1 /*
2 * Copyright (c) 2002-2014, 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 package fr.paris.lutece.plugins.mylutece.modules.saml.authentication.util;
35
36 import org.opensaml.xml.util.Base64;
37
38 import java.io.BufferedInputStream;
39 import java.io.ByteArrayInputStream;
40 import java.io.IOException;
41 import java.io.InputStream;
42
43 import java.security.cert.CertificateException;
44 import java.security.cert.CertificateFactory;
45 import java.security.cert.X509Certificate;
46
47
48 public class X509CertificateHelper
49 {
50 public static X509Certificate buildX509Cert( String b64 )
51 throws CertificateException, IOException
52 {
53 X509Certificate rc = null;
54 InputStream in = null;
55 org.apache.xml.security.Init.init( );
56 in = new ByteArrayInputStream( Base64.decode( b64 ) );
57
58 BufferedInputStream bis = new BufferedInputStream( in );
59 CertificateFactory cf = CertificateFactory.getInstance( "X.509" );
60 rc = (X509Certificate) cf.generateCertificate( bis );
61 in.close( );
62 bis.close( );
63
64 return rc;
65 }
66 }