public void runEncrypt(char key, bool encrypt)
{
outputTextBox.Text = CaesarAndVigenere.caesarText(ciphertext, key, encrypt);
caesarShiftLetterBox.Text = key.ToString();
decryptRB.Checked = !encrypt;
encryptRB.Checked = encrypt;
}
private void findScores()
{
int keyLength = Int32.Parse(keyLengthTextBox.Text);
//List<double[]> keyLetters = new List<double[]>();
string[] textColumns = CaesarAndVigenere.vigenereColumnSeparator(parent.ciphertext, keyLength);
for (int x = 0; x < keyLength; x++)
{
DataTable dt = new DataTable();
dt.Columns.Add("Letter", typeof(char));
dt.Columns.Add("Chi-squared score", typeof(double));
dt.Columns[0].ReadOnly = true;
dt.Columns[1].ReadOnly = true;
for (int i = 0; i < 26; i++)
{
DataRow dr = dt.NewRow();
dr[0] = (char)(i + 65);
dr[1] = CaesarAndVigenere.chiSquaredScore(CaesarAndVigenere.caesarText(textColumns[x], CaesarAndVigenere.ALPHABET[i], false));
dt.Rows.Add(dr);
}
dataGrids[x].DataSource = null;
dataGrids[x].Columns.Clear();
dataGrids[x].DataSource = dt;
dataGrids[x].Sort(dataGrids[x].Columns[1], ListSortDirection.Ascending);
DataGridViewCheckBoxColumn cbc = new DataGridViewCheckBoxColumn();
dataGrids[x].Columns.Add(cbc);
cbc.HeaderText = "Check letter";
cbc.Name = "checkBoxes";
cbc.Width = 75;
cbc.ReadOnly = false;
}
checkTopWithin20();
//solveForKeys();
}
private void updateChart()
{
//chart1.Series["Actual Frequencies"].Points.DataBindY(CaesarAndVigenere.ALPHABET.ToArray());
chart1.Series["English Frequencies"].Enabled = false;
chart1.Series["Actual Frequencies"].Enabled = false;
chart1.Series["Frequencies of Caesar Decryption"].Enabled = false;
string text = CaesarAndVigenere.stripText(parent.ciphertext);
if (text.Length == 0)
{
return;
}
if (expectedFreqsCheckBox.Checked)
{
chart1.Series["English Frequencies"].Enabled = true;
double[] percentageScores = CaesarAndVigenere.ENGLISH_FREQUENCIES.Select(x => 100.0 * x).ToArray();
chart1.Series["English Frequencies"].Points.DataBindY(percentageScores);
}
if (userCaesarShiftCheckBox.Checked)
{
if (!invalidKeyLabel.Visible)
{
chart1.Series["Frequencies of Caesar Decryption"].Enabled = true;
double textLength = text.Length;
int[] scores = CaesarAndVigenere.letterFrequencyAnalyser(CaesarAndVigenere.caesarText(text, caesarShiftLetterBox.Text[0], false));
double[] percentageScores = scores.Select(x => 100.0 * x / textLength).ToArray();
chart1.Series["Frequencies of Caesar Decryption"].Points.DataBindY(percentageScores);
}
}
else
{
chart1.Series["Actual Frequencies"].Enabled = true;
double textLength = text.Length;
int[] scores = CaesarAndVigenere.letterFrequencyAnalyser(text);
double[] percentageScores = scores.Select(x => 100.0 * x / textLength).ToArray();
chart1.Series["Actual Frequencies"].Points.DataBindY(percentageScores);
}
}