Abstract In cooperative Peer-to-Peer (P2P) networks, a number of users, called Free-riders,
try to receive service from others without cooperating with them. Some others, called Sybil …

Many reputation systems have been proposed to distinguish malicious peers and to ensure
the quality of the service in P2P file sharing systems. Most of those reputation systems …

In this paper we use game theory to study nodes' behavior in peer-to-peer networks when
nodes receive service based on their reputation. Reputation is used as a mechanism to …

In unstructured peer-to-peer networks, as in real life, a good neighbourhood is not only
crucial for a peaceful sleep, but also for an exchange of important gossips and for finding …

The existence of a high degree of free riding is a serious threat to Peer-to-Peer (P2P)
networks. In this paper, we propose a distributed framework to reduce the adverse effects of …

Sybil attack is one of the most challenging problems that plague current decentralized Peer-
to-Peer (P2P) systems. In Sybil attack, a single malicious user creates multiple peer …

Recently, Peer-to-Peer (P2P) networks have widely been used to file-sharing applications
due to their decentralized architecture and reliability. The popularization of P2P networks …

P2P networks can be thought as common goods in that they rely on voluntary provision of
resources from individual peers (storage space or bandwidth, etc.) to support the creation …

Trust research has become a key issue in the last few years as a novel and valid solution to
ensure the security and application in peer-to-peer (P2P) file-sharing networks. The …

As more and more P2P applications being popular in Internet, one of important problem to
be solved is inspiring users to cooperate each other actively and honestly, the reputation …