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- Jefferson_disk abstract "The Jefferson disk, or wheel cypher as Thomas Jefferson named it, also known as the Bazeries Cylinder, is a cipher system using a set of wheels or disks, each with the 26 letters of the alphabet arranged around their edge. The order of the letters is different for each disk and is usually scrambled in some random way. Each disk is marked with a unique number. A hole in the centre of the disks allows them to be stacked on an axle. The disks are removable and can be mounted on the axle in any order desired. The order of the disks is the cipher key, and both sender and receiver must arrange the disks in the same predefined order. Jefferson's device had 36 disks. [Kahn, p. 194]Once the disks have been placed on the axle in the agreed order, the sender rotates each disk up and down until a desired message is spelled out in one row. Then the sender can copy down any row of text on the disks other than the one that contains the plaintext message. The recipient simply has to arrange the disks in the agreed-upon order, rotate the disks so they spell out the encrypted message on one row, and then look around the rows until he sees the plaintext message, i.e. the row that's not complete gibberish. There is an extremely small chance that there would be two readable messages, but that can be checked quickly by the person coding.First invented by Thomas Jefferson in 1795, this cipher did not become well known and was independently invented by Commandant Etienne Bazeries, the conqueror of the Great Cipher, a century later. The system was used by the United States Army from 1923 until 1942 as the M-94.This system is not considered secure against modern codebreaking if it is used to encrypt more than one row of text with the same ordering of disks (i.e. using the same key). See #Cryptanalysis.".
- Jefferson_disk thumbnail Jeffersons_disk_cipher.jpgwidth=300.
- Jefferson_disk wikiPageExternalLink wheel-cipher.
- Jefferson_disk wikiPageID "854993".
- Jefferson_disk wikiPageLength "13802".
- Jefferson_disk wikiPageOutDegree "37".
- Jefferson_disk wikiPageRevisionID "669643137".
- Jefferson_disk wikiPageWikiLink Alice_and_Bob.
- Jefferson_disk wikiPageWikiLink Army.
- Jefferson_disk wikiPageWikiLink Axle.
- Jefferson_disk wikiPageWikiLink Brute-force_attack.
- Jefferson_disk wikiPageWikiLink Brute_force_attack.
- Jefferson_disk wikiPageWikiLink Category:American_inventions.
- Jefferson_disk wikiPageWikiLink Category:Encryption_devices.
- Jefferson_disk wikiPageWikiLink Category:Thomas_Jefferson.
- Jefferson_disk wikiPageWikiLink Cipher.
- Jefferson_disk wikiPageWikiLink Ciphertext.
- Jefferson_disk wikiPageWikiLink Coast_Guard.
- Jefferson_disk wikiPageWikiLink Coast_guard.
- Jefferson_disk wikiPageWikiLink Codebreaking.
- Jefferson_disk wikiPageWikiLink Computer.
- Jefferson_disk wikiPageWikiLink Crib_(cryptanalysis).
- Jefferson_disk wikiPageWikiLink Cryptanalysis.
- Jefferson_disk wikiPageWikiLink Cryptanalyst.
- Jefferson_disk wikiPageWikiLink David_Kahn_(writer).
- Jefferson_disk wikiPageWikiLink Etienne_Bazeries.
- Jefferson_disk wikiPageWikiLink Federal_Communications_Commission.
- Jefferson_disk wikiPageWikiLink Great_Cipher.
- Jefferson_disk wikiPageWikiLink Joseph_Mauborgne.
- Jefferson_disk wikiPageWikiLink Key_(cryptography).
- Jefferson_disk wikiPageWikiLink Known-plaintext_attack.
- Jefferson_disk wikiPageWikiLink M-138-A.
- Jefferson_disk wikiPageWikiLink M-94.
- Jefferson_disk wikiPageWikiLink Multiple_anagramming.
- Jefferson_disk wikiPageWikiLink Parker_Hitt.
- Jefferson_disk wikiPageWikiLink Plaintext.
- Jefferson_disk wikiPageWikiLink Sherlock_Holmes.
- Jefferson_disk wikiPageWikiLink State_Department.
- Jefferson_disk wikiPageWikiLink Telegraph.
- Jefferson_disk wikiPageWikiLink Telegraphy.
- Jefferson_disk wikiPageWikiLink Thomas_Jefferson.
- Jefferson_disk wikiPageWikiLink US_Navy.
- Jefferson_disk wikiPageWikiLink US_State_Department.
- Jefferson_disk wikiPageWikiLink United_States.
- Jefferson_disk wikiPageWikiLink United_States_Department_of_State.
- Jefferson_disk wikiPageWikiLink United_States_Navy.
- Jefferson_disk wikiPageWikiLink World_War_II.
- Jefferson_disk wikiPageWikiLink Étienne_Bazeries.
- Jefferson_disk wikiPageWikiLink File:Jeffersons_disk_cipher.jpg.
- Jefferson_disk wikiPageWikiLinkText "Bazeries Cylinder".
- Jefferson_disk wikiPageWikiLinkText "Jefferson disk".
- Jefferson_disk wikiPageWikiLinkText "Wheel cypher".
- Jefferson_disk wikiPageWikiLinkText "cipher wheel".
- Jefferson_disk wikiPageWikiLinkText "multi cylinder".
- Jefferson_disk hasPhotoCollection Jefferson_disk.
- Jefferson_disk wikiPageUsesTemplate Template:Citation_needed.
- Jefferson_disk wikiPageUsesTemplate Template:Cryptography_navbox.
- Jefferson_disk wikiPageUsesTemplate Template:DerivedGoebelCrypto.
- Jefferson_disk wikiPageUsesTemplate Template:Reflist.
- Jefferson_disk wikiPageUsesTemplate Template:Thomas_Jefferson.
- Jefferson_disk subject Category:American_inventions.
- Jefferson_disk subject Category:Encryption_devices.
- Jefferson_disk subject Category:Thomas_Jefferson.
- Jefferson_disk hypernym System.
- Jefferson_disk type Article.
- Jefferson_disk type Politician.
- Jefferson_disk type President.
- Jefferson_disk type Article.
- Jefferson_disk type Politician.
- Jefferson_disk type President.
- Jefferson_disk comment "The Jefferson disk, or wheel cypher as Thomas Jefferson named it, also known as the Bazeries Cylinder, is a cipher system using a set of wheels or disks, each with the 26 letters of the alphabet arranged around their edge. The order of the letters is different for each disk and is usually scrambled in some random way. Each disk is marked with a unique number. A hole in the centre of the disks allows them to be stacked on an axle.".
- Jefferson_disk label "Jefferson disk".
- Jefferson_disk sameAs Jefferson-Walze.
- Jefferson_disk sameAs Cylindre_de_Jefferson.
- Jefferson_disk sameAs Rullo_di_Jefferson.
- Jefferson_disk sameAs 제퍼슨_디스크.
- Jefferson_disk sameAs Dysk_Jeffersona.
- Jefferson_disk sameAs m.03hk6q.
- Jefferson_disk sameAs Цилиндр_Джефферсона.
- Jefferson_disk sameAs Q1063471.
- Jefferson_disk sameAs Q1063471.
- Jefferson_disk wasDerivedFrom Jefferson_disk?oldid=669643137.
- Jefferson_disk depiction Jeffersons_disk_cipher.jpg.
- Jefferson_disk isPrimaryTopicOf Jefferson_disk.