1 /*
   2  * Copyright (c) 2016, 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 import java.security.Provider;
  25 import java.security.Security;
  26 import java.security.MessageDigest;
  27 import java.security.NoSuchAlgorithmException;
  28 
  29 /*
  30  * @test
  31  * @bug 8156059
  32  * @summary Test expected NoSuchAlgorithmException is thrown
  33  *          if using SHA-3 with unsupported providers
  34  */
  35 
  36 public class UnsupportedProvider {
  37 
  38     public static void main(String args[]) {
  39         String[] algorithms = { "SHA3-224", "SHA3-256", "SHA3-384",
  40                 "SHA3-512" };
  41 
  42         for (Provider prov : Security.getProviders()) {
  43             for (String algo : algorithms) {
  44                 try {
  45                     String provName = prov.getName();
  46                     MessageDigest md = MessageDigest.getInstance(algo, prov);
  47 
  48                     if (!isSHA3Supported(provName)) {
  49                         throw new RuntimeException("SHA-3 is not supported by "
  50                                 + provName + " provider, but expected "
  51                                 + "NoSuchAlgorithmException is not thrown");
  52                     }
  53                 } catch (NoSuchAlgorithmException ex) {
  54                     if (isSHA3Supported(prov.getName())) {
  55                         throw new RuntimeException("SHA-3 should be supported "
  56                                 + "by " + prov.getName() + " provider, got"
  57                                 + " unexpected NoSuchAlgorithmException");
  58                     }
  59                     continue;
  60                 }
  61             }
  62         }
  63     }
  64 
  65     // Check if specific provider supports SHA-3 hash algorithms
  66     static boolean isSHA3Supported(String provName) {
  67         if ("SUN".equals(provName)) {
  68             return true;
  69         }
  70         return false;
  71     }
  72 }