package org.bouncycastle.jcajce.provider.symmetric;
import org.bouncycastle.crypto.BlockCipher;
import org.bouncycastle.crypto.CipherKeyGenerator;
import org.bouncycastle.crypto.engines.TwofishEngine;
import org.bouncycastle.crypto.macs.GMac;
import org.bouncycastle.crypto.modes.CBCBlockCipher;
import org.bouncycastle.crypto.modes.GCMBlockCipher;
import org.bouncycastle.jcajce.provider.config.ConfigurableProvider;
import org.bouncycastle.jcajce.provider.symmetric.util.BaseBlockCipher;
import org.bouncycastle.jcajce.provider.symmetric.util.BaseKeyGenerator;
import org.bouncycastle.jcajce.provider.symmetric.util.BaseMac;
import org.bouncycastle.jcajce.provider.symmetric.util.BlockCipherProvider;
import org.bouncycastle.jcajce.provider.symmetric.util.IvAlgorithmParameters;
import org.bouncycastle.jcajce.provider.symmetric.util.PBESecretKeyFactory;
public final class Twofish
{
private Twofish()
{
}
public static class ECB
extends BaseBlockCipher
{
public ECB()
{
super(new BlockCipherProvider()
{
public BlockCipher get()
{
return new TwofishEngine();
}
});
}
}
public static class KeyGen
extends BaseKeyGenerator
{
public KeyGen()
{
super("Twofish", 256, new CipherKeyGenerator());
}
}
public static class GMAC
extends BaseMac
{
public GMAC()
{
super(new GMac(new GCMBlockCipher(new TwofishEngine())));
}
}
/**
* PBEWithSHAAndTwofish-CBC
*/
static public class PBEWithSHAKeyFactory
extends PBESecretKeyFactory
{
public PBEWithSHAKeyFactory()
{
super("PBEwithSHAandTwofish-CBC", null, true, PKCS12, SHA1, 256, 128);
}
}
/**
* PBEWithSHAAndTwofish-CBC
*/
static public class PBEWithSHA
extends BaseBlockCipher
{
public PBEWithSHA()
{
super(new CBCBlockCipher(new TwofishEngine()));
}
}
public static class AlgParams
extends IvAlgorithmParameters
{
protected String engineToString()
{
return "Twofish IV";
}
}
public static class Mappings
extends SymmetricAlgorithmProvider
{
private static final String PREFIX = Twofish.class.getName();
public Mappings()
{
}
public void configure(ConfigurableProvider provider)
{
provider.addAlgorithm("Cipher.Twofish", PREFIX + "$ECB");
provider.addAlgorithm("KeyGenerator.Twofish", PREFIX + "$KeyGen");
provider.addAlgorithm("AlgorithmParameters.Twofish", PREFIX + "$AlgParams");
provider.addAlgorithm("Alg.Alias.AlgorithmParameters.PBEWITHSHAANDTWOFISH", "PKCS12PBE");
provider.addAlgorithm("Alg.Alias.AlgorithmParameters.PBEWITHSHAANDTWOFISH-CBC", "PKCS12PBE");
provider.addAlgorithm("Cipher.PBEWITHSHAANDTWOFISH-CBC", PREFIX + "$PBEWithSHA");
provider.addAlgorithm("SecretKeyFactory.PBEWITHSHAANDTWOFISH-CBC", PREFIX + "$PBEWithSHAKeyFactory");
addGMacAlgorithm(provider, "Twofish", PREFIX + "$GMAC", PREFIX + "$KeyGen");
}
}
}