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package org.bouncycastle.jcajce.provider.asymmetric.rsa;
import java.security.InvalidKeyException;
import java.security.PrivateKey;
import java.security.PublicKey;
import java.security.SignatureException;
import java.security.SignatureSpi;
import java.security.interfaces.RSAPrivateKey;
import java.security.interfaces.RSAPublicKey;
import java.security.spec.AlgorithmParameterSpec;
import org.bouncycastle.crypto.AsymmetricBlockCipher;
import org.bouncycastle.crypto.CipherParameters;
import org.bouncycastle.crypto.Digest;
import org.bouncycastle.crypto.digests.MD5Digest;
import org.bouncycastle.crypto.digests.RIPEMD160Digest;
import org.bouncycastle.crypto.digests.SHA1Digest;
import org.bouncycastle.crypto.engines.RSABlindedEngine;
import org.bouncycastle.crypto.signers.ISO9796d2Signer;
public class ISOSignatureSpi
extends SignatureSpi
{
private ISO9796d2Signer signer;
protected ISOSignatureSpi(
Digest digest,
AsymmetricBlockCipher cipher)
{
signer = new ISO9796d2Signer(cipher, digest, true);
}
protected void engineInitVerify(
PublicKey publicKey)
throws InvalidKeyException
{
CipherParameters param = RSAUtil.generatePublicKeyParameter((RSAPublicKey)publicKey);
signer.init(false, param);
}
protected void engineInitSign(
PrivateKey privateKey)
throws InvalidKeyException
{
CipherParameters param = RSAUtil.generatePrivateKeyParameter((RSAPrivateKey)privateKey);
signer.init(true, param);
}
protected void engineUpdate(
byte b)
throws SignatureException
{
signer.update(b);
}
protected void engineUpdate(
byte[] b,
int off,
int len)
throws SignatureException
{
signer.update(b, off, len);
}
protected byte[] engineSign()
throws SignatureException
{
try
{
byte[] sig = signer.generateSignature();
return sig;
}
catch (Exception e)
{
throw new SignatureException(e.toString());
}
}
protected boolean engineVerify(
byte[] sigBytes)
throws SignatureException
{
boolean yes = signer.verifySignature(sigBytes);
return yes;
}
protected void engineSetParameter(
AlgorithmParameterSpec params)
{
throw new UnsupportedOperationException("engineSetParameter unsupported");
}
/**
* @deprecated replaced with <a href = "#engineSetParameter(java.security.spec.AlgorithmParameterSpec)">
*/
protected void engineSetParameter(
String param,
Object value)
{
throw new UnsupportedOperationException("engineSetParameter unsupported");
}
/**
* @deprecated
*/
protected Object engineGetParameter(
String param)
{
throw new UnsupportedOperationException("engineSetParameter unsupported");
}
static public class SHA1WithRSAEncryption
extends ISOSignatureSpi
{
public SHA1WithRSAEncryption()
{
super(new SHA1Digest(), new RSABlindedEngine());
}
}
static public class MD5WithRSAEncryption
extends ISOSignatureSpi
{
public MD5WithRSAEncryption()
{
super(new MD5Digest(), new RSABlindedEngine());
}
}
static public class RIPEMD160WithRSAEncryption
extends ISOSignatureSpi
{
public RIPEMD160WithRSAEncryption()
{
super(new RIPEMD160Digest(), new RSABlindedEngine());
}
}
}
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