CC2538: What is Differnce between TC Link Key & Install Code

Install codes enhance network security by avoiding APS encryption of the NWK key using the Global Trust Center Link Key (TCLK) typically required for joining devices. Using the key derived by the install code, which is shared between the Trust Center and joining device, ensures that no globally-known key is used to encrypt data over-the-air. In this part of the lab, we are going to set a shared install code between two devices to demonstrate this functionality. You can read Zigbee spec for details.

Hello YiKai Chen,

Thanks for the information,

I would like know some more.

1. The default TC Link Key value is "ZigbeeAlliance09", is it standard value we have to follow OR we can use any other values?
2. What is the recommended the TC Link Key value?

3. Same for the Install Codes, Is it devices specific or common for all devices?

Regards,

Shiv Patil.