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Defending the Sybil Attack in P2P Networks: Taxonomy, Challenges and a Proposal for Self-Registration

Dinger, Jochen 1; Hartenstein, Hannes 1
1 Institut für Telematik (TM), Karlsruher Institut für Technologie (KIT)


The robustness of Peer-to-Peer (P2P) networks, in particularof DHT-based overlay networks, suffers significantly when a Sybil attack is performed. We tackle the issue of Sybil attacks from two sides. First, we clarify, analyze, and classify the P2P identifier assignment process. By clearly separating network participants from network nodes, two challenges of P2P networks under a Sybil attack become obvious: i) stability over time, and ii) identity differentiation. Second, as a starting point for a quantitative analysis of time-stability of P2P networks under Sybil attacks and under some assumptions with respect to identity differentiation, we propose an identity registration procedure called self-registration that makes use of the inherent distribution mechanisms of a P2P network.

DOI: 10.1109/ARES.2006.45
Zitationen: 94
Zitationen: 79
Zugehörige Institution(en) am KIT Institut für Telematik (TM)
Publikationstyp Proceedingsbeitrag
Publikationsjahr 2006
Sprache Englisch
Identifikator ISBN: 0-7695-2567-9
KITopen-ID: 1000004170
Erschienen in 1st International Conference on Availability, Reliability and Security, ARES 2006; Vienna; Austria; 20 April 2006 through 22 April 2006
Verlag IEEE Computer Society
Seiten 756-763
Nachgewiesen in Dimensions
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