International Journal of Science, Engineering and TechnologyAuthors: Pankaj kumar singh, Professor Amit Thakur
Abstract: Wireless Sensor Networks (WSNs) are widely used in environmental monitoring, healthcare, military, and smart city applications, but their resource-constrained nature makes security and energy efficiency critical challenges. Traditional cryptographic approaches are often unsuitable due to high computation and communication overheads. To address this, we propose a Secured Energy Efficient Key Management (SEEKM) scheme, which ensures confidentiality, authentication, and integrity of sensor data while prolonging network lifetime. In the proposed approach, nodes are preloaded with a small subset of cryptographic keys from a global pool, and secure communication is established only through authenticated neighbors that share common keys. Lightweight session key derivation and message authentication are applied to minimize computational cost, while a first-order radio energy model accounts for transmission and cryptographic energy consumption. Simulation in MATLAB evaluates network performance in terms of packet delivery ratio, alive nodes over time, first node death (FND), half node death (HND), end of network lifetime (EOL), and security drop rate under node compromise attacks. Results demonstrate that SEEKM achieves a favorable trade-off between security and energy efficiency, reducing unauthorized transmissions while extending overall network lifetime compared to conventional key management schemes.
DOI: http://doi.org/10.5281/zenodo.16925497
