1 /**
2 * Copyright 2005-2014 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.api.encryption;
17
18 import java.security.GeneralSecurityException;
19
20 /**
21 * This is a service interface to consolidate Kuali encryption operation
22 *
23 * @author Kuali Rice Team (rice.collab@kuali.org)
24 *
25 */
26 public interface EncryptionService {
27 /* string appended to an encrypted value by the frameworks for determine if a
28 value coming back from the ui is encrypted */
29 public static final String ENCRYPTION_POST_PREFIX = "(&^#&)";
30 public static final String HASH_POST_PREFIX = "(&^HSH#&)";
31
32 /**
33 * Encrypts a value
34 *
35 * @param valueToHide - original value
36 * @return encrypted value
37 * @throws GeneralSecurityException
38 */
39 public String encrypt(Object valueToHide) throws GeneralSecurityException;
40
41 /**
42 * Encrypts a value
43 *
44 * @param valueToHide - original value
45 * @return encrypted value
46 * @throws GeneralSecurityException
47 */
48 public byte[] encryptBytes(byte[] valueToHide) throws GeneralSecurityException;
49
50 /**
51 * Decrypts a value
52 *
53 * @param ciphertext - encrypted value
54 * @return decrypted value
55 * @throws GeneralSecurityException
56 */
57 public String decrypt(String ciphertext) throws GeneralSecurityException;
58
59 /**
60 * Decrypts a value
61 *
62 * @param ciphertext - encrypted value
63 * @return decrypted value
64 * @throws GeneralSecurityException
65 */
66 public byte[] decryptBytes(byte[] ciphertext) throws GeneralSecurityException;
67
68 /**
69 * Returns true if encryption is enabled within KEW, false otherwise.
70 */
71 public boolean isEnabled();
72
73 /**
74 * Hashes a value (for one-way transformations)
75 *
76 * @param valueToHide - original value
77 * @return encrypted value
78 * @throws GeneralSecurityException
79 */
80 public String hash(Object valueToHide) throws GeneralSecurityException;
81 }