$3.(10$ pts each$)$ Consider RSA with p $=7$ and q $=13.($a$)$ What are n and z $?($b$)$ Let e be $17.$ Why is this an acceptable choice for e$?($c$)$ Find d such that de $=1($mod z$).($d$)$ Encrypt the message m $=9$ using the key $($n$,$ e$).$ Let c denote the$$corresponding ciphertext. Show all work$\mathrm{.}3.(10$ pts each$)$ Consider RSA with p $=7$ and q $=13.($a$)$ What are n and z $?($b$)$ Let e be $17.$ Why is this an acceptable choice for e$?($c$)$ Find d such that de $=1($mod z$).($d$)$ Encrypt the message m $=9$ using the key $($n$,$ e$).$ Let c denote the$$corresponding ciphertext. Show all work.Further suppose that by accident, each ISP has configured its AP to operate over channel $11.$ Will the $802\mathrm{.}11$ protocol completely break down in this situation? Discuss what happens when two stations, each associated with a different ISP, attempt to transmit at the same time.