Key in Ransomware $(10$ points$)$ To implement a ransomware, you need an encryption function. Generally speaking, you can choose either a symmetric encryption scheme $($e$.$g$.,$ AES$)$ or an asymmetric encryption scheme $($e$.$g$.,$ RSA$).$ If you choose to use AES $(3$ pt$)$ Where should the encryption key be generated? How can the attacker get the key? If you choose to use RSA $(3$ pt$)$ Where should the encryption key be generated? How can the attacker get the key? Compare these two approaches If the ransomware targets encrypting many files on a victim's computer, which approach will you choose? Why? $(2$ pt$)$ Compared with AES$-$based ransomware, are there any advantages to using RSA in the ransomware? $(2$ pt$)$