Design of secure S-Boxes via novel 2D-Zettle chaotic map and ABC algorithm for robust image encryption

This work addresses the challenge of improving security in chaos-based cryptographic systems by introducing a more effective chaotic map that is derived from the Zettle test function, providing better resistance to attacks and ensuring higher security. The design of secure S-Boxes for the R, G, and B colour channels is a critical challenge in colour image encryption. The proposed method addresses this challenge by significantly enhancing security through the use of the ABC algorithm in conjunction with the novel 2D-Zettle chaotic map. Additionally, the proposed image encryption technique addresses the problem of optimizing key selection for both encryption and decryption, ensuring robust security against various attacks and noise, as demonstrated by extensive performance evaluations. Furthermore, security assessments, including statistical analyses and resilience tests against various attacks and noise, confirm the method’s exceptional efficiency and broad applicability in safeguarding digital assets.