[tor-bugs] #29174 [Core Tor/Tor]: Guard Node can eclipse the hidden service

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#29174: Guard Node can eclipse the hidden service
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 Reporter:  TBD.Chen               |          Owner:  (none)
     Type:  defect                 |         Status:  new
 Priority:  Very High              |      Milestone:
Component:  Core Tor/Tor           |        Version:  Tor: 0.3.0.1-alpha
 Severity:  Critical               |     Resolution:
 Keywords:  guard, hidden service  |  Actual Points:
Parent ID:                         |         Points:
 Reviewer:                         |        Sponsor:
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Comment (by arma):

 Replying to [comment:4 mikeperry]:
 > it would not be to hard to augment it to send periodic end-to-end probes
 for introduce1 circuits

 In the original tor-design paper, we spoke of onion services doing spot-
 checks of their introduction points, to make sure that they are actually
 introducing. That approach would test a larger fraction of the system than
 just doing a liveness check within the circuit. Both are kind of messy
 though.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/29174#comment:5>
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