Energy Efficient Key Management Scheme using Modified Blom’s Scheme in Wireless Sensor Network

Abstract

Objectives: To compute a new secret common key pair value consuming less energy, time and storage. Methods/Statistical analysis: Finding of effective energy efficient key management scheme is still a challenging task. To produce effective key management system, Hexagonal cluster based routing protocol (HCRP) is proposed with modified Hadamard matrix as a public matrix that is obtained from the balance factor using AVL tree applied in each cluster head in the hexagonal network model where each vertex is considered as cluster head. Public matrix and secret matrix are used for finding common key pair value. Findings: The newly designed public matrix is beneficial to obtain the common key value. Result shows that proposed HCRP protocol consumes less packet ratio with minimum data rate. The work is implemented using NS2 simulator considering various factors like packet drops, computation time, energy consumption and storage overhead. Application/Improvements: The proposed key management scheme is an efficient one and can be used as a security measure for the computational field.