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Java > Open Source Codes > org > objectweb > proactive > ext > security > crypto > FixedSecureRandom


1 /*
2 * ################################################################
3 *
4 * ProActive: The Java(TM) library for Parallel, Distributed,
5 * Concurrent computing with Security and Mobility
6 *
7 * Copyright (C) 1997-2002 INRIA/University of Nice-Sophia Antipolis
8 * Contact: proactive-support@inria.fr
9 *
10 * This library is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU Lesser General Public
12 * License as published by the Free Software Foundation; either
13 * version 2.1 of the License, or any later version.
14 *
15 * This library is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * Lesser General Public License for more details.
19 *
20 * You should have received a copy of the GNU Lesser General Public
21 * License along with this library; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
23 * USA
24 *
25 * Initial developer(s): The ProActive Team
26 * http://www.inria.fr/oasis/ProActive/contacts.html
27 * Contributor(s):
28 *
29 * ################################################################
30 */
31 package org.objectweb.proactive.ext.security.crypto;
32
33 import java.security.*;
34
35
36 class FixedSecureRandom extends SecureRandom {
37     byte[] seed = {
38         (byte) 0xaa, (byte) 0xfd, (byte) 0x12, (byte) 0xf6, (byte) 0x59,
39         (byte) 0xca, (byte) 0xe6, (byte) 0x34, (byte) 0x89, (byte) 0xb4,
40         (byte) 0x79, (byte) 0xe5, (byte) 0x07, (byte) 0x6d, (byte) 0xde,
41         (byte) 0xc2, (byte) 0xf0, (byte) 0x6c, (byte) 0xb5, (byte) 0x8f
42     };
43
44     public void nextBytes(byte[] bytes) {
45         int offset = 0;
46
47         while ((offset + seed.length) < bytes.length) {
48             System.arraycopy(seed, 0, bytes, offset, seed.length);
49             offset += seed.length;
50         }
51
52         System.arraycopy(seed, 0, bytes, offset, bytes.length - offset);
53     }
54 }
55
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