50 lines
1.1 KiB
Java
50 lines
1.1 KiB
Java
// SPDX-FileCopyrightText: 2018 Paul Schaub <vanitasvitae@fsfe.org>
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//
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// SPDX-License-Identifier: Apache-2.0
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package org.pgpainless.key.generation.type.elgamal;
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import java.security.spec.AlgorithmParameterSpec;
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import javax.annotation.Nonnull;
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import org.bouncycastle.jce.spec.ElGamalParameterSpec;
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import org.pgpainless.algorithm.PublicKeyAlgorithm;
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import org.pgpainless.key.generation.type.KeyType;
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/**
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* ElGamal encryption only key type.
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*/
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public final class ElGamal implements KeyType {
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private final ElGamalLength length;
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private ElGamal(@Nonnull ElGamalLength length) {
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this.length = length;
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}
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public static ElGamal withLength(ElGamalLength length) {
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return new ElGamal(length);
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}
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@Override
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public String getName() {
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return "ElGamal";
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}
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@Override
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public PublicKeyAlgorithm getAlgorithm() {
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return PublicKeyAlgorithm.ELGAMAL_ENCRYPT;
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}
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@Override
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public int getBitStrength() {
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return length.getLength();
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}
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@Override
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public AlgorithmParameterSpec getAlgorithmSpec() {
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return new ElGamalParameterSpec(length.getP(), length.getG());
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}
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}
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