Java example source code file (MD2InTrustAnchor.java)

This example Java source code file (MD2InTrustAnchor.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, end, exception, inputstream, masga1uechmesmf2ytedmbsga1uecxmuu3vuslntrsbuzxn0ifnlcml2y2uwhhcn\\n, md2intrustanchor, net, network, outputstream, pkcs8encodedkeyspec, rsa, security, ssl, sslcontext, sslsocket, string, thread, util

The MD2InTrustAnchor.java Java example source code

/*
 * Copyright (c) 2011, 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.
 */

/*
 * @test
 * @bug 7113275
 * @summary compatibility issue with MD2 trust anchor and old X509TrustManager
 *
 *     SunJSSE does not support dynamic system properties, no way to re-use
 *     system properties in samevm/agentvm mode.
 * @run main/othervm MD2InTrustAnchor PKIX TLSv1.1
 * @run main/othervm MD2InTrustAnchor SunX509 TLSv1.1
 * @run main/othervm MD2InTrustAnchor PKIX TLSv1.2
 * @run main/othervm MD2InTrustAnchor SunX509 TLSv1.2
 */

import java.net.*;
import java.util.*;
import java.io.*;
import javax.net.ssl.*;
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 MD2InTrustAnchor {

    /*
     * =============================================================
     * 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;

    /*
     * Certificates and key used in the test.
     */

    // It's a trust anchor signed with MD2 hash function.
    static String trustedCertStr =
        "-----BEGIN CERTIFICATE-----\n" +
        "MIICkjCCAfugAwIBAgIBADANBgkqhkiG9w0BAQIFADA7MQswCQYDVQQGEwJVUzEN\n" +
        "MAsGA1UEChMESmF2YTEdMBsGA1UECxMUU3VuSlNTRSBUZXN0IFNlcml2Y2UwHhcN\n" +
        "MTExMTE4MTExNDA0WhcNMzIxMDI4MTExNDA0WjA7MQswCQYDVQQGEwJVUzENMAsG\n" +
        "A1UEChMESmF2YTEdMBsGA1UECxMUU3VuSlNTRSBUZXN0IFNlcml2Y2UwgZ8wDQYJ\n" +
        "KoZIhvcNAQEBBQADgY0AMIGJAoGBAPGyB9tugUGgxtdeqe0qJEwf9x1Gy4BOi1yR\n" +
        "wzDZY4H5LquvIfQ2V3J9X1MQENVsFvkvp65ZcFcy+ObOucXUUPFcd/iw2DVb5QXA\n" +
        "ffyeVqWD56GPi8Qe37wrJO3L6fBhN9oxp/BbdRLgjU81zx8qLEyPODhPMxV4OkcA\n" +
        "SDwZTSxxAgMBAAGjgaUwgaIwHQYDVR0OBBYEFLOAtr/YrYj9H04EDLA0fd14jisF\n" +
        "MGMGA1UdIwRcMFqAFLOAtr/YrYj9H04EDLA0fd14jisFoT+kPTA7MQswCQYDVQQG\n" +
        "EwJVUzENMAsGA1UEChMESmF2YTEdMBsGA1UECxMUU3VuSlNTRSBUZXN0IFNlcml2\n" +
        "Y2WCAQAwDwYDVR0TAQH/BAUwAwEB/zALBgNVHQ8EBAMCAQYwDQYJKoZIhvcNAQEC\n" +
        "BQADgYEAr8ExpXu/FTIRiMzPm0ubqwME4lniilwQUiEOD/4DbksNjEIcUyS2hIk1\n" +
        "qsmjJz3SHBnwhxl9dhJVwk2tZLkPGW86Zn0TPVRsttK4inTgCC9GFGeqQBdrU/uf\n" +
        "lipBzXWljrfbg4N/kK8m2LabtKUMMnGysM8rN0Fx2PYm5xxGvtM=\n" +
        "-----END CERTIFICATE-----";

