Single Sign On
As users access more and more network services on more and more systems, thought has been given to the idea of centralizing the user authentication process with a goal of simplifying it and making it more secure. The idea of a single sign on (SSO), now also referred to as federated identity, is to increase security while at the same time reducing the inconvenience to users of having to remember a different password for each service. Single sign on separates the process of authenticating a user, or letting the user prove that he/she is who she claims to be, from the process of authorizing a user to perform individual functions on the network. The single sign-on process authenticates the user and provides them with a security token indicating their identity. Network services can then examine this token to determine whether or not that particular user is permitted access to that service.
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Version 1.0 - Version Date: November 7, 2004
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