public string SingGen(byte[] h, BigInteger d)
{
BigInteger alpha = BigInteger.Parse(SupportEDS.DecStringFromByteArray(h));
BigInteger e = alpha % this.curv.N;
if (e == 0)
{
e = 1;
}
BigInteger k = new BigInteger();
EllipticCurve_Point C = new EllipticCurve_Point();
BigInteger r = new BigInteger();
BigInteger s = new BigInteger();
do
{
Random rnd = new Random();
do
{
k = Maths.RandBigInteger(Maths.Length(this.curv.N), rnd);
}while ((k < 0) || (k > this.curv.N));
curv.Mult(k, this.curv.G, ref C);
r = C.X % this.curv.N;
s = ((r * d) + (k * e)) % this.curv.N;
}while ((r == 0) || (s == 0));
int midl = Maths.Length(this.curv.N) / 4;
string Rvector = SupportEDS.Add0PaddingToString(r.ToString("X"), midl);
string Svector = SupportEDS.Add0PaddingToString(s.ToString("X"), midl);
return(Rvector + Svector);
}
private void Gen_textbox_b_GenButtonClick(object sender, RoutedEventArgs e)
{
if (gen_textbox_b.down_textbox.Text != "" && gen_textbox_b.down_textbox.Text != "0")
{
int bits = Convert.ToInt32(gen_textbox_b.down_textbox.Text);
BigInteger rand_b = Maths.RandBigInteger(bits, new Random());
gen_textbox_b.value_textbox.Text = rand_b.ToString();
}
}
public BigInteger GenPrivateKey(int BitSize)
{
BigInteger d = new BigInteger();
Random rnd = new Random();
do
{
d = Maths.RandBigInteger(BitSize, rnd);
}while ((d < 0) || (d > this.curv.N));
return(d);
}
private void BeginRandomGeneration()
{
int bits = Convert.ToInt32(this.complexity_rand_scheme.Text);
Random rnd = new Random();
BigInteger p = Maths.genPseudoPrime(bits, rnd);
gen_textbox_p.value_textbox.Text = p.ToString();
BigInteger a = Maths.RandBigInteger(bits, rnd);
gen_textbox_a.value_textbox.Text = a.ToString();
BigInteger b = Maths.RandBigInteger(bits, rnd);
gen_textbox_b.value_textbox.Text = b.ToString();
bw = new BackgroundWorker();
algo = new Schoof(1, a, b, p, bw);
bw.WorkerSupportsCancellation = true;
bw.DoWork += new DoWorkEventHandler(Bw_DoWork);
bw.RunWorkerCompleted += new RunWorkerCompletedEventHandler(Bw_RunWorkerCompletedRand);
this.schoof_stop_button.Visibility = Visibility.Visible;
this.schoof_value.Text = "";
bw.RunWorkerAsync();
}
