private byte[] SerpentB(byte[] Key, byte[] Data)
{
int len = Data.Length;
int ct = 0;
byte[] output = new byte[len];
SerpentEngine serpent = new SerpentEngine();
serpent.Init(true, Key);
while (ct < len)
{
serpent.ProcessBlock(Data, ct, output, ct);
ct += 16;
}
return(output);
}
/// <summary>
/// Encrypted the data.
/// </summary>
/// <param name="data">The data to encrypted.</param>
/// <param name="passphrase">The passphrase key used to mask the data.</param>
/// <returns>The encrypted data.</returns>
public byte[] Encrypt(byte[] data, string passphrase)
{
// Create the key parameters.
byte[] key = Encoding.Default.GetBytes(passphrase);
Key.Crypto.Parameters.KeyParameter keyParameter = new KeyParameter(key);
// Initialise the cryptography engine.
Key.Crypto.Engines.SerpentEngine serpent = new SerpentEngine();
serpent.Init(true, keyParameter);
int dataLength = data.Length;
int blockSize = serpent.GetBlockSize();
int modBlockSize = dataLength % blockSize;
int blockCount = dataLength / blockSize;
// If there is a remained then add en extra block count.
if ((modBlockSize) > 0)
{
// Add one extra block.
blockCount++;
}
// Encrypted data store.
byte[] encryptedData = new byte[blockCount * blockSize];
byte[] decryptedData = new byte[blockCount * blockSize];
// Copy the decrypted data.
for (int j = 0; j < dataLength; j++)
{
// Assign the data.
decryptedData[j] = data[j];
}
// For each block size in the the data.
for (int i = 0; i < blockCount; i++)
{
// Encrypt the block.
serpent.ProcessBlock(decryptedData, (i * blockSize), encryptedData, (i * blockSize));
}
// Return the encrypted data.
return(encryptedData);
}
private byte[] SerpentB(byte[] Key, byte[] Data)
{
int len = Data.Length;
int ct = 0;
byte[] output = new byte[len];
SerpentEngine serpent = new SerpentEngine();
serpent.Init(true, Key);
while (ct < len)
{
serpent.ProcessBlock(Data, ct, output, ct);
ct += 16;
}
return output;
}
