Hello,
I apologize if this is a simple question. I am working with the nRF9161-DK and am using the Serial LTE Modem application. The ultimate goal is to send data via POST HTTPS to a cloud API.
I am able to establish connections with #XHTTPCCON and send requests with #XHTTPCREQ to sites on port 80, but I need to set up TLS to communicate with the cloud API. I understand I would need a certificate in the %CMNG certificate manager and to use the sec_tag parameter in the #XHTTPCCON command, but I am unsure which certificate I need, or how I would go about getting/generating that certificate.
This is my %CMNG=1 command:
> AT%CMNG=1
%CMNG: 16842753,0,"2C43952EE9E000FF2ACC4E2ED0897C0A72AD5FA72C3D934E81741CBD54F05BD1"
%CMNG: 16842753,1,"6A31C24E5D74552DEC38BCE12F035B2C945E11E0A485ADBD378E60B5E8D40509"
%CMNG: 16842753,2,"44994E0C18A1FBF983774BE5F7F7F877E5D251A66B2E3F68E47FDF5C173624C3"
%CMNG: 4294967292,11,"672E2F05962B4EFBFA8801255D87E0E0418F2DDF4DDAEFC59E9B4162F512CB63"
%CMNG: 4294967293,10,"2C43952EE9E000FF2ACC4E2ED0897C0A72AD5FA72C3D934E81741CBD54F05BD1"
%CMNG: 4294967294,6,"8BB32C76C95350D9711BFF02921AE4362376E1892D8EC1A9F6A0516AC5BCA97E"
These certs came with the DK. What are these certificates? Can I use them for TLS for my goal? When I attempt to use any of these certificates in #XHTTPCCON to connect to google.ca on port 443, I get an error.
Any guidance on how to use HTTPS with the serial LTE modem application would be greatly appreciated.