This work was carried out by Tom Chothia, Flavio D. Garcia and Matthew Thompson at the University of Birmingham, and by Joeri de Ruiter and Jordi van den Breekel at the Radboud University Nijmegen. If you have any questions about this work please send them to Tom Chothia (T.P.Chothia at cs.bham.ac.uk) and/or Flavio Garcia (f.garcia at bham.ac.uk).

We will be happy to share our relay software with security researchers that are faculty members at a university, however, due to its potential for criminal misuse we will not be making it publicly available.

Part of this work was carried out by Jordi van den Breekel, and Matthew Thompson as their Masters Projects. There project theses contain additional information about the relay and the card's message timing:

• A A Security Evaluation and Proof-of-Concept Relay Attack on Dutch EMV Contactless Transactions by Jordi van den Breekel, Masters Thesis
• Matthew Thompsons thesis will be avilable in April.
• The slides from our presentation at 2015 Conference on Financial Cryptography are avilable as pptx(~50MB contains video) and pdf