/*

 * Copyright 2006 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

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 */

/**

 * @test

 * @bug 6405536

 * @summary Verify that we can use ECGenParameterSpec

 * @author Andreas Sterbenz

 * @library ..

 */

import java.util.*;

import java.security.*;

import java.security.spec.*;

import java.security.interfaces.ECPublicKey;

public class TestECGenSpec extends PKCS11Test {

    public static void main(String[] args) throws Exception {

        main(new TestECGenSpec());

    }

    public void main(Provider p) throws Exception {

        if (p.getService("Signature", "SHA1withECDSA") == null) {

            System.out.println("Provider does not support ECDSA, skipping...");

            return;

        }

        String[] names = { "NIST P-192", "sect163k1", "1.3.132.0.26", "X9.62 c2tnb239v1"};

        int[] lengths = {192, 163, 233, 239};

        for (int i = 0; i < names.length; i++) {

            String name = names[i];

            int len = lengths[i];

            System.out.println("Testing " + name + "...");

            ECGenParameterSpec spec = new ECGenParameterSpec(name);

            AlgorithmParameters algParams = AlgorithmParameters.getInstance("EC", p);

            algParams.init(spec);

            ECParameterSpec ecSpec = algParams.getParameterSpec(ECParameterSpec.class);

            System.out.println(ecSpec);

            // no public API to get the curve name, so rely on toString();

            if (ecSpec.toString().contains(name) == false) {

                throw new Exception("wrong curve");

            }

            algParams = AlgorithmParameters.getInstance("EC", p);

            algParams.init(ecSpec);

            ECGenParameterSpec genSpec = algParams.getParameterSpec(ECGenParameterSpec.class);

            System.out.println(genSpec.getName());

            KeyPairGenerator kpg = KeyPairGenerator.getInstance("EC", p);

            kpg.initialize(spec);

            KeyPair kp = kpg.generateKeyPair();

            System.out.println(kp.getPrivate());

            ECPublicKey publicKey = (ECPublicKey)kp.getPublic();

            if (publicKey.getParams().getCurve().getField().getFieldSize() != len) {

                throw new Exception("wrong curve");

            }

            System.out.println();

        }

    }

}