Colour Image Encryption Algorithm Using Burke-Shaw Chaotic System
Yakubu H. J, Yahi N.M. · International Journal of Advances in Engineering and Management · 2025
With the rapid development in information technology, the security of multimedia data such as images, videos, and audio has drawn widespread attention. Providing secured and efficient image encryption algorithm is the focus of many researchers. Recently, the design of new cryptographic algorithm based on chaotic systems has become an attractive image encryption solution. Studies have shown that 3-D continuous-time chaotic systems are found to contained in abundance chaotic structures and complex dynamical behaviour which could improve the quality and security of image encryption algorithm and hence the need to explore the Burke-Shaw chaotic system. This paper proposed image encryption algorithm for RGB images using the Burke-Shaw chaotic system. The proposed algorithm adopted the classic framework of the confusion/diffusion network in cryptography by using the chaotic sequences generated from the Burke-Shaw chaotic system which produced required permutation and substitution properties for a secure cipher. A standard test digital image namely peppers_colour_200.tif was used for testing the proposed algorithm. Performance analysis such as the Histogram Uniformity Analysis (HUA), Correlation Coefficient Analysis (CCA), Number of Pixels Change Rate (NPCR), and the Unified Averaged Changing Intensity (UACI) were carried out on the proposed algorithm. Results obtained show that the proposed scheme is highly effective and can stand strong against the statistical, differential and brute-force attacks.