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