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The Rail Fence cipher (also called zigzag) is a transposition cipher consisting in writing a text in zig-zag and reading it in a straight line. How to encrypt using Rail Fence cipher? Rail Fence Encryption uses an integer for the number of levels of the zigzag.
Given a plain-text message and a numeric key, cipher/de-cipher the given text using Rail Fence algorithm. The rail fence cipher (also called a zigzag cipher) is a form of transposition cipher. It derives its name from the way in which it is encoded.
The rail fence cipher (also called a zigzag cipher) is a classical type of transposition cipher. It derives its name from the manner in which encryption is performed, in analogy to a fence built with horizontal rails.
Tool to decode rail fence ciphers. The rail fence cipher is a simple transposition cipher. It is also known as a zigzag cipher. In a rail fence cipher, the plaintext letters are written diagonally in a up-down pattern from left to right.
The Rail fence cipher (also called zigzag cipher) is a transposition cipher. The message is written in a zigzag pattern on an imaginary fence, thus its name. It is not strong as the number of keys is small enough to brute force them.
To encrypt a message using the Rail Fence Cipher, you have to write your message in zigzag lines across the page, and then read off each row. Firstly, you need to have a key, which for this cipher is the number of rows you are going to have.
In order to decrypt a message using the rail fence cipher, we should first choose the number of rails, write the message diagonally in a zigzag pattern using that number, and then combine the letters along each rail from left to right. We will walk through each step with an example below.