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  2. Book cipher - Wikipedia

    en.wikipedia.org/wiki/Book_cipher

    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 ...

  3. Voynich manuscript - Wikipedia

    en.wikipedia.org/wiki/Voynich_manuscript

    MS 408. Evidence of retouching of text on page 3; f1r. Retouching of drawing on page 131; f72v3. 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).

  4. Codebook - Wikipedia

    en.wikipedia.org/wiki/Codebook

    The JN-25 code used in World War II used a codebook of 30,000 code groups superencrypted with 30,000 random additives. The book used in a book cipher or the book used in a running key cipher can be any book shared by sender and receiver and is different from a cryptographic codebook.

  5. Substitution cipher - Wikipedia

    en.wikipedia.org/wiki/Substitution_cipher

    t. e. In cryptography, a substitution cipher is a method of encrypting in which units of plaintext are replaced with the ciphertext, in a defined manner, with the help of a key; the "units" may be single letters (the most common), pairs of letters, triplets of letters, mixtures of the above, and so forth. The receiver deciphers the text by ...

  6. List of ciphertexts - Wikipedia

    en.wikipedia.org/wiki/List_of_ciphertexts

    Copiale cipher: Solved in 2011 1843 "The Gold-Bug" cryptogram by Edgar Allan Poe: Solved (solution given within the short story) 1882 Debosnys cipher: Unsolved 1885 Beale ciphers: Partially solved (1 out of the 3 ciphertexts solved between 1845–1885) 1897 Dorabella Cipher: Unsolved 1903 "The Adventure of the Dancing Men" code by Arthur Conan ...

  7. List of group-0 ISBN publisher codes - Wikipedia

    en.wikipedia.org/wiki/List_of_group-0_ISBN...

    Wizards of the Coast. formerly TSR, Inc. (aka TSR Hobbies, aka Tactical Studies Rules) also assigned other ISBN 0- and 1- publisher codes. 935697. Midwest Villages & Voices Publications. Minneapolis, Minnesota, US. 935971. Amber Book Company. 936071.

  8. Category:Classical ciphers - Wikipedia

    en.wikipedia.org/wiki/Category:Classical_ciphers

    Download QR code; Wikidata item; Print/export Download as PDF; ... Bacon's cipher; Beaufort cipher; Bifid cipher; Book cipher; Thomas Brierley grave cipher; C. Caesar ...

  9. Cipher - Wikipedia

    en.wikipedia.org/wiki/Cipher

    In cryptography, a cipher (or cypher) is an algorithm for performing encryption or decryption —a series of well-defined steps that can be followed as a procedure. An alternative, less common term is encipherment. To encipher or encode is to convert information into cipher or code. In common parlance, "cipher" is synonymous with "code", as ...