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Re: [tor-bugs] #4700 [Core Tor/Tor]: Tor should provide a mechanism for hidden services to differentiate authorized clients and circuits



#4700: Tor should provide a mechanism for hidden services to differentiate
authorized clients and circuits
-------------------------------------------------+-------------------------
 Reporter:  katmagic                             |          Owner:  (none)
     Type:  enhancement                          |         Status:  new
 Priority:  Medium                               |      Milestone:  Tor:
                                                 |  unspecified
Component:  Core Tor/Tor                         |        Version:
 Severity:  Normal                               |     Resolution:
 Keywords:  tor-control, needs-proposal, tor-hs  |  Actual Points:
  needs-design, 035-proposed                     |
Parent ID:                                       |         Points:  10
 Reviewer:                                       |        Sponsor:
-------------------------------------------------+-------------------------
Changes (by mahrud):

 * cc: mahrud (added)


Comment:

 Sorry I forgot to give any feedback for this. It worked well! At some
 point in the future it might be a good idea to implement the v2 protocol
 as well.

 Regarding torrc options:
 Can you also add an option for encoding the circuit ID in the port or in
 the source IP?For our specific application using the last 32 bits of a
 private ipv6 subnet (like fc00::/7) is ideal for two reasons:
 1. This is a large private subnet, so we don't accidentally collide with
 anyone else's IP.
 2. The rest of the pipeline can simply look at that IP and pretend
 everything is normal, no need to implement special logic to parse the port
 numbers.
 The only requirement is to implement a proxy protocol server in the normal
 pipeline, which is already done.
 Perhaps `HiddenServiceExportCircuitID proxy port` for ahf's implementation
 and `proxy srcIP fdXX:XXXX:.../96` for my suggestion?

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/4700#comment:16>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online
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