An image encryption algorithm based on spatiotemporal chaos and middle order traversal of a binary tree  

作　　者：Yining Su Xingyuan Wang Shujuan Lin 苏怡宁;王兴元;林淑娟(School of Information Science and Technology,Dalian Maritime University,Dalian 116026,China)

机构地区：[1]School of Information Science and Technology,Dalian Maritime University,Dalian 116026,China

出　　处：《Chinese Physics B》2022年第11期262-271,共10页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China(Grant No.61672124);the Password Theory Project of the 13th Five-Year Plan National Cryptography Development Fund(Grant No.MMJJ20170203);Liaoning Province Science and Technology Innovation Leading Talents Program Project(Grant No.XLYC1802013);Key Research and Development Projects of Liaoning Province,China(Grant No.2019020105-JH2/103);Jinan City‘20 universities’Funding Projects Introducing Innovation Team Program(Grant No.2019GXRC031).

摘　　要：This paper proposes an image encryption algorithm based on spatiotemporal chaos and middle order traversal of a binary tree.Firstly,other programming software is used to perform the middle order traversal,and the plaintext image is sorted according to the middle order traversal sequence on the permutation.Secondly,the chaotic sequence is generated using the coupled map lattice to set the chaotic interference value.Finally,the XOR operation between the adjacent pixel values of the replacement image is completed to generate the ciphertext matrix.The simulation and experimental results show that the proposed algorithm can resist typical attacks and has good robustness.

关 键 词：spatiotemporal chaos image encryption middle order traversal coupled map lattice 

分 类 号：TP309.7[自动化与计算机技术—计算机系统结构]