{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,12]],"date-time":"2026-05-12T15:39:57Z","timestamp":1778600397113,"version":"3.51.4"},"reference-count":0,"publisher":"IOS Press","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2012]]},"abstract":"<jats:p>Contactless technology is widely used in security sensitive applications, including identification, payment and access-control systems. Near Field Communication (NFC) is a short-range contactless technology allowing mobile devices to act primarily as either a reader or a token. Relay attacks exploit the assumption that a contactless token within communication range is in close proximity, by placing a proxy-token in range of a contactless reader and relaying communication over a greater distance to a proxy-reader communicating with the authentic token. It has been theorised that NFC-enabled mobile phones could be used as a generic relay attack platform without any additional hardware, but this has not been successfully demonstrated in practice. We present the first generic practical implementation of a contactless relay attack by using only NFC-enabled mobile phones, requiring only suitable mobile software applications. This implementation reduces the complexity of relay attacks and therefore has potential security implications for current contactless systems.<\/jats:p>","DOI":"10.3233\/978-1-61499-143-4-21","type":"book-chapter","created":{"date-parts":[[2025,2,20]],"date-time":"2025-02-20T04:38:17Z","timestamp":1740026297000},"source":"Crossref","is-referenced-by-count":16,"title":["Practical Relay Attack on Contactless Transactions by Using NFC Mobile Phones"],"prefix":"10.3233","author":[{"family":"Francis Lishoy","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"family":"Hancke Gerhard","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"family":"Mayes Keith","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"family":"Markantonakis Konstantinos","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"7437","container-title":["Cryptology and Information Security Series","Radio Frequency Identification System Security"],"original-title":[],"deposited":{"date-parts":[[2025,2,20]],"date-time":"2025-02-20T04:42:16Z","timestamp":1740026536000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.medra.org\/servlet\/aliasResolver?alias=iospressISSNISBN&issn=1871-6431&volume=8&spage=21"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2012]]},"references-count":0,"URL":"https:\/\/doi.org\/10.3233\/978-1-61499-143-4-21","relation":{"is-cited-by":[{"id-type":"doi","id":"10.1007\/978-3-030-89025-4_3","asserted-by":"object"}]},"ISSN":["1871-6431"],"issn-type":[{"value":"1871-6431","type":"print"}],"subject":[],"published":{"date-parts":[[2012]]}}}