【Author】
Aeeneh, Sina; Chervinski, Joao Otavio; Yu, Jiangshan; Zlatanov, Nikola
【Source】2021 IEEE INTERNATIONAL CONFERENCE ON BLOCKCHAIN AND CRYPTOCURRENCY (ICBC)
【Abstract】CryptoNote is a privacy-focused blockchain protocol. Currently, more than 10 different cryptocurrencies including Monero, a popular cryptocurrency with a 1-year average market cap of 2 billion USD, have been developed based on the CryptoNote's protocol. CryptoNote obscures the connection between inputs and outputs of a transaction by adding decoy inputs. In this paper, we introduce probabilistic attacks to the untraceability of CryptoNote which substantially degrades the level of privacy of CryptoNote-style blockchains. We analyze the effectiveness of the proposed attacks and derive their error rates.
【Keywords】blockchain; CryptoNote; privacy; Monero; information theory
【标题】针对Cryptonote型区块链交易不可追踪性的新攻击
【摘要】CryptoNote是一种以隐私为中心的区块链协议。目前，已经基于Cryptonote协议开发了10多种不同的加密货币，包括Monero，一种流行的加密货币，1年平均市值为20亿美元。CryptoNote通过添加诱饵输入来模糊交易输入和输出之间的连接。在本文中，我们将概率攻击引入到CryptoNote的不可追踪性中，这大大降低了CryptoNote类型区块链的隐私级别。我们分析了所提出的攻击的有效性，并推导了它们的错误率。
【关键词】区块链；Cryptonote；隐私性；门罗币；信息论
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