文献类型：期刊文献

英文题名：An Image Encryption Scheme Based on Lorenz Hyperchaotic System and RSA Algorithm

作者：Lin, Riguang[1];Li, Sheng[1]

机构：[1]Guangdong Ocean Univ, Fac Math & Comp Sci, Zhanjiang 524088, Peoples R China

年份：2021

卷号：2021

外文期刊名：SECURITY AND COMMUNICATION NETWORKS

收录：SCI-EXPANDED(收录号：WOS:000664804400003)、、EI(收录号：20211910336679)、Scopus(收录号：2-s2.0-85105414611)、WOS

基金：This work was supported by the Natural Science Foundation of Guangdong Province (2018A030307062) and the Fund of Southern Marine Science and Engineering Guangdong Laboratory (Zhanjiang) (ZJW-2019-04).

语种：英文

外文关键词：Additives - Chaotic systems - Diffusion - Iterative methods - Matrix algebra - Pixels

外文摘要：This research proposes a new image encryption scheme based on Lorenz hyperchaotic system and Rivest-Shamir-Adleman (RSA) algorithm. Firstly, the initial values of the Lorenz hyperchaotic system are generated by RSA algorithm, and the key stream is produced iteratively. In order to change the position and gray value of the pixel, the image data are hidden by additive mode diffusion. Secondly, the diffusion image matrix is reshaped into a one-dimensional image matrix, which is confused without repetition to hide the image data again. Then, the finite field diffusion algorithm is executed to realize the third hiding of the image information. In order to diffuse the pixel information into the entire cipher image, the additive mode diffusion algorithm needs to be looped twice. Finally, the cipher image can be obtained. The experimental results prove that the image encryption scheme proposed in this research is effective and has strong antiattack and key sensitivity. Moreover, the security of this encryption scheme relies on the RSA algorithm, which has high security.