/*

 * Copyright (c) 2015, 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

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 */

import sun.security.tools.keytool.CertAndKeyGen;

import sun.security.x509.X500Name;

import java.security.KeyStore;

import java.security.SecureRandom;

import java.security.cert.X509Certificate;

import java.security.interfaces.RSAPrivateCrtKey;

/*

 * @test

 * @bug 8023546

 * @key intermittent

 * @modules java.base/sun.security.x509

 *          java.base/sun.security.tools.keytool

 * @summary sun/security/mscapi/ShortRSAKey1024.sh fails intermittently

 * @requires os.family == "windows"

 */

public class SmallPrimeExponentP {

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

        String osName = System.getProperty("os.name");

        if (!osName.startsWith("Windows")) {

            System.out.println("Not windows");

            return;

        }

        KeyStore ks = KeyStore.getInstance("Windows-MY");

        ks.load(null, null);

        CertAndKeyGen ckg = new CertAndKeyGen("RSA", "SHA1withRSA");

        ckg.setRandom(new SecureRandom());

        boolean see63 = false, see65 = false;

        while (!see63 || !see65) {

            ckg.generate(1024);

            RSAPrivateCrtKey k = (RSAPrivateCrtKey) ckg.getPrivateKey();

            int len = k.getPrimeExponentP().toByteArray().length;

            if (len == 63 || len == 65) {

                if (len == 63) {

                    if (see63) continue;

                    else see63 = true;

                }

                if (len == 65) {

                    if (see65) continue;

                    else see65 = true;

                }

                System.err.print(len);

                ks.setKeyEntry("anything", k, null, new X509Certificate[]{

                        ckg.getSelfCertificate(new X500Name("CN=Me"), 1000)

                });

            }

            System.err.print('.');

        }

        ks.store(null, null);

    }

}