Consider repurposing scalar generation

[chris-wood]

From @armfazh:

Appendix D is equal to Section 4.3 of VOPRF. Should this section be replaced by reference or by a verbatim copy of Sec 4.3?

https://datatracker.ietf.org/doc/html/draft-irtf-cfrg-voprf#section-4.3

[chris-wood]

The FROST section came first =) I recommend we do not make this change. I think it's simpler better to keep the document self-contained when possible.

[chelseakomlo]

Agreed. Ok if I close @chris-wood ?

[chris-wood]

@armfazh I'm going to close this without a change to FROST. It's an unnecessary dependency that we'd be introducing without much benefit.

[armfazh]

sounds good.