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6894
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1 /*
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2 * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 *
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23 */
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24
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25 /**
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26 * @author Tom Deneau
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27 */
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28
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29 import javax.crypto.Cipher;
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30 import javax.crypto.KeyGenerator;
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31 import javax.crypto.SecretKey;
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32 import javax.crypto.spec.IvParameterSpec;
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33 import javax.crypto.spec.SecretKeySpec;
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34 import java.security.AlgorithmParameters;
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35
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36 import java.util.Random;
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37 import java.util.Arrays;
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38
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39 abstract public class TestAESBase {
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40 int msgSize = Integer.getInteger("msgSize", 646);
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41 boolean checkOutput = Boolean.getBoolean("checkOutput");
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42 boolean noReinit = Boolean.getBoolean("noReinit");
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43 int keySize = Integer.getInteger("keySize", 128);
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44 String algorithm = System.getProperty("algorithm", "AES");
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45 String mode = System.getProperty("mode", "CBC");
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46 byte[] input;
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47 byte[] encode;
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48 byte[] expectedEncode;
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49 byte[] decode;
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50 byte[] expectedDecode;
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51 Random random = new Random(0);
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52 Cipher cipher;
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53 Cipher dCipher;
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54 String paddingStr = "PKCS5Padding";
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55 AlgorithmParameters algParams;
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56 SecretKey key;
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57 int ivLen;
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58
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59 static int numThreads = 0;
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60 int threadId;
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61 static synchronized int getThreadId() {
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62 int id = numThreads;
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63 numThreads++;
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64 return id;
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65 }
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66
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67 abstract public void run();
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68
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69 public void prepare() {
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70 try {
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71 System.out.println("\nmsgSize=" + msgSize + ", key size=" + keySize + ", reInit=" + !noReinit + ", checkOutput=" + checkOutput);
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72
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73 int keyLenBytes = (keySize == 0 ? 16 : keySize/8);
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74 byte keyBytes[] = new byte[keyLenBytes];
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75 if (keySize == 128)
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76 keyBytes = new byte[] {-8, -7, -6, -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7};
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77 else
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78 random.nextBytes(keyBytes);
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79
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80 key = new SecretKeySpec(keyBytes, algorithm);
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81 if (threadId == 0) {
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82 System.out.println("Algorithm: " + key.getAlgorithm() + "("
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83 + key.getEncoded().length * 8 + "bit)");
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84 }
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85 input = new byte[msgSize];
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86 for (int i=0; i<input.length; i++) {
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87 input[i] = (byte) (i & 0xff);
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88 }
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89
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90 cipher = Cipher.getInstance(algorithm + "/" + mode + "/" + paddingStr, "SunJCE");
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91 dCipher = Cipher.getInstance(algorithm + "/" + mode + "/" + paddingStr, "SunJCE");
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92
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93 ivLen = (algorithm.equals("AES") ? 16 : algorithm.equals("DES") ? 8 : 0);
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94 IvParameterSpec initVector = new IvParameterSpec(new byte[ivLen]);
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95
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96 cipher.init(Cipher.ENCRYPT_MODE, key, initVector);
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97 algParams = cipher.getParameters();
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98 dCipher.init(Cipher.DECRYPT_MODE, key, algParams);
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99 if (threadId == 0) {
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100 childShowCipher();
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101 }
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102
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103 // do one encode and decode in preparation
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104 // this will also create the encode buffer and decode buffer
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105 encode = cipher.doFinal(input);
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106 decode = dCipher.doFinal(encode);
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107 if (checkOutput) {
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108 expectedEncode = (byte[]) encode.clone();
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109 expectedDecode = (byte[]) decode.clone();
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110 showArray(key.getEncoded() , "key: ");
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111 showArray(input, "input: ");
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112 showArray(encode, "encode: ");
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113 showArray(decode, "decode: ");
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114 }
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115 }
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116 catch (Exception e) {
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117 e.printStackTrace();
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118 System.exit(1);
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119 }
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120 }
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121
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122 void showArray(byte b[], String name) {
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123 System.out.format("%s [%d]: ", name, b.length);
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124 for (int i=0; i<Math.min(b.length, 32); i++) {
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125 System.out.format("%02x ", b[i] & 0xff);
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126 }
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127 System.out.println();
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128 }
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129
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130 void compareArrays(byte b[], byte exp[]) {
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131 if (b.length != exp.length) {
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132 System.out.format("different lengths for actual and expected output arrays\n");
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133 showArray(b, "test: ");
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134 showArray(exp, "exp : ");
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135 System.exit(1);
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136 }
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137 for (int i=0; i< exp.length; i++) {
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138 if (b[i] != exp[i]) {
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139 System.out.format("output error at index %d: got %02x, expected %02x\n", i, b[i] & 0xff, exp[i] & 0xff);
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140 showArray(b, "test: ");
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141 showArray(exp, "exp : ");
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142 System.exit(1);
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143 }
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144 }
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145 }
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146
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147
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148 void showCipher(Cipher c, String kind) {
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149 System.out.println(kind + " cipher provider: " + cipher.getProvider());
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150 System.out.println(kind + " cipher algorithm: " + cipher.getAlgorithm());
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151 }
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152
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153 abstract void childShowCipher();
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154 }
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