Task $1\mathrm{.}1$: Brute$-$force Weak AES Thanks to the small key space, a brute$-$force attack on Subst$-$Rijndael.crypt becomes a reasonable technique to break the outer AES encryption layer. Write a short prototype script to automate the attack. To this end, you must find a criterion that allows you to automatically distinguish the right key from wrong ones. The decryption shall be computed and stored in Subst.txt $($in plaintext format$)$ for further processing in the next step. Furthermore, you should save the discovered AES key in aes.key as a hexadecimal text string.

Hints: $1.$ Notice that there are already many implementations $($libraries$)$ available to apply AES encryption and decryption, e$.$g$.,$ PyCryptodome to interface with Python. $2.$ Take a look at Shannon entropy. How can it help to find out the correct key among all possible combinations?