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Java example source code file (ShortRSAKey512.java)

This example Java source code file (ShortRSAKey512.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

begin, certificate, certificate\-\-\-\-\-\\n, end, exception, inputstream, masga1uechmesmf2ytedmbsga1uecxmuu3vuslntrsbuzxn0ifnlcml2y2uwhhcn\\n, net, network, outputstream, pkcs8encodedkeyspec, security, shortrsakey512, ssl, sslcontext, sslsocket, string, thread, util

The ShortRSAKey512.java Java example source code

/*
 * Copyright (c) 2012, 2013, 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.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * 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.
 */

// This test case relies on updated static security property, no way to re-use
// security property in samevm/agentvm mode.

/*
 * @test
 * @bug 7106773
 * @summary 512 bits RSA key cannot work with SHA384 and SHA512
 *
 *     SunJSSE does not support dynamic system properties, no way to re-use
 *     system properties in samevm/agentvm mode.
 * @run main/othervm ShortRSAKey512 PKIX
 * @run main/othervm ShortRSAKey512 SunX509
 */

import java.net.*;
import java.util.*;
import java.io.*;
import javax.net.ssl.*;
import java.security.Security;
import java.security.KeyStore;
import java.security.KeyFactory;
import java.security.cert.Certificate;
import java.security.cert.CertificateFactory;
import java.security.spec.*;
import java.security.interfaces.*;
import java.util.Base64;


public class ShortRSAKey512 {

    /*
     * =============================================================
     * Set the various variables needed for the tests, then
     * specify what tests to run on each side.
     */

    /*
     * Should we run the client or server in a separate thread?
     * Both sides can throw exceptions, but do you have a preference
     * as to which side should be the main thread.
     */
    static boolean separateServerThread = false;

    /*
     * Where do we find the keystores?
     */
    // Certificates and key used in the test.
    static String trustedCertStr =
        "-----BEGIN CERTIFICATE-----\n" +
        "MIICkjCCAfugAwIBAgIBADANBgkqhkiG9w0BAQQFADA7MQswCQYDVQQGEwJVUzEN\n" +
        "MAsGA1UEChMESmF2YTEdMBsGA1UECxMUU3VuSlNTRSBUZXN0IFNlcml2Y2UwHhcN\n" +
        "MTEwODE5MDE1MjE5WhcNMzIwNzI5MDE1MjE5WjA7MQswCQYDVQQGEwJVUzENMAsG\n" +
        "A1UEChMESmF2YTEdMBsGA1UECxMUU3VuSlNTRSBUZXN0IFNlcml2Y2UwgZ8wDQYJ\n" +
        "KoZIhvcNAQEBBQADgY0AMIGJAoGBAM8orG08DtF98TMSscjGsidd1ZoN4jiDpi8U\n" +
        "ICz+9dMm1qM1d7O2T+KH3/mxyox7Rc2ZVSCaUD0a3CkhPMnlAx8V4u0H+E9sqso6\n" +
        "iDW3JpOyzMExvZiRgRG/3nvp55RMIUV4vEHOZ1QbhuqG4ebN0Vz2DkRft7+flthf\n" +
        "vDld6f5JAgMBAAGjgaUwgaIwHQYDVR0OBBYEFLl81dnfp0wDrv0OJ1sxlWzH83Xh\n" +
        "MGMGA1UdIwRcMFqAFLl81dnfp0wDrv0OJ1sxlWzH83XhoT+kPTA7MQswCQYDVQQG\n" +
        "EwJVUzENMAsGA1UEChMESmF2YTEdMBsGA1UECxMUU3VuSlNTRSBUZXN0IFNlcml2\n" +
        "Y2WCAQAwDwYDVR0TAQH/BAUwAwEB/zALBgNVHQ8EBAMCAQYwDQYJKoZIhvcNAQEE\n" +
        "BQADgYEALlgaH1gWtoBZ84EW8Hu6YtGLQ/L9zIFmHonUPZwn3Pr//icR9Sqhc3/l\n" +
        "pVTxOINuFHLRz4BBtEylzRIOPzK3tg8XwuLb1zd0db90x3KBCiAL6E6cklGEPwLe\n" +
        "XYMHDn9eDsaq861Tzn6ZwzMgw04zotPMoZN0mVd/3Qca8UJFucE=\n" +
        "-----END CERTIFICATE-----";

