Multigrid Based Key Predistribution Scheme in Ad Hoc Networks

摘要

Using polynomial-based key predistribution in distribution sensor networks for reference, this paper presents an efficient key predistribution scheme for Ad hoc networks: a multigrid-based key predistribution scheme. In this scheme we put forward the concept of multi-grid on which our key predistribution scheme is upbuilt, and the first time threshold scheme is introduced into the process of key transfer. The analysis in this paper indicates that this scheme has a number of nice properties, including high probability to establish pairwise keys, tolerance of node captures, and low communication overhea.