/*

 * Copyright 2004 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,

 * CA 95054 USA or visit www.sun.com if you need additional information or

 * have any questions.

 */

/**

 * @test

 * @bug     5078280

 * @summary make sure generated key pairs are exactly the requested length

 * @author  Andreas Sterbenz

 */

import java.security.*;

import java.security.interfaces.*;

public class TestKeyPairGeneratorLength {

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

        test(512);

        test(513);

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

    }

    private static void test(int len) throws Exception {

        KeyPairGenerator kpg = KeyPairGenerator.getInstance("RSA", "SunRsaSign");

        kpg.initialize(len);

        for (int i = 0; i < 6; i++) {

            System.out.println("Generating keypair " + len + " bit keypair " + (i + 1) + "...");

            KeyPair kp = kpg.generateKeyPair();

            RSAPublicKey key = (RSAPublicKey)kp.getPublic();

            int k = key.getModulus().bitLength();

            if (k != len) {

                throw new Exception("length mismatch: " + k);

            }

        }

    }

}