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ARA: a robust audit to prevent free-riding in P2P networks

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2 Author(s)
MyungJoo Ham ; Dept. of Comput. Sci., Illinois Univ., Urbana, IL, USA ; Agha, Gul

A number of solutions have been proposed to address the free-riding problem in peer-to-peer file sharing systems. The solutions are either imperfect-they allow some users to cheat the system with malicious behavior, or expensive-they require human intervention, require servers, or incur high mental transaction costs. The authors proposed a method to address these weaknesses. Specifically, a utility function was introduced to capture contributions made by a user and an auditing scheme to ensure the integrity of a utility function's values. The method enabled to reduce cheating by a malicious peer: it is shown that this approach can efficiently detect malicious peers with a probability over 98%.

Published in:

Peer-to-Peer Computing, 2005. P2P 2005. Fifth IEEE International Conference on

Date of Conference:

31 Aug.-2 Sept. 2005