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Contributory group key agreement protocols, revisited for mobile ad-hoc groups

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1 Author(s)
Manulis, M. ; Horst-Gortz Inst., Ruhr-Univ., Bochum

Security of various group-oriented applications for mobile ad-hoc groups requires a group secret shared between all participants. Contributory group key agreement (CGKA) protocols, originally designed for peer groups in localand wide-area wired networks, can also be used in ad-hoc scenarios because of the similar security requirements and trust relationship between participants that excludes any trusted central authority (e.g., a group manager) from the computation of the group key. We revise original protocols from the perspective of the mobile ad-hoc communication, classify mobile ad-hoc groups based on the performance of involved mobile devices, specify trust relationship between participants, propose further optimizations to original protocols to achieve better communication, computation and memory complexities

Published in:

Mobile Adhoc and Sensor Systems Conference, 2005. IEEE International Conference on

Date of Conference:

7-7 Nov. 2005