1 /*
2 * Copyright (c) 2012, 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 /**
26 * @author Tom Deneau
27 */
28
29 import javax.crypto.Cipher;
30 import javax.crypto.KeyGenerator;
31 import javax.crypto.SecretKey;
32 import javax.crypto.spec.IvParameterSpec;
33 import javax.crypto.spec.SecretKeySpec;
34 import java.security.AlgorithmParameters;
35
36 import java.util.Random;
37 import java.util.Arrays;
38
39 abstract public class TestAESBase {
40 int msgSize = Integer.getInteger("msgSize", 646);
41 boolean checkOutput = Boolean.getBoolean("checkOutput");
42 boolean noReinit = Boolean.getBoolean("noReinit");
43 int keySize = Integer.getInteger("keySize", 128);
44 String algorithm = System.getProperty("algorithm", "AES");
45 String mode = System.getProperty("mode", "CBC");
46 byte[] input;
47 byte[] encode;
48 byte[] expectedEncode;
49 byte[] decode;
50 byte[] expectedDecode;
51 Random random = new Random(0);
52 Cipher cipher;
53 Cipher dCipher;
54 String paddingStr = "PKCS5Padding";
55 AlgorithmParameters algParams;
56 SecretKey key;
57
58 static int numThreads = 0;
59 int threadId;
60 static synchronized int getThreadId() {
61 int id = numThreads;
62 numThreads++;
63 return id;
64 }
65
66 abstract public void run();
67
68 public void prepare() {
69 try {
70 System.out.println("\nalgorithm=" + algorithm + ", mode=" + mode + ", msgSize=" + msgSize + ", keySize=" + keySize + ", noReinit=" + noReinit + ", checkOutput=" + checkOutput);
71
72 int keyLenBytes = (keySize == 0 ? 16 : keySize/8);
73 byte keyBytes[] = new byte[keyLenBytes];
74 if (keySize == 128)
75 keyBytes = new byte[] {-8, -7, -6, -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7};
76 else
77 random.nextBytes(keyBytes);
78
79 key = new SecretKeySpec(keyBytes, algorithm);
80 if (threadId == 0) {
81 System.out.println("Algorithm: " + key.getAlgorithm() + "("
82 + key.getEncoded().length * 8 + "bit)");
83 }
84 input = new byte[msgSize];
85 for (int i=0; i<input.length; i++) {
86 input[i] = (byte) (i & 0xff);
87 }
88
89 cipher = Cipher.getInstance(algorithm + "/" + mode + "/" + paddingStr, "SunJCE");
90 dCipher = Cipher.getInstance(algorithm + "/" + mode + "/" + paddingStr, "SunJCE");
91
92 if (mode.equals("CBC")) {
93 int ivLen = (algorithm.equals("AES") ? 16 : algorithm.equals("DES") ? 8 : 0);
94 IvParameterSpec initVector = new IvParameterSpec(new byte[ivLen]);
95 cipher.init(Cipher.ENCRYPT_MODE, key, initVector);
96 } else {
97 algParams = cipher.getParameters();
98 cipher.init(Cipher.ENCRYPT_MODE, key, algParams);
99 }
100 algParams = cipher.getParameters();
101 dCipher.init(Cipher.DECRYPT_MODE, key, algParams);
102 if (threadId == 0) {
103 childShowCipher();
104 }
105
106 // do one encode and decode in preparation
107 // this will also create the encode buffer and decode buffer
108 encode = cipher.doFinal(input);
109 decode = dCipher.doFinal(encode);
110 if (checkOutput) {
111 expectedEncode = (byte[]) encode.clone();
112 expectedDecode = (byte[]) decode.clone();
113 showArray(key.getEncoded() , "key: ");
114 showArray(input, "input: ");
115 showArray(encode, "encode: ");
116 showArray(decode, "decode: ");
117 }
118 }
119 catch (Exception e) {
120 e.printStackTrace();
121 System.exit(1);
122 }
123 }
124
125 void showArray(byte b[], String name) {
126 System.out.format("%s [%d]: ", name, b.length);
127 for (int i=0; i<Math.min(b.length, 32); i++) {
128 System.out.format("%02x ", b[i] & 0xff);
129 }
130 System.out.println();
131 }
132
133 void compareArrays(byte b[], byte exp[]) {
134 if (b.length != exp.length) {
135 System.out.format("different lengths for actual and expected output arrays\n");
136 showArray(b, "test: ");
137 showArray(exp, "exp : ");
138 System.exit(1);
139 }
140 for (int i=0; i< exp.length; i++) {
141 if (b[i] != exp[i]) {
142 System.out.format("output error at index %d: got %02x, expected %02x\n", i, b[i] & 0xff, exp[i] & 0xff);
143 showArray(b, "test: ");
144 showArray(exp, "exp : ");
145 System.exit(1);
146 }
147 }
148 }
149
150
151 void showCipher(Cipher c, String kind) {
152 System.out.println(kind + " cipher provider: " + cipher.getProvider());
153 System.out.println(kind + " cipher algorithm: " + cipher.getAlgorithm());
154 }
155
156 abstract void childShowCipher();
157 }