public void Kuznyechik()
{
Kuznyechik cipher = new Kuznyechik();
cipher.SetKey(_ref_key);
CollectionAssert.AreEqual(_ref_cipher, cipher.Encrypt(_ref_plain));
}
private void textBoxPlaintext_TextChanged(object sender, TextChangedEventArgs e)
{
if (encryptMode != true)
{
return;
}
int x = textBoxPlaintext.SelectionStart;
textBoxPlaintext.Text = textBoxPlaintext.Text.ToUpper();
textBoxPlaintext.SelectionStart = x;
if ((textBoxPlaintext != null && textBoxPlaintext.Text.Length == 32) && (textBoxKey != null && textBoxKey.Text.Length == 64))
{
if (XBoxVisualization.IsActive() == true)
{
XBoxVisualization.DeleteContent(mainWindow);
}
if (SBoxVisualization.IsActive() == true)
{
SBoxVisualization.DeleteContent(mainWindow);
}
if (LBoxVisualization.IsActive() == true)
{
LBoxVisualization.DeleteContent(mainWindow);
}
if (Reversed_LBoxVisualization.IsActive() == true)
{
Reversed_LBoxVisualization.DeleteContent(mainWindow);
}
k = new Kuznyechik(textBoxPlaintext.Text, textBoxKey.Text, "");
textBoxCiphertext.Text = k.ToString();
EncryptBox.DeleteContent(mainWindow);
EncryptBox.GenerateContent(mainWindow, k);
}
}
private void changeMode_Click(object sender, RoutedEventArgs e)
{
if (XBoxVisualization.IsActive() == true)
{
XBoxVisualization.DeleteContent(mainWindow);
}
if (SBoxVisualization.IsActive() == true)
{
SBoxVisualization.DeleteContent(mainWindow);
}
if (LBoxVisualization.IsActive() == true)
{
LBoxVisualization.DeleteContent(mainWindow);
}
if (Reversed_LBoxVisualization.IsActive() == true)
{
Reversed_LBoxVisualization.DeleteContent(mainWindow);
}
object wantedNode = mainWindow.FindName("cryptTab");
TabItem cryptTab = wantedNode as TabItem;
wantedNode = mainWindow.FindName("encryptArrow");
Polygon encryptArrow = wantedNode as Polygon;
wantedNode = mainWindow.FindName("decryptArrow");
Polygon decryptArrow = wantedNode as Polygon;
if (encryptMode == true)
{
encryptMode = false;
k = new Kuznyechik("", textBoxKey.Text, textBoxCiphertext.Text);
cryptTab.Header = "Decrypt";
encryptArrow.Visibility = Visibility.Hidden;
decryptArrow.Visibility = Visibility.Visible;
EncryptBox.DeleteContent(mainWindow);
DecryptBox.GenerateContent(mainWindow, k);
textBoxCiphertext.IsReadOnly = false;
textBoxPlaintext.IsReadOnly = true;
}
else //encryptMode == false
{
encryptMode = true;
k = new Kuznyechik(textBoxPlaintext.Text, textBoxKey.Text, "");
cryptTab.Header = "Encrypt";
encryptArrow.Visibility = Visibility.Visible;
decryptArrow.Visibility = Visibility.Hidden;
DecryptBox.DeleteContent(mainWindow);
EncryptBox.GenerateContent(mainWindow, k);
textBoxCiphertext.IsReadOnly = true;
textBoxPlaintext.IsReadOnly = false;
}
}
private void textBoxKey_TextChanged(object sender, TextChangedEventArgs e)
{
int x = textBoxKey.SelectionStart;
textBoxKey.Text = textBoxKey.Text.ToUpper();
textBoxKey.SelectionStart = x;
if ((textBoxKey != null && textBoxKey.Text.Length == 64) && ((encryptMode == true && textBoxPlaintext != null && textBoxPlaintext.Text.Length == 32) || (encryptMode == false && textBoxCiphertext != null && textBoxCiphertext.Text.Length == 32)))
{
if (XBoxVisualization.IsActive() == true)
{
XBoxVisualization.DeleteContent(mainWindow);
}
if (SBoxVisualization.IsActive() == true)
{
SBoxVisualization.DeleteContent(mainWindow);
