[tor-bugs] #8710 [Tor]: Sybil selection should prefer measured over advertised bw
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Tue Apr 16 19:02:54 UTC 2013
#8710: Sybil selection should prefer measured over advertised bw
-------------------------------------+--------------------------------------
Reporter: nickm | Owner:
Type: defect | Status: needs_review
Priority: normal | Milestone: Tor: 0.2.4.x-final
Component: Tor | Version:
Keywords: tor-auth 024-deferrable | Parent:
Points: | Actualpoints:
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Comment(by arma):
Replying to [comment:6 cypherpunks]:
> Replying to [comment:4 arma]:
> > The sybil tie-breaker decision is meant to let us take the most useful
relays from the set, and add those to the network. The choice of relay is
not meant to be a security thing.
>
> !!?!??!
Replace "is" with "has never to this point been".
If we're trying to protect against some sort of security issue, we've been
doing it wrong.
And this proposed change would probably still be doing it wrong -- first
because totally unloaded nodes will look good on their bandwidth
measurements, and second because the bandwidth measurements are still
gameable.
If your adversary can run a relay on your IP address, that's bad news as
you say.
--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/8710#comment:7>
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