1 /* 2 * Copyright (c) 2013, 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 21 * questions. 22 */ 23 24 /* 25 * @test 26 * @bug 8012900 27 * @library ../UTIL 28 * @build TestUtil 29 * @run main TestCICOWithGCMAndAAD 30 * @summary Test CipherInputStream/OutputStream with AES GCM mode with AAD. 31 * @author Valerie Peng 32 * @key randomness 33 */ 34 import java.io.*; 35 import java.security.*; 36 import java.util.*; 37 import javax.crypto.*; 38 39 public class TestCICOWithGCMAndAAD { 40 public static void main(String[] args) throws Exception { 41 //init Secret Key 42 KeyGenerator kg = KeyGenerator.getInstance("AES", "SunJCE"); 43 kg.init(128); 44 SecretKey key = kg.generateKey(); 45 46 //Do initialization of the plainText 47 byte[] plainText = new byte[700]; 48 Random rdm = new Random(); 49 rdm.nextBytes(plainText); 50 51 byte[] aad = new byte[128]; 52 rdm.nextBytes(aad); 53 byte[] aad2 = aad.clone(); 54 aad2[50]++; 55 56 Cipher encCipher = Cipher.getInstance("AES/GCM/NoPadding", "SunJCE"); 57 encCipher.init(Cipher.ENCRYPT_MODE, key); 58 encCipher.updateAAD(aad); 59 Cipher decCipher = Cipher.getInstance("AES/GCM/NoPadding", "SunJCE"); 60 decCipher.init(Cipher.DECRYPT_MODE, key, encCipher.getParameters()); 61 decCipher.updateAAD(aad); 62 63 byte[] recovered = test(encCipher, decCipher, plainText); 64 if (!Arrays.equals(plainText, recovered)) { 65 throw new Exception("sameAAD: diff check failed!"); 66 } else System.out.println("sameAAD: passed"); 67 68 encCipher.init(Cipher.ENCRYPT_MODE, key); 69 encCipher.updateAAD(aad2); 70 recovered = test(encCipher, decCipher, plainText); 71 if (recovered != null && recovered.length != 0) { 72 throw new Exception("diffAAD: no data should be returned!"); 73 } else System.out.println("diffAAD: passed"); 74 } 75 76 private static byte[] test(Cipher encCipher, Cipher decCipher, byte[] plainText) 77 throws Exception { 78 //init cipher streams 79 ByteArrayInputStream baInput = new ByteArrayInputStream(plainText); 80 CipherInputStream ciInput = new CipherInputStream(baInput, encCipher); 81 ByteArrayOutputStream baOutput = new ByteArrayOutputStream(); 82 CipherOutputStream ciOutput = new CipherOutputStream(baOutput, decCipher); 83 84 //do test 85 byte[] buffer = new byte[200]; 86 int len = ciInput.read(buffer); 87 System.out.println("read " + len + " bytes from input buffer"); 88 89 while (len != -1) { 90 ciOutput.write(buffer, 0, len); 91 System.out.println("wite " + len + " bytes to output buffer"); 92 len = ciInput.read(buffer); 93 if (len != -1) { 94 System.out.println("read " + len + " bytes from input buffer"); 95 } else { 96 System.out.println("finished reading"); 97 } 98 } 99 100 ciOutput.flush(); 101 ciInput.close(); 102 ciOutput.close(); 103 104 return baOutput.toByteArray(); 105 } 106 }