Distributed Hash Table-based overlays are widely used to support ecient information routing and storage in structured peerto- peer networks, but they are also subject to numerous attacks aimed at disrupting their correct functioning. In this paper we analyze the impact of the Eclipse attack on a Chord-based overlay in terms of number of key lookups intercepted by a collusion of malicious nodes. Moreover, we propose some modifications to the Chord routing protocol in order to mitigate its eects. Such countermeasures can operate in a distributed fashion or assume the presence of a centralized trusted entity and introduce a limited trac overhead. The eectiveness of the proposed mitigation techniques has been shown through numerical results.

Mitigation of the Eclipse Attack in Chord Overlays

ROTTONDI, CRISTINA EMMA MARGHERITA;VERTICALE, GIACOMO
2014

Abstract

Distributed Hash Table-based overlays are widely used to support ecient information routing and storage in structured peerto- peer networks, but they are also subject to numerous attacks aimed at disrupting their correct functioning. In this paper we analyze the impact of the Eclipse attack on a Chord-based overlay in terms of number of key lookups intercepted by a collusion of malicious nodes. Moreover, we propose some modifications to the Chord routing protocol in order to mitigate its eects. Such countermeasures can operate in a distributed fashion or assume the presence of a centralized trusted entity and introduce a limited trac overhead. The eectiveness of the proposed mitigation techniques has been shown through numerical results.
Procedia Computer Science
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11311/847342
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