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Analysis of the effects of scrambling and diffusion of logistic chaotic map on image encryption
Author(s): Fangzheng Zhao; Chenghai Li; Chen Liu; Jie Zhang; Qingshuang Hu
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Paper Abstract

The image encryption algorithm based on chaotic system has been widely used at present. For this kind of algorithm, the encryption mechanism of "scrambling - diffusion" and multiple iterations are mainly adopted. In this paper, the common one-dimensional logistic chaotic mapping is taken as an example to analyze the influence of "scrambling - diffusion" and the number of iterations on the encryption effect. The simulation results show that, when only the chaotic system is used to complete the encryption operation, except for the key space, the contribution of "scrambling - diffusion" and single diffusion operation to the image encryption effect is basically the same, and the number of iterations has no significant effect on the encryption. When a "scrambling - diffusion" mechanism and multiple iterations are employed, the encryption effect may be enhanced by combining other cryptographic operations.

Paper Details

Date Published: 14 August 2019
PDF: 10 pages
Proc. SPIE 11179, Eleventh International Conference on Digital Image Processing (ICDIP 2019), 111790F (14 August 2019); doi: 10.1117/12.2540017
Show Author Affiliations
Fangzheng Zhao, Air Force Engineering Univ. (China)
Chenghai Li, Air Force Engineering Univ. (China)
Chen Liu, Air Force Engineering Univ. (China)
Jie Zhang, Air Force Engineering Univ. (China)
Qingshuang Hu, Air Force Engineering Univ. (China)


Published in SPIE Proceedings Vol. 11179:
Eleventh International Conference on Digital Image Processing (ICDIP 2019)
Jenq-Neng Hwang; Xudong Jiang, Editor(s)

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