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Scytale Cipher

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.

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Scytale Cipher -

Tag(s) : Cryptography,Transposition Cipher

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Scytale Cipher

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Scytale Decoder





Without knowing the size

Also on dCode: Caesar Box Cipher

Scytale Encoder





Also on dCode: Caesar Box Cipher

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.

Answers to Questions

How to encrypt using a Scytale ?

Encryption uses a cylinder and a band, L is the number of turns of the band around the cylinder

L=3. One wants to code DCODE.

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

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

DCO
DE_

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

The cipher text is DDCEO_

How to decrypt a 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.

Let L=3, and the ciphertext is DDCEO_' which is 6-character long, then N = 2 (because 6/3=2).

One wraps the band around the cylinder and the plain text should appear.

DCO
DE_

The original plain text is DCODE.

How to recognize Scytale ciphered text?

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

How to decipher Scytale without the size?

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

What are the variants of the Scytale cipher?

Scytale is a practical application of the Caesar Cipherhref.

When Scytale have been invented?

8 to 6 centurieshref BC

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Source code

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Team dCode read all messages and answer them if you leave an email (not published). It is thanks to you that dCode has the best Scytale Cipher tool. Thank you.


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