[OpenID] One-Click OpenID: A Solution to the NASCAR Problem

[Allen Tom]

Hi Francisco,

Thanks for sharing!

One of the appealing aspects of your proposal is that it enables users to
login with an account from any OpenID Provider, as opposed to being limited
to a small set of NASCAR buttons. However, websites generally limit the
choices available to users in order to persuade the user to login using a
high value account with data and services (name, verified email address,
social sharing, profile, Likes, etc).

In practice, not many websites want to users to login with 3rd party
accounts unless they're guaranteed to get some data/services - it seems
that most sites would rather have the user register a new local account
with a password if the user doesn't want to use one of the NASCAR buttons.
  Account Chooser and Mozilla's BrowserID are both relatively email-address
centric because verified email address seems to be the bare minimum that
sites need to to get in order to justify accepting a 3rd party login
relative to just registering a local account.

Does your proposal have a way for an RP to specify the requirements for
accounts that are acceptable for users to login with? For instance, an RP
may only accept OpenIDs from OPs that share the user's verified email
address.

Thanks
Allen
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