Implementation of a Symmetric Block Cipher Technique in Scilab

Abstract

This paper presents an innovative block cipher encryption / decryption technique to enhance data security in digital communications. The proposed algorithm divides the plaintext into blocks applying a series of arithmetic and logical operations to ensure confidentiality. The method’s simplicity facilitates its implementation in resource-constrained environments, such as ebedded systems. A practical case study demonstrates the encryption and decryption of a text file, illustrating the algorithm’s functionality. Future research will focus on evaluating the method’s security strength comparing also its performance with existing encryption standards.