[tor-bugs] #9719 [Tor]: Reuse Y in ntor

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#9719: Reuse Y in ntor
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 Reporter:  rransom                              |          Owner:
     Type:  enhancement                          |         Status:
 Priority:  Medium                               |  assigned
Component:  Tor                                  |      Milestone:  Tor:
 Severity:  Normal                               |  0.2.???
 Keywords:  tor-relay, performance, ntor,        |        Version:  Tor:
  027-triaged-1-in                               |  0.2.7
Parent ID:  #9662                                |     Resolution:
 Reviewer:                                       |  Actual Points:
                                                 |         Points:  medium
                                                 |        Sponsor:
                                                 |  SponsorU-can
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Changes (by yawning):

 * severity:   => Normal


Comment:

 This feels relatively minor to me now, though it won't be hard to do.  On
 an i7-5600U, this will cut out 20 usec or so per handshake for the fast
 path.  There's probably other optimizations that can be made that are more
 impactful (Like pulling in CPU specific X25519 implementations).

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/9719#comment:12>
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