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 import java.io.ByteArrayInputStream;
25 import java.io.ByteArrayOutputStream;
26 import java.io.IOException;
27 import java.security.InvalidAlgorithmParameterException;
28 import java.security.InvalidKeyException;
29 import java.security.NoSuchAlgorithmException;
30 import java.security.NoSuchProviderException;
31 import java.security.spec.AlgorithmParameterSpec;
32 import java.util.Random;
33 import javax.crypto.Cipher;
34 import javax.crypto.CipherInputStream;
35 import javax.crypto.CipherOutputStream;
36 import javax.crypto.KeyGenerator;
37 import javax.crypto.NoSuchPaddingException;
38 import javax.crypto.SecretKey;
39 import javax.crypto.spec.IvParameterSpec;
40
41 /**
42 * @test
43 * @bug 8043836
44 * @summary Test AES ciphers with different modes and padding schemes (ECB mode
45 * doesn't use IV). The test tries 3 different read methods of
46 * CipherInputStream.
47 * @key randomness
48 */
49 public class CICO {
50 private static final String ALGORITHM = "aEs";
51 private static final String[] MODES = { "PCBC", "ECb", "cbC", "cFB",
52 "cFB24", "cFB32", "Cfb40", "CFB72", "OfB", "OfB20", "OfB48",
53 "OfB56", "OFB64", "OFB112", "CFB112", "pCbC" };
54 private static final String[] PADDING = { "noPadding", "pkcs5padding" };
55 private static final String PROVIDER = "SunJCE";
56 private static final int NREADS = 3;
57 private static final int KEY_LENGTH = 128;
58
59 private final byte[] plainText = new byte[1600000];
60
61
62 public static void main(String argv[]) throws Exception {
63 CICO test = new CICO();
64 for (String mode : MODES) {
65 for (String pad : PADDING) {
66 for (int m = 0; m < NREADS; m++) {
67 test.runTest(ALGORITHM, mode, pad, m);
68 }
69 }
70 }
71 }
72
73 public void runTest(String algo, String mo, String pad, int whichRead) throws Exception {
74 Cipher ci1 = null;
75 Cipher ci2 = null;
76 byte[] iv = null;
77 AlgorithmParameterSpec aps = null;
78 SecretKey key = null;
79
80 try {
81 // Do initialization
82 Random rdm = new Random();
83 rdm.nextBytes(plainText);
84 KeyGenerator kg = KeyGenerator.getInstance(algo, PROVIDER);
85 if (!kg.getAlgorithm().equals(algo)) {
86 throw new RuntimeException("Unexpected algorithm <"
87 + kg.getAlgorithm() + ">, expected value is <" + algo
88 + ">");
89 }
90
91 kg.init(KEY_LENGTH);
92 key = kg.generateKey();
93
94 ci1 = Cipher.getInstance(algo + "/" + mo + "/" + pad, PROVIDER);
95
96 if (mo.equalsIgnoreCase("ECB")) {
97 ci1.init(Cipher.ENCRYPT_MODE, key);
98 } else {
99 ci1.init(Cipher.ENCRYPT_MODE, key, aps);
100 }
101
102 if (!mo.equalsIgnoreCase("ECB")) {
103 iv = ci1.getIV();
104 aps = new IvParameterSpec(iv);
105 } else {
106 aps = null;
107 }
108
109 ci2 = Cipher.getInstance(algo + "/" + mo + "/" + pad, PROVIDER);
110 if (mo.equalsIgnoreCase("ECB")) {
111 ci2.init(Cipher.DECRYPT_MODE, key);
112 } else {
113 ci2.init(Cipher.DECRYPT_MODE, key, aps);
114 }
115
116 ByteArrayInputStream baInput = new ByteArrayInputStream(plainText);
117 ByteArrayOutputStream baOutput = new ByteArrayOutputStream();
118 try (CipherInputStream ciInput = new CipherInputStream(baInput, ci1);
119 CipherOutputStream ciOutput = new CipherOutputStream(
120 baOutput, ci2)) {
121 // According to specification, CipherInputStream does not support the
122 // mark and reset methods
123 if (ciInput.markSupported()) {
124 throw new RuntimeException(
125 "CipherInputStream unexpectedly supports the mark and reset methods");
126 }
127
128 // Read from the input and write to the output using 2 types
129 // of buffering : byte[] and int
130 switch (whichRead) {
131 case 0:
132 int buffer0 = ciInput.read();
133 while (buffer0 != -1) {
134 ciOutput.write(buffer0);
135 buffer0 = ciInput.read();
136 }
137 break;
138 case 1:
139 byte[] buffer1 = new byte[20];
140 int len1 = ciInput.read(buffer1);
141 while (len1 != -1) {
142 ciOutput.write(buffer1, 0, len1);
143 len1 = ciInput.read(buffer1);
144 }
145 break;
146 case NREADS - 1:
147 byte[] buffer2 = new byte[ci1
148 .getOutputSize(plainText.length)];
149 int offset2 = 0;
150 int len2 = 0;
151 while (len2 != -1) {
152 len2 = ciInput.read(buffer2, offset2, buffer2.length
153 - offset2);
154 offset2 += len2;
155 }
156 ciOutput.write(buffer2, 0, buffer2.length);
157 break;
158 }
159 }
160
161 // Get the output
162 byte[] recoveredText = new byte[baOutput.size()];
163 recoveredText = baOutput.toByteArray();
164 if (!java.util.Arrays.equals(plainText, recoveredText)) {
165 throw new RuntimeException(
166 "Original text is not equal with recovered text, with "
167 + algo + "/" + mo + "/" + pad + "/" + whichRead);
168 }
169
170 // Compare input and output
171
172 } catch (NoSuchAlgorithmException e) {
173 //OFB20 is for negative testing
174 if (!mo.equalsIgnoreCase("OFB20")) {
175 System.out.println("Unexpected NoSuchAlgorithmException with "
176 + algo + "/" + mo + "/" + pad + "/" + whichRead);
177 throw new RuntimeException("Test failed!");
178 }
179 } catch (IOException | NoSuchProviderException | NoSuchPaddingException
180 | InvalidKeyException | InvalidAlgorithmParameterException e) {
181 System.out.println("Unexpected Exception with "
182 + algo + "/" + mo + "/" + pad + "/" + whichRead);
183 System.out.println("Test failed!");
184 throw e;
185 }
186 }
187 }