Optimal lightweight cryptography algorithm for environmental monitoring service based on IoT

Abstract

Even though IoT devices for monitoring and managing the environment are already present at national level, vulnerability related to security in these systems still prevails at large. Therefore, it is required to study and implement a feasible security protocol in these systems. In this paper, we tested optimal lightweight cryptography for security enhancement in an IoT based Environmental Monitoring System that monitors and controls the surrounding temperature and humidity. We compared the CPU usage and processing time when various lightweight cryptography was applied. This helped us to conclude that the optimal lightweight cryptography for IoT based system is LEA which is a block cipher.