Possible improvement for encryption from a plugin

[OshinoMoumou]

Greetings!
I noticed that in plugin.video.gdrive/resources/lib/encryption.py, the code referred a StackOverflow post, while a recent comment to it pointed out a few short comings of the answer.
I'm trying to learn the usefulness of such small updates on StackOverflow. Does the comment make sense to you? Would this comment help improve your code? I understand that such improvement might not be helpful in real life situation. In that case, do you think this comment can help prevent future bugs (for example, when the code were reused somewhere else)?
I'll really appreciate it if you could kindly give me some feedback or suggestions. Thank you very much for your time.
Have a nice day!