Research Of Group Key Agreement And Management Mechanism In Mobile Ad Hoc Network

Mobile ad hoc network is a new wireless mobile network does not rely on the assistance of any infrastructure, without the centre control nodes and limited calculation resource. The core issue of mobile ad hoc network security mechanisms is to establish a security, efficient and viable key management system.In this paper, it researches and analysis the existing mobile ad hoc network group key agreement and management mechanism in domestic and foreign, and summarizes the general ideas and methods to the problem of mobile ad hoc network group key agreement and management. And so, it is proposed that three group key agreement and management protocols adapt to different network topology: the fully-distributed group key agreement and management protocol based on Feldman scheme, the distributed group key agreement and management protocol based on complete binary tree, the clustering group key agreement and management protocol based on the improved WCA algorithm. These protocols can resolve the key challenges in system security and performance when nodes move.