A coordination-based access control model for space-based computing

Authors:
Stefan Craß;Eva Kühn
Affiliations:
Vienna University of Technology, Argentinierstraße, Wien, Austria;Vienna University of Technology, Argentinierstraße, Wien, Austria
Venue:
Proceedings of the 27th Annual ACM Symposium on Applied Computing
Year:
2012

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Abstract

Shared tuple spaces serve as coordination medium for independent processes to exchange data and messages in a flexible way. If communication takes place over the Internet, security becomes an important issue. It must be forbidden that unauthorized processes get access to protected data. In this paper, we present an authorization model for a space-based middleware that uses its own coordination mechanisms for defining fine-grained access control policies. By integrating coordination and security mechanisms into one single concept, the model allows for flexible and secure distributed collaboration.