// 
// Decompiled by Procyon v0.6.0
// 

package org.bouncycastle.crypto.util;

import java.util.HashSet;
import org.bouncycastle.asn1.ASN1ObjectIdentifier;
import java.math.BigInteger;
import org.bouncycastle.crypto.params.ECDomainParameters;
import org.bouncycastle.crypto.params.DSAParameters;
import org.bouncycastle.pqc.crypto.lms.LMSPublicKeyParameters;
import org.bouncycastle.util.Arrays;
import org.bouncycastle.util.Encodable;
import org.bouncycastle.pqc.crypto.lms.Composer;
import org.bouncycastle.pqc.crypto.lms.HSSPublicKeyParameters;
import org.bouncycastle.crypto.params.Ed25519PublicKeyParameters;
import org.bouncycastle.crypto.params.Ed448PublicKeyParameters;
import org.bouncycastle.crypto.params.X25519PublicKeyParameters;
import org.bouncycastle.internal.asn1.edec.EdECObjectIdentifiers;
import org.bouncycastle.crypto.params.X448PublicKeyParameters;
import org.bouncycastle.asn1.x9.X9ECParameters;
import org.bouncycastle.asn1.x9.X9ECPoint;
import org.bouncycastle.crypto.params.ECNamedDomainParameters;
import java.io.IOException;
import org.bouncycastle.asn1.DEROctetString;
import org.bouncycastle.internal.asn1.rosstandart.RosstandartObjectIdentifiers;
import org.bouncycastle.asn1.cryptopro.CryptoProObjectIdentifiers;
import org.bouncycastle.asn1.cryptopro.GOST3410PublicKeyAlgParameters;
import org.bouncycastle.crypto.params.ECGOST3410Parameters;
import org.bouncycastle.asn1.ASN1Null;
import org.bouncycastle.asn1.x9.X962Parameters;
import org.bouncycastle.crypto.params.ECPublicKeyParameters;
import org.bouncycastle.asn1.ASN1Integer;
import org.bouncycastle.asn1.x9.X9ObjectIdentifiers;
import org.bouncycastle.asn1.x509.DSAParameter;
import org.bouncycastle.crypto.params.DSAPublicKeyParameters;
import org.bouncycastle.asn1.pkcs.RSAPublicKey;
import org.bouncycastle.asn1.ASN1Encodable;
import org.bouncycastle.asn1.x509.AlgorithmIdentifier;
import org.bouncycastle.asn1.DERNull;
import org.bouncycastle.asn1.pkcs.PKCSObjectIdentifiers;
import org.bouncycastle.crypto.params.RSAKeyParameters;
import org.bouncycastle.asn1.x509.SubjectPublicKeyInfo;
import org.bouncycastle.crypto.params.AsymmetricKeyParameter;
import java.util.Set;

public class SubjectPublicKeyInfoFactory
{
    private static final byte tag_OctetString = 4;
    private static Set cryptoProOids;
    
