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Erschienen in:
Introduction to Security and Privacy in Social Networks Kapitel lesen Erstes Kapitel lesen

2013 | OriginalPaper | Buchkapitel

An Analysis of Anonymity in the Bitcoin System

verfasst von : Fergal Reid, Martin Harrigan

Erschienen in: Security and Privacy in Social Networks

Verlag: Springer New York

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Abstract

Anonymity in Bitcoin, a peer-to-peer electronic currency system, is a complicated issue. Within the system, users are identified only by public-keys. An attacker wishing to de-anonymize users will attempt to construct the one-to-many mapping between users and public-keys, and associate information external to the system with the users. Bitcoin tries to prevent this attack by storing the mapping of a user to his or her public-keys on that user’s node only and by allowing each user to generate as many public-keys as required. In this chapter we consider the topological structure of two networks derived from Bitcoin’s public transaction history. We show that the two networks have a non-trivial topological structure, provide complementary views of the Bitcoin system, and have implications for anonymity. We combine these structures with external information and techniques such as context discovery and flow analysis to investigate an alleged theft of Bitcoins, which, at the time of the theft, had a market value of approximately US$500,000.

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Vorheriges Kapitel Links Reconstruction Attack
Nächstes Kapitel Privacy-Preserving Data Integration Using Decoupled Data
Fußnoten
2
http://​wikileaks.​org/​support.​html – Retrieved: 2011-07-22.
 
6
The transactions and public-keys used in our examples exist in our dataset. The unique identifier for the transaction t 1 is 09441d3c52fa0018365fcd2949925182f6307322138773d52c201f5cc2 bb5976. You can query the details of a transaction or public-key by examining Bitcoin’s block-chain using, for example, the Bitcoin Block Explorer (http://​www.​blockexplorer.​com).
 
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Metadaten
Titel
An Analysis of Anonymity in the Bitcoin System
verfasst von
Fergal Reid
Martin Harrigan
Copyright-Jahr
2013
Verlag
Springer New York
Buch
Security and Privacy in Social Networks

Print ISBN: 978-1-4614-4138-0

Electronic ISBN: 978-1-4614-4139-7

Copyright-Jahr: 2013

DOI
https://doi.org/10.1007/978-1-4614-4139-7_10

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