95 lines
3.2 KiB
Java
95 lines
3.2 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 DHGenSharedSecret
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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.BigInteger;
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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 DHGenSharedSecret {
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public static void main(String[] args) throws Exception {
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DHGenSharedSecret test = new DHGenSharedSecret();
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test.run();
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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 = 512;
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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", "SunJCE");
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keyGen.initialize(spec);
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// Alice generates her key pairs
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KeyPair keyA = keyGen.generateKeyPair();
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// Bob generates his key pairs
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KeyPair keyB = keyGen.generateKeyPair();
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// Alice encodes her public key in x509 format
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// , and sends it over to Bob.
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byte[] alicePubKeyEnc = keyA.getPublic().getEncoded();
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// bob encodes his publicKey in x509 format and
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// sends it over to Alice
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byte[] bobPubKeyEnc = keyB.getPublic().getEncoded();
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// bob uses it to generate Secret
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X509EncodedKeySpec x509Spec =
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new X509EncodedKeySpec(alicePubKeyEnc);
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KeyFactory bobKeyFac = KeyFactory.getInstance("DH", "SunJCE");
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PublicKey alicePubKey = bobKeyFac.generatePublic(x509Spec);
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KeyAgreement bobAlice = KeyAgreement.getInstance("DH", "SunJCE");
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start = System.currentTimeMillis();
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bobAlice.init(keyB.getPrivate());
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bobAlice.doPhase(alicePubKey, true);
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byte[] bobSecret = bobAlice.generateSecret();
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end = System.currentTimeMillis();
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System.out.println("Time elapsed: " + (end - start));
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System.out.println("Test Passed!");
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}
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}
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