[tor-bugs] #29077 [Obfuscation/meek]: uTLS for meek-client camouflage

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#29077: uTLS for meek-client camouflage
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     Reporter:  dcf               |      Owner:  dcf
         Type:  enhancement       |     Status:  new
     Priority:  Medium            |  Milestone:
    Component:  Obfuscation/meek  |    Version:
     Severity:  Normal            |   Keywords:  moat utls
Actual Points:                    |  Parent ID:
       Points:                    |   Reviewer:
      Sponsor:                    |
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 Use [https://github.com/refraction-networking/utls utls]
 ([https://censorbib.nymity.ch/#Frolov2019a paper]) for TLS camouflage
 instead of a headless Firefox helper. The camouflage will not be as robust
 as a headless browser, but the complexity will be lower. It will be
 portable to platforms that don't have a convenient Firefox instance to
 use. It will fix #12774, which is caused by tor starting multiple
 instances of meek-client-torbrowser, which in turn start multiple
 instances of Firefox, which error because they are using the same profile
 directory.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/29077>
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