Public Key Authentication System with RSA Algorithm Project Description This project is a secure messaging web application that allows users to send encrypted messages to each other. The application uses Flask as the web framework and SQLite for database storage. The messaging functionality is secured using asymmetric encryption and digital signatures.

Features User registration and login with password hashing Asymmetric encryption and digital signatures for secure messaging Certificate-based authentication User-friendly web interface for sending and receiving messages Secure storage of private keys and certificates SSL/TLS encryption for secure communication Installation and Usage Guide Prerequisites Python 3.x installed on your system Git installed on your system (optional, for cloning the repository) Installation Steps Clone the repository to your local machine:

bash Copy code git clone https://github.com/NkenfaB/Secure-Messaging.git Alternatively, you can download the repository as a ZIP file and extract it.

Navigate to the project directory:

bash Copy code cd Secure-Messaging (Optional) Create and activate a virtual environment to isolate project dependencies:

bash Copy code python -m venv venv On Windows: bash Copy code venv\Scripts\activate On macOS/Linux: bash Copy code source venv/bin/activate Install the required Python packages using pip and the requirements.txt file:

bash Copy code pip install -r requirements.txt Running the Application Run the Flask web application:

bash Copy code python app.py Access the application in your web browser by visiting:

arduino Copy code http://127.0.0.1:5000/ Usage Register a new user account if it's your first time using the application. Log in using your credentials. Send encrypted messages to other registered users. Receive encrypted messages sent to your account. Note Make sure to log out of your account when you're done using the application.