A demonstration of Covid-Watch's Bluetooth contact tracing. When two users are in proximity, they connect and generate a random number together.
Covid-Watch's website states that "Covid Watch aims to empower people to protect their communities from COVID-19 without sacrificing their personal privacy. Our app uses Bluetooth signals to detect when users are in proximity to each other and alerts them anonymously if they were in contact with someone later confirmed to have COVID-19, without anyone (including the government) being able to track who exposed whom. We were among the first groups to release an open-source protocol for privacy-preserving, decentralized Bluetooth contact tracing, and have been collaborating with MIT’s SafePaths and CoEpi to make this protocol a standard across apps and jurisdictions. We are aiming to release the full app by mid-April".
Covid Watch is a non-profit group of researchers, programmers security experts and public health professionals. It is led by researchers from Stanford University and the University of Waterloo. https://covid-watch.org/#