The Privacy Preservation Mechanism for Database as a Service

Database as a Service (DBaaS) is becoming a research hotspot of cloud computing, as a main application domain of DBaaS, business database application hosting put forward the requirements of isolation and privacy preservation on hosting data. To satisfy this requirement, this paper proposes a database hosting method based on virtual machine and CryptDB. This system storages the hosting data with encrypted format and can execute SQL queries based on encrypted data. Compared with fully homomorphic encryption system, the performance of the system has lower loss, and better solve the issue of privacy protection.