Private Set Intersection $($PSI$)$ can be used to detect malware or suspicious activities within a

network by sharing and analysing data held by different nodes $($e$.$g$.,$ such as routers$),$ while

preserving each node$$s data privacy$($Answer the questions down with citation$($References$)$for the answers$)$

$1-$ Design a protocol that performs PSI using a cryptographic hash function. Your protocol

should involve three parties: Client $1,$ Client $2,$ and a Server, where Client $1$ has a set $1,2,$

$5,9$ and Client $2$ has $5,8,11.$ The Server does not have any input

$2-$ Implement the PSI algorithm you designed in Python, with appropriate comments in

code. Hint :the server will receive some values from the two clients and send them back some

results.

$3-$ Discuss how your implementation ensures security and privacy.