A Bit Level Encryption Scheme Based on Hyper-chaotic System Combing with the Ideology of Central Dogma

作     者：ZHANG Shun YANG Liang ZHANG Yuan GAO Tiegang 

作者机构：College of software Nankai University 

出 版 物：《Chinese Journal of Electronics》 (电子学报(英文))

年 卷 期：2018年第27卷第3期

页      面：595-602页

核心收录：

学科分类：0808[工学-电气工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 080203[工学-机械设计及理论] 0802[工学-机械工程] 081201[工学-计算机系统结构] 0701[理学-数学] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

基　　金：the Natural Science Foundation of Tianjin(No.16JCYBJC15700) 

主　　题：Image encryption Bit-level encryption Central dogma Hyper-chaos 

摘      要：An image encryption scheme based on confusion and diffusion is proposed. In the proposed scheme,original images are transformed into other forms, such as binary streams and ‘hyper-image , firstly. Then the confusion process is achieved by permutation on the pixel level,the binary bit level, and the ‘hyper-image level respectively. Moreover, the diffusion process is operated on the‘hyper-image level by bitwise e Xclusive or(XOR) calculation with random sequence generated by a hyper-chaotic system. Furthermore, the central dogma in molecular biology is utilized in the construction of hyper-image, which demonstrates its superiority. Both the theoretical analysis and the experimental results have demonstrated the efficiency and validity of the proposed scheme, and images can be encrypted sufficiently through the three-time permutation and the chaotic substitution.