Distributed account book technology-based sensor network safety management method and safety system

A security management and security system technology, applied in transmission systems, computer security devices, electrical digital data processing, etc., can solve the problems of non-existence of blockchain network smart contract, sensor network can not realize security enhanced data sharing function, etc.
CN110445827AActive Publication Date: 2019-11-12SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN ยท China
Current Assignee / Owner
SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI
Publication Date
2019-11-12

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Abstract

The invention provides a distributed account book technology-based sensor network safety management method. The method comprises the following steps of selecting a top layer and a regional server as alliance chain nodes to establish an alliance chain, and storing a distributed account book; generating an asymmetric key for a sensing and aggregation node at the lower layer of the regional server, solidifying a private key in a memory, and writing a public key into an alliance chain; uploading the data collected by the sensing nodes to a regional server through the aggregation node, storing thedata set in an off-chain database of the regional server and encrypting the data set after the verification is passed, calculating a hash value of the data set and writing the hash value into an alliance chain to serve as an evidence; and S3, decrypting the data set, calculating a hash value of the data set, comparing the hash value with the evidence in the step S3 to verify the correctness of thedata set, and returning a uniform resource locator. The invention further provides a safety system. According to the safety management method, a centralized and effective equipment management mechanism and data safety verification are provided for a large-scale sensor network. The problem of data sharing access control is solved.
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Description

technical field

[0001] The invention belongs to the technical field of the Internet of Things, and in particular relates to a security management method and a security system of a sensor network based on distributed ledger technology. Background technique

[0002] Wireless sensor network technology plays an important role in environmental monitoring and governance. Wireless sensor network (Wireless Sensor Network, WSN) refers to the use of a group of widely distributed special sensors to monitor and record the physical information of the environment, and process the collected data in a central location [Sun Hanlin, Zhang Peng, Yan Zheng, et al. .A wireless sensor network architecture based on cloud computing[J].Computer Application Research,2013,30(12):3720-3723]. The wireless sensor network consists of nodes as the basic unit, which are divided into sensor nodes and sink nodes. The sensor nodes carry one or more sensors, including radio transceivers and microcontrollers, ...

Claims

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