# Secure Monitoring System for IoT Healthcare Data in the Cloud
## 5 Proposed System
### Involved Technologies
#### 5.1.1 Internet of Things (IoT)  
The IoT is a cutting-edge new technology that makes it possible to connect any commonly used physical devices to the internet. This fact creates a vast global network of distinctive items that can communicate with one another to fulfill predetermined tasks, resulting in a variety of positive effects in various scientific fields, including medicine [4]. Surprisingly, wearable IoT-based gadgets can be used in healthcare and have applications, offering a wide spectrum of new possibilities because of pervasive connectivity [5]. Moreover, a secure monitoring system for IoT healthcare data on the cloud is made possible thanks in large part to the Internet of Things (IoT). By connecting various gadgets and sensors to the internet, IoT technology enables data collection, transmission, and exchange. IoT devices can include wearable health monitors, smart medical equipment, remote patient monitoring systems, and more in the context of healthcare. Some major operations that directly relate the IoT to the healthcare sector are the following [4,5,8]:  
* _Data collection and monitoring:_ IoT devices in the healthcare industry are able to continuously collect patient health information, including vital signs like heart rate, blood pressure, temperature, and glucose levels. These gadgets send the information to the cloud for centralized storage and supervision. * _Real-time data streaming:_ Real-time data streaming is frequently provided by IoT devices, allowing healthcare providers and medical experts to view and track patients' health conditions remotely. For the purpose of identifying anomalies and making any necessary interventions in a timely manner, real-time monitoring is essential. * _Cloud-based data storage:_ To securely store the collected data, IoT healthcare devices often rely on cloud-based storage options. In order to ensure that patient health data is available from any location while protecting data integrity and confidentiality, cloud storage enables scalable and cost-effective data management. * _Secure data transmission:_ It is critical to use secure communication protocols (like SSL/TLS) to encrypt data when it is being transported from IoT devices to the cloud. This guarantees data confidentiality and avoids illegal interception. * _Authentication and access control:_ Strong authentication procedures are needed for a secure monitoring system for IoT healthcare data in order to confirm the legitimacy of users accessing the cloud system. Based on the user's role and rights, Role-Based Access Control (RBAC) can be used to limit data access. * _Data encryption and decryption:_ Using encryption methods, such as the previously described Fernet encryption, guarantees that private medical information is encrypted before being saved in the cloud. Only authorized users are permitted to decrypt files, protecting the secrecy of the data. * _Monitoring and anomaly detection:_ IoT devices and cloud systems can be fitted with monitoring and anomaly detection methods to detect any strange patterns or potential security breaches in real time. As a result, the system can better react quickly to security problems. * _Regulatory compliance:_ Cloud-based IoT healthcare systems must abide by all applicable rules, including the GDPR, HIPAA, and other data protection legislation. Compliance guarantees patient confidentiality and the safe handling of medical data. * _Data backup and redundancy:_ In order to guarantee data accessibility and disaster recovery in the event of hardware breakdowns or system outages, cloud-based IoT systems can make use of the redundancy and backup options offered by the cloud provider. Healthcare professionals can monitor patients remotely, continuously measure health metrics, and provide individualized care while ensuring data security and privacy using IoT technologies.