Security and Privacy of Mobile Wallet Users in Bitcoin, Dash, Monero, and Zcash

Biryukov, Alex; Tikhomirov, Sergei

Reference : Security and Privacy of Mobile Wallet Users in Bitcoin, Dash, Monero, and Zcash


	Document type :	Scientific journals : Article
	Discipline(s) :	Engineering, computing & technology : Computer science
	Focus Areas :	Security, Reliability and Trust
	To cite this reference:	http://hdl.handle.net/10993/39729

Title :	Security and Privacy of Mobile Wallet Users in Bitcoin, Dash, Monero, and Zcash
Language :	English
Author, co-author :	Biryukov, Alex [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Computer Science and Communications Research Unit (CSC) > ; University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT)]
	Tikhomirov, Sergei [University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > Computer Science and Communications Research Unit (CSC) >]
Publication date :	2019
Journal title :	Pervasive and Mobile Computing
Publisher :	Elsevier
Peer reviewed :	Yes
Audience :	International
ISSN :	1574-1192
Country :	Netherlands
Keywords :	[en] bitcoin ; blockchain ; cryptocurrency ; privacy ; anonymity ; Android
Abstract :	[en] Mobile devices play an increasingly important role in the cryptocurrency ecosystem, yet their privacy guarantees remain unstudied. To verify transactions, they either trust a server or use simple payment verification. First, we review the security and privacy of popular Android wallets for Bitcoin and the three major privacy-focused cryptocurrencies (Dash, Monero, Zcash). Then, we investigate the network-level properties of cryptocurrencies and propose a method of transaction clustering based on timing analysis. We implement and test our method on selected wallets and show that a moderately resourceful attacker can correlate transactions issued from one device with relatively high accuracy.
Permalink :	http://hdl.handle.net/10993/39729

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Open access	biryukov-tikhomirov-mobile-wallets.pdf		Author postprint	2.69 MB	View/Open

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