This book constitutes the proceedings of the 9th Workshop on RFID Security and Privacy RFIDsec
2013 held in Graz Austria in July 2013. The 11 papers presented in this volume were
carefully reviewed and selected from 23 submissions. RFIDsec deals with topics of importance to
improving the security and privacy of RFID NFC contactless technologies and the Internet of
Things. RFIDsec bridges the gap between cryptographic researchers and RFID developers.
