1 /*
   2  * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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   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
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  23 
  24 /**
  25  * @test
  26  * @bug 6994008
  27  * @summary basic test for RSA/ECB/NoPadding cipher
  28  * @author Valerie Peng
  29  * @library ..
  30  */
  31 
  32 import javax.crypto.*;
  33 import java.io.*;
  34 import javax.crypto.spec.SecretKeySpec;
  35 import java.security.*;
  36 import java.util.*;
  37 
  38 public class TestRawRSACipher extends PKCS11Test {
  39 
  40     public void main(Provider p) throws Exception {
  41         try {
  42             Cipher.getInstance("RSA/ECB/NoPadding", p);
  43         } catch (GeneralSecurityException e) {
  44             System.out.println("Not supported by provider, skipping");
  45             return;
  46         }
  47 
  48         final int KEY_LEN = 1024;
  49         KeyPairGenerator kpGen = KeyPairGenerator.getInstance("RSA", p);
  50         kpGen.initialize(KEY_LEN);
  51         KeyPair kp = kpGen.generateKeyPair();
  52         Random random = new Random();
  53         byte[] plainText, cipherText, recoveredText;
  54         plainText = new byte[KEY_LEN/8];
  55         random.nextBytes(plainText);
  56         plainText[0] = 0; // to ensure that it's less than modulus
  57 
  58         Cipher c1 = Cipher.getInstance("RSA/ECB/NoPadding", p);
  59         Cipher c2 = Cipher.getInstance("RSA/ECB/NoPadding", "SunJCE");
  60 
  61         c1.init(Cipher.ENCRYPT_MODE, kp.getPublic());
  62         c2.init(Cipher.DECRYPT_MODE, kp.getPrivate());
  63 
  64         cipherText = c1.doFinal(plainText);
  65         recoveredText = c2.doFinal(cipherText);
  66         if (!Arrays.equals(plainText, recoveredText)) {
  67             throw new RuntimeException("E/D Test against SunJCE Failed!");
  68         }
  69 
  70         c2.init(Cipher.ENCRYPT_MODE, kp.getPublic());
  71         c1.init(Cipher.DECRYPT_MODE, kp.getPrivate());
  72         cipherText = c2.doFinal(plainText);
  73         recoveredText = c1.doFinal(cipherText);
  74         if (!Arrays.equals(plainText, recoveredText)) {
  75             throw new RuntimeException("D/E Test against SunJCE Failed!");
  76         }
  77 
  78         System.out.println("Test Passed");
  79     }
  80 
  81     public static void main(String[] args) throws Exception {
  82         main(new TestRawRSACipher());
  83     }
  84 }