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Cc: Bitcoin Development <bitcoin-development@lists.sourceforge.net>
Subject: Re: [Bitcoin-development] Outbound connections rotation
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On Mon, Aug 18, 2014 at 1:33 PM, Ivan Pustogarov <ivan.pustogarov@uni.lu> w=
rote:
> The attack I'm trying to address is described here: https://www.cryptolux=
.org/index.php/Bitcoin
> It was discussed here: https://bitcointalk.org/index.php?topic=3D632124.0
>
> It uses the following observation. Each NATed client connects to the Bitc=
oin network
> through 8 entry peers; he also advertises his public IP address to these =
peers which
> allows an attacker to make the mapping <8-entry-peers, client-IP-address>=
.

I'm afraid I'm losing you here.  The node advertises himself to
everyone he is connected to and in/or out, those nodes pass along
those advertisements.  When I receive an advertisement from a node I
do not know how far away the advertised peers is, presumably I can
accurately exclude it from being 0-hops=E2=80=94 itself=E2=80=94) 1 or more=
 should be
indistinguishable. Is there a reason that they're distinguishable that
I'm missing?

Can you explain to me how you propose to produce this mapping?