public override RSAParameters ExportParameters(bool includePrivateParameters)
{
if ((includePrivateParameters) && (!privateKeyExportable))
{
throw new CryptographicException("cannot export private key");
}
var rsaParams = rsa.ExportParameters(includePrivateParameters);
if (includePrivateParameters)
{
// we want an ArgumentNullException is only the D is missing, but a
// CryptographicException if other parameters (CRT) are missings
if (rsaParams.D == null)
{
throw new ArgumentNullException("Missing D parameter for the private key.");
}
else if ((rsaParams.P == null) || (rsaParams.Q == null) || (rsaParams.DP == null) ||
(rsaParams.DQ == null) || (rsaParams.InverseQ == null))
{
// note: we can import a private key, using FromXmlString,
// without the CRT parameters but we export it using ToXmlString!
throw new CryptographicException("Missing some CRT parameters for the private key.");
}
}
return(rsaParams);
}
public override RSAParameters ExportParameters(bool includePrivateParameters)
{
if ((includePrivateParameters) && (!privateKeyExportable))
{
throw new CryptographicException("cannot export private key");
}
return(rsa.ExportParameters(includePrivateParameters));
}