    private SubjectPublicKeyInfoFactory() {
    }
    
    public static SubjectPublicKeyInfo createSubjectPublicKeyInfo(final AsymmetricKeyParameter asymmetricKeyParameter) throws IOException {
        if (asymmetricKeyParameter instanceof RSAKeyParameters) {
            final RSAKeyParameters rsaKeyParameters = (RSAKeyParameters)asymmetricKeyParameter;
            return new SubjectPublicKeyInfo(new AlgorithmIdentifier(PKCSObjectIdentifiers.rsaEncryption, DERNull.INSTANCE), new RSAPublicKey(rsaKeyParameters.getModulus(), rsaKeyParameters.getExponent()));
        }
        if (asymmetricKeyParameter instanceof DSAPublicKeyParameters) {
            final DSAPublicKeyParameters dsaPublicKeyParameters = (DSAPublicKeyParameters)asymmetricKeyParameter;
            ASN1Encodable asn1Encodable = null;
            final DSAParameters parameters = dsaPublicKeyParameters.getParameters();
            if (parameters != null) {
                asn1Encodable = new DSAParameter(parameters.getP(), parameters.getQ(), parameters.getG());
            }
            return new SubjectPublicKeyInfo(new AlgorithmIdentifier(X9ObjectIdentifiers.id_dsa, asn1Encodable), new ASN1Integer(dsaPublicKeyParameters.getY()));
        }
        if (asymmetricKeyParameter instanceof ECPublicKeyParameters) {
            final ECPublicKeyParameters ecPublicKeyParameters = (ECPublicKeyParameters)asymmetricKeyParameter;
            final ECDomainParameters parameters2 = ecPublicKeyParameters.getParameters();
            X962Parameters x962Parameters;
            if (parameters2 == null) {
                x962Parameters = new X962Parameters(DERNull.INSTANCE);
            }
            else {
                if (parameters2 instanceof ECGOST3410Parameters) {
                    final ECGOST3410Parameters ecgost3410Parameters = (ECGOST3410Parameters)parameters2;
                    final BigInteger bigInteger = ecPublicKeyParameters.getQ().getAffineXCoord().toBigInteger();
                    final BigInteger bigInteger2 = ecPublicKeyParameters.getQ().getAffineYCoord().toBigInteger();
                    final GOST3410PublicKeyAlgParameters gost3410PublicKeyAlgParameters = new GOST3410PublicKeyAlgParameters(ecgost3410Parameters.getPublicKeyParamSet(), ecgost3410Parameters.getDigestParamSet());
                    int n;
                    int n2;
                    ASN1ObjectIdentifier asn1ObjectIdentifier;
                    if (SubjectPublicKeyInfoFactory.cryptoProOids.contains(ecgost3410Parameters.getPublicKeyParamSet())) {
                        n = 64;
                        n2 = 32;
                        asn1ObjectIdentifier = CryptoProObjectIdentifiers.gostR3410_2001;
                    }
                    else if (bigInteger.bitLength() > 256) {
                        n = 128;
                        n2 = 64;
                        asn1ObjectIdentifier = RosstandartObjectIdentifiers.id_tc26_gost_3410_12_512;
                    }
                    else {
                        n = 64;
                        n2 = 32;
                        asn1ObjectIdentifier = RosstandartObjectIdentifiers.id_tc26_gost_3410_12_256;
                    }
                    final byte[] array = new byte[n];
                    extractBytes(array, n / 2, 0, bigInteger);
                    extractBytes(array, n / 2, n2, bigInteger2);
                    try {
                        return new SubjectPublicKeyInfo(new AlgorithmIdentifier(asn1ObjectIdentifier, gost3410PublicKeyAlgParameters), new DEROctetString(array));
                    }
                    catch (final IOException ex) {
                        return null;
                    }
                }
                if (parameters2 instanceof ECNamedDomainParameters) {
                    x962Parameters = new X962Parameters(((ECNamedDomainParameters)parameters2).getName());
                }
                else {
                    x962Parameters = new X962Parameters(new X9ECParameters(parameters2.getCurve(), new X9ECPoint(parameters2.getG(), false), parameters2.getN(), parameters2.getH(), parameters2.getSeed()));
                }
            }
            return new SubjectPublicKeyInfo(new AlgorithmIdentifier(X9ObjectIdentifiers.id_ecPublicKey, x962Parameters), ecPublicKeyParameters.getQ().getEncoded(false));
        }
        if (asymmetricKeyParameter instanceof X448PublicKeyParameters) {
            return new SubjectPublicKeyInfo(new AlgorithmIdentifier(EdECObjectIdentifiers.id_X448), ((X448PublicKeyParameters)asymmetricKeyParameter).getEncoded());
        }
        if (asymmetricKeyParameter instanceof X25519PublicKeyParameters) {
            return new SubjectPublicKeyInfo(new AlgorithmIdentifier(EdECObjectIdentifiers.id_X25519), ((X25519PublicKeyParameters)asymmetricKeyParameter).getEncoded());
        }
        if (asymmetricKeyParameter instanceof Ed448PublicKeyParameters) {
            return new SubjectPublicKeyInfo(new AlgorithmIdentifier(EdECObjectIdentifiers.id_Ed448), ((Ed448PublicKeyParameters)asymmetricKeyParameter).getEncoded());
        }
        if (asymmetricKeyParameter instanceof Ed25519PublicKeyParameters) {
            return new SubjectPublicKeyInfo(new AlgorithmIdentifier(EdECObjectIdentifiers.id_Ed25519), ((Ed25519PublicKeyParameters)asymmetricKeyParameter).getEncoded());
        }
        if (asymmetricKeyParameter instanceof HSSPublicKeyParameters) {
            final HSSPublicKeyParameters hssPublicKeyParameters = (HSSPublicKeyParameters)asymmetricKeyParameter;
            final byte[] build = Composer.compose().u32str(hssPublicKeyParameters.getL()).bytes(hssPublicKeyParameters.getLMSPublicKey()).build();
            return new SubjectPublicKeyInfo(new AlgorithmIdentifier(PKCSObjectIdentifiers.id_alg_hss_lms_hashsig), Arrays.concatenate(new byte[] { 4, (byte)build.length }, build));
        }
        if (asymmetricKeyParameter instanceof LMSPublicKeyParameters) {
            final byte[] build2 = Composer.compose().u32str(1).bytes((Encodable)asymmetricKeyParameter).build();
            return new SubjectPublicKeyInfo(new AlgorithmIdentifier(PKCSObjectIdentifiers.id_alg_hss_lms_hashsig), Arrays.concatenate(new byte[] { 4, (byte)build2.length }, build2));
        }
        throw new IOException("key parameters not recognized");
    }
    
    private static void extractBytes(final byte[] array, final int n, final int n2, final BigInteger bigInteger) {
        byte[] byteArray = bigInteger.toByteArray();
        if (byteArray.length < n) {
            final byte[] array2 = new byte[n];
            System.arraycopy(byteArray, 0, array2, array2.length - byteArray.length, byteArray.length);
            byteArray = array2;
        }
        for (int i = 0; i != n; ++i) {
            array[n2 + i] = byteArray[byteArray.length - 1 - i];
        }
    }
    
    static {
        (SubjectPublicKeyInfoFactory.cryptoProOids = new HashSet(5)).add(CryptoProObjectIdentifiers.gostR3410_2001_CryptoPro_A);
        SubjectPublicKeyInfoFactory.cryptoProOids.add(CryptoProObjectIdentifiers.gostR3410_2001_CryptoPro_B);
        SubjectPublicKeyInfoFactory.cryptoProOids.add(CryptoProObjectIdentifiers.gostR3410_2001_CryptoPro_C);
        SubjectPublicKeyInfoFactory.cryptoProOids.add(CryptoProObjectIdentifiers.gostR3410_2001_CryptoPro_XchA);
        SubjectPublicKeyInfoFactory.cryptoProOids.add(CryptoProObjectIdentifiers.gostR3410_2001_CryptoPro_XchB);
    }
}