Smart power grid distributed ciphertext retrieval method and system model based on alliance block chain

A technology of smart grid and blockchain, which is applied in transmission systems, digital transmission systems, encryption devices with shift registers/memory, etc., and can solve the problems of high reliability and timeliness requirements for data reliability query results

Active Publication Date: 2019-07-19
CHINA ELECTRIC POWER RES INST +1
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  • Abstract
  • Description
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Problems solved by technology

Due to the existence of a large amount of sensitive data in the smart grid, and the high requirements for the reliability of the data, the credibility o

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  • Smart power grid distributed ciphertext retrieval method and system model based on alliance block chain
  • Smart power grid distributed ciphertext retrieval method and system model based on alliance block chain
  • Smart power grid distributed ciphertext retrieval method and system model based on alliance block chain

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Embodiment Construction

[0069] In order to better understand the present invention, the content of the present invention is further illustrated below in conjunction with the examples, but the content of the present invention is not limited to the following examples.

[0070] This implementation uses figure 1 The application scenario of the outsourcing model based on the consortium blockchain is shown, wherein the setting system contains 15 aggregator nodes (the nodes are divided into 3 groups, each group has 5 aggregator nodes, f=1), and the number is { {AID 1 ,AID 2 ,...,AID 5},{AID 6 ,AID 7 ,...,AID 10},{AID 11 ,...,AID 15}}. This example shows how the data acquisition node generates a secure encrypted index based on the data information and stores it in the blockchain, and the client generates a search trapdoor by publishing a transaction, searches the blockchain and returns the query results.

[0071] 1. Data collection:

[0072] Assume that at a certain moment, the data collection node ...

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Abstract

The invention discloses a smart power grid distributed ciphertext retrieval method and system model based on an alliance block chain. The smart power grid distributed ciphertext retrieval method basedon an alliance block chain comprises the following steps of: 1) initializing a system; 2) generating a security index; 3) uploading and storing the index; 4) generating and releasing a search token;5) enabling the intelligent contract to execute a search operation; 6) returning search results. According to the smart power grid distributed ciphertext retrieval method based on the alliance block chain, safe and credible search on sensitive data is realized by utilizing the public, distributed calculation is performed on a search algorithm through an intelligent contract, dynamic division is performed on transactions according to the number of records in an account book, the number of return results in user query, node states in a network and other information, an adaptive endorsement strategy is formulated, and the optimal query efficiency is achieved.

Description

technical field [0001] The invention relates to a smart grid distributed ciphertext retrieval method and a system model based on an alliance block chain, and belongs to the field of smart grid and information security. Background technique [0002] The smart grid needs to monitor data in real time and reliably, discover and eliminate grid faults in time, and dynamically adjust the operating status of the grid according to the grid working data. Due to the existence of a large amount of sensitive data in the smart grid, and the high requirements for the reliability of the data, the credibility of the query results, and the timeliness, the traditional data organization methods and search solutions cannot meet these requirements at the same time. Contents of the invention [0003] In order to solve the above-mentioned problems in the prior art, the present invention provides a smart grid distributed ciphertext retrieval method and system model based on consortium blockchain. ...

Claims

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Application Information

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IPC IPC(8): G06F21/62G06F21/60H04L9/06H04L9/32
CPCG06F21/602G06F21/6227H04L9/0643H04L9/3213H04L9/3247H04L9/3263H04L9/3297
Inventor 张金虎李劲松沈艳李昂关志涛刘雪妍
Owner CHINA ELECTRIC POWER RES INST
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