Hi
I have a factory pattern that gives me an instance of an implementation that
is not a well known. All I know is the interface, and I read the final
implementation somewhere from my configuration. This is great for plug-ins,
where you can have your code completely independent of the final
implementation.

But now. I don't want so much flexibility. I want to call the
implementation, IF it respects some security concerns, like, for example, if
it is signed for some publisher, or having some public key. How to do this ?
I want something near the linkdemand but at the reverse side. It's not the
called object certifying the caller, but the caller certifying the called
object.

To get things worst, I need this to work with remote server activated
objects, using, for example, a
RemotingServices.Connect(Type.GetType(mytypefullname),myobjectUri)
statement.

No clue. I'm lost. Does someone knows how to do this at .NET Framework 1.1 ?

The ideal situation would be to start something like a Security Context
object, where I define that during some stack calls, I want that all my
instantiated objects respect some evidence rules.

Any help ?