Security and Anonymity of Bitcoin Payments

Peter Korošec (2016) Security and Anonymity of Bitcoin Payments. EngD thesis.

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Abstract

This thesis presents the digital payment system Bitcoin. It describes the cryptography on which the system is based. Presented are the short history of the system and the principles of how it works. Highlighted are the state of anonymity that the system provides while making payments and the safety it guarantees while executing transactions. Within the context of anonymity, the state of masking the users identity within the payment system is described, together with warnings and mechanisms to better hide the users identity. Considering the safety of Bitcoin transactions, potential vulnerabilities of the system are listed. Exposed is a weakness, while accepting fast payments, that enables attackers the execution of the double-spending attack. Practically it is demonstrated, how to execute the attack without special tools, with the use of opensource software recomended and developed by the Bitcoin community.

Item Type:

Thesis (EngD thesis)

Keywords:

Bitcoin, anonymity, double-spending

Number of Pages:

Language of Content:

Slovenian

Mentor / Comentors:

Name and Surname	ID	Function
doc. dr. Mojca Ciglarič	256	Mentor

Link to COBISS:

http://www.cobiss.si/scripts/cobiss?command=search&base=51012&select=(ID=1536823747)

Institution:

University of Ljubljana

Department:

Faculty of Computer and Information Science

Item ID:

3255

Date Deposited:

23 Feb 2016 13:36

Last Modified:

17 Mar 2016 10:28

URI:

http://eprints.fri.uni-lj.si/id/eprint/3255

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