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Re: [tor-bugs] #18361 [Tor Browser]: Issues with corporate censorship and mass surveillance

#18361: Issues with corporate censorship and mass surveillance
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 Reporter:  ioerror                       |          Owner:  tbb-team
     Type:  enhancement                   |         Status:  new
 Priority:  High                          |      Milestone:
Component:  Tor Browser                   |        Version:
 Severity:  Critical                      |     Resolution:
 Keywords:  security, privacy, anonymity  |  Actual Points:
Parent ID:                                |         Points:
  Sponsor:                                |
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Comment (by phw):

 I am helping out a group of researchers that developed a scheme that
 allows a service provider (say, CloudFlare) to sign a set of tokens for
 clients (say, Tor Browser) after the client proved that it is human (say,
 by solving a CAPTCHA).  These tokens can subsequently be spent when
 revisiting the service provider '''without''' having to prove again that
 you're human.  The tokens are created by the client, and signed by the
 service provider using blind signatures.  Therefore, the service provider
 is unable to link tokens across sites.  There are still many details to
 flesh out but this could be a medium to long term solution, albeit at the
 cost of having some kind of protocol between client and service provider.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/18361#comment:102>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online
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