Security Corner

Aug 31 2011   1:41AM GMT

Humor: The Yorkie cipher

Ken Harthun Ken Harthun Profile: Ken Harthun

If you have been reading this blog for any length of time (and I hope you have!), you know that I’m a big fan of ciphers. In my next post, I’m going to talk about Steve Gibson’s “Off the Grid” paper encryption system; that one is a stroke of genius. It’s based upon Latin Squares with a twist. It works. It takes an unique approach to randomness.

Well, I realized that there isn’t anything too much more random than the behavior of my pet Yorkie, Missy. It’s always a combination of play bone, growl, bark, lick my leg, lick my arm, hide the bone, bark because I can’t find the bone, fetch the bone, growl, bark, lick my wife’s leg (rarely), run to the door, pee on the floor, ad nauseum. Get the idea? Truly random. No perceivable pattern (right now, she’s throwing “poor pitiful poochie” into the mix since I’m ignoring her). Oh, and she just nipped me on the leg. Truly random, no?

So, I’ve created a Yorkie cipher that is completely unbreakable. Here’s the cipher:

1. Create a key based on Yorkie behavior: bark=b, growl=g, hide bone=h. you get the idea.

2. Write down the letter for what the Yorkie is doing at least for 20 repetitions, then take the last four characters. In my case it was bone, growl, lick, fetch: bglf.

3. Reverse: flgb.

4. Ask Yorkie what that means.

5. Give up because this is just a joke.

Did I have you going there? Sorry. It’s just time to lighten up.

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