = SecurityUtils.getTestDHGroup();
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BigInteger p = dhGroup.getPrime();
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BigInteger g = new BigInteger(1, dhGroup.getBase().toByteArray());
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int l = 576;
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DHParameterSpec spec =
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new DHParameterSpec(p, g, l);
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// generate keyPairs using parameters
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KeyPairGenerator keyGen =
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KeyPairGenerator.getInstance("DH",
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System.getProperty("test.provider.name", "SunJCE"));
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start = System.currentTimeMillis();
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keyGen.initialize(spec);
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KeyPair keys = keyGen.generateKeyPair();
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end = System.currentTimeMillis();
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System.out.println("PrimeBits\tExponentBits");
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System.out.println(dhGroup.getPrime().bitLength() + "\t\t" + l);
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System.out.println("keyGen(millisecond): " + (end - start));
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System.out.println("Test Passed!");
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}
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}
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