Towards a trust model in P2P system based on trusted computing

Security is a crucial issue when it comes to design and implement Peer-to-Peer (P2P) system. The constant running theme in the security of P2P is that of trust. In this paper, we propose a trust model named F-PKI (Freely organized one level Public Key Infrastructure) in P2P system based on Trusted Computing (TC) technology which is used to enhance PC security by incorporating hardware platform. In this model, peers are organized freely by group, each of which is a one level PKI. Preliminary evaluation results show that the proposed model is realistic and argue that not only the security of the trust model proposed is enhanced, but also facilitates authentication and trust establishment between peers in P2P systems.