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package org.bouncycastle.crypto.tls;
import java.io.IOException;
import org.bouncycastle.crypto.CryptoException;
import org.bouncycastle.crypto.params.AsymmetricKeyParameter;
import org.bouncycastle.crypto.params.DSAPrivateKeyParameters;
import org.bouncycastle.crypto.params.ECPrivateKeyParameters;
import org.bouncycastle.crypto.params.RSAKeyParameters;
public class DefaultTlsSignerCredentials
implements TlsSignerCredentials
{
protected TlsContext context;
protected Certificate certificate;
protected AsymmetricKeyParameter privateKey;
protected TlsSigner signer;
public DefaultTlsSignerCredentials(TlsContext context, Certificate certificate, AsymmetricKeyParameter privateKey)
{
if (certificate == null)
{
throw new IllegalArgumentException("'certificate' cannot be null");
}
if (certificate.isEmpty())
{
throw new IllegalArgumentException("'certificate' cannot be empty");
}
if (privateKey == null)
{
throw new IllegalArgumentException("'privateKey' cannot be null");
}
if (!privateKey.isPrivate())
{
throw new IllegalArgumentException("'privateKey' must be private");
}
if (privateKey instanceof RSAKeyParameters)
{
this.signer = new TlsRSASigner();
}
else if (privateKey instanceof DSAPrivateKeyParameters)
{
this.signer = new TlsDSSSigner();
}
else if (privateKey instanceof ECPrivateKeyParameters)
{
this.signer = new TlsECDSASigner();
}
else
{
throw new IllegalArgumentException("'privateKey' type not supported: " + privateKey.getClass().getName());
}
this.signer.init(context);
this.context = context;
this.certificate = certificate;
this.privateKey = privateKey;
}
public Certificate getCertificate()
{
return certificate;
}
public byte[] generateCertificateSignature(byte[] md5andsha1)
throws IOException
{
try
{
return signer.generateRawSignature(privateKey, md5andsha1);
}
catch (CryptoException e)
{
throw new TlsFatalAlert(AlertDescription.internal_error);
}
}
}
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