Generating a TLS certificate on MicroPython

[jouellnyc]

Hi Everyone

My research is suggesting that there is no method to create a TLS cert using current micropython libraries on the micro-controller itself. I'm trying to use it for the microdot server I have running . Is that correct?

My use case is that I would like to send a micro-controller to my father/family and have him be able to set it up through a short "wizard" workflow that I have set up instead him using USB/TTL/etc. I.E Avoiding manual steps. One of the steps is submitting the Wi-Fi password of his network at setup time so that the micro-controller will then be used to connect to his network.

So automating an tls cert generation would be a nice way to finalize this.

(I could just send him one pre configured, but where's the fun in that :) )

As always thanks in advance!

[jimmo]

That's right, there isn't currently a way to generate certs on-device. Would be neat but I'm not sure the code size increase would be justified.

[jouellnyc]

Thanks jimmo

Right. I'm not sure it is either. But that again, maybe I am the first of thousands looking to do this :) At least for this use case there are workarounds and mitigations as the AP still uses WPA2-PSK. And if someone really wanted, they could go into a room with little connectivity like a basement and submit the wifi cred for some added protection.

Again, thanks for the reply.