Enabling Dynamic Multi-Client and Boolean Query in Searchable Symmetric Encryption Scheme for Cloud Storage System

• Wanshan Xu,
• Jianbiao Zhang,
• Yilin Yuan,

Vol. 16, No. 4, April 30, 2022
10.3837/tiis.2022.04.011, Download Paper (Free):

• searchable symmetric encryption
• multi-client
• Boolean query
• attribute-based encryption
• Cloud Storage

Abstract

Searchable symmetric encryption (SSE) provides a safe and effective solution for retrieving encrypted data on cloud servers. However, the existing SSE schemes mainly focus on single keyword search in single client, which is inefficient for multiple keywords and cannot meet the needs for multiple clients. Considering the above drawbacks, we propose a scheme enabling dynamic multi-client and Boolean query in searchable symmetric encryption for cloud storage system (DMC-SSE). DMC-SSE realizes the fine-grained access control of multi-client in SSE by attribute-based encryption (ABE) and novel access control list (ACL), and supports Boolean query of multiple keywords. In addition, DMC-SSE realizes the full dynamic update of client and file. Compared with the existing multi-client schemes, our scheme has the following advantages: 1) Dynamic. DMC-SSE not only supports the dynamic addition or deletion of multiple clients, but also realizes the dynamic update of files. 2) Non-interactivity. After being authorized, the client can query keywords without the help of the data owner and the data owner can dynamically update client’s permissions without requiring the client to stay online. At last, the security analysis and experiments results demonstrate that our scheme is safe and efficient.

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