基于代理的密码货币支付系统

傅晓彤; 陈思; 张宁

doi:10.11959/j.issn.1000-436x.2017121

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基于代理的密码货币支付系统

学术通信 | 更新时间：2024-06-05

- 基于代理的密码货币支付系统
- Proxy-cryptocurrency payment system
- 通信学报 2017年38卷第7期页码：199-206
- 作者机构：
  
  西安电子科技大学网络与信息安全学院，陕西西安 710071
- 作者简介：
  
  [ "傅晓彤（1977-），女，陕西西安人，博士，西安电子科技大学副教授，主要研究方向为公钥密码学及其应用。" ]
  [ "陈思（1993-），女，河南商丘人，西安电子科技大学硕士生，主要研究方向为公钥密码学及其在密码货币中的应用。" ]
  [ "张宁（1979-），女，陕西宝鸡人，博士，西安电子科技大学副教授，主要研究方向为椭圆曲线公钥密码学、密码货币。" ]
- 基金信息：
  
  国家自然科学基金资助项目(61402351);国家111计划基金资助项目(B16037)
- DOI：10.11959/j.issn.1000-436x.2017121
  中图分类号： TP391
- 网络出版日期：2017-07，
  
  纸质出版日期：2017-07-25
- 稿件说明：
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傅晓彤, 陈思, 张宁. 基于代理的密码货币支付系统[J]. 通信学报, 2017,38(7):199-206.

Xiao-tong FU, Si CHEN, Ning ZHANG. Proxy-cryptocurrency payment system[J]. Journal on communications, 2017, 38(7): 199-206.
傅晓彤, 陈思, 张宁. 基于代理的密码货币支付系统[J]. 通信学报, 2017,38(7):199-206. DOI： 10.11959/j.issn.1000-436x.2017121.

Xiao-tong FU, Si CHEN, Ning ZHANG. Proxy-cryptocurrency payment system[J]. Journal on communications, 2017, 38(7): 199-206. DOI： 10.11959/j.issn.1000-436x.2017121.

摘要

利用区块链技术实现的去中心化的密码货币被誉为有史以来最成功的密码货币。用户以公钥作为账户地址，使交易具备匿名性，即隐私的可保护性。然而区块链上记录的交易信息，会给用户隐私带来潜在的泄露威胁；此外，为了防止重复花费，系统约定只有在目标区块之后又有k个后续区块产生才能确认该目标区块上的交易是有效的，这段等待后续区块生成的时间较长，大大降低了交易效率。针对以上问题，提出一种基于代理的密码货币支付系统模型，并给出了基于盲签名算法的实现方案，通过在支付阶段引入代理，缩短了交易确认时间，提高了交易效率，同时，更好地实现了用户的匿名性即隐私保护功能。

Abstract

The decentralized cryptocurrency which was based on block chain has been thought the most successful one in history.In the system

public keys were used as the users’ accounts which guaranteed the anonymity in real transactions.However

all the transaction information was recorded in the block chain

it was a potential threat for users’ privacy which might leak the payment information.Moreover

to avoid double-spending

it was agreed that the transaction on the target block was valid only if another k blocks were generated after the target one.The long waiting time reduced the efficiency of the payment system.A model of payment system based on a proxy-cryptocurrency was proposed

and a solution based on blind signature techniques was proposed.The scheme introduced a proxy in the payment phase

by which transaction confirmation time could be reduced and the transaction efficiency could be improved.Meanwhile

the system implements better anonymity

namely as the privacy protection function.

关键词

Keywords

references

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