[tor-bugs] #28610 [Core Tor/Tor]: will WTF-PAD impair bandwidth scanning?

Tor Bug Tracker & Wiki blackhole at torproject.org
Sat Nov 24 22:02:36 UTC 2018


#28610: will WTF-PAD impair bandwidth scanning?
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 Reporter:  starlight         |          Owner:  (none)
     Type:  enhancement       |         Status:  new
 Priority:  Medium            |      Component:  Core Tor/Tor
  Version:  Tor: unspecified  |       Severity:  Normal
 Keywords:                    |  Actual Points:
Parent ID:                    |         Points:
 Reviewer:                    |        Sponsor:
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 Is it possible that excess padding data from the WTF-PAD enhancement will
 impair quality of bandwidth scanner results?

 If the answer is yes, should a control channel feature be created to allow
 disabling WTF-PAD for controller-managed circuits?

 Note in anticipation of a debatable concern:  Great quantities of thought
 have been expended and verbiage has been generated regarding
 fingerprinting of scanner traffic that can lead to attacks on the network,
 but my view is this is not as important as producing good network balance.
 Attracting excess traffic to relays is seemingly of no benefit to the
 sophisticated adversary and brick-throwing troublemakers can be identified
 and mitigated.  Years of experience with Torflow have not resulted in
 major incident (AFIK).

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/28610>
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