Lightweight Key-Dependent Dynamic S-Boxes based on Hyperelliptic Curve for IoT Devices

TL;DR

This paper introduces a lightweight, key-dependent S-Box based on Hyperelliptic curves designed specifically for resource-constrained IoT devices, enhancing encryption security.

Contribution

It proposes a novel hyperelliptic curve-based S-Box generation method optimized for IoT, with comprehensive analytical evaluation of its cryptographic strength.

Findings

The S-Box exhibits high nonlinearity and strict avalanche effect.

It is bijective and has a high algebraic degree.

The method produces cryptographically strong S-Boxes suitable for IoT.

Abstract

Security is one of the main issues in Internet of Things (IoT). Encryption plays a curtail role in making these systems secure. Substitution Box (S-Box) has an effective impact in block encryption methods. Due to the restricted resource capacities of IoT nodes, providing a lightweight S-Box is a challenging problem. This paper presents a key-dependent S-Box using Hyperelliptic curve. The proposed S-Box is analytically evaluated using performance criteria including bijection, nonlinearity, strict avalanche effect, and algebraic degree. The evaluation results endorse that the offered S-Box production algorithm is considerably an effective way to generate cryptographic strong S-Box.