1 /*

     2  * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12  * version 2 for more details (a copy is included in the LICENSE file that

    13  * accompanied this code).

    14  *

    15  * You should have received a copy of the GNU General Public License version

    16  * 2 along with this work; if not, write to the Free Software Foundation,

    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    18  *

    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    20  * or visit www.oracle.com if you need additional information or have any

    21  * questions.

    22  */

    23 

    24 /* @test

    25  * @bug 8004502

    26  * @summary Sanity check to ensure that Kerberos cipher suites cannot be

    27  *   negotiated when running on a compact profile that does not include Kerberos

    28  */

    29 

    30 import java.net.*;

    31 import java.util.*;

    32 import javax.net.ssl.*;

    33 

    34 public class NoKerberos {

    35 

    36     static final List<String> KERBEROS_CIPHER_SUITES = Arrays.asList(

    37         "TLS_KRB5_WITH_RC4_128_SHA",

    38         "TLS_KRB5_WITH_RC4_128_MD5",

    39         "TLS_KRB5_WITH_3DES_EDE_CBC_SHA",

    40         "TLS_KRB5_WITH_3DES_EDE_CBC_MD5",

    41         "TLS_KRB5_WITH_DES_CBC_SHA",

    42         "TLS_KRB5_WITH_DES_CBC_MD5",

    43         "TLS_KRB5_EXPORT_WITH_RC4_40_SHA",

    44         "TLS_KRB5_EXPORT_WITH_RC4_40_MD5",

    45         "TLS_KRB5_EXPORT_WITH_DES_CBC_40_SHA",

    46         "TLS_KRB5_EXPORT_WITH_DES_CBC_40_MD5"

    47     );

    48 

    49     /**

    50      * Checks that the given array of supported cipher suites does not include

    51      * any Kerberos cipher suites.

    52      */

    53     static void checkNotSupported(String[] supportedSuites) {

    54         for (String suites: supportedSuites) {

    55             if (KERBEROS_CIPHER_SUITES.contains(suites)) {

    56                 throw new RuntimeException("Supported list of cipher suites " +

    57                     " should not include Kerberos cipher suites");

    58             }

    59         }

    60     }

    61 

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

    63         try {

    64             Class.forName("javax.security.auth.kerberos.KerberosPrincipal");

    65             System.out.println("Kerberos is present, nothing to test");

    66             return;

    67         } catch (ClassNotFoundException okay) { }

    68 

    69         // test SSLSocket

    70         try (Socket s = SSLSocketFactory.getDefault().createSocket()) {

    71             SSLSocket sslSocket = (SSLSocket)s;

    72 

    73             checkNotSupported(sslSocket.getSupportedCipherSuites());

    74 

    75             // attempt to enable each of the Kerberos cipher suites

    76             for (String kcs: KERBEROS_CIPHER_SUITES) {

    77                 String[] suites = { kcs };

    78                 try {

    79                     sslSocket.setEnabledCipherSuites(suites);

    80                     throw new RuntimeException("SSLSocket.setEnabledCipherSuitessuites allowed " +

    81                         kcs + " but Kerberos not supported");

    82                 } catch (IllegalArgumentException expected) { }

    83             }

    84         }

    85 

    86         // test SSLServerSocket

    87         try (ServerSocket ss = SSLServerSocketFactory.getDefault().createServerSocket()) {

    88             SSLServerSocket sslSocket = (SSLServerSocket)ss;

    89 

    90             checkNotSupported(sslSocket.getSupportedCipherSuites());

    91 

    92             // attempt to enable each of the Kerberos cipher suites

    93             for (String kcs: KERBEROS_CIPHER_SUITES) {

    94                 String[] suites = { kcs };

    95                 try {

    96                     sslSocket.setEnabledCipherSuites(suites);

    97                     throw new RuntimeException("SSLSocket.setEnabledCipherSuitessuites allowed " +

    98                         kcs + " but Kerberos not supported");

    99                 } catch (IllegalArgumentException expected) { }

   100             }

   101         }

   102     }

   103 }