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/*
* Copyright (c) 1998, 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 0000000
* @library /test/lib
* @summary DHKeyFactory
* @author Jan Luehe
*/
import java.io.*;
import java.math.BigInteger;
import java.security.*;
import java.security.spec.*;
import java.security.interfaces.*;
import javax.crypto.*;
import javax.crypto.spec.*;
import javax.crypto.interfaces.*;
import jdk.test.lib.security.DiffieHellmanGroup;
import jdk.test.lib.security.SecurityUtils;
/**
* This test creates a DH keypair, retrieves the encodings of the DH public and
* private key, and feeds those encodings to a DH key factory, which parses
* the encodings and creates a DH public and private key from them.
*/
public class DHKeyFactory {
private DHKeyFactory() {}
public static void main(String argv[]) throws Exception {
DHKeyFactory test = new DHKeyFactory();
test.run();
System.out.println("Test Passed");
}
private void run() throws Exception {
DiffieHellmanGroup dhGroup = SecurityUtils.getTestDHGroup();
DHParameterSpec dhParamSpec = new DHParameterSpec(dhGroup.getPrime(), dhGroup.getBase());
System.out.println("Using " + dhGroup.name() + " Diffie-Hellman parameters");
KeyPairGenerator kpgen = KeyPairGenerator.getInstance("DH",
System.getProperty("test.provider.name", "SunJCE"));
kpgen.initialize(dhParamSpec);
KeyPair kp = kpgen.generateKeyPair();
// get the public key encoding
byte[] pubKeyEnc = kp.getPublic().getEncoded();
// get the private key encoding
byte[] privKeyEnc = kp.getPrivate().getEncoded();
KeyFactory kfac = KeyFactory.getInstance("DH",
System.getProperty("test.provider.name", "SunJCE"));
X509EncodedKeySpec x509KeySpec = new X509EncodedKeySpec(pubKeyEnc);
PublicKey pubKey = kfac.generatePublic(x509KeySpec);
PKCS8EncodedKeySpec pkcsKeySpec = new PKCS8EncodedKeySpec(privKeyEnc);
PrivateKey privKey = kfac.generatePrivate(pkcsKeySpec);
}
}
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