Tool/software:
I am new to IoT development and working with the CC3220SF device . The SSL certificate is currently embedded in the firmware and is generated using Let’s Encrypt.
The challenge is that once the device is deployed onsite, I will not have physical access to it for firmware updates. Since Let’s Encrypt certificates expire every 90 days, I’m looking for strategies to manage SSL certificate renewals or updates remotely.
Hi,
I think it is not a best practice use Let’s Encrypt certificate at embedded device, due to short expectation time.
There is no official way at SDK to remote certificate update. For updating files in filesystem you can use OTA update code. OTA update can be used for update of certificates at filesystem. But you need to be very carefully to not "take a saw to the branch we're sitting on".
Jan