Authentication in stealth distributed hash tables

  • Authors:
  • Andrew MacQuire;Andrew Brampton;Idris A. Rai;Nicholas J. P. Race;Laurent Mathy

  • Affiliations:
  • Computing Department, Lancaster University, InfoLab 21, Lancaster, Lancashire LA1 4WA, United Kingdom;Computing Department, Lancaster University, InfoLab 21, Lancaster, Lancashire LA1 4WA, United Kingdom;Computing Department, Lancaster University, InfoLab 21, Lancaster, Lancashire LA1 4WA, United Kingdom;Computing Department, Lancaster University, InfoLab 21, Lancaster, Lancashire LA1 4WA, United Kingdom;Computing Department, Lancaster University, InfoLab 21, Lancaster, Lancashire LA1 4WA, United Kingdom

  • Venue:
  • Journal of Systems Architecture: the EUROMICRO Journal
  • Year:
  • 2008

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Abstract

Most existing DHT algorithms assume that all nodes have equal capabilities. This assumption has previously been shown to be untrue in real deployments, where the heterogeneity of nodes can actually have a detrimental effect upon performance. We now acknowledge that nodes on the same overlay may also differ in terms of their trustworthiness. However, implementing and enforcing security policies in a network where all nodes are treated equally is a non-trivial task. We therefore extend our previous work on Stealth DHTs to consider the differentiation of nodes based on their trustworthiness rather than their capabilities alone.