public void RailFenceTestDec2()
{
RailFence algorithm = new RailFence();
string plain1 = algorithm.Decrypt(mainCipher2, mainKey2);
string plain2 = algorithm.Decrypt(mainCipher3, mainKey2);
Assert.IsTrue(plain1.Equals(mainPlain1, StringComparison.InvariantCultureIgnoreCase) ||
plain2.Equals(mainPlain2, StringComparison.InvariantCultureIgnoreCase));
}
public void RailFenceTestNewDec()
{
RailFence algorithm = new RailFence();
string plain = algorithm.Decrypt(newCipher, newkey);
Assert.IsTrue(plain.Equals(newPlain, StringComparison.InvariantCultureIgnoreCase));
}
public void DecryptBasic()
{
RailFence rf4 = new RailFence(4);
var output = rf4.Decrypt("DTTEDHSWFNEAALEEL");
Assert.AreEqual(BasicText, output);
}
public void RailFenceTestDec1()
{
RailFence algorithm = new RailFence();
string plain = algorithm.Decrypt(mainCipher, mainKey);
Assert.IsTrue(plain.Equals(mainPlain1, StringComparison.InvariantCultureIgnoreCase));
}
public void Unigraph_RailFenceTest()
{
RailFence railfence = new RailFence(Utility.KeyedEnglishAlphabet("KRYPTOS"));
cipher = "";
clear = "";
generated = "";
byte[] tokenData = new byte[2];
using (System.Security.Cryptography.RandomNumberGenerator rng = new System.Security.Cryptography.RNGCryptoServiceProvider())
{
rng.GetBytes(tokenData);
railfence.Key = (int)(BitConverter.ToUInt16(tokenData, 0) >> 8);
for (int i = 0; i < 25; i++)
{
generated = railfence.GenerateRandomString();
cipher = railfence.Encrypt(generated);
clear = railfence.Decrypt(cipher);
Assert.AreEqual(generated, clear);
}
}
}
/// <summary>
/// Performs one of the possible actions: encrypts or decrypts data.
/// </summary>
/// <param name="text">Data to be encrypted / decrypted.</param>
/// <param name="key">The key for the encryption / decryption algorithm.</param>
/// <param name="typeOfChiper">The name of the encryption / decryption algorithm.</param>
/// <param name="action">Action to be taken (encrypt / decrypt).</param>
/// <returns>The result of encryption / decryption.</returns>
private static string PerformAction(string text, string key,
TypesOfCiphers typeOfChiper, Model.Ciphers.Action action)
{
switch (typeOfChiper)
{
case TypesOfCiphers.RailFence:
RailFence railFence = new RailFence();
if (action == Model.Ciphers.Action.Encrypt)
{
return(railFence.Encrypt(text, key));
}
else
{
return(railFence.Decrypt(text, key));
}
case TypesOfCiphers.RotatingSquare:
RotatingGrill rotatingSquare = new RotatingGrill();
if (action == Model.Ciphers.Action.Encrypt)
{
return(rotatingSquare.Encrypt(text));
}
else
{
return(rotatingSquare.Decrypt(text));
}
case TypesOfCiphers.Vigenere:
Vigenere vigener = new Vigenere();
if (action == Model.Ciphers.Action.Encrypt)
{
try
{
return(vigener.Encrypt(text, key));
}
catch (DivideByZeroException)
{
return(text);
}
}
else
{
try
{
return(vigener.Decrypt(text, key));
}
catch (DivideByZeroException)
{
return(text);
}
}
default:
return(null);
}
}
public void ReturnsUnchangedWordForVeryLongKeyDecryption()
{
string input = "Dsadajkaajddjh";
RailFence railFence = new RailFence(100);
string decrypted = railFence.Decrypt(input);
Assert.AreEqual(input, decrypted);
}
public void ReturnsInitialWordAfterBothDecryptionAndEncryption()
{
string input = "CRYPTOGRAPHY";
RailFence railFence = new RailFence(3);
string res = railFence.Decrypt(input);
string encrypted = railFence.Encrypt(res);
Assert.AreEqual(encrypted, input);
}
public void ReturnsDecryptedWordForKeyShorterThanWord()
{
string input = "CTARPORPYYGH";
string expected = "CRYPTOGRAPHY";
RailFence railFence = new RailFence(3);
string decrypted = railFence.Decrypt(input);
Assert.AreEqual(decrypted, expected);
}
private void RailDecrypt_Click(object sender, EventArgs e)
{
RailFence railfence = new RailFence();
string res = "";
if (RailKey.Text != null)
{
res = railfence.Decrypt(CipherText.Text, int.Parse(RailKey.Text));
}
else
{
MessageBox.Show("enter key value");
}
PlainText.Text = res;
}
private void RailFenceDecode(object sender, RoutedEventArgs e)
{
RailFence algorithm = new RailFence();
