Re: [tor-bugs] #26627 [Core Tor/Tor]: HSv3 throws many "Tried connecting to router at [IP:port], but RSA identity key was not as expected"

["Tor Bug Tracker & Wiki" <blackhole@xxxxxxxxxxxxxx>]

#26627: HSv3 throws many "Tried connecting to router at [IP:port], but RSA identity
key was not as expected"
--------------------------+-----------------------------------
 Reporter:  asn           |          Owner:  (none)
     Type:  defect        |         Status:  needs_information
 Priority:  Medium        |      Milestone:  Tor: unspecified
Component:  Core Tor/Tor  |        Version:
 Severity:  Normal        |     Resolution:
 Keywords:  tor-hs        |  Actual Points:
Parent ID:                |         Points:
 Reviewer:                |        Sponsor:
--------------------------+-----------------------------------
Changes (by teor):

 * status:  new => needs_information


Comment:

 Any relay that causes this error on all its connections should be marked
 as not Running by the directory authorities, and removed from the
 consensus.

 So here are two possibilities:
 * the HS is connecting to Tor versions that have broken ed25519 handshakes
 * the HS tor expects ed25519 in the handshake, even when the other Tor
 doesn't support ed25519 link handshakes
 * clients are asking the HS to connect with an ed25519 key, but the relay
 doesn't actually have one

 The operator could also provide some additional information:
 * what Tor version are they running?
 * are they using single onion services?
 * are they using any kind of load balancing?
 * do the IP, Port, and keys correspond to relays in a recent consensus?
   * if so, do those relays have anything in common?

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/26627#comment:1>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online

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