How to organize licensing of your program according to the type of key collector, fast trust?

Question

.NET

Hello
There is an idea for writing a program, and I'm sure it will be in demand.
And the program will need to be sold. 1 license for 1 computer.
I liked the idea of ​​key collector, fast trust.
There, the user generates a unique code according to the Hardware ID and sends it to the developer, in response, based on the code, he generates a license file lic.license and gives it to the buyer. And the buyer throws it into the folder with the program and everything works fine.
I plan to write using devexpress as fast trust.
The license will not be permanent, but temporary, for a year, after a year - license renewal.
How can this be organized? Maybe there are some ready-made solutions?