福建电脑2025，Vol.41Issue(9)：7-10,4.DOI:10.16707/j.cnki.fjpc.2025.09.002
复合混沌映射的数字图像加密算法研究
Research on Digital Image Encryption Algorithm of Composite Chaotic Map
摘要
Abstract
This paper proposes an image encryption algorithm based on composite chaotic mapping to address the security issues of digital images during transmission and storage.In response to the limitations of limited key space and high pixel correlation in a single chaotic mapping,a composite chaotic system with stronger random characteristics was constructed by organically combining Logistic mapping and Tent mapping.The experimental results show that the encryption speed of this algorithm is 0.05 seconds,the decryption speed is 0.04 seconds,the information entropy is 7.9988,and the histogram pixels of the encrypted image are approximately uniformly distributed on the 0-255 gray level,providing a new solution for digital image security protection.关键词
混沌系统/复合混沌映射/图像加密/信息安全Key words
Chaotic System/Composite Chaotic Mapping/Image Encryption/Information Security分类
信息技术与安全科学引用本文复制引用
郭华峰..复合混沌映射的数字图像加密算法研究[J].福建电脑,2025,41(9):7-10,4.基金项目
本文得到温州市基础性科研项目"基于混沌系统的图像加密算法研究"(No.S2023052)、浙江工贸职业技术学院教师科技创新活动计划项目(No.ZG220201)资助. （No.S2023052）
