Mauro Conti Roberto Di Pietro Luigi V. Mancini Angelo Spognardi RIPP-FS: An RFID Identification, Privacy Preserving Protocol with Forward Secrecy. 229-234 2007 conf/percom/2007w PerCom Workshops http://dx.doi.org/10.1109/PERCOMW.2007.100 db/conf/percom/percomw2007.html#ContiPMS07