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2. Copiale cipher - Wikipedia

   en.wikipedia.org/wiki/Copiale_cipher

   The Copiale cipher is a substitution cipher. It is not a 1-for-1 substitution but rather a homophonic cipher: each ciphertext character stands for a particular plaintext character, but several ciphertext characters may encode the same plaintext character. For example, all the unaccented Roman characters encode a space.

3. GOST (block cipher) - Wikipedia

   en.wikipedia.org/wiki/GOST_(block_cipher)

   The GOST block cipher (Magma), defined in the standard GOST 28147-89 (RFC 5830), is a Soviet and Russian government standard symmetric key block cipher with a block size of 64 bits. The original standard, published in 1989, did not give the cipher any name, but the most recent revision of the standard, GOST R 34.12-2015 (RFC 7801, RFC 8891 ...

4. Kuznyechik - Wikipedia

   en.wikipedia.org/wiki/Kuznyechik

   The name of the cipher can be translated from Russian as grasshopper, however, the standard explicitly says that the English name for the cipher is Kuznyechik (/ k ʊ z n ˈ ɛ tʃ ɪ k /). The designers claim that by naming the cipher Kuznyechik they follow the trend of difficult to pronounce algorithm names set up by Rijndael and Keccak. [5]

5. Aristocrat Cipher - Wikipedia

   en.wikipedia.org/wiki/Aristocrat_Cipher

   The Aristocrat Cipher is a type of monoalphabetic substitution cipher in which plaintext is replaced with ciphertext and encoded into assorted letters, numbers, and symbols based on a keyword. The formatting of these ciphers generally includes a title, letter frequency, keyword indicators, and the encoder's nom de plume . [ 1 ]

6. Mojibake - Wikipedia

   en.wikipedia.org/wiki/Mojibake

   Mojibake in English texts generally occurs in punctuation, such as em dashes (—), en dashes (–), and curly quotes (“, ”, ‘, ’), but rarely in character text, since most encodings agree with ASCII on the encoding of the English alphabet.

7. Cryptogram - Wikipedia

   en.wikipedia.org/wiki/Cryptogram

   Celebrity Cipher, distributed by Andrew McMeel, is another cipher game in contemporary culture, challenging the player to decrypt quotes from famous personalities. [6] A cryptoquip is a specific type of cryptogram that usually comes with a clue or a pun. The solution often involves a humorous or witty phrase. [7]

8. Nyctography - Wikipedia

   en.wikipedia.org/wiki/Nyctography

   Nyctography (in Nyctography:) is a form of substitution cipher writing created by Lewis Carroll (Charles Lutwidge Dodgson) in 1891. It is written with a nyctograph (a device invented by Carroll) and uses a system of dots and strokes all based on a dot placed in the upper left corner. Using the Nyctograph, one could quickly jot down ideas or ...

9. Four-square cipher - Wikipedia

   en.wikipedia.org/wiki/Four-square_cipher

   The four-square cipher is a manual symmetric encryption technique. [1] It was invented by the French cryptographer Felix Delastelle . The technique encrypts pairs of letters ( digraphs ), and falls into a category of ciphers known as polygraphic substitution ciphers .