Image Encryption Tool

This Python script provides a simple image encryption and decryption tool using pixel manipulation. The tool allows users to encrypt and decrypt images by swapping pixel values based on a provided key.

Features

• Encrypt Images: Randomly swaps pixel values to encrypt the image.
• Decrypt Images: Reverses the pixel swaps to restore the original image.
• Key Confirmation: Ensures that only users with the correct key can encrypt or decrypt the image.

Prerequisites

• Python 3.x
• Pillow library

Installation

1. Install Python 3.x from the official website.

2. Install the Pillow library using pip:

   pip install pillow

Usage

Encrypt an Image

To encrypt an image, use the following command:

python3 image_en_decrypt.py encrypt <input_image_path> <output_image_path> <key>

Example:

python3 image_en_decrypt.py encrypt path/to/your/image.jpg path/to/save/encrypted_image.jpg 24

Decrypt an Image

To decrypt an image, use the following command:

python3 image_en_decrypt.py decrypt <input_image_path> <output_image_path> <key>

Example:

python3 image_en_decrypt.py decrypt path/to/save/encrypted_image.jpg path/to/save/decrypted_image.jpg 24

Key Confirmation

When you run the script, you will be prompted to confirm your key. If the entered key does not match the provided key, the script will print a message indicating that the image is not intended for you.

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