关键词: 云存储, 隐私, 安全, 排行搜索, 第三方审计

Abstract: With rapid development of cloud computing, security and privacy preservation of cloud storage are now attracting much more attention. In the cloud, data is always encrypted to preserve user privacy, which makes it difficult to retrieve data from the cloud. To solve the problem that using keywords to retrieve encrypted files, a privacy-preserving secure cloud storage system should be proposed. Hence this paper presents a dynamic fuzzy top-k ranking search scheme based on MRSE, as well as using TF-IDF to evaluate file correlation. Moreover, Third Party Auditing is involved in the system to verify file integrality and manage keys.

Key words: cloud storage, privacy, security, ranked search, third party auditing