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Technology of Information Security
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App. Res. of Comp. Printed Article
Vol. 39, 2022 No. 3
868-873

Coin mixing mechanism in blockchain based on intermediator

Song Jianhua1,2,3
Li Zhikai1
Zhang Baichen1
1. School of Computer Science & Information Engineering, Hubei University, Wuhan 430062, China
2. Engineering & Technical Research Center of Hubei Province in Educational Informatization, Wuhan 430062, China
3. Hubei Province Project of Key Research Institute of Humanities & Social Sciences at Universities(Research Center of Information Management for Performance Evaluation), Wuhan 430062, China
DOI: 10.19734/j.issn.1001-3695.2021.08.0405

Abstract

Coin mixing mechanism is one of the privacy protection technologies of the blockchain, which faces some issues such as low efficiency, insufficient security and DoS attacks. Therefore, this paper proposed a blockchain coin mixing mechanism based on intermediator, called IMShuffle. Firstly, it divided the participants in the coin mixing transaction into different groups at random. Each group member took the initiative to broadcast and sent its own output address to its intermediator, these intermediators sent the received output address to the last node of the group. Then it used the idea of multi-layer encryption to complete the transfer of the output address of the last node between the groups. The last node of the last group received the output addresses of all participants to complete the coin mixing transaction. Experimental analysis shows that the IMShuffle has a mixing time of only 11 s when the participants reach 70. Compared with the running time of the CoinShuffle and TTShuffle mixing mechanism, it greatly improves the efficiency of the mixing transaction and shortens the time of mixing transaction. It protects the privacy of participants in the transaction process and reduces the risk of DoS attacks.

Foundation Support

国家自然科学基金资助项目(61977021)
湖北省技术创新专项重大项目(2019ACA144,2020AEA008)

Publish Information

DOI: 10.19734/j.issn.1001-3695.2021.08.0405
Publish at: Application Research of Computers Printed Article, Vol. 39, 2022 No. 3
Section: Technology of Information Security
Pages: 868-873
Serial Number: 1001-3695(2022)03-039-0868-06

Publish History

[2021-12-10] Accepted Paper
[2022-03-05] Printed Article

Cite This Article

宋建华, 李智凯, 张柏晨. 基于中间人的区块链混币机制 [J]. 计算机应用研究, 2022, 39 (3): 868-873. (Song Jianhua, Li Zhikai, Zhang Baichen. Coin mixing mechanism in blockchain based on intermediator [J]. Application Research of Computers, 2022, 39 (3): 868-873. )

About the Journal

  • Application Research of Computers Monthly Journal
  • Journal ID ISSN 1001-3695
    CN  51-1196/TP

Application Research of Computers, founded in 1984, is an academic journal of computing technology sponsored by Sichuan Institute of Computer Sciences under the Science and Technology Department of Sichuan Province.

Aiming at the urgently needed cutting-edge technology in this discipline, Application Research of Computers reflects the mainstream technology, hot technology and the latest development trend of computer application research at home and abroad in a timely manner. The main contents of the journal include high-level academic papers in this discipline, the latest scientific research results and major application results. The contents of the columns involve new theories of computer discipline, basic computer theory, algorithm theory research, algorithm design and analysis, blockchain technology, system software and software engineering technology, pattern recognition and artificial intelligence, architecture, advanced computing, parallel processing, database technology, computer network and communication technology, information security technology, computer image graphics and its latest hot application technology.

Application Research of Computers has many high-level readers and authors, and its readers are mainly senior and middle-level researchers and engineers engaged in the field of computer science, as well as teachers and students majoring in computer science and related majors in colleges and universities. Over the years, the total citation frequency and Web download rate of Application Research of Computers have been ranked among the top of similar academic journals in this discipline, and the academic papers published are highly popular among the readers for their novelty, academics, foresight, orientation and practicality.

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