I have worked on projects involving cryptography in my past. I understand some of the basic concepts that provide the security in cryptographic systems enough to be dangerous when discussing the topic, but I never became an “expert” on the subject. I found it a difficult subject to tackle, requiring a greater level of dedication and/or level of smartness than I was capable of. Nevertheless, it is a fascinating topic. I wrote about the extent of my exposure to the topic here.
https://www.quantamagazine.org/computer-scientists-achieve-crown-jewel-of-cryptography-20201110/
Splattered Brains 