On 2011/05/13 (May), at 6:02 PM, Matthew Toseland wrote:
In any case, our options appear to be:
1) Try to make opennet work in China.
...
We could try to rotate links even, so that only a few nodes have
external connections at a time. The catch is that we don't know what
the limit above is, and it will probably vary from time to time. So
this is probably a dead-end.
We would also need to be able to distinguish between a local & foreign
node. For a single case (like China) that could work, but the general
case would be rather difficult to code up (detecting censorship
boundaries: national or ISP...). Link latency *might* be clue enough
for national boundaries, but not blocking ISPs.
2) Focus on darknet.
...
Difficulties:
a) If the Chinese darknet is completely sealed off from the western
network, how would they even get software updates? We need better
tools for migrating binary blobs.
b) We need some way to ensure that FOAF connections don't result in
dangerous external connections.
Wether open or dark, if a connection crosses the firewall border it is
susceptible. If not dodging under the foreign bandwidth cap (as you
mentioned), then the only issue is what to do with the few (if any)
unfiltered connections.
There is a chance that an algorithm which is both aware of 'separate
networks' and optimizes for latency would keep most of the traffic
within national borders (the firewall surely introduces some latency
by itself), and make it a non-issue.
One might predict the next iteration would block protocols not on a
whitelist.
--
Robert Hailey
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