Beispiel #1
0
        static void ExperimentTextLength(StreamWriter streamWriter)
        {
            streamWriter.WriteLine("KeyLength;TextLength;Probability");
            foreach (var keyLength in KEY_LENGTHS)
            {
                for (int i = 250; i <= 3000; i += 250)
                {
                    var correct = 0.0;

                    for (int j = 0; j < N; ++j)
                    {
                        var key  = _keyGenerator.GetKey(keyLength);
                        var text = _textGenerator.GetText(i);

                        var encryptedText = _vigenereEncryption.Encrypt(text, key);
                        var guess         = _vigenereBreaker.BreakCipher(encryptedText);

                        if (guess.ToUpper() == key.ToUpper())
                        {
                            ++correct;
                        }
                    }

                    streamWriter.WriteLine($"{keyLength};{i};{correct / N}");
                    Console.WriteLine($"{keyLength};{i};{correct / N}");
                }
            }
        }
        public void EncryptMultipleStringsTest()
        {
            List <string> textToEncrypt = new List <string>()
            {
                "ATTACKATDAWN",
                "ATTACKATDAWN",
                "ATTACKATDAWN"
            };
            string        key      = "LEMON";
            List <string> expected = new List <string>()
            {
                "LXFOPVEFRNHR",
                "LXFOPVEFRNHR",
                "LXFOPVEFRNHR"
            };
            IEnumerable <string> result = _encryptor.Encrypt(textToEncrypt.AsEnumerable(), key);

            Assert.AreEqual(expected, result);
        }