| public CreateEncryptor ( byte key, byte iv ) : ICryptoTransform | ||
| key | byte | A byte array that contains a key. The length of this key should be equal to the KeySize property |
| iv | byte | A byte array that contains an initialization vector. The length of this IV should be equal to the BlockSize property |
| return | ICryptoTransform | |
static void Main(string[] args)
{
Twofish fish = new Twofish();
fish.Mode = CipherMode.ECB;
System.IO.MemoryStream ms = new System.IO.MemoryStream();
byte[] Key = {1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16};
byte[] dummy = {};
//create Twofish Encryptor from this instance
ICryptoTransform encrypt = fish.CreateEncryptor(Key, dummy); // we use the plainText as the IV as in ECB mode the IV is not used
//Create Crypto Stream that transforms file stream using twofish encryption
CryptoStream cryptostream = new CryptoStream(ms, encrypt, CryptoStreamMode.Write);
byte[] plainText = GetBytes("Some string to encrypt");
//write out Twofish encrypted stream
cryptostream.Write(plainText, 0, plainText.Length);
cryptostream.Close();
byte[] bytOut = ms.ToArray();
System.Console.WriteLine( "Encrypted string: " + GetString( bytOut ) );
//create Twofish Decryptor from our twofish instance
ICryptoTransform decrypt = fish.CreateDecryptor(Key, plainText);
System.IO.MemoryStream msD = new System.IO.MemoryStream();
//create crypto stream set to read and do a Twofish decryption transform on incoming bytes
CryptoStream cryptostreamDecr = new CryptoStream(msD, decrypt, CryptoStreamMode.Write);
//write out Twofish encrypted stream
cryptostreamDecr.Write(bytOut, 0, bytOut.Length);
cryptostreamDecr.Close();
byte[] bytOutD = msD.GetBuffer();
System.Console.WriteLine("Decrypted string: " + GetString(bytOutD));
}
public string Encrypt(string str)
{
Twofish fish = new Twofish();
fish.Mode = CipherMode.ECB;
System.IO.MemoryStream ms = new System.IO.MemoryStream();
byte[] dummy = { };
//create Twofish Encryptor from this instance
ICryptoTransform encrypt = fish.CreateEncryptor(key, dummy); // we use the plainText as the IV as in ECB mode the IV is not used
//Create Crypto Stream that transforms file stream using twofish encryption
CryptoStream cryptostream = new CryptoStream(ms, encrypt, CryptoStreamMode.Write);
byte[] plainText = GetBytes(str);
//write out Twofish encrypted stream
cryptostream.Write(plainText, 0, plainText.Length);
cryptostream.Close();
byte[] bytOut = ms.ToArray();
return GetString(bytOut);
}
public string shadow_encrypt(string plainText)
{
fish = new Twofish();
fish.Mode = CipherMode.ECB;
ms = new System.IO.MemoryStream();
//form.log("we were guna send the IM with " + plainText);
byte [] plainBytes = Utils.StringToBytes(plainText);
ICryptoTransform encode = new ToBase64Transform();
ICryptoTransform encrypt = fish.CreateEncryptor(form.getKey(),plainBytes);
CryptoStream cryptostream = new CryptoStream(new CryptoStream(ms,encode,CryptoStreamMode.Write),encrypt,CryptoStreamMode.Write);
cryptostream.Write(plainBytes,0,plainBytes.Length);
cryptostream.Close();
byte[] bytOut = ms.ToArray();
form.log("We encrypted "+plainText+" to "+Utils.BytesToString(bytOut),Color.DarkRed);
return Utils.BytesToString(bytOut);
}