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
32import java.io.*;
33import java.security.*;
34import java.util.*;
35import javax.crypto.*;
36import javax.crypto.spec.*;
37
38public 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}
123