File PBES2Parameters.java
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Classes
| Class | Line # | Actions | |||||
|---|---|---|---|---|---|---|---|
| PBES2Parameters | 40 | 21 | 0% | 10 | 6 |
Contributing tests
This file is covered by 13 tests.
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| 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; | |
| 21 | ||
| 22 | import java.util.Enumeration; | |
| 23 | ||
| 24 | import org.bouncycastle.asn1.ASN1Encodable; | |
| 25 | import org.bouncycastle.asn1.ASN1EncodableVector; | |
| 26 | import org.bouncycastle.asn1.ASN1Object; | |
| 27 | import org.bouncycastle.asn1.ASN1Primitive; | |
| 28 | import org.bouncycastle.asn1.ASN1Sequence; | |
| 29 | import org.bouncycastle.asn1.DERSequence; | |
| 30 | import org.bouncycastle.asn1.pkcs.EncryptionScheme; | |
| 31 | import org.bouncycastle.asn1.pkcs.KeyDerivationFunc; | |
| 32 | import org.bouncycastle.asn1.pkcs.PKCSObjectIdentifiers; | |
| 33 | ||
| 34 | /** | |
| 35 | * Replace {@link org.bouncycastle.asn1.pkcs.PBES2Parameters} to support alternative Digest as defined in PKCS #5 v2.1. | |
| 36 | * | |
| 37 | * @version $Id: e9c4f85507642442e038b99a49bb8373b65e2bba $ | |
| 38 | * @since 5.4M1 | |
| 39 | */ | |
| 40 | public class PBES2Parameters | |
| 41 | extends ASN1Object | |
| 42 | implements PKCSObjectIdentifiers | |
| 43 | { | |
| 44 | private KeyDerivationFunc func; | |
| 45 | ||
| 46 | private EncryptionScheme scheme; | |
| 47 | ||
| 48 | /** | |
| 49 | * Initialize parameters. | |
| 50 | * | |
| 51 | * @param keyDevFunc the key derivation function definition. | |
| 52 | * @param encScheme the encryption scheme definition. | |
| 53 | */ | |
| 54 | 25 |  public PBES2Parameters(KeyDerivationFunc keyDevFunc, EncryptionScheme encScheme) |
| 55 | { | |
| 56 | 25 | this.func = keyDevFunc; |
| 57 | 25 | this.scheme = encScheme; |
| 58 | } | |
| 59 | ||
| 60 | /** | |
| 61 | * Build a new instance from ASN.1 sequence. | |
| 62 | * | |
| 63 | * @param seq an ASN.1 sequence corresponding to PBES2 parameters. | |
| 64 | */ | |
| 65 | 26 | private PBES2Parameters(ASN1Sequence seq) |
| 66 | { | |
| 67 | 26 | @SuppressWarnings("unchecked") |
| 68 | Enumeration<ASN1Encodable> e = seq.getObjects(); | |
| 69 | 26 | ASN1Sequence funcSeq = ASN1Sequence.getInstance(e.nextElement().toASN1Primitive()); |
| 70 | ||
| 71 | 26 | if (funcSeq.getObjectAt(0).equals(id_PBKDF2)) { |
| 72 | 24 | this.func = new KeyDerivationFunc(id_PBKDF2, PBKDF2Params.getInstance(funcSeq.getObjectAt(1))); |
| 73 | } else { | |
| 74 | 2 | this.func = KeyDerivationFunc.getInstance(funcSeq); |
| 75 | } | |
| 76 | ||
| 77 | 26 | this.scheme = EncryptionScheme.getInstance(e.nextElement()); |
| 78 | } | |
| 79 | ||
| 80 | /** | |
| 81 | * Static factory methods to create new instance from existing instance or encoded data. | |
| 82 | * | |
| 83 | * @param obj a compatible object, either another instance or a ASN.1 sequence. | |
| 84 | * @return a new instance. | |
| 85 | */ | |
| 86 | 26 | public static PBES2Parameters getInstance(Object obj) |
| 87 | { | |
| 88 | 26 | if (obj instanceof PBES2Parameters) { |
| 89 | 0 | return (PBES2Parameters) obj; |
| 90 | } | |
| 91 | 26 | if (obj instanceof org.bouncycastle.asn1.pkcs.PBES2Parameters) { |
| 92 | 0 | return new PBES2Parameters(((org.bouncycastle.asn1.pkcs.PBES2Parameters) obj).getKeyDerivationFunc(), |
| 93 | ((org.bouncycastle.asn1.pkcs.PBES2Parameters) obj).getEncryptionScheme()); | |
| 94 | } | |
| 95 | 26 | if (obj != null) { |
| 96 | 26 | return new PBES2Parameters(ASN1Sequence.getInstance(obj)); |
| 97 | } | |
| 98 | 0 | return null; |
| 99 | } | |
| 100 | ||
| 101 | /** | |
| 102 | * @return the key derivation function definition. | |
| 103 | */ | |
| 104 | 13 | public KeyDerivationFunc getKeyDerivationFunc() |
| 105 | { | |
| 106 | 13 | return this.func; |
| 107 | } | |
| 108 | ||
| 109 | /** | |
| 110 | * @return the encryption scheme definition. | |
| 111 | */ | |
| 112 | 26 | public EncryptionScheme getEncryptionScheme() |
| 113 | { | |
| 114 | 26 | return this.scheme; |
| 115 | } | |
| 116 | ||
| 117 | /** | |
| 118 | * @return the underlying primitive type. | |
| 119 | */ | |
| 120 | 57 | @Override |
| 121 | public ASN1Primitive toASN1Primitive() | |
| 122 | { | |
| 123 | 57 | ASN1EncodableVector v = new ASN1EncodableVector(); |
| 124 | ||
| 125 | 57 | v.add(this.func); |
| 126 | 57 | v.add(this.scheme); |
| 127 | ||
| 128 | 57 | return new DERSequence(v); |
| 129 | } | |
| 130 | } |