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Re: tor and p2p

The section on Bandwidth and filesharing seems to be dealing with exit nodes. What I'm suggesting is that content is contained within the Tor network so exit nodes are not used at all.

What I don't know is if the non-exit nodes in the Tor network are bandwidth-constrained. If there is extra capacity in the middle or entry nodes, P2P may be a good way to fill that capcacity.

On Jan 24, 2007, at 3:01 PM, Paul Syverson wrote:

On Wed, Jan 24, 2007 at 02:17:47PM -0700, eweb101 wrote:
I don't think it would be too difficult to get something like
bittorrent working within the Tor network. What I mean by that is both
the tracker and all clients are within the network. We'd have to
update the bittorrent client software to not use IP addresses of
course, but something similar has already been done on Azureus for I2P.
Users of the network would have to set themselves up a hidden service
in order to participate.

I'm sure there will be scaling issues involved with the increased
number of hidden services and we'd want to optimize some of the
transfer parameters but conceptually, it shouldn't be difficult to

See "Challenges in deploying low-latency anonymity" available on the Tor docs webpage via a link in the URL Roger gave in his last message or at http://www.onion-router.net/Publications.html#challenges

for a preliminary discussion. Cf. the sections "Bandwidth and file-sharing"
and "Scalability".

Paul Syverson                              ()  ascii ribbon campaign
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