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利用改进的Logistic-PWLCM映射、超混沌Chen系统所生成的改进序列和二维四值元胞自动机，设计了一种新型的对称图像加密算法.将Logistic映射和PWLCM映射复合得到新的一维混沌系统，对超混沌Chen系统所生成序列做进一步的改进，使得用于控制加密过程的密钥流序列具有更好的混沌特性.构造了一个新型的二维四值元胞自动机，对传统的二值元胞自动机做了推广，提高了元胞自动机演化的复杂性.对加密算法做了详细的性能分析，结果表明本文所提出的图像加密算法具有优良的安全性能.
Abstract：A novel symmetric image encryption algorithm based on improved Logistic-PWLCM system, improved sequences generated by hyperchaotic Chen system and 2D quaternary cellular automata is proposed. In the proposed cryptosystem, Logistic map and PWLCM map are compound into a new 1D chaotic system, and the sequences generated by hyperchaotic Chen system are improved, which make the key streams controlling the encryption process have better chaotic nature. A new 2D generalized quaternary cellular automata is constructed as well to enhance the evolution complexity greatly. A new chaotic image encryption algorithm is designed using the proposed cellular automata and two chaotic systems. Security and performance are analyzed in detail. The experimental results show that the proposed image encryption algorithm owns perfect performances.
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基本信息:
DOI：
中图分类号:TP309.7;O415.5
引用信息:
[1]叶瑞松,李泓.基于二维四值元胞自动机和混沌系统的彩色图像对称加密算法[J].汕头大学学报(自然科学版),2025,40(02):29-42.
基金信息:
广东省基础与应用基础研究基金项目（2023A1515030199）