Lightweight wireless sensor network safety small data distribution method

Abstract

The invention discloses a lightweight wireless sensor network safety small data distribution method. The method comprises the following stages that: at a first stage, namely, a system initializing stage, a base station generates a one-way key chain, and adds a key chain commitment value into each sensor node before deploying each sensor node; at a second stage, namely, a data packet preprocessing stage, the base station constructs a legal data packet of specific data items by using a Hash function; at a third stage, namely, a data packet verification stage, each sensor node verifies the received data packet, the data packet is received and the sensor node is updated if the received data packet is a legal data packet, otherwise, the data packet is abandoned directly. Under the consideration of limitation on common sensor node resources, the lightweight wireless sensor network safety small data distribution method has the advantages of resistance to sensor node compromise, high robustness on the aspects of packet loss and data packet transmission out-of-sequence, no need of time synchronism between the base station and each sensor node, and the like. Meanwhile, the lightweight wireless sensor network safety small data distribution method has the excellent characteristics of high efficiency, saving in energy, low storage overhead, resistance to malicious attacks, and the like.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to a lightweight wireless sensor network security small data distribution method. Background technique [0002] At present, the distribution of wireless sensor networks is very wide, and the applications are also diverse, including environmental monitoring, battlefield surveillance and data acquisition in harsh geographical environments. In wireless sensor networks, being able to distribute small amounts of data across the network is a useful operational feature. It allows the base station to write some small programs, commands, queries and configuration parameters to the sensor nodes. It should be emphasized that the small data distribution protocol is different from the code distribution (sometimes also called data distribution or reprogramming) protocol that has been studied intensively. Code distribution is the distribution of new binaries across the network, en...

AI Technical Summary

Problems solved by technology

For example, digital signature verification techniques result in high computational and storage overhead, thus, this method is not suitable for resource-constrained sensor nodes

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