[tor-bugs] #18119 [Tor]: .onion domain names can be really short

Tor Bug Tracker & Wiki blackhole at torproject.org
Sat Jan 23 08:20:13 UTC 2016


#18119: .onion domain names can be really short
-----------------------------------+-------------------------------------
 Reporter:  azazar                 |          Owner:
     Type:  enhancement            |         Status:  closed
 Priority:  Medium                 |      Milestone:  Tor: very long term
Component:  Tor                    |        Version:
 Severity:  Normal                 |     Resolution:  wontfix
 Keywords:  tor-hs needs-proposal  |  Actual Points:
Parent ID:                         |         Points:
  Sponsor:                         |
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Comment (by azazar):

 Replying to [comment:15 yawning]:
 > Replying to [comment:14 azazar]:
 > > It will fail, unless someone is able to bruteforce secret for
 `facebookcorewwwa.onion`(which is resolved from `facebookcorewww.onion`).
 And this isn't easier, than bruteforcing hash for
 `facebookcorewwwi.onion`(difficulty of those tasks are exactly equal).
 >
 > It will fail, after querying all of the HSDirs for a non-existent hidden
 service.  This is a waste of network resources.

 And how much extra resources that could "waste"? Milliseconds of CPU time
 and maybe one or several kilobytes of network traffic occasionally? Do you
 really think, that it's more important, than user convenience?

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/18119#comment:16>
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