A secure Flask web application that demonstrates *Post-Quantum Cryptography (PQC)* using the Kyber512 encryption scheme. The app allows users to generate keys, encrypt messages, and decrypt ciphertext — all in a simple browser interface.
The app is deployed on PythonAnywhere for public access:
Live App: https://sarib.pythonanywhere.com
- Post-Quantum key pair generation (Kyber512)
- Encrypt plaintext messages using public keys
- Decrypt ciphertext using private keys
- Responsive Bootstrap UI
- Secure with Flask-Talisman (CSP, HSTS, XSS headers)
- Python 3.x
- Flask (web framework)
- pqcrypto (post-quantum cryptography library)
- Bootstrap 5 (frontend styling)
- Flask-Talisman (security headers)
- dotenv (env config management)
- Homepage/UI Overview
- Key Generation Result
- Encrypted Message
- Decryption Result
- git clone https://github.com/sarib95965/InfoSecProject
- cd pqc-flask-app
- python3 -m venv venv
- source venv/bin/activate # On Windows: venv\Scripts\activate
- pip install -r requirements.txt
- Create a .env file in the root directory with:
- SECRET_KEY=your-super-secret-key
- You can also use .env.example as a template.
- python app.py
- Visit: http://127.0.0.1:5000
Kyber512 is one of the finalists in the NIST PQC standardization process.
This app uses:
- generate_keypair() — to create public/private keys
- encrypt() — to encrypt a message using the public key
- decrypt() — to retrieve the shared secret using the private key and ciphertext
- Library used: pqcrypto.kem.kyber512
This project is part of the CS-3002 Information Security course. Intended for educational use only.
- Student 1: Ibrahim Abid
- Roll Number: i21-0298
- Program: BS AI, FAST NUCES Islamabad
- Student 2: Sarib Ali
- Roll Number: i21-0283
- Program: BS AI, FAST NUCES Islamabad