A Proposal for the Security of Peer-to-Peer (P2P) Networks: a pricing model inspired by the theory of complex networks

Abstract

This short research note proposes a peer-to-peer (P2P) network security pricing model that promotes the growth of P2P networks with an increased resistance to malicious code propagation. The security pricing model integrates findings from recent developments in complex network theory with incentive compatible pricing. The model links file download prices in P2P networks with a metric called the Pearson coefficient. The calculation of the Pearson coefficient indicates a structural dimension of networks called "preferential attachment". The security pricing model employs a mechanism that charges nodes (network users) higher prices for choosing "bad" links, that is links that decrease the Pearson coefficient, because these links inhibit preferential attachment in networks and ultimately degrade networks' resistance to malicious code propagation. The security pricing model provides incentives for nodes to choose the lower priced "good" links (that is, links that increase the Pearson coefficient). Continuing research will focus on formalizing and validating the P2P network security model. Simulation will be used to test the resistance of networks grown under this model to malicious code propagation. We demonstrate a different approach to P2P network security and hope that the final analysis will provide insights and provide a significant contribution to the future study of the security of distributed transient networks (DTN) including P2P, ad hoc, and other computer based networks.