protected override byte[] EncodeBytes(byte[] data, SecureString password)
{
var key = HashPassword(password, KEY_SIZE);
var iv = GenerateSalt(IV_SIZE);
var fish = new BlowFish(key) {IV = iv};
return Concat(iv, fish.Encrypt_CBC(data));
}
protected override byte[] DecodeBytes(byte[] data, SecureString password)
{
var key = HashPassword(password, KEY_SIZE);
var iv = data.Take(IV_SIZE).ToArray();
var fish = new BlowFish(key) { IV = iv };
return TrimRightNull(fish.Decrypt_CBC(data.Skip(IV_SIZE).ToArray()));
}
public SHA256_Blowfish(Stream source)
{
key = new byte[BlowFish_KEY_SIZE_DEFAULT];
System.Buffer.BlockCopy(generateKey(), 0, key, 0, BlowFish_KEY_SIZE_DEFAULT);
this.Source = source;
blowfish = new BlowFish(key);
blowfish.IV = BlowFish_IV_DEFAULT;
initializeOutput();
this.Output.Key = BitConverter.ToString(key).Replace("-", "");
}
public SHA256_Blowfish(byte[] keySrc, Stream source)
{
keySrc = generateKey(keySrc);
int length = Math.Min(keySrc.Length, BlowFish_KEY_SIZE_DEFAULT);
key = new byte[length];
keySrc.CopyTo(key, 0);
this.Source = source;
blowfish = new BlowFish(keySrc);
blowfish.IV = BlowFish_IV_DEFAULT;
initializeOutput();
}
public void RoundTripTest()
{
Console.WriteLine("Start");
BlowFish b = new BlowFish("04B915BA43FEB5B6");
string org_text = "The quick brown fox jumped over the lazy dog.";
//Console.WriteLine(plainText);
string cipherText = b.Encrypt_CBC(org_text);
//Console.WriteLine(cipherText);
string decoded_text = b.Decrypt_CBC(cipherText);
//Console.WriteLine(plainText);
Assert.AreEqual(org_text, decoded_text);
}
public void CorruptDecodeTest()
{
Console.WriteLine("Start");
BlowFish b = new BlowFish("04B915BA43FEB5B6");
string org_text = "The quick brown fox jumped over the lazy dog.";
string cipherText = b.Encrypt_CBC(org_text);
System.Text.StringBuilder corrupted_text = new System.Text.StringBuilder(cipherText);
corrupted_text[3] = 'A';
corrupted_text[10] = 'B';
corrupted_text[50] = 'C';
string decoded_text = b.Decrypt_CBC(corrupted_text.ToString());
//Console.WriteLine(decoded_text);
Assert.AreNotEqual(org_text, decoded_text);
Console.WriteLine(System.Environment.GetEnvironmentVariable("Path"));
}
public static extern void Decrypt1(BlowFish* handle, byte* buf, IntPtr n, int iMode = (int)BlowfishMode.ECB);
