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Research On Privacy Data Protection Of Internet Of Things Users Based On Blockchain

Posted on:2021-03-20Degree:MasterType:Thesis
Country:ChinaCandidate:H Y ShaoFull Text:PDF
GTID:2428330647461937Subject:Computer Science and Technology
Abstract/Summary:PDF Full Text Request
The rapid development of the Internet of Things technology has brought great convenience to people's lives.At the same time,a large amount of data is generated in the Internet of Things environment.Many data involve user privacy,and users do not have good control over these data.How to collect and use these data on the basis of protecting user privacy has become an urgent problem to be solved.Traditional data collection methods based on databases and cloud servers hand over control of data to storage service providers,and over-centralized services have single points of failure and high resource costs.This article focuses on decentralized blocks Chain technology has conducted research on the protection of privacy data of Internet of Things users.This paper proposes a solution to the problem of protecting the privacy data of Internet of Things users using blockchain technology.For the identity authentication of Internet of Things users,the identity authentication based on the public key address of the blockchain on the chain and the group signature authentication method on the chain are adopted to solve the problem of anonymity and source tracing in blockchain application scenarios;For the storage of private data of Internet of Things users,a data storage model based on blockchain is proposed.The IPFS is used to store the original data,and the data identification of the original data is generated to verify the copyright and integrity of the data.The decentralized timestamp will be included.The stamped data mark is uploaded to the chain;for the integrity verification of the privacy data of the Internet of Things users,the designed smart contract of the Ethereum platform is used to complete the data chain access operation,and the unique data mark provides guarantee for the data integrity.According to the proposed scheme,the operation scenario of the scheme was simulated based on the IPFS platform and the Ethereum platform.A group signature server that facilitated user calls was used to generate the information in the data identification and verify the correctness of the information,and the user interface is designed and implemented using the React framework.The experimental test results show that the scheme can safely and effectively store data under the premise of protecting user privacy,and has practical feasibility.
Keywords/Search Tags:Blockchain, privacy protection, IPFS, smart contract
PDF Full Text Request
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