public VigenereText GetVigenereText(VigenereText vText)
{
List <int> shiftVals = CipherService.GetShiftVals(vText.KeyWord);
int i = 0;
while (i < vText.PlainText.Length)
{
for (int j = 0; j < shiftVals.Count; j++)
{
if (i >= vText.PlainText.Length)
{
break;
}
else
{
vText.StrBuild.Append(CipherService.GetCipherLetter(
vText.PlainText[i],
shiftVals[j]));
}
i++;
}
}
vText.CipherText = vText.StrBuild.ToString();
return(vText);
}
public static void Index()
{
#region initialize
Initialize();
string plainTxt, keyWord;
int key;
bool isValid;
#endregion
#region input
Console.WriteLine("Enter plaintext:");
plainTxt = Console.ReadLine();
isValid = false;
key = 0;
while (!isValid)
{
Console.WriteLine("Enter a positive integer as the key for the Caesar cipher:");
var input = Console.ReadLine();
isValid = int.TryParse(input, out key) && key > 0;
}
isValid = false;
keyWord = "";
while (!isValid)
{
Console.WriteLine("Enter a key word for the Vigenere cipher:");
keyWord = Console.ReadLine();
isValid = Regex.IsMatch(keyWord, @"^[a-zA-Z]+$");;
}
#endregion
#region get ciphers
Rot13Text rot13Text = Rot13Controller.GetRot13Text(new Rot13Text(plainTxt));
CaesarText caesarText = CaesarController.GetCaesarText(new CaesarText(plainTxt, key));
VigenereText vigenereText = VigenereController.GetVigenereText(new VigenereText(plainTxt, keyWord));
#endregion
#region output
Console.WriteLine(string.Format("\nROT13:\n" + rot13Text.CipherText));
Console.WriteLine(string.Format("\nCaesar:\n" + caesarText.CipherText));
Console.WriteLine(string.Format("\nVigenere:\n" + vigenereText.CipherText));
#endregion
}