Security of the Nihilist cipher
The Nihilist cipher is quite similar to the Vigenère cipher. It uses numbers instead of letters.
Does Caesar Cipher include numbers?
Numbers expands the alphabet and are included to the rotations. Other symbols except letters and numbers are not transformed. The classic Caesar cipher applies transformation only to letters. Transformation, known as ROTN, where ROT is from "ROTATE" and N is the value of cyclical shift, defines letter substitution.
What cipher uses 3 numbers?
Triliteral cipher encryption uses a triliteral alphabet ( triliteral = 3 letters, or aloso called trifid or ternary = 3 items). Each letter is then replaced by a corresponding triple of 3 letters.
