[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:  needs_revision
 Priority:  Medium                 |      Milestone:  Tor: very long term
Component:  Tor                    |        Version:
 Severity:  Normal                 |     Resolution:
 Keywords:  tor-hs needs-proposal  |  Actual Points:
Parent ID:                         |         Points:
  Sponsor:                         |
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Comment (by teor):

 Replying to [comment:4 yawning]:
 > Blindly truncating down addresses assuming the shorted format when doing
 the comparsion probably leads to odd things happening to existing deployed
 HSes that happen to have a stream of `a`s at the end.

 There are a few spare bits in prop224 HS addresses, one of them could be
 used for "short address". But I can't see a way of fixing this with the
 current address format, because it uses all its bits.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/18119#comment:5>
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