[tor-bugs] #32040 [Core Tor/Tor]: HS intro padding machine reactivates after receiving INTRODUCE_ACK

Tor Bug Tracker & Wiki blackhole at torproject.org
Wed Jun 10 17:34:09 UTC 2020


#32040: HS intro padding machine reactivates after receiving INTRODUCE_ACK
-------------------------------------------------+-------------------------
 Reporter:  asn                                  |          Owner:  asn
     Type:  defect                               |         Status:
                                                 |  needs_revision
 Priority:  Medium                               |      Milestone:  Tor:
                                                 |  0.4.4.x-final
Component:  Core Tor/Tor                         |        Version:
 Severity:  Normal                               |     Resolution:
 Keywords:  wtf-pad, padding, circpad-           |  Actual Points:
  researchers-want, 043-deferred                 |
Parent ID:                                       |         Points:  1
 Reviewer:                                       |        Sponsor:
                                                 |  Sponsor2
-------------------------------------------------+-------------------------

Comment (by mikeperry):

 Replying to [comment:12 asn]:
 > Hm. I think CIRCUIT_PURPOSE_C_INTRODUCE_ACK_WAIT is the right purpose to
 start applying padding for the purposes of the prop302 machines , because
 it's after receiving INTRODUCE_ACK is received that we should start
 sending padding, and not after sending INTRODUCE1.

 Wait, isn't C_INTRODUCING before ACK_WAIT? The original code listed
 C_INTRODUCING as well, which means we were firing up machines earlier,
 right?

 > Perhaps we can let the rendezvous machines as is? If it's not broken
 let's not fix it...

 Ok.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/32040#comment:14>
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