Multi-sink-based dynamic multi-routing source node location privacy protection method in WSN

Abstract

The invention discloses a multi-sink-based dynamic multi-routing source node location privacy protection method in a WSN. The method comprises the following steps: firstly, a phantom source node P<h>is randomly selected; then, a real data packet is segmented into M parts by the phantom source node P<h>, and M forwarding nodes are randomly selected in a candidate region; a shortest routing strategy is adopted to transmit M real data segments to the forwarding nodes; afterwards, the M real data segments are randomly transmitted to corresponding sink nodes along a grid by the forwarding nodes, respectively, multiple paths simultaneously exist in the network at the same moment to protect the source node location privacy; and the sink node generates a new pseudo data packet and continues to transmit along the clockwise loop to interfere with the judgement of an attacker. According to factors of network scale, the location of the source node, the number of attackers and the like, the segmented parts of the data packet are controlled, and multipath is manufactured. According to the method in the invention, the difficulty of cracking the location of the source data packet and the source node is enhanced, a large number of data packets need to be simultaneously intercepted so as to obtain the location of the source node, and the dynamic multipath improves the use ratio of the multi-sink.

Description

technical field [0001] The invention belongs to the field of wireless sensor network protection source location privacy, and in particular relates to a multi-sink-based dynamic multi-routing source node location privacy protection method in WSN. Background technique [0002] As the basic sensing equipment, the nodes in the wireless sensor network are responsible for sensing, detecting, receiving and sending data, etc. However, due to the preciousness of sensor node detection information, there are often attackers who try to use hotspot analysis, hop-by-hop backtracking, compromise and monitor nodes. Various methods such as data flow, data packet correlation analysis, and signal strength positioning directly threaten the operation and security of the entire network. [0003] It is precisely because in practical applications that the location of the source node is easily exposed is the key issue for the normal operation of the network, so solving the problem of privacy protect...

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Problems solved by technology

[0002] As the basic sensing equipment, the nodes in the wireless sensor network are responsible for sensing, detecting, receiving and sending data, etc. However, due to the preciousness of sensor node detection information, there are often attackers who try to use hotspot analysis, hop-by-hop backtracking, compromise and monitor nodes. Various methods such as data flow, data packet correlation analysis, and signal strength positioning directly threaten the operation and security of the entire network

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