can anybody tell me how the value of the caCert[] variable in the CACert.ino file from the example https://github.com/esp8266/Arduino/blob ... CACert.ino was created? It seems to be a hexadecimal representation of the api.github.com root certificate in DER format. I want to connect to a different site with the WiFiClientSecure library but I don't know how to get the root certificate of this site converted into this format so that I can pass it to the WiFiClientSecure.setCACert_P function. And how to calculate the length of this certificate representation as defined in the same file and in this example "969"?
Thanks and best regards,
Michael