public static char[] ConvertUserInput(bool encryption, char[] base64Key, char[] password)
{
try
{
NullChecks.CharArray(base64Key);
NullChecks.CharArray(password);
char[] message;
byte[] key = Convert.FromBase64CharArray(base64Key, 0, base64Key.Length);
if (encryption == true)
{
byte[] plaintext = Encoding.UTF8.GetBytes(password);
message = EncryptPassword(plaintext, key);
Utilities.ZeroArray(plaintext);
}
else
{
byte[] ciphertext = Convert.FromBase64CharArray(password, 0, password.Length);
message = DecryptPassword(ciphertext, key);
Utilities.ZeroArray(ciphertext);
}
Utilities.ZeroArray(key);
return(message);
}
catch (Exception ex) when(ex is FormatException || ex is EncoderFallbackException)
{
DisplayMessage.ErrorMessageBox(ex.GetType().Name, "Invalid key or password format.");
return(Array.Empty <char>());
}
}