Abstract:

Security of broadcast communication is the key challenge in wireless sensor networks. The characteristic, key security issues and design goal for achieving the security of broadcast communication in wireless sensor network are analyzed firstly in this paper, and then global broadcast authentication based on public key algorithm and local broadcast authentication based on one-way key chain are proposed separately as well, as a consequence, reliability, integrity, freshness of broadcast were acquired effectively. The performance analysis showed our method was efficient in communication, energy consume and storage.