[tor-bugs] #5458 [Tor Client]: Clients should warn in the event of excessive circuit failures

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#5458: Clients should warn in the event of excessive circuit failures
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 Reporter:  mikeperry   |          Owner:     
     Type:  defect      |         Status:  new
 Priority:  major       |      Milestone:     
Component:  Tor Client  |        Version:     
 Keywords:              |         Parent:     
   Points:              |   Actualpoints:     
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 In https://lists.torproject.org/pipermail/tor-dev/2012-March/003361.html,
 the raccoon gave us some bounds to determine unreasonable amounts of
 circuit failure that indicate a potential tagging attack.

 Tor Clients should emit warnings if they observe anywhere near this amount
 of circuit failure. His bound for tagging was 80%, but frankly if even 50%
 of my circuits are failing, I would want tor to tell me.

 Maybe >50% failure should notice and >66% failure should warn?

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/5458>
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