File DefaultKeyGenerator.java
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Classes
| Class | Line # | Actions | |||||
|---|---|---|---|---|---|---|---|
| DefaultKeyGenerator | 42 | 8 | 0% | 4 | 2 |
Contributing tests
This file is covered by 6 tests.
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Source view
| 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.symmetric.generator; | |
| 21 | ||
| 22 | import java.security.SecureRandom; | |
| 23 | ||
| 24 | import javax.inject.Inject; | |
| 25 | import javax.inject.Provider; | |
| 26 | import javax.inject.Singleton; | |
| 27 | ||
| 28 | import org.bouncycastle.crypto.CipherKeyGenerator; | |
| 29 | import org.xwiki.component.annotation.Component; | |
| 30 | import org.xwiki.crypto.KeyGenerator; | |
| 31 | import org.xwiki.crypto.params.generator.KeyGenerationParameters; | |
| 32 | import org.xwiki.crypto.params.generator.symmetric.GenericKeyGenerationParameters; | |
| 33 | ||
| 34 | /** | |
| 35 | * Default key generator, not taking care of specific targeted algorithm. | |
| 36 | * | |
| 37 | * @version $Id: 080fabe0a755ad4df0036738444eeb4215229fb7 $ | |
| 38 | * @since 5.4M1 | |
| 39 | */ | |
| 40 | @Component | |
| 41 | @Singleton | |
| 42 | public class DefaultKeyGenerator implements KeyGenerator | |
| 43 | { | |
| 44 | @Inject | |
| 45 | private Provider<SecureRandom> random; | |
| 46 | ||
| 47 | 1 |  @Override |
| 48 | public byte[] generate() | |
| 49 | { | |
| 50 | 1 | throw new UnsupportedOperationException("Knowing the key strength is required to generate a key."); |
| 51 | } | |
| 52 | ||
| 53 | 13 | @Override |
| 54 | public byte[] generate(KeyGenerationParameters parameters) | |
| 55 | { | |
| 56 | 13 | if (!(parameters instanceof GenericKeyGenerationParameters)) { |
| 57 | 0 | throw new IllegalArgumentException("Invalid parameters for generic key generator: " |
| 58 | + parameters.getClass().getName()); | |
| 59 | } | |
| 60 | ||
| 61 | 13 | GenericKeyGenerationParameters params = (GenericKeyGenerationParameters) parameters; |
| 62 | ||
| 63 | 13 | CipherKeyGenerator generator = getKeyGenerator(); |
| 64 | 13 | generator.init(new org.bouncycastle.crypto.KeyGenerationParameters(this.random.get(), |
| 65 | params.getStrength() * 8)); | |
| 66 | 13 | return generator.generateKey(); |
| 67 | } | |
| 68 | ||
| 69 | 3 | protected CipherKeyGenerator getKeyGenerator() |
| 70 | { | |
| 71 | 3 | return new CipherKeyGenerator(); |
| 72 | } | |
| 73 | } |