According to the creators, the Decentralised Privacy-Preserving Proximity Tracing (DP-3T) project is “an open protocol for COVID-19 proximity tracing using Bluetooth Low Energy functionality on mobile devices that ensures personal data and computation stays entirely on an individual’s phone.”
Artist Nicky Case (with help from Prof Carmelo Troncoso & Prof Marcel Salathé) created a comic to explain how the protocol works:
You can see the long version here.
Updates:
- Apple and Google have released a joint specification describing their system support for privacy-preserving proximity tracing on iOS and Android . Their proposal is very similar to DP-T3’s early proposal named “Low-cost decentralized proximity tracing”.