Editing Substitution cipher (section)

== In popular culture ==
*[[Sherlock Holmes]] breaks a substitution cipher in "[[The Adventure of the Dancing Men]]". There, the cipher remained undeciphered for years if not decades; not due to its difficulty, but because [[steganography|no one suspected it to be a code]], instead considering it childish scribblings.
* The  [[Standard Galactic Alphabet]], the writing system in the ''Commander Keen'' video games and in ''[[Minecraft]]''.
*The [[Al Bhed]] language in ''[[Final Fantasy X]]'' is actually a substitution cipher, although it is pronounced phonetically (i.e. "you" in English is translated to "oui" in Al Bhed, but is pronounced the same way that "oui" is pronounced in [[French Language|French]]).
*The [[Minbari]]'s alphabet from the ''[[Babylon 5]]'' series is a substitution cipher from English.
*The language in ''[[Starfox Adventures]]: Dinosaur Planet'' spoken by native Saurians and [[List of characters in the Star Fox series#Krystal|Krystal]] is also a substitution cipher of the [[English alphabet]].
*The television program ''[[Futurama]]'' contained a substitution cipher in which all 26 letters were replaced by symbols and called [http://www.gotfuturama.com/Interactive/AlienCodec/ "Alien Language"] {{Webarchive|url=https://web.archive.org/web/20221225115942/https://www.gotfuturama.com/Interactive/AlienCodec/ |date=2022-12-25 }}. This was deciphered rather quickly by the die hard viewers by showing a "Slurm" ad with the word "Drink" in both plain English and the Alien language thus giving the key. Later, the producers created a second alien language that used a combination of replacement and mathematical Ciphers. Once the English letter of the alien language is deciphered, then the numerical value of that letter (0 for "A" through 25 for "Z" respectively) is then added (modulo 26) to the value of the previous letter showing the actual intended letter. These messages can be seen throughout every episode of the series and the subsequent movies.
*At the end of every season 1 episode of the cartoon series ''[[Gravity Falls]]'', during the credit roll, there is one of three simple substitution ciphers: A -3 [[Caesar cipher]] (hinted by "3 letters back" at the end of the opening sequence), an [[Atbash|Atbash cipher]], or a letter-to-number simple substitution cipher. The season 1 finale encodes a message with all three. In the second season, [[Vigenère cipher]]s are used in place of the various monoalphabetic ciphers, each using a key hidden within its episode.
*In the [[Artemis Fowl series]] by [[Eoin Colfer]] there are three substitution ciphers; Gnommish, Centaurean and Eternean, which run along the bottom of the pages or are somewhere else within the books.
*In ''Bitterblue'', the third novel by [[Kristin Cashore]], substitution ciphers serve as an important form of coded communication.
*In the 2013 video game ''[[BioShock Infinite]]'', there are substitution ciphers hidden throughout the game in which the player must find code books to help decipher them and gain access to a surplus of supplies.
*In the anime adaptation of ''[[The Devil Is a Part-Timer!]]'', the language of Ente Isla, called Entean, uses a substitution cipher with the ciphertext alphabet {{mono|AZYXEWVTISRLPNOMQKJHUGFDCB}}, leaving only A, E, I, O, U, L, N, and Q in their original positions.