Lightweight AES Algorithm for Resource Constraint Devices

Abstract

Our world is slowly approaching brink of mankind's next technological revolution since the conception of Internet of Things (IoT) emerges. The realization of IoT requires an enormous amount of sensor nodes which have limited battery power, memory, computational latency and communication bandwidth to acquire inputs from the connected objects. In the current developments of the resource constraint environments, the trend is shifted towards lightweight cryptographic algorithm. Many lightweight cryptographic algorithms have been developed and also existing algorithms are modified in terms of resource constraint environment. In this paper we analyzed a very popular block cipher AES-128 and tried to make it lightweight regarding energy consumption. We also studied some other lightweight block ciphers which are optimized in terms of energy, power and memory.