I am using a SARA U270 and I am trying to send HTTPS post to a server. I use the AT commands below to set up and activate a PSD connection, set a TCP socket, enable SSL/TLS on that socket and then carry out the HTTP/S setup. Unfortunately after the setup every time I post to the server it fails.
TCP Socket creation
TCP Socket (enable SSL/TLS on socket 0 using default security profile)
HTTP/S set up
From what I have read it would seem that I do not need to have any certificates on my device if I am using the default security profile 0 (when enabling SSL/TLS on the TCP socket and enabling HTTP secure posts). I was hoping some could tell me if this the case or do I still need a certificate/key?
If I do need a certificate/key could someone give me some detail on exactly what I need to do? By this I mean do I need to physically load a key to my device from a file my server admin sends me? Do I load a public or private key? etc. Sorry if my questions seem easy, I quite new to HTTP posting and server communications