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- Keyword_cipher abstract "A keyword cipher is a form of monoalphabetic substitution. A keyword is used as the key, and it determines the letter matchings of the cipher alphabet to the plain alphabet. Repeats of letters in the word are removed, then the cipher alphabet is generated with the keyword matching to A,B,C etc. Until the keyword is used up, whereupon the rest of the ciphertext letters are used in alphabetical order, excluding those already used in the key Worked Example.Plaintext: A B C D E F G H I J K L M N O P Q R S T U V W X Y ZEncrypted: K R Y P T O S A B C D E F G H I J L M N Q U V W X ZWith KRYPTOS as the keyword, all As become Ks, all Bs become Rs and so on. Encrypting the message \"knowledge is power\" using the keyword \"kryptos\":Plaintext: K N O W L E D G E I S P O W E REncoded: D G H V E T P S T B M I H V T LOnly one alphabet is used here, so the cipher is monoalphabetic.The best ways to attack a keyword cipher without knowing the keyword are through known-plaintext attack, frequency analysis and discovery of the keyword (often a cryptanalyst will combine all three techniques). Keyword discovery allows immediate decryption since the table can be made immediately.".
- Keyword_cipher wikiPageExternalLink keyword?word=knowledgeispower%2Ckryptos.
- Keyword_cipher wikiPageID "6003590".
- Keyword_cipher wikiPageLength "1463".
- Keyword_cipher wikiPageOutDegree "6".
- Keyword_cipher wikiPageRevisionID "679891100".
- Keyword_cipher wikiPageWikiLink Category:Classical_ciphers.
- Keyword_cipher wikiPageWikiLink Frequency_analysis.
- Keyword_cipher wikiPageWikiLink Keyword_cipher.
- Keyword_cipher wikiPageWikiLink Known-plaintext_attack.
- Keyword_cipher wikiPageWikiLink Substitution_cipher.
- Keyword_cipher wikiPageWikiLinkText "Keyword cipher".
- Keyword_cipher wikiPageWikiLinkText "keyword".
- Keyword_cipher wikiPageUsesTemplate Template:Cryptography_navbox.
- Keyword_cipher wikiPageUsesTemplate Template:Unreferenced.
- Keyword_cipher subject Category:Classical_ciphers.
- Keyword_cipher hypernym Form.
- Keyword_cipher comment "A keyword cipher is a form of monoalphabetic substitution. A keyword is used as the key, and it determines the letter matchings of the cipher alphabet to the plain alphabet. Repeats of letters in the word are removed, then the cipher alphabet is generated with the keyword matching to A,B,C etc.".
- Keyword_cipher label "Keyword cipher".
- Keyword_cipher sameAs Q6398554.
- Keyword_cipher sameAs m.0fk4l6.
- Keyword_cipher sameAs Q6398554.
- Keyword_cipher wasDerivedFrom Keyword_cipher?oldid=679891100.
- Keyword_cipher isPrimaryTopicOf Keyword_cipher.