1   /**
2    * Copyright (c) 2000-2007 Liferay, Inc. All rights reserved.
3    *
4    * Permission is hereby granted, free of charge, to any person obtaining a copy
5    * of this software and associated documentation files (the "Software"), to deal
6    * in the Software without restriction, including without limitation the rights
7    * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8    * copies of the Software, and to permit persons to whom the Software is
9    * furnished to do so, subject to the following conditions:
10   *
11   * The above copyright notice and this permission notice shall be included in
12   * all copies or substantial portions of the Software.
13   *
14   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20   * SOFTWARE.
21   */
22  
23  package com.liferay.portal.kernel.util;
24  
25  import com.liferay.portal.kernel.log.Log;
26  import com.liferay.portal.kernel.log.LogFactoryUtil;
27  
28  import java.io.UnsupportedEncodingException;
29  
30  import java.security.MessageDigest;
31  import java.security.NoSuchAlgorithmException;
32  
33  import sun.misc.BASE64Encoder;
34  
35  /**
36   * <a href="Digester.java.html"><b><i>View Source</i></b></a>
37   *
38   * @author Brian Wing Shun Chan
39   *
40   */
41  public class Digester {
42  
43      public static final String ENCODING = "UTF-8";
44  
45      public static final String DIGEST_ALGORITHM = "SHA";
46  
47      public static String digest(String text) {
48          return digest(DIGEST_ALGORITHM, text);
49      }
50  
51      public static String digest(String algorithm, String text) {
52          MessageDigest mDigest = null;
53  
54          try{
55              mDigest = MessageDigest.getInstance(algorithm);
56  
57              mDigest.update(text.getBytes(ENCODING));
58          }
59          catch (NoSuchAlgorithmException nsae) {
60              _log.error(nsae, nsae);
61          }
62          catch (UnsupportedEncodingException uee) {
63              _log.error(uee, uee);
64          }
65  
66          byte[] raw = mDigest.digest();
67  
68          BASE64Encoder encoder = new BASE64Encoder();
69  
70          return encoder.encode(raw);
71      }
72  
73      private static Log _log = LogFactoryUtil.getLog(Digester.class);
74  
75  }