Telling Cyber Security Stories … and Coffee Cups

In Cyber Security we like to talk about stories, and to relate them to real-life. So Bruce Schneier — the person who got me hooked on cryptography — came up with a whole lot of roles. The most important were: Bob, Alice and Eve. But there were a whole lot of other characters… can you find them from this picture:

Image for post
Image for post

I will put the answers way down the page …

Here are the characters we use for Bob, Eve, Alice and Trent (in a clockwise direction starting from the large graphic):

Image for post
Image for post

I even has a T-shirt with Eve on it and some ciphers:

Image for post
Image for post

And some props:

Image for post
Image for post

And I even have them on the wall of my office:

Image for post
Image for post

So when I go into the Starbucks at Bruntsfield (just down the road from our Merchiston Campus):

Image for post
Image for post

I like to give my Cyber Security name on the coffee cup, so I give them my Cyber name. So here they are … first I asked for Carol, but they give me “Karol”:

Image for post
Image for post

And I really felt like a trusted person the day I used “Trent”:

Image for post
Image for post
Image for post
Image for post

And then I was the evil one (Mallory), but you can tell they didn’t quite believe my name:

Image for post
Image for post

Then “Bobalice” — pronounced “Bob -a-leese” … sounds kinda Italian:

Image for post
Image for post

And then “Bob — eve”, which definitely sounds Italian:

Image for post
Image for post

And for Walter — the warden — I had to try twice:

Image for post
Image for post
Image for post
Image for post

And when I finally called myself “Eve”, I got this:

Image for post
Image for post

Forget those people who scare you about cyber security. It’s also fun and is helping build a new world!

How many did you get? Here’s the answers:

Image for post
Image for post

Written by

Professor of Cryptography. Serial innovator. Believer in fairness, justice & freedom. EU Citizen. Auld Reekie native. Old World Breaker. New World Creator.

Get the Medium app

A button that says 'Download on the App Store', and if clicked it will lead you to the iOS App store
A button that says 'Get it on, Google Play', and if clicked it will lead you to the Google Play store