    static String targetCertStr =
        "-----BEGIN CERTIFICATE-----\n" +
        "MIICNDCCAZ2gAwIBAgIBDDANBgkqhkiG9w0BAQQFADA7MQswCQYDVQQGEwJVUzEN\n" +
        "MAsGA1UEChMESmF2YTEdMBsGA1UECxMUU3VuSlNTRSBUZXN0IFNlcml2Y2UwHhcN\n" +
        "MTExMTA3MTM1NTUyWhcNMzEwNzI1MTM1NTUyWjBPMQswCQYDVQQGEwJVUzENMAsG\n" +
        "A1UEChMESmF2YTEdMBsGA1UECxMUU3VuSlNTRSBUZXN0IFNlcml2Y2UxEjAQBgNV\n" +
        "BAMTCWxvY2FsaG9zdDBcMA0GCSqGSIb3DQEBAQUAA0sAMEgCQQC3Pb49OSPfOD2G\n" +
        "HSXFCFx1GJEZfqG9ZUf7xuIi/ra5dLjPGAaoY5QF2QOa8VnOriQCXDfyXHxsuRnE\n" +
        "OomxL7EVAgMBAAGjeDB2MAsGA1UdDwQEAwID6DAdBgNVHQ4EFgQUXNCJK3/dtCIc\n" +
        "xb+zlA/JINlvs/MwHwYDVR0jBBgwFoAUuXzV2d+nTAOu/Q4nWzGVbMfzdeEwJwYD\n" +
        "VR0lBCAwHgYIKwYBBQUHAwEGCCsGAQUFBwMCBggrBgEFBQcDAzANBgkqhkiG9w0B\n" +
        "AQQFAAOBgQB2qIDUxA2caMPpGtUACZAPRUtrGssCINIfItETXJZCx/cRuZ5sP4D9\n" +
        "N1acoNDn0hCULe3lhXAeTC9NZ97680yJzregQMV5wATjo1FGsKY30Ma+sc/nfzQW\n" +
        "+h/7RhYtoG0OTsiaDCvyhI6swkNJzSzrAccPY4+ZgU8HiDLzZTmM3Q==\n" +
        "-----END CERTIFICATE-----";

    // Private key in the format of PKCS#8, key size is 512 bits.
    static String targetPrivateKey =
        "MIIBVAIBADANBgkqhkiG9w0BAQEFAASCAT4wggE6AgEAAkEAtz2+PTkj3zg9hh0l\n" +
        "xQhcdRiRGX6hvWVH+8biIv62uXS4zxgGqGOUBdkDmvFZzq4kAlw38lx8bLkZxDqJ\n" +
        "sS+xFQIDAQABAkByx/5Oo2hQ/w2q4L8z+NTRlJ3vdl8iIDtC/4XPnfYfnGptnpG6\n" +
        "ZThQRvbMZiai0xHQPQMszvAHjZVme1eDl3EBAiEA3aKJHynPVCEJhpfCLWuMwX5J\n" +
        "1LntwJO7NTOyU5m8rPECIQDTpzn5X44r2rzWBDna/Sx7HW9IWCxNgUD2Eyi2nA7W\n" +
        "ZQIgJerEorw4aCAuzQPxiGu57PB6GRamAihEAtoRTBQlH0ECIQDN08FgTtnesgCU\n" +
        "DFYLLcw1CiHvc7fZw4neBDHCrC8NtQIgA8TOUkGnpCZlQ0KaI8KfKWI+vxFcgFnH\n" +
        "3fnqsTgaUs4=";

    static char passphrase[] = "passphrase".toCharArray();

    /*
     * Is the server ready to serve?
     */
    volatile static boolean serverReady = false;

    /*
     * Turn on SSL debugging?
     */
    static boolean debug = false;

    /*
     * Define the server side of the test.
     *
     * If the server prematurely exits, serverReady will be set to true
     * to avoid infinite hangs.
     */
    void doServerSide() throws Exception {
        SSLContext context = generateSSLContext(null, targetCertStr,
                                            targetPrivateKey);
        SSLServerSocketFactory sslssf = context.getServerSocketFactory();
        SSLServerSocket sslServerSocket =
            (SSLServerSocket)sslssf.createServerSocket(serverPort);
        serverPort = sslServerSocket.getLocalPort();

        /*
         * Signal Client, we're ready for his connect.
         */
        serverReady = true;

        SSLSocket sslSocket = (SSLSocket)sslServerSocket.accept();
        InputStream sslIS = sslSocket.getInputStream();
        OutputStream sslOS = sslSocket.getOutputStream();

        sslIS.read();
        sslOS.write('A');
        sslOS.flush();

        sslSocket.close();
    }

    /*
     * Define the client side of the test.
     *
     * If the server prematurely exits, serverReady will be set to true
     * to avoid infinite hangs.
     */
    void doClientSide() throws Exception {

        /*
         * Wait for server to get started.
         */
        while (!serverReady) {
            Thread.sleep(50);
        }

        SSLContext context = generateSSLContext(trustedCertStr, null, null);
        SSLSocketFactory sslsf = context.getSocketFactory();

        SSLSocket sslSocket =
            (SSLSocket)sslsf.createSocket("localhost", serverPort);

        // enable TLSv1.2 only
        sslSocket.setEnabledProtocols(new String[] {"TLSv1.2"});

        // enable a block cipher
        sslSocket.setEnabledCipherSuites(
            new String[] {"TLS_DHE_RSA_WITH_AES_128_CBC_SHA"});

        InputStream sslIS = sslSocket.getInputStream();
        OutputStream sslOS = sslSocket.getOutputStream();

        sslOS.write('B');
        sslOS.flush();
        sslIS.read();

        sslSocket.close();
    }

    /*
     * =============================================================
     * The remainder is just support stuff
     */
    private static String tmAlgorithm;        // trust manager

    private static void parseArguments(String[] args) {
        tmAlgorithm = args[0];
    }

    private static SSLContext generateSSLContext(String trustedCertStr,
            String keyCertStr, String keySpecStr) throws Exception {

