public void Security_Cryptography_CaesarEncryptor()
{
var TestItem = new CaesarEncryptor();
var encryptedString = TestItem.Encrypt("Test");
Assert.IsTrue(encryptedString == "bQB%2BAIwAjQA%3D");
var decryptedString = TestItem.Decrypt(encryptedString);
Assert.IsTrue(decryptedString == "Test");
}
private void cryptanalysisButton_Click(object sender, EventArgs e)
{
ExpandForm(ExpandedFormHeight);
var sb = new StringBuilder();
for (var i = 0; i < alphTextBox.TextLength; i++)
{
var encryptor = new CaesarEncryptor(alphTextBox.Text, i);
sb.Append("Shift: " + i + " Text: " + encryptor.Decrypt(resultEncText.Text) + "\n");
}
cryptanalysisResultRichTextBox.Text = sb.ToString();
}
private void Encrypt(string alph, int shift)
{
ExpandForm(NormalFormHeight);
string text = inputText.Text;
var encryptor = new CaesarEncryptor(alph, shift);
try
{
resultEncText.Text = encryptor.Encrypt(text);
resultDecText.Text = encryptor.Decrypt(resultEncText.Text);
}
catch (KeyNotFoundException)
{
MessageBox.Show(
Resources.MainForm_Encrypt_Some_letters_aren_t_from_the_current_alphabet,
Resources.MainForm_Encrypt_Wrong_text,
MessageBoxButtons.OK,
MessageBoxIcon.Warning);
}
}
private void shiftNumericUpDown_ValueChanged(object sender, EventArgs e)
{
ExpandForm(NormalFormHeight);
enAlphTextBox.Text = CaesarEncryptor.GetEncryptedAlph(alphTextBox.Text, (int)shiftNumericUpDown.Value);
}
private void alphComboBox_SelectedIndexChanged(object sender, EventArgs e)
{
ExpandForm(NormalFormHeight);
alphTextBox.Text = alphComboBox.SelectedIndex == 0 ? AlphEng : AlphRus;
enAlphTextBox.Text = CaesarEncryptor.GetEncryptedAlph(alphTextBox.Text, (int)shiftNumericUpDown.Value);
}
