Lightweight Datapath Implementation of ANU Cipher for Resource-Constrained Environments

Abstract

With the advent of technologies like IoT, the need for lightweight designs and architectures are in focus. The lightweight cryptography is the frontrunner for resolving the issues related to the memory size, power consumption and lesser gate counts while implementing the designs in resource-constrained environments. This paper focuses on lightweight datapath implementation of cipher ANU for environments like IoT. The 8-bit datapath design for ANU cipher is proposed and implemented in this paper for small, tiny 8-bit microcontrollers. The previous datapath implementation of ANU cipher results in higher gate counts and thus consumes more footprint area. The design proposed in this paper is lightweight and suitable for the environments where designs metrics like Gate Counts and power dissipation plays an important role. The paper presents detailed analysis and implementation of 8-bit datapath design of ANU cipher and compares with other existing datapaths designs on various design metrics.