Tool to decrypt/encrypt using a scytale. Scytale is a very simple transposition cipher used in ancient Greece and by spartans. A band is wrapped around a rod, a message is written, and when the band is unrolled a ciphertext appears.

Scytale Cipher - dCode

Tag(s) : Cryptography, Transposition Cipher

dCode is free and its tools are a valuable help in games, puzzles and problems to solve every day!

You have a problem, an idea for a project, a specific need and dCode can not (yet) help you? You need custom development? *Contact-me*!

This page is using the new English version of dCode, *please make comments* !

Sponsored ads

Tool to decrypt/encrypt using a scytale. Scytale is a very simple transposition cipher used in ancient Greece and by spartans. A band is wrapped around a rod, a message is written, and when the band is unrolled a ciphertext appears.

Scytale Encryption uses a cylinder and a band characterized by its number of turns L of the band around the cylinder.

Example: Code DCODE with a band L=3.

The message is written along the cylinder, one letter per band, and when the end is reached, go to a new line.

If needed, the last line can be completed with another character, e.g. X or _.

Example:

DCO |

DE_ |

The ciphered message is the band unrolled, (i.e the message read by column).

Example: The cipher text is DDCEO_

Scytale Decryption requires to know the number N of letters by turn of the band (the size of the cylinder), or L the number of turns around the cylinder.

Example: The ciphertext is DDCEO_ (6-character long) and the band is L=3, then N=2 (because 6/3=2).

Write the message on the band and wraps the band around the cylinder (of correct size) and the plain text should appear.

Example:

DCO |

DE_ |

As it is a transposition cipher, the ciphered message has an index of coincidence similar to the language of the plain text.

One can crack Scytale by testing all possible size of the rectangle.

Scytale is a practical application of the Caesar Cipher.

8 to 6 centuries BC

dCode retains ownership of the source code of the script Scytale Cipher. Except explicit open source licence (indicated Creative Commons / free), any algorithm, applet, snippet, software (converter, solver, encryption / decryption, encoding / decoding, ciphering / deciphering, translator), or any function (convert, solve, decrypt, encrypt, decipher, cipher, decode, code, translate) written in any informatic langauge (PHP, Java, C#, Python, Javascript, etc.) which dCode owns rights can be transferred after sales quote. So if you need to download the Scytale Cipher script for offline use, for you, your company or association, see you on contact page !

scytale,box,caesar,line,column,greece,sparta,spire,scroll,parchment,rod

Source : http://www.dcode.fr/scytale-cipher

© 2017 dCode — The ultimate 'toolkit' to solve every games / riddles / geocaches. dCode