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The Bouncy Castle Crypto package is a Java implementation of cryptographic algorithms. This jar contains JCE provider and lightweight API for the Bouncy Castle Cryptography APIs for JDK 1.4.
package org.bouncycastle.jcajce.provider.symmetric;
import java.security.AlgorithmParameters;
import java.security.InvalidAlgorithmParameterException;
import java.security.SecureRandom;
import java.security.spec.AlgorithmParameterSpec;
import java.security.spec.InvalidKeySpecException;
import java.security.spec.KeySpec;
import javax.crypto.SecretKey;
import javax.crypto.spec.DESKeySpec;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.PBEKeySpec;
import javax.crypto.spec.SecretKeySpec;
import org.bouncycastle.asn1.ASN1ObjectIdentifier;
import org.bouncycastle.asn1.pkcs.PKCSObjectIdentifiers;
import org.bouncycastle.crypto.CipherParameters;
import org.bouncycastle.crypto.CryptoServicesRegistrar;
import org.bouncycastle.crypto.KeyGenerationParameters;
import org.bouncycastle.crypto.PasswordConverter;
import org.bouncycastle.crypto.engines.DESEngine;
import org.bouncycastle.crypto.engines.RFC3211WrapEngine;
import org.bouncycastle.crypto.generators.DESKeyGenerator;
import org.bouncycastle.crypto.macs.CBCBlockCipherMac;
import org.bouncycastle.crypto.macs.CFBBlockCipherMac;
import org.bouncycastle.crypto.macs.CMac;
import org.bouncycastle.crypto.macs.ISO9797Alg3Mac;
import org.bouncycastle.crypto.modes.CBCBlockCipher;
import org.bouncycastle.crypto.paddings.ISO7816d4Padding;
import org.bouncycastle.crypto.params.DESParameters;
import org.bouncycastle.crypto.params.KeyParameter;
import org.bouncycastle.crypto.params.ParametersWithIV;
import org.bouncycastle.internal.asn1.oiw.OIWObjectIdentifiers;
import org.bouncycastle.jcajce.PBKDF1Key;
import org.bouncycastle.jcajce.provider.config.ConfigurableProvider;
import org.bouncycastle.jcajce.provider.symmetric.util.BCPBEKey;
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.BaseSecretKeyFactory;
import org.bouncycastle.jcajce.provider.symmetric.util.BaseWrapCipher;
import org.bouncycastle.jcajce.provider.symmetric.util.PBE;
import org.bouncycastle.jcajce.provider.util.AlgorithmProvider;
public final class DES
{
private DES()
{
}
static public class ECB
extends BaseBlockCipher
{
public ECB()
{
super(new DESEngine());
}
}
static public class CBC
extends BaseBlockCipher
{
public CBC()
{
super(new CBCBlockCipher(new DESEngine()), 64);
}
}
/**
* DES CFB8
*/
public static class DESCFB8
extends BaseMac
{
public DESCFB8()
{
super(new CFBBlockCipherMac(new DESEngine()));
}
}
/**
* DES64
*/
public static class DES64
extends BaseMac
{
public DES64()
{
super(new CBCBlockCipherMac(new DESEngine(), 64));
}
}
/**
* DES64with7816-4Padding
*/
public static class DES64with7816d4
extends BaseMac
{
public DES64with7816d4()
{
super(new CBCBlockCipherMac(new DESEngine(), 64, new ISO7816d4Padding()));
}
}
public static class CBCMAC
extends BaseMac
{
public CBCMAC()
{
super(new CBCBlockCipherMac(new DESEngine()));
}
}
static public class CMAC
extends BaseMac
{
public CMAC()
{
super(new CMac(new DESEngine()));
}
}
/**
* DES9797Alg3with7816-4Padding
*/
public static class DES9797Alg3with7816d4
extends BaseMac
{
public DES9797Alg3with7816d4()
{
super(new ISO9797Alg3Mac(new DESEngine(), new ISO7816d4Padding()));
}
}
/**
* DES9797Alg3
*/
public static class DES9797Alg3
extends BaseMac
{
public DES9797Alg3()
{
super(new ISO9797Alg3Mac(new DESEngine()));
}
}
public static class RFC3211
extends BaseWrapCipher
{
public RFC3211()
{
super(new RFC3211WrapEngine(new DESEngine()), 8);
}
}
public static class AlgParamGen
extends BaseAlgorithmParameterGenerator
{
protected void engineInit(
AlgorithmParameterSpec genParamSpec,
SecureRandom random)
throws InvalidAlgorithmParameterException
{
throw new InvalidAlgorithmParameterException("No supported AlgorithmParameterSpec for DES parameter generation.");
}
protected AlgorithmParameters engineGenerateParameters()
{
byte[] iv = new byte[8];
if (random == null)
{
random = CryptoServicesRegistrar.getSecureRandom();
}
random.nextBytes(iv);
AlgorithmParameters params;
try
{
params = createParametersInstance("DES");
params.init(new IvParameterSpec(iv));
}
catch (Exception e)
{
throw new RuntimeException(e.getMessage());
}
return params;
}
}
/**
* DES - the default for this is to generate a key in
* a-b-a format that's 24 bytes long but has 16 bytes of
* key material (the first 8 bytes is repeated as the last
* 8 bytes). If you give it a size, you'll get just what you
* asked for.
