Anti-replay-attack system for industrial wireless network

Abstract

The invention provides an anti-replay-attack system for an industrial wireless network, which introduces a third-party detection mechanism in order to reduce system resource consumption. The industrial wireless network comprises a gateway, a router, field equipment and network security manager. The anti-replay-attack system for the industrial wireless network comprises a third-party detection module used for detecting whether intrusion data packets and replay attack data packets exist in the industrial wireless network or not and sending detection results to the network security manager, and the network security manager compares the system resource consumption caused by replay attacks with resource consumption brought by using an anti-replay-attack means to determine whether the anti-replay-attack means is used, thereby effectively preventing the anti-replay-attack means from bringing more system resource consumption than the replay attacks, and two time stamps of creation time and sending time are added in the data packet by a sender, so that the certainty and uniqueness of messages can be ensured; a receiver detection mechanism is adopted, and the data packets of the replay attacks are judged and discarded by a receiver so as to solve the problems of ID authentication and the like.

Description

Anti-replay attack system for industrial wireless network technical field The invention relates to the technical field of industrial wireless network and network security technology, in particular to an anti-replay attack system for industrial wireless network. Background technique The rapid development and maturity of wireless technology has greatly improved people's quality of life, accelerated the process of social development, and made information sharing and application more extensive and in-depth. Industrial wireless communication network technology expands the freedom of industrial users, and has the characteristics of convenient, flexible and economical network structure. It has become one of the rapidly developing hot technologies in the field of industrial control and leads the future development direction of industrial automation systems. However, this freedom also brings new challenges. Security issues have become a major obstacle restricting the popularization...

AI Technical Summary

Problems solved by technology

In the existing anti-replay attack technology, no third-party detection mechanism is introduced, which consumes a lot of system resources; the system resources consumed by replay attacks are not compared with the resource consumption caused by anti-replay attack means , so that the resource consumption caused by the anti-replay attack method may be greater than the system resources consumed by the replay attack; in addition, only a single timestamp mechanism cannot guarantee the certainty and uniqueness of the message, and cannot effectively judge Outgoing replay attack packets

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