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Re: [tor-talk] Hidden Service and exit circuit questions?




>> can an exit node initiate contact with my HS without ever going through a
> rendezvous
>
> No, there is a handshake process needed to establish a Tor connection
> between the two machines, and that handshake only works through the
> rendezvous point.  See
>
> https://www.torproject.org/docs/hidden-services.html.en
>
> https://gitweb.torproject.org/torspec.git/tree/rend-spec.txt

Yeah I understand that's the way it's "intended" to work, but:

   https://gitweb.torproject.org/torspec.git/tree/rend-spec.txt

       ... 1.11. Creating streams

   ...From then on, Bob's OP treats the stream as an
   ordinary exit connection.
   [ Except he doesn't include addr in the connected cell or the end
     cell. -RD]

   Alice MAY send multiple RELAY_COMMAND_BEGIN cells along the circuit, to open
   multiple streams to Bob. ...

Since there is already an established circuit between the machine running the
Tor service and an exit node, I'm thinking that the exit node may be able to
use the existing circuit to access the HS port over the 3-hop circuit without
ever going through the normal 6-hop rendezvous?

Can an exit node initiate a stream back? I understand that the newest nmap
will support scanning through Tor. Will exit nodes be able to scan back?

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