L4 security enable in nRF54L15 having nRF Connect SDK 2.7.0

[hiteshk014]

Hello Team,

Please help in guiding to enable L4 security & detailed guide to enable L4 in latest nRF Connect SDK having nRF54L15 chipset on nRF connect SDK 2.7.0

Thank you,

Regards,

Hitesh

[Hung Bui]

Hi Hitesh, 
As far as I know nRF54L does support L4 security out of the box. I would suggest you to take a look here: 
https://academy.nordicsemi.com/courses/bluetooth-low-energy-fundamentals/lessons/lesson-5-bluetooth-le-security-fundamentals/topic/security-models/
Level 4 is achieve with Authenticated LE Secure Connections pairing with encryption 

[hiteshk014]

We need to have this L4 security on BLE Mesh application

do we have any sample or document that helps us in adding this L4 security over BLE Mesh

[Hung Bui]

Hi Hitech, 

Please describe what's exactly you want to do with L4 security on BLE Mesh, which device you want to pair/bond to  ? 
What did you implement ? 

[hiteshk014]

we are using nRF54L15 chipset on nRF connect SDK 2.9.0

[Hung Bui]

Hi,
You haven't answered my questions. What do you want to implement L4 security on ? L4 security is not applied for  Bluetooth Mesh, it's for Bluetooth Low Energy connection. 
Are you asking about L4 security when doing PB-GATT or when doing Mesh Proxy ?