Computer Science

Computer Science ›› 2019, Vol. 46 ›› Issue (5): 29-35.doi: 10.11896/j.issn.1002-137X.2019.05.004

Special Issue: Block Chain Technology

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Research on Privacy Protection Strategies in Blockchain Application

DONG Gui-shan, CHEN Yu-xiang, FAN Jia, HAO Yao, LI Feng   

  1. (No.30 Inst,China Electronics Technology Group Corporation,Chengdu 610041,China)
  • Received:2018-05-14 Revised:2018-08-16 Published:2019-05-15

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Abstract: In recent years,more and more privacy protection requirements have been put forward for identity management systems and user-centric self-sovereign identity.As an important means to solve privacy protection problems,blockchain is used by more and more applications.Aiming at the problem of privacy protection in blockchain applications,firstly,this paper studied the privacy protection strategies of mainstream encrypted currencies,including anonymous processing of sender,receiver,content and other links,setting of blockchain access right,innovative methods such as side chain and payment channel,classified storage of data,etc.Then,the efficiency,emphasis and application prospect of each privacy protection strategy were analyzed.Specially,the importance of zero knowledge proof to distributed application based on blockchain was analyzed.Finally,this paper introduced and analyzed the privacy protection strategies in smart contracts,identity management,supply chain and other practical fields,and put forward the prospects of future direction.

Key words: Blockchain application, Privacy protection, Self-sovereign identity, Zero knowledge proof

CLC Number: 

  • TP309
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