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Open ID

People use Internet to do banking, shopping, emailing, downloading movies etc.  Most of these sites require a user account in order to serve more functionality and better to keep track of the customer.  OpenID is a protocol, which allow single sign-in for the Internet websites. OpenID works in a way where users authenticate them selves only once with a Identity Provider (also known as IR or OP – OpenID provider) and the IR will authenticate the users to different websites. But to what extent can Open ID provide safe and faster ways of logging into websites?


  • OpenID
  • OpenID 2.0
  • OpenID concept
  • How OpenID Works
  • Terminology OpenID Authentication
  • OpenID service providers
  • IDP (Identity Provider)