@misc{cryptoeprint:2009:310,
    author = {Chong Hee Kim and Gildas Avoine},
    title = {RFID distance bounding protocol with mixed challenges to prevent relay attacks},
    howpublished = {Cryptology ePrint Archive, Report 2009/310},
    year = {2009},
    url = {http://eprint.iacr.org/2009/310},
}