History of Public-Key Cryptography

A little over the top in parts...

"The science of secret codes is proving to be essential technology for securing the Internet, and the techniques developed by Diffie and Hellman are some of the most useful .... and parents use them to protect their children against pedophiles and pornographers trolling the Internet."

Non-PGP users should try https://encrypt.to/ to send encrypted pgp messages.

Insert NewEgg joke here.