public string Decrypt(string encodedText)
{
var keyText = CharacterManipulation.RepeatToFill(Keyword, encodedText.Length);
return(CharacterManipulation.ShiftCharacters(Alphabet, keyText, encodedText, true));
}
public string Encrypt(string plainText)
{
var keyText = CharacterManipulation.RepeatToFill(Keyword, plainText.Length);
return(CharacterManipulation.ShiftCharacters(Alphabet, keyText, plainText, true));
}