[freehaven-cvs] add a note on getting traffic by running highly reli...

[arma@seul.org (Roger Dingledine)]

Update of /home/freehaven/cvsroot/doc/econp2p03
In directory moria.mit.edu:/home/arma/work/freehaven/doc/econp2p03

Modified Files:
	econp2p03.tex 
Log Message:
add a note on getting traffic by running highly reliable nodes


Index: econp2p03.tex
===================================================================
RCS file: /home/freehaven/cvsroot/doc/econp2p03/econp2p03.tex,v
retrieving revision 1.6
retrieving revision 1.7
diff -u -d -r1.6 -r1.7
--- econp2p03.tex	2 Apr 2003 01:21:21 -0000	1.6
+++ econp2p03.tex	2 Apr 2003 02:05:06 -0000	1.7
@@ -188,13 +188,20 @@
 This reputation system attempts to improve reliability in a long-term
 sense, rather than giving provable delivery guarantees for each
 message, a la \cite{shuffle}.
-On the other hand, it still relies both on proofs of correct
-behavior to establish reputations, and trusted witnesses to determine
-and keep track of them. The reputation system in \cite{casc-rep} does
+On the other hand, it still relies both on proofs of correct behavior
+to establish reputations, and trusted witnesses to determine and
+keep track of them. These witnesses are both a trust bottleneck and a
+communications bottleneck. Further, an anonymity-breaking adversary with
+an adequate budget would do best to provide very good service, possibly
+also attempting DoS against other high-quality providers. None of the
+usual metrics of performance and efficiency will help tell who the bad
+guys are in this instance.
+
+The reputation system in \cite{casc-rep} does
 away with trusted witnesses and proofs in favor of self-rating groups
 of remailers. Remailers are arranged in cascades (fixed paths through the
 network, so batches of messages go through in synchrony).
-New cascades are formed at a regular interval (say, daily),
+New cascades are formed at a regular interval (eg daily),
 and the formation of cascades is based on a communally generated
 random value so that no set of collaborating remailers can predict which
 remailer will be in which cascade, as long as at least one remailer is

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