string value = RailFenceDecodeInput.Text;
int key;
try
{
key = Int32.Parse(RailFenceDecodeKeyInput.Text);
}
catch (Exception ex)
{
MessageBox.Show("Podano złą wagę", "Zła waga", MessageBoxButton.OK, MessageBoxImage.Error);
return;
}
RailFenceDecodeOutput.Text = algorithm.Decrypt(value, key);
}
private void encryptDecryptPressed(object sender, RoutedEventArgs e)
{
string buttonName = ((Button)sender).Name;
string userInput = mTextBox.Text.ToString();
string userKey = keyTextBox.Text.ToString();
string encrypted = "";
string decrypted = "";
bool normalDialog = true;
switch (currentAlgorithm)
{
case "RAIL_FENCE":
if (mTextBox.Text == "")
{
MessageBox.Show("Rail fence text input is empty. Please type in something.");
return;
}
if (validateRailfenceFields(keyTextBox.Text.ToString()))
{
int i = int.Parse(userKey);
rf = new RailFence(i);
encrypted = rf.Encrypt(userInput);
decrypted = rf.Decrypt(userInput);
}
break;
case "COLUMNAR_TRANSP":
if (mTextBox.Text == "")
{
MessageBox.Show("Columanr transp text input is empty. Please type in something.");
return;
}
int[] inputTab = parseColumnarTranspKey(userKey);
if (validateColumnarTranspkey(inputTab))
{
ct = new ColumnarTransposition(parseColumnarTranspKey(userKey));
encrypted = ct.Encrypt(userInput);
decrypted = ct.Decrypt(userInput);
}
else
{
return;
}
break;
case "MATRIX_TRANSP":
if (mTextBox.Text == "")
{
MessageBox.Show("Matrix transp text input is empty. Please type in something.");
return;
}
if (validateMatrixTransp(userKey))
{
mt = new MatrixTransp(parseMatrixTranspKey(userKey));
encrypted = mt.Encrypt(userInput);
decrypted = mt.Decrypt(userInput);
}
else
{
return;
}
break;
case "COLUMNAR_C":
if (mTextBox.Text == "")
{
MessageBox.Show("Matrix transp version C text input is empty. Please type in something.");
return;
}
if (validateMatrixTranspVerCKey(userKey) && validateMatrixTranspVerCWord(userInput))
{
ctc = new ColumnarTranspositionC(userKey);
encrypted = ctc.Encrypt(userInput);
decrypted = ctc.Decrypt(userInput);
}
else
{
return;
}
break;
case "ViGENERE":
if (mTextBox.Text == "")
{
MessageBox.Show("Winegret text input is empty. Please type in something.");
return;
}
if (validateVinegretKey(userKey) && validateVinegretWord(userInput))
{
vig = new Vigenere(userKey);
encrypted = vig.Encrypt(userInput);
decrypted = vig.Decrypt(userInput);
}
else
{
return;
}
break;
case "CEZAR":
if (mTextBox.Text == "")
{
MessageBox.Show("Cezar text input is empty. Please type in something.");
return;
}
if (validateCezarKey(userKey) && validateCezarWord(userInput))
{
int i = int.Parse(userKey);
cz = new Cezar(i);
encrypted = cz.Encrypt(userInput);
decrypted = cz.Decrypt(userInput);
}
else
{
return;
}
break;
case "SYNC":
if (syncFileName.Content.ToString() == " ")
{
MessageBox.Show("SYNC file input is empty. Please type in something.");
return;
}
if (keyTextBox.Text == "")
{
MessageBox.Show("SYNC key text input is empty. Please type in something.");
return;
}
if (!syncKeyGenerated)
{
MessageBox.Show("SYNC key needs to be generated first, please press run and then stop button before proceeding.");
return;
}
normalDialog = false;
synchronousStreamCipher = new SynchronousStreamCipher(lsfrGen.GetSequence());
TextWriter tw = new StreamWriter("LFSR KEY USED.txt");
List <bool> listOfBools = lsfrGen.GetSequence();
char boolOutcome = ' ';
string boolOutcomeCollection = "";
int ij = 0;
foreach (bool b in listOfBools)
{
if (b == true)
{
boolOutcome = '1';
}
else
{
boolOutcome = '0';
}
boolOutcomeCollection += boolOutcome;
ij++;
if (ij > 100)
{
ij = 0;
tw.WriteLine(boolOutcomeCollection);
boolOutcomeCollection = "";
}
}
tw.WriteLine(boolOutcomeCollection);
tw.Close();
if (buttonName == "encrypt")
{
synchronousStreamCipher.Encrypt(syncFileName.Content.ToString());
}
else
{
synchronousStreamCipher.Decrypt(syncFileName.Content.ToString());
}
MessageBox.Show("Encrypted/decrypted file is located in folder where your .exe file is ( most probably bin/debug ). You will also find text file that contains LFSR key in it there.");
