A practical inter-sensor broadcast authentication scheme

Abstract

For inter-sensor broadcast authentication in wireless sensor networks, Chen et al. proposed a bootstrapping scheme which enables to save only neighboring nodes' hash-chain commitments, much fewer than whole network size, before deployment [2]. However, the scheme lacks scalability and is not tolerant for node isolation. Therefore, we suggest new mechanism providing scalability and present its modified version with node-redemption which makes most of nodes participate in broadcast authentication with a little additional memory. © Springer-Verlag Berlin Heidelberg 2007.