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This paper introduces a small world overlay Peer- to-peer (P2P) transfer system with role based and reputation based access control policies, through which we are able to solve several serious problems existed in traditional P2P systems, like resource piracy, user privacy and network jam. The role based access control policy is implemented by the certificate based cryptography, e.g. X509. The reputation based access control policy consists of artificial scoring and automatic scoring components, corresponding to the quality and quantity evaluation of the transfer resources respectively. This system, upon the two policies and the adaptive small world overlay P2P topology, can restrict the peer's role and select a more credible peer to upload and download without any loss of performance, for the reason of the dramatic topology. Indeed it provides a secure, controllable and efficient resource transfer community.
Date of Conference: 28-29 Jan. 2008