public EllipticCurve_Point GenerateRandomPoint()
{
EllipticCurve_Point ret = new EllipticCurve_Point();
BigInteger x = new BigInteger();
BigInteger sqr = new BigInteger();
BigInteger pp = BigInteger.Parse(P.ToString());
do
{
x = Maths.RandInRange(0, P);
BigInteger alpha = ((x * x * x) + A * x + B) % P;
if (alpha == 0)
{
ret.X = x;
ret.Y = 0;
return(ret);
}
BigInteger bi = BigInteger.Parse(alpha.ToString());
sqr = Maths.ModSqrt(bi, pp);
if ((sqr * sqr) % pp != bi)
{
sqr = 0;
}
}while (sqr == 0);
ret.X = x;
ret.Y = sqr;
return(ret);
}
