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

Tor Bug Tracker & Wiki blackhole at torproject.org
Fri Jan 22 12:33:27 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:                         |

Comment (by yawning):

 Replying to [comment:9 teor]:
 > > Actually, this patch is backwards-compatible, all existing addresses
 should work as they did before. It translates only shortened addresses.
 What kind of odd things could happen?
 > Some existing addresses have one or more "a"s at the end.

 I wasn't thinking clearly when I wrote that, those would work in the "get
 truncated down to the 'short' form then compared" sense.  Which is odd and
 unexpected, but probably fine.

 I stand by the NACK though (One additional unintended consequence of this
 is someone accidentally going to `spacebookcorewww.onion` would actually
 attempt to get descriptors instead of failing at the validation stage).

Ticket URL: <https://trac.torproject.org/projects/tor/ticket/18119#comment:10>
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