Authentication Protocols

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Full Title or Meme

A collection of Authentication protocols are compared and contrasted.

Context

Since Kerberos was released at MIT in 1999 as a means to allow Single Sign On by students and staff to the variety of systems available at the university, the combination of one user sign on to a variety of different services has been promoted as necessary in the variety of network services now available to users. There are two distinct cases and a wide range of intermediate cases that are addressed by authentication protocols:

Captive users and services

At MIT and at most corporations there is a pre-existing legal agreement that is signed by all users that applies to all services.

In such a closed system in makes sense to allow Single Log Out so that a user can close their connection and go home for the day.

Federated or Open systems of users and services

Problems

Solutions

References