L4 security enable in nRF54L15 having nRF Connect SDK 2.7.0

RE: L4 security enable in nRF54L15 having nRF Connect SDK 2.7.0

Elfving — Mon, 20 Jan 2025 13:22:58 GMT

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

RE: L4 security enable in nRF54L15 having nRF Connect SDK 2.7.0

hiteshk014 — Thu, 16 Jan 2025 07:00:39 GMT

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,

RE: L4 security enable in nRF54L15 having nRF Connect SDK 2.7.0

hiteshk014 — Mon, 13 Jan 2025 05:35:47 GMT

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

RE: L4 security enable in nRF54L15 having nRF Connect SDK 2.7.0

Hung Bui — Fri, 10 Jan 2025 12:44:56 GMT

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 ?

RE: L4 security enable in nRF54L15 having nRF Connect SDK 2.7.0

hiteshk014 — Fri, 10 Jan 2025 10:18:37 GMT

we are using nRF54L15 chipset on nRF connect SDK 2.9.0

RE: L4 security enable in nRF54L15 having nRF Connect SDK 2.7.0

Hung Bui — Tue, 07 Jan 2025 10:14:08 GMT

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 ?

RE: L4 security enable in nRF54L15 having nRF Connect SDK 2.7.0

hiteshk014 — Tue, 07 Jan 2025 06:35:36 GMT

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

RE: L4 security enable in nRF54L15 having nRF Connect SDK 2.7.0

Hung Bui — Thu, 02 Jan 2025 12:24:26 GMT

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