I am trying secure MQTT with AWS using SIM808 module.
Non secure TCP communication works fine.
Bit with AWS it permits only Secure connection.
I tried with creating a certificate using AT+FSCREATE, AT_FSWRITE commands
Setting SSL certificate with SSLSETCERT
AT+SSLSETCERT requires a password.
The certificate AmazonRootCA1.pem is downloaded from Amazon cloud. There is no password associated with that.
Only additional files downloaded are c906a347b6-private.pem.key and c906a347b6-public.pem.key.
But the length is more than 32 bytes.
I tried make password field NULL like
AT+SSLSETCERT=“C:\User\CA.pem”,"" reports +CME ERROR: Param value range beyond ERROR
How can I solve the situation??
Any references or workarounds might be helpful.
Thanks In advance