Satellite ad hoc network security framework system and black hole attack resisting method thereof

Abstract

The invention discloses a satellite ad hoc network security framework system based on a block chain technology. The system comprises a data layer, a network layer, a consensus layer, a function implementation layer and an application layer, the data layer stipulates the structure and the content of each block; the satellite nodes of the network layer jointly form a decentralized system structure, and each satellite node is added into the alliance chain system as the identity of an alliance chain member; the consensus layer completes accounting through a right-based consensus mechanism; all satellite nodes in the function implementation layer jointly maintain a block chain account book, routing actions of the satellite nodes in a data plane, announcement of malicious behaviors of the nodes and credible records of current reputation values of all the satellite nodes are achieved according to regulations in an intelligent contract, and the records are stored among all the nodes in a distributed mode; the top layer is an application layer, and the application layer provides network state sensing, black hole attack recognition and reputation reference for satellite nodes of a data plane based on credible records of a bottom layer network, so that network security is guaranteed.

Description

technical field [0001] The invention relates to a method for a satellite self-organizing network to defend against black hole attacks. Background technique [0002] In recent years, with the advent and development of the information age, the demand for global wireless communication and mobile communication has grown rapidly, and it is no longer possible to achieve "seamless" coverage of the communication network only by relying on the traditional ground communication method of communicating with ordinary ground relay stations. . In order to enable people to exchange various information with other people in any way at any time and any place, satellite communication using satellites as relay stations for radio wave transmission or forwarding has become an indispensable means of communication. Compared with traditional terrestrial communication methods, satellite communication covers a wider range: only three GEO satellites are needed to cover all areas of the world except the...

AI Technical Summary

Problems solved by technology

[0013] (1) When a node in the satellite network enters a black hole and becomes a malicious node, if the node is a relay node in a multi-hop route between a source node and a destination node, the source node cannot determine which node in the path it is under attack

[0014] (2) Malicious nodes that launch black hole attacks cannot be effectively punished, and malicious nodes can continue to launch attacks to destroy the network

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