1 /*
   2  * Copyright (c) 2014, 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 8014374
  27  * @summary Test CipherInputStream/OutputStream func w/ GCM mode and AAD.
  28  * @author Valerie Peng
  29  * @key randomness
  30  */
  31 
  32 import java.io.*;
  33 import java.security.*;
  34 import java.util.*;
  35 import javax.crypto.*;
  36 import javax.crypto.spec.*;
  37 
  38 public class TestCICOWithGCMAndAAD extends UcryptoTest {
  39     public static void main(String[] args) throws Exception {
  40         main(new TestCICOWithGCMAndAAD(), null);
  41     }
  42 
  43     public void doTest(Provider p) throws Exception {
  44         // check if GCM support exists
  45         try {
  46             Cipher.getInstance("AES/GCM/NoPadding", p);
  47         } catch (NoSuchAlgorithmException nsae) {
  48             System.out.println("Skipping Test due to no GCM support");
  49             return;
  50         }
  51 
  52         Random rdm = new Random();
  53 
  54         //init Secret Key
  55         byte[] keyValue = new byte[16];
  56         rdm.nextBytes(keyValue);
  57         SecretKey key = new SecretKeySpec(keyValue, "AES");
  58 
  59         //Do initialization of the plainText
  60         byte[] plainText = new byte[400];
  61         rdm.nextBytes(plainText);
  62 
  63         byte[] aad = new byte[128];
  64         rdm.nextBytes(aad);
  65         byte[] aad2 = aad.clone();
  66         aad2[50]++;
  67 
  68         byte[] iv = new byte[16];
  69         rdm.nextBytes(iv);
  70 
  71         GCMParameterSpec spec = new GCMParameterSpec(128, iv);
  72         Cipher encCipher = Cipher.getInstance("AES/GCM/NoPadding", p);
  73         encCipher.init(Cipher.ENCRYPT_MODE, key, spec);
  74         encCipher.updateAAD(aad);
  75         Cipher decCipher = Cipher.getInstance("AES/GCM/NoPadding", p);
  76         decCipher.init(Cipher.DECRYPT_MODE, key, spec);  //encCipher.getParameters());
  77         decCipher.updateAAD(aad);
  78 
  79         byte[] recovered = test(encCipher, decCipher, plainText);
  80         if (!Arrays.equals(plainText, recovered)) {
  81             throw new Exception("sameAAD: diff check failed!");
  82         } else System.out.println("sameAAD: passed");
  83 
  84         encCipher.init(Cipher.ENCRYPT_MODE, key);
  85         encCipher.updateAAD(aad2);
  86         recovered = test(encCipher, decCipher, plainText);
  87         if (recovered != null && recovered.length != 0) {
  88             throw new Exception("diffAAD: no data should be returned!");
  89         } else System.out.println("diffAAD: passed");
  90    }
  91 
  92    private static byte[] test(Cipher encCipher, Cipher decCipher, byte[] plainText)
  93             throws Exception {
  94         //init cipher streams
  95         ByteArrayInputStream baInput = new ByteArrayInputStream(plainText);
  96         CipherInputStream ciInput = new CipherInputStream(baInput, encCipher);
  97         ByteArrayOutputStream baOutput = new ByteArrayOutputStream();
  98         CipherOutputStream ciOutput = new CipherOutputStream(baOutput, decCipher);
  99 
 100         //do test
 101         byte[] buffer = new byte[200];
 102         int len = ciInput.read(buffer);
 103         System.out.println("read " + len + " bytes from input buffer");
 104 
 105         while (len != -1) {
 106             ciOutput.write(buffer, 0, len);
 107             System.out.println("wite " + len + " bytes to output buffer");
 108             len = ciInput.read(buffer);
 109             if (len != -1) {
 110                 System.out.println("read " + len + " bytes from input buffer");
 111             } else {
 112                 System.out.println("finished reading");
 113             }
 114         }
 115 
 116         ciOutput.flush();
 117         ciInput.close();
 118         ciOutput.close();
 119 
 120         return baOutput.toByteArray();
 121     }
 122 }