BSc thesis project - encrypted mobile communicator app using SDEx encryption method

⚠️	The thesis and app UI is in Polish, logs and comments in code are in English.

Core functionalities

• signing/registration in app (locally)
• signing in to server (my implementation, no 3rd party)
• CRUD operations on contacts
• sending/receiving text messages
• checking user's availability
• encryption/decryption done locally, server only mediates the exchange and returns delivery confirmation

How to run

Mobile app (in Android emulator)

cd <PROJECT_ROOT>/sdex-encrypted-communicator
npm install
npm start

next press to open in an avd (needs to be created beforehand)

Server

cd <PROJECT_ROOT>/server
uvicorn main:app --reload

Tech stack

Mobile app

• React Native
• TypeScript
• Expo
• Zustand
• SQLite

Server

• Python 3.10
• FastAPI
• Uvicorn
• Pydantic
• SQLite

⚠️	App has only been tested on Android emulators and physical device, iOS hasn't been tested.