File AbstractBcPssSignerFactory.java
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Classes
| Class | Line # | Actions | |||||
|---|---|---|---|---|---|---|---|
| AbstractBcPssSignerFactory | 45 | 21 | 0% | 12 | 8 |
Contributing tests
This file is covered by 14 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.signer.internal.factory; | |
| 21 | ||
| 22 | import javax.inject.Inject; | |
| 23 | ||
| 24 | import org.bouncycastle.crypto.AsymmetricBlockCipher; | |
| 25 | import org.bouncycastle.crypto.Digest; | |
| 26 | import org.bouncycastle.crypto.digests.SHA1Digest; | |
| 27 | import org.bouncycastle.crypto.signers.PSSSigner; | |
| 28 | import org.xwiki.component.manager.ComponentLookupException; | |
| 29 | import org.xwiki.component.manager.ComponentManager; | |
| 30 | import org.xwiki.crypto.DigestFactory; | |
| 31 | import org.xwiki.crypto.internal.asymmetric.BcAsymmetricKeyParameters; | |
| 32 | import org.xwiki.crypto.internal.digest.factory.AbstractBcDigestFactory; | |
| 33 | import org.xwiki.crypto.internal.digest.factory.BcDigestFactory; | |
| 34 | import org.xwiki.crypto.params.cipher.asymmetric.AsymmetricCipherParameters; | |
| 35 | import org.xwiki.crypto.params.cipher.asymmetric.AsymmetricKeyParameters; | |
| 36 | import org.xwiki.crypto.signer.params.PssParameters; | |
| 37 | import org.xwiki.crypto.signer.params.PssSignerParameters; | |
| 38 | ||
| 39 | /** | |
| 40 | * Abtract base class for factories of PSS based signature processing. | |
| 41 | * | |
| 42 | * @version $Id: 04273490d61e7d2c09aea4e44b55dc57fad6eb19 $ | |
| 43 | * @since 5.4RC1 | |
| 44 | */ | |
| 45 | public abstract class AbstractBcPssSignerFactory extends AbstractBcSignerFactory | |
| 46 | { | |
| 47 | private static final String PSS_PARAMS_ERROR = "PSS signer parameters are invalid: "; | |
| 48 | ||
| 49 | @Inject | |
| 50 | private ComponentManager manager; | |
| 51 | ||
| 52 | protected abstract AsymmetricBlockCipher getCipherEngine(); | |
| 53 | ||
| 54 | 28 |  @Override |
| 55 | protected org.bouncycastle.crypto.Signer getSignerInstance(AsymmetricCipherParameters parameters) | |
| 56 | { | |
| 57 | 28 | if (parameters instanceof AsymmetricKeyParameters) { |
| 58 | 12 | return new PSSSigner(getCipherEngine(), new SHA1Digest(), 20); |
| 59 | 16 | } else if (parameters instanceof PssSignerParameters) { |
| 60 | 16 | PssParameters pssParams = ((PssSignerParameters) parameters).getPssParameters(); |
| 61 | 16 | Digest digest = getDigestFactory(pssParams.getHashAlgorithm()).getDigestInstance(); |
| 62 | ||
| 63 | 16 | return new PSSSigner(getCipherEngine(), digest, |
| 64 | getDigestFactory(pssParams.getMaskGenAlgorithm()).getDigestInstance(), | |
| 65 | 16 | pssParams.getSaltLength() >= 0 ? pssParams.getSaltLength() : digest.getDigestSize(), |
| 66 | pssParams.getTrailerByte()); | |
| 67 | } | |
| 68 | ||
| 69 | 0 | throw new UnsupportedOperationException(PSS_PARAMS_ERROR + parameters.getClass().getName()); |
| 70 | } | |
| 71 | ||
| 72 | 28 | @Override |
| 73 | protected org.bouncycastle.crypto.CipherParameters getBcCipherParameter(AsymmetricCipherParameters parameters) | |
| 74 | { | |
| 75 | 28 | AsymmetricKeyParameters keyParams = null; |
| 76 | ||
| 77 | 28 | if (parameters instanceof AsymmetricKeyParameters) { |
| 78 | 12 | keyParams = (AsymmetricKeyParameters) parameters; |
| 79 | 16 | } else if (parameters instanceof PssSignerParameters) { |
| 80 | 16 | keyParams = ((PssSignerParameters) parameters).getKeyParameters(); |
| 81 | } | |
| 82 | ||
| 83 | 28 | if (keyParams != null && keyParams instanceof BcAsymmetricKeyParameters) { |
| 84 | 28 | return ((BcAsymmetricKeyParameters) keyParams).getParameters(); |
| 85 | } | |
| 86 | ||
| 87 | // TODO: convert parameters to compatible ones | |
| 88 | 0 | throw new UnsupportedOperationException("Cipher parameters are incompatible with this signer: " |
| 89 | + parameters.getClass().getName()); | |
| 90 | } | |
| 91 | ||
| 92 | 64 | protected BcDigestFactory getDigestFactory(String hint) |
| 93 | { | |
| 94 | 64 | try { |
| 95 | 64 | DigestFactory factory = this.manager.getInstance(DigestFactory.class, hint); |
| 96 | ||
| 97 | 64 | if (!(factory instanceof BcDigestFactory)) { |
| 98 | 0 | throw new IllegalArgumentException( |
| 99 | "Requested digest algorithm is not implemented by a factory compatible with this factory." | |
| 100 | + " Factory found: " + factory.getClass().getName()); | |
| 101 | } | |
| 102 | ||
| 103 | 64 | return (AbstractBcDigestFactory) factory; |
| 104 | } catch (ComponentLookupException e) { | |
| 105 | 0 | throw new UnsupportedOperationException("Digest algorithm not found: " + hint, e); |
| 106 | } | |
| 107 | } | |
| 108 | } |