A Novel Hybrid Image Encryption Scheme Using Henon Map for Secure Image Communication

Abstract

The combination of chaos theory and cryptographic methodologies constitutes a pivotal aspect of the information security. Owing to certain attributes of images, like their large data capacity and significant redundancy, image encryption needs specialized techniques instead of conventional text encryption. This study presents an innovative hybrid image encryption scheme that integrates Henon map–based key generation and involves diffusion process to ensure security and efficiency of the system. The experimental findings indicate that the methodology provides strong confusion and diffusion, low correlation between adjacent pixels, high entropy values close to 8, and number of pixel change rate (NPCR) above 99%. The method ensures secure image transmission using the same secret keys and maintains computational efficiency, making it suitable for practical applications in secure communication and multimedia protection. Unlike conventional Henon map–based encryption schemes, this study fuses Henon map–based key generation with error correction code (ECC) and an organized diffusion mechanism, enhancing both cryptographic robustness and reliability against channel errors during transmission.