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Research On Data Integrity Auditing And Privacy Protection Based On Blockchain

Posted on:2019-08-21Degree:MasterType:Thesis
Country:ChinaCandidate:Y N JiangFull Text:PDF
GTID:2428330626452121Subject:Software engineering
Abstract/Summary:PDF Full Text Request
Nowadays,cloud storage service providers provide users with ideal data storage services due to widely use of big data.However,data outsourcing sometimes causes users to lose control of their data.Therefore,it is a knotty problem that how to make cloud storage service providers honestly protect the data privacy and data integrity when we enjoy convenient services.This paper proposes a data protection scheme to achieve data integrity audit and data privacy protection.The scheme is based on Blockchain technology,and it constructs a peer-to-peer trusted data sharing network.Thus it can solve the problem of data privacy protection and data integrity audit through a set of Blockchain-based protection protocol.The protocol includes two sub-partition protection protocols.According to homomorphic verifier,zero-knowledge-proof technology,and public auditing,the entire audit process is completed without touching the user data raw data.Besides,the protocol ensures that data flow is controllable and traceable by transparently recording user data flow events through record history.Based on prior authorization,it can be guaranteed that the user data flow process is always under user's control and the history is also traceable.Hence we construct a prototype system of data protection scheme via Blockchain technology.The functional and performance testing and the evaluation of the prototype system show that the system meets the requirements of data integrity auditing and data privacy protection.Moreover the system has relatively high performance.In summary,this paper proposes a Blockchain-based protection scheme for data integrity audit and data privacy protection.Then we build a set of protection protocols,design and implement the prototype system in this scenario.The scheme and system are proven to have positive influences on the development of trusted clouds and trusted IoT systems.
Keywords/Search Tags:Blockchain, Data Integrity Audit, Data Privacy Protection
PDF Full Text Request
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