*/
public static class KeyGenerator
extends BaseKeyGenerator
{
public KeyGenerator()
{
super("DES", 64, new DESKeyGenerator());
}
protected void engineInit(
int keySize,
SecureRandom random)
{
super.engineInit(keySize, random);
}
protected SecretKey engineGenerateKey()
{
if (uninitialised)
{
engine.init(new KeyGenerationParameters(CryptoServicesRegistrar.getSecureRandom(), defaultKeySize));
uninitialised = false;
}
return new SecretKeySpec(engine.generateKey(), algName);
}
}
static public class KeyFactory
extends BaseSecretKeyFactory
{
public KeyFactory()
{
super("DES", null);
}
protected KeySpec engineGetKeySpec(
SecretKey key,
Class keySpec)
throws InvalidKeySpecException
{
if (keySpec == null)
{
throw new InvalidKeySpecException("keySpec parameter is null");
}
if (key == null)
{
throw new InvalidKeySpecException("key parameter is null");
}
if (SecretKeySpec.class.isAssignableFrom(keySpec))
{
return new SecretKeySpec(key.getEncoded(), algName);
}
else if (DESKeySpec.class.isAssignableFrom(keySpec))
{
byte[] bytes = key.getEncoded();
try
{
return new DESKeySpec(bytes);
}
catch (Exception e)
{
throw new InvalidKeySpecException(e.toString());
}
}
throw new InvalidKeySpecException("Invalid KeySpec");
}
protected SecretKey engineGenerateSecret(
KeySpec keySpec)
throws InvalidKeySpecException
{
if (keySpec instanceof DESKeySpec)
{
DESKeySpec desKeySpec = (DESKeySpec)keySpec;
return new SecretKeySpec(desKeySpec.getKey(), "DES");
}
return super.engineGenerateSecret(keySpec);
}
}
static public class DESPBEKeyFactory
extends BaseSecretKeyFactory
{
private boolean forCipher;
private int scheme;
private int digest;
private int keySize;
private int ivSize;
public DESPBEKeyFactory(
String algorithm,
ASN1ObjectIdentifier oid,
boolean forCipher,
int scheme,
int digest,
int keySize,
int ivSize)
{
super(algorithm, oid);
this.forCipher = forCipher;
this.scheme = scheme;
this.digest = digest;
this.keySize = keySize;
this.ivSize = ivSize;
}
protected SecretKey engineGenerateSecret(
KeySpec keySpec)
throws InvalidKeySpecException
{
if (keySpec instanceof PBEKeySpec)
{
PBEKeySpec pbeSpec = (PBEKeySpec)keySpec;
CipherParameters param;
if (pbeSpec.getSalt() == null)
{
if (scheme == PKCS5S1 || scheme == PKCS5S1_UTF8)
{
return new PBKDF1Key(pbeSpec.getPassword(),
scheme == PKCS5S1 ? PasswordConverter.ASCII : PasswordConverter.UTF8);
}
else
{
return new BCPBEKey(this.algName, this.algOid, scheme, digest, keySize, ivSize, pbeSpec, null);
}
}
if (forCipher)
{
param = PBE.Util.makePBEParameters(pbeSpec, scheme, digest, keySize, ivSize);
}
else
{
param = PBE.Util.makePBEMacParameters(pbeSpec, scheme, digest, keySize);
}
KeyParameter kParam;
if (param instanceof ParametersWithIV)
{
kParam = (KeyParameter)((ParametersWithIV)param).getParameters();
}
else
{
kParam = (KeyParameter)param;
}
DESParameters.setOddParity(kParam.getKey());
