云存储抗边信道攻击的密文数据去重算法  

A Ciphertext Data Deduplication Algorithm for Cloud Storage Anti Edge Channel Attacks

作　　者：吴玲红[1] 王葵[1] 刘捷 WU Ling-hong;WANG Kui;LIU Jie(School of Computer Information Engineering,Nanchang Institute of Technology,Jiangxi Nanchang 330044,China;School of Software,Nanchang University,Jiangxi Nanchang 330044,China)

机构地区：[1]南昌理工学院计算机信息工程学院,江西南昌330044 [2]南昌大学软件学院,江西南昌330044

出　　处：《计算机仿真》2024年第9期412-415,445,共5页Computer Simulation

摘　　要：考虑云储存中密文数据相似性较高,导致去重难度过大的问题,提出一种基于执行机构的密文数据去重算法。构建密文动态平衡跳跃表,根据对动态平衡跳跃表的构建与描述,得到抗边信道攻击的密文数据动态叠加特点。基于密文动态平衡跳跃表构建与更新结果,提出一种抗边信道攻击的数据去重框架,云储存提供商执行数据加密、数据标签查询以及数据去重三个过程。云端储存使用标签代表数据查询操作,一旦查询计数超过阈值,执行数据加密程序对该文件进行加密,并按照云储存服务商提供的执行命令对重叠密文进行去重。实验结果证明,所提方法对密文数据去重效果表现较佳,去重后云储存空间占用情况得到了明显改善。Considering the high similarity of ciphertext data in cloud storage,which leads to significant difficulty in deduplication,a ciphertext data deduplication algorithm based on execution mechanism is proposed.Construct a ciphertext dynamic balance jump table,and based on the construction and description of the dynamic balance jump table,obtain the dynamic superposition characteristics of ciphertext data that resist edge channel attacks.A data deduplication framework against edge channel attacks is proposed based on the construction and update results of a ciphertext dynamic balanced jump table.The cloud storage provider performs three processes:data encryption,data label query,and data deduplication.Cloud storage uses tags to represent data query operations.Once the query count exceeds the threshold,the data encryption program is executed to encrypt the file,and the overlapping ciphertext is deduplicated according to the execution command provided by the cloud storage service provider.The experimental results demonstrate that the proposed method performs well in deduplication of ciphertext data,and the cloud storage space occupancy is significantly improved after deduplication.

关 键 词：抗边信道攻击 云存储 密文数据去重 动态平衡跳跃表 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]