This application is a live messaging application with a built in cryptography and key management system to allow for secure messaging. It is part of my submission for CSU33032 Advanced Networks module in TCD.
The application is a simple real-time group messaging app that supports the removal and addition of users to messaging groups. Message encryption is done using AES-256 for its speed and the AES keys are distributed using RSA-4096 encryption and signing.
The central database stores X.509 certificates for each of the clients and the real-time messaging is supported through websockets, making use of the in-built WebSocket class in TypeScript and the channels library for the server as well as Redis to manage the message queues.
The application is fully dockerised though you will need to perform some basic setup before running the docker environments.
# Make sure node and npm are installed
node --version # should be v20.*
npm --version # should be v8.*
npm --prefix client install
# Set up python virtual environment
cd api
# You may need to alias `python` with `python3` here
python --version # should be 3.11
python -m venv venv
source venv/bin/activate
pip install -r requirements.local.txt
# Change back to root directory
cd ..
# Build the docker containers
make build
# Migrate changes to the database
make migrateTo run the application you can run make run in the root directory after running the above steps.
Next go to localhost:4173 in your browser. Voila!
Group creation
View active groups
Admin view of chat
View from an intruder / user not a member of the group
View from a user who was not a member but has now been invited
