IRDP Ride System: A Privacy Preservation System for Online Ride-Hailing

Online ride-hailing and navigation (ORHN) is a significant application in location-based services (LBSs). With this application, users can get convenient services in daily travel. However, during the process of ORHN, the user has to confront the violation of personal privacy (such as the initial point, the destination, and the moving path) from the taxi driver or the ride-hailing sharer. Therefore, in order to cope with the problem of privacy violation, in this article, an initial, route, and destination preservation ride system (short for IRDP Ride system) is proposed. In the IRDP Ride system, the initial point, the destination, and the route can be preserved during the process of ORHN, no matter whether the adversary (such as the un-trusted driver or sharer) utilizes the analysis method in the same car (such as the range attack or the segment direction attack). In this article, before elaborating on the IRDP Ride system, two types of methods used for analyzing the initial point and destination were given. Then based on the characteristics of Voronoi and the navigation deviation, three algorithms used in this system for providing privacy preservation service are proposed. In the last part of this article, the IRDP Ride system’s security and stability are discussed from the theoretical analysis. At the same time, this system is also verified with several groups of experiments in the real environment to determine the optimization parameters, and then this system is also compared with other similar systems to demonstrate its superiority.