Wireless sensor network multipath secure transmission method

Abstract

The invention discloses a wireless sensor network multipath secure transmission method, comprising the following steps: 1, in a deployed wireless sensor network, when a source node needs to transmit data to a destination node, sending a routing request message; 2, when an intermediate node broadcasts the routing request message, adding a link message of the intermediate node to the routing request message; 3, a base station obtaining a plurality of routing request messages, obtaining a network topological parameter from the routing request messages, according to interception capability, calculating probability that transmitted data is intercepted; 4, according to requirement Sreq of a user on transmission security, determining sub-data-package order K required by transmission in the time, establishing routing topology, returning a routing response message to the source node; 5, after the source node receives the routing response message, dividing original data into sub-data-packages with K as order, and transmitting through K independent paths. The method can effectively reduce probability that a wireless sensor network is intercepted.

Description

technical field [0001] The invention belongs to the field of wireless communication, and in particular relates to a multi-path secure transmission method. Background technique [0002] Wireless sensor networks are widely used in the Internet of Things, and its network security is an urgent problem to be solved. At present, when an eavesdropper's communication device is within the communication range of a node in a wireless sensor network, it can easily monitor the communication information of the node. It is of great significance to study privacy protection methods for wireless sensor networks and defend against eavesdropping attacks. [0003] In order to realize the privacy protection of wireless sensor network, the methods that can be used include data encryption algorithm and multi-path privacy protection technology. Multi-path routing has the advantages of ensuring information reliability and improving fault tolerance during transmission. The main idea of ​​multi-path ...

AI Technical Summary

Problems solved by technology

[0005] Although the protocol proposed by Alwan provides an idea to defend against eavesdropping attacks, it does not give a clear P u At the same time, the calculation operation increases the energy consumption of the intermediate nodes, and the protocol does not consider factors such as the logical correlation between the paths. If there are cross nodes between the paths, when the cross nodes are tapped, the network is increased. probability of eavesdropping

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