Towards threat-adaptive dynamic fragment replication in large scale distributed systems
Di Pietro, R.; Mancini, L.V.; Mei, A.
Parallel and Distributed Processing Symposium, 2007. IPDPS 2007. IEEE International
Volume , Issue , 26-30 March 2007 Page(s):1 - 1
Digital Object Identifier   10.1109/IPDPS.2007.370649
Summary:In this paper, we consider new issues in building secure p2p file sharing systems. In particular, we define a powerful adversary model and consequently present the requirements to address when implementing a threat-adaptive secure file sharing system. We describe the main components of such a system: an early warning mechanism to perform pre-emptive actions against new vulnerabilities; a mechanism to sanitize corrupted nodes; a protocol to securely "migrate" data from non-safe nodes; and an efficient dynamic secret sharing mechanism.

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