Practical Internet of Things Security - Second Edition

Step 1 – identify the assets

Documentation of the assets within the system provides an understanding of what must be protected. Assets are items that are of interest to an attacker. For the smart parking solution, we can see typical assets described in in the following table. Note that, for space-saving purposes, we have simplified the asset list somewhat:

ID	Asset	Description
1	Sensor data	Sensor data is telemetry that signals whether a parking spot is filled or empty. Sensor data is generated by each sensor, which is placed where convenient within a parking structure. Sensor data is transmitted via ZigBee protocol to the sensor gateway. Data is merged with other sensor data and transmitted via Wi-Fi to a router that is ...