Safety 6LoWPAN communication method and system based on block chain

Abstract

The embodiment of the invention provides a safe 6LoWPAN communication method and system based on a block chain. The method comprises the following steps: constructing a plurality of 6LoWPAN boundary gateways into nodes on a block chain network; electing a master node, and taking the rest nodes as slave nodes; enabling the master node to package a transaction list, including transaction informationreflecting node operation conditions and / or security factors, of each node into a block, and enabling each node to verify and chain the legality of the block through a block consensus algorithm; andacquiring malicious nodes and cutting off an upper cloud channel in the verification process. According to the embodiment of the invention, a plurality of 6LoWPAN boundary gateways form a block chain;transaction lists are generated from transaction information reflecting node operation conditions and / or security factors and packaged into blocks, the blocks are chained through a block consensus algorithm, malicious nodes are confirmed in the block verification process, the security of the 6LoWPAN wireless sensor network is improved, and the 6LoWPAN communication method and system are convenient to trace afterwards.

Description

technical field [0001] The invention relates to the technical field of block chain and wireless sensor network, in particular to a secure 6LoWPAN communication method and system based on block chain. Background technique [0002] Traditional sensor networks are mostly realized by using wired methods. Wired sensor network has the advantages of fast transmission rate and long transmission distance, but this method also has the disadvantages of easy damage to the line, high installation cost, troublesome installation, difficult post-maintenance, and inapplicability in some scenarios such as forest fire monitoring (distributed , high density) and other shortcomings. As a distributed network, WSN wireless sensor network has the advantages of low cost, small size, high flexibility, high reliability, and self-organizing network with the rapid development of modern technology. 6LoWPAN (IPV6over low-power personal areanetworks, IPV6-based low-power wireless personal area network) a...

AI Technical Summary

Problems solved by technology

[0003] However, there are still some problems in the 6LoWPAN wireless sensor network, such as RPL routing attacks, that is, the 6LoWPAN border gateways for low-power and lossy networks are vulnerable to some external attacks, and the attacked border gateways may tamper with transmitted data or Consuming network performance, etc., it is difficult to guarantee the authenticity and integrity of transmitted data

Moreover, it is also difficult to trace the problems of the gateway

[0004] Today, due to its advantages of decentralization, openness, and tamper-resistant information, blockchain has been widely used in the field of information security. However, how to apply blockchain technology to 6LoWPAN wireless sensor networks to improve the security of 6LoWPAN wireless sensor networks? Safety and information traceability have not been reported

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