2nd International ICST Workshop on the Value of Security through Collaboration

Research Article

Reputation-Based Algorithm for Managing Trust in File Sharing Networks

  • @INPROCEEDINGS{10.1109/SECCOMW.2006.359538,
        author={Lara  Srour and  Ayman  Kayssi  and Ali  Chehab},
        title={Reputation-Based Algorithm for Managing Trust in File Sharing Networks},
        proceedings={2nd International ICST Workshop on the Value of Security through Collaboration},
        publisher={IEEE},
        proceedings_a={SECOVAL},
        year={2007},
        month={5},
        keywords={},
        doi={10.1109/SECCOMW.2006.359538}
    }
    
  • Lara Srour
    Ayman Kayssi
    Ali Chehab
    Year: 2007
    Reputation-Based Algorithm for Managing Trust in File Sharing Networks
    SECOVAL
    IEEE
    DOI: 10.1109/SECCOMW.2006.359538
Lara Srour1,2,*, Ayman Kayssi 1,2,*, Ali Chehab1,2,*
  • 1: Department of Electrical and Computer Engineering, American University of Beirut
  • 2: Beirut, Lebanon
*Contact email: les03@aub.edu.lb, ayman@aub.edu.lb, chehab@aub.edu.lb

Abstract

Peer-to-peer file sharing networks, such as Gnutella, have gained large success and reached millions of users. However, the decentralized and anonymous characteristics of these networks open the door to abuses by malicious peers spreading tampered resources such as viruses and worms. Moreover, file sharing networks are vulnerable to problems and security concerns such as the selfishness of users which brings on the free-riding problem, the zero-cost identity problem, and the collusion among nodes to incorrectly promote or malign other nodes. To address these problems, we propose a robust reputation framework that integrates aspects of multiple trust domains and trust dimensions, a fairness participation scheme and an access control mechanism. We show that our system is highly effective in preventing the spread of malicious content and in promoting fairness under various threat models