[tor-talk] End-to-end correlation for fun and profit

The Doctor drwho at virtadpt.net
Tue Aug 21 19:33:26 UTC 2012


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On 08/21/2012 02:57 PM, Maxim Kammerer wrote:

> No, it means that if you intercept traffic from 10 top-bandwidth
> Tor routers with some characteristics (Guard + Exit, basically) at
> what's probably the nearest hardware switch (seems true for the
> nodes listed in my original message), then the probability of both
> entry and exit nodes being one of these routers is close to 11.5%.
> I just multiplied bandwidth-weighted probabilities for entry and
> exit nodes. The routers don't have to be on the same network.
> Enforcing different-family circuit nodes skews the probabilities,
> but not by much, so I didn't bother to account for that.

A valid point, I will concede.

Exactly how strongly weighted by bandwidth is node selection these days?

- -- 
The Doctor [412/724/301/703] [ZS]

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