A Novel Pairwise Key Establishment and Management in Hierarchical Wireless Sensor Networks (HWSN) Using Matrix

Abstract

Key Management is an important challenging issue in wireless sensor networks to provide the confidentiality for the sensitive data which is sensed by the sensors from various fields. There are so many resource constraints for wireless sensor networks, implementing key management scheme in WSN. In general many key management schemes are proposed for Computer Networks like ECC, Diffie-Hellman, RSA and public key based schemes, but all are not suitable for wireless sensor networks. WSNS are suitable for many applications like Smart homes, Automation, Vehicular traffic management, Habitat Monitoring, Precision agriculture, Disaster detection and Surveillance. All the applications need secure communication and must protect from the eavesdropping, key compromising, sensor node capture attack, and message authentication. In this paper, we propose A Novel Pairwise Key Establishment and Management in Hierarchical Wireless Sensor Networks (HWSN) Using Matrix to prevent all the above attack and to achieve network connectivity, scalability, and resilience for the network. This scheme is used for the heterogeneous sensor networks. In this scheme, Base station prepares the key matrices for Cluster heads and Sensor nodes and generates the key chains for both cluster head and sensor nodes and preloaded before deployment. Our scheme prevents the following attacks: sensor capture attacks, key compromising attacks, malicious node attacks.