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Re: [tor-bugs] #17178 [Tor]: Rendezvous Single Onion Services: One-Hop Intro Point and Rendezvous

#17178: Rendezvous Single Onion Services: One-Hop Intro Point and Rendezvous
-------------------------------------------------+-------------------------
 Reporter:  teor                                 |          Owner:  teor
     Type:  enhancement                          |         Status:
 Priority:  High                                 |  needs_review
Component:  Tor                                  |      Milestone:  Tor:
 Severity:  Normal                               |  0.2.8.x-final
 Keywords:  028-triaged, tor-hs,                 |        Version:
  TorCoreTeam201602                              |     Resolution:
Parent ID:                                       |  Actual Points:
  Sponsor:  SponsorU                             |         Points:  large
-------------------------------------------------+-------------------------
Changes (by teor):

 * status:  needs_revision => needs_review


Comment:

 Replying to [comment:42 dgoulet]:
 > Replying to [comment:39 teor]:
 >
 > All fixes look good!
 >
 > [snip]
 >
 > >
 > > I think that you're right, if you use a Tor2web client with a HS, or
 run a standard tor client as a RSOS, you lose anonymity.
 > >
 > > So let's prevent that. See bae2a4de61d6d440840411fb992ffc72ad04c660.
 >
 > Ok I see that this is extra protection since somehow a client using an
 RSOS tor instance is distinguishable in some ways? (comment in or.h):
 >
 > {{{
 > +   * location-anonymous. However, client use of a RSOS may be
 statistically
 > +   * distinguishable.
 > }}}
 >
 > As a last change, I would document that part in the manpage for the
 option `RendezvousSingleOnionServiceNonAnonymousServer`. It changes things
 a bit because now the server that host a RSOS needs a second tor for any
 other client usage which is not that easy to have in a standard Linux
 distro (systemd and all only manage one single tor). As long as the user
 as a way to learn that before setting it up, it's fine.
 >
 > Thanks!

 I added the manual page changes for RSOS and Tor2webMode in 4093eeb. I
 also fixed the option checking so that it takes into account the compile-
 time --enable-tor2web-mode setting, and not just the options at runtime.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/17178#comment:43>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online
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