Computer Science Teacher

For the last several years, I have been playing around with simple cryptography. I have made some of results of this available as a free PDF...

For some time I have been writing up information about some historic, and simple compared to modern, cryptonymic algorithms. They are collec...

The last few years have seen a huge expansion in the number and types of cyber security courses in high schools. Much of this has been drive...

tl;dr Book recommendations: Overnight Code: The Life of Raye Montague, the Woman Who Revolutionized Naval Engineering Code Girls: The Untol...

Day two started off great as I connected with several people from my home CSTA Chapter –CSTA New Hampshire. The CS community in New Hampshir...

My latest discovery, thanks to Doug Peterson , is Crazy Phrase . Crazy Phrase is something of a variation of Wordle except that in Crazy Phr...

I’ve never felt less prepared to write a look back on CS education than I do today. I’ve been retired from most of the year and the world ha...

Recursion was never a big part of my toolbox but I am starting to appreciate it more recently. Regular readers know that I have been writing...

Bacon's cipher is a fairly well-known and simple cipher. Its considered a form of steganography . Unlike most steganography, the code i...

No morning help desk duty for me today so I watches the whole “Morning Java” session. For those of you not at CSTA, Moring Java was an intro...

What a strange year it has been. The pandemic and more took a lot of the steam out of what I had hoped to dig deeply into in 2020. Surviving...

I've been playing with simple cryptography. Mostly stuff that was solid before computers. Just for fun mostly but some of it may make fo...