Usage of pm_lesc_public_key_set() in peer manager

[Daniel Dakhno]

Hi,

I am trying to implement LESC bonding into my nRF51 application. After a lot of debugging, I assume that pm_lesc_public_key_set() needs to be called before any secure pairing can succeed.

My question is:

• How/when do I need to call that function?
• How do I generate such a public key?
• Do I need to keep the key secret?

Kind regards,

Daniel Dakhno

[Sigurd]

Hi,

This example shows you how to use this functionality.

https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.sdk5.v12.3.0/ble_sdk_app_multirole_lesc.html

[Daniel Dakhno]

Thanks, but I still don't quite understand whether I need to keep the private key secret.

[Sigurd]

Daniel Dakhno said:

Thanks, but I still don't quite understand whether I need to keep the private key secret.

Yes, keep it private. If the private key is known, the data can be decrypted by an attacker.