The current spread of the Internet across an ever-increasing number devices, including mobile and IoT has created enormous flow data [...]

In a private information retrieval (PIR) system, the user needs to retrieve one of possible messages from set storage servers, but wishes keep identity requested message any given server. Existing efforts in this area have made it clear that efficiency will be impacted significantly by amount space allowed at servers. work, we consider tradeoff between cost and cost. We first present three fund...