Integrating Blockchain in IOT

Applying Security Technique in Blockchain into IOT devices. Providing the Transparency, Privacy, and Confidentiality concepts in IOT - where they have never existed before.

Features

• Data integrity verification using blockchain immuatable ledger
• Digital signatures for device authentication and non-repudiation
• Anti-forgery protection for IoT devices with cryptographic validation
• Distributed storage with IPFS for decentralized data management
• Real-time monitoring dashboard with device status tracking

Architecture

IoT Devices → Backend API → Smart Contracts → Blockchain
     ↓             ↓              ↓
Digital Sign   Validation    Data Storage
     ↓             ↓              ↓
  IPFS Store → Web Dashboard ← Monitoring

Quick Start

Prerequisites

• Python 3.8+
• Node.js & npm
• Git

Installation

1. Clone and setup

git clone <repository-url>
cd iot-security-platform
pip install -r requirements.txt
npm install -g ganache-cli

2. Start blockchain and deploy

ganache-cli --host 0.0.0.0 --port 8545
cd contracts && python deploy.py

3. Run application

# Backend
cd app && python main.py

# Frontend
cd frontend && python -m http.server 8000

Project Structure

├── contracts/           # Solidity smart contracts
│   ├── DataStorage.sol  # Main data storage contract
│   └── deploy.py        # Contract deployment
├── app/                 # Python backend API
│   ├── main.py          # Flask application
│   ├── routes/          # API endpoints
│   └── services/        # Business logic
├── frontend/            # Web interface
├── iot_device/          # Device simulator
├── tests/               # Test suites
└── docs/                # Documentation

API Endpoints

• POST /api/iot/data - Submit IoT device data
• GET /api/iot/verify/{device_id} - Verify device authenticity
• GET /api/data/integrity/{hash} - Check data integrity
• GET /api/devices - List registered devices

Testing

# Run all tests
python -m pytest tests/ -v

# Run specific tests
python -m pytest tests/test_signature.py
python -m pytest tests/test_data_integrity.py

Tech Stack

Blockchain

• Ethereum, Solidity
• Web3.py for interaction

Backend

• Python, Flask
• Cryptographic libraries
• IPFS integration

Frontend

• HTML5, JavaScript, CSS3
• Real-time visualization

License

MIT License