Next-Generation Systems and Secure Computing

1Yet Another Move Towards Securing Video Using Sudoku-Fernet

Sunanda Jana¹, Swarnajit Bhattacharya¹, Mrinmoy Sen^1*, Abhinandan Khan², Arnab Kumar Maji³ and Rajat Kumar Pal²

¹Haldia Institute of Technology, WB, India

²University of Calcutta, Kolkata, India

³North-Eastern Hill University, Meghalaya, India

Abstract

In this era of digital communication and multimedia content sharing, ensuring the security and privacy of sensitive video data is of utmost importance. Symmetric key encryption is a widely used technique for securing video content; however, the generation of secure and unpredictable encryption keys remains a challenge. This study proposes a novel approach that employs Sudoku puzzles as a mechanism for generating symmetric keys. Then, by passing the key through fernet module, the Sudoku-Fernet cipher key was extracted for video encryption. The Sudoku puzzle’s inherent properties of uniqueness, complexity, and nonlinearity make it an ideal candidate for key generation. The proposed method combines the strength of the Giant Sudoku instance of size 25 × 25 with a cryptographic fernet module to enhance the security of video encryption systems, offering an innovative solution to protect sensitive video content without affecting cost and time.

Keywords: Symmetric key, fernet, sudoku-fernet cipher key, video encryption, security

1.1 Introduction

Sudoku puzzle [1] is a popular logic-based number-placement game that has gained worldwide popularity. Its structure consists of ...