Class | Line # | Actions | |||||
---|---|---|---|---|---|---|---|
AbstractBcKDFFactory | 36 | 9 | 0% | 5 | 3 |
1 | /* | |
2 | * See the NOTICE file distributed with this work for additional | |
3 | * information regarding copyright ownership. | |
4 | * | |
5 | * This is free software; you can redistribute it and/or modify it | |
6 | * under the terms of the GNU Lesser General Public License as | |
7 | * published by the Free Software Foundation; either version 2.1 of | |
8 | * the License, or (at your option) any later version. | |
9 | * | |
10 | * This software is distributed in the hope that it will be useful, | |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 | * Lesser General Public License for more details. | |
14 | * | |
15 | * You should have received a copy of the GNU Lesser General Public | |
16 | * License along with this software; if not, write to the Free | |
17 | * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA | |
18 | * 02110-1301 USA, or see the FSF site: http://www.fsf.org. | |
19 | */ | |
20 | package org.xwiki.crypto.password.internal.kdf.factory; | |
21 | ||
22 | import javax.inject.Named; | |
23 | ||
24 | import org.bouncycastle.asn1.ASN1Encodable; | |
25 | import org.bouncycastle.asn1.ASN1Sequence; | |
26 | import org.xwiki.component.annotation.Component; | |
27 | import org.xwiki.crypto.password.KeyDerivationFunction; | |
28 | import org.xwiki.crypto.password.KeyDerivationFunctionFactory; | |
29 | ||
30 | /** | |
31 | * Abstract base class for key derivation function factory based on Bouncy Castle. | |
32 | * | |
33 | * @version $Id: 6790c3fc1a1fa90f3efb042f4ca09dceef87d642 $ | |
34 | * @since 5.4M1 | |
35 | */ | |
36 | public abstract class AbstractBcKDFFactory implements KeyDerivationFunctionFactory | |
37 | { | |
38 | 2 | @Override |
39 | public String getKDFAlgorithmName() | |
40 | { | |
41 | 2 | String hint = null; |
42 | 2 | Named named = this.getClass().getAnnotation(Named.class); |
43 | 2 | if (named != null) { |
44 | 0 | hint = named.value(); |
45 | } else { | |
46 | 2 | Component component = this.getClass().getAnnotation(Component.class); |
47 | 2 | if (component != null && component.hints().length > 0) { |
48 | 2 | hint = component.hints()[0]; |
49 | } | |
50 | } | |
51 | ||
52 | 2 | return hint; |
53 | } | |
54 | ||
55 | 2 | @Override |
56 | public KeyDerivationFunction getInstance(byte[] encoded) | |
57 | { | |
58 | 2 | return getInstance(ASN1Sequence.getInstance(encoded)); |
59 | } | |
60 | ||
61 | /** | |
62 | * Get a Bouncy Castle based key derivation function from ASN.1 parameters. | |
63 | * | |
64 | * The ASN.1 parameters will be parsed as a {@link org.bouncycastle.asn1.pkcs.KeyDerivationFunc}. | |
65 | * | |
66 | * @param parameters ASN.1 encodable parameters to initialize the function. | |
67 | * @return a initialized key derivation function. | |
68 | */ | |
69 | public abstract KeyDerivationFunction getInstance(ASN1Encodable parameters); | |
70 | } |