🔐 DES Encryption Web App (Flask)

A simple web application built with Python and Flask that enables users to perform text encryption using the Data Encryption Standard (DES) algorithm. The app provides a user-friendly interface to input plaintext and an 8-character key, and displays the encrypted result in hexadecimal format.

🚀 Features

• Encrypt text using the DES algorithm (ECB mode)
• User-friendly web interface built with HTML and Flask
• Key validation to ensure exactly 8 characters
• Displays encrypted output in hexadecimal format

🛠 Technologies Used

• Python 3.10
• Flask
• PyCryptodome (for cryptographic operations)

📦 Project Structure

des\_flask\_app/
│
├── app.py               # Main Flask application
├── requirements.txt     # Python dependencies
└── static/
    └── style.css        # Style for HTML
└── templates/
    └── index.html       # HTML template for UI

🧪 How to Run

1. Clone the Repository

git clone https://github.com/gbennnn/data-encryption-standard.git
cd data-encryption-standard

2. Create & Activate a Virtual Environment (Optional)

python -m venv .venv
source .venv/bin/activate   # On Linux/macOS
.venv\Scripts\activate      # On Windows

3. Install Dependencies

pip install -r requirements.txt

4. Run the App

python app.py

Visit: http://127.0.0.1:5000

💡 Example

• Plaintext: Learning Cryptography
• Key: mykey123
• Encrypted Output: b0a0986d2dfa5c708b7a77d37d21a48b61016932a91fc1c6

📜 License

This project is licensed under the MIT License. Feel free to use and modify it for educational or personal use.

🤝 Contributing

Contributions, feedback, and ideas are welcome! Fork this repo and submit a pull request if you'd like to improve it or add new features.

---

Preview