J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2003-2007 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 4844847 |
| 27 | * @summary Test the Cipher.update/doFinal(ByteBuffer, ByteBuffer) methods |
| 28 | * @author Andreas Sterbenz |
| 29 | */ |
| 30 | |
| 31 | import java.util.*; |
| 32 | import java.nio.*; |
| 33 | |
| 34 | import java.security.*; |
| 35 | |
| 36 | import javax.crypto.*; |
| 37 | import javax.crypto.spec.*; |
| 38 | |
| 39 | public class ByteBuffers { |
| 40 | |
| 41 | public static void main(String[] args) throws Exception { |
| 42 | Provider p = Security.getProvider("SunJCE"); |
| 43 | Random random = new Random(); |
| 44 | int n = 10 * 1024; |
| 45 | byte[] t = new byte[n]; |
| 46 | random.nextBytes(t); |
| 47 | |
| 48 | byte[] keyBytes = new byte[8]; |
| 49 | random.nextBytes(keyBytes); |
| 50 | SecretKey key = new SecretKeySpec(keyBytes, "DES"); |
| 51 | |
| 52 | Cipher cipher = Cipher.getInstance("DES/ECB/NoPadding"); |
| 53 | cipher.init(Cipher.ENCRYPT_MODE, key); |
| 54 | |
| 55 | byte[] outBytes = cipher.doFinal(t); |
| 56 | |
| 57 | // create ByteBuffers for input (i1, i2, i3) and fill them |
| 58 | ByteBuffer i0 = ByteBuffer.allocate(n + 256); |
| 59 | i0.position(random.nextInt(256)); |
| 60 | i0.limit(i0.position() + n); |
| 61 | ByteBuffer i1 = i0.slice(); |
| 62 | i1.put(t); |
| 63 | |
| 64 | ByteBuffer i2 = ByteBuffer.allocateDirect(t.length); |
| 65 | i2.put(t); |
| 66 | |
| 67 | i1.clear(); |
| 68 | ByteBuffer i3 = i1.asReadOnlyBuffer(); |
| 69 | |
| 70 | ByteBuffer o0 = ByteBuffer.allocate(n + 512); |
| 71 | o0.position(random.nextInt(256)); |
| 72 | o0.limit(o0.position() + n + 256); |
| 73 | ByteBuffer o1 = o0.slice(); |
| 74 | |
| 75 | ByteBuffer o2 = ByteBuffer.allocateDirect(t.length + 256); |
| 76 | |
| 77 | crypt(cipher, i1, o1, outBytes, random); |
| 78 | crypt(cipher, i2, o1, outBytes, random); |
| 79 | crypt(cipher, i3, o1, outBytes, random); |
| 80 | crypt(cipher, i1, o2, outBytes, random); |
| 81 | crypt(cipher, i2, o2, outBytes, random); |
| 82 | crypt(cipher, i3, o2, outBytes, random); |
| 83 | |
| 84 | System.out.println("All tests passed"); |
| 85 | } |
| 86 | |
| 87 | private static void crypt(Cipher cipher, ByteBuffer in, ByteBuffer out, byte[] outBytes, Random random) throws Exception { |
| 88 | in.clear(); |
| 89 | out.clear(); |
| 90 | out.put(new byte[out.remaining()]); |
| 91 | out.clear(); |
| 92 | int lim = in.limit(); |
| 93 | in.limit(random.nextInt(lim)); |
| 94 | cipher.update(in, out); |
| 95 | if (in.hasRemaining()) { |
| 96 | throw new Exception("Buffer not consumed"); |
| 97 | } |
| 98 | in.limit(lim); |
| 99 | cipher.doFinal(in, out); |
| 100 | if (in.hasRemaining()) { |
| 101 | throw new Exception("Buffer not consumed"); |
| 102 | } |
| 103 | out.flip(); |
| 104 | byte[] b = new byte[out.remaining()]; |
| 105 | out.get(b); |
| 106 | if (Arrays.equals(outBytes, b) == false) { |
| 107 | throw new Exception("Encryption output mismatch"); |
| 108 | } |
| 109 | } |
| 110 | } |