31 October 2013
Warnings about the use of contactless payment cards and Near Field Communication (NFC) capable devices are raised in a study published today by the Institution of Engineering & Technology’s (IET) The Journal of Engineering.
A team of researchers from the University of Surrey successfully received a contactless transmission from distances of 45-80cm using inconspicuous equipment, highlighting security concerns to personal data.
NFC technology is in use on more recent mobile phones and on contactless debit/credit cards issued by UK banks.
The team used portable, inexpensive and easily concealable equipment including a pocket-sized cylindrical antenna, a backpack, and a shopping trolley, none of which would raise suspicion if used in a supermarket queue or in a crowded place.
Using this equipment, the team showed how reliably eavesdropping could be carried out at various distances, with good reception possible even at 45cm when the minimum magnetic field strength required by the standard is in use.
The implications for consumers are significant. “The results we found have an impact on how much we can rely on physical proximity as a 'security feature' of NFC devices", said lead academic supervisor, Dr Johann Briffa. "Designers of applications using NFC need to consider privacy because the intended short range of the channel is no defence against a determined eavesdropper.”
Eleanor Gendle, IET Managing Editor at The Journal of Engineering, said: “With banks routinely issuing contactless payment cards to customers, there is a need to raise awareness of the potential security threats. It will be interesting to see further research in this area and ascertain the implications for users of contactless technology with regards to theft, fraud and liability.”
According to Paul Krause, Professor of Software Engineering at the University of Surrey, “Open access is vitally important in order to ensure that the results of publicly funded research are made available to all. It is particularly important for the stimulation of innovation in engineering where new enterprises may not have the financial resources to pay for a range of journal subscriptions. The IET has taken a very significant initiative in establishing a high quality open access journal that covers all aspects of engineering in one resource.”
The paper is available at: http://digital-library.theiet.org/content/journals/10.1049/joe.2013.0087
About the Authors: Thomas P. Diakos is a PhD student in the Department of Computing, University of Surrey, UK. His supervisory team is made up of Dr Johann A. Briffa and Dr Stephan Wesemeyer from the Department of Computing, and Dr Tim W. C. Brown from the Centre for Communication Systems Research. The research was funded by the EPSRC and Consult Hyperion.
About The Journal of Engineering: Launched by the IET in April 2013, The Journal of Engineering (JoE) is a broad, online-only, open access journal, making essential engineering intelligence freely available to the worldwide engineering community online. JoE publishes scientifically sound research with rigorous peer-review and fast turnaround in emerging or cross-disciplinary areas including Electrical and Electronic engineering, Mechanical engineering, Energy engineering, Civil engineering, Micro- and Nanotechnology, Computing and Software, Biomedical engineering and Materials engineering. For more information, visit: www.thejournalofengineering.org
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