sovay: (Cho Hakkai: intelligence)
sovay ([personal profile] sovay) wrote2022-05-11 06:58 pm

I've been moving with the bodies that move to a different sound

I just taught my niece a simple substitution cipher and within ten minutes she had correctly deciphered a short message I had written to her. I could watch her make the connections, exclaiming as she recognized individual encrypted letters without having to refer to the key. Then she drew a picture at the bottom of the page to make it clear she had not just copied out but understood. Morse code, Playfair, one-time pads, here we come.
sorcyress: Drawing of me as a pirate, standing in front of the Boston Citgo sign (Default)

[personal profile] sorcyress 2022-05-12 11:24 am (UTC)(link)
I don't know how you feel about mid-century boy's books, but "Alvin's Secret Code" by Clifford B Hicks is, I feel, the gold standard for "child learns about cryptogruffy" (misspelling intentional)

Some of the adventure story plot is a little unrealistic, but the background cryptography lessons are *fantastic*. You and she could make scytales!!!

~Sor