I have to develop a web site that implements a custom authentication. No problem so far, I should use the Membership provider and so on. Now comes the problems.... I have to create other web site, accessible from the main one without asking for user credential. This site has to do the login silently or show again the login form if the user is not authenticated.
I think I have to use DotNetOpenAuth and OpenId authentication in some way, but I've spent some days searching the internet without find any starting point. All sample uses Google or Facebook but is not my case....
Basically....
- User log in in to main web site.
- click a link to an external web site
- the external web site "recognize" that the user is already logged and give access
I'm really confused about OpenId and hope that someone can give me some hints.
Any help will be really appreciated
Thanks!