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Image encryption algorithm with 2D coupled discrete chaos
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AI
DOI：10.1007/s11042-023-15002-y.png)
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Abstract
En 中文
A two-dimensional coupled discrete chaotic system is constructed by combining a two-dimensional coupled map lattice with a dynamic discrete tent map. The system has good initial value sensitivity and can quickly generate multi-dimensional integer pseudo-random sequences with uniform distribution properties. Based on this system, a color image encryption algorithm is designed, using the integer pseudo-random sequence generated by the two-dimensional coupled discrete chaos to construct the diffusion function, complete the diffusion operation of pixels, and achieve the position permutation of pixels by using the uniform distribution property of the chaotic sequence to realize the image encryption operation. The simulation results prove that the algorithm has a large key space, high key sensitivity and high security, and can effectively resist common cryptanalysis,and meet the demand for the secure transmission of image data.
Keywords:
Chaotic system
Two-dimensional coupled
Tent map
Image encryption
Journal
IF:
3
Papers:
1.9W
Citations:
3.2W