文献类型：期刊文献

英文题名：An efficient symmetric image encryption algorithm based on an intertwining logistic map

作者：Ye, Guodong[1,2];Huang, Xiaoling[1]

机构：[1]Guangdong Ocean Univ, Fac Math & Comp Sci, Zhanjiang 524088, Peoples R China;[2]Zhejiang Univ, Coll Informat Sci & Elect Engn, Hangzhou 310027, Zhejiang, Peoples R China

年份：2017

卷号：251

起止页码：45

外文期刊名：NEUROCOMPUTING

收录：SCI-EXPANDED(收录号：WOS:000402443900005)、、EI(收录号：20171703590643)、Scopus(收录号：2-s2.0-85017585779)、WOS

基金：The authors would like to thank the Editor and the three anonymous reviewers for their valuable comments and suggestions to improve the quality of the paper. This work was supported by the National Natural Science Foundation of China (No. 61602124), the Natural Science Foundations of Guangdong Province of China (No. 2016A030310333, No. 2015A030313614, No. 2015A030313620), the Science & Technology Planning Projects of Zhanjiang City of China (No. 2015B01098, No. 20151301051), the Program for Scientific Research Start-up Funds of Guangdong Ocean University of China, and the Special Funding Program for Excellent Young Scholars of Guangdong Ocean University of China (No. HDYQ2017006).

语种：英文

外文关键词：Image privacy; Image encryption; Chaotic map; Chaotic cryptography

外文摘要：Differing from the traditional permutation-diffusion architecture, an efficient symmetric image encryption algorithm is designed in this paper. To resolve the issue of low sensitivity of a plain-image, which is measured by a unified averaged changing intensity and the number of changing pixel rate, pre-modular operation is proposed to be used for pre-processing a classical encryption algorithm. Because of the invariance of pixel summation in the plain-image before and after pixel positions exchange, the keystream used for the permutation operation is designed to be dependent on the plain-image. Since for most encryption algorithms it is hard to implement the diffusion operation in relation with the plain-image dependence, a self-adaptive encryption scheme is proposed as a remedy. Consequently, the keystream for diffusion becomes dependent on the plain-image, which still satisfies the requirement as a symmetric cipher. To that end, by taking full advantage of the chaotic intertwining logistic map and its unpredictability, a new cipher with pre-modular, permutation and diffusion is designed for image encryption, which is then simulated and tested. Numerical experiments and security analysis demonstrate that the new cipher is secure enough for image communication over the open network. (C) 2017 Elsevier B.V. All rights reserved.