01: /*
02: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
03: *
04: * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
05: *
06: * The contents of this file are subject to the terms of either the GNU
07: * General Public License Version 2 only ("GPL") or the Common
08: * Development and Distribution License("CDDL") (collectively, the
09: * "License"). You may not use this file except in compliance with the
10: * License. You can obtain a copy of the License at
11: * http://www.netbeans.org/cddl-gplv2.html
12: * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the
13: * specific language governing permissions and limitations under the
14: * License. When distributing the software, include this License Header
15: * Notice in each file and include the License file at
16: * nbbuild/licenses/CDDL-GPL-2-CP. Sun designates this
17: * particular file as subject to the "Classpath" exception as provided
18: * by Sun in the GPL Version 2 section of the License file that
19: * accompanied this code. If applicable, add the following below the
20: * License Header, with the fields enclosed by brackets [] replaced by
21: * your own identifying information:
22: * "Portions Copyrighted [year] [name of copyright owner]"
23: *
24: * Contributor(s):
25: *
26: * The Original Software is NetBeans. The Initial Developer of the Original
27: * Software is Sun Microsystems, Inc. Portions Copyright 1997-2006 Sun
28: * Microsystems, Inc. All Rights Reserved.
29: *
30: * If you wish your version of this file to be governed by only the CDDL
31: * or only the GPL Version 2, indicate your decision by adding
32: * "[Contributor] elects to include this software in this distribution
33: * under the [CDDL or GPL Version 2] license." If you do not indicate a
34: * single choice of license, a recipient has the option to distribute
35: * your version of this file under either the CDDL, the GPL Version 2 or
36: * to extend the choice of license to its licensees as provided above.
37: * However, if you add GPL Version 2 code and therefore, elected the GPL
38: * Version 2 license, then the option applies only if the new code is
39: * made subject to such option by the copyright holder.
40: */
41:
42: package djava.security;
43:
44: import java.security.MessageDigest;
45: import org.netbeans.performance.Benchmark;
46:
47: // Results on a P6/1200 JDK 1.4.1rc for MD5 (rough numbers; magnitude is in bytes):
48: // 100 - 10us
49: // 1000 - 45us
50: // For SHA-1:
51: // 100 - 10-15us
52: // 1000 - 70-75us
53:
54: /**
55: * Benchmark measuring SHA-1 digestion.
56: *
57: * @author Jesse Glick
58: */
59: public class MessageDigestTest extends Benchmark {
60:
61: public static void main(String[] args) {
62: simpleRun(MessageDigestTest.class);
63: }
64:
65: public MessageDigestTest(String name) {
66: super (name, new Integer[] { new Integer(100),
67: new Integer(1000), new Integer(10000) });
68: }
69:
70: private byte[] buf;
71: private MessageDigest dig;
72:
73: protected void setUp() throws Exception {
74: int magnitude = ((Integer) getArgument()).intValue();
75: buf = new byte[magnitude];
76: for (int i = 0; i < magnitude; i++) {
77: buf[i] = (byte) i;
78: }
79: dig = MessageDigest.getInstance("SHA-1");
80: }
81:
82: public void testSHA1() throws Exception {
83: int count = getIterationCount();
84: for (int i = 0; i < count; i++) {
85: dig.reset();
86: dig.digest(buf);
87: }
88: }
89:
90: }
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