nRF52840 - MQTT with TLS ?

[ENC]

Hi,
I'm working on a project with the nRF52840 PCA10056 board. Using the IoT LwIP MQTT example, I can communicate with the insecure MQTT. However, I need to provide security for this connection.

I don't know where to add the ca certificate, server key, server certificate, client key and client certificate files that I created using the OpenSSL program in the MQTT LwIP file.

How can I use MQTT + TLS together? How do I need to make modify to the code?

[Sigurd]

Hi,

If you are developing an IPv6-based application on a nRF52840, I would recommend the Thread protocol.

nRF5- SDK: https://www.nordicsemi.com/Software-and-tools/Software/nRF5-SDK-for-Thread-and-Zigbee

nRF Connect SDK: http://developer.nordicsemi.com/nRF_Connect_SDK/doc/1.5.1/nrf/ug_thread.html

The nRF5 SDK IoT libraries was discontinued in the least nRF5 SDK version, nRF SDK 17.0.2, and IoT LwIP MQTT example was removed. But maybe this post here might show you how to configure the certificates.