Reference : Security and Privacy of Mobile Wallet Users in Bitcoin, Dash, Monero, and Zcash
Scientific journals : Article
Engineering, computing & technology : Computer science
Security, Reliability and Trust
http://hdl.handle.net/10993/39729
Security and Privacy of Mobile Wallet Users in Bitcoin, Dash, Monero, and Zcash
English
Biryukov, Alex mailto [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 mailto [University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > Computer Science and Communications Research Unit (CSC) >]
2019
Pervasive and Mobile Computing
Elsevier
Yes
International
1574-1192
Netherlands
[en] bitcoin ; blockchain ; cryptocurrency ; privacy ; anonymity ; Android
[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.
http://hdl.handle.net/10993/39729

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