【Author】
Koshy, Philip; Koshy, Diana; McDaniel, Patrick
【Source】FINANCIAL CRYPTOGRAPHY AND DATA SECURITY, FC 2014
【Abstract】Over the last 4 years, Bitcoin, a decentralized P2P cryptocurrency, has gained widespread attention. The ability to create pseudoanonymous financial transactions using bitcoins has made the currency attractive to users who value their privacy. Although previous work has analyzed the degree of anonymity Bitcoin offers using clustering and flow analysis, none have demonstrated the ability to map Bitcoin addresses directly to IP data. We propose a novel approach to creating and evaluating such mappings solely using real-time transaction traffic collected over 5 months. We developed heuristics for identifying ownership relationships between Bitcoin addresses and IP addresses. We discuss the circumstances under which these relationships become apparent and demonstrate how nearly 1,000 Bitcoin addresses can be mapped to their likely owner IPs by leveraging anomalous relaying behavior.
【Keywords】Bitcoin; Anonymity; CoinSeer
【摘要】在过去的4年里，比特币，一种去中心化的P2P加密货币，获得了广泛的关注。使用比特币进行虚假匿名金融交易的能力，令这种货币对重视隐私的用户具有吸引力。虽然之前的研究已经使用聚类和流分析分析了比特币提供的匿名程度，但没有人展示了将比特币地址直接映射到IP数据的能力。我们提出了一种新的方法来创建和评估这种映射，仅使用5个月来收集的实时事务流量。我们开发了识别比特币地址和IP地址之间所有权关系的启发式方法。我们讨论了这些关系变得明显的情况，并演示了如何利用异常的转发行为将近1000个比特币地址映射到它们可能的所有者ip。
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