Implementing a Single Sign-On Solution on Rails

- Our customer has already an authentication process in place (using OmniAuth + Devise) which needs to be migrated to a new SSO solution. - User registration - User profile (basic info such as name, BOD, avatar) - Social network connection (Facebook -- think of it as a OmniAuth strategy) - SSO Engine (Using OpenID, CAS or custom built SSO with OmniAuth) - SSO Lib for client apps (a simple gem or sample that shows how to communicate with SSO engine) - Application registration - Custom sign in/sign up pages (Branded per app) Important: Graphic design is not part of project