SoK: How private is Bitcoin? Classification and Evaluation of Bitcoin Mixing Techniques ⋆,⋆⋆
SoK: How private is Bitcoin? Classification and Evaluation of Bitcoin Mixing Techniques ⋆,⋆⋆
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SoK：比特币的私密性如何？比特币混合技术的分类和评估⋆,⋆⋆
DOI：
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发表时间：
2021
期刊：
影响因子：
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通讯作者：
O. Articleinf
中科院分区：
文献类型：
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作者：
Simin Ghesmati;W. Fdhila;E. Weippl;O. Articleinf
区块链是一种颠覆性的技术，它承诺了许多贝内，例如透明度，可追溯性和不变性。然而，这种独特的关键特征已经被证明是一个双刃剑，可以把用户的隐私处于危险之中。与传统系统不同，比特币交易是公开和永久记录的，任何人都可以访问记录的完整历史。尽管使用匿名身份，但对手可以破坏用户的财务隐私，并使用先进的识别技术和技术来识别交易、收款人、接收者和消费服务之间的可能联系（例如，在线购买）。在这方面，已经提出了多种方法来降低财务透明度和提高用户的匿名性。这些技术的范围从使用混合服务到解决不同隐私问题的区块链交易。在本文中，我们特别关注比较和评估比特币区块链中的混合技术，介绍它们的局限性，并强调新的挑战。
Blockchain is a disruptive technology that promises a multitude of benefits, such as transparency, traceability, and immutability. However, this unique bundle of key characteristics has proved to be a double-edgedswordthatcanputusers’privacyatrisk. Unliketraditionalsystems, Bitcointransactions are publicly and permanently recorded, and anyone can access the full history of the records. Despite using pseudonymous identities, an adversary can undermine users’ financial privacy and reveal their actual identities using advanced heuristics and techniques to identify possible links between transactions, senders, receivers, and consumed services (e.g., online purchases). In this regard, a multitude of approaches has been proposed to reduce financial transparency and enhance users’ anonymity. These techniques range from using mixing services to off-chain transactions that address different privacy issues. In this paper, we particularly focus on comparing and evaluating mixing techniques in the Bitcoin blockchain, present their limitations, and highlight the new challenges.
DOI：
10.14722/ndss.2019.23330
发表时间：
2019
期刊：
Proceedings 2019 Network and Distributed System Security Symposium
影响因子：
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作者：
Giulio Malavolta;Pedro A. Moreno-Sánchez;Clara Schneidewind;Aniket Kate;Matteo Maffei
通讯作者：
Giulio Malavolta;Pedro A. Moreno-Sánchez;Clara Schneidewind;Aniket Kate;Matteo Maffei