/*

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 * 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.

 *

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 */

/**

 * @test

 * @bug 6316539

 * @summary Basic tests for TlsRsaPremasterSecret generator

 * @author Andreas Sterbenz

 * @library ..

 */

import java.security.Security;

import java.security.Provider;

import javax.crypto.KeyGenerator;

import javax.crypto.SecretKey;

import sun.security.internal.spec.TlsRsaPremasterSecretParameterSpec;

public class TestPremaster extends PKCS11Test {

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

        main(new TestPremaster());

    }

    public void main(Provider provider) throws Exception {

        if (provider.getService(

                "KeyGenerator", "SunTlsRsaPremasterSecret") == null) {

            System.out.println("Not supported by provider, skipping");

            return;

        }

        KeyGenerator kg;

        kg = KeyGenerator.getInstance("SunTlsRsaPremasterSecret", provider);

        try {

            kg.generateKey();

            throw new Exception("no exception");

        } catch (IllegalStateException e) {

            System.out.println("OK: " + e);

        }

        test(kg, 3, 0);

        test(kg, 3, 1);

        test(kg, 3, 2);

        test(kg, 4, 0);

        System.out.println("Done.");

    }

    private static void test(KeyGenerator kg, int major, int minor)

            throws Exception {

        kg.init(new TlsRsaPremasterSecretParameterSpec(major, minor));

        SecretKey key = kg.generateKey();

        byte[] encoded = key.getEncoded();

        if (encoded.length != 48) {

            throw new Exception("length: " + encoded.length);

        }

        if ((encoded[0] != major) || (encoded[1] != minor)) {

            throw new Exception("version mismatch: "  + encoded[0] +

                "." + encoded[1]);

        }

        System.out.println("OK: " + major + "." + minor);

    }

}