Smart Home Security System

What?

Our Security System will consist of 4 parts and is best explained by the following diagrams.

1. "Low Stakes" Access

For low-stakes access to internal doors we assume the person has already verified their device at the external door so we do not need to send them a push notification.

2. High Stakes Access

For external entry into the building, we will send the person a push notification to confirm that they have the device in their possession. This is because it's possible to clone an NFC tag so we cannot rely on the tag being "real" for high-security access. see: https://medium.com/insidersec0x42/how-i-finally-managed-to-clone-a-nfc-tag-4a9f64ef49c5

View/Edit this diagram: https://docs.google.com/presentation/d/1Q8CekKPniStTpwOm2O1za3yCB7hGMAujfxQZRJvhGYQ

Our system will run on a Raspberry Pi¹ and use a comodity NFC Reader to read the NFC chip of the mobile phone.

Relevant Reading / Random Research

• Turn Your Raspberry Pi into a Bluetooth Beacon https://circuitdigest.com/microcontroller-projects/turn-your-raspberry-pi-into-bluetooth-beacon-using-eddystone-ble-beacon
• List of NFC-enabled mobile devices https://en.wikipedia.org/wiki/List_of_NFC-enabled_mobile_devices
• What's the difference between RFID, NFC and BLE? https://youtu.be/7atphSqrvAc
• 5 Things You Need to Know About Beacon Technology: https://www.wordstream.com/blog/ws/2018/10/04/beacon-technology