Remove secret-dependant non-constant time operation in ecmult_const.#709

Merged

sipa merged 2 commits intobitcoin-core:masterfrom

gmaxwell:202001_consttimeecdh

Jan 14, 2020

Commits on Jan 9, 2020

Remove secret-dependant non-constant time operation in ecmult_const.
gmaxwell
committed

Commits on Jan 11, 2020

Clarify comments about use of rzr on ge functions and abs function.
gmaxwell
committed