public void Analysis_InvalidKeyLength_Throws_ArgumentException()
{
// Arrange
int[] message = new int[1];
XORDecryption xorDecryption = new XORDecryption();
// Acct
int[] key = xorDecryption.Analysis(message, 0);
}
public void Analysis_EmptyMessage_BlankKey()
{
// Arrange
int[] message = new int[1];
XORDecryption xorDecryption = new XORDecryption();
// Act
int[] actual = xorDecryption.Analysis(message, 3);
// Assert
Assert.AreEqual(actual[0], 32);
}
static void Main(string[] args)
{
Stopwatch clock = Stopwatch.StartNew();
string path = Path.GetDirectoryName(Assembly.GetEntryAssembly().Location);
string filename = path + "\\cypher.txt";
if (File.Exists(filename))
{
try
{
var messageText = File.ReadAllText(filename);
int[] message = messageText.Split(',').Select(int.Parse).ToArray();
XORDecryption xorDecryption = new XORDecryption();
int[] key = xorDecryption.Analysis(message, keyLength);
int[] decryptedMessage = xorDecryption.Decrypt(message, key);
int result = decryptedMessage.Sum();
clock.Stop();
Console.WriteLine(" XOR decryption: https://projecteuler.net/problem=59 ");
Console.WriteLine(" File: " + filename);
Console.WriteLine(" Max Total: " + result);
Console.WriteLine(" Time Taken: " + clock.ElapsedMilliseconds + " milliseconds");
if (args.Length > 0)
{
Console.WriteLine("Decrypted Message: ");
for (int index = 0; index < decryptedMessage.Length; index++)
{
Console.Write(Convert.ToChar(decryptedMessage[index]));
}
}
}
catch (Exception ex)
{
Trace.WriteLine("Error occured while decrypting. File: " + filename);
Trace.WriteLine("Exception Message: " + ex.Message);
Trace.WriteLine("Stack Trace: " + ex.StackTrace);
Console.WriteLine("Error occured while decrypting. File: " + filename);
}
}
else
{
Console.WriteLine("File not found. " + filename);
}
Console.ReadLine();
}
