disable encryption uart ble code

RE: disable encryption uart ble code

Petter Myhre — Tue, 19 Dec 2017 08:30:33 GMT

If the BLE_GAP_EVT_SEC_PARAMS_REQUEST event is not received the peer doesn't try to pair (and encrypt) the link and the link will not be encrypted.

RE: disable encryption uart ble code

Ali97 — Sat, 16 Dec 2017 03:53:40 GMT

Hi, I found the code you listed above. However, it seems that the program does not call it. Is there any way to make sure that BLE link is not encrypted? i.e. encryption is disabled.

RE: disable encryption uart ble code

Petter Myhre — Fri, 15 Dec 2017 11:54:49 GMT

That is correct.

RE: disable encryption uart ble code

Ali97 — Fri, 15 Dec 2017 11:33:51 GMT

Thank again petter for your comment. I have quick question just to make sure that I am on the right track; by disabling encryption on BLE link, data on the air will be whitened data (no encryption no other manipulation), right?

RE: disable encryption uart ble code

Petter Myhre — Fri, 15 Dec 2017 10:50:54 GMT

Shouldn't be too hard to find. It is in on_ble_evt() in main.c

RE: disable encryption uart ble code

Ali97 — Fri, 15 Dec 2017 10:37:48 GMT

Thank you Petter for your answer. I am using nRF5 SDK 12.2. And SoftDevice is 132..

Could you please tell me where (in the uart ble example) to find the segment of c code you suggest to modify?

Thank you again!

RE: disable encryption uart ble code

Petter Myhre — Fri, 15 Dec 2017 10:29:40 GMT

Usually the question is on how to enable encryption :)

I'm not sure what SDK and SoftDevice you are using, but you should handle the BLE_GAP_EVT_SEC_PARAMS_REQUEST event. Something like:

    case BLE_GAP_EVT_SEC_PARAMS_REQUEST:
        // Pairing not supported
        err_code = sd_ble_gap_sec_params_reply(m_conn_handle, BLE_GAP_SEC_STATUS_PAIRING_NOT_SUPP, NULL, NULL);
        APP_ERROR_CHECK(err_code);
        break;