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Re: [tor-bugs] #30992 [Core Tor/Tor]: circpadding machines have shutdown sync issues (with intro circ NACKs and other cases) (was: circpadding: Circsetup machines give out warnings when client-side intro gets NACKed)
#30992: circpadding machines have shutdown sync issues (with intro circ NACKs and
other cases)
------------------------------------------+--------------------------------
Reporter: asn | Owner: mikeperry
Type: defect | Status: assigned
Priority: Medium | Milestone: Tor:
| unspecified
Component: Core Tor/Tor | Version: Tor:
| 0.4.1.1-alpha
Severity: Normal | Resolution:
Keywords: wtf-pad circpad 042-proposed | Actual Points:
Parent ID: | Points: 3
Reviewer: | Sponsor:
------------------------------------------+--------------------------------
Changes (by mikeperry):
* keywords: wtf-pad circpad 041-should => wtf-pad circpad 042-proposed
* points: 0.4 => 3
* milestone: Tor: 0.4.1.x-final => Tor: unspecified
Comment:
I am taking this out of 0.4.1 because none of the above cases are
catastrophic, and fixing them with a sequence number fix will still have
cell count issues that cause these circuits to be uniquely recognizable
(due to the extra padding negotiation *and* cannibalization onionskin
cells each time there is a purpose change due to a NACK). We need both the
sequence number fix and padding machine changes to make these cannibalized
NACKed intro circuits not stand out. :/
--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/30992#comment:13>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online
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