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be more accurate about guard probability

Roger Dingledine authored on 26/04/2015 20:25:57
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@@ -3622,7 +3622,7 @@ information on the two sides.
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 So, what should we do? Suppose the attacker controls, or can observe,
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 <i>C</i> relays. Suppose there are <i>N</i> relays total. If you select
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 new entry and exit relays each time you use the network, the attacker
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-will be able to correlate all traffic you send with probability
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+will be able to correlate all traffic you send with probability around
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 <i>(c/n)<sup>2</sup></i>. But profiling is, for most users, as bad
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 as being traced all the time: they want to do something often without
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 an attacker noticing, and the attacker noticing once is as bad as the