/* Multiply P by e in group G1 */
public static ECP G1Mul(ECP P, BIG e)
{
ECP R;
if (USE_GLV)
{
//P.affine();
R = new ECP();
R.Copy(P);
int np, nn;
ECP Q = new ECP();
Q.Copy(P);
Q.Affine();
BIG q = new BIG(ROM.CURVE_Order);
FP cru = new FP(new BIG(ROM.CURVE_Cru));
BIG t = new BIG(0);
BIG[] u = Glv(e);
Q.GetX().Mul(cru);
np = u[0].NBits();
t.Copy(BIG.ModNeg(u[0], q));
nn = t.NBits();
if (nn < np)
{
u[0].Copy(t);
R.Neg();
}
np = u[1].NBits();
t.Copy(BIG.ModNeg(u[1], q));
nn = t.NBits();
if (nn < np)
{
u[1].Copy(t);
Q.Neg();
}
u[0].Norm();
u[1].Norm();
R = R.Mul2(u[0], Q, u[1]);
}
else
{
R = P.Mul(e);
}
return(R);
}
