[Wex19] Unit 5, Lessons 17, 22-24.
https://www.owasp.org/index.php/Main_Page generally, and in particular:
https://github.com/OWASP/Top10/raw/master/2017/OWASP%20Top%2010-2017%20(en).pdf
https://almanac.httparchive.org/en/2019/security
Alice and Bob Encryption