How is the transport medium changing anything?
To me this is about having protocols that are suitable so not anybody can write to these labels without knowing a store secret or using replay attacks.
How is the transport medium changing anything?
To me this is about having protocols that are suitable so not anybody can write to these labels without knowing a store secret or using replay attacks.
> How is the transport medium changing anything?
it's mostly about efficiency. IR based, an employee needs to physically walk around. RF based, place a transmitter or two in the building and the system now works fully automated.
Sorry about not being explicit. I meant how it changes anything security-wise.
With the same vulnerable protocol the RF system is as easy to attack with bigger consequences then it seems....
The RF system doesn't use the same protocol, it's a new protocol (to potentially hack and reverse-engineer).
The early shelf-label systems were IR-based, sold in bulk and were programmed manually using handheld devices held against them.
Most shelf-label solutions of today are part of a service-model, where gateways are mounted in the store to wirelessly update any label on price-change, often orchestrated remotely so store-chains can update all shops simultaneously.