Re: [tor-relays] Exit Node Checking

[Roger Dingledine <arma@xxxxxxx>]

On Sun, Nov 05, 2017 at 03:16:42PM -0500, Kijani wrote:
> Does anyone have a script for periodically updating strick exit nodes lists after running an inspection as per https://tc.gtisc.gatech.edu/bss/2014/r/spoiled-onions-slides.pdf or similar? Looking to help protect against crypto transaction sender redirect attacks.

Trying to maintain a list like this on your own is counterproductive
and potentially dangerous:

(A) If you have a private set of relays that you try to avoid, then
the resulting difference in path selection can act as a tracking cookie.
The more different you are from normal clients, the easier it is to
recognize you.

(B) If you discover relays that are modifying traffic, then you should
tell the bad-relays list, so they can kick them out of the network to
keep everybody safer:
https://blog.torproject.org/how-report-bad-relays
https://trac.torproject.org/projects/tor/wiki/doc/ReportingBadRelays

--Roger

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