FYI
On 1/26/18, 7:06 AM, "D. J. Bernstein" <[email protected]> wrote:
Tung Chou's sandy2x code was (as the name suggests) optimized for Sandy
Bridge. For Haswell and Skylake, the slides from Julio Lopez in
https://hyperelliptic.org/tanja/lc17/ascrypto.html
report two followup implementations producing roughly 25% speedups for
Curve25519; see slide 67/83.
I do think that the hacl64 Curve25519 speeds are fast enough for pretty
much everybody, and verification is certainly a huge plus, but people
who want more speed should be aware of what's possible---and people
working on Curve25519 verification shouldn't think they're done yet!
---Dan
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