文献类型：期刊文献

英文题名：Image scrambling encryption algorithm of pixel bit based on chaos map

作者：Ye, Guodong[1]

机构：[1]Guangdong Ocean Univ, Coll Sci, Zhanjiang 524088, Peoples R China

年份：2010

卷号：31

期号：5

起止页码：347

外文期刊名：PATTERN RECOGNITION LETTERS

收录：SCI-EXPANDED(收录号：WOS:000275147900001)、、EI(收录号：20100512675455)、Scopus(收录号：2-s2.0-75149134193)、WOS

基金：The author would like to thank the Editor and the anonymous Referees for their valuable comments and suggestions to improve this paper. This research was partially Supported by the Natural Science Foundation of Guangdong Ocean University of PR China (No. 0812109).

语种：英文

外文关键词：Image scrambling encryption; Chaos map; Gray scrambling; Position permutation; Pixel bit

外文摘要：This paper presents an image scrambling encryption algorithm of pixel bit based on chaos map. The algorithm takes advantage of the best features of chaos maps, such as their pseudorandom property, system parameters, sensitive dependence on initial conditions and un-periodicity, combined with the pixel value bits. The new algorithm uses a single chaos map only once to implement the gray scrambling encryption of an image, in which the pixel values ranging from 0 to 255 are distributed evenly, the positions of all pixels are also permutated. In this way, the proposed method transforms drastically the statistical characteristic of original image information, so, it increases the difficulty of all unauthorized individual to break the encryption. Finally, the numerical experimental results show that the image encryption algorithm suggested has perfect hiding ability including large key space, sensitive key to initial conditions, high gray scrambling degree, and is suitable for practical use to protect the security of digital image information over the Internet. (C) 2009 Elsevier B.V. All rights reserved.