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The Bouncy Castle Crypto package is a Java implementation of cryptographic algorithms.
This jar contains JCE provider for the Bouncy Castle Cryptography APIs for JDK 1.5 to JDK 1.7.
package org.spongycastle.jcajce.provider.symmetric.util;
import java.security.InvalidAlgorithmParameterException;
import java.security.InvalidKeyException;
import java.security.Key;
import java.security.spec.AlgorithmParameterSpec;
import javax.crypto.MacSpi;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.PBEParameterSpec;
import org.spongycastle.crypto.CipherParameters;
import org.spongycastle.crypto.Mac;
import org.spongycastle.crypto.digests.MD2Digest;
import org.spongycastle.crypto.digests.MD4Digest;
import org.spongycastle.crypto.digests.MD5Digest;
import org.spongycastle.crypto.digests.RIPEMD128Digest;
import org.spongycastle.crypto.digests.RIPEMD160Digest;
import org.spongycastle.crypto.digests.SHA1Digest;
import org.spongycastle.crypto.digests.SHA224Digest;
import org.spongycastle.crypto.digests.SHA256Digest;
import org.spongycastle.crypto.digests.SHA384Digest;
import org.spongycastle.crypto.digests.SHA512Digest;
import org.spongycastle.crypto.digests.TigerDigest;
import org.spongycastle.crypto.engines.DESEngine;
import org.spongycastle.crypto.engines.RC2Engine;
import org.spongycastle.crypto.macs.CBCBlockCipherMac;
import org.spongycastle.crypto.macs.CFBBlockCipherMac;
import org.spongycastle.crypto.macs.GOST28147Mac;
import org.spongycastle.crypto.macs.HMac;
import org.spongycastle.crypto.macs.ISO9797Alg3Mac;
import org.spongycastle.crypto.macs.OldHMac;
import org.spongycastle.crypto.paddings.ISO7816d4Padding;
import org.spongycastle.crypto.params.KeyParameter;
import org.spongycastle.crypto.params.ParametersWithIV;
public class BaseMac
extends MacSpi implements PBE
{
private Mac macEngine;
private int pbeType = PKCS12;
private int pbeHash = SHA1;
private int keySize = 160;
protected BaseMac(
Mac macEngine)
{
this.macEngine = macEngine;
}
protected BaseMac(
Mac macEngine,
int pbeType,
int pbeHash,
int keySize)
{
this.macEngine = macEngine;
this.pbeType = pbeType;
this.pbeHash = pbeHash;
this.keySize = keySize;
}
protected void engineInit(
Key key,
AlgorithmParameterSpec params)
throws InvalidKeyException, InvalidAlgorithmParameterException
{
CipherParameters param;
if (key == null)
{
throw new InvalidKeyException("key is null");
}
if (key instanceof BCPBEKey)
{
BCPBEKey k = (BCPBEKey)key;
if (k.getParam() != null)
{
param = k.getParam();
}
else if (params instanceof PBEParameterSpec)
{
param = PBE.Util.makePBEMacParameters(k, params);
}
else
{
throw new InvalidAlgorithmParameterException("PBE requires PBE parameters to be set.");
}
}
else if (params instanceof IvParameterSpec)
{
param = new ParametersWithIV(new KeyParameter(key.getEncoded()), ((IvParameterSpec)params).getIV());
}
else if (params == null)
{
param = new KeyParameter(key.getEncoded());
}
else
{
throw new InvalidAlgorithmParameterException("unknown parameter type.");
}
macEngine.init(param);
}
protected int engineGetMacLength()
{
return macEngine.getMacSize();
}
protected void engineReset()
{
macEngine.reset();
}
protected void engineUpdate(
byte input)
{
macEngine.update(input);
}
protected void engineUpdate(
byte[] input,
int offset,
int len)
{
macEngine.update(input, offset, len);
}
protected byte[] engineDoFinal()
{
byte[] out = new byte[engineGetMacLength()];
macEngine.doFinal(out, 0);
return out;
}
/**
* the classes that extend directly off us.
