| 单词 | caesar cipher |
| 释义 | > as lemmasCaesar cipher Cryptography. Designating or relating to a type of cipher in which each letter of the original text is replaced by the letter that is a given number of places away in the alphabet. Usually attributive, esp. in Caesar cipher.So named because this type of cipher is thought to have been used for communication between Julius Caesar and his military leaders during the Gallic Wars (58–50 b.c.). ΚΠ 1950 Collier's 28 Oct. 46/3 In the Caesar Cipher each letter of the clear text was shifted four places farther along in the Latin alphabet. 1961 Webster's 3rd New Internat. Dict. Eng. Lang. Caesar substitution, also caesar shift, the replacement of each letter in a text by the one at a certain constant distance in the alphabet, esp. a normal alphabet. 1977 Sci. Amer. Aug. 120/2 We spin the arrow and it stops on K. This tells us to use for encoding T a Caesar cipher in which the lower alphabet is shifted 10 steps to the right, bringing A below K... T, therefore, is encoded as J. 1982 H. Beker & F. Piper Cipher Syst. 16 One of the earliest examples of a monoalphabetic cipher was the Caesar cipher used by Julius Caesar in the Gallic Wars. 1999 Florida Times-Union (Nexis) 14 Nov. e4 The Caesar cipher is based on a cipher alphabet that is shifted three spaces from the plain text ABCs. < as lemmas |
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