[1]胡锋鸣,赵红武,金 瑜.ShuffleParty:一种新的区块链隐私保护机制[J].计算机技术与发展,2023,33(03):78-84.[doi:10. 3969 / j. issn. 1673-629X. 2023. 03. 012]
　HU Feng-ming,ZHAO Hong-wu,JIN Yu,et al.ShuffleParty:A New Privacy Protection Mechanism in Blockchain[J].,2023,33(03):78-84.[doi:10. 3969 / j. issn. 1673-629X. 2023. 03. 012]
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ShuffleParty:一种新的区块链隐私保护机制()
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《计算机技术与发展》[ISSN:1006-6977/CN:61-1281/TN]

卷:
33
期数:
2023年03期
页码:
78-84
栏目:
网络空间安全
出版日期:
2023-03-10

文章信息/Info

Title:
ShuffleParty:A New Privacy Protection Mechanism in Blockchain
文章编号:
1673-629X(2023)03-0078-07
作者:
胡锋鸣1; 2 ; 赵红武1; 2 ; 金 瑜1; 2
1. 武汉科技大学 计算机科学与技术学院,湖北 武汉 430065;
2. 湖北省智能信息处理与实时工业系统重点实验室,湖北 武汉 430065
Author(s):
HU Feng-ming1; 2 ; ZHAO Hong-wu1; 2 ; JIN Yu1;  2
1. Dept. of Computer Science & Technology,Wuhan University of Science & Technology,Wuhan 430065,China;
2. Hubei Province Key Laboratory of Intelligent Information Processing & Real-time Industrial,Wuhan 430065,China
关键词:
区块链; 隐私保护; 混币机制; 洗牌节点; 多层加密
Keywords:
blockchain; privacy protection; mixing mechanism; shuffle node; multi-layer encryption
分类号:
TP399
DOI:
10. 3969 / j. issn. 1673-629X. 2023. 03. 012
摘要:
CoinParty 是目前区块链中最为流行的隐私保护技术之一,由于其引入了第三方节点进行混币,存在安全风险;又由于其通过节点之间的传递校验份额进行校验和检验最终地址,导致效率低下。 基于此,为了解决 CoinParty 存在的安全性和效率问题,提出了 ShuffleParty,一种无第三方节点,完全分散的混币机制。 首先,将所有的混币节点生成一个由每个参与者控制的托管地址,将需要混币的金额发送到托管地址中;然后,随机选出多个洗牌节点,将自己的混币交易输出地址用洗牌节点的公钥进行层层加密,交给洗牌节点进行层层解密和洗牌;最后,一个洗牌节点获得了完整的明文地址列表后,将地址列表广播给普通混合者进行验证,并生成共同最终置换。 通过安全分析和实验表明,ShuffleParty 安全性优于CoinParty,并且混币效率也高于 CoinParty。
Abstract:
CoinParty is one of the most popular privacy protection technologies in the block chain at present. Because it introduces third-party nodes to mix currencies,there are security risks. It is also inefficient because it uses checksum to check the final address by passingthe share of checks between nodes. Based on this,in order to solve the security and efficiency problems of CoinParty,we propose ShuffleParty,a fully dispersed currency mixing mechanism without third - party nodes. All the mixed currency nodes are generated into amanaged address controlled by each participant. The amount of the mixed currency needed is sent to the managed address. Then severalshuffle nodes are randomly selected,the output address of the mixed currency transaction is encrypted layer by layer with the public key ofthe shuffle nodes,and give it to the shuffle nodes for decryption layer by layer and mixing. Finally, the address list is given to theordinary mixers for verification, and the common final replacement is generated. The security analysis and experiments show thatShuffleParty is safer than CoinParty,and the efficiency of coin mixing is also higher than CoinParty.

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更新日期/Last Update: 2023-03-10