Payment System Security

Amongst my main research interests is the security of payment systems, fair exchange [CP16] and anonymity [CP13] protocols. We have also been conducting research in the field of bitcoins and fair exchange protocols [CP81] and exploring the benefits of block chain technologies for other applications. We have also been conducting research in the field of centralised payment systems [CP89]. This research thread is currently leading us into further research questions [CP95] related to NFC payments [CP79] and we practically examine the efficient use of mobile phone sensors for avoiding relay attacks [CP81].