The Diameter 'Application Bridging for Federated Access Beyond Web (ABFAB)' Application

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Last updated 2012-09-13 (latest revision 2012-03-12)
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The Application Bridging for Federated Access Beyond Web (ABFAB) architecture provides cross-domain authentication, authorization and accounting functionality by utilizing well-established technologies, such as Diameter, the Extensible Authentication Protocol (EAP), and the Generic Security Services API (GSS-API). This document defines a Diameter application for usage with the ABFAB architecture to convey authentication information, and authorization decisions from the Diameter server (acting as the identity provider) to the Diameter client (acting as a relying party) encoded in a Security Assertion Markup Language (SAML) encoding.


Mark Jones (
Hannes Tschofenig (

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