首页|Two-dimensional-lag complex logistic map with complex parameters and its encryption application

Two-dimensional-lag complex logistic map with complex parameters and its encryption application

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With the rapid development of internet technology,security protection of information has become more and more prominent,especially information encryption.Considering the great advantages of chaotic encryption,we propose a 2D-lag complex logistic map with complex parameters(2D-LCLMCP)and corresponding encryption schemes.Firstly,we present the model of the 2D-LCLMCP and analyze its chaotic properties and system stability through fixed points,Lyapunov exponent,bifurcation diagram,phase diagram,etc.Secondly,a block cipher algorithm based on the 2D-LCLMCP is proposed,the plaintext data is preprocessed using a pseudorandom sequence generated by the 2D-LCLMCP.Based on the generalized Feistel cipher structure,a round function F is constructed using dynamic S-box and DNA encoding rules as the core of the block cipher algorithm.The generalized Feistel cipher structure consists of two F functions,four XOR operations,and one permutation operation per round.The symmetric dynamic round keys that change with the plaintext are generated by the 2D-LCLMCP.Finally,experimental simulation and performance analysis tests are conducted.The results show that the block cipher algorithm has low complexit,good diffusion and a large key space.When the block length is 64 bits,only six rounds of encryption are required to provide sufficient security and robustness against cryptographic attacks.

logistic mapblock cipherschaotic systemencryption

张芳芳、武金波、寇磊、马凤英、吴黎明、张雪

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School of Information and Automation Engineering,Qilu University of Technology(Shandong Academy of Sciences),Jinan 250353,China

Institute of Oceanographic Instrumentation,Qilu University of Technology(Shandong Academy of Sciences),Qingdao 266000,China

山东省自然科学基金山东省自然科学基金山东省自然科学基金Industry-University-Research Collaborative Innovation Fund Project of Qilu University of Technology(Shandong Academy of ScieIndustry-University-Research Collaborative Innovation Fund Project of Qilu University of Technology(Shandong Academy of ScieMajor scientific and technological innovation projects of Shandong ProvinceTalent Research Project of Qilu University of Technology(Shandong Academy of sciences)Basic Research Projects of Science,Education and Industry Integration Pilot Project of Qilu University of Technology(Shandon

ZR2023MF089R2023QF036ZR2021MF0732021CXY-132021CXY-142020CXGC0109012023RCKY0542023PX081

2024

10.1088/1674-1056/ad2a69

中国物理B(英文版)
中国物理学会和中国科学院物理研究所

中国物理B(英文版)

CSTPCDEI
影响因子：0.995
ISSN：1674-1056
年,卷(期)：2024.33(5)
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