Color image encryption using random transforms, phase retrieval, chaotic maps, and diffusion

M. H. Annaby

doi:10.1016/j.optlaseng.2017.11.005

Color image encryption using random transforms, phase retrieval, chaotic maps, and diffusion

2018-04-01

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DOI：10.1016/j.optlaseng.2017.11.005

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The recent tremendous proliferation of color imaging applications has been accompanied by growing research in data encryption to secure color images against adversary attacks. While recent color image encryption techniques perform reasonably well, they still exhibit vulnerabilities and deficiencies in terms of statistical security measures due to image data redundancy and inherent weaknesses. This paper proposes two encryption algorithms that largely treat these deficiencies and boost the security strength through novel integration of the random fractional Fourier transforms, phase retrieval algorithms, as well as chaotic scrambling and diffusion. We show through detailed experiments and statistical analysis that the proposed enhancements significantly improve security measures and immunity to attacks. (C) 2017 Elsevier Ltd. All rights reserved.

Keywords:

Discrete fractional Fourier transform

Random transforms

Color image encryption

Chaotic maps

Phase retrieval

Chaotic diffusion

Spectral decomposition

Color image encryption using random transforms, phase retrieval, chaotic maps, and diffusion

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