Improved phrase search construction over encrypted data in cloud storage. (2017)

• Record Type: Journal Article
• Authors: Kong, Fanyu; Wang, Jie; Yu, Jia; Wang, Xu An
• Is Part Of: International journal of innovative computing and applications. Volume 8:Number 1(2017)
• Page Start: 3
• Page End: 11
• Publication Date: 2017
• Subjects: cloud storage -- big data -- searchable symmetric encryption -- SSE -- phrase search -- encrypted data -- cloud computing -- cloud security -- data privacy -- privacy protection -- privacy preservation -- cryptography; Evolutionary computation -- Periodicals; Neural networks (Computer science) -- Periodicals; Genetic programming (Computer science) -- Periodicals; Biologically-inspired computing -- Periodicals; Swarm intelligence -- Periodicals; Quantum computers -- Periodicals; 006.3
• Languages: English
• ISSNs: 1751-648X

Abstract

Searchable encryption schemes are important security techniques for guaranteeing cloud customers' data privacy in cloud storage outsourcing service. Kissel proposed a verifiable single-phase phrase search scheme using symmetric encryption algorithms, which was proved non-adaptively secure in the semi-honest-but-curious (SHBC) model. We present a security analysis of Kissel's scheme and show that the cloud service provider can obtain some new phrases' trapdoors and search outcomes based on the client's a phrase query. We propose an improvement to simplify Kissel's scheme and enhance its security. Finally, we give a security analysis and efficiency analysis of the improved phrase search scheme on encrypted data. The analysis shows that our improved scheme is proved non-adaptively secure and has better efficiency.