void GetTab2Ready()
{
// Finite Field
F3 = new FiniteField(3);
// LFSR 1 - 3
string strf1 = "201", stri1 = "001";
Polynomial feedback1 = Polynomial.Parse(F3, strf1, false);
Polynomial initial1 = Polynomial.Parse(F3, stri1, false);
L1 = new LFSR(feedback1, initial1.Coefficients);
Tab2lblLFSR1.Text += "\r\n" + "Feedback: " + Polynomial.Parse(F3, "1" + strf1, false).ToString() + "\r\nInitial: " + stri1 + "\r\nPeriod = " + L1.Period;
// LFSR 2 - 4
string strf2 = "2001", stri2 = "0001";
Polynomial feedback2 = Polynomial.Parse(F3, strf2, false);
Polynomial initial2 = Polynomial.Parse(F3, stri2, false);
L2 = new LFSR(feedback2, initial2.Coefficients);
Tab2lblLFSR2.Text += "\r\n" + "Feedback: " + Polynomial.Parse(F3, "2" + strf2, false).ToString() + "\r\nInitial: " + stri2 + "\r\nPeriod = " + L2.Period;
// LFSR 3 - 5
string strf3 = "20001", stri3 = "00001";
Polynomial feedback3 = Polynomial.Parse(F3, strf3, false);
Polynomial initial3 = Polynomial.Parse(F3, stri3, false);
L3 = new LFSR(feedback3, initial3.Coefficients);
Tab2lblLFSR3.Text += "\r\n" + "Feedback: " + Polynomial.Parse(F3, "1" + strf3, false).ToString() + "\r\nInitial: " + stri3 + "\r\nPeriod = " + L3.Period;
// LFSR 4 - 7
string strf4 = "0000201", stri4 = "1012220";
Polynomial feedback4 = Polynomial.Parse(F3, strf4, false);
Polynomial initial4 = Polynomial.Parse(F3, stri4, false);
L4 = new LFSR(feedback4, initial4.Coefficients);
Tab2lblLFSR4.Text += "\r\n" + "Feedback: " + Polynomial.Parse(F3, "1" + strf4, false).ToString() + "\r\nInitial: " + stri4 + "\r\nPeriod = 26 (precomputed)";// +L4.Period;
// Nonlinear Combiner
NonlinCombOutput = "";
Tab2lblNonLinComb.Text += "\r\n(X1+X3) * (X2+X4)";
}
private void btnFixValues_Click(object sender, EventArgs e)
{
if (btnFixField.Enabled)
{
MessageBox.Show("First fix the field!", this.Text, MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
return;
}
string poly = "1" + string.Join("", txtFeedback.Text.Reverse());
Polynomial feedback = Polynomial.Parse(F, txtFeedback.Text,false);
lblFeedback.Text = "Feedback Polynomial: " + Polynomial.Parse(F, poly,false).ToString();
Polynomial initial = Polynomial.Parse(F, txtInitial.Text.Trim(),false);
lblInitial.Text = "Initial State: " + initial.ToString();
lfsr = new LFSR(feedback, initial.Coefficients);
txtOutput.Text = ""; // txtInitial.Text.Trim();
lblSeqSize.Text = "Ready";
btnGenSeq.Enabled = true;
btnFindPeriod.Enabled = true;
btnFixValues.Enabled = false;
}