Reputation Systems for Anonymous Networks

  • Elli Androulaki
  • Seung Geol Choi
  • Steven M. Bellovin
  • Tal Malkin
Conference paper

DOI: 10.1007/978-3-540-70630-4_13

Part of the Lecture Notes in Computer Science book series (LNCS, volume 5134)
Cite this paper as:
Androulaki E., Choi S.G., Bellovin S.M., Malkin T. (2008) Reputation Systems for Anonymous Networks. In: Borisov N., Goldberg I. (eds) Privacy Enhancing Technologies. PETS 2008. Lecture Notes in Computer Science, vol 5134. Springer, Berlin, Heidelberg

Abstract

We present a reputation scheme for a pseudonymous peer-to-peer (P2P) system in an anonymous network. Misbehavior is one of the biggest problems in pseudonymous P2P systems, where there is little incentive for proper behavior. In our scheme, using ecash for reputation points, the reputation of each user is closely related to his real identity rather than to his current pseudonym. Thus, our scheme allows an honest user to switch to a new pseudonym keeping his good reputation, while hindering a malicious user from erasing his trail of evil deeds with a new pseudonym.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2008

Authors and Affiliations

  • Elli Androulaki
    • 1
  • Seung Geol Choi
    • 1
  • Steven M. Bellovin
    • 1
  • Tal Malkin
    • 1
  1. 1.Department of Computer ScienceColumbia University 

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