Securing Communications with SSL/TLS: A High-Level Overview
I wrote a long article for 
about SSL/TLS, attempting to explain it to a lay audience. I wrote another piece for admins on how to use CA.pl, which TidBITS didn’t pick up, and a third piece about a couple shell scripts I wrote to help run a Certificate Authority, called cert.command & sign.command. I hope you find them interesting and useful.
TidBITS: Securing Communications with SSL/TLS: A High-Level Overview
Full Series (3 parts, with scripts): Securing Communications with SSL/TLS
