There is surprisingly little discussion about the actual spec here. It looks really good to me!
- Advertisements change every 15 minutes, are not trackable unless keys are shared.
- The only central bit is a repository of "infected" daily keys.
- No knowledge about contacts is shared with a central authority.
Nothing is shared unless you are infected and decide to share your keys, which are only valid for one day. I don't see how you could have a real argument against this unless you are a privacy extremist. It also seems more privacy friendly than the Singapore or German apps.
- Advertisements change every 15 minutes, are not trackable unless keys are shared.
- The only central bit is a repository of "infected" daily keys.
- No knowledge about contacts is shared with a central authority.
Nothing is shared unless you are infected and decide to share your keys, which are only valid for one day. I don't see how you could have a real argument against this unless you are a privacy extremist. It also seems more privacy friendly than the Singapore or German apps.