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Re: [tor-bugs] #6232 [Analysis]: Make entropy-over-time graph
#6232: Make entropy-over-time graph
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Reporter: arma | Owner:
Type: enhancement | Status: needs_review
Priority: normal | Milestone:
Component: Analysis | Version:
Keywords: | Parent:
Points: | Actualpoints:
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Comment(by robgjansen):
Replying to [comment:29 asn]:
> Replying to [comment:28 robgjansen]:
> > We are still missing the graph where each of the plots are represented
as a percentage, computed as: (entropy / max_entropy). See my first post
above.
>
> Say, if the entropy of the current consensus is 8 bits, and the maximum
possible entropy is 11 bits, do you think that 70% would be the correct
figure in this case? It seems like that the logarithmic scale gives us an
overrated percentage.
>
> Maybe we should transform the values to the linear scale (`2^8/2^11`) to
get a more intuitive percentage. Or is there a better way to represent
this comparison?
I don't understand your opposition, but it shows that the meaning of
entropy to describe anonymity is not well understood. (I've been asking
'WTF does entropy mean?' all along.)
Read [http://www.freehaven.net/anonbib/cache/Diaz02.ps.gz this paper],
particularly Section 3.
--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/6232#comment:30>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online
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