Privacy protection mechanism for blockchain transaction data

Liehuang ZHU; Hui DONG; Meng SHEN

doi:10.11959/j.issn.2096-0271.2018005

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Privacy protection mechanism for blockchain transaction data

TOPIC：BLOCKCHAIN AND DATA SHARING | 更新时间：2024-06-03

- Privacy protection mechanism for blockchain transaction data
- Big Data Research Vol. 4, Issue 1, Pages: 2018005(2018)
- 作者机构：
- 作者简介：
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- DOI：10.11959/j.issn.2096-0271.2018005
  CLC： TP393
- Online First：2018-01，
  
  Published：15 January 2018
- 稿件说明：
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Liehuang ZHU, Hui DONG, Meng SHEN. Privacy protection mechanism for blockchain transaction data[J]. Big Data Research, 2018, 4(1): 2018005.
DOI：

Liehuang ZHU, Hui DONG, Meng SHEN. Privacy protection mechanism for blockchain transaction data[J]. Big Data Research, 2018, 4(1): 2018005. DOI： 10.11959/j.issn.2096-0271.2018005.

摘要

区块链技术是一种去中心化、去信任化、公开透明的分布式数据存储技术，能够降低信任成本，实现安全可靠的数据交互。然而，攻击者可以轻易地从公开的全局账本中获得所有数据，并通过大数据分析技术挖掘用户交易规律等隐私信息。分析区块链交易数据面临的隐私泄露威胁，描述基于数据分析的攻击方法；介绍以混币机制为代表的交易数据隐私保护机制，简要描述各种混币方法的基本原理，并针对混币过程是否需要中心节点参与的问题分析不同混币机制的优势与缺陷；最后，分析了现有区块链数据隐私保护技术中存在的不足，并展望未来的发展方向。

Abstract

Blockchain technology is a distributed data storage technology that is de-centralized

de-trusted

open and transparent.It can reduce the cost of trust and realize safe and reliable data interaction.However

attackers can easily obtain the transaction data stored in the public ledger

and may extract transaction rules and other privacy information from this data by applying big data analysis techniques.Firstly

the thread of attack of data analysis on blockchain transaction data was analyzed

and the attack methods based on data analysis were described.Then the privacy protection mechanism of transaction data which was represented by mixing mechanism was introduced

the basic principle of various mixing methods was described in brief

and the advantages and disadvantages of different mixing approaches for the problem of whether a central node was needed in the process of mixing were analyzed.In the end

the limitation of the existing technologies and envision the future directions on this topic was discussed.

关键词

Keywords

references

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