现代电子技术2017，Vol.40Issue(9)：96-98,103,4.DOI:10.16652/j.issn.1004-373x.2017.09.026
动态数据安全审计云存储系统研究
Research on cloud storage system for dynamic data safety audit
刘璐玲1
作者信息
- 1. 武汉工程大学 邮电与信息工程学院,湖北 武汉 430073
- 折叠
摘要
Abstract
A provable data possession scheme supporting data deduplication is proposed. The scheme has improved the se-curity issue that the MD5 value in the original data deduplication is used to falsely claim the use right of the original data. A trusted third party is introduced into the scheme to manage the verification secret key of different documents to avoid the repeated calculation of the file label. The additional local storage is adopted to reduce the time consumption and communication cost. For the file-level cloud storage,a dynamic provable data possession scheme based on index was designed. According to the influence of the file I/O existing in the previous schemes on verification time,the B+ tree multi-level index is used to perform the query op-timization for the file. The experimental results show that,in comparison with the traditional schemes,the proposed scheme has reduced the storage cost for data deduplication greatly,and lowered the time complexity of the file-level update operation.关键词
数据持有性证明/数据去重/云存储/索引Key words
provable data possession/data deduplication/cloud storage/index分类
信息技术与安全科学引用本文复制引用
刘璐玲..动态数据安全审计云存储系统研究[J].现代电子技术,2017,40(9):96-98,103,4.
