private void InputToOutput(Encoding encode)
{
otp = OneTimePadAlgorithm.Create();
otp.setInputLength(txtInput.Text.Length);
if (rbEncrypt.Checked)
{
bool isNumeric = int.TryParse(txtSeed.Text, out _);
if (isNumeric)
{
otp.setStringSeed(int.Parse(txtSeed.Text));
}
else
{
otp.setStringSeed(txtSeed.Text);
}
otp.GenerateKey();
CryptoTransform ict = (CryptoTransform)otp.CreateEncryptor(otp.Key, null);
byte[] inputText = encode.GetBytes(txtInput.Text);
txtOTP.Text = encode.GetString(otp.Key);
txtOutput.Text = encode.GetString(ict.TransformFinalBlock(inputText, 0, txtInput.Text.Length));
}
else
{
otp.Key = encode.GetBytes(txtOTP.Text);
CryptoTransform ict = (CryptoTransform)otp.CreateDecryptor(otp.Key, null);
byte[] inputText = encode.GetBytes(txtInput.Text);
txtOutput.Text = encode.GetString(ict.TransformFinalBlock(inputText, 0, txtInput.Text.Length));
}
}
public override byte[] TransformFinal(byte[] input)
{
return(CryptoTransform.TransformFinalBlock(input, 0, input.Length));
}