基于Spark和整数混沌的彩图拉格朗日加密分存方案  

Lagrange encrypted storage scheme for color maps based on Spark and integer chaos

作　　者：陈飞[1,2] 刘建东[1] 胡辉辉[1,2] 刘博 张世博[1] CHEN Fei;LIU Jian-dong;HU Hui-hui;LIU Bo;ZHANG Shi-bo(School of Information Engineering,Beijing Institute of Petrochemical Technology,Beijing 102617,China;School of Information Science and Technology,Beijing University of Chemical Technology,Beijing 100029,China)

机构地区：[1]北京石油化工学院信息工程学院,北京102617 [2]北京化工大学信息科学与技术学院,北京100029

出　　处：《计算机工程与设计》2020年第4期901-907,共7页Computer Engineering and Design

基　　金：北京市教委面上基金项目(KM201810017005)。

摘　　要：针对图像加密分存算法安全性差及效率低的问题,结合二维整数耦合帐篷映射、拉格朗日插值公式和Spark并行框架,设计一种彩色图像并行加密分存方案。对分存ID进行分块,利用各个分存ID产生二维整数耦合帐篷映射的初始值,产生加密序列对图像进行加密。实验结果表明,该方案密码学特性良好,在基于Spark框架的11个核集群中加密分存时间减小了88%。To solve the problem of poor security and low efficiency of image encryption and storage algorithm,two-dimensional integer coupling tent mapping,Lagrangian interpolation formula and Spark parallel framework were combined to design a color image parallel encryption sharing scheme.The image was separately allocated by dividing the shared ID.In the encryption phase,an initial value of the two-dimensional integer coupled tent map was generated by using each of the shared IDs,thereby generating an encrypted sequence and encrypting the image.The experimental results show that the cryptographic characteristics of the scheme are good,and the encryption and storage time is reduced by 88%in 11 clusters based on the Spark framework.

关 键 词：二维整数耦合帐篷映射 拉格朗日插值 Spark框架 安全性 效率 

分 类 号：TP309.7[自动化与计算机技术—计算机系统结构]