ENHANCING ZERO TRUST ARCHITECTURE IN IOT DEVICES THROUGH HARDWARE-ACCELERATED CRYPTOGRAPHY

Abstract

This research paper addresses the critical security challenges faced by Internet of Things (IoT) devices by integrating CryptoCell-310, a hardware-accelerated cryptographic module. It leverages Zero Trust Architecture (ZTA) principles, which mandate continuous verification of device integrity and access permissions, to mitigate risks associated with unauthorized access and data breaches. The study meticulously selects robust cryptographic algorithms AES-GCM for authenticated encryption, ECDSA for digital signatures, and SHA-256 for hashing to align with ZTA and enhance security measures. Through a secure firmware update workflow, the implementation demonstrates significant improvements in performance, power efficiency, and resilience against diverse cyberattacks compared to traditional software-based solutions. The paper provides a comprehensive security analysis, detailing how hardware acceleration via CryptoCell-310 effectively mitigates threats such as side-channel attacks, key extraction attempts, and firmware tampering. The findings advocate for the widespread adoption of hardware-accelerated cryptographic mechanisms as essential components in designing secure, scalable, and resilient IoT ecosystems.