I am using the sim800C GSM modem to connect to AWS IoT MQTT broker.
I have the device certificate (CA, Client & Private Key) files. I am able to create and import the ROOT certificate on to the modem easily. However, I am not clear how to import the client and private key files.
The AT+SSLSETCERT command seems to suggest that the Client and Private Key (PK) files must be imported as one file, I am not sure about it, Need inputs here.
- I imported only the Client cert. file without password parameter as its optional, the AT+SSLSETCERT was successful but could not connect to AWS simply got ERROR on sending AT+SMCONN.
- I merged both the Client & PK cert. files, the AT+SSLSETCERT fails to import hence cannot connect to AWS.
I also tried the .p12 format using openssl which combined both Client & PK cert. files.
- With pass phrase the AT+SSLSETCERT was successful but could not connect to AWS, kept getting ERROR on sending AT+SMCONN.
- Without pass phrase AT+SSLSETCERT fails to import the file (same as 2).
Has anyone got sim800c working with AWS IoT? Please suggest!