密文域可逆信息隐藏研究进展及评述  

Research Progress and Review on Reversible Information Hiding in Encrypted Domain

作　　者：易爽 周娟 YI Shuang;ZHOU Juan(Engineering Research Center of Forensic Science,Chongqing Education Committee;Criminal Investigation School,Southwest University of Political Science and Law,Chongqing 401120,China)

机构地区：[1]物证技术重庆市高校工程研究中心,重庆401120 [2]西南政法大学刑事侦查学院,重庆401120

出　　处：《中国人民公安大学学报（自然科学版）》2021年第2期40-46,共7页Journal of People’s Public Security University of China(Science and Technology)

基　　金：国家自然科学基金青年项目(62002301);重庆市科委基础研究与前沿探索项目(重庆市自然科学基金)(cstc2019jcyj-msxmX0393,cstc2018jscx-msybX0115)。

摘　　要：随着云计算的兴起和云存储的广泛应用,原本在本地PC或手机端存储、编辑、处理数字图像的模式逐渐变为由云计算平台提供服务和支持的模式,由此衍生出数据存储的安全问题。加密技术使得用户的图像数据不被窥视,信息隐藏技术则方便密文数据的存储和管理,两者的有机结合,即密文域的信息隐藏,成为了解决云服务安全隐患的重要技术和研究热点。首先,对密文域的信息隐藏相关研究进行技术分析,对不同架构下的代表性算法进行技术分析,并指出其优点和局限性。最后,结合现有的研究现状和评价体系,提出几点改进意见和提升方向。With the rise of cloud computing and the extensive application of cloud storage,the mode of storing,editing and processing digital images on a local PC or mobile phone has gradually changed to a mode of providing services and support by cloud computing platforms,thus giving rise to the security problem of data storage.Encryption technology prevents users'image data from being peeped,while information hiding technology facilitates the storage and management of encrypted data.The organic combination of the two,namely encrypted domain-based information hiding,has become an important technology and research hotspot to solve the security risks of cloud services.This paper makes a technical analysis on the research of information hiding in the encrypted domain,and reviews the representative algorithms under different architectures,and points out their advantages and limitations.Finally,combining with the current research status and evaluation mechanism,some suggestions and directions for improvement are put forward.

关 键 词：可逆信息隐藏 密文域 加密 安全 云服务 

分 类 号：TP393.08[自动化与计算机技术—计算机应用技术]