Steg-Pro Backend

This is the Django backend for the Steg-Pro project. It provides API endpoints for embedding and extracting files using steganography techniques.

Workflow

Project Structure

• steg_backend/: Main Django project settings and configuration.
• apps/: Contains the Django applications:
  • encryption/: Handles file embedding via steganography.
  • decryption/: Handles file extraction from steganographic images.
  • common/: Shared utilities and middleware.
• files/: Directory for storing uploaded files, modified images, and output files.
• manage.py: Django's command-line utility for administrative tasks.

API Endpoints

• POST /embed/: Embeds files into a cover image using steganography. Accepts a cover image and files to embed.
• POST /decrypt/: Extracts embedded files from a steganographic image. Requires the cover image and encryption keys.
• GET /download/img/: Downloads the steganographic output image.
• GET /download/zip/: Downloads the extracted ZIP file.

Setup Instructions

1. Clone the repository:

   git clone <repository-url>
   cd backend

2. Create a virtual environment:

   python -m venv venv
   source venv/bin/activate  # On Windows, use `venv\Scripts\activate`

3. Install dependencies:

   pip install -r requirements.txt

4. Run migrations:

   python manage.py migrate

5. Start the development server:

   python manage.py runserver

Dependencies

• Django 5.2
• django-cors-headers
• cryptography
• numpy
• Pillow
• qiskit
• scipy
• and others (see requirements.txt)

Configuration

• CORS is configured to allow all origins in development. For production, update CORS_ALLOWED_ORIGINS in settings.py.
• CSRF trusted origins are set to localhost:5173. Update CSRF_TRUSTED_ORIGINS for production.

Notes

• This README focuses on the Django backend only. For CLI functionality, refer to the CLI documentation.