Question

The total number of keys required for a set of n individuals to be able to communicate with each other using secret key and public key crypto-systems, respectively are: (A) n(n-1) and 2n (B) 2n and ((n(n – 1))/2) (C) ((n(n – 1))/2) and 2n (D) ((n(n – 1))/2) and n [closed]

Comments

https://gateoverflow.in/3384/gate-it-2008-question-70#:~:text=The%20total%20number%20of%20keys,(%20n%20%E2%88%92%201%20)%202%20and