Interoperability between Heterogeneous Federation Architectures: Illustration with SAML and WS-Federation

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Ates, Mikaël
Gravier, Christophe
Lardon, Jérémy
Fayolle, Jacques
Sauviac, B.
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Abstract
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Digital identity management intra and inter information systems, and, service oriented architectures, are the roots of identity federation. This kind of security architectures aims at enabling information system interoperability. Existing architectures, however, do not consider interoperability of heterogeneous federation architectures, which rely on different federation protocols.In this paper, we try to initiate an in-depth reflection on this issue, through the comparison of two main federation architecture specifications: SAML and WS-Federation. We firstly propose an overall outline of identity federation. We furthermore address the issue of interoperability for federation architectures using a different federation protocol. Afterwards, we compare SAML and WS-Federation. Eventually, we define the ways of convergence, and therefore, of interoperability.
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Computer Science - Cryptography and Security
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