private static EllipticCurvePoint getResult(int[] bits, int index, EllipticCurve curve, EllipticCurvePoint auxPoint)
{
EllipticCurvePoint result = auxPoint;
while (index < bits.Length)
{
auxPoint = PointDoubling.doublePoint(curve, auxPoint);
if (bits[index] == 1)
{
result = PointAddition.addPoints(curve, result, auxPoint);
}
index++;
}
return(result);
}
public static EllipticCurvePoint multiplyPoint(BigInteger prk, EllipticCurvePoint point, EllipticCurve curve)
{
if (prk == 0)
{
return new EllipticCurvePoint {
x = 0, y = 0
}
}
;
int[] bits = BitOperations.getBits(prk);
int index = 0;
EllipticCurvePoint initial = point;
while (bits[index] == 0)
{
initial = PointDoubling.doublePoint(curve, initial);
index++;
}
return(getResult(bits, index + 1, curve, initial));
}