I\'ve downloaded your DiffieHellman class to support the SharpSSH project in my application. The first thing it did was complaining about unsafe code in Mono\'s BigInteger class. I\'ve found that .NET 4 also has a BigInteger type in System.Numerics, but it seems incompatible with the one you\'re using. Do you think it could be made compatible in some way so that I don\'t need to allow unsafe code?