文献类型：期刊文献

英文题名：Image encryption algorithm using chaotic Chebyshev generator

作者：Huang, Xiaoling[1]

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

年份：2012

卷号：67

期号：4

起止页码：2411

外文期刊名：NONLINEAR DYNAMICS

收录：SCI-EXPANDED(收录号：WOS:000300187500007)、、EI(收录号：20121314906308)、Scopus(收录号：2-s2.0-84858860155)、WOS

基金：This work is supported partially by the Science & Technology Program Foundation of Zhanjiang City of P.R. China (No. 2011C3109002).

语种：英文

外文关键词：Image encryption; Chebyshev function; Confusion; Diffusion; Key stream generation

外文摘要：In this paper, we present a chaotic image encryption algorithm in which the key stream is generated by nonlinear Chebyshev function. The novel method of designing pseudorandom chaotic sequence is carried out with the created secret keys depending on with each other. We then make multiple permutation of pixels to decrease the strong correlation between adjacent pixels in original plain image. Further, a two-dimensional Chebyshev function is considered to avoid known-plaintext and chosen-plaintext attacks in diffusion process, i.e., even with a one-bit change in original plain image, the encrypted image would become different greatly. Simulation results are given to show that the proposed method can offer us an efficient way of encrypting image.