How to design a secure Internet of Things (IoT) system?

IoT technology is increasingly used in environmental monitoring and protection, smart healthcare, smart transportation, food safety traceability, logistics supply chain management, smart agriculture, smart manufacturing and other fields. IoT technology not only facilitates our lives and improves resource utilization, but it also faces many challenges. One of the most important challenges in IoT platform design is the security of the IoT system. Especially for industrial IoT design, the value of the system is usually hundreds or even thousands of times that of consumer products, and its security requirements will also be higher.

Since IoT technology is still in its early stages of development, a security system based on IoT has not yet been formed, and IoT technology itself is still in the process of continuous evolution. Therefore, it is impossible to provide a unified security architecture based on IoT, but the industry has also proposed Some practical security guidelines that can be applied to current IoT systems.

To solve it at the policy level, safety legislation and standard setting at the national level, it is necessary to limit the normative guidance at the industry level and self-discipline at the enterprise level.

From a technical perspective, a guiding framework for the implementation of IoT security is needed. This article discusses how to design a secure Internet of Things (IOT) system from the technical perspective of IoT security.

The security challenges of IoT systems mainly come from the following aspects:

Design flaws: At present, most IoT systems are developed by enterprise DIY and are built using various technologies of different maturity levels. Privacy protection is less considered when designing IoT devices. Security factors such as maintenance and system configuration: Since the Internet of Things is connected to various devices, there is a lack of guidance on device physical security, maintenance management, authorization and authentication.

Best practices: Only a few companies or organizations carry out the development and application of IoT systems, and have accumulated less knowledge in IoT development and industry practices.

Standard Guide: Lack of guidance on the security design process of IoT systems and application control of IoT systems under multi-tenancy.

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