*/
/**
* DES
*/
public static class DES
extends BaseMac
{
public DES()
{
super(new CBCBlockCipherMac(new DESEngine()));
}
}
/**
* DES 64 bit MAC
*/
public static class DES64
extends BaseMac
{
public DES64()
{
super(new CBCBlockCipherMac(new DESEngine(), 64));
}
}
/**
* RC2
*/
public static class RC2
extends BaseMac
{
public RC2()
{
super(new CBCBlockCipherMac(new RC2Engine()));
}
}
/**
* GOST28147
*/
public static class GOST28147
extends BaseMac
{
public GOST28147()
{
super(new GOST28147Mac());
}
}
/**
* DES
*/
public static class DESCFB8
extends BaseMac
{
public DESCFB8()
{
super(new CFBBlockCipherMac(new DESEngine()));
}
}
/**
* RC2CFB8
*/
public static class RC2CFB8
extends BaseMac
{
public RC2CFB8()
{
super(new CFBBlockCipherMac(new RC2Engine()));
}
}
/**
* 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()));
}
}
/**
* MD2 HMac
*/
public static class MD2
extends BaseMac
{
public MD2()
{
super(new HMac(new MD2Digest()));
}
}
/**
* MD4 HMac
*/
public static class MD4
extends BaseMac
{
public MD4()
{
super(new HMac(new MD4Digest()));
}
}
/**
* MD5 HMac
*/
public static class MD5
extends BaseMac
{
public MD5()
{
super(new HMac(new MD5Digest()));
}
}
/**
* SHA1 HMac
*/
public static class SHA1
extends BaseMac
{
public SHA1()
{
super(new HMac(new SHA1Digest()));
}
}
/**
* SHA-224 HMac
*/
public static class SHA224
extends BaseMac
{
public SHA224()
{
super(new HMac(new SHA224Digest()));
}
}
/**
* SHA-256 HMac
*/
public static class SHA256
extends BaseMac
{
public SHA256()
{
super(new HMac(new SHA256Digest()));
}
}
/**
* SHA-384 HMac
*/
public static class SHA384
extends BaseMac
{
public SHA384()
{
super(new HMac(new SHA384Digest()));
}
}
public static class OldSHA384
extends BaseMac
{
public OldSHA384()
{
super(new OldHMac(new SHA384Digest()));
}
}
/**
* SHA-512 HMac
*/
public static class SHA512
extends BaseMac
{
public SHA512()
{
super(new HMac(new SHA512Digest()));
}
}
/**
* SHA-512 HMac
*/
public static class OldSHA512
extends BaseMac
{
public OldSHA512()
{
super(new OldHMac(new SHA512Digest()));
}
}
/**
* RIPEMD128 HMac
*/
public static class RIPEMD128
extends BaseMac
{
public RIPEMD128()
{
super(new HMac(new RIPEMD128Digest()));
}
}
/**
* RIPEMD160 HMac
*/
public static class RIPEMD160
extends BaseMac
{
public RIPEMD160()
{
super(new HMac(new RIPEMD160Digest()));
}
}
/**
* Tiger HMac
*/
public static class Tiger
extends BaseMac
{
public Tiger()
{
super(new HMac(new TigerDigest()));
}
}
//
// PKCS12 states that the same algorithm should be used
// for the key generation as is used in the HMAC, so that
// is what we do here.
//
/**
* PBEWithHmacRIPEMD160
*/
public static class PBEWithRIPEMD160
extends BaseMac
{
public PBEWithRIPEMD160()
{
super(new HMac(new RIPEMD160Digest()), PKCS12, RIPEMD160, 160);
}
}
/**
* PBEWithHmacSHA
*/
public static class PBEWithSHA
extends BaseMac
{
public PBEWithSHA()
{
super(new HMac(new SHA1Digest()), PKCS12, SHA1, 160);
}
}
/**
* PBEWithHmacTiger
*/
public static class PBEWithTiger
extends BaseMac
{
public PBEWithTiger()
{
super(new HMac(new TigerDigest()), PKCS12, TIGER, 192);
}
}
}