}
if (LBoxVisualization.IsActive() == true)
{
LBoxVisualization.DeleteContent(mainWindow);
}
if (Reversed_LBoxVisualization.IsActive() == true)
{
Reversed_LBoxVisualization.DeleteContent(mainWindow);
}
if (encryptMode == true)
{
k = new Kuznyechik(textBoxPlaintext.Text, textBoxKey.Text, "");
textBoxCiphertext.Text = k.ToString();
EncryptBox.DeleteContent(mainWindow);
EncryptBox.GenerateContent(mainWindow, k);
}
else //encryptMode == false
{
k = new Kuznyechik("", textBoxKey.Text, textBoxCiphertext.Text);
textBoxPlaintext.Text = k.ToString();
DecryptBox.DeleteContent(mainWindow);
DecryptBox.GenerateContent(mainWindow, k);
}
KeyGenBox.DeleteContent(mainWindow);
KeyGenBox.GenerateContent(mainWindow, k);
IntroBox.DeleteContent(mainWindow);
IntroBox.GenerateContent(mainWindow, k);
}
}
/// <summary>
/// Шифратор
/// </summary>
/// <param name="data"></param>
/// <param name="key"></param>
/// <param name="cipher"></param>
/// <returns></returns>
private static byte[] Encrypt(string data, byte[] key, string cipher)
{
byte[] result;
int sizeBlock;
switch (cipher)
{
case "Нет":
result = Encoding.GetEncoding(866).GetBytes(data);
break;
case "Кузнечик":
Kuznyechik kuznyechik = new Kuznyechik();
sizeBlock = 16;
//Если количество блоков не пропорционально размеру блока, то дописываем символы заполнения
while (data.Length % sizeBlock != 0)
{
data += "┼";
}
//Кодируем текст в массив байт
byte[] dataBytes = Encoding.GetEncoding(866).GetBytes(data);
result = new byte[dataBytes.Length];
//В цикле формируем блоки...
for (int i = 0; i < dataBytes.Length; i += sizeBlock)
{
byte[] data8bytes = new byte[sizeBlock];
for (int k = 0; k < sizeBlock; k++)
{
data8bytes[k] = dataBytes[k + i];
}
//...и зашфровывем эти блоки с помощью ключа
byte[] dataE8bytes = kuznyechik.encrypt(data8bytes, key);
for (int k = 0; k < sizeBlock; k++)
{
result[k + i] = dataE8bytes[k];
}
}
break;
case "Магма":
//Аналогично Кузнечику
Magma magma = new Magma();
sizeBlock = 8;
while (data.Length % sizeBlock != 0)
{
data += "┼";
}
dataBytes = Encoding.GetEncoding(866).GetBytes(data);
result = magma.Encode(dataBytes, key);
break;
case "AES":
//Аналогично Кузнечику
sizeBlock = 16;
Aes aes = Aes.Create();
aes.Mode = CipherMode.ECB;
aes.KeySize = 256;
aes.BlockSize = sizeBlock * 8;
aes.Key = key;
aes.Padding = PaddingMode.Zeros;
ICryptoTransform encryptor = aes.CreateEncryptor();
while (data.Length % sizeBlock != 0)
{
data += "┼";
}
dataBytes = Encoding.GetEncoding(866).GetBytes(data);
result = encryptor.TransformFinalBlock(dataBytes, 0, dataBytes.Length);
break;
default:
result = null;
break;
}
return(result);
}
/// <summary>
/// Дешифратор
/// </summary>
/// <param name="packet"></param>
/// <param name="key"></param>
/// <returns></returns>
private static string Decrypt(Packet packet, byte[] key)
{
string result = "";
int sizeBlock;
//В зависимости от шифра, выполняются разные действия
switch (packet.cipher)
{
case "Нет":
case null:
//Если шифра нет, то просто декодируем байты в текст
result = Encoding.GetEncoding(866).GetString(packet.data);
break;
case "Кузнечик":
Kuznyechik kuznyechik = new Kuznyechik();
sizeBlock = 16;
//Количество байт
byte[] dataD = new byte[packet.data.Length];
//В цикле формируем блоки указанного размера...
