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Intrusion-Tolerant Group Management for Mobile Ad-Hoc Networks

Summary: Intrusion-Tolerant Group Management for
Mobile Ad-Hoc Networks
Jonathan Kirsch1 and Brian Coan2
1 Johns Hopkins University, Baltimore, MD. jak@cs.jhu.edu
2 Telcordia Technologies, Piscataway, NJ. coan@research.telcordia.com
Technical Report CNDS-2009-2 - March 2009
Abstract--This paper presents PICO, a generic infrastructure
for secure group communication in mobile ad-hoc networks
(MANETs). PICO provides an intrusion-tolerant group manage-
ment service, allowing clients to join or leave a logical group
and enabling group members to communicate securely using
a dynamically generated group encryption key. Since MANETs
are characterized by relatively high message loss and frequent
network partitions, PICO is built around a new Byzantine fault-
tolerant agreement protocol designed to cope with these con-
ditions. The agreement protocol leverages weak (commutative)
semantics to allow multiple partitions to continue operating in
parallel without sacrificing correctness, and it uses threshold
cryptography to provide efficient reconciliation and coordination


Source: Amir, Yair - Department of Computer Science, Johns Hopkins University


Collections: Computer Technologies and Information Sciences