Carlos wants to send a message to Alice so only she can understand it. He also wants to send a message to Bob so only Bob can understand it. How many private keys does Carlos need?
A) 1
B) 2
C) 3
D) 0
Answer: D
Carlos wants to send a message to Alice so only she can understand it. He also wants to send a message to Bob so only Bob can understand it. How many private keys does Carlos need?
A) 1
B) 2
C) 3
D) 0