        // generate certificate from cert string
        CertificateFactory cf = CertificateFactory.getInstance("X.509");

        // create a key store
        KeyStore ks = KeyStore.getInstance("JKS");
        ks.load(null, null);

        // import the trused cert
        Certificate trusedCert = null;
        ByteArrayInputStream is = null;
        if (trustedCertStr != null) {
            is = new ByteArrayInputStream(trustedCertStr.getBytes());
            trusedCert = cf.generateCertificate(is);
            is.close();

            ks.setCertificateEntry("RSA Export Signer", trusedCert);
        }

        if (keyCertStr != null) {
            // generate the private key.
            PKCS8EncodedKeySpec priKeySpec = new PKCS8EncodedKeySpec(
                                Base64.getMimeDecoder().decode(keySpecStr));
            KeyFactory kf = KeyFactory.getInstance("RSA");
            RSAPrivateKey priKey =
                    (RSAPrivateKey)kf.generatePrivate(priKeySpec);

            // generate certificate chain
            is = new ByteArrayInputStream(keyCertStr.getBytes());
            Certificate keyCert = cf.generateCertificate(is);
            is.close();

            Certificate[] chain = null;
            if (trusedCert != null) {
                chain = new Certificate[2];
                chain[0] = keyCert;
                chain[1] = trusedCert;
            } else {
                chain = new Certificate[1];
                chain[0] = keyCert;
            }

            // import the key entry.
            ks.setKeyEntry("Whatever", priKey, passphrase, chain);
        }

        // create SSL context
        TrustManagerFactory tmf = TrustManagerFactory.getInstance(tmAlgorithm);
        tmf.init(ks);

        SSLContext ctx = SSLContext.getInstance("TLS");
        if (keyCertStr != null && !keyCertStr.isEmpty()) {
            KeyManagerFactory kmf = KeyManagerFactory.getInstance("NewSunX509");
            kmf.init(ks, passphrase);

            ctx.init(kmf.getKeyManagers(), tmf.getTrustManagers(), null);
            ks = null;
        } else {
            ctx.init(null, tmf.getTrustManagers(), null);
        }

        return ctx;
    }


    // use any free port by default
    volatile int serverPort = 0;

    volatile Exception serverException = null;
    volatile Exception clientException = null;

    public static void main(String[] args) throws Exception {
        // reset the security property to make sure that the algorithms
        // and keys used in this test are not disabled.
        Security.setProperty("jdk.certpath.disabledAlgorithms", "MD2");

        if (debug)
            System.setProperty("javax.net.debug", "all");

        /*
         * Get the customized arguments.
         */
        parseArguments(args);

        /*
         * Start the tests.
         */
        new ShortRSAKey512();
    }

    Thread clientThread = null;
    Thread serverThread = null;

    /*
     * Primary constructor, used to drive remainder of the test.
     *
     * Fork off the other side, then do your work.
     */
    ShortRSAKey512() throws Exception {
        try {
            if (separateServerThread) {
                startServer(true);
                startClient(false);
            } else {
                startClient(true);
                startServer(false);
            }
        } catch (Exception e) {
            // swallow for now.  Show later
        }

        /*
         * Wait for other side to close down.
         */
        if (separateServerThread) {
            serverThread.join();
        } else {
            clientThread.join();
        }

        /*
         * When we get here, the test is pretty much over.
         * Which side threw the error?
         */
        Exception local;
        Exception remote;
        String whichRemote;

        if (separateServerThread) {
            remote = serverException;
            local = clientException;
            whichRemote = "server";
        } else {
            remote = clientException;
            local = serverException;
            whichRemote = "client";
        }

        /*
         * If both failed, return the curthread's exception, but also
         * print the remote side Exception
         */
        if ((local != null) && (remote != null)) {
            System.out.println(whichRemote + " also threw:");
            remote.printStackTrace();
            System.out.println();
            throw local;
        }

        if (remote != null) {
            throw remote;
        }

        if (local != null) {
            throw local;
        }
    }

    void startServer(boolean newThread) throws Exception {
        if (newThread) {
            serverThread = new Thread() {
                public void run() {
                    try {
                        doServerSide();
                    } catch (Exception e) {
                        /*
                         * Our server thread just died.
                         *
                         * Release the client, if not active already...
                         */
                        System.err.println("Server died...");
                        serverReady = true;
                        serverException = e;
                    }
                }
            };
            serverThread.start();
        } else {
            try {
                doServerSide();
            } catch (Exception e) {
                serverException = e;
            } finally {
                serverReady = true;
            }
        }
    }

    void startClient(boolean newThread) throws Exception {
        if (newThread) {
            clientThread = new Thread() {
                public void run() {
                    try {
                        doClientSide();
                    } catch (Exception e) {
                        /*
                         * Our client thread just died.
                         */
                        System.err.println("Client died...");
                        clientException = e;
                    }
                }
            };
            clientThread.start();
        } else {
            try {
                doClientSide();
            } catch (Exception e) {
                clientException = e;
            }
        }
    }
}

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