Exploring The Security Landscape: A Comprehensive Analysis Of Vulnerabilities, Challenges, And Findings In Internet Of Things (Iot) Application Layer Protocols

Abstract

Network security is significantly impacted by the difficult task of securing Internet of Things (IoT) ecosystems. Strong security protocols must be developed in order to protect the communication networks that link Internet-connected IoT devices. Compared to earlier networks, modern networks have a greater variety of communication protocols, standards, and device capabilities, which makes providing network security more challenging. The three tiers that comprise the traditional Internet of Things (IoT) architecture are Perception, Network, and Application. Allowing a broad variety of security limitations at every level is crucial to ensuring these apps function properly and efficiently. This study primarily focuses on application layer protocols including MQTT, AMQP, XMPP, CoAP, and DDS that are often used in the Internet of Things (IoT). The report also provides an understanding of the application layer protocol security issues. IoT security remains a big issue, which is why several drafts, standards, and research initiatives have been suggested. The root of many security challenges lies in the operational conditions of protocols, notably the absence of universally accepted standards for authentication, authorization, secrecy, and integrity Therefore, a comprehensive examination is necessary to develop effective countermeasures. Most security flaws that arise are caused by the protocol's operating circumstances, which are mostly caused by the lack of widely recognized standards for things like integrity, secrecy, authorization, and authentication. The usage of suitable protocol settings is required to address these common security issues.