nRF9160 builtin CA root certificates

[kristian_meshtech]

For nRF9160, is there an overview of the builtin CA certificates?

I have now deleted all certificates I added manually with:

int nrf_inbuilt_key_delete(nrf_sec_tag_t sec_tag, nrf_key_mgnt_cred_type_t cred_type);

but I am still able to connect to Azure IoT Hub..

More specifically, are some of these root certificates built into the modem firmware?

• DigiCert Baltimore Root
• DigiCert Global Root CA
• D-TRUST Root Class 3 CA 2 2009

[Christopher]

You can list and read the assets (certificates, keys) provisioned on your kit using the "AT+CMNG" command.

Use the Nordic-proprietary "AT%CMNG=1" command to list all credentials. You can also read them, see the "nRF91 AT Commands" document for more details.

The asset tracker application connects to the AWS IoT Cloud. The Amazon root CA is provisioned, see docs.aws.amazon.com/.../managing-device-certs.html.