Smart power grid user access authorization method

Abstract

The invention provides a smart power grid user access authorization method. The smart power grid user access authorization method includes the following steps that a smart power grid safety connection system is deployed according to the hierarchical structure, after finishing safety connection authorization, a smart electric power terminal sends authority certification information to a connection control assembly, and the connection control assembly conducts computing on the certification information and sends the result to a certification server for role certification and authorization, wherein a remote access layer is the smart electric power terminal, and a connection safety layer is composed of the connection control assembly, an access control assembly and the certification server. According to the smart power grid user access authorization method, relevant certification functions are implemented by the connection control assembly which is used as the third party, the functions of the smart terminal (especially a mobile terminal) are weakened, and therefore privacy information of users can be protected in the authorization process. In addition, appropriate access authorization is conducted according to roles of the users, only access resources which are matched with the roles of the users in the minimum range are open to the users, internal resources are prevented from illegal access to a certain extent, and the safety requirements of a smart power grid are met.

Description

technical field [0001] The invention belongs to the field of access control, relates to terminal access authorization and user authority management in a smart grid, and in particular relates to a smart grid user access authorization method. Background technique [0002] As a branch of the Internet of Things, smart grid is an important public application network. The electric power industry is the most important basic energy industry in the national economic development, and plays an extremely important role in the sustainable development of the national economy. With the development of the world economy, the aggravation of climate change and the adjustment of energy policies in various countries, the relationship between power grids, power plants, governments, customers and other groups has become closer, and customers' requirements for power quality are constantly improving. Renewable energy has gradually become an important power source The world's energy is developing to...

AI Technical Summary

Problems solved by technology

Since the smart grid information exchange security access and access control is still in its infancy, the direct application of the existing access control technology to the smart grid may cause the following problems: (1) The openness of the remote access layer wireless channel makes the smart grid The power grid is easy to be monitored, which makes the privacy and sensitive information of users in the network easy to be stolen. Malicious attackers can access and modify important data of users in the power grid by impersonating users based on the existing background information

(2) The two-way interaction between the power grid and users is enhanced, intelligent collection and intelligent terminal equipment are used in large quantities, a large number of distribution networks and user two-way intelligent terminal equipment need or even must be accessed through wireless public networks, and a large number of user-side access brings security management. here comes more risk

(3) The traditional identity authentication method needs to record the access rights of all users, which will cause the burden on the database server and reduce the user's access speed and access success rate

[0004] At present, traditional access authorization technology can realize trusted authentication of smart grid terminal access, but due to the complexity, bloat and inflexibility of the authentication mechanism, it cannot meet the access requirements of the increasing number of smart grid users for the system, and is not convenient for system and business expansion. , can not protect the privacy information of remote access terminal users well, easily lead to the leakage of user sensitive information, lack of strict authentication and encryption, so that illegal users invade the network to steal user-related data information

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