private void buttonDecrypt_Click(object sender, EventArgs e)
{
if (txtClearText.Text == "")
{
MessageBox.Show("Enter the encrypted text you want to decrypt", "Encrypted Text Field Empty !");
}
else
{
try
{
string cipherText = txtClearText.Text.Trim();
string cipherText1 = cipherText.Replace("kL$", "=");
string cipherText2 = cipherText1.Replace("R+rE", "+");
string cipherText3 = cipherText2.Replace("nJ/G", "/");
string cipherText4 = CipherAlgo.Decrypt(cipherText3, true);
labelTemp1.Text = cipherText4;
string decryptedText = CipherAlgo.Decrypt(labelTemp1.Text, true);
txtCipherText.Text = decryptedText;
}
catch (Exception)
{
MessageBox.Show("Invalid Encrypted text");
}
}
}
private void buttonEncrypt_Click(object sender, EventArgs e)
{
if (txtClearText.Text == "")
{
MessageBox.Show("Enter the plain text you want to encrypt", "Plain Text Field Empty !");
}
else
{
try
{
string clearText = txtClearText.Text.Trim();
string cipherText = CipherAlgo.Encrypt(clearText, true);
labelTemp1.Text = cipherText;
string cipherText1 = CipherAlgo.Encrypt(labelTemp1.Text, true);
string cipherText2 = cipherText1.Replace("=", " kL$ ");
string cipherText3 = cipherText2.Replace("+", " R+rE ");
string cipherText4 = cipherText3.Replace("/", " nJ/G ");
string cipherText5 = cipherText4.Replace(" ", "");
txtCipherText.Text = cipherText5;
}
catch (Exception)
{
MessageBox.Show("Invalid text entered");
}
}
}
