System and method for security defense of embedded terminal

Abstract

The invention discloses a system and method for security defense of an embedded terminal and belongs to the technical field of smart power network security. The system comprises a security threat detection unit which comprises a distributed data collection module and a security threat detection module; a security threat isolation unit which comprises an isolation policy making module, a terminal isolation module and a network isolation module; and a self-healing unit which receives network isolation information and terminal isolation information, and comprises a self-healing policy making module, an attack source tracing and elimination module, a terminal self-healing module and a network self-healing module. According to the system and the method, when a power network embedded terminal suffers from a security threat, the terminal is enabled to recover to a normal operation state timely and effectively, and further, secure and reliable operation of a power industrial control system areensured.

Description

technical field [0001] The present invention relates to the technical field of smart grid security, and more specifically, to a system and method for embedded terminal security defense. Background technique [0002] Embedded terminals have been widely used in all aspects of the smart grid and constitute an important part of the power industrial control system. While embedded devices are making the grid smarter, they also introduce more security risks. Studies have shown that most embedded devices have a large number of security risks and security holes, and there are backdoors implanted by manufacturers in the firmware of related embedded systems. The security of the equipment largely determines the security of the power industrial control system. Once attacked, it will cause the failure of the power equipment, thus threatening the safe and stable operation of the smart grid. Therefore, in the new situation where the power grid is becoming more and more intelligent, how to...

AI Technical Summary

Problems solved by technology

These achievements only study the defense technology for a specific type of fault, and have not formed a complete system. It is impossible to effectively defend against certain types of network attacks only from the terminal itself or from the network communication side, so it is difficult to effectively resist the power grid embedded terminal. various cyber attacks

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