Defense method for selective forwarding attack in sensor network

Abstract

The invention discloses a method for defending selective transmission attack in a sensor network, which includes the following steps: a sensor node establishes a neighbor table of the sensor node; the sensor node divides sensed perception data into a plurality of data pieces according to a polynomial principle, and the data pieces generate polynomial values by polynomial calculation; the polynomial values are transmitted to a base station along a plurality of different paths according to a multipath data transmission mechanism; the base station receives the polynomial values according to the polynomial principle, then analyzes and restores the original perception data. The method of the invention has the advantages that the perception data are divided into smaller data pieces, and different polynomial values are generated by the polynomial calculation so that a transmission node cannot acquire the content, thus reducing the data communication volume and the receiving delay and preventing the malign mode from falsifying a data package; when the multipath data transmission mechanism is used for transmitting the data package, a next jump node is dynamically selected from the neighbor table to transfer the data package, thus increasing the attacking difficulty of the malign nodes.

Description

technical field [0001] The invention relates to a security technology in a sensor network, in particular to a defense method for selective forwarding attacks in a sensor network. Background technique [0002] The acquisition of information is the premise of realizing informatization, and an important tool for obtaining information about the physical environment is the sensor. Traditional sensors form a sensor network through a bus. In practical applications, many data acquisition systems have the characteristics of large acquisition range, numerous acquisition points, and difficult wiring. This traditional sensor network is difficult to meet the application requirements. At present, breakthroughs have been made in information transmission and processing technology. With the rapid development of microelectronics technology and the increasingly mature technology, sensors are also developing in the direction of integration, miniaturization, and intelligence. In this way, a wir...

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Problems solved by technology

In order to effectively resist the loss of data packets, "A efficient countermeasure to the selective forwarding attack in wireless sensor networks [C]," in TENCON 2007-2007 IEEE Region 10 Conference, pp.1-4, 2007. (proposed at the 2007 TENCON conference "An Effective Method for Responding to Selective Forwarding Attacks in Wireless Sensor Networks") proposes to use multi-path routing to defend against selective forwarding attacks, but its ability to resist attacks is limited. When a malicious node appears on each path, it will be Can completely destroy data transmission

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