Who might Bob,Alice be? .well,real-life Bobs and Alices! Web browser/server for electronic transactions (e.g.,on-line purchases) Oon-line banking client/server DNS servers routers exchanging routing table updates other examples? 8:Network Security 8-68: Network Security 8-6 Who might Bob, Alice be?  . well, real-life Bobs and Alices!  Web browser/server for electronic transactions (e.g., on-line purchases)  on-line banking client/server  DNS servers  routers exchanging routing table updates  other examples?