Description:

$1)$ Symmetric Encryption

a$.$ Explain the concepts of symmetric encryption algorithms $($e$.$g$.,$ AES, DES$)$ and their key management.

b$.$ Analyze strengths and weaknesses of symmetric encryption in real$-$world scenarios.

c$.$ Choose a specific scenario $($e$.$g$.,$ secure file transfer, communication between devices$)$ and propose a symmetric encryption solution, including algorithm choice and key management strategy.