[tor-bugs] #16467 [Tor]: Faster Ed25519 implementation.

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#16467: Faster Ed25519 implementation.
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     Reporter:  yawning      |      Owner:
         Type:  enhancement  |     Status:  needs_review
     Priority:  normal       |  Milestone:  Tor: 0.2.7.x-final
    Component:  Tor          |    Version:  Tor: 0.2.7
   Resolution:               |   Keywords:  performance, tor-relay
Actual Points:               |  Parent ID:  #9663
       Points:               |
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Comment (by teor):

 With the first set of flags in comment 10, I see the following performance
 gains on OS X 10.10.4, clang 3.7, x86_64, 2 GHz Intel Core i7:

 {{{
 ===== ed25519 =====
 Ed25519-donna = disabled.
 Generate public key: 66.08 usec
 Sign a short message: 85.41 usec
 Verify signature: 251.77 usec
 Convert public point from curve25519: 13.07 usec
 Blind a public key: 230.85 usec
 Ed25519-donna = enabled.
 Generate public key: 25.10 usec
 Sign a short message: 26.55 usec
 Verify signature: 108.35 usec
 Convert public point from curve25519: 5.65 usec
 Blind a public key: 120.96 usec
 }}}

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/16467#comment:11>
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