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11 Apr 2020 : How the privacy-preserving contact tracing actually works #
This privacy-preserving contact tracing specification Google and Apple released yesterday is particularly interesting to me, given it seems quite easy to understand and could be relatively straightforward to implement. However, while the companies provided a high-level overview alongside the technical specs, there's nothing that seems to capture the middle-ground between them. Here's my attempt to explain how the system works underneath, but in an easy-to-digest 10 minute read.