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A parallel image encryption algorithm based on the piecewise linear chaotic map and hyper-chaotic map
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DOI：10.1007/s11071-018-4251-9.png)
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This paper proposes a parallel digital image encryption algorithm based on a piecewise linear chaotic map (PWLCM) and a four-dimensional hyper-chaotic map (FDHCM). Firstly, two decimals are obtained based on the plain-image and external keys, using a novel parallel quantification method. They are used as the initial value and control parameter for the PWLCM. Then, an encryption matrix and four chaotic sequences are constructed using the PWLCM and FDHCM, which control the permutation and diffusion processes. The proposed algorithm is implemented and tested in parallel based on a graphics processing unit device. Numerical analysis and experimental results show that the proposed algorithm achieves a high encryption speed and a good security performance, which provides a potential solution for real-time image encryption applications.
Keyword:
Image security
Chaotic encryption
Parallel encryption
GPU
Security analysis
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期刊
IF:
6
论文数:
1.4W
被引数:
4.1W
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