1 /*
   2  * Copyright (c) 2011, 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 /*
  25  * @test
  26  * @bug 6994008
  27  * @summary basic test for RSA/ECB/NoPadding cipher
  28  * @author Valerie Peng
  29  * @library ..
  30  * @key randomness
  31  * @modules jdk.crypto.token
  32  * @run main/othervm TestRawRSACipher
  33  * @run main/othervm TestRawRSACipher sm
  34  */
  35 
  36 import java.security.GeneralSecurityException;
  37 import java.security.KeyPair;
  38 import java.security.KeyPairGenerator;
  39 import java.security.Provider;
  40 import java.util.Arrays;
  41 import java.util.Random;
  42 import javax.crypto.Cipher;
  43 
  44 public class TestRawRSACipher extends PKCS11Test {
  45 
  46     @Override
  47     public void main(Provider p) throws Exception {
  48         try {
  49             Cipher.getInstance("RSA/ECB/NoPadding", p);
  50         } catch (GeneralSecurityException e) {
  51             System.out.println("Not supported by provider, skipping");
  52             return;
  53         }
  54 
  55         final int KEY_LEN = 1024;
  56         KeyPairGenerator kpGen = KeyPairGenerator.getInstance("RSA", p);
  57         kpGen.initialize(KEY_LEN);
  58         KeyPair kp = kpGen.generateKeyPair();
  59         Random random = new Random();
  60         byte[] plainText, cipherText, recoveredText;
  61         plainText = new byte[KEY_LEN/8];
  62         random.nextBytes(plainText);
  63         plainText[0] = 0; // to ensure that it's less than modulus
  64 
  65         Cipher c1 = Cipher.getInstance("RSA/ECB/NoPadding", p);
  66         Cipher c2 = Cipher.getInstance("RSA/ECB/NoPadding", "SunJCE");
  67 
  68         c1.init(Cipher.ENCRYPT_MODE, kp.getPublic());
  69         c2.init(Cipher.DECRYPT_MODE, kp.getPrivate());
  70 
  71         cipherText = c1.doFinal(plainText);
  72         recoveredText = c2.doFinal(cipherText);
  73         if (!Arrays.equals(plainText, recoveredText)) {
  74             throw new RuntimeException("E/D Test against SunJCE Failed!");
  75         }
  76 
  77         c2.init(Cipher.ENCRYPT_MODE, kp.getPublic());
  78         c1.init(Cipher.DECRYPT_MODE, kp.getPrivate());
  79         cipherText = c2.doFinal(plainText);
  80         recoveredText = c1.doFinal(cipherText);
  81         if (!Arrays.equals(plainText, recoveredText)) {
  82             throw new RuntimeException("D/E Test against SunJCE Failed!");
  83         }
  84 
  85         System.out.println("Test Passed");
  86     }
  87 
  88     public static void main(String[] args) throws Exception {
  89         main(new TestRawRSACipher(), args);
  90     }
  91 }