[tor-bugs] #20348 [Metrics/Censorship analysis]: kz no need tor, tor no need kz, if anybody want they can to use ultrasurf. cyberoam assists bloody dictatorships.

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#20348: kz no need tor, tor no need kz, if anybody want they can to use ultrasurf.
cyberoam assists bloody dictatorships.
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 Reporter:  dcf                          |          Owner:
     Type:  project                      |         Status:  closed
 Priority:  Medium                       |      Milestone:
Component:  Metrics/Censorship analysis  |        Version:
 Severity:  Normal                       |     Resolution:  invalid
 Keywords:  censorship block kz          |  Actual Points:
Parent ID:                               |         Points:
 Reviewer:                               |        Sponsor:
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Comment (by gk):

 For those not reading tor-talk regularly
 https://lists.torproject.org/pipermail/tor-talk/2016-November/042586.html
 has some results testing with Cyberoam and iBoss:
 {{{
 OBFS4 is blocked behind both filters. Cyberoam is doing some sort of
 timing attack, but I’m not sure what. When a bridge is used by lots of
 people, then it doesn’t work. Even enabling Iat mode=1 or 2 doesn’t fix
 the issue. When I tried a bridge with not many users, it worked no matter
 what Iat mode was set at. Behind iBoss, they are fingerprinting Packet
 Interarrival times. Iat mode 1 and 2 worked no matter how much load the
 bridges had on them.
 }}}

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/20348#comment:59>
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