The is a type of that rearranges the letters of a message to create the . This cipher operates by writing the message in a across a set number of . Then, the letters are read off in a different pattern, forming the Ciphertext. The process of reversing the is called , where the Ciphertext is converted back into the original .
In this Encryption technique, the message is divided into Blocks, with each Block written in a sequence of Rows and . The arrangement of these Blocks is determined by a specific and a secret . By altering the number of Rows and the pattern of writing, the Rail Fence Cipher enhances the security of the message and ensures .
To break the Rail Fence Cipher, can be applied. This process involves analyzing the patterns of the Ciphertext to deduce the original message. is one method employed in Cryptanalysis, where the frequency of letters or patterns in the Ciphertext is compared to their expected frequencies in the language of the Plaintext.
If the encryption Key is unknown, a can be executed to try every possible Key. The security of the Rail Fence Cipher depends on the and the , which is the total number of possible Keys. By increasing the Key Length and thus enlarging the Key Space, the Cipher becomes more resistant to Brute Force Attacks.
