A simple, secure LAN file transfer app with a modern GUI built using CustomTkinter. Featuring RSA + AES encryption, confirmation dialogs, and progress tracking — available via GUI or CLI.

• 📁 Send and receive files over LAN
• 🔒 End-to-end encryption (RSA + AES)
• 🖥️ Clean GUI with tabbed layout
• 💻 CLI mode for headless environments
• 🔎 Confirm sender key
• 📊 Real-time progress bar & history log

• Python 3.10 or newer
• Windows, macOS, or Linux

pip install -r requirements.txt

python src/main.py

Or explicitly:

python src/main.py gui

python src/main.py send --ip <RECEIVER_IP> --file "<PATH_TO_FILE>"

Examples:

python src/main.py send --ip 192.168.1.42 --file "test.txt"

python src/main.py send --ip 192.168.0.42 --file "C:\somefolder\test.txt"

python src/main.py receive

You'll be prompted to approve the sender's public key hash.

All received files are auto-extracted to:

./Received/

The folder is created if it doesn't already exist.

LANCryptor follows modern Python standards using Ruff and Black.

black .

ruff check .

ruff check . --fix

This project is licensed under the Creative Commons BY-NC 4.0. See the LICENSE file for full terms.