private SymmetricCrypto createCrypto(string arithmetic)
{
SymmetricAlgorithmType result;
if (string.IsNullOrWhiteSpace(arithmetic))
{
result = SymmetricAlgorithmType.TripleDES;
}
else if (!Enum.TryParse <SymmetricAlgorithmType>(arithmetic, out result))
{
throw new CryptographicException(string.Format("Invalid arithmetic:{0}", (object)arithmetic));
}
return(SymmetricCrypto.Create(this.getCryptoKey(), result));
}
