private void buttonHitungY_Click(object sender, EventArgs e)
{
ClearKey();
uint p, g, x;
if (uint.TryParse(textBoxP.Text, out p) && uint.TryParse(textBoxG.Text, out g) && uint.TryParse(textBoxX.Text, out x))
{
P = p;
G = g;
X = x;
if (!Kripto.IsMiller(P, (int)Math.Min(P, (ulong)100)))
{
MessageBox.Show("P bukan prima");
}
else if (G >= P || G < 1)
{
MessageBox.Show("G antara 1 sampai " + (P - 1));
}
else if (X >= P || X < 1)
{
MessageBox.Show("X antara 1 sampai " + (P - 1));
}
else if (!Kripto.IsGeneratorModulo(g, p))
{
MessageBox.Show("G bukan generator modulo P");
}
else
{
dataGridViewNotSortAbleKey.Rows.Add("P = " + P);
dataGridViewNotSortAbleKey.Rows.Add("G = " + G);
dataGridViewNotSortAbleKey.Rows.Add("X = " + X);
dataGridViewNotSortAbleKey.Rows.Add("Y = G^X % P");
dataGridViewNotSortAbleKey.Rows.Add("Y = " + G + "^" + X + " % " + P);
Y = Kripto.FastExponent(G, X, P, dataGridViewNotSortAbleKey);
dataGridViewNotSortAbleKey.Rows.Add("Y = " + G + "^" + X + " % " + P + " = " + Y);
textBoxY.Text = Y.ToString();
int t = 0;
ulong temp = P;
while (temp > 1)
{
t++;
temp >>= 1;
}
numericUpDownBlockSize.Maximum = t;
numericUpDownBlockSize.Value = t;
buttonEnkripsi.Enabled = true;
}
}
else
{
MessageBox.Show("Cek p, q dan x");
}
}