A New Hybrid Image Encryption Model Based on Custom Logic Functions and Dynamic Chaotic Keys

Adil Khalil; Adel Al Imam

doi:10.35377/saucis...1749483

EN

A New Hybrid Image Encryption Model Based on Custom Logic Functions and Dynamic Chaotic Keys

Abstract

Any secure image encryption system needs to distort the statistical and visual structure of the image to prevent unauthorized access. Unlike traditional chaos-XOR methods, this paper presents a new hybrid image encryption model based on dynamic chaotic key generation, combined with two novel dedicated bit-level logic functions. The proposed model includes image pre-processing steps, such as flattening color channels and pixel shuffling, to break down the spatial structure. Bit-level nonlinear transformations are then applied using dedicated bit-level logic functions (FLF and FOF). The Bogdanov scheme was used as the chaotic key generator. The image encryption quality was evaluated against four state-of-the-art models using Entropy, NPCR, UACI, PSNR, and SSIM, along with visual analysis of histograms and correlation indices. The experimental results reported an average Entropy value of 7.95. NPCR rate and UACI values were 99.61% and 33.2% respectively. The correlation coefficient was 0.0046. The SSIM remained at 1.0, while the average encryption execution was 0.47 seconds. These results demonstrate that the proposed system can achieve a high level of visual security. This study represents a qualitative and quantitative contribution to the development of secure digital image processing methods.

Keywords

References

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Details

Primary Language

English

Subjects

Computer Software

Journal Section

Research Article

Authors

Adil Khalil ^*
0000-0003-3379-0603
Iraq

Adel Al Imam
0009-0004-0979-8781
Iraq

Early Pub Date

December 11, 2025

Publication Date

December 29, 2025

Submission Date

July 23, 2025

Acceptance Date

October 27, 2025

Published in Issue

Year 2025 Volume: 8 Number: 4

DOI

https://doi.org/10.35377/saucis...1749483

IZ

https://izlik.org/JA87LJ66HT

Cite

RIS / Bibtex

APA

Khalil, A., & Al Imam, A. (2025). A New Hybrid Image Encryption Model Based on Custom Logic Functions and Dynamic Chaotic Keys. Sakarya University Journal of Computer and Information Sciences, 8(4), 762-772. https://doi.org/10.35377/saucis...1749483

AMA

1.Khalil A, Al Imam A. A New Hybrid Image Encryption Model Based on Custom Logic Functions and Dynamic Chaotic Keys. SAUCIS. 2025;8(4):762-772. doi:10.35377/saucis.1749483

Chicago

Khalil, Adil, and Adel Al Imam. 2025. “A New Hybrid Image Encryption Model Based on Custom Logic Functions and Dynamic Chaotic Keys”. Sakarya University Journal of Computer and Information Sciences 8 (4): 762-72. https://doi.org/10.35377/saucis. 1749483.

EndNote

Khalil A, Al Imam A (December 1, 2025) A New Hybrid Image Encryption Model Based on Custom Logic Functions and Dynamic Chaotic Keys. Sakarya University Journal of Computer and Information Sciences 8 4 762–772.

IEEE

[1]A. Khalil and A. Al Imam, “A New Hybrid Image Encryption Model Based on Custom Logic Functions and Dynamic Chaotic Keys”, SAUCIS, vol. 8, no. 4, pp. 762–772, Dec. 2025, doi: 10.35377/saucis...1749483.

ISNAD

Khalil, Adil - Al Imam, Adel. “A New Hybrid Image Encryption Model Based on Custom Logic Functions and Dynamic Chaotic Keys”. Sakarya University Journal of Computer and Information Sciences 8/4 (December 1, 2025): 762-772. https://doi.org/10.35377/saucis. 1749483.

JAMA

1.Khalil A, Al Imam A. A New Hybrid Image Encryption Model Based on Custom Logic Functions and Dynamic Chaotic Keys. SAUCIS. 2025;8:762–772.

MLA

Khalil, Adil, and Adel Al Imam. “A New Hybrid Image Encryption Model Based on Custom Logic Functions and Dynamic Chaotic Keys”. Sakarya University Journal of Computer and Information Sciences, vol. 8, no. 4, Dec. 2025, pp. 762-7, doi:10.35377/saucis. 1749483.

Vancouver

1.Adil Khalil, Adel Al Imam. A New Hybrid Image Encryption Model Based on Custom Logic Functions and Dynamic Chaotic Keys. SAUCIS. 2025 Dec. 1;8(4):762-7. doi:10.35377/saucis. 1749483