The Journal of Craptology, “a seminal journal in its field” (Moti Yung), has two major problems. First, there has been no new edition since 2014; second, somebody has encrypted the Call for Papers. Can a reader help?
Nathaniel Bar-Jonah (1957-2008) was a felon convicted of kidnapping and sexual assault. According to a book, he left behind an encrypted note that has never been solved.
In the 1930s, a US newspaper introduced an interesting way of making their advertisements more attractive. They published two Playfair cryptograms, the keys of which were hidden in an ad on the same page.
US codebreaker Jim Gillogly broke over 1,000 transposition cryptograms created by IRA activists in the 1920s. Only one of these messages remained unsolved. Can a reader break it?
In 1905 a certain Miss Rhodes from Colchester, UK, received an encrypted postcard signed with “C.Y.K.”. Can you decipher it?
Here’s another encrypted text from an advertisement. It comes from Canada.
A Reddit user has posted a postcard from Sweden written in 1910. Can a reader decipher it?
According to a Reddit post, a needlework made in the 1980s contains a hidden message. The details are not known any more. Can you find this message?
From 1884-1887 a series of 25 encrypted newspaper advertisements was published in the “Daily Telegraph”. The key is known. Can you help me to decrypt these messages?
Four years ago I blogged about an encrypted (?) text a blog reader had found in an old school book. It is still unsolved. Meanwhile I have better scans and some additional information.
Letzte Kommentare