Encryption method for power distribution automatic system and related device

Abstract

The invention discloses an encryption method for a power distribution automatic system. An IPSec (Internet Protocol Security) tunnel with a very high security coefficient is established between a security gateway and a terminal, so data transmission security of the power distribution automatic system in a network layer is kept; on the basis, bidirectional authentication is carried out between a master station and the terminal through adoption of an asymmetrical key, so security of bidirectional identity authentication is improved; and encryption transmission is employed after the verificationis successful, so the data transmission security of the power distribution automatic system in an application layer is kept, double-data encryption of the power distribution automatic system in the network layer and the application layer is realized, a data security protection level of the power distribution automatic system is improved, and possibility that data is maliciously attacked is reduced. The invention also discloses an encryption device for the power distribution automatic system, a server and a computer readable memory medium which have the beneficial effects.

Description

technical field [0001] The present application relates to the technical field of distribution automation systems, and in particular to an encryption method, an encryption device, a server, and a computer-readable storage medium for a distribution automation system. Background technique [0002] With the rapid construction of the distribution network, the distribution network is taking on more and more important functions in the power system. As an important link that directly contacts users with electricity, its safety is directly related to the power supply capacity and quality, and also affects to the daily production and living activities of users. [0003] The distribution automation network is built in the actual area, and the nodes in the general distribution network communicate through the laying of special communication optical fibers. However, when the land is acquired in the urban area and the construction of the old urban area, the transformation of the distributi...

AI Technical Summary

Problems solved by technology

[0004] However, the existing technology generally only performs encryption processing at the network layer or application layer, resulting in insufficient security protection

Moreover, in the prior art, symmetric keys are usually used for two-way authentication before network communication is established at the application layer, but symmetric keys are less secure and cannot protect the main power distribution station and power distribution terminals. When there is a malicious attack, they cannot Dealing with the problem of fake base station attacks is not conducive to the application environment that requires a higher level of security protection, such as distribution networks, and may cause serious security consequences

Images