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 ? 

[hiteshk014]

We're looking for L4 on both PB-GATT or when doing Mesh Proxy

 

[hiteshk014]

Our requirement is to enable L4 security, we're configuring BLE Mesh & BLE GATT (PB-GATT) both in our application, so as per above mentioned excercise we were able to experiment L4 with the help of peripheral lbs sample, we need to experiment the sample having BLE mesh & L4 security being enabled in configurations so that when proceed with BLE connection we need to add passkey while pairing.

nCS SDK we're referring is V2.9.0

Thank you,

[Elfving]

Hi,

As Hung is away at the moment, I'll take over this case. I believe you can enable L4 the same way you normally would, did you try CONFIG_BT_SMP_SC_ONLY?

Regards,

Elfving