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The Atbash cipher is a particular type of monoalphabetic cipher formed by taking the alphabet (or abjad, syllabary, etc.) and mapping it to its reverse, so that the first letter becomes the last letter, the second letter becomes the second to last letter, and so on.
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 cipher, or a letter-to-number simple substitution cipher. The season 1 finale encodes a message with ...
600-500 – Hebrew scholars make use of simple monoalphabetic substitution ciphers (such as the Atbash cipher) c. 400 – Spartan use of scytale (alleged) c. 400 – Herodotus reports use of steganography in reports to Greece from Persia (tattoo on shaved head) 100-1 A.D.- Notable Roman ciphers such as the Caesar cipher.
All of the electromechanical machines used in World War II were of this logical class, as were the Caesar and Atbash ciphers and essentially all cipher systems throughout history. The 'key' for a code is, of course, the codebook, which must likewise be distributed and kept secret, and so shares most of the same problems in practice.
Pages in category "Classical ciphers" The following 53 pages are in this category, out of 53 total. ... Atbash; Autokey cipher; B. Bacon's cipher; Beaufort cipher;
Atbash is an example of an early Hebrew cipher. The earliest known use of cryptography is some carved ciphertext on stone in Egypt ( c. 1900 BCE ), but this may have been done for the amusement of literate observers rather than as a way of concealing information.
Khufu and Khafre – 64-bit block ciphers Kuznyechik – Russian 128-bit block cipher, defined in GOST R 34.12-2015 and RFC 7801. LION – block cypher built from stream cypher and hash function, by Ross Anderson
Atbash: Replacing the first letter with the last letter of the Hebrew alphabet, the second with the next-to-last, and so on. א=ת, ב=ש, ג=ר, etc. Avgad : Replacing each letter with the subsequent letter.