CC2538: Trust Center Rejoin

Dhanraj

Part Number: CC2538
Other Parts Discussed in Thread: Z-STACK

Hello,

In the z-stack 3.0.2 release note ,It is mentioned that " Trust Center Rejoin is not recommended to be used since it may expose the network to security vulnerabilities"

Can anyone elaborate on this point?

over 7 years ago

0 YiKai Chen over 7 years ago

Guru 735695 points

Try to refer to www.silabs.com/.../zigbee_3_0_preventio-EIW3

0 Ryan Brown1 over 7 years ago

TI__Guru**** 219997 points

Hello Dhanraj,

What this basically means is transmitting NWK keys over the air which could be picked up by unwanted devices, this is especially dangerous in Z-Stack HA 1.2 since the TCLK is not updated. The best way to avoid malicious attacks is by implementing Z-Stack 3.0 install codes.

Regards,
Ryan

0 Dhanraj over 7 years ago in reply to Ryan Brown1

Guru 14820 points

I am using "Private TCLK" instead of "global TCLK" , so is that fine?

0 YiKai Chen over 7 years ago in reply to Dhanraj

Guru 735695 points

That’s OK but will make your device incompatible with others.

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CC2538: Trust Center Rejoin