Reducing ıTESLA memory requirements

Authors:
A. E. Hegazy;A. M. Darwish;R. El-Fouly
Affiliations:
Cairo University, Egypt;Cairo University, Egypt;Cairo University, Egypt
Venue:
ICSNC '07 Proceedings of the Second International Conference on Systems and Networks Communications
Year:
2007

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Abstract

This paper addresses secure broadcast in wireless sensor networks (WSN). We introduce new set of security protocols for broadcast operation, providing enhancements over the current set of security protocols. We introduce two protocols as an enhancement for ìTESLA protocol. In these protocols we focuses on reducing the memory requirements for the broadcast session while maintain the same security level. The first protocol, Low Buffer ìTESLA (LB- ìTESLA), achieves 88% reduction in the node buffer size comparing to the original ìTESLA protocol. The second protocol, Reversed MAC ìTESLA (RM- ìTESLA), achieves 92% reduction in the node buffer size comparing to the original ìTESLA protocol. This reduction enables longer session's duration and reduces the memory requirement.