Add secure authentication for users

Do you have any plans regarding authentication? I plan to use the GPS feature of the app to keep track of my phone when it's outside my home. But for that I will have to expose the server to the internet and right now everybody could create new families etc.

I would like to have an account with user/password (maybe even certificate) required in order to connect to the server and would prefer not to use my proxy server for that. What are your thoughts on that?