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

package org.bouncycastle.pqc.jcajce.provider.picnic;

import java.util.HashMap;
import org.bouncycastle.crypto.AsymmetricCipherKeyPair;
import java.security.PrivateKey;
import java.security.PublicKey;
import org.bouncycastle.pqc.crypto.picnic.PicnicPrivateKeyParameters;
import org.bouncycastle.pqc.crypto.picnic.PicnicPublicKeyParameters;
import java.security.KeyPair;
import org.bouncycastle.util.Strings;
import org.bouncycastle.jcajce.util.SpecUtil;
import org.bouncycastle.pqc.jcajce.spec.PicnicParameterSpec;
import java.security.InvalidAlgorithmParameterException;
import org.bouncycastle.crypto.KeyGenerationParameters;
import org.bouncycastle.pqc.crypto.picnic.PicnicParameters;
import java.security.spec.AlgorithmParameterSpec;
import org.bouncycastle.crypto.CryptoServicesRegistrar;
import java.security.SecureRandom;
import org.bouncycastle.pqc.crypto.picnic.PicnicKeyPairGenerator;
import org.bouncycastle.pqc.crypto.picnic.PicnicKeyGenerationParameters;
import java.util.Map;
import java.security.KeyPairGenerator;

public class PicnicKeyPairGeneratorSpi extends KeyPairGenerator
{
    private static Map parameters;
    PicnicKeyGenerationParameters param;
    PicnicKeyPairGenerator engine;
    SecureRandom random;
    boolean initialised;
    
    public PicnicKeyPairGeneratorSpi() {
        super("Picnic");
        this.engine = new PicnicKeyPairGenerator();
        this.random = CryptoServicesRegistrar.getSecureRandom();
        this.initialised = false;
    }
    
    @Override
    public void initialize(final int n, final SecureRandom secureRandom) {
        throw new IllegalArgumentException("use AlgorithmParameterSpec");
    }
    
    @Override
    public void initialize(final AlgorithmParameterSpec obj, final SecureRandom secureRandom) throws InvalidAlgorithmParameterException {
        final String nameFromParams = getNameFromParams(obj);
        if (nameFromParams != null) {
            this.param = new PicnicKeyGenerationParameters(secureRandom, (PicnicParameters)PicnicKeyPairGeneratorSpi.parameters.get(nameFromParams));
            this.engine.init(this.param);
            this.initialised = true;
            return;
        }
        throw new InvalidAlgorithmParameterException("invalid ParameterSpec: " + obj);
    }
    
    private static String getNameFromParams(final AlgorithmParameterSpec algorithmParameterSpec) {
        if (algorithmParameterSpec instanceof PicnicParameterSpec) {
            return ((PicnicParameterSpec)algorithmParameterSpec).getName();
        }
        return Strings.toLowerCase(SpecUtil.getNameFrom(algorithmParameterSpec));
    }
    
    @Override
    public KeyPair generateKeyPair() {
        if (!this.initialised) {
            this.param = new PicnicKeyGenerationParameters(this.random, PicnicParameters.picnicl3ur);
            this.engine.init(this.param);
            this.initialised = true;
        }
        final AsymmetricCipherKeyPair generateKeyPair = this.engine.generateKeyPair();
        return new KeyPair(new BCPicnicPublicKey((PicnicPublicKeyParameters)generateKeyPair.getPublic()), new BCPicnicPrivateKey((PicnicPrivateKeyParameters)generateKeyPair.getPrivate()));
    }
    
    static {
        (PicnicKeyPairGeneratorSpi.parameters = new HashMap()).put(PicnicParameterSpec.picnicl1fs.getName(), PicnicParameters.picnicl1fs);
        PicnicKeyPairGeneratorSpi.parameters.put(PicnicParameterSpec.picnicl1ur.getName(), PicnicParameters.picnicl1ur);
        PicnicKeyPairGeneratorSpi.parameters.put(PicnicParameterSpec.picnicl3fs.getName(), PicnicParameters.picnicl3fs);
        PicnicKeyPairGeneratorSpi.parameters.put(PicnicParameterSpec.picnicl3ur.getName(), PicnicParameters.picnicl3ur);
        PicnicKeyPairGeneratorSpi.parameters.put(PicnicParameterSpec.picnicl5fs.getName(), PicnicParameters.picnicl5fs);
        PicnicKeyPairGeneratorSpi.parameters.put(PicnicParameterSpec.picnicl5ur.getName(), PicnicParameters.picnicl5ur);
        PicnicKeyPairGeneratorSpi.parameters.put(PicnicParameterSpec.picnic3l1.getName(), PicnicParameters.picnic3l1);
        PicnicKeyPairGeneratorSpi.parameters.put(PicnicParameterSpec.picnic3l3.getName(), PicnicParameters.picnic3l3);
        PicnicKeyPairGeneratorSpi.parameters.put(PicnicParameterSpec.picnic3l5.getName(), PicnicParameters.picnic3l5);
        PicnicKeyPairGeneratorSpi.parameters.put(PicnicParameterSpec.picnicl1full.getName(), PicnicParameters.picnicl1full);
        PicnicKeyPairGeneratorSpi.parameters.put(PicnicParameterSpec.picnicl3full.getName(), PicnicParameters.picnicl3full);
        PicnicKeyPairGeneratorSpi.parameters.put(PicnicParameterSpec.picnicl5full.getName(), PicnicParameters.picnicl5full);
    }
}