[tor-bugs] #10218 [Tor]: Provide "users-per-transport-per-country" statistics for obfsbridges

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#10218: Provide "users-per-transport-per-country" statistics for obfsbridges
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     Reporter:  asn     |      Owner:  joelanders
         Type:  task    |     Status:  assigned
     Priority:  normal  |  Milestone:  Tor: 0.2.???
    Component:  Tor     |    Version:
   Resolution:          |   Keywords:  tor-bridge tor-pt bridgedb-dist
Actual Points:          |  Parent ID:
       Points:          |
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Changes (by joelanders):

 * owner:   => joelanders
 * status:  needs_information => assigned


Comment:

 Talked to asn on IRC about this; would like to take a shot at it in the
 next week.
 I've had a look at the interesting functions, and am trying to digest some
 of the Differential Privacy stuff.
 Think I can manage, once I figure out the `smartlist`s and `strmap`s.

 It's probably not worth the trouble to try to combine
 `geoip_get_transport_history()`, `geoip_get_client_history`, and this new
 function?
 We'll be doing a `HT_FOREACH(ent, clientmap, &client_history) {...}` in a
 few places.

 And y'all'll need to figure out the binning / noise parameters for me :)

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/10218#comment:12>
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