Towards Defeating Mass Surveillance and SARS-CoV-2: The Pronto-C2 Fully Decentralized Automatic Contact Tracing System
Gennaro Avitabile, Vincenzo Botta, Vincenzo Iovino, Ivan Visconti
Abstract
Automatic contact tracing is currently used in several countries in order to limit the spread of SARS-CoV-2. \nMany governments decided to develop smartphone apps based \non the “Exposure Notifications” designed by Apple and Google \naccording to a decentralized approach previously proposed by \nthe DP-3T team. Decentralization was pushed as a key feature to \nprotect privacy in contrast to centralized approaches that could \nleverage automatic contact tracing to realize mass-surveillance \nprograms. \nIn this work, taking into account the privacy and integrity \nvulnerabilities of DP-3T systems, we show the design of a decentralized contact tracing system named Pronto-C2 that has better \nresilience against various attacks. We also discuss the significant \noverhead of Pronto-C2 when used in real-world scenarios.