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

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#29077: uTLS for meek-client camouflage
------------------------------+------------------------------
 Reporter:  dcf               |          Owner:  dcf
     Type:  enhancement       |         Status:  needs_review
 Priority:  Medium            |      Milestone:
Component:  Obfuscation/meek  |        Version:
 Severity:  Normal            |     Resolution:
 Keywords:  moat utls         |  Actual Points:
Parent ID:                    |         Points:
 Reviewer:  ahf               |        Sponsor:
------------------------------+------------------------------

Comment (by dcf):

 Replying to [comment:22 cohosh]:
 > Hey a did a quick look, here are some comments:
 >
 > - meek-client now requires go version 1.11 or later because of utls. I
 looked but didn't find in the documentation or READMEs the required go
 version for building the client. It's possible I missed it, just wanted to
 point out the required version update.

 Thank you for reviewing.

 Yes, it's a bit of a bummer to require such a recent go... I think it's
 because uTLS is a copy of the stdlib crypto/tls with changes applied on
 top, and the stdlib is not shy about requiring a recent compiler.
 Unfortunately uTLS will put us on more of an update and maintenance
 treadmill. Not only will we have to keep an eye on uTLS to pick up new
 fingerprints, but uTLS will have to stay on top of crypto/tls updates
 ([https://github.com/refraction-networking/utls/pull/12 like this]).
 There's a fair amount of uncertainty yet, I feel.

 > {{{
 > +// otherwise, create an internal http.Transport. In either case, set
 DialTLS on
 > +// the created Transport do a function that dials using uTLS As a
 special case,
 > }}}
 > do-->to
 > uTLS-->uTLS.

 Thanks, fixed these in [https://gitweb.torproject.org/pluggable-
 transports/meek.git/commit/?h=utls_3&id=dd26d797b15b8a05262209e07846f7204420e81a
 dd26d797b15b8a05262209e07846f7204420e81a].

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/29077#comment:23>
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