1 /*
2 * Copyright (c) 2002-2017, Mairie de Paris
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * 1. Redistributions of source code must retain the above copyright notice
10 * and the following disclaimer.
11 *
12 * 2. Redistributions in binary form must reproduce the above copyright notice
13 * and the following disclaimer in the documentation and/or other materials
14 * provided with the distribution.
15 *
16 * 3. Neither the name of 'Mairie de Paris' nor 'Lutece' nor the names of its
17 * contributors may be used to endorse or promote products derived from
18 * this software without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
21 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
24 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30 * POSSIBILITY OF SUCH DAMAGE.
31 *
32 * License 1.0
33 */
34
35 package fr.paris.lutece.util.keydiversification;
36
37 import java.util.Map;
38 import java.util.concurrent.ConcurrentHashMap;
39
40 /**
41 * This service manages the keys for Identity Providers (IDP) and Service Providers (SP)
42 */
43 public final class DiversificationService
44 {
45 private static Map<String, CryptoService> _mapCryptoServices = new ConcurrentHashMap<>( );
46
47 /**
48 * Default constructor
49 */
50 private DiversificationService( )
51 {
52
53 }
54
55 /**
56 * Converts the specified IDP key into a key usable by the SP
57 *
58 * @param strIDPKey
59 * the IDP key to converts
60 * @param strSP
61 * the SP using the key
62 * @return the key usable by the SP
63 * @throws KeyDiversificationException
64 * if there is an error during the treatment
65 */
66 public static String getSPKey( String strIDPKey, String strSP ) throws KeyDiversificationException
67 {
68 CryptoService cryptoService = _mapCryptoServices.get( strSP );
69 if ( cryptoService == null )
70 {
71 cryptoService = new CryptoService( strSP );
72 _mapCryptoServices.put( strSP, cryptoService );
73 }
74
75 return cryptoService.encrypt( strIDPKey );
76 }
77
78 /**
79 * Converts the specified SP key into the IDP key
80 *
81 * @param strSPKey
82 * the key used by the SP
83 * @param strSP
84 * the SP using the key
85 * @return the IDP key
86 * @throws KeyDiversificationException
87 * if there is an error during the treatment
88 */
89 public static String getIDPKey( String strSPKey, String strSP ) throws KeyDiversificationException
90 {
91 CryptoService cryptoService = _mapCryptoServices.get( strSP );
92 if ( cryptoService == null )
93 {
94 cryptoService = new CryptoService( strSP );
95 _mapCryptoServices.put( strSP, cryptoService );
96 }
97
98 return cryptoService.decrypt( strSPKey );
99 }
100 }