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[freehaven-cvs] slight massage to conclusion
Update of /home/freehaven/cvsroot/doc/routing-zones
In directory moria.mit.edu:/tmp/cvs-serv20890
Modified Files:
routing-zones.tex
Log Message:
slight massage to conclusion
Index: routing-zones.tex
===================================================================
RCS file: /home/freehaven/cvsroot/doc/routing-zones/routing-zones.tex,v
retrieving revision 1.73
retrieving revision 1.74
diff -u -d -r1.73 -r1.74
--- routing-zones.tex 17 Jun 2004 23:59:29 -0000 1.73
+++ routing-zones.tex 18 Jun 2004 00:06:14 -0000 1.74
@@ -1420,7 +1420,7 @@
paths. If node replacement is used in path selection, the probability
that a single AS observes all links in a four-hop path through the mix
is between 0.1 and 0.2; if node replacement is not used, this
- probability is less than 0.05 for both the Tor and Mixmaster
+ probability is less than 0.1 for both the Tor and Mixmaster
topologies.
\item Figures~\ref{fig:as_observe} and~\ref{fig:as_observe_75} show
@@ -1429,13 +1429,16 @@
attacks from a single AS, a newborn network with nodes almost entirely
in the US is as robust as a mature network like Mixmaster.
-\item We analyzed common entry and exit paths in existing mix
- network topologies. We show that given random entry and
- exit node selection, even when the initiator chooses distinct entry and
- exit nodes, a single AS will be able to observe both the
- entry and exit path to the mix network between 10\% and 30\% of the time.
- However, if the initiator chooses entry and exit nodes with
- location independence in mind, she can prevent most such attacks.
+\item We analyzed common entry and exit paths in existing mix network
+ topologies. We show that given random entry and exit node selection,
+ even when the initiator chooses distinct entry and exit nodes, a
+ single AS will often be able to observe both the entry and exit path
+ to the mix network between 10\% and 30\% of the time. Because of path
+ asymmetry in the Internet, a entry/exit node pair that has good
+ location independence for a forward path through the mix network may
+ not always have good location independence in the reverse direction.
+ However, if the initiator chooses entry and exit nodes with location
+ independence in mind, she can prevent most such attacks.
\end{tightlist}
%This work brings to light an important insight that should guide the
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