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  Caesar Cipher / ROT13


Change this to the Rotation or Shift value desired.


In cryptography, a Caesar cipher, also known as Caesar's cipher, the shift cipher, Caesar's code, ROT or Caesar shift, is one of the simplest and most widely known encryption techniques. It is a type of substitution cipher in which each letter in the plaintext is replaced by a letter some fixed number of positions down the alphabet. For example, with a  shift of 3, D would be replaced by G, E would become H, and so on. This is refered to as a shift or rotation(ROT) cipher for that reason.

The method is named after Julius Caesar, who used it in his private correspondence.

ROT13 is a very popular form of a Caesar Cipher that uses a rotation value of 13.

Uryyb, Jbeyq!