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

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

import java.util.HashMap;
import org.bouncycastle.crypto.AsymmetricCipherKeyPair;
import java.security.PrivateKey;
import java.security.PublicKey;
import org.bouncycastle.pqc.crypto.cmce.CMCEPrivateKeyParameters;
import org.bouncycastle.pqc.crypto.cmce.CMCEPublicKeyParameters;
import java.security.KeyPair;
import org.bouncycastle.util.Strings;
import org.bouncycastle.jcajce.util.SpecUtil;
import org.bouncycastle.pqc.jcajce.spec.CMCEParameterSpec;
import java.security.InvalidAlgorithmParameterException;
import org.bouncycastle.crypto.KeyGenerationParameters;
import org.bouncycastle.pqc.crypto.cmce.CMCEParameters;
import java.security.spec.AlgorithmParameterSpec;
import org.bouncycastle.crypto.CryptoServicesRegistrar;
import java.security.SecureRandom;
import org.bouncycastle.pqc.crypto.cmce.CMCEKeyPairGenerator;
import org.bouncycastle.pqc.crypto.cmce.CMCEKeyGenerationParameters;
import java.util.Map;
import java.security.KeyPairGenerator;

public class CMCEKeyPairGeneratorSpi extends KeyPairGenerator
{
    private static Map parameters;
    CMCEKeyGenerationParameters param;
    CMCEKeyPairGenerator engine;
    SecureRandom random;
    boolean initialised;
    
    public CMCEKeyPairGeneratorSpi() {
        super("CMCE");
        this.engine = new CMCEKeyPairGenerator();
        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 CMCEKeyGenerationParameters(secureRandom, (CMCEParameters)CMCEKeyPairGeneratorSpi.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 CMCEParameterSpec) {
            return ((CMCEParameterSpec)algorithmParameterSpec).getName();
        }
        return Strings.toLowerCase(SpecUtil.getNameFrom(algorithmParameterSpec));
    }
    
    @Override
    public KeyPair generateKeyPair() {
        if (!this.initialised) {
            this.param = new CMCEKeyGenerationParameters(this.random, CMCEParameters.mceliece8192128fr3);
            this.engine.init(this.param);
            this.initialised = true;
        }
        final AsymmetricCipherKeyPair generateKeyPair = this.engine.generateKeyPair();
        return new KeyPair(new BCCMCEPublicKey((CMCEPublicKeyParameters)generateKeyPair.getPublic()), new BCCMCEPrivateKey((CMCEPrivateKeyParameters)generateKeyPair.getPrivate()));
    }
    
    static {
        (CMCEKeyPairGeneratorSpi.parameters = new HashMap()).put(CMCEParameterSpec.mceliece348864.getName(), CMCEParameters.mceliece348864r3);
        CMCEKeyPairGeneratorSpi.parameters.put(CMCEParameterSpec.mceliece348864f.getName(), CMCEParameters.mceliece348864fr3);
        CMCEKeyPairGeneratorSpi.parameters.put(CMCEParameterSpec.mceliece460896.getName(), CMCEParameters.mceliece460896r3);
        CMCEKeyPairGeneratorSpi.parameters.put(CMCEParameterSpec.mceliece460896f.getName(), CMCEParameters.mceliece460896fr3);
        CMCEKeyPairGeneratorSpi.parameters.put(CMCEParameterSpec.mceliece6688128.getName(), CMCEParameters.mceliece6688128r3);
        CMCEKeyPairGeneratorSpi.parameters.put(CMCEParameterSpec.mceliece6688128f.getName(), CMCEParameters.mceliece6688128fr3);
        CMCEKeyPairGeneratorSpi.parameters.put(CMCEParameterSpec.mceliece6960119.getName(), CMCEParameters.mceliece6960119r3);
        CMCEKeyPairGeneratorSpi.parameters.put(CMCEParameterSpec.mceliece6960119f.getName(), CMCEParameters.mceliece6960119fr3);
        CMCEKeyPairGeneratorSpi.parameters.put(CMCEParameterSpec.mceliece8192128.getName(), CMCEParameters.mceliece8192128r3);
        CMCEKeyPairGeneratorSpi.parameters.put(CMCEParameterSpec.mceliece8192128f.getName(), CMCEParameters.mceliece8192128fr3);
    }
}