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A new color image encryption scheme based on DNA encoding and spatiotemporal chaotic system
Affiliation:1. Key Laboratory of Big Data Analysis and Processing, School of Computer and Information Engineering, Henan University, Kaifeng 475004, China;2. School of Software, Henan University, Kaifeng 475004, China;3. Research Department, Henan University, Kaifeng 475004, China;4. Department of Electrical and Computer Engineering, Duke University, Durham, NC 27708, United States;1. School of Electronic and Information Engineering, Lanzhou Jiaotong University, Lanzhou, 730070, China;2. School of Information Science and Technology, Dalian Maritime University, Dalian, 116026, China;3. Faculty of Electronic Information and Electrical Engineering, Dalian University of Technology, Dalian, 116024, China;4. Software Technology Institute, Dalian Jiaotong University, Dalian 116028, China;1. School of Artificial Intelligence, Henan University, Kaifeng 475004, China;2. School of Computer and Information Engineering, Henan Key Laboratory of Big Data Analysis and Processing, Henan University, Kaifeng 475004, China;3. School of Software, Intelligent Data Processing Engineering Research Center of Henan Province, Institute of Intelligent Network System, Henan University, Kaifeng 475004, China;4. College of Computer Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China;5. Guangxi Key Lab oratory of Trusted Software, Guilin University of Electronic Technology, Guilin 541004, China;6. Department of Electrical and Computer Engineering, Duke University, Durham, NC 27708, USA
Abstract:In this paper, a new color image encryption scheme based on DNA operations and spatiotemporal chaotic system is presented. Firstly, to hide the distribution information of the plain image, we convert the plain image into three DNA matrices based on the DNA random encoding rules. Then, the DNA matrices are combined into a new matrix and is permutated by a scramble matrix generated by mixed linear-nonlinear coupled map lattices (MLNCML) system. In which, the key streams are associated with the secret keys and plain image, which can ensure our cryptosystem plain-image-dependent and improve the ability to resist known-plaintext or chosen-plaintext attacks. Thereafter, to resist statistical attacks, the scrambled matrix is decomposed into three matrices and diffused by DNA deletion-insertion operations. Finally, the three matrices are decoded based on DNA random decoding rules and recombined to three channels of the cipher image. Simulation results demonstrate that the proposed image cryptosystem has good security and can resist various potential attacks.
Keywords:Color image encryption  DNA  Chaotic map  MLNCML system
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