Paper published in a book (Scientific congresses, symposiums and conference proceedings)
Deanonymisation of clients in Bitcoin P2P network
Biryukov, Alex; Khovratovich, Dmitry; Pustogarov, Ivan
2014In ACM Conference on Computer and Communications Security (CCS)
Peer reviewed
 

Files


Full Text
Ccsfp614s-biryukovATS.pdf
Publisher postprint (467.38 kB)
revised version
Download

All documents in ORBilu are protected by a user license.

Send to



Details



Keywords :
bitcoin; privacy; fingerprint
Abstract :
[en] Bitcoin is a digital currency which relies on a distributed set of miners to mint coins and on a peer-to-peer network to broadcast transactions. The identities of Bitcoin users are hidden behind pseudonyms (public keys) which are recommended to be changed frequently in order to increase transaction unlinkability. We present an efficient method to deanonymize Bitcoin users, which allows to link user pseudonyms to the IP addresses where the transactions are generated. Our techniques work for the most common and the most challenging scenario when users are behind NATs or firewalls of their ISPs. They allow to link transactions of a user behind a NAT and to distinguish connections and transactions of different users behind the same NAT. We also show that a natural countermeasure of using Tor or other anonymity services can be cut-off by abusing anti-DoS countermeasures of the bitcoin network. Our attacks require only a few machines and have been experimentally verified. We propose several countermeasures to mitigate these new attacks.
Disciplines :
Computer science
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)
Khovratovich, Dmitry ;  University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Computer Science and Communications Research Unit (CSC)
Pustogarov, Ivan ;  University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Computer Science and Communications Research Unit (CSC)
External co-authors :
no
Language :
English
Title :
Deanonymisation of clients in Bitcoin P2P network
Publication date :
November 2014
Event name :
ACM Conference on Computer and Communications Security
Event organizer :
Association for Computing Machinery (ACM)
Event place :
Scottsdale, Arizona, United States
Event date :
3-11-2014
Audience :
International
Main work title :
ACM Conference on Computer and Communications Security (CCS)
Publisher :
ACM
ISBN/EAN :
978-1-4503-2957-6
Peer reviewed :
Peer reviewed
Available on ORBilu :
since 05 November 2014

Statistics


Number of views
14265 (77 by Unilu)
Number of downloads
14019 (34 by Unilu)

Scopus citations®
 
324
Scopus citations®
without self-citations
319

Bibliography


Similar publications



Contact ORBilu