Q1) An organization has 250 members. It is desired that each member of the organization be able to communicate securely with any other member, without any other member being able to decrypt their messages. (Explain the details of each question below)

a. Determine the total number of keys that are needed for organization if symmetric cipher is used.

b. What is the number of keys that are required for each member if symmetric cipher is used.

c. What is the total number of public key(s) and private key(s) are required for the organization if asymmetric cipher is used.

d. How many public key(s) and private key(s) are required for each member if the asymmetric cipher is used.