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The pigpen cipher (alternatively referred to as the masonic cipher, Freemason's cipher, Rosicrucian cipher, Napoleon cipher, and tic-tac-toe cipher) [2] [3] is a geometric simple substitution cipher, which exchanges letters for symbols which are fragments of a grid. The example key shows one way the letters can be assigned to the grid.
Book cipher. The King James Bible, a highly available publication suitable for the book cipher. A book cipher is a cipher in which each word or letter in the plaintext of a message is replaced by some code that locates it in another text, the key . A simple version of such a cipher would use a specific book as the key, and would replace each ...
The Enigma machine is a cipher device developed and used in the early- to mid-20th century to protect commercial, diplomatic, and military communication. It was employed extensively by Nazi Germany during World War II, in all branches of the German military. The Enigma machine was considered so secure that it was used to encipher the most top ...
The book's intricate design also conceals a series of hidden symbols that spell out a secret message when their code is deciphered, if the reader is clever enough to find them. Contents. Chapter I: The Work of a Wizard; Chapter II: A Wizard's Map of the World; Chapter III: The Master Wizard's Workshop; Chapter IV: A Wizard's Robes & Tools
Caesar cipher. The action of a Caesar cipher is to replace each plaintext letter with a different one a fixed number of places down the alphabet. The cipher illustrated here uses a left shift of 3, so that (for example) each occurrence of E in the plaintext becomes B in the ciphertext. In cryptography, a Caesar cipher, also known as Caesar's ...
t. e. The Enigma machine was used commercially from the early 1920s and was adopted by the militaries and governments of various countries—most famously, Nazi Germany. Cryptanalysis of the Enigma ciphering system enabled the western Allies in World War II to read substantial amounts of Morse-coded radio communications of the Axis powers that ...
In medieval France, the language of the birds ( la langue des oiseaux) was a secret language of the Troubadours, connected with the Tarot, allegedly based on puns and symbolism drawn from homophony, e. g. an inn called au lion d'or ("the Golden Lion") is allegedly "code" for au lit on dort "in the bed one sleeps". [11]
Alien language. Alien languages, i.e. languages of extraterrestrial beings, are a hypothetical subject since none have been encountered so far. [1] The research in these hypothetical languages is variously called exolinguistics, xenolinguistics [2] or astrolinguistics. [3] [4] A group of prominent linguists and animal communication scientists ...