摘要 |
<p>A method for a first communication device transmitting data to a second communication device, according to one embodiment of the present invention, comprises the steps of: the first communication device generating a safety unique identifier by using a unique identifier of the first communication device and a unique identifier of the second communication device, in order to confirm the validity of connection between the first communication device and the second communication device; the first communication device calculating a data error detection code for detecting an error by using the safety unique identifier and the data; the first communication device generating a packet comprising the data and the data error detection code; and the first communication device transmitting the packet to the second communication device.</p> |