Cipher Mysteries

"The Chaocipher" is a devious cipher system invented in 1918 by John F. Byrne: allegedly, it was so complex that nobody could crack his challenge ciphertexts (even with the plaintext to refer to!), yet was so simple that its mechanism was claimed to comprise only two rotating disks small enough to fit in a cigar box, and could be operated by a ten-year-old (admittedly a ...

With my book publisher hat on, I'd guess that the pitch for this book probably said: "Codes! Ciphers! Cryptograms! Masonic stuff! For Dummies!" And yes, the authors (Denise Sutherland and Mark E. Koltko-Rivera) pretty much seem to have delivered on that basic promise. But... is it any good? Bear with me while I sketch out a triangle in idea-space. On the first vertex, I'll ...

It's not widely known that the US National Security Agency has a small section at Fort Meade devoted to the history of code-breaking: The Center for Cryptologic History. As well as making scans of a number of useful documents available on its website (most notably Mary D'Imperio's "An Elegant Enigma"), the CCH convenes its own history of cryptology ...

A modern day Baron Frankenstein (actually, a mild-mannered Norwegian) has wired up the electrodes to a monstrous-looking zombie most thought long dead. It rises! It stands! It lives! It liiiiives!!!!! I'm referring, of course, to the whole idea of using wobbly cryptography to prove that Francis Bacon = William Shakespeare, that David Kahn somewhat derisively called "enigmatology". Note that I'm not saying the ...

In a comment to a recent post on Alberti & Averlino, 'infinitii' asks what my recommendations would be for a Voynich Manuscript reading list... a deceptively hard question. Apart from the direct literature on the subject (Mary D'Imperio's "An Elegant Enigma", my "The Curse of the Voynich", and perhaps even Kennedy & Churchill's "The Voynich Manuscript"), probably the best first ...

Day One of the Early Modern Research Techniques course was easy to write about, as was Day Two: but Day Three? Tricky... If I close my eyes, the single image from it burnt into my retinas is of Charles Hope sardonically half-warning participants about the historical Class A drug that is archival research. Yes, he personally had partaken of ...

I happened upon the following post a few days ago here, and thought I ought to reproduce it here for anyone that's interested (the cryptography history lane tends to be filled with caravans, and as a result is somewhat slow-moving). When the volume finally appears (in 2009?), I'll be just as interested in the paper on the Voynich Manuscript ...

For me, Voynich research is one of those things that grind slowly onwards for long periods of time, punctuated by occasional testosteronal fist-clenching-in-the-air moments of elation, a bit like a prisoner being unexpectedly set free. OK, I know it's a bit cliched: but I do it anyway. For "The Curse of the Voynich", I forensically examined the manuscript itself, travelled ...

It's been a rollercoaster of a day for me at the Warburg Institute on the Early Modern Research Techniques course, like being given the keys to the world twice but having them taken away three times. I'll try to explain... Paul Taylor kicked Day Two's morning off in fine style, picking up the baton from Francois Quiviger's drily laconic ...

Every few days, I get asked to recommend a good introduction to the Voynich Manuscript (the 'VMs' for short). But each time this happens, my heart sinks a little: given the size and scope of historical research you'd need to have to properly grasp the subject, it's a bit like being asked to recommend a good 5-page encyclopaedia. Or rather, ...