August 2011
Intermediate to advanced
546 pages
20h 53m
English
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The OpenID Authentication Flow
Much like OAuth (which we explored in Chapter 9), OpenID maintains a standardized flow by which a user can authenticate on a third-party relaying site to an OpenID provider such as Yahoo! or Google.
There are three participants in the OpenID authentication flow that we will be working with and describing in this chapter:
- The user
This is the end user who is attempting to sign in to a site or service using one of the OpenID providers.
- The relaying party
This is the OpenID consumer site that is implementing an OpenID provider login in order to allow users to authenticate their accounts.
- The OpenID provider
This is the site or service that has the membership database that the relaying party will authenticate against and through which the user will log in.
With that said, the OpenID authentication process will take us through four different steps, starting from when the user chooses which provider to use to sign in and ending with the authentication pass/fail returned by the provider when the user attempts to authenticate. These steps are:
Request user login by passing an OpenID identifier URI.
Perform discovery on the OpenID endpoint.
Require the user to authenticate his account.
Provide a pass/fail state based on the authentication.
Let’s break these down to see what happens between the user, relaying party, and OpenID provider at each stage.
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.