The security and privacy protection

The security and privacy protection of the Internet of things is the key to the large-scale application of the Internet of things. The multi-source heterogeneity of the Internet of things makes its security face great challenges. As far as a single network is concerned, the Internet and mobile communication network have established a series of effective mechanisms and methods, providing rich information resources for our daily life and work, and changing people's lives and work operation mode. Relatively speaking, the security research of sensor network is still in the initial stage, and a complete solution has not been provided. Due to the resource limitation of sensor network, the research on the security problem of sensor network is more difficult. Therefore, the security research of sensor network will be an important part of the security of the Internet of things. At the same time, how to establish an effective multi network fusion security architecture, establish a unified security model across multiple networks, and form an effective coordinated defense system is also one of the important research directions.