Decentralized Privacy-Preserving Proximity Tracing

Understand

This document describes and analyzes a system for secure and privacy-preserving proximity tracing at large scale.

• This system, referred to as DP3T, provides a technological foundation to help slow the spread of SARS-CoV-2 by simplifying and accelerating the process of notifying people who might have been exposed to the virus so that they can take appropriate measures to break its transmission chain.
• The system aims to minimise privacy and security risks for individuals and communities and guarantee the highest level of data protection.
• The goal of our proximity tracing system is to determine who has been in close physical proximity to a COVID-19 positive person and thus exposed to the virus, without revealing the contact's identity or where the contact occurred.