User privacy protection crowd sensing system based on block chain

A technology of crowd sensing system and user privacy, which is applied in the field of user privacy protection crowd sensing system, can solve problems such as privacy theft, user participation reduction, data theft, etc., achieve accurate transmission, solve trust problems, and protect user privacy.

Active Publication Date: 2019-12-20
南方电网互联网服务有限公司
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0004] However, the realization of the traditional K anonymous method is based on a trusted third party, and the trusted third party hardly exists in reality
In addition, after K anonymously separates the data from the users, the system cannot track the corresponding users based on the data, which will affect the system to issue rewards to the corresponding users according to the data quality, and ultimately lead to a decrease in user participation in the system
Blockchain technology is used to build a distributed structure to solve third-party trust issues. However, the distributed structure of blockchain determines the characteristics of data transparency in the system. The data uploaded by users is visible to the entire system, which will lead to data theft. , privacy theft and other issues

Method used

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  • User privacy protection crowd sensing system based on block chain
  • User privacy protection crowd sensing system based on block chain

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Embodiment Construction

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0035] figure 1 It is a schematic structural diagram of a blockchain-based user privacy protection group intelligence system provided by an embodiment of the present invention. The system includes:

[0036] The first mobile terminal publishes tasks on the main block chain, and the main block chain is composed of the first mobile terminal and the second mobile terminal;

[0037] Wherein, the first mobile terminal is a task issuer (Requester), which can independentl...

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Abstract

The invention discloses a user privacy protection crowd sensing system based on a block chain, and the system is characterized in that a first mobile terminal issues a task to a main block chain, andthe main block chain consists of a first mobile terminal and a second mobile terminal; according to a second mobile terminal participating in the task, a plurality of sub-block chains are created according to a preset creation rule; a second mobile terminal located in the sub-blockchain collects data according to the task and encrypts the data, and the second mobile terminal uploads the data to apreset data packet according to a preset random sequence list; and one of the second mobile terminals uploads the data packet to the main block chain. By adopting the method and the device, on the premise that the user can accurately upload the data, the data cannot be matched with the corresponding user, so that the privacy of the user is protected.

Description

technical field [0001] The invention relates to the field of block chains, in particular to a block chain-based user privacy protection group intelligence sensing system. Background technique [0002] In the crowd-sensing system, users need to complete four links: task assignment, data collection, data upload, and reward acquisition from the beginning of the perception task to the end of the task. Due to the geographical requirements of the sensing tasks on the required data, the crowd sensing system will require users to upload sensitive information such as geographic location in the task assignment link, so as to assign the most appropriate tasks to users and maximize system efficiency. In addition, the data collected and uploaded by the user is composed of the recording content of the microphone, GPS and other sensors of the mobile device, which will contain the sensitive information of the user such as private chat, geographical location, etc. In addition, when users ob...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W12/02H04W12/04H04L29/06H04L29/08H04L9/32H04L9/08H04L9/06H04W12/03
CPCH04W12/02H04L63/0421H04L67/1044H04L9/0869H04L9/0643H04L9/3297H04W12/041
Inventor 彭滔刘杰容陈建二王国军朱家维李诗云
Owner 南方电网互联网服务有限公司
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