BLE Pairing and security

RE: BLE Pairing and security

Vidar Berg — Tue, 26 Apr 2022 13:43:28 GMT

Yes, the link will be encrypted after you have received the PM_EVT_CONN_SEC_SUCCEEDED event from the peer manager. For more information on how the security works BLE I recommend you take a look at this guide here: https://www.bluetooth.com/bluetooth-resources/le-security-study-guide/

RE: BLE Pairing and security

Swapnil Karkare — Tue, 26 Apr 2022 07:33:45 GMT

Hi,

Thanks for the response.

Can you please confirm that after Pairing and connection in "Just Works", BLE provide encrypted and secure communication?

Also, Could you please provide documents which will refere above statement?

RE: BLE Pairing and security

Vidar Berg — Mon, 11 Apr 2022 11:11:51 GMT

Hi,

I suggest you take a look at the Glucose Application. It supports LESC passkey pairing. You can use this implementation as a reference if you want to enable the same for another application.

Also, you can add this to gap_init() if you want to set a static passkey:

    ble_opt_t ble_opt;
    uint8_t passkey[] = "123456";

    ble_opt.gap_opt.passkey.p_passkey = passkey;
    err_code = sd_ble_opt_set(BLE_GAP_OPT_PASSKEY, &ble_opt);
    APP_ERROR_CHECK(err_code);

Best regards,

Vidar