I am looking to buy some Z-Wave gear starting of course with the Aeontec Z-Stick. Noticing some products talking about S2 security and even sounded like whatever that is, it won’t work unless all the devices support it. Anyone familiar with S2? Know if the Z-Stick supports it as didn’t seem so. The ZOOZ USB Z-WAVE PLUS S2 STICK ZST10 obviously by the name supports it but know most people get the Aeontec unit.
You should just include it using the standard secure functions - there’s nothing special as such. Maybe you will need to set the secure inclusion mode to “all devices” (I don’t know what the ZST10 is) but otherwise it should be a standard secure inclusion.
I’m not sure that’s really true. S2 has more features - it uses device specific keys so that different devices cannot receive data between other secure devices in the network. S2 also handles inclusion better and avoids potential vulnerability where the key can be sniffed.
However I think that the actual security is largely the same (I might be wrong about this - it’s been a while since I looked at the algorithm).
So, S2 is better - that’s for sure. But is it something that you really need.
We’ll definitely look at S2 in future, but there are other things on the list first.