Caesar Cipher

Oliver Merkel, the oculus of the Pantheon's dome in Rome, Italy, cc-by-nc-nd 4.0.

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@author Oliver Merkel, Merkel(dot) Oliver(at) web(dot) de.
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Caesar Cipher Principles and Concepts

The basic concept of the Caesar Cipher is one of the encryption techniques that is said to have been used by Gaius Iulius Caesar (*July 100BC; †March 15th, 44BC) to protect message exchange among his military troops.

Caesar Cipher encryption is basically performed by monoalphabetic character substitution applying a positional shift in a given alphabet. Reversing the shift by same amount of positions with same alphabet decrypts the ciphered text into plain text again. Such that the secret key in this symmetric cipher is represented by the number respresenting the amount of positions to shift and the usage of the correct alphabet to be applied.

Third Party Code Licenses

This Caesar Cipher implementation uses unmodified independent code libraries provided by third parties. Since their licenses might vary the corresponding information is externally linked below. Thus these external links will enable you to reproduce any copyright notice, any related list of conditions, disclaimers, and especially the copyright holders and authors of the corresponding third party functionality.