Are the ciphers prime-phobic?

Dan Johnson recently posted a really curious discovery about the 340-character cipher on his blog. First, number each of the positions of the cipher from 1 to 340. Then, mark each of the positions occupied by a symbol, the most…

Klaus Schmeh’s book of famous unsolved codes

German computer scientist and cryptology writer Klaus Schmeh recently published a German-language book about famous unsolved secret messages, including the Zodiac Killer cryptograms. (The cover depicts what we all probably want to do with Zodiac’s cryptograms.) Nicht Zu Knacken (which…

Kevin Knight’s upcoming Voynich lecture

I love that we live in an age where university lectures are frequently made free for all to benefit from. From Nick Pelling’s consistently intriguing site comes news that Kevin Knight, the famed USC researcher whose team cracked an old…