P$.$MKT I Aaswer all

$(40$ prsi$)$

Alice and Bob wish to communicate sccurely by sending encrypted messagos to each other. They

may send up to $100$ or more messages to cach other in a session. Knowing that asymmetric

cneryption is computationally expensive and symmetrie encryption has key sharing problem. They

are willing to communicate using session key $($symmetric encryption$)$ but key sharing is a problem.

They are also willing to send at most two $(2)$ messages to each other using Asymmetric encryption

keys. Suggest a solution and Explain in details how they can communicate sccurely using a

scsion key