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Source Code of TestPremaster

/*
* Copyright (c) 2005, 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 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);
    }
}
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