广东工业大学学报 ›› 2021, Vol. 38 ›› Issue (01): 64-68.doi: 10.12052/gdutxb.200041

• 综合研究 • 上一篇    下一篇

一种可自定义金额的数字货币去中心化混淆方案

聂敏航, 欧毓毅   

  1. 广东工业大学 计算机学院，广东 广州 510006
  • 收稿日期:2020-03-11 出版日期:2021-01-25 发布日期:2020-12-01
  • 通信作者: 欧毓毅(1974-)，女，副教授，硕士生导师，主要研究方向为计算机网络系统集成，E-mail：ouyuyi@163.com E-mail:ouyuyi@163.com
  • 作者简介:聂敏航(1994-)，男，硕士研究生，主要研究方向为区块链技术、信息安全
  • 基金资助:
    国家自然科学基金资助项目(61572144)

A Digital Currency Decentralized Obfuscation Scheme with Customizable Amounts

Nie Min-hang, Ou Yu-yi   

  1. School of Computers, Guangdong University of Technology, Guangzhou 510006, China
  • Received:2020-03-11 Online:2021-01-25 Published:2020-12-01

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摘要： 区块链是随比特币等数字货币兴起的一种全新的去中心化架构, 具有去信任化的特点。在区块链中用假名来提供匿名性, 然而研究表明这种匿名并不安全, 通过交易图谱分析可以发现不同假名间的关联性, 找到同一用户的假名, 破坏匿名性。通过地址的混合可以解决这一问题。本文提出了一种去中心化的混币方法, 通过分析证明, 该方法能有效地保障用户的隐私, 还能实现用户不同金额的混合, 增加便捷性。

关键词: 区块链, 数字货币, 隐私保护, 不可链接性, 匿名性

Abstract: Blockchain is a new decentralized architecture with the rise of bitcoin and other digital currencies. In blockchain, pseudonyms are used to provide anonymity. However, studies have shown that such anonymity is not safe. Correlation between different pseudonyms can be found through transaction graph analysis, and the pseudonyms of the same user can be found to destroy anonymity. This problem can be solved by mixing addresses. A decentralized hybrid method is proposed, which is proved by analysis to be able to effectively protect users' privacy and realize the mixing of different amounts of users to increase the convenience.

Key words: block chain, digital currency, privacy protection, unlinkability, anonymity

中图分类号: 

  • TN918.4
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