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Experimental Study on One-Time Password used in Authentication within Norwegian Banking

Naguleswaran, Sivanja
Master thesis
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master thesis (Locked)
URI
https://hdl.handle.net/1956/23023
Date
2020-06-26
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  • Department of Informatics [540]
Abstract
Authentication is a vital part of this fast-growing, digitalized world. Fundamentally, today’s society is more reliant on computer technology and digitalization than ever before. Therefore, the use of dynamic one-time passwords plays a significant role within online banking in Norway by strengthening the level of security. This study examines four tokens provided by DNB, Sparebanken Møre, Sparebank 1 and Nordea used in token-based authentication and the one-time passwords they generate. By studying one-time passwords collected at various time intervals, it was able to reconstruct the internal token-algorithm and the verification protocol. This research argues that three out of four tokens indicate weaknesses that can have damaging effects. This is also proven by explaining a basic theoretical attack, which demonstrates that the success probability of an attack is higher than the expected probability of 10^(-6) or 10^(-8).
Description
Postponed access: the file will be accessible after 2021-06-02
Publisher
The University of Bergen
Copyright
Copyright the Author. All rights reserved

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