Enhanced image encryption technique utilizing chaotic mapping and dynamic DNA encoding

Tianbao Xue; Quanxiang Lan

doi:10.1117/12.3051381

18 November 2024 Enhanced image encryption technique utilizing chaotic mapping and dynamic DNA encoding

Tianbao Xue, Quanxiang Lan

Proceedings Volume 13403, International Conference on Algorithms, High Performance Computing, and Artificial Intelligence (AHPCAI 2024) ; 134031S (2024) https://doi.org/10.1117/12.3051381
Event: International Conference on Algorithms, High Performance Computing, and Artificial Intelligence, 2024, Zhengzhou, China

Abstract

Chaotic image encryption technology has become a key method for safeguarding sensitive image data and has garnered significant attention and research recently. To address the issues of limited key space and low encryption efficiency in conventional image encryption methods, this paper introduces a novel chaotic image encryption algorithm. This algorithm leverages Chen and Logistic-Tent chaotic mappings along with dynamic DNA encoding rules. Initially, the SHA-256 algorithm is employed to produce a 256-bit hash sequence, which serves as the initial key for the chaotic mappings. The chaotic sequences generated by these mappings are then used to rearrange the rows and columns of image pixels, while dynamically chosen DNA encoding rules are applied to encode each pixel. Following this, the DNA-encoded image matrix is XORed with the chaotic sequence matrix to produce a scrambled image matrix. In the final step, the encoded ciphertext image is decoded using DNA, and minor plaintext alterations are diffused across the entire ciphertext through multi-level diffusion processes. This approach enhances the complexity and security of the encryption method. Experimental results indicate that the proposed algorithm effectively withstands various types of attacks while maintaining high encryption efficiency, demonstrating promising application potential and practical value.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Tianbao Xue and Quanxiang Lan "Enhanced image encryption technique utilizing chaotic mapping and dynamic DNA encoding", Proc. SPIE 13403, International Conference on Algorithms, High Performance Computing, and Artificial Intelligence (AHPCAI 2024) , 134031S (18 November 2024); https://doi.org/10.1117/12.3051381

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KEYWORDS

Image encryption

Matrices

Image enhancement

Statistical analysis

Computer security

Histograms

Image processing

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