Respected friends
Am doing project in networks, we are programming the drivers of the ethernet for ARM7 microcontroller. We are done with transmitting data, but we want to know how we can manually give data from MCB2300 keil evaluation board to the remote PC and how can we check whether the message is coming from the person X or not using the evaluation board........
How to send data from the board to the PC?
Using ethernet. Using USB. Using RS-232. Using CAN (would normally require a CAN controller installed on the PC)
So exactly what _is_ your question?
How to know that person X sent the message? The traditional way is to sign the message using a certificate of some kind. Standard cryptographic solution - nothing fancy and well documented.