Commutative encryption and watermarking algorithm based on compound chaotic systems and zero-watermarking for vector map

Tan, Tao; Zhang, Liming; Zhang, Mingwang; Wang, Shuai; Wang, Lei; Zhang, Ziyi; Liu, Shuaikang; Wang, Pengbin

doi:10.1016/j.cageo.2024.105530

Cited by 1 publication

(1 citation statement)

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“…A nonlinear system exhibiting chaotic behavior should possess high sensitivity, ergodicity, unpredictability, and initial value sensitivity, as per Devaney’s definition [ 2 ]. These important properties make it popular in security applications such as audio encryption [ 3 , 4 ], image encryption [ 5 , 6 , 7 ], image watermarking [ 8 , 9 ], and data hiding [ 10 , 11 , 12 ]. For these chaotic-based applications, the security largely depends on the performance of the underlying chaotic system.…”

Section: Introductionmentioning

confidence: 99%

An n-Dimensional Chaotic Map with Application in Reversible Data Hiding for Medical Images

Yang,

Chang,

Feng

et al. 2024

Entropy

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The drawbacks of a one-dimensional chaotic map are its straightforward structure, abrupt intervals, and ease of signal prediction. Richer performance and a more complicated structure are required for multidimensional chaotic mapping. To address the shortcomings of current chaotic systems, an n-dimensional cosine-transform-based chaotic system (nD-CTBCS) with a chaotic coupling model is suggested in this study. To create chaotic maps of any desired dimension, nD-CTBCS can take advantage of already-existing 1D chaotic maps as seed chaotic maps. Three two-dimensional chaotic maps are provided as examples to illustrate the impact. The findings of the evaluation and experiments demonstrate that the newly created chaotic maps function better, have broader chaotic intervals, and display hyperchaotic behavior. To further demonstrate the practicability of nD-CTBCS, a reversible data hiding scheme is proposed for the secure communication of medical images. The experimental results show that the proposed method has higher security than the existing methods.

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