Two dimensional chaotic scheme for image encryption in FPGA

Abstract

Transmitting data via the Internet has always posed significant security threats. Before and after the epidemic, there have been reports of an increase in hacking and infiltration cases in proportion to the number of digital transactions. As a result, there is a greater need for secure financial transactions. This field of study suggests using chaotic sequences, complex keys, and bit shuffling in encryption algorithms as a secure method for encrypting and decrypting images in a software and hardware environment. In order to ensure that the encryption meets the requirements, this article employs a variety of approaches and performance evaluations, such as histogram analysis, correlation, NPCR, UACI, the NIST test, MAE, and entropy analysis. This article describes how to use an FPGA board with a novel chaotic map that is two-dimensional and initialised using complex bit and key shuffling to encrypt colour images for security enhancement.