Combating Index Poisoning in P2P File Sharing

Authors:
Lingli Deng;Yeping He;Ziyao Xu
Affiliations:
Institute of Software, Chinese Academy of Sciences, Beijing, P.R. China 100190 and Graduate University of Chinese Academy of Sciences, Beijing, P.R. China 100049;Institute of Software, Chinese Academy of Sciences, Beijing, P.R. China 100190;Institute of Software, Chinese Academy of Sciences, Beijing, P.R. China 100190 and Graduate University of Chinese Academy of Sciences, Beijing, P.R. China 100049
Venue:
ISA '09 Proceedings of the 3rd International Conference and Workshops on Advances in Information Security and Assurance
Year:
2009

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Abstract

In a peer-to-peer (P2P) file-sharing system, the faithful delivery of an authentic file depends on the authenticity of the file advertisement as well as the authenticity of the shared file advertised. We present the index authenticity problem in a distributed P2P indexing scheme, and propose to employ a secure index verification scheme , which allows a querying requestor to securely verify the authenticity of file advertisements in the query response from a distrusted index peer with unforgeable proofs of indexing correctness, in order to combat index poisoning attacks targeting index authenticity. A solution based on signature and bloom filter (BF) and its cost-efficiency analysis are given.