for (int i = 0; i < packet.data.Length; i += sizeBlock)
{
byte[] data8bytes = new byte[sizeBlock];
for (int k = 0; k < sizeBlock; k++)
{
data8bytes[k] = packet.data[k + i];
}
//...и дешифруем каждый блок в отдельности с помощью ключа
byte[] dataD8bytes = kuznyechik.decrypt(data8bytes, key);
for (int k = 0; k < sizeBlock; k++)
{
dataD[k + i] = dataD8bytes[k];
}
}
//Декодируем расшифрованный набор байт в текст
result = Encoding.GetEncoding(866).GetString(dataD);
result = result.Replace("┼", ""); //Убираем симвлоы заполнения блока
break;
case "Магма":
//Аналогично Кузнечику
Magma magma = new Magma();
sizeBlock = 8;
dataD = magma.Decode(packet.data, key);
result = Encoding.GetEncoding(866).GetString(dataD);
result = result.Replace("┼", "");
break;
case "AES":
//Аналогично Кузнечику
sizeBlock = 16;
Aes aes = Aes.Create();
aes.Mode = CipherMode.ECB;
aes.KeySize = 256;
aes.BlockSize = sizeBlock * 8;
aes.Key = key;
aes.Padding = PaddingMode.Zeros;
ICryptoTransform encryptor = aes.CreateDecryptor();
dataD = encryptor.TransformFinalBlock(packet.data, 0, packet.data.Length);
result = Encoding.GetEncoding(866).GetString(dataD);
result = result.Replace("┼", "");
break;
default:
result = null;
break;
}
return(result);
}
public void Kuznyechik()
{
Kuznyechik cipher = new Kuznyechik();
cipher.SetKey(_ref_key);
CollectionAssert.AreEqual(_ref_cipher, cipher.Encrypt(_ref_plain));
}
/// <summary>
/// Дешифратор
/// </summary>
/// <param name="packet"></param>
/// <returns></returns>
static string Decrypt(Packet packet)
{
string result = "";
byte[] dataD;
int sizeBlock;
switch (packet.cipher)
{
case "Нет":
case null:
result = Encoding.GetEncoding(866).GetString(packet.data);
break;
case "Кузнечик":
Kuznyechik kuznyechik = new Kuznyechik();
sizeBlock = 16;
dataD = new byte[packet.data.Length];
for (int i = 0; i < packet.data.Length; i += sizeBlock)
{
byte[] data8bytes = new byte[sizeBlock];
for (int k = 0; k < sizeBlock; k++)
{
data8bytes[k] = packet.data[k + i];
}
byte[] dataD8bytes = kuznyechik.decrypt(data8bytes, key);
for (int k = 0; k < sizeBlock; k++)
{
dataD[k + i] = dataD8bytes[k];
}
}
result = Encoding.GetEncoding(866).GetString(dataD);
result = result.Replace("┼", "");
break;
case "Магма":
Magma magma = new Magma();
dataD = magma.Decode(packet.data, key);
result = Encoding.GetEncoding(866).GetString(dataD);
result = result.Replace("┼", "");
break;
case "AES":
sizeBlock = 16;
Aes aes = Aes.Create();
aes.Mode = CipherMode.ECB;
aes.KeySize = 256;
aes.BlockSize = sizeBlock * 8;
aes.Key = key;
aes.Padding = PaddingMode.Zeros;
ICryptoTransform decryptor = aes.CreateDecryptor();
dataD = decryptor.TransformFinalBlock(packet.data, 0, packet.data.Length);
result = Encoding.GetEncoding(866).GetString(dataD);
result = result.Replace("┼", "");
break;
default:
result = null;
break;
}
return(result);
}
/// <summary>
/// Шифратор
/// </summary>
/// <param name="data"></param>
/// <returns></returns>
private Packet Encrypt(string data)
{
byte[] result;
byte[] dataBytes;
int sizeBlock;
string cipher = comboBox1.SelectedItem.ToString();
switch (cipher)
{
case "Нет":
result = Encoding.GetEncoding(866).GetBytes(data);
break;
case "Кузнечик":
Kuznyechik kuznyechik = new Kuznyechik();
sizeBlock = 16;
while (data.Length % sizeBlock != 0)
{
data += "┼";
}
dataBytes = Encoding.GetEncoding(866).GetBytes(data);
result = new byte[dataBytes.Length];
for (int i = 0; i < dataBytes.Length; i += sizeBlock)
{
byte[] data8bytes = new byte[sizeBlock];
for (int k = 0; k < sizeBlock; k++)
{
data8bytes[k] = dataBytes[k + i];
}
byte[] dataE8bytes = kuznyechik.encrypt(data8bytes, key);
for (int k = 0; k < sizeBlock; k++)
{
result[k + i] = dataE8bytes[k];
}
}
break;
case "Магма":
Magma magma = new Magma();
sizeBlock = 8;
while (data.Length % sizeBlock != 0)
{
data += "┼";
}
dataBytes = Encoding.GetEncoding(866).GetBytes(data);
result = magma.Encode(dataBytes, key);
break;
case "AES":
sizeBlock = 16;
Aes aes = Aes.Create();
aes.Mode = CipherMode.ECB;
aes.KeySize = 256;
aes.BlockSize = sizeBlock * 8;
aes.Key = key;
aes.Padding = PaddingMode.Zeros;
ICryptoTransform encryptor = aes.CreateEncryptor();
while (data.Length % sizeBlock != 0)
{
data += "┼";
}
dataBytes = Encoding.GetEncoding(866).GetBytes(data);
result = encryptor.TransformFinalBlock(dataBytes, 0, sizeBlock);
break;
default:
result = null;
break;
}
Packet packet = new Packet();
packet.data = result;
packet.cipher = cipher;
return(packet);
}
