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package org.xwiki.crypto.internal.asymmetric.generator; |
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import java.security.SecureRandom; |
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import javax.inject.Inject; |
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import javax.inject.Named; |
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import javax.inject.Provider; |
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import javax.inject.Singleton; |
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import org.bouncycastle.crypto.generators.DSAParametersGenerator; |
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import org.bouncycastle.crypto.params.DSAParameterGenerationParameters; |
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import org.xwiki.component.annotation.Component; |
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import org.xwiki.component.manager.ComponentLookupException; |
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import org.xwiki.component.manager.ComponentManager; |
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import org.xwiki.crypto.DigestFactory; |
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import org.xwiki.crypto.KeyParametersGenerator; |
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import org.xwiki.crypto.internal.digest.factory.AbstractBcDigestFactory; |
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import org.xwiki.crypto.params.generator.KeyGenerationParameters; |
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import org.xwiki.crypto.params.generator.KeyParametersGenerationParameters; |
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import org.xwiki.crypto.params.generator.asymmetric.DSAKeyGenerationParameters; |
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import org.xwiki.crypto.params.generator.asymmetric.DSAKeyParametersGenerationParameters; |
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import org.xwiki.crypto.params.generator.asymmetric.DSAKeyValidationParameters; |
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@version |
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@since |
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@Component |
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@Singleton |
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@Named("DSA") |
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| 75.5% |
Uncovered Elements: 13 (53) |
Complexity: 16 |
Complexity Density: 0.52 |
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public class BcDSAKeyParameterGenerator implements KeyParametersGenerator |
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{ |
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@Inject |
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private Provider<SecureRandom> random; |
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@Inject |
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private ComponentManager manager; |
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| 100% |
Uncovered Elements: 0 (1) |
Complexity: 1 |
Complexity Density: 1 |
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@Override... |
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public KeyGenerationParameters generate() |
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{ |
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return generate(new DSAKeyParametersGenerationParameters()); |
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} |
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| 71.4% |
Uncovered Elements: 2 (7) |
Complexity: 2 |
Complexity Density: 0.4 |
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@Override... |
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public KeyGenerationParameters generate(KeyParametersGenerationParameters parameters) |
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{ |
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if (!(parameters instanceof DSAKeyParametersGenerationParameters)) { |
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throw new IllegalArgumentException("Invalid parameters for DSA key parameters generator: " |
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+ parameters.getClass().getName()); |
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} |
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org.bouncycastle.crypto.params.DSAParameters dsaParams = |
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getDsaParameters(this.random.get(), (DSAKeyParametersGenerationParameters) parameters); |
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org.bouncycastle.crypto.params.DSAValidationParameters dsaValidParams = dsaParams.getValidationParameters(); |
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return new DSAKeyGenerationParameters(dsaParams.getP(), dsaParams.getQ(), dsaParams.getG(), |
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new DSAKeyValidationParameters(dsaValidParams.getSeed(), dsaValidParams.getCounter(), |
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getUsage(dsaValidParams.getUsageIndex()))); |
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} |
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@param |
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@return |
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| 100% |
Uncovered Elements: 0 (8) |
Complexity: 2 |
Complexity Density: 0.33 |
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org.bouncycastle.crypto.params.DSAParameters getDsaParameters(SecureRandom random,... |
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DSAKeyParametersGenerationParameters params) |
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{ |
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DSAParametersGenerator paramGen = getGenerator(params.getHashHint()); |
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if (params.use186r3()) { |
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DSAParameterGenerationParameters p = new DSAParameterGenerationParameters( |
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params.getPrimePsize() * 8, params.getPrimeQsize() * 8, |
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params.getCertainty(), random, |
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getUsageIndex(params.getUsage())); |
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paramGen.init(p); |
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} else { |
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paramGen.init(params.getStrength() * 8, params.getCertainty(), random); |
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} |
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return paramGen.generateParameters(); |
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} |
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@param |
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@return |
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| 76.9% |
Uncovered Elements: 3 (13) |
Complexity: 5 |
Complexity Density: 0.56 |
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private DSAParametersGenerator getGenerator(String hint)... |
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{ |
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if (hint == null || "SHA-1".equals(hint)) { |
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return new DSAParametersGenerator(); |
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} |
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DigestFactory factory; |
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try { |
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factory = this.manager.getInstance(DigestFactory.class, hint); |
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} catch (ComponentLookupException e) { |
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throw new UnsupportedOperationException("Cryptographic hash (digest) algorithm not found.", e); |
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} |
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if (!(factory instanceof AbstractBcDigestFactory)) { |
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throw new IllegalArgumentException( |
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"Requested cryptographic hash algorithm is not implemented by a factory compatible with this factory." |
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+ " Factory found: " + factory.getClass().getName()); |
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} |
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return new DSAParametersGenerator(((AbstractBcDigestFactory) factory).getDigestInstance()); |
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} |
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@param |
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@return |
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| 55.6% |
Uncovered Elements: 4 (9) |
Complexity: 3 |
Complexity Density: 0.6 |
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static int getUsageIndex(DSAKeyValidationParameters.Usage usage)... |
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{ |
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if (usage == DSAKeyValidationParameters.Usage.DIGITAL_SIGNATURE) { |
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return DSAParameterGenerationParameters.DIGITAL_SIGNATURE_USAGE; |
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} else if (usage == DSAKeyValidationParameters.Usage.KEY_ESTABLISHMENT) { |
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return DSAParameterGenerationParameters.KEY_ESTABLISHMENT_USAGE; |
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} |
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return -1; |
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} |
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@param |
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@return |
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| 55.6% |
Uncovered Elements: 4 (9) |
Complexity: 3 |
Complexity Density: 0.6 |
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private static DSAKeyValidationParameters.Usage getUsage(int usage)... |
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{ |
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if (usage == DSAParameterGenerationParameters.DIGITAL_SIGNATURE_USAGE) { |
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return DSAKeyValidationParameters.Usage.DIGITAL_SIGNATURE; |
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} else if (usage == DSAParameterGenerationParameters.KEY_ESTABLISHMENT_USAGE) { |
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return DSAKeyValidationParameters.Usage.KEY_ESTABLISHMENT; |
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} |
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return DSAKeyValidationParameters.Usage.ANY; |
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} |
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} |