Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7132849 | Optics and Lasers in Engineering | 2015 | 14 Pages |
Abstract
In recent years, the operation efficiency of chaos-based image cryptosystems has drawn much more concerns. However, the workload arised from floating point arithmetic in chaotic map iteration prevents the efficiency promotion of these cryptosystems. In this paper, we present a novel image encryption scheme using Gray code based permutation approach. The new permutation strategy takes full advantage of (n, p, k)-Gray-code achievements, and is performed with high efficiency. A plain pixel-related image diffusion scheme is introduced to compose a complete cryptosystem. Simulations and extensive security analyses have been carried out and the results demonstrate the high security and operation efficiency of the proposed scheme.
Keywords
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Physical Sciences and Engineering
Engineering
Electrical and Electronic Engineering
Authors
Jun-xin Chen, Zhi-liang Zhu, Chong Fu, Hai Yu, Li-bo Zhang,