Spycrowsoft

> **9. If we use bluetooth, what do we do with our infected neighbour?** > > If you indicate your 'home' location, an app can, without transmitting your actual GPS...

Is this applicable against hashes that have been salted (it looks like salting if you squint a little) and used in a TOTP/HMAC fashion like A/G do? (see: https://covid19-static.cdn-apple.com/applications/covid19/current/static/contact-tracing/pdf/ContactTracing-CryptographySpecification.pdf) To...

> I think you can only give a `List of Diagnosis_Keys` Exactly. > Providing these `List of Diagnosis_Keys` can be done with signed content on a web CDN right? Yes....

> I assumed `X = 14 days`. The reasonable upper bound we can expect for x is 46 days. That apparently has been the longest duration of the disease, including...

> That's why the DK used for diagnoses must be validated against the backend I've stated in my long post above, why this might be a problem, as a guess...

> If I follow your worst case of 46 days, are we requesting DTK -46 to 0? No. The point is that this interval can be variable and has to...

> I'll open a new issue with those calculations in the near future. See: https://github.com/ahupowerdns/covid-backend/issues/10

> So in theory, we could recieve any random number of dtks from a user if they choose to specify so. > By the way: we have to guard against...

> It's way more efficient to partition by the day number. Since the amount of day numbers are limited, e.g. 14, you can provide 14 append only logs, and you...

> I use 14 as X, I was not my purpose to repeat that discussion. The point about partitioning stays the same. Noted. > It's a easy optimization that will...