Efficient and safe auditable mixed-coin service scheme based on blind signature

Kang QIAO; Hongbo TANG; Wei YOU; Haitao LI

doi:10.11959/j.issn.2096-109x.2020043

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Efficient and safe auditable mixed-coin service scheme based on blind signature

Special Column: Application Exploration on Multi-party Trusted Cooperation based on Blockchain | 更新时间：2024-06-03

- Efficient and safe auditable mixed-coin service scheme based on blind signature
- Chinese Journal of Network and Information Security Vol. 6, Issue 4, Pages: 23-36(2020)
- 作者机构：
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- DOI：10.11959/j.issn.2096-109x.2020043
  CLC： TP399
- Online First：2020-08，
  
  Published：15 August 2020
- 稿件说明：
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Kang QIAO, Hongbo TANG, Wei YOU, et al. Efficient and safe auditable mixed-coin service scheme based on blind signature[J]. Chinese Journal of Network and Information Security, 2020, 6(4): 23-36.
DOI：

Kang QIAO, Hongbo TANG, Wei YOU, et al. Efficient and safe auditable mixed-coin service scheme based on blind signature[J]. Chinese Journal of Network and Information Security, 2020, 6(4): 23-36. DOI： 10.11959/j.issn.2096-109x.2020043.

摘要

混币服务能够为区块链隐私泄露问题提供解决方案，但仍然面临效率瓶颈和安全风险，为进一步提升混币服务的效率和安全防护能力，提出一种高效安全的可审计盲混币服务方案。该方案首先增加了审计措施，在传统的混币模型基础上，增加审计区块链，以记录用户和混币器行为，实现可追溯和可问责；然后利用椭圆曲线算法构造盲签名，替代现有研究中基于双线性对或 RSA 的盲签名算法；最后基于可审计的混币模型和新构造的盲签名算法，提出可审计的盲混币服务协议。仿真分析表明，所提方案在提供隐私保护的同时，具有可审计性、抗盗窃攻击等6种安全特性；在同等安全强度下，较对比方案，所提方法能够有效降低计算开销和存储开销。

Abstract

The mixed-coin service can provide solutions for the privacy problem of blockchain

but it still faces efficiency bottlenecks and security risks.To further improve the efficiency and security protection of the mixed-coin service

an efficient and safe auditable mixed-coin service scheme based on blind signature was proposed.Firstly

this scheme added audit measures.It added an audit blockchain to the traditional mix-coin model to record the behavior of users and mixers

achieving traceability and accountability.Then

this method used elliptic curves algorithm to construct blind signatures instead of blind signature schemes based on bilinear pairs or RSA.Finally

this scheme proposed an auditable blind mix-coin service agreement based on the auditable mix-coin model and the blind signature algorithm based on elliptic curve.Simulation analysis shows that the proposed scheme has six security features

such as auditability and anti-theft attack

while providing privacy protection.Under the same security intensity

the proposed scheme can effectively reduce the computational overhead and storage overhead.

关键词

Keywords

references

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