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Federation Web: A Scheme to Compound Authorization Chains on Large-Scale Distributed Systems

9 years 9 months ago
Federation Web: A Scheme to Compound Authorization Chains on Large-Scale Distributed Systems
Traditional security systems are not easily scalable and can become single points of failure or performance bottlenecks when used on a large-scale distributed system such as the Internet. This problem occurs also when using a Public Key Infrastructure (PKI) with a hierarchical trust model. SDSI/SPKI is a PKI that adopts a more scalable trust paradigm, which is focused on the client and based on authorization chains. However, the task of locating the chain that links a client to a server is not completely addressed by SDSI/SPKI. Aiming to overcome this limitation, this paper proposes extensions to the SDSI/SPKI authorization and authentication model. The proposed approach introduces the concept of Federation Webs, which allow the client to build new authorization chains linking it to a server when a direct path does not exist. A prototype implementation of this proposal has shown promising results.
Altair Olivo Santin, Joni da Silva Fraga, Frank Si
Added 05 Jul 2010
Updated 05 Jul 2010
Type Conference
Year 2003
Where SRDS
Authors Altair Olivo Santin, Joni da Silva Fraga, Frank Siqueira, Emerson Ribeiro de Mello
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