package org.bouncycastle.jcajce.provider.symmetric;
import java.security.AlgorithmParameters;
import java.security.InvalidAlgorithmParameterException;
import java.security.SecureRandom;
import java.security.spec.AlgorithmParameterSpec;
import javax.crypto.spec.IvParameterSpec;
import org.bouncycastle.asn1.kisa.KISAObjectIdentifiers;
import org.bouncycastle.crypto.BlockCipher;
import org.bouncycastle.crypto.CipherKeyGenerator;
import org.bouncycastle.crypto.engines.SEEDEngine;
import org.bouncycastle.crypto.engines.SEEDWrapEngine;
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.BaseAlgorithmParameterGenerator;
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.BaseWrapCipher;
import org.bouncycastle.jcajce.provider.symmetric.util.BlockCipherProvider;
import org.bouncycastle.jcajce.provider.symmetric.util.IvAlgorithmParameters;
import org.bouncycastle.jce.provider.BouncyCastleProvider;
public final class SEED
{
private SEED()
{
}
public static class ECB
extends BaseBlockCipher
{
public ECB()
{
super(new BlockCipherProvider()
{
public BlockCipher get()
{
return new SEEDEngine();
}
});
}
}
public static class CBC
extends BaseBlockCipher
{
public CBC()
{
super(new CBCBlockCipher(new SEEDEngine()), 128);
}
}
public static class Wrap
extends BaseWrapCipher
{
public Wrap()
{
super(new SEEDWrapEngine());
}
}
public static class KeyGen
extends BaseKeyGenerator
{
public KeyGen()
{
super("SEED", 128, new CipherKeyGenerator());
}
}
public static class GMAC
extends BaseMac
{
public GMAC()
{
super(new GMac(new GCMBlockCipher(new SEEDEngine())));
}
}
public static class AlgParamGen
extends BaseAlgorithmParameterGenerator
{
protected void engineInit(
AlgorithmParameterSpec genParamSpec,
SecureRandom random)
throws InvalidAlgorithmParameterException
{
throw new InvalidAlgorithmParameterException("No supported AlgorithmParameterSpec for SEED parameter generation.");
}
protected AlgorithmParameters engineGenerateParameters()
{
byte[] iv = new byte[16];
if (random == null)
{
random = new SecureRandom();
}
random.nextBytes(iv);
AlgorithmParameters params;
try
{
params = AlgorithmParameters.getInstance("SEED", BouncyCastleProvider.PROVIDER_NAME);
params.init(new IvParameterSpec(iv));
}
catch (Exception e)
{
throw new RuntimeException(e.getMessage());
}
return params;
}
}
public static class AlgParams
extends IvAlgorithmParameters
{
protected String engineToString()
{
return "SEED IV";
}
}
public static class Mappings
extends SymmetricAlgorithmProvider
{
private static final String PREFIX = SEED.class.getName();
public Mappings()
{
}
public void configure(ConfigurableProvider provider)
{
provider.addAlgorithm("AlgorithmParameters.SEED", PREFIX + "$AlgParams");
provider.addAlgorithm("Alg.Alias.AlgorithmParameters." + KISAObjectIdentifiers.id_seedCBC, "SEED");
provider.addAlgorithm("AlgorithmParameterGenerator.SEED", PREFIX + "$AlgParamGen");
provider.addAlgorithm("Alg.Alias.AlgorithmParameterGenerator." + KISAObjectIdentifiers.id_seedCBC, "SEED");
provider.addAlgorithm("Cipher.SEED", PREFIX + "$ECB");
provider.addAlgorithm("Cipher." + KISAObjectIdentifiers.id_seedCBC, PREFIX + "$CBC");
provider.addAlgorithm("Cipher.SEEDWRAP", PREFIX + "$Wrap");
provider.addAlgorithm("Alg.Alias.Cipher." + KISAObjectIdentifiers.id_npki_app_cmsSeed_wrap, "SEEDWRAP");
provider.addAlgorithm("KeyGenerator.SEED", PREFIX + "$KeyGen");
provider.addAlgorithm("KeyGenerator." + KISAObjectIdentifiers.id_seedCBC, PREFIX + "$KeyGen");
provider.addAlgorithm("KeyGenerator." + KISAObjectIdentifiers.id_npki_app_cmsSeed_wrap, PREFIX + "$KeyGen");
addGMacAlgorithm(provider, "SEED", PREFIX + "$GMAC", PREFIX + "$KeyGen");
}
}
}