计算机工程与应用2018，Vol.54Issue(10)：73-80,8.DOI:10.3778/j.issn.1002-8331.1703-0328
基于Bloom Filter的混合云存储安全去重方案
Secure deduplication approach based on Bloom Filter in hybrid cloud storage environments
尹勤勤1
作者信息
- 1. 广东工业大学 计算机学院,广州510006
- 折叠
摘要
Abstract
To address the problem that convergent encryption used for data deduplication is vulnerable to brute-force attack and guessing attack in existing cloud storage systems,this paper presents a secure deduplication approach based on Bloom Filter in hybrid cloud storage environments(called BFHDedup).Of the major importance is modification of the existing hybrid cloud storage system model,key server is deployed in the private cloud which supports bloom filter to authenticate users'identities to achieve fine-grained user access control.Also,this approach adds extra encryption algo-rithm based on the traditional convergent encryption algorithm to doubly encrypt data and combines file-level deduplica-tion with block-level deduplication to reach fine-grained deduplication.Moreover,a key encryption chain scheme is used to deal with the key management problem. Security analysis and simulation results show that, the proposed scheme achieves high data confidentiality,improves deduplication ratio and reduces the storage space at the expense of tolerable time overhead,which is effective against brute-force attack and guessing attack.关键词
混合云存储/数据去重/收敛加密/布隆过滤器Key words
hybrid cloud storage/data deduplication/convergent encryption/Bloom Filter分类
信息技术与安全科学引用本文复制引用
尹勤勤..基于Bloom Filter的混合云存储安全去重方案[J].计算机工程与应用,2018,54(10):73-80,8.
