File BcPublicKeyParameters.java
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Classes
| Class | Line # | Actions | |||||
|---|---|---|---|---|---|---|---|
| BcPublicKeyParameters | 45 | 17 | 0% | 8 | 6 |
Contributing tests
This file is covered by 32 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.internal.asymmetric; | |
| 21 | ||
| 22 | import java.io.IOException; | |
| 23 | ||
| 24 | import org.bouncycastle.asn1.ASN1Integer; | |
| 25 | import org.bouncycastle.asn1.DERNull; | |
| 26 | import org.bouncycastle.asn1.pkcs.PKCSObjectIdentifiers; | |
| 27 | import org.bouncycastle.asn1.pkcs.RSAPublicKey; | |
| 28 | import org.bouncycastle.asn1.x509.AlgorithmIdentifier; | |
| 29 | import org.bouncycastle.asn1.x509.DSAParameter; | |
| 30 | import org.bouncycastle.asn1.x509.SubjectPublicKeyInfo; | |
| 31 | import org.bouncycastle.asn1.x9.X9ObjectIdentifiers; | |
| 32 | import org.bouncycastle.crypto.params.AsymmetricKeyParameter; | |
| 33 | import org.bouncycastle.crypto.params.DSAParameters; | |
| 34 | import org.bouncycastle.crypto.params.DSAPublicKeyParameters; | |
| 35 | import org.bouncycastle.crypto.params.RSAKeyParameters; | |
| 36 | import org.bouncycastle.crypto.util.SubjectPublicKeyInfoFactory; | |
| 37 | import org.xwiki.crypto.params.cipher.asymmetric.PublicKeyParameters; | |
| 38 | ||
| 39 | /** | |
| 40 | * Encapsulate a Bouncy Castle asymmetric parameter of a public key. | |
| 41 | * | |
| 42 | * @version $Id: 44e9cef4a61d9aa982877eda1422097d2052463d $ | |
| 43 | * @since 5.4M1 | |
| 44 | */ | |
| 45 | public class BcPublicKeyParameters extends AbstractBcAsymmetricKeyParameters implements PublicKeyParameters | |
| 46 | { | |
| 47 | /** | |
| 48 | * Encapsulate a given Bouncy Castle public key parameter. | |
| 49 | * | |
| 50 | * @param parameters a BC public key parameter. | |
| 51 | */ | |
| 52 | 63 |  public BcPublicKeyParameters(AsymmetricKeyParameter parameters) |
| 53 | { | |
| 54 | 63 | super(parameters); |
| 55 | 63 | if (isPrivate()) { |
| 56 | 0 | throw new IllegalArgumentException("Private key assigned to a public key: " |
| 57 | + parameters.getClass().getName()); | |
| 58 | } | |
| 59 | } | |
| 60 | ||
| 61 | /** | |
| 62 | * @return parameters converted to BC subject public key info structure. | |
| 63 | * @throws IOException on error. | |
| 64 | */ | |
| 65 | 23 | public SubjectPublicKeyInfo getSubjectPublicKeyInfo() throws IOException |
| 66 | { | |
| 67 | 23 | if (this.parameters instanceof RSAKeyParameters) { |
| 68 | 14 | RSAKeyParameters params = (RSAKeyParameters) this.parameters; |
| 69 | ||
| 70 | 14 | return new SubjectPublicKeyInfo( |
| 71 | new AlgorithmIdentifier(PKCSObjectIdentifiers.rsaEncryption, DERNull.INSTANCE), | |
| 72 | new RSAPublicKey(params.getModulus(), params.getExponent())); | |
| 73 | 9 | } else if (this.parameters instanceof DSAPublicKeyParameters) { |
| 74 | 9 | DSAPublicKeyParameters params = (DSAPublicKeyParameters) this.parameters; |
| 75 | 9 | DSAParameters dsaParams = params.getParameters(); |
| 76 | 9 | DSAParameter algParams = null; |
| 77 | ||
| 78 | 9 | if (dsaParams != null) { |
| 79 | 9 | algParams = new DSAParameter(dsaParams.getP(), dsaParams.getQ(), dsaParams.getG()); |
| 80 | } | |
| 81 | ||
| 82 | 9 | return new SubjectPublicKeyInfo( |
| 83 | new AlgorithmIdentifier(X9ObjectIdentifiers.id_dsa, algParams), | |
| 84 | new ASN1Integer(params.getY())); | |
| 85 | } else { | |
| 86 | // Fallback to Bouncy Castle, not sure it will do anything useful however. | |
| 87 | 0 | return SubjectPublicKeyInfoFactory.createSubjectPublicKeyInfo(this.parameters); |
| 88 | } | |
| 89 | } | |
| 90 | ||
| 91 | 2 | @Override |
| 92 | public byte[] getEncoded() | |
| 93 | { | |
| 94 | 2 | try { |
| 95 | 2 | return getSubjectPublicKeyInfo().getEncoded(); |
| 96 | } catch (IOException e) { | |
| 97 | 0 | return null; |
| 98 | } | |
| 99 | } | |
| 100 | } |