Encryption and Decryption App with QR Code Generation

This project is a Flask-based web application that provides encryption and decryption functionality for multiple file types. It also includes a QR code generator for quick access to the app.

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Features:

✅ Encrypt & Decrypt Files – Uses Fernet encryption from the cryptography module to secure various file formats.
✅ Automatic Key Management – Generates a unique encryption key and stores it securely.
✅ File Selection & Processing – Scans the system for common file types, excluding critical files.
✅ Web-Based Interface – A simple HTML front-end allows users to start encryption or decryption.
✅ QR Code Generation – Generates a QR code linking to the app's web interface.

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Supported File Types:

• Documents: .txt, .docx, .pptx, .pdf, .xls, .xlsx
• Images & Media: .jpg, .jpeg, .png, .mp3, .mp4, .avi, .mov, .mkv
• Code & Web Files: .cpp, .html, .xml
• Compressed & Others: .zip, .flv, .webm, .mpeg, .3gp

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How It Works:

1. User visits the web interface (index.html).
2. Selects "Encrypt Files" or "Decrypt Files" – Triggers file processing.
3. Files are scanned, encrypted, or decrypted using a secure key.
4. QR Code Generator allows easy access to the web app.

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Technology Stack:

• Backend: Flask (Python)
• Encryption: Cryptography (Fernet)
• Frontend: HTML & Flask Templates
• QR Code: qrcode Python module

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How to Run the Project:

1. Install dependencies:

   pip install flask cryptography qrcode

2. Run the Flask app:

   python app.py

3. Open in browser:

   http://localhost:5000/
   

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Contact for Freelance Work

📩 Email: abh200529@gmail.com

ONLY FOR LEARNING , HOW THINGS ARE WORKING.