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 cryptosystems, respectively are:

Answer 1

Answer:

Public key required would be = 2n

Secret key required would be =(n-1)n/2

Step-by-step explanation:

Public key required would be = 2n   as there are n individuals so 1 + 1 = 2 ( 1 private & 1 public) for each individual to communicate with other

Secret key required would be = (n-1)n/2

as each individual required n-1 keys to communicate with another n-1 individuals.  So total would be n(n-1) but as it comes in pairs so it will be common for any two individuals in pairs

so total Secret key required would be =(n-1)n/2