By default, all Wireless ZigBee Zigbee devices out of the box start out with open interfaces for BLE and Zigbee communication for easy setup.Both , making setup simple.
During commissioning, the app:
Creates a network ID key and exchanges BLE security credentials to add a Wireless Zigbee device to a group.
Encrypts both BLE and Zigbee
...
communications
...
using secret keys
...
:
AES-128 for
...
Zigbee
AES-256-DfH for BLE
...
This ensures secure communication within the project.