[e2e] 100% NAT - a DoS proof internet

[Jon Crowcroft]

So there's three things here

1/ a mad idea for a DoS proof internet - This goes like this:

What if 100% of hosts were behing a NAT (a bit like mark handley and
adam greenhalgh's idea on a dos proof internet in fdna a while back, 
but taken to extreme, or also like default off paper in hotnets)

So how would you ever reach someone (like most NAT traversal stuff is
tricky - viz skype - see also below:)

Meanwhile, here is how: Distributed Hashed Time.

So we all know about DHTs - they hash an object to a node id, then use
some p2p route to get to the node id (e.g. MIT's chord finger table
etc etc).

So if we want to talk to a set of known people, we hash their
identifier (name) to TIME. We then send to each other at that agreed
time - no-one else can send to us or from us to them, and the hash key
can be a shared secret....

there you go...the details should be simple (apart from how you
provide sufficiently accurate synchronized time without a globally
reachable adddress betweewn the NTP servers, which, I admit, is
probably a mite tricky - i guess you need to have them agree a set of
rough times or something:)

2/ a pointer to something about a mad bad idea i had about control
networks
http://www.cl.cam.ac.uk/~jac22/press-release-backstory.htm

3/ a reminder of a workshop deadline - sorry:)
(see website for more info on submissions)

------------------------------------------------------------------
	PAPER SUBMISSION DEADLINE HAS BEEN EXTENDED TO
			26 FEBRUARY 2006
------------------------------------------------------------------

			CALL FOR PAPERS

		Second International Workshop on
	Multi-hop Ad hoc Networks: from theory to reality
			  REALMAN 2006
		http://www.cl.cam.ac.uk/realman


cheers

jon