Data Integrity on IoT device

This demonstration shows how to ensure data integrity of an IoT data streaming from a typical IoT device such as raspberry pi. This demonstration is using Veracity Data Lineage Service, and the data integrity information is stored in the live DTL environment - IOTA tangle mainnet.

Demo: https://www.youtube.com/watch?v=uL5f_d1Np20

To browse the saved data integrity data, go to https://thetangle.org/mam/UZFQPIFSPRNEXLGYLKQIFUZNZWLSQCUWBFHRWLBJDKIANJLKRMEYAMEPFEFHQBTENPSLPQBKKCVGYLMUN

Hardware

• Raspberry Pi
• Sensehat (for collecting sensor data and displaying animation)

Prerequisites

• Python (python version is specified in Pipfile)
• Pipenv

Run the code:

# Step 1: Init
git clone https://github.com/linkcd/data-integrity-on-pi.git
cd data-integrity-on-pi
pipenv install
pipenv shell

# Step 2: Update seed in main.py or sample-app.py

# 3 Run
#if you have sense hat
(in pipenv shell)> python3 main.py 

#if you wanna run the sample code which does not require a sense hat
(in pipenv shell)> python3 sample-app.py

Code structure

The main code is

• ./helpers/dataintegrityhelper.py (calling veracity data lineage service)
• ./helpers/sensehathelper.py (handling sense hat animation)
• ./main.py

A simplified version is sample-app.py which can run without a sense hat (sending dummy data payload)

Important

Replace seed value with your private seed. The seed belongs to the device, and is used as a private key of that device.

#Device variables
device_seed = "<YOUR_SEED_GOES_HERE>"