Note: parentTerm.TermNote
Field Representation indicator (an ECC domain parameter); an indication of the basis used for representing field elements. FR is NULL if the field has odd prime order or if a Gaussian normal basis is used. If a polynomial basis representation is used for a field of order 2m, then FR indicates the reduction polynomial (a trinomial or a pentanomial).
Source(s):
NIST SP 800-56A Rev. 2
[Superseded]