authentication methods in internet-of-things platform: a comprehensive review

Authentication is a critical aspect of securing internet-of-things (iot) platforms, ensuring only authorized devices and user’s access sensitive data and services. one critical aspect of iot is ensuring secure and anonymous authentication protocols to safeguard sensitive data. this paper presents a comprehensive review of authentication methods specifically tailored for iot environments. through an extensive analysis of existing literature, various authentication techniques in iot environments are explored. the review covers key aspects such as security mechanisms, privacy preservation techniques, scalability, and usability of these protocols.& furthermore, the paper discusses challenges unique to iot authentication, such as resource constraints, scalability, and resilience against diverse cyber threats. various authentication protocols and frameworks applicable to iot ecosystems are analyzed, highlighting their strengths, weaknesses, and suitability for different iot use cases. additionally, the review examines recent advancements in authentication technologies like blockchain in the context of iot security. insights from this review aim to provide researchers and practitioners with a deeper understanding of iot authentication methods and inform the development of robust, efficient, and scalable authentication solutions for iot platforms.