10. A network has computers. All communications within the network have to be encrypted. Each pair of computers needs one key for encryption, how many keys will have to be distributed by a company’s Key Distribution Center if all keys have to be different?

Question

10.	A network has   computers. All communications within the network have to be encrypted. Each pair of computers needs one key for encryption, how many keys will have to be distributed by a company’s Key Distribution Center if all keys have to be different?

anonymous · Answer

How many computers are there?

anonymous · Answer

"n" sorry

anonymous · Answer

k=n(1/2c)

is that what you're looking for?

anonymous · Answer

To be honest, I'm not sure... What would c stand for in your solution?

anonymous · Answer

I'm sorry. Forget that equation. 
k=1/2n

where k stands for the number of keys and n stand for the number of computers

anonymous · Answer

OK, That makes sense I guess. Thanks!

anonymous · Answer

You're welcome