The Scytale is a cipher that is based on a transposition method. The diameter of the Scytale can be regarded as the key of the cipher. In Ancient Greece, the belt of the messenger was composed of a stretch of leather which had characters written on the backside. It seemed like a meaningless sequence of characters but when the stretch of leather is winded around a piece of wood with the correct diameter, an encoded message can be read. This cipher is functionally similar to the Caesar Box Cipher.