package org.bouncycastle.pqc.jcajce.provider.mceliece;
import java.security.InvalidAlgorithmParameterException;
import java.security.KeyPair;
import java.security.KeyPairGenerator;
import java.security.SecureRandom;
import java.security.spec.AlgorithmParameterSpec;
import org.bouncycastle.crypto.AsymmetricCipherKeyPair;
import org.bouncycastle.pqc.crypto.mceliece.McElieceCCA2KeyGenerationParameters;
import org.bouncycastle.pqc.crypto.mceliece.McElieceCCA2KeyPairGenerator;
import org.bouncycastle.pqc.crypto.mceliece.McElieceCCA2Parameters;
import org.bouncycastle.pqc.crypto.mceliece.McElieceCCA2PrivateKeyParameters;
import org.bouncycastle.pqc.crypto.mceliece.McElieceCCA2PublicKeyParameters;
import org.bouncycastle.pqc.crypto.mceliece.McElieceKeyGenerationParameters;
import org.bouncycastle.pqc.crypto.mceliece.McElieceKeyPairGenerator;
import org.bouncycastle.pqc.crypto.mceliece.McElieceParameters;
import org.bouncycastle.pqc.crypto.mceliece.McEliecePrivateKeyParameters;
import org.bouncycastle.pqc.crypto.mceliece.McEliecePublicKeyParameters;
import org.bouncycastle.pqc.jcajce.spec.ECCKeyGenParameterSpec;
import org.bouncycastle.pqc.jcajce.spec.McElieceCCA2ParameterSpec;
public abstract class McElieceKeyPairGeneratorSpi
extends KeyPairGenerator
{
public McElieceKeyPairGeneratorSpi(
String algorithmName)
{
super(algorithmName);
}
/**
*
*
*
*/
public static class McElieceCCA2
extends McElieceKeyPairGeneratorSpi
{
McElieceCCA2KeyPairGenerator kpg;
public McElieceCCA2()
{
super("McElieceCCA-2");
}
public McElieceCCA2(String s)
{
super(s);
}
public void initialize(AlgorithmParameterSpec params)
throws InvalidAlgorithmParameterException
{
kpg = new McElieceCCA2KeyPairGenerator();
super.initialize(params);
ECCKeyGenParameterSpec ecc = (ECCKeyGenParameterSpec)params;
McElieceCCA2KeyGenerationParameters mccca2KGParams = new McElieceCCA2KeyGenerationParameters(new SecureRandom(), new McElieceCCA2Parameters(ecc.getM(), ecc.getT()));
kpg.init(mccca2KGParams);
}
public void initialize(int keySize, SecureRandom random)
{
McElieceCCA2ParameterSpec paramSpec = new McElieceCCA2ParameterSpec();
// call the initializer with the chosen parameters
try
{
this.initialize(paramSpec);
}
catch (InvalidAlgorithmParameterException ae)
{
}
}
public KeyPair generateKeyPair()
{
AsymmetricCipherKeyPair generateKeyPair = kpg.generateKeyPair();
McElieceCCA2PrivateKeyParameters sk = (McElieceCCA2PrivateKeyParameters)generateKeyPair.getPrivate();
McElieceCCA2PublicKeyParameters pk = (McElieceCCA2PublicKeyParameters)generateKeyPair.getPublic();
return new KeyPair(new BCMcElieceCCA2PublicKey(pk), new BCMcElieceCCA2PrivateKey(sk));
}
}
/**
*
*
*
*/
public static class McEliece
extends McElieceKeyPairGeneratorSpi
{
McElieceKeyPairGenerator kpg;
public McEliece()
{
super("McEliece");
}
public void initialize(AlgorithmParameterSpec params)
throws InvalidAlgorithmParameterException
{
kpg = new McElieceKeyPairGenerator();
super.initialize(params);
ECCKeyGenParameterSpec ecc = (ECCKeyGenParameterSpec)params;
McElieceKeyGenerationParameters mccKGParams = new McElieceKeyGenerationParameters(new SecureRandom(), new McElieceParameters(ecc.getM(), ecc.getT()));
kpg.init(mccKGParams);
}
public void initialize(int keySize, SecureRandom random)
{
ECCKeyGenParameterSpec paramSpec = new ECCKeyGenParameterSpec();
// call the initializer with the chosen parameters
try
{
this.initialize(paramSpec);
}
catch (InvalidAlgorithmParameterException ae)
{
}
}
public KeyPair generateKeyPair()
{
AsymmetricCipherKeyPair generateKeyPair = kpg.generateKeyPair();
McEliecePrivateKeyParameters sk = (McEliecePrivateKeyParameters)generateKeyPair.getPrivate();
McEliecePublicKeyParameters pk = (McEliecePublicKeyParameters)generateKeyPair.getPublic();
return new KeyPair(new BCMcEliecePublicKey(pk), new BCMcEliecePrivateKey(sk));
}
}
}