General > General Technical Chat
Working From Home - Impacts of Coronavirus
nctnico:
--- Quote from: floobydust on April 26, 2020, 09:29:28 pm ---
--- Quote from: nctnico on April 26, 2020, 08:46:43 pm ---
--- Quote from: floobydust on April 26, 2020, 08:18:37 pm ---I understand this as Bluetooth tracking compared with GPS tracking. Converting a Bluetooth UUID to an actual person's ID or phone number requires access to private information and your contact list, and who trusts these cheezy app developers to not harvest it all and sell it to third parties ala zuckerburg style and claim it was a hack.
--- End quote ---
But Corona tracking apps don't work that way. The Bluetooth ID gets hashed (which means converted to a unique fingerprint which cannot be traced back to the original; see SHA256 for example). On your phone you'll have a list with those fingerprints for a couple of weeks. A central server receives messages from phones of which the user says he/she is infected and you get a message saying a fingerprint is infected.
In short: there is no absolute location tracking involved and no personal c.q. traceable information is shared. Also many Corona tracking apps are open source so anyone can see how it works. As bd139 wrote: you should really do some investigation into how Corona tracking apps actually work instead of writing utter nonsense.
--- End quote ---
How does the hashed Bluetooth ID or beacon get resolved back to the original person for notification?
--- End quote ---
That is not necessary. Your phone can query a server for infected hashes and if one of these hashes matches your list with contacted hashes then you where near an infected person.
--- Quote from: Someone on April 26, 2020, 10:47:58 pm ---c) Users decide if/when they announce they were infected, and upload the history of their recent identifiers to a central store (could be region/locale specific). Other users periodically pull the official list of confirmed identifiers and check if they have recoded contacts in their local data. This relies on the users deciding on what they want to do with the information, some people might not announce they were infected, and others might take no action even if they had a contact match.
--- End quote ---
Probably. But the less people use a tracking app properly, the more strict lock-down measures are needed. So in the end it depends on the people whether they prefer their freedom or prefer acting like a kid.
SiliconWizard:
--- Quote from: nctnico on April 26, 2020, 11:24:13 pm ---
--- Quote from: floobydust on April 26, 2020, 09:29:28 pm ---
--- Quote from: nctnico on April 26, 2020, 08:46:43 pm ---
--- Quote from: floobydust on April 26, 2020, 08:18:37 pm ---I understand this as Bluetooth tracking compared with GPS tracking. Converting a Bluetooth UUID to an actual person's ID or phone number requires access to private information and your contact list, and who trusts these cheezy app developers to not harvest it all and sell it to third parties ala zuckerburg style and claim it was a hack.
--- End quote ---
But Corona tracking apps don't work that way. The Bluetooth ID gets hashed (which means converted to a unique fingerprint which cannot be traced back to the original; see SHA256 for example). On your phone you'll have a list with those fingerprints for a couple of weeks. A central server receives messages from phones of which the user says he/she is infected and you get a message saying a fingerprint is infected.
In short: there is no absolute location tracking involved and no personal c.q. traceable information is shared. Also many Corona tracking apps are open source so anyone can see how it works. As bd139 wrote: you should really do some investigation into how Corona tracking apps actually work instead of writing utter nonsense.
--- End quote ---
How does the hashed Bluetooth ID or beacon get resolved back to the original person for notification?
--- End quote ---
That is not necessary. Your phone can query a server for infected hashes and if one of these hashes matches your list with contacted hashes then you where near an infected person.
--- End quote ---
The only thing is... as long as the phone queries a server, the server will get your phone's IP address... right? And can associate it with the queried hashes. And from your IP it should be possible to know who's the phone owner (but of course that would require the phone provider to cooperate.) Just a thought about it being completely anonymous.
PlainName:
--- Quote ---And can associate it with the queried hashes.
--- End quote ---
No. The phone sends nothing. The server sends the hash of the infected phone, your phone just uses that to see if it matches any hash stored only on the phone. All the server can tell is that you have the app installed, nothing else (until or unless you get infected and elect to let people know that).
Electro Detective:
Please pardon this brief intrusion folks \$\Omega\$
--- Quote from: thinkfat on April 26, 2020, 11:41:53 am ---
--- Quote from: Electro Detective on April 26, 2020, 04:59:16 am ---I can see why everyone is just rolling with this on faith and trust, it's a lot easier on the brain isn't it?
hoping it will blow away soon and convinced I'm full of it
--- End quote ---
I think you've made your point sufficiently clear now. Looking at your recent posts I think you have not brought up a new argument or fact in at least a week if not two (I didn't bother looking back further).
What about keeping your mouth shut for a while instead of constantly trying to derail yet another thread?
--- End quote ---
Dear thinkfat, I missed that you are the OP, and apologize if I've derailed your thread,
and for not creating a new argument and bin the old one, to appease you
stay tuned mate, working on something new now.. :)
EEVblog:
--- Quote from: Bud on April 26, 2020, 10:22:31 pm ---This shit may quickly become weaponized... Say, airlines may deny you boarding the flight if you do not have the app installed.
--- End quote ---
The free market will ultimately take care of that. But they already know who sat next to who, so no need for that.
And government and businesses are slowly losing the ability to capitalise on people's fear, all this stuff isn't going to last too much longer, people's patience is already starting to wear thin. Imagine what it'll be like in 6-12 months time time trying to push this stuff.
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