Journal on Communications ›› 2020, Vol. 41 ›› Issue (3): 80-90.doi: 10.11959/j.issn.1000-436x.2020046

Special Issue: 区块链

• Papers • Previous Articles     Next Articles

Block-based fair payment scheme under delegation computation

Ta LI1,2,Youliang TIAN1,2,3,Kang XIANG1,2,Hongfeng GAO1,4   

  1. 1 College of Computer Science and Technology,Guizhou University,Guiyang 550025,China
    2 Institute of Cryptography &Date Security,Guizhou University,Guiyang 550025,China
    3 Guizhou Provincial Key Laboratory of Public Big Data,Guiyang 550025,China
    4 Network and Information Management Center,Guizhou University,Guiyang 550025,China
  • Revised:2020-02-15 Online:2020-03-25 Published:2020-03-31
  • Supported by:
    The National Natural Science Foundation of China(61662009);The National Natural Science Foundation of China(61772008);The National Natural Science Foundation of China(U1836205);Guizhou Provincial Department of Education Science and Technology Top Talent Support Project([2016]060);Science and Technology Major Support Program of Guizhou Province(20183001);Ministry of Education China Mobile Research Fund Project(MCM20170401);Guizhou University Cultivation Project([2017]5788);Science and Technology Program of Guizhou Province([2019]1098);Science and Technology Foundation of Guizhou Province([2008]2121)

Abstract:

In the traditional delegation computation,due to the self-interested behavior of both participants,there were some problems such as the denial of the principal and the dishonest calculation by the computing party.In the payment phase,a third party was required to ensure the fairness of the payment,which led to extra costs and risks of disclosure of participants' privacy.Game theory was used to analyze the Nash equilibrium solution between the two parties in the payment process,and a fair payment protocol based on time commitment of bitcoin was proposed.Firstly,the bitcoin time commitment technology was used to ensure the fairness of payment.Secondly,the decentralized feature of block chain was used to replace the third-party service to protect the privacy of all parties and realize the source of responsibility.Finally,the scheme was analyzed from the perspective of security and correctness,which proved that the participants choose behavioral strategies honestly in the payment process.The scheme proposed in this paper not only solved the problem of fair payment in traditional delegation computation,but also protected the privacy of participants.

Key words: delegation computation, time commitment, game theory, fair payment

CLC Number: 

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