An efficient image encryption scheme using gray code based permutation approach

被引:63
作者
Chen, Jun-xin [1 ]
Zhu, Zhi-liang [2 ]
Fu, Chong [1 ]
Yu, Hai [2 ]
Zhang, Li-bo [2 ]
机构
[1] Northeastern Univ, Sch Informat Sci & Engn, Shenyang 110004, Peoples R China
[2] Northeastern Univ, Software Coll, Shenyang 110004, Peoples R China
基金
中国国家自然科学基金;
关键词
Image encryption; Gray code; Permutation; Pixel-related diffusion; ONLY MULTIMEDIA CIPHERS; QUANTITATIVE CRYPTANALYSIS; CHAOTIC STANDARD; ALGORITHM; DIFFUSION; BREAKING; SYSTEM; SECURITY; BAKER; MAPS;
D O I
10.1016/j.optlaseng.2014.11.017
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
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. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码:191 / 204
页数:14
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