Nowadays, users of information systems have inclination to use a central server to decrease data transferring and maintenance costs. Since such a system is not so trustworthy, users' data usually upkeeps encrypted. However, encryption is not a nostrum for security problems and cannot guarantee the data security. In other words, there are some techniques that can endanger security of encrypted d...

Database outsourcing is an idea to eliminate the burden of database management from organizations. Since data is a critical asset of organizations, preserving its privacy from outside adversary and untrusted server should be warranted. In this paper, we present a distributed scheme based on storing shares of data on different servers and separating indexes from data on a distinct server. Shamir...

The availability of a multitude data sources has naturally increased the need for subjects to collaborate distributed computations, aimed at combining different collections their elaboration and analysis. Due quick pace which collected grow, often authorities collecting owning such datasets resort external third parties (e.g., cloud providers) storage management. Data under control are autonomo...

Range query on encrypted data has been widely studied to achieve fast processing while keeping and queries secret. Prior work hides even the ordering information of data, but sacrifices accuracy (e.g., false positives) efficiency exponential complexity in domain size) as a trade-off. Moreover, hiding order alone is not sufficient prevent recent database reconstruction attacks range abusing acce...

Human genomic information can yield more effective healthcare by guiding medical decisions. Therefore, genomics research is gaining popularity as it can identify potential correlations between a disease and a certain gene, which improves the safety and efficacy of drug treatment and can also develop more effective prevention strategies [1]. To reduce the sampling error and to increase the stati...