A Comparative Analysis on Blockchain versus Centralized Authentication Architectures for IoT-Enabled Smart Devices in...

Area of Science:

• * Cyber-Physical Systems (CPSs) and the Internet of Everything (IoE) rely on smart devices.
• * Smart cities integrate these technologies for services like smart healthcare and transportation.

Background:

• * Smart devices are foundational to architectures like the Internet of Things (IoT), CPSs, and IoE.
• * These architectures enable smart city concepts, impacting various sectors from healthcare to agriculture.
• * Networked smart devices collect data at the network edge for informed decision-making.

Purpose of the Study:

• * To review and categorize authentication mechanisms for IoT-enabled smart devices.
• * To discuss security challenges related to device authentication.
• * To analyze existing authentication schemes based on cost, overhead, and robustness.

Main Methods:

• * Categorization of authentication mechanisms into centralized and distributed architectures.
• * Evaluation and analysis of proposed literature schemes for IoT device authentication.
• * Identification of security issues and challenges in current authentication models.

Main Results:

• * Existing authentication schemes present challenges in computational cost and communication overhead.
• * Lightweight solutions are urgently needed for managing authentication data of IoT assets.
• * Cloud computing offers support, but blockchain, lightweight cryptosystems, and AI present future opportunities.

Conclusions:

• * The security of IoT-enabled smart devices, particularly authentication, is paramount for infrastructure integrity.
• * There is a significant need for efficient and lightweight authentication solutions.
• * Future research should explore blockchain, AI, and lightweight cryptosystems for enhanced IoT security.