Nowpointmultiplicationusingrepeatedpointdoublingisperformed.TheresultofpointmultiplicationwillbekP.Thisscalarquantitykistheasciivalueofeachlettertakenabove.ApointontheellipticcurveoverF2mis
representedintheformof(x,λ)ratherthaninthe
formof(x,y)whenusingtherepeateddoublingmethodforscalarmultiplication.
EverypointP=(x,y)ԑE(F2m),wherex≠0,P
canberepresentedasthepair(x,λ),whereλ=x
+y/x.