Might be easier if you posted your code so we can see where you are going wrong. The Crypto library is limited by having to run under .NET 1.1/1.0. If you are running .NET 2.0 then my CryptoEx library is somewhat more comprehensive (actually that's a bit of an understatement
) and includes examples
CryptoEX library
@Erel - might be better shifting this thread to Questions ...