Use NRF52832 with BLE version 4.2 only

[Maxim]

Hi,

I'm actually working on BLE product, with NRF52832, where security is really important. As I know BLE 4.0, 4.1 versions are not really secure with the key pairing (no Diffie Hellmann) which is corrected in 4.2 version.

My question is can I disable access 4.1 and 4.0 for differents equipement like Smartphones, in order to not detect the NRF52832 if they are not BLE 4.2 compatible.

If it's possible, how to do that ?

Thanks you in advance !

[Jørgen Holmefjord]

You can configure your device to require pairing and bonding using LE Secure Connections with man-in-the-middle (MITM) protection. This will ensure that only devices supporting LE Secure Connections can connect to your device.

Check out the BLE LE Secure Connections multirole example in the SDK.

[Maxim]

That's what exactly what i'm looking for, thanks you !