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.

Active Publication Date: 2019-11-12
SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI
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Problems solved by technology

However, in the actual application process, there is still no deployment of blockchain networks and writing of smart contracts (chain codes) customized for security e

Method used

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

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Embodiment Construction

[0041] Below, in conjunction with the accompanying drawings, preferred embodiments of the present invention are given and described in detail, so that the functions and features of the present invention can be better understood.

[0042] Before describing the specific content of the invention, the composition of the sensor network system will be explained first. In a large-scale sensor network, it includes but is not limited to the following elements: sensor nodes, sink nodes, regional servers and regional managers, top-level servers and global managers, and alliance chains.

[0043] Such as figure 1 Shown is a typical sensor network, which shows the network topology and components of the sensor network. The sensor network is basically consistent with the existing layered structure of the sensor network, including bottom-up Layer architecture consists of multiple sensor nodes Sen_i, multiple sink nodes Sink_j, multiple regional servers Org_k and a top-level server Adm. Among...

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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.

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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Application Information

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IPC IPC(8): H04L29/08G06F21/60
CPCG06F21/602H04L67/1097H04L67/12
Inventor 沈国锋周明拓
Owner SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI
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