An Identity Provider is a special service provider. The specific service that it provides is to authenticate Principals and allow identity federation. An identity provider belongs to a Circle of Trust, in which it is trusted by the Service Providers so that they delegate to it the process of authenticating their users.

The Identity Provider may act as an authentication service in the sense of a Single Sign-On scheme. In this case, a person that is logged-in with the Identity Provider is enabled to use services of affiliated Service Providers as well due to Identity Federation.

Identity Providers provide a way for a person to use his/her electronic identity provided by a certain Service Provider to access services provided by a different Service Provider. The bridge between these normally independent electronic identities is built by the Identity Provider, although each of the service provider remains using its own electronic identity.

Category Identity And Authorization Management
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This page (revision-1) last changed on 18:24 25-Mar-2017 by Alexandre Nouvel.
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