Gesellschaft fr Informatik e.V.

Lecture Notes in Informatics


Informatik 2004, Informatik verbindet, Band 1, Beiträge der 34. Jahrestagung der Gesellschaft für Informatik e.V. (GI), Ulm, 20. - 24. September 2004 P-50, 128-132 (2004).

GI, Gesellschaft für Informatik, Bonn
2004


Editors

Peter Dadam, Manfred Reichert (eds.)


Copyright © GI, Gesellschaft für Informatik, Bonn

Contents

A low-cost solution for frequent symmetric key exchange in ad-hoc networks

Markus Volkmer and Sebastian Wallner

Abstract


Next to authentication, secure key exchange is considered the most critical and complex issue regarding ad-hoc network security. We present a low-cost, (i.e. low hardware-complexity) solution for feasible frequent symmetric key exchange in adhoc networks, based on a Tree Parity Machine Rekeying Architecture. A key exchange can be performed within a few milliseconds, given practical wireless communication channels and their limited bandwidths. A flexible rekeying functionality enables the full exploitation of the achievable key exchange rates. Characteristics of a standardcell ASIC design realisation as IP-core in -technology are evaluated. $\textcent \sterling $\? {\S} \copyright


Full Text: PDF

GI, Gesellschaft für Informatik, Bonn
ISBN 3-88579-379-2


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