private void f4_button_GetRandomCb_Click(object sender, EventArgs e)
{
BigInteger P = BigInteger.Parse(f4_textP.Text);
RandomNumberGenerator rng = RandomNumberGenerator.Create();
BigInteger Db, Cb = BigIntegerRandomUtils.RandomInRange(rng, 2, P - 1);
while (!(NumberTheory.GCD(Cb, P - 1, out BigInteger x, out BigInteger y) == 1))
{
Cb = BigIntegerRandomUtils.RandomInRange(rng, 2, P - 1);
}
;
f4_textCb.Text = Convert.ToString(Cb);
}
private void f9_button_GetRandomSecret_Click(object sender, EventArgs e)
{
RandomNumberGenerator rng = RandomNumberGenerator.Create();
BigInteger N = BigInteger.Parse(f9_textN.Text);
BigInteger P = BigInteger.Parse(f9_textP.Text);
BigInteger Q = BigInteger.Parse(f9_textQ.Text);
BigInteger fi = (P - 1) * (Q - 1); // Функция Эйлера от N
BigInteger SecretKey = BigIntegerRandomUtils.RandomInRange(rng, 2, N - 1);
while (NumberTheory.GCD(SecretKey, fi, out BigInteger x, out BigInteger y) != 1)
{
SecretKey = BigIntegerRandomUtils.RandomInRange(rng, 2, N - 1);
}
f9_textSecretKey.Text = Convert.ToString(SecretKey);
}
private void f3_buttonNextGenerator_Click(object sender, EventArgs e)
{
f3_textP.Text = new string(f3_textP.Text.Where(t => char.IsDigit(t)).ToArray());
f3_textQ.Text = new string(f3_textQ.Text.Where(t => char.IsDigit(t)).ToArray());
f3_textG.Text = new string(f3_textG.Text.Where(t => char.IsDigit(t)).ToArray());
BigInteger ParamP, ParamQ, ParamG = 0;
if (f3_textP.TextLength > 0 && f3_textQ.TextLength > 0 && RabinMiller.IsPrime(ParamP = BigInteger.Parse(f3_textP.Text), 3) &&
RabinMiller.IsPrime(ParamQ = BigInteger.Parse(f3_textQ.Text), 3))
{
RandomNumberGenerator rng = RandomNumberGenerator.Create();
while (ParamG < 2 || ParamG >= ParamP - 1 || NumberTheory.BinaryModPow(ParamG, ParamQ, ParamP) == 1)
{
ParamG = BigIntegerRandomUtils.RandomInRange(rng, 2, ParamP - 1);
}
f3_textG.Text = Convert.ToString(ParamG);
}
}
private void f3_button_GetRandomSecretB_Click(object sender, EventArgs e)
{
RandomNumberGenerator rng = RandomNumberGenerator.Create();
f3_textSecretB.Text = Convert.ToString(BigIntegerRandomUtils.RandomInRange(rng, DiffieHellman.Params.Q, DiffieHellman.Params.P));
}