public void Generic_GenericClassical()
{
GenericClassicalCipher <int, int, int, char> cipher = new GenericClassicalCipher <int, int, int, char>();
cipher.Alphabet = Utility.EnglishAlphabet();
cipher.DiffuseFunction = diffuse;
cipher.InverseDiffuseFunction = diffuse;
char[] encrypted = cipher.Encrypt("this is a test".ToUpper().ToCharArray());
string clear = new string(cipher.Decrypt(encrypted));
Assert.AreEqual("THISISATEST", clear);
}
public char[] diffuse(char[] block, GenericClassicalCipher <int, int, int, char> cipher)
{
int alphabetLength = cipher.Alphabet.Length - 1;
StringBuilder encrypted = new StringBuilder();
foreach (char c in block)
{
if (c == ' ')
{
continue;
}
encrypted.Append(cipher.Alphabet[alphabetLength - cipher.Alphabet.IndexOf(c)]);
}
return(encrypted.ToString().ToCharArray());
}
