The database community, at least for the last decade, has been grappling with querying encrypted data, which would enable secure database as a service solutions. A recent breakthrough in the cryptographic community (in 2009) related to fully homomorphic encryption (FHE) showed that arbitrary computation on encrypted data is possible. Successful adoption of FHE for query processing is, however, ...

For the last few years, a extensive research has been going on query processing of relation data and more practical and theoretical solution have been suggested to query processing under different scenarios. Now days cloud computing technology is increasing rapidly, so users now have the chance to store their data in remote location. However, different privacy issues are raised on cloud computi...

In cloud computing, secure analysis on outsourced encrypted data is a significant topic. As a frequently used query for online applications, secure k-nearest neighbours (k-NN) computation on encrypted cloud data has received much attention, and several solutions for it have been put forward. However, most existing schemes assume the query users are fully trusted and all query users know the ent...

In the era of cloud computing, to achieve convenient location-based service (LBS), consumers such as users, companies, and organizations prefer subcontracting massive geographical data public clouds after encryption for privacy security. However, numerous harmful cyber-attacks happen on those in an unpredicted hourly manner. To alleviate concerns, various secure query schemes encrypted have bee...