ASP.NET Security Interface - Must Implement

Whenever ASP.NET version will be developed, please consider implementing Authentication Interface with Module that could be replaced. In my specific case I have a kick arse authetnication module working in HTTP pipeline supporting cross site authentication, ticketing etc... It would be a shame if I could not integrate that module with the board.

For as long as a board impments something like

IAuthenticationAuthority
{
IsValidUser()
GetUserGroups()
etc....
}

It would be a breeze for me (and countless others) to extend our classes to include that interface.

- Arthur