A Novel Architecture of multi-keyword ranked search over encrypted cloud data supporting synonym queries

Abstract

As an enhancement we enhance the existing system and in this paper we propose an effective approach to solve the problem of multi-keyword ranked search over encrypted cloud data supporting synonym queries. The main contribution of this paper is summarized in two aspects: multi-keyword ranked search to achieve more accurate search results and synonym-based search to support synonym queries. Meanwhile, existing search approaches over encrypted cloud data support only exact or fuzzy keyword search, but not semantics-based multi-keyword ranked search. Therefore, how to enable an effective searchable system with support of ranked search remains a very challenging problem.
Index Terms—Cloud computing; searchable encryption; privacy-preserving; keyword search; ranked search