32 lines
1.8 KiB
Java
32 lines
1.8 KiB
Java
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package org.bouncycastle.crypto.generators;
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import java.math.BigInteger;
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import org.bouncycastle.crypto.AsymmetricCipherKeyPair;
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import org.bouncycastle.crypto.AsymmetricCipherKeyPairGenerator;
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import org.bouncycastle.crypto.KeyGenerationParameters;
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import org.bouncycastle.crypto.params.AsymmetricKeyParameter;
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import org.bouncycastle.crypto.params.DHParameters;
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import org.bouncycastle.crypto.params.ElGamalKeyGenerationParameters;
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import org.bouncycastle.crypto.params.ElGamalParameters;
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import org.bouncycastle.crypto.params.ElGamalPrivateKeyParameters;
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import org.bouncycastle.crypto.params.ElGamalPublicKeyParameters;
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/* loaded from: classes6.dex */
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public class ElGamalKeyPairGenerator implements AsymmetricCipherKeyPairGenerator {
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private ElGamalKeyGenerationParameters param;
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@Override // org.bouncycastle.crypto.AsymmetricCipherKeyPairGenerator
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public void init(KeyGenerationParameters keyGenerationParameters) {
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this.param = (ElGamalKeyGenerationParameters) keyGenerationParameters;
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}
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@Override // org.bouncycastle.crypto.AsymmetricCipherKeyPairGenerator
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public AsymmetricCipherKeyPair generateKeyPair() {
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DHKeyGeneratorHelper dHKeyGeneratorHelper = DHKeyGeneratorHelper.INSTANCE;
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ElGamalParameters parameters = this.param.getParameters();
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DHParameters dHParameters = new DHParameters(parameters.getP(), parameters.getG(), null, parameters.getL());
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BigInteger calculatePrivate = dHKeyGeneratorHelper.calculatePrivate(dHParameters, this.param.getRandom());
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return new AsymmetricCipherKeyPair((AsymmetricKeyParameter) new ElGamalPublicKeyParameters(dHKeyGeneratorHelper.calculatePublic(dHParameters, calculatePrivate), parameters), (AsymmetricKeyParameter) new ElGamalPrivateKeyParameters(calculatePrivate, parameters));
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}
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}
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