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

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#18119: .onion domain names can be really short
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 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 teor):

 Replying to [comment:16 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 think, that it's more important, than user's convenience?

 I don't think we'll be taking this code.

 To get community consensus on a significant change like this, people write
 proposals and post them to the tor developer mailing list.

 Given the number of outstanding hidden service proposals, and the
 availability of other onion "friendly name" systems, I'll warn you in
 advance that it's unlikely to happen.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/18119#comment:17>
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