南华大学学报（自然科学版）2026，Vol.40Issue(1)：64-73,80,11.DOI:10.19431/j.cnki.1673-0062.2026.01.009
基于二维D-peak超混沌映射与动态DNA编码的图像加密算法研究
Research on image encryption algorithm based on 2D D-Peak hyperchaotic map and dynamic DNA encoding
摘要
Abstract
This study proposes a novel two-dimensional coupled map model,and its hyper-chaotic characteristics are verified using methods such as Lyapunov exponent spectrum,bi-furcation diagram,attractor in the phase space,sample entropy(SE),and 0-1 test.Based on this model,a pixel matrix hierarchical rotation scrambling algorithm and a dy-namic DNA encoding diffusion algorithm are proposed.The image encryption scheme is constructed via a hybrid approach incorporating two-dimensional spatial scrambling and full-bit diffusion.Through comprehensive simulation tests—including key space analysis,sensitivity testing,histogram and pixel correlation analyses,as well as cropping and noise attacks—this study demonstrates that the encryption scheme achieves a large key space,excellent key sensitivity,and strong robustness.关键词
混沌系统/图像加密/旋转置乱/DNA编码Key words
chaos system/image encryption/rotation scrambling/DNA encode分类
信息技术与安全科学引用本文复制引用
邱威,李震波..基于二维D-peak超混沌映射与动态DNA编码的图像加密算法研究[J].南华大学学报（自然科学版）,2026,40(1):64-73,80,11.基金项目
湖南省教育厅优秀青年基金资助项目(21B0419) （21B0419）
