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.KeyFactory;
38 import java.security.KeyPair;
39 import java.security.KeyPairGenerator;
40 import java.security.PrivateKey;
41 import java.security.PublicKey;
42 import java.security.spec.PKCS8EncodedKeySpec;
43 import java.security.spec.X509EncodedKeySpec;
44 import java.util.Base64;
45
46 import fr.paris.lutece.portal.service.datastore.DatastoreService;
47
48 public class RSAKeyEnvironmentProvider implements IRSAKeyProvider
49 {
50
51 private static final String ENV_VAR_PUBLIC_KEY = "lutece_rsa_public_key";
52 private static final String ENV_VAR_PRIVATE_KEY = "lutece_rsa_private_key";
53 private static final String MESSAGE_NOT_FOUND = "RSA Key env vars not found";
54
55 @Override
56 public PublicKey getPublicKey( ) throws GeneralSecurityException
57 {
58 if ( System.getenv( ENV_VAR_PUBLIC_KEY ) != null )
59 {
60 X509EncodedKeySpec keySpecPublic = new X509EncodedKeySpec(
61 Base64.getDecoder( ).decode( System.getenv( ENV_VAR_PUBLIC_KEY ).getBytes( ) ) );
62
63 KeyFactory keyFactory = KeyFactory.getInstance( "RSA" );
64
65 return keyFactory.generatePublic( keySpecPublic );
66 }
67 else
68 {
69 throw new GeneralSecurityException( MESSAGE_NOT_FOUND );
70 }
71 }
72
73 @Override
74 public PrivateKey getPrivateKey ( ) throws GeneralSecurityException
75 {
76 if ( System.getenv( ENV_VAR_PRIVATE_KEY ) != null )
77 {
78 PKCS8EncodedKeySpec keySpecPrivate = new PKCS8EncodedKeySpec(
79 Base64.getDecoder( ).decode( System.getenv( ENV_VAR_PRIVATE_KEY ).getBytes( ) ) );
80
81 KeyFactory keyFactory = KeyFactory.getInstance( "RSA" );
82
83 return keyFactory.generatePrivate( keySpecPrivate );
84 }
85 else
86 {
87 throw new GeneralSecurityException( MESSAGE_NOT_FOUND );
88 }
89 }
90
91 }