基于超混沌系统的三维网格模型几何保留加密算法  

Hyperchaotic system based geometry-preserving encryption algorithm for 3D mesh model

作　　者：李红岩[1,2] 王玉惠[3] LI Hongyan;WANG Yuhui(Institute of Computing and Software,Nanjing College of Information Technology,Nanjing 210023,China;Department of Computer Science and Technology,Nanjing University,Nanjing 210023,China;College of Automation Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China)

机构地区：[1]南京信息职业技术学院计算机与软件学院,江苏南京210023 [2]南京大学计算机科学与技术系,江苏南京210023 [3]南京航空航天大学自动化学院,江苏南京210016

出　　处：《现代电子技术》2018年第7期90-92,96,共4页Modern Electronics Technique

基　　金：南京信息职业技术学院自然科研基金项目(青年教师专项重点)(YK20170401);国家自然科学基金资助项目(61272291);国家自然科学基金资助项目(61100110);国家自然科学基金资助项目(61021062)~~

摘　　要：提出一种基于内容的三维网格模型的加密算法。加密过程将三维网格模型根据超混沌映射分别对网格面片构成置乱和网格顶点坐标扰动,从而获得加密后的三维网格模型;解密过程则利用密钥作为初始值生成超混沌系统,对网格顶点坐标和面片构成进行逆向恢复,从而获得解密后的三维网格模型。所提的加密和解密形式灵活,加密后的模型亦可渲染显示,且抗破译能力强,可对广泛应用于影视动画、艺术设计、工业设计以及医学设计等不同领域的三维网格模型进行保护。An encryption algorithm based on content is proposed for three-dimensional(3D)mesh model.In the encryption process,the mesh facets component is scrambled and the mesh peak coordinate is disturbed for the3D mesh model according to the hyperchaotic mapping,so as to obtain the encrypted3D mesh model.In the decryption process,the hyperchaotic system is generated by taking the key as the initial value to reversely recover the mesh peak coordinate and mesh facets composition,so as to obtain the decrypted3D mesh model.The forms of encryption and decryption are flexible.The encrypted model can realize the rendering display,has high decryption resistance ability,and is used widely for3D mesh model protection in the fields of film and animation,artistic design,industrial design and medical design.

关 键 词：超混沌 几何保留加密 三维 网格模型 解密 抗破译 

分 类 号：TN711-34[电子电信—电路与系统] TP391[自动化与计算机技术—计算机应用技术]