The TOTAL time needed to decrypt the below cipher is :Consider a socnario in which we have a $3\mathrm{.}5$ MB encrypted message. We aim to decrypt this message by performing a brute$-$force attack on the cipher. The encryption key is $32$ bits in length, meaning we need to test all possible combinations of an $32-$bit key to find the correct one.The setup for this attack includes:$1.$ A desktop PC with a processor running at $2\mathrm{.}8$ GHz$.$Each Key combination requires $1\mathrm{.}75$ CPU eyeles to be fully tested$\mathrm{.}3.$ Once the correct key is identified, decrypting the message will take $4$ seconds per megabyte.Calculate the total time required to:$1.$ Perform the brute$-$force search to identify the correct key$\mathrm{.}2.$ Decrypt the message using the discovered key.