AES File Encryption and Decryption

This project provides a Python script to encrypt and decrypt files using AES encryption in EAX mode.

Prerequisites

Before running the script, ensure you have Python installed on your system. You will also need to install the required library:

pip install pycryptodome

Prepare the Demo File:
A demo file, demofile.txt, is included for testing. Make sure it is in the same directory as the script.
Run the Script:
Use the following command to encrypt and decrypt the demo file:
```
python3 script.py demofile.txt
```
If you want to use your own file:
```
python3 script.py PATH_TO_FILE
```
Expected Output:
The script will:
- Generate a random AES encryption key.
- Encrypt the contents of demofile.txt.
- Print the ciphertext and decrypted data.

The script is configured to handle binary files, so you can test it with text or any binary content.
The decrypted data will match the original file's contents exactly unless the file is modified or the encryption key is incorrect.