Caesar Cipher

$\kappa\rho\vartheta\pi\tau\delta\zeta$ = kryptos (greek): hidden

$\gamma\rho\alpha\varphi\epsilon\iota\nu$ = graphein (greek): to write

Cryptography in the classic sense of the word therefore refers to methods of writing messages in such a way that they remain “hidden”, i.e. cannot be read by unauthorised persons. The “security objective” referred to here is called “confidentiality” or “secrecy” or “concelation” (concelare (latin): to conceal carefully, in English: conceal). Procedures that achieve this goal are called concelation systems.

In modern times Cryptography became more a method of protecting information and communications.

The Caesar cipher is one of the earliest known and simplest ciphers…

How it Works

The cipher works by shifting the letters of the alphabet by a fixed number…