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