Implementation of the Rail Fence Cipher Algorithm Using Python for Text-Based Encryption and Decryption

Shinta Rachma Yulianti, Asca Naufal Atana Sadida

Abstract


In the digital era, the demand for secure data transmission is growing rapidly due to the widespread use of online communication platform. Cryptographic techniques offer fundamental protection by transforming readable data into unreadable formats and vice versa. One classical encryption method, the Rail Fence Cipher, uses a transposition technique to rearrange characters based on a zigzag pattern. This research aims to implement and evaluate the Rail Fence Cipher using the Python programming language. The implementation is executed via a command-line interface, providing users with interactive options for encryption and decryption. Results show that the algorithm effectively transforms plaintext into ciphertext and restores it accurately, validating its educational value. Despite its simplicity and speed, the Rail Fence Cipher's limited resistance to cryptanalysis makes it more suitable for academic learning than secure communication. This study confirms the practicality of classical ciphers for educational purposes and proposes future improvements through GUI enhancement and hybrid encryption techniques. The findings support the use of classical ciphers as foundational teaching tools in the field of cryptography education.

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