GEN-CRYPT A Rotational Algorithm Towards a Secure Hybrid Image Encryption Framework
Abstract: The explosive growth of digital communication and multimedia systems has enhanced the demand for secure and efficient image protection methods. Traditional cryptographic operations are not entirely applied to the image data as there exist some properties of images, which includes high redundancies between pixels and dominant spatial correlativity. As a result, the research challenge to be addressed is the design of strong image encryption methods that can ensure high security and computational efficiency. In this work, a new hybrid cryptography framework has been proposed for highly secured image encryption and intensive data safety. In the next scheme, despite integrating permutation-based confusion and diffusion-based transformation mechanisms into a hybrid encryption architecture, it could not disrupt pixel correlation as well as provide strong diffusion properties throughout the ciphertext. In the first step of permutation, pixels at the spatial-level are rearranged to destroy the original structure of image, and thanks to second stage for diffusion slight changes in one pixel will produce a huge modification for sealed image thus improving its avalanche impact and defending against differential assault. Various statistical and differential methods such as histogram analysis, entropy of information, adjacent pixel correlation, NPCR (Number of Pixels Change Rate), UACI (Unified Average Changing Intensity) and key sensitivity tests have been performed to quantify the security strength of the proposed scheme. Experimental outcomes show the proposed enciphered images have approximately uniform histogram distributions, entropy values close to ideal, and much lower correlation between neighbour pixels. In addition, NPCR and UACI results reflects strong resistance against differential cryptanalysis as well as high key sensitivity. The above results show that the devised hybrid cryptographic structure can be an effective and secured algorithm with lower cost in terms of speed to secure digital images within new generation multimedia communication systems. Keywords: Cryptographic security; data security; secure image protection; differential attack resistance; hybrid cryptography; image encryption Author (s): Firas A. Hashim ;Hussein Abid Hilal Affilation: AI Department, College of Science, Al-Mustansiriyah University Cite this article
Firas A. Hashim , Hussein Abid Hilal , "GEN-CRYPT A Rotational Algorithm Towards a Secure Hybrid Image Encryption Framework",
Journal of Positive Sciences,
6(2),
2026,
48-63,
DOI:
https://doi.org/10.52688/ASP62906
