[LINK] How fast is the NBN?

[Hamish Moffatt]

On 04/03/16 09:33, Karl Auer wrote:
> - wireless is a broadcast medium and thus trivially eavesdroppable. To 
> make it NOT eavesdroppable requires crypto. Crypto requires agreement 
> between the AP and the client, and crypto steals bandwidth. This has 
> to be unique for every client/AP pair. This is a huge bookkeeping 
> exercise that a) will fail b) will cause regular issues and c) will 
> cost a lot of money. Fibre does not require any such protection 
> because it is not a broadcast medium. 

Actually PON (passive optical network, the type of fibre install used 
for FTTP) IS a broadcast medium and also needs encryption to prevent 
eavesdropping.

https://en.wikipedia.org/wiki/Passive_optical_network


Hamish