: The decentralised, cooperative and self-organising nature of Peer-to-Peer (P2P) systems help to mitigate and even overcome many challenges which overwhelm the traditional client-server approaches. On the other hand, these very characteristics also introduce some novel issues in P2P environments. One of the critical issues is how to build the trust relationship within P2P systems. In this paper, we first discuss the desired properties that need to be considered while building trust in P2P systems. Then, we analyse two types of attacks
Bo Zhu, Sushil Jajodia, Mohan S. Kankanhalli