Student Guidance: Decryption Task

1. Encryption Code Review

   • Review the provided encrypt_file.py script that encrypts a text file using AES encryption.
   • Understand how the script reads the content of input.txt, pads the plaintext, and encrypts it with a specific key.

2. Task Overview

   • Your task is to create a decryption function to decrypt the encrypted.txt file that was encrypted using the provided encryption script.
   • Import necessary modules like AES decryption and padding functions.

3. Decryption Function Structure

   • Create a function that:
     • Reads the encrypted file.
     • Decrypts the content using the same key that was used for encryption.
     • Removes padding from the decrypted plaintext.
     • Writes the decrypted content to a new file.

4. Decryption Function Template

   • Use the provided decryption function template as a reference to structure your decryption function.
   • Ensure that the decryption logic matches the encryption process to successfully decrypt the file.

5. Decryption Process

   • Execute your decryption function to decrypt the encrypted.txt file and reveal the hidden story about the mysterious hacker.
   • Verify that the decrypted content matches the original text to ensure a successful decryption process.

6. Task Completion

   • Once you have successfully decrypted the file, reflect on the encryption and decryption processes.
   • Consider how encryption techniques like AES can be used to secure data and the importance of key management in cryptography.

7. Enjoy the Journey

   • Dive into the realm of encryption and decryption to uncover the secrets hidden within the encrypted file.
   • Embrace the challenge of decrypting the story about the mysterious hacker and enjoy the learning experience.