Home // AP2PS 2010, The Second International Conference on Advances in P2P Systems // View article

SPP: A Secure Protocol for Peer-to-Peer Systems

Authors:
Quang Hieu Vu

Keywords: Trust management; Security; Protocol; P2P.

Abstract:
The main challenge of reputation-based methods that are used to evaluate trust of peers in Peer-to-Peer (P2P) systems is how to collect and distribute reputation scores of peers efficiently. While several protocols have been proposed to address this challenge, most of them rely on a gossiping algorithm, which is expensive and communication-intensive. In this paper, we propose SPP, a Secure Protocol for P2P trust management using trees in which we present a trust model between nodes in a tree, and explain how trust is established and maintained between pairs of nodes. We show that, compared to existing methods, our design allows for scalability and efficient algorithms with low overhead. We present a possible implementation of our basic tree design, and explain how it could be made stable and robust to network dynamism, thus addressing the greatest weakness of a tree structure. We also analyze the implementation for its security against various adversarial scenarios, and suggest further improvements that are possible for general tree-based systems.

Pages: 1 to 6

Copyright: Copyright (c) IARIA, 2010

Publication date: October 25, 2010

Published in: conference

ISBN: 978-1-61208-102-1

Location: Florence, Italy

Dates: from October 25, 2010 to October 30, 2010