[tor-talk] A question about hidden services and tor in general

Andrea Shepard andrea at torproject.org
Sat Nov 2 09:45:51 UTC 2013

On Sat, Nov 02, 2013 at 10:46:38AM +1030, DeveloperChris wrote:
> I just reviewed the tor hidden services page. so I am pretty green
> about the way it works.
> From the description I gather this
> When a client wants to connect to a hidden service an introducer
> picks a random rendezvious point which then is used to shuttle
> packets back and forth between the client and the hidden service.
> If I wanted to discover the location of the hidden service is it not
> simple to act as the rendezvious point? If I had enough resources
> and flooded tor with nodes eventually one of my nodes would be
> chosen as the rendezvious point and therefore I have the client IP
> (me) the rendezvious point ip (me) and the supposedly hidden
> services ip (target).

There's a whole circuit between the HS and the rendezvous point.  You'd
have the same problem as trying to deanonymize a client from a subverted
exit node.

Andrea Shepard
<andrea at torproject.org>
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