Smile+: An efficient privacy preserving missed-connection service in iov networks

Abstract

Drivers in IoV are connected to social networks all the time and can make use of Missed-Connection Services. It provides its users with the possibility to meet strangers who were at the same place and time and allows them to contact each other at a later time. In traditional missed-connection services, the centralized server stores all information and in a scenario, where the server is untrusted, the sensitive information is in danger. We propose SMILE+, a two-phase algorithm that ensures privacy by still being protected. We also perform a privacy analysis of our approach in respect to (1) location privacy, (2) encounter privacy and (3) extra messages to show that we could make an improvement to the existing approach.