    // The certificate issued by above trust anchor, signed with MD5
    static String targetCertStr =
        "-----BEGIN CERTIFICATE-----\n" +
        "MIICeDCCAeGgAwIBAgIBAjANBgkqhkiG9w0BAQQFADA7MQswCQYDVQQGEwJVUzEN\n" +
        "MAsGA1UEChMESmF2YTEdMBsGA1UECxMUU3VuSlNTRSBUZXN0IFNlcml2Y2UwHhcN\n" +
        "MTExMTE4MTExNDA2WhcNMzEwODA1MTExNDA2WjBPMQswCQYDVQQGEwJVUzENMAsG\n" +
        "A1UEChMESmF2YTEdMBsGA1UECxMUU3VuSlNTRSBUZXN0IFNlcml2Y2UxEjAQBgNV\n" +
        "BAMTCWxvY2FsaG9zdDCBnzANBgkqhkiG9w0BAQEFAAOBjQAwgYkCgYEAwDnm96mw\n" +
        "fXCH4bgXk1US0VcJsQVxUtGMyncAveMuzBzNzOmKZPeqyYX1Fuh4q+cuza03WTJd\n" +
        "G9nOkNr364e3Rn1aaHjCMcBmFflObnGnhhufNmIGYogJ9dJPmhUVPEVAXrMG+Ces\n" +
        "NKy2E8woGnLMrqu6yiuTClbLBPK8fWzTXrECAwEAAaN4MHYwCwYDVR0PBAQDAgPo\n" +
        "MB0GA1UdDgQWBBSdRrpocLPJXyGfDmMWJrcEf29WGDAfBgNVHSMEGDAWgBSzgLa/\n" +
        "2K2I/R9OBAywNH3deI4rBTAnBgNVHSUEIDAeBggrBgEFBQcDAQYIKwYBBQUHAwIG\n" +
        "CCsGAQUFBwMDMA0GCSqGSIb3DQEBBAUAA4GBAKJ71ZiCUykkJrCLYUxlFlhvUcr9\n" +
        "sTcOc67QdroW5f412NI15SXWDiley/JOasIiuIFPjaJBjOKoHOvTjG/snVu9wEgq\n" +
        "YNR8dPsO+NM8r79C6jO+Jx5fYAC7os2XxS75h3NX0ElJcbwIXGBJ6xRrsFh/BGYH\n" +
        "yvudOlX4BkVR0l1K\n" +
        "-----END CERTIFICATE-----";

    // Private key in the format of PKCS#8.
    static String targetPrivateKey =
        "MIICdwIBADANBgkqhkiG9w0BAQEFAASCAmEwggJdAgEAAoGBAMA55vepsH1wh+G4\n" +
        "F5NVEtFXCbEFcVLRjMp3AL3jLswczczpimT3qsmF9RboeKvnLs2tN1kyXRvZzpDa\n" +
        "9+uHt0Z9Wmh4wjHAZhX5Tm5xp4YbnzZiBmKICfXST5oVFTxFQF6zBvgnrDSsthPM\n" +
        "KBpyzK6rusorkwpWywTyvH1s016xAgMBAAECgYEAn9bF3oRkdDoBU0i/mcww5I+K\n" +
        "SH9tFt+WQbiojjz9ac49trkvUfu7MO1Jui2+QbrvaSkyj+HYGFOJd1wMsPXeB7ck\n" +
        "5mOIYV4uZK8jfNMSQ8v0tFEeIPp5lKdw1XnrQfSe+abo2eL5Lwso437Y4s3w37+H\n" +
        "aY3d76hR5qly+Ys+Ww0CQQDjeOoX89d/xhRqGXKjCx8ImE/dPmsI8O27cwtKrDYJ\n" +
        "6t0v/xryVIdvOYcRBvKnqEogOH7T1kI+LnWKUTJ2ehJ7AkEA2FVloPVqCehXcc7e\n" +
        "z3TDpU9w1B0JXklcV5HddYsRqp9RukN/VK4szKE7F1yoarIUtfE9Lr9082Jwyp3M\n" +
        "L11xwwJBAKsZ+Hur3x0tUY29No2Nf/pnFyvEF57SGwA0uPmiL8Ol9lpz+UDudDEl\n" +
        "hIM6Rqv12kwCMuQE9i7vo1o3WU3k5KECQEqhg1L49yD935TqiiFFpe0Ur9btQXse\n" +
        "kdXAA4d2d5zGI7q/aGD9SYU6phkUJSHR16VA2RuUfzMrpb+wmm1IrmMCQFtLoKRT\n" +
        "A5kokFb+E3Gplu29tJvCUpfwgBFRS+wmkvtiaU/tiyDcVgDO+An5DwedxxdVzqiE\n" +
        "njWHoKY3axDQ8OU=\n";


    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(trustedCertStr, targetCertStr,
                                            targetPrivateKey);
        SSLServerSocketFactory sslssf = context.getServerSocketFactory();
        SSLServerSocket sslServerSocket =
            (SSLServerSocket)sslssf.createServerSocket(serverPort);
        sslServerSocket.setNeedClientAuth(true);
        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, targetCertStr,
                                            targetPrivateKey);
        SSLSocketFactory sslsf = context.getSocketFactory();

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

        // enable the specified TLS protocol
        sslSocket.setEnabledProtocols(new String[] {tlsProtocol});

        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 String tlsProtocol;        // trust manager

    private static void parseArguments(String[] args) {
        tmAlgorithm = args[0];
        tlsProtocol = args[1];
    }

    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();

            // It's not allowed to send MD2 signed certificate to peer,
            // even it may be a trusted certificate. Then we will not
            // place the trusted certficate in the chain.
            Certificate[] 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(tlsProtocol);
        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 {
        if (debug)
            System.setProperty("javax.net.debug", "all");

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

        /*
         * Start the tests.
         */
        new MD2InTrustAnchor();
    }

    Thread clientThread = null;
    Thread serverThread = null;

    /*
     * Primary constructor, used to drive remainder of the test.
     *
     * Fork off the other side, then do your work.
     */
    MD2InTrustAnchor() 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;
            }
        }
    }
}