J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2004-2007 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 20 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 21 | * have any questions. |
| 22 | */ |
| 23 | |
| 24 | /* |
| 25 | * @test |
| 26 | * @bug 4979126 |
| 27 | * @summary Ensure update()/doFinal() matches javadoc description |
| 28 | * when ShortBufferException is thrown. |
| 29 | * @author Valerie Peng |
| 30 | */ |
| 31 | import java.util.Arrays; |
| 32 | import java.security.*; |
| 33 | import java.security.spec.*; |
| 34 | import java.math.BigInteger; |
| 35 | import javax.crypto.*; |
| 36 | import javax.crypto.spec.*; |
| 37 | import java.security.Provider; |
| 38 | import com.sun.crypto.provider.*; |
| 39 | |
| 40 | public class TestShortBuffer { |
| 41 | private static final String ALGO = "AES"; |
| 42 | private static final String[] MODES = { |
| 43 | "ECB", "CBC", "PCBC", "CFB16", "OFB8" |
| 44 | }; |
| 45 | private static final SecretKey KEY = |
| 46 | new SecretKeySpec(new byte[16], ALGO); |
| 47 | private static byte[] SHORTBUFFER = new byte[1]; |
| 48 | |
| 49 | private static final byte[] PLAINTEXT = new byte[30]; |
| 50 | static { |
| 51 | PLAINTEXT[0] = (byte)0x15; |
| 52 | }; |
| 53 | private Cipher ci = null; |
| 54 | private byte[] in = null; |
| 55 | private byte[] expected = null; |
| 56 | private byte[] out = null; |
| 57 | private int outOffset = 0; |
| 58 | |
| 59 | private TestShortBuffer(Cipher ci) { |
| 60 | this.ci = ci; |
| 61 | } |
| 62 | |
| 63 | private void init(byte[] in, byte[] expected) { |
| 64 | this.in = (byte[]) in.clone(); |
| 65 | this.expected = (byte[]) expected.clone(); |
| 66 | this.out = new byte[expected.length]; |
| 67 | this.outOffset = 0; |
| 68 | } |
| 69 | |
| 70 | private static void runTest() throws Exception { |
| 71 | // Initialization |
| 72 | for (int i = 0; i < MODES.length; i++) { |
| 73 | System.out.println("===== TESTING MODE " + MODES[i] + " ====="); |
| 74 | Cipher ci = Cipher.getInstance(ALGO+"/"+MODES[i]+"/PKCS5Padding", |
| 75 | "SunJCE"); |
| 76 | TestShortBuffer test = null; |
| 77 | int stored = 0; |
| 78 | AlgorithmParameters params = null; |
| 79 | byte[] cipherText = null; |
| 80 | byte[] shortBuffer = new byte[8]; |
| 81 | for (int k = 0; k < 2; k++) { |
| 82 | byte[] expected = null; |
| 83 | switch (k) { |
| 84 | case 0: // Encryption |
| 85 | System.out.println("Testing with Cipher.ENCRYPT_MODE"); |
| 86 | ci.init(Cipher.ENCRYPT_MODE, KEY); |
| 87 | cipherText = ci.doFinal(PLAINTEXT); |
| 88 | test = new TestShortBuffer(ci); |
| 89 | test.init(PLAINTEXT, cipherText); |
| 90 | params = ci.getParameters(); |
| 91 | break; |
| 92 | case 1: // Decryption |
| 93 | System.out.println("Testing with Cipher.DECRYPT_MODE"); |
| 94 | ci.init(Cipher.DECRYPT_MODE, KEY, params); |
| 95 | test = new TestShortBuffer(ci); |
| 96 | test.init(cipherText, PLAINTEXT); |
| 97 | break; |
| 98 | } |
| 99 | int offset = 2 + i*5; |
| 100 | test.testUpdate(); |
| 101 | test.testUpdateWithUpdate(offset); |
| 102 | test.testDoFinal(); |
| 103 | test.testDoFinalWithUpdate(offset); |
| 104 | } |
| 105 | } |
| 106 | } |
| 107 | |
| 108 | private void checkOutput() throws Exception { |
| 109 | if (!Arrays.equals(out, expected)) { |
| 110 | System.out.println("got: " + new BigInteger(out)); |
| 111 | System.out.println("expect: " + new BigInteger(expected)); |
| 112 | throw new Exception("Generated different outputs"); |
