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There is a secret code at the bottom of the book, containing a message from Foaly. [1] This is translatable if one has the Gnommish alphabet, available in The Artemis Fowl Files by Eoin Colfer, or the Artemis Fowl website. The message on the cover of the US publication, barely decipherable, reads "Opal wants revenge", it is faintly repeated several times on the sides of the tube. The Gnommish ...
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-secret messages. [1] The Enigma has an ...
The pigpen cipher uses graphical symbols assigned according to a key similar to the above diagram. [1] 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 ...
A series of three rotors from an Enigma machine scrambler. When loaded in the machine, these rotors connect with the entry plate on the right and the reflector drum on the left. The Enigma rotor machine was potentially an excellent system. It generated a polyalphabetic substitution cipher, with a period before repetition of the substitution alphabet that was much longer than any message, or ...
In cryptography, a Caesar cipher, also known as Caesar's cipher, the shift cipher, Caesar's code, or Caesar shift, is one of the simplest and most widely known encryption techniques. It is a type of substitution cipher in which each letter in the plaintext is replaced by a letter some fixed number of positions down the alphabet.
The Voynich manuscript is an illustrated codex, hand-written in an unknown script referred to as Voynichese. [ 18 ] The vellum on which it is written has been carbon-dated to the early 15th century (1404–1438). Stylistic analysis has indicated the manuscript may have been composed in Italy during the Italian Renaissance. [ 1 ][ 2 ] While the origins, authorship, and purpose of the manuscript ...
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A code talker was a person employed by the military during wartime to use a little-known language as a means of secret communication. The term is most often used for United States service members during the World Wars who used their knowledge of Native American languages as a basis to transmit coded messages.