I have an asp.net application which signs users in manually. The custom authentication procedure checks several data sources (DB, AD, MF, etc.) and finally sets a forms authentication ticket for the user, if she is successfully authenticated.
I want to share this ticket with sharepoint 2010. I will not be signing in through sharepoint, so there is no need for authentication procedure to caried out on the sharepoint side. (and thus no need, as far as I can see, to define a provider, etc.)
I have tried using claims-based authentication on the sharepoint side, but don't really know how to set it up, since I do the authentication manually on the asp.net application.