Title: Research on image encryption algorithm based on logistic chaotic system

Authors: Qing Lu; Te Zhang; Junxiang Wan; Siyuan Xu

Addresses: Hunan Police Academy, Changsha, Hunan, China; School of Computer Science and Engineering, Central South University, Changsha, Hunan, China ' China Academy of Launch Vehicle Technology, Beijing, China ' Public Security Bureau of Yueyang City, Yueyang, China ' Wuhan Zhongyuan Huadian Technology Co., Ltd., Wuhan, China

Abstract: In the recently proposed image encryption algorithm (Zhang and Zhang, 2020) based on the logistic chaotic system, chaotic sequences and plaintext images are first generated through a key for XOR operations. Subsequently, pixel and block chaos are applied according to the chaotic sequence, finally resulting in the ciphertext image. Results show that the correlation between plaintext and ciphertext images in this algorithm is low, and no ciphertext feedback mechanism exists. Consequently, this algorithm is vulnerable to ciphertext selection attacks. The algorithm is improved, and the relevant test analysis of the improved algorithm is carried out, demonstrating better results than the algorithm proposed by Zhang and others.

Keywords: chaotic system; image encryption; chosen-ciphertext attack.

DOI: 10.1504/IJCAT.2025.149857

International Journal of Computer Applications in Technology, 2025 Vol.77 No.1/2, pp.53 - 62

Received: 05 Dec 2024
Accepted: 08 Apr 2025
Published online: 14 Nov 2025 *

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