🔐 Secure Python Execution with C Launcher + PyArmor

This project demonstrates how to securely execute Python code using a C-based launcher and PyArmor-based encryption.

📁 Project Structure

.
├── main_launcher.c # Main entry point written in C
├── logic.py # Python function file (optionally encrypted via PyArmor)
└── .gitignore

✅ What This Project Does

• main_launcher.c uses the Python C API to import and run functions from logic.py
• logic.py is encrypted using PyArmor 7.x to prevent source code exposure
• launcher.exe is built using gcc and links to Python 3.10

🔐 Security Strategy

• C-based launcher: Execution starts in compiled C code, making the flow harder to reverse-engineer
• PyArmor encryption: Python code is AES-encrypted and decrypted only at runtime
• Runtime isolation: Logic and execution are split to maximize protection

⚙️ How to Build

gcc main_launcher.c -o launcher.exe -IC:/Path/To/Python310/include -LC:/Path/To/Python310/libs -lpython310

Example for my system:
gcc main_launcher.c -o launcher.exe -IC:\Users\BK\AppData\Local\Programs\Python\Python310\include -LC:\Users\BK\AppData\Local\Programs\Python\Python310\libs -lpython310

🔒 How to Protect logic.py

1. Use Python 3.10 virtual environment:

py -3.10 -m venv pyarmor-env
.\pyarmor-env\Scripts\activate
pip install "pyarmor<8"

2. Obfuscate:

pyarmor obfuscate logic.py

3. Move the following to the same folder as launcher.exe:

dist/logic.py
pytransform/

📦 Final Deployment Structure

📦 SecureApp/
├── launcher.exe
├── logic.py        # Encrypted
└── pytransform/    # Runtime

🧠 Author

Made by Ellie Eunsung Roh for secure on-device AI code distribution and reverse engineering resistance.