public int encrypt(byte[] raw, int offset, int size)
{
// reserve checksum
size += 4;
if (_static)
{
// reserve for XOR "key"
size += 4;
// padding
size += 8 - (size % 8);
NewCrypt.encXORPass(raw, offset, size, rnd.Next());
_staticCrypt.crypt(raw, offset, size);
_static = false;
}
else
{
// padding
size += 8 - (size % 8);
NewCrypt.appendChecksum(raw, offset, size);
_crypt.crypt(raw, offset, size);
}
return(size);
}
/**
* Packet is first XOR encoded with <code>key</code> Then, the last 4 bytes are overwritten with the the XOR "key". Thus this assume that there is enough room for the key to fit without overwriting data.
* @param raw The raw bytes to be encrypted
* @param key The 4 bytes (int) XOR key
*/
public static void encXORPass(byte[] raw, int key)
{
NewCrypt.encXORPass(raw, 0, raw.Length, key);
}
