LEACH-Based Security Routing Protocol for WSNs

LEACH is the first protocol of wireless sensor networks based on clustering and layered structure technology, but the security problem related to the wireless sensor network is not considered. Therefore, it is necessary to provide an efficient security routing algorithm for practical wireless sensor networks. In this paper, we proposed a LEACH-based key management scheme for wireless sensor networks based on Exclusion Basis Systems and μ TESLA. We use EBS for key generation and distribution, and use μ TESLA to guarantee the cluster head can update security key after the first round. The proposed algorithm decreases the storage requirements of keys, and the network communications load for updating cluster keys. The key management scheme can enhance the survivability and ensure the security of WSNs.