Trust in large-scale computational grids: an SPKI/SDSI extension for representing opinion

Authors:
José de R. P. Braga, Jr;Alexandre C. T. Vidal;Fabio Kon;Marcelo Finger
Affiliations:
University of São Paulo, Brazil;University of São Paulo, Brazil;University of São Paulo, Brazil;University of São Paulo, Brazil
Venue:
Proceedings of the 4th international workshop on Middleware for grid computing
Year:
2006

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Abstract

SPKI/SDSI is a flexible and extensible decentralized security model that provides authentication, confidentiality, and access control. However, SPKI/SDSI certification chains are not suitable for large scale, highly dynamic environments such as computational grids. This work extends the SPKI/SDSI model by including an opinion model based on subjective logic. A simulation is performed to evaluate the effectiveness of the proposal.