The IoT Devices and Secured Communication Architecture and Use Cases The rapid modernization in the domain of digitalized things and ICT xe2x80x93 (Information Communication Technology) is a propulsive expeditious deployment of the IoT. The IoT xe2x80x93 (Internet of Things) are systems which integrate the information, locations, consumers and millions and millions of constrained devices into a global network. The networks need secured tools and privacy in data transmission and a secure way of communication. The essential elements of the IoTs are devices produced by different producers, and they are designed to meet the required targets. In such an environment, it is required the development strongly in explainable security. In this article, it presents a secure and advanced architecture for IoT devices. We discuss use cases as the implementation of IoT based architecture keeping in mind the challenges with the security principles. Additionally, we discussed security procedures for constrained IoT xe2x80x93 (internet of things) devices. The requirements involve describing the services to be provided by the system, and the constraints associated with its operations discussed.

Multilayer Approach to Internet of Things (IoT) Security The Internet of Things (IoT) is a huge, global, distributed network of interlinked heterogeneous devices armed with embedded sensors, actuators and processors enabling them to connect to the internet, exchange data, communicate and interact seamlessly with one another in real time. It enjoys wide range of applications where it holds important data, hence becoming exposed to varying degrees of security and privacy threats which require careful architectural design to address. Consequently, we present in this paper a multilayer security aware IoT architecture that aims to secure the entire system by providing security at all layers to ensure secure data collection, transfer, analysis, storage and usage. That is necessary because each layer of the IoT has vulnerabilities and a successful attack on any layer can have farreaching impact on the whole system. We then proposed a novel security algorithm to protect the IoT system against Denial of Service (DoS) attacks at the application layer, the weakest link in IoT. The algorithm logs record of user activities and actions at given times of the day which it employs to regulate access and prevent DoS attacks. Finally, we evaluated our proposed approach against IoT security and privacy requirements, and it demonstrated better level of security.