🖼️ Image Encryption & Decryption Tool (Python)

A Python-based Image Encryption and Decryption application built for learning and demonstration purposes. The project uses a simple XOR-based encryption algorithm and provides a user-friendly GUI developed with Tkinter.

This tool demonstrates the fundamentals of file-level encryption, byte manipulation, and basic cryptographic concepts in a clear and interactive way.

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🚀 Features

• 🔐 Image Encryption Encrypt JPG images using a user-defined numeric key.

• 🔓 Image Decryption Decrypt encrypted images using the same key applied during encryption.

• 🖥️ Graphical User Interface (GUI) Clean and intuitive interface built with Tkinter.

• 🧪 Educational Focus Designed to help understand how XOR-based encryption works at the byte level.

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⚙️ How It Works

🔑 Encryption

• The selected image is read as a byte array
• Each byte is XORed with the provided integer key
• The resulting output is saved as an encrypted image file

🔁 Decryption

• The encrypted image is processed using the same key
• Applying XOR again reverses the operation
• The original image is restored

⚠️ Note: XOR encryption is used here for learning purposes only and should not be considered secure for real-world applications.

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🧰 Requirements

• Python 3.x
• Tkinter (comes pre-installed with most Python distributions)
• Pillow (PIL)

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📦 Installation

Clone the repository:

git clone https://github.com/farixzz/image-encryption-decryption.git
cd image-encryption-decryption

Install dependencies:

pip install -r requirements.txt

Or install manually:

pip install Pillow

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▶️ Usage

Run the application:

python image_encryption_decryption.py

Using the GUI:

1. Click Choose Image to select a JPG file
2. Enter an integer key in the input field
3. Click Encrypt to encrypt the image
4. Click Decrypt to restore the original image

Encrypted and decrypted images can be saved to your preferred location.

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📁 Project Structure

image-encryption-decryption/
│
├── image_encryption_decryption.py   # Main application script
├── requirements.txt                 # Project dependencies
└── README.md                        # Project documentation

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🛡️ Use Case

• Learning basic cryptography concepts
• Understanding byte-level file manipulation
• Academic demonstrations
• Cybersecurity & Python practice projects

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📜 License

This project is licensed under the MIT License. See the LICENSE file for more details.

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⭐ If you find this project useful, consider starring the repository!