# Security Framework for IoT Based Real-Time Health Applications
## 2 Background and Related Work
Likewise, the SC-I needs to pay particular attention to friendly applications, network security, real-time implementation, access control, and better-quality patient data access [28]. Reliable data communication plays a vital role in IoT for reliable data fusion, data mining, context-aware based services, and user privacy [29]. A way of addressing these concerns is to theoretically virtualize the IoT environment across the cloud, which is known as the Cloud-of-Things (CoT), and then connect each device with one or more cloud agents [6; 30] that have developed a CoTAG (CoT agent grouping), algorithm to shape agent groups based on the reliability details and credibility obtained by agents. They carry out the tests in a simulated scenario to check this algorithm's reliability and efficacy. The findings show the possible benefits of plan acceptance. An IoT framework and two-dimensional IoT architecture were developed to provide end-to-end security and resolve the problem of limiting HTTP-CoAP proxies. They proposed a new HTTP-CoAP security model. The easiest way was to encrypt the HTTP payload to provide end-to-end security with HTTP and CoAP compatibility [31]. The Reliable IoT-based Security System Architecture is the first scholarly summary-based proposal. To conclude, this research addresses the concrete realization of the trusted IoT-based security architecture, which consists of secure device modules, reliable perception modules, secure terminal modules, reliable network modules, and advisor modules. Furthermore, it is important to study how to resolve IoT security problems due to accessibility, and incomplete IoT growth [32]. A survey was conducted to analyze IoT safety from three perspectives: three-layered network architecture, security issues at each level, and security countermeasures. Another survey was conducted to expose some IoT security issues through a layer in the network structure and find solutions to the problems mentioned above and key technologies. Such safety measures include those described in the climate layer, including key management and algorithm, security routing protocol, data fusion software, authentication, and access control [33; 34]. A study was conducted to improve the sensor-based attacks and mechanisms in mHealth to ensure patient data privacy. A multilayered taxonomy was undertaken to achieve the goal. Around 3064 papers were collected which were later categorized into surveys on telemedicine, three tired architectures of telemedicine, sensor-based smartphones orientations for user authentication, and other articles. They focused on the second layer in smartphones based on sensors to enhance the authentication in mHealth. Continuous monitoring of patient health store and submit status, and updated records of data need a high-end system. To access patient information in real-time, a secure cloud server allows authenticated users to consult remote medical specialists. Different policy management rules are applied to enhance data privacy and security [35]. Using IoT, multimedia allows meaningful and better communication between the patients and the experts to implement remotely and offers the sector vast innovations. The research in [36] stated that a wireless body area network (WBAN)-based overall three-tier pervasive telemedicine system enables continuous real-time surveillance of health care. To confirm that the private data collected are used solely to support official services by authorized providers, solutions have been proposed that are usually based on a system, called a privacy broker. The proxy interacts with the user on the one hand, and with the services on the other. A balanced solution was proposed between security and feasibility; with the help of a DTH-P2P social network and cryptographic protocol, the system guaranteed the security requirements without the complicated features of the current e-voting system [37]. Suppose a Wireless Sensor Network (WSN) is to be thoroughly combined into the IoT.