Determine the key of the Z-wave network

Hi all,

As I’m playing with a new controller and trying to “take over” the existing configured zwave devices I’m wondering if the network key the vera is using for it’s zwave network can be determined somewhere.
I’ve seen the backup contains two files called HW_Key and HW_Key2 and based on the info in them I’m guessing the files contain the network keys for Zigbee Network and the ZWave network.

Anyone else who has tried to determine the network key that’s being used for the Zwave network? (and would be able to tell if I’m on the right track)