The Peer Sampling Service (PSS) has been proposed as a method to initiate and maintain the set of connections between nodes in unstructured peer to peer (P2P) networks. The PSS usually relies on gossip-style communication where participants exchange their links in a randomized way. However, the PSS network organization can be easily modified by malicious nodes running a “hub attack", in which they achieve a leading structural position. From this pres- tigious status, the malicious nodes can severely affect the overlay and achieve several application dependent advantages. We present a novel method to overcome this attack and provide results from simulation experiments that validate our claim. This method is in- spired by a simple technique used to detect social leaders in firm’s organizations that is based on the social (structural) “prestige" of actors.

Prestige-based peer sampling service: Interdisciplinary approach to secure gossip

JESI, GIAN PAOLO;MOLLONA, EDOARDO VINCENZO EUGENIO
2009

Abstract

The Peer Sampling Service (PSS) has been proposed as a method to initiate and maintain the set of connections between nodes in unstructured peer to peer (P2P) networks. The PSS usually relies on gossip-style communication where participants exchange their links in a randomized way. However, the PSS network organization can be easily modified by malicious nodes running a “hub attack", in which they achieve a leading structural position. From this pres- tigious status, the malicious nodes can severely affect the overlay and achieve several application dependent advantages. We present a novel method to overcome this attack and provide results from simulation experiments that validate our claim. This method is in- spired by a simple technique used to detect social leaders in firm’s organizations that is based on the social (structural) “prestige" of actors.
Proceedings of the 24th ACM SAC Workshop: Self- Organization in Pervasive Distributed Systems (SOPDS)
1927
1931
G. P. Jesi; S. K. Nair; M. van Steen; E. Mollona
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11585/115515
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