Title
Digital Contact Tracing Solutions: Promises, Pitfalls and Challenges.
Abstract
The COVID-19 pandemic has caused many countries to deploy novel digital contact tracing (DCT) systems to boost the efficiency of manual tracing of infection chains. In this paper, we systematically analyze DCT solutions and categorize them based on their design approaches and architectures. We analyze them with regard to effectiveness, security, privacy, and ethical aspects and compare prominent solutions with regard to these requirements. In particular, we discuss the shortcomings of the Google and Apple Exposure Notification API (GAEN) that is currently widely adopted all over the world. We find that the security and privacy of GAEN have considerable deficiencies as it can be compromised by severe, large-scale attacks. We also discuss other proposed approaches for contact tracing, including our proposal TRACECORONA, that are based on Diffie-Hellman (DH) key exchange and aim at tackling shortcomings of existing solutions. Our extensive analysis shows thatTRACECORONA fulfills the above security requirements better than deployed state-of-the-art approaches. We have implementedTRACECORONA, and its beta test version has been used by more than 2000 users without any major functional problems, demonstrating that there are no technical reasons requiring to make compromises with regard to the requirements of DCTapproaches.
Year
Venue
DocType
2022
IACR Cryptology ePrint Archive
Journal
Volume
Citations 
PageRank 
2022
0
0.34
References 
Authors
0
5
Name
Order
Citations
PageRank
Thien Duc Nguyen1314.11
Markus Miettinen225217.65
Alexandra Dmitrienko301.01
Ahmad-reza Sadeghi45463334.69
Ivan Visconti561240.30