Creating a ECDSA signature for a JWT to use on Google IoT Core connections

[WizKid32]

Hi,

I am currently working on a project that requires the GCP IoT Cloud Core services and I need help generating the JWT signature using ECDSA. I am aware that the ESP32 has embedded tools at its disposal to help, including the ecdsa.h file. My problem is just that I have no idea as to how to use the tool to sign the JWT token.

Any help will be greatly appreciated.