Now that the JEP for X25519/X448 key agreement is a candidate, we can
proceed with the API and specification review. Please review the
proposed API spec and provide comments by the end of Saturday,
January 13, anywhere on earth. At that point, I will combine your
feedback with the initial feedback from the CSR group and submit the
API for final review by the CSR.
The only significant change to the API since our last discussion is
that I changed the names of the key specs and interfaces from "XDH..."
to "XEC..." This makes them more general and reusable in things like
XEdDSA and other non-Diffie-Hellman cryptosystems based on the
representations/operations defined in RFC 7748.