108 lines
4.4 KiB
Java
108 lines
4.4 KiB
Java
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package org.bouncycastle.jce.provider;
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import java.io.IOException;
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import java.io.ObjectInputStream;
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import java.io.ObjectOutputStream;
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import java.math.BigInteger;
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import javax.crypto.interfaces.DHPublicKey;
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import javax.crypto.spec.DHParameterSpec;
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import javax.crypto.spec.DHPublicKeySpec;
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import org.bouncycastle.asn1.ASN1Integer;
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import org.bouncycastle.asn1.oiw.ElGamalParameter;
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import org.bouncycastle.asn1.oiw.OIWObjectIdentifiers;
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import org.bouncycastle.asn1.x509.AlgorithmIdentifier;
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import org.bouncycastle.asn1.x509.SubjectPublicKeyInfo;
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import org.bouncycastle.crypto.params.ElGamalPublicKeyParameters;
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import org.bouncycastle.jcajce.provider.asymmetric.util.KeyUtil;
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import org.bouncycastle.jce.interfaces.ElGamalPublicKey;
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import org.bouncycastle.jce.spec.ElGamalParameterSpec;
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import org.bouncycastle.jce.spec.ElGamalPublicKeySpec;
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/* loaded from: classes6.dex */
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public class JCEElGamalPublicKey implements ElGamalPublicKey, DHPublicKey {
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static final long serialVersionUID = 8712728417091216948L;
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private ElGamalParameterSpec elSpec;
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private BigInteger y;
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@Override // org.bouncycastle.jce.interfaces.ElGamalPublicKey, javax.crypto.interfaces.DHPublicKey
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public BigInteger getY() {
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return this.y;
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}
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@Override // javax.crypto.interfaces.DHKey
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public DHParameterSpec getParams() {
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return new DHParameterSpec(this.elSpec.getP(), this.elSpec.getG());
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}
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@Override // org.bouncycastle.jce.interfaces.ElGamalKey
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public ElGamalParameterSpec getParameters() {
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return this.elSpec;
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}
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@Override // java.security.Key
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public String getFormat() {
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return "X.509";
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}
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@Override // java.security.Key
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public byte[] getEncoded() {
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return KeyUtil.getEncodedSubjectPublicKeyInfo(new AlgorithmIdentifier(OIWObjectIdentifiers.elGamalAlgorithm, new ElGamalParameter(this.elSpec.getP(), this.elSpec.getG())), new ASN1Integer(this.y));
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}
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@Override // java.security.Key
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public String getAlgorithm() {
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return "ElGamal";
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}
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private void writeObject(ObjectOutputStream objectOutputStream) throws IOException {
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objectOutputStream.writeObject(getY());
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objectOutputStream.writeObject(this.elSpec.getP());
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objectOutputStream.writeObject(this.elSpec.getG());
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}
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private void readObject(ObjectInputStream objectInputStream) throws IOException, ClassNotFoundException {
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this.y = (BigInteger) objectInputStream.readObject();
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this.elSpec = new ElGamalParameterSpec((BigInteger) objectInputStream.readObject(), (BigInteger) objectInputStream.readObject());
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}
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JCEElGamalPublicKey(ElGamalPublicKeySpec elGamalPublicKeySpec) {
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this.y = elGamalPublicKeySpec.getY();
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this.elSpec = new ElGamalParameterSpec(elGamalPublicKeySpec.getParams().getP(), elGamalPublicKeySpec.getParams().getG());
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}
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JCEElGamalPublicKey(ElGamalPublicKey elGamalPublicKey) {
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this.y = elGamalPublicKey.getY();
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this.elSpec = elGamalPublicKey.getParameters();
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}
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JCEElGamalPublicKey(ElGamalPublicKeyParameters elGamalPublicKeyParameters) {
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this.y = elGamalPublicKeyParameters.getY();
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this.elSpec = new ElGamalParameterSpec(elGamalPublicKeyParameters.getParameters().getP(), elGamalPublicKeyParameters.getParameters().getG());
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}
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JCEElGamalPublicKey(SubjectPublicKeyInfo subjectPublicKeyInfo) {
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ElGamalParameter elGamalParameter = ElGamalParameter.getInstance(subjectPublicKeyInfo.getAlgorithm().getParameters());
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try {
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this.y = ((ASN1Integer) subjectPublicKeyInfo.parsePublicKey()).getValue();
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this.elSpec = new ElGamalParameterSpec(elGamalParameter.getP(), elGamalParameter.getG());
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} catch (IOException unused) {
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throw new IllegalArgumentException("invalid info structure in DSA public key");
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}
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}
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JCEElGamalPublicKey(DHPublicKeySpec dHPublicKeySpec) {
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this.y = dHPublicKeySpec.getY();
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this.elSpec = new ElGamalParameterSpec(dHPublicKeySpec.getP(), dHPublicKeySpec.getG());
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}
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JCEElGamalPublicKey(DHPublicKey dHPublicKey) {
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this.y = dHPublicKey.getY();
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this.elSpec = new ElGamalParameterSpec(dHPublicKey.getParams().getP(), dHPublicKey.getParams().getG());
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}
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JCEElGamalPublicKey(BigInteger bigInteger, ElGamalParameterSpec elGamalParameterSpec) {
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this.y = bigInteger;
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this.elSpec = elGamalParameterSpec;
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}
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}
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