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Robust Membership Management for Ad-hoc Groups

Silja Mäki, Tuomas Aura, Maarit Hietalahti
Helsinki University of Technology
Laboratory for Theoretical Computer Science
FIN-02015 HUT, Finland


In ad-hoc networks, the network nodes or users often form peer groups. The members of a group may share an application, a physical location, or administrative tasks. Defining who is a member of the group is also the first step towards establishing a shared secret key for secure communications. Group membership management involves adding and removing nodes in the group, as well as a method for authenticating the group members. In this paper, we present a fully distributed, certificate-based system for group membership management. It is designed to suit highly dynamic ad-hoc networks where communications is sporadic and nodes often fail unexpectedly.

Full paper in Postscript

  author = 	 {Silja M\"aki and Tuomas Aura and Maarit Hietalahti},
  title = 	 {Robust Membership Management for Ad-hoc Groups},
  booktitle = 	 "Proc. 5th Nordic Workshop on Secure IT Systems
                  (NORDSEC 2000)",
  address =      {Reykjavik, Iceland},
  year =	 2000,
  month =	 oct