A Reddit user has posted a strange cryptogram engraved on a metal plate. Can a reader make sense of it?
The encrypted diary of prisoner of war Donald Hill is unique. Hill not only encrypted his entries but also disguised them as a collection of mathematical tables. In a self-experiment, I tried to encrypt and hide a text like he did.
My friend Stefan Beck, owner of a typewriter museum, has purchased a rare Hagelin encryption machine. Does a reader know, why it looks different from other devices of the same model?
A Polish publishing house has launched a new Voynich manuscript facsimile. Another Voynich replica – much smaller in size – is available as a doll house accessory.
This year’s HistoCrypt conference will involve a unique line-up of world-renowned speakers and panelists – including Bill Clinton, Giovanni Infantino, and Bill Cosby.
A blog reader has told me about strange email messages he receives occasionally. Does a reader know what they mean?
A blog reader has sent me a picture of a medal that bears unusual inscriptions on both sides. Can a reader make sense of these?
Crypto collector Glen Miranker has come across an interesting strip cipher device. He can’t find any information about it. Can a reader help?
A Reddit user recently purchased a cryptologic document from the Second World War. Can a reader make sense of it?
“The Professional”, a French movie with Jean-Paul Belmondo, involves an encrypted telegram. The plaintext and the ciphertext are known. Is the encryption real?
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