Designing Algorithm for Lightweight Stream Cipher

Abstract

The role of embeddable cryptographic processors in revolutionizing defense communications for the Indian Navy bears immense significance. These processors serve as catalysts for a diverse range of novel applications critical to naval operations, encompassing tailored smartphones and robust tablet computers engineered for frontline tactical deployment. Moreover, they facilitate the establishment of secure tactical Wi-Fi networks, unmanned vehicle control systems, and real-time targeting capabilities, thereby bolstering operational efficacy and security. Moreover, this technological evolution expedites the adoption of modernized cryptography, promising to furnish secure wireless computing solutions even in the most arduous maritime environments. In alignment with the Indian Navy’s modernization endeavors, a concerted attempt is underway to harness commercial o↵-the-shelf (COTS) cryptographic algorithms and processing hardware. This strategic approach not only fortifies resilience against technological obsolescence but also bolsters support for network-centric operations, streamlines data dissemination and sharing, and advances interoperability with allied naval forces. In response to these imperatives, the primary focus of the thesis is to develop a novel lightweight stream cipher algorithm expressly tailored for utilization within the Indian Navy, specifically for facilitating data communication among computers interconnected via internal LAN. Drawing inspiration from the FASTA, PASTA Lightweight Cryptography (LWC) algorithms and the esteemed NIST CEASER competition awardee, the ASCON family.