Zero-Trust Network Access (ZTNA)

TL;DR

This paper provides a comprehensive analysis of Zero-Trust Network Access (ZTNA), detailing its principles, architectures, applications, and challenges to guide researchers and practitioners in modern network security.

Contribution

It offers an in-depth framework and review of ZTNA principles, implementations, and open research challenges in securing complex network environments.

Findings

Analyzes ZTNA architectures and methodologies

Highlights open challenges in ZTNA deployment

Provides a resource for future research directions

Abstract

Zero-Trust Network Access (ZTNA) marks a significant shift in network security by adopting a "never trust, always verify" approach. This work provides an in-depth analysis of ZTNA, offering a comprehensive framework for understanding its principles, architectures, and applications. We discuss its role in securing modern, complex network environments, which include cloud platforms, Internet of Things (IoT) devices, and hybrid enterprise networks. Our objective is to create a key resource for researchers and practitioners by reviewing critical methodologies, analyzing current implementations, and highlighting open challenges and research directions.