| 113 | } |
| 114 | } |
| 115 | private void testUpdate() throws Exception { |
| 116 | outOffset = 0; |
| 117 | int stored = 0; |
| 118 | try { |
| 119 | stored = ci.update(in, 0, in.length, SHORTBUFFER); |
| 120 | throw new Exception("Should throw ShortBufferException!"); |
| 121 | } catch (ShortBufferException sbe) { |
| 122 | System.out.println("Expected SBE thrown...."); |
| 123 | // retry with a large-enough buffer according to javadoc |
| 124 | stored = ci.update(in, 0, in.length, out); |
| 125 | stored = ci.doFinal(out, outOffset += stored); |
| 126 | if (out.length != (stored + outOffset)) { |
| 127 | throw new Exception("Wrong number of output bytes"); |
| 128 | } |
| 129 | } |
| 130 | checkOutput(); |
| 131 | } |
| 132 | private void testUpdateWithUpdate(int offset) throws Exception { |
| 133 | outOffset = 0; |
| 134 | int stored = 0; |
| 135 | byte[] out1 = ci.update(in, 0, offset); |
| 136 | if (out1 != null) { |
| 137 | System.arraycopy(out1, 0, out, 0, out1.length); |
| 138 | outOffset += out1.length; |
| 139 | } |
| 140 | try { |
| 141 | stored = ci.update(in, offset, in.length-offset, SHORTBUFFER); |
| 142 | throw new Exception("Should throw ShortBufferException!"); |
| 143 | } catch (ShortBufferException sbe) { |
| 144 | System.out.println("Expected SBE thrown...."); |
| 145 | // retry with a large-enough buffer according to javadoc |
| 146 | stored = ci.update(in, offset, in.length-offset, |
| 147 | out, outOffset); |
| 148 | stored = ci.doFinal(out, outOffset+=stored); |
| 149 | if (out.length != (stored + outOffset)) { |
| 150 | throw new Exception("Wrong number of output bytes"); |
| 151 | } |
| 152 | } |
| 153 | checkOutput(); |
| 154 | } |
| 155 | private void testDoFinal() throws Exception { |
| 156 | outOffset = 0; |
| 157 | int stored = 0; |
| 158 | try { |
| 159 | stored = ci.doFinal(in, 0, in.length, SHORTBUFFER); |
| 160 | throw new Exception("Should throw ShortBufferException!"); |
| 161 | } catch (ShortBufferException sbe) { |
| 162 | System.out.println("Expected SBE thrown...."); |
| 163 | // retry with a large-enough buffer according to javadoc |
| 164 | stored = ci.doFinal(in, 0, in.length, out, 0); |
| 165 | if (out.length != stored) { |
| 166 | throw new Exception("Wrong number of output bytes"); |
| 167 | } |
| 168 | } |
| 169 | checkOutput(); |
| 170 | } |
| 171 | |
| 172 | private void testDoFinalWithUpdate(int offset) throws Exception { |
| 173 | outOffset = 0; |
| 174 | int stored = 0; |
| 175 | byte[] out1 = ci.update(in, 0, offset); |
| 176 | if (out1 != null) { |
| 177 | System.arraycopy(out1, 0, out, 0, out1.length); |
| 178 | outOffset += out1.length; |
| 179 | } |
| 180 | try { |
| 181 | stored = ci.doFinal(in, offset, in.length-offset, SHORTBUFFER); |
| 182 | throw new Exception("Should throw ShortBufferException!"); |
| 183 | } catch (ShortBufferException sbe) { |
| 184 | System.out.println("Expected SBE thrown...."); |
| 185 | // retry with a large-enough buffer according to javadoc |
| 186 | stored = ci.doFinal(in, offset, in.length-offset, |
| 187 | out, outOffset); |
| 188 | if (out.length != (stored + outOffset)) { |
| 189 | throw new Exception("Wrong number of output bytes"); |
| 190 | } |
| 191 | } |
| 192 | checkOutput(); |
| 193 | } |
| 194 | public static void main(String[] argv) throws Exception { |
| 195 | runTest(); |
| 196 | System.out.println("Test Passed"); |
| 197 | } |
| 198 | } |