Scytale Cipher
Yaser Rahmati | یاسر رحمتی
Last updated
Yaser Rahmati | یاسر رحمتی
Last updated
The Scytale Cipher is one of the simplest forms of transposition ciphers. It’s an ancient cipher used by the Spartans, and it works by wrapping a strip of parchment around a cylinder and writing the message across the length of the cylinder. When the parchment is unwound, the letters are scrambled, and only someone with a cylinder of the same diameter can read the message. Here’s a step-by-step guide to using the Scytale Cipher:
Encryption:
Step 1: Choose the diameter of the cylinder (this will be your key, nnn).
Step 2: Write the plaintext message across the length of the cylinder, wrapping the message around it.
Step 3: Read off the message by columns.
Decryption:
Step 1: Reconstruct the cylinder with the same diameter as the one used for encryption.
Step 2: Write the ciphertext message around the cylinder.
Step 3: Read off the message by rows.
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