@misc{cryptoeprint:2006:234,
    author = {Ivan Damg{\aa}rd and Michael {\O}stergaard},
    title = {RFID Security: Tradeoffs between Security and Efficiency},
    howpublished = {Cryptology ePrint Archive, Report 2006/234},
    year = {2006},
    url = {http://eprint.iacr.org/2006/234},
}