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1   /**
2    * Copyright 2005-2011 The Kuali Foundation
3    *
4    * Licensed under the Educational Community License, Version 2.0 (the "License");
5    * you may not use this file except in compliance with the License.
6    * You may obtain a copy of the License at
7    *
8    * http://www.opensource.org/licenses/ecl2.php
9    *
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS,
12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   * See the License for the specific language governing permissions and
14   * limitations under the License.
15   */
16  package org.kuali.rice.core.impl.encryption;
17  
18  import org.apache.commons.lang.StringUtils;
19  import org.kuali.rice.core.api.encryption.EncryptionService;
20  
21  import java.security.GeneralSecurityException;
22  
23  /**
24   * Implementation of encryption service for demonstration. 
25   * 
26   * 
27   */
28  public class NoEncryptionEncryptionServiceImpl implements EncryptionService {
29  
30      /**
31       * @see org.kuali.rice.ksb.security.EncryptionService#isEnabled()
32       */
33      public boolean isEnabled() {
34          return false;
35      }
36      
37      public String encrypt(Object valueToHide) throws GeneralSecurityException {
38          if (valueToHide == null) {
39              return "";
40          }
41  
42          return valueToHide.toString();
43      }
44  
45      public String decrypt(String ciphertext) throws GeneralSecurityException {
46          if (StringUtils.isBlank(ciphertext)) {
47              return "";
48          }
49  
50          return new String(ciphertext);
51      }
52  
53      public String hash(Object valueToHide) throws GeneralSecurityException {
54          if ( valueToHide == null || StringUtils.isEmpty( valueToHide.toString() ) ) {
55              return "";
56          }
57          return valueToHide.toString();
58      }
59      
60      /**
61       * This overridden method ...
62       * 
63       * @see org.kuali.rice.core.api.encryption.EncryptionService#decryptBytes(byte[])
64       */
65      public byte[] decryptBytes(byte[] ciphertext)
66      		throws GeneralSecurityException {
67      	return ciphertext;
68      }
69      
70      /**
71       * This overridden method ...
72       * 
73       * @see org.kuali.rice.core.api.encryption.EncryptionService#encryptBytes(byte[])
74       */
75      public byte[] encryptBytes(byte[] valueToHide)
76      		throws GeneralSecurityException {
77      	return valueToHide;
78      }
79  }