Actually, in addition to increasing the power of the lasers, they should use the newly developed green diode lasers instead of the boring IR ones. If enough buildings used them, we would get to see a nice laser light show each night:)
Wouldn't this make your network a easy target for packet sniffing? All that a potential culprit need to is to point his/her own sensor skyward and they have read full access.
Similarly it would be trival for such an attacker to send their own data, issuing their own commands to machines etc...
This scenario, to me, obviates the need for encryption in such systems, increasing cost and complexity.
Having made these points, I realise that the problems apply to any unguided media (e.g. microwave links) and not just to 'open' light systems.
Slashdot Mirror
Wouldn't this make your network a easy target for packet sniffing? All that a potential culprit need to is to point his/her own sensor skyward and they have read full access.
Similarly it would be trival for such an attacker to send their own data, issuing their own commands to machines etc...
This scenario, to me, obviates the need for encryption in such systems, increasing cost and complexity.
Having made these points, I realise that the problems apply to any unguided media (e.g. microwave links) and not just to 'open' light systems.