[tor-bugs] #17349 [Tor]: Create an ed25519 shared randomness key for dirauths

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#17349: Create an ed25519 shared randomness key for dirauths
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 Reporter:  asn     |          Owner:
     Type:  defect  |         Status:  new
 Priority:  Medium  |      Milestone:  Tor: 0.2.8.x-final
Component:  Tor     |        Version:
 Severity:  Normal  |     Resolution:
 Keywords:          |  Actual Points:
Parent ID:  #16943  |         Points:
  Sponsor:          |
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Comment (by asn):

 Also, it's worth mentioning that dirauths are relays by default, and hence
 they have ed25519 keys as relays. Those keys should also be included in
 their votes, so other dirauths should be able to get them.

 Could we use those keys for prop250? And would we use those keys as they
 are, or would we need to generate a subkey for SR purposes?

 How could this be done?

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/17349#comment:1>
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