| Recently, the idea of reputation systems has been widely accepted among users who require assistance in measuring the trustworthiness of information providers across the peer-to-peer networks. In this thesis, we present a state-of-the-art taxonomy of reputation systems on the decentralized peer-to-peer networks. We have analyzed 15 different systems and have sorted them into a list of seven basic dimensions. These dimensions are then used to establish a taxonomy under which the systems analyzed are classified.; We develop a reputation system, Reptella, which expands an existing Gnutella peer implementation to demonstrate the advantage of our taxonomy. Moreover, based on the development of Reptella system, an analysis on how to incorporate reputation systems into existing peer-to-peer networks is carried out in terms of system design and system implementation. Such an analysis has important significance in that it relieves developers from the laborious job involved in developing a peer-to-peer reputation system from scratch. |
