internal void AddLength (ulong length, byte[] buffer, int position)
{
buffer [position++] = (byte)(length >> 56);
buffer [position++] = (byte)(length >> 48);
buffer [position++] = (byte)(length >> 40);
buffer [position++] = (byte)(length >> 32);
buffer [position++] = (byte)(length >> 24);
buffer [position++] = (byte)(length >> 16);
buffer [position++] = (byte)(length >> 8);
buffer [position] = (byte)(length);
}
}