Design and implementation of group key agreement protocol for wireless sensor network

To solve the security problem existing in wireless sensor network node group, a round fixed group key agreement protocol based on ECC was designed and implemented. From the point of view of design and implementation, window sliding technique based on NAF expression was integrated to optimize the scalar multiplication in ECC firstly. Then considering the problem in implementation on the real wireless sensor network, a data stream driving protocol solution was proposed. Finally all design was implemented on homebred wireless sensor network nodes GAINST_CC2430 which is the first group key agreement protocol implementation on actual wireless sensor network.