return new BCPBEKey(this.algName, this.algOid, scheme, digest, keySize, ivSize, pbeSpec, param);
}
throw new InvalidKeySpecException("Invalid KeySpec");
}
}
/**
* PBEWithMD2AndDES
*/
static public class PBEWithMD2KeyFactory
extends DESPBEKeyFactory
{
public PBEWithMD2KeyFactory()
{
super("PBEwithMD2andDES", PKCSObjectIdentifiers.pbeWithMD2AndDES_CBC, true, PKCS5S1, MD2, 64, 64);
}
}
/**
* PBEWithMD5AndDES
*/
static public class PBEWithMD5KeyFactory
extends DESPBEKeyFactory
{
public PBEWithMD5KeyFactory()
{
super("PBEwithMD5andDES", PKCSObjectIdentifiers.pbeWithMD5AndDES_CBC, true, PKCS5S1, MD5, 64, 64);
}
}
/**
* PBEWithSHA1AndDES
*/
static public class PBEWithSHA1KeyFactory
extends DESPBEKeyFactory
{
public PBEWithSHA1KeyFactory()
{
super("PBEwithSHA1andDES", PKCSObjectIdentifiers.pbeWithSHA1AndDES_CBC, true, PKCS5S1, SHA1, 64, 64);
}
}
/**
* PBEWithMD2AndDES
*/
static public class PBEWithMD2
extends BaseBlockCipher
{
public PBEWithMD2()
{
super(new CBCBlockCipher(new DESEngine()), PKCS5S1, MD2, 64, 8);
}
}
/**
* PBEWithMD5AndDES
*/
static public class PBEWithMD5
extends BaseBlockCipher
{
public PBEWithMD5()
{
super(new CBCBlockCipher(new DESEngine()), PKCS5S1, MD5, 64, 8);
}
}
/**
* PBEWithSHA1AndDES
*/
static public class PBEWithSHA1
extends BaseBlockCipher
{
public PBEWithSHA1()
{
super(new CBCBlockCipher(new DESEngine()), PKCS5S1, SHA1, 64, 8);
}
}
public static class Mappings
extends AlgorithmProvider
{
private static final String PREFIX = DES.class.getName();
private static final String PACKAGE = "org.bouncycastle.jcajce.provider.symmetric"; // JDK 1.2
public Mappings()
{
}
public void configure(ConfigurableProvider provider)
{
provider.addAlgorithm("Cipher.DES", PREFIX + "$ECB");
provider.addAlgorithm("Cipher", OIWObjectIdentifiers.desCBC, PREFIX + "$CBC");
addAlias(provider, OIWObjectIdentifiers.desCBC, "DES");
provider.addAlgorithm("Cipher.DESRFC3211WRAP", PREFIX + "$RFC3211");
provider.addAlgorithm("KeyGenerator.DES", PREFIX + "$KeyGenerator");
provider.addAlgorithm("SecretKeyFactory.DES", PREFIX + "$KeyFactory");
provider.addAlgorithm("Mac.DESCMAC", PREFIX + "$CMAC");
provider.addAlgorithm("Mac.DESMAC", PREFIX + "$CBCMAC");
provider.addAlgorithm("Alg.Alias.Mac.DES", "DESMAC");
provider.addAlgorithm("Mac.DESMAC/CFB8", PREFIX + "$DESCFB8");
provider.addAlgorithm("Alg.Alias.Mac.DES/CFB8", "DESMAC/CFB8");
provider.addAlgorithm("Mac.DESMAC64", PREFIX + "$DES64");
provider.addAlgorithm("Alg.Alias.Mac.DES64", "DESMAC64");
provider.addAlgorithm("Mac.DESMAC64WITHISO7816-4PADDING", PREFIX + "$DES64with7816d4");
provider.addAlgorithm("Alg.Alias.Mac.DES64WITHISO7816-4PADDING", "DESMAC64WITHISO7816-4PADDING");
provider.addAlgorithm("Alg.Alias.Mac.DESISO9797ALG1MACWITHISO7816-4PADDING", "DESMAC64WITHISO7816-4PADDING");
provider.addAlgorithm("Alg.Alias.Mac.DESISO9797ALG1WITHISO7816-4PADDING", "DESMAC64WITHISO7816-4PADDING");
