private void Bw_RunWorkerCompletedRand(object sender, RunWorkerCompletedEventArgs e)
{
if (n == -1)
{
BeginRandomGeneration();
}
else if (n > 0)
{
this.schoof_value.Text = n.ToString();
BigInteger u = BigInteger.Parse(this.schoof_value.Text);
if (this.r_min_textbox.Text == "" || this.l_max_textbox.Text == "")
{
this.r_min_textbox.Text = "5";
this.l_max_textbox.Text = "3";
}
BigInteger r_min = BigInteger.Parse(this.r_min_textbox.Text);
BigInteger l_max = BigInteger.Parse(this.l_max_textbox.Text);
BigInteger nn = Maths.CheckingForNearPrimality(u, r_min, l_max);
if (nn == -1)
{
BeginRandomGeneration();
}
else
{
BigInteger h = u / nn;
this.n_value.Text = nn.ToString();
this.h_value.Text = h.ToString();
BigInteger p = BigInteger.Parse(this.gen_textbox_p.value_textbox.Text);
BigInteger a = BigInteger.Parse(this.gen_textbox_a.value_textbox.Text);
BigInteger b = BigInteger.Parse(this.gen_textbox_b.value_textbox.Text);
EllipticCurve curv = new EllipticCurve(p, a, b, nn, u);
EllipticCurve_Point point;
int k = 0;
do
{
k++;
point = curv.PointFinding(u, h, nn);
if (!point.IsNull)
{
break;
}
}while (k < 3);
if (point.IsNull)
{
BeginRandomGeneration();
}
else
{
this.Gx_textbox.Text = point.X.ToString();
this.Gy_textbox.Text = point.Y.ToString();
timer.Stop();
this.schoof_stop_button.Visibility = Visibility.Hidden;
MessageBox.Show(String.Format("Найдена схема:\n p = {0},\n a = {1},\n b = {2},\n n = {3},\n Gx = {4},\n Gy = {5}.",
this.gen_textbox_p.value_textbox.Text, this.gen_textbox_a.value_textbox.Text, this.gen_textbox_b.value_textbox.Text,
this.n_value.Text, this.Gx_textbox.Text, this.Gy_textbox.Text));
}
}
}
}
public Schoof(int seed, BigInteger a, BigInteger b, BigInteger p, BackgroundWorker bw)
{
this.ecs = new EllipticCurve(p, a, b, 0, 0);
this.bw = bw;
q = Maths.Sqrt(p);
if (q * q < p)
{
q++;
}
p1 = p - 1;
q2 = 2 * q;
q4 = 4 * q;
hcr = new HcsrWithSEED(seed);
pm = new PolynomialMethods(hcr);
random = new Random(seed);
}
private void Find_point_button_Click(object sender, RoutedEventArgs e)
{
this.warn_text_g.Visibility = Visibility.Hidden;
if (!CheckN())
{
return;
}
BigInteger p = BigInteger.Parse(this.gen_textbox_p.value_textbox.Text);
BigInteger a = BigInteger.Parse(this.gen_textbox_a.value_textbox.Text);
BigInteger b = BigInteger.Parse(this.gen_textbox_b.value_textbox.Text);
BigInteger u = BigInteger.Parse(this.schoof_value.Text);
BigInteger n = BigInteger.Parse(this.n_value.Text);
BigInteger h = u / n;
EllipticCurve curv = new EllipticCurve(p, a, b, n, u);
EllipticCurve_Point point;
try
{
int k = 0;
do
{
k++;
point = curv.PointFinding(u, h, n);
if (!point.IsNull)
{
break;
}
}while (k < 4);
this.Gx_textbox.Text = point.X.ToString();
this.Gy_textbox.Text = point.Y.ToString();
CheckG();
}
catch
{
MessageBox.Show("Неверный порядок группы точек, проверьте параметры");
}
}
public void LoadScheme(Scheme sch)
{
this.curv = new EllipticCurve(BigInteger.Parse(sch.P), BigInteger.Parse(sch.A), BigInteger.Parse(sch.B),
BigInteger.Parse(sch.N), new EllipticCurve_Point(BigInteger.Parse(sch.Gx), BigInteger.Parse(sch.Gy)));
}
public EllipticCurve_EDS(BigInteger p, BigInteger a, BigInteger b, BigInteger n, BigInteger gx, BigInteger gy)
{
this.curv = new EllipticCurve(p, a, b, n, new EllipticCurve_Point(gx, gy));
}
public EllipticCurve_EDS()
{
this.curv = null;
}