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I agree that people should be reading the paper. Crucially, the whitepaper explains why it doesn't preserve privacy. For example, section 5.4 (design trade-off

I agree that people should be reading the paper. Crucially, the whitepaper explains why it doesn't preserve privacy. For example, section 5.4 (design trade-offs) says that individuals who have declared themselves as infected can be retroactively tracked and identified. Tracking only requires a bluetooth receiver which is aware of its own location - government agencies could easily do this.

xorfish 7y ago
Is it really worth it to track 0.1-1% of the population for a few days? I don't really see how this level of investment is worth it. I'm also not sure as to how widespread it has to be, with the 2. proposal from DP-3P, you won't be able to link EPIDs, so you would need to infer the new infected epids from the last known position. That seems only feasible if there are sensors everywhere.
sudosysgen 7y ago
Obviously. I think having your location tracked for a few days, if you are infected, is not a serious concern. In fact, there is absolutely no way I can see that can get around that.
- SlowRobotAhead 7y ago
  Where is the “few days” coming from? Once a system like this exists, you can plan on it being a feature that doesn’t disable at some point. Great intentions, but no thanks.
  - sudosysgen 7y ago
    Because the keys, from my understanding, change every day. So if someone is infected, you can only track them for the relevant days because those are the keys they would give you. You could simply set it up to delete your own keys after 14 days, for example.
    - SlowRobotAhead 7y ago
      This is obviously just all obfuscation. The entire plan is that you are uniquely identifiable, you are being pinged by every person you walk near, there is protection from Target, Bestbuy, “Ze Russians” but not Apple, Google, Gov. You can put as many crypto or “random” or key derivation layers you want in there, you just also need to admit they are surface deep and really “just for show”. This is constant person tracking, that’s the whole point.
      - joshuamorton 7y ago
        Well no, the point, as the whitepapers explain, is that there is provable cryptographic protection from Apple or Google tracking you.
- FartyMcFarter 7y ago
  I think anyone having their location tracked for a few days is a serious concern.
  - sudosysgen 7y ago
    That's already the reality of contact tracing, though.

xorfish 7y ago

Is it really worth it to track 0.1-1% of the population for a few days? I don't really see how this level of investment is worth it. I'm also not sure as to how widespread it has to be, with the 2. proposal from DP-3P, you won't be able to link EPIDs, so you would need to infer the new infected epids from the last known position. That seems only feasible if there are sensors everywhere.

sudosysgen 7y ago

Obviously. I think having your location tracked for a few days, if you are infected, is not a serious concern. In fact, there is absolutely no way I can see that can get around that.

SlowRobotAhead 7y ago
Where is the “few days” coming from? Once a system like this exists, you can plan on it being a feature that doesn’t disable at some point. Great intentions, but no thanks.
- sudosysgen 7y ago
  Because the keys, from my understanding, change every day. So if someone is infected, you can only track them for the relevant days because those are the keys they would give you. You could simply set it up to delete your own keys after 14 days, for example.
  - SlowRobotAhead 7y ago
    This is obviously just all obfuscation. The entire plan is that you are uniquely identifiable, you are being pinged by every person you walk near, there is protection from Target, Bestbuy, “Ze Russians” but not Apple, Google, Gov. You can put as many crypto or “random” or key derivation layers you want in there, you just also need to admit they are surface deep and really “just for show”. This is constant person tracking, that’s the whole point.
    - joshuamorton 7y ago
      Well no, the point, as the whitepapers explain, is that there is provable cryptographic protection from Apple or Google tracking you.
FartyMcFarter 7y ago
I think anyone having their location tracked for a few days is a serious concern.
- sudosysgen 7y ago
  That's already the reality of contact tracing, though.