Energy Efficient Key Management Scheme Research Articles

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

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.

An Efficient and Secure Key Management Scheme for Hierarchical Wireless Sensor Networks

 Abstract—Key management in wireless sensor network is a complex task due to its nature of environment. Wireless sensor network comprise of large number of sensor nodes with different hardware abilities and functions. Due to the limited memory resources and energy constraints, complex security algorithms cannot be used in sensor networks. Therefore, an energy efficient key management scheme is necessary to mitigate the security risks. In this paper, we present an Efficient and Secure Key Management Scheme for Hierarchical Wireless Sensor Network (ESKMS). The proposed technique distributes the keys within a cluster efficiently and updates the pre-deployed keys to mitigate the node compromise attack. We also provide a detailed security analysis of our ESKMS protocol and show its advantages in avoiding different type of attacks from malicious nodes. Finally, using NS-2 simulator, the results shows that ESKMS is more energy efficient and provides a longer network lifetime compared to the existing key management schemes.