private void Cipher_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
EncodedText.Clear();
DecodedText.Clear();
tbTextfromDecrHash.Clear();
tbKey.Clear();
if (Cipher.SelectedIndex == 0 || Cipher.SelectedIndex == 2)
{
tbKey.IsHitTestVisible = true;
}
else
{
tbKey.IsHitTestVisible = false;
tbKey.Clear();
}
}
private void EncodeText(object sender, RoutedEventArgs e)
{
// Caesar cipher encode
if (Cipher.Text == "Caesar cipher" && tbKey.Text != "")
{
lbDecText.Content = " Your Decoded text";
Decode.Content = "Decode";
key = Convert.ToInt32(tbKey.Text);
if (EncodedText.Text != "")
{
EncodedText.Clear();
}
try
{
foreach (var item in charsToRemove)
{
YourText.Text = YourText.Text.Replace(item, string.Empty);
}
char[] text = YourText.Text.ToCharArray().Where(s => !char.IsWhiteSpace(s)).ToArray();
for (int i = 0; i < text.Length; i++)
{
for (int j = 0; j <= alphabet.Length && j <= alphabetUpper.Length; j++)
{
if (text[i].ToString() == alphabet[j].ToString() || text[i].ToString() == alphabetUpper[j].ToString())
{
char.ToLower(text[i]);
EncodedText.Text += Convert.ToChar(alphabet[(j + key) % alphabet.Length]);
break;
}
}
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
// HASHFUNC encode
if (Cipher.Text == "HashFunc")
{
lbDecText.Content = " Comparable hash";
Decode.Content = "Check!";
string text = YourText.Text;
if (string.IsNullOrEmpty(text))
{
text = string.Empty;
}
using (System.Security.Cryptography.SHA512Managed sha = new System.Security.Cryptography.SHA512Managed())
{
byte[] textData = Encoding.Default.GetBytes(text);
byte[] hash = sha.ComputeHash(textData);
EncodedText.Text = BitConverter.ToString(hash).Replace("-", string.Empty);
}
current = EncodedText.Text;
}
// Vigenere cipher encode
if (Cipher.Text == "Vigenere cipher")
{
lbDecText.Content = " Your Decoded text";
Decode.Content = "Decode";
if (EncodedText.Text != "")
{
EncodedText.Clear();
}
foreach (var item in charsToRemove)
{
YourText.Text = YourText.Text.Replace(item, string.Empty);
}
char[] text = YourText.Text.ToCharArray().Where(s => !char.IsWhiteSpace(s)).ToArray();
char[] key = tbKey.Text.ToCharArray();
try
{
char[,] Vigenere_Table = new char[26, 26];
int temp = 0;
for (int i = 0; i < alphabet.Length; i++)
{
for (int j = 0; j < 26; j++)
{
temp = j + i;
if (temp >= 26)
{
temp = temp % 26;
}
Vigenere_Table[i, j] = alphabet[temp];
}
}
for (int t = 0, k = 0; t < text.Length || k < key.Length; t++, k++)
{
if (t >= text.Length)
{
break;
}
if (k == key.Length /*t % key.Length == 0*/)
{
k = 0;
for (int y = 0; y <= alphabet.Length; y++)
{
if (text[t].ToString() == alphabet[y].ToString())
{
Ytext = y;
for (int x = 0; x <= alphabet.Length; x++)
{
if (key[k].ToString() == alphabet[x].ToString())
{
Xkey = x;
EncodedText.Text += Vigenere_Table[Ytext, Xkey].ToString();
break;
}
}
break;
}
}
}
else
{
for (int y = 0; y <= alphabet.Length; y++)
{
if (text[t].ToString() == alphabet[y].ToString())
{
Ytext = y;
for (int x = 0; x <= alphabet.Length; x++)
{
if (key[k].ToString() == alphabet[x].ToString())
{
Xkey = x;
EncodedText.Text += Vigenere_Table[Ytext, Xkey].ToString();
break;
}
}
break;
}
}
}
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
}