A detection method and device for a compromised node in a wireless sensor network

Abstract

The invention relates to a detection method for a compromised node in a wireless sensor network. It analyzes and processes the fictitious false data packet loss attack of the compromised node in the forwarding process of the SEF model data packet, and proposes a trapping mechanism on the way. The opportunity for compromised nodes to make mistakes can effectively differentiate compromised nodes and normal nodes, and detect compromised nodes in wireless sensor networks based on differentiated compromised nodes and normal nodes, and can detect compromised nodes that launch fictitious false packet loss attacks, Indirectly solves the false packet loss attack. In addition, the invention also relates to a detection device for a compromised node in a wireless sensor network.

Description

technical field [0001] The invention relates to the technical field of the Internet of Things, in particular to a method and device for detecting compromised nodes in a wireless sensor network. Background technique [0002] Wireless sensor network is an effective tool for remote environmental monitoring, which is suitable for the following scenarios, such as battlefield monitoring, forest fire monitoring, etc. A large number of sensor nodes are randomly deployed in or near the monitoring area, and the monitored data is transmitted to the remote sink node hop by hop through the ad hoc network. [0003] Generally speaking, sensor nodes are easy targets for attackers due to their limited energy, poor processing power, and lack of tamper-resistant devices. Once a node is captured by the attacker, all the information stored on the node will also be exposed. The attacker can easily implement false data injection attacks and tampering data packet attacks through these compromised ...

AI Technical Summary

Problems solved by technology

[0006] However, in the existing false data halfway filtering scheme, there will be false false data packet loss attack. The false false data packet loss attack refers to the compromise node directly discarding the data packet in the process of halfway filtering, and falsely claiming that it is because of the detection If there is a verification code in the data packet that does not match its corresponding key index, the data packet will be discarded. Since the previous hop node may not be able to distinguish the real situation, it will not be able to deal with the packet loss attack of fictitious false data packets, thus launching false fictitious data packets Compromised nodes for packet loss attacks are extremely harmful because they are difficult to detect

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