• Thumbnail for Vigenère cipher
    The Vigenère cipher (French pronunciation: [viʒnɛːʁ]) is a method of encrypting alphabetic text where each letter of the plaintext is encoded with a different...
    45 KB (6,033 words) - 18:34, 2 May 2025
  • Thumbnail for Blaise de Vigenère
    Vigenère (5 April 1523 – 19 February 1596) (French pronunciation: [viʒnɛːʁ]) was a French diplomat, cryptographer, translator and alchemist. Vigenère...
    14 KB (1,654 words) - 17:07, 21 April 2025
  • The Beaufort cipher, created by Sir Francis Beaufort, is a substitution cipher similar to the Vigenère cipher, with a slightly modified enciphering mechanism...
    7 KB (839 words) - 03:18, 12 February 2025
  • Thumbnail for Caesar cipher
    encryption step performed by a Caesar cipher is often incorporated as part of more complex schemes, such as the Vigenère cipher, and still has modern application...
    19 KB (2,068 words) - 02:43, 14 May 2025
  • Thumbnail for Tabula recta
    ciphers, including the Vigenère cipher and Blaise de Vigenère's less well-known autokey cipher. All polyalphabetic ciphers based on the Caesar cipher...
    7 KB (939 words) - 23:25, 2 February 2024
  • polyalphabetic cipher is a substitution, using multiple substitution alphabets. The Vigenère cipher is probably the best-known example of a polyalphabetic cipher, though...
    6 KB (735 words) - 18:15, 28 December 2024
  • Vigenère except that only 10 alphabets are used, and so the "keyword" is numerical. The Beaufort cipher. This is practically the same as the Vigenère...
    30 KB (4,028 words) - 20:45, 11 May 2025
  • Vigenère may refer to: Blaise de Vigenère, a 16th-century French cryptographer The Vigenère cipher, a cipher whose invention was later misattributed to...
    194 bytes (55 words) - 19:02, 30 December 2019
  • Thumbnail for Giovan Battista Bellaso
    The Vigenère cipher is named after Blaise de Vigenère, although Giovan Battista Bellaso had invented it before Vigenère described his autokey cipher. Bellaso...
    13 KB (1,623 words) - 18:19, 23 October 2024
  • Thumbnail for Autokey cipher
    in the keystream. This cipher was invented in 1586 by Blaise de Vigenère with a reciprocal table of ten alphabets. Vigenère's version used an agreed-upon...
    9 KB (1,278 words) - 03:31, 26 March 2025
  • Thumbnail for Playfair cipher
    as in the simple substitution cipher and rather more complex Vigenère cipher systems then in use. The Playfair cipher is thus significantly harder to...
    20 KB (2,541 words) - 19:04, 1 April 2025
  • method) is a method of attacking polyalphabetic substitution ciphers, such as the Vigenère cipher. It was first published by Friedrich Kasiski in 1863, but...
    8 KB (1,129 words) - 08:17, 21 February 2025
  • figure out both cipher alphabets. Another example of a polyalphabetic substitution cipher that is much more difficult to decode is the Vigenère square, an...
    15 KB (2,528 words) - 18:09, 11 December 2024
  • Thumbnail for Alberti cipher
    to do with Affine Shifts, Keyword shifts, Caesar shift or Vigenère ciphers. Caesar’s cipher is a simple substitution based on the sliding of a single...
    10 KB (1,493 words) - 10:54, 18 May 2025
  • with the Caesar cipher, the Affine cipher, the Keyword cipher, the Transposition cipher, the Vigenère cipher and the 2x2 Hill cipher. The part B challenges...
    4 KB (507 words) - 09:22, 5 July 2023
  • Thumbnail for Cryptography
    automatic cipher device, a wheel that implemented a partial realization of his invention. In the Vigenère cipher, a polyalphabetic cipher, encryption...
    99 KB (10,975 words) - 11:30, 14 May 2025
  • Thumbnail for Music cipher
    very straightforward 'Porta-style' music cipher (1670). Similar to a Vigenère cipher, a single-letter cipher key shifts the position of the plaintext...
    27 KB (3,733 words) - 10:55, 6 March 2025
  • Thumbnail for Ciphertext
    Ciphertext (redirect from Cipher text)
    Caesar cipher and one-time pad) Polyalphabetic substitution cipher: a substitution cipher using multiple substitution alphabets (e.g., Vigenère cipher and...
    9 KB (1,139 words) - 21:45, 22 March 2025
  • xor(secret_message_bytes, secret_key) |> rawToChar() Block cipher Vernam cipher Vigenère cipher There are 3 ways of getting a (ciphertext) output bit of...
    9 KB (1,036 words) - 12:37, 10 February 2025
  • Thumbnail for Cryptanalysis
    substitution cipher was developed, among others by the French diplomat Blaise de Vigenère (1523–96). For some three centuries, the Vigenère cipher, which uses...
    45 KB (5,235 words) - 09:20, 15 May 2025
  • Thumbnail for Voynich manuscript
    Voynich manuscript (category Undeciphered historical codes and ciphers)
    Alberti in the 1460s and included the later Vigenère cipher, but they usually yield ciphertexts where all cipher shapes occur with roughly equal probability...
    143 KB (14,092 words) - 09:19, 11 May 2025
  • that would become known in the 19th century as the Vigenère cipher, misattributed to Blaise de Vigenère. In Europe, cryptography became (secretly) more important...
    53 KB (6,893 words) - 19:25, 5 May 2025
  • Consider an attack on the ciphertext string "WNAIW" encrypted using a Vigenère cipher with a five letter key. Conceivably, this string could be deciphered...
    7 KB (980 words) - 20:30, 21 April 2024
  • polyalphabetic ciphers he devised during that period and used to write letters to his friends. It describes what is known as a Vigenère cipher, a well-known...
    5 KB (734 words) - 16:41, 5 May 2025
  • some overlap in these definitions; one could conceivably consider a Vigenère cipher with an eight-letter key to be an octographic substitution. In practice...
    4 KB (580 words) - 23:49, 19 March 2025
  • Thumbnail for Zipf's law
    may be mapped to two or more different words (as happens with the Vigenère cipher), the Zipf distribution will typically have a flat part at the high-frequency...
    47 KB (4,655 words) - 10:32, 10 May 2025
  • Thumbnail for Bacon's cipher
    Bacon's cipher or the Baconian cipher is a method of steganographic message encoding devised by Francis Bacon in 1605. In steganography, a message is...
    8 KB (775 words) - 20:19, 31 March 2025
  • plaintext: The message is then sent as "JCVSR LQNPS". However, unlike a Vigenère cipher, if the message is extended, the key is not repeated; the key text...
    10 KB (1,298 words) - 08:50, 11 November 2024
  • Thumbnail for Charles Babbage
    War of the 1850s, Babbage broke Vigenère's autokey cipher as well as the much weaker cipher that is called Vigenère cipher today. His discovery was kept...
    113 KB (12,386 words) - 18:48, 6 May 2025
  • Thumbnail for Cipher
    his book Cyclopædia (1778). Simple ciphers were replaced by polyalphabetic substitution ciphers (such as the Vigenère) which changed the substitution alphabet...
    18 KB (2,154 words) - 14:11, 15 May 2025