is it possible to decrypt the BT mesh packets that device key encrypted with nRF 52840 dongle

[xiaolongba]

Hi experts

i am using nRF Sniffer to decrypt the BT Mesh packets with Wireshark, it can work smoothly. However, i tested and found that the packets device key encrypted cannot be decrypted and packets using netkey or appkey are all can be decrypted. the details pls refer to the following snapshots:

can you give me a hand?

many thanks.

[Hung Bui]

Hi Helon, 
I hope someone here have a solution for you. We also struggling with this. 
Please be aware that the BLE mesh plugin for Wireshark was not developed by us. You may need to send your question to Wireshark support. 

We unfortunately don't usually use Wireshark and nRF sniffer for debugging mesh communication. 

[xiaolongba]

Hi Hung Bro,

Yes, i can understand. i just want to know if it is related to the firmware. if not, the root is caused by the Wireshark. of course, i reported this issue to Wireshark support already. any updates i will let you know

[Hung Bui]

Ok, let us know if you find anything. 
Please be aware that the device key is generated randomly for each provionee. So you need to catch the key when the device being provisioned.