1 /*
2 * Copyright (c) 2002-2022, City of 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 package fr.paris.lutece.util.rsa;
35
36 import java.security.GeneralSecurityException;
37 import java.security.PrivateKey;
38 import java.security.PublicKey;
39 import java.util.List;
40
41 import fr.paris.lutece.portal.service.spring.SpringContextService;
42
43 public class RSAKeyPairUtil
44 {
45 private static RSAKeyPairUtil _instance;
46 private static String RSA_KEY_PROVIDER_BEAN_NAME = "RSAKeyProvider";
47 private PrivateKey _privateKey;
48 private PublicKey _publicKey;
49
50 private RSAKeyPairUtil( ) throws GeneralSecurityException
51 {
52 readKeys( );
53 }
54
55 public static RSAKeyPairUtil getInstance( ) throws GeneralSecurityException
56 {
57 if ( _instance == null )
58 {
59 _instance = new RSAKeyPairUtil( );
60 }
61 return _instance;
62 }
63
64 /**
65 * @return the privateKey
66 */
67 public PrivateKey getPrivateKey( )
68 {
69 return _privateKey;
70 }
71
72 /**
73 * @return the publicKey
74 */
75 public PublicKey getPublicKey( )
76 {
77 return _publicKey;
78 }
79
80 /**
81 * get the public and private key
82 * s
83 * @throws GeneralSecurityException
84 */
85 private void readKeys( ) throws GeneralSecurityException
86 {
87 IRSAKeyProvider rsaKeyProvider = SpringContextService.getBean( RSA_KEY_PROVIDER_BEAN_NAME );
88
89 if ( rsaKeyProvider == null )
90 {
91 throw new GeneralSecurityException( "RSA Key Provider not found.");
92 }
93 else
94 {
95 _publicKey = rsaKeyProvider.getPublicKey( );
96 _privateKey = rsaKeyProvider.getPrivateKey( );
97 }
98 }
99 }