Native app (ios/android) autentication using ADFS

Question

I basically want to want to authenticate with ADFS as an external identity provider in a native ios/android app. Preferably with a seamless login experience, but that may be asking to much. The setup that I want is pretty much the one described here except that I moved the identity stuff to an STS project. The ios and android apps are accessing the web api.

I also used this pluralsight course.

Now I "just" need a way to use the credentials received from the mobile app to issue an access token. I need to know if I am on the right path. I am using:

• IdentityServer3.
• Oauth2 and OpenID Connect. (using password grant)
• The solution has to work on adfs 3.0.
• NET 4.6 web api and mvc solutions running in azure.

I have been looking at the ADAL.NET project, but that seems to be primarily for Xamarin and I already have the ios and android developed natively.

Questions:

1. What is the best approach going forward?
2. Are there any (perhaps new) technologies that i am completely missing?

Answer 1

Your basic problem is that with ADFS 3.0, there is no OpenID Connect support and very limited OAuth support - basically just auth. code grant for web API.

Much along these lines .

If you want the full stack (ala what you have with idsrv3), you need ADFS 4.0.

You could federate idsrv3 with ADFS using WS-Fed for the final hop.