break;
case "DES":
if (syncFileName.Content.ToString() == " ")
{
MessageBox.Show("DES file input is empty. Please type in something.");
return;
}
if (keyTextBox.Text == "")
{
MessageBox.Show("DES key text input is empty. Please type in something.");
return;
}
if (!validateDesKey(userKey))
{
return;
}
des = new DES(desKeyParsing(userKey));
if (buttonName == "encrypt")
{
des.EncryptFile(syncFileName.Content.ToString());
}
else
{
des.DecryptFile(syncFileName.Content.ToString());
}
MessageBox.Show("Encrypted/decrypted file is located in folder where your .exe file is ( most probably bin/debug ).");
break;
default:
break;
}
int length = encrypted.Length;
outcomeLabel.FontSize = 30;
if (length > 10)
{
outcomeLabel.FontSize = 20;
}
if (length > 20)
{
outcomeLabel.FontSize = 15;
}
if (normalDialog)
{
if (buttonName == "encrypt")
{
if (encrypted != "")
{
outcomeTypeLabel.Content = "Encrypted:";
}
outcomeLabel.Content = encrypted;
}
else
{
if (decrypted != "")
{
outcomeTypeLabel.Content = "Decrypted:";
}
outcomeLabel.Content = decrypted;
}
}
else
{
}
}
public void RailfenceDecode(string input, int key, string output)
{
var result = railFence.Decrypt(input, key);
Assert.AreEqual(output, result);
}
private void RailFenceDecrypt_Click(object sender, EventArgs e)
{
RailFenceOutput.Text = RailFence.Decrypt(RailFenceInput.Text, Convert.ToInt32(Rails.Value));
}
private void button3_Click(object sender, EventArgs e)
{
if (comboBox1.Text.Contains("Ceaser"))
{
Ceaser c = new Ceaser();
string Res = c.Decrypt(textBox2.Text.ToString(), int.Parse(textBox3.Text.ToString()));
textBox4.Text = Res;
}
else if (comboBox1.Text.Contains("Monoalphabetic"))
{
Monoalphabetic c = new Monoalphabetic();
string Res = c.Decrypt(textBox2.Text.ToString(), textBox3.Text.ToString());
textBox4.Text = Res;
}
else if (comboBox1.Text.Contains("Columnar"))
{
Columnar c = new Columnar();
List <int> key = new List <int>();
for (int i = 0; i < textBox3.Text.Length; i++)
{
key.Add(int.Parse(textBox3.Text[i].ToString()));
}
string Res = c.Decrypt(textBox2.Text.ToString(), key);
textBox4.Text = Res;
}
else if (comboBox1.Text.Contains("HillCipher"))
{
HillCipher c = new HillCipher();
List <int> key1 = new List <int>();
List <int> Plaintext1 = new List <int>();
string Res = "";
List <int> ResDig = new List <int>();
if (char.IsDigit(textBox3.Text[0]) && char.IsDigit(textBox1.Text[0]))
{
for (int i = 0; i < textBox2.Text.Length; i++)
{
Plaintext1.Add(int.Parse(textBox2.Text[i].ToString()));
}
for (int i = 0; i < textBox3.Text.Length; i++)
{
key1.Add(int.Parse(textBox3.Text[i].ToString()));
}
ResDig = c.Decrypt(Plaintext1, key1);
textBox4.Text = ResDig.ToString();
}
else
{
Res = c.Decrypt(textBox2.Text.ToString(), textBox3.Text.ToString());
textBox4.Text = Res;
}
}
else if (comboBox1.Text.Contains("PlayFair"))
{
PlayFair c = new PlayFair();
string Res = c.Decrypt(textBox2.Text.ToString(), textBox3.Text.ToString());
textBox4.Text = Res;
}
else if (comboBox1.Text.Contains("RailFence"))
{
RailFence c = new RailFence();
string Res = c.Decrypt(textBox2.Text.ToString(), int.Parse(textBox3.Text.ToString()));
textBox4.Text = Res;
}
else if (comboBox1.Text.Contains("RepeatingKeyVigenere"))
{
RepeatingkeyVigenere c = new RepeatingkeyVigenere();
string Res = c.Decrypt(textBox2.Text.ToString(), textBox3.Text.ToString());
textBox4.Text = Res;
}
else if (comboBox1.Text.Contains("AutokeyVigenere"))
{
AutokeyVigenere c = new AutokeyVigenere();
string Res = c.Decrypt(textBox2.Text.ToString(), textBox3.Text.ToString());
textBox4.Text = Res;
}
else if (comboBox1.Text.Contains("RSA"))
{
RSA c = new RSA();
string s = textBox1.Text.ToString();
string[] str = s.Split(' ');
int p = int.Parse(str[0]);
int q = int.Parse(str[1]);
int M = int.Parse(str[2]);
int ee = int.Parse(str[3]);
int Res = c.Decrypt(p, q, M, ee);
textBox4.Text = Res.ToString();
}
else if (comboBox1.Text.Contains("AES"))
{
AES c = new AES();
string Res = c.Decrypt(textBox2.Text.ToString(), textBox3.Text.ToString());
textBox4.Text = Res;
}
}