Secure HTTP connection nRF9160

RE: Secure HTTP connection nRF9160

Øyvind — Wed, 28 Jun 2023 12:23:50 GMT

You can use the Certificate Manager through either LTE Link Monitor or cellular monitor. Adding the certificate as described in our documentation under Modem key management. You can also follow this guide on how to retrieve certificates: https://stackoverflow.com/questions/7885785/using-openssl-to-get-the-certificate-from-a-server

RE: Secure HTTP connection nRF9160

isurki — Wed, 28 Jun 2023 11:30:27 GMT

Thank you. I have read how to upload certificates using the "AT#XCMNG" command. However, I don't have a full understanding of certificates. Could you please explain how can I get a valid/correct Google CA certificate?

RE: Secure HTTP connection nRF9160

Øyvind — Wed, 28 Jun 2023 10:10:40 GMT

Ander, looking at the AT#XHTTPCCON command you need to add the sec_tag parameter in order to enable TLS (secure HTTP). You will need to add the correct Google CA certificate to a sec_tag and retest.

RE: Secure HTTP connection nRF9160

Øyvind — Wed, 28 Jun 2023 09:13:18 GMT

Thanks for providing these details. I've tested on my side and am able to get "Data received" in the browser, however, my SLM will return #XHTTPCREQ: -128. Might be some certificates missing. I have forwarded to our Serial LTE Modem developers.

RE: Secure HTTP connection nRF9160

isurki — Tue, 27 Jun 2023 09:04:38 GMT

Hi,

Sorry, I forgot to include more information. You are right, I am running Serial LTE Modem firmware, I didn't touch anything, it is factory firmware.

10:37:45.474 -> AT#XSLMVER

10:37:55.271 ->

10:37:55.271 -> #XSLMVER: "2.1.1"-CUSTOMIZED

Do you need more information?

Best regards.

RE: Secure HTTP connection nRF9160

Øyvind — Mon, 26 Jun 2023 12:11:02 GMT

Hello Ander,

What application are you running on the Actinius? The AT Client does not support AT commands with #, this is Serial LTE Modem application specific. What version of the nRF Connect SDK are you using on your side?

Kind regards,
Øyvind