Chaotic Image Encryption Using Piecewise-Logistic-Sine Map

doi:10.1109/ACCESS.2023.3257349

Chaotic Image Encryption Using Piecewise-Logistic-Sine Map

2023-01-01

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DOI：10.1109/ACCESS.2023.3257349

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The classical one-dimension chaotic maps are not adequately secure, and some improved maps usually have a high time complexity. To address these problems, this paper presents a new Piecewise-Logistic-Sine map (PLSM). The bifurcation diagrams, Lyapunov exponent, and running time of the proposed PLSM are analyzed, and the outcomes show that it has better chaotic behavior with low time complexity. Furthermore, diffusion by certain rules is vulnerable to attack, so a PLSM-based image encryption scheme with random exclusive OR diffusion is proposed. Using a 256-bit secret key, the initial value and parameters of PLSM are calculated by the key distribution method. Then four chaotic sequences are generated by PLSM, they are used in three rounds of random exclusive OR diffusion. This scheme can spread a small change in the original image to all pixels, and the performance evaluation shows the security of this image encryption scheme.

Keywords:

Encryption

Time complexity

Bifurcation

Security

Behavioral sciences

Logistics

Histograms

Piecewise chaotic map

image security

chaos-based encryption

image encryption

Chaotic Image Encryption Using Piecewise-Logistic-Sine Map

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