A Secure and Dynamic Fuzzy Multi-Keyword Ranked Search over Encrypted Cloud Data Without Access Pattern Leakage

Abstract

Recent years, Searchable Encryption (SE) has become one of the hottest topics in cloud computing, because of its flexibility and availability. Most of existing SE schemes focus on the improvement of its efficiency, accuracy, and availability. However, the majority of them leak data access patterns due to their schemes constructions. In this paper, we present a secure symmetric searchable encryption scheme without access pattern leakage, based on Fu’s scheme. By constructing two cloud servers to replace the original server, our scheme protects data users from access pattern leakage.