Scenario

Assume that you built an IoT based fire alarming and sprinkle system. You installed the system in your university campus. The system is also connected to Internet. In case of fire, the system will automatically shower the building rooms with water.

Requirements:

1. Name the devices that allows the system to know about the fire and allows water to sprinkle on the fire.
2. Which layer of WoT/IoT is responsible to connect the fire alarming system to the Internet.
3. Which cryptographic protocol will handle the data on the Internet (web) secure?