Survey on secure search over encrypted data on the cloud

摘要

Cloud computing has become a potential resource for businesses and individuals to outsourcetheir data to remote but highly accessible servers. However, the potential of cloud serviceshas not been fully realized due to users concerns about data privacy and security. User-sideencryption techniques can be employed to mitigate the security concerns, but once the data isencrypted, no processing (eg, searching) can be performed on the outsourced data. SearchableEncryption (SE) techniques have been widely studied to enable searching on the data while theyare encrypted. These techniques enable various types of search on the encrypted data and offerdifferent levels of security. While these techniques enable different search types and vary indetails, they share similarities in their components and architectures. In this paper, we provide acomprehensive survey on different secure search techniques, a high-level architecture for thesesystems, and an analysis of their performance and security level.