An image encryption algorithm based on hyperchaotic system and DNA coding

作     者：Wang, Xingyuan Zhao, Maochang 

作者机构：Dalian Maritime Univ Sch Informat Sci & Technol Dalian 116026 Peoples R China 

出 版 物：《OPTICS AND LASER TECHNOLOGY》 (光学与激光技术)

年 卷 期：2021年第143卷

页      面：107316-107316页

核心收录：

学科分类：070207[理学-光学] 07[理学] 08[工学] 0803[工学-光学工程] 0702[理学-物理学] 

基　　金：National Natural Science Foundation of China Password Theory Project of the 13th Five-Year Plan National Cryptography Development Fund [MMJJ20170203] Liaoning Province Science and Technology Innovation Leading Talents Program Project [XLYC1802013] Key R&D Projects of Liaoning Province [2019020105JH2/103] Jinan City '20 universities' Funding Projects Introducing Innovation Team Program [2019GXRC031] 

主　　题：Image encryption DNA coding Chaotic sequence Block scrambling 

摘      要：A chaotic image encryption scheme combining block scrambling and DNA coding is proposed. The chaotic sequences generated by Chen hyperchaotic system are used for inter-block index scrambling and intra-block FisherYates scrambling. Then the index sequence is used to further scramble the image to further enhance the encryption effect. The pixel value of the image is initially changed by chaotic sequence, and diffused by different DNA coding rules and different operation rules corresponding to chaotic sequence. After decoding the DNA matrix, the final encrypted image is obtained. The initial values and parameters of the chaotic system are generated by SHA-512 hash function and plaintext image. The experimental results and various security analysis show that the algorithm has good encryption effect and can resist common attacks such as chosen-plaintext attacks, clipping attacks and noise attacks.