💳 RFID SECURITY PROJECT

Project utilizing RFID cards for secure authentication, with real-time price administration functionality. Developed for the Computer System Security course at the Hellenic Mediterranean University.

Requirements

• Python 3.6 or later
• Libraries: Asyncio, Websockets, JSON, Dotenv, Cryptography, MariaDB, getpass
• MFRC 522 Drivers/Library (for RFID functionality)
• MariaDB (for database operations)
• Cryptography Library (for AES and Fernet encryption)

📚 Libraries Installation

pip3 install asyncio websocket-client os dotenv cryptography mariadb getpass

🚀 For run the server:

python3 server.py

This command starts the server, which handles user authentication, price administration, and secure WebSocket communication.

👨🏻‍💻 For the client, run:

python3 client.py

This initiates the client-side application, allowing users to log in using RFID cards and interact with the server to administer prices.

🌏 For the web client, run:

For install the requires JS modules

npm i

For run the app

node app.js

This initiates the web client, that show the actual price of the "gas station simulator"

🔒 SECURITY

• AES-256 encryption for sensitive data protection.
• Usage of Fernet for secure key management.
• SSL/TLS implemented for secure client-server communication.
• Secure handling and hashing of user passwords and RFID card data. -Real-time price administration with secure database transactions. Utilization of nonces to prevent replay attacks.

📄 Enviroment files format

For server.py & card_creator.py

DB_USER=
DB_PASSWORD=
DB_HOST=
DB_NAME=
SIMULATION=

For client.py

SERVER_IP=
SERVER_PORT=
SIMULATION=

For the web client

DB_HOST=
DB_USER=
DB_PASSWORD=
DB_NAME=
SERVER_PORT=