Driftwood Public Library Follow-Up

Driftwood Public Library is great! I had a wonderful time in Lincoln City speaking about secret societies and cryptography. Links to my slides are below.

Secret Societies in Fiction How Computers Changed Cryptography

For a bibliography for “How Computers Changed Cryptography”, check my notes for my OMSI Science on Screen talk.

Also, I would like to thank the ‘D’ Sands Condominium Motel for sponsoring the talks and providing me with a really lovely room.

My view was great.

This is the view from my motel room balcony at the ‘D’ Sands.

OMSI Science on Screen Wrapup

Zimmerman Telegram

My talk at OMSI last night, “Computers and the Dawn of Modern Cryptography,” went really well. It was a great crowd and there was a good Q&A session afterwards. I’m going to keep this post really brief. First, there will be slides for my talk. Following that will be a brief bibliography if you’re interested in learning more about this fascinating topic.

Click here to download my slides.


  • Singh, Simon. The Code Book: The Science of Secrecy from Ancient Egypt to Quantum Cryptography. Reprint edition. New York: Anchor, 2000. This book is the best resource I’ve found for a logical breakdown of how cryptography and cryptanalysis worked for WWII cryptology.
  • Boone, J. V. A Brief History of Cryptology. Annapolis, Md: Naval Institute Press, 2005.
  • Copeland, B. Jack, ed. Colossus: The Secrets of Bletchley Park’s Codebreaking Computers. Oxford ; New York: Oxford University Press, 2006. I can’t wait to explore this book more! It is a massive collection of articles and papers from a wide array of authors.
  • Drea, Edward J. MacArthur’s ULTRA: Codebreaking and the War against Japan, 1942-1945. Modern War Studies. Lawrence, Kan: University Press of Kansas, 1992.
  • Wilcox, Jennifer, United States, National Security Agency/Central Security Service, and Center for Cryptologic History. Sharing the Burden: Women in Cryptology during World War II. Fort George G. Meade, Md.: Center for Cryptologic History, National Security Agency, 1998.

In addition, almost all of the photos and information on individual cipher machines can be found at Crypto Museum. This is a rich and bountiful resource for those interested in the internal workings of modern encryption.

OMSI Science on Screen: The Imitation Game

On March 28th, I will be giving a lecture called “Computers and the Dawn of Modern Cryptography” at OMSI as part of their Science on Screen program. I’ll be speaking and answering questions just before a screening of The Imitation Game, starring Benedict Cumberbatch and Keira Knightley. I am really excited about this opportunity! Please come down to OMSI for an informative lecture and an excellent film.

Buy Tickets Here

From StartCom to Let’s Encrypt

This past Fall, a bunch of big names removed StartCom from their trusted SSL Certificate Authority list. As a result, when I renewed my SSL certificates this year, I went with Let’s Encrypt. It was a pleasant experience, because Let’s Encrypt uses a command-line client called Certbot that does most of the heavy lifting for you.

After certificate renewal, everything is still looking pretty good. Please let me know if you have any SSL problems with my website through the contact form.

Screenshot from 2017-01-19 16-16-45

How to Increase Your Privacy on the Web

This week, I’m going to share a few links about how to lock down your PC to increase your privacy on the Web. There are a number of things that can be done, even if it’s something as small as turning on tracking protection in Firefox. As I’ve written about many times, our privacy has been under attack since before the Internet existed. You are not powerless, regardless of what you may think.

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