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[tor-bugs] #17057 [Tor]: add reverse proxy to bridges



#17057: add reverse proxy to bridges
-------------------------+---------------------
 Reporter:  elypter      |          Owner:
     Type:  enhancement  |         Status:  new
 Priority:  major        |      Milestone:
Component:  Tor          |        Version:
 Keywords:               |  Actual Points:
Parent ID:               |         Points:
-------------------------+---------------------
 pluggable transports mimic normal traffic like http.
 an adversary who is scanning all http traffic in his country could make a
 list of all the http servers that produce legit amounts of traffic. he
 then scans all the servers and exclude those which provide legit services.
 the only servers left now are bridges and a few hidden or password
 protected services.

 he then can block the connection and wait if the client connects to a
 similar service. if he does the adversary can repeat and collect more
 bridges until the user gives up.

 this could be prevented if the bridge provided an actual service. but this
 cannot be something like a generic website because it could easily be
 identified. if the bridge provided a reverse proxy instead then a real web
 service could be connected. it would look like normal load balancing or
 normal hosting if the site was only available under the bridge ip.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/17057>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online
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