Https, C++ application, libraries, articles. video?

Question

Qt

All I understood from digging Google is that the https request must be sent to port 443 and it uses SSL encryption.
I’ve been digging Google for a week now and I can’t find the necessary information (mat part).
Where can you read how all this is implemented, how requests are sent, the certificate is checked, the key is generated, and most importantly, when. Is the request itself encrypted or just part of it?
In general, the goal in C ++ is to make a client for sending / receiving data from a web server.
In mathematics, I'm not an expert, so a library is needed for SSL.
Maybe there are articles, video tutorials, well, on the edge of the book.
Ps I figured out http for a long time, but I don’t smoke with https encryption.

Answer 1

Qt supports encryption using the OpenSSL library
It is not advisable to manually implement encryption over TCP