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Caesar cipher

Simple and widely known encryption technique

EntityQ180943

Also known as Caesar's cipher · shift cipher · Caesar's code · Caesar shift

Subclass of: substitution cipher

Overview

From Wikipedia, the free encyclopedia · Read full article · Text CC BY-SA 4.0

A Caesar cipher is one of the simplest and most widely known encryption techniques used in cryptography. It is a type of substitution cipher in which each letter in the plaintext is replaced by a letter some fixed number of positions along the alphabet. For example, with a left shift of 3, D would be replaced by A, E would become B, and so on. The method is named after Julius Caesar, who used it in his private correspondence.

Overview

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16 statements · 19% with external sources · numbers in brackets are citations

Named after: Julius Caesar

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14 identifiers linking Caesar cipher across the web's reference databases

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statements

19%

externally sourced

Source last edited September 28, 2026. AIDB refreshes this page daily.

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AIDB. (2026). Caesar cipher (Q180943). Retrieved from https://aidb.si/e/caesar-cipher-Q180943