委托计算下基于区块链的公平支付方案

李沓; 田有亮; 向康; 高鸿峰

doi:10.11959/j.issn.1000-436x.2020046

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委托计算下基于区块链的公平支付方案

学术论文 | 更新时间：2024-06-05

- 委托计算下基于区块链的公平支付方案
- Block-based fair payment scheme under delegation computation
- 通信学报 2020年41卷第3期页码：80-90
- 作者机构：
  
  1. 贵州大学计算机科学与技术学院，贵州贵阳 550025
  2. 贵州大学密码学与数据安全研究所，贵州贵阳 550025
  3. 贵州省公共大数据重点实验室，贵州贵阳 550025
  4. 贵州大学网络与信息化管理中心，贵州贵阳 550025
- 作者简介：
  
  [ "李沓（1998- ），男，贵州盘县人，贵州大学博士生，主要研究方向为密码学与区块链技术" ]
  [ "田有亮（1982- ），男，贵州盘县人，博士，贵州大学教授，主要研究方向为博弈论、密码学与安全协议" ]
  [ "向康（1993- ），男，湖北仙桃人，贵州大学硕士生，主要研究方向为委托计算与机器学习" ]
  [ "高鸿峰（1975- ），男，贵州遵义人，贵州大学副教授，主要研究方向为网络与信息安全" ]
- 基金信息：
  
  国家自然科学基金资助项目(61662009);国家自然科学基金资助项目(61772008);国家自然科学基金资助项目(U1836205);贵州省教育厅科技拔尖人才基金资助项目([2016]060);贵州省科技重大专项计划基金资助项目(20183001);教育部—中国移动科研基金研发资助项目(MCM20170401);贵州省科技计划基金资助项目([2017]5788);贵州省科技计划基金资助项目（黔科合基础([2019]1098);贵州省科学技术基金资助项目([2008]2121)
- DOI：10.11959/j.issn.1000-436x.2020046
  中图分类号： TP393
- 网络出版日期：2020-03，
  
  纸质出版日期：2020-03-25
- 稿件说明：
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李沓, 田有亮, 向康, 等. 委托计算下基于区块链的公平支付方案[J]. 通信学报, 2020,41(3):80-90.

Ta LI, Youliang TIAN, Kang XIANG, et al. Block-based fair payment scheme under delegation computation[J]. Journal on communications, 2020, 41(3): 80-90.
李沓, 田有亮, 向康, 等. 委托计算下基于区块链的公平支付方案[J]. 通信学报, 2020,41(3):80-90. DOI： 10.11959/j.issn.1000-436x.2020046.

Ta LI, Youliang TIAN, Kang XIANG, et al. Block-based fair payment scheme under delegation computation[J]. Journal on communications, 2020, 41(3): 80-90. DOI： 10.11959/j.issn.1000-436x.2020046.

摘要

传统委托计算中，由于参与者双方的自利行为，存在委托方抵赖和计算方不诚实计算等问题。在支付阶段，需采用第三方来保证支付的公平性，从而导致额外的开销且存在泄露参与者隐私的风险。利用博弈论分析了支付过程中双方达到纳什均衡解，提出一种基于比特币时间承诺的公平支付协议。首先，利用比特币时间承诺技术保证参与者支付的公平性；其次，利用区块链去中心化的特性来取代第三方服务保护各方隐私且实现责任溯源；最后从安全性和正确性对方案进行分析，证明了参与者在支付过程中诚实选择行为策略。所提方案不仅解决了传统委托计算中公平支付的难题而且保护了参与方的隐私。

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.

关键词

Keywords

references

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