I recently did some work as a side project for company called Patero that involved creating quantum hardened prototype of one of their products. This post discusses how to secure state-of-the-art cryptographic protocols against attacks from (future) quantum computers. It starts off with an introduction to how crypto protocols in general are constructed, to serve as an introduction for those of us who haven't done much crypto work in the past.
You can either watch the video below or read the full post for a text version.Video auf Deutsch
Read the post.