文献类型：期刊文献

英文题名：An image encryption algorithm based on hyper-chaos and DNA sequence

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

机构：[1]Guangdong Ocean Univ, Coll Sci, Zhanjiang 524088, Guangdong, Peoples R China;[2]City Univ Hong Kong, Dept Elect Engn, Kowloon, Hong Kong, Peoples R China

年份：2014

卷号：72

期号：1

起止页码：57

外文期刊名：MULTIMEDIA TOOLS AND APPLICATIONS

收录：SCI-EXPANDED(收录号：WOS:000339889800004)、、EI(收录号：20143418085156)、Scopus(收录号：2-s2.0-84905969152)、WOS

基金：This work is part of the research project funded by the Science & Technology Program Foundation of Zhanjiang City of P.R. China (No. 2011C3109002), and the Natural Science Foundation of Guangdong Ocean University of P.R. China (No. 1212334).

语种：英文

外文关键词：DNA sequence; Image encryption; Hyper-chaos; Complementary rule; Modular operation

外文摘要：A novel image encryption algorithm making using of hyper-chaos and DNA sequence is presented here. A four-dimensional hyper-chaos system is used to generate the pseudo-random sequence, which is transformed into a biologic DNA sequence to diffuse the image blocks. A circular permutation is performed on the plain-image when it is in DNA status. Together with classical structure of permutation plus diffusion, the simulation results show that the proposed image encryption algorithm has a satisfactory performance. Moreover, our method can resist the known-plaintext and chosen-plaintext attacks with four parameters r (i) (i = 1,2,3,4) dependent on the plain-image. These parameters generate different key streams for different plain-image even if the initial conditions are the same.