provider.addAlgorithm("Mac.DESWITHISO9797", PREFIX + "$DES9797Alg3");
provider.addAlgorithm("Alg.Alias.Mac.DESISO9797MAC", "DESWITHISO9797");
provider.addAlgorithm("Mac.ISO9797ALG3MAC", PREFIX + "$DES9797Alg3");
provider.addAlgorithm("Alg.Alias.Mac.ISO9797ALG3", "ISO9797ALG3MAC");
provider.addAlgorithm("Mac.ISO9797ALG3WITHISO7816-4PADDING", PREFIX + "$DES9797Alg3with7816d4");
provider.addAlgorithm("Alg.Alias.Mac.ISO9797ALG3MACWITHISO7816-4PADDING", "ISO9797ALG3WITHISO7816-4PADDING");
provider.addAlgorithm("AlgorithmParameters.DES", PACKAGE + ".util.IvAlgorithmParameters");
provider.addAlgorithm("Alg.Alias.AlgorithmParameters", OIWObjectIdentifiers.desCBC, "DES");
provider.addAlgorithm("AlgorithmParameterGenerator.DES", PREFIX + "$AlgParamGen");
provider.addAlgorithm("Alg.Alias.AlgorithmParameterGenerator." + OIWObjectIdentifiers.desCBC, "DES");
provider.addAlgorithm("Cipher.PBEWITHMD2ANDDES", PREFIX + "$PBEWithMD2");
provider.addAlgorithm("Cipher.PBEWITHMD5ANDDES", PREFIX + "$PBEWithMD5");
provider.addAlgorithm("Cipher.PBEWITHSHA1ANDDES", PREFIX + "$PBEWithSHA1");
provider.addAlgorithm("Alg.Alias.Cipher", PKCSObjectIdentifiers.pbeWithMD2AndDES_CBC, "PBEWITHMD2ANDDES");
provider.addAlgorithm("Alg.Alias.Cipher", PKCSObjectIdentifiers.pbeWithMD5AndDES_CBC, "PBEWITHMD5ANDDES");
provider.addAlgorithm("Alg.Alias.Cipher", PKCSObjectIdentifiers.pbeWithSHA1AndDES_CBC, "PBEWITHSHA1ANDDES");
provider.addAlgorithm("Alg.Alias.Cipher.PBEWITHMD2ANDDES-CBC", "PBEWITHMD2ANDDES");
provider.addAlgorithm("Alg.Alias.Cipher.PBEWITHMD5ANDDES-CBC", "PBEWITHMD5ANDDES");
provider.addAlgorithm("Alg.Alias.Cipher.PBEWITHSHA1ANDDES-CBC", "PBEWITHSHA1ANDDES");
provider.addAlgorithm("SecretKeyFactory.PBEWITHMD2ANDDES", PREFIX + "$PBEWithMD2KeyFactory");
provider.addAlgorithm("SecretKeyFactory.PBEWITHMD5ANDDES", PREFIX + "$PBEWithMD5KeyFactory");
provider.addAlgorithm("SecretKeyFactory.PBEWITHSHA1ANDDES", PREFIX + "$PBEWithSHA1KeyFactory");
provider.addAlgorithm("Alg.Alias.SecretKeyFactory.PBEWITHMD2ANDDES-CBC", "PBEWITHMD2ANDDES");
provider.addAlgorithm("Alg.Alias.SecretKeyFactory.PBEWITHMD5ANDDES-CBC", "PBEWITHMD5ANDDES");
provider.addAlgorithm("Alg.Alias.SecretKeyFactory.PBEWITHSHA1ANDDES-CBC", "PBEWITHSHA1ANDDES");
provider.addAlgorithm("Alg.Alias.SecretKeyFactory." + PKCSObjectIdentifiers.pbeWithMD2AndDES_CBC, "PBEWITHMD2ANDDES");
provider.addAlgorithm("Alg.Alias.SecretKeyFactory." + PKCSObjectIdentifiers.pbeWithMD5AndDES_CBC, "PBEWITHMD5ANDDES");
provider.addAlgorithm("Alg.Alias.SecretKeyFactory." + PKCSObjectIdentifiers.pbeWithSHA1AndDES_CBC, "PBEWITHSHA1ANDDES");
}
private void addAlias(ConfigurableProvider provider, ASN1ObjectIdentifier oid, String name)
{
provider.addAlgorithm("Alg.Alias.KeyGenerator." + oid.getId(), name);
provider.addAlgorithm("Alg.Alias.KeyFactory." + oid.getId(), name);
}
}
}
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