A New Image Encryption Algorithm Based on Single S-Box and Dynamic Encryption Step

Chaotic-based S-box image encryption schemes promise to be a practical solution for securing digital images. However, the high-dimensional continuous chaotic has increased the algorithm's complexity. Recent alternatives that focused on double or multiple S-box es approaches, on the other hand,...

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Bibliographic Details
Published in:IEEE access Vol. 9; pp. 120596 - 120612
Main Authors: Jun, Wang Ji, Fun, Tan Soo
Format: Journal Article
Language:English
Published: Piscataway IEEE 2021
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects:
Algorithms
Chaos theory
chaotic systems
Complexity
Complexity theory
Continuous wavelet transforms
Correlation
Digital imaging
DNA
dynamic step
Encryption
Heuristic algorithms
Image encryption
Logistics
Security
substitution box (S-box)
ISSN:2169-3536, 2169-3536
Online Access:Get full text
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Summary:Chaotic-based S-box image encryption schemes promise to be a practical solution for securing digital images. However, the high-dimensional continuous chaotic has increased the algorithm's complexity. Recent alternatives that focused on double or multiple S-box es approaches, on the other hand, have been proven vulnerable to differential attacks. This paper presents an efficient and secure chaotic-based S-box image encryption scheme. Firstly, a single S-box with a size of <inline-formula> <tex-math notation="LaTeX">10\times 26 </tex-math></inline-formula> was constructed by using a low-dimensional chaotic system. Without a complex mathematical operation, the constructed single S-box has obvious efficiency advantages and achieved a higher image entropy rate than recent double or multiple S-box es. Secondly, a new dynamic encryption step method is proposed to solve the high correlation and deterministic problems in multiple S-box encryptions. Under the control of the dynamic encryption step algorithm, it effectively destroys the correlation between the source image's pixels. The experimental results and security analysis show that the proposed scheme enjoys higher security and is more efficient to secure digital images in real-world applications.
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ISSN:2169-3536
2169-3536
DOI:10.1109/ACCESS.2021.3108789